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:
Nov. 27, 1984
Filed:
Oct. 09, 1981
Koh Matsuhisa, Yokohama, JP;
Ricoh Company, Ltd., , JP;
Abstract
Carriage drive means having cables or belts for transmitting drive force and a spring for tensioning the cables or the belts. A rigid member interposed between the spring and the cable or belt, the rigid member constituting a self-locking mechanism which allows the member to move, when elongation occurs in the cable or belt, to a position in which the elongation is absorbed by the tension of the spring, but does not allow same to move in a direction in which it is restored to its original position. In the aforesaid self-locking mechanism, the rigid member may be in the form of a segmental cam which engages with suitable friction the shaft of a pulley mounted for movement while having the cable wound thereon, or the rigid member may engage with suitable friction a pivotal member for supporting in a position remote from the pivot the pulley having the cable wound thereon.