JP2015097439A - Wire harness and electric wire fixing component - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inhibit an attachment plate of an electric wire fixing component from twisting relative to an electric wire bundle in a more secure manner.SOLUTION: A wire harness 10 includes: electric wires 14 including multiple electric wires 14; an electric wire fixing component 30 including a long plate-like attachment plate 32 and a vehicle body fixing part which may be fixed to a vehicle body; and a binding member 50 which binds an electric wire bundle 12 to the attachment plate 32. Multiple protruding parts 34 are formed on one main surface of the attachment plate 32. At least two of the multiple protruding parts 34 penetrate into the electric wire bundle 12 in a state where the electric wire bundle 12 and the attachment plate 32 are bound by the binding member 50.

Description

  The present invention relates to a technique for fixing a wire harness to a vehicle or the like.

  As an electric wire fixing component, there is one in which a long and narrow mounting plate and a clamp portion fixed to a vehicle body are integrally formed. The electric wire fixing component is attached to the electric wire bundle by winding an adhesive tape or the like around the electric wire bundle and the attaching plate in a state where the attaching plate is disposed along the electric wire bundle.

  When fixing a wire harness to a vehicle body or the like using the above-described wire fixing component, it is necessary to suppress twisting of the mounting plate with respect to the wire bundle in order to maintain the wire harness along a certain path with high accuracy.

  In particular, when the wire bundle has a large diameter, depending on the adhesive tape wound around the wire bundle and the mounting plate, it is difficult to maintain the mounting plate at a fixed position in the circumferential direction of the wire bundle. The mounting plate is easily twisted.

  Here, Patent Document 1 discloses an electric wire fixture having a base portion bound to a linear body including an electric wire and a clamp portion formed upright from the base portion. The base has four overhanging portions that are bound to the linear body, and a protrusion is formed on the overhanging portion. And when this protrusion part bites into the surface of the electric wire of a linear body or enters into the clearance gap between electric wires, the position shift etc. with an electric wire fixing tool and a linear body are prevented.

JP 2013-74747 A

  However, in the technique disclosed in Patent Document 1, the protruding portion only bites into the surface of the electric wire or enters the gap between the electric wires. For this reason, if the protruding portion slides on the surface of the electric wire or the protruding portion is removed from the gap between the electric wires, the electric wire fixture may be twisted with respect to the linear body.

  Then, an object of this invention is to suppress more reliably the twist of the mounting plate of the electric wire fixing component with respect to an electric wire bundle.

  In order to solve the above-described problem, the wire harness according to the first aspect can be fixed to a vehicle body including a plurality of electric wires, a long plate-like attachment plate having a plurality of protrusions formed on one main surface, and the vehicle body. A wire fixing component including a vehicle body fixing portion, and a binding member that binds the wire bundle and the mounting plate in a state where at least two of the plurality of protrusions enter the wire bundle, Is provided.

  A 2nd aspect is a wire harness which concerns on a 1st aspect, Comprising: At least 2 of these projection parts is pinched | interposed between the at least 2 electric wires located in the outer peripheral side within the said wire bundle. It is what.

  A 3rd aspect is a wire harness which concerns on a 1st or 2nd aspect, Comprising: Each of the said some projection part is formed in the protrusion dimension of 10 mm or more.

  A 4th aspect is a wire harness which concerns on any one 1st-3rd aspect, Comprising: Each of the said some projection part is formed in the shape which becomes thin gradually toward the front end side. Is.

  A 5th aspect is a wire harness which concerns on a 4th aspect, Comprising: Each of these projection parts makes the cross-sectional shape in the direction orthogonal to each protrusion direction make the shape enclosed by a curve. Is formed.

  A sixth aspect is a wire harness according to any one of the first to fifth aspects, wherein the vehicle body fixing portion is provided in an intermediate portion in the extending direction of the mounting plate, and the plurality of protrusions are Including those provided on both sides of the vehicle body fixing portion along the extending direction of the mounting plate.

  The electric wire fixing component according to the seventh aspect includes a long plate-like mounting plate in which a plurality of protrusions having a protruding dimension of 10 mm or more are formed on one main surface, and a vehicle body fixing portion that can be fixed to the vehicle body.

  The electric wire fixing component according to the eighth aspect includes a long plate-like mounting plate in which a plurality of protrusions formed in a shape that gradually narrows toward the tip side on one main surface, and a vehicle body that can be fixed to the vehicle body A fixing part.

  According to the wire harness according to the first aspect, since at least two of the plurality of protrusions are in the wire bundle, the protrusions are not easily removed from the wire bundle, and the wires to the wire bundle are The torsion of the mounting plate of the fixed part can be more reliably suppressed.

  According to the second aspect, since at least two of the plurality of protrusions are sandwiched between at least two electric wires located on the outer peripheral side in the wire bundle, the protrusions are outside the wire bundle. It is difficult to remove, and twisting of the mounting plate of the wire fixing component relative to the wire bundle can be more reliably suppressed.

  According to the third aspect, since each of the plurality of protrusions is formed to have a protrusion dimension of 10 mm or more, the protrusions can easily enter the wire bundle. Thereby, it is hard to remove | project a protrusion part out of an electric wire bundle, and it can suppress more reliably the twist of the mounting plate of the electric wire fixing component with respect to an electric wire bundle.

  According to the 4th aspect, it is easy to make a some projection part enter in an electric wire bundle.

  According to the 5th aspect, since the surrounding surface of a projection part is formed in a curved surface, the damage of the electric wire by a projection part can be suppressed.

  According to the sixth aspect, since the plurality of protrusions enter the wire bundle on both sides of the vehicle body fixing portion in the extending direction of the mounting plate, the mounting plate is twisted around the vehicle body fixing portion with respect to the wire bundle. It becomes difficult.

  According to the seventh aspect, the electric wire fixing part can be attached to the electric wire bundle by binding the electric wire bundle and the mounting plate in a state where the plurality of protrusions are sufficiently inserted into the electric wire bundle. Thereby, it is hard to remove | project a protrusion part out of an electric wire bundle, and it can suppress more reliably the twist of the mounting plate of the electric wire fixing component with respect to an electric wire bundle.

  According to the eighth aspect, it is possible to attach the wire fixing component to the wire bundle by binding the wire bundle and the mounting plate in a state where the plurality of protrusions are easily inserted into the wire bundle.

It is a schematic side view which shows the wire harness which concerns on 1st Embodiment. It is a schematic plan view which shows a wire harness same as the above. It is a schematic sectional drawing in the III-III line of FIG. FIG. 4 is a partially enlarged view of FIG. 3. It is a schematic perspective view which shows an electric wire fixing component. It is a schematic plan view which shows an electric wire fixing component same as the above.

  Hereinafter, the wire harness and electric wire fixing component which concern on embodiment are demonstrated. 1 is a schematic side view showing the wire harness 10, FIG. 2 is a schematic plan view showing the wire harness 10, FIG. 3 is a schematic cross-sectional view taken along line III-III in FIG. 1, and FIG. FIG. FIG. 5 is a schematic perspective view showing the electric wire fixing component 30, and FIG. 6 is a schematic plan view showing the electric wire fixing component 30.

  The wire harness 10 includes an electric wire bundle 12, an electric wire fixing component 30, and a binding member 50.

  The wire bundle 12 is a bundle of a plurality of wires 14. That is, the electric wire bundle 12 is configured by bundling a plurality of electric wires 14 in a manner corresponding to the wiring route of the vehicle body 100 that is the object of arrangement.

  The plurality of wires 14 included in the wire bundle 12 may have different outer diameters or may have the same outer diameter. In the example shown in FIG. 3, the electric wire bundle 12 has shown a mode that the electric wire 14 of a different outer diameter is included. The plurality of electric wires 14 are usually bundled so that the cross-sectional shape in a plane orthogonal to the extending direction is circular. At least a portion of the wire bundle 12 where the wire fixing component 30 is attached, a part of the outer periphery of the covering portion of the plurality of wires 14 located on the outermost periphery of the wire bundle 12 is exposed.

  The electric wire bundle 12 may be branched at a place where the electric wire fixing component 30 is attached or at another place. The electric wire bundle 12 is used as a wiring member for electrically connecting various on-vehicle electric components while being laid on the vehicle body 100. An optical cable or the like may be bundled in the electric wire bundle 12.

  The wire fixing component 30 is a member for supporting the wire bundle 12 with respect to the vehicle body 100 at a fixed position and a fixed posture by being fixed to the vehicle body 100 while being attached to the wire bundle 12.

  That is, the electric wire fixing component 30 includes a mounting plate 32 and a vehicle body fixing portion 40, and is a component integrally molded with resin.

  The mounting plate 32 is formed in an elongated plate shape. The width dimension of the mounting plate 32 is preferably set to be equal to or smaller than the outer diameter dimension of the wire bundle 12 so as not to protrude from both sides of the wire bundle 12, but this is not essential. The length dimension of the mounting plate 32 is set to such a size that the adhesive tape 52 can be wound around a portion extending outward from the vehicle body fixing portion 40.

  A plurality of projections 34 are formed on one main surface of the mounting plate 32.

  The protrusion 34 is a portion for suppressing the displacement of the mounting plate 32 with respect to the wire bundle 12. If at least two protrusions 34 are provided on one main surface of the mounting plate 32, the twisting of the mounting plate 32 with respect to the wire bundle 12 can be suppressed.

  Here, since the vehicle body fixing portion 40 is provided at the intermediate portion in the extending direction of the mounting plate 32, the wire bundle 12 is likely to be twisted with respect to the mounting plate 32 around the vehicle body fixing portion 40. Therefore, in the present embodiment, the vehicle body fixing portions 40 are provided at respective positions on both sides of the vehicle body fixing portion 40 in the extending direction of the mounting plate 32.

  More specifically, a plurality of (here, twelve) protrusions 34 are formed separately on one main surface of the mounting plate 32 into a row from one side in the width direction and a row from the other side in the width direction. Has been. In each row, a plurality (six in this case) of protrusions 34 are spaced along the extending direction of the mounting plate 32 (here, equally spaced) so as to be located on both sides of the vehicle body fixing portion 40. Is formed. In addition, each protrusion 34 in one row is formed so as to be positioned between each protrusion 34 in the other row. That is, the plurality of protrusions 34 are alternately formed along the extending direction of the mounting plate 32 at positions from one side and positions from the other side. But the some projection part formed in the both sides of a mounting plate may be formed in the position which became uniform in the extension direction of the mounting plate 32. FIG.

  The protrusion 34 is configured to be able to enter the wire bundle 12 in a state in which the attachment plate 32 and the wire bundle 12 are bound so that one main surface of the attachment plate 32 contacts the wire bundle 12. The state in which the protruding portion 34 enters the electric wire bundle 12 is caused by the fact that the protruding portion 34 is formed on the surface of the electric wire bundle 12 or a gap originally formed on the surface (for example, the electric wire has a circular cross section). The gap between the two electric wires) exceeding the extent of entering the wire bundle 12. The protrusion 34 is preferably sandwiched between at least two electric wires 14 located on the outer peripheral side in the electric wire bundle 12. More specifically, when the protrusion 34 is disposed between the two electric wires 14 positioned on the outer peripheral side of the wire bundle 12, the tip of the protrusion 34 is the center of the two electric wires 14. It is preferable to enter the wire bundle 12 beyond the line L connecting the shafts. If the protrusion 34 enters the wire bundle 12 in this manner, the protrusion 34 is unlikely to be displaced in the circumferential direction of the wire bundle 12. Of course, if the protrusion 34 is sandwiched between the electric wires 14 as described above, the protrusion 34 is unlikely to be displaced in the extending direction of the electric wire bundle 12.

  In consideration of the fact that the entire one main surface of the mounting plate 32 is not necessarily in close contact with the outer peripheral portion of the wire bundle 12 and the diameter of the wire 14 and the like, The protruding dimension of the portion 34 is preferably 10 mm or more.

  Here, the description will be made on the assumption that the projecting dimensions of all the projecting portions 34 are the same, but the projecting dimensions of the projecting portions may be different.

  In addition, as the shape in which the protruding portion 34 easily enters the wire bundle 12, the protruding portion 34 preferably has a shape that gradually decreases toward the distal end side, for example, a cone shape.

  Moreover, it is preferable that the cross-sectional shape of the protrusion 34 in a direction orthogonal to the protruding direction of the protrusion 34 is a shape (for example, a circle or an ellipse) surrounded by a curve that protrudes outward. . If it is such a shape, since the outer peripheral surface of the projection part 34 makes a curved surface, the said outer peripheral surface contacts the electric wire 14, and it is hard to damage the said electric wire 14. FIG.

  Here, the protrusion 34 is formed in a conical shape. The tip of the protrusion 34 may be rounded. Of course, the protrusion may be formed in a pyramid shape, a cylindrical shape, an elliptical column shape, a prismatic shape, or the like in addition to the above shape.

  The vehicle body fixing portion 40 is integrally formed so as to protrude from an intermediate portion in the extending direction of the other main surface (the lower surface in FIG. 1) of the mounting plate 32. The vehicle body fixing portion 40 is formed so as to be fixed to the vehicle body.

  Here, the vehicle body fixing portion 40 includes a dish-like portion 42 and a locking lock portion 44. Accordingly, the mounting plate 32 extends on both sides of the vehicle body fixing portion 40. The dish-shaped part 42 is formed in a dish shape that gradually spreads toward the locking lock part 44 side, and is a part used as a disk spring. Further, the locking lock portion 44 is a portion that is formed to project from the central portion inside the dish-like portion 42, and includes a column portion 45 and a pair of elastic pieces 46. The column part 45 is formed in a shape protruding outward from the center part of the dish-like part 42. The pair of elastic pieces 46 are formed in a shape extending so as to spread outward from the distal end portion of the column portion 45 toward the proximal end portion. The pair of elastic pieces 46 is configured to be elastically deformable in a direction approaching and moving away from the column part 45.

  The vehicle body fixing portion 40 is a portion that is fixed to the vehicle body 100 by being inserted into a fixing hole 102 formed in the vehicle body 100. That is, when the vehicle body fixing portion 40 is inserted into the fixing hole 102, the pair of elastic pieces 46 come into contact with the peripheral edge portion of the fixing hole and elastically deform inward. When the vehicle body fixing portion 40 is further pushed in and the pair of elastic pieces 46 get over the peripheral edge portion of the fixing hole 102, the pair of elastic pieces 46 tends to be deformed so as to return to the original shape by elastic force. Then, the front ends of the pair of elastic pieces 46 are locked to the peripheral edge of the fixing hole 102 from the side opposite to the insertion direction of the vehicle body fixing part 40, and the peripheral edge of the fixing hole 102 is connected to the dish-shaped part 42 and the pair of elastic members. It is sandwiched between the tips of the pieces 46. Thereby, the vehicle body fixing part 40 is fixed to the vehicle body 100.

  The electric wire fixing component 30 including the mounting plate 32 and the vehicle body fixing portion 40 is also called a sleeve clamp. The one with the mounting plate extending on both sides with respect to the vehicle body fixing part is called a double sleeve clamp, and the one with the mounting plate extending only on one side with respect to the vehicle body fixing part is called a single sleeve clamp. is there. Here, although the example in which the electric wire fixing component 30 is a double sleeve clamp will be described, a single sleeve clamp may be used. Moreover, the extension board extended to the side of the attachment board attached along an electric wire bundle may be formed, and the vehicle body fixing | fixed part may be formed in the said extension board. Such a part is sometimes called an offset clamp.

  But the vehicle body fixing | fixed part should just be the structure fixable with respect to a vehicle body, and does not need to be the said structure. For example, a configuration in which the plate-like portion of the vehicle body is sandwiched and fixed between a pair of tooth-shaped portions, a configuration in which a stud bolt protruding from the vehicle body is fixed by being tightened with a nut inserted, and a protrusion protruding from the vehicle body A configuration in which the elongated plate-like bracket plate is inserted and locked and fixed may be employed.

  The binding member 50 is a member that binds the wire bundle 12 and the mounting plate 32 in a state where at least two of the plurality of protrusions 34 are inserted into the wire bundle 12. Here, an adhesive tape 52 is used as the binding member 50.

  That is, with the extending direction of the mounting plate 32 matched with the extending direction of the wire bundle 12, the mounting plate 32 is connected to the wire bundle 12 while the plurality of protrusions 34 are inserted between the wires 14 of the wire bundle 12. The one main surface of the mounting plate 32 is brought into contact with a part of the outer peripheral portion of the wire bundle 12. Here, the protrusions 34 are provided in two rows from both sides of the one main surface of the mounting plate 32. For this reason, the center part in the width direction of the mounting plate 32 makes the best contact with the electric wire bundle 12, and the protrusions 34 enter between the electric wires 14 of the electric wire bundle 12 on both sides thereof. In this state, the adhesive tape 52 is spirally wound around both ends of the mounting plate 32 and the wire bundle 12. Thereby, the electric wire fixing component 30 is attached to the electric wire bundle 12. Here, all the protrusions 34 enter the electric wire bundle 12 so as to be sandwiched between the electric wires 14.

  The protrusion 34 enters the wire bundle 12 beyond the extent of biting into the coated surface of the wire or entering the gap between the wires, and is sandwiched between the wires 14. For this reason, as long as the bundling state of the electric wires 14 is maintained in a constant state, the protrusions 34 are not easily displaced in the circumferential direction of the electric wires 14. Further, at least two protrusions 34 enter the electric wire bundle 12 and are sandwiched between the electric wires 14, whereby the mounting plate 32 with respect to the electric wire bundle 12 and the electric wire fixing component 30 including the same are suppressed from being twisted.

  Depending on the number of projections formed on the mounting plate, formation position, etc., there is a possibility that some of the projections may not enter the wire bundle so that they are sandwiched between the wires. In this case, it is sufficient that at least two protrusions enter the wire bundle. This is because if at least two protrusions enter the wire bundle, twisting of the wire fixing component 30 with respect to the wire bundle 12 is suppressed.

  As the binding member, a binding band or the like may be used in addition to the adhesive tape.

  By the way, when the case where the said protrusion part 34 is not formed is assumed, in the above attachment structures, an attachment board will be hold | maintained in a fixed position with respect to an electric wire bundle with an adhesive tape. However, if only the holding force by the adhesive tape is used, the mounting plate may be displaced from the wire bundle. In particular, when the wire bundle has a large diameter (for example, a diameter of 25 to 40 mm) and the diameter dimension is larger than the width dimension of the mounting plate, the wound adhesive tape presses the mounting plate toward the wire bundle. Becomes weaker. For this reason, if the diameter dimension of the wire bundle is large, the mounting plate is likely to be displaced, and therefore, the wire bundle 12 is easily twisted.

  Therefore, as described above, a plurality of protrusions 34 are provided on the attachment plate 32 and the protrusions 34 are caused to enter the wire bundle 12, thereby twisting the attachment plate 32 and the wire fixing component 30 with respect to the wire bundle 12. It can be effectively suppressed. Therefore, it can be said that the wire harness 10 and the wire fixing component 30 are particularly effective when applied to the wire bundle 12 having a large diameter.

  According to the wire harness 10 configured as described above, since at least two of the plurality of protrusions 34 are in the state of entering into the electric wire bundle 12, the protrusions 34 are difficult to take out of the electric wire bundle 12. More specifically, since at least two of the plurality of protrusions 34 are sandwiched between at least two wire bundles 12 positioned on the outer peripheral side in the wire bundle 12, the protrusions 34 are connected to the wire bundle 12. It is difficult to take it out. Thereby, the twist of the attachment plate 32 of the wire fixing component 30 with respect to the wire bundle 12 can be more reliably suppressed.

  In particular, when the protruding dimension of the protruding portion 34 of the electric wire fixing component 30 is 10 mm or more, the protruding portion 34 can sufficiently enter the electric wire bundle 12. Thereby, it becomes difficult for the projection part 34 to remove | deviate out of the electric wire bundle 12, and the twist of the attachment plate 32 of the electric wire fixing component 30 with respect to the electric wire bundle 12 can be suppressed more reliably.

  Further, when the protruding portion 34 is formed in a shape that gradually narrows toward the tip end side, the protruding portion 34 can easily enter the wire bundle 12. For this reason, the wire harness 10 which attached the electric wire fixing component 30 to the electric wire bundle 12 can be manufactured easily.

  Further, since the protrusion 34 is formed so that the cross-sectional shape in a direction orthogonal to the protrusion direction is surrounded by a curve, the outer peripheral surface of the protrusion 34 damages the electric wire 14. It is difficult and damage to the electric wire 14 due to the protrusion 34 can be suppressed.

  In addition, since the protrusions 34 are formed on both ends of the mounting plate 32, a plurality of protrusions enter the wire bundle 12 on both sides of the vehicle body fixing portion 40 in the extending direction of the mounting plate 32. For this reason, the attachment plate 32 is less likely to be twisted around the vehicle body fixing portion 40 with respect to the wire bundle 12.

  As described above, the present invention has been described in detail. However, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Wire harness 100 Car body 12 Electric wire bundle 14 Electric wire 30 Electric wire fixing component 32 Mounting plate 34 Projection part 40 Car body fixing part 50 Binding member 52 Adhesive tape

Claims (8)

A bundle of wires including a plurality of wires;
On the other hand, a wire fixing part including a long plate-like mounting plate having a plurality of protrusions formed on the main surface, and a vehicle body fixing portion that can be fixed to the vehicle body,
A binding member that binds the wire bundle and the mounting plate in a state in which at least two of the plurality of protrusions enter the wire bundle,
Wire harness comprising The wire harness according to claim 1,
At least two of the plurality of protrusions are wire harnesses that are sandwiched between at least two electric wires located on the outer peripheral side in the electric wire bundle. The wire harness according to claim 1 or 2,
Each of the plurality of protrusions is a wire harness formed to have a protruding dimension of 10 mm or more. The wire harness according to any one of claims 1 to 3,
Each of the plurality of protrusions is a wire harness that is formed in a shape that gradually narrows toward the tip side. The wire harness according to claim 4,
Each of the plurality of protrusions is a wire harness that is formed such that a cross-sectional shape in a direction orthogonal to the protruding direction is surrounded by a curve. It is a wire harness of any one of Claims 1-5, Comprising:
The vehicle body fixing portion is provided at an intermediate portion in the extending direction of the mounting plate,
The plurality of protrusions are wire harnesses including those provided on both sides of the vehicle body fixing portion along the extending direction of the mounting plate. On the other hand, a long plate-like mounting plate in which a plurality of protrusions having a protruding dimension of 10 mm or more are formed on the main surface;
A vehicle body fixing portion that can be fixed to the vehicle body;
Electric wire fixing parts comprising. On the other hand, a long plate-like mounting plate in which a plurality of protrusions formed in a shape that gradually narrows toward the tip side on the main surface,
A vehicle body fixing portion that can be fixed to the vehicle body;
Electric wire fixing parts comprising.

Images