JPH1199100A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner preventing the deterioration of sucking performance and preventing a turbine fan from dirt caused by the sticking of dust and the loss of rotating force. SOLUTION: The vacuum cleaner is provided with a vacuum cleaner main body 1 and a suction port 5. The port 5 is freely rotatably provided with a turbine brush 11 obtained by fixing a turbine fan part 18 to a rotary brush part and the rotary brush part of the brush 11 is arranged within a suction air route. In this case, the brush 11 is rotated by blowing the exhausted air stream from a suction motor 14 incorporated in the main body 1 to the part 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a vacuum cleaner.

[0002]

2. Description of the Related Art Conventionally, there is a vacuum cleaner provided with a turbine brush at a suction port in order to improve dust absorbing performance. With this vacuum cleaner, the turbine brush rotates and sweeps debris on the floor, so that dust and dirt stuck on the floor and dust stuck on the floor can be effectively sucked.

[0003] A turbine brush provided in a conventional vacuum cleaner has a turbine fan portion fixed to both ends of a rotary brush portion, and is rotatably provided inside a suction port. The rotary brush section and the turbine fan section are arranged in an intake path inside the suction port.

[0004] As a driving source of a conventional turbine brush, an airflow on an intake side of a suction motor built in a cleaner body is used. The airflow on the intake side rotates the turbine fan section in the intake path, and rotates the rotary brush section directly connected to the same shaft as the turbine fan section.

[0005]

However, in the conventional vacuum cleaner, since both the rotary brush portion and the turbine fan portion of the turbine brush are in the intake path, the suction pressure is increased by the work of rotating the turbine fan portion. There is a problem that a pressure loss occurs and as a result, the suction performance of the vacuum cleaner is reduced.

Further, since the air flow on the intake side for rotating the turbine fan portion contains a large amount of dust, there is a problem that dust adheres to the turbine fan portion and becomes dirty. Further, the adhesion of dust to the turbine fan portion (particularly, the shaft portion) causes a loss of rotational force, and as a result, the rotational speed of the turbine brush decreases.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and it is an object of the present invention to provide a vacuum cleaner which prevents a decrease in suction performance and in which a turbine fan does not cause dirt or loss of rotational force due to adhesion of dust. With the goal.

[0008]

The vacuum cleaner of the present invention comprises:
A vacuum cleaner body and a suction port are provided.A turbine brush formed by fixing a turbine fan unit to a rotary brush unit is rotatably provided at the suction port, and the rotary brush unit of the turbine brush is disposed in an intake path. The vacuum cleaner is characterized in that the turbine brush is rotated by blowing exhaust gas from a suction motor built in the cleaner body to the turbine fan unit.

It is preferable that the rotary brush section and the turbine fan section are partitioned inside the suction port.

It is preferable that an exhaust guide is provided for guiding at least a part of the exhaust flow from the suction motor of the cleaner body to the suction port.

It is preferable that the suction port is provided with at least one fin for guiding at least a part of an exhaust flow from a suction motor of the cleaner body to the turbine fan portion.

In the electric vacuum cleaner of the present invention, the turbine brush can be rotated by blowing exhaust gas from a suction motor built in the main body of the cleaner to a turbine fan portion of the turbine brush. Therefore,
Since suction pressure is not used for rotating the turbine fan, suction performance is not reduced. In addition, since the exhaust air that rotates the turbine fan unit is clean air from which dust is removed by a known filtering unit such as a paper pack and a filter inside the cleaner body, dust does not adhere to the turbine fan unit. .

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a vacuum cleaner according to the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory perspective view of a vacuum cleaner in use as an upright showing an embodiment of the vacuum cleaner of the present invention. FIG. 2 is a partially cutaway view of the vacuum cleaner of FIG. FIG. 3 is a cross-sectional explanatory view of the vacuum cleaner of FIG. 1 partially cut along the width direction, FIG. 4 is a view of the suction port of FIG. 1 viewed from below, and FIG. FIG. 2 is an explanatory cross-sectional view showing a state where an exhaust guide is extended in the vacuum cleaner of FIG. 1.

As shown in FIGS. 1 to 5, a vacuum cleaner according to the present embodiment is a vacuum cleaner having a turbine brush 11 built in a suction port 5, and includes a cleaner main body 1 and a support pipe 2. And rotary bend 3 and rotary pipe 4
, A suction port 5 and a hose 6.

The cleaner body 1 contains a dust collecting chamber 12 and an electric blower chamber 13 therein. Electric blower room 13
Inside, a suction motor 14 is arranged. An exhaust slit 16 for communicating between the electric blower chamber 13 and the exhaust guide 15 is formed on the rear surface 1 e of the cleaner body 1.

As shown in FIG. 1, the support pipe 2 has an upper end opening 2a connected to a suction port 1a of the cleaner body 1 through a hose 6. A grip 7 to be held by hand is fixed to the upper part of the support pipe 2.

As shown in FIG. 1 and FIG.
Is detachably fixed to the front side of the support pipe 2 by a fixing method described later. Therefore, the cleaner main body 1 is detachably fixed to the support pipe 2 so as to be used as an upright (see FIG. 1), the cleaner main body 1 is removed from the support pipe 2 and the cleaner main body 1 is removed. It can be used in a handy state only used. In addition,
In a state other than the state of use as an upright, the turbine brush 11 cannot be rotated using the exhaust flow.

Note that the vacuum cleaner of the present embodiment is shown in FIG.
As shown in FIGS. 1 to 2, when the cleaner is deformed into a state of use as an upright, first, the downward concave portion 1c formed at the rear end of the lower surface 1b of the cleaner body 1 is rotated by the rotary bend 3.
By fitting into the upward convex portion 3d provided in the
The lower part of the cleaner body 1 is fixed. Then, the vacuum cleaner body 1
Is brought into contact with the support pipe 2 so that the downward clamp hook 10 provided on the support pipe 2 is fitted into the upward recess 1 d formed at the front end of the lower surface 1 b of the cleaner body 1. The lower surface 1 b of the machine body 1 can be fixed to the outer surface of the support pipe 2. On the other hand, when the cleaner body 1 is detached from the support pipe 2, the release hook 10a of the clamp hook 10 is slid upward to pull out the clamp hook 10 from the concave portion 1d, and then the fixing method described above. You can remove it in the reverse order.

The support pipe 2 and the rotary bend 3 are detachably connected to each other by a C-ring (not shown) so as to prevent rotation. The rotary bend 3 and the rotary pipe 4 are rotatably connected. Reference numeral 8 denotes a lock piece for preventing the rotary bend 3 from coming off the support pipe 2. The rotary pipe 4 is connected to the suction port 5 so as to swing up and down. Therefore, the rotary pipe 4 (and the rotary bend 3 and the support pipe 2 connected to the rotary pipe 4) can swing up and down.

At the suction port 5, a turbine brush 11 is provided rotatably. The turbine brush 11 is composed of a rotary brush portion 17 in which a plurality of rows of bristles 17 a are spirally arranged, and a turbine fan portion 18 fixed to both ends of the rotary brush portion 17. The rotary brush unit 17 and the turbine fan unit 18 are
Is fixed by press-fitting. The rotating shaft 19 is rotatably supported by a bearing 20 provided on the inner wall of the suction port 5.

Inside the suction port 5, a portion between the rotary brush portion 17 and the turbine fan portion 18 is defined by a rib 21. The central space portion 22 in which the rotary brush portion 17 is arranged forms a part of an intake path. The exhaust flow from the suction motor 14 is introduced into the space 23 on both sides where the turbine fan section 18 is disposed through the exhaust guide 15 and the slit 24 formed on the upper surface of the intake port 5. The two-sided space 23 is provided at the downstream end with a communication hole 25 communicating with the central space 22 (see FIG. 2).
Are formed.

Although the present embodiment has been described with reference to an example in which the rotary brush portion 17 and the turbine fan portion 18 are partitioned by the ribs 21, the present invention is not limited to this. It is sufficient if the exhaust gas from the suction motor hits the turbine fan unit 18 even if there is no air flow.

An exhaust guide 15 for guiding the exhaust flow of the suction motor 14 to the suction port 5 is made of a flexible member made of bellows-like vinyl chloride resin, and has an exhaust slit 16 of the cleaner body 1 and an intake port. 5 and the slit 24 is communicated. The exhaust guide 15 is air-tightly and detachably connected to the cleaner main body 1 and the suction port 5 by, for example, slidingly inserting it through a packing or the like. Since the exhaust guide 15 is a bellows-like flexible member, as shown in FIG. 5, even when the support pipe 2 is inclined from the vertical position toward the floor during use of the vacuum cleaner, the exhaust guide 15 can be used. Vacuum cleaner body 1 by extending
The communication between the suction port 5 and the suction port 5 can be maintained.

Although the present embodiment has been described by taking an example having the exhaust guide 15, the present invention is not limited to this, and the exhaust flow of the suction motor 14 can be controlled without the exhaust guide 15. What is necessary is just the structure which goes to the inlet 5.
For example, the exhaust slit 16 and the slit 24 may be communicated with each other by the cleaner body 1 and the suction port 5 being in direct contact with each other.

Further, fins 26 for guiding at least a part of the exhaust flow from the suction motor 14 of the cleaner body 1 to the turbine fan section 18 are provided at both side spaces 23 of the suction port 5. One is provided.
The number, the angle, and the shape of the fins 26 are set so that the wind is effectively directed to the blades of the turbine fan unit 18.

Although the present embodiment has been described with reference to the example having the fins 26, the present invention is not limited to this, and the turbine fan unit 1 may be provided without the fins 26.
8 may be any configuration as long as the exhaust flow of the suction motor 14 is directed to 8.

In the vacuum cleaner of the present embodiment configured as described above, the air exhausted from the suction motor 14 built in the cleaner main body 1 is first supplied to the electric blower chamber 1.
Enter 3. A part of the exhaust gas flows toward the exhaust guide 15 through the exhaust slit 16, and the rest is discharged to the outside through slits 29 (see FIG. 3) formed on both side surfaces of the cleaner body 1. The exhaust flow introduced into the exhaust guide 15 is introduced into the both-side space 23 inside the suction port 5 through the slit 24 while being guided by the exhaust guide 15. The exhaust flow introduced into the space 23 on both sides is blown to the turbine fan 18 while being guided by the fins 26. Thereby, the turbine fan section 18 and the rotary brush section 17 of the turbine brush 11 can be rotated.

The rotational drive of the turbine fan section 18 uses only the exhaust gas flow and does not use the suction pressure, so that the suction performance is not reduced. In addition, since the exhaust air that rotates the turbine fan 18 is clean air after dust is removed by the paper pack 27 and the filter 28 inside the cleaner body 1, dust does not adhere to the turbine fan 18. Therefore, the turbine fan 18 is not contaminated, and there is no loss of the rotational force of the turbine fan 18 due to the adhesion of dust.

Further, the exhaust flow that has caused the turbine fan section 18 to rotate merges with the intake air flowing through the central space 22 through the communication hole 25 (see FIG. 2). After that, the joined air is supplied to the connecting member 9, the rotary pipe 4,
The air passes through the rotary bend 3, the support pipe 2, and the hose 6 in this order, and is finally sucked into the dust collecting chamber 12 of the cleaner body 1.

As shown in FIG. 2, the exhaust flow that has caused the turbine fan section 18 to rotate is blown onto the floor, and then merges with the intake flow. Therefore, the recirculation effect that the dust on the floor is blown up by the exhaust stream and sucked is obtained, and as a result, the dust collecting performance is improved.

[0031]

According to the present invention, since the turbine brush is rotated using the exhaust gas flow, it is possible to prevent a decrease in suction performance. At the same time, the problem that the turbine fan portion is contaminated by the adhesion of dust and the rotational force is lost can be solved.

[Brief description of the drawings]

FIG. 1 is a perspective explanatory view of a vacuum cleaner in use as an upright showing one embodiment of the vacuum cleaner of the present invention.

FIG. 2 is an explanatory cross-sectional view of the vacuum cleaner of FIG. 1 when a part thereof is cut along a front-rear direction.

FIG. 3 is an explanatory sectional view of the vacuum cleaner of FIG. 1 when a part thereof is cut along a width direction.

FIG. 4 is a view of the suction port of FIG. 1 as viewed from below.

FIG. 5 is an explanatory sectional view showing a state in which an exhaust guide is extended in the electric vacuum cleaner in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 5 Suction port 11 Turbine brush 14 Suction motor 17 Rotary brush part 18 Turbine fan part

Claims (4)

[Claims] 1. A vacuum cleaner comprising a cleaner body and a suction port, wherein the suction port is provided with a rotatable turbine brush having a turbine fan section fixed to a rotary brush section, and the rotary brush section of the turbine brush sucks air. A vacuum cleaner disposed in a passage, wherein the vacuum brush is rotated by blowing an exhaust flow from a suction motor built in the cleaner body to the turbine fan unit. 2. The vacuum cleaner according to claim 1, wherein the rotary brush section and the turbine fan section are partitioned inside the suction port. 3. The vacuum cleaner according to claim 1, further comprising an exhaust guide for guiding at least a part of an exhaust flow from a suction motor of the cleaner body to the suction port. 4. The suction port is provided with at least one fin for guiding at least a part of an exhaust flow from a suction motor of the cleaner body to the turbine fan unit. The vacuum cleaner according to 2 or 3.