| 主权项 |
1. An object-sensing valve configured for integration in a suction duct of a vacuum gripper, the valve comprising:
a flexible and back-springing tongue one end of which is anchored by a side of the suction duct and an other end of which extends freely outside a mouth to the suction duct, the tongue dimensioned to be forced by an air flow to bend towards the mouth of the suction duct and to cover the mouth incompletely in the loaded state of the tongue, wherein the suction duct opens in a convexly curved or arcuate surface providing supporting faces for the tongue in the tongue's bended state, on each opposite side of the suction duct mouth, and a flexible part of the tongue, as viewed in a direction towards the tongue's free end and in a sectional plane which shows an actual length of the tongue, has a length which is less than an extension of the mouth of the suction duct in a same plane. |
