JPH11300059A - Manufacture of blade plate for kitchen knife - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate formation of a recess serving for separation of food to be cut off by forming a plurality of recesses side by side along the longitudinal direction of a blade plate, at one side face of the blade after it has been formed by a press. SOLUTION: When the blade plate 1 for kitchen knife provided with recesses 2 for separation of food to be cut off is manufactured, the blade plate 1 is formed by a press and a plurality of recesses 2 are arranged side by side along the longitudinal direction of one side face of the blade plate 1. The parts protruded from the other side of the blade plate 1 due to the formation of the recesses 2 are ground to make it flat. In this way, since recesses 2 can be easily formed by a press or the like without grinding the recesses 2 with labor and time, the forming process of the recesses 2 can be easily carried out and the manufacturing time can be reduced. After formation of the recesses 2, the blade plate 1 is ground so as to be tapered off toward one side edge and a blade edge 3 is formed at one side edge of the blade plate 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a blade for a kitchen knife, which has a recess for cutting off a cut object in the blade.

[0002]

2. Description of the Related Art
This type of knife blade plate with a recess for separating cuts of this type requires a lot of time and effort to manufacture this recess because the predetermined position of the blade plate is ground to form the recesses one by one. It was hanging.

In order to form a knife blade of this kind, it is necessary to perform a step of grinding the blade into a shape tapering toward the edge of the blade. When grinding, the recess must be formed in advance so that the recess remains even if tapering is performed afterwards. Therefore, the concave portion must be ground after grinding the blade plate into a shape tapering toward the blade edge.

However, when the blade plate is ground to a shape tapering toward the blade edge, an error occurs in the thickness of the blade plate for each product, and the thickness of the blade plate is not constant. Even if a plurality of recesses of the same depth are formed, different depths of the recesses will be produced depending on the product,
The present situation is that a shallow product and a deep product can be formed depending on the thickness of the formation place. And if the recess is too shallow, the air will not enter sufficiently between the recess and the cut piece and the separation will be poor, and if it is too deep, the blade plate will not have enough stiffness and the strength is insufficient. There was a problem of becoming a blade plate.

The present invention finds and solves the above-mentioned drawbacks of the conventional manufacturing method, which makes it difficult to form the recesses, shortens the manufacturing time, and reduces the number of recesses as in the conventional example. It is an object of the present invention to provide a revolutionary method for manufacturing a knife blade plate which can be formed at an accurate depth without causing any serious problem.

[0006]

The gist of the present invention will be described with reference to the accompanying drawings.

The blade plate 1 is stamped and pressed to form a plurality of recesses 2 on one side surface of the blade plate 1 along the length of the blade plate 1. The present invention relates to a method for manufacturing a blade for a kitchen knife, characterized in that a portion protruding from the other side is ground to form the other side of the blade 1 as a flat surface.

Further, the blade plate 1 is stamped and pressed to form a plurality of recesses 2 on one side surface of the blade plate 1 along the longitudinal direction of the blade plate 1. The other side surface of the plate 1 is ground to form a flat surface on the other side, and the blade plate 1 is ground to a tapered shape toward one side edge. The method according to claim 1, wherein the blade edge (3) is formed on one side edge.

A plurality of recesses (2) are provided on one side surface of the blade plate (1) at one time along the length direction of the blade plate (1) by a single stamping press forming. 2
The present invention relates to a method for manufacturing a knife blade plate according to any one of the above.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention (how to implement the invention) will be briefly described with reference to the drawings, showing the operational effects thereof.

The blade plate 1 is stamped and pressed to form a plurality of recesses 2 on one side of the blade plate 1 along the length direction of the blade plate 1. The other side surface of the blade plate 1 is ground to form a flat surface.

Therefore, the recess 2 can be simply press-formed by a pressing device or the like without the need for labor and time for grinding the recess as in the prior art. And the time required is reduced.

Further, after the above-described process is completed, the blade plate 1 is ground into a shape tapering toward one side edge, and the blade edge 3 is formed on one side edge of the blade plate 1, so that the taper of the blade plate is reduced. Forming a recess after grinding processing By forming a recess on a blade plate with a non-uniform thickness unlike the conventional method, a recess with an inaccurate depth is not formed. The recess 2 having an accurate depth can be formed in the blade plate 1 having a constant thickness. Therefore, the blade plate 1 has a very good detaching action when using the kitchen knife 5, and does not have insufficient strength due to the formation of the recess 2.
Can be manufactured.

If a plurality of recesses 2 are simultaneously provided in one side surface of the blade plate 1 along the length direction of the blade plate 1 by one embossing press forming, the recess 2 is formed. The production can be performed more easily and the time required can be further shortened as compared with the case where each one is press-formed.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described with reference to the drawings.

First, a blade plate 1 having a predetermined shape as shown in the completed view of FIG. 1 is stamped and press-formed to form a plurality of recesses 2 on one side of the blade plate 1 along the length of the blade plate 1. Provided in the installed state.

In this embodiment, a plurality of recesses 2 are provided side by side in the longitudinal direction of the blade plate 1 on one side surface of the blade plate 1 by a single stamping press molding by a press device.

As shown in FIGS. 1 and 2, the recess 2 is formed in a horizontally long and substantially rectangular shape, and the recess 2 has two sizes, large and small.
Are arranged side by side at a predetermined interval such that the large recess 2 and the small recess 2 are adjacent to each other.

Subsequently, a portion protruding from the other side surface of the blade plate 1 is formed by grinding the recess 2 to form a flat surface on the other side surface of the blade plate 1.

Thereafter, as shown in FIG. 3, the blade plate 1 is ground into a shape tapering toward one side edge, and the blade edge 3 is formed on one side edge of the blade plate 1.

Therefore, in this embodiment, a plurality of recesses 2 are simultaneously provided in one side surface of the blade plate 1 along the length direction of the blade plate 1 by one embossing press forming. As described above, since the recess 2 can be simply press-formed by a single press using a press device without having to grind each recess one by one with much effort and time, the forming process of the recess 2 can be simplified as much. And the time required is significantly reduced.

After the above-mentioned process is completed, the blade plate 1 is ground into a shape tapering toward one side edge, and the blade edge 3 is formed on one side edge of the blade plate 1, so that the blade plate 1 is tapered. Forming a recess after grinding processing By forming a recess on a blade plate with a non-uniform thickness unlike the conventional method, a recess with an inaccurate depth is not formed. The recess 2 having an accurate depth can be formed in the blade plate 1 having a constant thickness. That is, as shown in FIG. 3, the blade plate 1 having an extremely good detaching action when using the kitchen knife 5 and having no strength shortage due to the formation of the recess 2 could be manufactured.

In the drawing, reference numeral 4 denotes a handle of a kitchen knife 5, and 6 denotes a portion of the surface of the blade plate 1 which has not been polished and is provided in a predetermined range along the direction in which the recesses 2 are arranged on one side surface of the blade plate 1. ing.

[0024]

As described above, according to the present invention, a plurality of recesses are provided side by side in the longitudinal direction of the blade plate on one side surface of the blade plate by stamping and press forming the blade plate. Since the recess can be simply press-formed with a press device or the like without having to grind the recess with much time and effort, the process of forming the recess can be performed simply and the required time can be shortened. This is a revolutionary method of manufacturing blade blades for kitchen knives that is extremely practical.

In the second aspect of the present invention, after the step of the first aspect of the present invention, the blade plate is ground into a shape tapering toward one side edge, and a blade edge is formed on one side edge of the blade plate. In this case, the concave portion is formed after the blade plate is tapered and then the concave portion is formed. By forming the concave portion on the blade plate having a non-uniform thickness as in the conventional method, a concave portion having an incorrect depth is formed. And a recess with a correct depth can be formed on the blade plate of a certain thickness before grinding, so that the cutting action when using a kitchen knife is extremely good, and the strength due to the formation of the recess It becomes more practical, for example, because a blade plate without shortage can be manufactured.

According to the third aspect of the present invention, since a plurality of recesses are simultaneously provided in one side surface of the blade plate along the length direction of the blade plate by one stamping press forming, one recess is provided. As compared to the case where one press molding is performed, the production can be performed more easily, and the required time will be further shortened,
It will be more practical.

[Brief description of the drawings]

FIG. 1 is a plan view showing a completed state in which a handle is attached to a blade plate of the present embodiment.

FIG. 2 is an enlarged perspective view illustrating a blade plate of the present embodiment with a part thereof omitted.

FIG. 3 is a sectional view taken along the line A- in FIG.
FIG. 3 is a sectional view taken along line A.

[Explanation of symbols]

 1 blade plate 2 recess 3 edge

Claims (3)

[Claims] 1. A blade plate is stamped and pressed to form a plurality of recesses on one side surface of the blade plate along the blade plate length direction.
A method of manufacturing a blade for a kitchen knife, wherein a portion protruding from the other side of the blade plate is formed by grinding the recess to form the other side of the blade plate as a flat surface. 2. The blade plate is stamped and pressed to form a plurality of recesses on one side surface of the blade plate along the blade plate length direction.
By forming the recess, the portion protruding to the other side of the blade plate is ground to form a flat surface on the other side of the blade plate, and the blade plate is ground to a shape tapering toward one side edge. The method according to claim 1, wherein a blade edge is formed on one side edge of the blade plate. 3. The method according to claim 1, wherein a plurality of recesses are simultaneously provided in one side surface of the blade plate along the blade plate length direction by one embossing press forming. The method for producing a knife blade plate according to claim 1 or 2.