Rear door damage prevention tool

Abstract

To provide a rear door damage prevention tool capable of being easily mounted on a rear door of a cargo box of a truck and surely preventing damage or the like of the rear door.SOLUTION: A rear door damage prevention tool 1 includes a body part 2 attached to a pair of lock pipes 25,26 of a rear door 24 of a vehicle cargo box 23, and a cushion part 5 erected from the body part 2. The main body 2 includes a base member 10 bridged between the pair of lock pipes 25,26, and a pair of hooks 11,12 fixed to the back surface of the base member 10 and engaged with the pair of lock pipes 25,26.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a rear door breakage prevention device for a vehicle luggage box. [Background technology]

[0002] Trucks, or freight vehicles (transport vehicles), come in two types: flat-body trucks with a flat loading bed and van-body trucks with a box-shaped loading bed. Van bodies have rear doors that open like a folding screen at the rear. There are also wing bodies with cargo boxes that open on both sides to make loading and unloading easier. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2024-038924 Summary of the Invention [Problem to be solved by the invention]

[0004] When the rear door of a van body is opened to load or unload cargo, the rear door may rotate approximately 270 degrees and come into contact with the van body (cargo box). For example, if the rear door is blown by a strong wind, it may hit the van body hard, causing damage or breakage to the rear door. If the rear door is damaged and cannot be opened or closed, it becomes difficult to operate the truck, which could result in significant economic losses. For this reason, there is a need for a breakage prevention device that can be easily attached to the rear door and can reliably prevent damage to the rear door.

[0005] The present invention provides a rear door breakage prevention device that can be easily attached to the rear door of a vehicle luggage box and can reliably prevent damage to the rear door. [Means for solving the problem]

[0006] A rear door breakage prevention device according to an embodiment of the present invention is characterized by comprising a main body portion attached to a pair of lock pipes on the rear door of a vehicle cargo box, and a cushion portion erected from the main body portion.

[0007] The main body portion is characterized by comprising a base member that is bridged across the pair of lock pipes, and a pair of hooks that are fixed to the back surface of the base member and engage with the pair of lock pipes. The pair of hooks are characterized in that the openings of the pair of hooks are back to back. The lock pipe is characterized by having a metal fitting to which a wire chain can be attached.

[0008] The cushion portion is characterized by including a column extending in a direction perpendicular to the rear door, and a cushion rubber fixed to the top of the column. The column is characterized in that its length in the extending direction is adjustable. [Effects of the Invention]

[0009] The rear door breakage prevention device of the present invention can be easily attached to the rear door of a vehicle luggage box, and can reliably prevent damage to the rear door. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a diagram showing a packing box 23 of a truck 20. FIG. [Figure 2] 10 is a view showing rear doors 24L and 24R of a cargo box 23. FIG. [Figure 3] FIG. 1 is a perspective view showing a rear door breakage prevention device 1. [Figure 4] FIG. 2 is a plan view showing the rear door breakage prevention device 1. [Figure 5] FIG. 2 is a rear view showing the rear door breakage prevention device 1. [Figure 6] 1 is a diagram showing a rear door breakage prevention device 1 attached to a freight vehicle 20. FIG. [Figure 7]10 is a perspective view showing the rear door breakage prevention device 1 in which the length of the cushion part 5 has been adjusted to be shorter. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0011] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A breakage prevention device for a rear door of a cargo box according to an embodiment of the present invention will be described below with reference to the drawings. In the various drawings, the same members or elements are designated by the same reference numerals and their description will be omitted.

[0012] [Freight vehicle 20] FIG. 1 is a diagram showing a cargo box 23 of a truck 20. As shown in FIG. FIG. 2 is a diagram showing the rear doors 24L, 24R of the cargo box 23. As shown in FIG.

[0013] The freight vehicle (vehicle) 20 is a transport vehicle such as a truck, and is equipped with a substantially rectangular parallelepiped cargo box 23. The type and size of the freight vehicle 20 are not particularly limited, and may be any of light, small, medium, large, special, etc.

[0014] In addition to the cargo box 23, the cargo vehicle 20 includes a cabin 21 having a driver's seat and the like, and a chassis 22 that supports the cargo box 23. The cargo box 23 is mounted on the upper surface of the chassis 22 behind the cabin 21.

[0015] The cargo box (vehicle cargo box) 23 is formed of a metal such as aluminum or an alloy. The material of the cargo box 23 is arbitrary. The type, function, and size of the cargo box 23 are not particularly limited. The cargo box 23 has two double-door rear doors 24 (24L, 24R) on the rear side. The rear doors 24L, 24R close the rear side (opening) of the cargo box 23 by contacting each other at the center of the rear side.

[0016] The rear doors 24L, 24R are rotatably attached to the side edges (opening edges) of the rear surface of the cargo box 23. The rear doors 24L, 24R each have an opening angle (movable angle) of approximately 270°.

[0017] Two (a pair of) lock pipes 25, 26 are arranged on each rear door 24 to keep (lock) the cargo box 23 closed. In addition, retaining metal fittings 27, 28 for holding the lock pipes 25, 26 are also attached to the rear door 24.

[0018] The lock pipes 25, 26 are arranged parallel to each other in the vertical direction at the tip end of the rear door 24. The lock pipes 25 and 26 are arranged at a distance of approximately 400 mm from each other. The lock pipes 25, 26 are also arranged at a gap of approximately 10 to 20 mm from the rear door 24.

[0019] A lock handle 29 is attached to the lock pipes 25, 26 to move the lock pipes 25, 26 up and down and rotate them about their axes.

[0020] [Rear door damage prevention device 1] 3 to 5 are diagrams showing the rear door breakage prevention device 1, with FIG. 3 being a perspective view, FIG. 4 being a plan view, and FIG. 5 being a rear view.

[0021] The rear door breakage prevention device 1 is an L-shaped member that is attached to the rear door 24. The rear door breakage prevention device 1 is composed of a main body 2 and a cushion 5. The cushion 5 is erected on the front end of the main body 2 (base member 10), so that the device has an L-shape when viewed as a whole.

[0022] The main body 2 is a member that is attached to the rear door 24, and includes a base member 10, hooks 11 and 12, and a U-shaped metal fitting 13. The base member 10 is made of a square timber or the like, and is about 750 mm long, about 90 mm wide, and about 35 mm thick. As will be described later, the base member 10 is mounted horizontally while being pressed against the lock pipes 25, 26. In other words, the base member 10 is attached so as to be perpendicular to the lock pipes 25, 26.

[0023] The hooks 11 and 12 are J-shaped metal fittings of the same size, and are fixed to the rear surface (back face) of the base member 10. The hooks 11 and 12 are adapted to engage with (hook onto) the lock pipes 25 and . The hook 11 is fixed to the distal end side of the base member 10 with its opening facing the distal end side. The hook 12 is fixed to the proximal end side of the base member 10 with its opening facing the proximal end side. In other words, the pair of hooks 11, 12 are fixed so that their openings face back to back (back to back).

[0024] The spacing (approximately 400 mm) between the hooks 11 and 12 is the same as the spacing between the lock pipes 25 and 26. As a result, the hook 11 is hooked onto the lock pipe 25, and the hook 12 is hooked onto the lock pipe 26.

[0025] The U-shaped metal fitting 13 is fixed to the base end surface of the base member 10. A wire chain 15 or the like can be attached to the U-shaped metal fitting 13. This prevents the rear door breakage prevention device 1 from falling off the truck 20 even if it falls off the rear door 24.

[0026] The cushion portion 5 is a member that stands upright from the front end of the main body portion 2 (base member 10), and is disposed so as to be perpendicular to the rear doors 24L, 24R. The cushion portion 5 is made up of a column 17 and a cushion rubber 18, and has a length of about 200 to 300 mm.

[0027] The column 17 is made by stacking 5 to 7 pieces of lumber, each about 50 mm long, about 90 mm wide, and about 35 mm thick. The column 17 is formed by cutting lumber of the same size as the base member 10, stacking them, and fixing them together.

[0028] The cushion rubber 18 is a cushion member made of rubber and fixed to the tip end surface (top) of the column 17. The shape of the cushion rubber 18 is, for example, trapezoidal or round, and is not particularly limited.

[0029] [Installation procedure] FIG. 6 is a diagram showing the rear door breakage prevention device 1 attached to a freight vehicle 20. As shown in FIG. The procedure for attaching the rear door breakage prevention device 1 to the rear door 24 of the cargo box 23 of the freight vehicle 20 will be described below. The rear door breakage prevention device 1 is attached so as to span two lock pipes 25 and 26.

[0030] First, the main body 2 (the rear surface of the base member 10) of the rear door breakage prevention device 1 is pressed against the two lock pipes 25, . At this time, the main body 2 is tilted obliquely so that the tip side of the base member 10 is on the upper side and the base side is on the lower side. The main body 2 may also be tilted obliquely so that the tip side is on the lower side and the base side is on the upper side. More specifically, the main body 2 is pressed against the lock pipes 25 and 26 while being tilted obliquely so that the hooks 11 and 12 are disposed between the lock pipes 25 and 26.

[0031] Next, with the main body 2 pressed against the lock pipes 25, 26, the posture of the main body 2 is made horizontal. As a result, the hooks 11, 12 approach the lock pipes 25, 26 and become caught on the lock pipes 25, 26. In other words, the opening of the hook 11 fits into the lock pipe 25, and the opening of the hook 12 fits into the lock pipe 26.

[0032] As a result, the rear door breakage prevention device 1 is attached so as to span the lock pipes 25 and 26. The rear door breakage prevention device 1 is movable in the vertical direction along the lock pipes 25, 26, but is held at a position where the hooks 11, 12 abut against the retaining metal fittings 27.

[0033] Next, the wire chain 15 is attached to the U-shaped metal fitting 13 of the base member 10. This wire chain 15 is wound around the lock pipes 25 and 26. This prevents the rear door breakage prevention device 1 from falling off the truck 20 even if it falls off the lock pipes 25, 26.

[0034] When the rear door breakage prevention device 1 is attached to the lock pipes 25, 26, the cushion portion 5 is in a position extending toward the rear of the vehicle. In other words, the cushion portion 5 is in a position perpendicular to the rear doors 24L, 24R. This position is maintained even when the rear door 24 is opened or closed.

[0035] Therefore, when the rear door 24 is rotated approximately 270°, the cushion rubber 18 disposed at the tip of the cushion portion 5 abuts against the side of the cargo box 23. Therefore, the tip of the rear door 24 does not abut against the side of the cargo box 23, and damage to the cargo box 23 or the rear door 24 can be reliably prevented.

[0036] FIG. 7 is a perspective view showing the rear door breakage prevention device 1 in which the length of the cushion portion 5 has been adjusted to be shorter. The height (length in the extending direction) of the column 17 of the cushion part 5 can be adjusted by changing the number of stacked square pieces. In Fig. 7, the column 17 is formed by stacking five square pieces.

[0037] The rear door breakage prevention device 1 of this embodiment can be easily attached to the rear door 24, and can reliably prevent damage to the rear door 24 and the like.

[0038] The present invention is not limited to the above-described embodiments, and includes various modifications to the above-described embodiments without departing from the spirit of the present invention. The specific shapes and configurations given in the embodiments are merely examples, and can be modified as appropriate.

[0039] The cargo box 23 may be any type that has a rear door 24 on the rear side (opening), and may be any of the so-called van body, wing body, convertible top wing, refrigerated vehicle, refrigerated / freezer vehicle, cargo bed for a motorcycle, cargo bed for a light vehicle, etc.

[0040] The base member 10 and column 17 of the rear door breakage prevention device 1 are not limited to being made of lumber (wood), but may also be made of metal or resin. The rear door breakage prevention device 1 is not limited to an L-shape, but may be, for example, a T-shape in which the cushion part 5 is erected at the center front of the main body part 2. Furthermore, a plurality of cushion parts 5 may be provided upright on the main body part 2. For example, cushion parts 5 (three in total) may be provided upright at the tip, center and base end of the main body part 2, respectively. The main body 2 is not limited to a square timber (rod), but may be in the shape of a flat plate or the like.

[0041] The length of the base member 10 and the height of the column 17 may be changed as desired depending on the size of the rear door 24. The spacing between the hooks 11 and 12 can be adjusted to match the spacing between the lock pipes 25 and 26. The size of the hooks 11 and 12 can also be adjusted to match the thickness of the lock pipes 25 and 26.

[0042] The rear door breakage prevention device 1 may be attached to one of the rear doors 24L, 24R, or may be attached to both of them. A plurality of rear door breakage prevention devices 1 may be attached to one of the rear doors 24 (for example, rear door 24L). The number and size of the rear door breakage prevention devices 1 attached to the rear door 24L may differ from the number and size of the rear door breakage prevention devices 1 attached to the rear door 24R. [Explanation of symbols]

[0043] 1. Rear door damage prevention device for cargo box 2 Main body 5 Cushion part 10 Base member 11,12 Hook 13 U-shaped bracket 15 Wire Chain 17 Column 18 Cushion Rubber 20 Freight vehicles (vehicles) 21 Cabin 22 chassis 23 Cargo box (cargo box for vehicle) 24 Rear door 25,26 Rock Pipe 27,28 Retaining bracket 29 Lock Handle

Claims

1. a main body attached to a pair of lock pipes provided on a rear door of the vehicle luggage box; a cushion portion erected from the main body portion; A rear door breakage prevention device comprising:

2. The main body portion is a base member that is bridged across the pair of lock pipes; a pair of hooks fixed to the rear surface of the base member and engaging with the pair of lock pipes; 2. The rear door breakage prevention device according to claim 1, further comprising:

3. 3. The rear door breakage prevention device according to claim 2, wherein the pair of hooks have openings facing back to back.

4. 2. The rear door breakage prevention device according to claim 1, further comprising a metal fitting to which a wire chain can be attached to be wound around the lock pipe.

5. The cushion portion is a column extending in a direction perpendicular to the rear door; a cushion rubber fixed to the top of the column; 2. The rear door breakage prevention device according to claim 1, further comprising:

6. 6. The rear door breakage prevention device according to claim 5, wherein the length of the column in the extending direction is adjustable.

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