JP2008061924A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric vacuum cleaner, which is operated with the optimum power without overheating an electric blower in operation as a cleaner main body is standing. <P>SOLUTION: The vacuum cleaner is provided with the cleaner body 10 including the electric blower 1 for sucking dust, a floor nozzle 16 installed at the lower part of the cleaner body 10 to be turned, an electric blower control means, unillustrated, to control the electric blower, and a state detection means 3 to detect that the cleaner body 10 is in a standing state or an inclined state for normal cleaning operation. In operation as the cleaner body 10 is standing, feed power to the electric blower 1 is reduced. When the cleaner body 10 is operated as it is standing, quantity of air sucked from the floor nozzle 16 is reduced, but since the feed power to the electric blower 1 is reduced, the electric blower 1 is prevented from overheating. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vacuum cleaner, and more particularly to a vertical vacuum cleaner.

  In the United States and the UK, vertical (upright) vacuum cleaners as shown in FIG. 9 are widely used, and various places such as a suction tool 51, an extension pipe 52, a small nozzle 53, and a dust brush 54 are used. An attachment in a form suitable for cleaning is attached to the cleaner body 50 so that it can be used easily.

  During normal cleaning of the floor surface, the handle 57 at the top of the cleaner body 50 is held, the cleaner body 50 is tilted, and the floor nozzle 56 is moved on the floor surface.

On the other hand, when the user uses one of the above attachments, as shown in FIG. 9, the vacuum cleaner main body 50 is set in a stand state, that is, a standing state, and a dust collecting chamber (not shown) for collecting dust. ) And the floor nozzle 56, the floor nozzle side of the hose 55 is removed, and an appropriate attachment is attached only to the hose 55 or to the tip of the hose 55, and cleaning is performed while the cleaner body 50 is operated. (For example, refer to Patent Document 1).
JP 2001-87172 A

  However, in the configuration of the conventional electric vacuum cleaner, when using the vacuum cleaner main body 50 in a stand state as shown in FIG. 9 in order to use one of the attachments, it is the same as the normal floor cleaning. Since the vacuum cleaner body 50 is operated, the current flowing through the electric blower (not shown) that is built in the vacuum cleaner body 50 and generates suction air does not change. In particular, the hose 55 is connected to the floor nozzle 56 in the stand state. When operated without being removed, the amount of air flowing in from the floor nozzle 56 is extremely reduced, so that long-time operation in the stand state causes the overheating of the electric blower.

  The present invention solves the above-mentioned conventional problems, and reduces the electric power supplied to the electric blower when the main body of the vacuum cleaner is used in a stand state, thereby preventing overheating of the electric blower. The purpose is to provide a machine.

  In order to solve the above-described conventional problems, a vacuum cleaner according to the present invention includes a vacuum cleaner body having an electric blower for sucking dust, and a floor rotatably attached to a lower portion of the vacuum cleaner body. A nozzle, an electric blower control means for controlling the electric blower, and a state detection means for detecting whether the cleaner body is standing or tilted for normal cleaning. When operating with the vacuum blower, the power supplied to the electric blower is reduced, and when the vacuum cleaner main body is set up, the amount of air sucked from the floor nozzle is reduced. Since the supplied power is reduced, the electric blower does not overheat.

  In addition, the electric vacuum cleaner of the present invention controls a vacuum cleaner main body with a built-in electric blower for sucking dust, a floor nozzle rotatably attached to a lower portion of the vacuum cleaner main body, and the electric blower. Electric blower control means, a hose that is detachably attached to the floor nozzle and communicates with the cleaner body and the floor nozzle, and a hose attachment detection means that detects whether the hose is attached to the floor nozzle When operating with the vacuum cleaner body in an upright state, the power supplied to the electric blower when the hose is detached from the floor nozzle is the same as that when the hose is not detached from the floor nozzle. In the case where the hose is removed from the floor nozzle and dust is directly sucked in, the cleaning performance is not deteriorated because the power supplied to the electric blower is large.

  Even if the electric vacuum cleaner of the present invention is operated in a state where the main body of the vacuum cleaner is erected in order to use attachments and the like, the electric blower does not overheat.

  A first aspect of the present invention is a vacuum cleaner body incorporating an electric blower for sucking dust, a floor nozzle rotatably attached to a lower portion of the vacuum cleaner body, and an electric blower control for controlling the electric blower And a state detection means for detecting whether the cleaner body is standing or tilted for normal cleaning, and when the cleaner body is operated while standing, the power supplied to the electric blower When the vacuum cleaner main body is operated while standing up, the amount of air sucked from the floor nozzle is reduced, but the power supplied to the electric blower is reduced, so the electric blower is overheated. Never do.

  In particular, the second aspect of the invention is such that the vacuum cleaner body of the first aspect of the invention is stood and operated, and after a certain period of time, the energization to the electric blower is stopped. Even if driving continues for a long time, it is safe.

  A third aspect of the invention is a vacuum cleaner body having a built-in electric blower for sucking dust, a floor nozzle rotatably attached to a lower portion of the vacuum cleaner body, and an electric blower control for controlling the electric blower. And a hose that is detachably attached to the floor nozzle and has one end communicating with the vacuum cleaner body and the floor nozzle, and a hose attachment detection means for detecting whether the hose is attached to the floor nozzle, When operating with the main body of the vacuum cleaner in a standing state, the power supplied to the electric blower when the hose is detached from the floor nozzle is larger than that when the hose is not detached from the floor nozzle. In the case where the hose is removed from the floor nozzle and the dust is directly sucked, the cleaning performance is not deteriorated because the power supplied to the electric blower is large.

  The fourth invention is provided with suction force setting means for setting the suction force by changing the power supplied to the electric blower of the third invention, and the suction force setting means when the hose is detached from the floor nozzle. When cleaning with one end of the hose removed from the floor nozzle, or when cleaning with an attachment attached, the user can set the suction force according to the surface to be cleaned. Good use.

  In particular, the fifth invention provides an attachment discriminating means for discriminating the type of attachment attached to the tip of the hose of the third or fourth invention, and changes the electric power supplied to the electric blower according to the type of the attachment. By doing so, it is possible to obtain a suction force according to the use of the attachment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 is an external view of the electric vacuum cleaner according to the first embodiment of the present invention, FIG. 2 is a cross-sectional view of the main part of the electric vacuum cleaner, FIG. 3 is a circuit block diagram of the electric vacuum cleaner, FIG. These are operation | movement explanatory drawings of the same vacuum cleaner.

  1 to 3, the vacuum cleaner in the present embodiment includes an electric blower 1 for sucking dust and a vacuum cleaner body 10 having a handle 17 for operation above, and a lower portion of the vacuum cleaner body 10. The floor nozzle 16 is rotatably attached to the floor nozzle 16. The vacuum cleaner main body 10 includes state detection means 3 for detecting whether the vacuum cleaner main body 10 is in a standing state (hereinafter referred to as “stand state”) or in a normal cleaning state, that is, in a tilted state, and the electric blower. The electric blower control means 2 which controls 1 is provided. Reference numeral 11 denotes a hose that communicates a dust collection chamber (not shown) in the cleaner body 10 and the floor nozzle 16, and the floor nozzle 16 side end is detachable from the floor nozzle 16.

  In the present embodiment, the state detection means 3 uses a microswitch 3a as shown in FIG. 2, and the lever 3b of the microswitch 3a is operated by a protrusion 5 formed integrally with the cleaner body 10. When the cleaner body 10 is in the stand state, as shown in FIG. 2A, the protrusion 5 does not operate the lever 3b and the microswitch 3a is in the off state. As shown in FIG. 2B, in the normal cleaning state, that is, when the cleaner body 10 is tilted backward, the projection 5 operates the lever 3b, so that the microswitch 3a is turned on.

  6 is a stand state time measuring means for inputting information from the state detecting means 3 (microswitch 3a) and measuring the time during which the cleaner body 10 is operated in the stand state; 7 is the state detecting means 3; Or the information on the stand state time measuring means 6 and the arithmetic processing means for outputting the electric current / power signal of the electric blower 1 to the electric blower control means 2, and after the cleaner body 10 is in the stand state, Until the set time (3 minutes in the present embodiment), a signal for reducing the current / power to the electric blower 1 is output, and thereafter, a signal for stopping the operation b of the electric blower 1 is output. It is configured.

  The operation and action of the electric vacuum cleaner configured as described above will be described with reference to FIG.

  In the normal cleaning state, since the contact of the micro switch 3a is in the on state, the stand state time measuring means 6 is stopped, and the arithmetic processing means 7 outputs a high current / high power signal to the electric blower control means 2. Therefore, the electric blower 1 operates with high current and high power.

  When the operation is started with the cleaner body 10 in the stand state for cleaning using an attachment such as the small nozzle 53, the contact (not shown) of the micro switch 3a is turned off, and the stand state time measuring means 6 is Start time measurement. At the same time, the arithmetic processing means 7 receives the off signal of the micro switch 3a and outputs a low current / low power signal to the electric blower control means 2, so that the electric blower 1 continues to operate at a low current / low power.

  When 3 minutes have passed since the vacuum cleaner main body 10 is in the stand state, the arithmetic processing means 7 outputs a stop signal to the electric blower control means 2 based on information from the stand state time measuring means 6. Operation stops.

  As described above, according to the present embodiment, when the cleaner main body 10 is in the stand state, the current / power of the electric blower 1 is reduced, so that the electric blower 1 can be prevented from being overheated and cleaned. Even if the stand state of the machine main body 10 continues for a long time, the operation is forcibly stopped after a certain time, so that it is safe.

(Embodiment 2)
FIG. 5 is an external perspective view of the electric vacuum cleaner according to the second embodiment of the present invention, FIG. 6 is a partial rear perspective view of the electric vacuum cleaner, and FIG. 7 is a circuit block diagram of the electric vacuum cleaner, FIG. 8 is an operation explanatory view of the electric vacuum cleaner. The same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  5 to 7, reference numeral 8 denotes a hose attachment detection means that is provided at a portion where the hose 11 of the floor nozzle 16 is connected and detects whether the floor nozzle 16 side end of the hose 11 is attached to the floor nozzle 16. In this embodiment, when the hose 11 is attached to the floor nozzle 16 using the micro switch 8a, the lever of the micro switch 8a is formed on the inner surface of the hose 11 as shown in FIG. Since the micro switch 8a is turned on because it presses 8b, when the hose 11 is removed from the floor nozzle 16, the lever 8b of the micro switch 8a becomes free and cannot be operated, so the micro switch 8a is turned off. .

  12 is a suction force that allows the user to set the suction force by changing the current / power supplied to the electric blower 1 when the vacuum cleaner body 10 is in the stand state and the hose 11 is removed from the floor nozzle 16. It is a setting means.

  Reference numeral 13 denotes attachment discriminating means for discriminating the types of attachments such as the extension pipe 14 and the small nozzle 53 attached to the tip of the hose 11, and in this embodiment, it detects whether the extension pipe 14 is attached. When the extension tube 14 is attached to the cleaner body 10 in the same manner as the operation of the hose attachment detection means 8, the micro switch 13a is provided by the extension tube 14 itself. However, when the extension tube 14 is removed from the cleaner body 10, the lever 13b of the micro switch 13a is not operated, so that the micro switch 13a is turned off. Become.

  All the information of the hose attachment detection means 8, the suction force setting means 12 and the attachment determination means 13 is input to the arithmetic processing means 7, and when the hose 11 is removed from the main body 10, the current / power to the electric blower 1 is shown. When the extension pipe 14 is removed from the main body 10, the maximum current / power signal of the electric blower 1 is output.

  The operation and action of the electric vacuum cleaner configured as described above will be described with reference to FIG.

  When the user uses the attachment such as the small nozzle 53 to perform cleaning, when the vacuum cleaner main body 10 is in the stand state and the hose 11 is removed from the floor nozzle 16, the micro switch 8a which is the hose attachment detection means 8 is used. Turns off. Then, since the current / power higher than that in the stand state is output from the arithmetic processing means 7, the electric blower 1 has medium current / medium power, and the cleaning performance in the stand state can be ensured.

  At this time, the suction force setting means 12 may allow the user to set the suction force by changing the current / power according to preference.

  Here, when the user removes the extension tube 14 from the cleaner body 10 in order to clean a place away from the ceiling or a high wall surface, the micro switch 13a as the attachment determination means 13 is turned off. The processing unit 7 outputs the highest current / power signal, and the electric blower 1 is operated at a high current / high power to compensate for the loss caused by the extension pipe 14 and to ensure the cleaning performance in the stand state. .

  In the present embodiment, the extension pipe 14 has been described as an example of the attachment to be detected. However, when an attachment with a thin tip such as a gap nozzle is used, the current / power is reduced in order to reduce the suction sound. You may do it.

  Similarly, in this case, the user may set the suction force by changing the current / power according to the preference by the suction force setting means 12.

  As described above, the vacuum cleaner according to the present invention reduces the power supplied to the electric blower when the main body of the vacuum cleaner is in a stand state. It can be applied to various vacuum cleaners.

The external view of the vacuum cleaner in the 1st Embodiment of this invention (A) Main part sectional view of the electric vacuum cleaner (state in which the vacuum cleaner body is erected), (b) Main part sectional view of the electric vacuum cleaner (state in which the vacuum cleaner body is tilted), Circuit block diagram of the vacuum cleaner Operation explanatory diagram of the vacuum cleaner External appearance perspective view of the vacuum cleaner in the 2nd Embodiment of this invention (A) Rear partial perspective view of the vacuum cleaner (with the hose attached to the floor nozzle), (b) Rear partial perspective view of the vacuum cleaner (with the hose removed from the floor nozzle) Circuit block diagram of the vacuum cleaner Operation explanatory diagram of the vacuum cleaner Rear perspective view of a conventional vacuum cleaner

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric blower 2 Electric blower control means 3 State detection means 3a Micro switch 3b Lever 5 Protrusion 6 Stand state time measurement means 7 Arithmetic processing means 8 Hose attachment detection means 8a Micro switch 8b Lever 10 Vacuum cleaner body 11 Hose 12 Suction force setting means 13 Attachment discriminating means 13a Micro switch 13b Lever 14 Extension pipe 16 Floor nozzle 17 Handle

Claims (5)

A vacuum cleaner body having an electric blower for sucking dust, a floor nozzle rotatably attached to a lower portion of the vacuum cleaner body, an electric blower control means for controlling the electric blower, and the vacuum cleaner State detection means for detecting whether the main body is standing or inclined for normal cleaning is provided, and when the vacuum cleaner main body is operated while standing, the power supplied to the electric blower is reduced. Electric vacuum cleaner. 2. The electric vacuum cleaner according to claim 1, wherein energization of the electric blower is stopped after a certain period of time when the vacuum cleaner body is set up and operated. A vacuum cleaner body incorporating an electric blower for sucking dust; a floor nozzle rotatably attached to a lower portion of the vacuum cleaner body; an electric blower control means for controlling the electric blower; A hose that is detachably attached to a floor nozzle and communicates with the vacuum cleaner body and the floor nozzle, and a hose attachment detection means for detecting whether the hose is attached to the floor nozzle are provided, and the vacuum cleaner body is erected When operating in a state, a vacuum cleaner configured such that the electric power supplied to the electric blower when the hose is detached from the floor nozzle is larger than that when the hose is not detached from the floor nozzle. The suction force setting means for setting the suction force by changing the power supplied to the electric blower is provided, and when the hose is detached from the floor nozzle, the suction force can be set by the suction force setting means. The vacuum cleaner described. The vacuum cleaner according to claim 3 or 4, wherein an attachment discriminating means for discriminating the type of attachment attached to the tip of the hose is provided, and the electric power supplied to the electric blower is changed according to the type of attachment.

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