Canted coil springs and assemblies and related methods

摘要

Canted coil spring rings each with a first plurality of coils having first coil major and minor axes; a second plurality of coils each having second coil major and minor axes; the coils of the first plurality of coils alternating with the coils of the second plurality of coils according to an alternating pattern. The spring rings having inner and outer perimeters and wherein the inner perimeter of the spring ring is defined by at least said first plurality of coils. The resulting configuration of the spring ring has improved spacing along the inner perimeter, among others, with respect to a similar canted coil spring ring having a constant coil cross section, such as a coil length with all similar coils.

主权项

1. A canted coil spring ring comprising:
a first plurality of coils each having a first coil major axis, a first coil minor axis and a coil center defined by the intersection of said first coil major and minor axes; a first centerline defined by the plurality of coil centers resulting from said first plurality of coils, and each coil of said first plurality of coils canted along said first centerline; a second plurality of coils each having a second coil major axis, a second coil minor axis and a coil center defined by the intersection of said second coil major and minor axes; a second centerline defined by the plurality of coil centers resulting from said second plurality of coils, and each coil of said second plurality of coils canted along said second centerline; wherein the coils of said first plurality of coils alternate with the coils of said second plurality of coils according to an alternating pattern; wherein the spring ring comprises an inner perimeter defined by said first plurality of coils only; said inner perimeter having a minimum reachable inner perimeter, which is defined as a minimum value that can be reached without the first plurality of coils having butted; said minimum reachable inner perimeter being smaller than a minimum reachable inner perimeter of a constant coil cross section canted coil spring having a similar total number of coils and coil major and minor axes similar to those of either said first or second pluralities of coils; wherein a portion of at least one coil of said second plurality of coils is moved through at least one coil of said first plurality of coils under a state of deflection of said coil spring ring; and wherein only the first plurality of coils each have a depressed outer portion depressed towards the interior of the first plurality of coils along the inner perimeter defined by the first plurality of coils and another depressed outer portion depressed towards the interior of the first plurality of coils along an outer perimeter defined by the first plurality of coils.