| 摘要 |
<p>The retainer pin device on a spring roller blind, is esp. applicable to a spring-wound motor assembly, with driving spring linked to a pin by a ball coupling. The pin device (10) has one part (11) engaging in a fixture bracket sited outside, and another part (14) forming part of the blind coupling. The spring retainer unit has one part acting in conjunction with the pin device, a second part forming the remainder of the coupling and a third part holding a driving spring firm. A coupling element operates in conjunction with the two parts forming the coupling. There are radially protruding pieces (13) projecting sideways, to hold both devices together.</p> |
