Title:
SELF-LOCKING CLUTCH
Document Type and Number:
WIPO Patent Application WO/2011/145388
Kind Code:
A1
Abstract:
Disclosed is a self-locking clutch comprising a fitting structure such that a worm gear and a shaft section which is formed integrally therewith are supported in such a way as to be capable of undergoing displacement in a direction along a first shaft center, that a drive shaft which transmits the rotational force of an actuator to the shaft section is supported coaxially with the first shaft center in such a way as to be incapable of moving in a direction along the first shaft center, and that one end of the shaft section is fitted into or over one end of the drive shaft in such a way as to be capable of undergoing displacement in a direction along the first shaft center. Also, the self-locking clutch is provided with a rotating body which rotates integrally with either the shaft section or the drive shaft; braking members one of which, when the shaft section undergoes displacement in a direction along the first shaft center due to an external force which acts on a wheel gear, comes into contact with the rotating body, thereby applying a braking force due to friction; and a guide mechanism whereby in a state where a driving force is transmitted to the wheel gear from the worm gear, the shaft section is held in a neutral position in the direction of the first shaft center, resulting in the rotating body being separated from the braking member that has been in contact with the rotating body, and whereby in a state where an external force acts on the wheel gear, the shaft section is caused to undergo displacement in one of the directions along the first shaft center, resulting in the rotating body being brought into contact with one of the braking members, with the consequence that a braking force is generated.
Inventors:
HASHIZUME TAKESHI (JP)
Application Number:
PCT/JP2011/056201
Publication Date:
November 24, 2011
Filing Date:
March 16, 2011
Export Citation:
Assignee:
AISIN SEIKI (JP)
HASHIZUME TAKESHI (JP)
HASHIZUME TAKESHI (JP)
International Classes:
F16D13/22; F16D13/24; F16D63/00; F16H1/16; F16H35/00
Foreign References:
| JP2010101419A | 2010-05-06 | |||
| JPH0771491A | 1995-03-17 |
Attorney, Agent or Firm:
KITAMURA SHUICHIRO (JP)
Shuichiro Kitamura (JP)
Shuichiro Kitamura (JP)
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Claims: