Title:
TRIPOD CONSTANT VELOCITY UNIVERSAL JOINT
Document Type and Number:
WIPO Patent Application WO/2017/051657
Kind Code:
A1
Abstract:
The present invention pertains to a tripod constant velocity universal joint (1) wherein the inner peripheral surface (12a) of an inner ring (12) rotatably supporting a roller (11) is formed so as to have an arc-shaped convex cross-section, and the outer peripheral surface (7a) of a leg shaft (7) of a tripod member 3, 33 has a straight shape in a longitudinal section and a substantially oval shape in a cross section. The outer peripheral surface (7a) of the leg shaft (7), as viewed in the direction perpendicular to the axis of the joint, is disposed so as to make contact with the inner peripheral surface (12a) of the inner ring (12), and, as viewed in the axial direction of the joint, is disposed so as to form a gap (m) with respect to the inner peripheral surface (12a) of the inner ring (12). A hollow hole (7b) is formed in the leg shaft (7), and a hardened layer (H, H')is formed on the outer peripheral surface (7a) of the leg shaft (7) and the surface of the hollow hole (7b). The hardened layer (H') is continuous in the radial direction of the leg shaft (7) from the outer peripheral surface (7a) of the leg shaft (7) to the surface of the hollow hole (7b).
Inventors:
SUGIYAMA TATSURO (JP)
Application Number:
PCT/JP2016/074861
Publication Date:
March 30, 2017
Filing Date:
August 25, 2016
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16D3/205; F16D3/20
Foreign References:
| JP2013044349A | 2013-03-04 | |||
| JP2013036611A | 2013-02-21 | |||
| JP2013036613A | 2013-02-21 | |||
| JP2007224981A | 2007-09-06 | |||
| JP2001208091A | 2001-08-03 | |||
| JPS63129713U | 1988-08-24 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
Download PDF:
Previous Patent: TRIPOD CONSTANT VELOCITY UNIVERSAL JOINT
Next Patent: FOIL BEARING AND MANUFACTURING METHOD THEREFOR
Next Patent: FOIL BEARING AND MANUFACTURING METHOD THEREFOR