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:
Sep. 28, 2021
Filed:
Nov. 17, 2016
Denso Corporation, Kariya, JP;
Oiles Corporation, Tokyo, JP;
DENSO CORPORATION, Kariya, JP;
OILES CORPORATION, Tokyo, JP;
Abstract
Provided is a resin bush capable of slidably supporting a shaft when the bush has been fitted in a housing; particularly, a resin bush suitable for use in an environment in which the effects of a difference in thermal expansion coefficients are likely to be prominent, such as a high-temperature environment, even when the housing and the shaft are made of a material such as a metal that has a different thermal expansion coefficient from that of the resin bush. In the resin bush (), which is molded by extrusion molding, a slit () is formed from one axial end surface () towards another axial end surface (). A recessed section () for a gate (a gate position), which is provided to the one axial end surface (), is provided in a position that is deviated from being symmetrical with the slit (), at least with respect to a center axis O of a bush body (). The resin used for the material of the bush () is a resin having excellent heat resistance and chemical resistance, such as PPS resin or a PEEK resin.