Brake clutch
AssigneeThe Toro Company
InventorWalter J. Petersen
Life of this patent
Estimating the term…
Abstract
An apparatus for selectively transmitting power between a rotating shaft and a belt including an integral brake member. The apparatus includes a pulley affixed to the shaft and which frictionally engages the belt. The pulley includes a pair of sheave halves which are reciprocable axially with respect to each other between belt engaged and disengaged positions. The integral brake member is mounted about the shaft between the sheave halves and affixed against rotation with the shaft. In the disengaged position the belt drops onto the brake member and is brought to a rapid stop.
Claims11
Apparatus for selectively transmitting power between a rotating shaft and a drive belt, comprising:
- (a) a drive pulley mounted to the shaft for rotation therewith, said drive pulley having a belt engaging surface about the outer periphery thereof;
- (b) a brake member mounted about the shaft and affixed against rotation therewith, said brake member having a frictional braking surface thereon;
- and
- (c) means for selectively positioning the drive belt on said belt drive surface or said frictional braking surface to engage or disengage, respectively, the drive belt from the rotating shaft.
An integral clutch and brake assembly for selectively transmitting power between a rotating shaft mounted in a frame and a belt under tension, comprising:
- (a) a first member rigidly mounted to a shaft for rotation therewith and having a belt engaging surface about its outer periphery;
- (b) a second member mounted about the shaft for rotation therewith and reciprocation along the axis of the shaft between first and second positions, said second member having a second belt engaging surface about its outer periphery, said first and second belt engaging surfaces cooperating to frictionally engage the belt in said first position to transmit power between the shaft and the belt;
- the belt disengaged from said first and second engagement surfaces in said second position;
- (c) a brake member mounted about shaft and axially disposed on the shaft generally between said first and second members, said brake member having a frictional braking surface on its outer periphery, whereby in said second position of said second member the belt contacts said frictional braking surface;
- (d) means for axially reciprocating said second member between said first and second positions;
- and
- (e) means for affixing said brake member against rotation with the shaft.
Dependencies are inferred from the claim text.