JPH07324966A - Unit for confirming quantity of liquid in washer tank - Google Patents

Abstract

PURPOSE:To provide a unit for confirming the quantity of liquid in a washer tank in which the quantity of washer liquid can be detected easily. CONSTITUTION:A cap 6 is provided with a hole 7 communicating between the inside and outside of a washer tank 1 and an axial float 9 is inserted movably up and down into the communication hole 7. The cap 6 is also provided with a sub-cap 16 for opening/closing the communication hole 7 and when the sub-cap 16 is opened, the float 9 is pushed up by the buoyancy and the upper end thereof projects from the communication hole 7. Residual quantity of washer liquid 4 can be confirmed based on the length of the float 9 projecting from the communication hole 7. This structure realizes a semipermanently usable unit which is not susceptible to deterioration of components and can confirm the quantity of liquid easily and accurately.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in a washer tank for cleaning a front windshield of an automobile.
The present invention relates to a device for confirming the amount of liquid in a washer tank.

[0002]

2. Description of the Related Art As an example of a conventional liquid amount confirmation device in a washer tank, there is a liquid amount confirmation device shown in FIG. The washer tank 1 shown in the figure is invisible from the engine room side because the parts other than the liquid injection cylinder are located inside the fender (not shown). A liquid injection cylinder 2 is formed so as to project on the upper surface of the washer tank 1. A plate-like float 3 is inserted in the liquid injection cylinder 2 and floats on the washer liquid 4 in the washer tank 1. In this liquid quantity confirmation device, the cap 6 which covers the injection port 5 of the washer tank 1 is opened, the liquid injection cylinder 2 is looked into from the injection port 5, and the position of the plate-like float 3 is visually checked to determine the height of the liquid surface. To check the amount of liquid in the washer tank 1.

Another example of the conventional liquid amount confirmation device in the washer tank 1 is shown in FIG. In the figure, a communication hole 7 that communicates the inside and outside of the washer tank 1 is formed in the center of the cap 6. Cap 6
A transparent tube 8 having one end connected to the inner side opening of the communication hole 7 and the other end inserted into the washer liquid 4 is attached to this.

In this liquid amount confirmation device, when confirming the liquid amount (remaining amount) of the washer liquid 4, one end of the transparent tube 8 is closed with a finger, and in this state, the cap 6 is removed from the injection port 5 and the transparent tube is removed. The amount of the washer liquid 4 is confirmed by separating 8 from the washer liquid 4 and visually observing the liquid surface of the washer liquid 4 inside through the transparent tube 8.

A liquid amount confirmation device of the same type as that shown in FIG. 5 is disclosed in Japanese Utility Model Application No. 51-47517 (Japanese Utility Model Application No.
138766) microfilm (Specification page 3, line 2 to line 18, page 4 line 6 to 1)
5) and FIG. 2).

[0006]

By the way, in the liquid quantity confirmation device in the washer tank shown in FIG.
Since the position of the plate-like float 3 is visually checked by looking into the liquid injection cylinder 2 to check the height of the liquid surface, the liquid amount cannot be easily confirmed.

Further, in the liquid quantity confirming device in the washer tank shown in FIG. 5, when the transparent tube 8 becomes dirty and it becomes difficult to detect the liquid quantity, or when the washer liquid 4 is transparent like water, The confirmation was difficult.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a device for confirming the liquid amount in a washer tank that can easily detect the liquid amount of the washer liquid.

[0009]

In order to achieve the above object, the present invention provides a cap, which covers an inlet of a washer tank for storing washer liquid, with a communication hole for communicating the inside and outside of the washer tank, A shaft-like float floating on the washer liquid is vertically movably inserted into the communication hole,
It is characterized in that a sub cap for opening and closing the communication hole is provided in the cap.

[0010]

With the above construction, the subcap contacts the upper end of the float with the subcap 6 closed, and the float is inserted into the washer liquid. When the sub cap is opened, the float floats due to buoyancy, and the upper end side of the float projects from the communication hole. By checking the protruding length of the float from the communication hole of the float, the remaining amount of the washer liquid can be confirmed.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A liquid quantity confirmation device in a washer tank according to an embodiment of the present invention will be described below with reference to FIGS. In the figure, a washer liquid 4 is stored in a washer tank 1. On the liquid surface of the washer liquid 4, a substantially axial float 9 is floated.

The float 9 is a disk-shaped float body 1
0 and a shaft-shaped member 11 attached to the float main body portion 10 in general. The shaft-shaped member 11 includes
A scale 12 is attached. The scale 12 is displayed to indicate the amount of protrusion of the shaft-shaped member 11 from the communication hole 7, as described later. Float body 10 and shaft-shaped member 1
Although it is configured by a member different from 1, the float body 10 and the shaft-shaped member 11 may be formed by the same member instead.
A disc-shaped member 13 having a diameter larger than that of the shaft-shaped member 11 is attached to the upper end of the shaft-shaped member 11 with an adhesive or the like. In the present embodiment, the shaft-shaped member 11 and the disc-shaped member 13 are separate members, but instead of this, the shaft-shaped member 11 and the disc-shaped member 13 may be formed of the same member. .

A cap 6 is detachably attached to the injection port 5 of the liquid injection cylinder 2 provided in the upper portion of the washer tank 1. A handle 14 is provided on the cap 6 so that it can be easily held. At the center of the cap 6, there is formed a tubular portion 15 that projects inward and outward of the washer tank 1. The inside of the tubular portion 15 communicates with the inside and outside of the washer tank 1 to form a communication hole 7. The inner diameter of the communication hole 7 is set to be slightly larger than the outer diameter of the shaft-shaped member 11 of the float 9 and smaller than the outer diameter of the disc-shaped member 13.

The shaft-shaped member 11 of the float 9 is inserted into the communication hole 7. Since the inner diameter of the communication hole 7 is set to be longer than the outer diameter of the shaft-shaped member 11 of the float 9, the shaft-shaped member 11 and thus the float 9 are formed.
Can move up and down with respect to the cap 6. Also,
Since the inner diameter of the communication hole 7 is set to be slightly larger than the outer diameter of the shaft-shaped member 11 of the float 9, the float 9 can be vertically moved vertically without tilting. Become.

A sub cap 16 for opening and closing the communication hole 7 is attached to the cap 6. The sub cap 16 can press the disc-shaped member 13 provided on the shaft-shaped member 11 when the communication hole 7 is closed.
Moreover, when the communication hole 7 is opened, it can be separated from the float 9.

The operation of the liquid amount confirmation device in the washer tank constructed as described above will be described.

First, the float 9 is pushed down against the buoyancy of the float 9, the float body 10 is inserted into the washer liquid 4, and in this state, the sub-cap 16 is placed on the upper side of the tubular portion 15 as shown in FIG. The communication hole 7 is closed by covering it. Figure 3
In the state where the sub cap 16 is closed as shown in, the sub cap 16 presses the disc-shaped member 13 of the float 9,
As a result, the float body 10 is inserted into the washer liquid 4.

When the sub cap 16 is opened, as shown in FIG. 2, the float 9 is lifted by buoyancy, and the upper end side of the shaft-shaped member 11 of the float 9 projects from the communication hole 7. Then, the remaining amount of the washer liquid 4 can be confirmed by visually observing the scale 12 attached to the shaft-shaped member 11, that is, the protruding length of the float 9 from the communication hole 7.

The amount of protrusion of the float 9 protruding from the communication hole 7 is measured by the buoyancy of the float 9 to check the remaining amount of the washer liquid 4, so that the position of the plate-like float 3 can be checked by looking into the inlet 5. The amount of liquid can be confirmed more accurately and easily than the conventional technique (see FIG. 4) in which the amount of liquid is confirmed.

Further, the shaft-like member 11 protruding from the communication hole 7
It is possible to directly visually check the amount of protrusion of the scale 12 or the shaft-shaped member 11 from the communication hole 7 attached to the check mark, and it is easier to check the liquid amount than in the conventional technique using the transparent tube 8. That is, in the conventional apparatus shown in FIG. 5, the washer liquid 4 is confirmed through the transparent tube 8, and it may be difficult to confirm it due to the adhesion of dirt, but this embodiment causes such a problem. It is possible to easily confirm the liquid amount without Further, even if the washer liquid 4 is transparent, the confirmation of the liquid amount can be surely achieved.

In the conventional device shown in FIG. 5, the transparent tube 8
However, in this embodiment, when the sub cap 16 is opened, the amount of protrusion of the float 9 that protrudes from the communication hole 7 due to the buoyant force of the float 9 is compared to this. Since the remaining amount of the washer liquid 4 is measured by measuring, the influence of the deterioration of the parts is small and it can be used semipermanently.

In this embodiment, since the disc-shaped member 13 having a larger diameter than that of the shaft-shaped member 11 is provided above the shaft-shaped member 11, the float 9 is pushed down before the sub-cap 16 is closed. At this time, the disc-shaped member 13 can be used, and the pushing-down operation can be easily performed. Further, the disc-shaped member 13 can come into contact with the cap 6 to serve as a stopper.

[0023]

Since the present invention is the washer tank liquid amount confirmation device configured as described above, the amount of protrusion of the float protruding from the communication hole by the buoyancy of the float when the sub cap is opened is measured. Since the remaining amount of the washer liquid is checked, it can be used semi-permanently with little influence of deterioration of parts. Furthermore, the liquid amount can be confirmed more easily than in the prior art in which the position of the float is checked by looking through the inlet to confirm the liquid amount. Further, the amount of liquid can be confirmed by directly visually observing the float protruding from the communication hole, which is easier to confirm than in the conventional technique using a transparent tube.

[Brief description of drawings]

FIG. 1 is a perspective view showing a liquid amount confirmation device in a washer tank according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a cross-sectional view showing the operation of the device.

FIG. 4 is a perspective view showing an example of a conventional liquid amount confirmation device in a washer tank.

FIG. 5 is a perspective view showing another conventional example of the liquid amount confirmation device in the washer tank.

[Explanation of symbols]

 1 Washer tank 4 Washer liquid 5 Injection port 6 Cap 7 Communication hole 9 Float 16 Sub cap

Claims (1)

[Claims] 1. A cap that covers an inlet of a washer tank that stores washer liquid is formed with a communication hole that communicates the inside and outside of the washer tank, and a shaft-like float that floats on the washer liquid is vertically moved in the communication hole. Insert as much as possible,
A device for confirming a liquid amount in a washer tank, wherein the cap is provided with a sub-cap that opens and closes the communication hole.