JP2006305305A - Blade exchangeable cutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a blade exchangeable cutter to solving the problems of conventional snap-off blade cutters that a blade has an elongated form for feeding causing danger on occasion by a using manner and labor to fold and cut a blade is required sometimes. <P>SOLUTION: In this blade exchangeable cutter, all sides of an exchangeable blade have a shape with the part with an edge and the part without edge. Thus, an edge of one exchangeable blade can be exchanged with an edge on another side. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a replaceable blade type knife that facilitates replacement of a replaceable blade and ensures safety.

  A cutter knife is a feed-out type knife that is used when cutting paper or the like using a cutting edge and cutting it into an arbitrary shape.

  In addition, there are various types such as general small blades, large blades, art blades, and other plastic cutting devices.

  Since the replacement blade of the cutter knife is a pay-out type, the replacement blade is elongated, which can be dangerous depending on how it is used, and it takes time to fold and cut a single replacement blade several times. .

  The present invention is intended to solve such a problem of the conventional configuration, and a replaceable blade type knife that makes the shape of the replaceable blade less dangerous and does not require the trouble of cutting the replaceable blade. It is intended to be realized.

  And in order to achieve the above-mentioned object, the present invention can not be used as a cutter blade replacement blade as a shape having a blade on each side of a single replacement blade, rather than an elongated shape that is folded and cut. Then, just replace the unused blade of the same replacement blade, so that it can be used as a replacement blade, and all the blades of one replacement blade can be used as replacement blades. When all the blades have been used, the blade is replaced with a new blade.

  Further, the replacement blade can be provided for various uses by preparing replacement blades having a triangular shape, a quadrangular shape, a pentagonal shape, a hexagonal shape, and other polygonal shapes.

  As described above, in the replaceable knife of the present invention, since the replaceable blade does not have an elongated shape, the risk of handling is reduced.

  Moreover, since it can be used by replacing the blades of other sides with a single replacement blade without breaking and cutting the replacement blade, a replacement blade with less labor can be provided.

BEST MODE FOR CARRYING OUT THE INVENTION

  Embodiments of the present invention will be described below with reference to FIGS.

A replaceable knife using the square replaceable blade 5 will be described. In the figure, the replaceable blade holder 1 is provided with a replaceable blade storage chamber 3 in which a square shaped replaceable blade 5 is placed. At that time, when the protrusion 4 is aligned with the alignment hole 9 and stored in the replacement blade storage chamber 3, the replacement blade holder 1 is assembled as shown in FIG. When the replaceable blade holder 1 in this state is inserted inside the replaceable blade cover 2 of FIG. 3, the square shape replaceable blade type knife of FIG. 1 is assembled. At that time, the meshing teeth 6 and the crimp springs 7 are joined and assembled so as to mesh with each other.
In addition, a pressing 8 spring for pressing the rectangular replacement blade 5 against the replacement blade storage chamber 3 is provided inside the replacement blade cover 2.
In addition to the square-shaped replacement blade 5, the replacement blade can provide a triangular replacement blade 10, a pentagonal replacement blade 11, and a hexagonal replacement blade 12 for various purposes. Moreover, the replacement blade storage chamber which accommodated those replacement blades is FIG. 6, FIG. 7, FIG. In addition, we can also provide polygonal blades

The role of the above configuration will be described below.
In order to cut the material and process it into an arbitrary shape with the replaceable blade type knife shown in FIG. 1, to adjust the condition of the cutting edge of the replaceable blade knife, hold the replaceable blade holder 1 and slide the replaceable blade cover 2. Then, the slide mechanism in which the meshing teeth 6 and the crimp spring 7 are joined can be slid and stopped, and has a function of fixing. When the work of the replaceable knife is completed, the replaceable blade cover 2 is slid and fixed at a position where the entire replaceable blade is closed. Also, when performing replacement blades, when the replacement blade cover 2 is removed from the replacement blade holder 1, the square-shaped replacement blade 5 appears, so the square-shaped replacement blade 5 is removed and replaced with a new blade on a different side or a new replacement blade. Just do it.

  As described above, according to the embodiment, since there is no cutting operation of the replacement blade, there is obtained a replacement blade type knife that is less dangerous and hassle-free. In addition, the blades on each side can be easily replaced by simply replacing the blades on the other sides with the blades on the other sides and placing them in the replacement blade storage chamber. The surface of the part where the blade is not provided on the side forming the replacement blade stored in the replacement blade storage chamber comes into surface contact with the side surface of the replacement blade storage chamber so that the replacement blade can be stored and stored well. Can reduce the damage. The same applies to triangle type change blades, square type change blades, pentagonal type change blades, hexagonal type change blades, and other polygonal type change blades.

Assembled external view of square type replaceable knife External view of the square shaped blade holder Rectangle replacement blade cover external view External view of square shaped blade storage room Appearance drawing of square shaped blade External view of the storage room with the triangular blade Exterior view of the storage room with the pentagonal blade External view of the storage room with the hexagonal shaped blade

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Replacement blade holder 2 Replacement blade cover 3 Replacement blade storage chamber 4 Projection part 5 Square type replacement blade 6 Engagement tooth 7 Crimping spring 8 Pressing spring 9 Replacement blade alignment hole 10 Triangular replacement blade 11 Pentagonal replacement blade 12 Hexagon type Spare blade

Claims (5)

  Triangular replacement blades, quadrilateral replacement blades, pentagonal replacement blades and hexagonal replacement blades can be used as replacement blades for replacement blade knives, and all sides forming the replacement blade have a blade portion and a blade. A replaceable blade type knife characterized in that one side is formed by a portion not provided with a blade.   2. The replacement according to claim 1, wherein a surface of a portion where no blade is provided on a side forming the replacement blade stored in the replacement blade storage chamber is in surface contact with a side surface of the replacement blade storage chamber. Blade type knife.   When the replacement blade is stored in the replacement blade storage chamber, a part of the replacement blade is exposed outside the replacement blade storage chamber through an opening provided in the replacement blade storage chamber. The replaceable blade type knife according to claim 1 and claim 2.   The replaceable blade type knife according to claim 1 or 2, wherein a protrusion provided on the bottom surface of the replaceable blade storage chamber can be fitted into a replaceable blade alignment hole provided in the replaceable blade. .   When the replacement blade is stored in the replacement blade storage chamber and the replacement blade holder is inserted inside the replacement blade cover, the replacement blade is moved below the replacement blade storage chamber by a pressing spring attached to the replacement blade cover. The replaceable blade type knife according to claim 1 or 2, wherein the knife is pressed to the center.

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