JP2000096910A - Door opening/closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door opening/closing device facilitating opening or closing motion of a door from the inside of a vehicle. SOLUTION: Then closing a front door fully opened in a sit down state, a switch is manipulated to the closing side. Then, the closing manipulation of the switch 42 is detected (S10) and a second limit switch is judged whether it is switched on or not (S11). In this time, since the front door is positioned in the closing motion zone from the fully opened position to the middle position, the turning-on actuation of the second limit switch is detected and the driving motor is driven reversely (S12). After a waiting time until a specified delaying time DT elapses (S13), an electromagnetic clutch is turned on to drive the front door to the closing direction (S14). When the front door reaches the middle position and the second limit switch is turned off (S16), the driving motor stops (S17) and the electromagnetic clutch is turned off (S18) and then, the motion of the front door to the closing direction is stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening and closing device for opening and closing a doorway of a vehicle.

[0002]

2. Description of the Related Art Conventionally, a door handle is provided inside a door for opening and closing a doorway of a vehicle, and the door can be opened and closed from a vehicle interior by operating the door handle. The door is configured to be openable to a predetermined angle, and the angle is set to an angle at which the door handle can be operated from a riding position.

[0003]

However, in the door, the opening angle is set to a predetermined angle, so that the opening of the door is limited,
There was a problem that it was difficult to get on and off.

In order to solve this problem, it is conceivable to increase the door opening angle and widen the door opening degree. In this case, however, the door handle cannot be operated from the boarding position, and the vehicle cannot be operated from the passenger compartment. A new problem arises in that it becomes difficult to close the door.

The present invention has been made in view of such a conventional problem, and can easily close a door from a vehicle compartment even when a large opening angle of the door is set. It is an object to provide a door opening / closing device.

[0006]

According to a first aspect of the present invention, there is provided a door opening / closing apparatus for transmitting power of a drive motor via a clutch to a door pivotally supported by a vehicle body. A door provided with an opening / closing mechanism that pivots in the opening / closing direction by a link, and an intermediate position between a fully closed position in which the door closes the entrance and a fully open position in which the entrance is fully opened. An opening / closing device, wherein the door is located in a closing operation region from the fully open position to the intermediate position, a closing operation region detecting means, and when an operation switch is operated to close the door, the door is closed. A closing direction rotating means for rotating the drive motor in a closing direction while the closing operation area detecting means detects that the drive motor is positioned in the closing operation area; and the closing direction rotating means rotates the drive motor. When I let you A closing clutch-on means for turning on the clutch after a predetermined delay time, and a closing operation for stopping the drive motor and turning off the clutch when the door reaches outside the closing operation area. Stopping means.

[0007] That is, the opening angle of the door is set larger than usual, the fully open position of the door is set at a position away from the boarding position, and the intermediate position set between the fully open position and the fully closed position of the door. The case where the position is set within an accessible range of a door handle provided inside the door from the riding position will be described as an example.First, the door is
If the door handle is located in the closed operation area from the fully open position to the intermediate position, that is, if the door handle is not reachable from the riding position, this is detected by the closed operation area detecting means. At this time, when the operation switch is operated to turn on the closing operation, the drive motor rotates in the closing direction while the closing operation area detecting means detects that the door is located in the closing operation area. It is rotated in the closing direction by the means. Then, after a lapse of a predetermined delay time from the time when the drive motor is rotated, the clutch for transmitting the power of the drive motor is turned on by the closing clutch on means, and the door is closed by the link of the opening / closing mechanism. When the door reaches the outside of the closing operation area by being rotated in the direction, specifically, when the door reaches a range where the door handle can be reached from the riding position, the driving by the closing operation stopping means is performed. The motor is stopped and the clutch is turned off.

Further, in the door opening and closing apparatus according to the second aspect, an opening operation area detecting means for detecting that the door is located in an opening operation area from the intermediate position to a position immediately before the full opening position, and an operation switch. When the opening operation ON operation is performed, while the opening operation region detecting unit detects that the door is located in the opening operation region, an opening direction rotating unit that rotates the drive motor in an opening direction. When a predetermined delay time has elapsed from the time when the opening direction rotating means has rotated the drive motor, when the opening clutch-on means for turning on the clutch, and when the door reaches outside the opening operation area, Opening operation stopping means for stopping the drive motor and turning off the clutch.

That is, when the door is located in an open operation area from the intermediate position to a position immediately before the full open position, that is, in a range where the door handle cannot be reached from the riding position, this is an open operation area detection. Detected by means. At this time, when the operation switch is operated to turn on the opening operation, while the opening operation area detecting means detects that the door is located in the opening operation area, the drive motor is in the opening direction. It is rotated in the opening direction by the rotating means.
Then, after a lapse of a predetermined delay time from the time when the drive motor is rotated, a clutch for transmitting the power of the motor is turned on by an open-time clutch-on means, and the door is opened in the opening direction by a link of an opening / closing mechanism. The drive motor is stopped by the opening operation stopping means when the door reaches the position just before the full opening position, specifically, when the door reaches the position immediately before the full opening position by being rotated to the outside. At the same time, the clutch is turned off.

Further, in the door opening and closing device according to the third aspect, the base member provided with the drive motor, the clutch and the link is accommodated in a pillar.

That is, the base member provided with the drive motor, the clutch and the link is provided in the vicinity of the entrance and exit and housed in a hollow pillar having a closed cross section.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 are views showing a door opening / closing device 1 according to the present embodiment, in which a front door 3 for opening / closing an entrance / exit 2 on a passenger seat side is supported by a vehicle body 5 via a door hinge 4. It is shown.

A front edge of the entrance 2 on the front F side of the vehicle body is formed by a front pillar 11 having a hollow closed cross-sectional shape, and an opening is formed in a front pillar inner 12 constituting the front pillar 11. A part 13 is provided. An opening / closing mechanism 14 inserted through the opening 13 is accommodated inside the front pillar 11, and a base member 15 of the opening / closing mechanism 14 has a flange 16 formed on one side edge of the front pillar inner. 12 are fixed by bolts 17, 17.

The base member 15 has a drive motor 21
And first and second reduction gears 22 and 23 driven by the drive motor 21, an electromagnetic clutch 24 connected to the second reduction gear 23, and an output gear 25 connected to the electromagnetic clutch 24. And a short link 26 pivoted about the output gear 25 are supported. A long hole 27 is provided at the distal end of the short link 26, and an engaging pin 29 protruding from the base end of the long link 28 is movably engaged with the long hole 27. . The long link 28 is formed in a U-shape, and its distal end is supported by a bracket 31 provided at the front end of the front door 3. Thus, when the drive motor 21 is operated and the electromagnetic clutch 24 is turned on, the power of the drive motor 21 is transmitted to the gears 22 and 2.
The transmission is transmitted to the short link 26 and the long link 28 via the electromagnetic clutch 3 and the electromagnetic clutch 24, and the front link 3 is rotated in the opening and closing direction by the long link 28.

As shown in FIG. 2, the opening angle of the front door 3 is set to be substantially 90 degrees when the entrance 2 is fully opened, as compared with a general vehicle. The door opening is set to be wide. As shown in FIGS. 1 and 2, the front door 3
Is fully closed position C in which the entrance 2 is closed, and the entrance 2
Is fully opened, an intermediate position M is set, and the intermediate position M is a door (not shown) provided inside the front door 3 in a state of being seated in a passenger seat. The handle is set within easy reach.
Further, between the fully open position O and the intermediate position M,
The immediately preceding position H is set near the fully open position O (see FIG. 2).

FIG. 3 is a block diagram showing the door opening / closing device 1. The door opening / closing device 1 is constituted mainly by a control section 41. The control unit 41 includes a control circuit mainly formed by a microcomputer, or an electric circuit mainly formed by a relay, an AND circuit, a delay circuit, and the like. The control unit 41 includes the electric clutch 2
4 and the drive motor 21 are connected, and the on / off operation of the electromagnetic clutch 24 and the drive motor 2
The first rotation / stop operation can be performed. The control unit 41 includes, for example, a seesaw-type operation switch 42 provided on an instrument panel (not shown).
Is connected, and when the operation switch 42 is operated to open or close, the control unit 41 is configured to detect the operation.

Further, a first limit switch 51 and a second limit switch 52 are connected to the control section 41. The first limit switch 51 is configured to be in contact with the short link 26 (not shown), and as shown in FIG. 4, the front door 3 is moved from the intermediate position M to the immediately preceding position H. Open operating area up to AO
Is configured to be turned on while in the position. Further, the second limit switch 52 is configured to be in contact with a cam plate built in the drive motor 21, and the front door 3 is in a closed operation area from the fully open position O to the intermediate position M. It is configured to operate on while in the AC position.

The operation of the door opening / closing apparatus 1 according to the present embodiment having the above configuration will be described with reference to the flowcharts shown in FIGS. 5 and 6 and the timing chart shown in FIG.

That is, when the front door 3 at the fully closed position C is opened from the interior of the vehicle (T1 in FIG. 4), the door handle provided inside the front door 3 is operated.
After manually opening the front door 3 to an intermediate position C which is within the reach of the door handle (T2 in FIG. 4), the operation switch 42 provided on the instrument panel is operated to open. Then, the opening operation of the operation switch 42 is detected by the determination in step S1, and it is determined whether the first limit switch 51 is on (S2). At this time, since the front door 3 has reached the intermediate position M and is located in the open operation area AO, the ON operation of the first limit switch 51 is detected, and the drive motor 21 is rotated forward and (S
3) After waiting for a predetermined delay time DT to elapse (S
4) The electromagnetic clutch 24 for transmitting the power of the drive motor 21 is turned on to rotate the front door 3 in the opening direction (S5).

As described above, when the front door 3 is rotated, the drive motor 21 is rotated (T in FIG. 4).
2) When a predetermined delay time DT elapses (T in FIG. 4)
3) Since the electromagnetic clutch 24 for transmitting the power of the drive motor 21 is turned on, the rotation speed of the drive motor 21 is increased under a low load condition, and the front door 3 is rotated with the output increased. The output characteristics of the drive motor 21 can be effectively used.

Then, the operation switch 42 is turned off (S6) or the front door 3 reaches the position H just before the front door 3 is set near the fully open position O, and the first door 3 is moved to the first position.
Until the limit switch 51 is turned off (S7).
The energized state of the drive motor 21 and the electromagnetic clutch 24 was maintained, and as shown at T4 in FIG. 4, the front door 3 reached the immediately preceding position H and the first limit switch 51 was turned off. At this time (S7), the drive motor 21 is stopped (S8), the electromagnetic clutch is turned off (S9), and the rotation of the front door 3 in the opening direction is stopped.

As described above, even when the front door 3 is located at a position where the door handle cannot be reached from the riding position, the front door 3 can be moved by operating the operation switch 42 of the instrument panel. Since it can be opened to the immediately preceding position H at which the opening angle becomes substantially 90 degrees, the ease of getting on and off can be enhanced. At this time, since the drive motor 21 that rotates the front door 3 is stopped at the immediately preceding position H set near the fully open position O, it is possible to prevent an impact on the door hinge 4 due to inertia. Further, at the immediately preceding position H, the drive motor 21 is stopped and the electromagnetic clutch 24 is also turned off.
The opening and closing of the front door 3 can be easily performed manually without receiving the rotation resistance caused by the rotation.

Next, when closing the front door 3 at the fully open position O while sitting on the passenger seat, the operation switch 42 is operated to the closing side (T6 in FIG. 4). Then, the closing operation of the operation switch 42 is detected by the determination in step S10, and it is determined whether or not the second limit switch 52 is on (S11). At this time, since the front door 3 is located within the closing operation area AC from the fully open position O to the intermediate position M, the ON operation of the second limit switch 52 is detected, and the drive motor 2
1 (S12) and a predetermined delay time D
After waiting until T elapses (S13), the electromagnetic clutch 24 is turned on to rotate the front door 3 in the closing direction (S14).

As described above, when the front door 3 is rotated, after the drive motor 21 is rotated (T in FIG. 4).
6) When a predetermined delay time DT elapses (T in FIG. 4)
7) Since the electromagnetic clutch 24 is turned on, the rotation speed of the drive motor 21 is increased under a low load condition,
The front door 3 can be rotated with the output increased, and the output characteristics of the drive motor 21 can be effectively used as in the case of the opening operation.

Then, the operation switch 42 is turned off (S15), or the front door 3 reaches the intermediate position M and the second limit switch 52
4 is turned off (S16), the energized state of the drive motor 21 and the electromagnetic clutch 24 is maintained.
As shown at T8, when the front door 3 reaches the intermediate position M and the second limit switch 52 is turned off (S16), the drive motor 21 is stopped (S17). The electromagnetic clutch 24 is turned off (S18), and the rotation of the front door 3 in the closing direction is stopped.

As described above, the front door 3 is substantially 90
The front door 3 is moved from the riding position to the door handle by operating the operation switch 42 of the instrument panel even if the door is opened at a great opening angle and the door handle cannot be reached from the riding position. Can be closed to the extent that the front door 3 can reach, thereby enabling manual closing of the front door 3 using the door handle.

At this time, from the intermediate position M to the fully closed position C
Since the closing operation of the front door 3 is manually performed, the front door 3 is moved to the fully closed position C by using the power of the drive motor 3.
It is not necessary to change the design such as the lock mechanism and the strengthening of the striker. When the front door 3 reaches the intermediate position M, the drive motor 21 is stopped, and the electromagnetic clutch 24 is turned off. , The front door 3 can be easily closed.

In the door opening / closing apparatus 1 according to the present embodiment, the base member 15 provided with the members constituting the opening / closing mechanism 14 such as the drive motor 21, the electromagnetic clutch 24, and the links 26 and 27 is attached to the door 2. By being housed in the front pillar 11 forming the front edge of the front pillar, the inside of the front pillar 11 having a hollow closed cross-sectional shape can be effectively used. Further, the mounting becomes easier as compared with the case where the opening / closing mechanism 14 is accommodated in the front door 3 provided with a window elevating mechanism and a lock mechanism.

In the present embodiment, the case where the door opening / closing device 1 is installed on the front door 3 on the passenger seat side is described as an example, but it may be installed on another door.

[0030]

As described above, in the door opening and closing device according to the first aspect of the present invention, when the door is located in the closing operation region from the fully open position to the intermediate position, the operation switch is turned on. Thus, the door can be rotated out of the closing operation area, that is, from the intermediate position to the fully closed position by the opening / closing mechanism including the drive motor, the clutch, and the link. Therefore, even when the opening angle of the door is set to be large in order to increase the ease of getting on and off, the intermediate position set between the fully open position and the fully closed position of the door is changed from the riding position to the door position. By setting the door handle within the reach of the door handle provided inside the door, the door can be rotated to the extent that the door handle can be reached, thereby enabling manual operation using the door handle. Door closure can be enabled.

At this time, since the closing operation of the door from the intermediate position to the fully closed position is manually performed, the door is locked compared to the case where the door is moved to the fully open position using the power of a drive motor. There is no need to change the design of the mechanism or the striker. Further, when the door reaches a range where the door handle can be reached from the riding position, the drive motor is stopped, and the clutch is turned off. The door can be manually closed easily. further,
When the door is turned, the clutch for transmitting the power of the drive motor is turned on when a predetermined delay time has elapsed after the drive motor has been rotated. As the number of rotations is increased, the door can be rotated with the output increased, and the output characteristics of the drive motor can be effectively used.

In the door opening / closing device according to the second aspect, the door located in the opening operation area from the intermediate position to the position immediately before the fully open position is moved to the immediately preceding position by turning on the operation switch. Can rotate until it reaches. Therefore, in order to increase the ease of getting on and off,
Even when the opening angle of the door is set to be large, the intermediate position is set within a range where the door handle provided inside the door can be reached from the riding position, so that the door handle is moved from the riding position to the door handle. Even if you can not reach
The door can be opened to a position immediately before the fully open position. As a result, the door opening can be widened,
Ease of getting on and off can be improved.

At this time, the drive motor that rotates the door is stopped at a position immediately before the fully open position, so that an impact on the door hinge due to inertia can be prevented.
In addition, since the drive motor is stopped and the clutch is turned off at the immediately preceding position, the door can be easily opened and closed manually without receiving rotational resistance from the drive motor. Further, when the door is rotated, the clutch for transmitting the power of the drive motor is turned on when a predetermined delay time elapses after the drive motor is rotated. As the number of rotations of the drive motor is increased, the door can be rotated with the output increased, so that the output characteristics of the drive motor can be effectively used as in the case of the first aspect.

Further, in the door opening and closing device according to the third aspect, the base member provided with the drive motor, the clutch and the link is accommodated in a pillar provided near the entrance and exit, so that the hollow closing device is provided. The inside of the pillar formed in the cross-sectional shape can be effectively used. Further, the mounting becomes easier as compared with a case where the window is housed in a door provided with a raising / lowering mechanism and a lock mechanism.

[0035]

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a main part showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a main part showing a state where a front door is opened in the embodiment.

FIG. 3 is a block diagram showing the embodiment.

FIG. 4 is a timing chart showing an operation of the embodiment.

FIG. 5 is a flowchart showing an operation of the embodiment.

FIG. 6 is a flowchart following FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door opening / closing apparatus 2 Doorway 3 Front door 4 Door hinge 5 Body 11 Front pillar 14 Opening / closing mechanism 15 Base member 21 Drive motor 24 Electromagnetic clutch 26 Short link 28 Long link 31 Bracket 41 Control part 42 Operation switch 51 First limit switch 52 Second limit switch C Fully closed position H Immediately before position M Intermediate position O Fully open position AO Open operation area AC Close operation area DT Delay time

Claims (3)

[Claims] An opening / closing mechanism for rotating a door pivotally supported by a vehicle body in an opening / closing direction by a link through which power of a drive motor is transmitted via a clutch, and wherein the door closes a doorway. A door opening / closing device in which an intermediate position is set between a closed position and a fully opened position where the entrance is fully opened, wherein the door is located in a closing operation area from the fully opened position to the intermediate position. Operating means for detecting that the door is positioned within the closing operation area when the operation switch is turned on by the operation switch. Closing direction rotating means for rotating a motor in a closing direction; closing time clutch on means for turning on the clutch after a predetermined delay time has elapsed from the time when the closing direction rotating means has rotated the drive motor; When the serial door reaches outside the closing operation region, to stop the drive motor, a door opening and closing device being characterized in that and a closing operation stopping means for turning off operation of the clutch. 2. An open operation area detecting means for detecting that the door is located in an open operation area from the intermediate position to a position immediately before the full open position, and when an operation switch is turned on, Opening direction rotating means for rotating the drive motor in an opening direction while the opening operation area detecting means detects that the door is located in the opening operation area; and Opening a clutch-on means for turning on the clutch after a predetermined delay time has elapsed from the time of rotating the clutch, and stopping the drive motor when the door reaches outside the opening operation area, and 2. The door opening / closing device according to claim 1, further comprising: an opening operation stopping unit that turns off the door. 3. The door opening and closing device according to claim 1, wherein a base member provided with the drive motor, the clutch, and the link is housed in a pillar.