| 摘要 |
A device for automatic removal of a milking means comprises an actuation means (2) having a rotatable cord drum (20) with a cord (13). The actuation means (2) comprises a pneumatically operated sliding vane motor (19) provided to turn the cord drum (20) for winding the cord (13) thereon. The sliding vane motor (19) comprises a housing (33). A rotor body (R) and at least a pair of vanes (26, 28) form a first and a second radially directed circular cylindrical sealing surface (G, G'). The housing forms a first and a second circular cylindrical sealing surface (44, 45). The sliding vane motor has a first and a second sealing means (S, S'), respectively, provided for sealing between said first and said second sealing surface (G, G', 44, 45) of the rotor body (R) and the housing (33), respectively. |
