JPH0410594U

JPH0410594U -

Info

Publication number: JPH0410594U
Application number: JP4946790U
Authority: JP
Priority date: 1990-05-11
Filing date: 1990-05-11
Publication date: 1992-01-29

Description

[Brief explanation of the drawing]

第１図は本考案の超音波モータの断面図である
、第２図は同超音波モータの円錐状支持部材にお
いて、その外周面を平面状とした支持部材の斜視
図、第３図は上記円錐状支持部材において、その
外周面を凹面状とした支持部材の斜視図、第４図
は上記円錐状支持部材において、その外周面を凸
面状とした支持部材の斜視図である。１……固定子、２……ロータ、３……圧電素子
、６……張出し部、７……支持部材、７ａ……小
径部、７ｂ……大径部、７ｃ……平板リング、７
ｄ……中空管、８……ケーシング。 Fig. 1 is a sectional view of the ultrasonic motor of the present invention, Fig. 2 is a perspective view of the conical support member of the ultrasonic motor with its outer peripheral surface being flat, and Fig. 3 is the above-mentioned conical support member. FIG. 4 is a perspective view of a conical support member having a concave outer circumferential surface. FIG. 4 is a perspective view of a conical support member having a convex outer circumferential surface. DESCRIPTION OF SYMBOLS 1... Stator, 2... Rotor, 3... Piezoelectric element, 6... Overhanging part, 7... Supporting member, 7a... Small diameter part, 7b... Large diameter part, 7c... Flat plate ring, 7
d...Hollow tube, 8...Casing.

Claims

[Claims for Utility Model Registration] 1. A piezoelectric element is provided on one surface of a ring-shaped stator to generate a traveling wave in the stator, and a ring-shaped rotor is provided on the other surface of the stator. In the ultrasonic motor in which the rotor can be rotated by the traveling wave by press-welding the stator, the ring-shaped support member that holds the stator is formed of a flat ring or a conical hollow tube between the small diameter part and the large diameter part. An ultrasonic device characterized in that the stator is formed into a connected shape, the inner circumference of the stator is fitted and fixed to the outer circumference of the small diameter part of the support member, and the large diameter part of the support member is fixed to the inner circumference of the cylindrical casing. motor. 2. The ultrasonic motor according to claim 1, wherein a thin protruding portion is provided on the inner periphery of the stator, and the inner peripheral edge of the protruding portion is fitted and fixed to the outer periphery of the small diameter portion of the support member.