JP4310630B2 - Stackable carts - Google Patents

Description

  The present invention relates to a load carrying cart that can be folded in a state where the side panel is foldable on a cart body and the side panel is assembled and an empty stack in a state in which the side panel is folded. Is.

  As described above, for example, as described in Patent Document 1, a loading platform can be used to perform actual stacking in a state where the side panels are assembled as described above and empty stacking in a state where the side panels are folded. The side panels erected around the platform are foldable on the loading platform, and stacking brackets are provided near the four corners of the loading platform. Each loading bracket has a loading platform step in the side panel assembly state. An actual stacking engagement portion that engages with the upper side of the side panel of the lower platform during loading is provided at the lower end, and is an empty space that supports each stacking bracket of the upper platform when loading the platform in the folded state of the side panel. 2. Description of the Related Art A stackable load pallet with a stacking support provided at the upper end is known.

Loads that can be stacked by attaching wheels to the lower four corners of the loading platform in the above-mentioned stackable box pallet for loading, with the lower ends of the loading brackets floating from the floor. Although it can be conveniently used as a transport carriage, in the configuration described in Patent Document 1 above, each stacking bracket is fixed to the side of the cargo bed by welding.
JP 2000-53132 A

  When the loadable box pallet capable of stacking described in Patent Document 1 is used as a cart, the stacking bracket projecting from the side of the cart body acts like a bumper of the cart. , It frequently collides with other objects and deforms, and there is a risk of hindering the expected stacking function, but because each stacking bracket is fixed to the main body of the carriage by welding as described above, There is a problem with maintainability such as replacement. Also, when painting finish, it will be supplied to the painting line after welding the brackets for stacking, but the painting line of this kind of cargo transportation carriage is the main body of the carriage before the wheel to be bolted up, Since it is configured to paint in the state of flat panel members, such as each side panel before being attached to this bogie body, there is a stacking bracket that protrudes in both the vertical direction from the side of the flat bogie body. The fixed trolley body with the bulk stacking bracket (wheels removed) cannot be supplied as it is to the conventional painting line.

The object of the present invention is to provide a load-carrying cart that can solve the conventional problems as described above, and its means is shown with reference numerals in the embodiments described later. Side panels (gate panel 2, both side panels 3, and back panel 4) standing around the bogie body 1 are configured to be foldable on the bogie body 1, and there are steps near the four corners of the bogie body 1. Stacking brackets 15 are detachably attached , and each stacking bracket 15 is engaged with the upper side of the side panels (both side panels 3) of the lower cart when the carts are stacked in the side panel assembled state. A stacking portion provided with a stacking engagement portion 39 at the lower end, and a stacking support portion 37 provided at the upper end for supporting each stacking bracket 15 of the upper cart when the cart is stacked in the side panel folded state. Possible load carrier A is, the stacking bracket 15 includes a vertical column portion 31 with the empty stacking supporting portion 37 at the upper end, a horizontal projecting portion 32 provided continuously sideways from the lower end of the vertical bar portion 31 The mounting plate 20a to the vertical mounting holes 25a to which the horizontal overhanging portions 32 of the stacking brackets 15 are attached are located in the vicinity of the four corners of the bottom portion of the cart body 1. 20d is fixed, and on the mounting plates 20a to 20d, there is a rising plate portion 28 that has a horizontal mounting hole 29a that rises vertically outside the cart body 1 and that attaches the vertical column portion 31 of the stacking bracket 15 to the mounting plate 20a to 20d. Each of the stacking brackets 15 is connected to each of the mounting plates 20a to 20d by a vertical bolt 41 and a horizontal bolt 42 so as to be detachable .

  When carrying out the present invention having the above-described configuration, as described in claim 2, wheel mounting holes 24 a and stacking bracket mounting holes 25 a are provided vertically at positions near the four corners of the bottom of the carriage body 1. The mounting plates 20a to 20d are fixed, and the wheels 13 and 14 and the stacking bracket 15 can be detachably attached to the mounting plates 20a to 20d with vertical bolts 27 and 41, respectively.

Further, as described in claim 3 , each of the stacking brackets 15 has a side surface shape including a vertical column portion 31 and a horizontal projecting portion 32 provided in a lateral direction from the lower end of the vertical column portion 31. A plate-shaped empty stacking support portion 37 parallel to the side of the carriage main body 1 to which the bracket 15 is attached is projected at the upper end of the vertical column portion 31 so as to project from the horizontal column. At the lower end of the projecting portion 32, there is provided a groove-shaped actual stacking engagement portion 39 that is open on the lower side parallel to the empty plate stacking plate support portion 37, and the upper side when the cart is stacked in the side panel folded state. The actual stacking groove-shaped engaging portion 39 of the carriage can be configured to be fitted around the empty stacking plate-like support portion 37 of the lower carriage.

Further, when the configuration according to the third aspect is employed, the end of the empty stacking plate-like support portion 37 of the stacking bracket 15 is externally fitted to the end as described in the fourth aspect. A protruding piece 40 that restricts the relative movement of the actual stacking groove engaging portion 39 in the direction along the plate-like support portion 37 can be provided in a protruding manner.

According to the loadable carriage that can be stacked according to the present invention having the above-described configuration, when the stacking bracket that acts as a bumper of the carriage is deformed or damaged due to a collision with another object, it can be easily removed from the carriage body. It can be removed and replaced easily, improving maintainability. In addition, since the wheels are bolted up and can be removed, the flat body of the carriage with the wheels and the stacking brackets not yet attached when supplying to the painting line in the manufacturing process. Only can be supplied to the painting line, and can be easily manufactured using the conventional painting line, and its economic effect is great. Furthermore, according to the present invention, each stacking bracket can be attached with a vertical bolt and a horizontal bolt, so that the attachment strength can be sufficiently increased while being detachable. In addition, since the rising plate portion provided with the horizontal mounting hole is continuously provided on the mounting plate provided with the vertical mounting hole, the horizontal mounting hole is provided in the structural member of the cart body which is not so thick. In comparison, the stacking bracket can be securely attached regardless of the attachment position accuracy of the attachment plate with respect to the carriage main body, and the strength of the carriage main body is not lowered due to the mounting hole processing.

  In addition, according to the structure of Claim 2, since it is possible to attach both one wheel and one stacking bracket to a single mounting plate attached to the bottom of the cart body with vertical bolts, Compared to the case where the wheel mounting plate and the mounting bracket mounting plate must be mounted at the bottom four corners of the bogie body, the number of mounting steps for the parts is reduced and costs are reduced. Can do.

Moreover, according to the structure of Claim 3 , empty stacking in the side panel folding state can be performed using the actual stacking groove-shaped engaging portion provided at the lower end of the stacking bracket as it is. In addition to the actual stacking groove-shaped engaging portion, an engaging portion that engages with the empty stacking support portion at the upper end of the stacking bracket of the lower carriage at the lower end of the stacking bracket is provided at the lower end of the stacking bracket. Compared with the case of providing (refer to patent document 1), the structure of the bracket for stacking becomes simple and can be implemented at low cost. In this case, according to the structure of Claim 4 , the stability at the time of the empty stacking in the side panel folding state improves, and it can stack safely.

  A specific embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 to 3, reference numeral 1 denotes a cart body having a rectangular planar shape. The side panel 3 and the back panel 4 are erected as side panels. These panels 2-4 can be folded so that it may overlap on the trolley | bogie main body 1 as shown in FIG.4 and FIG.5. More specifically, the gate panel 2 includes a lower gate 6 whose horizontal lower side is connected to the cart body 1 by a coil hinge 5 and a coil hinge 7 on the horizontal upper side of the lower gate 6. The upper and lower gates 8 are connected so as to be openable and closable, and locking means 9 for connecting to both side panels 3 are attached to both vertical sides of the gates 6 and 8. The back panel 4 has a horizontal lower side bent inwardly connected to the carriage body 1 by a hinge coil 10 so that it can be raised and lowered. One vertical side of the side panel 3 is hinge coil 11 on both vertical sides of the back panel 4. , 12 are foldably connected.

  A free wheel 13 is attached to the left and right two places on the lower side of the front end of the longitudinal direction on the lower side of the cart body 1, and a fixed wheel 14 is attached to the left and right two places on the rear end side of the longitudinal direction on the lower side of the cart body 1. ing. Further, a stacking bracket 15 is attached to each of the left and right ends of the front and rear ends of the cart body 1, and a traction tool 16 is attached to the front end of the cart body 1.

  Hereinafter, the structure will be described in detail. As shown in FIG. 6, the carriage main body 1 is composed of a plurality of longitudinal groove members fixedly installed between the lateral groove members 17 at the front and rear ends and the lateral groove members 17. 18 and a mesh panel material 19 fixedly laid on these channel members, and mounting plates 20a to 20d are fixedly attached to positions near the four corners on the lower side thereof. Reference numeral 21 denotes a pulling connecting pin projecting upward at the center position of the rear end of the carriage body 1.

  Each of the mounting plates 20a to 20d has a rectangular shape that is long in the same direction as the longitudinal direction of the cart body 1, and as shown in FIG. A bent piece 22 is provided in a bent manner, and an upward bent piece 23 that rises upward away from the longitudinal groove member 18 is provided on the inner side parallel to the longitudinal direction. 17 and 18 are fixed by welding or the like. On the upper surface of each mounting plate 20a, 20b, four nuts 24 for attaching the wheels and four nuts 25 for attaching the stacking brackets are fixed. Incidentally, the wheel mounting nuts 24 of the pair of left and right mounting plates 20a and 20b for mounting the free wheel 13 are arranged so as to be positioned at substantially square corners, and the pair of left and right mounting plates on the rear end side. The wheel mounting nuts 24 of 20c and 20d are for mounting the fixed wheel 14, and are disposed so as to be positioned at each corner of a rectangle that is long in the front-rear direction.

  As shown in FIG. 7, the nuts 24 and 25 on the mounting plates 20a to 20d constitute vertical mounting holes 24a and 25a. As shown in FIG. 10, the mounting of the wheels 13 and 14 is performed. The seat plate 26 is detachably attached to the lower side of the mounting plates 20a to 20d by vertical bolts 27 that pass through the mounting holes 24a and are screwed to the wheel mounting nuts 24.

  As shown in FIG. 7, the upward bent pieces 22 of the mounting plates 20 a to 20 d are each provided with a rising plate portion 28 that rises vertically by welding of another member or the like, and is fixed to the outside of the upper end of the rising plate portion 28. The pair of left and right nuts 29 constitute a pair of left and right horizontal mounting holes 29a at a position slightly higher than the upper surface of the carriage body 1 (the upper surface of the mesh panel material 19). 30 is a reinforcing material using an angle material, which is fixed to the left and right groove member 17 on the inner side of the rising plate portion 28, and is used as a left and right wire member of the mesh panel member 19 projecting outside the left and right groove member 17. Covered.

  As shown in FIGS. 8 and 9, each of the stacking brackets 15 includes a vertical column portion 31 using a wide groove shape material that is used in a direction in which the inside opens, and an inner side from the lower end of the vertical column portion 31. And a horizontal projecting portion 32 projecting horizontally. The horizontal overhanging portion 32 is made of an L-shaped member in which a vertical plate portion is fixed to the vertical column portion 31, and a reinforcing vertical plate 32a is fixed to a lower entering corner. At the intermediate height position of the vertical column portion 31, a connecting plate 33 is fixedly attached so as to connect the left and right sides, and a pair of left and right horizontal mounting holes 34 are provided in the connecting plate 33. The horizontal overhanging portion 32 is provided with four vertical mounting holes 35.

  An angle member 36 is fixed to the upper end of the vertical column portion 31 of each stacking bracket 15, and a plate-like empty stacking support portion 37 extending in the left-right direction is formed by the vertical plate portion of the angle member 36. It is configured. Further, a groove member 38 having both side plates slightly widened in a letter C shape is fixed to the lower end of each stacking bracket 15 so that the lower side is open and fixed in a direction parallel to the angle member 36. 38 is a groove-shaped actual stacking engaging portion that is in parallel with the empty stacking plate-like support portion 37 and covers the position directly below both the empty stacking plate-like support portion 37 and the side panel 3. 39 is configured. In addition, in the left and right outer ends of the empty stacking plate-like support portions 37 (the outer ends in the left and right directions when the respective stacking brackets 15 are attached to positions near the four corners of the carriage body 1), A protruding piece 40 is fixedly provided.

  As shown in FIG. 10, each of the stacking brackets 15 configured as described above has the rising plate portion 28 of each of the mounting plates 20 a to 20 d on the cart body 1 side inside the connecting plate 33 of the vertical column portion 31. The horizontal overhanging portion 32 is arranged so as to overlap the lower side of each of the mounting plates 20a to 20 on the cart body 1 side, and the four mounting plates 20a to 20 from the four vertical mounting holes 35 of the horizontal overhanging portion 32 are arranged. The bolt 41 is screwed and fastened to the vertical mounting hole 25a (nut 25) in the vertical direction, and the bolt 42 is connected from the horizontal mounting hole 34 of the connecting plate 33 to the horizontal mounting hole 29a (nut 29) of the rising plate portion 28. A pair of left and right sides are attached to the front and rear ends of the carriage body 1 by screwing in the horizontal direction.

  The load carrying cart configured as described above can be freely moved on the floor surface using the free wheel 13 and the fixed wheel 14, and at this time, the pulling tool 16 at the front end of the cart body 1 is used. The tow truck can be pulled. In addition, by engaging the tip of the traction tool 16 of the rear load carrier truck with the connecting pin 21 at the time of towing the front cargo truck, a plurality of load carrier trucks are connected in a train shape, and the leading load carrier is connected. It is also possible to pull a plurality of cargo transport carts in a train shape with a cart. In addition, when this is not used, the traction tool 16 can be set up vertically and locked to the side panel 3 as shown by a solid line in FIGS.

  In the assembled state in which the panels 2 to 4 stand from the four sides of the cart body 1, the load carrying carts can be stacked. In this actual stacking, the actual stacking groove-shaped engaging portions 39 at the lower ends of the respective stacking brackets 15 of the upper load transport cart are fitted to positions near the left and right ends of the upper sides of the side panels 3 of the lower load transport cart. This is done by combining them. At this time, the wheels 13 and 14 of the upper cargo carriage enter the inside of the cargo storage space surrounded by the panels 2 to 4 of the lower cargo truck.

  When the load carrying cart is not used for carrying the load, the panels 2 to 4 can be folded so as to be stacked on the cart body 1 as described above. 4 and 5 can be stacked. That is, in the load carrying cart in the panel folded state, as shown in FIGS. 4 and 5, the uppermost panel folded from the empty stacking plate-like support portion 37 at the upper end of each stacking bracket 15, FIG. In the illustrated example, it is positioned sufficiently above the back panel 4, but each stacking bracket 15 of the upper cargo transport cart is connected to the empty stacking plate-like support portion 37 at the upper end of each stacking bracket 15. By fitting the bottom-stage actual stacking groove-shaped engaging portion 39 inside the protruding piece 40, empty stacking is performed. At this time, the wheels 13 and 14 of the upper cargo carriage are not in contact with the folded uppermost panel of the lower cargo carriage, ie, the back panel 4 in the illustrated example, but the folded uppermost back panel. 4 in the upper space.

  In the above-described empty stacking state, the protruding pieces 40 prevent the upper and lower cargo transport carts from moving relative to each other in the direction along the side panel 3, that is, the groove direction of the actual stacking groove-shaped engaging portion 39. be able to. Further, during empty stacking, the actual stacking groove-shaped engaging portion 39 at the lower end of each stacking bracket 15 of the upper load transport cart is used for empty stacking of the lower load transport cart in the outer region in the width direction. During actual stacking in a state where the panels 2 to 4 are assembled while being fitted to the plate-like support portion 37, the actual stacking groove-shaped engaging portion at the lower end of each stacking bracket 15 of the upper cargo transport cart 39 is fitted to the upper side of the side panel 3 of the lower cargo carrier cart in the inner region in the width direction.

  As is apparent from the description of the mounting method of each stacking bracket 15, the stacking bracket 15 can be easily and easily attached to the carriage main body 1 by attaching and detaching the bolts 41 and 42 in the event of replacement accompanying damage. It can be attached and detached. Similarly, the wheels 13 and 14 can be easily attached to and detached from the carriage body 1 by attaching and detaching the bolts 27. In the above embodiment, since the arrangement of the vertical mounting holes 24a (nuts 24) for mounting the wheels is different between the free wheel 13 and the fixed wheel 14, the mounting plate 20a for mounting the free wheel 13 and the stacking bracket 15 is provided. Two types of mounting plates 20c and 20d for mounting the fixed wheel 14 and the stacking bracket 15 are used, but vertical mounting holes for mounting the universal wheels 13 on all the mounting plates 20a to 20d. 24a (nut 24) and a vertical mounting hole 24a (nut 24) for mounting the fixed wheel 14 are arranged, and the mounting hole 24a (nut 24) is selected to select either the free wheel 13 or the fixed wheel 14. Alternatively, it can be configured to be attachable.

Moreover, in the said embodiment, although comprised so that both the wheel and the bracket 15 for stacking could be attached to one mounting plate 20a-20d, basically, the mounting plate for mounting of the stacking bracket 15 is used. it may be provided separately from the mounting attachment plate wheels and 20a to 20d, but it may also be the use of attaching directly to the wheels on the bottom surface of the carriage main body 1 without using the wheel mounting mounting plate.

It is a left view of a load conveyance trolley. It is a front view of a load conveyance trolley. It is a right view of a load conveyance trolley. It is a right view of the load conveyance trolley which shows an empty stacking state. It is a front view of the load conveyance trolley which shows an empty stacking state. It is a top view which shows a trolley | bogie main body. Fig. A is a plan view of the main part showing details of the mounting plate, Fig. B is a side view thereof, and Fig. C is a front view thereof. Fig. A is a side view of the bracket for stacking, and Fig. B is a front view of the bracket. Fig. A is a plan view of the stacking bracket, and Fig. B is a cross-sectional view taken along line XX of Fig. 8A. Fig. A is a partially longitudinal side view of the main part showing the mounting state of the wheels and the stacking bracket, and Fig. B is a cross-sectional plan view thereof.

Explanation of symbols

1 Bogie body 2-4 Side panel 13 Swivel wheel 14 Fixed wheel 15 Stacking brackets 20a-20d Mounting plates 24, 25, 29 Nuts 24a, 25a, 29a, 34, 35 Mounting holes 26 Wheel mounting seats 27, 41, 42 Bolt 28 Standing plate portion 31 of mounting plate Vertical column portion 32 of stacking bracket Horizontal extension portion 33 of stacking bracket Connecting plate 37 Plate-shaped support portion 39 for empty stacking Actual groove stacking engagement portion 40 Protruding piece

Claims (4)

Side panels that stand up around the cart body are foldable on the cart body, and stacking brackets are detachably attached near the four corners of the cart body. An actual stacking engaging portion that engages with the upper side of the side panel of the lower cart is provided at the lower end when the cart is stacked in the panel assembly state, and each stage of the upper cart is used when the cart is stacked in the side panel folded state. A stackable load transport carriage provided at the upper end with an empty stacking support portion for supporting the stacking bracket, wherein each stacking bracket is a vertical column provided with the empty stacking support portion at the upper end. And a horizontal projecting portion extending laterally from the lower end of the vertical column portion is L-shaped, and the horizontal position of the bracket for stacking is in the vicinity of the four corners of the bottom of the carriage body. Vertical orientation to attach overhang A mounting plate with a perforated hole is fixed, and the mounting plate is provided with a rising plate portion having a horizontal mounting hole that rises vertically outside the cart body and attaches the vertical column portion of the stacking bracket. Each stacking bracket is detachably attached to each mounting plate with a vertical bolt and a horizontal bolt, and can be stacked.   A mounting plate having a wheel mounting hole and a stacking bracket mounting hole in a vertical direction is fixed to a position near the four corners of the bottom of the carriage body, and the wheel and the stacking bracket are attached to each mounting plate. 2. The stackable load carrying cart according to claim 1, wherein the load carrying cart is detachably attached by a vertically oriented bolt. Each of the stacking brackets has an L-shaped side surface composed of a vertical column portion and a horizontal projecting portion that is provided laterally from the lower end of the vertical column portion. A plate-shaped empty stacking support portion parallel to the side of the carriage main body to which the bracket is attached is projected, and a lower end of the horizontal overhanging portion is parallel to the empty stacking plate support portion. A groove-shaped actual stacking engaging portion that is open on the lower side is provided, and when the carriage is stacked in the side panel folded state, the actual stacking groove-shaped engaging portion of the upper carriage is the empty stacking of the lower carriage. The load transport cart capable of stacking according to claim 1 or 2, wherein the cart is externally fitted to the plate-like support portion . At the end of the empty stacking plate-like support portion of the stacking bracket, the relative movement in the direction along the plate-like support portion of the actual stacking groove-shaped engaging portion fitted on the end is restricted. projecting piece is projected, stacking can load transport vehicle according to any one of claims 1 to 3.

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