Brakes – Wheel – One-way brakes
Patent
1988-02-03
1989-09-19
Kashnikow, Andres
Brakes
Wheel
One-way brakes
188 30, 188 77R, 192 131, F16D 5900, B60T 100
Patent
active
048672823
ABSTRACT:
The invention relates to an anti-roll back device of particular applicability to motor vehicles but which can be applied to any rotating member where in ordinary useage the rotatable member is required to be rotated in one direction and prevented from rotating in the opposite direction but which has the further capability of being activated to permit the rotation in the opposite direction as and when it is required. This objective is met by a construction comprising engagement structure for association with a rotatable member, said engagement structure being a loop or noose of a flexible material formed from or faced with a friction material, the loop or noose being adapted to pass around said rotatable member from an anchor point to a rotatable spindle and to which the free end of the loop or noose is secured, said spindle being adapted for location in relation to said rotatable member such that rotation of said spindle in one direction puts said loop or noose in a first condition where the loop or noose is caused to slacken to allow free rotation of the rotatable member and rotation of said spindle in the opposite direction puts said loop or moose in a second condition, and in which second condition immediately the said rotatable member attempts to rotate in the opposite direction the said loop or noose can self tighten on said rotatable member to prevent that opposite rotation and there being structure selectively activatable to rotate said spindle in the required direction.
REFERENCES:
patent: 1210444 (1917-01-01), Fallek
patent: 2397186 (1946-03-01), Lill
patent: 2539545 (1951-01-01), Ljungkull
patent: 3923127 (1974-03-01), Radcliffe et al.
patent: 4715483 (1987-12-01), Hobson et al.
Giangiorgi R. A.
Graham Matthew C.
Kashnikow Andres
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