JP3185326B2 - Electric vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to relates to the industrial and vacuum cleaner for home use.

[0002]

2. Description of the Related Art Generally, an electric vacuum cleaner is cleaned while pulling a heavy vacuum cleaner body, and therefore, there is a demand for improved operability.

Conventionally, this type of vacuum cleaner has a blower motor and a dust collector, and the hose is sucked on the floor surface by a floor suction tool provided at the end of a hose connected to the main body of the vacuum cleaner. The cleaning was performed by moving the vacuum cleaner body connected to the hose while moving the cleaner.

[0004]

In such a conventional structure, the user has to move the hose while operating the hose while pulling the main body of the vacuum cleaner, thereby improving cleaning efficiency and operability. There was a problem that was not.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to improve the operability in a compact manner by using left and right wheels of a vacuum cleaner body as motors.

[0006]

In order to achieve this object, the present invention uses out-rotor motors for left and right wheels, respectively, and uses the out-rotor motors directly as wheels.

The left and right wheels rotate in the same direction or in opposite directions.

Further, switches are provided on the left and right of the vacuum cleaner main body in contact with a hose at an air inlet, so as to control the rotation of the out rotor motor.

[0009]

According to the present invention, since the out rotor of the out rotor motor is directly used for the wheel in the above construction, when the vacuum cleaner body is moved while the hose is being pulled for cleaning, the hose is not used. The pulling direction switch is activated, the wheels rotate and move on their own, and stop when there is no more pulling force on the hose.

Since the left and right wheels rotate in the same direction or in opposite directions, respectively, the vehicle can move forward or rotate on the spot.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1, the vacuum cleaner main body 1 has a built-in blower motor 8 and a dust collector 7, and is supported by a left wheel 3A and a right wheel 3B. The left and right wheels 3A, 3B
Are the out rotors of the left and right out rotor motors 9A and 9B, respectively.

The hose 2 is connected to the suction port 10 of the vacuum cleaner main body 1.
Left switch 4A near the insertion port of the hose 2.
And a right switch 4B.

FIG. 2 is a block diagram of a control system of the traveling device. As shown in the figure, the motor drive switching circuit 6 determines the rotation and the rotation direction of the left and right out rotor motors 9A and 9B based on signals from the left and right switches 4A and 4B. Left and right motor drive circuits 5A and 5B are left and right out rotor motors 9A and 9B
The power supply is controlled.

The operation of the traveling device for a vacuum cleaner constructed as described above will be described below. First, hose 2
Are pulled forward, both the left and right switches 4A, 4B operate, and the left and right out rotor motors 9A, 9B also rotate in the same direction. As a result, the vacuum cleaner main body 1 moves forward, and when the hose 2 is no longer pulled, the left and right out rotor motors 9A and 9B stop.

Next, when one of the hoses 2 is pulled, for example, in a direction in which the switch 4A operates, the left out rotor motor 9A rotates forward and the right out rotor motor 9A rotates.
B reverses.

As a result, the vacuum cleaner main body 1 rotates on the spot, and the left and right out rotor motors 9A and 9B stop when the external force from the hose 2 is removed.

Since the out rotors of the out rotor motors 9A and 9B are the wheels 3A and 3B, no special mechanical drive system is required.

As described above, according to the present embodiment, the out rotor motors 9A and 9B are disposed on the left and right of the vacuum cleaner main body 1, and the out rotors of the out rotor motors 9A and 9B are directly used as the wheels 3A and 3B. This eliminates the need for a mechanical drive system for traveling and makes the vacuum cleaner main body 1 compact.

The direction in which the hose 2 is pulled is detected by the switches 4A and 4B, and the out rotor motors 9A and 9B are detected.
The rotation of B can be controlled.

Further, by rotating the out-rotor motors 9A and 9B in the normal direction or in the reverse direction, the operability and the small turning property of the vacuum cleaner main body 1 are improved.

[0022]

As is apparent from the above description of the embodiment, according to the present invention, the out rotor motors are disposed on the left and right sides of the vacuum cleaner main body, and the out rotors of the out rotor motor are directly wheels. Thus, a mechanical drive system for traveling is not required, and the main body of the vacuum cleaner can be made compact.

The direction in which the hose is pulled can be detected by a switch to control the rotation of the out rotor motor.

Further, by rotating the out-rotor motors forward or backward with respect to each other, the operability and small turning property of the vacuum cleaner main body can be improved, and the operability can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of a vacuum cleaner according to one embodiment of the present invention.

FIG. 2 is a block diagram showing a control system of the traveling device of the electric vacuum cleaner.

[Explanation of symbols]

 3A Left wheel 3B Right wheel 9A Left out rotor motor 9B Right out rotor motor

Claims (3)

(57) [Claims] 1. An electric vacuum cleaner comprising an outer rotor motor disposed on left and right sides of a main body of the electric vacuum cleaner, wherein an out rotor of the outer rotor motor is used as a wheel . 2. The vacuum cleaner according to claim 1, wherein the left and right out-rotor motors have the same or opposite rotation directions . 3. The vacuum cleaner according to claim 1, further comprising switch means for controlling rotation of the out-rotor motor at left and right portions where the hose comes into contact with the hose of the intake port .