JPH04101759U - Washer tank for vehicle wipers - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] To save space and reduce costs while maintaining the water injection performance of washer fluid. [Structure] A guide partition wall 15 extending from both ends is provided inside the water injection pipe 12. An air vent passage 17 is provided inside the water injection pipe separated from a washer fluid passage 18 by the guide partition, and when water is poured, washer fluid is injected from the washer fluid passage while air in the washer tank is discharged through the air vent passage. so that

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a washer tank for vehicle wipers, and particularly to a washer tank. Improved water injection performance when the main body is located at the bottom of the car body and has a long water injection pipe. The aim is to

0002

[Conventional technology]

Traditionally, washers have been used to store washer fluid for wipers on vehicles such as automobiles. Due to the overcrowding in the engine compartment, the tank is being placed in the lower part of the body, such as under the fender. Increasingly, the number of cases where This type of washer tank requires injecting washer fluid from the engine compartment. As shown in Figure 3, connect the water injection pipe (funnel) 2 from the tank body 1 so that Inject washer fluid from the water inlet 3 that protrudes and opens at the upper end 2a of the water inlet pipe 2. It is configured to do this.

0003 Since the water injection pipe 2 has a somewhat long length L1, in the production line, Alternatively, when the washer fluid is injected from the above inlet 3 during use by the user, the tank There is no place for air to escape inside the main body 1, and the washer fluid gets clogged inside the water injection pipe 2. The washer fluid may overflow from the water inlet 3. In particular, the washer Since the liquid has a certain degree of viscosity, the water injection pipe 2 is easily clogged, and the above situation may occur. is likely to occur.

0004 Therefore, the tank body 1 and the vicinity of the upper end 2a of the water injection pipe 2 are connected to the air vent hose 5. When the washer fluid flows into the tank body 1, the inside of the washer tank The air is discharged to the outside through an air vent hose 5 as shown by arrow A. It is said that

[0005]

[Problem that the idea aims to solve] However, in the above washer tank, the air vent hose 5 is bent. If the washer fluid is injected, there will be no place for the air to escape when filling the washer fluid. It is necessary to provide sufficient space on the vehicle side to place the air vent hose 5. be. In addition, as mentioned above, the water injection pipe 2 and the air vent hose 5 are separate members, so The number of separate parts increases, and there are also problems in terms of cost, etc.

[0006] The purpose of this invention is to replace the conventional washer tank for vehicle wipers as described above. This was done to solve the problem of washer fluid overflowing during injection. The air vent passage is formed integrally with the injection pipe to save space and cost. This was done with the aim of reducing

[0007]

[Means to solve the problem]

Therefore, the present invention has a tank body disposed at the lower part of the vehicle body and a tank body arranged above the tank body. A washer tank for a vehicle equipped with a long water injection pipe protruding toward the water injection tank. The pipe has a guide partition inside that extends from one end on the top opening side to the other end on the tank body side. The guide bulkhead allows an air vent passage with a small cross-sectional area to be created inside the water injection pipe. A washer tun for a vehicle wiper, characterized in that it is provided separately from a liquid passage. The purpose is to provide

[0008] The guide partition wall has, for example, a substantially V-shaped cross section, and the acute corner of the V-shape is the air passage. The obtuse angle portion constitutes a washer fluid passage. Further, preferably, the water injection pipe is formed by injection molding.

[0009]

[Effect]

The vehicle wiper washer tank according to the present invention has the above structure. As the washer fluid flows into the tank body through the washer fluid passage, Then, the air inside the tank body is exhausted to the outside through the air vent passage, and the air is discharged to the outside through the air vent passage. This prevents washer fluid from clogging in the washer fluid passage and overflowing from the water supply pipe. This allows for smooth injection.

0010

【Example】

Next, the present invention will be described in detail based on embodiments shown in the drawings. As shown in FIGS. 1 and 2, a washer tank for a vehicle wiper according to the present invention Reference numeral 10 indicates a tank body 11 placed at the bottom of the vehicle body (not shown), and the tank body 11. The tank body 11 includes a straight water injection pipe 12 projecting upward from the upper surface portion 11a. The washer fluid accumulated inside the washer is pumped to the wiper side by a washer pump (not shown). The structure is such that it is supplied to

[0011] The water injection pipe 12 is integrally molded by injection molding, and is The end portion 12a communicates with the washer tank body 11, while the upper end portion 12b is opened and closed. An opening 14 is provided which is closed by a flexible plug member 13. Further, the water injection pipe 12 has an upper end 12b suitable for injecting washer fluid. (In this example, inside the engine room) It has a length L2.

0012 The water injection pipe 12 has a cylindrical shape, and has a substantially V-shaped cross section that protrudes from the inner peripheral portion 12c toward the hollow portion. A shaped guide partition wall 15 is integrally provided from the upper end 12b side to the lower end 12a. child 1/4 in the circumferential direction surrounded by the V-shaped acute angle part and the outer peripheral wall 12d by the guide partition wall 15. The part that occupies a large area is the air vent passage 17 with a small cross-sectional area, and the V-shaped part of the guide bulkhead 15 is The part surrounded by the obtuse angle part and the outer peripheral wall 12d, that is, the remaining 3/4 part in the circumferential direction is defined as a washer fluid passage 18.

[0013] In this embodiment, the water injection pipe 12 is formed by injection molding as described above. Since the guide bulkhead 15 is integrally molded, a separate member can be attached as an air vent passage. There's no need to.

[0014] The washer tank according to the present invention can be used on the production line or when used by the user. When injecting washer fluid during use, open the plug member 13 and move in the direction of arrow B. As shown, washer fluid is injected into washer fluid passage 18 through opening 14 . At this time, the air in the washer tank 10 causes the washer fluid to flow into the tank body 11. As it flows in, it is pushed out by the washer fluid, and air is vented as shown by arrow C. It is discharged to the outside through the passage 17. Therefore, in this embodiment, from the water injection pipe 12 This prevents washer fluid from overflowing and allows for smooth injection.

[0015] If the cross-sectional area of the air vent passage 17 is set to a value greater than the required value, it will cause some viscosity. When the washer fluid flows into the tank body 11, it bounces back and drains the air vent passage. Even if the air adheres to the opening on the tank body 11 side of 17, the air vent passage 17 There is no chance of the valve becoming blocked by liquid.

[0016] The present invention is not limited to the embodiments described above, and various modifications are possible. be. For example, the guide partition wall may have a cross-sectional shape other than the V-shape. Additionally, the ratio of the air vent passage to the washer fluid passage is limited to the example above. It is possible to change it as appropriate depending on the viscosity of the washer fluid used. It is. Furthermore, this invention is applicable not only to washer tanks for vehicle wipers, but also to radiator tanks. It is also possible to apply it to a servo tank, etc.

[0017]

【effect】

As is clear from the above explanation, the vehicle wiper washer tun according to the present invention In the tank, the water inlet pipe is internally connected from one end of the water inlet pipe on the upper opening side to the tank body side. Equipped with a guide bulkhead extending to the other end, the guide bulkhead allows air to be removed from the inside of the water injection pipe. The washer fluid passage is separated from the washer fluid passage. When the tank liquid is injected, the air inside the tank body will be exhausted to the outside through the air vent passage. This prevents the washer fluid passage from clogging and overflowing the washer fluid. can.

[0018] Also, instead of providing the air vent passage as a separate member as mentioned above, the water injection pipe is It is provided by partitioning with guide bulkheads and can be bent like an air vent hose. Since it does not bend, there is no need to provide special space on the vehicle side, saving space. can be done.

[0019] Furthermore, the present invention does not make the air vent passage a separate member from the water injection pipe as described above. Therefore, the number of parts can be reduced, reducing the assembly process and reducing costs. It has various advantages such as being able to reduce

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing an embodiment of a washer tank for a vehicle wiper according to the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG. 1.

FIG. 3 is a schematic diagram showing a conventional washer tank for vehicle wipers.

[Explanation of symbols]

11 Tank body 12 Water injection pipe 13 Plug member 14 Opening 15 Guide bulkhead 17 Air vent liquid passage 18 Washer fluid passage

──────────────────────────────────────────────── ─── Continuation of front page (72) Creator Katsura Yorizane Mazda, 3-1 Shinchi, Fuchu-cho, Aki-gun, Hiroshima Prefecture Inside the corporation

Claims (1)

[Scope of utility model registration request] 1. A washer tank for a vehicle wiper, comprising a tank main body disposed at the lower part of the vehicle body and a long water injection pipe protruding upward from the tank main body, the water injection pipe having an upper end opening side inside. A washer tank for a vehicle wiper, comprising a guide partition extending from one end to the other end on the side of the tank body, the guide partition providing an air vent passage inside a water injection pipe separated from a washer fluid passage. .