A flexure mechanism for an interface device that interfaces a user with a computer system. An interface device includes a manipulandum physically contacted by the user. A five-bar closed-loop mechanism is coupled to the manipulandum to provide two rotary degrees of freedom to the manipulandum. The mechanism...http://www.google.com.hk/patents/US7193607?utm_source=gb-gplus-share專利 US7193607 - Flexure mechanism for interface device
