JPH0530459B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a vacuum cleaner equipped with a rotating brush for removing dust attached to a surface to be cleaned.

Conventional Structure and Problems There have been conventionally known vacuum cleaners equipped with a rotating brush that separates dust adhering to the surface to be cleaned from the surface to be cleaned.

The structure will be explained based on FIGS. 1 and 2. In the figures, 1 is a vacuum cleaner main body, and an electric blower 2 is installed inside the vacuum cleaner main body 1.
Reference numeral 3 designates a floor nozzle which is rotatably connected to the vacuum cleaner main body 1. A rotary brush 4 is rotatably supported on the inside of the floor nozzle by a bearing 5. is rotated. The dust separated from the surface to be cleaned by the rotating brush 4 is sucked into a dust collecting chamber 12 in a dust box 11 configured below a filter 10 through a suction port 8 and a connecting pipe 9. Note that 13 is a handle.

However, the above configuration has the disadvantage that the weight of the electric blower 2, dust box 11, and vacuum cleaner main body 1 is applied to the handle 13 during cleaning work, which increases the weight on the hand when holding the handle 13. Ta.

In addition, some vacuum cleaners have an electric blower built into the bottom of the vacuum cleaner body so that the weight of the electric blower does not rest too much on the handle. Because of the weight of the handle, it felt heavy when held.

OBJECTS OF THE INVENTION In view of the above drawbacks, the present invention provides a vacuum cleaner that reduces the weight required during cleaning operations and is easy to handle.

Structure of the Invention In order to achieve this object, the vacuum cleaner of the present invention has a floor nozzle that has a built-in rotating brush, a suction port for sucking the dust scraped up by the rotating brush at the front of the bottom, and a roller at the rear of the bottom. , a vacuum cleaner body with a built-in electric blower, a filter and a dust collection chamber for collecting dust filtered by the filter on the suction side, and a handle projecting upward from the vacuum cleaner body, The vacuum cleaner body is connected to a position behind the suction port of the floor nozzle and in front of the roller so as to be rotatable in the vertical direction,
This connecting part is equipped with a spring body that biases the vacuum cleaner body in the direction of standing upright. With this configuration, the weight of the vacuum cleaner body is reduced by the reaction force of the spring body, making it easier to handle the device. This is what I did.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings.

3 and 4, 1 is the vacuum cleaner body, 2 is an electric blower, 3 is a floor nozzle, 4 is a rotating brush, 5 is a bearing, 6 is an electric motor for the rotating brush, 7
is the belt, 8 is the suction port, 10 is the filter, 11
12 is a dust box, 12 is a dust collection chamber, and 13 is a handle, which is the same as the structure shown in FIGS. 1 and 2.

Reference numeral 14 denotes a connecting pipe that connects the cleaner body 1 and the floor nozzle 3, and is rotatably attached to the floor nozzle 3. A spring body 15 is installed on the outer periphery of the rotating part in the floor nozzle of this connecting pipe 14, and one end of this spring 15 is attached to the cleaner body 1 side.
The other end is attached to the floor nozzle 3 side. Further, the floor nozzle 3 is provided with a roller 16 behind the connecting pipe 14 and the rotating part of the floor nozzle 3 so that the front part of the floor nozzle 3 is not lifted up by the force of the spring body 15.

The operation of the vacuum cleaner configured as above will be described below.

A rotary brush 4 is rotated by a rotary brush electric motor 6 and a belt 7 in the floor nozzle 3, and the dust attached to the surface to be cleaned is separated from the surface by the rotary brush 4. Further, due to the suction force of the electric blower 2 within the cleaner body 1, dust is sucked into the dust collection chamber 12 below the filter 10 from the suction port 8 through the connecting pipe 14.

Further, when the vacuum cleaner body 1 is tilted to the cleaning state, the spring body 15 exerts a biasing force in the direction of pushing up the vacuum cleaner body 1, that is, in the direction of making it stand upright, and the handle 13
The weight of the electric blower 2, dust box 11, and vacuum cleaner main body 1 that hangs downward is reduced.

As described above, according to this embodiment, the vacuum cleaner main body 1
By providing the spring body 15 between the handle 13 and the floor nozzle 3, it is possible to reduce the weight felt in the hand when the handle 13 is held in the hand.

In this embodiment, the electric blower 2 is installed inside the upper part of the cleaner body 1, but it may be placed anywhere inside the cleaner body.

Effects of the Invention As described above, the present invention connects the vacuum cleaner main body to a position behind the suction port of the floor nozzle and in front of the roller so as to be rotatable in the vertical direction, and also allows the vacuum cleaner main body to stand upright at this connection part. By providing a spring body that biases in the direction, the load on the cleaner body applied to the operator can be reduced, and as a result, cleaning work efficiency can be greatly improved.

In addition, a reaction force is applied to the floor nozzle that lifts the front part of the nozzle, but since the point of action of the spring body is in front of the roller, the reaction force is absorbed by the roller. It does not float above the surface, allowing reliable cleaning.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a conventional vacuum cleaner; Figure 2 is a perspective view of a conventional vacuum cleaner;
3 is a sectional view of the vacuum cleaner according to an embodiment of the present invention, and FIG. 4 is a detailed sectional view of the connecting portion between the floor nozzle and the vacuum cleaner main body. 1...Vacuum cleaner body, 2...Electric blower, 3...
Floor nozzle, 15...spring body.

Claims (1)

[Claims] 1. A floor nozzle with a built-in rotating brush, a suction port at the front of the bottom that sucks in the dust scraped up by this rotating brush, and a floor nozzle with a roller at the rear of the bottom, a built-in electric blower, and a filter on the suction side and a filter that filters the dust with this filter. The vacuum cleaner body is equipped with a vacuum cleaner body provided with a dust collection chamber for collecting dust, and a handle projecting upward from the vacuum cleaner body. It is connected to the front position so that it can rotate freely in the elevation and elevation directions, and
This vacuum cleaner is equipped with a spring body that biases the vacuum cleaner body in the direction of standing upright in this connecting part.