| 摘要 |
PROBLEM TO BE SOLVED: To reduce a quantity of components protruding in object luminous flux. SOLUTION: A reciprocating mechanism comprising: an energizing member to energize an object which is subject to reciprocation in one direction of the reciprocation; and a contact member to drive the object in the other direction of the reciprocation by contacting the object. An energizing force of the energizing member is released when the contact member drives the object in the other direction of the reciprocation. In the reciprocating mechanism, a part of the object is placed between the energizing member and the contact member with gaps. The energizing member is separated from the part of the object when the contact member drives the object by contacting a part of the same. The contact member may be separated from the part of the object when the energizing member energizes the object by contacting the part of the same. COPYRIGHT: (C)2012,JPO&INPIT |
