Patent ID: 9669554
Date: 2017-06-06
CPC Classifications: B25B,B25J,B65G,F16K

Claim:
1. A valve for a vacuum handling or vacuum clamping device, said valve comprising a valve housing, which has a vacuum supply side for connecting to a vacuum supply device, and a suction side, a flexible dividing wall, which delimits a control chamber in the valve housing, which control chamber communicates with the vacuum supply side, a valve body disposed on the flexible dividing wall, which can be moved between an open position and a closed position, wherein the valve body has a sealing section, which bears against a seal seat when in the closed position, in order to seal the vacuum supply side against the suction side, and wherein a volume of the control chamber can be reduced through deformation of the flexible dividing wall, depending on a vacuum occurring in the control chamber, and the valve body is moved thereby from the open position to the closed position, such that when suction occurs in an unoccupied state, the suction side of the valve body can be moved to the closed position due to a vacuum occurring in the control chamber, wherein the valve body has a suction side passage for a flow connection of the control chamber to the suction side, and wherein the sealing section and the seal seat are disposed outside the control chamber such that, when in the closed position, the suction side passage is sealed against the suction side and the flow connection from the suction side through the suction side passage is closed in a sealed manner, wherein the suction side passage has a choke point, which defines a flow resistance for a suction flow from the suction side in the control chamber such that, when air is suctioned in, a vacuum is formed between the suction side and the control chamber.