| 摘要 |
<p>The wrist support is for use with an office machine with a keyboard such as a calculator, etc. It has a base plate (16), in relation to which a support strip (12) is adjustable for height by one or more rotary components (14) coupled to the base plate and screwing in and out of the strip. The latter can be oblong and of plastics, while the rotary component can have an externally threaded portion with a wheel fixed at one end, working in a tapped hole in the strip and passing through it from top to bottom. The rotary components may be secured against accidental loosening in the strip.</p> |
