Title:
VIBRATION ISOLATION MECHANISM FOR COIL SPRING AND BOOSTER USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2008/123598
Kind Code:
A1
Abstract:
A vibration isolation mechanism for a coil spring has a spring retainer (24) for
supporting a return spring (20). The spring retainer (24) is constructed from
a pedestal retainer (25) and a holding retainer (26). A seat coil (20a) of the
return spring (20) is elastically and firmly held between a holding section (30a)
of the pedestal retainer (25) and a holding section (31a) of the holding retainer
(26). Because of the structure above, vibration of the return spring (20) is
forcibly damped and, as a result, occurrence of abnormal sound due to the vibration
of the return spring (20) is suppressed even if there is a micro-gap between the
seat coil (20a) and a second coil portion of the return spring (20).
Inventors:
YAMASHITA NOBUYUKI (JP)
Application Number:
PCT/JP2008/056730
Publication Date:
October 16, 2008
Filing Date:
March 28, 2008
Export Citation:
Assignee:
BOSCH CORP (JP)
YAMASHITA NOBUYUKI (JP)
YAMASHITA NOBUYUKI (JP)
International Classes:
F16F1/12; B60T13/52
Foreign References:
| JPS6144046U | 1986-03-24 | |||
| JP2006077904A | 2006-03-23 | |||
| JP2004162901A | 2004-06-10 | |||
| JP2004216922A | 2004-08-05 | |||
| JP2006341790A | 2006-12-21 | |||
| JP2006077904A | 2006-03-23 |
Other References:
See also references of EP 2131058A4
Attorney, Agent or Firm:
AOKI, Kenji et al. (Ueno-Suzuki Bldg. 7th Floor16-3, Ueno 3-Chom, Taito-Ku Tokyo 05, JP)
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