Vehicle having cargo box

Abstract

To provide a vehicle having a cargo box, which is provided with a falling inhibition facility that can reduce the risk that a worker working on the cargo box stumbles and can secure safety of the worker having fallen down.SOLUTION: In a garbage truck 1 that is configured so that safety fences 3 composed of supporting posts 4 and fence bodies 5 are arranged on a cargo box 2 storing mechanical equipment for collecting garbage and a rage surrounded by the safety fences 3 is set as a working space WS, rod-like members 81 whose one ends are connected to the supporting posts 4 and whose other ends are connected to the fence bodies 5 are arranged at inner corner sides where the supporting posts 4 cross the fence bodies 5, so that the support posts 4, the fence bodies 5 and the rod-like members 81 form fitting holes FH through which can engage with hooks 104 for inhibiting falling down. When performing work in the working space WS on the cargo box 2, a worker performs the work while fitting the hooks 104 of an instrument 100 for inhibiting fall-down to the fitting holes FH.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a vehicle having a cargo box, and more particularly to a vehicle having a cargo box with a ceiling and a work area surrounded by a safety fence formed above the cargo box. [Background technology]

[0002] Among vehicles that can run on general public roads, there are vehicles that are equipped with devices or machinery to achieve a specific purpose. Among these vehicles, there are vehicles that house devices or machinery in a roughly box-shaped cargo box with a roof (for example, a garbage truck that houses machinery for garbage collection, a vending car that houses loading equipment for cans and plastic bottles for refilling vending machines, and a tank truck that has a tank facility for storing liquids, gases, etc. as a cargo box).

[0003] In some vehicles equipped with such a cargo box with a ceiling, the space above the ceiling is used as a space for loading luggage. In such vehicles, workers may work on the cargo box, so the cargo box is provided with a measure to prevent the worker from falling.

[0004] Fig. 4 shows an example of a fall prevention system for workers on this type of vehicle (see Patent Document 1). The fall prevention system shown is for a vehicle a with a roof rack c for loading luggage on the ceiling of a cargo box b, and is equipped with a rail e that extends in the vehicle length direction (front-to-rear direction of the vehicle) along a side wall d on the roof rack c, and a slider f that can slide freely along this rail e, and a worker working on the roof rack c attaches a hook attached to his / her own fall prevention device (safety belt) to this slider f to perform work. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Utility Model Registration No. 3211247 Summary of the Invention [Problem to be solved by the invention]

[0006] In this type of fall prevention equipment, when a worker moves in the vehicle length direction, the slider f also moves in the vehicle length direction, so the worker can move freely in the vehicle length direction on the roof rack c without being restricted by the fall prevention device (restrictions on the range of movement due to the length of the string-like or belt-like connecting strap that connects the fall prevention device and the hook). Therefore, the worker can efficiently carry out work on the roof rack c.

[0007] On the other hand, however, since the slider f in conventional fall prevention equipment is movable, for example, if a worker falls from the roof rack c to the outside of the vehicle, there is a risk that the slider f will slide toward the point of fall. Such an unintended slide of the slider f acts to shorten the distance between the fallen worker and the ground, and there is a risk that the safety of the worker cannot be ensured.

[0008] The present invention has been made in consideration of these problems, and its object is to provide a vehicle having a cargo box equipped with fall prevention equipment that reduces the risk of tripping for workers working on the cargo box and ensures safety in the event of a fall. [Means for solving the problem]

[0009] In order to achieve the above-mentioned objective, the vehicle having a cargo box of the present invention is a vehicle equipped with a cargo box with a ceiling, and a work area surrounded by a safety fence is formed above the cargo box, and the safety fence is composed of a plurality of pillars that are erected on the ceiling surface of the cargo box and a fence body supported by the pillars, and is characterized in that the pillars and / or the fence body are provided with hook attachment portions for attaching and detaching fall prevention hooks worn by workers working in the work area.

[0010] In this invention, the hook attachment section for attaching and detaching the fall prevention hook is provided on the support and / or fence body of the safety fence, so the attached hook does not slide as in conventional fall prevention equipment. Therefore, unintended sliding of the hook does not occur in the event of a fall, etc., and the safety of the worker can be ensured by the fall prevention device.

[0011] In a preferred embodiment, the hook mounting portion is attached so as not to protrude inside the safety fence.

[0012] By installing the hook attachment part in this manner so that it does not protrude inside the safety fence, the risk of a worker working in the work area above the cargo box tripping over the hook attachment part is greatly reduced, making it possible to provide a vehicle with a cargo box equipped with fall prevention equipment that greatly reduces the risk of tipping over.

[0013] In addition, as a preferred embodiment of the present invention, the hook mounting portion is connected at one end to the fence body arranged extending in the vehicle width direction and at the intersection where the fence body arranged extending in the vehicle length direction intersects with the fence body arranged extending in the vehicle length direction, thereby forming a mounting hole that can engage with the fall prevention hook.

[0014] In this embodiment of the invention, the hook attachment portion is formed at the intersection of the fence body arranged to extend in the vehicle width direction and the fence body arranged to extend in the vehicle length direction, so that, for example, when the safety fence is arranged in a substantially rectangular shape, the hook attachment portion can be formed at the four corners (inner corners). Since the vicinity of the inner corners of the safety fence is a place where workers seldom step in during normal work, there is almost no risk of the worker tripping on the hook attachment portion provided at the inner corner. In addition, by arranging the hook attachment portions at the four corners of the work area, the worker can select the hook attachment portion in the most appropriate position according to the work position and attach the hook of the fall prevention device, and the worker can work safely throughout the entire work area.

[0015] In another preferred embodiment of the present invention, the hook mounting portion is characterized in that one end is connected to the support and the other end is connected to the fence body at the intersection where the support and the fence body intersect, thereby forming an mounting hole that can engage with the hook for preventing a fall.

[0016] In this invention, the hook attachment part is formed so as to connect the post and the fence body at the intersection where they intersect, so that the hook attachment part can be formed without protruding inside the safety fence. Moreover, for example, by providing hook attachment parts on multiple posts, the hook attachment parts can be arranged to cover the entire work area. Therefore, workers can attach the hook of the fall prevention device to the hook attachment part in the most appropriate position according to their work position and perform work, so that work can be performed safely throughout the entire work area. Effect of the Invention

[0017] According to the present invention, it is possible to provide a vehicle having a cargo box equipped with fall prevention equipment that reduces the risk of a worker working in a work area tripping over the hook attachment part and thus reduces the risk of the worker falling. In addition, since the hook attached to the hook attachment part does not slide, the safety of the worker in the event of a fall can be ensured. [Brief description of the drawings]

[0018] [Figure 1] 1 is an exploded perspective view showing an example of a fall prevention device installed on a cargo box of a vehicle having the cargo box according to the present invention; FIG. [Diagram 2] 13 is an exploded oblique view showing another example of a fall prevention system for a vehicle having the same cargo box. FIG. [Diagram 3] FIG. 1 is a front view showing an example of a schematic configuration of a fall prevention device (safety belt) used by a worker. [Figure 4] 1 is a perspective view showing a conventional fall prevention system for a vehicle having a cargo box. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In this specification and the drawings, substantially the same elements are designated by the same reference numerals, and duplicated explanations will be omitted.

[0020] EMBODIMENT 1 A vehicle having a cargo box according to the present invention is a vehicle in which devices or machinery for achieving a specific purpose are housed in the cargo box. In this embodiment, a garbage truck 1 having garbage collection machinery and equipment housed in the cargo box is exemplified.

[0021] As is well known, a refuse compactor 1 is a vehicle that collects refuse and transports it to a disposal facility. The loading box 2 of the refuse compactor 1 is in the shape of a roughly box with a ceiling, and an inlet for loading refuse is provided at the rear end of the loading box 2. Behind this inlet are housed mechanical equipment for collecting refuse, such as a press plate for compressing the refuse, a refuse storage section for storing the refuse, and a discharge plate for discharging the refuse (all of which are omitted from the illustration).

[0022] In this embodiment of the refuse compactor 1, as shown in Fig. 1, a work area WS surrounded by a safety fence 3 is formed on a packing box 2. The work area WS is an area suitable for temporarily storing luggage such as garbage and equipment (cleaning tools, etc.) that cannot be stored in the garbage storage section of the refuse compactor 1, and workers can perform tasks such as loading and unloading garbage in this work area WS.

[0023] The safety fence 3 is a fence primarily intended to prevent luggage placed on the work area WS and workers working on the work area WS from falling, and is primarily composed of a number of metal pillars 4, 4, ... that are erected on the upper surface (ceiling surface) of the cargo box 2, and a metal fence body 5 supported by these pillars 4, 4, ...

[0024] In this embodiment, the safety fence 3 is composed of a safety fence 3a that is approximately U-shaped in plan view and arranged on one side in the vehicle width direction (left and right direction of the vehicle) A, and a safety fence 3b that is approximately U-shaped in plan view and arranged on the other side in the vehicle width direction A.By arranging this pair of safety fences 3a, 3b opposite each other, a roughly rectangular work area WS surrounded by the safety fences 3a, 3b is formed on the upper surface of the cargo box 2.

[0025] Each safety fence 3a, 3b has a structure in which a fence body 5 is connected to the tip of a plurality of posts 4, 4, .... Specifically, the fence body 5 is formed in a roughly U-shape in plan view to match the planar (upper) shape of the packing box 2, and a plurality of posts 4, 4, ... are arranged perpendicularly on the lower side of the fence body 5. At the base end side of the posts 4, 4, ..., screw holes 41 are formed for screwing the posts 4 to a base 6 for mounting the safety fence provided on the packing box 2, and the safety fences 3a, 3b are attached to the packing box 2 by aligning the positions of the screw holes 41 and the screw holes 61 formed in the base 6 and screwing them together. The height dimension of the posts 4, 4, ... is set appropriately, but in this embodiment, the height of these posts 4, 4, ... is set to about 10 cm to tens of cm.

[0026] In this embodiment, the safety fences 3a and 3b are each provided with a fall prevention net 7 along the vehicle length direction (front-rear direction of the vehicle) B. The fall prevention net 7 prevents the luggage (not shown) placed in the work area WS from slipping through the gap formed between the cargo box 2 and the fence body 5 and falling off, and in this embodiment, it is composed of a rectangular wire mesh arranged to close the gap between the cargo box 2 and the fence body 5. The fall prevention net 7 is provided with a hook 71 for attaching a net used when covering the work area WS with a net or sheet. In the illustrated example, the fall prevention net 7 is arranged along the vehicle length direction B at both ends of the safety fences 3a and 3b in the vehicle width direction A, but the fall prevention net 7 may be provided along the vehicle width direction A at the end of the vehicle length direction B. The fall prevention net 7 may also be omitted.

[0027] In this embodiment, the safety fences 3a, 3b configured in this manner are provided with a hook attachment portion 8 for detachably engaging the hook 104 of a fall prevention device (safety belt) 100 (see Figure 3) worn by a worker performing work on the work area WS.

[0028] FIG. 3 shows an example of a fall prevention device 100. The illustrated fall prevention device 100 is a type of device called a waist belt type, and is mainly composed of a belt body 101 worn around the waist of a worker, a connecting belt 103 that is retractably attached to the belt body 101 via a winder 102, and a hook 104 attached to the tip of the connecting belt 103. When a worker works in a work area WS on a cargo box 2, the worker wears the fall prevention device 100 and attaches the hook 104 of the fall prevention device 100 to the hook attachment portion 8 of the safety fence 3. Note that the fall prevention device 100 used by a worker is not limited to a waist belt type fall prevention device as long as it is an device that includes the hook 104, and may be another type of fall prevention device such as a type called a harness type that fixes the worker's shoulders, chest, and base of the feet.

[0029] 1, a metal rod-shaped member 81 having one end connected to the post 4 and the other end connected to the fence body 5 is disposed on the inner corner side of the intersection of the post 4 and the fence body 5, so that the post 4, the fence body 5, and the rod-shaped member 81 form an attachment hole FH that can engage with the fall prevention hook 104. Therefore, the hook attachment portion 8 shown in this embodiment is formed below the fence body 5 without protruding to the inside of the safety fence 3 in a plan view, in other words, without protruding toward the working area WS side when viewed from the fence body 5.

[0030] In the refuse truck 1 thus configured, when a worker works within the working area WS on the packing box 2, the worker attaches the hook 104 of the fall prevention device 100 worn by the worker to the hook attachment part 8 (attachment hole FH) provided on the safety fence 3 and performs the work. As a result, even if the worker falls from the working area WS, the worker's fall (fall) is prevented by the connecting belt 103 of the fall prevention device 100, and the safety of the worker is ensured. In particular, the hook attachment part 8 shown in this embodiment does not slide as in conventional fall prevention equipment, and therefore the safety of the worker can be sufficiently ensured by the fall prevention device 100.

[0031] In addition, the hook attachment part 8 shown in this embodiment is attached so that the rod-shaped member 81 forming the hook attachment part 8 does not protrude inside the safety fence 3, so there is almost no risk of a worker moving around and working within the work area WS tripping over the hook attachment part 8. Therefore, it is possible to provide a fall prevention system with an extremely low risk of falling.

[0032] In the illustrated example, the hook mounting parts 8 are formed at the ends of the safety fences 3a and 3b, but the hook mounting parts 8 can also be formed at the intersections of the posts 4 and the fence body 5 at positions other than the ends of the safety fences 3a and 3b, as long as the intersections are where the posts 4 and the fence body 5 intersect. In relation to this, the number of hook mounting parts 8 formed on the safety fences 3a and 3b can be changed as appropriate. For example, it is possible to provide hook mounting parts 8 at all of the intersections of the posts 4 and the fence body 5, or to provide hook mounting parts only at some of the intersections. In other words, it is sufficient that the hook mounting parts 8 are formed in at least one or more places.

[0033] EMBODIMENT 2 Next, a second embodiment of the present invention will be described with reference to FIG. The garbage truck 1 shown in the second embodiment has a modified hook mounting portion 8 provided on the safety fence 3, and other configurations are the same as the garbage truck 1 shown in the first embodiment. Therefore, the following explanation will focus on the modified points.

[0034] In the garbage truck 1 shown in this embodiment, the safety fences 3a and 3b are provided with hook attachment parts 8 at corners where the fence body 5 is bent at a substantially right angle. Specifically, the hook attachment part 8 shown in this embodiment is provided at the inner corner of the intersection where the fence body 5a arranged to extend in the vehicle width direction A and the fence body 5b arranged to extend in the vehicle length direction B intersect, and a metal rod-shaped member 82 is arranged with one end connected to the fence body 5a arranged to extend in the vehicle width direction A and the other end connected to the fence body 5b arranged to extend in the vehicle length direction B, whereby the fence bodies 5a and 5b and the rod-shaped member 82 form an attachment hole FH that can engage with a hook 104 for preventing a fall.

[0035] The hook attachment portion 8 shown in this embodiment is disposed at an intersection where the fence body 5a, arranged with the rod-shaped member 82 extending in the vehicle width direction A, intersects with the fence body 5b, arranged extending in the vehicle length direction B, so that the hook attachment portion 8 can be formed, for example, at the four corners of the working space WS surrounded by the safety fences 3a, 3b. Note that, as in the above-described first embodiment, the hook attachment portion 8 shown in this embodiment only needs to be formed in at least one of the four corners.

[0036] In this way, the hook mounting portion 8 (rod-shaped member 82) shown in this embodiment is arranged inside the safety fences 3a, 3b, but the rod-shaped member 82 is arranged at the four corners (inner corners) of the approximately rectangular work area WS, and the vicinity of this is a position where workers rarely set foot during normal work in the work area WS, so the rod-shaped member 82 does not interfere with work.

[0037] Therefore, with the hook attachment part 8 shown in this embodiment, there is almost no risk of a worker who moves around while working in the work area WS tripping over the hook attachment part 8, making it possible to provide a fall prevention system with a low risk of falling. Moreover, as in the first embodiment, the hook attachment part 8 does not slide like conventional fall prevention systems, so the fall prevention device 100 can fully ensure the safety of the worker.

[0038] It should be noted that the above-described embodiments are merely preferred embodiments of the present invention, and the present invention is not limited to these, and various design modifications are possible within the scope of the present invention.

[0039] For example, in the above-described embodiment, a garbage truck 1 was used as an example of a vehicle having a cargo box, but the present invention can also be applied to vehicles other than garbage trucks as long as they are equipped with a cargo box 2 with a roof, such as special-purpose vehicles for purposes other than garbage collection, such as vending cars and tanker trucks, and even vehicles having cargo boxes other than special-purpose vehicles.

[0040] In the above-described embodiment, the hook attachment part 8 is provided at the intersection where the post 4 and the fence body 5 intersect and at the intersection where the fence body 5a and the fence body 5b intersect. However, for example, a substantially U-shaped metal member may be used as the rod-shaped member constituting the hook attachment part 8, and both ends of this metal member may be connected to the post 4 or the fence body 5 to form the hook attachment part 8. In other words, the hook attachment part 8 in the present invention may be provided on the post 4 and / or the fence body 5.

[0041] In the above-described embodiments, the hook mounting portion 8 is provided at the intersection of the post 4 and the fence body 5 (embodiment 1), and the hook mounting portion 8 is provided at the intersection of the fence body 5a and the fence body 5b (embodiment 2). However, it is of course possible to configure the hook mounting portion 8 to be provided at both the intersection of the post 4 and the fence body 5 and the intersection of the fence body 5a and the fence body 5b. It is also possible to form the hook mounting portion 8 only on the fence body 5b, for example. In that case, it is preferable to configure the hook mounting portion 8 formed on the fence body 5b so that it is not on the inside of the safety fence 3.

[0042] In the above embodiment, the working area WS is formed by using a pair of safety fences 3a, 3b each having a substantially U-shape in plan view. However, the working area WS can be formed by, for example, arranging a pair of safety fences 3 each having a substantially L-shape in plan view opposite each other, or by arranging a pair of safety fences 3 each having a substantially I-shape in plan view opposite each other on both sides in the vehicle width direction (left and right direction of the vehicle) or the vehicle length direction (front and rear direction of the vehicle). Furthermore, the working area WS can be formed by a single safety fence 3, that is, a safety fence having a substantially rectangular ring shape in plan view. In short, the shape and arrangement of the safety fence 3 intended to prevent falls from the working area WS can be appropriately changed, and the above-mentioned hook attachment portion 8 may be provided at least at one or more of these safety fences 3.

[0043] In the above embodiment, the ceiling surface (upper surface) of the packing box 2 is used as the work area WS, but a member for placing luggage on the packing box 2 (for example, a roof rack, etc.) may be provided on the packing box 2, and the safety fence 3 may be provided thereon. In short, as long as the safety fence 3 surrounding the work area WS is structured to have a hook mounting portion 8, a roof rack, etc. may be provided on the packing box 2. [Explanation of symbols]

[0044] 1 Refuse truck 2 packing boxes 3,3a,3b Safety fence 4 pillars 41 Screw hole 5 Fence body 6 Base 61 Screw hole 7 Fall prevention net 8 Hook attachment part 81, 82 Rod-shaped member 100 Fall arrest equipment 101 Belt body 103 Connecting Belt 104 Hook WS work area FH mounting hole

Claims

1. A vehicle having a cargo box with a ceiling, and a work area surrounded by a safety fence formed on the cargo box, The safety fence is composed of a plurality of posts that are erected on the ceiling surface of the packing box and a fence body supported by the posts, The posts and / or fences are provided with hook attachment sections for attaching and detaching hooks for fall prevention worn by workers working in the work area. A vehicle having a luggage box.

2. 2. The vehicle having a cargo box according to claim 1, wherein the hook attachment portion is attached so as not to protrude inside the safety fence.

3. The hook mounting portion is connected at one end to the fence body arranged to extend in the vehicle width direction and at the other end to the fence body arranged to extend in the vehicle length direction at an intersection where the fence body arranged to extend in the vehicle width direction and the fence body arranged to extend in the vehicle length direction intersect, thereby forming a mounting hole that can engage with the fall prevention hook. A vehicle having a luggage box according to claim 1.

4. The hook mounting portion is connected at one end to the support and at the other end to the fence at the intersection where the support and the fence intersect, thereby forming a mounting hole that can be engaged with the hook for preventing a fall. A vehicle having a luggage box according to claim 2.

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