JPS6015340B2 - Cosmetic cutlery and its manufacturing method - Google Patents

Description

[Detailed Description of the Invention] Knives, kitchen knives, and other cutlery with a blade pattern on their blades have a Japanese sword-like aesthetic that can be seen from ancient pottery, increasing their commercial value, and are valued as luxury items.

The manufacturing methods for these knives include, for example, a method called honyaki knife, in which a blade pattern is expressed on the blade by heat treatment with a difference in hardness, or a method in which a composite material is hot forged to join the blade steel material and the base material. It is generally manufactured using methods such as creating a hamon pattern on the border.

These methods are unique for each item, and are based on traditional handmade work, so they are currently unavoidably expensive. The present invention not only has a blade pattern 4 on the blade part 3, but also has an embossed pattern 2 on the abdomen 1 of the blade, which further improves the practical effect and aesthetic appearance of the decorative knife (see Figure 1).
It is related to the manufacturing method, and in that manufacturing method, each item is not a handmade one-of-a-kind pattern as in the case of cascades, but
The present invention proposes a method that can easily produce large quantities of IQ-sho cutlery having a desired uniform pattern in a planned manner.

In other words, it is a composite three-layer steel 7 or a composite two-layer steel finished in a thin thickness by cladding a reinforcing base material 6 with excellent toughness or corrosion resistance on both or one side of a high-hardness blade 5. 11, the embossed pattern is applied to the surface of the base material using embossed pattern rolls 10 and 10' which are processed with striped, lattice-like, or polka dot-like patterns, and the internal joint surface 14 of the base material and the blade steel material is also After being deformed into an uneven shape according to the embossed pattern by the embossing process, the combined cutlery materials 7', 11' are made into cutlery through the three common manufacturing processes (die cutting → heat treatment → blade polishing → finishing). Finish it. As mentioned above, the internal joint surface 14 between the blade steel and the base material is deformed into an uneven shape due to the effect of embossing (see Figures 5 and 10). It appears in the form of hamon pattern lines that follow the pattern. In addition, in the case of embossed pattern roll rolling, in the case of composite 3-layer steel (for double-edged use), use embossed pattern roll 10 for both the upper and lower rolls, and in the case of composite 2-layered steel (for single-edged use), use the embossed pattern roll 10 on the mother side. It goes without saying that the embossed pattern roll 10' is used and the flat roll 13 is used on the blade steel side.

In addition, in this embossed pattern, there are striped trees in a lattice pattern or polka dot pattern, an example of which is shown in Figure 20, but this pattern does not adhere to the pattern shown in the illustration.
Of course, the pitch, depth, angle, size, shape, etc. of the grooves can be varied to obtain the desired pattern.

The knife obtained by the above-mentioned method has an embossed pattern 2 on the abdomen 1' of the blade, and a decorative knife (Fig. 1) in which a blade pattern 4 similar to the embossed pattern is exposed on the blade part 3. You can get it.

This decorative knife has an embossed pattern on the abdomen of the blade, which has the practical effect of preventing the workpiece from adhering to the blade, and also has an aesthetic effect not seen in conventional knives. The similar hamon pattern appears on the knife, making it a decorative knife with even greater commercial value.

In addition, in the present method for manufacturing decorative cutlery, the material for the cutlery can be manufactured by "roll rolling" without the need for a uniform forging process for each product or a process to bring about heat treatment hardness as in the conventional method. In order to obtain a material for cutlery with an embossed pattern on the surface of the mother village and a deformed internal joint surface into an uneven shape, the manufacturing process can be shortened to medium length, and the pattern is not uniform for each item. It is possible to obtain a large amount of products with a uniform pattern.Furthermore, by preparing embossed rolls with various embossed patterns such as stripes, grids, or polka dots,
It is possible to easily obtain a material for cutlery with a desired pattern at the right time, and the pattern can also be changed at will by changing the cutting direction of the material for cutlery (see Figures 12 to 16). You can easily obtain decorative cutlery with the desired pattern.

In addition, by using the laminated material 8 made of multiple layers of hard material and soft material as the base material of the composite knife material, the blade pattern on the blade part is exposed in multiple layers due to the difference in heat treatment hardness ( (See Fig. 19) A decorative cutlery with even more improved appearance can be obtained.

As described above, the decorative cutlery of the present invention has improved aesthetic and practical effects due to the embossed pattern on the abdomen of the blade and the blade pattern similar to the embossed pattern exposed on the blade, and the manufacturing method thereof is also different from the conventional one. Not only does it reduce the number of man-hours required compared to the manufacturing method for hamon cutlery, but it also makes it possible to easily produce decorative cutlery with desired patterns in large quantities, thereby contributing to industry. This clearly states that the

Example 0 A medium-rolled composite three-layer steel plate made of high carbon steel (JIS; equivalent to SK) as the blade steel material 5 and stainless steel (JIS; SUS410) as the reinforcing base material 6 on both sides, 3.5 x 26
The 0x1500 side was cold rolled to tl. 8×260
×290 & Misaki finish rolling, 1.2~2.4 fence in the groove,
Depth 1.0 side, pitch 4.0 A striped pattern empos roll (direct diameter; 35 starboard) with grooves on the fence has a depth of about 1.5 sides, depth of about 0.2 sides, pitch 4. Obtained Himisaki's striped pattern composite cutlery material.

This material for cutlery was cut into a cutter shape at an angle of 45 degrees perpendicular to the rolling direction to make a decorative cutlery, and a decorative cutlery was obtained that brought about new aesthetic effects and improved practical effects that had not been seen before. It was done.

(For reference, see photo)

[Brief explanation of the drawing]

FIG. 1: A perspective view of an example of a decorative cutlery obtained by the present invention. Figure 2, Figure 7...Composite 3 finished to full size thickness
A perspective view of layered steel and composite two-layered steel. Figure 3, Figure 8...
- A perspective view of a composite three-layer steel and a composite two-layer steel in which the base material is made of a laminated material 8 and has a full-length keyed finish. Figures 4 and 9 are side views of three-layered composite steel 7 and two-layered composite steel 11 finished to full size thickness during rolling with embossed pattern rolls IQ, 10'. FIG. 5, FIG. 10... Views taken along arrows A and B in FIGS. 4 and 9. Figure 6, Figure 11...
. . . Perspective views of three-layer steel and two-layer steel, which are materials for embossed cutlery, rolled by an embossed pattern roll. FIG. 12 is a diagram showing an example of cutting out a striped pattern cutlery material into the shape of a cutlery. Figures 13 to 16...
...The embossed pattern on the abdomen of the sword and the hamon pattern on the blade when die-cut using methods A to 2 in Figure 12. Figures 17 and 18
Figure: Another example of a striped pattern. Figure 19・
... An example diagram where the mother village is made of laminated materials. Figure 20...
...Example of striped, lattice, and polka dot embossing patterns. 1...Blade abdomen, 2...Embossed pattern, 3...Blade portion, 4...Hamon pattern, 5...Blade steel material , 6... Reinforcement mother village, 7
...... Composite three-layer steel, 7'... Cutler material with embossed pattern (three layers), 8... Laminated base material, 9...
・Composite three-layer steel with laminated base material, 10.10'...
Embossed pattern roll, 11...Composite double layer steel, 1
1'... Somura for cutlery with embossed pattern (2 layers)
, 12... Composite two-layer steel having a laminated base material, 13...
...Flat roll, 14...Internal mating surface of blade steel material and base material. A to 2: An example of a case where the direction of cutting the material for a knife into the shape of a knife is perpendicular to the stripe pattern, at a certain angle, or almost parallel to the stripe pattern. Wood...An example of a striped pattern...
・An example of a lattice pattern, an example of a polka dot pattern. Gosu 1 figure ★ 2 figure Fang Ko outside figure 4 figure outside figure 5 figure Sai 6 figure 〆7 figure spear 8 figure O 4 figure outside figure 10 figure O 1 figure O 2 figure Fang IS monument O 10 Mouse Ga IS style O 5 outside figure - "Dark Chi'0 figure ge 11 figure spear 20 figure

Claims (1)

[Scope of Claims] 1. A composite three-layer steel having an embossed pattern 2 in the form of stripes, lattice, or polka dots on the abdomen 1 of the blade, and a blade pattern 4 corresponding to the embossed pattern on the blade portion 3; Or a decorative cutlery made of composite two-layer steel cutlery materials 7 and 11. 2 A known composite three-layer steel 7 or composite two-layer steel 1 finished to an appropriate thickness by cladding a reinforcing base material 6 with excellent toughness or corrosion resistance on both sides or one side of a high-hardness knife steel 5.
By applying the embossed pattern on the surface of the base material using embossed pattern rolls 10 and 10' having a striped, lattice, or polka dot pattern, the internal bonding surface 14 of the base material and the blade steel material is A method for producing a decorative cutlery by using a known manufacturing method to make a composite cutlery material 7, 11 deformed into an uneven shape similar to an embossed pattern. 3. A decorative cutlery as set forth in claim 1, wherein the base material of the composite cutler material is a laminated material 8 made of multiple layers of hard and soft materials. 4. The method for manufacturing a cutter according to claim 2, wherein the base material of the composite cutter material is a laminated material 8 made of a multilayered hard material and a soft material.