KR100512009B1 - Locking control method and locking device for vehicle door - Google Patents

Abstract

The vehicle door can be opened and closed while the power consumption is reduced.

The locking switching pin 56 is applied to the locking position by the force of the spring, and the locking means for switching the locking switching pin 56 to the unlocking position by supplying electric power to the solenoid 54 for the vehicle. For locking control of the door. Before the vehicle door is opened, the solenoid 54 is energized to switch the locking changeover pin 56 to the unlocked position, and then the specific time from when the vehicle door begins to open to return to the fully closed position again. The power supply to the solenoid 54 is suspended within the period.

Description

LOCKING CONTROL METHOD AND LOCKING DEVICE FOR VEHICLE DOOR}

The present invention relates to a locking control method and a locking device for locking a door for a vehicle installed in a railway vehicle or the like in a completely closed position.

Conventionally, an apparatus for locking a vehicle door in a fully closed position, comprising an electric drive source such as a solenoid, and using the driving force, in a locked state to fix the door to a completely closed position, and in an unlocked state to open the door. It is well known that it can be converted.

For example, in Japanese Unexamined Patent Application Publication No. 9-199 microfilm, the locking switching member (projection 6 in the same publication) in the same solenoid is projected in the solenoid by the spring resilient force when the electromagnetic coil is not energized. Locking the door by being pushed out by this, when the electromagnetic coil of the solenoid is energized from this state, the locking switching member immerses against the elastic repulsive force of the spring by the electromagnetic force, thereby releasing the locking of the door. An apparatus is disclosed.

In the above locking device, the following locking control is generally performed.

1) With the door locked in the fully closed position, the door opening command is input from the outside to energize the solenoid's electromagnetic coil to drive the locking switching member to the unlocked position (unlocking).

2) Open and close the door.

3) Checking that the door has returned to the fully closed position again, disconnect the energization of the electromagnetic coil from the solenoid, and return the locking switching member to the locking position.

However, in the case of this control method, once the locking is released, the solenoid's electromagnetic coil is energized until the door is returned to the fully closed position. Therefore, the power consumption is large. Becomes remarkable.

In addition, in order to keep the door of a relatively large weight in the locked position, a large current is required, and a long time for supplying such a current to the electromagnetic coil also causes a problem of heat generation. In order to suppress such heat generation, it is necessary to reduce the resistance by increasing the diameter of the coil wire, and there is also a problem that the device becomes larger by an increase in the coil wire diameter.

In view of such circumstances, an object of the present invention is to provide a locking control method and a locking device for a vehicle door that can perform opening and closing of the vehicle door well while suppressing power consumption.

In the locking device as described above, the locking must be released when the vehicle door is opened, and the door is basically separated from the fully closed position, and when the door is opened to some extent, opening and closing of the door regardless of the position of the locking switching member. It can drive.

SUMMARY OF THE INVENTION The present invention has been made in view of this point, and the locking switching member which is switched to the locking position for locking the vehicle door in the fully closed position and the unlocking position for retracting from the locking position to open the vehicle door, and the locking switching member And a spring member for applying a force to the locking position side, and an electronic driving device for receiving the electric power to switch the locking switching member to the unlocking position by resisting the applied force of the spring member. A method of performing locking control of a vehicle door by using a means, wherein the vehicle door starts to open after supplying electric power to the electronic drive device to switch the locking switching member to the unlocked position before the vehicle door is opened. Within the specified period from then until the return to the fully closed position. It is to suspend the power supply to the magnetic drive device.

According to this method, the amount of power supply to the electronic drive device is suspended and the power consumption are reduced within a certain period of time from when the vehicle door starts to open to return to the fully closed position again. Moreover, even if the locking switching member is spaced apart from the unlocking position (for example, switched to the locking position) by the interruption of the power supply during this period, there is no influence on the opening / closing drive of the vehicle door.

Specifically, the interruption of the power supply is preferably started from the time when the door for the vehicle starts to open until the door reaches the fully open position. Thereby, it is possible to make a long time power supply interruption time while starting the opening operation of the vehicle door without problems.

When the vehicle door returns to the fully closed position, the power supply is resumed when the vehicle door is driven in the closing direction in the state of stopping the power supply and reaches a predetermined position immediately before the completely closed position. Preferably, the power supply is stopped again after the vehicle door reaches the fully closed position. According to this control, during the period until the vehicle door reaches the predetermined position, the power supply is reduced by continuing the interruption of the power supply, and the power supply is restarted when the vehicle door reaches the predetermined position to lock switching. By returning the member to the unlocking position, the vehicle door can be returned to the fully closed position without interruption.

Further, the present invention is a locking device for a vehicle door comprising a locking means for locking the vehicle door in a fully closed position and a locking control means for controlling the operation of the locking means, wherein the locking means is configured to lock the vehicle door. A locking switching member which can be switched to a locking position which locks in a completely closed position and an unlocking position which retracts from this locking position to open said vehicle door, and a spring member which applies this locking switching member to the locking position side; And an electronic drive device which is supplied with electric power to switch the locking switching member to the unlocking position by resisting the force of the spring member by the electromagnetic force, and the locking control means includes the position of the vehicle door. Is connected to an opening and closing drive control means for detecting opening and closing and controlling opening and closing, before the vehicle door is opened. Supplying power to the electronic drive device to switch the locking switching member to the unlocking position, and then supplying the power within a certain period of time from when the vehicle door starts to open to returning to the fully closed position again. Will be suspended.

In this locking device, the locking control means is suitable for initiating the interruption of the power supply from the time when the door for the vehicle starts to open until the door reaches the fully open position.

For example, if the power supply is stopped at the time when the acceleration in the opening direction of the vehicle door is finished, the power supply can be stopped at a precise timing at which the door for the vehicle is reliably spaced from the completely closed position. .

Further, the locking control means resumes the power supply to the electronic driving device when the vehicle door is driven in the closing direction in the state of stopping the power supply and reaches a predetermined position immediately before the fully closed position. In addition, it is suitable to stop the power supply again after the vehicle door reaches the fully closed position.

For example, in the case where a slow motion for cushion is performed so that the vehicle door reaches the fully closed position at a low speed in front of the fully closed position, the predetermined position (power supply is resumed at the position where the slow motion is started). Position), the locking switching member can be reliably returned to the unlocking position immediately in front of the complete closing position.

In the present invention, regardless of the specific configuration of the locking means, for example, the locking switching member may be directly engaged with the vehicle door in the fully closed position to lock the vehicle door, and the opening and closing operation of the vehicle door may be performed. It is also possible to indirectly lock the completely closed position of the vehicle door by restraining the movement of the interlocking member interlocking with the vehicle.

For example, the locking means includes an interlocking member that moves from the fully closed corresponding position corresponding to the completely closed position to a predetermined movement limit position in association with the opening of the vehicle door from the fully closed position. Power supply to the electronic drive device of the locking means is stopped while the lock is in the completely closed corresponding position, the locking switching member is switched to the locking position for restraining the interlocking member to the fully closed corresponding position, The movement restriction position is set so that the locking switching member is brought into contact with the interlocking member in a direction parallel to the operating direction by stopping the power supply to the electronic drive device of the locking means while the member is in the movement restriction position. And the interlocking member is in sliding contact with the locking switching member in the contact state. By being able to move to the said fully closed position, it becomes possible to reliably perform both the locking of the door of a vehicle in a fully closed position, and the opening / closing drive of the vehicle door which is spaced apart from a fully closed position.

That is, in this apparatus, when the power supply to the electronic drive device is stopped while the door for the vehicle is spaced from the fully closed position and the interlocking member is moved to the limit position, the locking switching member is applied by the force of the spring member. The interlocking member is brought into contact with the interlocking member in an operating direction of the locking switching member, and the interlocking member can be moved while slidingly engaged with the locking switching member. Thus, for example, the door of the vehicle is completely provided as the electric drive device is not supplied with power. Even when returning to the closed position, the linkage member can return to the completely closed corresponding position in conjunction with this. When the interlocking member returns to the fully closed counterpart, the locking switching member is automatically switched to the locked position by the force of the spring member, thereby restraining the interlocking member to the fully closed counterpart.

Embodiment of the Invention

Preferred embodiment of this invention is described based on drawing. Moreover, although the embodiment shown here locks the door for a sliding type | mold vehicle, the locking means which concerns on this invention can be effectively applied also to the locking of the door of another type, for example, an opening door or a folding door. .

In Fig. 1, a locking unit (locking means) 30 is provided at a position immediately above the left and right sliding doors 10 (in the example of the figure, near the door end). By this locking unit 30, both sliding doors 10 are locked in the fully closed position.

3 to 5, the locking unit 30 is provided with a mounting plate 32 in the vertical direction, and the mounting plate 32 is fixed to the structure side with a bolt or the like (not shown). .

On a predetermined portion (lower left side in FIG. 3) of the attachment plate 32, a support shaft 34 protruding forward from the front side surface (right side in FIG. 5) is fixed, and a rotary motion member ( 36) is supported to enable rotational movement around the support shaft 34. Specifically, a circular through hole is provided in the middle portion of the rotary motion member 36, and the fixing ring 35 is provided at the tip of the support shaft 34 while the through hole and the support shaft 34 are fitted. It is installed.

At the lower end of the rotary motion member 36, a pair of left and right fork parts 36a and 36b are formed in a bifurcated state, and an engaging groove 36c is formed between these fork parts 36a and 36b. The engaging groove 36c has a substantially inverted U shape that opens downward.

On the other hand, the bracket 17 (FIG. 5) which protrudes upwards is fixed to the upper end of the door edge vicinity part of one side sliding door (the sliding door on the left side in FIG. 1) 10, and is moved forward from this bracket 17 (FIG. In Fig. 5, the engagement pin 18 protrudes from the right side).

As shown in FIG. 3, this engagement pin 18 has a diameter which can penetrate into the engagement groove 36c substantially without a gap between the distal ends of the fork portions 36a and 36b. When the sliding door 10 is in the fully closed position, it is located in the solid line position of FIG. 3, and it moves to the left direction of FIG. 3 as the sliding door 10 moves to the opening direction from this fully closed position (FIG. 2 dashed-dotted line). . And when the sliding door 10 is in the vicinity of the fully closed position (when the engagement pin 18 is in the area between the solid line position and the two-dotted line position in Fig. 3), the engagement pin 18 ) Is actually able to invade (ie engage) into the engagement groove 36c.

Further, in this engaging state, the sliding movement member 36 rotates around the support axis 34 as the sliding door 10 opens and closes (ie, the engagement pin 18 moves horizontally). The shapes of the alignment groove 36c and the fork portions 36a and 36b are set. Therefore, the rotary motion member 36 is located at the rotational angle angle position (upright position) shown by the solid line of FIG. 3 in the state in which the sliding door 10 was fully closed, and as the sliding door 10 opens from this position, FIG. It rotates in the clockwise rotation direction of FIG. 3 to the rotational movement angle position (an inclination position which the engagement pin 18 disengages from the engagement groove 36c) shown by the dashed-dotted line of 3.

In the attachment plate 32, a support shaft 38 different from the support shaft 34 is fixed to a portion spaced apart from the support shaft 34 (upper right in FIG. 3). This support shaft 38 also protrudes forward from the front of the attachment plate 32, and a locking arm (interlocking member) 40 is attached to the protruding portion thereof.

In detail, the cylinder part 40a which has a circular through-hole is formed in one end (base end part) of the locking arm 40, The said cylinder part 40a is the said axle in the state fitted in the outer side of the said support shaft 38. The fixed ring 42 is attached to the support 38, and the structure is supported by the support 38 so that the proximal end (cylindrical portion 40a) of the locking arm 40 can rotate around the support 38. have.

A torsion coil spring 44 is provided around the cylinder portion 40a. One end of the torsion coil spring 44 is fixed by a pin 40b protruding from the back of the locking arm 40, and the other end is fixed by a pin 32b protruding from the front of the attachment plate 32. The force is applied in the direction of the counterclockwise rotation (counterclockwise rotation in FIG. 3) by the elastic repulsive force of the torsion coil spring 44 when viewed from the front.

At the other end (front end) of the locking arm 40, an engagement roller 48 is rotatably attached to the circumferential axis. In detail, as shown in FIG. 4, the shaft part 46 protrudes from the back (rear side) of the locking arm 40 to the rear (upward in FIG. 4), and it is for the said engagement to this shaft part 46. The roller 48 is rotatably inserted and attached.

On the other hand, in the upper half of the rotary motion member 36, a pair of left and right fork portions 36d and 36e are formed in a bifurcated state, and the engagement roller 48 is disposed between the two fork portions 36d and 36e. Is invasive.

The inner surface of one fork portion 36d is the guide surface 36f of the engagement roller 48. The other end of the fork portion 36e is bent in the shape of a hook, and the front end surface of the hook portion is a contact surface 36g which can be brought into contact with the engagement roller 48.

Specifically, the engagement roller 48 is the inner side (under the fork portion 36d) of the guide surface 36f in a state where the rotary motion member 36 is in the inclined position shown by the dashed-dotted line in FIG. 3. (The dashed-dotted line 2 in the drawing), and the rotary motion member 36 rotates in this direction in the direction of the counterclockwise rotation of the drawing (the direction in which the sliding door 10 moves toward the fully closed position). The engagement roller 48 is rotated on the guide surface 36f in the direction toward the tip side of the fork portion 36d (that is, according to the rotational movement of the locking arm 40). Rises), and in the state where the sliding door 10 finally reaches the fully closed position (the state in which the rotary motion member 36 has reached the upright position shown by the solid line in FIG. 3), the engaging roller 48 ) Is guided to a position where the abutting surface 36g of the tip of the fork portion 36e abuts so as to be shown in solid line in FIG. 3. There the shape of the lock, turning member 36 is turned.

In the example of the figure, the contact surface 36g is an arc surface having a radius of curvature slightly larger than the radius of the engagement roller 48. And extension line of the rotational movement tangential direction (horizontal direction in the example of drawing) of the rotary motion member 36 in the site | part (contact point) P which the engagement roller 48 abuts on this contact surface 36g. Arrangement | positioning of each member is set so that the said support shaft 38 may be located on (L) (the dashed-dotted line of FIG. 3), and the position of the locking arm 40 in this state (position shown by a solid line in FIG. 3). ) Corresponds to the "completely closed position" in the present invention. That is, in this fully closed corresponding position, the locking arm 40 is interposed between the abutting surface 36g of the rotary motion member 36 and the support shaft 38 so that the rotary motion member 36 is in the sliding opening direction (Fig. 3). To prevent rotation in the clockwise direction of rotation).

In addition, the locking arm 40 has a force applied in the counterclockwise rotation direction (the direction in which the engagement roller 48 descends) of FIG. 3 due to its own weight and the elastic repulsive force of the torsion coil spring 44. When the rotary motion member 36 reaches the inclined position shown by the dashed-dotted line in FIG. 3, the engagement roller 48 is fitted between the two fork parts 36d and 36f of the rotary motion member 36. The engagement roller 48 can no longer be lowered (the locking arm 40 cannot be rotated in the counterclockwise rotation direction of FIG. 3).

In other words, this inclined position is the movement limiting position of the rotary motion member 36. In this inclined position, the engaging groove 36c of the rotary motion member 36 is opened obliquely downward, and the engaging pin 18 on the sliding door 10 side can be accommodated in the engaging groove 36c. The shape of the rotary motion member 36 is set to be able to.

Moreover, this locking unit 30 is provided with the locking switching mechanism 50, and this locking switching mechanism 50 has the locking state which keeps the locking arm 40 in the said fully closed corresponding position ( 40) can be switched to the unlocked state of opening.

The locking switching mechanism 50 is provided with the housing 52 shown in FIG. 4, and is provided in the lower surface of the support plate part 32a extended from the upper end of the said attachment plate 32 to the front (right side in FIG. 5). 52 is fixed. Thereby, the whole locking switching mechanism 50 is supported by being tied to the attachment plate 32 side, and is arrange | positioned in front of the attachment plate 32. As shown in FIG.

The solenoid 54 which is an electronic drive device and the guide member 58 which slides the locking switching pin (locking switching member) 56 are fixed to the housing 52, and the driving force of the solenoid 54 is applied. The drive transmission mechanism 60 which transfers to the locking switching pin 56 is integrated.

The solenoid 54 has an output shaft 54a which moves relative to the main body in the direction in which it emerges, and the excitation current is input (power is supplied) from the controller 70 to be described later. It is configured to protrude.

A sleeve 55 is attached around the output shaft 54a. The sleeve 55 is not movable relative to the output shaft 54a in the axial direction, and the output shaft 54a is capable of relative rotational movement in the predetermined angular range around the central axis with respect to the output shaft 54a. The pin 55a protrudes from the outer peripheral surface of this sleeve 55. As shown in FIG.

On the other hand, in the vicinity of the sleeve 55, a support shaft 51 protruding upward from the bottom of the housing 50 (toward the front in FIG. 4) is provided, and a torsion coil around the support shaft 51 is provided. A spring (spring member) 53 is attached. One end of the torsion coil spring 53 is fixed by the pin 55a, and the other end is fixed by the pin 52a provided on the housing 52 side, and the elasticity of the torsion coil spring 53 is fixed. The force is applied to the side (unlocking position side) in which the sleeve 55 and the output shaft 54a of the solenoid 54 and the locking switching pin 56 are immersed to the solenoid main body side by the repulsive force.

The locking switching pin 56 is supported by the guide member 58 so as to be movable in the front-back direction in the direction extending in the front-back direction (up-down direction in FIG. 4), and by the front-back movement, FIGS. The locking position shown by the solid line at 5 and the unlocked position retreating from the locking position are shown as shown by the dashed-dotted line in FIG.

The locking position is a position protruding to a position just below the locking arm 40 in the corresponding fully closed position, and the locking switching pin 56 is present at the locking position so that the locking arm 40 is completely closed. Rotational movement downward from the corresponding position is inhibited. That is, the locking arm 40 is restrained at the corresponding fully closed position. On the other hand, the unlocking position is a position where the locking switching pin 56 and the locking arm 40 are retracted from the locking position until the interference does not occur, and the locking switching pin 56 is located at the unlocking position. In this state, the downward rotation of the locking arm 40 is allowed.

The drive transmission mechanism 60 converts the movement of the sleeve 55 installed in the solenoid 54 into the movement in the front-rear direction of the locking switching pin 56, and rotates as shown in FIG. The movement link 62 is provided.

The rotational link 62 is supported by the support shaft 51 so as to be rotatable around the support shaft 51, and a predetermined portion thereof is coupled to the pin 55a of the sleeve 55, The long hole 62a which penetrates the rotational motion link 62 is formed in the position which deviates from this pin 55a.

On the other hand, a link coupling plate 64 is fixed to the rear end of the locking switching pin 56, and the link coupling plate 64 also has a long hole 64a passing through the link coupling plate 64. A common pin 66 is inserted through the long hole 64a and the long hole 62a in the vertical direction.

In this locking switching mechanism 60, when the output shaft 54a and the sleeve 55 of the solenoid 54 are in the immersion position as shown by the solid line of FIG. 4 by the elastic repulsive force of the torsion coil spring 53. FIG. (I.e., when solenoid 54 is off), while locking switching pin 56 is switched to the locking position shown by the solid line in the same drawing, in this state, solenoid 54 is switched on and its output shaft 54a. ) And the sleeve 55 protrude to the protruding position shown by the dashed-dotted line in the same drawing, the rotary motion link 62 rotates so that the locking switching pin 56 is the unlocked position of the dashed-dotted line in the same drawing. To be pulled in.

Further, in the vicinity of the link coupling plate 64, a locking detection switch 68 is provided for detecting whether the locking switching pin 56 is switched to the locking position. This locking detection switch 68 is a limit switch in the example of the figure, and has a contactor 68a made of a roller. When the locking switching pin 56 is advanced to the locking position, the link coupling plate 64 abuts on the contact 68a, and is configured to switch the locking detection switch 68 from off to on. .

6 shows a control device 70 for controlling the operation of the opening and closing drive device 20 and the locking unit 30. This control apparatus 70 is provided with the opening / closing drive control means 72 and the locking control means 74 shown in figure.

The opening / closing drive control means 72 is configured based on the detection signal of the door closing switch 15 or the output signal of the encoder built into the motor 22 (that is, the sliding opening / closing drive detection signal). Drive control, that is, open / close drive control of the sliding door 10 is performed.

The locking control means 74 incorporates a timer and receives an output signal of the vehicle speed switch 76 or the locking detection switch 68 in the locking unit 30, and at a predetermined timing, the locking unit 30 The control signal (excitation current) is output to the solenoid 54 of (), and the on-off switching of the solenoid 54, that is, the locking switching is performed. The vehicle speed switch 76 detects whether or not the traveling speed of the railway vehicle on which the sliding door 10 is installed is a predetermined value or more, and when the traveling speed becomes a predetermined value (for example, 5 km / h) or more, Switch from off to on.

Next, the specific control operation performed by the control device 70 and the operation of the locking unit 30 according to the control will be described with reference to the time charts of FIGS. 7 and 8. In addition, the time chart of FIG. 7 shows the operation | movement when opening the sliding door 10 from a fully closed position, and the flowchart of FIG. 8 shows the operation | movement when returning the sliding door 10 to a fully closed position.

As shown in the left end of FIG. 7, in the state in which the sliding door 10 is in the fully closed position, the door drive signal is not output to the motor 22 of the opening / closing drive device 20, and the door closing switch 15 Is on. Further, power is not supplied to the solenoid 54. Therefore, the locking switching pin 56 is held in the locking position by the tension force of the torsion coil spring 53, and the locking detection switch 68 is switched on.

 In this state, when a command signal for opening the sliding door 10 is input (time T1 in FIG. 7), the solenoid 54 is turned on (power supply is performed), and the locking switching pin 56 is turned on. Restriction of the locking arm 40 is canceled by retreating to the unlocking position shown by the dashed-dotted line in FIG. This confirms that the locking detection switch 68 is switched off, and outputs a door drive signal for opening the sliding door 10 to the motor 22 of the opening and closing drive device 20 (time T2). ).

The drive of the sliding door 10 in the opening direction is started by the output of this door drive signal. Specifically, the circular pulley 23 shown in FIG. 1 rotates in the counterclockwise direction of the same drawing and slides in the direction in which the left and right sliding doors 10 are spaced apart from each other. At this time, since the rotary motion member 36 is engaged with the engagement pin 18 provided on the sliding door 10 side, the rotary motion member 36 is interlocked with the opening operation of the sliding door 10. It moves from the upright position shown by a solid line to the inclined position shown by the dashed-dotted line shown in the same figure, and after that, the said engagement pin 18 disengages from the rotary motion member 36, and only the opening operation of the sliding door 10 is carried out. Continues. In addition, with the rotational movement of the rotary motion member 36, the locking arm 40 is moved from the horizontal position (completely closed position) shown below by the solid line in FIG. Descend until

The door drive signal is a pulse signal, and the duty ratio of the signal is gradually increased from 0% to the maximum value (70% in the example in the drawing) so that the sliding door 10 is gradually accelerated by the door drive signal. Then, the solenoid 54 is turned off once at the time when the duty ratio reaches 70%, that is, when the acceleration of the sliding direction 10 is completed (time T3). That is, the interruption of power supply to the solenoid 54 is started.

By stopping the power supply, the driving force of the solenoid 54 is dissipated, and the locking switching pin 56 tries to protrude to the locking position by the force of the torsion coil spring 53, before which the movement limit position is reached. Since the locking arm 40 is moved, the locking switching pin 56 does not reach the locking position but is pressed against the back of the locking arm 40 by the force. That is, the locking changeover pin 56 abuts against the locking arm 40 in its axial direction (operation direction).

Thereafter, the duty ratio of the drive signal is gradually decreased (open driving is decelerated), and the slow ratio operation for the open cushion is performed while maintaining the duty ratio at 20%. At the time when the sliding door 10 reaches the fully open position (time T4), the duty ratio is switched to 4%, and the complete open position is maintained.

In this fully open state, when a command signal for closing the sliding door 10 is input (time T5 in FIG. 8), this time, the door driving signal for closing the sliding door 10 is sent to the motor of the opening / closing drive device 20. Output to (22). Also in this case, the duty ratio of the door driving signal is gradually increased, and the maximum value is maintained when the maximum value (70% in the example in the figure) is reached. Thereafter, the duty ratio is gradually reduced to decrease the closing drive, and when the sliding door 10 reaches a predetermined position immediately before the fully closed position, a slow cushion for the closed cushion for maintaining the duty ratio at 20% is performed. At the same time as starting, power supply to the solenoid 54 is resumed (time T6). As a result, the locking switching pin 56 is returned from the locking position until then to the unlocking position shown by the dashed-dotted line in FIG.

When the left sliding door 10 approaches the fully closed position, the engaging pin 18 is in the engaging groove 36c of the rotary motion member 36 in the inclined position as shown by the dashed-dotted line in FIG. Enter And from the time when the engagement pin 18 intrudes in this engagement groove 36c, the rotary motion member 36 responds to the movement of the engagement pin 18 in the closing direction (rightward movement in FIG. 3). The rotational motion is started in the direction (the counterclockwise rotation direction in the drawing) toward the upright position of the solid line in the movable drawing. Accordingly, the locking arm 40 engaged with the rotary motion member 36 starts the rotary motion in the direction of rotation of the clockwise direction of the figure in response to the elastic repulsive force (forced force) of the torsion coil spring 44. At this time, since the locking switching pin 56 is retracted to the unlocked position, it does not affect the movement of the locking arm 40.

As described above, the closing drive proceeds, the door closing switch 15 is turned on, and furthermore, the time when the position detection signal of the encoder built in the motor 22 is stopped and the sliding door 10 is stopped are detected. It is judged that both the sliding doors 10 have reached the position (temporary closing position) in contact with each other, and raises the closing driving force by raising the duty ratio of the door driving signal from 20% to 30% until then (time T7). . As a result, both sliding doors 10 are pressed against each other strongly with compression deformation of the elastic material 11 provided at the end of the door, and reach the fully closed position.

At this time, in the locking unit 30, the rotary motion member 36 reaches the complete upright position shown by the solid line in FIG. 3, and the contact surface 36g of the fork part 36e and the locking arm 40 The locking arm 40 is automatically positioned at the fully closed corresponding position where the engagement roller 48 abuts at the point P in the figure.

In this fully closed position, the support shaft 38 is positioned on the extension line L in the rotational tangential direction of the rotary motion member 36 at the contact point P, and the locking arm 40 is located at the so-called dead point. It is located. Therefore, even if the elastic repulsive force of the elastic member 11 of the sliding door 10 acts as a reaction force (open reaction force) T on the locking arm 40 from the contact point P, the reaction force T is It does not act as a force that causes the locking arm 40 to rotate, but only acts on the locking arm 40 as a compression load. In other words, the reaction force T is supported by the support shaft 38 side via the locking arm 40.

After the sliding door 10 is brought to the fully closed position in this way, the duty ratio of the door drive signal is lowered to 4% at this time, thereby reducing the closing drive force to the driving force for weaker maintenance than the normal driving force, Let the timer start.

As a result of the lowering of the closing driving force in this way, the reaction force T transmitted from the rotary motion member 36 shown in FIG. 3 to the locking arm 40 is lowered, and the same locking arm 40 is brought into a fully closed position. At this point, since the locking shift pin 56 is still in the unlocked position, for example, when foreign matter such as clothing is inserted between the sliding doors 10 at the completely closed position, the opening direction is manually opened. When the force of the sliding door 10 is applied, the sliding door 10 is rotated in the opposite direction to the rotational movement member 36 and the locking arm 40 by the aid of the force of the torsional coil spring 44. It is possible to open and thereby to escape the foreign material. In this way, when the door closing switch 15 is turned off, the open / close drive control means 20 determines that the emergency opening operation has been performed, and drives the sliding door 10 in the opening direction for a predetermined time.

On the other hand, when the closing drive force is lowered to F2 and the door opening operation is not performed, and the door closing switch 15 is timer-on as it is in the on state (in the example of the drawing, when 0.5 second has elapsed when the driving force decreases), the door The duty ratio of the drive signal is raised to 30% again, and both sliding doors 10 are pushed again to the fully closed position, and power supply to the solenoid 54 is stopped (time T8). As the electromagnetic driving force disappears in this manner, the locking switching pin 56 protrudes from the unlocking position until then by the elastic repulsive force of the torsion coil spring 53 to the locking position shown by solid lines in FIGS. 4 and 5. Due to the presence of the locking switching pin 56, the locking arm 40 cannot escape from the corresponding fully closed position, and therefore, a sliding door connected to the locking arm 40 through the rotational movement member 36 10) is locked in the fully closed position. After such a locking operation is detected by the locking detecting switch 68, the closing drive is terminated by setting the duty ratio of the door driving signal to 0% (that is, disconnecting the energization of the motor 22).

According to the control shown above, during the specific period (from time T3 to time T6 in Figs. 7 and 8) from the time when the sliding door 10 starts to open and returns to the fully closed position. Since the power supply to the solenoid 54 is stopped during the period, the power consumption can be effectively reduced as compared with the control in which power is always supplied during the door opening period as in the prior art. In addition, during this period, even if the locking switching pin 56 is moved from the unlocking position due to the power supply interruption, there is no problem in opening and closing the sliding door 10.

Particularly in the case of this embodiment, in the step in which the sliding door 10 is spaced from the fully closed position, the locking arm 40 which is the interlocking member moves to the movement limit position shown by the dashed-dotted line in FIG. 4, and in this state the solenoid Even if the power supply to (54) is interrupted, the locking changeover pin 56 does not reach the locking position but is pressed against the back of the locking arm 40 just before it, so that the sliding door 10 is in the fully closed position. Even if it returns, the locking arm 40 can return to the fully closed position while slidingly engaging with the locking switching pin 56, and in addition, the locking switching pin at the time when the locking arm 40 is moved to the fully closed position. 56 protrudes to the locked position, and the sliding door 10 is automatically locked.

In addition, this invention is not limited to the above embodiment, It is also possible to take the following forms as an example.

The time point at which the power supply to the solenoid 54 is stopped is not limited to the time T3 (acceleration end time point) in FIG. It is good also as a time point which reached | attained the predetermined value lower than 70%). That is, it is good to set it free in the range which does not affect door opening / closing drive. The same applies to the time point at which the power supply is stopped (that is, the time point at which the power supply is resumed), and for example, may be set at the time when the deceleration of the closing direction drive is started.

In the present invention, regardless of the specific structure of the locking means, for example, the interlocking member may be omitted, and the locking switching member may be directly engaged with the engaging portion provided in the vehicle door to lock it. It does not prevent the application of the configuration of the locking means known from the prior art. The locking switching pin 56 may be directly connected to the plunger of the solenoid 54.

As described above, according to the present invention, after the vehicle door is opened, the electric drive device is supplied with electric power to switch the locking switching member to the unlocking position, and then the vehicle door is completely opened again after the vehicle door starts to open. Since the power supply to the electronic drive device is temporarily suspended within a certain period of time up to the return, the vehicle door can be opened and locked well while the power consumption is suppressed.

BRIEF DESCRIPTION OF THE DRAWINGS The front view which shows the opening / closing drive apparatus of the door for vehicles which concerns on embodiment of this invention,

2 is a cross-sectional view taken along the line A-A of FIG.

3 is a cross-sectional view taken along the line B-B of FIG.

4 is a partial cross-sectional plan view of the locking unit for locking the door in the fully closed position;

5 is a side view of the locking unit,

6 is a block diagram showing a functional configuration of a control device for controlling opening and closing of the door and locking;

7 is a time chart showing a control operation of the control device when the door is opened;

Fig. 8 is a time chart showing a control operation of the control device when the door is closed.

(Explanation of the sign)

10: sliding door (vehicle door) 20: opening and closing drive device

30: locking unit (locking means) 40: locking arm (interlocking member)

50: locking switching mechanism 53: torsion coil spring (spring member)

54: solenoid (electronic drive device) 56: locking switching pin (locking switching member)

70: control device 74: locking control means

Claims (9)

A locking switching member for locking the vehicle door to a fully closed position and a locking switching member which retracts from the locking position to a unlocking position for opening the vehicle door, and a spring for applying a force to the locking position side of the locking switching member; Locking control of the vehicle door using a locking means including a member and an electronic drive that receives the electric power to switch the locking switching member to the unlocked position by resisting the force of the spring member. A method of performing the above-mentioned method, wherein the electronic drive device is supplied with electric power before the vehicle door is opened to switch the locking switching member to the unlocked position, and then the vehicle door starts to open again and returns to the fully closed position again. To suspend power supply to the electronic drive within a specified period of time up to The locking control method for a vehicle door according to. 2. The locking control method according to claim 1, wherein the stopping of the power supply is started from the time when the vehicle door starts to open until the door reaches a fully open position. 3. The vehicle according to claim 1 or 2, wherein the power supply is resumed when the vehicle door is driven in the closing direction in a state in which the power supply is stopped, and reaches a predetermined position immediately before the fully closed position. And stopping the power supply again after the door reaches the fully closed position. A locking device for a vehicle door comprising a locking means for locking a vehicle door in a fully closed position and a locking control means for controlling the operation of the locking means, wherein the locking means locks the vehicle door in a completely closed position. A locking switching member which is switched to a locking position and an unlocking position which retracts from the locking position to open the vehicle door, a spring member which applies the locking switching member to the locking position side, and receives electric power by being supplied with electric power. And an electronic drive device for switching the locking switching member to the unlocking position in response to the force of the spring member, wherein the locking control means detects the position of the door for the vehicle and simultaneously performs opening and closing control. Connected to a drive control means and connected to the electronic drive device before the vehicle door is opened. After switching the locking switching member to the unlocking position by supplying a force, suspending the power supply within a certain period of time from when the vehicle door starts to open to returning to the fully closed position again. Locking device for a vehicle door characterized in that. 5. The vehicle door according to claim 4, wherein the locking control means initiates stopping the power supply from the time when the door starts to open until the door reaches a fully open position. Locking device. 6. The locking device of a vehicle door according to claim 5, wherein said locking control means starts the stopping of the power supply at the time when the acceleration in the opening direction of the vehicle door ends. 7. The locking control means according to any one of claims 4 to 6, wherein the locking control means is operated when the door for the vehicle is driven in the closing direction in a state in which the power supply is stopped, and reaches a predetermined position immediately before the complete closing position. And restarting the power supply to the electronic drive device, and stopping the power supply again after the vehicle door reaches the fully closed position. 8. The locking device of a vehicle door according to claim 7, wherein the predetermined position is a position at which a slow motion for cushion is started to reach the vehicle door at a low closing position. 7. The locking means according to any one of claims 4 to 6, wherein the locking means moves from the fully closed corresponding position corresponding to the completely closed position to a predetermined movement limit position in association with the opening of the vehicle door from the fully closed position. And an interlocking member, wherein the locking switching member restrains the interlocking member to the fully closed corresponding position by stopping power supply to the electronic drive device of the locking means while the interlocking member is in the fully closed corresponding position. While the switch is switched to the locking position, the power supply to the electronic drive device of the locking means is stopped while the interlocking member is in the movement limiting position so that the locking switching member is parallel to the operating direction with respect to the interlocking member. The movement restraint position is set so as to abut on the side, and the interlocking member A locking device for a vehicle door, characterized in that it is configured to be movable in the completely closed corresponding position while slidingly engaged with a king switching member.