| 摘要 |
<p>@ A measuring or contact detecting head comprises devices with feelers (70, 74, 75) fixed to a movable arms (62-64), fulcrum means (65-67) for permitting movements of the arms (62-64) and transducer or switch means (95) for electrically detecting these movements.</p><p>In order to perform, precisely and accurately, multiple contemporaneous checkings, and to render easy and quick the operations for assembling the measuring means to be used for these applications, the head substantially comprises an integral member (60) that defines, in addition to a support portion (61), the movable arms (62-64) and the fulcrum means (65-67) and the latter (65-67) are aligned for defining a single axis of rotation for the movable arms (62-64).</p><p>There are also foreseen devices (76,77) for adjusting the spatial position of the feelers (70, 74, 75).</p><p>In particular, this head is used in manual snap gauges for simultaneously checking a plurality of diameters.</p> |
