Windshield wiper drive mechanism with depressed parking

Details Windshield wiper drive mechanism with depressed parking Windshield wiper drive mechanism with depressed parking

1975-09-15

1978-05-09

Scott, Samuel

Machine element or mechanism

Mechanical movements

Rotary to alternating rotary

1525017, 74 52, F16H 2140

Patent

active

040880354

ABSTRACT:
A windshield wiper drive mechanism having a hypocycloidal input and an oscillating crank output. A multiple component linkage is disposed between the input and output to convert the linear motion from the input to oscillating motion for the output. The linkage includes one member having a gear segment portion thereon, another member having an abutment surface thereon and a lost motion connection between the members. A parking mechanism including a gear rack and a stop member is operable, during parking of the wipers, to engage the gear segment and the abutment surface respectively thereby enforcing relative rotation between the members, as permitted by the lost motion connection, so that the output is oscillated through an extended arc to facilitate depressed parking of the wipers.

REFERENCES:
patent: 2754687 (1956-07-01), Brandon
patent: 2960881 (1960-11-01), Perry et al.
patent: 2971388 (1961-02-01), Koppel
patent: 3091128 (1963-05-01), De Rees et al.
patent: 3282120 (1966-11-01), Compton
patent: 3588940 (1971-06-01), Mainka et al.

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