Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SUPPORT POINT BEARING DEVICE FOR PULLEY ARM
Document Type and Number:
WIPO Patent Application WO/2014/065320
Kind Code:
A1
Abstract:
A support point bearing device for a pulley arm is configured in such a manner that a sleeve (7) is inserted into a shaft hole (5) in a boss section (4) which is provided to the pulley arm (1), washers (8) are fitted over the respective outer peripheries of small-diameter cylinder sections (7a) which are formed at both ends of the sleeve (7), and the sleeve (7) is affixed to an engine block (30) by tightening a bolt (20) which is inserted through the sleeve (7), thereby allowing the pulley arm (1) to be supported in a rotatable manner. Seal receiving recesses (11) having a large diameter are provided in both ends of the shaft hole (5), and circular cylinder sections (12a) which are provided to the outer peripheral sections of seal members (12) are press-fitted into the seal receiving recesses (11). Radial lips (12c) which tilt inward are provided on the inner peripheries of the seal members (12), and the tips of the radial lips (12c) are brought to be in elastic contact with the outer diameter surface of the sleeve (7). The radial lips (12c) are adapted so that, when inner pressure has increased, the radial lips (12c) elastically deform in the direction in which the diameter of the radial lips (12c) reduces, and consequently, the contact pressure of the radial lips (12c) relative to the outer diameter surface of the sleeve (7) is increased.

More Like This:
JPH04258554TENSION DEVICE ELASTICALLY APPLYING PRESSURE TO TENSION PULLEY ON FLEXIBLE TRANSMISSION LINK
JPS63243557TENSION GRIP FOR DRIVING BELT
JPS61112853CHAIN STRETCHING DEVICE
Inventors:
TANAKA TADAHISA (JP)
SATO SEIJI (JP)
TAKANO TAKEHIRO (JP)
Application Number:
PCT/JP2013/078697
Publication Date:
May 01, 2014
Filing Date:
October 23, 2013
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16H7/12; F16J15/32
Foreign References:
JPH1089427A1998-04-07
JPS60114372U1985-08-02
JP2011231781A2011-11-17
JP2011196552A2011-10-06
JP2010255698A2010-11-11
US0790140A1905-05-16
Other References:
See also references of EP 2913556A4
Attorney, Agent or Firm:
KAMADA Bunji et al. (JP)
Bunji Kamata (JP)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: WIPER FOR VEHICLE

Next Patent: GLASS COMPOSITION FOR GLASS FIBERS, GLASS FIBERS, AND METHOD FOR PRODUCING GLASS FIBERS