JPH11225923A - Suction port body of vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently rotate a rotary cleaning body and to improve the torque by giving the suction current to a flexible body mounted on the rotary cleaning body, forming a suction path for giving the torque to the rotary cleaning body. SOLUTION: A rotary cleaning body 10 is partitioned by the connection of an upper case 2 and a lower case 3 in a suction port body 1 of a vacuum cleaner. A rotary cleaning body 13 is mounted on a dust collection opening 6 of the rotary cleaning body, and the rotary cleaning body 13 has the structure that a flexible body 14 is spirally buried in an outer peripheral face of a hollow cylindrical body. On this occasion, a suction guide 20 for guiding the suction current is installed in such manner that it covers an upper face of the rotary cleaning body 13 with a main body part 20a thereof in the suction port body 1. A suction duct 21 communicating with a suction hole 2b formed on the upper case 2, is integrally molded on the upper part of the suction guide 20, and the torque is given to the flexible body 13 by the suction current sucked from a suction path 22 formed by the suction duct 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a suction port of a vacuum cleaner.

[0002]

2. Description of the Related Art The suction port of a conventional vacuum cleaner includes:
As shown in Japanese Patent Application Laid-Open No. 9-28630, a rotary cleaning body is rotatably provided at a suction port of a suction port main body, and a first and a second arc-shaped shapes are respectively provided at both ends of the rotary cleaning body. A turbine formed by combining turbines is provided coaxially with the rotary cleaning body, and a vent is formed in the upper case or a separately provided cover to supply air to the turbine and drive the rotary cleaning body. Some have a structure.

[0003] Japanese Patent Application Laid-Open No. 9-28631 discloses a turbine having a structure in which a guide portion for guiding air from the outer periphery into an impeller is provided on the outer periphery of the turbine having the above structure.

[0004]

The above-mentioned conventional suction port body has a structure in which the turbine is provided separately from the rotary cleaning body.
It becomes a heavy suction port body. As a result, the cost was high.

An object of the present invention is to solve the above-mentioned problems and to efficiently rotate a rotary cleaning body to increase torque.

[0006]

SUMMARY OF THE INVENTION A suction opening of a vacuum cleaner according to the present invention solves the above-mentioned conventional problems. According to the first aspect of the present invention, a rotary cleaning member driven to rotate by suction air is provided with a dust opening. A suction port for a vacuum cleaner provided in a portion, wherein an intake passage for supplying an intake air flow to a flexible body provided in the rotary cleaning body and providing a rotational force to the rotary cleaning body is provided. It is characterized by the following.

[0007] According to the above construction, the flexible member provided in the rotary cleaning member functions as a moving blade turbine, and allows the air flow sucked from the intake passage of the suction opening member with the driving of the vacuum cleaner main body. Since the rotary cleaning body is rotated by acting on the flexible body, it is not necessary to separately provide a large-scale blade turbine.

According to a second aspect of the present invention, in the suction opening of the vacuum cleaner according to the first aspect, the intake passage is provided at a position symmetrical to the dust suction opening with respect to a rotation axis of the rotary cleaning body. It is characterized by having.

According to the above construction, the rotational force applied to the flexible member by the intake air flow from the dust suction opening and the rotational force generated by the intake air flow from the intake passage are symmetrically generated, and the rotary cleaning member rotates in a well-balanced manner. Increases torque.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of a suction port of a vacuum cleaner according to the present invention will be described in detail with reference to the drawings.

FIG. 10 is a perspective view showing the overall appearance of the vacuum cleaner. In FIG. 10, reference numeral 101 denotes the main body of the vacuum cleaner, reference numeral 102 denotes a hose, reference numeral 103 denotes a remote control switch provided at the hose hand, and reference numeral 104. Is an extension pipe, and 201 is a suction port body.

The airflow sucked together with dust from the suction port body 201 when the vacuum cleaner main body 101 is in an operation state enters the vacuum cleaner main body 101 via the extension pipe 104 and the hose 102, and the dust is collected. After being discharged.
The operation of the vacuum cleaner main body 101 is controlled by a command from a remote control switch 103.

FIG. 1 is a side sectional view showing a suction port body of a vacuum cleaner according to the present invention. The suction port body 1 has an outer shell composed of upper and lower cases 2 and 3, and a rotatable drive is provided at a rear end portion. A pipe 4 is provided and connected to a suction pipe 5 via the driving pipe 4, and the suction pipe 5 is connected to the extension pipe 1.
04, a remote control switch 103, and a hose 102 are connected to the vacuum cleaner main body 101.

The lower case 3 has a horizontally long dust suction opening 6 formed at the front lower surface thereof, and rubber sealing lips 7a and 7b are provided in front and behind the dust suction opening 6 in a horizontal direction. ing. These seal lips may be either one of before and after.

The lower case 3 has a front wheel 8 attached to a front portion and a rear wheel 9 attached to a rear portion.
Thereby, a certain gap is maintained between the lower case 3 and the floor surface. In the inside of the suction port main body 1, the rotation cleaning body chamber 10 is connected by coupling the upper case 2 and the lower case 3.
And a communication path 11 for communicating the rotary cleaning body chamber 10 with the drive pipe 4 side, and a dust suction passage (first air passage) from the dust suction opening 6 to the suction pipe 5 is formed.

Reference numeral 12 denotes a bumper which is sandwiched between the upper and lower cases 2 and 3 and is located on the outer periphery of the suction port main body 1 and serves to seal between the upper and lower cases 2 and 3 and buffer the obstacle of the suction port main body 1. is there.

Numeral 13 denotes a rotary cleaning body disposed in the dust suction opening 6 of the rotary cleaning body chamber 10, which is formed on the outer peripheral surface of a hollow cylindrical body 13a formed by extrusion of resin, as shown in FIG.
180 flexible strips (bristles or rubber blades)
° It is spirally implanted in a state of being separated. As shown in FIG. 2, the rotary cleaning body 13 has a rotating shaft 1 protruding from both ends.
5 protrudes into the mechanism chambers 16 and 17, and
And is supported by a bearing 18.

As shown in FIG. 2, the bearing 18 is provided in a groove (not shown) of a rib 19 provided on the lower case 3 side. The rotary cleaning body room 10 and the mechanism rooms 16 and 17
The partition walls 16a and 17a are provided with insertion ports 16b and 17b through which the end of the rotary cleaning body 13 is inserted, so that the rotary cleaning body 13 can be rotated.

Reference numeral 20 shown in FIG. 1 denotes an intake guide for guiding an intake flow, which is formed by molding a synthetic resin material such as plastics, and has an arc-shaped main body portion 20a and an upper portion above the rear edge of the main body portion 20a. And a mounting portion 20b extending from the main body portion 2 in the suction port main body 1.
The upper end of the main body portion 20a is fitted to the support rib 3a formed on the lower case 3, and the upper end edge of the mounting portion 20b is fitted to the upper case 2. It is fixed by being fitted to the formed support rib 2a.

An upper case 2 is provided above the intake guide 20.
An intake duct 21 communicating with an intake hole 2b provided in the air passage is integrally formed, and an intake passage 22 is formed, so that the intake air sucked from the intake passage 22 is supplied to a flexible body (brush bristles or rubber blades) 14. The suction passage (second air passage) is formed by turning the rotary cleaning body chamber 10 while applying a rotational force to the suction pipe 5.

Reference numeral 23 denotes a rotor blade turbine for rotatingly driving the rotary cleaning body 13, which is fitted to an end of the rotary cleaning body 13. The rotating shaft 15 is fixed to the center of the rotor blade turbine 23, and a metal bearing 24 is inserted into the rotating shaft 15 so that the rotating shaft 15 rotates smoothly with respect to the bearing 18. . Reference numeral 25 denotes a fume port provided on the outer peripheral surface of the rotary cleaning body 13, and the upper case 2 based on a suction force accompanying driving of the vacuum cleaner main body.
Alternatively, air 27 flowing from intake ports 26... Provided in the lower case 3 is sucked from the mechanism chambers 16 and 17 through the rotor blade turbine 23 of the rotary cleaning body 13 and the hollow cylindrical body 13a,
It serves to blow out dust in the carpet or in the gap between the floors by ejecting the gas to the rotary cleaning body room 10 in a reduced pressure state. The rotating cleaning body 13 also receives a rotational force by the rotor blade turbine 23 by an intake air flow in an intake passage (third air passage) from the intake port 26 to the suction pipe 5 through the jet port 25 through the jet port 25.

Next, the operation of the suction port having the above-described structure will be described.

When the suction port body 1 is placed on the floor surface and the seal lips 7a and 7b provided before and after the dust suction opening 6 of the lower case 3 come into close contact with the floor surface, the rotating cleaning body chamber 10 is decompressed. In this state, the outside air is sucked in from the intake passage 22, and the intake air flow turns the rotary cleaning body room 10 and reaches the suction pipe 5 while applying a rotational force to the flexible body 14. At the same time, outside air is sucked in from the air inlets 26.
17 flows into the rotary cleaning body 13. The inflowing air 27 flows out so as to blow out from blowing ports 25... Provided on the outer periphery of the rotary cleaning body 13 while applying a rotating force to the respective blades 23 a of the rotor blade turbine 23.
To the suction pipe 5. Also, the dust suction opening 6
Thus, the rotating body 14 is also provided with a rotational force by the intake air flow from the outside to the suction pipe 5.

Since the intake passage 22 and the dust suction opening 6 are arranged symmetrically with respect to the rotation axis of the rotary cleaning body 13, the rotational force of the intake flow applied to the flexible body 14 is symmetric. Then, the rotating cleaning body 13 performs well-balanced rotation.

The rotating cleaning body 13 rotates with a strong rotating torque by the rotating force of the flexible body 14 and the rotating force of the rotor blade turbine 23, and the dust in the carpet is removed by the flexible body (brush) 14 provided on the outer peripheral surface. The dust is scraped out and is carried to the suction pipe 5 while preventing the dust scraped out by the blast from the blast port 25 from becoming entangled with the flexible body (brush) 14.
In addition, dust in the carpet or in the gap between the floor surfaces is blown out by the fume flow from the fume port 25, and efficient cleaning is performed.

[0026]

According to the first aspect of the present invention, the suction body of the vacuum cleaner of the present invention is configured as described above, and the flexible body provided on the rotary cleaning body functions as a blade turbine. However, since the rotary cleaning body is rotated by the airflow sucked from the suction passage of the suction port body as the vacuum cleaner is driven, there is no need to separately provide a large-scale moving blade turbine, and the suction port body is reduced in size. The weight can be reduced, and as a result, the cost can be reduced.

According to a second aspect of the present invention, an intake passage for supplying an intake air flow to a flexible body acting as a blade turbine and a dust suction opening are disposed at symmetrical positions with respect to the rotation axis of the rotary cleaning body. As a result, the rotational force due to the intake air flow from the dust suction opening and the rotational force due to the intake air flow from the intake passage to the flexible body are symmetrically generated, and the rotating cleaning body rotates in a well-balanced manner, thereby increasing the torque.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an embodiment of a suction opening body of a bright vacuum cleaner according to the present invention.

FIG. 2 is a top view showing an internal structure of a suction opening of the vacuum cleaner of FIG. 1;

FIG. 3 is a side view of a suction port of the vacuum cleaner of FIG. 1;

FIG. 4 is a top view of a suction port of the vacuum cleaner of FIG. 1;

FIG. 5 is a bottom view of a suction port of the vacuum cleaner of FIG. 1;

FIG. 6 is a cross-sectional view of a rotary cleaning body in a suction opening body of the electric vacuum cleaner in FIG. 1;

FIG. 7 is a cross-sectional view of the rotary cleaning body of FIG. 6 taken along line II.

8 is a cross-sectional view of the rotary cleaning body of FIG. 6 taken along the line II-II.

FIG. 9 is an explanatory view showing blades of a moving blade turbine at an inlet of the vacuum cleaner of FIG. 8 and an air flow impinging thereon.

FIG. 10 is a perspective view showing the overall appearance of the vacuum cleaner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Suction port main body 6 Dust suction opening 10 Rotary cleaning body room 13 Rotary cleaning body 14 Flexible body 20 Suction guide 20a Suction hole 21 Suction duct 22 Suction passage

Claims (2)

[Claims] 1. A suction port for a vacuum cleaner, comprising a rotary cleaning body rotatably driven by suction air at a dust suction opening, wherein an air flow is given to a flexible body provided in the rotary cleaning body, and A suction opening body for a vacuum cleaner, wherein an intake passage for applying a rotational force to a cleaning body is provided. 2. A suction port body for a vacuum cleaner according to claim 1, wherein said suction passage is provided at a symmetric position of said dust suction opening with respect to a rotation axis of said rotary cleaning body.