JPH03246143A - wiper device - Google Patents

Abstract

PURPOSE:To provide a small capacity one-touch wiper switch and a simplified construction thereof, by providing the one-touch wiper switch shortcircuited without interposing a resistor and intermittent wiper switch of an intermittent wiper control circuit therein. CONSTITUTION:When an one-touch lever switch is turned on by an operating lever 32, current is supplied from a battery 34 to a contact 28, a movable terminal 26 and a wiper driving circuit 24, while a transistor 24a is turned on, a common contact 29a is connected to a contact 29b by the current supply of a relay 29 and a wiper motor 30 is rotated. When the one-touch lever switch is turned off by the operating lever 32, the contact 28 and movable terminal 26 are opened, the transistor 24a is turned off, the relay 29 is turned off and the common contact 29a is connected to a contact 29c. When the wire motor 30 is not in the automatic stopping position, a common contact 31a of a motor switch 31 is connected to a contact 31c, so that the wiper motor 30 keeps rotating. When the wiper motor 30 comes to the automatic stopping position, the common contact of the motor switch 31 is connected to a contact 31b to stop the motor.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates primarily to a wiper device for automobiles, which includes a one-touch wiper switch that operates the wiper motor only when the switch is turned on.

Conventional technology The conventional technology will be explained with reference to FIGS. 7 to 12.

FIG. 7 is a front view of a combination horn 3-switch equipped with a wiper device having a one-touch wiper, FIG. 8 is a side view of the same, and FIG. 9 is an enlarged sectional view of the same part.
Fig. 10 is an explanatory diagram for explaining the configuration of the one-touch wiper, Fig. 11 is an explanatory diagram for explaining the operation when the one-touch wiper switch is operated, and Fig. 12 is an explanatory diagram for explaining the operation when the one-touch wiper switch is operated. FIG. 3 is an explanatory diagram for explaining a state until the motor enters an auto-stop state.

According to the same figure, 1 is the main body of the combination Yonsuinochi, 2
3 is a wiper knob, 3 is a wiper lever 4 is a wiper motor having a motor changeover switch 5, 6 is a battery, and the wiper motor 4 and battery 6 are a combination/wiper lever 4.
It is attached to the side of the vehicle other than switch 1. Note that 7 is a movable terminal having a contact 8, 9 is a contact connected to one end of the battery, and 10 is a contact, which is connected to a common contact of the wiper motor changeover switch 5. 11 is an actuator for transmitting one-touch wiper operation to the movable terminal 7; 12 is a contact 9. Terminal board (or printed circuit board) that fixes the movable terminal 7, 13 fixes the movable terminal 7 to the terminal board (
or a printed circuit board) 12.

Next, the operation of the above-mentioned prior art will be explained. As shown in FIG. 9, when the wiper knob 2 is operated toward you, the lever 3 moves downward as shown in FIG.
is pushed down and connected to the contact 8 or 9 attached to the movable terminal 7.

When contact 8 and contact 9 are connected in this way, battery 6
From ignition switch (hereinafter referred to as IGSW) 6
a. Contact 9. Contact point 8. Current flows through the movable terminal 7 to the wiper motor 4, and the wiper motor 4 begins to rotate.
The wiper motor 4 continues to rotate while the one-touch wiper switch is operated. If you stop this operation,
As shown in FIG. 9, the wiper knob 2 includes a chevron portion 15 provided on a sliding body 14, a ball 16. The spring 17 automatically returns the knob to its original position, and the lever 3 also returns to its original position. At this time, as shown in FIG. 12, the actuator 11 rises due to the return force of the movable terminal 7, and the connection between the contacts 9 and 8 is released, and the current to the motor 4 is cut off at -, but the contact 8 is now due to the self-resetting force of movable terminal 7, contact 1
0 and the wiper motor 4 is not in the automatic stop position, the common terminal of the motor switch 5 is connected to the positive terminal side of the battery, so the wiper motor 4 is
Pantry 6, IGSW6a.

Motor switch5. Contact point 10. Contact point 8. Current flows to the wiper motor 4 through the movable terminal 7, and the wiper motor 4 continues to rotate.

When the motor comes to the automatic stop position, the common contact of the motor switch 5 is switched to the negative side, so the power supply to the wiper motor 4 is cut off, and the wiper motor 4 is stopped as shown in FIG. 10.

Note that 50 is an intermittent wiper control circuit that operates the wiper motor 4 intermittently, and includes a resistor 51 and a capacitor 52.
．． Although it is composed of a relay 54 and the like, a description of its operation will be omitted.

However, in the conventional wiper device described above, since the wiper motor 4 is driven by directly operating the one-touch wiper switch, the driving current for the wiper motor 4 flows through the one-touch wiper switch. The problem was that the capacity had to be increased.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention utilizes an intermittent wiper control circuit to perform a one-touch wipe/<- operation.

Function: Since the present invention performs one-touch wiper operation using an intermittent wiper control circuit, it is possible to reduce the number of windshield switches and to simplify the wiper device.

Example An embodiment of the present invention will be described with reference to FIGS. 1 to 6.

Fig. 1 is a partial side cross-sectional view of a combination/yeon switch incorporating a wiper motor of the present invention and a wiper device having a one-touch wiper function excluding /<, 7teri, etc.; FIG. 3 is an explanatory diagram illustrating the configuration of the one-touch wiper; FIG. 4 is an explanatory diagram illustrating the one-touch wiper in an operating state; FIG. 5 is an explanatory diagram illustrating the state until the wiper automatically stops, and FIG. 6 is an explanatory diagram illustrating the configuration of a one-touch wiper according to another embodiment of the present invention. According to FIGS. 1 to 5, 23 is an intermittent wiper control circuit, 24 is a wiper motor drive circuit in the intermittent wiper control circuit 23, 25 is a terminal plate, 26 is a movable terminal,
27 is an actuator, 28 is a contact, and 29 is a common contact 29a in the intermittent wiper control circuit 23, a switching contact 29
b, 29c; 30 is the wiper motor; 3
Reference numeral 1 is an auto-stooth switch located inside the wiper motor. Further, the operating lever 33 is a glue head for fixing the movable terminal 26 to the terminal plate 25, 34 is a pantry, and the operating lever 32 is a spring 35. paul 36
It is fixed to a sliding body 37, and the sliding body 37 is attached to a holding plate 39.
is held by the main body 38. Further, 40 is inside the intermittent wiper motor.

Note that the one-touch wiper switch uses actuator 2.
7. Contact point 28. It is composed of a movable terminal 26, etc., and also includes a resistor 24b and a capacitor 24c for setting the intermittent time.
The battery 34 and the wiper motor drive circuit 24 are short-circuited without going through the intermittent wiper switch of the resistor 24b1.

Next, to explain the operation of the above embodiment, when the operation lever 32 is operated toward the user in the direction of turning on the one-touch wiper switch, the tip of the operation lever 32 is moved to the second position with point A in FIG. 1 as the fulcrum. It goes down as shown in the picture,
Actuator 27 is pushed downward and movable terminal 26 comes into contact with contact 28 . When this contacts, battery 34 connects contacts 28 . Movable terminal 26. Current flows through the transistor 24a of the wiper motor drive circuit 24, the transistor 24a turns on, and the relay 2
9 is energized, the common contact 29a of the relay is connected to the relay contact 29b, current flows from the battery 34 to the relay contacts 29b, 29a, and the wiper motor 30.
begins to rotate as shown in Figure 4. While the one-touch wiper operation continues (while the actuator 27 is pressed down), the relay 29 continues to be turned on and the wiper motor 30 continues to rotate. When the one-touch wiper operation is turned off, the operating lever <-32 automatically returns to the original lever position by the chevron portion 37a provided on the sliding body 37 and the spring 35 pole 36, and the self-returning force of the movable terminal 26 The connection between the contact 28 and the movable terminal 26 is released, and the wiper motor drive circuit 2
4 is no longer energized, transistor 24a is turned off,
Relay 29 is also turned off. When the relay 29 is turned off, whether the common contacts 29a and 29b of the relay were conductive or not, the common contact 29a and the contact 29c will be connected, and the wiper motor 30 or the wiper motor 30, if it is not in the automatic stop position, will be connected. The common terminal 31a of the motor switch 31 is connected to the positive terminal 31c of the battery as shown in FIG.
．． From the contact 31c of the motor switch 31 to the contact 31a,
Current flows from the contact 29c of the relay 29 to the common contact 29a and the wiper motor 30, and the wiper motor 30 continues to rotate.

When the wiper motor 30 comes to the automatic stop position, the common contact 31a of the motor switch 31 is connected to the negative side contact 31b as shown in FIG. 3, and the power to the wiper motor 30 is cut off, causing the wiper motor 30 to stop. It turns out.

As described above, in the above embodiment, a one-touch wiper switch is provided so that voltage can be supplied to the wiper motor drive circuit without going through the resistor 24b of the series circuit of the resistor 24b and the capacitor 24c for setting the wiper drive interval. Therefore, wiper driving can be performed with the wiper driving interval set to 0.

FIG. 6 shows another embodiment, and to explain the configuration and operation, when the one-touch wiper is operated using the operating lever 32, the actuator 27 is pushed down and the movable terminal 26 is connected to the contact 28. . If this contacts the battery 34. relay coil 29d,
Possible 1 terminal 261E point 28. Current flows to the ground, turning on the relay 29, and the common contact 29a of the relay 29 is connected to the battery positive terminal 29b, which connects the wiper motor 3.
0, and the wiper motor 30 begins to rotate.

As described above, in the above embodiment, the wiper motor drive circuit 2
4, an intermittent wiper control circuit 23 consisting of a relay 29 driven by this wiper motor drive circuit 24, and a one-touch wiper switch provided in parallel with the wiper motor drive circuit 24, so that the relay 29 is directly driven by this one-touch wiper switch. This is to drive the wiper motor 30.

Note that the operations when the one-touch wiper operation is turned off are the same as those in the above embodiment, and will therefore be omitted. Further, although the wiper device of the present invention has been described as having the combination switch built-in the wiper motor 30 and the battery 34, all or part of the other parts may be provided on the vehicle body side. It is.

Effects of the Invention The present invention performs one-touch wiper operation using an intermittent wiper control circuit, so the one-touch wiper operation of an automobile wiper device is performed by the intermittent wiper control circuit, so the control current flowing through the one-touch wiper switch is only a minute current, and , the structure of the one-touch wiper switch can be simplified.

[Brief explanation of drawings]

FIG. 1 is a partial side sectional view of a combination machine equipped with a wiper device having a one-touch wiper according to an embodiment of the present invention, and FIG. 2 shows the wiper device in a state where the one-touch wiper switch is operated. FIG. 3 is an explanatory diagram for explaining the configuration of the one-touch wiper, FIG. 4 is an explanatory diagram for explaining the operating state of the one-touch wiper, and FIG. 5 is a partial side sectional view. FIG. 6 is an explanatory diagram illustrating the configuration of a wiper device according to another embodiment of the present invention, and FIG. 7 is a diagram illustrating a wiper device having a conventional one-touch wiper. FIG. 8 is a front view of the combination switch with a built-in device, FIG. 8 is a leg view of the same side, FIG. 9 is an enlarged sectional view of the same part, and FIG. 10 is an explanation explaining the configuration of the one-touch wiper. Figure 11
The figure is an explanatory diagram illustrating the operation when the one-touch wiper switch is operated, and FIG. 12 is an explanatory diagram illustrating the state after the one-touch wiper switch is operated until the wiper motor automatically stops.

Claims (3)

[Claims] (1) An intermittent wiper control circuit consisting of at least a circuit for setting the wiper drive interval and a wiper motor drive circuit, and a one-touch wiper switch that sets the setting value of the circuit for setting the wiper drive interval to 0. wiper device. (2) At least a series circuit of a resistor and a capacitor for setting the drive interval of the wiper, a wiper motor drive circuit, and a one-touch operation lever operated to short-circuit the resistance of the series circuit to drive the wiper motor drive circuit. A wiper device consisting of a wiper switch. (3) An intermittent wiper control circuit consisting of at least a wiper motor drive circuit, a relay driven by the wiper motor drive circuit, and a one-touch wiper control circuit driven by an operating lever connected in parallel to the wiper motor drive circuit to drive the relay. A wiper device consisting of a wiper switch.