JPH0744295Y2 - Knives - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Use) The present invention relates to improvement of a kitchen knife used at home.

(Prior Art) A conventional knife, particularly a replaceable knife, uses a thin metal plate to reduce the material cost of the blade. However, the thinner the blade is, the less strength it has, and there is a drawback that the blade bends when cutting a hard object.

Also, regarding the connection between the blade body and the handle, even if the blade body and handle are connected and fixed by a single stop shaft, the blade body and the handle rotate relatively about the stop shaft, so that they are prevented. Therefore, it was necessary to connect using two stop shafts. However, when the knife is a replaceable blade type, the fact that there are two retaining shafts means that the two retaining shafts must be loosened and fixed when the blade body is replaced, which complicates the work. It was.

(Problems to be solved by the invention) The present invention was devised mainly for a replaceable knife, and even if the blade is thin, the blade does not bend during use, and An object of the present invention is to provide a knife capable of connecting a body and a handle with a single retaining shaft.

(Means for Solving Problems) A configuration of the present invention will be described with reference to the drawings showing examples.

In the blade body 1, two elongated push-out portions 6 due to squeezing extend from the end of the core 4 to the vicinity of the cutting edge 5. Further, the core 4 is provided with one square hole 9.

The handle 2 is provided with a groove 8 for holding the core 4 of the blade body in its front portion, and the cross-sectional shape of the groove 8 is provided in the core 4 as shown in FIG. To receive the push-out portion 6, a receiving portion 7 that matches the cross-sectional shape of the push-out portion 6
Is provided.

The set shaft 3 for connecting the blade 1 and the handle 2 is composed of a male screw 10 and a female screw 11. The male screw 10 has a circular cross section in its head and shaft, and a driver groove is provided in the head. ing. The female screw 11 has a circular head portion, but the shaft portion has a quadrangular cross section so as to match the square hole 9 of the core.
Therefore, shaft holes 12 and 13 conforming to the cross-sectional shape of the shaft are formed in the front portion of the handle 2 so that the stop shaft is inserted.

FIG. 7 shows another embodiment, in which a vertical squeeze 15 is provided in order to prevent the cut object from adhering to the blade surface.

(Operation / Effect) The present invention has the above-described structure, and in order to assemble it as a knife, the core 4 is inserted into the groove 8 from the front end of the handle 2, and the push-out portion 6 of the core is received by the receiving portion 7 of the handle. And the both are fixed by the stop shaft 3.

The kitchen knife assembled in this way has the following effects.

(1) Since the push-out portion 6 of the core and the receiving portion 7 provided in the groove are aligned in the groove 8 of the handle, the blade body 1 is securely fixed to the handle 2, and particularly one stopper is provided. Even when the shaft 3 is used, there is no possibility that the blade 1 will rotate about the stop shaft 3 during use.

(2) In order to provide the knife at a low cost, it is necessary to make the blade thin and reduce the material. Therefore, in this case, since the conventional product, especially the core, has a small width (vertical direction), the strength becomes small and the handle 2 and the base 16 of the blade 1 are bent. On the other hand, in the present invention, since the push-out portion 6 extends from the end of the core 4 to the vicinity of the cutting edge 5, the push-out portion 6 increases the strength of the core and eliminates the drawbacks of the conventional product. . Further, the blade body 1 as a whole is less likely to bend.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a front view of a blade body, FIG. 2 is a front view of a finished product, FIG. 3 is a sectional view of a connecting portion of a handle and a blade body, and FIG. FIG. 5 is a sectional view of the handle, FIG. 5 is a front view of the handle, FIG. 6 is a sectional view of the core, and FIG. 7 is a front view of a blade in another embodiment. 1. Blade, 2. Handle, 3. Stop shaft, 4. Core 5. Blade edge, 6. Extruding part, 7. Receiving part

Claims (1)

[Scope of utility model registration request] 1. A knife comprising a blade 1 and a handle 2 connected by a stop shaft 3, wherein the blade 1 has a groove-like shape extending continuously from the end of the core 4 to the vicinity of the cutting edge 5. At least one push-out portion 6 extends, and a receiving portion 7 for receiving the push-out portion 6 formed on the core is provided on the inner surface of the handle 2 for holding the core 4. A kitchen knife characterized by that.