Damping tool
By incorporating stress-relief holes into the knife blade, the impact problem of existing knives when cutting hard ingredients is solved, resulting in a safer and more comfortable cutting experience while reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN KITCHEN CREATION TECH CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-26
AI Technical Summary
Existing kitchen knives generate strong impact when cutting hard ingredients, causing hand vibration and the risk of slipping. Existing improvement solutions, such as material optimization and internal shock absorption structures, are costly and have limited effectiveness.
A stress-relief hole is set on the blade of the kitchen knife, located in the force-guiding zone, to reduce the impact force transmitted from the cutting end to the handle. The deformation of the stress-relief hole reduces vibration and impact.
It effectively reduces the vibration and impact on the user's hands, improves the safety and comfort of cutting, and reduces production costs.
Smart Images
Figure CN224407668U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of daily necessities, and in particular to a shock-absorbing knife. Background Technology
[0002] Existing kitchen knives have a simple design and are only used for cutting food. When cutting hard ingredients such as bones or frozen food, users need to use more force. At this time, existing kitchen knives will be subjected to greater impact than when cutting ordinary food. During continuous use, users will experience more impact and vibration. Ordinary kitchen knives cannot cut accurately in such scenarios, and the impact can cause the user to drop the knife. This results in a poor user experience and may even pose a safety hazard.
[0003] Currently, most solutions on the market are limited to optimizing the handle material (such as adding a rubber grip). However, such improvements can only partially alleviate hand vibration and cannot fundamentally reduce the impact force transmitted by the blade. Some solutions use internal shock-absorbing structures (such as setting up interlayers or damping materials) to reduce vibration, but these methods are complex, costly, and not conducive to production. Utility Model Content
[0004] The main purpose of this utility model is to propose a shock-absorbing knife, which aims to solve the problems mentioned above, such as the strong impact force when chopping with existing kitchen knives, the lack of shock-absorbing structure, and the poor user experience.
[0005] To achieve the above objectives, this utility model proposes a shock-absorbing knife, including a blade and a handle connected to one side of the blade; the blade has a cutting edge, and the side of the cutting edge near the handle is a cutting end for chopping.
[0006] The blade body is also provided with a force-relieving hole. When the cutting end cuts an external object, the force on the cutting end is transmitted along the blade body to the handle. The blade body is provided with a force-guiding area, and the force-relieving hole is located in the force-guiding area to reduce the force transmitted to the handle when the cutting end cuts the external object.
[0007] Optionally, the length of the cutting end does not exceed 1 / 3 of the length of the blade portion, and the length boundary point of the cutting end includes the edge endpoint and the inner endpoint; the range of the force guiding zone is: on the blade body, the area where the vertical line of the blade portion at the inner endpoint faces the handle side.
[0008] Optionally, the cutting edge angle at the cutting end is 30°; and / or, the chopping edge angle at the slicing end is 45°.
[0009] Optionally, the diameter of the stress relief hole is greater than or equal to 5 mm and less than or equal to 12 mm.
[0010] Optionally, the length of the blade portion is greater than or equal to 190 mm and less than or equal to 210 mm.
[0011] Optionally, the stress relief holes are provided in multiple ways, including at least a first stress relief hole, a second stress relief hole and a third stress relief hole, wherein the first stress relief hole, the second stress relief hole and the third stress relief hole are arranged at intervals.
[0012] Optionally, the radii of the first relief hole, the second relief hole, and the third relief hole decrease sequentially in the direction approaching the handle.
[0013] Optionally, the first stress relief hole, the second stress relief hole, and the third stress relief hole are arranged in an arc shape within the force guiding zone.
[0014] Optionally, the cutting end is located at the end of the blade portion near the handle, and the end of the blade portion away from the handle also has a slicing end for cutting, the slicing end being located on the side of the cutting end away from the stress relief hole.
[0015] Optionally, the thickness of the cutting end is greater than or equal to 2 mm and less than or equal to 3 mm.
[0016] Optionally, the thickness of the cutting end is greater than that of the slicing end.
[0017] Optionally, the blade is provided with an anti-slip part, which is adjacent to the handle.
[0018] Optionally, the shock-absorbing knife also has a left connecting part and a right connecting part, which are respectively located on both sides of the handle and connected to the handle. The left connecting part, the right connecting part and the handle form a handle for hand gripping.
[0019] This invention improves the structure of the shock-absorbing knife by setting a stress-relieving hole on the blade to reduce vibration of the handle connected to one side of the blade. Since the stress-relieving hole is located in the force-guiding zone that transmits the impact force received by the cutting end, when the cutting end of the blade is cutting hard objects, the stress-relieving hole on the blade prevents the impact force received by the hard object on the cutting end. Moreover, the deformation of the stress-relieving hole has a stress-relieving effect, reducing the vibration transmission during the cutting process and the impact and vibration received by the user's hand, reducing the pain of the user's hand when cutting hard objects, preventing the handle from slipping out of the hand, thereby improving cutting safety, comfort and durability. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of the shock-absorbing cutter 100 of this utility model;
[0022] Figure 2 This is a schematic diagram showing the position and structure of the force guiding zone 1111 and the force relief hole 12 when the cutting end 111 of the shock-absorbing cutter 100 of this utility model is in use;
[0023] Figure 3 The cutting angles at the chopping end 111 and the slicing end 112 of the shock-absorbing cutter 100 of this utility model;
[0024] Figure 4 This is a structural schematic diagram of the shock-absorbing cutter 100 of this utility model from another perspective;
[0025] Figure 5 This is an exploded view of the shock-absorbing tool 100 of this utility model;
[0026] Figure 6 This is a structural schematic diagram of the shock-absorbing tool 100 of this utility model from another perspective.
[0027] Explanation of icon numbers:
[0028] label name label name 100 Vibration-damping cutting tools 123 Third unloading hole 10 Blade 13 Anti-slip part 11 Blade section 131 Anti-slip serrations 111 Cutting end 20 knife handle 1111 Guiding force zone 21 knife handle 112 cut end 22 Left connecting part 1121 Force transmission zone 23 Right connecting part 12 Relief hole 24 Connecting rod 121 First unloading hole 25 Connection hole 122 Second unloading hole 26 Connection 30 external objects
[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0033] Most kitchen knives can be used to cut regular ingredients using the front and middle sections of the blade. When cutting bones or hard ingredients, the middle and rear sections of the blade are usually used because they are closer to the handle, making it easier for the user to apply pressure. As a result, the user tends to use more force when striking the knife and cutting board. The impact between the blade and the cutting board generates impact force and strong vibration. Since the force is concentrated on the knife and transmitted to the handle, and then to the user's hand, the user experiences impact and vibration. If the user drops the knife, there is a risk of cuts. Long-term use can also cause damage to the hands, arms, and other parts of the body.
[0034] In existing technologies, using materials with shock-absorbing properties on the kitchen knife can alleviate the impact and vibration, but it does not reduce the impact force on the knife itself, which can damage the knife. Other methods include adding sandwich structures to the knife for shock absorption, but this increases the production cost of the knife.
[0035] To address the problems existing in the prior art, this application proposes a vibration-damping tool 100, with reference to... Figure 1 and Figure 3The shock-absorbing knife 100 consists of an integrally formed blade 10 and handle 21. The blade 10 has a cutting edge 11, and the middle and rear end of the cutting edge 11 is provided with a cutting end 111. The cutting end 111 can cut external objects 30, and is especially suitable for cutting hard objects such as bones and frozen products. The user can control the cutting edge 11 by holding the handle 21. By setting a force relief hole 12 in the force guiding area 1111 of the cutting end 111, and the force relief hole 12 is set close to the handle 21, the force relief hole 12 can relieve the impact force received by the cutting end 111. At the same time, the force relief hole 12 prevents the propagation of the impact force, thereby reducing the impact force transmitted to the handle 21 or handle 20, reducing vibration, and reducing the vibration and impact force on the user's hand. The specific force-relieving principle is that by setting the force-relieving hole 12, when cutting the external object 30, the blade 10 can deform to a certain extent at the force-relieving hole 12, thereby reducing the force transmitted to the handle, reducing vibration, and reducing the vibration and impact on the user's hand when cutting.
[0036] Based on the above description, the vibration damping tool 100 has the following embodiments: Example
[0037] In terms of connection method, the shock-absorbing knife 100 has an integrally set blade body 10 and handle 21. The blade body 10 is approximately rectangular, the handle 21 is set on the side of the blade body 10, and the blade 11 is set at the bottom of the blade body 10 for cutting. The blade 11 has a chopping end 111 and a slicing end 112. The chopping end 111 is set at the end of the blade 11 near the handle 21 for chopping external objects 30, and the slicing end 112 is set at the front end of the blade 11 for cutting general food. The thickness of the chopping end 111 is set to be greater than that of the slicing end 112. Making the chopping end 111 thicker makes the structure more stable and has a better stability and cutting effect when cutting hard objects.
[0038] A force-guiding zone 1111 is provided on the blade 10, for reference. Figure 2(The shaded area in the figure represents the force guiding zone 1111). The range of the force guiding zone 1111 is defined by the edge endpoint and inner endpoint O of the length boundary point of the cutting end 111. The area on the blade 10 at the inner endpoint O, where the vertical line of the blade portion 11 faces the side of the handle 21, is the force guiding zone 1111. The force relief hole 12 is located within this force guiding zone 1111. Preferably, the force relief hole 12 can be located on the path of force transmission from the cutting end 111 to the handle 21 within the force guiding zone 1111. When the cutting end 111 cuts an object, the impact force on the cutting end 111 is transmitted on the blade 10 towards the handle 21. The force relief hole 12, located on the path of force transmission to the handle 21, can effectively relieve the impact force. The area where the force on the cutting end 112 is transmitted to the handle 21 is the force transmission zone 1121. When the user uses the knife... When the blade 11 is cut, the cutting end 111 and the slicing end 112 are subjected to different forces, generating a force guiding area 1111 and a force transmission area 1121 on the blade 10, which are transmitted to the handle 20 and the user. The blade 10 is subjected to impact force and vibrates. Therefore, a force relief hole 12 is provided on the blade 10. The force relief hole 12 is located in the force guiding area 1111. The force relief hole 12 is preferably circular. The force relief hole 12 can increase damping, buffer the force on the blade 11 when cutting vegetables, and also disrupt the transmission path of vibration, thus consuming the vibration generated by the blade 10. In particular, it can reduce the impact on the cutting end 111. Since the cutting end 111 is mainly used to cut hard objects, it will bear a greater impact force. Therefore, providing a force relief hole 12 on the impact force transmission path can effectively reduce the impact force transmitted to the handle 21.
[0039] Among them, reference Figure 3 The cutting edge 112 has an edge angle greater than or equal to 20° and less than or equal to 30°, which can be set to 20°, 25° or 28°, preferably 30°, which can balance sharpness and durability and is suitable for cutting a variety of everyday ingredients (such as vegetables and fruits). The chopping edge 111 has an edge angle greater than or equal to 30° and less than or equal to 45°, which can be set to 30°, 35° or 40°, preferably 45°, which makes the chopping edge 111 more impact resistant and suitable for operations that require greater force, such as chopping and cutting hard objects.
[0040] Preferably, refer to Figure 4 The overall length L3 of the blade 10 can be set between 200mm and 205mm, and the length can be set according to actual needs, such as 180mm, 200mm, or 220mm. The length L2 of the blade 11 is between 190mm and 210mm, preferably 195mm. The chopping end 111 is usually set at the rear 1 / 2 of the blade 11 and does not exceed 1 / 2 of the blade 11, while the slicing end 112 is at the front 1 / 2. (Refer to...) Figure 2The length L1 of the cutting end 111 is between 80mm and 100mm, and can be set to 70mm, 80mm or 100mm, etc., preferably 90mm, to ensure that the object can be effectively cut.
[0041] Preferably, the thickness of the blade 10 is between 2mm and 3.5mm, preferably 2.5mm. The thickness of the cutting end 111 can be set to 2mm, 2.5mm or 2.7mm, etc., which has a larger point of force and can cut hard objects better. The thickness of the slicing end 112 is slightly smaller than that of the cutting end 111. The thickness of the slicing end 112 is preferably set between 2mm and 2.2mm, for example, it can be set to 1.8mm, 2mm or 2.2mm, 2.5mm, so as to ensure the sharpness of the blade 11.
[0042] Specifically, the stress relief holes 12 are provided with multiple holes to enhance the shock absorption effect, including at least a first stress relief hole 121, a second stress relief hole 122, and a third stress relief hole 123. The first stress relief hole 121, the second stress relief hole 122, and the third stress relief hole 123 are arranged in an arc shape near the handle 21 and on one side of the connection 26 between the handle 21 and the blade 10, which can accurately block the impact force transmitted to the handle 21. (Refer to...) Figure 2 Taking the inner endpoint O as the force-bearing point of the cutting end 111, the first stress-relieving hole 121, the second stress-relieving hole 122, and the third stress-relieving hole 123 are located within the range of the vertical line from the inner endpoint O of the blade 11 toward the side of the handle 21. In practical applications, point O can be any point within the length L1 of the cutting end 111. The first stress-relieving hole 121, the second stress-relieving hole 122, and the third stress-relieving hole 123 are set within the force-guiding zone 1111 in accordance with the direction of force transmission from the cutting end 111 to the handle 21. The radii of the first relief hole 121, the second relief hole 122, and the third relief hole 123 decrease sequentially in the direction close to the handle 21. The first relief hole 121 receives the strongest impact force and is the fastest to receive the impact force, so the radius of the first relief hole 121 is the largest. By setting relief holes of different sizes according to the force intensity and speed at different positions of the handle 21, the impact force can be reasonably and efficiently prevented from being transmitted to the handle 20, thereby reducing the force on the handle 20 and reducing the impact force and vibration felt by the user.
[0043] Optionally, the diameter of the stress relief hole 12 is between 6mm and 12mm, and the diameters of the second stress relief hole 122 and the third stress relief hole 123 decrease sequentially. The diameters of the first stress relief hole 121, the second stress relief hole 122, and the third stress relief hole 123 can be 2mm, 5mm, 8mm, or 12mm, 13mm, etc., depending on actual needs. The diameter R1 of the first stress relief hole 121 is preferably 12mm, the diameter R2 of the second stress relief hole 122 is preferably 9mm, and the diameter R3 of the third stress relief hole 123 is preferably 6mm. Different numbers of stress relief holes 12 can also be provided, such as 5 or 7. Stress relief holes 12 of different shapes and positions can also be provided within the force guiding zone 1111, such as elongated, square, semi-circular, or polygonal shapes, to achieve different damping effects or damping effects at different locations.
[0044] Preferably, the first stress relief hole 121, the second stress relief hole 122 and the third stress relief hole 123 are arranged at arc intervals and are all circular. The arc arrangement of the first stress relief hole 121, the second stress relief hole 122 and the third stress relief hole 123 is similar to the structure of the connection 26. The two work together to more effectively reduce the impact force. The circular stress relief hole 12 can deform and relieve force when subjected to force, providing a good shock absorption effect. In addition, the opening design facilitates production and manufacturing, which helps to save costs.
[0045] Further, refer to Figure 5 and Figure 6 The handle 21 has a left connecting part 22 and a right connecting part 23 on both sides. The left connecting part 22 and the right connecting part 23 are arc-shaped at the connection point 26 and have a certain thickness, which is beneficial for withstanding impact and shock absorption. Since the connection point 26 is located at the connection position, it is easily damaged by impact for a long time. Therefore, the first unloading hole 121, the second unloading hole 122 and the third unloading hole 123 are located near the connection point 26, which can also effectively prevent the impact from damaging the connection relationship between the handle 21, the left connecting part 22 and the right connecting part 23, preventing the shock-absorbing tool 100 from being damaged and improving its service life.
[0046] Specifically, the handle 21 is provided with a through hole and a connecting rod 24. The connecting rod 24 passes through the through hole and is provided in the handle 21. The left connecting part 22 and the right connecting part 23 are provided with connecting holes 25 corresponding to the position of the connecting rod 24. They are connected to the connecting rod 24 through the connecting holes 25. The left connecting part 22 and the right connecting part 23 are connected to the handle 21 to form a handle 20 for the user to hold. Therefore, the left connecting part 22 and the right connecting part 23 are connected to the blade 10 by connecting to the handle 21, so that the user can control the blade 10. Moreover, the left connecting part 22 and the right connecting part 23 increase the contact area between the handle 21 and the user, which is more conducive to holding and stabilizing the hand, and the user's grip and use process is more comfortable.
[0047] This connection method allows the first unloading hole 121, the second unloading hole 122, and the third unloading hole 123 to form a shock-absorbing cutter 100 with a shock-absorbing function. During use, especially when using the chopping end 111 to cut hard objects, the first unloading hole 121, the second unloading hole 122, and the third unloading hole 123 can provide effective buffering in the force guiding area 1111, reducing the impact force transmitted to the handle 20. This results in a better shock-absorbing effect and user experience for the shock-absorbing cutter 100. Moreover, this structure is easy to manufacture and saves production costs.
[0048] Based on the aforementioned embodiments, the shock-absorbing knife 100 also provides a structure to prevent hand slippage. An anti-slip part 13 is provided on the back of the blade at the top of the blade 10. The anti-slip part 13 is composed of multiple anti-slip serrations 131 spaced apart. When the user holds the handle 21, he / she can press against the anti-slip part 13 with his / her fingers. The anti-slip serrations 131 have a certain length and generate friction with the user, preventing the hand from slipping forward when cutting external objects 30, making cutting more stable. The anti-slip part 13 and the force-relieving hole 12 are both located near the connection 26, that is, near the handle 21, which is conducive to direct use by the user's hand. This makes the shock-absorbing knife 100 have a stable effect and a safer and more convenient way of use. On the basis of shock absorption, the anti-slip structure provides better stability when cutting hard objects, further improving the user's experience.
[0049] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A shock-absorbing knife (100), comprising a blade (10) and a handle (21) connected to one side of the blade (10); the blade (10) has a cutting edge (11), the side of the cutting edge (11) near the handle (21) being a cutting end (111) for chopping, characterized in that: The blade (10) is also provided with a force-relieving hole (12). When the cutting end (111) cuts the external object (30), the force on the cutting end (111) is transmitted along the blade (10) to the handle (21). The blade (10) is provided with a force-guiding area (1111). The force-relieving hole (12) is located in the force-guiding area (1111) to reduce the force transmitted to the handle (21) when the cutting end (111) cuts the external object (30).
2. The shock absorbing tool (100) of claim 1, wherein, The length of the cutting end (111) does not exceed 1 / 2 of the length of the blade (11), and the length boundary point of the cutting end (111) includes the edge endpoint and the inner endpoint (O); the range of the force guiding area (1111) is: on the blade (10), the area on the side of the blade (11) at the inner endpoint (O) facing the handle (21).
3. The vibration-damping cutting tool (100) as described in claim 1, characterized in that, The cutting angle at the cutting end (111) is greater than or equal to 30° and less than or equal to 45°.
4. The vibration-damping cutting tool (100) as described in claim 1, characterized in that, The diameter of the stress relief hole (12) is greater than or equal to 5 mm and less than or equal to 12 mm; and / or, The length of the blade portion (11) is greater than or equal to 190 mm and less than or equal to 210 mm.
5. The shock-absorbing cutting tool (100) as described in any one of claims 1 to 4, characterized in that, The stress relief hole (12) is provided in multiple ways, including at least a first stress relief hole (121), a second stress relief hole (122) and a third stress relief hole (123), and the first stress relief hole (121), the second stress relief hole (122) and the third stress relief hole (123) are arranged at intervals.
6. The vibration-damping cutting tool (100) as described in claim 5, characterized in that, The radii of the first unloading hole (121), the second unloading hole (122), and the third unloading hole (123) decrease sequentially in the direction close to the handle (21).
7. The shock-absorbing cutting tool (100) as described in claim 5, characterized in that, The first stress relief hole (121), the second stress relief hole (122) and the third stress relief hole (123) are arranged in an arc shape within the force guiding zone (1111).
8. The shock-absorbing cutting tool (100) as described in any one of claims 1 to 4, characterized in that, The cutting end (111) is located at one end of the blade portion (11) near the handle (21), and the end of the blade portion (11) away from the handle (21) also has a cutting end (112) for cutting, the cutting end (112) being located on the side of the cutting end (111) away from the stress relief hole (12); and / or, The thickness of the cutting end (111) is greater than or equal to 2 mm and less than or equal to 3 mm.
9. The shock-absorbing cutting tool (100) as described in any one of claims 1 to 4, characterized in that, The blade (10) is provided with an anti-slip part (13), which is adjacent to the handle (21).
10. The shock-absorbing cutting tool (100) as described in any one of claims 1 to 4, characterized in that, The shock-absorbing cutter (100) is also provided with a left connecting part (22) and a right connecting part (23). The left connecting part (22) and the right connecting part (23) are respectively provided on both sides of the handle (21) and connected to the handle (21). The left connecting part (22), the right connecting part (23) and the handle (21) form a handle (20) for hand grip.