JPH05305044A - Suction tool for vacuum cleaner - Google Patents

Abstract

PURPOSE:To prevent waste threads from being tangled with a rotary brush, prevent the reduction of the dust collecting capability, and prevent the occurrence of abnormal noises by providing the rotary brush rotatably provided to face the opening provided on the bottom face of a suction tool main body and a brush faced to the rotary brush and inclined in one direction into contact with it. CONSTITUTION:A suction tool is provided with a rotary brush 5 faced to the opening provided on the bottom face of a suction tool main body 1 and a brush 13 faced to the rotary brush 5 and inclined in one direction into contact with it, and the waste threads entangled with the rotary brush 5 are removed by the brush 13. The rotary brush 5 can be rotated positively and reversely. When the suction tool main body 1 is longitudinally moved for cleaning, a rear wheel is rotated, and the rotary brush 5 is rotated in the longitudinal direction via a roller 7, a pulley 8, and a belt 9. When the suction tool 1 is advanced, the waste threads tangled with the brush 13 are removed by the rotary brush 5. When the suction tool 1 is reversed, the waste threads tangled with the rotary brush 5 are ripped off by the brush 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner suction tool having a rotating brush.

[0002]

2. Description of the Related Art Conventionally, a suction tool for an electric vacuum cleaner of this kind has been disclosed in Japanese Patent Publication No. 63-61014 (A47L9 / 04), in which dust and lint attached to the floor surface by rotating a rotating brush. There are things that pick up dust etc.

[0003]

However, in the above-mentioned prior art, scraped lint, cotton dust, hair, etc. are entangled in the rotating brush, and the dust collection force of general dust is reduced, and the lint entangled in the rotating brush. As a result, the balance of the rotating brush was out of order, and abnormal noise was generated during rotation. In view of such drawbacks, it is an object of the present invention to provide a suction tool for an electric vacuum cleaner that prevents lint and the like from being entangled with a rotating brush, prevents a decrease in dust collection capability, and does not cause abnormal noise. ..

[0004]

According to the present invention, there is provided a rotary brush rotatably provided facing an opening provided on a bottom surface of a suction tool body, a drive unit for rotationally driving the rotary brush, and the rotary brush. And a brush inclining in one direction.

Further, it is characterized in that the rotation direction of the rotary brush is reversed.

[0006]

According to the first aspect of the present invention, the lint and the cotton dust attached to and entangled with the rotary brush are scraped off by the brush inclined in one direction facing the rotary brush.

Further, according to the second aspect, since the rotation direction of the rotating brush is reversed, the lint and the like peeled off by the brush inclined in one direction is automatically separated from the brush.

[0008]

An embodiment of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a suction tool body, which has an outer shell formed by an upper case 2 and a lower case 3, and has a rotating brush 5 rotatably facing an opening 4 formed in the bottom surface of the lower case 3. Reference numeral 6 is a rear wheel, which is a drive unit, with which a roller 7 is integrally provided. Numeral 8 is a pulley which rotates in contact with the roller 7, and is a rotary shaft pulley 10 provided on the rotary brush 5 by a belt 9.
The torque is transmitted to. Reference numeral 11 denotes a suction tube rotatably supported by the suction tool body 1, and connects the rotary brush storage chamber 12 in which the rotary brush 5 is stored with a hose (not shown).

Reference numeral 13 is a brush which is held so as to be in sliding contact with the outer periphery of the rotating brush 5 and is planted with being inclined in one direction. The rotating brush 5 is counterclockwise with respect to the brush 13 as shown in FIG. When rotating, the lint, etc. entwined with the rotating brush 5 is stripped off by this brush 13, and conversely, the rotating brush 5 rotates clockwise as shown in FIG. It is taken and sucked by an electric vacuum cleaner (not shown) through the suction pipe 11 by a suction force.

Next, the operation of this embodiment will be described. The rear wheel 6 rotates back and forth by performing cleaning while moving the suction tool body 1 in the front-back direction. This rotational force is transmitted to the rotating brush 5 via the roller 7, the pulley 8 and the belt 9, and the rotating brush 5 rotates in the front-back direction. That is, when advancing the suction tool body 1, as shown in FIG. 5, the rotary brush 5 removes lint and the like entwined with the brush 13 and is sucked into the cleaner body. Further, when the vehicle is moved backward, as shown in FIG. 6, the lint or the like entwined with the rotary brush 5 is prevented from being peeled off by the brush 13 and entangled with the rotary brush.

In this embodiment, the wheels are used as the drive unit and the rotary brush is rotated by the rotational force of the wheels. However, the drive unit may be a conventionally known electric motor or a fan rotated by an intake air flow.

[0013]

According to the present invention, the lint and the like entwined with the rotating brush can be automatically peeled off by the brush to maintain the function as the rotating brush, and the imbalance due to the lint does not occur. There is no sound generation.

Further, the lint and the like entwined with the brush are automatically removed by the forward and reverse rotations of the rotating brush and sucked into the cleaner body, so that the hands and the like are not soiled.

[Brief description of drawings]

FIG. 1 is a sectional view of a suction tool of an electric vacuum cleaner according to a first embodiment of the present invention.

FIG. 2 is a view seen from above with the upper case of the suction device removed.

FIG. 3 is an enlarged view of a brush of the suction device.

FIG. 4 is a side view of the suction device.

FIG. 5 is a cross-sectional view illustrating an operating state of the suction tool.

FIG. 6 is a cross-sectional view illustrating an operating state of the suction tool.

[Explanation of symbols]

 1 Suction Tool Main Body 4 Opening 5 Rotating Brush 6 Rear Wheel (Drive) 13 Brush

Claims (2)

[Claims] 1. A rotary brush rotatably provided facing an opening provided on a bottom surface of a suction tool body, a drive unit for rotationally driving the rotary brush, and facing and in contact with the rotary brush in one direction. A suction device for a vacuum cleaner, characterized in that it has a brush that inclines inward. 2. The suction tool for an electric vacuum cleaner according to claim 1, wherein the rotating brush is rotated in opposite directions.