JP2019146447A - Wire harness - Google Patents

Abstract

To provide a wire harness that is allowed to smoothly follow opening and closing of a door while being suppressed from being enlarged in size.SOLUTION: A wire harness 10 comprises: a wiring material 30 which is wired between a body and a luggage door which move relatively; an extra length absorbing part 40 that stores an extra length part of a harness part 10A at the body side of the wiring material 30 that is generated by relative movement of the body and the luggage door and allows the extra length to be taken in and out; a connector 33 fixed to an end part of the harness part 10A at the body side pulled out from the extra length absorbing part 40; and an exterior tube 35 that can be stretched in a longitudinal direction, which covers an outer periphery of the wiring material 30 pulled out from the extra length absorbing part 40, between the connector 33 and the extra length absorbing part 40.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a wire harness.

  As a wire harness routed between the body of the car and the luggage door, an extra wire length storage case is provided between the luggage arm and the luggage room body panel, and the excess wire length generated when the luggage door is closed. One that is bent into a U-shape and accommodated in a wire excess length accommodation case is known (see, for example, Patent Document 1).

Japanese Patent Laying-Open No. 2015-96348

  By the way, when the extra length part of the wire is drawn into the extra cable length storage case, if foreign matter such as dust or dust attached to the extra cable length is drawn into the extra cable length case, malfunctions such as malfunctions may occur. May occur. In this case, by covering the entire extra length portion of the electric wire extra length housing case and the drawn electric wire with a cover, it is possible to suppress foreign objects from being drawn into the extra wire length accommodation case, but this leads to an increase in the size of the wire harness. End up.

  This invention is made | formed in view of the situation mentioned above, The objective is to provide the wire harness which can be made to follow smoothly with respect to opening and closing of a door, suppressing enlargement.

In order to achieve the above-described object, the wire harness according to the present invention is characterized by the following (1) to (4).
(1)
A routing material routed between structures that move relative to each other;
While accommodating the surplus length portion of the routing material generated by the relative movement of the structure, surplus length absorption portion into which the surplus length portion is taken in and out,
A fixing portion to which an end portion of the wiring material drawn out from the surplus length absorbing portion is fixed;
An outer tube that can extend and contract in the longitudinal direction covering the outer periphery of the routing material drawn from the surplus length absorbing portion between the fixed portion and the surplus length absorbing portion;
Comprising
Be a wire harness.
(2)
In the wire harness described in (1) above,
The outer tube has one end fixed to the fixing portion and the other end fixed to the surplus length absorbing portion.
Be a wire harness.
(3)
In the wire harness described in the above (1) or (2),
The outer tube is composed of a braided tube knitted with resin yarn,
Be a wire harness.
(4)
In the wire harness according to any one of (1) to (3) above,
The wiring material is a flat wiring material having a flat shape in cross section.
Be a wire harness.

  According to the wire harness having the configuration (1), the outer periphery of the routing material drawn out from the surplus length absorbing portion is covered with the outer tube that can be expanded and contracted in the longitudinal direction. Therefore, when routing material is taken in and out of the surplus length absorbing portion, foreign matter such as dust and dust is prevented from being drawn into the surplus length absorbing portion together with the routing material, and malfunctions such as malfunction can be suppressed. it can. In addition, it suppresses the increase in size compared to the structure in which the entire length of the surplus length absorbing portion and the routing material drawn out from the surplus length absorbing portion is covered with a cover or the structure in which the exterior tube is pulled into the surplus length absorbing portion. Can do. Moreover, when the structure moves relatively, the extensible outer tube smoothly follows and expands and contracts. Thereby, structures can be smoothly moved relative to each other.

  According to the wire harness having the configuration (2), one end of the outer tube is fixed to the fixing portion to which the routing material is fixed, and the other end of the outer tube is fixed to the surplus length absorbing portion. Intrusion of foreign matter such as dust and dust from the end of the can be suppressed.

  According to the wire harness having the configuration (3), since the outer tube is formed of a braided tube knitted with resin yarn, it is possible to suppress entry of foreign matter into the surplus length absorbing portion while suppressing bulkiness of weight.

  According to the wire harness having the configuration (4), the routing material is a flat type routing material, and therefore the bending direction is the plane direction. Therefore, the exterior tube can be caused to smoothly follow the bending of the routing material and deformed.

  ADVANTAGE OF THE INVENTION According to this invention, the wire harness which can be made to follow smoothly with respect to opening and closing of a door, suppressing an enlargement can be provided.

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

FIG. 1 is a side view of an opening / closing mechanism when a luggage door for explaining a wire harness according to the present embodiment is in a fully closed state. FIG. 2 is a side view of the opening / closing mechanism when the luggage door for explaining the wire harness according to the present embodiment is in a fully opened state. FIG. 3 is a perspective view of the opening / closing mechanism and the wire harness when the luggage door is fully closed. FIG. 4 is a cross-sectional view of the luggage arm with the arm cover attached. FIG. 5 is an exploded perspective view of the wire harness. 6A and 6B are diagrams showing the movement of the wire harness when the luggage door is opened and closed. FIG. 6A is a schematic side view when the luggage door is fully opened, and FIG. 6B is a schematic side view when the luggage door is fully closed. It is.

  Specific embodiments relating to the present invention will be described below with reference to the drawings.

  FIG. 1 is a side view of an opening / closing mechanism when a luggage door for explaining a wire harness according to the present embodiment is in a fully closed state. FIG. 2 is a side view of the opening / closing mechanism when the luggage door for explaining the wire harness according to the present embodiment is in a fully opened state.

  As shown in FIG.1 and FIG.2, the wire harness 10 which concerns on this embodiment is routed between the structures which move relatively. Here, a case where the wire harness 10 is routed between a vehicle body (structure) 11 and a luggage door (structure) 12 that opens and closes the luggage of the vehicle will be described as an example.

  The body 11 and the luggage door 12 are connected by an opening / closing mechanism 13. The wire harness 10 is routed along the opening / closing mechanism 13. An arm cover 20 is assembled to the opening / closing mechanism 13, and the wire harness 10 is covered and protected by the arm cover 20. The luggage door 12 is supported by the opening / closing mechanism 13 so as to be rotatable with respect to the body 11. Accordingly, the luggage door 12 is moved between a closed state where the luggage is closed as shown in FIG. 1 and an open state where the luggage is opened as shown in FIG.

  FIG. 3 is a perspective view of the opening / closing mechanism 13 and the wire harness 10 when the luggage door is fully closed.

  As shown in FIG. 3, the opening / closing mechanism 13 includes a bracket 15 and a luggage arm 16. The bracket 15 is fixed to the body 11. The luggage arm 16 has a curved portion 17 curved in a U shape. The luggage arm 16 has a connecting portion 18 that is rotatably supported with respect to the bracket 15 on one end side, and is disposed on the lower side of the bracket 15 so that the bending portion 17 bulges downward. The luggage arm 16 has a fixing portion 19 on the other end side, and the fixing portion 19 is fixed to the lower surface side of the luggage door 12. An upper back panel 14 provided on the vehicle body 11 is fixed to the upper surface of the bracket 15 constituting the opening / closing mechanism 13 (see FIGS. 1 and 2). In the opening / closing mechanism 13, when the luggage door 12 is opened and closed, the luggage arm 16 rotates around the connection point with the bracket 15.

  An arm cover 20 is attached to the luggage arm 16 of the opening / closing mechanism 13, and the arm cover 20 is provided from the fixed portion 19 to the curved portion 17 in the luggage arm 16.

  The arm cover 20 is integrally formed of, for example, resin or the like, and includes a storage portion 21 and an arm mounting portion 22.

  The accommodating portion 21 is provided at the end of the arm mounting portion 22. The accommodating part 21 is formed in a box shape, and is formed so as to protrude to one side with respect to the arm mounting part 22. An accommodation space S is formed inside the accommodation portion 21, and an extra length absorbing portion 40 described later is fitted into the accommodation space S and accommodated.

  The arm mounting portion 22 is formed in a shape along the fixed portion 19 and the curved portion 17 of the luggage arm 16 and is mounted so as to be fitted to the luggage arm 16 from below. The wire harness 10 is routed along the luggage arm 16 and is held by the arm attachment portion 22 of the arm cover 20 attached to the luggage arm 16.

  FIG. 4 is a cross-sectional view of the luggage arm 16 to which the arm cover 20 is attached. As shown in FIG. 4, the arm mounting portion 22 of the arm cover 20 includes a bottom plate portion 26 disposed along the lower portion of the luggage arm 16 and side plate portions 27 extending upward from both side edges of the bottom plate portion 26. Have.

  The wire harness 10 is composed of a flat type wiring member 30 having a plurality of conductors 31 and has a forming and retaining property. The wire harness 10 is, for example, a flexible flat cable (FFC) in which conductors 31 arranged in parallel are integrated with a coating 32 made of resin. The wire harness 10 is accommodated between the lower surface of the luggage arm 16 and the bottom plate portion 26 of the arm mounting portion 22 of the arm cover 20.

  FIG. 5 is an exploded perspective view of the wire harness 10. As shown in FIG. 5, one end side of the wire harness 10 is connected and fixed to a connector (fixed portion) 33. The connector 33 is a connector connected to a power supply side connector (not shown) provided on the body 11 side. Further, the other end side of the wire harness 10 is connected to an electrical component such as a tail lamp provided on the luggage door 12, thereby enabling power supply to the electrical component.

  The wire harness 10 is provided with a surplus length absorbing portion 40 near one end on the body 11 side. A body-side harness portion 10 </ b> A that is a portion of the wire harness 10 on the body 11 side is put in and out of the surplus length absorbing portion 40.

  The body side harness portion 10 </ b> A is covered with an outer tube 35. The outer tube 35 is a braided tube formed into a tubular shape by knitting yarn made of resin such as polyamide, polyester, polyethylene terephthalate, and the like, and is a tube that can be expanded and contracted in the longitudinal direction. The outer tube 35 is expanded while being reduced in diameter by pulling both ends, and is compressed while being expanded in diameter by bringing both ends closer.

  One end 35 a of the outer tube 35 is fixed to the connector 33. Further, the other end 35 b of the outer tube 35 is fixed to the surplus length absorbing portion 40. Thereby, the outer periphery of the body side harness portion 10 </ b> A is covered with the outer tube 35 without a gap. Various fixing methods such as adhesive fixing with an adhesive or binding fixing with a fixing member such as a binding band are applied to fixing the one end 35a of the outer tube 35 to the connector 33 and fixing the other end 35b to the extra length absorbing portion 40. Is done.

  In the wire harness 10, the door-side harness portion 10 </ b> B that is a portion of the routing material 30 on the luggage door 12 side is accommodated between the lower surface of the luggage arm 16 and the bottom plate portion 26 of the arm mounting portion 22 of the arm cover 20.

  The surplus length absorber 40 includes a case 41 and a support shaft 46. The case 41 has divided cases 42 and 43 divided into left and right, and these divided cases 42 and 43 constitute a case 41 by being assembled with each other. One split case 42 is formed with a holding groove 44, and the other split case 43 is formed with an outlet 45.

  The support shaft 46 is disposed in the case 41, and the routing material 30 is attached to the support shaft 46. The routing member 30 attached to the support shaft 46 is held by the door-side harness portion 10 </ b> B being inserted into the holding groove 44 and pulled out of the case 41. Further, the body side harness portion 10 </ b> A of the routing member 30 is drawn out from the outlet 45. The body side harness portion 10A is accommodated in the surplus length absorbing portion 40 in a preset shape with the luggage door 12 closed. Specifically, the body side harness portion 10A of the routing member 30 is accommodated in the surplus length absorbing portion 40 in a shape wound spirally around the support shaft 46 with the luggage door 12 closed.

  Next, the movement of the wire harness 10 when the luggage door 12 is opened and closed will be described. 6A and 6B are diagrams illustrating the movement of the wire harness 10 when the luggage door 12 is opened and closed. FIG. 6A is a schematic side view when the luggage door 12 is fully opened, and FIG. 6B is a diagram when the luggage door 12 is fully closed. FIG.

  When the luggage door 12 is opened from the fully closed state (the state shown in FIG. 1) in which the luggage door 12 is closed, the luggage arm 16 rotates around the connection point with the bracket 15 and the arm cover attached to the luggage arm 16 20 moves together with the luggage arm 16 (state shown in FIG. 2). Thereby, the surplus length absorbing portion 40 accommodated in the accommodating portion 21 of the arm cover 20 moves together with the arm cover 20 and is separated from the body 11. Then, the body-side harness portion 10 </ b> A accommodated so as to be wound around the support shaft 46 in the surplus length absorbing portion 40 is pulled out from the surplus length absorbing portion 40.

  At this time, as shown in FIG. 6A, the connectors 33 and the outlet 45 of the extra length absorbing portion 40 are separated from each other, so that both ends 35a and 35b of the outer tube 35 covering the periphery of the body side harness portion 10A are It is pulled and extended in a state of covering the body side harness portion 10A. Thereby, the body side harness portion 10 </ b> A is maintained in a state of being covered by the outer tube 35 even when pulled out from the surplus length absorbing portion 40.

  When the luggage door 12 is closed from the fully opened state (the state shown in FIG. 2) in which the luggage door 12 is opened, the luggage arm 16 rotates around the connection point with the bracket 15 in the opposite direction to the opening operation, and the luggage arm 16 is moved. The attached arm cover 20 moves together with the luggage arm 16 (state shown in FIG. 1). Thereby, the surplus length absorbing portion 40 accommodated in the accommodating portion 21 of the arm cover 20 moves together with the arm cover 20 and is brought close to the body 11. Then, a surplus length is generated in the body side harness portion 10 </ b> A that has been drawn out from the surplus length absorbing portion 40, and the surplus length absorbing portion 40 closes to the body 11 when the surplus length absorbing portion 40 approaches the body 11. It is pushed into the long absorption part 40. At this time, the wiring material 30 having the formation holding property is pushed into the surplus length absorbing portion 40 to be in an initial shape wound around the support shaft 46. Thereby, the body side harness part 10A of the routing material 30 will be drawn in and accommodated in the surplus length absorption part 40, without producing slack.

  At this time, as shown in FIG. 6B, the connectors 33 and the outlet 45 of the extra length absorbing portion 40 are close to each other, so that both ends 35a and 35b of the outer tube 35 covering the periphery of the body side harness portion 10A are It approaches and is compressed in the state which covered body side harness part 10A. As a result, the body-side harness portion 10A is maintained in a state where the portion pulled out from the surplus length absorbing portion 40 is covered with the exterior tube 35.

  As described above, according to the wire harness 10 according to the present embodiment, the outer tube 35 in which the outer periphery of the body-side harness portion 10A of the routing material 30 drawn from the surplus length absorbing portion 40 can be expanded and contracted in the longitudinal direction. Covered by. Therefore, when the body side harness part 10A of the routing material 30 is taken in and out of the surplus length absorption part 40, foreign matter such as dust and dust is prevented from being drawn into the surplus length absorption part 40 together with the body side harness part 10A. Thus, malfunctions such as malfunction can be suppressed. Further, the extra length absorber 40 and the outer tube 35 together with the body side harness portion 10 </ b> A of the routing member 30 and the structure covering the entire body side harness portion 10 </ b> A drawn from the extra length absorber 40 and the extra length absorber 40 are provided. Compared to a structure that can be pulled into, the increase in size can be suppressed. Moreover, when the body 11 and the luggage door 12 move relative to each other, the extensible outer tube 35 smoothly follows and expands and contracts. Thereby, the luggage door 12 can be smoothly opened and closed with respect to the body 11.

  In addition, since one end 35a of the outer tube 35 is fixed to the connector 33 to which the body side harness portion 10A of the routing member 30 is fixed, and the other end 35b of the outer tube 35 is fixed to the surplus length absorbing portion 40, Intrusion of foreign matter such as dust and dust from the end of the tube 35 can be suppressed.

  And since the exterior tube 35 consists of a braided tube which knit the resin-made thread | yarn, the penetration | invasion of the foreign material to the surplus length absorption part 40 can be suppressed, suppressing the bulkiness of a weight.

  Moreover, since the routing material 30 consists of a flat type routing material, a curve direction turns into a surface direction. Therefore, the exterior tube 35 can be smoothly followed and deformed with respect to the bending of the body side harness portion 10A of the routing member 30.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, 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.

  For example, in the said embodiment, although the case where the wire harness 10 was routed between the body 11 and the luggage door 12 opened and closed with respect to the body 11 was illustrated and demonstrated, the wiring location of the wire harness 10 is What is necessary is just to be between structures which move relatively. As a wiring location of the wire harness 10, for example, it may be between the floor of the vehicle and a seat that slides with respect to the floor.

  Moreover, in the said embodiment, although the case where the body side harness part 10A of the routing material 30 which has shape retainability was accommodated in the surplus length absorption part 40 by becoming an initial shape, as the routing material 30 is shown. There may not be shape retention. In this case, for example, the body side harness portion 10A is preferably drawn into the surplus length absorbing portion 40 by a biasing member such as a spring.

Here, the features of the wire harness according to the embodiment of the present invention described above are briefly summarized and listed in the following (1) to (4), respectively.
(1)
A routing material (30) routed between the relatively moving structures (body 11, luggage door 12);
While accommodating the surplus length part (body side harness part 10A) of the routing material (30) produced by relative movement of the structure (body 11, luggage door 12), the surplus length part (body side harness part 10A) Extra length absorption part (40) to be taken in and out;
A fixed portion (connector 33) to which an end portion of the routing material (body-side harness portion 10A) pulled out from the surplus length absorbing portion (40) is fixed;
In the longitudinal direction covering the outer periphery of the routing member (body-side harness portion 10A) drawn from the surplus length absorbing portion (40) between the fixed portion (connector 33) and the surplus length absorbing portion (40). An extendable outer tube (35);
Comprising
Wire harness.
(2)
In the wire harness described in (1) above,
The outer tube (35) has one end (35a) fixed to the fixing portion (connector 33) and the other end (35b) fixed to the extra length absorbing portion (40).
Wire harness.
(3)
In the wire harness described in the above (1) or (2),
The outer tube (35) is composed of a braided tube knitted with resin yarn,
Wire harness.
(4)
In the wire harness according to any one of (1) to (3) above,
The wiring material (30) is a flat wiring material having a flat shape in cross section.
Wire harness.

10 Wire harness 11 Body (Structure)
10A Body side harness part (extra length part)
12 Luggage door (structure)
30 Routing material 33 Connector (fixed part)
35 exterior tube 35a one end 35b other end 40 extra length absorption part

Claims (4)

A routing material routed between structures that move relative to each other;
While accommodating the surplus length portion of the routing material generated by the relative movement of the structure, surplus length absorption portion into which the surplus length portion is taken in and out,
A fixing portion to which an end portion of the wiring material drawn out from the surplus length absorbing portion is fixed;
An outer tube that can extend and contract in the longitudinal direction covering the outer periphery of the routing material drawn from the surplus length absorbing portion between the fixed portion and the surplus length absorbing portion;
Comprising
Wire harness. The wire harness according to claim 1,
The outer tube has one end fixed to the fixing portion and the other end fixed to the surplus length absorbing portion.
Wire harness. In the wire harness according to claim 1 or 2,
The outer tube is composed of a braided tube knitted with resin yarn,
Wire harness. In the wire harness as described in any one of Claims 1-3,
The wiring material is a flat wiring material having a flat shape in cross section.
Wire harness.

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