| 摘要 |
1409891 Roller blinds CLOPAY CORP 31 Oct 1972 [27 Dec 1971] 50200/72 Heading A4B A roller blind comprises a spring 19 with one end (not shown) connected to a fixed member 21, the other end being formed with stop means cooperating with a recess 33 in a body 18 connected to a roller 10, the spring having an extension (37) from the stop means towards the roller wall. Dowel 21 has one end fixed to member 16 which non-rotatably engages a bracket, and the other end supported in a member (22). Spring 19 is threaded on to body 18 and recess 33 is in the thread line. Ball 24 and recesses 25 form a clutch. |
