JPH1024176A - Delivery knife - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a delivery knife which enables cutting varying a so-called cutting depth by allowing the cutting of the surface of a sheet material but leaving the rear thereof as intact. SOLUTION: A blade of a delivery knife is delivered by a delivery value thereof along the end of a sheet material as illustrated and the corner 2 of a sheath is put on the surface of the sheet material together with the surface 3 of the edge thereof. The delivery value is defined to fix the blade. When a cutting is made at an angle θ with the corner 2 of the sheath as illustrated, the surface of the sheet material can be cut while leaving the rear thereof as intact. The depth of the so called cutting can be changed by varying the angle θ.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cutting the surface of a sheet material by setting the feeding amount of a blade of a feeding knife to the thickness of the sheet material and cutting the sheet at an appropriate angle with the corner of a sheath as a fulcrum. The present invention relates to a dispensing knife that changes the so-called depth of cut so as not to cut the back surface.

[0002]

2. Description of the Related Art Conventionally, in order to cut the front side of a sheet material and not to cut the back side, a blade is slightly cut out from a sheath, or a blade is slightly cut from a plate in contact with the sheet material like a plane. Was cut out.

[0003]

However, the conventional method has the following problems. Regardless of whether the blade is slightly cut out of the sheath or cut out of the plate in contact with the sheet material, it is difficult to determine the amount of blade extension. And trial cutting was necessary.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to quickly determine the amount of blade extension and the cutting depth when making a so-called notch by cutting the front surface of the sheet material and not cutting the back surface. .

[0005]

According to the present invention, in order to achieve the above object, the feeding knife has the following structure, which will be described with reference to FIG. Line of the cutting edge 4 and corner 2 of the sheath
Are crossed at right angles on a plane. And the surface 3 of the ostium is slightly widened. The blade is a screw 5
Thus, the feeding amount can be freely determined and fixed. This is the structure described above.

[0006]

According to the present invention, as shown in FIGS. 2 and 3, the blade is fed out along with the edge of the sheet material, and together with the surface 3 of the sheath opening, the corner 2 of the sheath is used.
To the surface of the sheet material. Then, the feeding amount of the blade is set to the thickness of the sheet material and fixed with the screw 5. Thereafter, as shown in FIG. 4, when the sheet is cut at an angle θ between the surface of the sheet material and the sheath 1 with the corner 2 of the sheath as a fulcrum, a cut can be made so as not to cut the surface of the sheet material and cut the back surface.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a perspective view. Next, each part and role in the perspective view will be described. Reference numeral 1 denotes a sheath for accommodating the blade and fixing the blade. Numeral 2 is a sheath angle that determines the feeding amount of the blade and serves as a fulcrum of the cutting angle θ and determines the cutting depth. Reference numeral 3 designates a surface of the sheath opening which is brought into contact with the surface of the sheet material when the feeding amount of the blade is determined. Reference numeral 4 denotes a cutting edge for cutting the sheet material. 5 is a screw for fixing the blade and the sheath.

With the feeding knife having the above-described configuration, the sheet material is cut in such a manner that the front surface is cut and the back surface is not cut as follows. The blade of the dispensing knife is extended, and as shown in FIGS. 2 and 3, the blade is attached to the end of the sheet material, and the corner 2 of the sheath is applied to the surface of the sheet material. This allows
Since the feeding amount of the blade is equal to the thickness of the sheet material, the blade is fixed to the sheath by the screw 5. Then, as shown in FIG. 4, an angle θ between the sheath and the surface of the sheet material with the corner 2 of the sheath as a fulcrum.
Cut at less than 90 degrees. For example, if the angle θ is 45 degrees, the sheet can be cut at a depth of 70% of the thickness of the sheet material. At 30 degrees, it can be cut at a depth of 50%.

[0009]

As described above, according to the present invention, it is easy to cut the front surface of the sheet material so as not to cut the rear surface. A so-called cut can be made at an appropriate depth.

[Brief description of the drawings]

FIG. 1 is a perspective view

FIG. 2 is a front view when a feeding amount is determined.

FIG. 3 is a left side view when a feeding amount is determined.

FIG. 4 is a left side view at the time of cutting.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sheath 2 Sheath angle 3 Sheath mouth surface 4 Cutting edge 5 Fixing screw θ Angle

Claims (1)

[Claims] 1. A dispensing knife wherein a line of the cutting edge 4 and an extension of a corner 2 of the sheath intersect each other at right angles on a plane.