JPH0582208B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a vacuum cleaner designed to kill harmful microorganisms such as mites trapped in a dust collection chamber.

(B) Conventional technology Harmful microorganisms such as mites that are captured along with dust when cleaning a room, if left untreated, may breed in the dust collection chamber and escape from the vacuum cleaner body. It needs to be completely eradicated.

Therefore, Japanese Patent Publication No. 64-7774 discloses that the tip of the suction hose connected to the suction port of the dust collection chamber of the vacuum cleaner body is connected to the connection port formed on the exhaust side of the electric blower inside the main body. The exhaust flow from the electric blower is circulated through the suction hose to the dust collection chamber, and the temperature inside the dust collection chamber is heated to 50℃ or higher, which is the killing temperature for harmful microorganisms such as mites, thereby killing harmful microorganisms. A vacuum cleaner is shown.

However, in the above conventional technology, a connection port for connecting the suction hose must be formed on the exhaust side of the electric blower of the cleaning main body, which requires a special configuration of the vacuum cleaner main body and the formation of a connection port. This had the disadvantage of increasing the size of the vacuum cleaner itself.

(c) Problems to be Solved by the Invention The present invention has been made in view of the above-mentioned drawbacks, and eliminates harmful microorganisms such as mites trapped in the dust collection chamber in a short period of time without making the main body of the vacuum cleaner any special. The purpose of the present invention is to obtain a vacuum cleaner that can reliably kill bacteria.

(d) Means for Solving the Problems The present invention provides a vacuum cleaner body that incorporates an electric blower and has a dust collection chamber formed on the intake side of the electric blower, and a vacuum cleaner body that communicates with the dust collection chamber. a suction port formed in the vacuum cleaner body; an exhaust port formed in the vacuum cleaner body so as to communicate with the exhaust side of the electric blower; a small parts storage part formed in the vacuum cleaner main body; , a suction tool holder formed facing the exhaust passage leading from the exhaust side of the electric blower to the exhaust port; an exhaust introduction hole formed in the suction tool holder and communicating the suction tool holder and the exhaust passage; A suction device for the gap which is detachably housed in the suction device holding part and whose tip communicates with the exhaust passage through the exhaust introduction hole, one end of which is attached to the suction port and the other end of which is detachable from the suction device of the gap A freely connected exhaust circulation pipe body, and a temperature sensor that stops the electric blower when the temperature of the exhaust flow of the electric blower that circulates through the vacuum cleaner body and the exhaust circulation pipe body when the electric blower is driven reaches a predetermined temperature. It is characterized by comprising a switch means.

(e) Effect During cleaning operation, harmful microorganisms such as dust mites are sucked into the dust collection chamber and captured along with the dust.

During the microorganism extermination operation at the end of cleaning, both ends of the exhaust circulation pipe body are connected to the suction port of the cleaner body and the cylinder suction tool housed in the suction tool holding part. When the electric blower is driven, the electric blower's suction causes the exhaust flow of the electric blower to be guided from the cylinder suction device to the dust collection chamber through the exhaust circulation pipe body, and further sucked into the electric blower and circulated. The exhaust heat heats the inside of the dust collection chamber, raising the temperature inside the dust collection chamber to a temperature that kills harmful microorganisms such as mites, thereby killing the harmful microorganisms.

(f) Example Hereinafter, the vacuum cleaner of the present invention will be explained based on FIGS. 1 to 8.

1 is a vacuum cleaner body of the vacuum cleaner of the present invention; 2 is a main body case of the vacuum cleaner main body 1, which is composed of a main body upper case 3 and a main body lower case 4; the front part has an upper surface that can be opened and closed with a dust collection lid 5; An open dust collection chamber 6 is connected to the dust collection chamber 6 through a vent 7 at the rear, and a blower storage chamber 9 is provided with an exhaust port 8 in the rear wall, and a cord reel storage for storing a cord reel 10. Each chamber 11 is provided with a suction port 12 for connecting a suction hose to the front wall of the dust collection chamber 6.

Reference numeral 13 denotes an electric blower stored in the blower storage chamber 9, and the front fan case 13a is held and mounted via an annular shock absorber 14, so that the air intake side 1
5 and the intake side 16, and the intake side 1
5 is in airtight communication with the dust collection chamber 6.

Reference numeral 17 denotes a paper bag filter that is removably housed in the dust collection chamber 6. The paper bag filter 17 is made of an air-permeable paper bag that does not pass harmful microorganisms such as mites, and its mouth plate 17a is connected to the suction port. 12, and is mounted in the dust collection chamber 6 using a mouth plate fixture 18.

Reference numeral 19 denotes a cleaning small parts storage area formed at the right rear part of the main body upper case 3 located above the exhaust passage between the electric blower 13 and the exhaust port 8, and is equipped with a cover body 20 that can be opened and closed. . A suction tool holding cylinder 22 that serves as a suction tool holding part for vertically storing and holding a narrow mouth suction tool 21 is formed in the small parts storage section 19 and facing the exhaust passage. is an exhaust introduction hole 23 formed in the wall of the exhaust passage wall.
It communicates with the exhaust side 16 of the electric blower 13 via. The upper end opening portion of the suction tool holding cylinder 22 into which the narrow-mouth suction tool 21 is inserted and removed serves as an exhaust outlet 24 communicating with the exhaust side 16.

Furthermore, the lid body 20 has a locking pawl 25 for engaging with a locking hole in the upper case 3 of the main body to maintain the closed state.

Reference numeral 26 denotes an exhaust circulation pipe body that communicates the suction port 12 and the exhaust gas outlet 24 at the shortest distance, and has a substantially L-shaped suction side connection tube 27 inserted and connected to the suction port 12 at one end, and is connected to the suction tool holding pipe body. At the other end is a substantially L-shaped exhaust side connecting cylinder 28 which is inserted and connected to the narrow-mouth suction tool 21 housed in the exhaust outlet 24 of the cylinder 22.
These connecting tubes 27 and 28 are connected by a flexible hose 29.

Furthermore, a bimetallic temperature switch 30 is provided on the suction side connecting tube 27 and serves as a temperature switch means for detecting the temperature of the exhaust flow circulating within the circulation pipe body 26, and the temperature sensing portion 30a is connected to the inner surface of the connecting tube 27. The operating portion 30b is located within the switch button 32, which is exposed to the outside and is biased upward by a spring 31. When the switch button 32 is pressed, the temperature switch 30 is turned on and rotates the electric blower 13, so that the exhaust flow temperature reaches a predetermined temperature (60°C) that is 50°C or higher, which is the temperature at which mites die. When this happens, the electric blower 13 is turned off and the operation of the electric blower 13 is stopped. Further, 33 is a connection terminal for connecting the temperature switch 30 to a remote control terminal 34 of the suction port 12.

Further, the exhaust side connecting cylinder 28 has a fitting inner wall surface 3 on its tip opening side to which the narrow mouth suction tool 21 is fitted and connected.
7 is formed. And the exhaust side connection pipe 28
The locking pawl 25 of the lid body 20 engages with the outer peripheral portion of the lid 20 when connected to the narrow-mouth suction tool 21, thereby securing the narrow-mouth suction tool 21 and the exhaust side connecting tube 28 from the suction tool holding tube 22. An engaging recess 38 is formed to perform this.

Furthermore, FIG. 8 is an electric circuit diagram of the vacuum cleaner of the present invention, in which 39 is a remote control relay, 34 is the above-mentioned remote control terminal, and this remote control terminal 3
4 is selectively connected to a hand switch 40 located on the hand control section of the suction hose during cleaning operation, and to the bimetallic temperature switch 30 during tick extermination operation.

During cleaning operation, when a suction hose (not shown) with a floor suction device attached is connected to the suction port 12 and the hand switch 40 is turned on, the electric blower 13 is driven and harmful microorganisms such as mites are removed. The dust is sucked into the paper bag filter 17 in the dust collection chamber 6 and captured along with the dust.

Next, after the cleaning is completed, a mite extermination operation is performed to exterminate harmful microorganisms such as mites. During this mite extermination operation, connect the suction side connection tube 27 of the exhaust circulation pipe body 26 to the suction port 12 instead of the suction hose,
The exhaust side connecting cylinder 28 is connected to the narrow mouth suction tool 21 housed in the suction tool holding cylinder 22, and the locking claw 2 of the lid body 20 is connected.
5 is engaged with the engagement recess 28 to secure the attachment. When the switch button 32 is pressed in this state, the bimetallic temperature switch 30 is turned on and the electric blower 13 is driven, and due to the suction of the electric blower 13, the exhaust flow of the electric blower 13 enters the suction tool holding cylinder 22 from the exhaust side 16. The suction port 1 passes through the narrow-mouth suction device 21 and the exhaust circulation pipe body 26.
2 to the paper bag filter 17 in the dust collection chamber 6, and then sucked into the electric blower 13, circulated, and heated by the exhaust heat of the electric blower 13, heating the inside of the dust collection chamber 6. After the temperature reaches 50℃ or higher, which is the killing temperature for harmful microorganisms such as mites,
When the temperature of the exhaust gas circulating in the exhaust gas circulation pipe body 26 reaches a predetermined temperature (60° C.), the bimetallic temperature switch 30 is turned off and the operation of the electric blower 13 is stopped, and in this state, the harmful microorganisms are killed. are doing.

The bimetallic temperature switch 30 is provided in the suction type connecting tube 27 of the exhaust circulation pipe body 26,
The above-mentioned mite extermination operation can be performed simply by attaching the exhaust circulation pipe body 26 to the vacuum cleaner body 1, and since the exhaust circulation pipe body 26 with a short overall length is used during the mite extermination operation without using a long suction hose, the suction port 1
The temperature difference between the two parts and the exhaust outlet 24 part is reduced, so the temperature on the exhaust side 16 of the electric blower 13 does not rise abnormally, and the heating efficiency in the dust collection chamber 6 is increased, so that dust mites can be exterminated in a short time. You can finish driving.

During this mite extermination operation, the exhaust side connecting tube 28 of the exhaust circulation pipe body 26 constitutes a part of the exhaust flow circulation path by connecting to the narrow-mouth suction device 21 housed in the suction device holding tube 22. It is easy to manufacture, and the connecting portion of the exhaust side connecting tube 28 does not get in the way and does not become a nuisance.

Further, the exhaust circulation pipe body 26 can be used in place of a suction hose for simple cleaning. At this time, the narrow-mouth suction device 21 may be used by fitting into the fitting inner wall surface 37 of the exhaust side connecting tube 28, and since the suction side connecting tube 27 is approximately L-shaped, the exhaust circulation pipe can be used. Even if the body 26 is pulled, a stiffness acts between the suction side connecting cylinder 27 and the suction port 12, that is, the suction side connecting cylinder 27 and the suction port 12
A downward force acts on the outer part and an upward force acts on the inner part of the suction port 12, so that it does not easily come off.

(G) Effects of the Invention As described above, according to the present invention, the exhaust flow of the electric blower can be circulated using the cylindrical suction device housed in the suction device holding portion of the vacuum cleaner body, and the exhaust flow can be circulated in the dust collection chamber. can kill harmful microorganisms trapped in Furthermore, since the exhaust circulation pipe is connected to the cylindrical suction tool housed in the suction tool holding section, a special connection port is not required, and the main body of the vacuum cleaner does not become large.

[Brief explanation of drawings]

The drawings all relate to embodiments of the vacuum cleaner of the present invention; FIG. 1 is a longitudinal side view of the vacuum cleaner in a mite extermination state, FIG. 2 is a side view of the same, and FIG. 3 is a detailed sectional view of the main part of the suction port. Fig. 4 is a detailed cross-sectional view of the main parts of the cleaning accessory storage section, Fig. 5 is a plan view of the main body of the vacuum cleaner with the upper case and dust collection lid removed, and Fig. 6 is a perspective view of the main body of the vacuum cleaner. , FIG. 7 is a perspective view of the exhaust circulation pipe body, and FIG. 8 is an electric circuit diagram. 1... Vacuum cleaner body, 6... Dust collection chamber, 12... Suction port, 13... Electric blower, 19... Small parts storage for cleaning, 21... Narrow suction port, 22... Suction tool holding cylinder , 26... Exhaust circulation pipe body, 27...
Suction side connection tube, 28...Exhaust side connection tube.

Claims (1)

[Claims] 1. A vacuum cleaner body with a built-in electric blower and a dust collection chamber formed on the suction side of the electric blower, a suction port formed in the vacuum cleaner body so as to communicate with the dust collection chamber, and , an exhaust port formed in communication with the exhaust side of the electric blower, a small parts storage section formed in the vacuum cleaner body, and an exhaust port connected to the small parts storage section from the exhaust side of the electric blower to the exhaust port. a suction tool holder formed facing the passage; an exhaust introduction hole formed in the suction tool holder and communicating the suction tool holder and the exhaust passage; an exhaust suction device that communicates with the exhaust passage through an exhaust introduction hole; an exhaust circulation pipe body that has one end removably connected to the suction port and the other end to the intermediary suction device; An electric vacuum cleaner characterized in that it is equipped with a temperature-sensitive switch means for stopping the electric blower when the temperature of the exhaust flow of the electric blower circulating through the vacuum cleaner body and the exhaust circulation pipe reaches a predetermined temperature when the blower is driven. Machine.