Patent ID: 6692214
Filing Date: 2004-02-17
Classification: B65G,H05K

Abstract:
A pusher for pushing an object from a first position to a second position, the pusher comprising:a leaf spring, a driving section for nipping the leaf spring to advance and retract it in a longitudinal direction so that advancement of a fore end portion of the leaf spring in a pushing direction causes the object facing the fore end portion of the leaf spring to be pushed from the first position to the second position, a direction changing section for bending a side of a tail end portion of the leaf spring being advanced and retracted relative to a side of the fore end portion extending in the pushing direction so as to change directions of advancement and retraction of the leaf spring at the direction changing section, a position detecting section for detecting a position of the leaf spring, and an abnormality detecting section for detecting an abnormal action of the leaf spring on the basis of a position detection signal from the position detecting section.