192 clutches and power-stop control – Field responsive frictional media type
Patent
1978-10-30
1981-06-23
Bonck, Rodney H.
192 clutches and power-stop control
Field responsive frictional media type
74377, 192 489, 192 51, 192 67A, F16D 1110, F16D 2302
Patent
active
042745233
ABSTRACT:
An automatically engageable jaw clutch having a toothed drive hub, a toothed power take-off hub, and a clutch star axially displaceable with respect to the power take-off hub. The clutch star is continuously connected with the drive hub for conjoint rotation by means of first teeth means formed thereat and has second teeth means which can be brought into engagement with the teeth of the power take-off shaft by axial shifting of the clutch star. A screw socket or sleeve which is connected by means of a pair of coarse-pitch threading with the power take-off hub, is only conjointly axially displaceable together with the clutch star and rotatable relative thereto. The screw socket is entrainable by the clutch star by means of a pawl blocking mechanism composed of a pawl and ratchet teeth, when the drive hub overrides the power take-off hub. A switching device serves for selectively rendering ineffectual the pawls and contains a sleeve which is axially adjustable in relation to the clutch star and equipped with a ramp surface which, in a predetermined axial position of the sleeve in relation to the clutch star, hinders the pawls from engaging with the ratchet teeth.
REFERENCES:
patent: 834394 (1906-10-01), Metcalf
patent: 3154181 (1964-10-01), Sigg
patent: 3888337 (1975-06-01), Worthen
patent: 3960253 (1976-06-01), Sigg
patent: 4053038 (1977-10-01), Herrick
Bonck Rodney H.
Kleeman Werner W.
Maag Gear-Wheel & Machine Co. Ltd.
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