U.S. patent application number 11/407867 was filed with the patent office on 2006-10-26 for autonomous electric cleaner and electric cleaner.
This patent application is currently assigned to Funai Electric Co., Ltd.. Invention is credited to Kazuya Sudo.
Application Number | 20060236492 11/407867 |
Document ID | / |
Family ID | 37185316 |
Filed Date | 2006-10-26 |
United States Patent
Application |
20060236492 |
Kind Code |
A1 |
Sudo; Kazuya |
October 26, 2006 |
Autonomous electric cleaner and electric cleaner
Abstract
An electric cleaner or an autonomous electric cleaner that
prevents scattering of garbage and dust towards the back and both
sides thereby enhancing cleaning rate (absorbing rate) is provided.
In the autonomous electric cleaner 1 having an absorbing port 2b
for absorbing garbage and dust arranged at the bottom surface of
the main body 2 facing the floor or the cleaning surface, the back
blade 11 and the side blades 12 that contact the floor and receive
the garbage and dust without allowing them to pass are arranged at
the back part and both the left and right sides, respectively, of
the absorbing port 2b.
Inventors: |
Sudo; Kazuya; (Osaka,
JP) |
Correspondence
Address: |
OSHA LIANG L.L.P.
1221 MCKINNEY STREET
SUITE 2800
HOUSTON
TX
77010
US
|
Assignee: |
Funai Electric Co., Ltd.
Daito-shi
JP
|
Family ID: |
37185316 |
Appl. No.: |
11/407867 |
Filed: |
April 19, 2006 |
Current U.S.
Class: |
15/319 |
Current CPC
Class: |
A47L 11/4044 20130101;
A47L 11/24 20130101; A47L 11/4041 20130101; A47L 11/4061 20130101;
A47L 11/4072 20130101; A47L 11/4038 20130101; A47L 2201/00
20130101 |
Class at
Publication: |
015/319 |
International
Class: |
A47L 5/00 20060101
A47L005/00 |
Foreign Application Data
Date |
Code |
Application Number |
Apr 19, 2005 |
JP |
2005-121627 |
Claims
1. An autonomous electric cleaner that autonomously travels and
cleans a cleaning surface, the cleaner comprising: an absorbing
port facing the cleaning surface to absorb garbage and dust; and a
rotating brush arranged at the absorbing port and rotated to sweep
the garbage and dust into the absorbing port, wherein a blade that
contacts the cleaning surface and receives the garbage and dust is
arranged in the vicinity of a back part of the absorbing port
parallel to the absorbing port and the rotating brush across the
entire width of the absorbing port perpendicular to a traveling
direction, and blades are arranged in the vicinity of both sides of
the absorbing port so that a distance with respect to each other
increases towards a front part, and arranged slightly slighted from
a perpendicular direction and spaced apart by a microscopic gap
that allows air to pass through with respect to the blade arranged
at the back part.
2. An electric cleaner that absorbs garbage and dust from an
absorbing port facing a cleaning surface, wherein the cleaner is
provided with receiving wall bodies respectively positioned at a
back part and both sides of the absorbing port so as to contact the
cleaning surface and receive the garbage and dust.
3. The electric cleaner according to claim 2, wherein the absorbing
port is provided with a rotating cleaning body that rotates and
sweeps the garbage and dust into the absorbing port.
4. The electric cleaner according to claim 2, wherein the receiving
wall body at the back part of the absorbing port is disposed in a
direction perpendicular to a traveling direction and parallel to
the absorbing port, and the receiving wall bodies on both sides of
the absorbing port is disposed in a slanted manner so that a
distance with respect to each other increases towards a front
part.
5. The electric cleaner according to claim 2, wherein the receiving
wall body at the back part of the absorbing port and the receiving
wall bodies at both sides of the absorbing port are positioned
distant from each other with a microscopic gap therebetween that
allows air to pass through.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to an autonomous electric
cleaner and an electric cleaner that absorbs garbage and dust on a
cleaning surface to clean the cleaning surface.
[0003] 2. Description of the Related Art
[0004] The electric cleaner that absorbs garbage and dust on the
cleaning surface such as floor to clean the cleaning surface
includes an autonomous type in which the cleaner autonomously
travels by the drive of the motor, and a non-autonomous type in
which the cleaner is pulled by a person and the like. In either
electric cleaner, garbage and dust on the cleaning surface are
absorbed along with external air from the absorbing port facing the
cleaning surface by the suction force generated by an electric air
blower made up of a motor and a fan, where the garbage and dust are
then separated from the external air and captured and collected by
a dust collecting body made up of a filter and the like, and the
cleaned air is exhausted to the outside.
[0005] The above described electric cleaner includes that in which
a rotating cleaning body that collects the garbage and dust by
rotating is arranged at the absorbing port, and a blade, a brush
and the like is arranged at the front and the back of the absorbing
port so as to contact the cleaning surface (refer to e.g., patent
article 1, 2 below). Further, an electric cleaner has been provided
in which two rotating cleaning bodies are arranged in the front and
back direction at the absorbing port, a sweep-out device is
arranged at the center of the absorbing port and between the
rotating cleaning bodies, and a soft fiber contacting the cleaning
surface is arranged at the distal end of the sweep-out device
(refer to e.g., patent article 3 below). Further, an electric
cleaner has been provided in which a dust attracting member formed
by a material having a wiping cloth covered and attached on a soft
core material such as brush, sponge and the like and formed with a
plurality of cuts at the lower part, or an elastic member formed by
a sponge-like porous material having high percentage of void are
arranged around the absorbing port so as to face the cleaning
surface (refer to e.g., patent article 4, 5 below).
[0006] Reference is made to patent article 1, Japanese Laid-Open
Utility Model Publication No. H02-90762; patent article 2, Japanese
Laid-Open Patent Publication No. 2001-149282; patent article 3,
Japanese Laid-Open Patent Publication No. H09-10143; patent article
4, Japanese Laid-Open Patent Publication No. H11-253369; and patent
article 5, Japanese Laid-Open Patent Publication No. 2000-5108.
SUMMARY OF THE INVENTION
[0007] As disclosed in patent articles 1 to 3, the garbage and dust
are prevented from scattering backwards when the wall body that can
receive the garbage and dust such as the blade and the sweep-out
device is arranged at the back or at the center of the absorbing
port, but scattering of hard garbage such as a small rock towards
both sides by rolling etc. cannot be prevented, and thus the
garbage and the like are sometimes not absorbed from the absorbing
port. In particular, in case of the autonomous electric cleaner
that is mostly used in a situation of not monitored by a person,
even if the garbage and dust are left unabsorbed while the cleaner
is traveling on the cleaning surface, the operation of immediate
returning back to where garbage and dust have been left unabsorbed
is generally not performed, and thus the garbage and dust tend to
remain on the cleaning surface. As disclosed in patent articles 4,
5, when the wall body through which the garbage and dust of a
predetermined size can be passed through such as brush or dust
attaching member or elastic member formed with a gap, a cut, or a
void is arranged around the absorbing port, the garbage and dust of
greater than the predetermined size cannot pass through the wall
body from the front and approach the absorbing port, and may
scatter to both sides and remain unabsorbed. Even if the garbage
and dust of less than or equal to a predetermined size pass through
the wall body from the front and approach the absorbing port, they
may pass through the wall body and scatter backwards or to both
sides before being absorbed from the absorbing port and remain
unabsorbed.
[0008] The present invention provides, in an aim to solve the above
problems, an electric cleaner and an autonomous electric cleaner
that prevents garbage and dust from scattering backwards and
towards both sides thereby enhancing the cleaning rate (absorption
rate).
[0009] In the present invention, an electric cleaner absorbing
garbage and dust from an absorbing port facing a cleaning surface
is provided with receiving wall bodies respectively positioned at a
back part and both sides of the absorbing port so as to contact the
cleaning surface and receive the garbage and dust.
[0010] In this arrangement, the garbage and dust on the cleaning
surface approach the absorbing port from the front that is opened,
that is, not arranged with a receiving wall body, and scattering
backwards and to both sides before being absorbed into the
absorbing port is prevented by being received by the receiving wall
bodies, and thus the remains of the garbage and dust that are not
absorbed into the absorbing port is reduced and the cleaning rate
(absorbing rate) is enhanced.
[0011] In one embodiment of the present invention, the absorbing
port having the receiving wall bodies at the back part and the both
sides thereof is provided with a rotating cleaning body that
rotates and sweeps the garbage and dust into the absorbing
port.
[0012] Thus, the garbage and dust near the absorbing port is easily
swept and absorbed into the absorbing port, thereby further
enhancing the cleaning rate of the garbage and dust. Further, even
if the garbage and dust are not swept but bounced off by the
rotating cleaning body, they are prevented from scattering
backwards and to both sides by the receiving wall bodies and remain
in the vicinity of the absorbing port, and thus, the garbage and
dust are swept again and easily absorbed into the absorbing port by
the rotating cleaning body.
[0013] In one embodiment of the present invention, the receiving
wall body at the back part of the absorbing port is disposed in a
direction perpendicular to a traveling direction and parallel to
the absorbing port, and the receiving wall bodies on both sides of
the absorbing port is disposed in a slanted manner so that a
distance with respect to each other increases towards a front
part.
[0014] Thus, the garbage and dust are collected towards the center
of the absorbing port by means of receiving wall bodies arranged in
a slanted manner at both sides of the absorbing port and easily
absorbed into the absorbing port. Further, when the garbage and
dust are received by the receiving wall body arranged at the back
part of the absorbing port, the garbage and dust are less likely to
move towards the sides along the receiving wall body, and variation
in absorption of the garbage and dust depending on the position is
suppressed since the distance to the absorbing port is constant
irrespective of the position of the garbage and dust at the
receiving wall body. Further, when hard garbage and the like such
as a small rock hits the receiving wall body arranged at the back
part of the absorbing port and bounces off toward the sides, the
garbage and the like hits the receiving wall bodies at the sides
thereby being bounced back towards the front at the center of the
absorbing port, and thus the garbage and the like are easily
absorbed from the absorbing port.
[0015] In one embodiment of the present invention, the receiving
wall body at the back part of the absorbing port and the receiving
wall bodies at both sides of the absorbing port are positioned
distant from each other with a microscopic gap therebetween that
allows air to pass through.
[0016] Thus, distinct large garbage and dust do not pass from the
microscopic gap between the receiving wall body arranged at the
back part and the receiving wall body arranged at both sides of the
absorbing port, but air passes and escapes therefrom, whereby
scattering of the garbage and dust towards the back and both sides
is prevented, air pressure at the inner side of the receiving wall
body, that is, the space on the absorbing port side is adjusted,
and influence on the movement performance of the electric cleaner
is eliminated.
[0017] In a typical embodiment of the present invention, an
autonomous electric cleaner that autonomously travels and cleans a
cleaning surface includes an absorbing port facing the cleaning
surface to absorb garbage and dust; and a rotating brush arranged
at the absorbing port and rotated to sweep the garbage and dust
into the absorbing port, wherein a blade that contacts the cleaning
surface and receives the garbage and dust is arranged in the
vicinity of a back part of the absorbing port parallel to the
absorbing port and the rotating brush across the entire width of
the absorbing port perpendicular to a traveling direction, and
blades are arranged in the vicinity of both sides of the absorbing
port so that a distance with respect to each other increases
towards a front part, and arranged slightly slighted from a
perpendicular direction and spaced apart by a microscopic gap that
allows air to pass through with respect to the blade arranged at
the back part.
[0018] Thus, the garbage and dust on the cleaning surface approach
the absorbing port from the front not arranged with a blade, and
scattering of the garbage and dust towards the back and both sides
before being absorbed into the absorbing port is prevented by being
received by the blades. Further, the garbage and dust remain in the
vicinity of the absorbing port by the blades, so as to be swept and
easily absorbed into the absorbing port by the rotating brush. The
garbage and dust are collected towards the center of the absorbing
port by the blades arranged on both sides of the absorbing port so
as to be easily absorbed from the absorbing port. When the garbage
and dust are received by the blade arranged at the back part of the
absorbing port, the garbage and dust are less likely to move
towards the sides along the blade, and variation in absorption of
the garbage and dust depending on the position is suppressed since
the distance to the absorbing port and the rotating brush is
constant irrespective of the position of the garbage and dust on
the receiving wall body. Further, when hard garbage such as a small
rock hits the blade arranged at the back part of the absorbing port
and bounces off, the garbage and the like hits the blades at the
sides thereby being bounced towards the front at the center of the
absorbing port, and thus the garbage and the like are easily
absorbed from the absorbing port. Therefore, in the autonomous
electric cleaner mostly used in a situation of not being monitored
by a person, the remains of the garbage and dust unabsorbed from
the absorbing port is reduced and thus the cleaning rate (absorbing
rate) is enhanced. In addition, since the blades arranged at both
sides of the absorbing port is slightly slanted from the
perpendicular direction with respect to the blade arranged at the
back of the absorbing port, it barely acts as the traveling
resistance of the autonomous electric cleaner, and the air passes
and escapes from a microscopic gap between the blades arranged at
the back and both sides, and thus the air pressure on the inner
side of the blade, that is, the space on the absorbing port side is
adjusted, and the influence on the traveling performance of the
autonomous electric cleaner is eliminated.
[0019] According to the present invention, the garbage and dust on
the cleaning surface approach the absorbing port from the front
that is open, and scattering towards the back and both sides before
being absorbed into the absorbing port is prevented by being
received at the receiving wall body, and thus the remains of the
garbage and dust unabsorbed by the absorbing port is reduced and
the cleaning rate (absorbing rate) is enhanced.
BRIEF DESCRIPTION OF THE DRAWINGS
[0020] FIG. 1 is a plan view of an autonomous electric cleaner
according to an embodiment of the present invention;
[0021] FIG. 2 is a side view of the autonomous electric
cleaner;
[0022] FIG. 3 is a bottom view of the autonomous electric
cleaner;
[0023] FIG. 4 is an enlarged view of the main part of FIG. 3 of the
autonomous electric cleaner; and
[0024] FIG. 5 is a plan view showing the autonomous electric
cleaner with a cover in an opened state.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0025] FIG. 1 is a plan view of an autonomous electric cleaner 1
according to an embodiment of the present invention. FIG. 2 is a
side view of the autonomous electric cleaner 1. FIG. 3 is a bottom
view of the autonomous electric cleaner 1. FIG. 4 is an enlarged
view of the main part in FIG. 3. The autonomous electric cleaner
(hereinafter referred to as simply "electric cleaner") 1
autonomously travels while absorbing garbage and dust on the floor
F which is a cleaning surface and cleaning the surface F.
[0026] An openable/closable cover 3 is attached to the upper part
of the main body 2 of the electric cleaner 1 as shown in FIG. 1 and
FIG. 2. An operating part 4 including various keys for instructing
start or stop and the like of cleaning to the electric cleaner 1,
and a camera 5 for photographing the surrounding are arranged at
the upper part of the cover 3. The camera 5 is incorporated in the
cover 3 in FIG. 1 and FIG. 2 but projects upward during
photographing. A plurality of sensors 6 are arranged on each outer
peripheral surface of the main body 2, as shown in FIG. 1 to FIG.
3. The sensor 6 is configured by an optical sensor, an ultrasonic
sensor, a temperature sensor and the like, and detects the distance
to the obstacles such as wall, step, floor, installed objects in
the surrounding, or detects person. The electric cleaner 1 travels
while avoiding contact with the surrounding obstacles and the like
based on the output from the sensor 6.
[0027] As shown in FIG. 2 and FIG. 3, a traveling wheel 7 is
arranged on each side of a center portion of the bottom of the main
body 2. Three driven wheels 8 are arranged on the front side (left
side in each figure) between the traveling wheels 7, and two driven
wheels 8 are arranged on the back side (right side in each figure).
Each traveling wheel 7 is independently rotated by the drive of a
separate motor (not shown). When each traveling wheel 7 is
independently rotated, each driven wheel 8 rolls on the floor F
with the traveling wheel 7, and the electric cleaner 1 travels
while changing the direction of the main body 2. An attachment 2a
of a battery (not shown) which is a driving source of the electric
cleaner 1 is attached to the center of the bottom of the main body
2.
[0028] One sub-rotating brush 9 is arranged on both sides towards
the front of the bottom of the main body 2. Each sub-rotating brush
9 rotates towards the center of the main body 2 in a plane parallel
to the floor F through the drive of a separate motor (not shown).
That is, the sub-rotating brush 9 on the upper side in FIG. 3
rotates in the counterclockwise direction, whereas the sub-rotating
brush 9 on the lower side in FIG. 3 rotates in the clockwise
direction. Thus, when each sub-rotating brush 9 rotates, the
garbage and dust on the floor F are collected into a range at the
lower part of the center of the main body 2 shown with diagonal
lines.
[0029] An absorbing port 2b for absorbing garbage and dust along
with external air is arranged facing the floor F towards the back
of the bottom of the main body 2. A main rotating brush 10 is
arranged on the absorbing port 2b perpendicular to a traveling
(movement) direction X of the main body 2 and parallel to the
absorbing port 2b. The main rotating brush 10 has a plurality of
rubber blades 10a arranged in a spiral form on the outer peripheral
surface, and rotates from the front towards the back of the main
body 2 in a plane parallel to the traveling direction X and
perpendicular to the floor F by the drive of the motor (not shown).
That is, in FIG. 2, the main rotating brush 10 rotates in a
counterclockwise direction. When the main rotating brush 10 rotates
in such manner, the garbage and dust collected to the center by the
sub-rotating brush 9 are swept into the adsorbing port 2b. The main
rotating brush 10 configures one embodiment of the rotating
cleaning body and the rotating brush in the present invention.
[0030] As shown in FIG. 2 to FIG. 4, a rubber blade 11 is arranged
in the vicinity of the back part of the absorbing port 2b parallel
to the absorbing port 2b and the main rotating blade 10 across the
entire width W of the absorbing port 2b that is perpendicular to
the traveling direction X. Rubber blades 12 are arranged in the
vicinity of both left and right sides of the absorbing port 2b in a
manner slightly slanted with respect to the blade 11 and spaced
apart from the blade 11 by a microscopic gap 13 so that the
distance with respect to each other increases towards the front. In
the present example, the angle 0 formed by each of the blades 12 on
both sides (hereinafter referred to as "side blades") and the blade
11 at the back (hereinafter referred to as "back blade") is set to
about 100 degrees. The size of the gap 13 is set to about 2 to 3
mm, so as to pass air but not distinct garbage and dust of greater
than or equal to a predetermined size. Each blade 11, 12 contacts
the floor F and receives garbage and dust, as shown in FIG. 2. The
blades 11, 12 configure one embodiment of receiving wall bodies and
the blades according to the present invention.
[0031] FIG. 5 is a plan view showing the electric cleaner 1 with
the cover 3 in an opened state. An accommodating part 2c for
accommodating the electric air blower 14, and an attachment part 2d
for removably attaching the dust collecting body 17 are arranged at
the portion covered by the cover 3 of the main body 2. The
accommodating part 2c and the attachment part 2d are partitioned by
a barrier 2e, and communicated through a void or a communication
hole (not shown) formed in the barrier 2e. The electric air blower
14 is configured by a motor 15 and a fan 16, where suction force is
generated by rotating the fan 16 through the drive of the motor
15.
[0032] The dust collecting body 17 is configured by a dust box 18
formed with an air suction hole 18a at the bottom surface and
formed with an air exhaust hole 18b at the side surface facing the
accommodating part 2c side; a filter 19 for passing air but not
passing garbage and dust of greater than or equal to a
predetermined size; and a filter holder 20 for holding the filter
19 and removably attached to the dust box 18 so as to cover the air
exhaust hole 18b. The air suction hole 18a of the dust box 18
communicates with the absorbing port 2b of the main body 2 (FIG.
3), and the air exhaust hole 18b communicates with the
accommodating part 2c by way of the void and the communication hole
of the barrier 2e and the electric air blower 14.
[0033] A control circuit for controlling each part, a power supply
circuit for supplying power to each part, a battery and the like
are arranged on the electric cleaner 1 other than the above
components, but the illustration and explanation thereof are
omitted herein.
[0034] In the electric cleaner 1, when the cover 3 is closed and
the above mentioned operating part 4 is operated for the electric
cleaner 1 to start cleaning, the electric cleaner 1 autonomously
travels while avoiding obstacles as mentioned above and rotates
each sub-rotating brush 9 and the main rotating brush 10 and
further generates the suction force with the electric air blower
14. The garbage and dust on the floor F are then collected to the
lower part at the center of the main body 2 by means of each
sub-rotating brush 9, and swept into the absorbing port 2b by the
main rotating brush 10 and absorbed from the absorbing port 2b
along with external air by the suction force generated by the
electric air blower 14. The external air and the garbage and dust
that have been absorbed then flow into the dust box 18 through the
air suction hole 18a of the dust box 18. The garbage and dust of
greater than or equal to a predetermined size are separated from
the external air by the filter 19 arranged in the vicinity of the
air exhaust hole 18b of the dust box 18. The separated garbage and
dust are then captured and collected in the dust box 18 and the
filter 19 and the cleaned air is exhausted to the outside through
the air exhaust hole 18b, the barrier 2e, the electric air blower
14, the accommodating part 2c, and the space between the main body
2 and the cover 3.
[0035] In the cleaning operation, since the blades 11, 12 are
arranged at the back part and both sides of the absorbing port 2b,
garbage and dust on the floor F approach the absorbing port 2b from
the front that is open, that is, not arranged with the blades 11,
12, and the garbage and dust are prevented from scattering
backwards and to both sides before being absorbed from the
absorbing port 2b by being received by the blades 11, 12. Further,
since the blades 11, 12 are arranged in the vicinity of the
absorbing port 2b and the back blade 11 is arranged across the
entire width W of the absorbing port 2b, the garbage and dust may
be left remaining in the vicinity of the absorbing port 2b by the
blades 11, 12 so as to be swept and easily absorbed into the
absorbing port 2b by the main rotating brush 10. Further, even if
the garbage and dust are bounced off without being swept into the
absorbing port 2b by the main rotating brush 10, the garbage and
dust are left remaining in the vicinity of the absorbing port 2b by
the blades 11, 12, and thus, the garbage and dust are swept again
and easily absorbed into the absorbing port 2b by the main rotating
brush 10.
[0036] Since the side blades 12 are arranged slanted so that the
distance with respect to each other increases towards the front,
even if dust and the like of light mass flies in the space between
the main body 2 and the floor F and move outside the range
indicated by a diagonal line of FIG. 3, the dust and the like can
be collected towards the center of the absorbing port 2b by each
side blade 12 so as to be easily absorbed from the absorbing port
2b. Further, since the back blade 11 is arranged perpendicular to
the traveling direction X and parallel to the absorbing port 2b and
the main rotating brush 10, the garbage and dust are less likely to
move towards the side along the back blade 11 when garbage and dust
are received at the back blade 11. Further, variation of absorption
of the garbage and dust depending on the position is suppressed
since the distance to the absorbing port 2b and the main rotating
brush 10 is constant irrespective of the position of the garbage
and dust at the back blade 11. Moreover, when hard garbage and the
like such as a small rock hits the back blade 11 and bounces off
towards the sides, the garbage and the like hits the side blades 12
and bounces back towards the front at the center of the absorbing
port 2b, so that the garbage and the like are easily absorbed from
the absorbing port 2b.
[0037] As a result of the above, the garbage and dust left
remaining without being absorbed from the absorbing port 2b are
reduced and the cleaning rate (absorbing rate) is enhanced in a
situation where the autonomous electric cleaner 1 is used without
being monitored by a person and the operation of immediately
reabsorbing the garbage and dust when they are left unabsorbed is
not performed.
[0038] In addition, since each of the side blades 12 is simply
slightly slanted from the perpendicular direction with respect to
the back blade 11, it barely acts as a traveling resistance of the
autonomous electric cleaner 1. Further, since a microscopic gap 13
is formed between the back blade 11 and each side blade 12,
distinct large garbage and dust do not pass the gap 13, and
substantially only air passes and escapes the gap. The scattering
of garbage and dust backwards and to both sides is thereby
prevented and the air pressure at the inner side of the blades 11,
12, that is, the space on the absorbing port 2b side is adjusted.
Therefore, the influence on the traveling performance of the
autonomous electric cleaner 1 such as movement or pivot of the main
body 2 becoming difficult due to the blades 11, 12 can be
eliminated.
[0039] The present invention may adopt various forms other than the
above described embodiment. For instance, a case of using rubber
blades 11, 12 as the receiving wall bodies is given by way of
example in the above embodiment, but the present invention is not
limited thereto. For instance, synthetic resin blades, or brushes
and the like in which capillary bodies having rigidity are
spacelessly bonded may be used. That is, any form may be used as
the receiving wall bodies as long as it is possible to receive the
garbage and dust on the absorbing port side without passing
them.
[0040] Further, in the above embodiment, a case of arranging blades
11, 12 at the back and both sides of the main rotating brush 10
that rotates in a counterclockwise direction so as not to become a
resistance in the forward movement of the electric cleaner 1 by the
drive of the motor is given by way of example, but the present
invention is not limited thereto. For instance, the receiving wall
bodies such as the blades may be arranged at the back part and both
sides of the rotating cleaning body that rotates in the clockwise
direction that becomes a resistance and that rotates in the
counterclockwise direction that does not become a resistance in the
forward movement of the electric cleaner by the drive of the motor
or the suction force of the electric air blower.
[0041] Further, in the above embodiment, the present invention is
applied to the autonomous electric cleaner 1 by way of example, but
the present invention may be applied to a general electric cleaner
such as, for instance, a non-autonomous electric cleaner in which
the cleaner travels by being pulled by a person, an electric
cleaner having a absorbing port body separate from the canister
type main body and the like.
* * * * *