29-03-2017 дата публикации
Номер: KR101721008B1
The present invention relates a device and a method to precisely adjust a knife for a side trimmer. A spring, installed on an inner wall of an upper housing, regularly provides acting force to push a move block to the rear side through elasticity, and the move block is supported by a cam while being pushed to the rear side, and thus a move sleeve, an upper shaft, and an upper knife, which are sequentially connected with the move block, are moved forward or backward by the cam without an influence by backlash. As such, the present invention is capable of significantly improving the reliability of functions of a trimmer by enabling precise control for the width of ″a″ which is a cutting gap of the upper knife. To achieve the purpose, the present invention comprises: upper and lower housings (12,14) combined by horizontally penetrating a main column (8); upper and lower shafts (16,18) combined with the upper and lower housings (12,14) respectively to be rotatable; upper and lower knives (42,44 ...
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