Ultrasonic tape guide apparatus
US5425487A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1994 |
| Grant date | Jun 20, 1995 |
| Priority date | — |
| Expiry date | Mar 3, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S242/907
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A tape guide device includes a guide member of a cylindrical configuration for guiding a tape, a ultrasonic vibrator secured to the guide member for vibrating the guide member in standing-waves configuration and a supporting member for supporting the guide member. A rotation preventing member for preventing a rotation of the guide member is formed on one of a pair of tape position restricting members in the width direction of the tape, whereby the number of the assembly parts of the tape guide device is reduced and a mechanism thereof is simplified. Therefore, the tape guide device can be miniaturized. Also, the structure and the shape of the ultrasonic vibrator are selected so that, even when the tape guide device is miniaturized, a coefficient of friction between the tape and the guide member becomes an optimum value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.