| 摘要 |
A link mechanism in a pushbutton-operated waveband or station selector in which a link with a plurality of arms is pivotably fitted on a pivotal shaft; in order to couple to these link arms members which move in different directions, each of the members being provided with a guide means extending perpendicular to the moving direction of the member, a guide member provided at each of said arms of the link being slidably engaged with the guide means; the angle formed between each of the link arm and the moving direction of each member coupled with the arm being so set to always be greater or smaller than a right angle within the moving range of each member that no point of inflection will occurs in the moving orbit of the guide member of each arm within the guide means of each member. |
