| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a spring-type roll screen that achieves simple operability by having a rotary part structurally improved and simplified from conventional sprig-type roll screens, and can always follow repeated up/down movements of a hand holding the lower-end cross bar of the roll screen and moves in response to the movements of the hands like an integral unit by having conflicting functions of rotating fast and stopping instantly. <P>SOLUTION: In a spring-type roll screen moving upward/downward in response to movements of a hand, a roll 5 is fitted with a washer 15 and hooks 3/3' at its each end. A bead 2, being provided with hook holes 10/10' that engage with the hooks 3/3', has a cylindrical-shaft hole 11 and a shaft-rod hole 12, into which a cylindrical shaft 13 and a shaft rod 4 are inserted respectively. The end part of the roll 5, the bead 2, and a bearing 1 are integrated into one unit, and the roll 5 is allowed to rotate or stop by the vertical movements of the shaft rod 4. <P>COPYRIGHT: (C)2012,JPO&INPIT |
