Electric reciprocating tool

摘要

A reciprocal-movement power tool is applied to a cutting device. A movable blade 13 is reciprocally movably provided on a main body. A receiving plate 20 that supports an angle iron 30 to be cut is supported on the main body at a position in front of the movable blade 13. The movable blade is fixed on a front tip of a rod-shaped shuttle screw 12. The shuttle screw 12 moves back and forth in the axial direction within a tubular screw shaft 11. The screw shaft 11 is carved with a female screw portion 11d and is rotated through a joint spindle 9 that is deceleratingly rotated upon rotation of the motor 5 through a deceleration means 8. The shuttle screw 12 has a male screw portion 12b that is threadingly engageable with the female screw portion 11d. Rotation of the screw shaft 11 causes axial movement of the shuttle screw 12 because of the threading engagement between the female screw portion 11d and the male screw portion 12b. Thus, the movable blade 13 is moved back and forth with respect to the receiving plate 20 for cutting the angle iron 30. A reciprocal-movement power tool with a simple configuration and providing large forward movement force and retracting force can be provided inexpensively.