JP2021109634A - Dolly - Google Patents

Abstract

To provide a dolly made less likely to cause a step on a support surface supporting a load.SOLUTION: A dolly 1 comprises a frame member 4 composing a base portion 2 for placing a load thereon, the base portion comprising: a plurality of side members 5 laterally extending and having beam portions 52 whose upper surfaces serve as side support surfaces 51; and a corner member 6 having a corner support surface 61 on an upper surface thereof, having on a lower side of the corner support surface 61 at least a hole or notch 62 into which an end of the beam portion 52 is inserted, and connecting the plurality of side members 5. The dolly 1 comprises a step filling member 7 for filling a step caused by a height difference between the side support surface 51 and the corner support surface 61. The step filling member 7 is placed on the side support surface 51, with the end of the beam portion 52 inserted into the hole portion or notch portion 62.SELECTED DRAWING: Figure 3

Description

The present invention relates to a trolley, and more particularly to a trolley having a plurality of side members and a corner member connecting the plurality of side members.

Conventionally, a trolley including a plurality of side members and a corner member connecting the plurality of side members is known (see, for example, Patent Document 1). The side members extend laterally and the upper surface serves as a loading surface for the load. Further, the corner member has a hole portion in which the upper surface serves as a mounting surface for the load and the end portion of the side member is inserted in the side surface.

In the dolly shown in Patent Document 1, the mounting surface of the side member is located below the mounting surface of the corner member, and the mounting surface is not coplanar and is between the mounting surfaces. A step was formed in. For this reason, there has been a problem that a step is formed, such as it is difficult to load the load horizontally and the load is caught on the step and is difficult to move.

Utility Model Registration No. 3189533 Gazette

The present invention has been invented in view of the above-mentioned conventional problems, and an object of the present invention is to provide a carriage in which a step is unlikely to occur on a support surface that supports a load.

In order to solve the above problems, the dolly of one form according to the present invention has a plurality of side members having a beam portion extending in the lateral direction and having an upper surface serving as a side supporting surface, and having a corner supporting surface on the upper surface, and the above-mentioned A pedestal for mounting a load by a corner member having at least a hole or a notch into which the end of the beam is inserted and connecting the plurality of side members on the lower side of the corner support surface. The frame member constituting the above is provided. The dolly includes a step-filling member for filling a step caused by a height difference between the side support surface and the corner support surface. The step-filling member is placed on the side support surface in a state where the end portion of the beam portion is inserted into the hole portion or the notch portion.

In the dolly according to the present invention, a step is unlikely to occur on the support surface that supports the load.

FIG. 1 is a perspective view of a dolly according to the first embodiment. FIG. 2A is a plan view of the dolly of the same. FIG. 2B is a side view of the dolly of the same. FIG. 2C is a front view of the dolly of the same. FIG. 3 is an exploded perspective view of the dolly of the above. FIG. 4A is a vertical cross-sectional view of a part of the frame member of the bogie of the same. FIG. 4B is a partial vertical cross-sectional view of a frame member with a step-filling member attached. FIG. 5A is a side view of the step-filling member of the same. FIG. 5B is a plan view of the step-filling member of the same. FIG. 5C is a front view of the step-filling member of the same. FIG. 6A is a plan view of the gap filling member of the bogie of the same. FIG. 6B is a side view of the gap filling member of the same. FIG. 6C is a bottom view of the gap filling member of the same. FIG. 7A is a perspective view of another example of the step filling member. FIG. 7B is a perspective view of the step-filling member of the same as above, as viewed from another angle. FIG. 8 is a perspective view of another example of the step filling member.

The present invention relates to a dolly. Hereinafter, the dolly according to the present invention will be described based on the embodiments shown in the accompanying drawings.

The dolly according to the embodiment will be described with reference to FIGS. 1 to 6C. As shown in FIGS. 1 to 2C, the trolley 1 includes a pedestal portion 2 and a caster portion 3. A load is placed on the upper surface of the base 2. As shown in FIG. 2A, the base portion 2 has a rectangular shape in a plan view, and one side is approximately 30 cm to 1 m. In particular, in the present embodiment, the base portion 2 has a rectangular shape in a plan view, and a penetrating portion 20 penetrating vertically is formed in a central portion in a plan view. As shown in FIG. 1, the front, rear, left and right of the trolley 1 are determined by design, one of the directions along the long side is the front and the other is the rear, and one of the directions along the short side is the left. And the other is on the right. In the present embodiment, the shape of the carriage 1 in a plan view is symmetrical (that is, symmetrical) with respect to a line along the long side passing through the center of the short side.

As shown in FIG. 3, the base portion 2 includes a frame member 4, a step filling member 7, and a gap filling member 8. The frame member 4 is a structural member that is the main body of the base portion 2 and is an indispensable member that constitutes the base portion 2. However, since the step filling member 7 and the gap filling member 8 are not the structural members of the base portion 2, they are used. Even if the frame member 4 is not provided, only the frame member 4 functions as the base portion 2. The outer shape of the base portion 2 is determined by the outer shape of the frame member 4.

The caster portion 3 has a wheel portion 31 and a support portion 32 that suspends and supports the wheel portion 31. Although not particularly shown, the wheel portion 31 has a rotating shaft, a rim, a tire, and the like. The tire is preferably made of rubber, but is not particularly limited. The support portion 32 has an upper piece, a connecting piece that connects the rotating shaft and the upper piece of the wheel portion 31, a shaft that rotatably connects the upper piece and the connecting piece, and the like. Since the connecting piece can rotate to the upper piece, the direction of the rotation axis of the wheel portion 31 can be changed. Such a caster portion 3 is conventionally known, and various known casters can be appropriately used. The caster portion 3 is attached to the lower surface of the base portion 2 by an appropriate method.

The frame member 4 that forms the main body of the base portion 2 has a plurality of side members 5 and a corner member 6 that connects the plurality of side members 5. In the present embodiment, since the frame member 4 has a rectangular frame shape in a plan view, the frame member 4 has four side members 5 and four corner members 6.

The side member 5 has a beam portion 52 that extends in the lateral direction (horizontal direction in which the carriage 1 is placed on a horizontal plane) and whose upper surface serves as a side support surface 51 that supports the load. In the present embodiment, the frame member 4 is a side member 5, a side member 53 along the long side on the left side, a side member 53 along the long side on the right side, and a rear side member 54 along the short side on the rear side. , A front side member 55 along the short side on the front side.

The two side members 53 are the same except that the left and right sides are reversed from each other.

The side member 53 has an angle member 530. The angle member 530 has a vertical piece 531 and a horizontal piece 532 that serves as a beam portion 52, and is made of metal. The upper surface of the horizontal piece 532 is a side support surface 51 that supports the load. Of course, the side support surface 51 (upper surface) of the side member 53 can directly support the load, but in the present embodiment, the side support surface 51 of the side member 53 has a step, which will be described later. The load is indirectly supported via the buried member 7. The vertical piece 531 stands above the edge of the outer side of the horizontal piece 532 (the outer end side of the frame member 4 in a plan view). The vertical piece 531 is a regulation unit (in other words, a regulatory unit) that regulates the movement of the load outward so that the load placed on the upper surface of the horizontal piece 532 does not move outward and fall from the horizontal piece 532. It functions as a fall prevention unit). Further, by integrally forming such a vertical piece 531, the bending rigidity of the horizontal piece 532 on which the load is placed and the dolly 1 as a whole is improved, and the horizontal piece 532 (dolly 1) is less likely to bend. , The strength of the trolley 1 against impact is improved.

The rear side member 54 has a metal angle member 540 having a vertical piece 541 and a horizontal piece 542 that serves as a beam portion 52, similarly to the side side member 53. Similar to the side member 53, the upper surface of the horizontal piece 542 serves as the side support surface 51, the vertical piece 541 functions as a regulating portion (fall prevention portion), and the vertical piece 541 makes the horizontal piece 542 less likely to bend. be. In the present embodiment, the side support surface 51 (upper surface) of the rear side member 54 directly supports the load.

The front side member 55 has a metal angle member 550 having a horizontal piece 551 serving as a beam portion 52 and a hanging piece 552. The point that the upper surface of the horizontal piece 551 serves as the side support surface 51 is the same as that of the side member 53 and the rear side member 54. The hanging piece 552 hangs below the front edge of the lateral piece 551. By integrally forming such a hanging piece 552, the horizontal piece 551 on which the load is placed is less likely to bend.

The upper surface of the corner member 6 is a corner support surface 61 that supports the load. The corner member 6 has a notch 62 into which the end of the beam 52 is inserted below the corner support surface 61. In the present embodiment, the frame member 4 is a corner member 6, a rear corner member 63 arranged at the left and right ends of the short side on the rear side, and a front corner arranged at the left and right ends of the short side on the front side, respectively. It has a member 64 and.

The two rear corner members 63 are the same except that the left and right sides are reversed from each other. The rear corner member 63 has a horizontal piece 631 and a vertical piece 632, and is made of resin. The horizontal piece 631 has a triangular shape in a plan view. The upper surface of the horizontal piece 631 is a corner support surface 61 that supports the load. The vertical piece 632 is above the outer edge of the horizontal piece 631 (the outer end side of the frame member 4 in a plan view), specifically, the rear edge of the horizontal piece 631 and the outer edge in the left-right direction. Stand up. The vertical piece 632 functions as a regulating unit (fall prevention unit). Further, by integrally forming such a vertical piece 632, the horizontal piece 631 on which the load is placed is less likely to bend.

A groove portion 633 that opens downward is formed in the vertical piece 632. More specifically, a groove portion 633 that opens downward and forward is formed in a portion of the vertical piece 632 along the long side of the base portion 2, and the vertical piece 531 of the side member 53 is inserted into the groove portion 633. Further, a groove portion 633 that opens downward and to the left or right is formed in a portion of the vertical piece 632 along the short side of the base portion 2, and the vertical piece 541 of the rear side member 54 is inserted into the groove portion 633. NS.

The horizontal piece 631 is formed with a notch 62 on the lower surface (that is, the lower side of the corner support surface 61) into which the end portion of the beam portion 52 of the side member 5 is inserted. More specifically, a notch 62 into which the horizontal piece 532 of the side member 53 is inserted is formed in a portion of the lower surface of the horizontal piece 631 along the groove portion 633 into which the vertical piece 531 of the side member 53 is inserted. .. Further, a notch 62 into which the horizontal piece 542 of the rear side member 54 is inserted is formed in a portion of the lower surface of the horizontal piece 631 along the groove portion 633 into which the vertical piece 541 of the rear side member 54 is inserted.

As described above, since the corner member 6 has the cutout portion 62 into which the end portion of the beam portion 52 is inserted under the corner support surface 61, there is a step between the lower surface of the corner member 6 and the lower surface of the side member 5. Is less likely to occur. Alternatively, the lower surface of the corner member 6 and the lower surface of the side member 5 can be located on the same plane.

The front corner member 64 has a horizontal piece 641 and a vertical piece 642, and is made of resin. Similar to the rear corner member 63, the horizontal piece 641 has a triangular shape in a plan view, and the upper surface of the horizontal piece 641 serves as a corner support surface 61. The vertical piece 642 stands above the outer edge of the horizontal piece 641 in the left-right direction. Similar to the rear corner member 63, the vertical piece 642 functions as a regulating portion (fall prevention portion), and the vertical piece 642 makes the horizontal piece 641 less likely to bend.

A groove portion that opens downward is formed in the vertical piece 642, and the vertical piece 531 of the side member 53 is inserted into this groove portion. A notch (not shown) into which the horizontal piece 542 of the rear side member 54 is inserted is formed on the lower surface of the horizontal piece 641. Further, a notch 644 into which the horizontal piece 551 of the front side member 55 is inserted is formed on the upper surface of the horizontal piece 641. By forming such a notch portion 644, a step is less likely to occur between the upper surface of the corner member 6 and the upper surface of the side member 5. Alternatively, the upper surface of the corner member 6 and the upper surface of the side member 5 can be located on the same plane. In the present embodiment, the corner support surface 61 of the front corner member 64 and the upper surface of the horizontal piece 551 of the front side member 55 are on the same plane. The upper surface of the horizontal piece 551 is lower than the corner support surface 61 and may be slightly recessed with respect to the corner support surface 61, but the corner support surface 61 of the front corner member 64 and the horizontal piece 551 of the front side member 55 The positional relationship of the upper surfaces is not limited.

Further, a notch 645 into which the hanging piece 552 of the front side member 55 is inserted is formed on the front surface of the vertical piece 642. By forming such a notch portion 645, a step is less likely to occur between the front surface of the corner member 6 and the front surface of the side member 5. Alternatively, the front surface of the corner member 6 and the front surface of the side member 5 can be located on the same plane. In the present embodiment, the front surface of the hanging piece 552 is located behind the front surface of the front corner member 64 in a state where the hanging piece 552 is inserted into the notch 645.

A through hole 643 is formed in a portion of the upper surface of the front corner member 64 in which the cutout portion 644 is formed. Further, a through hole 553 through which a screw passes is formed in a corresponding portion of the horizontal piece 551 of the front side member 55. Since the through hole 553 and the through hole 643 communicate with each other in a state where the lateral piece 551 of the front side member 55 is inserted into the notch 644 on the upper surface of the front corner member 64, the rivet (not shown) is rivet (not shown) through the through hole 553 and the through hole 643. The front side member 55 can be attached to the front corner member 64 by riveting through the front corner member 64.

A state in which the vertical piece 531 of the side member 5 is inserted into the groove portion 633 of the vertical piece 632 and 642 of the corner member 6, and the horizontal piece 532 of the side member 5 is inserted into the notch 62 of the horizontal piece 631 and 641 of the corner member 6. Then, the corner member 6 and the side member 5 are fixed by driving a rivet (not shown) or the like into the side member 5 via the corner member 6. As a result, the frame member 4 is configured.

The horizontal pieces 532 and 542 of the side member 5 (side member 53 and rear side member 54) are inserted below the corner support surface 61 of the corner member 6. Therefore, as shown in FIG. 4A, the side support surface 51, which is the upper surface of the horizontal pieces 532 and 542 of the side member 5 (side member 53 and the rear side member 54), is located below the corner support surface 61. do. In this state, if an attempt is made to place the load on the side support surface 51 and the corner support surface 61, which are the support surfaces of the base portion 2, it becomes difficult to place the load horizontally. Further, the load is caught on the step caused by the height difference between the side support surface 51 and the corner support surface 61, which makes it difficult to move the load. Therefore, a step filling member 7 is provided to fill the step caused by the height difference between the side support surface 51 and the corner support surface 61. As shown in FIG. 4B, the step filling member 7 is placed on the side support surface 51 in a state where the end portion of the beam portion 52 is inserted into the notch portion 62. The step-filling member 7 is shown in FIGS. 5A to 5C.

As shown in FIG. 5C, the step-filling member 7 has a filling member vertical piece 71 and a filling member horizontal piece 72, and is formed in an L-shaped cross section. The step filling member 7 is made of resin. The step-filling member 7 is formed by extrusion molding, and has a constant shape in a cross section orthogonal to the longitudinal direction. The buried member vertical piece 71 stands above the outer edge of the buried member horizontal piece 72 in the left-right direction. The buried member vertical piece 71 is along the vertical piece 531 of the side member 53. The buried member vertical piece 71 functions as a regulating portion (fall prevention portion). A groove portion 711 that opens downward is formed in the buried member vertical piece 71, and the vertical piece 531 of the side member 53 is inserted into the groove portion 711.

The length of the step-filling member 7 in the longitudinal direction is the same as the distance between the front surface of the rear corner member 63 and the rear surface of the front corner member 64. As a result, the step filling member 7 is less likely to come off than the side member 5 even if it is not fixed to the side member 5 by rivets or the like because a gap is not formed between the front surface of the rear corner member 63 and the rear surface of the front corner member 64. ..

The length of the step-filling member 7 in the longitudinal direction is shorter than the length of the side member 53 in the longitudinal direction. That is, the length of the upper surface 74 of the step-filling member 7 in the front-rear direction is shorter than the length of the side support surface 51 of the side member 53 in the front-rear direction.

As shown in FIG. 4B, the embedded member horizontal piece 72 is placed on the side support surface 51. As shown in FIG. 5C, the buried member horizontal piece 72 is formed with a groove portion 721 into which the horizontal piece 532 of the side member 53 is inserted. With the horizontal piece 532 of the side member 53 inserted into the groove 721 of the horizontal piece 72 of the buried member, the lower surface of the rib 722 formed in the upper portion of the groove 721 of the horizontal piece 72 of the buried member is the side support surface 51. It is placed in. Further, an insertion hole 723 into which the gap filling member 8 is inserted is formed in the filling member horizontal piece 72.

As shown in FIG. 4B, in the present embodiment, the upper surface 74 of the buried member horizontal piece 72 is located on the same plane as the side support surface 51. As a result, it is possible to eliminate the step formed between the side support surface 51 and the corner support surface 61. As a result, since the side support surface 51 and the corner support surface 61 are not located on the same plane, the load does not become horizontal and tilts. Further, the load does not get caught in the step formed between the side support surface 51 and the corner support surface 61, which makes it difficult to move the load.

In the present embodiment, the step-filling member 7 is mounted on the side member 53, but is not mounted on the rear side member 54 and the front side member 55. The load is often placed on the base 2 from the front and slid backward. Therefore, if the step between the side support surface 51 of the side side member 53 and the corner support surface 61 of the rear corner member 63 and the front corner member 64 is eliminated or reduced, it is placed on the base 2. The slide to the rear of the load is less likely to be hindered. Since the step-filling member 7 is not mounted on the rear side member 54, the lower surface of the load mounted on the corner support surface 61 of the rear corner member 63 and the upper surface (side support surface 51) of the rear side member 54 A gap is formed between them.

In the step filling member 7, the vertical piece 531 of the side member 53 is inserted into the groove portion 711 formed in the vertical piece 71 of the filling member, and the horizontal piece 532 of the side member 53 is inserted into the groove portion 721 formed in the horizontal piece 72 of the buried member. Is inserted. As a result, after the step filling member 7 is attached to the side side member 53, the step filling member 7 does not come off from the side side member 53 unless the step filling member 7 is slid in the longitudinal direction of the side side member 53. That is, in the state where the base portion 2 (including the step filling member 7) is assembled, the step filling member 7 cannot be removed unless the base portion 2 is disassembled.

The upper surface 74 of the buried member horizontal piece 72 does not have to be located on the same plane as the side support surface 51. Even in this case, the step formed between the side support surface 51 and the corner support surface 61 can be reduced as compared with the case where the step filling member 7 is not provided. When the upper surface 74 is not located on the same plane as the side support surface 51, the side support surface 51 is preferably located lower than the upper surface 74.

In the present embodiment, as shown in FIGS. 2A and 3, the carriage 1 further includes a gap filling member 8. The gap filling member 8 is shown in FIGS. 6A to 6C. The gap filling member 8 is adjacent to the step filling member 7 and the corner member 6 at a portion adjacent to the step filling member 7 and the corner member 6. The gap filling member 8 is made of resin. As shown in FIG. 2A, in the adjacent portion between the step filling member 7 and the corner member 6, a triangular recess 11 as a gap is formed between the side surface 65 of the corner member 6 and the side surface 73 of the step filling member 7. It is formed. The gap filling member 8 is arranged in the recess 11, and the recess 11 is filled.

The gap filling member 8 has a main body portion 81 and an insertion portion 82 protruding from the main body portion 81. The main body 81 has a triangular shape in a plan view, and is arranged in a triangular recess 11. The insertion portion 82 is inserted into the insertion hole 723 formed in the buried member horizontal piece 72 of the step filling member 7. The size of the insertion portion 82 is larger than the size of the main body portion 81.

The upper surface 83 of the gap filling member 8 is located on the same plane as the upper surface 74 of the step filling member 7 and the upper surface (corner support surface 61) of the corner member 6. Further, the side surface 84 of the gap filling member 8 is located on the same plane as the side surface 73 of the step filling member 7.

By providing such a gap filling member 8, it becomes difficult for the load to enter and get caught in the gap formed between the step filling member 7 and the corner member 6.

Next, a modified example will be described.

The base portion 2 does not have to be formed with a penetrating portion 20 penetrating vertically.

The shape of the pedestal 2 may be square in plan view or not rectangular in plan view, and is not particularly limited. Further, the shapes of the pedestal portion 2 and the trolley 1 do not have to be symmetrical. The size of the base 2 is not particularly limited.

The entire base 2 may be made of resin. Further, the entire base portion 2 may be formed of metal.

The direction of the rotation axis of the wheel portion 31 of the caster portion 3 may not be convertible with respect to the support portion 32.

In the above-described embodiment, the frame member 4 is composed of a side member 5 composed of a side member 53, a rear side member 54 and a front side member 55, and a corner member 6 composed of a rear corner member 63 and a front corner member 64. rice field. On the other hand, the frame member 4 may be configured by using the rear side member 54 instead of the front side member 55 and using the rear corner member 63 instead of the front corner member 64.

The number of side members 5 and corner members 6 does not have to be four, and the number is not limited. Further, the number of side members 5 and corner members 6 does not have to be the same.

The side member 5 does not have to be composed of two side member 53, a rear side member 54, and a front side member 55. For example, one side member 53 and the rear member 54 may be integrally formed.

The two side members 53 may not be the same except that the left and right sides are reversed from each other, the left and right sides may not be reversed from each other, or they may be completely the same, and they may be completely the same. Relationship is not limited.

The side member 5 is not limited to the one having the angle members 530, 540, and 550, and the shape, size, material, and the like of the side member 5 are not limited.

The side support surface 51 of the rear side member 54 may indirectly support the load via the step filling member 7.

The length of the carriage 1 can be changed by replacing the side member 53 and the step filling member 7 with parts having different lengths.

The corner member 6 does not have to be composed of two rear corner members 63 and two front corner members 64.

The corner member 6 has a hole in which the end of the beam 52 is inserted below the corner support surface 61 instead of the notch 62 in which the end of the beam 52 is inserted below the corner support surface 61. May have.

The two rear corner members 63 may not be the same except that the left and right sides are reversed from each other, the left and right sides may not be reversed from each other, or they may be completely the same. Relationship is not limited.

The shape, size, material, etc. of the corner member 6 are not limited.

The step filling member 7 does not have to be formed of resin. Further, the step filling member 7 does not have to be formed by extrusion molding.

Other examples of the step filling member 7 are shown in FIGS. 7A and 7B. In this other example, the insertion hole 723 (see FIG. 5C) is not formed in the buried member horizontal piece 72 of the step-filling member 7. That is, the step-filling member 7 does not have to have an insertion hole 723 into which the gap-filling member 8 is inserted, and the insertion hole 723 has an arbitrary configuration.

A further example of the step filling member 7 is shown in FIG. In another example, the step-filling member 7 does not have the buried member vertical piece 71 (see FIG. 7A and the like). The step filling member 7 has a filling member horizontal piece 72. The embedded member horizontal piece 72 has a recess 75. The portion of the upper surface of the buried member horizontal piece 72 other than the recess 75 is the upper surface 74 that supports the load. The load may be placed in the recess 75. In another example, the step-filling member 7 is fixed to the side member 5 by driving a rivet into the side member 5 through the portion of the recess 75 of the padding member horizontal piece 72.

A hole through which the rivet passes may be formed in advance in the member (side member 5, corner member 6, step filling member 7, etc.) into which the rivet is driven before the rivet is driven.

The upper surface 83 of the gap filling member 8 does not have to be located on the same plane as the upper surface 74 of the step filling member 7 and the upper surface (corner support surface 61) of the corner member 6. Further, the side surface 84 of the gap filling member 8 does not have to be located on the same plane as the side surface 73 of the step filling member 7. Further, the shape, size, material, etc. of the gap filling member 8 are not limited. Further, the gap filling member 8 has an arbitrary configuration and does not have to be provided on the carriage 1.

The gap filling member 8 may be integrally molded with the corner member 6.

As is clear from the above-described embodiments and modifications, the carriage 1 of the first aspect has a plurality of side members 5 having a beam portion 52 extending in the lateral direction and having a side support surface 51 on the upper surface, and an upper surface. With a corner member 6 which has a corner support surface 61 and at least a hole or a notch 62 into which the end of the beam portion 52 is inserted under the corner support surface 61, and connects a plurality of side members 5. The frame member 4 constituting the base portion 2 for mounting the load is provided. The carriage 1 includes a step filling member 7 for filling a step caused by a height difference between the side support surface 51 and the corner support surface 61. The step filling member 7 is placed on the side support surface 51 in a state where the end portion of the beam portion 52 is inserted into the hole portion or the notch portion 62.

According to the first aspect, the step formed between the side support surface 51 and the corner support surface 61 can be eliminated or the step can be reduced as compared with the case where the step filling member 7 is not provided. ..

The second aspect can be realized in combination with the first aspect. In the second aspect, the side member 5 has an angle member having a vertical piece 531 and a horizontal piece 532 that serves as a beam portion 52. The step-filling member 7 has a buried member vertical piece 71 along the vertical piece 531 and a buried member horizontal piece 72 mounted on the side support surface 51, and is formed in an L-shaped cross section.

According to the second aspect, the vertical piece 531 of the side member 5 and the buried member vertical piece 71 of the step-filling member 7 move the load placed on the upper surface of the horizontal piece 532 outward from the horizontal piece. It is suppressed from falling.

The third aspect can be realized in combination with the first or second aspect. In the third aspect, the carriage 1 further includes a gap filling member 8. The gap filling member 8 is adjacent to the step filling member 7 and the corner member 6 at a portion adjacent to the step filling member 7 and the corner member 6.

According to the third aspect, by providing the gap filling member 8, it is difficult for the load to enter and get caught in the gap formed between the step filling member 7 and the corner member 6.

1 dolly 4 frame member 5 side member 51 side support surface 52 beam part 530 angle material 531 vertical piece 532 horizontal piece 6 corner member 61 corner support surface 62 notch 7 step filling member 71 buried member vertical piece 72 buried member horizontal piece 74 top surface 8 Gap filling member

Claims (3)

A plurality of side members having a beam portion extending in the lateral direction and having an upper surface serving as a side support surface,
A corner member having a corner support surface on the upper surface and at least a hole or a notch on the lower side of the corner support surface into which the end portion of the beam portion is inserted, and connecting the plurality of side members.
In a trolley provided with a frame member constituting a pedestal for placing a load by
A step filling member for filling a step caused by a height difference between the side support surface and the corner support surface is provided.
The step filling member is a carriage characterized in that the end portion of the beam portion is placed on the side support surface in a state of being inserted into the hole portion or the notch portion. The side member has an angle member having a vertical piece and a horizontal piece serving as the beam portion.
The claim is characterized in that the step-filling member has a vertical piece of the buried member along the vertical piece and a horizontal piece of the buried member placed on the side support surface, and is formed in an L-shaped cross section. The dolly according to item 1. With more gap filling members
The carriage according to claim 1 or 2, wherein the gap filling member is adjacent to the step filling member and the corner member at a portion adjacent to the step filling member and the corner member.

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