Drive device and information recording and processing device

Details Drive device and information recording and processing device Drive device and information recording and processing device

1997-12-17

1999-11-16

Ramirez, Nestor

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310323, 310328, H01L 4108

Patent

active

059863838

ABSTRACT:
A drive device includes a base and a driven member placed on the base. The driven member is capable of rotation on the base and has a circular surface following the direction of rotation. A roller member contacts the outside or inside of the circular surface of the driven member and is supported to be capable of rotation together with the driven member. A vibration actuator contacts the roller member and drives the roller member to rotate. A pressing member presses the vibration actuator in a direction substantially perpendicular to the axis of rotation of the driven member. The pressing member presses the vibration actuator against the roller member, which in turn is pressed against the driven member.

REFERENCES:
patent: 4755705 (1988-07-01), Holum
patent: 5225734 (1993-07-01), Nakanishi
patent: 5332941 (1994-07-01), Honda
patent: 5852336 (1998-12-01), Takagi
patent: 5866970 (1999-02-01), Oone et al.
"Piezoelectric Linear Motors for Application to Driving a Light Pick-Up Element", Tomikawa et al., 5th Symposium on Dynamics Related to Electromagnetic Force, Collected Pagers, pp. 393-398, Jun. 9-11, 1993 (partial translation).
"Vibiromotors For Precision Microrobots", K. Ragulskis et al., Hemisphere Publishing Corp. (1988), pp. 5-8, 11-14, 270-272.

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