JPH0732296Y2 - Windshield cleaning equipment - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Field of Industrial Application) The present invention relates to a device for cleaning a windshield of an automobile, and more particularly to a cleaning device for removing an oil film adhering to the windshield. is there.

(Prior Art) The oil film adhering to the windshield of an automobile cannot be removed by a normal cleaning liquid, and recently, a dedicated oil film cleaning liquid for removing the oil film has come into practical use. Generally, a tank for storing a normal cleaning liquid and a tank for storing an oil film cleaning liquid are separately provided, and one nozzle for ejecting to the front surface of the windshield is used in common. Each has a dedicated switch and a dedicated motor, and when one of the switches is turned on, only one cleaning liquid is ejected by the operation of the motor. As a conventional device like this,
22457, which will be described below with reference to the drawings.

FIG. 6 shows the operation timings of the oil film cleaning motor and the wiper motor when the oil film cleaning switch is turned on. When the switch for the oil film cleaning liquid is turned on at time t11, the oil film cleaning motor immediately starts operating, and only the oil film cleaning liquid is ejected. Then, after a lapse of time t12, the wiper motor is interlocked to start the operation, and the wiper wipes the surface of the windshield. When the oil film cleaning switch is turned off at time t13, the oil film cleaning motor is also stopped at the same time, and the ejection of the oil film cleaning liquid is stopped. The wiper motor is at time t1
Continue operation until 4 and then stop. This means that the jetting is performed by the same operation even with the normal cleaning liquid.

(Problems to be solved by the invention) However, such a windshield cleaning device has the following problems.

The nozzle is generally provided on the hood below the windshield, and is installed so that the cleaning liquid is ejected toward the surface of the windshield. However, since air is present inside the nozzle, the cleaning liquid is often scattered on the hood near the nozzle immediately after the cleaning liquid starts to be jetted and immediately before the jetting is stopped. Therefore, when the oil film cleaning liquid is ejected, the wax in the hood is removed by the scattered oil film cleaning liquid, which accelerates the deterioration of the body.

In view of the above situation, the present invention can prevent deterioration of the body by cleaning the windshield immediately after starting and immediately before stopping when the oil film cleaning liquid is ejected, without cleaning the windshield. An object is to provide a cleaning device.

[Constitution of device]

(Means for Solving the Problem) A windshield cleaning device of the present invention comprises: a first cleaning liquid ejecting means for ejecting a first cleaning liquid from a nozzle toward a windshield; In a windshield cleaning device having a second cleaning liquid ejecting means for ejecting a second cleaning liquid having a cleaning performance different from that of the first cleaning liquid toward the windshield, a first time and a second time are respectively set. The timer for measuring and the operation of the oil film cleaning switch cause the first cleaning liquid ejecting means to eject the first cleaning liquid for the first period of time to remove the air inside the nozzle, and then continuously to the second When the second cleaning liquid is ejected to the cleaning liquid ejecting means and the operation of the oil film cleaning switch is stopped, the second cleaning liquid is ejected to the second cleaning liquid ejecting means. Is further provided, and a jetting means controller for continuously jetting the first cleaning liquid to the first cleaning liquid jetting means for the second time is further provided.

Here, the second cleaning liquid may have cleaning performance for removing the oil film of the windshield, and the first cleaning liquid may not have such cleaning performance.

(Operation) When the oil film cleaning switch is activated, the first cleaning liquid is first ejected from the nozzle for the first time, the air existing inside the nozzle is removed, and then the second cleaning liquid is ejected continuously. Thus, the second cleaning liquid is ejected without scattering. The ejection of the second cleaning liquid stops when the operation of the oil film cleaning switch is stopped. Further, the first cleaning liquid is continuously ejected for the second time. As a result, although the first cleaning liquid may be scattered due to the presence of air at the nozzle tip just before the end of ejection, the second cleaning liquid is not scattered.

Here, the second cleaning liquid has a cleaning performance for removing the oil film of the windshield, and when the first cleaning liquid does not have such cleaning performance, the second cleaning liquid does not scatter and the Wax not removed.

(Embodiment) An embodiment of the windshield cleaning apparatus of the present invention will be described with reference to the drawings.

FIG. 1 shows the operation timings of the oil film cleaning motor M2, the normal cleaning motor M1 and the wiper motor M3 when the oil film cleaning switch SW2 is turned on in the cleaning apparatus according to the present embodiment.

Further, FIG. 2 shows the timing at which the normal cleaning liquid and the oil film cleaning liquid are ejected. Here, the normal cleaning liquid 31 is stored in the tank 21.
However, the oil film cleaning liquid 32 is stored in the tank 22. When the normal cleaning motor M1 operates and the valve 26 opens, the normal cleaning liquid 31 is ejected from the nozzle 25 through the pipe 23. When the oil film cleaning motor M2 is operated and the valve 27 is opened, the oil film cleaning liquid 32 is ejected from the common nozzle 25 through the pipe 24.

In FIG. 1, when the oil film cleaning switch SW2 is turned on at time t1, the normal cleaning motor M1 operates until time t2. As a result, the normal cleaning liquid 31 is ejected from the nozzle 25 as shown in FIG. At this time, air is present inside the nozzle 25, and the cleaning liquid is often scattered immediately after the jetting is started, but the normal cleaning liquid 31 does not have the cleaning power to remove the wax in the hood, so the wax falls off. There is no.

Next, the normal cleaning motor M1 is stopped from time t2, the oil film cleaning motor M2 is continuously operated until time t4, and the oil film cleaning liquid 32 is ejected from the nozzle 25 as shown in FIG. 2B. . Since there is no air inside the nozzle 25 during this period, the oil film cleaning liquid 32 does not scatter.

At time t4, the oil film cleaning motor M2 stops. The normal cleaning motor M1 continuously operates until time t5, and the normal cleaning liquid 31 is jetted again as shown in FIG. 2 (c). Times of Day
At time t5, air may enter the inside of the nozzle 25 and the cleaning liquid may be scattered immediately before the ejection is stopped, but since it is the normal cleaning liquid 31 as described above, the wax is not washed off.

Then, from time t3 to time t6, the wiper motor M3 operates and the wiper wipes the windshield.

As described above, according to the windshield cleaning device of the present invention, it is possible to remove the oil film attached to the windshield while preventing the deterioration of the body caused by the wax being dropped.

Next, FIG. 3 shows the configuration of an embodiment of the windshield cleaning device. The upper table in this figure shows the configuration of the switch unit 4 provided on the side of the handle, in which the wiper switch and the cleaning liquid switch are integrated, and the signal lines on this circuit for the positions of the respective switches. , Or the connection state of the power supply line.

The wiper intermittent unit 1 controls the operation of the wiper motor when the wiper intermittently operates at regular time intervals. The wiper motor unit 3 has a wiper motor M3 for driving the wiper and a changeover switch 3b. The changeover switch 3b is for operating the wiper to stop it at the stop position on the windshield even after the wiper switch is turned off. It is on the B side except when the wiper is at the stop position, and comes to the stop position. When it hits, it constantly switches to the A side.

The power supply 2 supplies electric power to each motor and the timer 11. The timer 11 measures the time for which each of the above-mentioned cleaning liquids is ejected.

A case where the oil film cleaning switch SW2 of the cleaning liquid switches is operated will be described. The respective times described below are the same as those described above with reference to FIG.

When the oil film cleaning switch SW2 is turned on at time t1, the power supply 2 causes a current to flow on the line L1 in the direction of arrow A. In this case, the line L1 and the line L2 are connected by the switch unit 4, further flow on the line L2 in the direction of the arrow A and flow to the timer 11b in the timer unit 11. This timer 11b measures from time t1 to time t2, and conducts during this time. The current passing through the timer 11b flows through the line L3 to the normal cleaning motor M1.
As a result, the normal cleaning liquid is ejected. Further current is line L4
It flows to the upper relay 11c. As a result, the normally closed contact 11d is opened because the relay 11c is excited, and no current flows through the oil film cleaning motor M2, and the oil film cleaning liquid is not ejected during this period.

At time t2, the timer 11b stops conducting. For this reason, no current flows through the normal cleaning motor M1 on the line L3, and the ejection of the normal cleaning liquid 31 is stopped. Also relay 11c
, The normally closed contact 11d is closed and the line L
An electric current flows in the direction of arrow B above 5 and flows to the oil film cleaning motor M2. As a result, the oil film cleaning liquid starts to spout.

When the oil film cleaning switch SW2 is turned off at time t4, the current in the direction of the arrow B stops flowing, the operation of the oil film cleaning motor M2 stops, and the oil film cleaning liquid does not jet. At the same time, a current as shown in FIG. 4 flows. The current flowing in the direction of arrow C on the line L11 by the power supply 2 is conducted from the time t4 when the switch SW2 is turned off to the time t5.
And further flows in the direction of arrow C on the line L12. Then, by flowing to the normal cleaning motor M1 on the line L3, the normal cleaning liquid is ejected again.

At time t5, the timer 11a stops conducting, the current in the direction of arrow C stops flowing, and the normal ejection of the cleaning liquid stops.

The operation of the wiper in this case will be described. As described above, the wiper operates from time t3 to time t6 in FIG. 1, and the circuit operation will be described with reference to FIG.
The wiper intermittent unit 1 has the time as shown in FIG.
From t2, the current passing through the timer 11a flows on the line L6 in the direction of arrow B, and the signal is input. Upon receiving this signal, the wiper intermittent unit 1 receives the line L2 after the time t3.
1 Pass a current in the direction of arrow D above. In this case, as the intermittent mode in the wiper switch, the line L21 and the line L22, one ends of which are connected to the terminal S1 of the wiper intermittent unit 1, are connected, and the line L22 is further wiped in the direction of arrow D in the direction of the arrow D3. Flows to. And as an intermittent mode,
The wiper operates at time intervals according to the time constant set by the variable resistor R. This operation is performed when the signal from the timer 11b is at time t.
After being no longer given to wiper intermittent unit 1 from 4,
Continue until time t6.

By using the apparatus of this embodiment, the oil film attached to the windshield can be washed off without dropping the wax of the hood.

The other modes of the wiper switch include OFF, intermittent, speed I, and speed II, respectively. When it is off, all the wiper and cleaning liquid switches are turned off.However, even when the switches are turned off while the wiper is operating,
Line L21 and line L21 so that current is supplied to the wiper motor M3 until the wiper reaches the stop position on the windshield.
22 and are connected.

In the intermittent mode, as described above, the wiper intermittent unit operates by the current flowing from the terminal S2 to the wiper motor M3 at the time intervals determined by the variable resistor R.

In the speed I mode, the line L1 and the line L22 are connected, a current flows from the terminal S2 to the wiper motor M3, and the wiper operates at a low speed.

In the speed II mode, the line L1 and the line L23 are connected and a current flows from the terminal S3 to the wiper motor M3. At this time, the wiper operates at high speed.

The present embodiments are all examples, and the present invention is not limited to the windshield cleaning device. For example, as the cleaning liquid, two types of cleaning liquid with different cleaning performance are used,
Any one can be applied to the one having the cleaning power for removing the wax of the body.

Further, the operation timing of the wiper is not directly related to the effect obtained by the present invention, and may be different from the timing shown in FIG. Similarly, the configuration contents of the apparatus shown in FIGS. 3 to 5 are merely examples, and when the second cleaning liquid is ejected, the first cleaning liquid is ejected immediately after the ejection is started and immediately before the ejection is stopped. As long as the second cleaning liquid is prevented from splashing from the tip of the nozzle,

[Effect of device]

As described above, in the windshield cleaning device of the present invention, when the oil film cleaning switch is activated, the first cleaning liquid is jetted for the first time, and then the second cleaning liquid is continuously jetted so that the oil film cleaning switch When the operation is stopped, the ejection of the second cleaning liquid is stopped and the first cleaning liquid is continuously ejected for the second time, so that the second cleaning liquid is ejected while the air existing inside the nozzle is removed. Therefore, it is possible to prevent the second cleaning liquid from scattering. Second here
The cleaning liquid of No. 1 has a cleaning performance of removing the oil film of the windshield, and when the first cleaning liquid does not have such cleaning performance, the oil film of the windshield can be washed off without removing the wax of the hood. For,
The effect of removing the oil film while preventing the deterioration of the body can be obtained.

[Brief description of drawings]

FIG. 1 is a time chart showing the timing at which each cleaning liquid is ejected and the timing at which a wiper motor is activated in a windshield cleaning device according to an embodiment of the present invention, and FIG. 2 is a process for ejecting each cleaning liquid by the same device. FIG. 3 is a circuit diagram showing the construction of a windshield cleaning apparatus according to an embodiment of the present invention, and FIG. 6 is a time chart showing a conventional windshield cleaning apparatus. 1 ... Wiper intermittent unit, 2 ... Power supply, 3 ... Wiper motor part, 11 ... Timer part, 11a, 11b ... Timer, 11c ...
… Relay, 11d …… Normally closed contact, 21,22 …… Tank, 23,24
…… Pipe, 25 …… Nozzle, 26,27 …… Valve, 31 …… Normal cleaning liquid, 32 …… Oil film cleaning liquid.

Claims (2)

[Scope of utility model registration request] 1. A first cleaning liquid ejecting means for ejecting a first cleaning liquid from a nozzle toward a windshield, and an operation of an oil film cleaning switch to clean the first cleaning liquid from the nozzle toward the windshield. In a windshield cleaning device having a second cleaning liquid ejecting means for ejecting a second cleaning liquid having different performances, a timer for measuring a first time and a second time, respectively, The first cleaning liquid ejecting means ejects the first cleaning liquid for the first time to remove the air inside the nozzle, and then the second cleaning liquid ejecting means continuously ejects the second cleaning liquid. When the operation of the oil film cleaning switch is stopped, the second cleaning liquid ejecting means is caused to stop the ejection of the second cleaning liquid, and the first cleaning liquid is ejected continuously. Windshield cleaning apparatus, characterized in that the first cleaning solution further comprising a jetting unit controller for ejecting the second time means. 2. The second cleaning liquid has a cleaning performance for removing an oil film of the windshield, and the first cleaning liquid does not have a cleaning performance for removing the oil film. Item 1. The windshield cleaning device according to item 1.