JP3988222B2 - Slide sheet wire harness - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wire harness for supplying electric power to an electrical component mounted on, for example, an automobile slide seat.
[0002]
[Prior art]
In a car slide seat with a built-in seat belt buckle, a switch is provided to detect that the tongue is attached to the seat belt buckle, and the information on whether or not the seat belt is attached is provided on the instrument panel. There is something that can be displayed on the belt indicator.
When the above-mentioned switch is provided as an electrical component on a slide seat that can adjust the position in the front-rear direction, the wire harness that supplies power to the switch must be able to be displaced according to the slide of the seat There is.
[0003]
Therefore, conventionally, as shown in FIGS. 6 and 7, a wire harness 21 for supplying electric power to an electrical component mounted on a seat is replaced with a seat cushion from a wire harness main line 22 provided along a cross member 26 of the vehicle. It branches on the lower surface of 23, and is fixed to the lower surface of the seat cushion 23 by a clamp 24 (or connected to a connector fixed to the lower surface of the cushion). As shown in FIG. 7, the seat is set so that its front end portion is positioned almost directly above the cross member 26 when it is slid along the seat rail 25 to the rearward end.
[0004]
[Problems to be solved by the invention]
Conventionally, as shown in FIG. 6, when the seat is slid to the forward end, the wire harness 21 branched from the wire harness trunk line 22 is set so as not to be loosened. When sliding to the end, as shown in FIG. 7, the distance between the branch point from the wire harness main line 22 and the fixing point by the clamp 24 (or connector) is shorter than that at the forward end of the seat, and the wire harness 21 The length of the surplus. Therefore, slack occurs in the wire harness 21 at the reverse end, and the slack is maximized particularly when the clamp 24 is positioned directly above the wire harness main line 22 in the seat moving direction. For example, when an under tray, an audio amplifier, a speaker, or the like is disposed below the seat cushion 23, the seat cushion 23 may be entangled with them.
[0005]
The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a wire harness for a slide seat that can reduce the slack of the wire harness accompanying the slide of the seat as much as possible. is there.
[0006]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention is configured as follows. That is, the invention of claim 1 is provided on the lower surface side of the seat to supply electric power to the electrical components mounted on the slide seat, and the floor side fixing point fixed to the floor side and the seat fixed to the seat side A wire harness that deforms following a slide of a slide seat with a side fixing point, wherein the floor side fixing point is provided at a central position of a movement range of the seat side fixing point by a seat slide, The floor side fixing point includes a pedestal that is fixed to the floor side and has a seating surface in an upright direction, and is configured by a clamp that fixes the wire harness with the longitudinal direction of the pedestal up and down. By fixing the wire harness with the longitudinal direction of the wire harness up and down by the floor side fixing point, the wire harness extending upward from the floor side fixing point Min wire harness with directivity toward upward is imparted characterized by being configured to be deformed in a curved shape upwardly.
[0007]
According to the invention of claim 1 configured as described above, the distance from the seat-side fixing point to the floor-side fixing point is equal at each of the slide front end position and the rear end position of the seat, and is shortened compared to the conventional art. Will be. Therefore, the length of the wire harness can be shortened. For this reason, at the moving end of the seat slide, it is possible to prevent the wire harness from being slackened or excessively tensioned, and to reduce slack in the middle as the wire harness is shortened. become.
Further, the floor-side fixing point has a pedestal that is fixed to the floor side and has a seating surface in an upright direction, and is configured by a clamp that fixes the wire harness to the pedestal with the longitudinal direction thereof set in the vertical direction, By fixing the wire harness with the longitudinal direction of the wire harness up and down by the floor side fixing point, directivity directed upward is given to the portion of the wire harness that extends upward from the floor side fixing point and the wire harness. Is configured to be deformed upward in a curved shape. For this reason, it is possible to give a fixed form to the deformation of the portion of the wire harness that extends upward from the floor-side fixing point due to the slack of the wire harness when the slide seat slides, that is, the upward deformation of the wire harness It becomes. Therefore, it is effective in preventing disconnection by avoiding biting of the wire harness with respect to the seat rail or catching of the wire harness with an under tray or an audio related device disposed on the lower surface side of the seat.
[0008]
The invention according to claim 2 is the wire harness of the slide seat according to claim 1, wherein the seat side fixing point is fixed to the seat side and connected to the wire harness leading to the electrical component; The male connector at the seat-side fixing point , comprising a female-side connector that is detachably attached to the male connector laterally from the clamp side and connected to the seat-side end of the wire harness. By connecting the side connector and the female connector to fix the wire harness with the longitudinal direction of the wire harness in the horizontal direction, the wire harness extends in the horizontal direction from the seat side fixing point. It is characterized by having directivity.
By such a configuration, it is possible to improve the fixed form of curved deformation due to slack of the wire harness at the time of sliding of the sliding seat. In that case, by making the distance between the floor side fixing point and the seat side fixing point in the lateral direction (direction perpendicular to the moving direction of the seat) as large as possible, it is possible to prevent the maximum looseness of the wire harness when sliding. It is possible to minimize slack at the center of a certain moving range.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be specifically described below with reference to FIGS. FIG. 1 is a schematic view of a state where the slide sheet is slid to the front end position, and FIG. 2 is a schematic view of a state where the slide sheet is slid to the rear end position. In the drawings, only the seat cushion panel 1 is shown as a slide seat for convenience. The seat is guided by the left and right seat rails 2 and is slid back and forth. The seat rail 2 is fixed to the cross member 4 on the upper surface of the floor panel 3 and the rear side is fixed to the floor panel 3. . In addition, FR arrow in a figure shows the vehicle front.
[0010]
For example, a wire harness 6 for supplying electric power to an electrical component such as a seat belt switch (not shown) that detects the seat belt is mounted along the cross member 4 on the upper surface of the floor panel 3. After branching from the wire harness main line 5 to be disposed, the wire harness is disposed on the lower surface side of the seat cushion panel 1.
And the wire harness 6 is fixed to the side surface of the seat rail 2 on the floor side (left side toward the front of the vehicle in this embodiment) by a clamp 7, and the seat side has a connector 8 on the lower surface (back surface) of the seat cushion panel 1a. Is fixed through. Therefore, when the seat is slid, the wire harness 6 follows the clamp 7 and the connector 8 in the front-rear direction.
[0011]
In the present embodiment, a seat-side fixing point of the wire harness 6 is configured by the connector 8, and the connector 8 is fixed to a substantially central portion of the seat cushion panel 1a. The clamp 7 constitutes a floor-side fixing point of the wire harness 6, and the clamp 7 is set at a substantially central position of the connector 8 in the front-rear movement range of the seat.
[0012]
Therefore, by setting the fixing position of the wire harness 6 as described above, the length from the clamp 7 to the connector 8 is the same at the forward end and the backward end of the seat, and is shortened compared to the conventional case. become. Therefore, at the moving end of the sheet, it is possible to obtain a state in which the wire harness 6 is not loosened, and it is possible to reduce the slack at the center of the moving range as the wire harness 6 is shortened.
In that case, if the distance between the clamp 7 and the connector 8 in the lateral direction (the direction perpendicular to the moving direction of the sheet) is set large, the slack at the center of the moving range, which is the position where the maximum slack of the wire harness at the time of sliding, is generated. It becomes possible to make it less.
[0013]
3 shows a specific mounting structure of the wire harness, and is a detailed cross-sectional view taken along line AA of FIG. 4 shows a cross section taken along line BB in FIG. 3, and FIG. 5 shows a cross section taken along line CC in FIG. As shown in FIGS. 3 and 4, the clamp 7 for fixing the wire harness 6 to the floor is made of synthetic resin, and the mounting hole of the clamp bracket 9 fixed to the fixed rail 2 a in the seat rail 2. It is inserted and fixed sideways using its own elastic deformation. Then, the wire harness 6 is wound and fixed by a tape 10 with the longitudinal direction of the plate-like pedestal 7a having the seat surface integrally provided with the clamp 7 in the upright direction.
[0014]
On the other hand, as shown in FIGS. 3 and 5, the connector 8 is attached to the attachment hole of the seat cushion panel 1a via a synthetic resin connector clamp 11 which is inserted and fixed from the lower surface side using elastic deformation. Yes. In the present embodiment, the connector clamp 11 fixes the male connector 8a, and the female connector 8b connected to the wire harness 6 is attached to and detached from the male connector 8a. . The attachment / detachment direction of the connector 8 is set to be transverse to the sheet moving direction. The male connector 8a is connected to a wire harness (not shown) that leads to the electrical component.
[0015]
As described above, in this embodiment, the wire harness 6 is given upward directivity by the clamp 7 at the floor side fixing point, and the lateral directionality is given by the connector 8 at the seat side fixing point. Has been.
For this reason, while the deformation | transformation accompanying the tracking of the wire harness 6 at the time of a slide of a sheet | seat becomes a fixed deformation | transformation which can be anticipated, it follows a slide of a sheet | seat smoothly. In addition, since the deformation direction is a deformation toward the lower surface of the seat as shown by an imaginary line in FIG. 3, that is, a deformation that curves upward, the biting into the seat rail 2 is prevented, and an effective space on the lower surface of the seat is prevented. Becomes wider.
Therefore, it is advantageous when, for example, the under tray 12 as shown in FIG. 3 or an audio-related device is arranged on the lower surface of the sheet, and in this case, it is effective in preventing the catching with them.
[0016]
Although not shown, the wire harness 6 is covered with an elastic material over its entire length, which makes it possible to reduce the stress applied to the wire harness 6 when the seat is slid, and to make the seat cushion panel 1a. The wire harness 6 can be protected when it rubs against the lower surface of the wire harness.
[0017]
In the above-described embodiment, the seat-side fixing point is configured by the connector 8, but the sheet-side fixing point may be configured by the clamp 7.
In the figure, the seat side fixing point is set at the substantially central portion of the seat cushion panel 1a, and the floor side fixing point is set near the front of the seat rail 2. However, the floor side fixing point is the seat side fixing point. As long as the positional relationship of being set at the center of the range of movement by sliding is maintained, the position can be changed freely, and the floor-side fixing point is not limited to the seat rail 2, but is provided on the floor panel 3, for example. There is no problem.
[0018]
【The invention's effect】
As described above in detail, according to the present invention, the length from the seat-side fixing point to the floor-side fixing point of the wire harness at the front end position and the rear end position of the seat becomes equal, compared to the conventional case. It can be shortened. For this reason, it is possible to prevent problems such as loosening or excessive tension in the wire harness at the moving end of the seat slide, and it is possible to reduce slack during movement as the wire harness is shortened. It becomes.
[Brief description of the drawings]
1A and 1B are schematic views of a wire harness in a state where a slide seat is slid to a front end position, wherein FIG. 1A is a plan view, FIG. 1B is a front view, and FIG.
2A and 2B are schematic views of the wire harness in a state where the slide seat is slid to the rear end position, where FIG. 2A is a plan view, FIG. 2B is a front view, and FIG. 2C is a side view.
FIG. 3 is a detailed cross-sectional view taken along line AA in FIG. 2, showing a specific mounting structure of the wire harness.
4 is a cross-sectional view taken along line BB in FIG.
5 is a cross-sectional view taken along the line CC of FIG. 3;
6A and 6B are schematic views of a wire harness in a state in which a conventional slide seat is slid to the front end position, where FIG. 6A is a plan view and FIG. 6B is a side view.
7A and 7B are schematic views of a wire harness in a state where a conventional slide seat is slid to a rear end position, where FIG. 7A is a plan view, FIG. 7B is a side view, and FIG. It is D line sectional drawing.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Seat cushion 2 ... Seat rail 6 ... Wire harness 7 ... Clamp 8 ... Connector

Claims (2)

Slide sheet between the floor side fixed point fixed on the floor side and the sheet side fixed point fixed on the floor side, which is arranged on the lower surface side of the sheet to supply power to the electrical components mounted on the slide sheet Wire harness that deforms following the slide of
The floor side fixing point is provided at the center position of the moving range of the seat side fixing point by sliding the seat,
The floor-side fixing point is configured by a clamp that is fixed to the floor side and has a pedestal having a seating surface in an upright direction, and that fixes the wire harness with the longitudinal direction of the pedestal up and down.
By fixing the wire harness so that the longitudinal direction of the wire harness is in the vertical direction by the floor-side fixing point, directivity directed upward is given to the portion of the wire harness that extends upward from the floor-side fixing point. And a wire harness for a slide seat, characterized in that the wire harness is curvedly deformed upward . A male side connector to which a wire harness that is fixed to the seat side and communicates with the electrical component is connected; and a wire harness that is detached from the clamp side in a lateral direction with respect to the male side connector; It is constituted by a connector composed of a female connector to which an end of the seat side is connected,
A wire extending in a lateral direction from the seat-side fixing point by fixing the wire harness with the longitudinal direction of the wire harness being set in a lateral direction by connecting the male-side connector and the female-side connector at the seat-side fixing point The wire harness for a slide seat according to claim 1, wherein directivity toward the lateral direction is imparted to the portion of the harness.

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