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Patent Searching and Data


Title:
BACKLASH-FREE GEAR PART
Document Type and Number:
Japanese Patent JP2000193067
Kind Code:
A
Abstract:

To eliminate backlash and quietly transmit high rotation moment by setting the diameter of an inside drive surface of an annular wheel having a planetary gear unit stored therein in such a state as satisfying a specific relation relative to the diameters of the sun wheel and the planetary wheel.

A pot-shaped annular wheel 8 provided with a first inside drive surface 7 and an elastically deformable rim 16 in a housing is supported by its flange part 17 and a planetary carrier 6 integral with the first shaft 9 is rotatably stored in the annular wheel 8. A lot of planetary wheels 3 are journalled to the carrier 6 and a sun wheel 2 on a second shaft 1 is engaged therewith. In this case, the diameter of the inside drive surface 7 of the annular wheel 8 is set smaller than the sum value of the diameter of the inside drive surface 21 of the sun wheel 2 and twice the value of the diameter of the planetary wheel 3 so as to eliminate the backlash.


Inventors:
WIRZ WALTER
Application Number:
JP1999000357413
Publication Date:
July 14, 2000
Filing Date:
December 16, 1999
Export Citation:
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Assignee:
REISCHAUER AG
International Classes:
B23Q5/04; B23Q5/56; F16H1/28; F16H13/08; F16H55/18; (IPC1-7): F16H55/18; B23Q5/04; B23Q5/56; F16H1/28
Attorney, Agent or Firm:
渡辺 喜平 (外2名)