192 clutches and power-stop control – Clutches – Automatic
Patent
1977-04-06
1978-12-05
Herrmann, Allan D.
192 clutches and power-stop control
Clutches
Automatic
74146, 192 4891, 192 4892, 248421, 297345, F16D 4116, F16D 2106, B60N 106
Patent
active
041281527
ABSTRACT:
A ratchet transmission for height and weight adjustment of suspension seats of vehicles having two independent gear-shift-lever shafts rotatably disposed about a common axis within a gear casing, a pair of ratchet wheels being respectively rigidly fixed on the gear-shift-lever shafts, a cam disc abutted by the gear casing and swivelable around the axis of the gear-shift-lever shafts, a pair of counteracting and pre-tensioned pawls for each of the ratchet wheels which are selectively latchable thereto by turning the cam disc, a guide system for leading the vehicle seat in a straight line and a spring component, including an elevating screw turnable by one of the gear-shift-lever shafts, a roving nut and a compressed spring, the spring component being adjustable as a whole for, free of tension, the purpose of height adjustments, through one of the gear-shift-lever shafts, and the compressible spring being pre-tensioned through the other of the gear-shift-lever shafts, by axially moving the roving nut, which forms a movable buttress of the spring and which is itself movable together with the elevating screw.
REFERENCES:
patent: 313967 (1885-03-01), Tiffany
patent: 397387 (1889-02-01), Reisch
patent: 1163500 (1915-12-01), Ball
patent: 1286360 (1918-12-01), Leopold
patent: 3897036 (1975-07-01), Nystrom
Fritzmeier AG
Herrmann Allan D.
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