Self-compensating clutch/brake
AssigneeRansome Hoffmann Pollard Limited
InventorSui Yun Poon
Life of this patent
Estimating the term…
Abstract
A hydraulically operated clutch mechanism for connecting a drive shaft and a driven shaft includes a clutch normally effecting driving connection between the shafts. Hydraulically actuable means are provided for disengaging the drive connection and brake means are provided for braking the driven shaft, a mechanical linkage being provided between the hydraulically actuable means and the brake means. Actuation of the hydraulically actuable means first disengages the drive connection and then causes braking of the driven shaft. The mechanical linkage incorporates compensation means for compensating automatically for any wear of the clutch.
Claims18
A hydraulically operated clutch mechanism for connecting a driving shaft and a driven shaft, the mechanism comprising:-
- a. a clutch normally effecting a drive connection between said shafts;
- b. hydraulically actuable means for disengaging said drive connection;
- c. brake means for braking said driven shaft;
- d. a mechanical linkage between said hydraulically actuable means and said brake means;
- and
- e. a compensation means, incorporated in said mechanical linkage, for compensating automatically for any wear of said clutch;
- said mechanical linkage comprising a first sleeve movable with said hydraulically actuable means and a second sleeve engagable with said brake means, said first sleeve being connected to said second sleeve by said compensation means;
- said compensation means comprising at least one slot formed in one of said sleeves and at least one peg provided on the other of said sleeves, there being as many pegs as there are slots and the peg(s) mating with slot(s);
- and actuation of said hydraulically actuable means first disengaging said drive connection and then causing braking of said driven shaft.
A mechanism as claimed in 1, wherein the brake means comprises a pressure plate fast to, or integrally formed with, the second sleeve and a backing plate, the pressure plate and the backing plate being situated on opposite sides of the disc so that movement of the pressure plate towards the backing plate traps the disc therebetween.
Dependencies are inferred from the claim text.