| 摘要 |
A driving apparatus comprises: an electro-mechanical conversion element; a driving shaft that reciprocates in response to an extension and contraction of the electro-mechanical conversion element; a driven member, frictionally engaged with the driving shaft, that moves along the driving shaft by reciprocating the driving shaft; and at least one shaft support portion each including a groove portion that accommodates therein the driving shaft and a spring member that biases the driving shaft accommodated in the groove portion to a direction of the groove portion.
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