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:
Oct. 01, 1991
Filed:
Sep. 25, 1989
Ryuichi Tanaka, Yokosuka, JP;
Nippon Air Brake Co., Ltd., Hyogo, JP;
Abstract
In a mechanical component, a component body includes an opening, a first bore located at the opening and having a diameter of D.sub.1, and a second bore located on the opposite side of the first bore from the opening and having a diameter of D.sub.2, where D.sub.1 is larger than D.sub.2. A step is formed through which the first and second bores are connected to each other. An annular dish-shaped plate is urged against the step of the component body until the dish-shaped plate is deformed into a planar-plate configuration, to bite an outer periphery of the dish-shaped plate to a periphery of the first bore. Thus, an annular element formed by the dish-shaped plate is fixedly mounted to the component body. If the above-mentioned support structure is applied to a valve spring of a hydraulic pressure control valve, it is possible to surely stabilize the support of the valve spring.