| 摘要 |
The trimmer is constructed with a principal triangular blade (1) forming three teeth (3) set 120 degrees apart (2) in the same horizontal plane. Each of the teeth has a sharpened length on each side and corner, and is pierced and threaded to form a hole (4). The hole is threaded to take a screw (7) acting as an axis for a blade (5) which is mounted so as to be free to rotate. The trimmer also carries a standard reel with three nylon lines, which is secured to the blades' support by means of a crenellated washer (12).
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