JP7646185B2 - Trolley - Google Patents

Description

The present invention relates to a cart that can carry luggage.

A trolley has been disclosed that allows the mounting position of a fence erected on the trolley to be changed as needed (see, for example, Patent Document 1). In this trolley, holes are provided at positions corresponding to the upper and lower pieces of the U-shaped cross section. The fence is erected on the trolley by fitting an inverted U-shaped pipe into the hole on the upper side and the hole on the lower side.

Registered Utility Model No. 3152407

If a trolley is long in the longitudinal direction, it will have a problem of being difficult to turn around and difficult for users to use, whereas if a trolley is small in the longitudinal direction, it will have a problem of being easy to turn around but not being able to carry a sufficient amount of luggage, and therefore not being very convenient for users.
SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a truck that is maneuverable while ensuring a sufficient load capacity.

The above problems are solved by the present invention as described below. That is, the present invention (1) provides a cart including a cart body having a first end and a second end opposite to the first end;
a plurality of first caster portions provided on the underside of the cart body at positions between a first position moved from the first end portion along the longitudinal direction by a length that is approximately 1/3 of the longitudinal length of the cart body, and a second position moved from the first end portion along the longitudinal direction by a length that is approximately 1/6 of the longitudinal length of the cart body;
a plurality of second caster portions provided on the underside of the cart body at positions between a third position moved from the second end portion along the longitudinal direction by a length that is approximately 1/3 of the longitudinal length of the cart body, and a fourth position moved from the second end portion along the longitudinal direction by a length that is approximately 1/6 of the longitudinal length of the cart body;
A first mounting portion provided at the first end portion of the carriage body and capable of detachably mounting a first fence portion;
A second mounting portion provided at the second end portion of the carriage body and capable of detachably mounting a second fence portion;
A third mounting portion provided on the cart body near the plurality of first caster portions and to which a third fence portion can be attached and detached;
Equipped with.

The present invention (2) provides a cart according to the invention (1),
The cart body further includes an auxiliary caster portion provided at a position between the first end and the second position on the underside of the cart body.

The present invention (3) provides a cart according to the invention (2),
The auxiliary caster portion is provided so as to have a predetermined gap between the wheel and the floor surface.

The present invention (4) provides a cart according to the present invention (2) or (3),
The plurality of first caster portions are provided in pairs spaced apart from each other in a width direction of the carriage body that intersects with the longitudinal direction,
The auxiliary caster portion is provided at a middle portion between the pair of first caster portions.

The present invention (5) provides a cart according to any one of (1) to (4),
A first shelf board disposed between the second fence portion attached to the second mounting portion and the third fence portion attached to the third mounting portion;
Equipped with
The structure is such that it is impossible to place a second shelf plate having a length different from that of the first shelf plate between the first fence portion attached to the first mounting portion and the third fence portion attached to the third mounting portion.

The present invention (6) provides a cart system comprising the cart according to (5),
The third mounting portion is provided at the first position.

The present invention (7) provides a cart system comprising the cart according to (5),
The third mounting portion is provided at the second position.

The present invention provides a trolley that is maneuverable while still having sufficient load capacity.

FIG. 2 is a perspective view showing the bogie of the first embodiment. FIG. 2 is a side view of the bogie shown in FIG. 1 , viewed from the side. FIG. 2 is a perspective view showing the dolly shown in FIG. 1 from below. 2 is an exploded perspective view showing a process of attaching and detaching the first fence portion of the cart shown in FIG. 1 to and from the first mounting portion. FIG. FIG. 2 is a perspective view showing a first usage mode of the dolly shown in FIG. 1 . FIG. 2 is a perspective view showing a second usage mode of the dolly shown in FIG. 1 . FIG. 11 is a perspective view showing a bogie according to a second embodiment. 8 is a side view of the bogie shown in FIG. 7 , viewed from the side. FIG. 11 is a perspective view showing a bogie according to a third embodiment. FIG. 11 is a perspective view showing the bogie of the fourth embodiment from below.

An embodiment of the cart of the present invention will be described below with reference to Figures 1 to 10. The cart of the present invention is, for example, installed in the back yard of a store and used to stock items (merchandise), and can also be transported in that state to the vicinity of display shelves in the store and used to put out items.
[First embodiment]

The trolley 11 of the first embodiment will be described with reference to Figures 1 to 6. As shown in Figures 1 to 3, the trolley 11 comprises a trolley body 12 having a first end 12A and a second end 12B opposite thereto, a plurality of first caster sections 13 and a plurality of second caster sections 14 provided on the underside (bottom surface) of the trolley body 12, a first position P1, a second position P2, a third position P3, and a fourth position P4 on the trolley body 12, one or more auxiliary caster sections 15 provided on the underside (bottom surface) of the trolley body 12, a pair of cylindrical first mounting sections 21 provided at the first end 12A of the trolley body 12, and a pair of cylindrical first mounting sections 22 provided at the second end 12B of the trolley body 12. The trolley includes a pair of cylindrical second mounting parts 22, a pair of cylindrical third mounting parts 23 provided at the first position P1 and the second position P2 of the trolley body 12, a pair of cylindrical fourth mounting parts 28 provided at the third position P3 and the fourth position P4 of the trolley body 12, a first fence part 24 detachably attached to the inside of the first mounting part 21, a second fence part 25 detachably attached to the inside of the second mounting part 22, a third fence part 26 detachably attached to the inside of the third mounting part 23, and one or more first shelves 27 stretched between the second fence part 25 and the third fence part 26.

The cart body 12 is, for example, in the form of a rectangular flat plate that is elongated in the longitudinal direction L. The cart body 12 has a support surface 31 on the upper surface, which is formed of, for example, a synthetic resin material. The cart body 12 has a reinforcing frame 32 provided on the underside of the support surface 31. The reinforcing frame 32 is formed by welding metal bars into a rectangular framework. The frame 32 is, for example, welded to the first to third mounting parts 21 to 23 so as to be integrated with them, and is able to support them. A plurality of first caster parts 13, a plurality of second caster parts 14, and one or more auxiliary caster parts 15 are attached to the underside (lower surface) of the frame 32 by fixing members such as screws.

The first position P1 is a position on the carriage body 12 moved from the first end 12A along the longitudinal direction L by approximately 1/3 of the length of the longitudinal direction L of the carriage body 12. The second position P2 is a position on the carriage body 12 moved from the first end 12A along the longitudinal direction L by approximately 1/6 of the length of the longitudinal direction L of the carriage body 12. The third position P3 is a position on the carriage body 12 moved from the second end 12B along the longitudinal direction L by approximately 1/3 of the length of the longitudinal direction L of the carriage body 12. The fourth position P4 is a position on the carriage body 12 moved from the second end 12B along the longitudinal direction L by approximately 1/6 of the length of the longitudinal direction L of the carriage body 12.

Each of the multiple first caster sections 13 is provided at a position between the first position P1 and the second position P2 of the cart body 12. The multiple first caster sections 13 are provided in pairs. The pair of first caster sections 13 are provided spaced apart in the width direction W that intersects (is perpendicular to) the longitudinal direction L of the cart body 12.

Each of the multiple second caster sections 14 is provided at a position between the third position P3 and the fourth position P4 of the cart body 12. The multiple second caster sections 14 are provided in pairs. The pair of second caster sections 14 are provided spaced apart in the width direction W that intersects (is perpendicular to) the longitudinal direction L of the cart body 12.

Each of the first to third mounting parts 21 to 23 is made of a metal material and has a rectangular tubular shape extending in the vertical direction. The third mounting part 23 is provided near the first caster part 13, that is, at the first position P1 and the second position P2 of the cart body 12. The arrangement of the third mounting part 23 is an example, and the third mounting part 23 may be provided at either the first position P1 or the second position P2. The fourth mounting part 28 is provided near the second caster part 14, that is, at the third position P3 and the fourth position P4 of the cart body 12. The arrangement of the fourth mounting part 28 is an example, and the fourth mounting part 28 may be provided at either the third position P3 or the fourth position P4. In this embodiment, no fence part is attached to the fourth mounting part 28, but the third fence part 26 may be attached to the fourth mounting part 28.

The first to third fence sections 24-26 are formed, for example, from a metal material in the same ladder shape, and their mounting positions can be interchanged. Any of the first to third fence sections 24-26 may be configured to be shorter in length in the vertical direction than the other fence sections (see FIG. 6). As shown in FIG. 4, the first to third fence sections 24-26 are configured to be detachable by being inserted into the inside of the first to third mounting sections 21-23. Each of the first to third fence sections 24-26 has a plurality of cross pieces 33 that are discretely arranged in the vertical direction. In this embodiment, the third fence section 26 is mounted to the third mounting section 23 at the first position P1.

As shown in Figures 1 and 3, one or more first shelf boards 27 are formed, for example, by bending a metal plate material into a flat plate shape using sheet metal processing. The first shelf board 27 may have one or more finger hooks 29. A store manager can lift up the first shelf board 27 spanning between the second fence section 25 and the third fence section 26 by hooking their fingers on one or more finger hooks 29. In this embodiment, a pair of finger hooks 29 are provided at both ends of the first shelf board 27 in the longitudinal direction L.

Alternatively, the first shelf 27 may be formed in a dustpan shape as shown in Fig. 6. In this case, the first shelf 27 has a bottom surface 27A that is inclined obliquely with respect to the horizontal plane, a contact surface 27B that extends perpendicular to the bottom surface 27A and contacts an item to prevent the item from falling off the bottom surface, and a partition piece 27C that divides the first shelf 27 in the longitudinal direction L. The partition piece 27C does not have to be provided.

As shown in Figs. 1 and 6, when the first shelf 27 is placed across the crossbar 33 of the second fence section 25 and the crossbar 33 of the third fence section 26, it occupies the two crossbars 33. Therefore, at the height (position) at which the first shelf 27 is placed, it is impossible to place a second shelf having a different length from the first shelf 27 between the first fence section 24 and the third fence section 26. Therefore, in normal use, the second shelf is not placed across the small gap between the first fence section 24 and the third fence section 26. Therefore, a vertically long storage space 34 that is connected vertically is usually secured between the first fence section 24 and the third fence section 26.

2 and 3, the one or more auxiliary caster parts 15 are configured by two pieces. One of the auxiliary caster parts 15 is provided at a position between the first end part 12A and the second position P2 in the longitudinal direction L. One of the auxiliary caster parts 15 is provided at a middle part of the pair of first caster parts 13 in the width direction W. A predetermined gap is provided between one wheel 15A of the auxiliary caster part 15 and the floor surface 35, so that the wheel 15A does not come into contact with the floor surface 35 under normal conditions. In other words, one of the auxiliary caster parts 15 is a caster part provided as a backup from the viewpoint of preventing the cart 11 from tipping over, and when a heavy object is placed near the first end part 12A of the cart body 12, it abuts against the floor surface 35 to prevent the cart 11 from tipping over.

The other of the auxiliary caster parts 15 is provided between the second end 12B and the fourth position P4 in the longitudinal direction L. The other of the auxiliary caster parts 15 is provided in the middle of the pair of second caster parts 14 in the width direction L. A predetermined gap is provided between the other wheel 15A of the auxiliary caster part 15 and the floor surface 35, so that the wheel 15A does not come into contact with the floor surface 35 under normal conditions. In other words, the other of the auxiliary caster parts 15 is a caster part provided as a backup from the viewpoint of preventing the cart 11 from tipping over, and when a heavy object is placed near the second end 12B of the cart body 12, it can prevent the cart 11 from tipping over by abutting against the floor surface 35. The cart body 12, the first caster part 13, the second caster part 14, and the first to third mounting parts 21 to 23 are formed in a point symmetric (two-fold rotational symmetric) shape with respect to the center of gravity G.

Next, the operation of the trolley 11 of this embodiment will be described with reference to Figures 5 and 6. The store manager can use the trolley 11 in the usage mode (first usage mode) shown in Figure 5. That is, as shown in Figure 5, two foldable containers 36 are placed on one first shelf 27 in the back yard of the store. Relatively small items are stored in the foldable containers 36. In the space 34 between the first fence section 24 and the third fence section 26, a plurality of items 37 stored in cardboard boxes are placed in a vertically stacked state. At this time, a load of the plurality of items 37 in the vertically stacked state is applied near the first end 12A of the trolley body 12. In this state, if the cart 11 is about to tip over due to the weight of the multiple items 37 stacked vertically while it is being moved, the cart 11 rotates with the first caster portion 13 as a fulcrum in a direction in which the first end portion 12A is lowered, and one of the auxiliary caster portions 15 comes into contact with the floor surface 35. This prevents the cart 11 from tipping over.

In addition, in normal use, the first caster section 13 and the second caster section 14 are in contact with the floor surface 35, but the auxiliary caster section 15 is not in contact with the floor surface 35. Therefore, friction generated by the auxiliary caster section 15 does not increase resistance during movement. The action of the other auxiliary caster section 15 is the same as that of the one auxiliary caster section 15. The cart 11 can be used not only to store items (stock) in the back yard, but also to be moved by the store manager from the back yard to the vicinity of the store's display shelves, and can be used to stock and display items on the shelves.

The store manager can also use the cart 11 in a usage mode (second usage mode) as shown in FIG. 6. In this usage mode, the cart 11 is placed in the back yard as shown in FIG. 6 (there is no empty box 42). In this usage mode, the first fence portion 24 is configured to have a shorter vertical length than in the first usage mode. The first shelf 27 is not flat, but is formed, for example, in a dustpan shape. Therefore, the store manager can directly place the beverage cans 38 or bottles removed from the box on the upper dustpan-shaped first shelf 27. In this state, the bottom surface 27A and the contact surface 27B inclined relative to the horizontal plane act to prevent the beverage cans 38 or bottles from falling off the first shelf 27 when placed in the back yard or while the cart 11 is moving.

Opened beverage cans 39 and bottles in boxes can be placed on the first shelf 27, which is in the shape of a dustpan on the lower side. Furthermore, beverage cans and bottles in unopened boxes 41 can be placed on the placement surface 31 of the trolley body 12. The trolley 11 can be used not only to store items (stock) in the backyard, but also to be moved by the store manager from the backyard to the vicinity of the store's display shelves and to display and stock items on the display shelves. Empty boxes 42 generated during stocking can be held in the space 34 between the first fence section 24 and the third fence section 26 shown in FIG. 6, for example. Therefore, after the store manager has completed the stocking and display work, the empty boxes 42 can be collected in the backyard while still placed on the trolley 11. The function of the auxiliary caster section 15 is the same as that of the first mode of use described above.

In this embodiment (first and second usage modes), the first caster section 13 and the second caster section 14 are positioned closer to the center of the cart body 12 (closer to the center of gravity G) than a typical cart 11, so that when the cart 11 is rotated around the center of gravity G, the moment of resistance acting on the cart 11 is smaller, resulting in a cart 11 that is easy to maneuver.

According to the first embodiment, the following can be said. The trolley 11 includes a trolley body 12 having a first end 12A and a second end 12B opposite to the first end 12A, a first position P1 on the underside of the trolley body 12, the first position P1 being moved from the first end 12A along the longitudinal direction L by approximately 1/3 of the length of the trolley body 12 in the longitudinal direction L, and a second position P2 being moved from the first end 12A along the longitudinal direction L by approximately 1/6 of the length of the trolley body 12 in the longitudinal direction L, and a plurality of first caster parts 13 on the underside of the trolley body 12, the first position P1 being moved from the second end 12B along the longitudinal direction L by approximately 1/3 of the length of the trolley body 12 in the longitudinal direction L. The trolley body 12 includes a plurality of second caster parts 14 provided between a third position P3 moved along the longitudinal direction L and a fourth position P4 moved from the second end 12B along the longitudinal direction L by a length of approximately 1/6 of the length of the longitudinal direction L of the trolley body 12, a first mounting part 21 provided at the first end 12A of the trolley body 12 and to which the first fence part 24 can be attached and detached, a second mounting part 22 provided at the second end 12B of the trolley body 12 and to which the second fence part 25 can be attached and detached, and a third mounting part 23 provided on the trolley body 12 near the plurality of first caster parts 13 and to which the third fence part 26 can be attached and detached.

In general, the resistance force acting on the caster parts while the cart 11 is moving cannot be reduced to zero. Therefore, if the caster parts are placed far from the center of gravity G of the cart 11, the arm of the moment becomes longer, and a relatively large moment of resistance due to the above-mentioned resistance force occurs when the cart 11 is rotated (turned) around the center of gravity G at an intersection of an aisle in a store. This large moment of resistance is one of the reasons why the store manager feels that the cart 11 is heavy when rotating it. In addition, if the caster parts are placed far from the center of gravity G of the cart 11, there is a possibility that the caster parts will run over the foot of the store manager when the cart 11 is rotated around the center of gravity G. On the other hand, if the caster parts are placed too close to the center of gravity G, the moment of resistance becomes smaller and the cart 11 becomes easier to rotate, but there is a risk that the cart 11 will tip over when a heavy object is placed near the end of the cart body 12.

According to the above configuration, the first caster section 13 and the second caster section 14 are disposed moderately close to the center of gravity G of the cart body 12, so that the cart 11 can be easily rotated, and the caster section is unlikely to come into contact with the foot of the store manager when rotating the cart 11 around the center of gravity G. In addition, even if a heavy object is placed near the end of the cart body 12, the cart 11 is unlikely to tip over, and a sufficient load capacity can be ensured. Furthermore, in addition to the first fence section 24 and the second fence section 25, the third fence section 26 is installed near the first caster section 13, which is close to the center of gravity G of the cart body 12. Therefore, when rotating the cart 11, the store manager can rotate the cart 11 by placing his hands on multiple fence sections at the same time, for example, by holding the second fence section 25 with his left hand and pulling it toward himself, and holding the third fence section 26 with his right hand and pushing it toward himself. By positioning the third fence portion 26 between the first fence portion 24 and the second fence portion 25 in this way, the store manager can easily generate a rotational force on both sides of the center of gravity G of the cart 11. This allows the store manager to easily generate a couple moment on the cart 11 using the first to third fence portions 24 to 26, thereby allowing the cart 11 to easily rotate around the center of gravity G. This makes it possible to provide a cart 11 that is easy to move around in the store.

The trolley 11 is provided with auxiliary caster parts 15 provided on the underside of the trolley body 12, between the first end 12A and the second position P2. With this configuration, the auxiliary caster parts 15 are provided on the outside of the first caster parts 13, so that even if a heavy object is placed near the first end 12A of the trolley body 12, the trolley body 12 can be supported by the auxiliary caster parts 15, and the trolley 11 can be effectively prevented from tipping over.

The auxiliary caster section 15 is provided so that there is a predetermined gap between its wheel 15A and the floor surface 35. This configuration makes it possible to prevent the auxiliary caster section 15 from constantly contacting the floor surface 35. This prevents the auxiliary caster section 15 from generating friction when the trolley 11 rotates, making it difficult for the trolley 11 to rotate. In addition, when a heavy object is placed near the first end 12A of the trolley body 12, the trolley body 12 rotates around the first caster section 13 as a fulcrum, and the auxiliary caster section 15 comes into contact with the floor surface 35. This effectively prevents the auxiliary caster section 15 from coming into contact with the floor surface 35 only when necessary, causing the trolley 11 to tip over.

The first caster sections 13 are arranged in pairs spaced apart in the width direction W of the cart body 12, which intersects with the longitudinal direction L, and the auxiliary caster section 15 is provided in the middle of the pair of first caster sections 13.

With this configuration, when a heavy object is placed near the first end 12A of the trolley body 12 and the auxiliary caster section 15 comes into contact with the floor surface 35, the pair of first caster sections 13 and the auxiliary caster section 15 come into contact with the floor surface 35 at three points (three points forming a triangle), so the position of the trolley 11 is stable and the trolley 11 can be prevented from tipping over.

The trolley 11 is provided with a first shelf 27 that is placed between the second fence portion 25 attached to the second mounting portion 22 and the third fence portion 26 attached to the third mounting portion 23, and is configured such that it is impossible to place a second shelf having a different length from the first shelf 27 between the first fence portion 24 attached to the first mounting portion 21 and the second fence portion 25 attached to the second mounting portion 22.

According to this configuration, a space 34 that is open in the vertical direction is provided between the first fence portion 24 attached to the first mounting portion 21 and the second fence portion 25 attached to the second mounting portion 22 because no shelves are installed therebetween. The store manager can use this space 34 to collect and store empty cardboard packaging boxes 42 and the like, or to stack large items 37. This makes it possible to realize a cart 11 with divided spaces that can be used for a variety of purposes within a single cart 11. This makes it possible to realize a multi-purpose cart 11, improving convenience for the store manager.

The third mounting portion 23 is provided at the first position P1. With this configuration, the third fence portion 26 can be installed at a position moved from the first end portion 12A along the longitudinal direction L by approximately 1/3 of the length of the longitudinal direction L of the cart body 12. As a result, approximately 2/3 of the space of the cart 11 can be used as a space where shelves are installed as in the conventional case, and the remaining space 34, approximately 1/3 of the cart 11, can be used as free space with no shelves. This realizes a versatile cart 11 while ensuring sufficient loading capacity, improving convenience for store managers.

In the following embodiment, differences from the first embodiment will be mainly described, and illustrations or descriptions of parts common to the first embodiment will be omitted.
[Second embodiment]

The second embodiment of the bogie 11 will be described with reference to Figures 7 and 8. The bogie 11 of this embodiment differs from the first embodiment in the attachment position of the third fence portion 26 to the bogie body 12.

In this embodiment, the third fence portion 26 is detachably attached to the third mounting portion 23 provided at the second position P2. A flat first shelf plate 27 is placed between the second fence portion 25 and the third fence portion 26. The space 34 between the third fence portion 26 and the first fence portion 24 is smaller than in the first embodiment. Therefore, the dimension between the third fence portion 26 and the first fence portion 24 is such that it is impossible to place a second shelf plate having a different length from the first shelf plate 27.

The operation of the cart 11 of this embodiment will be described with reference to Figures 7 and 8. As shown in Figure 7, by appropriately adding the first shelf board 27 to the space between the second fence portion 25 and the third fence portion 26, it is possible to use it in the same manner as the first use mode of the first embodiment. On the other hand, as shown in Figure 8, the space 34 between the third fence portion 26 and the first fence portion 24 can be used in the same manner as the second use mode of the first embodiment, such as by appropriately placing empty boxes 42 of items. In other words, the cart 11 can be used not only to store items (inventory) in the backyard, but also to be moved by the store manager from the backyard to the vicinity of the store's display shelves, and can be used to stock and display items on the display shelves as they are. The empty boxes 42 generated during stocking can be held, for example, in the space 34 between the first fence portion 24 and the third fence portion 26. Therefore, after the store manager has completed the stocking and display work, the empty boxes 42 can be collected to the backyard with the empty boxes 42 placed on the cart 11 as they are. The function of the auxiliary caster section 15 is the same as in the first embodiment described above.

In this embodiment, the first caster section 13 and the second caster section 14 are positioned closer to the center (center of gravity G) of the cart body 12 than in a typical cart 11, so that when the cart 11 is rotated around the center of gravity G, the moment of resistance acting on the cart 11 is reduced, resulting in a cart 11 that is easy to maneuver.

According to this embodiment, the following can be said. The third mounting portion 23 is provided at the second position P2. With this configuration, the third fence portion 26 can be installed at a position moved from the first end portion 12A along the longitudinal direction L by a length of approximately 1/6 of the length of the longitudinal direction L of the cart body 12. As a result, approximately 5/6 of the space of the cart 11 can be used as a space where shelves are installed as in the conventional case, and the remaining approximately 1/6 of the space 34 of the cart 11 can be used as a free space without shelves. This realizes a cart 11 with sufficient loading capacity and multiple uses, improving the convenience of the store manager.
[Third embodiment]

The trolley 11 of the third embodiment will be described with reference to Figure 9. The trolley 11 of this embodiment differs from the first embodiment in that the third fence portion 26 is not attached to the third mounting portion 23.

In the present embodiment, the cart 11 has a first shelf 27 stretched between the first fence portion 24 and the second fence portion 25. Articles are placed on this first shelf 27. The cart 11 can be used not only for storing articles (inventory) in the back yard, but also for stocking and displaying articles by moving the cart 11 directly to the vicinity of display shelves in the store.
According to this embodiment, the trolley 11 is not divided by the third fence portion 26 at a position midway in the longitudinal direction L, and can be used as a normal trolley 11 having one large storage section.
[Fourth embodiment]

The cart 11 of the fourth embodiment will be described with reference to FIG. 10. The cart 11 of this embodiment differs from the first embodiment in that it does not have an auxiliary caster portion 15.

In this embodiment, the auxiliary caster parts 15 are not provided, but even if the auxiliary caster parts 15 are not provided, the lower end of the first mounting part 21 (first lower end 21A) and the lower end of the second mounting part 22 (second lower end 22A) essentially act as a stopper. Therefore, unless a very large load is applied forcefully near the first end 12A or the second end 12B, the cart 11 will not tip over. Therefore, by omitting the auxiliary caster parts 15, the manufacturing cost of the cart 11 can be further reduced. As a result, a cart 11 can be realized that has sufficient load capacity, is versatile, and is inexpensive to manufacture.

The above-described embodiments can be implemented with various substitutions and modifications. Naturally, the above-described embodiments can also be combined in an appropriate manner to realize the invention.

11 Cart 12 Cart body 12A First end 12B Second end 13 First caster portion 14 Second caster portion P1 First position P2 Second position P3 Third position P4 Fourth position 15 Auxiliary caster portion 15A Wheel 21 First mounting portion 22 Second mounting portion 23 Third mounting portion 24 First fence portion 25 Second fence portion 26 Third fence portion 27 First shelf

Claims (5)

A carriage body having a first end and a second end opposite to the first end;
a plurality of first caster portions provided on the underside of the cart body at positions between a first position moved from the first end portion along the longitudinal direction by a length that is approximately 1/3 of the longitudinal length of the cart body, and a second position moved from the first end portion along the longitudinal direction by a length that is approximately 1/6 of the longitudinal length of the cart body;
a plurality of second caster portions provided on the underside of the cart body at positions between a third position moved from the second end portion along the longitudinal direction by approximately 1/3 of the longitudinal length of the cart body, and a fourth position moved from the second end portion along the longitudinal direction by approximately 1/6 of the longitudinal length of the cart body;
an auxiliary caster portion provided on a lower side of the cart body at a position between the first end portion and the second position;
A first mounting portion provided at the first end portion of the carriage body and capable of detachably mounting a first fence portion;
A second mounting portion provided at the second end portion of the carriage body and capable of detachably mounting a second fence portion;
A third mounting portion provided on the cart body near the plurality of first caster portions and to which a third fence portion can be attached and detached;
Equipped with
The plurality of first caster portions are provided in pairs spaced apart from each other in a width direction of the carriage body that intersects with the longitudinal direction,
The auxiliary caster portion is a cart provided at a middle portion of the pair of first caster portions . The cart according to claim 1 , wherein the auxiliary caster portion is provided so as to have a predetermined gap between the wheel and the floor surface. A first shelf board disposed between the second fence portion attached to the second mounting portion and the third fence portion attached to the third mounting portion;
Equipped with
A trolley as described in claim 1 or claim 2, configured so that it is impossible to pass a second shelf plate of a different length from the first shelf plate between the first fence portion attached to the first mounting portion and the third fence portion attached to the third mounting portion. The bogie according to claim 3 , wherein the third mounting portion is provided at the first position. The bogie according to claim 3 , wherein the third mounting portion is provided at the second position.

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