JP2022157980A - Cargo handling carriage for truck - Google Patents

Abstract

To improve workability of operators on the stage of a cargo handling carriage.SOLUTION: A cargo handling carriage 10 for trucks has a handling carriage body 36 which is provided with a base platform 15, a working stage 20 fixed to the vertical front and rear poles, safety handrails 33, 34 attached to handrail pole parts 23a, 24a, and ladder 31, 32 for operators to climb up and down between the working stage 20 and the ground, in which a hanging frame body 40 having vertical support bars 41, 42 and an upper end connecting bar members 43 projecting upward from the working stage 20 and attached to the handling carriage body 36 is provided on the handling carriage body 36, and a safety block around which a wire rope to be worn by operators is attached to the hanging frame body 40.SELECTED DRAWING: Figure 1

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cargo handling vehicle for trucks used for loading and unloading cargo on and off the platform of trucks.

Cargo-handling work of trucks includes loading work of loading cargo onto a bed and tying the loaded cargo with a rope, and loading and unloading work of untying the tied cargo and unloading cargo from the bed. In such cargo handling work, in order to ensure the safety of the cargo handling work, workers carry out the cargo handling work while standing on a workbench placed on the side of the truck, or move between the workbench and the cargo bed. It is necessary to

As a working vehicle used for truck cargo handling work, one described in Patent Document 1 has been developed. This work trolley comprises a base on which traveling wheels are provided and which has a front horizontal bar on the truck side and a back side horizontal support parallel to this, and supports provided at both ends of each horizontal bar. have. A work stage is attached to the support, and a ladder is provided on the support for a worker to get on and off between the work stage and the outside.

JP 2019-167778 A

This cargo handling platform is effective for workers to climb up and down between the bed of the truck and the ground. You can move from the stage to the loading platform. On the other hand, when returning from the loading platform to the ground, it is possible to transfer from the loading platform to the working stage and use the ladder from the working stage to get down to the ground.

Cargo handling trolleys are used not only for workers to move back and forth between the loading platform and the ground via the working stage, but also for traveling on the working stage to move between workers on the loading platform. There is work to deliver luggage in. When performing such work, the worker on the work stage always stands on the work stage and moves thereon to perform the work.

The above-mentioned conventional cargo handling cart is not designed for workers to travel on the work stage to deliver cargo, and workers can work on the work stage without wearing safety belts. will do. For this reason, the worker has to work carefully on the work stage while feeling uneasy about falling, and there is a problem that the workability on the work stage is poor.

SUMMARY OF THE INVENTION An object of the present invention is to improve workability of a worker on a work stage of a cargo handling vehicle.

The cargo handling vehicle for trucks of the present invention is a cargo handling vehicle for trucks which is arranged adjacent to the loading platform of the truck and used when performing cargo handling work on the truck, and which is arranged horizontally on the front side of the truck. a base having a bar and a back side horizontal bar extending parallel to the front side horizontal bar, and on which traveling wheels are provided; and vertical front side struts attached to both ends of the front side horizontal bar; and a work stage fixed to vertical back support posts attached to both ends of the back horizontal bar and arranged above the base; and one of the back support posts above the work stage. a safety handrail attached to a handrail support section formed by parts; and a ladder attached between the front support support and the rear support support for an operator to ascend and descend between the work stage and the ground. and two vertical support rods projecting upward from the working stage and attached to the work truck body, and an upper end connection attached to the upper end of the vertical support rod. A suspension frame body provided with a bar is provided on the work vehicle main body, and a safety block around which a wire rope to be worn by a worker is wound is attached to the suspension frame body.

A work stage provided on the work trolley body can be safely climbed up and down using a ladder. A safety block can be attached to the suspension frame provided on the work trolley body. Since falling from the loading stage is prevented, the worker can efficiently load and unload cargo without worrying about falling, and workability of cargo handling work can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS It is the perspective view which looked at the cargo-handling work vehicle for truck|trucks which is one embodiment from the front side. FIG. 4 is a front view of the cargo handling vehicle with a worker on the work stage; FIG. 4 is a side view showing a state in which a cargo handling vehicle is arranged on the bed of a truck and cargo handling work is being performed. It is a rear view of the cargo-handling vehicle for trucks which is other embodiment. FIG. 5 is a side view showing a state in which the cargo handling vehicle shown in FIG. 4 is arranged on the bed of a truck and cargo handling work is being performed; FIG. 11 is a side view showing a modification of traveling wheels provided on the work vehicle main body;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In each drawing, the same reference numerals are given to the members having commonality among the members constituting the cargo handling vehicle for trucks.

The cargo handling vehicle 10 shown in FIGS. 1 to 3 has a front horizontal bar 11 and a rear horizontal bar 12 extending parallel thereto. are connected by connecting rods 13, 14 attached to the respective ends. A rectangular base 15 is formed by four bars, that is, a front horizontal bar 11, a rear horizontal bar 12, and connecting bars 13 and 14 shorter than these bars. These bars are formed by metal square pipes having a square cross section. Supporting leg members 16 extending in the width direction of the base 15, that is, in the front-rear direction are attached to both ends of the base 15, and casters 18 having running wheels 17 are attached to both ends of the supporting leg members 16. It is Since the cargo handling vehicle 10 has casters 18, the cargo handling vehicle 10 can be easily moved between the cargo bed of the truck as a cargo handling place and the storage place of the cargo handling vehicle 10.例文帳に追加

Vertical front supports 21 and 22 are attached to both ends of the front horizontal bar 11 . Rear-side support columns 23 and 24 are attached to both ends of the rear-side horizontal bar 12 . Each support is formed of a metal round pipe with a circular cross section, and the work stage 20 is attached to each support. The working stage 20 has a quadrilateral frame member 25 and an expanded metal 26 attached to the frame member 25 as a scaffold board. The working stage 20 is arranged above the base 15, and its height is set to the position of the bed of the truck. However, the height position of the work stage 20 may be set at a position close to the height of the upper surface of the fan plate of the truck in the upright state.

Three ladder members 31a are fixed between the front-side support 21 and the rear-side support 23, and these ladder members 31a support the lifting ladder 31 from one end of the base 15 and one end of the working stage 20. is formed between Three ladder members 32 a are fixed between the front-side support 22 and the rear-side support 24 , and these ladder members 32 a connect the ladders 32 for lifting and lowering to the other end of the base and the other end of the work stage 20 . It is formed between the The upper part of the rear-side post 23 forms a handrail post part 23a, and the upper part of the rear-side post 24 forms a handrail post part 24a. Two upper and lower safety handrails 33, 34 are attached between the two handrail post portions 23a, 24a. The safety handrails 33, 34 are made of metal and have a circular cross section, like the four posts. It is made up of pipes. Further, a baseboard 35 is attached between the handrail support sections 23a and 24a so as to abut against the work stage 20. As shown in FIG.

In this manner, the work trolley main body 36 is composed of the front side struts 21 and 22, the rear side struts 23 and 24, the working stage 20, and the safety handrails 33 and 34 which are attached to the base 15. As shown in FIG.

As shown in FIG. 3, when the work trolley main body 36 performs cargo handling work on the loading platform 38 of the truck 37, the front horizontal bar 11 of the base 15 is arranged on the truck side, and the rear horizontal bar 11 is arranged on the truck side. 12 is positioned away from the track 37 with respect to the front horizontal bar 11 . As described above, in this specification, the front side and the rear side of the cargo handling vehicle 10 are defined as the front side and the rear side closer to the truck 37 when the cargo handling vehicle 10 is arranged adjacent to the truck 37 as a reference. , and the side away from the track 37 is the rear side.

The upper parts of the respective front-side supports 21 and 22, that is, the protruding parts that protrude above the work stage 20, form handrail parts 21a and 22a for elevating and lowering the ladders 31 and 32 when the worker climbs and descends them. ing. In the cargo handling vehicle 10 shown in FIGS. 1 and 2, ladders 31 and 32 are arranged at the ends of the working stage 20 in a direction perpendicular to the working stage 20, respectively. A worker can ascend and descend between the ground and the work stage 20 using either one of the ladders 31 and 32 . At that time, the operator can safely hold the handrails 21a and 22a of the front support columns 21 and 22 with one hand and the handrail support columns 23a and 24a of the rear support columns 23 and 24 with the other hand. The work stage 20 can be moved up and down. In this way, the upper ends of the four columns for supporting the working stage 20 function as safety handrails when the worker climbs and descends.

The work trolley body 36 has two front-side struts 21, 22 and two rear-side struts 23, 24, each supporting part of the ladder 31, 32 to which the ladder member 31a, 32a is attached. Configure. Further, the upper portions of the front-side supports 21 and 22 function as handrails 21a and 22a, and the upper ends of the rear-side supports 23 and 24 function as handrails and a handrail support 23a to which safety handrails 33 and 34 are attached. 24a. In this way, the four vertical columns attached to the base 15 function as members for supporting the working stage 20 and as handrails, and the lightweight cargo handling platform 10 can be obtained with a small number of parts. be done. By moving the cargo handling vehicle 10 having a lightweight structure to the loading platform 38 of the truck 37 by the casters 18, the cargo handling work can be safely performed, and the workability of the cargo handling work can be improved.

As shown in FIG. 3 , when the cargo handling vehicle 10 is arranged adjacent to the loading platform 38 of the truck 37 , the working stage 20 is positioned at the height of the loading platform 38 . In FIG. 3, the worker indicated by reference numeral P1 is working on the working stage 20, and the worker indicated by reference numeral P2 is working on the loading platform .

When cargo handling work is performed, by operating stoppers (not shown) provided on the casters 18, the working vehicle main body 36 can be brought into a fixed state adjacent to the track 37, and cargo handling work can be performed safely. can. When a worker moves between the working stage 20 and the loading platform 38 of the truck 37, the worker straddles the erected fan plate 39. There is no difference in height and workers can move safely.

A suspension frame body 40 is provided on the work vehicle main body 36 . The suspension frame 40 includes a vertical support bar 41 attached to the front-side support 21 and a vertical support bar 42 attached to the front-side support 22. The upper ends of the two vertical support bars 41 and 42 The parts are connected by an upper end connecting rod 43 . Further, the lower ends of the vertical support rods 41 and 42 are connected by a lower end connecting rod 44, and the hanging frame 40 is quadrilateral. These bars are made of metal round pipes having a circular cross section, and the bars are joined together by welding, so that the suspension frame 40 has sufficient strength even if it is lightweight.

The vertical support rod 41 is arranged inside the front support pillar 21, and is detachably attached to the front support 21 at the vertical central portion and the lower end of the vertical support rod 41 by two clamp members 45a. Similarly, the vertical support rod 42 is arranged inside the front support pillar 22, and is detachably attached to the front support 22 by two clamp members 45b at the vertical central portion and the lower end of the vertical support rod 42. ing. In this way, the vertical support bars 41 and 42 are not displaced in the front-rear direction from the front-side struts 21 and 22, so even if the work vehicle main body 36 is arranged on the side of the truck 37, the front-side struts 21 and 22 do not move. A worker can safely move between the working stage 20 and the loading platform 38 without creating a gap between the 22 and the side of the truck 37 . However, even if the vertical support bars 41 and 42 are attached to the outer sides of the front-side struts 21 and 22, it is possible to similarly prevent the occurrence of gaps. Also, the respective vertical support rods 41 and 42 may be fixed to the front support columns 21 and 22 by welding.

A hook 46 is attached to each of the vertical support bars 41 and 42 by a clamp member 47 . The hook 46 has a horizontal portion 46a protruding forward of the cargo handling vehicle 10 and a vertical portion 46b protruding downward at the tip of the horizontal portion 46a. be able to. By hooking the hook 46 on the fan plate 39, the cargo handling vehicle 10 is prevented from leaving the truck 37 carelessly. The hook 46 can move vertically by loosening the clamp member 47 . Hook 46 can be engaged with fan plate 39 by moving hook 46 downward from the position shown in FIG. However, the hooks 46 may be attached to the front support columns 21 and 22 .

A sling fitting 51 is attached to the upper end of each of the vertical support rods 41 and 42, and a safety block 52 is attached to each sling fitting 51 as shown in FIG. The safety block 52 is also referred to as a safety block. A wire rope 54 is wound inside the housing 53, and a fitting 55 to be attached to a worker's belt is provided at the tip of the wire rope 54. ing. When the wire rope 54 is slowly paid out from the safety block 52, the wire rope 54 is paid out with little resistance, and when the worker moves in the direction approaching the safety block 52, the wire rope 54 is automatically wound up. On the other hand, when the wire rope 54 is rapidly paid out, the wire rope 54 is locked. As a result, when the worker falls from the working stage 20, the wire rope 54 is locked to ensure the safety of the worker.

As shown in FIG. 2, when two safety blocks 52 are attached to the suspension frame 40, a safety rope, that is, a wire rope 54 can be attached to the waist belt of the worker P1 on the work stage 20. 3, a wire rope 54 can be attached to the waist belt of a worker P2 working on the bed 38 of the truck 37. As shown in FIG. In this way, by using the suspension frame 40, the worker P1 travels on the work stage 20 to perform the work, and the worker P2 on the loading platform 38 of the truck 37 transfers the load to and from the worker P2. When performing work, the worker P1 on the work stage 20 can work efficiently without feeling uneasy about falling. Moreover, the worker P2 on the platform 38 can also work safely. However, the wire rope may be attached only to the operator P1 on the working stage 20 by attaching one safety block 52 of the suspension frame 40 .

FIG. 4 is a rear view of a cargo handling vehicle for trucks according to another embodiment, and FIG. 5 shows a state in which the cargo handling vehicle shown in FIG. It is a side view.

The work trolley body 36 shown in FIGS. 4 and 5 is the same as the cargo handling work trolley described above, and has front side struts 21 and 22 and rear side struts 23 and 24 attached to the base 15. Four struts , a working stage 20 is arranged above the base 15 . Portions of the front support posts 21 and 2 above the work stage 20 constitute handrail portions 21a and 22a, and portions of the rear support posts 23 and 24 above the work stage 20 constitute handrail support portions 23a, 24a.

The cargo handling vehicle 10 shown in FIGS. 4 and 5 is different from the cargo handling vehicle 10 described above in that a suspension frame 40 is attached to the back side of the vehicle main body 36 . The suspension frame 40 has a safety handrail 33, two vertical support rods 41 and 42 attached to the working stage 20, and an upper end connecting rod 43 connecting the upper ends of these rods, and has a gate shape. there is Also in the cargo handling vehicle 10 of this form, the respective vertical support rods 41 and 42 may be welded and fixed to the vehicle main body 36 .

The length of the upper end connecting rod member 43 of the hanging frame 40 is set shorter than the upper end connecting rod member 43 shown in FIG. A strength of 40 can be maintained. However, the respective vertical support rods 41 and 42 can also be attached to the back side struts 23 and 24, in which case it is preferable to provide the lower end connecting rods 44 in order to increase the strength of the hanging frame 40. At the upper ends of the two vertical support bars 41 and 42 forming the suspension frame 40, a curved portion 48 is provided that curves upward from the loading platform 38 of the truck 37. As shown in FIG. When two safety blocks 52 are attached to the hanging frame 40 as shown in FIG. A wire rope 54 can be attached to the person P2. However, one safety block 52 may be attached to the suspension frame 40 and only the worker P1 on the work stage 20 may be attached with the wire rope.

In the cargo handling vehicle 10 shown in FIG. 5, the hooks 46 are attached to the front struts 21 and 22 so as to be vertically movable, and in FIG. is indicated.

FIG. 6 is a side view showing a modification of the traveling wheels 17 provided on the working vehicle main body 36. As shown in FIG. Sliding members 56 are provided in front and rear of the supporting leg member 16 inside the supporting leg member 16 , and the base 19 of the caster 18 having the running wheels 17 is attached to the sliding member 56 . By moving the sliding member 56 in the front-rear direction as indicated by the arrow, the position of the traveling wheel 17 in the front-rear direction can be changed. Thus, by increasing the distance between the front and rear traveling wheels 17 according to the location where the work vehicle body 36 is used, the stability of the work vehicle body 36 can be enhanced.

The work trolley main body 36 is rectangular in plan view, and ladders 31 and 32 are provided at both ends of the rectangle. When the two work carriage bodies 36 are butted together at their ends, the two work carriage bodies 36 can be arranged along the bed of the truck. Thereby, a plurality of workers can work on the work stage 20 respectively.

The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

10 Cargo handling truck 11 Front horizontal bar 12 Rear horizontal bar 15 Base 16 Supporting leg member 17 Traveling wheel 18 Caster 20 Work stage 21, 22 Front struts 23, 24 Rear strut 26 Expand metal 31, 32 Ladder 33, 34 Safety handrail 36 Work cart body 37 Truck 38 Cargo bed 39 Fan plate 40 Suspension frame body 41, 42 Vertical support bar 43 Upper end connecting bar 44 Lower end connecting bar 46 Hook 48 Curved part,
51 hanging hardware 52 safety block 54 wire rope

Claims (5)

A cargo handling vehicle for a truck, which is arranged adjacent to the bed of the truck and used when performing cargo handling work on the truck,
a base having a track-side front-side horizontal bar and a rear-side horizontal bar extending parallel to the front-side horizontal bar, and provided with traveling wheels;
Work to be fixed to the vertical front struts attached to both ends of the front horizontal bar and to the vertical back struts attached to both ends of the rear horizontal bar and placed above the base. a stage for
a safety handrail attached to a handrail post portion formed by a portion of the rear support post above the working stage;
a work trolley body including a ladder attached between the front-side support and the rear-side support for allowing a worker to climb up and down between the work stage and the ground;
a suspension frame body including two vertical support bars protruding upward from the work stage and attached to the work vehicle main body, and an upper end connecting bar attached to the upper end of the vertical support bars; Provided on the work cart body,
A cargo handling vehicle for a truck, in which a safety block around which a wire rope to be worn by a worker is wound is attached to the suspension frame. In the cargo handling vehicle for trucks according to claim 1,
A cargo handling truck for trucks, wherein the vertical support rods are attached to the front support column, and the lower ends of the two vertical support rods are connected by a lower end connecting rod. In the cargo handling vehicle for trucks according to claim 2,
A cargo handling vehicle for a truck, wherein the vertical support bar is provided with a hook to be engaged with a fan plate of the truck. In the cargo handling vehicle for trucks according to claim 1,
A cargo handling work carrier for a truck, wherein the vertical support bar is attached to the safety handrail, and a curved portion is provided on the upper portion of the vertical support bar so as to curve upwardly of the bed of the truck. 5. The cargo handling vehicle for a truck according to claim 4, wherein a handrail portion formed by a portion of the front support post above the work stage is provided with a hook that engages a fan plate of the truck. Cargo handling trolley for trucks.

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