KR200428933Y1 - A cutterof having a safeguard for edge of a knife - Google Patents

Abstract

The present invention is a sliding part having an uneven portion on one side and the main body formed along the longitudinal direction; An operating part installed to move forward and backward along the sliding part in the main body; A blade embedded in the main body in a state detachably coupled to the front surface of the operation unit; The cover is detachably inserted into the rear of the main body; a front side of the main body is formed with a moving hole in the longitudinal direction, between the blade and the main body is built in a support surrounding the top of the blade, one side of the support In the present invention relates to a cutter knife provided with a blade protector provided with a moving projection penetrating the moving hole and exposed to the outside,

As the cutter knife protrudes the tip of the blade from the main body for a long time, as the support part supports the upper end of the blade, the blade is bent during use, which prevents the blade from falling out of the cutting part and prevents breakage due to excessive force. It can improve durability and prevent the occurrence of safety accidents.

Body, sliding part, moving hole, operating part, blade, cover, support part, moving protrusion

Description

A cutterof having a safeguard for edge of a knife}

1 is a perspective view showing a conventional cutter knife

2 is a perspective view showing a cutter knife of the present invention

3 is a partially enlarged view for explaining a state of use of FIG.

4 is a cross-sectional view of FIG.

<Detailed description of the major symbols in the drawings>

10: main body

  11: sliding part 12: moving hole

20: operating part

30: blade

40: cover

50: support part

  51: moving projection

The present invention relates to a cutter knife provided with a blade protector, and more particularly, a blade protector provided to prevent the blade from being bent or broken by excessive force in use by protruding the tip of the blade long from the main body. It is about a cutter knife.

Generally, cutter knife is an office equipment used to cut papers such as scissors. Scissors are mainly used to cut curves or circles, not straight lines, whereas cutter knives are used to cut many papers in a straight line. It is different.

Knives used for this purpose have conventionally used cross-section knives with one side of the blade formed on the metal body in the longitudinal direction and the other side with the handle portion, but these cross-section knives are used in the hand to perform the cutting operation. There is a concern that safety accidents may occur when the operation is very inconvenient to hold, and when the tip of the blade becomes dull, the blade is not replaced, and thus it is difficult to use a new product.

Therefore, in recent years, the blade is coupled to the operating portion reciprocating along the guide groove formed on the front of the main body having a predetermined length, the blade is raised to the front end of the main body by the forward and backward of the operating portion, and the cutting operation is possible. The use of a cutter knife that can cut only the blade of the blunt tip to make a sharp blade again is common.

1 is a perspective view showing a conventional cutter knife.

As shown in the related art, the conventional cutter knife includes: a main body 10 having a sliding portion 11 having an uneven portion on one side thereof along the longitudinal direction thereof; An operation part 20 installed to move forward and backward along the sliding part 11 in the main body 10; A blade 30 embedded in the main body 10 in a detachable state coupled to the front surface of the operation unit 20; The cover 40 is detachably inserted into the rear of the main body 10;

These cutter knives are configured to cut parts of the blade itself so that the blunt blades can be removed and new blades can be used repeatedly, and these blades can be easily replaced, thereby reducing the purchase cost and only a part of the blade body. The cutting work is done by haunting to the tip of the car, which has the advantage of reducing safety accidents.

On the other hand, the use of such a cutter knife occurs when cutting the end of the blade protruded from the main body in a long state, in this case, the blade protruding from the main body is bent in the process of cutting because there is no supporting portion cutting section Can escape, there was a problem that the blade is broken by such bending or excessive force. Such broken blades can cause serious safety accidents when hit by the user's hand or face, so it is desirable to prevent them in advance.

Therefore, the present invention is configured to achieve the above object, to provide a cutter knife with a blade protector which can prevent the blade from being bent or broken by excessive force in use by protruding the tip of the blade long from the body. For the purpose of

The present invention to achieve the above object,

A main body having a sliding portion having an uneven portion on one surface thereof in the longitudinal direction thereof; An operating part installed to move forward and backward along the sliding part in the main body; A blade embedded in the main body in a state detachably coupled to the front surface of the operation unit; In the cutter knife consisting of; a cover inserted detachably in the rear of the main body,

A moving hole is formed along the longitudinal direction on the front side of the main body,

Between the blade and the main body is built in a support surrounding the top of the blade is installed, one side of the support is provided with a moving projection penetrates the moving hole and exposed to the outside, when the moving projection is slid along the moving hole the front support body It is achieved by providing a cutter knife with a blade guard, characterized in that it protrudes from.

Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited to the embodiments shown in the drawings.

Figure 2 is a perspective view showing a cutter knife of the present invention, Figure 3 is a partially enlarged view for explaining the use state of Figure 2, Figure 4 is a cross-sectional view of FIG.

As shown therein, the cutter knife of the present invention includes a main body 10 having a sliding portion 11 having an uneven portion on one side thereof along the longitudinal direction thereof; An operation part 20 installed to move forward and backward along the sliding part 11 in the main body 10; A blade 30 embedded in the main body 10 in a detachable state coupled to the front surface of the operation unit 20; A lid 40 detachably inserted into the rear of the main body 10; The upper edge of the blade is wrapped between the blade 30 and the main body 10 is composed of a built-in support (50).

In such a configuration, since the main body 10 and the operation unit 20, the blade 30, the cover 40 is operated in the same manner as a conventional cutter knife, a sufficient explanation can be made therefrom, and a detailed description thereof will be omitted. Let's do it. However, it is revealed that the main body 10 is different from the main body of the conventional cutter knife in that a predetermined moving hole 12 is formed along the longitudinal direction.

Therefore, when the cutter knife of the present invention is described with respect to the support 50 which is a new component in addition to the above-described configuration, the support 50 is the blade 30 in a state embedded between the blade 30 and the main body 10. It is formed to surround the upper end of a predetermined length, one side is provided with a moving projection 51 penetrating through the moving hole 12 of the main body 10 and exposed to the outside.

Such a support part 50 protrudes outwards or inwards through the front surface of the main body 10 when the moving protrusion 51 exposed to the outside of the main body 10 slides forward and backward along the moving hole 12. It has a working relationship to be inserted.

The cutter knife provided with the support part 50 having the above operating relationship has a state in which the support part 50 is inserted into the main body 10 when the blade 30 is shortly protruded and used on the front surface of the main body 10. In the case where the tip of the blade 30 is protruded from the main body 10 and used, the moving protrusion 51 is advanced along the moving hole 12 so that the support part 50 protrudes from the main body 10. Also used in a state to wrap the top of the blade 30 protruding from the body 10.

In this way, the tip of the blade is protruded from the main body to support the upper end of the blade, so that the blade is bent during use, which prevents the blade from falling out of the cutting area. Safety accidents can be prevented.

As described above, the cutter knife provided with the blade protection device of the present invention is used to protrude the tip of the blade from the main body to support the upper end of the blade to prevent the blade from being bent out of the cutting part during use. It prevents excessive force from breaking and improves durability and prevents accidents from occurring.

Claims (1)

A main body having a sliding portion having an uneven portion on one surface thereof in the longitudinal direction thereof; An operating part installed to move forward and backward along the sliding part in the main body; A blade embedded in the main body in a state detachably coupled to the front surface of the operation unit; In the cutter knife consisting of; a cover inserted detachably in the rear of the main body, A moving hole is formed along the longitudinal direction on the front side of the main body, Between the blade and the main body is built in a support surrounding the top of the blade is installed, one side of the support is provided with a moving projection penetrates the moving hole and exposed to the outside, when the moving projection is slid along the moving hole the front support body Cutter knife provided with a blade guard, characterized in that protrudes from.

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