JP2014117988A - Structure for arranging harness to floor panel of motor vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure for arranging a harness to a floor panel of a motor vehicle which prevents wire breaking of the harness.SOLUTION: A buckle 8 is fixed to a floor panel 2, and one end part 10A of a harness 10 is connected with the buckle 8. A protruding part 9 is provided protruding on an upper surface of a panel positioned below a front end part of a seat cushion so as to be arranged along a vehicle width direction W. The harness 10 comprises: a first harness portion 11 extending downward from the buckle 8; a second harness portion 12 which bends relative to the first harness portion on the panel upper surface side and extends to the vehicle front side Fr; and a third harness portion 13 which bends relative to the second harness portion 12 on the rear surface side of the protruding part 9 and extends in the vehicle width direction W so as to be arranged along a rear surface of the protruding part 9.

Description

The present invention
The buckle of the seat belt device is fixed to the floor panel below the seat cushion,
One end of a harness is connected to the buckle,
The present invention relates to a harness routing structure for a floor panel of an automobile in which the harness is routed on a panel upper surface of the floor panel.

As an example, the other end of the harness is connected to a control device mounted on the vehicle body. When the occupant (seat) sits on the vehicle seat and the buckle sensor detects that the tongue plate of the seat belt device is engaged with the buckle, the detection signal is sent to the control device via the harness. Sent. The control device notifies the passenger that a later-described notification device and / or display device (hereinafter referred to as “notification device etc.”) does not operate (or that the seat belt device is mounted). Etc.) so as to notify and / or display the passenger).
Further, when the engine is started in a state where the sensor does not detect that the tongue plate of the seat belt device is engaged with the buckle, and the vehicle travels a set distance, a notification device that the seat belt device is not installed The control device controls the notification device and the like so that the information is displayed and / or displayed to the occupant.
Conventionally, in the harness routing structure to the above-described automobile floor panel, as disclosed in Patent Document 1, the harness has a first harness portion extending downward from the buckle, and the first harness portion. The second harness portion is bent at the upper surface side of the panel and extends to the side of the seat in the vehicle width direction.

JP 2011-126358 A

According to the above-described conventional structure, since the second harness portion is located below the seat occupant's buttocks, there is a possibility that a large load is applied from the occupant to the second harness portion and the second harness portion is disconnected. It was. As a result, a protective cover for preventing the harness from being disconnected must be provided on the harness, which increases the number of parts and increases the manufacturing cost.
An object of the present invention is to provide a harness routing structure to an automobile floor panel that can prevent disconnection of a harness without providing a protective cover, reduce the number of parts, and reduce manufacturing costs. is there.

The feature of the present invention is that
The buckle of the seat belt device is fixed to the floor panel below the seat cushion,
One end of a harness is connected to the buckle,
A harness wiring structure to a floor panel of an automobile in which the harness is wired on the panel upper surface of the floor panel,
A convex portion along the vehicle width direction is projected on the upper surface of the panel located below the front end portion of the seat cushion,
The harness includes a first harness portion extending downward from the buckle to the panel upper surface side;
A second harness portion that is bent with respect to the first harness portion on the upper surface side of the panel and extends toward the vehicle front side;
It is in the point which consists of the 3rd harness part extended in the vehicle width direction so that it may bend with respect to the said 2nd harness part on the rear surface side of the said convex part, and may follow the rear surface of the said convex part. (Claim 1)

The load on the floor and harness is less in the vicinity of the lap of the occupant seated in the seat cushion than in the buttocks and thighs. In the vicinity of the knee back where the load is small, the third harness portion of the harness extends in the vehicle width direction along the rear surface of the convex portion.
Therefore, the movement of the harness can be suppressed by arranging the third harness portion at a location where the load applied is small and further fixing the third harness portion along the side surface of the convex portion. Thereby, disconnection of a 3rd harness part can be prevented. Therefore, the protective cover that covers the third harness portion can be omitted, the number of parts can be reduced, and the manufacturing cost can be reduced. (Claim 1)

In the present invention,
If the second harness portion is positioned below a pair of adjacent seating portions of the seat cushion, the following action can be achieved. (Claim 2)

  Below the pair of seating portions adjacent to each other of the seat cushion, the load applied from the occupant is small. Since the second harness part of the harness is disposed at such a position, disconnection of the second harness part can be prevented. Therefore, the protective cover that covers the second harness portion can be omitted, the number of parts can be reduced, and the manufacturing cost can be reduced. (Claim 2)

In the present invention,
Reinforcing reinforcement is provided on the upper surface of the lower panel between the pair of seating portions,
When the second harness portion is fixed to the reinforcement via a fixing member, the following action can be achieved. (Claim 3)

  Since it is not necessary to form a through hole for attaching a harness to the floor panel, noise and water intrusion into the vehicle compartment can be prevented. (Claim 3)

In the present invention,
When the convex portion is a submarine preventing member that prevents the seat occupant's buttocks from sliding to the vehicle front side with respect to the seating surface of the seat cushion at the time of a frontal collision of an automobile, the following effects can be achieved. (Claim 4)

  Usually, since the submarine prevention member is provided integrally or separately on the floor panel of the automobile, it is not necessary to newly provide a dedicated member for forming the convex portion. Therefore, the increase in the number of parts can be further suppressed, the manufacturing cost can be further reduced, and the structure can be simplified. (Claim 4)

According to the present invention,
Even if a protective cover is not provided, the disconnection of the harness can be prevented, the number of parts can be reduced, and the harness routing structure to the automobile floor panel that can reduce the manufacturing cost can be provided.

Perspective view of harness wiring structure to automobile floor panel Plan view of vehicle seat AA sectional view of FIG. BB sectional view of FIG.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
FIG. 1 shows a harness arrangement structure for a floor panel 2 of an automobile, and FIGS. 2 to 4 show a three-seat rear seat 1 mounted on the floor panel 2. The rear seat 1 includes a seat cushion 3 that supports the buttocks 50A and thighs of the occupant 50 (seats), and a seat back 4 that supports the back of the occupant 50.

  The seat cushions 3 of the left seat (not shown), the center seat 6 and the right seat 7 are formed integrally with each other, and the seat backs 4 of the left seat, the center seat 6 and the right seat 7 are also formed integrally with each other. . A headrest 5 that supports the heads of the occupants 50 of the seats 6 and 7 is connected to the upper ends of the left seat, the center seat 6, and the right seat 7 of the seat back 4.

  As shown in FIG. 1, a plurality of buckles 8 of the seat belt device are fixed to a floor panel 2 below the seat cushion 3 via a belt 19. As shown in FIG. 2, the buckle 8 penetrates the rear end portion 3B of the seat cushion 3 in the vertical direction, and the upper end portion of the buckle 8 faces upward of the skin material of the rear end portion 3B. The buckle 8 is held in a vertical posture by the seat cushion 3, and has a tongue plate insertion opening 8K that opens upward at the upper end. A plurality of tongue plates movably fitted to the webbing of the seat belt device are configured to be engaged and disengaged with the plurality of buckles 8 individually.

  In the present embodiment, a buckle 8 located on the left side of the occupant 50 in the right seat 7 and a pair of left and right buckles 8 located on the left and right sides of the occupant 50 (see FIG. 3) in the center seat 6 are shown as examples. It is.

  As shown in FIGS. 1 and 4, a submarine prevention member 9 (corresponding to a convex portion) along the vehicle width direction W protrudes on the panel upper surface 2J of the floor panel 2 located below the front end portion 3M of the seat cushion 3. It is installed. The submarine prevention member 9 is set to a length that extends over substantially the entire width of the floor panel 2, and prevents the seat occupant's buttocks 50A from sliding to the vehicle front side Fr with respect to the seating surface 14M of the seat cushion 3 at the time of frontal collision of the automobile. It is a member.

  The submarine prevention member 9 is formed in a cross-sectional hat shape whose lower side is open, and a lower flange 9F is fixedly welded to the panel upper surface 2J. And the said submarine prevention member 9 is fitted by the recessed part 3U formed in the back surface of the front-end part 3M of the seat cushion 3 from the lower side.

  As shown in FIGS. 1 and 3, a reinforcement reinforcement 17 for the floor panel 2 is fixed by welding to a lower panel upper surface 2J between a pair of seating portions 14 adjacent in the vehicle width direction W. The reinforcement 17 is formed long in the front-rear direction of the seat, and the reinforcement body 17H inside the peripheral portion 17F bulges upward with respect to the peripheral portion 17F and the panel upper surface 2J. The front end portion of the reinforcement 17 is welded and fixed to the rear surface 9K of the submarine prevention member 9 (the surface facing the vehicle rear side Rr, see FIG. 4), and the rear end portion of the reinforcement 17 is the panel upper surface 2J below the buckle 8. Located in the vicinity.

  One end 10 </ b> A of a harness 10 (reminder harness) is connected to the buckle 8, and the harness 10 is routed on the panel upper surface 2 </ b> J of the floor panel 2. The harness 10 includes a first harness portion 11 that extends downward from the buckle 8 to the panel upper surface 2J side, a second harness portion 12 that is bent with respect to the first harness portion 11 on the panel upper surface 2J side and extends to the vehicle front side Fr; The submarine prevention member 9 includes a third harness portion 13 that is bent with respect to the second harness portion 12 on the rear surface 9K side and extends in the vehicle width direction W along the rear surface 9K of the submarine prevention member 9.

  As shown in FIG. 1, the second harness portion 12 of the harness 10 extending from the buckle 8 located on the left side of the occupant 50 in the right seat 7 and the harness 10 extending from the buckle 8 located on the right side of the occupant 50 in the center seat 6. The second harness portion 12 is gathered together at the middle portion in the longitudinal direction.

  As shown in FIG. 3, the second harness portion 12 is positioned below a pair of adjacent seating portions 14 of the seat cushion 3, and a clip 15 (corresponding to a fixing member) is formed on the upper wall 17 </ b> J of the reinforcement 17. , See FIG. 1). The third harness portion 13 is fixed to the rear surface 9K (see FIG. 4) of the submarine preventing member 9 via a clip 15. Thereby, the inundation damage of the harness 10 at the time of water permeating into the said panel upper surface 2J side from a passenger | crew's step can be reduced.

The other end of the third harness 10 is connected to a control device of a reminder device. When the occupant 50 (seat) sits on the rear seat 1 and the sensor on the buckle 8 side detects that the tongue plate of the seat belt device is engaged with the buckle 8, the detection signal is controlled via the harness 10. Sent to the device. The control device is configured so that a notification device and / or a display device described later for the occupant 50 or both of them (hereinafter referred to as “notification device”) does not operate (or that the notification device or the like indicates that the seat belt device is in the mounted state) The notification device or the like is controlled so that the passenger is notified and / or displayed.
In addition, when the engine is started without the sensor detecting that the tongue plate of the seat belt device is engaged with the buckle 8 and the vehicle travels a set distance, a notification device or the like that the seat belt device is not attached is provided. The control device controls the notification device or the like so as to notify and / or display to the passenger.

According to said structure, there can exist the following effect | action.
(1) The frequency of movement near the back of the knee of the occupant 50 seated on the seat cushion 3 is high. The third harness portion 13 of the harness 10 extends in the vehicle width direction W along the rear surface 9K of the submarine prevention member 9 in the vicinity of the back of the knee where the frequency of such movement is high. Therefore, the load applied from the occupant 50 can be received by the submarine preventing member 9 and the load from the occupant 50 applied to the third harness portion 13 can be reduced. Thereby, disconnection of the 3rd harness part 13 can be prevented. Therefore, the protective cover that covers the third harness portion 13 can be omitted, the number of parts can be reduced, and the manufacturing cost can be reduced.

(2) The load applied from the occupant 50 is small below the pair of adjacent seating portions 14 of the seat cushion 3. Since the 2nd harness part 12 of the harness 10 is arrange | positioned in such a position, the disconnection of the 2nd harness part 12 can be prevented. Therefore, the protective cover that covers the second harness portion 12 can be omitted, the number of parts can be reduced, and the manufacturing cost can be reduced.

(3) Since the second harness portion 12 is fixed to the upper wall 17J of the reinforcement 17 via the clip 15, it is not necessary to form a through hole for attaching the harness in the floor panel 2. Therefore, noise and water intrusion into the vehicle compartment can be prevented. Further, the second harness portion 12 can be easily fixed to the upper wall 17J of the reinforcement 17 and workability can be improved, and the second harness portion 12 can be fixed to the upper wall 17J of the reinforcement 17 The state can be stabilized.

(4) Since the third harness portion 13 extends in the vehicle width direction W along the rear surface 9K of the existing submarine prevention member 9, it is necessary to newly provide a convex portion for the third harness portion 13 to follow. There is no. Therefore, the increase in the number of parts can be further suppressed, the manufacturing cost can be further reduced, and the structure can be simplified.

[Another embodiment]
The fixing member may be a member other than a clip.

2 Floor panel 2J Panel upper surface 3 Seat cushion 3M Seat cushion front end 8 Buckle 9 Convex (submarine prevention member)
9K Rear surface 10 of convex part 10 Harness 10A One end part 11 of harness 1st harness part 12 2nd harness part 13 3rd harness part 14 Seating part 15 Fixing member (clip)
17 Reinforce Fr Vehicle front side W Vehicle width direction

Claims (4)

The buckle of the seat belt device is fixed to the floor panel below the seat cushion,
One end of a harness is connected to the buckle,
A harness wiring structure to a floor panel of an automobile in which the harness is wired on the panel upper surface of the floor panel,
A convex portion along the vehicle width direction is projected on the upper surface of the panel located below the front end portion of the seat cushion,
The harness includes a first harness portion extending downward from the buckle to the panel upper surface side;
A second harness portion that is bent with respect to the first harness portion on the upper surface side of the panel and extends toward the vehicle front side;
A harness routing structure on a floor panel of an automobile, comprising a third harness portion that is bent with respect to the second harness portion on the rear surface side of the convex portion and extends in the vehicle width direction along the rear surface of the convex portion.   The harness wiring structure for a floor panel of an automobile according to claim 1, wherein the second harness portion is positioned below a pair of adjacent seating portions of the seat cushion. Reinforcing reinforcement is provided on the upper surface of the lower panel between the pair of seating portions,
The harness routing structure for a vehicle floor panel according to claim 2, wherein the second harness portion is fixed to the reinforcement via a fixing member.   The said convex part is a submarine prevention member which prevents a seated person's buttocks from sliding to the vehicle front side with respect to the seating surface of the said seat cushion at the time of the front collision of a motor vehicle. Harness wiring structure to the floor panel of automobiles.

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