| 摘要 |
PURPOSE:To surely absorb a shock when a mounting head supported by a cylindrical cam is moved along the cam even when the cam is uneven. CONSTITUTION:A turntable 13 is turned. A mounting head 15 is moved when cam followers 26, 27 are rolled along a cylindrical cam 29. While it is being moved, the lower cam follower 27 presses the rear surface of the cam 29 by means of a spring. As a result, a shock is absorbed while it is being moved. |
