JPH05278422A - Bush installing structure - Google Patents

Abstract

PURPOSE:To provide a bush installing structure which can reduce the assembly cost and can allow the automation easily. CONSTITUTION:In a bush installing structure to position and fix a bush 11 between a pair of brackets 13 and 13, guide grooves 15 and 15 communicating each other are provided about at the lower side of the pair of brackets 13 and 13, while projections 14 and 14 are provided on both sides of the bush 11, and a positioning structure is accomplished by inserting the projections 14 and 14 on both sides of the bush 11 to the guide grooves 15 and 15 of the pair of brackets 13 and 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bush mounting structure, and more particularly to a bush mounting structure for positioning and fixing the bush between a pair of brackets.

[0002]

2. Description of the Related Art Conventionally, there is one in which both ends of a leaf spring of a vehicle suspension (not shown) are supported by a vehicle body frame 2 via bushes 1 (FIG. 8).
And FIG. 9).

The bush 1 is positioned between a pair of brackets 3 and 3 previously attached to the vehicle body frame 2 and visually positioned, and bolts 5 are inserted into these bolt insertion holes 4 and 4.
Is fixed by inserting.

[0004]

By the way, in such a conventional structure, the bush 1 includes the pair of brackets 3, 3.
It is difficult to make the bolt insertion holes 4 and 4 of the brackets 3 and 3 and the bolt insertion hole 6 of the bush 1 match each other because they move immediately even if they are positioned between the three.

For this reason, it is not easy to assemble the bush 1 to the vehicle body frame 2, and it takes a lot of time and labor, resulting in an increase in assembly cost.

For the same reason, it has been difficult to automate the assembly of the bush 1.

The present invention has been made in view of the above circumstances, and can reduce the assembly cost, and further,
An object is to provide a bush mounting structure that is easy to automate.

[0008]

In order to achieve the above-mentioned object, the present invention provides a bush mounting structure for positioning and fixing a bush between a pair of brackets. The bracket is provided with guide groove portions that communicate with each other substantially downwardly, so that the convex portions on both sides of the bush are fitted into the guide groove portions of the pair of brackets while being positioned and assembled.

[0009]

Embodiments of the bush mounting structure according to the present invention will be described below in detail with reference to the accompanying drawings.

1 to 5 show an embodiment of the present invention. The bush mounting structure of the present embodiment has a structure in which the bush 11 pre-mounted on the suspension subassembly 10 is mounted.
Is positioned and fixed between the pair of brackets 13, 13 of the body frame 12.

The subassembly 10 is constructed by assembling various suspension parts of a vehicle (not shown).

In this mounting structure, the projections 14 and 14 are provided on both sides of the bush 11, and the pair of brackets 1 is provided.
Guide groove portions 15, 15 that communicate with each other substantially downward and that widen downward are provided on the inside of each of the reference numerals 3, 13.

The protrusions 14, 14 of the bush 11 are formed in a conical shape in a substantially truncated cone shape, and are projected to the left and right of the bush.

The guide groove portions 15 and 15 of the pair of brackets 13 and 13 are formed so as to partially project to the outside of each of the brackets by pressing or the like. Specifically, the holes 13a of the brackets and the holes of the bushes 11 are formed. The bush is formed so as to stop at the position where 11a is matched.

In this embodiment, a pair of brackets 13, 1
The upper portions of the guide groove portions 15, 15 of No. 3 are particularly formed in a shape corresponding to the shape of the convex portions 14, 14 of the bush 11.

In the case of this embodiment, the guide groove portions 15 and 15 are formed so as to be deeper outward than the flat surface portion 13b of the brackets 13 and 13.

Next, the operation of mounting the bush 11 of this embodiment will be described, and this embodiment will be made clearer. In this embodiment, the bush 11 is fitted between the pair of brackets 13, 13 from below.

The brackets 13, 13 of the bush 11
The fitting into the space can be smoothly performed because the lower portions of the guide groove portions 15 and 15 are widened toward the end.

According to the above fitting, the convex portion 1 of the bush 11
4, 14 are guide groove portions 15, 1 of the brackets 13, 13.
When the guide groove 5 reaches the upper end of the guide groove, the hole 11a of the bush 11 and the holes 13a, 13a of the brackets 13, 13 are aligned with each other and the upward movement is stopped.

At this time, the bush 11 is the bracket 1
Movement between the upper and lower portions of the third and third members is restricted, and the members are positioned at predetermined positions.

If a bolt (not shown) is inserted into the bush 11 and the brackets 13 and 13 while being positioned in this way, the bush can be easily and quickly attached between the brackets 13 and 13.

FIGS. 6 and 7 show another embodiment of the present invention. Components having the same functions as those shown in FIG. 2 are designated by the same reference numerals and their description is omitted. .

In the case of this embodiment, the brackets 13, 1
The depths of the guide groove portions 15, 15 of No. 3 are formed to be the same as the flat surface portion 13b of the bracket.

That is, the guide groove portions 15 and 1 of this embodiment
5 is formed by projecting inward a peripheral portion of a portion of the bracket 13, 13 corresponding to the guide groove portion.

Also in this embodiment, the upper portions of the guide groove portions 15, 15 of the pair of brackets 13, 13 are
The bush 11 is formed in a shape corresponding to the shape of the convex portions 14, 14 of the bush 11, and the bracket hole 13a and the bush 1 are formed.
It is similar to the case of the above-described embodiment that the bush is formed so as to stop at the position where the hole 11a of No. 1 is aligned,
Similar effects can be obtained.

[0026]

As described above, according to the bush mounting structure of the present invention, in the bush mounting structure for positioning and fixing the bush between the pair of brackets, the convex portions are provided on both sides of the bush, and The guide groove portion that communicates with the bracket of substantially downward is provided,
Since the protrusions on both sides of the bush are fitted into the guide groove portions of the pair of brackets while being positioned and assembled, if the bush is fitted between the pair of brackets from below, the upper end of the guide groove portion When it reaches, the hole of the bush and the hole of the bracket are automatically aligned, and the bush is positioned at a predetermined position.

Therefore, the bolt for assembling the bush can be easily inserted, the cost for assembling the bush can be reduced, and the automation can be easily achieved.

[Brief description of drawings]

FIG. 1 is a diagram showing a state before assembly of an embodiment of a bush mounting structure according to the present invention.

FIG. 2 is an exploded perspective view showing a state before assembly of an embodiment of the present invention.

FIG. 3 is a diagram showing a main part of an embodiment of the present invention.

4 is a cross-sectional view taken along the line AA in FIG.

5 is a sectional view taken along line BB in FIG.

FIG. 6 is a perspective view showing a pair of brackets of another embodiment of the bush mounting structure according to the present invention.

FIG. 7 is a sectional view corresponding to FIG. 5, showing another embodiment of the present invention.

FIG. 8 is an exploded perspective view showing a conventional bush mounting structure.

9 is a sectional view corresponding to FIG. 5, showing a conventional bush mounting structure.

[Explanation of symbols]

 11 Bushing 11a Hole 12 Body Frame 13 Bracket 13a Hole 13b Plane 14 Protrusion 15 Guide Groove

Claims (1)

[Claims] 1. In a bush mounting structure for positioning and fixing a bush between a pair of brackets, convex portions are provided on both sides of the bush, and guide groove portions are provided in the pair of brackets so as to communicate substantially downward. Bush mounting structure, characterized in that the convex portions on both sides of the above are fitted into the guide groove portions of the pair of brackets while being positioned and assembled.