Crank assembly

Details Crank assembly Crank assembly

1977-08-22

1979-10-02

Mancene, Louis G.

46 23, A63H 3306

Patent

active

041693329

ABSTRACT:
A crank assembly has an elongated shaft member having two end portions spaced from one another in the direction of an axis of the shaft, one of which portions is provided with a transverse projection. Two structural members are provided adapted to be located at a respective end portion of the crank and to support the same. One of the structural members has an undercut groove and the other structural member has an opening provided with an enlargement in its circumference. The shaft member is insertable into the groove and through the opening so that it can rotate relative to the structural members about the axis of the shaft member. At the same time, the projection of the shaft member is arrestable against undesired rotation by axial displacement of the shaft member relative to the structural members until the projection of the former becomes lodged in the enlargement of the opening of the other structural member, whereby rotation of the shaft member is prevented.

REFERENCES:
patent: 2291975 (1942-08-01), Minero
patent: 3513587 (1970-05-01), Fischer
patent: 3659376 (1972-05-01), Fischer
patent: 3747261 (1973-07-01), Salem

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