JPH1142374A - Cutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the cutting of a small circle or a curved line, etc., by putting through a cutter blade where a needle-shaped sharp blade is formed in one end inside the sleave of a cylindrical holder one end, abutting the other conical end of the cutter blade on a bearing and also supporting the trunk part of the cutter blade by means of a repulsion of magnetic bodies. SOLUTION: A metallic cap 3 with a sleave 2 is screwed in one end of the cylindrical holder 1, the cutter blade 4 where the needle-shaped sharp blade 5 is formed in one end is put through inside the sleave 2, the cutter blade 4 and the other end are conically shaped and its steeple part 6 is abutted on the bearing 7 inside the holder 1. Besides, the planar magnetic body 9 is fitted to the cutter blade trunk part 8, the circular magnetic body 10 where the cutter plate 14 is put through in its center part is fitted inside the metallic cap 3 on the contrary and the facing surfaces of the magnetic bodies 9 and 10 are magnetically repulsed mutually as the same magnetic pole so as to float and support the cutter blade 4 by the repulsion force. Thus, the weight or resistance of the cutter blade 4 is eliminated so as to be almost zero, its rotation is made to be remarkably light and the cutting of the small circle, etc., is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing implement type cutter for cutting a paper or an adhesive sheet into a curved shape at the time of producing a design or the like.

[0002]

2. Description of the Related Art Conventional cutters have a blade fixed to a holder or a blade rotatable in the holder. However, even when trying to cut a small circle or curve, the blade cuts into the paper and forms a zigzag. I couldn't cut it off smoothly.

[0003]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a cutter capable of easily cutting small circles and curves easily and smoothly.

[0004]

In order to achieve the above object, the present invention provides a sleeve with a sleeve at one end of a cylindrical holder, and a cutter blade inserted into the sleeve is needle-shaped and one end has an acute angled blade. The other end is in a conical shape and abuts against the bearing in the holder.A magnetic body is attached to the stem of the cutter blade, and another magnetic body is set in the base. And attached as a cutter.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A base (3) with a sleeve (2) is screwed into one end of a cylindrical holder (1), and a cutter blade (4) inserted through the sleeve has a needle-like shape and has one end. A sharp edge (5) is formed by both blades, the other end is conical, and the point (6) abuts on a bearing (7) in the holder, and the cutter blade stem (8) has a dish-shaped magnetic material ( 9), and a circular magnetic body (10) through which a cutter blade is inserted through the center of the base is attached to the base with the surface facing the plate-like magnetic body in the state of repulsion of the same magnetic pole, and the cutter is attached. did.

Further, as an example, the bearing may be provided with a threaded portion (11) with a holder, and when the adjustment knob (12) provided at the other end of the holder is rotated, the bearing may move forward and backward. The annular magnetic body may be provided at or near the bearing in the holder so that the surface facing the dish-shaped magnetic body attached to the cutter blade is in a suction state.

[0007]

The present invention is a writing instrument type cutter mainly for cutting paper or an adhesive sheet in a curved shape during the production of a design or illustration, and can cut a small circle or curve lightly using a freehand or template. The main point was to see if it could be done. The cutter blade has only the inner peripheral surface of the sleeve and the pointed head in contact with the bearing, and the annular magnetic body in the base and the dish-shaped magnetic body attached to the cutter blade face each other with the same polarity. The plate-like magnetic material pushes up the cutter blade and comes into contact with the bearing at the point of the tip, so that the weight and resistance of the cutter blade are equal and the rotation becomes very light. In addition, since the thickness of the paper or the pressure-sensitive adhesive sheet differs, the degree of extension of the cutter blade from the sleeve is adjusted by rotating the adjustment knob. If the blade is extended too much or the writing pressure is too strong, it is difficult to cut the curve because it penetrates deeply into the backing of the adhesive sheet. You can cut lightly freely. Note that a hard ferrite magnet may be used as the magnetic material, but the blade can be sufficiently repelled and floated even if a thin rubber plate-like magnet is punched out into a dish or ring shape. Use a rubber plate magnet that is magnetized one pole at a time on both sides.If the magnetic poles are alternately magnetized on one side, use a magnet with the same pole larger than the diameter of a dish-shaped or ring-shaped magnet. It may be used. Further, the magnet is not limited to a dish-like or annular shape, and may be of any shape as long as it can rebound and float and enter the gap between the base and the holder and do not come into contact with the surroundings when the cutter blade rotates. As another embodiment, as shown in FIG. 2, when magnetic materials are used so as to be in an attracted state, the cutter blade keeps being pulled in the bearing direction, and the weight of the cutter blade is not added to the paper surface, so that the cutting proceeds gently. Can do things.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the cutter of the present invention.

FIG. 2 is a perspective view showing another embodiment of the cutter of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Holder 2 Sleeve 3 Base 4 Cutter blade 5 Blade 6 Pointed head 7 Bearing 8 Cutter blade trunk 9 Magnetic body 10 Magnetic body 11 Screw section 12 Adjustment knob

Claims (2)

[Claims] An end of a cylindrical holder is screwed with a base with a sleeve. A cutter blade penetrating through the sleeve is needle-shaped, has a sharp edge at one end, and has a conical end at the other end, and has a bearing in the holder. A magnetic body penetrates and attaches to the main part of the cutter blade, and a magnetic body is attached to the inside of the base with the magnetic body attached to the cutter blade in a state of repulsion of the same magnetic pole. Features a cutter. 2. A magnetic body in a base is provided at or near a bearing in a holder, and a surface facing a magnetic body attached to a cutter blade is in an attracted state. The cutter according to 1.