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:
Dec. 15, 1992
Filed:
Aug. 15, 1991
Klaus Kampf, Lohmar, DE;
Jean Walterscheid GmbH, Lohmar, DE;
Abstract
The invention relates to a switchable freewheeling ratchet unit 1a having a coupling sleeve 2 and a coupling hub 5 as well as radially resilient locking ratchets 13 and 38 per direction of rotation, which engage recesses 11 and 39 of the coupling hub 5 and which, depending on the direction of rotation, may be disengagable from the coupling hub 5 by a control ring 23 with control elements 21. The control elements 21 have first control faces 19, 19a and the locking ratchets 13 and 38 have second control faces 18, 18a facing the first control faces 19 and 19a for freewheeling purposes. The locking ratchets 13 or 38 not serving torque transmitting purposes are completely disengaged from the recesses 11 and 39, respectively, and are out of contact with the coupling hub.