JPH1199105A - Sucking tool for vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sucking tool for a vacuum cleaner by which a loss can be reduced and size reduction and weight reduction can be attained by stopping a rotary brush when a sucking tool main body is raised from a floor. SOLUTION: When a sucking tool main body 1 is used in close contact with a thick carpet, a clearance with a floor surface is eliminated, and a sucking air current is apt to lack, but since the sucking air current can be replenished from an intake port 7 on the side of the sucking tool main body 1 opposed to a propeller fan 5, torque of the propeller fan 5 does not reduce, and dust and dirt and a waste thread sticking to the carpet can be effectively sucked by maintaing rotation of a rotary brush 6. When the floor surface is cleaned, rotation of the rotary brush is not required, but even if the sucking tool main body 1 is brought into close contact with the floor surface, since an intake air inflow space is secured, a sufficient sucking air current is imparted to a suction port 8 opposed to the rotary brush 6 arranged on a bottom surface of the sucking tool main body 1. Therefore, since the sucking air current from the intake port 7 of the properller fan 5 does not rotate the propeller fan 5 since its speed is small, as a result, the rotary brush is not rotated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction device for a vacuum cleaner having a rotary brush for scraping lint and the like.

[0002]

2. Description of the Related Art A suction device of a conventional vacuum cleaner is disclosed in
As described in 1-7806, as a suction tool body for effectively cleaning both a hard floor surface and a carpet,
In order to effectively absorb dust adhering to a carpet, there is a type provided with a rotating brush and a turbine for driving the rotating brush. The suction tool body has a suction passage connected to the dust collector of the vacuum cleaner and a brush chamber that opens toward the floor, which are separated from each other by a partition. The turbine is housed in the suction passage. In addition, there is disclosed a rotating brush storage chamber in which a rotating brush driven by a turbine via power transmission means is stored.

[0003] In the above prior art, a horizontally long rotating brush storage chamber opening toward the floor and a turbine chamber having a turbine are provided, and these rotating brushes and the turbine are connected by a belt in a transmission chamber. For this reason, the suction tool body itself becomes large and heavy, and operability or handling is inconvenient.

Further, when performing maintenance such as removal of dust, lint, hair, etc. wrapped around the rotating brush,
Or had to disassemble the suction tool body, there really is transmission loss because it is through the belt for transmission, in the worst case, if the belt is disconnected it takes a long time of troublesome maintenance. Further, even when the suction tool main body is lifted off the floor, there is a safety problem because the rotating brush rotates.

[0005]

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above problems, and in a suction device of a vacuum cleaner having a rotating brush, a rotating brush is provided when the suction device body is lifted up from the floor. It is an object of the present invention to provide a suction device for a vacuum cleaner which can reduce the transmission loss for rotating the rotating brush, can reduce the weight, and is easy to maintain.

[0006]

To achieve the above object, a suction tool for a vacuum cleaner according to a first aspect of the present invention comprises a suction tool body having a suction port on a bottom surface, and a suction tool body provided in the suction tool body. A provided rotating brush storage chamber, a rotating brush rotatably supported in the rotating brush storage chamber facing the suction port, and a propeller fan disposed at an end of the rotating brush,
An intake port is formed on a side surface of the suction tool main body so as to face the propeller fan and communicates with the rotary brush storage chamber.

In this way, when the suction tool main body is lifted up from the floor, the airflow resistance from the suction port becomes small, and almost no air is sucked from the suction port, and only the suction is performed from the suction port. Therefore, the rotating brush does not rotate.
On the other hand, when the suction tool main body is placed on the surface to be cleaned, the flow of the suction air sucked by the vacuum cleaner is also generated from the suction port facing the propeller fan on the side of the suction tool main body, so that the rotating brush is used. Rotates. Further, since the rotating brush and the propeller fan are integrated, transmission loss for rotating the rotating brush can be reduced, the weight can be reduced, and maintenance can be easily performed.

According to a second aspect of the present invention, there is provided a suction tool for a vacuum cleaner having a suction tool main body having a suction port on a bottom surface, a rotating brush storage chamber provided in the suction tool main body, and a face facing the suction port. A rotary brush rotatably supported in the rotary brush storage chamber, a propeller fan disposed at an end of the rotary brush, and a rotary brush storage formed on a side surface of the suction tool main body so as to face the propeller fan. And a suction port communicating with the chamber, wherein the propeller fan is disposed at both ends of the rotating brush, and the suction ports are formed on both sides of the suction tool main body.

Thus, an air inlet is opened on the side of the suction device main body facing the propeller fan, and the side air inlets of the suction device main body facing the propeller fan and the propeller fan are located at both ends of the rotating brush. Since the rotating brush is rotated by the two propeller fans at the same time, a strong rotating force can be obtained.

According to a third aspect of the present invention, there is provided a suction device for a vacuum cleaner having a suction device main body having a suction port on a bottom surface, a rotating brush storage chamber provided in the suction device main body, and facing the suction port. A rotary brush rotatably supported in the rotary brush storage chamber, a propeller fan disposed at an end of the rotary brush, and a rotary brush storage formed on a side surface of the suction tool main body so as to face the propeller fan. An intake port communicating with the chamber is formed, a wheel is rotatably mounted on the side surface of the suction tool main body, and a communication port communicating with the intake port is formed on the wheel.

[0011] In this manner, the flow of the suction air sucked by the vacuum cleaner is also generated from the suction port opposite to the propeller fan on the side of the suction tool main body, so that the rotating brush rotates and through the communication port of the wheel. Since the air is sucked, the dust near the wall can also be satisfactorily sucked.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a suction device for a vacuum cleaner according to the present invention will be described in detail below with reference to FIGS. 1 is a side view of the suction device for a vacuum cleaner, FIG. 2 is a front sectional view of the suction device for the vacuum cleaner, and FIG. 3 is a side sectional view of the suction device for the vacuum cleaner.

1 to 3, reference numeral 1 denotes a suction tool main body,
2 is a bent joint, 3 is a communication port provided on a wheel, 4 is a wheel, 5 is a propeller fan as a turbine, 6 is a rotating brush, 7 is a suction port on the side of the suction tool body, and 8 is a bottom face of the suction tool. The suction port 9 facing the rotating brush provided on the surface is a carpet surface on the floor.

Next, the operation of the electric vacuum cleaner having such a configuration will be described. When the vacuum cleaner is driven to perform cleaning, the vehicle passes from the communication port 3 provided on the wheel to the joint 2 through the storage chamber of the propeller fan 5 and the rotary brush 6 via the suction port 7 on the side of the suction tool body. And the intake air flows to rotate the propeller fan 5. The rotating brush 6, which is connected to the propeller fan 5 by a shaft, rotates in synchronization with the rotating force, and the blade (not shown) of the rotating brush 6 scrapes the surface to be cleaned.
Riding on the suction airflow from behind the rotating brush 6, it smoothly passes through the curved joint 2 and is sucked into the cleaner body.

If the suction tool main body 1 is used in close contact with a carpet with long hairs, there is no gap between the floor and the floor, and the suction airflow tends to be insufficient. Since the intake air can be replenished from the intake port 7 on the side of the tool body, the rotational force of the propeller fan 5 does not decrease,
By keeping the rotation of the rotating brush 6, dust and lint attached to the carpet can be effectively absorbed. In addition, since the intake port 7 of the propeller fan 5 does not directly contact the floor surface, it is possible to prevent a rotation trouble caused by dust and lint adhering around the rotating brush 6.

In the case of cleaning the floor surface, the rotation of the rotary brush is not necessary. However, even if the suction device main body 1 is in close contact with the floor surface, a gap for inflow of air is secured. The suction port 8 facing the rotating brush 6 is provided with a sufficient suction airflow. Accordingly, since the speed of the intake air from the intake port 7 of the propeller fan 5 is small, the propeller fan 5 is not rotated, and as a result, the rotating brush is not rotated.

Next, the hair, lint and the like clogged in the rotating brush 6 are integrated with the propeller fan 5 and the rotating brush 6.
Can be removed and cleaning can be performed, so that it takes less trouble to remove the rotating brush 6 than when the propeller fan 5 and the rotating brush 6 are connected by a transmission belt. Furthermore, since the turbine chamber which was conventionally behind the rotating brush chamber is eliminated, the suction tool main body can be reduced in size.

Further, the wheel 4 is rotatably mounted on the side surface of the suction tool main body 1 and the communication port 3 communicating with the suction port 7 is formed on the wheel 4. In addition, since the air is sucked in from the air inlet 7 facing the propeller fan 5 on the side of the suction tool main body 1 through the communication port 3 of the wheel 4, the dust on the wall side can be sucked well.

[0019]

As described above, in the suction device for a vacuum cleaner according to the present invention, when the suction device body is lifted up from the floor, the flow of intake air sucked by the vacuum cleaner is controlled by the suction of the suction device body. The rotating brush can be stopped only from the mouth, and when the suction tool main body is placed on the floor, the flow of suction air sucked by the vacuum cleaner flows from the suction port facing the propeller fan on the side of the suction tool body. Also occurs, so the rotating brush rotates.

Further, since air is taken in from the intake port facing the propeller fan through the communication port of the wheel, dust on the wall can be suctioned well. Since the rotating brush and the propeller fan are integrated, transmission loss for rotating the rotating brush is reduced, and since there is no transmission belt, the vacuum cleaner can be reduced in size and weight and maintenance can be easily performed. .

[Brief description of the drawings]

FIG. 1 is a side view of a suction tool for a vacuum cleaner according to the present invention.

FIG. 2 is a front sectional view of the vacuum cleaner suction tool of the present invention.

FIG. 3 is a side sectional view of the suction tool for a vacuum cleaner according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Suction tool main body 2 Bend joint 3 Communication port provided in wheel 4 Wheel 5 Propeller fan 6 Rotary brush 7 Suction port side of suction tool main body 8 Suction port facing rotary brush 9 Floor carpet surface

Claims (3)

[Claims] 1. A suction tool main body having a suction port on a bottom surface, a rotary brush storage chamber provided in the suction tool main body, and a rotation rotatably supported in the rotary brush storage chamber facing the suction port. A brush, a propeller fan disposed at an end of the rotating brush, and an intake port formed on a side surface of the suction tool main body so as to face the propeller fan and communicating with the rotating brush storage chamber. Vacuum cleaner suction tool. 2. The suction tool for a vacuum cleaner according to claim 1, wherein the propeller fan is disposed at both ends of the rotary brush, and suction ports are formed on both sides of the suction tool body. 3. The suction tool for a vacuum cleaner according to claim 1, wherein a wheel is rotatably mounted on a side surface of the suction tool main body, and a communication port communicating with an intake port is formed on the wheel.