JP2001321298A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric cleaner capable of exhausting and dispersing clean exhaust. SOLUTION: A vacuum cleaner consists of a dust chamber 109 provided in the body of a cleaner 100, a fan 110 placed at the back of the dust chamber 109, a power supply 111 with some storage batteries 138a arranged at the back of the fan 110, and a storage space of exhaust filters 136 set under the fan 110. The storage space of exhaust filters 136 takes in the exhaust from the fan 110 and has exhaust filters 116 that remove dust from the exhaust. The exhaust from the storage space of exhaust filters 136 is dispersed among the exhaust pipes 164, 165 and 156 and is discharged from vents 113, 114 and 115 formed on the body of the cleaner 100.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner comprising a vacuum cleaner main body, a suction hose, a handle at hand, a connecting pipe, and a mouthpiece.

[0002]

2. Description of the Related Art Vacuum cleaners that are currently widely used are:
A cleaner body having a pair of large wheels on both sides of a housing containing a blower, a flexible suction hose having one end attached to the cleaner body and communicating with the blower, and the other end of the suction hose A canister type comprising: a handle attached to the blower and connected to the blower; a connecting pipe attached to the handle and connected to the suction hose; and a suction body attached to the connecting pipe and connected to the connecting pipe. It is a vacuum cleaner.

[0003] These cleaner bodies are generally provided with a cord reel device and supplied with power from home wiring. However, as shown in Japanese Patent Application Laid-Open No. Hei 7-39483, the cleaner body is provided with a rechargeable battery to enable charging. There is. In general, the main body of the vacuum cleaner cools the blower with exhaust air from which dust has been removed, and generally exhausts air from a specific location such as the rear of the rear or large wheels, but recently it is called an exhaust circulation system. There is a thing which returns exhaust gas to a mouthpiece and takes in again.

[0004]

In the conventional example of exhausting air from the main body of the vacuum cleaner, since exhaust is concentrated from a specific location, it is a problem that the exhaust hits the user. In addition, there is a problem that the exhaust gas simulates convection in the room and diffuses dust near the cleaning.

An object of the present invention is to provide a vacuum cleaner capable of dispersing and discharging clean exhaust gas.

[0006]

In order to achieve the above object, a vacuum cleaner according to the present invention is provided with an exhaust filter for taking in exhaust air from a blower into a vacuum cleaner body and removing dust from the exhaust air. An exhaust filter storage unit having
The exhaust gas discharged from the exhaust filter storage portion is branched into a plurality of exhaust passages and discharged from exhaust ports formed at a plurality of locations of the cleaner body.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In the following description, the same or similar parts and positions, arrows, and the like are denoted by the same reference numerals in order to avoid redundant description.

First, a schematic structure of a vacuum cleaner system with a charging stand according to the present embodiment will be described with reference to FIG. 1 and FIG. FIG. 1 is an external view of a vertical storage posture of the vacuum cleaner system, in which the vacuum cleaner in the vertical storage posture is set in a state of being set together with an external view in which the vacuum cleaner is to be set on a charging stand. FIG. 2 is an external view showing a cleaning state of the vacuum cleaner.

In FIG. 1 and FIG. 2, a reference numeral 1 generally designates a vacuum cleaner system with a charging stand. The vacuum cleaner 10 is called a canister type, and the vacuum cleaner 1
And a charging stand 700 for charging the power supply to zero. That is, in the vacuum cleaner system 1 with a charging stand, the power supply unit including the rechargeable battery built in the vacuum cleaner 10
Like a conventional vacuum cleaner equipped with a cord reel, a power cord is connected to the home wiring, and the power supply supplied from the power cord drives the built-in blower to limit the operating range by performing cleaning. It can be moved freely and cleaned without receiving it. After cleaning, the charging stand 7 remains in a vertical storage position with a small installation area.
00 to charge the power supply unit.

The vacuum cleaner 10 has a mechanism (not shown) for sucking dust into the dust collection chamber, for example, a vacuum cleaner body 100 having a blower, and a connection attached to a hose mounting portion 101 of the vacuum cleaner body 100. A body (hereinafter referred to as a sub-handle portion) 600, a flexible suction hose 200 having one end attached to the sub-handle portion 600 and communicating with the blower, and a flexible suction hose 200 attached to the other end of the suction hose 200 and attached to the blower. Hand handle 3 to communicate
00, a connecting pipe 400 attached to the handle 300 and communicating with the suction hose 200, and a mouthpiece 500 attached to the connecting pipe 400 and communicating with the connecting pipe 400.

In this embodiment, a main body mounting mechanism 610 for mounting the vacuum cleaner main body 100 to the sub handle 600, a hose mounting mechanism 620 for mounting the suction hose 200, and A dust path 630 that communicates the main body 100 with the suction hose 200, a connection pipe mounting mechanism 640 that holds the connection pipe 400, and a handle 660 that allows the user to hold the sub handle 600. Accordingly, an extremely general vacuum cleaner can be made the vacuum cleaner 10 having excellent storage and transportability.

According to the present embodiment, the handle portion 6
60 on both sides of the vacuum cleaner body 100 and the connection pipe 4.
00, the vacuum cleaner 10 in the vertical storage position can be lifted with one hand through the handle portion 660 while maintaining the vertical posture to improve the right and left weight balance to improve the transportability. it can.

Further, since the hand handle 300 is fixed to the upper end of the vertical storage posture, the hand handle 300 at the high position is held, and the traveling means 102 is used to vertically store the hand handle 300. The vacuum cleaner 10 fixed in the posture can be easily moved. Therefore,
In this embodiment, for example, the user moves to the charging stand 700 in the vertical storage posture and lifts up via the handle 660, so that the user does not significantly change the posture and the predetermined position of the charging stand 700 is not changed. The vacuum cleaner 10 can be easily set.

In this charging posture, since the connection pipe is attached to the bottom surface side of the vacuum cleaner main body in the conventional charging posture, the bottom surface of the vacuum cleaner main body is visible when the suction body side is directed to the front, and the appearance is deteriorated. . Conversely, if the upper surface of the vacuum cleaner body is directed toward the front, the appearance is improved, but an ineffective space is formed above the mouthpiece facing the wall surface, and storage efficiency and a sense of stability are deteriorated. However, in this embodiment, the connection pipe 4
00 is carried on the upper surface of the main body 100 of the vacuum cleaner, so that the bottom surface, which is inferior in design effect, can be directed to the wall surface side, and the mouthpiece 500 can be directed to the front surface. Can be improved.

The charging stand 700 has a low profile and a low profile, and has a concave vacuum cleaner main body storage portion 701 on its upper surface so as to stably support the vacuum cleaner 10 in the vertical storage posture from below. And a mouthpiece storage part 702 are provided.
Thus, the battery can be stored compactly with the minimum installation area, and the vertical storage posture can be set as the charging posture. In addition, this charging stand 700 is provided with a circuit board 703 and a power supply (transformer) 704 shown in FIG. Since the first raised portion 705 and the second raised portion 706 are formed, the internal mounting efficiency is improved, the installation area is further improved, and the vacuum cleaner 10 in the vertical storage position can be stably supported. it can.

Further, in this embodiment, in order to assist the suction power of the rechargeable vacuum cleaner 10, a rotary brush which rotates via a drive motor 502 as shown in FIG. 501 is provided. The power supply unit 51 that supplies power to the drive motor 502
1 is provided on the suction body 500 itself. That is, in this embodiment, the loss of the power supply unit is reduced by providing the power supply units (111, 510) separately in the vacuum cleaner main body 100 and the suction main body 500. This is because, for example, when the power supply unit 111 is centrally arranged in the vacuum cleaner main body 100, the suction unit 50 is connected to the suction unit 200 via the suction hose 200 and the connection pipe 400.
When power is supplied to the power supply 0, a long wiring distance causes loss in the middle of the discharge, so that the operation time is shortened, or the power supply unit for compensating for the shortage and the wiring are complicated. . In this embodiment, the above problem can be solved.

In this embodiment, charging terminal portions 707 and 708 are provided in the cleaner main body storing portion 701 and the mouthpiece storing portion 702 of the charging stand 700 with the division of the power supply portion. ing.

Further, as shown in FIGS. 4 and 5, the main body 100 of the vacuum cleaner according to this embodiment has the dust collecting chamber 109, the blower 110, and the power supply section 111 arranged in a line in the front and rear directions. It is possible to make the whole compact while maintaining the pulling travel in the traveling posture by the moving means 102, the change from this traveling posture to the vertical storage posture, or the weight balance excellent in transportability.

Further, the vacuum cleaner main body 100 has exhaust ports dispersedly provided at a plurality of positions of the housing. As a result, it is possible to reduce the concern about the exhaust as compared with the conventional example in which the exhaust is performed from a specific location.

Hereinafter, the schematic structure of the vacuum cleaner 10 according to this embodiment will be further described with reference to FIGS.

In FIG. 2, the main body 100 of the vacuum cleaner is shown.
Is provided with a dust collection chamber 109 (see FIG. 5) having a disposable dust bag 144 (see FIG. 5) therein, and a pair of large wheels 1
The moving means 102 is constituted by the free wheel 04 and one free wheel 105, and can be moved via the suction hose 200. In the normal cleaning (running) posture, the large wheels 1
04 and the universal wheel 105 take a long posture before and after being installed on the cleaning surface.

The main body 100 of the vacuum cleaner has the dust collecting chamber 109 on one side in the longitudinal direction, and the blower 110 on the other side.
And a power supply unit 111. And the dust collecting chamber 10
9, a free wheel 105 is provided, and a pair of large wheels 104 are provided on both sides of the blower 110 and the power supply unit 111. Further, the hose mounting portion 101 which is horizontally oriented along the longitudinal direction is provided at an end in the longitudinal direction on the dust collecting chamber 109 side.
Are formed. In addition, the pair of large wheels 104
The installation part 104a around the large wheel 104 is provided on the other end in the longitudinal direction opposite to the end where the hose mounting part 101 is provided. At the end).
Thus, the main body 100 of the vacuum cleaner moves from the cleaning position supported by the pair of large wheels 104 and the universal wheels 105 so that the universal wheels 105 float around the rotation axis B1 of the large wheels 104. By rotating the hose mounting portion 101 in the vertical direction, the hose mounting portion 101 can be set in a vertical storage posture such that the hose mounting portion 101 is oriented vertically.

In this vertical storage position, the vacuum cleaner body 10
0 is the pair of large wheels 104 and the vacuum cleaner main body 10
0 is stably supported by legs 103 provided on the upper rear surface.

The operation of the vacuum cleaner main body 100 is controlled by receiving an operation signal transmitted from the hand handle 300 by an infrared receiver 112 provided on the upper surface of the vacuum cleaner main body 100.

One of the major features of the vacuum cleaner main body 100 according to this embodiment is that the power supply unit 111 having a rechargeable battery is built in, so that it can be connected to domestic wiring as in the related art. And can move freely. Moreover, in this embodiment, by disposing the power supply unit 111 in the space where the cord reel is conventionally disposed, the canister-type canister-type without the power cord without changing the size and balance of the vacuum cleaner main body 100. A cordless vacuum cleaner has been realized. In particular,
In this embodiment, it is noted that cleaning using the ordinary vacuum cleaner 10 is about 20 minutes, and about 25 minutes can be operated in consideration of the operation time, the arrangement space, and the power of the blower 110. Charge capacity is set.

Of course, in this embodiment, assuming that it is desired to perform further cleaning after the cordless driving has been performed for a predetermined time, the attached power cord can be connected to operate with ordinary domestic wiring. It can be carried out. Since the blower 110 employed in this embodiment employs a commutator motor, it can be driven by a DC power supply or an AC power supply. In this embodiment, by utilizing the characteristics of the commutator motor, a DC power is normally supplied from the power supply unit 111, and an AC power is connected to the blower 110 by connecting a power cord as necessary. I have to.

Another major feature of the vacuum cleaner main body 100 according to this embodiment is that it employs distributed exhaust. For example, in this embodiment, a pair of large wheels 104 provided on both sides of the blower 110, the bumpers 106 on both sides of the dust collection chamber 109, and a first exhaust unit 113 on the back side of the main body, respectively. 2, the exhaust unit 114,
A third exhaust part 115 (see FIG. 6) is provided. This disperses the exhaust gas, thereby reducing the user's concern about the exhaust gas. Moreover, these exhausts are exhausted by an exhaust filter 116 in which exhaust from the blower 110 is built.
After passing through (see FIG. 5) once, the air is exhausted from each exhaust unit, so that each exhaust passage becomes long, so that noise can be reduced.

The sub-handle part 600 has a function of attaching the sub-handle part 600 to the main body 100 of the vacuum cleaner, a function of attaching the suction hose 200 to the sub-handle part 600, and a function of It has a function of communicating the main body 100 with the suction hose 200, a function of holding the connection pipe 400, and a handle function for a user to hold the sub handle 600.

Next, the suction hose 200 functions as a transport passage for transporting dust to the vacuum cleaner main body 100 and a function as a moving pulling means for moving the vacuum cleaner main body 100. Have. In this embodiment, a belly-shaped flexible hose is employed.

The hand handle 300 has a function of communicating the suction hose 200 with the connection pipe 400, a function of controlling the operation of the vacuum cleaner main body 100, a function of moving the vacuum cleaner main body 100, and a function of the suction body 500. And a function of fixing or releasing the expansion and contraction of the connection pipe 400.

The handle 300 is detachably connected to the suction hose 200 and further connected to the connection pipe 400.
Both are detachably attached to each other, so that the suction hose 200 communicates with the connection pipe 400 to form a dust conveyance path.

Further, the hand handle 300 is
The vacuum cleaner main body 100 can be moved by the handle portion 302 via the suction hose 200, and further, the movement of the mouthpiece 500 can be operated. Further, the vacuum cleaner 10 in the vertical storage position can be tilted obliquely via the handle portion 302, and can be moved by pulling or pushing in this state.

In particular, according to the handle portion 302, the twisting operation, that is, the rotation P1 about the central axis A1 of the connection pipe 400 can be easily performed. In addition, in this twisting operation, the suction hose 200 is always moved to the handle portion 30 by the gravity with respect to the handle 300 at hand.
2 is rotatably mounted so as to be located below the suction hose 20.
Since 0 is not raised, the burden on the wrist can be reduced.
At this time, since the handle portion 302 is provided at the upper portion, the suction hose 200 provided below does not disturb the twisting operation. Thereby, the mouthpiece 500 can be rotated 90 degrees or more on the floor surface (cleaning surface) as described later (P2 in the figure).

Further, an operation unit 303 for operating the vacuum cleaner main body 100 is provided near the handle unit 302.
Is provided. In addition, near the handle portion 302, there is provided a first fixing or canceling expansion / contraction of the connection pipe 400.
Is provided. In this embodiment, the first telescopic switch 301 is connected to the handle 3
It is provided at a lower portion near the base of 02 and can be operated with the index finger so as to trigger the pistol when holding the handle portion 302. With this mechanism, the user can operate the one-hand operation for fixing and releasing the expansion and contraction of the connection tube 400 while holding the handle 302.

The connection pipe 400 is connected to the handle 3
00 and the mouthpiece 500 are communicated with each other, and the hand handle 300 and the mouthpiece 500 are fixed at a predetermined position, so that the hand handle 300 moves (moves and rotates).
Is transmitted as a movement (movement or rotation) of the mouthpiece 500. In this embodiment, the connection pipe 4 is formed by combining two pipes having different sizes, that is, a first pipe 420 and a second pipe 440.
00 is configured to be expandable and contractable so as to be fixed at a predetermined length, and the hand handle 300 is attached to one side and the mouthpiece 500 is detachably attached to the other side.

In this embodiment, the fixing or release of the expansion and contraction of the connecting pipe 400 is performed by the handle 30.
0 so that the connection pipe 400 can be expanded and contracted while being operable with the first expansion / contraction switch 301 provided on the main handle 0.
A second telescopic switch 403 is provided at the lower end of the “0”.

Further, in this embodiment, the mounting portion 401 is provided at the end of the pipe body whose length changes with the mouthpiece 500 by expansion and contraction, and the connection pipe 400 is inevitably reduced by contracting the connection pipe 400. Since the mounting portion 401 can be fitted to the connection pipe mounting mechanism 640 provided on the sub handle portion 600, operability can be improved.

The mouthpiece 500 is provided with a mouthpiece body 1000 having a mouthpiece opening 1107 (see FIG. 12) for sucking dust on the bottom surface, and the mouthpiece body 1000 is connected to the connection pipe 400. The suction body 100 always moves against the movement of the hand handle 300 transmitted through the
And a free connection portion 1500 that operates so that the bottom surface of the suction tube 0 contacts the cleaning surface (floor surface) and communicates with the connection pipe 400 so that an air flow containing dust sucked from the suction main body 1000 is guided to the connection pipe 400. Is done.

The suction main body 1000 has a flat and substantially rectangular shape, and the free connecting portion 1500 is rotatably mounted at the center of the upper surface thereof. The universal connecting portion 1500 includes:
The first arm 1501 is formed of a tubular first arm 1501 and a second arm 1502, and one end of the first arm 1501 is a first arm.
The rotatable portion 1503 is attached so as to be rotatable in the Y direction which is an elevation angle with respect to the suction main body 1100, and the second
One end of the arm 1502 is provided at the other end of the first arm 1501 via the second rotating part 1504, and is rotatable in the X direction to rotate the mouthpiece body 1000 in parallel with the cleaning surface. Installed. And the free connection part 1500 is connected to the height direction Y of the hand handle 300 and the left and right direction X so as to be rotatable around the mouthpiece 500 and rotates the rotation P1 of the twisting operation of the hand handle 300. It can be transmitted to the rotation P2 of the mouthpiece body 1000 with respect to the cleaning surface as it is.

That is, according to this embodiment, when the handle portion 302 of the hand handle 300 is straightened, as shown by a solid line in FIG.
2 can be cleaned in the V1 direction, which enables a wide range of cleaning by taking the first driving mode in which the depth direction of 0 is the same as the front-rear direction of cleaning.
As shown by the dotted line, the second driving mode in which the longitudinal direction of the suction main body 1000 coincides with the front-rear direction of the cleaning enables the cleaning in the V2 direction, which enables narrow cleaning.

Thus, for example, by twisting the handle 300 by 90 degrees, the suction body 500 is changed from the normal horizontal posture in which the longitudinal direction is the left-right direction to the longitudinal direction in which the suction body is rotated 90 degrees in the front-rear direction. The rotation can be changed in the same manner as the steering wheel and wheels of the car so that the vehicle is in the vertical posture.

The major feature of this embodiment is that
The power supply unit 510 (see FIG. 12) including the rechargeable battery is disposed below the first rotating unit 1503, so that the power supply unit 510 is housed without increasing the size of the apparatus. In particular, in this embodiment, the universal connecting portion 1
Since the first arm 1501 is located above the second arm 1502 in a state in which the power supply unit 510 is horizontal (in a lying state), the power supply unit 510 is utilized by utilizing a step between the two arms. Has been arranged.

Further, in this embodiment, the center of gravity of the power supply unit is located on the rear side of the rotation center of the first rotating unit 1503, so that the balance of the suction body 500 with respect to the rotation center is improved. Let me. Because of this,
Even if the suction body 500 is lifted off the floor via the connection pipe 400, the bottom surface of the suction main body 1000 is set to be substantially parallel to the floor.

As described above, according to the vacuum cleaner 10 according to the present embodiment, the cordless canister-type vacuum cleaner can be freely moved without being restricted by the power cord. The pulling travel through the handle 300 can be improved. Moreover,
The power supply units (111, 510) for realizing this are arranged on the vacuum cleaner main body 100 and the suction body 500 provided with the drive motors (110, 502) receiving the power supply, respectively, and the respective arrangements are for each device. Since they are arranged compactly without enlarging the size, loss in power supply can be reduced and operability can be improved.

Also, through the handle 300,
By providing a function of controlling the operation of the vacuum cleaner main body 100 and a function of moving the vacuum cleaner main body 100 and a function of operating the movement of the mouthpiece 500, and a function of fixing or releasing the expansion and contraction of the connection pipe 400, The user in the standing posture holding the hand handle 300 can perform the driving operation, cleaning and storage without greatly changing the posture.

Moreover, in this vertical storage position, the hand handle 300 is arranged and held at the top, so that the user can move through the hand handle 300 in the vertical storage position.

Hereinafter, the vacuum cleaner main body 100 will be described in detail with reference to FIGS. 3A and 3B are external views of the main body of the vacuum cleaner, wherein FIG. 3A is a front perspective view, FIG. 3B is a plan view, FIG. 3C is a front view, and FIG. 3D is a right side view.
FIG. 4 is a component configuration diagram of the vacuum cleaner main body. FIG. 5 is a central vertical sectional view of the vacuum cleaner main body. FIG. 6 is a rear perspective view showing a state in which the power supply unit is inserted into the vacuum cleaner main body.
7A and 7B are explanatory views of the charging unit. FIG. 7A is a rear perspective view of the vacuum cleaner with a rear cover removed, and FIG. 7B is a perspective view showing the structure of the charging unit. FIG. 8 is an explanatory diagram showing the flow of exhaust air from the vacuum cleaner main body. FIG. 9 is a cross-sectional view showing the flow of exhaust air from the vacuum cleaner main body. FIG. 10 is a cross-sectional view of a main part illustrating exhaust from wheels of the vacuum cleaner main body.

First, the external structure of the vacuum cleaner main body 100 will be described with reference to FIG. In FIG. 3, the external appearance of the vacuum cleaner main body 100 is long in the front-rear direction in which a cross-sectional shape similar to a shape in which logs are horizontally arranged is formed in a large round shape. The pair of large wheels 104 is attached to the rear of both sides of the vacuum cleaner main body 100 which is long before and after this. The large wheel 104 has an axle 117 so that the lower side is narrowed when viewed from the front and the upper side is opened.
(See FIG. 4) is provided at an angle, thereby improving the traveling performance and turning performance of the vacuum cleaner main body 100. Also,
One universal wheel 105 is provided at the front of the bottom surface of the vacuum cleaner main body 100.

The main body 100 of the electric vacuum cleaner is configured such that the height of the end portion in the longitudinal direction where the large wheel 104 is disposed is increased, so that the electric blower 110 and the power supply section 111 and the power An arrangement space for the dust filter 116 is secured. The upper surface of the vacuum cleaner main body 100 is formed so as to be inclined from the end in the longitudinal direction having a height to the other end, so that the traveling performance and the compactness are achieved.

A main handle 107 is provided at the rear end of the main body 100 from the center of the upper surface of the main body 100 so that the main body 107 can be transported while maintaining the horizontally long cleaning posture. The main handle portion 107 has a U-shaped structure, and a pair of ends of the U-shape rotate about a pair of rotation shafts 108 provided above the center of gravity G1 of the vacuum cleaner main body 100. Then, it can be raised via the grip portion projecting to the rear end portion, or can be stored in a concave portion formed on the upper surface of the vacuum cleaner main body 100.

Further, the infrared receiver 112 and the infrared signal from the hand handle 300 cannot be transmitted due to running out of the battery or the like at the front of the upper surface of the vacuum cleaner main body 100. An operation display panel 118 provided with a power switch to be operated when desired to be operated and a plurality of display lamps for displaying various operation states is provided.

The main body 100 of the vacuum cleaner has a front case 11 having a hose mounting portion 101 substantially at the center thereof.
9 is a hinge 120 at the lower end and the operation display panel 1
18 is attached to the front part 18 so as to be openable and closable via a lock mechanism 121. With this structure, the front case 119 can be opened and closed with the vacuum cleaner main body 100 in the vertical storage position, and with the front case 119 opened, the dust collection chamber 109 is exposed. The disposable dust collection bag 144 (not shown) attached inside can be easily replaced.

Further, the first exhaust portion 113 provided on the large wheel 104 has a plurality of small hole groups 113 formed on the entire inside of the surrounding installation portion 104a as viewed from the side.
a. The small hole group 113a always forms the crescent-shaped first exhaust portion 113 above the large wheel 104 by the wheel cover 122 fixedly attached to the axle 117 of the large wheel 104. It has become.

The bumper 106 is formed substantially at the center of the front part and both sides of the main body 100 of the vacuum cleaner.
A plurality of small hole groups 114a are provided on both sides of the bumper portion 106.
Is formed.

In this embodiment, distributed exhaust is performed through the first exhaust unit 113, the second exhaust unit 114, and a third exhaust unit 115 described later in detail. .

Further, on one side behind the upper surface, there is provided a power cord connecting portion 123 connected to supply power from the domestic wiring. Accordingly, when the power cord is attached, the state is the same as the state where the power cord is pulled out from the cord reel of the conventional example, so that the power cord can be used without discomfort.

In this embodiment, the height H2 from the cleaning surface in the running posture to the top of the vacuum cleaner main body 100 is set to 220 mm, the width W1 is set to 240 mm, and the front and rear length L1 is set to 350 mm. ing.

As described above, the vacuum cleaner main body 100 according to the present embodiment has a housing of the same size as the conventional vacuum cleaner main body in which the conventional blower and the code reel are arranged side by side or in front and rear. Has been realized.

Referring to FIGS. 4 and 5, the component structure and the internal structure of vacuum cleaner main body 100 according to this embodiment will be described in detail. 4 and 5, the vacuum cleaner main body 1
The housing No. 00 includes a lower case 124, an upper case 125, the front case 119, the rear case 126, and a dust collecting chamber cover 127 which are formed by resin. The upper case 125 and the lower case 124 are vertically aligned substantially at the center of both sides and attached with screws (not shown).

On the rear sides on both sides of the lower case 124, there are formed wheel base portions 128 formed to project upward. At the center of the wheel base portion 128, the axle 117 projecting outward is provided.
8, the large wheel 104 is rotatably mounted. Further, the wheel base portion 1 concealed by the large wheel 104
An exhaust port 129 for supplying exhaust gas to the first exhaust unit 113 is formed in an upper part of the second exhaust unit 113. The wheel cover 122 is fixed to the axle 117.

The lower case 124 and the upper case 1
Inside 25, a front inner wall 130 and a rear inner wall 131 which divide this internal space into three large parts in the front and rear direction are formed. A front interior space 132 is provided in front of the front interior wall 130, a rear interior space 134 is provided behind the rear interior wall 131, and a central interior space 133 for accommodating the blower 110 is formed between the two interior walls. Is done. The front inner wall 13
An opening 135 is formed at the center of 0 to allow communication from the front internal space 132 to the central internal space 133, and the rear inner wall 131 closes the central internal space 133 and the rear internal space 134. Formed.

An exhaust filter housing 136 for housing a concave exhaust filter 116 is formed on the bottom surface of the lower case 124 located below the central internal space 133, and the exhaust filter housing 136 and the central internal space 133 are formed. The space 133 communicates. The exhaust filter housing 136 has a bottom cover 13 whose bottom can be opened and closed by a rear hinge.
7, so that the exhaust filter 116 can be attached and detached.

On the other hand, the rear interior space 134 is formed so as to communicate with the exhaust filter housing 136 below the rear interior wall 131, and the substantially box-shaped power supply unit 111 is provided at the center of the rear interior space 134. It is formed. The power supply section 111 does not communicate with the rear internal space 134. In this embodiment, the power supply 11
1 is formed by the upper case 125, and the power supply 1
11 is formed by a lower case 124 and an upper case 125
And the lower case 124, the power supply 11
1 is sealed from the surrounding rear interior space 134. An insertion opening 139 for accommodating a charging pack 138 including a plurality of rechargeable batteries is provided in the power supply unit 111 on the bottom surface of the lower case 124, and the charging pack 138 inserted from the insertion opening 139 is located behind the blower 110. It is located at.

The bottom surface of the lower case 124 located below the front interior space 132 is formed flat, and the free wheel 105 is mounted thereon. Further, a plurality of openings 140 are formed in front of both sides of the lower case 124 located on both sides of the front interior space 132 in the front-rear direction, and a second exhaust part 114 is provided to cover the openings 140. The bumper section 106 is attached. In addition, inside the lower case 124 and the upper case 125, ribs and exhaust passages for attaching various devices are provided.

As described above, the upper case 125
An operation display panel 118 is provided at the front, and a main handle 107 is provided from the center to the rear. The rear part of the upper case is formed in a concave shape, and the upper part of the power supply unit 111 is formed in the concave part 141, and the concave part 141 is covered by the rear case 126.

The front case 119 is provided with the hose connection part 101 to which one end of the suction hose 200 is attached at the front part thereof, and the upper case 125 and the lower case 1
24 is provided so as to cover the front part. Further, the front case 119 is rotatably mounted via the hinge portion 120 and can be fixed or released via a lock mechanism 121 of the upper case 125. By opening and closing the front case 119, a disposable dust bag 144 (not shown) disposed inside can be attached and detached.

The dust collecting cover 127 is a case in which one side of the front case 119 is open, and is attached to the upper and lower cases 125 and 124 by using a flange 142a around the opening 142. Then, the disposable dust bag 144 is attached using the flange 142a or via an attachment portion (not shown).

The dust collecting cover 127 is housed in the front internal space 132 and forms the dust collecting chamber 109 together with the front case 119. And, the dust collecting cover 127
The circuit board 143 of the operation display panel 118 is disposed by utilizing the space between the upper case 125 and the upper case 125, and the space between both sides of the dust collecting cover 127 and the lower case 124 accommodates the exhaust filter. An exhaust passage communicating with the portion 136 and using this space to communicate with the second exhaust portion 114 is formed.

Next, referring to FIG. 5, the internal structure of the vacuum cleaner main body 100 will be described in more detail. In FIG. 5, the blower 110 includes a fan part 146 having a large diameter disposed at a front part, and a drive motor part 147 having a small diameter disposed behind the fan part 146. A silencer 148 is disposed around the drive motor unit 147, as indicated by hatched portions in FIG. The blower 110 is supported by the front inner wall 130 and the rear inner wall 131 and arranged in the central inner space 133.

The exhaust filter storage section 136 disposed below the central internal space 133 is formed in a rectangular shape when viewed from the bottom, and can store the thin and flat exhaust filter 116. Exhaust filter 11 of this embodiment
Reference numeral 6 denotes a detachable cassette-type antibacterial and deodorizing filter that bends the filter in a bellows shape to increase the surface area, enhances dust collection efficiency, and strongly catches fine dust. For example, this embodiment employs an electrostatic filter. Furthermore, in this embodiment, the central internal space 1
By disposing the exhaust filter housing 136 below the exhaust filter 33, the exhaust filter 116 having a size large enough to accommodate the blower 110 within its projected area can be arranged. Can be enhanced.

On the other hand, a rotary shaft 108 for supporting the main handle 107 is provided above the blower 110. In this embodiment, the fan 146
And the drive motor unit 147 are disposed near the upper part. Further, since the power supply unit 111 is provided in this embodiment, the center of gravity of the state where the power cord is pulled out and the state where the power cord is stored is smaller than that of the related art in which the cord lease is provided at the rear of the main body. Since there is no change in position, the front and rear balance is always uniform when held by the main handle portion 107, so that stable conveyance is possible.

In this embodiment, in consideration of a case where the suction hose 200 is attached to the suction hose attachment portion 101 and is held by the main handle portion 107, the rotary shaft 108 is attached to the vacuum cleaner main body 100. Center of gravity G
It is provided slightly forward of position 1. That is, by providing the rotation shaft 108 of the main handle portion 107 between the front inner wall 130 supporting the blower 110 and the position of the center of gravity G1 of the vacuum cleaner main body 100, the suction hose 2
The main handle 107 always enables stable balance transfer even when 00 is attached or detached.

The dust collecting chamber 109 formed in the front internal space 132 has a center position slightly lower than the fan rotation center position of the blower 110 when viewed from the side. The above-mentioned substrate 143 is arranged on the upper part, and the free wheel 105 is arranged below the dust collecting chamber 109. That is, in this embodiment, the dust collection chamber 10
By arranging the suction hose 9 slightly below the blower 110, the position of the suction hose mounting portion 101 provided at the front of the dust collecting chamber 109 can be lowered, so that the stable pulling travel by the suction hose 200 can be performed. It becomes possible. Furthermore, while securing a certain size of the dust collection chamber 109,
The universal wheel 105 is extended downward, and the upper substrate 1
Since the space for placing 43 can be lowered,
It is possible to realize a compact outer shape with a front bend.

The rear internal space 134 is a space surrounded by the rear internal wall 134 and the rear wall of the housing (the rear wall of the lower case and the rear case 126). In the rear inner space 134, an outer shape of the power supply unit 111 is formed by an upper charging cover 148 formed by the upper case 125 and a lower charging cover 149 formed by the lower case 124. The power supply unit 111 is provided with a charging pack 138 including a plurality of vertically long cylindrical cells 138a (rechargeable batteries) therein. The charge pack 138 is formed of a heat insulating material 150 and a rear internal space 134 around the power supply unit 111.
, And is inserted downward through the insertion port 139, and is held by the charging unit cover 145. (Refer to FIG. 6.) Further, details will be described with reference to FIG.
Each cell 13 is positioned in such a manner that the longitudinal direction of the cell 138a is vertical (the direction perpendicular to the longitudinal direction of the vacuum cleaner body).
8a are arranged in a line before and after being arranged in the horizontal direction and the vertical direction.

On the other hand, the rear internal space 134 is formed between the rear internal wall 13 and the exhaust filter housing 137.
1 is provided with an opening 151 and communicates therewith.
The air that has passed through 16 flows into the rear interior space 134. Further, a charging terminal section 152 connected to a contact point of the charging stand 700 and a power cord connecting section 123 to a power cord are provided at an upper rear portion of the power supply section 111.

As described above, in this embodiment, the dust collecting chamber 109, the blower 110, and the power supply unit 111 are provided in a line in the front-rear direction. The main body 100 can be a simple vacuum cleaner. Further, the power supply unit 111 is connected to each cell 13.
Since the 8a is arranged in one row arranged in the left-right direction and the up-down direction, a space behind the blower 110 can be effectively used, and a compact form having a short front and rear length can be obtained. Further, in this embodiment, the dust collecting chamber 109, the blower 110, the power source 111, and the charging terminal 15
Since 2 are arranged in a line in the front-rear direction, charging in a vertical storage posture with a small installation area is possible. In this vertical storage position, the charging pack 138 is arranged horizontally, so that even if the vacuum cleaner main body 100 falls, the load of the charging pack 138 can be received in a relatively large area. UP can be achieved.

In this embodiment, the large wheels 1
Since the power supply unit 04 is provided on both sides of the power supply unit 111 and the blower 110, the heavy device can be supported by the robust large wheels 104. Moreover, by providing the axle 117 of the large wheel 104 between the power supply unit 111 and the blower 110, the load on the universal wheel 105 is reduced to improve the traveling performance, and the large wheel The change to the vertical storage posture can be easily performed. In this embodiment, since the large wheels 104 having a diameter of 180 mm are provided, the axle 117 is provided behind the blower 110 and near the rear inner wall 131. By providing the axle 117 between the center of the motor unit 147 and the center position of the power supply unit 111, the traveling performance can be improved.

Next, with reference to FIGS. 6 and 7, a description will be given of a back structure of the vacuum cleaner main body 10, and an exhaust structure and a cooling structure on the back surface. First, in FIG. 6, a concave portion 153 having a horizontal surface is formed in the rear case 126 on one side upper portion of the rear surface of the main body, and the power cord connecting portion 123 for connecting a power cord to the horizontal surface has an insertion port facing upward. Attached. As a result, the power cord having the L-shaped insertion hole can be inserted, so that even when the power cord is used for pulling traveling, even if the power cord is subjected to a tensile load, it can be easily removed. it can.

The power cord connecting section 123 is provided with a changeover switch (not shown) so that the power cord connecting section 123 does not become a charging terminal section of the power supply section 111 when the power cord is not connected for safety. I have. This switch connects the power supply unit 111 and the blower 110 when the power cord insertion port is not connected to the power cord connection unit 123. When attached, the power cord connection section 123 and the blower 110 are connected.

Next to the power supply cord connecting portion 123, a slit-shaped intake port 154 constituting a ventilation passage of the power supply portion is provided.
And an exhaust port 155 are provided, and the air sucked from the intake port 154 deprives the heat in the power supply unit 111 of the exhaust port 1.
It is discharged from 55. Further, on both sides of the rear case 126, there are provided leg portions 103 formed so as to protrude. The legs 103 and the large wheels 104 maintain the vertical storage posture of the main body 100 of the vacuum cleaner. Since the concave charging terminal 152 is provided between the pair of legs 103, it is possible to reduce the possibility that the charging terminal 152 touches a floor or the like in a vertical storage posture other than during charging. .

The charging terminal section 152 has a reset switch (not shown) inside its concave shape. In this embodiment, since the power supply unit 111 is provided inside the housing, if the microcomputer (not shown) provided in the circuit 143 runs away for some reason, the main body 100 of the vacuum cleaner is connected to the power supply unit 111 inside. There is a case where the runaway does not stop after receiving the supply of refuse. In the case of the conventional example, the drive motor 110 can be stopped by unplugging the power cord. However, in the case of the rechargeable type, it takes time to remove the charging pack 138. It is also assumed that the user forgets to remove the charge pack 138. Therefore, in this embodiment, the microcomputer is reset by charging. In this embodiment, the other charging terminal 152 and the reset switch are integrated, but may be separated.

Further, the lower portion of the rear case 126 is formed with the third exhaust portion 115 having a slit shape. In addition,
As described above, the charging pack 138 is inserted from below the main body, and is fixed by the charging unit cover 145 attached via a screw or the like. Here, by using the screw as a lock mechanism that can be rotated with a coin or the like, the convenience of battery replacement is good.

In FIG. 7, as shown in FIG. 7 (a), the air discharged from the exhaust filter housing 136 enters the rear interior space 134 through the opening 151 formed in the rear interior wall 131. A third exhaust passage 156 that passes around the power supply unit 111 and is exhausted from the third exhaust unit 115 is provided.

On the other hand, in order to cool the power supply unit 111, a blowing unit 157 provided in the charging unit 111
Through the intake port 154 of the rear case 126, the intake port 158 formed in the upper part of the power supply unit 111, and the exhaust port 1 formed in the upper part of the power supply unit.
59 and a power supply unit cooling passage 160 that is exhausted to the outside through the exhaust port 155 of the rear case 126.

As described above, the reason why the third exhaust passage 156 and the power supply unit cooling passage 160 are separated from each other is that the air passing through the exhaust filter 116 is the air that has cooled the drive motor unit 147, so that the high temperature This is due to the fact that it is difficult to cool the power supply unit 111, which is hot air and has a high temperature during use with the hot air. In this embodiment, in order to separate the two ventilation passages 146 and 160, the power supply unit 111 is connected to the third exhaust passage 14
6 and is hermetically sealed from the surrounding rear interior space 134 to form a unique cooling passage (power supply cooling passage 160). Further, in this embodiment, in order to avoid thermal influence from the third exhaust passage 156, the power supply 111
Is covered with the heat insulating material 150. Although the heat insulating material 150 is provided inside the power supply unit 111, the heat insulation material 150 may of course wrap around the power supply unit 111.

In this embodiment, the structure described above is adopted because the distributed exhaust is adopted. However, if the exhaust gas is not taken into the rear interior space 134, the above-described structure is used. The rear internal space 134 is connected to the power supply 11
It can be 1. If the number of cells 138a provided in the power supply unit 111 is small, it is not necessary to provide the air blowing unit 157 as described above. For example, an air outlet is provided below the rear internal space 134, and the air outlet is provided. The air taken in by convection may cool the charging pack 138 and exhaust the air through an exhaust port formed above the rear interior space 134.

As shown in FIG. 13B, the charging pack 138 of this embodiment has a thin structure in the front-rear direction. (B) is a schematic perspective view of the power supply unit 111 as seen through from behind. The charging pack 138 is composed of cells 138a each having a vertically long columnar outer shape and arranged in three stages vertically and seven rows horizontally, with the longitudinal direction being up and down.
20 cells 138 using the space of a as a wiring space
a are arranged flat. In addition, each row is arranged so that plus and minus are reversed for convenience of serial connection.

In this embodiment, the cell 138a has a longitudinal length (height) Sh of 43 mm and a diameter Sd of 2 mm.
A SUB-C standard rechargeable battery slightly smaller than a 3 mm AA battery is employed. The plurality of cells 138
“a” is wrapped in a resin sheet so as to maintain the above-mentioned arrangement, and becomes the charging pack 138. Therefore, the charge pack 138 is formed by the width Jw of the charge pack 138.
Is about 165 mm, the height Jh is about 133 mm, and the depth is about 25 mm.

That is, a conventional cord reel having a power supply cord length of about 5 m has a diameter J2 of 165 mm and a depth d2 of about 58 mm. The charging pack 138 according to this embodiment may have a size substantially the same as that of the conventional cord reel device even when the size of the power supply unit 111 is taken into consideration. It is possible to realize a cordless vacuum cleaner without largely changing the size of 100. In particular, if the third exhaust passage 156 is not employed, the size of the vacuum cleaner main body 100 can be reduced, or by arranging one row of cells 138a in the depth direction to form two rows before and after, The capacity of the charging pack 138 can be increased by increasing the number of cells 138a.

Further, in this embodiment, the maximum diameter J1
Is 120 mm and the depth d1 is 105 mm.
0, the blower 110 can be arranged within the projected area of the charging pack 138 viewed from the longitudinal direction of the vacuum cleaner main body 100, so that the compact vacuum cleaner 10 having a short front-rear direction is realized. can do.

Further, in this embodiment, as is apparent from FIG. 5, since the charge packs 138 are arranged in a thin line in the front-rear direction, the power supply unit 1 is disposed upward.
11 can be accommodated within the projected area of the lower rear 1/4 of the pair of large wheels (range from 3 o'clock to 6 o'clock of the large wheels 104 as viewed from the side) without overhanging the pair of large wheels. Without imitating, the vacuum cleaner main body 100 containing the charging pack 138 is centered on the large wheels 104.
The cleaning posture can be changed to the vertical storage posture.

Since the rechargeable battery generally has a voltage of 1.2 V, the rechargeable battery of this embodiment has a voltage of 1.2 V × 2
A power supply of 0 = 24V can be supplied. According to this power supply amount, a sufficient amount of work can be obtained without shortening the motor life of the drive motor unit 147, and power of about 25 minutes, which is a standard cleaning time of the user, can be obtained. it can.

In this embodiment, twenty cells 138a secure a power supply of 24V.
The same level as in the present embodiment can also be used for the charge pack 138 that can obtain from 8 to 21 cells, that is, from 18 V to 25.2 V.

The charging pack 138 is inserted into the flat power supply section 111 in which a partition plate 161 is formed at the center in the left-right direction, as shown in FIG. In this embodiment, the charging pack 138 is divided into two right and left parts,
Although it is divided into right and left by the partition plate 161, when one charge pack 138 is used, a rib closely attached to the charge pack 138 may be provided so that air does not flow in the left and right direction.

The partition plate 161 is open at the bottom, and air entering from one of the left and right sides is guided downward, and is guided to the other side via a portion where the partition plate 161 is not provided. . The exhaust port 159 having the blower unit 157 having a propeller fan whose rotation axis coincides with the longitudinal direction of the cell 138a on the other side.
Are arranged, and the intake port 160 is arranged on one side. With this structure, it is possible to take in air from the intake port 158 via the blower unit 157 and exhaust the air that has cooled the charge pack 138 from the exhaust port 159. At this time, the air flows in the longitudinal direction of the cylindrical cell 138a, so that the cooling efficiency can be improved.

Next, with reference to FIGS. 5, 8, 9, and 10, a distributed exhaust structure which is one of the features of the present embodiment will be further described. In the description of FIG. 7, the third exhaust passage 156 constituting one of the distributed exhausts has been described. In the present embodiment, in addition to the third exhaust passage 156, two passages, that is, a total of three exhaust passages It has. Each of these exhaust passages branches after passing through the exhaust filter 116, and the air to be dispersed and exhausted is clean exhaust with very little dust and odor. The air that has been air-purified by the exhaust filter 116 is gently directed upward from the periphery of the main body to suppress the dust rising on the cleaning surface, and to gently ascend the upward upward airflow and the suction body 500. Actively promotes air circulation in the room by synergistic action with the suction force of the air, so that the dust in the air floating in the room can be quickly suctioned everyday and the air in the room can be cleaned during cleaning. Things.

First, in FIG. 5, the dust taken into the dust collecting chamber 109 via the suction hose attaching portion 101 by the suction force of the blower 110 is removed from the disposable dust collecting bag 1.
The dust enters the fan unit 146 through an opening 135 provided at the center of the front inner wall 130, leaving dust on the front unit 44.
In FIG. 9, the air pushed out from the fan unit 146 cools the drive motor unit 147 and is discharged from around the drive motor unit 147. This exhausted air is
It is guided to the upper opening 163 along the inside of the guide 162 formed so as to surround the drive motor 146 (see FIG. 8). The air discharged from the opening 163 is guided downward this time through a passage formed by the outside of the guide 162 and the muffling material 148 provided around the outside of the guide 162, It passes through the exhaust filter 116 provided in the exhaust filter storage section 136.
As described above, in this embodiment, since the dust collection chamber 109, the blower 110, and the power supply unit 111 are arranged in one row, a double exhaust passage is formed around the drive motor unit 147, so that exhaust is performed. Noise can be reduced because the passage is long.

Now, in FIG. 8, the exhaust filter 1
The air that has passed through 16 is branched into three exhaust passages, first, second, and third exhaust passages 164, 165, and 156. Here, since the third exhaust passage 156 has been described above, description thereof will be omitted. First, the first exhaust passage 164 is an exhaust passage that is exhausted from the first exhaust unit 113 provided on the large wheel 104. The first exhaust passage 164 is composed of two exhaust passages (a front passage 157 and a rear passage 158) formed on both sides of the rear inner wall 131.

The front passage 157 is connected to the rear inner wall 1.
31 and a passage wall 159 formed at the front of the rear inner wall 131, and communicates from the exhaust filter 116 to the front passage 157 via an opening (not shown). It rises along 157 and is ejected from the exhaust port 129 provided in the wheel base 128.
On the other hand, the rear passage 158 blows out the air guided to the rear interior space 134 in the third exhaust passage 156 from the exhaust port 129 provided in the wheel base 128 adjacent to the rear interior space 134. .

[0100] As shown in FIG.
8 is exhausted to the outside of the large wheel 104 from a plurality of small hole groups 113a provided in the large wheel 104. At this time, the large wheel 104
Rotates, but since the small hole group 113a is provided on the entire wheel, the exhaust is not hindered by the large wheel 104. On the other hand, about 2
/ 3 is covered by the wheel cover 122, so that the portion other than the crescent-shaped third exhaust portion 113 is concealed, so that the appearance is not impaired. Has become a typical accent.

Returning to FIG. 8, the second exhaust passage 165
Are exhausted from second exhaust portions 114 formed in the bumper portions 106 on both sides of the vacuum cleaner main body 100. The second exhaust passage 114 has a space formed between the lower case 124 and the dust collecting cover 127, an opening 166 that communicates this space with the exhaust filter housing 136, And a plurality of openings 140 formed in the mounting portion 167 of the mounting portion 167, and the second exhaust portion 1 formed in the bumper portion 106 mounted on the mounting portion 167 so as to cover the opening 140.
14.

As described above, the electric vacuum cleaner 10 according to the present embodiment reduces the amount of air exhausted from each exhaust unit by branching the air that has passed through one exhaust filter 116 into a plurality. In addition, it is possible to reduce the discomfort that the user is exposed to the exhaust. In particular, conventionally, a system in which exhaust is performed from the rear of the main body and a system in which exhaust is performed from a pair of large wheels are known.
The point is that exhaust portions (first and second exhaust portions) are provided on both sides of the main body. Thus, the exhaust portion can be enlarged, and the exhaust passage can be lengthened, whereby noise can be reduced. Further, in this embodiment, by providing the third exhaust portion 156 on the back surface of the main body, it is possible to effectively utilize almost the entire circumference of the main body to form the exhaust portion. Noise can be kept low.

In this embodiment, the blower 1
10 is provided with a two-layer intermediate filter (not shown) at the front part 135 to remove large dust leaking from the dust bag 144, and perform high-purity air cleaning with the exhaust filter 116. 1 (not shown) provided near the portion
By providing a layer exhaust filter, a vacuum cleaner having a high cleaning effect is provided. In this embodiment, the exhaust filter is capable of roughly purifying exhaust gas,
The first exhaust unit 113, the second exhaust unit 114, and the third exhaust unit 115 prevent dust from entering from outside.
It is provided inside. For example, the first exhaust unit 113
Is provided on the inner side of the large wheel 104 or on the inner wall surface of the exhaust port 129, and the second exhaust portion 114 is provided on the inner side of the bumper portion 106 or on the inner wall surface of the opening. The part 115 is provided inside the rear wall.

Further, since each exhaust portion is disposed on the peripheral side surface which does not blow up dust on the floor surface and does not blow up dust, or is disposed on the peripheral side surface which does not blow up to the user. The impression can be reduced, and the design can be provided at a position where the user in the standing posture cannot see and hate. Further, in this embodiment, the first exhaust portion 11 of the large wheel 104, which is easy to be seen in the lateral posture,
3 and the second exhaust portion 114 of the bumper portion 106 are each formed accentuately, and furthermore, by forming these two exhaust portions continuously, a design utilizing the function is utilized.

Next, referring to FIG. 10, the structure of the large wheel 106 forming the first exhaust passage 164 will be described in more detail. The large wheel 104 according to this embodiment has a sufficient thickness (the wheel width) of the installation portion 104a around the large wheel 104 and a sufficient thickness of the wheel bearing portion 168. By forming the outer side of the inner side into a concave shape so that the outer side is deeper and the inner side gradually becomes shallower, the overall strength is improved while securing the wheel width and strength. Then, the wheel bearing portion 168 is rotatably mounted by being inserted into an axle 117 formed so as to protrude from the wheel base 128. The inside of the axle 117 penetrates, and the mounting portion 170 of the wheel cover 122 fits into the through portion 169. The mounting portion 170 has a rising portion 172 that protrudes in the outer peripheral direction at the front end portion, and a plurality of cutout portions 171 are formed. With this structure, the front end is distorted by the elasticity of the resin due to the cutout 171, so that even if there is the rising portion 172, the through portion 169 can pass through, and after the penetration, the front end is restored. Axle 1
17, and the large wheel 104 is rotatably attached to a predetermined position by this fixing.

The outer shape of the wheel cover 122 is substantially spherical with the apex of the wheel bearing portion 168 as an apex.
3, which is formed up to the vicinity of the outer peripheral portion, so that safety can be improved. Further, since a space is formed between the recess 173 having the plurality of small hole groups 113a and the wheel cover 122, wind noise can be expected to be reduced.

[0107]

According to the present invention, since the exhaust air from the blower is cleaned by the exhaust filter and the exhaust gas is dispersed and exhausted from a plurality of locations of the cleaner body, the exhaust air can be cleaned and not bothered.

[Brief description of the drawings]

FIG. 1 is an external view of a vertical storage posture of a vacuum cleaner system according to an embodiment of the present invention, in which a vacuum cleaner in a vertical storage posture is set on a charging stand with an external view thereof set side by side; Is shown.

FIG. 2 is an external view showing a cleaning state of the electric vacuum cleaner according to the embodiment of the present invention.

3A and 3B are external views of a vacuum cleaner main body according to the embodiment of the present invention, wherein FIG. 3A is a front perspective view, FIG.
(C) is a front view, and (d) is a right side view.

FIG. 4 is a configuration diagram of parts of the main body of the vacuum cleaner according to the embodiment of the present invention.

FIG. 5 is a central vertical sectional view of the main body of the vacuum cleaner according to the embodiment of the present invention.

FIG. 6 is a rear perspective view showing a state where a power supply unit is inserted into the vacuum cleaner main body according to the embodiment of the present invention.

FIGS. 7A and 7B are explanatory views of a charging unit according to the embodiment of the present invention, wherein FIG. 7A is a rear perspective view of a vacuum cleaner with a rear cover removed, and FIG. FIG.

FIG. 8 is an explanatory diagram showing a flow of exhaust air from the vacuum cleaner main body according to the embodiment of the present invention.

FIG. 9 is a cross-sectional view showing the flow of exhaust air from the main body of the vacuum cleaner according to the embodiment of the present invention.

FIG. 10 is a fragmentary cross-sectional view for explaining exhaust from wheels of the vacuum cleaner main body according to the embodiment of the present invention.

[Explanation of symbols]

1 ... vacuum cleaner system with charging stand, 10 ... vacuum cleaner,
100: vacuum cleaner main body, 101: hose mounting part, 10
4 large wheels, 109 dust collection chamber, 110 blower, 111
.. Power supply unit, 113, first exhaust unit, 114, second exhaust unit, 115, third exhaust unit, 116, exhaust filter, 1
36 ... Exhaust filter storage section, 138 ... Charging pack, 13
8a: cell (rechargeable battery), 152: charging terminal section, 156 ...
Third exhaust passage, 160 power supply unit cooling passage, 164 first exhaust passage, 165 second exhaust passage, 200 suction hose, 300 hand handle, 400 connection pipe, 50
0 ... Suction body, 510 ... Power supply unit, 600 ... Sub handle unit, 700 ... Charge stand, 1000 ... Suction body, 1500 ...
Free connection.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Wataru Yamamoto 1-1-1, Higashitaga-cho, Hitachi City, Ibaraki Prefecture Inside the Electrification Equipment Division of Hitachi, Ltd. F-term (reference) in Machine Research Laboratory, Hitachi, Ltd. 3B006 BA05 BA07 JA02 3B057 CA03 CA12

Claims (10)

[Claims] A vacuum cleaner main body provided with a blower for sucking dust into the dust collecting chamber; a flexible suction hose having one end attached to the vacuum cleaner main body and communicating with the blower; A hand handle attached to the other end of the hose and communicating with the blower, a connecting pipe attached to the hand handle and communicating with the suction hose, and a mouthpiece attached to the connecting pipe and communicating with the connecting pipe. The cleaner body includes an exhaust filter storage unit having an exhaust filter that takes in exhaust gas from the blower and removes dust from the exhaust gas. An electric vacuum cleaner, wherein the electric cleaner is branched into a passage and discharged from exhaust ports formed at a plurality of locations of the cleaner body. 2. A vacuum cleaner body provided with a blower for sucking dust into the dust collection chamber; a flexible suction hose having one end attached to the vacuum cleaner body and communicating with the blower; A hand handle attached to the other end of the hose and communicating with the blower, a connecting pipe attached to the hand handle and communicating with the suction hose, and a mouthpiece attached to the connecting pipe and communicating with the connecting pipe. The vacuum cleaner main body includes an exhaust filter storage unit having an exhaust filter that takes in exhaust air from the blower and removes dust from the exhaust air, and exhaust ports formed at a plurality of locations of the vacuum cleaner main body. An electric vacuum cleaner comprising a plurality of exhaust passages communicating with the exhaust filter storage section. 3. A vacuum cleaner main body provided with a blower for sucking dust into the dust collecting chamber; a flexible suction hose having one end attached to the vacuum cleaner main body and communicating with the blower; A hand handle attached to the other end of the hose and communicating with the blower, a connecting pipe attached to the hand handle and communicating with the suction hose, and a mouthpiece attached to the connecting pipe and communicating with the connecting pipe. The cleaner body is provided with a dust collection chamber detachably provided with the suction hose, the blower disposed behind the dust collection chamber, and a code reel unit disposed behind the blower,
An exhaust filter storage unit disposed below the blower, the exhaust filter storage unit having an exhaust filter that takes in exhaust gas from the blower and removes dust from the exhaust gas, An exhaust cleaner, wherein exhaust gas discharged from the vacuum cleaner is branched into a plurality of exhaust passages and discharged from exhaust ports formed at a plurality of locations of the cleaner body. 4. A vacuum cleaner main body provided with a blower for sucking dust into the dust collecting chamber; a flexible suction hose having one end attached to the vacuum cleaner main body and communicating with the blower; A hand handle attached to the other end of the hose and communicating with the blower, a connecting pipe attached to the hand handle and communicating with the suction hose, and a mouthpiece attached to the connecting pipe and communicating with the connecting pipe. The cleaner body is provided with a dust collection chamber detachably provided with the suction hose, the blower disposed behind the dust collection chamber, and disposed behind the blower, and a plurality of rechargeable batteries. A power supply unit, and an exhaust filter storage unit disposed below the blower. The exhaust filter storage unit receives exhaust air from the blower and removes dust from the exhaust air. Has, vacuum cleaner, characterized in that the discharge from the exhaust port formed at a plurality of positions of the cleaner body by branching the exhaust gas discharged from the exhaust filter housing portion to the plurality of exhaust passages. 5. A vacuum cleaner body provided with a blower for sucking dust into the dust collecting chamber, a flexible suction hose having one end attached to the vacuum cleaner body and communicating with the blower, A hand handle attached to the other end of the hose and communicating with the blower, a connecting pipe attached to the hand handle and communicating with the suction hose, and a mouthpiece attached to the connecting pipe and communicating with the connecting pipe. The vacuum cleaner main body comprises: a dust collection chamber provided with the suction hose detachably provided; the blower disposed behind the dust collection chamber; and an exhaust filter storage section disposed below the blower. A power supply device and a code reel device that are interchangeably attached to the rear of the blower, the power supply device includes a plurality of rechargeable batteries therein, and can be charged; and the exhaust filter storage unit. An exhaust filter that takes in exhaust air from the blower and removes dust from the exhaust air, and diverges exhaust air discharged from the exhaust filter storage unit into a plurality of exhaust passages and at a plurality of locations in the cleaner body. An electric vacuum cleaner characterized by discharging from a formed exhaust port. 6. The vacuum cleaner according to claim 1, wherein the vacuum cleaner main body is disposed below the dust collecting chamber with a pair of large wheels disposed on both sides of the blower. The large wheel is provided with a plurality of openings around a rotation axis of the large wheel, and one of the exhaust passages is formed from a housing surface that supports the large wheel. An electric vacuum cleaner characterized by being an exhaust passage discharged through an opening. 7. The vacuum cleaner according to claim 1, wherein the main body of the vacuum cleaner is arranged below a pair of large wheels arranged on both sides of the blower, and below the dust collection chamber. And a bumper portion provided on both sides of the dust collection chamber, and one of the exhaust passages is an exhaust passage that exhausts from an exhaust port provided in the bumper portion. An electric vacuum cleaner characterized by the above. 8. The vacuum cleaner according to claim 5, wherein the vacuum cleaner body includes a pair of large wheels disposed on both sides of the blower, and a single wheel disposed below the dust collection chamber. One of the exhaust passages is closed when the power supply device is mounted, communicates when the code reel device is mounted, and is exhausted from a discharge port provided in the code reel device. Vacuum cleaner characterized by an exhaust passage. 9. The vacuum cleaner according to claim 1, wherein the main body of the vacuum cleaner is disposed below the dust collecting chamber with a pair of large wheels disposed on both sides of the blower. One large wheel, and bumpers provided on both sides of the dust collection chamber, the large wheel has a plurality of openings around its rotation axis, and the exhaust passage connects the large wheel. A first exhaust passage that is discharged from a supporting housing surface through an opening of the large wheel;
An electric vacuum cleaner comprising a second exhaust passage for exhausting air from an exhaust port provided in the bumper portion. 10. The vacuum cleaner according to claim 5, wherein the vacuum cleaner body includes a pair of large wheels disposed on both sides of the blower, and a single wheel disposed below the dust collection chamber. A swivel wheel, and bumper portions provided on both sides of the dust collection chamber, the large wheel includes a plurality of openings around a rotation axis thereof, and the exhaust passage extends from a housing surface supporting the large wheel. A first exhaust passage discharged through an opening of the large wheel;
A second exhaust passage that exhausts from an exhaust port provided in the bumper portion, and is closed when the power supply device is mounted;
A vacuum cleaner having a third exhaust passage communicating with the cord reel device when the cord reel device is mounted and exhausting from a discharge port provided in the code reel device.