JPH11238422A - Braid structure and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a braid structure and its manufacturing method, in which it is possible to prevent unbraiding at the end of cutting, secure smoothness in diameter enlargement, maintain flexibility, check external contaminant from permeating, ensure good vibration-proofness and silencing effect, and facilitate manufacture industrially. SOLUTION: The whole peripheral surface of a braid sleeve 2 made from wires 1 is covered with a skin film having a resilience of rubber so that a braid sleeve 2 equipped with skin film is formed. This sleeve 2 is enlarged diametrically or bent, and thereby the skin film is ruptured substantiall on the wires 1 of the braid sleeve 2, and the residual splinters of the rutured skin film are left in the condition substantially filling the mesh part of the braid sleeve 2 in the form of mesh-form skin film 3'.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a braided structure used for various purposes such as binding electric wires. The present invention also relates to a method for industrially advantageously producing such a braided structure. In the present invention, the term “braid” means a “braid” in which the filaments run obliquely with respect to the length direction and the filaments cross each other.

[0002]

2. Description of the Related Art A large number of wirings are provided inside electric and electronic devices such as automobiles, electric and electronic devices, between devices, and on a switchboard. Since this wiring is composed of a plurality of electric wires, it is necessary to tie it in some way to form a harness from the viewpoint of workability, storability, appearance and the like.

[0003] As a method of binding the wires, there are a method of inserting the wires into a molded tube and a method of winding an adhesive tape around the wires. However, these methods impair the flexibility and bendability of the wires. , Which limits the scope of application. In addition, since the diameter of the formed tube is fixed in the method of inserting the wiring into the formed tube, there is an inconvenience that various types of wires having a diameter exactly matching the diameter of the wiring must be prepared.

Therefore, as a binding material having flexibility and flexibility, a braided sleeve braided using braided filaments made of several resin mono (or multi) filaments made of polyester, polyamide or the like is suitable. It is cut to an appropriate length (for example, several centimeters to one meter). Since this braided sleeve expands and contracts in the radial direction, there is an advantage that it can freely cope with different wiring diameters or different numbers of wirings.

[0005] Japanese Utility Model Publication No. Hei 6-11599 discloses a metal monofilament made of a metal foil wound spirally with a space in between, and braided into a sleeve shape. This material can be used as a sleeve having an electromagnetic wave shielding property. Also, on pages 63 to 64 of "Noise Countermeasures Shielding Materials and Methods, Published by the Information Research Institute Co., Ltd., published on February 28, 1989", a flame-retardant fiber wrapped with fine tinned copper foil is braided into a sleeve shape. The illustrated sleeve for shielding electromagnetic waves is shown.

As described above, when the braided sleeve is used, the braided sleeve is cut into an appropriate length, and a wire composed of a plurality of electric wires is inserted through one end of the braided sleeve. The cutting of the braided sleeve is usually by mechanical cutting,
It may be blown out using a hot blade.

However, if the cutting of the braided sleeve is performed by mechanical cutting, there is inevitably a problem that the resin monofilament constituting the braided filament is frayed from the end when the wiring is inserted. In order to prevent such fraying, it is necessary to take measures such as wrapping adhesive tape around both ends of the braided sleeve before or after wiring insertion, but such measures are extremely troublesome, When the adhesive tape is wound before the wiring is inserted, the insertion workability is impaired. On the other hand, when the braided sleeve is cut by fusing, although fraying from the end can be prevented, the elasticity of the end is impaired and it is difficult to expand the diameter, making it extremely difficult to perform the wiring insertion operation. Problems arise.

[0008] Proposals have also been made for polymer coating the braided sleeve. For example, US Pat.
No. 87 discloses a braided sleeve in which a flexible tow such as glass fiber and a rigid filament such as stainless steel are braided, and also discloses that a polymer coating is applied to the obtained braided sleeve. .

Japanese Patent Application Laid-Open No. Hei 5-20948 discloses that at least an outer surface of a braided tube (braided sleeve) braided by using a braided wire composed of one or more resin monofilaments is provided with an eye of the braided tube. A braided tube for binding having a configuration in which an elastic coating treatment layer that is not closed and has no tackiness is formed. In the production, in order to prevent the eyes from being closed, attention is paid to the solid concentration when the braided tube is brought into contact with the elastomer latex.

[0010]

Among the above-mentioned conventional methods, the braided tube (braided sleeve) disclosed in JP-A-5-20948 prevents fraying from the end and increases the diameter (radial direction). This is an interesting thing because the property of elastically expanding is secured. However, in the actual elastic coating treatment with the treatment solution, the film may be too thin and the anti-fraying property may be insufficient, or conversely, the film may be too thick and the eyes may be blocked or the eyes may be expanded freely. There is a problem that the process management is not always easy. This method also opens the eye area,
Since a film is formed on the striated line or at the intersection of the striated line, there is naturally a limit in terms of the smoothness of the diameter expansion.

Under such a background, the present invention prevents fraying from the cut end, ensures smoothness of diameter expansion, maintains flexibility, and suppresses penetration of dirt from the outside. As well as anti-vibration and silencing properties,
Moreover, it is an object of the present invention to provide a braided structure that can be easily manufactured industrially and a method for manufacturing the same.

[0012]

According to the present invention, there is provided a braided structure.
The braided sleeve (2) made of the filament (1) is a braided sleeve (2) with a film (3) having a structure covered with a film (3) having rubber elasticity, and the film (3) Is substantially broken on the filament (1) of the braided sleeve (2), and the remnant of the broken film (3) is substantially a net-like film (3 '). The eye portion of the braided sleeve (2) is typically filled.

The method for manufacturing the braided structure according to the present invention includes the steps of:
Braided sleeve with a coating (3) whose entire surface is covered with a rubber elastic coating (3)
By using (2) and expanding or bending the braided sleeve (2) with the coating (3), the coating (3) is substantially broken on the filament (3) of the braided sleeve (2). And the remnants of the broken film (3) are left in a form of a net-like film (3 ') while substantially filling the meshes of the braided sleeve (2). Things.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail.

The braided sleeve (2) is manufactured by braiding the filament (1). In this case, the filament (1) is wound around a predetermined number of bobbins as one or one
Provided for braiding. The braided organization can be arbitrarily designed, including one set, two sets, and three sets.

The filament (1) includes synthetic fibers, natural fibers,
Those made of various fibers such as metal fibers, glass fibers, and carbon fibers are used. The filament (1) is a monofilament,
Any of a multifilament, a spun yarn, a covering yarn (a core yarn wound with another yarn or a foil wire), a plated yarn, a composite fiber yarn, or the like may be used. Among these, considering the application, strength, rigidity, cost, etc. comprehensively,
Of particular interest are polyester or polyamide monofilaments, and the braid may have from 1 to 8 monofilaments.
It is often used as a single article with the same number of books.

As the film (3) having rubber elasticity, natural rubber, styrene-butadiene copolymer rubber, styrene-
Coatings such as butadiene-vinylpyridine copolymer rubber, acrylonitrile-butadiene copolymer rubber, isoprene rubber, butyl rubber, chloroprene rubber, urethane elastomer, polyester elastomer, polyamide elastomer, acrylic elastomer, silicone elastomer, etc. . Among these, a vulcanizing or cross-linking type compounded with a vulcanizing agent or a cross-linking agent, which is vulcanized or cross-linked by curing after drying is preferable.

In the present invention, first, a braided sleeve
A film (3) is formed on the entire surface of (2). The film (3) is formed in the form of a latex, an emulsion or a solution in which the above polymer is dispersed or dissolved in water or an organic solvent (particularly a latex or a polymer having a low viscosity for its concentration and advantageous in terms of safety). (In the form of an emulsion), which can be achieved by contact with a braided sleeve (2). Examples of the contact method include a dipping method, a spray method, and a coating method. The processing liquid may contain a vulcanizing agent, a crosslinking agent, a vulcanization accelerator, an accelerator, an antioxidant, a lubricant, a stabilizer, a filler, a colorant, a softener, a pH adjuster, a dispersant, if necessary. , A surfactant, an adhesion improver, a thickening agent, and the like can be added at appropriate stages in appropriate amounts.

After the formation of the film (3), the film is dried to remove volatile components, and is further heated or vulcanized or crosslinked as required. As a result, the entire peripheral surface of the braided sleeve (2) is coated with the rubber elastic coating (3).
(3) A braided sleeve (2) is obtained.

Next, a braided sleeve with this film (3)
When (2) is expanded or bent, the coating (3) breaks substantially on the filament (3) of the braided sleeve (2). The broken pieces of the film (3) are left in a form of a mesh-like film (3 ') while substantially filling the mesh of the braided sleeve (2). The step of breaking the film (3) can be performed by the user.

In the above, a vulcanized (or crosslinked) type polymer is used as a polymer for forming the film (3),
The film (3) of the braided sleeve (2) with the film (3)
When (3) is performed during unvulcanized (uncrosslinked) or incomplete vulcanized (incompletely crosslinked), and when the coating (3) is completely vulcanized (crosslinked) after fracture, the above-mentioned fracture proceeds smoothly and The film (3 ') substantially fills the meshes of the braided sleeve (2), and the strength of the reticulated film (3') becomes favorable.

When the film (3) is broken mainly by expanding the braided sleeve (2) with the film (3),
(3) Insert an insert (ball, shell-shaped object, etc.) (4) with a diameter equal to or close to the maximum diameter of the expanded braided sleeve (2) inside the braided sleeve (2), While supporting the insert (4) with the rotating body (5) from the outside, braid the sleeve
It is preferable to adopt a method of pulling (2).
Thereby, a quick and reliable break can be achieved. For expanded diameter, braided sleeve with film (3)
(2) can also be achieved by applying a mechanical force such as compressing in the length direction to expand the diameter.

According to the method described above, the braided sleeve (2) made of the filament (1) is covered with the coating (3) having rubber elasticity, and the coating (3) is coated on the wire of the braided sleeve (2). Article
On (1), the net-like coating (3 '), which is in a substantially broken state, and is a remnant of the broken coating (3),
A braided structure having a structure that substantially fills the eyes of the braided sleeve (2) can be obtained.

The braided structure thus obtained has a cylindrical shape. If necessary, the braided sleeve (2) with the film (3) is replaced with the braided sleeve (2) with the film (3). After obtaining the braided structure or at an appropriate stage after obtaining the braided structure, the tape-shaped braided structure may be cut out in the length direction. In the case of a tape-shaped braided structure, an adhesive layer is provided on one side so that it can be wound around the object, both ear ends are machined, and corresponding fasteners are attached to both ear ends And then close the zipper after winding it around the wire.

The braided structure of the present invention is used for bundling (single wire, concentric stranded wire, composite stranded wire, flat stranded wire, braided wire, bare aluminum wire such as copper core aluminum wire; silk wound, cotton wound, enameled wire, Vinyl wires,
Insulated electric wires such as cords; various cables; optical fiber wires, optical fiber composite overhead ground wires; strings, ropes;
For bundling linear objects, columnar objects, etc.), for shielding electromagnetic waves (in this case, using conductive filaments as the filaments (1)), and for protection (for protecting various hoses, pipes, etc., such as automobiles) Protectors for hydraulic hoses and metal pipes).

<Operation> When the braided structure of the present invention is used, for example, when it is used for bundling, it is cut into an appropriate length, and a wire harness or the like is cut from its end. It only has to be inserted.

In the braided structure of the present invention, the film (3)
Is substantially broken on the filament (1) of the braided sleeve (2), so the diameter increases (the property of expanding elastically in the radial direction)
And the original flexible properties (flexibility and flexibility) of the braided sleeve (2) are almost maintained. In addition, since the mesh-like coating (3 ') substantially fills the eyes of the braided sleeve (2), fraying from the cut end is effectively prevented and dirt from the outside is also suppressed. In addition, even when a plurality of filaments (1) are used as one, the alignment of the filaments (1) is not broken. Even when used for binding automobile wiring to which vibration is applied, the vibration is reduced (vibration proof) and the sound generated when the vibration is applied is also small (silence). In addition, since the film (3) only needs to be formed on the entire peripheral surface of the braided sleeve (2), delicate control is not required in its manufacture, and the film (3) can be broken quickly and easily by widening or bending. Therefore, industrial production is easy.

[0028]

The present invention will be further described with reference to the following examples.

Embodiment 1 FIG. 1 is a perspective view showing an example of a braided sleeve (2).
(1) is a line.

FIG. 2 is a perspective view showing an example of a braided structure of the present invention manufactured by using the braided sleeve (2) of FIG. 1 in a natural diameter state. Exposed due to the fracture of the mesh, a reticulated film that is a remnant of the fractured film (3)
(3 ') fills the eyes of the braided sleeve (2).

FIGS. 3A and 3B are partially enlarged views of the braided structure of FIG. 2 before and after production, wherein (a) is a state before the film (3) is broken, and (b) is a state after the film (3) is broken. State of natural diameter, (c)
Indicates the expanded state after the film (3) is broken.

FIG. 4 is an explanatory view showing an example of a method of breaking the film (3) by expanding the diameter, and shows a state in which the breaking is performed by expanding the diameter using the insert (4).

As an example of the filament (1), three polyester monofilaments having a diameter of 0.12 mm and colored black are drawn and aligned, tied, braided by a 48-stroke braiding machine, and a braided sleeve having an inner diameter of 9 mm. (2) was manufactured and wound on a winder (see FIG. 1).

The braided sleeve (2) is unwound from a winder, dipped at room temperature through a bath of a commercially available natural rubber latex for producing finger cots, and then pulled out of the bath.
It was dried through a drying zone to obtain a semi-cure (semi-vulcanized) state. As a result, a braided sleeve (2) with a film (3) in which the entire peripheral surface of the braided sleeve (2) was covered with the film (3) was obtained (see (a) of FIG. 3).

Next, as shown in FIG. 4, an inner diameter 25 as an example of the insert (4) is attached to the braided sleeve (2) with the film (3).
Insert a sphere of mm to increase the diameter by 25/9 = 2.78 times and insert from outside with a roller as an example of a rotating body (5).
The film (3) was broken by pulling the braided sleeve (2) while supporting the (4), and then heated at a temperature of 80 ° C. for 15 minutes for complete vulcanization. As a result, an intended braided structure was obtained (see FIG. 2).

When the sleeve-shaped braided structure obtained in this manner was observed with a loupe, FIG.
As shown in (c), the film (3) is substantially broken on the filament (1) of the braided sleeve (2), and a reticulated film (remnant of the broken film (3)) is formed. 3 ') ((b) in FIG. 3,
(In (c), it is indicated by a scattered point.)
It was confirmed that the eyes were filled.

This braided structure had a smooth expansion and a flexible property (flexibility, flexibility). And after cutting this braided structure to 200mm length,
When performing the work of bundling, inserting, and tying 15 5 mm-diameter covered wires while expanding the end, the wire from the end
(1) Bundling work was easy because no fraying occurred. By the way, the cut of the braided sleeve (2) itself is not inevitable to be frayed from the end even with great care.

When the wire bundle tied by the above-described braided structure and the wire bundle tied by the braided sleeve (2) itself were placed on a vibrating plate and the sound deadening properties were compared, the former was better. Obviously, the sound deadening was excellent.

When one end of the braided structure and the braided sleeve (2) is sealed and water is poured with the opening side up, the former has a water retention time of 5 times or more. It was long. From this, it can be seen that in the braided structure of the present invention, since the mesh-like film (3 ′) is present at the eyes, the penetration of dirt from the outside can be suppressed.

Example 2 The sleeve-shaped braided structure obtained in Example 1 was cut open in the length direction to form a tape, and both ends were machined. I was able to do.

[0041]

As described in the section of operation, the braided structure of the present invention has the following advantages: (1) the smoothness of the diameter expansion (the property of elastic expansion in the radial direction) is secured; )), The original flexible properties (flexibility, flexibility) are almost maintained, ・ Fraying from the cut end is effectively prevented, ・ The penetration of dirt from the outside is suppressed,・ Even if two or more filaments (1) are used as one, the alignment of the filaments (1) is not broken down. ・ Even if it is used for binding automobile wiring with vibration. , Anti-vibration and sound-absorbing properties can be obtained.
Can be quickly and easily achieved, so that industrial production is easy, and that a tape-shaped braided structure can be cut out in the longitudinal direction to provide excellent effects.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a braided sleeve (2), wherein (1) is a filament.

2 is a perspective view showing an example of a braided structure of the present invention manufactured by using the braided sleeve (2) of FIG. 1 in a natural diameter state, in which a filament (1) is a fracture of a film (3). Exposed by
The reticulated film (3 '), which is a remnant of the broken film (3), fills the mesh of the braided sleeve (2).

3 is an enlarged view of a part of the braided structure of FIG. 2 before and after production, wherein (a) is a state before a film (3) is broken,
(B) Film (3) Natural diameter after fracture, (c) Film
(3) The state of diameter expansion after fracture is shown.

FIG. 4 is an explanatory view showing an example of a method of breaking the film (3) by expanding the diameter, and shows a state where the breaking is performed by expanding the diameter using the insert (4).

[Explanation of symbols]

 (1)… Filaments (2)… Braided sleeve, (3)… Coating, (3 ′)… Reticulated coating, (4)… Interpolating body, (5)… Rotating body

Claims (6)

[Claims] (1) A braided sleeve (2) made of a filament (1)
Is a braided sleeve (2) with a film (3) having a structure covered with a film (3) having rubber elasticity, and the film (3) is formed of a filament (1) of the braided sleeve (2). Above, the net-like coating (3 '), which is substantially broken, and is a remnant of the broken coating (3) substantially fills the mesh of the braided sleeve (2). A braided structure. 2. A braided structure having a tape-like structure in which the braided structure according to claim 1 is cut open in a longitudinal direction. 3. A coating (3) in which the entire peripheral surface of a braided sleeve (2) made of a filament (1) is coated with a coating (3) having rubber elasticity.
By using the braided sleeve (2) with the coating (3) and expanding or bending the braided sleeve (2) with the coating (3), the coating (3) is substantially placed on the filament (3) of the braided sleeve (2). And that the broken pieces of the film (3) remain in the form of a mesh-like film (3 ') while substantially filling the mesh of the braided sleeve (2). A method for producing a braided structure characterized by the following. The breaking of the coating (3) due to the expansion of the braided sleeve (2) with the coating (3) is performed by the braided sleeve (2) with the coating (3).
Inserting an insert (4) with a diameter equal to or close to the maximum diameter of the braided sleeve (2) in the expanded state, and pulling the braided sleeve (2) very hard The production method according to claim 3, wherein [5] A coating (3) of a braided sleeve (2) with a coating (3).
The film (3) is broken during unvulcanized (uncrosslinked) or incomplete vulcanized (incompletely crosslinked), and completely vulcanized (completely crosslinked) after the film (3) breaks. Item 3. The production method according to Item 3. 6. A braided sleeve (2) with a coating (3) according to claim 3.
Characterized in that the tape-shaped braided structure is cut open in the longitudinal direction at an appropriate stage to form a tape.