CN213890094U - Blade structure capable of saving labor and being easily sheared - Google Patents
Blade structure capable of saving labor and being easily sheared Download PDFInfo
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- CN213890094U CN213890094U CN202022494738.1U CN202022494738U CN213890094U CN 213890094 U CN213890094 U CN 213890094U CN 202022494738 U CN202022494738 U CN 202022494738U CN 213890094 U CN213890094 U CN 213890094U
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Abstract
The utility model discloses a labor-saving and easily-shearing blade structure, which comprises a first blade and a second blade which are hinged together, wherein the lower end of the first blade is provided with a first blade part which protrudes downwards and is in a convex arc shape; the upper end of the second blade is provided with a second blade part in a horizontal shape; in the shearing process of the first blade and the second blade, the angle of a shearing angle formed between the first blade part and the second blade part is 30-45 degrees. The utility model discloses at the in-process of shearing, the angle of the shearing angle that forms between first cutting edge portion and the second cutting edge portion remains throughout at 30-45, and its angle is greater than the angle (being less than 20 °) of two cutting edges after 2/3 positions in the conventional scissors, promptly the utility model discloses on the basis of the relation of the force application arm of force that need not consider the scissors and the resistance arm of force of scissors, also can realize laborsaving easy purpose of cuting, products such as shearing corrugated paper, cladding that the optional position of first cutting edge portion and second cutting edge portion can all relax use very conveniently.
Description
The technical field is as follows:
the utility model relates to a blade structure that the scissors product technical field refers in particular to a laborsaving easy shearing.
Background art:
the scissors are a commonly used tool, and the commonly used scissors include two blade that articulate each other and install in the handle of this blade rear end, and the relative one side of two blades all is formed with the cutting edge, when using, grips the handle after, realizes opening or closing of blade through opening and shutting of drive handle, forms the shearing force between two cutting edges in the blade closure process, cuts corresponding article. The hinged point of the two blades is used as a pivot, the connecting points of the blades of the two blades form a shearing angle, and the shearing angle is continuously reduced in the shearing process of the scissors. According to the lever principle, at the initial stage of shearing, the distance between the contact point of the cutting edge and the fulcrum is short, the force application arm of force is larger than the resistance arm of force, and the shearing is relatively easy. With the continuous shearing, the shearing angle is continuously reduced, the distance between the blade connecting point and the fulcrum is gradually increased, the force application force arm is inconvenient to keep, and the shearing is gradually hard. That is, people usually prefer to place the cut object near the fulcrum to start cutting during the use of the scissors.
In the prior art, the cutting edges of the two blades in the scissors are all linear, that is, when the cutting edges of the two blades are at the position of the cutting edge 2/3 in the cutting process, the cutting angles formed by the connection points of the cutting edges of the two blades are all smaller than 20 °, and then are continuously reduced to 0 °, at which time the two blades are overlapped. However, when people use scissors to cut articles, the positions of the blades 2/3-1/3 are generally used, but the cutting angle of the blade is less than 20 degrees, so that the cutting is gradually laboured, the use is inconvenient, and the use requirement of consumers cannot be met.
In view of the above, the present inventors propose the following.
The utility model has the following contents:
an object of the utility model is to overcome prior art not enough, provide a blade structure of laborsaving easy shearing.
In order to solve the technical problem, the utility model discloses a following technical scheme: the labor-saving and easily-shearing blade structure comprises a first blade and a second blade which are hinged together, wherein the lower end of the first blade is provided with a first blade part which protrudes downwards and is in a convex arc shape; the upper end of the second blade is provided with a second blade part in a horizontal shape; in the shearing process of the first blade and the second blade, the angle of a shearing angle formed between the first blade part and the second blade part is 30-45 degrees.
Further, in the above technical solution, an angle of a shear angle formed between the first blade portion and the second blade portion is 38 to 42 °.
Further, in the above technical solution, a line shape of the first blade portion extending from the root portion to the tip portion thereof is an archimedean spiral.
Further, in the above-described aspect, the shape of the first blade tip is the same as the shape of the second blade tip.
Further, in the above technical solution, the shape of the front end of the first blade and the shape of the front end of the second blade are both crescent-shaped.
After the technical scheme is adopted, compared with the prior art, the utility model has following beneficial effect: the utility model discloses have downward protrusion and be the first blade portion of convex arc shape in first blade lower extreme, second blade upper end has the second blade portion that is the level form, so that this first blade and second blade articulated back together each other, the angle of the shearing angle that forms between this first blade portion and the second blade portion keeps between 30-45 scope, that is to say, the utility model discloses in the in-process of cuting, the angle of the shearing angle that forms between first blade portion and the second blade portion remains throughout at 30-45, and its angle is greater than the angle (being less than 20 °) of two cutting edges after 2/3 positions in the conventional scissors, especially is close the region of knife tip, promptly the utility model discloses on the basis of the relation of the force application arm of force that need not consider scissors and the resistance arm of force of scissors, also can realize laborsaving easy purpose of cuting, the shearing corrugated paper that the optional position of first blade portion and second blade portion all can relax, The leather and other products are very convenient to use and have very strong market competitiveness.
Description of the drawings:
fig. 1 is a perspective view of the present invention;
fig. 2 is an exploded perspective view of the present invention;
fig. 3 is a front view of the present invention;
fig. 4 is a left side view of a first blade of the present invention;
fig. 5 is a diagram of the shearing process of the present invention.
The specific implementation mode is as follows:
the present invention will be further described with reference to the following specific embodiments and accompanying drawings.
As shown in fig. 1-5, the blade structure is a labor-saving and easy-to-cut blade structure, which comprises a first blade 1 and a second blade 2 hinged together, wherein the lower end of the first blade 1 is provided with a first blade part 11 which protrudes downwards and is in a convex arc shape; the upper end of the second blade 2 is provided with a second blade part 21 in a horizontal shape; during the shearing process of the first blade 1 and the second blade 2, the angle of the shearing angle formed between the first blade part 11 and the second blade part 21 is 30-45 degrees. The utility model has a downward convex first blade part 11 at the lower end of the first blade 1 and a convex arc second blade part 21 at the upper end of the second blade 2, so that after the first blade 1 and the second blade 2 are hinged together, the angle of the shearing angle formed between the first blade part 11 and the second blade part 21 is kept between 30-45 degrees, that is, the angle of the shearing angle formed between the first blade part 11 and the second blade part 21 is always kept between 30-45 degrees in the shearing process, the angle is larger than the angle (less than 20 degrees) of the two blades after 2/3 positions in the conventional scissors, especially the area close to the blade tip, namely, the utility model can also realize the purpose of labor saving and easy shearing on the basis of not considering the relation between the force application force arm of the scissors and the resistance force arm of the scissors, the first blade part 11 and the second blade part 21 can easily cut corrugated paper, leather and other products at any position, and the cutting tool is very convenient to use and has strong market competitiveness. Of course, the closer the intersection point of the first blade part 11 and the second blade part 21 is to the hinge point of the first blade 1 and the second blade 2, the more labor-saving and easier the shearing is.
The angle of the shearing angle formed between the first blade part 11 and the second blade part 21 is 38-42 °. Wherein, the linear shape of the first blade part 11 extending from the root to the tip is an Archimedes spiral, and the angle of the Archimedes spiral and the tangent angle of the straight line is 38-42 degrees.
When the first blade part 11 of the first blade 1 is manufactured, a section of line shape is directly taken on the archimedean spiral, which is specifically shown in fig. 4.
The shape of the front end of the first blade 1 is the same as that of the front end of the second blade 2. The shape of the front end of the first blade 1 and the shape of the front end of the second blade 2 are both crescent, so that after the front ends of the first blade 1 and the second blade 2 are completely closed, the front ends of the first blade 1 and the second blade 2 are completely overlapped together, the appearance is more attractive, and the design of a sheath is facilitated.
To sum up, the present invention has a first blade 11 protruding downwards and having a convex arc shape at the lower end of the first blade 1, and a second blade 21 having a horizontal shape at the upper end of the second blade 2, so that after the first blade 1 and the second blade 2 are hinged together, the angle of the shearing angle formed between the first blade 11 and the second blade 21 is maintained between 30-45 °, i.e. the present invention, during the shearing process, the angle of the shearing angle formed between the first blade 11 and the second blade 21 is always maintained between 30-45 °, which is larger than the angle (smaller than 20 °) of the two blades after 2/3 position in the conventional scissors, especially the area close to the blade tip, i.e. the present invention can also achieve the purpose of labor saving and easy shearing without considering the relationship between the force arm of the scissors and the resistance force arm of the scissors, the first blade part 11 and the second blade part 21 can easily cut corrugated paper, leather and other products at any position, and the cutting tool is very convenient to use and has strong market competitiveness. Of course, the closer the intersection point of the first blade part 11 and the second blade part 21 is to the hinge point of the first blade 1 and the second blade 2, the more labor-saving and easier the shearing is.
Of course, the above description is only an exemplary embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes and modifications made by the constructions, features, and principles of the present invention in accordance with the claims of the present invention are intended to be included in the scope of the present invention.
Claims (5)
1. A laborsaving easy blade structure of cuting, its includes first blade (1) and second blade (2) that mutually articulate together, its characterized in that:
the lower end of the first blade (1) is provided with a first blade part (11) which protrudes downwards and is in a convex arc shape;
the upper end of the second blade (2) is provided with a second blade part (21) which is horizontal;
in the shearing process of the first blade (1) and the second blade (2), the angle of a shearing angle formed between the first blade part (11) and the second blade part (21) is 30-45 degrees.
2. The power saving easy-to-cut blade structure of claim 1, wherein: the angle of a shearing angle formed between the first blade part (11) and the second blade part (21) is 38-42 degrees.
3. The power saving easy-to-cut blade structure of claim 1, wherein: the linear shape of the first blade part (11) extending to the tip part along the root part is an Archimedes spiral.
4. A power saving easy cutting blade structure according to any one of claims 1 to 3, wherein: the shape of the front end of the first blade (1) is the same as that of the front end of the second blade (2).
5. The labor-saving easy-to-cut blade structure of claim 4, wherein: the shape of the front end of the first blade (1) and the shape of the front end of the second blade (2) are both crescent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022494738.1U CN213890094U (en) | 2020-11-02 | 2020-11-02 | Blade structure capable of saving labor and being easily sheared |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022494738.1U CN213890094U (en) | 2020-11-02 | 2020-11-02 | Blade structure capable of saving labor and being easily sheared |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213890094U true CN213890094U (en) | 2021-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022494738.1U Active CN213890094U (en) | 2020-11-02 | 2020-11-02 | Blade structure capable of saving labor and being easily sheared |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213890094U (en) |
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2020
- 2020-11-02 CN CN202022494738.1U patent/CN213890094U/en active Active
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