JP2004089246A - Vertical vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vertical vacuum cleaner improved in usability by improving fa cleaning performance at the time of using an attachment. <P>SOLUTION: The vertical vacuum cleaner is provided with a motor-driven blower 2 for generating suction air, a nozzle part 4 having a suction port 7 for sucking dust, a dust collecting chamber 3 for collecting the sucked dust, and a suction passage 13 which is freely attachable and detachable to/from the nozzle part 4 and makes the suction port 7 communicates with the dust collecting chamber 3. At the time of detaching the suction passage 13 from the suction port 7, the input of the motor-driven blower 2 is varied. At the time of detaching the suction passage 13 from the nozzle part 4, mounting the attachment and performing cleaning, suction power is optimized to be matched with using conditions. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vertical vacuum cleaner provided with an attachment for cleaning gaps and corners.
[0002]
[Prior art]
Conventionally, this type of vacuum cleaner has been configured as shown in FIGS. Hereinafter, the configuration will be described.
[0003]
In FIG. 6, reference numeral 1 denotes a main body having a built-in electric blower 2 for generating a suction wind and a dust collecting chamber 3 for collecting sucked dust. Reference numeral 4 denotes a built-in rotary brush 5 and a driving motor 6, and a suction port 7 and a running port. This is a nozzle unit provided with a roller 8. An insertion portion 9 communicating with the suction port 7 is formed on a rear side surface of the nozzle portion 4. Reference numeral 10 denotes a suction passage for guiding dust from the suction port 7 to the dust collection chamber 3, and includes a connecting part 11 having one end bent in an L shape and an extendable bellows hose 13 having the other end fixed to the tubular part 12. I have. The connecting portion 11 is rotatably mounted on the side wall of the dust collection chamber 3 of the main body 1 around the axis, and the tube fitting portion 12 is removably press-fitted into the insertion portion 9 and mounted.
[0004]
A handle portion 15 is attached above the main body 1 via an extension tube 14 made of a metal pipe. The handle portion 15 has a power supply for turning on and off a power supply 16, an electric blower 2, and an electric connection between the drive motor 6. A switch 17 is provided. Further, the main body 1 is configured to be rotatable with respect to the nozzle portion 4 substantially on the center of the traveling cola 8.
[0005]
The operation of the above configuration will be described. When the power switch 16 is turned on, the electric blower 2 and the drive motor 6 rotate, so that dust on the floor can be absorbed by operating the handle 14. In order to clean the gaps and corners, the pipe fitting 12 is detached from the insertion section 9 and an attachment such as a skimmer nozzle (not shown) is attached for cleaning.
[0006]
[Problems to be solved by the invention]
In such a conventional configuration, if the input of the electric blower 2 is reduced in order to reduce the size of the main body and save energy, the suction force is reduced, and the floor cleaning performance utilizes the scraping force of the rotating brush 5. However, when cleaning the gaps and corners, it is necessary to rely only on the suction force, but the dust suction force is insufficient. Particularly, a cordless type using a secondary battery as a power supply, which has been increasing in recent years, has had a great influence.
[0007]
Further, when cleaning a curtain or the like, there is another problem that the suction force is too strong and the curtain is wound.
[0008]
An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a vertical vacuum cleaner having improved cleaning performance when using an attachment and having improved usability.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides an electric blower for generating a suction wind, a nozzle unit having a suction port for sucking dust, a dust collection chamber for collecting the sucked dust, and a suction chamber detachably attached to the nozzle unit. A suction passage communicating the mouth and the dust collection chamber is provided, and when the suction passage is removed from the suction port, the input of the electric blower is changed, and the suction passage is removed from the nozzle portion and an attachment is attached. When cleaning, the suction power can be optimized according to the conditions of use.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
The invention according to claim 1 of the present invention is an electric blower that generates a suction wind, a nozzle unit having a suction port for sucking dust, a dust collection chamber that collects sucked dust, and the nozzle unit that is detachably attached to the nozzle unit. A suction passage communicating the suction port and the dust collection chamber is provided, and when the suction passage is removed from the suction port, the input of the electric blower is changed, and the suction passage is removed from the nozzle portion and an attachment is attached. When performing cleaning, the suction force can be optimized according to the use conditions.
[0011]
The invention according to claim 2 of the present invention raises the input of the electric blower when the suction passage is removed from the nozzle portion, and the input of the electric blower when the attachment is used is used when cleaning the floor surface. This is set higher than the input so that sufficient cleaning performance can be obtained even when cleaning a gap or the like.
[0012]
The invention according to claim 3 of the present invention reduces the input of the electric blower when the suction passage is removed from the nozzle portion, and the input of the electric blower when the attachment is used is used when cleaning the floor surface. When cleaning the curtain or the like by setting the input lower than the input, it is possible to prevent the curtain from winding around due to too strong suction force.
[0013]
The invention according to claim 4 of the present invention includes a rotary brush driven by a drive motor in an intake port, and input switching means for switching an input of an electric blower, and the input switching means supplies an electric blower and a drive motor respectively. It is configured to be connected in series to a power supply, so that when the suction passage is removed from the suction port, only the connection between the drive motor and the supply power supply is cut off. The drive motor can be stopped at the same time with a simple configuration, and energy saving and safety can be ensured at low cost.
[0014]
The invention according to claim 5 of the present invention includes a connecting portion formed at one end of the suction passage, an insertion portion communicating with the suction port and provided on the outer periphery of the nozzle portion, and the connecting portion is detachably attached to the insertion portion. And a switch body for switching the connection to the input switching means in conjunction with the attachment / detachment of the connection portion, so that the suction passage can be switched only by the attachment / detachment operation of the connection portion, and the electric blower can be operated by the same operation. Can be switched, so that the usability is good.
[0015]
The invention according to claim 6 of the present invention uses a secondary battery as a power supply. By realizing an energy-saving configuration, the load on the battery can be reduced, so that the main body can be reduced in size and weight. A cordless vacuum cleaner that is easy to use can be realized.
[0016]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0017]
(Example 1)
A first embodiment of the present invention will be described with reference to FIGS. The same parts as those in the above-described conventional example are denoted by the same reference numerals, and description thereof will be omitted.
[0018]
The cleaner body 1 includes an electric blower 2 for generating a suction force and a dust collecting chamber 3. A nozzle 4 has a built-in rotary brush 5 below the cleaner body 1. An insertion portion 9 communicating with the suction port 7 is formed on the side surface. The insertion portion 9 is fitted with a tube recess 12 of a suction passage 10 in a detachable manner. At the tip of the tubular portion 12, a projection 20 is integrally formed through a hole 18 formed in the nozzle portion 4 and in contact with a switch body 19 disposed above the insertion portion 9. As shown in FIG. 3, the electric blower 2 and the drive motor 6 are connected in parallel to a power supply 16 via a power switch 17, and only the electric blower 2 is connected to the input switching means 21 composed of a resistor R by the switch. The electrical connection can be switched by the body 19.
[0019]
The operation of the above configuration will be described. When cleaning the floor surface, when the power switch 17 is turned on, the electric blower 2 and the drive motor 6 are electrically connected to the power supply 16 respectively, and the suction force from the suction port 7 and the scraping force of the rotating brush 5 are used. The dust is collected and collected in the dust collection chamber 3 through the suction passage 10.
[0020]
At this time, the electric blower 2 is electrically connected to the power supply 16 via the input switching means 21 by a contact configuration of the switch body 19 shown by a solid line in FIG. That is, since the voltage of the power supply 16 is dropped by the resistor R and is applied to the electric blower 2, the input of the electric blower 2 is reduced as compared with a case where the input is directly connected to the power supply 16. In the case of the present embodiment, the electric blower 2 having a rated input of 100 V and 100 W is electrically connected via a resistor R of 10 Ω, and is operated at a low input of about 81.8 W. Even at this low input, the dust-absorbing performance can be sufficiently ensured because the rotary brush 5 has a scraping force.
[0021]
The suction passage 10 made of a flexible hose is detachably fitted to the insertion portion 9 by press-fitting the tubular portion 12 to the insertion portion 9. A corner or gap can be cleaned by attaching an attachment such as a gap nozzle. At this time, the protruding portion 20 of the tubular portion 12 is separated from the switch body 19 of the nozzle portion 4, the contact is switched to the position shown by the dashed line in FIG. , 100V are applied. That is, the input of the electric blower 2 becomes 100 W, and a high suction force is generated. As a result, a sufficient dust-absorbing force can be obtained only by the suction force without the scraping force of the rotating brush 5, and the gaps and corners can be sufficiently cleaned.
[0022]
Further, the input can be switched at the same time only by the attachment / detachment operation, so that the usability is good.
[0023]
The power consumption in floor cleaning, which is overwhelmingly long, can be reduced to a necessary minimum, and energy can be saved.
[0024]
In the above embodiment, the power supply 16 is 100 V AC, which is a general household power supply. However, as shown by a one-point line in FIG. 3, a DC power supply 22 composed of a secondary battery is built in the main body 1. In this case, in particular, the energy saving effect of the above embodiment leads to a reduction in size and weight of the main body, so that the usability of the cordless vacuum cleaner is further improved. In the present embodiment, the input of the electric blower 2 is increased when the tubular portion 12 is removed from the insertion portion 9, but the suction force may be reduced when cleaning the curtain or the like even if the input is decreased. Is too strong to prevent the curtain from winding up.
[0025]
(Example 2)
A second embodiment of the present invention will be described with reference to FIG. Note that the same parts as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted.
[0026]
The electric blower 2 and the drive motor 6 are electrically connected in series to a power supply 16, respectively, and only the drive motor 6 is connected to and cut off from the power supply 16 via a switch 23. The switch body 23 has a configuration in which the contacts are switched by the protrusions 20 of the tubular portion 12 in conjunction with the attachment and detachment of the tubular portion 12 to and from the insertion portion 9 as in the above-described embodiment. Other configurations are the same as those in the first embodiment.
[0027]
The operation of the above configuration will be described. At the time of floor cleaning, the contact point of the switch body 23 is in the position shown by the solid line in FIG. 4, and the electric blower 2 and the drive motor 6 are connected in series to the power supply 16 respectively, and the minimum to obtain a sufficient dust absorbing force is obtained. Each input is set. That is, in this embodiment, the electric blower 2 is set to 80 W, and the drive motor 6 is set to 20 W. As the tubular portion 12 is removed from the insertion portion 9 for cleaning the attachment, the contact point of the switch body 23 is switched to the position shown by the broken line in FIG. At this time, the drive motor 6 is disconnected from the power supply 16 and stopped, and the electric blower 2 is operated at a high input of 125 W, so that a sufficient suction force can provide a sufficient dust-absorbing force even without a scraping force of the rotating brush 5. Things.
[0028]
In addition, since the unnecessary rotating brush 5 can be stopped while the attachment is in use, safety can be improved.
[0029]
(Example 3)
A third embodiment of the present invention will be described with reference to FIG. Note that the same parts as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted.
[0030]
The electric blower 2 and the drive motor 6 are electrically connected in parallel to a power supply 16, respectively, and only the drive motor 6 is connected to and cut off from the power supply 16 via a switch body 23. The switch body 23 has a configuration in which the contacts are switched by the protrusions 20 of the tubular portion 12 in conjunction with the attachment and detachment of the tubular portion 12 to and from the insertion portion 9 as in the above-described embodiment. Other configurations are the same as those in the first embodiment.
[0031]
The operation of the above configuration will be described. At the time of floor cleaning, the contact point of the switch body 23 is at the position shown by the solid line in FIG. 4, and the electric blower 2 and the drive motor 6 are connected in parallel to the power supply 16 respectively, so that the minimum dust can be obtained. Each input is set. That is, in this embodiment, the electric blower 2 is set to 80 W, and the drive motor 6 is set to 20 W. In order to clean the attachment, the contact point of the switch body 23 is switched to the position shown by the dashed line in FIG. At this time, the drive motor 6 is disconnected from the power supply 16 and stopped, and the electric blower 2 is operated with the input of 80 W.
[0032]
That is, the unnecessary rotating brush 5 can be stopped only by the operation of attaching and detaching the attachment, so that the safety can be easily and surely improved.
[0033]
【The invention's effect】
ADVANTAGE OF THE INVENTION As mentioned above, according to this invention, the cleaning performance at the time of using an attachment can be improved and the vertical vacuum cleaner which improved usability can be provided.
[Brief description of the drawings]
FIG. 1 is a vertical sectional view of a vacuum cleaner showing a first embodiment of the present invention; FIG. 2 is a perspective view of the same vacuum cleaner; FIG. 3 is an electric circuit diagram of the same vacuum cleaner; FIG. FIG. 5 is an electric circuit diagram of a vacuum cleaner showing a second embodiment of the present invention. FIG. 5 is an electric circuit diagram of a vacuum cleaner showing a third embodiment of the present invention. FIG. 6 is a perspective view showing a conventional vacuum cleaner. FIG. 7 is an electric circuit diagram of the vacuum cleaner.
DESCRIPTION OF SYMBOLS 1 Main body 2 Electric blower 3 Dust collection chamber 4 Nozzle part 5 Rotary brush 6 Drive motor 7 Suction port 10 Suction passage 21 Input switching means

Claims (6)

A nozzle unit having an electric blower for generating a suction wind and a suction port for sucking dust, a dust collection chamber for collecting the sucked dust, and a suction passage detachably connected to the nozzle unit and communicating the suction port and the dust collection chamber. A vertical vacuum cleaner that changes input of the electric blower when the suction passage is removed from the suction port. The vertical vacuum cleaner according to claim 1, wherein the input of the electric blower is increased when the suction passage is removed from the nozzle portion. The vertical vacuum cleaner according to claim 1, wherein the input of the electric blower is reduced when the suction passage is removed from the nozzle portion. A rotating brush driven by a drive motor in the suction port, and input switching means for switching an input of the electric blower, wherein the input switching means is configured by connecting the electric blower and the drive motor in series with a power supply, respectively, The vertical vacuum cleaner according to any one of claims 1 to 3, wherein when the is removed from the suction port, only the connection between the drive motor and the power supply is cut off. A connection portion formed at one end of the suction passage, an insertion portion communicating with the suction port and provided on the outer periphery of the nozzle portion is provided, and the connection portion is detachably attached to the insertion portion, and interlocked with the attachment / detachment of the connection portion. The vertical vacuum cleaner according to any one of claims 1 to 4, further comprising a switch for switching connection to the input switching unit. The vertical vacuum cleaner according to any one of claims 1 to 5, wherein a secondary battery is used as a power supply.

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