Wedge clamp type termination for elevator tension member
First Claim
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1. A termination device for a tension member, the tension member having a width W and an elastomer coating that has a maximum compressive stress capability σ
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c, the tension member being subjected to a tensile force T, the termination device comprising;
a socket; and
a wedge that fits within the socket with the tension member wrapped around the wedge, the wedge having a clamping surface that includes a length L and is disposed at an angle φ
, which relates to the length L in accordance with the formula;
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Abstract
A tension member termination device optimized for terminating flat tension members having compressible outer coatings, the device including a wedge and a socket each having cooperating surfaces positioned at a predetermined angle for clamping the tension member therebetween. The angle reliably secures the tension member while avoiding deleterious pressure and stress upon the tension member. The invention also provides a safety clamp for optional use with the tension member termination device.
33 Citations
3 Claims
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1. A termination device for a tension member, the tension member having a width W and an elastomer coating that has a maximum compressive stress capability σ
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c, the tension member being subjected to a tensile force T, the termination device comprising;
a socket; and
a wedge that fits within the socket with the tension member wrapped around the wedge, the wedge having a clamping surface that includes a length L and is disposed at an angle φ
, which relates to the length L in accordance with the formula;
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c, the tension member being subjected to a tensile force T, the termination device comprising;
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2. A method for terminating a tension member having a width W and an elastomer coating that has a maximum compressive stress capability σ
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c, comprising;
feeding the tension member into an aperture of a socket;
wrapping the tension member around a wedge having a clamping surface that includes a length L and is disposed at an angle φ
;
feeding the tension member back through the aperture; and
applying a tensile force T in the tension member so that the tension member is compressed between the wedge and the socket, wherein the tensile force T is applied in accordance with the formula;
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c, comprising;
Specification