JPH11141336A - Reserve tank for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispense with a clamp by pressing a bent hole part in a recessed part to the recessed part side by the return force of a curved part utilizing the elastic deformation of the curved part when the bent hose is mounted on a reserve tank, to reduce an assembling manhour to improve the assembling property, and to surely fixe the bent hose to the recessed part. SOLUTION: In a reserve tank 2 for a vehicle where a piping part is provided on a cap 4 disposed on an upper part, one edge side of a bent hose 10 is mounted on the piping part, and the bent hose 10 is directed downward by a curved part 12 formed in the midway of the bent hose 10, a recessed part 18 for communicating an upper part and a lower part of the reserve tank 2, and storing the bent hose 10, is formed on a side part of the reserve tank 2, and the curved part 12 is formed with an acute angle to allow the bent hose part in the recessed part 18 to tightly attach to the recessed part 18 side after the bent hose 10 is mounted, when the bent hose 10 is formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reserve tank for a vehicle, and more particularly, to a reserve tank for a vehicle in which a vent hose provided in the reserve tank has an improved mountability.

[0002]

2. Description of the Related Art A vehicle is provided with a radiator for maintaining engine cooling water for cooling an engine at a predetermined temperature. The engine coolant in the radiator expands and contracts at high temperatures during engine operation and at low temperatures when the engine is stopped, so that a reserve tank is provided to absorb the expansion of the engine coolant at high temperatures. Has been established.

A cap is provided above the reserve tank, and the cap is provided with a plurality of pipes for communication between the reserve tank and the radiator or for overflow.

[0004] As the vehicle reserve tank, there is one disclosed in JP-A-6-221157. In the reserve tank disclosed in this publication, the upper end of the overflow hose is connected to the upper part of the tank body, and the lower end is directed downward at the side of the tank body. Is made in close contact with the tank body, eliminating the need for a clamp member conventionally provided separately from the tank body, reducing the number of parts and man-hours, and also preventing erroneous assembly.

[0005]

In a conventional vehicle reserve tank, as shown in FIG. 4, a cap 104 is provided on an upper portion 102a of the reserve tank 102, a pipe portion 106 is provided on the cap 104, and a pipe 104 is provided. One end of a vent hose 110 functioning as a ventilation hose is connected to the portion 106.

As shown in FIG. 4, for example, the vent hose 110 is disposed so as to be directed downward from a corner of the upper portion 102a of the reserve tank 102 while adding a side portion 102b of the reserve tank 102.

At this time, the side 1 of the reserve tank 102
02b, the vent hose 110 is clamped
It is fixed at 22.

As a result, when the reserve tank is formed, it is necessary to consider a mounting portion of the clamp and the like, and the structure is complicated, the manufacturing is difficult, the cost is large, and there is a disadvantage that it is economically disadvantageous. .

Further, when the vent hose is attached to the reserve tank, it is necessary to pass the vent hose through the clamp, and since the number of assembly steps is large, the assemblability is poor, which is disadvantageous in practical use.

[0010]

SUMMARY OF THE INVENTION In order to eliminate the above-mentioned disadvantages, the present invention provides a pipe provided on a cap disposed at an upper portion, and attaches one end of a vent hose to the pipe, In a vehicle reserve tank arranged so as to be directed downward by a curved portion formed in the middle of the hose, a concave portion capable of connecting the upper and lower portions of the reserve tank to the side of the reserve tank and accommodating the vent hose is provided. When the vent hose is formed, the bent portion is provided at an acute angle so that the bent hose portion in the concave portion is brought into close contact with the concave portion after the vent hose is attached.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION
When attaching the vent hose to the reserve tank, insert one end of the vent hose into the pipe part, attach it so that a part of the vent hose is housed in the concave part, and use the elastic part of the curved part The vent hose portion in the concave portion is pressed so as to be in close contact with the concave portion, thereby eliminating the need for a clamp, reducing the number of assembling steps, improving the assemblability, and securely fixing the vent hose to the concave portion.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

1 to 3 show an embodiment of the present invention. 1 to 3, reference numeral 2 denotes a reserve tank.

A cap 4 is detachably mounted on the upper portion 2a of the reserve tank 2. The cap 4 is provided with a plurality of, for example, two first and second pipe portions 6, 8,
One end of the vent hose 10 is attached to the first pipe portion 6 and provided.

The bent portion 12 is provided in the middle of the vent hose 10.
To form That is, the vent hose 10 is connected to the first
One end side of the horizontal part 1 attached to the pipe part 6 and a horizontal state
4, a curved portion 12 connected to the horizontal portion 14, and a hanging portion 16 directed downward from the curved portion 12. The bent portion 12 directs the hanging portion 16 of the vent hose 10 downward. Has been established.

At this time, a concave portion 18 for connecting the upper portion 2a and the lower portion 2c of the reserve tank 2 and accommodating the vent hose 10 is provided on the side portion 2b of the reserve tank 2, and the vent hose 10 is formed. In this case, the bent portion 12 is provided at an acute angle so that the bent hose 16 is brought into close contact with the recessed portion 16 after the vent hose 10 is attached.

More specifically, for example, the reserve tank 2
As shown in FIGS. 1 to 3, a concave portion 18 connecting the upper portion 2a and the lower portion 2c of the reserve tank 2 is formed in the side portion 2b and the corner portion. The size of the concave portion 18 is set to a size that allows the vent hose 10 to be housed so as not to protrude outside the reserve tank 2 when the vent hose 10 is attached to the reserve tank 2.

As shown in FIG. 1, the bent portion 12 is bent at an acute angle A smaller than 90 degrees, and after the bent hose 10 is attached to the reserve tank 2, the bent portion of the bent hose 10 is formed. 12 by using the elastic deformation of
The downward force 16 of the vent hose 10 is pressed against the concave portion 18 by the returning force of the above to make close contact.

Further, as shown in FIG. 3, the reserve tank 2 is provided with a first pipe portion 6 provided on a cap 4 of an upper portion 2a.
The angle B between the line segment L1 of the first pipe portion and the line segment L2 contacting both ends 18-1 and 18-2 forming the concave portion 18 is substantially a right angle, that is, the line segment L1 of the directivity direction of the first pipe portion 6. And a line segment L2 that is in contact with both ends 18-1 and 18-2.

Next, the operation will be described.

A vent hose 10 is provided in the reserve tank 2.
When attaching the vent hose 10, as shown in FIG. 1, the end of the horizontal portion 14 which is one end side of the vent hose 10 from the outside of the concave portion 18 is inserted into the first pipe portion 6, and the vent hose 10 is attached.

At this time, the curved portion 12 is formed at an acute angle A
When the bent hose 12 is attached, the bent portion 12 is elastically deformed when the bent hose 12 is attached. Pressed to make close contact with the side.

Thus, the concave portion 18 is formed in the reserve tank 2.
Can be dealt with only by forming a simple shaped dent, and there is no need to form a clamp mounting part, as compared with conventional ones, the structure is simplified, and the production is easy. The cost can be reduced, which is economically advantageous.

The bent portion 12 of the vent hose 10
Is formed at an acute angle A, so that it is easy to manufacture, there is no fear that the cost is increased as compared with the conventional one, the cost can be maintained at a low level, and the vent hose 10 is assembled at the time of assembling. Horizontal section 1 at one end of hose 10
Only by inserting the four end portions into the first pipe portion 6, the bending portion 12
Due to the return force, the hanging portion 16 of the vent hose 10 is pressed so as to be in close contact with the concave portion 18 side, eliminating the need for a clamp and eliminating the work of passing the vent hose through the clamp as in the prior art. The man-hour can be reduced, the assembling property becomes good, and the hanging part 1 of the vent hose 10 can be reduced.
6 can be securely fixed to the concave portion 18, which is practically advantageous.

Further, the directional line segment L1 of the first pipe portion 6 provided on the cap 4 of the upper portion 2a of the reserve tank 2
And an angle B between the line segment L2 contacting both ends 18-1 and 18-2 forming the concave portion 18 is substantially a right angle, that is, the directional line segment L1 of the first pipe portion 6 and both ends 18-1 and 18-1, 18-
Since the reserve tank 2 is formed so that the line segment L2 that is in contact with the reservoir tank 2 is substantially perpendicular to the line segment L2, the hanging portion 16 of the vent hose 10 is securely accommodated in the recess 18 after the vent hose 10 is assembled to the reserve tank 2. Will be
There is no danger that a defect such as a positional deviation after assembling of the vent hose 10 is caused, which can contribute to improvement of assemblability.

It should be noted that the present invention is not limited to the above-described embodiment, and various applications and modifications are possible.

For example, in the embodiment of the present invention, the vent hose of the reserve tank has been described. However, when the hose is fixed to a tank other than the reserve tank, that is, a tank such as a fuel tank or an oil tank, the present invention is applied. Can be used.

Further, in the embodiment of the present invention, a concave portion connecting the upper portion and the lower portion of the reserve tank is formed at a side portion and a corner portion of the reserve tank, but a substantially central portion of the side portion of the reserve tank is formed. It is also possible to form a concave portion in the groove.

[0029]

As described above in detail, according to the present invention, a pipe is provided on a cap disposed at an upper portion, one end of a vent hose is attached to the pipe, and a curved portion formed in the middle of the vent hose is provided. In the vehicle reserve tank arranged to be directed downward by, the upper part and the lower part of the reserve tank are connected to the side of the reserve tank to provide a recess capable of accommodating the vent hose, and when forming the vent hose Since the bent section is formed at an acute angle after the vent hose is attached so that the vent hose part in the recess is in close contact with the recess side, when forming the recess in the reserve tank, it is only necessary to form a simple shaped dent This eliminates the need to form a clamp mounting site, as compared with conventional ones, simplifies the structure, is easy to manufacture, and reduces costs. Obtained, it is economically advantageous. Further, since the bent portion of the vent hose is formed to be bent at an acute angle, it is easy to manufacture, there is no possibility that the cost is increased as compared with the conventional one, and the cost can be maintained at a low cost. Simply insert one end of the vent hose into the pipe when assembling the hose, and the return force of the curved part presses the vent hose part in the concave part so that it comes into close contact with the concave part, eliminating the need for a clamp. It is possible to eliminate the work of passing the vent hose through the clamp as described above, and it is possible to reduce the number of assembling steps, improve the assemblability, and securely fix the vent hose part in the concave part to the concave part, It is practically advantageous.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a reserve tank before a vent hose is attached, showing an embodiment of the present invention.

FIG. 2 is a schematic perspective view of a reserve tank after a vent hose is attached.

FIG. 3 is an enlarged plan view of a reserve tank.

FIG. 4 is a schematic perspective view of a reserve tank after a vent hose is attached, showing the prior art of the present invention.

[Explanation of symbols]

 2 Reserve tank 2a Upper part 2b Side part 2c Lower part 4 Cap 6 First pipe part 8 Second pipe part 10 Vent hose 12 Curved part 14 Horizontal part 16 Hanging part 18 Depression L1 Direction direction line segment of first pipe part L2 Depression is formed Line segments touching both ends

Claims (2)

[Claims] 1. A vehicle in which a pipe portion is provided on a cap provided at an upper portion, one end of a vent hose is attached to the pipe portion, and the pipe is disposed so as to be directed downward by a curved portion formed in the middle of the vent hose. In the reserve tank for use, the upper part and the lower part of the reserve tank are connected to the side of the reserve tank to provide a recess capable of accommodating the vent hose. The reserve tank for a vehicle, wherein the bent portion is provided at an acute angle so that the vent hose portion of the vehicle can be in close contact with the concave portion. 2. The reserve tank according to claim 1, wherein an angle formed by a line segment in a directional direction of a pipe portion provided in an upper cap and a line segment in contact with both ends forming the concave portion is substantially a right angle. The reserve tank for a vehicle as described.