Driving mechanism for wiper blades

Details Driving mechanism for wiper blades Driving mechanism for wiper blades

1986-10-29

1987-11-17

Ro, Bentsu

Electricity: motive power systems

Periodic, repetitious or successive operations control of...

318480, 318DIG2, 1525017, 1525021, 1525023, B05

Patent

active

047076410

ABSTRACT:
The invention relates to driving mechanism for wiper blades of, for example, motor vehicles wherein two motors (14, 15) impart to the wiper arm, or to at least one of its elements, not only an oscillating, but also a translational (radial) movement. The oscillating movement is imparted to the wiper arm by means of a drive shaft (12) actuated by a first motor (14) and the radial movement is imparted to the wiper arm by means of the drive shaft (13) of a second motor (15) and by means of a conical gear (9a, 9b) associated with a screw
ut system (8, 7) wherein the nut (7) moves radially when the drive shaft (13) of the second motor (15) is rotating. The two movements of the wiper arm are controlled and regulated by an opto-electronical system comprising two slotted discs (14a, 15a), two reading heads (14b, 15b) and a micro-processor (19). Several embodiments of the invention are possible.

REFERENCES:
patent: 4584734 (1986-04-01), Leroy et al.

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