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Patent Searching and Data


Title:
SYNCHRONIZATION DEVICE FOR TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2005/095814
Kind Code:
A1
Abstract:
A synchronization device for a transmission capable of increasing synchronization performance by self-servo action, comprising a thrust piece (26) engaged with the groove (16e) of a sleeve (16), axially pressed from the sleeve (16), and transmitting a friction torque produced in a synchronization ring (24) in a process for pressing the chamfers (24e) and (24f) of the synchronization ring (24) to the slopes (12g), (12h), (12i), and (12j) of a hub (12). The thrust piece (26) further comprises a restriction means restricting the relative rotation of the synchronization ring (24) to the hub (12) after a synchronous action performing by axially pressing the synchronization ring (24) is completed. Thus, the deterioration of operating feeling can be avoided.

Inventors:
HIRAIWA KAZUYOSHI (JP)
Application Number:
PCT/JP2005/006889
Publication Date:
October 13, 2005
Filing Date:
April 01, 2005
Export Citation:
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Assignee:
KYOWA METAL WORKS CO LTD (JP)
HIRAIWA KAZUYOSHI (JP)
International Classes:
F16D11/06; F16D23/06; (IPC1-7): F16D23/06; F16D11/06
Foreign References:
JPH094653A1997-01-07
JPH01120432A1989-05-12
JPH09500705A1997-01-21
US2555961A1951-06-05
Attorney, Agent or Firm:
Kikutani, Kimio (Shuwa Kioicho Park Bldg. 4F 3-6, Kioi-ch, Chiyoda-ku Tokyo 94, JP)
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