JP2557768B2 - Washer liquid injection method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for injecting a windshield washer liquid, and more particularly to a method for injecting a washer liquid for improving the wiping property when wiping a wind glass with a washer liquid in a high speed running state of a vehicle. .

[0002]

2. Description of the Related Art Conventionally, a windshield washer liquid has been used for cleaning dirt on windshield glass. This windshield washer liquid is equipped with a washer tank, a washer pump, a nozzle, and piping such as a tube connecting these elements. The number of injection ports was determined as desired by the glass area of the windshield glass, the washer liquid ejection pressure, the nozzle position, and the like.

For example, according to the example shown in FIGS. 5 and 6,
In this example, the number of nozzles and the number of ejection ports are both two. According to this example, the nozzles 51 and 52 are arranged on the base end side of the wiper blade 53, respectively, and the landing points 54a, 54b, 55a and 55b of the washer liquid are
As shown in FIG. 5, for example, the stationary state of the vehicle (0 km
/ H) or a normal running state (60 km / h), the wiping range A on the driver side and the wiping range B on the passenger side are 150 from the respective upper ends.
It is a position of about 5 mm and about 5 mm from the lower end, is raised from this landing point 54a, 54b, 55a, 55b and is located in the region 56a, 56b, 57a, 57b, and is wiped by the swing motion of the wiper blade 53. The washer liquid spreads over A and B as a whole, and sufficient wiping is possible. Reference numeral 50 is a front windshield glass.

However, when the vehicle is traveling at a high speed (200 km / h or the like) beyond the normal traveling state, as shown in FIG. 6, the influence of wind pressure or the like becomes larger than the jet pressure of the washer liquid, and the landing point is reached. Becomes gradually closer to the injection ports (not shown) of the nozzles 51 and 52, and the above-mentioned landing point 54
a, 54b, 55a, 55b are no longer reached, and water is landed at the landing points 58a, 58b, 59a, 59b indicated by X, and the areas 60a, 58a, 58b, 59a, 59b rise up. The washer liquid is located only at the portions 60b, 61a, 61b.

Therefore, even when the wiper blade 53 swings, the washer liquid wipes only the base end side of the wiper blade 53, and the washer liquid does not reach the shaded area in FIG. 6 and cannot be wiped. In particular, in the wiping range A on the driver side, the influence of wind pressure or the like is remarkable, and the washer liquid flows to the side end portion (left side in FIG. 6) of the front windshield glass 50, which causes a disadvantage that it cannot be wiped at all.

An object of the present invention is to provide a method for injecting a washer liquid so that the washer liquid spreads over the wiping range of the wiper blade not only in a stationary state or a normal traveling state but also in a high speed traveling state. is there.

[0007]

A method for injecting a washer fluid according to the present invention is a wiping range of a driver side wiper blade in a high-speed running state, wherein the tip side and the rear edge of the wiper blade are at least at a lower inverted position of the wiper blade. It is characterized in that the washer liquid is jetted to the window position on the side so that the washer liquid may come into contact with the water.

[0008]

According to the present invention, the washer liquid lands in the wiping range of the driver-side wiper blade in a high-speed running state, at least at the leading and trailing window positions of the wiper blade at the lower inverted position of the wiper blade. Since the washer liquid was jetted in this way, even when the washer liquid's landing point was extremely close to the wiper blade's wiping range due to wind pressure, etc., at the high-speed running state, the jetted washer liquid was ejected. When the wiper blade reaches the front and rear end positions of the wiper blade and the wiper blade moves from the lower reversal position to the upper reversal position, it moves with the washer liquid and the washer liquid spreads over the entire wiper blade. The whole can be washed with a washer fluid.

[0009]

An embodiment of the present invention will be described below with reference to the drawings. The members, arrangements, and the like described below do not limit the present invention and can be variously modified within the scope of the gist of the present invention.

FIG. 1 is an explanatory view showing a first embodiment of the present invention. Reference numeral 1 indicates a front windshield glass as a window, reference numerals 2 and 3 indicate wiper blades, and a windshield washer device is a conventional one. As is well known, it is provided with a washer tank, a washer pump, a nozzle, and piping by means of a tube connecting these elements (all of which are not shown). The symbol A indicates the wiping range on the driver side by the wiper blade 2, and the symbol B indicates the wiping range on the passenger side by the wiper blade 3. Further, reference numerals 4 and 5 represent washer nozzles, and the washer nozzles 4 and 5 of this example are formed at two positions at predetermined intervals at the center position of the vehicle body.

The nozzle 4 of this embodiment is formed near the base end position of the wiper blade 2 when the wiper blade 2 on the driver side is in the downward reversal position, and is located about 5 mm from the lower end of the wiping range A on the driver side. One injection port (not shown) is formed toward the position and near the center of the wiping range.

The nozzle 5 of this example is formed near the tip end side of the wiper blade 2 when the driver side wiper blade 2 is in the downward reversal position.
There are three injection ports, that is, the wiping range A on the driver side.
And a jet side (not shown) directed from the upper end of each of the passenger side wiping range B to around 150 mm, and an jet port (not shown) directed to a position about 5 mm from the lower end of the passenger side wiping range wiping range B ) And are formed.

Explaining the relationship between the washer fluid and the wiper blades 2 and 3 having the above-mentioned structure, when the vehicle does not move, that is, in a so-called stationary state or in a normal running state,
The washer liquid sprayed from the nozzle 4 is sprayed toward the landing point 11 in the wiping range A on the driver side, and the washer liquid is located in the region 11a in the wiping range A of the front windshield glass 1 due to wind pressure or the like.

At this time, the washer liquid is sprayed from the three nozzles 5 at this time, but is sprayed from one nozzle toward the landing point 12 about 150 mm from the upper end of the wiping range A on the driver side. The washer fluid is located in the area 12a within the wiping range A of the front windshield glass 1 due to wind pressure or the like. At the same time, the other two of the nozzles 5 are located at the upper end of the wiping range B on the passenger side.
The water is sprayed toward the landing points 13 and 14 at positions of about 50 mm and about 5 mm from the lower end, and is further sprayed, and the washer liquid is blown to the regions 13a and 14a within the wiping range B of the front windshield glass 1. Located in. Therefore, when the vehicle is in a stationary state or in a normal running state, it is possible to wash the dirt in the wiping ranges A and B of the front windshield glass 1 with the washer liquid as in the prior art.

Further, as the vehicle speed increases from the normal running state, it is affected by wind pressure, etc.
Although the nozzles 12, 13 and 14 move to the nozzles 4 and 5, the nozzle 4 is formed near the base end position of the wiper blade 2 when the wiper blade 2 on the driver side is in the downward reversal position. Since the injection port is formed at a position approximately 5 mm from the lower end of the wiping range A on the driver side and near the approximate center of the wiping range, the landing point 11 moves to the nozzle side and the wiper blade 2 The water is sprayed to the water landing point 11b in the wiping range A on the base end side, and the washer liquid is positioned in the region 11c, and the washer liquid moves in the wiping range A and is cleaned together with the wiper blade 2.

When the wiper blade 2 on the driver side is in the downward reversal position, the nozzle 5 is located near the tip end side of the wiper blade 2 on the driver side, and
Is formed from the upper end of the wiping range A on the driver side to about 150 mm, and even if the water landing point 12 moves to the nozzle 5 side, the water landing point 12b in the wiping range A on the tip side of the wiper blade 2 Thus, the washer liquid is positioned in the area 12c by being sprayed to the area 12c, and the washer liquid moves with the wiper blade 2 in the wiping range A and is cleaned.

On the other hand, in the wiping range B on the passenger side, 15 nozzles from the upper end of the wiping range B on the passenger side from the two injection ports of the nozzle 5 toward the passenger side.
It is injected around 0 mm and around 5 mm from the lower end, but the water contact points 13 and 14 become shorter due to wind pressure and move toward the nozzle 5 side to reach the water contact points 13b and 14b. Even when located at 13c and 14c, the washer fluid is moved by the wind pressure or the like as shown by the arrow in FIG. 1 to reach the area within the wiping range B of the front windshield glass 1.

As described above, in this embodiment, the vehicle is in a stationary state, a normal traveling state, a high-speed traveling state, and an ultra-high-speed state in which the washer liquid is sprayed only in the wiping ranges A and B (marked with X in FIG. 1). Landing points 11b, 12b,
In the case of only 13b and 14b), the front windshield glass 1 can be sufficiently washed with the washer liquid.

FIG. 2 is an explanatory view showing a second embodiment of the present invention. In this embodiment, the same elements as those of the first embodiment are designated by the same reference numerals and the description thereof will be omitted. In the first embodiment, an example using two washer nozzles was shown, but this example shows an example using four washer nozzles. That is, in the present example, the wiper range A on the driver side is the wiper blade 2, and the washer nozzles 21 and 22 are formed on the base end side position of the wiper blade 2 at the lower inverted position and the tip end side position of the vehicle body. B, the washer nozzles 23 and 24 are provided at the base end side position of the wiper blade 3 at the lower reversal position and at the tip end side position of the vehicle body.

The nozzles 21 provided at the base end side positions of the wiper blades 2 and 3 at the lower reversal position, respectively.
23 is a position about 5 mm from the lower end of the wiping ranges A and B, and an injection port (not shown) is formed toward the landing points 11 and 13 in the vicinity of the approximate center of the wiping range. The nozzles 22 and 24 in the lower inverted position of
An injection port (not shown) is formed toward the water landing points 12 and 14 at a position approximately 150 mm from the upper end of the wiping areas A and B.

Even with the construction of this embodiment, as in the case of the first embodiment, the vehicle is in a stationary state, a normal traveling state, a high-speed traveling state, and further, the washer liquid is wiped only in the wiping ranges A and B. Ultra-high-speed running state where the fuel is not injected (X in Fig. 2
Even in the case of landing points 11b, 12b, 13b, 14b indicated by marks), the front windshield glass 1 can be sufficiently washed with the washer liquid.

FIG. 3 is an explanatory view showing a third embodiment of the present invention. Also in this example, the same elements as those in the first and second embodiments are designated by the same reference numerals, and the description thereof will be omitted. The wiper blades 2 and 3 of this example are those in which the wiping ranges A and B are opposed to each other and overlap each other in the central portion of the front windshield glass. In this example, the nozzle 31 formed on the base end side of the lower reversal position of the wiper blade 2 in the wiping range A on the driver side has a position about 5 mm from the lower end in the wiping range A on the driver side and near the center of the wiping range. 2 of an injection port (not shown) toward the water landing point 11 of No. 2 and an injection port toward a water landing point 13 of about 150 mm from the upper end in the wiping range B on the passenger side and near the center of the wiping range. Two injection ports (neither is shown) are formed.

Further, in the wiping range B on the passenger side, the nozzle 32 formed on the base end side of the lower reversal position of the wiper blade 3 is 150 m from the upper end in the wiping range A on the driver side.
Landing point 12 around m and near the center of the wiping range
2 of an injection port (not shown) directed to the water and an injection port (not shown) directed to the landing point 14 at a position of about 5 mm from the lower end in the wiping range B on the passenger side and near the center of the wiping range. Two jets are formed.

Even in the case of the construction of this embodiment, similarly to the first and second embodiments, the vehicle is in a stationary state, a normal traveling state, a high-speed traveling state, and further, the washer liquid is wiped to the margins A and B. Even in an ultra-high-speed traveling state in which only the injection is performed, the front windshield glass 1 can be sufficiently washed with the washer liquid.

FIG. 4 is an explanatory view showing a fourth embodiment of the present invention. Also in this example, the same elements as those in the first, second and third embodiments are designated by the same reference numerals and the description thereof will be omitted.
In this example, in the nozzle 41 formed on the base end side of the wiper blade 2 in the lower reversal position in the wiping range A on the driver side, the nozzle 41 is located about 5 mm from the lower end in the wiping range A on the driver side and substantially in the center of the wiping range. A jet port toward a landing point 11 in the vicinity, a jet port toward a landing point 12 at a position about 150 mm from the upper end in the wiping range A on the driver side and near the center of the wiping range, and a passenger side wiping In the range B, three injection ports (none of which are shown) are formed at a position about 5 mm from the lower end and toward the water landing point 13 near the center of the wiping range.

Further, in the wiping range B on the passenger side, the nozzle 42 formed on the base end side of the lower reversal position of the wiper blade 3 has a range of 15 from the upper end in the wiping range B on the passenger side.
An injection port (not shown) is formed at a position of about 0 mm and near the center of the wiping range toward the landing point 14, and further in the wiping range B on the passenger side, on the tip side of the lower reversal position of the wiper blade 3. In the formed nozzle 43, an injection port (not shown) is formed at a position about 150 mm from the upper end in the wiping range B on the passenger side and from approximately the center of the wiping range to the landing point 15 near the lower side. There is.

In the case of the construction of this example, in the high-speed traveling state, of the injection ports formed in the nozzle 41 on the base end side of the wiper blade 2 in the lower reversal position in the wiping range A on the driver side, the passenger side 5 from the bottom in the wiping range B
Landing point 1 at a position around mm and near the center of the wiping range 1
The washer liquid jetted from the jet port toward 3 does not reach the landing point 13, but the washer liquid from this jet land on the tip end side of the driver side wiper blade 2 at the downward reversal position. (Indicated by reference numeral 16), whereby the washer liquid can clean the wiping range A on the driver side together with the wiper blade 2.

In this example, as for the wiper range B on the passenger side, the washer liquid from the jet port of the nozzle 42 formed at the base end side of the lower reversal position of the wiper blade 3 in the wiper range B on the passenger side is The wiper blade 3 is exposed to water on the base end side and wiped on the passenger side B
The washer liquid from the injection port of the nozzle 43 formed on the tip side of the wiper blade 3 at the lower reversal position lands on the tip side of the wiper blade 3 to sufficiently wash the front windshield glass 1 on the passenger side. It becomes possible.

[0029]

As described above, according to the present invention, the wiping range of the driver-side wiper blade in the high-speed running state is at least at the window positions of the tip end side and the rear end side of the wiper blade at the lower reversal position of the wiper blade. Since the washer liquid was jetted so that the washer liquid would land, the washer liquid was jetted and landed on the front end side and the rear end side position of the wiper blade in the high-speed running state. When moving to the upper reversal position side, it moves together with the washer liquid and spreads over the entire wiper blade, and the entire wiping range can be washed with the washer liquid. Therefore, the entire wiping range on both the passenger side and the driver side can be washed regardless of the state of the vehicle such as the stationary state, the normal traveling state, the high-speed traveling state, and the like.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a first embodiment of the present invention.

FIG. 3 is an explanatory diagram showing a first embodiment of the present invention.

FIG. 4 is an explanatory diagram showing a first embodiment of the present invention.

FIG. 5 is an explanatory diagram showing a conventional example.

FIG. 6 is an explanatory diagram showing a conventional example.

[Explanation of symbols]

1 window (front windshield glass) 2 driver side wiper blade 3 passenger side wiper blade 4, 5, 21, 22, 23, 24, 31, 32, 41,
42,43 Nozzle 11,12,13,14,15 Water contact point A Driver side wiping range B Passenger side wiping range

Claims (1)

(57) [Claims] 1. A washer liquid is wiped on a driver side wiper blade in a high-speed running state so that the washer liquid is allowed to land at least at the front and rear window positions of the wiper blade at the lower reversal position of the wiper blade. A method for ejecting washer fluid, which comprises ejecting washer fluid.