JPS5939014Y2 - Mounting structure of the blade and base of knives, kitchen knives, etc. - Google Patents

Description

[Detailed Description of the Invention] Technical Field This invention relates to a mounting structure for fixing the blade and mouthpiece of a knife, kitchen knife, etc.

PRIOR ART In the past, various methods of attaching force between the blade of a knife, kitchen knife, etc. and the base have been considered, but none of them have always been satisfactory.

%lC When using a metal cap, it is costly and time-consuming to manufacture the cap in one piece by casting or forging, or to form the cap by welding or caulking two cap-shaped metal members. It took a while.

The purpose of the second invention is to provide a structure for attaching the blade and the cap, which can strengthen the attachment between the blade and the cap and facilitate the production of the cap.

EXAMPLE Below, an example in which this idea was realized in a kitchen knife is shown in Figures 1~
Explaining according to FIG. 4, reference numeral 1 denotes a blade part that is attached to the blade of a kitchen knife, and a core 2 is provided protruding from the base end of the blade part 1.
A recess 2a is provided at the upper part of the base end, and a 7'C spring part 3 is provided at the lower part by forming a cantilever type free end by a notch 3a which is opened at the rear of the core 2.

Note that a stepped portion 3b is provided at the lower rear end of the spring portion 3 by a notch.

4V′i The cap has an oval-shaped cross section, and has a groove portion 5 that is open upward and downward and forward, which is fitted into the base end of the core 20, and one end that corresponds to the recessed portion 2a and the stepped portion 3bK of the spring portion 30, and has one end rearward. A through hole 6 whose other end is open to the inner end of the groove portion 5 is formed therein.

Reference numeral 7 denotes a handle, into which a core 2 is fitted into a groove formed in the front part and caulked with studs 8.

Next, the manufacturing process of the knife constructed in this way will be described.

1. First, the blade part 1 and the core 2 are punched out from a plate material such as stainless steel and finished by polishing.

Next, cut the bar with an oval-shaped cross section to the length of the base 4,
Next, the groove portion 5 is cut and formed using a saw, and the through hole 6 is punched out using a press to manufacture the cap 4.

Next, fit the cap 4 into the base end of the core 2 with the groove 5 facing forward, and place the upper part of the through hole 6 into the recess 2a and the lower part into the spring part 2.
The 0 step portions 3bK are brought into contact with each other.

The stepped portion 3 at the tip of the recess 2a and the elasticity of the spring portion 30
b is pressed into contact with the inside of the through hole 6 of the cap 4, and is stably and firmly fixed to the core 2.

Next, the core 2 is inserted into the groove of the handle 7 and caulked with the studs 8 so that the front end of the handle 7 is pressed against the rear end surface of the cap 40.

In this way, the core 2 and the cap 4 are fixed stably and firmly, so there is no need to fix the cap 4 by welding.

In addition, since the cap 4 can be manufactured by cutting with a saw and pressing instead of casting or forging, manufacturing becomes extremely easy.

Another embodiment shown in FIG. 5 shows that the spring portion 3 is
This figure shows an example of a kitchen knife in which .

This embodiment differs from the previous embodiment in the structure of the spring portion 3.

Further, although the recess 2a is not formed in the upper part of the core 2 as in the above embodiment, the recess 2a may be formed in the same manner as in the above embodiment.

This embodiment also exhibits the same functions and effects as those of the previous embodiment.

FIG. 6 shows the spring part 3 by providing a through hole 3c in the core 2.
This figure shows an example of a kitchen knife in which .

This embodiment differs from the previous embodiment in that the spring portions 3 are formed at the upper and lower portions of the base end of the core 20.

This embodiment also exhibits the same functions and effects as those of the previous embodiment.

Note that this invention is not limited to the above embodiments, and the shape of the core 2 may be changed by forming the spring portion 3 on the upper part of the core 2 or forming it on both the upper and lower parts. It is also possible to arbitrarily change the material of the base 4 without departing from the spirit of the invention, such as using synthetic resin, reinforced wood, etc. instead of metal.

Effects As explained in detail above, this device uses a core with a spring part that bends in the vertical direction at the base end and a groove part that opens up and down and forward when attaching the blade of a knife, kitchen knife, etc. to the base. and a through hole which corresponds to the spring part and has one end open to the rear and the other end to the inner end of the groove part, and a base fitted to the base end of the core, and the spring part is connected to the inside of the through hole. By fitting and fixing the cap to correspond to the blade, the cap can be attached to the blade stably and securely without any additional means, and it also has the effect of making the cap easy to manufacture, and is suitable for knives, kitchen knives, etc. This is an excellent design for the attachment structure between the blade and the cap.

[Brief explanation of the drawing]

Fig. 1 is a partial sectional view of a kitchen knife showing an embodiment of this invention, Fig. 2 is a partial plan view of the same, Fig. 3 is an enlarged perspective view of the base, and Fig. 4 is A--A in Fig. 1. An enlarged sectional view taken along line A VC, and FIGS. 5 and 6 are partial sectional views of a kitchen knife showing other embodiments, respectively. 1... Blade part, 2... Core, 2a...
...Concave part, 2b...Step part, 3...
Spring part, 3a...notch, 3b...step part, 3c...through hole, 4...mouthpiece, 5.
...Groove, 6...Through hole, 7...
Handle, 8... studs.

Claims (1)

[Scope of utility model registration request] 1. A spring portion 3 bent in the vertical direction at the base end and a recess 2a
Or a core 2 formed with at least one of the step portions 2b and 3b, and a groove portion 5 that is open vertically and forwardly.
and a through hole 6 which corresponds to the spring part 3 and has one end open to the rear and the other end to the inner end of the groove part 5, and a base 4 fitted to the base end of the core 2. 3 is fitted and fixed so as to correspond to the inside of the through hole 6. 2. The spring part 3 has a cut 3a made in the longitudinal direction of the core 2 by at least one force on the upper or lower part of the base end of the core 2.
The blade and cap attachment structure according to claim 1 of the utility model registration claim, which is provided by forming a cantilevered free end. 3. The blade and cap mounting structure according to claim 1, wherein the spring portion 3 is formed by providing a through hole 3c in the core 2.