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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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