Soba cutting safety tool to protect your hands from soba knife
A fish-shaped wooden safety tool with a knife guard surface addresses the risk of hand injury during buckwheat noodle cutting by enabling closer hand positioning and intercepting the blade, facilitating safer and more rhythmic cutting.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- 神田 恵介
- Filing Date
- 2026-02-04
- Publication Date
- 2026-06-08
AI Technical Summary
Cutting buckwheat noodles with a long-bladed knife poses a risk of hand injury due to the knife slipping off the cutting board and potentially cutting the hand, especially when both hands are used in close proximity for precise cutting.
A fish-shaped wooden safety tool with a knife guard surface is used to hold the cutting board, allowing the hands to be positioned closer together, and the knife guard surface intercepts the blade if it deviates from the cutting board, preventing hand injuries.
The safety tool enables safer and more confident cutting by allowing balanced hand use and intercepting the blade, reducing the risk of injury and enhancing the cutting process's rhythmicity.
Smart Images

Figure 0003256127000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to preventing danger when cutting buckwheat dough with a buckwheat knife in hand - made buckwheat noodle making.
Background Art
[0002] Triggered by the registration of intangible cultural heritage of Japanese cuisine, the interest in Japanese buckwheat has been increasing, and the number of people challenging buckwheat noodle making and participants in buckwheat noodle making classes has also been increasing. However, in buckwheat noodle making, because a dedicated knife with a long blade width is used, participants are likely to feel danger, and currently, the instructors are also troubled by safety guidance.
[0003] Buckwheat noodle making consists of five steps: mixing, kneading, stretching, folding, and cutting. First, buckwheat flour and binding flour (not added in 100% buckwheat noodles) are put into a wooden mortar, water is added and stirred, then kneaded, stretched on an extension board, folded, placed on a cutting board, and cut with a buckwheat knife.
[0004] In this cutting step, the folded buckwheat dough is placed on the cutting board, and a small board (also called a dividing board) that serves as a ruler is held by hand. With a buckwheat knife in the other hand, the blade of the knife is placed against the edge of the ruler part of the small board, and the dough is cut while moving the knife up and down. The knife is handled close to the hand holding the small board.
[0005] This buckwheat cutting knife has a special shape with two blades, one with a long blade width and the other with a short blade width. If not handled carefully, the sharp and highly cutting blade poses a risk of injuring fingers.
[0006] Cutting soba noodles requires precise cutting of the dough to a uniform width. This involves a delicate process of lowering the knife vertically along the support of the cutting board to the cutting board, cutting the dough, then tilting the knife towards the support for the next width, pushing and shifting the cutting board, lifting the knife along the support, and lowering it vertically along the side of the shifted support to cut. If you rush and move the blade up and down, the blade may accidentally slip off the support of the cutting board and touch the hand holding the board, potentially causing a cut. Cutting soba noodles is a dangerous task.
[0007] Therefore, some people try to hold the cutting board as far away from the knife as possible. However, soba cutting involves delicate movements such as holding the cutting board with one hand and the knife with the other, cutting the dough evenly along the guide on the cutting board. It is easier to work if both hands are as close together as possible. However, this increases the risk of injury. [Prior art documents] [Patent Documents]
[0008] [Patent Document 1] Utility Model Registration No. 3121881 [Non-patent literature]
[0009] [Non-Patent Document 1] "Edo-style Soba Noodle Making," Ryohei Ukai, 2009, p. 64 [Overview of the Initiative] [Problems that the invention aims to solve]
[0010] When cutting soba noodles, measures are taken to prevent injury from the knife, such as keeping the hand holding the cutting board as far away from the knife as possible. This invention aims to solve the problem of hand injury by bringing the hand holding the cutting board as close as possible to the ruler part of the cutting board to make soba noodle cutting easier, while also preventing the knife blade from reaching the hand. [Means for solving the problem]
[0011] This invention solves the problem of cutting soba noodles by having the hand holding the cutting board hold a fish-shaped wooden soba cutting safety tool with a knife guard surface. This brings the hand holding the cutting board, which acts as a guide for cutting soba noodles, closer to the hand holding the knife that cuts the dough, making the soba cutting process easier. Furthermore, even if the knife blade accidentally goes over the cushion of the cutting board, it will hit the raised knife guard surface directly before hitting the hand, blocking the movement of the knife and avoiding danger from the knife. [Effects of the Invention]
[0012] By using the soba-cutting safety tool of this invention, the hand holding the knife and the hand holding the cutting board (which acts as a ruler) can be brought closer together during the soba-cutting process, allowing for balanced use of both hands when moving the knife up and down to cut the dough.
[0013] Simply holding the fish-shaped soba-cutting safety tool with the knife guard surface of this invention provides a simple and reliable way to prevent hand injuries.
[0014] In soba noodle making, eliminating the sense of danger and anxiety associated with using a soba knife allows for confident handling of the knife, and this sense of confidence leads to a more rhythmic cutting of the noodles.
[0015] This soba-cutting safety tool is shaped like a fish, fitting the shape of a fox's hand, which is effective for holding down the cutting board. It can be used without any discomfort by experienced soba-making instructors and skilled soba-making professionals.
[0016] Recently, with the soba boom, more and more people want to try making soba themselves or experience soba making, and many are seeing and touching soba knives for the first time. However, some people feel that handling soba knives with long blades is dangerous. If people understand that they can handle knives safely with this soba cutting safety tool equipped with a knife guard, their sense of danger will decrease, and they will be able to participate in soba making workshops with peace of mind. Instructors teaching soba making at workshops will also be able to explain how to prevent dangers associated with soba knives and provide safety guidance. Soba making can be taught without worry even to children who are not safe to handle knives.
[0017] With the present invention, if the avoidance of danger from the buckwheat knife is understood and the number of buckwheat cutting people increases, the demand for buckwheat flour will also increase, leading to a thriving cultivation of buckwheat in the region. This will contribute to the elimination of abandoned cultivated land as an alternative to rice cultivation and also to regional revitalization as a material for local creation, and it will also have the effect of becoming something of value with both hobby and practical benefits.
Brief Explanation of Drawings
[0018] [Figure 1] It is a cross-sectional view of the buckwheat cutting safety tool of the present invention. [Figure 2] It is a perspective view of the buckwheat cutting safety tool of the present invention. [Figure 3] It is a cross-sectional view of the buckwheat cutting safety tool of the present invention set on a go board. [Figure 4] It is a plan view of the buckwheat cutting safety tool of the present invention set on a go board. [Figure 5] It is a cross-sectional view of the mechanism in which the buckwheat cutting knife hits and is blocked by a higher knife guard surface after jumping over the pillow (ruler part) of the go board. [Figure 6] It is a plan view of the mechanism in which the buckwheat cutting knife hits and is blocked by a higher knife guard surface after jumping over the pillow (ruler part) of the go board.
Modes for Carrying Out the Invention
[0019] The buckwheat cutting process is as follows: Place the folded buckwheat dough on a cutting board, place a go board that serves as a ruler on it, place your hand on the back part of the buckwheat cutting safety tool of the present invention, wrap your middle finger and ring finger around the belly part, set the cut at the mouth part perpendicular to the pillow of the go board, spread your index finger, thumb, and little finger wide like a fox hand, and hold the go board with four points against the belly part. Hold a buckwheat knife in the other hand, place the blade against the pillow of the go board, use the pillow as a ruler, move the buckwheat knife up and down to cut the buckwheat dough. Repeat this.
[0020] The blade of the knife constantly moves up and down, using the cutting board's cushion as a guide to cut the dough, so it moves away from and in close contact with the cushion. Even if the blade accidentally crosses the cushion and comes towards the hand when it separates, the raised knife guard surface of this soba-cutting safety tool blocks the blade, stopping its movement and preventing it from reaching the hand. This ensures the safety of the hand. [Examples]
[0021] The following describes an embodiment with reference to the drawings. Figures 1 and 2 are cross-sectional and perspective views of the soba-cutting safety tool of the present invention, which has a fish-shaped wooden knife guard surface with a 45-degree inclination angle, and Figures 3 and 4 are cross-sectional and plan views of the tool set on a cutting board.
[0022] Figures 5 and 6 are cross-sectional and plan views showing the position of the blade of a soba knife (10A) as it cuts along the cushion (8) of the cutting board, moving the knife up and down, and the position of the blade of a knife (10B) when the knife accidentally jumps over the cushion and the blade is guarded by a higher knife guard surface.
[0023] Once you understand this, you can handle the knife with confidence without worrying about danger, and you can concentrate your mind without tensing your shoulders, moving the knife so that the soba dough is cut evenly and rhythmically. [Explanation of Symbols]
[0024] 1. Soba noodle cutting safety tool body (length 22cm, height 4.5cm, width 2.5cm) 2. Knife guard surface (angle of inclination: 45 degrees) 3. Notches (the parts that are notched to set the pillow, which serves as the ruler for the shogi piece board) 4. The belly (the part with the notches that you hold with your middle and ring fingers) 5. Back (the part where the palm of the hand touches) 6. Tail (the rear part that holds down the chessboard) 7. Komai-ita (a tool for pressing down the soba dough) 8. Pillow (the ruler part of the chessboard) 9. Soba knife 10. The blade of a soba knife 11. Buckwheat dough 12 Cutting board 13 Index finger 14 middle finger 15 Ring finger 16 Little finger 17 Thumb 18 moves
Claims
1. This soba-cutting safety tool features a slanted surface (45 degrees) that guards against the dangerous movement of the soba knife blade.
2. This soba-cutting safety tool features a notch that stabilizes the movement of the cutting board, which is used to hold down the soba dough.
3. This soba-cutting safety tool features a notch that allows you to grip it with your middle and ring fingers while holding it with your palm.
4. A fish-shaped wooden soba noodle cutting safety tool having the characteristics of claims 1, 2, and 3.