JP5052032B2 - Wiring harness wiring structure - Google Patents

Description

  The present invention relates to a wiring structure for a wire harness that is wired across a fixed structure such as a vehicle body of an automobile and a movable structure such as a slide seat and a slide door that are movably assembled to the vehicle body. .

  The slide seat and the slide door are parts having a relatively large amount of slide movement with respect to the vehicle body. In order to equip such parts with electrical components, it is necessary to route the wire harness across the vehicle body, but there is a difficulty in the capacity of the wire harness. For example, slide doors used in popular one-box cars in recent years have a large amount of sliding movement, and as a result of the sliding movement of the sliding door, an extra length is generated in the wire harness, and the foot is caught in the slack of the wire harness. Problems can arise.

  In view of this, a wiring structure of a wire harness in which a surplus length absorbing mechanism is provided in a wire harness that is routed between a slide door and a vehicle body has been proposed (for example, see Patent Document 1).

  As shown in FIG. 7, the wire harness routing structure disclosed in Patent Literature 1 is a routing configuration of a wire harness 101 that is routed across the vehicle body 105 and the slide door 100. The wire harness 101 is connected to the vehicle body 105 and the slide door 100 by two connectors 103 and 104 provided at both ends thereof.

  In FIG. 7, the sliding door 100 is in a closed state, and an extra length is generated in the wire harness 101 as the sliding door 100 opens. Here, the elastic member 102 urges the inner edge of the wire harness 101 that is curved so as to protrude upward to prevent the wire harness 101 from slackening, that is, to absorb the extra length. ing.

JP 2001-359232 A

  Here, in the wiring structure of the wire harness disclosed in Patent Document 1, the elastic member 102 is attached to the intermediate portion in the longitudinal direction of the wire harness 101 and is a separate component from the connectors 103 and 104 at one end near the connector 104. It is being fixed to the slide door 100 by the fixing means 106 which is. The connectors 103 and 104 are connected and fixed to the vehicle body 105 or the slide door 100, respectively.

  Therefore, in the assembly process on the production line, an operation of fixing the elastic member 102 to the slide door 100 by the fixing means 106 and an operation of fixing the connectors 103 and 104 to the vehicle body 105 or the slide door 100 are necessary. Inferior to sex.

  In general, the wire harness 101 is routed with a little slack in the routing route from the fixing means 106 to the connector 104 which are independent from each other, but this requires an extra length of the wire harness and saves space. It is difficult to plan.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a wire harness wiring structure that spans a fixed structure and a movable structure. An object of the present invention is to provide a wiring structure of a wire harness capable of improving workability and saving space.

  The above object is achieved by the following wiring harness wiring structure (1) to (3) according to the present invention.

(1) A wiring structure of a wire harness that is wired across a fixed structure and a movable structure that is movably assembled to the fixed structure,
One end of the wire harness is connected to the fixed structure,
A connector for connecting to the movable structure is provided at the other end of the wire harness, and an extra length absorbing mechanism is attached to an end of the wire harness provided with the connector,
The surplus length absorbing mechanism supports the protector rotatably about a protector that holds the wire harness in a bent state and a portion of the protector that holds a portion connected to the connector from the bent portion of the wire harness. Including, and
The base and the connector are integrally molded,
The wire harness routing structure , wherein the extra length absorbing mechanism is attached to the movable structure by connecting the connector to the movable structure.

  According to the wiring structure of the wire harness described in the above (1), the surplus length absorbing mechanism is attached to the end portion of the wire harness provided with the connector that is connected to the movable structure. It is integrated with the connector. Therefore, by connecting the connector to the movable structure, the surplus length absorbing mechanism can be fixed to the movable structure, and the workability in the assembly process can be improved. Furthermore, it is not necessary to make the wire harness slack between the portion where the surplus length absorbing mechanism is mounted and the connector, and space can be saved.

Moreover, according to the wiring structure of the wire harness described in the above (1) , the surplus length absorbing mechanism holds the protector that holds the wire harness in a bent state, and the portion that continues from the bent portion of the wire harness to the connector. And a base that rotatably supports the protector with the protector portion as an axis, and is pushed or pulled by the wire harness with the movement of the movable structure so that the connection to the fixed structure can be performed. The protector rotates so that the direction in which the wire harness is drawn is directed toward or away from the connection location. Thereby, a connection location with a fixed structure and an extra length absorption mechanism can be connected with a shorter wire harness, and further space saving can be achieved.

Further , according to the wiring structure of the wire harness described in the above (1), the base of the surplus length absorbing mechanism and the connector are integrally formed, so that when the surplus length absorbing mechanism and the connector are integrated, both sets Work such as attaching is not required, and workability in the assembly process can be further improved.

  ADVANTAGE OF THE INVENTION According to this invention, in the wiring structure of a wire harness which wires a wiring harness ranging over a fixed structure and a movable structure, it can aim at the improvement of workability | operativity in an assembly process, and can attain space saving. .

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a right side view showing an embodiment of a wiring harness wiring structure according to the present invention and an example of application to a slide sheet, and FIG. 2 is a schematic diagram of a surplus length absorbing mechanism used in the wiring structure shown in FIG. FIG. 3 is an external perspective view showing the first stage of the assembly process of the routing structure shown in FIG. 1, and FIG. 4 is an external perspective view showing the second stage of the assembly process of the routing structure shown in FIG. 5 is an external perspective view showing a third stage of the assembly process of the routing structure shown in FIG. 1, and FIG. 6 is a right side view for explaining the operation of the extra length absorbing mechanism used in the routing structure shown in FIG. .

  The wiring structure of the wire harness according to the present embodiment is routed across a vehicle body (fixed structure) of an automobile and a slide seat (movable structure) 10 that is slidably mounted on the vehicle body. This is a wiring structure of a wire harness.

  As shown in FIGS. 1 to 3, the slide seat 10 to which the wiring structure of the wire harness is applied is slidably moved in the front-rear direction on a pair of guide rails 12 fixed to the floor of the vehicle. The sheet body 11 is included.

  Sliders (not shown) are respectively attached to both side edges of the bottom surface of the seat body 11, and these sliders are engaged with the corresponding guide rails 12. Then, the slider is guided along the guide rail 12, and the seat body 11 slides back and forth.

  The seat body 11 is equipped with functions such as electric reclining and electric slide, and a device 13 which is a control circuit for driving them is mounted. The device 13 has a plurality of screw holes 16 on the periphery of the casing, and is fastened to the side portion of the sheet body 11 by bolts 30 (see FIG. 5) that pass through these screw holes 16. In order to supply electric power to the device 13, the wire harnesses 14 and 15 are routed across the vehicle body and the slide seat 10.

  The wire harness 14 is a seat wire harness extending from the seat body 11, and one end of the wire harness 14 is connected to a floor wire harness 15 arranged on the floor via connectors 18 and 19 and fixed to the floor. A connector 17 that connects to the device 13 is provided at the other end of the seat wire harness 14.

  A surplus length absorbing mechanism 20 is attached to an end portion of the seat wire harness 14 provided with the connector 17. The surplus length absorbing mechanism 20 can rotate the protector 23 around the protector 23 that holds the seat harness 14 in a bent state and the portion 24 of the protector 23 that holds the portion that connects the bent portion of the seat wire harness 14 to the connector 17. And a base 21 for supporting.

  The base 21 is made of, for example, a synthetic resin and has a substantially rectangular shape when viewed from the side. The base 21 is formed such that one end in the longitudinal direction is thick and the other end is thin. A shaft hole 27 through which a portion 24 (hereinafter referred to as a shaft portion) 24 serving as the shaft of the protector 23 is inserted is formed at the end portion of the base 21 that is made thick.

  The shaft portion 24 of the protector 23 is formed in a cylindrical shape having a C-shaped cross section. The seat wire harness 14 is accommodated therein, and is inserted through the shaft hole 27 of the base 21 and is pivotally supported by the shaft wire. . A flange 25 is formed at the tip of the shaft portion 24, and the shaft portion 24 is secured from the shaft hole 27 by engaging the flange 25 with the edge of the shaft hole 27 of the base 21.

  An arm portion 25 that extends in a direction substantially orthogonal to the axial direction of the shaft portion 24 is connected to the base end of the shaft portion 24. The arm portion 25 is formed in a cylindrical shape having a U-shaped cross section, and accommodates the seat wire harness 14 therein. The seat wire harness 14 is bent into a substantially L shape, passes through the shaft portion 24 and the arm portion 25 of the protector 23, and is pulled out from the tip of the arm portion 25 to a connection location with the floor wire harness 15. In addition, between the connection parts of the arm part 25 and the floor wire harness 15, the seat wire harness 14 may be provided with an exterior material 28 such as a corrugated tube in order to increase its rigidity.

  A pair of locking claws 22 is formed at the end of the thinned base 21. The connector 17 of the seat wire harness 14 is locked by these locking claws 22 so that the base 21 and the connector 17 are integrated.

  Next, an example of the assembly process of the wiring structure of the wire harness will be described with reference to FIGS.

  As shown in FIG. 3, the connector 17 of the seat wire harness 14 is locked by a set of locking claws 22 of the base 21, and the surplus length absorbing mechanism 20 and the connector 17 are assembled together. Next, as shown in FIG. 4, the connector 17 integrated with the surplus length absorbing mechanism 20 is connected to the connector 29 of the device 13, and the connector 17 and the surplus length absorbing mechanism 20 are fixed to the device 13. Next, as shown in FIG. 5, the device 13 to which the connector 17 and the extra length absorbing mechanism 20 are fixed is fastened to the side portion of the sheet main body 11 and fixed thereto. In this way, the surplus length absorbing mechanism 20 is fixed to the slide sheet 10 via the integrated connector 17. Then, the slide seat 10 is installed at a predetermined position on the floor, and the seat wire harness 14 is connected to the floor wire harness 15. A cover (not shown) is further attached to the side portion of the sheet body 11 after the device 13 is fastened, and the device 13, the connector 17, and the extra length absorbing mechanism 20 are covered with the cover.

Next, with reference to FIG.1 and FIG.6, the effect | action of the surplus length absorption mechanism 20 is demonstrated.
FIG. 1 shows a state where the sheet main body 11 is in the most retracted position, and FIG. 6 shows a state where the sheet main body 11 is in the most advanced position.

  In the state shown in FIG. 1, the connector 18, which is a connection portion of the seat wire harness 14 with the floor wire harness 15, is in the most distant state, and the seat wire harness 14 is connected to the connector 18 and the extra length. It extends substantially linearly with the absorption mechanism 20. At this time, the protector 23 has the tip of the arm portion 25 facing the connector 18, and the seat wire harness 14 is pulled out from the tip of the arm portion 25 toward the connector 18.

  As the seat body 11 moves forward, the connector 18 and the surplus length absorbing mechanism 20 approach each other to create a surplus length in the seat wire harness 14, and the protector 23 is pushed by the seat wire harness 14 so that the arm portion It rotates so that the front-end | tip of 25 may turn away from the connector 18 and may turn back. In the state shown in FIG. 6, the seat wire harness 14 is pulled out rearward from the tip of the arm portion 25 of the protector 23 facing rearward, and protrudes rearward between the surplus length absorbing mechanism 20 and the connector 18. It is curved in a substantially U shape so that

  As described above, according to the wiring structure of the wire harness of the present embodiment, the surplus length absorbing mechanism 20 is attached to the end portion of the seat wire harness 14 provided with the connector 17 that is connected to the slide seat 10. The extra length absorbing mechanism 20 is integrated with the connector 17. Therefore, by connecting the connector 17 to the slide sheet 10, the surplus length absorbing mechanism 20 can also be fixed to the slide sheet 10, and workability in the assembly process can be improved. Furthermore, there is no need to give the seat wire harness 14 slack between the portion where the extra length absorbing mechanism 20 is mounted and the connector 17, and space saving can be achieved.

  Moreover, according to the wiring structure of the wire harness of this embodiment, the surplus length absorbing mechanism 20 holds the protector 23 that holds the wire harness 14 in a bent state, and the portion that continues from the bent portion of the wire harness to the connector 17. A base 21 that rotatably supports the protector 23 around the portion 24 of the protector 23, and is pushed or pulled by the seat wire harness 14 that is deformed as the slide seat 10 moves, The protector 23 rotates so that the direction in which the seat wire harness 14 is pulled out to the connection point with the floor wire harness 15 is directed toward or away from the connection point. Thereby, the connection location with the floor wire harness 15 and the surplus length absorption mechanism 20 can be connected by the shorter seat wire harness 14, and further space saving can be achieved.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimension, numerical value, form, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  In the above-described embodiment, the surplus length absorbing mechanism 20 and the connector 17 are assembled together by locking the connector 17 with a set of locking claws 22 formed on the base 21 of the surplus length absorbing mechanism 20. However, if the base 21 and the connector 17 are formed integrally with a synthetic resin or the like, the extra length absorbing mechanism 20 and the connector 17 are integrated with each other, so that an assembly process is not required. It is preferable because it is possible to further improve the workability.

It is one Embodiment of the wiring structure of the wire harness of this invention, and is a right view which shows the example applied to a slide seat. It is a principal part enlarged view of the surplus length absorption mechanism used for the routing structure shown in FIG. It is an external appearance perspective view which shows the 1st step of the assembly process of the routing structure shown in FIG. It is an external appearance perspective view which shows the 2nd step of the assembly process of the routing structure shown in FIG. It is an external appearance perspective view which shows the 3rd step of the assembly process of the routing structure shown in FIG. It is a right view explaining the effect | action of the surplus length absorption mechanism used for the routing structure shown in FIG. It is the schematic of the wiring structure of the conventional wire harness.

Explanation of symbols

10 Slide sheet (movable structure)
14 Sheet wire harness 17 Connector 20 Extra length absorption mechanism 21 Base 23 Protector

Claims (1)

A wiring structure of a wire harness that is wired across a fixed structure and a movable structure that is movably assembled to the fixed structure,
One end of the wire harness is connected to the fixed structure,
A connector for connecting to the movable structure is provided at the other end of the wire harness, and an extra length absorbing mechanism is attached to the end of the wire harness provided with the connector,
The surplus length absorption mechanism rotatably supports the protector about a protector that holds the wire harness in a folded state and a portion of the protector that holds a portion connected to the connector from the bent portion of the wire harness. Including, and
The base and the connector are integrally molded,
The wire harness routing structure , wherein the extra length absorbing mechanism is attached to the movable structure by connecting the connector to the movable structure.

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