JP2517947Y2 - Vehicle window washer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a vehicle window washer device.

(Prior Art) It is well known that an automobile window glass is provided with a window washer device for injecting a washer liquid to the window glass in order to remove dirt and the like attached thereto. In recent years, in such a window washer device, an attempt has been made to efficiently remove stains on the wind glass by changing the injected washer liquid from a linear state to a diffused state. (See, for example, Japanese Utility Model Laid-Open No. 58-52056).

(Problems to be Solved by the Invention) When the washer fluid injection in the window washer device is changed from the linear state to the diffusion state as in the above-mentioned known example, the diffusion state injection is performed at the initial stage of the injection (that is, before the wiper device is started). If this is done, the washer liquid will spread over the entire surface of the windshield, which may impair the forward field of view. In particular, if the front view of the driver's seat is obstructed, driving may be hindered.

The present invention has been made in view of the above points, and an object of the present invention is to make it possible to secure both a front field of view in the initial stage of injection and an improvement in cleanability.

(Means for Solving the Problems) In the present invention, as means for solving the above problems,
Injecting means for performing a linear injection of the washer liquid in a straight line state onto the windshield surface and a diffusion injection for injecting the washer liquid in a diffused state, a wiper device for wiping the windshield surface, and a washer to the injecting means. A window washer device for a vehicle, comprising: a washer switch for urging liquid supply; an injection state switching device that operates to selectively actuate linear injection or diffusion injection by the injection device; and the washer switch. Simultaneously with the input operation, the injection state switching means is operated to selectively execute the linear state injection by the injection means, the wiper device is operated during the execution of the linear state injection, and the injection state switching means is operated after the operation of the wiper device. Control means for selectively executing the diffusion state injection by the injection means by the operation of Door is attached.

(Operation) In the present invention, the following operations can be obtained by the above means.

That is, by the input operation of the washer switch, before the start of the wiper device, the washer liquid is injected onto the windshield surface by the linear injection from the injection means, and the wiper device starts operating during the execution of the linear injection. After that, a series of operations is performed in which the washer liquid is jetted to the surface of the window glass by the diffused state jet from the jetting means. Therefore, it is possible to achieve both the securement of the driver's forward visibility before the operation of the wiper device and the improvement of the cleanability after the operation of the wiper device.

(Advantages of the Invention) According to the present invention, the jetting means for performing the linear jetting of the washer liquid in a linear state and the diffusion jetting of the washer liquid in a diffused state, and the windshield surface are wiped off. In a window washer device of a vehicle, which is provided with a wiper device for the purpose, and a washer switch for urging the supply of washer liquid to the injection means, the window washer device acts to selectively operate the linear injection or the diffusion injection by the injection means. At the same time when the injection state switching means and the washer switch are operated, the injection state switching means is operated to selectively execute the linear state injection by the injection means, and the wiper device is operated during the execution of the linear state injection, and the wiper is operated. After the operation of the device, the injection state switching means is actuated to expand the injection means. Attaching a control means for selectively executing the scattered state injection,
By the input operation of the washer switch, before the wiper device starts to be started, the washer liquid is jetted onto the windshield surface by the linear state jet from the jetting means, and the wiper device is started during the straight line jetting execution, After that, a series of operations is performed in which the washer liquid is sprayed onto the windshield surface by the diffused state spray from the spraying means, so that the driver's forward visibility is ensured at the initial stage of spraying before the wiper device is activated. As a result, it is possible to improve the cleaning property by spraying the diffused state after the wiper device is activated, and there is a practical effect that both safety and efficient wind glass cleaning can be achieved.

Embodiments Hereinafter, some preferred embodiments of the present invention will be described with reference to the accompanying drawings.

Embodiment 1 FIGS. 1 to 3 show a vehicle window washer device according to Embodiment 1 of the present invention.

The window washer device of this embodiment includes a washer tank 1 for storing washer liquid, and an air pump 2 for sending pressurized air to the washer tank 1 under pressure.
A regulator 3 for adjusting the pressure of the pressurized air, and spraying means 4 and 5 for spraying the washer liquid pressure-fed from the washer tank 1 onto the window glass 6.

The injection means 4 and 5 are installed respectively in front of the driver's seat and in front of the passenger seat, and the injection means 4 on the front side of the driver's seat
Includes both a linear injection nozzle 7 configured to inject the washer liquid in a linear state and a diffusion injection nozzle 8 configured to inject the washer liquid in a diffused state, and the injection means 5 on the front side of the passenger seat. Has only a linear spray nozzle 7 configured to spray the washer fluid in a straight line.

The injection means 4 is attached to a cowl front panel 9 as shown in FIG. Although not shown, the other injection means 5 is similarly attached to the cowl front panel 9. Reference numeral 10 is a bonnet and 11 is a bonnet seal.

Then, from the washer tank 1, the injection means 4,
In the middle of the washer liquid supply passage 12 for supplying the washer liquid to the solenoid valve 5, a solenoid valve functioning as an injection state switching means that acts to selectively operate the linear injection nozzles 7, 7 or the diffusion injection nozzle 8 13 are installed. The washer liquid supply passage 12 includes a main supply passage 12a extending from the washer tank 1 to the solenoid valve 13 and a first branch supply passage 12b extending from the solenoid valve 13 to the linear injection nozzles 7, 7.
And a second branch supply passage 12c from the electromagnetic valve 13 to the diffusion injection nozzle 8, and the operation of the solenoid valve 13 causes the first branch supply passage 12b or the second branch supply passage 12c.
The washer fluid is selectively supplied.

In FIG. 1, reference numeral 14 is a wiper device for wiping the surface of the windshield 6, and a wiper motor 15
And a wiper blade 16 driven by the wiper motor 15. Reference numeral 17 is a steering wheel.

And, in the window washer device of this embodiment,
As shown in FIG. 2, the air pump 2 and the wiper motor
A control unit 18, which acts as a control means for controlling the operation of 15, 15 and the solenoid valve 13, is attached.

The control unit 18 is composed of, for example, a microcomputer and includes a CPU 19, a timer 20, an air pump driving transistor 21 and a wiper motor driving transistor 22. Reference numeral 23 is a washer switch for starting the operation of the window washer device (in other words, for prompting the supply of the washer liquid to the jetting means 4 and 5), and 24 is a power battery.

The operation of the window washer device configured as described above is
This will be described with reference to the flowchart shown in the figure.

The driver operates the washer switch 23 (that is,
When it is turned on, the air pump 2 starts operating and pressurized air is supplied to the washer tank 1 (step
S ₁ ). And the control by the control unit 18 is
At step S ₂ , the timer 20 starts counting, and at the same time, the solenoid valve 13 is switched to the first branch supply passage 12b side (step S ₃ ). Then, the washer liquid supplied from the washer tank 1 is ejected in a linear state from the linear ejection nozzles 7, 7. Therefore, the forward visibility of the occupant (particularly the driver) is not hindered.

Then, the control of the control unit 18 is performed in step S ₄
Then, the CPU 19 controls the wiper motors 15 and 15 to start the wiper devices 14 and 14. At this time, if the washer switch 23 is OFF (step S _5), the wiper motor 15, 15 and the air pump 2 is stopped, the timer 20 is reset (Step S _6, S _7). On the other hand, if the washer switch 23 holds the ON state in step S _5, the control by the control unit 18 proceeds to step S _8,
If the timer 20 is determined to be counted up, the solenoid valve 13 is switched to the second branch supply passage 12c side (step S _9). Then, the washer liquid supplied from the washer tank 1 is jetted in a diffused state from the diffusion jet nozzle 8, and the wind glass 6
The cleaning performance of the wiper device will be significantly improved.
Since 14 and 14 are operating, it does not hinder the forward visibility of passengers (especially the driver).

The diffusion state injection by the diffusion injection nozzle 8 is continued until the washer switch 23 is turned off (step S
_10), when the washer switch 23 is turned OFF, the control by the control unit 18 proceeds to step S _6, in the same manner as described above, the wiper device 14, 14 and the air pump 2 is stopped, the timer 20 is reset (Step S ₇ ).

As described above, according to this embodiment, by the input operation of the washer switch 23, the washer on the surface of the windshield 6 is performed by the linear injection from the linear injection nozzles 7 and 7 before the wiper devices 14 and 14 are started. Liquid injection is performed and the wiper device 14, 1
4 is started and after that, diffusion injection nozzle 8
The washer liquid is jetted to the surface of the windshield 6 by the diffused state jet from the above. Therefore, the wiper device 14,1
It is possible to improve the cleanability by the diffused state injection after the operation of the wiper devices 14 and 14 while ensuring the driver's forward visibility at the beginning of the injection before the operation of 4. It is compatible with cleaning.

Embodiment 2 FIG. 5 is a system block diagram of a window washer device according to Embodiment 2 of the present invention.

In the case of this embodiment, the operating time of the window washer device is automatically determined. That is, the linear state injection time by the linear injection nozzle 7 and the diffusion state injection time by the diffusion injection nozzle 8 are determined by the two timers 20 and 25.

The operation of the window washer device configured as described above is
This will be described with reference to the flowchart shown in the figure.

The driver operates the washer switch 23 (that is,
When it is turned on, the air pump 2 starts operating and pressurized air is supplied to the washer tank 1 (step
S ₁ ). And the control by the control unit 18 is
At step S ₂ , the timer 20 starts counting, and at the same time, the solenoid valve 13 is switched to the first branch supply passage 12b side (step S ₃ ). Then, the washer liquid supplied from the washer tank 1 is ejected in a linear state from the linear ejection nozzles 7, 7. Therefore, the forward visibility of the occupant (particularly the driver) is not hindered.

Then, the control of the control unit 18 is performed in step S ₄
Then, the CPU 19 controls the wiper motors 15 and 15 to start the wiper devices 14 and 14. After that, the control by the control unit 18 is performed in step S ₅
The process proceeds, if the timer 20 is determined to be counted up, the solenoid valve 13 is switched to the second branch supply passage 12c side (step S _6). Then, the washer liquid supplied from the washer tank 1 is jetted in a diffused state from the diffusion jet nozzle 8, and the cleanability of the wind glass 6 is significantly improved. Since it is operating, it does not hinder the forward view of the occupant (especially the driver).

The diffusion state injection by the diffusion injection nozzle 8 is continued until the timer 25 is counted up (step
S ₇ , S ₈ ) and when the timer 25 is counted up, the control by the control unit 18 proceeds to step S ₉ , the wiper devices 14 and 14 and the air pump 2 are stopped, and the timer 20 is reset (step S ₁₀ ).

As described above, also in the case of this embodiment, before the wiper devices 14 and 14 are started by the input operation of the washer switch 23, the linear injection from the linear injection nozzles 7 and 7 is performed to the surface of the windshield 6. When the washer liquid is injected, the wiper device 1
4, 14 are started to operate, and thereafter, a series of operations are performed in which the washer liquid is jetted onto the surface of the wind glass 6 by the diffused state jet from the diffuser jet nozzle 8. Therefore, the wiper device 1
While ensuring the driver's forward visibility at the beginning of injection, which is before the operation of 4,14, it is possible to improve the cleanability by the diffused state injection after the operation of the wiper devices 14, 14, which is safe and efficient. It is possible to achieve compatibility with window glass cleaning.

The present invention is not limited to the configuration of each of the above-mentioned embodiments, and it goes without saying that the design can be appropriately changed without departing from the scope of the invention.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic configuration of a vehicle window washer device according to a first embodiment of the present invention, FIG. 2 is a system block diagram of the window washer device according to the first embodiment of the present invention, and FIG. FIG. 5 is a side view showing a mounting state of an injection unit having a diffusion injection nozzle in the window washer device according to the first embodiment of the invention, FIG. 4 is a flowchart showing the operation of the window washer device according to the first embodiment of the present invention, and FIG. 2 is a system block diagram of a vehicle window washer device according to a second embodiment of the present invention;
FIG. 6 is a flow chart showing the operation of the window washer device according to the second embodiment of the present invention. 4, 5 ... Injection means 6 ... Wind glass 7 ... Linear injection nozzle 8 ... Diffusion injection nozzle 13 ... Injection state switching means (solenoid valve) 14 ... Wiper device 18 ... Control means (control unit) 23 ...... Washer switch

Claims (1)

(57) [Scope of utility model registration request] 1. A jetting means for jetting the washer liquid in a straight line state onto the surface of the windshield glass and a jetting means for diffusing the washer liquid in a diffused state, and a wiper device for wiping the windshield surface. A window washer device for a vehicle, comprising a washer switch for urging the supply of washer fluid to the injection means, and an injection state switching functioning to selectively actuate linear injection or diffusion injection by the injection means. Means and the washer switch input operation and at the same time the injection state switching means is operated, the linear state injection by the injection means is selectively executed, the wiper device is operated during the linear state injection, and the wire device is operated. Later, the injection state switching means is operated to select the diffusion state injection by the injection means. Windshield washer system of the vehicle, characterized in that the control means for the line is attached.