JPH0130281Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a control device for operating the wiper and the cowl panel in conjunction with each other in an automobile in which the wiper is stored below the cowl panel which can be raised and lowered.

(Prior Art) Automobile wipers are attached to the cowl panel at the bottom of the windshield for the purpose of removing rainwater, dirt, etc. adhering to the windshield. If this wiper is attached to the cowl panel, there is a risk that wind noise will be generated when the vehicle is running, or that the wiper may be damaged by the car wash brush when the car is washed. For this reason, automobiles have been put into practical use that eliminate this problem by providing a wiper at the bottom of the cowl panel.

Additionally, when removing dust adhering to the windshield with a wiper, a washer nozzle is provided to spray water or the like onto the glass surface to facilitate dust removal. There are also problems with wind noise and damage from car wash brushes. For this reason, for example, in Utility Model Application Publication No. 54-69518, a washer nozzle was attached to the lower part of the cowl and the cowl panel was made rotatable, so that when the washer nozzle was used, the cowl panel was rotated so that the washer nozzle faced the glass surface. something is proposed.

In this way, it is desirable to store the wiper and washer nozzle below the cowl panel to prevent damage and to prevent the generation of noise due to wind noise. There is a problem in that they must be operated in an interlocking manner in an orderly manner, which complicates the operating equipment and control device.

(Purpose of the invention) In view of these problems, the present invention provides a wiper-linked cowl panel control device that allows the cowl panel and the wiper to be operated in an orderly manner by a simple control circuit without using any special operating equipment. The purpose is to

(Structure of the invention) The wiper-linked cowl panel control device of the invention stores the wiper under the cowl panel which can be opened and closed freely, and the wiper is driven by a wiper motor and has an auto-stop switch that opens at the lowest position. The cowl panel is opened and closed by the cowl panel motor, and has an up switch that is open at the open position and closed at any other position, and a down switch that is open at the closed position and closed at any other position. Depending on the on/off state, the first relay means, the second relay means, and the third relay means
The relay means and the drive circuit are operated in sequence, so that the wiper is operated after the wiper switch is closed and the cowl panel is in the open position, and when the wiper switch is opened, the cowl panel is closed after the wiper is in the lowest position. It is characterized by the fact that Note that the first relay means supplies power to the cowl panel motor, the second relay means supplies power to the wiper motor, the third relay means has first switching means and second switching means, and the first relay means supplies power to the wiper motor. The switching means actuates the first means via an up switch in a first switching position, the first relay means via a down switch in a second switching position, and the second switching means operates in a first switching position. A second relay means is connected to earth and is open in a second switching position.

(Effects of the invention) According to the invention, the wiper motor, cowl panel motor, wiper switch, up switch, down switch, and auto-stop switch that are originally necessary for operating the wiper and cowl panel are used as they are, and the first to third relay means and drive The wiper and cowl panel can be controlled in conjunction with a simple circuit. Therefore, the control device can be simplified and costs can be reduced.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of an automobile having a wiper-linked cowl panel control device according to the present invention. When using the wipers 1a and 1b, the left and right cowl panels 2a and 2b are opened as shown, and the wipers 1a and 1b are opened as shown in the figure.
When the wipers a and 1b are not in use, the wipers 1a and 1b are stored below the cowl panels 2a and 2b, and the cowl panels 2a and 2b are closed.

FIG. 2 is a circuit diagram showing an example of a wiper-linked cowl panel control device according to the present invention. This control device includes a wiper switch 8 that turns on and off the wiper operation, a wiper drive device 3 that drives the wipers 1a and 1b, and a left and right cowl panel drive device 1.
0a, 10b, a relay circuit 60, a manual switch 50, a power source 6, and an ignition switch 7 are wired as shown.

The wiper drive device 3 consists of a wiper motor 4 and an auto-stop switch 5 that opens only when the wiper reaches the lowest position, and the left and right cowl panel drive devices 10a and 10b each have a wiper motor 4 and an auto-stop switch 5 that opens only when the wiper reaches the lowest position. up switches 12a, 12b that open only when the cowl panel is in the closed position (completely closed state); down switches 13a, 13b that open only when the cowl panel is in the closed position (completely closed state); and a cowl panel motor that drives the cowl panel to open and close. 11a and 11b. Relay circuit 6
0 is a drive circuit for left and right PNP transistors 9a and 9b, a first relay means for left and right first relays 20a and 20b, a second relay means for left and right second relays 40a and 40b, and a third It has a third relay 30 as a relay means. The first relays 20a, 20b for left and right are each composed of excitation coils 21a, 21b and switching contacts 22a, 22b having three terminals, and the second relays 40a, 40b for left and right are also composed of excitation coils 41a, 41b, respectively. and switching contacts 42a and 42b having three terminals. 3rd relay 3
0 is a first coil having an excitation coil 31 and three terminals.
A first switching contact 32a for left and right serving as a switching means,
32b, and second left and right switching contacts 33a and 33b, which are second switching means for opening and closing between the two terminals. Further, the manual switch 50 includes left and right manual switches 51a and 51b each having three terminals.

Line 101 connected to the positive terminal of power supply 6
is connected to line 102 via ignition switch 7, wiper switch 8 and diode 71, and line 102 is further connected to line 103 via excitation coil 31 of third relay 30, and line 103 is connected to the negative side of power supply 6. , that is, it is grounded. FIG. 2 shows a state in which the ignition switch 7 and wiper switch 8 are open, that is, the cowl panel is closed and the wiper is retracted below the cowl panel.
Now, let's consider operating the wiper.
When the ignition key is turned to close the ignition switch 7 and the wiper switch 8, the excitation coil 31 of the third relay 30 is energized and excited.

When the third relay 30 is energized, the first switching contacts 32a, 32b act to connect the lines 105 and 106 connected to the power supply 6 via the up switches 12a, 12b, respectively, the manual switches 51a, 51b, and the second relay. 40a, 40
Lines 108 and 109 connected to ground are connected through excitation coils 41a and 41b of b, respectively. Further, due to the action of the second switching contacts 33a, 33b, the collectors of the PNP transistors 9a, 9b are switched to the excitation coils 2 of the first relays 20a, 20b.
Each is connected to the ground via 1a and 21b.
The emitters of the PNP transistors 9a and 9b are connected to the power supply 6, and the bases are connected to the above lines 105 and 9b.
106, respectively. Since the up switches 12a and 12b are closed, a voltage is applied to the bases of the transistors 9a and 9b, turning them off. On the other hand, since the manual switches 51a and 51b are placed on the left side as shown in the figure (usually left in this state), the excitation coils 41a and 41b of the second relays 40a and 40b are
is energized, and the second relays 40a and 40b are excited.

When the second relays 40a, 40b are energized, the switching contacts 42a, 42b are activated, and the line 110 connected to the power source 6, the cowl panel motor 11a,
Line 111,1 connected to ground via 11b
12. Therefore, the cowl panel motors 11a, 11b are driven, and the cowl panels 2a, 2b are opened. Cowl panel 2a, 2
When b begins to open, down switches 13a and 13b
is closed, and when the fully open position is reached, the up switches 12a, 12b are opened.

When the top switches 12a and 12b are opened,
Excitation coil 41a of second relay 40a, 40b,
41b is cut off and the second relays 40a, 40
b becomes de-energized, and the lines 111 and 112 are connected to ground through the switching contacts 42a and 42b. Therefore, the driving of the cowl panel motors 11a, 11b is stopped, and the cowl panels 2a, 2b are stopped at the open position. In addition, the power switches 12a and 12b
When is opened, the base voltage of PNP transistors 9a and 9b disappears, transistors 9a and 9b are turned on, current flows from the emitter to the collector, and the first relays 20a and 20b are connected to the collector.
The excitation coils 21a and 21b are energized to excite the first relays 20a and 20b.

When the first relays 20a and 20b are excited, the line 113 connected to the power supply 6 and the line 114 are connected by the switching contact 22b of the right first relay 20b, and the switching contact 22a of the left first relay 20a
The line 114 is connected to the line 115 connected to the ground via the wiper motor 4. Therefore, the wiper motor 4 is driven.

As described above, when the ignition switch 7 and the wiper switch 8 are closed, the cowl panels 2a and 2b are first opened, and then the wipers 1a and 1b are driven.

Next, let's think about when to stop the wiper operation. When wiper switch 8 (or ignition switch 7) is opened, line 101 and line 102 are disconnected, but since the wiper is operating, auto stop switch 5 is closed and line 104 is disconnected from line 102. The connection remains the same. Therefore, even if the wiper switch 8 is opened, the wiper continues to operate until it reaches the lowest position and the auto-stop switch 5 is opened. When the wiper reaches the lowest position and the auto-stop switch 5 opens, the connection between the line 102 and the power source 6 is cut off, and the excitation coil 31 of the third relay 30 is de-energized, making the third relay 30 de-energized. Therefore, the first switching contacts 32a, 32b disconnect the lines 105, 106 and the lines 108, 109, and instead switch the down switch 1.
Line 1 connected to power supply 6 via 3a, 13b
16 and 117 are connected to lines 108 and 109, respectively. At this time, the down switch 13a,
Since relay 13b is closed, second relays 40a and 40b are energized. At the same time, the second switching contacts 33a and 33b are also opened.

When the second relays 40a, 40b are energized, the line 110 is
and lines 111 and 112, respectively, to drive the cowl panel motors 11a and 11b. The cowl panels 2a, 2b are opened and closed continuously by the drive of the cowl panel motors 11a, 11b, and the cowl panels 2a, 2b in the open position are driven by the cowl panel motors 11a, 11b.
When the cowl panel is in the closed position (the cowl panel is completely closed), the down switches 13a and 13b are opened. Note that the up switches 12a and 12b are closed when the cowl panel begins to close. Down switch 13a, 13
When b is opened, the second relays 40a, 40b are de-energized, the lines 111, 112 are connected to ground, and the operation of the cowl panel motors 11a, 11b is stopped.

In this way, when the wiper switch 8 is opened, the cowl panels 2a, 2b are closed after the wipers 1a, 1b reach their lowest positions.

Note that the manual switch 50 is used to switch the wiper 1 for example when replacing or inspecting the wipers 1a and 1b.
cowl panels 2a, 2b without operating a, 1b.
This is a switch for opening and closing only the switch 5.
1a and 51b in the illustrated state (tilted to the left)
When set to , the wiper switch operates according to the operation of wiper switch 8 as described above, and when pushed to the right, line 10
5 and 106 as second relays 40a and 40b, respectively.
It is connected to the ground via the excitation coils 41a and 41b. Therefore, when the up switches 12a, 12b connected to the lines 105, 106 are closed, that is, when the cowl panel is not in the open position, the second relays 40a, 40b are energized and the cowl panel motors 11a, 11b are driven. When the cowl panel motors 11a, 11b are driven, the cowl panels 2a, 2b are opened, and when they reach the open position, the up switches 12a, 12b are opened and the cowl panel motors 11a, 11b are stopped.

Next, when the switches 51a and 51b are tilted to the left, they return to their original state, so when the wiper switch is closed, it continues to operate, and when it is open, the wiper motor 4 does not operate, but the down switches 13a and 13b and the third relay 30 The first switching contacts 32a, 32b of
The second relays 40a, 40b are energized via the motor, and the cowl panel motors 11a, 11b are driven to close the cowl panels 2a, 2b.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an automobile having a wiper-linked cowl panel control device according to the present invention, and FIG. 2 is a circuit diagram showing an example of the wiper-linked cowl panel control device according to the present invention. 4... Wiper motor, 5... Auto stop switch, 8... Wiper switch, 9a, 9b...
Transistor, 11a, 11b...cowl panel motor, 12a, 12b...up switch, 1
3a, 13b...down switch, 20a, 20
b...first relay, 30a, 30b...third relay, 40a, 40b...second relay.

Claims (1)

[Claims for Utility Model Registration] An automobile in which a wiper is stored below a cowl panel and the cowl panel opens and closes, comprising: a wiper motor that drives the wiper; a cowl panel motor that opens and closes the cowl panel; a wiper switch; an up switch that opens when the cowl panel is in the open position and closes at any other position; a down switch that opens when the cowl panel is in the closed position and closes at any other position; and a down switch that opens at the cowl panel's closed position and closes at any other position; an auto-stop switch that opens, and a first switch that supplies power to the cowl panel motor.
relay means; second relay means for supplying power to the wiper motor; actuating the first relay means via the up switch in a first switching position and via the down switch in a second switching position; a first switching means for activating said first relay means; and a second switching means for connecting said second relay means to ground in a first switching position;
a third relay means connected to the second relay means and configured to open the up switch when at least one of the wiper switch and the auto stop switch is closed; a drive circuit that is turned on to drive the second relay means only when the wiper switch is open and the third relay means is operating, and after the wiper switch is closed and the cowl panel is in the open position. A wiper-linked cowl panel control device for an automobile, characterized in that when the wiper is operated and the wiper switch is opened, the cowl panel is closed after the wiper reaches its lowest position.