JPH09149811A - Cord body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve appearance by using a metallic connection tool so as to mount a cord and molding a synthetic resin in the form of covering the connection tool. SOLUTION: The cord 2 is held in a space part 5 and attached to a metallic U-shaped connection tool 1 and a window hole 6 is pierced on the connection tool 1. In a state where the cord 2 is attached, a molding part 9 is integrally molded by the insertion molding of the synthetic resin in the form of covering the connection tool 1. At the time of the molding, a connection ring 8 is molded and the space part 5 and the window hole 6 are filled with the synthetic resin as well. As a result, the cord 2 is rigidly attached to the connection tool and this cord body such as a hand carrying cord or the like with beautiful appearance provided with the connection ring 8 on one end is completed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cord used as a hand strap for a mobile phone, a transistor radio, a second bag, a folding umbrella, or a cord used for a small slider as a pull tab of a slider for a slide fastener. It is a thing.

[0002]

2. Description of the Related Art Conventionally, as a hand-held cord for small items such as a folding umbrella and a transistor radio of this kind, a cord is formed into an endless shape in a figure 8 as shown in FIG. A string body in which both ends are abutted and polymerized, the abutted polymerized portion is temporarily fixed with a stapler needle, etc., and the temporarily fixed portion is covered with a molding portion made of synthetic resin by injection molding is disclosed in JP-B-60-
No. 58005.

Further, as shown in FIG. 10, the ends of the loop-shaped cords are butted, and the butted portions of the cords are embedded and joined in a thick plate-shaped synthetic resin molding terminal having a through hole in the center. The attached string body is disclosed in Japanese Patent Publication No. 1-48761.

[0004]

The known first example of the cord body mentioned in the preceding paragraph is unstable because the end portion of the cord cannot be firmly fixed by temporary fixing such as a stapler needle. The shape of the cord is limited, because the cord cannot be easily molded, the cord used is limited to a flat cord when viewed from the molding device, and the cords cannot have different shapes on the left and right of the molding part. There are various problems.

The known second example of the cord body is one in which the cords are aligned and the ends of the cords are embedded and joined to the molded terminals by injection molding means of synthetic resin. Since it is simply embedded in a synthetic resin terminal, there is a problem that the string is not fixed securely and a sturdy string cannot be manufactured.

The present invention has been made in view of the above-mentioned problems, and the invention according to claim 1 uses a metal connecting tool to attach the cord, and covers the connecting tool. It is a string body formed by integrally molding synthetic resin into a shape to form a molded part.The string body has a string attached to the fitting part, which prevents the string from being pulled out, and is sturdy and withstands long-term use. The main purpose is to provide a string that is easy to handle.

According to a second aspect of the present invention, in addition to the object of the first aspect of the present invention, a molded part formed by integral molding of synthetic resin is covered and molded on a metallic connector, and the molded part is connected during use. It is an object of the present invention to provide a cord body that can be maintained in a stable state for a long period of time without being peeled off from the tool.

[0008] The invention described in claim 3 is claim 1 or 2.
In addition to the object of the invention described above, it is an object to specify a wearing mode of a string and provide a string body which is convenient as a carrying string.

In addition to the object of the invention described in claim 1, 2 or 3, the inventions according to claims 4 and 5 specify the form of the connecting tool or the molding part to facilitate the attachment of the cord body to the product to be used. The purpose is to provide a cord.

In addition to the object of the invention described in claim 1, 2 or 3, the invention according to claim 6 specifies the form of the connector,
It is an object to provide a string body that is suitable for hand straps such as mobile phones and has a good appearance.

[0011]

In order to achieve the above-mentioned object, the invention according to claim 1 of the present invention is a metal connector 1 having a space portion 5 at an end thereof. Part is inserted and fixed in the space part 5 of the connector 1, and the space part 5 and the space part 5 of the connector 1 are formed by insert molding of synthetic resin.
The main structure is a cord body in which a synthetic resin is injected and coated on the surface of the above, and the molding portion 9 is integrally molded.

According to a second aspect of the present invention, in addition to the structure of the first aspect of the present invention, the metal connecting tool 1 is provided with a through hole 6 into which a synthetic resin can be injected. Is.

[0013] The invention according to claim 3 is the invention according to claim 1 or 2.
In addition to the configuration of the described invention, the space 5 of the metallic connector 1
The end portion of the two-folded cord 2 is inserted and fixed to the space 2, and the molding portion 9 integrally molded of synthetic resin is provided on the space portion 5 and its surface, and the other end of the cord 2 is a loop-shaped cord body. is there.

According to a fourth aspect of the present invention, in addition to the configuration of the first, second or third aspect of the present invention, the metallic connector 1 includes:
It is a cord body integrally provided with a projecting connecting ring 8 for attachment to a product in use on the side opposite to the space 5.

According to a fifth aspect of the present invention, in addition to the constitution of the first, second or third aspect of the present invention, the synthetic resin injected and coated on the metallic connector 1 is attached to the product to be used at the molded portion 9. It is a string body in which a connecting ring 8 for use is integrally formed in a protruding shape on the side opposite to the side on which the string is attached.

According to a sixth aspect of the present invention, in addition to the structure of the first, second or third aspect of the present invention, space portions 5 are provided at both ends of the metallic connector 1, and the space portions 5 and 5 are provided with cords 2. Is a string body in which the end portions of the cords are inserted and fixed, and the molded portion 9 of synthetic resin is molded on the space portion 5 and the surface thereof, and the cords 2 are arranged on both sides.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a cord body according to the present invention will be specifically described below with reference to the drawings.

In the cord body of the present invention, as shown in FIG. 1, a metallic connector 1 has a U-shaped vertical cross-section, and a plate-shaped upper piece 3 and a lower piece 4 are opposed to each other. A space 5 is formed so that the space can be sandwiched. The upper piece 3 and the lower piece 4 have through-hole shaped window holes 6
Are provided to facilitate injection of synthetic resin.

The upper piece 3 and the lower piece 4 of the connecting tool 1 are connected at the ends by a connecting wall 7, and an annular connecting ring 8 is integrally provided on the outer surface of the connecting wall 7 so as to project to the product to be used. It is designed for easy mounting. The upper piece 3 and the lower piece 4 may be formed so that the ends thereof are open in a V-shape to facilitate the insertion of the string 2. It is also possible to provide a convex portion or the like on the surfaces of the upper piece 3 and the lower piece 4 facing each other to form a discrepancy so that the string 2 can be firmly clamped and fixed.

The overlapped flat cord 2 is inserted into the space 5 between the upper piece 3 and the lower piece 4 of the connecting tool 1 thus formed,
In a state of being sandwiched and fixed by the upper piece 3 and the lower piece 4, the space 5 and its surface, that is, the surfaces of the upper piece 3 and the lower piece 4 are formed by insert molding of a synthetic resin such as polyamide, polyacetal, polypropylene, or poly (ethylene terephthalate). As shown in FIGS. 2 and 3, the forming portion 9 is provided to form a cord body, and the forming portion 9 reliably prevents the cord 2 from coming off from the connector 1.

Next, in the connector 1 shown in FIG. 4, the upper piece 3 and the lower piece 4 are connected at the ends by the connecting wall 7 to form the space 5, and the upper piece 3 and the lower piece 4 are connected to each other. The form in which each of the through-hole-shaped window holes 6 is formed is exactly the same as that in the above-described embodiment, but the connecting ring is not formed. The flat cord 2 is inserted into the space 5 of the connector 1 having such a configuration, and is clamped and fixed by the upper piece 3 and the lower piece 4.

With the string 2 inserted and fixed, it is placed in a molding die 10 as shown in FIG. 6, and at this time, the connecting tool 1 is clamped from above and below by a presser bar 12 which is arranged in the cavity 11 so as to be able to move forward and backward. Then, the synthetic resin is injection-molded to mold the space portion 5 of the connector 1 and the molding portion 9 on the surface thereof. At the time of molding, an annular connecting ring 8 is integrally formed on the outer surface of the connecting wall 7 of the connecting tool 1 to form a cord body for convenient attachment to the product used. It should be noted that the holding rod 12 does not necessarily hold the connector 1 and does not hinder the molding process even if the portion where the string 2 appears is held.

Further, in the connecting tool 1 shown in FIG. 7, the upper piece 3 and the lower piece 4 in the form of long plates are connected by the connecting wall 7 at the center thereof to form an overall E-shape. Through holes 6 are formed on the left and right sides of the lower piece 4, and spaces 5, 5 are formed at both ends of the connector 1. The string 2 is inserted from the left and right of the connecting tool 1 having such a configuration, and is clamped and fixed. The strings used at this time may be the same on the left and right, but the strings having different morphological qualities may be used on the left and right.

For example, as shown in FIG. 8, a large-diameter round cord 2 is inserted in parallel in one space portion 5 of the connecting tool 1 and clamped and fixed. On the other hand, a circular cord 2 having a small diameter is superposedly inserted into the other space 5 and sandwiched and fixed, and then the connector 1 is covered and molded with a synthetic resin to form a cylindrically shaped molded part 9. The small-diameter round cord 2 serves as a connecting ring 8 for attachment to a product to be used, and the large-diameter circular cord 2 is used as a hand strap. Incidentally, reference numeral 13 in the drawing denotes a trace hole of the presser bar 12 generated at the time of molding.

The string used as the string body of the present invention is a braided string of natural or synthetic fibers, a braided string, a woven tape, a pseudo leather string,
A leather strap or the like can be used.

[0026]

The cord of the present invention has the structure as described above, and has the following effects by this structure.

According to the first aspect of the present invention, the end portion of the string is inserted and fixed in the space of the metallic connector, and the space of the connector and its surface are made of synthetic resin by insert molding of synthetic resin. Since it is a string body that is integrally molded with the molded part by covering with, the attachment part of the string can be finished nicely and a graceful string body that does not cause rust etc. on the surface can be obtained, and by using the connecting tool There is an effect that a cord can be completely prevented from being pulled out, a tough cord that can withstand long-term use and a handle that is easy to handle can be obtained.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, since a window hole into which the synthetic resin can be injected is formed in the metallic connector, the synthetic resin is integrally molded. The molded part due to does not peel off from the connecting tool during use, can maintain a stable state for a long time, and has an effect of strengthening the attachment of the string.

The invention according to claim 3 is the invention according to claim 1 or 2.
In addition to the effects of the invention described, the end of the two-folded cord is inserted and fixed in the space of the metallic connector, the portion is provided with an integrally molded molding part, and the other end of the cord is looped. Since it is formed into a cord, it has an effect that it can be finished as a cord which is convenient as a hand strap and a cord which is also convenient as a pull tab.

According to the invention of claim 4, in addition to the effect of the invention of claim 1, 2 or 3, in the metallic connector, the connecting ring is integrally projected on the side opposite to the space portion, The cord is simply attached to the product to be used, and there is an effect that it can be applied particularly to a product to which a strong force is applied to the cord.

According to the invention of claim 5, in addition to the effect of the invention of claim 1, 2 or 3, since the connecting ring is integrally formed with the molded portion of the synthetic resin obtained by coating and molding the metallic connector,
The cord is simply attached to the product to be used, and there is an effect that it can be applied especially when the cord is used in a softly handled product.

According to a sixth aspect of the invention, in addition to the effects of the first, second or third aspect of the invention, space portions are provided at both ends of the metallic connector, and a string is inserted and fixed in the space portions. Since the surface is covered with synthetic resin to form the molded part and the string is arranged on both sides, it is suitable as a connecting ring in the case where attachment of the string body to the product to be used is simple and flexible. . The effect of the present invention is extremely remarkable, for example, it is most suitable as a hand strap for mobile phones.

[Brief description of the drawings]

FIG. 1 is a perspective view of a connector.

FIG. 2 is a perspective view of a cord body using the same connector.

FIG. 3 is a cross-sectional view in which the cord body is partially cut.

FIG. 4 is a perspective view of another form of connector.

FIG. 5 is a cross-sectional view of a cord body using the same connector.

[Fig. 6] Fig. 6 is a schematic view showing a forming device for a cord body.

FIG. 7 is a perspective view showing a connector of still another form.

FIG. 8 is a perspective view of a cord body using the same connector.

FIG. 9 is a perspective view of a known cord body.

FIG. 10 is a plan view of another known cord body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connecting tool 2 String 3 Upper piece 4 Lower piece 5 Space section 6 Window hole 7 Connecting wall 8 Connecting ring 9 Forming section

Claims (6)

[Claims] 1. In a metallic connector 1 having a space 5 at its end, the end of a string 2 is inserted and fixed in the space 5, and the space 5 of the connector 1 is formed by insert molding of synthetic resin. A cord body, which is obtained by injecting and coating a synthetic resin on the surface and integrally molding the molding portion 9. 2. The cord body according to claim 1, wherein the metallic connector 1 is provided with a window hole 6 into which a synthetic resin can be injected. 3. An end portion of a folded string 2 is inserted and fixed in a space 5 of a metallic connector 1, and a molded portion 9 made of synthetic resin is provided at the end portion, and the end of the string 2 is looped. The cord body according to claim 1 or 2, wherein the cord body is formed into a strip shape. 4. The cord body according to claim 1, 2 or 3, wherein a connecting ring 8 is integrally provided on the metal connecting tool 1 on the side opposite to the space 5. 5. The synthetic resin molding portion 9 injected and coated on the metallic connector 1 is provided with a connecting ring 8 integrally formed on the side opposite to the side on which the string is attached so as to project therefrom. The string described. 6. A space portion 5 is provided at both ends of a metallic connector 1, the ends of the cord 2 are inserted and fixed in the space portion 5, a molding portion 9 of synthetic resin is molded, and the cords 2 are arranged on both sides. Claim 1 which becomes,
The string according to 2 or 3.