Automatic overload clutch structure

Details Automatic overload clutch structure Automatic overload clutch structure

1987-01-20

1989-01-17

Stodola, Daniel P.

Rotary shafts, gudgeons, housings, and flexible couplings for ro

Overload release coupling

Torque transmitted via resiliently biased positive drive...

192 56R, F16D 704

Patent

active

047985593

ABSTRACT:
To provide a compact clutch, two clutch parts (1, 2; 44,54,55,73,74) are located in axially fixed position on respective driving and driven shafts. The clutch can be automatically disengaged upon transfer of excessive torque, by including bolt elements (16,61) which are positioned circumferentially around one of the clutch elements (2) and parallel to the axis of rotation (17,60) of the clutch, the bolt elements carrying directly, or engaging respectively tooth or tooth gap elements which are shiftable axially against a bias force, for example provided by a spring (22). The tooth or tooth gap elements are rotatable about the longitudinal bolt axis by a limited angle, which angle is slightly above a relative angle of rotation of the clutch parts upon disengagement due to overload, so that the respective flanks of the tooth elements, engaged with tooth gap elements--or tooth gaps formed in the other clutch part--will remain in continuous engagement just until disengagement of the clutch to thereby provide extensive surface engagement contact between the respective clutch parts.

REFERENCES:
patent: 998615 (1911-07-01), Huneke
patent: 3927537 (1975-12-01), Anderson et al.
patent: 4062203 (1977-12-01), Leonard et al.
patent: 4420072 (1983-12-01), Treffinger et al.
patent: 4593800 (1986-06-01), Ness et al.

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