Title:
ATTACHMENT STRUCTURE OF BOOT FOR UNIVERSAL JOINT
Document Type and Number:
Japanese Patent JP2019056479
Kind Code:
A
Abstract:
To provide an attachment structure of a boot for a universal joint which makes an attachment part 3 of the boot less likely to be displaced in axial direction relative to a mating attachment member 21 and inhibits a film part 2 from being deformed resulting from the displacement.SOLUTION: An attachment structure of a boot for a universal joint has an attachment part 3, which is attached to a mating attachment member 21, at an end part of a bellows shaped film part 2, has multiple seal lips 6, 7 on an inner peripheral surface of the attachment part 3, and has a fitting groove 22, in which the multiple seal lips 6, 7 are fitted, on an outer peripheral surface of the mating attachment member 21. An annular protruding part 23 which engages with an annular recessed part 8 between the multiple seal lips 6, 7 is provided at a bottom surface part of the fitting groove 22. A boot exterior side end surface 23b of the annular protruding part 23 and a boot interior side end surface of the fitting groove 22 are individually formed as planar engagement surfaces arranged perpendicular to an axis.SELECTED DRAWING: Figure 2
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Inventors:
YAMAGUCHI YOSHIHISA
Application Number:
JP2017182831A
Publication Date:
April 11, 2019
Filing Date:
September 22, 2017
Export Citation:
Assignee:
NOK CORP
International Classes:
F16D3/84; F16J3/04; F16J15/52
Domestic Patent References:
| JP2009156409A | 2009-07-16 | |||
| JP2015117720A | 2015-06-25 | |||
| JP2016183740A | 2016-10-20 | |||
| JPH05180350A | 1993-07-20 |
Foreign References:
| KR20110087862A | 2011-08-03 | |||
| KR100822573B1 | 2008-04-16 |
Attorney, Agent or Firm:
Kiriyama Dai
Yoichi Nomoto
Yoichi Nomoto