| 摘要 |
A flexural joint, in particular a flexural thrust joint suitable for precision stages and application requiring vacuum is disclosed herein. A two degree of freedom joint comprises: two joint elements, each with a load bearing surface; two flexures attached between the elements, such that the flexures are under tension when the joint is subject to a compressive load. The flexures are long and thin, such that they can twist and bend, giving the joint two degrees of freedom. A three degree of freedom joint comprises: a first joint element with a load bearing surface; a second joint element with a second load bearing surface; a third joint element; two first flexures attached between the second and third elements; two second flexures attached between the third and first elements, such that both the first and second flexures are under tension when the joint is subject to a compressive load. Either one or both pairs of flexures are long and thin, such that they can twist and bend, giving the joint three degrees of freedom.
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