To especially well execute cutting along a curvature having a small radius of curvature and to cut a relatively accurate circular contour with high repeating accuracy without requiring other auxiliary means.
In a jig saw equipped with a reciprocally driven saw body and stripe pieces 34, 74 coinciding with the saw body 28, a guide means obstructing the jamming of the saw body in a cutting passage is provided in order to guide the saw body 28 in the cutting passage cut by a saw and the stripe piece 34 is arranged so as to be resolvable centering around the revolving axial line parallel to the saw body in order to obstruct jamming and, in this case, the stripe pieces prescribe the extension, especially, curvature of the cutting passage to be formed as the guide means.
| WO/1991/012942 | REMOVABLE AUTOMATIC RECTILINEAR GUIDE DEVICE FOR A PORTABLE SAWING OR CUTTING MACHINE |
| WO/2011/047904 | MACHINE TOOL |
| JP3513020 | CUTTING TOOL |
ARUDO DEI NIKORUANTONIO
URUSU RIYUTSUPU
