JPS6328121Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a reservoir tank device for automobile engine cooling water or lubricating oil.

The present invention will be explained based on the embodiment shown in FIGS. 1 and 2. Reference numeral 1 generally indicates a reservoir tank preferably formed of a synthetic resin material.
Reference numeral 2 designates a liquid storage tank portion thereof, 3 a communication portion extending laterally from the upper end of the side surface of the liquid storage tank portion 2, and 4 a liquid injection portion.
Further, 5 is an opening/closing lid that engages with the opening of the liquid injection part 4;
6 is a reinforcing rib that protrudes from the inner wall surface 7 of the liquid storage tank 2 to increase the rigidity of the liquid storage tank 2; 8 is a first projecting wall that hangs down from above the inner wall surface of the communication section 3 so as to cross the communication section 3; Reference numeral 9 denotes a second projecting wall that projects upward from below the inner wall surface of the first projecting wall 8 that is deviated toward the liquid storage tank portion 2 side. Reference numeral 10 denotes a slit formed in a part of the first projecting wall 8 to prevent air from accumulating in the reservoir tank 1. Further, reference numeral 11 denotes a slit formed in a part of the second projecting wall 9, which functions as a passage through which the liquid injected from the liquid injection part 4 flows into the liquid storage tank part 2. 12 indicates the liquid level.

As described above, in the device of this embodiment, the liquid storage tank and the liquid injection part are located at positions offset from each other by the distance H, so the liquid level 12 shakes due to vibrations when the vehicle is running, creating waves. Even if the wave moves in the direction of arrow A, the second
Since it hits the projecting wall 9 and is further reflected in the direction of arrow B, the movement of the liquid from the liquid injection part 4 in the direction of the opening/closing lid 5 is prevented as much as possible, and the presence of the reinforcing rib 6 causes the liquid to be generated in the liquid storage tank part 2. Since roughness of the liquid surface 12 can also be suppressed, leakage of liquid to the outside from the gap between the opening/closing lid 5 and the opening end of the liquid injection part 4 or from a breather part (not shown) formed in the lid 5 can be prevented. have an effect.

Note that although the reinforcing ribs 6 are formed in the above embodiments, they do not necessarily have to be provided.

As described above, according to the present invention, since the projecting wall part is formed on the inner wall surface of the communication part of the reservoir tank, the projecting wall part functions as a kind of breakwater, and therefore, the projecting wall part functions as a kind of breakwater. It has the effect of attenuating the force of waves on the liquid surface and effectively preventing liquid leakage from the liquid injection part 4 to the outside.

[Brief explanation of the drawing]

Figure 1 is a sectional view of an embodiment of the present invention, Figure 2 is a cross-sectional view of an embodiment of the present invention;
The figure is a view taken in the direction of the arrow in FIG. 1: Reservoir tank, 2: Liquid storage tank section, 3: Communication section, 4: Liquid injection section, 8: First projecting wall, 9: Second projecting wall.

Claims (1)

[Scope of utility model registration request] In a vehicle reservoir tank comprising a liquid storage tank, a communication part extending laterally from the upper end of the side surface of the liquid storage tank, and a liquid injection part communicating with the communication part, the A first protruding wall that hangs down across the communicating portion and a second protruding wall that protrudes upward from below the inner wall surface of the communicating portion that is deviated toward the liquid storage tank side of the first protruding wall are connected to the communicating portion, respectively. By forming vertical slits in the first protruding wall and the second protruding wall, respectively, the liquid in the liquid storage tank part is prevented from leaking to the outside from the liquid injection part. A reservoir tank device comprising: