JP4430994B2 - Assembly structure of wire harness - Google Patents

Description

The present invention relates to a wire harness assembly structure in which a wire harness is transported while being fixed to a base such as a carpet for a vehicle and assembled to a vehicle as it is.

  FIG. 9 shows an embodiment of a conventional method for assembling a wire harness (see Patent Document 1).

  The wire harness 21 is housed in a groove 23 of a synthetic resin packing case 22, and the packing case 22 is transported in a state of being stacked in a plurality of stages. The groove 23 is formed in a shape close to the vehicle wiring form of the wire harness 21.

  The packaging case 22 transported to the vehicle assembly process is disposed along the inner surface of the automobile door, for example, and an operator pushes out the wire harness 21 from the hole (not shown) on the back side of the packaging case 22 and assembles it to the automobile door. Assembly of the wire harness 21 to the door is performed, for example, by a band clip (not shown) attached to the wire harness 21 in advance. The band clip is obtained by projecting a pair of flexible locking claws (clips) on a synthetic resin band.

In FIG. 9, reference numeral 24 denotes a connector of the wire harness, 25 denotes a positioning pin at the time of stacking, and 26 denotes a positioning hole. The wire harness 21 is lightly pushed and held in the groove 23 with the outer periphery wound with vinyl tape, and the connector 24 at the end of the wire harness 21 is inserted and held in the recess 27 at the end of the groove 23.
Japanese Patent Laid-Open No. 11-198942 (page 3, FIG. 1)

  However, in the above conventional method of assembling the wire harness, since the packaging case 22 is used as the conveyance base, the cost of the packaging case 22 is increased and the weight and volume are increased by the hard and thick packaging case 22. There are problems such as a decrease in transportation capacity and an increase in transportation cost and an increase in storage space. Further, it takes time and labor to fix the wire harness 21 in the packaging case and transport it, and then to take out the wire harness 21 from the packaging case 22 in the vehicle assembly process after transportation. In particular, it is troublesome to take out the wire harness 21 in the vehicle assembly process. There was a problem that there was.

In view of the above facts, eliminating the need to retrieve the vehicle assembly process the wire harness from the transporting base, the assembling of the wire harness to the vehicle efficiently can be carried out, the As a wire harness transport base An object of the present invention is to provide an assembly structure of a wire harness that can be securely and neatly fixed.

In order to achieve the above object, an assembly structure of a wire harness according to claim 1 of the present invention is provided with at least a pair of holes through which a binding tool is inserted into a sheet-like or mat-like base, and the pair of holes In the wire harness assembly structure in which the binding tool is inserted into the wire harness and the wire harness is fixed to the base with the binding tool, and the wire harness can be assembled to the assembly together with the base. from but the wire harness much larger than the outer diameter, cut from the inner end of Kakuana portion to said base between said pair of holes are provided, strapping tool during tightening of the closure is the hole portion It enters into this notch, It is characterized by the above-mentioned.

  With the above configuration, the wire harness is fixed to the sheet-shaped or mat-shaped base with the binding tool to configure the wire harness assembly, and this wire harness assembly is sent to, for example, the vehicle assembly process for transportation or the like. In the process, the base is assembled to the vehicle body or the like, and at the same time, wiring of the wire harness is completed.

  The sheet-like or mat-like base preferably has softness or flexibility. Since the base is flexible, rubbing of the wire harness during conveyance is prevented. Examples of the base include a floor carpet and a room partition that are assembled to a vehicle. The wire harness is safely protected between the laminated bases without interference with the outside. As a binding tool, a binding band made of synthetic resin is preferable in terms of ensuring workability and securing force. The binding band includes, for example, a band main body and a locking portion that passes through the band main body.

Further, when the tie is tightened to reduce the diameter, the tie enters the inside of the cut inward, and the tie is preferably equal to or less than the outer diameter of the wire harness between the pair of cuts. Located along the base in length. Thereby, the slack of a base, wrinkles, and a bulge between a pair of hole parts are prevented, and a binding tool binds a wire harness firmly.

The assembly structure of the wire harness according to claim 2 is provided with at least a pair of holes through which a binding tool is inserted into a sheet-like or mat-shaped base, and the binding tool is inserted into the pair of holes. the wire harness is fixed to the base, the wire harness in the assembly structure of a wire harness which enables assembling each said base assembly, the outer diameter of the wire harness than the gap of the pair of holes is rather large A cut is provided in the base from the outer ends of the pair of holes , and the binding tool enters the hole from the cut when the binding tool is tightened .

With the above configuration, the wire harness is fixed to the sheet-shaped or mat-shaped base with the binding tool to configure the wire harness assembly, and this wire harness assembly is sent to, for example, the vehicle assembly process for transportation or the like. In the process, the base is assembled to the vehicle body or the like, and at the same time, wiring of the wire harness is completed.
In addition, the sheet-like or mat-like base preferably has flexibility or flexibility. Since the base is flexible, rubbing of the wire harness during conveyance is prevented. Examples of the base include a floor carpet and a room partition that are assembled to a vehicle. The wire harness is safely protected between the laminated bases without interference with the outside. As a binding tool, a binding band made of synthetic resin is preferable in terms of ensuring workability and securing force. The binding band includes, for example, a band main body and a locking portion that passes through the band main body.
Further, when the binding tool is inserted through the pair of holes, the cutting is continued outside the holes, so that the binding tool can be inserted through the cutting. When the binding tool is tightened to reduce the diameter, the binding tool enters the hole from the notch, and is connected with a smooth curve from the outer peripheral surface of the wire harness to the pair of holes, so that the wire can be securely connected without loosening. Secure the harness to the base. The distance between the outer ends (terminations) of the pair of cuts is preferably about the same as the outer diameter of the wire harness.

The assembly structure of the wire harness according to claim 3 is the assembly structure of the wire harness according to claim 1 or 2 , wherein a second cut perpendicular to the cut is provided.

By the said structure, the opening of a notch becomes large and the penetration property and penetration property of a binding tool improve. That is, in the notch of the first aspect , the binding tool smoothly enters the notch without being twisted, and in the notch of the second aspect , the resistance force against the binding tool when the binding tool is inserted into the notch. Will weaken and insertion will be smooth.

  According to the first and second aspects of the invention, the wire harness can be transported safely and efficiently at low cost without using a member such as a conventional packing case, and the wire harness is assembled with the base. By assembling, the wiring harness wiring work becomes unnecessary, and the number of assembling steps and the assembling cost are reduced.

According to the first aspect of the present invention, a small-diameter wire harness can be securely fastened and fixed without loosening over time, and the looseness of the wire harness and the accompanying damage can be prevented, and the pair of bases can be prevented. It is possible to prevent slack, wrinkles and bulges between the holes, and the base can be assembled to the assembly stably and cleanly.

According to the second aspect of the present invention, the binding tool can be easily inserted into the pair of holes with good workability, and the large-diameter wire harness can be securely fastened to the base without loosening with the binding tool. Can do.

According to the third aspect of the present invention, the diameter reducing operation of the binding tool in the first aspect is smoothly performed, the effect of the first aspect is promoted, and the insertion operation of the binding tool in the second aspect is smoothly performed. Thus, the effect of claim 2 is promoted.

  1 to 2 show an embodiment of a wire harness assembling method and an assembling structure according to the present invention.

  The wire harness 1 is fixed in advance to a sheet-like or mat-like base (conveying base or assembly base) 2 such as a floor carpet or room partition for a vehicle with a binding band (binding tool) 3, and can be stored and transported in that state. In this state, that is, with the wire harness 1 fixed to the base 2, the assembly to the vehicle (assembly) is performed.

  The base 2 is preferably in the form of a sheet or mat and has flexibility or softness. The base 2 having a panel-like solidity can be used, but it has flexibility because there is a concern that the wire harness 1 or the base 2 may be damaged due to rubbing due to vibration during transportation. Is the best. The wire harness 1 is preferably fixed to the base 2 in a vehicle mounting form, that is, a shape when assembled to the vehicle.

  The base 2 is provided in advance with at least a pair of rectangular holes 4 through which the band 3 is inserted. A plurality of pairs of hole portions 4 are provided according to the length and shape of the wire harness 1 and the length and area of the base 2, and the long wire harness 1 and the wire harness having a branching portion are fixed to the base 2 with a binding band 3 at a plurality of locations. It is preferred that

  The wire harness 1 is formed by winding a plurality of electric wires 1a with a vinyl tape 5 or a band (not shown) (not shown) and binding them, or covering them with a synthetic resin protective tube (not shown) to separate the wires 1a. It is configured to prevent injury. A binding band 3 for fixing the wire harness 1 to the base 2 is one of the binding means for these wire harnesses.

  In FIG. 1, the wire harness 1 is depicted as being cut halfway, but in reality, a connector is provided at the end of the wire harness 1 as shown in the conventional example. The connector includes a connector housing made of synthetic resin and terminals connected to the electric wires and accommodated in the connector housing. Also, the base 2 in FIG. 1 is actually a larger area, and a part of it is drawn. It is also possible to fix a plurality of wire harnesses 1 to a single base 2 with a plurality of binding bands 3.

  The wire harness 1 is fixed to the base 2 with a binding band 3 in, for example, a wire harness manufacturing process or a subsequent process. Then, the wire harness assembly 6 composed of the wire harness 1, the base 2, and the binding band 3 is temporarily stored in a warehouse or the like, or is immediately transported to the vehicle assembly process by a transportation means such as a truck without being stored. The

  The wire harness assembly 6 is packed by a simple means such as a wide pallet or vinyl packing used when the floor carpet (base) 2 is transported. Alternatively, storage and transportation can be performed in a form (packing form) in which the flexible base 2 is wound together with the wire harness 2.

  In the vehicle assembly process, for example, the floor carpet (base) 2 is laid on the floor of the vehicle, and simultaneously with the laying, the wire harness 1 of the floor carpet 2 is routed on the floor and acts as a floor wire harness. For example, in the case of a wire harness assembly 6 in which the wire harness 1 is fixed to the flexible ceiling (base) 2 made of urethane or the like with the binding band 3, the wire is simultaneously fixed to the roof of the vehicle. The harness 1 is routed on the roof and functions as a roof wire harness.

  As shown in FIG. 2, the binding band 3 is inserted into the pair of holes 4 of the base 2, and the wire harness 1 is fixed to the base 2 with the binding band 3.

  The binding band 3 is formed of a synthetic resin, and is an existing one composed of a band-shaped band main body 3a and a rectangular frame-shaped locking portion 3b formed integrally with the base end of the band main body 3a. A serrated projection (not shown) is provided in a long range on the surface of the band body 3a, and a flexible engagement that engages with the serrated projection in the band insertion hole of the frame-shaped locking portion 3b. A pawl (not shown) protrudes.

  By inserting the band main body 3a into the locking portion 3b and pulling the tip of the band main body 3a, the inclined surface of the serrated protrusion moves over the locking claw, and the wire harness 1 is tightened by the band main body 3a. In this state, the locking claw comes into contact with and engages with the vertical locking surface of the sawtooth-shaped protrusion, and the return of the band body 3a is prevented. It is preferable that the extra length portion on the distal end side of the band main body 3a is cut. The configuration of the binding band 3 is merely an example, and it is of course possible to use a binding band having a different configuration.

  As shown in FIG. 2, when the distance L between the pair of holes 4 and the outer diameter D1 of the wire harness 1 are substantially equal, the base portion 2a is not greatly deformed between the pair of holes 4, and the surface is clean and flat. The form is maintained.

  However, as shown in FIG. 3, when the outer diameter D2 of the wire harness 1 ′ is smaller than the distance between the pair of holes 4, the base portion 2a is located between the pair of holes 4 when the binding band 3 is tightened. The base 2 is deteriorated in flatness due to bending and wrinkling and bulging in the thickness direction.

  Therefore, as shown in FIG. 4, a notch 7 is provided in the base 2 between the pair of holes 4 (inside the pair of holes 4), and the notch 7 is formed between the inner end 4 a of each hole 4 and between the pair of holes. As shown in FIG. 5, when the small-sized wire harness 1 ′ is tightened with the binding band 3, the wrinkles of the base 2 and the protrusions associated therewith are prevented. The base 2 is securely arranged and fixed in a clean shape.

  The length of each cut 7 is preferably set such that the length of the base portion 2a between the pair of cuts 7 is equal to or smaller than the outer diameter of the wire harness 1 '. Each cut 7 is preferably formed so as to be orthogonal to the longitudinal center of the rectangular hole 4.

  Further, as shown in FIG. 6, when the outer diameter of the wire harness 1 "is extremely larger than the distance between the pair of holes 4 of the base 2, it is difficult to insert the binding band 3 into the hole 4, and the tightened binding The band 3 is easily loosened by the slack 3c between the pair of holes.

  Therefore, in this case, as shown in FIG. 7, a first (main) cut 8 is provided outside the pair of holes 4 of the base 2, or a second (sub) cut orthogonal to the first cut 8. It is effective to provide the notches 9. The first notch 8 is formed to be long and perpendicular to the outer end 4 b of the hole 4, and the second notch 9 is provided in parallel with both sides of the first notch 8 in parallel. Even if only the first cut 8 is provided, it is effective. If the second cut 9 is provided, the openability of the cut is further improved. It is also effective to apply the second cut 9 to the cut 7 in FIG.

  As shown in FIG. 8, the notches 8, 9 can be expanded to allow the binding band 3 to be inserted into the hole 4 from the notch 8, so that the binding band 3 can be easily inserted, and at the time of tightening Since the binding band 3 bends with a smooth curve from the wire harness 1 "to the hole 4, the binding band 3 does not loosen.

  The length of the first cut 8 is a minimum length that allows the binding band 3 to be easily inserted into the hole 4 in principle, but as a guideline, the distance between the terminal ends 8a of the pair of cuts 8 Is preferably about the same length as the outer diameter of the wire harness 1 ″.

  Note that the notches 7 to 9 in FIGS. 4 to 8 may be slits having a gap. The cuts 7 to 9 can be easily provided on the soft or flexible base 2 with scissors or cutters.

  In the above embodiment, the synthetic resin binding band 3 is used as the binding tool. However, a rubber binding band (not shown) is used, or a flexible covered metal wire is used instead of the binding band 3. It is also possible.

It is a perspective view which shows one Embodiment of the assembly method and assembly structure of the wire harness which concern on this invention. It is AA sectional drawing of FIG. 1 which shows the assembly | attachment state of a wire harness. It is sectional drawing which shows a state in case a wire harness is a small diameter. It is a perspective view which shows one form of the base corresponding to a small diameter wire harness. It is sectional drawing which similarly shows the assembly | attachment state of a small diameter wire harness. It is sectional drawing which shows a state in case a wire harness is a large diameter. It is a perspective view which shows one form of the base corresponding to a large diameter wire harness. It is sectional drawing which similarly shows the assembly | attachment state of a large diameter wire harness. It is a perspective view which shows one form of the assembly | attachment method of the conventional wire harness.

Explanation of symbols

1, 1 ', 1 "wire harness 2 base 3 binding band (binding tool)
4 hole portion 4a inner end 4b outer end 7 notch 8 notch 9 second notch L interval D2 outer diameter

Claims (3)

A sheet-like or mat-like base is provided with at least a pair of holes through which the binding tool is inserted, the binding tool is inserted through the pair of holes, the wire harness is fixed to the base with the binding tool, and the wire harness is in assembly structure of the assembly can and the wire harness to the base each assembly, the pair of spacing of the holes is much larger than the outer diameter of the wire harness, the said base between said pair of holes An assembly structure for a wire harness , wherein a notch is provided from an inner end of the hole , and the binding tool enters the notch from the hole when the binding tool is tightened . At least a pair of holes through which the binding tool is inserted are provided in a sheet-like or mat-shaped base, the binding tool is inserted through the pair of holes, and the wire harness is fixed to the base with the binding tool. in assembly structure of the assembly can and the wire harness to the base each assembly, the outer diameter of the wire harness than the distance between the pair of holes is rather large, the base from the outer end of the pair of holes An assembly structure of a wire harness , wherein a notch is provided, and the binding tool enters the hole from the notch when the binding tool is tightened .   The assembly structure of the wire harness according to claim 1 or 2, wherein a second cut perpendicular to the cut is provided.

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