Pusher, puller loader, unloader, and working device

摘要

A pusher 13 has a leaf spring 12, a driving section 22, a direction changing section 23, and guides 24. The driving section 22 nips the leaf spring to longitudinally advance and retract it. Advancement of a fore end of the leaf spring 12 in a pushing direction causes the object facing the leaf spring to be pushed from a first position to a second position. A direction changing section 23 bends the tail end of the leaf spring relative to the fore end so as to change the direction of advancement and retraction. Guides 24 guide the fore and tail ends with respect to the direction changing section.