JPH02152421A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To control the rotation of an agitator automatically and improve operating property by setting a floor surface sensor for detecting the state of a floor surface, as electromotive voltage induced to a detecting coil by the vertical fluctuation of a magnet due to the vertical oscillation of a roller, and by controlling a motor with the output of the floor surface sensor. CONSTITUTION:A floor suction device 5 containing an agitator and a driving motor is provided with a vertically movable running roller 6. On the bearing shaft of the roller 6, a magnet 7 is fixed, and the outer periphery of a space for the magnet 7 moving vertically is wound up with a detecting coil 8. Then, the change due to the vertical motion of the roller 6 is detected as electromotive voltage induced to the detecting coil 8 due to the fluctuation of the magnet 7. Then, the input of the output of the detecting coil 8 to a level detector 11 via an amplifier 10 is provided, and the rugged state of a floor surface is detected. When the floor surface is flat, then the fluctuation of the magnet 7 is reduced, and the output of the level detector 11 comes to a level equal to or lower than a set level, and a bidirectional thyristor 13 is turned OFF, and the power condition of a motor 14 is cut. Besides, when the rugged section of the floor surface is large due to a carpet or the like, then the output of the level detector 11 is also made greater, and the bidirectional thyristor 13 is turned ON, and the agitator is controlled to be rotated.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a floor suction device for electric cleaning, particularly for electric 4mWIN machines.

Conventional technology Hereinafter, a conventional vacuum cleaner will be explained based on the drawings.

FIG. 3 is a schematic diagram of a conventional vacuum cleaner.

In FIG. 3, reference numeral 1 denotes a cleaning body, and a hose 3 is connected to the cleaning body 1, the end of which is a hand-operated unit 4 to which a floor suction tool 2 is attached.

In addition, the floor suction tool 2 has a built-in agitator and an electric motor that drives the agitator, and a hand control section 4 at the tip of the boss 3 is provided with an on/off switch 4A for the electric power #J machine. By turning on and off the switch 4A of the hand control unit 4, the power line of the electric jammer sucked into the floor suction device 2 from the cleaning body 1 via the hose 3 is opened and closed, and the agitator which is driven by the electric motor is connected. is configured to be turned on and off.

However, according to the above-mentioned conventional configuration, the user has to turn on and off the agitator with the switch 4A depending on the condition of the floor surface (carpet, floor, tatami mat, etc.). was extremely troublesome. Additionally, some users may clean the carpet without turning the dust cleaner on the carpet, and there is also the problem that the dust collection performance deteriorates depending on how it is used.

Furthermore, in addition to the on/off switch 4A for the agitator's electric motor, some of the hand-operated parts 4 have a grip function to change the suction power of the vacuum cleaner and a separate display surface, which causes the problem of complicating the operation. It was right.

The present invention solves the above problem, and provides a vacuum cleaner in which a motorized floor suction device has a built-in floor sensor that detects the condition of the floor surface, and automatically controls the rotation of the agitator according to the floor surface. The purpose is to provide the following.

Means for Solving the Problems In order to solve the above problems, this article describes an electric cleaning device equipped with a floor suction tool that connects an agitator driven by an electric motor. A running roller that can move up and down is installed on the bottom, a magnet is fixed on the spindle of the roller, and a detection coil is wound around the outer circumference of the space where the magnet moves up and down to detect the condition of the floor surface. , a floor sensor is provided which detects the electromotive force induced in the detection coil due to the vertical fluctuation of the magnet due to the vertical vibration of the roller, and the voltage is detected by the output of the floor sensor. 1Jt1.

Effect With the above configuration, the floor sensor detects the uneven state of the floor by converting the vertical vibration of the roller into a change in electrical signal using a magnet and a detection coil, and the agitator is rotated by the output of the floor sensor. is controlled according to the condition of the floor surface. Therefore, the user does not have to manually control the agitator according to the condition of the floor surface, and the operability is improved.

Example Hereinafter, one embodiment of the present invention will be described based on the drawings.

1(a) and fb) are a side view tB and a partially enlarged sectional view of a floor suction tool of a vacuum cleaner according to an embodiment of the present invention.

In FIGS. 1(a) and 1(b), numeral 5 is a floor suction tool that has a built-in agitator and a K vJII that drives the agitator, and the floor suction tool 5 has a running unit that can move up and down. A roller 6 is provided. A magnet 7 is fixed on the spindle of the roller 6, and the magnet 7 moves up and down! I.J.
! A detection coil 8 is wound around the outer periphery of the space #'. Further, the roller 6 is pressed downward by a bicep 9.

FIG. 2 shows a block diagram of the power control unit 111'7A of the vacuum cleaner according to the present invention. In FIG. 2, the change due to the vertical movement of the roller 6 is detected as an electromotive force induced in the detection coil 8 due to the fluctuation of the magnet 7 in the detection coil 8, and the output of the detection coil 8 is leveled via an intensifier 10. Detector 1
1, and the uneven state of the floor surface is detected by the level detector 11. The output of the level detector 11 is input to a phase control circuit 12, which controls the phase of the bidirectional thyristor 13 according to the unevenness of the floor surface.
The electric power of the electric motor 14 that drives the agitator connected in series with the bidirectional thyristor 13 to the AC power source is restricted.

According to the above configuration, when the floor surface is flat (wooden floor, astile, etc.), there is little variation in the magnet 7 because there are no unevenness on the floor surface, and the output of the level detector 11 is below the set level, so that it can be used in both directions. The thyristor 13 is turned off, and the energization of the electric motor V114 is cut off. Further, when the body surface is made of a carpet or the like and has large irregularities, the output of the level detector 11 becomes large, the phase control circuit 12 turns on the bidirectional thyristor 13, and the agitator is controlled to rotate.

In this way, the rotation of the agitator can be automatically controlled depending on the state of the spherical surface, eliminating the need for the user to control the agitator with fIIll according to the state of the floor surface, improving operability. can be greatly improved.

Effect of explanation As described above, according to the present invention, horse mackerel 7
-Automatically control the rotation of the motor? 1', the user no longer has to manually change the state of the floor surface, which was the case in the past, and the operability can be greatly improved. In addition, even on a flat floor, if the user wants to rotate the agitator according to his/her preference, the agitator can be rotated simply by applying vibration to the floor suction device. If the rollers are left rotating, the rollers will no longer fluctuate and can be automatically stopped, which has great practical value.

[Brief explanation of the drawing]

FIGS. 1(a) and 1(b) show an embodiment of this Bimei; a side view and a partially enlarged sectional view of a floor suction device of a V electric crusher;
FIG. 2 is a block diagram of the electric power illumination device of the electric lifting machine, and FIG. 3 is a schematic diagram of the conventional electric lifting machine. 5... Floor suction tool, 6... Roller, 7... Magnet,
8...Detection: 1il, 14...Electric motor (driving the agitator). Agent Hiroshi Moriki! (a) 5 Yasushi F @ Screw tool 6 ・Roller 7 - Magnet B - Dredge film q-c coil? Figure 3

Claims (1)

[Claims] 1. A vacuum cleaner equipped with a floor suction device having an agitator driven by an electric motor, wherein a running roller that can move up and down is provided on the bottom of the floor suction device, and is fixed on a spindle of this roller. It has a magnet and a detection coil wound around the outer periphery of a space in which the magnet moves up and down, and detects the state of the floor by an electromotive force induced in the detection coil by the vertical fluctuation of the magnet caused by the vertical vibration of the roller. What is claimed is: 1. A vacuum cleaner, comprising: a floor sensor for detecting a floor surface; the electric motor is controlled by an output of the floor sensor;