Positioning apparatus with gears and a pivot for angularly and l

Details Positioning apparatus with gears and a pivot for angularly and l Positioning apparatus with gears and a pivot for angularly and l

1990-10-16

1992-04-07

Picard, Leo P.

Supports

Brackets

Adjustable

248918, 16338, 16354, 361393, E04G 316, E05D 7084, H05K 716

Patent

active

051020840

ABSTRACT:
A combination LCD screen and keyboard cover of a lap top computer is hinged to a main or keyboard body. The combination cover is used as either an LCD screen when opened or a keyboard cover when closed. The LCD screen is fixed to the inner face of the combination cover. The combination cover has a tilt adjusting apparatus for adjusting the screen viewing angle of the LCD screen. The tilt-adjusting apparatus comprises a pair of bracings which extends from one side of the combination cover and is hinged to a housing by hinge shafts. A pair of racks are longitudinally fixed to the rear wall of the housing and a mating pair of pinions are fixedly mounted on pinion shafts. Driving gears are fixedly mounted on the hinge shafts for rotating the pinions in the same direction through idle gears and transmission gears. Friction bands are wound around one cylindrical end of the hinge shafts in order to hold the tilt combination cover in place.

REFERENCES:
patent: 1638065 (1927-08-01), Simon
patent: 2959808 (1960-11-01), Limberg
patent: 3422487 (1969-01-01), Dickinson et al.
patent: 4630333 (1986-12-01), Vickens
patent: 4765027 (1988-08-01), Andric
patent: 4852032 (1989-07-01), Matsuda et al.
patent: 4946300 (1990-08-01), Makita
patent: 4960256 (1990-10-01), Chihara et al.
patent: 4979265 (1990-12-01), Grass

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