Title:
VEHICLE-WHEEL BEARING DEVICE WITH SENSOR
Document Type and Number:
WIPO Patent Application WO/2015/005282
Kind Code:
A1
Abstract:
Rolling elements (5) are interposed between rolling surfaces of an outer member (1) and an inner member. One of said members, namely a stationary-side member, is provided with a sensor unit (20) comprising both a strain-exhibiting member (21) and strain sensors (22A, 22B) attached to said strain-exhibiting member (21). The strain-exhibiting member (21) has three contacting/affixed sections (21a) that are lined up in the circumferential direction of the stationary-side member and make contact with and are affixed thereto. The aforementioned strain sensors (22A, 22B) are attached between said contacting/affixed sections (21a). The circumferential surface of the stationary-side member is provided with two grooves (1c) between the contacting/affixed sections (21a). The distance (L) between the widthwise centers of said grooves (1c) is set equal to the straight-line distance (L) between the circumferential positions of two points (C, C) that, with respect to a contact radius (d) that is the radius of an imaginary circle defined by a plurality of points at which the plurality of rolling elements contact the rolling surface of the stationary-side member with a prescribed contact angle, are separated by an angle that is half the pitch of the rolling elements.
Inventors:
NISHIKAWA KENTAROU (JP)
TAKAHASHI TORU (JP)
TAKAHASHI TORU (JP)
Application Number:
PCT/JP2014/068051
Publication Date:
January 15, 2015
Filing Date:
July 07, 2014
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
NISHIKAWA KENTAROU (JP)
TAKAHASHI TORU (JP)
NISHIKAWA KENTAROU (JP)
TAKAHASHI TORU (JP)
International Classes:
G01L5/00
Foreign References:
| JP2013076573A | 2013-04-25 | |||
| JP2009041704A | 2009-02-26 | |||
| JPH01291135A | 1989-11-22 | |||
| JP2008106904A | 2008-05-08 |
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (JP)
Shuji Sugimoto (JP)
Shuji Sugimoto (JP)
Download PDF: