| 摘要 |
The soft plate (1) is anchored in the neck support by a shaft. under the plate lower edge is a soft unit in body contact comprising two solid rubber balls. The appts. is driven by an electric motor of the so-called worm gear type. A simple mechanism converts the motor rotation into a swinging movement. The appts. can also be used as a neck support with electrical variable distance between the neck and the chair back. |
