JPH1119341A - Scissors - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve how to use scissors, by enabling a pair of scissors to be appropriately available for a plurality of cutting purposes, without the inconveniences of preparing or a multiplicity of scissors or switching a plurality of scissors according to the purpose of a use. SOLUTION: These scissors comprise a first blade body 1, a second blade body 2 and a third blade body 3 placed to the both sides of the first blade 1 so as to put the first blade body 1 between the second blade body 2 and the third blade body 3, and a connecting means 5 for connecting the second blade body 2 and the third blade body 3 with the first blade body 1 so as to be able to rotate relatively. The scissors are formed so that either the motion of the second blade body 2 rotating relatively against the first blade body 1 or the motion of the third blade body 3 rotating relatively against the first blade body 1 can be selected. First cutting blades 4a, 4a' are formed on one side of the first blade body 1 and one side of the second blade body 2 facing to the one side of the first blade body 1, respectively, and second cutting blades 4b, 4b' different from the first cutting blades 4a, 4a' are formed on another side of the first blade body 1 and one side of the third blade body 3 facing to the other side of the first blade body 1, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to scissors used for cutting desired articles or members such as cloth and paper.

[0002]

Conventionally, there are various types of scissors of this type, and each of these conventional scissors has a structure in which two blades are rotatably operated. I was Therefore, in the conventional scissors, only one set of cutting blades is constituted by two blades, and in many cases, one scissor cannot be appropriately used for a plurality of different applications. For this reason, conventionally, for example, when performing two kinds of different cutting operations using scissors, it is necessary to prepare two scissors suitable for each use in advance, which is inconvenient.

[0003] More specifically, in the field of sewing work, for example, as a mode of cutting a fabric, there are a case where a cut line of the fabric is finished straight and a case where it is finished in a zigzag shape. That is, when the fabric is cut along the pattern, the cut is straightened. On the other hand, in the case where the cut of the fabric is prevented or the cut of the fabric is decorated, the cut is finished in a zigzag shape. Conventionally, the above 2
When performing various types of cloth cutting operations, it is necessary to prepare so-called cutting scissors having a straight blade and a pinking scissors having a mountain-shaped cutting blade (pinking blade), and use these properly.

However, if the cutting scissors and the pinking scissors are purchased and prepared as described above, there is a problem that the purchase cost of these two scissors is extremely high. Further, even when these two scissors are stored in a sewing box or the like, the total size and weight of these two scissors become bulky, which causes inconvenience in handling. further,
In the means for selectively using two scissors, there is also a trouble that two scissors must be alternately held in accordance with the type of the cutting operation. Therefore, conventionally,
The scissors were inconvenient and there was still room for improvement in this regard.

The present invention was conceived under such circumstances, and one scissors can be suitably used for a plurality of cutting applications, thereby preparing a large number of scissors. It is an object of the present invention to eliminate the inconvenience of frequently changing a plurality of scissors in accordance with a work purpose and to improve the usability of the scissors.

[0006]

DISCLOSURE OF THE INVENTION In order to solve the above-mentioned problems, the present invention employs the following technical means.

According to the present invention, scissors are provided. The scissors include a first blade body, a second blade body and a third blade body arranged on both sides of the first blade body so as to sandwich the first blade body, a second blade body and a third blade body. Connecting means for connecting the blade body to the first blade body so as to be rotatable relative to the first blade body; and a relative rotation operation of the second blade body with respect to the first blade body and a third blade body with respect to the first blade body. One of the relative rotation operation of the first blade body and one side surface of the second blade body opposing the one side surface of the first blade body. One cutting blade is formed, and each of the other side surface of the first blade body and the one side surface of the third blade body facing the other side surface has a second type different from the first cutting blade. It is characterized in that a cutting blade is formed.

The scissors according to the present invention have three blades, a first blade, a second blade and a third blade, and the second blade with respect to the first blade. Either a relative rotation operation or a relative rotation operation of the third blade body with respect to the first blade body can be selected. Then, when the second blade body is relatively rotated with respect to the first blade body, a desired article or member is cut by the first cutting blade provided on each of the first blade body and the second blade body. Becomes possible. On the other hand, when the third blade body is relatively rotated with respect to the first blade body, desired articles are provided by the second cutting blades respectively provided on the first blade body and the third blade body. Alternatively, the member can be cut. On the other hand, the first and second cutting blades are different types of cutting blades.

Therefore, in the present invention, one scissor can be used for two kinds of cutting uses, that is, a cutting use using the first cutting blade and a cutting use using the second cutting blade. As a result, according to the present invention, unlike the related art, it is possible to eliminate or reduce the necessity of always preparing two scissors corresponding to predetermined two kinds of work purposes, and to purchase scissors. Can be reduced. In the present invention, 3
It is a rational configuration so that two types of cutting can be performed by one blade body, and the scissors according to the present invention can be made smaller than two conventional scissors.
Therefore, according to the present invention, when compared with the conventional case where two scissors are always prepared for two types of cutting work applications,
The bulkiness of the entire scissors at the time of storing and storing the scissors can be reduced, and the handling thereof can be improved. Further, in the present invention, since one scissor can be used for two types of cutting work applications, it is possible to eliminate the trouble of the user of the scissors changing two scissors one by one according to the cutting work application. Also, there is an effect that the usability can be significantly improved as compared with the related art. Of course, in the present invention, when the first blade body and the second blade body are relatively rotated to cut a desired article or member, the first blade body and the third blade body are cut.
Since the relative rotation operation with respect to the blade body can be prevented, a problem that a desired article or member to be cut by the first cutting blade is unduly cut by the second cutting blade does not occur. Can be

[0010] In a preferred embodiment of the present invention, the first cutting blade is a pinking blade and the second cutting blade is a second cutting blade.
The cutting blade can be configured to be a straight blade.

According to such a configuration, for example, when cutting a fabric, the cut edge of the fabric can be finished in a zigzag shape by using the first cutting blade as a pinking blade. If the second cutting blade is used, the cut can be straightened. Therefore, it is most suitable for applications such as cutting fabrics in the sewing field.

In another preferred embodiment of the present invention,
The first cutting blade and the second cutting blade may be configured to be pinching blades formed in different mountain shapes or straight blades formed in blades having different structures.

According to such a configuration, by using the first cutting blade and the second cutting blade selectively, the shape of the cut end can be finished to a different mountain shape, or the first cutting blade can be used as the first cutting blade.
An article or a member that is difficult to cut with a straight cutting blade can be appropriately cut by a second cutting blade of a different structure.

In another preferred embodiment of the present invention,
A handle portion provided at a base end of each of the second blade body and the third blade body so that the second blade body and the third blade body can be relatively rotated with respect to each other; A blade body switching fixing means which can be selectively switched to the second blade body and the third blade body and fixed so as not to rotate relatively can be provided.

According to such a configuration, when the first blade body is fixed to the second blade body so as not to rotate relative to the second blade body by the blade body switching / fixing means, the second blade body and the third blade body are fixed.
A first blade body fixed to the second blade body when the second blade body and the third blade body are rotated relative to each other while gripping a handle portion provided at each base end of the blade body; And the third blade body can be rotated relative to each other. In this case, a desired article or member can be cut using the second cutting blade formed on each of the first blade body and the third blade body. On the other hand, if the first blade body is fixed to the third blade body so that it cannot be rotated relative to the third blade body by the blade body switching / fixing means, the second blade body and the third blade body are rotated relative to each other. Thus, the first blade body and the second blade body can be rotated relative to each other. In this case, a desired article or member can be cut using the first cutting blade formed on each of the first blade body and the second blade body. Thus, in the end, according to the above configuration, the first blade body is connected to the second blade body using the blade body switching and fixing means.
Depending on which of the blade body and the third blade body is fixed, the first cutting blade and the second cutting blade can be selectively used, and the selection operation becomes easy. In addition, regardless of whether the first cutting blade or the second cutting blade is used, the user of the scissors can operate the handles provided on the second blade body and the third blade body, respectively. Because of the goodness, it is not necessary for the user of the scissors to release his / her hand from the handle, and an advantage that the operation when using the scissors can be further improved can be obtained.

In another preferred embodiment of the present invention,
The blade body switching fixing means is configured to control the second blade body and the third blade body together with the second blade body and the third blade body so that the second blade body and the third blade body cannot be relatively rotated in a direction in which their blade edge portions are opened. A configuration that can be fixed to one blade body can be adopted.

According to such a configuration, both the second blade and the third blade are fixed to the first blade by using the blade switching fixing means. It can be set so that the cutting edge of the three blades does not open. Therefore, it is possible to eliminate the necessity of separately using a cap or the like for preventing the cutting edge portion of the blade body from being opened carelessly when the scissors are not used,
The convenience when handling scissors can be further improved.

In another preferred embodiment of the present invention,
The blade body switching fixing means is a mechanism having a stopper body rotatably attached to the first blade body, and the second blade body has a mechanism when the stopper body is rotated in a predetermined direction. Engaging means is provided for engaging the stopper body so that the second blade body and the first blade body are fixed to each other. The stopper body is provided on the third blade body. The third blade body and the first blade body are provided with engaging means for engaging with the stopper body so that the third blade body and the first blade body are fixed to each other when rotated in a direction opposite to the direction. Can be.

According to such a configuration, when the stopper body rotatably attached to the first blade body is rotated in a predetermined direction, this stopper body is engaged with the engagement means of the second blade body. Thereby, the first blade body can be fixed to the second blade body so as not to rotate relatively. On the other hand, when the stopper body is rotated in the direction opposite to the predetermined direction, the stopper body is engaged with the engagement means of the third blade body, whereby the first blade body is relatively moved to the third blade body. It can be fixed so that it cannot rotate. Therefore, the operation of selecting whether to fix the first blade body to the second blade body or the third blade body can be extremely easily performed by a so-called one-touch operation only by rotating the stopper body. .

In another preferred embodiment of the present invention,
When the stopper body is set at a predetermined intermediate angle posture, the stopper body is fixed to the second
It is possible to adopt a configuration in which the engaging means of the blade body and the engaging means of the third blade body are engaged with each other.

According to such a configuration, when the stopper body is set at the predetermined intermediate angle posture, the stopper body is moved to the second position.
The engaging means of the blade body and the engaging means of the third blade body can be engaged with each other, so that the second blade body and the third blade body can be set so that they cannot rotate relative to each other. . Therefore, when the scissors are not used, it is possible to easily prevent the cutting edge portion of each blade body from being carelessly opened.

In another preferred embodiment of the present invention,
A plurality of concave portions and a locking member detachable from the plurality of concave portions are provided on one side surface portion of the first blade body and a side surface portion of the stopper body opposed to the one side surface portion. A position in which the stopper body independently engages with the engagement means of the second blade body, a position in which the stopper body engages with the respective engagement means of the second blade body and the third blade body, and The locking member engages with one of the plurality of concave portions when the stopper member is rotated to the respective angle of the position where the stopper member independently engages with the engagement means of the third blade body. It can be configured.

According to such a configuration, when the stopper body is rotated so as to independently engage with the engagement means of the second blade body, the stopper body is moved to the second blade body and the third blade body respectively. In both cases where the first blade is rotated so as to engage with the engaging means of the third blade body and when the stopper body is rotated so as to independently engage with the engaging means of the third blade body. The concave portion provided on the body and the stopper body and the locking member can be locked to each other, and when the stopper body is set to any of the above-described states, the stopper body is used for the first blade. It is possible to prevent inadvertent rotation with respect to the body. That is, even if a slight impact, vibration, or the like occurs on the scissors, an advantage that a predetermined setting state of the stopper body is easily released and changed by this can be solved.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be specifically described below with reference to the drawings.

FIG. 1 is a front view showing an example of scissors A according to the present invention. FIG. 2 is a plan view of FIG. FIG.
Fig. 2 is a left side view of Fig. 1. FIG. 4 is an enlarged sectional view taken along the line IV-IV of FIG. FIG. 5 is an exploded perspective view showing main components of the scissors A shown in FIG.

As shown in FIG. 5, the scissors A include a first blade 1, a second blade 2, a third blade 3,
It is provided with a connecting pin 5 for connecting the blade bodies 1 to 3 rotatably to each other, a nut 5A, a stopper body 6, and other predetermined members described later.

The first blade 1, the second blade 2, and the third blade
Each of the blade bodies 3 is formed, for example, by punching a stainless steel plate having a certain thickness into a predetermined shape, and then appropriately performing cutting or polishing on the member. The first blade body 1 has two side surfaces 10 opposed in the thickness direction.
The pinching blade 4a having a mountain shape in a plan view is formed along the longitudinal direction on the lower edge portion of one of the side surfaces 10a of the side walls 10a and 10b. A straight blade 4b is formed on the upper edge of the other side surface 10b along the longitudinal direction. In the vicinity of the base end of the first blade 1, a through hole 11 for inserting the connecting pin 5 is provided, and a screw hole 12 for mounting the stopper 6 and a first engagement recess 7a are provided. Is provided. As will be described later, the first engagement concave portion 7a is a portion for engaging the second engagement projection 62 of the stopper body 6, and is formed in an arc shape in a front view with one end opened.

The second blade 2 is provided on the upper edge of the side facing the side 10 a of the first blade 1 with the pinching blade 4.
In this embodiment, a pinking blade 4a 'that meshes with a is formed. A substantially central portion in the longitudinal direction of the second blade body 2 is provided with a through-hole 22 through which the connecting pin 5 can be inserted, and a second engaging portion is provided at a base end side of the through-hole 22. The joint recess 7b and the through-hole 23 are provided. The second engagement concave portion 7b is a portion for engaging the first engagement protrusion 61 of the stopper body 6, and is formed in a substantially arc shape in a front view with one end opened. The hole 23 is a portion for mounting a cover 9a described later. A ring-shaped handle 2 is provided at the base end of the second blade 2.
1 is provided. The handle portion 21 may be made of, for example, a synthetic resin. However, the present invention is not limited to this. For example, the metal portion at the base end of the second blade body 2 is processed into a substantially ring shape. For example, the substantially ring-shaped portion may be used as the handle. The same applies to the handle 31 of the third blade body 3 described later.

The third blade body 3 has a straight blade 4b 'corresponding to the straight blade 4b formed on the lower edge of one side surface of the first blade body 1 facing the side surface 10b. A through hole 32 for inserting the connecting pin 5 is also provided at a substantially central portion in the longitudinal direction of the third blade body 3, and a third engaging recess 7 c and a through hole-shaped hole are provided near the through hole 32. A part 33 is provided. Third engagement recess 7
c is a portion for engaging the second engagement projection 62 of the stopper body 6, and is substantially arc-shaped in a front view with one end opened like the first engagement recess 7 a of the first blade body 1. It is. The hole 33 is provided with a cover 9b to be described later in the third position.
This is a part to be attached to the blade body 3. A substantially ring-shaped handle portion 31 is provided at the base end of the third blade body 3.
The handle portion 31 and the handle portion 21 are portions operated by the user of the scissors A through the fingers. If the handle portions 21 and 31 are formed to have substantially the same size, the scissors A can be moved up or down. It is also suitable when gripping from the direction of.

The first blade 1, the second blade 2, and the third blade
Each of the blade bodies 3 is overlapped with each other so as to sandwich the first blade body 1 between the second blade body 2 and the third blade body 3, and then each of the through-holes 22, 11, and 32 is provided. After the connecting pins 5 are inserted in series, a nut 5A is screwed into a screw portion at the tip of the connecting pins 5, whereby the nuts 5A are connected to each other so as to be relatively rotatable. When connecting the three blades 1 to 3 as shown in FIG.
A synthetic resin collar 90 and a metal washer 91 are interposed between the second blade body 2 and the second blade body 2. These components serve as spacers for defining the dimension between the first blade body 1 and the second blade body 2. Further, the third blade body 3
A spring 92 is provided between the outer surface of the nut and the nut 5A. The spring 92 acts in a direction in which the straight blades 4b, 4b 'formed on the first blade body 1 and the third blade body 3 come into contact with each other, and the spring force acts on the straight blades 4b, 4b'. The rubbing condition is adjusted appropriately.

FIG. 6 shows the stopper body 6, and FIG. 6A is a front view thereof. FIG. 2B is a view similar to FIG.
FIG. 3C is a rear view of FIG. FIG. 4D is a sectional view taken along line VI-VI of FIG.

The stopper body 6 has a shape in which a donut-shaped stepped portion 63 is provided on one side surface of a plate portion 60 formed in a predetermined external shape. The joint projection 61 is provided so as to project, and the second engaging projection 62 is provided so as to project from the other side surface of the plate portion 60. The outer peripheral surfaces 64 and 64a at both upper and lower ends of the plate portion 60 are formed in an arc shape in a front view,
A large number of knurl grooves are provided on the surface. This is to reduce slippage between the outer peripheral surfaces 64 and 64a and the finger when the user of the scissors A rotates the stopper body 6 with the finger. The plate part 60 and the step part 6
A stepped hole 65 having a through-hole shape is provided substantially at the center of the front view 3. As shown in FIG. 4, the stopper body 6 has a screw body 93 inserted through the stepped hole 65,
The screw portion 93a at the tip of the screw body 93 is screwed into the screw hole 12 of the first blade body 1 so as to be rotatable about the screw body 93 with respect to the first blade body 1. . The tip end surface of the step 63 of the stopper body 6
When the second blade 2 is rotated about the connecting pin 5, the second blade 2 is brought into sliding contact with one side surface (inner side surface) of the second blade body 2 to guide the rotation operation of the second blade body 2. Can serve as.

The screw body 93 has a head 93c for preventing the stopper body 6 from coming off, and a step 93b connected to the head 93c, and the axial direction of the step 93b. Is larger than the thickness L2 of the portion of the stopper body 6 that fits into the step 93b. With such a configuration, the stopper body 6
It is possible to avoid being pinched between the head 93c of the screw body 93 and the side surface of the first blade body 1 by a strong force, and to smoothly rotate the stopper body 6. Note that, instead of the screw body 93 having the step portion 93b as described above, for example, as shown in FIG. 7, a structure using a screw body 93A having no step portion may be used. However, this screw body 93A
Means using a collar 9 corresponding to the step 93b.
4 must be used. Therefore, in order to reduce the number of parts, it is preferable to use the screw body 93 described above.

The first engaging projection 61 of the stopper body 6
When the stopper body 6 is rotated in a predetermined direction,
The second blade 2 can be engaged with the second engagement recess 7b, and is formed as a substantially arc-shaped projection in a front view substantially matching the shape of the second engagement recess 7b. In addition, the second
When the stopper body 6 is rotated in a direction opposite to the predetermined direction, the engagement projection 62 engages the third engagement recess 7c of the third blade body 3 with the first engagement member of the first blade body 1. Joint recess 7
a and the third engaging recess 7c
And a substantially arc-shaped projection as viewed from the front that substantially matches the shape of the first engaging recess 7a. When the first engagement projection 61 and the second engagement projection 62 are engaged by moving the first engagement projection 61 into a deep position of the second engagement recess 7b. Are located outside the third engagement recess 7c and the first engagement recess 7a so that they do not engage with each other. Conversely,
When the second engagement projection 62 is inserted into the deep position of the third engagement recess 7c and the first engagement recess 7a and engaged, the entire first engagement projection 61 becomes the second engagement recess 7b.
, So that they do not engage. However, when the stopper body 6 is set at a predetermined intermediate angle posture, a part of each of the two engagement projections 61 and 62 is a total of three engagement recesses 7a and 7b.
7c.

A recess 66 having a predetermined depth is provided on a side surface of the stopper body 6 facing the first blade body 1.
The recess 66 is a portion for accommodating the spring 81 and the ball 80 therein. The spring 81 and the ball 80 are members for constituting a detent mechanism for associating the stopper body 6 with the first blade body 1.
On one side surface of the blade 1, the first blade 1
There are provided a total of three concave portions 13a to 13c for engaging the ball 80 which has been urged in the direction of. These concave portions 13a to 13c are arranged such that a part of the ball 80 is engaged when the stopper body 6 is rotated to predetermined three positions as described later.

In the present invention, instead of the detent mechanism using the spring 81 and the ball 80, for example, FIG.
As shown in FIG. 7, the protrusion 67 may be provided on one side surface of the stopper body 6A, and the concave portion 14 for engaging the protrusion 67 may be provided on the side surface of the first blade body 1.
According to such a configuration, members such as the spring 81 and the ball 80 become unnecessary, so that the number of parts can be reduced and the assembling work of scissors can be facilitated.

As shown by the phantom line in FIG.
Then, a pair of cover bodies 9a and 9b are mounted on the outer surface of the second blade body 2 and the third blade body 3 as necessary. When these cover bodies 9a and 9b are mounted, for example, the shaft portions 99a and 99b formed on the cover bodies 9a and 9b are attached to the second blade body 2 and the third blade body 3 respectively.
It can be easily performed by fitting into the holes 23 and 33 of. When the cover members 9a and 9b are mounted, both sides of the mounting portion of the stopper body 6 can be covered and concealed, and the appearance of the scissors A can be improved.

Next, an example of use of the scissors A and the operation thereof will be described.

When the scissors A are used, first, as shown in FIG. 8A, when the stopper body 6 is rotated so as to push down the upper portion of the stopper body 6 forward (in the direction of arrow N1), the stopper First engagement projection 61 of body 6
Can be set so as not to be engaged with the second engagement concave portion 7b of the second blade body 2. On the other hand, as shown in FIG. 4B, the second engaging projections 62 of the stopper body 6 have the third engaging recess 7c of the third blade body 3 and the first blade body 1.
Can be simultaneously engaged with each of the first engaging recesses 7a. In such a setting state, the first blade body 1 and the third blade body 3 are fixed to each other so that they cannot rotate relative to each other. Therefore, as shown in FIG.
When the gripper 31 is gripped and operated, the second blade body 2 can be relatively rotated with respect to each of the first blade body 1 and the third blade body 3 fixed to each other, and the pinking blade 4 of the second blade body 2 can be rotated.
a ′ and the pinking blade 4a of the first blade body 1 can be rubbed against each other. For this reason, in the above-mentioned scissors A, as a first use mode, one set of the pinking blades 4a,
By using 4a ', it is possible to cut a cloth or the like having a zigzag cut.

When cutting cloth or the like using the above-mentioned pinking blades 4a, 4a ', the first blade body 1 and the third blade body 3 are configured so as to be unable to rotate relative to each other.
There is no inconvenience that a predetermined cloth or the like is unduly cut by the straight blades 4b, 4b 'formed on the first blade body 1 and the third blade body 3. Further, in the setting state, as shown in FIG. 8A, the ball 80 of the detent mechanism engages with the concave portion 13c of the first blade body 1. Therefore, the stopper body 6 is held at a predetermined angle by these engagement actions. For example, even when the scissors A are roughly handled, the angle of the stopper body 6 is reduced. It is possible to eliminate such a problem that it is easily changed.

Next, as shown in FIG. 10A, when the stopper body 6 is rotated so that the upper part of the stopper body 6 is pulled backward (in the direction of arrow N2), the first engagement of the stopper body 6 is started. The joint projection 61 can be engaged with the second engagement concave portion 7b of the second blade body 2. On the other hand, as shown in FIG. 3B, the second engagement projections 62 of the stopper body 6 are provided with the third engagement recesses 7c of the third blade body 3 and the first engagement projections of the first blade body 1. It can be set so as not to be engaged with the concave portion 7a. In such a setting state, the first blade body 1 can be fixed to the second blade body 2 so as not to be relatively rotatable, and each of the first blade body 1 and the second blade body 2 fixed to each other. , The third blade body 3 can be relatively rotated. Therefore, as shown in FIG. 11, the straight blades 4b and 4b 'provided on the first blade body 1 and the third blade body 3 can be rubbed against each other. That is, in this scissors A, as a second use mode, a pair of straight blades 4b and 4b 'are used,
It is possible to cut a fabric or the like to make a straight cut. In this case, as shown in FIG. 10A, the ball 80 of the detent mechanism engages with the concave portion 13a of the first blade body 1. Therefore, it is possible to prevent the stopper body 6 from rotating carelessly.

As described above, in the above-mentioned scissors A, only by rotating the stopper body 6, the pinching blades 4a,
4a 'and the straight blades 4b, 4b' can be arbitrarily selected. Therefore, without using two types of scissors, such as pinking scissors and straight scissors, it is possible to finish the cut of the fabric in either a straight or zigzag form simply by using the scissors A. Become. In particular, in the above-mentioned scissors A, since the user of this scissors A only needs to rotate the stopper body 6 with his or her fingers passing through the pair of handle portions 21 and 31, the switching operation is further facilitated, and the convenience is improved. Can be further increased.

Further, when the scissors A are not used, as shown in FIG. 12A, the stopper body 6 is set at a predetermined intermediate angle posture. With such a setting, a part of the first engaging projection 61 of the stopper body 6 can be engaged with the second engaging concave portion 7b of the second blade body 2, and as shown in FIG. As shown, a part of the second engaging projection 62 can be engaged with the third engaging concave portion 7c of the third blade body and the first engaging concave portion 7a of the first blade body 1. Therefore, in such a setting state, each of the second blade body 2 and the third blade body 3 can be fixed to the first blade body 1 so that they cannot rotate relative to each other. Can be held so that the respective tip portions (cutting edge portions) do not open each other. As a result, when the scissors A are not used, it is not necessary to separately use a cap or the like for preventing the tip of each blade body from being opened carelessly. Also, in the setting state shown in FIG.
The ball 80 of the detent mechanism is moved to the concave portion 13 of the first blade 1.
b, the stopper 6
Can be appropriately held at a predetermined angle, and it is possible to more reliably prevent the cutting edge portion of each blade body from being opened carelessly.

In the above-described embodiment, an example is described in which two types of cutting blades, ie, a pinking blade and a straight blade, can be switched and used, but the present invention is not limited to this. In the present invention, both the first cutting blade and the second cutting blade may be pinching blades. In this case, these two pinking blades are formed in mutually different mountain shapes, for example, a configuration in which one of the pinking blades is an angular mountain shape and the other pinking blade is a rounded mountain shape blade. can do. Further, although the shape of the pinking blades is the same, a configuration in which the pitch intervals of the chevron portions are different may be employed. Further, in the present invention, both the first cutting blade and the second cutting blade may be straight blades. in this case,
While one of the cutting blades is a straight blade for cutting fabric,
The other cutting blade may be a straight blade for cutting paper.
As described above, the first cutting blade and the second cutting blade of the present invention only need to be configured as different types of cutting blades, and specific types and configuration differences are particularly limited. Not something.

Further, in the above-described embodiment, the blades constituting the cutting blade are configured to include only the first blade, the second blade, and the third blade in total. However, the present invention is not limited to this. In the present invention, for example, in addition to the above-mentioned three blades, a fourth blade is provided, and the fourth blade and the second blade, or the fourth blade and the third blade are provided with a third blade. May be formed. As described above, in the present invention, whether to additionally provide another blade body with respect to the three blade bodies is a matter which can be arbitrarily selected, and in the case where another blade body is additionally provided. Even so, it is included in the technical scope of the present invention.

In addition, the specific configuration of each part of the scissors according to the present invention can be variously modified. Of course, the specific use of the scissors according to the present invention is not limited to sewing use, and it goes without saying that the scissors can be configured as scissors for various other uses.

[Brief description of the drawings]

FIG. 1 is a front view showing an example of scissors according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a left side view of FIG.

FIG. 4 is an enlarged sectional view taken along the line IV-IV of FIG. 1;

FIG. 5 is an exploded perspective view showing main components of the scissors shown in FIG. 1;

FIG. 6A is a front view showing an example of a stopper body used for the scissors according to the present invention, and FIG.
It is a side view of (a), (c) is a rear view of (a), (d) is a VI-VI sectional view of (a).

FIG. 7 is an enlarged sectional view of a main part showing another configuration example of a mounting portion of a scissor stopper body according to the present invention.

FIG. 8A is a front view of a main part showing an example of an operation state of a stopper body, and FIG. 8B is a rear view of the main part.

FIG. 9 is a perspective view showing an example of use of the scissors shown in FIG. 1;

10A is a front view of a main part showing another example of an operation state of the stopper body, and FIG. 10B is a rear view of the main part.

FIG. 11 is a perspective view showing another example of use of the scissors shown in FIG. 1;

12A is a main part front view showing another example of the operation state of the stopper body, and FIG. 12B is a main part rear view thereof.

[Explanation of symbols]

 A scissors 1 first blade body 2 second blade body 3 third blade body 4a, 4a 'pinking blade (first cutting blade) 4b, 4b' straight blade (second cutting blade) 5 connecting pin 5A nut 6 stopper body 7b Second engaging concave portion (engaging means) 7c Third engaging concave portion (engaging means) 13a to 13c Recessed portion 21 Handle portion 31 Handle portion 61 First engagement protrusion 62 Second engagement protrusion 80 Ball (locking member) )

Claims (8)

[Claims] 1. A first blade, a second blade and a third blade disposed on both sides of the first blade so as to sandwich the first blade, a second blade and a second blade. Connecting means for connecting the three blades relative to the first blade so as to be rotatable relative to each other, and a relative rotation operation of the second blade relative to the first blade and a third blade relative to the first blade; One of the relative rotation operation of the body is configured to be selectable, and one side of the first blade body and the second side facing the one side.
A first cutting blade is formed on each one side surface of the blade body, and each of the other side surface of the first blade body and the one side surface of the third blade body facing the other side surface is formed of the first cutting blade. First
A scissors, wherein a second cutting blade of a type different from the cutting blade is formed. 2. The scissors according to claim 1, wherein the first cutting blade is a pinking blade, and the second cutting blade is a straight blade. 3. The first cutting blade and the second cutting blade,
The scissors according to claim 1, wherein the scissors are pinking blades formed in different mountain shapes or straight blades formed in blades having different structures. 4. A handle portion provided at a base end of each of the second blade body and the third blade body so that the second blade body and the third blade body can be operated to rotate relative to each other; 4. A blade body switching fixing means which is capable of selectively switching the blade body with respect to the second blade body and the third blade body and fixing the blade body so that the blade body cannot rotate relative to the second blade body and the third blade body. The described scissors. 5. The blade body switching and fixing means includes a second blade body and a third blade body which are not rotatable relative to each other in a direction in which a blade edge portion of the second blade body and the third blade body are opened. The scissors according to claim 4, wherein each can be fixed to the first blade body. 6. The blade body switching and fixing means is a mechanism having a stopper body rotatably attached to the first blade body, and the stopper body rotates in a predetermined direction on the second blade body. Engaging means for engaging the stopper body is provided so that the second blade body and the first blade body are fixed to each other when operated, and the third blade body has
Engaging means is provided for engaging the stopper body so that the third blade body and the first blade body are fixed to each other when the stopper body is rotated in a direction opposite to the predetermined direction. The scissors according to claim 4 or 5, wherein 7. The blade body switching / fixing means, wherein when the stopper body is set at a predetermined intermediate angle posture, the stopper body is provided with an engagement means for the second blade body and an engagement means for the third blade body. 7. The scissors according to claim 6, wherein the scissors are configured to engage with each of the. 8. A plurality of concave portions and a locking member capable of engaging and disengaging with the plurality of concave portions are provided on one side surface portion of the first blade body and a side surface portion of the stopper body opposed to the one side surface portion. A position where the stopper body is independently engaged with the engagement means of the second blade body, and the stopper body is engaged with respective engagement means of the second blade body and the third blade body. The locking member engages with one of the plurality of concave portions when the stopper member is rotated to the respective angles of a position at which the stopper body engages with the engagement means of the third blade body alone. The scissors of claim 7, wherein the scissors are configured to enter.