Easily-shearing blade structure of scissors
By designing the air-avoiding groove and bite plane on the scissor blade, and combining arc twisting and R angle to prevent cuts, the problem of insufficient clinging force of the scissor blade is solved, achieving easier shearing and labor-saving effects, and improving the blade Sharpness and service life.
Patent Information
- Application Number
- CN202323505847.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-21
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2033-12-21
AI Technical Summary
The blades of existing scissors are insufficient to fit during the shearing process, which makes them tiring and not comfortable enough to use.
An easy-to-shear blade structure is designed, in which the inner sides of the first and second blades are formed with air-retardation grooves and occlusion planes to ensure that the blade edge fits closely when shearing and prevents it by arc-shaped twisting design and R-angle Cuts to achieve parallel contact of the blade to reduce wear.
It improves the fit density of the blade, makes shear easier and labor-saving, extends the service life of the blade, and enhances structural strength and aesthetics, providing a better operating experience and market competitiveness.
Smart Images
Figure CN222135041U_ABST
Abstract
Description
Technical field:
[0001] The utility model relates to the technical field of scissors products, in particular to an easy-to-cut blade structure of scissors. Background technology:
[0002] Scissors are a tool commonly used in people's daily life. They are mainly used to cut sheet or linear objects such as cloth, paper, steel plates, ropes, and round steel. They are a double-edged tool with two blades that are staggered and can be opened and closed to cut objects.
[0003] The Chinese utility model patent with patent number ZL202223106006.6 discloses a scissors structure, including a first shearing piece, a second shearing piece and a sliding device, the sliding device includes a connecting pin, a sliding block and a fixed block, the fixed block is fixed to the first shearing piece, a long strip through hole is provided on the fixed block, the first shearing piece is provided with an avoidance hole at a position corresponding to the long strip through hole, the sliding block is provided with a first connecting hole, the second shearing piece is provided with a second connecting hole, the connecting pin passes through the first connecting hole, the long strip through hole, the avoidance hole and the second connecting hole to connect the sliding block, the first shearing piece, the fixed block and the second shearing piece together, the sliding block is provided with a first resistance mechanism, and the fixed block is provided with a second resistance mechanism cooperating with the first resistance mechanism.
[0004] Combined with the above patent (ZL202223106006.6) Figure 1-2 It can be seen that the first shearing piece and the second shearing piece are both flat-plate-shaped, and the surfaces on which the first shearing piece and the second shearing piece are fitted and installed are both complete, smooth planes, so that the blades of the first shearing piece and the second shearing piece are not sufficiently close to each other during the shearing process, resulting in relatively laborious shearing and uncomfortable use.
[0005] In view of this, the inventor proposes the following technical solution. Utility model content:
[0006] The utility model aims to overcome the deficiencies of the prior art and provide an easy-to-cut blade structure of scissors.
[0007] In order to solve the above technical problems, the utility model adopts the following technical scheme: the easy-to-cut blade structure of the scissors includes a first blade and a second blade which are hinged together and can be opened and closed to shear objects, and the first blade and the second blade are respectively provided with a first blade and a second blade which cooperate with each other, and the inner side surfaces of the first blade and the second blade which are in contact with each other are respectively formed with a first avoidance groove and a second avoidance groove, and a first occlusal plane is formed between the opening edge of the first avoidance groove of the first blade and the first blade, and a second occlusal plane is formed between the opening edge of the second avoidance groove of the second blade and the second blade, and in the process of the first blade and the second blade closing to achieve shearing, the first occlusal plane and the second occlusal plane are in contact with and occlude with each other.
[0008] Furthermore, in the above technical solution, the widths of the first occlusal plane and the second occlusal plane are both less than 10 mm.
[0009] Furthermore, in the above technical solution, the widths of the first occlusal plane and the second occlusal plane are both 0.5-1.5 mm.
[0010] Furthermore, in the above technical solution, the widths of the first occlusal plane and the second occlusal plane are both 0.8-1.2 mm.
[0011] Furthermore, in the above technical solution, the widths of the first occlusal plane and the second occlusal plane are both 1.0 mm.
[0012] Furthermore, in the above technical solution, the side of the first blade close to the first blade is twisted along its rear end toward the front end, so that the side edge of the first blade is twisted and protrudes outside the inner surface of the first blade; the side of the second blade close to the second blade is twisted along its rear end toward the front end, so that the side edge of the second blade is twisted and protrudes outside the inner surface of the second blade.
[0013] Furthermore, in the above technical solution, the radius of the arc of the twisting of one side of the first blade is 120-150 mm; the radius of the arc of the twisting of one side of the second blade is 120-150 mm.
[0014] Furthermore, in the above technical solution, the radius of the arc of the twisting on one side of the first blade is 137 mm; the radius of the arc of the twisting on one side of the second blade is 137 mm.
[0015] Furthermore, in the above technical solution, a first R angle is provided on the other side of the first blade relative to the first blade edge to prevent cutting of a human body; a second R angle is provided on the other side of the second blade relative to the second blade edge to prevent cutting of a human body.
[0016] Furthermore, in the above technical solution, the first blade and the second blade have the same structure; the outer surfaces of the first blade and the second blade are both set to be flat surfaces without bumps and depressions.
[0017] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art: the inner side surfaces where the first blade and the second blade are in contact with each other are respectively formed with the first avoidance groove and the second avoidance groove, so that the area of the inner side surfaces where the first blade and the second blade are in contact with each other becomes smaller, thereby ensuring that the first blade and the second blade are in contact with each other more closely, cutting is relatively more laborious, and it is easier to cut objects, making it more comfortable to use. In addition, a first occlusal plane is formed between the opening edge of the first avoidance groove of the first blade and the first blade, and a second occlusal plane is formed between the opening edge of the second avoidance groove of the second blade and the second blade. In the process of the first blade and the second blade closing to achieve shearing, the first occlusal plane and the second occlusal plane are mutually attached and occluded to achieve surface contact, so that the spiked parts of the first blade and the second blade are parallel and attached to contact to achieve shearing, which can avoid direct crossing / non-parallel contact between the spiked parts of the first blade and the second blade, resulting in excessive bite force and wear of the first blade and the second blade, thereby ensuring that the spiked parts of the first blade and the second blade are not easily worn, and the sharpness is improved, so that it is easier to cut objects when the spiked parts of the first blade and the second blade are closed, and it is more labor-saving, smoother to operate, and has a better feel, making the utility model highly competitive in the market. Description of the drawings:
[0018] Figure 1 It is a three-dimensional diagram of the utility model;
[0019] Figure 2 It is a stereogram of another viewing angle of the utility model;
[0020] Figure 3 It is a three-dimensional exploded view of the utility model;
[0021] Figure 4 It is a three-dimensional diagram of the second blade in the utility model;
[0022] Figure 5 yes Figure 1 Section view along AA direction;
[0023] Figure 6 yes Figure 5 Exploded diagram of
[0024] Figure 7 This is a state diagram of the first and second blades of the utility model being relatively closed to perform a shearing action. Specific implementation method:
[0025] The utility model is further described below in conjunction with specific embodiments and drawings.
[0026] See Figure 1-7As shown, a kind of easy-to-cut blade structure of scissors is a main component of the scissors, which includes a first blade 1 and a second blade 2 which are hinged together and can be opened and closed to cut objects, wherein the first blade 1 and the second blade 2 are respectively provided with corresponding first axial holes and second axial holes, and an axial body or a rivet is passed through the first axial hole and the second axial hole to hinge the first blade 1 and the second blade 2 together so as to be able to open and close, and the first blade 1 and the second blade 2 are respectively provided with a first blade 11 and a second blade 21 which cooperate with each other, and the first blade 11 and the second blade 21 cooperate to cut the object, thereby realizing the shearing function.
[0027] The inner side surfaces where the first blade 1 and the second blade 2 fit together are respectively formed with a first avoidance groove 12 and a second avoidance groove 22, so that the area of the inner side surfaces where the first blade 1 and the second blade 2 fit together becomes smaller, thereby ensuring that the first blade 11 and the second blade 21 fit more closely, cutting is relatively more laborious, and it is easier to cut objects, making it more comfortable to use. In addition, a first occlusal plane 10 is formed between the opening edge of the first avoidance groove 12 of the first blade 1 and the first blade 11, and a second occlusal plane 20 is formed between the opening edge of the second avoidance groove 22 of the second blade 2 and the second blade 21. In the process of the first blade 1 and the second blade 2 closing to achieve shearing, the first occlusal plane 10 and the second occlusal plane 20 are mutually attached and occluded to achieve surface contact, so that the spiked parts of the first blade 11 and the second blade 21 are parallel and attached to each other to achieve shearing, which can avoid the direct crossing / non-parallel contact between the spiked parts of the first blade 11 and the second blade 21, resulting in excessive bite force and wear of the first blade 11 and the second blade 21, thereby ensuring that the spiked parts of the first blade 11 and the second blade 21 are not easily worn, and the sharpness is improved, so that it is easier to shear objects during the closing of the spiked parts of the first blade 11 and the second blade 21, and it is more labor-saving, smoother to operate, and has a better feel, making the utility model have extremely strong market competitiveness.
[0028] The width of the first occlusal plane 10 and the second occlusal plane 20 are both less than 10 mm. Within this range, the width of the inner side of the first blade 1 and the second blade 2 will be relatively large. If narrow-surface scissors are required, the width of the first occlusal plane 10 and the second occlusal plane 20 needs to be designed to be smaller. For example, the width of the first occlusal plane 10 and the second occlusal plane 20 are both 0.5-1.5 mm. More preferably, the width of the first occlusal plane 10 and the second occlusal plane 20 are both 0.8-1.2 mm. The widths of the first occlusal plane 10 and the second occlusal plane 20 are both 1.0 mm. Of course, they can also be 0.8 mm or 1.2 mm, and the differences are not large. However, the optimal solution is: the widths of the first occlusal plane 10 and the second occlusal plane 20 are both 1.0 mm, and the areas they occupy on the inner side surfaces of the first blade 1 and the second blade 2 are relatively small, so that under the condition of minimizing the contact area of the inner side surfaces of the first blade 1 and the second blade 2, the widths of the first occlusal plane 10 and the second occlusal plane 20 are set to be smaller, which can ensure that the first blade 1 and the second blade 2 can be better opened and closed, and at the same time, it can ensure that the spiked parts of the first blade 11 and the second blade 21 are in parallel contact, which is not easy to be worn and improves sharpness, so that it is easier to shear objects during the closing process of the spiked parts of the first blade 11 and the second blade 21.
[0029] The first occlusal plane 10 and the second occlusal plane 20 also act as reinforcing ribs, ensuring that the first blade 1 and the second blade 2 have better structural strength and longer service life.
[0030] The side of the first blade 1 close to the first blade 11 is twisted along its rear end toward the front end, so that the side of the first blade 11 is twisted and protrudes outside the inner side surface of the first blade 1; the side of the second blade 2 close to the second blade 21 is twisted along its rear end toward the front end, so that the side of the second blade 21 is twisted and protrudes outside the inner side surface of the second blade 2, so that the closer the first blade 1 and the second blade 2 are to the tip (i.e. the front end), the tighter the fit between the first blade 1 and the second blade 2 is, so that the tip of the first blade 1 and the second blade 2 can also easily cut objects, making it more convenient to use. Wherein, the arc radius of the twist of one side of the first blade 11 is 120-150mm; the arc radius of the twist of one side of the second blade 21 is 120-150mm. Preferably: the arc radius of the twist of one side of the first blade 11 is 137mm; the arc radius of the twist of one side of the second blade 21 is 137mm.
[0031] The first blade 1 is provided with a first R angle 13 on the other side (i.e., the back part) of the blade relative to the first blade 11 for preventing cuts to the human body; the second blade 2 is provided with a second R angle 23 on the other side (i.e., the back part) of the blade relative to the second blade 21 for preventing cuts to the human body. Through the design of the first R angle 13 and the second R angle 23, it can effectively prevent the first blade 1 and the second blade 2 from cutting the human body, meets the requirements of non-functional sharp design, and is safer to use, especially when used by children and teenagers, it can effectively avoid cutting the human body.
[0032] The first blade 1 and the second blade 2 have the same structure, and are easier to manufacture, saving mold making costs. The outer surfaces of the first blade 1 and the second blade 2 are both set to be flat surfaces without bumps and depressions, and their appearance is more beautiful.
[0033] To sum up, the inner side surfaces where the first blade 1 and the second blade 2 fit together are respectively formed with a first avoidance groove 12 and a second avoidance groove 22, so that the area of the inner side surfaces where the first blade 1 and the second blade 2 fit together is reduced, thereby ensuring that the first blade 11 and the second blade 21 fit more closely, cutting is relatively more laborious, and it is easier to cut objects, making it more comfortable to use. In addition, a first occlusal plane 10 is formed between the opening edge of the first avoidance groove 12 of the first blade 1 and the first blade 11, and a second occlusal plane 20 is formed between the opening edge of the second avoidance groove 22 of the second blade 2 and the second blade 21. In the process of the first blade 1 and the second blade 2 closing to achieve shearing, the first occlusal plane 10 and the second occlusal plane 20 are mutually attached and occluded to achieve surface contact, so that the spiked parts of the first blade 11 and the second blade 21 are parallel and attached to each other to achieve shearing, which can avoid the direct crossing / non-parallel contact between the spiked parts of the first blade 11 and the second blade 21, resulting in excessive bite force and wear of the first blade 11 and the second blade 21, thereby ensuring that the spiked parts of the first blade 11 and the second blade 21 are not easily worn, and the sharpness is improved, so that it is easier to shear objects during the closing of the spiked parts of the first blade 11 and the second blade 21, and it is more labor-saving, smoother to operate, and has a better feel, making the utility model have extremely strong market competitiveness.
[0034] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structure, characteristics and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.
Claims
1. A scissors easy-to-cut blade structure, comprising a first blade (1) and a second blade (2) which are hinged together and can be opened and closed to cut an object, and the first blade (1) and the second blade (2) are respectively provided with a first blade edge (11) and a second blade edge (21) which cooperate with each other, characterized in that: The inner side surfaces of the first blade (1) and the second blade (2) that are in contact with each other are respectively formed with a first avoidance groove (12) and a second avoidance groove (22), and a first occlusal plane (10) is formed between an opening edge of the first avoidance groove (12) of the first blade (1) and the first blade (11), and a second occlusal plane (20) is formed between an opening edge of the second avoidance groove (22) of the second blade (2) and the second blade (21), and in the process of the first blade (1) and the second blade (2) being closed to achieve shearing, the first occlusal plane (10) and the second occlusal plane (20) are in contact with each other and occluded.
2. The easy-to-cut blade structure of scissors according to claim 1, characterized in that: The widths of the first occlusal plane (10) and the second occlusal plane (20) are both less than 10 mm.
3. The easy-to-cut blade structure of scissors according to claim 2, characterized in that: The widths of the first occlusal plane (10) and the second occlusal plane (20) are both 0.5-1.5 mm.
4. The easy-to-cut blade structure of scissors according to claim 3, characterized in that: The widths of the first occlusal plane (10) and the second occlusal plane (20) are both 0.8-1.2 mm.
5. The easy-to-cut blade structure of scissors according to claim 4, characterized in that: The widths of the first occlusal plane (10) and the second occlusal plane (20) are both 1.0 mm.
6. The easy-to-cut blade structure of scissors according to any one of claims 1 to 5, characterized in that: The side of the first blade (1) close to the first blade (11) is twisted along its rear end toward the front end, so that the side edge of the first blade (11) is twisted and protrudes outside the inner side surface of the first blade (1); the side of the second blade (2) close to the second blade (21) is twisted along its rear end toward the front end, so that the side edge of the second blade (21) is twisted and protrudes outside the inner side surface of the second blade (2).
7. The easy-to-cut blade structure of scissors according to claim 6, characterized in that: The radius of the twisted arc on one side of the first blade (11) is 120-150 mm; the radius of the twisted arc on one side of the second blade (21) is 120-150 mm.
8. The easy-to-cut blade structure of scissors according to claim 7, characterized in that: The radius of the twisted arc on one side of the first blade (11) is 137 mm; the radius of the twisted arc on one side of the second blade (21) is 137 mm.
9. The easy-to-cut blade structure of scissors according to any one of claims 1 to 5, characterized in that: The first blade (1) is provided with a first R angle (13) on the other side of the first blade edge (11) for preventing cuts to a human body; the second blade (2) is provided with a second R angle (23) on the other side of the second blade edge (21) for preventing cuts to a human body.
10. The easy-to-cut blade structure of scissors according to claim 5, characterized in that: The first blade (1) and the second blade (2) have the same structure; the outer surfaces of the first blade (1) and the second blade (2) are both arranged to be flat surfaces without bumps or depressions.