Anti blade set vehicle wiper park mechanism

Details Anti blade set vehicle wiper park mechanism Anti blade set vehicle wiper park mechanism

1988-10-07

1990-02-27

Shoop, Jr., William M.

Electricity: motive power systems

Motor-reversing

Periodic- or intermittent-reversing

1525017, H02P 104

Patent

active

049049089

ABSTRACT:
A vehicle wiper park mechanism includes a shutoff gear that turns at half the speed and substantially diametrically opposed interrupts that are interconnected randomly, with approximately equal frequency, to park the wipers. The interrupts are offset from an exact diametrical opposition by an angle sufficient to assure that the wiper blades will be randomly flexed in opposite directions when parked, thereby avoiding a permanent blade set with time.

REFERENCES:
patent: 4355270 (1982-10-01), Cook et al.
patent: 4439886 (1984-04-01), Yagasaki et al.
patent: 4559484 (1985-12-01), Hirano
patent: 4599546 (1986-07-01), Uemura
patent: 4614903 (1986-09-01), Betsch et al.
patent: 4692677 (1987-09-01), Bauer et al.
patent: 4705998 (1987-11-01), Millerd et al.

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