Spring operated roller blind system with tension spring adjusting mechanism and locking element for said system
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United States of America Patent
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app pub date -
Oct 27, 2016
filing date -
Oct 29, 2015
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Abstract
A roller blind system including a roller blind (1) having a roller shaft (4) through which a central rod (6) extends and to which a flexible sheet member is attached. The roller blind is provided with two bracket connectors (21) arranged for releasable coupling to mounting brackets (20). The roller blind is spring operated and includes a tension spring (5) fixedly connected to the central rod and to the roller shaft and a tension adjusting mechanism (10) for adjusting the tension of the tension spring. The tension adjusting mechanism includes an adjusting wheel (11) and an adjusting spring (15) for adjusting the rotational position of the central rod, first engaging means (13) arranged on the adjusting wheel for pushing the adjusting spring in a relaxed configuration and second engaging means (18) connected to the central rod for pushing the adjusting spring in a tightened configuration.
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