Dolly

Abstract

To enable dollies to be stacked by setting positions on the dollies.SOLUTION: A rectangular frame body 6 is formed by connecting a longitudinal member 4 and a horizontal member 5 to a corner member 3 of a square, and a caster wheel 7 is supported on the inner surface side of a corner portion of the frame body 6. A guide member 8 is attached on the outer side of the corner portion to guide the placement position of a cargo C to be placed on the frame body 6. The corner member 3 integrally forms a longitudinal connection portion 3a connected to the longitudinal member 4, a horizontal connection portion 3b connected to the horizontal member 5 perpendicular to the longitudinal member 4, and a support portion 3c supporting the caster wheel 7 inside an intersection portion between the longitudinal connection portion 3a and the horizontal connection portion 3b. An attachment portion 3d to which the guide member 8 is attached above the lower surface and a recessed portion 3e set back one step from the attachment portion 3d are formed on the outer surface of the corner member 3. A stacking reception portion 8A facing the recessed portion 3e of the corner member 3 of a dolly A stacked above another dolly A with a gap therebetween and supporting a lower end of the guide member 8 is formed on an upper portion of the guide member 8.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a cart for transporting an object, which can be stacked and stored when not in use. [Background technology]

[0002] Patent Document 1 describes a trolley for moving heavy objects such as containers for material warehouses and setting them in place. The trolley body is composed of two divided trolley bodies separated by dividing it in two, and each divided trolley body is a frame trolley with a rectangular planar shape made up of four peripheral frame members and internal vertical and horizontal frame members, with corner plates provided at the four inner corners and wheels attached to the underside of these corner plates.When in use, the adjacent frame members of the two frame trolleys are fastened together with bolts and nuts, and heavy objects are placed on the top surfaces of the frame members of the two frame trolleys, and when not in use, the frame trolleys are stacked and stored (abstract).Stopper members made of angle iron are attached to the four corners of the outer peripheral frame member of the frame trolley, and are designed to engage the corners of the container to be placed on them. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3129349 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned conventional technology, when a container is placed on the trolley body, its position can be set using a stopper member, but when unused trolleys are stacked on the trolley body, the wheels simply rest on the top surface of the corner plate, making it difficult to set the position of the stacked trolleys.

[0005] An object of the present invention is to provide a bogie that can solve the problems of the prior art.

[0006] SUMMARY OF THE INVENTION An object of the present invention is to provide a cart that allows not only the position of an object to be placed on it to be set, but also the position of a stacking cart to be set. [Means for solving the problem]

[0007] The specific means for solving the problem in the present invention is a cart that forms a rectangular frame body 6 by connecting vertical members 4 and horizontal members 5 to square corner members 3, supports wheels 7 on the inner side of the corners of the frame body 6, and is equipped with guide members 8 on the outer side of the corners to guide the placement position of the transported item C to be placed on the frame body 6, The lower end of the guide member 8 is attached to the outer surface of the corner member 3 above the lower surface of the corner member 3, and the upper part of the guide member 8 is formed with a stacking support portion 8A that faces the lower part of the corner member 3 of the cart A to be stacked on the cart A and supports the lower end of the guide member 8.

[0008] Furthermore, the specific means for solving the problems in the present invention is a cart that forms a rectangular frame body 6 by connecting vertical members 4 and horizontal members 5 to square corner members 3, supports caster wheels 7 on the inner side of the corners of the frame body 6, and is equipped with guide members 8 on the outer side of the corners to guide the placement position of the transported item C to be placed on the frame body 6, The corner member 3 is integrally formed with a vertical connecting portion 3a that connects to the vertical member 4, a horizontal connecting portion 3b that connects to the horizontal member 5 that is perpendicular to the vertical member 4, and a support portion 3c that supports the caster wheel 7 inside the intersection of the vertical connecting portion 3a and the horizontal connecting portion 3b, The outer surface of the corner member 3 is formed with a mounting portion 3d above the lower surface to which the guide member 8 is attached, and a recessed portion 3e that is one step back from the mounting portion 3d. A stacking receiving portion 8A is formed on the upper portion of the guide member 8, facing the cutout recess 3e of the corner member 3 of the cart A to be stacked on the cart A via a gap and receiving the lower end of the guide member 8. [Effects of the Invention]

[0009] According to the present invention, by forming a stacking receiving portion on the guide member that guides the placement position of the transported article, it is possible to receive the carts to be stacked on the cart, and the position of the stacked carts can be set. do.

[0010] Furthermore, according to the present invention, by attaching a guide member to the corner member and forming a stacking support portion on the top of this guide member, it is possible to support the carts to be stacked on top of the cart, and by forming a cut-out recess 3e on the outer surface of the corner member 3, it is possible to easily stack the carts and set the position of the stacked carts. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view of a dolly when stacked, showing an embodiment of the present invention. [Figure 2] FIG. [Figure 3] FIG. 2 is a side view of the cart when an article is placed on it. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] FIG. 6 is a cross-sectional view taken along line XX in FIG. 5. [Figure 7] FIG. [Figure 8] FIG. [Figure 9] FIG. 10 is a perspective view of the corner member as seen from the inside of the corner portion. [Figure 10] FIG. 2 is a perspective view of the corner member as seen from the outside of the corner portion. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0013] In Figures 1 to 10, the trolley A has a rectangular frame body 6 formed by connecting vertical members 4 and horizontal members 5 to square corner members 3, and supports caster wheels 7 on the inner side of the corners of the frame body 6, and is equipped with guide members 8 on the outer side of the corners to guide the placement position of the transported item C to be placed on the frame body 6.

[0014] As shown in Figure 3, this trolley A is used to place transported items C, such as plastic shelves, on a frame 6, and to transport multiple stacked items C.When not in use, as shown in Figures 1 and 2, other trolleys A are stored by stacking them vertically on the lowest frame 6 as the second and third tiers.

[0015] The bogie A has a vertically long rectangular frame body 6 formed by connecting two vertical members 4 and two horizontal members 5, and can be configured in any rectangular shape such as a horizontally long rectangle or a square. The corner members 3 that connect the vertical members 4 and horizontal members 5 are the key to the connection of the frame body 6, and the corner members 3 are formed from strong moldings with openings that penetrate vertically.

[0016] In other words, the corner member 3 is formed as a long section of aluminum extrusion (or drawing) molding with holes and grooves that run through it in the vertical direction, and this long section is then cut to a specific size, making it strong and inexpensive.

[0017] This corner member 3 is integrally formed with a vertical connecting portion 3a that is U-shaped in plan view and connects to the vertical member 4, a horizontal connecting portion 3b that is U-shaped in plan view and connects to the horizontal member 5 that is perpendicular to the vertical member 4, and a support portion 3c that is approximately cylindrical and supports the caster wheel 7 (wheel) inside the intersection of the vertical connecting portion 3a and the horizontal connecting portion 3b.

[0018] The vertical members 4 are made of square pipe material, and the U-shaped vertical connecting parts 3a sandwich the vertical members 4 from the inside and outside of the frame, and are connected by two bolts 18 that pass through both. The horizontal members 5 are also made of square pipe material, and are sandwiched by the U-shaped horizontal connecting parts 3b from the inside and outside of the frame, and are connected by two bolts 18 that pass through both.

[0019] The support portion 3c of the corner member 3 is a substantially cylindrical shape having a through-hole 3f that penetrates in the vertical direction, and is formed integrally with the vertical connecting portion 3a and the horizontal connecting portion 3b. The space within the vertical connecting portion 3a, the space within the horizontal connecting portion 3b, and the space between the vertical connecting portion 3a and the horizontal connecting portion 3b are spaces (openings) that penetrate in the vertical direction, just like the through-hole 3f, and therefore the corner member 3 is formed from a molded member with openings that penetrate in the vertical direction.

[0020] A screw member 11 supporting the stay support shaft 7a of the caster wheel 7 is inserted into the lower part of the through hole 3f, and a screw member 14 for a mounting screw 13 for attaching a wheel support plate 12 to be placed on the upper surface of the corner member 3 is inserted into the upper part of the through hole 3f.

[0021] The caster wheels 7 are arranged not only at the four corners of the frame body 6 but also at the longitudinal center of the long vertical member 4. In addition, the caster wheels 7 are of a type in which the stay rotates around the stay support shaft 7a. However, it may be equipped with a brake device, or the stay may be a fixed wheel in which the wheel body rotates only forward and backward without rotating.

[0022] The wheel receiving plate 12 is provided to cover the upper surface of the corner member 3, and can be contacted by the caster wheels 7 of another stacked cart A, and mainly supports the load when an excessive load is applied to the stacked cart by the caster wheels 7 of the stacked cart coming into contact with it.

[0023] 1 to 10, the outer surface of the corner member 3 essentially forms the outer corner surface of the frame body 6, and is provided with a mounting portion 3d for mounting the guide member 8 and a recessed portion 3e that is one step back from the mounting portion 3d. The mounting portion 3d is divided into two in the horizontal direction and is located on both sides of the recessed portion 3e.

[0024] The guide member 8 is formed from a plate material with an outwardly protruding mountain shape in a plan view, and is fixed to a mounting portion 3d, which is divided into two on both sides in the width direction and straddles the cutout recess 3e, via screws 19. The lower end of the guide member 8 is located above the lower surface of the corner member 3, at a height halfway between the top and bottom, and the upper portion protrudes above the top surface of the corner member 3, so that it can abut against the corners of the transported item C, such as a plastic shelf, placed on the frame body 6, and by this abutment, the position where the transported item C is placed on the frame body 6 is set.

[0025] A stacking receiving portion 8A is integrally formed on the top of this guide member 8. The stacking receiving portion 8A extends the mountain-shaped plate material that forms the guide member 8 in a tapered shape upward, and its upper portion is formed to be narrower than the cut-out recess 3e, so that the lower end of the guide member 8 of the stacking cart is placed on its upper end.

[0026] The stacking receiving portion 8A faces the corner member 3 of the stacking cart when it is being stacked, but because a recess 3e is formed in the corner member 3 of the cart A to be stacked, the recessed portion of the recess 3e forms a gap, and the two parts face each other through this gap, making it easy to stack the carts A.

[0027] The recessed portion 3e on the outer surface of the corner member 3 can also be formed by outwardly bulging the mounting portions 3d on both sides thereof.

[0028] Furthermore, since the corner member 3 is formed by extrusion (or drawing) molding of aluminum, the recess 3e is formed on the outer surface of the corner member 3 from the lower end to the upper end, but when die-cast molding is used, it is sufficient to form the recess 3e on the outer surface of the corner member 3 from the lower end to the middle part (the lower end position of the guide member 8).

[0029] The trolley A is constructed by placing square corner members 3 and connecting vertical members 4 and horizontal members 5 to each corner member 3 to form a rectangular frame body 6, attaching caster wheels 7 to the lower part of the support parts 3c of the corner members 3 at the four corners of the frame body 6 and attaching wheel receiving plates 12 to the upper part of the support parts 3c, and further attaching guide members 8 having stacking receiving parts 8A to the outer surface of each corner member 3.

[0030] As shown in Figure 3, the cart A configured in this manner can place an item C, such as a plastic shelf, on the frame 6, and the corners of the item C will abut against the guide members 8, so that the item C is properly positioned and transported in that state.

[0031] When cart A is not being used to transport item C, multiple carts A are stacked vertically for storage. Figures 1, 2, and 7 show the state in which carts A are stacked on top of the bottom cart A, with the top cart A stacked on top of the bottom cart A, and so on up to several levels.

[0032] A guide member 8 is attached to each corner member 3 of the lower trolley A, and a stacking receiving portion 8A is provided on the upper part of the guide member 8, so that the upper trolley A descends with the outer surface of the corner member 3 guided by the inner surface of the stacking receiving portion 8A of the lower trolley A, and is received by the lower end of the guide member 8 of the upper trolley A abutting against the upper end of the stacking receiving portion 8A of the lower trolley A.

[0033] When the outer surface of the corner member 3 of the upper trolley A is guided onto the inner surface of the stacking support portion 8A of the lower trolley A, the stacking support portion 8A is narrow and a wide recess 3e is formed on the outer surface of the corner member 3 whose inner surface faces the stacking support portion 8A, so that a gap corresponding to the depth of the recess 3e exists between the inner surface of the stacking support portion 8A and the outer surface of the corner member 3, allowing easy relative movement and engagement between the two.

[0034] In the above-described embodiment, the trolley A is a trolley having a rectangular frame body 6 formed by connecting vertical members 4 and horizontal members 5 to square corner members 3, wheels 7 supported on the inner side of the corners of the frame body 6, and guide members 8 attached to the outer side of the corners to guide the placement position of the transported item C to be placed on the frame body 6, the lower end of the guide member 8 being attached to the outer surface of the corner member 3 above the lower surface of the corner member 3, and the upper part of the guide member 8 is formed with a stacking support portion 8A that faces the lower part of the corner member 3 of the trolley A to be stacked on the trolley A and supports the lower end of the guide member 8.

[0035] With this configuration, the guide member 8 that guides the placement position of the transported item C has a stacking receiving portion 8A on its upper part, so it can support the carts A to be stacked on top of each other, and the position of the stacked carts A can be set.

[0036] In addition, in the above embodiment, the trolley A is a trolley in which vertical members 4 and horizontal members 5 are connected to square corner members 3 to form a rectangular frame body 6, caster wheels 7 are supported on the inner side of the corners of the frame body 6, and guide members 8 are attached to the outer side of the corners to guide the placement position of the transported item C to be placed on the frame body 6, and the corner members 3 are integrally formed with a vertical connecting portion 3a that connects to the vertical member 4, a horizontal connecting portion 3b that connects to the horizontal member 5 that is perpendicular to the vertical member 4, and a support portion 3c that supports the caster wheels 7 inside the intersection of the vertical connecting portion 3a and the horizontal connecting portion 3b, and the outer surface of the corner member 3 is formed with an attachment portion 3d above the underside to which the guide member 8 is attached, and a recessed portion 3e that is one step back from this attachment portion 3d, and the upper part of the guide member 8 is formed with a stacking support portion 8A that faces the recessed portion 3e of the corner member 3 of the trolley A to be stacked on top of the trolley A via a gap and supports the lower end of the guide member 8.

[0037] With this configuration, by attaching a guide member 8 to the corner member 3 and forming a stacking support portion 8A on the top of this guide member 8, it is possible to support the trolleys A to be stacked on top of each other, and by forming a recess 3e on the outer surface of the corner member 3, it is possible to easily stack the trolleys A and set the position of the stacked trolleys A.

[0038] Furthermore, in the above embodiment, the guide member 8 of the trolley A is formed from a mountain-shaped plate material that protrudes outward when viewed from above, and the upper part of this plate material is formed narrower than the recess 3e to form a stacking support portion 8A.

[0039] With this configuration, it is possible to easily form a stacking receiving portion 8A on the upper portion of the guide member 8, which can avoid interference with the corner member 3 of the cart A to be stacked.

[0040] Furthermore, in the above embodiment, the support portion 3c of the corner member 3 of the trolley A is formed in an approximately cylindrical shape with a through hole 3f that penetrates in the vertical direction, and a screw member 11 that supports the stay support shaft 7a of the caster wheel 7 is inserted into the lower part of the through hole 3f, and a screw member 14 for a mounting screw 13 that attaches a wheel support plate 12 that is placed on the upper surface of the corner member 3 is inserted into the upper part of the through hole 3f.

[0041] This configuration allows the corner members 3, which connect the vertical members 4 and the horizontal members 5 and to which the guide members 8, the caster wheels 7 and the wheel receiving plates 12 are attached, to be formed as a single, strong unit.

[0042] The present invention is not limited to the above-described embodiment, and the shapes, configurations, and combinations of the components can be changed.

[0043] For example, instead of forming the recessed portion 3e on the outer surface of the corner member 3, the inner surface of the stacking receiving portion 8A may be formed so as to be positioned outside the inner surface of the guide member 8.

[0044] In addition, the wheel receiving plate 12 can be omitted, and the caster wheels 7 of the stacked carts A stacked on top of the cart A can be left floating without touching the corner members 3.

[0045] Furthermore, the guide member 8 having the stacking receiving portion 8A may be attached to the corner member 3 with fasteners such as screws 19 or rivets, or may be welded, and if die-cast molded, it may be molded integrally with the corner member 3. [Explanation of symbols]

[0046] 3 Corner parts 3a Vertical connection part 3b Horizontal connection 3c Support part 3d mounting part 3e Recessed hole 3f through hole 4 Vertical members 5 Crosspiece 6 Frame 7 Caster wheels (wheels) 7a Stay support shaft 8 Guide member 8A Stacking support 11 Screw member 12 Wheel support plate 13 Mounting screws 14 Screw member 18 volts 19 screws A cart C. Transported items

Claims

1. The cart has a rectangular frame (6) formed by connecting vertical members (4) and horizontal members (5) to four corner members (3), supports wheels (7) on the inner side of the corners of the frame (6), and is equipped with guide members (8) on the outer side of the corners for guiding the placement position of an object (C) to be transported on the frame (6), The lower end of the guide member (8) is attached to the outer surface of the corner member (3) above the lower surface of the corner member (3), and a stacking support portion (8A) is formed on the upper portion of the guide member (8) which faces the lower portion of the corner member (3) of the trolley (A) to be stacked on the trolley (A) and supports the lower end of the guide member (8).

2. The cart has a rectangular frame (6) formed by connecting vertical members (4) and horizontal members (5) to four corner members (3), supports caster wheels (7) on the inner side of the corners of the frame (6), and is equipped with guide members (8) on the outer side of the corners for guiding the placement position of an item (C) to be placed on the frame (6), The corner member (3) is integrally formed with a vertical connecting portion (3a) that connects to the vertical member (4), a horizontal connecting portion (3b) that connects to the horizontal member (5) that is perpendicular to the vertical member (4), and a support portion (3c) that supports the caster wheel (7) inside the intersection of the vertical connecting portion (3a) and the horizontal connecting portion (3b); The outer surface of the corner member (3) is formed with a mounting portion (3d) for mounting a guide member (8) above the lower surface, and a recessed portion (3e) one step back from the mounting portion (3d). The trolley is characterized in that a stacking support portion (8A) is formed on the upper portion of the guide member (8), which faces a recess (3e) of a corner member (3) of the trolley (A) to be stacked on the trolley (A) via a gap and supports the lower end of the guide member (8).

3. The trolley described in claim 2, characterized in that the guide member (8) is formed from a plate material having an outwardly protruding mountain shape when viewed from above, and the upper part of this plate material is formed narrower than the cut-out recess (3e) to form a stacking support portion (8A).

4. The trolley according to claim 2, characterized in that the support portion (3c) of the corner member (3) is formed in an approximately cylindrical shape having a through hole (3f) penetrating in the vertical direction, a screw member (11) for supporting the stay support shaft (7a) of the caster wheel (7) is inserted into the lower part of the through hole (3f), and a screw member (14) for a mounting screw (13) for attaching a wheel receiving plate (12) to be placed on the upper surface of the corner member (3) is inserted into the upper part of the through hole (3f).

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