JPH09296838A - Elastic support device - Google Patents

Abstract

(57) Abstract: A low spring constant is provided when a large external force is not applied to a supported body, and a large spring constant is provided when a large external force is applied to a supported body. A rubber tubular member (15) fitted in a cup-shaped member (14) has a thick portion (15a) whose outer peripheral surface abuts on the inner peripheral surface of the cup-shaped member (14) in an assembled state and a cup-shaped member (14). It is composed of a medium-thickness portion 15b whose outer peripheral surface abuts on the inner peripheral surface of the cup-shaped member 14 when a load of a predetermined amount or more is applied, and a thin-walled portion 15c whose outer peripheral surface is always separated from the cup-shaped inner peripheral surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elastic support device for elastically supporting a support such as an actuator of an antilock brake device for a vehicle on a support such as a vehicle body.

[0002]

2. Description of the Related Art An elastic support device for supporting an actuator of an antilock brake device for a vehicle on a vehicle body is provided with a fixture for coupling with a support body in a state where the axis line is substantially horizontal, and the axis line is made substantially horizontal. And a cup-shaped member that is fixed to the support body by means of a cup-shaped member, and a plurality of axially extending ridges formed on the outer periphery of the pin-shaped member that are supported by the inner periphery of the cup-shaped member, and one end of which is fixed to the supported body. And a tubular member made of rubber supported by. Due to the elasticity of the ridges,
Vibrations during operation of the actuator are attenuated, and noise inside the vehicle generated by transmission of vibrations during operation of the actuator into the vehicle interior is reduced.

[0003]

In order to reduce the vehicle interior noise generated by the transmission of the vibration during the operation of the actuator into the vehicle interior, it is preferable that the hardness of the ridge is low.
If the hardness of the ridge is set low, the posture of the actuator cannot be maintained against a large external force applied to the actuator when traveling on an uneven road surface, and it is necessary to avoid interference with other devices around the actuator. It is necessary to increase the space for avoiding interference. On the contrary, if the hardness of the ridge is increased to increase the ability to maintain the posture of the actuator, the vibration during the operation of the actuator is easily transmitted to the vehicle interior, and the noise in the vehicle interior is increased. It is an object of the present invention to provide an elastic support device capable of damping the vibration of the supported body during its operation and maintaining the posture of the supported body against a large external force applied to the supported body.

[0004]

The elastic support device according to the invention of the present application according to the above-mentioned object is provided with a fixture for coupling with the support in a state where the axis is substantially horizontal, and the axis is substantially horizontal. In the elastic supporting device, a rubber tubular member is interposed between the inner peripheral surface of the cup-shaped member fixed to the support and the outer peripheral surface of the pin whose one end is fixed to the supported body. In the assembled member, the outer peripheral surface contacts the inner peripheral surface of the cup-shaped member in an assembled state, and the cup-shaped member or the pin has an outer peripheral surface whose outer peripheral surface contacts the inner peripheral surface of the cup-shaped member. And a thin-walled portion whose outer peripheral surface is always separated from the cup-shaped inner peripheral surface.

In the elastic supporting device having such a structure, the vibration of the supported body during operation is damped by the elasticity of the thick portion of the rubber tubular member. By setting the hardness of the thick portion to be low, the vibration of the supported body during operation is favorably damped.
Further, when a load larger than a predetermined value is applied to the supported body, elastic deformation of the thick portion causes the middle portion to come into contact with the inner circumference of the cup-shaped member so that the supported portion is elastic by both the thick portion and the medium portion. Supported. By setting the hardness of the medium thickness portion from the viewpoint of maintaining the posture of the supported body, the posture of the supported body is maintained in a good condition.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of an elastic supporting device of the invention according to this application will be described below with reference to the drawings. FIG. 1 is a transverse sectional view of the first embodiment, and FIG. 2 is a sectional view taken along the line AA in FIG. 1 and 2, the elastic support device 10 includes a bracket 11 fixed to a vehicle body, a nut 12 and a nut 12.
It is composed of a cup-shaped member 14 in which a bolt 13 fixed to the bottom wall is fixed to a bottom wall, and a rubber tubular member 15 fitted in the cup-shaped member 14. The inner periphery of the tubular member 15 supports the outer periphery of the pin 17, which has one end press-fitted and fixed to the body 16 of the actuator of the antilock brake device. The tubular member 15 includes four thick wall portions 15a extending in the axial direction, four medium wall portions 15b extending in the axial direction between the thick wall portions 15a, a thick wall portion 15a and a medium wall thickness. It is composed of eight thin-walled portions 15c extending axially between the portions 15b. The height of the thick portion 15a is always set so as to elastically contact the inner periphery of the cup-shaped member 14, and the hardness of the thick portion 15a is set so as to satisfy the requirement of sound propagation. Medium meat part 15
The height of b is set so that a predetermined gap is present with respect to the inner circumference of the cup-shaped member 14 as shown in FIG.
The hardness of 5b is set so as to satisfy the requirement of the posture maintainability of the body 16. The height of the thin portion 15c is set so that it is always separated from the inner circumference of the cup-shaped member 16.

Only the four thick portions 15a are cup-shaped members 1
In the normal state in which the cylindrical member 15 is in contact with the inner periphery of the cylindrical member 15, the load applied to the body 16 in the radial direction of the tubular member 15 and the displacement due to the load have a small spring constant. Therefore, the vibration when the actuator is operated is well damped by the elastic support device 10.

When a load larger than a predetermined value is applied to the body 16 in the radial direction of the tubular member 15, the thick portion is largely elastically deformed and is positioned in the direction opposite to the load acting direction.
The medium-weight portion 1 in which two to two medium-weight portions 15b abut the inner circumference of the cup-shaped member 14 and the thick-walled portion 15a and the cup-shaped member 14
The body 16 is elastically supported by 5b. The relationship between the load and the displacement in this state is the relationship of the large spring constant. Therefore, a large displacement of the body 16 is suppressed, and the body 16
Posture is maintained.

FIG. 3 is a cross sectional view of the second embodiment.
In the second embodiment, the tubular member 115 includes 16 thick-walled portions 115a extending in the axial direction and eight medium-walled portions 115b extending in the axial direction between the thick-walled portions 115a. , And eight thin-walled portions 115c extending in the axial direction between adjacent thick-walled portions 115a. Thick part 115a, medium part 115b
The height and hardness of each are set in the same manner as in the first embodiment, and the height of the thin portion 115c is also set in the same manner as in the first embodiment. Also in the second embodiment, the same operational effect as in the first embodiment can be obtained.

FIG. 4 is a cross-sectional view of the third embodiment,
FIG. 5 is a vertical sectional view of the tubular member in FIG. In this third embodiment, the tubular member 215 extends in the axial direction 8
16 thin-walled portions 21 extending in the axial direction between the thin-walled portions 215c and the end portions between adjacent thin-walled portions 215c.
5a and eight medium-thickness portions 215b extending in the axial direction between the thick portions 215a in the axial direction. Thick part 21
The height and hardness of each of 5a and the medium-thickness portion 215b are set in the same manner as in the case of the first embodiment.
The height of c is also set as in the case of the first embodiment. Also in the third embodiment, the same operational effect as in the first embodiment can be obtained.

[0011]

The elastic supporting device according to the invention of this application is
A thick portion in which the outer peripheral surface of the rubber tubular member is in contact with the inner peripheral surface of the cup-shaped member in the assembled state, and the outer peripheral surface of the cup-shaped member or the pin is a cup-shaped member when a predetermined load or more is applied. By virtue of being composed of a medium-thickness portion that abuts the inner peripheral surface and a thin-walled portion whose outer peripheral surface is always separated from the cup-shaped inner peripheral surface, it is possible to damp vibrations of the supported body such as an actuator during operation and The posture of the supported body can be maintained against a large external force applied to the support body.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a first embodiment of an elastic support device according to the invention of this application.

FIG. 2 is a sectional view taken along the line AA in FIG.

FIG. 3 is a transverse cross-sectional view of a second embodiment of an elastic support device according to the invention of this application.

FIG. 4 is a cross-sectional view of a third embodiment of an elastic support device according to the invention of this application.

5 is a vertical cross-sectional view of the tubular member in FIG.

[Explanation of symbols]

 10 ... Elastic support device 11 ... Bracket 12 ... Nut 13 ... Bolt 14 ... Cup-shaped member 15, 115, 215 ... Rubber tubular member 15a, 115a, 215a ... Thick part 15b, 115b, 215b ... Medium part 15c, 115c, 215c ... Thin part 16 ... Actuator body 17 ... Pin

 ─────────────────────────────────────────────────── --- Continuation of the front page (72) Inventor Seiichi Kojima 2-1-1 Asahi-cho, Kariya city, Aichi Prefecture Aisin Seiki Co., Ltd. (72) Inventor Masahiro Matsuo 2-chome, Asahi-cho, Kariya city, Aichi prefecture Address Aisin Seiki Co., Ltd. (72) Inventor Koichi Kondo 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Automobile Co., Ltd.

Claims (1)

[Claims] 1. An inner peripheral surface of a cup-shaped member for fixing to a support body by providing a fixture for coupling with a support body in a state where the axis line is substantially horizontal on the bottom wall, and fixing the fixture to the support body. In an elastic supporting device having a rubber tubular member interposed between the pin having one end fixed and an outer peripheral surface of the pin, the rubber tubular member is
A thick wall portion whose outer peripheral surface abuts the inner peripheral surface of the cup-shaped member in an assembled state, and an outer peripheral surface whose inner peripheral surface is the inner peripheral surface of the cup-shaped member when a predetermined load or more is applied to the cup-shaped member or the pin An elastic support device, characterized in that the elastic support device comprises a medium-thickness portion that comes into contact with the inner peripheral surface and a thin-walled portion whose outer peripheral surface is always separated from the cup-shaped inner peripheral surface.