Title:
RACK-AND-PINION GEAR MECHANISM
Document Type and Number:
WIPO Patent Application WO/2003/036135
Kind Code:
A1
Abstract:
A rack-and-pinion gear mechanism comprising a rack forming member (21) having a rack (23), a pinion gear (32) releasably meshing with the rack (23) of the rack forming member (21), and an elastic member (35) which is opposed to the first tooth (23a) of the rack coming to contact at first with the tooth of the pinion gear (32) when meshing with the pinion gear (32), is in contact with a part of the rack forming member (21), and elastically deforms in response to the displacement of the rack forming member by the addendum abutment. The elastic member (35) comes into contact with a portion of the rack forming member (21) before and after the beginning of engagement between the rack (23) and the pinion gear (32) and is spaced during the engagement from the rack forming member (21). The mechanism further comprises a positioning means (31) for fixing the elastic member in a cantilever manner and for positioning the height of the free end of the elastic member. The tooth (23a) of the rack to contact at first with the tooth of the pinion gear when engaging with the pinion gear (32) is lower at its crest than the other teeth of the rack.
Inventors:
SASAKI EIJI (JP)
SHIRAHATA KEI (JP)
TANIGUCHI KAZUTOSHI (JP)
KUZUU TAKASHI (JP)
TATEHATA SHOJI (JP)
NAGAMI TETSUROU (JP)
MUROTANI KIICHIRO (JP)
MORITA HISASHI (JP)
WATANABE NAO (JP)
INATANI TAKESHI (JP)
TAKESHIMA MASAAKI (JP)
NIIKURA EIJI (JP)
SHIRAHATA KEI (JP)
TANIGUCHI KAZUTOSHI (JP)
KUZUU TAKASHI (JP)
TATEHATA SHOJI (JP)
NAGAMI TETSUROU (JP)
MUROTANI KIICHIRO (JP)
MORITA HISASHI (JP)
WATANABE NAO (JP)
INATANI TAKESHI (JP)
TAKESHIMA MASAAKI (JP)
NIIKURA EIJI (JP)
Application Number:
PCT/JP2001/009351
Publication Date:
May 01, 2003
Filing Date:
October 24, 2001
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
SASAKI EIJI (JP)
SHIRAHATA KEI (JP)
TANIGUCHI KAZUTOSHI (JP)
KUZUU TAKASHI (JP)
TATEHATA SHOJI (JP)
NAGAMI TETSUROU (JP)
MUROTANI KIICHIRO (JP)
MORITA HISASHI (JP)
WATANABE NAO (JP)
INATANI TAKESHI (JP)
TAKESHIMA MASAAKI (JP)
NIIKURA EIJI (JP)
SASAKI EIJI (JP)
SHIRAHATA KEI (JP)
TANIGUCHI KAZUTOSHI (JP)
KUZUU TAKASHI (JP)
TATEHATA SHOJI (JP)
NAGAMI TETSUROU (JP)
MUROTANI KIICHIRO (JP)
MORITA HISASHI (JP)
WATANABE NAO (JP)
INATANI TAKESHI (JP)
TAKESHIMA MASAAKI (JP)
NIIKURA EIJI (JP)
International Classes:
F16H19/00; F16H19/04; F16H1/16; F16H1/20; G11B17/04; (IPC1-7): F16H19/04; G11B17/04; G11B17/315
Foreign References:
| JPS4113134Y1 | ||||
| JPH01117977U | 1989-08-09 | |||
| JPS4914919Y1 | 1974-04-13 | |||
| JPH03100650U | 1991-10-21 | |||
| JPS63176857A | 1988-07-21 | |||
| JPS63176857A | 1988-07-21 |
Other References:
See also references of EP 1439326A4
Attorney, Agent or Firm:
Tazawa, Hiroaki (Kasumigaseki 3-chome Chiyoda-ku, Tokyo, JP)
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