JP2010264785A - Vehicle door opening and closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle door opening and closing device which is structured to supply an electric power to a door side via a wire harness, can lay the wire harness easily, and does not cause disconnection in the door opening and closing the device of a luggage door or a back door of automobiles. <P>SOLUTION: The vehicle door opening and closing device includes: a hinge 3 set up on a vehicle body via a bracket 2; an arm 4, one end of which is connected rotatably to the hinge 3 and the other end of which is connected to a vehicle door; a first wire harness 10, which is provided on the vehicle body side and one end of which is connected to the hinge; and a second wire harness 11, which is provided on the vehicle body side and one end of which is connected to the hinge. The first wire harness and the second wire harness are electrically connected via the hinge. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vehicle door opening / closing device that facilitates wiring harness arrangement, for example, in an opening / closing mechanism for a luggage door of an automobile.

For example, as shown in FIG. 9, conventionally, a luggage door 50 of an automobile is connected to a vehicle body 60 via a U-shaped arm 51. That is, as shown, one end 51 a of the arm 51 is fixed to the luggage door 50, and the other end 51 b is connected to the vehicle body 60 so as to be rotatable. Thus, the luggage door 50 can be opened and closed with the other end 51b of the arm 51 as a rotation axis.
The luggage door 50 is equipped with electrical components such as a tail lamp 55, and the electrical components are supplied with power via a wire harness 52 in which a plurality of electric wires are bundled as shown in FIG.

The vehicle body 60 and the luggage door 50 are connected only by the rotating arm 51. The wire harness 52 is attached along the arm 51 in order to prevent the wire harness 52 from being caught when the door is opened and closed. ing.
More specifically, as shown in FIG. 10, the wire harness 52 is fixed to the vehicle body 60 and the arm 51 by clamps 56 and 57, respectively, and bends following the opening / closing operation of the luggage door 50. It is made like that.
Note that an opening / closing device for a vehicle door such as a luggage door or a back door using the U-shaped arm is described in Patent Document 1.

JP-A-10-203420

As described above, with the opening / closing operation of the luggage door 50, the wire harness 52 (fixed to the vehicle body 60 and the arm 51) follows and bends. For this reason, a predetermined extra length portion is provided at the bent portion between the clamps.
However, depending on the clamp position of the wire harness 52, there is a possibility that stress is concentrated on a predetermined part of the wire harness 52 due to the bending operation following the opening / closing operation of the luggage door 50, and the electric wire in the wire harness 52 may be disconnected. It was.
Further, depending on the arrangement of the wire harness 52 for avoiding such an accident, there is a possibility that design restrictions may occur in the design stage.
Furthermore, there is a problem that it takes a lot of time to examine the arrangement of the wire harness 52.

  The present invention has been made paying attention to the above-described points, and in a luggage door or back door opening and closing device of an automobile, power is supplied to the door side via a wire harness. An object of the present invention is to provide a vehicle door opening and closing device that can be easily routed and does not break.

  In order to solve the above-described problems, a vehicle door opening and closing device according to the present invention is a vehicle door opening and closing device for opening and closing a vehicle door to which power is supplied from the vehicle body side, and a bracket is attached to the vehicle body. A hinge part installed on one end of the hinge part, and an arm connected to the hinge part, the other end being connected to the vehicle door, and one end of the hinge part. A first wire harness connected to the vehicle door and a second wire harness having one end connected to the hinge portion, the first wire harness and the second wire harness; Is electrically connected through the hinge portion.

The hinge portion includes a fixed portion provided on the bracket and a rotating portion provided at one end of the arm and rotatably supported with respect to the fixed portion, and one end of the first wire harness. Is preferably electrically connected to the fixed portion, and one end of the second wire harness is electrically connected to the rotating portion.
Further, the fixing portion has a first conductive portion electrically connected to one end of the first wire harness, and the rotating portion is electrically connected to one end of the second wire harness. It is desirable that the first conductive portion and the second conductive portion are electrically connected to each other at least within the pivotable range of the arm.

In addition, the first conductive portion is formed in an arc shape with a pivot point of the arm as a center point on a side surface of the fixed portion, and the second conductive portion is formed by the first conductive portion. On the side surface of the rotating portion opposite to the side surface of the fixed portion, the first conductive portion and the second conductive portion are formed in an arc shape with the pivot axis of the arm as a center point. It is desirable to be electrically connected through a conductive rotary piece provided between them.
In addition, a plurality of arc-shaped first conductive portions are formed in parallel on the side surface of the fixed portion, and a plurality of arc-shaped first conductive portions respectively corresponding to the plurality of first conductive portions are formed on the side surface of the rotating portion. It is desirable that the two conductive portions are formed in parallel.
Furthermore, it is desirable that the first conductive portion is formed in a semicircular cross section, and the plurality of rotating pieces are rotatably held by the first conductive portion.

By comprising in this way, since the electrically conductive path which supplies electric power to the door for vehicles consists of the 1st wire harness and the 2nd wire harness which were separated into two, and the hinge part which connects them electrically When the vehicle door is opened, the first and second wire harnesses do not bend themselves regardless of the rotation of the arm.
Therefore, disconnection of the electric wire in the wire harness can be prevented, and the wiring harness can be easily arranged. Furthermore, since the extra length portion of the conventional wire harness is not required, design restrictions can be greatly reduced.

  According to the present invention, in a luggage door or back door opening / closing device of an automobile, power is supplied to the door side via a wire harness, and the wiring harness can be easily arranged and disconnected. It is possible to provide a vehicle door opening and closing device that does not occur.

FIG. 1 is a perspective view of a vehicle door opening and closing apparatus according to the present invention. FIG. 2 is a perspective view of a bracket provided in the vehicle door opening and closing device of FIG. 1 and a hinge portion provided on the bracket, and shows a state when the door is closed. FIG. 3 is a perspective view of a bracket provided in the vehicle door opening and closing device of FIG. 1 and a hinge portion provided in the bracket, and shows a state when the door is opened. FIG. 4 is a side view of a hinge portion provided in the vehicle door opening and closing device of FIG. 1 and shows a state when the door is closed. FIG. 5 is a side view of a hinge portion provided in the vehicle door opening and closing device of FIG. 1 and is a view showing a door disclosure state. 6 is a cross-sectional perspective view of an arm-side member provided in the vehicle door opening and closing device of FIG. FIG. 7 is a perspective view of a body side member provided in the vehicle door opening and closing device of FIG. 1. FIG. 8 is a cross-sectional view taken along the line AA in FIG. FIG. 9 is a view showing a conventional luggage door opening and closing device. FIG. 10 is a view for explaining a wire harness provided in a conventional luggage door opening and closing device.

Hereinafter, embodiments of the present invention will be described based on the embodiments shown in the drawings. FIG. 1 is a perspective view of a vehicle door opening and closing apparatus according to the present invention. In this embodiment, a luggage door opening / closing device is shown as a vehicle door.
Moreover, below, the structure of each part which showed the same part with the same code | symbol is each quoted and demonstrated. Further, in each of the drawings described below, in order to avoid complication, only each representative part is indicated by a reference symbol, and a part of the reference symbol is appropriately omitted depending on the drawing.

A vehicle door opening / closing device 1 according to the present invention is supported by a bracket 2 fixed to a vehicle body (not shown), a hinge portion 3 provided on the bracket 2, and the hinge portion 3 so as to be rotatable. And a U-shaped arm 4.
One end 4a of the arm 4 is connected to a luggage door (not shown), and the arm 4 rotates about the hinge portion 3 as the luggage door opens and closes.
On the U-shaped arm 4, one end 5 a of the link member 5 is rotatably provided at a position near the hinge portion 3, and the other end 5 b is connected to one end 6 a of the elastic spring 6. ing. The other end 6b of the spring 6 is rotatably connected to the bracket 2, whereby a biasing force of the spring is applied to the opening / closing operation of the luggage door, thereby facilitating the operation.

In the present invention, the hinge portion 3 is particularly characterized. Then, the structure of this hinge part 3 is demonstrated in detail.
FIG. 2 is a perspective view of the bracket 2 and the hinge portion 3 provided thereon, and shows a state when the door is closed. FIG. 3 shows a state when the door is opened.
As shown in FIGS. 2 and 3, the wire harness 10 (first wire harness) on the vehicle body (not shown) side is provided along the bracket 2, and the distal end portion 10 a (connector) thereof is the hinge portion 3. It is connected to the. The wire harness 10 is fixed to the bracket 2 by a clamp 9.

On the other hand, a wire harness 11 (second wire harness) on the luggage door (not shown) side is provided along the arm 4, and a tip end portion 11 a (connector) is also connected to the hinge portion 3. The wire harness 11 is fixed along the arm 4 by a clamp (not shown).
Here, as shown in FIG. 3, when the luggage door is opened, even if the arm 4 is largely rotated with respect to the bracket 2, the conductive path for supplying power to the luggage door as described above has two wire harnesses 10. 11 are separated from each other via the hinge portion 3, the wire harnesses 10 and 11 themselves are not bent.

FIG. 4 is a side view of the hinge part 3 and shows a state when the door is closed, and FIG. 5 shows a state when the door is open.
As described above, the wire harnesses 10 and 11 are each connected to the hinge portion 3. Therefore, the wire harnesses 10 and 11 are electrically connected to each other via the hinge portion 3.
More specifically, the hinge portion 3 includes a body side member 20 and an arm side member 30, the wire harness 10 is connected to the body side member 20 by a connector, and the wire harness 11 is connected to the arm side member 30 by a connector.
The body side member 20 includes a casing portion 22 having an opening 21 below, and the end 4b of the arm 4 is inserted through the opening 21 as shown in FIGS. The arm end portion 4b is rotatably supported with respect to the body side member 20. A predetermined play space is provided in the front-rear direction of the arm end 4b so that the arm 4 can rotate.

FIG. 6 is a cross-sectional perspective view of the arm side member 30, and FIG. 7 is a perspective view of the body side member 20. FIG. 8 is a cross-sectional view taken along the line AA in FIG. 4 (the arm 4 is not shown).
As shown in FIG. 6, the arm side member 30 includes a clamp 31 that is fitted to the arm 4, and the arm side member 30 is fixed to the arm 4 by the clamp 31.
As shown in the figure, the arm side member 30 has a rotating portion 32 having a substantially semi-annular shape (cross-sectional square shape). The rotating portion 32 follows the rotation of the arm 4 and is movable along the circumferential direction around the rotating shaft 23.

The left and right side surfaces of the rotating part 32 function as signal transmission surfaces. A plurality of bus bars 33 (second conductive portions) as conductive portions are formed in parallel on the side surfaces on both the left and right sides, which are formed vertically, in a circular arc shape with the rotation shaft 23 as a center point.
In the present embodiment, three bus bars 33 are formed in parallel along the circumferential direction on one side surface of the rotating portion 32, and three bus bars 33 are similarly formed on the other side surface. The signal can be transmitted. These bus bars 33 are electrically connected to the tip end portion 11a (connector) of the wire harness 11 via the connector portion 34 (that is, the wire harness 11 has six electric wires).
In the present invention, the number of bus bars 33 as the conductive portion is not limited. For example, when more signals are transmitted, more bus bars 33 are arranged in parallel with the side surface of the rotating portion 32. What is necessary is just to form.

On the other hand, the body side member 20 is fixed to the bracket 2, and a pair of substantially semicircles corresponding to the left and right side surfaces of the rotating part 3 of the arm side member 30 above the casing part 22 as shown in FIG. An annular fixing part 24 is provided (only one is shown).
In the pair of fixed portions 24, a plurality of bus bars 26 (first conductive portions) serving as conductive portions each having a semicircular cross section are formed on opposite inner side surfaces, and the rotating portion 32. The bus bar 33 is provided correspondingly. Each of these bus bars 26 is electrically connected to the distal end portion 10a of the wire harness 10 via the connector portion 28 (that is, the wire harness 10 has six electric wires).

Further, the groove-like bus bar 26 holds a plurality of rotary pieces 27, which are spherical conductors, in a freely rotatable manner. The plurality of rotary pieces 27 are provided in a daisy chain along the bus bar 26.
Thereby, in the state where the hinge part 3 is configured by the body side member 20 and the arm side member 30, the bus bar 33 of the rotating part 32 and the bus bar 26 of the fixing part 24 rotate as shown in the sectional view of FIG. Electrical connection is made via a piece 27.
Further, since the plurality of rotary pieces 27 are rotatably provided in the bus bar 26, the rotation portion 32 of the arm side member 30 can be easily rotated with respect to the fixing portion 24 of the body side member 20.
Further, as shown in FIGS. 4 and 5, the luggage door is always rotated with respect to the bus bar 26 of the fixed portion 24 in the rotatable range of the rotating portion 32 from the closed state (FIG. 4) to the open state (FIG. 5). Since there is a region 40 where the bus bar 33 of the portion 32 overlaps, the electrical connection between the body-side wire harness 10 and the luggage door-side wire harness 11 is ensured.

  In order to ensure that the bus bar 33 of the rotating portion 32 and the bus bar 26 of the fixed portion 24 are in contact with the rotating piece 27, as shown in FIG. It is desirable to interpose a plurality of springs 29 between them. With such a configuration, the bus bar 33 of the rotating portion 32 and the bus bar 26 of the fixed portion 24 can be reliably brought into close contact with the rotating piece 27 by the urging force of the spring 29.

According to the door opening and closing apparatus 1 configured as described above, the wire harness 10 on the vehicle body side and the wire harness 11 on the luggage door 50 side are electrically connected via the hinge portion 3 that performs a bending operation. .
That is, since the conductive path for supplying power to the luggage door 50 is composed of the two wire harnesses 10 and 11 and the hinge portion 3 connecting the wire harnesses 10 and 11, the arm 4 is rotated when the luggage door 50 is opened. Regardless, the wire harnesses 10 and 11 do not bend themselves.
Therefore, disconnection of the electric wire in the wire harness can be prevented, and the wiring harness can be easily arranged. Furthermore, since the extra length portion of the conventional wire harness is not required, design restrictions can be greatly reduced.

  In the above-described embodiment, the first and second conductive portions are shown as the arc-shaped bus bars 26 and 33. However, the vehicle door opening and closing device according to the present invention is not limited thereto. As long as the first and second conductive portions are electrically connected to each other, the conductive portions may have other forms (for example, a linear bus bar).

DESCRIPTION OF SYMBOLS 1 Vehicle door opening / closing apparatus 2 Bracket 3 Hinge part 4 Arm 5 Link member 6 Spring 10 Wire harness (1st wire harness)
11 Wire harness (second wire harness)
20 Body side member 21 Opening 24 Fixing part 26 Bus bar (first conductive part)
27 Rotating piece 29 Spring 30 Arm side member 32 Rotating part 33 Bus bar (second conductive part)

Claims (6)

A vehicle door opening and closing device for opening and closing a vehicle door to which power is supplied from the vehicle body side,
A hinge portion installed on the vehicle body via a bracket, an arm having one end rotatably connected to the hinge portion and the other end connected to the vehicle door, and one end provided on the vehicle body side A first wire harness connected to the hinge portion and a second wire harness provided on the vehicle door side and having one end connected to the hinge portion,
The vehicle door opening and closing device, wherein the first wire harness and the second wire harness are electrically connected via the hinge portion. The hinge portion includes a fixed portion provided on the bracket, and a rotating portion provided at one end of the arm and supported rotatably with respect to the fixed portion,
The one end of the first wire harness is electrically connected to the fixed portion, and the one end of the second wire harness is electrically connected to the rotating portion. The vehicle door opening and closing device described. The fixed part has a first conductive part electrically connected to one end of the first wire harness,
The rotating part has a second conductive part electrically connected to one end of the second wire harness,
The said 1st electroconductive part and said 2nd electroconductive part are mutually electrically connected in the range which can rotate the said arm at least, The Claim 1 or Claim 2 characterized by the above-mentioned. Vehicle door opening and closing device. The first conductive portion is formed in an arc shape with a pivot point of the arm as a center point on a side surface of the fixed portion,
The second conductive portion is formed in an arc shape with the pivot axis of the arm as a center point on the side surface of the rotating portion facing the side surface of the fixed portion where the first conductive portion is formed. ,
4. The vehicle according to claim 3, wherein the first conductive portion and the second conductive portion are electrically connected via a conductive rotary piece provided between the first conductive portion and the second conductive portion. Door opener.   A plurality of arc-shaped first conductive parts are formed in parallel on the side surface of the fixed part, and a plurality of arc-shaped second parts respectively corresponding to the plurality of first conductive parts are formed on the side surface of the rotating part. The vehicle door opening and closing device according to claim 4, wherein the conductive portions are formed in parallel.   6. The first conductive portion is formed in a semicircular cross section, and the plurality of rotating pieces are rotatably held by the first conductive portion. Door opening and closing device for vehicles.

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