A center of gravity adjustable cutter

Abstract

The utility model relates to a kind of cutting tools of adjustable gravity center, including handle, blade and counterweight, handle includes left handle piece, right handle piece and middle handle piece, blade rear end is connected with the front end of middle handle piece, each handle piece is detachably connected by connecting assembly, middle handle piece is equipped with slide hole, left handle piece and right handle piece inside are each equipped with recess, slide hole and two recesses are mutually formed counterweight groove, counterweight is placed in counterweight groove and can slide along counterweight groove front and back, left handle piece or / and right handle piece outside is equipped with the through hole being communicated with counterweight groove, counterweight is equipped with first limit piece and second limit piece.The utility model's cutting tool by sliding counterweight is arranged in counterweight groove, and two limit pieces can be respectively limited in the front and back end position of counterweight groove, so as to adjust the counterweight gravity center of handle by the position of sliding counterweight, so that cutting tool can satisfy professional chef to different cutting processing operation cutting tool counterweight requirement, and adjustment operation is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of cutting tool technology, and more specifically relates to a cutting tool with an adjustable center of gravity. Background Technology

[0002] A knife is an everyday tool used for cutting objects. Its structure generally includes a handle and a blade connected to the handle. When using it, the blade is operated by holding the handle, making it convenient to cut.

[0003] For a professional chef, the requirements for the weight distribution of the knife will vary depending on the cutting method used to process the ingredients. For example, when the weight distribution of the knife is designed with the center of gravity forward, the precision control will be better, which is suitable for the tip-guided operation, such as strawberry stem removal and carving. The mechanical principle is that the gravitational acceleration increases the downward pressure (impact force 130%).

[0004] When the blade's counterweight is designed with the center of gravity in the middle, its continuous cutting efficiency will be better, making it suitable for full-edge contact operation techniques, such as tomato / kiwi slicing, meat slicing, etc. Its mechanical principle is torque balance (150% control precision).

[0005] When the weight of a knife is designed with the center of gravity towards the rear, its pressure transmission is better, which is suitable for operating techniques that use the base of the knife, such as dicing potatoes / radishes or separating the skin and meat of roast duck breast. Its mechanical principle is: the lever effect of saving effort (wrist fatigue ↓40%).

[0006] Therefore, the weight design of knives is a very important issue in the use of knives. A well-designed weight design will make it easier for chefs to cut and process ingredients, and make the operation more convenient. However, the existing knives have a fixed center of gravity design that cannot be adjusted, which fails to meet the knife weight requirements of professional chefs for different cutting operations. Utility Model Content

[0007] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a cutting tool with an adjustable center of gravity.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable center of gravity cutting tool, including a handle and a blade connected to the handle, and a counterweight. The handle includes a left shank, a right shank, and a middle shank located between the left and right shanks. The rear end of the blade is connected to the front end of the middle shank. The left, right, and middle shanks are detachably connected by a connecting assembly. The middle shank has a sliding hole. The inner sides of the left and right shanks are provided with grooves. The sliding hole and the two grooves form a counterweight groove. The counterweight is placed in the counterweight groove and can slide back and forth along the counterweight groove. The outer side of the left and / or right shanks has a through hole communicating with the counterweight groove. The counterweight has a first limiting member and a second limiting member. The first limiting member can limit the counterweight to the front end of the counterweight groove, while the second limiting member can limit the counterweight to the rear end of the counterweight groove.

[0009] In the above solution, the counterweight is slidably positioned within the counterweight groove. Through holes are provided on the outer sides of the left and / or right handle plates, allowing the user's fingers to pass through and push the counterweight. Two limiting members respectively restrict the counterweight to the front and rear ends of the counterweight groove. Therefore, the center of gravity of the handle can be adjusted by sliding the counterweight's position. In use, when the counterweight is slid to the front end of the counterweight groove and restrained by the first limiting member, the counterweight increases the weight of the front section of the handle, shifting the center of gravity forward and improving precision control, making it suitable for tasks such as strawberry stem removal and carving. Conversely, when the first limiting member is released and the counterweight is slid to the rear end of the counterweight groove and restrained by the second limiting member, the counterweight increases the weight of the rear section of the handle, shifting the center of gravity rearward and improving pressure transmission. Suitable for operations such as dicing potatoes / radishes and separating the skin and meat of roast duck breast; when the connecting component and each handle piece are disassembled, and the counterweight is removed from the counterweight groove, and then the connecting component and each handle piece are reassembled, the counterweight groove is not installed, so the center of gravity of the knife handle is centered, and its continuous cutting efficiency is better, making it suitable for operations such as thinly slicing tomatoes / kiwis and slicing meat; this realizes the structural function of adjustable counterweight center of gravity of the knife, so that the knife can meet the counterweight requirements of professional chefs for different cutting operations.

[0010] Furthermore, the aforementioned first limiting member is a first adsorption member located at the front end of the counterweight, and the second limiting member is a second adsorption member located at the rear end of the counterweight. When the counterweight is slid to the front end of the counterweight groove, the first adsorption member adsorbs onto the corresponding side wall of the counterweight groove. Under the adsorption action of the first adsorption member and the corresponding side wall of the counterweight groove, the counterweight cannot slide, thus restricting the counterweight to the front end of the counterweight groove. Pushing the counterweight backward will release the adsorption action of the first adsorption member and the corresponding side wall of the counterweight groove. When the counterweight is slid to the rear end of the counterweight groove, the second adsorption member adsorbs onto the corresponding side wall of the counterweight groove. Under the adsorption action of the second adsorption member and the corresponding side wall of the counterweight groove, the counterweight also cannot slide, thus restricting the counterweight to the rear end of the counterweight groove. Pushing the counterweight forward will release the adsorption action of the second adsorption member and the corresponding side wall of the counterweight groove.

[0011] Furthermore, the first adsorption element is a first magnetic block, the second adsorption element is a second magnetic block, and the front and rear sidewalls of the counterweight groove are made of metal. When the counterweight block is slid to the front end of the counterweight groove, the first magnetic block can attract each other to the front sidewall of the metal counterweight groove through its own magnetic action, thereby restricting the counterweight block to the front end of the counterweight groove; when the counterweight block is slid to the rear end of the counterweight groove, the second magnetic block can attract each other to the rear sidewall of the metal counterweight groove through its own magnetic action, thereby restricting the counterweight block to the rear end of the counterweight groove.

[0012] Furthermore, the front and rear ends of the aforementioned counterweight are provided with mounting grooves, and the first magnetic block and the second magnetic block are respectively embedded in the mounting grooves on the corresponding sides, which facilitates the installation of the first magnetic block and the second magnetic block.

[0013] Furthermore, the aforementioned left and right handle plates are made of aluminum alloy to achieve the structural function of the front and rear side walls of the aforementioned counterweight groove being made of metal. Aluminum alloy has high strength, which can improve the durability of the handle. In addition, the aluminum alloy handle plates are also anodized, which can significantly improve the corrosion resistance, wear resistance and decorative properties of the left and right handle plates.

[0014] Furthermore, spacers are provided between the left and middle handle plates and between the right and middle handle plates. Each spacer has a mating hole corresponding to its sliding hole position. The sliding hole, the two mating holes, and the two grooves form a counterweight groove. The spacers separate the handle plates, reducing friction between them. Multiple spacers can be used, resulting in varying handle widths. This allows users to select the appropriate number of spacers based on their grip habits, adjusting the handle width for a more comfortable grip.

[0015] Furthermore, the aforementioned connecting components include a female nail and a male nail. The female nail passes through each handle and spacer and is threadedly connected to the male nail, thus completing the assembly operation of each handle and spacer. By twisting the male nail to disengage from the female nail, each handle and spacer can be disassembled and separated, making the disassembly and assembly operation convenient.

[0016] Furthermore, the aforementioned female nail includes a nail body and a nail head connected to the nail body. The cross-section of the nail body is a non-circular structure, and the middle shank has a through hole that matches the cross-sectional shape of the nail body. The nail body is placed in the through hole, which prevents the nail body from rotating in the through hole. Since the female nail cannot rotate in the through hole, it is easier to screw the female nail to connect and disconnect it.

[0017] Furthermore, the aforementioned spacer is made of G10 material. G10 material has high strength and is not easily damaged. It also has the characteristics of corrosion resistance and wear resistance, which can better reduce the friction between the spacer and the handle and connecting piece. In addition, G10 material has good flexibility, so after the female nail and the male nail are connected, the spacer and each handle piece can fit more tightly and the connection is more stable.

[0018] Furthermore, the aforementioned shank plate and blade are an integral structure, which ensures the stability of the connection between the shank plate and the blade.

[0019] This utility model's knife features an adjustable counterweight center of gravity, allowing chefs to choose whether to shift the counterweight center of gravity forward, in the center, or backward depending on the cutting method, thus meeting the counterweight requirements of professional chefs for different cutting operations. Specifically, sliding the counterweight forward until the first magnetic block attracts the front wall of the counterweight groove adjusts the counterweight center of gravity to forward; sliding it backward until the second magnetic block attracts the rear wall of the counterweight groove adjusts the counterweight center of gravity to backward; and removing the counterweight and reassembling the handle adjusts the counterweight center of gravity to the center, making the adjustment very convenient. Attached Figure Description

[0020] Figure 1 This is an exploded structural diagram of the adjustable center of gravity cutting tool according to an embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of the adjustable center of gravity cutting tool in the state where the counterweight center of gravity is forward, according to an embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of the adjustable center of gravity cutting tool in the state where the counterweight center of gravity is located at the rear, according to an embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the adjustable center of gravity cutting tool in the state where the counterweight center of gravity is centered, according to an embodiment of the present invention.

[0024] Figure 5 This is an exploded structural diagram of the counterweight block of the adjustable center of gravity cutting tool according to an embodiment of the present invention.

[0025] The annotations in the attached figures are explained as follows: 1. Handle; 10. Groove; 101. Counterweight groove; 102. Through hole; 11. Left handle plate; 12. Right handle plate; 13. Middle handle plate; 130. Sliding hole; 131. Through hole; 14. Spacer; 141. Mating hole; 2. Blade; 3. Counterweight block; 30. Mounting groove; 31. First suction element; 32. Second suction element; 41. Female nail; 411. Nail body; 412. Nail head; 413. Flat surface; 42. Female nail. Detailed Implementation

[0026] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0027] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0028] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings: Example 1 like Figure 1 , 2As shown, this embodiment provides a knife with an adjustable center of gravity, including a handle 1 and a blade 2 connected to the handle 1, and also includes a counterweight 3. The handle 1 includes a left shank 11, a right shank 12, and a middle shank 13 disposed between the left shank 11 and the right shank 12. The rear end of the blade 2 is connected to the front end of the middle shank 13, and the middle shank 13 and the blade 2 are integral structures to ensure the connection stability between the middle shank 13 and the blade 2. The left handle plate 11, right handle plate 12 and middle handle plate 13 are detachably connected by a connecting assembly. The middle handle plate 13 has a sliding hole 130. The inner sides of the left handle plate 11 and right handle plate 12 are provided with grooves 10. The sliding hole 130 and the two grooves 10 form a counterweight groove 101. The counterweight 3 is placed in the counterweight groove 101 and can slide back and forth along the counterweight groove 101. The outer side of the left handle plate 11 or / and the right handle plate 12 is provided with a through hole 102 communicating with the counterweight groove 101. The counterweight 3 is provided with a first limiting member and a second limiting member. The first limiting member can limit the counterweight 3 to the front end of the counterweight groove 101, while the second limiting member can limit the counterweight 3 to the rear end of the counterweight groove 101.

[0029] In the above solution, the counterweight 3 is slidably set in the counterweight groove 101, and the left handle plate 11 and / or the right handle plate 12 are provided with through holes 102, so that the user's fingers can pass through the through holes 102 to push the counterweight 3 to slide. The two limiting members can respectively restrict the counterweight 3 to the front and rear ends of the counterweight groove 101. Thus, the counterweight center of gravity of the knife handle 1 can be adjusted by sliding and adjusting the position of the counterweight 3. In this way, the structural function of adjustable counterweight center of gravity of the knife can be realized, so that the knife can meet the counterweight requirements of professional chefs for different cutting operations.

[0030] When using the cutting tool in this embodiment, such as Figure 2 As shown, when the counterweight 3 is slid to the front end of the counterweight groove 101 and is prevented from sliding by the first limiting member, the counterweight 3 will increase the weight of the front section of the handle 1, making the center of gravity of the handle 1 more forward, thus improving its precision control and making it suitable for operations such as strawberry stem removal and carving. Figure 3 As shown, the sliding restriction of the counterweight 3 by the first limiting member is released, and the counterweight 3 is then slid to the rear end position of the counterweight groove 101. The second limiting member then restricts the counterweight 3 from sliding. At this point, the counterweight 3 increases the weight of the rear section of the knife handle 1, making the center of gravity of the knife handle 1 more rearward. This improves pressure transmission, making it suitable for operations such as dicing potatoes / radishes and separating the skin and meat of roast duck breast. Figure 4 As shown, the connecting component is disassembled from each handle piece, and the counterweight 3 is removed from the counterweight groove 101. Then the connecting component is reassembled with each handle piece. At this time, the counterweight 3 is not installed in the counterweight groove 101, so that the center of gravity of the knife handle 1 is centered, and its continuous cutting efficiency will be better, making it suitable for operations such as tomato / kiwi slicing, meat slicing, etc.

[0031] Example 2 This embodiment is a further improvement on the adjustable center of gravity tool structure of Embodiment 1. The improvement lies in that, as... Figure 1 , 5 As shown, the first limiting member is a first adsorption member 31 located at the front end of the counterweight 3, and the second limiting member is a second adsorption member 32 located at the rear end of the counterweight 3. When the counterweight 3 is slid to the front end of the counterweight groove 101, the first adsorption member 31 adsorbs onto the corresponding side wall of the counterweight groove 101. Under the adsorption action of the first adsorption member 31 and the corresponding side wall of the counterweight groove 101, the counterweight 3 cannot slide, thus limiting the counterweight 3 to the front end of the counterweight groove 101. Pushing the counterweight 3 backward will release it. In addition to the adsorption effect between the first adsorption member 31 and the corresponding side wall of the counterweight groove 101, when the counterweight block 3 is slid to the rear end position of the counterweight groove 101, the second adsorption member 32 adsorbs onto the corresponding side wall of the counterweight groove 101. Under the adsorption effect of the second adsorption member 32 and the corresponding side wall of the counterweight groove 101, the counterweight block 3 cannot slide at this time, thus restricting the counterweight block 3 to the rear end position of the counterweight groove 101. Pushing the counterweight block 101 forward will release the adsorption effect between the second adsorption member 32 and the corresponding side wall of the counterweight groove 101. The first adsorption member 31 and the second adsorption member 32 can be magnetic blocks or Velcro, etc.

[0032] Specifically, such as Figure 5 As shown, the first adsorption element 31 is a first magnetic block, and the second adsorption element 32 is a second magnetic block. The counterweight 3 has mounting grooves 30 on both its front and rear ends. The first magnetic block is embedded in the mounting groove 30 located at the front of the counterweight 3, and the second magnetic block is embedded in the mounting groove 30 located at the rear of the counterweight 3. This facilitates the installation of the first and second magnetic blocks. The front and rear sidewalls of the counterweight groove 101 are made of metal. When the counterweight 3 is slid to the front end of the counterweight groove 101, the first magnetic block attracts the metal sidewall of the counterweight groove 101 through its own magnetism, thus confining the counterweight 3 to the front end of the counterweight groove 101. When the counterweight 3 is slid to the rear end of the counterweight groove 101, the second magnetic block attracts the metal sidewall of the counterweight groove 101 through its own magnetism, thus confining the counterweight 3 to the rear end of the counterweight groove 101.

[0033] The aforementioned left handle plate 11 and right handle plate 12 are made of aluminum alloy to realize the structural function of the front and rear side walls of the aforementioned counterweight groove 101 being made of metal. Furthermore, aluminum alloy has high strength, which can improve the durability of the handle. In addition, the aluminum alloy handle plates are also anodized, which can significantly improve the corrosion resistance, wear resistance, and decorative properties of the left handle plate 11 and right handle plate 12.

[0034] When using the cutting tool in this embodiment, such as Figure 2-4 As shown, when the counterweight 3 is pushed forward to the position where the first magnetic block is attracted to the front side wall of the counterweight groove 101, the counterweight of the tool handle 1 can be adjusted to a forward position; when the counterweight 3 is pushed backward to the position where the second magnetic block is attracted to the rear side wall of the counterweight groove 101, the counterweight of the tool handle can be adjusted to a rear position; when the tool handle 1 is disassembled, the counterweight 3 is removed, and the tool handle is reassembled, the counterweight of the tool handle 1 can be adjusted to a centered position. The adjustment operation is very convenient.

[0035] Example 3 This embodiment is a further improvement on the adjustable center of gravity tool structure of Embodiment 2. The improvement lies in that, as Figure 1 As shown, partition plates 14 are provided between the left handle plate 11 and the middle handle plate 13 and between the right handle plate 12 and the middle handle plate 13. Each partition plate 14 has a mating hole 141 at the position corresponding to the sliding hole 130. The sliding hole 13, the two mating holes 141 and the two grooves 10 form a counterweight groove 101. The two partition plates 14 separate the handle plates, which can reduce the friction between the handle plates.

[0036] The aforementioned connecting components include a female nail 41 and a male nail 42. The female nail 41 passes through each handle piece and spacer 14 and is threadedly connected to the male nail 42, thus completing the assembly operation of each handle piece and the two spacers. By twisting the male nail 42 to disengage from the female nail 41, each handle piece and spacer 14 can be disassembled and separated, making the disassembly and assembly operation convenient.

[0037] Specifically, the aforementioned female nail 41 includes a nail body 411 and a nail head 412 connected to the nail body 411. The cross-section of the nail body 411 is non-circular, with a flat surface 413 on its side wall, thus making the cross-section of the nail body 411 non-circular. The middle shank 13 has a through hole 131 that matches the cross-sectional shape of the nail body 411. The nail body 411 is placed in the through hole 131, preventing it from rotating within the through hole 131. Since the female nail 41 cannot rotate within the through hole 131, it is easier to screw the female nail 42 into and out of the female nail 41. Furthermore, the aforementioned female nail 42 is a flathead screw. Flathead screws are a commonly used specification, making it convenient for chefs to find a flathead screwdriver to use with the flathead screw, making disassembly and assembly more convenient.

[0038] As a preferred embodiment, the spacer 14 is preferably made of G10 material. G10 material has high strength and is not easily damaged. It also has the characteristics of corrosion resistance and wear resistance, which can better reduce the friction between the spacer 14 and each handle piece. In addition, G10 material has good flexibility. In this way, after the female nail 41 and the male nail 42 are connected, the spacer 14 and each handle piece can fit more tightly and the connection is more stable.

[0039] In this embodiment, the number of spacers 14 between the blades can also be set to multiple. Installing different numbers of spacers 14 will result in different overall widths of the handle 1. This allows for the selection of an appropriate number of spacers 14 based on different users' gripping habits, thereby adjusting the handle 1 to a suitable width for the user's grip and making the grip more comfortable.

[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A tool with an adjustable center of gravity, comprising a tool holder (1) and a blade (2) connected to the tool holder (1), characterized in that: It also includes a counterweight (3). The handle (1) includes a left handle plate (11), a right handle plate (12), and a middle handle plate (13) located between the left handle plate (11) and the right handle plate (12). The rear end of the blade (2) is connected to the front end of the middle handle plate (13). The left handle plate (11), the right handle plate (12), and the middle handle plate (13) are detachably connected by a connecting component. The middle handle plate (13) has a sliding hole (130). The inner sides of the left handle plate (11) and the right handle plate (12) are both provided with grooves (10). The sliding hole (130) The two grooves (10) form a counterweight groove (101) with each other. The counterweight (3) is placed in the counterweight groove (101) and can slide back and forth along the counterweight groove (101). The left handle (11) or / and the right handle (12) are provided with through holes (102) communicating with the counterweight groove (101) on the outside. The counterweight (3) is provided with a first limiting member and a second limiting member. The first limiting member can limit the counterweight (3) to the front end of the counterweight groove (101), while the second limiting member can limit the counterweight (3) to the rear end of the counterweight groove (101).

2. The adjustable center of gravity cutting tool according to claim 1, characterized in that: The first limiting member is a first adsorption member (31) located at the front end of the counterweight (3), and the second limiting member is a second adsorption member (32) located at the rear end of the counterweight (3). When the counterweight (3) is slid to the front end of the counterweight groove (101), the first adsorption member (31) adsorbs onto the corresponding side wall of the counterweight groove (101). When the counterweight (3) is slid to the rear end of the counterweight groove (101), the second adsorption member (32) adsorbs onto the corresponding side wall of the counterweight groove (101).

3. The adjustable center of gravity cutting tool according to claim 2, characterized in that: The first adsorption element (31) is a first magnetic block, the second adsorption element (32) is a second magnetic block, and the front and rear side walls of the counterweight groove (101) are made of metal.

4. The adjustable center of gravity cutting tool according to claim 3, characterized in that: The counterweight (3) has mounting grooves (30) on both the front and rear ends, and the first magnetic block and the second magnetic block are respectively embedded in the mounting grooves (30) on the corresponding sides.

5. The adjustable center of gravity cutting tool according to claim 3, characterized in that: The left handle plate (11) and right handle plate (12) are made of aluminum alloy.

6. The adjustable center of gravity cutting tool according to any one of claims 1-5, characterized in that: A partition (14) is provided between the left handle plate (11) and the middle handle plate (13) and between the right handle plate (12) and the middle handle plate (13). The two partition plates (14) are provided with mating holes (141) at the positions corresponding to the sliding holes (130). The sliding holes (130), the two mating holes (141) and the two grooves (10) form a counterweight groove (101).

7. The adjustable center of gravity cutting tool according to claim 6, characterized in that: The connecting assembly includes a female nail (41) and a female nail (42), with the female nail (41) threaded through each shank and spacer (14) and connected to the female nail (42).

8. The adjustable center of gravity cutting tool according to claim 7, characterized in that: The female nail (41) includes a nail body (411) and a nail head (412) connected to the nail body (411). The cross-section of the nail body (411) is a non-circular structure. The middle shank plate (13) has a through hole (131) that matches the cross-sectional shape of the nail body (411). The nail body (411) is placed in the through hole (131).

9. The adjustable center of gravity cutting tool according to claim 6, characterized in that: The spacer (14) is made of G10 material.

10. The adjustable center of gravity cutting tool according to claim 6, characterized in that: The shank plate (13) and the blade (2) are an integral structure.

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