发明名称 |
VIBRATION TYPE ACTUATOR, VIBRATOR, AND VIBRATOR MANUFACTURING METHOD |
摘要 |
A vibration type actuator providing a satisfactory actuator performance even when an increase in speed is achieved and having a contact spring. The actuator includes a vibrator equipped with an electrical-mechanical energy conversion element, an elastic member to which the electrical-mechanical energy conversion element is fixed, and a protrusion provided on the elastic member. The vibrator can generate an elliptic movement in the protrusion. A driven body is configured to come into contact with the protrusion and to make a relative movement with respect to the vibrator. The protrusion includes a contact portion having a contact surface contacting the driven body, a continuous side wall portion protruding with respect to one end surface of the elastic member and forming a hollow structure, and a connection portion connecting the contact portion and the side wall portion and exhibiting flexibility in a direction normal to the contact surface. |
申请公布号 |
US2015155798(A1) |
申请公布日期 |
2015.06.04 |
申请号 |
US201514612151 |
申请日期 |
2015.02.02 |
申请人 |
Canon Kabushiki Kaisha |
发明人 |
Kimura Atsushi |
分类号 |
H02N2/00 |
主分类号 |
H02N2/00 |
代理机构 |
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代理人 |
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主权项 |
1. A vibration type actuator comprising:
a vibrator equipped with an electrical-mechanical energy conversion element, an elastic member to which the electrical-mechanical energy conversion element is fixed, and a protrusion provided on the elastic member, the vibrator being configured to generate an elliptic movement in the protrusion; and a driven body configured to contact with the protrusion and to move relatively to the vibrator, wherein the protrusion includes a contact portion having a contact surface contacting the driven body, a continuous side wall portion protruding with respect to one end surface of the elastic member and forming a hollow structure, and a connection portion connecting the contact portion and the side wall portion and exhibiting flexibility in a direction normal to the contact surface. |
地址 |
Tokyo JP |