发明名称 Winding tool for torsion spring for sectional garage door
摘要 A winding tool for tightening a torsion spring for a sectional overhead door. The winding tool features two half hub assembles that wrap around an overhead door shaft, wherein a translational sprocket is disposed on the hub assemblies. The hub assemblies connect to the winding cone of a torsion spring via fingers that engage the hub assemblies. A winding box is removably attached to the hub assemblies. The winding box features a worm gear that engages the translational sprocket. A handle bar can be rotated with a drill to cause rotation of the worm gear. Rotation of the worm gear causes rotation of the translational sprocket and ultimate winding of the torsion spring.
申请公布号 US8567567(B1) 申请公布日期 2013.10.29
申请号 US20100873985 申请日期 2010.09.01
申请人 TURNER ERNEST SCOTT;TRUJILLO JERRY E. 发明人 TURNER ERNEST SCOTT;TRUJILLO JERRY E.
分类号 F03G1/00;E05F11/00 主分类号 F03G1/00
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