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. 25, 1987
Filed:
Sep. 11, 1986
Yuji Sakaguchi, Kawasaki, JP;
Tatuo Terahama, Kunitachi, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
A driving device having tactility includes at least one set of two elastic extensible and contractible bodies having one ends connected to a stationary portion of the device and the other ends connected to a driven member driven by contractive force in axial directions of said elastic bodies caused by expanded diameters by introducing pressurized fluid into the elastic bodies. The driving device comprises detecting means for detecting movements of said driven member, valve means for supplying and exhausting the pressurized fluid into and out of the respective elastic bodies, positioning means for actuating the valve means in response to output signals from the detecting means to position the driven member in predetermined positions, and control means for comparing output signals from the detecting means produced by external actions on the driven member positioned in at least one predetermined position with a reference level to control the positioning means. The driving device can perceive external actions acting on the overall device without requiring any separate tactile sensor.