SUPERMAGNETOSTRICTIVE ACTUATOR,申请号JP19970315582-传众专利搜索

SUPERMAGNETOSTRICTIVE ACTUATOR

申请公布号：JPH11150019(A)

申请号：JP19970315582

申请日期：1997.11.17

申请公布日期：1999.06.02

申请人：

MORITEX CORP

发明人：OGOSHI AKIO;MATSUI YASUHIRO;MAKINO TAKAAKI

分类号：H01F7/16;H01L21/60;H01L41/12

主分类号：H01F7/16

摘要：PROBLEM TO BE SOLVED: To drive this device with low voltage, to increase opening and closing responding speed, to simplify the fine adjustment of a clamp voltage, and to ensure large opening and closing stroke, despite a compact device. SOLUTION: When a magnetic field is generated by a solenoid coil 4 of an expansible device 11 stereoscopically mounted so as to be positioned immediately above a clamper 3, and a supermagnetostrictive rod 5 is extended, the displacement is transmitted through a power transmitting mechanism 13 to the clamper 3, and clamp pieces 2a and 2b are opened. Then, the displacement of the supermagnetostrictive rod 5 is used as a drive source, so that the opening and closing responding speed can be increased, and low voltage driving can be attained. Also, when the magnetic field is impressed to a direction for contracting the supermagnetostrictive rod 5, the clamp pieces 2a and 2b are strongly closed by the energizing force, and the clamp pressure can be easily adjusted according to the contracting amounts of the supermagnetostrictive rod 5. Moreover, the extending device 11 is stereoscopically arranged, so as to be positioned immediately above the clamper such that a supermagnetostrictive actuator can be shortened in the longitudinal direction to be miniaturized.