| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that a conventional hand jigsaw function for adjusting a cutting plane angle requires that a base is fixed at an arbitrarily set cutting angle when in use and is a function for cutting through a constant angle from the cutting start to the cutting end, and therefore does not allow cutting by freely varying an angle while continuing the cutting, and the problem that a hinge is disposed at a slightly high position from a point of contact with a base bottom surface, that is, a cutting object member, and consequently, when varying an angle using this hinge, a deflection angle at a contact point of sawteeth and the cutting object member, namely, a cutting point, increases further in size so that a cutting line is dislocated and undefined, and thus varying an angle while aiming at a reliably cut line is impossible, although, for example, a movable hinge is used.SOLUTION: Provided is a convex shaped base which uses a convex shape at a base bottom surface of a hand jigsaw and is designed so that variation control of a cutting angle can be performed during cutting, by using a cutting point at which sawteeth cut into a material as an angle fulcrum.SELECTED DRAWING: Figure 1 |
