Machine element or mechanism – Mechanical movements – Grip units and features
Patent
1978-11-08
1980-06-24
Braun, Leslie
Machine element or mechanism
Mechanical movements
Grip units and features
74190, F16H 1516
Patent
active
042089263
ABSTRACT:
Nutating drives of the prior art have suffered from a problem of rotational unbalance. Such drives (10) include an outer rotatable structure (14) rotatable about its axis (16) and having a generally cylindrical cavity (18) axially therein, an axis (20) of said cavity being at an angle from the axis of rotation (16) of the rotatable structure (14), a generally cylindrical nutatable member (22) nutatably mounted within said cavity and a generally conically surfaced member (26) in contact with a generally cylindrical surface (28) of the nutatable member (22), said generally conically surfaced member (26) having an output shaft (30) generally coaxial with the axis of the rotatable structure. This problem of the prior art is solved by a structure which does not create rotational unbalance and which allows full nutation of the nutatable member while preventing it from rotating.
REFERENCES:
patent: Re29328 (1977-08-01), Kemper
patent: 3224300 (1965-12-01), Chery
patent: 3630095 (1971-12-01), Eakin
patent: 3910137 (1975-10-01), Nedeljkovitch
patent: 4112780 (1978-09-01), Kemper et al.
Vadetec Publication 1 page.
Braun Leslie
Caterpillar Tractor Co.
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