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Title:
AXIAL COUPLING DEVICE AND TORQUE LIMITER
Document Type and Number:
Japanese Patent JP2010133474
Kind Code:
A
Abstract:

To provide an axial coupling device in which the frictional engagement between a cylindrical member and a shaft member is more certain and firm, and an axial end section of fluid pressure expansion chamber is hard to be damaged.

A plurality of cylindrical hydraulic pressure expansion chambers 31, which axially exist in extension so as to locate with an axial space, are formed in a cylindrical member 1. Furthermore, based on a hydraulic pressure of oil filled in the hydraulic pressure expansion chamber 31, a cylindrical inner circumference surface 24 of the cylindrical member 1 is pressed to a cylindrical periphery surface 20 of a shaft member 2 through a cylindrical gripping section 43 of an annular member 3 by reducing in diameter a cylindrical inner circumference surface 24 of the cylindrical member 1. Additionally, in the gripping section 43, a radial wall thickness of a thin wall section 58, located between axially adjacent hydraulic pressure expansion chambers 31, is set to be smaller than a radial wall thickness of a thick wall section 59 overlapping radially in the hydraulic pressure chamber 31.

COPYRIGHT: (C)2010,JPO&INPIT


Inventors:
ISHIBASHI NOBUYUKI
NISHIGUCHI YOSHIKI
Application Number:
JP2008308949A
Publication Date:
June 17, 2010
Filing Date:
December 03, 2008
Export Citation:
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Assignee:
JTEKT CORP
International Classes:
F16D1/091; F16D7/02
Domestic Patent References:
JP2008215469A2008-09-18
JPH05296252A1993-11-09
JPH07269528A1995-10-17
JPS6442818U1989-03-14
JPH02130716U1990-10-29
JPH0610631U1994-02-10
JPH10196669A1998-07-31
JPH10513533A1998-12-22
JPS59208221A1984-11-26
JPH02130715U1990-10-29
JPS5510191A1980-01-24
JPS63130924A1988-06-03
JPS63135604A1988-06-08
JPH0618733U1994-03-11
Attorney, Agent or Firm:
山崎 宏
田中 光雄
仲倉 幸典