JPH1058933A - Suspension device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent generation of noise during travelling, by forming an upper mount mechanism for supporting an upper part of a strut rotatably to a body, by a bearing body to which the upper part of the strut is mounted and fixed, and an elastic member which is kept into contact with the bearing body. SOLUTION: In a suspension device, a set plate 5 is fixed through an adjust bolt 6, in a condition that a bearing of a bearing body of a ball bearing 1 is formed on an inner face of a holder 2a of an upper attaching plate 2, and a bearing face 2b formed on an inner face of a holder 2a has a recessed part 2b-1. A lower inner circumfernetial face continued to the recessed part 2b-1 is formed on a cylindrical part 2b-2, a compression ring 7 is inserted into a lower part of the cylindrical part 2b-1, and the bearing body is pressed to the recessed part 2b-1. Further a stopper plate 3 is installed at a rear face side of the upper attaching plate 2, and the upper attaching plate 2 is fixed by a lock bolt 4 in such manner that it presses the compression ring 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspension system for a vehicle, and more particularly to an upper mount mechanism for rotatably supporting an upper portion of a strut containing a shock absorber with respect to a vehicle body.

[0002]

2. Description of the Related Art Conventionally, various types of vehicle suspension devices are known. Among them, a strut type suspension supports an upper portion of a strut rotatably with respect to a vehicle body as shown in FIG. It has an upper mounting mechanism.

FIG. 2 shows the upper part of the suspension 10,
Rod 12 of strut 11 with built-in shock absorber
A rubber member 13 is fixed to the upper part of the vehicle body B. A metal mounting bracket 14 fixed to the outer periphery of the rubber member 13
To the rubber member 13
The strut 11 can rotate using the elasticity of the strut 11.

FIG. 3 shows another upper mount mechanism. This conventional upper mount mechanism uses a general-purpose spherical bearing 1. This spherical bearing 1 has a main body 1a having a shaft hole 1c and a bearing having an inner peripheral surface shape that matches the outer peripheral shape of the main body portion 1a. The rod 12 of the strut 11 shown in FIG.
c. That is, the bearing 1 is attached to the vehicle body B such that the shaft hole 1c is directed in the up-down direction. Reference numeral 16 denotes a coil spring.

More specifically, the spherical bearing 1 is provided inside the holder 2'a of the upper mounting plate 2 'to regulate the position above the spherical bearing 1, and the retaining plate 3 is brought into contact with the lower surface thereof. The retaining plate 3 is fixed to the upper mounting plate 2 ′ by the lock bolt 4. Normally, the upper mount unit configured as described above can be directly fixed to the vehicle body B. However, in order to enable the adjustment of the camber, the long holes of the set plate 5 having the pair of long holes 5a are formed. The set plate 5 is fixed to the vehicle body B by a bolt (not shown) passing through a mounting hole 5c via an adjusting bolt 6 inserted through the mounting bolt 5c. 3A, the right side is the front of the vehicle, the left side is the rear of the vehicle, the lower side is inside, and the upper side is outside.

[0006]

However, in the conventional upper mount mechanism of a vehicle suspension device using the spherical bearing 1 shown in FIG. 3, the spherical bearing 1 is loaded in a direction perpendicular to the shaft hole 1c of the main body 1a. Can exhibit high strength and abrasion resistance, but cannot exert such strength and abrasion resistance in the direction along the shaft hole 1c. Therefore, when the load of the vehicle body is repeatedly received, the bearing portion 1b in contact with the main body 1a can be provided. Wear occurs on the upper side.

For this reason, a gap is generated in the main body 1a of the spherical bearing 1 with respect to the bearing portion 1b, which may cause abnormal noise during running of the vehicle.

Further, the conventional spherical bearing 1 has a problem that the cost increases because the bearing portion 1b is formed in an inner peripheral surface shape that matches the outer peripheral surface shape of the main body 1a.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicle suspension apparatus which uses a bearing for an upper mount mechanism which does not generate abnormal noise during traveling, is low in cost, and has good assemblability. It is in.

[0010]

SUMMARY OF THE INVENTION In order to achieve the object of the present invention, a vehicle suspension device for rotatably supporting an upper part of a strut with a built-in shock absorber with respect to a vehicle body by an upper mount mechanism is provided.
The upper mount mechanism has a bearing body to which an upper part of a strut is fixedly mounted, a mounting plate including a holder having a bearing surface for restricting only upward movement of the bearing body, and a mounting plate mounted on a lower part of the holder. An elastic member arranged to be in contact with the bearing body;
A suspension plate fixed to the mounting plate such that the elastic member faces the suspension plate.

[0011] The upper mount mechanism may include a unit in which the bearing main body is mounted in the holder via the elastic member, and the retaining plate is fixed to the mounting plate by addressing the retaining plate to the elastic member. It can be fixed to the vehicle body via a set plate whose position can be adjusted inward and outward with respect to the vehicle.

[0012]

FIG. 1 shows an embodiment of a suspension device according to the present invention.

FIG. 1 (a) is a plan view of an assembled state, FIG. 1 (b) is a side view of FIG. 1 (a) as viewed from the front and rear, and FIG. 1 (c) is FIG. FIG. 1 (d) is a bearing body, and FIG.
Indicates a compression ring shown in FIG.

The suspension device according to the present embodiment has a pair of long holes 5a for allowing the upper mount unit to adjust the camber, similarly to the conventional example shown in FIG.
Is fixed to the scale 5d via an adjusting bolt 6 inserted into the elongated hole of the set plate 5 formed with the fixing plate 5, and the set plate 5 is fixed to the vehicle body B by a bolt (not shown) passing through the mounting hole 5c. doing. 1A, the right side is the front of the vehicle, the left side is the rear of the vehicle, the lower side is inside, and the upper side is outside.

The upper mount unit according to the present embodiment is provided with a strut 11 shown in FIG. 2 in a shaft hole 1c of a bearing body 1a having a convex R surface on the outer peripheral surface shown in FIG.
The point that the distal end of the rod 12 is mounted and fixed and the shaft hole 1c is used in the vertical direction is the same as the conventional example of FIG. 3, but the bearing of the bearing body 1a is attached to the holder 2a of the upper mounting plate 2. To form a ball bearing 1.

The bearing surface 2b formed on the inner surface of the holder 2a has a concave portion 2b-1 having a curved surface conforming to the R surface on the upper side of the bearing body 1a, and restricts the upward movement of the bearing body 1a. However, a lower inner peripheral surface following the concave portion 2b-1 is formed in a cylindrical portion 2b-2 having the same inner diameter. Therefore, the bearing body 1a falls down as it is because the cylindrical portion 2b-2 does not have a function of preventing it from falling downward. Therefore, in the present embodiment, the cylindrical portion 2b
A compression ring 7 made of urethane rubber is fitted into a lower portion of the holder 2a to press the bearing body 1a against the recess 2b-1 of the bearing surface 2b of the holder 2a. The retaining plate 3 is arranged on the back side of the upper mounting plate 2, and the retaining plate 3 is fixed to the upper mounting plate 2 by the lock bolt 4 so as to press the compression ring 7.

According to the structure of the present embodiment, even if a gap is formed between the bearing body 1a and the concave portion 2b-1 due to abrasion or the like, the bearing body 1a is connected to the compression ring 7a.
A downward load is received by the retaining plate 3 via the, so that no abnormal noise is generated by the metal touch during the running of the vehicle.

Further, since the bearing main body 1 can be removed simply by removing the retaining plate 3 and pulling out the compression ring 7, the assembling workability in which parts can be easily replaced can be improved.

Further, since a complicated bearing for machining is not required, the cost can be reduced.

[0020]

According to the first and second aspects of the present invention, even if a gap is formed between the bearing body and the bearing surface due to wear or the like, the bearing body prevents the downward load from coming off through the elastic member. As a result, no abnormal noise is generated by the metal touch during traveling of the vehicle.

Further, since the bearing main body can be removed simply by removing the retaining plate and removing the elastic member, the assembling operability such that parts can be easily replaced can be improved.

Further, since a complicated bearing for machining is not required, the cost can be reduced.

Further, since the camber can be adjusted by using the set plate, for example, when the vehicle body is distorted due to an accident or the like, even when the distortion cannot be completely removed, the camber is adjusted by adjusting the mounting position with respect to the set plate. be able to.

[Brief description of the drawings]

1A and 1B show an embodiment of the present invention, wherein FIG. 1A is a plan view of an assembled state, FIG. 1B is a side view of FIG. 1A as viewed from the front side, and FIG. Side view from the outside,
(D) shows the bearing body, and (e) shows the compression ring shown in (a).

FIG. 2 is a longitudinal sectional view of a conventional suspension device.

FIG. 3 shows another conventional suspension device, in which (a)
Is a plan view of an assembled state, (b) is a side view of the rear view from the front side of (a), (c) is a side view of the inside view of (a) from the outside, and (d) shows a bearing body.

[Explanation of symbols]

 1 ball bearing 1a bearing body 1c shaft hole 2 upper mounting plate 2a holder 2b bearing surface 2b-1 recess 2b-2 cylindrical portion 3 retaining plate 4 lock bolt 5 set plate 5a long hole 5c mounting hole 5d scale 6 adjusting bolt 7 compression Ring 11 strut 12 rod B body

Claims (2)

[Claims] 1. A vehicle suspension device for rotatably supporting an upper part of a strut with a built-in shock absorber with respect to a vehicle body by an upper mount mechanism, the upper mount mechanism comprising: a bearing body to which an upper part of the strut is mounted and fixed; A mounting plate provided with a holder having a bearing surface for restricting only upward movement of the bearing body, and an elastic member mounted on a lower portion of the holder and arranged to contact the bearing body,
A suspension plate fixed to the mounting plate so as to face the elastic member. 2. The upper mounting mechanism according to claim 1, wherein the upper mounting mechanism mounts the bearing main body in the holder via the elastic member, and directs the retaining plate to the elastic member. A suspension device for a vehicle, wherein the unit fixed to the vehicle is fixed to the vehicle body via a set plate capable of adjusting the position of the unit in and out of the vehicle.