Spring with a plurality of elements, and actuator including such a spring

A spring (3, 3') comprising a plurality of elements (30), each element (3) comprising a rigid portion (31) and a flexible beam (32), the extremities (320, 321) of the flexible beam being supported by the rigid portion (31), the flexible beam (32) having a single stable position, so that the flexible beam can be deformed when a pressure is exerted between said extremities in the direction of the rigid portion (31), and returns to said single stable position when the pressure is released, and wherein the rigid portion (31) of at least one element (30) is in contact with the flexible beam (32) of the next element between said extremities (320, 321) of the flexible beam (32), so that the spring has a negative stiffness over an operating range.The arrangement ensures a pure radial compression/expansion of the spring.

May 31 2019
Alternative title(s) : (fr) Ressort à plusieurs éléments, et actionneur comprenant un tel ressort
Application number PCT/IB2018/05926
Other identifiers:
EPO Family ID: 62196278
Patent number(s):

 Record created 2019-06-05, last modified 2020-10-29

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