JP2571883Y2 - Horizontal leaf spring stopper mounting structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal leaf spring stopper mounting structure applied to a front independent suspension of a rear wheel drive vehicle having a horizontal leaf spring. The present invention relates to a mounting structure of a stopper rubber which is mounted on a portion transmitting a reaction force to a vehicle body.

[0002]

2. Description of the Related Art Small trucks having a relatively large loading capacity are
Since the load acting on the suspension increases, a spring having a large spring constant is required. As a front suspension suitable for such rear-wheel drive vehicles, a coil spring and a horizontally mounted leaf spring are used in combination to obtain a high level of ride comfort and steering stability, as well as excellent body mountability and spring height above ground. There is a double wishbone type suspension structure that is easy to secure.

FIGS. 4 to 6 show this suspension structure.
This will be briefly described based on the above. FIG. 4 shows the left wheel side of a front suspension for a rear wheel drive vehicle generally called a double wishbone type. An upper arm 3 swinging about a pivot center 2 supported by a frame side member 1 and a suspension cloth A lower arm 6 swingably supported by a member 4 at a pivot center 5 is connected to a knuckle 9 via ball joints 7 and 8, respectively, to form a suspension link. This suspension link is provided with independent coil springs 10 for the left and right wheels, and a leaf spring 11
And the left and right links are connected. That is, the spring constant required for the suspension is the coil spring 1
0 and the leaf spring 11 are used in combination.

By the way, the leaf spring 11 at both ends is connected to the lower arm 6 at the both ends, and at the pivot center 5 it interferes with a stopper rubber 13 attached to the suspension cross member 4 on the vehicle body side, so that the reaction force of the leaf spring is generated. Is transmitted to the vehicle body side. As shown in FIGS. 5 and 6, the stopper rubber 13 is bolted to the suspension cross member 4 via members 14 and 15, and the leaf spring 11 that has received the input is displaced, and the stopper rubber 13 is attached to the suspension cross member 4. The stopper rubber 13 is configured to come into contact with the fixed stopper rubber 13.

[0005] In Fig. 4, reference numeral 21 denotes a tire;
Is a wheel, 23 is a hub, 24 is a brake rotor, 2
5 is a brake caliper, 26 is a shock absorber.

[0006]

In the conventional stopper rubber mounting structure described above, the bolts and nuts are tightened in a narrow space because they are bolted to the cross member 4 via the members 14 and 15. I had to. For this reason, the operator is required to have an unnatural working posture, or a limitation is imposed on the tools that can be used.

Accordingly, an object of the present invention is to provide a stopper mounting structure for a horizontal leaf spring which does not impair the function of the stopper rubber and is excellent in assemblability of the stopper rubber.

[0008]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is directed to a horizontal leaf spring which is disposed in a vehicle width direction and connects independent left and right front wheel suspension links. In the stopper mounting structure, a stopper rubber is formed by baking a stopper rubber on an upper surface of a clip having a hooking projection at a lower end which surrounds a proper position of a plurality of stacked leaf springs and prevents lateral displacement, and the stopper rubber is provided with the horizontal leaf. A stopper mounting structure for a horizontal leaf spring, wherein the clip is disposed so as to be located at a pivot portion for transmitting a reaction force of the spring to a vehicle body.

[0009]

According to the above-mentioned means, the stopper rubber is baked and integrally formed on the upper surface of the clip surrounding the leaf spring, so that when the leaf spring that has received the input is displaced by a predetermined amount, the stopper rubber is moved toward the vehicle body. It comes into contact with a member (for example, a suspension cross member) to exert a stopper function. The stopper rubber is molded integrally with the clip,
Moreover, this clip has a hook projection at the lower end.
So that the clip can be
Two functions, a downward shift prevention function and a stopper function
Will have. Further, the assembling work of the leaf spring is substantially the same as the conventional one, and even if the stopper function is added, the work is not particularly difficult.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a stopper mounting structure for a horizontal leaf spring according to the present invention will be described with reference to FIGS.

A plurality of clips 31 (shown in this embodiment)
Leaf spring 1 in which four sheets are stacked vertically
1. A member for surrounding the right place to prevent lateral displacement,
A pair of side portions 31 suspended from a plate-like upper portion 31a
b, and the lower end of the side surface portion 31b is substantially the same as the upper surface portion 31a.
A hooking projection 31c bent inward in parallel
ing. The upper surface portion 31a of the clip 31,
The surface facing the lower surface of the cross member 4 has a stopper
The bar 32 has been baked and thus the clip 31
Stopper rubber integrated with stopper rubber 32
It has a structure. Also, the mounting position of the clip 31
The stopper rubber 32 is the reaction force of the leaf spring 11
Is set to be a pivot part that transmits
, Upper surface portion 31a, side surface portion 31b, and hook protrusion 31
up, down, left and right of leaf spring 11 superimposed by c
The upper surface 31a of the clip 31 surrounding the
Fixed to the spring 11 with rivets 33
You. For this reason, when a predetermined input acts on the leaf spring 11, the stopper rubber 32 comes into contact with the suspension cross member 4 to transmit the reaction force of the leaf spring 11 to the vehicle body side, and the leaf eyeball 12 comes into contact with the stopper rubber 32. Swing around the fulcrum.

The operation of the above-described stopper rubber mounting structure for the horizontal leaf spring will be described below. In this structure, since the stopper rubber 32 is integrated with the clip 31, the stopper rubber 32 is simultaneously attached to the clip 31.
Is also completed. That is, it is not necessary to tighten the bolt in a narrow space as in the related art, and the assembling property is improved. In addition, four leaf splits
The clip 31 surrounding the ring 11 is mainly composed of a pair of sides.
In addition to the lateral displacement prevention function of the surface portion 31b, the upper surface 31a
Between the leaf spring 11 and the hooking projection 31c.
Prevents vertical misalignment
It also has functions. In addition, it was fixed to the suspension cross member.
When contacting leaf spring with stopper rubber
Conversely, a bake-formed leaf spring
When the top bar is brought into contact with the suspension cross member,
In either case, the same stopper function can be obtained, so that the merit of the structure of the present invention having good assemblability is great.

[0013]

[Effect of the Invention] Therefore, according to the stopper mounting structure of the horizontal leaf spring of the present invention described above, the stopper rubber is formed by baking and integrally forming the clip, and the clip is originally designed.
A stopper function is added to the misalignment prevention function to provide a composite function.
Therefore, the operation of attaching the stopper rubber is completed at the same time as the assembly of the leaf spring, so that there is an effect that the assemblability is improved.

[Brief description of the drawings]

FIG. 1 is a view showing one embodiment of a stopper mounting structure according to the present invention.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a diagram showing a suspension structure including a horizontal leaf spring.

FIG. 5 is a diagram showing a conventional structure.

FIG. 6 is a sectional view taken along line BB of FIG. 5;

[Explanation of symbols]

 4 Suspension cross member 6 Lower arm 11 Leaf spring 12 Leaf centerpiece 31 Clip31a Upper surface 31b side part 31c Hook projection  32 stopper rubber 33 rivet

Claims (1)

(57) [Scope of request for utility model registration] 1. A lateral leaf spring stopper mounting structure which is arranged in the vehicle width direction and connects independent left and right front wheel suspension links, and surrounds a proper place of a plurality of leaf springs to prevent lateral displacement. Lower end
A stopper rubber is baked and formed on the upper surface of the clip having the hooking projection , and the clip is arranged so that the stopper rubber is located at a pivot portion for transmitting a reaction force of the horizontal leaf spring to the vehicle body side. Features a horizontal leaf spring stopper mounting structure.