JPH0595867A - Suction port unit of vacuum cleaner - Google Patents

Abstract

PURPOSE:To provide a suction port unit serving both for a carpet and floor surface, with which the unit moving load can be reduced while it works on the carpet and the dust collecting efficiency from the floor surface can be enhanced to a great extent. CONSTITUTION:The suction port unit of a vacuum cleaner includes front and rear wheels 6, 7 and an open suction port 1 and is equipped with a rotary brush 2 which is located in the neighborhood of the suction port and rotated by a motor, etc., wherein the dust introducing part at the tail of the suction port 1 is configured with a movable plate 12 so as to make variable the spacing between the surface to be cleaned, where the front wheel 6 and the rear wheel are placed, and the foremost of dust introducing part on the cleaning surface side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction inlet provided with a rotating brush for an electric vacuum cleaner, and more particularly to a suction inlet driven by a dedicated motor or a turbine rotated by a suction airflow. ..

[0002]

2. Description of the Related Art Generally, in a suction port of a vacuum cleaner having a rotating brush built therein, the rotating brush is rotationally driven by a motor or a turbine through a belt.
This rotating brush is formed in a substantially cylindrical shape, and brushes and beaters in which hairs are spirally planted are arranged on the outer peripheral surface thereof. Such a rotating brush is arranged in the vicinity of the suction port of the suction port body and is rotated at several thousands rpm. This rotation knocks on the carpet to scrape up the dust for cleaning.

As described above, since the suction port body having the rotating brush is intended for use on a carpet or carpet,
When cleaning a tatami mat or a floor, the surface to be cleaned will be damaged, so either replace the suction brush with a suction brush that does not have a built-in rotation brush or stop the rotation brush before use. The former is inconvenient and costly when continuously cleaning other rooms.
Further, in the latter case, the gap between the surface to be cleaned and the suction port on the floor surface becomes large, and the loss of the suction airflow with respect to the light dust on the floor surface becomes large, and the suction efficiency decreases.

In view of the decrease in the above-mentioned efficiency, there is a type in which a fixed brush or a rubber blade is provided at the rear end of the suction port. In addition, there is a problem of deterioration over time.

Next, the conventional suction inlet will be described with reference to the drawings. 3 to 5 exemplify the above-mentioned suction port body of the electric vacuum cleaner, and FIG.
FIG. 4 shows a side section when cleaning a carpet or carpet, and FIG. 5 shows a side section when cleaning a floor surface. In FIG. 3, 1 is a suction port, 2 is a rotating brush provided with a brush 3 and a beater 4 and rotatably supported. Reference numeral 5 is a fixed brush made of flocked or soft material, 6 is a front wheel, and 7 is a rear wheel.

When cleaning the carpet or the carpet, as shown in FIG.
As shown in, the front wheel 6 and the rear wheel 7 are sunk by the hair of the carpet or the like, and the suction port body is supported by the sled portion 8 on the lower surface thereof. At this time, the rotary brush 2 is rotated in the direction of the solid line arrow by the cleaner body (not shown) or the hand switch (not shown). In this state, the dust introduction part 9 at the rear end of the suction port 1 is located near the upper surface of the carpet, and the rotary brush 2 is scraped up and the vacuum cleaner body is sucked in the direction shown by the white arrow 10. It is effective. In FIG. 4, the same symbols as those in FIG. 3 indicate the same parts.

In the case of use on the floor surface, as shown in FIG. 5, the suction port body is supported by the front wheel 6 and the rear wheel 7, and the rotary brush 2 prevents the floor surface from being damaged. .. Therefore, a space 11 is created between the floor surface and the dust introducing portion 9. At this time, the rotating brush 2 is stopped and used, but the fixed brush 5 is provided in order to effectively use the intake air of the cleaner body. In addition, in FIG.
The same reference numerals as those in FIG. 3 indicate the same parts.

[0008]

The fixed brush 5 is
This is effective for efficiently using the intake air of the vacuum cleaner body when cleaning the floor surface, but when cleaning the carpet and the like shown in FIG. 4, it becomes a load of the movement of the suction port body and a problem of deterioration over time. Is also occurring. This invention is to solve the above problems that the suction port body of the conventional vacuum cleaner has, reducing the moving load on the carpet, and significantly enhancing the dust collection effect on the floor, The purpose is to provide a suction inlet for a vacuum cleaner.

[0009]

A suction port body for an electric vacuum cleaner according to the present invention has a wheel and a suction port that is opened, and a rotating brush which is rotated by a motor or the like in the vicinity of the suction port. A suction port body of an electric vacuum cleaner, comprising a movable plate as a dust introducing portion at a rear end of the suction port, and a cleaning surface on which the wheel is mounted and a cleaned surface of the dust introducing portion. It is characterized in that the distance from the end on the side is variable.

[0010]

In the suction port body of the electric vacuum cleaner configured as described above, the surface to be cleaned on which the wheels of the suction port body are placed and the surface to be cleaned of the dust introducing portion are moved by moving the movable plate. It is possible to change the distance from the tip on the side. Therefore, the moving load on the carpet can be reduced, and the dust collection effect on the floor can be significantly enhanced.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an enlarged side sectional view of an essential part showing a suction port body of the present invention, and FIG. 2 is an external view of a back surface. In these figures, the same reference numerals as those in FIGS. 3 to 5 indicate the same parts, and thus detailed description thereof will be omitted. In the figure, 1
Reference numeral 2 denotes a wing-shaped movable plate, which is rotatably attached to the suction port body with the shaft 13 as a support shaft, and constitutes the dust introducing portion described in the conventional example.

The movable plate 12 rotates the rotary brush 2,
It is rotated by a plunger (not shown) linked with a switch (not shown) to be stopped, and is moved to the solid line position when the rotary brush 2 is stopped and to the broken line position when it is rotated. Thus, in the suction port body of the present invention, the dust introducing portion at the rear end of the suction port is constituted by the movable plate 12,
The distance between the cleaning surface on which the front wheel 6 and the rear wheel 7 are placed and the tip of the dust introducing portion on the surface to be cleaned side is variable.
In addition, reference numeral 14 in FIG. 1 denotes a floor surface to be cleaned, and 15 denotes a carpet surface to be cleaned in a tentative manner. Further, in the embodiment of the present invention, the fixed brush 5 which has been conventionally used is not used.

In the above embodiment, the movable plate 12 is rotated by operating the switch, but the front wheel 6 and the rear wheel 7 are rotated.
A lever that protrudes from the lower surface of the suction port body is provided on the sled portion 8 on the lower surface of the suction port body that is provided between and, and the movable plate 12 is rotated in conjunction with this lever. It can also be carried out by such a method. In the method using the lever,
The operation control of the rotary brush 2 can also be performed at the same time.

[0014]

As described above, according to the present invention, the dust introducing portion at the rear end of the suction port is constituted by the movable plate, and the surface to be cleaned on which the wheel is mounted and the surface to be cleaned of the dust introducing portion are arranged. Since the distance from the tip of the side is variable, the moving load of the suction port on the carpet can be reduced, and the dust collection efficiency on the floor can be greatly improved. The body is obtained.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention and is a schematic enlarged side view of a main part of a suction port body.

FIG. 2 is a bottom view of the suction port body showing the embodiment of the present invention.

FIG. 3 is a bottom view of a conventional suction port body.

FIG. 4 is a schematic vertical sectional side view of a conventional suction port body.

5 is a schematic vertical sectional side view of a conventional suction port body, and FIG.
Shows a usage state different from.

[Explanation of symbols]

 1 Suction Port 2 Rotating Brush 3 Brush 4 Beater 6 Front Wheel 7 Rear Wheel 9 Dust Introducing Section 12 Movable Plate

Claims (1)

[Claims] 1. A suction port body for an electric vacuum cleaner, comprising a wheel and an opened suction port, and a rotary brush which is rotated by a motor or the like near the suction port. The dust introduction part at the rear end of the suction port is composed of a movable plate,
A suction port body of an electric vacuum cleaner, wherein a distance between a surface to be cleaned on which the wheel is placed and a tip of the dust introducing portion on the surface to be cleaned is variable.