JP4632912B2 - In-vehicle weighing device and setting method of in-vehicle weighing device - Google Patents

Description

  The present invention relates to a vehicle-mounted weighing device that measures the weight of an object such as a liquefied gas accommodated in a tank (container) placed on a bulk lorry or the like.

  2. Description of the Related Art A vehicle equipped with a container such as a tank for storing the contents therein, such as a bulk lorry, a tank lorry, a garbage truck, or a vacuum truck, is already known which has a weighing device for checking the weight of the contents.

  As this type of in-vehicle weighing device, for example, in Patent Documents 1 to 3, a load cell is interposed between the frame of the vehicle body and the container, the load receiving portion side of the load cell is fixed to the container, and the load cell is fixed The thing which fixed the part side to the flame | frame of the vehicle body is disclosed. This structure has an advantage that the configuration is extremely simple because the load cell is simply fixed to both the frame and the container of the vehicle body, but has the disadvantage that the measurement accuracy is poor as described below.

  A vehicle equipped with this type of in-vehicle weighing device has a structure in which the rigidity of the container is kept extremely high so as to keep the safety extremely high so that the contents in the container do not leak outside. Generally, the frame of the vehicle body is low in rigidity itself as compared with the rigidity of the container. However, in the case where the above-described on-vehicle weighing device is not provided, the frame of the vehicle body and the container having high rigidity are combined by using bolts or the like to form an integrated structure. It is a structure.

  On the other hand, when a load cell is interposed between the container and the vehicle body frame, and the load cell is fixed to both the container and the vehicle body frame, when the installation surface of the vehicle is horizontal, The twisting of the weighing accuracy of the in-vehicle weighing device is relatively small. Further, even when the installation surface is inclined, when the inclination angle is constant and the four wheels of the vehicle are substantially on the same plane, the inclination angle is disclosed in, for example, Patent Document 4 and the like. It is possible to keep the accuracy of calculation small by correcting with a system for calculating a correction value for.

  However, when the road surface (installation surface) on which the vehicle is in contact is not a uniform flat surface, it is partially inclined or protruding, and has an irregular shape. In the vehicle having the above, when only one wheel has a different vertical height as compared with the installation surface of the other three wheels, the body frame tends to be deformed due to torsion acting on the body frame.

  In this case, since the container has high rigidity and is strong, eventually, a force to deform from the vehicle body frame side to the load cell, that is, a lateral load acts. This lateral load becomes an interference force with respect to the vertical load of the mass of the contents in the container to be weighed, and hinders and reduces the weighing accuracy.

  The interference force that hinders the weighing accuracy is in addition to the torsional deformation of the body frame. That is, as an element of the interference force, there are a temperature difference between the body frame and the container, and a difference in thermal expansion strain due to a difference in heat conduction. This interference force is a very large value and greatly hinders the weighing accuracy of the on-vehicle weighing device.

  Here, generally, the vehicle body frame provided with the vehicle-mounted weighing device has a length in the front-rear direction larger than the length in the left-right direction (that is, the vehicle width), and the load cell of the vehicle-mounted weighing device is a container on the vehicle body frame. Are often disposed at four locations near the front, rear, left and right ends in a plan view in the region where the is placed. Accordingly, the load cells are arranged such that the dimension between the load cells in the front-rear direction of the vehicle body is larger than the dimension between the load cells in the vehicle body left-right direction. Therefore, the lateral load due to the difference in thermal expansion strain as described above (substantially horizontal load including the left and right direction and the front and rear direction) is a force acting between the front and rear load cells rather than the force acting between the left and right load cells. Is bigger.

  In response to this, as a technique for improving the lateral load acting between the load cells before and after greatly hindering the weighing accuracy of the on-vehicle weighing device, Patent Document 5 discloses a structure in which the load cell is configured to be slidable in the longitudinal direction of the vehicle body. Is disclosed. By adopting such a structure, the lateral load acting in the front-rear direction can be brought close to 0, and a certain effect can be expected. However, in the structure disclosed in Patent Document 5, thermal expansion in the left-right direction of the vehicle body is ignored, and no lateral force due to vehicle body twisting other than thermal expansion is taken into consideration. It remains as an issue.

  As another technique for reducing the lateral load, Patent Document 6 describes that a container is supported by a plurality of load cells (load detectors) placed on a body frame, and the container moves in the front-rear direction with respect to the body frame. A forward / backward movement restricting device that restricts movement, a left / right movement restricting device that restricts movement of the container in the left-right direction with respect to the vehicle body frame, and a lashing device that can selectively restrict the vertical movement of the container. The structure of a garbage truck provided with a is disclosed.

  Here, the front-rear movement restricting device and the left-right movement restricting device are provided at four locations in the front-rear and left-right directions. The forward / backward movement restriction device uses a so-called rod in the front-rear direction, in which a rod extending in the front-rear direction is connected between a bracket erected on the outer side of the vehicle body and a bracket erected on the outer side of the main girder. This structure restricts the movement of the container in the front-rear direction with respect to the vehicle body frame. In addition, the right and left movement restriction device has a structure in which a rod extending in the left and right direction is connected between a bracket standing on the outer side of the vehicle body and a bracket suspended from the container, so-called a rod is rubbed in the left and right direction Thus, the container is always restricted from moving in the left-right direction with respect to the vehicle body frame. It should be noted that a more specific configuration for these is not described. Further, the lashing device pivotally supports the cylinder on the inner surface of the vehicle body, forms a long hole in the bracket suspended from the container, and engages the end portion of the cylinder with the long hole. When the vehicle is running, the cylinder is prevented from moving upward from the body frame as a secured state with the cylinder retracted, while during weighing, the cylinder retracted part is extended to extend the secured state. It comes to cancel.

  In the structure of the garbage truck disclosed in the above-mentioned Patent Document 6, the configuration is such that the forward / backward and left / right direction restricting operations are always performed by the forward / backward movement restricting device and the left / right movement restricting device, including during travel and weighing. is there. Therefore, when the connecting portions of the rods provided in the forward / backward movement restricting device and the left / right movement restricting device are in contact with the brackets provided at both ends thereof, Since the lateral load due to thermal expansion or the like and the lateral load due to thermal expansion are received by the forward / backward movement restricting device or the left / right movement restricting device, there is an advantage that these lateral loads do not act on the load cell. However, on the other hand, at these contact points, interference is caused by the forward / backward movement restricting device or the left / right movement restricting device, which eventually becomes a factor that hinders measurement accuracy.

  In order to prevent the measurement accuracy from being hindered in this way, it is considered to adjust the position so that there is a gap in the connecting portion between the rod and the bracket in the forward / backward movement restriction device or the left / right movement restriction device during weighing. It is done. However, it is necessary to adjust the gap so that there is no gap during measurement while adjusting the gap so that it takes a long time for weighing. It will depend on experience and will be very unreliable.

  Also, during weighing, set the gap as wide as possible so that there is as much gap as possible in the connecting part between the rod and bracket in the forward / backward movement restricting device and left / right movement restricting device to minimize degradation of weighing accuracy. Is also possible. However, when the vehicle is driven with the gap set to be wide in this way, the container will swing by the gap during the run, so-called rattling occurs, and the danger during running increases. . In addition, the connecting portion of the forward / backward movement restricting device and the left / right movement restricting device is likely to be damaged or worn, and the position of the container fluctuates within the gap. This shifts the position (ie, the load center position), and this also reduces the measurement accuracy.

  In order to cope with this, there is an in-vehicle weighing device disclosed in Patent Document 7 which has already been filed by the inventors of the present application. This in-vehicle weighing device includes a tightening device that fastens the vehicle body frame and the container and a lifting device that lifts and lowers the container, and releases the tightening of the vehicle body frame and the container by the tightening device during measurement. The container is lifted from the vehicle body frame, and the container is supported by a plurality of load cells only at the time of weighing, and is weighed.

According to this configuration, since the container is supported in a state where the position of the container is regulated at a predetermined position by the tightening device during traveling, problems such as rattling of the container during traveling can be prevented. In addition, since the container is supported by a plurality of load cells in a state where the tightening device is released at the time of measurement, measurement can be performed with extremely high accuracy in a posture close to ideal.
JP 2004-224502 A JP 2004-69323 A Japanese Patent Laid-Open No. 2001-74540 JP-A-8-93045 Japanese Patent Laid-Open No. 2002-340662 Japanese Utility Model Publication No. 1-164205 JP 2002-148108 A

  However, the on-vehicle weighing device disclosed in Patent Document 7 is configured so that the entire container is lifted and lowered by the lifting device and is loaded so that the container is supported by the load cell at the time of weighing. There is a problem that the structure as an in-vehicle weighing apparatus is complicated and the manufacturing cost becomes extremely high.

  The present invention solves the above-mentioned problems and problems, and it is possible to minimize the shaking of the container during traveling, but when measuring the weight, the weight of the container including the contents is extremely good. It is an object of the present invention to provide an in-vehicle weighing device and a setting method for the in-vehicle weighing device that can measure with high accuracy and can also reduce the manufacturing cost.

In order to solve the problems and problems described above, the common configuration of the on-vehicle weighing device according to claims 1, 2, and 5 of the present invention is such that a container for storing the contents is mounted on the frame of the vehicle body, A vehicle-mounted weighing device that fixes a plurality of load cells on a side, calculates a weight of a container by supporting a container with the plurality of load cells and weighing a container including the container, the vehicle body frame and A tightening device that tightens the container together, and a lateral movement restricting device that restricts the container from moving laterally with respect to the vehicle body frame, and is configured to always support the container by the load cell. Weighing with the plurality of load cells in a state where the tightening with the vehicle body frame by the tightening device is released and the lateral movement restriction of the container by the lateral movement restriction device is released. The features.

  In this configuration, when the vehicle is not running, such as when the vehicle is running, the body frame and the container are fastened to each other by the tightening device, and the container is moved laterally with respect to the body frame by the lateral movement restriction device. regulate. Thereby, the movement of the container relative to the vehicle body frame during traveling is restricted by the tightening device or the lateral movement restricting device, and the rattling of the container can be minimized. Further, during weighing, weighing is performed by a plurality of load cells in a state where the tightening with the vehicle body frame by the tightening device is released and the lateral movement restriction of the container by the lateral movement restriction device is released. Thereby, since the lateral force due to thermal expansion or twist does not act on the load cell at the time of weighing, the weight of the container including the contents can be measured with extremely good weighing accuracy. Moreover, since the raising / lowering apparatus which raises / lowers a container is unnecessary, manufacturing cost can be reduced and a structure can also be simplified.

Moreover, the common structure which concerns on the vehicle-mounted weighing | measuring device of Claim 1, 2, 5 of this invention is provided with two or more horizontal movement control apparatuses, and each horizontal movement control apparatus is provided in the vehicle body side or the container side. An insertion shaft body of the shaft center and a hole portion provided on the container side or the vehicle body side, into which the insertion shaft body is inserted, are formed so as to be freely inserted and removed vertically with respect to the insertion shaft body, and the hole And a lateral movement restricting member that restricts lateral movement by contacting the insertion shaft body from the outer peripheral side.

  With this configuration, by inserting the insertion shaft body into the lateral movement restricting member at the time of non-weighing, the position of the container with respect to the vehicle body frame is restricted in both the left and right direction and the front and rear direction (lateral direction), which is relatively easy. Position control can be performed satisfactorily with a simple configuration.

Moreover, the common structure which concerns on the vehicle-mounted measuring apparatus of Claim 1, 2 of this invention is such that a lateral movement control apparatus has a predetermined clearance gap between an insertion shaft body and a horizontal movement control member at the time of lateral movement regulation. A hole serving as a reference for positioning the vehicle body frame and the tank when the horizontal movement restriction device is shifted from the horizontal movement restriction release state to the horizontal movement restriction state in one of the plurality of lateral movement restriction devices. A lateral movement restricting member is provided.

Moreover, the common structure which concerns on the vehicle-mounted measuring apparatus of Claim 1, 2 of this invention is such that a lateral movement control apparatus has a predetermined clearance gap between an insertion shaft body and a horizontal movement control member at the time of lateral movement regulation. It is arrange | positioned and the said clearance gap differs for every horizontal movement control apparatus, It is characterized by the above-mentioned.

  With this configuration, the gap between the insertion shaft body and the lateral movement restricting member is reduced by the amount that the gap can be reduced as compared with the case where all the lateral movement restricting devices have the same wide dimensions. be able to.

Further, the in-vehicle weighing device according to claim 1 of the present invention serves as a reference for alignment between the vehicle body frame and the tank when shifting from the lateral movement restriction release state to the lateral movement restriction state as the lateral movement restriction device. A first lateral movement restriction device provided with a lateral movement restriction member having a hole, and a second lateral movement device arranged at the same position in the front-rear direction and at different positions in the left-right direction with respect to the first lateral movement restriction device With respect to the lateral movement restriction device, the third lateral movement restriction device arranged at the same position in the left-right direction and at different positions in the front-rear direction with respect to the first lateral movement restriction device, and the first lateral movement restriction device And at least a fourth lateral movement restricting device disposed at different positions in the left and right direction and the front and rear direction. In the first lateral movement restricting device, there is a gap between the insertion shaft body and the lateral movement restricting member. , Shaped to be substantially uniform in the circumferential direction In the second lateral movement restricting device, in the gap between the insertion shaft body and the lateral movement restricting member, the front-rear direction gap is the insertion shaft body and the lateral movement restricting member of the first lateral movement restricting device. In the third lateral movement regulating device, the gap between the insertion shaft body and the lateral movement regulating member is formed to be larger than the gap in the front-rear direction. In the gap, the gap in the left-right direction is substantially the same as the gap between the insertion shaft body of the first lateral movement restriction device and the lateral movement restriction member, so that the gap in the front-rear direction is larger than the gap in the left-right direction. In the fourth lateral movement restricting device, the left and right gaps between the insertion shaft body and the lateral movement restricting member are moved laterally with respect to the insertion shaft body of the first lateral movement restricting device. It is formed to be larger than the gap between the regulating member And wherein the door.

  The on-vehicle weighing apparatus setting method of the present invention is a method of setting the laterally restricted state by inserting the insertion shaft body of each lateral movement restricting device into the hole of the lateral movement restricting member. The insertion shaft body of the lateral movement restriction device is inserted into the hole of the lateral movement restriction member, and then the insertion shaft body of another lateral movement restriction device is inserted into the hole of the lateral movement restriction member. More specifically, after the insertion shaft body of the first lateral movement restriction device is inserted into the hole of the lateral movement restriction member, the insertion shaft body of the second lateral movement restriction device or the third lateral movement restriction device. Is inserted into the hole of the lateral movement restricting member, and then the insertion shaft body of the third lateral movement restricting device or the second lateral movement restricting device is inserted into the hole of the lateral movement restricting member. The insertion shaft body of the lateral movement restricting device 4 is inserted into the hole of the lateral movement restricting member.

  In this configuration and method, the gap between the insertion shaft body and the lateral movement restricting member in the first lateral movement restricting device corresponds to the maximum amount of deformation when the body frame tries to deform due to torsion. Set to the smallest possible dimension. Further, the maximum amount of deformation when the left and right gap between the insertion shaft body and the lateral movement restricting member in the second lateral movement restricting device tries to deform due to a twist acting on the vehicle body frame, The sum is set to the sum of the maximum deformation amount based on the difference in thermal expansion strain according to the laterally spaced dimension from the insertion shaft body of the first lateral movement restriction device to the insertion shaft body of the second lateral movement restriction device. . Further, the maximum amount of deformation in the case where the front-rear direction gap between the insertion shaft body and the lateral movement restricting member in the third lateral movement restricting device tries to deform due to the twist acting on the vehicle body frame, It is set to the sum of the maximum deformation amount based on the difference in thermal expansion strain according to the separation dimension in the front-rear direction from the insertion shaft body of the first lateral movement restriction device to the insertion shaft body of the third lateral movement restriction device. . Further, the largest deformation in the fourth lateral movement restricting device when the front and rear gaps between the insertion shaft body and the lateral movement regulating member are deformed by the action of torsion on the body frame. And the maximum amount of deformation based on the difference in thermal expansion strain according to the distance between the insertion shaft body of the first lateral movement restriction device and the insertion shaft body of the third lateral movement restriction device in the front-rear direction. Set to.

  As a result, the gap between the insertion shaft body and the lateral movement restricting member can be minimized, and it is possible to minimize the rattling of the container with respect to the vehicle body frame during traveling. Even if there is a torsional deformation of the body frame due to reasons such as a non-uniform surface, or there is a difference in thermal expansion strain due to a difference in temperature and heat conduction between the body frame and the container, these torsional deformations Further, a change in the relative position in the lateral direction between the vehicle body frame and the container due to a difference in thermal expansion strain can be absorbed by a gap formed between the insertion shaft body and the lateral movement restricting member.

In the vehicle-mounted weighing device according to claim 5 of the present invention, the lateral movement restricting member is supported so as to be movable in the vertical direction by a tightening drive means disposed on the one side of the vehicle body and the container. In addition, the lateral movement restricting member is disposed so as to be engageable with a receiving member disposed on the other side of the vehicle body and the container. A tubular portion formed so as to open downward from the lateral movement restricting member, and the lateral movement restricting member restricts a position of an outer peripheral surface of the tubular portion of the lateral movement restricting member in a lateral direction with respect to the receiving member. And is held in a vertically movable state, and when tightening, the hook-shaped portion of the lateral movement restricting member presses the receiving member to prevent the container from moving up and down relative to the vehicle body and tightens. The insertion shaft body is inserted into the cylindrical portion of the movement restricting member. The inner peripheral surface of the cylindrical portion abuts the insertion shaft body from the outer peripheral side to restrict lateral movement, and the tightening device and the lateral movement restricting device are combined as one unit. It is characterized by that.

By combining the frettage clamping device and the lateral movement restraining device as a unit (the lateral movement restricting twistlock), a movement restricting effect, including the vertical direction of the twistlock, a movement limiting effect on the lateral direction by the lateral movement restricting device Can be obtained with the same unit (lateral movement restricting tightening device), and the position of the container and the frame of the vehicle body can be well regulated. In this case, the weighing unit provided with the load cell and the lateral movement restricting tightening device are arranged in a pair in plan view, so that when the tightening state is released, the lateral movement restricting tightening device Only within the lateral movement regulation range, the relative movement at the location of the load cell is eliminated, and measurement can be performed in a stable state .

  As described above, according to the present invention, the tightening device that fastens the vehicle body frame and the container to each other and the lateral movement restricting device that restricts the movement of the container in the lateral direction with respect to the vehicle body frame are provided. Is supported at all times, and at the time of weighing, it is measured by the plurality of load cells in a state where the tightening with the body frame by the tightening device is released and the movement restriction of the container in the lateral direction by the lateral movement restricting device is released. As a result, it is possible to regulate the movement of the container relative to the body frame during traveling, etc., and to minimize the rattling of the container, but the movement restriction in the lateral direction is released during weighing. As a result, lateral force (lateral load) does not act on the load cell, and the weight of the container, including its contents, can be kept very good by the load cell. It can be reluctant weighing. Moreover, since the raising / lowering apparatus which raises / lowers a container is unnecessary, manufacturing cost can be reduced and a structure can also be simplified.

  Further, the insertion shaft body of the vertical axis and the hole portion of the insertion shaft body can be inserted and removed vertically, and the inner peripheral surface facing the hole portion comes into contact with the insertion shaft body from the outer peripheral side. By including the lateral movement restricting member that restricts lateral movement, the position can be well regulated with a relatively simple configuration.

  Further, by configuring the gap between the insertion shaft body and the lateral movement restricting member to be different for each lateral movement restricting device, thermal expansion due to temperature difference and heat conduction difference between the vehicle body frame and the container. Even if there is a difference in distortion or the installation location of the vehicle is distorted and the body frame is torsioned, it is possible to allow deformation of the body frame due to torsion, but relative to the location where the gap is the smallest. Only position fluctuations are allowed, and rattling of the container can be minimized.

The lateral movement restricting member is supported by the tightening driving means disposed on the one side of the vehicle body and the container so as to be movable in the vertical direction, and is provided on the other side of the vehicle body and the container. The lateral movement restricting member is disposed so as to be engageable with the member. The lateral movement restricting member includes a hook-like portion extending in a hook shape in the lateral direction and a cylindrical portion formed so as to open downward from the hook-like portion. The lateral movement restricting member is provided such that the outer peripheral surface of the tubular portion of the lateral movement restricting member is held in a state in which the position of the tubular portion is laterally restricted with respect to the receiving member and movable in the vertical direction. The hook-shaped portion of the lateral movement restricting member presses the receiving member to prevent the container from being raised and lowered relative to the vehicle body, and tightens, and the insertion shaft body is inserted into the tubular portion of the lateral movement restricting member. The inner peripheral surface of the cylindrical portion is connected to the insertion shaft body from the outer peripheral side. Restricting the lateral movement by contacting said by twistlock and said lateral movement restraining device is combined as one unit, better that the container relative to the vehicle body frame is moved laterally In addition to being able to prevent , the tightening operation and the lateral movement restricting operation can be performed well in one operation.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an overall side view of a bulk lorry equipped with an on-vehicle weighing device according to a first embodiment of the present invention, and FIG. 2 is a schematic plan view of the bulk lorry vehicle body (the tank is schematically indicated by a virtual line). ). As shown in FIGS. 1 and 2, the bulk lorry 1 includes a cab 2 at the front part of the vehicle body, and a cylindrical tank 3 as a container for storing liquefied gas as a storage material at the rear part of the vehicle body, Furthermore, the vehicle-mounted weighing | measuring apparatus mentioned later is provided. Here, the bulk lorry 1 accommodates liquefied LP gas in the tank 3, drives an electric motor or a prime mover provided in the vehicle, and fills the bulk storage tank provided in the facility to be used with the liquefied LP gas. When filling, the in-vehicle weighing device measures and calculates the liquefied LP gas filling weight (weight obtained by subtracting the weight after weighing from the weight including the container before weighing), and supplies the amount according to the weight. It is configured to correspond to the system billed to the (use target facility). An example of the contents in the tank 3 is liquefied LP gas, but is not limited thereto.

  As shown in FIG. 3 and the like, tank frames 4 each having a substantially L-shaped cross section extending in the front-rear direction are disposed in a fixed state at the left and right positions in the lower part of the tank 3. Further, on the vehicle body side, a vehicle body frame 5 having a substantially U-shaped cross section extending in the front-rear direction is disposed in parallel with the tank frame 4 at the left side and the right side of the vehicle. Further, cross members 13 that extend in the vehicle width direction and connect the left and right body frames 5 are disposed at the front and rear positions of the vehicle.

  As shown in FIGS. 4 and 5, there are an upper plate 6 for fixing, a lower plate 8 for fixing, and a connecting bolt 9 for connecting them to the front and rear portions of the upper surface of each body frame 5, respectively. The load cell fixing component is attached, and the load cell 7 is fixed on the fixing upper plate 6 to constitute the measuring unit 15. Then, with the vehicle body frame 5 sandwiched from above and below by the upper and lower fixing plates 6 and 8, these load cell fixing parts are mounted on the vehicle body by connecting bolts 9 that pass through and connect these fixing plates 6 and 8 vertically. By connecting to the frame 5, the load cell 7 is fixed at predetermined positions on the vehicle body frame 5 (front and rear, left and right, that is, four positions on the front left side, front right side, rear left side, and rear right side in plan view). Yes. In this embodiment, as shown in FIG. 1, the front weighing unit 15 is disposed between the front wheel 16 and the rear wheel 17 of the vehicle on the body frame 5 in a side view, The weighing unit 15 is disposed behind the rear wheel 17 of the vehicle on the body frame 5 in a side view.

  On each load cell 7, in order from the bottom, a rocker pin (load metal fitting) 10, a rocker pin receiver 11 that receives this rocker pin 10, and a tank side mounting member 12 that is fixed to the lower surface of the corresponding portion of the tank frame 4. And the tank 3 is supported by the load cell 7 through the rocker pin 10, the rocker pin receiver 11, and the tank side mounting member 12.

  Specifically, a rocker pin (load metal fitting) 10 into which a lower fitting recess 10 a is fitted is placed on a load receiving projection 7 a formed so as to protrude in a convex shape on the upper portion of the load cell 7. While the upper surface of the convex portion 7a '(see FIG. 12) is spherical, the bottom surface of the fitting concave portion 10a of the rocker pin 10 that contacts the spherical portion of the load receiving convex portion 7a is not curved and is simply a planar shape. It is said that. In addition, a load receiving projection 10b is formed on the upper portion of the rocker pin 10 so as to protrude in a convex shape. A fitting recess 11a formed at the lower portion of the rocker pin receiver 11 is fitted into the load receiving projection 10b. It is put together. While the upper surface 10b ′ (see FIG. 12) of the load receiving projection 10b of the rocker pin 10 has a spherical shape, the bottom surface of the fitting recess 11a of the rocker pin receiver 11 that contacts the spherical portion of the load receiving projection 10ba. Has a simple planar shape without bending. Due to the contact relationship between these spherical portions (7a ′, 10b ′) and the flat portion, when the tank 3 is supported by the load cell 7, the load from the tank 3 side is perpendicular to the load cell 7 (horizontal plane). The direction is aligned so as to act in a direction orthogonal to the direction. A columnar part 11b is integrally formed on the upper part of the rocker pin receiver 11, and this columnar part 11b is fitted into a lower cylindrical part 12a formed to protrude from the lower part of the tank side mounting member 12, A tank side mounting member 12 is disposed so as to be movable up and down with respect to the rocker pin receiver 11. A plurality (two in this embodiment) of disc springs 14 are interposed between the tank side mounting member 12 and the rocker pin receiver 11 at the outer peripheral portion of the lower cylindrical portion 12a of the tank side mounting member 12. Even when a vertical impact force is generated between the tank 3 side and the vehicle body frame 5 side when the vehicle travels on an uneven road surface or the like by these disc springs 14, such an impact force is generated. It is configured to absorb. In this embodiment, the upper flat washer 18a fitted in the lower part of the bowl-shaped portion at the upper end of the tank side mounting member 12 and the outer periphery of the lower cylindrical portion 12a of the lower tank side mounting member 12 are fitted. One disc spring 14 is interposed between the lower flat washer 18 a, and the other disc spring 14 is interposed between the lower flat washer 18 a and the lower diameter enlarged portion of the rocker pin receiver 11. It arrange | positions so that a force (elastic force) may act separately.

  As shown in FIGS. 1 and 2, in the vicinity of the connecting portion between the cross member 13 and the vehicle body frame 5 in the vicinity of the measuring portion 15, the body frame 5 side portion and the tank 3 side portion are tightened together. The lateral movement restriction comprising both functions by combining the apparatus and the lateral movement restriction device that restricts the movement of the tank 3 in the lateral direction (front-rear direction and left-right direction) with respect to the vehicle body frame 5 as one unit. A tightening device 20 is provided.

  As shown in FIGS. 1 and 4, the tank frame 4 has a shape that is slightly recessed upward only at a location supported by the measuring unit 15, while a lateral movement restricting tightening device 20 is provided. The horizontal movement is restricted at the lower end position of the tank frame 4, and the tank 3 is arranged at a position as low as possible with respect to the vehicle body frame 5.

  As shown in FIGS. 6 and 7, each lateral movement restricting tightening device 20 includes a box-shaped body-side bracket 21 fixed to an outer portion of the cross-member 13 joint portion of the body frame 5, and the body-side bracket 21. A hydraulic cylinder 22 fixed on the bottom surface of the hydraulic cylinder 22, a first drive link 23 fixed to a retracting rod 22 a that moves upward and downward from the main body of the hydraulic cylinder 22, and the first drive link 23 The second drive link 25 having a short length connected via the first connection pin 24 and the pivot shaft 26 attached so as to extend in the front-rear direction in the vehicle body side bracket 21 are swingably attached. The first driven link 28 having a reverse L-shape when viewed from the back, in which one end of the second drive link 25 is rotatably connected to the upper end of the second drive link 27 via the second connection pin 27, and the vehicle body side bracket 21. A guide rod 29 inserted into a guide hole 21a formed in the surface portion is attached and is disposed so as to be movable up and down in the vehicle body side bracket 21. A second driven link 32 having an upper end connected to the other end of the bracket 21 via a third connecting pin 31 and a lower end of the lifting block 30 connected to the lower end of the lifting block 30 via a fourth connecting pin 40; The flange portion 33f is fixed by a plurality of bolts 33a in a posture extending upward from the upper surface portion, and an insertion shaft body 33 in which a through hole is formed along the central axis, and the insertion shaft body 33 from the upper portion of the lifting block 30. An elevating rod 34 which is attached in a posture extending upward through a bush 33e fitted in the through hole of the elevating rod and moves up and down integrally with the elevating block 30, and laterally from the tank frame 4. A tank side bracket 35 fixed to the tank frame 4 and the lower part of the tank 3 so as to extend flatly, and a horizontal surface part 35 a provided at the lower part of the tank side bracket 35, and fixed to a horizontal surface part 35 a of the tank side bracket 35. A through-hole having the same shape as the through-hole provided is attached to the receiving plate 36 having a rectangular shape in plan view formed through the bush 37 and the upper portion of the elevating rod 34, and is cylindrical so as to open downward from the hook-shaped portion 38c. The cup-shaped body 38 in which the portion 38a is formed, and a projection that protrudes downward from the corner portion of the receiving plate 36 through the horizontal surface portion 35a of the tank-side bracket 35, and is attached in a state where it can be positioned by adjusting the protruding amount. When an overloading weight is applied from the tank 3 side, its tip abuts against the flange portion 33f of the insertion shaft 33, and the load cell 7 is overloaded. And a plurality of overload prevention bolts 39 for preventing this.

  When the retracting rod 22a of the hydraulic cylinder 22 is extended and driven upward, as shown in FIGS. 8 and 9B, the lower portion of the first driven link 28 and the second driven link 32 are provided. The third connecting pin 31 that connects them swings and bends so as to be close to the retracting rod 22a side of the hydraulic cylinder 22 (so that it is on the left side in FIG. 8), and the lifting block 30 The elevating rod 34 and the cup-shaped body 38 are raised, and the cup-shaped body 38 is configured to be substantially detached downward from the insertion shaft body 33.

  On the other hand, when the retracting rod 22a of the hydraulic cylinder 22 is retracted and driven to the lower end, as shown in FIGS. 6 and 9A, the lower portion of the first driven link 28 and the second driven link 32 are provided. And the third connecting pin 31 for connecting them swings away from the retracting / retracting rod 22a side of the hydraulic cylinder 22 (to the right in the drawing of FIG. 8), and the lifting block 30, the lifting rod 34 and the cup The body 38 is lowered, and the insertion shaft body 33 is inserted into the cup-shaped body 38. In this case, the position of the axis o of the third connecting pin 31 that connects the first driven link 28 and the second driven link 32 is set to the pivot shaft 26 that is the rotation center of the first driven link 28, 2 A position shifted from the line L1 connecting the fourth connection pin 40, which is the rotation center of the driven link 32, to the side away from the retracting rod 22a side of the hydraulic cylinder 22 (right side in the drawing of FIG. 8). Yes.

  6, 8, and 9, reference numeral 51 denotes an upper limit detection switch including a limit switch that detects that the retractable rod 22 a of the hydraulic cylinder 22 is protruded and the elevating block 30 is moved to the upper end position. Is a lower limit detection switch composed of a limit switch or the like for detecting that the retracting rod 22a of the hydraulic cylinder 22 is retracted and the lifting block 30 is moved to the lower end position.

  As shown in enlarged views in FIGS. 9A and 9B, the insertion shaft 33 is easily introduced into the cup-shaped body 38 when the insertion shaft 33 is inserted into the cup-shaped body 38. A thin diameter portion 33b is formed on the upper portion of the insertion shaft 33, and subsequently, a tapered surface 33c having a diameter that is increased toward the lower side and a subsequent large diameter portion 33d are formed. Further, a guide member 41 having a tapered surface that extends downward is also fitted to the inner periphery of the lower end portion of the cup-shaped body 38 to guide the distal end portion of the insertion shaft body 33 into the cylindrical portion 38 a of the cup-shaped body 38. ing. A bush 42 that guides the lifting rod 34 is fitted into the inner periphery of the distal end portion of the insertion shaft 33, and a bush 37 that guides the cup-like body 38 is fitted into the inner periphery of the receiving plate 36. .

  The cup-shaped body 38 is sandwiched between a lower washer 43 fitted over the stepped portion of the elevating rod 34 and a first mounting member 44 mounted on the upper surface of the cup-shaped body 38. Further, on the first mounting member 44, a second mounting member 45, an upper washer 46, and double nuts 47 and 48 for fixing them in place are mounted. Here, the contact surface between the first mounting member 44 and the second mounting member 45 is formed in a spherical shape, and a so-called spherical seat 49 centering on the center point O ′ is formed.

  In particular, in the present embodiment, there is a gap (hereinafter referred to as a restriction gap) between the large-diameter portion 33d of the insertion shaft body 33 and the inner surface of the cylindrical portion 38a of the cup-like body 38 as a lateral movement restricting member. The lateral movement restriction tightening device 20 is different. That is, as shown in FIGS. 6, 7, and 9 (a), in a state where the insertion shaft body 33 is inserted into the cup-shaped body 38, at the place where each lateral movement restricting tightening device 20 is provided. When the vehicle body frame 5 side moves relative to the tank 3 side by the amount of the restriction gap, these facing portions are in contact with each other and are restricted from moving laterally. Accordingly, the restriction gap is preferably as small as possible so long as it does not hinder, and empirically, it is desirable to set it to 0.5 mm or less, for example. However, as described above, considering the deformation due to thermal expansion, twisting of the vehicle body frame 5 and the like, if the restriction gaps in the lateral movement restriction tightening devices 20 are the same, a relatively large gap is defined as the restriction gap. Since it must be set, the distance range in which the tank 3 swings is increased by the gap. In this case, since the tank 3 swings, there is a high possibility that the tank 3, the vehicle body frame 5, the load cell 7, and the like will be worn, and an abnormal noise generated by a collision (contact) when rattling is large. There is a bug that becomes.

  In order to cope with this, in the present embodiment, the restriction gap is made as small as possible, and it is possible to cope with deformation due to thermal expansion, torsion of the vehicle body frame 5, or the like. That is, regarding the clearance for regulation in one lateral movement regulating tightening device 20 (the lateral movement regulating tightening device 20 serving as a reference, in this embodiment, for example, the lateral movement regulating tightening device 20A on the rear right side) A gap corresponding to the amount of deformation caused by twisting due to unevenness at the installation location of the vehicle, and the other lateral movement restricting tightening devices 20B, 20C, 20D are caused due to twisting due to unevenness at the location of the vehicle. The difference in thermal expansion coefficient depending on the distance and direction of the insertion shaft body 33 of the lateral movement restricting tightening devices 20B, 20C and 20D from the insertion shaft body 33 of the first lateral movement restricting tightening device 20A It is the dimension which added the deformation amount resulting from.

  As a specific example, as described above, the first lateral movement restriction tightening device 20A serving as a reference provided on the rear right side, the second lateral movement restriction tightening device 20B provided on the rear left side, and the front right side Consider a case where a third lateral movement restricting tightening device 20C provided on the left side and a fourth lateral movement restricting tightening device 20D provided on the left side of the front part are provided, and the following conditions are satisfied.

First condition: The maximum temperature difference between the vehicle body frame 5 and the tank 3 is 20 ° C.
Second condition: The maximum deformation angle α (see FIG. 10) of the vehicle body frame 5 due to local torsion of the vehicle body due to the unevenness of the installation location is 0.2 °.

The displacement dimension due to the temperature difference (20 ° C.) and the difference in thermal expansion coefficient (11 × 10 ⁻⁶ ) between the vehicle body frame 5 and the tank 3 at the location where the position is regulated by each lateral movement regulating tightening device 20 is
Front-back direction: 2450 × 11 × 10 ⁻⁶ × 20 = 0.54 mm
Left-right direction: 990 × 11 × 10 ⁻⁶ × 20 = 0.22 mm
Here, 2450 (mm) is the distance between the first and second lateral movement restriction tightening devices 20A and 20B and the third and fourth lateral movement restriction tightening devices 20C and 20D in the front-rear direction. (Mm) is a separation dimension in the left-right direction between the first and third lateral movement restriction tightening devices 20A and 20C and the second and fourth lateral movement restriction tightening devices 20B and 20D.

  Further, as shown in FIG. 10, when the body frame 5 is twisted about the upper surface end H thereof and the deformation angle α becomes 0.2 °, the thickness of the insertion shaft 33 of the lateral movement restricting tightening device 20 is increased. The amount of deformation of the upper end J of the diameter portion 33d is 110 × sin 0.2 ° = 0.38 mm, assuming that the vertical dimension L in the meantime is 110 (mm).

  Therefore, the restriction gap a between the hole 38b formed in the inner surface of the cylindrical portion 38a of the first lateral movement restriction tightening device 20A serving as the reference portion and the large diameter portion 33d of the insertion shaft body 33 is A constant clearance of 0.5 mm in the radial direction is provided with a margin more than the maximum deformation amount of 0.38 mm due to the twist. That is, as schematically shown in FIG. 11, both the large-diameter portion 33d of the insertion shaft body 33 and the inner peripheral surface of the cylindrical portion 38a of the cup-shaped body 38 have a circular shape in cross section, Also with respect to the direction, the regulation gap a is 0.5 mm with respect to the radial direction.

  On the other hand, the hole 38b formed on the inner surface of the cylindrical portion 38a of the second lateral movement restricting tightening device 20B provided on the left side of the rear portion located on the left side with respect to the reference portion and the large diameter portion of the insertion shaft 33 In addition to the deformation due to the torsion, the regulating clearance between the first lateral movement regulating and tightening device 20A and the insertion shaft body 33 of the second lateral movement regulating and tightening device 20B is a distance from the insertion shaft 33 of the second lateral movement regulating and fastening device 20B. According to the direction, the dimension is determined by adding the amount of deformation due to the difference in thermal expansion coefficient. Therefore, as simply shown in FIG. 11, the front-rear direction is located at the same position as the first lateral movement restricting tightening device 20A, and therefore the front-rear restricting gap is the same as that of the first lateral movement restricting tightening device 20A. Similarly, a constant clearance a of 0.5 mm in the radial direction is provided with a margin more than the maximum deformation amount of 0.38 mm due to the twist. On the other hand, in the left-right direction, since it is on the left side of the first lateral movement regulating tightening device 20A, the maximum deformation amount of 0.38 mm due to the torsion and the maximum deformation amount in the left-right direction due to the difference in the coefficient of thermal expansion of 0. The dimension regulating gap b including 22 mm (0.38 mm + 0.22 mm = 0.6 mm) is set to be equal to or greater than (for example, this value is set to 0.75 mm with a slight margin). That is, in the second lateral movement restricting tightening device 20B, the large-diameter portion 33d of the insertion shaft body 33 has a perfectly circular cross section, while the inner peripheral surface of the cylindrical portion 38a of the cup-shaped body 38 can form the gap. Such a long elliptical shape (b> a) is used.

  Further, a hole 38b formed on the inner surface of the cylindrical portion 38a of the third lateral movement restricting tightening device 20C provided on the right side of the front portion positioned in front of the reference portion and a large diameter portion of the insertion shaft 33 In addition to the deformation due to the torsion, the regulation gap b between the first lateral movement regulating and tightening device 20A and the third lateral movement regulating and tightening device 20C can be changed from the insertion shaft 33 to the third lateral movement regulating and fastening device 20C. The dimension is the dimension plus the amount of deformation due to the difference in coefficient of thermal expansion according to the distance and direction. Accordingly, as simply shown in FIG. 11, the front-rear direction is on the front side of the first lateral movement restricting tightening device 20A, so the maximum deformation amount of 0.54 mm due to the difference in thermal expansion coefficient is It is set to a dimension regulating gap c (0.38 mm + 0.54 mm = 0.92 mm) added to the maximum deformation amount of 0.38 mm due to torsion (for example, 2.0 mm with a slight allowance for this value). Since the left and right direction is at the same position as the first lateral movement restricting tightening device 20A, the left and right restricting gap is the same as the first lateral movement restricting tightening device 20A, with a maximum deformation amount of 0.38 mm due to the twist. More than that, a certain clearance a of 0.5 mm in the radial direction is provided with some allowance. That is, in the third lateral movement restricting tightening device 20C, the large-diameter portion 33d of the insertion shaft body 33 has a perfect circular cross section, while the inner peripheral surface of the cylindrical portion 38a of the cup-shaped body 38 can form the gap. Such a long elliptical shape (c> a) is assumed.

  Further, the hole 38b formed on the inner surface of the cylindrical portion 38a of the fourth lateral movement restricting tightening device 20D provided on the left side of the reference portion and on the left side of the front portion and the thickness of the insertion shaft 33 are provided. In addition to the deformation due to the torsion, the restriction gap between the diameter portion 33d and the insertion shaft body 33 of the fourth lateral movement restriction tightening device 20B from the insertion shaft body 33 of the first lateral movement restriction tightening device 20B. The dimension is determined by adding the amount of deformation caused by the difference in thermal expansion coefficient according to the distance and direction. That is, as shown in a simplified manner in FIG. 11, since it is on the left side and the front side of the first lateral movement restricting tightening device 20A in the front-rear direction and the left-right direction, the maximum deformation in the left-right direction due to the difference in thermal expansion coefficient The amount of 0.22 mm and the maximum deformation amount of 0.54 mm in the front-rear direction are equal to or larger than the dimension regulating gap d (0.38 mm + 0.22 mm + 0.54 mm = 1.14 mm) added to the maximum deformation amount of 0.38 mm due to the twist. (For example, this value is given a margin of 2.0 mm). That is, in the fourth lateral movement restricting tightening device 20B, the large-diameter portion 33d of the insertion shaft body 33 has a perfectly circular cross section, while the inner peripheral surface of the tubular portion 38a of the cup-shaped body 38 has a large gap. Such a circular cross section (d> c> b> a) is assumed.

  In the above configuration, as shown in FIGS. 3 to 5, the tank 3 is always supported by the load cell fixed to the vehicle body frame 5 via the rocker pins 10 and the rocker pin receivers 11.

  When the weight of the tank 3 is not measured, such as when the vehicle is running, the retracting rod 22a of the hydraulic cylinder 22 is at the most retracted position as shown in FIGS. 6, 7, and 9A. Has been moved to the end. Along with this, the elevating block 30 is moved to the lower position through the link mechanism including the first and second drive links 23 and 25, the first and second driven links 28 and 32, and the elevating block 30 A cup-like body 38 is formed on the upper portion of a cup-like body 38 through a rod 34, and a cup-like portion 38 c is brought into contact with a receiving plate 36 fixed to the tank-side bracket 35 from above, and a cylinder of the cup-like body 38. The shape portion 38a is positioned so as to substantially cover the large diameter portion 33d of the insertion shaft body 33 from the outer periphery (a state in which the lateral movement is restricted and tightened).

  Accordingly, the tank 3 side is regulated so as not to move upward by the bowl-shaped portion 38 c of the cup-shaped body 38. Further, when a force is applied to the body frame 5 to move the tank 3 upward, the force to push the cup-shaped body 38, the lifting rod 34, and the lifting block 30 relatively upward is applied. Since this acts, a force acts to swing the second driven link 32 in the direction f (see FIG. 6). However, since the retracting rod 22a of the hydraulic cylinder 22 is in the most retracted position and cannot move further downward, the second connecting pin 27 connected to the first driven link 28 does not move downward. As a result, the first driven link 28 does not move in the e direction, the cup-like body 38 does not move upward, and the tank 3 can be reliably prevented from moving upward. That is, as shown in FIG. 6, the second driven link 32 connects the line L1 (that is, the second driven link 32 and the first driven link 32 to the fourth connecting pin 40 which is the rotation center of the second driven link 32). Since the lower part of the driven link 28 is in a straight line), the cup-shaped body is shifted to the side (right side in the drawing of FIG. 8) away from the retracting rod 22a side of the hydraulic cylinder 22. 38 does not move further downward, and the tank 3 side is reliably prevented from floating upward.

  Further, since the cylindrical portion 38 a of the cup-shaped body 38 is disposed so as to substantially cover the large-diameter portion 33 d of the insertion shaft body 33 from the outer periphery, the large-diameter portion 33 d of the insertion shaft body 33 is formed of the cup-shaped body 38. It can move in the lateral direction only within the range of the dimension regulating gap that contacts the inner surface (hole 38b) of the cylindrical portion 38a, and the tank 3 side can move with respect to the vehicle body frame 5. Be regulated.

  Moreover, the restriction gap between the hole 38b formed on the inner surface of the cylindrical portion 38a of the cup-shaped body 38 of each lateral movement restricting tightening device 20 and the large-diameter portion 33d of the insertion shaft body 33 is widened. In addition, they are not formed to have the same size and the same circular shape (for example, the same shape as the restriction gap of the fourth lateral movement restricting tightening device 20D on the left side of the front part), but the first first reference transverse In the movement restricting tightening device 20A and the second lateral movement restricting tightening device 20B on the left side, the size of the restricting gap a is extremely small in the front-rear direction. The position of the tank 3 relative to the frame 5 is relatively restricted with respect to the front-rear direction. Further, in the first lateral movement restricting tightening device 20A serving as a reference and the third lateral movement restricting tightening device 20C on the front side, the size of the restriction gap a is extremely small in the left-right direction. Within the range of the clearance a, the position of the tank 3 side relative to the vehicle body frame 5 is relatively restricted in the left-right direction. That is, when the tank 3 side swings in the front-rear direction relative to the vehicle body frame 5, the cup-like body 38 and the insertion shaft body of the first and second lateral movement regulating tightening devices 20A and 20B on the rear side. 33 and the force is received. Therefore, for example, the first and second lateral movement restricting tightening devices 20A and 20B have a surface pressure strength that can withstand a load in the front-rear direction (about 80% of the total total weight of the tank 3 and the stored item). By designing the strength of the cup-shaped body 38 and the insertion shaft 33, it is possible to withstand long-term use. Further, when the tank 3 side swings in the left-right direction relative to the vehicle body frame 5, the cup-shaped body 38 and the insertion shaft body 33 of the first and third lateral movement restriction tightening devices 20 </ b> A and 20 </ b> C on the right side. Power can be received. Therefore, for example, the first and third lateral movement restricting tightening devices 20A and 20C have a surface pressure strength that can withstand a load in the left-right direction (about 60% of the total total weight of the tank 3 and the contents). By designing the strength of the cup-shaped body 38 and the insertion shaft 33, it is possible to withstand long-term use.

  As a result, the gap between the insertion shaft body 33 and the cup-shaped body 38 serving as the lateral movement restricting member can be minimized (for example, within 0.5 mm), and the tank 3 can be moved relative to the vehicle body frame 5 during traveling. Shaking can be minimized. Therefore, the noise generated by the collision (contact) at the time of rattling due to the relative swing of the tank 3 with respect to the vehicle body frame 5 can be minimized. In addition, even when the vehicle is stopped at a place with large unevenness, a gap is formed so that the twist caused by the unevenness can be absorbed within the predetermined unevenness as long as it is within a certain unevenness range. Therefore, it is possible to prevent the large-diameter portion 33d of the insertion shaft body 33 from coming into contact with the inner peripheral surface of the hole portion 38b of the cup-shaped body 38 due to the torsion caused by the unevenness, and an excessive force is prevented from acting. The movement of the tank 3 in the lateral direction can be well controlled. Further, even when there is a temperature difference between the tank 3 and the vehicle body frame 5, the gap is formed so as to cope with the deformation due to the temperature difference. The large-diameter portion 33d is prevented from coming into contact with the inner peripheral surface of the hole 38b of the cup-shaped body 38 and an excessive force acting.

  Further, when measuring the weight of the tank 3, as shown in FIG. 8 and FIG. 9B, the retracting rod 22a of the hydraulic cylinder 22 is moved to the uppermost end, and is moved to the upper end. Along with this, the elevating block 30 is moved to the upper position via the link mechanism including the first and second drive links 23 and 25, the first and second driven links 28 and 32, and the elevating block 30 is also moved up and down. The cup-like body 38 is positioned via the rod 34 so that the hook-like portion 38c formed on the upper part thereof is lifted upward with respect to the receiving plate 36 fixed to the tank side bracket 35, and the cup The cylindrical portion 38a of the cylindrical body 38 is positioned so as to be separated from the large-diameter portion 33d of the insertion shaft body 33 (a state in which the lateral movement restriction and tightening are released).

  As a result, the hook-shaped portion 38c of the cup-shaped body 38 is separated upward from the receiving plate 36, so that no load is applied to the vehicle body frame 5 from the tank 3 side through this portion. In addition, since the cylindrical portion 38a of the cup-shaped body 38 is substantially separated from the large-diameter portion 33d of the insertion shaft body 33, naturally, the cup-shaped body 38 and the insertion shaft body 33 are not in contact with each other. Therefore, no force acts on the insertion shaft 33 in the lateral direction from the cup-shaped body 38 side.

  Thereby, only the load cell 7 of the measuring unit 15 receives a load from the tank 3 side, and the load cell 7 can measure the weight of the tank 3 side very well.

  In addition, if the installation location of the vehicle is on a complete horizontal surface without unevenness at the time of weighing (strictly speaking, the surface formed at the ground contact portion of the front wheel 16 or the rear wheel 17 is a complete horizontal surface without unevenness. 12), as shown in FIG. 12A, the rocker pin 10 and the rocker pin receiver 11 are positioned directly above the load receiving projection 7a of the load cell 7, and only the downward gravity acts on the load cell 7. As shown in FIG. 12 (b), the rocker pin 10 and the rocker pin receiver 11 can be mounted even when the installation location of the vehicle is inclined (inclination angle β) or uneven. Due to the self-aligning action, the rocker pin 10 is automatically tilted, and only the downward gravity acts on the load cell 7, so that it can be measured well and highly accurate weighing can be performed. Also, there is a temporary temperature difference between the tank 3 side and the vehicle body frame 5 side, and the position of the rocker pin receiver 11 in the lateral direction slightly deviates from the load cell 7 in some weighing units 15. However, as shown in FIG. 12 (c), the rocker pin 10 is automatically inclined by the angle γ according to the amount of deviation, and as a result, only the downward gravity acts on the load cell 7, and it is good. Weighing can be performed with high accuracy. That is, when the tightening action of the lateral movement restricting tightening device 20 and the lateral movement restricting state are released during weighing, the load from the tank 3 side is caused by the self-aligning action of the rocker pin 10 and the rocker pin receiver 11. On the other hand, only gravity acts, that is, in a stable state, so that measurement can be performed with extremely high accuracy.

In addition, since an elevating device for elevating the tank 3 or the like is not necessary, the manufacturing cost can be reduced and the structure can be simplified.
When the front wheel 16 and the rear wheel 17 of the vehicle separately fall from the flat road into the recess when the vehicle is running, the load multiple is about 2.5, and the tank 3 and the contents of the tank 3 are generally 2. Since only five times the weight acts, the load cell 7 is selected with a rated load that allows for a safety factor of 2.5 times the working load.

  Further, even when a large load is instantaneously applied downward from the tank 3, such a load is absorbed by the disc spring 14 provided below the tank side mounting member 12, and it is minimally applied directly to the load cell 7. To the limit. Further, even when an excessive load is applied from the tank 3 to the vehicle body frame 5 side, in this case, the overload prevention bolt 39 attached to the tank side bracket 35 side contacts the flange portion 33f of the insertion shaft body 33. This force is transmitted to the vehicle body frame 5 through the overload prevention bolt 39. This also prevents an excessive force from acting on the load cell 7, protects the load cell 7, and improves reliability.

  When the weighing operation as described above is finished, the lateral movement restriction tightening device 20 is switched from the tightening release state and the lateral movement restriction release state to the tightening state and the lateral movement restriction state in preparation for traveling of the vehicle. In this case, the tightening state and the lateral movement restricted state are set as follows.

  First, the insertion shaft body 33 of the reference first lateral movement restricting tightening device 20A is inserted into the hole 38b of the cup-shaped body 38 as a lateral movement restricting member. That is, as shown in FIG. 8 and FIG. 9B, the retracting rod 22a of the hydraulic cylinder 22 is gradually retracted downward from the position where it protrudes upward, via the lifting block 30, the lifting rod 34, and the like. The cup-shaped body 38 is lowered. At this time, in some cases, the guide member 41 disposed at the lower end of the cup-shaped body 38 may come into contact with the insertion shaft body 33, but the tapered surface of the guide member 41 is the tapered portion of the insertion shaft body 33. The large-diameter portion 33d of the insertion shaft 33 is guided into the hole 38b of the cup-shaped body 38 while being guided by these portions while being in sliding contact with the 33c.

  Next, similarly, the insertion shaft body 33 of the second lateral movement restricting tightening device 20B located on the left side of the first lateral movement restricting tightening device 20A is inserted into the hole 38b of the cup-shaped body 38, and thereafter The insertion shaft body 33 of the third lateral movement regulating tightening device 20C located on the front side of the first lateral movement regulating tightening device 20A is inserted into the hole 38b of the cup-shaped body 38, and finally the first lateral movement The insertion shaft body 33 of the fourth lateral movement restricting tightening device 20D located on the left side and the front side of the restricting tightening device 20A is inserted into the hole 38b of the cup-shaped body 38.

  As described above, first, the insertion shaft body 33 of the first lateral movement restriction tightening device 20A that is the reference and has the smallest restriction gap is inserted into the hole 38b of the cup-shaped body 38 as the lateral movement restriction member. Subsequently, the insertion shaft bodies 33 of the second lateral movement restricting tightening device 20D to the fourth lateral movement restricting tightening device 20D and the hole 38b of the cup-shaped body 38 are pre-positioned at corresponding relative positions. These insertion operations can be performed well and relatively quickly. When it is necessary to perform this operation more quickly, first, the rear side, that is, the insertion shaft body 33 of the first and second lateral movement regulating tightening devices 20A and 20B is used as the lateral movement regulating member. After the insertion into the hole 38b of the cup-shaped body 38 at the same time, the insertion shaft 33 of the front side, that is, the third and fourth lateral movement regulating tightening devices 20C, 20D is used as the lateral movement regulating member of the cup-shaped body 38. You may insert in the hole 38b simultaneously.

  As the insertion shaft body 33, it is preferable to use a high carbon steel that has been heat-treated to give toughness and increased hardness. Further, regarding the cup-shaped body 38, as the guide member 41 fitted into the lower end portion of the cylindrical portion 38a, a wear-resistant copper alloy bearing material having good slipperiness and excellent wear resistance is used. The guide member 41 may be press-fitted into the lower end portion of the tubular portion 38a of the cup-shaped body 38. In addition, it is preferable to use the same material as the insertion shaft body 33 in which the other parts of the cup-shaped body 38 are heat-treated high carbon steel to give toughness and have increased hardness, and the cup-shaped body 38 is lowered. In doing so, the tapered portion 33c of the insertion shaft 33 and the tapered surface of the guide member 41 are configured so as not to cause so-called bending. By selecting such a material, it is inserted into the inner wall surface of the tubular portion 38a of the cup-shaped body 38 when the vehicle travels, that is, when the lateral movement restricting tightening device 20 is in the tightening state and the lateral movement restricting state. Even when it collides with the large-diameter portion 33d of the shaft body 33, the surfaces of each other are hardly worn, and the regulation gap is maintained in a good state. In addition, you may replace | exchange the guide member 41 fitted in the lower end part of the cylindrical part 38a of the cup-shaped body 38 as needed.

  Next, a second embodiment of the present invention will be described with reference to FIGS. As shown in these drawings, this embodiment has a configuration substantially similar to that of the first embodiment. However, instead of the overload prevention bolt 39, the embodiment is arranged on the vehicle body frame 5 side when tightening the lateral movement restriction. An abutting bolt 61 that abuts is used. In addition, a plurality of disc springs 62 that press the cup-shaped body 38 downward at the time of tightening are used, and disc springs interposed between the rocker pin receiver 11 and the tank side mounting member 12 above the load cell 7. The number of 14 is increased to 3 sheets, for example. The disc spring 62 that presses the cup-shaped body 38 downward is interposed between a mounting plate 63 attached to the upper end of the elevating rod 34 and the cup-shaped body 38 via a pressing plate 64. . In this embodiment, the size of the hole 38b formed in the inner surface of the cylindrical portion 38a in the cup-like body 38 of each lateral movement restricting tightening device 20 is equal to the fourth lateral movement restricting tightening device 20D. And the same gap (wider gap).

  In the first embodiment, unless the overload acts from the tank 3 side, the tip of the overload prevention bolt 39 is attached to the vehicle body side bracket 21 even at the time of lateral movement restricting tightening. The position of the flange portion 33f is adjusted so as to have a predetermined minute gap. The load cell 7 was protected by contacting the flange portion 33f of the insertion shaft 33 only when an overload was applied from the tank 3 side.

  Instead, in the second embodiment, as shown in FIG. 13, the shaft portion of the contact bolt 61 attached to the receiving plate 36 has a flange of the insertion shaft body 33 at the time of lateral movement restricting tightening. The portion 33f (in this embodiment, as shown in FIG. 13, the flange portion 33f of the insertion shaft 33 has a portion that faces the tip of the contact bolt 61 extending radially outward). The position is adjusted so as to abut. That is, the overload prevention bolt 39 and the contact bolt 61 are constituted by the same bolt, and differ only in the relative position with the flange portion 33 f of the insertion shaft body 33.

  As shown in FIGS. 16 and 17, at the time of measurement, the retractable rod 22 a of the hydraulic cylinder 22 is set to a position where it protrudes most upward, and the elevating block 30 and the cup-shaped body 38 are set to an upper position. Thus, the cylindrical portion 38a of the cup-shaped body 38 is separated from the large-diameter portion 33d of the insertion shaft 33, and each lateral movement restricting tightening device 20 is released from the tightening state and the lateral movement restricting state. Thus, it is weighed well by the load cell 7. In this state, since the pressing force to the tank 3 side by the cup-like body 38 by each lateral movement restricting tightening device 20 is not acting, the rocker pin receiver 11 and the tank above the load cell 7 as shown in FIG. The disc spring 14 interposed between the side mounting member 12 has a relatively large inclination angle, and the urging force of the disc spring 14 slightly lifts the tank 3 side. As a result, FIG. As shown, the lower end portion of the contact bolt 61 is separated from the flange portion 33 f of the insertion shaft body 33.

  On the other hand, when the vehicle is not running, such as when traveling, the retractable rod 22a of the hydraulic cylinder 22 is retracted, and the elevating block 30 is set to the upper position so that the dish provided on the cup-shaped body 38 is provided. The cup-shaped body 38 is pushed down against the biasing force of the spring 62. Further, the tank 3 side is pushed down through the bowl-shaped portion 38c of the cup-shaped body 38, the receiving plate 36, the tank side bracket 35, and the like, and accordingly, the rocker pin receiver 11 and the tank side mounting member 12 above the load cell 7. As a result, the lower end portion of the contact bolt 61 comes into contact with the flange portion 33f of the insertion shaft body 33, and the contact portion has a larger friction. A force is generated, and the lateral restriction is increased by the frictional force between the contact bolt 61 and the flange portion 33f. At the same time, the biasing force of the disc spring 14 causes the flange portion 33f (that is, the vehicle body frame 5 side) to move. On the other hand, the contact bolt 61 (that is, the tank 3 side) can be regulated with a strong force in both the direction in which the vertical gap is opened and the direction in which the gap is narrowed.

  Therefore, unless a large lateral load is applied during traveling, the frictional force at the contact portion between the lower end portion of the contact bolt 61 and the flange portion 33f of the insertion shaft body 33 is applied to the vehicle frame 5 side. As a result, the tank 3 does not move at all, and as a result, even when the vehicle is running, the backlash of the tank 3 with respect to the vehicle body frame 5 does not normally occur, and the noise generated by the collision (contact) at the time of backlash does not occur.

  Even when a lateral load or the like exceeding the frictional force at the contact portion between the lower end portion of the contact bolt 61 and the flange portion 33f of the insertion shaft body 33 is applied during traveling, the insertion shaft body 33 is thicker. The position of the diameter portion 33d is restricted by contacting the inner peripheral surface of the hole 38b of the cup-shaped body 38, and the movement of the tank 3 in the lateral direction can be satisfactorily prevented.

  Moreover, in this embodiment, the size of the hole 38b formed in the inner surface of the cylindrical part 38a in the cup-like body 38 of each lateral movement restricting tightening device 20 is the same with a wide gap. Therefore, after the measurement, the lateral movement restriction from the first lateral movement restriction fastening device 20A to the fourth lateral movement restriction fastening device 20D is also performed when returning from the state in which the lateral movement restriction fastening is released to the lateral movement restriction fastening state. The hole 38b of the cup-shaped body 38 is not required even if the tightening operation is sequentially shifted, that is, even if the retracting rods 22a of the hydraulic cylinders 22 of all the lateral movement restricting tightening devices 20 are simultaneously projected. Thus, the insertion shaft body 33 can be easily inserted and centered, and the work efficiency is improved.

  In this embodiment, the case where the contact bolt 61 is disposed so as to contact the insertion shaft body 33 fixed to the vehicle body frame 5 side from the tank 3 side has been described. However, the present invention is not limited to this. Instead of this, for example, the contact bolt 61 is arranged so as to extend from the vehicle body side bracket 21 side toward the tank side bracket 35, and the contact bolt 61 contacts the tank side bracket 35 when tightening the lateral movement restriction. You may comprise so that a lateral movement may be controlled in contact.

  Further, a third embodiment of the present invention will be described with reference to FIGS. As shown in these drawings, in this embodiment, the configuration is almost the same as that of the second embodiment, but the taper spreads downward on the entire inner periphery of the cylindrical portion 38a of the cup-shaped body 38. A tapered member 71 having a surface 71a is press-fitted, and an upper portion of the outer peripheral surface of the insertion shaft body 33 that is inserted into and removed from the tapered member 71 has a tapered surface 33g shape.

  As shown in FIG. 19, in a state where the lateral movement restricting tightening of each lateral movement restricting tightening device 20 is released, the taper member 71 press-fitted into the cup-shaped body 38 and the tapered surface 33 g of the insertion shaft 33 are formed. The gap between them is set to be somewhat wide (for example, about 3 mm).

  In this configuration, when the vehicle is not running, such as when traveling, the retractable rod 22a of the hydraulic cylinder 22 is retracted, and the elevating block 30 is set to the upper position to push down the cup-shaped body 38. As described above, after the lower end portion of the contact bolt 61 (see FIG. 13) contacts the flange portion 33 f of the insertion shaft body 33, the cup-shaped body 38 is further pushed down to taper the insertion shaft body 33. The surface 33g is pressed against the taper member 71 of the cup-shaped body 38. As a result, the cup-shaped body 38 can be firmly pressed against the insertion shaft body 33 without a gap by the pressing force of the disc spring 62. As a result, the backlash of the tank 3 with respect to the vehicle body frame 5 can be achieved. No noise is generated, and no abnormal noise is generated due to a collision (contact) when rattling.

  As described above, in the third embodiment, the taper surface 33g of the insertion shaft body 33 and the taper member 71 of the cup-shaped body 38 are pressed against each other at the time of the lateral movement restricting tightening so that the shaft centers thereof coincide with each other. Since it is a forced structure and does not have a configuration that absorbs torsion caused by unevenness of the ground contact surface of the vehicle or temperature change, it is preferable to apply only to the first reference hole in the first embodiment. However, when the influence of twisting or temperature expansion is small, even if this third embodiment is applied to all lateral movement regulating devices, the lateral movement regulating tightening device is released at the time of weighing. It can measure well without being affected by lateral load.

  In the above-described embodiment, the load cell 7 (the weighing unit 15) and the lateral movement restricting tightening device 20 are respectively mounted on the vehicle body frame 5 (including the cross member 13 portion) as shown in FIGS. The case where the tank 3 is mounted at four locations on the front, rear, left and right sides (that is, two locations on the front side and two locations on the rear side) is described. As described above, in the first to third embodiments, the weighing unit 15 including the load cell 7 and the lateral movement restricting tightening device 20 are arranged to form a pair in plan view (see FIG. 2). Thus, when the tightening state is released, the tank 3 side does not move relative to the vehicle body frame 5 side even in the position of the load cell 7 only within the lateral movement restriction range of the lateral movement restriction tightening device 20, and stable. There is an advantage that can be weighed in the state. In addition, when the front and rear length of the tank 3 is extremely long and the weight is relatively large, each of the load cell 7 (the weighing unit 15) and the lateral movement restricting tightening device 20 is also provided at the intermediate portion in the front and rear direction of the body frame 5. May be provided.

However, the arrangement of the load cell 7 (metering unit 15) and the lateral movement restricting tightening device 20 is not limited to these.
For example, as shown in FIGS. 21 and 22, instead of providing two load cells 7 (measuring portions 15) on the front side, another cross is provided at the front side of the cross member 13 that connects the front side parts of the body frame 5. A member 13 is provided and a load cell 7 (measuring unit 15) is provided at a substantially central position of the cross member 13. As a whole, three load cells 7 (measuring units 15) are provided (one on the front side and two on the rear side). In addition, four lateral movement restricting tightening devices 20 are arranged, or, instead of providing two lateral movement restricting tightening devices 20 on the front side as shown in FIGS. A lateral movement restricting tightening device 20 is provided only at a substantially central portion of the cross member 13 that connects the front portions, and as a whole, there are three lateral movement restricting tightening devices 20 (one on the front side and two on the rear side), Load cell 7 Weighing unit 15) may be or so as to four arranged. In this case, as the lateral movement restricting tightening device 20, it is preferable to adopt the structure according to the second embodiment shown in FIGS. 13 to 18, but it is not limited to this.

  The configuration shown in FIGS. 21 and 22 (fourth embodiment) and the configuration shown in FIGS. 23 and 24 (fifth embodiment) are adopted (that is, the weighing unit 15 including the load cell 7). 1 and 2, the load cell 7 (metering unit 15) and the lateral movement restricting tightening device 20 are arranged in the front, rear, left and right directions 4 and 4, respectively. Since the number of load cells 7 (metering unit 15) or lateral movement restricting tightening device 20 can be reduced by one compared to a paired arrangement such as each part, the manufacturing cost is reduced accordingly. Can be achieved.

  25 and 26 are an overall side view showing an example of a garbage truck equipped with an on-vehicle weighing device according to a sixth embodiment of the present invention, and a schematic plan view of the garbage truck body (garbage storage). The tank is schematically shown in phantom). Since the dust storage tank 81 of the garbage truck 80 has a dust input chamber 82 called a so-called packer having a pushing plate, a rotating plate and the like at the rear end thereof, the center of gravity G as the dust storage tank 81 is located at the rear side ( It is behind the rear wheel 17 of the vehicle. Correspondingly, in this embodiment, as shown in FIG. 25 and FIG. 26, the lateral movement restricting tightening device 20 is located on the left and right sides that are located near the lower side of the center of gravity G of the dust container tank 81 in a side view. It is arranged only in two places. In this case, by providing two lateral movement restricting tightening devices 20 shown in FIG. 13, the lateral movement restricting tightening device 20 is restricted so as not to move in the vertical direction and the lateral direction (front and rear direction and vehicle width direction). Although not shown, a member that prevents the vehicle body frame 5 and the tank 3 from separating in the vertical direction is provided on the front side of the vehicle body frame 5 (for example, the vehicle body is attached to the weighing unit 15 having the load cell 7. A stopper or the like may be provided to restrict the tank 3 side from moving upward relative to the frame 5).

  When this configuration is adopted, as shown in FIGS. 1 and 2, the number of lateral movement restricting tightening devices 20 can be reduced by two as compared with the case where the lateral movement restricting tightening devices 20 are provided at four positions, front, rear, left and right. Therefore, the manufacturing cost can be further reduced. In addition, while the lateral movement restricting tightening device 20 is reduced by two, since these lateral movement restricting tightening devices 20 are disposed near the center of gravity G of the dust storage tank 81, the dust storage tank 81 is in a stable posture during tightening. In other words, there is an advantage that the dust container tank 81 can be stably held against the horizontal force of the front, rear, left and right even when the vehicle is traveling. Also in this case, it is preferable to adopt the structure according to the second embodiment shown in FIGS. 13 to 18 as the lateral movement restricting tightening device 20, but the structure is not limited to this. A structure in which the frictional force is increased by changing the contact surface portion of the contact portion to a member having a large friction coefficient may be employed so that the tightening force can be increased.

  27 and 28 are an overall side view showing an example of a tank truck equipped with an in-vehicle weighing device according to a seventh embodiment of the present invention, and a schematic plan view of the tank truck body (the tank is schematically shown). (Shown in phantom lines). In the tank lorry 90, the tank 91 is large and extremely long in the front-rear direction. Correspondingly, the body frame 5 is also elongated in the front-rear direction. In the on-vehicle weighing device of this embodiment, the load cell 7 (weighing unit 15) is arranged in the front, rear, left and right four, but the lateral movement restricting tightening device 20 includes the front side, the front side, the left side, and the four sides. The lateral movement restricting tightening device 20 and the rear lateral movement restricting tightening device 20 are located at an intermediate position, more specifically at a position immediately in front of the rear wheel 17, and two lateral movement restricting tightening devices 20 on the left and right sides (or (4 may be provided) are additionally provided.

  Here, in a vehicle loaded with this type of long tank 91, as in the case shown in FIG. 1 and FIG. 2, only four lateral movement restricting tightening devices 20 in the front, rear, left and right are provided. Assuming the case, the rear load cell 7 (measuring unit 15) and the lateral movement restricting tightening device 20 are usually installed behind the rear wheel 17, so that the support plate of the rear wheel 17 supporting the vehicle body frame 5 is used. A large bending moment is generated with respect to the spring portion. That is, the vehicle body frame 5 attempts to move downward using the support portion of the rear wheel 17 as a fulcrum, and similarly, the vehicle body frame 5 attempts to move downward (bend) near the front wheel 16 in the forward direction. As a result, two bending moments propagate to the intermediate position between the front wheel 16 and the rear wheel 17 in the vehicle body frame 5, and as a result, the vehicle body frame 5 bends upward at a location near the front side of the rear wheel 17. Since the vehicle travels in this state, vertical vibrations overlap the flexure at the intermediate position in the front-rear direction of the vehicle body frame 5 and swings up and down greatly, which may cause the driver to feel instability during travel.

  In order to deal with this, in the present embodiment, the lateral movement restricting tightening device 20 is added to the front and rear, right and left intermediate positions such as the position just in front of the rear wheel 17 in addition to the four front and rear and left and right positions (ie, a total of six Place). In this way, by disposing the lateral movement restricting tightening device 20 at the intermediate position in the front-rear direction and connecting the vehicle body frame 5 and the tank 91, the rigidity at the intermediate position of the vehicle body frame 5 is increased. As a result, there is no ups and downs at this point, and the driver does not feel instability even while driving. Note that the tightening force of the lateral movement restricting tightening device 20 in this case does not need to give a large frictional force, and the contact bolt 61 shown in FIG. 16 contacts the flange portion 33f of the insertion shaft body 33, so that the tank 91 And the vehicle body frame 5 need only be tightened so as to be integrated in the vertical direction. That is, the tightening force is small enough to hold the vertical movement so that the tank 91 and the vehicle body frame 5 are flush with each other. Therefore, the tightening force is smaller than that of the other four lateral movement restricting tightening devices 20, and is relatively small. Low-priced ones may be used, and these make it possible to reduce the manufacturing cost. Further, in order to increase the rigidity of the body frame 5 during tightening, a plurality of lateral movement restricting tightening devices 20 may be provided at intermediate positions in the front-rear direction of the body frame 5 (that is, a total of 8 or 10 positions). In this case, the lateral movement restriction function by the cup-shaped body 38 is not necessarily required.

  In any of the embodiments, if the lower limit detection switch 52 cannot detect that the elevating block 30 of all the lateral movement restricting tightening devices 20 is at the lower limit position, that is, the retracting rod 22a of the hydraulic cylinder 22 It is desirable to provide a lock device so that the vehicle cannot make a transmission unless it is lowered to the lower end and it can be confirmed that the lateral movement restricting tightening operation is operating reliably. Further, when the vehicle is stopped and the side brake is pulled and not operated, the lateral movement restriction tightening operation of the lateral movement restriction tightening device 20 cannot be released, thereby improving safety. Further, manual tightening is performed as a preventive measure when the lateral movement restricting tightening operation of the lateral movement restricting tightening device 20 is released from the state in which the lateral movement restricting tightening operation is canceled due to some failure. For example, a lifting bracket that can be raised and lowered and an insertion shaft are separately provided, and the tightening device may be configured to be able to run even when it is manually operated.

  Furthermore, a tilt sensor that can measure the tilt angle of the vehicle body may be provided in the vehicle so that the measurement error can be corrected based on the tilt angle. In addition, using a tilt sensor, when the tilt angle of the vehicle is greater than or equal to a predetermined angle, it is configured not to release the lateral movement restricting tightening operation or to perform a warning operation. Also good.

  Further, in the above-described embodiment, the case where the tightening device and the lateral movement restricting device are combined as one unit (lateral movement restricting tightening device) in any of the embodiments is described. The movement restriction effect including the movement restriction effect and the movement restriction effect in the horizontal direction by the lateral movement restriction device can be obtained with the lateral movement restriction tightening device which is the same unit, and the mutual position restriction between the container and the vehicle body frame can be favorably performed. There is. However, the present invention is not limited to this, and it is a matter of course that the tightening device and the lateral movement restricting device may be provided at different locations.

  Moreover, in the said embodiment, although the load cell 7 was fixed to the vehicle body frame 5 side, it is not restricted to this, You may fix the load cell 7 to the tank 3 side. In this case, a rocker pin 10 and a rocker pin receiver 11 having the same configuration may be interposed between the load cell 7 and the vehicle body frame 5 side.

  Further, the vehicle is not limited to a bulk lorry, a garbage truck, and a tank lorry, and can of course be applied to various vehicles including containers such as a tank for storing items therein, such as a vacuum vehicle.

1 is an overall side view of a bulk lorry provided with an in-vehicle weighing device according to an embodiment of the present invention. FIG. 2 is a schematic plan view of the bulk lorry body (a tank is schematically indicated by a virtual line). It is a rough front sectional view of a tank and a measurement part of an in-vehicle weighing device concerning an embodiment of the invention. It is a rough front sectional view of a tank and a measurement part of the in-vehicle weighing device. (A) And (b) is the schematic plan view and side view of a measurement part of the same vehicle-mounted weighing apparatus. It is a schematic front sectional view (at the time of lateral movement restriction tightening) of the lateral movement restriction tightening device of the vehicle-mounted weighing device. (A) And (b) is the schematic top view and side view (at the time of lateral movement regulation fastening) of the lateral movement regulation fastening apparatus of the vehicle-mounted measuring apparatus. It is a schematic front sectional view (at the time of lateral movement restriction tightening release) of the lateral movement restriction tightening device of the in-vehicle weighing device. (A) And (b) is principal part front sectional drawing at the time of lateral movement regulation tightening in the lateral movement regulation tightening apparatus of the same vehicle-mounted measuring apparatus, and at the time of lateral movement regulation tightening cancellation | release. It is a front sectional view (at the time of lateral movement regulation tightening) which shows roughly the twist state of the lateral movement regulation fastening device of the same in-vehicle weighing device. It is a figure which shows simply the clearance gap for regulation between the hole of the cylindrical part of each lateral movement control | tightening tightening apparatus in the same vehicle-mounted weighing | measuring apparatus, and the large diameter part of an insertion shaft body. (A)-(c) is a front view for demonstrating the motion of a load cell, a rocker pin, and a rocker pin receptacle, respectively. It is a schematic side view (at the time of lateral movement regulation fastening) of the lateral movement regulation fastening apparatus in the vehicle-mounted weighing | measuring apparatus which concerns on the 2nd Embodiment of this invention. It is a schematic front view (at the time of lateral movement restriction | limiting tightening) of the lateral movement restriction | limiting tightening apparatus in the vehicle-mounted measuring device which concerns on the same embodiment. It is a schematic side view (at the time of lateral movement regulation tightening) of the measurement part in the vehicle-mounted measuring device which concerns on the embodiment. It is a schematic side view (at the time of lateral movement restriction | limiting tightening cancellation | release) of the lateral movement restriction | limiting tightening apparatus in the vehicle-mounted measuring apparatus which concerns on the 2nd Embodiment of this invention. FIG. 3 is a schematic front view of the lateral movement restriction tightening device in the in-vehicle weighing device according to the embodiment (at the time of lateral movement restriction tightening release). It is a schematic side view of the measurement part in the vehicle-mounted measurement apparatus which concerns on the embodiment (at the time of a lateral movement restriction | limiting tightening cancellation | release). It is a schematic front sectional view (at the time of lateral movement restriction tightening) of the lateral movement restriction tightening device in the in-vehicle weighing device according to the third embodiment of the present invention. It is a schematic front sectional view (at the time of lateral movement restriction tightening release) of the lateral movement restriction tightening device in the in-vehicle weighing device according to the third embodiment of the present invention. It is the whole bulk lorry provided with the vehicle-mounted weighing | measuring apparatus which concerns on the 4th Embodiment of this invention. FIG. 2 is a schematic plan view of the bulk lorry body (a tank is schematically indicated by a virtual line). It is a whole side view of the bulk lorry provided with the vehicle-mounted weighing | measuring apparatus which concerns on the 5th Embodiment of this invention. FIG. 2 is a schematic plan view of the bulk lorry body (a tank is schematically indicated by a virtual line). It is a whole side view of the garbage truck provided with the vehicle-mounted weighing | measuring apparatus which concerns on the 6th Embodiment of this invention. FIG. 2 is a schematic plan view of the vehicle body of the garbage truck (a dust storage tank is schematically indicated by a virtual line). It is a whole tank trolley provided with the vehicle-mounted weighing | measuring apparatus which concerns on the 7th Embodiment of this invention. FIG. 2 is a schematic plan view of a tank body of the tank lorry (a tank is schematically indicated by a virtual line).

Explanation of symbols

1 Bulk lorry (vehicle)
DESCRIPTION OF SYMBOLS 3 Tank 5 Body frame 7 Load cell 15 Measuring part 10 Rocker pin 11 Rocker pin holder 14 Belleville spring 20 (20A-20D) Lateral movement control tightening device 21 Body side bracket 22 Hydraulic cylinder 23 First drive link 24 First connection pin 25 First 2 drive link 26 pivot shaft 27 second connecting pin 28 first driven link 29 guide rod 30 lifting block 31 third connecting pin 32 second driven link 33 insertion shaft body 34 lifting rod 35 tank side bracket 36 backing plate 38 cup shape Body (lateral movement restriction member)
39 Overload prevention bolt 40 Fourth connecting pin 61 Contact bolt (contact member)
62 disc spring 71 taper member 80 garbage truck (vehicle)
81 Waste storage tank 90 Tank truck 91 Tank

Claims (5)

A container for containing the contents is mounted on the frame of the vehicle body, a plurality of load cells are fixed to the vehicle body side or the container side, the containers are supported by these load cells, and the weight of the container including the contents is measured. An on-vehicle weighing device that calculates the weight of the contents by
A fastening device for fastening the vehicle body frame and the container together;
A lateral movement restricting device for restricting movement of the container in the lateral direction with respect to the vehicle body frame;
It is configured to always support the container by the load cell,
During metering, release the tightening of the body frame by the clamping device, and is configured to be weighed in a state that releases the movement restriction in the lateral direction of the container by the lateral movement limiting device by the plurality of load cells,
A plurality of the lateral movement restriction devices are provided,
Each lateral movement restricting device is formed with an insertion shaft body with a longitudinal axis provided on one side of the vehicle body and the container, and a hole portion provided on the other side of the vehicle body and the container, into which the insertion shaft body is inserted. The horizontal movement restricting member is arranged so as to be freely detachable in the vertical direction with respect to the insertion shaft body, and the inner circumferential surface facing the hole is in contact with the insertion shaft body from the outer circumferential side to restrict the movement in the lateral direction. And
The lateral movement restriction device is disposed so as to have a gap between the insertion shaft body and the lateral movement restriction member at the time of lateral movement restriction, and one lateral movement restriction device in the plurality of lateral movement restriction devices, When shifting from the lateral movement restriction release state to the lateral movement restriction state, a lateral movement restriction member having a hole serving as a reference for alignment between the body frame and the tank is provided,
As the lateral movement regulating device,
A first lateral movement restricting device provided with a lateral movement restricting member having a hole serving as a reference for alignment between the body frame and the tank when shifting from the lateral movement restriction release state to the lateral movement restriction state;
A second lateral movement restricting device disposed at a different position in the left and right direction at the same position in the front-rear direction with respect to the first lateral movement restricting device;
A third lateral movement restricting device arranged at the same position in the left-right direction and different positions in the front-rear direction with respect to the first lateral movement restricting device;
At least a fourth lateral movement restricting device disposed at different positions in the left-right direction and the front-rear direction with respect to the first lateral movement restricting device;
In the first lateral movement restricting device, the gap between the insertion shaft body and the lateral movement restricting member is formed to be substantially uniform with respect to the circumferential direction,
In the second lateral movement restricting device, in the gap between the insertion shaft body and the lateral movement restricting member, a front-rear direction gap is formed between the insertion shaft body and the lateral portion of the first lateral movement restricting device. It is substantially the same as the gap between the movement restricting members and is formed so that the gap in the left-right direction is larger than the gap in the front-rear direction,
In the third lateral movement restricting device, in the gap between the insertion shaft body and the lateral movement restricting member, a left-right gap is formed between the insertion shaft body of the first lateral movement restricting device and the lateral member. It is substantially the same as the gap between the movement restricting member and is formed so that the gap in the front-rear direction is larger than the gap in the left-right direction,
In the fourth lateral movement restricting device, a gap in the left-right direction and the front-rear direction between the insertion shaft body and the lateral movement restricting member is formed between the insertion shaft body of the first lateral movement restricting device and the lateral direction. An in-vehicle weighing device, wherein the on-vehicle weighing device is formed to be larger than a gap between the movement regulating member . A container for containing the contents is mounted on the frame of the vehicle body, a plurality of load cells are fixed to the vehicle body side or the container side, the containers are supported by these load cells, and the weight of the container including the contents is measured. An on-vehicle weighing device that calculates the weight of the contents by
A fastening device for fastening the vehicle body frame and the container together;
A lateral movement restricting device for restricting movement of the container in the lateral direction with respect to the vehicle body frame;
It is configured to always support the container by the load cell,
During metering, release the tightening of the body frame by the clamping device, and is configured to be weighed in a state that releases the movement restriction in the lateral direction of the container by the lateral movement limiting device by the plurality of load cells,
A plurality of the lateral movement restriction devices are provided,
Each lateral movement restricting device is formed with an insertion shaft body with a longitudinal axis provided on one side of the vehicle body and the container, and a hole portion provided on the other side of the vehicle body and the container, into which the insertion shaft body is inserted. The horizontal movement restricting member is arranged so as to be freely detachable in the vertical direction with respect to the insertion shaft body, and the inner circumferential surface facing the hole is in contact with the insertion shaft body from the outer circumferential side to restrict the movement in the lateral direction. And
The lateral movement restriction device is disposed so as to have a gap between the insertion shaft body and the lateral movement restriction member at the time of lateral movement restriction, and one lateral movement restriction device in the plurality of lateral movement restriction devices, When shifting from the lateral movement restriction release state to the lateral movement restriction state, a lateral movement restriction member having a hole serving as a reference for alignment between the body frame and the tank is provided,
The lateral movement regulating device is disposed so as to have a gap between the insertion shaft body and the lateral movement regulating member at the time of lateral movement regulation, and the gap is different for each lateral movement regulating device,
The gap between the insertion shaft body and the lateral movement restricting member is a gap corresponding to the amount of deformation caused by twisting due to the unevenness of the installation location of the vehicle for the first lateral movement restricting device serving as a reference. With respect to other lateral movement regulating devices, the lateral movement regulating device from the insertion shaft body of the first lateral movement regulating device to the amount of deformation caused by the twist due to the unevenness of the installation location of the vehicle. A vehicle-mounted weighing device characterized by having a dimension to which a deformation amount due to a difference in thermal expansion coefficient is added according to the distance and direction of the insertion shaft body . A method for setting the said by insertion into the hole beside restricting state of the insertion shaft body the lateral movement restricting member of the lateral movement restraining device in the vehicle weighing apparatus according to claim 1, firstly, the first the insertion shaft of the lateral movement restraining device is inserted into the hole portion of the lateral movement restricting member, then to insert the said insertion shaft of the other of the lateral movement restraining device in the hole of the lateral movement restricting member An in-vehicle weighing apparatus setting method. A method for setting the said by insertion into the hole beside restricting state of the insertion shaft body the lateral movement restricting member of the lateral movement restraining device in the vehicle weighing apparatus according to claim 1, firstly, the first the insertion shaft of the lateral movement restraining device is inserted into the hole portion of the first lateral movement restricting member, then, one of said second lateral movement restraining devices and said third lateral movement restraining devices of the insertion shaft of the lateral movement restraining device is inserted into the hole portion of the lateral movement restricting member of the one, then the other of said second lateral movement restraining devices and said third lateral movement restraining devices the insertion shaft of the lateral movement restricting equipment is inserted into the hole portion of the other lateral movement restricting member, then the fourth the said insertion shaft of the lateral movement restriction device according to the fourth lateral movement restricting member A method for setting a vehicle-mounted weighing device, wherein the method is inserted into a hole of the vehicle. A container for containing the contents is mounted on the frame of the vehicle body, a plurality of load cells are fixed to the vehicle body side or the container side, the containers are supported by these load cells, and the weight of the container including the contents is measured. An on-vehicle weighing device that calculates the weight of the contents by
A fastening device for fastening the vehicle body frame and the container together;
A lateral movement restricting device for restricting movement of the container in the lateral direction with respect to the vehicle body frame;
It is configured to always support the container by the load cell,
During metering, release the tightening of the body frame by the clamping device, and is configured to be weighed in a state that releases the movement restriction in the lateral direction of the container by the lateral movement limiting device by the plurality of load cells,
A plurality of the lateral movement restriction devices are provided,
Each lateral movement restricting device is formed with an insertion shaft body with a longitudinal axis provided on one side of the vehicle body and the container, and a hole portion provided on the other side of the vehicle body and the container, into which the insertion shaft body is inserted. The horizontal movement restricting member is arranged so as to be freely detachable in the vertical direction with respect to the insertion shaft body, and the inner circumferential surface facing the hole is in contact with the insertion shaft body from the outer circumferential side to restrict the movement in the lateral direction. And
The lateral movement restricting member is supported by a tightening drive means disposed on the one side of the vehicle body and the container so as to be movable in the vertical direction, and a receiving member disposed on the other side of the vehicle body and the container. Are arranged to be engageable with each other,
The lateral movement restricting member is provided with a hook-like portion extending in a hook shape in the horizontal direction and a cylindrical portion formed so as to open downward from the hook-like portion,
The lateral movement restricting member is held in a state in which the outer peripheral surface of the tubular portion of the lateral movement restricting member is laterally restricted with respect to the receiving member and movable in the vertical direction.
At the time of tightening, the hook-shaped portion of the lateral movement restricting member presses the receiving member to prevent vertical movement of the container relative to the vehicle body and tightens, and the insertion shaft body is inserted into the tubular portion of the lateral movement restricting member. Is inserted, and the inner peripheral surface of the cylindrical portion is in contact with the insertion shaft body from the outer peripheral side to restrict lateral movement,
The on-vehicle weighing device characterized in that the tightening device and the lateral movement regulating device are combined as one unit .

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