JP2009195043A - Electric wire fixing method and application tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cable fixing method which saves a space for cabling when the cables are laid at the construction site. <P>SOLUTION: One or a plurality of cables 2 are laid along a wall surface 1, and are coated with a resin 3 to fix the cables 2 to the wall surface 1. According to this cable fixing method, the cables are fixed to the wall 1 with the resin 3 to the wall surface 1 without using a member for housing the cables 2 therein. The cables 2 thus is fixed to an optional position through an optional route. Hence a space for wiring is saved. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electric wire fixing method and an application tool suitable for carrying out the method.

  Conventionally, for example, when wiring an electric wire in a switchboard or a control panel, the inner wall surface of the panel (for example, floor surface, side surface, ceiling surface, etc.) using a cable duct as described in Patent Document 1, for example. It has been fixed to.

Patent Document 2 discloses a method of forming a predetermined number of wire harnesses by binding a few electric wires with a resin using a mold and fixing the wire harness to a casing. . Specifically, when forming the wire harness, the wire harness is formed by molding a fixing portion having a hole simultaneously with the binding of the electric wires and fitting the hole of the fixing portion to a boss provided in the housing. Secure to the chassis.
JP 2007-31532 A JP 2006-66193 A

  In the method using the cable duct as described above, since the cable duct that accommodates the electric wire extends linearly with a relatively large cross-sectional shape, the place where the cable duct is installed is limited, Requires a lot of space. Furthermore, before wiring the electric wires, it is necessary to fix the cable duct.

  On the other hand, in the method as disclosed in Patent Document 2, there is no member that accommodates the electric wire, and since a fixing position can be arbitrarily selected and a wire harness having a shape matched thereto can be formed. The space required for the wiring of electric wires can be reduced. However, for that purpose, it is necessary to prepare a complicated three-dimensional mold according to the wiring location. That is, the method disclosed in Patent Document 2 is intended for factory production of mass-produced products, and is not suitable for on-site construction. This is clear from forming a wire harness having connectors at both ends.

  In view of such circumstances, an object of the present invention is to provide an electric wire fixing method capable of saving wiring space during construction on site and a coating tool suitable for executing the method. To do.

  In order to achieve the above object, the present invention provides a method for fixing an electric wire, in which one or a plurality of electric wires are placed along a wall surface, and a resin is applied thereon to fix the electric wire to the wall surface.

  Further, the present invention is an application tool used when applying resin from above the electric wire along the wall surface, and has a tip portion that can contact the wall surface in a state of straddling the electric wire. An application tool is provided in which a discharge port for discharging resin is provided on the inner surface of the tip.

  According to the electric wire fixing method having the above-described configuration, since the electric wire is fixed to the wall surface with a resin without using a member that accommodates the electric wire, the electric wire can be fixed at an arbitrary position through an arbitrary route. Therefore, space saving of wiring can be achieved.

  Further, if the application tool having the above-described configuration is used, the resin can be applied while adjusting the shape when the above method is performed.

  The best mode for carrying out the present invention will be described below with reference to the drawings. The following description relates to an example of the present invention, and the present invention is not limited to these.

  In FIG. 1, the wiring state which fixed the electric wire 2 to the wall surface 1 with the fixing method of the electric wire which concerns on one Embodiment of this invention is shown. On the left side of FIG. 1, a plurality of (6 in the illustrated example) electric wires 2 are fixed to the wall surface 1 by the resin 3 in a state of being arranged side by side (upper and lower in the illustrated example), and on the right side, one electric wire 2 is fixed. Is bent downward, and the remaining five electric wires 2 extend straight. In the lower side of FIG. 1, the electric wires 2 bent downward are fixed to the wall surface 1 by a resin 3 alone, and on the right side of FIG. It is fixed to the wall surface 1 in a lined-up state.

  The wall surface 1 may be a panel inner wall surface (for example, a floor surface, a side surface, a ceiling surface, etc.) such as a switchboard or a control panel, or may be an outer surface or an inner surface of a device such as an elevator. That is, the wall surface 1 is a surface of an object to which the electric wire 2 is to be fixed, that is, a support surface irrespective of the direction of the surface.

  The electric wire fixing method of the present embodiment includes a temporary fixing process and an application process.

  In the temporary fixing step, a state in which the electric wire 2 is placed along the wall surface 1 is formed. First, as shown in FIG. 2A, a temporary fixing layer 31 is formed by applying a resin 3 to a predetermined region of the wall surface 1 where the electric wire 2 is fixed. Next, as shown in FIG. 2B, the electric wire 2 is arranged on the resin 3 and temporarily fixed before the resin 3 constituting the temporary fixing layer 31 is cured. The application of the resin 3 is performed using the cartridge 5 and the gun 4 shown in FIG. 3 and the temporarily fixing application tool 6 shown in FIG.

  A resin 3 is sealed in the cartridge 5. The resin 3 is not particularly limited as long as it has a viscosity that does not sag when applied to the wall 1, and examples thereof include polyester resins, amino alkyd resins, styrenated alkyd resins, vinyl resins, Acrylic resin, acrylic urethane resin, silicone resin, fluororesin, epoxy resin, epoxy polyamide resin, urethane resin, chlorinated rubber resin, phenol resin, etc., these resins include catalysts, crosslinking agents, curing agents, Fillers, antifoaming agents, foaming agents, dispersants, emulsifiers, diluents, pigments, plasticizers, preservatives, disinfectants, anti-skinning agents, anti-coloring agents, anti-settling agents, surfactants, thickeners Various additives such as a thixotropic agent and a wax are blended. Preferably, the viscosity of the resin 3 is 0.1 to 200 Pa · s at 20 ° C. A more preferable viscosity of the resin 3 is 1.0 to 150 Pa · s at 20 ° C.

  The gun 4 pushes the resin 3 from the nozzle 5 a of the cartridge 5 by pushing the bottom surface of the cartridge 5. As the gun 4, for example, a caulking gun for sealing can be used as it is.

  The temporary fixing application tool 6 is attached to the tip of the cartridge 5 as shown in FIG. Specifically, as shown in FIG. 4A, the temporary fixing application tool 6 has a substantially cylindrical shape, and the rear end portion 61 is fixed to the front end portion of the cartridge 5. The cartridge 5 is attached to the tip portion. In addition, a linear opening 6 a is provided in the front end surface 62 of the temporary fixing application tool 6, and the resin 3 extruded from the nozzle 5 a of the cartridge 5 is placed inside the temporary fixing application tool 6. A flow path (not shown) leading to the opening 6a is provided.

  When the resin 3 is applied to the wall surface 1, the gun 4 extends in a direction perpendicular to the opening 6 a in a state where the application tool 6 for temporary fixing is directed to the wall surface 1 so that the opening 6 a is parallel to the wall surface 1. Operate gun 4 while moving. In this way, the resin 3 can be easily applied in a strip shape on the wall surface 1. After that, if the electric wire 2 is arranged on the uncured resin 3, the electric wire 2 is held by the temporary fixing layer 31 by the adhesive force of the resin 3, so that the electric wire 2 is temporarily fixed on the wall surface 1. Can do.

  The fixing of the rear end portion 61 of the temporary fixing application tool 6 to the front end portion of the cartridge 5 may be performed by screwing, for example, using a clamp member or the like. Alternatively, for example, as shown in FIG. 5B, the cartridge 5 includes a main body portion 52 and a nozzle portion 51 that can be attached to and detached from the main body portion 52, and the temporary fixing application tool 6 is used instead of the nozzle portion 51. The rear end portion 61 may be attached to the main body portion 52. As the detachable structure in this case, a fitting structure or a screwed structure of a male screw and a female screw can be employed.

  In addition, as the temporary fixing application tool 6, various shapes can be adopted, and for example, a temporary application tool 6 'having a shape as shown in FIG. 4B may be used. The temporary fixing application tool 6 ′ has a fixing portion 63 fixed to the tip portion of the cartridge 5, a rectangular plate-like tip portion 64, and extends obliquely from one end surface of the tip portion 64 toward the fixing portion 63. A connecting portion 65 is provided. And the opening 6a is provided in the end surface adjacent to the said one end surface of the front-end | tip part 64. As shown in FIG. If such a temporary fixing application tool 6 ′ is used, the opening 6 a and the wall surface 1 can be easily kept parallel by applying the surface 64 a of the tip 64 to the wall surface 1.

  Further, the temporary fixing application tool 6 (or 6 ′) does not need to be attached to the cartridge 5, and may be attached to the tip of the gun 4.

  In the coating step, as shown in FIG. 2 (c), the electric wire 2 is formed by applying the resin 3 from above the electric wire 2 held by the temporary fixing layer 31 and extending along the wall surface 1 to form the surface layer 32. Fix to the wall 1. The application of the resin 3 is performed by using a cartridge 5 and a gun 4 shown in FIG. 3 and an application tool 7 shown in FIG. 2 is performed so as to form a shape extending in the extending direction.

  The length of the surface layer 32 (predetermined length) may be the same as, or longer or shorter than, the temporary fixing layer 31. The width of the surface layer 32 (the width of the predetermined cross-sectional shape) may be the same as the width of the temporary fixing layer 31 or may be longer or shorter than that.

  The application tool 7 has a fixing portion 71 fixed to the tip portion of the cartridge 5, a tip portion 72, and a relay portion 73 that connects the tip portion 72 and the fixing portion 71. In the illustrated example, the relay part 73 is bent at a right angle. However, for example, the relay part 73 may be linear, and the tip part 72, the relay part 73, and the fixing part 71 may be arranged on a straight line. Or the front-end | tip part 72, the relay part 73, and the fixing | fixed part 71 do not need to be divided clearly, and those outer surfaces may be continuing.

  The fixing portion 71 may be fixed to the front end portion of the cartridge 5 by screwing or a clamping member, a fitting structure or a screwing structure, and the like, similarly to the rear end portion 61 of the temporary fixing application tool 6.

  The distal end portion 72 has a substantially U-shape in a plan view that can contact the wall surface 1 in a state of straddling the electric wire 2, and the distal end surface can come into surface contact with the wall surface 1 with the electric wire 2 interposed therebetween. A pair of contact surfaces 72a is configured. Further, a discharge port 7 a for discharging the resin 3 is provided on the inner side surface 72 b of the distal end portion 72. More specifically, the discharge port 7a is formed to extend over three surfaces constituting the inner surface 72b with a predetermined width.

  The inside of the tip 72 is a cavity. Inside the relay portion 73, a flow path (not shown) for guiding the resin 3 pushed out from the nozzle 5 a of the cartridge 5 to the internal space of the tip portion 72 is provided. For this reason, the resin 3 pushed out from the nozzle 5a of the cartridge 5 is temporarily stored in the front end portion 72 and then discharged from the discharge port 7a.

  When the resin 3 is applied from above the electric wire 2, the gun 4 is operated while moving the gun 4 along the extending direction of the electric wire 2 with the contact surface 72 a of the application tool 7 facing the wall surface 1. To do. If it does in this way, the shape extended in the direction where the electric wire 2 is extended in the rectangular cross-sectional shape on the wall surface 1 is formed.

  In addition, the front-end | tip part 72 should just have the shape which can contact | abut to the wall surface 1 in the state straddling the electric wire 2, for example, as shown in FIG. As shown in (b), it may be substantially V-shaped when viewed from the front.

  Also, the application tool 7 does not need to be attached to the cartridge 5 like the temporary fixing application tool, and may be attached to the tip of the gun 4.

  As described above, in the electric wire fixing method according to the present embodiment, the electric wire 2 is fixed to the wall surface 1 with the resin 3 without using a member that accommodates the electric wire. Can be fixed in the position. For example, the electric wire 2 can be bent so as to sew a vacant space in the board, and only necessary portions can be fixed. Therefore, the degree of freedom of wiring is improved, and space saving of wiring can be achieved. Moreover, if the resin 3 is peeled off from the wall surface 1 or the electric wire 2, the wiring of the electric wire 2 can be easily performed again.

  Here, when applying the resin 3 from above the electric wire 2, a temporary fixing application tool 6 (or 6 ′) used for temporary fixing may be used instead of the application tool 7. Alternatively, the resin 3 extruded from the nozzle 5a of the cartridge 5 may be applied directly onto the wall surface 1 without using an application tool. However, if the application tool 7 is used as in this embodiment, the resin 3 can be applied while adjusting the shape, and the appearance after construction is improved. Moreover, since the application tool 7 has a pair of contact surfaces 72a that can be brought into surface contact with the wall surface 1, the contact surfaces 72a can be used as a guide when the gun 4 is moved. Good.

  Further, when the resin 3 is applied from above the electric wire 2, it is possible to apply the resin 3 in a spot shape, but if the resin 3 is applied with a predetermined length along the direction in which the electric wire 2 extends. The electric wire 2 can be fixed to the wall surface 1 with sufficient strength.

  In the embodiment, the same resin 3 is used in the temporary fixing process and the coating process, but different resins may be used in these processes.

  Further, the temporary fixing step may be omitted, and the electric wire 2 may be directly directed to the wall surface 1 so as to be along the wall surface 1 and the resin 3 may be applied thereon.

It is a top view which shows the wiring state which fixed the electric wire to the wall surface by the fixing method of the electric wire which concerns on one Embodiment of this invention. (A)-(c) is explanatory drawing explaining the fixing method of an electric wire. It is a side view showing the gun which set the cartridge. (A) is a perspective view which shows the application tool for temporary fixing, (b) is a perspective view which shows the application tool for temporary fixing of a modification. (A) is a perspective view which shows the front-end | tip part of a cartridge, (b) is a side view which shows the front-end | tip part of the cartridge of a modification. It is a perspective view of an application tool. (A) And (b) is a front view which shows the front-end | tip part of the modification of an application tool.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wall surface 2 Electric wire 3 Resin 4 Gun 5 Cartridge 6, 6 'Temporary fixing application tool 7 Application tool 71 Fixed part 72 Tip part 72a Contact surface 72b Inner side surface 73 Relay part

Claims (9)

  A method for fixing an electric wire, in which one or a plurality of electric wires are arranged along a wall surface, and the electric wire is fixed to the wall surface by applying a resin from the upper surface.   The electric wire fixing method according to claim 1, wherein when applying the resin, the resin is applied with a predetermined length along a direction in which the electric wire extends.   The method for fixing an electric wire according to claim 2, wherein when the resin is applied, the resin is applied so as to form a shape extending in a direction in which the electric wire extends in a predetermined cross-sectional shape.   When the electric wire is placed along the wall surface, a resin is applied to the wall surface, and the electric wire is disposed on the resin to temporarily fix the electric wire on the wall surface with the adhesive force of the resin. Item 4. The electric wire fixing method according to any one of Items 1 to 3.   The method for fixing an electric wire according to any one of claims 1 to 4, wherein the resin is applied using a cartridge in which the resin is sealed and a gun for extruding the resin from the cartridge. An application tool used when applying resin from above the electric wires along the wall surface,
An application tool having a tip portion shaped so as to be able to contact the wall surface in a state of straddling the electric wire, and having a discharge port for discharging resin on an inner surface of the tip portion.   The said front-end | tip part is a coating tool of Claim 6 which has comprised substantially U shape, substantially arc shape, or substantially V shape by the front view.   The said front-end | tip part is a coating tool of Claim 6 or 7 which has a pair of contact surface which can contact the said wall surface across the said electric wire.   The application tool according to any one of claims 6 to 8, further comprising: a fixing portion that is fixed to the cartridge in which the resin is sealed; and a relay portion that connects the fixing portion and the tip portion.

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