发明名称 Trimmer Head Spool For Use In Flexible Line Rotary Trimmer Heads Having Improved Line Loading Mechanism
摘要 An improved spool construction for carrying a length of cutting line in a trimmer head housing on a flexible line rotary trimmer wherein the spool comprises separately molded upper and lower sections of single piece construction that are pressed together in a snap fitment to define a cylindrical body portion, at least one flange projecting radially therefrom and a line receptor channel having a smooth interior surface that traverses the spool and communicates opposed open outer channel ends in the flange that are radially alignable with opposed line openings in a housing skirt, with an open channel portion in a lower spool surface to provide access to the channel intermediary of the open channel ends with the spool operatively connected to the housing for line loading and replacement without having to interrupt the operative connection between the spool and the housing.
申请公布号 US2011119932(A1) 申请公布日期 2011.05.26
申请号 US201113021695 申请日期 2011.02.04
申请人 PROULX MANUFACTURING, INC. 发明人 PFALTZGRAFF JAMES R.;PROULX RICHARD A.
分类号 A01D34/416 主分类号 A01D34/416
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