JP2008086484A - Scissors - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide scissors which can continuously and smoothly conduct cutting activity without causing any catch at the tip ends of blades when opening blade sections. <P>SOLUTION: Scissors can form concave and convex cutting surface on the cutting edge of a material to be cut when cutting the material to be cut by a pair of blades formed in a corrugated concavo-convex surface and being engaged with each other. The scissors are provided with stoppers which can stop the movement of the blades in a state where the tip ends of the pair of blades are engaged with each other to prevent the blades from getting over each other when the pair of such blades closes by approaching each other for cutting the material to be cut. The stoppers are disposed at respective tip ends of the pair of blades so that they are allowed to make impact contact with the blade section of the closing counterpart. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  According to the present invention, a pair of blade portions formed in a planar corrugated corrugation mesh with each other, so that when the workpiece is cut, an uneven cutting trace can be formed on the cutting edge of the workpiece. In particular, when the blade portion is closed, the blade portion is prevented from being disengaged, and when the blade portion is opened, the blade portions are not caught and the cutting operation can be performed continuously and smoothly. It can be related to candy.

Conventionally, there is a so-called pinking kite as a kite for home work.
The pinking rod has a blade portion formed in a thin plate shape formed into a corrugated flat surface, and when the material to be cut such as paper is cut, the cutting edge portion of the object to be cut is uneven. In general, it is used for cutting so-called kraft paper.

However, the above-mentioned pinking ridge is different from a normal ridge that cuts an object to be cut when the pair of blade portions rub against each other, and is configured to cut the paper when the pair of blade portions formed in a thin plate shape mesh with each other. Therefore, the pair of blade portions are arranged to face each other.
Therefore, when the blade portion is closed in order to cut an object to be cut such as paper or cloth, the blade portion is engaged with the tip portion due to bending in the length direction of the blade portion. The blade does not stop at the final position, and the one blade portion gets over the other blade portion, and the one blade portion and the other blade portion are engaged with each other on the back side of the blade portion. As a result, the blade portion cannot be opened and closed. There was a case.

  As a result, when the pair of blades are opened and returned in the opposite direction, the edges of the blades are caught with each other to prevent smooth opening and the cutting operation cannot be performed continuously. .

  Therefore, the problem of the present invention is that when the blade is closed and the workpiece is cut, one blade at the tip of the blade gets over the other blade and is engaged with each other on the back side. An object of the present invention is to provide a scissors that can prevent a situation where the blade part cannot be opened and closed and can continuously and smoothly perform the cutting operation.

Conventionally, wrinkles such as those described in Patent Document 1 and Patent Document 2 are known.
Japanese Utility Model Publication 2-46837 Japanese Utility Model Publication No. 5-34629

  The scissors described in Patent Document 1 are configured such that a projection is fixed to the tip of one blade back where two blade portions contact, and the other blade portion stops there when cut down. However, the problem is that even if it is cut down to the tip of the blade part, the tip does not come off from the paper cut end, and the paper can be pressed by the tip, which is different from the bag of the present invention. ing.

The scissors described in Patent Document 2 are pinking scissors, which have pink portions for forming a predetermined pattern on an object to be cut in a pair of cutting blade portions, and the pink portions are integrally formed. The guide member is integrally provided at the tip of the cutting blade portion, and the guide surface of the guide member is close to the meshing surface of the pink portion positioned at the tip of the cutting blade portion provided with the guide member. It is configured in a substantially arc shape with the rotation center of the cutting edge as the center.
The problem with the pinking ridge is that the continuous engagement necessary for the pink portion is performed by the guide member, and the engagement of each pink portion is easily eliminated when the heel is closed, and the operational feeling during use is lightened. Is to make it.
Accordingly, unlike the case of preventing the situation where one blade portion gets over the other blade portion and cannot be opened and closed like the present invention, even if the pink portion is disengaged, the guide member does not The pink part smoothly meshes again by guiding the part.

  In order to solve the above-described problems, the scissors according to the present invention have a cutting edge portion of a material to be cut when the material to be cut is cut by a pair of blade portions formed in a corrugated plane shape engaging each other. The pair of blades close to each other and close when the pair of blades are cut in order to cut the material to be cut. A stopper is provided that can prevent a situation where one blade crosses over the other blade by stopping the movement of the blade when the blade reaches the same position in the length direction. And

  That is, in the scissors according to the present invention, when the pair of blade portions close to each other and close, the tip portions of the pair of blade portions reach the same position in the length direction of the blade portions. In this state, the movement of the blade portion is stopped by the stopper. Thereby, the situation where one blade part tip part gets over the other blade part tip part is prevented.

  Further, the scissors according to the present invention are characterized in that the stopper is disposed at a tip of the pair of blade portions so as to be in contact with the other blade portion that is closed.

  That is, in the scissors according to the present invention, the stopper is configured such that when the pair of blade portions close to each other and closes, the tip portions of the pair of blade portions are in the length direction of the blade portions. It is arranged so that it can come into contact with the blade portion in a state where it reaches the same position.

  Moreover, the said scissors which concern on this invention are arrange | positioned so that a pair of said blade part may mutually oppose in the direction orthogonal to the closing and opening direction, and the said stopper protrudes toward the opposing blade part. It is provided in a state.

  That is, in the scissors according to the present invention, since the stopper is provided in a state of projecting toward the facing blade portion, when the pair of blade portions are closed, the blade portion is It is possible to reliably contact the stopper.

  In the scissors according to the present invention, the blade portion is formed of a metal material integrally with the mounting plate portion and bent at a right angle to the mounting plate portion, and the mounting plate portion is gripped by a plastic material. The stopper is fixed to a blade body holding portion that is rotatably provided integrally with the portion, and one side surface portion of the stopper is bonded and fixed to a side surface portion of the blade portion in the anti-closing direction, and the other one side surface portion. Is bonded and fixed to the mounting plate portion.

That is, in the scissors according to the present invention, since the stopper is fixed to the side surface portion in the counter-closing direction with respect to the blade portion, the stopper is moved when the pair of blade portions close to each other. It does not get in the way.
When the blade comes into contact with the stopper, it receives a force in the direction of peeling from the blade, but the stopper is also fixed to the mounting plate, and the two side surfaces are bonded and fixed. Since it is strengthened, it does not peel off from the blade portion practically.

  In the bag according to the present invention, the stopper is made of a synthetic resin.

  That is, in the above-described scissors according to the present invention, the stopper is formed of a material different from the metal blade portion. Since the stopper is formed of a synthetic resin, an unpleasant sound such as a metal sound when a metal hits the metal does not occur when the metal blade hits the stopper.

The scissors according to the present invention as set forth in claim 1, when a pair of blade portions formed in a corrugated flat surface are engaged with each other to cut the material to be cut, the cutting edge of the material to be cut is uneven. A pair of the blade portions close to each other and close when the pair of blade portions are cut in order to cut the material to be cut. Since the stopper that can prevent the situation where one blade portion gets over the other blade portion is provided by stopping the movement of the blade portion in the state where it reaches the same position in the length direction,
In order to cut the workpiece, when the pair of blade parts are moved close to each other and closed, the edge of the pair of blade parts reaches the same position in the length direction of the blade part, and the blade The part is stopped by the stopper. Thereby, since a pair of said blade part cannot move any more, a meshing state does not come off by crossing apart.
Accordingly, when the pair of blade portions are opened again, the opening is not hindered by the edges of the blade portions being caught over each other, so that the cutting operation can be performed continuously and smoothly.

  In the scissors according to the second aspect of the present invention, since the stopper is disposed at the tip of the pair of blade portions so as to be in contact with the other blade portion that is closed, the blade portion is When the stopper comes into contact with the blade portion in the engaged state, the movement of the blade portion can be reliably stopped. Further, even when one of the stoppers is removed, the other stopper is present and the blade portion can be prevented from moving, so that the engagement state of the tip portion of the blade portion can be maintained.

  According to a third aspect of the present invention, in the scissors according to the present invention, the pair of blade portions are arranged to face each other in a direction orthogonal to the closing and opening directions, and the stopper faces the facing blade portions. Since it is provided in a projecting state, when the blade part is closed and the tip part meshes, the blade part can reliably contact the stopper, and the protruding part of the stopper is the blade part Since the blade is brought into contact with the blade portion at the meshing position of the tip portion, it is possible to reliably prevent the meshing state from being released.

According to a fourth aspect of the present invention, in the scissors according to the present invention, the blade portion is formed of a metal material integrally with the mounting plate portion and bent at a right angle with respect to the mounting plate portion, and the mounting plate portion is made of a plastic material. The stopper is fixed to a blade body holding portion that is rotatably provided integrally with the grip portion, and one side surface portion of the stopper is bonded and fixed to a side surface portion in the counter-closing direction of the blade portion. Since the side part is adhesively fixed to the mounting plate part,
The blade portion can be easily formed and attached, the stopper can be easily attached, and the stopper can be firmly fixed.

In the bag according to the present invention described in claim 5, since the stopper is formed of a synthetic resin,
The impact when the blade comes into contact with the stopper can be alleviated, and the operational feeling can be lightened.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 2, the scissors 11 according to the present embodiment cut a material to be cut such as kraft paper or cloth when a pair of blade portions 12 and 13 formed in a corrugated plane shape mesh with each other. In this case, it is possible to form an uneven cut mark on the cutting edge of the material to be cut, and the pair of blade portions 12 and 13 cut the material to be cut as shown in FIG. As shown in FIGS. 3 and 5, the tip portions of the pair of blade portions 12, 13 reach the same position in the length direction of the blade portions 12, 13 when closing close to each other. In addition, stoppers 23 and 24 are provided that can prevent the situation where one blade portion 12 gets over the other blade portion 13 by stopping the movement of the blade portions 12 and 13.

  As shown in FIG. 4, the stoppers 23 and 24 are arranged at the tip portions of the pair of blade portions 12 and 13 so as to be in contact with the other blade portions 12 and 13 that close.

  The pair of blade portions 12 and 13 are arranged to face each other as shown in FIGS. 3 and 5 in a direction perpendicular to the closing and opening directions, and the stoppers 23.24 are opposed to each other. It is provided in a state of projecting toward the blade portions 12 and 13.

  Further, as shown in FIG. 4, the blade portions 12 and 13 are formed of a metal material integrally with the mounting plate portions 25 and 26 and bent at a right angle with respect to the mounting plate portions 25 and 26. As shown in FIGS. 1 and 2, the plate portions 25 and 26 are fixed to blade body holding portions 18 and 19 provided by a plastic material so as to be rotatable integrally with the grip portions 14 and 15.

As shown in FIG. 4, the stoppers 23 and 24 have one side surface portions 31 and 31 bonded and fixed to the side surface portions 33 and 34 in the counter-closing direction of the blade portions 12 and 13, and the other one side surface. The portions 35 and 36 are bonded and fixed to the mounting plate portions 25 and 26. The stoppers 23 and 24 are made of synthetic resin.

The figure shows the bag 11 according to the embodiment.
The scissors 11 according to the present embodiment are so-called pinking scissors. As shown in FIG. 2, the pair of blade portions 12 and 13 formed in a corrugated plane shape mesh with each other to engage with each other. When the cutting material is cut, uneven cutting marks can be formed on the cutting edge of the material to be cut.

As shown in FIG. 2, the scissors 11 are different from the general scissors in the shape of the blade parts 12 and 13, but the other structures are the same.
That is, as shown in FIGS. 1 and 2, the heel 11 also has a pair of grip portions 14 and 15, holds the grip portions 14 and 15 with palms, and opens and closes the grip portions 14 and 15. By doing so, the blade parts 12 and 13 are also opened and closed, and a cut object such as paper or cloth can be cut when the blade parts 12 and 13 are closed.

As shown in FIG. 1, the grips 14 and 15 are formed to have holes 16 and 17 into which fingers can be inserted, respectively. As shown in FIG. 2, blade body holding portions 18 and 19 are superimposed on the grip portions 14 and 15 and fixed integrally.
The grip portions 14 and 15 and the blade body holding portions 18 and 19 are both formed of plastic.
As shown in FIGS. 1 and 2, the pair of grip portions 14, 15 and the blade body holding portions 18, 19 are fixed so as to be rotatable about a central portion in the length direction by a support shaft 20.
Therefore, both the grip portions 14 and 15 and the blade body holding portions 18 and 19 are configured to be openable and closable.

  As shown in FIG. 2, metal blades 21 and 22 are fixed to the inner surfaces of the blade holders 18 and 19, respectively. As shown in FIG. 4, the blade bodies 21 and 22 include the blade portions 12 and 13 and the mounting plate portions 25 and 26. The blade portions 12 and 13 and the mounting plate portions 25 and 26 are integrally formed. And bent at a right angle.

  As shown in FIG. 4, the attachment plates 25 and 26 are fixed to the blade holders 18 and 19 in the blades 21 and 22. Therefore, the blade bodies 21 and 22 can be opened and closed integrally with the grip portions 14 and 15.

As shown in FIGS. 2 and 4, sawtooth-shaped uneven portions 27 and 28 are formed on the blade portions 12 and 13. A pair of said blade parts 12 and 13 are arrange | positioned so that it may mutually oppose in the direction orthogonal to the direction to close and open, as shown in FIG.3 and FIG.5.
Therefore, when the blades 12 and 13 are closed, the workpieces such as paper and cloth can be cut at the time of crossing, and irregularities are formed in the cut traces.

  As shown in FIGS. 1 and 4, stoppers 23 and 24 are attached to the tip portions of the pair of blade portions 12 and 13, respectively. The stoppers 23 and 24 are made of synthetic resin.

  As shown in FIGS. 3 to 5, the stoppers 23 and 24 are arranged at the tip portions of the pair of blade portions 12 and 13 so as to be in contact with the other blade portions 12 and 13 that are closed. Yes. The stoppers 23 and 24 are provided in a state of projecting toward the opposed blade parts 12 and 13.

  As shown in FIG. 4, the stoppers 23, 24 have one side surface portions 31, 32 bonded and fixed to the side surface portions 33, 34 in the counter-closing direction of the blade portions 12, 13, and the other one side surface portion 35. , 36 are bonded and fixed to the mounting plate portions 25, 26.

Next, the operation of the above embodiment will be described.
When the pair of blade parts 12 and 13 are moved close to each other in order to cut the material to be cut, the pair of blade parts 12 and 13 are crossed and the blade parts 12 and 13 are crossed. When one blade portion 12 has overcome the position of the other blade portion 13 due to the bending of 13 or the like, when the pair of blade portions 12, 13 return in the opposite direction after cutting, that is, When the blades 12 and 13 are opened, the blades 12 and 13 are engaged with each other on the side surfaces 33 and 34 side in the counter-closing direction, and the blades 12 and 13 are hooked and smooth. There was a problem that the situation that the proper opening was hindered occurred.
However, in the scissors 11 according to the present embodiment, the stoppers 23 and 24 provided at the tip portions of the blade portions 12 and 13 respectively cause the blade portions 12 and 13 to move as shown in FIGS. Since it can be stopped at a predetermined position, that is, in a state where the tip portions of the pair of blade portions 12, 13 reach the same position in the length direction of the blade portions 12, 13, the blade portions 12, 13 Since the movement of the blade parts 12 and 13 is stopped by contact, a situation in which one blade part 12 gets over the other blade part 13 does not occur.
Therefore, when the pair of blade parts 12 and 13 are opened after cutting, the blade parts 12 and 13 are opened without being caught, so that a continuous cutting operation can be performed smoothly.

Further, as shown in FIG. 5, the stoppers 23 and 24 are arranged at the distal end portions of the pair of blade portions 12 and 13 so as to be able to abut against the other blade portions 12 and 13 that are closed. Therefore, the blade parts 12 and 13 come into contact with the stoppers 23 and 24 and stop reliably.
The pair of blade parts 12 and 13 are arranged to face each other in a direction orthogonal to the closing and opening directions, and the stoppers 23 and 24 protrude toward the facing blade parts 12 and 13. Therefore, the blade parts 12 and 13 can be reliably brought into contact with the stoppers 23 and 24.

In addition, as shown in FIG. 4, the stoppers 23 and 24 have one side surface portions 31 and 32 adhered and fixed to the side surface portions 33 and 34 in the counter-closing direction of the blade portions 12 and 13, and other stoppers 23 and 24. Since the one side surface portions 35 and 36 are bonded and fixed to the mounting plate portions 25 and 26, the fixing force of the stoppers 23 and 24 is strong, and the blade portions 12 and 13 come into contact with the stoppers 23 and 24. However, the stoppers 23 and 24 are not peeled off from the blade parts 12 and 13.
Further, since the stoppers 23 and 24 are made of synthetic resin, the impact when the blade portions 12 and 13 come into contact with the stoppers 23 and 24 is reduced.

  The present invention is applicable to scissors, particularly pinking scissors.

It is a front view of the state where the blade part of the scissors concerning the example of the present invention was closed. It is a side view of the state where the blade part of the scissors concerning the example of the present invention was closed. It is a top view of the state where the blade part of the scissors concerning the example of the present invention was closed. It is a perspective view which shows the front-end | tip part of the blade body of the scissors which concern on the Example of this invention. It is a top view which shows the state which closes from the state where the front-end | tip part of the blade part of the scissors concerning the Example of this invention opened.

Explanation of symbols

11 鋏 12 Blade portion 13 Blade portion 14 Grip portion 15 Grip portion 16 Long hole portion 17 Long hole portion 18 Blade body holding portion 19 Blade body holding portion 20 Support shaft 21 Blade body 22 Blade body 23 Stopper 24 Stopper 25 Mounting plate portion 26 Mounting plate portion 27 Uneven portion 28 Uneven portion 31 Stopper side portion 32 Stopper side portion 33 Blade portion side portion 34 Blade portion side portion 35 Stopper other side portion 36 Stopper other side portion

Claims (5)

When a pair of blade parts formed in a planar corrugated corrugation mesh with each other, when cutting the material to be cut, it should be possible to form an uneven cut mark on the cutting edge of the material to be cut,
When the pair of blade portions close to each other and close in order to cut the workpiece, the tip portions of the pair of blade portions reach the same position in the length direction of the blade portion. A hook provided with a stopper capable of preventing a situation where one blade portion gets over the other blade portion by stopping the movement of the blade portion.   The scissors according to claim 1, wherein the stopper is disposed at a tip end portion of the pair of blade portions so as to be in contact with the other blade portion that is closed.   The pair of blade portions are arranged so as to face each other in a direction orthogonal to the closing and opening directions, and the stopper is provided in a state of protruding toward the facing blade portions. The scissors according to claim 2.   The blade portion is formed of a metal material integrally with the mounting plate portion and bent at a right angle to the mounting plate portion, and the mounting plate portion is provided by a plastic material so as to be rotatable integrally with the grip portion. The stopper is fixed to the blade holding portion, and one side of the stopper is bonded and fixed to the side of the blade in the counter-closing direction, and the other side is bonded and fixed to the mounting plate. The scissors according to any one of claims 1 to 3, wherein   The bag according to any one of claims 1 to 4, wherein the stopper is made of a synthetic resin.

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