JPH0551232U - Levitation vacuum cleaner - Google Patents

Abstract

(57) [Summary] [Structure] In a levitation type electric vacuum cleaner in which the vacuum cleaner body 1 is levitated by the exhaust of the electric blower 8, the pressure receiving chamber 9 formed in the lower portion of the vacuum cleaner body 1 is A pressure receiving sensor 16 for detecting the pressure is provided, and the pressure receiving sensor 16 controls the appearance of the brush 19 disposed on the outer circumference of the pressure receiving chamber 9. [Effect] During cleaning, the appearance of the brush can be automatically controlled according to the type of the surface to be cleaned, and the usability for the user can be improved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a levitation type electric scavenger that levitates a cleaner body by using the exhaust air of an electric blower.

[0002]

[Prior Art]

 Conventionally, in this type of levitation electric vacuum cleaner, when cleaning the floor surface such as the flooring, a brush is projected on the bottom of the vacuum cleaner body to prevent the floor surface from being scratched by the cleaner body. Also, in order to reduce the resistance when cleaning a carpet or the like, it has been known that the brushes are manually switched depending on the type of the surface to be cleaned so that the brushes are stored.

However, this configuration has a drawback in that workability is poor, because the brush must be switched between protruding and retracting each time the type of surface to be cleaned changes during cleaning.

[0004]

[Problems to be solved by the device]

 The present invention has been made in view of the above-mentioned drawbacks, and an object of the present invention is to provide a levitation electric vacuum cleaner capable of automatically moving a brush in and out according to the type of surface to be cleaned.

[0005]

[Means for Solving the Problems]

 The present invention provides a cleaner body having an electric blower housing chamber for accommodating an electric blower and a dust collecting chamber, a pressure receiving chamber having a lower surface opening formed in a lower portion of the cleaner body, and an exhaust port formed in the pressure receiving chamber. And a brush disposed on the outer periphery of the exhaust port, in which the vacuum cleaner body is levitated by the exhaust of the electric blower supplied to the pressure receiving chamber from the exhaust port, A sensor for detecting the pressure of the brush is provided, and the brush is moved in and out according to the type of the surface to be cleaned by a signal from the sensor.

[0006]

[Action]

 According to the present invention, during cleaning, the air sucked into the vacuum cleaner body is discharged from the exhaust port through the dust collection chamber and the electric blower storage chamber, and the bottom surface of the vacuum cleaner body and the brush come into contact with the floor surface. As a result, the pressure inside the pressure receiving chamber rises and the cleaner body floats.

When the air leakage from the gap between the cleaner body and the floor surface is small and the pressure in the pressure receiving chamber is high, the sensor determines that the surface to be cleaned is the floor surface, and the signal from this sensor determines , The brush is projected downward to prevent scratches on the floor.

Further, when the air leakage from the gap between the cleaner body and the surface to be cleaned is large and the pressure in the pressure receiving chamber is low, the sensor determines that the surface to be cleaned is a carpet, and a signal from this sensor is output. With this, the brush is housed and is flush with the lower surface of the cleaner body.

[0009]

【Example】

 An embodiment of the present invention will be described in detail below with reference to FIGS.

Reference numeral 1 denotes a cleaner body, which is provided with a dust collecting chamber 3 having a dust collecting bag 2 on an upper portion thereof, and the dust collecting bag 2 is detachably attached by a hook body 4. Reference numeral 5 denotes a suction port formed in the dust collecting chamber 3 to which the bellows hose 6 is detachably connected. Reference numeral 7 denotes an electric blower storage chamber provided in the lower part of the dust collection chamber 3 in which an electric blower 8 is stored. Below the electric blower storage chamber 7, there is a bottom opening between the electric blower storage chamber 7 and the floor. The pressure receiving chamber 9 is formed. Reference numeral 10 denotes a cord reel storage portion formed below the dust collecting chamber 3 of the cleaner body 1, and stores the cord reel 11 rotatably.

Reference numeral 12 denotes an exhaust port of a bottom surface opening formed on the outer peripheral portion of the bottom surface of the cleaner main body 1, that is, the outer peripheral portion of the pressure receiving chamber 9, and 13 denotes the electric blower storage chamber 7 and the exhaust port 12. In the exhaust passage formed in communication with each other, the exhaust air of the electric blower 8 is discharged from the exhaust port 12 to the pressure receiving chamber 9 through the exhaust passage 13.

Reference numeral 14 denotes an electronic component storage chamber formed in the pressure receiving chamber 9, which accommodates a substrate 15, and the substrate 15 includes a substrate 15 of the vacuum cleaner body 1 based on a signal from a pressure sensor 16 described later. Electronic components that constitute a control circuit 24 (described later) that controls the suction force are mounted.

Reference numeral 16 denotes a pressure receiving sensor that is arranged in the electronic component storage chamber 14 and detects the pressure in the pressure receiving chamber 9 and detects the type of cleaning surface by this pressure, and outputs a signal to a control circuit 24 described later. It is supposed to do.

Reference numeral 17 denotes a filter arranged around the outer circumference of the exhaust port 12 of the cleaner body 1 and having a function of collecting dust, deodorizing, etc. The exhaust gas discharged from the pressure receiving chamber 9 is discharged to the outside of the pressure receiving chamber 9 through the filter 17. By passing through the filter 17, fine dust in the exhaust is removed, and the exhaust gas is discharged. The bad smell of is deodorized.

Reference numeral 18 denotes a brush mounting recess formed on the outer periphery of the filter 17, and 19 denotes a brush housed in the brush mounting recess 18. The surface of the brush 19 has a low resistance member. The extra-fine brush 20 is attached. Reference numeral 21 is a solenoid disposed in the brush mounting recess 18, which is adapted to move the brush 19 in and out according to the kind of the surface to be cleaned by a signal from the pressure receiving sensor 16.

Reference numeral 22 denotes a substantially arc-shaped bumper that extends from the outer peripheral lower end of the leg mounting recess 18 and has an open upper end. The bumper 22 is deformed so as to absorb a shock at the time of collision with furniture or the like. It is like this.

Next, the circuit will be described with reference to FIG.

Reference numeral 23 denotes a switch circuit, which has a power switch, a power control switch, an automatic / manual changeover switch, etc. (all not shown) formed on a handle portion provided at the tip of the bellows hose 6. ..

Reference numeral 24 denotes a control circuit, which outputs a signal to the drive circuit 25 based on the signals from the pressure receiving sensor 16 and the switch circuit 23 to control the energization of the electric blower 8 and also the main body of the cleaner. The brush 19 arranged in the first brush mounting recess 18 is controlled to move in and out.

During cleaning, the air sucked into the cleaner body 1 is discharged from the exhaust port 12 through the dust collection chamber 3, the electric blower storage chamber 7, and the exhaust passage 13. Since the lower end surface of the cleaner main body 1 and the brush 19 are in contact with the floor surface, the pressure inside the pressure receiving chamber 9 increases, the cleaner main body 1 floats, and the exhaust gas passes through the filter 17 and is discharged.

When the air leakage from the gap between the cleaner body 1 and the floor surface is small and the pressure inside the pressure receiving chamber 9 is high, the pressure receiving sensor 16 determines that the surface to be cleaned is the floor surface, and The solenoid 21 is controlled by a signal from the pressure sensor 16 so that the brush 19 is projected downward to prevent the floor surface from being scratched and the electric blower 8 is driven at a low output.

When the air leakage from the gap between the cleaner body 1 and the surface to be cleaned is large and the pressure in the pressure receiving chamber 9 is low, the pressure receiving sensor 16 determines that the surface to be cleaned is a carpet, and The solenoid 21 is controlled by the signal from the pressure sensor 16 to store the brush 19 in the brush mounting recess 21 so that the brush 19 is substantially flush with the lower surface of the cleaner main body 1 and the electric blower 8 has a high output. Drive.

Furthermore, since the upper end of the bumper 22 is open, even if the cleaner body 1 comes into contact with a household appliance or the like during cleaning, the bumper 22 may be bent to damage furniture or the like. To be prevented.

[0024]

EFFECTS OF THE INVENTION According to the present invention, it is possible to automatically control the appearance of the brush according to the type of the surface to be cleaned, and improve the usability for the user.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a levitation electric vacuum cleaner according to an embodiment of the present invention when cleaning a plate surface.

FIG. 2 is a cross-sectional view of main parts when cleaning the carpet.

FIG. 3 is a circuit diagram of the same.

[Explanation of symbols]

 1 Vacuum cleaner body 3 Dust collection chamber 7 Electric blower storage chamber 8 Electric blower 9 Pressure receiving chamber 12 Exhaust port 16 Pressure receiving sensor (sensor) 19 Brush

Claims (1)

[Scope of utility model registration request] 1. A cleaner body having an electric blower housing chamber for accommodating an electric blower and a dust collecting chamber, a pressure receiving chamber having a lower surface opening formed at a lower portion of the cleaner body, and an exhaust port formed in the pressure receiving chamber. And a brush disposed on the outer circumference of the exhaust port, wherein the pressure in the pressure receiving chamber is a levitation type vacuum cleaner in which the cleaner body is levitated by the exhaust of an electric blower supplied from the exhaust port to the pressure receiving chamber. With a sensor to detect
A levitation type electric vacuum cleaner, wherein the brush is retracted depending on the type of surface to be cleaned by a signal from the sensor.