scissors

Abstract

This product provides scissors that not only cut paper effectively but also offer excellent design flexibility to effectively minimize the risk of injury to the user's fingers due to improper use. [Solution] The scissors S comprises a first blade S1 provided with a first blade portion 11 having a first cutting edge r1, and a second blade S2 provided with a second blade portion 21 having a second cutting edge r2, wherein the first and second blade portions 11 and 21 integrally include acute-angled portions c1 and c2 provided with first and second cutting edges r1 and r2, and priority contact portions p1 and p2 which are arranged outside the acute-angled portions c1 and c2 and are positioned in front of the first and second cutting edges r1 and r2 in the cutting direction d1 and d2, and which contact the object to be cut G with priority over the first and second cutting edges r1 and r2 during cutting.

Description

Technical Field

[0001] The present invention relates to scissors.

Background Art

[0002] Conventionally, various scissors have been known that take measures to prevent users such as infants from accidentally injuring their fingers (see, for example, Patent Document 1).

[0003] The scissors disclosed in Patent Document 1 are configured such that by attaching a separate cover to the blade piece, it is difficult for the user's finger to come into contact with the blade line which is the cutting edge of the blade piece.

[0004] However, in such scissors, since a cover formed separately from the blade piece is essential, not only does the number of parts increase, but the manufacturing man-hours and assembly man-hours are also significantly increased.

[0005] In view of such circumstances, conventionally, scissors that can be safely used by users such as infants without their fingers being injured depending on the shape of the blade piece without using a separate cover have also been studied.

[0006] However, most of the scissors that have been studied so far are unable to appropriately cut cuttings such as paper sheets. In other words, conventional scissors have been made to be safely used by users such as infants without their fingers being injured by sacrificing the ease of cutting of the cutting object to be cut.

Prior Art Documents

Patent Documents

[0007]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0008] The present invention has been made in view of the above circumstances, and aims to provide scissors that not only can suitably cut materials such as paper sheets, but also have excellent design flexibility to suitably suppress the risk of injury to the user's fingers due to improper use. [Means for solving the problem]

[0009] In other words, the present invention has the following configuration.

[0010] The invention described in claim 1 is a pair of scissors comprising a first blade with a blade edge and a second blade with a blade edge, wherein the scissors cut an object by sliding the blade edge of the first blade and the blade edge of the second blade, and the blade edge integrally comprises an acute-angled portion on which the blade edge is provided and a priority contact portion which is disposed outside the acute-angled portion and ahead of the blade in the direction of blade movement during cutting, and which contacts the object to be cut with priority over the blade edge during cutting.

[0011] The invention described in claim 2 is the scissors according to claim 1, wherein the priority contact portion includes a priority contact surface that faces the direction of blade movement during cutting.

[0012] The invention described in claim 3 is the scissors according to claim 2, wherein the priority contact surface is inclined so as to be gradually positioned in front of the blade movement direction during cutting, from the inside outwards.

[0013] The invention described in claim 4 is the scissors according to claim 1, wherein a recess is provided between the acute-angled portion and the priority contact portion, and the recess is open in the direction of blade operation.

[0014] The invention described in claim 5 is the scissors according to claim 4, wherein the acute-angled portion comprises a blade back surface facing the other blade portion, a recess-forming surface facing the opposite side of the blade back surface and constituting a part of the recess, and the blade line disposed between the blade back surface and the recess-forming surface.

[0015] The invention described in claim 6 is the scissors according to claim 1, wherein the acute-angled portion and the priority contact portion are provided over substantially the entire longitudinal area of ​​the blade portion.

[0016] The invention described in claim 7 is the scissors according to claim 1, further comprising a support shaft that supports the first blade and the second blade so as to be rotatable relative to each other around an axis.

[0017] The invention described in claim 8 is a pair of scissors according to claim 1, wherein the blade portion comprises an inner blade portion having the acute-angled portion and an outer blade portion having the priority contact portion and provided outside the inner blade portion, and the inner blade portion is provided with a recessed portion having a bottom surface spaced outward from the other blade portion in a region on the spine side of the blade line.

[0018] The invention described in claim 9 is the scissors according to claim 1, wherein each of the first and second scissor blades comprises a body having the blade portion and a handle portion provided integrally or separately at the base end of the body for the user's fingers to engage with.

[0019] The invention described in claim 10 is the scissors according to claim 1, wherein the position of the cutting edge is set to be on the spine side of the virtual straight line that coincides with the priority contact surface. [Effects of the Invention]

[0020] As described above, the present invention provides scissors that not only can suitably cut materials such as paper sheets, but also offer excellent design flexibility to suitably suppress the risk of injury to the user's fingers due to improper use. [Brief explanation of the drawing]

[0021] [Figure 1] A perspective view showing one embodiment of the present invention. [Figure 2] Right side view of the same embodiment. [Figure 3] Left side view of the same embodiment. [Figure 4] Rear view in the Q direction in FIG. 2. [Figure 5] Plan view in the embodiment. [Figure 6] Bottom view in the embodiment. [Figure 7] Partially enlarged perspective view in the embodiment. [Figure 8] Partially enlarged perspective view in the embodiment. [Figure 9] Partially enlarged perspective view in the embodiment. [Figure 10] Exploded perspective view in the embodiment. [Figure 11] Exploded perspective view in the embodiment. [Figure 12] End view taken along line X-X in FIG. 2. [Figure 13] End view taken along line Y-Y in FIG. 2. [Figure 14] End view taken along line Z-Z in FIG. 2. [Figure 15] Perspective view in the embodiment. [Figure 16] End view taken along line V-V in FIG. 15. [Figure 17] Perspective view in the embodiment. [Figure 18] End view taken along line W-W in FIG. 17.

Mode for Carrying Out the Invention

[0022] Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 18.

[0023] Here, the front-rear direction, left-right direction, and up-down direction in this embodiment are based on the settings shown in FIG. 1 for convenience of explanation.

[0024] This embodiment is an application of the present invention to scissors S that are preferably used in offices and homes. The scissors S are for cutting cut objects G such as paper sheets.

[0025] The scissors S comprises a first blade S1 which is one side of the scissors, a second blade S2 which is the other side of the scissors, and a support shaft J which supports the first blade S1 and the second blade S2 so that they can rotate relative to each other around an axis js.

[0026] The scissors S cut the material G by sliding the first cutting edge r1, which is the cutting edge formed on the first cutting edge portion 11 of the first scissor blade S1, and the second cutting edge r2, which is the cutting edge formed on the second cutting edge portion 21 of the second scissor blade S2, against each other.

[0027] The first cutting edge r1 and the second cutting edge r2 are positioned on the opposite side of the back of the first cutting edge portion 11 and the second cutting edge portion 21. The first cutting edge r1 and the second cutting edge r2 extend in the front-to-back direction, which is the longitudinal direction of the first cutting edge portion 11 and the second cutting edge portion 21, and function as cutting edges that directly contact the cut material G.

[0028] The scissors S are configured to be able to change between an open position (H) in which the first cutting edge r1 of the first blade portion 11 and the second cutting edge r2 of the second blade portion 21 are separated so that the object to be cut G can be placed between the first cutting edge r1 and the second cutting edge r2, and a closed position (T) in which the first blade portion 11 and the second blade portion 21 overlap.

[0029] The scissors S is designed to cut the material G, which is placed between the first blade portion 11 and the second blade portion 21, through the cooperation of the first cutting edge r1 and the second cutting edge r2, during the process of changing its position from an open position (H) to a closed position (T).

[0030] Here, the symbol "L" in Figures 12-14 and Figure 18 represents the cutting reference lines that coincide with the trajectories of the first cutting edge r1 of the first cutting edge portion 11 and the second cutting edge r2 of the second cutting edge portion 21, which move between the closed position (T) and the open position (H).

[0031] In this embodiment, the first blade portion 11 of the first scissor blade S1 and the second blade portion 21 of the second scissor blade S2 have a substantially symmetrical shape.

[0032] The following provides a detailed description of these scissors S.

[0033] <<First scissors S1>> The first scissor blade S1 comprises a first scissor blade body 1, which is the main body having a first blade portion 11 provided with a first cutting edge r1 extending in the front-rear direction, and a first handle portion e1, which is separately provided at the base end of the first scissor blade body 1 and is the handle portion into which the user's fingers engage.

[0034] <First scissor blade body 1> The first scissor blade body 1 is made of metal. The first scissor blade body 1 is made using a stainless steel plate as the base material. The first scissor blade body 1 is manufactured through press molding and cutting processes.

[0035] A first blade portion 11 is provided at the front of the first scissor body 1. A mounting portion 12 is provided at the rear of the first scissor body 1 to which the first handle portion e1 is attached. Between the first blade portion 11 and the mounting portion 12 of the first scissor body 1, a rectangular support shaft mounting hole 13 is formed, which penetrates in the left-right direction to accommodate the support shaft J.

[0036] [First blade part 11] The first blade portion 11 integrally comprises an acute-angled portion c1 on which the first cutting edge r1 is provided, and a priority contact portion p1 which is located outside, i.e., to the right of, the acute-angled portion c1 and is located in front of the first cutting edge r1 in the cutting direction d1, i.e., above the first cutting edge r1, and which contacts the workpiece G with priority over the first cutting edge r1 during cutting.

[0037] The first blade portion 11 is positioned below the object G when cutting the object G. Between the acute-angled portion c1 and the priority contact portion p1 of the first blade portion 11, there is a recess u1 that is open in the direction of blade movement d1 during cutting, i.e., upward.

[0038] The acute-angled portion c1 of the first blade portion 11 is provided on the upper part of the first blade portion 11 that extends in the front-rear direction. The acute-angled portion c1 of the first blade portion 11 comprises a blade back surface m1 facing the other blade portion, the second blade portion 21, i.e., the left side; a recess-forming surface w1 facing the opposite side of the blade back surface m1 and forming part of the recess u1; and a first cutting edge r1 positioned between the blade back surface m1 and the recess-forming surface w1.

[0039] The acute-angled portion c1 of the first cutting edge 11 has an acute-angled shape with the first cutting edge r1 as its apex. In this embodiment, as shown in Figures 12-14, 16, and 18, the angle α formed by the blade back surface m1 located near the first cutting edge r1 and the recessed surface w1 is set to an acute angle, i.e., a value smaller than 90°.

[0040] The priority contact portion p1 of the first blade portion 11 is located adjacent to the acute-angled portion c1 via a recess u1. The priority contact portion p1 of the first blade portion 11 includes a priority contact surface n1 that faces upward, which is the blade movement direction d1 during cutting.

[0041] The priority contact surface n1 provided on the first blade portion 11 is inclined so as to be positioned in front of the blade movement direction d1 during cutting, gradually moving from the inside to the outside. In other words, the priority contact surface n1 provided on the first blade portion 11 is inclined so as to be positioned gradually upward from the left side (inside) to the right side (outside).

[0042] The acute-angled portion c1, recess u1, and priority contact portion p1, which are arranged sequentially from the inside to the outside on the upper part of the first cutting edge portion 11, are provided over substantially the entire longitudinal area of ​​the first cutting edge portion 11.

[0043] In this embodiment, as shown in Figures 12-14 and Figure 18, the position of the first cutting edge r1 in the first cutting edge portion 11 is set to be located on the back of the blade (below) the virtual straight line Q that coincides with the priority contact surface n1.

[0044] In this embodiment, the first blade portion 11 is provided with a recessed portion k1 that can suppress the adhesion of adhesive substances such as glue to the back surface m1 of the blade.

[0045] More specifically, the first blade portion 11 comprises an inner blade portion 111 located on the inside in the thickness direction of the first blade portion 11 and having an acute-angled portion c1 at one end, and an outer blade portion 112 having a priority contact portion p1 at one end and being located outside the inner blade portion 111.

[0046] Furthermore, the inner blade portion 111 of the first blade portion 11 is provided with a recessed portion k1 having a bottom surface km that is spaced outward from the other blade portion, the second blade portion 21, in the region on the spine side, i.e., below, the first cutting edge r1.

[0047] The outer blade portion 112 of the first blade piece 11 is provided with a protruding portion h1 that extends outward from the outer surface of the priority contact portion p1 at a position corresponding to the recessed portion k1.

[0048] <First handle e1> The first handle e1 is made of synthetic resin. The front end of the first handle e1 is connected to the rear end of the first scissor body 1. The first handle e1 is provided with a finger hole e11 for inserting the user's finger.

[0049] <<Second scissors S2>> The second scissor blade S2 comprises a second scissor blade body 2, which is the main body having a second blade portion 21 provided with a second cutting edge r2 extending in the front-rear direction, and a second handle portion e2, which is separately provided at the base end of the second scissor blade body 2 and is the handle portion into which the user's fingers engage.

[0050] <Second scissor blade body 2> The second scissor blade body 2 is made of metal. The second scissor blade body 2 is made using a stainless steel plate as the base material. The second scissor blade body 2 is manufactured through press molding and machining processes.

[0051] A second blade portion 21 is provided at the front of the second scissor body 2. A mounting portion 22 is provided at the rear of the second scissor body 2 to which the second handle portion e2 is attached. Between the second blade portion 21 and the mounting portion 22 of the second scissor body 2, a circular hole-shaped support shaft mounting hole 23 is formed, penetrating in the left-right direction for accommodating the support shaft J.

[0052] [Second blade part 21] The second blade portion 21 integrally comprises an acute-angled portion c2 on which the second cutting edge r2 is provided, and a priority contact portion p2 which is located outside, i.e., to the left of, the acute-angled portion c2 and is located in front of the second cutting edge r2 in the cutting direction d2, i.e., below the second cutting edge r2, and which contacts the workpiece G with priority over the second cutting edge r2 during cutting.

[0053] The second blade portion 21 is positioned above the object G when cutting the object G. Between the acute-angled portion c2 and the priority contact portion p2 of the second blade portion 21, there is a recess u2 that is open in the direction of blade movement d2 during cutting, i.e., downwards.

[0054] The acute-angled portion c2 of the second blade portion 21 is provided at the lower part of the second blade portion 21 that extends in the front-rear direction. The acute-angled portion c2 of the second blade portion 21 comprises a blade back surface m2 facing the other blade portion, the first blade portion 11, i.e., the right side; a recess-forming surface w2 facing the opposite side of the blade back surface m2 and forming part of the recess u2; and a second cutting edge r2 positioned between the blade back surface m2 and the recess-forming surface w2.

[0055] The acute-angled portion c2 of the second cutting edge 21 has an acute-angled shape with the second cutting edge r2 as its apex. In this embodiment, as shown in Figures 12-14, 16, and 18, the angle β formed by the blade back surface m2 located near the second cutting edge r2 and the recessed surface w2 is set to an acute angle, i.e., less than 90°.

[0056] The priority contact portion p2 of the second blade portion 21 is located adjacent to the acute-angled portion c2 via a recess u2. The priority contact portion p2 of the second blade portion 21 includes a priority contact surface n2 that faces downward, which is the blade movement direction d2 during cutting.

[0057] The priority contact surface n2 provided on the second blade portion 21 is inclined so as to be positioned in front of the blade movement direction d2 during cutting, gradually moving from the inside to the outside. In other words, the priority contact surface n2 provided on the second blade portion 21 is inclined so as to be positioned gradually downward from the right side (inside) to the left side (outside).

[0058] The acute-angled portion c2, recess u2, and priority contact portion p2, which are arranged sequentially from the inside to the outside on the lower part of the second cutting edge portion 21, are provided over substantially the entire longitudinal area of ​​the second cutting edge portion 21.

[0059] In this embodiment, as shown in Figures 12-14 and Figure 18, the position of the second cutting edge r2 in the second cutting edge portion 21 is set to be on the crest side (above) of the virtual straight line Q that coincides with the priority contact surface n2.

[0060] In this embodiment, the second blade portion 21 is provided with a recessed portion k2 that can suppress the adhesion of adhesive substances such as glue to the back surface m2 of the blade.

[0061] More specifically, the second blade portion 21 comprises an inner blade portion 211 located on the inside in the thickness direction of the second blade portion 21 and having an acute-angled portion c2 at one end, and an outer blade portion 212 having a priority contact portion p2 at one end and being located outside the inner blade portion 211.

[0062] Furthermore, the inner blade portion 211 of the second blade portion 21 is provided with a recessed portion k2 having a bottom surface km that is spaced outward from the other blade portion, the first blade portion 11, in the region on the spine side, i.e., above the second cutting edge line r2.

[0063] The outer blade portion 212 of the second cutting edge portion 21 is provided with a protruding portion h2 that extends outward from the outer surface of the priority contact portion p2 at a position corresponding to the recessed portion k2.

[0064] <Second handle e2> The second handle e2 is made of synthetic resin. The front end of the second handle e2 is connected to the rear end of the second scissor body 2. The second handle e2 is provided with a finger hole e22 for inserting the user's finger.

[0065] <<Spindle J>> The support shaft J connects the first scissor blade S1 and the second scissor blade S2 so that they can rotate relative to each other.

[0066] The support shaft J is positioned behind the first and second blade portions 11 and 21 that constitute the first and second scissor blades S1 and S2, and in front of the first and second handle portions e1 and e2 that constitute the first and second scissor blades S1 and S2.

[0067] As described above, the scissors S according to this embodiment comprises a first scissor body S1 provided with a first blade portion 11 having a first cutting edge r1, and a second scissor body S2 provided with a second blade portion 21 having a second cutting edge r2, and cuts the object G by sliding the first cutting edge r1 of the first scissor body S1 and the second cutting edge r2 of the second scissor body S2.

[0068] Furthermore, the first and second blade portions 11 and 21 are integrally provided with acute-angled portions c1 and c2 on which the first and second cutting lines r1 and r2 are provided, and priority contact portions p1 and p2 which are positioned outside the acute-angled portions c1 and c2 and ahead of the first and second cutting lines r1 and r2 in the cutting direction d1 and d2, and which contact the workpiece G with priority over the first and second cutting lines r1 and r2 during cutting.

[0069] Therefore, this embodiment provides scissors S that not only can suitably cut materials G such as paper sheets, but also offer excellent design flexibility to suitably suppress the risk of injury to the user's fingers F due to incorrect use.

[0070] In other words, with the scissors S shown in this embodiment, as shown in Figures 17 and 18, even if a finger F is accidentally inserted between the first blade portion 11 and the second blade portion 21, the priority contact portion p1 provided on the first blade portion 11 and the priority contact portion p2 provided on the second blade portion 21 will preferentially contact the finger F.

[0071] Therefore, with the scissors S of this embodiment, even if a finger F is positioned between the first blade portion 11 and the second blade portion 21, the priority contact portion p1 of the first blade portion 11 and the priority contact portion p2 of the second blade portion 21 work together to make it difficult for the first and second blade lines r1 and r2 to come into contact with the finger F.

[0072] On the other hand, the first and second cutting edges 11 and 21 are equipped with sharp-angled portions c1 and c2 on which the first and second cutting lines r1 and r2 are provided, so that flexible materials G such as paper sheets can be suitably cut using the sharp first and second cutting lines r1 and r2.

[0073] The priority contact portions p1 and p2 include priority contact surfaces n1 and n2 that face the blade movement directions d1 and d2 during cutting.

[0074] Therefore, the priority contact surfaces n1 and n2 are designed to easily come into surface contact with the object to be cut G, making it less likely to injure the object to be cut G or a finger F that is accidentally inserted.

[0075] The priority contact surfaces n1 and n2 are inclined so that they are positioned in front of the blade movement directions d1 and d2 during gradual cutting, from the inside outwards.

[0076] Therefore, the scissors S of this embodiment offer excellent design flexibility to prevent excessive bending of the cutting material G, such as paper sheets, by the priority contact portions p1 and p2 during cutting, as illustrated in Figures 15 and 16.

[0077] In other words, in this embodiment, since the priority contact surfaces n1 and n2 are inclined, the amount of deformation of the cut object G during cutting is suitably suppressed.

[0078] Recesses u1 and u2 are provided between the acute-angled portions c1 and c2 and the priority contact portions p1 and p2, and are open in the cutting blade movement directions d1 and d2.

[0079] Therefore, acute-angled portions c1 and c2 are suitably formed at desired locations on the first blade portion 11 and the second blade portion 21.

[0080] The acute-angled portion c1 of the first blade piece 11 comprises a blade surface m1 facing the second blade piece 21, which is the other blade piece; a recess-forming surface w1 facing the opposite side of the blade surface m1 and forming part of the recess u1; and a first blade line r1, which is a blade line positioned between the blade surface m1 and the recess-forming surface w1.

[0081] Furthermore, the acute-angled portion c2 of the second blade piece 21 comprises a blade surface m2 facing the first blade piece 11, which is the other blade piece; a recess-forming surface w2 facing the opposite side of the blade surface m2 and forming part of the recess u2; and a second blade line r2, which is a blade line positioned between the blade surface m2 and the recess-forming surface w2.

[0082] Therefore, the first blade portion 11 and the second blade portion 21 are preferably provided with sharp-angled portions c1 and c2 that contribute to the ease of cutting the material G.

[0083] The acute-angled portions c1, c2 and the priority contact portions p1, p2 are provided over substantially the entire longitudinal area of ​​the first cutting edge portion 11 and the second cutting edge portion 21.

[0084] Therefore, the scissors S have a configuration that suitably balances two conflicting functions: the ability to suitably cut the material G, such as paper sheets, over the entire front-to-back range without compromising its ability to cut, and the ability to suitably suppress the risk of injury to the user's fingers F due to incorrect use.

[0085] The device is equipped with a support shaft J that supports the first scissor blade S1 and the second scissor blade S2 so that they can rotate relative to each other around an axis js.

[0086] Therefore, the scissors S are designed with a configuration that offers excellent user convenience, allowing the user to operate the first blade S1 and the second blade S2.

[0087] The first blade portion 11 and the second blade portion 21 each comprise an inner blade portion 111, 211 with acute-angled portions c1, c2, and an outer blade portion 112, 212 having priority contact portions p1, p2 and provided outside the inner blade portion 111, 211.

[0088] Furthermore, the inner blade portions 111 and 211 of the first blade portion 11 and the second blade portion 21 are provided with recessed portions k1 and k2, which have a bottom surface km spaced outward from the other blade portion, in the region closer to the spine of the blade than the first and second cutting edges r1 and r2.

[0089] Therefore, the first blade portion 11 and the second blade portion 21 are provided with recessed portions k1 and k2, which effectively suppresses the problem of adhesives such as glue adhering to the back surfaces m1 and m2 of the blades.

[0090] Each of the first and second scissor blades S1 and S2 comprises a first and second scissor blade body 1 and 2, which are bodies having first and second blade sections 11 and 21, and a first and second handle section e1 and e2, which are separately provided at the base ends of the first and second scissor blade bodies 1 and 2 and into which the user's fingers engage.

[0091] Therefore, the user can perform a comfortable operation to cut the material G by interlocking their fingers with the first and second handle sections e1 and e2.

[0092] However, the present invention is not limited to the embodiments described in detail above.

[0093] The scissors only need to cut material by sliding the cutting edge of the first blade against the cutting edge of the second blade, and are not limited to those shown in the embodiments described above. For example, the scissors may have a configuration that does not have a pivot shaft.

[0094] It goes without saying that the shape of the main body constituting the first and second scissor blades can be modified in various ways without departing from the present invention.

[0095] The priority contact portion may not have a priority contact surface. For example, the priority contact portion may be a projection that does not have a surface portion.

[0096] The priority contact surface provided in the priority contact portion does not have to be in an inclined position. For example, the priority contact surface may be oriented perpendicular to the back surface of the blade.

[0097] The priority contact surface may be inclined so that it is gradually positioned towards the rear in the direction of blade movement during cutting, from the inside outwards.

[0098] It goes without saying that the shape of the recess between the acute-angled portion and the priority contact portion can be flexibly modified without departing from the spirit of the present invention.

[0099] The acute-angled portion and the priority contact portion may not be provided over substantially the entire longitudinal area of ​​the blade portion.

[0100] The blade portion may not have a recessed area.

[0101] In the embodiment described above, the first scissor blade, having the first cutting edge, is operated by the user's thumb (the so-called moving blade side), while the second scissor blade, having the second cutting edge, is operated by the user's fingers other than the thumb (the so-called stationary blade side). However, these can also be reversed.

[0102] In other words, the scissors may be configured such that the second blade is operated by the user's thumb (the so-called moving blade side) and the first blade is operated by the user's fingers other than the thumb (the so-called stationary blade side).

[0103] It goes without saying that the materials cut by scissors are not limited to paper sheets and other paper-based materials.

[0104] It goes without saying that the first and second handle sections may not be constructed separately from the main bodies of the first and second blade sections.

[0105] The first and second scissor blades are not limited to being made of metal, but may also be made of ceramic or other raw materials.

[0106] Furthermore, the specific configuration of each part is not limited to the above embodiments, and various modifications are possible without departing from the spirit of the present invention. [Industrial applicability]

[0107] This invention can be used as scissors for cutting materials. [Explanation of symbols]

[0108] S... Scissors S1…first scissor body S2…Second scissors 11...First blade part (blade part) 21...Second blade part (blade part) c1, c2... Acute-angled parts p1, p2...Priority contact part r1…First blade line (blade line) r2…Second blade line (blade line) G…cutting material

Claims

1. A pair of scissors comprising a first blade with a cutting edge and a second blade with a cutting edge, wherein the cutting edge of the first blade and the cutting edge of the second blade slide against each other to cut the material, The scissors comprising, as described above, an acute-angled portion on which the cutting edge is provided, and a priority contact portion which is disposed outside the acute-angled portion and ahead of the cutting edge in the direction of blade movement during cutting, and which contacts the object to be cut with priority over the cutting edge during cutting.

2. The scissors according to claim 1, wherein the priority contact portion includes a priority contact surface that faces the direction of blade movement during cutting.

3. The scissors according to claim 2, wherein the priority contact surface is inclined so as to be gradually positioned in front of the blade movement direction during cutting, from the inside outwards.

4. The scissors according to claim 1, wherein a recess is provided between the acute-angled portion and the priority contact portion, and the recess is open in the direction of blade operation.

5. The scissors according to claim 4, wherein the acute-angled portion comprises a blade back surface facing the other blade portion, a recess-forming surface facing the opposite side of the blade back surface and forming part of the recess, and the blade line disposed between the blade back surface and the recess-forming surface.

6. The scissors according to claim 1, wherein the acute-angled portion and the priority contact portion are provided over substantially the entire longitudinal area of ​​the blade portion.

7. The scissors according to claim 1, further comprising a support shaft that enables the first and second scissor blades to rotate relative to each other around an axis.

8. The blade portion comprises an inner blade portion having the sharp-angled portion and an outer blade portion having the priority contact portion and provided outside the inner blade portion. The scissors according to claim 1, wherein the inner portion of the blade is provided with a recessed portion having a bottom surface spaced outward from the other blade portion, in a region closer to the spine of the blade than the cutting edge.

9. The scissors according to claim 1, wherein each of the first and second scissor blades comprises a main body having the blade portion and a handle portion provided integrally or separately at the base end of the main body for the user's fingers to engage with.

10. The scissors according to claim 1, wherein the position of the cutting edge is set to be located on the spine side of the virtual straight line that coincides with the priority contact surface.

Images