JP3384216B2 - String body - Google Patents

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 cord body of the first known example mentioned in the preceding paragraph is unstable because the fixation of the end portion of the cord cannot be firmly fixed by a temporary fixing such as a stapler needle and is unstable. The shape of the string is limited, such as that the molding of the part is not easy, the string used is limited to a flat string from the viewpoint of the molding device, and the string 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 consideration of the above-mentioned problems. According to the invention of claim 1, a metal connecting tool is used to attach the cord, and the cord is attached. In the state
A string body that is embedded in a synthetic resin and has a molding part formed on the surface, the string body is well-formed, and rust does not occur on the surface of the connector,
Moreover, the string is double clamped by the connector and the resin that covers it.
Proof technique of pulling out the string to withstand the use of robust long-term, it is the primary object to provide a handle is simple cords.

In addition to the object of the invention described in claim 1, it is an object of the invention in claim 2 to provide a cord body which is convenient as a carrying cord by specifying the mounting mode of the cord.

The invention described in claims 3 and 4 is defined by claim 1.
Alternatively, in addition to the object of the invention described in 2, it is an object to provide a cord body in which the form of the connector or the molding portion is specified, and the cord body is easily attached to the product to be used.

The invention according to claim 5 is the invention according to claim 1 or 2.
In addition to the object of the invention described above, it is an object to specify the form of the connecting tool and provide a string body suitable for hand straps of mobile phones and the like.

[0010]

Means for Solving the Problems] To achieve the above object, the invention described in claim 1 of the present invention, metallic steel connector may connect the upper piece 3 of the plate and bottom pieces 4 By wall 7
Spaced between the upper piece 3 and the lower piece 4 by connecting them in a direction.
5 is provided, and the upper piece 3 and the lower piece 4 have windows.
The hole 6 is bored, and the end of the string 2 is inserted into the space 5 and fixed.
Then, in this state, the resin is
Embedded in the space 1, the window hole 6 of the connector 1 and its surface.
A main body is a cord body in which a synthetic resin is injected and coated on the surface, and the molded portion 9 is integrally molded on the surface of the connector 1 .

According to a second aspect of the present invention, in addition to the structure of the first aspect of the invention, the end portion of the two-folded cord 2 is inserted and fixed in the space portion 5 of the metallic connector 1, and the space portion 5 is formed. Further, a molded part 9 made of synthetic resin is integrally formed on the surface thereof, and the other end of the string 2 is a string body formed in a loop shape.

The invention according to claim 3 is the invention according to claim 1 or 2.
In addition to the configuration of the invention described above, the metallic connector 1 is a string body integrally provided with a protruding connecting ring 8 for attachment to a product in use on the side opposite to the space 5.

The invention according to claim 4 is the invention according to claim 1 or 2.
In addition to the configuration of the invention described above, a connecting ring 8 for attaching to a product to be used is formed in a projecting shape on the side opposite to the string attachment side in the molded portion 9 of the synthetic resin injected and covered in the metal connecting tool 1. It is an integrally molded string.

The invention according to claim 5 is the invention according to claim 1 or 2.
In addition to the structure of the invention described above, space parts 5 are provided at both ends of the metallic connector 1, the ends of the string 2 are inserted and fixed in the space parts 5, 5, and the space part 5 and its surface are made of synthetic resin. It is a cord body in which the molding portion 9 is molded and the cords 2 are arranged on both sides.

[0015]

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 longitudinal section, and a plate-shaped upper piece 3 and a lower piece 4 face each other and a cord 2 is formed. 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 by a connecting wall 7 at the ends, 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 connecting tool 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 portion 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 back and forth. 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 a 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, large-diameter round cords 2 are inserted in parallel in one space portion 5 of the connecting tool 1 and clamped and fixed. On the other hand, a small-diameter round string 2 is superposedly inserted into the other space 5 and clamped 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 cord used as the cord body of the present invention is a braided cord of natural or synthetic fiber, a braided cord, a woven tape, a pseudo leather cord,
A leather strap or the like can be used.

[0024]

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, in the metal connecting tool, the plate-shaped upper piece and the lower piece are connected by the connecting wall.
Formed by connecting them in a facing manner, and forming a space between the upper piece and the lower piece.
Provided with, drilled the window hole to the upper piece and a lower piece, the spatial portion
And fixed by inserting the end of the string, the space portion of the connecting member by insert molding of synthetic resin, the window holes and a synthetic resin is injected and coated on its surface, integrally molded Taka et molding portion on the surface of the coupler It is possible to finish the attachment part of the string with good appearance.
When the connector is embedded in synthetic resin, a graceful string that does not rust on the surface is obtained, and the molding part peels off from the connector.
Without having to, yet straps of metal connector and the resin formed
Prevents doubly pulling out with the shape tool and is stable for a long time
The effect is that a durable string can be obtained in this state .

According to a second aspect of the invention, in addition to the effect of the first aspect of the invention, the end of the two-folded cord is inserted and fixed in the space of the metallic connector, and the portion is made of synthetic resin. Since the forming portion for molding is provided and the other end of the cord is formed in a loop shape, there is an effect that it can be finished into a cord body that is convenient as a hand strap and a cord body that is also convenient as a pull tab.

The invention according to claim 3 is the invention according to claim 1 or 2.
In addition to the effects of the invention described above, the metal connector is provided with a connecting ring integrally projecting on the side opposite to the space portion, which simplifies the attachment of the cord to the product in use. It has the effect of being adaptable when used in products to which strong force is applied.

The invention according to claim 4 is the invention according to claim 1 or 2.
In addition to the effects of the invention described above, since the connecting ring is integrally formed on the molded portion of the synthetic resin obtained by coating and molding the metal connecting tool, the attaching of the cord body to the product in use is simplified, and particularly the cord body is It has the effect of being adaptable when used in softly handled products.

The invention according to claim 5 is the invention according to claim 1 or 2.
In addition to the effects of the invention described, a space portion is provided at both ends of the metallic connector, a string is inserted and fixed in this space portion, and the surface thereof is covered with a synthetic resin to form a molding portion to form a string. Since it is arranged on both sides, it is suitable as a connecting ring when the attachment of the cord body to the product used is required to be 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 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]

1 connector 2 strings 3 upper piece 4 Lower piece 5 space 6 window holes 7 connecting wall 8 connecting rings 9 Molding department

Claims (5)

(57) [Claims] 1. A metal connecting tool comprises a plate-shaped upper piece 3 and a lower piece.
4 and 4 are connected to each other by a connecting wall 7 so as to face each other.
3 is provided between the lower piece 4 and the lower piece 4, and the upper piece 3
And bored a window opening 6 in the lower piece 4, spatial portion 5 the ends of the cord 2 inserted <br/> fixed by entering the space portion 5 of the connector 1 by insert molding of a synthetic resin, a window A cord body obtained by injecting and coating a synthetic resin on the hole 6 and its surface, and integrally molding a molding part 9 on the surface of the connector 1 . 2. An end portion of a two-folded cord 2 is inserted and fixed in a space 5 of a metallic connector 1, and the portion is provided with a molded portion 9 integrally molded of synthetic resin, and the end of the cord 2 is looped. made by forming the Jo claim 1 Symbol placing cords of. The 3. A connector 1 of metal, formed by projecting the connecting ring 8 on the side opposite to the space portion 5 integrally claim 1 or 2 cords according. 4. A metallic connector 1 of injection and the coupling ring 8 to the molding section 9 of the coated synthetic resin is integrally molded on the side opposite to the strap attached side formed by projecting claim 1 or 2, wherein in String. 5. 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 synthetic resin molding portion 9 is molded, and the cords 2 are arranged on both sides. Claim 1 or
Or the string described in 2 .