JPH0479958B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a mounting structure for a counterweight disposed on the rear side of a forklift vehicle body.

Conventional technology As a conventional forklift, those with the structure shown in Figs.
(See Publication No. 104582). That is, the vehicle body 1 is
Side frames 2, 2 arranged in the longitudinal direction on both sides
The side frame has an overhead front pillar 3 and an overhead rear pillar 4 erected thereon, and a fork 5 is attached to the front side. A steering axle mounting plate 6,
6 and hooks 7, 7 are provided oppositely to each other, and the steering axle mounting plates 6, 6
A steering axle mounting base 8 is installed in between. A counterweight support 9 having a screw hole is fixed to the upper surface of the steering axle mounting base 8, and a steering axle mounting blanket 10 is fixed to the lower surface. On the other hand, the counterweight 11 is composed of an upper weight base part 12 and a lower skirt part 13, and an engagement hole 14 is formed in the weight base part 12, and a through hole 15 is formed in the skirt part. In this structure, when assembling the counterweight 11 to the rear side of the vehicle body 1, the counterweight 11 is lifted above the hook 7 using a crane, and then lowered to lock the engagement hole 14 to the hook 7. As shown in FIG. 6, the bolt 16 is inserted into the through hole 15 and is engaged with the threaded hole in the counterweight support 9.

Problems to be Solved by the Invention In such a forklift, the overhead guard rear pillar 4 as shown in FIG.
There is a need to further reduce the gap S between the counterweight 11 and the counterweight 11, to give a sense of continuity to both members, and to improve the appearance quality. However, since the counterweight 11 is assembled by engaging the engagement hole 14 with the hook 7 after being lifted by a crane as described above, the counterweight 11 is assembled by engaging the engagement hole 14 with the hook 7 during lifting. 11 swings, the weight base portion 12 may interfere with the overhead guard rear pillar 4, and the surface coating of the overhead guard rear pillar 4 may peel off. For this reason, despite the above-mentioned request, the reality is that the gap S is set sufficiently to avoid interference between the counterweight 11 and the overhead rear pillar 4 during lifting.
It was not possible to improve the appearance quality by providing a sense of continuity between the two members.

The present invention has been made in view of these conventional circumstances, and makes it possible to avoid interference between the overhead guard rear pillar and the counterweight, and to minimize the gap between the two members to create a sense of continuity. The present invention provides a counterweight mounting structure.

Means for Solving the Problems In order to solve the above problems, in the present invention, a hook is brought into contact with the upper part of the rear end of the vehicle body of the forklift, and an engagement hole is provided in the front side of the counterweight. In a structure in which the counterweight is lifted above the hook and then lowered to engage the engagement hole with the hook, and a skirt portion at the bottom of the counterweight is screwed to the bottom of the rear end of the vehicle body, the counterweight is attached to the skirt portion. A seat portion is provided that comes into contact with the lower rear end of the vehicle body when the weight is lifted to restrict the forward movement of the counterweight, and that separates from the lower rear end of the vehicle body as the counterweight is lowered.

Operation In the above configuration, when assembling, the counterweight is lifted above the hook using a crane. Then, the seat part provided in the skirt part at the bottom of the counterweight comes into contact with the lower part of the rear end of the vehicle body.
The forward movement of the counterweight is restricted, and interference between the counterweight and other vehicle body constituent members is avoided. Next, when the counterweight is lowered, the seat part is separated from the lower part of the rear end of the vehicle body, and the engagement hole is engaged with the hook. By screwing the skirt part to the lower part of the rear end of the vehicle body, the counterweight is lowered. It is fixed to the vehicle body.

Embodiment An embodiment of the present invention will be described below with reference to the drawings, with the same members and portions as those of the conventional structure being denoted by the same reference numerals. That is, as already described with reference to FIGS. 4 to 6, the vehicle body 1 includes side frames 2, 2 disposed on both sides in the longitudinal direction, and an overhead guard front erected on the side frames 2, 2. It has a pillar 3 and an overhead guard rear pillar 4, and a fork 5 is attached to the front side.
End ribs 17 are attached to the rear end portions of the side frames 2, 2 that constitute the rear upper part of the vehicle body 1, and steering axle mounting plates 6, 6 that extend toward the rear of the vehicle body and project upwardly. Hooks 7, 7 are provided oppositely.
The steering mounting plate 6, 6
A steering axle mounting base 8, which bulges downward and constitutes the rear lower part of the vehicle body, is installed between the two. A counterweight support 9 and a steering axle mounting bracket 10, which similarly constitute the rear lower part of the vehicle body, are fixed to the upper and lower surfaces of the steering axle mounting base 8, and the counterweight support 9 is fitted with a screw. A hole is formed. On the other hand, the counterweight 11 is composed of an upper weight base part 12 and a lower skirt part 13, as shown in FIG. 15 is formed. This skirt part 1
A concave portion 18 is formed at the lower end of the center of the front side of the skirt portion 3, and a raised first seat portion 19 that is slightly lower than the general surface of the skirt portion 13 is provided at the lower end of the concave portion 18. ing. A bolt seat 20 is provided near the top of the recess 18, and second seat portions 21, 21 are provided opposite to each other at the lower end portions of both front sides of the weight base portion 12. The positional relationship in the height direction of the second seat parts 21, 21, the first seat part 19, and the bolt seat 20 is as shown in FIG. In the lifted state such that they face each other, the second seat part 21 is attached to the end rib 17, the bolt seat 20 is attached to the upper end of the counterweight support 9,
The first seat portions 21 respectively abut the steering axle mounting blankets 10;
In addition, as shown in FIG. 3, when the engagement hole 14 and the hook 7 are completely engaged, the first and second
The seat portions 19 and 21 are both spaced downward from the respective members that were in contact with each other, and the bolt seat 20 is displaced to the lower end portion of the counterweight support 9.

In this embodiment having the above configuration, when assembling the counterweight 11 to the vehicle body 1, the counterweight 11 is lifted up by a crane (not shown), and as shown in FIG. Move to the opposite position.
Then, as described above, the second seat part 21 abuts on the end rib 17, the bolt seat 20 abuts on the upper end of the counterweight support 9, and the first seat part 19 abuts on the steering axle mounting blanket 10, respectively. Therefore, the counterweight 11 is restricted from moving forward. Therefore, even if the gap S (Fig. 4) between the overhead guard rear pillar 4 and the counterweight 11 is made small, interference during lifting of both members can be reliably avoided, and the overhead guard rear pillar caused by the interference can be avoided. 4. Damage and peeling of surface coating are prevented. Next, when the counterweight 11 is gradually lowered, the first and second seat parts 19 and 21 and the bolt seat 20 slide along the members that come into contact with each other, and the engagement hole 14 is guided by the hook 7. Ru. When the engagement hole 14 and the hook 7 are completely engaged, the counterweight 11 is temporarily attached to the vehicle body 1, and the first,
The second seat portions 19 and 21 each have an end rib 1
7. Spaced from the steering axle mounting bracket 10 (Figure 3). After that,
The assembly work is completed by inserting the bolt 16 into the through hole 15 and screwing it onto the counter support 9 as shown in FIG. 6. In this assembled state, the overhead guard rear pillar 4
As described above, the gap S between the counterweight 11 and the counterweight 11 can be set to a very small value, so that both members have a sense of continuity and can improve the appearance quality.

Effects of the Invention As explained above, the present invention has the skirt portion of the lower part of the counterweight contact the lower part of the rear end of the vehicle body while the counterweight is lifted, and restricts its forward movement, and as the counterweight descends. A seat section is provided at a distance from the lower rear end of the vehicle body. Therefore, even if the gap between the counterweight and the overhead guard rear pillar is set to a small value, interference between the counterweight and the overhead guard rear pillar during lifting can be avoided. Therefore, it is possible to miniaturize the gap and obtain integral continuity between the counterweight and the overhead guard rear pillar without causing any disadvantages to the appearance such as peeling off the paint on the overhead guard rear pillar due to such interference, resulting in improved appearance. It is possible to improve this. In addition, in the embodiment described above, since the movement of the counterweight is restricted by both the first and second seat parts, swinging of the counterweight is reliably prevented and interference with the overhead guard rear pillar is prevented. It is advantageous to avoid.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a counterweight according to an embodiment of the present invention, FIGS. 2 and 3 are partially cutaway side views showing the operation of the same embodiment, and FIG. 4 is a side view of a conventional forklift. 5 is a perspective view of the rear part of the vehicle body of the forklift, and FIG. 6 is a sectional view taken along the line from FIG. 5. DESCRIPTION OF SYMBOLS 1...Vehicle main body, 7...Hook, 11...Counterweight, 13...Skirt portion, 14...Engagement hole, 19...(First) seat portion.

Claims (1)

[Claims] 1. A hook is provided protruding from the upper part of the rear end of the forklift body, and an engagement hole is provided in the front side of the counterweight, and the counterweight is lifted above the hook and then lowered to engage the engagement hole with the hook. At the same time, in a structure in which a skirt portion at the lower part of the counterweight is screwed to the lower rear end of the vehicle body, the skirt portion is attached to the skirt portion while the counterweight is lifted up and comes into contact with the lower rear end of the vehicle body, thereby causing the counterweight to move forward. What is claimed is: 1. A counterweight mounting structure comprising a seat portion which regulates the movement of the counterweight and which is spaced apart from a lower rear end of the vehicle body as the counterweight is lowered.