JPS60165937A - Electric cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

2. Description of the Related Art Conventional Structures and Problems There have been conventionally known vacuum cleaners equipped with a rotating brush for removing dust attached to a surface to be cleaned from the surface to be cleaned.

The structure will be explained based on FIG. 1. As shown in the figure, 1 is a vacuum cleaner main body, and an electric blower 2 is installed therein.

Reference numeral 3 designates a floor nozzle, inside which a rotary brush 4 is rotatably supported by a bearing 5, and is rotated by a rotary brush electric motor 6 and a belt 7. Dust separated from the surface to be cleaned by the rotating brush 4 is sucked from the suction port 8 through the suction passage 9 into a dust collection chamber 11 configured below the filter 10.

However, in the above configuration, since there are two electric motors, an electric blower and a rotary brush electric motor, the weight is heavy and the cost is also high.

In addition, vacuum cleaners are also used in which an electric blower is installed at the bottom of the vacuum cleaner body and the electric blower drives a rotating brush, but in this case, the electric blower is located at the bottom of the vacuum cleaner body to drive the rotating brush. Therefore, in terms of configuration, there is a dust collection chamber inside the vacuum cleaner body at the top of the electric blower, and it is necessary to connect the suction port to the dust collection chamber with a hose and suck from the top to the bottom. However, the suction distance was long and the loss was large.

OBJECTS OF THE INVENTION In view of the above-mentioned drawbacks, the present invention provides a vacuum cleaner in which a blower and a rotary brush are driven by a single electric motor, thereby reducing weight and cost as well as shortening the suction distance.

Structure of the Invention In order to achieve this object, the vacuum cleaner of the present invention includes a floor nozzle incorporating a rotating brush and an electric motor that drives the brush by a rotating brush belt, and a vacuum cleaner rotatably attached to the floor nozzle. Inside the vacuum cleaner body, there is a dust collection part on the side near the floor nozzle, and a blower part is installed above it. It is driven by receiving rotational force from the motor, and can blow air and drive the rotating brush with one electric motor, reducing weight and cost. 1. Shortening the suction distance and reducing pressure loss.

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

12 is a vacuum cleaner body, which is rotatably attached to the floor nozzle 13. 14 is a handle attached to the main body 12. An electric motor 16 is provided inside the floor nozzle 13. The electric motor 15 drives a rotating brush 19 via a rotating brush belt 17 and a rotating brush googly 18 using a brush side shaft 16 .

A flexible power transmission shaft 21 is coupled to a blower side shaft 20 of the electric motor 15 . At the other end of the power transmission shaft 21, a power transmission shaft bearing 22. A power transmission shaft pulley 23 is provided, and the electric motor 1 is connected to the blower shaft 25 via the blower belt 24.
6 power is transmitted.

26 is a blower bearing, 27 is a blower, and 31 is a support rubber that elastically supports the blower 2γ. The blower shaft 26, the blower bearing, and the blower 27 constitute a blower section. 28
is a connecting pipe from the floor nozzle 13 to the dust collection chamber 29 and the filter 30.
airflow to. The dust collection chamber 29 is provided in the cleaner body 12 on the side closer to the floor nozzle 13, and the blower section is mounted on the upper part of the dust collection chamber 29.

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

When the electric motor 15 built into the floor nozzle 13 is operated, the blower 27 and the rotating brush 19 start rotating at the same time. The vacuum pressure generated by the blower 27 causes the air to flow from the floor nozzle 13 to the connecting pipe 28. Suction is carried out through the dust collection chamber 29 and filter 30. Since the rotary brush 19 is forcibly rotated at 3000 to sooorpm by the plan side shaft 16 of the electric motor 15 via the rotary brush belt 17 and the rotary brush pulley 18, the effect of separating dust from the surface to be cleaned is strong.

As described above, the blower 27 is connected to the blower side shaft 20 of the electric motor 15.
The rotational force of the flexible power transmission shaft 21, power transmission shaft pulley 23. The blower belt 24 is operated via the blower shaft 25. The blower needs to have a rotation speed of 20,000 to 30,000 rpm in order to be small and lightweight. Since it is preferable for the life of the power transmission shaft to be operated at a lower speed, for example, 5,000 to 110,000 rpm, rotation is transmitted to the blower shaft 25 at an increased speed by the blower belt 24.

In addition, in the above description, the brush side shaft 1 of the electric motor 15
Rotation is transmitted between the rotating brush pulley 18 and the rotating brush belt 17, but there are cases where the rotation of the rotating brush 19 is stopped and cleaning is performed only by suction, for example, when cleaning between folds or between plates. In that case, although not shown, the rotating brush pulley 18 may be integrated with the rotating brush 19,
Two idle rotating brushes are provided for the rotating brush 19, and the rotating brush belt 17 is selectively applied. With this configuration, the rotating brush 19 can be stopped without stopping the suction, and the same operability as the conventional method using two electric motors can be obtained.

Further, the filter 30 may be of a paper bag type.

Effects of the Invention As explained above, the vacuum cleaner of the present invention has the following advantages because the blower and rotating brush can be driven by one electric motor.
The overall weight can be reduced and costs can also be reduced. Furthermore, the air blower is attached to the upper part of the dust collection chamber inside the main body, and is driven by a power transmission shaft from the electric motor built into the floor nozzle.Therefore, there is no need for an electric motor in the air blower, reducing the weight of the main body. It reduces the weight on your hands when you hold it and clean it, making cleaning easier. Moreover, since the suction blower is installed in the second part of the dust collection chamber inside the main unit, the suction airflow from the floor nozzle is
Since the suction passes through a passage arranged in a straight line with the dust collection chamber and the filter, the passage loss occurring therebetween is the lowest, and the suction efficiency is the highest.

[Brief explanation of drawings]

FIG. 1 is a front sectional view of a conventional vacuum cleaner, and FIG. 2 is a front sectional view of a vacuum cleaner showing an embodiment of the present invention. 12... Vacuum cleaner body, 13... Floor nozzle, 15... Electric motor, 21... Power transmission shaft, 27... Blower, 29... Dust collection room. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2

Claims (1)

[Claims] It consists of a floor nozzle that incorporates a rotating brush and an electric motor that drives it by a rotating brush belt, and a vacuum cleaner body that is rotatably attached to the floor nozzle. This vacuum cleaner has a collecting part on the side closest to the floor nozzle and a blower part above it, and the blower in the blower part receives rotational force from the electric motor built into the floor nozzle via a power transmission shaft.