JPH048325A - Tick killing device for electric cleaner - Google Patents

Abstract

PURPOSE:To kill ticks and minute insects by the use of a usual paper bag filter without requiring any particular operation by disposing an impeller driven by a motor in a sucking passage, and forming a high temperature atmosphere around the impeller or giving toxicity to the impeller surface. CONSTITUTION:A tick killing device 11 is installed in the middle of a pipe 5. When the switch of a cleaner is operated, a motor 18 is started together with a blower in a body. Consequently, an air flow 20a running in the axial direction of the pipe in the sucking passage forms an air flow 20b running in centrifugal direction by a rotating impeller 19, which air flow blows the air onto the inner circumferential surface 13a of a casing. As the impeller 19 is provided with a heater 21, the impeller surface and its circumference becomes a high temperature atmosphere of 50 deg.C or more, and the ticks surviving the shock are killed by the high temperature. The impeller surface has a coat of an insecticide such as hinoki oil or is impregnated with it, and the surface is toxic. Therefore, the ticks never killed by the mechanical shock are killed by the toxicity of the impeller surface.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mite killing device for a vacuum cleaner.

[Prior Art] Vacuum cleaners have been around for several decades, and they have spread to almost every household in Japan, and have now become one of the essential electrical appliances in every household. As a result, there are many types of vacuum cleaners, and their functions are becoming more sophisticated.

However, there is no limit to the development of functions, and the current situation is that each manufacturer develops and adds new functions every day, and new products that are more convenient and easier to use are introduced and put on the market.

General vacuum cleaners, which are the most popular type, have a built-in main unit that includes a motor-driven fan to suck air, a paper bag to filter and store dust from the sucked air, and a vacuum cleaner that moves on the floor and collects the air. a floor nozzle for sucking up dirt;
It consists of a hose that connects the floor nozzle and the main body.

Figure 5 is a side view of the above-mentioned general vacuum cleaner.
1) is the vacuum cleaner body, (2) is the floor brush, (3) is the hose, (4) is the operating section, (4a) is the switch, and (5) is the pipe. When using the vacuum cleaner, the user holds the operating part (4) in his hand, operates the switch (4a), and drags the main body (1) on the floor while opening the nozzle (2) at the tip of the vibrator (5). ) is moved to the floor, and the dust on the floor is sucked up along with the air.

By the way, there are insects such as Dermatophagoides mites living on the floors, tatami mats, carpets, and futons of homes, and great efforts are being made to exterminate these mites as they cause asthma. . The electric vacuum cleaner sucks these mites together with dust and collects them in a filter. Vacuum cleaners also have an important function in terms of getting rid of ticks, because when they collide with dirt or dust, a considerable portion of them is killed by the impact. However, there are many particles that survive even after being collected by the filter, and when the amount of dust collected by the filter increases and the suction air volume decreases,
The above-mentioned impact insecticidal effect becomes weaker, the mortality rate of mites decreases, and the amount of surviving mites further increases.

One of the traditional methods used to kill surviving mites is to infiltrate a paper bag filter with insecticide.
This is a method to ensure the death of the mites. Another method is to circulate the exhaust air from an electric blower and use the heat from the electric blower to heat the filter and kill the mites.

Furthermore, in addition to the above-mentioned method, there is also a method of mechanically killing mites using a spiral air flow impactor, as disclosed in Japanese Patent Application Laid-open No. 1-207027. Figure 6 is a perspective view showing the main parts, in which (6) is the suction passage, (7) is the casing, (8) is the screw, (9) is its shaft, (10)
is the support frame. The screw (8) is rotated by the airflow flowing through the suction passage (6), and the mites carried by the airflow collide with the screw (8), causing the mites to be killed by the impact.

[Problems to be Solved by the Invention] Although the above-mentioned various mite extermination devices are effective to some extent, they also have problems and cannot be said to be perfect in terms of exterminating mites.

First of all, filters that use chemicals are highly toxic and can be dangerous if you touch them when changing the paper bag for the filter, so households with young children especially need to be careful about storing spare paper bags.

In addition, with hot air circulation type or hot air flow type, it is necessary to perform this operation after cleaning, which is not only troublesome but also wastes electricity.

Furthermore, the method of colliding and killing the mites with a spiral air flow collision body has a small inertial force because the mites are small, and since the collision surface of the mites is the screw (8), it is easier to kill the mites than by colliding with the screw (8). More mites are carried away by the current, and the air volume is reduced due to clogged filters, so the effectiveness is not very high.

The present invention was made to solve the problems with the upper air quality of conventional mite extermination methods, and uses an ordinary paper bag filter to kill mites and minute insects without requiring any special operations. The purpose of the present invention is to provide a vacuum cleaner mite killing device that can be used to kill mites.

[Means for Solving the Problems] In order to achieve the above object, the vacuum cleaner mite killing device according to the present invention has an impeller driven by a motor arranged in a suction passage connected to a filter in the main body. At the same time, the impeller is equipped with means for forming a high temperature atmosphere around the impeller.

In addition to the means for forming a high-temperature atmosphere around the impeller, or separately, means for imparting toxicity to the impeller surface is provided.

[Operation: The motor-driven impeller placed in the suction passage above is
The airflow flowing in the axial direction of the passage in the suction passage is changed into a centrifugal airflow that blows against the inner peripheral surface of the passage. For this reason, the worms carried along with the air flow flowing in the axial direction of the passage are struck and collided with the inner peripheral surface of the passage by the centrifugal air flow, and are killed by the mechanical impact.

In addition, a high temperature atmosphere is formed around the impeller, and in addition to or separately, the impeller surface is given toxicity, so even if it is not killed by the impact, it will be killed by the high temperature or toxicity.

[Embodiment of the invention] Fig. 1 is a sectional view of a mite killing device showing an embodiment of the present invention, Fig. 2 is a perspective view of a vacuum cleaner equipped with a mite killing device, and Fig. 3 is an electric heater. A cross-sectional view of an impeller with a built-in
In the figure, (11) is the sterilization device, and (12) is the casing A.
, (12a) is the inner surface of the end, (13) is the casing B
, (13a) is the inner peripheral wall surface, (14) is the casing C,
(14a) is the outer surface of the end, (15) is the support frame, (16) is the support base, (17) is the bearing, (18) is the motor, (19)
is the impeller, (20a), (20b) are the airflow, (2
1) is a heater, (22) is a contact piece, and (23) is a contact plate.

As shown in Fig. 1, the mite killing device (11) has a motor (18) attached to a support stand (16) fixed to a support frame (15) fixed to the inside of the casing B (13). ,
An impeller (1) is connected to the motor (18) via a bearing (17).
9) and attach the casing A (
12) and the casing C (14) are screwed together.

In this way, the mite killing device (11) can be disassembled or assembled easily and quickly because the parts are assembled together mainly by screwing.

In addition, since the end inner surface (12a) of casing A and the end outer surface (14a) of casing B are formed in a tapered shape, this mite killing device (11) is attached to the end of the vibrator (5) formed in the tapered shape. It can be easily attached and detached from the section.

There are no particular restrictions on the specifications of the impeller (19), but it is desirable that the impeller (19) has low air resistance and can increase the speed of the air flow blown onto the inner peripheral surface (13a) of the casing B.

Further, the motor (18) is connected in parallel to the main blower motor in the main body via a switch (4a).

Furthermore, as shown in Figure 3, the impeller (19) has a built-in electric heater (21) and is supplied with electricity via the contact plate (23) and contact piece (22), so that it can be used not only on the impeller surface but also around it. A high temperature atmosphere will result. In general, the temperature for ticks is 5.
Since it is said that they cannot live at temperatures above 0°C, the capacity of the electric heater (21) should be determined with this in mind. By creating a high temperature atmosphere, the mites can be killed more completely. Note that the position of the electric heater (21) is not limited to the inside of the impeller, but may be any suitable position around the impeller.

Further, the present invention is configured such that the surface of the impeller is coated or impregnated with an insecticide such as cypress oil so that insects that come into contact with the impeller are killed.

The location where the insecticide is applied is not limited to the surface of the impeller, but may also be applied to the inner surface of the casing or any other location where the insecticide is effective.

When using the sterilization device (11) constructed in this way, first attach the sterilization device (11) to the middle of the vibrator (5) as shown in Fig. 2, and then press the vacuum cleaner switch ( When 4a) is operated, the motor (18) starts together with the blower inside the main body. As a result, the airflow (20a) flowing in the axial direction of the vibrator in the suction passage becomes an airflow (20b) flowing in the centrifugal direction by the rotating impeller (19), and blows air against the inner peripheral surface (13a) of the casing B. It happens. Therefore, the air flow (20a) along with the garbage
Some of the crabs carried by the impeller (1
9) and are killed by the impact, while the others are struck by the air flow (20b) against the inner circumferential surface (13a) of the casing B and are killed by the impact.

Further, since the impeller (19) has a built-in heater (21), the impeller surface and its surroundings are in a high temperature atmosphere of 50° C. or higher. Therefore, any mites that survive the impact will be killed by the high temperatures.

Additionally, the surface of the impeller is coated or impregnated with an insecticide such as cypress oil, making the surface toxic.

Therefore, even if they are not killed by the mechanical impact, they are killed by the toxicity on the impeller surface.

The method of killing mites by creating a high-temperature atmosphere or applying an insecticide is a complementary method to the method of killing mites by impact, and together with the method of killing mites by impact, it is possible to completely kill the mites. It is something.

Therefore, the formation of a high temperature atmosphere or the application of insecticides is
Each of these methods may be used alone, or both methods may be used together with the means for killing mites by impact.

When it is not necessary to kill the mites, the mite killing device (11) may be used by directly connecting the vibrator (5) without attaching it to the vacuum cleaner.

The mite killing device according to the present invention can be easily disassembled and assembled as described above, and can be easily attached to and removed from a vacuum cleaner. Therefore, even if the impeller (1B) is clogged with large debris, it is easy to remove it.

In this embodiment, the inner diameter of the portion of the casing that accommodates the impeller (16) is considerably larger than the inner diameter of the other suction passages, but it may be equal to or slightly larger than the inner diameter of the suction passages. It should be determined appropriately depending on the situation of the air flow (20a).

The connection of the casings A, B, and C (12), (13), and (14) is not limited to the screw connection in this embodiment, but may be an inro joint or the like.

Further, in this embodiment, the mite killing device (11) is installed in the middle of the pipe (5), but it is not limited to the pipe, and may be installed inside the floor nozzle or inside the main body.

Furthermore, the number of attachments is not limited to one.

In addition, the impeller (19) can easily become clogged with large debris, and when clogged with debris, not only will the rotation of the impeller (19) drop and the insects not die properly, but the vacuum cleaner's suction power will decrease, making cleaning itself difficult. Since the rotational speed of the impeller (19) may be insufficient, it is advantageous to provide a tachometer linked to the impeller so that the rotational state of the impeller (19) can be visually observed.

[Effects of the Invention] The device for killing mites for a vacuum cleaner according to the present invention has an impeller driven by a motor disposed in the suction passage, and also forms a high temperature atmosphere around the impeller or imparts toxicity to the surface of the impeller. Therefore, even if the mites are not killed by the mechanical impact caused by the centrifugal air flow created by the impeller, they are killed by the high temperature atmosphere created by the heater inside the impeller or by the toxicity of the impeller surface, resulting in the death of the mites. It had the great effect of perfecting the system.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a mite killing device according to an embodiment of the present invention, Fig. 2 is a perspective view of a vacuum cleaner equipped with a mite killing device, Fig. 3 is a sectional view of an impeller, and Fig. 4 is a sectional view of a vacuum cleaner equipped with a mite killing device. FIG. 5, a side view of the vacuum cleaner, is a sectional view of a conventional mite killing device. In the figure, (5) is a vibrator, (11) a tick killing device, and (12)
) is the casing A, (12a) is the inner surface of its end, (1
3) is casing B, (13a) is its inner peripheral surface, (1
4) is the casing C, (14a) is the outer surface of its end, (1
5) is a support frame, (16) is a support stand, (17) is a bearing, (
18) is the motor, (19) is the impeller, (20a),
(20b) is an air flow, (21) is a heater, (22) is a contact piece, and (23) is a contact plate. Note that the same reference numerals in the figures indicate the same or equivalent parts. Agent Patent Attorney Muneharu Sasaki

Claims (3)

[Claims] (1) In a vacuum cleaner, an electric motor-driven impeller is disposed in the suction passage connected to the filter, and a means for creating a high temperature atmosphere around the impeller and/or a means for imparting toxicity to the impeller surface is provided. A vacuum cleaner mite killing device characterized by: (2) The mite killing device for a vacuum cleaner according to claim 1, wherein the high temperature atmosphere forming means of the mite killing device is an electric heater built into the impeller. (3) The mite killing device for a vacuum cleaner according to claim 1, wherein the means for imparting toxicity to the impeller surface of the mite killing device is to apply or impregnate the impeller surface with an insecticide. .