JPS5946752B2 - How to roll a knife handle - Google Patents

Description

[Detailed description of the invention] The present invention relates to a novel method for inserting a knife handle.

Conventionally, as shown in Fig. 1, the handle holder of a knife is made by integrally molding a knife body 3 with a blade part 1 and a receptacle part 2, and a handle plate 4, 4 is placed on both the left and right sides of the receptacle part 2. The most common methods include fixing with rivets 5, or using a wooden handle 6 with a hole in the center for inserting the buckle 2 into the hole, as shown in FIG.

However, in the former method, since the receptacle part 2 is exposed to the outside, a potential difference occurs between the blade part 1 and the receptacle part 2 during use. It had the disadvantage of corrosion.

In addition, in the latter method, water may enter from the end surface of the wooden handle 6 into which the deposit part 2 is driven, causing the deposit part 2 to corrode within the wooden handle 6, or the wooden handle to come off due to repeated moisture absorption and drying. There was a problem.

In view of the above-mentioned problems, the present invention aims to provide a method for inserting a knife handle that prevents corrosion of the receptacle due to potential difference and also prevents the wooden handle from falling off. The blade part and the buckle part of the knife are molded separately, the buckle part is inserted into a cylindrical carp mouthpiece, the carp mouthpiece and the buckle part are integrally welded to the blade part, and the buckle part is molded into one body. A method for inserting a knife handle, which is characterized by inserting the handle into the center of a wooden handle and driving the open end of the carp mouthpiece into the end face of the wooden handle.

Next, an embodiment of the present invention will be described with reference to FIG. 3 and the following drawings.

In this method, when manufacturing a knife body 10 made of stainless steel or steel, a blade part 11, a receptacle part 1
2 are formed separately, and a short cylindrical carp mouthpiece 13 is formed separately from these.

The carp cap 13 has an outer diameter smaller than the outer diameter of the end surface of a wooden handle 14 (described later), and an inner diameter larger than the money receiving part 12.

Insert the pay-in part 12 into this carp cap 13, and
2. Weld the carp mouthpiece 13 to the base end of the blade part 11 to integrate the blade part 11, the deposit part 12, and the carp mouthpiece 13.

After that, the welded part is ground and further polished to finish.

The wooden handle 14 is attached to the knife body 10 finished in this way.
can be inserted.

This wooden handle 14 has a money receiving hole 15 opened from one end to the other end, and the end surface of the wooden handle 14 is connected to the carp cap 13 described above.
The outer diameter of the opening end should be larger than the outside diameter of the opening end.

The payment part 12 is inserted into the hole 15 of the wooden handle 14 formed in this way.
is press-fitted, the open end of the carp cap 13 is brought into contact with the end surface of the wooden handle 15, and the carp cap 13 is further driven into the end surface of the wooden handle 14.

In addition, when inserting the carp, a concave groove 16 is previously formed in the wooden handle 14 according to the shape of the end of the carp cap 13, as shown in FIG. 3, and the carp cap 13 is press-fitted into the groove. It may be done as follows.

The knife handle insertion method of the present invention is constructed as described above, and the knife body is formed by welding the blade part, the buckle part, and the carp cap, which are formed on each side, to each other, and the wooden handle is attached to the edge of the carp cap. By hammering into the end, the wooden handle and the knife body fit tightly together, effectively preventing water from entering the insertion part of the payload part, and eliminating potential differences that can cause corrosion. Furthermore, the wooden handle will not fall off even after long-term use.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of a conventional knife, Fig. 2 is an exploded perspective view of another conventional knife, and Fig. 3 shows an embodiment of the present invention, showing the state of the knife body before welding. Perspective views of each part,
FIG. 4 is a side view of the knife body after welding, and FIG. 5 is a cross-sectional view after the handle is inserted. 11...Blade part, 12...Payment part, 13...Carp cap, 14...Wooden handle.

Claims (1)

[Claims] 1. The blade part and the buckle part of the knife are molded separately, the buckle part is inserted into a cylindrical carp mouthpiece, the carp mouthpiece and the buckle part are welded together to the blade part, and the buckle part is made of wood. A method for inserting a knife handle, which comprises inserting the knife into the center of the handle and driving the open end of the carp mouthpiece into the end face of the wooden handle.