Combined clutch and double-action braking device

Claim 2

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.

Claim 3

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, said partition between said pressure spaces including an integrally connected pin for guiding and carrying said axially-movable pressure disk.

Claim 4

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, said partition between said pressure spaces including an integrally connected pin for guiding and carrying said axially-movable pressure disk.

Claim 5

The device as defined in claim 2, wherein respective free ends of said pin are guided in corresponding recesses provided in said pressure disk.

Claim 6

The device as defined in claim 3, wherein said clutch support is provided with a passage for introducing pressure fluid into said pressure spaces and the partition of the supporting disk is provided with an additional opening for introducing the pressure fluid into both of said pressure spaces.

Claim 7

The device as defined in claim 3, further including an end cover, the clutch support being integrally connected with said supporting disk and with said cover, said spring means including springs seated in recesses provided respectively in said supporting disk and one of said pressure disks, and between the other pressure disk and said cover.

Claim 8

The device as defined in claim 1, wherein said coupling-, braking- and pressure-disks each have an annular configuration and are coaxially arranged around said driven shaft, said clutch support being connected to the driven shaft and to said supporting disk, and said supporting disk carrying said pressure disks.

Claim 9

The device as defined in claim 6, wherein said intermediate part of the supporting disk forms a double cylinder the peripheral part of which is provided with a plurality of uniformly spaced and radially directed stiffening ribs, and two supporting rings facing said braking disk and being connected to the sides of said stiffening ribs to form therewith a plurality of ventilation chambers.

Claim 10

The device as defined in claim 7, wherein portions of said supporting rings between respective stiffening ribs are provided with ventilation openings.