发明名称 Pulley for extension cord reel
摘要 A pulley for use in storing an electrical extension cord includes a pulley body having a generally tubular cord winding body with a radially outwardly extending flange formed at one end of its exterior surface. A generally disk-shaped flange plate is releasably attached to the other end of the winding body by locking tabs formed on the winding body which cooperate with apertures formed in the flange plate. Typically, the pulley body is formed of a nylon material and the flange plate is formed of steel. The winding body includes an internal wall and an aperture is formed in the wall and another aperture is formed in the flange plate for rotatably mounting the pulley on a supporting shaft. A coil spring has one end attached to the shaft and the other end attached to the winding body for automatically rewinding the extension cord.
申请公布号 US4726538(A) 申请公布日期 1988.02.23
申请号 US19860895232 申请日期 1986.08.11
申请人 ALERT STAMPING & MFG. CO., INC. 发明人 KOVACIK, JAMES D.;KOVACIK, JAMES W.;BLANCH, THOMAS J.;BLANCH, PAUL S.
分类号 B65H75/14;B65H75/22;B65H75/44;(IPC1-7):B65H75/48 主分类号 B65H75/14
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