CN105846365A - Wire integral clamping mark and wire harness - Google Patents

Abstract

The present invention provides an electric wire integral clamping mark and a wire harness that improve the holding performance of electric wires and improve the accuracy of mounting positions. The wire integrated clamping marker 11 includes a marker main body 21 that is molded integrally with the wire 19 from a resin material at a predetermined position in the extending direction of the wire 19 and surrounds the wire 19 over the entire circumference. The marker main body 21 has: a cylindrical portion 23 formed on the outer peripheral surface of the marker main body 21; 19 on both ends of the extending direction.

Description

Wire integrated clamping mark and wire harness

technical field

The invention relates to an electric wire integrally clamping mark and a wire harness having the electric wire integrally clamping mark.

Background technique

For wire harnesses used in automobiles, etc., by using various fixing tools (clamps, locking tools, protective tubes with locking tools, etc.), one or a plurality of bundled wires are fixed to the frame of the vehicle-mounted equipment, A support portion of a body panel or the like (for example, refer to Patent Documents 1, 2, 3).

As shown in FIG. 8 , for example, a plurality of electric wires 501 are wound with polyvinyl chloride insulating tape 503 and divided into main lines and branch lines, or have connectors and terminals 509 attached to their respective ends to form a wire harness 513 . Since the wire harness 513 is manufactured in advance to a predetermined length, unless it is installed at a predetermined position of the vehicle, connection to the counterpart connector and the counterpart terminal portion may not be possible. Then, in order to more easily perform the attachment work to the predetermined position of the vehicle, the clamping mark 515 may be attached to the wire harness 513 .

As shown in FIG. 9 and FIG. 10 , for example, if the clamping mark 515 is a winding type, it is a flexible sheet-shaped clamping marking material 519 having a plurality of parallel ridges 517 on one side. Protrusions 523 protruding outward in the radial direction of the winding shaft are provided at both ends of each protruding line 517 in the extending direction to form a flange portion 521 . With regard to the clamping mark 515, after wrapping around the outer circumference of the wire harness 513 with the convex strip 517 as the outside, the polyvinyl chloride insulating tape 503 is wound around the outer peripheral surface and fixed at a predetermined position of the wire harness 513 (refer to FIG. 8).

The clip mark 515 thus attached to the wire harness 513 is fixed to a vehicle body panel or the like by a P clip 525 shown in FIG. 11 . The P clip 525 is a clip formed in a substantially R-shape in which the clip main body 527 is formed of a band-shaped metal plate, and a rectangular fixing piece 529 and a fastening piece 533 are respectively connected to both ends of the arc-shaped portion 531. part. A cushioning material such as rubber is provided on the inner peripheral side of the arc portion 531 of the P clip 525 . Bolt through-holes 535 are provided to penetrate through the fastening piece portion 533 and the fixing piece portion 529 .

The wire harness 513 is attached to a predetermined portion of the vehicle by enclosing the outer peripheral surface of the clamping mark 515 by the inner peripheral surface of the arc-shaped portion 531 and fixing the bolts inserted through the bolt through holes 535 to fixing holes such as body panels. Location.

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2006-14569

Patent Document 2: Japanese Patent Laid-Open No. 2011-172412

Patent Document 3: Japanese Patent Laid-Open No. 2012-217295

Contents of the invention

The technical problem to be solved by the invention

However, when the above-mentioned conventional clamping mark 515 surrounds and winds the electric wire 501 , there are cases where the cross-sectional shape perpendicular to the extending direction of the electric wire is an ellipse instead of a circle. In particular, if two or more wrap-around clamping markers 515 are arranged in the width direction, and are attached around the electric wire 501, the cross-sectional shape can be easily formed into an ellipse. As for the clamping mark 515 formed into an elliptical cross-sectional shape in this way, a gap is generated between the inner peripheral surface of the P clip 525 mounted on the body panel and the outer peripheral surface of the clamping mark 515, and when it is fixed to the vehicle, it is held. Uneven force may occur. That is, the clamping mark 515 is displaced in the direction in which the electric wire extends, and there is a possibility that the mounting position accuracy may deteriorate. Furthermore, when there are a plurality of clamping marks 515, there is a possibility that the dimensional accuracy between the clamping marks 515 may also deteriorate.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an electric wire integrally clamping mark with improved electric wire holding performance and improved mounting position accuracy, and a wire harness having the electric wire integrally clamping mark.

Technical means used to solve problems

The above objects related to the present invention are achieved by the following configurations.

(1) An electric wire integrated clamping mark, characterized in that it includes: a marking body that is molded integrally with the electric wire from a resin material at a predetermined position in the extending direction of the electric wire, and surrounds the electric wire throughout the entire circumference , the marking main body has: a cylindrical portion formed on the outer peripheral surface of the marking main body; and a flange portion formed on the marking main body so as to protrude radially outward from the cylindrical portion. , both ends of the extending direction of the electric wire.

According to the electric wire integral clamping mark of the structure of (1) above, the marking main body is integrally molded with a resin material and an electric wire at the predetermined position in the extending direction of an electric wire, and this marking main body surrounds an electric wire over the whole circumference. Accordingly, the electric wire integral clamping mark is attached with high positional accuracy in the extending direction of the electric wire, and no positional displacement occurs. A cylindrical portion is formed on the outer peripheral surface of the marker main body. In the wire integrated clamping mark, the cylindrical part of the marking body does not have an elliptical cross-section like the conventional clamping mark, so when the wire is fixed to the support part, the holding force of the clip member such as the P clip does not occur. uneven. Therefore, the same holding force can be ensured regardless of the mounting direction of the clip member with respect to the cylindrical portion.

(2) The integrated electric wire clamping marker according to the configuration of (1) above, wherein at least a part of the cylindrical portion remains on the outer peripheral surface of the marker main body to form a weight reducing portion.

According to the electric wire integral clamping mark of the structure of said (2), by leaving at least a part of cylindrical part, and forming a lightening part on the outer peripheral surface of a marking main body, the electric wire integral clamping mark ensures the holding force of a clip member, and at the same time The usage amount and the weight of the resin material in the marker main body are reduced by the volume of the weight reducing part.

(3) The electric wire integrated clamping mark according to the configuration of the above (1) or (2), wherein the resin material is a material harder than the buffer material provided on the inner peripheral surface of the clip member, and the clip member is attached In the tag body.

According to the electric wire integrated clamping mark of the structure of the above (3), when the clip member is attached to the main body of the tag, the cushioning material provided on the inner peripheral surface elastically deforms and at the same time closely adheres to the cylindrical part. Therefore, the retention of the clip member Improved performance.

(4) A wire harness characterized by having an electric wire integral clamping mark having the structure described in any one of (1) to (3) above.

According to the wire harness having the configuration of (4) above, when the electric wire is fixed to the supporting part, the holding force of the clip member such as the P clip does not produce unevenness, so the clip member is attached with high positional accuracy in the extending direction of the electric wire, No position shift will occur.

Invention effect

According to the electric wire integral clamping mark and the wire harness according to the present invention, it is possible to improve the holding performance of the electric wire and to improve the accuracy of the mounting position.

The present invention has been briefly described above. Furthermore, details of the present invention will be clarified by reading through the modes for implementing the invention described below (otherwise referred to as "embodiment") with reference to the drawings.

Description of drawings

Fig. 1 is a perspective view showing an electric wire integrally clamping marker according to a first embodiment of the present invention together with electric wires.

FIG. 2 is a perspective view showing a state where a P clip is fixed to the electric wire integral clamping mark shown in FIG. 1 .

Fig. 3 is a cutaway side view of a part of the P clip fixed to the electric wire integral clamping mark shown in Fig. 2 .

Fig. 4 is an overall perspective view of a micro-molding machine for molding the electric wire integrally clamping mark shown in Fig. 1 .

(a) of FIG. 5 is a perspective view which shows the electric wire integral clamping mark which concerns on the 2nd Embodiment of this invention together with an electric wire, (b) is a perspective view which looked at (a) obliquely from below.

(a) of FIG. 6 is a plan view of the electric wire integral clamping mark shown in FIG. 5, (b) is a side view of (a), and (c) is a bottom view of (a).

Fig. 7 is a cutaway side view of a part of the P clip fixed to the electric wire integral clamping mark shown in Fig. 5 .

Fig. 8 is a plan view of a wire harness provided with a conventional clamping mark.

Fig. 9 is an enlarged perspective view of the clamping mark shown in Fig. 8 .

Fig. 10 is a perspective view of the clamping marker shown in Fig. 9 before winding.

Fig. 11 is a perspective view of a P clip.

Symbol Description

11...Integrated clamping marks for electric wires

13...Battery cable (harness)

19...Wires

21... mark the body

23...cylindrical part

31...flange

525…P clip (clip part)

detailed description

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Fig. 1 is a perspective view showing an electric wire integrally clamping marker according to a first embodiment of the present invention together with electric wires.

The integrated electric wire clamping marker 11 of the first embodiment is applicable to various wire harnesses mounted on vehicles. In the following embodiments, an example in which the electric wire integral clamping mark 11 is used for the battery cable 13 as a wire harness will be described. The battery cable 13 has, for example, two electric wires 19 of a small-diameter electric wire 15 and a large-diameter electric wire 17 . The electric wire 19 is a covered electric wire in which a conductor including a twisted cable or a single wire is covered with an insulating sheath. The battery cable 13 is formed by attaching the electric wire integral clamping mark 11 integrally with the electric wire 19 to a predetermined position of the electric wire 19 by molding.

In the electric wire integrated clamping mark 11, the mark main body 21 surrounding the electric wire 19 throughout the entire circumference has: a cylindrical part 23 formed on the outer peripheral surface of the mark main body 21; The flange portion 31 on the end side is the main structure.

The marker main body 21 is integrally molded with the electric wire 19 at a predetermined position in the extending direction of the electric wire 19 from a resin material, and surrounds the electric wire 19 over the entire circumference. In the present first embodiment, the marker main body 21 is shaped in a substantially cylindrical shape.

In the first embodiment, the cylindrical portion 23 serves as the side surface (the outer peripheral surface in the circumferential direction) of the substantially cylindrical marker main body 21 . Therefore, the cross-sectional shape of the cylindrical portion 23 is the same at any position along the axial direction of the marker main body 21 .

In addition, in the first embodiment, the flange portion 31 is formed in a collar shape having a larger outer diameter than the cylindrical portion 23 so as to protrude outward in the radial direction from the cylindrical portion 23 , and is provided. On both end sides of the marking main body 21 in the extending direction of the electric wire 19 . That is, the integrated wire clamping marker 11 of the first embodiment is formed in a bobbin shape having a pair of flange portions 31 at both ends of the marker main body 21 .

In addition, the flange portion of the present invention is not limited to the collar-shaped flange portion 31 that is continuous along the outer peripheral surface of the marker main body 21 , and may be constituted by a plurality of protrusions protruding intermittently along the outer peripheral surface of the marker main body 21 .

Next, a micro-molding machine for integrally molding the electric wire 19 with the electric wire integral clamping mark 11 will be described.

As shown in Figure 4, the micro-forming machine 33 that is used to integrally mold the electric wire integral clamping mark 11 on the electric wire 19 is a forming machine that can be operated by one operator without external power such as a motor, including: , a molding die 35 made of synthetic resin, a mold clamping device not shown, and a low-pressure injection device 37 for injecting molten resin into the molding die 35 under pressure.

The low-pressure injection device 37 has: a heating cylinder 39, which is provided with a heater for heating and melting synthetic resin materials such as polypropylene; a punch 41, which injects the molten resin in the heating cylinder 39 from a nozzle not shown in the figure; an injection cylinder 43, The plunger 41 is advanced; the handle 45 drives the injection cylinder 43;

In addition, the micro-molding machine 33 of this embodiment is capable of molding a maximum amount of resin of about 10 g in one injection molding, and when the molding die 35 is closed, micro-molding can be performed manually using an air cylinder or a connecting rod. machine. Therefore, the low-pressure injection device 37 can also use external power such as a motor and air to drive the injection cylinder 43 . More specifically, as the micromolding machine 33, for example, the well-known "injection molding" disclosed in JP-A-2010-260297, JP-A-2012-30429, and JP-A-2013-103492 can be used. device".

The molding die 35 is a horizontally split die having a lower die 53 and an upper die 55 , and an upper cavity 56 is formed on a die split surface (lower surface) of the upper die 55 facing downward. In addition, a lower cavity 58 having the same shape as the upper cavity 56 is formed on the mold dividing surface (upper surface) of the upward lower mold 53 . Then, by clamping and aligning the lower mold 53 and the upper mold 55 , these lower cavities 58 and the upper cavities 56 are integrated and divided into cavities 60 inside. Then, the molding die 35 is clamped in a state where the electric wires 19 are arranged inside the cavity 60 .

The upper mold 55 has a gate (not shown) that communicates the cavity 60 with the nozzle of the low-pressure injection device 37 .

In the mold closing step, the forming mold 35 is closed after the electric wires 19 are placed in the cavity 60 . Thus, a space filled with a resin material is defined between the cavity 60 and the electric wire 19 . The capacity of the forming die 35 to fill the space after mold closing is several cm ³ . In addition, in this embodiment, the case where the molding die 35 is a horizontally split die has been described, but a vertically split die may also be used.

In the injection process following the mold clamping process, the melted synthetic resin is injected at low pressure from the gate. The molten resin injected into the cavity 60 is filled into the filling space. In this embodiment, the filling space is formed in the shape of a bobbin. The resin material that has been filled into the filling space is cured, so that the wire integral holding marker 11 is molded integrally with the wire 19 at a predetermined position of the wire 19 .

The electric wire integral clamping mark 11 integrally molded on the electric wire 19 is mounted with a fixing strength that does not move relative to the electric wire 19 within a predetermined range of electric wire holding strength. In other words, the electric wire integral clamping mark 11 can move along the electric wire 19 by applying a force equal to or greater than a predetermined electric wire holding strength. At this time, after being fixed to a vehicle body panel or the like by a P clip (clip member) 57 attached to the cylindrical portion 23, movement of the electric wire integral clamping mark 11 relative to the electric wire 19 is restricted (see FIG. 2 ).

As the P clip 525, as shown in FIG. 2, the same clip as in the prior art is used (see FIG. 11). That is, the clip main body 527 is a clip member formed in a substantially R-shape, in which a strip-shaped metal plate is formed, and a rectangular fixing piece 529 and a fastening piece 533 are respectively connected to both ends of an arc-shaped portion 531 . The fastening piece portion 533 and the fixing piece portion 529 are provided with bolt through holes 535 through which the mounting bolts 70 are inserted.

In addition, a cushion material 61 made of rubber is provided on the inner peripheral side of the arc portion 531 of the P clip 525 . The buffer material 61 has a substantially C-shaped cross-sectional shape along the axial direction of the marker main body 21 and covers the inner peripheral surface of the arc-shaped portion 531 .

The electric wire integral clamping mark 11 of the first embodiment is formed of a resin material (such as polypropylene) harder than the rubber of the buffer material 61 . As a result, when the P clip 525 is fastened to the cylindrical portion 23 of the marker body 21 as shown in FIG. 3 , the cushioning material 61 is elastically deformed and closely adheres to the cylindrical portion 23 without a gap.

In the P clip 525, as shown in FIG. 2, the fastening piece part 533 and the fixing piece part 529 are fastened by the mounting bolt (fastening tool) 70 passing through the bolt through hole 535 of both, thereby enclosing the circle of the electric wire integral clamping mark 11. The cylindrical part 23 is fastened. At this time, the mounting bolts 70 pass through the clip mounting holes provided in the manner of penetrating the body panels and brackets, and fasten the body panels and the like together with the P clip 525 . Based on this, the battery cable 13 is fixed at a predetermined position of the vehicle body panel or the like by the P clip 525 via the wire integral clamping mark 11 .

Next, the operation of the electric wire integral clamping mark 11 of the above-mentioned first embodiment will be described.

In the wire integrally clamping marker 11 of the first embodiment, the marker main body 21 surrounding the wire 19 is molded integrally with the wire 19 from a resin material at a predetermined position in the extending direction of the wire 19 . Thereby, the electric wire integral clamping mark 11 is attached with high positional accuracy in the extending direction of the electric wire 19, and a positional shift does not generate|occur|produce.

In addition, the electric wire 19 of the battery cable 13 may be one or plural. In addition, the electric wire integral clamping mark 11 may be provided in multiple places in the direction in which the electric wire 19 extends.

A cylindrical portion 23 is formed on the outer peripheral surface of the marker main body 21 . The cross-sectional shape of the cylindrical part 23 is circular. As shown in FIG. 1 , when the battery cable 13 includes two electric wires 19 , the conventional clip mark 515 (see FIG. 9 ) has an elliptical cross-sectional shape perpendicular to the direction in which the electric wires 19 extend. On the other hand, the electric wire integral clamping mark 11 of the present first embodiment is molded in such a manner that the two electric wires 19 are surrounded by a resin material with the molding die 35, and the main body 21 of the mark is formed. Shaped cylindrical part 23.

As a result, for the electric wire integrated clamping mark 11, the cylindrical portion 23 of the marking main body 21 is not formed into an oval cross section like the conventional clamping mark 515, so when the electric wire 19 is fixed to the vehicle body panel , The holding force of the P clip 525 does not produce unevenness. Therefore, the same holding force can be ensured regardless of the mounting direction of the P clip 525 with respect to the cylindrical portion 23 .

In addition, since the marker main body 21 is molded integrally with the electric wire 19 over the entire circumference of the electric wire 19, sand and the like do not enter between the electric wire 19 and the marker main body 21 during driving. Therefore, there is no fear that the coating of the electric wire 19 will be worn away by sand or the like that enters between the tag body 21 and the wire 19 during running.

On the other hand, in the conventional clamping marker 515 shown in FIG. 9 , since the sheet-shaped clamping marker material 519 is wound around the outer peripheral surface of the electric wire 501 , a gap may be generated between the clamping marker and the electric wire 501 . This gap occurs significantly especially when surrounding two or more electric wires 501 arranged in the width direction. That is, the V grooves at the upper and lower central portions of the two electric wires 501 having a “∞” cross-section form a gap with the inner peripheral surface of the P clip 525 . As a result, the electric wire 501 may be covered with sand or the like entering the gap between the clamping mark 515 and worn during driving.

Moreover, in the electric wire integrated clamping mark 11 of this first embodiment, the relative movement of the mark main body 21 and the P clip 525 in the axial direction is restricted by the flange portion 31, so that the mounting position accuracy of the P clip 525 is further improved, In addition, the marker body 21 does not come off from the P clip 525 .

Next, a second embodiment of the wire integrally clamping marker according to the present invention will be described.

As shown in FIGS. 5 to 7 , in the electric wire integral clamping marker 63 of the second embodiment, the weight reducing portions 67 and 71 are formed on the outer peripheral surface of the marker main body 65 . These weight reducing parts 67 and 71 can be molded using a molding die having a weight reducing part forming part different from the molding die 35 described above.

A part of the molding surface in the circumferential direction of the outer peripheral surface of the weight reducing portion 67 sandwiched between the pair of cylindrical portions 23A is formed so as to be disposed radially inward of the cylindrical portions 23A. This weight reduction part 67 is formed by making the forming surface sandwiched by the pair of cylindrical parts 23A into a flat surface 69 as shown in FIG. 5( a ). Moreover, as shown in FIG.5(b), the weight reduction part 71 is formed by making the molding surface sandwiched between a pair of cylindrical part 23A into the concave part 73. As shown in FIG. 6 , the electric wire integrated clamping mark 63 according to the second embodiment is formed by providing both a light-weight portion 67 having a flat surface 69 and a light-weight portion 71 having a concave portion 73 in the radial direction of the main body 65 of the mark. Wires on both sides integrally hold markers.

Next, the operation of the electric wire integral clamping mark 63 of the second embodiment will be described.

As shown in FIG. 7 , in the electric wire integral clamping mark 63 of the present second embodiment, a weight-reducing structure is provided between a pair of cylindrical parts 23A that contact the inner peripheral surface (cushion material 61 ) of the P clip 525 . part 67 and weight reducing part 71. The molding surfaces of the weight reducing portion 67 and the weight reducing portion 71 are arranged on the inner side in the radial direction than the cylindrical portion 23A. That is, a locking gap 75 is formed between the inner peripheral surface of the P clip 525 and the molding surfaces of the weight reducing portion 67 and the weight reducing portion 71 .

For the electric wire integrally holding marker 63 , the usage amount and weight of the resin material are reduced by the volume of the locking gap 75 . As for the marker body 65 , if at least a part of the cylindrical portion 23A having a circular cross-sectional shape can be retained to ensure a predetermined holding force with the P clip 525 , more contact area with the P clip 525 can be reduced. In this way, the weight reduction portion 67 and the weight reduction portion 71 are provided on the outer peripheral surface of the marker main body 65 within the range of the contact area that can be reduced.

In addition, with regard to the electric wire integral clamping mark 63 of the second embodiment, although a part of the forming surface in the circumferential direction of the outer peripheral surface sandwiched by the pair of cylindrical parts 23A disposed on both end sides of the marking main body 65 is provided with a reducing The weight portion 67 and the weight reduction portion 71, but the weight reduction portion of the present invention is not limited thereto. For example, weight reducing portions may be respectively provided on a part of the molding surface in the circumferential direction of the outer peripheral surface at both ends of the cylindrical portion disposed at the center of the marker main body. That is, the electric wire integral clamping mark of the present invention retains a circular cylindrical portion in at least a part of the main body of the marking. The outer peripheral surface is appropriately provided with a weight reducing portion.

Therefore, according to the electric wire integrally clamping marks 11 and 63 of the above-described embodiments, the holding performance of the electric wire 19 can be improved, and the mounting position accuracy can be improved.

In addition, according to the battery cable 13 of each of the above-mentioned embodiments, since the holding force of the P clip 525 does not produce unevenness when the electric wire 19 is fixed to the vehicle body panel, the P clip 525 is attached to the electric wire with high positional accuracy. 19 in the direction of extension, no positional shift will occur.

Here, the characteristics of the embodiments of the above-mentioned electric wire integrally clamping marker according to the present invention are briefly summarized as follows.

[1] An electric wire integrated clamping mark (11), characterized in that it includes: at a predetermined position in the extending direction of the electric wire (19), it is molded integrally with the electric wire (19) by a resin material, and spreads over the entire a marker body (21) surrounding said wire (19),

The marking body (21) has:

a cylindrical portion (23) formed on the outer peripheral surface of the marking main body (21); and

Flange portions (31) are formed on both end sides of the marker main body (21) in the extending direction of the electric wire (19) so as to protrude radially outward from the cylindrical portion (23). .

[2] An integrated wire clamping mark (63) characterized in that it is the wire integrally clamping mark according to the configuration of the above [1], and

At least a part of the cylindrical portion (23A) is left on the outer peripheral surface of the marker main body (65) to form a lightening portion (67, 71).

[3] The electric wire integral clamping mark (11, 63) according to the configuration of [1] or [2] above, characterized in that,

The resin material is harder than the buffer material (61) provided on the inner peripheral surface of a clip member (P clip 525) attached to the marker main body (21, 65).

[4] A wire harness (battery cable 13) characterized by having the electric wire integral clamping mark (11, 63) of any one of the above-mentioned [1] to [3].

It should be noted that the present invention is not limited to the above-described embodiments, and appropriate modifications, improvements, and the like can be made. In addition, the material, shape, size, number, arrangement location, etc. of each component in the above-mentioned embodiment may be arbitrary as long as the present invention can be realized, and there is no limitation thereto.

Claims (4)

1. An electric wire integrated clamping mark, characterized in that, It includes: a marking body integrally molded with the electric wire by a resin material at a predetermined position in the extending direction of the electric wire, and surrounding the electric wire over the entire circumference, The markup body has: a cylindrical portion formed on an outer peripheral surface of the marker main body; and Flange portions are formed on both end sides of the marker main body in the direction in which the electric wires extend so as to protrude outward in the radial direction from the cylindrical portion. 2. The electric wire integrated clamping mark according to claim 1, characterized in that, At least a part of the cylindrical portion remains on the outer peripheral surface of the marker main body to form a weight reducing portion. 3. The electric wire integrated clamping mark according to claim 1, characterized in that, The resin material is harder than the buffer material provided on the inner peripheral surface of the clip member attached to the marker main body. 4. A wire harness, characterized in that it has the electric wire integral clamping mark according to any one of claims 1 to 3.