JPS63141340U

JPS63141340U -

Info

Publication number: JPS63141340U
Application number: JP1987033761U
Authority: JP
Priority date: 1987-03-10
Filing date: 1987-03-10
Publication date: 1988-09-19

Description

[Brief explanation of drawings]

第１図は本考案の好適な一実施例を示す概略側
面図、第２図は従来技術による電磁クラツチの一
例を示す概略側面図である。図面中の符号、１０：本考案の圧電クラツチ、
１１：第１の回転デイスク、１２：固定デイスク
、１３：第２の回転デイスク、１４：圧電素子、
１６：バネ、１７：ボール、１８：スリーブ、Ｇ
：第１の回転デイスクと第２の回転デイスク間の
隙間。 FIG. 1 is a schematic side view showing a preferred embodiment of the present invention, and FIG. 2 is a schematic side view showing an example of an electromagnetic clutch according to the prior art. Reference numeral 10 in the drawings: piezoelectric clutch of the present invention;
11: first rotating disk, 12: fixed disk, 13: second rotating disk, 14: piezoelectric element,
16: Spring, 17: Ball, 18: Sleeve, G
: Gap between the first rotating disk and the second rotating disk.

Claims

[Claims for Utility Model Registration] (1) A first rotary disk attached to the shaft end of a driven part of a device, etc., and a first rotary disk fixed to a fixed part of the device,
A piezoelectric element that expands in the direction of the drive shaft when a voltage is applied, a fixed disk attached to the front end of the piezoelectric element in the axial direction, and a fixed disk rotatably attached to the fixed disk via a plurality of balls. a second rotating disk; and a spring that constantly presses the second rotating disk against the fixed disk;
A predetermined gap is provided between the first rotating disk and the second rotating disk when no voltage is applied to the piezoelectric element, and when a voltage is applied, the first rotating disk rotates during the second rotation. A piezoelectric clutch is characterized in that it frictionally engages with a disk to transmit torque. (2) Utility Model Registration The piezoelectric clutch according to claim 1, wherein the frictional engagement is released when a voltage is applied to the piezoelectric element.