Knife

Abstract

To provide a kitchen knife which allows easy confirmation of whether it is single-edged or double-edged. [Solution] In a knife 1 having a blade portion 10 with a blade body 14 consisting of a single edge or double edges, and a handle portion 20 fixed to the blade portion 10, at least one of the boundary portions 30 between the blade portion 10 and the handle portion 20 and between the blade portion 10 and the handle portion 20 is provided with a mark 40 indicating whether the blade body 14 is consisting of a single edge or double edges.

Description

[Technical field]

[0001] The present disclosure relates to knives that can be differentiated into single-edged and double-edged knives. [Background technology]

[0002] There are single-edged knives, which have a cutting edge only on the front side of the blade, and double-edged knives, which have cutting edges on both sides of the blade, as described in Patent Document 1. When purchasing a knife, the package or instruction manual of the knife will indicate whether it is a single-edged or double-edged knife, so you can check whether the knife is single-edged or double-edged by checking. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2024-94176 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, if you discard the package and instructions after purchasing the knife, you may not know whether the knife is single-edged or double-edged. In that case, for example, when purchasing a knife sharpener, you may not know whether to purchase a single-edged or double-edged knife sharpener, or you may not know which sharpener to use.

[0005] An object of the present disclosure is to provide a kitchen knife that allows easy identification of whether it is single-edged or double-edged. [Means for solving the problem]

[0006] In one aspect of the present disclosure, the kitchen knife comprises: A blade portion (10) having a blade body (14) consisting of a single edge or double edges; A handle portion (20) is fixed to the blade portion, At least one of the blade portion and the handle portion, and the boundary portion (30) between the blade portion and the handle portion is provided with a marking (40) indicating whether the blade is configured as a single-edged blade or a double-edged blade.

[0007] In this way, the knife is provided with a mark indicating whether it is a single-edged or double-edged knife, so that the user can easily check whether the knife he or she is using is a single-edged or double-edged knife based on the mark.

[0008] The reference symbols in parentheses attached to each component indicate an example of the correspondence between the component and specific components described in the embodiments described below. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a diagram showing a knife according to a first embodiment of the present disclosure, where (a) is a diagram showing the knife from a side, and (b) is a diagram showing the knife from above. [Diagram 2] This is a diagram showing examples of single-edged and double-edged markings. [Diagram 3] (a) is a perspective view of a single-edged sharpener, and (b) is a perspective view of a double-edged sharpener. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the following, including other embodiments described below, the same reference numerals will be used to denote the same or equivalent parts in each embodiment.

[0011] (First embodiment) The knife of this embodiment will be described. The drawings attached to this specification show an X-axis, a Y-axis, and a Z-axis. The length direction of the knife is the X-axis, the blade width direction perpendicular to the X-axis is the Y-axis, and the thickness direction of the knife perpendicular to the X-axis and the Y-axis is the Z-axis.

[0012] [Knife structure] The structure of the knife 1 of this embodiment will be described with reference to Figures 1 and 2. The knife 1 has a blade portion 10 and a handle portion 20, as well as a boundary portion 30 between them, and is structured such that the blade portion 10 and the handle portion 20 are connected via the boundary portion 30 in the X-axis direction.

[0013] The blade portion 10 is made of, for example, metal such as steel or stainless steel, ceramics, etc. The blade portion 10 is equipped with a blade body 14 having a cutting edge portion 11, a belly portion (flat) 12, and a back portion 13, and a gusset 15, and the blade body 14 is connected to a boundary portion 30 via the gusset 15.

[0014] The cutting blade 11 is a portion extending from the cutting edge 16 at the tip side to the ridge 17, and is a portion for cutting ingredients. The cutting blade 11 is thin and gradually tapers from the ridge 17 toward the cutting edge 16, forming a blade surface inclined with respect to the XY plane. When the kitchen knife 1 is a double-edged knife, the cutting blade 11 is formed by providing a blade surface inclined with respect to the XY plane on both sides of the one surface 14a of the blade body 14 and the other surface 14b on the opposite side. When the kitchen knife 1 is a single-edged knife, the cutting blade 11 is formed by providing a blade surface inclined with respect to the XY plane only on the one surface 14a side of the blade body 14, which is the front surface of the blade, and the cutting blade 11 is not provided on the other surface 14b side, which is the back surface of the blade. The cutting edge 16 of the cutting blade 11 is sharp throughout from the cutting edge 16a to the middle 16b and the jaw 16c, but the sharpness of the kitchen knife 1 may decrease due to wear or the like. It is possible to restore the sharpness of the cutting edge 11 by sharpening the blade using a sharpener 100 described below, but it is necessary to use a sharpener 100 that is appropriate for the type of knife 1.

[0015] The abdomen 12 is a portion of the surface 14a closer to the back portion 13 than the cutting edge portion 11. The back portion 13 is a portion of the blade body 14 opposite the cutting edge 16. The abdomen 12 and the back portion 13 are places that are rarely touched by the user's hands when using the knife 1, and are not parts of the cutting edge portion 11 that directly cuts ingredients, so the shape of the surface of the abdomen 12 and the shape of the back portion 13 do not have much effect on the sharpness of the knife.

[0016] The gusset 15 is smaller in dimension in the Y-axis direction than the blade body 14, and is the part that connects the blade body 14 to the handle portion 20. There is a continuous connection from the back portion 13 to the gusset 15, and for example, at the position where it connects to the boundary portion 30, the dimensions in the Y-axis direction of the gusset 15 and the boundary portion 30 are made to match. Although not shown, a core is provided so as to extend from the gusset 15 to the opposite side to the blade body 14, and is housed inside the handle portion 20.

[0017] The handle 20 includes a handle portion 21 and a handle end 22, and is rod-shaped and disposed on the opposite side of the cutting edge 16a of the blade 10 of the knife 1. The handle 21 is the part that is held by the user, and has an easy-to-hold shape, such as a polygonal or elliptical shape with rounded corners in a cross section parallel to the YZ plane. The handle end 22 is the rear end of the handle 20, that is, the end of the handle 20 opposite the blade 14. The middle position of the handle 21, that is, the position away from the boundary portion 30 and the handle end 22, is a place that is touched or easily touched by the hand when the knife 1 is in use, but the handle end 22 is a place that is difficult for the hand to touch even when the knife 1 is in use.

[0018] The configuration of the handle 20 is arbitrary. For example, when the handle 20 is made of a separate member from the blade 10, any of the following types may be used: a main-through type in which the part of the tang extending from the gusset 15 that contacts the handle 21 has the same shape; a back-through type in which only the part of the tang that connects to the spine 13 is visible from the handle 21; or a burn-in / insertion type in which the tang is hidden from view. Also, the handle 20 may be of a type in which rivets (not shown) are visible from the side of the handle 21, a type in which the rivets are not visible, or a type in which there are no rivets. Furthermore, the handle 20 may be molded integrally with the blade 10 or the boundary 30.

[0019] The boundary portion 30 is a portion located at the boundary between the blade portion 10 and the handle portion 20. In the knife 1 of this embodiment, a ferrule is provided at the boundary portion 30, but there are also cases where nothing is provided. When a ferrule is provided at the boundary portion 30, it may be provided separately from the blade portion 10 and the handle portion 20, or it may be provided integrally with the blade portion 10. The ferrule is a place that is seldom touched by the hand when the knife 1 is in use. In particular, the position of the ferrule corresponding to the back portion 13 is a place that is difficult for the hand to touch.

[0020] The kitchen knife 1 is configured with such a structure. Then, a mark 40 indicating whether the kitchen knife 1 is single-edged or double-edged is provided on the kitchen knife 1. The mark 40 is an indication that enables one to distinguish whether the kitchen knife 1 is single-edged or double-edged, and is represented by a letter, a symbol, a number (quantity), a shape, or the like.

[0021] For example, in the case of characters, as shown in (1) of FIG. 2, a single-edged blade is represented as "kata" (single-edged blade) and a double-edged blade is represented as "ryo" (double-edged blade). In the case of numbers, as shown in (2) of FIG. 2, single-edged blades and double-edged blades are represented by different numbers of the same shape, such as one circle for a single-edged blade and two circles for a double-edged blade. In the case of shapes, a series of irregularities, a cross-sectional shape of the blade, a shape linked to the shape of the sharpener 100, etc., are represented. In the case of a series of irregularities, as shown in (3) of FIG. 2, for example, a single-edged blade is represented as a single-edged blade, and multiple irregularities are represented as a double-edged blade. In the case of the cross-sectional shape of the blade, as shown in (4) of FIG. 2, a single-edged blade is represented as a right triangle, and a double-edged blade is represented as an isosceles triangle. In the case of the shape of the sharpener 100, as shown in (5) of FIG. 2, a part of the sharpener 100 with a different shape for a single-edged blade and a double-edged blade can be extracted and used. 3(a) and (b), the sharpener 100 is available for single-edged and double-edged blades, and the shape seen from the side or the cross-sectional shape cut along the depth direction of the slit 101 into which the knife 1 is inserted is, for example, approximately rectangular for single-edged blades and approximately arc-shaped for double-edged blades. For this reason, the shape of the mark 40 can be linked to the shape of the sharpener 100 to set the shape of the mark 40 to a square if the knife 1 is single-edged and an arc-shaped or circular shape if the knife is double-edged.

[0022] The mark 40 may be provided anywhere on the knife 1, but if the contact area is a place that the user's hand touches or is likely to touch when using the knife 1, then it is preferable to provide the mark 40 at a location different from the contact area, that is, a location that the hand does not touch often or is difficult to touch. In this embodiment, the mark 40 is provided at a location corresponding to the back 13 of the boundary 30 surrounded by a dashed line in Fig. 1(b) as a location different from the contact area. Note that the location of the boundary 30 corresponding to the back 13 means the portion of the boundary 30 located on an extension of the back 13.

[0023] The mark 40 can be in various forms, and may be expressed as a concave-convex shape that protrudes or sinks into the surrounding wall surface, or may be expressed by application such as laser marking or printing. In addition, the mark 40 may be embedded in a color different from the surroundings while the surface of the mark 40 is flush with the surroundings of the mark 40, or may be integrally molded so that the mark 40 is exposed from the surface layer of the handle part 20 when the handle part 20 is formed by resin molding. In addition, in the case of such a structure, even if the user's hand touches the knife 1 when using it, there is no sense of incongruity like with a concave-convex shape, and the mark 40 does not wear off like a coating, so the mark 40 may be provided in the contact area where the user's hand touches.

[0024] [Effect of Knife 1] (1) The knife 1 of this embodiment is provided with a mark 40 indicating whether the knife is single-edged or double-edged. Therefore, the user can easily check whether the knife 1 being used is single-edged or double-edged based on the mark 40. Therefore, when sharpening the blade of the knife 1 with the sharpener 100, the user can easily recognize whether a single-edged or double-edged sharpener should be used, and the knife 1 can be sharpened with an appropriate sharpener 100. In addition, when purchasing a sharpener 100, the user can accurately select one that corresponds to the knife 1 being used.

[0025] (2) When the mark 40 has an uneven shape, providing the mark 40 in the contact area can be a hindrance, but providing the mark 40 in a location other than the contact area, such as the boundary portion 30, makes it difficult for the user's hand to touch the mark 40 when using the knife 1, and the mark 40 can be prevented from getting in the way. Also, when the mark 40 is applied, providing the mark 40 in the contact area can cause it to disappear due to wear, but providing the mark 40 in a location other than the contact area can prevent the mark 40 from disappearing.

[0026] (3) By using different shapes, letters, symbols, etc. for the mark 40 for a single-edged or double-edged knife, the user can easily distinguish whether the knife 1 is single-edged or double-edged.

[0027] In particular, when the mark 40 is configured as a protruding portion or a recessed portion, it is possible to tell whether the knife 1 is single-edged or double-edged by touching the mark 40. This makes it possible to distinguish between single-edged and double-edged knives without visual inspection, and even visually impaired people can easily distinguish the type of knife.

[0028] In this way, the knife1 can be made so that anyone can distinguish between single-edged and double-edged, which contributes to Goal 3 of the 17 Sustainable Development Goals (SDGs) adopted at the United Nations Summit, which is to "Ensure good health and well-being for all."

[0029] (Other embodiments) The present disclosure is not limited to the above-described embodiment, and can be modified as appropriate within the scope of the utility model registration claims. In addition, in the above-described embodiment, it goes without saying that the elements constituting the embodiment are not necessarily essential, except when they are specifically stated as essential or when they are obviously considered essential in principle. In addition, in the above-described embodiment, when referring to the shape, positional relationship, etc. of the components, etc., they are not limited to the shape, positional relationship, etc., except when they are specifically stated or when they are essentially limited to a specific shape, positional relationship, etc.

[0030] For example, in the above embodiment, the position of boundary 30 corresponding to back 13 is given as an example of a location different from the contact area. However, this is just one example, and mark 40 may be provided on handle butt 22, boundary 30, abdomen 12 or back 13 of blade 14, or on a rivet (not shown) as a location different from the contact area. Of course, mark 40 may be provided on the contact area, but in that case, it is preferable to make mark 40 an embedded structure rather than an uneven or painted structure so that mark 40 does not get in the way or wear away when knife 1 is used.

[0031] Also, it is possible to determine whether the knife 1 is for right-handed or left-handed use depending on the position of the mark 40. For example, if the mark 40 is located on the right side of the blade 10 or the handle 20 of the knife 1, it can be determined that the knife is for right-handed use, and if it is located on the left side, it can be determined that the knife is for left-handed use.

[0032] In addition, in the above embodiment, an example was given in which the boundary portion 30 is a ferrule, but the structure of the boundary portion 30 can be various, such as a structure in which the blade portion 10 and the handle portion 20 are separate and there is no ferrule, a structure in which the blade portion 10 and the handle portion 20 are integrated and there is no ferrule, a structure in which a ferrule is provided separately from the blade portion 10 or the handle portion 20, or a structure in which a ferrule is provided integrally with the blade portion 10. Any of these structures is acceptable. [Explanation of symbols]

[0033] 1...Knife, 10...Blade, 11...Cutting edge, 12...Belly, 13...Back, 14...Blade body, 14a...One side, 14b...Other side, 15...Gusset, 16...Edge, 16a...Cutting edge, 16b...Middle of blade, 16c...Jaw, 17...Scratch line, 20...Handle, 21...Patent, 22...Patent butt, 30...Border, 40...Mark, 100...Sharpener, 101...Slit

Claims

1. A blade portion (10) having a blade body (14) configured with a single edge or double edges; A handle portion (20) is fixed to the blade portion, A kitchen knife having a mark (40) on at least one of the blade portion and the handle portion, and the boundary portion (30) between the blade portion and the handle portion, which indicates whether the blade is configured as a single-edged blade or a double-edged blade.

2. The knife according to claim 1, wherein the areas of the blade and the handle that come into contact with the hand during use are defined as contact areas, and the markings are provided in locations different from the cutting edge of the blade and the contact areas of the blade and the handle.

3. The kitchen knife according to claim 1 , wherein the mark indicating the single-edged blade and the mark indicating the double-edged blade have different shapes.

4. The knife according to claim 3, wherein the mark is configured by a protruding convex portion or a recessed concave portion in the shape of the mark relative to the surrounding area of ​​the location on the blade portion or the handle portion where the mark is provided.

5. A ferrule is provided at the boundary between the handle portion and the blade portion, 5. The kitchen knife according to claim 1, wherein the mark is provided on the ferrule at a position corresponding to a back portion (13) of the blade body.

6. 5. The kitchen knife according to claim 1, wherein the mark is provided on a butt (22) of the handle portion, which is the end portion opposite the blade portion.

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