Brakes – Wheel – Transversely movable
Patent
1978-04-03
1980-08-19
Kazenske, Edward R.
Brakes
Wheel
Transversely movable
188 70R, 188 714, F16D 4912
Patent
active
042179742
ABSTRACT:
The present invention relates to an improvement in a band brake wherein a plurality of rotors and stators provide for braking a rotatable member when a friction lining on the band brake is engageable with the rotatable member. The rotatable member carries an axially extendible assembly which is engageable with the friction lining to provide for extension of the axially extendible assembly. When the assembly is extended, the rotors which rotate with the rotatable member and the stators which are carried by a support housing are moved axially into frictional engagement with each other. The extendible assembly comprises a first element carried by a key on the rotatable member to impart rotation with the rotatable member and permit axial movement relative to the rotatable member, and a second element resiliently connected to the first element. The first element and second element include a cam therebetween such that when the second element engages the friction lining of the band brake, the second element rotates through a limited angle relative to the first element to increase the axial spacing between the elements by the action of the cam. The first element is also engageable with the friction lining to eliminate noise and instability in the action between the elements and the cam. In order to engage the friction lining with the rotatable member, the support housing forms a hydraulic actuator with at least one piston and a pair of links which are pivotably connected to each other cooperate with the friction lining when the hydraulic actuator is operated to contract the friction lining into engagement with the rotatable member.
REFERENCES:
patent: 1135885 (1915-04-01), Fawver
patent: 2014903 (1935-09-01), Logan
patent: 2955680 (1960-10-01), Caero
patent: 3116817 (1964-01-01), Quick et al.
patent: 3313381 (1967-04-01), Harting et al.
patent: 3557911 (1971-01-01), Ellard
Decker Ken C.
Kazenske Edward R.
Schoenle Paul David
The Bendix Corporation
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