CN213562709U - Novel blade structure - Google Patents
Novel blade structure Download PDFInfo
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- CN213562709U CN213562709U CN202022494832.7U CN202022494832U CN213562709U CN 213562709 U CN213562709 U CN 213562709U CN 202022494832 U CN202022494832 U CN 202022494832U CN 213562709 U CN213562709 U CN 213562709U
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- blade part
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- shearing
- convex arc
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Abstract
The utility model discloses a novel blade structure, which comprises a first blade and a second blade which are hinged with each other, wherein the opposite edges of the first blade and the second blade are respectively provided with a first knife edge part and a second knife edge part which are used for matching with and shearing articles, and the second knife edge part is horizontal; the first blade part comprises a straight section and a convex arc section which are integrally connected, the straight section starts from the root of the first blade part, and the length of the straight section is 2/3 the length of the first blade part; the convex arc section is 1/3 of the first blade part and extends to the tip of the first blade part; in the shearing process of the first blade and the second blade, the angle of a shearing angle formed between the straight section of the first blade part and the second blade part is more than 45 degrees; the angle of the shearing angle formed between the convex arc section of 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 shear angle that forms between first cutting edge portion and the second cutting edge portion remains throughout more than 30, can realize laborsaving easy purpose of cuting.
Description
The technical field is as follows:
the utility model relates to a scissors product technical field refers in particular to a novel blade structure.
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 novel blade structure.
In order to solve the technical problem, the utility model discloses a following technical scheme: the novel blade structure comprises a first blade and a second blade which are hinged together, wherein the opposite edges of the first blade and the second blade are respectively provided with a first blade part and a second blade part which are used for matching with a sheared object, and the second blade part is horizontal; the first blade part comprises a straight section and a convex arc section which are integrally connected, the straight section starts from the root of the first blade part, and the length of the straight section is 2/3 the length of the first blade part; the convex arc section is 1/3 of the first blade part and extends to the tip of the first blade part; in the shearing process of the first blade and the second blade, the angle of a shearing angle formed between the straight section of the first blade part and the second blade part is more than 45 degrees; the angle of the shearing angle formed between the convex arc section of 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 convex arc section of the first blade portion and the second blade portion is 38-42 °.
Further, in the above technical solution, the line shape of the convex arc section in the first blade portion 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 set up the second cutting edge portion of second blade horizontal form, and first cutting edge portion sets up two parts of an organic whole connection, be respectively for occupying the straight section that is 2/3 and occupying the convex arc section that is 2/3, and this straight section begins at the root of first cutting edge portion, in first blade and the shearing process of second blade, the angle of the shear angle that forms between the straight section of this first cutting edge portion and the second cutting edge portion is greater than 45 degrees; the angle of a shearing angle formed between the convex arc section of the first blade part and the second blade part is 30-45 degrees, the angle of the shearing angle formed between the straight section of the first blade part and the second blade part is more than 45 degrees, the straight section is close to a hinge point of the first blade and the second blade, and a force application force arm of the scissors is more than a resistance force arm of the scissors, so that the scissors are more labor-saving and easier to shear, the whole first blade part is not required to be provided with a convex arc, and the first blade is more convenient to manufacture; additionally, the utility model discloses at the in-process of shearing, the angle of the shearing angle that forms between the convex arc section of first cutting edge portion and the second cutting edge portion remains throughout at 30-45, and its angle is greater than in the conventional scissors angle (being less than 20) of two cutting edges after 2/3 positions, especially is close the region of knife tip, and the optional position of first cutting edge portion and second cutting edge portion all can be relaxed shears products such as corrugated paper, cladding, and it is very convenient to use to have extremely strong market competition.
Description of the drawings:
fig. 1 is a front view of the present invention;
fig. 2 is an exploded view of the present invention;
fig. 3 is a left side view of a first blade of the present invention;
fig. 4 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. 1-4, the blade structure includes a first blade 1 and a second blade 2 hinged to each other, opposite edges of the first blade 1 and the second blade 2 are respectively provided with a first blade portion 11 and a second blade portion 21 for matching with an object to be cut, and the second blade portion 21 is horizontal; the first blade part 11 comprises a straight section 111 and a convex arc section 112 which are integrally connected, wherein the straight section 111 starts from the root of the first blade part 11 and has a length of 2/3 of the length of the first blade part 11; the convex arc section 112 is 1/3 of the first blade 11 and extends to the tip of the first blade 11; in the shearing process of the first blade 1 and the second blade 2, the angle of a shearing angle formed between the straight section 111 of the first blade part 11 and the second blade part 21 is more than 45 degrees; the angle of the shearing angle formed between the convex arc section 112 of the first blade part 11 and the second blade part 21 is 30-45 °. The utility model discloses set up the second cutting edge portion 21 of second blade 2 into horizontal form, and first cutting edge portion 11 sets up two parts of an organic whole connection, be respectively for occupying to compare the straight section 111 that is 2/3 and occupying to compare the convex arc section 112 that is 2/3, and this straight section 111 begins the root of first cutting edge portion 11, in first blade 1 and the shearing process of second blade 2, the angle of the shearing angle that forms between the straight section 111 of this first cutting edge portion 11 and second cutting edge portion 21 is greater than 45 degrees; the angle of the shearing angle formed between the convex arc section 112 of the first blade part 11 and the second blade part 21 is 30-45 degrees, the angle of the shearing angle formed between the straight section 111 of the first blade part 11 and the second blade part 21 is more than 45 degrees, the straight section 111 is close to the hinge point of the first blade 1 and the second blade 2, and the force application force arm of the scissors is more than the resistance force arm of the scissors, so that the shearing is more labor-saving and easier, the whole first blade part 11 is not required to be provided with a convex arc, and the first blade 1 is more convenient to manufacture; in addition, the utility model discloses at the in-process of shearing, the angle of the shear angle that forms between convex arc section 112 of first blade portion 11 and second blade portion 21 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, and first blade portion 11 and the arbitrary position of second blade portion 21 all can be light cut products such as corrugated paper, cladding, use very convenient to extremely strong market competition has.
The angle of the shearing angle formed between the convex arc section 112 of the first blade part 11 and the second blade part 21 is 38-42 °. The line shape of the convex arc section 112 in the first blade part 11 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, 1/3 at the tip of the first blade part 11 directly takes a linear shape in the archimedean spiral, as shown in fig. 3.
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 sets the second blade portion 21 of the second blade 2 to be horizontal, and the first blade portion 11 is set to be two integrally connected parts, namely a straight section 111 occupying 2/3 and a convex arc section 112 occupying 2/3, respectively, and the straight section 111 starts from the root of the first blade portion 11, and the angle of the shearing angle formed between the straight section 111 of the first blade portion 11 and the second blade portion 21 is greater than 45 degrees in the shearing process of the first blade 1 and the second blade 2; the angle of the shearing angle formed between the convex arc section 112 of the first blade part 11 and the second blade part 21 is 30-45 degrees, the angle of the shearing angle formed between the straight section 111 of the first blade part 11 and the second blade part 21 is more than 45 degrees, the straight section 111 is close to the hinge point of the first blade 1 and the second blade 2, and the force application force arm of the scissors is more than the resistance force arm of the scissors, so that the shearing is more labor-saving and easier, the whole first blade part 11 is not required to be provided with a convex arc, and the first blade 1 is more convenient to manufacture; in addition, the utility model discloses at the in-process of shearing, the angle of the shear angle that forms between convex arc section 112 of first blade portion 11 and second blade portion 21 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, and first blade portion 11 and the arbitrary position of second blade portion 21 all can be light cut products such as corrugated paper, cladding, use very convenient to extremely strong market competition has.
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 novel blade structure comprises a first blade (1) and a second blade (2) which are hinged together, wherein the opposite edges of the first blade (1) and the second blade (2) are respectively provided with a first blade part (11) and a second blade part (21) which are used for matching with a sheared object,
the method is characterized in that:
the second blade part (21) is horizontal;
the first blade part (11) comprises a straight section (111) and a convex arc section (112) which are integrally connected, and the straight section (111) starts from the root of the first blade part (11) and has the length of 2/3 which is the length of the first blade part (11); the convex arc section (112) is 1/3 of the first blade part (11) and extends to the tip of the first blade part (11); in the shearing process of the first blade (1) and the second blade (2), the angle of a shearing angle formed between the straight section (111) of the first blade part (11) and the second blade part (21) is more than 45 degrees; the angle of the shearing angle formed between the convex arc section (112) of the first blade part (11) and the second blade part (21) is 30-45 degrees.
2. The novel blade construction of claim 1 wherein: the angle of a shearing angle formed between the convex arc section (112) of the first blade part (11) and the second blade part (21) is 38-42 degrees.
3. The novel blade construction of claim 1 wherein: the line shape of the convex arc section (112) in the first blade part (11) is an Archimedes spiral.
4. A novel blade construction according to any one of claims 1-3 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 novel blade construction 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 |
|---|---|---|---|
| CN202022494832.7U CN213562709U (en) | 2020-11-02 | 2020-11-02 | Novel blade structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022494832.7U CN213562709U (en) | 2020-11-02 | 2020-11-02 | Novel blade structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213562709U true CN213562709U (en) | 2021-06-29 |
Family
ID=76533137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022494832.7U Active CN213562709U (en) | 2020-11-02 | 2020-11-02 | Novel blade structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213562709U (en) |
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2020
- 2020-11-02 CN CN202022494832.7U patent/CN213562709U/en active Active
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