JPH02175356A - Windshield wiper device - Google Patents

Abstract

PURPOSE:To secure better forward visibility by connecting a front shield wiper motor operation circuit to a head lamp cleaner motor operation circuit using an interlocking circuit with which a front shield wiper motor is also driven while a head lamp cleaner motor is driven. CONSTITUTION:When a head lamp cleaner switch 31 is turned on, an exciting coil of head lamp cleaner relay 32 is energized and a first and second relay contact points 36 and 41 are turned on. When the first relay contact point 36 is turned on, a head lamp cleaner motor 38 is driven and washing fluid is sprayed on a lamp lens. When the second relay contact point 41 is turned on, the exciting oil 14 of a wiper relay 13 is excited, the relay contact point 15 of the wiper relay 13 is connected to the earth side stationary contact point 17, and a wiper motor 7 is driven for wiping off. Thus, even if the washing fluid sprayed on the lamp lens is spattered and sticked on a frontshield window glass, it is wiped off automatically.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a front wiper device.

Conventional Technology In addition to the front wiper device, it has been considered to install a so-called headlamp cleaner device that injects cleaning liquid onto the lamp lens of the headlamp to clean the lamp lens. It has a structure in which the drive is controlled independently of the lamp cleaner device (Japanese Utility Model Application No. 62-51066, Japanese Utility Model Application No. 61
(See Japanese Utility Model Application No. 63-7546 i).

Also, when looking at headlamp devices, for example,
As shown in Japanese Patent No. 3-75461, there is a tendency to improve aerodynamic performance by inclining the lamp lens along the inclination of the front part of the vehicle body.

Problems to be Solved by the Invention When a headlamp cleaner device injects cleaning liquid onto the lamp lens of a headlamp device while driving, the cleaning liquid that collides with the lamp lens and scatters is carried by the airflow and adheres to the front windshield, causing forward visibility. Sexuality may become worse. In this case, it is necessary to wipe the front windshield by driving the front wiper device. While driving in this way, the driver may find it troublesome to operate the front wiper device after operating the headlamp cleaner device.

Means for Solving the Problems A front wiper motor operating circuit and a headlamp cleaner motor operating circuit are connected by an interlocking circuit that drives the front wiper motor when the headlamp cleaner motor is driven.

Operation When the headlamp cleaner device is operated and the cleaning liquid is sprayed onto the lamp lens of the headlamp device, the front wiper device also automatically wipes the front windshield.

Embodiment 1 First embodiment (see Fig. 1) I is a front wiper control unit, and in this first embodiment, a so-called wiper type is used, in which the stop position of the wiper blade (not shown) is set at one end of the wiping range. A front wiper device is shown, which roughly includes a front wiper motor operating circuit 2, a wiper washer switch 3, an intermittent amplifier 4, and an off-shear motor operating circuit 5.

Here, wiper operation and front window washer operation operation parts are wiper washer switch 3 WASH, high switch section HIGH for high speed operation, and low switch section t for low speed operation.
, OW, intermittent operation interval switch section INT
, the front wiper control unit 1 will be explained focusing on the operation of the off switch l0FF.

■When operating low switch section LOW, high switch section 1 (TCH), E terminal and L terminal of wipe power washer switch 3 or I
(The terminal becomes the ground potential, and the circuit consisting of +power supply 6 -> wiper motor 7 - L terminal or H terminal - E terminal -> earth 8... (1) is established, and the wiper motor 7 is driven to wipe.

■When operating the off switch section OFF, this is often done when the wiper motor 7 is being driven and the wiper blade is located outside the wiping range stop position, or at this time, the movable contact of the auto stop switch 9 10
is connected to the ground side fixed contact 11 of the auto stop switch 9 as shown by the imaginary line, so first, +1R
6 → Wiper motor 7 → L terminal → S terminal of wiper washer switch 3 → Relay contact 15-4 of wiper relay 13
Auto stop switch side fixed contact 16 of wiper relay 13 → Movable contact IO → Earth side fixed contact I+-Earth 8
The circuit consisting of (2) is established, and the wiping drive of the wiper motor 7 continues.

Next, when the wiper blade reaches the stop position, the movable contact 10 of the auto stop switch 9 connects to the fixed contact 12 on the auto stop position side as shown by the solid line, the aforementioned circuit (2) opens, and the wiper motor 7 is driven to wipe. stops.・・・・・・・・・(3) The above-mentioned circuit (2)
, (3) constitutes an auto-stop function.

■When the interval switch ffi I N'r is operated, first the E terminal and the 1 terminal of the wiper washer switch 3 become the ground potential, and the wiper washer switch board ■8 of the intermittent amplifier 4 goes to the ground potential. . Then,
Due to the timer function built into the intermittent amplifier 4, the wiper relay port 19 of the intermittent amplifier 4 is intermittently brought to the ground potential for a predetermined period of time. As a result, the excitation coil 14 of the wiper relay 13 receives power from the power supply 6, and the relay contact 15 connects to the ground side fixed contact 17 of the wiper relay 13, +power supply 6 - wiper motor 7 -L terminal → S terminal - relay Circuit consisting of contact 15 -> ground side fixed contact 17 - ground 8 (4) is established, and the wiper motor 7 is driven to wipe.

Thereafter, the wiper relay port I9 is opened by the timer action of the intermittent amplifier 4, power to the exciting coil 4 is cut off, and the relay contact 15 is connected to the fixed contact 16.

At this time, the movable contact 1 of the auto stop switch 9 is still
0 is connected to the ground side fixed contact I+, the above-mentioned circuit (2) is established, and the wiper motor 7 continues to drive for wiping.

Next, when the wiper blade reaches the stop position and the movable contact 10 of the auto stop switch 9 connects to the fixed contact 12 on the auto stop position side, the above-mentioned circuit (2) is opened and the wiping drive of the wiper motor 7 is stopped. do. ...
. . . The above-mentioned circuit (3) From this stop, after a predetermined time delay due to the timer action of the intermittent amplifier 4, the wiper relay boat 19 becomes the ground potential again, and the wiper motor 7 is driven to wipe and then stops. In this way, until the off-switch portion OF is operated, the wiper motor 7 is intermittently repeatedly driven to wipe by repeatedly turning on and off the ground potential of the wiper relay boat I9.

■When the washer switch part WΔS H is operated, the E terminal and W terminal of wiper washer switch 3 become ground potential, and the circuit consisting of + power supply 6 → washer motor 20 → W terminal → E terminal - earth 8. ......(5) is established, the washer motor 20 is driven to spray, and the cleaning liquid is sprayed onto the front windshield (not shown) from the washers pump (not shown) linked to this, and the intermittent amplifier 4 is activated. The washer motor boat 21 becomes at ground potential. Then, due to a timer function incorporated in the intermittent amplifier 4, which is different from the above-mentioned one, after a sufficient time delay for the cleaning liquid to reach the front windshield, the wiper relay port 19 is continuously brought to the ground potential for a predetermined period of time. As a result, the excitation coil 14 receives electric power from the power supply 6, and the above-mentioned circuit (4) is established, and the wiper motor 7 is driven to wipe the windshield after several times of spraying of the cleaning liquid. do. Then, the wiper relay port 1 is operated by the another timer action of the intermittent amplifier 4.
After the wiper motor 9 is opened, the wiping drive of the wiper motor 7 is stopped via the auto-stop function of the auto-stop switch 9 (circuits (2) and (3) described above).

On the other hand, 30 is a headlamp cleaner motor operating circuit, and when the headlamp cleaner switch 31 is turned on, the excitation coil 33 of the headlamp cleaner relay 32 is turned on and the electric power flows from the power source 34 to the ground 35. In response, the normally open first relay contact 36 of the headlamp cleaner relay 32 turns on. As a result, a circuit consisting of the seventh power supply 37 - the first relay contact 36 -> the hepto lamp cleaner motor 38 -> the ground 39...
- (6) is established, the headlamp cleaner motor 38 is driven to spray, and the cleaning liquid is sprayed onto the lamp lens of the headlamp device (not shown) from the headlamp cleaner pump (not shown) linked thereto.

40 is an interlocking circuit that connects the front wiper motor operating circuit 2 and the headlamp cleaner motor operating circuit 30.
are connected so that the front wiper motor 7 is also driven when the headlamp cleaner motor 38 is driving the injection. Specifically, the interlocking circuit 40 connects the normally open second relay contact 41 of the headlamp cleaner relay 32 and one end of the second relay contact 4I to the end of the excitation coil 14 of the wiper relay 13 on the wiper relay boat side. Electrical route 4
2, and an electrical path 44 connecting the other end of the second relay contact 41 to ground 43.

According to the structure of the first embodiment described above, when the headlamp cleaner switch 31 is turned on, power is supplied from the + power supply 34 to the excitation coil 33 of the headlamp cleaner relay 32, and the first relay contact 36 and the second relay Contact 41 is turned on. Due to this ON operation of the first relay contact 36, the above-mentioned circuit (6) is established, and the headlamp cleaner motor 38 is driven to eject. Due to the ON operation of the second relay contact 4I, the end of the excitation coil 14 of the wiper relay 13 on the wiper relay boat side becomes ground potential, and the excitation coil 14 receives the electric power flowing from the →-power supply 6 to the earth 43, and the excitation coil 14 The contact I5 is connected to the ground side fixed contact I7, the above-mentioned circuit (4) is established, and the wiper motor 7 is driven for wiping. In other words, when the headlamp cleaner motor 38 is driven to spray, the wiper motor 7 of the front wiper device is also driven to wipe, so even if the cleaning liquid sprayed on the lamp lens of the headlamp device scatters or adheres to the front windshield, the can be wiped out automatically.

Next, when the headlamp cleaner switch 31 is turned off, the excitation coil 3 of the headlamp cleaner relay 32
3 is cut off, and the first relay contact 36 and the second relay contact 41 are turned off. When the first relay contact 36 is turned off, the injection drive of the upward lamp cleaner motor 38 is stopped.

The wiper relay 13 is turned off by turning off the second relay contact 41.
The end of the excitation coil 14 on the wiper relay boat side is opened and the excitation coil is opened! Power to wiper relay 13 is cut off.
The relay contact 15 returns automatically and connects to the fixed contact I6. Then, while the wiper blade is located at a position other than the stop position of the wiping circle E, the movable contact 1i of the auto stop switch 9 (as shown by the imaginary line, connects to the ground side fixed contact 11), and the above-mentioned circuit (2) is established, and the wiping drive of the wiper motor 7 continues.After this, when the wiper blade reaches the stop position, the movable contact 10 of the auto stop switch 9 is connected to the fixed contact 12 on the auto stop position side as shown by the solid line. Then, the aforementioned circuit (2) is opened and the wiping drive of the wiper motor 7 is stopped.
...Circuit (3) Second Embodiment (Refer to Figure 2) In this second embodiment, a front wiper control unit has a so-called rise-up lever in which the stop position of the front wiper blade is set below the wiping range. Since IA is shown, the front wiper motor operating circuit 2A includes a wiper relay 50 and a rise-up relay 55. Then, either one of the low switch part LOW and the high switch part HIGH of the wiper washer switch 3A
When one is turned on, the Ev4 terminal and the 17 terminal or H terminal of the wiper washer switch 3A become ground potential, and the excitation coil 51 of the wiper relay 50 and the excitation coil 56 of the rise-up relay 55 receive power, and the wiper relay 50 The relay contact 52 of the rise-up relay 55 is connected to the ground side fixed contact 54, and the relay contact 57 of the rise-up relay 55 is connected to the power supply side fixed contact 59. As a result, +
A circuit consisting of power supply 6 - power supply side fixed contact 59 - relay contact 57 - wiper motor 7 - L terminal or I (terminal - E terminal - ground 8)... (7) is established, and wiper motor 7 Drive to dispel.

■With the movable contact 61 of the auto stop switch 60 connected to the power supply side fixed contact 63 as shown by the imaginary line due to the wiping drive of the wiper motor 7, when the off switch part OFF of the wiper washer switch 3A is operated, the wiper washer Since the S terminal and L terminal of the switch 3A are at ground potential due to the connection between the relay contact 52 and the ground side fixed contact 54, first, +power supply 6-1! Circuit consisting of source side fixed contact 59 - relay contact 57 - wire motor 7 - L terminal - 8 terminal - relay contact 52 - ground side fixed contact 54 - ground 8
(8) is established, and the wiping drive of the wiper motor 7 continues.

Then, when the intermittent amplifier 4 counts the I-cycle of wiping by its timer function, the wiper relay boat 19
opens, wipe relay 50 and rise-up relay 5
5 and the excitation coils 51 and 56 are cut off, the relay contact 52 of the wiper relay 50 self-returns and connects to the auto stop switch side fixed contact 53, and the relay contact 57 of the rise-up relay 55 self-returns and connects to the ground. The above-mentioned circuit (8) is opened, and the movable contact 61 of the auto stop switch 60 remains connected to the power supply side fixed contact 63, and the wiping drive of the wiper motor 7 is stopped, and the wiper blade starts wiping. Stop at one end of the range. As a result, + power supply 6 - power supply side fixed contact 63 - movable contact 6 - auto stop switch side fixed contact 53 - relay contact 52 → S
Circuit consisting of terminal → L terminal - wiper motor 7 - relay contact 57 - ground side fixed contact 58 - ground 8
......(9) is established, the wiper motor 7 rotates in the direction opposite to the wiping drive (hereinafter simply referred to as reverse drive), and the wiper blade reaches the stop position below the wiping range. When the auto stop switch 60 moves to the 1st position, the movable contact 61 of the auto stop switch 60 connects to the fixed contact 62 on the auto strobe 1 position side, and the aforementioned circuit (9) is opened, the reverse drive of the wiper motor is stopped, and the wiper blade is stopped. Stop in position.

- When the interval switch section INT is operated, the E terminal and the 1 terminal of the wiper washer switch 3A become ground potential, and the wiper washer switch boat 18 of the intermittent amplifier 4 becomes ground potential.

Then, due to the timer action built into the intermittent amplifier 4, the wiper relay port 19 of the intermittent amplifier 4 is intermittently brought to the ground potential for a predetermined period of time, and the excitation coils 51 and 56 of the wiper relay 50 and rise-up relay 55 are connected to the power source 6. Upon receiving the power, the relay contact 52 connects to the ground side fixed contact 5.
4, the relay contact 57 is connected to the power supply side fixed contact 59, the above-mentioned circuit (8) is established, and the wiper motor 7 is driven for wiping.

Thereafter, when one cycle of wiping is counted by the timer action of the intermittent amplifier 4, the wiper report port 19
is opened, power to the excitation coils 51 and 56 is cut off, the aforementioned circuit (8) is opened, the wiping drive of the wiper motor 7 is stopped, and the wiper blade is stopped at one end of the wiping range.

From this stop, after a delay of one predetermined time due to the timer action of the intermittent amplifier 4, the wiper relay port +9 becomes the ground potential again, and the wiper motor 7 is driven to wipe and then stops, thus turning the off switch section OFF'. Until the wiper motor 7 is operated, the wiping drive of the wiper motor 7 is repeated intermittently by repeating the ground potential and opening of the wiper relay port I9.

■When the washer switch section WASH of the Waipau washer switch 3A is operated, the Waipau washer switch 3
The E terminal and W terminal of A become ground potential, the above-mentioned circuit (5) is established, and the off-shear motor 20 is driven to spray, and the washing liquid is sprayed from the off-shear pump (not shown) linked to this to the front window (not shown). At the same time as the glass is blown, the washer motor boat 21 of the intermittent amplifier 4 becomes grounded. Then, due to a timer function incorporated in the intermittent amplifier 4, which is different from the above-mentioned one, after a sufficient time delay for the cleaning liquid to reach the front windshield, the wiper relay port 19 is continuously brought to the ground potential for a predetermined period of time.

As a result, the excitation coils 51 and 56 receive power from the + power supply 6, and the above-mentioned circuit (8) is established, and the wiper motor 7 is activated so that the wiper blade wipes the front windshield sprayed with the cleaning liquid several times. Dispel drive.

Then, when several cycles of wiping are counted by the another timer action of the intermittent amplifier 4, the wiper relay port 19 opens, and the movable contact 61 of the auto stop switch 60 remains connected to the power supply side fixed contact 63I, and the wiper motor 7 After the wiping drive is stopped, the wiper motor 7 is driven in the reverse direction through the establishment of the circuit (9) described above, and the movable contact 61 of the auto-stop switch 60 is connected to the contact 62 on the auto-stop position side, and the wiper motor 7 is driven in the reverse direction. The wiper blade will stop at the stop position.

Here, in the headlamp cleaner motor operating circuit 30 in this second embodiment, as in the first embodiment, when the headlamp cleaner switch 31 is turned on, the excitation coil 33 of the headlamp cleaner relay 32 is
4 to the ground 35, the normally open first relay contact 36 of the headlamp cleaner relay 32 is turned on, the above-mentioned circuit (6) is established, and the headlamp cleaner motor 38 is driven to eject. A cleaning liquid is sprayed onto the lamp lens of the headlamp device (not shown) from a head rush cleaner bomb (not shown) that operates in conjunction with this.

Also, in the interlocking circuit 40 of the second embodiment, the normally open second relay contact 41 of the headlamp cleaner relay 32 and one end of the second relay contact 41 are used to excite the wiper relay 50, similarly to the first embodiment of M Brothers. It is composed of an electrical path 42 that connects to the wiper relay boat side end of the coil 5I, and an electrical path 44 that connects the other end of the second relay contact 41 to the ground 43.

Therefore, in this second embodiment as well, when the headlamp cleaner switch 31 is turned on, the headlamp cleaner motor 38 is driven to eject, and when the second relay contact 41 is turned on, the wiper relay 50 and the rise-up relay 55 are excited. The fiber relay boat side ends of the coils 51 and 56 are at ground potential, and the above circuit (8)
is established, and the wiper motor 7 is driven for wiping. In other words, when the headlamp cleaner motor 38 is driven to eject, the front wiper motor 7 is also driven to wipe.

Then, when the headlamp cleaner switch 31 is turned off, power to the excitation coil 33 of the heptlamp cleaner relay 32 is cut off, and the first relay contact 36 and the second relay contact 41 are turned off. When the first relay contact 36 is turned off, the injection drive of the upward rad lamp cleaner motor 38 is stopped. Due to the off operation of the second relay contact 41, the wiper relay boat side ends of the excitation coils 51.56 of the wiper relay 50 and rise-up relay 55 are opened, power to the excitation coils 51.56 is cut off, and the wiper relay 50 and rise-up relay 55 are Relay contact 52.5 with
7 self-recovers. Then, after the above-mentioned circuit (9) is established and the wiper motor 7 is driven in reverse, the movable contact 61 of the auto-stop switch 60 connects to the fixed contact 62 on the auto-stop position side, and the reverse drive of the wiper motor 7 is stopped, and the wiper blade stops at the stop position.

Third Embodiment fAl (See Figure 3.4) In this third embodiment, the front wiper control section IA and the headlamp cleaner motor operating circuit 30 are connected to the second embodiment fAl.
The front wiper motor operating circuit 2A and the headlamp cleaner operating circuit 30 of the front wiper control section are constructed in the same manner as in the embodiment, and the interlocking circuit 4OA is constructed of a second relay contact 41, an electrical path 42A, and an electrical path 44. It is connected. In other words, the electrical path 42A of the interlocking circuit 40A is connected across one end of the second relay contact 41 and the end of the washer motor 20 on the washer motor boat side.

Between the connection point 70 between the washer motor port side end of the washer motor 20 and the electrical path 42A, and the connection point 7I between the washer motor port side end of the washer motor 20 and the E terminal of the wiper washer switch 3A. A diode 72 is interposed therein. The diode 72 is arranged in the forward direction from the washer motor boat 2 to the washer motor 20, and when the second relay contact 41 is turned on by the on operation of the headlamp cleaner switch 31, the diode 72 is arranged in the forward direction from the washer motor boat 2 to the washer motor 20. 20 is prevented from flowing into the intermittent amplifier 4.

Therefore, according to the structure of the third embodiment, when the headlamp cleaner switch 31 is turned on, the headlamp cleaner motor 38 is driven to eject, and when the second relay contact 41 is turned on, the washer motor boat of the intermittent amplifier 4 is driven. 21 becomes the ground potential, but the injection drive of the washer motor 20 is stopped due to the current flow blocking function of the diode 72, while the wiper motor boat 19
becomes the ground potential continuously for a predetermined period of time, and the circuit described above (8
) is established, and the wiper motor 7 is driven to wipe with a slight time delay. In other words, when the headlamp cleaner switch 3I is turned on, the cleaning liquid is sprayed onto the lamp lens of the headlamp device, and after a slight delay, the wiper blade of the front wiper device wipes the front windshield several times. (See Figure 4).

Then, when the headlamp cleaner switch 31 is turned off, power to the excitation coil 33 of the headlamp cleaner relay 32 is cut off, and the first relay contact 36 and the second relay contact 4I are turned off. By turning off the first relay contact 36, the injection drive of the headlamp cleaner motor 38 is stopped. Due to the off operation of the second relay contact 41, the wiper motor boat 21 of the intermittent amplifier 4 is disconnected from the ground potential, and the other timer function incorporated in the intermittent amplifier 4 causes the wiper relay to be turned off after several cycles of wiping have been counted. Just as the boat 19 opens, the wiper relay boat side ends of the excitation coils 51.56 of the wiper relay 50 and rise-up relay 55 open after a time delay (see FIG. 4), and the power to the excitation coils 51.56 is cut off. Thereafter, the wiper motor 7 operates in the same manner as in the second embodiment, and after the aforementioned circuit (9) is established and the wiper motor 7 is driven in the reverse direction, the reverse drive is stopped and the wiper blade is stopped at the stop position. Furthermore, even if the current flow blocking function of the diode 72 is provided, when the washer switch part WASI (of the wiper washer switch 3A is operated), the E terminal and W terminal of the wiper washer switch 3A become ground potential, and the aforementioned circuit (5 ) is established, the washer motor 20
At the same time, the washer motor boat 21 of the intermittent amplifier 4 is brought to the ground potential, and the wiper motor 7 is driven for wiping as in the second embodiment. At this time, the wiping drive of the wiper motor 7 is stopped in the same manner as in the second embodiment described above. Note that the operation of wiping drive and wiping drive stop+ of the wiper motor 7 by operations other than the wiper washer switch section WΔSH of the wiper washer switch 3A is the same as in the second embodiment, and will therefore be omitted.

It should be noted that the present invention is not limited to the above-mentioned embodiment, and may be applied to a structure in which a heptlamp wiper device is provided in addition to the headlamp cleaner device, although not shown in the drawings. Also, depending on the shape of the vehicle body and the shape of the lamp lens, cleaning fluid sprayed from the headlamp cleaner device may splash onto the front windshield when the vehicle speed exceeds a predetermined speed. It is also possible to provide a front wiper device so that when the headlamp cleaner switch is turned on when the vehicle speed is above a predetermined speed, the front wiper device is activated.

Effects of the Invention According to the present invention, as shown in F-F, when the headlamp cleaner device is operated to spray cleaning liquid onto the lamp lens of the headlamp device, the front wiper device can automatically wipe the front windshield. can. As a result, even if the cleaning liquid from the headlamp cleaner device adheres to the front windshield, it is wiped away, and gravity visibility can be ensured without bothering the driver. Furthermore, the lamp lens of the headlamp device is tilted significantly backwards, allowing for a vehicle body shape that improves aerodynamic performance. Furthermore, it is easy to increase the cleaning ability of the headlamp cleaner device by setting the jet of cleaning liquid to be powerful.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing a first embodiment of the invention, FIG. 2 is a circuit diagram showing a second embodiment of the invention, and FIG. 3 is a circuit diagram showing a third embodiment of the invention.
FIG. 4 is a circuit diagram showing the embodiment, and a time chart showing the operations of the hebutt lamp cleaner motor and wiper motor of the third embodiment. 1.1A...front wiper control section, 2,2A...
Front wiper motor operating circuit, 7... wiper motor, 30... headlamp cleaner motor operating circuit, 4
0.40A...Interlocking circuit.

Claims (1)

[Claims] (1) A front wiper device characterized in that a front wiper motor operating circuit and a headlamp cleaner motor operating circuit are connected by an interlocking circuit that also drives the front wiper motor when the headlamp cleaner motor is driven.