Harmonic reduction gear and safety belt apparatus in motor vehicles comprising a harmonic reduction gear of this kind
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United States of America Patent
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-
Jan 22, 2002
Grant Date -
N/A
app pub date -
Oct 29, 1999
filing date -
Oct 29, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a harmonic reduction gear comprising a drive-side eccenter (12) which engages into a complementary opening (13) of an outer toothed member (14), and a housing-fixed inner toothed ring (15) which is arranged around the outer toothed member (14) and on which the outer toothed member (14) rolls with the reversed rotational sense as the eccenter (12) when the eccenter (12) is rotated. The invention consists in that the outer toothed member (14) has only few, preferably only two at least substantially diametrically opposed teeth (16, 17) of which during rotation of the eccenter (12) in each case one (16) is pushed into a tooth depression (18) of the inner toothed ring (15) while the other (17) is lifted out of the inner toothed ring (15) and is pivoted counter to the rotational sense of the eccenter (12) to the next tooth depression (18') into which, during further rotation of the eccenter (12), the other tooth (17) is pushed in with the first tooth (16) being lifted out, and so forth.
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