Knife with arc-shaped blade

Abstract

To provide a knife with an arc-shaped blade for allowing a person having a weak gripping power to cook safely and easily.SOLUTION: A knife with an arc-shaped blade comprises a knife body including: a blade portion having an arc-shaped cutting edge on the arc-shaped lower tip portion; and a base portion that receives and integrates to incorporate an upper portion of the blade portion to serve as a substitute for a handle on which the fingers and palm are placed. The blade portion is provided with a ridge portion on a straight line across an upper tip. Therein the ridge portion is provided with: on an upper front tip, a front ridge portion in a configuration where the ridge portion is bent at a right angle and extending downward; and on an upper rear tip, a rear ridge portion in the configuration where the ridge portion is bent at the right angle and extending downward. The knife with an arc-shaped blade is characterized in that the arc-shaped cutting edge is disposed on the arc-shaped tip portion of the blade portion between the lower tip portion of the front ridge portion and the lower tip portion of the rear ridge portion.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] To provide a kitchen knife with an arc-shaped blade that enables a person with a weak grip due to illness or injury to easily cook food such as vegetables, fruits, meat and fish. [Background technology]

[0002] Traditionally, kitchen knives have a handle with a curved tip and a mostly straight cutting edge, and are used to prepare ingredients such as vegetables, fruits, meat and fish. Furthermore, a knife has been provided in which the blade is kept to a minimum necessary, and the handle is located above the blade, allowing for safer and more secure use by cutting under the handle (see Patent Document 1). Also, there has been provided a convex arc blade knife (see Utility Model Document 2) having a cutting edge in which a large number of small convex arcs are formed successively. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2022-051987 Public Relations Utility Model Document No. 2 Jitto No. 3207312 Summary of the Invention [Problem to be solved by the invention]

[0004] In order to hold the handle of a conventional knife, which has a curved tip and a mostly straight cutting edge, and cook ingredients such as vegetables, fruits, meat, and fish, a certain level of grip strength is required to steadily and freely control the knife.It has been impossible for people with weak grip strength due to illness or injury to cook with a knife safely, comfortably, and easily. The present invention has been made in order to solve the above problems.

[0005] A kitchen knife body is provided with a blade body portion having an arc-shaped cutting edge portion at a lower tip portion of the arc-shaped blade, and a base portion that replaces a handle and on which the fingers and palm of the hand are placed, and which houses and integrates an upper portion of the blade body portion, the blade body portion has a ridge portion at a horizontally straight portion at the upper tip, a front ridge portion at the front tip of the upper portion, the ridge portion being bent downward at a right angle and extending therefrom, and a rear ridge portion at the rear tip of the upper portion, the ridge portion being bent downward at a right angle and extending therefrom, An arcuate cutting edge is provided at the arcuate tip portion of the blade body portion between the lower tip portion of the anterior ridge and the lower tip portion of the posterior ridge. The knife having the arc-shaped blade is constructed as described above.

[0006] To provide an apparatus for cutting and cooking food such as vegetables, fruits, meat and fish safely, easily and comfortably, which was previously thought to be impossible for a person with weak grip strength due to illness or injury. In addition, when used by a healthy person, the arc-shaped blade rotates to cut ingredients, making cooking easier, more enjoyable, and more convenient than conventional knives. And the arc-shaped tip of the blade prevents the knife from being used as a murder weapon in a crime. [Brief description of the drawings]

[0007] [Figure 1] A perspective view of the present invention. [Diagram 2] FIG. 1 is a perspective view showing a state in which the present invention is used; [Diagram 3] FIG. 1 is a perspective view showing a state in which the present invention is used; [Figure 4] Partial cross-sectional view of the present invention [Diagram 5] FIG. 1 is a partial cross-sectional view showing a state in which the present invention is used; [Figure 6] FIG. 1 is a perspective view showing a state in which the present invention is used; Modes for carrying out the present invention

[0008] Hereinafter, an embodiment of the present invention will be described. First, the arc-shaped blade knife (1) of the present invention is available in two types, one for right-handed use and one for left-handed use. The structural form is the same for both, except that the left and right are reversed. In this embodiment, the right-handed version will be described. Claim 1 (A) A kitchen knife body (2) is provided with a blade part (3) having an arc-shaped cutting edge part (5) at the lower tip part of the arc-shaped blade part (3), and a base part (4) which serves as a handle and on which the fingers and palm of the hand are placed, and which houses and fixes the upper part of the blade part (3) as an integral part. See Figure 1. (b) The blade portion (3) and the cutting edge portion (5) are made of steel, stainless steel, ceramic, titanium, or the like. (c) The base portion (4) is made of plastic or wood. (iv) The exposed part of the blade portion (3) is about 14 cm wide at the widest point and 6 cm long at the longest point. (v) The base portion (3) is about 18 cm long, 4 cm wide at the widest point and 35 mm long at the longest point. (F) The blade portion (3) has a ridge (6) in a horizontally straight line at the upper end, a front ridge (6a) at the front end of the upper portion where the ridge (6) extends downward at a right angle, and a rear ridge (6b) at the rear end of the upper portion where the ridge (6) extends downward at a right angle. See Figure 1. The front ridge portion (6a) and the rear ridge portion (6b) are both provided with a length of about 3 cm. (g) The cutting edge portion (5) is provided in an arc-shaped tip portion of the blade portion (3) between the lower tip portion of the anterior ridge portion (6a) and the lower tip portion of the posterior ridge portion (6b). (h) The base portion (4) has a built-in portion (4a), and the blade portion (3) housed in the built-in portion (4a) has an attachment portion (3a) parallel to the ridge portion (6), and the attachment portion (3a) is housed and built into the built-in portion (4a) and fixed with a mounting metal portion (3b) or adhesive, so that the base portion (4) and the blade portion (3) are integrally provided. See Fig. 4. Claim 2 (i) The base portion (4) has flat surfaces near the center of the upper surface and the center of the lower surface, and the left and right sides are rounded like a round bar. See Figure 1. The platform portion (4) is generally in the shape of a round bar with the left and right side surfaces slightly bulging out laterally. (j) The base portion (4) described above has a rounded portion on the side between a position slightly in front of the front tip portion on the left side and the central portion, which is cut away to provide a vertical, flat blade tip viewing portion (7). (k) The blade tip viewing portion (7) is about 6 cm long and 3 cm wide. See FIG. 1. (l) The cutting edge viewing portion (7) is provided with a thumb rest portion (8) inclined downward toward the front near the rear tip portion. (W) The support portion (4) has a plurality of recessed finger support portions (9) at appropriate positions on the right side surface, and also has protrusions (9a) near the front end of the front side surface and near the rear end of the rear side surface. Claim 3 (f) The blade body portion (3) is provided with a box-shaped sheath portion (10) that matches the shape of the blade body portion (3) and stores the blade body portion (3) in a removable manner. See FIG. 6. (Y) The sheath portion (10) has a plurality of holes (10a) on the front and back surfaces. (p) The sheath portion (10) is made of plastic or wood. The present invention has the above-mentioned structure. When using the arc-shaped blade knife (1) of the present invention, first remove the sheath (10) housing the blade portion (3) of the knife body (2), and lift the knife by pinching the base portion (4) between the thumb (O) and ring finger (K) of the dominant hand (X). At this time, the thumb (O) is placed on the thumb rest (8), the index finger (H) and middle finger (N) are placed on the flat portion of the rest (4), and the ring finger (K) and little finger (E) are placed on the finger rest (9). Next, the cutting edge portion (5) is placed on the cutting board (M) while contacting the front portion of the food material (G) placed on the cutting board (M), and the arc-shaped blade body portion (3) is rotated forward using the part of the cutting edge portion (5) contacting the cutting board (M) as a fulcrum, so that the food material (G) is cut as the arc-shaped cutting edge portion (5) rotates. At this time, the cutting edge viewing portion (7) does not obstruct the field of view, so that the movement of the cutting edge portion (5) can be visually confirmed, which is safe and secure. By pushing the upward facing base part (4) downward, the integral arc-shaped blade part (3) automatically rotates, rotating the arc-shaped cutting edge part (5), so that a strong force is not required and a user (R) with a weak grip can cook easily, comfortably and safely. Of course, when used by able-bodied people, it feels fresh and easy to use compared to conventional knives, making cooking easier and more enjoyable. In addition, the protrusions (9) on the sides prevent the hands from slipping during cooking, and when the knife body (2) is placed on the cutting board (M) during cooking, the protrusions (9) create a space so that the base portion (4) does not come into contact with the cutting board (M) and does not get wet. After use, the arc-shaped blade knife (1) is stored by storing the blade portion (3) in the sheath portion (10). The sheath (10) has ventilation holes (10a) that allow water to drain off and keep the sheath dry, making it hygienic and reliable. [Explanation of symbols]

[0009] 1 Knife with arc-shaped blade, 2 Knife body, 3 Blade body, 3a Attachment, 4 Base, 4a Built-in, 5 Blade tip, 6 Ridge, 6a Front ridge, 6b Rear ridge, 7 Blade tip viewing, 8 Thumb rest, 8a Finger rest, 9 Convex, 10 Sheath, 10a Hole, X Dominant hand, O Thumb, H Index finger, N Middle finger, K Ring finger, E Little finger, M Cutting board, S Food, 3b Attachment bracket

Claims

1. A kitchen knife body is provided with a blade body portion having an arc-shaped cutting edge portion at a lower tip portion of the arc-shaped blade, and a base portion that replaces a handle and on which the fingers and palm of the hand are placed, and which houses and integrates an upper portion of the blade body portion, the blade body portion has a ridge portion at a horizontally straight portion at the upper tip, a front ridge portion at the front tip of the upper portion, the ridge portion being bent downward at a right angle and extending therefrom, and a rear ridge portion at the rear tip of the upper portion, the ridge portion being bent downward at a right angle and extending therefrom, A kitchen knife with an arc-shaped blade, characterized in that the cutting edge portion is provided in an arc-shaped tip portion of the blade body portion between the lower tip portion of the front ridge and the lower tip portion of the rear ridge.

2. The platform portion has flat surfaces near the center of an upper surface and near the center of a lower surface, and has rounded left and right side surfaces like a round bar. The platform portion is provided with a vertical, flat blade tip viewing portion by removing a rounded portion of the side surface between a position slightly in front of the front end portion of the left side surface and a position near the center, The blade tip viewing portion is provided with a thumb rest portion inclined forward and downward near the rear tip portion, The knife with a circular arc-shaped blade of claim 1, wherein the support portion has a plurality of recessed finger rest portions at appropriate positions on the right side surface, and also has protrusions at appropriate positions near the front end portion of the front side surface and near the rear end portion of the rear side surface.

3. The blade body is provided with a box-shaped sheath that matches the shape of the blade body and that stores the blade body in a removable manner.

3. The knife with a circular arc blade according to claim 1 or 2, wherein the sheath has a plurality of holes on both the front and back surfaces.

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