发明名称 WINDOW SHADE BRAKING MECHANISM
摘要 <p>ROLLER SHADE BRAKING MECHANISM A roller shade braking mechanism of the type including a pair of outwardly biased braking shoes for engaging a cylindrical brake drum. The brake shoes are urged into braking engagement by an axially positionable wedge which cams against the interior surfaces of the brake shoes to thereby produce a constantly applied braking force. Externally accessible adjustment means are also provided for adjusting the pressure exerted by said brake shoes.</p>
申请公布号 CA1082587(A) 申请公布日期 1980.07.29
申请号 CA19780298058 申请日期 1978.03.02
申请人 JOANNA WESTERN MILLS COMPANY 发明人 DONOFRIO, JOHN D.
分类号 E06B9/90;(IPC1-7):06B9/24 主分类号 E06B9/90
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