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:
Aug. 28, 1990
Filed:
Jul. 28, 1989
Tsutomu Saka, Saitama, JP;
Katsuaki Sato, Saitama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
In a toothed sintered pulley comprising a rim having a large number of teeth on its outer peripheral surface and lightening grooves at those portions of its inner peripheral surface which correspond to the individual teeth, a boss located radially inside of the rim, and a connection which connects the inner peripheral surface of the rim with an outer peripheral surface of the boss, the porosity of the rim is set larger than that of the boss. In addition, the connection is connected to axially intermediate portions of the inner peripheral surface of the rim, and lands are provided in a one-side half of the rim projecting from this connection in one of axial directions, so that each land is located between the two adjacent lightening grooves, with the radial thickness of the land being gradually increased from an outer end face of the one-side half toward the connection. This makes it possible to provide a toothed sintered pulley which is lightweight; in which any backlash noise due to meshing of the rim with a belt can be reduced, and the strength of the boss cannot be injured, and in which the rigidity of the one-side half in the rim is improved while suppressing the increase in weight thereof to the utmost.