| 摘要 |
<p>The feed advances a stick of adhesive to be liquified by electric heating. It has two elements, one on a pivot. On one side is a trigger and, on the opposite side, a rigid fork piece gripping a hollow cylinder. The cylinder has a collar shoulder and two flexible tongues are fixed in it and on part of the cylinder. The collar exterior has a chamfer on which the fork ends press. The trigger advances the stick and returns it on trigger release, actuated by a spring.</p> |
