Shaft decoupler

Details Shaft decoupler Shaft decoupler

1998-12-17

2000-05-09

Marmor, Charles A

192 clutches and power-stop control

Clutches

Torque responsive

192 565, 192 5656, 464 32, F16D 2300

Patent

active

060590858

ABSTRACT:
A decoupling apparatus for disconnecting an engine starter from an engine includes a first rotatable decoupler shaft, having a first clutch jaw, coaxially mounted with respect to a second rotatable decoupler shaft having a second clutch jaw. The two shafts can translate relative to each other from a first position in which the first and second clutch jaws are engaged to a second position in which the jaws are disengaged. A torsional shear pin with a unitary shaft has a first end in contact with a resilient member and a second end attached to the first decoupler shaft, thereby urging the first and second decoupler shafts into the first position. The torsional shear pin is frangible in response to angular movement of the first decoupler shaft relative to the second decoupler shaft to release the axially compressive force, thereby permitting the first and second decoupler shafts to move into the second position.

REFERENCES:
patent: 1956183 (1934-04-01), Lyon
patent: 2564605 (1951-08-01), Martin
patent: 2642730 (1953-06-01), Snyder
patent: 2730666 (1956-01-01), Cohen et al.
patent: 2764882 (1956-10-01), Bosworth
patent: 2942480 (1960-06-01), Schindel
patent: 3136400 (1964-06-01), Carr
patent: 4196799 (1980-04-01), Taylor et al.
patent: 4768634 (1988-09-01), Quick et al.
patent: 4871296 (1989-10-01), Laessle et al.
patent: 5267433 (1993-12-01), Burch

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