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:
Mar. 27, 2012
Filed:
Oct. 14, 2009
Richard Guttenberger, Greding, DE;
Thomas Schreiber, Freystadt, DE;
Richard Guttenberger, Greding, DE;
Thomas Schreiber, Freystadt, DE;
Bühler Motor GmbH, Nürnberg, DE;
Abstract
A control drive, consisting of an electric motor and a planetary gear mechanism flush with the electric motor on the same axis of symmetry, comprising a ring gear, a planet carrier and three planet gears mounted on the planet carrier, the planet gears each having a front surface in the assembly direction in the area of their external teeth and the ring gear in the region of its internal teeth having three angle areas assigned to the planet gears of its end opposite the assembly direction in a defined angle position of the planet carrier to ring gear. The task of the present invention is to ensure that an economical and time-decoupled simple and rapid assembly of the three planet gears in the ring gear is possible without increasing the manufacturing expense on this account, in which only slight changes to existing forms are necessary. This task is solved in that the axial spacing between the front surface of the first planet gear and the first angle area of ring gear assigned to it differs from the axial spacing between the front surface of the second planet gear and the second angle area of ring gear assigned to it and the axial spacing between the front surface of the third planet gear and the third angle area of ring gear assigned to it.