Wire harness routing structure for vehicle door sensors

Abstract

To provide an inexpensive routing structure, which is improved in sealing performance with no harm in noise insulation performance, of a wire harness of a sensor for a door of an automobile.SOLUTION: In the routing structure, a wire harness 41 of a sensor 40 which is attached to a rear door 101 of an automobile through a bracket 30 and detects a foreign matter between a front door 102 and the rear door is arranged between an inner panel 101a and an outer panel 101b through a through hole H formed in the inner panel 101a of the rear door 101. A service hole H is provided on a door side surface of the inner panel 101a.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a wire harness routing structure for a vehicle door sensor that is attached to a rear door such as a sliding door of an automobile and detects foreign objects between the front door and the rear door.

Background Art

[0002] As shown in FIG. 11, a pressure sensor 3 is attached to the front end of a sliding door (rear door) 1 of an automobile in the vertical direction so as to detect foreign objects such as a human finger sandwiched between the front door 2 (see, for example, FIG. 4 of Patent Document 1). Since the wire harness (lead wire) 4 for power supply connected to the pressure sensor 3 is attached to the outside of the vehicle of the pressure sensor 3, it penetrates through the hole 5 formed in the sliding door 1 and is drawn into the inside of the sliding door 1 (between the inner panel 1a and the outer panel 1b) and routed. Here, the hole 5 is provided in the first step portion 1a1 on the vehicle interior side adjacent to the portion (so-called hemming joint portion HM) where the front end of the outer panel 1b is bent and overlapped on the vehicle interior side of the inner panel 1a with respect to the front end portion of the inner panel 1a.

[0003] However, there is a problem that the sound insulation deteriorates when a hole 5 is formed in the sliding door 1. In addition, it is necessary to prevent water from entering the inside of the sliding door 1. In FIG. 11, the grommet 6 is attached to the hole 5 to protect the wire harness 4, but it is difficult to attach the grommet 6 to the hole 5 without a gap so that water does not enter, and if a cover member (sealing material) 7 such as a molding rubber is provided around it, the cost increases together with the addition of the grommet 6.

[0004] Also, as shown in FIG. 12, there are known techniques for routing and stably holding a wire harness (lead wire) 11 on the wire routing surface 12a of the first wall portion of a bracket 12, and for attaching and fixing a seal sponge (not shown) that has been passed through the wire harness (lead wire) 11 to the surface 14a of a holding wall portion 14 at the portion where the wire harness (lead wire) 11 is drawn out from a lead-out hole 13 (see, for example, paragraph number (0039) of Patent Document 2). However, these techniques do not involve drawing the wire harness (lead wire) 11 into the rear door.

[0005] Also, although not shown in the drawings, generally, separately from the above Patent Document 1, there is known a structure in which an opening H, which is a large hole for work for inserting and removing a mechanism (such as a rail, a drum, a wire, a motor, etc.) for raising and lowering a door glass, is provided in a door inner panel on the side surface of the door (see, for example, FIGS. 1 and 9 of Patent Document 3).

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0007] Therefore, an object of the present invention is to provide a wire harness routing structure for a vehicle door sensor that is excellent in sealing performance and particularly does not deteriorate the sound insulation performance and is inexpensive.

Means for Solving the Problems

[0008] In order to achieve the above object, the wire harness routing structure of the sensor for a vehicle door according to the present invention is mounted on a rear door (101) of an automobile via a bracket (30), and a wire harness (41) of a sensor (40) for detecting a foreign object between the front door (102) is routed between the inner panel (101a) and the outer panel (101b) of the rear door (101) through a through hole (H) formed in the inner panel (101a), the through hole (H) is provided on the door side surface of the inner panel (101a) and a service hole (H), as follows In the lower part of the rear door (101) before the wire harness (41) reaches the through hole (H) from the sensor (40), it is disposed between a bracket side part (32) extending in the front-rear direction of the rear door (101) from the bracket (30) and the inner panel (101a). A covering piece (60) that elastically contacts the front door (102) when the rear door (101) and the front door (102) are closed is provided at the lower part of the rear door (101), and a concave groove part (62) that extends in the front-rear direction of the rear door (101) and covers the bracket side part (32) from the vehicle interior side is formed in the covering piece (60). which is characterized by the above.

[0010] Further, in the present invention, the front side of the concave groove portion (62) covers the rear side of the horizontal side portion (32) of the bracket, and the rear side of the concave groove portion (62) faces the inner panel (101a) without passing through the horizontal side portion (32) of the bracket, A sponge material (70) is provided on the rear side of the concave groove portion (62) to elastically contact the wire harness (41) and seal between the inner panel (101a) and the covering piece (60), which is characterized by the above.

[0011] Further, in the present invention, a lid portion (80) for closing the opening at the rear end portion of the concave groove portion (62) is provided, which is characterized by the above.

[0012] The symbols in parentheses indicate corresponding elements or corresponding matters described in the drawings and the embodiments for carrying out the invention described later.

Effect of the Invention

[0013] According to the present invention, since the wire harness extending from the sensor is routed between the inner panel and the outer panel inside the rear door through the service hole on the door side surface, it is not necessary to provide a hole for taking in the wire harness separately from the service hole, and accordingly, a decrease in sound insulation is prevented. In addition, if a through-hole is made in the rear door separately from the service hole, there is a risk of water intrusion from there. However, if no hole is provided, there is no such concern, and no cost is incurred for using a mold rubber or the like to plug the hole.

[0014] Also, before the wire harness is drawn into the service hole from the sensor, it is covered by the side part of the bracket extending from the bracket to which the sensor is attached and the covering piece. In the covering piece, the side part of the bracket is housed in the concave groove part that covers it from the inside of the vehicle, so it is protected in a stable state at a fixed position.

[0015] Also, a sponge material that elastically contacts the wire harness and seals the space between the inner panel and the covering piece is provided on the rear side of the concave groove part of the covering piece. Therefore, even if the position of the wire harness deviates slightly due to variation, water is prevented from entering the inside of the vehicle through the concave groove part.

[0016] Furthermore, the opening at the rear end of the concave groove part of the covering piece is blocked by a lid part, which can further prevent water intrusion.

Brief Description of the Drawings

[0017]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Embodiments for Carrying Out the Invention

[0018] With reference to the drawings, the wire harness routing structure of the vehicle door sensor according to the embodiment of the present invention will be described.

[0019] As shown in FIG. 1, this wire harness routing structure is a structure in which the wire harness 41 of the sensor 40 that is attached to the rear door 101 of the automobile and detects foreign objects between the front door 102 is routed into the rear door 101 through the through hole H formed in the rear door 101. Here, the configurations of the rear door 101 and the front door 102 on the left side of the vehicle will be described, but the right side of the vehicle has the same configuration.

[0020] As shown in FIGS. 2 to 4, the sensor 40 is a pressure-sensitive sensor attached vertically via a bracket 30 to the tip of the rear door 101.

[0021] As shown in FIG. 5, which is a cross-sectional view taken along line A-A in FIG. 1, the rear door 101 is a slide door that moves in the front-rear direction of the vehicle and is composed of an inner panel 101a and an outer panel 101b. The inner panel 101a has a front end face 101a1 that protrudes and extends forward, a first stepped face 101a2 that slopes and extends rearward on the vehicle interior side from the rear end of the front end face 101a1, a first parallel face 101a3 that extends rearward from the vehicle interior side end of the first stepped face 101a2, a second stepped face 101a4 that extends inward from the rear end of the first parallel face 101a3, and a second parallel face 101a5 that extends rearward from the vehicle interior side end of the second stepped face 101a4. The outer panel 101b has its front end bent inward and forms a hemming joint HM that sandwiches the front end face 101a1 of the inner panel 101a.

[0022] The front door 102 is also a sliding door that moves in the longitudinal direction of the vehicle and is composed of an inner panel 102a and an outer panel 102b. The inner panel 102a has a rear end face 102a1 that protrudes and extends rearward, an inclined face 102a2 that slopes and extends inward from the front end of the rear end face 102a1, and a parallel face 102a3 that extends forward from the front end of the inclined face 102a2. The outer panel 102b has a rear end face 102b1 that protrudes and extends rearward, a first stepped face 102b2 that extends outward from the front end of the rear end face 102b1, a first parallel face 102b3 that extends forward from the outer side end of the first stepped face 102b2, a second stepped face 102b4 that extends outward from the front end of the first parallel face 102b3, a second parallel face 102b5 that extends forward from the outer side end of the second stepped face 102b4, a third stepped face 102b6 that extends outward from the front end of the second parallel face 102b5, and a third parallel face 102b7 that extends forward from the outer side end of the third stepped face 102b6. The outer panel 102b has its rear end bent inward and forms a hemming joint HM that sandwiches the rear end face 102a1 of the inner panel 102a.

[0023] As shown in FIGS. 2 to 4, the bracket 30 is composed of a bracket vertical side portion 31 that extends in the vertical direction and a bracket horizontal side portion 32 that extends in the longitudinal direction of the vehicle (rear door 101). The bracket horizontal side portion 32 extends from the bracket vertical side portion 31 toward the rear side of the rear door 101 at the lower part of the rear door 1. As shown in FIG. 5, the vertical side portion 31 of the bracket extends in the vehicle interior-exterior direction, with the outside of the vehicle being close to the front end face 101a1 of the inner panel 101a of the rear door 101. The rear side of the sensor 40 is fixed by a double-sided tape T or the like to a sensor mounting surface 31a, a first parallel surface 31b extends rearward from the inner side end of the sensor mounting surface 31a, an inclined surface 31c extends from the rear end of the first parallel surface 31b obliquely inward and rearward of the vehicle, and a second parallel surface 31d extends rearward from the inner side end of the inclined surface 31c.

[0024] The inclined surface 31c of the vertical side portion 31 of the bracket is attached to the rear door 101 in a state parallel to and in contact with the first stepped surface 101a2 of the inner panel 101a of the rear door 101. Also, as shown in FIG. 6, the second parallel surface 31d of the vertical side portion 31 of the bracket is parallel to the first parallel surface 101a3 of the inner panel 101a of the rear door 101 and is fixed to the first parallel surface 101a3 by fixing means such as bolts or screws B.

[0025] Also, as shown in FIGS. 5 and 7, a hollow center seal 51 fixed by a clip C is provided inside the vehicle of the first parallel surface 31b of the vertical side portion 31 of the bracket. When the rear door 101 and the front door 102 are closed, it elastically contacts the front door 102 to seal the vehicle interior and exterior. Also, a hollow main seal 52 is provided at the hemming joint HM formed on the rear side of the front door 102. When the rear door 101 and the front door 102 are closed, it elastically contacts the rear door 101 to seal the vehicle interior and exterior.

[0026] Interior materials (rear interior material and front interior material) 55 and 56 are provided inside the vehicle of the rear door 101 and the front door 102, respectively. In front of the rear interior material 55, an inner sensor 58 for detecting foreign objects between it and the front door 102 is attached in the same manner as the above-described sensor 40.

[0027] Further, as shown in FIG. 1, on the body side that forms the openings of the rear door 101 and the front door 102, there are provided a body-side upper parting seal 71 that elastically contacts the rear door 101 and the front door 102 when the doors are closed and extends in the front-rear direction at the upper part of the body, a hollow body-side main seal 72 provided so as to surround the entire circumference of the opening, and a body-side lower parting seal 73 that extends in the front-rear direction at the lower part of the body (the cross-sectional shape diagrams of the above three types of seals are omitted).

[0028] As shown in FIGS. 4 and 7, the wire harness 41 of the sensor 40 protrudes from a sensor-type portion 42 provided at the lower end of the sensor 40, and is led between the concave groove 31m formed on the sensor mounting surface 31a of the vertical side portion 31 of the bracket and the inner side surface of the hemming joint portion HM where the rear door outer panel 101b is bent to sandwich the rear end surface 101a1 of the rear door inner panel 101a, and then between the first parallel surface 31b of the bracket 30 and the rear end surface 101a1 of the inner panel 101a of the rear door 101, and then extends rearward through the space between the horizontal side portion 32 of the bracket and the first parallel surface 101a3 of the inner panel 101a.

[0029] As shown in FIG. 4, the rear side of the horizontal side portion 32 of the bracket is covered from the inside of the vehicle by a covering piece 60 made of a molded material (elastic material such as rubber or resin) attached to the lower part of the rear door 101 with a clip C. A curved receiving surface 61 is formed at the center in the front-rear direction of the covering piece 60. Also, as shown in FIGS. 2, 6, and 7, when the rear door 101 and the front door 102 are closed, the receiving surface 61 elastically contacts a hollow protruding curved portion 66 formed at the rear side of a corner seal portion 65 made of a molded material (elastic material such as rubber or resin) attached to the lower part of the front door 102 to ensure watertightness. The corner seal portion 65 is attached to the hemming joint portion HM where the outer panel 102b is bent to sandwich the rear end surface 102a1 of the inner panel 102a at the lower part of the front door 102. The upper end of the protruding curved portion 66 of the corner seal portion 65 is integrally connected to the lower end of the hollow seal portion 52a of the main seal portion 52 shown in FIG. 5.

[0030] Further, at the central portion of the covering piece 60 in the height direction, as shown in FIGS. 4, 7, and 8(b), a concave groove portion 62 is formed that horizontally extends in the front-rear direction of the rear door 101 and opens to the inner panel 101a side of the rear door 101 facing each other, and the rear side of the bracket horizontal side portion 32 is covered in a state of being fitted into this concave groove portion 62.

[0031] As shown in FIGS. 4, 7, and 8(a), the wire harness 41 of the sensor 40 extends rearward from the bracket vertical side portion 31 through between the bracket horizontal side portion 32 and the inner panel 101a. Further, at the rear side, as shown in FIGS. 4, 7, and 8(b), the bracket horizontal side portion 32 is covered by the concave groove portion 62 of the covering piece 60. Furthermore, at the rear side, as shown in FIGS. 4 and 7, the wire harness 41 is exposed from the rear end side of the bracket horizontal side portion 32 and is covered by the concave groove portion 62 without passing through the bracket horizontal side portion 32. The rear side of the concave groove portion 62 faces the inner panel 101a. Also, as shown in FIGS. 4 and 8(c), at the rear side of the concave groove portion 62, a sponge material (corking sponge) 70 is provided that elastically contacts the wire harness 41 and seals by contracting between the inner panel 101a and the covering piece 60 (shown by the solid line in FIG. 8(c)). Note that the dotted lines in FIGS. 4 and 8(c) show the state where the sponge material 70 is not contracted.

[0032] Also, as shown in FIGS. 9 and 10(a), (b), at the rear end portion of the concave groove portion 62 from which the wire harness 41 is drawn out of the concave groove portion 62 of the covering piece 60, a lid portion 80 is provided to close the opening at the rear end portion, and the sealing property is further enhanced. The lid portion 80 may have any shape as long as it closes the opening.

[0033] Then, the wire harness 41 drawn rearward from the concave groove portion 62 of the covering piece 60 is pulled up as shown in FIGS. 1 and 3, passed through the service hole H on the door side surface of the inner panel 101a, and routed between the inner panel 101a and the outer panel 101b of the rear door 101, and is connected to the control device of the automobile via the connector CT shown in FIG. 2. This service hole H is an existing working hole (a large hole provided on the side surface of the door) through which an operator can reach in and work when removing and installing components inside the door, such as a regulator (not shown), or when repairing components inside the door. A through-hole is newly provided separately from the service hole H to draw the wire harness 41 between the inner panel 101a and the outer panel 101b of the rear door 101 (for example, the hole 5 provided in the first step portion 1a1 shown in FIG. 11 of the conventional example). This is not the case. The service hole H is blocked by a door hole seal (not shown), and the door hole seal (not shown) is covered by the rear interior material (door trim) 55 shown in FIGS. 5 to 7. Here, the service hole H (through-hole) of the present embodiment corresponds to the opening H of Patent Document 3.

[0034] According to the wire harness routing structure of the vehicle door sensor configured as described above, the wire harness 41 extending from the sensor 40 is routed from the service hole H into the rear door 101 (between the inner panel 101a and the outer panel 101b). Therefore, it is not necessary to separately provide a new hole for taking in the wire harness 41 from the service hole H (for example, it is not necessary to provide a hole in the first step surface 101a2 shown in FIG. 5, which corresponds to the first step portion 1a1 shown in FIG. 11). Accordingly, a decrease in sound insulation is prevented. In addition, if a through-hole is made separately from the service hole H in the rear door 10, there is a risk of water intrusion from there. However, if no hole is provided, there is no such concern, and no cost is incurred for using mold rubber or the like to block the hole.

[0035] Also, until the wire harness 41 is drawn into the service hole H from the sensor 40, it is covered by the side edge portion 32 of the bracket extending from the bracket 30 to which the sensor 40 is attached and the covering piece 60. In the covering piece 60, the side edge portion 32 of the bracket is housed in the concave groove portion 62 that covers it from the inside of the vehicle, so it is protected in a stable state at a fixed position.

[0036] Also, when the rear door 101 and the front door 102 are closed, the covering piece 60 that protects the wire harness 41 elastically contacts the corner seal portion 65 attached to the front door 102, so that the watertightness of the joint portion between the rear door 101 and the front door 102 can be ensured.

[0037] Also, on the rear side of the groove portion 62 of the covering piece 60, a sponge material 70 is provided that elastically contacts the wire harness 41 and seals the space between the inner panel 101a and the covering piece 60. Therefore, even if the position of the wire harness 41 shifts slightly due to variations, water is prevented from entering the vehicle interior through the groove portion 62.

[0038] Furthermore, the opening at the rear end of the groove portion 62 of the covering piece 60 is blocked by a lid portion 80, which can further prevent water from entering.

[0039] In this embodiment, the rear door 101 and the front door 102 slide in the front - rear direction. However, as long as a sensor 40 for vehicle doors is attached to the front side of the rear door 10 to detect foreign objects between the front doors 102, it can be applied to any type of door, such as double - opening doors.

Explanation of Reference Numerals

[0040] 1 Rear door 1a Inner panel 1a1 First - stage portion 1b Outer panel 2 Front door 3 Pressure - sensitive sensor 4 Wire harness 5 Hole 6 Grommet 7 Covering member 11 Wire harness 12 Bracket 12a First - wall - portion wire - routing surface 13 Lead - out hole 14 Retaining wall portion 14a Surface 30 Bracket 31 Vertical side portion of bracket 31a Sensor mounting surface 31b First parallel surface 31c Inclined surface 31d Second parallel surface 31m Concave groove 32 Bracket side edge part 40 Sensor 41 Wire harness 42 Sensor type part 51 Center seal 52 Main seal 52a Hollow seal part 55 Rear interior material 56 Front interior material 58 Inner sensor 60 Cover piece 61 Receiving surface 62 Concave groove part 65 Corner seal part 66 Protruding curved part 70 Sponge material 71 Body side upper parting seal 72 Body side main seal 73 Body side lower parting seal 80 Cover part 101 Rear door 101a Inner panel 101a1 Front end face 101a2 First stepped surface 101a3 First parallel surface 101a4 Second stepped surface 101a5 Second parallel surface 101b Outer panel 102 Front door 102a Inner panel 102a1 Rear end face 102a2 Inclined surface 102a3 Parallel surface 102b Outer panel 102b1 Rear end face 102b2 First stepped surface 102b3 First parallel surface 102b4 Second stepped surface 102b5 Second parallel surface 102b6 Third sectional plane 102b7 Third parallel plane B Fixing means (bolt or screw) C Clip CT Connector H Service hole (through hole) HM Hemming joint T Double-sided tape

Claims

1. A structure in which a wire harness of a sensor that is attached to a rear door of an automobile via a bracket and detects a foreign object between the rear door and a front door is routed between the inner panel and an outer panel through a through hole formed in the inner panel of the rear door, The through hole is a service hole on the door side of the inner panel, the wire harness is disposed between a bracket horizontal side portion extending from the bracket in a front-rear direction of the rear door and the inner panel in a lower portion of the rear door before the wire harness reaches the through hole from the sensor, A wire harness arrangement structure for a vehicle door sensor, characterized in that a covering piece is provided at the bottom of the rear door, which elastically contacts the front door when the rear door and the front door are closed, and a groove portion is formed in the covering piece, extending in the fore-and-aft direction of the rear door and covering the bracket horizontal portion from the inside of the vehicle.

2. a front side of the groove portion covers a rear side of the bracket horizontal side portion, and the rear side of the groove portion faces the inner panel without the bracket horizontal side portion being interposed therebetween; 2. The wire harness arrangement structure for a vehicle door sensor as claimed in claim 1, characterized in that a sponge material is provided on the rear side of the groove portion, which elastically contacts the wire harness and seals the gap between the inner panel and the cover piece.

3. 3. The wiring harness arrangement structure for a vehicle door sensor according to claim 2, further comprising a cover portion for closing a rear end portion of the recessed groove portion at an outer side of the vehicle.

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