JPH0714585Y2 - Power supply control device for sliding door with automatic closing device - Google Patents

Description

[Detailed Description of the Invention] A. Field of Industrial Application The present invention relates to a power supply control device for a sliding door with an automatic closing device, and more specifically, an automatic closing device on the door side after a predetermined time has passed after the door closing operation was performed. The power supply to the power supply is stopped.

B. Conventional technology When closing an automobile door, the closing force is large and heavy due to the reaction force of the weather strip that seals the door and the vehicle body opening and the reaction force of the air trapped in the passenger compartment. For this reason, if the closing force is small, the door lock device will be in a half-locked state, so it has to be closed with a large closing force. In order to reduce the door closing force, when the door lock device is in the half-locked state, the door is automatically operated to the full-locked state and the door is completely closed.
The device disclosed in Japanese Patent Application Laid-Open No. 60-137067 and the device proposed in the specification of Japanese Patent Application No. 62-262456 previously filed by the present applicant are known.

2 to 4 are schematic views of such a device, FIG. 2 is a perspective view of the latch device, and FIG. 3 is an engagement relationship between the striker and the latch plate when closing the slide door. FIG. 4 is a perspective view showing the drive system of the latch plate.

In FIG. 2, a latch plate (latch member) 12 is rotatably supported by a housing 11 provided on a slide door (not shown). When the latch plate 12 engages with the striker 13 fixed to the vehicle body (not shown), the sliding door is closed and locked with respect to the vehicle body.

FIGS. 3A to 3C are views showing changes in engagement between the striker 13 and the latch plate 12 when the slide door is closed in the direction of arrow F. First, as shown in FIG. The striker 13 hits one of the protrusions 121 of the plate, and the protrusion 121 is pushed by the striker 13, and the latch plate 12 rotates clockwise, and the half lock state shown in FIG. If you close the door further in the F direction until it is fully locked,
As shown in (c), the projection 122 of the latch plate 12 rides over the pole 14, the pole 14 surely restrains the door opening movement of the latch plate 12, and the door is completely closed. When the pole 14 is rotated counterclockwise through a well-known door remote control device by operating a door handle (not shown) from the fully locked state of (c), the pole 14 once pivots the latch plate 12 clockwise to project. The engagement with the part 122 is released. As a result, when the sliding door is moved in the G direction in the figure, the engagement between the latch plate 12 and the striker 13 is released, and the door can be opened.

Here, when the slide door is closed in the state shown in FIG. 3 (b), it becomes a half-door state. Therefore, the automatic closing device detects the half-locked state and forcibly rotates the latch plate 12 clockwise to bring it into the full-locked state. Therefore, as shown in FIG. 2, the drive lever 15 is rotatably supported on the upper surface of the housing 11, and the cable 16 connected to the fan-shaped drive gear 17 driven by the motor 104 described later has the drive lever 15. It is linked to 15. Since the latch plate 12 projects on the rotation locus of the drive lever 15, the gear 17
When the drive lever 15 is rotated counterclockwise in the drawing, the latch plate 12 is rotated clockwise, that is, in a direction in which it is in a full lock state. On the other hand, a pole drive lever 18 to which a cable 19 is connected is rotatably supported on the housing 11. The cable 18 is connected to the door remote control device 20, and when the door handle 21 is operated, the cable 19 is pushed through the door remote control device 20 and the pole 14 rotates counterclockwise, so that the latch plate 12 is restrained by the pole 14. solve.
Incidentally, 105 is a full lock switch which will be described later, and 107 is a half lock switch.

The drive gear 17 rotates clockwise and counterclockwise in the configuration shown in FIG. That is, as shown in FIG. 4, the motor 104 is fixed to the plate 55 fixed to the slide door. A worm 52 is provided on the motor output shaft and meshes with a worm wheel 53 rotatably supported by a plate 55. A gear 54 is provided integrally with the worm wheel 53, and the gear 54 meshes with a fan-shaped drive gear 17 which is swingably supported by a plate 55. The drive gear 17 is connected to the cable 16 described above, and a neutral switch 106 that is turned off when the drive gear 17 is in the neutral position is fixed to the plate 55.

Worm 52, worm wheel 5 by forward rotation of motor 104
3. The drive gear 17 rotates clockwise through the gear 54.
By this rotation, the drive lever 15 connected to the gear 17 via the cable 16 rotates counterclockwise, and the latch plate 12 rotates to the full lock state.

The rotation of the motor 104 is controlled by a drive control circuit (not shown), and the schematic operation of the drive control circuit is as follows.

First, when the latch plate 12 is in the half lock state by the door closing operation, the half lock switch 107 shown in FIG.
Turns on. Therefore, the ON signal of the half lock switch 107 drives the motor 104 in the normal direction. Then, the latch plate 12 is rotated toward the full lock state by the rotation of the drive lever 15 in the counterclockwise direction. When in the full lock state, the full lock switch 105 shown in FIG.
Turns on. Therefore, the motor 104 is reversely rotated to return the drive lever 15 to the initial position. When the drive lever 15 returns to the initial position, the neutral switch 106 shown in FIG. 4 is turned off, and the driving of the motor 104 is stopped at this point.

By the way, in a slide door equipped with such an automatic closing device, it is necessary to supply a power supply voltage required for operating each circuit section in the automatic closing device from a battery power source on the vehicle body side. Therefore, the door side and the vehicle body side are provided with contacts that conduct in the half-locked state and the full-locked state of the door closing operation, so that the power supply voltage necessary for the automatic closing device on the door side is supplied by the conduction of these contacts. It is configured.

C. Problem to be solved by the device However, although the supply of power supply voltage is not necessary after the full lock state, conventionally, if the door is closed, the automatic closing device installed on the door side is always supplied with power. . Therefore, there is a problem that the above-mentioned contacts for power supply provided on the door side and the vehicle body side are damaged by electrolytic corrosion, and the reliability of the automatic closing device itself is deteriorated.

A technical problem of the present invention is to obtain a power supply control device for a slide door with an automatic closing device that stops power supply after a full lock state, and an object thereof is to prevent damage to a power supply contact. .

D. Means for Solving the Problems The present invention, when a half-lock state is detected during a door closing operation, drives a latch member pivotally attached to the door side to forcibly engage a striker fixed to the vehicle body side. As a result, an automatic closing device for locking the door in a fully locked state is provided, and power is supplied from the battery on the vehicle body side to the automatic closing device via the vehicle body side contact and the door side contact during the door closing operation. It is applied to the power supply control device for sliding doors.

And the above-mentioned technical problem is that the switching means connected between the vehicle body side contact and the battery and the switching means are closed before at least the half-lock state is detected, and then at least the full-lock state is detected. Is solved by including a control means for closing the switching means for a fixed time.

E. Function At least before the detection of the half-lock state, the switching means is closed and the automatic closing device is supplied with power.

As a result, the latch member is driven when the half-locked state is detected. When the full lock state is detected, the driving of the latch member is stopped, the switching means is opened, and the power supply to the automatic closing device is stopped. Therefore, power is supplied to the automatic closing device for a predetermined time, and it is possible to prevent damage to the contacts for power supply due to electrolytic corrosion.

F. Embodiment FIG. 1 is a circuit diagram showing the configuration of a power supply control device according to the present invention. On the vehicle body side and the door side, there are provided a pair of contacts 41a that conduct before the detection of the half lock state during the door closing operation. 41
b, and 42a and 42b, respectively. Contact 42a
Is connected to the negative terminal of the battery BT, and the contact 41a is connected to the positive terminal of the battery BT via the relay 44 (switching means). The contacts 41b, 42b on the door side
Is connected to an automatic closure device 50.

Further, a door close switch 43 that is turned off after the door close operation and before the half-locked state is provided, and contacts 41a and 41b, 42a are provided.
And 42b are provided between the slide door and the vehicle body so as to be turned off when they are connected to each other. Depending on the case, a switch that detects the closing movement of the slide door and turns it off may be used.

The control circuit 45 is composed of an integrated circuit element having a timer function. When the door close switch 43 is opened and the door close detection signal (“H” level) is input to the SET input when the door is closed, the Q output is output. It becomes "L" level. Also, the Q output is "L
After a predetermined time (for example, 1 minute) determined by the resistor R and the capacitor C has elapsed after the level becomes "H", the Q output is returned to the "H" level. In this case, the resistor R and the capacitor C are latch plates. The time constant is selected so that it takes a little longer than the time required to get to the full lock state.

The door closing switch 43, the control circuit 45, and the timer 46 including the resistor R and the capacitor C described above constitute the control means.

In the above configuration, when the sliding door is closed, the contact 41
a and 41b and 42a and 42b are brought into conduction, respectively. Then, when the sliding door is further closed, the door close switch 43
Is turned off, and the door closing detection signal is sent from the switch 43 to the control circuit.
Input to the 45 SET inputs. Then, the control circuit 45 changes the Q output to the "L" level because the door close detection signal is input. As a result, the coil 44c of the relay 44 is excited, the contacts a and b thereof become conductive, and positive power is supplied to the automatic closing device 50 on the door side via the contacts a and b and the contacts 41a and 41b. In the automatic closing device 50 to which the power is supplied in this way, the sliding door is brought into the fully locked state by the above-mentioned operation.

On the other hand, the control circuit 45 restores the Q output to the "H" level when the predetermined time determined by the resistor R and the capacitor C elapses after the Q output becomes the "L" level. As a result, the excitation of the relay 44 is released, and the contacts a and b become non-conductive. As a result, the power supply to the slide door side is stopped.

Therefore, in this embodiment, electric power is supplied to the sliding door side only for a predetermined time determined by the resistor R and the capacitor C, and it is possible to prevent the contacts 41a, 41b, 42a, 42b from being damaged by electrolytic corrosion. Further, during the automatic closing operation of the automatic closing device 50, for example, a foreign matter may be caught in the engaging portion of the latch plate 12 and the striker 13, and even if the full lock state is not achieved, the power is not supplied after the predetermined time has elapsed. Since the supply of power is stopped, it is possible to prevent the situation where the motor 104 is damaged by continuous energization.

In the above embodiment, the relay 44 may be composed of a semiconductor switching element such as a thyristor. Although the relay 44 is turned off when the predetermined time is counted by the timer 46, the relay 4 is received by receiving the signal in the full lock state from the full lock switch 105 of the automatic closing device 50.
Alternatively, the relay 44 may be turned off, or the relay 44 may be turned off by detecting that the motor 104 has been driven twice by monitoring the waveform of the current flowing through the automatic closing device 50.

G. Effect of the Invention As described above, according to the present invention, the power is supplied to the automatic closing device on the door side for a predetermined time after the door closing operation, so that the contact for power supply is damaged by electrolytic corrosion. Can be prevented, and the reliability of the automatic closing device itself is improved. Moreover, since the battery is configured to supply electric power to the vehicle body side contact after the vehicle body side contact and the door side contact are connected, a short circuit occurs between the vehicle body side contacts due to an unexpected situation before both contacts are connected. Can be prevented.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing an embodiment of a power supply control device according to the present invention, FIG. 2 is a perspective view showing the configuration of a latch device in an automatic closing device, and FIG. 3 is an engagement state between a latch plate and a striker. FIG. 4 is a perspective view showing the configuration of the drive system of the drive lever. 12: latch plate, 13: striker 14: pole, 15: drive lever 16, 19: cable, 17: fan drive gear 41a, 41b, 42a, 42b: contact point 43: door close switch, 44: relay 45: control circuit, 46: Timer R: Resistor, C: Capacitor BT: Battery

Claims (1)

[Scope of utility model registration request] 1. When a half lock state is detected during a door closing operation, a latch member pivotally mounted on the door side is driven to forcibly engage with a striker fixed to the vehicle body side, whereby the door is fully locked. In a power supply device for a slide door, which is provided with an automatic closing device that locks in a state, and which supplies electric power from a battery on the vehicle body side to the automatic closing device via a vehicle body side contact and a door side contact at the time of door closing operation. Switching means connected between the vehicle body side contact and the battery, and the switching means before the half lock state is detected and after the vehicle body side contact and the door side contact are connected. And a control means for closing the switching means for a certain period of time until the full lock state is detected. Power supply control device for sliding door with dynamic closing device.