JPH0843Y2 - Vacuum cleaner suction end member - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction end member of an electric vacuum cleaner mainly used at home.

[0002]

2. Description of the Related Art A conventional suction end member is provided with a downward brush so as to surround the outer circumference of a suction end portion having a suction port, and the tip of the brush projects ahead of the tip of the suction end portion. However, the suction end was a single cylindrical pipe.

[0003]

Since the suction end member of the conventional electric vacuum cleaner has the above-mentioned structure, when the dust is actually sucked, the brush is drawn by the flow of the air sucked into the suction port. Has a drawback that it bends so as to cover the suction port, weakening the suction force.

[0004]

According to the structure of the present invention, a large number of groups of elongated suction pipe portions formed of a relatively flexible material are formed at the end of the joint pipe portion 1 for connecting with the suction pipe. A large number of suction pipe groups attached to the tip of the joint pipe portion 1 are connected to communicate with the outer suction pipe portions 2 arranged on the outer periphery and the inner suction pipe portion arranged so as to be inscribed therein. The suction pipe portion 3 is included, the inner suction pipe portion 3 is formed to be slightly shorter than the outer suction pipe portion 2, and the tip thereof is obliquely cut so that the suction port faces obliquely outward, and A brush 4 extending ahead of the outer suction tube section 2 is attached to the tip of the joint tube section 1 so as to surround the outer suction tube section 3.

[0005]

Embodiments of the present invention will now be described with reference to the drawings. Reference numeral 1 is a joint pipe portion for connecting the suction end member 5 to the suction pipe of the electric vacuum cleaner, and has a mounting portion 6 for mounting the suction pipe portions 2, 3 and the brush 4 at the end portion thereof. There is. Long brushes 4 are arranged and attached so as to form a circle on a portion of the lower surface of the attachment portion 6 near the outer periphery. Since the brushes 4 are arranged and mounted slightly inside the outer periphery of the mounting portion 6, the shape of the arranged brushes 4 is substantially the same as the cross-sectional shape of the mounting portion 6. Therefore, if the mounting portion 6 has a circular cross-sectional shape as in the embodiment, the brushes 4 are likewise arranged and mounted in a circular shape, but the sectional shape of the mounting portion 6 of the present invention is not limited to the circular shape. Therefore, when the mounting portion 6 has a quadrangular shape or an elliptical sectional shape, the brushes 4 are also arranged in a corresponding shape.

On the inside of the brush 4, outer suction pipe portions 2 communicating with the joint pipe portion 1 are arranged in a circle and attached to a mounting portion 6. The outer suction tube portion 2 is made of a flexible synthetic resin and is elongated, and its length is shorter than that of the brush 4. Although the twelve outer tube portions 2 are attached in the embodiment, the number of the outer suction tube portions 2 is not limited to this in the present invention, and may be somewhat smaller or larger than this. good.

Inside the outer suction pipe portion 2, inner suction pipe portions 3 respectively communicating with the joint pipe portion 1 are arranged in a circle and attached to a mounting portion 6. The inner suction pipe portion 3 is made of the same material and has the same thickness as the outer suction pipe portion 2, but is formed shorter than that. Further, the inner suction pipe portion 3 has a distal end obliquely cut so that the suction port faces obliquely outward. However, the inner suction pipe part 3 of the present invention
Is not limited to this embodiment, and the thickness may be somewhat larger or smaller.

The central portion further inside the inner suction pipe portion 3 is
In the embodiment, the structure is closed so that air is not sucked in. However, several suction pipe parts communicating with the joint pipe part 1 and having the same length as the inner suction pipe part 3 are attached to this central portion. However, the suction port of the suction pipe portion attached to that portion in this case is preferably oriented in the direction of the pipe. Further, a simple ventilation hole may be used without attaching a pipe to the central portion.

[0009]

When a suction end member with a brush is used as in the present invention, dust adhering to the floor or shelf is scraped off with a brush and sucked. Therefore,
The air at the inlet does not require much suction because the dust that has been stripped is extremely light.

The present invention was conceived in view of this point, and its constitution is that the outer suction pipe portions 2 arranged around the outer circumference and the inner suction pipe portions 3 arranged so as to be inscribed therein. , The inner suction pipe part 3 is formed to be slightly shorter than the outer suction pipe part 2, and the tip of the inner suction pipe part 3 is obliquely cut so that the suction port faces obliquely outward. Also, a brush 4 extending forward is attached to the tip of the joint pipe portion 1 so as to surround the outer suction pipe portion 3. Therefore, even if the dust is peeled off by the brush and floats in the air, and therefore cannot be sucked from the tip of the brush and is released near the center of the brush, the inner suction pipe portion 3
Is formed shorter than the outer suction tube portion 2 and the suction port is directed obliquely outward, so that dust floating near the center of the brush can be sucked from between the brushes. Further, since the suction port of the inner suction pipe portion 3 is directed obliquely outward, the suction force of air in the brush direction is reduced accordingly. In the conventional product, the air inlet was in the same direction as the brush, so
There was a drawback that the suction force was too strong and the brushes were sucked into the air and gathered in the center to block the suction port.However, in the present invention, the suction force of air in the brush direction is reduced. The drawbacks of can be eliminated.

[Brief description of drawings]

FIG. 1 is a front view of the present invention with a brush partially removed.

FIG. 2 is a bottom view of the present invention.

[Explanation of symbols]

1 joint pipe part 2 outer suction pipe part 3 inner suction pipe part 4 brush 5 suction end member 6 mounting part

Claims (1)

[Scope of utility model registration request] 1. A suction end member removably attached to a tip of a suction pipe of an electric vacuum cleaner, wherein a tip end of a joint pipe portion 1 for coupling with the suction pipe is formed of a relatively flexible material. A large number of elongated suction pipe parts are attached so as to communicate with the joint pipe part 1, respectively. The large number of suction pipe parts attached to the tip of the joint pipe part 1 are the outer suction lines arranged around the outer circumference. It comprises a pipe part 2 and an inner suction pipe part 3 arranged so as to be inscribed therein, and the inner suction pipe part 3 is formed to be slightly shorter than the outer suction pipe part 2, and its tip has a suction port obliquely outside. A brush 4 which is obliquely cut so as to face toward the outside and extends ahead of the outer suction pipe portion 2 is attached to the tip of the joint pipe portion 1 so as to surround the periphery of the outer suction pipe portion 3. Electricity characterized by Vacuum cleaner suction end member