JP2002051950A - Electric vacuum cleaner - Google Patents

Abstract

(57) [Problem] To provide an electric vacuum cleaner capable of accumulating more dust in a compact cyclone dust collecting part. SOLUTION: An operation part 51 slidable up and down is provided at an upper end of an operation rod 52 inserted into an operation room 50 provided on a side surface of a cyclone dust collecting part 5. Has a partition 9 fixed. The operation unit 51 includes a spring 54
Urged upward by The partition 9 can be lowered by sliding the operation unit 51 downward if necessary, and the dust accumulated in the cyclone dust collection unit 5 can be compressed and reduced in volume. Thereby, the empty volume in the cyclone type dust collection part 5 increases, and dust can be further accumulated without throwing away dust. Therefore, the number of times that the dust in the cyclone type dust collecting unit 5 is discarded can be reduced, and the size of the cyclone type dust collecting unit 5 itself can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner having a cyclone type dust collecting section for turning an intake air to separate dust.

[0002]

2. Description of the Related Art Conventionally, there has been proposed an electric vacuum cleaner having a cyclone dust collecting portion for separating dust by swirling intake air driven by an electric blower. FIG. 10 is a schematic view showing an example of such a conventional vacuum cleaner. A connection pipe 3 is provided at a suction port body 4 having a suction port (not shown) facing the floor surface F.
Is connected. A cyclone dust collecting part 5 is connected to the connection pipe 3.

The cyclone dust collecting section 5 communicates with the vacuum cleaner main body 1 having the electric blower 1a via a connecting member 10 and a suction hose 2 to form an intake passage. The handle 10a is formed by bending a part of the connecting member 10 to be gripped by a user. The handle 10a has an operation unit 10g having operation keys for performing various operations and a display unit for displaying a driving situation. Have been.

The details of the cyclone dust collecting section 5 are shown in a side sectional view of FIG. 11 and a top sectional view of FIG. The cyclone dust collecting portion 5 has an intake guide 20 having an inlet 5a formed at an upper portion, and is connected to the connection pipe 3 by the intake guide 20. Further, the cyclone dust collecting portion 5 is formed in a substantially cylindrical shape, and is arranged substantially in parallel with the connection pipe 3.
The intake air flows from the inflow port 5a toward the tangential direction of the inner wall 5c of the cyclone dust collecting section 5. As a result, the intake air turns while colliding with the inner wall 5c of the cyclone dust collecting portion 5, and separates the dust by centrifugal force to cause the first dust.
It accumulates in the dust collecting chamber 7.

[0005] A connecting pipe 10b communicating with the connecting member 10 includes:
The suction guide 20 extends from substantially the center of the upper surface of the cyclone dust collecting section 5
It is erected in. Reference numeral 20a denotes a cylindrical holding portion provided on the intake guide 20 so as to communicate with the connecting pipe 10b. The exhaust tube 15 is detachably screwed to the holding portion 20a via the packing 6. Has become.

An exhaust port 5b made of a mesh having air permeability is provided on a side surface of the exhaust tube 15. When the electric blower 1a is driven, intake air is taken in from the intake port (not shown) of the intake port body 4 as shown by an arrow f1, and the intake air passes through the connection pipe 3 from the inflow port 5a to the cyclone dust collecting section 5. Inflow. After the dust is separated and removed while turning the intake air in the cyclone dust collecting unit 5, the dust is reflected by the partition wall 9 and rises, and the air is exhausted from the exhaust port 5b to the connecting pipe 10b, the suction hose 2 and the like.
, And is discharged from the vacuum cleaner main body 1 to the outside as indicated by an arrow f2 by the suction force of the electric blower 1a.

Reference numeral 8 denotes a second dust collecting chamber provided coaxially with the first dust collecting chamber 7 via a partition 9. The partition 9 is the first dust collection chamber 7
13, is formed integrally with the inner wall of the first dust collecting chamber 7, and has an opening 9a opened in the turning direction of the air flow as shown in the perspective view of FIG. Therefore, the first
Of the dust collected in the dust collection chamber 7, relatively large dust such as a piece of paper passes through the opening 9 a of the partition 9 and is stored in the second dust collection chamber 8.

[0008]

The amount of dust accumulated in the cyclone dust collecting section 5 is limited to the integral of the contents of the first and second dust collecting chambers 7 and 8; Dust collection chamber 7,
Unnecessarily increasing the inner volume of the vacuum cleaner 8 causes an increase in the weight of the cyclone dust collector 5 and lowers the operability of the vacuum cleaner. There was a problem that it could not be stored inside.

The dust that flows into the cyclone dust collecting section 5 together with the intake air driven by the electric blower 1a contains extremely fine dust. Since such fine dust is very light, the cyclone dust is very light. The centrifugal force generated by the airflow swirling in the dust collecting unit 5 cannot separate the mesh sufficiently, and when the air is exhausted from the exhaust pipe 15, it sticks to the mesh of the exhaust port 5 b and the mesh is clogged.

Therefore, it is essential to periodically clean the exhaust pipe 15. However, when the first and second dust collecting chambers 7 and 8 are removed from the cyclone dust collecting section 5 and the exhaust pipe 15 is cleaned, the exhaust port 5 is not cleaned.
Not only was fine dust adhering to b scattered and soiling the surroundings, and it was unsanitary because it adhered to hands and clothes, and it took considerable time to clean by hand.

The present invention has been made in view of the above-mentioned conventional problems, and has as its object to provide an electric vacuum cleaner capable of accumulating more dust in a compact cyclone dust collector. Another object of the present invention is to provide a vacuum cleaner that can perform maintenance-free cleaning of an exhaust port from which an airflow flowing into a cyclone dust collecting unit is exhausted.

[0012]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a suction port having an air inlet, an electric blower for generating intake air, and an air blower provided between the suction port and the electric blower. The dust accumulated in the cyclone type dust collecting unit in a vacuum cleaner having a suction path which is provided and a cyclone type dust collecting unit which separates dust by swirling intake air which is arranged in the air intake path. The compression means is provided.

[0013] The present invention also provides a suction port having an intake port, an electric blower for generating intake air, an intake path provided between the suction port body and the electric blower, and an air passage provided in the intake path. A cyclone-type dust collecting part for separating dust by swirling intake air that has been flowed into the exhaust chamber, wherein an exhaust port communicating with the inside and outside of the cyclone-type dust collecting part and having an exhaust port is provided; A compression means is provided for compressing the dust accumulated in the dust collecting unit.

According to the above configuration, the dust that has flowed into the cyclone type dust collecting unit together with the intake air by driving the electric blower is separated while turning, and is accumulated in the cyclone type dust collecting unit. Then, the dust is compressed by moving the compression means to reduce its volume, and the empty volume of the cyclone type dust collecting part increases.

[0015] The compression means is characterized in that a compression member disposed in the cyclone type dust collecting section and an operation section interlocked with the compression member are disposed outside the cyclone dust collecting section.

According to this configuration, by operating the operation unit disposed outside the cyclone type dust collecting unit, the compression member disposed inside the cyclone type dust collecting unit is moved, and the dust accumulated in the cyclone type dust collecting unit is removed. Compressed to reduce volume.

Further, the compression means is provided above the cyclone type dust collecting portion and is operatively connected to the intake passage via the cyclone type dust collecting portion, and is urged downwardly of the working chamber. It is characterized by comprising a float, a connecting rod having one end fixed to the float, and a compression member attached to the other end of the connecting rod.

According to this structure, when the electric blower is driven, the working chamber becomes negative pressure by the intake air, the float is sucked up against the bias and rises, and the compression member rises in conjunction with this. Then, when the electric blower is stopped, the float is lowered by the urging, and in conjunction with this, the compression member is lowered, and the dust accumulated in the cyclone type dust collector is compressed and reduced in volume.

In this case, when the connecting rod is inserted through the exhaust pipe, it is easy to secure a space for the connecting rod to move up and down in the cyclone dust collecting portion.

Further, the present invention is characterized in that a cleaning means for cleaning the exhaust port of the exhaust pipe which moves in conjunction with the compression means is provided. According to this, when the electric blower is driven / stopped, the cleaning means moves in conjunction with the compression means, and the exhaust port of the exhaust pipe is automatically cleaned. in this case,
The cleaning means may be connected to the float.

Further, the present invention provides a suction port having an air intake port, an electric blower for generating intake air, an intake path provided between the suction port body and the electric blower, and an air passage provided in the intake path. A cyclone-type dust collector for separating dust by swirling the intake air that has been introduced and flowing, wherein an exhaust pipe communicating with the inside and outside of the cyclone-type dust collector and having an exhaust port formed therein; Cleaning means for cleaning the exhaust port of the cylinder.

According to this configuration, the dust that has flowed into the cyclone type dust collecting unit together with the intake air by driving the electric blower is separated while turning, and is accumulated in the cyclone type dust collecting unit. Then, the intake air that has flowed into the cyclone type dust collection unit is exhausted from an exhaust pipe to an intake path outside the cyclone type dust collection unit. Further, the exhaust port of the exhaust pipe is cleaned by the cleaning means.

[0023] The cleaning means is provided above the cyclone-type dust collecting part and communicates with the intake passage via the cyclone-type dust collecting part. A float, a connecting arm extending vertically into the cyclone dust collecting portion so as to keep a predetermined distance from the float to the exhaust port of the exhaust stack, and a connecting arm extending toward the exhaust port of the exhaust stack. It is characterized by comprising a brush attached.

According to this structure, when the electric blower is driven, the working chamber becomes negative pressure by the intake air, the float is sucked up against the bias and rises, and the cleaning means rises in conjunction with this. The exhaust port of the exhaust stack is cleaned. Then, when the electric blower is stopped, the float is lowered by the urging, and in conjunction with this, the cleaning means is lowered to clean the exhaust port of the exhaust pipe.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS <First Embodiment> A first embodiment of the present invention
An embodiment will be described with reference to the drawings. This embodiment is characterized in that the cyclone dust collecting portion has a structural feature, and the other configuration is the same as the conventional vacuum cleaner shown in FIG. 9. And a detailed description thereof will be omitted.

FIG. 1 is a side sectional view of a cyclone dust collecting portion according to the present embodiment. Cyclone dust collecting part 5 is inlet 5a
Is formed at the upper part, and is communicated with the connection pipe 3 forming an intake path by the intake guide 20. Further, the cyclone dust collecting portion 5 is formed in a substantially cylindrical shape, and is arranged substantially in parallel with the connection pipe 3.
The intake air flows from the inflow port 5a at a substantially right angle to the exhaust air flow from the cyclone dust collecting section 5.

The connecting pipe 10b communicating with the connecting member 10 (see FIG. 10) is provided upright on the intake guide 20 from substantially the center of the upper surface of the cyclone dust collecting section 5. 20a is the connecting pipe 1
This is a cylindrical holding portion provided on the intake guide 20 so as to communicate with Ob. An exhaust tube 15 described later is detachably screwed to the holding portion 20a.

The cyclone dust collecting part 5 is connected to the connecting pipe 3.
Is arranged on the opposite side of the floor F (see FIG. 10) with respect to the floor F (see FIG. 10).
And the cyclone dust collecting section 5 can be prevented from colliding with the floor and being damaged when the connecting pipe 3 is dropped.

The exhaust pipe 15 is provided with a holding portion 2 for the intake guide 20.
0a via a seal member 6. Therefore,
The cyclone-type dust collecting section 5 is connected to the connecting pipe 1 in a state where the inside and outside ventilation at the connecting portion of the exhaust pipe 15 is sealed by the seal member 6.
0b. On the side surface of the exhaust pipe 15, an exhaust port 5 b in which a mesh is attached to a plurality of window-like openings is formed.

The first and second dust collection chambers 7 and 8 are detachable from each other, and are pressed against the intake guide 20 by a lock mechanism 30 provided between the first and second dust collection chambers.
The first and second dust collecting chambers 7 and 8 are detachably fixed to the intake guide 20. Since the details of the lock mechanism 30 have little relation to the essence of the present invention, the description thereof is omitted here.

A vertically extending operation chamber 50 is formed integrally with the first dust collection chamber 7 at a position facing the connection pipe 3 on the outer peripheral portion of the first dust collection chamber 7. A slit 50a is provided at the front of the operation chamber 50 so that the operation part 51 protruding from the upper side can slide between the upper end and the lower end of the operation chamber 50.

An operation rod 52 is inserted into the operation chamber 50 so as to protrude toward the second dust collection chamber 8. One end of the operation rod is fixed to the operation section 51, and the other end is a disk-shaped partition 9. Is attached. The outer diameter of the partition wall 9 is selected to be smaller than the inner diameter of the second dust collecting chamber 8 so that a gap is formed between the partition 9 and the inner wall of the second dust collecting chamber 8. The inside of the operation chamber 50 is sealed from the inside of the dust collection chambers 7 and 8 by a seal member 53.

A spring 54 into which the operating rod 52 is inserted
Thereby, the operation unit 51 is urged upward in the operation room 50. Accordingly, when the operation portion 51 is pinched with a finger and pulled down (in the direction of A) along the slit 50a against the urging of the spring 54, the partition wall 9 moves downward (in the direction of B) in conjunction with the pulling.
When the hand is released from the operation unit 51, the spring 54 returns to the upper end of the slit 50a by the restoring force, and the partition 9 also returns to the initial position.

By driving the electric blower 1a (FIG. 9), the intake air flows together with the dust from the inlet 5a to the cyclone dust absorbing portion 5a.
And separates dust while turning inside the first dust collection chamber 7. Part of the separated dust passes around the partition 9 and accumulates in the second dust collection chamber 8. The intake air separated from the dust passes through the exhaust port 5 b, passes through the exhaust pipe 15, and connects to the connecting pipe 10.
b is led to the outside of the cyclone dust collecting section 5 and exhausted from the main body 1.

When dust accumulates at a high position in the second dust collecting chamber 8, the operating portion 51 is pinched, pushed down from the upper end of the slit 50a of the operating chamber 50 to the lower end, and then released to return to the upper end. Thus, the volume of the dust can be reduced by compressing the dust to a lower position at the partition wall 9. If dust is insufficiently compressed by one operation, this operation may be repeated several times as necessary.

As a result, the empty volume in the second dust collection chamber 8 is increased, and dust can be further accumulated without discarding the dust. Therefore, the number of times the dust in the second dust collection chamber 8 is discarded can be reduced, and the size of the second dust collection chamber 8 itself can be reduced. The dust collected in the first and second dust collecting chambers 7 and 8 pushes down the dust collecting chambers 7 and 8 integrally to release the lock mechanism 30 and separates them after removing them integrally. Discarded at

<Second Embodiment> A second embodiment of the present invention will be described with reference to the drawings. FIG. 2 is a side sectional view of a cyclone dust collecting portion of the vacuum cleaner according to the present embodiment. This embodiment is characterized in that the cyclone dust collecting portion has a structural feature, and the other configuration is the same as the conventional vacuum cleaner shown in FIG. 9. And a detailed description thereof will be omitted.

In FIG. 2, reference numeral 55 denotes a working chamber which is arranged above the intake guide 20 and communicates with the intake passage through the cyclone dust suction part 5. On the upper surface of the working chamber 55, a cylindrical connecting pipe 10b is provided coaxially. And the connecting pipe 10
As shown in FIG. 3, a portion b of the stopper b having an opening 10 d that is cut out in an arch shape at a plurality of positions (three positions in FIG. 3) on the side surface of the cylinder as shown in FIG. 3.
c.

Inside the working chamber 55, a float 56 is provided coaxially with the connecting pipe 10b and the holding portion 20a so as to have a gap with the inner wall of the working chamber 55.
6 is urged by the spring 57 toward the holding portion 20a.
One end of the spring 57 is fixed to a rib 55 a on the back side of the upper surface of the working chamber 55, and the other end is connected to the upper surface of the float 56.

As shown in FIG. 4, protrusions 56a are provided at a plurality of positions (three positions in FIG. 4) on the outer peripheral portion of the float 56 so that the float 56 slides along the inner wall of the working chamber 55. Plays a stabilizing role. 58 is a connecting rod having one end fixed to the center of the axis of the float 56,
After passing through the exhaust pipe 15, the partition wall 9 is screwed to the other end.
Installed with. Reference numeral 59 denotes a sealing member made of rubber or the like disposed at the lower end of the exhaust pipe 15 and seals the inflow of intake air into the sliding portion of the connecting rod 58 inserted into the exhaust pipe 15.

As shown in FIG. 2A, the float 56 is pressed against the holding portion 20a of the intake duct 20 by the bias of the spring 57. When the electric blower 1a is driven in this state, the pressure inside the working chamber 55 becomes negative due to the generated intake air,
The float 56 is sucked toward the connecting pipe 10b as shown in FIG. 2B against the bias of the spring 57, and rises until it comes into contact with the stopper 10c. Thereby, the electric blower 1a, the suction hose 2, the working chamber 55, the cyclone dust absorbing part 5,
The intake path communicates in the order of the connection pipe 3 and the suction port body 4.

The intake air flows together with the dust from the connecting pipe 3 through the inlet 5a into the cyclone dust collecting part 5, where
The dust is separated while turning inside the dust collection chamber 7. Part of the separated dust passes around the partition 9 and accumulates in the second dust collection chamber 8. The intake air separated from the dust passes through the exhaust port 15b of the exhaust pipe 15, passes through the exhaust pipe 15, passes through the gap around the float 56, and reaches the electric blower 1a through the opening 10d and is exhausted.

When the driving of the electric blower 1a is stopped, the negative pressure in the working chamber 55 is eliminated, and the float 56 and the partition 9 are lowered by the urging force of the spring 57, and the state shown in FIG. Return to At this time, the dust accumulated in the second dust collection chamber 8 is compressed to the bottom side by the lowering of the partition wall 9 to reduce the volume. When the next electric blower 1a is driven, the partition 9 rises again and dust is absorbed, and a part of the dust is accumulated in the second dust collection chamber 8.

As described above, every time the electric blower 1a is driven / stopped, the dust in the second dust collection chamber 8 is compressed.
The empty volume in the dust collection chamber 8 increases, and dust can be further accumulated without discarding the dust. Therefore, the second dust collection chamber 8
And reduce the number of times the dust in
The second dust collection chamber 8 itself can be reduced in size. The dust collected in the first and second dust collecting chambers 7 and 8 pushes down the dust collecting chambers 7 and 8 integrally to release the lock mechanism 30 and separates them after removing them integrally. Discarded at

<Third Embodiment> A third embodiment of the present invention will be described with reference to the drawings. FIG. 5 is a side sectional view of a cyclone dust collecting part of the vacuum cleaner according to the present embodiment. 5, the same members as those of the electric vacuum cleaner according to the second embodiment shown in FIG. 2 are denoted by the same reference numerals, and detailed description thereof will be omitted.

In FIG. 5, reference numeral 23 denotes a connecting arm fixed to the float 56. At the lower end of the connecting arm 23,
A ring-shaped cleaning tool 21 having a brush 22 for cleaning the exhaust port 5b on the side surface of the exhaust pipe 15 is provided inside. Outside the root of the holding portion 20a protruding from the upper surface of the intake guide 20, there are provided a plurality of guide holes 20b for guiding the connecting arm 23 up and down along the circumference. These guide holes 20b are partially closed outside by a ring-shaped seal member 59 made of rubber or the like.

FIG. 6 is a perspective view showing the relationship among the float 56, the connecting arm 23 and the cleaning tool 21. The upper surface of the float 56 is provided with a groove 56b extending in the circumferential direction at a central angle of about 120 ° from the center of the axis. On the other hand, connecting arm 2
The upper end of 3 is a branch 23a extending sideways from the center of the axis at a central angle of about 120 °. The connecting arm 23 is fixed to the float 56 by engaging the branch portion 23a with the groove 56b of the float 56.
Thereby, the float 56 and the cleaning tool 21 can be integrally moved. Reference numeral 23b denotes a flange formed integrally with the lower end of the connection arm 23 and having a larger outer diameter than the connection arm 23.

As shown in FIG. 5A, the float 56 is pressed against the holding portion 20a of the intake duct 20 by the urging of the spring 57. When the electric blower 1a is driven in this state, the pressure inside the working chamber 55 becomes negative due to the generated intake air,
The float 56 is sucked toward the connecting tube 10b as shown in FIG. 5B against the bias of the spring 57, and rises until it comes into contact with the stopper 10c. Thereby, the electric blower 1a, the suction hose 2, the working chamber 55, the cyclone dust absorbing part 5,
The intake path communicates in the order of the connection pipe 3 and the suction port body 4.

At this time, the cleaning tool 21 and the partition 9 rise in conjunction with the float 56. As a result, the brush 22 provided on the cleaning tool 21 is connected to the exhaust port 5 b on the side of the exhaust pipe 15.
The surface of the second dust collecting chamber 8 is rubbed to remove the attached dust, and at the same time, the partition 9 rises to increase the volume in the second dust collecting chamber 8.

When the cleaning tool 21 rises together with the float 56, the flange 23b of the connecting arm 23 is pressed against the seal member 59, so that the inflow of the intake air from the guide hole 20b of the intake guide 20 into the working chamber 55 is prevented. You. Therefore, the intake air flow passes through the exhaust port 15 without leaking to other parts,
It is efficiently sucked by the electric blower 1a.

The intake air flows together with the dust from the connection pipe 3 through the inlet 5a into the cyclone dust collector 5, where
The dust is separated while turning inside the dust collection chamber 7. Part of the separated dust passes around the partition 9 and accumulates in the second dust collection chamber 8. The intake air separated from the dust passes through the exhaust port 15b of the exhaust pipe 15, passes through the exhaust pipe 15, passes through the gap around the float 56, and reaches the electric blower 1a through the opening 10d and is exhausted.

When the driving of the electric blower 1a is stopped, the negative pressure in the working chamber 55 is eliminated and the float 56
It is lowered by the urging force of the spring 57 together with the partition 9 and the cleaning tool 21, and returns to the state as shown in FIG. This allows
The brush 22 provided on the cleaning tool 21 rubs the surface of the exhaust port 5b on the side surface of the exhaust pipe 15 to remove the attached dust, and the dust accumulated in the second dust collecting chamber 8 is separated from the partition wall. 9 lowers the volume by compressing it to the bottom. When the next electric blower 1a is driven, the partition 9 rises again and dust is absorbed, and a part of the dust is accumulated in the second dust collection chamber 8.

As described above, every time the electric blower 1a is driven / stopped, the dust in the second dust collection chamber 8 is compressed.
The empty volume in the dust collection chamber 8 increases, and dust can be further accumulated without discarding the dust. Therefore, the second dust collection chamber 8
And reduce the number of times the dust in
The second dust collection chamber 8 itself can be reduced in size.

Further, since the cleaning of the exhaust port 5b on the side surface of the exhaust port 15 can be performed without maintenance, it is not necessary to perform manual cleaning that is troublesome and unsanitary.
The dust collected in the first and second dust collecting chambers 7 and 8 pushes down the dust collecting chambers 7 and 8 as a unit, and the locking mechanism 30 is pressed.
Is released and removed as a unit, then discarded by separating them.

<Fourth Embodiment> A fourth embodiment of the present invention will be described with reference to the drawings. FIG. 7 is a side sectional view of a cyclone dust collecting part of the vacuum cleaner according to the present embodiment. This embodiment is a modification of the third embodiment,
The same members as those of the vacuum cleaner according to the third embodiment shown in FIG. 5 are denoted by the same reference numerals, and detailed description thereof will be omitted.

FIG. 7 shows the float 56, the connecting arm 23,
An example of a method of connecting the cleaning tool 21 and the partition 9 is shown in cross section. The point that the cleaning tool 21 is connected via the connecting arm 23 so as to interlock with the up and down movement of the float 56 arranged in the working chamber 55 is the same as in the third embodiment.

A configuration characteristic of the present embodiment will be described. Reference numeral 581 denotes a first connecting rod having an upper end fixed to the back side of the upper surface of the float 56 and hanging down along the center of the axis. The lower end of the first connecting rod 581 is a disc-shaped flange 581a, and the first connecting rod 581 is inserted through the second connecting rod 582. Reference numeral 60 denotes a spring supported by a spring receiving portion 581b disposed at an appropriate position of the first connecting rod 581, and urges the second connecting rod 582 downward with a smaller force than the spring 57. The partition 9 is attached to the lower end of the second connecting rod 582 with a screw 61.

Inside the second connecting rod 582, a cylindrical first space 582a and a second space 582b having different inner diameters are formed coaxially with a stepped portion 582c.
The inner diameter of 82b is selected to be substantially equal to the outer diameter of the flange 581a of the first connecting rod 581 inserted from the upper end of the first space 582a. Therefore, when the second connecting rod 582 is completely pushed down by the spring 60 as shown in the figure, the flange 581a of the first connecting rod 581 is connected to the step 582.
c, the second connecting rod 582 is locked at a predetermined position.

When the electric blower 1a is driven in such a configuration, the float 56 is sucked toward the connecting pipe 10b and rises until it comes into contact with the stopper 10c. This allows
The intake path communicates in the order of the electric blower 1 a, the suction hose 2, the working chamber 55, the cyclone dust suction part 5, the connection pipe 3, and the suction port 4.

At this time, the cleaning tool 21 and the partition 9 rise in conjunction with the float 56. As a result, the brush 22 provided on the cleaning tool 21 is connected to the exhaust port 5 b on the side of the exhaust pipe 15.
And the attached dust is removed, and at the same time, the partition 9 rises and the volume in the second dust collection chamber 8 is enlarged.

When the cleaning tool 21 rises together with the float 56, the flange 23 b of the connecting arm 23 is pressed against the seal member 59, so that the inflow of intake air from the guide hole 20 b of the intake guide 20 into the working chamber 55 is prevented. You. Therefore, the intake air flow passes through the exhaust port 15 without leaking to other parts,
It is efficiently sucked by the electric blower 1a.

The intake air flows together with the dust from the connection pipe 3 through the inlet 5a into the cyclone dust collector 5, where
The dust is separated while turning inside the dust collection chamber 7. Part of the separated dust passes around the partition 9 and accumulates in the second dust collection chamber 8. The intake air separated from the dust passes through the exhaust port 15b of the exhaust pipe 15, passes through the exhaust pipe 15, passes through the gap around the float 56, and reaches the electric blower 1a through the opening 10d and is exhausted.

When the driving of the electric blower 1a is stopped, the negative pressure in the working chamber 55 is eliminated and the float 56
With the partition wall 9 and the cleaning tool 21, it is lowered by the urging force of the strong spring 57 until it comes into contact with the holding portion 20a of the intake duct 20. At this time, if a large amount of dust is accumulated in the second dust collection chamber 8, the lowering of the partition 9 stops halfway because the bias of the spring 60 is weak.

According to this, even when the lowering of the partition 9 is restricted by the dust accumulated in the second dust collecting chamber 8, the cleaning tool 21 can be surely lowered to the lower end of the exhaust tube 15. The dust attached to the surface of the exhaust port 5b on the side surface of the exhaust pipe 15 can be removed by the brush 22 provided on the exhaust pipe 15.

<Fifth Embodiment> A fifth embodiment of the present invention will be described with reference to the drawings. FIG. 8 is a side sectional view of a cyclone dust collecting part of the vacuum cleaner according to the present embodiment. 8, the same members as those of the electric vacuum cleaner according to the second embodiment shown in FIG. 2 are denoted by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIG. 8, a characteristic feature of the present embodiment is that a partition 9 for separating the first dust collecting chamber 7 and the second dust collecting chamber 8 from each other.
Is fixed to the first dust collection chamber 7, and the float 56 is provided with the cleaning tool 21.
Only the connecting arm 23 is connected.

As shown in FIG. 8A, the float 56 is pressed against the holding portion 20a of the intake duct 20 by the urging of the spring 57, and the intake passage upstream of the holding portion 20a is shut off. When the electric blower 1a is driven in this state, the inside of the closed working chamber 55 becomes negative pressure due to the generated intake air, and the float 56 resists the urging of the spring 57 as shown in FIG.
As shown in (b), it is sucked toward the connecting pipe 10b and rises until it comes into contact with the stopper 10c. Thereby, the intake path communicates in the order of the electric blower 1a, the suction hose 2, the working chamber 55, the cyclone dust suction part 5, the connection pipe 3, and the suction port body 4.

At this time, the cleaning tool 21 moves up in conjunction with the float 56. As a result, the brush 22 provided with the cleaning tool 21 rubs the surface of the exhaust port 5b on the side surface of the exhaust tube 15, and the attached dust is removed.

When the cleaning tool 21 rises together with the float 56, the flange 23 b of the connecting arm 23 is pressed against the seal member 59, so that the inflow of intake air from the guide hole 20 b of the intake guide 20 into the working chamber 55 is prevented. You. Therefore, the intake air flow passes through the exhaust port 15 without leaking to other parts,
It is efficiently sucked by the electric blower 1a.

The intake air flows together with the dust from the connecting pipe 3 through the inflow port 5a into the cyclone dust collecting section 5, where
The dust is separated while turning inside the dust collection chamber 7. Part of the separated dust passes through the opening 9 a of the partition 9 and accumulates in the second dust collection chamber 8. The intake air separated from the dust is
5 through the gap around the float 56 through the exhaust pipe 15 through the exhaust port 5b, and the electric blower 1a through the opening 10d.
It is exhausted up to.

When the drive of the electric blower 1a is stopped, the negative pressure in the working chamber 55 is eliminated and the float 56
It is lowered by the urging force of the spring 57 together with the partition 9 and the cleaning tool 21, and returns to the state as shown in FIG. This allows
The brush 22 provided on the cleaning tool 21 rubs the surface of the exhaust port 5b on the side surface of the exhaust tube 15, and the attached dust is removed.

Therefore, since the cleaning of the exhaust port 5b on the side surface of the exhaust port 15 can be performed without maintenance, it is not necessary to perform manual cleaning which is troublesome and unsanitary. The dust collected in the first and second dust collecting chambers 7 and 8 pushes down the dust collecting chambers 7 and 8 integrally to release the lock mechanism 30 and separates them after removing them integrally. Discarded at

The float 56 described in the above embodiment,
The members interlocked with the float 56, such as the cleaning tool 21, the partition 9 and the connecting rods 58, 581, 582, may be formed of a material having a large specific gravity, such as a metal or a composite resin. In this case, when the electric blower 1a is stopped, since the float 56 returns by its own weight, the springs 57 and 60 become unnecessary, so that the configuration can be simplified and the cost can be reduced.

<Sixth Embodiment> A sixth embodiment of the present invention will be described with reference to the drawings. FIG. 9 is a side sectional view of a cyclone dust collecting portion of the vacuum cleaner according to the present embodiment. This embodiment is a modification of the third embodiment,
The same members as those of the vacuum cleaner according to the third embodiment shown in FIG. 5 are denoted by the same reference numerals, and detailed description thereof will be omitted.

In the working chamber 55 described above, for example, in the embodiment of FIG. 2, when the output of the electric blower 1a or the resistance of the intake passage increases and the airflow in the intake passage decreases, the float 56 rises to a position where it comes into contact with the stopper 10c. Without moving, repeat up and down movement in an unstable state. Therefore, by adopting the configuration shown in FIG. 9, the float 56 can stably and surely be raised by a predetermined distance, and the cleaning tool 21 or the partition 9 can be moved by a predetermined distance.

In FIG. 9, the float 5 is placed in the working chamber 55.
6 having an inner diameter substantially corresponding to the outer diameter of the float guide 55
1 is provided. In the float 551, the float 56 is urged downward by a spring 57. An exhaust port 551b, which opens when the suction port 551a and the float 56 rise to a predetermined position, opens upward and communicates with the working chamber 55.

The electric blower 1 with the above configuration (the state of FIG. 9A)
When a is driven, a float guide 551b communicating with the inside of the working chamber 55 and the suction port 551a is opened, and the suction flow sucked from the suction port body 4 becomes negative pressure in the exhaust port 551.
The float 56 rises. When the float 56 rises and the exhaust port 551b is opened, the intake air sucked from the suction port body 4 flows from the exhaust port 551b to the working chamber 55 and the connecting pipe 10b.
After that, the air is blown and exhausted by the electric blower 1a. The float 56 surely rises to a position where the exhaust port 551b opens. Therefore, if this distance is set to the required movement distance of the cleaning tool 21 and the partition 9, the cleaning and compression functions can be reliably performed.

Further, by providing the wall 9b which is directed downward in the outer peripheral direction of the partition 9, the dust accumulated below the partition 9 can be prevented from flying up above the partition 9. Further, the cyclone dust collecting section 5 has been described as having the first and second separable dust collecting chambers 7 and 8, but these may be configured as a single body and integrated.

[0079]

As described above, according to the present invention, the dust accumulated in the cyclo-type dust collecting part can be compressed and reduced in volume by moving the compression means up and down by driving and stopping the electric blower. Thereby, the empty volume in the cyclone type dust collecting part increases, and dust can be further accumulated without discarding the dust. Therefore, the number of times the dust in the cyclone type dust collecting unit is discarded can be reduced, and the size of the cyclone type dust collecting unit itself can be reduced.

Further, according to the present invention, the exhaust port of the exhaust pipe, in which the intake air flowing into the cyclone type dust collecting section together with the dust by driving the electric blower is exhausted to the intake path outside the cyclone type dust collecting section, is cleaned by the cleaning means. Maintenance-free cleaning eliminates the need for laborious and unsanitary manual cleaning.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a cyclone dust collecting unit of a vacuum cleaner according to a first embodiment of the present invention.

FIG. 2 is a side cross-sectional view of a cyclone dust collecting unit of a vacuum cleaner according to a second embodiment of the present invention.

FIG. 3 is a perspective view of a main part of the cyclone dust collecting unit.

FIG. 4 is a perspective view of a compression unit of the cyclone dust collecting unit.

FIG. 5 is a side sectional view of a cyclone dust collecting part of a vacuum cleaner according to a third embodiment of the present invention.

FIG. 6 is a perspective view of a cleaning unit of the cyclone dust collecting unit.

FIG. 7 is a side sectional view of a cyclone dust collecting part of a vacuum cleaner according to a fourth embodiment of the present invention.

FIG. 8 is a side sectional view of a cyclone dust collecting part of a vacuum cleaner according to a fifth embodiment of the present invention.

FIG. 9 is a side sectional view of a cyclone dust collecting part of a vacuum cleaner according to a sixth embodiment of the present invention.

FIG. 10 is a schematic side view of a conventional vacuum cleaner.

FIG. 11 is a side sectional view of a cyclone dust collecting portion of the vacuum cleaner.

FIG. 12 is a top sectional view of the cyclone dust collecting unit.

FIG. 13 is a perspective view of a partition partitioning the inside of the cyclone dust collecting unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 1a Electric blower 2 Suction hose 3 Connection pipe 4 Suction opening body 5 Cyclone dust collecting part 6 Packing 7 First dust collecting chamber 8 Second dust collecting chamber 9 Partition 10 Connecting member 10b Connecting pipe 10c Stopper 10d Opening DESCRIPTION OF SYMBOLS 20 Intake guide 20a Holding part 21 Cleaning tool 22 Brush 23 Connecting arm 30 Lock mechanism 50 Operating room 51 Operating part 52 Operating rod 53, 59 Seal member 54, 57, 60 Spring 55 Working chamber 551 Float guide 56 Float 57 Spring 58 Connecting rod 59 sealing member 61 screw 581 first connecting rod 582 second connecting rod

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Komitsu Matsumoto 22-22 Nagaike-cho, Abeno-ku, Osaka-shi, Osaka F-term (reference) 3B062 AH02 AH05

Claims (9)

[Claims] 1. A suction port body having an intake port, an electric blower for generating intake air, an intake path provided between the suction port body and the electric blower, and intake air flowing in the intake path. A cyclone-type dust collecting unit for separating dust by rotating the vacuum cleaner, wherein a compression means for compressing the dust accumulated in the cyclone-type dust collecting unit is provided. . 2. An intake port body having an intake port, an electric blower for generating intake air, an intake path provided between the intake port body and the electric blower, and intake air flowing in the intake path. And a cyclone-type dust collecting part for separating dust by turning the gas turbine. An exhaust pipe communicating with the inside and outside of the cyclone-type dust collecting part and having an exhaust port formed therein; and And a compressing means for compressing the dust accumulated in the vacuum cleaner. 3. The apparatus according to claim 1, wherein the compression unit includes a compression member disposed in the cyclone type dust collection unit and an operation unit interlocked with the compression member disposed outside the cyclone dust collection unit. 3. The vacuum cleaner according to 2. 4. A working chamber provided above the cyclone-type dust collecting part and communicating with the intake path via the cyclone-type dust collecting part, and the compression means is urged downward from the working chamber. The vacuum cleaner according to claim 1 or 2, comprising a float, a connecting rod having one end fixed to the float, and a compression member attached to the other end of the connecting rod. 5. The vacuum cleaner according to claim 4, wherein the connecting rod is inserted through the exhaust pipe. 6. The vacuum cleaner according to claim 4, further comprising cleaning means for cleaning the exhaust port of the exhaust pipe that moves in conjunction with the compression means. 7. The vacuum cleaner according to claim 6, wherein the cleaning unit is connected to the float. 8. An intake port having an intake port, an electric blower for generating intake air, an intake path provided between the intake port body and the electric blower, and intake air flowing in the intake path. A cyclone-type dust collecting unit for separating dust by turning the exhaust pipe, wherein an exhaust port communicating with the inside and outside of the cyclone-type dust collecting unit and having an exhaust port formed therein; and A vacuum cleaner provided with cleaning means for cleaning a mouth. 9. A working chamber provided above the cyclone type dust collecting part and communicating with the intake path via the cyclone type dust collecting part, and is biased below the working chamber. A float, a connecting arm extending vertically into the cyclone dust collecting portion so as to keep a predetermined distance from the float to the exhaust port of the exhaust stack, and a connecting arm extending toward the exhaust port of the exhaust stack. The vacuum cleaner according to claim 8, comprising an attached brush.