JP5128145B2 - Height adjustment leg bracket - Google Patents

Description

  The present invention relates to a height adjusting leg bracket used for installing a vending machine, a unit bath, and other various objects to be installed on a predetermined floor surface while adjusting the height.

  2. Description of the Related Art Conventionally, height adjustment leg brackets that can adjust the horizontal height position of an object to be installed such as a vending machine are known.

  FIG. 17 shows an example of a conventional height adjusting leg bracket. The height adjusting leg bracket 191 includes a bolt shaft 192 having a male thread and a dome-shaped base 193 that is grounded to a floor surface or the like. The lower part of the bolt shaft 192 is rotatably inserted into a bolt insertion hole 193a provided at the top of the pedestal 193, and a seat part 194 and a retaining part 195 are integrally formed on the upper side and the lower side (inner side) of the pedestal 193, respectively. (Patent Documents 1 and 2 can be cited as examples in which approximate techniques are disclosed).

In such a leg bracket 191, the installation object M is raised and lowered by the screwing amount of the bolt shaft 192 with respect to the female thread portion S provided on the installation object M, and the height adjustment and the horizontal adjustment are performed. At this time, since the bolt shaft 192 is rotatably inserted into the bolt insertion hole 193a of the pedestal 193, the bolt shaft 192 can be rotated without rotating the grounded pedestal 193 to adjust the screwing amount. Thus, the height of the object M can be adjusted without lifting it.
Japanese Utility Model Publication No. 3-112039 Japanese Utility Model Publication No. 61-187548

  However, in the above conventional height adjustment leg bracket, the pedestal is not fixed to the floor at all. Therefore, in the installation state in which the height position of the object to be installed is adjusted, it is subject to vibration and impact from the outside. When an earthquake occurs, there is a problem that the pedestal is laterally shifted and the installation position of the installation object is shifted, or the installation object falls when the intensity of the earthquake is large.

  The present invention has been made in view of such a technical background, and even when subjected to vibration or impact from the outside or an earthquake occurs, it is possible to satisfactorily maintain an appropriate support state of the installation object. An object is to provide a height-adjustable leg bracket.

  In order to achieve the above object, the present invention provides the following means.

[1] a bolt shaft with a male thread cut;
A dome-shaped base provided with a bolt insertion hole through which the bolt shaft is rotatably inserted at the top;
A seat having a diameter larger than that of the bolt insertion hole provided on the bolt shaft so as to rotate integrally with the bolt shaft on the upper side of the bolt insertion hole;
Provided at the lower end of the bolt shaft in a state of projecting to the lower side of the bolt insertion hole, and a retaining portion having a larger diameter than the bolt insertion hole;
A base plate fixed to the lower surface of the pedestal;
A height-adjustable leg bracket comprising: a mat that is superposed on the lower surface of the base plate and has adhesiveness on both upper and lower surfaces.

  [2] A screw insertion hole is provided in a peripheral portion of the pedestal, a screw hole is provided in the base plate, and a cylindrical portion protrudes upward from the peripheral portion of the screw hole on the upper surface of the base plate. The cylindrical portion of the base plate is disposed in a state of being inserted into the screw insertion hole of the pedestal, and the screw is screwed into the screw hole of the base plate through the screw insertion hole of the pedestal. The height adjusting leg bracket according to claim 1, wherein the base plate is fixed to the lower surface of the pedestal.

  [3] The height according to item 1, wherein the base plate is fixed to the lower surface of the base by joining the base and the base plate at a plurality of welds formed by spot welding. Adjustable leg bracket.

[4] An edge frame projecting downward is provided on the peripheral edge of the base plate,
The mat is disposed so that a part of the mat in the thickness direction is fitted in a recessed space surrounded by the edge frame portion on the lower surface side of the base plate, and is superimposed on the lower surface of the base plate. The height adjusting leg metal fitting according to any one of the preceding items 1 to 3.

[5] An edge frame projecting downward is provided on the peripheral edge of the pedestal,
The base plate is disposed in a recessed space surrounded by the edge frame portion on the lower surface side of the pedestal,
The mat is disposed so that a part of the mat in the thickness direction is fitted in a recessed space surrounded by the edge frame portion on the lower surface side of the base plate, and is superimposed on the lower surface of the base plate. The height adjusting leg metal fitting according to any one of the preceding items 1 to 3.

[6] A bolt shaft with a male thread cut;
A dome-shaped base provided with a bolt insertion hole through which the bolt shaft is rotatably inserted at the top;
A seat having a diameter larger than that of the bolt insertion hole provided on the bolt shaft so as to rotate integrally with the bolt shaft on the upper side of the bolt insertion hole;
Provided at the lower end of the bolt shaft in a state of projecting to the lower side of the bolt insertion hole, and a retaining portion having a larger diameter than the bolt insertion hole;
A base plate disposed on the lower surface side of the pedestal;
A pedestal fixing member fixed by sandwiching the pedestal between the base plate and being fixed to the upper surface of the base plate in contact with the outer peripheral surface of the dome portion of the pedestal from above;
A height-adjustable leg bracket comprising: a mat that is superposed on the lower surface of the base plate and has adhesiveness on both upper and lower surfaces.

  [7] A screw insertion hole is provided in an edge portion of the base fixing member, a screw hole is provided in the base plate, and a cylindrical portion is integrally formed upward from a peripheral portion of the screw hole on the upper surface of the base plate. The base plate is disposed so that the cylindrical portion of the base plate is inserted into the screw insertion hole of the base fixing member, and the screw is inserted through the screw insertion hole of the base fixing member. 7. The height adjusting leg bracket according to claim 6, wherein the base is sandwiched and fixed between the base fixing member and the base plate by being screwed to the base plate.

[8] The height adjusting leg metal fitting according to any one of items 1 to 7, wherein the mat is made of urethane elastomer .

[9] when the lower surface of the area of the base plate is 100, for height adjustment according to any one of the mat one side of the preceding area has been set in the range of 80-110 1-8 Leg bracket.

  In the invention of [1], the bolt shaft is attached to the installation object by being screwed into the female screw portion of the installation object, and the height of the installation object is adjusted by adjusting the screwing amount. At this time, since the bolt shaft is rotatably inserted into the pedestal, the height of the installation object can be adjusted by rotating the bolt shaft while the base plate is grounded via the mat. Moreover, since the seat part which rotates integrally with a bolt axis | shaft is provided above the base, height adjustment can be easily performed by rotating this seat part.

  Further, since the base plate is fixed to the lower surface of the pedestal, the base plate and the mat are overlapped with no gap, and sufficient adhesion between the base plate and the mat can be obtained, for example, an earthquake or external vibration Even if this occurs, upper structures such as bolt shafts and pedestals that support the object to be installed will not be detached from the mat.

  In addition, since the mat with adhesive on both the top and bottom is superimposed on the bottom surface of the base plate, the leg bracket can be fixed on the floor surface by simply placing the leg bracket on the floor surface. Excellent in properties. Furthermore, since the mat with adhesive on both the upper and lower sides is arranged on the lower surface of the base plate, for example, even if an earthquake or external vibration occurs, it can be absorbed effectively and sufficient lateral load resistance etc. Therefore, even if an earthquake occurs, the proper support state of the installation object can be maintained well.

  In the invention of [2], since the cylindrical portion of the peripheral edge of the screw hole of the base plate is inserted into the screw insertion hole of the pedestal, it is fixed by screw tightening. Thus, the proper support state of the installation object can be sufficiently maintained even when a larger earthquake occurs.

  In the invention of [3], since the pedestal and the base plate are joined by a plurality of welds formed by spot welding, the pedestal and the base plate are firmly fixed, and the manufacturing cost can be reduced. There are advantages.

  In the invention of [4], the mat is disposed in a state in which a part in the thickness direction is fitted in the recessed space surrounded by the edge frame on the lower surface side of the base plate. Even when the mat is compressed by the weight of the object to be installed, it is possible to prevent the peripheral edge of the mat from protruding outward from the edge of the base plate, thereby realizing an installation work with a good appearance. be able to. In general, when a plurality of height adjustment leg brackets are used to support an object to be installed, there is often a difference in the load received by each height adjustment leg bracket. In addition, since the edge frame portion surrounding the mat is formed, the amount of compressive deformation of the mat due to the variation in the load is finally regulated by the edge frame portion, and as a result, there is a variation in the load. However, the amount of compressive deformation of each mat is kept substantially the same, and the horizontal state set at the time of installation is maintained as it is.

  In the invention of [5], the base plate is disposed in the recessed space surrounded by the edge frame portion on the lower surface side of the pedestal, and the mat has a part in the thickness direction on the lower surface side of the base plate. Since the mat is disposed in a recessed space surrounded by the edge frame portion, the peripheral portion of the mat is a pedestal even when the mat is compressed by the weight of the object to be installed when the object is supported. It can be prevented from protruding outward from the edge of the base plate and the edge of the base plate, and an installation work with a good appearance can be realized. Moreover, since the edge frame part of the peripheral part of a base can be formed by bending simultaneously when bending the dome part of a base, productivity can also be improved. Also, in general, when a plurality of height adjustment leg brackets are used to support an object to be installed, there is often a difference in the load received by each height adjustment leg bracket. Since the edge frame portion surrounding the mat is formed, the amount of compressive deformation of the mat due to the variation in the load is finally restricted by the edge frame portion. The amount of compressive deformation of each mat is kept substantially the same, and the horizontal state set at the time of installation is maintained as it is.

  In the invention of [6], the bolt shaft is attached to the installation object by being screwed into the female screw portion of the installation object, and the height of the installation object is adjusted by adjusting the screwing amount. At this time, since the bolt shaft is rotatably inserted into the pedestal, the height of the installation object can be adjusted by rotating the bolt shaft while the base plate is grounded via the mat. Moreover, since the seat part which rotates integrally with a bolt axis | shaft is provided above the base, height adjustment can be easily performed by rotating this seat part.

  In addition, since the mat with adhesive on both the top and bottom is superimposed on the bottom surface of the base plate, the leg bracket can be fixed on the floor surface by simply placing the leg bracket on the floor surface. Excellent in properties. Furthermore, since the mat with adhesive on both the upper and lower sides is arranged on the lower surface of the base plate, for example, even if an earthquake or external vibration occurs, it can be absorbed effectively and sufficient lateral load resistance etc. Therefore, even if an earthquake occurs, the proper support state of the installation object can be maintained well.

  In addition, the pedestal fixing member is fixed to the upper surface of the base plate while being in contact with the outer peripheral surface of the dome portion of the pedestal from above, so that the pedestal is sandwiched and fixed between the pedestal fixing member and the base plate. Therefore, even when a relatively heavy object is supported, a situation in which stress is concentrated on a part of the pedestal is avoided.

  In the invention of [7], since the cylindrical portion of the peripheral portion of the screw hole of the base plate is inserted into the screw insertion hole of the base fixing member, it is fixed by screw tightening. The member and the base plate are more firmly fixed, and thereby, the proper support state of the installation object can be sufficiently maintained even if a larger earthquake occurs.

[8] In the invention of [8], the mat is made of urethane elastomer, and its high resilience increases vibration absorption and the like. In addition, it exhibits excellent earthquake resistance, that is, even if a larger earthquake occurs, the proper support state of the installation object can be sufficiently maintained .

In the invention of [ 9 ], when the area of the lower surface of the base plate is 100, the area of one side of the mat is set in the range of 80 to 110, so that sufficient seismic performance is achieved while reducing costs. Can be maintained.

  FIG. 1 is a front view showing a height adjusting leg bracket according to the first embodiment of the present invention, FIG. 2 is a plan view showing the height adjusting leg bracket, and FIG. 3 is also a height adjusting leg bracket. FIG. 4 is a cross-sectional view in a use state along the line AA in FIG.

  The height-adjusting leg bracket according to the present invention is a leg bracket used when various objects to be installed such as vending machines, various mechanical devices, showcases, and other unit baths are installed on the floor or foundation. Therefore, the height can be adjusted.

  1 to 4, a height adjusting leg bracket 1 according to the first embodiment includes a bolt shaft 2, a dome-shaped base 3, and a seat integrally provided on the bolt shaft 2 above the base 3. Part 4, a retaining part 5 provided at the lower end 2 b of the bolt shaft 2 on the lower side (inside) of the pedestal 3, a lock nut 6 screwed into the upper part 2 a of the bolt shaft 2, a base plate 7, And a mat 13 having upper and lower adhesive surfaces.

  The bolt shaft 2 is made of a metal shaft having a male screw 21 formed over substantially the entire length. The bolt shaft 2 is mounted on the object to be installed M by screwing the upper male screw part 2 a into the female screw part S of the object to be installed M. Moreover, the installation height of the installation object M is adjusted by adjusting this screwing amount X (refer FIG. 4). Note that the lower end 2b of the bolt shaft 2 is not cut off by a male screw as will be described later.

  The pedestal 3 functions as a leg portion that contacts the bottom surface F or the like via the base plate 7 and the mat 13. For example, the center portion can be formed by pressing or cutting a circular metal plate. 32 is formed in a dome shape bulging upward. The lower end peripheral part 33 of this base 3 is formed as a horizontal planar ring-shaped collar part (refer FIGS. 1-4).

  A bolt insertion hole 31 through which the bolt shaft 2 is inserted is formed at the top of the dome portion 32 located at the center of the base 3 (see FIG. 4). Further, as shown in FIG. 3, a plurality of screw insertion holes 9 that are spaced apart from each other at substantially equal intervals in the circumferential direction are formed in the peripheral portion 33. In the present embodiment, four screw insertion holes 9 are formed.

  The seat portion 4 is a hexagon nut that is attached to the bolt shaft 2 in a non-rotating state above the pedestal 3. The seat portion 4 is formed to have a diameter larger than that of the bolt insertion hole 31 and is rotatably seated on the upper surface of the pedestal 3 (see FIG. 4).

  It should be noted that the male screw is not cut below the seat portion 4 in the bolt shaft 2 so that the bolt shaft 2 can easily rotate in the bolt insertion hole 31 (see FIG. 4).

  The retaining portion 5 is a hexagon nut attached to the lower end portion 2b of the bolt shaft 2 that protrudes to the lower side (inside) of the base 3. The retaining nut 5 is formed to have a larger diameter than the bolt insertion hole 31, so that the retaining nut 5 functions as a retaining portion that prevents the base 3 from falling off when the bolt shaft 2 is lifted. (See FIG. 4).

  The retaining nut 5 is press-fitted with a nut having an internal thread having an inner diameter smaller than the outer diameter of the lower end 2b to the lower end 2b where the external thread 21 of the bolt shaft 2 is not cut, while crushing the threads of the internal thread By doing so, it is non-rotatably fitted. The lower end portions of the retaining nut 5 and the bolt shaft 2 are located above the lower end of the pedestal 3 and at a height level raised from the installation surface F (see FIG. 4). Of course, the retaining part 5 is not limited to the configuration of the present embodiment, and various structures can be adopted as long as it has a retaining function.

  The lock nut 6 is screwed into the upper portion 2a of the bolt shaft 2 and is tightened toward the female screw portion S of the installation object M to fix the installation position of the installation object M (FIGS. 3 and 4). reference).

  The base plate 7 is a flat plate member fixed to the lower surface of the pedestal 3. The base plate 7 is not particularly limited. For example, a metal plate (thickness of about 4.5 mm or the like) such as a SUS plate is used. In the present embodiment, the base plate 7 is formed in a 10 cm × 10 cm square, but it is of course not particularly limited to such a size and shape. The base plate 7 is formed with four screw holes (female screw portions) 8 corresponding to the four screw insertion holes 9 of the peripheral edge portion 33 of the base 3 (see FIG. 3).

  In addition, on the surface side of the base plate 7, in order to fit in the screw insertion hole 9, a small cylindrical portion 8a surrounding each screw hole 8 is integrally formed (see FIG. 3). The height of the cylindrical portion 8a is set to, for example, about 1 to 2 mm.

  Four screw insertion holes 9 in the peripheral edge portion 33 of the pedestal 3 are externally fitted to the respective cylinder portions 8a on the upper surface side of the base plate 7, and the hexagon socket screws 10 inserted through the screw insertion holes 9 are respectively described above. The base plate 7 is fixed to the pedestal 3 by being screwed into the screw holes 8 of the base plate 7 (see FIGS. 1 to 3 and 5).

  Since the cylindrical portion 8a is provided on the upper surface of the base plate 7, when the pedestal 3 is assembled to the base plate 7, a screw insertion hole 9 on the pedestal 3 side is formed in the cylindrical portion 8a as shown in FIG. Since it is in an externally placed arrangement state, even if it receives a vibration or impact from the outside in the state of use or an earthquake occurs, it is possible to sufficiently prevent the pedestal 3 from sideways with respect to the base plate 7.

  A screw hole (female screw portion) 11 into which a hexagon socket head screw 12 is screwed is formed at a corner portion of the base plate 7, and a small cylindrical portion 11 a surrounding the screw hole 11 is the base plate 7. It is integrally projected on the upper surface of the.

  The mat 13 is a mat that is placed on the lower surface of the base plate 7 and has adhesiveness on both upper and lower surfaces. In this embodiment, a 10 mm × 10 cm square having the same thickness as the base plate 7 and the same size as the base plate 7 is used, but it is of course limited to such a size and shape. It is not something.

  The mat 13 only needs to have adhesiveness on both upper and lower surfaces, and the base plate 7 is held so as not to lie down with respect to the floor surface F due to the adhesiveness.

Among them, as the mat 13, a urethane elastomer mat having adhesiveness on both upper and lower surfaces is preferable. Since it is made of a urethane elastomer, vibration absorption and the like are enhanced by its high rebound resilience, so that, in combination with the adhesive strength of the upper and lower surfaces, excellent earthquake resistance is exhibited even for larger earthquakes .

  Usually, when the mat 13 is shipped from the factory, protective films (not shown) are attached to both the upper and lower surfaces of the mat 13, so when the mat 13 is mounted on the lower surface of the base plate 7, The protective films on both the upper and lower surfaces are peeled off, and the mat 13 may be attached (adhered) to the lower surface of the base plate 7. Of course, the mat 13 may be adhered (adhered) to the lower surface of the base plate 7 from the time of factory shipment.

  Next, the installation procedure of the installation object M using the height adjusting leg bracket 1 will be described.

  First, as shown in FIG. 4, the upper portion 2 a of the bolt shaft 2 is screwed into the female screw portion S of the installation object M and attached to the installation object M. Usually, in order to support one installation object M with a plurality of height adjusting leg brackets 1, a plurality of height adjusting brackets 1 are attached.

  Meanwhile, the upper and lower protective films are peeled off from the mat 13.

  Next, the base plate 7 in each of the height adjusting leg brackets 1 is adhered to the floor surface F via the mat 13 so that the object to be installed M is positioned at a predetermined installation position.

  Then, in this grounding state, by appropriately rotating the seat portion 4 of each height adjusting leg bracket 1 with a tool such as a spanner, the screwing amount X of the bolt shaft 2 with respect to the female thread portion S of the object M is set. To adjust the installation height adjustment and horizontal adjustment of the object M to be installed. Further, when the lock nut 6 is tightened toward the female thread portion S of the installation object M to fix the mounting position of the installation object M, the height adjustment and the horizontal adjustment of the installation object M are completed (FIG. 4). reference).

  In this height adjusting bracket 1, the bolt shaft 2 can be easily attached to the installation object M by screwing the bolt shaft 2 into the female screw portion S formed at the lower part of the installation object M, etc. It is possible to adjust the height of the object M to be adjusted.

  At this time, since the bolt shaft 2 is rotatably inserted into the pedestal 3, the height of the object to be installed M can be obtained simply by rotating the bolt shaft 2 while the base plate 7 is grounded via the mat 13. Adjustments can be made. Further, since the seat portion 4 that rotates integrally with the bolt shaft 2 is provided on the upper side of the pedestal 3, the height can be easily adjusted simply by rotating the seat portion 4.

  Moreover, since the mat | matte 13 which upper and lower surfaces have adhesiveness is affixed on the lower surface of the said base board 7, it can construct easily on the floor surface F only by mounting these. Further, since the base plate 7 is adhered to the floor surface F via the mat 13, when the height of the object to be installed M is adjusted, the base plate 7 does not move sideways and is in a stable state. Sufficiently maintained, the installation work can proceed smoothly.

  Furthermore, in the support structure for the object to be installed M using the height adjusting metal fitting 1, the proper support state of the object to be installed M can be maintained even if it receives a vibration or impact from the outside or an earthquake occurs. In particular, when the mat 13 is a urethane elastomer mat having adhesiveness on both upper and lower surfaces, even if the mat 13 receives vibration or impact from the outside or an earthquake occurs, the mat 13 is sufficiently vibrated by the high resilience. Since it can be absorbed, the proper support state of the installation object M can be sufficiently maintained in combination with the adhesive strength of the upper and lower surfaces of the mat 13. That is, even if a large earthquake occurs, not only the fall of the installation object M can be prevented, but also the displacement movement of the installation object M can be effectively prevented.

  In addition, when canceling the installation state of the installation object M, the screw 12 is further screwed from the state of FIG. Then, the base plate 7 and the mat 13 are peeled in the vicinity of the screw 12, that is, the screw hole 11 side of the base plate 7 is peeled off from the mat 13 and floats up obliquely. The base plate 7 can be detached from the mat 13. Thereafter, the mat 13 can be detached by slowly peeling the mat 13 from the floor F in order from the edge.

  Next explained is the second embodiment of the invention.

  6 is a front view showing a height-adjusting leg bracket according to the second embodiment of the present invention, FIG. 7 is a plan view showing the height-adjusting leg bracket, and FIG. It is sectional drawing in the use condition along a line. 6 to 8, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the height adjusting leg metal fitting 1 of the second embodiment, the base plate 7 and the mat 13 are formed in a circular shape in plan view (see FIG. 7). Further, an edge frame portion 71 projecting downward from the lower surface of the base plate 7 is provided on the peripheral portion of the base plate 7 (see FIG. 8), and the edge frame portion on the lower surface side of the base plate 7 is provided. The mat 13 is adhered to the lower surface of the base plate 7 in a state where a part of the mat 13 in the thickness direction is accommodated in the recessed space surrounded by 71 (see FIGS. 6 and 8).

  The edge frame portion 71 is for restricting expansion deformation in the horizontal direction due to compression of the mat 13 in a state where the object M is supported, and its height h is smaller than the thickness of the mat 13. (See FIG. 8). In the present embodiment, the edge frame portion 71 is formed integrally with the base plate 7. That is, the edge frame portion 71 is formed by bending a peripheral portion of a metal flat plate (circular plate) downward.

  In the second embodiment, the height of the object M can be easily adjusted in the same procedure as in the first embodiment, and the presence of the mat 13 on the lower surface of the base plate 7 Even if an earthquake occurs, the proper support state of the installation object can be maintained well, and the earthquake resistance is excellent.

  The mat 13 is formed between the outer peripheral side surface of the mat 13 and the inner peripheral surface of the edge frame portion 71 in consideration of an increase in area due to compression deformation of the mat 13 in a state where the object M is supported. The size is preferably set such that a gap (for example, a gap of about 2 mm) g exists (see FIG. 6). In this case, when the object to be installed M is supported, as shown in FIG. 8, the mat 13 expands in the horizontal direction by compression, so that the gap g disappears, and further expansion deformation in the horizontal direction occurs. Therefore, the peripheral edge portion of the mat 13 can be prevented from protruding outward from the edge of the base plate 7, thereby realizing construction with a good appearance. Moreover, in the support state shown in FIG. 8, since the lower end of the edge frame part 71 of the base board 7 is located above the floor F (it is in a non-contact state with the floor F), if it has only an excellent earthquake-resistant function, In addition, an excellent vibration control function can be exhibited.

  When the lower end of the edge frame portion 71 comes into contact with the floor F along with the compression deformation of the mat 13 in the state in which the installation object M is supported, a vibration damping function due to the elasticity of the mat 13 can be sufficiently obtained. Although it becomes difficult, since the lower surface of the mat 13 is adhered to the floor F, the earthquake resistance function is sufficiently exhibited. Therefore, even if the vibration control function is not sufficiently obtained, it is possible to design the lower end of the edge frame portion 71 to contact the floor F by compressive deformation of the mat 13 in order to ensure an excellent earthquake resistance function. .

  By the way, when the object M is supported by using a plurality of height adjusting leg brackets 1, there are many cases in which the loads received by the height adjusting leg brackets 1 are different. The amount of compressive deformation of the mat 13 on the lower surface side of each height adjusting leg bracket 1 also varies with time. Then, even if the installation object M is adjusted in height so as to be kept horizontal at the beginning of installation, there is a possibility that a tilt may gradually occur as time elapses. On the other hand, in the second embodiment, since the edge frame portion 71 surrounding the mat 13 is formed at the peripheral edge portion of the base plate 7, the amount of compressive deformation of the mat 13 due to the variation in the load is the final amount. Therefore, even if there is a variation in load, the amount of compressive deformation of each mat 13 is kept substantially the same, that is, the horizontal state at the time of installation is maintained as it is. .

  In the second embodiment, the configuration in which the edge frame portion 71 is formed integrally with the base plate 7 is employed. However, the configuration is not particularly limited to such a configuration. For example, the edge frame portion 71 is a base plate. The structure fixed to the periphery of 7 by welding is also employable.

  Next explained is the third embodiment of the invention.

  FIG. 9 is a front view showing a height adjusting leg bracket according to a third embodiment of the present invention, FIG. 10 is a plan view showing the height adjusting leg bracket, and FIG. 11 is YY in FIG. It is sectional drawing in the use condition along a line. 9 to 11, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The pedestal 3 includes a dome portion 32 formed in a dome shape bulging upward, and a lower end peripheral portion 33 formed of an annular flat plate extending outward from the periphery of the dome portion 32. Although it is the same as that of the said 1st Embodiment, in this 3rd Embodiment, the edge frame part 72 which protrudes below from the lower surface of this lower end peripheral part 33 in the outer peripheral part of the lower end peripheral part 33 of the base 3 is provided. Provided (see FIG. 11).

  Further, the base plate 7 and the mat 13 are formed in a circular shape in plan view (see FIG. 10). Thus, the peripheral edge of the base plate 7 and the lower peripheral edge 33 of the pedestal 3 are spot-welded at four locations spaced apart in the circumferential direction. Are joined and fixed by four welds 80 (see FIGS. 10 and 11). Further, the base plate 7 is disposed in a recessed space surrounded by the edge frame portion 72 on the lower surface side of the lower peripheral edge portion 33 of the pedestal 3 (see FIG. 11). Further, the mat 13 is arranged in a state in which a part of the thickness direction thereof is fitted (accommodated) in a recessed space surrounded by the edge frame portion 72 on the lower surface side of the base plate 7. Then, the mat 13 is adhered to the lower surface of the base plate 7 (see FIG. 11).

  The edge frame portion 72 is for restricting the expansion deformation in the horizontal direction due to the compression of the mat 13 in a state where the object M is supported, and the height d is smaller than the thickness of the mat 13. (See FIG. 11). In the present embodiment, the edge frame portion 72 is formed integrally with the pedestal 3. That is, the edge frame portion 72 is formed by bending the outer peripheral edge portion of the lower end peripheral edge portion 33 downward.

  In the third embodiment, the height of the installation object M can be easily adjusted in the same procedure as in the first embodiment, and the presence of the mat 13 on the lower surface of the base plate 7 Even if an earthquake occurs, the proper support state of the installation object can be maintained well, and the earthquake resistance is excellent.

  The mat 13 is formed between the outer peripheral side surface of the mat 13 and the inner peripheral surface of the edge frame portion 72 in consideration of an increase in area due to compression deformation of the mat 13 with the object M supported. It is preferable to set the size such that a gap (for example, a gap of about 2 mm) g exists (see FIG. 9). In this case, when the object to be installed M is supported, as shown in FIG. 11, the mat 13 is expanded in the horizontal direction by compression, so that the gap g disappears, and further expansion deformation in the horizontal direction is performed. Is regulated by the edge frame portion 72, so that the peripheral edge portion of the mat 13 can be prevented from protruding outward from the edge of the pedestal 3 (edge frame portion 72). Can be realized. Moreover, in the support state shown in FIG. 11, since the lower end of the edge frame part 72 of the base 3 is located above the floor F (it is in a non-contact state with the floor F), it not only has an excellent earthquake resistance function. Excellent vibration control function can also be exhibited.

  When the lower end of the edge frame portion 72 comes into contact with the floor F along with the compressive deformation of the mat 13 in the state in which the installation object M is supported, a vibration damping function due to the elasticity of the mat 13 can be sufficiently obtained. Although it becomes difficult, since the lower surface of the mat 13 is adhered to the floor F, the earthquake resistance function is sufficiently exhibited. Therefore, even if the vibration control function is not sufficiently obtained, it may be designed such that the lower end of the edge frame portion 72 comes into contact with the floor F by compression deformation of the mat 13 when it is desired to ensure an excellent earthquake resistance function. .

  By the way, when the object M is supported by using a plurality of height adjusting leg brackets 1, there are many cases in which the loads received by the height adjusting leg brackets 1 are different. The amount of compressive deformation of the mat 13 on the lower surface side of each height adjusting leg bracket 1 also varies with time. Then, even if the installation object M is adjusted in height so as to be kept horizontal at the beginning of installation, there is a possibility that a tilt may gradually occur as time elapses. On the other hand, in the third embodiment, since the edge frame portion 72 surrounding the mat 13 is formed at the peripheral edge portion of the pedestal 3, the amount of compressive deformation of the mat 13 due to the variation in the load is finally determined. As a result, even if there is a variation in load, the amount of compressive deformation of each mat 13 is kept substantially the same, that is, the horizontal state at the time of installation is maintained as it is.

  In the said 3rd Embodiment, although the structure integrally formed in the base 3 is employ | adopted for the edge frame part 72, it is not limited to such a structure in particular, For example, the edge frame part 72 of the base 3 is used. The structure fixed to the periphery by welding can also be adopted.

  Next explained is the fourth embodiment of the invention.

  FIG. 13 is a front view showing a height adjusting leg bracket according to a fourth embodiment of the present invention, FIG. 14 is a plan view showing the height adjusting leg bracket, and FIG. 15 is also a height adjusting leg bracket. FIG. 16 is a cross-sectional view in a use state along the line BB in FIG. In these FIGS. 13-16, the same code | symbol is attached | subjected about the component same as the said 1st Embodiment, and the description is abbreviate | omitted.

  13 to 16, a base 90 in the height adjusting leg bracket 1 includes a hollow base 91 having a circular shape in plan view formed using a metal material, and a hollow dome 92 connected to the upper portion of the base 91. Consists of. A bolt insertion hole 31 is formed at the top of the dome portion 92 (see FIG. 16).

  In this embodiment, since the hollow base 91 of the pedestal 90 is formed to be relatively thick, the load of the installation object M having a relatively large weight can be sufficiently supported.

  As shown in FIG. 16, a retaining portion 51 is integrally formed at the lower end of the bolt shaft 2. The retaining portion 51 is formed by caulking the lower end surface of the bolt shaft 2 from the outside in the axial direction using a punch or the like. Of course, it is possible to arbitrarily employ retaining means according to other configurations.

  The base plate 7 in contact with the lower surface of the pedestal 90 has a rectangular shape, and three screw holes 8 are provided at predetermined intervals along the front-rear direction at both left and right ends of the base plate 7. (See FIG. 15). Screws 200 for fastening and fixing a base fixing member 100 described later to the base plate 7 are screwed into these screw holes 8 (see FIG. 15).

  In addition, a screw hole (female screw portion) 12 into which another screw 201 is screwed is formed at the left end front position of the base plate 7 (see FIG. 15). Similar to the first embodiment, the screw 201 is used to lift the base plate 7 from the mat 13 and peel it off when releasing the installation state of the object M to be installed.

  A pedestal fixing member 100 is put on the pedestal 90. The pedestal fixing member 100 is horizontally outward from the lower ends of the gate-shaped portion 101 sized to straddle the dome portion 92 of the pedestal 90 and the left and right falling portions 106a, 106b of the gate-shaped portion 101. And left and right attachment piece portions 102a and 102b extending toward (see FIGS. 13 to 16). Three screw insertion holes 110 through which the screws 200 are inserted are respectively formed in the left and right attachment pieces 102a and 102b (see FIG. 15).

  A circular opening 103 having a diameter that does not hinder the insertion of the bolt shaft 2, the seat portion 4, etc. is formed in the center of the upper side portion 101 a of the portal portion 101, and the pedestal fixing member 100 When the screw 200 is fastened and fixed on the base plate 7 by the screw 200, the opening edge of the upper side portion 101a receives the tightening force and presses the peripheral surface of the dome portion 92 of the base 90 downward. (See FIGS. 15 and 16).

  In the height adjusting leg bracket 1, the base 90 is installed on the base plate 7, and then the base fixing member 100 in a state of covering the base 90 is screwed to the base plate 7 with the screws 200. The dome portion 92 of the pedestal 90 is pressed downward at the periphery of the lower end of the circular opening 103 in the pedestal fixing member 100, whereby the pedestal 90 is pressed and fixed on the base plate 7. And the said base board 7 is installed on the floor surface F through the said mat 13 (refer FIG. 16).

  In the fourth embodiment, the height of the object to be installed M can be easily adjusted in the same procedure as in the first embodiment, and the presence of the mat 13 on the lower surface of the base plate 7 Even if an earthquake occurs, the proper support state of the installation object can be maintained well, and the earthquake resistance is excellent.

  In the fourth embodiment, since the pedestal 90 is fixed to the base plate 7 by pressing the pedestal fixing member 100 in a state where the pedestal fixing member 100 is placed on the pedestal 90, the installation is relatively heavy. When the object M is supported, a situation in which stress is concentrated on a part of the pedestal 90 can be avoided even if an external vibration or shock occurs or an earthquake occurs.

  By the way, in the first embodiment described above, the spacing between the seat portion 4 and the retaining portion 5 is configured such that play occurs when the pedestal 3 is sandwiched between the seat portion 4 and the retaining portion 5. ing. That is, when the seat portion 4 is in contact with the outer surface of the dome portion 32 of the pedestal 3, the retaining portion 5 is configured not to contact the inner surface of the dome portion 32 of the pedestal 3. (Refer FIG. 4), It is comprised so that the said play may arise. Similarly, in the fourth embodiment, the spacing between the seat portion 4 and the retaining portion 51 is such that play occurs when the pedestal 90 is sandwiched between the seat portion 4 and the retaining portion 51. It is configured. That is, when the seat portion 4 is in contact with the outer surface of the dome portion 92 of the pedestal 90, the retaining portion 51 is configured not to contact the inner surface of the dome portion 92 of the pedestal 90. (Refer FIG. 16), It is comprised so that the said play may arise. Similarly, the second and third embodiments are configured to generate play. In the first to fourth embodiments, since such a play is provided, it is possible to accept that the bolt shaft 2 is inclined during an earthquake or the like. Since the bolt shaft 2 is inclined, the force transmitted to the mat 13 via the pedestals 3 and 90 can be further dispersed and weakened by forming the bolt shaft 2 at an angle. You can have it. Therefore, it is preferable that such play is generated.

  In the first to fourth embodiments, the whole or upper part of the pedestals 3 and 90 is substantially hemispherical. However, it is not particularly limited to such a hemispherical shape, and an internal space is formed. Any shape can be used as long as it is a dome shape.

Moreover, in the said 1st-4th embodiment, although the structure where the one mat | matte 13 was piled up and stuck on the substantially whole surface of the lower surface of the base board 7 is employ | adopted, it is specifically limited to such a structure. For example, as shown in FIG. 12, a configuration in which a plurality of mats 13 are dispersed and superimposed on the lower surface of the base plate 7 may be employed. In the configuration shown in FIG. 12, a mat 13 having a circular shape in plan view is attached to each of the four corner portions on the lower surface of the base plate 7 .

  In this invention, when the area of the lower surface of the base plate 7 is 100, the area of one side of the mat 13 (the total value of the areas of one side of these mats in a configuration using a plurality of mats) is in the range of 60 to 110. Is preferably set. Even if a larger earthquake occurs by setting it to 60 or more, it is possible to sufficiently maintain the proper support state of the installation object, and it is possible to reduce the cost by setting it to 110 or less. Especially, when the area of the lower surface of the base plate 7 is 100, the area of one side of the mat 13 is more preferably set in the range of 70 to 110, and particularly preferably in the range of 80 to 110. .

  Moreover, the thickness of the mat 13 is not particularly limited, but 4 to 6 mm is preferable from the viewpoint of securing more excellent seismic performance.

  Further, examples of the planar shape of the mat 13 include a quadrangle, a circle, and an ellipse, but are not particularly limited to such a shape.

  Further, examples of the planar shape of the base plate 7 include a quadrangle, a circle, and an ellipse. However, the shape is not particularly limited to such a shape.

  The configuration of the height adjusting leg metal fitting 1 of the present invention is not particularly limited to that of the above-described embodiment, and any design change is within the scope of the claims, as long as it does not depart from the spirit. Is also acceptable.

It is a front view which shows the leg bracket for height adjustment which concerns on 1st Embodiment of this invention. It is a top view which similarly shows the leg metal fitting for height adjustment. It is a disassembled perspective view which similarly shows the leg bracket for height adjustment. It is sectional drawing in the use condition of the AA line in FIG. It is an expanded sectional view which shows the screwing part which fixes a base to a base board. It is a front view which shows the leg bracket for height adjustment which concerns on 2nd Embodiment of this invention. It is a top view which similarly shows the leg metal fitting for height adjustment. It is sectional drawing in the use condition of the XX line in FIG. It is a front view which shows the leg bracket for height adjustment which concerns on 3rd Embodiment of this invention. It is a top view which similarly shows the leg metal fitting for height adjustment. It is sectional drawing in the use condition of the YY line in FIG. It is a perspective view from the lower surface side which shows the modification of the arrangement state of the mat | matte with respect to the lower surface of a base board. It is a front view which shows the leg metal fitting for height adjustment which concerns on 4th Embodiment of this invention. It is a top view which similarly shows the leg metal fitting for height adjustment. It is a disassembled perspective view which similarly shows the leg bracket for height adjustment. It is sectional drawing in the use condition of the BB line in FIG. It is an example of the conventional metal fitting for height adjustment.

DESCRIPTION OF SYMBOLS 1 ... Height adjusting leg metal fitting 2 ... Bolt shaft 3, 90 ... Base 4 ... Sitting part 5, 51 ... Retaining part 7 ... Base plate 8 ... Screw hole 8a ... Cylindrical part 9 ... Screw insertion hole 10 ... Screw 13 ... Mat 31 ... Bolt insertion hole 71 ... Edge frame part 72 ... Edge frame part 80 ... Welding part 92 ... Dome part 100 ... Base fixing member

Claims (8)

A bolt shaft with a male thread;
A dome-shaped base provided with a bolt insertion hole through which the bolt shaft is rotatably inserted at the top;
A seat having a diameter larger than that of the bolt insertion hole provided on the bolt shaft so as to rotate integrally with the bolt shaft on the upper side of the bolt insertion hole;
Provided at the lower end of the bolt shaft in a state of projecting to the lower side of the bolt insertion hole, and a retaining portion having a larger diameter than the bolt insertion hole;
A base plate fixed to the lower surface of the pedestal;
A mat mated to the lower surface of the base plate, the upper and lower surfaces having adhesiveness , and
A screw insertion hole is provided in the peripheral portion of the pedestal, a screw hole is provided in the base plate, and a cylindrical portion protrudes upward from the peripheral portion of the screw hole on the upper surface of the base plate, The cylindrical portion of the base plate is arranged in a state of being inserted into the screw insertion hole of the pedestal, and the screw is inserted into the screw insertion hole of the pedestal and screwed into the screw hole of the base plate. the height adjustment foot metal fitting the base plate to the lower surface of the pedestal is characterized that you have been fixed. A bolt shaft with a male thread;
A dome-shaped base provided with a bolt insertion hole through which the bolt shaft is rotatably inserted at the top;
A seat having a diameter larger than that of the bolt insertion hole provided on the bolt shaft so as to rotate integrally with the bolt shaft on the upper side of the bolt insertion hole;
Provided at the lower end of the bolt shaft in a state of projecting to the lower side of the bolt insertion hole, and a retaining portion having a larger diameter than the bolt insertion hole;
A base plate fixed to the lower surface of the pedestal;
A mat mated to the lower surface of the base plate, the upper and lower surfaces having adhesiveness, and
The height adjusting leg, wherein the base plate is fixed to the lower surface of the pedestal by joining the pedestal and the base plate at a plurality of welds formed by spot welding. Hardware. An edge frame projecting downward is provided on the peripheral edge of the base plate,
The mat is disposed so that a part of the mat in the thickness direction is fitted in a recessed space surrounded by the edge frame portion on the lower surface side of the base plate, and is superimposed on the lower surface of the base plate. The height-adjusting leg bracket according to claim 1 or 2 . An edge frame that protrudes downward is provided on the periphery of the pedestal,
The base plate is disposed in a recessed space surrounded by the edge frame portion on the lower surface side of the pedestal,
The mat is disposed so that a part of the mat in the thickness direction is fitted in a recessed space surrounded by the edge frame portion on the lower surface side of the base plate, and is superimposed on the lower surface of the base plate. The height-adjusting leg bracket according to claim 1 or 2 . A bolt shaft with a male thread;
A dome-shaped base provided with a bolt insertion hole through which the bolt shaft is rotatably inserted at the top;
A seat having a diameter larger than that of the bolt insertion hole provided on the bolt shaft so as to rotate integrally with the bolt shaft on the upper side of the bolt insertion hole;
Provided at the lower end of the bolt shaft in a state of projecting to the lower side of the bolt insertion hole, and a retaining portion having a larger diameter than the bolt insertion hole;
A base plate disposed on the lower surface side of the pedestal;
A pedestal fixing member fixed by sandwiching the pedestal between the base plate and being fixed to the upper surface of the base plate in contact with the outer peripheral surface of the dome portion of the pedestal from above;
A height-adjustable leg bracket comprising: a mat that is superposed on the lower surface of the base plate and has adhesiveness on both upper and lower surfaces. A screw insertion hole is provided at an edge of the pedestal fixing member, a screw hole is provided in the base plate, and a cylindrical portion is integrally projected upward from a peripheral portion of the screw hole on the upper surface of the base plate. The cylindrical portion of the base plate is disposed in a state of being inserted into the screw insertion hole of the pedestal fixing member, and the screw is inserted into the screw insertion hole of the pedestal fixing member and screwed into the screw hole of the base plate The height adjusting leg bracket according to claim 5 , wherein the pedestal is sandwiched and fixed between the pedestal fixing member and the base plate by being tightened. The height adjusting leg bracket according to any one of claims 1 to 6 , wherein the mat is made of urethane elastomer. The height adjusting leg bracket according to any one of claims 1 to 7 , wherein an area of one side of the mat is set in a range of 80 to 110 when an area of a lower surface of the base plate is 100. .

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