WINDING SHAFT UNIT FOR RECEIVING A ROLLER BLIND SHEET
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United States of America Patent
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Issued Date -
Sep 15, 2016
app pub date -
Mar 11, 2016
filing date -
Mar 11, 2015
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Abstract
A winding shaft unit for receiving a roller blind sheet in a wound-up condition, wherein the winding shaft unit has a winding tube extending in the direction of a rotation axis and the winding shaft unit has at least one bearing bush inserted into the winding tube, the bush being a terminal closure of the winding tube, wherein the bearing bush has, on a circumferential exterior surface, a contact zone for resting on an interior surface of the winding tube and has, on a circumferential interior surface, a bearing zone for cooperation with a bearing pin. The bearing bush is made partially of a first material and partially of a second material differing from the first material.
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