JPS646064B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a control device for a retractable rear window and a rear wiper for a vehicle.

(Prior Art) Conventionally, this type of control device has been applied to, for example, an openable rear window and a rear wiper of a sports wagon. By the way, in the case of such a control device, if the ignition switch of a sports wagon is turned off while the rear wiper is operating with the rear window fully closed, the wiper blade of the rear wiper is immediately turned off. In such a situation, when the rear window is opened by operating the wind switch located on the outside of the rear of the Sports Wagon, the wiper blade comes off the rear window that is opening and enters the inside of the Sports Wagon. This may lead to

(Object of the Invention) The present invention has been made in view of the above-mentioned problems, and its object is to provide a control device for a vehicle opening/closing rear window and a rear wiper. To prohibit opening of a rear window when the wiper blade of the rear wiper is stopped at a position other than the retracted position due to a non-operation state during operation of the rear wiper with the rear window fully closed.

(Structure of the Invention) In achieving the above object, the structural features of the present invention include a drive mechanism that is put into an operating state necessary to open the retractable rear window of the vehicle, and a drive mechanism that wipes the rear window with a wiper blade. a fully closed detection means that is applied to a rear wiper that is placed in an operating state necessary for the operation, detects when the rear window is fully closed, and enters a fully closed detection state; a first signal generating means that is supplied with power from a DC power source in response to operation of an ignition switch of a vehicle and generates a drive signal necessary to put the rear wiper into operation; and when the wiper blade reaches a retracted position. It has a storage detection means that detects this and enters the storage detection state, and is operated when the rear wiper is placed in the operating state and applies a drive signal from the first signal generation means to the rear wiper, and the rear wiper is placed in the non-operation state. a first operating means for stopping application of the drive signal from the first signal generating means to the rear wiper in response to a change in the storing detecting state of the storing detecting means; a second operating means that is operated to generate an operating signal when opening the rear window when the rear window is not operated; and a second operating means that is supplied with power from the DC power supply in response to the operating means and is necessary for placing the drive mechanism in the operating state. and a second signal generating means for generating a drive signal and applying it to the drive mechanism, when the ignition switch is in the non-operated state when the storage detection means is not in the storage detection state, the operation is stopped. The present invention is characterized in that a prohibition means is provided for prohibiting power feeding from the DC power supply to the second signal generation means regardless of signal generation.

(Effects of the Invention) By configuring the present invention in this manner, the rear wiper is operated in its operating state under the operation of the first operating means under the operation of the ignition switch of the vehicle. When the ignition switch is set to a non-operating state and an operation signal is generated from the second operation means while the rear window is being wiped by the wiper blade, the second operation signal is generated by cutting off the power supply from the DC power source. Even if the rear wiper is deactivated in response to disappearance of the drive signal from the first signal generating means and the wiper blade that is in the wiping operation is immediately stopped, the second signal generating means is activated by the inhibiting means. Regardless of the generation of the operation signal, reception of power from the DC power supply is prohibited and no drive signal is generated, so that the rear window can be maintained in a fully closed state without opening. The occurrence of the above-mentioned problems can be prevented in advance and reliably. Therefore, the wiper blade will not be caught between the rear window and its window frame.

(Example) An embodiment of the present invention will be described below with reference to the drawings. The drawings show an example in which the control device according to the present invention is applied to a drive mechanism and a rear wiper for an openable rear window provided at the rear of a sports wagon. The rear wiper is configured to wipe the wiper blade by repeatedly sliding the wiper blade back and forth across the wipe area in the upper central half of the outer surface of the rear window by rotation of the rotary electric motor M1. has been done. On the other hand, the drive mechanism is configured to open (or close) the rear window by normal rotation (or reverse rotation) of the rotary electric motor M2.

The control device according to the present invention includes a wiper operating mechanism 1
0, relay 20 and normally open type fully closed detection switch 30
The fully closed detection switch 30 detects when the rear window is fully closed and closes it to enter the fully closed detection state, and opens when the rear window is opened to switch to the fully closed detection state. unlock. The relay 20 includes an electromagnetic coil 21 and a double-throw switch 22.
The electromagnetic coil 21 is grounded at one end via the fully closed detection switch 30, and the other end is connected to the positive side of the DC power supply B via the ignition switch IG of the sports wagon. connected to the terminal. Therefore, when the fully closed detection switch 30 detects the fully closed state, the ignition switch IG closes by inserting the ignition key of the sports wagon into the ignition key cylinder located in the passenger compartment. When this happens, the electromagnetic coil 21 receives power from the DC power source B and is excited. Moreover, this electromagnetic coil 21 is cut off from the DC power supply B and becomes demagnetized by opening the fully closed detection switch 30 or the ignition switch IG. The double-throw switch 22 has both fixed contacts 22a, 22b, and each of these fixed contacts 22a, 2.
The fixed contact 22a is grounded, while the fixed contact 22b is connected to the positive terminal of the DC power supply B. Thus, the double-throw switch 22 closes the double-throw contact 22c to the fixed contact 22a when the electromagnetic coil 21 is demagnetized, and also closes the double-throw contact 22c to the fixed contact 22b in response to the excitation of the electromagnetic coil 21. Then, power is supplied from the DC power supply B to the double-throw contact 22c.

The wiper operating mechanism 10 includes a wiper switch 11
and a pair of normally closed storage detection switches 12, 13.
and an electromagnet 14, and the storage detection switch 12 detects when the wiper blade reaches the upper edge of the wiping area (i.e., the first storage position) and opens to enter the storage detection state. . The storage detection switch 13 is configured to detect when the wiper blade is in the first position.
When it is retracted from the retracted position to the second retracted position located above it by the plunger of the electromagnet 14 as will be described later, this is detected and opened to enter the retracted detection state. After the electromagnet 14 receives power supply excitation to its electromagnetic coil, the electromagnetic force generated by cutting off the power supply excitation displaces the plunger and stores the wiper blade from the first storage position to the second storage position. The movable contact of the storage detection switch 13 is grounded regardless of whether the wiper switch 11 is operated or not.

When the wiper switch 11 is operated, the double-throw contact 2 of the double-throw switch 22 in the relay 20 is
2c is connected to the non-grounded input terminal of the armature winding of the rotary motor M1. This means that, in response to the operation of the wiper switch 11, the rotary electric motor M1 is supplied with power from the DC power source B via the double-throw contact 22c of the double-throw switch 22 and rotates. Further, when the wiper switch 11 changes from the operating state to the non-operating state, the double-throw contact 22c of the double-throw switch 22 is connected to the non-grounding side input terminal of the armature winding of the rotary motor M1 via the storage detection switch 12. At the same time, it is connected to one terminal of the electromagnetic coil of the electromagnet 14, and the other terminal of the electromagnetic coil of the electromagnet 14 is grounded together with the movable contact of the storage detection switch 13. In other words, the rotary electric motor M1 responds to the change of the wiper switch 11 to the non-operating state,
It is supplied with power from the DC power supply B through the double throw contact 22c of the double throw switch 22 and the storage detection switch 12 and continues to rotate, and when the storage detection switch 12 changes to the storage detection state, it is cut off from the power supply and stops,
Further, in response to the change of the wiper switch 11 to the non-operating state, the electromagnet 14 is grounded together with the movable contact of the retraction detection switch 13 at the other end of its electromagnetic coil, and at the same time, the electromagnet 14 is grounded at the other end of the electromagnetic coil. It receives power from the DC power source B through the double throw contact 22c of the switch 22 and the storage detection switch 12, and is excited, and is cut off in response to a change from the power supply excitation to the storage detection state of the storage detection switch 12.

Further, the control device includes a window switch 40,
It has diodes 50a to 50d, transistor circuits 60, 70, and relays 80, 90, 100, and the window switch 40 is provided in a key cylinder located at a suitable position on the rear outer wall of the sports wagon. Double-throw contact 41 upon insertion of the ignition key into the key cylinder.
is applied to the opening side fixed contact 42 or the closing side fixed contact 43 from its neutral position. transistor circuit 6
0 has a transistor 61, and this transistor 61 is grounded at its base via a resistor 62 and connected to the positive terminal of a DC power supply B via a resistor 63 and an ignition switch IG. There is. Further, the transistor 61 is grounded at its emitter, and the transistor 61 is grounded at its emitter.
The collector of No. 1 is connected to the positive terminal of DC power supply B via electromagnetic coil 81 of relay 80. Thus, the transistor 61 is supplied with power from the DC power supply B via both resistors 62 and 63 in response to the closing of the ignition switch IG, and becomes conductive, and is rendered non-conductive in response to the opening of the ignition switch IG. becomes.

The relay 80 has the above-mentioned electromagnetic coil 81 and a normally open switch 82.
is connected to the positive side terminal of the DC power supply B at one end, and connected to the collector of the transistor 61 at the other end, and connected to each of the diodes 50a and 5.
They are connected to the opening side fixed contact 42 and the closing side fixed contact 43 of the window switch 40 through the terminals 0c, respectively. Thus, in response to the conduction (or non-conduction) of the transistor 61, the electromagnetic coil 81 receives power from the DC power supply B and is excited (or demagnetized).
In addition, when the transistor 61 is non-conductive, the electromagnetic coil 81 turns on the diode 50a in response to the opening fixed contact 41 or the closing fixed contact 43 of the double throw contact 41 of the window switch 40.
Alternatively, when 50c is turned on, it receives power from the DC power supply B and is excited, and is demagnetized by cutting off the power supply by returning the double-throw contact 41 to the neutral position. The normally open switch 82 is closed in response to the excitation of the electromagnetic coil 81, and opened in response to the demagnetization of the electromagnetic coil 81.

The transistor circuit 70 has a pair of transistors 71 and 72, and the base of the transistor 71 is grounded through a resistor 71a.
Further, the emitter of the transistor 71 is connected to the positive side terminal of the DC power supply B via the switch 82 of the relay 80, and the collector of the transistor 71 is connected to the positive side terminal of the window switch 40 via the electromagnetic coil 91 of the relay 90 and the diode 50b. It is connected to the opening side fixed contact 42 and the relay 100
It is connected to the closing side fixed contact 43 of the window switch 40 via the electromagnetic coil 101 and the diode 50d. Thus, transistor 71 responds to the closing of switch 82 of relay 80 and resistor 7
Power is supplied from the DC power source B through 1a, and conduction occurs, and when the switch 82 of the relay 80 is opened, the DC power source B
It is cut off from the current and becomes non-conductive.

The transistor 72 has its collector connected to the base of the transistor 71, and its emitter connected to the positive terminal of the DC power supply B via a switch 82 of a relay 80. Also,
The base of the transistor 72 is connected to a fixed contact of the storage detection switch 13 via a resistor 72a, and is also connected to the emitter of the transistor 72 via a resistor 72b. However, transistor 7
2, when the wiper switch 11 is not operated and the storage detection switch 13 is closed, both resistors 72a and 72 are turned on in response to the closing of the switch 82 of the relay 80.
Power is supplied from the DC power supply B via the DC power source B to maintain the conductive transistor 71 in a non-conductive state, and when the wiper switch 11 is operated, the storage detection switch 13 is in the storage detection state, or the switch 82 of the relay 80 is opened, the voltage is supplied from the DC power supply B. It is cut off and becomes non-conductive.

The relay 90 has an electromagnetic coil 91 connected as described above and a double-throw switch 92, and the electromagnetic coil 91 is supplied with power from the DC power supply B via the switch 82 of the relay 80 in response to the conduction of the transistor 71. It is energized and is demagnetized by being cut off from the power supply by the non-conduction of the transistor 71. The double-throw switch 92 has a double-throw contact 92a and both fixed contacts 92b, 92c, and the double-throw contact 92a is connected to the first input terminal of the armature winding of the rotary motor M2. The fixed contact 92b is grounded, while the fixed contact 92c is connected to the positive terminal of the DC power supply B via the switch 82 of the relay 80. Thus, the double-throw contact 92 connects the double-throw contact 92a to the fixed contact 9 when the electromagnetic coil 91 is demagnetized.
2b, and in response to the excitation of the electromagnetic coil 91, the double-throw contact 92a is turned on to the fixed contact 92c.

The relay 100 has an electromagnetic coil 101 connected as described above and a double-throw switch 102, and the electromagnetic coil 101 is supplied with power from the DC power supply B via the switch 82 of the relay 80 in response to the conduction of the transistor 71. It is energized and is demagnetized by being cut off from the power supply by the non-conduction of the transistor 71. The double throw switch 102 has a double throw contact 102a.
and both fixed contacts 102b and 102c, and the double-throw contact 102a is connected to the first input terminal of the armature winding of the rotary motor M2. The fixed contact 102b is grounded, while the fixed contact 102c is connected to the positive terminal of the DC power supply B via a switch 82 of a relay 80. However,
The double-throw switch 92 throws the double-throw contact 102a into the fixed contact 102b when the electromagnetic coil 101 is demagnetized, and turns the double-throw contact 102a into the fixed contact 102c in response to the excitation of the electromagnetic coil 101.

In such a case, when the double-throw contact 92a of the double-throw switch 92 is connected to the fixed contact 92c under the condition that the double-throw contact 102a of the double-throw switch 102 is connected to the fixed contact 102b, the rotary motor M2 is activated by the switch of the relay 80. 82, power is supplied from the DC power supply B through the double-throw contact 92a of the double-throw switch 92 and the first input terminal of its armature winding, and the double-throw switch 92 rotates normally to open the rear window. Further, when the fixed contact 92b of the double-throw switch 92a of the double-throw switch 92 is closed, the double-throw contact 102 of the double-throw switch 102
When a is applied to the fixed contact 102c, the rotary motor M2 is supplied with power from the DC power supply B via the switch 82 of the relay 80, the double-throw contact 102a of the double-throw switch 102, and the second input terminal of its armature winding. Reverse to close the rear window. In addition,
The rotating electric motor M2 stops when the double-throw contact 92a is turned on to the fixed contact 92b and the double-throw contact 102a is turned on to the fixed contact 102b.

In this embodiment configured as described above, if the ignition switch IG is opened by inserting the ignition key of the sports wagon into the ignition key cylinder in the vehicle interior,
The relay 20 turns on the double-throw contact 22c of the double-throw switch 22 to the fixed contact 22b by excitation of the electromagnetic coil 21 based on power supplied from the linear power supply B, and at the same time, the transistor circuit 60 is supplied with power in the same way as the electromagnetic coil 21. Transistor 61 is made conductive. At this time, the fully closed detection switch 30 is in the fully closed detection state with the rear window fully closed, and both storage detection switches 12 and 13 are in the fully closed detection state when the wiper blade is stored in the second storage position. Both are in the storage detection state.

At this stage, when the wiper switch 11 is operated, the rotating electric motor M1 is connected to the fixed contact 22b and the double-throw contact 22c of the double-throw switch 22 from the DC power supply B.
The wiper blade is rotated by being supplied with electric power through the wiper, and repeatedly slides the wiper blade back and forth across the wiping area of the rear window. At this time, the storage detection switch 12,1
3 are both closed by the movement of the wiper blade into the wiping area. After that, if the wiper switch 11 is put into a non-operating state, the rotating electric motor M
1 continues to rotate as it is supplied with power from the DC power supply B via the double throw contact 22c of the double throw switch 22 and the storage detection switch 12, and the electromagnetic coil of the electromagnet 14 is supplied with power via the storage detection switch 12 in the same way as the rotary motor M1. It is excited by Then, when the wiper blade reaches its first storage position, the rotary electric motor M1 stops in response to the change of the storage detection switch 12 to the storage detection state, and at the same time, the electromagnet 1
4 stores the wiper blade in its second storage position by displacement of the plunger based on its electromagnetic force. At this time, the storage detection switch 13 and the storage switch 12 enter the storage detection state.

In this state, the ignition key is released from the ignition key cylinder in the vehicle interior and inserted into the key cylinder outside the rear of the sports wagon to open the double-throw contact 41 of the window switch 40. When the fixed contact 42 is connected, the transistor 6 of the transistor circuit 60
1 becomes non-conductive, and the relay 20 demagnetizes its electromagnetic coil 21, so that the double-throw contact 2 of the double-throw switch 22
2c to the fixed contact 22a to cut off the wiper switch 11 from the DC power supply B, and the relay 80 closes the switch 82 by exciting the electromagnetic coil 81 based on the power supplied from the DC power supply B, and the transistor 71 of the transistor circuit 70 However, storage detection switch 1
When the transistor 72 is non-conductive based on the storage detection state of No. 3, power is supplied from the DC power supply B through the switch 82 and the relay 90 becomes conductive. By energizing the coil 91, the double-throw contact 92a of the double-throw switch 92 is connected to the fixed contact 92c.

At this time, since the double-throw contact 102a of the double-throw switch 102 in the relay 100 is connected to the fixed contact 102b, the rotating electric motor M
2 is supplied with power from the DC power supply B through the switch 82 of the relay 80 and the fixed contact 92c and double-throw contact 92a of the double-throw switch 92 in the relay 90, and rotates forward to open the rear window and open the fully closed detection switch 30. On the other hand, wind stitch 40
When the double-throw contact 41 is connected to the closing-side fixed contact 43, the rotating electric motor M2
2, the electromagnetic coil 101 of the relay 100 is energized based on the conduction of the transistor 71, and the double-throw contact 1 of the double-throw switch 102 is thereby excited.
Except for the fact that the rear window is closed by being supplied with power in response to the application of the terminal 02a to the fixed contact 102c, the other operations are substantially the same as those for opening the rear window.

By the way, as mentioned above, when the ignition switch IG is closed, the wiper switch 11
While the rotary electric motor M1 is rotating to reciprocate the wiper blade along the wiping area of the rear window, the ignition key is removed from the ignition key cylinder in the vehicle interior. When released, the ignition switch IG opens and transistor circuit 6
0 transistor 61 becomes non-conductive, relay 2
0 is a double throw switch 2 based on demagnetization of the electromagnetic coil 21
By closing the double throw contact 22c to the fixed contact 22a at 2, the operation switch 11 is cut off from the DC power source B, and the rotation of the rotary motor M1 is stopped to immediately stop the wiper blade in the wiping area of the rear window. At this time, it is assumed that the wiper blade is not in the first and second storage positions, and both storage detection switches 12 and 13 are in the closed state.

After that, if the ignition key is inserted into the key cylinder on the outside of the rear of the sports wagon and the double-throw contact 41 of the wind stitch 40 is inserted into the open-side fixed contact 42, the relay 80 will Under the action of diode 50a,
The switch 82 is closed by the excitation of the electromagnetic coil 81 based on the power supply from the DC power supply B, thereby allowing the power supply from the DC power supply B to the double throw switch 92 of the relay 90. However, when the storage detection switch 13 is in the closed state and the storage detection switch 13 is grounded, the transistor 72 of the transistor circuit 70 is supplied with power from the DC power supply B through both resistors 72a and 72b, and becomes conductive, maintaining the transistor 71 in a non-conductive state. . Therefore, as described above, even if the window switch 40 is operated to open the rear window, the electromagnetic coil 91 of the relay 90 is turned off by the transistor 7 which is in a non-conducting state.
1, the DC power supply B is cut off and the demagnetized state is maintained, so the double throw switch 92 is connected to the double throw contact 92a.
is maintained by being cut off from the fixed contact 92c. In other words, the rotary electric motor M2 remains stopped without being allowed to receive power from the DC power source B via the double-throw contact 92, and as a result, the rear window remains fully closed and the conventional It is possible to reliably prevent the occurrence of problems such as those described in the technical section.

In the above embodiment, an example was explained in which the device of the present invention was applied to control the opening/closing rear window and rear wiper of a sports wagon.
The present invention is not limited to this, and the present invention may be applied to any vehicle as long as it is equipped with an openable rear window and a rear wiper.

Furthermore, in the embodiment described above, an example has been described in which the transistor circuit 70 prohibits the excitation of the electromagnetic coil of the relay 90 in relation to the storage detection switch 13; however, the present invention is not limited to this; In place of the transistor circuit 70, an electric circuit is adopted in place of the transistor circuit 70, which prohibits the excitation of the electromagnetic coil of the relay 90 when the storage detection switch 13 is open, and allows the excitation of the electromagnetic coils of both the relays 90 and 100 when the storage detection switch 13 is open. It's okay.

[Brief explanation of drawings]

The drawing is an electrical circuit diagram showing one embodiment of the present invention. Explanation of symbols, B...DC power supply, IG...Ignition switch, M1, M2...Rotating motor,
10... Wiper operation mechanism, 11... Wiper switch, 12, 13... Storage detection switch, 2
0, 80, 90...Relay, 30...Fully closed detection switch, 40...Wiper switch, 70...Transistor circuit.

Claims (1)

[Claims] 1 Applies to a drive mechanism that is placed in an operating state necessary to open the retractable rear window of a vehicle, and a rear wiper that is placed in an operating state necessary to wipe the rear window with a wiper blade, A fully closed detection means detects the fully closed condition and enters the fully closed detection state; The rear wiper comprises a first signal generation means for generating a drive signal necessary to put the wiper in an operating state, and a storage detection means that detects when the wiper blade reaches a storage position and enters a storage detection state, and the rear wiper The rear wiper is operated to apply a drive signal from the first signal generating means to the rear wiper when the rear wiper is in the operating state, and after the rear wiper is in the non-operating state, the first signal generator is operated in response to the change of the storage detection means to the storage detection state. a first operation means for stopping application of a drive signal from the first signal generation means to the rear wiper; and a first operation means for generating an operation signal when the rear window is opened when the ignition switch is not operated. and a second signal generation means that is supplied with power from the DC power supply in response to the operation signal to generate a drive signal necessary to put the drive mechanism into an operating state and apply it to the drive mechanism. In the control device, when the ignition switch is in a non-operating state when the storage detection means is not in the storage detection state,
A control for a retractable rear window and a rear wiper for a vehicle, characterized in that a prohibition means is provided for prohibiting power supply from the DC power supply to the second signal generation means regardless of generation of the operation signal. Device.