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:
Apr. 24, 2001
Filed:
Jun. 24, 1999
Helmut Hirn, Nehren, DE;
Franz Laudenbach, Gosheim, DE;
IMS Morat Soehne GmbH, , DE;
Abstract
The invention concerns a step-down gear unit with a rigid support ring (,), comprising a substantially cylindrical support surface (,), and with a radially flexible rolling collet (,) which has an outer generated surface (,) with a smaller peripheral length than the support surface (,), one or a plurality of peripheral sections of the outer generated surface (,) being held in substantially slip-free engagement in continuous exchange with the support surface (,) of the support ring (,) by one or a plurality of parts lying on an enveloping circle of a drive core (,) which is rotatably disposed inside the rolling collet (,) and is rotated by a drive shaft (,). The enveloping circle (,) of the driven elliptical drive core (,) has a substantially smaller diameter (Dh) than the basically cylindrical rolling collet (,). The rolling collet (,) is supported on the drive core (,) by a plurality of substantially radial transmission elements (,) which are all of equal length.