JP2002347420A - Upper mount mechanism of vehicle suspension device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the cost of a vehicle suspension device by making it possible to replace only a damaged part by making each section of the upper mount mechanism of the vehicle suspension device detachable and absorb shocks and adjust a camber efficiently by securing the displacement quantity of an elastic member. SOLUTION: The support metal fixture 13 of a bearing 12 for supporting a piston rod 11 is supported for assembling a ring-like elastic cylindrical body 9 fitted in a bearing mounting cylinder 3 for compression and a ring-like ring 10, and a ring-like recessed section 14 is arranged in the internal peripheral section of the elastic cylindrical body 9 above the support metal fixture 13 to prevent the elastic cylindrical body 9 in a bumping state from being damaged, and a ring-like recessed section 15 is arranged in the external peripheral section of the elastic cylindrical body 9, and the large quantity of displacement of the recessed section 15 is secured for improving shock absorbing action.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an improvement in an upper mount mechanism in a vehicle suspension device.

[0002]

2. Description of the Related Art As an upper mounting mechanism of a vehicle suspension system, an upper end portion of a suspension rod is supported by a bearing and fixed to a vehicle body by a mounting plate via an elastic member provided on the supporting portion.
JP-A-21, JP-A-9-1119474, JP-A-9-119474
Japanese Patent Application Laid-Open No. 119495/1992 and Japanese Patent Application Laid-Open No. 10-58933.

[0003]

Among the above known methods, the former three methods have an elastic member integrally bonded to a mounting plate, an inner cylinder and the like. In the event of damage, all of these must be replaced and there are drawbacks that add cost. In the latter method, since the elastic ring only supports the lower part of the bearing, the impact transmitted to the vehicle body cannot be sufficiently absorbed and reduced, and there is a defect that the ride comfort is impaired.

[0004] In view of these circumstances, the present invention provides a vehicle suspension device that enables and facilitates replacement of parts when each part of an elastic member is damaged and improves the effect of absorbing and mitigating impact by the elastic member. It is an object of the present invention to provide an upper mounting mechanism.

[0005]

According to the present invention, in order to achieve the above object, a bearing mounting cylinder and a fixing plate provided below the bearing mounting cylinder are detachably attached to a lower portion of the mounting plate. And an annular elastic tubular body and an elastic ring are fitted in a compressed state between a fixed plate and an inner peripheral portion of the bearing mounting barrel in a compressed state, and a piston is provided on a lower half portion of the elastic tubular body. A support bracket for a bearing that supports an upper end portion of a rod is fixed, and a protruding caulking portion of the support bracket for the bearing is formed to be supported by the elastic ring, thereby simplifying replacement of damaged parts. The present invention is intended to reduce the load with respect to the repetitive load and to improve the vehicle operation, and to improve the support of the bearing in the annular elastic cylindrical body. The upper inner peripheral surface of the metal fitting is formed as an annular concave part to prevent damage to the upper end of the elastic tubular body in the bump state, and to generate abnormal noise due to metal interference between the bearing mounting cylinder and the bearing support fitting in the bump and revamp state. Can be more reliably prevented.

Further, when the annular concave portion is formed on the outer peripheral surface of the elastic cylindrical body, a large displacement amount of the elastic cylindrical body can be secured, and the shock absorbing efficiency applied to the vehicle body is improved to improve the riding comfort. be able to.

Further, the mounting hole of the mounting plate is formed as a long hole so that the fixing position of the bearing mounting cylinder can be adjusted and fixed along the long hole, so that it is possible to easily cope with the inclination of the piston rod and to adjust the camber. Can be performed more easily.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the accompanying drawings.
A bearing mounting cylinder 3 integrally formed with a mounting flange 2 outside the lower end is fitted into a mounting hole 5 of a mounting plate 4 fixed to a vehicle body (not shown) by fitting the cylindrical portion from below to the mounting flange 2. Are tightly attached by a mounting plate 4 and a dish-shaped fixing plate 7 having a fitting hole 6 formed therein, and are detachably fixed by mounting screws 8.

An annular elastic cylindrical body 9 and an elastic ring 10 are vertically overlapped between the locking edge 1 of the bearing mounting cylinder 3 and the fixing plate 7 so as to overlap the upper half of FIG. An outer periphery of a bearing 12 that supports the upper end of a piston rod 11 is fitted to the gap a before the attachment in a compressed state (the amount of compression in FIG. 1) and is supported on the lower inner half of the elastic tubular body 9. A support fitting 13 attached to the support portion is integrally fitted. In particular, a caulking portion 13 ′ of a bearing provided at a lower end of the support fitting 13 projects from a lower end of the elastic tubular body 9, and It is supported by a support receiving portion 10 ′ formed on the inner peripheral portion. Further, an annular concave portion 14 is formed on an inner peripheral portion of the elastic cylindrical member 9 above the support fitting 13 and an outer peripheral portion of the elastic cylindrical member 9. And an annular concave portion 15 are respectively formed.

A fastening nut 16 and a collar 17 are provided on the upper and lower portions of the bearing 12 of the piston rod 11, respectively. Reference numeral 18 in FIG.

In the embodiment shown in FIG. 6, the shape of the mounting hole of the mounting plate 4 is formed as an elongated hole 5 ', and elongated grooves 5 "and 5" are formed on both sides thereof. A plurality of adjusting holes 3 ', 3' ..., 7 ', 7' ... are provided in parallel on both sides of the mounting plate 7 and the fixing plate 7, respectively.
8 allows the position of fixing the bearing mounting tube 3 to be arbitrarily adjusted and fixed along the long hole 5 ', so that the camber adjustment can be further facilitated.

Since the embodiment of the present invention is configured as described above, as shown in FIGS. 2 and 3, the inclination or vertical load acting on the piston rod 11 due to the impact transmitted to the moving vehicle body is reduced. A large amount of elastic displacement is secured by an elastic cylindrical body 9 having an annular concave portion 14 and an annular concave portion 15 fitted in the bearing mounting cylinder 3 and the fixing plate 7 and an annular concave portion 15 and the elastic ring 10, thereby absorbing and relaxing the impact on the mount and bumps. And to prevent the generation of abnormal noise in the rebump state. In particular, when parts such as the bearing 12, the elastic tubular body 9 and the elastic ring 10 are damaged, only the damaged parts need to be replaced and replaced. Except for the mounting plate 4 having a different shape for each vehicle type, it can be used as a common part. Also, as shown in FIG.
When adjusting the position with respect to the piston rod 1
The swing angle of 1 can be sufficiently secured, and the camber adjustment is easy.

[0013]

According to the present invention, since each part of the upper mount mechanism is formed in an assembling manner, even if a part is damaged, it is sufficient to replace only the damaged part without replacing the whole part. Since all can be used as common parts, the cost can be significantly reduced.Moreover, since the elastic body is divided into an elastic cylindrical body and an annular ring in the bearing mounting cylinder and fitted by compression, It is possible to absorb impact while reducing the load while securing sufficient strength against repeated load in the direction, improve the operability of the vehicle, and further increase the elastic part, so that the piston rod Can be fully supported.

In the present invention, since the inner peripheral surface of the elastic cylindrical body above the support bracket of the bearing is formed as an annular concave portion, the upper end portion of the elastic cylindrical body is excessively bulged by a load in the bump state to support. It is possible to prevent damage caused by being caught between the upper end of the bracket and the bearing mounting cylinder, and to prevent generation of abnormal noise due to interference between the support bracket and the bearing mounting cylinder in the rebump state.

Further, when an annular concave portion is also formed on the outer periphery of the elastic tubular body, a large amount of displacement of the elastic tubular body can be secured, and the shock transmitted to the vehicle body can be absorbed and alleviated more efficiently to improve ride comfort. Can be improved.

In the present invention, when a long hole is formed in the mounting plate so that the position of the bearing mounting cylinder can be adjusted and fixed along the long hole, the camber adjustment corresponding to the inclination of the piston rod can be further improved. It can be easily performed.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view of a bearing mounting cylinder according to the present invention at the time of mounting and before mounting.

FIG. 2 is an explanatory diagram of the operation.

FIG. 3 is an explanatory diagram of the operation.

FIG. 4 is an exploded perspective view of the main part.

FIG. 5 is an exploded perspective view of the another embodiment.

[Explanation of symbols]

 Reference Signs List 3 bearing mounting tube 4 mounting plate 5 mounting hole 7 fixing plate 9 elastic cylindrical body 10 elastic ring 11 piston rod 12 bearing 13 support fitting 14 annular concave portion 15 annular concave portion

Claims (4)

[Claims] 1. A bearing mounting cylinder and a fixing plate provided below the bearing mounting cylinder are removably fixed to a mounting hole of a mounting plate fixed to a vehicle body at a lower portion of the mounting plate, and a fixing plate is fixed to an inner peripheral portion of the bearing mounting cylinder. A ring-shaped elastic cylindrical body and an elastic ring are overlap-fitted in a compressed state between them, and a support bracket of a bearing for supporting an upper end of a piston rod is fixed to a lower half of the elastic cylindrical body, An upper mount mechanism for a vehicle suspension device, wherein a protruding caulked portion of a support bracket of the bearing is formed to be supported by the elastic ring. 2. The upper mount mechanism for a vehicle suspension device according to claim 1, wherein an annular concave portion is formed on an upper inner peripheral surface of the annular elastic tubular body above the support bracket of the bearing. 3. The upper mount mechanism for a vehicle suspension device according to claim 1, wherein an annular concave portion is formed on an outer peripheral surface of the annular elastic tubular body. 4. The upper mounting mechanism for a vehicle suspension device according to claim 1, wherein the bearing mounting cylinder is adjustably fixed to the mounting hole of the mounting plate.