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Opening mechanism for roller blinds/shutters - is operated by sprocket and pinion which pivot to follow blind
Opening mechanism for roller blinds/shutters - is operated by sprocket and pinion which pivot to follow blind
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机译:滚动百叶窗/百叶窗的开启机构-由链轮和小齿轮操作,该链轮和小齿轮枢轴转动以跟随百叶窗
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摘要
A blind/shutter (10) rolls round horizontal drum 11 supported by carriages (13 & 14) and by stay-plates (15 & 16). Shutter (10) which is made of slats 10A fastened together slides in runners (20 & 21) fixed to walls. Drum (11) is connected to control mechanism (30) which comprises sprocket-wheel (31) joined to drum (11) and a pinion (32) which engages the wheel and is rotated from below by rods (33). Control mechanism is supported on a block oscillating around frum's rotation axis. The mechanism therefore follows the rolling or unrolling of the blind and is always facing right direction regardless of the position of the blind shutter.
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