JPS6218480B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lumbar support structure for a standing type reach forklift vehicle.

As a conventional standing type reach forklift vehicle, there is, for example, one shown in FIG. 1 (see U.S. Pat.
This is a standing type reach forklift 5 in which a passenger storage space 3 is formed by a front frame 1 and a side frame 2, and an entrance 4 is formed at the rear. A lumbar support member 7 consisting of a soft pad 6 was fixed with bolts 8.

In addition, OG is the overhead guard, SW is the steering wheel, CL is the control lever,
FC is fork, BA is battery.

However, in the case of such conventional standing-type reach forklift vehicles, the lumbar support structure is fixed, so it is not possible to support the lumbar vertebrae according to the driver's body shape and driver's preferences, and the driver's driving becomes difficult. The problem was that the driver's posture became unnatural and the driver became easily fatigued.

This invention was made with attention to these conventional problems, and aims to solve the above problems by making the lumbar support structure vertically adjustable and fixable at any position. The purpose is

The present invention will be explained below based on the drawings.

FIGS. 2 to 5 are diagrams showing an embodiment of the present invention. First, the configuration will be described. A fixing member 10 is fixed to a pedestal 2a of the side frame 2 with a mounting bolt 2b. Reference numeral 9 denotes a movable member that slides up and down within the cylindrical member 10a of the fixed member 10, and brackets 11 are provided at the upper and lower ends of the shaft portion 11 of the movable member 9.
a and 11b are fixedly installed. 12 is the operating lever,
The operating lever 12 is rotatably supported by a pin 13 on a pedestal portion 11c fixed to a lower bracket 11b, and its upper end is attached to the upper bracket 11a, and its lower end is attached to the protrusion 12a of the operating lever 12. The engaging portion 12b at the tip of the operating lever 12 is engaged with the engaged portion 10c of the lock bracket 10b of the fixing member 10 by the springs 14 which are respectively engaged. The lumbar support member 15 is attached to the upper and lower brackets 11.
A hook 17 and a bolt 18 that are engaged with the through holes 16a and 16b of the holes 16a and 11b, a holding plate 20 made of an iron plate or the like on which a plate 19 that supports the hook 17 and the bolt 18 is fixed, respectively;
It consists of a pad material 21 that covers 0 and a skin 22 that covers the pad material 21. The hook 17 and bolt 18 of this support member 15 are attached to the brackets 11a, 11.
After inserting the bolt 18 into the bracket 11a, 11b, the bolt 18 is screwed into the nut 23.
is fixed as shown in FIG.

Next, the operation of the present invention will be explained using FIGS. 6 and 7.

By rotating the operating lever 12 in the direction A in FIG.
The engaged portion 10c of b and the engaging portion 1 of the operating lever 12
2b is released as shown in FIG.
The lumbar support member 15 fixed to the brackets 11a, 11b of the shaft 11 can freely slide up and down. In the above state, the driver adjusts the vehicle according to the driver's body shape and preference.
The lumbar support member 15 is moved up and down to determine an arbitrary position. Next, when the hand holding the operating lever 12 is released, the engaging portion 12b of the operating lever 12 is moved by the action of the return spring 14 as shown in FIG.
When the lock bracket 10b of the fixing member 10 is brought into contact with the lumbar support member 15 and the lumbar support member 15 is slightly moved up and down in this state, the engaging portion 12b of the operating lever 12 is brought into contact with the engaged portion 10c of the lock bracket 10b by the action of the return spring 14. As shown in FIG. 4, the lumbar support member 15 is re-engaged and vertical movement of the lumbar support member 15 is locked.

As explained above, according to this invention,
The structure is such that the driver's lumbar support member can be slid up and down, and can be easily fixed and released using the operating lever, allowing the driver to move the lumbar support member up and down to suit their own body shape and preference. This has the effect of improving safety and comfort while driving.

[Brief explanation of the drawing]

FIG. 1 is a perspective explanatory view of a standing-type reach forklift vehicle equipped with a conventional lumbar support structure, FIG. 2 is an exploded perspective view of a lumbar support structure according to the present invention, and FIG. 3 is the same as that shown in FIG. 4 is a front view of the lumbar support structure of FIG. 2, FIG. 5 is a sectional view of the lumbar support structure shown in FIG. FIG. 7 is a diagram illustrating the operation in which the operating lever 12 is returned and the engaging portion 12b of the operating lever 12 is brought into contact with the lock bracket 10b. 2... Side frame, 5... Standing type reach forklift, 7, 15... Lumbar support member, 9...
Vertical sliding slide, 10...Fixing member, 10a...
...Cylinder member, 10c...Engaged portion, 12...Operation lever, 12b...Engaging portion.

Claims (1)

[Claims] 1. A fixed member having a cylindrical member extending vertically is supported on the frame of a standing type reach forklift vehicle, and a movable member supporting a lumbar vertebra support member is installed to be vertically slidable with respect to the cylindrical member. A lumbar support structure for a stand-up reach forklift vehicle, characterized in that an engaging portion of an operating lever disposed on a movable member and an engaged portion of the fixed member are configured to be freely engageable and detachable. .