JP5533192B2 - How to attach the wire harness to the support - Google Patents

Description

The present invention relates to a method of attaching the wire harness Ru provided with a clamping wire for fixing the wires and the wire to the support to the support.

  Wire harnesses provided on vehicles such as automobiles are designed to facilitate the installation work of electrical components and to cope with the movement of electrical components provided on movable parts. It is formed with a sufficient length. Furthermore, the vehicle wire harness is likely to come into contact with other members such as a vehicle body panel due to vibration or the like. Contact of the wire harness with other members causes damage to the wire harness and noise.

  Therefore, in order to prevent damage and noise of the wire harness due to the surplus portion of the wire harness coming into contact with another member, a surplus length absorbing mechanism may be provided in the vehicle wire harness. The surplus length absorption mechanism is a mechanism for holding the electric wire in a state where it is apparently shorter than its original length.

  For example, Patent Document 1 discloses a wire harness including a mechanism in which a part of an electric wire in a wire harness is wound and accommodated in a case and pulled out from the case as necessary. In this wire harness, the case for housing the wire harness is a surplus length absorbing mechanism for the wire harness.

  Moreover, in order to facilitate the work of fixing a vehicle-mounted wire harness to a support body such as a body of an automobile, a wire clamp held at the edge of an attachment hole provided in the support body is provided on the wire portion. It is attached. The electric wire clamp is held at the edge of the mounting hole by being inserted into an electric wire support portion to which the electric wire of the wire harness is fixed and the electric wire support portion, and being inserted into an attachment hole formed in the support body. With fasteners. For example, Patent Literature 2 discloses an electric wire clamp including two sets of electric wire support portions and fasteners.

JP 2006-314176 A JP 2006-151110 A

  However, the surplus length absorbing mechanism shown in Patent Document 1 has a complicated structure, and it is difficult to adjust the positional relationship between the wire harness and the case that accommodates it. Therefore, when the surplus length absorbing mechanism shown in Patent Document 1 is applied to a mass-produced product such as a wire harness for a vehicle, there is a disadvantage in terms of man-hours and costs for attachment to a support such as a body of an automobile. There was a problem that it was remarkable. Patent Document 2 does not describe any extra length absorption mechanism of the wire harness.

The present invention aims to provide a method for attaching the surplus length absorbing mechanism wire harness clamp wire is provided to Ru with easily.

The method according to the present invention is a method for mounting a wire harness Ru provided with a clamping wire for fixing the wires and the wire to the support to the support. The wire clamp includes the following components.
(1, 2) The first and second components are a first electric wire support and a second electric wire support, respectively, to which a part of the electric wire is fixed.
(3) As for the 3rd component, both ends were fixed to each of the 1st electric wire support part and the 2nd electric wire support part, and the end fixed to the 2nd electric wire support part was fixed to the 1st electric wire support part It is a flexible intermediate connecting part that can be folded back toward the end.
(4) A 4th component is a fastener hold | maintained at the edge of an attachment hole by being fixed to the 1st electric wire support part and being inserted in the attachment hole formed in the support body.
(5) A 5th component is the 1st engaging part provided in the 1st electric wire support part.
(6) The sixth component is provided in the second electric wire support portion, and the second electric wire support portion is moved to a position facing the first electric wire support portion with the deformation of the intermediate connection portion. A second engaging portion that engages with and holds one engaging portion.
And the method of attaching said wire harness to a support body is the procedure which connects the terminal of the side fixed to the said 2nd electric wire support part in the said electric wire to an electrical component, and the said terminal of the said electric wire connects to the said electrical component After the second electric wire support portion is rotated to a position facing the first electric wire support portion, the second engagement portion is engaged with the first engagement portion, thereby And a procedure for folding the extra length portion of the electric wire in half at a position between a portion fixed to the first electric wire support portion and a portion fixed to the second electric wire support portion.

It is conceivable that the method according to the present invention further includes a procedure of holding the fastener on the edge of the mounting hole in the support body before the procedure of connecting the end of the electric wire to the electrical component .

In the method according to the present invention, it is conceivable that an operation of rotating the second electric wire support portion toward the first electric wire support portion is performed by a finger inserted into the through hole of the support body. For example, in each of the first electric wire support portion and the second electric wire support portion, a part of the electric wire is fixed by winding an adhesive tape.

  In the present invention, the second electric wire support portion can be rotated to a position facing the first electric wire support portion by the flexibility (deformation) of the intermediate connection portion in which the two electric wire support portions are connected to both ends. Then, the second wire support part to which a part of the electric wire is fixed is rotated to a position facing the first electric wire support part to which the other part of the electric wire is fixed. The two electric wire support portions are engaged and held in opposition. In that case, an electric wire is folded in half in the position between the parts fixed to each of two electric wire support parts. In addition, one of the two electric wire support portions (first electric wire support portion) that holds the electric wire in a folded state is held on the support by the fastener.

That is, in the present invention, the electric wire clamp and the wire harness including the electric wire are held on the support in a state in which the extra length of the electric wire is folded in half so that the electric wire is apparently shorter than the original length. An extra length absorption mechanism is provided. Moreover, the electric wire clamp can be attached to the support body by a very simple operation of inserting the fastener into the attachment hole of the support body and rotating the second electric wire support part to the first electric wire support part side. is there.

It is a side view of the clamp 1 for electric wires which concerns on embodiment of this invention. It is a top view of the clamp 1 for electric wires. It is a front view of the clamp 1 for electric wires. It is a side view which shows the state by which the wire harness provided with the clamp 1 for electric wires was attached to the support body. It is a side view of a wire harness provided with the clamp 1 for electric wires.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The following embodiment is an example embodying the present invention, and does not have the character to limit the technical scope of the present invention.

Hereinafter, an electric wire clamp 1 and a wire harness including the electric wire clamp 1 used in the method according to the embodiment of the present invention will be described with reference to FIGS. 1 to 5. The electric wire clamp 1 is a member that holds an electric wire of a wire harness on a support body such as a body of an automobile or an instrument panel. In addition, the wire clamp 1 includes a surplus length absorbing mechanism that holds the wire in the wire harness in a state of being apparently shorter than its original length.

  As shown in FIGS. 1 to 3, the wire clamp 1 includes a fastener 10, a first wire support portion 20, a second wire support portion 30, an intermediate connection portion 40, and lock mechanisms 21 and 31. The electric wire clamp 1 is an integrally molded member made of a thermoplastic resin such as polypropylene (PP) or polyamide (PA).

  The 1st electric wire support part 20 and the 2nd electric wire support part 30 are parts to which a part of electric wire is fixed, respectively. In addition, in the example shown by FIGS. 1-3, although the 1st electric wire support part 20 and the 2nd electric wire support part 30 are plate shape, it is also considered that it is rod shape, such as prismatic shape or a column shape. Each of the first electric wire support part 20 and the second electric wire support part 30 is formed with taping regions 20A and 30A to which a part of the electric wire is fixed by winding an adhesive tape.

  The intermediate connection part 40 is a member that is fixed at both ends to the first electric wire support part 20 and the second electric wire support part 30 and connects the first electric wire support part 20 and the second electric wire support part 30. In the example shown in FIGS. 1 and 2, the intermediate connecting portion 40 is plate-shaped, and the thickness thereof is thinner than the thicknesses of the first electric wire support portion 20 and the second electric wire support portion 30. Thereby, the intermediate | middle connection part 40 has the flexibility which can deform | transform back the edge part fixed to the 2nd electric wire support part 30 to the edge part side fixed to the 1st electric wire support part 20. FIG.

  2 and 3 are a plan view and a front view of the electric wire clamp 1 in a state where the intermediate connecting portion 40 is extended in a flat plate shape.

  In the wire clamp 1, the second wire support portion 30 is supported by the first wire support due to the flexibility (deformation) of the intermediate connection portion 40 in which the first wire support portion 20 and the second wire support portion 30 are connected to both ends. It can be rotated to a position facing the portion 20. In other words, the electric wire clamp 1 can be folded in half with the intermediate connecting portion 40 as a bent portion.

  It is also conceivable that the intermediate connecting portion 40 is a plurality of thin strip-like or rod-like members whose both ends are fixed to the first electric wire support portion 20 and the second electric wire support portion 30, respectively. Moreover, the intermediate | middle connection part 40 is a member formed by the same width as the 1st electric wire support part 20 and the 2nd electric wire support part 30, and thickness thinner than the 1st electric wire support part 20 and the 2nd electric wire support part 30. It is also possible. The intermediate connecting portions 40 such as these also have flexibility that can be deformed by turning the end portion fixed to the second electric wire support portion 30 back to the end portion side fixed to the first electric wire support portion 20.

  The fastener 10 is fixed to one surface (the lower surface in FIG. 1) of the plate-shaped first electric wire support portion 20. The fastener 10 is a portion that is held at the edge of the mounting hole by being inserted into a mounting hole formed in a support body such as a body of an automobile or an instrument panel.

  As will be described later, the surface (upper surface in FIG. 1) opposite to the surface to which the fastener 10 is fixed in the first electric wire support portion 20 is a surface on which the electric wires are held. Further, when the electric wire clamp 1 is folded in two with the intermediate connecting portion 40 as the bent portion, the second electric wire support portion 30 that faces the surface (the upper surface in FIG. 1) that holds the electric wire in the first electric wire support portion 20. One surface (the upper surface in FIG. 1) is also a surface on which the electric wire is held.

  FIG. 4 is a side view showing a state where the wire harness including the wire clamp 1 is attached to the support 6. As shown in FIGS. 1 to 4, the fastener 10 includes an insertion portion 11 that is inserted into an attachment hole 6 </ b> A formed in the support 6, and a dish-shaped flange portion 12 that is not inserted into the attachment hole 6 </ b> A. .

  The insertion portion 11 is provided with two column portions 111 erected on one surface of the flange portion 12, a beam portion 112 erected with respect to the two column portions 111, and protruding on both sides of the beam portion 112. And two locking portions 113. The two locking portions 113 have flexibility, and are formed so that the width of the two protruding portions 113 on both sides of the beam portion 112 is larger than the width of the mounting hole 6A.

  The flange portion 12 is formed with an area larger than the area of the mounting hole 6A so as to block the mounting hole 6A. For example, the flange portion 12 is formed in a dish shape having an elliptical surface that is slightly larger than the elliptical attachment hole 6A.

  When the insertion portion 11 is inserted into the attachment hole 6A, the two locking portions 113 are pressed against the edge (support 6) of the attachment hole 6A, and the width of the two protruding portions on both sides of the beam portion 112 is Shrinks to the width of the mounting hole 6A. When the insertion portion 11 is further pushed into the inside of the mounting hole 6A, the shapes of the two locking portions 113 are restored until the width of the back side of the edge of the mounting hole 6A becomes larger than the width of the mounting hole 6A. As a result, the claw portion 113A formed on the outer side of each of the two locking portions 113 is caught on the back side of the edge portion of the attachment hole 6A, and the claw portion 113A and the flange portion 12 face the edge portion of the attachment hole 6A. Insert from both sides. As a result, the fastener 10 is held on the support 6.

  The lock mechanisms 21 and 31 are mechanisms that hold the first wire support portion 20 and the second wire support portion 30 in a state of facing each other. The lock mechanisms 21 and 31 are configured by claw receiving portions 21 installed at two locations on the first electric wire support portion 20 and arm portions 31 provided at two locations on the second electric wire support portion 30. The claw receiving portion 21 forms a retaining hole 21A into which the distal end portion of the arm portion 31 is inserted.

  The second wire support portion 30 is rotated to a position facing the first wire support portion 20 with the deformation of the intermediate connecting portion 40, so that the tip portion of the arm portion 31 is the retaining hole 21 </ b> A of the claw receiving portion 21. The claw portion 31A provided at the tip of the arm portion 31 and the claw receiving portion 21 are engaged with each other, and the arm portion 31 is held by the claw receiving portion 21. Thereby, the 1st electric wire support part 20 and the 2nd electric wire support part 30 are hold | maintained in the state which mutually opposes. The claw receiving portion 21 and the arm portion 31 are examples of a first engaging portion and a second engaging portion, respectively.

  In addition to the examples shown in FIGS. 1 to 3, it is also conceivable that the arm portion 31 is provided in the first wire support portion 20 and the claw receiving portion 21 is provided in the second wire support portion 30. Further, the lock mechanisms 21 and 31 may be other than the mechanisms shown in FIGS. 1 to 3. For example, it is conceivable that the lock mechanism includes a groove portion provided in one and the other of the first electric wire support portion 20 and the second electric wire support portion 30 and a protrusion portion that fits into the groove portion. In this case, the first wire support portion 20 and the second wire support portion 30 are held in a state of being opposed to each other by fitting the protruding portion into the groove portion.

  Next, referring to FIG. 4 and FIG. 5, a wire harness according to an embodiment of the present invention, that is, a wire harness provided with an electric wire 9 and an electric wire clamp 1 that holds the electric wire 9 on a support 6. explain.

  FIG. 5 is a side view of a wire harness provided with the wire clamp 1. As shown in FIG. 5, a part of the electric wire 9 is formed by winding the adhesive tape 7 around the taping regions 20 </ b> A and 30 </ b> A in the first electric wire support portion 20 and the second electric wire support portion 30 in the electric wire clamp 1. Fixed.

  In each of the first wire support portion 20 and the second wire support portion 30, the taping regions 20 </ b> A and 30 </ b> A are, for example, end regions farthest from the intermediate connection portion 40. In the example shown in FIGS. 1, 2, and 5, the taping regions 20 </ b> A and 30 </ b> A are provided in one place in each of the first wire support portion 20 and the second wire support portion 30. However, it is also conceivable that two or more taping regions 20A and 30A are provided in each of the first electric wire support portion 20 and the second electric wire support portion 30.

Further, the electric wire 9, the site of the base side connected to the source of the signal or power to electrical components (right side in FIG. 5) is fixed to taping area 20A of the first wire supporting portion 20. Further, the electric wire 9, the site of end side connected to the electrical components (left side in FIG. 5) is fixed to the taping area 30A of the second wire supporting portion 30.

Next, a method according to an embodiment of the present invention will be described. When the wire clamp 1 is attached to the wire 9 of the wire harness in the state shown in FIG. 5, the wire clamp 1 is attached to the attachment hole 6 </ b> A portion of the support 6 by the following two procedures.

  The first procedure is a procedure for inserting the insertion portion 11 of the fastener 10 into the attachment hole 6 </ b> A of the support 6. Thereby, the 1st electric wire support part 20 by which the part by the side of the base of the electric wire 9 was fixed by this is hold | maintained at the edge of 6 A of attachment holes of the support body 6. FIG. In this state, the electric wire 9 is held by the support body 6 via the electric wire clamp 1 in a state where the electric wire 9 extends in its original length.

  Accordingly, when the end of the electric wire 9 is connected to an electrical component such as an instrument attached from the front side to the opening of a housing such as an instrument panel, the length of the electric wire 9 is effectively utilized. That is, since the end of the electric wire 9 can be sufficiently drawn out from the opening portion of the housing to the front side, the end of the electric wire 9 is connected to the electrical component, and the electrical component is connected to the opening portion of the housing from the front side. Installation is easy.

  However, when the electric component connected to the terminal of the electric wire 9 is attached at a predetermined position, the electric wire 9 having an extra length hangs down on the back side of the casing to which the electric component is attached. And the part which the electric wire 9 drooped contacts with a surrounding member, and it causes the damage of the electric wire 9, and a noise. Therefore, after the electrical component connected to the end of the electric wire 9 is attached at a predetermined position, the following second procedure is performed.

  The second procedure is to support the first electric wire support 30 with the second electric wire support portion 30 to which a part of the terminal side of the electric wire 9 is fixed in a state where the fastener 10 is held in the attachment hole 6A portion of the support 6. This is a procedure for rotating the unit 20 to a position facing the unit 20. Thereby, as shown in FIG. 4, the claw portion 31 </ b> A of the arm portion 31 of the second electric wire support portion 30 and the claw receiving portion 21 of the first electric wire support portion 20 are engaged, and the first electric wire support portion 20 and The 2nd electric wire support part 30 is hold | maintained in the state which mutually opposes.

  Also, as shown in FIG. 4, the electric wire 9 is located at a position between the root side portion fixed to the first electric wire support portion 20 and the end side portion fixed to the second electric wire support portion 30. In a state of being folded in half, it is held on the support 6 via the electric wire clamp 1. Thereby, the extra length part of the electric wire 9 is hold | maintained in the state folded in half between the 1st electric wire support part 20 and the 2nd electric wire support part 30 which were hold | maintained facing. The support 6 is formed with a through hole (not shown) for inserting a finger for performing an operation of rotating the second electric wire support 30 toward the first electric wire support 20.

  As described above, the electric wire clamp 1 provided in the wire harness has the support 6 in a state where the electric wire 9 is partially folded so that the electric wire 9 is apparently shorter than its original length. A surplus length absorption mechanism is provided. Moreover, the electric wire clamp 1 provided in the wire harness is very simple in that the fastener 10 is inserted into the attachment hole 6A of the support 6 and the second electric wire support 30 is rotated to the first electric wire support 20 side. It is possible to attach to the support body 6 by a simple operation.

  In the wire harness provided with the electric wire clamp 1, the number of the electric wires 9 fixed to the electric wire clamp 1 is determined according to the specification of the electrical component to be connected. In addition, the length and width of the first electric wire support portion 20 and the second electric wire support portion 30 in the electric wire clamp 1 and the length of each of the arm portion 31 and the intermediate connection portion 40 are the number and thickness of the electric wires 9 to be fixed. It is set appropriately according to the size.

  Moreover, in the 1st electric wire support part 20 and the 2nd electric wire support part 30 of the clamp 1 for electric wires, it is also considered that the groove | channel in which the electric wire 9 is inserted is provided in the surface holding the electric wire 9. FIG. Thereby, the electric wire 9 fixed by the adhesive tape is not easily detached from the first electric wire support portion 20 and the second electric wire support portion 30.

  It is also conceivable that each of the first electric wire support portion 20 and the second electric wire support portion 30 is provided with a gripping portion that holds the electric wire 9 therebetween. This also makes it difficult for the electric wire 9 fixed by the adhesive tape to be detached from the first electric wire support portion 20 and the second electric wire support portion 30. Further, depending on the situation, a taping operation for fixing the electric wire 9 to each of the first electric wire support portion 20 and the second electric wire support portion 30 becomes unnecessary.

DESCRIPTION OF SYMBOLS 1 Clamp for electric wires 6 Support body 6A Mounting hole 7 Adhesive tape 9 Electric wire 10 Fastener 11 Insertion part 12 Flange part 20 First electric wire support part 20A, 30A Taping area 21 Claw receiving part (locking mechanism)
21A Fastening hole 30 Second wire support part 31 Arm part (locking mechanism)
31A Claw part 40 Intermediate connection part 111 Supporting part 112 Beam part 113 Locking part 113A Claw part

Claims (4)

A method for attaching a wire harness comprising an electric wire and a wire clamp for fixing the electric wire to a support,
The wire clamp is
A first wire support portion and a second wire support portion, each of which is a part of the wire,
Deformation in which both ends are fixed to each of the first electric wire support part and the second electric wire support part and the end part fixed to the second electric wire support part is folded back to the end part side fixed to the first electric wire support part A flexible intermediate coupling part capable of
A fastener that is fixed to the first electric wire support and is held at an edge of the attachment hole by being inserted into an attachment hole formed in the support.
A first engagement portion provided on the first electric wire support portion;
Provided in the second electric wire support portion, and when the second electric wire support portion is rotated to a position facing the first electric wire support portion with deformation of the intermediate connection portion, in case you are e Bei a second engagement portion for holding the engaging and,
A procedure for connecting the terminal on the side fixed to the second electric wire support portion of the electric wire to an electrical component,
After the end of the electric wire is connected to the electrical component, the second engaging portion is turned to the first by rotating the second electric wire supporting portion to a position facing the first electric wire supporting portion. Engage with the engaging portion, and thereby make the extra length portion of the wire folded in half at a position between the portion fixed to the first electric wire support portion and the portion fixed to the second electric wire support portion. A method of attaching a wire harness to a support . Before step for connecting the ends of the wire to the electrical component, wherein further comprising a fastener The procedure of holding the edge of the mounting hole in the support, the support of the wire harness according to claim 1 How to attach to . The method of attaching the wire harness of Claim 2 to a support body by which operation which rotates the said 2nd electric wire support part to the said 1st electric wire support part side with the finger inserted in the through-hole of the said support body is performed. The first electric wire support portion and the second electric wire support portion in the electric wire clamp each have a part of the electric wire fixed by winding an adhesive tape. The method of attaching the wire harness as described in 1 to a support body .

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