SLIDING CONSTANT-VELOCITY UNIVERSAL JOINT

Title:

SLIDING CONSTANT-VELOCITY UNIVERSAL JOINT

Document Type and Number:

WIPO Patent Application WO/2012/098959

Kind Code:

A1

Abstract:

A sliding constant-velocity universal joint, the interior of which houses a coil spring for exerting an urging force on a torque transmission shaft, wherein a compact spring bearing member is used, and this spring bearing member is prevented from falling into a step part of a roller end face even in the case of a high operating angle. The sliding constant-velocity universal joint comprises an outside joint member (11), a slidable inside joint member (12), a torque transmission shaft (13) fitted in the center of the inside joint member (12), a spring bearing member (15), and a coil spring (14) interposed between the spring bearing member (15) and the inside bottom face of the outside joint member (11), wherein the joint can be made more compact by forming the spring bearing member (15) in a dish shape, and wherein the size of the pitch of the coil spring (14) is set such that a roller (28) does not readily enter an inter-pitch gap even in a case where the coil spring (14) interferes with the roller (28).

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Inventors:

SUGIYAMA TATSURO (JP)
TOMOGAMI SHIN (JP)

Application Number:

PCT/JP2012/050301

Publication Date:

July 26, 2012

Filing Date:

January 11, 2012

Export Citation:

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Assignee:

NTN TOYO BEARING CO LTD (JP)
SUGIYAMA TATSURO (JP)
TOMOGAMI SHIN (JP)

International Classes:

F16D3/205; F16D3/20

Foreign References:

JP2005172142A	2005-06-30
JP2007239877A	2007-09-20

Attorney, Agent or Firm:

TORII Kazuhisa et al. (JP)
Kazuhisa Torii (JP)

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Claims:

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