JP2011217953A - Instrument capable of slitting container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem wherein existing instruments configured to slit containers such as milk cartons and then to cut the bottom cannot safely, reliably and easily slit containers such as cartons and PET bottles different in shape and size for cutting the bottom.SOLUTION: An instrument includes a backing part 14 and a slitting blade 8. The backing part 14 has an abutting surface 33 capable of abutting a surface of a container. The slitting blade 8 has a cutting edge 15 for driving the slitting blade 8 into the container surface. The cutting edge 15 is spaced from a plane defined by the abutting surface 33 of the backing part 14.

Description

  The present invention relates to a device capable of cutting a container such as a milk pack.

Milk and juices sold at mass retailers are put in paper packs and plastic bottle containers. And in order to reuse the used containers, many mass retailers have installed collection boxes for used milk packs at the storefronts, but it is sometimes required to open the milk packs at that time. Many. Further, when the container is discarded as resource waste, it is preferable to cut it into a flat shape because it is bulky if it is discarded as it is. Furthermore, the milk pack can be used as a disposable instant mortar by cutting it open.

By the way, in order to maintain the shape of a paper pack such as a milk pack or a plastic bottle for beverages, the bottom portion is particularly firmly formed. Therefore, in order to make the container flat, it can be easily performed by first separating the bottom. If the bottom part is cut off, the body part can be easily cut open and made flat, or the body part can be easily crushed to make the container flat.

When the bottom of the container is cut off with a scissors, it can be easily cut by first making a cut in the side surface near the bottom and inserting one cutting blade of the scissors into the cut. As a tool for cutting after making a cut in a container, a scissor with a claw portion for making a cut in the container has been proposed. This scissor has a nail part protruding from the side of the scissors, holds the scissors in hand and presses the claw part against the container to make a cut, and then inserts a scissors blade into the cut to cut the container It is. Since the paper and resin forming the container have a certain level of strength, the nail is immediately applied to the surface of the container just by applying a little force by directing the nail to the surface of the container. It is necessary to apply great force without being inserted. At that time, the nail part is in an unstable state, so when a large force is applied, the nail part may be tilted obliquely with the heel and not only can be cut quickly, but also the fingertips, etc. There is a risk of hurting. In addition, when a cut is made at the claw portion, there is no positioning means for the claw portion, so that the cut location cannot be made constant, and there is a possibility that the cut is made at a position away from the planned location.

  As another device for separating the bottom of the container, a milk pack dismantling device has been proposed in which a cutting knife is attached to the inner surface of a cylindrical container having a low height. This cutting knife is configured to cut and make a cutting action. This method of use has a configuration in which a milk pack is fitted into the dismantling device from the bottom, and the dismantling device is rotated once to cut the milk pack. When the milk pack is fitted into the dismantling device from the bottom, if the tip of the cutting knife touches the milk pack, it cannot be hooked and fitted. Therefore, when the cutting knife is perpendicular to the side of the milk pack, the tip of the cutting knife must not reach the side of the milk pack. However, with such a configuration, even if the dismantling device is rotated once, the side part that does not reach the cutting knife is not cut, so it is necessary to separate the bottom of the milk pack after the work, so it is cut off particularly quickly. There is no effect. In addition, since the container is inserted into a predetermined dismantling device, the size of the paper pack that can be used is limited and cannot be appropriately cut when the container is cylindrical.

Utility Model Registration No. 2543022 JP 2004-290636 A

  The problem to be solved is that, in the conventional instrument, when making a cut to cut the bottom of a container such as a paper pack or a plastic bottle having a different shape or size, the cut can be made safely, surely and easily. This is not possible.

  Claim 1 of the present invention has a contact plate portion and a cutting blade, the contact plate portion has a contact surface capable of contacting the surface of the container, and the cutting blade has the cutting blade on the surface of the container. The cutting edge has a cutting edge for cutting, and the cutting edge is configured to have an interval with respect to the surface formed by the contact surface of the contact plate portion.

  According to a second aspect of the present invention, in a state where at least a part of the contact surface is in contact with a predetermined surface of the container, a cut is made in another surface having an angle with respect to the predetermined surface with which the contact surface is in contact. In order to insert, the cutting blade can be moved so that the cutting edge of the cutting blade is cut into the other surface.

  The third aspect is a configuration in which the cutting blade is relatively movable with respect to the contact plate portion.

  According to a fourth aspect of the present invention, a pair of members are coupled by the support shafts so as to be relatively rotatable about the support shafts, each member has a handle, and one member is provided with a contact plate portion, When the handles of both members are closed from the opened state, the cutting blade moves relative to the contact plate portion.

  According to the fifth aspect of the present invention, when the contact plate portion and the cutting blade are both provided on one member and the handles of both members are closed from the opened state, the cutting blade is pressed by the other member and It is the structure which moves relatively with respect to a member.

  According to a sixth aspect of the present invention, a pair of members each having a handle are coupled by a support shaft so as to be relatively rotatable about the support shaft, the instrument has a backing plate portion and a cutting blade, The contact plate portion is movable relative to the contact plate portion, the contact plate portion has a contact surface that can contact the surface of the container, and the cutting blade is a cutting edge for cutting the cutting blade into the surface of the container. And the cutting edge has a space with respect to the surface constituted by the contact surface of the abutting plate portion, and the extension portion extending in the direction opposite to the handle of each member extends further forward than the support shaft. The portion is formed on the cutting blade, and the instrument is formed on the scissors.

In the first aspect of the present invention, the contact plate portion has a contact surface capable of contacting the surface of the container, and the cutting blade has a cutting edge for cutting the cutting blade into the surface of the container. The blade edge is spaced from the surface formed by the contact surface of the contact plate portion. Therefore, since the blade edge has a gap with respect to the contact surface of the abutting plate portion, it is possible to make a cut after positioning the blade edge at a position away from the container surface with which the contact surface contacts. There is no possibility that the cutting position is shifted.

According to a second aspect of the present invention, in a state where at least a part of the contact surface is in contact with a predetermined surface of the container, a cut is made in another surface having an angle with respect to the predetermined surface with which the contact surface is in contact. To insert, the cutting blade can be moved to cause the cutting edge of the cutting blade to cut into the other surface. Therefore, when making a cut into the container, it is possible to make the cut while bringing the contact plate portion into contact with the surface of the container, so that the instrument can be stabilized with respect to the container. As a result, the cutting blade does not tilt with respect to the surface of the container, and the cutting can be performed safely and reliably.

In the third aspect, the cutting blade is relatively movable with respect to the contact plate portion. Therefore, when making a cut, the cutting plate can be moved and cut in a state where the contact plate portion is fixed to the container, so that the instrument can be further stabilized with respect to the container.

According to a fourth aspect of the present invention, a pair of members each having a handle are coupled by the support shaft so as to be relatively rotatable about the support shaft, and a contact plate portion is provided on one member. When the blade is closed from the opened state, the cutting blade moves relative to the contact plate portion. Since the cutting edge is moved by operating the handle to cause the cutting edge to be cut into the container, the cutting edge can be strongly pressed against the container. Therefore, it is possible to easily make a cut.

According to the fifth aspect of the present invention, both the contact plate portion and the cutting blade are provided in one member, and when the handle of both members is closed from the opened state, the cutting blade is pressed by the other member and Moves relative to the member. Therefore, since the cutting is performed while the handle is closed, it is easier to operate than the configuration in which the cutting is performed while the handle is opened or the configuration in which the cutting is performed while rotating the handle. In addition, the hand holding the handle is stable and easy to operate. Since the cutting blade is formed separately from the one member, a material different from the member can be used in order to obtain a sharp blade. For example, when the member is made of stainless steel, the cutting blade can be sharpened as quenched stainless steel. Moreover, since it forms in a different body, it is easy to manufacture.

According to a sixth aspect of the present invention, a pair of members each having a handle are coupled by a support shaft so as to be relatively rotatable about the support shaft, the instrument has a backing plate portion and a cutting blade, The contact plate portion is movable relative to the contact plate portion, the contact plate portion has a contact surface that can contact the surface of the container, and the cutting blade is a cutting edge for cutting the cutting blade into the surface of the container. And the cutting edge has a space with respect to the surface constituted by the contact surface of the abutting plate portion, and the extension portion extending in the direction opposite to the handle of each member extends further forward than the support shaft. The part is formed into a cutting blade, and the entire instrument is formed into a ridge. Accordingly, the container can be cut with a scissors as one instrument, and the container can be cut by inserting a cutting blade into the cut.

FIG. 1 is a perspective view of the present invention with the handle closed. FIG. 2 is a perspective view of the present invention with the handle open. FIG. 3 is a front view of the present invention with the handle closed. FIG. 4 is a perspective view of the present invention with the handle open. FIG. 5 is a rear view of the present invention with the handle closed. FIG. 6 is a partial perspective view of a milk pack. FIG. 7 is a diagram showing a state where the milk pack is cut. Fig. 8 is a diagram before unpacking used milk cartons Fig. 9 shows a developed milk pack

  Next, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiment is a bowl as an instrument whose purpose is to easily separate the bottom of a milk pack. The rod 1 is coupled by the first support shaft 4 so that the pair of members 2 and 3 can rotate relative to each other about the first support shaft 4.

  One member 2 includes a handle 6, a handle portion 5, and a cutting blade 7, and a handle 6 formed in a ring shape is attached to the rear end of the handle portion 5. A cutting blade 7 extends integrally from the front end of the handle portion 5. The cutting blade 7 extends in a direction substantially perpendicular to the handle portion 5. As shown in FIG. 1 or FIG. 3, a cutting blade 8 is attached to the inner surface of the handle 5 by a second support shaft 9. The cutting blade 8 is rotatable with respect to the handle portion 5 around the second support shaft 9. The handle 5 is provided with a spring mounting protrusion 10. A wire spring 12 is stretched between the spring mounting protrusion 10 and a spring hole 11 provided in the cutting blade 8 via a second support shaft 9. By the action of the wire spring 12, the cutting blade 8 is elastically biased in the counterclockwise direction around the second support shaft 9. When the scissors 1 are gradually opened, the cutting blade 8 is elastically rotated counterclockwise, and when the scissors 1 is opened at a predetermined angle or more, the cutting edge 15 of the cutting blade 8 is shown in FIG. The nearby outer edge 16 hits the tip of the handle 6, and the cutting blade 8 is restricted from rotating here. FIG. 4 shows a state in which the rotation of the cutting blade 8 is restricted. In this state, the cutting edge 15 and the cutting edge 31 of the cutting blade 8 are along the handle 5 and are not exposed. It is. Further, since the cutting blade 8 is urged counterclockwise, both the cutting blades 7 and 19 are pressed against each other in order to prevent the handles 6 and 17 from being left open when not in use. A configuration in which the handles 6 and 17 can be closed when not in use by making the resistance due to the matching blade pressure and the clamping force of the support shaft 4 greater than the urging force of the wire spring 12 is preferable. When the resistance due to the blade pressure with which the two cutting blades 7 and 19 are pressed against each other and the clamping force of the support shaft 4 is smaller than the urging force of the wire spring 12, a ring-shaped stopper is attached to one of the handles 6 and 17. The bracket may be rotatably mounted, a latching groove for the metal fitting may be formed on the other handle, and the metal fitting may be hung on the latching groove to prevent the handles 6 and 17 from opening.

  One member 2 composed of the handle 6, the handle 5 and the cutting blade 7 has a crank shape as a whole. The outer edge of the handle 5 has a straight line portion 13 that extends linearly forward from the boundary between the handle 5 and the handle 6. A backing plate 14 is attached to the outer surface of the handle 5. The backing plate 14 protrudes upward from the straight portion 13 of the handle portion 5 in a substantially semicircular shape. The backing plate 14 is fixed to the handle portion 5 by the second support shaft 9 and the spring mounting protrusion 10. It may be fixed by welding. As described above, the cutting blade 8 is attached to the inner surface of the handle portion 5, and the contact plate 14 is attached to the outer surface of the handle portion 5. Therefore, the cutting blade 8 and the contact plate 14 are attached with an interval corresponding to the thickness of the handle portion 5. The thickness of the handle 5 is 2.5 mm, but is not limited to this value. Further, the interval may be equal to or less than the thickness of the handle portion 5 or may be equal to or greater than the thickness.

  The other member 3 includes a handle 17, a handle 18, and a cutting blade 19, and a handle 17 formed in a ring shape is attached to the rear end of the handle 18. A cutting blade 19 extends integrally from the front end of the handle 18. Since the rotation of the cutting blade 8 in the counterclockwise direction is restricted when both the handles 6 and 17 are fully opened as shown in FIG. 2 or FIG. 4, the upper edge 20 of the handle 18 is restricted. And a slightly angular rubbing portion 21 of the cutting blade 8 is spaced. When the handles 6 and 17 are gradually closed from this state, the upper edge 20 of the handle 18 hits the rubbing portion 21 of the cutting blade 8, and the rubbing portion 21 moves while rubbing on the upper edge 20 to cut. The blade 8 rotates in the clockwise direction with respect to the handle portion 5. FIG. 3 shows a state in which the handles 6 and 17 are fully closed. In this state, the cutting edge 15 and the cutting edge 31 of the cutting blade 8 are not exposed because they are along the backing plate 14 and the handle portion 5. The blade edge 15 does not protrude from the outer edge of the backing plate 14 and is safe. Note that the size of the bag 1 when the handles 6 and 17 are fully closed is about 175 mm in total length and about 95 mm in the maximum width in the vertical direction, but it is of course not limited to this size. The handles 6 and 17 are made of synthetic resin, but may be made of other materials. For example, it may be a metal or a leather wrapped around the surface. The handle portions 5, 18, the cutting blade 8, and the cutting blades 7, 19 are made of stainless steel, but other materials may be used. For example, a titanium alloy or a new ceramic may be used. When the cutting blade 8 and the cutting blades 7 and 19 are stainless steel, it is preferable to perform quenching in order to maintain the sharpness. Furthermore, for example, diamond-like carbon (DLC) may be formed to strengthen the cutting edge. DLC is a surface treatment technique conventionally used for strengthening the cutting edge of razors, knives, and medical blades. In recent years, DLC can be formed without a vacuum apparatus. The substrate temperature is controlled at 200 ° C., methane gas is allowed to flow through a gap of about 3 mm between the electrodes under atmospheric pressure, and a DLC film is formed on the surface of the object while being decomposed by plasma.

  Next, a case where the method of use of the present invention is used for a milk pack will be described as an example. First, a cut is made in the milk pack 22. When the incision is made, the hook 1 is held by inserting the fingers into the handles 6 and 17 from the back side of the paper to the front side in the state shown in FIG. In this case, the thumb is inserted into the handle 17 and the other finger is inserted into the handle 6. When cutting with a normal scissors using the cutting blades 7 and 19, the thumb is inserted into the handle 6 and the other finger is inserted into the handle 17, so that the finger can be inserted in either case. Handles 6 and 17 are formed. Next, after the milk pack 22 is laid down, the contact surface 33 which is the inner surface of the abutting plate 14 is applied to the bottom surface 23 of the milk pack 22 with the handles 6 and 17 opened. At this time, the cutting edge 15 of the cutting blade 8 does not protrude from the linear portion 13 of the handle portion 5. Since the straight line portion 13 of the handle 5 forms a surface orthogonal to the contact surface 33 of the backing plate 14, the straight line portion 13 is applied to the side surface 24 on the upper side of the milk pack that lies sideways. The positions of the abutting plate portion 14 and the linear portion 13 with respect to the milk pack 22 are constant. That is, the cutting operation is performed at a position where the handle 6 hits the front end portion 26 of the bent ridge line 25 between the bottom surface 23 and the upper side surface 24 of the milk pack 22 laid sideways. This is because the heel 1 is stabilized because the handle 6 hits the front end 26 of the bent ridge line 25. The cutting edge 15 of the cutting blade 8 is inserted into the corner portion 29 of the side surface 24 on the upper side, but the corner portion 29 is surrounded by the bending ridge line 28 orthogonal to the bending ridge line 25, so that the cutting is difficult to bend. .

  After placing the contact plate 14 on the bottom surface 23 of the milk pack 22, the blade edge 15 of the cutting blade 8 is inserted into the side surface 24 on the upper side of the milk pack 22 while closing both the handles 6, 17 to make a cut. The cutting blade 8 is elastically biased in the direction opposite to the direction of cutting into the milk pack 22 while rotating. When the handles 6 and 17 are closed, the rubbing portion 21 of the cutting blade 8 moves while rubbing on the upper edge 20 of the handle portion 18 so that the cutting blade 8 resists the urging force of the wire spring 12. Rotate around. Since the cutting edge 31 of the cutting blade 8 is formed on the front side of the cutting blade 8 in the clockwise direction, it is as if cutting the bread while moving the knife back and forth to facilitate cutting. The cutting blade 8 is cut while moving independently with respect to the side surface 24 on the upper side of the milk pack 22. Therefore, the cut can be made smoothly and easily. The bottom of the milk pack 22 is thicker than the other surface because the paper is folded, but the cutting blade 8 and the backing plate 14 are attached with an interval corresponding to the thickness of the handle 5. The cutting can be performed without being affected by the thickness of the bottom of the milk pack 22.

As shown in FIG. 4, the cutting edge 8 of the cutting blade 8 is in a position close to the handle 6 with both the handles 6, 17 open, and substantially coincides with the left end of the contact plate 14. Therefore, the incision to be made in the side surface 24 on the upper side of the milk pack 22 is put in a position close to the folding ridge line 28 between the side surface 24 and the adjacent side surface 30. When the handles 6, 17 are fully closed, the cutting edge 15 and the cutting edge 31 of the cutting blade 8 are not exposed because they are along the backing plate 14 and the handle portion 5, and the cutting edge 15 protrudes from the outer edge of the backing plate 14. Safe without having to. After making a cut in the side surface 24 on the upper side, the cutting blade 8 is pulled out. Next, the heel 1 is changed, and a finger is inserted into the handles 6 and 17 from the front side to the back side in FIG. Then, the cutting blade 7 is inserted into the incision, and the side surface of the milk pack 22 is cut over the entire circumference. At this time, the incision is made at a position close to the folding ridge line 28 with the adjacent side surface 30 as described above, so that the cutting starts from the end of the side surface 24 on the upper side. The bottom of the milk pack 22 can be cut off by sequentially cutting the four side surfaces from this end. If the cut is made near the center of the side surface, the side surface to be cut first is cut by half, and the cutting blade moves to the second side surface. For this reason, after cutting the fourth side surface, it is necessary to cut again the first side surface that has been left uncut, so it takes time, but by cutting from the end of the side surface 24 on the upper side, such time and labor is required. Can be omitted. When cutting as a scissors using the cutting blades 7 and 19, the middle finger, the ring finger and the little finger are inserted into the handle 17, and the index finger is used by being directed to the finger contact portion 32 formed at the front portion of the handle 17. You can also. At that time, the cutting edge 1 of the cutting blade 8
In order to prevent the index finger from being damaged by 5, the cutting blade 8 is attached to one handle portion 5. By separating the bottom of the milk pack 22, the milk pack 22 can be crushed and easily flattened, and is not bulky when the milk pack 22 is discarded. The present invention can also be used for other containers such as paper packs other than milk packs, PET bottles, and tissue paper boxes.

FIG. 7 is a diagram illustrating a state where the milk pack 22 is cut. The cutting blade 8 and the contact plate 14 are attached with an interval corresponding to the thickness of the handle 5. Thereby, when the cut is made in the milk pack 22, the cut can be made at a position separated from the bottom surface 23 of the milk pack 22 by the thickness of the handle 5. The thicknesses of the cutting blades 7 and 19 are equal to the thickness of the handle 5. Accordingly, when the cutting operation is started after the cutting blade 7 is inserted, the cutting blade 19 is positioned between the cutting blade 7 and the ridge line 25, so that the cutting blade 19 advances along the ridge line 25. In this way, if the cutting blade 19 is cut along one side of the milk pack 22 along the other ridgelines, the cutting can be finished with the first cutting blade 7 inserted, and the bottom of the milk pack 22 is removed. It can be separated cleanly. Further, as apparent from FIG. 7, the cutting blade 7 is biased to the left side in FIG. 7 by the thickness of the handle portion 5 with respect to the handle portion 5 to which it is attached, and the cutting blade 19 is attached thereto. The pattern portion 18 is biased to the left side in FIG. Therefore, since the cutting blades 7 and 19 are close to the left side, the right side of the cutting blade 19 is easy to see. Thus, when the milk pack 22 is cut, the cutting is performed along the ridge line 25 while viewing the ridge line 25 adjacent to the cutting blade 19, but the ridge line is not obstructed by the cutting blade 19 when viewing the ridge line 25. 25 can be seen. Thereby, the bottom part of the milk pack 22 can be separated cleanly while tracing the ridge line 25.

FIG. 8 is a view showing a method of developing the used milk pack 22 by the basket 1 of the present embodiment. First, a cut 34 is opened in the used milk pack 22. Next, the opening 35 which has been closed except for the spout is completely opened. Next, the milk pack 22 is cut in the direction of arrow A from the opening 35 side end along the ridge line 28 by the cutting blades 7 and 19. After cutting up to the notch 34, the direction of ridge 1 is directed to the direction of arrow B. At that time, since the intersection of the blade edges of the cutting blades 7 and 19 is inside the notch 34, the direction of the scissors 1 can be easily changed. Next, the milk pack 22 is cut in the direction of arrow B along the ridge line 25. Further, the milk pack 22 is cut along the ridge line 36, and the milk pack 22 is cut along the lower ridge line 37 shown in FIG. By this cutting operation, the milk pack 22 can be unfolded as shown in FIG. The developed milk pack 22 can also be used as an instant mortarboard.

  In addition, this invention can take a various aspect based on the structure mentioned above. For example, in FIG. 3, a locking member (not shown) is slid in the front-rear direction so that the portion closest to the cutting blade 8 of the handle 6, that is, the tip portion of the handle 6 can be projected and retracted from the tip of the handle 6. The notch blade 8 is provided with a notch (not shown) for receiving the projecting locking member when the locking member is attached and protruded from the tip of the handle 6. The rotation may be locked. When locked, for example, a thin seal covering the mouth of a glass bottle containing a tablet can be cut over the entire circumference. Since the mouth of the glass bottle is relatively small, it is rather easy to handle if the cutting blade 8 is locked. In this case, the cutting blade 8 cuts the seal and cuts the seal as a cutting blade. In addition, the cutting blade 8 and the contact plate 14 may be attached to the other handle portion without being attached to the same handle portion. Alternatively, the cutting blade may be formed integrally with the other handle portion. Further, when the handles 6 and 17 are closed, the cutting blade 8 is safe because it follows the backing plate 14, but in order to further enhance safety, a cap that can cover the cutting blade 8 and the backing plate 14 is attached and detached. It is good also as a structure attached freely. The device of the present invention is not limited to a scissors, and may be any device that can implement the present invention. Therefore, the member is not limited to the member as the bag part, and any member that can carry out the present invention may be used. The pair of members is not limited to the configuration in which the pair of members is rotatably coupled around the support shaft in the vicinity of the center of the members as in the present embodiment, and may be any configuration capable of implementing the present invention. For example, you may couple | bond together the edge parts of a pair of member with a spindle so that rotation is possible. The handles are not limited to those formed in a finger ring shape, both handles may be rod-shaped, and only one handle may be a finger ring.

  With the cutting blade and the backing plate, it is possible to safely and surely cut the container such as a milk pack.

1 鋏 2 member 3 member 4 first support shaft 5 handle 6 handle 7 cutting blade 8 cutting blade 9 second support shaft 10 spring mounting protrusion 11 spring hole 12 wire spring 13 linear portion 14 contact plate 15 cutting edge 16 outer edge 17 Handle 18 Handle portion 19 Cutting edge 20 Upper edge 21 Rub portion 22 Milk pack 23 Bottom surface 24 Upper side surface 25 Bending ridge line 26 Front side end portion 27 Opposite end portion 28 Bending ridge line 29 Corner portion 30 Adjacent side surface 31 Cutting edge 32 Finger rest 33 Contact surface 34 Notch 35 Opening 36 Ridge line 37 Lower ridge line

Claims (6)

An instrument capable of making a cut into a container, having a backing plate portion and a cutting blade, the backing plate portion having a contact surface capable of contacting the surface of the container, An instrument having a cutting edge for cutting the cutting blade into the surface of the container, and the cutting edge has an interval with respect to a surface constituted by the contact surface of the abutting plate portion. In order to make a cut in another surface having an angle with respect to the predetermined surface with which the contact surface is in contact with at least a part of the contact surface being in contact with the predetermined surface of the container, The instrument according to claim 1, wherein the cutting blade can be moved so that the cutting edge of the cutting blade is cut into the other surface. The instrument according to claim 1 or 2, wherein the cutting blade is relatively movable with respect to the contact plate portion. A pair of members are coupled by the support shafts so as to be relatively rotatable about the support shafts, each member has a handle, and one member is provided with a backing plate, and the handles of both members The instrument according to claim 3, wherein the cutting blade moves relative to the backing plate portion when the blade is closed from the opened state. Both the backing plate and the cutting blade are provided on one member, and when the handles of both members are closed from the open state, the cutting blade is pressed against the other member and is relative to the one member. The instrument of claim 4 wherein the instrument moves in a moving manner. An instrument capable of making a cut into a container, wherein a pair of members each having a handle are coupled by a support shaft so as to be relatively rotatable about the support shaft, and the instrument is a base plate portion and a cutting blade The cutting blade is movable relative to the contact plate portion, the contact plate portion has a contact surface capable of contacting the surface of the container, and the cutting blade The blade has a cutting edge for cutting the blade into the surface of the container, and the cutting edge is spaced from the surface formed by the contact surface of the abutting plate portion and extends in the direction opposite to the handle of each member. The instrument is characterized in that the part extends ahead of the support shaft, the extended part is formed on a cutting blade, and the instrument is formed on a scissors.

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