JP2002087774A - Picking forklift truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a picking forklift truck facilitating the action of an operator on a driver's stand by reducing the mounting area of an operation panel. SOLUTION: This picking forklift truck is provided with: a vehicle body 2 traveling forward and backward; masts 3 erected on the vehicle body 2; a driver's stand 4 disposed on the front side of the vehicle body 2 and lifted and lowered along the erecting direction of the masts 3; a cargo handling device 5 mounted on the front part of the driver's stand 4 and having forks 15; and the operation panel 6 mounted on the front part of the driver's stand 4 and having an operation means for operating at least litter of the traveling of the vehicle or the cargo handling device 5 arranged on its upper mounting surface. A passage for the driver on the driver's stand 4 to move between the cargo handling device 5 and the operation panel 6 is formed on both its sides, and the passage side part in the lower part of the operation panel 6 is recessed toward the operation panel 6 from the passage.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a picking forklift, and more particularly, to a picking forklift capable of widely using a cab surface and facilitating an operator's work.

[0002]

2. Description of the Related Art Among forklifts as cargo handling vehicles, there is a so-called picking forklift. In a picking forklift, an operator who gets on a driver's cab that moves up and down together with a cargo handling mechanism such as a fork travels along a passage provided between rack shelves installed in parallel in a rack warehouse or the like to perform pallet work and picking work. It is configured.

[0003] A conventional picking forklift 51 is
As schematically shown in FIG. 3, a vehicle main body 52, a pair of masts 53 erected at right and left sides of a front side of the vehicle main body 52, and a driver's cab 54 that is raised and lowered along the masts 53. , A cargo handling mechanism 5 provided in front of the cab 54
5 and an operation panel 5 erected on the floor 57 of the cab 54
6. The loading mechanism 55 includes a shift mechanism 60
And a rotation mechanism 61 and a sub-lift mechanism 71 below the shift mechanism 60.

[0004] A vehicle body 52 of the picking forklift 51 has a built-in power unit and a main hydraulic unit, and is provided with steering wheels and rotating wheels below the power unit. By operating the steered wheels and the like, the picking forklift 51 is driven to be able to change its direction, and pallet work and picking work are performed. In the picking operation, the operator who gets on the driver's cab 54 that moves up and down together with the fork moves on the pallet on the fork and performs the operation.

[0005] The operator's cab 54 on which the operator gets in is lifted and lowered by using a lift hydraulic cylinder (not shown) and a lift chain 59. The operation of running and lifting the picking forklift 51 is performed by operating a steering handle, an operation lever, and the like provided on the operation panel 56.

As shown in FIG. 4, the operation panel 56 has a frame formed by a frame member such as a side frame member 81 with a part of the member being exposed, and the surface thereof is roughly covered with a cover member 82 so as to have an outline. It is formed in a rectangular parallelepiped. A display panel is formed by projecting the front cover member 83, the upper surface is covered with an upper surface cover member 84 provided with predetermined holes and the like to form a mounting surface, and the lower surface is opened to be mounted on the driver's cab 54. I have. A steering handle 8 for traveling is provided on this mounting surface.
0a, a traveling operation lever such as a control lever 80b for switching between forward and backward, a cargo handling lever such as a shift lever 80c, switches such as a key switch 80d, and lamps such as a traveling indicator 80e. Provided.

That is, the conventional operation panel has a top cover member 8.
The mounting surface formed by the steering handle 80
a, it has a sufficient area to operate the traveling operation lever 80b, the shift lever 80c, and the like, and is formed in a rectangular parallelepiped shape such that this area is the same from the mounting surface of the operation panel to the lower end.

[0008]

Therefore, in the above-described conventional picking forklift 51, the following inconvenience has occurred. The operation panel is formed in a rectangular parallelepiped having almost the same dimensions from the mounting surface on the upper surface to the lower end, and the workability is poor such that the operator's feet hit the lower part of the operation panel in a narrow cab. The space created in the lower part of the operation panel was only used for storage, etc., and was not economical.

The present invention has been made in view of these inconveniences, and is intended to reduce the cross-sectional area of the lower support portion of the operation panel to be smaller than the area of the mounting surface, thereby reducing the size of the cab or the operator's cab. The purpose of this is to provide a picking forklift that makes it easy to take action.

[0010]

SUMMARY OF THE INVENTION A picking forklift according to the present invention comprises a vehicle body traveling back and forth, a mast erected on the vehicle body, and an erecting direction of the mast disposed on a front side of the vehicle body. A cab raised and lowered along the cab, a cargo handling device provided on the front side of the cab and having a fork, and a cab provided at the front portion of the cab for running a vehicle or operating at least one of the cargo handling devices An operation panel having operation means arranged on an upper mounting surface, wherein the operation panel has a passage formed on both sides thereof for a driver on the cab to move between the cargo handling device and the vehicle, and The passage-side portion at the lower part of the operation panel is recessed from the passage toward the operation panel.

Further, in the picking forklift according to the second aspect, the supporting portion below the cross-sectional area of the mounting surface of the operation panel is made smaller in a stepwise manner.

According to the picking forklift of the present application having the above-described structure, the area of the installation portion of the lower part of the operation panel on the cab can be reduced, so that the free space on the cab surface can be widely used. Either the platform can be made smaller for better economics or the free space can be made wider. As a result, when the picking operation is performed by the operator, the operator can easily enter and exit from the left and right sides of the operation panel, can work safely, and can improve the work efficiency.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a simplified perspective view showing the entire structure of a picking forklift according to an embodiment of the present invention, and FIG. 2 is a perspective view showing an operation panel.

The picking forklift 1 includes a vehicle body 2, a pair of masts 3 erected at right and left sides of a front side of the vehicle body 2, a driver's cab 4 raised and lowered along the mast 3, It has a cargo handling device 5 provided on the front side of the pedestal 4 and an operation panel 6 erected on the front part on the floor 7 of the cab 4, and the operation panel 6 includes members such as levers and switches. The cross-sectional area of the support portion 30b below the mounting surface area (cross-sectional area of the mounting surface portion 30a) is formed to be smaller in a stepwise manner.

Vehicle body 2 of picking forklift 1
Has a built-in power unit and a main hydraulic unit, and a steering wheel and a rotating wheel are provided on a lower surface thereof. By operating these, the picking forklift is driven to be able to change direction, and pallet work and picking work are performed.

The operator's cab 4 on which the operator rides is lifted and lowered using a lift hydraulic cylinder (not shown) and a lift chain 9. The traveling and lifting of the picking forklift 1 are performed by operating an operation lever provided on the operation panel 6 to drive a traveling motor, a hydraulic cylinder, and the like.

As shown in FIG. 2, the operation panel 6 has an upper mounting surface portion 30a on which operation levers such as a wheeling handle 6a and a traveling control lever 6b are mounted, and a lower support portion 30b mounted on a cab. It is composed of The mounting surface portion 30a is formed in a frame by an upper frame member 31a, and the surface is covered with an upper cover member 32a to form a box shape. Front cover member 33 on the front
Are projected to form a display panel, and the upper surface is covered with an upper surface cover member 34. The top cover member 34 is provided with predetermined holes and the like, and is configured to form a mounting surface for an instrument, a lever, a switch, an indicator lamp, and the like. The front cover member 33 is formed commonly in the upper and lower directions.

The support portion 30b of the operation panel 6 includes a lower support frame 31b, a lower cover member 32b, and a front cover member 3b.
3, the inside is hollow and formed integrally with the mounting surface 30a. And the area of the mounting surface 30a of the operation panel 6,
That is, the cross-sectional area of the support portion 30b attached to the driver's cab below the cross-sectional area of the mounting surface portion 30a of the operation panel 6 is made smaller so as to be uneven. Thereby, the installation space on the cab can be reduced, and the cab 4 can be reduced in size. Or, the floor space of the cab 4 can be used widely,
The movement of the operator's foot can be easily performed, and the productivity can be improved.

The cargo handling device 5 is provided in front of the floor 7 and the ceiling 8 of the cab 4 so as to be movable up, down, left and right, and to rotate a fork. The shift mechanism unit 10 of the cargo handling device 5 is also referred to as a shift carriage, and is provided so as to protrude to the front side while hanging vertically.
Below the shift mechanism 10, a rotation mechanism 11 for rotating the fork 15 is vertically movably arranged. The support member 12 of the shift mechanism 10 is provided so as to protrude from the front surface of the driver's cab 4, and has a rotating shaft positioned so as to pass through the inside of the support member 12. A pinion gear is attached to each of the upper and lower ends of the rotating shaft, and a rack gear 14 is attached to the front end surfaces of the floor 7 and the ceiling 8 constituting the driver's cab 4 so as to mesh with the pinion gear.
The pinion gear is connected to the swivel cover-1 via a rotating shaft.
The shift mechanism 10 is rotated by the hydraulic motor covered by the motor 8 and moves left and right along the front end surface of the cab 4. The shift mechanism 10 is operated by an operation lever provided on the operation panel 6.

The rotating mechanism 11 is provided with the revolving unit cover 1.
8 includes a rotation shaft 20 that is rotated by a hydraulic motor housed in the rotation shaft 8, and a finger bar 22. A pair of forks 15 is provided by the finger bar 22.
Are supported in parallel. In picking work,
An operator who gets on the cab 4 that moves up and down together with the fork 15 can move on the fork 15 and work.

Further, between the shift mechanism 10 and the rotation mechanism 11, a sub-lift mechanism 21 for vertically moving the rotation mechanism 11 is arranged. The sub-lift mechanism 21 is disposed in front of the shift mechanism 10, and includes a hydraulic cylinder 24 for sub-lift and a pair of sub-lift chains 26. The sub-lift mechanism 21 is operated by an operation lever provided on the operation panel 6.

The driver's cab 4 is provided with a pair of left and right columns 28 so as to support the ceiling 8, and a protection guard 29 is provided on a side surface of each column 28. The protection guard 29 can be raised and lowered between a flat state substantially parallel to the floor 7 and an upright state substantially parallel to the column 28. By providing the protection guard 29 in this way, the safety of the work of the operator can be improved.

Next, an operation and an operation of picking a load from a rack shelf by the picking forklift according to the present embodiment will be described. First, the operator raises the protection guard 29 and gets on the cab 4, and then lowers the protection guard 29 to a flat state. Then, while standing toward the operation panel 6, the traveling control lever and the wheel handle are operated to cause the picking forklift 1 to travel, and go to a required rack shelf. Therefore, operation panel 6
To operate the levers to move the cab 4 up and down to position the cargo handling device 5 at the required height. At this time, if the height position is incorrect, the hydraulic cylinder 24 of the sub-lift mechanism 21 is operated to adjust the height, and then the hydraulic motor of the rotation mechanism 11 is moved so that the direction of the fork 15 is oriented toward the load. To rotate.

If the vehicle body 2 is moved forward to perform the unloading operation, the shift mechanism 10 is moved left or right to move the fork 15 forward and insert the fork 15 under the load. Then, the sub-lift mechanism section 21 or the cab 4 is raised to carry out the unloading. When performing the picking operation, the operator stops the picking forklift in front of the load, raises the protection guard 29 on the side, grasps the support member 35 and moves on the fork 15, and performs picking. When the picking work is completed,
After the operator gets on the cab 4 and lowers the protective guard 29 to secure safety, the operator stands toward the operation panel 6 and moves the shift mechanism 10 to position the load at the center of the cab 4. And the travel control lever,
Then, the picking forklift 1 is operated by operating the handlebar, and the picking forklift 1 is moved to a required rack shelf to perform the unloading operation. Hereinafter, the above operation is repeated as necessary.

As described above, in the picking forklift according to the present invention, the cross-sectional area of the lower support portion 30b of the operation panel 6 is made smaller than the cross-sectional area of the mounting surface portion 30a having the mounting surface. 6, the area of the installation surface can be reduced, and the operator can easily work on the cab, and can easily get in and out of the cab by picking work and the like, thereby improving work efficiency and safety.

It should be noted that the present invention is not limited to the above description, but can be modified without departing from the spirit of the invention. For example, in the above description, an example in which the mounting surface portion and the support portion are formed stepwise has been described. However, the lower portion of the mounting surface portion may be narrowed down and formed small to be integrally formed with the support portion, or may be formed below the support portion. May be squeezed gradually to form a small shape.

[0027]

As described above, in the picking forklift according to the present invention, the mounting area of the operation panel can be reduced. In addition, it is easy for the operator to get in and out of the cab during work on the cab, picking work, and the like, thereby improving work efficiency and safety. In addition, by reducing the space below the operation panel, the space can be effectively used.

[Brief description of the drawings]

FIG. 1 is a simplified perspective view showing the entire structure of a picking forklift according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing an operation panel of the present invention.

FIG. 3 is a simplified perspective view showing the entire structure of a conventional picking forklift.

FIG. 4 is a perspective view showing a conventional operation panel.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 picking forklift 2 vehicle body 3 mast 4 cab 5 cargo handling device 6 operation panel 7 floor 8 ceiling 9 chain 10 shift mechanism 11 rotation mechanism 12 support 30a mounting surface 30b support

Claims (2)

[Claims] 1. A vehicle main body traveling back and forth, a mast erected on the vehicle main body, a cab arranged on a front side of the vehicle main body and raised and lowered along the erection direction of the mast, An operation in which a cargo handling device provided on the front side of the platform and having a fork and operating means provided on a front portion of the cab for operating a vehicle or operating at least one of the cargo handling devices are arranged on an upper mounting surface. A passage for the driver on the cab to move between the loading and unloading device on both sides of the operation panel, and the passage-side portion at the lower part of the operation panel is operated from the passage. A picking forklift characterized by being concave toward the board. 2. The picking forklift according to claim 1, wherein the cross-sectional area of the support portion below the cross-sectional area of the mounting surface of the operation panel is made smaller.