The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 27, 2004
Filed:
Jan. 30, 2002
Kazumasa Ayukawa, Nara, JP;
Unitta Company, Osaka, JP;
Abstract
An autotensioner comprises a cup-shaped stationary member, an arm rotatably attached to an opening of the stationary member. An axial bore is formed in the bottom of the stationary member. A rocking wall extending to the bottom is provided at the arm. A first friction member is provided between the rocking wall and the inner wall of the opening. The first friction member is gripped between the rocking wall and the inner wall. A rocking shaft extending to the bottom is provided at the center of a lid portion of the arm. The rocking shaft is inserted in the axial bore. A second friction member is provided between the rocking shaft and the axial bore. The first friction member and the second friction member are formed of a synthetic resin mainly comprised of PPS, exhibit high limited PV factors, and exhibit low coefficients of friction.