JPH06345396A - Installation of sliding member of forklift - Google Patents

Abstract

PURPOSE:To replace a sliding member without dismantling an inner mast for forming a U-shaped groove which is opened upward in an outer mast, fitting the sliding member into the groove and fixing the sliding member by means of a bolt, when the sliding member is interposed between the inner mast and the outer mast. CONSTITUTION:In installing a sliding member 1, which is interposed in a gap between the upper-rear surface of an inner mast 3 and the upper front surface of an outer mast 2, a U-shaped groove 2b, whose upper part is open, is formed in the outer mast 2, and then the sliding member 1 is fitted in this groove 2b. If necessary, a shim 5 for gap adjustment is slided or inserted from the upper-end open part of the groove 2b into a gap between the sliding member 1 and the bottom of the groove 2b. After this, the sliding member 1 is fixed by engaging the tip of a bolt 4, which is screwed from the outside of the outer mast 2 into a screw hole 2a, to a drill hole 1a. With this contrivance, the sliding member 1 and the shim 5 can be replaced without dismantling the inner mast 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for mounting a sliding member between an outer mast and an inner mast in a forklift.

[0002]

2. Description of the Related Art In a mast device of a forklift, a sliding member smoothes the vertical movement of the inner mast, and when a load is applied, the front side is a roller and the sliding member on the opposite side receives the roller. The conventional sliding member a is provided with a pin portion p as shown in FIG. 5, and is fitted and fixed in a hole d on the outer mast b side as shown in FIG. FIG. 7 shows the arrangement of the sliding member a, the outer mast b, the roller mounting pin e, and the inner mast c, and FIG. 8 shows the drill hole d provided in the outer mast b. 9 and 10
FIG. 3A is a top view and a front view showing a mounting position of a sliding member a in the mast device. In the figure, f indicates a lift bracket.

[0003]

Since the sliding member receives a load in addition to the vertical movement of the inner mast, it causes failure, wear, breakage, etc., and adjustment and replacement are required. Since the sliding member is surrounded by the outer mast and the inner mast, there is a problem that the sliding member cannot be replaced as it is.

[0004]

The present invention has been made in view of the above problems and is provided in an outer mast.
The U-shaped groove to which the sliding member is attached is formed as an open groove in the upper part, and the pin portion for fixing the sliding member is eliminated, and the sliding member is fixed with a bolt.

[0005]

With the above construction, no special disassembling work is required at the time of adjusting or replacing the sliding member, the sliding member can be slid in from above to be stored in a fixed position, and can be fixed by bolts from the outside.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded view showing a sliding member mounting groove shape and a sliding member provided on the outer mast, FIG. 2 is a three-sided view of the sliding member, FIG. 3 is a perspective view showing the first embodiment, and FIG. Second
It is a perspective view showing an example of.

As shown in FIGS. 1, 3 and 4, since the sliding member 1 is attached, the outer mast 2 has a U-shaped groove 2b.
On the side plate 6 provided in the U-shaped groove 2b
Are attached, but both have a shape in which the upper end of the groove is opened.

Since the upper end of the groove is open, the shim 5 can be slid into the sliding member 1 from the upper side of the outer mast 2 and can be replaced without disassembling the inner mast 3. . The sliding member 1 fitted into the fixed position is fixed from the outer side of the outer mast 2 through the screw hole 2a by the bolt 4 using the drill hole 1a.

[0009]

As described above in detail, according to the present invention, by changing the shape of the sliding member and the groove and the assembling method, one worker can easily adjust and replace the sliding member. At the same time, dangerous disassembling work is eliminated, which helps improve work efficiency and safety.

[Brief description of drawings]

FIG. 1 shows a shape of a sliding member mounting groove provided in an outer mast according to the present invention.

FIG. 2 (a) shows a top view of a sliding member according to the present invention. Similarly, (b) shows a front view of the sliding member. Similarly, (c) shows a side view of the sliding member.

FIG. 3 is an exploded perspective view showing the first embodiment of the present invention.

FIG. 4 is an exploded perspective view showing a second embodiment of the present invention.

FIG. 5A is a perspective view of a conventional sliding member.
Similarly, (b) shows a side view of the sliding member. Similarly, (c) shows a bottom view of the sliding member.

FIG. 6 shows a conventional method of attaching a sliding member to an outer mast.

FIG. 7 shows a conventional arrangement of sliding members, rollers, and a mast.

FIG. 8 shows a drill hole for attaching a sliding member, which is conventionally provided in an outer mast.

FIG. 9 is a mounting position of a sliding member showing a top view of the mast device.

FIG. 10 is a mounting position of the sliding member shown in the front view of the mast device.

[Explanation of symbols]

 1 Sliding member 1a Drill hole 2 Outer mast 2a Screw hole 2b Groove 3 Inner mast 4 Bolt 5 Shim 6 Side plate

Claims (1)

[Claims] 1. A sliding member 1 interposed between a rear surface of an inner mast upper portion and a front surface of an outer mast upper portion is fitted into a U-shaped groove 2b provided on the outer mast 2 or a side plate 6 and opened to the upper portion to fix the same. Uses a bolt 4 and a screw hole 2a provided in the outer mast 2 and a drill hole 1a of the sliding member 1 to attach the sliding member to a forklift.