JP2013023929A - Connecting and fixing member, and method of manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lightweight connecting and fixing member excellent in strength and weatherability.SOLUTION: A connecting and fixing member of the present invention is a ring-shaped structure. The ring-shaped structure comprises low-melting-point and high-melting-point polymers, and fiber forming components composed of the high-melting-point polymer are mutually fixed for integration by melting of a heat-seal component composed of the low-melting-point polymer.

Description

  The present invention relates to a connection fixing member and a manufacturing method thereof.

  Conventionally, laying nets, geogrits, etc. on the ground in order to stably strengthen soft ground or embankments with steep slopes, or stabilize ground such as buildings and airport runways (laying nets) ) Is done. And various methods are conventionally examined as a method of connecting a net | network or a geogrit in the case of a laying net.

  As such a method, for example, in a work site, a net or geogrid is laid on the ground, a rope or the like is passed through an eye opening at an end of an adjacent net or geogrid, and the rope or the like is tightened and connected. Is mentioned.

  However, since the method of connecting using a rope or the like is performed manually, it is cumbersome and inefficient. In addition, it is difficult to perform the connecting work uniformly, and there is a problem that the quality varies.

  In order to solve the above problems, in Patent Document 1, a sheet material provided with a large number of holes along the edge is laid, and the edges of the sheet material are connected to each other through the holes. It is connected by a fixing member. The connecting and fixing member includes a body member including a leg portion for insertion through the eye hole and a connecting plate for connecting the leg portions, and the leg portion being inserted through the eye hole. It comprises a retaining member that is secured to the insertion end of the leg portion via a securing means.

  Patent Document 2 describes that a connection pin is used as a connection fixing member for connecting end portions of sheet materials.

  Metal products and synthetic resin products are used for the connecting and fixing members described in Patent Documents 1 and 2. Although metal products have high strength, there is a problem that their use is limited because they are heavy and hard. Moreover, since the metal product in which rust generate | occur | produces progresses corrosion from the surface toward the inside, there exists a problem that the intensity | strength which a metal originally has falls.

  On the other hand, synthetic resin products are lightweight and do not cause problems due to rust, and therefore have excellent weather resistance. However, since the strength is low, there is a problem that when a sheet or net, which is an object to be connected (a connection object) is connected, the connecting part is easily detached.

JP 2000-213509 A Utility Model Registration No. 3091540

  Accordingly, an object of the present invention is to solve the above-described problems and to provide a connecting and fixing member that is light in weight and excellent in strength and weather resistance. Furthermore, it aims at providing the manufacturing method which can manufacture such a connection fixing member cheaply and easily.

  As a result of intensive studies to solve the above-mentioned problems, the present inventors have reached the present invention.

That is, the present invention has the following contents.
(1) A connecting and fixing member that is a ring-shaped structure, and the ring-shaped structure is composed of a low-melting polymer and a high-melting polymer. A member for connecting and fixing, wherein fiber-forming components made of a high melting point polymer are fixed and integrated with each other.
(2) A method for producing a connecting and fixing member according to (1), wherein a fiber assembly composed of a low-melting polymer and a high-melting polymer is formed into a ring shape, and then subjected to a heat treatment to produce a low-melting polymer. The high melting point polymer is melted and the fiber form is maintained without being melted, and the fiber forming component composed of the high melting point polymer is fixed and integrated with each other by the heat fusion component composed of the low melting point polymer. A method for manufacturing a connecting and fixing member.
(3) A method for producing a connecting and fixing member according to (1), wherein a fiber assembly composed of a low-melting polymer and a high-melting polymer is coiled, and then subjected to a heat treatment to produce a low-melting polymer. The high melting point polymer is melted to maintain the fiber form, and the fiber forming component composed of the high melting point polymer is fixed and integrated with each other by the heat fusion component composed of the low melting point polymer. A method for producing a connecting and fixing member, comprising obtaining a structure and cutting the coiled structure.
(4) Use of an aggregate obtained by bundling composite fibers formed by combining a low-melting-point polymer as a heat-fusion component and a high-melting-point polymer as a fiber-forming component as a fiber assembly. (2) The manufacturing method of the member for connection fixation of (3).
(5) An aggregate obtained by converging a heat-sealing fiber made of a low-melting polymer and a fiber made of a high-melting polymer is used as the fiber aggregate (2) or (3) ) Manufacturing method for connecting and fixing.
(6) The method for producing a connecting and fixing member according to any one of (2) to (5), wherein the fibers constituting the fiber assembly are continuous fibers.
(7) A connection structure in which a plurality of objects to be connected are connected or fixed by the connection fixing member of (1).

  According to the present invention, it is possible to provide a connecting and fixing member that is lightweight, excellent in strength and weather resistance, and that can easily connect sheets and nets without requiring complicated work. Furthermore, according to the present invention, such a connecting and fixing member can be easily manufactured at low cost.

It is the schematic which shows the member for connection fixation of this invention. It is the schematic which shows the connection structure which connected the connection target object using the member for connection fixation of this invention. It is the schematic which shows another aspect of the connection structure which connected the connection target object using the member for connection fixation of this invention. It is a figure which shows the process of inserting the member for connection fixation of this invention, rotating through the hole of a connection target object. It is the schematic which shows the aspect which connected the member for connection fixation of this invention with respect to the member for connection fixation of this invention. The connecting and fixing member of the present invention is inserted in advance in a connection object, and the connecting and fixing member is obtained by inserting and connecting another connecting and fixing member of the present invention while rotating. It is the schematic which shows a connection structure. The connection fixing member of the present invention is inserted in advance in the connection object, and the connection fixing member inserted in another connection object of the present invention is inserted into the connection fixing member while rotating. It is the schematic which shows the connection structure obtained by making it connect.

Hereinafter, the present invention will be described in detail.
The connecting and fixing member of the present invention is a ring-shaped structure as shown in FIG. 1, and the fiber-forming component made of a high-melting polymer is fixed and integrated with each other by melting the heat-sealing component made of a low-melting polymer. It is made up of. That is, a low melting point polymer fixed in a ring shape by melting is used as a base material, and a fiber forming component made of a high melting point polymer exists in this base material. The high melting point polymer may be partially exposed on the surface of the ring-shaped structure.

  In the present invention, in order to obtain a connecting and fixing member, a fiber assembly in which a plurality of fibers are converged is used. The fiber assembly is composed of a high melting point component and a low melting point component. In the present invention, the reason for using the fiber assembly to obtain the connecting and fixing member is as follows. In other words, a fiber assembly in which a plurality of fibers are simply bundled is flexible and very flexible. Therefore, it can be set as the ring shape which has various winding diameters, winding pitches, and winding numbers.

  Then, after making such a fiber assembly into a ring shape, it is subjected to heat treatment to melt only the low-melting polymer, and the high-melting polymer maintains the fiber form, and the heat composed of the low-melting polymer. By melting the fusion component, the fiber-forming components made of the high melting point polymer are fixedly integrated with each other, and the connection fixing member of the present invention which is a ring-shaped structure is obtained.

  Alternatively, such a fiber assembly is coiled and then subjected to a heat treatment to melt only the low-melting polymer, while the high-melting polymer maintains the fiber form, and the heat composed of the low-melting polymer. By melting the fusion component, the fiber-forming components composed of the high melting point polymer are fixedly integrated with each other, and a coiled structure is obtained. And it is good also as a connection fixing member of this invention which is a ring-shaped structure by cut | disconnecting this coil-shaped structure suitably.

  In the present invention, since the fiber assembly is used, it is desired to make the ring shape even if the thickness of the fiber assembly itself is increased in order to improve the strength of the connecting and fixing member. The connecting and fixing member having ring-shaped structures having various sizes, pitches, and winding numbers can be easily obtained by a simple process. Furthermore, since it does not contain a metal as a main component, it is possible to obtain a connecting and fixing member that is lightweight and has excellent weather resistance.

  In the present invention, the heat fusion component is a component that is subjected to a heat treatment to melt and solidify, and is a polymer having a low melting point (low melting point polymer). On the other hand, the fiber-forming component is a component that maintains the fiber form and is a polymer (high-melting polymer) having a higher melting point than the low-melting-point polymer. In the present invention, the fiber assembly may be formed by bundling fibers made only of a low-melting polymer and fibers made only of a high-melting polymer. Alternatively, the fiber assembly may be formed by bundling composite fibers formed by combining a low-melting-point polymer that is a heat-fusion component and a high-melting-point polymer. Alternatively, the fiber assembly may be formed by bundling a low melting point polymer, a composite fiber formed by combining a high melting point polymer, and a fiber formed of a high melting point polymer.

  When the fiber assembly has a structure obtained by converging fibers made of a low-melting polymer and fibers made of a high-melting polymer, the fiber assembly is subjected to heat treatment later, The fibers made of the melting point polymer are melted and then solidified by cooling, and the fibers made of the high melting point polymer can be fixed and integrated with each other. And since the fiber which consists of a high melting point polymer exists in the melted and solidified low melting point polymer, the strength of the ring-shaped structure of the connecting and fixing member, particularly the bending strength, is improved as a fiber forming component maintaining the fiber form. To do.

  When the fiber assembly is formed by converging a composite fiber in which a low-melting polymer and a high-melting polymer are combined, the composite fiber includes a low-melting polymer in the sheath and a high core in the core. Examples thereof include a core-sheath type composite fiber in which a melting point polymer is arranged, and a side-by-side type composite fiber in which a low melting point polymer and a high melting point polymer are arranged in half.

  The low melting point polymer in the above-mentioned composite fiber has a role in which after the fiber aggregate is melted by being subjected to a heat treatment, it is solidified by cooling and the fiber forming components composed of the high melting point polymer are fixed and integrated with each other. Is responsible for. On the other hand, the high melting point polymer maintains the fiber form without being melted even when subjected to heat treatment, and is present in the base of the melted and solidified low melting point polymer. Improve strength, especially bending strength.

  If the fiber assembly is composed only of a low-melting polymer, the low-melting polymer melts and flows during heat treatment, and the ring-shaped structure cannot be held. Further, if the fiber assembly is composed only of a high-melting polymer that is a fiber-forming component, the fiber-forming component is not fixedly integrated and a ring-shaped structure cannot be obtained. The mixing ratio of the low melting point polymer and the high melting point polymer in the fiber assembly is preferably (low melting point polymer) / (high melting point polymer) = 30/70 to 70/30 in mass ratio. .

  As the low melting point polymer, any polymer having a spinning property by melt spinning may be used. For example, polyester polymer, polyamide polymer, polyolefin polymer, polybutyral polymer, polyacrylic polymer, polyethylene -A vinyl acetate copolymer and a polyurethane polymer are mentioned.

  The melting point of the low-melting polymer is preferably 20 ° C. or more lower than the melting point of the high-melting polymer that is a fiber forming component. By setting it as such temperature, even if it heat-processes, the physical property of a high melting-point polymer is not influenced and there exists an advantage that a ring form can be hold | maintained favorably. The melting point of the low-melting polymer is preferably in the range of 80 to 160 ° C. in consideration of processability and various physical properties. When the low melting point polymer does not have a clear melting point, the softening point of the low melting point polymer is regarded as the melting point.

  The preferred combination of low melting point polymer and high melting point polymer is low melting point polyester and high melting point polyester, low melting point polypropylene and high melting point polypropylene, polyethylene and polypropylene, low melting point nylon, considering the compatibility and thermal adhesiveness of both. And high melting point nylon.

  In addition, as said composite fiber, specifically, high melting point polyester with melting | fusing point 240 degreeC or more was distribute | arranged to the core part, and low melting point copolyester with melting | fusing point 110-200 degreeC was distribute | arranged to the sheath part. A core-sheath type composite fiber or a core-sheath type composite fiber in which a high melting point polyamide having a melting point of 180 ° C. or higher is arranged in the core part and a low melting point polyamide having a melting point of 80 to 150 ° C. is arranged in the sheath part is suitably used.

  The low-melting point polymer (thermal fusion component) and the high-melting point polymer (fiber-forming component) constituting the fiber assembly are preferably similar polymers. The reason is that the thermal adhesiveness between the low-melting polymer and the high-melting polymer is good, so that the fiber-forming components can be firmly fixed and integrated with each other, and a more rigid ring-shaped structure is obtained. Because it becomes possible. Therefore, in the fiber assembly, it is important to select a component having excellent thermal adhesion and thermal adhesiveness as the fiber forming component. In addition, if both are the same polymer, there is an advantage that it is preferable from the viewpoint of recycling.

  As a fiber formation component, it is preferable that it is what has a thermoplastic polymer as a main component from a viewpoint which can adjust fineness and a mechanical characteristic easily. Depending on the application and purpose, two or more thermoplastic polymers may be used in combination.

  Examples of such thermoplastic polymers include polyamide polymers, aromatic polyester polymers, aliphatic polyester polymers, polyolefin polymers, polyurethane polymers, and the like. Among these, a polyamide polymer is preferable from the viewpoint of wear resistance. From the viewpoint of dimensional stability, a polyester polymer is preferable. In addition, when the obtained connecting and fixing member is used for an application that requires natural degradation after use, an aliphatic polyester polymer having biodegradability is preferable. From the viewpoint of low density and light weight, a polyolefin-based polymer is preferable.

  In the fiber assembly, as long as the effect of the present invention is not impaired, a fiber composed of the above-described low-melting polymer, a fiber composed of a high-melting polymer, or a low-melting polymer and a high-melting polymer Fibers other than the composite fibers made of (for example, natural fibers, regenerated fibers, semi-synthetic fibers, metal fibers, glass fibers) and the like may be contained.

  The fiber assembly is a collection of fibers. Although the form is not particularly limited, for example, a yarn in which a plurality of fibers are aligned, a twisted yarn in which a plurality of fibers are twisted, a spun yarn, a twisted yarn in which the aligned yarns or twisted yarns are combined, and these And a braid made by using the yarn or a rope obtained by twisting.

  The fineness of the single fibers constituting the fiber assembly is preferably about 3 to 20 dtex, for example, from the viewpoint of flexibility required when the fiber assembly is formed in a ring shape. In addition, the total fineness of the fiber assembly may be, for example, about 5 to 5 million dtex from the viewpoint of flexibility required when the fiber assembly is formed in a ring shape.

  The number of filaments in the fiber assembly is not particularly limited, but is usually 25 to several million filaments.

  Although the form of the fiber which comprises a fiber assembly may be a short fiber or a continuous fiber, it is preferable that it is a continuous fiber. Since continuous fibers do not have fluff, there is an advantage that fluff does not stand on the surface of the obtained connecting and fixing member. Moreover, there exists an advantage that the bending strength of the member for connection fixation obtained is improved.

  The cross-sectional shape of the fibers constituting the fiber assembly may be any of a round cross section, a modified cross section, a hollow cross section, and the like. Further, the fibers contained in the fiber assembly may be subjected to processing such as false twisting or taslan processing.

  The cross-sectional shape of the fiber assembly is not particularly limited, and may be any of a round cross section, a modified cross section, a hollow cross section, and the like.

  Additives such as flame retardants, colorants, pigments, lubricants, weathering agents, antioxidants, heat-resistant agents and the like are added to the fibers constituting the fiber assembly, as long as the effects of the present invention are not impaired. It may be contained.

The manufacturing method of the connection fixing member of the present invention will be described below.
After winding the fiber assembly as described above into a predetermined ring shape, heat treatment is performed at a temperature at which the low melting point polymer melts and the high melting point polymer does not melt, and then it is cooled and solidified. . As a result, the fiber-forming component (high-melting-point component) in the fiber assembly is fixed and integrated with each other by the cooled and solidified heat-sealing component (low-melting-point polymer) to form a ring-shaped structure, which exhibits a ring shape. The connecting and fixing member of the present invention can be obtained.

  In winding the fiber assembly into a ring shape, a predetermined shaping shaft may be used. In the present invention, since a fiber assembly is used, there is flexibility between the fibers constituting the fiber assembly. Therefore, the fiber assembly is excellent in flexibility and can cope with any shape. Therefore, in order to obtain a desired connecting and fixing member according to the application, it is possible to appropriately adjust the diameter and pitch of the shaping shaft, the cross-sectional shape of the shaping shaft, etc., and various types of connecting and fixing members. Can be obtained. As a result, it is possible to easily obtain a connecting and fixing member that exhibits a desired strength well and has a size and a pitch according to the application.

  A heating method for applying a heat treatment to the fiber assembly wound in a ring shape is not particularly limited, and well-known means such as an iron, a hot air welder, a hot air dryer, and a tenter machine can be used. The heat treatment temperature may be appropriately set according to the heat treatment time or the like, and is set to a temperature not lower than the melting point of the high melting point polymer and not lower than the melting point of the low melting point polymer.

  Next, by cooling after the heat treatment, the molten low melting point polymer is solidified and integrated, and the fiber assembly becomes a rigid ring-shaped structure. By this heat treatment, a connecting and fixing member having a ring shape is obtained. As the cooling means, known means such as air cooling and water cooling can be used.

  Or, after winding the fiber assembly as described above in a spiral shape so as to have a predetermined coil shape, the low melting point polymer is melted and subjected to heat treatment at a temperature at which the high melting point polymer does not melt, Allow to cool and solidify. Thereby, the fiber-forming component (high melting point component) in the fiber assembly is fixedly integrated with each other by the heat-sealed component (low melting point polymer) that has been cooled and solidified to form a coiled structure. The coil-like structure may be appropriately cut to be a connection fixing member of the present invention having a ring shape.

  When using the connection fixing member of the present invention, the objects to be connected include sheets or nets. More specifically, it is used in soft ground and stable embankment with steep slopes, geogrids laid on the ground to stabilize the ground of buildings and airport runways, construction sites and construction sites. Anti-contamination film that prevents physical diffusion of pollution generated in dredging and landfill construction in the ocean and rivers, and does not affect the surrounding turbidity, Examples include fishing nets used to capture and cultivate shellfish.

  The aspect of the connection structure obtained by connecting connection objects, such as sheets and nets, using the connection fixing member of this invention is demonstrated below using FIG. 2 and FIG.

  In FIG. 2, as a hole for inserting the connection fixing member 1, the connection structure is obtained by using the mesh or mesh of the connection object 2 such as a net as it is. In FIG. 3, as a hole for inserting the connection fixing member 1, a connection structure is obtained using a hole 4 provided in a member such as a perforated belt 3.

  In order to connect sheets and nets (objects to be connected) using the connecting and fixing member of the present invention, the sheets and nets have a plurality of holes through which the connecting and fixing members are inserted. It is necessary to have. Then, as shown in FIG. 4, the connecting and fixing member of the present invention is inserted into the hole while rotating in the rotation direction 5 of the connecting and fixing member, thereby easily connecting the objects. be able to. In addition, it is preferable that the structure around the hole satisfies the strength required for connection or fixation.

  When connecting to obtain the connection structure of FIG. 2, the ends of the connection object 2 are overlapped so that the meshes and meshes of the ends of the connection object 2 are overlapped, thereby connecting and fixing the member 1. Is inserted into a hole (mesh or mesh) at the end of the overlapped connection object 2. Then, when the connection fixing member 1 is rotated in the rotation direction of the connection fixing member 1, the connection fixing member 1 is completely inserted into the hole of the connection object 2. Similarly, another connection fixing member is inserted into another hole to connect the objects to be connected. That is, simply by rotating the connecting and fixing member 1, the connecting and fixing member 1 can be easily inserted into the hole, and the connecting object 2 can be easily connected or fixed, as shown in FIG. Such a connection structure can be obtained.

  In FIG. 3, a perforated belt 3 having a plurality of holes 4 is sewn and joined to the end of a sheet that is the connection object 2. Then, two connection objects 2 to which the perforated belt 3 is joined are prepared, and the end portions are arranged so that the holes 4 are adjacent to each other. When the distal end of the connecting and fixing member 1 is inserted into the hole 4 provided in the perforated belt 3 and the connecting and fixing member 1 is rotated, the connecting and fixing member 1 easily enters the hole of the connection object 2. It is inserted. Similarly, the connection object can be easily connected to another hole using another connection fixing member. In addition to the perforated belt, a method of arbitrarily providing holes such as eyelets at the end of the connection object 2 may be employed.

  In addition, when connecting or fixing an object to a column or the like, a hole is provided in the column in advance, and a hole provided in the column and a hole provided in an end of the connection object are By inserting the connection fixing member and rotating the connection fixing member, the support column and the connection object can be connected.

Next, the connection or fixing of the connection fixing members of the present invention will be described with reference to FIG.
The connecting and fixing member of the present invention is a ring-shaped structure. As shown in FIG. 5, similarly to the case of using a hole such as a connection object or a support, by inserting another connection fixing member 6 while rotating another connection fixing member 6 with respect to one connection fixing member 1, The connecting and fixing members can be easily connected. When connecting and fixing the connection fixing members, the direction in which they are connected can be appropriately set according to the application, and may be perpendicular to each other or parallel to each other. .

  As another aspect, as shown in FIG. 6, a connection fixing member 1 is inserted in advance into the connection object 2, and another connection fixing member 6 is connected to the connection fixing member 1. It can be inserted while rotating, and both can be connected or fixed to form a connected structure. Alternatively, as shown in FIG. 7, a connection fixing member 1 is inserted into the connection object 2 in advance, and another connection fixing member inserted into another connection object 7 with respect to the member 1. It is also possible to make a connecting structure by inserting 6 while rotating and connecting or fixing.

  Next, the present invention will be specifically described based on Examples and Comparative Examples, but the present invention is not limited to these Examples.

(Production of rope A)
Polyethylene terephthalate (melting point: 260 ° C.) is arranged in the core part, copolymer polyester (melting point: 161 ° C.) copolymerized with 12 mol% of ε-caprolactone is arranged in the sheath part, and the mass ratio of the core part to the sheath part However, a composite fiber having (core part) / (sheath part) = 2.7 / 1 was prepared. Six multifilament yarns (1100 dtex / 96f) made of this composite fiber are gathered, Z-250 T / M, twisted with a lower twist to obtain a twisted yarn, and further, 11 obtained twisted yarns are gathered together. A twisted rope A having a diameter of 6 mmφ was obtained by twisting with S-120T / M and twisting with three twists, and further twisting three of them together with Z-120T / M.

Example 1
The rope A was coiled with a pitch of 25 mm on a metal shaft (stainless steel, diameter: 11 mm), and further heat-treated at 180 ° C. for 10 minutes using a dry heat oven. Next, after air-cooling for 30 minutes, the coil is removed from the shaft and the obtained coil is cut to obtain a ring-shaped structure as shown in FIG. 1, and the connecting and fixing member of Example 1 (diameter: 11 mm, winding number: 2) Winding). A plurality of these were produced.

  Two geogrids (mesh: 20 mm × 20 mm, width: 2 m, length: 1 m) were prepared, and these geogrids were overlaid so that the meshes overlapped. Then, a plurality of connecting and fixing members obtained as described above are prepared, inserted while rotating to the end of the geogrid, and connected to the geogrid, as shown in FIG. A connected structure was obtained.

(Example 2)
A 50 mm pitch perforated belt (width: 100 cm) was sewn on a polyester fabric (texture: plain weave, width: 1 m, length: 1 m). Two such polyester fabrics were prepared and arranged side by side so that the holes were adjacent to each other. Then, the connecting and fixing member obtained in Example 1 was inserted into the hole of the perforated belt while rotating, and the polyester fabric was connected to obtain a connecting structure as shown in FIG.

(Example 3)
The connecting and fixing member obtained in Example 1 is inserted into the end mesh of the geogrid (meshing: 20 mm × 20 mm, width: 2 m, length: 1 m) while rotating. Got inserted geogrid. Next, two geogrids into which the connecting and fixing members are inserted are prepared, and the connecting and fixing members are connected and fixed by inserting and rotating these connecting and fixing members, and a connecting structure as shown in FIG. I got a thing.

  In Examples 1 to 3, it was possible to produce a connecting and fixing member that is lightweight and excellent in weather resistance and strength by a simple process. Furthermore, the geogrid, the fabric, and the like could be easily connected by inserting these connecting and fixing members while rotating them.

1: Connection fixing member 2: Connection object 3: Perforated belt 4: Hole 5: Direction of rotation of the connection fixing member 6: Connection fixing member 7: Connection object

Claims (7)

  A connecting and fixing member that is a ring-shaped structure, which is composed of a low-melting polymer and a high-melting polymer, and has a high melting A connecting and fixing member in which fiber-forming components made of coalescence are fixedly integrated with each other.   A method for producing a connecting and fixing member according to claim 1, wherein the fiber assembly composed of the low-melting polymer and the high-melting polymer is formed into a ring shape, and then heat-treated to melt the low-melting polymer. The high melting point polymer is maintained in the fiber form without being melted, and the fiber forming component composed of the high melting point polymer is fixed and integrated with each other by the heat fusion component composed of the low melting point polymer. A method for manufacturing a connecting and fixing member.   A method for producing a connecting and fixing member according to claim 1, wherein a fiber assembly composed of a low-melting polymer and a high-melting polymer is coiled, and then heat-treated to melt the low-melting polymer. The high melting point polymer is not melted and the fiber form is maintained, and the fiber forming component composed of the high melting point polymer is fixed and integrated with each other by the heat fusion component composed of the low melting point polymer. And manufacturing the connecting and fixing member, wherein the coiled structure is cut.   Claims characterized in that as the fiber assembly, an assembly obtained by converging a composite fiber formed by combining a low-melting-point polymer that is a heat-fusion component and a high-melting-point polymer that is a fiber-forming component is used. Item 4. A method for producing a connection fixing member according to Item 2 or 3.   The connection according to claim 2 or 3, wherein an aggregate obtained by converging a heat-fusion fiber made of a low-melting polymer and a fiber made of a high-melting polymer is used as the fiber aggregate. A method for manufacturing a fixing member.   The method for producing a connecting and fixing member according to any one of claims 2 to 5, wherein the fibers constituting the fiber assembly are continuous fibers. A plurality of objects to be connected are connected or fixed by the connection fixing member according to claim 1.

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