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:
Feb. 10, 1998
Filed:
Feb. 27, 1996
Naoki Kubota, Kashiwazaki, JP;
Kato Spring Works Co., Ltd., Tokyo, JP;
Abstract
The present invention provides a hinge device which permits opening and closing operations to be carried out smoothly and with surety, and which contributes to the design of a more compact device. The hinge device, wherein a transmitter is connected to one lateral edge of an operational member in a freely opening and closing manner, comprises two hinge device main bodies. These hinge device main bodies are disposed to either end of the lateral edge along the longitudinal direction thereof, and are provided with a cam shaft and a spring respectively. The cam shaft is affixed to the operating member by positioning the axis thereof parallel to the lateral edge. In addition, the cam shaft is provided with a cam portion at its axis periphery. A spring is affixed to the transmitter, and the cam portion of the cam shaft is elastically held.