JPS6132100B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a spoon in which a relief is formed on the spoon portion.

Regarding spoons used as Western tableware, spoons decorated with various designs to enhance their hobby effect have become common and are now in practical use.Recently, spoons with materials other than metal added to them,
For example, those with cloisonné applied to the end of the handle are manufactured. However, most of the various designs on conventional spoons have been made on the handle, ranging from designs that have a design effect only to the outline of the spoon to carvings with various patterns on the entire handle. arrive at what was done,
In other words, the decorative effect is enhanced in parts other than the spoon part. This is because the handle is the easiest part to process from the perspective of the entire spoon, and although the spoon has the widest area, the surface is a concave curved surface, so it is difficult to add a pattern to the surface. Since the area is wide (generally it is drawn and drawn by press forming after rolling), it is difficult to form a pattern on this area, and it is not suitable for mass production, so this practice has not been carried out.

The present invention has the widest area as a spoon,
By applying a relief on the spoon part, which can increase its decorativeness, and with the engraved pattern formed on the handle part, it is possible to mass produce an elegant spoon with a synergistic design effect, and to provide it at a low price. It is aimed at law.

That is, in the present invention, as in the prior art, the handle forming part and the spoon forming part are punched out of a plate material, and the outline of the handle is first punched and formed, and then the design is formed on the handle. The desired design is formed on both the upper and lower surfaces of the handle by pressing the handle with both upper and lower molds equipped with molds. An embossed pattern is formed by pressing a desired pattern on the upper surface of the spoon-forming part with a press mold which has been developed and engraved in advance, and then punching out the spoon-forming part into a predetermined developed shape.
After that, the spoon forming part is embossed and the design side is pressed by an upper mold whose surface is covered with an elastic material and drawn into a predetermined shape by a concave lower mold, thereby obtaining a spoon with a relief formed on the spoon part. .

The present invention will be described in detail below with reference to the drawings. First, a metal plate (stainless steel, nickel silver, etc.) having a standard thickness for the handle of a spoon to be obtained is first placed as shown in FIG. Square-shaped spoon forming part 2
and a narrow handle forming part 3 are punched out from the raw material 1, and then the handle forming part 3 is punched and formed using a punching die (not shown) having a contour corresponding to the design of the handle to be obtained ( After that, the handle is pressed from above and below with a press machine using both upper and lower molds for engraving according to the desired design of the handle, thereby forming the handle 13 that can reveal the desired design. Depending on the design of the edge of the handle, if the front side is formed with a medium height and the back side is formed with a concave in the central longitudinal direction, it is possible to form a handle that has a large apparent thickness and is strong, that is, has high bending strength. . An example of this is shown in FIGS. 3 to 5.

Next, the spoon forming part 2 is first passed between a pair of small rolling rollers 5 and 5', both or one of which was formed with a circumferential surface with an appropriate inclination angle in the rolling process, from the connecting base with the handle to the handle. The material is rolled into a flat shape so as to become thinner toward the tip of the axial extension (see FIG. 6) to form a base material for the spoon forming portion 2. Next, in the relief forming press process, a mold engraved with the desired design is pressed onto the center of the surface of the part rolled in the previous rolling process (it may be shifted to any position as needed) to form a part corresponding to the engraving. Float the desired pattern 4 as illustrated in FIG.
You will get one with embossed. The embossed pattern on the intermediate product obtained in this manner has been completely stretched in advance, taking into consideration the drawing margin, so that it will form a predetermined pattern during spoon finishing. This intermediate product depends on the type of spoon, for example, when trying to obtain a spoon, it is first punched and formed using a punching press to form a so-called egg-shaped developed shape 2' (No. 8).
After that, in the spoon molding process, as shown in FIG. 9, an upper mold 7 is formed of a hard part that becomes a required convex curved surface, and a rubber elastic layer 8 is provided on the surface of the hard part, and The spoon portion 12 is formed by pressing the spoon forming portion punched in the previous step with a drawing mold consisting of a lower die 7′ which has the required concave curved surface and has been finished with a precise surface. be. By drawing and forming in this way, a forming force is applied to the previously stamped relief portion 4 via the elastic layer 8 of the upper mold 7, so that the elastic layer 8 corresponds to the relief portion 4. It can be deformed and molded without causing any scratches due to drawing, and the resulting spoon portion 12 shrinks at the required ratio to form a relief with a normal shape. In the next step, the thing obtained in this way is connected to the handle part 13 and the spoon part 12 as a connecting base 1.
A spoon 10 which is bent at a required angle at 3' and has a relief 4 on the spoon part 12 as shown in FIG.
is obtained.

In addition, when processing the spoon part 12 in the above-mentioned work process, by performing the work with reference to the handle base 13, accurate work can be performed without positional deviation. The rolling process and the design forming process of the handle may be performed in the reverse order. Furthermore, after molding, it goes without saying that it is buffed to give it a beautiful finish.

By forming a relief of an arbitrary design on the spoon in this way, it has been possible to create a spoon with the widest surface area, instead of the conventional method of applying designs only to the handle to obtain the decorative effect, which naturally had its limitations. Designs can also be applied to the parts using mass-producible means, so as in the above example, the relief applied to the spoon (horse's neck) and the design applied to the handle (horseshoes, bits, etc.) A spoon full of elegance can be obtained by matching the shape of the spoon (orthosis), and the relief on the spoon part is formed flat and then drawn into a spoon shape, making it easy to mass-produce, which was previously unthinkable. Spoons with unique decorative effects became available at low cost.

It goes without saying that according to the spirit of the present invention, the present invention can be applied not only to items such as tea spoons, but also to soup spoons with round spoons, or to items whose handles are made of materials other than metal. Nor.

[Brief explanation of the drawing]

The drawings show one embodiment of the method of the present invention, in which Fig. 1 shows the outline of the material, Figs. Fig. 4 is a back view of Fig. 3, Fig. 5 is a sectional view taken along line XX of Fig. 3, and Fig. 10 is a perspective view of the obtained product spoon. . 1... Material, 2... Spoon forming part, 3... Handle forming part, 4... Relief, 5, 5'... Rolling roller,
7... Upper die for drawing, 7'... Lower die for drawing, 8... Elastic layer, 10... Product spoon, 1
2...Spoon part, 13...Handle part.

Claims (1)

[Claims] 1. In the process of manufacturing a metal spoon made of stainless steel, etc., the material is used to directly roll the spoon-forming part to the required thickness, and then the desired design is placed on the upper surface of the spoon-forming part at the appropriate place. The embossed design is formed by pressing with a press mold that has been developed and engraved in advance.
Next, a predetermined expanded shape of the spoon is punched out, and the embossed pattern side formed earlier is then stamped using an upper mold in which the surface of the hard body that forms the required convex curved surface is covered with an elastic layer. A method for manufacturing a spoon with a relief formed on the spoon portion, which comprises immersing the spoon in the elastic layer and drawing it into a desired shape by side work with a concave lower mold while pressing with a hard body portion.