JP7352325B1 - Shrimp mouth and method for manufacturing shrimp mouth - Google Patents

Abstract

An object of the present invention is to provide a toad opening that makes it easy to visually recognize the characteristics of stored items and to easily take out the toad opening, and a method for manufacturing the toad opening. [Solution] A first frame 21a and a second frame 21b constituting a cap, a first upper side connected to the first frame 21a, a first side side continuous to the first upper side, and a first side side continuous to the first side side. a first main surface portion 11a having a first base side, a second side side continuous to the first base side and continuous to the first top side; a second top side connected to the second frame 21b; a first side side continuous to the second top side; a third side facing the third side, a second base continuous to the third side facing the first base, a fourth side continuous to the second base facing the second side, and continuous to the second top side. The second main surface portion 11b has a second main surface portion 11b, and a first end surface that is continuously sewn to the first side, the first base, and the first side is continuous to the third side, the second base, and the fourth side. A shape stabilizing mechanism 13 is provided that is opposed to the first end surface that is sewn together. [Selection diagram] Figure 1

Description

The present invention relates to a toad opening used as a coin purse, accessory case, etc., and a method for manufacturing the toad opening.

Abiguchi is a general term for bags with a cap, and is used to store coins and small items inside. A coin purse is an item that is frequently used with a toad opening, but in a normally made toad opening as shown in Patent Document 1, for example, the inner bottom surface (inner bottom) of the toad opening does not have sufficient width (gusset). Moreover, since a protrusion is formed on the inner bottom due to the seam allowance of the inner seam, a plurality of coins overlap each other in a standing state, making it difficult to distinguish the type of coin at a glance. In particular, current 50 yen coins (diameter 21.0 mm) and 100 yen coins (diameter 22.6 mm) are similar in size and color, making it difficult to tell them apart without visually checking the front or back of the coin. . In addition, the current 5-yen coins (diameter 22.0 mm) and 10-yen coins (diameter 23.5 mm) are easy to distinguish by color in bright places, but in areas with shadows such as inside the toad's mouth. If so, it may be difficult to distinguish them from each other, and it may be necessary to visually check the front or back sides of the coins.

Utility model registration No. 3210934

The present invention has been made to solve the problems of the prior art described above, and an object of the present invention is to make it easier to visually recognize the characteristics of stored items such as the front or back sides of a plurality of coins, and to make it easier to take them out. It is an object of the present invention to provide a tomato mouth and a method for producing a toma mouth.

In order to achieve the above object, a first aspect of the present invention provides (a) a first frame; (b) a device having the same shape and the same dimensions as the first frame, and allowing stored items to be put in and taken out together with the first frame. (c) a first upper side connected to the first frame, a first side continuous to one vertex of the first upper side, and a first side continuous to the first side; (d) connected to the second frame; a second top side that is continuous with the second top side and opposite the first side; a second base that is continuous with the third side and opposite the first base; a second base that is continuous with the second base; and a second main surface portion, which has a fourth side surface facing the second side surface and further continuous to the other vertex of the second frame, and forms a bag body for storing stored items together with the first main surface portion; (e) The first edge surface, which is sutured continuously to the first side, the first base, and the second side, is sutured continuously to the third side, the second base, and the fourth side. The gist is that the toad opening is provided with a shape stabilizing mechanism that forms a cylindrical shape by mating with the second end surface.

A second aspect of the present invention is to prepare (a) a band-shaped member in which a first end surface and a second end surface appear in a cross section parallel to the longitudinal direction, and first and second main surface portions having the same shape as each other; (b) the end face of the peripheral part of the first main surface part from the first side of the first main surface part via the first base to the second side opposite to the first side part and the first side of the band-shaped member; a step of sewing the end surface of the peripheral portion of the first main surface portion and the first end surface of the band-shaped member so that the end surfaces are aligned; The peripheral part of the second main surface is set so that the end face of the peripheral part of the second main surface extending through the base and reaching the fourth side facing the third side is aligned with the second end face of the band-shaped member. and (d) turning over the intermediate product so that the inside side becomes the outside side, and sewing the end face of the belt-like member with the second end face of the band-shaped member to form an intermediate product; The end face of the peripheral part of the first main surface section extending from the first base to the second side edge, and the periphery of the second main surface section extending from the third side surface of the second main surface section to the fourth side via the second base section. After the step of forming a cylindrical shape stabilizing mechanism by matching the end surfaces of the strip member and matching the first end surface and the second end surface of the band-shaped member, and (e) the step of turning over, A method for manufacturing a toad opening, comprising the steps of: attaching a first frame to a first upper side of a first main surface section facing a first base; and attaching a second frame to a second upper side of a second main surface section facing a second base. The gist is something.

According to the present invention, it is possible to provide a toad opening and a method for manufacturing a toad opening, which makes it easy to visually recognize the characteristics of stored items such as the front or back sides of a plurality of coins, and to make it easier to take out the coins.

FIG. 2 is a plan view of the toad opening 1 in an open state according to the first embodiment of the present invention. FIG. 2 is a perspective view of the toad mouth 1 in a closed state according to the first embodiment. FIG. 3(a) is a front view of the toad opening 1 according to the first embodiment in a closed state, and FIG. 3(b) is a sectional view taken from the direction AA in FIG. 3(a). FIG. 3(a) is a right side view of the toad opening 1 according to the first embodiment in a closed state, and FIG. 3(b) is a right side view of the toad opening 1 in an open state according to the first embodiment. FIG. 2 is a bottom view of the toad mouth 1 in a closed state according to the first embodiment. FIG. 2 is a plan view of the toad mouth 1 in a closed state according to the first embodiment. FIG. 2 is a perspective view of an intermediate product used in manufacturing the toss mouth 1 according to the first embodiment. FIG. 8(a) is a right side view of an intermediate product used in manufacturing the toad opening 1 according to the first embodiment, and FIG. 8(b) is a right side view of an intermediate product used in manufacturing the toad opening 1 according to the first embodiment. It is a bottom view of an object. FIG. 9(a) is a cross-sectional view seen from the direction AA in FIG. 7, and FIG. 9(b) is an enlarged view of portion A in FIG. 9(a). FIG. 1 is a front view of the tosmouth 1 according to the first embodiment, and is a schematic diagram illustrating the three-dimensional structure. FIG. 7 is a plan view of a toad opening 2 in an open state according to a second embodiment of the present invention. FIG. 2 is a perspective view of a toad mouth 2 in a closed state according to a second embodiment. FIG. 13(a) is a front view of the toad opening 2 according to the second embodiment in a closed state, and FIG. 13(b) is a sectional view taken from the direction AA in FIG. 13(a). FIG. 3 is a right side view of a toad opening 2 in a closed state according to a second embodiment. It is a perspective view of the intermediate product used for manufacturing the toss mouth 2 based on 2nd Embodiment. FIG. 16(a) is a right side view of an intermediate product used for manufacturing the toad opening 2 according to the second embodiment, and FIG. 16(b) is a right side view of an intermediate product used for manufacturing the toad opening 2 according to the second embodiment. It is a bottom view of an object. FIG. 17(a) is a cross-sectional view taken from the direction AA in FIG. 15, and FIG. 17(b) is an enlarged view of portion A in FIG. 17(a).

Hereinafter, first and second embodiments of the present invention will be described in detail with reference to the drawings. In the description of the drawings below, the same or similar parts are designated by the same or similar symbols. However, it should be noted that the drawings are schematic and the proportions of dimensions of each part may differ from the reality. Therefore, the dimensions of the specific structure, etc. should be determined with reference to the following explanation. Furthermore, it goes without saying that the drawings include portions that have different dimensional relationships and ratios. In addition, the first and second embodiments of the present invention shown below illustrate the structure and method of members for embodying the technical idea of the present invention, and the technical idea of the present invention is as follows: The material, shape, structure, arrangement, etc. of the component parts are not specified as shown below. The technical idea of the present invention can be modified in various ways within the technical scope described in the claims.

(First embodiment)
As shown in FIGS. 1 to 6, the toad opening 1 according to the first embodiment of the present invention includes a cap (21a, 21b) that opens and closes to take in and take out articles (storage items), and a cap (21a, 21b). ), which form a bag (storage space), and a shape stabilizing mechanism 13 connected to a part of the bag (11a, 11b). The cap (21a, 21b) has a first frame 21a and a second frame 21b, as shown in FIG. One end (the upper end in FIG. 1) defined in the longitudinal direction of each of the first frame 21a and the second frame 21b is rotatably fixed at the center of rotation by the first hinge 23a. Ru. Similarly, the other end defined in the longitudinal direction of the first frame 21a and the second frame 21b (the lower end in FIG. Its position is fixed, and it functions as the opening of the toad's mouth 1.

The bag-like portions (11a, 11b) store items that are taken in and out through the caps (21a, 21b). As shown in FIGS. 1 and 3(b), the bag-shaped portions (11a, 11b) have a first main surface portion 11a whose first upper side is connected to the first frame 21a, and a second upper side connected to the second frame 21b. It has a second main surface part 11b which is connected and has the same shape as the first main surface part 11a, and which faces the first main surface part 11a in a mirror image relationship to form a bag body having a storage space inside. The first main surface portion 11a has a first side edge whose apex is connected to one apex of the first upper side (one end defined in the longitudinal direction of the first frame 21a), and a first side edge whose apex is connected to one apex of the first upper side (one end defined in the longitudinal direction of the first frame 21a); a second side connected to the apex (the other end defined in the longitudinal direction of the first frame 21a) and opposite to the first side; and a first side and a second side of the first main surface 11a. Each has a first base that forms a continuous side. The second main surface portion 11b, which is paired with the first main surface portion 11a in a mirror image relationship, has an apex connected to one apex of the second upper side (one end defined in the longitudinal direction of the second frame 21b). a third side facing the first side; It has four sides, and a second base that is continuous with each of the third and fourth sides and faces the first base.

By facing the first main surface portion 11a and the second main surface portion 11b in a mirror image relationship with each other, the first side of the first main surface portion 11a is adjacent to and facing the third side. Continuous with 3 sides. Similarly, since the first main surface portion 11a faces the second main surface portion 11b, the second side is close to the fourth side that adjoins and faces, and is continuous with the fourth side. . Further, the first base is continuous with the second base by being close to the second base that is adjacent to and faces the second base. The first main surface portion 11a and the second main surface portion 11b that is paired with the first main surface portion 11a face each other in a mirror image relationship, and the peripheral portions are continuously connected. A bag body is formed to define a storage space between the second main surface portions 11b.

In the toad mouth 1 according to the first embodiment, the shape stabilizing mechanism 13 realizes stabilization of the shape of the toe mouth. The structure of the cross section perpendicular to the longitudinal direction of the shape stabilizing mechanism 13 is actually a collapsed cylindrical shape with no hollow space, as shown in FIG. 3(b). In the cross-sectional view shown in FIG. 3(b), one of the two side surfaces facing each other along the short axis direction of the cylindrical shape is the opposing surface 17 of the first main surface portion 11a and the second main surface portion 11b. are connected continuously along the However, as shown in FIG. 9(b) and the like, the structure of the shape stabilizing mechanism 13 in the intermediate product state has a semicircular cross-sectional shape. In the shape stabilizing mechanism 13 in the intermediate product state, as shown in FIGS. 7 to 9, the semicircular first end surface 13a is continuously connected along the periphery of the first main surface portion 11a, The second end surface 13b is continuously connected along the periphery of the second main surface portion 11b. On the other hand, as can be seen from FIG. 3(b) etc., the cross-sectional structure of the shape stabilizing mechanism 13 in the finished product state is more like a track at an athletics stadium than an ellipse, with the short sides of both sides of the rectangle being half halves. It has a circular oval shape. In the nearly oval cross-sectional shape, of the two opposing cylindrical surfaces constituting the shape stabilizing mechanism 13, only one surface in contact with the bag-shaped portion (11a, 11b) is the first main surface portion 11a and the second main surface portion. 11b, and are continuously fixed to the bag-shaped portions (11a, 11b).

The first frame 21a and the second frame 21b are arranged so that the first frame 21a and the second frame 21b are rotatably movable about rotational shafts provided in the first hinge part 23a and the second hinge part 23b as fulcrums (center axis of rotation). The position of the center of rotation is fixed at both ends of each of the two frames 21b in the longitudinal direction. Therefore, the distance between the first frame 21a and the second frame 21b changes around the first hinge part 23a and the second hinge part 23b, and functions as the mouthpiece (21a, 21b) of the toad mouth 1. In the first embodiment, a state in which the first frame 21a and the second frame 21b are open, that is, a state in which the toad opening 1 is open, is defined as an "open state", and a state in which the space between the first frame 21a and the second frame 21b is open is defined as an "open state". The closed state, that is, the state in which the toad mouth 1 is closed, is defined as an "open state." The same applies to the second embodiment.

As shown in FIG. 1 and the like, the first frame 21a and the second frame 21b according to the first embodiment have a knob with a decorative bead fixed near the center of each, and when the knobs engage with each other, The caps (21a, 21b) can be closed. The knob of the first frame 21a or the second frame 21b in the open state is defined in a plane perpendicular to the center line connecting the rotation center of the first hinge part 23a and the rotation center of the second hinge part 23b. The rotation angle formed by the position can be set arbitrarily. Each of the first frame 21a and the second frame 21b may have an arch shape similar to the outer shape of the "body of a Japanese comb" as shown in FIG. Other shapes are also possible. The method of fixing the first frame 21a to the first main surface portion 11a and the method of fixing the second frame 21b to the second main surface portion 11b may be caulking (crimping) or sewing. Other methods may also be used. As shown in FIGS. 2 and 4(a), the first hinge portion 23a and the second hinge portion 23b are hidden inside the bag-like portions (11a, 11b) in the closed state, but as shown in FIG. In the open state shown in FIG. 4(b), the bag portions (11a, 11b) appear raised from inside.

The first main surface portion 11a and the second main surface portion 11b according to the first embodiment have the same curved surface shape. The shapes of the bag-like portions (11a, 11b), the first frame 21a, and the second frame 21b determine the general overall shape of the toad mouth 1 according to the first embodiment, but the first main surface portion 11a and the second The shape of the main surface portion 11b is arbitrary. The first upper side and the second upper side face each other to form the opening of the toad mouth, and the respective end surfaces of the first side side and the third side side, the second side side and the fourth side side, and the first base side and the second base side The first main surface portion 11a and the second main surface portion 11b may have any shape as long as they are paired (combined facing each other in pairs) to form a bag. The portions where the end faces of the first side and the third side, the second side and the fourth side, and the first and second bases face each other and join (pair) are shown in the figure. As shown in No. 1, the opposing surface 17 is formed. In the opposing surfaces 17, the opposing end surfaces (hereinafter referred to as "opposing end surfaces") may be fixed inseparably with adhesive or the like, or may not be fixed so that they can be separated. Tomoyoshi. Even if the opposing end surfaces of the opposing surfaces 17 are not fixed to each other, the pressing force depending on the internal structure is generated in the direction of joining each other, so the use of the toad opening 1 according to the first embodiment are not easily separated. The pressing force depending on the internal structure originates from the turning process in the manufacturing process described later, and is a force that is generated in opposite directions on opposing end surfaces. The inside of the bag-shaped portion (11a, 11b) becomes a storage space, and in the first embodiment, the bottom of this storage space is defined as an "inner bottom."

The bag-like portions (11a, 11b) according to the first embodiment are formed by a first sewing thread 15a and a second sewing thread 15b, as shown schematically in a sutured state with broken lines in FIGS. 1 and 3(b). , and the shape stabilizing mechanism 13 are fixed to each other. As shown in FIG. 1, the first sewing thread 15a and the second sewing thread 15b are visible at the inner bottom of the toad opening 1 in the open state, and are almost invisible from the outside of the toad opening 1. In the toad opening 1 according to the first embodiment, only the parts where the shape stabilizing mechanism 13 is attached to the bag-shaped parts (11a, 11b) are sewn, so the sewing thread is not sewn from the outside of the toad opening 1. is almost invisible.

Regarding the structure of the shape stabilizing mechanism 13, the first end surface 13a and the second end surface 13b are not separated by adhesive or the like, similarly to the mating surface 17 of the first main surface section 11a and the second main surface section 11b. It may be fixed so that it can be separated, or it may not be fixed so that it can be separated. In the shape stabilizing mechanism 13, a boundary surface between the first end surface 13a and the second end surface 13b extends in the longitudinal direction in a part of the annular cross section. Even if the surface 13b is not fixed, the first end surface 13a and the second end surface 13b are not easily separated when using the toad mouth 1 according to the first embodiment. This is because a pressing force due to the internal structure resulting from the turning process in the manufacturing process is generated on the first end side surface 13a and the second end side surface 13b in the direction of joining them to each other.

Although the shape stabilizing mechanism 13 has a solid structure in which two opposing surfaces are in contact with each other in FIG. good. As shown in FIG. 3(b), of the two opposing surfaces of the cross section of the shape stabilizing mechanism 13, only one surface (the upper surface in FIG. 3(b)) that is in contact with the bag-like portions (11a, 11b) is As shown in FIG. 9(b), the first main surface portion 11a and the second main surface portion 11b are sutured and fixed to their respective peripheral portions. As shown in FIGS. 1, 2, 4 to 6, the part of the shape stabilizing mechanism 13 that is visible from the outside becomes the apparent "outer bottom (outer periphery of the main body)" of the toad opening 1 according to the first embodiment. . The bag-like parts (11a, 11b) and the shape stabilizing mechanism 13 according to the first embodiment may be made of any leather, but preferably goat leather having appropriate hardness and softness.

-Method for manufacturing toad mouth 1 according to first embodiment-
First, the shape stabilizing mechanism 13 is prepared, which is a band-shaped member in which the first main surface portion 11a and the second main surface portion 11b having the same shape, and the first end surface and the second end surface appear in a cross section parallel to the longitudinal direction. do. The first main surface portion 11a has the planar shape shown in FIG. 7, for example, and the first upper side of the first main surface portion 11a may have any shape as long as it can fix the base, and the same applies to the second main surface portion 11b. . Then, in the peripheral part from the first side to the second side via the first base, the end face of the peripheral part of the first main surface part 11a and the shape stabilizing mechanism 13 are The first end surfaces 13a appearing in a cross section parallel to the longitudinal direction are aligned. Then, along the periphery of the first main surface portion 11a, the periphery near the first end surface 13a is sewn and fixed to the periphery of the first main surface portion 11a with the first sewing thread 15a.

Next, in the peripheral part from the third side via the second base to the fourth side, the end face of the peripheral part of the second main surface part 11b and the shape stabilizing mechanism 13 The second end surfaces 13b appearing in the cross section parallel to the longitudinal direction are aligned. Then, along the periphery of the second main surface 11b, the periphery near the second end surface 13b is sewn and fixed to the periphery of the second main surface 11b with the second sewing thread 15b. At this stage, as shown in FIG. 7, the periphery from the first side to the second side via the first base, and the periphery from the third side to the fourth side via the second base. By matching the parts, the first end surface 13a and the peripheral part of the first main surface part 11a are sewn together, and the second end surface 13b and the peripheral part of the second main surface part 11b are sewn together. ``things'' are formed. At the intermediate product stage, as shown in FIGS. 7 to 9, the cross-sectional structure of the band-shaped shape stabilizing mechanism 13 is convex inward from the parallel plate structure formed by the first main surface portion 11a and the second main surface portion 11b. It has a semicircular shape that can be inserted.

Next, turn the intermediate product over so that the inside of the intermediate product is on the outside. That is, when the intermediate product with the structure shown in FIG. The bag-shaped parts (11a, 11b) shown in FIGS. 1 to 3 are used as a bag body in which the end faces of the peripheral part extending through the two bases and reaching the fourth side face each other (facing and joining each other). As well as being formed, a mating surface 17 is created. By turning over the intermediate product, the bag-shaped parts (11a, 11b) are formed, and at the same time, in the semicircular state, the first end side surface 13a and the second end side surface 13b located on both sides face each other. The shape stabilizing mechanism 13 is formed into contact and has a collapsed cylindrical (oval) cross section. By turning over the intermediate product, the first end surface 13a sewn in the peripheral part from the first side to the second side via the first base in FIG. 7 and the second base from the third side are sewn together. The second end side surfaces 13b stitched together at the peripheral portion extending through the second side and reaching the fourth side face each other at the lower part of the opposing surface 17. Therefore, as shown in FIG. 1 and the like, the end of the mating surface 17 appears linearly on the inner sole as an edge where the mating surface 17 cuts the inner sole.

That is, in the intermediate product stage, the shape stabilizing mechanism 13 has a first end surface 13a located at the first folded part and a second end located at the second folded part, as shown in FIG. 9(b). It has a semicircular continuous body structure including side surfaces 13b and an exposed portion 13c located at the center. However, by turning the intermediate product over, the first end side surface 13a and the second end side surface 13b are bent into an annular shape and the distance between them is shortened, so that they meet and are formed into a cylindrical cross-sectional shape. . In the upside down state, the exposed portion 13c in FIG. 9(b) is exposed under tension and becomes a portion that can be visually recognized as the shape stabilizing mechanism 13 from the outside. That is, the exposed portion 13c is visually recognized as the shape stabilizing mechanism 13 located at the center line of the apparent outer periphery of the toad mouth 1. When the mating surface 17 or the mating portion (contact portion) of the shape stabilizing mechanism 13 is fixed, it may be fixed in the step of turning over this intermediate product. Finally, the first frame 21a is attached to the first upper side which will be the opening in the upside down state, and the second frame 21b is attached to the second upper side, thereby completing the toad mouth 1.

-Shape stabilization-
When the finished product is turned over, it is necessary to properly join and fix the mating surfaces 17 and the mating parts (contact parts) of the shape stabilizing mechanism 13, respectively, to stably secure the depth of the inner bottom. be. When the respective mating portions (contact portions) of the mating surface 17 and the shape stabilizing mechanism 13 are appropriately and accurately aligned at any location, the flat state of the inner bottom in the state of the finished product is stabilized; As a result, the overall shape of the toad mouth 1 is stabilized. Focusing only on the opposing surface 17, the inner bottom of the toad mouth 1 is bent at the opposing surface 17 because the intermediate product is turned over, and the first main surface portion 11a and the second main surface portion 11b are bent. It is easy to form a V-shape. That is, the opposing surface 17 tends to sink into the inner bottom. The reason why the opposing surfaces 17 on the inner bottom sinks is because the opposing end surfaces of the opposing surfaces 17 do not come into contact with each other to form a cylindrical shape, but only a portion of each opposing end surface contacts each other, or when the opposing surfaces 17 This is because, even if the entire surfaces of the opposing end surfaces of the opposing surfaces 17 are in contact with each other, a portion of the opposing portion of the shape stabilizing mechanism 13 below the opposing surfaces 17 is not in contact with each other. If only a portion of the opposing end surfaces come into contact with each other, the overall shape of the toad mouth 1 as a completed product in an upside-down state will become unstable.

In the process of turning over, the shape stabilizing mechanism 13, which was formed into a cylindrical cross-sectional shape, was a semicircular band-like member before being turned over, so it retains its original shape even when formed into a cylindrical shape due to its own elasticity. A ``repulsive force'' acts to try to return to the band-shaped member. The repulsive force that tends to return to the semicircular strip member acts particularly on the opposing portions of the first end side surface 13a and the second end side surface 13b and on the opposing surface 17. The repulsive force due to this elasticity adjusts the inner bottom of the toad opening 1 in the finished product state so that it does not sink downward at the opposing surface 17, maintains a flat and wide inner bottom, and maintains the shape. Realize the stabilization of

When the inner bottom is adjusted so as not to sink downward due to the repulsive force due to elasticity, the entire surfaces of the first end surface 13a and the second end surface 13b of the shape stabilizing mechanism 13 come into contact, and the first end The pressing force between the side surface 13a and the second end side surface 13b becomes equal. Therefore, the uniform pressing force is transmitted as "tension" to the entire body, and the overall shape of the toad mouth 1 in the finished product state is stabilized. As shown in FIG. 10, the overall shape of the toad mouth 1 is a unique shape in which portions A, B, and D are relatively bulged outward, and portion C is relatively concave. be. The repulsive force due to the elasticity of the shape stabilizing mechanism 13 contributes to maintaining the overall shape of the toad opening 1 in the finished product state. In the state of the finished product, it is necessary to bring the entire surfaces of the mating surfaces 17 and the mating portions (contact portions) of the shape stabilizing mechanism 13 into contact to equalize the pressing force between the end surfaces. That is, in order to maintain the overall shape of the toad opening 1, in the upside down state, the opposing end surfaces of the opposing surfaces 17 and the opposing portions (contact portions) of the shape stabilizing mechanism 13 must be properly aligned with each other. It is necessary that the positions are accurately aligned.

In order to accurately align the mating surfaces 17 and the mating parts (contact parts) of the shape stabilizing mechanism 13 in the state of the finished product, the first sewing shown in FIG. 7 is performed at the intermediate product stage before turning over. It is necessary to finely adjust the seam allowance for sewing with the thread 15a and the second sewing thread 15b. If the seam allowance is too short, the mating surfaces 17 and the mating parts (contact parts) of the shape stabilizing mechanism 13 cannot be aligned, and the inner bottom of the finished product, the toad opening 1, will not be flat, resulting in a V in the depth direction. The shape becomes unstable. In addition, if the seam allowance is too short, the mating surfaces 17 and the mating parts (contact parts) of the shape stabilizing mechanism 13 cannot be aligned, so it is difficult to stabilize the overall shape of the toad opening 1, which is turned over and becomes a finished product. It's impossible. If the seam allowance is too long, the mating surfaces 17 and the mating parts (contact parts) of the shape stabilizing mechanism 13 cannot be aligned, and the depth (gusset) of the inner bottom of the finished toss mouth 1 will not be flat. Furthermore, if the seam allowance is too long, the mating surfaces 17 and the mating parts (contact parts) of the shape stabilizing mechanism 13 cannot be aligned, so the depth (gusset) of the inner bottom of the finished product, the toad opening 1, will be flat. Therefore, it is impossible to stabilize the overall shape of the toad opening 1, which becomes a finished product when turned over.

According to the toad mouth 1 according to the first embodiment, play in the depth direction can be ensured by making the inner bottom flat, and the depth of the inner bottom can be ensured relatively widely and stably. Therefore, according to the toad mouth 1 according to the first embodiment, a plurality of coins can be stored in a state where the coins are laid down, making it easier to visually recognize the front or back sides of the plurality of stored coins, and making it easier to take out the coins. I can do it. According to the toss mouth 1 according to the first embodiment, there is no sewing thread on the outside, so there is less worry about thread breakage due to friction. Because the toad opening is used by putting it in a pocket of clothing or putting it in a bag, and it is frequently taken in and out, it is particularly susceptible to wear due to friction, especially on the outside part.

(Second embodiment)
As shown in FIGS. 11 to 14, the toad opening 2 according to the second embodiment of the present invention includes a cap (22a, 22b) that opens and closes to take in and take out stored items (articles), and a cap (22a, 22b). The bag-shaped portions (12a, 12b, 19a, 19b) that are connected to the storage space (bag body) for storing stored items, and the shape-stable portions that are fixed to the bag-shaped portions (12a, 12b, 19a, 19b) It has a converting mechanism 14. The cap (22a, 22b) has a first frame 22a and a second frame 22b, as shown in FIG. 11 and the like. The bag-shaped portions (12a, 12b, 19a, 19b) store items that are taken in and out through the openings. As shown in FIGS. 11 to 14, a first main surface portion 12a has a first upper side connected to the first frame 22a, and a second main surface portion 12a has the same shape as the first main surface portion 12a and has a second upper side connected to the second frame 22b. It has a second main surface portion 12b that faces the first main surface portion 12a in a mirror image relationship.

The first main surface portion 12a has a first side whose apex is connected to one end in the longitudinal direction of the first frame 22a, a first base that is continuous to the first side, and a first side that is continuous to the first base, The apex is connected to the other longitudinal end of the first frame 22a and has a second side opposite to the first side. The second main surface portion 12a has a third side that is connected to the first sides that are adjacent to each other and that face each other, and whose apex is connected to one end in the longitudinal direction of the second frame 22b. The second main surface portion 12a further has a second base side that is continuous with the third side side and connected to the adjacent first base side. Further, the second main surface portion 12a is continuous with the second base side and connected to a second side side facing adjacent to each other, and has a fourth side whose apex is connected to the other end in the longitudinal direction of the second frame 22b. Has sides. That is, the end face of the peripheral part of the first main surface portion 12a extending from the first side via the first base to the second side, and the second edge extending from the third side via the second base to the fourth side. The peripheral end faces of the main surface portion 12b are matched with each other to form a bag that provides a storage space between the first main surface portion 12a and the second main surface portion 12b.

The other end of the second frame 22b in the longitudinal direction corresponding to the other end of the first frame 22a in the longitudinal direction has a rotation center fixed by a first hinge part 24a. Similarly, the other longitudinal end of the second frame 22b, which corresponds to the other longitudinal end of the first frame 22a, has the center of rotation fixed by the second hinge portion 24b. Then, the first frame 22a and the second frame 22b rotate around the rotation center of the first hinge part 24a and the rotation center of the second hinge part 24b, opening and closing the entire toad opening 2 according to the second embodiment. I do. In the open state formed by the first frame 22a and the second frame 22b defined on a plane perpendicular to the center line connecting the rotation center of the first hinge part 24a and the rotation center of the second hinge part 24b. The rotation angle can be set arbitrarily.

The shape stabilizing mechanism 14, which aims to stabilize the shape of the toad mouth 2 according to the second embodiment, has a belt-like shape with a semicircular cross section in the intermediate product state, as shown in FIGS. 15 to 17, etc. It is a structure. On the other hand, the shape stabilizing mechanism 14 in the finished product state is formed into a flat oval shape as shown in FIG. This point is similar to FIG. 3(b). In the intermediate product state, the shape stabilizing mechanism 14 is continuously provided between the respective ends of the first main surface portion 12a and the second main surface portion 12b. As shown in FIG. 17(b) etc., in the intermediate product state, the shape stabilizing mechanism 14 having a semicircular cross section has a peripheral portion close to the first end surface 14a on the first main surface portion 12a. It is sewn and fixed using one sewing thread 16a. Similarly, in the intermediate product state, the peripheral portion near the second end surface 14b is sewn and fixed to the second main surface portion 12b using the second sewing thread 16b. As shown in FIG. 11, the toad mouth 2 according to the second embodiment further includes a first partition part 19a and a second partition part 19b inside the bag-shaped part (12a, 12b, 19a, 19b).

As shown in FIG. 11 and the like, the first frame 22a and the second frame 22b according to the second embodiment have a knob with a decorative bead fixed near the center of each, and when the knobs engage with each other, The caps (22a, 22b) can be closed. The caps (22a, 22b) may have an arch shape as shown in FIG. 11 or the like, or may have other shapes such as a square shape or a rounded corner shape. The method of fixing the caps (22a, 22b) to the first main surface portion 12a and the second main surface portion 12b may be caulking, sewing, or other methods. As shown in FIGS. 12 and 14, the first hinge part 24a and the second hinge part 24b are visible from the outside even in the closed state, which is different from the toad opening 1 according to the first embodiment. Both ends of the shape stabilizing mechanism 14 in the longitudinal direction are fixed in position by a first hinge part 24a and a second hinge part 24b at both ends of the base (22a, 22b). Therefore, both longitudinal ends of the shape stabilizing mechanism 14 are pressed inward of the bag body by the first hinge part 24a and the second hinge part 24b at both ends.

The shapes of the bag-shaped portions (12a, 12b, 19a, 19b) and the caps (22a, 22b) define the general overall shape of the toad mouth 2 according to the second embodiment. As shown in FIGS. 11 and 13(b), the first partition portion 19a is adjacent to the first main surface portion 12a, and the second partition portion 19b is adjacent to the second main surface portion 12b. The first partition part 19a and the second partition part 19b are smaller members than the first main surface part 12a and the second main surface part 12b, as shown in FIG. Although the shape does not matter, each of the first partition part 19a and the second partition part 19b includes a part of the first side and the third side, a part of the second side and the fourth side, and a first base. It is preferable that the positions of the end faces of the second base and the second base are aligned. As shown in the center of FIG. 11, the portions where the end surfaces of the peripheral portions of the first main surface portion 12a, the second main surface portion 12b, the first partition portion 19a, and the second partition portion 19b face each other have opposing surfaces. 18 appears linearly on the inner sole as an edge cutting the inner sole. In addition, in the toad opening 2 according to the second embodiment, the part surrounded by the first partition part 19a and the second partition part 19b among the insides of the bag-like parts (12a, 12b, 19a, 19b) is a storage space. In the second embodiment, the bottom of this storage space is defined as the "inner bottom."

In the opposing surfaces 18, the mutually opposing end surfaces may be fixed inseparably using an adhesive or the like, or may not be fixed so as to be separable. Even if the opposing end surfaces of the opposing surfaces 18 are not fixed to each other, the pressing force depending on the internal structure is generated in the direction of joining them together, so that the toad opening according to the second embodiment 2 is not easily separated. The pressing force depending on the internal structure originates from the turning process in the manufacturing process described later, and is a force that is generated in opposite directions on opposing end surfaces.

In the toad opening 2 according to the second embodiment, as shown in FIGS. 17(a) and 17(b), the peripheral part of the first main surface part 12a and the peripheral part of the first partition part 19a are connected to the first sewing thread 16a. The shape stabilizing mechanism 14 is fixed to the peripheral portion of the shape stabilizing mechanism 14 near the first end surface 14a. Similarly, the peripheral part of the second main surface part 12b and the peripheral part of the second partition part 19 are fixed to each other with the peripheral part near the second end surface 14b of the shape stabilizing mechanism 14 using the second sewing thread 16b. has been done. The first sewing thread 16a and the second sewing thread 16b are visible at the inner bottom of the toss opening 2 in the open state, and are almost invisible from the outside of the toss opening 2. In the toad opening 2 according to the second embodiment, only the parts where the shape stabilizing mechanism 14 is attached to the bag-shaped parts (12a, 12b, 19a, 19b) are sutured, so the outside of the toad opening 2 is sutured. The sewing thread is almost invisible.

As shown in FIGS. 11 to 17, the shape stabilizing mechanism 14 according to the second embodiment has a mating surface 18 exposed on both sides and the bottom of the bag-shaped portion (12a, 12b, 19a, 19b). It is arranged to cover the entire area. The shape stabilizing mechanism 14 has a belt-like structure in the intermediate product stage as shown in FIGS. 15 to 17. However, at the stage of the finished product, the first end surface 14a and the second end surface 14b appearing in the cross-sectional structure face each other and come into contact with each other along the opposing surface 18, as shown in FIG. 13(b). It is formed into an oval cross section. The position where the first end surface 14a and the second end surface 14b of the shape stabilizing mechanism 14 meet (contact) is the upper side of the two opposing surfaces of the cylindrical shape on the cross section of FIG. 13(b). It exists at the position of the plane.

In the toad mouth 2 according to the second embodiment, the mating structure (contact structure) between the first end surface 14a and the second end surface 14b of the shape stabilizing mechanism 14 is such that, like the mating surface 18, they face each other. The first end surface 14a and the second end surface 14b may be fixed with an adhesive or the like so that they cannot be separated, or may not be fixed so that they can be separated. Even if the first end surface 14a and the second end surface 14b of the shape stabilizing mechanism 14 that face each other are not fixed, they can be easily separated when using the toad opening 2 according to the second embodiment. It's not something you can do. This is because, due to the inside-out process in the manufacturing process, pressing forces from internal structures acting in opposite directions on the opposing end surfaces are generated in the direction of joining them together.

In the toad mouth 2 according to the second embodiment, the cross-sectional structure of the shape stabilizing mechanism 14 is a solid structure in which two opposing surfaces are in contact with each other in FIG. 13(b), but there is a slight gap inside. It may also have a hollow structure. As shown in FIG. 13(b), one surface (the upper side in FIG. 13(b)) that is in contact with the bag-like portions (12a, 12b, 19a, 19b) among the two opposing surfaces on the cross section of the shape stabilizing mechanism 14 Only the first main surface 12a and the second main surface 12b are sewn and fixed to each other. In reality, as shown in FIGS. 17(a) and 17(b), not only the first main surface portion 12a and the second main surface portion 12b but also the first partition portion 19a and the second partition portion 19b are sewn simultaneously. Fixed. As shown in FIGS. 11, 12, and 14, the portion of the shape stabilizing mechanism 14 that is visible from the outside becomes the apparent "outer bottom (outer periphery of the main body)" of the toad opening 2 according to the second embodiment. The bag-shaped parts (12a, 12b, 19a, 19b) and the shape stabilizing mechanism 14 according to the second embodiment may be made of any leather, but goat leather having appropriate hardness and softness is preferable. .

-Method for manufacturing toad mouth 2 according to second embodiment-
First, the first partition part 19a and the second partition part 19b have the same shape, the first main surface part 11a and the second main surface part 11b have the same shape, and the first end surface and the second end surface are parallel to the longitudinal direction. A band-like member that appears in a cross section is prepared as the shape stabilizing mechanism 14. At this stage, the shape stabilizing mechanism 14 is still a band-shaped member with a semicircular cross section. The shapes of the first main surface portion 12a and the first partition portion 19a are, for example, the shapes shown in FIG. 7. The first upper side of the first main surface portion 12a may have any shape as long as it can fix the base. As shown in FIGS. 17(a) and (b), in the peripheral area from the first side of the first main surface 12a to the second side via the first base, the peripheral part of the first main surface 12a is The peripheral portion near the first end surface 14a is sutured and fixed using the first sewing thread 16a so that the end surface and the first end surface 14a of the shape stabilizing mechanism 14 are aligned. At the same time, the end face of the peripheral part of the first partition part 19a is also sewn and fixed with the first sewing thread 16a so as to be aligned with the first end face 14a of the shape stabilizing mechanism 14.

Next, in the peripheral part from the third side of the second main surface part 12b to the fourth side via the second base, the end face of the peripheral part of the second main surface part 12b and the second end of the shape stabilizing mechanism 14 are connected. The peripheral portion near the second end side surface 14b is sewn and fixed using the second sewing thread 16b so that the side surfaces 14b are aligned. At the same time, the second partition part 19b is also sewn and fixed with the second sewing thread 16b so that the end face of the peripheral part and the second end side face 14b are aligned. At this stage, as shown in FIG. 15, a bag-shaped "intermediate product" is formed in which the first main surface section 12a and the second main surface section 12b face each other via the shape stabilizing mechanism 14, which is a band-shaped member. . As shown in FIGS. 15 to 17, the intermediate product is further provided with a first partition portion 19a on the outside of the first main surface portion 12a and a second partition portion 19b on the outside of the second main surface portion 12b. At the intermediate product stage, as shown in FIG. 17, the cross-sectional shape of the shape stabilizing mechanism 14 as a band-like member is a semicircular shape convexly curved upward, so that the first main surface portion 12a and the second main surface portion It is sandwiched in a convex manner inside 12b.

Next, the intermediate product shown in FIG. 15 is turned over so that the inside becomes the outside to form a "finished product". That is, when the intermediate product is turned over, the end face of the peripheral part from the first side of the first main surface part 12a to the second side via the first base, and the end face of the peripheral part from the third side of the second main surface part 12b to the second side. A bag-shaped portion (12a, 12b, 19a, 19b), which is a bag body, is formed in which the end surfaces of the peripheral portion that extend through the two bases and reach the fourth side face are opposed, and a mating surface 18 is also formed. In the step of turning over the intermediate product, the first end surface 14a and the second end surface 14b are simultaneously deformed into an annular shape so that the distance between them becomes shorter, and the first end surface 14a and the second end surface 14b are The shape stabilizing mechanism 14 is formed into a cylindrical cross-sectional shape in which the cylindrical parts 14b are opposed and collapsed. By turning over the intermediate product, the first end surface 14a sewn in the peripheral part from the first side to the second side via the first base in FIG. 15 and the second base from the third side are sewn together. The second end side surfaces 14b stitched together at the peripheral portion extending through the second side and reaching the fourth side are opposed to each other at the lower part of the opposing surface 18.

The peripheral end surfaces of the first main surface section 12a and the second main surface section 12b meet each other, and the end surfaces of the first partition section 19a and the second partition section 19b meet on the inside of the first main surface section 12a and the second main surface section 12b. As a result, as shown in FIG. 11 etc., the end of the opposing surface 18 appears linearly on the inner sole as an edge where the opposing surface 18 cuts the inner sole. In the cross-sectional structure at the intermediate product stage shown in FIG. 17(b), the shape stabilizing mechanism 14 has a first end surface 14a located at the first folded part and a second end face 14a located at the second folded part. It has a semicircular shape composed of a continuous body of a surface 14b and an exposed portion 14c located at the center. However, at the stage where the finished product is obtained by the turning process, the first end side surface 14a and the second end side surface 14b of the shape stabilizing mechanism 14 are matched with each other, and the shape stabilizing mechanism 14 is formed into a cylindrical cross-sectional shape. When the first end surface 14a and the second end surface 14b are brought into contact with each other by the turning process, the exposed portion 14c of the shape stabilizing mechanism 14 is exposed under tension and cannot be seen from the outside in the finished product. Become the part you can. The exposed portion 14c is visually recognized on the center line of the apparent outer periphery of the toss mouth 2 as a completed product. If the mating surface 18 or the mating portion of the shape stabilizing mechanism 14 is to be fixed, it may be fixed in this step. Finally, the cap (22a, 22b) is attached to the upper part, which will be the opening when the finished product is turned over, to complete the toad mouth 2.

-Shape stabilization-
In the state of the turned-over finished product according to the second embodiment, the mating portions (connection portions) of the mating surface 18 and the shape stabilizing mechanism 14 are Each must be properly joined and fixed to ensure stability and the depth of the inner bottom. If the mating surfaces 18 and the mating portions of the shape stabilizing mechanism 14 are properly and accurately aligned at all locations, the flat state of the inner bottom of the turned over finished product will be stabilized, and the shape of the shape stabilizing mechanism 14 will be stable. The overall shape of the mouth 1 is stabilized. The mechanism for stabilizing the overall shape is the same as that of the toad mouth 1 according to the first embodiment. Focusing only on the mating surface 18, since the finished product of the tomaguchi 2 was formed by turning over the intermediate product, the inner bottom was bent at the mating surface 18, and the first partition part 19a and the second partition part 19a were bent. The partition portion 19b, the first main surface portion 12a, and the second main surface portion 12b tend to form a V-shape. That is, the inner bottom of the opposing surface 18 is likely to sink. The reason why the opposing surfaces 18 on the inner bottom sinks is because the opposing end surfaces of the opposing surfaces 18 do not contact each other to form a cylindrical shape, but only a portion of each opposing end surface contacts each other, or the opposing surfaces 18 sink. This is because, even if the entire surfaces of the opposing end surfaces of the opposing surfaces 18 are in contact with each other, a portion of the opposing portion of the shape stabilizing mechanism 14 at the lower part of the opposing surface 18 is not in contact with each other. If only a portion of the opposing end surfaces come into contact with each other, the overall shape of the toad mouth 2 as a completed product in an upside-down state will become unstable.

In the turning process, the shape stabilizing mechanism 14, which was formed into a cylindrical cross-sectional shape, was a semicircular band-shaped member before being turned over, so it retains its original shape even when formed into a cylindrical shape due to its own elasticity. A ``repulsive force'' acts to try to return to the band-shaped member. The repulsive force that tends to return to the semicircular strip member acts particularly on the facing portions of the first end side surface 14a and the second end side surface 14b and on the opposing surface 18. The repulsive force due to this elasticity adjusts the inner bottom of the toad opening 2 in the finished product state so that it does not sink downward at the opposing surface 18, maintains a flat and wide inner bottom, and maintains the shape. Realize the stabilization of

If the inner bottom is adjusted to prevent it from sinking downward due to the repulsive force of elasticity and a flat inner bottom surface can be maintained, the mating surface 18 and the mating part (connection part) of the shape stabilizing mechanism 14 The entire surfaces of the opposing end surfaces are accurately aligned and in contact, and the pressing force between the opposing end surfaces of the opposing surface 18 and the opposing portion of the shape stabilizing mechanism 14 becomes equal. Then, the uniform pressing force is transmitted as "tension" to the entire body, and the overall shape of the toad mouth 2 becomes stable as a finished product. The overall shape of the toad mouth 2 is unique, similar to the toe mouth 1 according to the first embodiment shown in FIG. The repulsive force due to the elasticity of the shape stabilizing mechanism 14 also contributes to maintaining the overall shape of the toad opening 2. The opposing surfaces 18 and shape stabilizing mechanism 14 bring the entire surfaces of the opposing first and second end surfaces 14a and 14b into contact to equalize the pressing force between the end surfaces and maintain the overall shape of the toad opening 2. In order to do this, it is necessary that the mating surface 18 and the mating portion of the shape stabilizing mechanism 14 be appropriately and accurately aligned at any location in the upside down state.

In order to ensure that the opposing surfaces 18 and the opposing portions of the shape stabilizing mechanism 14 are appropriately aligned accurately at any point in the state of the completed product when it is turned over, the first step shown in FIG. It is necessary to finely adjust the seam allowance of the sewing thread 16a and the second sewing thread 16b. If the seam allowance is too short, the opposing surfaces 18 and the opposing portions of the shape stabilizing mechanism 14 cannot be aligned. If the mating parts cannot be aligned, the inner bottom gusset of the finished product, the toad opening 2, will not be flat, but will be V-shaped and unstable. Furthermore, if the seam allowance is too short, the opposing surfaces 18 and the opposing portions of the shape stabilizing mechanism 14 cannot be aligned, making it impossible to stabilize the overall shape of the tosshole 2 in the finished product. If the seam allowance is too long, the mating surfaces 18 and the mating parts (contact parts) of the shape stabilizing mechanism 14 cannot be aligned, and the depth (gusset) of the inner bottom of the finished toss mouth 2 will not be flat. Furthermore, if the seam allowance is too long, the mating surfaces 18 and the mating parts (contact parts) of the shape stabilizing mechanism 14 cannot be aligned, so the depth (gusset) of the inner bottom of the finished product, the toad opening 2, will be flat. Therefore, it is impossible to stabilize the overall shape of the toad opening 2, which becomes a finished product when turned over.

According to the toad opening 2 according to the second embodiment, play in the depth direction can be ensured by making the inner bottom flat, and the depth of the inner bottom can be ensured relatively widely and stably. Therefore, according to the toad mouth 2 according to the second embodiment, it is possible to store a plurality of coins in a state where they are laid down, making it easier to see the front or back sides of the stored coins, and making it easier to take out the coins. I can do it. According to the toss mouth 2 according to the second embodiment, there is no sewing thread on the outside, so there is less worry about thread breakage due to friction. Because the toad opening is used by putting it in a pocket of clothing or putting it in a bag, and it is frequently taken in and out, it is particularly susceptible to wear due to friction, especially on the outside part.

According to the toad mouth 2 according to the second embodiment, in the closed state, both ends of the shape stabilizing mechanism 14 in the longitudinal direction are the first hinge part 24a and the second hinge part 24b at both ends of the mouthpiece (22a, 22b). Since each bag is pressed inward by the bag body, a repulsive force against the pressure is always acting. This repulsive force assists in making it easier to open the toad mouth 2 at the moment it is opened. According to the toad mouth 2 according to the second embodiment, since a partition is provided inside the bag, it is easy to store and manage not only coins but also banknotes and various cards.

(Other embodiments)
As described above, the present invention has been described by the first and second embodiments, but the statements and drawings that form part of this disclosure should not be understood as limiting the present invention. Various alternative embodiments, implementations, and operational techniques will be apparent to those skilled in the art from this disclosure. For example, in the first and second embodiments, the mouthpiece is illustrated as having one toad mouth, but a bag body having a first mouthpiece may include a bag body having a second mouthpiece smaller than the first mouthpiece. The present invention is also applicable to "parent and child toad mouths". Further, the present invention can be applied to any type of bag as long as it has a toss opening structure, so it can also be applied to, for example, bags.

In this specification, it is also possible to combine the respective technical ideas described in the first and second embodiments and other embodiments. Thus, it goes without saying that the present invention includes various embodiments not described here. Therefore, the technical scope of the present invention is determined only by the matters specifying the invention in the claims that can be appropriately interpreted from the above explanation.

1, 2... Toad mouth 11a, 12a... First main surface portion 11b, 12b... Second main surface portion 13, 14... Shape stabilizing mechanism 13a, 14a... First end side surface 13b, 14b... Second end side surface 13c, 14c...Exposed parts 15a, 16a...First sewing thread 15b, 16b...Second sewing thread 17, 18...Opposing surface 19a...First partition part 19b...Second partition part 21a, 22a...First frame 21b, 22b...First frame 21b, 22b... 2 frames 23a, 24a...first hinge part 23b, 24b...second hinge part

Claims (4)

The first frame,
a second frame having the same shape and dimensions as the first frame and constituting a base that opens and closes together with the first frame to take in and take out stored items;
a first top side connected to the first frame; a first side side continuous to one vertex of the first top side; a first base side continuous to the first side; a first side continuous to the first base side and the first side a first main surface portion having a second side opposite to the first side and continuous to the other vertex of the first upper side;
a second top side connected to the second frame; a third side continuous to the second top side and opposite to the first side; a third side continuous to the third side and opposite to the first bottom side; 2 bases, a fourth side that is continuous to the second base, faces the second side, and further continues to the other apex of the second frame, and has a fourth side that is continuous with the second base and is further continuous with the other apex of the second frame, and allows the stored item to be held together with the first main surface. a second main surface portion forming a bag body for storing;
A band-shaped member having a first end surface and a second end surface, the first end surface being continuously sewn to the first side, the first base, and the second side; The second end side surfaces successively sewn to the third side, the second base, and the fourth side face each other in pairs and are in contact with each other on the entire surface, thereby stabilizing the cylindrical shape. mechanism and
Equipped with
Each end face of the first side and the third side, the second side and the fourth side, and the first base and the second base face each other as a pair and cover the entire surface. A toad mouth characterized by contact. The toad opening according to claim 1, wherein a mating portion of the first main surface portion and the second main surface portion is bonded and fixed. 3. The toad mouth according to claim 1, wherein both longitudinal ends of the shape stabilizing mechanism are pressed inward of the bag body by two hinge parts at both ends of the mouthpiece. A step of preparing a band-shaped member in which a first end surface and a second end surface appear in a cross section parallel to the longitudinal direction, and first and second main surface portions having the same shape;
The end surface of the peripheral portion of the first main surface portion extending from the first side of the first main surface via the first base to the second side facing the first side is aligned with the first end side surface. a step of suturing the end face of the peripheral part of the first main surface portion and the first end side face by setting as follows;
The end surface of the peripheral portion of the second main surface extending from the third side of the second main surface via the second base to the fourth side facing the third side is aligned with the second end side. a step of suturing the end surface of the peripheral portion of the second main surface portion and the second end side surface to form an intermediate product;
The first main surface part is turned over so that the inside of the intermediate product is the outside, and extends from the first side of the first main surface via the first base to the second side opposite to the first side. and an end surface of the peripheral portion of the second main surface portion extending from the third side of the second main surface portion to the fourth side via the second bottom side, and the first side The respective end surfaces of the side and the third side, the second side and the fourth side, and the first base and the second base are opposed to each other in pairs and are in contact with each other on the entire surface, and forming a shape stabilizing mechanism in which the band-like member has a cylindrical shape by facing the first end surface and the second end surface in pairs and contacting each other over the entire surface;
After the turning over step, a first frame is attached to a first upper side of the first main surface portion opposite to the first bottom side, and a second frame is attached to a second upper side of the second main surface portion opposite to the second bottom side. A method for manufacturing a toad opening, comprising the steps of: attaching it.

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