JP3285030B2 - Electric vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner used in ordinary households.

[0002]

2. Description of the Related Art A conventional vacuum cleaner will be described with reference to FIGS. First, as shown in FIGS. 27 and 28, the cleaner main body 1 and the suction body 2 are connected via a hose 3 and an extension pipe 4. Further, FIG. 28 shows a cross section of the cleaner main body 1; And a cord reel room 9 for accommodating a cord reel 8 accommodating a power blower 5 and a power reel 7 for accommodating a power supply wire 7. Provided.

Also, large wheels 11 as shown in FIG. 29 are provided on both sides of the cleaner body 12, and
Some are provided so that 3 does not project.

[0004]

In such a conventional configuration, when the cleaner body 1 is pulled during cleaning, the wheels 10
When one side gets on an obstacle such as a cushion, the balance may be lost and the cleaner main body 1 may roll over, and each time the cleaner main body 1 needs to be re-raised.

[0005] Further, as shown in FIG.
In order to prevent the rollover 2 from overturning, some of the cleaners have large wheels 11 on the side surfaces of the cleaner main body 12 so as to form the outermost contour of the cleaner main body 12, but also when the cleaner main body 12 is pulled. When the chair or the like is caught between the large wheel 11 and the hose 3 and cannot be moved, or once rolled over, the side surface of the large wheel 11 comes into contact with the floor, making it difficult to use as in the case of the above-described vacuum cleaner body 1.

Further, it is necessary to house an electric blower, a power supply wire and the like in the body 13 so as not to protrude from the large wheels 11, and to provide a space between the large wheels 11 provided on both sides of the cleaner body 12. The vacuum cleaner main body 12 needs to be enlarged, for example, to have a large width or to increase the diameter of the large wheel 11.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and makes it difficult for the cleaner main body to roll over, and even when the cleaner rolls, the cleaner main body can be rotated so that the wheels are on the floor ground side. Moreover, an object of the present invention is to obtain a compact, lightweight, and easy-to-use vacuum cleaner.

[0008]

According to the present invention, in order to achieve the above object, the suction force of a cleaner body having a built-in electric blower for generating a suction force is applied to the suction body through an extension pipe and a hose. Suction the dust on the cleaning surface, collect the dust in the dust collecting part provided in the cleaner body , provide a pair of wheels for moving the floor on the side of the cleaner body, make the wheels of the cleaner body a rolling surface, The center of gravity of the cleaner body is provided such that the cleaner body rotates in a direction in which the pair of wheels contact the floor surface even when the cleaner body is tilted so that the rolling surface contacts the floor surface.

This makes it difficult for the cleaner body to roll over,
In addition, the cleaner main body can be rotated so that the wheels are on the ground contact side even when the vehicle rolls over, and a compact, lightweight, and easy-to-use vacuum cleaner can be obtained.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a cleaner body having a built-in electric blower for generating a suction force, and a vacuum cleaner main body provided with a suction force of the electric blower through an extension pipe and a hose. A suction body for sucking dust on a cleaning surface, a dust collecting unit provided on the cleaner body for collecting dust, and a pair of wheels for moving a floor provided on a side surface of the cleaner body ; Even if the wheel of the cleaner body is a rolling surface and the cleaner body is tilted so that the rolling surface is in contact with the floor surface, the cleaner body rotates and returns to the direction in which the pair of wheels touches the floor surface. <br/> are those urchin provided the center of gravity of the cleaner body, the cleaner main body is hard to roll, and the vacuum cleaner body as the wheel even overturned is the floor surface ground side based on pivots Back it can, moreover, small size, light weight, and it is possible to obtain a good vacuum cleaner and easy to use .

According to a second aspect of the present invention, in the first aspect of the present invention, the cleaner is perpendicular to the moving direction of the cleaner body.
The cross-sectional shape formed from the cleaner body and wheels in terms of surface,
It has a substantially circular or elliptical shape, and moves the vacuum cleaner body
Even if it is longer in the longitudinal direction than the
It can rotate on the provided rolling surface.

According to a third aspect of the present invention, a suction force is generated.
A vacuum cleaner body having a built-in electric blower, and the electric blower
Dust on the surface to be cleaned through the extension pipe and hose with the suction force of
A suction body for sucking air, and dust provided on the cleaner body.
Dust collectors, and provided at both ends of the bottom surface of the cleaner body.
A pair of wheels for moving the floor surface, the side of the cleaner body
The surface is a rolling surface, and the vacuum cleaner body is the rolling surface on the floor.
Even if tilted to touch, the pair of wheels touches the floor
Vacuum cleaner body so that the cleaner body rotates in the direction and returns
The center of gravity of the
The vacuum cleaner body so that the wheels are on the ground contact side even if
Can be rotated back to its original position, and it is small and lightweight
And a convenient vacuum cleaner can be obtained.
You.

[0013] The invention according to claim 4 is the invention according to claim 3.
In the described invention, it is orthogonal to the moving direction of the cleaner body
The cross-sectional shape of the surface is approximately circular or approximately elliptical, and cleaning
Even if the machine body is elongated in the longitudinal direction with respect to the traveling direction, cleaning
It can be turned back on the rolling surface provided on the side of the machine body.
Can be.

According to a fifth aspect of the present invention, a suction force is generated.
A vacuum cleaner body having a built-in electric blower, and the electric blower
Dust on the surface to be cleaned through the extension pipe and hose with the suction force of
A suction body for sucking air, and dust provided on the cleaner body.
Moving the floor to the side of the vacuum cleaner body
Rolls the wheel of the cleaner body
Surface so that the rolling surface contacts the floor surface
Even when inclined, the pair of wheels are cleaned in the direction in which they touch the floor.
Provide the center of gravity of the cleaner body so that the machine body rotates, and
The shape formed by the rolling surface and the cleaner body should be approximately spherical.
Or a roughly spherical polyhedron.
Even if the vacuum cleaner body is tilted in all directions,
The cleaner body can rotate in the direction that the floor touches the ground.
You. The substantially spherical shape here does not have to be a perfect sphere
Even if a part of the shape differs from the substantially spherical shape,
Turns to the ground contact side when the body leans or falls
What is necessary is just to have a structure.

According to a sixth aspect of the present invention, in the invention of the fifth aspect , a protrusion such as a handle is formed on at least an upper surface of the cleaner body, and the cleaner body including the protrusion is provided.
The outer shape formed by the wheels is a substantially spherical shape or a substantially spherical polyhedron, and the protrusion can be formed on the handle portion or the like without increasing the size of the cleaner body.

[0016] The invention described in claim 7 is the same as in claim 5 or 5.
In the invention described in Item 6 or 6, the rotation axis is inclined upward on the both sides of the main body of the cleaner inward from substantially horizontal with respect to the floor surface, and is formed of a polyhedron having a substantially hemispherical or substantially hemispherical cross section. It is constituted by wheels, and can travel even when the cleaner body is inclined without increasing the size of the wheels.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) As shown in FIGS. 1 and 2, the cleaner body 20 has a built-in electric blower 21 for generating a suction force, and sucks dust by the suction force generated by the electric blower 21. The mouthpiece 22 is provided via a hose 23 and an extension tube 24. Hose 2
3 is a connection pipe 25 detachably engaged with the cleaner body 20 and a tip pipe 26 detachably engaged with the extension pipe 24.
Are provided on both sides of the cleaner main body 20.
Is rotatably provided. The connecting pipe 25 and the tip pipe 26 provided at both ends of the hose 23 are
A rotation mechanism is built in so that it can rotate freely by 60 degrees.

As shown in FIG. 2, an electric blower room 28 for accommodating the electric blower 21 is provided above, and a battery 2 is provided below.
A battery chamber 30 for housing the battery 9 is provided, and dust passing through the hose 23 is collected in a dust collecting bag 32 detachably provided in a dust collecting section 31 provided in a front portion of the electric blower chamber 28.

Here, in this embodiment, the dust collecting bag 32 for collecting dust is provided in the cleaner main body 20. The dust collecting bag 32 is provided between the air inlet 22 and the ventilation passage 21 from the electric blower 21. It is sufficient if there is a means for collecting crab dust.
Even if the presence or absence of 2 and the form of the dust collecting section 31 are different, there is no problem at all.

Next, as shown in FIG.
The battery 29 is held by a right body 33 and a left body 34. This embodiment shows a configuration in which the cleaner main body 20 is divided into left and right, but the dividing direction may be any direction. In short, it is only necessary that the electric blower 21 and the battery 29 can be held inside.

Further, as shown in FIG. 3, the vacuum cleaner main body 20 has a substantially spherical cross section, and is a part of the outer shape of the right main body 33 and the left main body 34. Wheel 2
7 also has a substantially spherical outer shape. As shown in FIGS. 4 and 5, in the wheel 27, a first rolling surface (rolling surface) is formed on a side surface portion other than the floor contact portion 35.
As shown in FIG. 5, the right main body 33 or the left main body 34 also has a second rolling surface 37. Here, of the floor contacting portion 35, a portion projecting from the floor 44 and actually contacting the floor with the floor at that time is referred to as a floor setting point 35a (FIG. 2).

Of course, since it is an actual grounding portion of the floor grounding portion 35 formed on the outer peripheral end surface of the wheel 27 that is rolling and grounding on the floor, it changes every time. As shown in FIG. 2, it is a point that always comes to the lowermost end of the cleaner body 20 when the cleaner body 20 is in a normal state. Here, the first rolling surface 36 and the second rolling surface 37 need not be spherical, as shown in FIGS. 6 and 7, but may be polygonal rolling surfaces 38 or partially flat surfaces. 39 may be provided, and it is only necessary that at least a part of the side surface has a rolling surface.

In the above configuration, as shown in FIG. 5, the center of gravity of the cleaner body 20 is brought into contact with the first rolling surface 36 of the wheel 27 or the second rolling surface 37 of the right body 33 or the left body 34 in contact with the floor. The ground contact point 35 of the wheel 27
a of the vacuum cleaner main body 20 so that a rotates to the floor side.
40 is provided near the approximate center line 41 of the cleaner main body 20 and on the bottom surface 44 side of the cleaner main body 20 from an intersection 43 between the rolling surface 37 and a normal 42 from the ground contact portion.

The operation of the above configuration is as follows.

Even when the cleaner body 20 is tilted so that the first rolling surface 36 or the second rolling surface 37 is in contact with the floor, the floor contact point 35a of the wheel 27 rotates to the floor contacting side. By providing the center of gravity G40 of the cleaner main body 20 as described above, as shown in FIG.
The cleaner main body 20 rotates to the arrow A side without rolling over even when the cleaner floats from the floor surface. Also, as shown in FIG. Since it is at the position, it turns in the direction of arrow B, and the floor contact point 35a of the wheel 27 is on the floor contact side.

Also, as shown in FIG.
By making the battery 29 provided on the bottom surface 44 side of the electric blower 21 heavier than the electric blower 21, the center of gravity G40 of the cleaner main body 20 does not need to be mounted with another weight or the like, and the configuration of decentering the position of the center of gravity can be easily achieved. Further, by protruding and arranging the right main body 33 and the left main body 34 in the space provided on the inner surface of the wheel 27, the battery chamber 30 can be secured wide in the width direction, so that more batteries 29 can be stored. Also in the electric blower room 28, it is possible to sufficiently secure an exhaust space for efficiently passing exhaust gas to the side of the electric blower 21.

Further, since the connection pipe 25 and the tip pipe 26 provided at both ends of the hose 23 are rotatable, even if the cleaner body 20 inclines and rolls, the cleaner body 20 does not roll over and returns to its original position. Even if it makes one rotation, the hand hose and the like are not twisted and the burden is imposed on the handle.

Next, as shown in FIG.
A third rolling surface 46 provided on the side surface of the cleaner body 20 is provided so as to protrude from the bottom surface 44 of the cleaner body 20.
When turning to the bottom surface 44 side from the state of touching the floor surface,
The floor contact surface 47 of the wheel 45 over the side surface of the wheel 45
Are set so that they touch each other.

In FIGS. 3, 6 and 9, the main body 20 of the cleaner is viewed in the direction of an arrow perpendicular to the direction of travel, but the shape parallel to the direction of travel is spherical or cylindrical. In other words, it is only necessary that the rolling surface that attempts to return to the normal state when the cleaner main body 20 is inclined be at least a part of the side surface of the cleaner main body 20.

The operation of the above configuration is as follows.

Since the wheels 45 can be arranged on the bottom surface 44 and the outer diameter of the wheels 45 can be reduced, the size of the cleaner main body 20 can be reduced and made compact.

Further, as shown in FIG. 10, the rotation axis 48 is inclined inwardly above the floor surface toward the inside on both sides of the cleaner body 20 so that the cross-sectional shape is substantially hemispherical or substantially hemispherical. A wheel 49 made of a planar polyhedron is provided.

The operation of the above configuration is as follows.

As described above, that is, as shown in FIG. 3, when the wheel 49 is provided with the rotation axis of the wheel 27 being horizontal to the floor surface with the wheel width W secured,
In order to further increase the size of the components to be mounted in the cleaner main body 20, which becomes the hatched portion 50, the wheel width W must be increased as in the virtual outline 51 in order to secure the wheel width W. On the other hand, in the case where the rotation axis 48 is eccentric and the wheels 49 are provided, the hatched portion 50 can be used for the internal component storage space, so that it is not necessary to increase the size to the virtual outer shell 51.

Further, as shown in FIG. 11, even if the cleaner main body 20 is tilted, the single wheel traveling on the side surface of the wheel 49 or the fourth rolling surface 52 of the cleaner main body 20 connected to the wheel 49 is performed. By providing, it is possible to return to the normal position even from the overturned state.

Next, as shown in FIG. 12, the arrangement of a plurality of or single batteries 29 built in the cleaner main body 20 is such that the plurality of batteries 29 are connected to the center line 41 of the cleaner main body 20. Even when the vacuum cleaner body 20 is eccentrically disposed in a state or a single battery (not shown) is eccentrically arranged and the cleaner body 20 is tilted so that the rolling surface is in contact with the floor surface, the floor grounding point 35a of the wheel 27 is grounded. Cleaner body 20 so that it rotates to the side
The center of gravity is provided.

The purpose of the present invention is to decenter the center of gravity of the cleaner main body 20 in any direction with respect to the center line 41 of the cleaner main body 20. For example, one of the electric blower 21 and the battery 29 or the entire built-in component can be used. The center of gravity may be decentered in any direction with respect to the approximate center of the cleaner body 20.

The operation of the above configuration is as follows.

Even if the vacuum cleaner main body 20 rolls over in a state where the normal 42 of the second rolling surface 37 of the vacuum cleaner main body 20 and the center line 41 substantially coincide with each other, the center of gravity Ga53 of the battery 29 is aligned with the center line 41. Since the cleaner body 20 is eccentric, the cleaner body 20 always rotates in the direction of arrow C, so that the cleaner body 20 does not remain overturned.

Embodiment 2 Next, a second embodiment of the present invention will be described with reference to FIG.

As shown in FIG. 13, a projection 54 is provided on the upper part of the cleaner body 20, and wheels 55 are rotatably disposed on both side surfaces. It is located near the outline of the shape.

As shown in FIG. 14, when the cleaner main body 20 is turned sideways and the protrusion 54 and the wheels 55 are in contact with the floor, the contact 56 of the wheels 55 with respect to the center line 41 of the cleaner main body 20. The center of gravity Gb58 of the cleaner body 20 is provided outside the intersection with the perpendicular 57 of the vacuum cleaner.

The operation of the above configuration is as follows.

In FIG. 14, the cleaner main body 20 in the overturned state has the center of gravity G with the contact point 56 of the wheel 55 as a pivot point.
The wheel 55 rotates in the direction of arrow d on the b58 side, and the wheel 55 can return to the floor contact state.

Third Embodiment Next, a third embodiment of the present invention will be described with reference to FIG.

As shown in FIG. 15, a front cover 59 for detachably connecting to the connection pipe 25 provided at the end of the hose 23 is provided at the front of the cleaner body 20, and wheels 60 are provided on both sides. The center of gravity Gc6 of the cleaner body 20 is provided rotatably.
1 is below a horizontal line 62 of the wheel 60 and a vertical line 63
It is provided more rearward.

The operation of the above configuration is as follows.

As shown in FIG. 16, since the center of gravity Gc61 of the cleaner main body 20 is located behind and below the wheels 60, the hose 23 rotates in the direction of the arrow E. , The hose 23 slips on the floor,
The vacuum cleaner body 20 itself does not come into contact with the floor surface, etc.
It can move lightly at 0.

Further, when the hose 23 attached to the cleaner body 20 is detached, the hose 23 rotates in the direction of arrow E.
When the hose 23 is connected to the cleaner body 20 again, the front cover 59 is pivoted upward so that the hose 23 can be easily attached.

(Fourth Embodiment) Next, a fourth embodiment of the present invention will be described with reference to FIGS.

As shown in FIG. 17, the cleaner main body 20 comprises:
It incorporates an electric blower (not shown) and a secondary battery (not shown) for charging. The charging stand 66 is for charging the secondary battery of the cleaner main body 20, and is provided with an introduction portion 67 for moving from the floor surface to an upper portion of the charging stand 66 by the wheels 27 of the cleaner main body 20 before and after the charging stand 66. Is provided.

With the above structure, the charging terminal (not shown) of the cleaner body 20 moved to the upper part of the charging stand 66 and the charging stand 66
Is connected, and charging of the secondary battery is started. As shown in FIG. 18, after the cleaner main body 20 is set by moving the cleaner main body 20 to the charging stand 66 from the introduction part 67, the hose 23, the extension pipe 24, and the suction body 22 are stored in a connected state. Thereby, cleaning can be performed without lifting the cleaner main body 20 from cleaning to charging.

Fifth Embodiment Next, a fifth embodiment of the present invention will be described with reference to FIG.

As shown in FIG. 19, an electric blower (not shown) and a secondary battery (not shown) for charging are built in the cleaner main body 20. Hose 23 connected to cleaner body 20 and mouthpiece 2 connected via extension tube 24
2 is detachably connected to a floor-type charging stand 68.

According to the above configuration, the charging terminal (not shown) of the mouthpiece 22 moved to the upper part of the floor type charging stand 68 and the charging terminal connection part (not shown) of the floor type charging stand 68 are connected, and Charging of the battery is started. Hose 2 on vacuum cleaner body 20
3. By storing the mouthpiece 22 in the floor-type charging stand 68 with the extension tube 24 connected, cleaning can be performed without lifting the cleaner body 20 from cleaning to charging. it can.

(Embodiment 6) Next, a sixth embodiment of the present invention will be described with reference to FIG.

As shown in FIG. 20, the cleaner main body 20 comprises a right main body 33 and a left main body 34, in which an electric blower room 28 for accommodating the electric blower 21 and a code reel room 70 for accommodating the power supply wire 69. And the right body 3
3. On both sides of the left body 34, the wheels 27 are rotatably held. In the drawings, components having the same reference numerals as those in the above-described embodiment have the same structure, and thus description thereof will be omitted.

With the above configuration, the center of gravity Gd71 of the cleaner body 20 when the power supply wire 69 and the electric blower 21 are installed is:
It is located on the bottom surface 44 side below the rotation center 72 of the wheel 27. In the present embodiment, the electric blower 21 is provided on the bottom surface 44 side. However, the structure may be opposite to that of the code reel chamber 70, and the point is that the center of gravity is adjusted so that the center of gravity Gd71 comes to the illustrated position. I just need.

The operation of the above configuration is as follows.

As in the first embodiment, the center of gravity Gd7
By defining the position 1, the cleaner body 20 can be turned back to the floor contact state from the state in which the first rolling surface 36 or the like provided on the side surface is inclined to contact the floor surface.

Further, as shown in FIG.
Is pulled out from the cleaner body 20, the weight of the power supply wire 69 in the cleaner body 20 is reduced, and
The center of gravity Ge73 moves to the bottom surface 44 side from the center of gravity Gd71, so that the center of gravity can be more stably lowered during running, and the cleaner body 20 can also be harder to fall even if only one of the wheels 27 rides on an obstacle. Can be.

FIGS. 22 and 23 show other arrangements of the electric blower chamber 28 and the cord reel chamber 70. The center of gravity Gf74 and the center of gravity Gg75 are, as in FIG. It is located on the side. Therefore, in the same manner as described above, even if the cleaner main body 20 rolls, it can move back to the floor ground state and return, and by pulling out the power supply wire 69, the center of gravity can be further reduced.

(Embodiment 7) Next, a seventh embodiment of the present invention will be described with reference to FIGS. In the drawings, the components having the same reference numerals as those in the above-described embodiment have the same structure, and the description thereof will be omitted.

As shown in FIG. 24, the power supply wire 69 built in the cleaner main body 20 is provided behind the cleaner main body 20. Further, as shown in FIG. 25, the power supply wire 69 is drawn out from the vicinity of the center of the wheel 27.

The operation of the above configuration is as follows.

In FIG. 24, when the cleaner main body 20 is pulled around during cleaning, even if the cleaner main body 20 rides on an obstacle or the like and is turned 360 degrees in the lateral direction, the power supply cable 6 is turned off.
Since 9 is located behind the cleaner main body 20, it is possible to prevent the vehicle from getting on.

In FIG. 25, when the cleaner body 20 moves or rotates, the power supply cable 69 is moved from the center of the wheel 27 to the power supply cable 69.
As described above, it is possible to make it difficult to get on the power supply wire 69 and the like as described above.

Eighth Embodiment Next, an eighth embodiment of the present invention will be described with reference to FIG. In the drawings, components having the same reference numerals as those of the above-described embodiment have the same structure, and thus description thereof will be omitted.

As shown in FIG. 26, the cleaner body 20
An electric blower chamber (not shown) for housing an electric blower (not shown) is provided inside, and wheels 27 are rotatably held on both sides.

The storage base 76 supports and fixes the cleaner main body 20 when stored, and further includes a cord reel base 77 for storing a power supply wire 69 for supplying power to the electric blower. Cleaner body 2 which is the other end of the
The 0 side is held and fixed.

The operation of the above configuration is as follows.

By removing the space for accommodating the power supply wire 69 from the inside of the cleaner main body 20, the only heavy thing for adjusting the center of gravity Gh78 of the cleaner main body 20 is the electric blower.
Adjustment of the center of gravity can be facilitated.

[0074]

As described above, according to the first aspect of the present invention, a cleaner main body having a built-in electric blower for generating a suction force, an extension pipe and a hose using the suction force of the electric blower are provided. and suction body for sucking dust from a cleaning surface through the a dust collection unit for dust collecting dust provided in the cleaner main body, a pair of wheels of the cleaner for floor movement provided on the side of the body Provided, the wheel of the cleaner body as a rolling surface, even if the cleaner body is inclined such that the rolling surface is in contact with the floor surface, the cleaner body rotates in a direction in which the pair of wheels touches the floor surface.
The center of gravity of the vacuum cleaner body is provided to return to the original ,
The vacuum cleaner body is difficult to roll over, and even if it rolls over, the vacuum cleaner body can rotate and return so that the wheels are on the ground contact side, and it is small, lightweight, and easy-to-use electricity You can get a vacuum cleaner.

According to the second aspect of the present invention, the cleaning
The cleaner body and the car in a direction perpendicular to the moving direction of the cleaner body.
The cross-sectional shape formed by the ring is approximately circular or approximately elliptical.
The cleaner body in the longitudinal direction with respect to the direction of travel.
Even if it does, it rotates on the rolling surface provided on the side of the cleaner body
can do.

According to the third aspect of the present invention, the suction
Vacuum cleaner body with built-in electric blower that generates attractive force
Note that the electric blower is used to
A mouthpiece for sucking dust on a cleaning surface, and
A dust collecting portion provided on the body for collecting dust, and a bottom of the cleaner body
A pair of wheels for moving the floor provided at both ends of the surface.
The side of the remover body is a rolling surface, and the cleaner body
The pair of wheels may be in contact with the floor even if the
So that the main body of the vacuum cleaner rotates in the direction of touching the ground and returns
The center of gravity of the main body of the vacuum cleaner is provided, and the main body of the vacuum cleaner rolls over
So that the wheels are on the ground contact side even if rolled over
The vacuum cleaner body can rotate and return to its original position, and
To obtain a compact, lightweight, and easy-to-use vacuum cleaner
Can be.

According to the fourth aspect of the present invention, the cleaning
The cross section of the surface perpendicular to the moving direction of the
Is a substantially elliptical shape, and the main body of the vacuum cleaner is
Rolls on the side of the cleaner body
It can return to its original position by turning on the beveled surface.

According to the fifth aspect of the present invention, the suction
Vacuum cleaner body with built-in electric blower that generates attractive force
Note that the electric blower is used to
A mouthpiece for sucking dust on a cleaning surface, and
A dust collecting unit provided on the body for collecting dust, and a side of the cleaner body
Surface with a pair of wheels for moving the floor surface, the cleaner body
The wheel is a rolling surface, and the cleaner body is the rolling surface
The pair of wheels touches the floor even if
Center of gravity of the cleaner body so that the cleaner body rotates in the direction
A shape formed from the rolling surface and the cleaner body
Into a roughly spherical or roughly spherical polyhedron.
The cleaner body tilts in all directions, not just the side of the body.
The cleaner body rotates in the direction that the wheels touch the floor.
Can be The substantially spherical shape here is a perfect sphere
And some of them are different from the substantially spherical shape
Also, if the vacuum cleaner body is tilted or falls, the floor is grounded
What is necessary is just to have the structure rotated to the side.

According to the invention of claim 6, a protrusion such as a handle is formed on at least the upper surface of the cleaner body,
The outer shape formed by the cleaner body including the protruding body and the wheels is a substantially spherical shape or a substantially spherical polyhedron, and the protruding body can be gripped without increasing the size of the cleaner body. Can be formed.

According to the seventh aspect of the present invention, the rotation axis is inclined inward on both sides of the main body of the cleaner inwardly above the floor and substantially horizontally, and the cross-sectional shape is substantially hemispherical or substantially hemispherical. Since the wheels are formed of hemispherical polyhedrons, it is possible to travel even when the cleaner body is inclined without increasing the size of the wheels.

[Brief description of the drawings]

FIG. 1 is a perspective view of a vacuum cleaner according to a first embodiment of the present invention.

FIG. 2 is a side sectional view of a vacuum cleaner main body of the vacuum cleaner.

FIG. 3 is a cross-sectional view of the main body of the vacuum cleaner.

FIG. 4 is a front view of the main body of the vacuum cleaner in an inclined state.

FIG. 5 is a front view of the vacuum cleaner body of the vacuum cleaner in a state in which the vacuum cleaner is turned over.

FIG. 6 is a front view of another example of the main body of the vacuum cleaner in a tilted state.

FIG. 7 is a front view of another example of the main body of the vacuum cleaner.

FIG. 8 is a cross-sectional view of another example of the cleaner main body of the electric vacuum cleaner in an overturned state.

FIG. 9 is a front view of another example of the vacuum cleaner main body of the vacuum cleaner.

FIG. 10 is a front view of another example of the main body of the vacuum cleaner.

FIG. 11 is a front view of the main body of the vacuum cleaner in a tilted state.

FIG. 12 is a cross-sectional view of another example of the vacuum cleaner main body of the electric vacuum cleaner in an overturned state.

FIG. 13 is a front view of the main body of the vacuum cleaner of the second embodiment of the present invention.

FIG. 14 is a cross-sectional view of the vacuum cleaner body of the electric vacuum cleaner in a state in which the vacuum cleaner is turned over.

FIG. 15 is a side view of a main part of a vacuum cleaner according to a third embodiment of the present invention.

FIG. 16 is a side view of a main part of the vacuum cleaner in a use state.

FIG. 17 is a side view of a main part of a vacuum cleaner according to a fourth embodiment of the present invention.

FIG. 18 is a perspective view of the electric vacuum cleaner.

FIG. 19 is a perspective view of a vacuum cleaner according to a fifth embodiment of the present invention.

FIG. 20 is a cross-sectional view of a vacuum cleaner main body of a vacuum cleaner according to a sixth embodiment of the present invention.

FIG. 21 is a sectional view of another example of the vacuum cleaner main body of the electric vacuum cleaner.

FIG. 22 is a sectional view of another example of the vacuum cleaner main body of the vacuum cleaner.

FIG. 23 is a sectional view of another example of the cleaner main body of the electric vacuum cleaner.

FIG. 24 is a partially cutaway side view of the main body of the vacuum cleaner of the seventh embodiment of the present invention.

FIG. 25 is a side view of the vacuum cleaner.

FIG. 26 is a partial sectional view of a vacuum cleaner according to an eighth embodiment of the present invention.

FIG. 27 is a perspective view of a conventional vacuum cleaner.

FIG. 28 is a sectional view of a vacuum cleaner main body of the vacuum cleaner.

FIG. 29 is a perspective view of another example of the conventional vacuum cleaner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 20 Vacuum cleaner main body 21 Electric blower 22 Suction body 23 Hose 24 Extension pipe 27 Wheel 31 Dust collection part 36 1st rolling surface (rolling surface) 40 Center of gravity G

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-97731 (JP, A) JP-A-8-150105 (JP, A) JP-A-5-34491 (JP, A) 50752 (JP, U) Actually open 58-37856 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47L 5/00-9/00

Claims (7)

(57) [Claims] 1. A cleaner body having a built-in electric blower for generating a suction force, a suction body for sucking dust on a surface to be cleaned through an extension pipe and a hose by the suction force of the electric blower, and comprising a dust collection unit for dust collecting dust provided the opportunity body, a pair of wheels for floor movement provided on the side of the cleaner body, and the cleaner wheel rolling surface of the main body, the cleaner main body is the Even if the rolling surface is inclined so as to be in contact with the floor, the cleaner body rotates in a direction in which the pair of wheels touches the floor.
Vacuum cleaner provided with a center of gravity of the cleaner body so as to return to the original. 2. A front surface perpendicular to a moving direction of the cleaner body.
The cross-sectional shape formed by the cleaner body and wheels is approximately circular.
The vacuum cleaner according to claim 1, wherein the vacuum cleaner has a substantially elliptical shape . 3. A built-in electric blower for generating a suction force.
The vacuum cleaner main body, the extension pipe by the suction force of the electric blower and
Suction body for sucking dust on the surface to be cleaned through a hose
A dust collector provided on the cleaner body for collecting dust;
A pair of vehicles for moving the floor provided at both ends of the bottom of the cleaner body
A wheel is provided, and the side surface of the cleaner body is a rolling surface,
Even if the machine body is tilted so that the rolling surface touches the floor,
The main body of the vacuum cleaner rotates so that the pair of wheels touch the floor
Vacuum cleaner with the center of gravity of the vacuum cleaner body to return to the original position . 4. A vacuum cleaner vacuum cleaner according to claim 3, wherein the substantially circular or substantially elliptical surface of the cross section perpendicular to the moving direction of the body. 5. A cleaner body having a built-in electric blower for generating a suction force, a suction body for sucking dust on a surface to be cleaned through an extension pipe and a hose by the suction force of the electric blower, and A dust collector provided in the cleaner main body for collecting dust, and a pair of wheels for moving a floor surface on a side surface of the cleaner main body,
The cleaner the wheel rolling surface of the body, also the rolling surface cleaner body is inclined so that contact with the floor surface, cleaning as the cleaner body in a direction in which the pair of wheels to contact with the floor surface is rotated the center of gravity of the machine body is provided, or the rolling surface and the cleaner body
An electric vacuum cleaner in which the shape formed is a substantially spherical shape or a substantially spherical polyhedron. 6. A cleaner or other protruding body such as a handle is formed on at least an upper surface of the cleaner body, and the cleaner body including the protruding body and a wheel are provided.
6. The vacuum cleaner according to claim 5, wherein the outer shape formed from the shape is a substantially spherical shape or a substantially spherical polyhedron. 7. A cleaning device comprising wheels made of a polyhedron having a substantially hemispherical shape or a substantially hemispherical shape in cross section, with the rotation axis inclining inward on both sides of the cleaner body inwardly above the floor surface and substantially horizontally above the floor surface. The electric vacuum cleaner according to claim 5 or 6, wherein