JP2010227473A - Electric vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a high-security electric vacuum cleaner whose filter can easily be replaced by detaching its exhaust cover even when the filter is clogged. <P>SOLUTION: The electric vacuum cleaner includes: a fan motor for sucking dust; a dust collection chamber for collecting dust which communicates with a suction tool for sucking dust; a body 1 which is provided with an exhaust port for releasing exhaust air from the fan motor to the outside; a filter 5 for collecting the dust component in the exhaust air which is in contact with the exhaust port; and the exhaust cover 6 having a spring 7 which biases the filter toward the exhaust port and can move the filter so that it may be separated from the exhaust port when it is subjected to an exhaust pressure equal to or larger than a predetermined value. The exhaust cover holds the filter and can be freely attached to and detached from the body 1. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vacuum cleaner used in a general home, and particularly relates to safety.

A conventional vacuum cleaner will be described with reference to FIG. The vacuum cleaner shown in FIG. 7 includes a fan motor 14 for sucking dust into the main body 13, a dust collection chamber 15 for collecting dust by communicating with a suction tool for sucking dust, and the fan motor 14. And an exhaust filter 18 for collecting fine dust in an exhaust passage 17 between the main body 13 and the exhaust port 16. The exhaust filter 18 is provided so as to be movable within a predetermined range along the exhaust passage 17 and is urged by a spring 19 toward the exhaust port 16 so that the exhaust filter 18 has an exhaust pressure equal to or higher than a predetermined value on the exhaust passage 17 side. A bypass passage 20 is provided in the main body 13 so as to pass through the front and rear of the exhaust filter 18 when being shifted to the exhaust port 16 side (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 8-17752

  However, in the configuration of the conventional vacuum cleaner, the vacuum cleaner is used for a long time, and carbon powder discharged from the fan motor 14 and fine dust leaking from the dust collecting chamber 15 accumulate in the exhaust filter 18. Even when the exhaust filter 18 is clogged, the exhaust filter 18 cannot be easily replaced. Therefore, dirty exhaust gas containing fine dust that does not pass through the exhaust filter 18 is discharged from the bypass passage 20 to the outside. The air in the room was polluted by continuing to do so.

  In addition, since the exhaust filter 18 does not have a means for notifying that the exhaust filter 18 is clogged, the user does not notice that the room is contaminated with dirty exhaust gas, so that the user can improve his / her health by using it for a long time. There was also a risk of harm.

  This invention solves the said subject, and it aims at providing the vacuum cleaner excellent in safety | security.

  In order to solve the above problems, the present invention provides a fan motor for sucking dust, a dust collecting chamber for collecting dust, communicating with a suction tool for sucking dust, and exhaust from the fan motor. A main body having an exhaust port for discharging to the outside, a filter in contact with the exhaust port and collecting dust components in the exhaust, and urging the filter toward the exhaust port side, a predetermined value or more When the exhaust pressure is received, the filter includes an exhaust cover having a spring that moves in a direction away from the exhaust port, and the exhaust cover holds the filter and is detachable from the main body. Even when carbon dust discharged from the fan motor or fine dust leaking from the dust collection chamber accumulates in the filter for a long period of time and the filter is clogged, Since the filter can be easily replaced by removing the air cover, the user can clean the air in the room by continuously releasing the dirty exhaust gas containing fine dust that does not pass through the filter for a long time. It is possible to provide a highly safe vacuum cleaner that can prevent dangers such as health damage.

  The present invention can provide a vacuum cleaner excellent in safety.

  A first invention communicates with a fan motor for sucking dust, a suction tool for sucking dust, a dust collecting chamber for collecting dust, and for discharging exhaust air from the fan motor to the outside. A main body having an exhaust port, a filter in contact with the exhaust port and collecting dust components in the exhaust, and the filter is urged toward the exhaust port, and an exhaust pressure exceeding a predetermined value is received. When the vacuum cleaner is used for a long period of time, the filter includes an exhaust cover having a spring that moves in a direction away from the exhaust port, and the exhaust cover holds the filter and is detachable from the main body. Even when carbon powder discharged from the fan motor or fine dust leaking from the dust collecting chamber accumulates in the filter and the filter is clogged, the exhaust cover is removed. Because the filter can be easily replaced, it will harm the user's health by polluting the air in the room by continuing to release dirty exhaust containing fine dust that does not pass through the filter for a long time. An electric vacuum cleaner excellent in safety capable of preventing danger can be provided.

  The second aspect of the invention can provide an inexpensive and highly safe vacuum cleaner that can reduce the number of parts by integrally forming the spring shape from the filter.

  According to a third aspect of the present invention, a whistle body is provided in the vicinity of the exhaust port, and the filter is clogged by a user by sounding the whistle body by exhaust gas discharged from a gap when the filter is separated from the exhaust port. Therefore, it is possible to provide a highly safe electric vacuum cleaner that can be audibly informed that further use is dangerous.

  According to a fourth aspect of the present invention, when the filter is separated from the exhaust port, a display switch for displaying a display object such as an LED is provided in the main body, so that the filter is clogged to the user. The vacuum cleaner excellent in safety | security which can display visually that it is dangerous to use can be provided.

  According to a fifth aspect of the present invention, when the filter is separated from the exhaust port, a safety switch for stopping the operation of the fan motor is provided in the main body so that the safety switch operates when the filter is clogged. By forcibly stopping the fan motor, the exhaust of dirty exhaust gas containing fine dust that does not pass through the filter for a long time continues to be released to the outside, and the user's health is harmed by polluting the air in the room. An electric vacuum cleaner excellent in safety capable of preventing danger can be provided.

(Embodiment 1)
A first embodiment of the present invention will be described with reference to FIGS. 1 to 9, reference numeral 1 denotes a fan motor 2 for sucking dust, a dust collecting chamber 3 for collecting sucked dust, and an exhaust for discharging exhaust from the fan motor 2 to the outside. A main body having a port 4, 5 is a filter that contacts the exhaust port 4 and collects dust components in the exhaust, and 6 is an exhaust cover for holding the filter 5. It is detachable from. The exhaust cover 6 is provided with a spring 7 for urging the filter 5 toward the exhaust port 4, and the carbon discharged from the fan motor 2 as shown in FIG. 2 when a vacuum cleaner is used for a long time. Powder or fine dust leaking from the dust collection chamber 3 accumulates in the filter 5, causing the filter 5 to be clogged, and the filter 5 biased by the spring 7 receives an exhaust pressure exceeding a predetermined value. Sometimes the filter 5 moves in a direction away from the exhaust port 4.

Even when the vacuum cleaner is used for a long time, carbon dust discharged from the fan motor 2 or fine dust leaking from the dust collecting chamber 3 accumulates in the filter 5 and the filter 5 is clogged. Since the filter 5 can be easily replaced by removing the exhaust cover 6, the room air is polluted by continuing to discharge the dirty exhaust gas containing fine dust that does not pass through the filter 5 for a long period of time. Therefore, it is possible to provide a vacuum cleaner excellent in safety that can prevent a danger of harming the health of the user.

  In FIG. 3, the spring 7 is integrally formed with the exhaust cover 6, thereby providing an inexpensive and highly safe vacuum cleaner that can reduce the number of parts.

  In FIG. 4, a guide rib 8 is provided near the periphery of the filter 5 in the exhaust port 4, and a whistle body 9 is provided on the guide rib 8. When the filter 5 is separated from the exhaust port 4 due to exhaust pressure, the filter 5 is clogged by the user by ringing the whistle body 9 with the exhaust gas ejected from the gap. Therefore, it is possible to provide a highly safe vacuum cleaner that can reliably notify the user that sound is dangerous.

  In FIG. 5, 10 is an electric display body such as an LED, and when the filter 5 is separated from the exhaust port 4 due to exhaust pressure, the display switch 11 provided in the exhaust cover 6 is operated to operate the electrical display body. By turning on or off the display body 10, it is possible to display the replacement time of the filter 5, thereby indicating to the user that the filter 5 is clogged and it is dangerous to use it further. Therefore, it is possible to provide a highly safe vacuum cleaner that can be made to operate.

  In FIG. 6, 12 is a safety switch for controlling the operation of the fan motor 2, and when the filter 5 is separated from the exhaust port 4 by exhaust pressure, the safety switch 12 provided in the exhaust cover 6 is The fan motor 2 is forcibly stopped by operating it, so that when the filter 5 is clogged, the exhaust of the dirty air containing fine dust that does not pass through the filter for a long period of time is continuously released to the outside. Therefore, it is possible to provide a highly safe vacuum cleaner that can prevent dangers such as harming the health of the user by fouling.

  As described above, the vacuum cleaner according to the present invention is extremely useful in terms of safety.

Sectional drawing of the principal part of the vacuum cleaner which shows Embodiment 1 of this invention. Cross section of the main part of the vacuum cleaner Cross section of the main part of the vacuum cleaner Cross section of the main part of the vacuum cleaner Cross section of the main part of the vacuum cleaner Cross section of the main part of the vacuum cleaner Cross section of the main part of a conventional vacuum cleaner

1 Body 2 Fan motor 3 Dust collection chamber 4 Exhaust port 5 Filter 6 Exhaust cover 7 Spring

Claims (5)

A fan motor for sucking dust, a suction device for sucking dust, a dust collection chamber for collecting dust, and an exhaust port for discharging the exhaust from the fan motor to the outside A main body, a filter in contact with the exhaust port, for collecting dust components in the exhaust, and the filter is urged toward the exhaust port side, and when the exhaust pressure is higher than a predetermined value, the filter An electric vacuum cleaner comprising an exhaust cover having a spring movable in a direction away from the mouth, wherein the exhaust cover holds the filter and is detachable from the main body. The vacuum cleaner according to claim 1, wherein the spring shape is integrally formed from the filter. The electric vacuum cleaner according to claim 1 or 2, wherein a whistle body is provided in the vicinity of the exhaust port, and the whistle body is sounded by exhaust gas discharged from a gap when the filter is separated from the exhaust port. The electric vacuum cleaner according to any one of claims 1 to 3, wherein the main body is provided with a display switch for displaying a display object such as an LED when the filter is separated from the exhaust port. The vacuum cleaner according to any one of claims 1 to 4, wherein a safety switch for stopping the operation of the fan motor is provided in the main body when the filter is separated from the exhaust port.