TWM591908U - Curve Scissors - Google Patents

Abstract

A curved scissors, which is provided with a blade group and a handle group, wherein the blade portions of the two bodies respectively form a cutting edge on the facing inner side, and each cutting edge is provided with at least one curved group, the at least A curve group is formed on the outer contour of the cutting edge, and includes two curves with two centers of curvature located on both sides of the cutting edge respectively, so that the at least one curve group forms a continuous curved extending wave on the cutting edge Shaped curve, the joint of each body is connected to the rear end of the blade and extends downward, and the pivot is combined with the two bodies and is located between the blade and the joint of each body. The blade set is combined and provided with two grips, which are respectively combined with the joints of the two bodies to provide a curved scissors which is labor-saving, non-slip, easy to use and can improve the cutting effect.

Description

Curve Scissors

This creation relates to a pair of scissors, especially a curved scissors that is labor-saving, non-slip, easy to use and can improve the cutting effect.

Scissors are one of the indispensable hand tools in daily life. Through the use of scissors, users can cut, trim or trim objects. Among them, they can be divided into medical surgery, general office, Plant trimming, tailoring and other different types of scissors.

Existing scissors, such as the office scissors disclosed in Taiwan Invention Patent No. I608914, although they can be curved in an arc through the blade body, the blade base shrinks to form a stepped portion, and the back of the blade body forms a curve along the curved blade The face groove achieves the effect of easily cutting the object and preventing the glue from adhering to the blade during the cutting process, but the opening angle of the tip of the blade is slightly smaller, and a large force must be applied to open the handle when cutting The larger range allows the existing scissors to have a large opening between the inner sides of the tops of the two blades, which is more laborious for the user, and when the user repeatedly opens and closes the handle to cut for a long time, it will be easy Excessive effort may cause fatigue or soreness in the hands, increasing the inconvenience in use.

Further, the inner side of the two blades of the existing scissors is a continuous arc curve from the front end to the rear end, because the intersection of the two blades at the rear end has a very small shear opening due to the arc curve, although it can cut thinner Paper or other objects, but the inner side of the two blades of the existing scissors is wider at the rear end. When you want to cut thick paper or hard objects (especially rod-shaped objects), you may go to the top of the blade Sliding, which greatly reduces the shearing force, and requires considerable or more effort to complete the shearing operation. It is relatively difficult to use. For users who need to repeatedly cut for a long time, the hands are prone to fatigue Or sore; in summary, the existing scissors have the phenomenon that the opening between the front ends of the two blades is small and the cutting force between the rear ends of the two blades is limited, which makes the existing scissors laborious and difficult to cut thick and hard The problem of material objects really needs to be improved.

Therefore, in this creation, in view of the actual use of the existing scissors, due to the small opening between the front ends of the two blades and the limited shearing force between the rear ends of the two blades, the existing scissors are laborious to use and cannot easily cut thick The lack and insufficiency of hard material objects, after continuous experimentation and research, finally developed a kind of original creation that can improve the existing lack. The curved scissors of this creation are mainly through a simplified structure configuration method, which can not only be used by The way of opening and closing the two grips by a small amount allows a large angle opening between the front ends of the two blades, which can easily and finely complete fine cutting, and can be set by the structure of the second half of the two blades. The smaller force exerts the effect of cutting thick and hard materials, greatly increasing the cutting force of the two blades, and effectively improves the problem that the existing scissors are laborious and cannot cut thick and hard materials easily, thereby providing a labor-saving, non-slip, easy to use And the purpose of curve scissors that can improve the cutting effect.

Based on the above purpose, this creative department is to provide a curved scissors, which is equipped with a blade group and a grip group, in which: The blade set is provided with two bodies and a pivoting member, wherein each body has a blade part and a joint part, the blade parts of the two bodies form a cutting edge on the inner side facing each other. At least one curve group is formed on the outer contour line, the at least one curve group includes two curves, the centers of curvature of the two curves are respectively located on both sides of the cutting edge, so that the at least one curve group forms a continuous curve on the cutting edge An extended curve, the joint portion of each body is connected to the rear end of the blade portion and extends downward, and the pivot member is combined with the two bodies and is located between the blade portion and the joint portion of each body; and The grip set is combined with the blade set and provided with two grips, which are respectively combined with the joint parts of the two bodies.

Further, as in the aforementioned curved scissors, the two curves of at least one curve group of each cutting edge are respectively a first curve and a second curve, and the first curve is from the front end of the cutting edge toward the rear end Extending, and the second curve is connected to the first curve and continues from the end of the first curve to the rear end of the cutting edge: wherein the length of the first curve is greater than the length of the second curve, Preferably, the ratio of the length of the two curves to the total length of the two curves is 7:3.

Still further, as in the aforementioned curved scissors, the cutting edge of the blade portion of each body has two curve groups, the two curve groups are continuously formed on the outer contour of the cutting edge, and each curve group includes a first The curve and a second curve form a first curve and a second curve on the cutting edge from the front end to the rear end in sequence, and the two curves together form a wavy curve.

Furthermore, as in the curved scissors described above, each blade portion is sharper at the second curve than at the first curve.

其中-2.5≦s≦π，0.1≤m≤10，且θ為角度值，s為座標變數，m為曲率變數，當θ為97、m為6時，該曲線組具有最佳剪切曲率。 Preferably, the curved scissors as described above, wherein the curve group of each cutting edge has a curve equation:

Where -2.5≦s≦π, 0.1≦m≦10, and θ is the angle value, s is the coordinate variable, m is the curvature variable, and when θ is 97 and m is 6, the curve group has the best shear curvature.

With the above-mentioned technical means, this creative curve scissors has at least the following advantages and effects: 1. Fine cutting: the curvilinear scissors of this creation set at least one curve group through the cutting edges of each blade part, and can pass through the two first curves located in the front half of the two blade parts, which are curved inward, so that The user can open the two grips by a small amount, and then a large opening angle can be formed in the front half of the two blades. The two cutting edges of the curved curve can easily and finely complete the fine cutting. It is relatively convenient and practical to use, effectively avoiding fatigue or soreness of the hands due to labor. 2. Labor-saving shearing: the curved scissors created in this creation can cut the thick or hard material to be cut or the round rod-like object through the two second curves that are bent outwards at the rear half of the two blades At the time, it can be cut with a small force application, which is relatively easy and labor-saving. For users who need to repeatedly cut for a long time, it can effectively avoid the situation that the hands are prone to fatigue or soreness. 3. Clamping anti-skid: When the two blades are opened, the intersection of the two second curves will form a jaw shape. When cutting a thick or hard material to be cut or a round rod, the object can be slightly clamped at The intersection of the two second curves of the two blade portions is not prone to slip, and the shear force will not be affected by the slip, so that the user can easily cut without extra effort.

In order to understand the technical features and practical effects of this creation in detail and to achieve it according to the content of the specification, the preferred embodiment as shown in the figure is further described below, and the detailed description is as follows:

This creation provides a curved scissors. Please refer to the first preferred embodiment shown in FIGS. 1 and 2. The curved scissors are provided with a blade set 10 and a grip set 20, in which:

The blade set 10 is provided with two bodies 11 and a pivoting member 12 combined with the two bodies 11, so that the two bodies 11 can rotate relative to each other through the pivoting member 12, and then the two bodies 11 are moved closer to or away from each other Each body 11 has a blade portion 13 and a coupling portion 14 combined with the blade portion 13, preferably, the blade portion 13 and the coupling portion 14 of each body 11 are integrally formed, the blades of the two bodies 11 The portions 13 respectively form a cutting edge 15 on the inner side facing each other. Please refer to FIG. 3 for further cooperation. Each cutting edge 15 is provided with at least one curved group. The at least one curved group is formed on the cutting edge The outer contour line of 15 includes a first curve 151 and a second curve 152, wherein the first curve 151 extends from the front end of the cutting edge 15 toward the rear end, and the second curve 152 and the first curve 151 is connected and continues to extend from the end of the first curve 151 toward the rear end of the cutting edge 15, so that the at least one curve group forms a continuous curved extending curve on the cutting edge 15, and the two curves 151, 152 The center of curvature is located on both sides of the cutting edge 15 rather than on the same side, so that the at least one curve group presents continuous curves curved in different directions. Wherein, the first curve 151 is curved toward the inside, and the second curve 152 is curved toward the outside; as shown in FIG. 3, if viewed in the vertical length corresponding to the Y-axis direction, the length of the first curve 151 is greater than the second The length of the curve 152, preferably, the ratio of the length of the two curves 151, 152 to the total length of the two is 7:3.

---------------------------------------------------------------------------------------------------(1) Further, as shown in FIG. 4, when the cutting edge portions 13 of the two bodies 11 of the present invention are arranged on an XY coordinate axis, the rear end of the cutting edge 15 of one of the cutting edge portions 13 is located on the X axis, and the cutting edge 15 The top of is located on the Y axis, the two curves 151, 152 of the cutting edge 15 together form a wavy curve, and the at least one curve group has a curve equation (1) as shown below:

-------------------------------------------------- -------------------------------------------------( 1)

Where -2.5≦s≦π, 0.1≦m≦10, and θ is the angle value, s is the coordinate variable (changes with the coordinate position) , and m is the curvature variable (affects the degree of curvature of the curve).

When θ is 97 and m is 6, the at least one curve group has the best shear curvature, and the bending degree at this time can obtain the best shearing effect. At least one curve of the shearing edge 15 of the other blade portion 13 The groups have the same curve equation (1).

The coupling portion 14 of each body 11 is connected to the rear end of the blade portion 13 and extends downward, and the pivoting member 12 is combined with the two bodies 11 and is located between the blade portion 13 and the coupling portion 14 of each body 11. When the two bodies 11 are relatively rotated, the two joints 14 can be moved closer to or away from each other, so that the two blade portions 13 are also moved closer to or away from each other as the two joints 14 are moved, the handle set 20 and the blade The group 10 is combined and provided with two grips 21, which are respectively combined with the joint portions 14 of the two bodies 11, and each grip 21 has a penetrating grip hole 211 for the user's finger to penetrate Hold and use.

Please refer to as shown in FIG. 5, when the curved scissors of the first preferred embodiment of the present invention are used, the user passes the fingers through the two holding holes 211 to hold the two handles 21, at this time, The two grips 21 can be moved away from each other by moving a finger, so that the two bodies 11 use the pivoting member 12 as a pivot to move the two blade portions 13 away from each other. Please refer to As shown in FIG. 6, when an object 40 to be cut is to be cut, the first curve 151 is provided for the first half of each of the two blade portions 13, so that the front half of the two blade portions 13 is opened when the curved scissors open Forming two curves with outward arcs extending outward, the user only needs to open the two grips 21 by a small amount to form a large opening angle at the intersection of the first curves 151 of the two blade portions 13 The cutting blade 15 performs fine cutting easily and effortlessly, is relatively convenient and practical in use, and effectively avoids fatigue or soreness of the hands due to labor.

Please refer to Fig. 7 and Fig. 8, when the curved scissors of the first preferred embodiment of the present invention are used, when it is necessary to cut the thick and hard material to be cut 40 or the round bar 50 , The user spreads the two grips 21 by fingers and drives the two blade bodies 11 to move relatively, so that the rear half of the two blade portions 13 are away from each other, so that the second curves 152 of the two cutting edges 15 are separated from each other. At this time, the object 40 to be cut or the round rod-like object 50 of thick material is placed at the intersection of the second curves 152 of the two cutting edges 15, wherein since each second curve 152 bends inward, the user only A small force is required to enable the two blade portions 13 to generate a large shearing force, and a jaw shape is formed at the intersection of the two second curves 152. The thick hard material to be cut 40 or When the round rod-shaped object 50 performs the shearing operation, the object to be cut 40 or the round rod-shaped object 50 can be slightly clamped at the intersection of the two second curves 152 so as not to easily slide, and the shearing is not affected by the sliding Force, so that users can easily cut without spending extra effort. It is relatively easy and labor-saving to use. For users who need to repeatedly cut for a long time, they can effectively avoid fatigue or soreness in their hands. Situation.

Please further refer to the second preferred embodiment of the original curved scissors shown in FIG. 9. The structure of this second preferred embodiment is similar to that of the first preferred embodiment. The difference is that: the blade portion of each body 11A The cutting edge 15A of 13A has two curve groups that are continuously formed on the outer contour of the cutting edge 15A, and each curve group includes a first curve 151A and a second curve 152A, so that the cutting edge On 15A, a first curve 151A curved inward, a second curve 152A curved outward, a first curve 151A curved inward, and a second curve 152A curved outward are formed in sequence from the front end to the rear end, The four together form a wavy curve, which can form a multi-segment clamping anti-skid effect, maintain a good shear force, and can cut two round rod-shaped objects 50 at a time.

Please further refer to the third preferred embodiment of the original curved scissors shown in FIGS. 10, 11a and 11b. The third preferred embodiment is similar in structure to the first preferred embodiment, and the differences are as follows: The inclination angle θ2 of the blade slope at the second curve 152B of each blade portion 13B is smaller than the inclination angle θ1 at the first curve 151B, that is, θ2>θ1, making the blade portion 13B of the second curve 152B sharper , The shearing force of the two blade portions 13B can be increased.

By the above-mentioned technical means, the curvilinear scissors of the present invention are provided with at least one curvilinear group through the cutting edge 15 of each blade 13, and not only can the two scissors located at the front half of the two blades 13 bend inward A curve 151, 151A, 151B allows the user to open the two grips 21 by a small amount, and then a large opening angle can be formed between the front halves of the two blade portions 13, 13A, 13B, through the wavy shape The two cutting edges 15, 15A of the curve perform fine cutting easily and effortlessly, and can pass through the two second curves 152, 152A, 152B, which are outwardly bent at the rear half of the two blade portions 13, 13A, 13B, to let When the user cuts the thick and hard material to be cut 40 or the round rod-shaped object 50, the thick and hard material to be cut 40 or the round rod-shaped object 50 can be slightly clamped on the two blade portions 13, 13A 13B, the two second curves 152, 152A, 152B are not easy to slide, and the shear force will not be affected by the sliding, so that the user can easily cut without extra effort, which is relatively convenient to use It is practical and effectively avoids fatigue or soreness caused by excessive effort, thereby providing a curved scissors that is labor-saving, non-slip, easy to use, and can improve the cutting effect.

The above is only the preferred embodiment of this creation, and does not limit this creation in any way. Anyone with ordinary knowledge in the technical field of the subject, if not departing from the scope of the technical solution proposed by this creation, use this The equivalent embodiments of the partial changes or modifications made by the technical content disclosed in the creation, and without departing from the technical solution content of the creation, still belong to the scope of the technical solution of the creation.

10: Blade group 11, 11A: Ontology 12: pivot joint 13, 13A, 13B: Blade part 14: Joint 15, 15A: Shear blade 151, 151A, 151B: the first curve 152, 152A, 152B: second curve 20: Grip group 21: Grip 211: Holding hole 40: Object to be cut 50: Round rod-shaped object θ1: tilt angle θ2: tilt angle

FIG. 1 is a perspective appearance view of the first preferred embodiment of the creative curve scissors. Fig. 2 is a front view of the appearance of the first preferred embodiment of the curvilinear scissors. Fig. 3 is a partially enlarged and perspective front view of the first preferred embodiment of the present curved curve scissors. 4 is a partially enlarged front view of the first preferred embodiment of the creative curve scissors and arranged on an X-Y coordinate axis. FIG. 5 is a schematic front view of the appearance of the first preferred embodiment of the creative curve scissors when opened. 6 is a schematic view of the operation of cutting the first half of the two cutting edges of the first preferred embodiment of the curvilinear scissors. 7 is a schematic diagram of the operation of cutting multiple sheets in the second half of the two blades of the first preferred embodiment of the curvilinear scissors. 8 is a schematic view of the operation of cutting the round rod-shaped object in the second half of the two cutting edges of the first preferred embodiment of the curvilinear scissors. FIG. 9 is a partially enlarged front view of the second preferred embodiment of the present curved scissors. FIG. 10 is a partially enlarged front view of the third preferred embodiment of the present curved scissors. 11a is a cross-sectional side view of the third preferred embodiment of the curvilinear scissors according to FIG. 10 along the a-a cutting plane line. FIG. 11b is a cross-sectional side view of the third preferred embodiment of the curvilinear scissors according to FIG. 10 along the cutting plane line b-b.

10: Blade group

11: Ontology

12: pivot joint

13: Blade part

15: Cutting edge

151: the first curve

152: Second curve

Claims (8)

A curved scissors, which is provided with a blade group and a grip group, in which: The blade set is provided with two bodies and a pivoting member, wherein each body has a blade part and a joint part, the blade parts of the two bodies form a cutting edge on the inner side facing each other. At least one curve group is formed on the outer contour line, the at least one curve group includes two curves, the centers of curvature of the two curves are respectively located on both sides of the cutting edge, so that the at least one curve group forms a continuous curve on the cutting edge An extended curve, the joint portion of each body is connected to the rear end of the blade portion and extends downward, and the pivot member is combined with the two bodies and is located between the blade portion and the joint portion of each body; and The grip set is combined with the blade set and provided with two grips, which are respectively combined with the joint parts of the two bodies. The curved scissors according to claim 1, wherein the two curves of at least one curve group of each cutting edge are respectively a first curve and a second curve, and the first curve is from the front end of the cutting edge toward the rear end Extending, and the second curve is connected with the first curve and continues from the end of the first curve to the rear end of the cutting edge. The curved scissors according to claim 1, wherein the cutting edge of the blade portion of each body has two curve groups, the two curve groups are continuously formed on the outer contour of the cutting edge, each of the curve groups is wavy and contains There is a first curve and a second curve. The first curve and the second curve respectively extend from the front end to the rear end of the cutting edge in sequence. The curved scissors according to claim 2, wherein the length of the first curve is greater than the length of the second curve. The curved scissors according to claim 2 or 4, wherein the ratio of the length of the first curve and the length of the second curve to the total length of the two is 7:3. The curved scissors according to claim 2 or 4, wherein each blade portion is sharper at the second curve than at the first curve. The curved scissors according to any one of claims 1 to 4, wherein the curve group of each cutting edge has a curve equation:

Among them, 2.5≦s≦π, 0.1≦m≦10, and θ is the angle value, s is the coordinate variable, and m is the curvature variable; when θ is 97 and m is 6, the curve group has the best shear curvature. The curved scissors according to claim 7, wherein each grip has a penetrating grip hole.

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