| 摘要 |
PURPOSE:A holder for laver sheet screen in which one end of the screen is removably set to the holder to permit the release of laver sheets from the screeens without the damage to laver sheets and enable the prompt exchange of screens. CONSTITUTION:The holder 1 consists of a pair of horizontal bars 21, 22 and three vertical bars 31, 32, 33 and two screens M are fixed to the horizontal bar 21 at one end with clips 4. At the other end of the screen, a hollow tube of a larger diameter 5 is bound and a steel rod 6 is inserted into the hollows. Clips 7 are set on the horizontal bar 22 where the vertical bars 31 and 33 are connected to the bar 22 and both ends of the steel rod 6 are removably inserted between these clips and the vertical bars 31 and 33. Further, a spring 8 is connected to the pin 14 almost on the middle point between vertical bars 31 and 33 and its end 8' stretches out of the horizontal bar 22. The top end 8' is forcibly pushed down with a pusher to make the rod 6 removable from between the vertical bars 31 and 33 and the clips 7. |
