JP2009033915A - Electric wire retaining plate, and electric wire wiring structure using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To wire and fix a second electric wire such as a power wire along the first power wire such as a coaxial wire with excellent workability and without damage. <P>SOLUTION: In this electric wire retaining plate 1, electric wire crimp pieces 3, 4 which crimp the first electric wire 11 to a plate part 2 is provided, at least a pair of linear guide pieces 5 which support the second electric wire 12 along the first electric wire is vertically provided to the plate part, a hole part 9 in which an electric wire press tool 16 of a crimp fixture 13 is inserted is provided at the plate part 2 and the electric wire guide pieces 5 are cut and raised from the hole part. The first electric wire 11 crimped by the electric wire crimp pieces and the second electric wire 12 supported by the electric wire guide pieces are fixed by a fixing member 18. The two first electric wires 11 are crimped by the electric wire crimp pieces on the both sides of the plate part 2, and the second electric wire 12 is wired between the two of the first electric wires. The first electric wire is a coaxial wire 11, and the second electric wire is a power wire 12, and the coaxial wire is crimped by a shielded crimp piece 3 and a braid crimp piece 4 which are the electric wire crimp pieces. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electric wire holding plate for fixing a coaxial line and a power supply line that are routed from an antenna of an automobile to an instrument panel, for example, and an electric wire routing structure using the same.

  FIG. 4 shows an embodiment of a conventional wire holding plate (see Patent Document 1).

  This electric wire holding plate 21 is a ground plate for grounding and fixing the coaxial cable 11 as an antenna cable connected to an audio device of an automobile to the vehicle body, and punching and bending a conductive metal plate, The wire connection part 22 and the fixing part 7 to the vehicle body on the ground side are integrally formed.

  The wire connecting portion 22 includes a pair of coated crimping pieces 3 formed on both sides of the plate portion 23 and a pair of braided crimping pieces 4 formed at the center of the plate portion 23. A pair of front and rear rectangular holes 24 are provided in the plate portion 23 between the crimping pieces 3 and 4, and the leg portion 17 of the crimping jig 13 shown in FIG. 5 enters the hole 24. ing.

  The fixing portion 7 of the ground plate 21 includes a fixing screw insertion hole 26 provided at the center of the plate portion 25 and a hook portion 27 formed at the tip of the plate portion 25. In FIG. 4, reference numeral 28 denotes a hole formed by cutting and raising one braided crimping piece 4.

  As shown in FIG. 5, the two coaxial wires 11 are arranged and connected in parallel to the wire connection portion 22 of the earth plate 21. The coated crimping piece 3 crimps and fixes the insulating sheath 11a of the coaxial wire 11, and the braided crimping piece 4 crimps and connects the conductive braid 11b exposed by peeling off the insulating sheath 11a of the coaxial wire 11.

  The crimping pieces 3 and 4 are caulked using the upper and lower crimping jigs 13 (the lower jig is not shown). The upper crimping jig 13 is composed of a pair of coated crimping tools 14 on both sides, a central braided crimping tool 15, and a pair of electric wire pushing tools 16 disposed between the two crimping tools 14 and 15. While the leg 17 of the wire pusher 16 enters the hole 24 of the ground plate 21, the tapered surface 17a outside the tip of the leg 17 pushes the coaxial wire 11 deeply into the inner side of both the crimping pieces 3, 4. Each crimping tool 14, 15 crimps each crimping piece 3, 4. The leg portion 15 a of the braided crimping tool 15 enters the hole 28 on the fixed portion 7 side of the ground plate 21.

  FIG. 6 shows another embodiment of a ground plate as an electric wire holding plate described in Patent Document 1 as a conventional example.

The ground plate 31 has a cover crimping piece 33 and a braided crimping piece 34 on one side of the plate portion 32, and has a hole 35 for fixing to the ground side in the center of the plate portion 32. The single coaxial wire 11 is connected and fixed by the crimping pieces 33 and 34. As shown in FIGS. 4 and 6, the shape of the ground plates 21 and 31 and the number of the coaxial wires 11 are appropriately set as necessary.
Japanese Patent Laying-Open No. 2006-238576 (FIGS. 1, 4 and 7)

  For example, when the power line 12 for the amplifier is routed in parallel between the pair of coaxial lines 11 using the ground plate 21 of FIG. 4 as shown in FIG. The cable is routed along the long plate portion 23, and the power supply line 12 and each coaxial line 11 are wound around the adhesive tape 18 and fixed at two places outside the wire connection portion 22.

  One coaxial line 11 is a radio AM and FM main circuit, and the other coaxial line 11 is an FM sub-circuit. As shown in FIG. 8, two coaxial wires 11 are routed from the antenna 36 through the amplifier 37 to the instrument panel (instrument panel) 38, and one power line 12 is routed between the amplifier 37 and the instrument panel 38. Is done. The earth plate 21 is installed between the amplifier 37 and the instrument panel 38. That is, in the general antenna cable circuit, the signal received by the antenna 36 is amplified by the amplifier 37 and transmitted to the instrument panel 38. Therefore, the power source for operating the amplifier 37 is basically the instrument panel 38 side. Therefore, in the circuit between the instrument panel 38 and the amplifier 37 where the earth plate 21 is installed, the coaxial line 11 and the power supply line 12 are always set.

  However, in the wire routing structure of FIG. 7, since the power wire 12 which is a general twisted wire has a smaller diameter than the coaxial wire 11, the power wire 12 is one of the coaxial wires 11 as shown by an arrow during the tape winding operation. When the power supply line 12 comes into strong contact with the crimping pieces 3 and 4 of the ground plate 21, the insulation coating 12a of the power supply line 12 is pressed against the crimping piece. There was concern that it could rub against the edges of 3 and 4 and cause damage.

  This is because, for example, when a power supply line or a signal line is used as the first electric wire instead of the coaxial line 11 and a signal line or the like is used as the second electric wire instead of the power supply line 12, Instead, it can occur in the same manner when the one that only fixes the first and second electric wires without grounding is used as the electric wire holding plate.

  In view of the above points, the present invention provides an electric wire holding plate capable of wiring and fixing a second electric wire such as a power supply line along the first electric wire such as a coaxial line with good workability and without being damaged. It aims at providing the used electric wire wiring structure.

  In order to achieve the above object, an electric wire holding plate according to claim 1 of the present invention is provided with an electric wire crimping piece for crimping a first electric wire to a plate portion, and a second electric wire along the first electric wire. At least a pair of opposing wire guide pieces that support the wire, and a hole portion for inserting a wire pushing tool of a crimping jig with respect to the wire crimping piece is provided in the plate portion. The wire guide piece is formed by cutting and raising.

  With the above configuration, the first electric wire is crimped to the electric wire crimping piece, and the second electric wire is inserted between at least a pair of opposing wire guide pieces and supported (held) along the first electric wire. The second electric wire is prevented from moving in the radial direction (displacement) in the direction of the first electric wire by the electric wire guide piece. The first electric wire may be one or two, and in the case of two, the electric wire crimping pieces are arranged on both sides of the plate portion, and the electric wire guide piece is arranged between the two first electric wires. When a coaxial wire is used as the first electric wire, a coated crimping piece and a braided crimping piece are provided as a wire crimping piece, a coaxial wire braid is crimped and connected to the braided crimping piece, and the electric wire holding plate functions as an earth plate. . A power line is mentioned as a 2nd electric wire. It is preferable that the wire guide pieces are arranged in pairs in the longitudinal direction of the wire (two pairs in total) in order to stably support the second wire without shaking. The second electric wire is permanently fixed to the first electric wire by a fixing member such as a tape.

  Also, when crimping the first electric wire to the wire crimping piece with the crimping jig, the wire pushing tool of the crimping jig enters the hole and pushes the first electric wire into the back side of the wire crimping piece. A crimping jig crimps and crimps the wire crimping piece to the first wire. The wire guide piece is disposed at the end of the hole portion that is far from the wire crimping piece.

  An electric wire routing structure using the electric wire holding plate according to claim 2 is an electric wire routing structure using the electric wire holding plate according to claim 1, wherein the first electric wire crimped by the electric wire crimping piece and The second electric wire supported by the electric wire guide piece is fixed to each other by a fixing member.

  With the above configuration, the first electric wire is fixed along the plate portion with the electric wire crimping piece, and the second electric wire is held along the plate portion with the electric wire guide piece, and the second electric wire is fixed with a fixing member such as a tape or a band. Can be fixed to the first electric wire with good workability. When there is one first wire, the second wire is wired and fixed in parallel with the first wire, and when there are two first wires, the second wire is two first wires. It is wired and fixed in parallel between the wires. The second electric wire is prevented from moving in the radial direction by the electric wire guide piece, and is prevented from moving in the longitudinal direction by the fixing member.

  The wire routing structure using the wire holding plate according to claim 3 is the wire routing structure using the wire holding plate according to claim 2, wherein the two first electric wires are respectively disposed on both sides of the plate portion. The second electric wire is routed between the two first electric wires by being crimped by the electric wire crimping piece.

  With the above configuration, the second electric wire is held by the electric wire guide piece between the two first electric wires, and in that state, with a fixing member such as tape winding, one of the two first electric wires is The second electric wire is stably fixed. Even when the outer diameter of the second electric wire is smaller than the outer diameter of the first electric wire, the inner width in the thickness direction between the fixing members such as tape winding is the same as the outer diameter of the first electric wire at the worst. Even if the second electric wire is about to jump out in the rising direction of the electric wire guide piece due to vibration or the like, the second electric wire comes into contact with a fixing member such as a tape and the radial deviation of the second electric wire from the electric wire guide piece is prevented.

  The electric wire routing structure using the electric wire holding plate according to claim 4 is the electric wire routing structure using the electric wire holding plate according to claim 2 or 3, wherein the first electric wire is a coaxial wire, Are crimped by a coated crimping piece and a braided crimping piece, which are the wire crimping pieces, and the second electric wire is a power line.

  With the above configuration, the insulation sheath of each coaxial line is crimped and fixed with the coated crimping piece, and the exposed braid of each coaxial line is crimped and connected with the braided crimping piece, and passes through the plate part to the outside (conductive mounting side) Connected to ground.

  According to the first aspect of the present invention, the second electric wire is moved toward the first electric wire by temporarily holding the second electric wire with the electric wire guide piece along the first electric wire on the plate portion. The second electric wire can be fixed to the first electric wire with tape wrapping with good workability, and the interference between the electric wire crimping piece and the second electric wire is prevented, and the second electric wire is damaged. Is prevented, and the reliability of power feeding and energization by the second electric wire is improved. Further, since the wire guide piece is formed by effectively utilizing the plate material generated when the hole for inserting the wire pushing tool is punched out, the manufacturing cost can be reduced and the yield of the material can be secured well.

  According to invention of Claim 2, a tape, a band, etc. in the state which fixed the 1st electric wire along the board part with the electric wire crimping piece, and hold | maintained the 2nd electric wire along the board part with the electric wire guide piece. With this fixing member, the second electric wire can be fixed to the first electric wire with good workability.

  According to invention of Claim 3, even if a 2nd electric wire is a diameter smaller than a 1st electric wire, a 2nd electric wire is an electric wire radial direction (2) by a fixing member between two 1st electric wires. Since the movement of the electric wire guide piece in the rising direction) is prevented, the second electric wire is reliably held by the vibration of the vehicle or the like.

  According to the fourth aspect of the present invention, for example, the coaxial cable routed from the antenna of the automobile to the instrument panel via the amplifier is grounded to the vehicle body side by the electric wire holding plate, and the power line wired from the amplifier to the instrument panel is coaxial. It can be fixed stably to the line, and the reliability of power supply to the amplifier by the power line is improved.

  FIG. 1 shows an embodiment of an electric wire holding plate according to the present invention.

  This electric wire holding plate 1 is made of a conductive metal plate as a material, and a pair of front and rear coated crimping pieces (electric wire crimping pieces) 3 are bent symmetrically on both sides of the plate portion 2, and between each pair of coated crimping pieces 3. A pair of braided crimping pieces (wire crimping pieces) 4 are symmetrically bent at the center of the plate portion 2 in the longitudinal direction, and a pair of front and rear wire guide pieces (wire holding pieces) 5 are symmetrically arranged at the center of the plate portion 2 in the width direction. It is the earth plate which started up and formed, and comprised the electric wire wiring part 6 (part corresponding to the electric wire connection part of the prior art example of FIG. 4).

  The covering pressure-bonding piece 3 and the braided pressure-bonding piece 4 are the same as the conventional example of FIG. Each of the crimping pieces 3 and 4 is bent in an approximately U-shape or J-shape from both ends of the plate portion 2 in an initial form (form before crimping), and extends in an inclined manner so as to face the upper portion of the plate portion 2.

  The earth plate 1 of this example omits the fixing part 7 and its hole 28 (FIG. 4) of the conventional example of FIG. A screw (not shown) having a head can be inserted and fixed to a conductive mounting side such as a vehicle body (the hole 8 is not centered but eccentric to the left and right to avoid the power line 12 (FIG. 2)). May be arranged). It is of course possible to integrally form a fixing portion 7 similar to the conventional example of FIG. 4 on one side of the plate portion 2 as indicated by a chain line in FIG.

  Each of the pair of wire guide pieces 5 is raised from each rectangular hole 9 in the plate portion 2 in parallel and vertically inwardly (the electric wire is punched out from the plate portion 2 with a press not shown). Each wire guide piece 5 is located at the inner end of the hole 9, and the hole 9 is located outside the wire guide piece 5. As with the conventional example of FIG. 5, the hole 9 is inserted into the leg 17 of the wire pushing tool 16 of the wire crimping jig 13 (FIG. 5) from above, and the coaxial line (first wire of FIG. 2) 11 is inserted. Is pushed deeply into the inside of the coated crimping piece 3 and the braided crimping piece 4.

  The hole 9 is formed in the plate portion 2 between the coated crimping piece 3 and the braided crimping piece 4, and the electric wire guide piece 5 is similarly formed upright from the plate portion 2 between the coated crimping piece 3 and the braided crimping piece 4. ing. The length (rising height) of the wire guide piece 5 does not have to be the same as the length of the hole 9, and the wire guide piece 5 is cut short simultaneously with the punching of the hole 9. It is also possible to start up.

  The pair of left and right wire guide pieces 5 are connected by a narrow plate wall (a part of the plate portion) 10 between the pair of left and right holes 9, and the pair of left and right wire guide pieces 5 and the plate wall 10 have a U-shaped wire. It constitutes a guide part. A tapered surface 5a for smoothly inserting the power supply line (second electric wire) 12 is formed on the inner end of each wire guide piece 5. It is preferable that the crossing portion of each wire guide piece 5 with the plate wall 10, that is, the base portion 5 b of the wire guide piece 5 is curved in an arc along the outer peripheral surface of the power supply line 12.

  The distance between the inner surfaces 5c of the pair of left and right electric wire guide pieces 5 is preferably set to be equal to or slightly larger than the outer diameter of the power supply line 12. This is because if the power supply line 12 is strongly pressed between the pair of left and right electric wire guide pieces 5, the insulating coating 12 a of the power supply line 12 may be damaged at the inner edge of the electric wire guide piece 5.

  When the distance between the inner surfaces 5c of the wire guide pieces 5 is equal to the outer diameter of the power supply wire 12, the power supply wire 12 can be lightly pushed between the pair of wire guide pieces 5 and held without being damaged. The interval between the pair of left and right electric wire guide pieces 5 can be temporarily held so as not to move to the coaxial line 11 side (left and right direction) until the power supply line 12 is permanently fixed to the coaxial line 11 by tape winding or the like. Any size is acceptable. Moreover, the rising height of each electric wire guide piece 5 from the upper surface 2a (FIG. 2) of the plate part 2 should just be comparable with the outer diameter of the power wire 12, as shown in FIG. In the present specification, the directions “front and rear” and “left and right” are for convenience of explanation, and the longitudinal direction of the electric wire is front and rear.

  FIG. 2 shows a state before caulking in which the coaxial line 11 and the power supply line 12 are set on the ground plate 1.

  As shown in FIG. 2, the braided crimping piece 4 is crimped to the braid 11 b having a smaller diameter than the insulating sheath (coating) 11 a of the coaxial line 11, and therefore is inclined at a smaller angle with respect to the plate part 2 than the coated crimping piece 3. . The width of the braided crimping piece 4 is wider than that of the coated crimping piece 3 as shown in FIG. 1, and the flexible braid 11b is brought into contact with a wide area.

  In the state of FIG. 2 or in an unset state in which the central power supply line 12 is omitted from the state of FIG. 2, the crimping jig 13 of FIG. The wire crimping tool (the coated crimping tool 14 and the braided crimping tool 15) crimps the crimping pieces 3 and 4 in a curved shape to fix and connect them. As shown in FIG. 1, each pair of wire guide pieces 5 is located between the coated crimping piece 3 and the braided crimping piece 4 (located between the coated crimping tool 14 and the braided crimping tool 15). There is no worry of any interference.

  If there is concern about interference between the central power line 12 and the central lower portion 14a of the covering crimping tool 14 of FIG. 5, after the crimping of the coaxial line 11 is completed, the power line 12 is placed between each pair of wire guide pieces 5. Insert and set. In FIG. 2, reference numeral 11 d denotes a core wire, 11 c denotes an insulating endothelium, 11 b denotes a braid, and 11 a denotes an insulating outer skin.

  FIG. 3 shows a state in which the coaxial wires 11 and the power supply wires 12 are routed to the ground plate (electric wire holding plate) 1 and wound and fixed with a synthetic resin adhesive tape 18 (fixing member), that is, the electric wire holding plate is used. 1 shows an embodiment of a conventional cable routing structure.

  The power line 12 is held by a pair of front and rear electric wire guide pieces 5 to prevent radial displacement in the direction of the coaxial line 11. Therefore, the operator can efficiently perform the tape winding operation without worrying about the positional deviation of the power supply line 12, and the left and right coaxial lines 11 and the central power supply line 12 can be securely fixed by tape winding. . Since the power line 12 is not displaced, there is no concern that the power line 12 interferes with the edges of the crimping pieces 3 and 4 and the insulating coating 12a of the power line 12 is damaged.

  As shown in FIG. 3, the tape winding is preferably performed at a position slightly shifted back and forth with respect to the front and back coated crimping pieces 3. Since the power line 12 has a smaller diameter than the coaxial line 11, the upper and lower surfaces 18 a of the tape 18 are not flat and the center is slightly depressed (at the position of the power line 12). Even when the adhesive surface is separated from the outer surface of the power line 12 in the vertical direction, the power line 12 is held by each pair of wire guide pieces 5 and the vertical movement of the power line 12 is restricted by the tape 18. (The difference between the outer diameter of the coaxial wire 11 and the height of the wire guide piece 5 is set smaller than the outer diameter of the power supply wire 12). Held in position. It is also possible to firmly fix the electric wires 11 and 12 by winding the tape 18 in the shape of a figure 8 along the outer peripheral surfaces of the electric wires 11 and 12.

  As shown in FIG. 3, in the state of an earth plate assembly 20 in which the electric wires 11 and 12 are routed to the earth plate 1 and the electric wires are fixed with a tape, the earth plate 1 is attached to the side of the conductive vehicle body or the like ( (Not shown). The fixing of the ground plate 1 is preferably in a position where the screw can be screwed without causing the driver tool to interfere with the power supply line 12 in the fixing portion 7 of the conventional example of FIG. 4 or the hole 8 of the ground plate 1 of FIG. ).

  The core wire 11d of one coaxial line 11 is connected to one antenna circuit (not shown) as an AM and FM main circuit, and the core wire 11d of the other coaxial line 11 is connected to the other antenna circuit (not shown) as an FM sub circuit. The core wire (general stranded wire) 12b of the power supply line 12 is connected to a circuit (not shown) from the battery as the power supply line of the amplifier. The connection with each of these antenna circuits and the circuit from the battery is preferably made as a wire harness before assembling the electric wires 11 and 12 to the ground plate 1.

  In the above embodiment, both wires 11 and 12 are bound and fixed to each other by tape winding, but in FIG. 3, both wires 11 and 12 are fixed by a binding band or a resin wire having a circular cross section instead of the tape 18. It is also possible to do. These tapes 18 and bands are collectively referred to as fixing members or fixing means.

  In the above embodiment, the ground plate 1 for grounding the braid 11b of the coaxial line 11 is used as the electric wire holding plate. For example, the coaxial line 11 or a signal line or the like instead of the coaxial line 11 (see FIG. It is also possible to use an electric wire holding plate for the purpose of performing only crimping and fixing without first connecting the first electric wire to the ground. In this case as well, it goes without saying that the power line 12 or a signal line (not shown) instead of the power line 12 is held by the electric wire guide piece 5 at the center of the plate portion 2 as the second electric wire.

  Moreover, in the said embodiment, although each pair of crimping pieces 3 and 4 was formed in the right-and-left both sides of the board part 2, each crimping piece 3 is formed only in the one side of the board part 2 like the conventional form of FIG. , 4 can be formed, and one coaxial wire 11 can be crimped instead of two. In this case, the power supply line 12 along the coaxial line 11 is similarly held by the pair of electric wire guide pieces 5, and at least one electric wire guide piece 5 on the coaxial line 11 side is adjacent to the leg 17 of the electric wire pushing tool 16. A hole 9 is provided.

  Moreover, in the said embodiment, although the electric wire guide piece 5 each arrange | positioned front and rear (two pairs in total) along the electric wire longitudinal direction, for example, only one pair of electric wire guide pieces 5 is arranged in the center of the board part 2, or front and rear It is also possible to arrange a total of three pairs in the direction. When a pair is arranged in the center, it is necessary to set the dimensions so that the front and rear portions of the power line 12 are inclined with the pair of wire guide pieces 5 as fulcrums and do not interfere with the coated crimping pieces 3 at the front and rear ends of the ground plate 1. It is.

  In addition to the electric wire holding plate and the electric wire arrangement structure using the electric wire holding plate, the configuration of the present invention is also effective as an electric wire arrangement method using the electric wire holding plate 1 and the like.

It is a perspective view which shows one Embodiment of the electric wire holding plate which concerns on this invention. It is a side view which shows the state which similarly set the coaxial line and the power wire to the electric wire holding plate. It is a perspective view which shows one Embodiment of the electric wire wiring structure using an electric wire holding plate. It is a perspective view which shows one form of the conventional electric wire holding plate. It is a perspective view which shows the state which connects and fixes a coaxial line to the conventional electric wire holding plate with a crimping jig. It is a perspective view which shows the other form of the conventional electric wire holding plate. It is a perspective view which shows one form of the electric wire wiring structure using the conventional electric wire holding plate of FIG. It is explanatory drawing which shows an example of the wiring form of the coaxial line and power supply line to the conventional vehicle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric wire holding plate 2 Board part 3 Covering crimping piece (wire crimping piece)
4 Braided crimping piece (wire crimping piece)
5 Wire guide piece 9 Hole 11 Coaxial wire (first wire)
12 Power line (second electric wire)
13 Crimping jig 16 Electric wire pushing tool 18 Tape (fixing member)

Claims (4)

  An electric wire crimping piece for crimping the first electric wire is provided on the plate portion, and at least a pair of opposed electric wire guide pieces supporting the second electric wire along the first electric wire are erected on the plate portion, A wire holding plate, wherein a hole for inserting a wire pushing tool of a crimping jig with respect to a wire crimping piece is provided in the plate portion, and the wire guide piece is cut and raised from the hole.   A wire routing structure using the wire holding plate according to claim 1, wherein the first wire crimped by the wire crimping piece and the second wire supported by the wire guide piece are fixed. An electric wire routing structure using an electric wire holding plate which is fixed to each other by members.   Two said 1st electric wires are crimped | bonded by the said wire crimping piece in the both sides of the said board part, respectively, The said 2nd electric wire was wired between these two 1st electric wires, It is characterized by the above-mentioned. An electric wire routing structure using the electric wire holding plate according to claim 2.   The first electric wire is a coaxial wire, the coaxial wire is crimped by a coated crimping piece and a braided crimping piece which are the wire crimping pieces, and the second electric wire is a power line. An electric wire routing structure using the electric wire holding plate according to 2 or 3.

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