Multi-purpose transport tray

Abstract

Provided is a transport tray that can be used for multiple purposes, such as transporting luggage on a handcart on snow, ice, puddles, or mud, moving a shopping cart or wheelchair, transporting materials on normal ground, and transporting people, materials, earth and sand, and debris during disasters and disaster recovery. 【Solution means】In order to enable easy sliding transportation on snow, ice, and mud as well as on normal ground, it has a substantially rectangular parallelepiped shape with a bottom plate (1), a front wall plate (2), a rear wall plate (3), and side wall plates (4). It is equipped with a locking device that can be fixed to or released from the ground surface in a rectangular groove (7) at the center of the lower surface of the bottom plate. Both sides of the rectangular groove (7) are used as corrugated reinforcement parts (10) to serve as rails for wheels that can also be adapted to carts and wheelchairs with different wheelbases. These are formed of metal or synthetic resin, and it is a multi-purpose transport tray characterized by this.

Description

Technical Field

[0001] The present invention relates to a transport tray that can be used for various purposes such as transporting luggage on a handcart on snow, ice, puddles, mud, shopping carts, moving wheelchairs, transporting materials on normal ground, transporting people, materials, earth and sand, and debris during disasters and disaster recovery.

Background Art

[0002] Hand carts are widely used in various industries and households, starting from business logistics. However, on snow, ice, mud, or debris during disasters, the wheels not only do not rotate but are also buried and cannot be used. Therefore, it takes a lot of time and effort to carry and deliver by hand, which particularly affects the heavy workload of truck drivers and logistics. Also, even when there is a shallow layer of snow, if the wheels of the cart enter the room with snow or mud attached, it will contaminate the floor, require cleaning, or cause slipping and falling, which is also dangerous. The same applies to the movement of wheelchairs and shopping carts for the disabled. In Japanese Patent No. 7104290, since the rear end of the bottom plate is open, it is easy to get on and off the cart, shopping cart, or wheelchair. However, it can only move forward and cannot move backward. When getting off at the destination, it has to move backward. This causes inconvenience such as moving forward and backward. When getting off on snow at the entrance of a building, snow, ice, water, and mud will adhere to the wheels, and snow, ice, water, and mud will be brought into the building. In addition, since there is no fixing device for the ground contact surface, on slippery snow, ice, or inclined surfaces, when loading and unloading luggage or in an empty state without loading, it may move unexpectedly due to nature or wind force, causing obstacles to work, or may slide and collide with people, vehicles, or buildings, etc. The present invention provides similar wall plates before and after the tray, enabling one-way use such as moving forward, boarding the tray, getting off the tray, moving forward, and entering the room, or moving backward, boarding, getting off, etc., as well as various usage methods such as moving forward, boarding, moving backward, and getting off. From this, it can be used not only for the running of carts, shopping carts, and wheelchairs on snow, ice, water, and muddy ground, but also for directly loading luggage on the tray and transporting it on snow, ice, water, and muddy ground, for normal transportation on the ground, for carrying the tray with luggage, for transporting the elderly, young, men, women, the injured, etc. who cannot move quickly during disasters and disaster recovery, for transporting sandbags, earth and sand, and for removing debris and wreckage. It can also be used for multi-purpose throughout the year, such as sliding on the ground, puddles, snow, ice, and muddy ground, or carrying it by one to several people. Furthermore, by equipping a locking device with the ground contact surface, it has convenience and safety, which is different from the prior art.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Conventionally, when transporting luggage on snow, ice, or muddy ground using a wheeled carrier such as a cart or a shopping cart, or a wheelchair, etc., the wheels do not rotate or get buried due to the resistance of snow, ice, or mud. Therefore, methods such as not using the cart, forcibly dragging the cart, or attaching skids to the lower part of the cart or the wheels of the cart have been adopted. However, these are complex, heavy, and expensive devices, and they were only used during the snow accumulation period. Furthermore, even with a skid-equipped cart, since the skids remain attached when entering the room, snow adheres to the wheels, skids, and the gaps of the skid device, causing it to fall indoors, melt into water droplets due to the room temperature, and wet the floor, requiring cleaning, or there is also a risk of slipping and falling. In addition, when placed on flat ground or inclined ground that is slippery in a snow-packed state, for getting on and off a trolley, shopping cart, or wheelchair, loading and unloading luggage, or due to wind force, it may unexpectedly move and fail to achieve the purpose normally. Or, while the operator is away from the scene, it may unexpectedly slide and move on flat ground or an inclined plane, not only reducing work efficiency but also posing a risk of collision with other vehicles, people, buildings, etc. Therefore, it is an object of the present invention to provide a multi-purpose transport tray that is efficient for getting on and off and traveling, can be easily attached on snow, ice, water, muddy ground, or normal ground, does not attach snow or mud to the wheels of a trolley, shopping cart, or wheelchair, can carry luggage alone and travel on snow, ice, water, muddy ground, or normal ground, or can be carried as a transport tool for transportation, can be used not only for the movement and transportation of trolleys, shopping carts, and wheelchairs during the winter season but also for various types of transportation and conveyance throughout the year, and can be fixed to the ground surface as needed to prevent unexpected movement, improve work efficiency, and have safety features.

Means for Solving the Problems

[0005] To solve the above problems, the present invention has the following configuration. A substantially rectangular parallelepiped-shaped box without a top surface is provided with a front wall plate (2) and a rear wall plate (3) that curve and rise at the front and rear ends of the bottom plate (1), and side wall plates (4) that rise with gentle curved surfaces on both sides. A semi-cylindrical gripping portion (5) that extends outward is provided at the upper peripheral edge of the front wall plate (2), the rear wall plate (3), and the side wall plates (4). There are mounting holes (6) for fixing and towing luggage at key points in the front, rear, left, and right directions. A rectangular groove (7) that protrudes upward from the front wall plate (2) to the rear wall plate (3) at the central portion of the lower surface of the bottom plate (1) and has an open lower surface and mouth is equipped. The bottom plate (1) on both sides of the rectangular groove (7) serves as a corrugated reinforcing portion (10). Both the rectangular groove (7) and the corrugated reinforcing portion (10) prevent lateral sliding and enhance straightness while reinforcing the bottom plate (1). Furthermore, several metal locking pins (8) that pierce and fix to the grounding surface to prevent accidental movement are provided on the upper surface within the rectangular groove (7), a metal locking pin shaft (9) that engages and drives the locking pins (8), and locking levers (11) that curve upward from the mouths at both ends of the rectangular groove (7) to the outer wall surfaces of the front wall plate (2) and the rear wall plate (3) for operating the locking pin shaft (9), a locking lever fixture (12), a locking pin shaft support (13), and a locking pin shaft support mounting screw (14). They serve as the operating and accommodating portions for the locking pins (8) and the locking pin shafts (9) of the locking device. The corrugated reinforcing portion (10) serves as a rail for wheels that is also adaptable to carts, shopping carts, wheelchairs, etc. with different wheelbases. The multi-purpose transport tray (a) is characterized by being formed of metal or synthetic resin.

Advantages of the Invention

[0006] For example, when transporting luggage by driving a cart or a shopping cart on snow, ice, puddles, or muddy ground, simply placing the cart in the multi-purpose transport tray and pushing or pulling it, it can easily slide and move and transport the luggage. There is no adhesion of snow, ice, water, or mud, and there is no need for cleaning even when entering indoors, so it saves time and is also safe. In addition, since the contact area with the ground is wider than that of the wheels of the cart or the runners of the sled-equipped cart, it has stability and can run and transport safely and reassuringly even on some steps or uneven surfaces. Furthermore, since the multi-purpose carrier is small and lightweight, for example, when a delivery person in a high-rise building or condominium does not even need to load it onto a trolley for transportation, or when carrying multiple deformed, small, and lightweight items that cannot be loaded due to shifting during transportation, and delivering or collecting them at multiple locations on multiple floors, it is also possible to directly load them onto the multi-purpose carrier and carry the entire multi-purpose carrier for transportation. In addition, during disasters, disaster recovery, etc., it can be used as an emergency and simple stretcher to carry people such as the elderly, young, men, women, and the injured and sick who cannot move quickly onto the multi-purpose carrier for transportation. It can also be used for transporting sandbags, earth and sand, removing debris and wreckage, etc. It can slide on the ground, snow, water, or muddy ground, attach ropes or strings to the holes in the gripping parts and pull, scoop and collect, or be carried by one to several people for transportation. Furthermore, since the multi-purpose carrier is equipped with a locking device that pierces and fixes to the ground surface in the rectangular groove at the center of the bottom surface of the bottom plate, when placed on a flat ground or inclined ground that is slippery when unloaded, or in a state of compacted snow or snow and ice, even when getting on and off a trolley, shopping cart, or wheelchair, or unloading luggage, it will not move unexpectedly, so the workability is good. Even if it leaves the place while standing still, there is no risk of sliding and colliding with other vehicles, people, buildings, etc. Since the lock pin is interlocked with the lock levers equipped on the outer wall surfaces of both the front wall plate and the rear wall plate, the locking and unlocking operations can be performed simply by shifting the lock levers left and right with hands or feet. The installation of the locking device only requires screwing the lock pin shaft with a support tool, so it can be retrofitted or removed. When it is only used in places where it will not move unexpectedly, or when emphasizing low cost and light weight, the device can be not equipped, or it can be easily attached and detached according to situations such as seasons. Moreover, it can be used as a play equipment on snow, ice, etc., and can be used for multiple purposes throughout the year.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying out the Invention

[0008] Hereinafter, embodiments of the present invention will be described in detail by taking the use of a trolley as an example with reference to FIGS. 1 to 5. FIG. 1 is an external perspective view showing an embodiment of a multi-purpose tray of the present invention, FIG. 2 is a plan view, FIG. 3 is a side view, FIG. 4 is a rear view, and FIG. 5 is an illustration of the use of the trolley.

[0009] FIG. 1 is an external perspective view showing an embodiment of a multi-purpose transport tray of the present invention. The front end and the rear end of the bottom plate (1) are formed into a smooth and curved front wall plate (2) and a rear wall plate (3) that can easily slide on snow, ice, water, mud, or normal ground. The front wall plate (2) and the rear wall plate (3) are connected and integrated with side wall plates (4) that rise up on both sides with a gentle curved surface from both sides of the bottom plate (1). The rising height of the front wall plate (2) and the rear wall plate (3) should be lower for easier boarding and alighting. However, if it is too low, the trolley may deviate during running or snow may enter, so it only needs to be above the axle of the trolley. If it is too low, the trolley may deviate during running or snow may enter. Therefore, it only needs to be above the axle of the trolley.

[0010] Semicylindrical gripping portions (5) that expand outward are provided at the upper peripheral edges of the front wall plate (2), the rear wall plate (3), and the side wall plates (4) for reinforcement and easy gripping. The shape can also be a semi-prismatic shape or a pipe can be incorporated. In addition, the gripping portions are equipped with holes (6) for fixing the multi-purpose transport tray (a) and the trolley (b) or the loaded goods with strings, ropes, or rubber bands at key points in the front, rear, left, and right directions, as well as strings, ropes, or rubber bands for pulling in the front or rear directions.

[0011] In the central part of the lower surface of the bottom plate (1), a rectangular groove (7) that protrudes upward from the front wall plate (2) to the rear wall plate (3) and has an open lower surface and mouth is provided. The bottom plates (1) on both sides of the rectangular groove (7) exhibit a corrugated shape as corrugated reinforcement parts (10). Both the rectangular groove (7) and the corrugated reinforcement part (10) are for preventing lateral sliding and enhancing straightness while reinforcing the bottom plate (1).

[0012] On the upper surface within the rectangular groove (7) that protrudes upward from the front wall plate (2) to the rear wall plate (3) in the central part of the lower surface of the bottom plate (1) and has an open lower surface and mouth, several metal lock pins (8) that pierce and fix to the ground surface to prevent inadvertent movement on a snow surface, ice surface, or muddy ground, a metal lock pin shaft (9) that engages and drives with the lock pin (8), and lock levers (11) that curve upward from the mouths at both ends of the rectangular groove (7) for operating the lock pin shaft (9) and rise up on the outer wall surfaces of the front wall plate (2) and the rear wall plate (3), and lock lever fixtures (12) form a movable part and a housing part for the lock pin (8) and the lock pin shaft (9) of the locking device to operate. By simply shifting the front or rear lock lever (11) left or right with the hand or foot, the lock pin (8) can rotate vertically with respect to the ground surface, pierce the ground surface, make contact, and fix, or the lock lever (11) can be operated to release the lock and return the lock pin (8) horizontally to be housed on the upper surface of the rectangular groove (7). The holding of the locked state or the released state of the lock lever (11) is performed by the lock lever fixture (12) provided on the rear wall plate (3). The lock pin shaft (9) with the lock pin (8) provided on the upper inner surface of the rectangular groove (7) is mounted on the upper surface of the rectangular groove (7) by a lock pin shaft support (13) with a lock pin shaft mounting screw (14). Since the lock pin shaft (9) is housed on the upper surface of the groove, it does not interfere with transportation or sliding. Also, since the locking device is only fixed by the lock pin shaft support tool (13) with the lock pin shaft support tool mounting screw (14) after the manufacture of the multi-purpose transport tray body, it can be retrofitted or removed. When it is not necessary for use in a place where it will not move inadvertently, or when emphasis is placed on being inexpensive and lightweight, it can be easily not equipped or removed, and it can also be attached and detached according to the usage situation and season.

[0013] Both sides of the rectangular groove (7) of the bottom plate (1) are in a corrugated shape as corrugated reinforcing parts (10) to increase the strength of the bottom plate (1), prevent lateral slippage, enhance straight running performance, and further reduce the ground contact resistance so as to be able to run smoothly even on normal ground with patches of snow removed. Also, since the wheelbase varies for different carts and the wheelbases of shopping carts, wheelchairs, etc. also differ, it functions as a rail for wheels adapted to these.

[0014] Next, the embodiments will be mainly described when using the cart. When it is a snow-covered surface from the stage of loading the transported goods from the luggage cart onto the cart (b), place the multi-purpose transport tray (a), displace the lock lever (11) to the right or left with hands and feet to lock it, fix it with the lock lever fixing tool (12), and let it stand still. Then place the cart (b) on it and load the goods on the loading platform of the cart (b). After that, displace the lock lever (11) to the right or left with hands and feet to release the locked state, fix the lock lever (11) at the release position with the lock lever fixing tool (12), and push forward while holding the handle of the cart (b). Since the wheels of the cart (b) push the front wall plate of the multi-purpose transport tray (a), both the cart (b) and the multi-purpose transport tray (a) can slide together on the snow, ice, water, or mud to transport the goods. Similarly, it can also move backward when pulled backward.

[0015] When reaching from a snow-covered road surface to a normal ground or the entrance of a building, after operating and locking the locking device of the multi-purpose transport trolley (a) on the snow at the boundary between the snow and the normal ground, hold the handle of the trolley (b), apply the principle of a lever, lift the front wheels slightly with the rear wheels as the fulcrum and move forward to cross over the front wall plate (2). After the front wheels touch the ground, move forward further and cross over the rear wall plate (3) while lifting the rear wheels slightly and then move forward. When moving backward, it can be done by the reverse operation, and it is also possible to combine forward and backward movements. When loading goods on the trolley (b) on a normal ground and using the multi-purpose transport trolley (a) from the snow at the exit of the building, it can also be done by the same operation. At these times, since the front wall plate (2) and the rear wall plate (3) are lower than the trolley, they do not contact the lower surface of the base of the trolley (b). As a result, after loading, it is possible to enter and exit the building only by moving forward or backward in one direction, so it is efficient and does not get off on snow, ice, water, or mud, so the wheels are not contaminated, and there is no need to clean or slip, so it is labor-saving, hygienic, and safe. In addition, since the multi-purpose transport trolley (a) left on the snow after getting off the trolley (b) is fixed to the ground contact surface, even if the carrier is away, it will not slide and move to an unexpected place on the snow or ice that is likely to slide due to inclination or wind force, which is safe and reassuring.

[0016] After use, since the multi-purpose transport trolley (a) is small and lightweight, it may be leaned against a suitable place at the destination. Also, if snow is attached, it can be removed, loaded together with the loaded goods, and enter the building and run.

[0017] It is also possible to directly load goods on the multi-purpose transport trolley (a) without using the trolley and carry and transport the multi-purpose transport trolley (a) with goods placed on it for the collection and distribution of goods inside and outside the building. In addition, the multi-purpose transport tray (a) can be placed in advance on the loading platform of the trolley (b), and goods can be placed thereon for transportation and delivery. Or, the multi-purpose transport tray (a) can be carried around to collect goods and then directly placed on the trolley (b) for transportation. There are various ways of use like this.

[0018] For trolleys (b) of different sizes, it is appropriate to prepare a multi-purpose transport tray (a) that also matches the size of the trolley. However, when the trolley is smaller than the multi-purpose transport tray (a) it can still be used. Also, it can be used by manufacturing it with an overall size that matches a wide basket trolley or a long six-wheel long trolley.

[0019] The multi-purpose transport tray (a) is small, lightweight, and does not take up much space, so it can be stacked and stored or moved in the cargo bed of a goods vehicle or the trunk of a passenger car either alone or with the trolley (b) placed on it.

Explanation of Reference Numerals

[0020] a Multi-purpose transport tray b Trolley 1 Bottom plate 2 Front wall panel 3 Rear wall panel 4 Side wall panel 5 Gripping part 6 Hole 7 Rectangular groove 8 Lock pin 9 Lock pin shaft 10 Corrugated reinforcing part 11 Lock lever 12 Lock lever fixture 13 Lock pin shaft support 14 Lock pin shaft support mounting screw

Claims

[Claim 1] The box-shaped structure is generally rectangular and has no top, with a front wall (2) and a rear wall (3) that are curved and rise up at the front and rear ends of the bottom plate (1), and side walls (4) that rise up with gentle curves on both sides. Semi-cylindrical gripping parts (5) that extend outward are provided on the upper periphery of the front wall (2), rear wall (3), and side wall (4). Holes (6) for fastening or towing luggage are provided at key points on the front, rear, left, and right sides. A rectangular groove (7) is provided at the center of the underside of the bottom plate (1) from the front wall (2) to the rear wall (3), with an open underside and end. The bottom plate (1) on both sides of the rectangular groove (7) has corrugated reinforcement parts (10). Both the rectangular groove (7) and the corrugated reinforcement parts (10), together with the reinforcement of the bottom plate (1), prevent lateral slippage and improve straightness. Furthermore, the upper surface of the rectangular groove (7) is provided with a groove for preventing accidental movement. a locking device which comprises several metal locking pins (8) which are fixed by piercing the ground surface for locking the locking pins (8), a metal locking pin shaft (9) which is connected to the locking pins (8) and driven, and a lock lever (11) which is curved upward from the ends of the wood at both ends of a rectangular groove (7) and stands on the outer wall surface of each of the front wall panel (2) and the rear wall panel (3) in order to operate the locking pin shaft (9), a lock lever fixing device (12), a lock pin shaft support device (13), and a lock pin shaft support mounting screw (14) which serve as an operating and accommodating portion for the locking pins (8) and the lock pin shaft (9), and a corrugated reinforcement portion (10) which serves as a rail for wheels which can be adapted to dollies, shopping carts, wheelchairs, etc. with different wheel bases, and which is molded from metal or synthetic resin;

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