Motor/transmission drive unit for driving a component that is mo

Details Motor/transmission drive unit for driving a component that is mo Motor/transmission drive unit for driving a component that is mo

1998-02-10

2000-06-13

Bucci, David A.

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

74 8922, 74625, 192139, 296223, F16H 116, B60J 7057

Patent

active

06073504&

ABSTRACT:
A drive unit provided with an end position recognition device includes a radially projecting cam (27) connected to a driveshaft (20) of the drive unit, for reducing the stroke travel of the unit. The radially projecting cam engages, from tooth to tooth, into the inner toothing of a ratchet wheel (110), rotatable about an axis of rotation (111) that is offset and parallel to an axis of the driveshaft (20). The end position recognition device can be retrofitted and is preferably capable of operating even in the case of emergency manual actuation. The cam (27) has a sufficient axial stroke lift such that, in the case of emergency manual actuation, it nonetheless meshes with the ratchet wheel (110) even when the driveshaft (20) is displaced axially.

REFERENCES:
patent: 3478616 (1969-11-01), Smith
patent: 4272125 (1981-06-01), Bienert et al.
patent: 4420185 (1983-12-01), Bienert et al.
patent: 4512214 (1985-04-01), Surman
patent: 4665764 (1987-05-01), Inoue et al.
patent: 4996395 (1991-02-01), Tada
patent: 5101684 (1992-04-01), Mosslacher
patent: 5181891 (1993-01-01), Pohl et al.
patent: 5566593 (1996-10-01), Vordermaier

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