Patent ID: 7861830
Filing Date: 2011-01-04
Classification: F15B,F16C,Y10T

Abstract:
1. A safety device for the detachable clamping of elements, the safety device comprising: (a) a base body adapted to be traversed by a component extending in an axial direction, the base body being mounted with respect to the component so as to facilitate relative movement between the base body and the component in the axial direction; (b) the base body comprising at least one clamp element, the at least one clamp element including at least one chamber into which a medium can be admitted through a medium supply to produce an elastic change of the respective chamber dimensions in a direction radial to the axial direction, the medium supply comprising a valve which can be actuated via an actuation element that is mounted on the base body so as to facilitate relative movement between the base body and the actuation element in the axial direction, such relative movement between the actuation element and the base body moving the valve between a closed condition in which medium is admitted into the at least one chamber and an open condition in which medium is released from the at least one chamber; (c) wherein a section of the at least one chamber, or an element coupled to the at least one chamber, forms a respective force transmission element to transmit a clamping force on the component; and (d) wherein when medium is admitted into the at least one chamber to produce an elastic change of its dimensions in a direction radial to the axial direction, the respective force transmission element clamps or releases the component in the direction radial to the axial direction.