Safety workbench and method for installing a workbench

Abstract

To safely perform a work with a simple configuration.SOLUTION: A safe workbench comprises: a workbench which has a gate panel hooking portion that can be hooked to a gate panel of a truck and which can store, at a rear side of the workbench, a workbench supporting tool supporting the workbench from a side face of the gate panel and a workbench supporting leg supporting the workbench from a ground surface in a folded state respectively; a ladder connecting the workbench with a ground surface; and a fence attached so as to surround a peripheral edge of the workbench.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] Embodiments of the present invention relate to a safety workbench and a workbench installation method.

Background Art

[0002] In land freight transportation, among various accidents related to cargo handling operations, falls are the most frequent (from Table 4 (Analysis of the number of injured and killed in land freight transportation) of "Analysis of Factors Causing Industrial Accidents" by the Ministry of Health, Labour and Welfare (land freight transportation industry, port cargo handling industry, forestry industry in 2015)).

[0003] As an example of a working environment where an accident may occur, when unloading a large amount of cargo piled up on a truck bed or removing a rainproof sheet, an operator may work while riding on the awning of the truck. Also, when unloading a heavy object using a crane, a step ladder may be installed on the truck bed, and after the operation of hanging the load is completed, the step ladder may be lowered from the truck and the loading and unloading of the cargo may be carried out.

[0004] Such work not only lacks safety but also has poor work efficiency. When using a step ladder on the truck bed, it is necessary to avoid the location for installing the step ladder when loading the cargo, so the entire truck bed cannot be used for loading, and in some cases, an additional truck may be required although only one truck should be sufficient.

[0005] As an example of a technology for improving work efficiency, for example, a mechanism that is fastened and fixed to the awning of a truck and has a staircase or steps for facilitating cargo handling operations is known.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] In the prior art, although it is possible to facilitate the handling work by providing stairs or steps, ensuring a sufficient working space for safely performing the handling work has not been considered. For example, when an operator performs work such as hanging a heavy object at a high place, it is difficult to surely prevent falling. Further, in the prior art, if an attempt is made to secure a sufficient working space, the entire apparatus becomes large-scale, and it becomes difficult to carry, assemble, and install.

[0008] The problem to be solved by the invention is to provide a safety workbench and a workbench installation method that can perform work safely with a simple configuration.

Means for Solving the Problem

[0009] The safety workbench according to the embodiment is a workbench having an awning hook portion that can be hooked on the awning of a truck, and supports the workbench from the side of the awning Extensible a workbench support tool and supports the workbench from the ground Extensible a workbench support leg both a workbench that can store each in a folded state on the back side of the workbench, a ladder that connects the workbench and the ground, and To prevent the worker from falling or tumbling from the workbench a fence attached so as to surround the periphery of the workbench.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2A

Figure 2B

Figure 2C

Figure 3

Figure 4A

Figure 4B

Figure 5

Figure 6

Figure 7

Embodiments for Carrying Out the Invention

[0011] Hereinafter, embodiments will be described with reference to the drawings.

[0012] <Configuration> FIG. 1 is a diagram showing an example of the configuration of a safety workbench according to an embodiment. Further, FIG. 2A is a diagram showing an example of a truck provided with an aori to which the safety workbench shown in FIG. 1 is attached. Further, FIG. 2B is a diagram showing an example of the state in which the safety workbench shown in FIG. 1 is attached to the aori 21 of the truck shown in FIG. 2A. Further, FIG. 2C is a diagram showing an enlarged view of the state in which the rotating surfaces of the rollers of a plurality of roller mechanisms provided in the safety workbench shown in FIG. 1 are in contact with the upper surface, inner surface, and outer surface of the aori 21 of the truck shown in FIG. 2A when the safety workbench is attached to the aori 21 of the truck.

[0013] The safety workbench shown in FIGS. 1 and 2B includes a fall prevention fence 1 (hereinafter referred to as "fence 1"), a fence fixture 2, a chain 3, a workbench 4, a plurality of pneumatic upper surface roller mechanisms 5 (six pneumatic upper surface roller mechanisms 5 in the example of FIG. 1), a plurality of pneumatic inner side surface roller mechanisms 6 (six pneumatic inner side surface roller mechanisms in the example of FIG. 1), a pneumatic hook portion 7, a workbench support 8, a plurality of workbench support legs 9 (two workbench support legs 9 in the example of FIG. 1), a ladder 10, and the like. Among these members, the pneumatic hook portion 7 is configured as a part of the workbench 4 and is attached in a form that can be hooked on the pneumatic 21 of the truck 20 shown in FIG. 2A. For the materials of each member, lightweight metals such as aluminum are used, for example, to facilitate carrying.

[0014] The fence 1 is attached so as to surround the periphery of the workbench 4 to prevent the operator from falling or tumbling from the workbench 4, and is composed of a combination of members such as a plurality of struts.

[0015] When installing the fence 1 on the workbench 4, the bottom of each individual strut constituting the fence 1 is fitted into the fence fitting portion 1a. An example of the structure of the fence fitting portion 1a is shown in FIG. 3. In the example of FIG. 3, an edge portion 4a surrounding the periphery of the workbench 4 is provided, and the fence fitting portion 1a is arranged so as to be in contact with the edge portion 4a. The bottom of the strut of the fence 1 is fitted into this fence fitting portion 1a, and a lock pin 1b is passed through holes previously opened in the fence fitting portion 1a, the bottom of the strut of the fence 1, and the edge portion 4a, respectively, and fixed. However, what is shown in FIG. 3 is only an example, and the structure of the fence fitting portion 1a is not limited to this example. Also, the edge portion 4a contributes to stabilizing the fixing of the lock pin 1b, but is not necessarily required and there is no problem even if it is absent.

[0016] The fence fixture 2 combines and fixes a plurality of members constituting the fence 1 and is realized by a metal joint or the like. By using the fence fixture 2, the fence 1 is fixed and the wobbling is suppressed, enhancing safety.

[0017] The chain 3 is detachably connected between two spaced members among the plurality of members constituting the fence 1 (near the entrance from the ladder 10 to the workbench 4).

[0018] The workbench 4 has an ear hook portion 7 that can be hooked on the ear 21 of the truck 20 shown in Fig. 2A, and includes a workbench support 8 for supporting the workbench 4 from the side of the ear 21 and two workbench support legs 9 for supporting the workbench 4 from the ground.

[0019] This workbench 4 can be attached to the ear 21 simply by hooking the ear hook portion 7 on the ear 21. When an operator gets on the workbench 4, the load is distributed to the workbench support 8 and the two workbench support legs 9, and the workbench 4 is supported by these. The ear hook portion 7, the workbench support 8, and the workbench support legs 9 are provided on the workbench 4 in advance and are basically not removed from the workbench 4 whether in use or not.

[0020] This workbench 4 can fold the workbench support 8 and the workbench support legs 9 respectively from the state shown in Fig. 1 and store them on the back side of the workbench 4, or pull them out from the back side of the workbench 4 and deploy them to the state shown in Fig. 1. An example of the structure of the workbench 4 with the workbench support 8 and the workbench support legs 9 folded is shown in Fig. 4A. Also, an example of the structure of the workbench 4 turned over is shown in Fig. 4B.

[0021] As shown in Fig. 4A, the workbench 4 has a plurality of fence insertion parts 1a and ladder insertion parts 10b. The fence insertion part 1a has a mechanism (for example, a locking mechanism for locking) for fixing the bottom part of the column of the fence 1 to the workbench 4 so that the bottom part of the column does not come out when the bottom part of the column of the fence 1 is inserted. Further, the ladder insertion part 10b has a mechanism (for example, a locking mechanism for locking) for fixing the ladder hooking part 10a, which is a part of the ladder 10, to the workbench 4 so that the ladder hooking part 10a does not come out when the ladder hooking part 10a is inserted. For these mechanisms, the structure shown in Fig. 3 may be adopted, or other structures may be adopted.

[0022] Further, as shown in Fig. 4B, the workbench 4 is configured to be able to fold and store a plurality of arms 8a, arm stoppers 8b (not shown in Fig. 4B), arm fixtures 8c, an outer side surface roller mechanism 8d of the aoli, and roller fixing rods 8e that constitute the workbench support 8. Details of the arms 8a, arm stoppers 8b, arm fixtures 8c, the outer side surface roller mechanism 8d of the aoli, and roller fixing rods 8e will be described later. Furthermore, the workbench 4 is also configured to be able to fold and store the workbench support legs 9. In addition, the workbench 4 is also provided with a support leg fixture 11 for restricting the opening degree when the workbench support legs 9 are opened.

[0023] The workbench 4 with the workbench support 8 and the workbench support legs 9 folded as shown in Figs. 4A and 4B has a flat and compact structure and is also lightweight, so it can be easily carried by one or two people, and only a small storage space is required for storage. The workbench 4 can be placed, for example, at the placement location A in front of the loading platform of the truck 20 shown in Fig. 2A or at the placement location B below the loading platform, and it does not take up much space even when mixed with other luggage.

[0024] When the workbench 4 is placed at the placement location A, when taking out the workbench 4, by removing either one of the aoris 21 on both sides of the truck 20, the workbench 4 can be taken out relatively easily. In addition, in Fig. 2A, the illustration of one of the two aoris 21 on both sides of the truck 20 is omitted. When the workbench 4 is placed at the placement location B, the workbench 4 can be taken out without removing the aori 21. In either case, it is not necessary to place the workbench 4 inside the vehicle.

[0025] In addition, as shown in Figs. 4A and 4B, the workbench 4 with the workbench support 8 and the workbench support leg 9 folded can be put into one case together with the above-mentioned fence 1, fence fixture 2, chain 3, and ladder 10, and the case can be placed at the placement location A or the placement location B. Alternatively, the fence 1, fence fixture 2, chain 3, and ladder 10 can be put into a separate case and placed at the placement location A or the placement location B, or at another location.

[0026] As shown in Fig. 2B, the workbench 4 assembled with the fence 1 and the chain 3 installed has a work space wide enough for work, and also has sufficient height, so it is easy to perform various tasks related to cargo handling, and tasks such as hanging objects at high places can be performed safely. In addition, since the fence 1 and the chain 3 are provided around the workbench 4, it is easy for the operator to detect danger when a part of the body hits the fence 1 or the chain 3, and falling and tumbling can be prevented. Also, since there is a fence 1 around the workbench 4, when performing work using a fall arrest device, the hook at the end of the rope connected to the safety belt worn by the operator can be hooked on the fence 1, and falling and tumbling can be more reliably prevented.

[0027] As shown in Fig. 2C, the flying fish upper surface roller mechanism 5 is pre-attached to the inner upper surface of the flying fish hooking portion 7, and includes a roller 5a whose rotating surface abuts on the upper surface of the flying fish 21, a roller support 5b that supports the rotating shaft of the roller 5a, and a roller fixture 5c that fixes the roller support 5b to the inner upper surface of the flying fish hooking portion 7. By rotating the roller 5a on the upper surface of the flying fish 21, it is possible to move and adjust the position of the flying fish hooking portion 7 and the flying fish 21 of the workbench 4 in the longitudinal direction.

[0028] As shown in Fig. 2C, the flying fish inner side surface roller mechanism 6 is pre-attached to the inner side surface of the flying fish hooking portion 7, and includes a roller 6a whose rotating surface abuts on the inner side surface of the flying fish 21, a roller support 6b that supports the rotating shaft of the roller 6a, and a roller fixture 6c that fixes the roller support 6b to the inner side surface of the flying fish hooking portion 7. By rotating the roller 6a, it is possible to move and adjust the position of the flying fish hooking portion 7 and the flying fish 21 of the workbench 4 in the longitudinal direction.

[0029] The flying fish hooking portion 7 is provided with the flying fish upper surface roller mechanism 5 on the inner upper surface and the flying fish inner side surface roller mechanism 6 on the inner side surface. By rotating each roller of these two types of roller mechanisms, it is configured to be able to move to an arbitrary position in the longitudinal direction of the flying fish 21 together with the workbench 4.

[0030] The workbench support 8 supports the workbench 4 from the side of the flying fish 21 to make the workbench 4 horizontal, and can be folded and stored on the back side of the workbench 4.

[0031] This workbench support 8 includes a plurality of arms 8a (three arms 8a in the example of FIG. 2B) with one end being pullable downward and the other end being fixed to the workbench support 8, a plurality of arm stoppers 8b (three arm stoppers 8b in the example of FIG. 2B) for restricting the range (the opening degree of the arm 8a) in which one end of each of the plurality of arms 8a is pulled downward, one end of each of the plurality of arms 8a being fixed by a plurality of arm fixtures 8c (three arm fixtures 8c in the example of FIG. 2B), and a plurality of outer side surface roller mechanisms 8d of the auger 8d (six outer side surface roller mechanisms 8d of the auger in the example of FIG. 2B) having rollers whose rotating surfaces abut against the outer side surface of the auger 21 are attached, and one roller fixing rod 8e. The outer side surface roller mechanism 8d of the auger has the same structure as the above-described upper surface roller mechanism 5 of the auger and the inner side surface roller mechanism 6 of the auger. That is, as shown in FIG. 2C, the outer side surface roller mechanism 8d of the auger is pre-attached to the side surface of the roller fixing rod 8e, and includes a roller 8f whose rotating surface abuts against the outer side surface of the auger 21, a roller support 8g for supporting the rotating shaft of the roller 8f, and a roller fixture 8h for fixing the roller support 8g to the side surface of the roller fixing rod 8e.

[0032] In the state where the workbench support 8 configured as described above is folded and stored on the back side of the workbench 4, by simply pulling down the roller fixing rod 8e, each roller 8f of the plurality of outer side surface roller mechanisms 8d of the auger can be brought into contact with the side surface of the auger 21 as shown in FIGS. 2B and 2C, and the workbench support 8 can be deployed in a short time. Note that each arm 8a may be provided with a mechanism (for example, a telescopic structure mechanism) that enables the expansion and contraction of the arm 8a, and may have a structure that supports the workbench 4 with the length of the arm 8a set to an arbitrary length.

[0033] The two workbench support legs 9 support the workbench 4 from the ground and can withstand the load from the workbench 4 when an operator gets on it, and can be folded and stored on the back side of the workbench 4.

[0034] This workbench support leg 9 has a mechanism (for example, a telescopic structure mechanism) that enables the expansion and contraction of the workbench support leg 9, and is configured to be able to support the workbench support 8 with the length of the workbench support leg 9 set to an arbitrary length. Therefore, even if the height of the aoli 21 from the ground varies depending on the type of the truck 20, the length of the workbench support leg 9 can be adjusted to an appropriate length, and the workbench 4 can be reliably supported from the ground.

[0035] Also, since two workbench support legs 9 support the workbench 4, even if the workbench support 8 fails to support the workbench 4 due to a malfunction, the state of supporting the workbench 4 by the two workbench support legs 9 can be maintained. Even when an operator is working on the workbench 4, such as hanging a ball, the operator can continue to work safely without falling.

[0036] The ladder 10 connects the ground and the workbench 4, enabling the operator to move back and forth between the ground and the workbench 4.

[0037] This ladder 10 has a mechanism (for example, a telescopic structure mechanism) that enables the expansion and contraction of the ladder 10, and is configured to be able to set the length of the ladder 10 to an arbitrary length. Therefore, even if the height of the aoli 21 from the ground varies depending on the type of the truck 20, the length of the ladder 10 can be adjusted to an appropriate length.

[0038] Also, the ladder 10 has a ladder hook portion 10a for fixing the ladder 10 to the workbench 4. This ladder hook portion 10a is inserted into the ladder insertion portion 10b of the workbench 4 to fix the ladder 10 to the workbench 4. Therefore, the ladder 10 does not come off the workbench 4, and the operator can safely climb up and down the ladder 10.

[0039] On the upper surface and both side surfaces of the above-described aori 21, rollers provided in the aori upper surface roller mechanism 5, the aori inner side surface roller mechanism 6, and the aori outer side surface roller mechanism 8d respectively come into contact. Therefore, before the operator gets on the workbench 4, the position of the workbench 4 (the position in the longitudinal direction of the aori 21) can be freely adjusted.

[0040] Also, when the operator is on the workbench 4, due to the load, frictional resistance occurs at the contact surfaces between the rollers provided in the aori upper surface roller mechanism 5, the aori inner side surface roller mechanism 6, and the aori outer side surface roller mechanism 8d and the aori 21, and frictional resistance occurs at the contact surface between the workbench support legs 9 and the ground. Therefore, the aori hooking portion 7 in the longitudinal direction of the aori 21 and the lateral movement of the workbench 4 are blocked.

[0041] However, for even greater safety, the aori upper surface roller mechanism 5, the aori inner side surface roller mechanism 6, and the aori outer side surface roller mechanism 8d may further include a roller stopper (stopper) for blocking (locking) and releasing the rotational movement of each roller. By using the roller stopper, for example, even in a situation where the ground is inclined, lateral slipping of the aori hooking portion 7 and the workbench 4 is blocked, so that the operator can work with confidence.

[0042] <Procedure for installing a safety workbench> Next, with reference to FIGS. 2A, 5, and 6, the procedure for installing a safety workbench will be described.

[0043] FIG. 5 is a conceptual diagram showing an example of the procedure for installing the safety workbench shown in FIG. 1, and FIG. 6 is a flowchart showing an example of the procedure for installing the safety workbench.

[0044] First, as shown at T1 in FIG. 2A, a case or the like placed at a predetermined position on the loading platform of the truck 20 is taken out, and from it, the workbench 4, the fence 1, the fence fixture 2, the chain 3, and the ladder 10 are taken out (step S11 in FIG. 6).

[0045] Next, as shown at T2 in FIG. 5, the workbench 4 is attached to the eel 21 via the eel hooking portion 7 (step S12 in FIG. 6).

[0046] In this case, the workbench 4 can be easily attached to the eel 21 by simply hooking the eel hooking portion 7 provided on the workbench 4 onto the eel 21 as shown in FIGS. 2B and 2C.

[0047] Next, as shown at T3 in FIG. 5, the workbench support 8 that is folded on the back side of the workbench 4 is deployed (step S13 in FIG. 6).

[0048] Specifically, by pulling down the roller fixing rod 8e of the workbench support 8, the folded arms 8a and arm stoppers 8b extend, and the rollers of the outer side surface roller mechanism 8d of the eel abut against the side surface of the eel 21. Thereby, the workbench support 8 can support the workbench 4 from the side surface of the eel 21. Also, when it is necessary to adjust the position of the workbench 4, if the workbench 4 is pushed in the longitudinal direction of the eel 21, each roller that is in contact with the eel 21 of the upper surface roller mechanism 5 of the eel, the inner side surface roller mechanism 6 of the eel, and the outer side surface roller mechanism 8d of the eel rotates, and the workbench 4 moves in the longitudinal direction of the eel 21 together with the eel hooking portion 7, so that the position of the workbench 4 can be easily adjusted.

[0049] Next, as shown at T4 in FIG. 5, the workbench support leg 9 that is folded on the back side of the workbench 4 is deployed (step S14 in FIG. 6).

[0050] Specifically, since the workbench support leg 9 is in a state of being contracted by a mechanism such as a telescopic structure, after pulling out the end of the workbench support leg 9 downward, the workbench support leg 9 is extended, and the length is set so that the workbench support leg 9 can reliably support the workbench 4 from the ground.

[0051] Next, as shown at T5 in FIG. 5, the ladder 10 is attached to the workbench 4 (step S15 in FIG. 6).

[0052] Specifically, the ladder hooking part 10a of the ladder 10 is inserted into the ladder fitting part 10b of the workbench 4 and fixed by a locking mechanism or the like. Further, since the ladder 10 is contracted by a mechanism such as a telescopic structure, after the ladder 10 is hung on the workbench 4, the length is set so that the bottom of the ladder 10 touches the ground.

[0053] Next, as shown at T6 in FIG. 5, the fence 1 is attached to the workbench 4 (step S16 in FIG. 6).

[0054] Specifically, the bottom of each pillar constituting the fence 1 is inserted into the fence fitting part 1a of the workbench 4 and fixed by a locking mechanism or the like so that the pillar does not come out. Further, the fence fixture 2 is used to connect and fix a plurality of members constituting the fence 1. Also, a detachable chain 3 is provided between two spaced members among the plurality of members constituting the fence 1 (near the entrance from the ladder 10 to the workbench 4).

[0055] <Procedure for disassembling the safety workbench> Next, with reference to FIG. 7, the procedure for disassembling the safety workbench will be described.

[0056] FIG. 7 is a flowchart showing an example of the procedure for disassembling the safety workbench.

[0057] First, the fence 1 is removed from the workbench 4 (step S21 in FIG. 7).

[0058] In this case, the fence 1 may be removed with the fence fixture 2 and the chain 3 attached to the fence 1, or alternatively, the chain 3 may be removed first and then the fence 1 with the fence fixture 2 attached may be removed. The removal of the fence fixture 2 may be performed before or after removing the fence 1 from the workbench 4. Also, before removing the fence 1 from the workbench 4, the bottom of each pillar constituting the fence 1 is inserted into the fence fitting part 1a and fixed by a locking mechanism or the like, so the fixed state is released and then the pillar is pulled out.

[0059] Next, the ladder 10 is removed from the workbench 4 (step S22 in FIG. 7).

[0060] Before removing the ladder 10 from the workbench 4, since the ladder hook portion 10a of the ladder 10 is fitted into the ladder fitting portion 10b and fixed by a locking mechanism or the like, the ladder 10 is removed after releasing the fixed state. Also, since the ladder 10 in the state of being hung on the workbench 4 is extended by a mechanism such as a telescopic structure, after removing the ladder 10 or before removing the ladder 10, it is contracted so that the length becomes shorter.

[0061] Next, the workbench support leg 9 is folded in a contracted state and stored on the back side of the workbench 4 (step S23 in FIG. 7).

[0062] Since the workbench support leg 9 supporting the workbench 4 is extended by a mechanism such as a telescopic structure, when storing it on the back side of the workbench 4, it is contracted so that the length becomes shorter and then folded toward the workbench 4 side.

[0063] Next, the workbench support 8 is folded and stored on the back side of the workbench 4 (step S24 in FIG. 7).

[0064] When the arm 8a is extended by a mechanism such as a telescopic structure, the length of the arm 8a is contracted so that it becomes shorter. Then, the roller fixing bar 8e is raised toward the workbench 4 side. As a result, the arm stopper 8b is folded, and the entire workbench support 8 is stored on the back side of the workbench 4.

[0065] Next, the workbench 4 is removed from the octopus 21 (step S25 in FIG. 7).

[0066] In this case, by simply lifting the octopus hook portion 7 above the octopus 21, the workbench 4 can be easily removed from the octopus 21.

[0067] The workbench 4 removed from the squid 21, the already removed fence 1, fence fixture 2, chain 3, and ladder 10 are stored in a case or the like and then placed at a predetermined position on the loading platform of the truck 20 shown in, for example, FIG. 2A (step S26 in FIG. 7).

[0068] <Effects of the Embodiment> According to the embodiment, when the workbench 4 is installed, a work space with a sufficient area for performing work is secured, and the height is also sufficient. Therefore, various operations related to cargo handling can be easily performed, and operations such as hanging objects at high places can be performed safely. In addition, since the fence 1 and the chain 3 are provided around the workbench 4, it is easy for the operator to detect danger when a part of the body touches the fence 1 or the chain 3, and falling and tumbling can be prevented. Further, since there is a fence 1 around the workbench 4, when performing work using a fall prevention device, the hook at the tip of the rope connected to the safety belt worn by the operator can be hung on the fence 1, and falling and tumbling can be more reliably prevented.

[0069] Further, according to the embodiment, the workbench 4 can be attached to the squid 21 simply by hooking the squid hooking portion 7 on the squid 21. Furthermore, the workbench 4 can be easily removed from the squid 21 by simply lifting the squid hooking portion 7 above the squid 21.

[0070] Also, according to the embodiment, since the rollers provided in the squid upper surface roller mechanism 5, the squid inner side surface roller mechanism 6, and the squid outer side surface roller mechanism 8d respectively contact the upper surface and both side surfaces of the squid 21, the position of the workbench 4 (the position in the longitudinal direction of the squid 21) can be freely adjusted before the operator gets on the workbench 4.

[0071] Further, according to the embodiment, when the workbench support 8 is folded and stored on the back side of the workbench 4, by simply pulling down the roller fixing rod 8e, each roller of the plurality of squid outer side surface roller mechanisms 8d can be brought into contact with the side surface of the squid 21, and the workbench support 8 can be deployed in a short time.

[0072] Further, according to the embodiment, the workbench support leg 9 has a mechanism that enables the telescoping of the workbench support leg 9, and is configured to be able to support the workbench support 8 with the length of the workbench support leg 9 set to an arbitrary length. Therefore, even if the height of the aori 21 from the ground varies depending on the type of the truck 20, the length of the workbench support leg 9 can be adjusted to an appropriate length, and the workbench 4 can be reliably supported from the ground. Also, since two workbench support legs 9 support the workbench 4, even if the workbench support 8 fails to support the workbench 4 due to a malfunction, the state of supporting the workbench 4 by the two workbench support legs 9 can be maintained. Even when an operator is working on the workbench 4, such as hanging a ball, the operator can continue to work safely without falling.

[0073] Further, according to the embodiment, the ladder 10 has a mechanism that enables the telescoping of the ladder 10, and is configured to be able to set the length of the ladder 10 to an arbitrary length. Therefore, even if the height of the aori 21 from the ground varies depending on the type of the truck 20, the length of the ladder 10 can be adjusted to an appropriate length.

[0074] Further, according to the embodiment, the workbench 4 can fold the workbench support 8 and the workbench support legs 9 respectively and store them on the back side of the workbench 4, or pull them out from the back side of the workbench 4 and deploy them, so that carrying and installation become easy.

[0075] Further, according to the embodiment, the workbench 4 with the workbench support 8 and the workbench support legs 9 folded has a flat and compact structure and is also lightweight. Therefore, it can be easily carried by one or two people, and only a small storage space is required for storage. Such a workbench 4 can be placed at the placement location A in front of the cargo bed of the truck 20 or the placement location B under the cargo bed, and even if it is mixed with other goods, it does not take up much space.

[0076] As described in detail above, according to the embodiment, work can be safely performed with a simple configuration.

[0077] Although some embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalent scope thereof.

Explanation of Reference Numerals

[0078] 1... Fall and fall prevention fence, 1a... Fence insertion part, 1b... Lock pin, 2... Fence fixture, 3... Chain, 4... Workbench, 4a... Edge part, 5... Anemone upper surface roller mechanism, 5a... Roller, 5b... Roller support, 5c... Roller fixture, 6... Anemone inner side surface roller mechanism, 6a... Roller, 6b... Roller support, 6c... Roller fixture, 7... Anemone hook part, 8... Workbench support, 8a... Arm, 8b... Arm stopper, 8c... Arm fixture, 8d... Anemone outer side surface roller mechanism, 8e... Roller fixing bar, 8f... Roller, 8g... Roller support, 8h... Roller fixture, 9... Workbench support leg, 10... Ladder, 10a... Ladder hook part, 10b... Ladder insertion part, 11... Support leg fixture, 20... Truck, 21... Anemone.

Claims

1. A workbench having an ory hook portion that can be hooked on the ory of a truck, the workbench support tool that can support the workbench from the side of the ory and the workbench support leg that can support the workbench from the ground are both retractable and can be stored on the back side of the workbench in a folded state, a workbench, A ladder connecting the workbench and the ground, A fence attached so as to surround the periphery of the workbench to prevent the worker from falling or slipping from the workbench Comprising a safety workbench.

2. The ory hook portion, Comprises an ory upper surface roller mechanism having a first roller whose rotating surface abuts on the upper surface of the ory, and is configured such that the ory hook portion can move to an arbitrary position in the longitudinal direction of the ory together with the workbench by the rotation of the first roller, The safety workbench according to claim 1.

3. The ory hook portion, Further comprises an ory inner side surface roller mechanism having a second roller whose rotating surface abuts on the inner side surface of the ory, The ory hook portion is configured to be movable to an arbitrary position in the longitudinal direction of the ory together with the workbench by the rotation of the first roller and the second roller, The safety workbench according to claim 2.

4. The workbench support tool, A plurality of arms with one end being pullable downward and the other end being fixed to the workbench support tool, A plurality of arm stoppers that limit the range in which one end of each of the plurality of arms is pulled downward, A roller fixing rod to which one end of each of the plurality of arms is fixed by a plurality of arm fixing tools and on which a plurality of ory outer side surface roller mechanisms having rollers whose rotating surfaces abut on the outer side surface of the ory are attached Including, The safety workbench according to any one of claims 1 to 3.

5. The workbench support leg, Has a mechanism that enables the telescoping of the workbench support leg and is configured to be able to support the workbench with the length of the workbench support leg set to an arbitrary length, The safety workbench according to any one of claims 1 to 4.

6. The ladder, Has a mechanism that enables the telescoping of the ladder and is configured to be able to set the length of the ladder to an arbitrary length, The safety workbench according to any one of claims 1 to 5.

7. The workbench, Is provided with a ladder fitting portion into which a part of the ladder is fitted, The fitting part of the ladder has a mechanism for fixing a part of the ladder to the workbench so that the part of the ladder does not come out when a part of the ladder is fitted in it. The safety workbench according to any one of claims 1 to 6.

8. The workbench is provided with a fence fitting part into which a part of the fence is fitted. The fence fitting part has a mechanism for fixing a part of the fence to the workbench so that the part of the fence does not come out when a part of the fence is fitted in it. The safety workbench according to any one of claims 1 to 7.

9. It further includes a fence fixture for connecting and fixing a plurality of members constituting the fence. The safety workbench according to any one of claims 1 to 8.

10. It further includes a chain that is detachably connected between two separated members among the plurality of members constituting the fence. The safety workbench according to any one of claims 1 to 9.

11. A workbench having a hook part that can be hooked on the winch of a truck, removing the workbench from a predetermined placement location of the truck, with both a telescopic workbench support for supporting the workbench from the side of the winch and a telescopic workbench support leg for supporting the workbench from the ground being stored on the back side of the workbench in a folded state. Attaching the workbench to the winch by hooking the hook part on the winch. Deploying the workbench support so that the workbench support supports the workbench from the side of the winch. Deploying the workbench support leg so that the workbench support leg supports the workbench from the ground. Attaching a ladder connecting the workbench and the ground. Attaching a fence surrounding the periphery of the workbench to prevent the operator from falling or tumbling from the workbench including a workbench installation method.

Images