JPS63229021A - Dust display apparatus of electric 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 Field of the Invention The present invention relates to a display device for notifying the presence or absence of dirt on a floor surface to be sucked up while a vacuum cleaner is in use.

BACKGROUND OF THE INVENTION Conventionally, this type of display device has been constructed as shown in FIGS. 4 and 5, with a pipe 3 disposed at the tip of a hose 2 connected to a vacuum cleaner body 1 having a built-in electric blower. A display device 4 is provided. This display device 4 includes a light emitting body 6 and a light receiving body 7 facing each other via an intrapipe air passage 6 of a pipe 3.
When the vacuum cleaner is in operation, the switch 8 is turned on and the light emitting body 6 is turned on by the battery 9, and the air is sucked from the cleaning surface 1o and the air passage 6 in the pipe is drawn into the vacuum cleaner main body 1.
The structure is such that the amount of light from the light emitting body 6 that reaches the photoreceptor 7 changes depending on the dust 11 heading toward the light receiving body 7.

The photoreceptor 7 is interposed in series in a closed circuit between the display 12 and the battery 9, and when the cleaning surface 10 is cleared of dust, the dust 11 passes in front of the photoreceptor 7 in the pipe air passage 5. When the amount of light is exhausted, the amount of light received by the photoreceptor 7 increases, the electrical resistance of the photoreceptor 7 decreases, and the indicator 12 lights up, making it possible to detect that the cleaning has been completed (for example,
21819).

Inventive power; problem to be solved In such a conventional configuration, if dust adheres to the light emitter 6 or the photoreceptor 7, the actual amount of light received by the photoreceptor 7 will decrease. Even in a state where the dust 11 is no longer being sucked in, there is a problem in that the resistance value of the photoreceptor 7 does not decrease in step 1 of turning on the display body 12, and correct display cannot be performed.

SUMMARY OF THE INVENTION The present invention provides a dust display device that can easily clean and clean dirty surfaces so that even if dust adheres to a light emitter or a photoreceptor, accurate display can be made.

Means for Solving the Problems The garbage display device of the present invention is configured so that the amount of light from the light emitter that reaches the photoreceptor changes depending on the amount of garbage passing through the pipe provided at one end of the hose, which is the suction passage for the garbage. A wiping body for cleaning the surfaces of the light emitting body and the light receiving body is provided in the pipe, and the wiping body is configured to be moved within the pipe by attaching and detaching the extension tube. .

Function According to the above configuration, each time an extension tube or various nozzles are attached or detached from the pipe provided at one end of the hose for cleaning, the wiping body inside the pipe also moves to clean the surfaces of the light emitting body and the light receiving body. Therefore, when it is used, there is always no dust attached, and the dust display is stable.

EXAMPLE Hereinafter, an example of the present invention will be described based on FIGS. 1 to 3.

Components having the same functions as those shown in FIGS. 4 and 5 will be described with the same reference numerals.

A light emitter 6 and a light receiver 7 are disposed at the end of a pipe 3 at the tip of a hose 2 connected to a vacuum cleaner body 1 so as to face each other with an intrapipe air passage 5 as a suction path interposed therebetween. Luminous body 6
is supplied with electricity from a battery 9 via a switch 8, and the photoreceptor 7 is connected to a display 12.

At the end of the pipe 3 is an extension pipe 13. The floor nozzle 14 and the like are removably inserted, and the floor surface is cleaned in this state.

Reference numeral 15 denotes a wiping body disposed in the pipe air passage 5 which is the fitting end of the pipe 3 with the extension pipe 13, and having a brush etc. arranged on its outer periphery, and is formed in an annular shape and is connected to the light emitting body 6. The wiping body is slid on the surface of the photoreceptor 7 to clean the surface.

Reference numeral 16 denotes a spring body that urges the wiping body 15 toward the end of the pipe 3. Its both ends are held by the wiping body 15 and the pipe 3. When the extension pipe 13 is connected to the pipe 3, the wiping body 15 When it is moved to the back of the pipe 3 and disconnected, it returns to its original position under the force of the spring body 16, and during this reciprocation, the surfaces of the light emitting body 6 and the light receiving body 7 are cleaned with the brush of the wiping body 15. .

Reference numeral 17 denotes a window provided in the wiping body 15. When the extension tube 13 is connected to the pipe 3 and the wiping body 15 is moved to the back, the window 1 is opened.
7 is located between the light emitter 6 and the light receiver 7, and the light from the light emitter 6 is transmitted through the window 17 and transmitted to the light receiver 7.

Note that even when the extension tube 13 is not connected, the wiping body 15 is arranged so as not to block the light from the light emitter 6.

Next, the operation will be explained.

To use the vacuum cleaner main body 1, after connecting the extension tube 13 and the floor nozzle 14, operate the vacuum cleaner main body 1, lift the floor nozzle 14 from the cleaning surface 10, and turn on the switch 8. Since the dust 11 does not pass between the light emitter 6 and the photoreceptor 7, the light from the light emitter 6 reaches the photoreceptor 7 as it is, and the indicator 12 remains lit.

Next, when the floor nozzle 14 is applied to the cleaning surface 10 and suction of the dust 11 is started, the dust 11 passes between the light emitting body 6 and the light receptor 7 toward the cleaner body 1 and reaches the light receptor 7. Since the amount of light changes moment by moment and the brightness of the display 12 changes, the user can confirm that he/she is inhaling 1 soda of garbage.

As the cleaning progresses and the dust 11 on the cleaning surface 1o disappears, the display 12 returns to its initial lighting state again.

Incidentally, the light emitter 6 and the photoreceptor 7 are located in the pipe 3's internal air passage 5, and fine dust adheres to the air passage including the pipe 3. In particular, static electricity is easily generated due to airflow, and since the pipe 3 is an insulator, dust tends to adhere to it.Also, if moisture-containing dust adheres, it cannot be removed by airflow alone, and the light from the light emitter 6 is always blocked. The display device 12 will no longer function properly.

However, as described in the configuration of the present application, the surfaces of the light emitting body 6 and the light receiving body 7 are constantly cleaned by attaching and detaching the extension tube 13 every time they are used, so the above-mentioned condition does not occur and the function of the display device 12 is fully performed. It is something.

The light emitter 6 and the photoreceptor 7 are arranged at the end of the pipe 3, so that the user can easily clean them if they become extremely dirty.

In addition, in the above configuration, attachment to and detachment from the pipe 3 is performed using the extension pipe 13.
As explained in , there is a nozzle for pipe 3 on pipe 3.

A gap nozzle (not shown) is often directly connected and used, and even in this case, the wiping body 15 operates normally to clean the surfaces of the light emitting body 6 and the light receiving body 70.

Effects of the Invention As described above, the dust display device of the present invention constantly cleans the surfaces of the light emitting body and the light receiving body by attaching and detaching the extension tube each time it is used.
The present invention provides a vacuum cleaner with an accurate display function.

Further, by disposing the wiping body on the pipe, cleaning can be performed even when the pipe is directly connected to the drain nozzle and the gap nozzle, which is of great practical value.

[Brief explanation of drawings]

Fig. 1 is a vertical cross-sectional view of a pipe showing an embodiment of the present invention, Fig. 2 is a cross-sectional view thereof, Fig. 3 is a perspective view of a wiping body, and Fig. 4 is an overall perspective view of a conventional vacuum cleaner. 6 are electrical circuit diagrams of a conventional display device. 1...Vacuum cleaner body, 3...Pipe, 6...
...Pipe ventilation path, 6... Luminous body, 7...
...Photoreceptor, 13...Extension tube, 15...
Wiping body, 16... main body, 17... window section. Name of agent: Patent attorney Toshio Nakao and 1 other person3-
Pipe 5 - Pipe ventilation 6 - Luminous body 7 - Receptacle 1 13 - Extension 1 15 - Wiping 16 - Panay I 7 - Window, Fig. 1 Fig. 2

Claims (1)

[Claims] A hose is attached to the main body of the vacuum cleaner, an extension tube is attached to a pipe at one end of the hose, and a floor nozzle is detachably connected to the extension tube. A sensor section configured to change the amount of light from the light emitter reaching the light receiver depending on the dust passing through the pipe, and a wiping body for cleaning the surfaces of the light emitter and the light receiver inside the pipe, A garbage display device for a vacuum cleaner that has a handle that moves within the pipe by attaching and detaching an extension tube.