JP2002369780A - Dust collecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a backflow of dust within a dust collecting chamber 36 when housing in a dust collecting device in which a rotating brush housing chamber 39 and a dust collecting chamber 36 are placed side by side inside a body of equipment 11, a rotating brush 2 is arranged in the rotating brush housing chamber 39, and it is possible to collect in the dust collecting chamber 36 dust on a floor through an air current passing port 34 by sweeping up by rotation of the rotating brush 2. SOLUTION: In a dust collecting device with which the present invention is concerned, a dust catching wall 70 is projected toward the inside of the dust collecting chamber 36 onto an upper end part 80a of a wall surface 80, among wall surfaces surrounding the dust collecting chamber 36, which is established on the rotating brush housing chamber 39 side and rises toward the air current passing port 34.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collector having a rotary brush.

[0002]

2. Description of the Related Art As a dust collector of this type, the applicant has filed a patent application for a dust collector (10) as shown in FIG. The dust collecting device (10) includes a housing (12), a rotating brush (2) provided in the housing (12), and a dust collecting chamber (36) formed inside the housing (12).
The housing (12) includes a motor (32) for rotating and driving the rotary brush (2), and a secondary battery (33) for supplying power to the motor (32). Is built-in. Housing
On the bottom wall (15) of (12), a dust suction port (3) is opened, and an air flow guide wall (81) extending upward toward the inside of the housing (12) is protrudingly provided, In four corners of the bottom wall (15), running rollers (41) are provided to facilitate movement of the dust collecting device (10). Inside the housing (12), a rotary brush storage chamber (39) having an opening at the dust suction port (3) is formed, and the airflow guide wall (81) is provided in the rotary brush storage chamber.
(39) and the dust chamber (36) are partially partitioned.

The rotating brush (2) has a rotating shaft (22) and a rotating shaft.
A brush part (21) formed on the outer peripheral surface of (22),
(22) is connected to the motor (32) using a belt (not shown), and the outer peripheral end (21a) of the brush part (21) of the rotating brush (2) is connected to the dust suction port (3). It protrudes slightly. Garbage suction port located behind the rotating brush (2)
At the opening edge of (3), a refuse collecting member (31) is provided so as to project toward the floor surface (5). A plurality of exhaust ports (38) are opened on the upper wall of the dust collection chamber (36) of the housing (12), and a filter (37) is attached to the wall where the exhaust ports (38) are opened. ing.

In the dust collector (10), a rotating brush
By rotating (2) in the direction indicated by the arrow,
From the dust suction port (3) to the dust collection chamber (3)
6) An airflow flowing into the inside is formed. As a result, the dust swept up by the rotation of the rotating brush (2) is guided by the wall of the airflow guide wall (81) and flows into the dust collection chamber (36), and passes through the airflow passage (34). After that, it is collected in the dust collection chamber (36). The air in the dust collection chamber (36) passes through the filter (37) and is discharged from a plurality of exhaust ports (38) formed in the upper wall of the dust collection chamber (36). In storing the dust collecting device (10), the operation handle (6) is tilted in the direction indicated by the two-dot chain line arrow, and the housing (12) is moved to the front side of the housing (12) as shown in FIG. 14) is raised to a position where it comes into contact with the floor (5), and becomes independent. Thereby, the space required for storing the dust collecting device (10) can be reduced.

[0005]

However, when the dust collecting device (10) is stored upright, the rotating brush storage chamber is not provided.
The dust collection chamber (36) is located above the dust collection chamber (39), and the dust in the dust collection chamber (36) moves on the wall (80) of the airflow guide wall (81). The part may fall from the airflow passage (34) and flow back to the rotating brush storage chamber (39). Also, when the portable device is carried with the dust collecting device (10) set up, the dust collecting chamber (3) is set in the same manner as when the dust collecting device (10) is stored upright.
The dust in 6) sometimes returned to the rotating brush storage chamber (39). Further, as shown in FIG. 5, when the dust collector (10) is moved in a laid posture, dust is jumped up in the dust collecting chamber (36) due to an impact when climbing over a step or the like. In some cases, the water flowed backward from the passage opening (34) to the rotating brush storage chamber (39). Therefore, an object of the present invention is to provide a dust collecting apparatus in which dust in a dust collecting chamber does not flow backward.

[0006]

The dust collecting apparatus according to the present invention comprises:
A dust suction port (3) is opened on the bottom wall (13) of the housing (11), and a rotating brush storage chamber (39) and a dust collection chamber (36) are installed inside the housing (11). The rotating brush storage chamber (39) is an airflow passage
The rotating brush (2) is disposed in the rotating brush accommodating chamber (39), and is connected to the dust collecting chamber (36) through the rotating brush (34).
The outer peripheral end (21a) of (2) faces the dust suction port (3), sweeps up dust on the floor surface by the rotation of the rotating brush (2), and passes through the airflow passage (34) to the dust collection chamber. It is possible to collect in (36). Of the wall surrounding the dust collection chamber (36), the upper end (80a) of the wall (80) standing upright on the rotating brush storage chamber (39) and rising toward the airflow passage (34) has a Dust chamber (36)
A garbage receiving wall (70) protrudes toward the inside of the vehicle.

In the dust collecting apparatus of the present invention, when the dust collecting chamber (36) is positioned above the rotating brush accommodating chamber (39), the dust in the dust collecting chamber (36) is covered with the wall ( Although it will move upward, the dust receiving wall (70) is protruded toward the inside of the dust collection chamber (36) at the upper end (80a) of the wall (80), The trash on the wall (80) is the trash receiving wall (70)
And does not fall from the airflow passage (34). In this way, backflow of dust in the dust collection chamber (36) to the rotating brush storage chamber (39) is prevented.

In a specific configuration, the wall surface (80) rises from the bottom wall (13) of the housing (11) to form a dust suction port.
The airflow guide wall (8) for guiding the airflow from (3) almost vertically upward
It is the side of 1). According to the specific configuration, after the airflow flowing from the dust suction port (3) into the rotating brush storage chamber (13) is guided substantially vertically upward along the airflow guide wall (81), the dust collection chamber (36) Since it flows into the inside, the direction of the airflow is aligned in one direction. As a result, the flow rate of the airflow increases, and a suction airflow is generated at the dust suction port (3). The dust on the floor is collected in the dust collecting chamber (36) by the air flow, so that the dust collecting efficiency is sufficiently increased.

Another dust collecting apparatus according to the present invention has a dust inlet (3) formed in a bottom wall (13) of a housing (11) and a dust inlet (3).
Inside the (11), a rotating brush storage chamber (39) and a dust collection chamber (36) are provided side by side, and the rotating brush storage chamber (39) is connected to the dust collection chamber (36) through the airflow passage (34). A rotating brush (2) is provided in the rotating brush storage chamber (39), and an outer peripheral end (21a) of the rotating brush (2) faces the dust suction port (3).
The dust on the floor can be swept up by the rotation of (2) and collected in the dust collecting chamber (36) through the airflow passage (34).
A dust check valve (71) is provided at the airflow passage (34), and the dust check valve (71) opens the airflow passage (34) during the dust collection operation, and the dust collection chamber is opened. (36) is a rotating brush storage room (39)
The airflow passage opening (34) is closed with the housing (11) standing upright so as to be positioned above.

In the other dust collecting apparatus according to the present invention, since the air flow passage opening (34) is open during the dust collecting operation, the dust suction opening (3) is rotated with the rotation of the rotating brush (2). ) Through the air flow passage (34) into the dust collection chamber (36), and the dust is collected by the dust collection chamber (36) along the air flow. On the other hand, the dust collection chamber (36) is the rotating brush storage chamber (39)
When the storage position is located above the
Since (71) blocks the airflow passage (34), the dust in the dust collection chamber (36) is received by the dust check valve (71), and the rotating brush storage chamber (39) is passed through the airflow passage (34). Do not flow back to).

[0011] In a specific configuration, the refuse check valve (71)
Is constituted by a flexible sheet, and the flexible sheet has one end (71a) as a fixed end and the other end (71a) as a fixed end.
With b) as a free end, it can be opened to the dust collection chamber (36) side. According to the specific configuration, during the dust collection operation, the rotating brush
The flexible sheet is deformed by the wind pressure of the airflow generated by the rotation of (2), the free end (71b) of the sheet opens to the dust collection chamber side, and the airflow passage opening (34) opens. by this,
From the dust suction port (3) to the dust collection chamber (3)
The flow path of the airflow flowing into 6) is secured. When the dust collection operation is stopped, or when the dust collection chamber (36) is
When the housing (11) is placed in the position where is located, the flexible sheet returns to the original position by its own weight or elastic restoring force, and closes the airflow passage (34).

[0012]

According to the dust collecting apparatus of the present invention, the dust collecting chamber
(36) The dust in the rotating brush storage chamber (3
There is no backflow to 9).

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below.
Next, a specific description will be given with reference to the drawings.First embodiment  As shown in FIG. 1, the dust collecting apparatus according to the present invention has a housing (11).
And a rotating brush (2) housed in a housing (11).
The handle (6) is attached to the housing (11) via the mounting part (61).
Mounted on top. Inside the housing (11), there is a rotating
A rotating brush storage chamber (39) for storing brushes (2) and garbage
A dust chamber (36) for storing the dust is formed, and the rotating
A motor (32) for rotating the brush (2);
A secondary battery (33) for supplying power to 2) is accommodated.
The rotating brush (2) includes a rotating shaft (22) and an outer peripheral surface of the rotating shaft (22).
And a brush part (21) formed on one of the rotating shafts (22).
Is connected to the rotation shaft of the motor (32) via a belt.
Is tied. The brush part (21) is on the outer peripheral surface of the rotating shaft (22).
It is constituted by a formed flocking row (not shown)
The rows extend helically in the direction of the axis of rotation.

An air flow guide wall (81) is provided on the bottom wall (13) of the housing (11).
Are protruded upward toward the inside of the housing (11).
The airflow guide wall (81) has a cylindrical surface coaxial with the rotation shaft (22) of the rotating brush (2), is formed integrally with the bottom wall (13) of the housing (11), and has a rotating brush housing chamber ( It partially partitions between 39) and the dust collection chamber (36). At the tip of the airflow guide wall (81), the dust collection chamber (3
A dust receiving wall (70) extending substantially parallel to the bottom wall (13) is formed toward the inside of (6). A dust suction port (3) is formed on the bottom wall (13) of the housing (11), and the tip of the brush section (21) projects from the dust suction port (3). A refuse collecting member (31) protrudes toward the floor (5) at an opening edge behind the refuse suction port (3). or,
At four corners of the bottom wall (13) of the housing, running rollers (41) are provided.

The housing (11) has a brush cover wall (83) facing the rotary brush accommodating chamber (39) and covering an upper portion of the rotary brush (2).
Is provided. Brush cover wall (83) is a rotating brush
It is formed in a cylindrical surface coaxial with the rotation shaft (22) of (2),
An airflow passage (34) is provided between the end (83a) of the brush cover wall (83) on the dust collection chamber (36) side and the upper end (81a) of the airflow guide wall (81).
Are formed. Multiple exhaust ports on the upper wall of the dust collection chamber (36)
(38) is opened, and a filter (37) is attached to the wall surface where the exhaust port (38) is opened. When the dust collector (1) of the present embodiment is stored, the operation handle (6) is tilted in the direction of the arrow indicated by the two-dot chain line in FIG. 1, and the housing (11) is moved as shown in FIG. Raise the front surface (14) of the body (11) so that it is in contact with the floor surface (5) and stand alone.

In the dust collecting apparatus (1) of this embodiment, the rotating brush (2) is driven to rotate, so that the dust collecting chamber (36) passes through the air inlet (34) from the dust inlet (3). An airflow flowing into the inside is formed. Here, the airflow flowing from the dust suction port (3) is guided substantially vertically upward along the wall of the airflow guide wall (81), and the direction of the airflow is aligned, so that the flow rate of the airflow increases, A suction airflow is generated at the dust suction port (3). As a result, debris swept up by the rotation of the rotating brush (2) in the direction of the arrow becomes the airflow guide wall.
Guided almost vertically upward along the wall of (81), the airflow passage
After passing through (34), it is collected in the dust collecting chamber (36). The air in the dust collection chamber (36) passes through the filter (37) and is discharged from a plurality of exhaust ports (38) formed in the upper wall of the dust collection chamber (36).

When the dust collector (1) is stored, the housing (11) is made to stand by itself as shown in FIG. This allows the dust collection chamber
(36) is located above the rotating brush storage chamber (39), and the refuse (53) accumulated on the bottom wall (13) of the housing (11)
Move on the wall (80) of the airflow guide wall (81) as shown in FIG.
Since it is received by the dust receiving wall (70) protruding from (81a), it does not fall from the airflow passage (34). In this way, backflow of dust to the rotating brush storage chamber (39) during storage is prevented.

[0018]Second embodiment  As shown in FIG. 3, the dust collecting apparatus of this embodiment
The refuse check valve (71) composed of
It is installed in a closed state. The dust check valve (71) is
Part as a fixed end (71a), the wall surface above the airflow passage (34)
And the lower end is a free end (71b).
It is in contact with the upper end (81a) of the flow guide wall (81). In addition, garbage
The check valve (71) is driven by the rotation of the rotating brush (2).
Flexible enough to be deformed by the wind pressure of the generated air flow
ing. In the dust collector of the present embodiment, a dust check valve
The components other than (71) are the same as those of the dust collector of the first embodiment.
Therefore, the same reference numerals are given and the description is omitted.

In the dust collecting apparatus (1) of this embodiment, the dust check valve (71) hangs down by its own weight when the dust collecting operation is stopped, as shown by the solid line, and closes the air flow passage (34). During the dust collection operation, the rotary brush (2) is driven to rotate, so that the dust suction port (3) is connected to the air flow passage port (3).
An airflow toward 4) is generated. Due to the wind pressure of the air flow, the dust check valve (71) is deformed as shown by a two-dot chain line, and the air flow passage opening (34) is opened. By this, garbage suction port (3)
Then, an airflow that flows into the dust collection chamber (36) through the airflow passage (34) is formed. Since the airflow is aligned in one direction by the airflow guide wall (81), the flow rate increases, and the dust suction port
In (3), a suction airflow is generated. As a result, the dust swept up by the rotation of the rotating brush (2) in the direction of the arrow is collected in the dust collection chamber (36) through the airflow passage (34),
The air in the dust collection chamber (36) is discharged from the exhaust port (38) through the filter (37).

When the dust collecting device (1) is stored, the housing (11) is made to stand alone as shown in FIG.
6) is located above the rotating brush storage chamber (39), and the debris (53) accumulated on the bottom wall (13) of the housing (11)
However, as shown in FIG. 4, it moves on the wall surface (80) of the airflow guide wall (81). So these trash (53)
Is received by the refuse check valve (71) and does not fall from the airflow passage (34). In this way, backflow of dust to the rotating brush storage chamber (39) during storage is prevented. The dust check valve (71) has a strength that does not significantly bend due to the weight of the dust, and the free end (71b) rotates beyond the upper end (81a) of the airflow guide wall (81). It overlaps with the upper end portion (81a) of the airflow guide wall (81) with a sufficient area so as not to move to the brush storage chamber (39) side.

In the first and second embodiments, the case where the dust collecting device is housed has been described as an example.
When carrying the dust collection device in the upright position, the dust in the dust collection chamber (36) is handled by the same operation as when the dust collection device is stored.
Backflow of (53) to the rotating brush storage chamber (39) is prevented. Further, when the dust collecting device moves over a step or the like in the dust collecting operation posture as shown in FIGS. 1 and 3, the dust (53) jumped up in the dust collecting chamber (36) is attached to the dust receiving wall (70). The dust (53) is received by the debris check valve (71), so that the debris (53) is prevented from flowing back to the rotating brush storage chamber (39) through the airflow passage (34).

The configuration of each part of the present invention is not limited to the above embodiment, and various modifications can be made within the technical scope described in the claims. For example, the rotating brush is not limited to a configuration driven by a motor as in the first embodiment and the second embodiment. For example, a so-called turbo brush that rotates by being given a rotating force by an airflow may be used. The configuration used may be used. Further, the dust check valve employed in the dust collector of the second embodiment is not limited to the structure in which the airflow opening is opened and closed by wind pressure. The mouth may be opened and closed. Alternatively, the check valve may be opened and closed by gravity of a weight attached to the check valve.

[Brief description of the drawings]

FIG. 1 is a sectional view of a dust collector according to the present invention.

FIG. 2 is an enlarged sectional view of the dust collector.

FIG. 3 is a sectional view of another dust collecting apparatus according to the present invention.

FIG. 4 is an enlarged sectional view of the dust collector.

FIG. 5 is a sectional view of a conventional dust collector.

FIG. 6 is an enlarged sectional view of the dust collector.

[Explanation of symbols]

 (1) Dust collector (11) Housing (13) Bottom wall (2) Rotary brush (3) Dust suction port (34) Air flow port (36) Dust collection chamber (39) Rotary brush storage chamber (70) Dust Receiving wall (71) Waste check valve (81) Air flow guide wall (83) Brush cover wall

Claims (4)

[Claims] 1. A dust inlet on a bottom wall (13) of a housing (11).
(3) is opened, and a rotating brush storage chamber (39) and a dust collection chamber (36) are installed inside the housing (11).
(39) is connected to the dust collecting chamber (36) through the air flow passage (34), and the rotating brush (2) is provided in the rotating brush storage chamber (39), and the outer peripheral end of the rotating brush (2) The part (21a) faces the dust suction port (3), sweeps up dust on the floor by rotating the rotary brush (2), and passes through the air flow passage (34) to the dust collection chamber (3).
6) In the dust collecting device that can be collected in the dust collecting chamber (36)
The wall (80), which rises toward the airflow passage (34) and rises toward the airflow passage (34), of the wall that surrounds the dust collection chamber (36) A dust collector, wherein a dust receiving wall (70) protrudes toward the inside. 2. The air flow guide wall (81) rising from the bottom wall (13) of the housing (11) to guide the air flow from the dust suction port (3) substantially vertically upward. The dust collector according to claim 1, which is a surface of the dust collector. 3. A dust inlet on the bottom wall (13) of the housing (11).
(3) is opened, and a rotating brush storage chamber (39) and a dust collection chamber (36) are installed inside the housing (11).
(39) is connected to the dust collecting chamber (36) through the air flow passage (34), and the rotating brush (2) is provided in the rotating brush storage chamber (39), and the outer peripheral end of the rotating brush (2) The part (21a) faces the dust suction port (3), sweeps up dust on the floor by rotating the rotary brush (2), and passes through the air flow passage (34) to the dust collection chamber (3).
In the dust collector capable of collecting in (6), a dust check valve (71) is provided at the airflow passage (34),
The dust check valve (71) is an airflow passage (34) during dust collection operation.
A dust collecting device, wherein the dust collecting chamber (36) is closed and the air flow passage opening (34) is closed in a posture in which the housing (11) is set up so that the dust collecting chamber (36) is located above the rotating brush accommodating chamber (39). . 4. The refuse check valve (71) is formed of a flexible sheet, the flexible sheet having one end (71a) as a fixed end and the other end (71b) as a free end.
The dust collector according to claim 3, wherein the dust collector can be opened toward the dust collecting chamber (36).