JP2003135328A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner which can be employed with simply changing a form according to a use and in which convenience such as good storage and being handy can be improved. SOLUTION: A vacuum cleaner 1 contains a motor fan 2 and has a vacuum cleaner body 4 having a first dust collecting chamber 3 for retaining sucked dust, a flexible hose 5 which communicates with the first dust collecting chamber 3 and one end of which is connected to the vacuum cleaner body 4, a suction pipe 6 one end of which is connected to the other end of the hose 5, and a floor brush 7 which is connected to the other end of the suction pipe 6, the hose 5 and the suction pipe 6 are removably constituted, and the floor brush 7 has a second dust collecting chamber, an opening for discarding to the outside dust collected in the second dust collecting chamber, a lid for covering the opening, and a rotating brush for collecting dust from a face to be cleaned.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention can be used as an electric vacuum cleaner, particularly as a canister type electric vacuum cleaner, and removes the suction pipe and the floor brush from the vacuum cleaner main body to clean the vacuum cleaner main body. A possible improvement of the vacuum cleaner.

[0002]

2. Description of the Related Art There are various types of electric vacuum cleaners, such as a canister type, an upright type, and a handy type, and each type has its advantages and disadvantages. Since the canister type has a relatively large output and a large amount of dust that can be stored, it can be easily cleaned even with a large cleaning area, but on the other hand, the weight of the main body is large and the main body is pulled around for cleaning, which causes obstacles. It has a drawback that it is difficult to handle in a place where there are many things, the vacuum cleaner is relatively large, and it is not suitable for cleaning a small amount of dirt.

In addition, the upright type vacuum cleaner can easily perform cleaning in a place where there are many obstacles, which is a drawback of the canister type, but the weight of the main body adds to the user and the operation labor increases. there were. Further, the handy type is suitable for easy cleaning, but has a relatively weak output and is not suitable for use in a large cleaning area.

In order to overcome the above-mentioned drawbacks depending on the type of vacuum cleaner, the conventional method is disclosed in JP-A-61-2808.
There have been techniques such as those described in JP-A No. 17, JP-A-62-211032, and JP-A No. 1-310622.

FIG. 21 is an explanatory view for explaining the technique disclosed in Japanese Patent Laid-Open No. 61-280817.
The electric vacuum cleaner 500 shown in the figure comprises an electric vacuum cleaner body 501 having an electric blower and the like built therein, a hose 502, a dust collecting case 503 having a dust collecting bag, and a pipe 504 having a floor brush or the like connected to its tip. Therefore, the handle portion 505 is joined to the rear surface of the dust collecting case, and the hose 502 is connected to the connection hole 506 of the handle portion, so that it can be used as a canister-type vacuum cleaner. Then, the hose 502 and the handle portion 505 are separated according to the application, and a rechargeable driving body 509 including an electric blower 508 that can be driven by a rechargeable battery 507 is connected to the rear surface of the dust collection case 503 to be used as an upright type cleaner. It is possible to do.

[0006]

However, with such a structure, the handle portion 505 and the rechargeable driving body 509 must be replaced depending on the place to be cleaned, and this replacement work is complicated and at the same time. There is a drawback that the operability deteriorates because of the dust collecting part. In addition, when used as an upright type, since heavy items such as an electric blower are concentrated in the hand part, the center of gravity becomes high, and the weight on the user becomes heavier and the operation labor becomes very large. Further, when used as a canister type, the rechargeable driving body 509 must be stored separately, which causes a problem of poor storability.

Further, FIG. 22 shows Japanese Patent Laid-Open No. 62-21103.
An explanatory diagram for explaining the technique described in Japanese Patent Publication No. 2 will be described. In the figure, the same components as those of FIG. 21 are designated by the same reference numerals and the description thereof will be omitted. The electric vacuum cleaner 510 shown in FIG. 22 can be driven by an electric vacuum cleaner main body 501 having a built-in electric blower or the like, a hose 502, a small dust collecting case 511, and a rechargeable battery 507 provided on the rear surface of the small dust collecting case 511. Rechargeable driver 50 with built-in electric blower 508
9, a pipe 504 to which a floor brush or the like is connected at the tip, and a hose 502 is connected to a connection hole 506 provided in the lower part of the small dust collection case 511 to be used as a canister-type vacuum cleaner Is something that can be done. Then, by disconnecting the hose 502 and closing the connection hole 506 with the valve 512 according to the application, it is possible to use as an upright type cleaner.

However, with such a structure, there is a problem that the rechargeable battery 507 and the rechargeable driving body 509 having the electric blower 508 built therein are always at hand, and thus the weight is heavy and the operation is difficult. Further, in order to solve this, it is also disclosed that the handle portion and the rechargeable driving body 509 are replaced, but in such a configuration, this replacement work is complicated as in the conventional art, and when used as a canister type. The rechargeable driving body 509 has to be stored separately, which causes a problem of poor storability.

Further, in FIG. 23, Japanese Patent Laid-Open No. 1-3062 is disclosed.
An explanatory diagram for explaining the technique described in Japanese Patent Publication No. 2 will be described. In the figure, the same components as those of FIG. 21 are designated by the same reference numerals and the description thereof will be omitted. The electric vacuum cleaner 520 shown in FIG. 23A includes an electric blower main body 501 having an electric blower, a first dust collecting portion 528, and the like, and a hose 50.
2. Pipe 50 with a floor brush 521 connected to the tip
It is composed of 4 and can be used as a canister type vacuum cleaner.

A handle portion 522 is provided at the end of the pipe 504 on the hose 502 connection side, and a shutter portion 523 is provided at a part of the pipe 504.
As shown in FIG. 3 (b), the hose 502 is separated according to the application, the handle 522 installation side end is closed with a lid 524, and the shutter 523 is driven by the second dust collecting unit 525 and a rechargeable battery. By installing a rechargeable auxiliary vacuum cleaner 527 equipped with an electric blower 526, it can be used as an upright type vacuum cleaner.

When used as an upright type vacuum cleaner, as shown in FIG. 23, the vacuum cleaner body 5 is used.
01 upright and connect the hose 502 to the floor brush 5
By driving the vacuum cleaner main body 501 so as to coincide with the intake port of No. 21, the second dust collection of the rechargeable auxiliary vacuum cleaner 527 is performed in the first dust collection unit 528 provided in the vacuum cleaner main body 501. The dust stored in the portion 525 moves.

However, with such a configuration, the pipe 5
Since the rechargeable auxiliary vacuum cleaner 527 is provided in the middle of 04, the shutter part 523 must be formed on the pipe 504, and the shutter part is used when the vacuum cleaner main body 501 is connected and used as a canister type vacuum cleaner. 52
There is a risk that the dust sucked into 3 will get caught. In addition, air leakage may occur, and the degree of vacuum may not increase and performance may decline.

Further, since the auxiliary vacuum cleaner 527 is provided, the weight becomes heavy and the operability is deteriorated, and an electric blower having an output for pulling dust up to the inside of the pipe must be provided, and the number of parts such as the shutter portion 523 is increased. However, there are problems such as cost increase.

Considering the operability of the user, when the handle 522 is provided with a drive switch for the electric vacuum cleaner body 501, the electric blower provided inside the electric vacuum cleaner body 501 is controlled. When the auxiliary vacuum cleaner 527 is used as an upright type, the auxiliary vacuum cleaner 527 can be driven by a switch with the handle 522 so that the auxiliary vacuum cleaner 527 is powered by a rechargeable battery (secondary battery).
Since it is driven by a direct current, a voltage drop may occur when the distance between the rechargeable battery and the switch becomes long. In order to prevent this, if the lead wire to be connected is made thick, the pipe becomes thick and the device becomes large. There is also a method of increasing the voltage (capacity) of the rechargeable battery in advance, but this causes a problem that the weight becomes heavy and the cost increases. Therefore, it is difficult to control the electric blower 526 provided in the connected auxiliary vacuum cleaner 527 with the switch.

Further, as shown in FIG. 23 (c), the floor nozzle 521 covers the suction port of the vacuum cleaner main body 501 so that the dust in the dust collecting section 525 can be transferred to the dust collecting section of the vacuum cleaner main body 501. If there is, the hose 50 of the cleaner body 501
The vicinity of the intake port, which is the connecting portion with 2, and the bottom surface shape of the floor nozzle 521 are firmly joined together, so that there is a design or functional restriction. Above all, when switching from the canister type to the upright type, and conversely from the upright type to the canister type, it is necessary to install and remove the auxiliary vacuum cleaner 527, and this replacement work is complicated, and as a canister type Auxiliary vacuum cleaner 52 when using
7 had to be stored separately, and the problem of poor storability had not been solved by the present technology.

The present invention has been made in view of the above-mentioned problems, and can be used by changing the form easily according to the application, has good storability, and can improve convenience such as convenience. The purpose is to provide a vacuum cleaner.

[0017]

In order to achieve the above object, an electric vacuum cleaner according to the present invention has a built-in electric blower and has a first dust collecting chamber for storing sucked dust. A flexible hose communicating with the first dust collecting chamber and having one end connected to the electric vacuum cleaner body; a suction pipe having one end connected to the other end of the hose; and a suction pipe of the suction pipe. The hose and the suction pipe are detachably configured to include a floor brush connected to the other end, and the floor brush is provided with a second dust collecting chamber and dust collected in the second dust collecting chamber. It is characterized by having an opening for discarding to the outside, a lid for covering the opening, and a rotating brush for collecting dust from the surface to be cleaned. Further, in the electric vacuum cleaner according to the present invention, the floor brush is provided with an electric motor for driving the rotary brush and a storage battery for driving the electric motor, and the pipe is provided with the electric motor for driving the rotary brush. The operating unit is provided with a switch that can be turned on and off.

Further, in the electric vacuum cleaner according to the present invention, the rotary brush provided on the floor brush has a substantially cylindrical shape, and the second dust collecting chamber provided on the floor brush has at least the rotary brush. Is 60% or more of the length in the axial direction of the rotating brush, or 60% or more of the length in the axial direction of the rotating brush that introduces dust into the second dust collecting chamber. It has a dust introduction part formed of a length. The vacuum cleaner according to the present invention has a trigger circuit in an electric circuit for driving the rotary brush. The electric vacuum cleaner according to the present invention has a constant current circuit as an electric circuit for driving the rotary brush.

In the electric vacuum cleaner of the present invention, the electric blower operates for a predetermined time when the hose and the suction pipe are connected. In the vacuum cleaner according to the present invention, the amount of dust stored in the first dust collecting chamber of the vacuum cleaner body, the degree of vacuum in the first dust collecting chamber, the operating current value of the electric blower, or the suction pipe. A detector for detecting the amount of dust by measuring one or more of the amount of dust passing through the suction path such as a hose or a hose is provided, and the hose and the suction pipe are based on the detection result of the detector. Is connected to the electric blower, a control device for varying the operating time of the electric blower is provided.

Further, the electric vacuum cleaner according to the present invention has a built-in electric blower and has an electric vacuum cleaner body having a first dust collecting chamber for storing sucked dust, and communicates with the first dust collecting chamber. A flexible hose having one end connected to the vacuum cleaner body, a suction pipe having one end connected to the other end of the hose, and a floor brush connected to the other end of the suction pipe.
The hose and the suction pipe are detachably configured, and the floor brush has a second dust collecting chamber and an opening for discarding dust collected in the second dust collecting chamber to the outside. ,
A lid that covers the opening, a cleaning unit that collects dust from a surface to be cleaned, and a storage battery that drives the cleaning unit, and a charging circuit that charges the rechargeable battery includes the electric vacuum cleaner body. It is characterized by being built in. Further, in the electric vacuum cleaner of the present invention, a dust amount display device that displays the dust amount based on the detection result of the detection device that detects the dust amount stored in the first dust collection chamber in the cleaner body. Is provided.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. Hereinafter, the present invention will be described in detail using an embodiment of the present invention. 1 to 5 are views for explaining a configuration of an electric vacuum cleaner according to an embodiment of the present invention, and FIG. 6 is a view for explaining a usage state of the electric vacuum cleaner of the present invention. Hereinafter, the present embodiment will be described with reference to these drawings.

FIG. 1 is a schematic view of the configuration of an electric vacuum cleaner according to the present invention. As shown in the figure, an electric vacuum cleaner 1 according to an embodiment of the present invention has an electric blower 2 built therein and sucked dust. Vacuum cleaner body 4 having a first dust collecting chamber 3 for storing
A flexible hose 5 that communicates with the first dust collecting chamber 3 and has one end connected to the electric vacuum cleaner body 4, and a suction pipe 6 that has one end connected to the other end of the hose. The floor brush 7 connected to the other end of the suction pipe.

In this embodiment, a cord reel (not shown) around which a power cord for supplying electric power to the electric blower 2 is wound inside the electric vacuum cleaner body 4 and a circuit device for controlling the electric blower 2. (Not shown),
A paper pack (not shown) for filtering dust is housed in the first dust collection chamber 3 for storing dust in the front of the interior of the electric vacuum cleaner body 4. The present invention can also be applied to an electric vacuum cleaner equipped with a cyclone separation device. There is a main body insertion tool 8 at the tip of the hose 5, and the first dust collection chamber 3 and the hose 5 are communicated with each other by inserting the main body insertion tool 8 into the insertion port of the electric vacuum cleaner main body 4.

The suction pipe 6 is composed of a pipe 6a and a pipe 6
b and a handle pipe 6c, the pipe 6b
Is detachably connected to one end of the pipe 6a and the other end of the pipe 6b is detachably connected to one end of the handle pipe 6c. The other end of the pipe 6a is fitted to the floor brush 7, and the other end of the handle pipe 6c is detachably attached to the hose 5 at the connecting portion 9.

FIG. 2 is a side sectional view showing the structure of the connecting portion 9 between the suction pipe 6 and the hose 5 of the present invention. As shown in the figure, in the connecting portion 9 between the suction pipe 6 and the hose 5, a connecting portion 11 is formed at the other end of the hose 5 and a hook 12 is provided inside. Further, the grip portion 6 is provided on the handle pipe 6c.
And a fixing portion 13 that engages with the hook of the connecting portion 11 at the other end
Is provided. When the hook 12 of the connecting portion 11 is engaged with the fixing portion 13, the hose 5 and the suction pipe 6 are connected, and when the hook 12 of the connecting portion 11 is removed from the fixing portion 13, the hose 5 as shown in FIGS. And suction pipe 6
Is configured to be detachably engageable so as to be separated.

FIG. 3 is a partial cross-sectional top view showing the structure of the connecting portion 9 between the suction pipe 6 and the hose 5 of the present invention. As shown in the figure, a switch 14 for controlling the main body 4 of the electric vacuum cleaner is provided at the front of the grip portion 10. In the connection between the connecting portion 11 and the fixing portion 13 as described above, the bellows portion 15 of the hose 5 is provided with a wiring electrically connected to the cleaner body 4, and the wiring is provided inside the connecting portion 11 with a connect pin. 2 of 16a and 16b
Is connected with the individual. Further, the fixed portion 13 has a terminal 17a,
Two terminals 17b are provided, and lead wires 18a and 18b are connected to the terminals 17a and 17b, respectively, and are connected to the switch 14. When the connection portion 11 and the fixed portion 13 are connected, the connection pin 16a,
16b and the terminals 17a and 17b are in contact with each other, and the electric vacuum cleaner body 4 is electrically connected so as to be controllable by the switch 14.

FIG. 4 is a side sectional view of the floor brush according to the embodiment of the present invention, and FIG. 5 is a bottom sectional view of the floor brush according to the embodiment of the present invention. As shown in FIG.
The floor brush 7 in the present embodiment includes a floor sliding portion 19 and an elbow 20, and the elbow 20 is a pipe 6a.
The other end is detachably fitted.

In front of the floor sliding portion 19, there is a suction port 21 having an opening toward the floor which is the surface to be cleaned, and the suction port 21 communicates with the elbow 20. Further, a rotating brush 22 is installed inside the floor sliding portion 19. The rotating brush 22 has a cylindrical shape as shown in FIG. 5, and has a clutch 23 at one end thereof that allows the rotating brush 22 to rotate only in one direction (for example, only in the traveling direction). It is connected to the pinion 26 of the drive wheel 25. As a result, even if the floor sliding portion 19 slides on the surface to be cleaned in the arrow a direction or the b direction shown in FIG. 4, the drive wheel 25 smoothly rotates due to the sliding, and the rotary brush 22 It rotates only in one direction, for example, the arrow c direction shown in FIG.

A second dust collecting chamber 27 is provided inside the floor sliding portion 19, and dust collected in the second dust collecting chamber at the bottom of the second dust collecting chamber 27 is discarded to the outside. Opening 2 for
8 are provided. The second dust collecting chamber 27 and the elbow 20 are in smooth communication with each other. In addition, the opening 2
A lid 29 is locked to 8 to cover the opening. Lid 29
There is no particular limitation on the method of locking the above-mentioned floor sliding part 19 with screws, fitting, and fixing with a lever, but it is fixed so that the vacuum degree is not lowered when using the vacuum cleaner. Are required. In this embodiment,
The lid 29 is firmly fixed by screwing on the floor sliding member 19
It is fixed to.

In the vacuum cleaner 1 according to the embodiment of the present invention thus configured, as shown in FIG. 6A, the user 30 connects the power cord of the vacuum cleaner 1 to an outlet or the like. Can be used as a canister type electric vacuum cleaner, and powerful cleaning can be performed by the electric blower 2 provided inside the electric vacuum cleaner.

When it is desired to perform a simple cleaning of the surface to be cleaned, the hose 5 of the electric vacuum cleaner 1 and the suction pipe 6 are disconnected at the connecting portion 9 as shown in FIG. 6B.
As shown in FIG. 6C, the grip portion 10 of the suction pipe 6
And sliding the floor brush 7 on the surface to be cleaned causes the rotary brush 22 in the suction port 21 in front of the floor brush 7 to drive the drive wheel 2 through the clutch 23 and the timing belt 24.
Since the drive wheel 25 rotates in the traveling direction because it is connected to the vehicle 5, the dust can be scraped up by rotating in the direction of arrow c shown in FIG. 4 and collected in the second dust collecting chamber 27 at the rear.

When the drive wheel 25 rotates in the reverse direction, the clutch 23 operates and the rotary brush 22 does not rotate. Therefore, since the rotary brush 22 does not rotate in the direction opposite to the arrow c direction, dust is not scraped up in front of the floor brush.

With such a configuration, the rotary brush 22 provided on the floor brush 7 rotates, scrapes off the dust on the surface to be cleaned, and collects it in the second dust collecting chamber 27 inside the floor brush 7. The surface to be cleaned can be cleaned.

When the dust collects in the second dust collecting chamber 27, the screw (not shown) for fixing the lid 29 at the bottom can be removed and the dust can be thrown into a trash can or the like. Alternatively, since the second dust collecting chamber 27 is in smooth communication with the elbow 20, the switch 14 for controlling the vacuum cleaner body 4 by connecting the hose 5 and the suction pipe 6 again is turned on.
Alternatively, the electric blower 2 can be operated to transfer the dust to the first dust collecting chamber 3 of the electric vacuum cleaner body 4.

As described above, the characteristic feature of the present invention is that the floor brush 7 has an opening for discarding the second dust collecting chamber 27 and the dust collected in the second dust collecting chamber 27 to the outside. Since the structure includes the part 28, the lid 29 that covers the opening, and the rotating brush 22 for collecting dust from the surface to be cleaned, it can be used as a normal electric vacuum cleaner. By providing the second dust collecting chamber 27 and the rotating brush 22, dust can be collected without a suction fan, so that cleaning can be performed only by the floor brush 7 and the suction pipe 6. Therefore, it is possible to perform a simple cleaning without pulling the electric vacuum cleaner main body 4. At that time, since the second dust collecting chamber 27 is provided not on the grip portion 10 but on the floor brush 7, the center of gravity position By lowering the weight, the weight in the vicinity of the grip portion 10 becomes lighter, and the operation labor can be reduced.

Further, even if dust is collected in the second dust collecting chamber, it is possible to dispose of the dust by providing the lid, and by operating the electric blower 2 of the vacuum cleaner body 4, the inside of the vacuum cleaner body 4 can be operated. The dust collected in the second dust collecting chamber 27 can be transferred to the dust collecting bag.

Embodiment 2. Hereinafter, the second embodiment of the present invention will be described in detail. In the description of this embodiment, the same components as those in the first embodiment will be designated by the same reference numerals and the description thereof will be omitted.

The vacuum cleaner 1 of the present invention according to the present embodiment
1 is almost the same as that of the first embodiment.
As shown in FIG. 4, an electric cleaner body 4 having a first dust collecting chamber 3 that houses the electric blower 2 and stores the sucked dust,
A flexible hose 5 which communicates with the first dust collecting chamber 3 and has one end connected to the electric vacuum cleaner body 4, a suction pipe 6 which has one end connected to the other end of the hose, and the suction And a floor brush 7 connected to the other end of the pipe.

In the present embodiment, the vacuum cleaner body 4
At the rear of the inside of the electric blower, a cord reel (not shown) for winding a power cord for supplying electric power to the electric blower 2 and a circuit device (not shown) for controlling the electric blower 2 are provided. A paper pack (not shown) for filtering dust is housed in the first dust collecting chamber 3 for storing dust in front of the inside of the cleaner body 4. The present invention can also be applied to an electric vacuum cleaner equipped with a cyclone separation device. There is a main body insertion tool 8 at the tip of the hose 5, and the first dust collection chamber 3 and the hose 5 are communicated with each other by inserting the main body insertion tool 8 into the insertion port of the electric vacuum cleaner main body 4.

The suction pipe 6 is composed of a pipe 6a, a pipe 6b and a handle pipe 6c. One end of the pipe 6b is removable from one end of the pipe 6a and the other end of the pipe 6b is removable from one end of the handle pipe 6c. It is connected to the. The other end of the pipe 6a is fitted to the floor brush 7, and the other end of the handle pipe 6c is detachably attached to the hose 5 at the connecting portion 9.

FIG. 7 is a side sectional view showing the structure of the connecting portion 9 between the suction pipe 6 and the hose 5 of the present invention. As shown in the figure, at the connecting portion 9 between the suction pipe 6 and the hose 5, a connecting portion 11 is formed at the other end of the hose 5 and a hook 12 is provided inside. Further, the grip pipe 6c has a gripping portion 1
0 and the fixed part 1 engaging with the hook of the connecting part 11 at the other end
3 is provided. When the hook 12 of the connecting portion 11 is engaged with the fixing portion 13, the hose 5 and the suction pipe 6 are connected, and when the hook 12 of the connecting portion 11 is removed from the fixing portion 13, the hose 5 and the suction pipe 6 are detached from each other. It is configured so that it can be freely engaged.

FIG. 8 is a partial top sectional view showing the structure of the connecting portion 9 between the suction pipe 6 and the hose 5 of the present invention. As shown in the figure, a switch 14 for controlling the vacuum cleaner body 4 is provided at the front of the grip portion 10, and a drive switch 31 for driving a rotary brush 22 of the floor brush 7 described later is provided at the front thereof. . In the connection between the connecting portion 11 and the fixing portion 13 as described above, the bellows portion 15 of the hose 5 is provided with wiring for electrically connecting to the cleaner body 4. FIG. 9 shows an enlarged view of the wiring portion. As shown in FIG. 9, the wiring is connected to four connecting pins 16a, 16b, 16c and 16d inside the connecting portion 11. Further, the fixed portion 13 has terminals 17a, 17b, 1
7c and 17d are provided, and the terminals 17a and 17d are provided.
b, 17c and 17d have lead wires 18a and 18d, respectively.
b, 18c, 18d are connected, and the lead wire 1
8a to 18d are connected to a substrate 32 for the switch 14 and the drive switch 31 shown in FIG. When the connecting portion 11 and the fixed portion 13 are connected, the connecting pins 16a, 16b, 16c, 16d and the terminal 17 are connected.
a, 17b, 17c and 17d are in contact with each other, and the electric vacuum cleaner body 4 is electrically connected so as to be controllable by the switch 14. Further, as shown in FIG. 7, the suction pipe 6 is provided with a wiring storage passage 33, and from the substrate 32, three lead wires 34 are provided in the wiring storage passage of the suction pipe 6.
Is provided, and three pipe-side terminals 35 for connecting to the lead wires 34 are provided at the tip of the handle pipe 6c of the suction pipe 6.

The wiring from the hose bellows portion 15 shown in FIGS. 8 and 9, four connecting pins 16a to 16d connected to the wiring, and the terminal 17 of the grip portion 10 are provided.
4 a to d and a lead wire 18a connected to the terminal
In the present embodiment, the number of connections is four as shown in FIG. 2D, but the inner two are the rotating brush power supply line and the storage battery charging line, and the remaining two are the control wires of the vacuum cleaner body 10. .

FIG. 10 is a side sectional view of a floor brush according to one embodiment of the present invention, FIG. 11 is a bottom view of the floor brush according to one embodiment of the present invention, and FIG. 12 is wiring of the floor brush according to this embodiment. Write a schematic diagram.

As shown in FIGS. 10 and 11, the floor brush 7 according to this embodiment has a floor sliding portion 19 and an elbow 20.
The elbow 20 is detachably fitted to the other end of the pipe 6a.

In front of the floor sliding portion 19, there is a suction port 21 having an opening toward the floor, which is the surface to be cleaned, and the suction port 21 communicates with the elbow 20. Further, a rotating brush 22 is installed inside the floor sliding portion 19. As shown in FIG. 11, the rotary brush 22 has a cylindrical shape, a pinion 26 is provided at one end thereof, and is connected to a pinion 37 of an electric motor 36 by a timing belt 24.

A second dust collecting chamber 27 is provided inside the floor sliding portion 19, and dust collected in the second dust collecting chamber at the bottom of the second dust collecting chamber 27 is discarded to the outside. Opening 2 for
8 are provided. The second dust collecting chamber 27 and the elbow 20 are in smooth communication with each other. In addition, the opening 2
A lid 29 is locked to 8 to cover the opening. Lid 29
There is no particular limitation on the method of locking the floor sliding portion 19 with screws, fitting, fixing with a lever, etc., but it is fixed so as not to lower the vacuum level when using the vacuum cleaner. Need to be present. In this embodiment, the lid 29 is firmly fixed to the floor sliding member 19 by screwing.

Further, as shown in FIG. 12, the storage battery 38 of the power source of the electric motor 36 and the brush control board 39 are provided on the floor sliding member 19.
It is arranged above the internal suction port 21. Storage battery 38
Is connected to the brush control board 39 by a connector or the like so that it can be easily replaced when it reaches the end of its life. The electric wire 4 for supplying power to the electric motor 36 is provided in the elbow 20.
0a, 40b, 40c and connect pins 41a, 41b, 41c for connection with the lead wires in the suction pipe 6 are provided.

Pipe 6 constituting the suction pipe 6
a and 6b are the handle pipes 6c described in FIGS.
Of the three pipe-side terminals 35 are electrically connected to each other, and the other end of the pipe 6a is electrically connected to the connecting pins 41a to 41c of the floor brush 7 to be fitted to the floor brush 7. It is configured.

The electric vacuum cleaner 1 which is one embodiment of the present invention having the above-described structure, as shown in FIG.
The user 30 can connect the power cord of the electric vacuum cleaner 1 to an outlet or the like and use it as a canister-type electric vacuum cleaner, and powerful cleaning can be performed by the electric blower 2 provided inside the electric vacuum cleaner. Becomes

When it is desired to perform a simple cleaning of the surface to be cleaned, as shown in FIG. 6 (b), the hose 5 of the electric vacuum cleaner 1 and the suction pipe 6 are disconnected at the connecting portion 9,
As shown in FIG. 6C, the grip portion 10 of the suction pipe 6
By holding the floor brush 7 and sliding the floor brush 7 on the surface to be cleaned, dust can be collected in the second dust collecting chamber 27. At this time, the electric motor 36 inside the floor brush 7 operates to rotate the rotary brush 22 in the direction of arrow c by the electric power from the storage battery 38 to scoop up the dust and collect it in the second dust collecting chamber 27 behind the floor brush 7. To do. As described above, the switch 31 shown in FIG. 7 and the power supply line of the electric motor 36 and the supply line of the storage battery 38 shown in FIG. 12 and the rotary brush 2 of the floor brush 7.
The wiring for rotating 2 passes through the suction pipe 6 from the substrate 32 shown in FIG.
c, electric wires 40a to 40c, and a brush control board 39, respectively, to control ON / OFF of an electric motor 36 for driving the rotary brush 22 by a drive switch 31 provided in front of the grip portion 10. You can

When dust collects in the second dust collecting chamber 27, the screw (not shown) for fixing the bottom lid 29 can be removed and the dust can be thrown into a trash can or the like. Alternatively, since the second dust collecting chamber 27 is in smooth communication with the elbow 20, the switch 14 for controlling the vacuum cleaner body 4 by connecting the hose 5 and the suction pipe 6 again is turned on.
Alternatively, the electric blower 2 can be operated to transfer the dust to the first dust collecting chamber 3 of the electric vacuum cleaner body 4.

As described above, the characteristic feature of the present invention is that the floor brush 7 has an opening for discarding the second dust collecting chamber 27 and the dust collected in the second dust collecting chamber 27 to the outside. Since the structure includes the part 28, the lid 29 that covers the opening, and the rotating brush 22 for collecting dust from the surface to be cleaned, it can be used as a normal electric vacuum cleaner. By providing the second dust collecting chamber 27 and the rotating brush 22, dust can be collected without a suction fan, so that cleaning can be performed only by the floor brush 7 and the suction pipe 6. Therefore, it is possible to perform simple cleaning without pulling the electric vacuum cleaner body 4, and at that time, the second dust collecting chamber 27 is provided not on the vicinity of the grip portion 10 but on the floor brush 7, especially on the floor sliding member 19. Since the center of gravity is lowered, the weight in the vicinity of the grip portion 10 is lightened, and the weight applied to the user is significantly lightened, so that the operation labor can be reduced.

Even if dust is collected in the second dust collecting chamber, it is possible to dispose of dust by providing the opening and the lid.
By operating the electric blower 2 of the vacuum cleaner body 4, the dust collected in the second dust collecting chamber 27 can be transferred to the dust collecting bag inside the vacuum cleaner body 4.

Further, in this embodiment, since the electric motor 36 for driving the rotary brush 22 and the storage battery 38 are provided, the rotary brush 22 can be driven without moving the floor brush 7 back and forth, and the usability is improved. Of course, since a switch for turning on / off the electric motor is provided at hand, the on / off of the electric motor 36 for driving the rotary brush 22 can be controlled without bending the waist.

When used as a canister type, the drive switch 31 provided in front of the grip portion 10 is used.
It is also possible to turn on the rotary brush 22 by turning on. At this time, the power may be supplied from the electric vacuum cleaner body 4 or the storage battery 38 instead of the storage battery 38.

In this embodiment, the wiring also has a characteristic structure. FIG. 13 shows a wiring diagram of the electric vacuum cleaner according to the present embodiment. In the figure,
Vacuum cleaner body 4, hose 5, suction pipe 6, floor brush 7
The wiring of is enclosed by a dotted line.

In this embodiment, the trigger circuit 43 including the transistor 42 is formed in the circuit for supplying the electric power to the electric motor 36 for driving the rotary brush 22 of the floor brush 7 surrounded by the dashed line in FIG. Is. In this embodiment, the trigger circuit 43 is formed by the transistor 42 and the two resistors 44 and 45.

As described above, by providing the trigger circuit 43 in the electric circuit for driving the rotary brush 22,
It is possible to perform control while preventing a large current from flowing through the wiring for driving the electric motor 36, and it is possible to reduce the diameter of the lead wire used in the circuit. As a result, the lead wire wired to the suction pipe 6 can also be made thin, so that the suction pipe 6 can be prevented from becoming large and the weight thereof can be reduced. Further, by making the lead wire thin, the wall thickness of the suction pipe can be made thin, so that the suction pipe having the same diameter can enlarge the air passage for carrying dust. Further, in the present embodiment, the suction pipe 6 is connected to the drive switch 3 of the electric motor 36.
1 is provided, it is possible to prevent voltage drop in the circuit even if the lead wire becomes long in this way. Conversely, by having the trigger circuit 43,
Since the voltage drop is prevented, it is possible to provide the drive switch 31 on the pipe handle portion 6c which is a hand when the hose 5 and the suction pipe 6 are separated and cleaned.
In addition, since the trigger circuit 43 is provided so that control can be performed while preventing a large current from flowing, safety can be improved.

Further, a characteristic of this embodiment is that the diode 4 is further included in the form including the trigger circuit 42.
FIG. 1 formed with 7, 48 and current fuse 49.
3 has a constant current circuit 46 in an electric circuit for driving the rotary brush 22 surrounded by a chain double-dashed line.

Conventionally, there has been a floor brush provided with a rotating brush driven by an electric motor, but no one provided with such a constant current circuit as a circuit for driving the electric motor. Therefore, the driving force of the rotating brush may be too large, and there is a problem that the carpet is damaged if a carpet with long bristles is caught. However, in the present embodiment, the rotating brush 22 is Since the electric circuit for driving is provided with the constant current circuit 46, the electric current is controlled so that the electric current does not exceed the constant current value, and therefore the electric motor is not given a load over the constant value.

As a result, since a current does not flow through the motor at a constant current value or more, only a constant torque is output, and it is possible to prevent the temperature from rising due to the lock of the motor even when foreign matter is caught in the rotating brush. In addition to improving safety, even if a carpet is sandwiched, it will only output a certain torque, making it difficult to damage the sandwiched object.

In the present embodiment, the current fuse 49 is used for safety, but the constant current circuit 46 prevents the flow of a current larger than a certain amount, so that the current fuse need not always be used. On the contrary, in the present embodiment, when the floor brush 7 is not provided with the constant current circuit 46, it is possible to use a current fuse or the like so as to prevent the current from flowing beyond a certain level.

Further, the characteristic structure of this embodiment is that a charging circuit 50 for charging the rechargeable battery 38 is provided inside the vacuum cleaner body 4, and the charging circuit 50 includes the hose 5 and the suction pipe 6. That is, the storage battery can be charged by being connected through.

With such a structure, the user 30 uses the electric vacuum cleaner 1 as a canister type or separates the hose 5 and the suction pipe 6 and uses the floor brush 22 as shown in FIG. 14 (a). After cleaning, connect the hose 5 and the suction pipe 6 again, turn off the drive switch 31, insert the power cord plug 51 into the outlet 52, and store it as shown in FIG. 14 (b). The rechargeable battery 38 can be charged. By thus having the charging circuit inside the electric vacuum cleaner body 4, it is not necessary to provide a charging device for charging the rechargeable battery 38 separately from the electric vacuum cleaner, which improves storability and when cleaning is completed. Since it can be charged as it is, it does not require special work for charging,
The convenience is improved. In the present embodiment, an example in which a rotating brush and an electric motor for driving the rotating brush are used as the cleaning means is shown. However, when the charging circuit is provided in the main body of the electric vacuum cleaner as described above, the cleaning brush is provided in the floor brush. The cleaning means can be applied even if the cleaning means includes an electric blower, or both a rotating brush and an electric blower.

Further, as shown in FIG. 10, the second dust collecting chamber in the present embodiment is the rotary brush 2 of the second dust collecting chamber 27.
The length of the wall surface 27 a facing 2 is almost the same as the axial length of the rotary brush 22, and is 60% or more of the axial length of the rotary brush 22. With such a configuration, the dust collected by the rotating brush 22 can be efficiently stored in the second dust collecting chamber, which is preferable.

Alternatively, as shown in FIG. 15, the second dust collecting chamber 2
Even if the length of the wall surface 27a facing the rotating brush 22 of No. 7 is 60% or less of the axial length of the rotating brush 22, dust introducing portions 27b and 27c for introducing dust into the second dust collecting chamber 27.
Is provided, the same effect can be achieved even if the length of the dust introducing portions 27b and 27c is 60% or more of the axial length of the rotating brush 22. Figure 15
In the embodiment shown in, the dust introducing portions 27b and 27c are configured by the inclined walls that are inclined toward the second dust collecting chamber 27, but the configuration of the dust introducing portion is not limited to this, and the rotation is not limited to this. It is sufficient that the dust scraped off by the brush 22 can be efficiently stored in the second dust collecting chamber.

Further, as shown in FIG. 16, the rotating brush 22
The second dust collecting chamber or the dust introducing portion formed with a length of 60% or more of the axial length can be formed so as to be biased to the left or right with respect to the floor brush 7. When formed in this manner, the twist of the rotary brush 22 may be formed at an angle to scrape dust toward the second dust collecting chamber or the dust introducing portion when scraping dust from the surface to be cleaned. It is suitable. By forming in this way, it is possible to satisfactorily collect dust in the second dust collecting chamber or the dust introducing portion, and it is possible to effectively use the shaded space 58. The second dust collecting chamber and the dust introducing portion may be applied to the floor brush that does not use the electric motor as in the first embodiment.

Third Embodiment Hereinafter, the third embodiment of the electric vacuum cleaner of the present invention will be described in detail. In the description of this embodiment, the same components as those in the above-described embodiment will be designated by the same reference numerals and the description thereof will be omitted.

The electric vacuum cleaner according to the present embodiment has substantially the same structure as that of the above-described second embodiment. FIG. 17 shows a wiring diagram of the electric vacuum cleaner according to the present embodiment.

The present embodiment is different from the second embodiment in that the electric blower inside the vacuum cleaner body 4 operates for a predetermined time when the hose 5 and the suction pipe 6 are connected. In this embodiment, as shown in FIG. 17, the main body drive circuit 53 is configured to detect the connection between the hose 5 and the suction pipe 6. In the present embodiment, the resistor 54 is connected in parallel with the switch 14, and when the hose 5 and the suction pipe 6 are connected, the drive circuit 53 is closed via the resistor 54, so that the drive circuit 53 detects it. It is configured to do. And
The drive circuit 53 is provided with a controller 55, and the controller 55 controls based on this detection information as shown in the flowchart of FIG.

That is, in step 1, it is detected whether or not the hose 5 and the suction pipe 6 are connected, and when it is detected that they are connected, the electric blower 2 is started as in step 2. This starting time is measured as in step 3, and compared with the predetermined time, and when the predetermined time has elapsed, the electric blower 2 is stopped as in step 4. This predetermined time is a time sufficient to transfer the dust contained in the second dust collecting chamber 27 provided in the floor brush 7 to the first dust collecting chamber 3 inside the electric vacuum cleaner body 4. Is preferably set.

After that, the control device 55 also monitors whether or not the hose 5 and the suction pipe 6 are disconnected as in step 5, and when the hose 5 and the suction pipe 6 are disconnected, It is configured to detect when the connection is made again and to activate the electric blower 2.

By being configured in this way,
The electric vacuum cleaner according to the present embodiment performs cleaning by disconnecting the hose 5 and the suction pipe 6 and performing the charging shown in FIG. 14 even if dust is collected in the second dust collecting chamber 27 inside the floor brush 7. The second dust collection chamber because the dust collection can be automatically transferred to the first dust collection chamber 3 that can store a large amount of dust when the hose 5 and the suction pipe 6 are connected for storage. It is possible to save the trouble of processing the dust stored in the.

Further, in this embodiment, as shown in FIG. 17, the drive circuit 53 is provided with the detection device 56, and when the hose and the suction pipe are connected based on the detection result of the detection device 56, The control device 55 is configured to change a predetermined time during which the electric blower operates.

The information detected by the detection device 56 is stored in the first dust collecting chamber 3 of the vacuum cleaner body 4 by irradiating the weight sensor or the first dust collecting chamber with light and measuring the amount of the light transmitted. That detects the amount of dust collected, that measures the degree of vacuum in the first dust collection chamber 3, that that measures the operating current value of the electric blower 2 (many dusts inside the first dust collection chamber 3 When stored, the load on the electric blower 2 increases and the current value for operation increases.) Or, it is detected that dust is passing through the suction path such as the suction pipe or the hose. It is possible to use various ones such as the ones that are used, and to change the operation time by using one or more of the detection results.

The detection result of the detection device 56 is the control device 5
5 and the operation time of the electric blower 2 is variable, the flow chart of FIG. 18 is changed to, and the control device 55 controls as in the flow chart of FIG.

That is, in step 1, it is detected whether or not the hose 5 and the suction pipe 6 are connected, and when it is detected that they are connected, the electric blower 2 is started as in step 2. Then, the detection information by the detection device 56 is acquired (step 3), and the operation time t and the operation output x are calculated based on this information (step 4). Based on the calculation result, while keeping the operation output as x (step 5), while comparing the operation time, it is compared whether or not t seconds have elapsed, and when the predetermined time has elapsed, the electric blower 2 is stopped (step 6). ). Further, similarly to the flowchart shown in FIG. 17, the control device 55 thereafter monitors whether the hose 5 and the suction pipe 6 are disconnected or connected (step 8), and the hose 5 and the suction pipe 6 are monitored. When 6 is disconnected, it is configured to detect when it is connected again and start the electric blower 2.

With such a structure, when the main body has much dust, the suction force is reduced, and the dust stored in the second dust collecting chamber 27 is sufficiently transferred to the first dust collecting chamber 3. This is prevented, and the suction time can be adjusted according to the amount of dust stored inside the first dust collection chamber 3. In addition, since it does not operate with an operation time that is longer than necessary or with an operation output that is stronger than necessary, it is possible to save energy.

Further, in the structure for detecting the amount of dust stored in the first dust collecting chamber 3 in the cleaner body 4 having the above-mentioned structure, based on the detection result of the detection device 56, It is also possible to provide a dust amount display device 57 that displays the amount of dust in one dust collection chamber 3 so that it can be visually recognized by the user. As shown in FIG. 17, in the present embodiment, the drive circuit 53 is provided with a dust amount display device 57 composed of an LED lamp, and it is determined from the detection result of the detection device 56 that the dust amount is not less than a predetermined amount. Then, the LED lamps forming the dust amount display device 57 are operated. The dust amount display device 57 is configured to be visible from the outside of the main body as shown in FIGS. 1, 6, and 14, and the user can visually recognize that the dust amount is full. it can. This allows the user to
It is possible to save the trouble of checking the amount of dust stored in the first dust collecting chamber 3 one by one.

Further, as shown in FIG. 20, when the dust amount is full in the dust amount detection in step 3 in the flowchart of FIG. 19, in the step after step 3, for example, between the steps 7 and 8, the dust amount is increased. If the control device 55 is configured to control the quantity display device to operate, the user will soon have a large amount of dust stored in the first dust collecting unit 3 after using the vacuum cleaner. Since the user can know the fact, the user can check the amount of dust before using the vacuum cleaner next time. As a result, the dust bag in the first dust collecting chamber can be replaced or dust can be discarded immediately after use or before the next use of the electric vacuum cleaner, and it is not necessary to replace the paper bag or the like during cleaning.

[0082]

As described above, the electric vacuum cleaner of the present invention improves convenience.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an electric vacuum cleaner according to the present invention.

FIG. 2 is a side sectional view showing a structure of a connecting portion 9 between a suction pipe 6 and a hose 5 according to the first embodiment.

FIG. 3 is a partial cross-sectional top view showing a configuration of a connecting portion 9 between a suction pipe 6 and a hose 5 according to the first embodiment.

FIG. 4 is a bottom cross-sectional view of the floor brush according to the first embodiment. .

FIG. 5 is a side sectional view of the floor brush according to the first embodiment.

FIG. 6 is an explanatory diagram for explaining a usage state of the electric vacuum cleaner of the present invention.

FIG. 7 is a side sectional view showing a configuration of a connecting portion 9 between a suction pipe 6 and a hose 5 according to the second embodiment.

FIG. 8 is a partial cross-sectional top view showing a configuration of a connecting portion 9 between a suction pipe 6 and a hose 5 according to the second embodiment.

9 is an enlarged view of a wiring portion in FIG.

FIG. 10 is a side sectional view of a floor brush according to the second embodiment.

FIG. 11 is a bottom view of the floor brush according to the second embodiment.

FIG. 12 is a wiring schematic diagram of the floor brush in the second embodiment.

FIG. 13 is a wiring diagram of the electric vacuum cleaner according to the second embodiment.

FIG. 14 is an explanatory diagram for explaining a storage state when a rechargeable battery is charged.

FIG. 15 is an explanatory diagram for explaining a configuration of a dust introduction unit.

FIG. 16 is an explanatory diagram illustrating a configuration of a second dust collecting unit or a dust introducing unit.

FIG. 17 is a wiring diagram of the electric vacuum cleaner according to the third embodiment.

FIG. 18 is an explanatory diagram showing an example of control steps of the control device in the third embodiment.

FIG. 19 is an explanatory diagram showing an example of control steps of the control device in the third embodiment.

FIG. 20 is an explanatory diagram showing an example of control steps of the control device in the third embodiment.

FIG. 21 is an explanatory diagram for explaining a conventional technique.

FIG. 22 is an explanatory diagram for explaining a conventional technique.

FIG. 23 is an explanatory diagram for explaining a conventional technique.

[Explanation of symbols]

1 vacuum cleaner, 2 electric blower, 3 first dust collecting chamber,
4 vacuum cleaner body, 5 flexible hose, 6 suction pipe, 7 floor brush, 22 rotating brush, 27 second dust collecting chamber, 28 opening, 29 lid, 36 electric motor, 38
Rechargeable battery, 50 charging circuit.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Akihiko Kobayashi             2-3 2-3 Marunouchi, Chiyoda-ku, Tokyo             Inside Ryo Electric Co., Ltd. (72) Inventor Kitakomi Sou             1728 Omaeda, Hanazono-cho, Osato-gun, Saitama 1728               Within Mitsubishi Electric Home Equipment Co., Ltd. (72) Inventor Miwa Ito             1728 Omaeda, Hanazono-cho, Osato-gun, Saitama 1728               Within Mitsubishi Electric Home Equipment Co., Ltd. F-term (reference) 3B057 DA00 DA07                 3B061 AA06 AD03 AD05 AE02

Claims (9)

[Claims] 1. An electric vacuum cleaner main body having a first dust collecting chamber for accommodating sucked dust, the electric vacuum cleaner having a built-in electric blower, and one end of the electric vacuum cleaner main body communicating with the first dust collecting chamber. A flexible hose to be connected, a suction pipe having one end connected to the other end of the hose, and a floor brush connected to the other end of the suction pipe. The hose and the suction pipe are detachable. The floor brush is provided with a second dust collecting chamber, an opening for discarding dust collected in the second dust collecting chamber to the outside, a lid for covering the opening, and a cleaning target. An electric vacuum cleaner having a rotating brush for collecting dust from a surface thereof. 2. The floor brush is provided with an electric motor for driving the rotary brush and a storage battery for driving the electric motor, and the pipe is operated to turn ON / OFF the electric motor for driving the rotary brush. The vacuum cleaner according to claim 1, further comprising an operation unit provided with a switch that can be turned on. 3. The rotary brush provided in the floor brush has a substantially cylindrical shape, and the second dust collecting chamber provided in the floor brush has at least a length of a wall surface facing the rotary brush. Dust introduction that is 60% or more of the axial length of the rotating brush, or is configured to be 60% or more of the axial length of the rotating brush that introduces dust into the second dust collecting chamber. The vacuum cleaner according to claim 1 or 2, further comprising a portion. 4. The electric vacuum cleaner according to claim 2, wherein a trigger circuit is provided in an electric circuit for driving the rotary brush. 5. A constant current circuit is provided in an electric circuit for driving the rotary brush.
The vacuum cleaner according to any one of 1. 6. The electric vacuum cleaner according to claim 1, wherein the electric blower operates for a predetermined time when the hose and the suction pipe are connected. 7. The amount of dust stored in the first dust collecting chamber of the electric vacuum cleaner body, the degree of vacuum in the first dust collecting chamber, the operating current value of the electric blower, or the suction of the suction pipe or the hose. Any one or more of the amount of dust passing through the path is provided with a detection device for detecting the amount of dust, and when the hose and the suction pipe are connected based on the detection result of the detection device. 7. The electric vacuum cleaner according to claim 6, further comprising a control device that changes a time period during which the electric blower operates. 8. An electric vacuum cleaner main body having a first dust collecting chamber for accommodating sucked dust, the electric vacuum cleaner having a built-in electric blower, and one end of the electric vacuum cleaner main body communicating with the first dust collecting chamber. A flexible hose to be connected, a suction pipe having one end connected to the other end of the hose, and a floor brush connected to the other end of the suction pipe. The hose and the suction pipe are detachable. The floor brush is provided with a second dust collecting chamber, an opening for discarding dust collected in the second dust collecting chamber to the outside, a lid for covering the opening, and a cleaning target. A cleaning circuit for collecting dust from a surface and a storage battery for driving the cleaning circuit, and a charging circuit for charging the rechargeable battery is built in the electric vacuum cleaner body. Vacuum cleaner. 9. Based on the detection result of a detection device for detecting the amount of dust stored in the first dust collecting chamber in the cleaner body,
The electric vacuum cleaner according to claim 7 or 8, further comprising a dust amount display device that displays a dust amount.