Multipurpose transport tray

Abstract

This product provides a multi-purpose transport tray that can be used for transporting goods with a hand truck on snow, ice, puddles, and mud, as well as for moving shopping carts and wheelchairs, transporting materials on normal ground, and transporting people, supplies, soil, and debris during disasters and disaster recovery. [Solution] A multi-purpose transport tray is provided, characterized by its roughly rectangular shape with a bottom plate (1), front wall plate (2), rear wall plate (3), and side wall plates (4), which allow for easy sliding transport on snow, ice, mud, or even normal ground. A locking device is equipped in a rectangular groove (7) in the center of the underside of the bottom plate that can be fixed to or released from the ground. Both sides of the rectangular groove (7) are made of corrugated reinforcement parts (10) to serve as rails for wheels that can be adapted to trolleys and wheelchairs with different wheel tracks, and these parts are molded from metal or synthetic resin.

Description

Technical Field

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

Background Art

[0002] Hand trucks are widely used in various industries including business logistics and in general households. However, on snow, ice, mud, or on debris during disasters, the wheels not only do not rotate but also become 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 the snow is shallow, if the wheels of the truck are still covered with snow or mud and enter the indoor area, it will pollute the floor surface, require cleaning, or cause slipping and falling, which is also dangerous. The same applies to the movement of wheelchairs for the disabled and shopping carts. In Patent No. 7104290, since the rear end of the bottom plate is open, it is easy to get on and off a truck, a shopping cart, or a 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, and when getting off on snow at the indoor entrance, snow, ice, water, and mud will adhere to the wheels, and snow, ice, water, and mud will be brought into the indoor area. In addition, since there is no fixing device for the ground contact surface, on slippery snow, ice, or inclined surfaces, when loading and unloading goods or in an empty state without loading, it may unexpectedly move due to nature or wind force, causing obstacles to work, or may skid and collide with people, vehicles, or buildings, etc., which also poses risks. This invention, by providing similar wall plates at the front and back of the tray, allows for a wide range of uses, such as moving forward to get on the tray, moving forward to get off the tray and moving forward to enter a building, or moving backward to get on and off, as well as moving forward to get on and off. As a result, it can be used not only for trolleys, shopping carts, and wheelchairs to travel on snow, ice, water, and mud, but also for transporting goods directly on the tray on snow, ice, water, and mud, for transporting goods on the ground, for carrying the tray with goods on it, for transporting people of all ages and the injured who cannot move quickly during disasters and disaster recovery, for transporting sandbags and soil, and for removing rubble and debris, by sliding it on the ground, puddles, snow, ice, and mud, or by carrying it with one or more people. Furthermore, it is equipped with a locking device for contact with the ground, providing convenience and safety, and differing from conventional technology. [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] Patent No. 7104290 [Overview of the Initiative] [Problems that the invention aims to solve]

[0004] Traditionally, when transporting goods on snow, ice, or mud using wheeled transport vehicles such as trolleys or shopping carts, or wheelchairs, the wheels would not rotate or would get stuck due to the resistance of the snow, ice, or mud. Therefore, methods such as not using trolleys at all, forcibly dragging the trolley, or attaching sleds to the bottom or wheels of the trolley were employed. However, these devices were complex, heavy, and expensive, and could only be used during snowy seasons. Furthermore, even with sled carts, snow would accumulate in the gaps between the wheels, sleds, and sled equipment because the sleds remained attached when entering indoors. This snow would then fall indoors, melt into water droplets due to room temperature, wet the floor and require cleaning, and posed risks of slipping and falling. Furthermore, when placed on slippery flat or sloping ground in compacted snow, there were instances where the equipment would unexpectedly move due to wind, preventing the objective from being achieved, or when workers were away from the area, causing the equipment to slide unexpectedly on flat ground or slopes, reducing work efficiency and posing a risk of collision with other vehicles, people, or buildings. Therefore, the objective is to provide a multi-purpose transport tray that allows for efficient boarding and alighting, and driving, can be easily attached to snow, ice, water, mud, or normal ground, prevents snow and mud from adhering to the wheels of carts, shopping carts, and wheelchairs, can be driven on its own with cargo loaded on snow, ice, water, mud, or normal ground, or can be carried and transported as a transport tool, can be used not only for moving carts, shopping carts, and wheelchairs during the winter, but also for various types of transport and delivery throughout the year, and can be fixed to the ground as needed to stop unexpected movement, thereby improving work efficiency and safety. [Means for solving the problem]

[0005] To solve the above problems, the present invention has the following configuration. The box has a roughly rectangular shape with no top surface, and a front wall plate (2) and a rear wall plate (3) that curve upwards at the front and rear ends of the base plate (1), and side wall plates (4) that rise with gentle curves on both sides. Semi-cylindrical gripping parts (5) that spread outwards are provided on the upper periphery of the front wall plate (2), rear wall plate (3), and side wall plate (4). There are mounting holes (6) at key points on the front, rear, left, and right for securing and towing cargo. A rectangular groove (7) is equipped on the center of the bottom surface of the base plate (1), extending upwards from the front wall plate (2) to the rear wall plate (3), with the bottom surface and end grain open. The base plate (1) on both sides of the rectangular groove (7) is reinforced with corrugated parts (10), and the rectangular groove (7) is also corrugated. The corrugated reinforcement section (10), along with the reinforcement of the bottom plate (1), prevents lateral slippage and improves straight-line movement. Furthermore, the upper surface inside the rectangular groove (7) is equipped with several metal lock pins (8) that are fixed by being thrust into the ground surface to prevent unintentional movement, a metal lock pin shaft (9) that is connected to and driven by the lock pins (8), and lock levers (11) that curve upward from the ends of both ends of the rectangular groove (7) and rise up onto the outer walls of the front wall plate (2) and rear wall plate (3), respectively, for operating the lock pin shaft (9). The lock levers (11), lock lever fixing devices (12), lock pin shaft support devices (13), and lock pin shaft support device mounting screws (14) serve as the operating and housing parts for the lock pins (8) and lock pin shafts (9) of the locking device. The corrugated reinforcement section (10) serves as rails for wheels that can be used with trolleys, shopping carts, wheelchairs, etc. with different wheel tracks. These components are molded from metal or synthetic resin. [Effects of the Invention]

[0006] For example, when transporting goods on snow, ice, puddles, or mud using a trolley or shopping cart, simply placing the trolley inside the multi-purpose transport tray and pushing or pulling it will allow you to... It allows for easy gliding and transport of goods, and since it doesn't accumulate snow, ice, water, or mud, and doesn't require cleaning even when brought indoors, it saves time and is safe. Furthermore, because it has a larger contact area with the ground than the wheels of a hand truck or the sleds of a hand truck, it is more stable and can safely and securely travel and transport goods even over slight bumps or uneven surfaces. Furthermore, because the multi-purpose transport tray is small and lightweight, for example, when a delivery person is carrying multiple irregularly shaped or small, lightweight items that do not warrant being loaded onto a trolley, or that would collapse during loading, and is delivering or collecting items to multiple locations on multiple floors in a high-rise building or apartment complex, they can load the items directly onto the multi-purpose transport tray and carry the entire tray by hand. Furthermore, in times of disaster or during disaster recovery, it can be used as an emergency makeshift stretcher to transport people of all ages, including the injured and ill, who are unable to move quickly. It can also be used to transport sandbags, soil, rubble, and debris, sliding on the ground, snow, water, and mud, or by attaching strings or ropes to the holes in the gripping parts to pull or scoop up items. It can also be carried by one or several people. Moreover, the multi-purpose transport tray is equipped with a locking device that penetrates and secures to the ground in a rectangular groove in the center of the underside of the bottom plate. This prevents it from moving unexpectedly when placed on slippery flat or sloping ground, such as when loading or unloading carts, shopping carts, or wheelchairs, or when loading or unloading cargo, resulting in improved work efficiency. Even if left unattended, there is no risk of it sliding and colliding with other vehicles, people, or buildings. The locking pin is linked to a locking lever located on the exterior surface of both the front and rear wall panels, allowing the lock and unlock to be operated simply by moving the locking lever left or right with your hand or foot. Since the locking device is attached simply by screwing the locking pin shaft with a support, it can be added or removed later. Therefore, it can be used only in locations where it will not be moved unintentionally, or when cost and lightness are important, the device can be omitted, or it can be easily attached or removed depending on the season or other conditions. Furthermore, it can be used as playground equipment on snow, ice, and other surfaces, making it a versatile tool for year-round use. [Brief explanation of the drawing]

[0007] [Figure 1] An external perspective view showing an embodiment of the present invention. [Figure 2] The same floor plan. [Figure 3] Side view of the same. [Figure 4] Rear view of the same. [Figure 5] An example of using the same trolley. [Modes for carrying out the invention]

[0008] Hereinafter, embodiments of the present invention will be described in detail based on Figures 1 to 5, using their application to a trolley as an example. Figure 1 is an external perspective view showing an embodiment of the multipurpose tray of the present invention, Figure 2 Figure 1 is a plan view, Figure 3 is a side view, Figure 4 is a rear view, and Figure 5 is an example of the bogie in use.

[0009] Figure 1 is an external perspective view showing an embodiment of the multi-purpose transport tray of the present invention. The front and rear ends of the bottom plate (1) are smoothly curved and rising front wall plates (2) and rear wall plates (3) to allow for easy sliding on snow, ice, water, mud, and normal ground. The front wall plates (2) and rear wall plates (3) are connected and integrated with side wall plates (4) that rise from both sides of the bottom plate (1) with gently curved surfaces. The lower the rising height of the front wall plates (2) and rear wall plates (3), the easier it is to get on and off. If the clearance is too low, the bogie may derail or snow may enter while the vehicle is in motion, so it should be above the axle of the bogie.

[0010] The front wall plate (2), rear wall plate (3), and side wall plate (4) are provided with outwardly extending semi-cylindrical gripping sections (5) on their upper edges for reinforcement and to facilitate gripping. The shape can also be semi-rectangular or incorporates pipes. The gripping sections are also equipped with holes (6) at key locations on the front, back, left, and right sides for attaching strings, ropes, or rubber bands to secure the multi-purpose transport tray (a) to the trolley (b) or loaded cargo, or for towing it forward or backward.

[0011] The bottom plate (1) is equipped with a rectangular groove (7) that protrudes upward from the front wall plate (2) to the rear wall plate (3), with the bottom surface and end grain open. The bottom plate (1) on both sides of the rectangular groove (7) has a corrugated shape as a corrugated reinforcement section (10). Both the rectangular groove (7) and the corrugated reinforcement section (10) serve to reinforce the bottom plate (1) and prevent lateral slippage, thereby improving straight-line movement.

[0012] The bottom plate (1) has a rectangular groove (7) that protrudes upward from the center of the bottom surface, from the front wall plate (2) to the rear wall plate (3), with the bottom surface and end grain open. On the upper surface of this groove are several metal lock pins (8) that are driven by being thrust into the ground to prevent accidental movement on snow, ice, or mud, and metal lock pin shafts (9) that are connected to and driven by the lock pins (8). Curving upward from the end grain at both ends of the rectangular groove (7) for operating the lock pin shafts (9) are the outer walls of the respective front wall plate (2) and rear wall plate (3). The locking device, consisting of a raised lock lever (11) and a lock lever fixing device (12), has a movable part and a housing part for the lock pin (8) and lock pin shaft (9) to operate. By moving the lock lever (11) forward or backward to the left or right with one's hand or foot, the lock pin (8) rotates perpendicular to the ground surface to pierce or contact the ground surface and fix it in place, or the lock is released by operating the lock lever (11), returning the lock pin (8) to a horizontal position and housing it on the upper surface of the rectangular groove (7). The lock lever (11) is held in either the locked or unlocked state by a lock lever fixing device (12) mounted on the rear wall plate (3). The lock pin shaft (9) with a lock pin (8) is mounted on the upper surface inside the rectangular groove (7). A lock pin shaft support (13) is attached to the upper surface of the rectangular groove (7) by a lock pin shaft support mounting screw (14), and since the lock pin shaft (9) is housed on the upper surface of the groove, it does not interfere with transportation or sliding. In addition, 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 emphasizing low cost and light weight, 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 the shape of a waveform as a waveform reinforcing part (10) to increase the strength of the bottom plate (1), prevent side slipping, enhance straight running performance, and further reduce the ground contact resistance on the normal ground where the snow is interrupted so that it can run smoothly. At the same time, because the wheelbase of the trolley is diverse and the wheelbase of shopping carts, wheelchairs, etc. is also different, it also functions as a rail for wheels adapted to these.

[0014] Next, the embodiment will be mainly described when using the trolley. When it is a snow-covered surface from the stage of loading the transported goods from the luggage cart onto the trolley (b), the multi-purpose transport tray (a) is arranged, the lock lever (11) is displaced right or left with hands and feet to a locked state, fixed with the lock lever fixing tool (12), and left standing. Then, the trolley (b) is placed on it, and the goods are loaded on the loading platform of the trolley (b). After that, the lock lever (11) is displaced right or left with hands and feet to release the locked state, and the lock lever (11) is fixed at the release position with the lock lever fixing tool (12). When holding the handle of the trolley (b) and pushing forward, the wheels of the trolley (b) push the front wall plate of the multi-purpose transport tray (a), so that both the trolley (b) and the multi-purpose transport tray (a) can slide on the snow, ice, water, and mud integrally to transport the goods. Similarly, it can also move backward when pulled backward.

[0015] Once you reach normal ground or an indoor entrance from the snowy road surface, operate the locking device on the multi-purpose transport tray (a) on the snow at the boundary between the snow and the normal ground to lock it in place. Then, hold the handle of the trolley (b) and, using the principle of leverage, move forward while slightly lifting the front wheels with the rear wheels as the pivot point to get over the front wall plate (2). After the front wheels have touched the ground, move forward further, slightly lifting the rear wheels to get over the rear wall plate (3) and move forward. To move backward, you can do so by reversing the operation, and you can also combine forward and reverse movements. Normally, when loading goods onto a trolley (b) on the ground and then using the multi-purpose transport tray (a) from the snow at an indoor exit, the same procedure can be followed. In these cases, the front wall plate (2) and the rear wall plate (3) are lower than the trolley, so they do not come into contact with the underside of the trolley (b) platform. This allows for efficient entry and exit from indoors by moving only forward or backward after loading. It also avoids having to descend onto snow, ice, water, or mud, preventing wheel contamination, cleaning, and slipping, thus saving effort, labor, hygiene, and safety. Furthermore, since the multi-purpose transport tray (a) left on the snow after being unloaded from the trolley (b) is fixed to the ground, it is safe and secure because even if the transporter is far away, it will not slide to unexpected locations on the snow or ice, which can be slippery due to slopes or wind.

[0016] After use, the multi-purpose transport tray (a) is small and lightweight, so it can be propped up in a suitable place at the destination, or if snow is attached to it, it can be removed and carried indoors along with the loaded cargo and driven on.

[0017] You can load and transport goods directly onto the multi-purpose transport tray (a) without using a trolley, or you can place goods on the multi-purpose transport tray (a) for collection and delivery of goods indoors or outdoors and carry the multi-purpose transport tray (a) along with the goods. Furthermore, the multi-purpose transport tray (a) can be placed on the platform of a trolley (b) in advance, and then goods can be placed on it for transport and delivery. Alternatively, the multi-purpose transport tray (a) can be carried around to collect goods, which can then be placed directly onto the trolley (b) for transport. There are many different ways to use it.

[0018] For trolleys of different sizes (b), it is appropriate to prepare a multi-purpose transport tray (a) that matches the size of the trolley, but if the trolley is smaller than the multi-purpose transport tray (a) It can be used. Furthermore, it can be used for wide cage trolleys and long 6-wheel trolleys by manufacturing them to match the overall size.

[0019] The multi-purpose transport tray (a) is small, lightweight, and space-saving, so it can be stored and moved in the cargo area of ​​a freight car or in the trunk of a passenger car, either on its own or with a trolley (b) placed on top. [Explanation of symbols]

[0020] a multi-purpose transport tray b. Trolley 1 Bottom plate 2 Front wall plate 3 Rear wall plate 4 Side wall panels 5 Gripping part 6 holes 7 Rectangular groove 8 lock pins 9 Lock pin shaft 10. Waveform reinforcement section 11. Locking lever 12 Lock lever fixing device 13. Lock pin shaft support 14. Lock pin shaft support mounting screw

Claims

1. The base plate (1) has a roughly rectangular box shape with no top surface, featuring a curved front wall plate (2) and a rear wall plate (3) at its front and rear ends, and gently curved side wall plates (4) on both sides. Semi-cylindrical gripping parts (5) that extend outward are provided on the upper periphery of the front wall plate (2), rear wall plate (3), and side wall plate (4). There are mounting holes (6) at key locations on the front, rear, left, and right sides for securing and towing cargo. A rectangular groove (7) is provided in the center of the bottom surface of the base plate (1), extending upward from the front wall plate (2) to the rear wall plate (3), with the bottom surface and end faces open. The base plate (1) on both sides of the rectangular groove (7) is reinforced with corrugated reinforcement parts (10). Both the rectangular groove (7) and the corrugated reinforcement parts (10) reinforce the base plate (1) and prevent lateral slippage, improving straight-line movement. Furthermore, the upper surface inside the rectangular groove (7) is designed to prevent unintentional movement. A multipurpose transport tray (a) is characterized by having a locking device consisting of several metal lock pins (8) that are pierced into and fixed to the ground surface for locking, a metal lock pin shaft (9) that is connected to and driven by the lock pins (8), and lock levers (11) that curve upward from the ends of both ends of a rectangular groove (7) and rise up on the outer walls of the front wall plate (2) and rear wall plate (3) respectively for operating the lock pin shaft (9), a lock lever fixing device (12), a lock pin shaft support (13), and a lock pin shaft support mounting screw (14) which serve as the operating and housing parts for the lock pins (8) and lock pin shaft (9), and a corrugated reinforcing part (10) which serves as a rail for wheels that can be adapted to trolleys, shopping carts, wheelchairs, etc. with different wheel tracks, and these parts are molded from metal or synthetic resin.

2. A multipurpose transport tray according to claim 1, which is not equipped with a locking device comprising several metal locking pins (8) for fixing to a ground surface, a metal locking pin shaft (9) for connecting with and driving the locking pins (8), a locking lever (11) for operating the locking pin shaft (9), a locking lever fixing device (12), a locking pin shaft support (13), and a locking pin shaft support mounting screw (14).

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