JP2003191826A - Washer tank assembly - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a washer tank assembly used with one kind of tanks regardless of necessity or un-necessity of inlet pipe connection. <P>SOLUTION: A connection rubber 11 comprises an annually formed inner wall 11a and an outer wall 11b. The inner peripheral surface of the inner wall 11a of the connection rubber 11 is provided with a first seal part 12 projecting toward the radial inside. The first seal part 12 projects in a projecting round shape. The projecting amount of the first seal part 12 is determined so that the diameter is larger than that of an insert part 9a. The outer peripheral surface of the inner wall 11a of the connection rubber 11 is provided with a second seal part 13 projecting toward the radial outside. The second seal part 13 is formed at a position radially corresponding to the first seal part 12. The second seal part 13 is formed of a projecting part having a triangular cross section. The second seal part 13 is formed so that the diameter is larger than that of a first reserve port 3. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a washer tank assembly.

[0002]

2. Description of the Related Art Conventionally, a tank which is applied to a washer device for a vehicle and which stores a liquid is arranged in a small space such as an engine room of a vehicle where a large number of parts are arranged in a narrow space. Each is different. However, it is preferable that the liquid injection port is arranged in the upper part so that the liquid injection work can be easily performed in the maintenance. Therefore, when the tank is arranged in the lower part of the vehicle, the long inlet pipe is connected to the tank body by packing or welding in order to arrange the liquid injection port upward.

FIG. 8 is a perspective view of the first conventional example, and FIG.
FIG. 4 is a side sectional view thereof. As shown in FIG. 8, an opening 31 is formed in the upper portion of the tank body 30, and a packing 32 is fitted in the opening 31. As shown in FIG. 9, one end 33a of an inlet pipe 33 is inserted into the packing 32 fitted in the opening 31 of the tank body 30, and the other end of the inlet pipe 33 forms a liquid injection port 33b.

FIG. 10 is a side view of the second conventional example. As shown in FIG. 10, a pipe connection port 41 is formed in the upper portion of the tank body 40. One end of an inlet pipe 42 is connected to the pipe connection port 41 by welding, and the other end of the inlet pipe 42 forms a liquid injection port 43.

[0005]

By the way, depending on the type of vehicle, there is a vehicle in which the tank main body is disposed above the engine room. In this case, the inlet pipe is not necessary, and the tank body having the liquid injection port formed so that the cap can be attached is necessary. However, in the first conventional example, the tank body 3
In order to connect the inlet pipe while ensuring the sealing property, the packing 32 is formed to be attached to the mere opening 31 of 0. Therefore, the structure of the liquid injection port portion of the tank body 30 is not compatible with both the mounting structure of the cap that covers the liquid injection port and the packing mounting structure for connecting the inlet pipe while ensuring the sealing property.
It had a separate structure.

Therefore, since the structure of the opening portion of the tank main body is different, the tank main body 30 formed so that the inlet pipe 33 can be connected cannot be diverted as the tank main body of the vehicle type which does not use the inlet pipe.

Further, in the second conventional example, the tank main body 40 in which the pipe connection port 41 for connecting the inlet pipe 42 by welding is formed is used. Again, when the tank main body 40 is arranged in the upper part of the engine room and the inlet pipe 42 is unnecessary, the welding surface is connected to the pipe connection port 41 of the tank main body 40 while ensuring the sealability while connecting the inlet pipe. It is necessary to have a dedicated pipe connection port shape having the above, and the structure of the pipe connection port portion of the tank body 40 is to connect the inlet pipe by welding while ensuring the sealing structure and the attachment structure of the cap that covers the pipe connection port. However, it was necessary to use different structures. Also, this tank body 40
However, the manufacturing cost is high due to the welding process of the inlet pipe 42 and the increase in the number of devices.

As described above, since the structure of the opening of the tank main body differs depending on whether the inlet pipe is connected or not, there is a problem that the tank main body having the same shape cannot be used when the disposing positions are different.

The present invention has been made to solve the above problems, and an object thereof is to provide a washer tank assembly using one type of tank body regardless of whether or not an inlet pipe is connected. It is in.

[0010]

In order to solve the above-mentioned problems, the invention as set forth in claim 1 has a first liquid injection port which is formed in a cylindrical shape and has a front end opened, and a liquid is internally stored. A tank main body for storing is provided, wherein the tank main body has an attachment packing member attached to the first liquid injection port, so that one end is inserted into the first liquid injection port and the attachment packing member is used. A liquid injection pipe that is attached to the tank body and has a second liquid injection port at the other end can be connected, and the mounting packing member is provided at the insertion port into which the liquid injection pipe is inserted and the insertion port. The gist is that it has a first seal portion that seals with the liquid injection pipe and a second seal portion that seals with the first liquid injection port.

According to a second aspect of the invention, in the first aspect of the invention, when the liquid injection pipe is inserted into the insertion port, the first seal portion and the second seal portion are:
The gist is that the elastic force associated with the elastic deformation of at least one of the seal portions elastically deforms the other seal portion.

The invention according to claim 3 is the invention according to claim 1 or 2.
In the invention described in (3), the first injection port has a groove portion on an inner peripheral surface or an outer peripheral surface of a cylindrical portion, and the mounting packing member has a holding portion that is retained by being engaged with the groove portion. Having it was the gist.

According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the outer diameter dimension of the insertion portion of the liquid injection pipe is larger than the inner diameter dimension of the first seal portion. It was made to be a big thing.

According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, an insertion regulation convex portion that defines an insertion margin is formed on the outer peripheral surface of the liquid injection pipe. What was done was made into the gist.

According to a sixth aspect of the present invention, in the invention according to any one of the first to fifth aspects, the inner diameter of the first injection port is larger than the outer diameter of the second seal portion. The point is that it is small.

According to a seventh aspect of the present invention, there is provided a first liquid injection port that is formed in a cylindrical shape and has a front end opened and a cap member attachable to the front end, and stores the liquid inside. A tank body, a mounting packing member detachably attached to the first liquid injection port, and one end inserted into the first liquid injection port,
A second liquid injection port is provided at the other end, and a liquid injection pipe is attached to the tank body via the attachment packing member, and the attachment packing member has an insertion port into which the liquid injection pipe is inserted. The gist is that it is provided with a first seal portion that is provided in the insertion port and that seals with the liquid injection pipe, and a second seal portion that seals with the first liquid injection port. .

(Operation) According to the invention described in claim 1,
By attaching the mounting packing member to the cylindrical first injection port and inserting the injection pipe into the insertion port of the mounting packing member, the reliable sealing ability between the first seal part and the second seal part. Is demonstrated. Therefore, by inserting and connecting the liquid injection pipe, the sealing performance is further improved, and liquid leakage from the connecting portion is prevented. Thereby, the injection port of the washer liquid can be moved from the first injection port to the second injection port.

According to the second aspect of the invention, since the first seal portion and the second seal portion exert forces on each other, the force applied to the first seal portion and the second seal portion is utilized for the sealing action without waste. It

According to the third aspect of the present invention, the holding packing formed on the mounting packing member is engaged with the groove formed on the tubular portion, so that the mounting packing member comes off from the first liquid injection port. It is possible to prevent the above, and to maintain the proper mounting state of the mounting packing member when the liquid injection pipe is inserted.

According to the fourth aspect of the present invention, the insertion portion of the liquid injection pipe is made to have the first seal by making the outer diameter dimension of the insertion portion of the liquid injection pipe different from the inner diameter dimension of the first seal portion. A pressure contact state between the first seal portion and the liquid injection pipe is created simply by inserting it into the portion.

According to the fifth aspect of the present invention, the holding packing formed on the mounting packing member is engaged with the groove formed on the tubular portion, so that the mounting packing member falls from the first liquid injection port. do not do.

According to the sixth aspect of the present invention, the mounting packing member is made different by making the inner diameter of the first injection port different from the outer diameter of the second seal portion formed on the mounting packing member. The pressure contact state between the second seal portion and the first liquid injection port is created only by attaching the second seal portion to the first liquid injection port of the tank body.

According to the seventh aspect of the present invention, the mounting packing member is attached to the first liquid injection port formed in a tubular shape, and the liquid injection pipe is inserted into the insertion port of the mounting packing member. A reliable sealing ability is exhibited by the one seal portion and the second seal portion. Therefore, the injection port of the washer liquid can be moved from the first injection port to the second injection port. Further, when the connection of the liquid injection pipe is unnecessary, it is possible to transfer from the second liquid injection port to the first liquid injection port by mounting a cap member instead of the mounting packing member.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a side view of the washer tank. FIG. 2 is a sectional view of the vicinity of the liquid injection port formed in the upper portion of the washer tank.

Washer tank 1 as a tank body
Has a first injection port 3, and a liquid such as a washer liquid is injected into the interior from the injection port 3. The first injection port 3 is formed by extending the upper portion of the washer tank 1 into a substantially cylindrical shape and opening the tip.

A locking projection 5 is formed at the outer edge of the tip of the first liquid injection port 3 so as to project radially outward. A groove portion 6 is formed on the outer peripheral surface of the first liquid injection port 3 by reducing the diameter of its base end. The groove 6 is
It is formed along the circumferential direction and is formed over the entire circumference of the outer peripheral surface.

A cap 7 as a cap member is fitted on the first liquid injection port 3. As shown in FIG. 3, the cap 7 has a substantially disc shape, and is formed in a substantially U-shaped cross-section that opens downward so as to cover the upper end of the first liquid injection port 3. A locking recess 8 that engages with the locking projection 5 is formed on the inner surface of the opening. The cap 7 is fixed to the first liquid injection port 3 by engaging the locking concave part 8 with the locking convex part 5, and closes the first liquid injection port 3.

When the washer tank 1 is arranged in the lower part of the engine room of a vehicle, an inlet pipe 9 as a liquid injection pipe is attached to the first liquid injection port 3 of the washer tank 1 as shown in FIG. To be The inlet pipe 9 is a long cylinder having a length from the washer tank 1 to the upper part of the engine room, one end of which is attached to the first injection port 3 of the washer tank 1 and the other end of which extends above the engine room. There is. The end portion (upper end) of the inlet pipe 9 extending to the upper part of the engine room serves as a second liquid injection port 10, and the inlet pipe 9 is a first liquid injection port formed in the washer tank 1 for a liquid such as washer liquid. Induce to 3. Therefore, during maintenance,
The washer liquid can be replenished in the washer tank 1 by injecting the washer liquid from the second liquid injection port 10 arranged above the engine room.

The attachment of the inlet pipe 9 will be described. A connection rubber 11 as an attachment packing member is attached to the first liquid injection port 3 of the washer tank 1.

FIG. 5 is a sectional view of the connecting rubber. The connection rubber 11 includes an inner wall 11a and an outer wall 11 formed in an annular shape.
b. The inner wall 11a and the outer wall 11b are integrated by connecting one end (upper side in FIG. 5) of the end. The connecting rubber 11 is formed in a substantially U-shaped cross section by connecting the inner wall 11a and the outer wall 11b to each other at one end.

A first seal portion 12 is formed on the inner peripheral surface of the inner wall 11a so as to project radially inward. The first seal portion 12 protrudes in a convex R shape, and the first seal portion 12 has an insertion portion 9a (shown by a chain double-dashed line) described below in which the diameter B connecting the most protruding portions is formed in the inlet pipe 9. The amount of protrusion is determined so as to be smaller than the outer diameter E of).

A second seal portion 13 is formed on the outer peripheral surface of the inner wall 11a so as to project radially outward. The second seal portion 13 is composed of a convex portion having a triangular cross section, and has a position corresponding to the first seal portion 12 in the radial direction (more specifically,
They are formed at inner and outer peripheral positions in the radial direction. The size of the second seal portion 13 is set so that the diameter C connecting the most protruding portions is larger than the diameter A of the first liquid injection port 3 formed in the washer tank 1. Has been done.

On the outer wall 11b, a recess 14 is formed near the connecting portion with the inner wall 11a so as to extend radially outward. The recess 14 is formed over the entire inner peripheral surface of the outer wall 11b.

The outer wall 11b is formed with a fastening recess 15 by reducing the diameter of the outer peripheral surface near the end opposite to the inner wall 11a and the outer wall 11b on the opposite side (lower end side in FIG. 5) in the radial direction. The fastening recess 15 is formed over the entire circumference of the outer wall 11b in the circumferential direction. The outer peripheral surface of the outer wall 11b and the bottom surface of the fastening recess 15 are continuously connected by the tapered portion 16.

In FIG. 5, at the lower end of the outer wall 11b, a flange portion 17 that projects radially outward and a retaining projection 18 that serves as a hold portion that projects radially inward are provided.
Are formed. Collar 17 and retaining projection 18
Are formed over the entire circumference in the circumferential direction on both the outer peripheral surface and the inner peripheral surface of the outer wall 11b. The collar portion 17 is formed in a suitable size so that the fastening band 20 described later does not fall off from the lower end (in FIG. 5) of the connecting rubber 11.

The retaining projection 18 is formed on the washer tank 1.
The groove 6 is formed to have the same size as the depth of the groove 6. The retaining protrusion 18 has a lower end (in FIG. 5).
Is obliquely cut to form a tapered portion 19 over the entire circumference in the circumferential direction. Therefore, the retaining protrusion 18 is notched in a taper shape so that the protrusion amount from the outer wall 11b decreases as it approaches the lower end.

FIG. 6 is a partial sectional view of the washer tank and the connecting rubber when the inlet pipe is attached. The inlet pipe 9 has an insertion portion 9a that is inserted into the washer tank 1 at its tip (lower end in the figure). The inlet pipe 9 has an insertion regulation convex portion 9b formed at a position separated from the tip by an insertion margin D. Insertion restriction protrusion 9
The letter “b” projects radially outward from the outer peripheral surface of the inlet pipe 9, and is formed over the entire circumference of the outer peripheral surface of the inlet pipe 9 in the circumferential direction. The insertion regulation convex portion 9b is formed such that the outer diameter thereof is larger than the diameter of the opening portion 11c as the insertion port of the connection rubber 11.

The tip (lower end in the figure) of the insertion portion 9a is
The outer edge portion is formed in a chamfered state in a tapered shape over the entire circumference in the circumferential direction, and the outer diameter of the tip is formed smaller than the inner diameter of the first seal portion 12.

The connecting rubber 11 is attached so that the first liquid injection port 3 is fitted between the inner wall 11a and the outer wall 11b of the connecting rubber 11. In the state where the connection rubber 11 is attached to the washer tank 1, the locking projection 5 formed at the tip of the first injection port 3 is housed in the recess 14 formed in the outer wall 11b of the connection rubber 11. . Further, the retaining projection 18 formed on the tip of the outer wall 11b of the connecting rubber 11 is a side wall of the groove 6 formed in the first liquid injection port 3 of the washer tank 1 (in the figure, the retaining projection 18
(Upper part of).

A fastening band 20 is provided in the fastening recess 15 of the connecting rubber 11. The inner diameter of the fastening band 20 is
It is formed to have a diameter smaller than the outer diameter of the fastening recessed portion 15, which prevents the lower portion of the connecting rubber 11 from expanding.

Next, the operation of the washer tank assembly constructed as described above will be described with reference to FIGS. 2, 3, 5, and 6.
Follow the instructions below. When the washer tank 1 is arranged in the upper part of the engine room, the inlet pipe 9 is not connected, so the first liquid injection port 3 is closed by the cap 7.

Next, the operation of the washer tank assembly when the washer tank 1 is arranged in the lower part of the engine room will be described. A connection rubber 11 is attached to the first liquid injection port 3. The outer diameter E of the insertion portion 9a formed at the tip of the inlet pipe 9 is larger than the diameter B of the most protruding portion of the first sealing portion 12 formed on the connecting rubber 11 so that the first sealing portion 12 has a larger diameter. Has been formed. Therefore, when the insertion portion 9a of the inlet pipe 9 is inserted into the connecting rubber 11, the first seal portion 12 receives a force outward in the radial direction by the outer peripheral surface of the insertion portion 9a. The first seal portion 12, which receives the force outward in the radial direction, comes into pressure contact with the outer peripheral surface of the insertion portion 9a in a state of being elastically deformed.

The diameter C of the most protruding portion of the second seal portion 13 formed on the outer peripheral surface of the inner wall 11a of the connecting rubber 11
The second seal portion 13 is formed so as to be larger than the diameter A of the first liquid injection port 3 formed in the washer tank 1. Therefore, the washer tank 1 is connected to the connecting rubber 11
When assembled, the second seal portion 13 receives a force inward in the radial direction by the inner peripheral surface of the first liquid injection port 3. The second seal portion 13, which receives the force inward in the radial direction, comes into pressure contact with the inner peripheral surface of the first liquid injection port 3 in a state of being elastically deformed.

The first seal portion 12 and the second seal portion 13 are
It is formed at a position corresponding to the radial direction. The elastic forces acting on the first seal portion 12 and the second seal portion 13 both act radially inward and outward. Therefore, the elastic force of the second seal portion 13 urges the first seal portion 12 located on the radially inner side of the second seal portion 13 toward the radially inner side. In addition, the elastic force of the first seal portion 12 is the second seal portion 13 located radially outside the first seal portion 12.
Is urged radially outward.

Therefore, the insertion portion 9a of the inlet pipe 9
Is inserted into the opening 11c of the connecting rubber 11, the first seal portion 12 is pressed by the outer peripheral surface of the insertion portion 9a, and the second seal portion 13 is also pressed outward in the radial direction. Is closely pressed against the inner peripheral surface of the first liquid injection port 3. In this way, the insertion portion 9a of the inlet pipe 9 is inserted into the opening 11c of the connecting rubber 11 to insert the insertion portion 9a.
And the first seal portion 12, and between the second seal portion 13 and the inner peripheral surface of the first liquid injection port 3 are sealed together.

As described above, the connecting rubber 11 is attached to the first liquid injection port 3 formed in a tubular shape, and the connecting rubber 11 is also attached.
By inserting the inlet pipe 9 into the opening 11c, the first seal portion 12 and the second seal portion 13 exhibit a reliable sealing ability. Therefore, liquid leakage from the connecting portion is prevented, and the connection rubber 11 enables the connection between the inlet pipe 9 and the first liquid injection port 3.

In this way, the inlet pipe 9 depends on whether or not the connecting rubber 11 is attached to the washer tank 1.
Since the presence or absence of connection can be selected, the same washer tank 1 can be used in either case.

A taper portion 19 is provided on the lower end of the retaining projection 18.
Is formed, and the first injection port 3 of the washer tank 1 is formed.
When the connection rubber 11 is attached to the outer wall 11 b of the connection rubber 11, the outer wall 11 b is expanded by the tapered portion 19. Therefore, the tip portion of the first liquid injection port 3 is easily fitted between the inner wall 11a and the outer wall 11b of the connecting rubber 11 while sliding on the tapered portion 19.

In the state where the connecting rubber 11 is attached to the first liquid injection port 3 of the washer tank 1, the retaining projection 18 of the connecting rubber 11 engages with the groove 6 of the washer tank 1 to engage the washer tank 1. The stop projection 5 is engaged with the recess 14 of the connecting rubber 11. Therefore, the connection rubber 11 is prevented from falling off the first liquid injection port 3.

Further, the connection rubber 11 is attached to the washer tank 1.
Since the fastening concave portion 15 is surrounded by the fastening band 20 as the diameter expansion preventing member from the outer peripheral surface in the state where the connection rubber 11 is attached, the connection rubber 11 is prevented from becoming the diameter expansion state.

The tip of the insertion portion 9a of the inlet pipe 9 is formed in a tapered shape, and the diameter of the tip of the tapered portion is made smaller than the inner diameter of the first seal portion 12. Therefore, the inlet pipe 9 can be easily inserted, and the inlet pipe 9 can be easily inserted.
The insertion portion 9a of does not damage the first seal portion 12.

As described above, this embodiment has the following effects. (1) The inlet pipe 9 is connected to the washer tank 1 by the connection rubber 11 attached to the first liquid injection port 3 formed in a cylindrical shape, and the space between the first liquid injection port 3 and the inlet pipe 9 is sealed. did. Therefore, the inlet pipe 9
The washer tank 1 can be made to have the same shape both when connecting the pipes and when the inlet pipe 9 is not required, and the washer tank 1 can be manufactured with only one type of mold.

(2) Depending on the arrangement of the washer tank 1 in the engine room, liquid is directly injected into the first liquid injection port 3 formed in the washer tank 1, or the inlet pipe 9 is attached to the first liquid injection port 3. It is possible to select whether to connect and inject the liquid from the second liquid injection port 10. Therefore, wherever the washer tank 1 is arranged in the engine room, the liquid injection port can be arranged in the upper part of the engine room, and the liquid injection work during maintenance can be easily performed.

(3) The elastic forces acting on the first seal portion 12 and the second seal portion 13 also act on the other corresponding to each other in the radial direction. Therefore, the first seal portion 12 and the second seal portion 1
The elastic force acting on 3 can be effectively used, and the sealing of both seal portions 12 and 13 can be performed efficiently.

(4) When the insertion portion 9a of the inlet pipe 9 is inserted into the connecting rubber 11, the first seal portion 12 which receives a force outward in the radial direction presses against the outer peripheral surface of the insertion portion 9a while being elastically deformed. To do. Therefore, sealing can be performed between the first seal portion 12 and the insertion portion 9a, and the connection rubber 1
It is possible to prevent the liquid from leaking between the opening 11c of No. 1 and the inlet pipe 9.

(5) Rubber 11 connected to the washer tank 1
When assembled, the second seal portion 13, which receives a force inward in the radial direction, comes into pressure contact with the inner peripheral surface of the first liquid injection port while being elastically deformed. Therefore, sealing can be performed between the second seal portion 13 and the first liquid injection port 3, and the washer tank 1
It is possible to prevent the liquid from leaking between the connection rubber 11 and the connection rubber 11.

(6) Rubber 11 connected to the washer tank 1
When attaching, the retaining projection 18 of the connecting rubber 11 engages with the groove portion 6 of the washer tank 1, and the locking protruding portion 5 of the washer tank 1 becomes the concave portion 14 of the connecting rubber 11.
Is engaged with. Therefore, for example, even when the liquid contained in the washer tank 1 is frozen and the inner pressure of the liquid causes the inlet pipe 9 and the connecting rubber 11 to be pushed out of the washer tank 1, the connecting rubber 11 is dropped from the washer tank 1. Can be prevented.

(7) Since the outer wall 11b of the connecting rubber 11 is surrounded by the fastening band 20 from the outer peripheral surface, the diameter of the outer wall 11b is not increased. Therefore, the retaining protrusions 18 are formed in the groove portions 6.
It is possible to stabilize the mounting state of the connection rubber 11 without coming off.

The embodiment of the present invention may be modified as follows. ○ FIG. 7 is a perspective view of a connecting rubber according to another embodiment. The connection rubber 21 is formed with a notch 22 extending in the axial direction in a part of the outer wall 11b of the connection rubber 11 in the above-described embodiment. The notch 22 is the fastening recess 1
5, the retaining protrusion 18 and the collar 17 are cut out. By forming the connecting rubber 21 in this way, the outer wall 11b can be easily expanded in diameter, so that the connecting rubber 21 can be easily attached to the washer tank 1. After the connection rubber 21 is attached to the washer tank 1, the fastening recess 15 is formed in the fastening band 2.
0 surrounds the entire circumference, and the outer wall 11b
Prevents the connecting rubber 21 from falling off due to the expanded diameter.

Further, in the above-mentioned connecting rubber 21, the cutout portion 22 is not limited to one place, but may be formed in a plurality of places. In the above-described embodiment, the shape of the first seal portion 12 is the convex R-shaped projection portion, but the first seal portion 12 is pressed against the insertion portion 9a of the inlet pipe 9 to improve sealing ability inside and outside the washer tank 1. It is good if it can be demonstrated. Therefore, for example, the first seal member may be formed of a protrusion having a substantially triangular cross section or a protrusion having a substantially corrugated cross section, but is not limited to this.

In the above embodiment, the shape of the second seal portion 13 is a protrusion having a substantially triangular cross section, but the second seal portion is in pressure contact with the first liquid injection port 3 and seals inside and outside the washer tank 1. Anything that can demonstrate its abilities will do. Therefore, the protrusion of the second seal portion may be formed by, for example, one having a convex R-shaped cross section or one having a substantially corrugated cross section, but is not limited to this.

The technical ideas that can be understood from the above embodiments will be described below. (A) A notch (22) facing the axial direction of the mounting packing member (11) is formed on the outer edge of the mounting packing member (11). The washer tank assembly according to item 1. According to this configuration, the diameter of the mounting packing member can be easily expanded, so that the mounting packing member can be easily mounted to the first liquid injection port.

(B) The mounting packing member (11) mounted on the first liquid injection port (3) is characterized in that the outer peripheral surface thereof is surrounded by the diameter expansion prevention member (20) over the entire circumferential direction. The washer tank assembly according to any one of claims 1 to 7 and (a) above. According to this configuration, since the mounting packing is not expanded after the mounting packing is attached to the first liquid inlet, the mounting packing can be prevented from falling off.

[0064]

As described in detail above, according to the present invention,
It is possible to provide a washer tank assembly that can be used with one type of tank regardless of whether the inlet pipe is connected or not.

[Brief description of drawings]

FIG. 1 is a side view of a washer tank when an inlet pipe is unnecessary.

FIG. 2 is a cross-sectional view of a washer tank near a liquid injection port.

FIG. 3 is a cross-sectional view of the washer tank near the liquid injection port when the cap is attached.

FIG. 4 is a side view of the washer tank when the inlet pipe is attached.

FIG. 5 is a sectional view of a connecting rubber.

FIG. 6 is a cross-sectional view of the vicinity of the connecting rubber when the inlet pipe is attached.

FIG. 7 is a perspective view of a connection rubber of another example.

FIG. 8 is a perspective view of a conventional washer tank.

FIG. 9 is a cross-sectional view of a conventional washer tank when an inlet pipe is attached.

FIG. 10 is a side view of the conventional washer tank when the inlet pipe is attached.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Washer tank as a tank main body, 3 ... 1st injection port, 6 ... Groove part, 7 ... Cap as a cap member,
9 ... Inlet pipe as liquid injection pipe, 9a ... Insertion part, 9b ... Insertion regulation convex part, 10 ... Second liquid injection port, 11 ... Connection rubber as mounting packing member, 11c ... Opening part as insertion port, 12 ... first seal portion, 13 ... second seal portion, 18 ... preventing protrusion as a hold portion.

Claims (7)

[Claims] 1. A tank main body (1) having a first liquid injection port (3) extending in a tubular shape and having an open tip and storing a liquid therein, the tank main body (1) comprising: By attaching the mounting packing member (11) to the first liquid injection port (3), one end is inserted into the first liquid injection port (3), and the attachment packing member (11) is inserted through the mounting packing member (11). A liquid injection pipe (9) attached to the tank body (1) and having a second liquid injection port (10) at the other end can be connected, and the attachment packing member (11) is the liquid injection pipe (9). Insertion port (11c) into which is inserted
And the liquid injection pipe (9) provided at the insertion port (11c)
A washer comprising: a first seal part (12) for sealing between the first and the second injection parts (3) and a second seal part (13) for sealing between the first liquid injection port (3). Tank assembly. 2. The injection pipe (9) is provided with the insertion port (1).
1c) when inserted into said first seal part (12)
And the second seal part (13) elastically deforms the other seal part (12, 13) by an elastic force caused by elastic deformation of at least one of the seal parts (12, 13). The washer tank assembly according to Item 1. 3. The first liquid injection port (3) has a groove portion (6) on an inner peripheral surface or an outer peripheral surface of a cylindrical portion, and the mounting packing member (11) has the groove portion (6). The washer tank assembly according to claim 1 or 2, further comprising a hold portion (18) which is engaged with and held by the holder. 4. The insertion part (9a) of the liquid injection pipe (9).
The washer tank assembly according to any one of claims 1 to 3, wherein the outer diameter of the washer is larger than the inner diameter of the first seal portion (12). 5. The injection regulating projection (9b) for defining an insertion allowance is formed on the outer peripheral surface of the liquid injection pipe (9). The washer tank assembly as described in the item. 6. The inner diameter dimension of the first liquid injection port (3) is smaller than the outer diameter dimension of the second seal portion (13). The washer tank assembly described in. 7. A tank for storing a liquid therein, which has a first liquid injection port (3) formed in a cylindrical shape and having an open front end and a cap member (7) attachable to the front end. The main body (1), a mounting packing member (11) detachably attached to the first liquid injection port (3), one end is inserted into the first liquid injection port (3), and the other end is The mounting packing member (11) having two liquid injection ports (10)
And a liquid injection pipe (9) attached to the tank body (1) through the attachment packing member (11), the insertion port (11c) into which the liquid injection pipe (9) is inserted.
And the liquid injection pipe (9) provided at the insertion port (11c)
A washer comprising: a first seal part (12) for sealing between the first and the second injection parts (3) and a second seal part (13) for sealing between the first liquid injection port (3). Tank assembly.