| 摘要 |
<p>PURPOSE:To facilitate the attachment and detachment of a form to and from a rotary drum, by operating a form front-end retainer and a form rear-end retainer in cooperation with spring displacing force through a link mechanism. CONSTITUTION:On the surface of a rotary drum 10 which performs rotary scanning while holding a form 11, a form front-end retainer 1 for retaining the front end of the form, and a form rear-end retainer 2 retaining the rear end of the form 11 are provided. A spring 8 displaces the front end of the form to the position of the front-end retainer which presses the from against the surface of the drum 10, and a spring 6 displaces the rear end to the position of the rear-end retainer which presses the rear end against the surface of the drum. Further, a lever 4 elevates the form to a release position against the spring displacing force of the spring 8, and a lever 3 elevates the rear-end retainer 2 to the release position against the spring displacing force of a spring 9. Further, a link 5 couples with the opening and closing operation of the lid 12 of the drum 10 to operate a lever 4.</p> |
