JP2003204907A - Stick type vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stick type vacuum cleaner capable of lowering its center of gravity as much as possible while preventing performance deterioration by making an airflow path as short as possible. <P>SOLUTION: The vacuum cleaner comprises a cleaner body 2 equipped with a nozzle 3 thereunder, a cyclone 16, an electric blower 18 and a cord reel 26 for feeding electrical power to the electric blower 18. The cyclone 16 is arranged above the nozzle 3 and under the cleaner body 2. The electric blower 18 is arranged above the outer cyclone cylinder 20 and the cord reel 26 is arranged in the enlarged diameter portion 30 under an air exhaust path 25 in the cleaner body 2. As a result, the airflow path between the nozzle 3 and the electric blower 18 can be made short, thereby preventing pressure loss from increasing, and the center of gravity of the entire stick type vacuum cleaner 1 is located low. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stick type vacuum cleaner, and more particularly, to a stick type vacuum cleaner which can be stood upright when not in use.

[0002]

Conventionally, as a stick type vacuum cleaner of this type, for example, JP-A-8-173363 is used.
Those described in Japanese Patent Laid-Open Publication No. 2003-242242 are known. This is provided with a floor brush (suction port) below the cleaner body,
A dust collecting chamber (dust collecting mechanism) is provided in the lower part of the cleaner body, and an electric blower and a cord reel are provided in the upper part of the cleaner body. When this stick type vacuum cleaner is used, the cord is pulled out from the cord reel and connected to a household AC power supply, and the electric blower is driven to suck dust along with the airflow from the floor brush, and collect this dust in the dust collection chamber. The floor etc. can be cleaned by capturing with. In addition, this stick type vacuum cleaner is stored by winding a cord around a cord reel when not in use and leaving the floor cleaner to stand on its own.

However, in these stick-type vacuum cleaners, the electric blower and the cord reel, which are heavy objects, are provided in the cleaner body toward the upper side, so that the center of gravity becomes high and unstable, and the stick-type cleaners fall down during storage. There was a fear that it would be easier. In addition, the high center of gravity of the stick type vacuum cleaner means that the center of gravity of the user is close to the user's hand, and the user may feel that it is difficult to operate the cleaner heavily.

Therefore, it is conceivable to adopt the structure described in Japanese Patent Laid-Open No. 6-209881.
This is provided with a floor nozzle (suction port) below the main body (cleaner main body), a dust collection chamber (dust collection mechanism) above the center of the main body, and an electric blower below the main body. A cord winding device (cord reel) is provided above the main body. However, in these stick type vacuum cleaners, the air flow containing dust sucked from the floor nozzles flows through the dust collection chamber in the upper part of the main body to the electric blower in the lower part of the main body, and the path of the air flow is reduced. There is a problem that the pressure loss increases as the length increases. In particular, in the case of a cyclone type vacuum cleaner that separates airflow and dust inside the cyclone cylinder, it is necessary in principle to introduce the airflow into the cyclone cylinder from above and also to discharge the airflow from above to outside the cyclone cylinder. Therefore, there has been a problem that the path of the air flow is significantly lengthened and the pressure loss becomes larger.

It is an object of the present invention to solve the above problems and to provide a stick type vacuum cleaner which can shorten the center of gravity as much as possible while preventing the deterioration of performance by shortening the path of air flow as much as possible. And

[0006]

A stick type cleaner of the present invention is a cleaner body having a suction port provided below, a dust collecting mechanism provided in the cleaner body, an electric blower, and the electric blower. It consists of a cord reel for powering
The dust collecting mechanism is provided above the suction port and below the cleaner body, the electric blower is provided above the dust collecting mechanism, and the cord reel is provided below the cleaner body. is there.

With the above-described structure of the present invention, the airflow sucked from the suction port below the cleaner body passes through the dust collecting mechanism above the suction port and further above the dust collecting mechanism. The air blower path from the suction port to the electric blower is shortened by connecting the electric blower to the electric blower, and the cord reel, which is a heavy load, is arranged below the cleaner body, so that the stick type The center of gravity of the entire vacuum cleaner is low.

Also, in the stick type cleaner of the present invention, an exhaust passage extending from the electric blower to an exhaust port opened below the cleaner body is formed in the cleaner body, and the cord is provided in the exhaust passage. It is a reel arrangement.

With the above-described structure of the present invention, the air flow discharged from the electric blower cools the cord reel through the exhaust passage and is then discharged to the outside from the exhaust port below the cleaner body.

Further, the stick type vacuum cleaner of the present invention is such that the widened portion is formed in the exhaust passage and the cord reel is housed in the widened portion.

With the above-described structure of the present invention, the airflow flowing through the exhaust passage spreads in the widened portion accommodating the cord reel, so that the flow velocity of the airflow is reduced.

Further, in the stick type vacuum cleaner of the present invention, the exhaust port is provided downward in the widened portion.

With the above-described structure of the present invention, the airflow is exhausted downward from the exhaust port.

[0014]

Embodiments of the present invention will be described below.
A description will be given based on FIGS. 1 and 2. 1 is a stick type vacuum cleaner of the present invention, which is a vertically long cleaner main body 2
And a nozzle 3 as a suction port attached to the lower part of the cleaner body 2 and a handle 4 attached to the upper part of the cleaner body 2. The nozzle 3 is detachably attached to a first connecting portion 5 formed below the cleaner body 2. And the cleaner body 2
An engaging portion 6 for fixing a cyclone 16, which will be described later, is provided in the lower part of the. Further, the handle 4 is rotatably supported by a rotating portion 7 formed above the cleaner body 2, and the handle 4 is held in a raised state at the base end side of the handle 4. There is provided a hook 8 for doing this, and the hook 8 is configured to engage with the engaging portion 9 formed on the upper portion of the cleaner body 2. An operation switch 10 is provided near the grip 4a of the handle 4, and the operation switch 10 is provided.
Electric power is supplied to or cut off from an electric blower 18 described later by operating 10.

A second connecting portion 11 is formed on the lower side surface of the cleaner body 2 so as to communicate with the first connecting portion 5. A connection port 13 provided on the distal end side of a flexible suction hose 12 is detachably attached to the second connection portion 11.
Further, the base end side of the suction hose 12 is fixed to a third connecting portion 14 formed on the side surface of the central portion of the cleaner body 2. Further, the third connecting portion 14 is a cyclone 16 which is a dust collecting mechanism detachably attached to the cleaner body 2.
It is formed so as to communicate with the eddy current generation means 17. An electric blower 18 is arranged in the cleaner body 2 above the swirl generating means 17 and below the rotating portion 7. The electric blower 18 has its axis 19 arranged in the vertical direction of the cleaner body 2.

The cyclone 16 has a double structure composed of an outer cyclone cylinder 20 which is an outer cylinder and an inner cyclone cylinder 21 which is an inner cylinder with a shaft center 19 as a center, and forms a dust collecting mechanism. The inner cyclone cylinder 21 has a substantially conical shape that tapers toward the tip, and the vortex flow generating means 17 provided at the base end thereof introduces air from the third connecting portion 14 side to generate a vortex flow. An external vortex generator 22 that is guided to the outer cyclone cylinder 20
And the air that has risen from below, that is, from the bottom of the outer cyclone cylinder 20, is introduced to generate a vortex and generate an inner cyclone cylinder
An inner vortex generator 23, which is led out to the inside of 21, is integrally formed. Further, a mesh filter 24 is provided at the center of the base end of the inner cyclone cylinder 21, and the inside of the inner cyclone cylinder 21 and the upstream side 18a of the electric blower 18 communicate with each other through the filter 24.

The exhaust passage 25, one end of which is connected to the downstream side 18b of the electric blower 18 which is disposed laterally, has a cleaner body 2
Is integrally molded with the cleaner body 2 in the vertical direction on the back side of the
The nozzle 3 is attached to the lower end thereof. The exhaust passage 25 has a duct shape, and the width A thereof is formed to be substantially the same width in the vertical direction or a taper shape in which the lower portion has a slightly larger width. The lower portion of the exhaust passage 25, and thus the vacuum cleaner. A cord reel 26 for supplying electric power to the electric blower 18 is housed near the bottom of the main body 2. In the cord reel 26, a reel body 28 is rotatably provided so that an axis line 27 is substantially orthogonal to the axis line 19, and a power cord 29 is wound around the reel body 28 to be housed. For this reason, a cord reel is installed in the exhaust passage 25.
A cord reel larger than the width A at the 26 mounting position
To accommodate 26, a widened portion 30 having a width B larger than the width A is provided via the step portions 30a on both sides. A discharge port 31 of the exhaust passage 25 is formed below the cord reel 26, and is integrally formed with the widened portion 29 so as to open obliquely downward below the cleaner body 2. An outlet 32 for the plug 29a of the power cord 29 is formed near the cord reel 26 of the cleaner body 2.

Next, the operation of the above structure will be described. Set the outer cyclone cylinder 20, the inner cyclone cylinder 21, etc. in the cleaner body 2, and then pull out the power cord 29
When the electric blower 18 is driven by operating the operation switch 10 by further pulling it out to connect the plug 29a to an outlet, air containing dust is sucked from the nozzle 3, and the first connecting portion 5 and the second connecting portion are drawn. 11, the suction hose 12, the third connecting portion 14, and the outer vortex generator 22 of the vortex flow generating means 17 to reach the inside of the outer cyclone cylinder 20. At this time, the inflowing air is guided by the outer vortex generator 22 to become a vortex that spirally descends along the inner peripheral surface of the outer cyclone cylinder 20, and the relatively heavy dust contained in this vortex is centrifugally generated by the vortex. Eliminated by force. Then, when the vortex flow reaches the bottom of the outer cyclone cylinder 20, it turns upward and spirally rises along the outer peripheral surface of the inner cyclone cylinder 21. Here, the vortex flow that rises along the outer peripheral surface of the inner cyclone cylinder 21 is guided by the inner vortex generator 23 and becomes a vortex flow that again spirally descends along the inner peripheral surface of the inner cyclone cylinder 21. When it reaches the bottom, the vortex turns upward near the center. At this time, relatively light dust such as cotton dust mixed with the vortex and fine dust are separated from the vortex and collect at the bottom. Further, the vortex flow that has risen in the inner cyclone cylinder 21 has fine dust removed through the mesh filter 24, and the exhaust passage 25 that goes downward from the upstream side 18a and the downstream side 18b of the electric blower 18 located further above. The gas is exhausted from the exhaust port 31 via the. When passing through the exhaust passage 25, the airflow passes through the cord reel 26 provided in the widened portion 30 to cool the code reel 26, the speed of the airflow is reduced, and the discharge port 31 integrated with the widened portion 30 is provided. And exhausted diagonally downward. Further, noise is reduced due to the decrease in airflow velocity.

After the cleaning is completed in this way, the outer cyclone cylinder 20 and the inner cyclone cylinder 21 are removed from the cleaner body 2. And from the outer cyclone cylinder 20 to the inner cyclone cylinder
By removing 21 the dust collected in the outer cyclone cylinder 20 is thrown into the trash box to remove the dust.

As described above, in the above-described embodiment, the cleaner body 2 having the nozzle 3 provided below, and the cleaner body 2
A cyclone 16 forming a dust collecting mechanism, an electric blower 18, and a cord reel 26 for supplying electric power to the electric blower 18, the cyclone 16 being above the nozzle 3 and the cleaner body 2 Is provided below, and the electric blower 18 is provided above the cyclone 16, and
The cord reel 26 is provided near the lower portion of the cleaner body 2, and the airflow sucked from the nozzle 3 below the cleaner body 2 passes through the cyclone 16 above the nozzle 3 and further the cyclone. Electric blower above 16 18
By so doing, it is possible to prevent the air flow path from the nozzle 3 to the electric blower 18 to be formed to be short and prevent the pressure loss from increasing. Further, since the cord reel 26, which is a heavy object, is arranged near the bottom of the cleaner body 2, the center of gravity of the entire stick-type cleaner 1 is at a low position.

Also, the electric blower 18 to the cleaner body 2
An exhaust path 25 reaching an exhaust port 31 that opens below is formed in the cleaner body 2, and the cord reel 26 is arranged in the exhaust path 2 so that the air flow discharged from the electric blower 18 is exhausted by the exhaust path 25. After cooling the cord reel 26 through the passage, the cord reel 26 is discharged to the outside from the exhaust port 31 below the cleaner body 2, and the exhaust gas from the exhaust port 31 is discharged below the cleaner body 2.

Further, by forming the widened portion 30 in the exhaust passage 25 and accommodating the cord reel 26 in the widened portion 30, it is possible to reduce the flow velocity of the air flow and reduce the noise. The cord reel 26 can be easily attached.

In addition, since the exhaust port 31 is provided downward in the widened portion 29, the air can be exhausted downward while keeping the velocity of the air flow at the exhaust port 31 low.

The present invention is not limited to the above embodiment, and various modifications can be made. For example, although the cord reel is provided at the position behind the cyclone in the above embodiment, it may be provided at the position below the cyclone. Although the double cyclone is used as the dust collector mechanism, a single cyclone may be used or a dust collecting mechanism other than the cyclone may be used.

[0025]

The stick type vacuum cleaner of the present invention has a vacuum cleaner main body having a suction port provided below, a dust collecting mechanism provided in the vacuum cleaner main body, an electric blower, and a power supply to the electric blower. Cord reel, the dust collecting mechanism is provided above the suction port and below the cleaner body, the electric blower is provided above the dust collecting mechanism, and the code reel is below the cleaner body. The air flow sucked from the suction port below the main body of the vacuum cleaner passes through the dust collecting mechanism above this suction port and reaches the electric blower above this dust collecting mechanism. By doing so, the path of the air flow from the suction port to the electric blower is formed to be short, it is possible to prevent the deterioration of dust collection performance, and a cord reel, which is a heavy object, is placed near the bottom of the cleaner body. In the center of gravity of the entire stick cleaner becomes lower position, it is possible to keep to self be stable on storage, it can be operated with light operational feeling by the user during use.

Further, in the stick type cleaner of the present invention, an exhaust passage from the electric blower to an exhaust port opened below the cleaner body is formed in the cleaner body according to claim 1, and the exhaust passage is formed. Since the cord reel is arranged inside, the airflow discharged from the electric blower cools the cord reel through the exhaust passage, and is then discharged to the outside from the exhaust port below the cleaner body. The exhaust gas can be discharged below the cleaner body so that the exhaust gas is not directly sucked.

Further, in the stick type vacuum cleaner of the present invention, the widened portion is formed in the exhaust passage, and the cord reel is housed in the widened portion, and the stick type cleaner flows through the exhaust passage. Since the airflow spreads in the widened portion accommodating the cord reel, the flow velocity of the airflow is reduced, so that noise can be reduced.

Further, in the stick type vacuum cleaner of the present invention, in the third aspect, the exhaust port is provided in the widened portion so as to face downward, so that the exhaust is discharged downward from the exhaust port and the exhaust is not directly sucked. can do.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a rear view showing an embodiment of the present invention.

[Explanation of symbols]

2 Vacuum cleaner body 3 nozzles (suction port) 16 cyclone (dust collection mechanism) 18 electric blower 25 exhaust path 26 cord reel 30 Widened part 31 Exhaust port

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Claims (4)

[Claims] 1. A cleaner body having a suction port provided below, a dust collecting mechanism provided in the cleaner body, an electric blower, and a cord reel for supplying power to the electric blower. Is provided above the suction port and below the cleaner body, the electric blower is provided above the dust collecting mechanism, and the cord reel is provided near the bottom of the cleaner body. Stick type vacuum cleaner. 2. An exhaust passage extending from the electric blower to an exhaust port opened below the cleaner body is formed in the cleaner body, and the cord reel is arranged in the exhaust passage. The stick type vacuum cleaner according to claim 1. 3. The stick type vacuum cleaner according to claim 2, wherein a widened portion is formed in the exhaust passage, and the cord reel is accommodated in the widened portion. 4. The stick type vacuum cleaner according to claim 3, wherein the exhaust port is provided downward in the widened portion.