| 摘要 |
<p>The cutting tool comprises two parallel supports (2 and 3) defining between them a space (4) corresponding to the thickness of the cutting blade (5). The device has two symmetrical holes (6) identical to the profile of the gutter (7). A guiding cradle is defined by holes (6) with an upper convex contour (6b) and lower concave contour (6a) of a movable part. The movable part is joined at one end to a fixed axis of rotation (8) on a sleeve (9). <IMAGE></p> |
