JP2013179770A5 - - Google Patents

Claims (9)

A shaft member extending in one direction;
The contact portion has a contact portion that contacts the shaft member, and a combination of longitudinal vibration that reciprocally vibrates in the extending direction of the shaft member and lateral vibration that reciprocally vibrates in a direction orthogonal to the extending direction. A drive unit for elliptical vibration;
A shaft member drive mechanism comprising: an urging portion that urges the drive portion to the shaft member. The shaft member driving mechanism according to claim 1 which cross section perpendicular to the extending direction of the shaft member is perforated circular. The shaft according to claim 2, wherein a direction in which the biasing portion is biased faces the center of the circular shape, and a direction of a driving force applied to the shaft member by the contact portion faces the center of the circular shape. Member drive mechanism . The abutment arranged pair belly of the elliptical vibration, the shaft member drive according to any one of claims 1 to 3, the biasing force of the biasing unit acts equally on each of the abutting portions mechanism. The shaft member drive mechanism according to any one of claims 2 to 4, further comprising a bearing portion that supports the shaft member by a V-groove at a position facing the drive portion. The shaft member drive mechanism according to any one of claims 1 to 4 , wherein a pair of the drive units are arranged, and the shaft member is sandwiched between the contact portions. The shaft member drive mechanism according to any one of claims 1 to 6 , wherein the shaft member is made of stainless steel, and the contact portion is made of plastic. A support portion for supporting the driving portion;
The drive unit has a protrusion that protrudes in a direction perpendicular to the plane of elliptical vibration,
The shaft member drive mechanism according to any one of claims 1 to 7 , wherein the support portion supports the drive portion by fixing the protruding portion. A shaft member drive mechanism according to any one of claims 1 to 8 ,
An optical apparatus comprising: an optical member that is coupled to one of the shaft member and the drive unit and moves along the extending direction of the shaft member by the drive unit.