JP7421792B2 - trolley - Google Patents

Description

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

BACKGROUND ART Conventionally, a truck is known that includes a plurality of side members and a corner member that connects the plurality of side members (see, for example, Patent Document 1). The side members extend in the lateral direction, and the upper surface serves as a mounting surface for the loaded object. Further, the corner member has an upper surface that serves as a mounting surface for the loaded object, and a side surface that has a hole into which the end of the side member is inserted.

In the cart shown in Patent Document 1, the mounting surfaces of the side members are located below the mounting surfaces of the corner members, and the mounting surfaces are not on the same plane, and there is a space between the mounting surfaces. A step was formed. For this reason, problems arise due to the formation of steps, such as difficulty in horizontally loading the objects, and problems such as the objects being caught on the steps and difficult to move.

Utility model registration No. 3189533

The present invention was devised in view of the above-mentioned conventional problems, and it is an object of the present invention to provide a trolley in which steps are less likely to occur on a support surface that supports a loaded object.

In order to solve the above problems, a trolley according to one embodiment of the present invention includes a plurality of side members each having a beam portion extending in the transverse direction and whose upper surface serves as a side support surface, a corner support surface on the upper surface, and a plurality of side members each having a corner support surface on the upper surface. a corner member having at least a hole or a notch into which the end of the beam is inserted under the corner support surface and connecting the plurality of side members; A frame member is provided. The truck includes a step burying 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 with the end portion of the beam portion inserted into the hole portion or the notch portion.

In the trolley according to the present invention, steps are less likely to occur on the support surface that supports the loaded object.

FIG. 1 is a perspective view of a truck according to the first embodiment. FIG. 2A is a plan view of the above truck. FIG. 2B is a side view of the same truck as above. FIG. 2C is a front view of the cart same as above. FIG. 3 is an exploded perspective view of the same truck as above. FIG. 4A is a longitudinal cross-sectional view of a part of the frame member of the above truck. FIG. 4B is a longitudinal sectional view of a portion of the frame member in which the step filling member is attached. FIG. 5A is a side view of the step filling member same as above. FIG. 5B is a plan view of the step filling member same as above. FIG. 5C is a front view of the step filling member same as above. FIG. 6A is a plan view of a gap filling member of the same truck as above. FIG. 6B is a side view of the gap filling member same as above. FIG. 6C is a bottom view of the gap filling member same as above. FIG. 7A is a perspective view of another example of the step-burying member. FIG. 7B is a perspective view of the step-embedding member of the same as above seen from another angle. FIG. 8 is a perspective view of still another example of the step-burying member.

The present invention relates to a truck. DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a cart according to the present invention will be described based on embodiments shown in the accompanying drawings.

A cart according to one embodiment will be described based on FIGS. 1 to 6C. As shown in FIGS. 1 to 2C, the truck 1 includes a base portion 2 and caster portions 3. As shown in FIGS. A load is placed on the upper surface of the platform 2. As shown in FIG. 2A, the platform 2 has a rectangular shape in plan view, and each side is approximately 30 cm to 1 m. In particular, in this embodiment, the platform 2 has a rectangular shape in a plan view, and a penetration part 20 that penetrates vertically is formed in the center part in a plan view. As shown in Fig. 1, the front, rear, left, and right sides of the trolley 1 are determined by design; one direction along the long side is the front, the other is the rear, and one direction along the short side is the left. and the other side is on the right. In this embodiment, the shape of the trolley 1 in plan view is symmetrical (that is, bilaterally symmetrical) about a line along the long side passing through the center of the short side.

As shown in FIG. 3, the platform 2 includes a frame member 4, a step filling member 7, and a gap filling member 8. The frame member 4 is the main structural member of the base 2 and is an essential member constituting the base 2, but the step filling member 7 and the gap filling member 8 are not structural members of the base 2. Even if the frame member 4 is not provided, the frame member 4 alone functions as the base portion 2. The outer shape of the frame member 4 determines the outer shape of the platform 2.

The caster portion 3 includes a wheel portion 31 and a support portion 32 that suspends and supports the wheel portion 31. Although not particularly illustrated, the wheel portion 31 includes 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 includes an upper piece, a connecting piece that connects the rotating shaft of the wheel portion 31 and the upper piece, a shaft that rotatably connects the upper piece and the connecting piece, and the like. Since the connecting piece is rotatable toward 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 used as appropriate. 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 includes a plurality of side members 5 and a corner member 6 that connects the plurality of side members 5. In this embodiment, since the frame member 4 has a rectangular frame shape in 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 when the cart 1 is placed on a horizontal surface) and whose upper surface serves as a side support surface 51 that supports a loaded object. In this embodiment, the frame member 4 includes, as side members 5, a side member 53 along the left long side, a side member 53 along the right long side, and a rear side member 54 along the rear short side. , and a front side member 55 along the front short side.

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

The side member 53 has an angle member 530. The angle member 530 has a vertical piece 531 and a horizontal piece 532 that becomes the beam portion 52, and is made of metal. The upper surface of the horizontal piece 532 becomes the side support surface 51 that supports the loaded object. Incidentally, it is of course possible for the side support surface 51 (upper surface) of the side member 53 to directly support the loaded object, but in this embodiment, the side support surface 51 of the side member 53 has a step which will be described later. The loaded object is indirectly supported via the buried member 7. The vertical piece 531 stands up above the outer edge of the horizontal piece 532 (the outer end side of the frame member 4 in plan view). The vertical piece 531 is a regulating part (in other words) that restricts the loaded item from moving outward so that the loaded item placed on the upper surface of the horizontal piece 532 does not move outward and fall from the horizontal piece 532. (fall prevention part). Furthermore, by forming such a vertical piece 531 in one piece, the bending rigidity of the horizontal piece 532 on which the loaded object is placed and the entire truck 1 is improved, and the horizontal piece 532 (the truck 1) becomes difficult to bend. , the strength of the truck 1 against impact is improved.

Like the side members 53, the rear side member 54 includes a metal angle member 540 having a vertical piece 541 and a horizontal piece 542 that becomes the beam portion 52. Similar to the side member 53, the upper surface of the horizontal piece 542 becomes the side support surface 51, the vertical piece 541 functions as a regulating part (fall prevention part), and the vertical piece 541 makes the horizontal piece 542 difficult to bend. be. In this embodiment, the side support surface 51 (upper surface) of the rear side member 54 directly supports the loaded object.

The front side member 55 includes a metal angle member 550 having a horizontal piece 551 serving as the beam portion 52 and a hanging piece 552. Similar to the side members 53 and rear side members 54, the upper surface of the horizontal piece 551 serves as the side support surface 51. The hanging piece 552 hangs downward from the front edge of the horizontal piece 551. By integrally forming such a hanging piece 552, the horizontal piece 551 on which the loaded object is placed becomes difficult to bend.

The upper surface of the corner member 6 serves as a corner support surface 61 that supports a loaded object. The corner member 6 has a notch 62 below the corner support surface 61 into which the end of the beam 52 is inserted. In this embodiment, the frame member 4 includes, as corner members 6, rear corner members 63 disposed at both left and right ends of the short side on the rear side, and front corners disposed at both left and right ends of the short side on the front side, respectively. It has a member 64.

The two rear corner members 63 are the same except that the left and right sides are reversed. 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 plan view. The upper surface of the horizontal piece 631 becomes a corner support surface 61 that supports the loaded object. The vertical piece 632 is located above the outer edge of the horizontal piece 631 (the outer end side of the frame member 4 in 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 section (fall prevention section). Further, by integrally forming such a vertical piece 632, the horizontal piece 631 on which the loaded object is placed becomes difficult to bend.

A groove 633 that opens downward is formed in the vertical piece 632 . To explain further, 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 this 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 this groove portion 633. Ru.

The horizontal piece 631 has a notch 62 formed on its lower surface (that is, below the corner support surface 61) into which the end of the beam portion 52 of the side member 5 is inserted. To explain further, 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 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 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 notch part 62 on the lower side of the corner support surface 61 into which the end of the beam part 52 is inserted, there is a step difference 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 may 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. It is similar to the rear corner member 63 in that the horizontal piece 641 has a triangular shape in plan view and that the upper surface of the horizontal piece 641 serves as the corner support surface 61. The vertical piece 642 stands up above the outer edge of the horizontal piece 641 in the left-right direction. It is similar to the rear corner member 63 in that the vertical piece 642 functions as a regulating part (fall prevention part) and that the vertical piece 642 makes it difficult for the horizontal piece 641 to bend.

A groove portion opening 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. Furthermore, 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 644, a level difference 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 may be located on the same plane. In this 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. Note that the upper surface of the horizontal piece 551 may be lower than the corner support surface 61 and slightly recessed with respect to the corner support surface 61; The positional relationship on the top surface is not limited.

Furthermore, a notch 645 is formed on the front surface of the vertical piece 642, into which the hanging piece 552 of the front side member 55 is inserted. By forming such a notch 645, a difference in level 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 may be located on the same plane. Note that in this embodiment, the front surface of the hanging piece 552 is located rearward than the front surface of the front corner member 64 when 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 where the notch 644 is formed. Furthermore, 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. When the horizontal 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 through hole 553 and the through hole 643 communicate with each other, so a rivet (not shown) is inserted into 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 the front side member 55 through the front corner member 64.

A state in which the vertical piece 531 of the side member 5 is inserted into the groove 633 of the vertical pieces 632, 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, 641 of the corner member 6. Then, by driving a rivet (not shown) or the like into the side member 5 through the corner member 6, the corner member 6 and the side member 5 are fixed. Thereby, the frame member 4 is constructed.

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

As shown in FIG. 5C, the step-embedding member 7 has a vertical embedding member piece 71 and a embedding member horizontal piece 72, and is formed to have an L-shaped cross section. The step filling member 7 is made of resin. The step-embedding member 7 is formed by extrusion molding, and has a constant shape in a cross section perpendicular to the longitudinal direction. The buried member vertical piece 71 stands up above the outer edge of the buried member horizontal piece 72 in the left-right direction. The embedded member vertical piece 71 extends along the vertical piece 531 of the side member 53. The buried member vertical piece 71 functions as a regulating section (fall prevention section). A groove 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 this groove 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, since no gap is formed between the front surface of the rear corner member 63 and the rear surface of the front corner member 64, the step-embedding member 7 does not easily come off from the side member 5 even if it is not fixed to the side member 5 with rivets or the like. .

The length of the step-embedding 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-embedding 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 embedded member horizontal piece 72 is formed with a groove 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 buried member horizontal piece 72, the lower surface of the rib 722 formed in the upper part of the groove 721 of the buried member horizontal piece 72 is aligned with the side support surface 51. will be placed on. 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 this embodiment, the upper surface 74 of the buried member horizontal piece 72 is located on the same plane as the side support surface 51. Thereby, the step formed between the side support surface 51 and the corner support surface 61 can be eliminated. As a result, the side support surface 51 and the corner support surface 61 are not located on the same plane, which prevents the loaded object from being tilted instead of being level. In addition, the loaded items do not get caught on the step formed between the side support surface 51 and the corner support surface 61, making it difficult to move the loaded items.

In this embodiment, the step-embedding member 7 is placed on the side member 53 but not on the rear side member 54 and the front side member 55. The loaded object is often placed on the platform 2 from the front and then slid rearward. Therefore, if the level difference between the side support surface 51 of the side member 53 and the corner support surface 61 of the rear corner member 63 and front corner member 64 is eliminated or reduced, the Slide of the loaded object to the rear becomes less likely to be obstructed. Since the step-embedding member 7 is not placed on the rear side member 54, the lower surface of the loaded object placed on the corner support surface 61 of the rear corner member 63 and the upper surface of the rear side member 54 (side support surface 51) are A gap is formed between them.

In the step-embedding member 7, the vertical piece 531 of the side member 53 is inserted into the groove 711 formed in the vertical piece 71 of the embedding member, and the horizontal piece 532 of the side member 53 is inserted into the groove 721 formed in the horizontal piece 72 of the embedding member. is inserted. As a result, after the step embedding member 7 is attached to the side member 53, the step embedding member 7 will not come off from the side member 53 unless the step embedding member 7 is slid in the longitudinal direction of the side member 53. That is, in the assembled state of the platform 2 (including the step-embedding member 7), the step-embedding member 7 will not come off unless the platform 2 is disassembled.

Note that the upper surface 74 of the buried member horizontal piece 72 does not need 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 made smaller compared to the case where the step embedding member 7 is not provided. In addition, when the upper surface 74 is not located on the same plane as the side support surface 51, it is preferable that the side support surface 51 is located lower than the upper surface 74.

In this embodiment, as shown in FIGS. 2A and 3, the truck 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 where the step filling member 7 and the corner member 6 are adjacent to each other. The gap filling member 8 is formed of resin. As shown in FIG. 2A, in the adjacent portion of the step filling member 7 and the corner member 6, there is a triangular recess 11 as a gap between the side surface 65 of the corner member 6 and the side surface 73 of the step filling member 7. It is formed. A gap filling member 8 is placed in this recess 11, and the recess 11 is filled.

The gap filling member 8 has a main body part 81 and an insertion part 82 that protrudes from the main body part 81. The main body portion 81 has a triangular shape in plan view and is disposed in the triangular recess 11 . The insertion portion 82 is inserted into an insertion hole 723 formed in the embedding member horizontal piece 72 of the step embedding 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 a loaded object to enter the gap formed between the step filling member 7 and the corner member 6 and get caught.

Next, a modification will be explained.

The base portion 2 does not need to be formed with the penetrating portion 20 that penetrates vertically.

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

The entire base portion 2 may be formed of resin. Alternatively, 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 changeable with respect to the support portion 32.

In the embodiment described above, the frame member 4 is composed of a side member 5 consisting of a side member 53, a rear side member 54, and a front side member 55, and a corner member 6 consisting of a rear corner member 63 and a front corner member 64. Ta. 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 may not be four and is not limited. Furthermore, the numbers of side members 5 and corner members 6 may not be the same.

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

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

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

The side support surface 51 of the rear side member 54 may indirectly support the loaded object via the step embedding member 7.

The length of the truck 1 can be changed by replacing the side members 53 and the step-embedding member 7 with parts having different lengths.

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

The corner member 6 has a hole portion into which the end portion of the beam portion 52 is inserted under the corner support surface 61 instead of a notch portion 62 into which the end portion of the beam portion 52 is inserted under the corner support surface 61. It may have.

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

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

The step filling member 7 does not need to be formed of resin. Furthermore, the step-embedding 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 embedding member horizontal piece 72 of the step embedding member 7. That is, the insertion hole 723 into which the gap filling member 8 is inserted does not need to be formed in the step filling member 7, and the insertion hole 723 may have any configuration.

Still another example of the step filling member 7 is shown in FIG. In this other example, the step filling member 7 does not have the filling member vertical piece 71 (see FIG. 7A, etc.). The step filling member 7 has a filling member horizontal piece 72. The embedded member horizontal piece 72 has a recess 75 . A portion of the upper surface of the buried member horizontal piece 72 other than the recessed portion 75 becomes an upper surface 74 that supports the loaded object. Note that the loaded object may be placed in the recess 75. In this other example, the step-embedding member 7 is fixed to the side member 5 by driving a rivet into the side member 5 through the recessed portion 75 of the embedding member horizontal piece 72.

A hole through which the rivet passes may be formed in advance in the member into which the rivet is driven (side member 5, corner member 6, step-embedding member 7, etc.) 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 need to be located on the same plane as the side surface 73 of the step filling member 7. Furthermore, 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 need to be included in the truck 1.

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

As is clear from the above-described embodiments and modified examples, the cart 1 of the first aspect includes a plurality of side members 5 having beam portions 52 that extend in the lateral direction and whose upper surfaces serve as side support surfaces 51; The corner member 6 has a corner support surface 61 at the bottom thereof, and has at least a hole or a notch 62 into which the end of the beam 52 is inserted under the corner support surface 61, and connects the plurality of side members 5. , a frame member 4 constituting a platform 2 on which a loaded object is placed. The trolley 1 includes a step embedding 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 or notch 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 reduced compared to the case where the step embedding 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 becomes the beam portion 52. The step-embedding member 7 has a vertical embedding member 71 along the vertical piece 531 and a lateral embedding member 72 placed on the side support surface 51, and is formed to have 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-embedded member 7 move the load placed on the upper surface of the horizontal piece 532 outward and away from the horizontal piece. Falling is suppressed.

The third aspect can be realized in combination with the first or second aspect. In the third aspect, the truck 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 where the step filling member 7 and the corner member 6 are adjacent to each other.

According to the third aspect, by providing the gap filling member 8, it becomes difficult for a loaded object to enter the gap formed between the step filling member 7 and the corner member 6 and get caught.

1 Cart 4 Frame member 5 Side member 51 Side support surface 52 Beam portion 530 Angle member 531 Vertical piece 532 Horizontal piece 6 Corner member 61 Corner support surface 62 Notch 7 Step embedded member 71 Vertical piece of embedded member 72 Horizontal piece of embedded member 74 Top surface 8 Gap filling material

Claims (4)

a plurality of side members each having a beam portion that extends in the horizontal direction and whose upper surface serves as a side support surface;
A corner member that has a corner support surface on its upper surface, and has at least a hole or a notch below the corner support surface into which an end of the beam is inserted, and connects the plurality of side members;
In a trolley comprising a frame member constituting a platform on which a loaded object is placed,
A step-embedding member separate from the side member for filling a step caused by a height difference between the side support surface and the corner support surface,
The said step filling member is mounted on the said side support surface with the said end part of the said beam part inserted into the said hole part or the said notch part. The trolley|bogie characterized by the above-mentioned. a plurality of side members each having a beam portion that extends in the horizontal direction and whose upper surface serves as a side support surface;
A corner member that has a corner support surface on its upper surface and at least a hole or a notch into which an end of the beam is inserted below the corner support surface, and connects the plurality of side members;
In a trolley comprising a frame member constituting a platform on which a loaded object is placed,
comprising a step-burying 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 with the end of the beam portion inserted into the hole or the notch and fixed to the side member.
A trolley characterized by: The side member has an angle member having a vertical piece and a horizontal piece that becomes the beam part,
The step-embedding member is formed to have an L-shaped cross section and includes a vertical embedding member extending along the vertical piece and a lateral embedding member placed on the side support surface.
The trolley according to claim 1 or 2, characterized in that: Further comprising a gap filling member,
The gap filling member is adjacent to the step filling member and the corner member in an adjacent portion of the step filling member and the corner member.
The trolley according to any one of claims 1 to 3, characterized in that:

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