| 摘要 |
<p>Bookbinding machine with a horizontal rotating table carrying pairs of clamping jaws that are passed in front of the working places, there being a cam for opening and closing the pairs of clamping jaws (16) which is coaxial with the table, characterized in that the axis of the rotating table is a shaft (13), to which the rotating table (2) is connected rotatingly by means of friction elements (11, 14, 15), in that a second cam (44) is rigidly connected to the shaft (13), said cam (44) actuating a retention element (40) into a locking position, whenever a pair of clamping jaws is in position for inserting the bookblocs, in order to stop the rotation of the table for a short time. </p> |
