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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).

Inventors:
IKEYAMA, Gaku (3-1 Shinchi, Fuchu-cho, Aki-gu, Hiroshima 70, 〒7308670, JP)
KUWAGAKI, Junya (3-1 Shinchi, Fuchu-cho, Aki-gu, Hiroshima 70, 〒7308670, JP)
KIKUCHI, Hiroyuki (8 Kirihara-cho, Fujisawa-sh, Kanagawa 11, 〒2520811, JP)
SEKINE, Toshihiko (8 Kirihara-cho, Fujisawa-sh, Kanagawa 11, 〒2520811, JP)
NAKAGAWA, Noboru (8 Kirihara-cho, Fujisawa-sh, Kanagawa 11, 〒2520811, JP)
SAITO, Katsunori (8 Kirihara-cho, Fujisawa-sh, Kanagawa 11, 〒2520811, JP)
SHIMAYAMA, Kosuke (8 Kirihara-cho, Fujisawa-sh, Kanagawa 11, 〒2520811, JP)
Application Number:
JP2018/038666
Publication Date:
April 25, 2019
Filing Date:
October 17, 2018
Export Citation:
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Assignee:
MAZDA MOTOR CORPORATION (3-1 Shinchi, Fuchu-cho Aki-gu, Hiroshima 70, 〒7308670, JP)
OILES CORPORATION (1-2-70 Konan, Minato-ku Tokyo, 75, 〒1080075, JP)
International Classes:
B62D3/12; F16C17/02; F16C25/04; F16C27/06; F16C29/02
Domestic Patent References:
WO2014196582A12014-12-11
Foreign References:
JP2015137721A2015-07-30
US4215591A1980-08-05
JP2008151289A2008-07-03
JPH04135874U1992-12-17
Attorney, Agent or Firm:
OHZEKI, Mitsuhiro (13-14-206, Hiranuma 1-Chome Nishi-ku, Yokohama-sh, Kanagawa 23, 〒2200023, JP)
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