JP5075604B2 - Vehicle door opening and closing device - Google Patents

Description

  The present invention relates to a vehicle door opening / closing device that automatically opens and closes a door mounted on a vehicle body, and more particularly to an arrangement structure of a feeder line that electrically connects a power supply on the vehicle body side to an electric motor arranged on the door.

  In a vehicle such as an automobile, a door is mounted on a side portion of the vehicle body, and the door is opened and closed to get on and off the driver's seat, front passenger seat, rear seat, and the like. As such doors, side-opening doors using hinges are often used, but in order to secure a large opening while reducing the space required for opening and closing, a parallel link mechanism (parallel crank mechanism) and A vehicle has been developed in which a door is slidably opened and closed in the vehicle longitudinal direction using a slide mechanism.

  On the other hand, in order to facilitate the opening and closing operation of the door, a door opening and closing device has been developed that automatically opens and closes the door using an electric motor as a drive source. In this case, the electric motor is connected to a power source on the vehicle body side via a power supply line such as a harness and is operated by electric power (drive current) supplied from the power source.

  When such a door opening / closing device is applied to a sliding door as described above, the electric motor is disposed inside the door, and the electric motor drives the parallel link mechanism and the sliding mechanism to automatically open the door. Open / close operation is performed. In this case, in order to constantly supply electric power from the vehicle body side to the electric motor disposed in the door, it is necessary to dispose a power supply line between the vehicle body and the door so as not to hinder the automatic opening / closing operation of the door.

For example, Patent Document 1 describes an opening / closing device in which a feeder line is arranged along one link constituting a parallel link mechanism.
Japanese Patent Application Laid-Open No. 10-175483

  However, as described in Patent Document 1, in the structure in which the power supply line is drawn into the door via the link of the parallel link mechanism, the arrangement path length of the power supply line is changed with the sliding operation of the door by the slide mechanism. It will be. For this reason, it is necessary to provide a guide mechanism for absorbing a change in the extra length of the feeder line, and there is a problem that a space for arranging the guide mechanism is required in the door.

  In addition, since the guide mechanism is exposed to the outside, there is a possibility that the guide mechanism may be damaged due to foreign matter being caught in the guide mechanism or impact, and the appearance of the door was not good due to the exposure of the guide mechanism. .

  SUMMARY OF THE INVENTION An object of the present invention is to simplify the arrangement structure of power supply lines and improve the layout of the vehicle door opening / closing device.

A vehicle door opening and closing device according to the present invention is a vehicle door opening and closing device that automatically opens and closes a door mounted on a vehicle body, and includes a slide rail fixed to the door and a slider movable along the slide rail. A slide mechanism including a pair of links rotatably connected to the vehicle body and the slider, and a slide mechanism and the parallel link mechanism disposed on the door. An electric motor that is driven to open and close the door in parallel and a plurality of support pieces that are connected to each other so as to be relatively rotatable by a connecting shaft, and are connected to the vehicle body and the door to support the load of the door. a load support arm, said plurality of supporting pieces, and the vehicle body side support piece by the vehicle body-side support shaft is pivotally connected to the vehicle body, the pivot is rotatably connected to the door by the door side shaft DOO The connecting shaft by and a door-side support piece that is pivotally connected to the vehicle body side support piece, connected to the pre-Symbol power provided to the vehicle body and said electric motor, and the vehicle body side support piece and When the door in the fully closed position is opened in parallel toward the vehicle exterior direction, the vehicle body side support piece and the vehicle body support the vehicle body side support. And the vehicle body side support piece and the door side support piece are bent relative to each other with the connection shaft as an axis, so that the connection shaft and the door side support shaft are bent. And the door and the door-side support piece rotate relative to each other with the door-side support shaft as an axis, so that the connection shaft and the door-side support shaft So that the slack of the feeder line during An intermediate portion between the power supply in line with the electric motor, wound around the connecting shaft from the opening direction side of the door, and that are wound in the door side shaft from the open side of the door It is characterized by.

In the vehicle door opening and closing device of the present invention, the vehicle body side support piece and the door side support piece are configured to open the door in parallel toward the vehicle exterior direction, and the vehicle body side support piece and the door side support piece, There when folded said connecting shaft as the axis, characterized in that the surface of the opening direction side to close toward each other are found respectively.

In the vehicle door opening and closing apparatus according to the present invention, the power supply line is disposed along a surface on the opening direction side of the vehicle body side support piece and a surface on the opening direction side of the door side support piece. Features.

The vehicle door opening and closing device of the present invention includes a cover that is attached to the vehicle body side support piece and the door side support piece and covers the power supply line.

  According to the present invention, the feeder line is arranged on the load support arm that supports the load of the door, and the intermediate portion of the feeder line is wound around the connecting shaft of the load support arm from the door opening direction side to operate the load support arm. Since the accompanying change in the surplus length of the power supply line is absorbed, it is not necessary to separately provide a mechanism for absorbing the surplus length change in the power supply line, and the layout of the vehicle door opening / closing device can be improved. In addition, by winding the middle part of the feeder line around the connecting shaft, it can absorb the extra length change of the feeder line without causing excessive pulling, sudden bending, biting into the door, etc. Therefore, disconnection of the power supply line can be prevented, and the durability of the vehicle door opening and closing device can be improved.

Further, according to the present invention, when the door is opened from the fully closed position in parallel to the vehicle outward direction, the vehicle body side support piece and the vehicle body rotate relative to each other about the vehicle body side support shaft, and the vehicle body side support piece And the door-side support piece are turned relative to each other about the connecting shaft and bent, so that the slack of the power supply line between the connecting shaft and the door-side support shaft is increased. On the other hand, the door and the door-side support piece rotate relative to each other about the door-side support shaft, so that the slack of the power supply line between the connecting shaft and the door-side support shaft is reduced. Therefore, when the door is opened, the increase or decrease in the slack of the power supply line is canceled by the connecting shaft part and the door side support shaft part, and the extra length change of the power supply line is absorbed.
According to the present invention, since the power supply line is arranged along the surface on the opening direction side of each support piece constituting the load support arm, the power supply line can be arranged at the shortest distance.

  According to the present invention, since the power supply line is covered with the cover in the portion of the load support arm, the power supply line is protected by the cover, and the durability of the vehicle door opening / closing device is improved and its appearance (aesthetic appearance). Can be better.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing a part of a sedan type vehicle. A front door 13 is mounted on a side portion of a vehicle body 12 of the vehicle 11 in order to open and close a passenger seat and a passenger seat entrance / exit. Yes.

  FIG. 2 is a perspective view showing details of a mounting portion of the front door shown in FIG. 1 to the vehicle body. The front door 13 is a vehicle door opening / closing device 21 (hereinafter referred to as an opening / closing device) according to an embodiment of the present invention. 21) is supported by the vehicle body 12 so as to be freely opened and closed, and is automatically opened and closed by the opening and closing device 21. The opening / closing device 21 has two opening / closing modes, and the front door 13 is either a sliding mode that opens / closes in the vehicle front-rear direction or a swing mode that opens / closes swinging around the front end of the door. It is designed to open and close.

  As shown in FIG. 2, the opening / closing device 21 has a base member (base) 22 formed of a steel material or the like, and this base member 22 is a pair of members arranged with the opening / closing central axis facing the vehicle body vertical direction. It is attached to the vehicle body 12 via hinges 23 and can swing about the opening / closing central axis of these hinges 23. Further, a lock mechanism 24 is provided between the base member 22 and the vehicle body 12, and the base member 22 is fixed to the vehicle body 12 by the lock mechanism 24 so that the base member 22 becomes a part of the vehicle body 12. It can be done.

  FIG. 3 is a perspective view showing a main part of the opening / closing device shown in FIG. 2. The opening / closing device 21 has a base plate 31 fixed to the lower surface of the front door 13, and a slide mechanism 32 is provided on the base plate 31. Is provided. The slide mechanism 32 has a slide rail 33 fixed to the base plate 31, and a slider 34 is attached to the slide rail 33. The slide rail 33 is formed in the shape of a rod having a circular cross section and is arranged with its axial direction directed in the vehicle front-rear direction. The slider 34 is movable along the slide rail 33 on the base plate 31.

  The opening / closing device 21 includes a parallel link mechanism 35 (parallel crank mechanism), and the slider 34 is connected to the base member 22 (vehicle body 12) by the parallel link mechanism 35. Each of the parallel link mechanisms 35 has a pair of links 38 (connections) each having one end rotatably connected to the lower surface of the base member 22 by a pin member 36 and the other end rotatably connected to the slider 34 by a pin member 37. Arm), and these links 38 are arranged substantially in parallel. When the parallel link mechanism 35 is actuated, the slider 34 is guided by the parallel link mechanism 35, whereby the front door 13 is pulled out from the fully closed position in the vehicle outward direction, that is, parallel to the vehicle body outside. Further, when the slide mechanism 32 is operated in a state where the front door 13 is pulled out of the vehicle body 12, the front door 13 can move in the vehicle front-rear direction along the outside of the vehicle body 12. .

  In order to control the opening / closing operation of the front door 13, a control arm 41 is provided at the end of the link 38 arranged on the vehicle interior side on the slider 34 side, and a base plate is used to control the control arm 41. A guide rail 42 is fixed to 31.

  The control arm 41 is formed integrally with the link 38 at the distal end portion of the link 38, and the axial direction thereof is directed in a direction orthogonal to the axial direction of the link 38. That is, the link 38 and the control arm 41 are integrally formed in an L shape, and the control arm 41 is supported by the slider 34 together with the link 38 so as to be rotatable. On the other hand, the guide rail 42 includes a straight portion 42a extending in the vehicle front-rear direction in parallel with the slide rail 33, and a curved portion 42b continuous with the straight portion 42a and bent with respect to the straight portion 42a. The curved portion 42b is a straight portion 42a. In contrast to this, it is formed in a curved shape that bends in the vehicle outward direction, and is disposed on the vehicle front side with respect to the straight portion 42a. Further, the guide rail 42 is provided with a guide groove 42c, and an engagement pin 41a provided at the tip of the control arm 41 is engaged with the guide groove 42c so as to be guided to the guide groove 42c movably. It has become. As a result, when the slider 34 moves along the slide rail 33 and the engaging pin 41a provided at the tip of the control arm 41 is guided to the curved portion 42b of the guide rail 42, the control arm 41 rotates and is parallel. The link mechanism 35 is activated. When the engaging pin 41a is guided by the linear portion 42a of the guide rail 42, the control arm 41 does not rotate and the parallel link mechanism 35 does not operate.

  As shown in FIG. 3, a slide actuator 51 is provided inside the front door 13 for driving the slide mechanism 32 and the parallel link mechanism 35 to open and close the front door 13. The slide actuator 51 has an electric motor 52 and a drum 53 that is rotationally driven by the electric motor 52, and is fixed to a predetermined location inside the front door 13. An open side cable 54a and a close side cable 54b are wound around the drum 53 a plurality of times in opposite directions, and the open side cable 54a is connected to the slider 34 from the vehicle rear side via a reversing pulley 55a. 54b is connected to the slider 34 from the vehicle front side via the reversing pulley 55b. Thus, when the electric motor 52 is operated and the open cable 54a is wound around the drum 53, the slider 34 is pulled by the open cable 54a and moves toward the stroke end of the slide rail 33 on the vehicle rear side. On the contrary, when the electric motor 52 rotates in the reverse direction and the closed cable 54b is wound around the drum 53, the slider 34 is pulled by the closed cable 54b and moves toward the stroke end of the slide rail 33 on the vehicle front side.

  As shown in FIG. 2, in the opening / closing device 21, a load support arm 61 connected to the base member 22 and the front door 13 is provided between the base member 22 (vehicle body 12) and the front door 13, and the front door The load 13 is supported by the load support arm 61 so that the load of the front door 13 is not supported by the slide mechanism 32 or the parallel link mechanism 35.

  FIG. 4 is a perspective view showing details of the load support arm shown in FIG. 2, and the load support arm 61 includes a pair of support pieces 62, 63, a vehicle body side support piece 62 and a door side support piece 63. These support pieces 62 and 63 are made of steel and are each formed in a plate shape having a substantially rectangular outer shape. One end of the vehicle body side support piece 62 is rotatably connected to the base member 22 by a vehicle body side support shaft 64, and one end of the door side support piece 63 is rotatably connected to the front door 13 by a door side support shaft 65. ing. Further, the other end of the vehicle body side support piece 62 and the other end of the door side support piece 63 are connected by a connecting shaft 66, and the support pieces 62 and 63 are rotatable relative to each other about the connecting shaft 66. . Each of the support shafts 64 and 65 and the connecting shaft 66 are arranged in parallel with each other with the axial direction directed in the vehicle vertical direction, whereby the load support arm 61 is connected to the central portion of the pair of support pieces 62 and 63 (connecting). It can be bent at the shaft 66 portion and can be rotated with respect to the base member 22 and the front door 13 so as to support the load of the front door 13 while following the opening and closing operation of the front door 13. .

  Reference numeral 67 denotes a stopper for preventing the load support arm 61 from bending in the reverse direction.

  FIGS. 5A to 5D are explanatory views showing the operating state of the opening / closing device in the slide mode, and FIGS. 6A to 6C show the operating state of the load support arm when the opening / closing device is operating. It is explanatory drawing shown. FIGS. 7A and 7B are explanatory diagrams showing the operating state of the switchgear in the swing mode.

  Next, the opening / closing operation | movement of the front door 13 by such an opening / closing apparatus 21 is demonstrated.

  In the opening / closing device 21, the opening / closing mode of the front door 13 can be switched between the slide mode and the swing mode by controlling the lock mechanism 24. When the lock mechanism 24 is in the fastened state, the base member 22 becomes a part of the vehicle body 12, and the opening / closing device 21 is set to the slide mode. The opening / closing operation of the front door 13 in the slide mode will be described below.

  As shown in FIG. 5A, when the front door 13 is in the fully closed position, the slider 34 is located at the stroke end of the slide rail 33 on the vehicle front side, and the engagement pin 41a of the control arm 41 is the guide rail 42. Each link 38 is in a state where its axial direction is directed in the vehicle front-rear direction.

  From this state, when the slide actuator 51 is actuated and pulled by the open cable 54a and the slider 34 starts to move along the slide rail 33 toward the stroke end of the slide rail 33 on the vehicle rear side, FIG. As shown in b), the engaging pin 41 a of the control arm 41 is guided by the curved portion 42 b of the guide rail 42, and the control arm 41 rotates about the pin member 37. Thereby, the parallel link mechanism 35 operates and the front door 13 is gradually pulled out in the vehicle outward direction. Then, as shown in FIG. 5C, when the front door 13 is opened to the position where each link 38 is orthogonal to the axial direction of the slide rail 33, the engagement pin 41 a is straight from the curved portion 42 b of the guide rail 42. Reaching the part 42a, the rotation of the control arm 41, that is, the operation of the parallel link mechanism 35 is stopped.

  From this state, when the slider 34 moves along the slide rail 33 toward the stroke end on the rear side of the vehicle, the engaging pin 41a of the control arm 41 is guided to the straight portion 42a of the guide rail 42, and the front door 13 is moved to the vehicle body. 12 slidably moves along the outside of the vehicle forward. As shown in FIG. 5D, when the slider 34 reaches the stroke end of the slide rail 33 on the vehicle rear side, the operation of the slider 34 is stopped and the front door 13 is fully opened.

  As described above, in the opening / closing device 21, the slide mechanism 32 and the parallel link mechanism 35 are driven by the electric motor 52 by moving the slider 34 along the slide rail 33 by the electric motor 52. The front door 13 can be automatically opened and closed by continuously performing a pulling operation for pulling 13 from the fully closed position to the outside of the vehicle body and a sliding operation for sliding the front door 13 in the vehicle longitudinal direction after being pulled out.

  Further, while the front door 13 is moved from the fully closed position to the fully open position by the operation of the opening / closing device 21, the load support arm 61 is connected to the vehicle body 12 (base) as shown in FIGS. Between the member 22) and the front door 13, the opening and closing operation of the front door 13 is followed while being bent toward the opening direction side (vehicle front side) of the front door 13.

  On the other hand, when the lock mechanism 24 is released, the opening / closing device 21 is set to the swing mode. Hereinafter, the opening / closing operation of the front door 13 in the swing mode will be described.

  As shown in FIG. 7A, when the slider 34 is stopped at the stroke end on the fully closed side of the slide rail 33 and the front door 13 is in the fully closed position, the lock mechanism 24 is released. The base member 22 can swing about the opening / closing central axis of the hinge 23 with respect to the vehicle body 12. Thereby, as shown in FIG.7 (b), the front door 13 can be opened and closed manually by a swing type. At this time, the parallel link mechanism 35 does not operate, and the front door 13 opens and closes integrally with the base member 22 in a swing manner.

  Thus, by switching the open / close mode between the slide mode and the swing mode, it is possible to improve the convenience for the user in response to various open / close states.

  FIG. 8 is an explanatory diagram showing the arrangement of power supply lines that connect the control device mounted on the vehicle body and the electric motor.

  In order to control the operation of the electric motor 52 (slide actuator 51), the electric motor 52 is equipped with a control device. This control device is a so-called microcomputer having a CPU, a memory, and the like. From a battery 71 as a power source mounted on the vehicle body 12 in response to a command signal from a front door opening / closing switch (not shown), an electric motor 52 is supplied. It is designed to supply power towards.

  As shown in FIG. 8, a power supply line 72 is connected to the battery 71 and the electric motor 52, and power is supplied from the battery 71 to the electric motor 52 via the power supply line 72. The feeder 72 is formed by covering a wire formed of a conductor with an insulator such as a resin, and is bundled with positive and negative wires, a control wire, and the like, and has a harness shape in which connectors 73 are provided at both ends. Is formed. Each connector 73 is connected to the battery 71 and the electric motor 52.

  The power supply line 72 is also used for power supply to other electrical components such as an electric motor for driving the window mounted on the front door 13, and the drive signal for the electrical components is also transmitted together with the power supply line 72. Signal lines and the like for transmission to the vehicle body side are also routed.

  In the opening / closing device 21, in order to facilitate the arrangement of the power supply line 72 between the control device 71 arranged on the vehicle body 12 and the front door 13 that opens and closes with respect to the vehicle body 12, The feeder line 72 is routed between the vehicle body 12 and the front door 13. That is, as shown in FIG. 8, the feeder 72 is guided from the control device 71 to the load support arm 61 so as to pass outside the vehicle body 12 with respect to the vehicle body side support shaft 64, and each support of the load support arm 61 is supported. It arrange | positions along the surface 62a, 63a (surface which faces the outer side of the vehicle body 12 when the front door 13 exists in a fully closed position) of the front door 13 of the piece 62, 63, and the inside of the front door 13 from there And is connected to the electric motor 52.

  Since the connection position of the load support arm 61 with respect to the base member 22 and the front door 13 does not change, even if the front door 13 is opened and closed by disposing the feed line 72 on the load support arm 61, the arrangement path of the feed line 72 Changes can be minimized. Thereby, a mechanism for absorbing the extra length change of the feeder line 72 is not required, and the switchgear 21 can be downsized and its layout can be improved.

  Further, in this opening / closing device 21, even if the load support arm 61 is bent between the vehicle body 12 and the front door 13 in accordance with the opening / closing operation of the front door 13, a surplus length change is not caused in the power supply line 72. An intermediate portion of the electric wire 72 is wound around the connecting shaft 66 and the door side support shaft 65.

  As shown in FIG. 8, the middle portion of the power supply line 72 arranged along the opening direction side surfaces 62 a and 63 a of the support pieces 62 and 63 is the opening direction side of the front door 13, that is, the opening direction side surface 62 a. , 63 a is wound around the connecting shaft 66, whereby the intermediate portion of the feeder line 72 is arranged so as to go around the connecting shaft 66. Further, the intermediate portion of the power supply line 72 that is drawn into the front door 13 is disposed along the opening direction side surface 63 a of the door side support piece 63 and the opening direction side of the front door 13 (the door side support piece 63. Of the connecting shaft 66, which is wound around the door-side support shaft 65, so that the intermediate portion of the feeder 72 is arranged around the door-side support shaft 65. Has been. The portion of the power supply line 72 wound around the connecting shaft 66 and the door-side support shaft 65 is wound with a predetermined slack (predetermined winding allowance) while shifting in the axial direction with respect to the connecting shaft 66 and the door-side support shaft 65. Thus, the support pieces 62 and 63 with the connecting shaft 66 and the door-side support shaft 65 as the center are not obstructed.

  As shown in FIG. 4, a cover 74 is attached to the surface 62 a on the opening direction side of the vehicle body side support piece 62. The cover 74 is formed in a long shape from the vehicle body side support shaft 64 to the connection shaft 66 by a resin material, and a portion between the connection shaft 66 of the power supply line 72 and the vehicle body side support shaft 64 is the cover 74. Covered by. Further, a lead-out port 74 a is provided at one end of the cover 74 on the side of the vehicle-body support shaft 64, and the power supply line 72 is drawn from the lead-out port 74 a to the outside of the cover 74 and drawn into the vehicle body 12. It has become. Similarly, a cover 75 is attached to the surface 63 a on the opening direction side of the door-side support piece 63. The cover 75 is formed in a long shape from the connecting shaft 66 to the door-side support shaft 65 by a resin material, and a portion between the connecting shaft 66 and the door-side support shaft 65 of the power supply line 72 is the cover 75. Covered by. Further, a drawer port 75a is provided at one end of the cover 75 on the door side support shaft 65 side, and the power supply line 72 is drawn from the drawer port 75a to the outside of the cover 75 and drawn into the front door 13. It is like that.

  FIGS. 9A to 9C are explanatory views showing the state of the feeder line during the opening / closing operation of the front door.

  As shown in FIG. 9A, when the front door 13 is in the fully closed position, the load support arm 61 has a linear shape in which the support pieces 62 and 63 are arranged in parallel with the front door 13 in the vehicle front-rear direction. The feeder line 72 is wound around the connecting shaft 66 and the door-side support shaft 65 with a predetermined slack.

  When the opening / closing device 21 starts the automatic opening operation from this state, as shown in FIG. 9B, the front door 13 moves in the opening direction while being kept in parallel, and the load support arm 61 is moved accordingly. The support pieces 62 and 63 are bent with the connecting shaft 66 as an axis so that the surfaces 62a and 63a on the opening direction side close to each other, that is, the opening direction side. When the load support arm 61 is bent with the connecting shaft 66 as an axis, the intermediate portion of the power supply line 72 is unwound from the connection shaft 66, and accordingly, the power supply line 72 between the connection shaft 66 and the door-side support shaft 65 is unwound. Looseness increases. On the other hand, at this time, the door-side support piece 63 rotates to the opposite side with respect to the connecting shaft 66 about the door-side support shaft 65. At this time, the power supply line 72 is connected to the door-side support shaft 65. Since the winding is wound with a predetermined slack (a predetermined winding allowance), the power supply line 72 is wound around the door-side support shaft 65 by an amount corresponding to the additional winding allowance, and accordingly, the connecting shaft 66 and the door-side support shaft 65 The slack of the feeder line 72 during the interval is reduced. Therefore, when the load support arm 61 is bent along with the opening / closing operation of the front door 13, the increase / decrease in the slack of the power supply line 72 is canceled out by the connecting shaft 66 portion and the door side support shaft 65 portion. The long change will be absorbed by the winding part.

  Next, when the front door 13 is further opened and reaches the fully open position as shown in FIG. 9C, the load support arm 61 returns from the bent state to the linearly extended state. Thus, contrary to the case shown in FIG. 9B, the intermediate portion of the power supply line 72 is connected to the connection shaft 66 so as to reduce the slackness of the power supply line 72 between the connection shaft 66 and the door side support shaft 65. While being wound up, the feed line 72 is rewound from the door side support shaft 65 so as to increase the slackness of the feed line 72 between the connection shaft 66 and the door side support shaft 65. The increase / decrease in the slack of the feeder line 72 is canceled out at the winding portion of the support shaft 65, and the extra length change of the feeder line 72 is absorbed.

  As described above, in the opening / closing device 21, the feeder line 72 is arranged on the load support arm 61, routed between the vehicle body 12 and the front door 13 via the load support arm 61, and an intermediate portion of the feeder line 72 is loaded. Since the connecting shaft 66 of the support arm 61 and the door-side support shaft 65 are wound from the opening direction side, it is possible to absorb a change in the surplus length of the feeder 72 due to the operation of the load support arm 61. Therefore, it is possible to reduce the size of the switchgear 21 and improve the layout thereof without requiring another mechanism for absorbing the extra length change of the feeder line 72. Further, by winding the intermediate portion of the power supply line 72 around the connecting shaft 66 and the door-side support shaft 65, excessive pulling or abrupt bending, biting into the front door 13 or the like occurs during the opening / closing operation of the front door 13. Therefore, it is possible to absorb the change in the extra length of the power supply line 72, thereby preventing the power supply line 72 from being disconnected and improving the durability of the switchgear 21.

  Further, in the opening / closing device 21, since the feeder line 72 is arranged along the surfaces 62a and 63a on the opening direction side of the respective support pieces 62 and 63 of the load support arm 61, the arrangement path of the feeder line 72 is the shortest. It can be a distance. Thereby, the length of the feeder 72 can be shortened, and the cost can be reduced.

  Further, in the opening / closing device 21, since the power supply line 72 is covered by the covers 74, 75 attached to the support pieces 62, 63, the power supply line 72 is protected from the outside by the covers 74, 75, and this opening / closing is performed. The durability of the device 21 can be improved. Further, by covering the power supply line 72 with the covers 74 and 75, the appearance (aesthetic appearance) of the switchgear 21 can be improved.

  It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, in the present embodiment, the opening / closing device 21 is applied to the front door 13 of the vehicle 11. However, the present invention is not limited to this, and may be applied to other doors such as the rear door 81 of the vehicle 11 shown in FIG. It may be.

  In the above-described embodiment, the load support arm 61 is constituted by a pair of support pieces 62, 63. However, the present invention is not limited to this, and two or more support pieces are connected by the connecting shaft 66 to support the load. The arm 61 may be configured. In this case, the power supply line 72 may be wound around at least one of the plurality of connecting shafts 66 provided.

  Further, in the above-described embodiment, the power supply line 72 is wound around the connecting shaft 66 and the door-side support shaft 65. However, the present invention is not limited thereto, and the power supply line 72 may be wound only around the connecting shaft 66. Good.

  Furthermore, in the above-described embodiment, the front door 13 can be switched between the slide mode and the swing mode. However, the present invention is not limited to this, and the present invention can be applied to the opening / closing device 21 that opens and closes only in the slide mode. Good.

  Furthermore, in the above-described embodiment, the control device mounted on the electric motor 52 has been described. However, the present invention is not limited to this, and the control device is provided at an arbitrary position inside the front door 13 or on the vehicle body 12 side. You may make it provide.

It is a perspective view which shows a part of sedan type vehicle. It is a perspective view which shows the detail of the mounting part to the vehicle body of the front door shown in FIG. It is a perspective view which shows the principal part of the opening / closing apparatus shown in FIG. It is a perspective view which shows the detail of the load support arm shown in FIG. (A)-(d) is explanatory drawing which shows the operating state of the switchgear in a slide mode, respectively. (A)-(c) is explanatory drawing which shows the operation state of the load support arm at the time of operation | movement of an opening / closing device, respectively. (A), (b) is explanatory drawing which shows the operating state of the switchgear in swing mode, respectively. It is explanatory drawing which shows arrangement | positioning of the electric power feeding line which connects the control apparatus and electric motor which are mounted in a vehicle body. (A)-(c) is explanatory drawing which shows the state of the electric power feeding line at the time of opening / closing operation | movement of a front door, respectively.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Vehicle 12 Car body 13 Front door 21 Vehicle door opening / closing device 22 Base member 23 Hinge 24 Lock mechanism 31 Base plate 32 Slide mechanism 33 Slide rail 34 Slider 35 Parallel link mechanism 36, 37 Pin member 38 Link 41 Control arm 41a Engagement pin 42 Guide rail 42a Linear portion 42b Curved portion 42c Guide groove 51 Slide actuator 52 Electric motor 53 Drum 54a Open side cable 54b Close side cable 55a, 55b Reverse pulley 61 Load support arm 62 Car body side support piece 62a Open side surface 63 Door side Support piece 63a Open direction side surface 64 Car body side support shaft 65 Door side support shaft 66 Connection shaft 67 Stopper 71 Battery (power supply)
72 Feed line 73 Connector 74, 75 Cover 74a, 75a Drawer port 81 Rear door

Claims (4)

A vehicle door opening and closing device that automatically opens and closes a door attached to a vehicle body,
A slide mechanism comprising a slide rail fixed to the door and a slider movable along the slide rail;
A parallel link mechanism including a pair of links rotatably connected to the vehicle body and the slider,
An electric motor disposed on the door and driving the slide mechanism and the parallel link mechanism to open and close the door in parallel ;
A plurality of support pieces connected to each other by a connecting shaft so as to be relatively rotatable, a load support arm connected to the vehicle body and the door to support a load of the door;
The plurality of support pieces are rotatably connected to the vehicle body by a vehicle side support shaft, and are rotatably connected to the door by a door side support shaft, and the vehicle body by the connection shaft. A door-side support piece rotatably connected to the side support piece,
Connected to a power source provided in front Symbol vehicle body and said electric motor, and having a feed line which is arranged along the vehicle body side support piece and the door-side supporting piece,
When the door in the fully closed position is opened in parallel toward the vehicle exterior direction, the vehicle body side support piece and the vehicle body rotate relative to each other with the vehicle body side support shaft as an axis, and the vehicle body side support piece And the door-side support piece are relatively rotated and bent with the connecting shaft as an axis, thereby increasing the slack of the power supply line between the connecting shaft and the door-side support shaft, The power supply line is configured such that loosening of the power supply line between the connecting shaft and the door-side support shaft is reduced by the relative rotation of the door-side support piece about the door-side support shaft. The intermediate portion between the power source and the electric motor is wound around the connecting shaft from the opening direction side of the door, and wound around the door-side support shaft from the opening direction side of the door. A vehicle door opening and closing device. 2. The vehicle door opening and closing device according to claim 1, wherein the vehicle body side support piece and the door side support piece are configured such that the door is opened in parallel toward the vehicle exterior direction, and the vehicle body side support piece and the door side are opened. when the support piece bends the connecting shaft as the axis, the vehicle door lock device, wherein the the surface of the opening direction side to close toward each other are found respectively. 3. The vehicle door opening and closing device according to claim 2 , wherein the power supply line is disposed along a surface on the opening direction side of the vehicle body side support piece and a surface on the opening direction side of the door side support piece. A door opening and closing device for a vehicle. The vehicle door opening and closing device according to any one of claims 1 to 3, further comprising a cover attached to the vehicle body side support piece and the door side support piece and covering the power supply line. Door opener.

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