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:
Jun. 30, 1987
Filed:
Jan. 04, 1985
Yasushi Nouno, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Abstract
A rocker arm spring particularly adapted for use in a valve actuating mechanism of the type wherein a rocker arm is mounted to the cylinder head by means of a universal pivot and wherein an overhead cam shaft engages from above an intermediate section of the rocker arm. The universal pivot (28) includes a support socket (30) and a pivotable shaft (40), with a part-spherical convex lower end (48) of the shaft (40) received in a part-spherical concave bearing surface (38) of the support socket (30). The rocker arm spring (50) has an upper arm (56) engaging the rocker arm (24) and a lower arm (58) engaging the socket (30). The rocker arm spring (50) holds the shaft (40) and the socket (30) together without play and serves to bias the free end of the rocker arm (24) in contact with the stem of the intake or exhaust valve (12). The upper arm (56) of the spring (50) has side edges (66, 68) bent down at a right angle along bending lines (X--X, Y--Y) to increase the flexural rigidity of the upper arm.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile