JPS62201129A - Electric cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to electric 1ift rock removal used in homes, etc. Regarding structure.

(Prior Art) Conventionally, in this type of vacuum cleaner having a suction port provided with a rotating brush driven by an electric motor, an AC motor is used as the electric motor, and AC power is applied to the AC motor through the vacuum cleaner body. A structure that supplies power is adopted. However, with this structure, the rotating brush of the suction port cannot be rotated.

Furthermore, as shown in Japanese Utility Model Application Publication No. 56-1556, the suction port body is provided with a DC motor that drives a rotating brush, and a secondary battery that is a power source for this DC motor, and a secondary battery that is a power source for this DC motor. There is also a structure that houses a power supply unit consisting of a charger that includes a transformer for charging the battery. According to this structure, the rotating brush can be rotated using only the suction port body without requiring an external power cord.

However, even with this structure, dust cannot be sucked unless the suction port body is connected to a vacuum cleaner body that includes an electric blower.

(Problem to be solved by the invention) As described above, in conventional vacuum cleaners, dust cannot be sucked unless the suction port body is connected to the vacuum cleaner body. The problem was that the vacuum cleaner had to be dragged around, making it inconvenient to use.

The present invention aims to solve these problems, and provides an easy-to-use vacuum cleaner that can suck dust not only with the suction port connected to the vacuum cleaner body, but also with the suction port alone. The purpose is to obtain.

[Structure of the invention]

(Means for Solving the Problems) The electric agitation machine of the present invention is provided with a collection chamber Iy, which has a built-in AC electric blower and communicates with the suction side thereof, and is connected to the collection chamber.
A vacuum cleaner body is provided with a suction port at υ, and a suction port body is connected to the suction port through a hose, a grip tube, and an extension tube in order and has a dust suction port. A rotating brush facing the , a DC motor that drives this rotating brush, and this DC electric! ! A secondary battery is provided as a power source for the JJ machine, and the hose and the grip tube are detachably separable, and the suction port body is provided with a secondary battery that is a power source for the JJ machine, and the suction port body is provided with a secondary battery that is a power source for the JJ machine, and the suction port body is provided with a secondary battery that is a power source for the JJ machine. In addition to providing two air passages, an opening/closing body is installed to block one of these air passages by 13 Jl, and one air passage is made to directly connect the dust suction port and the extension pipe. A dust filter and a suction fan driven by the DC motor are provided in the air passage.

(Function) The vacuum cleaner of the present invention has two main usage forms. One is a normal usage type, and the other is an upright type usage type.

In normal usage, there is a hose,
Connect the suction port body through the grip tube and the extension tube in sequence.

Then, a rotating brush is driven by a DC motor to scrape out the dust from the surface to be agitated, such as a carpet, and at the same time, the AC electric feeder inside the vacuum cleaner unit drives this suction brush from the dust suction opening of the suction opening. Dust is introduced into the collection chamber in the vacuum cleaner body and stored therein through the air passage directly connected to the mouth, the extension tube, the grip tube, and the hose.

On the other hand, in the case of use as an upright type (1), the hose and the grip tube are separated, and the grip tube is gripped to perform cleaning. At this time, the opening/closing body closes the directly connected air passage in the suction port body, and opens the other air passage. Then, a rotating brush is driven by a DC motor using a secondary battery as a power source, and a fan in the other air passage is driven to suck in dust from the dust suction port and pass it through the dust collection filter in the other air passage. Accumulates in the body in the suction port.

(Embodiment) The configuration of an embodiment of the present invention will be described based on FIGS. 1 to 8.

In Fig. 1, 1 is a case-like vacuum cleaner main body, and an AC electric blower 2 that is operated by an AC power supply is installed at the rear of the case.
and,! ! ! A diverted transformer 3 is provided. Also, on the inside front side of the vacuum cleaner main body 1, there is a collection valve that communicates with the suction side of the AC electric blower g12. t4 is formed.

Further, on the front side of this L1 remover body 1, the toilet collection chamber 4 is provided.
A suction port 5 is opened facing the transformer 3, and a connector 6 electrically connected to the transformer 3 is provided.

Reference numeral 11 denotes a hose, which includes a bellows-shaped hose body 12 that can be bent freely, and an insertion pipe 13 that is provided at one end of this hose body 12 and is detachably fitted and connected to the suction port 5 of the cleaning 1 body 1.
and a connecting pipe 1 provided at the other end of the hose main body 12.
It consists of 4. A cord 11 is held along this hose 11 and has a plug 15 at one end which is detachably connected to the connector 6 of the wooden body 1 of the agitator remover, and the other end of the cord 11 is connected to the It is connected to a connector 16 provided on the front side of the outer peripheral surface of the tube 14.

In addition, 18 has a rear end that is detachably attached to the connecting pipe 14.
It is a grip tube that is connected together and has a bent shape. A plug portion 19 is provided on the rear side of the outer peripheral surface of the grip tube 18 and is detachably connected to the connector 16 of the connecting tube 14. Further, this plug portion 19 is provided with a switch 20 .

Further, 21 is an extension tube that is detachably fitted and connected to the front end of the grip tube 18. At the front end of the extension tube 21, a suction port body 31, which will be described later, is detachably attached. It is expected to be continued.

Furthermore, a cord 22 is held along the extension tube 21. One end of the cord 22 is connected to the plug portion 19 of the grip tube 18, and the other end is connected to the suction port body 31.

Next, the structure of the suction port body 31 will be explained with reference to FIGS. 2 to 6.

This suction port body 31 consists of a lower case 32 having an open upper surface, and an upper case 33 having an open lower surface and joined to the upper side of the lower case 32. A semi-cylindrical portion 35 having an open front surface of a connecting pipe 34 is pivotally attached to the rear center of the suction port body 31 so as to be movable up and down. Further, the rear part of the connecting pipe 34 is formed into a connecting pipe part 36 that projects rearward from the semi-cylindrical part 35.
6 is adapted to be detachably fitted and connected to the +1fJ extension tube 21.

Further, inside this suction port body 31, there are a plurality of partition walls 37.
A rotating brush chamber 38 is defined on the front side, and an electrical equipment storage chamber 39 and the connecting pipe 34 are formed on the rear side.
An air passage chamber 40 that communicates with the belt chamber 40 is divided into parallel sections lv in the left-right direction, and a belt chamber 41 is roughly located on the side of the rotating brush chamber 38 and the electrical equipment storage chamber 39. ing. A dust suction port 42 is formed on the lower surface of the rotating brush chamber 38, and a first communication port 43 and a second communication port 44 are arranged in the left-right direction on the rear surface of the rotating brush chamber 38. An opening is formed in each. Further, in the air passage chamber 40, the second communication port 4 is provided.
4, a dust collection chamber 45 is divided and formed. moreover,
A communication port 46 is formed on the left side surface of the collection WI chamber 45 in FIGS. 2 and 3, that is, on the side surface on the electrical component storage chamber 39 side.

In the air passage chamber 40, a first communication port 43 is provided.
A space extending from the air passage chamber 40 and the dust collection chamber 45 to the connecting pipe 34 via a gap between the right-hand sides in the figure forms a direct air passage 47 that is one air passage. In addition, the connecting pipe 3 is connected from the second communication port 44 to the dust collection chamber 45, the communication port 46, and the gap between the air passage chamber 40 and the left side side surface of the dust collection chamber 45 in the drawing.
4 forms a dust collection air path 48 which is the other air path separated from the direct connection air path 41.

In addition, the rotary brush chamber 38 and the dust collection chamber 45 are
Four openings are formed on the upper surface of the suction port body 31. A clamp 51 having an inverted T-shaped side surface is supported at the rear edge of the opening 49 so as to be slidable within a predetermined range toward the rear of the building.
2, he is constantly forced forward fj.

Reference numeral 53 denotes a removable lid for opening and closing the opening 49, which has an engagement step 54 in the shape of a side cursor formed on its front edge, and an engagement step 54 that opens rearward on its rear edge. Groove 5
5 is formed. The lid body 53 is attached to and detached from the frontage portion 49 by engaging and disengaging the engagement step portion 54 with the front edge of the frontage portion 49 and engaging and disengaging the clamp 51 with the engagement groove portion 55. It has become so.

Furthermore, a pair of left and right front wheels 56 and a rear wheel 57 for supporting and running are rotatably provided on the lower surface side of the suction port body 31, located at the front edge J3 and the rear edge thereof. Furthermore, a rotary brush 61 is rotatably disposed within the rotary brush chamber 38 . That is, bearings 63 are rotatably fitted to the tips of shafts 62 protruding from both end surfaces of this rotating brush 61, and these I
One NI receiver 63 is fixed to each of spiral bearing support portions 64 formed on both sides of the rotating brush holder 38. Further, brush bristles 65 are spirally arranged on the circular surface of the rotating brush 61. Further, a pulley 66 is fixed to one shaft 62 of this rotating brush 61, and this pulley 66 is located within the belt chamber 41.

A fan 67 is supported by a shaft 68 on a rotating white stone between the side surface of the air passage chamber 40 and the side surface of the dust collection chamber 45 on the distribution port 4G side.
A pulley 69 is attached to the end of the shaft 68 that protrudes inward.
is fixed.

Furthermore, a DC motor 70 is disposed within the three electrical component storage chambers. The DC motor 70 has two rotating shafts 71 and 72, and a pulley 73 is fixed to one rotating shaft 71 that projects into the bell 1 to the chamber 41. This pulley 73 and the rotating brush 6
The rotation shaft 7 of the DC motor 70 is connected to the pulley 66 of 1.
A hook 14 is passed to the bell 1 which transmits the rotation of the bell 1 to the rotating brush 61. A pulley 75 is also fixed to the other rotating shaft 72 of the DC motor 70, and this pulley 75 and a pulley 69 of the fan 67 transmit the rotation of the rotating shaft 72 to the fan 67! The belt 7G is passed.

Furthermore, in the electrical equipment storage chamber 39, the DC power supply! F
A secondary battery such as a storage battery that powers JJn70? Nine ponds 77 are arranged.

Further, an opening/closing body 81 is supported on the upper surface of the suction port body 31 so as to be slidable in the left-right direction. And this opening/closing body 81
An operating portion 82 that protrudes upward from the upper surface of the suction port body 31 is formed on the upper edge. Further, a connecting plate portion 83 that slides along the rear surface of the rotary brush cavity 38 and closes either one of the dual-speed ports 43, 44 is integrally provided vertically on the opening/closing body 81. ing. Furthermore, during this time, the body was opened 8
A groove portion 84 is formed at the end of the electrical component storage chamber 1 on the side of the electrical component storage chamber 39, and is inclined in a direction facing upward toward the electrical component storage chamber 39.

On the other hand, a rotating body 85 is provided on the front side of the electrical component storage chamber 39.
In the bearing hole 8G formed from the side facing the center,
It is rotatably supported by a support shaft 87. The rfJ end of this rotating body 85 is connected to the groove 8 of the opening/closing body 81.
4 so as to be movable in the left and right direction. Further, at the rear end of this rotating body 85, the DC M#J#3
A disk-shaped connector 88 that is moved toward and away from above is supported by the belt 16 that interlocks the fan 67 and the fan 67 .

Reference numeral 91 denotes a dust collection filter that is detachably installed in the dust collection chamber 45, and includes a bag-shaped filter body 92 made of a paper bag shade.
and a mouth frame 93 made of cardboard or the like glued to the front end of the filter main body 92. Further, this opening frame 93 includes a collection 1 superimposed on the second communication opening 44.
A frontage 9094 is formed.

- A spiral mouth frame holding portion 95 is formed at the front peripheral edge of the dust collection chamber 45, and the peripheral edge of the mouth frame 93 is removably fitted into this mouth frame holding portion 95. By doing so, the dust collection filter 91 collects the dust. It is designed to be held in the chamber 45.

Next, the configuration of the electric circuit will be explained with reference to FIGS. 7 and 8.

Both ends of the primary coil 99 of the transformer 3 built into the vacuum cleaner main body 1 are connected to an AC power source 100. Moreover, this transformer 3 has two secondary coils 101. 102, one secondary coil 1
01 has a diode 103 . 10
4 to the first positive terminal 16a of the connector 16 of the connecting tube 14 of the boss 11, and the intermediate point is connected to the first negative terminal 16b of the connector 16. Also, the above!・Lance 3
The other secondary coil 102 has both ends connected to the second positive terminal 1 (3c) of the connector 16 via diodes 105 and 106, and a midpoint connected to the second positive terminal 1 (3c) of the connector 16. It is connected to the negative side terminal 16d of.

Further, the plug portion 19 of the grip tube 18 is connected to the first positive terminal 16a, the first negative terminal 16b, the second positive terminal 16c, and the second negative terminal 16d of the connector 16, respectively. A first positive terminal 19a and a first negative terminal 19b are connected correspondingly.
, a second positive terminal 19c and a second negative terminal 1'ld.

The first positive terminal 19a of this plug portion 19
and the first negative terminal 19b and the grip tube 18
The positive input terminal 108a and the negative output terminal 108b of the charging circuit 107 are provided on the suction port body 31;
are connected to each. In addition, this charging circuit 10
7 positive side output terminal 109a and negative side input terminal 1
09b are connected to the anode and cathode of the secondary battery 77, respectively.

Further, the switch 20 and the DC motor 70 are connected in series between the positive terminal 19c and the negative terminal 19d of the plug portion 19.

Furthermore, l! of the secondary battery 17! Two poles are directly connected to one end of the DC motor 70, and an anode of the secondary battery 77 is connected to the second positive terminal 19c of the plug section 19 via an interlocking switch 110. . This interlocking switch 110 is provided at the rear end of the grip tube 14, and its switch 111 is normally biased in the closing direction by a spring 112. On the other hand, the hose 11
The connecting tube 14 and the grip tube 18 are connected to the front end of the connecting tube 14.
A convex pressing member 113 is provided to press the switch 11 and press the interlocking switch 110 when connected to the switch.

Next, the configuration of the charging circuit 107 will be explained with reference to FIG.

The minus side input terminal 108b and the minus side output terminal 109b are commonly connected.

A first thyristor 114 and a diode 115 are connected in series between the positive input terminal 108a and the positive output terminal 109a, and a resistor 116 is connected in parallel with the first thyristor 114. It is connected.

A diode 117, a resistor 118, and a second thyristor 119 are connected in series between the positive input terminal 108a and the negative terminals 108b and 109b, and a resistor 119 is connected between both ends of the resistor 118. 120 and a diode 121 are sequentially connected in series. In addition, the diode 117 and the resistor 1
18 and the negative terminal 1oab.

A smoothing capacitor 122 is connected between the capacitor 109b and the capacitor 109b. Further, a diode 123 is connected between the intermediate point between the resistor 118 and the second thyristor 119 and the gate of the first thyristor 114, and between the gate and the cathode of the first thyristor 114. A resistor 124 is connected.

Furthermore, a Zener diode 125 and a resistor 126 are connected in series between the cathode of the first thyristor 114 and the negative terminals 108b and 109b, and a midpoint between the Zener diode 125 and the resistor 126 is a resistor. 127 to the gate of the second thyristor 119. Further, a capacitor 128 is connected between the gate and cathode of the second 4-noirister 119.

Further, a diode 129 and an LED 130 are connected in series between the intermediate point of the resistor 120 and the diode 121 and the negative contacts 108b and 109b.

Next, the operation of this embodiment will be explained.

First, a case in which cleaning is performed using the vacuum cleaner main body 1 will be described.

At this time, the hose 11 is connected to the suction port 5 of the cleaning body 1.
The suction port body 31 is sequentially passed through the grip tube 18 and the extension pipe 21.
Connect it. Of course, the plug 15 of the hose 11 is connected to the connector 6 of the returning aircraft body 1, and the plug portion 19 of the grip tube 18 is connected to the connector 16 of the hose 11.

In this state, DC output is supplied from one secondary coil 101 of the transformer 3 in the vacuum cleaner body 1 to the charging circuit 107 via the upper circuit in FIG. The secondary battery 17 of the mouth body 31 is charged.

Here, the operation of charging circuit 107 will be explained.

When the voltage across the secondary battery 77 is low, the potential on the cathode side of the first thyristor 114 is higher than the potential on the cathode side of the first thyristor 114.
Since the potential on the − side is higher, the first cyrisk-114 is made conductive, and a charging current flows to the battery 77, thereby charging the battery 11. In this state, the Zener diode 125 is in a non-conducting state, and the second thyristor 119 whose gate is connected to the Zener diode 125 is also in a non-conducting state f3. therefore,
Since the potential at the midpoint between resistor 120 and diode 121 is sufficiently high, LED 130 lights up to indicate that charging is in progress.

Then, when the battery 77 is charged and the voltage between its two electrodes increases, the Zener diode 125 becomes conductive, and the gate of the second positive resistor 119 is energized, thereby making the second positive resistor 119 conductive. Then, the potential on the gate side of the first one-neurister 114 is relatively lowered, the first thyristor 114 becomes non-conductive, and the battery 77 is prevented from becoming rechargeable. Also,
A relative decrease in the potential at the midpoint between resistor 120 and diode 121 causes LED 130 to turn off, indicating that charging has ended.

On the other hand, power is supplied from the other secondary coil 102 of the transformer 3 to the DC motor 70 in the suction port body 31 via the lower circuit in FIG. Driven.

In addition, when the hose 11 and the grip tube 18 are connected,
By pressing the pressing body 113 on the hose 11 side, the grip tube 18
The side interlocking switch 110 is open, and the connection between the battery 17 and the motor 70 is cut off.

Also, at this time, the opening/closing body 82 of the suction port body 31 is moved to the left in the figure, as shown in FIG.
is closed, and the first communication port 43 is left open. That is, the dust collecting air passage 48 is closed, and the direct air passage 47 is left open. In addition, as the opening/closing body 82 is moved to the left in this way, the rotating body 85 whose front end is engaged with the inclined groove 84 of the opening/closing body 82 moves to the counterclockwise position M in FIG. A connector 88 that rotates in the rotational direction and is provided at the rear end connects the pulley 75 of the electric motor 70 and the fan 6.
The belt 76 is separated from the belt 7G connecting it to the pulley 69 of No. 7, and the belt 76 is relaxed. In this state, the rotation of pulley 75 of electric motor 70 is not transmitted to pulley 69 of fan 67, and fan 67 does not rotate.

Then, the user drives the suction port body 31 over the surface to be cleaned, such as a carpet, while gripping the grip tube 18.

Then, the rotating brush 61 scrapes out dust from the carpet or the like. In addition, along with the suction airflow caused by the drive of the electric blower 2 of the vacuum cleaner body 1, dust is sucked in from the dust suction port 42 of the suction port body 31, and the direct air passage 47 in the suction port body 31
, connecting pipe 34, extension pipe 21, grip pipe 18 and hose 1
1 into the east fourth chamber 4 of the vacuum cleaner body 1, and is stored there.

By the way, as mentioned above, the secondary battery 7 inside the suction port body 31
Since the DC output for charging the vacuum cleaner 7 is supplied from the vacuum cleaner main body 1, that is, the heavy transformer 3 is provided in the vacuum cleaner main body 1, the suction port body 31 can be made lightweight, and its operation will improve.

In addition, by operating the switch 20 of the grip tube 18, the DC motor 70 of the suction port body 31 can be started 9j or stopped.

Further, the grip tube 18 and the hose 11 can be separated, and the suction port body 31, the extension tube 21, and the grip tube 18 can be used as a so-called upright type vacuum cleaner.

When the grip tube 18 and hose 11 are separated in this way,
When the plug portion 19 of the grip tube 18 is removed from the connector 16 of the hose 11, the charging circuit 107 is opened.

Further, the pressing body 113 of the hose 11 is separated from the interlocking switch 110 of the grip tube 18, and this interlocking switch 110 is closed. Therefore, in this state, the electric power v170 of the suction port body 31 is supplied with power from the secondary battery 17. Of course, starting or stopping the electric motor 41170 is
This is done by operating the switch 20 of 8.

If you wish to suck dust when using the upright type, move the opening/closing body 82 of the suction port body 31 to the right in the figure as shown in FIG. 3 to close the direct air passage 41, and The dust collection air passage 48 is opened. In addition, as the pause 81 is moved to the right in this manner, the rotating body 85 rotates in the clockwise direction shown in the figure, as shown in FIG. 5, and the connector 88 presses against the belt 76. Been this bell I
・76 is nervous.

In this state, the rotation of the pulley 75 of the electric motor Ia 70 is transmitted to the pulley 69 of the fan 67, causing the fan 67 to rotate.

Then, the rotating brush 61 scrapes out dust from the surface to be cleaned such as a carpet, and the air current generated by the rotation of the fan 67 sucks the dust from the dust suction port 42, and the dust is sucked into the air passage 47. The dust is stored in a dust filter 91 provided in the dust filter 91 .

In this way, the direct connection air passage 47 and the dust collecting air passage 48, which are selectively opened and closed, are provided in the suction port body 31, and the suction port body 31 can be used not only when connected to the vacuum cleaner body 1 but also when the suction port body 31 is connected to the vacuum cleaner body 1. Since the suction can be carried out even when the vacuum cleaner is in a vacuum cleaner, when cleaning a small area, the hose 11 and the grip tube 18 can be separated, and the heavy vacuum cleaner body 1 can be easily used without having to pull it. Can be used as a type of vacuum cleaner. Moreover, in this case, electricity! Since the power source of the IJ machine 70 is the battery 17, there is no need for a power cord extending to the outside, making it more convenient to use as a cordless type.

Furthermore, as mentioned above, since the hose 11 and the grip tube 18 can be detachably separated, that is, the extension tube 2
Since the bow 21 can be removed from the grip tube 18 while the grip tube 18 is still connected to the grip tube 1, when used as an upright type, the grip tube 18 can be grasped and cleaned, making it easy to clean by hand. battery 7.
7 and the weight 1 of the electric motor 70.

In addition, as mentioned above, the interlocking switch 110 allows the grip tube 18 and the boss 11 to be attached and detached electrically! Since the i70 and the battery 77 are connected or disconnected, the grip tube 18
In addition to attaching and detaching the motor 70 and the hose 11,
7 is not required.

By the way, especially when used as an upright type, there are cases where it is desired to sweep the carpet by rotating only the rotary brush 61 without suctioning dust, or to spread powder. The operator operates the opening/closing body 81 of the suction port body 31 to loosen the belt 76 connecting the pulley 75 of the electric motor 70 and the pulley 69 of the fan 61 to prevent the fan 67 from rotating.

In any case, even when used as such an upright type, the fact that the transformer 3 is not built into the suction port body 31 improves operability.

Further, as described above, the two air passages 47 in the suction port body 31
．． The pulley 7 of the electric motor 10 is connected to the opening/closing body 81 that switches 48.
5 and the pulley 69 of the fan 67 are linked, so that when the air passages 47 and 48 are switched, the fan 67 is automatically switched between rotation and non-rotation, which saves time and effort in the switching operation. is not required.

Note that when replacing the dust collection filter 91 inside the suction port body 31, first operate the clamp 51 to open the lid body 53, then remove the old Toshi filter 91 and attach the new dust collection filter 91. , close the lid body 53.

Furthermore, as described above, since the secondary battery 77 is charged when the suction port body 31 is connected to the wooden body 1, forgetting to charge the battery can be prevented.

〔Effect of the invention〕

According to the configuration of the present invention, the suction port body can be used as a hose, a grip pipe or a
: Connected to the main body of the vacuum cleaner through the extension pipe in order, and driven by the AC electric blower inside the main body of the vacuum cleaner, the air is supplied to the collection chamber inside the main body of the vacuum cleaner. In the normal usage form of collecting dust,
For example, when cleaning a small area, a suction fan is rotated by 1171 m of direct current that is separated between the bowse and the grip tube, and the battery inside the suction port is used as a power source to drive a rotating brush. It can be used as a convenient cordless and upright type that collects dust with a dust collection filter, and the dual-use form can be selected as appropriate depending on the location of notification, etc., improving usability.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the vacuum cleaner of the present invention;
Figure 2 is a cross-sectional view of the same suction port body when the dust collection air path is blocked, Figure 3 is a cross-sectional view of the same suction port body when the direct connection air path is blocked, and Figure 4
The figure is IV-IV? of the same figure 3? J2t17i side view, Fig. 5 is a V-v sectional view of Fig. 3 of the above, Fig. 6 is a perspective view of the opening/closing body J3 and rotating body of the above, Fig. 7 is a circuit diagram of the above, Fig.
The figure is a circuit diagram of the same charging circuit. 1. Vacuum cleaner body, 2. AC electric blower, 4. Collection room, 5. Suction port, 11. Hose, 18. Grip tube.
21...Extension pipe, 31...Suction port body, 42...Dust suction port,
41... Direct connection route which is one wind route, 48... 1 on the other side
Dust collection path 1, which is m path, 61...Rotating brush, 67...
Fan, 70... DC motor, 77... Secondary battery, 81
...Opening/closing body, 91...Dust collection filter. ! 61st Takuyunpu now so preface 2WJ v-, i y-, i preface 5g

Claims (2)

[Claims] (1) A vacuum cleaner body with a built-in AC electric blower and a dust collection chamber communicating with the suction side, and a suction port facing the dust collection chamber, a hose, a grip pipe, and an extension pipe at the suction port. a suction port body having a dust suction port connected in series through the suction port body, a rotating brush facing the dust suction port, a DC motor for driving the rotating brush, and a power source for the DC motor. A secondary battery is provided, the hose and the grip tube are detachably separable, and the suction port body has two air channels separated from each other that communicate the dust suction port and the extension pipe. At the same time, an opening/closing body is provided to close one of these air passages, one air passage is used as an air passage that directly connects the dust suction port and the extension pipe, and the other air passage is provided with a dust collection filter and the aforementioned air passage. A vacuum cleaner characterized by being equipped with a suction fan driven by a DC motor. (2) The vacuum cleaner according to claim 1, wherein when the directly connected air passage is closed by the opening/closing body, the DC motor and the fan are connected in conjunction with the opening/closing body.