bladed weapons

Abstract

To provide a cutting tool that makes cutting and processing easy, even for those unfamiliar with its handling. [Solution] The cutting tool 100 comprises a blade 105 with a cutting edge 107 formed on its edge, and a handle 101 provided at the base end of the blade 105. The tool is configured so that the cutting edge 107 can cut the object to be cut by the operator gripping the handle 101 and operating it. The handle 101 is designed to be able to swing up and down by elastically deforming at least a portion of it when a predetermined pressing force is applied.

Description

Technical Field

[0004] , ,

[0005] , ,

[0001] The present invention relates to a cutting tool.

Background Art

[0002] Conventional cutting tools represented by kitchen knives for cutting foodstuffs and the like are known, for example, as shown in FIG. 6, in which a handle 1001 attached to the proximal end of a blade body 1005 extends in the longitudinal direction of the blade body 1005, and a cutting edge 1007 formed at the lower edge of the blade body 1005 can cut an object to be cut such as a foodstuff. In such a cutting tool, it is common for the handle to be formed of a hard material such as wood or metal (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] This invention has been made in view of the above-mentioned problems, and aims to provide a cutting tool that can be easily used even by those unfamiliar with handling it. [Means for solving the problem]

[0007] To solve the above objective, the invention described in claim 1 is a cutting tool comprising a blade with a cutting edge formed on its edge and a handle provided at the base end of the blade, wherein the operator can cut an object to be cut by gripping and operating the handle, The handle is characterized in that, when a predetermined pressing force is applied, at least a portion of it elastically deforms, allowing it to swing in the vertical direction.

[0008] The invention described in claim 2 is a cutting tool described in claim 1, The handle is characterized by being curved upward and being formed such that at least the tip is located in front of the base.

[0009] The invention described in claim 3 is a cutting tool described in claim 2, The aforementioned handle has a grip portion for the user to hold, The handle is characterized in that at least a portion of the gripping portion is positioned above the blade.

[0010] The invention described in claim 4 is a cutting tool described in claim 1, The aforementioned handle is characterized by being equipped with a restricting means for restricting the range of motion due to elastic deformation.

[0011] The invention described in claim 5 is a cutting tool described in claim 4, The aforementioned handle has a movable part that allows the handle to move by making a part of the handle thinner and elastically deforming it. The regulating means is characterized by having a contact portion that contacts the handle at a position where the handle has been displaced by a predetermined amount by the movable portion, thereby restricting the range of motion of the handle.

[0012] The invention according to claim 6 is a cutting tool according to any one of claims 1 to 5, wherein the handle is formed of a resin that can be elastically deformed.

[0013] The invention according to claim 7 is a cutting tool according to any one of claims 1 to 5, wherein the cutting edge is formed to form an arc.

Advantages of the Invention

[0014] According to the present invention, it is possible to provide a cutting tool that can facilitate cutting even for those who are not used to handling it.

Brief Description of the Drawings

[0015] [Figure 1] It is a side view showing the appearance of the kitchen knife according to the present embodiment. [Figure 2] It is a diagram for explaining the operation of the kitchen knife according to the present embodiment. [Figure 3] (A) is a diagram showing the kitchen knife according to the second embodiment, and (B) is a diagram showing the kitchen knife according to the third embodiment. [Figure 4] (A) is a diagram showing the kitchen knife according to the fourth embodiment, and (B) is a diagram showing the kitchen knife according to the fifth embodiment. [Figure 5] (A) is a diagram showing the kitchen knife according to the sixth embodiment, and (B) is a diagram showing the kitchen knife according to the seventh embodiment. [Figure 6] It is a diagram for explaining a conventional kitchen knife. [Figure 7] It is a side view showing the appearance of the kitchen knife according to the eighth embodiment.

Modes for Carrying Out the Invention

[0016] Hereinafter, a cutting tool (for example, a kitchen knife) according to an embodiment of the present invention will be described with reference to the drawings. However, the scope of the invention is not limited to the illustrated examples.

[0017] First, while referring to FIG. 1, the configuration of a kitchen knife 100 as an example of a cutting tool applicable to the present invention will be described.

[0018] As shown in FIG. 1(A), the kitchen knife 100 includes, for example, a blade 105 and a handle 101. The blade 105 is made of, for example, forged metal, and a cutting edge 107 is formed at the lower end edge. The cutting edge 107 is formed in an arc shape from the cutting tip to the blade base, and for example, facilitates the cutting of an object to be cut such as food. Further, a bolster 106 is provided at the base of the blade 105 and is integrally formed with the blade 105. The kitchen knife 100 is configured by attaching this bolster 106 to the handle 101. Any known attachment mode of the bolster 106 and the handle 101 can be applied. In the present embodiment, the handle 101 has a fixing portion at the base thereof through which the square thin plate-shaped bolster 106 can be inserted. By sandwiching the bolster 106 with this fixing portion and co-fastening appropriate portions with rivets 104, the blade 105 can be fixed to the handle 101. In the present embodiment, the portion where the bolster 106 is fixed to the fixing portion may be referred to as a collar portion 103.

[0019] The handle 101 is made of, for example, resin. In the present embodiment, it is made of, for example, polyethylene. The resin to be used is not limited to polyethylene, and other resins such as polypropylene and polycarbonate may be used. Also, as long as at least a part thereof is made of a material that can be elastically deformed, a material other than resin may be applied, and a material such as metal may be used. Further, the material applicable to the handle 101 is not limited to one type, and it may be composed of a combination of two or more types of materials. In the present embodiment, the blade 105 and the handle 101 are configured as separate members and the blade 105 is fixed to the handle 101 with a rivet 104, but the blade and the handle may be made of the same material and integrally formed. This also applies to the following embodiments.

[0020] The handle 101 is formed to curve upward from the rear end of the guard portion 103 and further curve toward the longitudinal direction of the blade 105. In other words, the handle 101 is formed in a roughly U-shape. As a result, the tip of the handle 101 is positioned forward of the base. In this embodiment, the tip of the handle 101 is configured to be positioned above the blade 105. Also in this embodiment, the tip portion of the handle 101 curves downward. The handle 101 has a grip portion 108 formed slightly behind the tip for the user to hold. At least a part of this grip portion 108 is formed to be positioned above the blade 105. This improves the operability of the kitchen knife 100. Furthermore, the handle 101 is formed by splitting into two at the rear end of the flange portion 103. One portion constitutes the main body of the handle 101, and its base is hollowed out in an arc shape to make it thin and flexible, serving as a movable portion 109 for swinging the handle 101 up and down. The other portion has a stopper 110 formed in a shape that matches the hollowed-out portion of the main body of the handle 101, and a gap 102 is formed between the movable portion 109 and the stopper 110.

[0021] As described above, the knife 100 according to this embodiment is configured such that when the user grips the handle portion 108 and pushes it downward, the movable portion 109 becomes flexible (elastically deformed), and the main body of the handle 101 swings downward with the rear end of the collar portion 103 as the pivot point. As a result, the handle 101 is displaced in a substantially circular arc, as shown by arrow R1 in Figure 1(A). Subsequently, as shown in Figure 1(B), the displacement of the handle 101 is restricted when the movable portion 109 comes into contact with the stopper 110. In other words, in this embodiment, the stopper 110 functions as the contact point. In this way, a downward pressing force can be applied to the blade edge 107. When the pressing force applied by the user is released, the elastic deformation of the movable portion 109 is restored, and the handle 101 returns to its original position, as shown in Figure 1(A).

[0022] The operation of the knife 100 configured as described above will be explained with reference to Figure 2.

[0023] When using the knife 100 according to this embodiment to cut food, for example, the user grips the handle 101 at the grip portion 108. In this state, the user places the blade tip 107 against the food and presses the handle 101 downwards. The movable part 109 flexes, causing the handle 101 to displace in a roughly arc shape. This causes the blade tip 107 to press against the food. In this embodiment, due to the elastic deformation of the movable part 109, even if the user is not accustomed to handling the knife and applies excessive pressure to the handle 101, the pressure is buffered by the action of the movable part 109. As a result, the pressure applied by the blade tip 107 against the food is reduced, which can reduce the inconvenience of the food being crushed and resulting in a poor finish after cutting. In other words, when food is pressed by the blade tip 107, the food is subjected to both the pressing force from the blade tip 107 and tensile stress pulling it in the left-right direction. If a large pressing force is applied before sufficient tensile stress is generated to cut the food, the food will be crushed instead of cut. However, with the knife 100 according to this embodiment, even if excessive pressing force is applied to the handle 101 by the user, the movable part 109 reduces this excessive pressing force and transmits it to the blade tip 107, thereby reducing the likelihood of the food being crushed. Furthermore, the reaction force of the restoring force of the elastic deformation by the movable part 109 ensures that a constant pressing force is continuously applied to the food by the blade tip 107.

[0024] Furthermore, with conventional knives, the pressure applied by the user is directly transmitted to the blade. For example, when the blade strikes a hard surface such as a cutting board, the impact is directly transmitted to the user, resulting in fatigue. With the knife 100 according to this embodiment, for example, the impact when the blade 107 strikes the surface of a cutting board is cushioned by the movable part 109, thus reducing fatigue for the user. In addition, with the knife 100 according to this embodiment, the pressure applied by the user is reduced by the movable part 109, which suppresses the lateral movement of the blade 107 relative to the food. Moreover, the impact on the blade 107 during cutting is reduced, thus reducing the load on the blade 107, minimizing wear and damage, and improving the longevity of the sharpness. This allows for a longer product life, for example, by reducing the number of times the knife 100 needs to be sharpened.

[0025] Furthermore, while knives are generally used to effectively cut food by pressing the blade against the food and utilizing the friction generated by sliding it back and forth, conventional knives require a certain level of skill to handle because they require both pressing and back and forth movement. As a result, inexperienced users may apply excessive force to the blade, making it difficult to slide it straight (the blade may wobble from side to side), and thus making it difficult to cut food cleanly. In contrast, with the knife 100 of this embodiment, since the handle 101 is displaced in a roughly arc shape, the blade 105 also moves in an arc shape, allowing the blade 107 to slide smoothly back and forth. This makes it easier for even inexperienced users to effectively cut food, thus improving operability.

[0026] Next, with reference to Figures 3 to 5 and Figure 7, another embodiment of a kitchen knife applicable to the present invention will be described.

[0027] As shown in Figure 3(A), the knife 200 according to the second embodiment comprises a handle 201, a gap 202, a guard portion 203, a rivet 204, a blade 205, a tang 206, a cutting edge 207, a grip portion 208, a movable portion 209, and a stopper 210.

[0028] In the second embodiment of the knife 200, the guard portion 103 is formed in a roughly semi-circular shape, and the handle 201 extends downward from the lower edge of the guard portion 103 on the blade 205 side, then curves upward to surround the guard portion 203, and is positioned so that its tip is above the blade 205. In other words, the handle 201 of the second embodiment is formed in a roughly "no" shape. A movable portion 209 for displacing the handle 201 is formed at the base of the handle 201, and by the elastic deformation of this movable portion 209, the handle 201 can be displaced vertically along roughly the trajectory of arrow R2. When the user grips the handle 201 by the grip portion 208 and presses the handle 201, the movable portion 209 in particular elastically deforms and the handle 201 is displaced. Subsequently, when the movable portion 209 comes into contact with the lower edge of the stopper 210, the displacement of the handle 201 is restricted. In the second embodiment of the knife 200, the grip portion 208 is positioned behind the blade 205. This configuration also makes it easier to cut food ingredients and other materials.

[0029] As shown in Figure 3(B), the knife 300 according to the third embodiment comprises a handle 301, a gap 302, a guard portion 303, a rivet 304, a blade 305, a tang 306, a cutting edge 307, a grip portion 308, a movable portion 309, and a stopper 310. In the knife 300 according to the third embodiment, the handle 301 extends further forward than the handle 201 according to the second embodiment, and the grip portion 308 is positioned above the blade 305. The operation of the handle 301 of the knife 300 according to the third embodiment is the same as that of the knife 200 according to the second embodiment, and the handle 301 is displaceable in the vertical direction substantially along the trajectory of arrow R3. Because the knife 300 according to the third embodiment has the above configuration, it is easier for the user to press the handle 301 downward, and the operability is further improved.

[0030] As shown in Figure 4(A), the kitchen knife 400 according to the fourth embodiment comprises a handle 401, a gap 402, a collar portion 403, rivets 404, a blade 405, a tang 406, a cutting edge 407, a grip portion 408, a movable portion 409, and a stopper 410. The kitchen knife 400 according to the fourth embodiment differs from the kitchen knife 300 according to the third embodiment in the arrangement of the rivets 404 on the collar portion 403.

[0031] As shown in Figure 4(B), the kitchen knife 500 according to the fifth embodiment comprises a handle 501, a collar portion 503, a rivet 504, a blade 505, a tang 506, a cutting edge 507, and a grip portion 508, while lacking movable parts and stoppers, and also lacking any gaps formed by these components. In the kitchen knife 500 according to the fifth embodiment, the inner circumference base end of the handle 501 is hollowed out in an arc shape from the collar portion 503 to the main body, forming a gap 511, which allows the handle 501 to be displaced vertically along approximately the trajectory of arrow R5.

[0032] As shown in Figure 5(A), the knife 600 according to the sixth embodiment comprises a handle 601, a collar 603, rivets 604, a blade 605, a tang 606, a cutting edge 607, and a grip 608, while lacking movable parts and stoppers, and also lacking any gaps formed by these components. In the knife 600 according to the sixth embodiment, the inner circumference base end of the handle 601 is hollowed out in an arc shape from the collar 603 to the main body, forming a gap 611, which allows the handle 601 to be displaced vertically along approximately the trajectory of arrow R6. Furthermore, in the knife 600 according to the sixth embodiment, an elongated hole 612 is provided approximately in the center of the handle 601, along the direction in which the handle 601 extends. This makes the displacement of the handle 601 even easier.

[0033] As shown in Figure 5(B), the knife 700 according to the seventh embodiment comprises a handle 701, a guard portion 703, a rivet 704, a blade 705, a cutting edge 707, and a grip portion 708, while lacking movable parts and stoppers, and also lacking any gaps formed by these components. Furthermore, in the knife 700 according to the seventh embodiment, the blade 705 extends further back from the base than the blade 505 of the knife 500 according to the fifth embodiment shown in Figure 4(B), and is formed so that the outer edge of the handle 701 aligns with the jaw portion. This configuration also facilitates the cutting of food and other materials.

[0034] The kitchen knife 800 according to the eighth embodiment, as shown in Figure 7, comprises, for example, a blade 805 and a handle 801. The blade 805 is made of, for example, forged metal, and has a cutting edge 807 formed at its lower edge. The cutting edge 807 is formed in an arc shape from the tip to the base of the blade, making it easy to cut, for example, food. A tang 806 is provided at the base of the blade 805 and is formed integrally with the blade 805. The kitchen knife 800 is constructed by attaching this tang 806 to the handle 801. More specifically, the tang 806 has a configuration called a "back-through" along at least the upper edge of the handle 801, while the tip of the handle 801 has a notch through which the tang 806 can be inserted. By inserting the tang 806 through this notch and driving rivets 804a and 804b at appropriate locations, the blade 805 can be fixed to the handle 801. In this embodiment, rivets 804a and 804b are driven at predetermined intervals in the front-rear direction of the handle 801. A bottomed, roughly cylindrical guard portion 803 is attached to the tip of the handle 801, supporting the tip of the handle 801 to which the tang 806 is attached. The bottom of the guard portion 803 has a notch through which the tang 806 can be inserted.

[0035] The handle 801 is formed of, for example, a resin, and in this embodiment, it is formed of, for example, polypropylene. The resin used is not limited to polypropylene; other resins such as polyethylene and polycarbonate may also be used. Furthermore, materials other than resin may be used as long as at least a part of it is elastically deformable, and materials such as metal may also be used. In addition, the material that can be applied to the handle 801 is not limited to one type, but may be composed of a combination of two or more types of materials.

[0036] The handle 801 of the kitchen knife 800 according to the eighth embodiment extends along the longitudinal direction of the blade 805. A substantially arc-shaped gap 802 is formed slightly behind the guard portion 803 of the handle 801, at a position eccentric with respect to the rivet 804b that is driven in at the rear. Behind this gap, a grip portion 808 that can be held by the user is formed. The lower part of the gap 802 in the handle 801 is thin and flexible, and is configured as a movable portion 809 for swinging the handle 801 up and down. The upper part of the gap 802 has a stopper portion 810 formed therein, which prevents the movable portion 809 from swinging upward by contacting the inner circumference of the movable portion 809. In this embodiment, the gap 802 is formed in an arc shape, but it may be cut into any shape as long as it allows a part of the handle 801 to be elastically deformed so that the grip portion 808 can swing up and down. For example, it may be cut in a rectangular shape from top to bottom. Alternatively, it may be cut in a linear diagonal direction from top to bottom. Even with such a configuration, for example, the grip portion 808 side of the handle 801 can swing upward and then come into contact with the blade 805 side, thereby functioning as a stopper.

[0037] As described above, the knife 800 according to the eighth embodiment is configured such that, as shown in Figure 7(A), the user grips the handle portion 808, places the blade tip 807 against the upper surface of the object to be cut MT, and pushes downward. As shown in Figure 7(B), the movable portion 809 flexes (elastically deforms) with the contact portion Q of the blade tip 807 against the object to be cut MT as the pivot point, and the approximate tip of the portion forming the gap 802 as the pivot axis, causing the handle portion 808 to swing in the direction indicated by arrow P. Subsequently, the movable portion 809 comes into contact with the stopper 810, restricting the displacement of the handle 801. In this way, a downward pressing force can be applied to the blade tip 807. When the pressing force applied by the user is released, the elastic deformation of the movable portion 809 is restored, and the handle 801 returns to its original position, as shown in Figure 7(A).

[0038] The operation of the knife 800 of the eighth embodiment, configured as described above, will now be explained.

[0039] When using the knife 800 according to this embodiment to cut, for example, a food item MT, the user grips the handle 801 by the grip portion 808. In this state, the user places the blade tip 807 against the food item MT and presses the handle 801 downwards. The movable part 809 flexes, causing the handle 801 to swing upwards. This causes the blade tip 807 to press against the food item MT. In this embodiment, due to the elastic deformation of the movable part 809, even if, for example, the user is not accustomed to handling the knife and applies excessive pressure to the handle 801, the pressure is interfered with by the action of the movable part 809. As a result, the pressure applied by the blade tip 807 against the food item MT is reduced, which can reduce the problem of the food item MT being crushed and resulting in a poor finish after cutting. In other words, when the workpiece MT is pressed by the blade tip 807, a pressing force from the blade tip 807 and tensile stress pulling in the left-right direction are generated in the workpiece MT. If a large pressing force is applied before sufficient tensile stress is generated to cut the workpiece MT, the workpiece MT will be crushed without being cut. However, with the knife 800 according to this embodiment, the pressing force is reduced and transmitted to the blade tip 807, so the crushing of the workpiece MT is mitigated. Furthermore, due to the reaction force of the restoring force of the elastic deformation by the movable part 809, a constant pressing force from the blade tip 807 is continuously applied to the workpiece MT.

[0040] According to the knife 800 of this embodiment, for example, the impact generated when the blade tip 807 collides with the surface of a cutting board or the object to be cut MT is cushioned by the movable part 809, which reduces fatigue for the user. Furthermore, according to the knife 800 of this embodiment, the pressing force of the user is reduced by the movable part 809, which suppresses lateral movement of the blade tip 807 relative to the object to be cut MT, and reduces the impact on the blade tip 807 during cutting, thereby reducing the load on the blade tip 807, reducing wear and damage to the blade tip 807, and improving the durability of the sharpness. As a result, for example, the number of times the knife 800 needs to be sharpened can be reduced, thus extending the product life.

[0041] Furthermore, generally speaking, kitchen knives are used to effectively cut food and other materials by utilizing the sliding friction generated by pressing the blade against the material to be cut MT and sliding it in the back-and-forth direction. However, with conventional kitchen knives, it is necessary to press the knife and move it in the back-and-forth direction, so it can be said that a certain level of skill is required to handle the knife. As a result, if the user is unfamiliar with handling kitchen knives, it may be difficult to apply excessive force to the blade and slide the blade straight (the blade may wobble from side to side), and therefore it is difficult to cut the material to be cut MT cleanly. In contrast, with the kitchen knife 800 of this embodiment, since the handle 801 swings in a roughly circular arc, the blade 805 can also move in a roughly circular arc, and the back-and-forth sliding of the blade 807 becomes smoother, making it easier for even unfamiliar users to effectively cut the material to be cut MT, thus improving operability.

[0042] As described above, according to this embodiment, the cutting tool 100 comprises a blade 105 with a cutting edge 107 formed on its edge, and a handle 101 whose base is fixed to the base end of the blade 105. The tool is configured so that the cutting edge 107 can cut the object to be cut by the operator gripping and operating the handle 101. The handle 101 is designed to be elastically deformed in part when a predetermined pressing force is applied, allowing it to swing up and down. Therefore, even an inexperienced operator can easily perform cutting operations.

[0043] Furthermore, according to this embodiment, the cutting tool 100 comprises a blade 105 with a cutting edge 107 formed on its edge, and a handle 101 provided at the base end of the blade 105. The tool is configured so that the cutting edge 107 can cut the material to be cut by the operator gripping and operating the handle 101. The handle 101 is designed to be elastically deformed in part when a predetermined pressing force is applied, allowing it to swing up and down. Therefore, even an inexperienced operator can easily perform cutting operations.

[0044] Furthermore, according to this embodiment, the handle 101 is curved upward and is formed such that at least the tip is located in front of the base. This improves the operability for the user.

[0045] Furthermore, according to this embodiment, the handle 101 has a grip portion 108 for the user to hold. The handle 101 is formed such that at least a part of the grip portion 108 is located above the blade 105. This makes it possible to further improve the user's operability.

[0046] Furthermore, according to this embodiment, the handle 101 is equipped with a restricting means for restricting the range of motion due to elastic deformation, thereby improving ease of operation for the user.

[0047] Furthermore, according to this embodiment, the handle 101 has a movable part 109 for operating the handle 101 by making a part of the handle 101 thinner and elastically deforming it, and the restricting means has a stopper 110 that restricts the range of motion of the handle 101 by contacting the handle 101 at a position where the handle 101 has been displaced by a predetermined amount by the movable part 109. As a result, excessive operation by the user can be suppressed and operability can be improved.

[0048] Furthermore, according to this embodiment, the handle 101 is made of an elastically deformable resin. Therefore, it is easy to process and has excellent manufacturing cost.

[0049] Furthermore, according to this embodiment, since the blade tip 107 is formed in an arc, the operability of the user can be further improved.

[0050] It should be noted that the actions and effects described in the embodiments of the present invention are merely a list of the most preferred actions and effects arising from the present invention, and the actions and effects according to the present invention are not limited to those described in the embodiments of the present invention.

[0051] In this embodiment, a kitchen knife was used as an example of a bladed tool for explanation, but it can also be applied to other types of bladed tools. For example, it can be applied to pizza cutters used for cutting pizza, fruit knives (paring knives), small knives, and other bladed tools used in cooking. It can also be applied to bladed tools used for cutting things other than food, such as utility knives, survival knives, and saws used as crafting tools.

[0052] Furthermore, in this embodiment, the movable part is made thin and actively elastically deformed, but it is also possible to have a configuration in which the handle itself is elastically deformed without forming a thin part. Also, in this embodiment, the movable part is made thin and elastically deformed, but it is also possible to have a configuration in which the handle is displaceable using an elastic member such as a spring. [Note]

[0053] The following is an addendum, including points already explained.

[0054] The object of the present invention is to provide a knife handle that is held by hand when cooking with a knife, which reduces wear on the blade by providing mobility to the knife handle, thereby suppressing the wobble of the blade tip and reducing the impact on the blade tip when cutting.

[0055] One solution involves using a movable material for the knife handle and giving the blade elasticity to suppress blade wobble during cutting, reduce resistance to the blade, and lessen the stress on the blade, thereby improving the sharpness and durability of the knife.

[0056] More specifically, the knife handle is made of a movable material such as resin or fiberglass, and the blade is given elasticity to help suppress blade wobble during cutting, reduce resistance and make the blade move more smoothly.

[0057] Furthermore, one of the causes of blade wear is that the blade wobbles from side to side, causing it to twist and creating resistance. By giving the handle elasticity in the vertical direction, the lateral wobble is suppressed, thereby reducing blade wear.

[0058] Furthermore, one of the causes of knife blade wear is that when the knife is pulled down onto a cutting board or other surface after cutting, a certain amount of impact accumulates on the blade, causing it to lose its sharpness and become less effective. By making the handle flexible, the impact on the blade is mitigated, slowing down wear and improving the longevity of the sharpness. And because the sharpness lasts longer, the frequency of sharpening decreases, allowing the knife to last longer.

[0059] The present invention provides a knife handle that, by giving the handle mobility in the cutting direction, suppresses blade wobble relative to the object being cut, facilitates the pushing and pulling motion of the knife, and simultaneously reduces wear on the blade.

[0060] Traditional kitchen knives have fixed handles, meaning the force of the gripping hand is directly applied to the blade. Therefore, mastering knife cutting techniques requires a certain amount of practice. One of these techniques involves keeping the blade moving in a straight line, but if you are unfamiliar with using a knife, you may apply too much force, which can prevent the blade from moving smoothly.

[0061] A knife can cut food by either pulling it back or pushing it forward the moment the blade enters the food. However, applying too much force will cause the blade to wobble before it can move back and forth. Pulling or pushing with the blade tilted will increase resistance and hinder the smooth movement of the blade. Therefore, mastering knife skills requires a certain amount of practice.

[0062] The blade of a knife wears down and loses its sharpness with each cut. This wear is caused not only by the force applied during cutting, but also by the impact of hitting the cutting board or other surface after cutting, which gradually dulls the blade. This dulling of the blade reduces its sharpness. Using excessive force due to poor technique will also dull the blade.

[0063] Knife skills depend largely on the skill of the user. This is especially true when using knives of the same quality, but even when using knives of different quality, the difference in skill between users will be so great that it outweighs the quality of the knife.

[0064] If too much force is applied in the cutting direction to the object, the blade will wobble from side to side, hindering the smooth pulling or pushing motion of the knife. Performing this pulling or pushing motion smoothly is one of the essential skills for using a knife.

[0065] Normally, after cutting an object with a knife, it is caught on a cutting board or other surface underneath. However, even then, if force is applied, the blade is subjected to impact, accelerating wear on the blade tip.

[0066] By using a flexible material such as resin or fiberglass for the knife handle, when force is applied to the blade, the elasticity of the handle causes it to move in the cutting direction, dissipating the force of the blade hitting the object in the opposite direction and suppressing blade wobble. The elasticity of the handle also allows the blade to push back even when pressed hard, enabling smooth pushing and pulling motions of the knife.

[0067] The elasticity of the handle reduces the impact of the knife blade on the surface underneath, slowing down blade wear and extending the blade's lifespan.

[0068] For those who are not skilled in knife techniques or who tend to apply too much force, suppressing blade wobble and force transmission smooths the pushing and pulling motion of the knife, reducing the strain on the blade.

[0069] The knife handle will be made of a highly flexible and durable material such as resin or fiberglass. The handle and knife will be fixed in a V-shape or L-shape, and the structure will be designed so that the handle is pressed over the knife. [Explanation of Symbols]

[0070] 100 kitchen knives 101 patterns 105 Blade 107 Cutting edge 108 Grip part 109 Moving parts 110 Stopper

Claims

1. A cutting tool comprising a blade with a cutting edge formed on its edge and a handle provided at the base end of the blade, wherein the operator can grip the handle and operate it so that the cutting edge can cut the object to be cut, The blade is characterized in that the handle is elastically deformed in at least a portion when a predetermined pressing force is applied, allowing it to swing in the vertical direction.

2. The blade according to claim 1, characterized in that the handle is curved upward and at least the tip is positioned in front of the base.

3. The aforementioned handle has a grip portion for the user to hold, The bladed weapon according to claim 2, characterized in that the handle is formed such that at least a portion of the gripping portion is located above the blade.

4. The blade according to claim 1, characterized in that the handle is provided with a restricting means for restricting the range of motion due to elastic deformation.

5. The aforementioned handle has a movable part that allows the handle to move by making a part of the handle thinner and elastically deforming it. The blade according to claim 4, characterized in that the restricting means has a contact portion that contacts the handle at a position where the handle has been displaced by a predetermined amount by the movable portion, thereby restricting the range of motion of the handle.

6. The blade according to any one of claims 1 to 5, characterized in that the handle is formed of an elastically deformable resin.

7. The cutting tool according to any one of claims 1 to 5, characterized in that the cutting edge is formed to form an arc.

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