| 摘要 |
<p>A snap fit is provided between a control knob (1) and cable housing (13) by a pair of facing protruding lips (3 and 9), one each on the control knob (1) and the end of the cable housing (13). One lip (3 and 9) passes over the other lip (9 or 3) in close abutment when the control knob (1) is fully depressed.</p> |
