JPH02289214A - Electric cleaner - Google Patents

Abstract

PURPOSE:To annihilate noxious insects such as ticks, etc., efficiently and surely without decreasing the dust collecting capacity of a dust collecting chamber by forming a suction port part at a cover, and providing an exhaust supply port which makes a cover-side ventilation path communicates with the exhaust side of an electric blower, and making the cover-side ventilation path and the exhaust supply port communicate with each other through a seal packing. CONSTITUTION:In cleaning, dust and noxious insects such as ticks, etc., are sucked in a dust collecting chamber by a suction hose 22 connected to a suction port part 21. When the suction port part 21 is closed after cleaning finish and current supply to an electric blower 7 is turned on, since a cover-side ventilation path 28 is communicating with the suction port part 21, the exhaust flow of the electric blower 7 is introduced by the negative pressure of a dust collecting chamber 4 through the cover-side ventilation path 28 from a main-body-side exhaust supply port 34 and circulates there, and becomes hot currents by the exhaust heat of the electric blower 7 and heats the inside of the dust collecting chamber to 50 deg.C or more thereby annihilating noxioue insects such as ticks, etc. And since the cover-side ventilation path 28 is equipped at the cover body 2 of the dust collecting chamber, there is no necessity to decrease the capacity of the dust collecting chamber. Moreover, the cover-side ventilation path 28 and the exhaust supply port 32 communicate with each other by a seal packing.

Description

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

[Prior art] Pests such as mites that are inhaled along with M4 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 there is a risk that they may breed inside the dust collection chamber. To prevent this, it is necessary to kill and completely exterminate them.

Pests such as mites are said to be killed by applying hot air at about 50 degrees Celsius. For example, in JP-A-62, there is a system that circulates the exhaust heat generated by driving an electric blower into the dust collection chamber using a hose to increase the temperature inside the dust collection chamber and kill pests such as mites in the dust collection chamber. It is publicly known as shown in Japanese Patent No.-127026. The outline thereof is as shown in FIG. 7, and 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.
2 to the dust collection chamber 5 via the suction hose 51.
4 to kill pests such as mites in the dust collection chamber 54.

[Problems to be Solved by the Invention] However, in the conventional device, an exhaust outlet 53 that also serves as a connection for the suction hose 51 is required on the exhaust side of the main body case 50, and when the vacuum cleaner is used, there is no need for centralized exhaust. As a result, the exhaust noise becomes louder, and when exterminating pests such as mites, it takes time and effort to set up a long suction hose 51. Also, the suction hose 51 attached to the outside of the main body case 50 may bend or hang, causing the main body case 50 to In addition, since the exhaust flow is circulated through the long suction hose 51, the heating effect of the dust collecting chamber 54 becomes poor and the heating time becomes long.

This invention was made in view of the problems of the prior art, and its purpose is to utilize the space in the lid of the dust collection chamber to divert the exhaust flow of an electric blower to a vacuum cleaner. By enabling circulation within the main unit, the dust mites and other pests can be efficiently and reliably killed using only the vacuum cleaner itself, without reducing the dust collection capacity of the dust collection chamber, allowing for complete extermination. In addition, the present invention aims to provide a vacuum cleaner in which the lid-side ventilation passage and the exhaust supply port are connected with good airtightness.

[Means for Solving the Problems] In order to achieve the above object, the vacuum cleaner of the present invention includes a dust collection chamber and an electric blower communicated with the dust collection chamber, housed in the vacuum cleaner body, and A vacuum cleaner is provided with a blower storage chamber having an exhaust port, and a lid body that covers the opening of the dust collection chamber so as to be openable and closable, the vacuum cleaner having a suction port portion formed in the lid body, and one end of the lid body. The suction port is equipped with a lid-side ventilation passage whose other end is opened toward the blower storage chamber, and the blower storage chamber includes an exhaust supply port that communicates the lid-side ventilation passage with the exhaust side of the electric blower. and the lid body side ventilation passage and the exhaust gas supply port are communicated with each other via a seal packing.

[Operation: During cleaning, dust and pests such as mites are sucked into the dust collection chamber by the suction hose connected to the suction port.

After cleaning, when the suction port is closed and the electric blower and power supply to mi are turned on, the exhaust flow of the electric blower is reduced due to the negative pressure in the dust collection chamber because the ventilation passage on the lid side communicates with the suction port. The air is guided and circulated from the exhaust supply port on the main body side to the dust collection chamber via the ventilation path on the lid side, and becomes hot air by the exhaust heat of the electric blower, heating the dust collection chamber to 50℃ or more and killing pests such as mites. let

Since the lid-side ventilation passage is provided on the lid of the dust collection chamber, there is no need to reduce the capacity of the dust collection chamber due to the formation of the ventilation passage. Furthermore, since the suction port is formed on the lid, the ventilation path can be made short and the suction hose can be easily inserted or removed.

Furthermore, the lid-side ventilation passage and the exhaust supply port can be connected via a seal packing to form an airtight ventilation passage.

[Example] An example will be described below with reference to FIGS. 1 to 6.

In the figure, l is the main body case of the vacuum cleaner body, which consists of a main body upper case 1a and a main body lower case 1b.The front part has a dust collection chamber 4 with a top opening 3 that can be opened and closed with a lid body 2, and the rear part has a dust collection chamber 4. Each of the air blower storage chambers 6 is provided with a blower storage chamber 6 communicating with the dust collection chamber 4 and having an exhaust port 5 bored in the rear wall.

7 is an electric blower stored in the blower storage chamber 6;
By sandwiching the front fan case 7a between the upper support rib 9 of the main body upper case 1a and the lower support rib 10 of the main body lower case 1a via the annular buffer 8, the air intake side 11 and the exhaust side 12 and is fixed with a seal.

Reference numeral 13 denotes a box-shaped filter 1 having breathability and shape retention, which is housed in the dust collection chamber 4 in a manner that can be inserted and removed from the upper surface opening 3.
Reference numeral 4 denotes a paper bag filter that is removably housed in the box-shaped filter 13, and the paper bag filter 14 is made of an air-permeable paper bag that does not allow pests such as mites to pass through. 15 is a holding frame for the opening plate 14a of the paper bag filter 14; 16 is a clamp body for engaging the opening plate 14a; the holding frame 15 is placed on the opening edge of the box-shaped filter 13;

Furthermore, the lid body 2 has a double wall structure consisting of an outer cover 17 and a back cover 18, and its rear portion is pivoted to the main body upper case 1a in a state where it is always biased in the opening direction by a normally open biasing spring 19. At the same time, the front portion is locked by a clamp body 20 provided on the main body lower case 1b, thereby closing the upper surface frontage 3.

Reference numeral 21 denotes a suction port provided in the lid 2 and connected to the suction hose 22, which has a suction hole 23 in the outer cover 17 and connects the outer cover 17 below the hole 23 with the back 1f1.
8, and a sliding shutter plate 25 that opens and closes the upper part of the hose connection tube 24.
4. The mouth plate pressing gasket 26 located at the bottom of the mouth plate 1
4a in an airtight manner.

Reference numeral 27 denotes a ventilation passage provided in the vacuum cleaner main body for circulating the exhaust flow of the electric air blower 41 [7 to the dust collection chamber 4, 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 connected to the outer cover 17 and the back M18.
One end communicates with an exhaust outlet 30 provided on the side of the hose connection tube 24, and the other end serves as an exhaust inlet 32 protruding from the lid side facing surface 31 of the main body case 1. ing. The exhaust outlet 30 is closed when the connecting pipe 22a of the suction hose 22 is inserted into the hose connecting tube 24, and is opened when the connecting pipe 22a is not inserted.

Furthermore, the main body side ventilation passage 29 is located inside the main body case 1.
An exhaust gas supply port 34 is provided from the exhaust side 12 of the electric blower 7 through the upper support rib 9, and is opened on the main body side facing surface 33 facing the exhaust gas inflow port 32. Further, 35 is a seal gasket attached to the exhaust inlet 32, and when the lid body 2 is in the closed state, the exhaust inlet 32 is closed.
2 and the exhaust supply port 34 are brought into close contact and communicated airtightly.

Reference numeral 36 denotes a temperature sensing switch provided near the suction port 21 of the lid-side ventilation passage 28, and the sensing switch 36 is configured to push its reset button 37 outward from the outer cover 17 near the suction port 21 of the vacuum cleaner. It stands out. 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 is 50° C., which is the temperature at which pests such as mites are killed.
As described above, the vacuum cleaner is configured to turn off when the sensor 36a senses that the set temperature has reached 65° C., which is a temperature that does not cause thermal effects such as thermal deformation on the synthetic resin constituting the vacuum cleaner body.

Although this temperature sensing switch 36 is provided in the lid-side ventilation passage 28 in this embodiment, it may be attached to the side wall of the dust collection chamber 4, and in this case, the reset button may be made to protrude from the main body lower case 1b.

Reference numeral 38 denotes a limit switch attached to the back surface of the outer cover 17 facing the mouth edge of the suction port 21, with which the tip of the shutter plate 25 comes into contact when the shutter plate 25 closes the upper part of the hose connection W24. Then, the limit switch 38 is turned on, and power is supplied 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, the shutter plate 25 is opened as shown in FIG. 4, and the connection pipe 22a of the suction hose 22 is
4, but in this state, the exhaust outlet 30 of the lid-side ventilation passage 28 is blocked by the connecting pipe 22a, so the exhaust flow from the electric blower 7 does not circulate to the dust collection chamber 4, but is discharged from the exhaust port 5. Therefore, pests such as mites sucked together with M dust from the suction hose 22 are stored 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.

Due to the closure of this shutter plate 25, the limit switch 3
8 is turned on, and then the reset button 37 is pressed, the temperature sensing switch 36 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 inside of the dust collection chamber 4 becomes negative pressure, and the exhaust flow from the electric blower 7 flows from the exhaust supply port 34 of the main body side ventilation path 29 to the lid body side ventilation path 28. The exhaust flow is circulated by repeating this process, and the exhaust heat from the electric blower 7 turns into hot air, which heats the dust collection chamber 4 and blows the paper bag at an exhaust temperature of 50°C or higher. When pests such as mites stored in the filter 14 are killed and the exhaust gas temperature reaches 65° C., the temperature sensing switch 36 is turned off and the electric blower 4117 is stopped.

[Effects of the Invention] The vacuum cleaner according to the present invention removes pests such as mites that are sucked into the dust collection chamber by the suction hose during cleaning. Since the temperature inside the dust collection chamber is increased to kill pests such as mites in the dust collection chamber by circulating the dust without using a suction hose, all of the problems associated with using a suction hose as in the conventional case are solved. In addition, a ventilation passage on the lid side of the dust collection chamber that guides the exhaust flow from the electric blower to the suction port via the exhaust supply port is provided, so that the circulation path for exhaust heat can be shortened. The dust collecting chamber is heated in a short time to efficiently and reliably kill pests such as mites, and since the suction port is formed in the lid, it is extremely easy to insert or remove the suction bowl.

In addition, the ventilation passage on the lid body side and the exhaust supply port are connected via a seal packing, so it is possible to form a ventilation passage in the lid body that can be freely moved in and out of the main body, and there is no exhaust leakage between the ventilation passages, ensuring airtightness. can be maintained sufficiently, and the inside of the dust collection chamber can be heated even more efficiently.

[Brief explanation of drawings]

FIG. 1 is a sectional front view of essential parts of an embodiment of the vacuum cleaner according to the present invention, FIG. 2 is a perspective view of the same, FIG. 3 is a sectional plan view of the essential parts, and FIG. FIG. 5 is a perspective view of essential parts with the lid open, FIG. 6 is an electric circuit diagram, and FIG. 7 is an explanatory sectional view of a conventional example. l... Main body case, 2... Lid body, 4... Dust collection chamber,
5... Exhaust port, 6... Blower storage chamber, 7... Electric blower, 21... Suction port, 28... Lid side ventilation path, 34... Exhaust supply port, 35...・Seal pack skin. Agent Patent Attorney Art Supplies Mikio Figure 6 Figure 7

Claims (1)

[Claims] A dust collection chamber and a blower storage chamber that communicates with the dust collection chamber, houses an electric blower, and has an exhaust port are disposed in a vacuum cleaner body, and a lid body covers the opening of the dust collection chamber so as to be openable and closable. In the vacuum cleaner, a suction port is formed in the lid, and the lid is equipped with a lid-side ventilation passage having one end opened to the suction port and the other end opened to the blower storage chamber side, The blower storage chamber is equipped with an exhaust supply port that communicates the lid-side ventilation path with the exhaust side of the electric blower, and the lid-side ventilation path and the exhaust supply port are communicated via a seal packing. A vacuum cleaner.