Stabilizer bush

Patent metadata

Field	Value
Publication number	US-2022016952-A1
Application number	US-202017295531-A
Country	US
Kind code	A1
Filing date	May 29, 2020
Priority date	Jun 20, 2019
Publication date	Jan 20, 2022
Grant date	—

Abstract

Provided is a stabilizer bush that ensures improved durability. The stabilizer bush (10) comprises: a bush main body (11) formed from a tubular elastic body having a retention hole (12) through which the stabilizer bar (2) passes; a rigid body portion (14) that is fixed to the bush main body (11) and has a higher rigidity than the bush main body (11); and an elastic film (16) that comprises an elastic body and is in contact with a second surface (14b) of the rigid body portion (14). A part of the elastic film (16) is fitted into depressed portions (15a, 15b) that are depressed from the second surface (14b) to a first surface (14a) side.

First claim

1 . A stabilizer bush interposed between an installation surface of a vehicle body member and an inner surface of an arch-shaped fixture mounted on the vehicle body member, the stabilizer bush comprising:
a bush main body formed of a tubular elastic body having a retention hole through which a stabilizer bar passes, the bush main body having a part of an outer peripheral surface in contact with the inner surface of the fixture; a rigid body portion secured to a side of the installation surface of the bush main body, the rigid body portion having a rigidity higher than a rigidity of the bush main body; and an elastic film made of the elastic body interposed between the rigid body portion and the installation surface, wherein the rigid body portion includes a first surface with which the bush main body is in contact and a second surface arranged between the first surface and the installation surface, the second surface being in contact with the elastic film, a thickness from a surface in contact with the installation surface to a surface in contact with the second surface in the elastic film is thinner than a minimum dimension from the first surface to the second surface, and on the rigid body portion, a depressed portion is formed to be depressed from the second surface to a side of the first surface such that a part of the elastic film fits in the depressed portion.

2 . The stabilizer bush according to claim 1 ,
wherein the bush main body and the elastic film are integrally molded using a self-lubrication rubber that covers the rigid body portion.

3 . The stabilizer bush according to claim 1 ,
wherein the depressed portion opens to the first surface and is formed to pass through the rigid body portion, and the bush main body and the elastic film are integrally molded through the depressed portion.

4 . The stabilizer bush according to claim 1 , comprising
a projecting portion that projects from the elastic film to an opposite side of the rigid body portion to be inserted into a mounting hole formed on the installation surface, wherein the depressed portion includes first depressed portions provided on both sides in a central axis direction of the retention hole with respect to the projecting portion.

5 . The stabilizer bush according to claim 1 , comprising
a projecting portion that projects from the elastic film to an opposite side of the rigid body portion to be inserted into a mounting hole formed on the installation surface, wherein the depressed portion includes second depressed portions provided on both sides in a circumferential direction of the retention hole with respect to the projecting portion.

6 . The stabilizer bush according to claim 1 ,
wherein the first surface is formed into a planar shape perpendicular to a virtual plane including a central axis of the retention hole.

Assignees

• Toyo Tire Corp

Inventors

• Nakagaki Takahiro
• Saihara Yoshiyuki

Classifications

• F16F1/3876

  by means of inserts of more rigid material · CPC title

• F16F1/38

  with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin {, i.e. bushing-type (hydraulically-damped bushes F16F13/14; suppression of vibrations in rotating systems by making use of elastomeric spring members between rotating elements, driveline torque being transmitted therebetween F16F15/126, by making use of a dynamic damping mass attached to a rotating element by means of elastomeric springs F16F15/14; pivots per se F16C11/00; elastic or yielding bearings or bearing supports F16C27/00; parts of sliding-contact bearings, e.g. bushes F16C33/04)} · CPC title

• B60G2206/73

  Rubber; Elastomers · CPC title

• B60G2204/41043

  formed by a U-shaped external bracket · CPC title

• B60G21/0551 Primary

  Mounting means therefor · CPC title