JPH0591962A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To prevent the suction force from dropping due to dust strongly adhering on a dust bag. CONSTITUTION:A vibrating means 13 is operated by a controller 17 to remove dust adhering on a face (a) of a dust bag 12 facing a communication hole 6 of a bulkhead 7 of a cleaner body 1. Therefore, the face (a) is hit by the vibrating means 13 and dust strongly adhering on the face (a) of the dust bag 12 facing the suction port of an electric fan 9 is removed, so that the suction force is prevented from declining.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a domestic electric vacuum cleaner having a dust collecting means for removing dust.

[0002]

2. Description of the Related Art The structure of a conventional electric vacuum cleaner will be described below with reference to FIGS.

In FIG. 3, 1 is a cleaner body, 2 is a hose, 3 is an extension pipe, 4 is a floor suction tool, and 5 is a suction port of the cleaner body 1.

In FIG. 4, the cleaning main body 1 is divided into a front and a rear by a partition wall 7 having a communication hole 6, and a dust collection chamber 8 is installed in a front part thereof and an electric blower 9 is installed in a rear part thereof. 10 is formed. A suction port 11 for sucking dust is provided in the dust collection chamber 8 and communicates with a dust bag 12 that is detachably mounted in the dust collection chamber 8.

In the above structure, when the electric blower 9 is operated, a low pressure is generated in the dust collecting chamber 8, and the inside of the dust collecting chamber 8 is passed through the floor suction tool 4, the extension pipe 3, the hose 2, and the suction port 11. Dust is accumulated in the dust collecting bag 12 of.

Here, when the dust is sucked into the dust collecting bag 12, if the suction force of the electric blower 9 is strong, the dust strongly adheres to the surface a of the dust collecting bag 12 facing the communication hole 6 of the partition wall 7. There was something. Further, in the recent electric vacuum cleaner, since the electric motor room 10 is placed downward and the main body 1 of the vacuum cleaner is stood up for storage during storage, dust in the dust collecting bag 12 easily adheres to the surface a. It was

[0007]

In the vacuum cleaner having such a conventional structure, the dust collecting bag 1 facing the communication hole 6 of the partition wall 7 is provided.
Since the dust strongly adheres to the second surface a, that is, the intake port of the electric blower 9, there is a problem that the suction force of the electric vacuum cleaner decreases. By the way, as a means for removing the dust adhering to the dust collecting bag, for example, one shown in Japanese Patent Publication No. 22797/1978 is known. However, this is simply to give vibration to the dust collecting bag to remove dust, and the above-mentioned problem has not been taken into consideration.

The present invention solves the above problems and provides an electric vacuum cleaner capable of removing dust adhering to the surface of a dust collecting bag facing the intake port of an electric blower to prevent a reduction in suction force. It is intended to be provided.

[0009]

In order to achieve the above object, the present invention provides a dust collecting chamber and an electric blower chamber which are formed by partitioning the inside of the main body with a partition having a communication hole, and the dust collecting chamber. A suction port provided in, a dust bag detachably mounted in the dust collection chamber, dust removing means for removing dust adhering to the surface of the dust bag facing the communication hole of the partition wall, And a control means for controlling the dust removing means.

[0010]

As described above, the present invention provides the electric vacuum cleaner by providing the dust removing means for removing the dust adhering to the surface of the dust collecting bag facing the communication hole of the partition wall and the control means for controlling the dust removing means. It is possible to remove dust adhering to the surface of the dust collecting bag facing the air intake portion, and prevent a decrease in suction force.

[0011]

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

The same parts as those shown in the conventional example are designated by the same reference numerals, and the description thereof will be omitted. FIG. 1 shows a first embodiment of the present invention. In FIG. 1, 13 is a vibrator which is a dust removing means provided upright on the cleaner body 1, and a vibrating surface 13a at the tip thereof communicates with the partition wall 7. It faces the outer surface of the surface a of the dust collecting bag 12 facing the hole 6. Reference numeral 14 denotes an electromagnet formed by a coil 15 and a core 16, which is arranged close to the vibrator 13 and vibrates the vibrator 13 by a magnetic field. Reference numeral 17 is a control means for controlling the current flowing through the coil 15, and 18 is a switch means for operating the control means 17.

In the above structure, dust is accumulated in the dust collecting bag 12 by using the electric vacuum cleaner, but as described above, the dust collecting bag 1 facing the intake port of the electric blower 9 is used.
Dust adheres strongly to the second surface a, and dust also adheres to the second surface a depending on the posture of the cleaner body 1 when it is housed, and the suction force is reduced.

When such a state occurs, the dust removing means is operated to remove dust. This operation is performed as follows.

A voltage obtained by half-wave rectifying the AC voltage of the power supply is applied to the control means 17, and when a signal is input from the switch means 18 to the control means 14, the control means 17 turns the coil through a built-in resistor. A voltage is applied to 15. The control means 17 is adapted to apply the voltage for an arbitrary predetermined time. Since the applied voltage is a half-wave rectified voltage, the current flowing through the coil 15 is intermittent, and the magnetic field generated by the electromagnet is also intermittent. As a result, the electromagnet 14 repeats attraction and separation of the vibrator 13 to give vibration to the vibrator 13. The vibrator 13 is the dust bag 1
The second surface a is hit to remove dust strongly attached to the surface a.

As described above, according to the first embodiment of the present invention, the tip portion 13a of the vibrator 13 is made to face the outer surface of the surface a of the dust collecting bag 12 which faces the communication hole 6 of the partition wall 7 and the electromagnet 14 is formed. Since the vibrator 13 is vibrated to remove the dust adhering to the surface a, it is possible to prevent the suction force from being lowered due to the dust adhering to the surface a of the dust collecting bag 12. ..

Next, a second embodiment of the present invention will be described with reference to FIG.
Will be described with reference to. In the figure, reference numeral 21 is a motor, and a power transmission means 23 formed in the shape of an eccentric cam is fixed to a rotary shaft 22 thereof. Reference numeral 24 is a dust removing means provided upright on the cleaner body 1. The vibrating surface 24a at the tip of the vibrator faces the outer surface of the surface a of the dust collecting bag 12 facing the communication hole 6 of the partition wall 7, and the bent portion is provided with the protruding portion 24b. The protruding portion 24b is adapted to periodically contact the power transmission means 23. Reference numeral 25 is a control means for controlling the rotation of the motor 21, and 26 is a switch means for operating the control means 25.

In the above structure, when dust adheres strongly to the surface a of the dust collecting bag 12 as in the first embodiment, the dust removing means is operated to remove the dust.

This operation is performed as follows. When a signal is input from the switch means 26 to the control means 25,
The control means 25 is adapted to rotate the motor 21 in the direction shown by the arrow for an arbitrary predetermined time. Motor 2
When 1 rotates, the transmission means 23 causes the protrusion 2 of the vibrator 24 to move.
The pressing and releasing of 4b are periodically repeated to give vibration to the vibrator 24. The vibrating surface 24a of the vibrator 24 strikes the surface a of the dust collecting bag 12 to remove dust adhering to the surface a.

As described above, according to the second embodiment of the present invention, the tip end portion 24a of the vibrator 24 is made to face the outer surface of the surface a of the dust collecting bag 12 facing the communication hole 6 of the partition wall 7 and the motor 21. The vibrator 24 is periodically oscillated by the transmission means 23 fixed to the rotating shaft 22 of the above to remove the dust adhering to the surface a. Therefore, the suction force by the dust adhering to the surface a of the dust bag 12 is increased. It is possible to prevent the decrease of

[0021]

As is apparent from the above description of the embodiments, according to the present invention, the dust removing means for removing dust adhering to the surface of the dust collecting bag facing the communication hole of the partition wall, and the dust removing means are controlled. It is possible to provide the electric vacuum cleaner which can remove the dust adhering to the surface of the dust collecting bag facing the intake portion of the electric blower to prevent the suction force from being lowered by providing the control means.

[Brief description of drawings]

FIG. 1 is a side sectional view of a main part of an electric vacuum cleaner according to a first embodiment of the present invention.

FIG. 2 is a side sectional view of a main part of an electric vacuum cleaner according to a second embodiment of the present invention.

FIG. 3 is a schematic configuration diagram of an electric vacuum cleaner.

FIG. 4 is a side sectional view showing a schematic configuration of a cleaner body of a conventional electric vacuum cleaner.

[Explanation of symbols]

 1 Vacuum Cleaner Main Body 6 Communication Hole 7 Partition 9 Electric Blower 10 Electric Blower Room 11 Suction Port 12 Dust Collection Bag 13, 24 Vibrator 14 Electromagnet 17 Control Means 18 Switch Means 21 Motor 23 Transmission Means

Front page continuation (72) Inventor Yoshitaka Murata 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (3)

[Claims] 1. A dust collection chamber and an electric blower chamber, which are formed by partitioning the inside of the main body into front and rear with a partition having a communication hole, a suction port provided in the dust collection chamber, and detachable in the dust collection chamber. An electric vacuum cleaner comprising: a dust bag to be mounted on a substrate, dust removing means for removing dust adhering to the surface of the dust bag facing the communication hole of the partition wall, and control means for controlling the dust removing means. .. 2. The electric vacuum cleaner according to claim 1, wherein the dust removing means includes an electromagnet including a coil and a core, and a vibrator vibrated by a magnetic field generated by the electromagnet. 3. The electric vacuum cleaner according to claim 1, wherein the dust removing means includes a motor, a vibrator, and a transmitting means for transmitting the power of the motor to the vibrator.