JP5229672B2 - Multi-spiral rubber cored braid ring and manufacturing method thereof - Google Patents

Description

  The present invention relates to a multi-spiral rubber cored braid ring used for hair decoration and the like, and a method of manufacturing the same.

  Conventionally, as shown in Patent Document 1, a rubber cored braid ring is made by flattening a long rubber core braided string by impregnating a portion of a predetermined length with an adhesive and curing the portion. A hardened part having a cut end face is made, and the cut end faces of the hardened part are made to face each other and bonded with an abutting adhesive.

  According to the invention of Patent Document 1, since the adhesive cuts the impregnated hardened portion, the braid is not loosened on the cut end face. Further, the cut end face can be formed flat. Since the cut end face is flat, there is an effect that, for example, the bonding can be performed accurately and quickly.

Japanese Patent No. 2936091

  The braided ring with rubber core shown in Patent Document 1 uses a single braid with rubber core to create a single braided ring. In recent years, a double spiral rubber cored braid ring 50 is manufactured and sold by using two rubber cored braids 51 and 52 as shown in FIG. At the joint portion of the double spiral rubber core-containing braid ring 50, both ends are bundled and tied with a thread 53, and a covering cloth 54 having an adhesive surface is wound around it.

  In the conventional example as shown in FIG. 8, both ends are first bundled, and then the work of binding with the thread 53 must be performed, so that workability is poor. In addition, the four braid rings 51 and 52 overlap each other at both ends, and the covering portion 54 has to be provided so as to cover the joint portion.

  Therefore, the present invention aims to improve the joint portion in the multi-spiral rubber core-containing braid ring, and the rubber having one joint portion by one rubber core braid without the joint portion rising. An object of the present invention is to provide a cored braid ring and a manufacturing method thereof.

  The multi-spiral rubber cored braid ring according to the present invention uses a rubber cored braid made of a rubber core and a sheath braid covering the rubber core, which is cut to a predetermined length. Form a ring part, wind the remaining part outside the ring part around the ring part a plurality of times, and abut the other end of the remaining part outside the ring part with the one end facing each other The present invention is provided with one joint portion bonded by an adhesive (claim 1).

  For this reason, both ends of one braided braid that has been cut to a predetermined length are bonded to each other and have one joint, and the joint of the braided ring with the rubber core cannot be seen unless care is taken. In addition, whether it is a double helix or a triple helix, there is only one joint, it is a connection of a single braid with a rubber core, and it will bear the expansion load evenly and is excellent in durability ing.

  In the method of manufacturing a multi-spiral rubber cored braid ring according to the present invention, a rubber cored braid made of a rubber core and a sheath braid covering the rubber core cut to a predetermined length is used. The process of adding a twist to the braid with rubber core between one end and the middle, and the process of forming a ring part by matching the middle to the one end while maintaining the added twist, and this ring part A step of winding the remaining portion outside the ring around the ring portion a plurality of times, and a step of abutting the other end of the remaining portion with the one end facing each other and bonding with an adhesive ( Claim 2).

  For this reason, a multi-spiral braid is manufactured in four steps. In the case of a double helix, in the first step, the middle of the braid with rubber core is pressed, and the braid with rubber core between one end and the middle is twisted. In the second step, the middle (half) is aligned with one end of the braid with rubber core. When it is carried by hand, a ring portion is formed by holding the thumb between the index finger. In the third step, the remaining portion outside the ring portion is wound around the ring portion a plurality of times. The number of times is appropriate, and for example, depending on the diameter of the ring portion, it is about 6 to 8 times.

In the fourth step, the other end is wound to approach the one end, and the other end and the one end face each other and are bonded by an adhesive. A double spiral rubber cored braid ring with one joint is produced. Finally, a finger is put in the ring and expanded and contracted to make the spiral state uniform. A cyanoacrylate adhesive is used as the adhesive.
Although this example is a case of a double helix, in the case of a triple helix, in the first step, about one third of the middle is pressed and twisted up to that point. In the second step, match the middle (1/3) to one end. The remaining part is about two thirds. In the third step, while winding the ring part a plurality of times, it is further wound a plurality of times by double from above. In the fourth step, it is the same that one end and the other end are abutted and bonded with an adhesive.

  Since the process of adding a twist to the braid with rubber core was added in the previous stage of forming the ring portion, the function of preventing the braided ring with rubber core from being twisted into an 8-character shape by restoring elasticity due to the twist of rubber. doing.

  When wrapping the remaining part outside the ring part around the rubber cored braid of the part constituting the ring part, it is wound in the direction opposite to the twisting direction of the rubber cored braid constituting the ring part. (Claim 3). For this reason, by twisting the braid with rubber core at the stage of making the loop part, and by winding the remaining part outside the loop part in the opposite direction to the twist, by twisting the rubber applied during the manufacturing process Restoring elasticity can avoid the inconvenience that the ring is twisted in an 8-character shape, and can maintain a stable circular shape.

  As described above, according to the invention of claim 1, both ends of one rubber core braid cut to a predetermined length are connected to each other, and only one joint portion is provided. . The diameter of the joint portion does not increase so much that the joint portion cannot be understood unless carefully viewed. Moreover, even if it is a triple helix as well as a double helix, there is only one joint, it is a connection of a single braid with a rubber core, and even if tensile tension is generated, the strength of multiples is 1 If it can be withstood, the load can be evenly shared, so that it is possible to provide a braided ring with a multi-spiral rubber core excellent in durability.

  According to the invention of claim 2, the manufacturing method has four steps, and not only the first step but also the second and third steps can be easily and easily performed. The both ends (one end and the other end) are made to face each other and are abutted against each other and bonded by an adhesive.

  Since the twist in the direction opposite to the spiral is added to the braided cord with the rubber core in the first step, the spiral twist direction, the spiral twist in the twist direction of the rubber cord, and the torsional elasticity are canceled out. It is possible to prevent the braided ring with rubber core from being twisted into an 8-character shape due to the restoring elasticity of the rubber. Further, according to the invention of claim 3, twisting of the braided string with rubber core is performed before the ring portion is formed. And the remaining portion outside the ring portion is wound in the opposite direction to the twist, thereby preventing the inconvenience that the braided ring with the rubber core is twisted into an eight shape due to the restoring elasticity due to the twist of the rubber. it can.

It is a top view of the braid with rubber core used for this invention. It is explanatory drawing of the 1st process which shows the manufacturing method of the multiple spiral rubber cored braid ring which concerns on this invention, and adds twist to a rubber core braided ring. It is explanatory drawing of the 2nd process which shows the manufacturing method of the multi-helix rubber core containing braid ring which concerns on this invention, and produces a ring part. It is explanatory drawing of the 3rd process which showed the manufacturing method of the braid ring with a multi-spiral rubber core which concerns on this invention, and wound the remaining site | parts outside a ring | wheel part in multiple times. 4 shows a method for manufacturing a multi-spiral rubber cored braid ring according to the present invention, wherein the other end of the remaining portion outside the ring portion is abutted against the one end and adhered by an adhesive. It is explanatory drawing. 1 is a plan view of a multi-spiral braid with a rubber core according to the present invention. FIG. It is explanatory drawing of the state which twisted the braided string with a rubber core, and when the ring was manufactured, the braided ring with multiple spiral rubber cores was twisted into an 8-character shape. It is a top view of a braid ring with a rubber core with a double spiral as a conventional example.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a plan view of a single braided braid 1 in which the present invention is implemented, with a rubber 2 at the center and a braid 3 covering the outside. The braid 3 is made by combining wooly nylon threads and the like, and is given an appropriate color. In the embodiment, the diameter is about 3 mm and the length is about 35 cm.

  FIG. 2 shows a diagram relating to the first step of the manufacturing method for manufacturing a double spiral rubber cored braid ring 7 which is an object of the present invention, and the inside of the rubber cored braid 1 cut to a fixed length. Hold it with your fingers (thumb and index finger). Then, a twist in the S direction is added to one end 1a. FIG. 3 shows a diagram relating to the second step, in which one end 1a of the braided cord 1 with rubber core is sandwiched between the thumb and forefinger, and then the middle (half) of the braid 1 is put together, for example, a diameter of 5 A ring portion 8 of about 5 cm is formed. Care should be taken so that the added twist does not return. The middle is held together between the thumb and index finger. Reference numeral 9 denotes a remaining portion outside the ring portion 8. In addition, in the case of a double helix, the middle is a half of a half site. In the case of a triple helix, the middle is a site of a third from one end.

  FIG. 4 shows a diagram relating to the third step of the manufacturing method of the present invention, and the remaining part 9 outside the ring part 8 of the rubber cored braid 1 is the rubber cored braid constituting the ring part 8. 1 is wound several times. The plurality of times is from 6 to 8 times depending on the diameter of the ring portion 8.

  The remaining portion 9 outside the annular portion 8 is wound around the annular portion 8 a plurality of times, but it is necessary to be performed in a direction opposite to the S direction applied to the annular portion 8 (Z twist direction). is there. At the time of winding, the other end 1b of the remaining portion 9 outside the ring portion 8 is made to move freely so that the twisting rotation opposite to the winding direction naturally generated by winding is not restricted. is necessary. As a result, the restoring force by the rubber can be reduced, the circular state as shown in FIG. 6 can always be maintained, and the appearance can be improved.

  FIG. 5 shows a diagram according to the fourth step of the manufacturing method of the present invention, in which one end 1a and the other end 1b of one rubber core-containing braid 1 are opposed to each other and bonded by an abutting adhesive. The joint portion 11 is one. In addition, in order to make joining of the one end 1a and the other end 1b easy, it is preferable to make a cutting | disconnection end surface into a plane by impregnating a paste agent etc. and making it cut | disconnect after hardening.

  As described above, the manufacturing method is a process in which a double spiral rubber core-containing braid is manufactured by four steps. Finally, a finger is put into the ring and stretched, expanded or contracted, and continuous by bonding. An action of removing local unevenness on one rubber core braid is performed to make the wound state (spiral state) uniform. Then, a double spiral rubber core-containing braid ring 7 as shown in FIG. 6 is manufactured.

  FIG. 7 shows the arrangement in the center of the rubber cored braid 1 when the double spiral rubber cored braid ring 7 is manufactured without twisting the rubber core braid 1 in the first step. The restored twisted elasticity of the rubber 2 represents a state in which the completed braided ring 7 with rubber core is twisted into an eight-letter shape. In this case, it can be used, but it looks very bad.

  As a method for solving the problem, before the ring portion 8 is formed as shown in FIG. 2, twisting is applied in one direction (S twist direction) when the one end 1a is viewed from the upper surface. The number of twists is about the number of times the remaining portion 9 outside the ring portion 8 is wound around the ring portion 8. For example, when the number of windings is six, it becomes about six.

  In Example 1, an example of a double helix rubber cored braid ring 7 is shown, but in the manufacturing method of a triple helix rubber cored braid ring, as a first step, Hold about one third of the part and add S direction twist from one end. As a second step, a ring portion is made by combining one end with the middle (one third). The remaining part is about two thirds. As a third step, a double helix is made while the remaining third is wrapped around the ring a plurality of times. Of course, the multiple winding is performed in the Z twist direction. Further, a third of the twisted portion is double-wound from above to make a triple helix. As a fourth step, one end and the other end are brought into contact with each other and bonded with an adhesive to complete a triple spiral rubber core-containing braid ring.

1 rubber cored braid 1a one end 1b other end 2 rubber 3 braid 7 double spiral rubber core braid ring
8 Ring 9 Remaining part 11 outside the ring 11 Joint

Claims (3)

  Using a braid with a rubber core made of a rubber core and an outer braid that covers the rubber core that has been cut to a predetermined length, a ring is formed by aligning the middle with one end of the braid, and the rest outside this ring A multi-spiral rubber characterized in that it is provided with a single joint portion that is wound around the ring portion a plurality of times, and the other end of the remaining portion is abutted against the other end and bonded with an adhesive. Core braid ring.   Using a braid with a rubber core made of a rubber core and an outer braid that covers it, cut to a predetermined length, press the middle of the braid, and twist the braid with a rubber core from one end to the middle. The added step, the step of forming the ring portion by aligning the middle of the end while maintaining the added twist, and the step of winding the remaining portion outside the ring portion around the ring portion a plurality of times And a step of abutting the other end of the remaining part outside the ring portion with the one end facing each other and adhering with an adhesive. Method.   When wrapping the remaining part outside the ring part around the rubber cored braid of the part constituting the ring part, it is wound in the direction opposite to the twisting direction of the rubber cored braid constituting the ring part. The method for producing a braided ring with a multi-spiral rubber core according to claim 2, wherein

Images