Compliant continuous-locking micro mechanism

Conference Paper (2016)
Author(s)

S. Van Bracht (Flexous BV)

G. Semon (TAG Heuer)

Just Herder (TU Delft - Mechatronic Systems Design)

Nima Tolou (TU Delft - Mechatronic Systems Design)

Research Group
Mechatronic Systems Design
DOI related publication
https://doi.org/10.1109/MARSS.2016.7561751
More Info
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Publication Year
2016
Language
English
Research Group
Mechatronic Systems Design
Pages (from-to)
1-7
ISBN (electronic)
978-1-5090-1510-8

Abstract

Micro-electromechanical systems (MEMS) often require tuning to correct for fabrication errors such as changed dimensions or to adapt for a different scenario such as changed temperature. To prevent continuous power consumption for maintaining system behavior, a locking system can be added which does not require any power during operation. A new comb finger locking mechanism design is proposed using an orthogonal spring force on a moving shuttle to generate a locking force in the motion direction through friction. Multiple contact points are placed in line with the spring force to increase the locking force in a volumetric efficient way. The spring is optimized for high locking force but low sensitivity to fabrication errors. Mechanism design is illustrated and successfully tested using a case study example.

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