JPH07223511A - Window washer device - Google Patents

Abstract

PURPOSE:To provide a simple window washer device with a supplying function which is applicable irrespective of a difference in vehicle structure. CONSTITUTION:A window washer device is provided with a closed type first tank 1 to store washer fluid, a washer injecting means 5 which sucks the washer fluid from the first tank 1 and injects it onto the window glass 4 of a vehicle, a second tank which is installed together with the first tank 1 and interconnected to the tank 1 through a conducting tube 9, and a drain collecting means 13 connected to the second tank 2. Also, the drain collecting means 13 collects the drain by dewing which is produced in an air conditioner unit 14 mounted on the vehicle, and makes it flow down to the second tank.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window washer device for storing and ejecting a washer liquid used for cleaning a windshield of a vehicle.

[0002]

2. Description of the Related Art A window washer device for storing a washer liquid used for cleaning a windshield of a vehicle and ejecting the washer liquid to the windshield as necessary basically stores the washer liquid as well known. And a washer ejecting means for aspirating the washer liquid in the tank and ejecting the washer liquid into the wind glass of the vehicle from the nozzle. It is also sometimes experienced that the capacity of the tank that stores the washer fluid is not so large that the tank is emptied without even realizing it, and the dirty windshield must be driven without being washed. An automatic replenishing device disclosed in Japanese Utility Model Publication No. 1-34608, for example, solves such an inconvenience.

This automatic replenishing device is designed to collect rainwater and washer liquid used for washing, and as shown in FIG. 4, mainly includes a water receiving portion 101, a water supply hose 102, and a tank 103 with a valve body. There is. The water receiving portion 101 is configured as a channel for receiving a lower edge portion on the outside of the wind glass 104, and receives rainwater and washer liquid flowing down on the outer surface of the wind glass 104. A water supply hose 102 is connected to the lower part of the water receiving unit 101, and rainwater or washer liquid received by the water receiving unit 101 is supplied to the tank 103 by the water supply hose 102. Since the rainwater and the washer fluid after use contain dust and cannot be used as they are, the filter 10
5 is provided, and the rainwater and the washer liquid after use are replenished only when the washer liquid in the tank 103 is insufficient by the valve body 106.

[0004]

In the automatic replenishing device as described above, the water receiving portion 101 is connected to the windshield 1 concerned.
No. 04 has to be provided at the lower edge of the vehicle, and it is often necessary to change the vehicle body structure itself in relation to other constituent members of the vehicle, which is difficult to apply. Also,
The application is impossible from the beginning in a cab-over type bus or wagon vehicle that does not have a space for providing the water receiving portion 101. Further, since the filter 105, the valve body 106, etc. are required and the structure of the apparatus is complicated, the cost is high and the maintenance is troublesome.

Therefore, the present invention has been made in order to solve the above-mentioned conventional problems, and a first object thereof is to provide a window washer device having a replenishing function which can be applied regardless of the difference in vehicle body structure. is there. A second object is to provide a window washer device having a replenishing function which has a simple structure and is inexpensive. A third object is to provide a window washer device having a replenishment function with good maintainability.

[0006]

A window washer device according to the present invention for solving the above-mentioned problems is a closed first tank for storing a washer liquid, and sucks the washer liquid in the first tank, A washer ejecting means for ejecting to a windshield of a vehicle, a second tank provided adjacent to the first tank and communicating with the tank via a water conduit, and a drain recovery connected to the second tank. The drain recovery means is characterized in that the drain recovery means is configured to collect the drainage caused by the dew condensation that occurs in the air conditioner unit mounted on the vehicle and cause it to flow into the second tank.

Another window washer device according to the present invention for solving the above-mentioned problems is a closed first tank for storing a washer liquid, and a washer liquid in the first tank for sucking the washer liquid to obtain a windshield of a vehicle. A washer ejecting means for ejecting to the first tank, an open-type second tank that is attached to the first tank and communicates with the first tank via a water conduit, and a drain collecting means connected to the second tank The drain collecting means is configured to collect the drainage due to the dew condensation generated in the air conditioner unit mounted on the vehicle and to make it flow down into the second tank, and the drain collecting means has a lower portion or an upper portion of the second tank. One of these is provided with a drain outflow section for outflowing excess drain to the outside.

[0008]

In the window washer device constructed as described above, the drain caused by the dew condensation on the air conditioner unit mounted on the vehicle is collected by the drain collecting means and stored in the second tank. When the washer liquid stored in the first tank is jetted to the windshield of the vehicle by the washer jetting means, the inside of the first tank becomes negative pressure and communicates with the first tank through the water conduit. The drain stored in the second tank flows into the first tank, and water is replenished in the first tank each time the washer liquid is ejected.

In the other window washer device constructed as described above, the drainage caused by the dew condensation on the air conditioner unit mounted on the vehicle is collected by the drain collection means and flows down to be stored in the second tank. If there is a large amount of drain and surplus is generated, the surplus drain is discharged to the outside from the drain outflow part. When the washer liquid stored in the first tank is jetted onto the windshield of the vehicle by the washer jetting means, the inside of the first tank becomes a negative pressure,
The drain stored in the second tank is sent from the second tank communicating with the above tank through the water conduit to the first tank, and water is replenished in the first tank each time the washer liquid is ejected. Will be.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. This window washer device is shown in FIG.
As shown in (1), a closed first tank 1 for storing washer liquid and an open second tank 2 for storing replenishing water are provided. The first tank 1 has a replenishment port 3 on the upper part, and the replenishment port 3 can be opened to replenish the washer liquid. It is a configuration.
A washer jetting means 5 for sucking the washer liquid into the first tank 1 and jetting it to the windshield 4 of the vehicle.
Is assembled. The washer jetting means 5 is composed of a pump 6, a water guiding member 7 such as a hose or a pipe, and a jetting nozzle 8. By operating the pump 6, the first
It is possible to suck the washer liquid from the bottom of the tank 1 and to jet the washer liquid to the outer surface of the wind glass 4 from the injection nozzle 8 provided at the tip of the water guide member 7.

The second tank 2 is provided side by side with the first tank 1 and communicates with the first tank 1 via a water conduit 9 such as a hose. The water conduit 9 is for the first tank 1,
It is connected to a connection port 10 formed in the upper part of the first tank 1 in the vicinity of the supply port 3 and to the second tank 2 is connected to a connection port 11 formed in the bottom part of the second tank 2. There is. As for the upper and lower positional relationship between the second tank 2 and the first tank 1, it is preferable that the height L be substantially the same as shown in FIG.
Since the liquid level of the second tank 2 can be set near the connection port 10 of the first tank 1 or above it, it is convenient in terms of the replenishment function, but as shown in FIG. There is no particular problem even if it is placed higher than the first tank 1. The volumes of the first tank 1 and the second tank 2 may be about the same,
Since the second tank 2 is for replenishment, it may actually be smaller than the first tank, such as the tank 2 shown in FIG.

A receiving port 12 is formed in the upper part of the second tank 2, and the end of the drain collecting means 13 is connected to the receiving port 12. The drain collecting means 13 is composed of a water collecting pan 15 for collecting drainage due to dew condensation generated in the air conditioner unit 14 mounted on the vehicle, and a drain hose 16 for making the water of the water collecting pan 15 flow down. The end of the drain hose 16 is a receiving port. It is inserted into the second tank 2 from 12. A drain outflow portion 17 is provided at the end of the drain hose 16 for draining excess drain to the outside. Drain outflow section 17
Is to prevent overflow, and may be provided above the second tank 2 (see the drain outlet 17A in FIG. 3).

This embodiment is an example of application to a cab-over type vehicle such as a bus or a wagon vehicle. As shown in FIG. 1, the air conditioner unit 14 is incorporated in the front roof portion of the vehicle to The tank 1 is arranged below the front window, and the second tank 2 is arranged not far from the first tank 1 below the air conditioner unit 14.

In the window washer device having the above-mentioned structure, when the air conditioner unit 14 mounted on the vehicle is operated, the drainage due to dew condensation occurs in the air conditioner unit 14 accordingly. This drain is received by the water collecting pan 15 and is stored in the second tank 2 by gravity flow through the drain hose 16. If the second tank 2 is already full, it is drained from the drain outlet 17. In this way, the drain is stored in the second tank 2 by the drain recovery means 13 having a simple structure.

When the washer liquid previously stored in the first tank 1 is driven to appropriately eject onto the window glass 4 of the vehicle by driving the pump 6 of the washer ejection means 5, the inside of the first tank 1 becomes a negative pressure. , The connection port 10 of the first tank 1
The drain in the second tank 2 communicating with the first tank 1 through the water conduit 9 is supplied to the first tank 1 and is replenished each time. The amount of liquid ejected by the washer ejecting means 5 becomes negative pressure in the ejecting operation of the first tank 1
Since the tank 2 is open type and communicates with the first tank 1 through the water conduit 9, it does not change.

The position of the second tank 2 is almost free,
It can be applied to normal bonnet type vehicles that are not cabover types. That is, even if the air conditioner unit 14 is not in the illustrated position but in the front part of the engine room or the like, it is only necessary to allow the drain to be received by the second tank 2 and the first tank 1 to the second tank 2 It is possible to replenish the water. Further, since the second tank 2 is installed side by side with the first tank 1, the capacity of the first tank 1 itself may be smaller than before. Since the drain used for replenishment is relatively clean water that does not contain much impurities in which water in the air is agglomerated, no special filtering mechanism such as a filter is required, and the structure is simplified accordingly. In particular, it does not need a water receiving part that causes a change in the vehicle body structure itself, and does not include components that are directly related to the vehicle body structure. It can also be applied to cleaning the windshield 4. Further, the mechanism itself is simple and does not include a valve body or the like, so that it is easy to maintain and easy to use.

[0017]

As is apparent from the above description of the embodiments, according to the present invention, the drain caused by the dew condensation on the air conditioner unit mounted on the vehicle can be collected and replenished with the washer fluid, and the vehicle body structure and Since it is a structure that is not directly related, there is no hindrance to the application even if there is a difference in the vehicle body structure. Further, since drainage, which is a relatively small amount of impurities such as dew condensation, is replenished, a large filter is not required, and the entire configuration is simple, maintainability is good, and cost can be kept low.

According to another aspect of the invention, it is possible to collect the drain due to the dew condensation that occurs in the air conditioner unit mounted on the vehicle with a simple structure, and the collected drain can be replenished with the washer liquid. Further, since the structure is not directly related to the vehicle body structure, even if there is a difference in the vehicle body structure, the application is not hindered. Furthermore, since it replenishes drain, which is a relatively small amount of impurities such as dew condensation, there is no need for a large filter device, the overall configuration is simple and maintainability is low, and the cost can be kept low. It can be processed and is easy to use.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a configuration of a window washer device as an embodiment of the present invention together with a vehicle structure.

FIG. 2 is an enlarged configuration diagram showing a configuration of a window washer device according to an embodiment of the present invention.

FIG. 3 is an explanatory diagram showing a positional relationship between the first tank and the second tank of the window washer device according to the embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a configuration of a conventional automatic replenishing device for a window washer device.

[Explanation of symbols]

 1 First Tank 2 Second Tank 4 Wind Glass 5 Washer Spouting Means 9 Water Pipe 12 Receiving Port 13 Drain Collecting Means 14 Air Conditioner Unit 17 Drain Outflow Portion

Claims (2)

[Claims] 1. A closed first tank for storing washer liquid, a washer ejecting means for sucking the washer liquid in the first tank and ejecting the washer liquid to a windshield of a vehicle, and the first tank. The air conditioner unit is mounted on a vehicle, and is provided with a second tank that is installed adjacent to the tank and communicates with the same tank through a water conduit, and a drain collecting means that is connected to the second tank. 2. A window washer device, characterized in that it is configured to collect drainage caused by dew condensation that occurs in the second tank and to flow it into the second tank. 2. A closed first tank for storing washer liquid, a washer ejecting means for sucking the washer liquid in the first tank and ejecting the washer liquid to a windshield of a vehicle, and the first tank. An open-type second tank that is attached to the tank and communicates with the same tank via a water conduit, and a drain collecting means connected to the second tank,
The drain recovery means collects the drainage caused by the dew condensation generated in the air conditioner unit mounted on the vehicle and causes it to flow down into the second tank. Either of the lower part of the drain recovery means or the upper part of the second tank. A window washer device comprising a drain outflow portion for outflowing excess drain to the outside.