RACK BUSH AND STEERING MECHANISM

Title:

RACK BUSH AND STEERING MECHANISM

Document Type and Number:

WIPO Patent Application WO/2019/078254

Kind Code:

A1

Abstract:

Provided is a rack bush capable of reducing an effect on the feeling of a steering operation. A rack bush (1) comprises: a bush body (2) that is accommodated in a cylindrical housing (4), supports a load exerted on a rack bar (5) while allowing the rack bar (5) to move in the direction of an axis (O), and can be extended and retracted in a radial direction; and an elastic ring (3) mounted on the bush body (2). The bush body (2) is formed in the circumferential direction on an outer peripheral surface (22) and has a mounting groove (28) for mounting the elastic ring (3). In the mounting groove (28), an axis P deviates from the axis (O) of the bush body (2). This configuration allows the formation of an elastic ring protruding part (10), in which the elastic ring (3) protrudes greatly from the outer peripheral surface (22) of the bush body (2), and an elastic ring embedded part (11), in which the elastic ring 3 is embedded in the outer peripheral surface (22) of the bush body (2).

More Like This:

WO/2013/062229	RACK BAR SUPPORT DEVICE OF A STEERING GEAR
JP2014227028	VEHICLE STEERING DEVICE

Inventors:

IKEYAMA GAKU (JP)
KUWAGAKI JUNYA (JP)
KIKUCHI HIROYUKI (JP)
SEKINE TOSHIHIKO (JP)
NAKAGAWA NOBORU (JP)
SAITO KATSUNORI (JP)
SHIMAYAMA KOSUKE (JP)

Application Number:

PCT/JP2018/038666

Publication Date:

April 25, 2019

Filing Date:

October 17, 2018

Export Citation:

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Assignee:

MAZDA MOTOR (JP)
OILES INDUSTRY CO LTD (JP)

International Classes:

B62D3/12; F16C17/02; F16C25/04; F16C27/06; F16C29/02

Domestic Patent References:

WO2014196582A1

2014-12-11

Foreign References:

JP2015137721A	2015-07-30
US4215591A	1980-08-05
JP2008151289A	2008-07-03
JPH04135874U	1992-12-17