초록 ▼

A cutting tool comprising two cutting members positioned side by side and each having a toothed cutting edge of substantially the same shape. The cutting member being mounted on respect eccentrics of a drive shaft coupled to a motor. The cutting member being guided by respective control links so tha

A cutting tool comprising two cutting members positioned side by side and each having a toothed cutting edge of substantially the same shape. The cutting member being mounted on respect eccentrics of a drive shaft coupled to a motor. The cutting member being guided by respective control links so that the cutting edge of each cutting member prescribes simultaneously in the plane of the toothed edge, simultaneous oscillatory movements in the direction of the toothed edge and in the direction of right-angles thereto. The corresponding movements of the respective cutting members being out of the phase, preferably by 180°and the teeth of each cutting edge being adapted to each cut when moving individually in the direction of the toothed edge.

대표청구항 ▼

A cutting tool comprising: two juxtaposed cutting members each having a toothed cutting edge of a substantially same shape and extent, each of said cutting members having a drive portion extending in a direction lateral to the cutting edge, said drive portions being in a juxtaposed relation; a drive

A cutting tool comprising: two juxtaposed cutting members each having a toothed cutting edge of a substantially same shape and extent, each of said cutting members having a drive portion extending in a direction lateral to the cutting edge, said drive portions being in a juxtaposed relation; a drive means adapted for coupling to a motor and operably interacting with each said drive portions to impart thereto an eccentric movement in a plane of each respective said drive portion about a common axis, the eccentric movement imparted to the respective drive portions being equal and angularly out of phase; and means to restrain movement of the respective drive portions at a specific location spaced from said common axis to substantially linear movement in a direction radial to the common axis and to angular movement about a respective pivot axis parallel to said common axis, whereby in response to activation of the drive means, the cutting edge of each cutting member prescribes simultaneously in a plane of the cutting member simultaneous oscillatory movements in the direction of the cutting edge and in a direction substantially at right angles to the cutting edge, the corresponding movements of the respective cutting members being out of phase, and the teeth of each cutting edge being adapted to each cut when moving individually in one direction in the direction of extent of the cutting edge.