Title:
TWO DIRECTION TAPER CLUTCH AND RECLINING SEAT
Document Type and Number:
Japanese Patent JP3794885
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a two direction taper clutch causing no play in a lock condition and having large rigidity for torque load.
SOLUTION: A cam groove 11 forming a wedge-shaped space between a conical face 10 formed at outer periphery of an inner ring 3 and a cylindrical face 9 provided at inner periphery of an outer ring 2 is formed on the conical face 10. A tapered roller 16 is stored in a pocket 15 of a holder 4 assembled between the outer ring 2 and the inner ring 3. An operation mechanism which presses the holder 4 by a corrugated spring 26 in the direction in which the tapered roller 16 moves using its small end face as a front side and moves the holder 4 in the axial direction against elasticity of the corrugated spring 26 is provided. A spring member 17 is assembled between the holder 4 and the tapered roller 16 to press a large end face of the tapered roller 16, and the whole tapered roller 16 come into line-contact with a bottom face of the cam groove 11 and the cylindrical face 9 of the outer ring 2, respectively, when the holder 4 moves in the axial direction by pressing the corrugated spring 26 to eliminate play and increase the rigidity for torque load.
Inventors:
Masahiro Kurita
Masahiro Kawai
Masahiro Kawai
Application Number:
JP32699499A
Publication Date:
July 12, 2006
Filing Date:
November 17, 1999
Export Citation:
Assignee:
ntn corporation
International Classes:
A47C1/027; F16D15/00; B60N2/22; F16D13/32; F16D41/06; (IPC1-7): F16D13/32; A47C1/027
Domestic Patent References:
| JP60004630A | ||||
| JP11264426A |
Attorney, Agent or Firm:
Bunji Kamada
Higashio Masahiro
Torii Kazuhisa
Higashio Masahiro
Torii Kazuhisa
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