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:
Jun. 12, 1990
Filed:
Aug. 31, 1989
Karl Klos-Hein, Wismar, DE;
Horst H Rumpf, Herborn-Schonbach, DE;
U.S. Philips Corporation, New York, NY (US);
Abstract
The invention relates to a switching device in a magnetic-tape apparatus of the auto-reverse type, comprising a pivotal drive mechanism which is pivotable between two turntables to drive a first turntable in a first position and a second turntable in a second position. The pivotal drive mechanism, when it is pivoted between its first position and its second position in the case of a reversal of the direction of tape transport, actuates a change-over device for a pair of pressure rollers. The changeover device by means of a slide lifts a first or a second pressure roller journalled on a lever off an associated capstan against spring force. The pressure roller levers are pivoted about a pivotal axis by the pivotal drive mechanism and the slide via a first and a second cam lever respectively. The cam levers comprise cam surfaces which are followed by the pressure-roller levers. When the pivotal drive mechanism approaches the first or the second turntable, one of the cam levers is pivoted further via a pressure portion of the cam surface by the spring force acting on the associated pressure-roller lever, in such a way that the slide is urged into an end position by the pressure-roller lever. In the end position the pivotal drive mechanism is disengaged from the change-over device.