JPH0540222Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a regulator device for controlling the opening and closing of objects such as windows and sunroofs in automobiles, automatic doors in trains, elevators, stores, etc.

[Prior art and its problems]

In recent years, regulator devices that use motors to automatically open and close objects such as windows and sunroofs have become popular. In such a regulator device, since the windows and the like are automatically opened and closed, there is a risk that foreign objects may be caught in the windows or the like. In order to prevent such a situation, a sensor is installed as disclosed in Japanese Utility Model Application No. 47-22624, Utility Model Application No. 50-81519, etc., and when a foreign object is detected by the sensor, the closing operation of the window etc. is stopped. Some ideas have been devised to shift the opening operation.

[Purpose of invention]

The purpose of this invention is that even if a foreign object is caught, the opening/closing object will stop at that position, so the foreign object will not be pinched even more strongly, and the opening/closing object will remain closed even after the power switch is turned off. To provide a regulator device that can.

[Example of idea]

FIG. 1 shows a sensor A, which includes a base portion 1a, a flexible portion 1b connected to the flexible portion _1b having a hollow portion 1b1, and a switch portion 1 having a hollow portion _1c1 connected to the flexible portion 1b.
an elastic band-like body 1 composed of c and a pair of conductive band bodies 2 provided on opposing upper and lower surfaces within a hollow portion 1c1 of the switch portion _1c of the elastic band-like body 1;
It is composed of. The elastic band 1 is made of insulating silicone rubber, and the conductive band 2 is made of insulating silicone rubber.
is made of conductive silicone rubber by integral molding or by adhesion, has appropriate flexibility due to its thickness, shape, etc., and is pressed from the lower surface side of the switch part 1c to connect the pair of conductive bands 2. When an external force greater than the contact is applied, it bends and the bending part 1b becomes the hollow part 1.
b ₁ causes it to collapse and absorb external force.

FIG. 2 shows a sectional view of the sensor A installed on an automobile door. The upper edge 5a of the window 5 is attached to the weather strip part 4 fixed to the door frame 3.
A recess 4a into which is inserted is formed. The base portion 1a of the elastic band-like body 1 in the sensor A is attached to the indoor side (left side) of the side portion forming the recess 4a. Note that the elastic band 1 has a window 5.
It is designed so that it does not come into contact with the robot when it rises. In this way, the sensor A is attached over the entire length of the lower edge (window 5 side) of the weather strip section 4, as shown in FIG.

FIG. 4 shows an end portion _A1 of the sensor A, which is mounted in a case 7 that houses a printed circuit board 6 on which a circuit to be described later is wired. That is, the hollow part 1c1 of the switch part 1c of the elastic band 1 is fitted into the receiving part _7a protruding from the case 7, and is pressed against the receiving part 7a by the stop spring 8. Since a pair of terminals 9 protrudes from the printed circuit board 6 in the receiving portion 7a, the conductive band 2 of the sensor A is electrically connected to the terminals 9. Note that a power supply line and a signal line 10 are led out from the printed circuit board 6.

Therefore, when a foreign object is caught between the window 5 and the weather strip section 4 while the window 5 is rising, the sensor A changes to the elastic band state 1 due to the foreign object.
is pushed up from below. As a result, the hollow part 1
c ₁ is crushed and the pair of conductive bands 2 come into contact. Therefore, since the conductive strips 2 are short-circuited, the operation is the same as when a switch is turned on. Moreover, after the hollow part _1c1 of the switch part 1c is crushed, the flexible part 1
The hollow portion 1b ₁ of b is collapsed to absorb external force applied to the foreign object.

Next, a lifting circuit for the window 5 using the sensor A described above will be explained with reference to FIG.

S ₁ and S ₂ are switches provided on the driver's seat that open and close the window 5 on the driver's seat side; S ₃ and S ₄ are switches that are provided on the driver's seat and open and close the window 5 on the passenger seat side;
S ₅ and S ₆ are installed on the passenger seat and the window 5 on the passenger side
The switches S ₁ , S ₃ , and S ₅ are for raising the window, and the switches S ₂ , S ₄ , and S ₆ are for lowering the window. When S ₁ and S ₂ are operated manually (the window 5 moves up and down only when either switch S ₁ or S ₂ is lightly pressed), they are not attracted even if the coil L described later is energized. It will not be activated, and it will return when you release your hand, and it will also return during automatic operation (when the switch is turned off).
If you press either S ₁ or S ₂ strongly, the window 5 will move up and down until it is fully open or closed even if you release your hand)
In this case, if the coil L is energized, it will be attracted and the switches S ₁ and ₂ will be locked.

The switches _S3 to _S6 are momentary switches, and their contacts are switched only when they are pressed by hand.

When either the switch S ₁ or S ₂ is pressed and current is supplied through the diode D ₁ or D ₂ , the coil L is energized and the motor (described later) is activated.
When a lock current flows through _M1 and detects a voltage rise due to the current detection resistor _R1 , the current detection circuit cuts off the current to the coil L. When L is energized by the current detection circuit B, the above-mentioned When the switches S ₁ and S ₂ are strongly pressed, the switches S ₁ and S ₂ are held and locked in the pressed state.

M ₁ and M ₂ are motors for vertically moving the window 5 on the driver's seat side and the window 5 on the passenger's seat; when current flows in the direction of the arrow, the window 5 rises, and when current flows in the opposite direction, it moves down. let Y is a relay having one circuit of contacts y, and _D3 is a diode for preventing back electromotive force connected in parallel to the coil of relay Y.

A, A' Of the above-mentioned sensors, sensor A is installed on the driver's side door, sensor A' is installed on the passenger's side door, and 2, 2' are a pair of conductive strips in sensors A, A', respectively. It functions as a switch (2 and 2' are also called switches).

Next, the safety circuit C will be explained. Power is supplied to this circuit C via the diodes D ₁ and D ₂ . Q ₁ to Q ₃ are transistors, R ₂ and R ₃ are resistors, R ₄ and C ₁ are resistors and capacitors forming a time constant circuit, and D ₄ is a diode for preventing backflow.

IS is an ignition switch, D is a delay circuit, and the delay circuit D is an ignition switch IS.
It works when the is closed. The delay circuit D includes two backflow prevention diodes D ₅ and D ₆ and a base resistor R ₅ .
Darlington-connected transistors Q ₄ and Q ₅ , resistor R ₆ and capacitor that constitute the time constant circuit
It is composed of C ₂ and more.

Next, the operation will be explained based on the circuit configuration described above.

First, when the ignition switch IS is turned on, the capacitor _C2 is charged via the resistor _R6 , and then the transistors _Q4 and _Q5 are turned on. When transistor _Q5 is turned on, relay Y is energized and its contact y is turned on.

In this state, we will explain the case where the driver's side window 5 is opened and closed by manual operation. In this case, when either switch S ₁ or S ₂ is lightly pressed (for example, when the lift switch S ₁ is pressed) ), +B → contact y → switch S ₁ → motor M ₁
→ Switch S ₂ → Resistor R ₁ → Motor in earth circuit
A current flows in _M1 in the direction of the arrow. Therefore, the motor
M ₁ raises the driver's side window 5. here,
Current is applied to the current detection circuit B through the diode _D1 , and the coil L is energized, but since the switch _S1 is lightly pressed, the amount of displacement is small, and the magnetic flux of the coil L causes the switch _S1 to be energized. It will never be locked. Then, when I let go of Switch S ₁ ,
The switch _S1 is turned off (the state shown in the figure), power to the motor _M1 is cut off, and the window 5 stops rising.

Note that when the lowering switch _S2 is lightly pressed and turned on, the process is the same as when the window _S1 is turned on, except that the current direction to the motor _M1 flows in the opposite direction, so a description thereof will be omitted.

Next, we will explain the case where the driver's side window 5 is automatically opened and closed. In this case, if either switch S ₁ or S ₂ is strongly pressed (for example, if the lift switch S ₁ is pressed) , the coil L is energized in the same way as during the manual operation.
Here, since the switch S ₁ is strongly pressed, the switch S ₁ is locked by the magnetic flux of the coil L, and even if you release your hand from the switch S 1, the switch S ₁ remains locked.
_S1 remains on. Therefore, since the switch _S1 is in the ON state, current flows to the motor _M1 in the same circuit as in the manual operation, and the driver's side window 5 is raised. And Wind 5
When the motor M1 rises and comes into contact with the recess 4a of the weather strip section 4 and stops, the motor _M1 is locked and a lock current flows. As a result, the potential of the resistor _R1 becomes equal to or higher than a predetermined value, so the current detection circuit B detects this and cuts off the current supply to the coil L. Therefore, the switch _S1 automatically returns to its original position and turns off. By turning off switch _S1 , the motor
Power to _M1 is cut off and all operations are terminated.

Note that when the lowering switch _S2 is pressed during automatic operation, the direction of the current to the motor _M1 is simply reversed, and the operation is the same as when the switch _S1 is turned on, so a description thereof will be omitted.

Next, we will explain what happens if a foreign object gets caught while the window is raised during manual or automatic operation.

Now, when a foreign object is caught, the sensor A deforms and the pair of conductive bands 2 come into contact. That is, switch 2 in FIG. 5 is turned on. When the switch 2 is turned on, the base current flows through the diode _D1 to the transistor _Q1 , so the transistor _Q1 is immediately turned on, the capacitor _C1 is instantly charged, and the transistors _Q2 and _Q3 are turned on. Turns on. When the transistor Q ₃ is turned on, the + side of the capacitor C ₂ of the delay circuit D is grounded, so the charge of the capacitor C ₂ is instantly discharged, the base potential of the transistor Q ₄ decreases, and the transistor Q ₄ is turned off. becomes. As a result, transistor _Q5 is also turned off, and power to relay Y is cut off. Therefore, the contact y is opened, the current flowing to the motor _M1 via the switch _S1 is cut off, and the motor _M1 is immediately stopped, so that the foreign object is not strongly pinched.

Then, by cutting off the power to the motor _M1 , the current detection circuit B cuts off the power to the coil L, and if the switch _S1 is in auto operation, the lock is released and the initial state is returned. It is something.

Also, if the trapped foreign object is removed, the switch 2
is turned off, transistors Q ₂ and Q ₃ are turned off after a time constant due to resistor R ₄ and capacitor C ₁ , and therefore transistors Q ₄ and Q ₅ are turned off by resistor R ₆
After a time constant due to capacitor C ₂ and capacitor C 2 , the switch turns on, relay Y is energized again, and its contact y is closed, so that window 5 can be raised by operating switch S ₁ .

Next, a case will be described in which the switches S ₃ and S ₄ provided on the driver's seat side are pressed to raise and lower the window 5 on the passenger seat side.

Note that the switches S ₃ and S ₄ and the switches S ₅ and S ₆ on the passenger side, which will be described later, are not locked by the coils, and therefore can only be operated manually.

Now, if you press either switch S ₃ or S ₄ (for example, press lift switch S ₃ ), +B → contact y switch S ₃ → switch S ₅ → motor M ₂ → switch ₆ → switch S ₄ → ground Current flows in the direction of the arrow in motor _M2 in the circuit. This allows motor _M2
raises the passenger side window. Then, when the user releases the switch _S3 , the switch _S3 is turned off (the state shown in the figure), power to the motor _M2 is cut off, and the window 5 stops rising.

Note that when the lowering switch _S4 is pressed, the operation is the same as when the switch _S3 is turned on, except that the current direction to the motor _M2 flows in the opposite direction, so a description thereof will be omitted.

Next, when raising and lowering the window 5 on the passenger side using the switches S ₅ and S ₆ on the passenger side, for example, when the raising switch S ₅ is pressed, +B → contact y → switch S ₅ → motor M ₂ → Switch ₆ → Switch S ₄ → Current flows to motor M ₂ in the direction of the arrow in the earth circuit. Therefore, the passenger seat side window 5 is raised.
Further, as described above, when the user releases the switch _S5 , the window 5 stops at that position.

Further, when the lowering switch _S6 is pressed, the operation is similar except that the direction of current to the motor _M2 is reversed, so a description thereof will be omitted.

Next, a case will be described in which a foreign object is caught while pressing the lift switches S ₃ and S ₅ .

Now, if a foreign object gets caught in Wind 5 while it is rising,
The switch 2' of the sensor A' is turned on. This causes the current to be cut off to the relay Y by the same operation as when the switch 2 of the sensor A is turned on, and the contact y is turned off.
In either the pressed state of _S3 or _S5 , the motor _M2
The current to the switch S1 is cut off, and the rising of the window 5 is stopped. The subsequent operations are the same as those when the switch _S1 is turned on, and therefore a description thereof will be omitted.

Next, a case where the user forgets to close the window 5 after turning off the ignition switch IS will be explained.

Now, even if the ignition switch IS is turned off, the charge on the capacitor _C2 will cause the transistor to
Q ₄ and Q ₅ remain on, and contact y of relay Y
is in the on state. Therefore, at this time, the switch
When any one of S ₁ , S ₃ , and S ₅ is turned on, the motors M ₁ and M ₂ are energized by the above operation, and the window 5 is turned on.
can be raised and closed. Also, during this operation, +B → contact y → switch S ₁ → diode D ₁ , D ₆ → transistor via resistors R ₆ , R ₅
Since the base current continues to be supplied to Q ₄ , relay Y can be energized regardless of the discharge of capacitor C ₂ ,
Therefore, the window 5 can be completely closed.

[Effect of idea]

As mentioned above, in this invention, if the sensor detects a foreign object during the operation of the closing switch, the power to the motor is immediately cut off and the closing operation of the object is stopped, so there is less impact on the foreign object. There is no damage to the motor, and the motor can be energized for a certain period of time even after the power switch is turned off, so even if you discover that you have forgotten to close an openable object after the power switch is unplugged, you can turn on the closing switch. In addition to being able to close the openable object by simply closing it, there is no need to make any major changes to the conventional regulator circuit, and it has the advantage of being easy to connect to existing circuits.

[Brief explanation of the drawing]

The figures show one embodiment of the regulator device of the present invention, in which Fig. 1 is a perspective view of the sensor, Fig. 2 is a cross-sectional view of the sensor attached to a weather strip, Fig. 3 is a perspective view of an automobile door, and Fig. 3 is a perspective view of the sensor. FIG. 4 is an enlarged sectional view of the end of the sensor, and FIG. 5 is a control circuit diagram.

Claims (1)

[Scope of claim for utility model registration] A motor for controlling the opening and closing of an openable object such as a window or a sunroof of an automobile, a switch that connects a power source to the motor by switching between forward and reverse directions, and opens and closes the openable object; A sensor detects when a foreign object is caught between the opening and closing object during the closing operation of the opening and closing object, and a sensor that is turned on when a power switch such as an ignition switch is turned on, and continues for a certain period of time even after the power switch is turned off. a delay circuit that maintains an on state; a relay that is energized when the delay circuit is on and connects the switch to the power source that closes the opening/closing object; and a relay that is energized when the switch is on and that the sensor detects a foreign object. and a safety circuit that forcibly turns off the delay circuit and turns off the relay using an output that detects that the relay is pinched.