Device for controlling working stresses of elongated members, in particular safety belts and control method
First Claim
1. Tensile force control device for elongate elements subjected to crash tests, of the type comprising:
- a body which delimits a non-rectilinear path for an elongate element (18) to pass between at least two supporting members (14;
22) which are placed at a first side and at least one supporting member (16) which is placed at the second side, at least one of the supporting members (14, 16;
22) being provided with a force sensor which has a measurement range which covers the forces experienced during a crash test, each supporting member (14;
22) at least at one side of the path being able to be separated from the body, so that the tensile force control device can be placed on an elongate element (l.8) by separating each separable supporting member (14;
22) from the body, then by fixing each separable supporting member (14;
22) to the body, characterised in that it further comprises an additional supporting member which is geometrically interchangeable with a separable supporting member (14;
22), the additional supporting member being provided with a second force sensor which has a measurement range which covers the preliminary tensile forces of the elongate element, the force control device having two different configurations depending on whether a supporting member which is separable from the body comprises the second force sensor or not.
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Accused Products
Abstract
The invention concerns a device for controlling forces. It concerns a controlling device comprising a body defining a non rectilinear path for passing a strap (18) between two support members (14) arranged on one first side and a support member (16) arranged on the second side, and provided with a sensor of forces experienced during an impact test, each support member (14) being separable from the body. An additional support member geometrically interchangeable with a separable support member (14) is provided with a second force sensor having a measuring range covering the prior working stress of the strap, the controlling device having two different configurations depending on whether a separable member comprises the second force sensor or not. The invention is useful for testing safety belts during impact tests.
19 Citations
20 Claims
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1. Tensile force control device for elongate elements subjected to crash tests, of the type comprising:
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a body which delimits a non-rectilinear path for an elongate element (18) to pass between at least two supporting members (14;
22) which are placed at a first side and at least one supporting member (16) which is placed at the second side,at least one of the supporting members (14, 16;
22) being provided with a force sensor which has a measurement range which covers the forces experienced during a crash test,each supporting member (14;
22) at least at one side of the path being able to be separated from the body, so that the tensile force control device can be placed on an elongate element (l.8) by separating each separable supporting member (14;
22) from the body, then by fixing each separable supporting member (14;
22) to the body, characterised in that it further comprises an additional supporting member which is geometrically interchangeable with a separable supporting member (14;
22), the additional supporting member being provided with a second force sensor which has a measurement range which covers the preliminary tensile forces of the elongate element, the force control device having two different configurations depending on whether a supporting member which is separable from the body comprises the second force sensor or not. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification