JPH08133020A - Vehicle - Google Patents

Abstract

PURPOSE: To drastically reduce adhesion of water drop on a glass part exposed to the outside than the conventional one. CONSTITUTION: A glass part is formed out of a water repellent glass repelling water on the outer surface in such a vehicle exposing a glass part to the outside. The glass part is supposed to be a front glass 17. It is constituted by arranging an air blow device 23 which blows out air to the outer surface of the glass part. It is constituted from a speed detection means for detecting speed of the vehicle and a control means which operates the air blow device 23, when speed detected by the speed detection means is input and the input speed is smaller than the speed prescribed beforehand.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to vehicles such as automobiles and trains, and more particularly to a vehicle having a glass portion exposed to the outside.

[0002]

2. Description of the Related Art Generally, in vehicles such as automobiles and trains, water droplets adhering to the windshield during rain are removed by a wiper.

Further, in the rear glass of automobiles, electricity is applied to the heating wire to evaporate and remove water droplets.

[0004]

However, the method of removing the water droplets with the wiper has a problem that the drainage is limited and a good visibility cannot always be obtained.

Further, in the method of applying electricity to the heating wire to evaporate and remove the water droplets, there is a problem that a lot of time is required to evaporate the water droplets. The present invention has solved the above-mentioned conventional problems, and an object of the present invention is to provide a vehicle capable of significantly reducing the adhesion of water droplets to the glass portion exposed to the outside as compared with the conventional vehicle.

[0006]

According to a first aspect of the present invention, there is provided a vehicle having a glass portion exposed to the outside, wherein the glass portion is formed of water-repellent glass that repels water on the outer surface. is there.

According to a second aspect of the present invention, in the first aspect, the glass portion is a windshield. According to a third aspect of the present invention, in the vehicle according to the first or second aspect, the vehicle has an air blowing device that blows air toward the outer surface of the glass portion.

According to a fourth aspect of the invention, in the third aspect, the speed detecting means for detecting the speed of the vehicle and the speed detected by the speed detecting means are input, and the input speed is lower than a predetermined speed. Control means for operating the air blowing device when it is small.

[0009]

In the vehicle of the first aspect, since the glass portion is formed of water-repellent glass that repels water to the outer surface, when the raindrop collides with the outer surface of the glass portion, the raindrop is reliably repelled.

In the vehicle of the second aspect, raindrops that collide with the outer surface of the windshield are reliably repelled, so that the driver's visual field is always improved. In the vehicle of the third aspect, the air is blown toward the outer surface of the glass portion by the air blowing device, and the raindrops are blown off.

In the vehicle of the fourth aspect, the air blowing device is activated when the speed detected by the speed detecting means is smaller than the predetermined speed.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show an embodiment in which the present invention is applied to a passenger vehicle, and in the drawings, reference numeral 11 indicates a vehicle body.

A tire 13 is arranged below the vehicle body 11, and a headlight 15 is arranged at the front end of the vehicle body 11. Then, the windshield 1 is provided at the center of the vehicle body 11.
7 are arranged.

In this embodiment, the windshield 17 and the cover glass 19 of the headlight 15 are made of water-repellent glass that repels water on the outer surface. This water-repellent glass is formed by forming a water-repellent film layer on the outer surface.

As a material for forming the water-repellent coating layer, for example, a product equivalent to KP801M manufactured by Shin-Etsu Chemical can be used. In front of the windshield 17, a wiper 21 and an air blowing device 23 for blowing air toward the outer surface of the windshield 17 are arranged.

The air blowing device 23 is connected to the blowing nozzle 25 arranged along the lower portion of the windshield 17, an air supply pipe 27 having one end connected to the blowing nozzle 25, and the other end of the air supply pipe 27. And a compressor 29 which is operated.

In FIG. 1, reference numeral 31 indicates a control device for controlling the operation of the compressor 29. The control device 31 is composed of a microcomputer, and as shown in FIG. 3, speed detection means 33 for detecting the speed of the vehicle.
And the speed detected by the speed detecting means 33 is input, and when the input speed is smaller than the set speed, the air blowing device 2
It has a control means 35 for operating 3 and a speed setting means 37 for setting the set speed.

The speed detecting means 33 detects the speed by a signal from a speedometer or a control microcomputer for controlling the engine. In this embodiment, as shown in FIG.
A speed setting switch 39, which is a speed setting means 37, is arranged on the front panel of the driver's seat.

The speed setting switch 39 is "OFF".
At the position, the power of the control device 31 is turned off and the operation of the control device 31 is stopped. In addition, "10", "2
At the positions "0" and "30", the boundary velocities of the vehicle on which the air blowing device 23 should be operated are 10 km and 20 K, respectively.
Set to m and 30 km.

In FIG. 4, reference numeral 41 is a handle, reference numeral 43 is a pedal, reference numeral 45 is a meter panel, and reference numeral 47 is an accessory. FIG. 5 shows a flow chart of the control device 31 described above. In this flow chart, when the speed setting switch 39 is located at a position other than “OFF”, the control device 31 is powered on and started.

Then, first, the current vehicle speed V detected by the speed detecting means 33 is fetched (step 1).
Thereafter, the speed setting means 37 is operated by the speed setting switch 39.
The set vehicle speed V ₀ set to is taken in (step 2).

Next, the current vehicle speed V and the set vehicle speed V ₀ are compared (step 3), and the current vehicle speed V is set to the set vehicle speed V.
When it is less than ₀ , the compressor 29 is activated and the air blowing device 23 is activated.

By the operation of the air blowing device 23, the compressed air from the compressor 29 is guided to the blowing nozzle 25 through the air supply pipe 27 and is directed from the blowing nozzle 25 to the windshield 17 as shown in FIG. Air A is ejected.

In the vehicle of this embodiment, the wiper 21 is separately operated by the driver according to the amount of rainfall or the like to remove raindrops. In the vehicle configured as described above, since the windshield 17 is made of water-repellent glass that repels water on the outer surface, when raindrops collide with the outer surface of the windshield 17, the raindrops are reliably repelled.
Adhesion of water droplets to the windshield 17 can be greatly reduced as compared with the conventional case, and the driver's visual field can be always kept good.

Further, the cover glass 1 of the headlight 15
Since 9 is made of water-repellent glass that repels water on the outer surface, it is possible to reduce the adhesion of water droplets to the cover glass 19, and it is possible to maintain the brightness of the headlight 15 even during rainfall.

In the vehicle described above, the air A is blown toward the outer surface of the windshield 17 by the air blowing device 23, so that raindrops can be surely blown off.

Further, in the above-mentioned vehicle, when the speed detected by the speed detecting means 33 is smaller than the predetermined speed, the air blowing device 23 is operated, so that water droplets that easily adhere to the windshield 17 at low speeds are generated. It can be reliably removed.

By knowing the operating state of the air blowing device 23, the vehicle speed can be known without looking at the speedometer. In addition, in the above-described embodiment, the example in which the present invention is applied to a passenger car has been described, but the present invention is not limited to such an embodiment, and can be applied to vehicles such as trucks and trains.

Further, by forming an antifogging layer for preventing fogging on the back surface of the windshield 17 made of water-repellent glass, the windshield 17 due to the temperature difference between the inside and outside of the vehicle.
It is possible to easily prevent the fogging of the sheet, and it is possible to more easily secure the visibility.

[0030]

As described above, in the vehicle according to the first aspect, the glass portion is formed of the water-repellent glass that repels water on the outer surface. Therefore, when raindrops collide with the outer surface of the glass portion, raindrops are generated. Since it is reliably repelled, the adhesion of water droplets to the glass portion exposed to the outside can be significantly reduced as compared with the related art.

In the vehicle of the second aspect, the raindrops that collide with the outer surface of the windshield are reliably repelled, so that the driver's visual field can always be kept good. In the vehicle of the third aspect, since the air is blown toward the outer surface of the glass portion by the air blowing device, raindrops can be surely blown off.

In the vehicle of the fourth aspect, when the speed detected by the speed detecting means is smaller than a predetermined speed, the air blowing device is operated, so that the water droplets that easily adhere to the glass portion are reliably removed at a low speed. can do.

Further, there is an advantage that the vehicle speed can be known without looking at the speedometer by knowing the operating state of the air blowing device.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a vehicle of the present invention.

FIG. 2 is a front view of FIG.

3 is a block diagram showing the control device of FIG. 1. FIG.

FIG. 4 is an explanatory diagram showing a driver's seat.

5 is a flowchart showing the operation of the control device of FIG. 1. FIG.

FIG. 6 is an explanatory diagram showing a state in which air is blown out from the air blowing device.

[Explanation of symbols]

 17 Windshield 19 Cover Glass 23 Air Blowing Device 33 Speed Detection Means 35 Control Means 37 Speed Detection Means

Claims (4)

[Claims] 1. A vehicle having a glass portion exposed to the outside, wherein the glass portion is formed of water-repellent glass that repels water to the outer surface. 2. The vehicle according to claim 1, wherein the glass portion is a windshield. 3. The vehicle according to claim 1, further comprising an air blowing device that blows air toward the outer surface of the glass portion. 4. The vehicle according to claim 3, wherein speed detection means for detecting the speed of the vehicle and speed detected by the speed detection means are input, and when the input speed is smaller than a predetermined speed. And a control unit that operates the air blowing device.