Cargo box transfer cart, handcart, and cargo box transfer system

Abstract

To provide a cargo box transfer cart that allows easy movement of a cargo box from a cargo platform and exhibits an excellent space-saving property when not in use.SOLUTION: A cargo box transfer cart 1 comprises: a frame body 10; a loading section 20 for cargo boxes; a plurality of cart-side wheels 25; a pair of first stopper sections 30, 30 for limiting movement of the cargo box in a width direction; and a pair of right and left flaps 40, 40 provided on a front end side. The first stopper sections 30 can move back and forth between a protruding state of protruding forward from the frame body 10 and a non-protruding state, and also can move up and down between a limiting state of protruding upward from the frame body 10 to limit the movement of the cargo box in the width direction of the vehicle, and a non-limiting state of not protruding. The flap 40 can rotate between a backward rolling state of facing the loading section 20 side, and an expanded state of protruding outside the loading section 20. The frame body 10 comprises: a pair of frames 11, 11; and a beam member 15 bridged between the frames 11, 11. The frame 11 can be divided into separate frames 12, 12.SELECTED DRAWING: Figure 1

Description

【Technical Field】 【0001】 The present invention relates to a cargo box transfer cart for transferring a cargo box, a cargo box transfer system, and a rear car using the cargo box transfer cart. 【Background Art】 【0002】 Conventionally, a container (cargo box) loaded on a loading platform such as a vehicle may be removed from the loading platform and stored outside the vehicle. Also, when using the container for purposes such as merchandise sales outside the vehicle, a large dedicated lifting device or forklift is used to transfer the container to a dedicated mounting table. For the transfer of the above-described container, for example, a lifter device that attaches and detaches the container from the loading platform using a pair of four lifters on the left and right is used (for example, Patent Document 1). 【Prior Art Documents】 【Patent Documents】 【0003】 【Patent Document 1】 Japanese Patent Application Laid-Open No. 2000-118969 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0004】 The lifting device described in Patent Document 1 above has a lifting mechanism using an actuator and is configured as a large, dedicated lifting device. Furthermore, the lifting device described in Patent Document 1 above is only for lifting and moving containers, and if the container is to be used for purposes such as selling goods, it is necessary to move the container to a dedicated loading platform. This presents a problem of labor time and cost for moving the container to the loading platform. In addition, even if the loading platform is not in use, it requires storage space equivalent to that of the container. Moreover, the lifting device described in Patent Document 1 above is fixed to the floor and cannot be easily moved, so it has the problem of being usable only in a designated location. Also, if it is necessary to use a loading platform at the destination of the vehicle, it is necessary to prepare a separate loading platform at the destination as well. For this reason, there is a need for a cargo box transfer trolley that can easily move containers from the truck bed using only human power and can be used in a space-saving manner. 【0005】 Therefore, the present invention aims to provide a cargo box transfer cart and cargo box transfer system that can easily move cargo boxes from a cargo bed using only human power and is excellent in space saving when not in use. The present invention also aims to provide a cargo box transfer cart that can be used as a handcart. Furthermore, the present invention aims to provide a cargo box transfer cart and cargo box transfer system that can suppress the displacement of cargo boxes when moving them from the cargo bed of a vehicle or the like, thereby preventing them from falling off the cargo bed. [Means for solving the problem] 【0006】 (1) The cargo box transfer trolley of the present invention, provided to solve the above-mentioned problems, comprises: a frame formed to support at least a part of the bottom surface of a cargo box; a mounting portion formed on the upper side of the frame on which the cargo box can be placed; a plurality of trolley-side wheels that support the frame so as to be able to move; a pair of first stopper portions provided on both sides of the frame in the vehicle width direction to restrict the movement of the cargo box in the vehicle width direction; and a pair of flaps provided on both sides of the frame in the vehicle width direction and provided on the front end side of the mounting portion described above, wherein the first stopper portions are The flap is capable of forward and backward movement between a protruding state in which it protrudes forward from the frame and a non-protruding state in which it does not protrude forward from the frame, and vertical movement between a restricted state in which it protrudes upward from the frame and restricts movement in the width direction of the cargo box and an unrestricted state in which it does not protrude upward from the frame. The flap is supported so as to be rotatable around an axis along the vehicle width direction and is capable of rotation between a reversed state facing the mounting part and an extended state protruding to the outside of the mounting part. 【0007】 The above-described cargo box transfer trolley can be configured to restrict the movement of the cargo box in the width direction by having the first stopper portion protrude above the frame. This prevents the cargo box from shifting in the width direction and falling off during transfer. Furthermore, the above-described cargo box transfer trolley can transfer the cargo box to the platform while restricting the movement of the cargo box in the width direction with the first stopper portion, thus preventing contact between the vehicle and the cargo box. In addition, the above-described cargo box transfer trolley can be configured to have an unrestricted state by moving the pair of first stopper portions up and down so that they do not protrude above the frame. This allows the above-described cargo box transfer trolley to be used with a flat surface when used as a stage or display stand. Furthermore, with this configuration, the above-described cargo box transfer trolley can be configured to allow for the opening and closing of the cargo box door without hindrance and to easily attach and detach tools to the sides of the cargo box. Furthermore, the aforementioned cargo box transfer trolley allows the first stopper to be adjusted to any desired height even while the cargo box is being used for merchandise sales, thus preventing any disruption to merchandise sales while still functioning as a stopper. 【0008】 Furthermore, the aforementioned cargo box transfer trolley allows the first stopper portion to move back and forth between a protruding state, where it protrudes forward of the frame, and a non-protruding state, where it does not protrude forward of the frame. This allows the aforementioned cargo box transfer trolley to protrude the first stopper portion toward the loading platform when transferring a cargo box, thereby overlapping it with the loading platform. As a result, even if there is a gap between the loading platform and the cargo box transfer trolley, the aforementioned cargo box transfer trolley can guide the cargo box onto the loading platform without it shifting laterally at the first stopper portion. In addition, when transferring a cargo box, the aforementioned cargo box transfer trolley allows the flap to be extended to protrude outside the mounting portion, thereby overlapping the flap with the loading platform. As a result, the aforementioned cargo box transfer trolley does not require the preparation or height adjustment of trolleys of different heights for each loading platform height. Furthermore, even if there is a gap or height difference between the loading platform and the cargo box transfer trolley, the aforementioned cargo box transfer trolley can absorb the gap or height difference and stably transfer the cargo box. As a result, the aforementioned cargo box transfer trolley can stably transfer cargo boxes while suppressing vibrations of the cargo boxes. 【0009】 (2) In the cargo box transfer trolley of the present invention described above, the frame body comprises a pair of rectangularly shaped frame frames, at least two trolley-side wheels provided on the lower end sides of the pair of frame frames, and at least one beam member that spans between the pair of frame frames along the vehicle width direction, wherein the frame frames and the beam member are configured to be detachable. 【0010】 The aforementioned cargo box transfer trolley, with this configuration, can be disassembled into a pair of frame members and at least one beam member. This reduces the storage space required for the cargo box transfer trolley. Furthermore, the cargo box transfer trolley can be stored in a cargo box in its disassembled state, for example, and then reassembled and used at the destination. Therefore, there is no need to prepare a cargo box transfer trolley for each destination, which reduces the cost of preparing multiple cargo box transfer trolleys and eliminates the need to secure storage space at the destination. 【0011】 (3) The cargo box transfer trolley of the present invention described above is characterized in that the frame frame is formed of divided frame frames, each divided into at least two, and each divided frame frame is configured to be detachably attached to adjacent to each other in the front-rear direction, and at least two of the trolley-side wheels are assigned to one of the divided frame frames. 【0012】 The aforementioned cargo box transfer trolley, by adopting this configuration, can further reduce the size of its frame, thereby reducing the storage space required. Here, it is preferable that each of the multiple segmented frame sections be formed to be the same shape. With this configuration, the aforementioned cargo box transfer trolley can store each of its segmented frame sections stacked on top of each other, thus efficiently utilizing the storage space. 【0013】 (4) In the cargo box transfer trolley of the present invention described above, the frame has at least one second stopper portion on each of the front end and rear end sides, and the second stopper portion is characterized in that it is able to move up and down between a restricted state in which it protrudes above the frame to restrict the movement of the cargo box in the front-rear direction, and an unrestricted state in which it does not protrude above the frame. 【0014】 The aforementioned cargo box transfer trolley can restrict the forward and backward movement of the cargo box by having the second stopper portion protrude above the frame. This prevents the cargo box from unexpectedly moving forward or backward, thus preventing the cargo box from falling off the trolley. Furthermore, by having the second stopper portion of the aforementioned cargo box transfer trolley in an unrestricted state where it does not protrude above the frame, the cargo box can be moved smoothly when transferring it to a cargo bed or the like. 【0015】 (5) The cargo box transfer trolley of the present invention described above is preferably characterized in that a top plate is provided in at least a part of the frame. 【0016】 The aforementioned cargo box transfer cart, with this configuration, can be used, for example, as a display stand for goods after the cargo boxes have been unloaded. Therefore, the aforementioned cargo box transfer cart is expected to be useful at flea markets and the like. Furthermore, by configuring the aforementioned cargo box transfer cart so that the frame can be divided into two parts, it can be used as two display stands, thus further increasing its potential use at flea markets and the like. In addition, the aforementioned cargo box transfer cart can be used as a stage or the like by utilizing its top plate. 【0017】 (6) The handcart of the present invention, provided to solve the above-mentioned problems, is characterized in that it uses the above-mentioned cargo box transfer trolley, has a top plate provided on at least a part of the frame, has at least a pair of trolley-side wheels provided on both sides in the width direction of the frame and behind the beam member, and is configured to be movable by lifting and towing the beam member. 【0018】 The aforementioned cargo box transfer cart can be used as a handcart by this configuration. Therefore, the aforementioned handcart can be used to transport goods at destinations such as outdoors without having to prepare a separate cart. Furthermore, by configuring the frame of the cargo box transfer cart to be separable into two parts, the aforementioned handcart can be used as two separate handcarts, which is expected to further improve work efficiency. 【0019】 (7) The cargo box transfer system of the present invention, provided to solve the above-mentioned problems, is a cargo box transfer system for transferring a cargo box between a cargo box transfer trolley and a vehicle having a cargo bed, wherein the vehicle has a pair of side tailgate members provided on both sides in the vehicle width direction and a rear tailgate member provided on the rear end side of the side tailgate members, the frame has a positioning portion at the center in the vehicle width direction at the front end side, the positioning portion has a reference portion that serves as a reference for positioning and a hook portion provided on the front end side of the frame, a hinge member is provided in the center of the rear tailgate member, the hook portion is engageable in the gap between the cargo bed and the rear tailgate member at both ends of the hinge member, and the rear tailgate member is rotated backward toward the outside of the cargo bed, the reference portion is aligned with the center of the hinge member and the hook portion is engaged in the gap, and the vehicle and the cargo box transfer trolley are connected. 【0020】 The aforementioned cargo box transfer system has a positioning section on the frame, allowing the cargo box transfer trolley to be easily and accurately positioned on the vehicle's cargo bed. Furthermore, with the frame positioned relative to the cargo bed, the hook section can be engaged with the gap between the cargo bed and the rear tailgate member, allowing the frame and cargo bed to be fixed in place. Therefore, the aforementioned cargo box transfer system can prevent the cargo box from shifting from the cargo bed even if vibrations occur during cargo box transfer. In addition, since positioning can be done using the hinge member in the center of the rear tailgate member, there is no need to apply separate positioning markings to the vehicle. Thus, improved versatility can be expected. 【0021】 (8) The cargo box transfer system of the present invention described above is characterized in that a pair of guide members are provided on both sides of the cargo bed in the vehicle width direction, and the guide members are formed to extend along the front-rear direction of the cargo bed, and the guide members have a guide surface that guides the cargo box side wheels or at least a part of the lower surface of the cargo bed, a third stopper portion that restricts the movement of the cargo box in the vehicle width direction, and an engaging portion that can engage with the gap between the cargo bed and the side panel member. 【0022】 By engaging the engaging portion of the guide member in the gap between the loading platform and the side aoli member, the third stopper portion can be easily formed on the side surface of the loading platform in the above-described cargo box transfer system. Further, since the third stopper portion can restrict the movement of the cargo box in the vehicle width direction, it is possible to prevent the cargo box from shifting and falling from the loading platform or coming into contact with the side aoli member or the like. Further, since the guide member has a guide surface, even if the surface of the loading platform has irregularities, the irregularities can be covered. Thereby, the above-described cargo box transfer system can stably load the cargo box on the loading platform. Further, since the guide member can be easily attached to and detached from various vehicles, an improvement in versatility can be expected. 【Effects of the Invention】 【0023】 According to the present invention, it is possible to provide a cargo box transfer cart and a cargo box transfer system that can easily move the cargo box from the loading platform and are excellent in space-saving when not in use. Further, according to the present invention, it is possible to provide a cargo box transfer cart that can also be used as a rear car. Further, according to the present invention, it is possible to provide a cargo box transfer cart and a cargo box transfer system that can suppress the fall from the loading platform by suppressing the displacement of the cargo box when moving the cargo box from the loading platform of a vehicle or the like. 【Brief Description of the Drawings】 【0024】 [Figure 1] It is an overall perspective view of a cargo box transfer cart according to an embodiment of the present invention. [Figure 2] It is a perspective view showing a state in which a cargo box is loaded on a cargo box transfer cart according to an embodiment of the present invention. [Figure 3] It is an overall perspective view of a cargo box transfer system of the present invention showing a state in which the cargo box transfer cart of the present invention is connected to the loading platform of a vehicle. [Figure 4] It is an overall perspective view of a cargo box transfer system of the present invention showing a state in which a cargo box is transferred from the loading platform of a vehicle to the cargo box transfer cart of the present invention. [Figure 5] It is a perspective view showing a disassembled state of a cargo box transfer cart according to an embodiment of the present invention. [Figure 6](a) is an explanatory diagram showing the case in which the first stopper portion constituting the cargo box transfer device according to one embodiment of the present invention is in a non-protruding state toward the front, and (b) is an explanatory diagram showing the case in which the first stopper portion is in a protruding state toward the front. [Figure 7] This is a partially enlarged perspective view showing the first stopper portion, which constitutes a cargo box transfer device according to one embodiment of the present invention, protruding toward the cargo bed side (forward side) of the vehicle. [Figure 8] This is a partially enlarged perspective view of a flap constituting a cargo box transfer trolley according to one embodiment of the present invention. [Figure 9] (a) and (b) are explanatory diagrams of flaps constituting a cargo box transfer trolley according to one embodiment of the present invention. [Figure 10] (a) is a magnified photograph of a portion of the positioning part (hook part) that constitutes a cargo box transfer trolley according to one embodiment of the present invention, and (b) is a magnified photograph of a portion of the positioning part (reference part). [Figure 11] (a) is a perspective view of a guide member constituting a cargo box transfer trolley according to one embodiment of the present invention, and (b) is a perspective view showing the guide member attached to the cargo bed of a vehicle. [Figure 12] (a) and (b) are front views showing one embodiment of a lifting device used for loading and unloading cargo boxes onto a cargo box transfer trolley according to the present invention. [Figure 13] This is a flowchart illustrating the assembly of a cargo box transfer trolley according to one embodiment of the present invention. [Figure 14] This is a flowchart illustrating the disassembly of a cargo box transfer trolley according to one embodiment of the present invention. [Figure 15] This is a flowchart illustrating the process of transferring a cargo box from a vehicle to the cargo box transfer trolley of the present invention. [Figure 16] This is a flowchart that continues from Figure 15. [Figure 17] (a) is an explanatory diagram showing the state in which a display stand is moved using the cargo box transfer trolley of the present invention, and (b) is an explanatory diagram showing the state in which the cargo box transfer trolley of the present invention is used as a handcart. [Figure 18](a) and (b) are explanatory diagrams showing one embodiment of a display stand and stage utilizing the cargo box transfer trolley of the present invention. [Modes for carrying out the invention] 【0025】 The details of the cargo box transfer trolley 1 according to an embodiment of the present invention will be described below with reference to the attached drawings. These drawings are schematic and do not necessarily represent the sizes in precise proportions. Also, in the drawings, similar components are indicated by the same reference numerals. 【0026】 First, in order to explain the cargo box transfer trolley 1, we will describe the vehicle 5 equipped with a cargo platform 6, which will be used in the cargo box transfer system 100 described later. 【0027】 As shown in Figures 3 and 4, the vehicle 5 is, for example, a self-propelled light truck and has a cargo bed 6 at the rear. The cargo bed 6 comprises a pair of side tailgate members 6A, 6A (one side not shown) provided on both sides in the vehicle width direction, and a rear tailgate member 6B. 【0028】 The side tailgate members 6A, 6A are formed from rectangular plate-shaped members that are longitudinal in the front-rear direction. The base ends of the side tailgate members 6A, 6A are rotatably supported by hinge members (not shown). The side tailgate members 6A, 6A can be rolled over toward the outside of the vehicle 5. A gap Ga (see Figure 7 and Figure 11(a)) is formed between the side tailgate members 6A and the cargo bed 6, allowing engagement of the guide member 70, which will be described later. 【0029】 The rear tailgate member 6B is formed from a rectangular plate-shaped member whose length is in the vehicle width direction. The base end of the rear tailgate member 6B is rotatably supported by a hinge member 6C [see Figure 10(a)]. The rear tailgate member 6B can be rotated backward toward the outside of the vehicle 5. A gap Gb is formed between the rear tailgate member 6B and the cargo bed 6, allowing engagement of the hook portion 63, which will be described later. 【0030】 In this embodiment, a pair of guide members 70, 70, described later, are engaged in the gap Ga between the cargo bed 6 and the side panel members 6A, 6A. Details of the guide members 70, 70 will be described later. 【0031】 The above is an example of vehicle 5. Next, we will explain in detail the cargo box 2 that is loaded onto vehicle 5. 【0032】 The cargo box 2 is formed in a rectangular box shape and is equipped with opening and closing doors 2A (see Figure 18) on the rear or side, for example. As shown in Figures 3 and 4, in this embodiment, a pair of lift devices 200, 200 (the lift devices 200, 200 on the rear side are not shown) are provided on each of the two opposing sides 3, 3 of the cargo box 2. In other words, a total of four lift devices 200 are provided. 【0033】 As shown in Figures 12(a) and 12(b), the lifting device 200 includes a support portion 210, an engaging portion 215 that can engage with the cargo box 2, a rotating lever 220, a link portion 230, and cargo box side wheels 240, etc. For the purposes of this explanation, the "pushing up" of the cargo box 2 may also be referred to as "lift-up". Furthermore, in the illustration, rotation of the rotating lever 220 in the counterclockwise direction may be described as the lift-up direction, and rotation of the rotating lever 220 in the clockwise direction may be described as the lift-down direction. 【0034】 The lifting device 200 can push the cargo box 2, which is in a non-lifted state (grounded state), up to a lifted state (lifted-up state). 【0035】 The support portion 210 supports each component of the lifting device 200, and in this embodiment, it is formed of a plate-shaped member. The support portion 210 is detachable from the cargo box 2. Specifically, the support portion 210 is attached to and detached from the sides 3, 3 of the cargo box 2 by screwing fastening members such as bolts or wing nuts into fastening holes 214, 214 provided on both sides of the lower end of the support portion 210. The support portion 210 is also formed inclined to widen from the upper edge 211 towards the lower middle portion. A rotation axis 212, which serves as the rotation center of the rotating lever 220, is erected near the center of the support portion 210. An arc-shaped hole 213 is formed on the lower side of the support portion 210. The arc-shaped hole 213 is formed as part of the circumference centered on the pivot axis 235, which will be described later. 【0036】 The engaging portion 215 is connected to the support portion 210 and can engage with the cargo box 2 when the support portion 210 is attached to the cargo box 2 (sides 3,3). In this embodiment, the engaging portion 215 is formed by bending the lower end of the support portion 210 inward (towards the cargo box 2). In this embodiment, the engaging portion 215 is configured to engage with the bottom surface of the cargo box 2. 【0037】 The rotating lever 220 is rotatably supported on the rotation axis 212 of the support portion 210. The rotating lever 220 can be rotated between the non-lifted state shown in Figure 12(a) and the lifted state shown in Figure 12(b). The rotating lever 220 acts as the point of force application in a lever and is formed to an appropriate length so that it can be operated against the load of the cargo box 2. 【0038】 The link section 230 is connected to the rotating lever 220 and is intended to convert the rotational motion of the rotating lever 220 into vertical motion. The link section 230 includes the aforementioned rotating shaft 212 that rotatably supports the rotating lever 220, and an eccentric shaft 233 that is positioned eccentrically with respect to the rotating shaft 212 and is rotatable with respect to the rotating lever 220. In addition to the above, the link section 230 also includes a first link member 234, a pivot shaft 235, a second link member 236, and the like. 【0039】 The first link member 234 is formed from a vertically elongated plate-like member. One end (upper end) of the first link member 234 is rotatably supported on the eccentric shaft 233. The other end (lower end) of the first link member 234 is rotatably supported on the axle 241 of the cargo box side wheel 240. Furthermore, the first link member 234 has a locking portion 237 formed on its upper end that can be locked into the rotating shaft 212. The first link member 234 can convert the eccentric motion associated with the rotation of the rotation lever 220 into vertical motion. 【0040】 The pivot shaft 235 is supported (erected) by the support portion 210 and is positioned eccentrically with respect to the axle 241. In this embodiment, the pivot shaft 235 is located near the lower right side of the support portion 210. 【0041】 The second link member 236 is formed from a vertically elongated plate-like member. One end of the second link member 236 is rotatably supported on the pivot shaft 235, and the other end is rotatably supported on the axle 241. Therefore, the second link member 236 can pivot integrally with the axle 241 around the pivot shaft 235. 【0042】 The cargo box side wheels 240 are rotatably supported on the axle 241. The cargo box side wheels 240 are rotatably supported on the support portion 210 and are configured to be vertically movable via the link portion 230. 【0043】 The axle 241 is inserted through the arc-shaped hole 213 and is allowed to move along the arc-shaped hole 213. That is, the axle 241 can swing along the arc-shaped hole 213 as the second link member 236 rotates around the pivot axis 235. In other words, the cargo box side wheel 240 can swing relative to the support part 210 as the second link member 236 swings. As a result, the first link member 234 and the second link member 236 are linked as the rotation of the rotation lever 220, causing the cargo box side wheel 240 to move up and down. 【0044】 Furthermore, the cargo box-side wheels 240 protrude from the support portion 210 and make contact with the ground when the rotation lever 220 is rotated to the lifted position. As the cargo box-side wheels 240 make contact with the ground, the engaging portion 215 is pushed up, and the cargo box 2 is pushed up. In addition, as the cargo box-side wheels 240 make contact with the ground, the support portion 210 is allowed to move back and forth. 【0045】 As described above, the link portion 230 can push up the engaging portion 215 (cargo box 2) and bring the cargo box side wheels 240 to the ground by rotating the rotating lever 220 from a non-lifted position [see Figure 12(a)] to a lifted position. 【0046】 The locking portion 237 is provided on the upper end side of the link portion 230. The locking portion 237 is configured to lock with the rotating shaft 212 as the rotating lever 220 rotates. In this embodiment, the locking portion 237 is formed as an arc-shaped groove that opens in the opposite direction to the rotation direction of the rotating lever 220. The locking portion 237 locks with the rotating shaft 212 when the cargo box side wheels 240 are pushed down relative to the support portion 210. That is, the locking portion 237 rotates eccentrically as the rotating lever 220 rotates in the lift-up direction, and locks with the rotating shaft 212 when the rotating lever 220 has rotated to a position where it is in the lifted state. As a result, the link portion 230 is fixed when the cargo box 2 is in the lifted state (when the cargo box side wheels 240 are pushed down relative to the support portion 210), and the rotation of the rotating lever 220 in the lift-up direction is restricted. Therefore, the lifting device 200 described above can maintain the cargo box 2 in a stable lifted state while the cargo box 2 is lifted. 【0047】 On the other hand, the locking part 237 is released from the rotating shaft 212 as the cargo box side wheels 240 are pushed upward relative to the support part 210. In other words, when the rotating lever 220 is rotated in the lift-down direction (the direction in which the cargo box side wheels 240 are pushed upward relative to the support part 210) from the state in which the cargo box 2 is lifted up, the locking part 237 and the rotating shaft 212 are released from the locking part 237. Therefore, the lifting device 200 described above can smoothly lower the cargo box 2 when lowering it. 【0048】 The above describes the configuration of the cargo box 2 and the lifting device 200. Next, we will describe the details of the cargo box transfer trolley 1 according to one embodiment of the present invention. 【0049】 ≪Box transfer trolley≫ Figure 1 is an overall perspective view of the assembled cargo box transfer trolley 1. As will be described in detail later, the cargo box transfer trolley 1 can be disassembled into its individual parts (see Figure 5). The cargo box transfer trolley 1 comprises a frame 10 formed to support at least a portion of the bottom surface of the cargo box 2, a mounting section 20 on which the cargo box 2 can be placed, a plurality (four in this embodiment) of trolley-side wheels 25, a pair of first stopper sections 30, 30, and a pair of flaps 40, 40. In addition to the above, the cargo box transfer trolley 1 also comprises at least one second stopper section 50 and a positioning section 60, etc., which will be used in the cargo box transfer system 100 described later. Details of the positioning section 60 will be explained in the cargo box transfer system 100 described later. 【0050】 The frame 10 comprises a pair of rectangular frame frames 11, 11 whose longitudinal side is in the front-to-back direction, and bogie-side wheels 25, 25, 25, 25 provided on the lower ends of the pair of frame frames 11, 11. In addition to the above, the frame 10 also comprises a plurality of beam members 15 (six in this embodiment) that are stretched between the pair of frame frames 11, 11 along the vehicle width direction. 【0051】 The frame frames 11, 11 are each spaced apart in the vehicle width direction. The frame frame 11 is formed from a material such as aluminum or iron. In this embodiment, the frame frame 11 is formed from a pair of divided frame frames 12, 12 which are divided into two parts in the central part in the longitudinal direction (front-to-back direction). 【0052】 The divided frame frames 12, 12 are configured to be detachable so that they are adjacent to each other in the front-to-back direction. Specifically, the divided frame frames 12, 12 are arranged side by side so that they are longitudinal in the front-to-back direction and are connected at the center in the front-to-back direction. In addition, reinforcing members 13 are attached to the lower part of the center in the front-to-back direction of the divided frame frames 12, 12. The divided frame frames 12, 12 may be configured to be detachable by means of bolts, for example. In addition, at least one bogie-side wheel 25 is assigned to either of the divided frame frames 12, 12. 【0053】 The beam members 15 are formed from materials such as aluminum or iron. Two beam members 15 are arranged at the front, center, and rear ends of a pair of frame frames 11, 11 that are spaced apart in the width direction. This allows the frame body 10 to be formed into a rectangular shape when viewed from above. The beam members 15 are also intended to increase the widthwise strength of the frame body 10. In this embodiment, the beam members 15 are configured to be detachably attached to the frame frames 11, 11. The beam members 15 can be detachably fastened to the frame frames 11, 11, for example, with bolts. 【0054】 The mounting section 20 is formed on the upper side of the frame 10. In this embodiment, the bottom surface of the cargo box 2 is supported by the upper sides of the pair of left and right frame frames 11, 11. Specifically, the bottom surface of the cargo box 2 is supported near both ends in the width direction along the front-rear direction. The mounting section 20 can be formed in various shapes and sizes depending on the shape and size of the cargo box 2 to be loaded. 【0055】 Multiple (four in this embodiment) bogie-side wheels 25 are arranged on the underside of the frame 10 (frame frame 11). In this embodiment, the bogie-side wheels 25 are positioned at the four corners of the underside of the frame 10. The bogie-side wheels 25 are designed to support the frame 10 so that it can move. In this embodiment, at least one pair of bogie-side wheels 25, 25, positioned on both sides in the width direction, are formed as casters. Therefore, the frame 10 can be moved in various directions. In addition, each bogie-side wheel 25 is provided with a stopper, and the rotation of the bogie-side wheel 25 is suppressed by engaging the stopper. Note that a stopper can be provided on at least one of the bogie-side wheels 25. 【0056】 As shown in Figure 1, a pair of first stopper portions 30, 30 are provided on both sides of the frame 10 in the vehicle width direction. The first stopper portions 30, 30 are intended to restrict the movement of the cargo box 2 in the width direction. The first stopper portions 30, 30 are formed from elongated plate-like members (for example, metal or fiber-reinforced resin) that extend along the front-rear direction. The first stopper portions 30, 30 have a plurality of movable holes 31 formed at intervals along the front-rear direction. In this embodiment, the first stopper portions 30, 30 are divided in the central portion in the front-rear direction. That is, in this embodiment, the first stopper portions 30, 30 can be moved independently in the front-rear direction with the central portion as the boundary. 【0057】 The movable hole 31 is formed from a front-to-rear elongated hole extending along the front-to-rear direction and a top-to-bottom elongated hole extending along the top-to-bottom direction, with the top-to-bottom elongated holes connected at the front ends of the front-to-rear elongated holes. The first stopper parts 30, 30 are fixed to the frame frame 11 (divided frame frame 12) via bolts inserted through the movable hole 31. The first stopper parts 30, 30 are designed to be movable along the front-to-rear elongated holes and the top-to-bottom elongated holes by releasing the fastening with bolts. In this embodiment, the movement of the cargo box 2 in the vehicle width direction is restricted by raising and fixing the first stopper parts 30, 30. That is, the first stopper part 30 is designed to be able to move up and down between a restricted state in which it protrudes above the frame body 10 to restrict the movement of the cargo box 2 in the width direction, and an unrestricted state in which it does not protrude above the frame body 10. 【0058】 Furthermore, the first stopper portions 30, 30 can be moved back and forth from a non-protruding state, as shown in Figure 6(a), where they do not protrude forward from the frame 10, to a protruding state, as shown in Figure 6(b), where they protrude forward from the frame 10. As shown in Figures 6(b) and 7, by setting the first stopper portions 30, 30 to the protruding state where they protrude forward, the protruding portion 32 can be engaged with the cargo bed 6. Specifically, the first stopper portions 30, 30 can be engaged with the guide members 70, 70, which will be described later, arranged on both sides of the cargo bed 6 in the vehicle width direction. 【0059】 As shown in Figures 1 and 2, a pair of flaps 40, 40 are provided on the upper front ends of both sides of the frame 10 in the vehicle width direction. The flaps 40, 40 are formed from substantially rectangular plate-like members (for example, metal or fiber-reinforced resin). The base ends of the flaps 40, 40 are supported by hinge members so as to be rotatable in the front-rear direction. The flaps 40, 40 are supported so as to be rotatable around an axis along the vehicle width direction, and can rotate between a reversed state facing the mounting section 20 and an extended state protruding to the outside of the mounting section 20. Furthermore, as shown in Figure 8, the flaps 40, 40 can engage with the rear end portion of the cargo bed 6. 【0060】 As shown in Figure 1, the second stopper portion 50 is provided on both the front and rear ends of the frame 10. In this embodiment, the second stopper portions 50, 50, 50, 50 are provided at the four corners of the frame 10. The second stopper portion 50 can move vertically between a restricted state in which it protrudes above the frame 10 to restrict the movement of the cargo box 2 in the front-rear direction, and an unrestricted state in which it does not protrude above the frame 10. 【0061】 As described above, the cargo box transfer trolley 1 can restrict the movement of the cargo box 2 in the front-to-back direction by having the second stopper portion 50 protrude above the frame 10. This prevents the cargo box transfer trolley 1 from unexpectedly moving the cargo box 2 in the front-to-back direction, thus preventing the cargo box 2 from falling off the cargo box transfer trolley 1. Furthermore, by having the second stopper portion 50 of the cargo box transfer trolley 1 in an unrestricted state where it does not protrude above the frame 10, the cargo box 2 can be moved smoothly when transferring it to a cargo bed 6 or the like. 【0062】 The above describes the configuration of the cargo box transfer trolley 1. Next, the operation and effects of the cargo box transfer trolley 1 will be explained below. 【0063】 The aforementioned cargo box transfer trolley 1 can be configured to restrict the movement of the cargo box 2 in the width direction by having the first stopper portions 30, 30 protrude above the frame 10. This prevents the cargo box 2 from shifting in the width direction and falling off during transfer. Furthermore, the cargo box transfer trolley 1 can transfer the cargo box 2 to the loading platform 6 while restricting its movement in the width direction with the first stopper portions 30, 30, thus preventing contact between the vehicle 5 and the cargo box 2. Additionally, the cargo box transfer trolley 1 can be configured to have the pair of first stopper portions 30, 30 moved vertically so that they do not protrude above the frame 10, thus allowing the loading portion 20 of the cargo box transfer trolley 1 to be used flat when used as a stage or display stand. Therefore, the aforementioned cargo box transfer trolley 1 allows for the opening and closing of the cargo box 2 door without hindrance, and facilitates the attachment and detachment of tools and other items to the sides 3, 3 of the cargo box 2. Furthermore, even while the cargo box 2 is being used for sales, the aforementioned cargo box transfer trolley 1 allows the first stopper sections 30, 30 to be adjusted to any desired height, thus functioning as a stopper while preventing any disruption to sales. 【0064】 Furthermore, the aforementioned cargo box transfer trolley 1 can move the first stopper portions 30, 30 back and forth between a protruding state where they protrude forward of the frame 10 and a non-protruding state where they do not protrude forward of the frame 10. This allows the cargo box transfer trolley 1 to extend the first stopper portions 30, 30 toward the loading platform 6 and overlap it when transferring the cargo box 2. As a result, even if there is a gap between the loading platform 6 and the cargo box transfer trolley 1, the first stopper portions 30, 30 can guide the cargo box 2 toward the loading platform 6 without it shifting laterally. In addition, when transferring the cargo box 2, the cargo box transfer trolley 1 can extend the flaps 40, 40 toward the outside of the mounting portion 20, thereby overlapping the flaps 40, 40 with the loading platform 6. As a result, the cargo box transfer trolley 1 does not require the preparation or height adjustment of trolleys of different heights for each loading platform height. Furthermore, the aforementioned cargo box transfer trolley 1 can absorb gaps and height differences between the cargo bed 6 and the cargo box transfer trolley 1, enabling stable transfer of the cargo box 2. As a result, the aforementioned cargo box transfer trolley 1 can stably transfer the cargo box 2 while suppressing vibrations of the cargo box 2. In this way, the aforementioned cargo box transfer trolley 1 can easily transfer the cargo box 2. 【0065】 The above describes the configuration and operation of the cargo box transfer trolley 1. Next, the assembly and disassembly of the cargo box transfer trolley 1 (frame 10) will be explained with reference to the flowcharts in Figures 13 and 14. 【0066】 As shown in Figure 13, when the assembly of the frame 10 begins, the four divided frame frames 12, 12, 12, 12 are positioned on all four sides in an upright position (step S1). 【0067】 Next, the front divided frame frames 12, 12 on both the left and right sides (both sides in the vehicle width direction) are joined by two upper and lower beam members 15, 15 (step S2). Also, the rear divided frame frames 12, 12 on both the left and right sides are joined by two upper and lower beam members 15, 15 (step S3). At this time, if necessary, the intermediate parts of the left and right divided frame frames 12, 12 may be joined by the beam members 15. 【0068】 Next, the central parts of the front and rear divided frame frames 12, 12 on both the left and right sides are joined together (step S4). This forms a pair of left and right frame frames 11, 11. Subsequently, reinforcing members 13 are attached to the lower central parts of the front and rear divided frame frames 12, 12 on both the left and right sides (step S5). This completes the assembly of the frame body 10, and the cargo box transfer trolley 1 is formed. Thus, the cargo box transfer trolley 1 of the present invention is formed by joining the divided frame frames 12 with beam members 15, so strength can be ensured. In addition, since each divided frame frame 12 is formed in a rectangular shape, strength can be ensured. 【0069】 The above describes the assembly process of the cargo box transfer trolley 1 (frame 10) of the present invention. Next, the disassembly process of the cargo box transfer trolley 1 (frame 10) will be explained with reference to the flowchart in Figure 14. 【0070】 As the disassembly process begins, the reinforcing member 13 is first removed from the lower center of the front and rear divided frame frames 12, 12 (step S10). Subsequently, the connection between the front and rear divided frame frames 12, 12 is released, and the front and rear divided frame frames 12, 12 are separated (step S11). 【0071】 Next, the two beam members 15, 15 of the front split frame frames 12, 12 on both the left and right sides (both sides in the vehicle width direction) are removed (step S12). Also, the two beam members 15, 15 of the rear split frame frames 12, 12 on both the left and right sides are removed (step S13). This completes the disassembly of the cargo box transfer trolley 1. 【0072】 As described above, the cargo box transfer trolley 1 can be disassembled into a pair of frame frames 11, 11 and at least one beam member 15. This reduces the storage space required for the cargo box transfer trolley 1. Furthermore, the cargo box transfer trolley 1 can be stored in the cargo box 2 in its disassembled state, for example, and then reassembled and used at the destination. Therefore, there is no need to prepare a cargo box transfer trolley 1 for each destination, which reduces the cost of preparing multiple cargo box transfer trolleys 1 and eliminates the need to secure storage space at the destination. 【0073】 Furthermore, in this embodiment, the frame frame 11 is formed of two divided frame frames 12, 12. The divided frame frames 12, 12 are also configured to be detachably attached to each other in the front-to-back direction. Therefore, the above-described cargo box transfer trolley 1 can further reduce the size of the frame frame 11, thus further reducing the storage space required. Here, it is preferable that each of the multiple divided frame frames 12 is formed to be the same shape. As a result, the above-described cargo box transfer trolley 1 can store each of the divided frame frames 12 stacked on top of each other, thus efficiently utilizing the storage space. 【0074】 The above describes the operation and effects of the cargo box transfer trolley 1 of the present invention. Next, we will describe in detail the cargo box transfer system 100 for transferring the cargo box 2 between the cargo box transfer trolley 1 and the vehicle 5. 【0075】 ≪Cargo box transfer system≫ As shown in Figure 1, the positioning portion 60 is located at the center in the vehicle width direction on the front end side of the frame 10. The positioning portion 60 is formed on a support portion 61 which is formed in the shape of a rectangular parallelepiped. As shown in Figures 10(a) and 10(b), the positioning portion 60 has a reference portion 62 which serves as a reference for positioning, and a hook portion 63 attached to the front end side of the frame 10, etc. 【0076】 The reference portion 62 is located in the center of the beam member 15 at the front end of the frame 10 (see Figure 1). As shown in Figure 10(b), the reference portion 62 is formed as a positioning mark on the support portion 61. 【0077】 As shown in Figures 8 and 10(a), the hook portion 63 is formed by bending a rectangular plate-shaped member in the middle. The hook portion 63 has a rectangular opening 64 in its center. The opening 64 is provided to position the hook portion 63 and the hinge member 6C when the hook portion 63 is engaged with the gap Gb. As will be described in detail later, the opening 64 is used to determine the correct alignment when the center of the cargo bed 6 and the reference portion 62 of the cargo box transfer trolley 1 are aligned. The hook portion 63 can engage with the gap Gb between the cargo bed 6 and the rear tailgate member 6B at both ends of the hinge member 6C [see Figure 10(a)]. The hook portion 63 is designed to engage with the gap Gb when the rear tailgate member 6B is rotated backward toward the outside of the cargo bed 6, and the reference portion 62 is aligned with the center of the hinge member 6C. This allows the hook portion 63 to connect the vehicle 5 and the cargo box transfer trolley 1 while they are positioned. 【0078】 To explain the positioning using the hook portion 63 in detail, first, a preliminary position is performed by aligning the center of the cargo bed 6 with the reference portion 62. After the preliminary positioning, the hook portion 63 is inserted into the hinge member 6C in the center of the rear tailgate member 6B. At this time, if the hinge member 6C does not fit into the opening 64 of the hook portion 63, it is determined that the cargo bed 6 and the cargo box transfer trolley 1 are not facing each other directly. If the hinge member 6C fits between the openings 64, it is determined that the cargo bed 6 and the cargo box transfer trolley 1 are facing each other directly. Furthermore, by engaging and fixing the hook portion 63 in the gap Gb, it is possible to suppress the disruption of the alignment between the cargo bed 6 and the cargo box transfer trolley 1 when the cargo box transfer trolley 1 moves. In addition, the hook portion 63 has an elongated hole 63A formed in it for attachment to the support portion 61. Therefore, the hook portion 63 can be pulled against and fixed to the rear tailgate member 6B. In other words, the elongated hole 63A is also intended to serve as an adjustment function for each vehicle model. 【0079】 As shown in Figure 11(a), the guide member 70 is formed from a long support member and includes a guide surface 71 formed along its longitudinal direction, a third stopper portion 72, and an engaging portion 73. The guide surface 71, the third stopper portion 72, and the engaging portion 73 are formed perpendicular to each other so as to face three different directions. The guide member 70 is made from a material such as metal or fiber-reinforced resin. As shown in Figure 11(b), the guide member 70 engages with the gap Ga between the cargo bed 6 and the side panel member 6A, restricting its movement in the vehicle width direction. As a result, the guide member 70 is positioned on both sides of the cargo bed 6 in the vehicle width direction, extending along the front-rear direction of the cargo bed 6. 【0080】 The engaging portion 73 is formed along the longitudinal direction of the guide member 70 and protrudes toward the lower surface of the guide member 70. The engaging portion 73 also has multiple notches 73A [see Figure 10(a)] spaced apart in the vehicle's longitudinal direction. These notches 73A are designed to avoid the hinge member 6C of the side panel member 6A. The engaging portion 73 can be engaged with the cargo bed 6 by inserting it into the gap Ga between the cargo bed 6 and the side panel member 6A. This restricts the guide member 70 from moving in the vehicle width direction relative to the cargo bed 6. Furthermore, because the engaging portion 73 has notches 73A, it can suppress the longitudinal movement (shift) of the cargo bed 6, and also functions as a mounting position for the guide member 70. 【0081】 The guide surface 71 is formed along the longitudinal direction of the guide member 70 and is also formed to be horizontal to the mounting surface of the cargo bed 6 when the guide member 70 is engaged with the gap Ga. The guide surface 71 is intended to guide the cargo box side wheels 240 onto the cargo bed 6. 【0082】 The third stopper portion 72 is formed along the longitudinal direction of the guide member 70 and is designed to protrude upward when the guide member 70 is engaged with the gap Ga. The third stopper portion 72 is intended to restrict the movement of the cargo box 2 loaded on the cargo bed 6 in the vehicle width direction. 【0083】 The above describes the configuration of the cargo box transfer system 100 according to one embodiment of the present invention. Next, the transfer operation (loading and unloading operation) of cargo boxes 2 using the cargo box transfer trolley 1 and the cargo box transfer system 100 will be explained with reference to the flowcharts in Figures 15 and 16. 【0084】 As shown in Figure 15, when the loading and unloading operation of the cargo box 2 begins, the lift devices 200 (cargo box side wheels 240) are first attached to the four corners of the cargo box 2 (step S20). Subsequently, guide members 70, 70 are installed (engaged) in the gaps Ga, Ga on both the left and right sides (both sides in the vehicle width direction) of the cargo bed 6 of the vehicle 5 (step S21). 【0085】 Next, the guide members 70, 70 are fixed in place by closing the lateral tailgate members 6A, 6A on both sides (step S22). In other words, the guide members 70, 70 are fixed in place by tilting the lateral tailgate members 6A, 6A inward so that they are upright. 【0086】 Next, the relative movement of the cargo box transfer trolley 1 and the vehicle 5 positions the reference part 62 of the cargo box transfer trolley 1 relative to the central hinge member 6C (step S23). That is, the cargo bed 6 of the vehicle 5 and the cargo box transfer trolley 1 are positioned to face each other directly. 【0087】 Next, the flaps 40, 40 of the cargo box transfer trolley 1 are lowered onto the cargo bed 6 (step S24). That is, the flaps 40, 40 of the cargo box transfer trolley 1 are stretched over the rear end of the cargo bed 6 [see Figure 6(a)]. At this time, as shown in Figures 9(a) and 9(c), even if there is a gap or height difference between the cargo box transfer trolley 1 and the cargo bed 6, the flaps 40, 40 can absorb the gap or height difference. 【0088】 Once step S24 is complete, the hook portion 63 engages with the gap Gb between the cargo bed 6 and the rear tailgate member 6B, and the hook portion 63 and the support portion 61 are connected with a wing nut, bolt, or the like (step S25). 【0089】 Next, as shown in Figure 16, the pair of left and right first stopper parts 30, 30 are pulled upward (step S26). Subsequently, the first stopper parts 30, 30 are slid to the loading platform 6 and are in a protruding state that extends forward (step S27). As a result, the first stopper parts 30, 30 engage with the loading platform 6, and the loading platform 6 and the cargo box transfer trolley 1 are connected. 【0090】 The worker raises the second stopper portions 50 on the rear side (there are two in this embodiment) of the cargo box transfer trolley 1 until they are in a restricted state (step S28). This restricts the rearward movement of the cargo box 2. 【0091】 Once step S28 is completed, the cargo box 2 is lifted up by the lift device 200 (step S29). This causes the cargo box side wheels 240 of the lift device 200 to make contact with the cargo bed 6 (guide surface 71). Subsequently, the cargo box 2 is pushed by an operator or the like, and transferred from the vehicle 5 to the cargo box transfer trolley 1 (step S30). 【0092】 Next, the worker raises the second stopper sections 50 on the front side (two in this embodiment) of the cargo box transfer trolley 1 until they are in a restricted state (step S31). This restricts the movement of the cargo box 2 in the front-rear direction. Next, the worker operates the lift device 200 to lower the cargo box 2 (step S32). 【0093】 Once the work in step S32 is completed, the hook portion 63 is released, and the vehicle 5 and the cargo box transfer trolley 1 are separated (step S33). This completes the series of operations related to the transfer of the cargo box 2. 【0094】 The above describes the transfer operation of the cargo box 2 using the cargo box transfer system 100 according to one embodiment of the present invention. Next, the details of the operation and effects of the cargo box transfer system 100 will be explained. 【0095】 As described above, the cargo box transfer system 100 has a positioning section 60 on the frame 10, so the cargo box transfer trolley 1 can be easily and accurately positioned relative to the cargo bed 6 of the vehicle 5. Furthermore, the cargo box transfer system 100 can engage the hook section 63 with the gap Gb between the cargo bed 6 and the rear tailgate member 6B while the frame 10 is visually and temporarily positioned relative to the cargo bed 6, so the cargo bed 6 and the frame 10 can be accurately fixed in the positioned state. In addition, the opening 64 of the hook section 63 restricts the movement of the hook section 63 in the vehicle width direction, which is restricted by the hinge member 6C of the rear tailgate member 6B. Therefore, the cargo box transfer system 100 can suppress the cargo box transfer trolley 1 from shifting away from the cargo bed 6 even if vibrations occur when transferring the cargo box 2. Furthermore, since positioning can be performed using the central hinge member 6C of the rear tailgate member 6B (see Figure 10(a)), there is no need to apply separate positioning markings to the vehicle 5. Therefore, improved versatility can be expected. 【0096】 Furthermore, the above-described cargo box transfer system 100 can easily form a third stopper portion 72 on the side of the cargo bed 6 by engaging the engaging portion 73 of the guide member 70 with the gap Ga between the cargo bed 6 and the side panel member 6A. The third stopper portion 72 can also restrict the movement of the cargo box 2 in the vehicle width direction, thereby preventing the cargo box 2 from shifting off the cargo bed 6 and falling, or from coming into contact with the side panel member 6A, etc. In addition, since the guide member 70 has a guide surface 71, it can cover any irregularities on the surface of the cargo bed 6. As a result, the above-described cargo box transfer system 100 can stably load the cargo box 2 onto the cargo bed 6. Furthermore, since the guide member 70 can be easily attached to and detached from various types of vehicles 5, improved versatility can be expected. 【0097】 The above describes the operation and effects of the cargo box transfer system 100. Next, we will explain various ways to use the cargo box transfer trolley 1 and the cargo box transfer system 100, such as a handcart 1A or a display stand. 【0098】 Figure 17(a) illustrates an example of using the cargo box transfer trolley 1 as a transport trolley or display stand for various goods. In this example, the top plate 21 is placed on the mounting section 20 (see Figure 1) of the cargo box transfer trolley 1. 【0099】 As described above, the cargo box transfer cart 1 has a top plate 21 on at least a portion of the frame 10, so as shown in Figure 18(a), for example, after the cargo box 2 has been unloaded, the cargo box transfer cart 1 can be used as a display stand for goods, etc. For this reason, the cargo box transfer cart 1 is expected to be used in places like flea markets. Furthermore, as shown in Figure 18(b), the cargo box transfer cart 1 can be used mainly as a display stand by utilizing the top plate 21. Also, when the divided frame 12 is used as a display stand as shown in the figure, the divided frame 12 is supported by two wheels, so it can be used as an inclined display stand. This makes the displayed items on the display stand easier for customers to see. In addition to being a display stand, the cargo box transfer cart 1 can also be used as a stage, etc. Furthermore, the cargo box 2 may be used inside as a stage or display stand. Furthermore, the aforementioned cargo box transfer trolley 1 is configured so that the frame 11 can be divided into two parts, allowing it to be used as two display stands, thus making it even more likely to be used in flea markets and the like. 【0100】 Figure 17(b) illustrates a handcart 1A that utilizes a frame 10 related to a cargo box transfer trolley 1. In this embodiment, the handcart 1A is formed by dividing a pair of frame frames 11, 11 on both sides in the width direction of the frame 10 into two parts in the center in the front-rear direction. In other words, two handcarts 1A, 1A are formed by dividing the left and right frame frames 11, 11 into front and rear divided frame frames 12, 12, respectively. The handcart 1A is also provided with a top plate 21 in a part of the frame 10. Therefore, various items can be placed on the top plate 21 of the handcart 1A. Furthermore, since the handcart 1A is provided with a pair of trolley-side wheels 25, 25 on both sides in the width direction of the frame 10 and behind the beam member 15, it can be moved freely by lifting the beam member 15 and towing it. In this embodiment, the frame frame 11 is divided into two divided frame frames 12, 12, but the frame frame 11 may not be divided. Furthermore, the frame 11 may be divided into two or more parts. 【0101】 As described above, by adopting the above-described configuration, the cargo box transfer cart 1 can be used as a handcart 1A. Therefore, the handcart 1A can be used to transport goods at destinations such as outdoors without having to prepare a separate cart. Furthermore, as described above, by configuring the frame frame 11 of the cargo box transfer cart 1 to be divided into two frame frames 12, 12, the handcart 1A can be used as two handcarts 1A, 1A, which is expected to further improve work efficiency. 【0102】 The above describes the configuration and effects of the cargo box transfer trolley 1, cargo box transfer system 100, and handcart 1A of the present invention. However, the cargo box transfer trolley 1, cargo box transfer system 100, and handcart 1A of the present invention are not limited to the embodiments described above, and various modifications can be made. 【0103】 In this embodiment, the frame 10 is formed to be rectangular in shape when viewed from above, but the frame 10 can be formed in various shapes and sizes. Also, in this embodiment, the frame 10 is formed to be disassembled as a divided frame 12 and beam members 15, but the frame 10 may be formed not only to be disassembled, but also to be non-disassemblable or to be partially disassembled. Also, the mounting section 20 can be formed in various shapes and sizes to match the shape and size of the cargo box 2. For example, the mounting section 20 may be formed to support the cargo box 2 with its entire surface. Also, the trolley-side wheels 25 can be placed in various positions, and the number of wheels provided can be appropriately changed within a range that allows the cargo box transfer trolley 1 to be moved. Also, the first stopper section 30 can be formed in various shapes and sizes. For example, the first stopper section 30 may be formed to be divisible into multiple parts. Also, in this embodiment, the first stopper section 30 is configured to be movable in the vertical direction, but the first stopper section 30 may be fixed in a raised limiting position. Furthermore, the first stopper portion may not only be movable in the front-rear direction, but may also be fixed at a predetermined position in the front-rear direction. In addition, the flap 40 can be formed in various shapes and sizes. In this embodiment, the flap 40 is supported so as to be rotatable around an axis along the vehicle width direction, but various forms of flap 40 capable of guiding the cargo box side wheels 240 of the cargo box 2 can be used. 【0104】 In this embodiment, the pair of frame frames 11, 11 in the frame body 10 are each formed to be divisible into two divided frame frames 12, 12, but the present invention is not limited thereto. For example, the frame frame 11 may be formed to be indivisible, or to be divisible into two or more divided frame frames 12, and can be configured to be divisible into various shapes and sizes depending on the manner of use. In addition, beam members 15 can be used in various numbers, shapes and sizes. Furthermore, while it is desirable for the divided frame frames 12 to be formed in the same shape for storage purposes, the invention is not limited thereto and can be formed in various shapes and sizes. In addition, the divided frame frames 12, beam members 15, and trolley-side wheels 25 can be configured to be detachable in various units. 【0105】 Furthermore, in this embodiment, the cargo box 2 is lifted up using a lifting device 200, but the present invention is not limited to this. For example, the cargo box 2 may be equipped with wheels, or the cargo box 2 may be lifted up in a transportable manner by means other than the lifting device 200, and various means can be used to lift up and move the cargo box 2. In addition, in this embodiment, the rotating levers 220 of the multiple lifting devices 200 are driven individually, but the rotating levers 220 of the multiple lifting devices 200 may be operated together via a linkage mechanism or the like. 【0106】 Furthermore, in this embodiment, second stopper portions 50 are provided on both the front and rear ends of the frame 10 in the vehicle width direction, but the present invention is not limited thereto. The second stopper portions 50 may be provided as needed, and a configuration without the second stopper portions 50 is also possible. In addition, the second stopper portions 50 can be of various shapes and sizes that can suppress the movement of the cargo box 2 in the front-rear direction, and can be placed in various positions. 【0107】 Furthermore, the top plate 21 can be provided as needed, and various shapes and sizes can be used. Also, the handcart 1A can be formed in an appropriate shape and size according to the shape and size of the frame 10, frame frame 11, divided frame frame 12, etc. 【0108】 Furthermore, the vehicle 5 used in the cargo box transfer system 100 can be not only a light truck, but also various vehicles equipped with a cargo bed 6. For example, the cargo box transfer system 100 of the present invention can be used with large, medium, and small trucks. In this embodiment, positioning is performed using the central hinge member 6C of the rear tailgate member 6B, but positioning can be performed using various means. Also, the hook portion 63 can be formed in various shapes and sizes. In addition, various markers that can be used for positioning can be used in the reference portion 62. 【0109】 In this embodiment, a pair of guide members 70, 70 are provided on both sides of the cargo bed 6 in the vehicle width direction, extending along the front-rear direction of the cargo bed 6. However, the guide members 70, 70 may be provided only as needed, and a configuration without guide members 70 is also possible. Furthermore, guide members 70 can be of various shapes and sizes capable of guiding the cargo box side wheels 240. 【0110】 The above describes various embodiments and modifications of the cargo box transfer trolley 1, cargo box transfer system 100, and handcart 1A according to the present invention. However, the present invention is not limited to those exemplified in the embodiments and modifications described above, and it will be readily apparent to those skilled in the art that other embodiments may exist in the spirit and teachings thereof, without departing from the scope of the claims. [Industrial applicability] 【0111】 The cargo box transfer trolley and cargo box transfer system of the present invention can be used to move various types of cargo boxes. Furthermore, the cargo box transfer trolley and cargo box transfer system of the present invention can be used for loading and unloading cargo boxes onto vehicles such as trucks, ships, aircraft, trolleys, etc. Additionally, the handcart of the present invention can be used to transport various types of goods. [Explanation of symbols] 【0112】 1: Cargo box transfer trolley 1A: Handcart 2: Packing box 5: Vehicles 6: Cargo bed 6A: Side panel member 6B: Rear tailgate member 10: Frame 11: Frame 12: Divided frame frame 15: Beam member 20: Mounting section 25: Bogie side wheels 30: First Stopper Section 40: Flap 50: Second Stopper Section 60: Positioning section 62: Reference part 63: Hook part 70: Guide member 100: Cargo box transfer system 200: Lifting device 220: Rotating lever 240: Cargo box side wheels

Claims

[Claim 1] A frame formed to support at least a portion of the bottom surface of the cargo box, A mounting section formed on the upper surface of the frame, on which the cargo box can be placed, Multiple bogie-side wheels that support the frame in a movable manner, A pair of first stopper portions are provided on both sides of the frame in the vehicle width direction, which restrict the movement of the cargo box in the width direction, A pair of flaps are provided on both sides in the vehicle width direction of the frame, and are provided on the front end side of the mounting portion described above, Equipped with, The first stopper portion is, The forward and backward movement between a protruding state in which the frame protrudes forward and a non-protruding state in which the frame does not protrude forward, Vertical movement between a restricted state in which the cargo box protrudes above the frame and restricts its movement in the vehicle width direction, and an unrestricted state in which it does not protrude above the frame, It is possible, The aforementioned flap is A cargo box transfer trolley characterized by being supported so as to be rotatable around an axis along the width direction of the vehicle, and being able to rotate between a reversed state facing the aforementioned mounting part and an extended state protruding outward from the aforementioned mounting part. [Claim 2] The aforementioned frame body is A pair of rectangularly shaped frame frames, At least two of the bogie-side wheels provided on the lower end side of a pair of frame frames, A pair of the frame frames are arranged with a gap between them in the vehicle width direction, and at least one beam member is provided that spans between the pair of frame frames along the vehicle width direction, Equipped with, The cargo box transfer trolley according to claim 1, characterized in that the frame and beam members are each configured to be detachable. [Claim 3] A cargo box transfer system for transferring a cargo box between a cargo box transfer trolley and a vehicle having a cargo bed, as described in claim 1 or 2, The aforementioned vehicle is A pair of side panel members provided on both sides in the vehicle width direction, A rear tailgate member provided on the rear end side of the aforementioned side tailgate member, It has, The frame has a positioning portion at the center in the vehicle width direction on the front end side. The positioning part is, A reference part that serves as the positioning reference, A hook portion provided on the front end side of the frame, It has, A hinge member is provided in the center of the aforementioned rear tailgate member. The hook portion is capable of engaging with the gap between the cargo bed and the rear tailgate member at both ends of the hinge member. A cargo box transfer system characterized in that, with the rear tailgate member rotated backward toward the outside of the cargo bed, the reference portion is aligned with the center of the hinge member, the hook portion is engaged with the gap, and the vehicle and the cargo box transfer trolley are connected.

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