JP2000135184A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the dust collecting effect of a cyclone separating type dust collector by reducing dust, which is collected by the collector, sucked into a sucking side. SOLUTION: In a vacuum cleaner with the dust collector 4 by a cyclone separating system, the collector 4 is provided with a cylindrical dust collecting part 6 for connecting a suction pipe (tip pipe 7) for connecting a suction tool in the direction of the tangent of a cylinder and a communicating pipe (rear tip pipe 8) connected with its one end to communicate with the side of an electric blower. Concerning the part 6, the side of one end where the communicating pipe (pipe 8) is positioned smaller in a diameter than the other end side and a step part 6c is formed between the large diameter part and the small diameter part. In addition, a comb like projection 13 is erected on the other end side of the part 6. In addition, a comb like projection 14 is formed also at the periphery of the communicating hole 6d of the part 6c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction cleaner having a cyclone separation type dust collector, and more particularly to an improvement of a cyclone separation type dust collector.

[0002]

2. Description of the Related Art A cyclone-separated dust collector provided in a suction cleaner of this type is configured to centrifuge dust mixed in air by swirling air sucked together with dust from a suction tool in a cylindrical dust collector. The dust is separated using force, and the separated dust is collected in a dust collecting chamber below the cylindrical dust collecting portion. The air from which the dust is separated is sucked into the suction side by the electric blower.

[0003]

However, in this type of cyclone separation type dust collector, due to its structure, dust collected in the dust collection chamber, particularly light dust such as cotton, remains in the dust collection chamber. Instead, it was easily sucked into the suction side (electric blower side), and the amount was large.

Japanese Patent Application Laid-Open No. 10-85159 discloses a cyclone-separated dust collector provided on a connecting pipe of a floor-moving vacuum cleaner to enhance the dust-collecting effect by partitioning a dust-collecting chamber with an inverted conical cylinder. However, this is not sufficient.

That is, in such a conventional cyclone dust collecting system, dust swirls inside the cylinder, but when the amount of dust increases to some extent, the dust swirling in the middle of the cylinder moves toward the cleaner body. I will be sucked. In particular, light dust and fine dust such as cotton dust are easily sucked into the cleaner body.

Further, when the electric blower is turned off, dust turning in the cylinder loses centrifugal force and moves toward the center of the cylinder, and the intake air flows into the connecting pipe which does not stop immediately after the electric blower is turned off. Therefore, dust with a weak turning force is sucked into the cleaner body.

Accordingly, the present invention has been made to solve such a problem, and it is possible to reduce the suction of dust collected by a cyclone separation type dust collecting device to the suction side, and to reduce the dust collection. It is an object of the present invention to provide a suction cleaner capable of enhancing a dust effect.

Further, by providing the comb-shaped protrusions, the dust such as swirling cotton dust is entangled with the comb-shaped protrusions, and the dust such as cotton dust is sucked into the suction side during turning and when the electric blower is stopped. It is an object of the present invention to improve the dust collecting effect by preventing fine particles from adhering to the comb tooth-shaped projections by using the filter effect of the dust and the like.

[0009]

In order to achieve the above object, the present invention provides a vacuum cleaner having a cyclone separation type dust collector, wherein the dust collector is
A suction pipe connected to a suction tool, the suction pipe being connected in a tangential direction of the cylinder; and a communication pipe connected to one end of the suction section and communicating with the electric blower. The part is characterized in that one end where the communication pipe is located is smaller in diameter than the other end, and a step is formed between the large diameter part and the small diameter part.

[0010] Further, a comb-shaped projection is provided upright on the other end side of the cylindrical dust collecting portion.

Further, a comb-shaped projection is formed on the periphery of the communication hole with the small diameter portion of the step portion.

Further, the dust collector is attached to a connecting pipe of a floor moving type vacuum cleaner.

Further, the cylindrical dust collecting portion is formed of a transparent member.

[0014] Further, a detachable receiving portion is provided on the other end side of the cylindrical dust collecting portion, and a comb-shaped projection is provided upright on a bottom plate of the receiving portion.

Further, the large diameter portion is detachably attached to the step portion.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is an overall configuration diagram showing an embodiment in which a cyclone-separated dust collector is attached to a floor-moving vacuum cleaner.

This vacuum cleaner has a cleaner main body 1, a hose 2, a connecting pipe 3, and a connecting pipe 3 provided with an electric blower for suction and a dust collecting chamber using a paper pack or a filter.
And a cyclone-separated dust collector 4 attached to the floor, and a floor suction tool 5.

When the electric blower of the cleaner body 1 is driven, the air mixed with dust sucked from the floor suction tool 5 is separated into dust and air by passing through the cyclone separation type dust collector 4. Is collected and collected.

FIG. 2 shows the configuration of the cyclone separation type dust collector 4.

In the cyclone separation type dust collecting apparatus 4 in this embodiment, a cylindrical dust collecting section 6 made of a transparent member, and a floor suction tool 5 is connected to the tip of the cylindrical dust collecting section 6 at the end thereof. A front end pipe (suction pipe) 7, a rear end pipe (communication pipe) 8 inserted into the cylindrical dust collection section 6 from the upper side of the cylindrical dust collection section 6 and connected to the connecting pipe 3; A rear end pipe supporting portion 9 for supporting the dust collecting portion 8 and a trash receiving portion 1 detachably provided on the bottom side of the cylindrical dust collecting portion 6.
0 and so on.

The upper connecting portion between the cylindrical dust collecting portion 6 and the tip pipe 7 is formed such that air sucked through the tip pipe 7 is sucked in a tangential direction of the upper inner periphery of the cylindrical dust collecting portion 6. The communication hole 11 is formed.

In this embodiment, the garbage pan 1
A comb-shaped projection 13 is provided upright on the bottom plate 12, which is arranged concentrically with the dust collecting chamber 6 a of the cylindrical dust collecting section 6.

The cylindrical dust collecting section 6 is composed of two cylinders having different diameters, that is, a dust collecting chamber 6a having a large diameter and a cylindrical dust collecting body 6b having a small diameter. A step 6c is formed between them. Further, a downward second comb tooth-shaped projection 14 is formed on the periphery of the communication hole 6d of the step portion 6c with the cylindrical dust collecting portion main body 6b.

With the above structure, when the electric blower of the cleaner main body 1 operates, the dust sucked together with the air from the floor suction tool 5 passes through the tip pipe 7 and the tip pipe 7 and the cylindrical dust collecting part. 6 and the cylindrical dust collecting portion 6
Get in.

The dust that has entered the cylindrical dust collecting portion 6 together with the suction air has the communicating hole 11 opened in the tangential direction of the inner periphery of the cylindrical dust collecting portion 6 and the suction port 8a of the rear end pipe 8 having the suction port 8a. Since it is located below, the dust swivels downward along the inner wall of the cylindrical dust collecting unit 6, and the dust in the intake is subjected to the force of the centrifugal force and the force of pressing the dust collecting unit 10 toward the dust collecting unit 10. Accumulates inside.

The air from which dust has been removed passes through the rear end pipe 8, the connecting pipe 3, and the hose 2, and is sucked into the cleaner body 1. The dust receiving portion 10 is detachable, and the accumulated dust can be discarded at any time.

Here, in the present embodiment, since the comb-shaped projections 13 are provided upright on the bottom plate 12 of the dust receiving tray 10 so as to be concentric with the dust collecting chamber 6a, the dust receiving tray 10 is turned while rotating. Dust to be accumulated, especially cotton dust, etc.
It accumulates so that it is entangled with 3.

Further, the comb-like projections 1 on the bottom side of the dust collecting chamber 6a
The dust that could not be collected in step 3 also has a step 6c formed between the dust collecting chamber 6a and the cylindrical dust collecting unit main body 6b. Dust chamber 6
a is less likely to appear. Moreover, since the comb-shaped protrusions 14 are also formed on the periphery of the communication hole 6d to the cylindrical dust collecting portion main body 6b, dust such as cotton which could not be collected by the comb-shaped protrusions 13 on the bottom side of the dust collecting chamber 6a. Also, the dust collecting effect can be further improved because the dust can be collected by being entangled with the comb-shaped projections 14.

Therefore, it is possible to prevent the relatively light dust such as cotton dust from being sucked into the cleaner body 1 side from the rear end pipe 8 in a double and triple manner.
Since the dust and the like collected by being entangled in 3 and 14 has a filter effect, fine dust other than the cotton dust can be adsorbed by using the filter effect, so that light dust and heavy dust are well collected. Therefore, dust collection efficiency is greatly improved. This is also true when the electric blower is stopped as described in the related art.

Cyclone-separated dust collector 4 as described above
By improving the dust collection efficiency, the life of the paper pack mounted on the cleaner main body 1 can be extended and the paper pack can be eliminated.

Further, since the cylindrical dust collecting portion 6 is formed of a transparent member (transparent resin or the like), the amount of dust accumulated in the dust collecting chamber 6a can be directly checked by eyes, and the result of cleaning and the disposal of dust are removed. It is convenient to know the time at a glance.

When the dust collected in the dust collecting chamber 6a is to be discarded, the dust collecting pan 10 is detachably mounted. The collected garbage can be easily thrown away.

Further, since the dust collecting chamber 6a is detachably attached to the step 6c, the dust collecting chamber 6a is removed together with the dust collected in the dust collecting chamber 6a, or the comb-like teeth formed in the step 6c. The dust collected by the protrusions 14 can be easily thrown away.

By the way, in the above embodiment, only one row of the comb-shaped projections 13 is arranged concentrically with the dust collection chamber 6a, but a plurality of the comb-shaped projections 13 are arranged concentrically with the dust collection chamber 6a. At the same time, the comb-shaped projections 13 may be randomly arranged, or the comb-shaped projections 13 may be arranged radially. Furthermore, the comb-shaped projections 13 are arranged in, for example, an elliptical shape or a rectangular shape with respect to the cylindrical dust collecting chamber 6a so as not to be concentric, and a portion that intersects the concentrically swirling air flow is provided. In this case, dust and the like may be more easily entangled with the comb-shaped projections 13.

In the above-described embodiment, the case where the present invention is applied to a floor moving type vacuum cleaner has been described. However, the present invention is also applied to a vertical type vacuum cleaner having a cyclone separation type dust collector in a cleaner body. It is possible.

[0037]

As described above, according to the present invention, as a cyclone-separated dust collector used in a vacuum cleaner, a cylindrical dust collector in which a suction pipe to which a suction tool is connected is connected in a tangential direction of a cylinder. And a communication pipe connected to one end of the cylindrical dust collecting portion and communicating with the electric blower side, wherein the cylindrical dust collecting portion has one end where the communication pipe is located smaller than the other end, and a large diameter portion. By forming a step between the small diameter part and the small diameter part, the dust once entering the large diameter part which becomes the dust collection chamber becomes difficult to escape by the step part, so the dust collection effect of the dust collection device by the cyclone separation method is improved. Can be enhanced.

Further, by providing a comb-shaped projection on the other end side of the cylindrical dust collecting portion, that is, on the bottom side of the dust collecting chamber,
Dust collected in the dust collection chamber, especially light dust such as cotton dust, can be reduced from being entangled with the comb-shaped projections and sucked into the suction side, so that the dust collection effect can be further improved.

Further, by forming a comb-shaped projection on the periphery of the communication hole with the small-diameter portion of the stepped portion, dust and the like that could not be collected by the comb-shaped projection on the bottom side of the dust collection chamber. Dust can also be collected by the comb-shaped projections around the communication hole,
The dust collecting effect can be further improved.

Further, since the dust collecting device is attached to the connecting pipe of the floor moving type vacuum cleaner, a disposable dust collecting paper pack is generally used on the main body side of the floor moving type vacuum cleaner. It is possible to achieve a longer life and a less paper pack.

Further, since the cylindrical dust collecting portion is formed of a transparent member, the amount of dust accumulated therein can be directly checked by eyes, so that it is convenient to know at a glance the result of cleaning and the time of disposal of dust. .

Also, a detachable receiving tray is provided on the bottom side of the dust collecting chamber, and the comb-shaped projections are erected on the bottom plate of the receiving tray. The garbage collected in the area can be easily thrown away.

In addition, since the dust collecting chamber is detachably attached to the step, the dust collecting chamber is removed and the dust collected in the dust collecting chamber and the comb-shaped projections formed in the step collect the dust. It is easier to dispose of the waste.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a suction cleaner according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a cyclone separation type dust collector attached to the suction cleaner of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body part 2 Hose part 3 Connecting pipe 4 Cyclone separation type dust collector 5 Floor suction tool 6 Cylindrical dust collecting part 6a Dust collecting chamber 6b Cylindrical dust collecting part main body 6c Step part 6d Communication hole 7 Tip pipe 8 Rear end Pipe 9 Rear end pipe support part 10 Dust receiving part 11 Communication hole 12 Bottom plate 13, 14 Comb-like projection

Claims (7)

[Claims] 1. A suction cleaner having a cyclone separation type dust collector, wherein the dust collector includes a cylindrical dust collector in which a suction pipe to which a suction tool is connected is connected in a tangential direction of a cylinder; A communication pipe connected to one end of the cylindrical dust collecting part and communicating with the electric blower side, wherein the cylindrical dust collecting part has one end where the communication pipe is located smaller than the other end and a large diameter part. A suction cleaner characterized in that a step portion is formed between the small diameter portion and the small diameter portion. 2. The suction cleaner according to claim 1, wherein a comb-shaped projection is provided upright on the other end side of the cylindrical dust collecting portion. 3. The suction cleaner according to claim 1, wherein a comb-shaped projection is formed on a periphery of the communication hole with the small diameter portion of the step portion. 4. The suction cleaner according to claim 1, wherein the dust collector is attached to a connecting pipe of a floor-moving vacuum cleaner. 5. The suction cleaner according to claim 1, wherein the cylindrical dust collecting portion is formed of a transparent member. 6. A comb-shaped projection is provided on a bottom plate of the receiving tray portion, wherein a detachable receiving tray portion is provided on the other end side of the cylindrical dust collecting portion. 6. The suction cleaner according to any one of 5 above. 7. The suction cleaner according to claim 1, wherein the large-diameter portion is detachably attached to the step portion.