JP3021591U - Scissors sharpener - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To provide a scissor sharpener capable of coping with a difference in the cutting edge angle of scissors, having good operability, and sharpening the blade portion. A sharpener body 2 having a rod shape, and first and second polishing parts 4 and 5 formed at both ends of the sharpener body 2 are provided. The first and second polishing parts 4 and 5 are provided with guide grooves 6 and 7 having a substantially V shape which are substantially orthogonal to the axial direction of the sharpener body 2. The guide grooves 6 and 7 have two square zirconia-made grindstones 8 made of zirconia and a guide member 8A made of alumina, which are arranged side by side so that the corners thereof protrude from the end side slopes 6A and 7A. The first and second polishing parts 4, 5
The mounting angles β1 and β2 of the grindstones are different from about 50 ° and about 80 °.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a scissors sharpener, and more particularly to a scissors sharpener capable of coping with a difference in the cutting edge angle of scissors, having good operability and having a high sharpening efficiency of a blade portion.

[0002]

[Prior art]

 Conventionally, the sharpening of a shearing blade such as scissors has been performed by bringing a grindstone into contact with the blade according to the angle of the blade edge and sliding the grindstone along the blade edge. However, unlike a knife, scissors are cut by shearing two blades, so the blade itself has a certain thickness, so the angle of the cutting edge is much larger than that of a cutting blade such as a kitchen knife. Therefore, it takes skill to accurately sharpen the cutting edge angle.

In Japanese Utility Model Publication No. 7-13957, a cover member provided with a knife insertion groove and a crane-shaped elastic support pillar integrally formed with a base plate portion are made to be held by inclining a grindstone. A grindstone member having a V-shaped grinding surface formed at a position corresponding to, and having a base portion of an appropriate elastic pillar and a box-shaped fixing portion that wraps around the lower portion of the grindstone mounted and formed on the pillar. A kitchen knife sharpener is disclosed, which includes a base member that is erected from a base end of a projecting plate having an end face inside a bending space of an elastic column as a stopper. This sharpener comes into contact with the cutting edge of the object to be polished at an appropriate pressure during polishing.The sharp knife sharpener is suitable for sharpening the cutting edge of a sharp edge such as a knife, but the scissors are the same as those mentioned above. As mentioned above, since the blade itself has a certain thickness and the angle of the blade edge is much larger than that of the kitchen knife, there is a problem that it cannot be used.

Therefore, various sharpeners capable of sharpening the cutting edge of such scissors have been proposed. In Japanese Unexamined Patent Publication No. 3-136757, blade edges are formed by inserting the tips of scissors blades into a pair of openings provided with a roll-shaped grindstone and pressing them against each other with an appropriate force such as when cutting a handle. There is disclosed a scissor sharpener for forming fine blades.

Further, Japanese Patent Laid-Open No. 6-155254 discloses a portable manual sharpener for polishing a cutting edge portion of a blade of a cutting tool such as a knife and the like, and a base and a polishing portion mounted on the base. This polishing unit has a position fixing support means having a pair of surfaces inclined in opposite directions, and polishing particles on each surface for making each surface a flat polishing surface. The polishing section is formed with a pair of symmetrical slots inclined toward the polishing surface, and each slot is a flat surface inclined at a predetermined inclination angle so as to intersect with each polishing surface. Guide means having an inclined guide surface and having the same predetermined inclination angle with respect to both guide surfaces are attached, and when the blade moves through the throttle, the cutting edge portion is Sliding in contact with each of the polishing surfaces Thus, there is disclosed a portable sharpener in which the blade is held in contact with each guide surface by the blade pressing means.

[0006]

[Problems to be solved by the device]

 However, the scissors sharpener disclosed in Japanese Patent Laid-Open No. 3-136757 is not only capable of adjusting the grindable cutting edge angle, but also has a structure in which both scissors blades are inserted into and removed from the opening. Although it is suitable for sharpening small scissors, it is not suitable for large garden scissors such as pruning scissors. Furthermore, since the angle of the cutting edge of the scissors is large, it is necessary to grind a large amount compared with a kitchen knife to restore sharp sharpness again, but with a roller-shaped grindstone, the grinding amount is small, so the sharpener for scissors is used. There is a problem that it is not enough.

Further, the portable sharpener disclosed in Japanese Patent Application Laid-Open No. 6-155254 is such that a blade portion is brought into contact with a flat plate-shaped polishing surface to reciprocate, but the blade edge portion and a grindstone are in surface contact. Therefore, it is not possible to obtain a sufficient amount of grinding for a blade body with a large cutting edge angle such as scissors with a few reciprocating motions, so the scissor blade part must be reciprocated many times. However, there is a problem that it is not practical.

The present invention has been made for the purpose of solving the above problems, and is capable of coping with the difference in the cutting edge angle of scissors, has good operability, and has good scissor sharpening efficiency. The purpose is to provide a container.

[0009]

[Means for Solving the Problems]

 The scissors sharpening device according to claim 1 of the present invention is a scissors sharpening device for polishing a blade portion of a shearing blade such as scissors, comprising a rod-shaped sharpening device main body, and a first sharpening device formed at both ends of the sharpening device main body. A first and a second polishing portion, wherein the first and second polishing portions are a substantially V-shaped guide groove formed substantially orthogonal to the axial direction of the sharpener body, and the guide groove. And a grinding stone made of a columnar ceramic having a corner portion provided so that the corner portion projects from one of the slopes, and the mounting angles of the grinding stones of the first and second polishing portions with respect to the other slope surface are the same. It is wrong. With such a configuration, by inserting and sliding the blade portion of the scissors into the guide groove, the blade edge makes a line contact with the corner portion of the columnar ceramic grindstone, and the blade edge can be sharpened with a large grinding amount. it can. Further, since the first and second polishing parts are provided at both ends and the mounting angles of the first and second polishing parts to the other slope of the grindstone are different, the angles of the cutting edges are different. It is possible to handle two or more types of scissors.

Further, in the scissors sharpening device according to a second aspect of the present invention, a guide member is provided in parallel with the columnar ceramic grindstone. With such a configuration, the blade can be stably slid against the ceramic grindstone and sharpened.

In the scissor sharpener according to a third aspect of the present invention, the columnar ceramic grindstone having the corner portions is made of high hardness and high toughness ceramics. With this configuration, the blade can be sharpened with a larger amount of grinding.

The scissor sharpener according to claim 4 is such that the mounting angle of the guide groove of the first polishing section to the other slope of the grindstone is 45 to 55 °, and the grindstone of the guide groove of the second polishing section. The angle of attachment to the other slope is 75 to 85 °. With such a configuration, the first polishing section is suitable for sharpening scissors having a relatively small blade edge for gardening, and the second polishing section has a large blade angle for office work. It is suitable for sharpening scissors and can be used as a scissor sharpener having a wide range of application.

According to a fifth aspect of the present invention, the scissors sharpener has an elastic grindstone attached to the first polishing section or the second polishing section. With such a structure, it is possible to remove dirt such as tar and oil adhered to the blade portion by sliding the elastic grindstone before the blade portion is sharpened by the first polishing portion or the second polishing portion. it can. Further, after the blade portion is sharpened by the first polishing portion or the second polishing portion, it is possible to remove the return burr such as the back surface of the blade. In the present specification, the elastic grindstone refers to a grindstone in which abrasive particles are dispersed in hard rubber.

Further, in the scissors sharpener according to claim 6, the high hardness and high toughness ceramics are zirconia and the guide member is alumina. With this structure, the edge of the zirconia grindstone can be sharpened first with a large amount of grinding, and the alumina guide member functions as a finishing grindstone for finishing, so the scissor blade can be efficiently used. Can sharpen.

[0015]

[Embodiment of device]

Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. The scissor sharpener 1 of the first embodiment is a sharpener S for scissors S for office use having a blade portion of a shearing blade made of stainless steel, steel, etc., and has a smooth rod-shaped handle portion 2 And a first polishing section 4 and a second polishing section 5 in which both ends of the sharpener body 2 are slightly bent and the tips thereof are formed flat. A first V-shaped first guide groove 6 and a second V-shaped guide groove 7 are formed in the first polishing section 4 and the second polishing section 5, respectively, substantially perpendicular to the axial direction of the sharpener body 2. Has been done. On the end side slopes 6A and 7A of the guide grooves 6 and 7, two zirconia-made grindstones 8 which are high hardness and high toughness ceramics in the shape of a quadrangular prism and a guide member 8A made of an alumina in the shape of a quadrangular prism are respectively formed at the corners. They are arranged side by side at predetermined angles α1 and α2 and at predetermined mounting angles β1 and β2 with respect to the base side slopes 6B and 7B. Further, a step portion 4A is formed at the tip end portion of the first polishing portion 4 and an elastic grindstone 9 in which polishing particles are dispersed in hard rubber is fixed. As shown in FIG. 5, when the back surface of the blade portion 31 of the scissors is brought into contact with the base-side inclined surface 7B, the ceramic-made grindstone 8 and the guide member 8A have a zirconia grindstone 8 at the base end side and a guide member at the tip end side. It is configured to be 8A. The angle α1 of the corner of the zirconia grinding stone 8 is about 60 ° with respect to the tip side of the blade 31, and the angle α2 of the corner of the alumina guide member 8A is about 30 °. Has become. Further, regarding the attachment angles β1 and β2 of the grindstone 8, the base side is changed due to the difference in the angles of the substantially V-shaped internal grooves 6 and 7 of the first polishing portion 4 and the second polishing portion 5 as described above. The mounting angles β1 and β2 of the grindstone 8 with respect to the slopes 6B and 7B are also different. For example, the mounting angle β1 of the grindstone 8 in the guide groove 6 is 45 to 55 °, and the mounting angle β2 of the grindstone 8 in the guide groove 7 is 75 to 85. The installation angle β1 of the grindstone 8 in the guide groove 6 is about 50 °, and the installation angle β2 of the grindstone 8 in the guide groove 7 is about 80 °. In this embodiment, since the blade 31 of the scissors S is sharpened at the corner of the grindstone 8, the corner needs to be extremely sharp. Therefore, a flat plate-shaped zirconia ceramic should be manufactured in advance. It is preferable to use the one that is cut and cut with a diamond cutter or the like. In this example, zirconia is used as the high hardness and high toughness ceramics. This is because zirconia has a Vickers hardness (Hv) of about 1300, hardness almost equal to that of alumina, and bending strength of about 11000 kgf / cm ^2. It has excellent toughness. By using such zirconia as a grindstone and making line contact with the cutting edge 32 and sharpening at this corner, it is possible to increase the grinding amount and reduce chipping.

The sharpener body 2 is composed of a mounting member 11 made of a general-purpose synthetic resin such as ABS resin, which constitutes one side surface, and a smooth curved surface that can be fitted so as to cover the mounting portion 11. The mounting member 11 is provided with the mountain-shaped portions 13 and 13A forming the above-mentioned substantially V-shaped guide grooves 6 and 7 at both ends thereof. Notches 14 and 14 are formed on the end side of the chevron portion 13, and the corners of the grindstone 8 and the proposed member 8A project from the notches 14 and 14 at predetermined angles α1 and α2. Further, mounting grooves 15, 15A, 16 and 16A are formed so as to form predetermined mounting angles β1 and β2 with respect to the base side slopes 6B and 7B. Further, two reinforcing ribs 17, 17 are formed in the longitudinal direction of the mounting member 11, and a positioning pin 18 is projectingly formed in the middle portion. In addition, 19 is a screw stop hole. On the other hand, the cover member 12 is formed of a convex curved surface, and both ends thereof are notched in a V shape corresponding to the mountain-shaped portions 13 and 13A. Further, mounting auxiliary grooves 20, 20A, 21, 21A are formed corresponding to the mounting grooves 15, 15A, 16, 16A of the mounting member 11, respectively, and further, the two reinforcing ribs 17, 17 and A single reinforcing rib 22 and a positioning hole 23 are formed corresponding to the positioning pin 18. Incidentally, 24 is a screw receiving hole, and 25, 26 and 27 are ribs for fitting with the mounting member 11.

In the scissors sharpener 1 of the present invention as described above, first, the mounting grooves 15 and 16 of the mounting member 11 are made of a zirconia-made square pole-shaped grindstone 8 and the mounting grooves 15A and 16A are made of an alumina four-sided grinder. Each of the prismatic guide members 8A is placed. At this time, auxiliary means such as an adhesive may be used. Then, from the other side of the mounting member 11, the cover member 12 is fitted so that the reinforcing rib 22 is located between the two reinforcing ribs 17 and the positioning pin 18 and the positioning hole 23 are aligned with each other. Then, both members are fixed by screwing the screw 28 into the screw fixing hole 19. Then, the elastic grindstone 9 is fixed to the stepped portion 4A with an adhesive or the like, whereby the step can be manufactured.

The operation of the above configuration will be described. The handle 3 of the sharpener body 2 is gripped so that the guide grooves 6 and 7 are on the upper side, and the blade 31 of the scissors S is slid on the elastic grindstone 9 to remove tar, oil, etc. adhering to the blade 31. To do. Then, the first polishing section 4 and the second polishing section 5 are selected according to the angle of the blade edge 32 of the blade section 31 of the scissors S to be sharpened. For example, since the angle of the cutting edge 32 of scissors for office work is large, the second polishing section 5 should be selected. For pruning scissors for horticulture, the first polishing section 4 is selected because the angle of the cutting edge 32 is small and sharp. Then, as shown in FIG. 7, the guide groove 7 of the second polishing portion 5 inserts the blade portion 31 of the scissors S so that the back surface of the blade contacts the base-side inclined surface 6B, and the blade tip 32 makes light contact with the grindstone 8. In this state, it is possible to sharpen the blade portion 31 with a large amount of grinding simply by grasping the handle portion 3 of the sharpener body 2 with the hand H and moving it forward along the blade portion 2 or 3 times. At this time, the corner portion of the zirconia grindstone 8 on the base end side of the blade portion 31 is about 60 ° with respect to the tip end of the blade portion 31, and the alumina guide member 8A on the tip end side is attached to the tip end of the blade portion 31. On the other hand, since it is about 30 °, the hard and excellent toughness zirconia grindstone 8 grinds to a large degree, and the alumina guide member 8A functions as a finishing grindstone and can be finished. Then, after the blade portion 31 is sharpened in this manner, the back side of the blade portion 31 is slid with the elastic grindstone 9 as necessary to remove the back burrs and the like on the back of the blade, and the polishing is completed. In the above, the case of scissors S having a large blade edge 32 for office work has been described. However, in the case of gardening scissors having a small blade edge 32 angle, the first polishing section 4 having a small whetstone mounting angle is used. The same operation may be performed in.

As described above in detail, the scissor sharpener 1 of the first embodiment of the present invention is for sharpening the blade portion 31 of the scissors S, and comprises the rod-shaped sharpener body 2 and the sharpener body. 2 has first and second polishing portions 4 and 5 formed at both ends thereof, and the first and second polishing portions 4 and 5 are substantially orthogonal to the axial direction of the sharpener body 2. The guide grooves 6 and 7 each having a substantially V-shape are formed, and two quadrangular prism-shaped zirconia pieces are juxtaposed so that the corners protrude from the end side slopes 6A and 7A of the guide grooves 6 and 7. It is composed of a grindstone 8 and a guide member 8A made of alumina, and the mounting angles β1 and β2 of the grindstones of the first and second polishing parts 4 and 5 are different from about 50 ° and about 80 °. By inserting the blade 31 of the scissors S into 6 and 7, and sliding it, the blade comes into linear contact with the corner of the columnar ceramic grindstone 8 and the blade is large. Edged with a grinding amount. In addition, chipping is less likely to occur. Further, since the first and second polishing parts 4 and 5 are provided at both ends, and the mounting angles β1 and β2 of the grindstones of the first and second polishing parts 4 and 5 are different, the cutting edges are different. It is possible to handle two or more types of scissors S with different 32 angles. In particular, when the blade 31 such as the scissors S abuts, the grindstone 8 on the base end side of the blade 31 is zirconia and the guide member 8A on the tip side is alumina. Not only can the sliding direction of 31 be contacted with the grindstone 8 at an appropriate angle, but also the grindstone 8 made of zirconia can be sharpened with a large grinding amount first, and then the guide member 8A made of alumina 8A Since it can be finished by, the blade portion 31 of the scissors S can be sharpened efficiently. In addition, the amount of expensive zirconia grindstone used can be reduced, which is economically superior. Furthermore, since the mounting angle of the grindstone 8 of the guide groove 6 of the first polishing section 4 is about 50 ° and the mounting angle of the grindstone 8 of the guide groove 7 of the second polishing section 5 is about 80 °, The first polishing section 4 is suitable for sharpening the relatively sharp scissors S of the blade 32 for gardening, and the second polishing section 5 is suitable for sharpening the blunt scissors of the blade 32 for office work. The scissors sharpener has a wide range of application. Furthermore, since the elastic grindstone 9 is attached to the first polishing section 4, by sliding the elastic grindstone 9 before sharpening the blade section 31, stains such as tar and oil adhered to the blade section 31 can be removed. Can be removed. Further, after the blade portion 31 is sharpened by the first polishing portion 4 or the second polishing portion 5, it is also possible to carry out deburring such as the back surface of the blade portion 31. In addition, in the present embodiment, the rod-shaped sharpener body 2 comprises a mounting member 11 forming one side surface and a cover member 12 covering the mounting portion 11 from above, and both ends of the mounting member 11 are covered. The inverted V-shaped mountain-shaped portions 13 and 13A forming the substantially V-shaped guide grooves 6 and 7 are formed in the portion, and the grindstone 8 and the guide member 8A are guided to the mountain-shaped portions 13 and 13A. Mounting grooves 15, 15A, 16 and 16A are formed so that the corners project from the slopes 6A and 7A on the end side of the grooves 6 and 7 at predetermined angles α1 and α2 and predetermined mounting angles β1 and β2. Therefore, it is possible to easily attach the quadrangular prism-shaped ceramic grinding wheel 8 and the guide member 8A only by placing them along the attachment grooves 15, 15A, 16, 16A.

Next, a second embodiment of the present invention will be described with reference to FIG. The scissors sharpener 1 of the second embodiment has the same configuration as that of the first embodiment except that an opening window portion 29 is formed at the first polishing portion 4 and the second polishing portion 5 of the cover member 12. Have. By forming the opening window portion 29 at the polishing portion 4 and the second polishing portion 5 in this manner, the blade portion 31 passing through the grindstone 8 and the guide member 8A can be visually recognized, and therefore the polishing condition can be improved. It is possible to sharpen the blade portion 31 of the scissors while checking.

Further, a third embodiment of the present invention will be described with reference to FIG. The scissors sharpener 1 of the third embodiment has the same configuration as that of the first embodiment, except that a whetstone 8 made of zirconia is further attached to the tip side of the guide member 8A. The corners of the zirconia grinding wheel 8 are about 30 ° with respect to the tip. In this way, by arranging the zirconia whetstone 8, the alumina guide member 8A, and the zirconia whetstone 8 in succession from the base end side, the handle portion of the sharpener body 2 is gripped and the blade portion 31 is held. When inserting the guide groove and sliding it back and forth, it is possible to grind with a zirconia grinding wheel 8 both forward and backward.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-mentioned embodiments, and various modifications can be made without departing from the concept of the present invention. Is. For example, the sharpener main body 2 is configured by the mounting member 11 and the cover member 12 and the grindstones 8 and 8A are attached from the inside in the above-described embodiments, but the sharpener main body 2 is integrated. Alternatively, the grindstone 8 and the guide member 8A may be fitted from the outside. Further, although the zirconia grindstone 8 and the alumina guide member 8A are used in combination in the above embodiment, a zirconia grindstone may be further provided without providing the guide member 8A. Further, in the above embodiment, the alumina guide member 8A functions as a finishing grindstone, but the corners of the aluminum guide member 8A are rounded to substantially function as a grindstone. Instead, it may be a simple guide. In each of the above-mentioned embodiments, the first polishing section 4 is used for scissors having a small cutting edge angle, and the second polishing section 5 is used for scissors having a large cutting edge angle. Examples thereof include scissors, flower cutting scissors, trimming scissors, pruning scissors and the like. Examples of scissors having a large cutting edge angle include lasha cutting, kitchen scissors, office scissors, universal scissors, and gold cutting scissors.

[0023]

[Effect of device]

 The scissors sharpener according to claim 1 of the present invention comprises a rod-shaped sharpener main body, and first and second polishing parts formed at both ends of the sharpener main body. The polishing portion has a substantially V-shaped guide groove formed substantially orthogonal to the axial direction of the sharpener body, and a corner portion provided so that a corner portion protrudes from one slope of the guide groove. It is composed of a columnar ceramic grindstone, and the mounting angles of the grindstones of the first and second polishing parts with respect to the other slope are different. Therefore, insert the scissor blade into the guide groove and slide it. By moving the blade, the blade edge makes a line contact with the corner of the columnar ceramic grindstone, and the blade edge can be sharpened with a large amount of grinding while suppressing chipping. Further, since the first and second polishing parts are provided at both ends and the mounting angles of the grindstones of these first and second polishing parts are different, there are two or more types of blades having different angles of the cutting edge. It is compatible with scissors.

Further, in the scissors sharpening device according to the second aspect of the invention, since the guide member is arranged in parallel with the columnar ceramic grindstone, the blade portion is stably attached to the ceramic grindstone. You can slide it to sharpen.

In the scissor sharpener according to the third aspect, since the columnar ceramic grindstone having the corners is made of high hardness and high toughness ceramics, the blade can be sharpened with a larger grinding amount.

The scissors sharpener according to claim 4, wherein the mounting angle of the guide groove of the first polishing section to the other slope of the grindstone is 45 to 55 °, and the grindstone of the guide groove of the second polishing section is Since the angle of attachment to the other slope of the is 75-85 °, the first polishing section is suitable for sharpening scissors with a relatively small blade angle for gardening, and the second polishing section. Is suitable for sharpening scissors having a large blade edge for work, and can be a scissor sharpener having a wide range of application.

In the scissors sharpening device according to a fifth aspect of the present invention, since the elastic grindstone is attached to the first polishing section or the second polishing section, the first polishing section or the second polishing section. By sliding on the elastic grindstone before sharpening the blade portion at the portion, dirt such as tar and oil adhered to the blade portion can be removed. Further, after the blade portion is sharpened by the first polishing portion or the second polishing portion, it is possible to remove the return burr such as the back surface of the blade.

Further, in the scissors sharpener according to claim 6, since the high hardness and high toughness ceramic is zirconia and the guide member is alumina, the blade edge is first sharpened with a large grinding amount by a zirconia grindstone. Moreover, since the alumina guide member functions as a finishing grindstone and can be finished, the scissors blade can be sharpened efficiently.

[Brief description of drawings]

FIG. 1 is a bottom view showing a scissor sharpener according to a first embodiment of the present invention.

FIG. 2 is a side view showing the scissor sharpener of the first embodiment.

FIG. 3 is an exploded perspective view showing the scissors sharpener of the first embodiment.

FIG. 4 is a vertical cross-sectional view showing the scissors sharpener of the first embodiment, wherein (a) shows a first polishing section and (b) shows a second polishing section.

FIG. 5 is a schematic view showing an angle between a grindstone and a guide member of the scissors sharpener of the first embodiment.

6A and 6B are plan views showing a sharpener body of the scissors sharpener of the first embodiment, wherein FIG. 6A shows a mounting member and FIG. 6B shows a cover member.

FIG. 7 is a perspective view showing a usage state of the scissors sharpener of the first embodiment.

FIG. 8 is an enlarged plan view showing a scissor sharpener according to a second embodiment of the present invention.

FIG. 9 is an enlarged plan view showing a scissor sharpener according to a third embodiment of the present invention.

[Explanation of symbols]

 1 Scissor sharpener 2 Sharpener main body 4 First polishing part 5 Second polishing part 6,7 Guide groove 6A, 7A End side slope (one slope) 6B, 7B Base side slope (other slope) 8 Grinding stone 8A Guide member 9 Elastic grindstone 31 Blade portion β1 Grinding stone mounting angle in first polishing section β2 Grinding stone mounting angle in second polishing section S Scissors

Claims (6)

[Scope of utility model registration request] 1. A scissors sharpener for polishing a blade portion of a shearing blade such as scissors, comprising a rod-shaped sharpener body, and first and second polishing portions formed at both ends of the sharpener body. The first and second polishing parts have a substantially V-shaped guide groove formed substantially orthogonal to the axial direction of the sharpener body, and a corner part protrudes from one slope of the guide groove. Scissor sharpening, characterized in that it is made of a columnar ceramic grindstone having corner portions provided so as to have different angles of attachment to the other slope of the grindstones of the first and second polishing parts. vessel. 2. The scissors sharpener according to claim 1, wherein a guide member is provided in parallel with the columnar ceramic grindstone. 3. The scissor sharpener according to claim 1, wherein the columnar ceramic grindstone having the corners is made of high hardness and high toughness ceramics. 4. The mounting angle of the guide groove of the first polishing section with respect to the other slope of the grindstone is 45 to 55 °, and the mounting angle of the guide groove of the second polishing section with respect to the other slope of the grindstone is 75. ~
The scissor sharpener according to claim 3, wherein the angle is 85 °. 5. The scissors sharpener according to claim 4, wherein an elastic grindstone is attached to the first polishing section or the second polishing section. 6. The scissors sharpener according to claim 5, wherein the high hardness and high toughness ceramics is zirconia and the guide member is alumina.