JPH04272735A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To offer the vacuum cleaner provided with a floor nozzle which can control exactly suction force in accordance with whether the quantity of dust is large or small. CONSTITUTION:The vacuum cleaner is constituted so that a floor nozzle is constituted of a sub-nozzle 2 and a main nozzle 3, the sub-nozzle 2 is provided in front of the main nozzle 3, and also, the dust quantity sucked by the sub- nozzle 2 is sensed by a sensor 4 provided on the downstream of the sub-nozzle 2, and by its dust quantity, suction force of the main nozzle 3 is controlled.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner that controls suction force.

0002

2. Description of the Related Art In recent years, some vacuum cleaners detect the amount of dust with a sensor and automatically control the suction force to enable efficient cleaning work. An example of this will be explained with reference to FIG. 3.

As shown in the figure, 10 has an electric motor 12 inside.
The main body 10 is equipped with a hose 13 and is connected to an extension pipe 14 and a floor nozzle 15. Further, a pair of infrared transmitting section and a receiving section are disposed inside the handle section 13A of the hose 13, and the amount of dust passing between them is sensed and the signal wire inside the hose 13 is sent to the electric motor 12 of the main body 10. This is to control the input and the suction force.

0004

[Problems to be Solved by the Invention] With conventional vacuum cleaners that detect the amount of dust with a sensor in the handle part 13A and automatically control the suction force, it is difficult to use vacuum cleaner robots that perform automatic cleaning. If you do, the following problems may occur:

[0005] Vacuum cleaner robots are powered by batteries, so there is a limit to how long they can be used, and cleaning the same area over and over again, as is done with regular vacuum cleaners, reduces the cleaning area. .

[0006] For this reason, it is efficient to avoid cleaning a place once again, but if the conventional method detects the amount of dust with a sensor and automatically controls the suction force, the detected place will not be cleaned again. As a result, automatic control of the suction force in areas with a lot of dust and places with a little dust becomes meaningless.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a vacuum cleaner equipped with a floor nozzle that can accurately control the suction force depending on the amount of dust even when used in a vacuum cleaner robot.

[0008]

[Means for Solving the Problems] In order to achieve the above object, the present invention comprises a floor nozzle consisting of a sub nozzle and a main nozzle, the sub nozzle is arranged in front of the main nozzle, and the sub nozzle sucks air. The amount of dust is sensed by a sensor, and the suction force of the main nozzle is controlled based on the amount of dust.

Furthermore, the floor nozzle is constructed by separating a sub nozzle and a main nozzle, with the sub nozzle provided at the front of the vacuum cleaner and the main nozzle provided at the rear.

0010

[Operation] With the above-described configuration, the present invention can control the suction force of the main nozzle by sensing the amount of dust in the cleaning place to be moved to in advance with a sensor using the front sub-nozzle.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

As shown in FIG. 1, the floor nozzle 1 is composed of a sub-nozzle 2 at the front and a main nozzle 3 at the rear.The air flow path of the sub-nozzle 2 has a pair of infrared transmitting sections and a receiving section. Sensor 4 is installed. This sensor 4 detects the amount of dust and the vacuum cleaner's electric blower (not shown)
Automatically control input.

FIG. 2 shows a vacuum cleaner robot 5 having a built-in electric blower 6, etc., with a floor nozzle 1A and a sub-nozzle 2A at the front.
A main nozzle 3A is separately arranged at the rear.

[0014]

[Effects of the Invention] As is clear from the above embodiments, the vacuum cleaner of the present invention uses a sensor to detect the amount of dust at the cleaning place to be moved to in advance using the front sub-nozzle.
The suction force of the main nozzle can be controlled.

[0015] Therefore, when applied to a vacuum cleaner robot,
It can be cleaned efficiently without having to clean the same area over and over again, and since it is powered by batteries, it can be used for a longer period of time.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a floor nozzle of a vacuum cleaner according to an embodiment of the present invention.

[Figure 2] External view of a vacuum cleaner robot with separate sub-nozzle and main nozzle on the same floor

[Figure 3] (a) is an external view of a conventional vacuum cleaner; (b) is an enlarged sectional view of part A of the same handle;

[Explanation of symbols]

1,1A floor nozzle 2,2A Sub nozzle 3,3A Main nozzle 4 Sensor

Claims (2)

[Claims] 1. An electric motor and a floor nozzle, the floor nozzle is composed of a sub nozzle and a main nozzle, the sub nozzle is disposed in front of the main nozzle, and a sensor measures the amount of dust sucked in by the sub nozzle. The vacuum cleaner detects the amount of dust and controls the suction force of the main nozzle according to the amount of dust detected. 2. The vacuum cleaner according to claim 1, wherein the floor nozzle is constructed by separating a sub nozzle and a main nozzle, and the sub nozzle is provided at the front of the vacuum cleaner and the main nozzle is provided at the rear.