JP2003038398A - Cyclone type vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cyclone type vacuum cleaner capable of easily removing dusts, and improving usability, and preventing the deterioration of a sucking force. SOLUTION: This cyclone type vacuum cleaner in which air to be sucked by a dust collecting chamber 3 is revolved in a dust collecting chamber 3 so that dusts can be separated is provided with a cylindrical part 9 arranged in the dust collecting chamber 3 for exhausting air in the dust collecting chamber 3 to an electric blower housing chamber 5, a filter 13 arranged in an opening 12 formed at the cylindrical part 9, and a caster 14 arranged so as to be freely rotatable at the lower part of the dust collecting chamber 3 of the cleaner body 1. A brush body 17 to be interlocked to a rotary shaft 15 of the caster 14, and to be brought into slide contract of the outer peripheral part of the filter 13 of the cylindrical part 9 according to the rotation of the caster 14 is arranged at the outer peripheral part of the filter 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cyclone type vacuum cleaner in which air sucked into a cleaner body is swirled in a dust collecting chamber to separate dust.

[0002]

2. Description of the Related Art Conventionally, a cyclone type vacuum cleaner of this type is disclosed in, for example, Japanese Patent Application Laid-Open No. 2001-29288 (A).
47L 9/16) are known.

In this vacuum cleaner, the air sucked into the dust collection chamber is swirled in the dust collection chamber to separate the dust in the intake air and accumulate the dust in the dust collection chamber. A concentric connecting tube (10b) in the dust collection chamber
It is adapted to be sucked into the cleaner body through the mesh-shaped exhaust port (5b).

In the above vacuum cleaner, the dust in the sucked air is accumulated in the lower part of the dust collecting chamber, but dust with a small specific gravity flows in the direction of the connecting tube (10b) together with the air. The exhaust port (5b) may be clogged with dust, which may reduce the suction efficiency.

Therefore, when removing dust from the exhaust port (5b), such as when the exhaust port (5b) is clogged,
By sliding the inner cylinder 16 slidably disposed inside the connecting pipe (10b) with respect to the connecting pipe, the exhaust port (5
The dust adhering to b) is scraped off.

However, since the exhaust port (5b) is arranged in the dust collecting chamber where dust is accumulated, there is a problem that it is difficult to visually recognize the clogging state, and it is difficult to determine the dust removal timing. Dust must be removed regularly while checking the condition of clogging of the mouth, which is troublesome in maintenance and has a disadvantage of poor usability.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and can easily remove dust, improve usability, and prevent a decrease in suction force. An object is to provide a vacuum cleaner.

[0008]

According to the present invention, there is provided a cleaner main body having a dust collecting chamber and an electric blower housing chamber for housing an electric blower, and the outside air formed in the dust collecting chamber in a tangential direction of the dust collecting chamber. An inlet port through which the air flows in, a cylindrical portion having an opening arranged in the dust collection chamber for allowing air in the dust collection chamber to pass through to the electric blower storage chamber, a filter arranged in the opening, and the cleaner body. And a caster rotatably disposed below the dust collecting chamber, the cleaning member slidingly contacting the outer peripheral portion of the filter of the cylindrical portion in conjunction with the rotation axis of the caster on the outer peripheral portion of the filter. It is characterized by having.

It is desirable that the cleaning member is arranged spirally around the filter of the cylindrical portion.

It is desirable that the cleaning member be spirally arranged in the same direction as the swirling airflow in the dust collecting chamber.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

The reference numeral 1 designates a cleaner body, which has a dust collecting chamber 3 having an upper opening having a suction port 2 in the front and an electric blower storage chamber 5 for storing an electric blower 4 in the rear. , One end of the hose 6 is detachably connected,
To the other end of the hose 6, a connecting pipe or a floor suction tool (not shown) is connected.

The dust collecting chamber 3 is formed to have a substantially circular cross section, and the air flowing in from the intake port 2 is sucked in the tangential direction of the dust collecting chamber 3 and swirls in the dust collecting chamber 3. Has become.

Reference numeral 7 is a guide member disposed in the lower part of the dust collecting chamber 3 and is formed in a substantially conical shape with a lower constriction, and the air sucked from the intake port 2 is in the dust collecting chamber 3. The dust is separated while turning, and is guided by the guide member 7 to accumulate on the bottom of the dust collection chamber 3.

Reference numeral 8 denotes a dust collection chamber cover which covers the upper opening of the dust collection chamber 3 in an openable and closable manner. The dust collection chamber cover 8 is provided with a substantially cylindrical exhaust tube portion 9 projecting into the dust collection chamber 3. It is integrally formed, and one end of the connecting pipe 11 is detachably connected to the ventilation opening 10 of the exhaust tube portion 9.

Reference numeral 12 denotes an opening formed on the side surface of the exhaust tube portion 9, and a mesh-shaped filter 13 is provided in the opening 12.
Is provided.

Reference numeral 14 denotes a caster rotatably arranged below the dust collecting chamber 3 on the bottom surface of the cleaner body 1, and a rotary shaft 15 of the caster 14 projects into the dust collecting chamber 2.

Reference numeral 16 denotes a support member which is disposed in the dust collecting chamber 3 and is attached to the rotary shaft 15 of the caster 14.
A brush body 17 that contacts the outer peripheral surface of the exhaust tube portion 9, that is, the filter 13 is disposed on the upper portion of the supporting member 16, and the brush body 17 is rotated by the movement of the cleaner body 1 during cleaning. Then, the support member 16 rotates and the brush body 17 rotates while contacting the filter 13 of the exhaust tube portion 9 to scrape off dust adhering to the filter 13.

In the present embodiment, the brush body 17 is
A pair is spirally arranged on the side surface of the exhaust tube portion 9, and dust attached to the filter 13 by the brush body 17 is rotated from the bottom to the top by the rotation of the caster 14.
Alternatively, it is scraped off from top to bottom, making it easier to remove dust.

Further, since the brush body 17 is spirally arranged from the upper side to the lower side along the direction of the air flow in the dust collecting chamber 3, it is possible to prevent the air flow in the dust collecting chamber 3. Without
The air in the dust collection chamber 3 swirls smoothly, so that dust can be efficiently separated.

Reference numeral 18 denotes a communication port formed on the upper surface of the electric blower storage chamber 5, and the other end of the connecting pipe 11 is connected to the communication port 18 so that dust is collected in the dust collection chamber 3. The air from which the air has been removed flows into the electric blower storage chamber 5 through the connecting pipe 11 and the communication port 18, and the air that has flowed into the electric blower storage chamber 5 cools the electric blower 4 and then the exhaust unit (not shown). It is designed to be exhausted from.

According to the above structure, when the electric blower 4 is driven, the air sucked from the hose 6 flows into the dust collecting chamber 3, and the dust is separated while spirally swirling in the dust collecting chamber 3. The dust is guided by the guide member 7 below the dust collection chamber 3 and accumulated at the bottom of the dust collection chamber 3.

The air from which the dust has been separated passes through the filter 12 from the opening 12 of the exhaust pipe 9 and the connecting pipe 1.
1 is sucked into the electric blower, flows into the electric blower housing chamber 5 to cool the electric blower 4, and is then discharged to the outside of the cleaner body 1.

When air flows from the dust collection chamber 3 to the exhaust tube portion 9, relatively light dust adheres to the filter 13, but is supported by the rotation of the caster 14 due to the movement of the cleaner body 1 during cleaning. The member 16 rotates, and the dust adhered to the filter 13 is scraped off by the brush body 17 arranged on the support member 16, so that the filter 13 is automatically cleaned during cleaning.
Clogging is prevented.

Further, since the brush body 17 is arranged spirally with respect to the outer peripheral surface of the filter 13, when the support member 16 rotates as the caster 14 rotates, dust attached to the filter 13 is brushed. The dust is more easily scraped off because the body 17 sequentially scrapes it upward or downward.

[0026]

According to the first aspect of the present invention, the movement of the cleaner main body during cleaning causes the cleaning member to come into sliding contact with the filter as the casters rotate, and the dust adhering to the filter is scraped off. During cleaning, it is possible to automatically prevent clogging of the filter, improve usability, and prevent a decrease in suction force.

Further, according to the second aspect of the present invention, since the cleaning body is spirally arranged with respect to the outer peripheral surface of the filter, dust attached to the filter as the caster rotates is removed. As a result, the dust is scraped off in the upward direction or the downward direction, so that the dust can be scraped off more efficiently, and a decrease in suction force can be reliably prevented.

According to the third aspect of the present invention, since the cleaning element is spirally arranged along the direction of the air flow in the dust collecting chamber, it does not block the air flow in the dust collecting chamber. By smoothly swirling the air in the dust collection chamber, dust can be efficiently separated.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an electric vacuum cleaner showing an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of the relevant part.

[Explanation of symbols]

1 Vacuum cleaner body 2 intake 3 Dust collection chamber 4 electric blower 5 Electric blower storage room 9 Exhaust tube part (tube part) 12 openings (openings) 13 filters 14 casters 17 Brush body (cleaning body)

Claims (3)

[Claims] 1. A cleaner body having a dust collection chamber and an electric blower storage chamber for storing an electric blower, an air intake port formed in the dust collection chamber, for introducing outside air in a tangential direction of the dust collection chamber, and A cylindrical portion provided in the dust collection chamber and having an opening for allowing the air in the dust collection chamber to pass to the electric blower storage chamber, a filter provided in the opening, and freely rotatable below the dust collection chamber of the cleaner body. And a caster arranged on the outer peripheral portion of the filter of the tubular portion, which is interlocked with the rotary shaft of the caster,
A cyclone-type electric vacuum cleaner comprising a cleaning member that comes into sliding contact with the outer peripheral portion of the filter as the casters rotate. 2. The cleaning member is arranged spirally around the outer periphery of the filter of the tubular portion.
Cyclone vacuum cleaner described. 3. The cyclone vacuum cleaner according to claim 2, wherein the cleaning member is arranged in a spiral shape in the same direction as the swirling airflow in the dust collecting chamber.