JPS59192333A - Dust collecting amount display apparatus of vacuum cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a dust collection amount display device for a vacuum cleaner, which displays the amount of dust collected by operating a pointer based on the pressure difference between the atmosphere and the suction side of a fan motor. O Structure of the conventional example and its problems In the conventional device of this kind, the amount of collected dust was displayed only by the movement of the pointer. However, with this configuration, it was difficult to see the movement of the pointer, which was very inconvenient. It is still being considered to shine the light of a lamp from the outside of the transparent pipe that houses the pointer, but with this type, the entire pipe would shine depending on how the light hit it, making it difficult to see the finger sticks.

OBJECTS OF THE INVENTION The present invention eliminates these conventional drawbacks and aims to make the display clearer.

Structure of the Invention The dust collection amount display device for a vacuum cleaner of the present invention is slidably provided in the pipe with one end spaced between the lower end of the filter and the suction side of the fan motor, and a pointer for opening and closing the valve seat. and a spring that biases the pointer toward the valve seat,
Furthermore, the valve seat is equipped with a lamp that protrudes into the pipe, and a hollow for housing the lamp is formed in the axial direction of the pointer, having an open portion at least at the end face on the valve seat side.

Therefore, when the pointer moves, the amount of movement is indicated by the light of the lamp exposed outside the pointer, that is, the length of the light band.

Description of examples Examples thereof will be described below with reference to the accompanying drawings.

In the figure, 1 is the main body with a built-in fan motor 2, 3
is a dust collection case detachably connected to the front part of the main body 1, that is, the suction side of the fan motor 2, and the filter 4
has. The main body 1 is provided with a rear wheel 5 and a handle 6, and the dust collection case 3 is provided with a front wheel 7 and a handle 8. 9 is a transparent pipe installed inside the handle 〇 of main body 1,
One end thereof communicates with a space 11 between the lower end of the filter 4 and the suction side of the fan motor 2 through an elbow 10, and the other end is open to the atmosphere through a hole 12 in the handle. 13 is a valve seat which is covered with the end side of the pipe 9 that is open to the atmosphere and has a valve port 14 formed at a position off the center; 15 is a lamp inserted into the center line of the pipe 9; is attached to the center of the valve seat 13.

16 is slidably inserted into the pipe 9 with a gap,
A hollow 1 for storing a lamp, which is a pointer for opening and closing the valve port 14 of the valve seat 13, and has an opening on the end face on the valve seat 13 side.
7 is formed in the central axis direction.

18 is a spring that urges the pointer 16 toward the valve seat 13; 19 is a display window formed in a part of the handle 0 facing the pipe 9;

In the above configuration, the circuit is configured so that the lamp 9 is ignited when the vacuum cleaner is operated. However, under normal conditions, the pointer 16 is moved toward the valve port by the action of the spring 18 as shown in FIG.
4 is in contact with the valve seat 13 as if closing the hollow 1
Since the lamp 9 is located at 7, its light is blocked.

Next, when the amount of dust collected in the dust collecting case 3 increases and the pressure in the space 11 decreases to a certain value, the pointer 16 slides away from the valve seat 13 against the spring 18. However, the valve port 14 is opened, and outside air is introduced into the fan motor 2 through the hole 12, the valve hole 14, the pipe 9, and the elbow 10.
At the same time, the lamp 9 is exposed from the phase opening 16 and its status is displayed by light.

The phase opening 16 gradually moves away from the valve seat 13 according to the degree of pressure drop in the space 11, and the amount of exposure of the lamp 9 increases accordingly (FIG. 3).

As described above, the user can accurately know the amount of dust collected from the amount of exposure of the lamp 9, in other words, from the change in the length of the light band.

In addition, in the above embodiment, the lamp is turned on during operation, but from the viewpoint of energy saving, it is also possible to provide a switch that responds to the phase opening movement and turn on the lamp when the same guideline starts to operate. .

Effects of the Invention As described above, according to the present invention, since the amount of collected dust is displayed by changing the length of the light zone, the display is very clear, and the effects are outstanding.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway sectional view of a vacuum cleaner showing an embodiment of the present invention, FIG. 2 is a sectional view of a dust collection amount display section, and FIG. 3 is a sectional view of the vacuum cleaner for explaining the operation. 2-...Fan motor, 4...Filter, 9...Pipe, 13...Valve seat, 15
······lamp. 16...Pointer, 17...Hollow, 18...
...Spring ○ Name of agent Patent attorney Toshio Nakao and 1 other person 1st
Figure 2 Figure 3

Claims (1)

[Claims] a transparent pipe with one end communicating with the atmosphere between the lower end of the filter and the suction side of the fan motor, and a valve seat attached to one end of the pipe communicating with the atmosphere;
It is slidably provided in the pipe with a gap, and is equipped with a pointer that opens and closes the valve seat, and a spring that biases the pointer toward the valve seat. A dust collection amount display device for a vacuum cleaner, in which a lamp is attached and a hollow space for housing the lamp is formed in the axial direction of the pointer, having an open portion at least on the end face on the valve seat side.