Scissors

Abstract

The invention provides a pair of scissors capable of suppressing, as much as possible, the occurrence of unexpected cracks at the tip of a cutting line when a paper sheet is cut. A pair of scissors (S) is provided with a first scissor body (1) as one scissor body, a second scissor body (2) as the other scissor body, and a fulcrum shaft (3) that supports the first and second scissor bodies (1, 2) so as to be rotatable relative to each other, and a recess (11w) is formed in a first blade (11) of the first scissor body (1) at a position further toward the front side than the fulcrum shaft (3). A first blade line front portion (e1f) located in front of the recess (11w) extends substantially linearly across a space between the recess (112) and the topmost point (m) of the first blade line (e1), and is inclined at an angle of more than 0 DEG and not more than 5 DEG with respect to an imaginary straight line (wi) connecting the topmost point (m) and the axial center point (js) of the fulcrum shaft (3).

Description

Technical Field

[0001] This invention relates to scissors. Background Technology

[0002] Previously, various scissors were known for cutting paper and other paper products by the user's operation (see, for example, Patent Document 1).

[0003] When using scissors to cut paper, it is preferable to create only neat cut lines for that type of paper.

[0004] However, in the past, such as... Figure 18 As illustrated, when a user moves the tips of the paired blades to their final positions (that is, the user operates the pair of handles for the fingers to grip towards each other to a position for docking) to cut paper P, unexpected damage such as cracks or deformation can easily occur near the tips ct in the cut line c.

[0005] Of course, if there are unexpected cracks, deformations, or other damage near the tip of the cut line in paper products, it will detract from the aesthetics.

[0006] The inventors of this application conducted an intensive study on the cause of the aforementioned defect and found that, at least, the defect was caused by an excessive load acting on the tip of the cutting line, where one side of the paper was pushed upwards (lifted up) by the blade and the other side of the paper was pressed downwards by the blade.

[0007] Existing technical documents

[0008] Patent documents

[0009] Patent Document 1: Japanese Patent Application Publication No. 2014-168495 Summary of the Invention

[0010] The problem that the invention aims to solve

[0011] The present invention was made with regard to the above-mentioned situation, at least suppressing the undesirable situation that unintended cracks, deformations and other damages are easily formed near the tip of the cut line when cutting paper.

[0012] Methods for solving problems

[0013] That is, the present invention is configured as follows.

[0014] The invention described in technical solution 1 is a pair of scissors, comprising: a scissor body comprising a blade with a cutting edge formed thereon; a scissor body comprising a blade with a cutting edge formed thereon; and a support shaft that supports the scissors to rotate relative to each other so that the cutting edges of both sides can slide to cut paper. A recess is formed in one or both blades of both sides at a position forward of the support shaft. The cutting edge located at the position forward of the recess extends in a generally straight line between the recess and the tip of the blade, and is inclined at an angle greater than 0° and less than 5° relative to an imaginary straight line connecting the axis of the support shaft and the tip of the blade.

[0015] According to the scissors described in technical solution 1, in the invention described in technical solution 2, the position of the blade line located in front of the recess is set to be closer to the imaginary straight line than the inner edge of the blade located in a position behind the recess.

[0016] According to the scissors described in technical solution 1, in the invention described in technical solution 3, the blades of one and the other are provided with a handle for the user's fingers to engage at the base end of the blade, and the support shaft is located at a position forward of the handle.

[0017] Invention Effects

[0018] As explained above, according to the present invention, it is at least possible to suppress undesirable conditions such as unexpected cracks, deformations, etc., that are easily formed near the tip of the cut line when cutting paper. Attached Figure Description

[0019] Figure 1 This is a perspective view illustrating one embodiment of the present invention.

[0020] Figure 2 This is the right view of this embodiment.

[0021] Figure 3 This is the left view of this embodiment.

[0022] Figure 4 This is a top view of this embodiment.

[0023] Figure 5 This is a bottom view of this embodiment.

[0024] Figure 6 This is the front view of this implementation.

[0025] Figure 7 This is a rear view of this embodiment.

[0026] Figure 8This is an exploded perspective view of this embodiment.

[0027] Figure 9 This is an exploded perspective view of this embodiment.

[0028] Figure 10 This is a perspective view of this embodiment.

[0029] Figure 11 yes Figure 10 A magnified view of the top part of the image.

[0030] Figure 12 yes Figure 2 A magnified view of the top part of the image.

[0031] Figure 13 yes Figure 3 A magnified view of the top part of the image.

[0032] Figure 14 yes Figure 4 A magnified view of the top part of the image.

[0033] Figure 15 yes Figure 2 An enlarged view of the first half of the image.

[0034] Figure 16 This is a top view showing the area near the cut line on a piece of paper when the scissors used in this embodiment form a cut line.

[0035] Figure 17 This is a right view showing the state in which the blade of the scissors used in this embodiment pushes (lifts up) a portion of the paper when a cutting line is formed on the paper.

[0036] Figure 18 This is a top view showing the area near the cut line of a type of paper when a cut line is made using conventional scissors (as in the case shown above). Figure 16 (Corresponding top view).

[0037] Figure 19 This is a right view showing the state where the blade of a pair of scissors, used in a conventional case, pushes a portion of the paper upwards when a cutting line is made on it. Figure 17 (Corresponding right view).

[0038] Explanation of reference numerals in the attached figures

[0039] 1…First Cut

[0040] 11…First blade

[0041] e1…First cutting line

[0042] 12…First handle

[0043] 2…Second cutting body

[0044] 21…Second blade

[0045] e2…Second blade line

[0046] 22…Second handle

[0047] 3…Pivot shaft

[0048] P…Paper-like materials

[0049] c…Cutting line

[0050] D…Damages such as breakage and deformation

[0051] wp…Imaginary straight line

[0052] e1f…Front part of the first blade line

[0053] Θ…Tilt angle Detailed implementation mode

[0054] [[ID=३५]]Hereinafter, refer to Figures 1 to 17 to describe an embodiment of the present invention.

[0055] Figure 18 It is a top view showing an example of a state where, as a conventional pair of scissors is used to form a cutting line c on paper-like materials P, damages D are formed near the tip ct of the cutting line c.

[0056] Figure 19 It is a right view showing a state where, when a conventional pair of scissors Sx is used to form a cutting line c on paper-like materials P, a part p1 of the paper-like materials P is pushed upward by the first blade 11x of the conventional pair of scissors Sx. Here, the reference numerals of the conventional pair of scissors Sx are obtained by adding "x" to the reference numerals used in this embodiment.

[0057] This embodiment applies the present invention to a pair of scissors S suitable for use in offices and homes. The pair of scissors S is suitable for uses such as cutting paper and other paper-like materials P.

[0058] In particular, the pair of scissors S of this embodiment is suitable for uses such as making paper crafts (English: papercraft) (Japanese: kami zaiku), paper cutting, etc., that is, uses where there is a high expectation of appropriately maintaining the appearance near the cutting line c formed on paper-like materials P.

[0059] The scissors S include: a first scissor 1 serving as one side of the scissor body; a second scissor 2 serving as the other side of the scissor body; and a support shaft 3, which supports the first scissor body 1 and the second scissor 2 so that they can rotate relative to each other in order to cut paper or other paper-like materials P by sliding the first cutting edge e1 and the second cutting edge e2. The first cutting edge e1 is a cutting edge formed on the cutting end edge of the first cutting edge 11, and the second cutting edge e2 is a cutting edge formed on the cutting end edge of the second cutting edge 21.

[0060] The scissors S can move around the pivot 3 between an open position (not shown) and a final cutting position (A). The open position is a position in which the first blade tip 11t, which is the tip of the first scissor 1, and the second blade tip 21t, which is the tip of the second scissor 2, are separated, and the paper-like material P to be cut is positioned between the first blade tip 11t and the second blade tip 21t. The final cutting position (A) is a position that constitutes the most overlapping position (J), which is the position in which the first blade tip 11t and the second blade tip 21t most overlap each other in the blade movement direction r.

[0061] The following is a detailed description of the scissors S.

[0062] <<First Cut 1>>

[0063] The first scissor 1 has a first metal blade 11 and a first handle 12 disposed at the base end 11k of the first blade 11 and for the user's fingers to engage.

[0064] <First Blade 11>

[0065] The first cutting blade 11 is positioned below the paper type P when cutting the paper type P. The first cutting blade 11 uses a stainless steel plate, which is a metal plate, as the base material. The first cutting blade 11 is manufactured by stamping.

[0066] Furthermore, in the first blade 11, at least the first blade tip 11t constituting the top of the first blade 11 is ground until a predetermined thickness w1 is obtained.

[0067] The first cutting edge 11 has a first cutting line e1 formed between its flat back edge 11b, which can slide with the second cutting edge 21, and its cutting surface 11s, which is the side facing opposite to the second cutting edge 21.

[0068] More specifically, the first cutting line e1 of the first blade 11 is formed between the back edge 11b and the sharpening surface 11c, which is formed at the end of the blade surface 11s.

[0069] If the angle between the opening face 11c of the first blade tip 11t and the back face 11b is set to a value of 60° or less, then when performing a cutting operation that changes from the opening posture to the final cutting posture (A), the displacement relative to the paper type P caused by the first blade tip 11t (the displacement in the thickness direction of the portion of the first blade tip 11t near the top end ct of the cutting line c) can be made gradual.

[0070] Furthermore, in this embodiment, the angle between the cutting surface 11c and the back surface 11b is set to approximately 47.5°.

[0071] The first cutting edge e1 is set to a length of at least 20 mm. The total length of the first cutting edge e1 is preferably set in the range of 60 mm to 70 mm, with an upper limit of 90 mm. More specifically, in this embodiment, the total length of the first cutting edge e1 is set to 65 mm.

[0072] The first tip 11t, which is the top part of the first blade 11, includes the topmost point m of the first cutting line e1.

[0073] A rectangular hole Q is formed between the front portion of the first cutting edge 11 with the first cutting edge line e1 and the rear portion of the first cutting edge 11, including the base end portion 11k embedded at the front end portion of the first shank portion 12. A bearing member g made of synthetic resin with a circular shaft insertion hole gh is installed in the rectangular hole Q.

[0074] <First Handle 12>

[0075] The first handle 12 is made of synthetic resin. The base end 11k of the first blade 11 is installed at the front end of the first handle 12. The first handle 12 is provided with a finger hole 12a for the user's finger to be inserted.

[0076] In this embodiment, the finger hole portion 12a of the first handle portion 12 is formed to allow the user's thumb to be inserted, and is smaller than the finger hole portion 22a of the second handle portion 22.

[0077] A first positioning portion 12b is provided at the middle of the end face of the first handle portion 12 facing the second handle portion 22 along its length. The first positioning portion 12b is shaped to protrude further toward the second handle portion 22 than the other end faces. The first positioning portion 12b can mate with the second positioning portion 22b provided on the second handle portion 22.

[0078] <<Second Cut 2>>

[0079] The second scissor 2 has a second metal blade 21 and a second handle 22 provided at the base end 21k of the second blade 21 and for the user's fingers to engage.

[0080] <Second Blade 21>

[0081] The second blade 21 is positioned above the paper type P when cutting the paper type P. The second blade 21 uses a stainless steel plate, which is a metal plate, as its base material. The second blade 21 is manufactured by stamping.

[0082] Furthermore, in the second blade 21, at least the second blade tip 21t constituting the top of the second blade 21 is ground until a predetermined thickness dimension w2 is obtained.

[0083] The second blade 21 has a second cutting line e2 formed between its flat back edge 21b, which can slide with the first blade 11, and its blade surface 21s, which is the side facing opposite to the first blade 11.

[0084] More specifically, the second cutting line e2 of the second blade 21 is formed between the back edge 21b and the cutting surface 21c, wherein the cutting surface 21c is formed at the end of the blade surface 21s.

[0085] If the angle between the opening face 21c of the second blade tip 21t and the back face 21b is set to a value of 60° or less, then when performing a cutting operation that changes from the opening posture to the final cutting posture (A), the displacement relative to the paper type P caused by the second blade tip 21t (the displacement of the second blade tip 21t in the thickness direction relative to the portion near the top end ct of the cutting line c) can be made gradual.

[0086] Furthermore, in this embodiment, the angle between the cutting surface 21c and the back surface 21b is set to approximately 47.5°.

[0087] The second cutting edge e2 is set to a length of at least 20 mm. The total length of the second cutting edge e2 is preferably set in the range of 60 mm to 70 mm, with an upper limit of 90 mm. More specifically, in this embodiment, the total length of the second cutting edge e2 is set to 65 mm.

[0088] The second tip 21t, which is the top part of the second blade 21, includes the topmost point n of the second cutting line e2.

[0089] Between the front part of the second blade 21 with the second cutting edge e2 and the rear part of the second blade 21 including the base end 21k embedded at the front end of the second shank 22, a shaft insertion hole 21h for the support shaft 3 to be inserted is provided.

[0090] In addition, the top end 3t of the support shaft 3 of the bearing member g installed at the rectangular hole Q of the first blade 11 and the shaft insertion hole 21h of the second blade 21 is riveted and deformed on the outer surface of the second blade 21 in order to connect the first blade 11 and the second blade 21 in a way that allows them to rotate relative to each other.

[0091] <Second handle 22>

[0092] The second handle 22 is made of synthetic resin. The base end 21k of the second blade 21 is installed at the front end of the second handle 22. The second handle 22 is provided with a finger hole 22a for the user's finger to be inserted.

[0093] In this embodiment, the finger hole portion 22a of the second handle portion 22 is formed to allow the user's fingers other than the thumb (such as the index finger, middle finger, ring finger, etc.) to be inserted, and is larger than the finger hole portion 12a of the first handle portion 12.

[0094] A second positioning portion 22b is provided at the middle of the end face of the second handle portion 22 facing the first handle portion 12 in the longitudinal direction. The second positioning portion 22b is shaped to protrude further toward the first handle portion 12 than the other end faces. The second positioning portion 22b can mate with the first positioning portion 12b provided on the first handle portion 12.

[0095] <Regarding the most overlapping position of the first cutting edge 11 and the second cutting edge 21 (J)>

[0096] The most overlapping position (J) of the first blade 11 and the second blade 21, which are connected by the support shaft 3 in a way that allows them to rotate relative to each other, in the direction of blade movement r is determined by the docking of the first positioning part 12b of the first handle 12 and the second positioning part 22b of the second handle 22.

[0097] That is, when the scissors S adopt the final cutting posture (A), the first blade 11 and the second blade 21 adopt the most overlapping position (J) in the blade movement direction r.

[0098] <<Support Shaft 3>>

[0099] The support shaft 3 connects the first shear body 1 and the second shear body 2 in a manner that allows them to rotate relative to each other.

[0100] The support shaft 3 is positioned forward of the first handle 12 constituting the first shear body 1 and the second handle 22 constituting the second shear body 2.

[0101] <Regarding the wall thickness dimensions w1 and w2 of the first cutting edge 11t and the second cutting edge 21t>

[0102] In the scissors S of this embodiment, particularly as Figure 11 As shown, at the most overlapping position (J) of the first cutting edge 11t and the second cutting edge 21t in the cutting direction r, the wall thickness w1 of the top part of the first cutting edge 11t is set to 0.2mm to 0.7mm, which corresponds to the first imaginary straight line k1 that is orthogonal to the cutting direction r from the top point n of the second cutting line e2.

[0103] In addition, in the scissors S of this embodiment, at the most overlapping position (J), the wall thickness w2 of the top part of the second blade tip 21t, which is located at the position corresponding to the second imaginary straight line k2 that is orthogonal to the blade movement direction r from the top point m of the first blade line e1, is set to 0.2 mm to 0.7 mm.

[0104] Here, if the wall thickness dimensions w1 and w2 of the corresponding parts of the first blade tip 11t and the second blade tip 21t are set to values ​​less than 0.2mm, it is easy to achieve the desired goal of not forming unexpected cracks, deformations or other damage D near the top of the cutting line c in the paper type P. However, on the other hand, it can easily cause problems such as blade curling (blade chipping).

[0105] In other words, if the wall thickness dimensions w1 and w2 of the corresponding parts of the first blade tip 11t and the second blade tip 21t are set to values ​​of 0.2 mm or more, the risk of blade rolling can be appropriately suppressed while achieving the initial purpose.

[0106] Furthermore, if the wall thickness dimensions w1 and w2 of the corresponding parts of the first blade tip 11t and the second blade tip 21t are set to values ​​greater than 0.7mm, the first blade tip 11t and the second blade tip 21t will act in a way that further expands the top part ct of the cutting line c laterally, which can easily cause unexpected cracks, deformations and other damages D near the top part ct of the cutting line c in the paper type P.

[0107] In other words, if the wall thickness dimensions w1 and w2 of the corresponding parts of the first cutting tip 11t and the second cutting tip 21t are set to values ​​of 0.7mm or less, it is not easy to form unexpected cracks, deformations or other damage D near the top of the cutting line c in the paper type P.

[0108] In this embodiment, the wall thickness dimensions w1 and w2 of the corresponding portions of the first cutting tip 11t and the second cutting tip 21t are set to 0.5 mm or less.

[0109] <Regarding the overlap dimension wp of the cutting action direction r of the first cutting tip 11t and the second cutting tip 21t>

[0110] In the scissors S of this embodiment, at the most overlapping position (J), the overlap dimension wp of the blade movement direction r at the top tip of the first blade tip 11t and the second blade tip 21t is set to a value greater than 0 and less than 1.0 mm.

[0111] Here, if the overlap dimension wp of the blade action direction r at the top tip of the first blade tip 11t and the second blade tip 21t is set to a value smaller than 0, not only will it be impossible to cut paper type P through the top tip of the first blade tip 11t and the top tip of the second blade tip 21t even in the final cutting posture (A), but it will also cause a safety problem because the first blade line e1 and the second blade line e2 included in the first blade tip 11t and the second blade tip 21t are always exposed.

[0112] Furthermore, if the overlap dimension wp of the cutting action direction r at the very top of the first cutting tip 11t and the second cutting tip 21t is set to a value greater than 1.0 mm, then when the first cutting tip 11t and the second cutting tip 21t form a cutting line c on the paper type P, the first cutting tip 11t and the second cutting tip 21t push the paper type P in opposite directions. Therefore, stress is easily concentrated near the top of the cutting line c ct in the paper type P, which can easily lead to damage D such as cracking and deformation.

[0113] In this embodiment, at the most overlapping position (J), the overlap dimension wp of the cutting action direction r at the topmost part of the first cutting tip 11t and the second cutting tip 21t is set to 0.5mm.

[0114] <The structure for suppressing the upward movement of paper type P during cutting by the first blade 11>

[0115] In this embodiment, the scissors S have an upward-pushing suppression structure on the first blade 11 of the first scissor body 1 that suppresses the upward pushing of a portion p1 of the paper type P when cutting it. Furthermore, the portion p1 of the paper type P that is pushed upward by the first blade 11 refers to the portion laterally adjacent to the first blade 11.

[0116] That is, a downwardly recessed portion 11w is formed in the first cutting edge 11 at a position forward of the support shaft 3. This recess 11w is configured to include a curved or bent first cutting line e1. Furthermore, the first cutting line e1 (hereinafter referred to as "the first cutting line front portion e1f") located in the first cutting edge 11 at a position forward of the recess 11w extends in a generally straight line between the recess 11w and the apex point m of the first cutting line e1, and is inclined at an angle Θ greater than 0° and less than 5° relative to the imaginary straight line wi connecting the axis point js of the support shaft 3 and the apex point m of the first cutting line e1.

[0117] If the tilt angle Θ is less than 0°, it will be difficult to form a cutting line c on paper type P. Furthermore, if the tilt angle Θ is set to an angle greater than 5°, then... Figure 19As illustrated, if the first blade 11x or the second blade 21x pushes a portion p1 of the paper type P upward or downward to an excessive degree, the load is easily concentrated at the top ct of the cut line c in the paper type P, which can easily cause damage D such as cracking or deformation.

[0118] Here, when the inclination angle Θ of the first cutting line e1f relative to the imaginary straight line wi is set in the range of 2° to 3°, it is preferable to achieve a good balance between the condition that the cutting line c can be reasonably formed on the paper type P and the condition that damage such as cracking or deformation is not easily formed near the top ct of the cutting line c.

[0119] Furthermore, in this embodiment, the inclination angle Θ of the first cutting edge front portion e1f relative to the imaginary straight line wi is set to 3°.

[0120] In this embodiment, the first blade 11 is positioned such that the position of the first blade line e1, which is located in front of the recess 11w, is closer to the imaginary straight line wi than the inner edge of the first blade 11, which is located in a position behind the recess 11w.

[0121] As described above, the scissors S of this embodiment includes: a first scissor 1 as one of the scissor blades, the first scissor 1 being configured to include a first blade 11 having a first blade line e1 as a blade line; a second scissor 2 as the other scissor blade, the second scissor 2 being configured to include a second blade 21 having a second blade line e2 as a blade line; and a support shaft 3, the support shaft 3 supporting the first scissor 1 and the second scissor 2 so that they can rotate relative to each other in order to allow the blade lines of both sides, namely the first blade line e1 and the second blade line e2, to slide and cut paper.

[0122] Furthermore, the scissors S have a recess 11w formed in the first blade 11 at a position forward of the support shaft 3. The first cutting line e1, located at a position forward of the recess 11w, extends in a generally straight line between the recess 111 and the top point m of the first cutting tip 11t in the first blade 11. Moreover, it is inclined at an angle greater than 0° and less than 5° relative to the imaginary straight line wi connecting the axis point js of the support shaft 3 and the top point m of the first cutting tip 11t.

[0123] Therefore, in this embodiment, it is possible to at least suppress, as far as possible, undesirable situations such as unexpected cracks, deformations, or other damage D that are easily formed near the tip ct of the cutting line c when cutting paper-type P.

[0124] In other words, in this embodiment, the first cutting line e1 of the first blade 11 is slightly inclined relative to the imaginary straight line wi. Therefore, a portion p1 of the paper type P will not be excessively pushed upward by the rising first blade 11 during cutting, and excessive load can be appropriately suppressed on the tip ct of the cutting line c in the paper type P.

[0125] The result is, as Figure 16 As shown, paper type P is less likely to develop damage such as cracks or deformation near the top of the cutting line c formed by the cooperation of the first blade 11 and the second blade 21, and can suppress the situation where the function or appearance of paper type P is damaged due to such damage as cracks or deformation as much as possible.

[0126] The position of the first cutting line e1, which is located in front of the concave portion 11w, is set to be closer to the imaginary straight line wi than the inner edge of the first cutting blade 11, which is located behind the concave portion 11w.

[0127] Therefore, by forming a recess 11w in the first blade 11, the position of the first cutting line e1, i.e., the front part e1f of the first cutting line, located in front of the recess 11w, can be appropriately close to the imaginary straight line wi.

[0128] The first shear 1 and the second shear 2, which are the shear blades of one and the other, are provided with a first handle 12 and a second handle 22 at the base ends 11k and 21k of the first blade 11 and the second blade 21, respectively, for the user's fingers to engage. The support shaft 3 is located in front of the first handle 12 and the second handle 22.

[0129] Therefore, the user can comfortably operate the first blade 11 and the second blade 21 by hooking their fingers on the first handle 12 and the second handle 22.

[0130] Furthermore, the present invention is not limited to the embodiments described in detail above.

[0131] The recess can be formed on either or both of the blades, and is not limited to being formed only on the first blade as described in the above embodiments.

[0132] The configuration in which the cutting line is inclined at an angle greater than 0° and less than 5° relative to the imaginary straight line can be provided on both the first cutting edge and the second cutting edge, or only on either the first cutting edge or the second cutting edge.

[0133] In the above embodiments, the case where the first blade is set to be operated by the user's thumb (the so-called moving blade side) and the second blade is set to be operated by the user's fingers other than the thumb (the so-called stationary blade side) has been described, but they can also be reversed.

[0134] In other words, scissors can also be scissors in which the second blade is set as the side operated by the user's thumb (the so-called moving blade side) and the first blade is set as the side operated by the user's fingers other than the thumb (the so-called stationary blade side).

[0135] The paper cut by scissors is not limited to paper; as long as it is made of sheet material, it can be any kind of item.

[0136] The first and second handles can, of course, be constructed without being separate from the first and second blades.

[0137] Furthermore, the specific configuration of each part is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

Claims

1. A pair of scissors comprising: a scissor body, the scissor body being configured to include a blade with a cutting edge; a scissor body, the scissor body being configured to include a blade with a cutting edge; and a support shaft, the support shaft supporting the scissor body and the other scissor body to be rotatable relative to each other so as to allow the cutting edges of both scissors to slide and cut paper. A recess is formed in one or both of the blades at a position forward of the support shaft. The cutting edge, located in front of the recess, extends in a generally straight line between the recess and the tip of the cutting edge, and is inclined at an angle greater than 0° and less than 5° relative to an imaginary straight line connecting the axis of the support and the tip of the cutting edge.

2. The scissors according to claim 1, The position of the cutting edge located in front of the recess is set to be closer to the imaginary straight line than the inner edge of the cutting edge located behind the recess.

3. The scissors according to claim 1, The blades of both the scissors are provided with handles at the base of the blade for the user's fingers to engage. The support shaft is positioned forward of the handle.

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