Harmonic drive and internal geared wheel for a drive of this type
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
May 18, 2004
Grant Date -
May 15, 2003
app pub date -
Oct 21, 2002
filing date -
Mar 4, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The star-shaped internal geared wheel (15) of a harmonic drive (12) consists of individual tappets (21) which are displaceably interconnected by a retainer ring (28) which circles them at approximately half the height of the tappet shaft, so that they form a single part that can be handled. The inner front end (28) of the tappet shaft, which is thermally dimensionally stable, is provided with a guiding shoe or at least provided with a slide-resistant coating opposite a radially elastically compressible head (26). The internal geared wheel (15) is produced as a one-part plastic injection-moulded element in a multiple component method, with a thermally dimensionally stable foot (23), support ring arms (28) which are elastically moulded onto the respective dimensionally stable and extremely resistant tappet shaft and head walls (27,32) consisting of different plastics.
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