US 4,226,314 A · Combined clutch and double-action braking device

Abstract

A combined clutch and double-action braking device for use in intermittently operating machines having a rotational driving shaft and a separate driven shaft, clutch or coupling disks secured to the driving shaft, and two braking disks fixedly arranged on a stationary holder, the device comprising a supporting disk secured to the driven shaft and defining a peripheral part and an intermediate part, the peripheral part projecting between the two braking disks, the intermediate part being extended to form two opposite tubular spaces divided by a fixed partition and each having an axially movable wall portion forming a pressure disk sealingly closing the assigned space; in rest condition, pressure springs resiliently urge each pressure disk against an assigned braking disk, whereas in actuated position pressure fluid is applied into the spaces to disengage the pressure disks from the braking disks and for urging one of the pressure disks against the coupling disk.

Claims8

Dependent claims

A combined clutch and double-braking action device for use in machines having a rotational driving shaft and a separate driven shaft, said device comprising at least one coupling disk secured to said driving shaft;

two braking disks fixedly arranged in a spaced relation with each other on a stationary holding member;
a clutch support and at least one supporting disk each secured to said driven shaft, said one supporting disk defining a peripheral part and an intermediate part, said peripheral part projecting between said braking disks, said intermediate part including two opposite pressure spaces having a common partition therebetween and each cooperating with an axially movable pressure disk for sealingly closing the assigned space;
said pressure spaces and said pressure disks delimiting substantially equal surfaces;
spring means for resiliently urging each pressure disk against a corresponding braking disk;
and means for applying pressure fluid into said spaces to disengage said pressure disks from said braking disks and for urging at least one of said pressure disks against said coupling disk.

2 more elements

two braking disks fixedly arranged in a spaced relation with each other on a stationary holding member;
a clutch support and at least one supporting disk each secured to said driven shaft, said one supporting disk defining a peripheral part and an intermediate part, said peripheral part projecting between said braking disks, said intermediate part including two opposite pressure spaces having a common partition therebetween and each cooperating with an axially movable pressure disk for sealingly closing the assigned space;
said pressure spaces and said pressure disks delimiting substantially equal surfaces;
spring means for resiliently urging each pressure disk against a corresponding braking disk;
and means for applying pressure fluid into said spaces to disengage said pressure disks from said braking disks and for urging at least one of said pressure disks against said coupling disk, said partition between said pressure spaces including an integrally connected pin for guiding and carrying said axially-movable pressure disk.

2 more elements

Dependencies are inferred from the claim text.

Combined clutch and double-action braking device

Life of this patent

Combined clutch and double-action braking device

Life of this patent

Abstract

Claims8