Method of making a garter-type axially resilient coiled spring
First Claim
1. A method for making a garter-type axially resilient coiled spring comprising the steps of:
- fabricating by winding a metallic wire to produce coils canted with respect to a centerline of the garter-type axially resilient coiled spring, each coil having a leading portion and a trailing portion, said leading portion being disposed at a front angle in a range from 0 to 35 degrees with respect to a line normal to a centerline of the garter-type axially resilient coiled spring and said trailing portion being disposed at a back angle to the normal line;
during fabricating of the wire-adjusting the magnitude of the back angle in order to achieve a preselected resiliency of the garter-type axially resilient coiled spring; and
attaching two ends of the wound wire by welding in a manner that form forming a garter-type axially resilient coiled spring having the trailing portion along the inside diameter of the garter-type axially resilient coiled spring and the leading portion along the outside diameter of the garter-type axially resilient coiled spring.
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Accused Products
Abstract
A garter-type axially resilient coil spring includes a plurality of coils canted along a centerline thereof with each coil having a trailing portion and leading portion. The disposition of the trailing portion is defined by a back angle between the trailing portion and a line normal to the centerline and the disposition of the leading portion is defined by a front angle between the leading portion and the normal line. Specific resilient performance, or load-deflection characteristics, of the spring is obtained by controlling the back angle. At selected back angles, the leading portion may be disposed at front angles beyond the range heretofore thought possible.
103 Citations
6 Claims
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1. A method for making a garter-type axially resilient coiled spring comprising the steps of:
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fabricating by winding a metallic wire to produce coils canted with respect to a centerline of the garter-type axially resilient coiled spring, each coil having a leading portion and a trailing portion, said leading portion being disposed at a front angle in a range from 0 to 35 degrees with respect to a line normal to a centerline of the garter-type axially resilient coiled spring and said trailing portion being disposed at a back angle to the normal line; during fabricating of the wire-adjusting the magnitude of the back angle in order to achieve a preselected resiliency of the garter-type axially resilient coiled spring; and attaching two ends of the wound wire by welding in a manner that form forming a garter-type axially resilient coiled spring having the trailing portion along the inside diameter of the garter-type axially resilient coiled spring and the leading portion along the outside diameter of the garter-type axially resilient coiled spring. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification