JPH0629049Y2 - Automotive stabilizer mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a mounting structure for a stabilizer used in an automobile suspension.

(Prior Art) Generally, a suspension device (hereinafter referred to as a suspension) is provided between an automobile body and a wheel for connecting the two and absorbing the impact from the road surface. In recent years, this suspension is often used as an independent suspension system in which the left and right wheels swing up and down independently, so that the wheels can swing relative to the vehicle body on a suspension member attached to the floor of the vehicle body. One end of the suspension link is attached to, and the other end is attached to the wheels arranged on both left and right sides of the vehicle body. Further, one end of a shock absorber wound with a coil spring is attached near the mounting portion between the suspension link and the wheel, and the other end of the shock absorber is fixed to the vehicle body. As a result, the wheels are connected to the vehicle body, and the left and right wheels can swing independently of each other, and the wheels are always restored to their original positions by the coil spring and the shock absorber.

In such an independent suspension type suspension,
For example, as shown in FIG. 7 (B), when only the right wheel 4 swings upward, the vehicle body itself leans upward and to the right, which not only causes overturning but also causes a bad riding comfort. A vehicle body tilt control device 12 (hereinafter referred to as a stabilizer) is provided. The stabilizer 12 is composed of a torsion spring formed of a circular pipe material in a substantially U-shape, and both ends thereof are connected to the left and right suspension links 13 and 13, and as shown in FIG. A clip 15 is fixed to the suspension member so as to sandwich the stabilizer 12. Therefore, when the left and right wheels 4 and 4 simultaneously swing in the same direction, as shown in FIG. 7 (A), the mounting portions 16 and 16 of the clip 15 and the stabilizer 12 are rotated as fulcrums. On the other hand, as shown in FIG. 7 (B),
When only one of the wheels 4 swings with respect to the vehicle body, a twisting force acts on the wheel 4 in a direction against the swinging direction, whereby the wheel 4 is restored to its original position. Becomes

(Problems to be solved by the invention) However, in such a conventional stabilizer, both the left and right wheels can simultaneously swing in the same direction, and when one wheel swings, a restoring force is applied to the wheel. In order to make it work, the attachment portion of the stabilizer and the clip is at the position A shown in FIG.
However, there is a problem in that the degree of freedom in the shape of the suspension member is significantly reduced. Therefore, the layout of each part on the underfloor of the vehicle body is restricted, which is a big bottleneck in improving the efficiency of the vehicle body structure and productivity.

Further, in the case of the mounting position A as shown in FIG. 7, the entire stabilizer may slide in the left-right direction of the vehicle body, and an appropriate restoring force may not be applied to the wheels.

The present invention has been made in view of the above problems and drawbacks of the prior art, and provides a stabilizer capable of giving an appropriate restoring force to a wheel without limiting the mounting position of the stabilizer to a suspension member. The purpose is to

(Means for Solving the Problems) According to the present invention, a suspension member is attached to the floor of an automobile body, and wheels are attached to the left and right sides of the vehicle body through elastic members. A suspension link is movably interposed between the suspension member and the wheel, and a stabilizer having an elastic force against the rocking of the wheel is installed on both suspension links, and the wheels are the same. In a suspension for an automobile in which the stabilizer is attached to the suspension member so as to be capable of swinging in a direction, a spherical bulging portion bulging from the stabilizer main body is formed at a mounting portion of the stabilizer with the suspension member, Via a bush having an inner surface shape corresponding to the outer surface shape of the bulging portion and a spherical outer surface. The above object is achieved by an automobile stabilizer mounting structure in which a clip having an inner surface shape corresponding to the outer surface shape of the bush is attached to the suspension member while sandwiching the bulging portion.

(Operation) According to the present invention having such a configuration, since the mounting portion of the stabilizer to the suspension member is formed in a spherical shape, the stabilizer does not laterally shift regardless of the position of the mounting portion. , The bulging part slides in a spherical shape with the clip via the bush, and when the wheels attached to both ends of the stabilizer simultaneously swing in the same direction, both ends of the stabilizer rotate about the attachment part as a fulcrum. Will be done. On the other hand, when only one wheel swings, only the end of the stabilizer to which the wheel is attached twists while applying a restoring force to the wheel.

(Embodiment) A description will be given below based on an embodiment of the present invention shown in the drawings.

1 is a perspective view showing a stabilizer mounting structure according to an embodiment of the present invention, FIG. 2 is a partially exploded perspective view showing the stabilizer, and FIG. 3 is a sectional view taken along line III-III in FIG. Is.

First, as shown in FIG. 1, a suspension member 1 which constitutes a skeleton portion of a front suspension is provided with two side members 1a, 1a arranged side by side, and the two members 1a, 1a are laid by welding or the like. It has two cross members 1b and 1b. The suspension member 1 is fixed to the underfloor of the vehicle body by fastening members such as bolts and supports wheels, suspension links, and the like described later. For the suspension member 1,
One end of the lower suspension link 6 is rotatably attached to the vehicle body so that the wheel 4 can swing up and down, and the other end is connected to an axle (not shown) of the wheel 4. In addition, one end of the upper suspension link 5 is connected to the lower suspension link 6 on the vehicle body (not shown).
It is rotatably mounted in the same manner as the above, and the other end is connected to the wheel. This upper suspension link 5
The link 5 also swings so that the wheels 4 can swing vertically with respect to the vehicle body, and a shock absorber in which a coil spring 2 is wound between the link 5 and the vehicle body. By interposing 3, the wheel 4 is repulsed downward when the wheel 4 swings upward, that is, the vehicle body is pushed upward. In this embodiment, two shock absorbers 3 are provided on one side, but the present invention is not particularly limited to this, and one shock absorber 3 may be provided.

A stabilizer 7 connecting the left and right lower suspension links 6, 6 is attached to the links 6, 6 via control rods 17, 17. The stabilizer 7 is formed by forming a circular pipe material as shown in FIG. 2 into a substantially U-shape, and in this embodiment, shoulder portions 7a and 7a are further formed depending on the shape of the suspension member 1. is doing. The shoulder portion 7a is formed due to the layout of the suspension member 1 of the present embodiment, and the present invention is not limited to this. Mounting holes 7b, 7b for mounting to the control rod 17 are formed at both ends of the stabilizer 7,
The shoulder portions 7a, 7a are respectively formed with bulging portions 9, 9 having a spherical outer diameter larger than the outer diameter of the shoulder portion 7a. The bulging portion 9 can be formed by various methods as shown in FIGS. 5 (A) to (F). Fig. 5
(A) shows a connection made by welding after inserting a spherical member into the circular pipe material, and FIG. 5 (E) shows a connection made by brazing similarly. Further, FIG. 5 (B) is a product connected by caulking, FIG. 5 (C) is a product connected by a key etc. after fitting the concave and convex parts, and FIG. 5 (F) is a fastening member such as a bolt. It is connected by. Further, FIG. 5 (D) shows a bulging portion formed by subjecting a circular pipe material to bulging. In this way, the bulging portion 9
May be formed by a suitable method in view of its required strength or productivity, cost and the like.

As shown in FIG. 2, a bush 10 made of an elastic material having an inner diameter shape corresponding to the outer shape of the bulging portion 9 formed on the stabilizer 7 is provided between the clip 11 and the bulging portion 9 described later. Is installed in the. The bush 10
The outer shape of is also formed into a spherical shape like the bulging portion 9, and a clip 11 having an inner diameter shape corresponding to the outer shape of the spherical shape holds the bulging portion 9 and the bush 10, It is attached to the suspension member 1 by a fastening member such as a bolt. Therefore, as shown in FIGS. 2 to 3, the stabilizer 7 can rotate about the mounting portions 8a and 8b as a fulcrum without lateral displacement.

The operation of the present embodiment thus configured will be described in more detail with reference to FIGS. 4 (A) and 4 (B).

First, as shown in FIG. 4 (A), when the left and right wheels 4, 4 swing in the same direction (upward in FIG. 4), the bulging portion 9 and the bush Since the sliding surface with 10 is formed into a spherical shape, the stabilizer 7 is twisted while the outer surface of the bulging portion 9 and the inner surface of the bush 10 slide on the two mounting portions 8a and 8b, respectively. Rotate without. Therefore, the left and right vehicle wheels 4 and 4 receive only the elastic force of the shock absorber 3 wound with the coil spring 2, and the balance of the vehicle body is maintained.

On the other hand, as shown in FIG. 4 (B), when only one wheel (the right wheel in FIG. 4) slides upward, the stabilizer 7 connected to the wheel 4 is When the bulging portion 9 and the bush 10 slide, the end portion rotates about the mounting portion 8b as a fulcrum, which causes twisting of the entire stabilizer 7. Then, the elastic force of the twist acts on the right wheel 4 to restore the wheel 4 to its original position, thereby maintaining the balance of the vehicle body.

Further, regardless of the state of the wheels 4 and 4, since the bulging portion 9 is always held on the spherical surface by the clip 11, the stabilizer 7 is prevented from being laterally displaced, and the stabilizer 7 does not have an appropriate bullet. Repelling force can be applied to the wheels 4 and 4.

(Effect of the Invention) As described above, according to the present invention, the mounting portion of the stabilizer to the suspension member can be set at an arbitrary position, and the flexibility of the layout of the automobile suspension is expanded, It is possible to prevent lateral deviation of the stabilizer, and to obtain a practically great effect that the stability of the suspension and the riding comfort of the vehicle are improved.

[Brief description of drawings]

1 is a perspective view showing a stabilizer mounting structure according to an embodiment of the present invention, FIG. 2 is a partially exploded perspective view showing the stabilizer, and FIG. 3 is a sectional view taken along line III-III in FIG. 4 (A) and 4 (B) are perspective views for explaining the operation of the stabilizer of the present invention, FIG. 5 is a front view showing a method of forming a bulge portion according to the present invention, and FIG. 6 is a conventional stabilizer. 7A and 7B are partially exploded perspective views showing the operation of the conventional stabilizer. DESCRIPTION OF SYMBOLS 1 ... Suspension member, 2 ... Coil spring (elastic member), 3 ... Shock absorber (elastic member), 4 ... Wheel, 5 ... Upper suspension link, 6 ... Lower suspension link, 7 ... Stabilizer, 8 ... Attachment part, 9 ... Bulging part, 10 ... Bushing, 11 ... Clip.

Claims (1)

[Scope of utility model registration request] 1. A suspension member on the underfloor of an automobile body.
(1) is attached, the wheels (4) are attached to the left and right sides of the vehicle body through elastic members (2, 3), respectively, and the wheels (4, 4) are swingable relative to the vehicle body. Suspension link between the suspension member (1) and the wheel (4)
(5, 6) are respectively interposed, and a stabilizer (7) having an elastic force against the swing of the wheel (4) is installed on both suspension links (6, 6), and both wheels are A suspension for an automobile in which the stabilizer (7) is attached to the suspension member (1) such that the stabilizers (4, 4) can swing in the same direction, the attachment portion of the stabilizer (7) to the suspension member (1). In (8), a spherical bulging portion (9) bulging from the stabilizer (7) body is formed, and an inner surface shape and a spherical outer surface corresponding to the outer surface shape of the bulging portion (9) are formed. Through the bush (10) having the clip (11) having an inner surface shape corresponding to the outer surface shape of the bush (10), the bulging portion (9)
A structure for mounting a stabilizer for an automobile, which is configured to be sandwiched between and attached to the suspension member (1).