JP3075877U - Knife with angle adjustment function - Google Patents

Abstract

(57) [Summary] [Problem] The height of a cutting board should be determined according to the height of a person using a kitchen knife, but it is not easy to realize it.
In addition, the handle of the knife is located far away from the cutting edge, and it is difficult to transmit sufficient pressure to the cutting edge. A handle attached to a blade is supported by a support shaft having an uneven radial line, and can be easily changed in accordance with the height of a cutting board. Shape was adopted.

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the shape of a handle of a kitchen knife or the like and the mounting angle thereof.

[0002]

2. Description of the Related Art Conventionally, in this kind of kitchen knives, a handle is attached in parallel with an edge of the blade and on an extension of the blade, and a blade edge is formed so as to be substantially parallel to the blade or to slightly rise in the tip direction. In general, the handle has a circular cross section, and is somewhat oval and made of wood.

[0003] Japanese Patent Application Laid-Open No. 11-176639 discloses a device capable of slightly adjusting the angle between the cutting blade and the hand, and Japanese Utility Model Application Laid-Open No. 62-148281 discloses a device capable of greatly changing the angle. It has been disclosed.

[0004] In recent years, as aging progresses and social participation of persons with disabilities becomes active, barrier-free is required in all aspects of life. An object of the present invention is to provide a kitchen knife having a shape easy to use for such people. For example, certain pickles that are cut so that they can be placed directly on the dining table are commercially available, but these are currently used by nursing knives at nursing homes, etc. However, with conventional knives, it is difficult to apply a force to the cutting edge (cutting blade), and improvement is desired.

[0005] Furthermore, the height of a kitchen countertop is determined based on the cooking posture of a woman of average height, but the height of each woman varies widely. It is impossible to manufacture a cooking table suitable for the kitchen knife, and there is no other way to adjust the angle by adjusting the angle between the knife edge and the handle.

In a normal kitchen knife, the handle protrudes from the jaw portion, which is one end of the blade. In other words, the handle is mounted so as to move away from the blade, so that even if a force is applied to the handle, the load is transmitted to the cutting blade. It is difficult for even a healthy person to cut hard food such as pumpkin, for example.

To solve such inconveniences, Japanese Utility Model Laid-Open No. 62-148281 discloses a structure in which a handle is rotated and fixed immediately above a kitchen knife to apply a vertical force to the handle. Although it is reasonable, in this case, there is a concern that the handle may not be able to be gripped, so that it may easily shake right and left, and at the same time, the position of the fingertip may become unstable, which may cause injury.

[0008]

[Problems to be Solved by the Invention] As described above, it is desirable that the angle at which the handle is attached to the kitchen knife body be adjustable so that the user's force can be easily applied to the cutting blade of the kitchen knife. The challenge is to make sure that the safety is ensured during use.

[0009]

In order to solve the above-mentioned problems, in the invention of claim 1, an inclined notch of 1 to 10 ° is formed in the jaw surface of the blade and 6 to 9 ° is formed in the blade. By this, the angle of attachment of the handle that can be detachably attached can be turned within the range of 20 ° below and 110 ° above the extension of the blade, and can respond to the height of the user. Further, the load on the cutting edge was facilitated.

[0010] The shape of the handle, which can be attached to the blade at an angle, is characterized in that irregularities for preventing slippage are formed on the base and the end of the handle when gripping the handle. planned.

[0011] By combining a blade with a notch formed by cutting a sloping surface of 1 to 10 ° on the chin surface and 6 to 9 ° on the rim surface, and a handle having a small diameter at a position where the forefinger and the little finger abut upon gripping, a Even when the handle was gripped and a force was applied in the longitudinal direction, the hand was prevented from slipping.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings showing an example of the embodiment. FIG. 1 shows a side view of the kitchen knife according to the present invention, FIG. 2 shows a side view showing a rotation limit of the handle, and FIG. 3 shows a fastening tool for attaching the handle at an arbitrary angle with respect to the blade. FIG. 4 is a side view showing an example of usage of the kitchen knife, and FIG. 5 is a side view showing a conventional kitchen knife.

First, a conventional knife 10 will be described. As shown in FIG. 5, when the blade of the kitchen knife 10 is horizontal with the blade 10a, the jaw 10b is formed at a right angle to the blade 10a, and the blade 10c is provided on the opposite side of the blade 10a. As the handle 11, a columnar or elliptical column is attached.

As shown in FIG. 1, the knife 1 according to the present invention comprises a blade 2 and a handle 3 which are rotatably integrated with a support shaft 4 having an angle adjusting function. The blade 2 is provided with a gradient α of 6 to 9 ° so that its proximal end 2b rises about 4 to 6 mm at its distal end with respect to the horizontal mines 2a. Is formed at an angle of 80 to 89 ° (therefore, β = 1 to 9 ° in FIG. 1), and the lower end jaw 2d is the same as the perpendicular from the upper end of the jaw 2c. The jaw 2c has an angle β of 3 to 6 ° and a protruding amount L of the jaw 2d of 5 to 10 mm. In addition, a polygonal shaft insertion hole 2f is opened near the intersection of the base side ridge 2b and the jaw 2c, and 2e in the figure is a cutting edge.

The handle 3 attached to the blade has portions 3a and 3b where the forefinger and little finger abut when the hand is gripped in a normal direction, and is formed thinner than the portion 3c where the middle finger and the third finger abut. Both ends 3d, 3d of the handle 3 are formed thick. Further, a support plate 3e having a polygonal shaft insertion hole 3f is fixed to the tip of the handle 3 so as to protrude therefrom.

As shown in FIG. 3, the support shaft 4 having an angle adjusting function for supporting the blade 2 and the handle 3 incorporates a female screw 4a, and has a radially uneven line on the surface of a polygonal projection 4b. The fastening member 41 formed with 4c has its polygonal projection 4b press-fit into a spindle insertion hole 2f formed in the blade 2. A tightening member 42 formed on the surface of the polygonal projection 4e with a striation 4d meshing with the radial uneven striation 4c is inserted into the support shaft insertion hole 3f of the support plate 3g protruding from the handle 3. It is fixed by press-fitting the square projection 4e. Although FIG. 1 shows the blade 2 having a tapered shape, it goes without saying that any blade, such as a Nakiri knife, a sashimi knife, or a bread knife, may be used.

The clamps 41 and 42 into which the tightening members 41 and 42 are press-fitted are opposed to each other on the radially uneven stripes 4c and 4d, and are fastened by the male screw 6 via the pressing spring 5. In this case, it is needless to say that the mounting angle between the blade 2 and the handle 3 can be changed depending on the relative positions of the radial uneven stripes 4c and 4d.

In the blade according to the present invention, by forming the base side ridge 2b at an inclination of 6 to 9 °, the handle 3 is rotated upward (in FIG. The upper proximal end comes into contact with the proximal end 2b, so that the angle of the handle 3 with respect to the horizontal end 2a is 70 °. In this way, the handle 3 can be held by the opposite hand by contacting the handle 2b (see FIG. 4), and at the same time, the other hand can be held above the handle 3 by holding both hands. The load can be applied stably, and cutting of a hard object such as a pumpkin becomes easy.

When the handle 3 is rotated downward, the lower base end of the handle 3 comes into contact with the chin 2c, so that the handle 3 has an angle of 20 ° downward with respect to the horizontal mines 2a. A knife set at this angle will be used if the cutting board is higher than normal for the user's height. By setting the upper and lower rotation limit to 130 ° in this way, it was confirmed by a monitor survey that the device was suitable for use by a person having a height of 145 cm to 175 cm.

[0020]

The knife of the present invention can easily apply a force to the tip of the blade because the angle of attachment between the blade 2 and the handle 3 is variable within a range of 130 °. The reverse handgrip shown in Fig. 4 was popular in the nursing homes for picking pickles.

Protrusion of the jaw tip 2d on the handle 3 has an effect of facilitating the work of hollowing out a core such as an apple.

Regarding the shape of the handle 3, the contact portions of the index finger and the little finger are made slightly thinner than before and after, so that the kitchen knife can be gripped by either hand-handed or hand-reversed hand in the front-back (longitudinal) direction. No more slipping, improving safety, especially in reverse hand grip.

[Brief description of the drawings]

FIG. 1 is a side view of a kitchen knife according to the present invention.

FIG. 2 is a side view showing a variable mounting angle of a handle and a blade.

FIG. 3 is a perspective view of a spindle having an angle adjusting function attached to a handle and a blade.

FIG. 4 is a perspective view showing a state where the kitchen knife is held in the opposite hand.

FIG. 5 is a side view showing a conventional kitchen knife.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 kitchen knife 2 blade 2b proximal end blade 2d jaw tip 2f spindle insertion hole 3 handle 4 spindle with angle adjustment function 4c 4d radial uneven stripe 5 pressing spring 6 male screw

 ──────────────────────────────────────────────────続 き Continued on the front page (73) Utility model holder 598103152 Daiwa Gosei Co., Ltd. 5-1-1-10 Higashi-Mikunigaoka-cho, Sakai-shi, Osaka (73) Utility model holder 591020515 Teruhiko Inaba 2-chome Midorigaoka-cho, Miki-shi, Hyogo No. 8 at 10 (73) Utility model holder 500400962 Yasunori Goto 4-9-9-303, Shiomidaicho, Suma-ku, Kobe-city, Hyogo Prefecture (73) Utility model holder 500400995 Ichiro Hirata 1-Takahacho, Nada-ku, Kobe-shi, Hyogo Prefecture 1 Ishiyagawa employee House 3-106 (72) Inventor Seiichi Takekawa 5-6 Shibacho, Miki-shi, Hyogo Miki Cutlery Co., Ltd. (72) Inventor Joe Yukito 490 Ishino, Bessho-cho, Miki-shi, Hyogo Co., Ltd. Inside Ictomo (72) Inventor Yoshiaki Tanaka 565 Tobori, Himeji City, Hyogo Prefecture Well Harmony Co., Ltd. (72) Inventor Takuji Okuno Higashi Mikunigaoka, Sakai City, Osaka Prefecture 5-10-10 Daiwa Gosei Co., Ltd. (72) Inventor Teruhiko Inaba 2-8-8, Midorigaoka-cho, Miki-shi, Hyogo (72) Inventor Yasunori Goto 4--9 Shiomidaicho, Suma-ku, Kobe-shi, Hyogo No. 9-303 (72) Inventor Ichiro Hirata 1-1, Takayacho, Nada-ku, Kobe-shi, Hyogo Pref.

Claims (3)

[Utility model registration claims] 1. A removably attachable handle having an inclined surface of 1 to 10 ° on the jaw surface of the blade and 6 to 9 ° on the rill surface, the attachment angle of which is on the extension of the blade body. A kitchen knife with an angle adjustment function characterized by being variable in the range of 20 ° below and 110 ° above. 2. A kitchen knife with an angle adjusting function, characterized in that a handle which can be attached to the kitchen knife at an angle is formed with uneven portions for preventing slip at its base and end. (3) 1 to 10 ° on the chin surface and 6 to 9 on the mince surface.
A knife with an angle adjusting function, which is a combination of a blade having a notched inclined surface at an angle of ° and a handle having a thinner contact portion between an index finger and a little finger at the time of gripping.