Cutter

Abstract

The utility model provides a cutter. The two sides, in the height direction, of the cutter are a blade point and a cutter back respectively, the cutter comprises a first cutting action area connected with the blade point, at least one surface, in the thickness direction of the cutter, of the first cutting action area is a convex arc surface, the first cutting action area has a first preset height H1, and H1 is larger than or equal to 0.3 mm and smaller than or equal to 0.5 mm. According to the cutter provided by the embodiment of the invention, the cutter has long lasting and sharp service life, and the user experience is good.

Description

Technical Field

[0001] The present application relates to the technical field of kitchenware, and in particular to a kitchen knife. Background Art

[0002] Knives play an indispensable role in the kitchen. With the progress of the times and the improvement of people's quality of life, people's meticulous requirements for knives are becoming more and more apparent, for example, the requirement for knives to remain sharp and have a long lifespan.

[0003] Among the existing cutting tools, those with higher sharpness are often prone to wear or edge curling, so their sharpness life is short, resulting in poor user experience of the cutting tools. Utility Model Content

[0004] The present application aims to at least solve the problem of poor knife usage experience generally caused by the long-lasting sharpness life of the knives existing in the above-mentioned prior art or related art.

[0005] To achieve the above-mentioned objectives, the first aspect embodiment of the present application provides a tool, wherein the tool has a blade tip and a blade back on both sides in the height direction, respectively, and the tool includes a first cutting action area connected to the blade tip, and the first cutting action area is formed as a convex arc surface on at least one surface in the thickness direction of the tool, and the first cutting action area has a first preset height H1, wherein 0.3mm≤H1≤0.5mm.

[0006] According to the tool provided in the embodiment of the present application, the first cutting action area connected to the blade tip and having a first preset height H1 and serving as a blade edge structure is formed as a convex arc surface. Thus, compared with a straight cutting surface, the blade edge structure constructed by the first cutting action area and the blade tip has higher strength, which can reduce the risk of blade wear or curling, thereby increasing the sharpness life and providing the tool with a good user experience.

[0007] In some embodiments, the arc radius of the convex arc surface is R1, wherein 0.5 mm≤R1≤3 mm.

[0008] In these embodiments, at least one surface in the thickness direction of the first cutting action zone is formed into a convex arc with a preset curvature, so that the sharpness and strength of the cutting edge structure of the tool can be better balanced to ensure the long-term sharpness life of the cutting edge structure.

[0009] In some embodiments, the thickness of the first cutting action area close to the upper edge of the blade back is W1, wherein 0.15 mm≤W1≤0.25 mm.

[0010] In these embodiments, the thickness of the upper edge of the first cutting action zone is within this range, which can make the cutting edge structure of the tool have higher sharpness and appropriate cutting edge strength, thereby further optimizing the long-lasting sharpness life of the tool.

[0011] In some embodiments, the convex arc surface includes a first convex arc surface and a second convex arc surface, which are respectively located on a first side and a second side opposite to each other in the thickness direction of the tool. The first convex arc surface and the second convex arc surface are respectively formed by splicing a plurality of arc segments with different arc radii, and there is a streamlined transition between adjacent arc segments. The arc radii of the first convex arc surface and the second convex arc surface are the same or different.

[0012] In these embodiments, the convex arc surface of the first cutting action area has a plurality of arc segments with different arc radii. Since the convex arc surface adopts a multi-arc segment design, the convex arc surface can disperse the impact force received by the tool during use, reduce the risk of blade damage, and improve the durability of the blade, thereby ensuring the long-lasting sharpness and life of the tool. In addition, different arc segment designs can adapt to different types of food and cutting requirements, making the various performances of the tool more excellent. In addition, the arc radii of the first convex arc surface and the second convex arc surface are the same or different. It can be understood that the tool will present a symmetrical or asymmetrical blade edge structure relative to the center line in the height direction. The two different designs of symmetrical and asymmetrical blade edge structures can improve the flexibility of manufacturing the tool and can adapt to different application scenarios and cutting requirements.

[0013] In some embodiments, in a direction from the blade tip to the blade back, the curvature of the first convex arc surface and the second convex arc surface gradually decreases.

[0014] In these embodiments, in the direction from the blade tip to the blade back, the curvature of the first convex arc surface and the second convex arc surface gradually decreases. In this case, the blade tip of the formed tool is relatively thin, while the other parts adjacent to the blade tip are relatively thick. The relatively thin blade tip will help to enhance the sharpness of the blade structure, while the relatively thick other parts can ensure the strength of the blade structure. In this case, the first cutting action area according to the present application can effectively balance the sharpness and strength, thereby extending the long-term sharp life of the tool.

[0015] In some embodiments, the tool also includes a second cutting action area extending from the first cutting action area toward the back of the knife, and the second cutting action area is formed as a convex arc surface in the thickness direction of the tool. The first cutting action area is connected to the second cutting action area and transitions smoothly.

[0016] In these embodiments, the second cutting action area connected to the first cutting action area is provided. On the one hand, the second cutting action area is formed into a convex arc surface, which can improve the controllability during the cutting process of food, and can make the overall height of the knife suitable to prevent the blade from being deformed or broken when subjected to a large impact or pressure, thereby improving the durability and service life of the knife. On the other hand, as a part of the connection portion connecting the blade tip and the handle, when cutting food, the user does not need to touch the blade tip, but only needs to apply force through the handle, and then this force can be transmitted to the blade edge through the blade body, so that the knife can be safely controlled to achieve the purpose of cutting.

[0017] In some embodiments, the height of the upper edge of the second cutting action area toward the back of the blade relative to the blade tip is a second preset height H2, wherein 10mm≤H2≤15mm, and the convex arc surface includes a third convex arc surface and a fourth convex arc surface, which are respectively located on the first side and the second side in the thickness direction of the tool, and the arc radius of the third convex arc surface and the fourth convex arc surface is R2, wherein 3mm≤R2≤10mm, and the arc radius of the third convex arc surface and the fourth convex arc surface are the same or different.

[0018] In these embodiments, the second cutting action area connected to the first cutting action area and having a second preset height H2 relative to the blade tip is formed as a convex arc surface with an arc radius of R2. The second cutting action area is formed as a convex arc surface, which can improve the controllability during the cutting of food. For example, when slicing food, the projection area of ​​such a convex arc surface is small. The small projection area means that the contact area between the knife and the cut food is relatively small. When the contact area with the cut food is relatively small, the pressure (i.e., the pressure per unit area) acting on the cut object will increase, so the knife can more easily penetrate the cut food, thereby reducing the cutting resistance, making cutting easier and smoother, improving cutting efficiency, and further optimizing the use experience of the knife.

[0019] In some embodiments, the thickness of the second cutting action area close to the upper edge of the blade back is W2, wherein 0.5 mm≤W2≤1 mm.

[0020] In these embodiments, if the thickness of the second cutting action zone near the upper edge of the blade back is too thin, the overall strength of the cutting edge portion will be insufficient. If the thickness of the second cutting action zone near the upper edge of the blade back is too thick, when the first cutting action zone is connected to the second cutting action zone and transitions smoothly, the angle of the blade tip will inevitably be too large, resulting in poor sharpness and controllability.

[0021] In some embodiments, the third convex arc surface and the fourth convex arc surface are respectively formed by splicing a plurality of arc segments with different arc radii, and there is a streamlined transition between adjacent arc segments. From the tip of the blade to the back of the blade, the curvature of the third convex arc surface and the fourth convex arc surface gradually decreases.

[0022] In these embodiments, the convex arc surface of the second cutting action area has multiple arc segments with different arc radii, that is, the convex arc surface is not a simple curve, but a multi-arc design. Since the convex arc surface adopts a multi-arc design, the impact force received by the tool can be dispersed when it is used, ensuring the strength and durability of the tool. In addition, from the tip to the back of the blade, the curvature of the third convex arc surface and the fourth convex arc surface gradually decreases, so that the properties of the tool strength, cutting resistance and weight can be balanced, ensuring the overall excellent properties of the tool.

[0023] In some embodiments, the included angle at the tip of the tool is 30°-45°.

[0024] In these embodiments, when slicing food, there is a larger operating space and better controllability. For example, cutting can be performed at any inclined angle, further optimizing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and other objects and features of the present application will become more apparent through the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0026] Figure 1 A schematic diagram of the structure of a tool provided according to an embodiment of the present application is shown;

[0027] Figure 2 Shown along Figure 1 A schematic diagram of a partial cross-sectional structure cut along the AA line in FIG.

[0028] Figure 3 Shown along Figure 1 Schematic diagram of the partial cross-sectional structure taken along line BB in FIG.

[0029] Explanation of symbols

[0030] 10. Blade tip; 20. First cutting action area; 30. Second cutting action area;

[0031] 41. a first convex arcuate surface; 42. a second convex arcuate surface;

[0032] 51. third convex arc surface; 52. fourth convex arc surface; 60. blade back. DETAILED DESCRIPTION

[0033] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be clear. For example, the order of operations described herein is only an example and is not limited to those orders set forth herein, but can be changed as will be clear after understanding the disclosure of the present application, except for operations that must occur in a specific order. In addition, for greater clarity and simplicity, the description of features known in the art may be omitted.

[0034] The features described herein can be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided to illustrate only some of the many possible ways to implement the methods, devices, and / or systems described herein, which will be clear after understanding the disclosure of the present application.

[0035] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more.

[0036] Although terms such as "first", "second", and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions should not be limited by these terms. Instead, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, first component, first region, first layer, or first portion referred to in the examples may also be referred to as the second member, second component, second region, second layer, or second portion.

[0037] In the specification, when an element such as a layer, a region or a substrate is described as being "on", "connected to" or "mounted to" another element, the element may be directly "on", "connected to" or "mounted to" another element, or one or more other elements may be present therebetween. Conversely, when an element is described as being "directly on", "directly connected to" or "directly mounted to" another element, there may be no other elements therebetween.

[0038] The terms used herein are only used to describe various examples and are not intended to limit the disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "comprise", "include" and "have" indicate the presence of the described features, quantities, operations, components, elements and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements and / or combinations thereof. The term "plurality" represents two and any number greater than two.

[0039] The definitions of directional terms such as "upper", "lower", "top", "bottom", "height direction", etc. in this application are all based on the orientation of the product when it is in normal use and held upright.

[0040] Unless otherwise defined, all terms used herein, including technical terms and scientific terms, have the same meanings as those generally understood by ordinary technicians in the field to which the present invention belongs after understanding the present invention. Unless explicitly defined as such herein, terms such as those defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant field and the present invention, and should not be interpreted in an idealized or overly formal way.

[0041] Furthermore, in the description of the examples, when it is deemed that a detailed description of well-known related components or functions will cause vague interpretation of the present invention, such detailed description will be omitted.

[0042] The following will be combined Figures 1 to 3 Hereinafter, a cutting tool provided in an embodiment of the present application will be introduced.

[0043] According to an embodiment of the present application, a knife is provided, specifically a kitchen knife, wherein, Figure 1 and Figure 2 As shown, the two sides of the knife in the height direction are respectively a blade tip 10 and a blade back 60, and the knife includes a first cutting action area 20 connected to the blade tip 10. The first cutting action area is the main cutting part of the knife, which can also be called the edge area or edge portion of the knife, and is the part that first contacts the food and cuts the food. The food can be cut, sliced, etc. through the first cutting action area.

[0044] like Figure 1 As shown, the first cutting action area 20 may be an area on the tool corresponding to the blade tip 10 and BB'. As an example, the first cutting action area 20 has a first preset height H1, wherein 0.3 mm ≤ H1 ≤ 0.5 mm.

[0045] According to the tool provided in the embodiment of the present application, the first cutting action area 20 connected to the blade tip 10 and having a first preset height H1 (0.3mm≤H1≤0.5mm) and serving as a blade edge structure is formed as a convex arc surface. In this way, compared with a straight cutting surface, the blade edge structure constructed by the first cutting action area 20 and the blade tip 10 has higher strength, which can reduce the risk of blade wear or curling, thereby increasing the long-lasting sharpness life, so that the tool has a good user experience.

[0046] According to the tool provided in the embodiment of the present application, at least one surface of the first cutting action area 20 in the thickness direction of the tool is formed as a convex arc surface, and the arc radius of the convex arc surface is R1, wherein 0.5mm≤R1≤3mm.

[0047] It should be noted that when one surface in the thickness direction is a convex arc surface, the other surface may be an inclined surface or an inner concave surface. The convex arc surface, the inclined surface or the inner concave surface may be regarded as an extended shape of the cross section of the tool in the height direction.

[0048] In these embodiments, at least one surface in the thickness direction of the first cutting action zone 20 is formed into a convex arc with a preset curvature, so that the sharpness and strength of the cutting edge structure of the tool can be better balanced to ensure the long-term sharpness life of the cutting edge structure.

[0049] See also Figure 1 , Figure 1 The X direction shown is the length direction of the tool, the Y direction shown, which is perpendicular to the X direction and in the same plane as the X direction, is the height direction of the tool, and the Z direction shown, which is perpendicular to the plane formed by XY, is the thickness direction of the tool. The tool also includes a handle, which is formed on a side wall in the length direction of the tool, so that the user can hold and operate the tool easily.

[0050] According to the present application, the convex arc surface includes two surfaces in the thickness direction of the tool. In some embodiments, the convex arc surface includes a first convex arc surface 41 and a second convex arc surface 42, which are respectively located on the first side and the second side opposite to the thickness direction of the tool. It can be understood that the cutting edge structure of the tool is formed as a structure with a double convex arc surface. When the material of the tool is consistent, the structure of the double convex arc surface can better balance the strength and sharpness of the tool. Therefore, according to the present application, a relatively enhanced cutting edge structure can be obtained, which can reduce the risk of wear or curling of the cutting edge, thereby significantly extending the long-lasting sharp life of the tool.

[0051] Specifically, the arc radius of the first convex arc surface 41 and the second convex arc surface 42 are the same or different. If the arc radius of the first convex arc surface 41 and the second convex arc surface 42 are the same, then the tool will present a symmetrical edge structure relative to the center line in the height direction. The tool with a symmetrical edge structure is conducive to uniform weight distribution when holding, and the operation is more stable, which can reduce the risk of accidental injury caused by improper operation. At the same time, the tool with a symmetrical edge structure can be applied to a variety of cutting tasks, such as slicing, shredding, dicing, etc., avoiding the trouble of frequently changing different types of tools. If the arc radius of the first convex arc surface 41 and the second convex arc surface 42 is different, then the tool will have an asymmetrical edge structure relative to the center line in the height direction (cutting center line). It can be understood that one side of the center line in the height direction of the tool is thinner and the other side is thicker. When cutting a sheet, the thinner side can be made to face the food to be cut, which makes it easier for the tool to penetrate the food when cutting, reducing the resistance to cutting. At the same time, such a blade structure can facilitate bevel cutting and the operation of "slicing ingredients", providing users with a better cutting experience.

[0052] According to the present application, the two different designs of cutting edge structures, symmetrical and asymmetrical, can enhance the flexibility of manufacturing cutting tools and can adapt to different application scenarios and cutting requirements. The present application does not impose too many restrictions on this, and technical personnel in this field can make specific settings based on actual cutting tasks and scenarios.

[0053] In some embodiments, the first cutting action area 20 has a first preset height H1, wherein 0.3 mm ≤ H1 ≤ 0.5 mm. When H1 is less than 0.3 mm, the manufacturing process is more difficult. When H1 is greater than 0.5 mm, the improvement in the sharpness life is not obvious.

[0054] In some embodiments, in the first cutting action area 20, the arc radius of the first convex arc surface 41 and the second convex arc surface 42 can be R1, wherein 0.5mm≤R1≤3mm. When R1 is less than 0.5mm, the convex amount of the first cutting action area 20 is too large, which will greatly affect the cutting resistance of the tool. When R1 is greater than 3mm, the convex amount of the first cutting action area 20 is too small, and the material forming the first cutting action area 20 (tool edge structure) is less, the tool strength is insufficient, and it is easy to wear or curl, and the improvement of the long-lasting sharpness life is not obvious.

[0055] When the tool material is the same, the sharpness of the tool is closely related to the thickness of its cutting zone. Although a thinner cutting zone has less cutting resistance and higher sharpness, it will greatly affect the strength of the cutting edge. Although a thicker cutting zone has better strength, it will greatly affect the sharpness of the cutting edge.

[0056] According to the present application, the upper edge of the first cutting action area 20 has a preset thickness, so that the sharpness and durability can be better balanced, ensuring that the first cutting action area 20 has sufficient strength to resist the impact force during the cutting process, while having good sharpness, thereby further improving the long-term sharpness life of the tool. As an example, the thickness of the upper edge of the first cutting action area 20 close to the blade back 60 is W1, where 0.15mm≤W1≤0.25mm. The thickness of the upper edge of the first cutting action area 20 is within this range, which can make the edge structure of the tool have a higher sharpness and have a suitable edge strength, thereby further optimizing the long-term sharpness life of the tool.

[0057] In some embodiments, the first convex arc surface 41 and the second convex arc surface 42 are respectively formed by splicing a plurality of arc segments with different arc radii, and there is a streamlined transition between adjacent arc segments.

[0058] In these embodiments, the convex arc surface (first convex arc surface 41 and second convex arc surface 42) of the first cutting action area 20 (the blade portion of the tool) has multiple arc segments with different arc radii, that is, the convex arc surface is not a simple curve, but a multi-arc design. Since the convex arc surface adopts a multi-arc design, the convex arc surface can disperse the impact force received by the tool during use, reduce the risk of blade damage, and improve the durability of the blade, thereby ensuring the long-lasting sharpness and life of the tool. In addition, different arc segment designs can adapt to different types of food and cutting requirements, making the various performances of the tool more excellent. For example, an overall smaller curvature of the blade can cut softer food, such as vegetables, and an overall larger curvature of the blade is more suitable for cutting hard food, such as frozen meat products, potatoes, yams, etc.

[0059] In some embodiments, in a direction from the blade tip 10 to the blade back 60 , the curvature of the first convex arc surface 41 and the second convex arc surface 42 gradually decreases.

[0060] In these embodiments, in the direction from the blade tip 10 to the blade back 60, the curvature of the first convex arc surface 41 and the second convex arc surface 42 gradually decreases. In this case, the blade tip of the formed tool is relatively thin, while the other parts adjacent to the blade tip are relatively thick. The relatively thin blade tip will help to enhance the sharpness of the blade structure, while the relatively thick other parts can ensure the strength of the blade structure. In this case, the first cutting action area 20 according to the present application can effectively balance the sharpness and strength, thereby extending the long-lasting sharp life of the tool.

[0061] In some embodiments, Figures 1 to 3As shown, the tool also includes a second cutting action area 30 extending from the first cutting action area 20 toward the blade back 60, and the first cutting action area 20 is connected to the second cutting action area 30 and smoothly transitions. Continuing with the above example, the second cutting action area 30 can also be referred to as a portion of the blade body area of ​​the tool that is connected to or close to the cutting edge area or cutting edge portion. Specifically, the second cutting action area 30 can be an area on the corresponding tool between BB' and CC'.

[0062] In these embodiments, the second cutting action area 30 connected to the first cutting action area 20 and having a second preset height H2 (10mm≤H2≤15mm) relative to the blade tip 10 can, on the one hand, make the overall height of the knife suitable to prevent the blade from being deformed or broken when subjected to a large impact or pressure, thereby improving the durability and service life of the knife. On the other hand, as a part of the connection portion connecting the blade tip 10 and the handle, when cutting food, the user does not need to touch the blade tip 10, but only needs to apply force through the handle, and then this force can be transmitted to the cutting edge through the blade body, so that the knife can be safely controlled to achieve the purpose of cutting.

[0063] In some embodiments, the height of the upper edge of the second cutting action area 30 facing the back of the knife 60 relative to the blade tip 10 is a second preset height H2, wherein 10mm≤H2≤15mm, and the second cutting action area 30 is formed as a convex arc surface. Specifically, both sides of the thickness direction of the second cutting action area 30 can be formed as convex arc surfaces, namely, a third convex arc surface 51 and a fourth convex arc surface 52, respectively, which are located on the first side and the second side of the thickness direction of the knife. It can be understood that the second cutting action area 30 of the knife is formed as a double convex arc surface structure in the thickness direction, and the arc radius of the third convex arc surface 51 and the fourth convex arc surface 52 is R2, wherein 3mm≤R2≤10mm. When R2 is less than 3mm, the convex amount is large, the cutting resistance is large, and it is not conducive to slicing the food. When R2 is greater than 10mm, the processing cost is high.

[0064] It should be noted that the arc radius (R1, R2) according to the present application is the ratio of the sum of the arc radii of the arc line segments corresponding to the convex arc surface to the total number.

[0065] In these embodiments, the second cutting action area 30 connected to the first cutting action area 20 and having a second preset height H2 (10mm≤H2≤15mm) relative to the blade tip 10 is formed as a convex arc surface with an arc radius of R2 (3mm≤R2≤10mm). The second cutting action area 30 is formed as a convex arc surface, which can improve the controllability during the cutting of food. For example, when slicing food, the projection area of ​​such a convex arc surface is small. The small projection area means that the contact area between the knife and the cut food is relatively small. When the contact area with the cut food is relatively small, the pressure acting on the cut object (i.e., the pressure per unit area) will increase, so the knife can more easily penetrate the cut food, thereby reducing the cutting resistance, making cutting easier and smoother, improving cutting efficiency, and further optimizing the use experience of the knife.

[0066] As an example, the convex arc surface of the second cutting action area 30 is less curved than the convex arc surface of the first cutting action area 20, so that the properties of the tool in various aspects such as strength, sharpness and weight can be balanced to ensure the overall excellent properties of the tool.

[0067] In some embodiments, the arc radii of the third convex arc surface 51 and the fourth convex arc surface 52 are the same or different.

[0068] In these embodiments, the symmetrical or asymmetrical structural design enables the structure of the tool to be manufactured according to actual needs. For example, the weight of each part of the tool can be distributed according to the holding habit. At the same time, the symmetrical or asymmetrical structural design can increase the manufacturing flexibility and can adapt to different application scenarios and cutting requirements.

[0069] In some embodiments, in a direction from the blade tip 10 to the blade back 60 , the curvature of the third convex arc surface 51 and the fourth convex arc surface 52 gradually decreases.

[0070] In these embodiments, the properties of the tool in various aspects, such as strength, cutting resistance, and weight, can be balanced to ensure that the overall properties of the tool are excellent.

[0071] According to the present application, the first cutting action area 20 is connected and smoothly transitioned to the second cutting action area 30. In some embodiments, the thickness of the second cutting action area 30 near the upper edge of the blade back 60 is W2, wherein 0.5 mm ≤ W2 ≤ 1 mm.

[0072] In these embodiments, if the thickness of the second cutting action area 30 near the upper edge of the blade back 60 is too thin, the overall strength of the cutting edge portion will be insufficient. If the thickness of the second cutting action area 30 near the upper edge of the blade back 60 is too thick, when the first cutting action area 20 and the second cutting action area 30 are connected and smoothly transitioned, it will inevitably cause the angle of the blade tip to be too large, resulting in poor sharpness and controllability.

[0073] In some embodiments, the third convex arc surface 51 and the fourth convex arc surface 52 are respectively formed by splicing a plurality of arc segments with different arc radii, and there is a streamlined transition between adjacent arc segments.

[0074] In these embodiments, the convex arc surface of the second cutting action area 30 (the third convex arc surface 51 and the fourth convex arc surface 52) has multiple arc segments with different arc radii. That is to say, the convex arc surface is not a simple curve, but adopts a multi-arc segment design. Since the convex arc surface adopts a multi-arc segment design, the impact force received by the tool during use can be dispersed, thereby ensuring the strength and durability of the tool.

[0075] The controllability of the tool can further optimize the user experience, and the controllability depends largely on the angle at the tool tip (for example, the tool wrap angle).

[0076] According to the present application, the angle θ at the cutting edge 10 of the tool is 30°-45°. Further, the angle θ at the cutting edge 10 of the tool is 35°-°, 30°-° or 35°-45°. Continuing with the above example, the angle at the cutting edge 10 of the tool can be understood as the angle formed by the first convex arc surface 41 and the second convex arc surface 42 at the cutting edge 10.

[0077] The knife according to the present application has a larger operating space and better controllability when slicing food. For example, it can cut at any inclined angle, which can further optimize the user experience.

[0078] Although the embodiments of the present application have been described in detail above, those skilled in the art may make various modifications and variations to the embodiments of the present application without departing from the spirit and scope of the present application. However, it should be understood that, in the opinion of those skilled in the art, these modifications and variations will still fall within the spirit and scope of the embodiments of the present application defined by the claims.

Claims

1. A cutting tool, characterized in that: The tool comprises a blade tip (10) and a blade back (60) on both sides in a height direction, and the tool comprises a first cutting action area (20) connected to the blade tip (10), and at least one surface of the first cutting action area (20) in a thickness direction of the tool is formed as a convex arc surface, and the first cutting action area (20) has a first preset height H1, wherein 0.3 mm ≤ H1 ≤ 0.5 mm.

2. The tool according to claim 1, characterized in that The arc radius of the convex arc surface is R1, wherein 0.5 mm ≤ R1 ≤ 3 mm.

3. The tool according to claim 1, characterized in that The thickness of the first cutting action area (20) close to the upper edge of the blade back (60) is W1, wherein 0.15 mm≤W1≤0.25 mm.

4. The tool according to claim 2, characterized in that The convex arc surface comprises a first convex arc surface (41) and a second convex arc surface (42), wherein the first convex arc surface (41) and the second convex arc surface (42) are respectively located on a first side and a second side opposite to each other in the thickness direction of the tool, and are respectively formed by splicing a plurality of arc segments with different arc radii, and adjacent arc segments have a streamlined transition.

5. The tool according to claim 4, characterized in that In the direction from the blade tip (10) to the blade back (60), the curvature of the first convex arc surface (41) and the second convex arc surface (42) gradually decreases.

6. The tool according to claim 1, characterized in that The tool further comprises a second cutting action area (30) extending from the first cutting action area (20) toward the blade back (60); the second cutting action area (30) is formed as a convex arc surface in the thickness direction of the tool; the first cutting action area (20) is connected to the second cutting action area (30) and transitions smoothly.

7. The tool according to claim 6, characterized in that The height of the upper edge of the second cutting action area (30) toward the blade back (60) relative to the blade tip (10) is a second preset height H2, wherein 10mm≤H2≤15mm, and the convex arc surface includes a third convex arc surface (51) and a fourth convex arc surface (52), and the third convex arc surface (51) and the fourth convex arc surface (52) are respectively located on the first side and the second side of the thickness direction of the tool, and the arc radius of the third convex arc surface (51) and the fourth convex arc surface (52) is R2, wherein 3mm≤R2≤10mm.

8. The tool according to claim 7, characterized in that The thickness of the second cutting action area (30) close to the upper edge of the blade back (60) is W2, wherein 0.5 mm ≤ W2 ≤ 1 mm.

9. The tool according to claim 7, characterized in that The third convex arc surface (51) and the fourth convex arc surface (52) are respectively formed by splicing a plurality of arc segments with different arc radii, and there is a streamlined transition between adjacent arc segments. In the direction from the blade tip (10) to the blade back (60), the curvature of the third convex arc surface (51) and the fourth convex arc surface (52) gradually decreases.

10. The tool according to any one of claims 1 to 9, characterized in that The included angle at the blade tip (10) of the tool is 30°-45°.

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