JP2012224141A - Inlet structure for washer tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inlet structure for a washer tank allowing the replenishing work of washer liquid to be performed without problems even if inserting the water filling nozzle of a replenishing vessel deeply into an inlet.SOLUTION: A partial outer fitting part 11 is formed as an interval forming means forming an interval 10 between the water filling nozzle 7 and the inlet 4 when inserting the water filling nozzle 7 of the replenishing vessel of the washer liquid 6 into the deepest part of the inlet 4 for injecting the washer liquid 6 into the washer tank.

Description

  The present invention relates to an inlet structure for a washer tank.

  There are various types of car washer tanks, but in a cab-over type truck or the like, as shown in FIGS. 9 and 10, a water injection port 2 is formed on the side surface of the instrument panel 1 that appears when the front door is opened. The water inlet 2 is closed with a cap 3, and the washer liquid 6 is replenished to the washer tank 5 through an inlet 4 which gradually tapers downward from the water inlet 2 obliquely downward. is there.

  The inlet portion 5 a of the washer tank 5 rises in a duct shape from the upper portion of the tank and is connected to the deepest portion of the inlet 4. All of the washer liquid 6 poured into the inlet 4 is guided to the washer tank 5. It is like that.

  Normally, when a user requests refilling of the washer liquid 6 at a dealer or a gas station, a mug type refill container 8 (see FIG. 10) having a water injection nozzle 7 is used in these facilities. The water injection nozzle 7 of the container 8 is inserted into the inlet 4 by opening the cap 3 of the water injection port 2, and the replenishment container 8 is tilted so that the washer liquid 6 is poured into the washer tank 5.

  As prior art document information related to this type of washer tank, there is Patent Document 1 below.

JP-A-7-35214

  However, since the water injection nozzle 7 of the general replenishing container 8 is formed so as to have a tapered circular tube shape, when the water injection nozzle 7 is inserted deep into the inlet 4, the water injection nozzle is formed at the deepest portion of the inlet 4. 7 fits into the minimum cross-sectional portion 9 of the inlet 4 without a gap, and it is difficult for the air in the washer tank 5 to escape and the water injection speed of the washer liquid 6 may become slow.

  There is no particular problem if the water injection nozzle 7 is not inserted deeply into the inlet 4. However, it is troublesome to replenish the washer liquid 6 while taking such care, and the washer liquid 6 was vigorously added. In this case, the washer liquid 6 tends to flow backward to the water inlet 2 side.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an inlet structure for a washer tank capable of performing a replenishment operation of a washer liquid without any trouble even if a water injection nozzle of a replenishing container is inserted to the depth of the inlet. .

  The present invention provides a gap forming means for forming a gap between the water injection nozzle and the inlet when the water injection nozzle of the washer liquid replenishing container is inserted into the deepest part of the inlet for pouring the washer liquid into the washer tank. The present invention relates to an inlet structure for a washer tank.

  Thus, in this way, when the water injection nozzle of the refill container is inserted into the inlet, a gap is formed between the water injection nozzle and the inlet by the gap forming means, and the air escape path in the washer tank is formed. Therefore, the situation where the water injection speed of the washer liquid is slowed is avoided.

  Moreover, since it is not necessary to worry about inserting the water injection nozzle all the way into the inlet, there is no need to worry about refilling the washer liquid, and there is a risk that the washer liquid will flow back to the water inlet side even if the washer liquid is vigorously added. This is less.

  Further, in the present invention, the gap forming means includes a partial outer fitting portion that partially fits and contacts the outer periphery of the water injection nozzle of the replenishing container at the deepest cross section at the deepest portion of the inlet to secure a gap around the water injection nozzle. Furthermore, an interference portion that partially interferes with the tip of the water injection nozzle of the refill container and prevents the water injection nozzle from being inserted into the minimum cross section before the minimum cross section at the deepest portion of the inlet. May be formed as a gap forming means.

  Further, in the present invention, it is also possible to form a wall portion that dams back flow of the washer liquid under the inlet water inlet, and in this way, the water injection nozzle is excessively charged with the washer liquid. Even if a slight backflow occurs from the gap between the inlet and the inlet, the backflow of the washer liquid is blocked by the wall at the inlet water inlet.

  According to the inlet structure for a washer tank of the present invention described above, various excellent effects as described below can be obtained.

  (I) According to the first, second, and third aspects of the present invention, a gap is formed between the water injection nozzle and the inlet by the gap forming means even if the water injection nozzle of the replenishing container is inserted deep into the inlet. Since the air escape path in the washer tank can be secured, the washer fluid can be quickly applied without causing a decrease in the water injection speed, and the water injection nozzle does not need to be inserted deep into the inlet. Therefore, it is possible to eliminate the troublesome work during the replenishment operation of the washer liquid, and it is possible to greatly reduce the possibility that the washer liquid flows backward to the water inlet side even if the washer liquid is vigorously added.

  (II) According to the invention described in claim 4 of the present invention, even if the washer liquid is excessively poured and a slight backflow is generated from the gap between the water injection nozzle and the inlet, The backflow of the washer liquid can be blocked by the portion, and the situation where the washer liquid overflows from the water inlet can be reliably prevented.

It is sectional drawing which shows the example of 1st form of this invention. It is sectional drawing of the II-II arrow of FIG. It is sectional drawing which shows the 2nd form example of this invention. It is sectional drawing which shows the 3rd form example of this invention. It is sectional drawing which shows the 4th example of a form of this invention. It is sectional drawing which shows the 5th example of a form of this invention. It is sectional drawing which shows the 6th form example of this invention. It is sectional drawing of the VIII-VIII arrow of FIG. It is a perspective view which shows an example of the water inlet of a washer liquid. It is the schematic explaining an example of the conventional structure.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 and FIG. 2 show an example of an embodiment for carrying out the present invention, and portions denoted by the same reference numerals as those in FIG. 9 and FIG.

  In the first embodiment of the present invention shown in FIGS. 1 and 2, a replenishment container 8 (FIG. 10) of the washer liquid 6 is provided at the deepest portion of the inlet 4 for pouring the washer liquid 6 into the washer tank 5 (see FIG. 10). The partial external fitting portion 11 is formed as a gap forming means for forming a gap 10 between the water injection nozzle 7 and the inlet 4 when the water injection nozzle 7 is inserted.

  Here, in the case of the example shown in FIGS. 1 and 2, a partial outer fitting portion 11 is formed in a protruding shape at one place in the circumferential direction of the minimum cross-sectional portion 9 of the inlet 4. A structure in which a wall portion 12 for newly blocking the backflow of the washer liquid 6 is newly formed below the water injection port 2 is employed.

  When the diameter of the water injection nozzle 7 of the refill container 8 is about 20 to 30 mm, a gap 10 of about 0.5 to 5 mm is formed between the water injection nozzle 7 and the inlet 4. Moreover, it is preferable that the wall part 12 which blocks the backflow of the washer liquid 6 has a height dimension h of 10 mm or more from a point on the bottom surface inside the inlet 4 which is 10 mm deeper than the water injection port 2.

  Thus, when the partial outer fitting portion 11 is formed in the deepest portion of the inlet 4 in this way, when the water injection nozzle 7 of the replenishing container 8 is inserted to the depth of the inlet 4, the partial outer fitting portion 11 is Since the outer periphery of the water injection nozzle 7 is partially fitted and abutted, a gap 10 is formed around the water injection nozzle 7 and an air escape path in the washer tank 5 is secured, so that the water injection speed of the washer liquid 6 is reduced. Is avoided in advance.

  In addition, since it is not necessary to take care not to insert the water injection nozzle 7 all the way into the inlet 4, troublesome work during the replenishment of the washer liquid 6 is eliminated, and the washer liquid 6 can be injected even if the washer liquid 6 is vigorously added. The possibility of backflowing to the 2 side is reduced.

  In addition, since the wall portion 12 that blocks the backflow of the washer liquid 6 is formed below the water inlet 2 of the inlet 4, the washer liquid 6 is excessively put in between the water inlet nozzle 7 and the inlet 4. Even if a slight backflow occurs from the gap 10, the backflow of the washer liquid 6 is blocked by the wall portion 12 at the water inlet 2 of the inlet 4.

  Therefore, according to the first embodiment, even when the water injection nozzle 7 of the replenishing container 8 is inserted to the depth of the inlet 4, the gap 10 is formed between the water injection nozzle 7 and the inlet 4 by the partial outer fitting portion 11. Since the air escape path in the washer tank 5 can be secured, the washer liquid 6 can be quickly performed without causing a decrease in the water injection speed, and the water injection nozzle 7 should not be inserted all the way into the inlet 4. By not having to worry about it, it is possible to eliminate the troublesome work during the replenishment of the washer liquid 6, and greatly reduce the possibility that the washer liquid 6 will flow back to the water inlet 2 side even if the washer liquid 6 is vigorously inserted. be able to.

  Further, even if the washer liquid 6 is excessively poured and a slight backflow is generated from the gap 10 between the water injection nozzle 7 and the inlet 4, the wall 12 causes the backflow of the washer liquid 6 at the water inlet 2 of the inlet 4. The dam can be stopped and the situation where the washer liquid 6 overflows from the water inlet 2 can be reliably prevented.

  In addition, when the user purchases the washer liquid 6 at an auto parts store or the like and performs the refilling work by himself / herself, there is a case where the washer liquid 6 is poured into the inlet 4 with a bottle-type replenishment container 8 without the water injection nozzle 7. Even in such a case, if the wall 12 is formed below the water inlet 2 of the inlet 4, it is convenient that the washer liquid 6 can be replenished with confidence.

  Further, in the first embodiment described above, the partial outer fitting portion 11 is formed in a protruding shape at one place in the circumferential direction of the minimum cross section 9 of the inlet 4, but as shown in the second embodiment in FIG. The partial outer fitting portions 11 may be formed in a projecting shape at a plurality of circumferential locations (three locations in the figure). Furthermore, as shown in the third embodiment in FIG. It is also possible to form the groove portion 13 in the groove 13 and use the minimum cross-sectional portion 9 remaining between the groove portions 13 as a partial outer fitting portion to make the groove portion 13 itself a gap.

  Further, as shown in FIG. 5, the minimum cross section 9 at the deepest portion of the inlet 4 has an elliptical cross section as shown in FIG. 5, or the minimum cross section 9 is formed into an oval shape as shown in FIG. Even in such a case, a part of the smallest cross-sectional portion 9 is partially fitted around the outer periphery of the water injection nozzle 7 as a partial outer fitting portion, and around the water injection nozzle 7. The gap 10 can be secured.

  Further, as shown in FIGS. 7 and 8, the water injection nozzle 7 is partially interfered with the tip of the water injection nozzle 7 of the replenishing container 8 before the minimum cross section 9 in the deepest portion of the inlet 4 as shown in the sixth embodiment. It is also possible to form the interference portion 14 that prevents insertion into the minimum cross-sectional portion 9 as a gap forming means.

  In this way, when the water injection nozzle 7 of the replenishing container 8 is inserted all the way into the inlet 4, the interference portion 14 partially interferes with the tip of the water injection nozzle 7 and the minimum cross-sectional portion of the water injection nozzle 7. 9 is blocked, and a gap 10 is formed between the water injection nozzle 7 and the inlet 4 to secure an air escape path in the washer tank 5, so that the water injection speed of the washer liquid 6 becomes slow. It can be avoided in advance, and the same effects as those of the embodiment shown in FIGS. 1 and 2 can be obtained.

  The inlet structure for a washer tank according to the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the gist of the present invention.

2 Water injection port 4 Inlet 5 Washer tank 6 Washer liquid 7 Water injection nozzle 8 Refilling container 9 Minimum cross section 10 Gap 11 Partial fitting part (gap forming means)
12 Wall part 13 Groove part 14 Interference part (gap formation means)

Claims (4)

  A gap forming means for forming a gap between the water injection nozzle and the inlet when the water injection nozzle of the replenishment container for the washer liquid is inserted into the deepest portion of the inlet for pouring the washer liquid into the washer tank. Characteristic inlet structure for washer tank.   A partial outer fitting portion is formed as a gap forming means in the smallest cross section at the deepest portion of the inlet, and a partial outer fitting portion is provided that partially fits and contacts the outer periphery of the water injection nozzle of the replenishing container to secure a gap around the water injection nozzle. The inlet structure for a washer tank according to claim 1.   Before the minimum cross section at the deepest part of the inlet, an interference portion that partially interferes with the tip of the water injection nozzle of the refill container and prevents insertion of the water injection nozzle into the minimum cross section is formed as a gap forming means. The inlet structure for a washer tank according to claim 1.   4. The inlet structure for a washer tank according to claim 1, wherein a wall portion for blocking back flow of the washer liquid is formed below the inlet water inlet.

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