Coil spring and method of fabrication thereof
US11248674B2 · kind B2 · utility
0Cited by
4References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 16, 2018 |
| Grant date | Feb 15, 2022 |
| Priority date | — |
| Expiry date | Oct 2, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2238/028
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A composite spring made of a wire of a longitudinal axis curved around a spring axis in a winding direction and a method of fabrication thereof, the spring, the wire comprising a core; and fibers layers wound around the core, and an angular positioning, relative to the spring axis, of each one of the fiber layers being selected, along a length of the core, depending on the winding direction of the wire about the spring axis, to adjust at least one of: high natural frequency of the spring, resistance to buckling and resistance to tensile and compressive stress components induced by a compressive load on the spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.