JP3885454B2 - Electric vacuum cleaner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in the amount of dust collected by a vacuum cleaner and an improvement in the visibility of dust collected.
[0002]
[Prior art]
Conventional vacuum cleaners have been configured such that dust flowing in from a suction port passes through an extension tube / hose and is captured by a dust collection bag contained in a dust collection chamber of the main body. Therefore, when dust with a relatively large volume, such as paper waste, enters the dust collection bag, the dust collection bag is immediately filled, and there is a problem that the dust collection capacity cannot be taken for the amount of dust collection. In addition, the dust bag captures fine dust, so it has a large amount of weight, making it impossible to visually recognize the dust in the dust bag, and the body that makes up the dust chamber is opaque. There was a problem that it was difficult to tell if only dust was collected. In addition, when a foreign object or an unintended object is sucked, there is a problem that it is difficult to recognize and difficult to take out.
[0003]
An object of the present invention is to solve the above-described problems, to effectively use the volume of a dust bag, and to provide an easy-to-use vacuum cleaner.
[0004]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention is arranged in a dust collection bag by arranging a dust collection trap communicating with the dust collection chamber containing the dust collection bag and collecting the dust upstream of the dust collection chamber. The dust collection capacity of the dust collection bag can be effectively utilized by capturing the dust before and discarding it as necessary.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention includes a suction means for sucking dust, a dust collection chamber disposed in front of the suction means and including a dust bag, and a suction air flow arranged upstream of the dust collection chamber. A dust collection trap having a cyclone trap configuration for rotating and separating dust, a communication pipe communicating with the inside of the dust collection trap, and a connecting portion for connecting the dust collection chamber and the communication pipe. An end opening portion of the communication pipe is provided in the vicinity of the dust accumulation portion, and a side wall of the communication pipe is provided with a dust collection passage switching means for opening and closing the communication opening portion and the communication opening portion. When the communication opening is opened, the dust in the dust trap continues to swivel. When the communication opening is closed by the dust collecting flow path switching means, the swirling dust flows into the communication pipe. Configuration to be transferred into the dust bag in the dust chamber through the connecting part By the, dust in the dust collecting trap cyclone trap arrangement before entering the dust bag, pivots the sucked air becomes it is possible to capture and separate the dust, the dust collecting capacity of the dust bag In addition to being able to be used effectively, it is possible to reduce a decrease in suction capacity due to accumulation of dust in the dust trapping section. In addition, the dust accumulated in the dust collection trap is transferred to the dust collection bag by operating the dust collection flow path switching means and closing the communication opening as necessary, which is an advantage of the dust collection bag. Dust can be discarded without dirtying the hands.
[0006]
The invention described in claim 2 of the present invention is that when the outer shape of the dust trap is made transparent or semi-transparent, and the amount of dust collected is confirmed, or a foreign object or an unintended object is sucked. Can be easily recognized from the outside.
[0007]
The invention according to claim 3 of the present invention is provided with a dust collection lid that can be opened and closed on the dust collection trap, and the dust captured before entering the dust collection bag can be discarded as necessary. It becomes possible.
[0008]
【Example】
Example 1
A first embodiment of the present invention will be described with reference to FIG. In addition, the same part as a prior art example attaches | subjects the same code | symbol, and omits the description.
[0009]
A suction unit 3 included in the blower chamber 2 of the main body 1 is provided, and a dust collection chamber 5 including a dust collection bag 4 is provided in front of the suction unit 3. The dust collection chamber 5 is upstream of the dust inflow direction 6. It is a thing which has the dust collection trap 9 with the dust collection volume 8 connected with the dust collection chamber 5 through the connection part 7 on the side.
[0010]
The operation of the above configuration will be described. Dust that has flowed in along with the airflow from the nozzle portion (not shown) by the suction means 3 flows into the dust trap 9 through the hose 10 and is separated from the airflow in the dust trap 9. Captured. The separated air flow passes through the dust trap 9 together with the fine dust that could not be separated, flows into the dust collecting chamber 5 through the connecting portion 7, and separates the fine dust with the dust bag 4. After that, it passes through the suction means 3 and is discharged from the exhaust hole 11 of the main body 1.
[0011]
With the above configuration, dust can be captured by the dust collection trap 9 before entering the dust collection bag 4, and the dust collection capacity of the dust collection bag 4 can be effectively utilized.
[0012]
In addition, by configuring the outer shell 12 forming the dust trap 9 to be transparent or translucent, the user can check the amount of dust collected or if a foreign object or unintentional object is sucked from the outside. It can be easily recognized.
[0013]
Furthermore, by providing a lid 13 that can be opened and closed on the dust trap 9, dust captured before entering the dust bag 4 can be discarded as necessary. The capacity can be used effectively.
[0014]
As shown in the figure, the dust trap 9 has a cyclone trap structure that swirls the airflow to separate the dust, thereby reducing a reduction in suction capacity due to accumulation of dust in the dust trap 9 part. be able to.
[0015]
(Example 2)
A second embodiment of the present invention will be described with reference to FIG. In addition, the same part as the said Example attaches | subjects the same code | symbol, and omits the description.
[0016]
The configuration shown in FIG. 2 is an example of the flow path switching means in the cyclone trap configuration, and the communication pipe 14 that connects the connecting portion 7 to the dust collecting chamber 5 and the dust collecting trap 9 portion is located near the dust accumulation portion 15. The secondary communication opening 16 and the main communication opening 17 having a cyclone trap structure open. The main communication opening 17 is provided with a dust collection channel switching means 18 for opening and closing the opening.
[0017]
With the above configuration, the dust that has flowed in along with the air flow from the nozzle portion by the suction unit 3 flows into the dust trap 9 through the hose 10. As shown in FIG. 2A, when the main communication opening 17 is open, the flow rate passing through the sub-communication opening 16 is reduced, and the flow velocity near the sub-communication opening 16 is reduced. Dust accelerated in the direction continues to turn.
[0018]
On the other hand, when the main communication opening 17 is closed as shown in FIG. 2B, the flow rate passing through the sub-communication opening 16 increases and the flow velocity in the vicinity of the sub-communication opening 16 increases. The dust that has flowed flows into the communication pipe 14 from the sub-communication opening 16, flows into the dust collection chamber 5 through the connecting portion 7, and is captured by the dust collection bag 4.
[0019]
With the above configuration, the dust accumulated in the dust trap 9 is transferred to the dust bag 4 as necessary, and the dust, which is an advantage of the dust bag 4, is discarded without dirtying the hands. It becomes possible.
[0020]
Further, as the dust collecting flow path switching means 18, in the cyclone trap configuration, a structure for switching the inflow angle in the vicinity of the inflow portion to the dust collecting trap 9, a means for switching the turning dust with an obstacle, the atmosphere, There is a configuration in which the inside of the dust trap 9 is bypassed. In addition, the inside of the dust trap 9 and the dust bag 4 in the dust chamber 5 may be bypassed.
[0021]
【The invention's effect】
According to the first aspect of the present invention, the suction means for sucking dust, the dust collection chamber disposed in front of the suction means and including the dust bag, and the suction disposed upstream of the dust collection chamber A dust collection trap having a cyclone trap configuration for rotating dust to separate dust, a communication pipe communicating with the inside of the dust collection trap, and a connecting portion for communicating the dust collection chamber and the communication pipe. An end opening of the pipe is provided in the vicinity of the dust accumulation portion, and a side wall of the communication pipe is provided with a dust collection flow path switching means for opening and closing the communication opening and the communication opening, and the dust collection flow path switching means When the communication opening is opened, the dust in the dust trap continues to swivel, and when the communication opening is closed by the dust collecting flow path switching means, the swirling dust flows into the communication pipe. And transferred to the dust bag in the dust chamber through the connecting part. By was formed, the dust in the cyclone trap structure of the dust collecting trap before entering the dust bag, pivots the sucked air becomes possible to capture and separate the dust, the dust collecting capacity of the dust bag Can be effectively utilized, and a reduction in suction capability due to accumulation of dust in the dust trapping portion can be reduced. In addition, the dust accumulated in the dust collection trap is transferred to the dust collection bag by operating the dust collection flow path switching means and closing the communication opening as necessary, which is an advantage of the dust collection bag. Dust can be discarded without dirtying the hands.
[0022]
According to the second aspect of the present invention, when the outer shape of the dust collection trap is made transparent or translucent, the user can confirm the amount of collected dust, or if a foreign object or an unintended object is sucked. Can be easily recognized from the outside.
[0023]
According to the third aspect of the present invention, the dust trap is provided with a lid for taking out dust that can be opened and closed, so that dust captured before entering the dust bag can be discarded as necessary. It becomes.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an electric vacuum cleaner main body showing a first embodiment of the present invention. FIG. 2 (a) is a cross-sectional view of an electric vacuum cleaner main body showing a second embodiment of the present invention. Cross-sectional view of the main body of the vacuum cleaner [Fig. 3] Cross-sectional view of the main body of the vacuum cleaner showing the conventional example [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body 2 Fan room 3 Suction means 4 Dust collection bag 5 Dust collection chamber 6 Dust inflow direction 7 Connection part 8 Dust collection volume 9 Dust collection trap 10 Hose 11 Exhaust hole 12 Outer shell 13 Lid 14 Communication pipe 15 Deposition part 16 Sub communication opening Part 17 Main communication opening 18 Dust collection flow path switching means

Claims (3)

A suction means for sucking dust, a dust collection chamber disposed in front of the suction means and including a dust collection bag, and a cyclone trap configuration for separating dust by swirling a suction airflow arranged upstream of the dust collection chamber A dust collection trap, a communication pipe communicating with the inside of the dust collection trap, and a connecting portion for communicating the dust collection chamber and the communication pipe, and an end opening of the communication pipe is disposed near the dust accumulation portion. Provided on the side wall of the communication pipe is provided with a communication opening and a dust collecting channel switching means for opening and closing the communication opening, and when the communication opening is opened by the dust collecting channel switching means Dust in the trap continues to swivel, and when the communication opening is closed by the dust collecting flow path switching means, the dust that has swirled flows into the communication pipe and is connected to the dust collecting bag in the dust collecting chamber via the connecting portion. A vacuum cleaner configured to be transported inside .   The vacuum cleaner according to claim 1, wherein the outer shell of the dust collecting trap is transparent or translucent.   The electric vacuum cleaner according to claim 1 or 2, wherein a dust collecting lid that can be opened and closed is provided on the dust collecting trap.

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