JP2015211742A - scissors - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide scissors capable of smoothly performing cutting movement.SOLUTION: The scissors have two scissor bodies 100 provided with cutting parts 110 comprising blades 111, gripping parts 130 comprising grips 131 and caulking parts 120, which are formed by being caulked by a caulking member 200 so that the two scissor bodies 100 can be mutually turned by the caulking member 200. In the blades 111 are formed curves so that an angle formed by the two blades 111 is continuously kept between 27° and 43° from a state where an angle formed by the two scissor bodies 100 is 30° until a state where the scissor bodies are closed. Further in the blade parts 110 are formed recesses, and the recesses extend to below the caulking member 200.

Description

  The present invention relates to a bag.

Amber has been used in various scenes since ancient times. For example, it is used in various scenes such as offices and homes. In addition, there is no time to enumerate the use of the bag for office use, cooking, sewing, barber / beauty, etc.
The scissors are generally configured by connecting two scissors with a caulking member so as to be rotatable with respect to each other. Each housing includes a blade portion on the distal end side having a blade along the inner side, a grip portion on the proximal end side having a handle, and a caulking portion positioned between the blade portion and the grip portion. The connection of the two housings by the above-described caulking members is performed at the caulking portions of both housings. The user inserts a finger into both grips of the two casings, and rotates the angle of the two casings so that the angle is changed from a large state to a small state, so that the user can rotate the blade portions of the two casings. It is possible to cut an object to be cut between the blades.

  The essential function of the scissors is to cut the object, but considering that there are women and children among the scissors users, the scissors can be cut lightly, that is, using scissors. Thus, there is a high demand for a kite that requires less force required by the user when cutting.

In order to obtain such a bag, the present inventor has conducted research.
First, as a result of the inventor's research on the reason why it becomes heavy when operating the bag, several causes have been found.
The first reason arises from the fact that the ease of cutting the object changes when the angle of the two housings is large and small. Normally, when the object is cut in the state where the angle between the bodies is large, that is, near the base of the blade part, the object may rotate so that the object escapes from the two blade parts sandwiching it. In some cases, it is difficult to cut the object.
The second reason is when the frictional force between the two housings becomes large. The two plates, which are usually plate-shaped, are configured to rotate with each other in a state in which they are in contact with each other without a gap, because the object is cut between the two blade portions. Therefore, when a foreign substance enters between two housings, the frictional force generated between the two bodies increases. For example, if the bowl is for office use, for example, when the adhesive tape is cut, a paste ball with glue balls may enter between the bowls, and if the bowl is for cooking, the bowl For example, a gel-like object having, for example, adhesive strength may enter. In such a case, it becomes difficult to cut the object with a small force.
However, there is no known trap that can solve both of these two problems.

  An object of this invention is to provide the scissors which can perform the operation | movement of cutting lightly.

The present invention has a blade portion on the tip side having a blade along the inner side, a grip portion on the base end side having a handle, and a caulking portion positioned between the blade portion and the grip portion, respectively. And a caulking member that caulks the two housings so as to be rotatable with respect to each other at the caulking portion of each housing.
The angle between the two blades in the two blades of the rod is always 27 ° from the angle of the two rods from 30 ° to the closed state. And a curve that keeps between 43 ° and 43 °, and at least 80% of the surface of the outer side of the blade on the back side that is the surface of the two blade portions facing each other. Is provided with a non-contact portion that is not in contact with a virtual surface that is a virtual surface formed by the movement of the blades of the two housings.
In the two blades of the two casings of the saddle of the present application, the angle between the two blades is always 27 degrees from the state where the angle of the two casings is 30 ° to the closed state. A curve that keeps between 43 ° is given. When the object is cut, the angle of the bag changes from an open state to a closed state. Each of the blades of the blades of the two housings of the present application has an angle between the two blades always ranging from 27 ° to 43 ° from the state of the housing angle of 30 ° to the closed state. Since the curve is maintained, even if the angle of the frame gradually decreases from 30 °, the angle formed by the blade does not change greatly. Therefore, when the angles of the two casings gradually decrease from 30 °, the user can move the casings lightly regardless of the angles of the two casings.
In addition, the blades of the two casings move on the surface of at least 80% of the outer side of the blade on the back side surface, which is the surface of the two blade portions facing each other in the cage of the present application. Since there is a non-contact part that is shaped so as not to contact the virtual surface, which is a virtual surface formed by the There is a space between the back side surface and the back side surface of the housing (between the back side surface and the back side surface of the portion where the non-contact portion of at least one of the housings is present when two housings are viewed in plan). Is present. Therefore, even if a foreign object enters between the housings, the possibility of increasing the frictional force between the two housings is small, so that the housing can be moved lightly. Further, the presence of the non-contact portion enables the two casings to reduce the area in which the back side surfaces abut against each other as compared to when there is no non-contact portion. Thereby, compared with the case where the back side surfaces of the casings are in contact with each other over the entire surface, for example, the hook of the present application can perform its operation lightly even if no foreign matter enters between the two casings. .
In addition, in this application, the "back side surface" of a housing means the surface of the side where two housings mutually oppose, and the "front side surface" of a housing is the surface on the opposite side of the back surface of two housings. Means. Further, in the present application, “inner side” of the casing means the side where the blades of the two casings are attached, and “outside” means the opposite side of the inner side of the casing. Although these will appear later, in this application, the “length” of the non-contact portion means the length in the length direction from the housing to the gripping portion of the non-contact portion of the housing, and the “width” of the non-contact portion. "Means the width in the width direction from the inside to the outside of the housing.

The non-contact portion may be a recess provided on at least the back side surface of the blade portion of the housing. The non-contact portion may extend to the outside of the blade portion. When the non-contact part is a depression provided on the back side of the blade part, it is similar to a known elbow provided in the housing. On the other hand, when the non-contact portion extends to the outside of the blade portion, the non-contact portion is no longer a knurl, but rather the configuration in which the blade rises from the non-contact portion toward the above-described virtual surface. Become.
When the non-contact portion is a depression, the cross section of the surface of the back side surface of the housing in the non-contact portion is convexly curved toward the front surface that is the surface opposite to the back side surface of the housing. A curve may be drawn. Further, the cross section of the surface of the back side surface of the housing in the non-contact portion is drawn in a convex U-shape toward a front side surface that is a surface opposite to the back side surface of the blade portion. May be. Further, the cross section of the surface of the back side surface of the casing in the non-contact portion is drawn in a convex V shape toward the front side surface that is the surface opposite to the back side surface of the blade portion. May be. Any of these can be easily formed on the casing by machining or by pressing the casing.

The non-contact portion may extend only in the blade portion of the casing.
On the other hand, the length of the non-contact portion may extend to a position before the portion that is caulked by the caulking member of the caulking portion of the casing. The caulking portion is caulked by the caulking member as described above. Therefore, a hole that penetrates the caulking member is usually formed in the caulking portion of the housing. A plate-like body having a certain area is present around the hole. The plate-like bodies constituting the caulking portion are usually brought into contact with each other so that their back side surfaces are positioned on the extension of the virtual surface described above. Otherwise, there is a possibility of rattling when the two housings are rotated with respect to each other. That is, since the caulking portions abut each other, a frictional force is generated therebetween. Moreover, since the frictional force is close to the caulking member, the force to be applied to the force point is dramatically increased when the gripping part is a force point, the caulking member is a fulcrum, and the caulking part is an action point lever. Therefore, when the non-contact portion extends to the back side surface of the caulking portion, the frictional force generated between the caulking portions of the two housings becomes small, so that the operation becomes light when the two housings are rotated with respect to each other. In addition, if the non-contact portion does not reach only before the portion where the non-contact portion is caulked by the caulking member, there is little possibility of rattling between the caulking portions.
But the said non-contact part may extend to the part crimped by the said caulking member of the said caulking part of the said housing. Then, since the frictional force generated between the caulking portions of the two casings becomes smaller than in the above case, the operation becomes lighter when the two casings are rotated with respect to each other. However, in this case, the non-contact portion needs to be a depression. This is because if the non-contact portion extends to the outside of the caulking portion, rattling occurs between the caulking portions.

The front side surface of the casing of the bag of the present application may be a flat surface. In this case, the surface of the front side surface and the surface of the back side surface of the rod are not parallel, particularly in a portion of the housing where no non-contact portion exists. Such wrinkles can be formed, for example, by cutting the non-contact portion on the back side surface of the housing.
The surface of the front side surface of the casing of the bag of the present application may be parallel to the surface of the back side surface. Such a ridge can be formed by, for example, pressing the non-contact portion on the skeleton. The surface of the front side surface and the surface of the back side surface of the housing are parallel to each other, and in particular, the length of the non-contact portion extends to the portion that is caulked by the caulking member of the caulking portion of the housing. In the case where the caulking part is present, the caulking part may be unevenly attached, so that the caulking member cannot be stably attached to the caulking part.
In such a case, the caulking portion has unevenness corresponding to the unevenness of the front side surface of the caulking portion on the base end surface, and the distal end surface is a flat surface parallel to the virtual surface. And the adjustment member which the base end is being fixed to the said caulking part and the said caulking member can penetrate the inside may be attached. By doing so, the caulking member can be stably attached to the caulking portion.
Further, instead of using the adjusting member, a hole having a bottom surface that is a surface parallel to the virtual surface surrounding the hole through which the caulking member can pass is provided on the front side surface of the caulking portion. You may make it. This also enables the caulking member to be stably attached to the caulking portion.

The top view which shows the closed state of the housing of the collar by 1st Embodiment. FIG. 2 is a plan view showing a state in which the casing of the basket shown in FIG. 1 is opened. The side view of the bag shown in FIG. The top view of the housing main body of the ridge shown in FIG. The top view which shows the state which the housing of the ridge shown in FIG. 1 opened about 30 degrees. The top view which shows the state which the housing of the ridge shown in FIG. 1 opened about 10 degrees. The top view of the housing main body which shows the presence range of the non-contact part in the collar shown in FIG. Sectional drawing of an example of the blade part of the scissors shown in FIG. Sectional drawing of an example of the blade part of the scissors shown in FIG. Sectional drawing of an example of the blade part of the scissors shown in FIG. Sectional drawing of an example of the blade part of the scissors shown in FIG. Sectional drawing which shows the structure of the crimping member of the collar shown in FIG. Sectional drawing which shows the other structural example of the caulking member of the collar shown in FIG. Sectional drawing which shows the other structural example of the caulking member of the collar shown in FIG. Sectional drawing of an example of the blade part of the scissors by 2nd Embodiment. Sectional drawing of an example of the blade part of the scissors by 2nd Embodiment. Sectional drawing of an example of the blade part of the scissors by 2nd Embodiment. Sectional drawing of an example of the blade part of the scissors by 2nd Embodiment. The top view of the housing main body which shows the existence range of the non-contact part of the scissors by 3rd, 4th embodiment. The top view of the housing main body which shows the existence range of the non-contact part of the scissors by 5th, 6th embodiment.

Hereinafter, preferred first to sixth embodiments of the present invention will be described in detail with reference to the drawings.
In the description of each embodiment, the same reference numerals are given to the overlapping objects, and the overlapping description is omitted as necessary.

<< First Embodiment >>
The scissors of the first embodiment are shown in FIG. 1, FIG. 2 and FIG. 1 and 2 are plan views, and FIG. 3 is a side view. FIG. 1 illustrates a state in which a later-described housing is closed, and FIG. 2 illustrates a state in which the housing is opened.

The cage has two enclosures 100.
The casing 100 has a blade portion 110 on the distal end side thereof, a caulking portion 120 in the middle thereof, and a grip portion 130 on the proximal end side thereof.
The two casings 100 are connected to each other by a caulking member 200 at a caulking portion 120 so as to be rotatable. A method for connecting the caulking portions 120 of the two casings 100 by the caulking member 200 will be described later.

The blade part 110 is made of metal, for example, and has a plate shape. A blade 111 is cut inside the blade portion 110. The blade 111 is cut over the entire length of the blade portion 110. The blade 111 in the housing 100 located on the front side in FIGS. 1 and 2 is formed by reducing the thickness of the blade portion 110 from the outside toward the inside. The blade 111 in the housing 100 located on the back side in FIGS. 1 and 2 is also formed in the same manner, although illustration in both figures is omitted.
The caulking portion 120 is a plate-like body that connects the blade portion 110 and the grip portion 130. The caulking portion 120 is a caulking member 200, and a certain area is given so that the caulking portions 120 of the two casings 100 can be connected to each other. The caulking portions 120 in the two casings 100 abut the back side surfaces, which are surfaces facing each other, at least partially in contact with each other. The portions of the two caulking portions 120 that are in contact with each other are flat or are on a certain plane. In the case where the portions of the two caulking portions 120 that are in contact with each other are planar, the planes are located on a plane that is common to a virtual plane described later. When the two caulking portions 120 abut on each other are not planar, the two caulking portions 120 abut on each other on a common plane with a virtual surface described later. As will be described later, the back surface side of the caulking portion 120 may be uneven, but the caulking portion 120 has the back side structure as described above, so that the two caulking portions 120 have the same structure as described above. Rotation can be performed without causing play.
Each of the grip portions 130 is provided with, for example, a ring-shaped handle 131 for the user to grip the heel when the heel is used by the user. The user's thumb is usually passed through one handle 131, and the user's index finger and middle finger are usually passed through the other handle 131. The handle 131 has a convenient size and shape. The two handles 131 in this embodiment are the same, but this is not necessarily the case.
In addition, the blade part 110 and the caulking part 120 of the housing 100 are integrated, and a member connected to the blade part 110 and the caulking part 120 reaches the inside of the handle 131 of the grip part 130. The blade part 110, the caulking part 120 of the housing 100, and the part that is integral with the blade part 110 and that enters the handle 131 are configured as shown in FIG. The member shown in FIG. 4 will be referred to as a housing body 101 in this embodiment.

A curve is given to the entire blade 111 provided in the blade portion 110. This curve functions to reduce the force required by the user when the user cuts the object to be cut with the scissors according to the first embodiment.
The shape of the curve is such that the angle between the two blades 111 always remains between 27 ° and 43 ° when the two housings 100 rotate from the 30 ° open state to the closed state. .
For example, FIG. 5 shows a state where the housing 100 is opened at an angle of about 30 °. When a straight line connecting the caulking member 200 that is the center of rotation of the casing 100 to the tip of the casing 100 is considered for the two casings 100, the angle formed by the straight lines is the angle formed by the two casings 100. is there. That is, what is indicated by a in FIG. 5 is an angle formed by the casing 100, which is approximately 30 ° in FIG. On the other hand, when the two casings 100 are in such a positional relationship, the angle formed by the blades 111 of the two casings 100 is the tangent of the two blades 111 at the portion where the two blades 111 are in contact with each other. As can be seen from the angle α, the angle is the same as or slightly smaller than the angle formed by the housing 100. In this embodiment, the angle α at this time is 28 ° but is not limited thereto.
On the other hand, FIG. 6 shows a state in which the casing 100 is opened at an angle of about 10 °. That is, b in FIG. 6 is 10 °. At this time, the angle β formed by the blades 111 of the two casings 100 is much larger than the angle formed by the casings 100. In this embodiment, β in FIG. 6 is 30 °.
As described above, the curve given to the blades 111 of the two casings 100 always shows that the angle formed by the two blades 111 is 27 when the angle of the both casings 100 is changed from 30 ° to the closed state. It is such that it can maintain between 43 ° and 43 °. The curves given to the blades 111 of the two housings 100 indicate that the angle formed by the two blades 111 is 27 ° to 43 ° when the angle of the both housings 100 is changed from 30 ° to the closed state. It may be such that it is always maintained at a certain angle between them, or it may be such that the angle is always maintained between 27 ° and 43 ° although it changes.

  A non-contact portion 140 is also provided on the back side surface of the two casings 100 on the side where the blade portions 110 face each other. The non-contact part 140 occupies at least 80% of the area of the blade part 110. The non-contact part 140 may exist only in the blade part 110, or may exist over the blade part 110 and the caulking part 120. The non-contact part 140 exists outside the blade 111 in the blade part 110. The non-contact portion 140 is configured not to come into contact with a virtual surface that is a virtual surface formed by the movement of the two blades 111 when the two casings 100 rotate around the caulking member 200. ing. Typically, the non-contact part 140 is a depression provided on the back side surface of the blade part 110, but may not be a depression as described later.

In this embodiment, the non-contact part 140 exists in the range enclosed with the broken line of FIG. That is, the non-contact part 140 exists in the range from the blade part 110 to the caulking part 120. Further, in this embodiment, the non-contact portion 140 includes a portion that is caulked by the caulking member 200 in the caulking portion 120.
The cross-sectional shape of the non-contact portion 140 is as shown in the examples shown in FIGS. 8 to 11 are each a cross-sectional view in the middle of the blade portion 110, and the cross-sectional shape of the caulking portion 120 is a shape that follows this. Moreover, S in FIGS. 8-11 shows a virtual surface.

In the example of FIG. 8, the non-contact portion 140 has a width that extends from just outside the blade 111 to just before the outside of the blade portion 110. The non-contact part 140 is a dent that has a cross section that is convex toward the front side and that draws a gentle arc. In this case, except for the portion where the blade 111 is present, the front side surface of the casing main body 101 (more specifically, the front side surface of the blade portion 110 and the caulking portion 120 of the casing main body 101, and the same applies hereinafter). It is parallel to the back side surface of the main body 101 (more specifically, the back side surfaces of the blade part 110 and the caulking part 120 of the casing main body 101, and the same applies hereinafter). That is, the front side surface of the housing body 101 is also curved in the width direction of the housing body 101, and the middle in the width direction protrudes from the back side surface of the housing body 101 toward the front surface.
In the example of FIG. 9, the non-contact portion 140 has a width that extends from just outside the blade 111 to just before the outside of the blade portion 110. The non-contact portion 140 is a recess having a V-shaped cross section formed by two straight lines that are convex toward the front side surface. In this case, except for the portion where the blade 111 is present, the front side surface of the housing main body 101 is parallel to the back side surface of the housing main body 101. That is, the front side surface of the housing body 101 is also V-shaped in the cross-section in the width direction of the housing body 101, and the middle of the width direction is directed from the back side surface of the housing body 101 to the front surface. It protrudes.
In the example of FIG. 10, the non-contact portion 140 has a width that extends from slightly outside the blade 111 to slightly outside the blade portion 110. The non-contact portion 140 is a recess having a U-shaped cross section that is convex toward the front side surface. In this case, except for the portion where the blade 111 is present, the front side surface of the housing main body 101 is parallel to the back side surface of the housing main body 101. In this case, the front side surface of the casing main body 101 is a flat surface except that a step exists on the outer side.
In the example of FIG. 11, the non-contact portion 140 has a width that extends from just outside the blade 111 to the outside of the blade portion 110. In other words, the outside in the width direction of the non-contact part 140 in this case extends to the outside of the blade part 110 (in some cases, the blade part 110 and the caulking part 120). In such a case, the portion on the outer side of the casing main body 101 indicated by the dotted line in FIG. 7 coincides with the contour line on the outer side of the casing main body 101. In this example, the non-contact part 140 may be configured by a single or a plurality of straight lines that gradually move away from the virtual surface S toward the surface side, but in this example, the virtual surface S It has a curved cross section that gradually curves away from. However, the cross section formed by the non-contact part 140 in this case does not need to gradually move away from the virtual surface S as it goes from the inside to the outside of the housing 100. In this example, the front side surface of the casing body 101 is parallel to the back side surface of the casing body 101 of the blade section 110 except for the portion where the blade 111 is present. That is, the front side surface of the housing main body 101 has a cross section that is curved in the width direction in the same manner as the back side surface of the housing main body 101.

Next, the caulking member for scissors according to the first embodiment will be described.
In the scissors according to the first embodiment, the non-contact portion 140 extends to a portion that is caulked by the caulking members 200 of the caulking portions 120 of the two casing main bodies 101 as shown in FIG.
Moreover, in the bag in 1st Embodiment, the front side surface and back side surface of the housing main body 101 are parallel in the part in which the non-contact part 140 exists.
Therefore, when the cross-sectional shape of the non-contact portion 140 is the one shown in FIG. 10, the surface of the front side surface of the caulking portion 120 of the housing body 101 where the caulking member 200 is caulked is a flat surface. When the cross-sectional shape of the contact portion 140 is the one shown in FIGS. 8, 9, and 11, the surface of the front side surface of the caulking portion 120 of the housing main body 101 where the caulking member 200 is caulked is uneven. Existing.

When the surface of the front side surface of the place to be caulked by the caulking member 200 is a flat surface, a known caulking member may be applied as it is.
As an example of the caulking member 200 in this case, the caulking member 200 includes a first caulking member 210 and a second caulking member 220 (FIG. 12). The first caulking member 210 includes a disk-shaped first head 211 that comes into contact with the front side surface of one housing 100, and a female screw portion 212 that extends in a direction perpendicular to the first head 211. The female thread portion 212 has a cylindrical shape, and is threaded on the inner peripheral surface thereof. The female screw portion 212 is inserted into a hole 121 provided at a position corresponding to an overlapping portion of the caulking portions 120 of the two casings 100. Although not necessarily limited to this, in this embodiment, the hole 121 is a hole with a circular cross section having an inner diameter corresponding to the outer diameter of the female screw portion 212. Further, the inner diameter of the female screw portion 212 is smaller than the outer diameter of the first head 211.
The second caulking member 220 includes a disk-shaped second head 221 that contacts the front side surface of the other casing 100, and a male screw portion 222 that extends in a direction perpendicular to the second head 221. The male threaded portion 222 has a cylindrical shape, and is threaded on the outer peripheral surface thereof, so that it can be screwed onto the inner peripheral surface of the female threaded portion 212. The outer diameter of the second head 221 is larger than the inner diameter of the female screw portion 212.
Then, the outer peripheral surface of the male screw portion 222 of the second caulking member 220 is screwed to the inner peripheral surface of the female screw portion 212 of the first caulking member 210, and the first head 211 of the first caulking member 210 and the second caulking member are engaged. The two housings 100 are rotatable with respect to the caulking member 200 by being sandwiched between the second heads 222 of 220.
In this embodiment, an annular protective ring 230 made of, for example, resin is attached to the outside of the first head 211.

In the case where there are irregularities on the surface of the front side surface where the caulking member 200 is caulked, a known caulking member may be applied as it is.
The caulking member 200 in this case includes a first caulking member 210 and a second caulking member 220 similar to those described above. However, if the surface of the front side surface of the place to be caulked by the caulking member 200 (in short, the periphery of the hole 121 described above) is uneven, the surface of the front side surface of the caulking part 120 of the first head 211 and one housing 100 There is a possibility that a gap is left between the second head 221 and the front side surface of the caulking portion 120 of the other casing 100, or rattling.
In order to eliminate the possibility, the caulking member in this case includes an adjusting member 240 as shown in FIG. 13, for example. FIG. 13 is a cross-sectional view of a heel employing the non-contact portion 140 having the cross-sectional shape shown in FIG.
The adjustment member 240 is attached to the front side surface of the housing 100, and is parallel to the virtual surface and the first surface 241 corresponding to the unevenness of the front side surface or having a shape that absorbs the unevenness. It is an annular member having a second surface 242 that is a surface, and includes a hole 121 provided in the caulking portion 120 of the housing 100 and a series of holes 243. By causing the first head 211 of the first caulking member 210 and the second head 221 of the second caulking member 220 to contact the second surface 242 of the adjustment member 240, the above-described rattling can be prevented. Is done.
Alternatively, as a device for eliminating backlash, instead of using the adjusting member 240, as shown in FIG. 14, the periphery of the portion where the hole 121 of the caulking portion 120 of both the casings 100 is drilled is cut. Thus, there is also a method of creating the bottom surface 122 that is a plane parallel to the virtual plane, like the second surface 242 of the adjusting member 240 described above. By causing the first head portion 211 of the first caulking member 210 and the second head portion 221 of the second caulking member 220 to contact the annular bottom surface 122 surrounding the hole 121, the above-described rattling can be prevented. It becomes like this.

The above-described method for producing cocoons is basically the same as a method for producing cocoons. However, the following points should be noted.
As long as the above-mentioned non-contact part 140 uses a plate whose front side surface and back side surface are parallel, that is, a so-called ordinary plate, as a material of the casing body 101, a mold corresponding to the shape of the non-contact part 140 is used. It can be manufactured by pressing.
In addition, if the heel is provided with the above-described bottom surface 122, the bottom surface 122 is unevenly formed around the portion where the hole 121 of the caulking portion 120 should be present, for example, by pressing the casing body 101. Made later.

Next, the usage method and operation of the bag described above will be described.
As in the case of a normal scissors, the scissors of the first embodiment are used by allowing a user to put a finger through the handle of the grip 130 and rotating the two scissors 100 around the caulking member 200. At this time, an object to be cut is placed between the two blade parts 110 in the open state, and the two blade parts 110 are closed until the two blade parts 110 overlap each other. The object is cut with the blade 111 existing in the blade portion 110. The back side surfaces of the caulking portions 120 in the two casings 100 are both flat, and the two back side surfaces are in contact with each other at least in a portion where the non-contact portion 140 does not exist. Even if only the tips of 111 are in contact with each other, the blade 111 moves smoothly on the virtual surface.
At this time, since the above-described curve is given to the blade 111 of the blade portion 110, the angle formed by the blades 111 of the two blade portions 110 is 27 ° to regardless of the angle of the two blade portions 110. Keep between 43 °. Thereby, the user's operational feeling when operating the bag becomes light.
Moreover, since the non-contact part 140 exists in the back side surface of the two blade parts 110, even if a foreign material enters between the two blade parts 110, the frictional force between the two blade parts 110 becomes large. Unlikely. Moreover, since the place where the non-contact part 140 exists among the back side surfaces of the two blade parts 110 is not in contact with the back side surface of the other blade part 110, there is no non-contact part 140 and the two blade parts 110 are not present. Compared with the case where the entire back side surfaces of the two are in contact with each other, the frictional force caused by the contact between the two is less likely to occur. This also lightens the operation of the heel.
Furthermore, in the first embodiment, the non-contact portion 140 extends from the blade portion 110 of the two casings 100 to the portion caulked by the caulking member 200 of the caulking portion 120. Therefore, also in the two caulking portions 120 of the two casings 100, since the areas where the back side surfaces contact each other are small, the frictional force generated by the contact is also small. This also lightens the operation of the kite.

<< Second Embodiment >>
The bag of the second embodiment is basically the same as that of the first embodiment.
The scissors of the second embodiment are also provided with two housings as in the case of the first embodiment, and the two scissors are connected to each other by caulking members so as to be rotatable.
The two housings of the scissors according to the second embodiment are each provided with a blade portion, a caulking portion, and a grip portion. The blade portion is provided with a blade, and the grip portion is a handle when the blade is curved. There are no alternatives to the case of the first embodiment. Further, the range in which the non-contact portion is provided in the housing is the same as in the case of the first embodiment.
The bag of the second embodiment is different from the first embodiment only in the cross-sectional shape of the frame body.
In the casing of the first embodiment, the front side surface and the back side surface thereof are parallel in the blade portion and the caulking portion, but this is not the case in this embodiment.

  In the second embodiment, the cross-sectional shape of the non-contact part 140 is as shown in the examples shown in FIGS. 15 to 18 are each a cross-sectional view in the middle of the blade portion 110, and the cross-sectional shape of the caulking portion 120 is a shape that follows this. Moreover, S in FIGS. 15-18 shows a virtual surface.

In the example of FIG. 15, the shape of the non-contact part 140, that is, the shape of the back side surface of the casing main body 101 is the same as the case shown in FIG. The difference is the shape of the front side surface of the housing body 101. In the second embodiment, the front side surface of the housing body 101 is a plane parallel to the virtual surface S.
Similarly, in the examples shown in FIGS. 16, 17, and 18, the shape of the non-contact portion 140, that is, the shape of the back side surface of the casing body 101 is the same as the examples shown in FIGS. 9, 10, and 11. ing. However, in the example shown in FIGS. 16, 17, and 18, the front side surface of the housing body 101 is a plane parallel to the virtual surface S.

  In addition, the ridge in the second embodiment extends to the portion where the non-contact portion penetrates the caulking member of the caulking portion, but the front side surface of the caulking portion is flat as described above. Therefore, an extremely ordinary structure as shown in FIG. 12 can be adopted for the caulking member.

The method for manufacturing a cocoon according to the second embodiment is basically the same as the method for producing a cocoon. However, the following points should be noted.
The above-mentioned non-contact part 140 can be manufactured by cutting, for example, as long as the front side surface and the back side surface are parallel plates, that is, so-called ordinary plates are used as the material of the casing body 101.

Next, the usage method and operation of the bag described above will be described.
The bag according to the second embodiment is the same as the bag according to the first embodiment and its usage.
The point that the curve of the blade part 110 makes the operation of the scissors light is the same as in the first embodiment.
In addition, the presence of the non-contact portion 140 allows the scissors to be lightly operated even if a foreign object enters between the two blade portions 110, and the back side surface of the two blade portions 110 and the caulking member 200 of the caulking portion 120 are caulked. It is the same as in the first embodiment that the operation of the heel is lightened by the presence of the non-contact portion 140 up to the portion.

«Third embodiment»
The bag of the third embodiment is basically the same as that of the first embodiment.
Similarly to the case of the first embodiment, the cage of the third embodiment includes two housings, and the two housings are connected to each other by caulking members so as to be rotatable.
The two housings of the scissors according to the third embodiment are each provided with a blade portion, a caulking portion, and a grip portion. The blade portion is provided with a blade and the blade is curved. There are no differences from the case of the first embodiment. In addition, the third embodiment is the same as the first embodiment in that the front side surface and the back side surface of the housing body are parallel.
The third embodiment differs from the first embodiment in the range of the non-contact portion.

  In the first embodiment, the non-contact part 140 extends from the blade part 110 of the two casings 100 to the part caulked by the caulking member 200 of the caulking part 120. However, in the third embodiment, the non-contact part 140 extends from the blade part 110 to the caulking part 120 of the two casings 100, but in the caulking part 120, it is in front of the part caulked by the caulking member 200. (Fig. 19).

  Moreover, since the non-contact part has reached only before the part penetrated by the caulking member of the caulking part, the front side surface of the caulking part is a plane as mentioned above. Therefore, an extremely ordinary structure as shown in FIG. 12 can be adopted for the caulking member.

  About the manufacturing method of the bag of 3rd Embodiment, and the point to be noted, it is the same as that of the case of 1st Embodiment.

The use method and operation of the bag of the third embodiment are the same as those of the first embodiment.
Note that in the scissors of the third embodiment, the non-contact portion extends only to the front of the portion that is caulked by the caulking members of the two caulking portions 120, and therefore the operation of the scissors is the first embodiment. Slightly but heavier than

<< Fourth Embodiment >>
The bag of the fourth embodiment is basically the same as that of the second embodiment.
The place where the wrinkles of 4th Embodiment differ from 2nd Embodiment is the range of a non-contact part. The relationship between the non-contact range of the heel of the fourth embodiment and the non-contact range of the heel of the second embodiment is the relationship between the non-contact range of the heel of the third embodiment and the non-contact range of the heel of the first embodiment. Same as relationship.
That is, the non-contact range in the ridge of the fourth embodiment extends from the blade portion 110 of the two housings 100 to the caulking portion 120 as in the heel of the third embodiment, but in the caulking portion 120, It extends only to the front of the portion caulked by the caulking member 200 (FIG. 19).

  Further, as in the case of the second embodiment, the front surface of the housing body 101 is not parallel to the back surface of the housing body 101 in the fourth embodiment, and the front surface of the housing body 101 is a flat surface. Therefore, an extremely ordinary structure as shown in FIG. 12 can be adopted for the caulking member.

  About the manufacturing method of the bag of 4th Embodiment, and the point to be noted, it is the same as that of the case of 2nd Embodiment.

The use method and operation of the bag of the fourth embodiment are the same as those of the second embodiment.
In the scissors according to the fourth embodiment, the non-contact part extends only to the front of the part that is caulked by the caulking members of the two caulking parts 120, so that the operation of the scissors is the second embodiment. Slightly but heavier than

«Fifth embodiment»
The bag of the fifth embodiment is basically the same as that of the third embodiment.
The wrinkles of the fifth embodiment are different from those of the third embodiment in the range of the non-contact portion.

  In the third embodiment, the non-contact portion 140 extends from the blade portion 110 of the two casings 100 to the front of the portion that is caulked by the caulking member 200 of the caulking portion 120. However, in 5th Embodiment, the non-contact part 140 exists only in the blade part 110 of the two housings 100 (FIG. 20).

  Moreover, since the non-contact part exists only in the blade part in the scissors in 5th Embodiment, the front side surface of a crimping part is a plane as mentioned above. Therefore, an extremely ordinary structure as shown in FIG. 12 can be adopted for the caulking member.

  About the manufacturing method of the bag of 5th Embodiment, and the point to be noted, it is the same as that of the case of 3rd Embodiment.

The use method and operation of the bag of the fifth embodiment are the same as those of the third embodiment.
In the scissors of the fifth embodiment, since the non-contact portion exists only in the blade portions of the two scissors, the scissors operation is slightly more heavy than in the third embodiment.

<< Sixth Embodiment >>
The bag of the sixth embodiment is basically the same as that of the fourth embodiment.
The wrinkle of the sixth embodiment is different from the case of the fourth embodiment in the range of the non-contact portion.

  In the fourth embodiment, the non-contact part 140 extends from the blade part 110 of the two casings 100 to the front part of the caulking part 120 that is caulked by the caulking member 200. However, in 6th Embodiment, the non-contact part 140 exists only in the blade part 110 of the two housings 100 (FIG. 20).

  Moreover, since the non-contact part exists only in the blade part in the scissors in 6th Embodiment, the front side surface of a crimping part is a plane as mentioned above. Therefore, an extremely ordinary structure as shown in FIG. 12 can be adopted for the caulking member.

  About the manufacturing method of the bag of 6th Embodiment, and the point to be noted, it is the same as that of the case of 4th Embodiment.

The use method and operation of the bag of the sixth embodiment are the same as those of the fourth embodiment.
In the scissors of the sixth embodiment, the non-contact portion exists only in the blade portions of the two scissors, so that the scissor operation is slightly more heavy than in the fourth embodiment.

DESCRIPTION OF SYMBOLS 100 Housing body 110 Blade part 111 Blade 120 Caulking part 121 Hole 130 Grasping part 131 Handle 140 Non-contact part 200 Caulking member 210 First caulking member 211 First head 212 Female thread part 220 Second caulking member 221 Second head 222 Male screw Part

Claims (15)

Two housings each having a blade portion on the distal end side having a blade along the inner side, a gripping portion on the proximal end side having a handle, and a caulking portion positioned between the blade portion and the gripping portion, ,
A caulking member that caulks the two housings so as to be rotatable relative to each other at the caulking portion of each housing;
With a bag
The two blades in the two housings always have an angle between the two blades of 27 ° to 43 ° from the angle of the two housings from 30 ° to the closed state. Is given a curve that keeps
Two blades are formed by moving the blades of the two casings on the surface of at least 80% of the portion outside the blades on the back side, which are the surfaces of the two blades facing each other. A non-contact portion that is shaped so as not to contact a virtual surface that is a virtual surface is provided,
scissors. The non-contact portion is a recess provided on at least the back side surface of the blade portion in the housing.
The bag according to claim 1. The cross section of the surface of the back side surface of the casing in the non-contact portion is configured to draw a convex curved curve toward the front side surface that is the surface opposite to the back side surface of the blade portion.
The bag according to claim 2. The cross section of the surface of the back side surface of the casing in the non-contact portion is configured to draw a convex U-shape toward a front side surface that is a surface opposite to the back side surface of the blade portion. ,
The bag according to claim 2. The cross section of the surface of the back side surface of the casing in the non-contact portion is configured to draw a convex V shape toward the front side surface that is the surface opposite to the back side surface of the blade portion. ,
The bag according to claim 2. The non-contact portion extends to the outside of the blade portion,
The bag according to claim 2. The non-contact portion extends only in the blade portion of the casing.
The bag according to any one of claims 2 to 6. The non-contact portion has a length that extends to the front of the portion that is caulked by the caulking member of the caulking portion of the housing,
The bag according to any one of claims 1 to 6. The non-contact portion extends to a portion that is caulked by the caulking member of the caulking portion of the casing,
The bag according to any one of claims 1 to 6. The front side surface of the housing is a plane.
The bag according to any one of claims 1 to 9. The front surface of the housing is parallel to the back surface,
The bag according to any one of claims 1 to 9. The non-contact portion has a length that extends to a portion that is caulked by the caulking member of the caulking portion of the casing,
The caulking portion has unevenness corresponding to the unevenness of the front side surface of the caulking portion on the base end surface thereof, and the tip surface thereof is a plane parallel to the virtual surface, and the base end is An adjustment member is attached that is fixed to the caulking portion and through which the caulking member can penetrate.
The bag according to claim 11. The non-contact portion has a length that extends to a portion that is caulked by the caulking member of the caulking portion of the casing,
A hole having a bottom surface that is a surface parallel to the virtual surface surrounding the periphery of the hole through which the caulking member can pass is provided on the front side surface of the caulking portion.
The bag according to claim 11. It is a manufacturing method of the bag of Claim 10, Comprising:
Forming the non-contact portion by cutting out the back side surface of the housing;
A method for producing firewood. It is a manufacturing method of the bag of Claim 11, Comprising:
Forming the non-contact portion by pressing the casing;
A method for producing firewood.

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