JPH01119220A - Electric cleaner - Google Patents

Abstract

PURPOSE: To kill noxious insects such as ticks caught in a paper bag filter surely only by means of a vacuum cleaner main body by circulating exhaust flow of a motor-driven fan into the paper bag filter in the vacuum cleaner main body to heat the inside of the paper bag filter. CONSTITUTION: A dust collecting room 4 provided with a suction hole part 21 and storing freely removably a paper bag filter 14 and a blower storing room 6 communicating with the dust collecting room 4 and storing a motor- driven blower 7 and with a vent hole 5 are provided in a vacuum cleaner main body 1. In addition, in an air duct 27, under a condition where a suction hole part 21 is closed, the exhaust side of the motor-driven blower 7 communicates with the dust collecting room 4 to circulate vent flow of the motor-driven blower 7 into the paper bag filter. As the result, the paper bag filter 14 is heated with the vent flow of the motor-driven blower 7 and it is possible to kill noxious insects such as ticks in dust caught in the paper bag filter 14 efficiently and surely in a short time only by means of the vacuum cleaner main body.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a vacuum cleaner having a mechanism for killing pests such as mites sucked into a dust collection chamber.

(B) Conventional technology Pests such as mites that are inhaled with dust when cleaning a room are usually filtered out by a filter in the dust collection chamber and are not discharged outside the vacuum cleaner, but they breed inside the dust collection chamber. To prevent this, it is necessary to kill and completely exterminate them.

It is known that insect pests such as mites can be killed by applying hot air at about 50℃, and in order to achieve this, Japanese Patent Laid-Open No. 6
2-127026 and a vacuum cleaner as shown in FIG. 7 is known. That is, in the vacuum cleaner shown in FIG. 7, the tip of the suction hose (51) inserted into the suction port of the main body case (50) is connected to the exhaust outlet (53) of the electric blower (52) of the main body case (50). Connect the electric blower (
52) is circulated through the suction hose (51) to the dust collecting case (54) to kill pests such as mites in the dust collecting case (54).

However, according to this prior art, the main body case (50)
An exhaust outlet (53) is required on the exhaust side of the main body, which also serves as a connection for the suction case (51), and when exterminating pests such as mites, it is necessary to open quickly to set a long suction hose (51). The suction hose (51) attached to the outside of the case (50) may bend or hang down, making the main case (50) unstable, and the exhaust flow may circulate through the long suction hose (51). There are drawbacks such as the heating efficiency of the dust collection case (54) becoming poor and the heating time becoming longer. Furthermore, when disposing of garbage, the dust cannot be disposed of together with the dust collecting case (54), and there is a disadvantage that hands become dirty with the dust.

(C) Problems to be Solved by the Invention The present invention has a simple structure, and circulates the exhaust flow of an electric blower through the paper bag filter in the dust collection chamber within the vacuum cleaner body to heat the inside of the paper bag filter. Electric cleaning that efficiently and reliably kills dust mites and other pests trapped in paper bag filters in a short period of time with a chisel, allowing complete extermination and making garbage disposal clean and easy. The purpose is to take advantage of the opportunity.

(Means for Solving the Problems) As shown in the drawings, the vacuum cleaner of the present invention has a structure including a dust collection chamber provided with a suction port and a paper bag filter removably housed in the vacuum cleaner body; A blower storage chamber that communicates with the dust collection chamber, houses an electric blower, and has an exhaust port, and when the suction port is closed, the exhaust side of the electric blower and the dust collection chamber are connected to each other. The present invention is characterized in that it includes a ventilation passage that circulates the exhaust flow of the electric blower to the paper bag filter.

(N) Effect With the above configuration, during cleaning, dust and pests such as mites are sucked into the paper bag filter in the dust collection chamber from the suction hose connected to the suction port, and the exhaust flow from the electric blower is directed from the exhaust port. Discharged to the outside of the vacuum cleaner.

When the suction port is closed and the power supply to the electric blower is turned on after cleaning is completed, the exhaust flow of the electric blower will flow through the ventilation path into the dust collection chamber because the suction port will be blocked and the inside of the dust collection chamber will become negative pressure. The exhaust air is guided into the paper bag filter, so the exhaust air is circulated through the ventilation path, and the exhaust heat from the electric blower turns into hot air, which heats the dust collection chamber to a temperature of 50°C, which is the temperature at which pests such as mites die.
By heating the inside of the paper bag filter to a temperature above °C, pests such as mites in the dust trapped inside the paper bag filter are killed. At this time, the paper bag filter acts as a flow path resistance for the circulation of the exhaust flow, and the inside of the paper bag filter is heated in a short time. Furthermore, when disposing of garbage, the paper bag filter containing dust containing dead mites and other pests is removed from the dust collection chamber and disposed of.

(f) Example Hereinafter, the structure of the vacuum cleaner of the present invention will be explained based on FIGS. 1 to 6.

(1) is the main body case of the vacuum cleaner body; 1 body upper case (1)
It consists of a main body lower case (lb), and a dust collection chamber (4) with a top opening (3) that can be opened and closed with a lid (2) at the front.
The rear portions are provided with blower storage chambers (6) communicating with the upper dust chamber (4) and having exhaust ports (5) bored in the rear wall.

(7) is an electric blower stored in the blower storage chamber (6), and the front fan case (7a) is shaped like an annular [face piece (8).
) of the main body upper case (la) through the upper support rib (
9) and the lower support rib (1
0), the intake side (1)) and the exhaust side (12) are sealed and fixed.

(13) is a box-shaped filter with air permeability and shape retention that is housed in the dust collection chamber (4) in a manner that can be inserted and removed from the upper surface opening (3); (14) is the box-shaped filter (13); This is a disposable paper bag filter (14) that is removably housed in the inside of the bag (14), and the paper bag filter (14) is made of a breathable paper bag that does not allow pests such as mites to pass through. (151 is a holding frame for the opening plate (14a) of the paper bag filter (14), (16) is a clamp body that engages the opening plate (14al), and the holding frame (
15) is placed on the opening edge of the box-shaped filter (13).

Further, the lid body (2) is connected to the outer cover (17) if (1
8), with a double wall configuration consisting of the rear part of the main body upper case (1a
) is pivoted in a state where it is always biased in the open direction by a normally open biasing spring (19), and the front part is locked by a clamp body (20) provided on the lower case (1b) of the main body. By doing so, the upper surface opening (3) is closed.

(21) is provided on the lid (2), and a suction hose (21) is provided on the lid (2).
2), a suction hole (23) is formed in the outer cover (17), and a suction hole (23) is provided between the outer cover (17) and the back cover (181) below the chain hole (23). A sliding shutter plate (25) that freely opens and closes the upper part of the provided hose connection tube (24) and the outer hose connection tube (24) is provided.
), and a mouth plate pressing gasket (26) located at the lower part of the hose connection tube (24) is configured to press the mouth plate (
14a) in an airtight manner.

(27) directs the exhaust flow of the electric blower (7) to the SRS chamber (
4) is a ventilation passage provided in the vacuum cleaner body for circulation, and is composed of a lid side ventilation passage (28) and a main body side ventilation passage (29). The lid side ventilation passage (28) is located behind the outer cover (17)! (18), one end of which communicates with an exhaust outlet (30) opened on the side of the hose connection tube (24), and the other end of which communicates with an exhaust outlet (30) that is disposed between the main body case (
1) is an exhaust inflow port (32) that protrudes from the M surface (31) on the lid body side. The exhaust outlet (30) connects the suction hose (22) to the hose connection pipe (24).
When the connecting pipe (22a) is inserted, it is closed, and when the connecting pipe (22a) is not inserted, it is opened.

Further, the main body side ventilation passage (29) is connected to the main body case (1).
), the electric blower (7) is provided from the exhaust side (12) through the upper support rib (9), and is provided on the main body side facing surface (33) facing the exhaust inlet (32). An exhaust outlet (34) is opened. Further, (35) is connected to the seal gasket attached to the front 2 exhaust inlet (32), and when the lid body (2) is closed, the exhaust inlet (32)
and the exhaust outlet (34) are brought into close contact and communicated airtightly.

(36) is the suction port (28) of the lid side ventilation passage (28).
21) A temperature sensing switch is used as a means for turning on the delay switch of the electric blower (7) installed nearby, and the sensing switch (36) is configured to press its reset button (37) near the suction port (21). It protrudes outward from the outer cover (17) of the vacuum cleaner. The detection switch (36) is turned on by pressing the reset button (37), and the temperature of the exhaust flow passing through the lid-side ventilation passage (28) is 50°C, which is the temperature at which pests such as mites are killed. At temperatures above °C,
In addition, it is configured to turn off when the sensor (36al) senses that the set temperature of 65° C., which is a temperature that does not cause thermal effects such as thermal deformation on the synthetic resin constituting the main body of the vacuum cleaner, has been reached.

In this embodiment, this temperature sensing switch (36) is installed in the ventilation passage (28) on the lid side, but it may also be installed on the side wall of the dust collection chamber (4). In this case, the reset button is installed in the lower case (lb ).

Furthermore, as a delay switch means for the electric blower (7), the dust collection chamber (4) is used instead of the temperature sensing switch (36).
) is turned on for a predetermined period of time (e.g. 2 to 6 minutes) and then turned off in order to keep the inside of the vacuum cleaner at a temperature of 50 degrees Celsius or higher and at a temperature that does not cause thermal deformation or other thermal effects on the synthetic resin that makes up the vacuum cleaner body. A timer switch may also be used.

(38) is the suction port (21) of the cover (17).
), the shutter plate (25) is connected to the hose connection tube (24
) When the upper part is closed, the tip of the shutter plate (25) comes into contact and turns on the lock switch (38), which supplies power to the electric blower (7) via the temperature sensing switch (36). .

Further, in the electric circuit diagram shown in FIG. 6, (39) is a control circuit section, and (40) is a hand operation section mounted on the hand pipe of the suction hose (22). When cleaning, open the shutter plate (25) as shown in Figure 4 and connect the suction hose (22) connection pipe (22al) to the hose connection tube (24).
However, in this state, the exhaust outlet (30) of the lid side ventilation path (28) is blocked by the connecting pipe (22a), so the exhaust flow from the electric blower (7) is not directed to the dust collection chamber (4). It is not circulated and is discharged from the exhaust port (5) and therefore the suction hose (
Pests such as mites sucked together with dust from the dust collection chamber (4) are captured in the paper bag filter (14) of the dust collection chamber (4).

Next, after cleaning is completed, the shutter plate (25) is closed as shown in FIG. 1 to exterminate pests such as mites.

Then, the limit switch (38) turns on, and then when the reset button (37) is pressed, the temperature sensing switch (38) turns on.
6) is turned on, power is supplied to the electric blower (7), and the electric blower (7) rotates. At this time, since the suction port (21) is closed by the shutter plate (25), the dust collection chamber (4)
The internal pressure becomes negative, and the exhaust flow from the electric blower i (7) is sucked into the dust collection chamber (4) via the main unit side ventilation passages (2) and the lid side ventilation passage (28), and this process is repeated to exhaust the air. The flow circulates, and the exhaust heat from the electric blower (7) turns into hot air, heating the inside of the dust collection chamber (4) and paper bag filter (14) to 50°C.
At the exhaust flow temperature above, pests such as mites in the dust trapped in the paper bag filter (14) are killed, and the exhaust flow temperature reaches 6.
When the temperature reaches 5° C., the temperature sensing switch (36) is turned off, the electric blower (7) is stopped, and the process ends. and,
In the circulating state of the exhaust flow, the paper bag filter (14
) acts as a flow path resistance for the circulation of the exhaust flow, and the inside of the paper bag filter (14) is heated in a short time, causing the paper bag filter (14) to heat up in a short time.
14) Pests such as mites in the dust trapped inside can be efficiently killed and exterminated in a short time.

Furthermore, when disposing of garbage, open the lid (2) and use a paper bag filter (14) that captures dust containing pests such as dead mites.
) from the dust collection chamber (4) and remove it from the paper bag filter (14).
) and replace it with a new paper bag filter (14), you can cleanly and easily dispose of the garbage without getting your hands dirty.

(G) Effects of the Invention The vacuum cleaner of the present invention is constructed as described above. In particular, the vacuum cleaner body includes an SU, and when the suction port of the chamber is closed, the exhaust flow of the electric blower is directed into the dust collecting chamber. Since the paper bag filter is equipped with a ventilation passage for circulation, pests such as mites trapped in the paper bag filter can be easily and conveniently exterminated using only the vacuum cleaner itself. In addition, since the ventilation passage directly communicates the dust collection chamber and the blower storage chamber, the exhaust air can be circulated in a short distance, and the paper bag filter acts as a flow path resistance for the circulation of the exhaust air, allowing the paper bag filter to efficiently circulate in a short period of time. By heating the paper bag filter, you can completely exterminate dust mites and other pests in the dust trapped inside the paper bag filter.

Furthermore, when disposing of garbage, the paper bag filter containing the dust containing dead mites and other pests can be disposed of together with the paper bag filter, making it possible to dispose of garbage cleanly and easily without getting your hands dirty.

[Brief explanation of the drawing]

The drawings all relate to a vacuum cleaner, and FIG. 1 is a sectional front view of the main part of an embodiment of the present invention, FIG. 2 is a perspective view of the same, FIG. 3 is a sectional plan view of the main part, and FIG. 4 is a cleaning state of the same. 5 is a perspective view of the main parts with the lid open, FIG. 6 is an electric circuit diagram, and FIG. 7 is an explanatory sectional view of the conventional example. (4)...Dust collection room, (6)...Blower storage room, (7
)...Electric blower, (14)...Paper bag filter,
(21)... Suction port, (27)... Ventilation path.

Claims (1)

[Claims] (1) Inside the vacuum cleaner body, there is a dust collection chamber that is equipped with a suction port and that removably stores a paper bag filter, and a blower storage chamber that communicates with the dust collection chamber, houses an electric blower, and has an exhaust port. and a ventilation passage that communicates the exhaust side of the electric blower with the dust collection chamber and circulates the exhaust flow of the electric blower to the paper bag filter when the suction port is closed. Vacuum cleaner.