| 摘要 |
PURPOSE:To make efficiency of apparatus higher by building rotor members in a housing in the only state where said members are pressure-welded from both sides by a pair of driving elements. CONSTITUTION:To constitute a surface-wave motor, a driving element 4 as a stator formed by sticking of an annular elastic body 1 to a piezoelectric element 3 and a driving element 41 as a stator formed by sticking of an annular elastic body 11 to a piezoelectric element 31 are built in a housing 12 of said motor. Between said pair of driving elements 4, 41, a pair of rotor members 2, 21 with a buffer member 10 held between are overlapped axially and fitted to a rotatably supported rotating shaft 13 by a key 15. Further, the driving element 41 and an end face 12b of the housing 12 are pressure-welded together by building a wave washer 8 therebetween. Thus, rotor members 2, 21 are built in the housing 12 in a state where they are pressure-welded from both sides by a pair of driving elements 4, 41, and rotated by application of a given AC voltage. |
