JP2722895B2 - Automotive door opening and closing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art In a normal automobile door, a hinge is attached to a front end of a door opening formed in an automobile body, and the door is opened and closed around the hinge. Therefore, the door can be opened and closed around its front end, and is fastened to the vehicle body by a lock device provided at the rear end of the door. With such a door,
Since the opening / closing trajectory of the door and the posture of the door at the time of opening / closing are in a single mode, the door opening area for getting on and off the occupant depends on the distance between the free end of the door, that is, the rear end, and the vehicle body. It is determined one-dimensionally. In addition, with such a conventional door, the door opening angle must be increased in order to obtain a sufficient door opening area when an occupant gets on and off the vehicle, and the opening distance between the free end of the door and the vehicle body must be increased. I had to. Therefore, when an occupant gets on or off the road or in a narrow parking lot, the door cannot be fully opened, and the passenger must get on and off the vehicle by passing through the gap between the door and the vehicle body ( JP-A-58-76669
Reference).

[0003]

On the other hand, when the door is automatically closed by driving a motor, a weatherstrip may be provided to ensure watertightness between the door and the vehicle body. Therefore, it is necessary to obtain a large motor output for the closing operation against the resistance. When the door is opened, the rear end of the door and the vehicle body
Enough for passengers without increasing the distance
It is possible to secure a space, moreover, the meshing of the striker member and the latch member in the front and rear end portions of the door, by these latch members is driven by a closure motor, compact the motors for door opening and closing It is an object of the present invention to ensure that the door can be closed while the door is closed.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a hinge arm provided at one end of a door opening formed in a vehicle body so as to be rotatable around a vehicle-side support shaft. A door is attached to the other end of the hinge arm so as to be rotatable around the door-side support shaft with respect to the hinge arm, and the hinge arm is connected to the vehicle-body-side support shaft and rotates the hinge arm with respect to the vehicle body. An arm driving motor that moves, a door driving motor that is connected to the door-side support shaft, and that rotates the door with respect to the hinge arm ;
Arm drive motor and door drive motor
Control means for controlling the respective rotation angles , provided at the front end of the door, a front latch member meshed with a front striker member provided at the front end of the door opening,
A rear latch member provided at a rear end of the door and meshing with a rear striker member provided at a rear end of the door opening; and a front closure motor for rotating the front latch member. If, possess a side closure motor after rotating the rear latch member, wherein, the door
By closing the front striker member
With the front claw in contact with the front latch member.
While driving the jar motor, the rear striker
-When the rear member is in contact with the rear latch
By driving a closure motor, the door
And an opening / closing device for an automobile door characterized by performing control for locking the door.

[0005]

In the door opening / closing device having the above-described structure, the door opening / closing operation is performed by turning the hinge arm with respect to the vehicle body and turning the door itself with respect to the hinge arm. This
The door is opened and closed while keeping the door parallel to the vehicle body.
Space when passengers get on and off
Is secured. In addition, the door was inclined with respect to the body
It can be opened and closed as a state. Further, when closing the door, in the final process after the door is driven from the open state to the closed state to a predetermined angle, the striker member is fastened to the lock parts provided at the front and rear ends of the door. At the same time, the latch member in the lock portion meshes with the striker member by the drive of the closure motor, and the door is pulled toward the vehicle body at both front and rear ends while maintaining the parallel state with respect to the vehicle body. As a result, the arm driving motor and the door driving motor for opening and closing the respective doors are provided.
Even if the driving force of the door itself is small, the door is securely closed and locked against the reaction force of the weather strip.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on illustrated embodiments of the present invention. FIG. 1 is a view showing an automobile body W in which a door opening / closing device of the present invention is incorporated.
Are provided with one door 10 and 11 on each side. Each of the doors 10 and 11 has a hinge arm 1 whose one end is rotatably attached to a front pillar of the vehicle body W.
2 is rotatably attached to the tip. FIG. 2 is a diagram showing a right side portion of the vehicle W shown in FIG. 1, and a basic structure of a hinge arm 12 is shown in FIG. As shown, bearings 13 are vertically screwed to a front pillar F of a vehicle body W, and a vehicle body-side support shaft 14 provided at one end of a hinge arm 12 is connected to these bearings 13. It is rotatably supported. At the other end of the hinge arm 12, a door-side support shaft 15 is provided.
The door-side support shaft 15 is rotatably supported by a bearing 16 adapted to be screwed to the door 11.

As shown in FIG. 2, an arm drive motor 21 is mounted on the vehicle body W by a bracket 17, and a drive shaft of the motor 21 is fitted into a vehicle body-side support shaft 14, and the drive shaft is It is integrated with the vehicle body side support shaft 14. On the other hand, a door driving motor 22 is attached to the door 11 by a bracket 18, and a driving gear 23 fixed to a driving shaft of the motor 22 meshes with a driven gear 24 integrated with the door supporting shaft 15. ing. Each of the motors 21 and 22 has a built-in speed reducer. Therefore, the door 11 is automatically opened and closed by rotating both the hinge arm 12 with respect to the vehicle body W and the door 11 with respect to the hinge arm 12 by driving both motors 21 and 22. Is done. Door 11
Is closed, the door opening S formed in the vehicle body W is closed by the door 11 . The left door 10 shown in FIG. 1 automatically opens and closes by the same structure. FIG.
Indicates a vehicle W of a type provided with two doors on the left and right, but it is also possible to automatically open and close each door of a vehicle body of a type provided with a total of four doors on the front, rear, left and right as a similar structure. good.

When the door 11 is closed, a front striker member 25a is attached to a front pillar F of the vehicle body W so as to fasten the door 11 and the vehicle body W to each other, and the front striker member 25a is attached to the front striker member 25a. A front lock portion 26a to be fastened is provided at the front end of the door 12, and a latch member described later is incorporated in the lock portion 26a. Furthermore, the quarter pillar Q of the vehicle body W
A rear striker member 25b is attached, and a rear lock portion 26b fastened to the rear striker member 25b.
Is provided at the rear end of the door 12.
A similar latch member is incorporated in 6b.

The door 11 is provided with the arm driving motor 2 described above.
As shown in FIG. 4, the door 11 can be opened and closed by the door 1 and the door driving motor 22 while maintaining the state parallel to the vehicle body W. 5 (A) to 5 (D) are diagrams showing the movement trajectory of the door 11 when performing the operation of closing the door 11, and as shown in FIG. Since the parallel state is maintained, the clearance between the door 11 and the vehicle body W can be set narrow. However, as shown by a two-dot chain line in FIG. 5, the door 11 may be opened and closed with the door 11 inclined with respect to the vehicle body W.

FIGS. 7 and 8 are schematic views showing an auto-closure for driving a latch member incorporated in the front and rear lock portions 26a and 26b of the door 11, the basic structure of which is disclosed in Japanese Patent Application Laid-Open No. 58-1983. 76669. When the door 11 is closed, the lock portion 26 of the door 11 is closed.
a and 26b approach the striker members 25a and 25b. Then, the lock portions 26a, 2
6b, striker members 25a, 2a shown in FIG.
Latch members 41 to which the members 5b relatively approach each other are incorporated. The latch member 41 is provided with an engagement recess 42 into which the striker member enters, and a connecting rod 43 rotatably mounted inside the door 11.
Is integrated with the latch member 41 at one end. A cam 44 is integrated with the other end of the connecting rod 43.
Further, a latch drive lever 45 is attached to the connecting rod 43 so as to be rotatable with respect thereto. The latch drive lever 45 has a lock projection 45 a and a lock release projection 45 b protruding toward the cam 44. In addition, the locking projection 44a abuts on the locking projection 45a.
And a cam 44 having an unlocking projection 44b abutting against the unlocking projection 45b.
The phase angle θ1 in the rotation direction of the a and 44b is set smaller than the phase angle θ2 of the projections 45a and 45b of the latch drive lever 45. The rotation of the lever 45 is not transmitted to the cam 44.

FIG. 9 shows a door open / close control circuit having such an automatic closure. Latch member 41 and cam 4 incorporated in front lock portion 26a
4, and around the latch drive lever 45, neutral position sensors S1F each including a limit switch, etc.
Half-latched position sensor S2F, full Lula pitch position sensor S3F, and full opening sensor S4F is arranged, the signals from these sensors are sent to the switching control section 50 including a CPU or the like as shown in FIG. 9 It is supposed to be. Further, the rear locking portion 26b has the same structure as the front lock portion 26a, around the like latch member 41, the neutral position sensor S1R, half-latched position sensor S2R, full Lula pitch position sensor S3R, And a full open sensor S4R. The signals from these sensors are sent to the open / close control unit 50. Both half latch sensors S2F, S2R
Outputs an ON signal when the cam 44 is at the half latch position, and the other sensors output an ON signal when the latch drive lever is at the predetermined position.

From the opening / closing control section 50, the front locking section 26
a, the front closure motor 51 for driving the drive lever 45 in the direction indicated by the arrow M and the direction indicated by the opposite arrow N, and the drive lever 4 in the rear lock portion 26b.
Rear closure motor 52 for driving
And so on.

Regarding the operation of the above auto closure,
This will be described with reference to the flowchart shown in FIG. With the door 11 open, the door open / close command switch 53
Is operated and a door closing command for closing the door is issued in step S1, the arm driving motor 21 and the door driving motor 22 are driven in step S2. As a result, the door 11 goes to the half-latch position as shown in FIG. 5C through the states of FIGS. 5A and 5B. This position is the striker member 25a, 25
b comes into contact with the latch member 41, and the latch member 4
1 is slightly rotated together with the cam 44 so that the latch member 41 can be engaged with the striker member. At this position, the cams 44 turn on the half latch sensors S2F and S2R, respectively. If this is detected in step S3, the front and rear closure motors 51 and 52 are driven in step S4. At this time, the arm driving motor 21 and the door driving motor 22 are stopped.

When the closure motors 51 and 52 are driven, the latch drive lever 45 is driven in the N direction in FIG. In step S5, the full latch position sensor S3F
Turns on, it means that the latch member 41 in the front lock portion 26a has reached the full latch position, and the front closure motor 51 is immediately stopped in step S6. Similarly, if the full latch position sensor S3F is turned on in step S7, it means that the latch member 41 in the rear lock portion 26b has reached the full latch position,
In step S8, the rear closure motor 52 is immediately stopped. This state corresponds to FIG. If it is determined in step 9 that both motors 51 and 52 have been stopped, then in step S10 the latch drive lever 4
5 is returned to the neutral position. However, at the time of this return rotation, since the latch drive lever 45 has a play angle with respect to the latch member 41, the latch member 41 is not rotated,
Continue to maintain full latch position. The return to the neutral position is detected by the neutral position sensors S1F and S1R.

Next, a case where the door 11 is opened from a closed state will be described. When a command to open the door 11 is issued, the respective closure motors 51 and 52 are driven in a direction to release the lock, and the latch drive lever 45 is released.
Is rotated clockwise M in FIG. By latching the driving lever 45 in this direction is rotated, first the protrusion 45 b of the latch driving lever 45 comes into contact with the projecting portion 44b of the cam 44 in the fully latched position, further, the latch member 4
1 is rotated to the half latch position. At this position, the half-latch position sensors S1F and S1R are turned on, whereby the motors 21 and 22 are driven to open the door 11. If the sensor detects that the latch member 41 has reached the fully open position, the respective closure motors 51 and 52 are reversed after a predetermined time has elapsed, and the latch drive lever 45 is returned to the neutral position.

FIG. 6 shows the locus of movement of the predetermined portion P when the lock portions 26a and 26b change from the half latch position to the full latch position. FIG. 6A shows a case where the position of the door-side support shaft 15 is offset from the position of the arm-side support shaft 14 to the inside of the vehicle W, and FIG. 6B shows an offset between the two support shafts 14 and 15. The case where the amount is set to zero is shown.

The displacement of the door 11 in the front-rear direction of the vehicle W between the position of the part P in the full latch state and the position of the part PaH in the half-latch state when offset is La. On the other hand, the position of the part P in the full latch state when the offset is zero,
The shift amount of the door 11 in the front-rear direction of the vehicle W at the site PbH in the half-latch state is Lb. As is clear from the comparison of these shift amounts, it is clear that the offset is more effective when the door 1 is shifted from the half latch state to the full latch state.
1 is smaller. Therefore, the clearance between the door 11 and the vehicle when the door is closed can be set smaller, and the degree of freedom in vehicle design increases.
However, when the clearance is relatively widened according to the requirements of the vehicle design, any type may be used.

As described above, up to the half-latch position, the door 11 is moved by the motors 21 and 22 through the hinge arm 12.
Is closed, and then the door 11 is driven by the closure motors 51 and 52 in the closing direction.
Without increasing the torque of the motors 21 and 22 themselves,
The door 11 can be reliably closed against resistance in the closing direction due to the weather strip.

In the particular case shown, the door 11 is connected to the vehicle W
The opening / closing operation is performed while maintaining a parallel state with respect to, so that the clearance between the door 11 and the opening S of the vehicle W can be reduced. However, in the final process of the closing operation, the door 11 is closed. As shown in FIGS. 11 and 12, guide members 61 and 62 are attached to the front and rear of the opening S of the vehicle body W so as to be positioned with high precision, and are rolled along the respective guide members 61 and 62. Rollers 63, 64
Is attached to the door 11. Guide members 61a and 62a are attached to the vehicle body so as to face the respective guide members 61 and 62. Thereby, in the final stage of closing the door 11, the door 11 is positioned at a predetermined position with high accuracy with respect to the vehicle body. In this case, at the final stage when the door 11 is closed, the door driving motor 2
Alternatively, the operation of Step 2 may be stopped so as to be in a free rotation state, and the arm driving motor 21 may perform the closing operation of the door 11. In this way, the posture of the door 11 itself when closed is regulated by the guide members 61 and 62.

[0020]

As described above, according to the present invention, the opening and closing operation of the door is performed by the arm driving motor and the door driving motor . This allows the door to be
It is possible to open and close while maintaining the parallel state
It is possible to secure a space for crew getting on and off
As well as opening and closing the door with the door inclined.
It is also possible to do. In addition, since the final closing operation of the door is performed by the front and rear latch members provided before and after the door, in the final process of the closing operation of the door,
The door is kept parallel to the body while
Attracted toward the body. This allows the door and vehicle
It is possible to narrow the clearance with the opening
You. In addition, the arm drive modes for opening and closing the respective doors
Even if the driving force of the motor for driving the door and the door itself is small , the door can be reliably closed against the reaction force of the weather strip and the door can be locked.

[Brief description of the drawings]

FIG. 1 is a plan view showing an automobile body according to one embodiment of the present invention;

FIG. 2 is a plan view showing a main part of FIG. 1,

FIG. 3 is a perspective view showing a hinge arm;

FIG. 4 is a plan view showing the right door of FIG. 1,

FIG. 5 is a plan view showing an open / closed state of a door;

FIG. 6 is a plan view showing a relationship between a support shaft offset and a door opening / closing trajectory;

FIG. 7 is an exploded perspective view showing the internal structure of the auto closure,

FIG. 8 is a front view showing a state where the components shown in FIG. 8 are assembled;

FIG. 9 is a block diagram showing a control circuit of the door opening / closing device;

FIG. 10 is a flowchart showing an operation state of an automobile door opening / closing device;

FIG. 11 is a plan view showing a guide for guiding a door opening / closing operation,

FIG. 12 is a front view of FIG.

[Explanation of symbols]

10, 11 ... door, 12 ... hinge arm, 14 ... body side support shaft, 15 ... door side support shaft, 21 ... arm drive motor, 22 ...
Door driving motor, 25a, 25b: striker member, 26a, 26b: lock portion, 41: latch member,
45 ... Latch drive lever, 51, 5
2. Closure motor.

Claims (1)

(57) [Claims] An end of a hinge arm is attached to a front end of a door opening formed in an automobile body so as to be rotatable around a body-side support shaft, and the hinge arm is attached to the other end with respect to the hinge arm. hand
Pivotally mount the door around the door side support shaft, a motor for the arm driving to rotate to the connected the automobile body said hinge arm to the vehicle body side support shaft, wherein
A door drive motor connected to a door-side support shaft and rotating the door with respect to the hinge arm ;
Rotation angles of the motor and the door drive motor
A front latch member provided at a front end of the door and engaged with a front striker member provided at a front end of the door opening; and provided on an end portion, and the side latch <br/> member after fit side striker member mesh with after provided at the rear end of the door opening, a front closure motor for rotating the front latch member, the rear possess a side closure motor after turning the side latch member, the control means, by closing movement of the door
The front striker member abuts the front latch member
When the front closure motor is driven in the state
In both cases, the rear striker member is the rear latch member.
Drive the rear closure motor in contact with
Control to lock the door by causing
A door opening / closing device for an automobile.