String trimmer head and method

Details String trimmer head and method String trimmer head and method

A - Human Necessities

01

D

26/24, 56/36

A01D 34/84 (2006.01) A01D 34/416 (2006.01)

Patent

CA 1299880

ABSTRACT A fixed line string trimmer head includes a pair of overlying sheet steel circular plates welded together to form two or more pairs of partially circular passages between the plates opening at each end into a recess extending continuously at and between the periphery of the plates. The passages are formed by recesses formed in the plates in registry with each other while the peripheral recess is formed by outwardly flared portions of the plates. The lower plate is also formed with an integral bulbous or ball portion to guide the trimmer head on the ground during use. the upper plate is provided with a connector sleeve centered with respect to the axes of rotation of the head for attaching the head to a drive shaft. The sleeve has internal threads for this purpose and a-so to permit an adapter to be utilized to allow the head to be attached to various sized drive shafts. A discrete length of plain cutting line is placed into both passages by simply inserting the ends of the line into the adjacent ends of the passages and sliding the opposite end portions through the passages until they emerge from the remote ends of the passages with an intermediate portion of the line engaged against a land located between the adjacent passage ends.

558447

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