JPS63117724A - Electric cleaner - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vacuum cleaner used in general households.

[Prior art and its problems] Conventional vacuum cleaners usually have a horizontally elongated configuration, and the internal motor, suction fan, dust collection chamber, etc. are also arranged horizontally. The filter attached to the filter is also oriented vertically, making it easier for dust to adhere to the filter surface. As a result, the filter becomes clogged quickly, requiring frequent removal and cleaning, as well as problems such as a decrease in dust suction power and increased noise due to the clog. In addition, conventional vacuum cleaners lack stability when moving indoors due to an unbalanced center of gravity, are large in appearance, are inconvenient to store, and have a design that tends to be integrated with other furniture and small items. It is not in a shape that allows it to be used. Note that there are relatively large vacuum cleaners that are circular and vertical, but even in this vertical type, the position of the filter in the dust collection chamber, the dust suction passage, and the negative pressure space are not good, and the vacuum cleaner may deteriorate over time. It has the drawbacks of fast clogging, large size, and instability.

[Object of the present invention] The present invention is proposed in view of these points.

The first objective is to propose a vacuum cleaner with increased dust collection power and whose dust collection power does not deteriorate over time.

The second objective is to propose a vacuum cleaner that is small, stable during movement, and that can be designed to be integrated with other furniture and small items.

[Structure and operation of the present invention] The present invention employs the following structure as a means for achieving the above object.

a. A longitudinally long casing comprising one wheel whose direction is fixed and a wheel whose direction is freely attached to the lower surface; b. A motor housed in a motor chamber with an exhaust port formed at the bottom of the casing; A suction fan driven by this motor, and a dust collector located in the upper part of the motor chamber in the casing, formed with a space between it and the inner wall of the casing, and having a filter attached to the upper part. a chamber, d, formed in a spiral shape around the outer periphery of the dust collection chamber, the lower end of which is connected to the suction hose connection port provided at the lower part of the casing, and the upper end of which is connected to the upper part of the dust collection chamber and is connected to the filter; a dust suction passage communicating with an opening opened on the lower side; A spiral groove is formed on the outer periphery of the dust collection chamber at the same pitch as the dust suction passage, and the lower end is connected to the outside of the air collector, which is below the bottom of the dust collection chamber and is divided into several sections by arcuate ribs. f. A communication pipe that communicates the air intake port provided in the center of the air collector with the suction port of the suction fan; g. A vacuum cleaner consisting of a built-in reel for a power cord that can store power for return rotation, and h.

In the vacuum cleaner, a suction hose is connected to the hose connection port, and when the motor is turned on, the suction fan rotates to make the negative pressure space negative pressure through the exhaust passage. When the negative pressure space becomes negative and positive, the inside of the dust collection chamber becomes negative pressure through the filter, and when the inside of this dust collection room becomes negative pressure, the inside of the suction hose becomes negative pressure through the dust suction passage, and as a result, the suction hose dust and air can be sucked out. The dust and air sucked in by the suction hose enter the dust collection chamber through a spiral dust suction passage, where the dust is removed by a filter, and among the removed dust, those with higher specific gravity fall to the bottom of the dust collection chamber. Light objects stick to the filter. However, when the suction stops, the dust that has adhered to the filter falls into the dust collection chamber due to its gravity, and the only thing that sticks to the filter until the end is the tiny particles that have entered the eyes. However, the dust that gets into these holes will fall into the dust collection chamber by applying appropriate vibrations to the filter. Air enters the negative pressure space through the filter, enters the suction fan through the exhaust passage, cools the motor, and is discharged outside the machine.

[Embodiment and its operation] The figure shows an embodiment of the present invention, in which 1 is a wheel 3 that can be freely oriented in the bottom 2 and a wheel 4 that has a fixed direction in consideration of running stability.
It is a casing (aircraft body) consisting of a handle 5 attached to the upper part.

6 is a motor chamber lined with a sound insulating material c' formed on the inner bottom of the casing 1, and the outer wall 7 of this motor chamber 6 is formed with an exhaust port 8 and a hose connection port 9. be.

10 is a motor installed in the motor chamber 6, and 11 is a suction fan driven by the motor 10.

Reference numeral 12 denotes a dust collection chamber formed in the casing 1 above the motor chamber 6, and a gap 14 is formed between the outer wall 13 of the dust collection chamber 12 and the casing 1.

15 is the peripheral wall 13 of the dust collection chamber 12 within the interval 14.
The lower end of this dust suction passage 15 is connected to the hose connection port 9 via a communication passage 16, and the upper end is connected to the dust collection chamber 12. It communicates with an opening 17 opened around the upper part of the outer wall 13.

A filter 18 is detachably attached to the upper part of the dust collection chamber 12 in which the opening 17 is formed.

Reference numeral 19 denotes a negative pressure space formed above the filter 18, and in this negative pressure space 19, six wooden arcuate ribs 21 are intersected at the center to press the filter 18 from above, as shown in FIG. A distributor 20 formed in this manner is arranged. 20' is a communication window formed by cutting out two of the arcuate ribs 21 on the opening 17 of the dust suction passage 15.

Reference numeral 22 denotes an exhaust passage spirally formed downward from each of the five distribution spaces 23 formed by the distributor 20 and around the outer wall 13 of the dust collection chamber 12. are connected to an air collector 24 which is inserted between the motor chamber 6 and the dust collection chamber 12 and is formed by intersecting six arcuate ribs 25 at the center as shown in FIG. 25' is the dust suction passage 15 of the arcuate rib 25.
This is a communication window formed by cutting out the arcuate ribs 25 (two pieces) corresponding to the area.

Reference numeral 26 denotes an air collecting port 26 formed at the center of the air collector 24, and this air collecting port 26 communicates with the suction port 11' of the suction fan 11.

An exhaust port 11'' of the suction fan 11 is communicated with the inside of the motor 10, and a discharge I-Jσ opened in a part of the motor chamber 6 is communicated with the exhaust port 8 of the casing 1.

28 is a reel chamber 29 formed in the bottom space of the casing 1
A reel is housed inside the reel 28 so as to be rotatable about a vertical shaft 30, and a power cord 31 for the motor 10 is wound around this reel 28. 32 is a thinly wound spring for returning and rotating the reel 28.

In the vacuum cleaner having the above configuration, when the motor 10 is turned on, the rotation of the motor 10 causes the suction fan 11 to
rotates. When the suction fan 11 rotates, the exhaust passage 2
2, negative pressure space 19, dust collection chamber 12, dust suction passage 15, communication passage 16, hose connection n 9, and the inside of the suction hose connected to this hose connection port 9 become negative pressure, and as a result, dust and air are removed from the suction hose. can be aspirated. The dust and air sucked from the suction hose spirally ascend from the communication passage 16 through the dust suction passage 15, and the dust and air enter the dust collection chamber 12.
The dust collection chamber 12 is entered through an opening 17 formed in the outer wall 13 of the dust collection chamber 12. The dust and air that entered the dust collection chamber 12 are filtered through the filter 18.
The negative pressure side is separated by the filter 18, which is equalized by the distributor 20 placed on the upper part of the dust collection chamber 12, and the air enters the exhaust passage 22 from the negative pressure space 19, and the air is collected. The air enters the motor 10 from the container 24 through the suction fan 11, and is discharged to the outside of the casing 1 through the exhaust port 8 while cooling the motor 10.

The reel 28 in the reel chamber 29 formed at the bottom of the casing 1 is configured to store force in a spring 32 when the power cord 31 is pulled out, and to be automatically wound up by the spring 32 when the power cord 31 is released.

[Effects of the present invention] As described above, the present invention arranges a motor and a suction fan at the bottom of a casing, provides a dust collection chamber above this, and collects dust and air sucked from a suction hose through a spiral dust suction passage. The dust is put into the dust collection chamber, where it is filtered by upward negative pressure action (flow) to separate dust and air, and then discharged outside the casing via the exhaust passage.
It has the following effects.

a. Dust and air flow from below to above the filter placed at the top of the dust collection chamber, and dirt adheres to the bottom surface of the filter.

As a result, the dust in the filter falls into the dust collection chamber due to gravity, so the filter does not become clogged and the dust suction power does not decrease, so when using the same motor and suction fan as before, Dust suction power can be increased.

b. When producing a vacuum cleaner with increased dust suction power, it is possible to downsize the motor and suction fan.

Due to the effect of C1 and the formation of a spiral dust suction passage outside the dust collection chamber, there is no need to increase the outer diameter dimension even if the cross-sectional area of the dust suction passage is set large to reduce pressure loss. As a result, the casing, and thus the fuselage, can be made smaller.

d. The body can be formed into a cylindrical shape that is long in the vertical direction, so it occupies a small floor space, saves storage space, and can be integrated with stools, desk lamps, other furniture, and small items, allowing for diversification in design. .

e. Since the heavy parts such as the motor and suction fan are located at the bottom, the center of gravity of the aircraft is low and stability of movement can be achieved.

f. A distributor was installed in the negative pressure space on the top surface of the filter, and the airflow was rectified into a planar shape by the distributor, so the negative pressure surface against the filter was uniformized and concentrated in one part. As a result, the adhesion of dust becomes uniform. This result also shows that the dust suction power does not decrease.

g. Since the dust suction passage is formed in a spiral shape and the distributor and air collector are formed with arcuate ribs, air flow is smooth and pressure loss is small.

h. A plurality of exhaust passages are formed in a spiral shape outside the dust collection chamber, and these are collected in an air collector below the bottom of the dust collection chamber and suctioned by a suction fan, so that the cross-sectional area of the exhaust passage is reduced. By making the exhaust passage large, pressure loss can be reduced, and since the exhaust passage is formed in a spiral shape, the thickness of the exhaust passage can be made smaller than the width. As a result, it is possible to contribute to reducing the outer diameter.

i. Since the reel chamber and the reel with the power cord wrapped around it are built into the reel chamber at the bottom of the motor chamber, the center of gravity is lowered to the bottom, contributing to the stability of the vacuum cleaner.

j. One of the multiple wheels attached to the bottom of the casing is fixed in direction, so the aircraft will not rotate due to the reaction force when driving the motor.

[Brief explanation of the drawing]

FIG. 1 is a front view of a vacuum cleaner according to the present invention, FIG. 2 is a right side view, FIG. 3 is a front view with a part of the casing cut away, and FIG. 4 is a sectional view taken along line A-A. Fig. 5 is a sectional view taken along the line B-B, Fig. 6 is a sectional view taken along the line C-C, Fig. 7 is a sectional view taken along the line D-D'MA, Fig. 8 is a sectional view taken along the line E-E, and Fig. 9 is a sectional view taken along the line F. -F line sectional view, FIG. 10 is a GG line sectional view, and FIG. 11 is a HH line sectional view. 1...Casing 2.Old...Bottom 3...
...Wheel 4...Direction fixed wheel 5...Handle 6.Old...Motor room σ'
...Sound insulation material σ...Discharge lower...
...Outer wall 8...Exhaust port 9.
...Hose connection port 10...Motor 11...
・Suction fan 11'...Intake port 11''...Fan exhaust port 12...Dust collection chamber 13...Outer wall
14... Interval 15... Dust suction passage 16
... Communication path 17 ... Opening part 18 ... Filter 19 ... Negative pressure space 20 ... Distributor 20' ... Communication window 21 ... Arc-shaped rib 22
...Exhaust passage 23...Distribution space 24...
Air collector 25... Arcuate rib 25'... Communication window 26... Air collection port 27... Communication pipe
28...Reel 29...Reel chamber 30
...Vertical shaft 31...Power cord 32...Spring Fig. 2 Fig. 11

Claims (1)

[Scope of Claims] a. A vertically long casing having one wheel with a fixed direction and a wheel with a freely variable direction attached to the lower surface; b. A motor chamber with an exhaust port formed at the bottom of the casing. a motor housed in the casing and a suction fan driven by the motor; a dust collection chamber to which a filter is attached; d) a spiral shape is formed around the outer periphery of the dust collection chamber, the lower end is connected to the suction hose connection port provided at the lower part of the casing, and the upper end is connected to the dust collection chamber; A dust suction passage that is in the upper part and communicates with an opening opened on the lower side of the filter, and (e) the outside of a negative pressure space in which a distributor is installed, which is divided into several parts by arcuate ribs on the upper surface of the filter. The top end opens,
A spiral air collector is formed on the outer periphery of the dust collection chamber at the same pitch as the dust suction passage, and the lower end thereof is below the bottom of the dust collection chamber and communicates with the outside of the air collector, which is divided into several sections by arcuate ribs. f. A communication pipe that communicates the air intake port provided in the center of the air collector with the suction port of the suction fan; g. A spring installed in the reel chamber formed at the lower part of the motor chamber. A vacuum cleaner consisting of a built-in reel for a power cord so that return rotation can be stored, and h.