Safety device
First Claim
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.
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Accused Products
Abstract
A safety device is provided having a clamping system that uses pressure admission into a chamber of a clamp element dependent on the position of a weight to be carried relative to the clamping system. For this purpose a valve is provided in a medium supply line, which valve is to be opened or closed by means of a movable actuation element. Here, the actuation element should be movable in the same direction in which the weight moves, preferably in a vertical direction. As a result of the arrangement of such a valve, the device couples the vertical movement or position of the weight with an actuation of the valve, and thus to provide an additional control for the pressure admission into the chamber or the clamping force resulting therefrom. A preferred chamber has curved top and bottom walls that elongate with a pressure drop.
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Citations
20 Claims
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1. A safety device for the detachable clamping of elements, the safety device comprising:
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(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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A safety device for the detachable clamping of elements, the safety device comprising:
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(a) a base body, which is adapted to be penetrated by a component extending in an axial direction in such a manner that the base body and the component are two elements at least one of which is movable with respect the other; (b) the base body including 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 line, the medium supply line including 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, the respective force transmission element clamps or releases the component in a direction radial to the axial direction. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification