U.S. patent application number 12/149375 was filed with the patent office on 2009-02-26 for robot cleaner system having robot cleaner and docking station.
This patent application is currently assigned to Samsung Electronics Co., Ltd.. Invention is credited to Jeong Hun Kim, Youn Baek Lee, Yeon Taek Oh, Soo Sang Yang.
Application Number | 20090049640 12/149375 |
Document ID | / |
Family ID | 40380803 |
Filed Date | 2009-02-26 |
United States Patent
Application |
20090049640 |
Kind Code |
A1 |
Lee; Youn Baek ; et
al. |
February 26, 2009 |
Robot cleaner system having robot cleaner and docking station
Abstract
A robot cleaner system having an improved docking structure to
allow a dust discharge port of a robot cleaner to come into close
contact with a dust suction port of a docking station without an
additional drive device. The robot cleaner system includes a robot
cleaner having a dust discharge port, a docking station having a
dust suction port to suction dust collected in the robot cleaner,
and a docking device to perform a seesaw movement as it comes into
contact with the robot cleaner when the robot cleaner docks with
the docking station, so as to allow the dust suction port to come
into close contact with the dust discharge port. The docking device
further includes a link member installed in the docking station in
a pivotally rotatable manner. The link member has one end provided
with a contact portion to come into contact with the robot cleaner,
and the other end provided with a docking portion defining the dust
suction port therein.
Inventors: |
Lee; Youn Baek; (Suwon-si,
KR) ; Yang; Soo Sang; (Suwon-si, KR) ; Oh;
Yeon Taek; (Yongin-si, KR) ; Kim; Jeong Hun;
(Suwon-si, KR) |
Correspondence
Address: |
STAAS & HALSEY LLP
SUITE 700, 1201 NEW YORK AVENUE, N.W.
WASHINGTON
DC
20005
US
|
Assignee: |
Samsung Electronics Co.,
Ltd.
Suwon-si
KR
|
Family ID: |
40380803 |
Appl. No.: |
12/149375 |
Filed: |
April 30, 2008 |
Current U.S.
Class: |
15/319 ; 15/347;
901/1 |
Current CPC
Class: |
A47L 9/20 20130101; A47L
2201/00 20130101; A47L 2201/024 20130101 |
Class at
Publication: |
15/319 ; 15/347;
901/1 |
International
Class: |
A47L 5/00 20060101
A47L005/00; A47L 9/20 20060101 A47L009/20 |
Foreign Application Data
Date |
Code |
Application Number |
Aug 24, 2007 |
KR |
10-2007-0085304 |
Claims
1. A robot cleaner system comprising: a robot cleaner having a dust
discharge port; a docking station having a dust suction port to
suction dust collected in the robot cleaner; and a docking device
to contact with the robot cleaner to perform a seesaw movement when
the robot cleaner docks with the docking station, so as to allow
the dust suction port to close contact with the dust discharge
port.
2. The system according to claim 1, wherein the docking device
comprises a link member rotatably mounted to the docking
station.
3. The system according to claim 2, wherein the link member
comprises one end having a contact portion to contact with the
robot cleaner, and the other end having a docking portion defining
the dust suction port therein.
4. The system according to claim 3, wherein the contact portion is
provided with a roller to rotate in contact with the robot
cleaner.
5. The system according to claim 3, wherein the docking device
further comprises an elastic member to elastically bias the link
member such that the dust suction port is spaced apart from the
dust discharge port.
6. The system according to claim 1, wherein the docking device
comprises a flexible joint pipe having one end communicating with
the dust suction port and the other end fixed to the docking
station.
7. The system according to claim 1, wherein the docking device
comprises a sealing member to seal a gap between the dust discharge
port and the dust suction port.
8. The system according to claim 1, wherein the robot cleaner
comprises a slope to guide the seesaw movement of the docking
device when the robot cleaner moves in contact with the docking
device.
9. The system according to claim 1, wherein the docking station
comprises a suction device to generate a suction force, and a
dust-collecting device to collect dust suctioned from the robot
cleaner.
10. The system according to claim 1, further comprising: a manual
vacuum cleaner to be connected with the docking station, to suction
the dust collected in the robot cleaner through the dust suction
port.
11. A robot cleaner system comprising: a robot cleaner having a
dust discharge port; a docking station having a dust suction port
to suction dust collected in the robot cleaner and a connecting
port communicating with the dust suction port; a docking device to
be pivotally rotated as it comes into contact with the robot
cleaner when the robot cleaner docks with the docking station, so
as to allow the dust suction port to close contact with the dust
discharge port; and a manual vacuum cleaner having a connecting
pipe to be fitted into the connecting port, the manual vacuum
cleaner being used to suction the dust from the robot cleaner
through the dust discharge port, the dust suction port, and the
connecting pipe.
12. The system according to claim 11, wherein the docking device
comprises a link member rotatably mounted to the docking station,
and the link member comprises one end having a contact portion to
come into contact with an upper surface the robot cleaner, and the
other end having a docking portion defining the dust suction port
therein.
13. The system according to claim 12, wherein the link member
performs a seesaw movement in a first direction when the robot
cleaner moves while contacting with the contact portion, so as to
allow the dust suction port to come into close contact with the
dust discharge port, and also performs a seesaw movement in a
second direction when the robot cleaner is separated from the
contact portion, so as to space apart the dust suction port from
the dust discharge port.
14. A docking station to dock with a robot cleaner having a dust
discharge port, the docking station comprising: a frame; and a link
member rotatably coupled to the frame, wherein the link member
comprises a contact portion to be pivotally rotated as it comes
into contact with the robot cleaner upon docking of the robot
cleaner, and a dust suction port formed at the opposite side of the
contact portion about a rotating center of the link member, the
dust suction port coming into close contact with the dust discharge
port of the robot cleaner by the pivotal rotation of the contact
portion.
15. A docking device for allowing a dust suction port of a docking
station to move into close contact with a dust discharge port of a
robot cleaner, comprising: a link member having a first end with a
contact portion to contact the robot cleaner and a second end with
a docking portion defining the dust suction port therein, wherein
the robot cleaner has a slope to guide the docking device to move
the dust suction port into close contact with the dust discharge
port as the robot cleaner moves into the docking station to prevent
leakage of dust during transfer of dust from the robot cleaner to
the docking station.
16. The docking device according to claim 15, further comprising an
elastic member to elastically bias the link member such that the
dust suction port is spaced from the dust discharge port as the
robot cleaner departs from the docking station.
17. The docking device according to claim 15, further comprising a
flexible joint pipe having one end communicating with the dust
suction port and the other end fixed to the docking station.
18. The docking device according to claim 15, further comprising a
sealing member to seal a gap between the dust discharge port and
the dust suction port.
19. The docking device according to claim 15, wherein the link
member performs a seesaw movement in a first direction when the
robot cleaner moves while contacting with the contact portion, so
as to allow the dust suction port to come into close contact with
the dust discharge port, and also performs a seesaw movement in a
second direction when the robot cleaner is separated from the
contact portion, so as to space apart the dust suction port from
the dust discharge port.
20. A robot cleaner to dock with a docking device of a docking
station having a dust suction port so as to discharge dust
collected therein, the robot cleaner comprising: a dust discharge
port; and a slope to guide the docking device to move the dust
suction port into close contact with the dust discharge port as the
robot cleaner moves into the docking station to prevent leakage of
dust during transfer of dust from the robot cleaner to the docking
station.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the priority benefit of Korean
Patent Application No. 2007-0085304, filed on Aug. 24, 2007 in the
Korean Intellectual Property Office, the disclosure of which is
incorporated herein by reference.
BACKGROUND
[0002] 1. Field
[0003] Embodiments relate to a robot cleaner system, and, more
particularly, to a robot cleaner system having a docking station
installed to suction and remove dust collected in a robot
cleaner.
[0004] 2. Description of the Related Art
[0005] A cleaner is an appliance to remove dirt and clean a room. A
vacuum cleaner is generally used to suction dirt by use of a
suction force generated from a low-pressure unit. Recently, the
development of a robot cleaner is underway. The robot cleaner
removes dirt from the floor by a self-running function thereof
without a user's labor.
[0006] Generally, the robot cleaner is used together with a station
(hereinafter, referred to as a "docking station"), to constitute a
single system. The docking station is located at a desired position
of a room and has the function of charging the robot cleaner or
removing dust collected in the robot cleaner.
[0007] An example of the robot cleaner system is disclosed in U.S.
Published Patent No. 2005/0150519. The disclosed robot cleaner
system includes a robot cleaner, and a docking station having a
dust suction unit. The robot cleaner has a dust suction port
perforated in the bottom thereof, and a brush is rotatably
installed to the suction hole to sweep away dust on the floor. The
docking station has a deck formed with a slope to allow the robot
cleaner to ascend thereon, and a dust suction port is formed in a
position of the slope. With this configuration, if the robot
cleaner ascends along the slope and reaches a docking position, the
suction hole of the robot cleaner and the suction hole of the slope
are aligned to face each other. In this state, dust collected in
the robot cleaner can be removed by operation of the suction
unit.
[0008] In the above described conventional robot cleaner system,
the suction of dust from the robot cleaner into the docking station
is carried out, in a state wherein both the suction holes of the
robot cleaner and the docking station simply face each other,
without a docking device to connect the robot cleaner and the
docking station to each other. However, this system has problems
including a great loss of a suction force generated from the
suction unit and leakage of dust, which was to be moved from the
robot cleaner into the docking station, into a room having the
conventional robot cleaner system.
[0009] As a solution of the above described problems, Korean Patent
Laid-open Publication No. 2007-0010298 discloses a dust-removal
device (docking station) for a robot cleaner, which has a connector
to be moved up and down by operation of a drive device.
[0010] If the robot cleaner docks with the dust-removal device, the
connector of the dust-removal device is moved down to be inserted
into the robot cleaner, thereby communicating with a dust
receptacle provided in the robot cleaner. In this state, dust
collected in the dust receptacle of the robot cleaner can be
suctioned into the dust-removal device through the connector by
operation of a fan motor assembly of the dust-removal device.
[0011] In the above described dust-removal device, since the
suction of dust from the robot cleaner into the dust-removal device
is carried out in a state wherein the connector of the dust-removal
device is inserted into the robot cleaner, the dust collected in
the robot cleaner can be efficiently removed without the loss of a
suction force. However, to move the connector, it is necessary to
provide a drive device for the connector within the dust-removal
device, and this has a problem of complicating the configuration of
the dust-removal device.
SUMMARY
[0012] Accordingly, it is an aspect of embodiments to provide a
robot cleaner system having an improved docking structure, in which
a dust discharge port of a robot cleaner can come into close
contact with a dust suction port of a docking station without an
additional drive device.
[0013] In accordance with an aspect of embodiments, the above
and/or other aspects can be achieved by the provision of a robot
cleaner system including a robot cleaner having a dust discharge
port; a docking station having a dust suction port to suction dust
collected in the robot cleaner; and a docking device to contact
with the robot cleaner to perform a seesaw movement when the robot
cleaner docks with the docking station, so as to allow the dust
suction port to close contact with the dust discharge port.
[0014] The docking device may include a link member rotatably
mounted to the docking station.
[0015] The link member may include one end having a contact portion
to contact with the robot cleaner, and the other end having a
docking portion defining the dust suction port therein.
[0016] The contact portion may be provided with a roller to rotate
in contact with the robot cleaner.
[0017] The docking device may further include an elastic member to
elastically bias the link member such that the dust suction port is
spaced apart from the dust discharge port.
[0018] The docking device may include a flexible joint pipe having
one end communicating with the dust suction port and the other end
fixed to the docking station.
[0019] The docking device may include a sealing member to seal a
gap between the dust discharge port and the dust suction port.
[0020] The robot cleaner may include a slope to guide the seesaw
movement of the docking device when the robot cleaner moves in
contact with the docking device.
[0021] The docking station may include a suction device to generate
a suction force, and a dust-collecting device to collect dust
suctioned from the robot cleaner.
[0022] The robot cleaner system may further include a manual vacuum
cleaner to be connected with the docking station, to suction the
dust collected in the robot cleaner through the dust suction
port.
[0023] In accordance with another aspect of embodiments, there is
provided a robot cleaner system including a robot cleaner having a
dust discharge port; a docking station having a dust suction port
to suction dust collected in the robot cleaner and a connecting
port communicating with the dust suction port; a docking device to
be pivotally rotated as it comes into contact with the robot
cleaner when the robot cleaner docks with the docking station, so
as to allow the dust suction port to close contact with the dust
discharge port; and a manual vacuum cleaner having a connecting
pipe to be fitted into the connecting port, the manual vacuum
cleaner being used to suction the dust from the robot cleaner
through the dust discharge port, the dust suction port, and the
connecting pipe.
[0024] The docking device may include a link member rotatably
mounted to the docking station, and the link member may comprise
one end having a contact portion to come into contact with an upper
surface the robot cleaner, and the other end having a docking
portion defining the dust suction port therein.
[0025] The link member may perform a seesaw movement in a first
direction when the robot cleaner moves while contacting with the
contact portion, so as to allow the dust suction port to come into
close contact with the dust discharge port, and also may perform a
seesaw movement in a second direction when the robot cleaner is
separated from the contact portion, so as to space apart the dust
suction port from the dust discharge port.
[0026] In accordance with a further aspect of embodiments, there is
provided a robot cleaner system including a robot cleaner having a
dust discharge port; a docking station having a dust suction port
to suction dust collected in the robot cleaner; and a docking
device to perform a seesaw movement as it comes into contact with
the docking station when the robot cleaner docks with the docking
station, so as to allow the dust discharge port to come into close
contact with the dust suction port.
[0027] In accordance with another aspect of embodiments, there is
provided a docking station to dock with a robot cleaner having a
dust discharge port, the docking station including a frame; and a
link member rotatably coupled to the frame, wherein the link member
includes a contact portion to be pivotally rotated as it comes into
contact with the robot cleaner upon docking of the robot cleaner,
and a dust suction port formed at the opposite side of the contact
portion about a rotating center of the link member, the dust
suction port coming into close contact with the dust discharge port
of the robot cleaner by the pivotal rotation of the contact
portion.
[0028] In accordance with yet another aspect of embodiments, there
is provided a robot cleaner to dock with a docking station having a
dust suction port so as to discharge dust collected therein, the
robot cleaner including a frame; and a link member rotatably
coupled to the frame, wherein the link member comprises a contact
portion to be pivotally rotated as it comes into contact with the
docking station, and a dust discharge port formed at the opposite
side of the contact portion about a rotating center of the link
member, the dust discharge port coming into close contact with the
dust suction port of the docking station by the pivotal rotation of
the contact portion.
[0029] In accordance with yet another aspect of the invention
embodiments, there is provided a docking device for allowing a dust
suction port of a docking station to move into close contact with a
dust discharge port of a robot cleaner, including a link member
having a first end with a contact portion to contact the robot
cleaner and a second end with a docking portion defining the dust
suction port therein, wherein the robot cleaner has a slope to
guide the docking device to move the dust suction port into close
contact with the dust discharge port as the robot cleaner moves
into the docking station to prevent leakage of dust during transfer
of dust from the robot cleaner to the docking station.
[0030] The docking device may further include an elastic member to
elastically bias the link member such that the dust suction port is
spaced from the dust discharge port as the robot cleaner departs
from the docking station.
[0031] The docking device may further include a flexible joint pipe
having one end communicating with the dust suction port and the
other end fixed to the docking station.
[0032] The docking device may further include a sealing member to
seal a gap between the dust discharge port and the dust suction
port.
[0033] The link member may perform a seesaw movement in a first
direction when the robot cleaner moves while contacting with the
contact portion, so as to allow the dust suction port to come into
close contact with the dust discharge port, and also performs a
seesaw movement in a second direction when the robot cleaner is
separated from the contact portion, so as to space apart the dust
suction port from the dust discharge port.
[0034] In accordance with yet another aspect of the invention
embodiments, there is provided a robot cleaner to dock with a
docking device of a docking station having a dust suction port so
as to discharge dust collected therein, the robot cleaner including
a dust discharge port; and a slope to guide the docking device to
move the dust suction port into close contact with the dust
discharge port as the robot cleaner moves into the docking station
to prevent leakage of dust during transfer of dust from the robot
cleaner to the docking station.
BRIEF DESCRIPTION OF THE DRAWINGS
[0035] These and/or other aspects, features, and advantages will
become apparent and more readily appreciated from the following
description of exemplary embodiments, taken in conjunction with the
accompanying drawings of which:
[0036] FIGS. 1 and 2 are sectional views, respectively, showing a
robot cleaner and a docking station of a robot cleaner system
according to an exemplary embodiment;
[0037] FIG. 3 is a perspective view showing the configuration of a
docking device of the robot cleaner system according to an
exemplary embodiment;
[0038] FIGS. 4 and 5 are sectional views illustrating the operation
of the robot cleaner system according to an exemplary
embodiment;
[0039] FIG. 6 is a sectional view illustrating the configuration of
a robot cleaner system according to another exemplary embodiment;
and
[0040] FIG. 7 is a sectional view showing a partial configuration
of FIG. 6.
DETAILED DESCRIPTION OF EMBODIMENTS
[0041] Reference will now be made in detail to exemplary
embodiments, examples of which are illustrated in the accompanying
drawings, wherein like reference numerals refer to like elements
throughout. Exemplary embodiments are described below by referring
to the figures.
[0042] FIGS. 1 and 2 are sectional views, respectively, showing a
robot cleaner and a docking station of a robot cleaner system
according to an exemplary embodiment.
[0043] As shown in FIGS. 1 and 2, the robot cleaner system
according to an exemplary embodiment includes a robot cleaner 100
and a docking station 200. The robot cleaner 100 performs a
cleaning operation for a cleaning region by self-running thereof,
and returns to the docking station 200 if dust over a predetermined
level is accumulated therein, to discharge the dust.
[0044] As shown in FIG. 1, the robot cleaner 100 includes a robot
body 110, and a first suction device 120 and a first
dust-collecting device 130 installed in the robot body 110.
[0045] The first suction device 120 is used to generate a suction
force required to suction dust. The first suction device 120
includes a suction motor (not shown) and a blowing fan (not shown).
The first dust-collecting device 130 is used to collect and store
the dust introduced into the robot body 100 by the suction force.
The first dust-collecting device 130 may incorporate a filter 131
to prevent the dust from being introduced into the first suction
device 120, and a dust-amount sensor 132 to sense the amount of the
dust accumulated in the dust-collecting device 130.
[0046] The robot body 110 is provided, at the bottom thereof, with
a pair of drive wheels 111, for the self-running of the robot
cleaner 100. The pair of drive wheels 111 can be selectively driven
by a drive motor (not shown) provided to rotate the drive wheels
111, respectively, to move the robot cleaner 100 in a desired
direction. An obstacle detecting sensor 112, such as an infrared
sensor, ultrasonic sensor, or the like, is installed at an outer
surface of the robot body 110. The obstacle detecting sensor 112 is
used to measure a distance from the robot cleaner 100 to an
obstacle located around the robot cleaner 100, to assist the robot
cleaner 100 to avoid the obstacle.
[0047] The robot body 110 has an inlet hole 113 formed in the
bottom thereof to suction dust from the floor of the cleaning
region, and a vent hole 114 formed in the top thereof to discharge
air, discharged from the first suction device 120, to the outside
of the robot body 110. Also, the robot body 110 has a dust
discharge port 115 formed in the top thereof to discharge the dust,
collected in the first dust-collecting device 130, into the docking
station 200 when the robot cleaner 100 docks with the docking
station 200.
[0048] A brush 116 to sweep up the dust on the floor is rotatably
installed to the robot body 110 at a position adjacent to the inlet
hole 113. Also, an inlet pipe 117 is installed between the inlet
hole 113 and the first dust-collecting device 130 to connect them
with each other.
[0049] The dust discharge port 115 is provided with an
opening/closing device 140. The opening/closing device 140 closes
the dust discharge port 115 during the cleaning operation of the
robot cleaner 100, to prevent the suction force of the first
suction device 120 from leaking through the dust discharge port
115. Also, when it is desired to remove the dust collected in the
first dust-collecting device 130 after the robot cleaner 100 docks
with the docking station 200, the opening/closing device 140 opens
the dust discharge port 115, to allow the dust in the first
dust-collecting device 130 to move into the docking station
200.
[0050] The opening/closing device 140 includes an opening/closing
member 141 having one end hingedly coupled to the robot body 110 so
as to open or close the dust discharge port 115, and a spring (not
shown) to elastically bias the opening/closing member 141 in a
direction closing the dust discharge port 115.
[0051] Meanwhile, the robot cleaner 100 includes a charging battery
150 to supply power required for the operation thereof. The
charging battery 150 is connected to a charging terminal 151 of the
robot body 110. The charging terminal 151 protrudes outward from
the robot body 110 and can be charged by a commercial alternating
current source when the robot cleaner 100 docks with the docking
station 200.
[0052] As shown in FIG. 2, the docking station 200 includes a
station body 210, a second suction device 220 installed in the
station body 210 to generate a suction force, and a second
dust-collecting device 230 to collect the dust suctioned from the
first dust-collecting device 130 of the robot cleaner 100 by
operation of the second suction device 220. Although not shown in
the drawings, the second suction device 200 includes a suction
motor (not shown) and a blowing fan (not shown) to be rotated by
the suction motor.
[0053] The station body 210 has an extending portion 210a extending
forward to cover the top of the robot cleaner 100 when the robot
cleaner 100 docks with the docking station 200. The extending
portion 210a incorporates a suction channel 211 to guide the dust
suctioned through a dust suction port 331 into the second
dust-collecting device 230. A receiving region 210b is defined
below the extending portion 210a to receive the robot cleaner 100
when the robot cleaner 100 docks with the docking station 200.
[0054] The robot cleaner system according to an exemplary
embodiment further includes a docking device 300 to displace the
dust suction port 331 of the docking station 200, so as to allow
the dust suction port 331 to come into close contact with the dust
discharge port 115 of the robot cleaner 100 when the robot cleaner
100 docks with the docking station 200. The docking device 300 is
operated by a movement of the robot cleaner 100 without a separate
drive device. Hereinafter, the configuration of the docking device
300 will be described with reference to FIGS. 1 to 3.
[0055] FIG. 3 is a perspective view showing the configuration of
the docking device of the robot cleaner system according to an
exemplary embodiment. As shown in FIGS. 1 to 3, the docking device
300 includes a link member 310 coupled to the docking station 200
in a pivotally rotatable manner.
[0056] One end of the link member 310 is provided with a contact
portion 320 to come into contact with the robot cleaner 100 when
the robot cleaner 100 docks with the docking station 200. The other
end of the link member 310 is provided with a docking portion 330.
The dust suction port 331 is defined in the docking portion 330. If
the contact portion 320 of the link member 310 comes into contact
with the robot cleaner 100 that is moving to the docking station
200, the link member 310 performs a seesaw motion, thereby allowing
the dust suction port 331 to come into close contact with the dust
discharge port 115 of the robot cleaner 100.
[0057] The link member 310 has a rotating shaft 311 as a rotating
center thereof. The rotating shaft 311 is coupled to a frame 240
defining the bottom of the extending portion 210a of the docking
station 200. The rotating shaft 311 of the link member 310 is
preferably located adjacent to the contact portion 320. This is to
allow the docking portion 330 located at the opposite side of the
contact portion 320 to attain a relatively large pivotal rotation
angle even if the contact portion 320 has a small pivotal rotation
angle. Meanwhile, the frame 240 has upwardly protruding shaft
coupling portions 241 arranged by a predetermined interval. The
shaft coupling portions 241 have coupling holes 241a, respectively,
for the coupling of the rotating shaft 311 of the link member
310.
[0058] The contact portion 320 of the link member 310 extends
downward through a first opening 242 perforated in the frame 240,
to come into contact with an upper surface of the robot body 110
upon docking of the robot cleaner 100. The contact portion 320 may
be provided with a roller 321. The roller 321 serves to guide an
efficient movement of the contact portion 320 even in a state
wherein the contact portion 320 of the link member 310 comes into
contact with the robot cleaner 100.
[0059] Meanwhile, the robot cleaner 100 has a slope 118 to guide
the movement of the contact portion 320. The slope 118 is
configured to assure an upward pivotal rotation of the contact
portion 320 when the robot cleaner 100, which is in contact with
the contact portion 320, moves toward the docking station 200.
[0060] The frame 240 has a second opening 243 perforated at a
position corresponding to the docking portion 330 of the link
member 310. The dust suction port 331 defined in the docking
portion 330 is exposed to the outside below the frame 240 through
the second opening 243.
[0061] The docking device 300 may also include a sealing member 340
to seal a gap between the dust discharge port 115 of the robot
cleaner 100 and the dust suction port 331 of the docking station
200. The sealing member 340 may be fitted around the docking
portion 330 to surround the dust suction port 331. Specifically,
even in a state wherein the dust suction port 331 and the dust
discharge port 115 come into close contact with each other by the
docking device 300, there may still exist a gap between the dust
suction port 331 and the dust suction port 115. The sealing member
340 prevents the loss of a suction force through the gap.
[0062] A flexible joint pipe 350 having repeatedly formed pleats
(See reference numeral 350 in FIG. 2) is installed between the
docking portion 330 and the suction channel 211 of the docking
station 200. One end of the joint pipe 350 communicates with the
dust suction port 331, and the other end of the joint pipe 350
communicates with the suction channel 211. The joint pipe 350 is
flexibly folded or unfolded according to a movement of the docking
portion 330 when the docking portion 330 is pivotally rotated
vertically.
[0063] The docking device 300 further includes elastic members 360
to elastically bias the link member 310 such that the dust suction
port 331 of the docking portion 330 is spaced apart from the dust
discharge port 115 of the robot cleaner 100. The elastic members
360 are located between the rotating shaft 311 of the link member
310 and the docking portion 330, to elastically support the link
member 310. The link member 310 has fixing recesses 312 each fixing
one side of the associated elastic member 360. The frame 240 has
fixing recesses 244 each fixing the other side of the associated
elastic member 360. Thereby, each elastic member 360 is mounted
between the two fixing recesses 312 and 244.
[0064] Meanwhile, as shown in FIG. 2, the station body 210
incorporates a charging device 250 to charge the charging battery
150 of the robot cleaner 100. The charging device 250 is provided
at one side thereof with a power terminal 251, which will be
electrically connected with the charging terminal 151 upon docking
of the robot cleaner 100.
[0065] Hereinafter, the operation of the robot cleaner system
having the above described configuration will be described with
reference to FIGS. 1 to 5. FIGS. 4 and 5 are sectional views
illustrating the operation of the robot cleaner system according to
an exemplary embodiment.
[0066] If a cleaning operation begins, the robot cleaner 100 cleans
the floor by self-running thereof. In this case, the dust discharge
port 115 of the robot cleaner 100 is closed by the opening/closing
device 140, to prevent the suction force generated by the first
suction device 120 from leaking through the dust discharge port
115. With the suction force, dust on the floor is suctioned through
the inlet hole 113 and the inlet pipe 117, thereby being collected
in the first dust-collecting device 130.
[0067] If the dust over a predetermined level is accumulated in the
first dust-collecting device 130, the robot cleaner 100 stops the
cleaning operation and returns to the receiving region 210b of the
docking station 200 for the discharge of the dust. When the robot
cleaner 100 moves below the extending portion 210a as shown in FIG.
4, the docking portion 330 of the link member 310 keeps a
predetermined distance with the robot cleaner 100 under the
influence of an elastic force generated by the elastic members 360.
Accordingly, there is no interference between the docking portion
330 and the robot cleaner 100.
[0068] As shown in FIG. 5, if the robot cleaner 100 further moves
to come into contact with the contact portion 320 of the link
member 310, the contact portion 320 is guided by the slope 118 of
the robot body 110, so as to be pivotally rotated upward by a
predetermined angle. Thereby, the docking portion 330, located at
the opposite side of the contact portion 320 about the rotating
shaft 311, is pivotally rotated downward, thereby causing the dust
suction port 331 of the docking portion 330 to come into close
contact with the dust discharge port 115 of the robot cleaner
100.
[0069] After a docking operation is completed as described above,
the second suction device 220 of the docking station 200 begins to
operate. With a suction force generated by the second suction
device 200, the opening/closing device 140 of the robot cleaner 100
is opened, and the dust collected in the first dust-collecting
device 130 is suctioned into the second dust-collecting device 230
by sequentially passing through the dust discharge port 115, the
dust suction port 331, the joint pipe 350, and the suction channel
211.
[0070] Meanwhile, the charging terminal 151 of the robot cleaner
100 is connected to the power terminal 251 of the docking station
200, to charge the charging battery 150 of the robot cleaner
100.
[0071] If the dust in the first dust-collecting device 130 is
completely removed, the operation of the second suction device 200
is stopped, and the robot cleaner 100 undocks with the docking
station 200, to again perform a cleaning operation. If the contact
portion 320 of the link member 310 is separated from the robot body
110 by a movement of the robot cleaner 100, the contact portion 320
is pivotally rotated downward by the elastic force of the elastic
members 360, and the docking portion 330 is pivotally rotated
upward. Thereby, the dust suction port 331 of the docking portion
330 is spaced apart from the dust discharge port 115 of the robot
cleaner 100 by a predetermined distance, and the robot cleaner 100
can move to a cleaning region.
[0072] FIG. 6 is a sectional view illustrating the configuration of
a robot cleaner system according to another exemplary embodiment.
FIG. 7 is a sectional view showing a partial configuration of FIG.
6. In the present exemplary embodiment, a vacuum cleaner is
connected to the docking station, to suction dust in the robot
cleaner. In the following description, the same reference numerals
will be used to refer to the same elements as those of the
exemplary embodiment shown in FIGS. 1 to 5, and only characteristic
items of the present exemplary embodiment will be described.
[0073] As shown in FIGS. 6 and 7, the robot cleaner system
according to the present exemplary embodiment includes a vacuum
cleaner 400 to be connected to a docking station 200'. The vacuum
cleaner 400 is used to suction dust collected in the robot cleaner
100 when the robot cleaner 100 docks with the docking station
200'.
[0074] The vacuum cleaner 400 is separable from the docking station
200'. Accordingly, a user can clean the floor by using the
separated vacuum cleaner 400 as a general vacuum cleaner. That is,
once being separated from the docking station 200', the user can
clean the floor while carrying the vacuum cleaner 400. Hereinafter,
the vacuum cleaner 400 will be referred to as a manual vacuum
cleaner for distinction with the robot cleaner 100.
[0075] The manual vacuum cleaner 400 generally includes a suction
device 420 and a dust-collecting device 430. When the manual vacuum
cleaner 400 is connected to the docking station 200' in order to
suction the dust collected in the robot cleaner 100, the docking
station 200' has no need for a suction device or dust-collecting
device, and the overall configuration of the docking station 200'
can be simplified.
[0076] The manual vacuum cleaner 400 includes a suctioning mouth
unit 440 to suction dust or dirt on the floor, and a suction pipe
450 to connect the suction mouth unit 400 and the vacuum cleaner
body 410 with each other so as to transmit a suction force
generated from the suction device 420 to the suctioning mouth unit
440.
[0077] The suction pipe 450 includes a first suction pipe 451 and a
second suction pipe 452. A handle member 453, provided with a
variety of operating buttons, is located between the first suction
pipe 451 and the second suction pipe 452. The first suction pipe
451 is a flexible pleated pipe. The first suction pipe 451 has one
end connected to a vacuum cleaner body 410, and the other end
connected to the handle member 453. The second suction pipe 452 has
one end connected to the suctioning mouth unit 440 and the other
end connected to the handle member 453. The vacuum cleaner body 410
incorporates a suction channel 411 to connect the first suction
pipe 451 and the dust-collecting device 430 with each other.
[0078] The manual vacuum cleaner 400 can be seated on the top of
the docking station 200' when being connected with the docking
station 200'.
[0079] The docking station 200' has a connecting port 212
perforated in the top thereof for the connection of the manual
vacuum cleaner 400. The connecting port 212 communicates with the
dust suction port 331 of the docking station 200' through the joint
pipe 351 and a docking pipe 213. The manual vacuum cleaner 400
includes a connecting pipe 460 to be fitted into the connecting
port 212 of the docking station 200' when the manual vacuum cleaner
400 is seated on the docking station 200'. One end of the
connecting pipe 460 communicates with the suction channel 411 of
the manual vacuum cleaner 400.
[0080] A path converter 470 is provided at a junction position of
the connecting pipe 460 and the suction channel 411, to selectively
open or close the connecting pipe 460 and the suction channel 411.
While the user cleans the floor by use of the manual vacuum cleaner
400, the path converter 470 closes the connecting pipe 460 and
opens the suction channel 411, to apply the suction force of the
suction device 420 to the suctioning mouth unit 440. Also, when the
manual vacuum cleaner 400 is used to suction the dust collected in
the robot cleaner 100, the path converter 470 closes the suction
channel 411 to communicate the connecting pipe 460 with a part of
the suction channel 411. Thereby, the suction force of the suction
device 420 is applied to the first dust-collecting device 130 of
the robot cleaner 100 through the dust suction port 331 and the
dust discharge port 115.
[0081] When it is desired to clean the floor by use of the manual
vacuum cleaner 400, the user can separate the manual vacuum cleaner
400 from the docking station 200', to use the manual vacuum cleaner
400 as a general vacuum cleaner.
[0082] On the other hand, when it is desired to clean the floor by
use of the robot cleaner 100, the manual vacuum cleaner 400 is
seated on the docking station 200'. In this seating state, the
connecting pipe 460 of the manual vacuum cleaner 400 is coupled
with the docking pipe 213 of the docking station 200'. With this
configuration, if the robot cleaner 100 returns to the docking
station 200' for the discharge of the dust, as described above with
reference to FIGS. 4 and 5, the dust suction port 331 of the
docking station 200' comes into close contact with the dust
discharge port 115 of the robot cleaner 100 by the docking device
300.
[0083] Once the docking of the robot cleaner 100 is completed, the
suction device 420 of the manual vacuum cleaner 400 begins to
operate. Thereby, the opening/closing device 140 of the robot
cleaner 100 is opened by the suction force of the suction device
420, and the dust collected in the first dust-collecting device 130
of the robot cleaner 100 can be suctioned into the dust-collecting
device 430 by passing through the dust discharge port 115, the dust
suction port 331, the joint pipe 350, the docking pipe 213, the
connecting pipe 460, and the suction channel 411 sequentially.
[0084] Meanwhile, although the above embodiments describe the
docking device 300 installed to the docking station 200 or 200', it
may be considered that the docking device 300 can be installed to
the robot cleaner 100 by a simple design change. In this case, when
the robot cleaner docks with the docking station, the contact
portion of the link member will be pivotally rotated as it comes
into contact with the docking station. Also, the docking portion of
the link member will define the dust discharge port of the robot
cleaner such that the dust discharge port comes into close contact
with the dust suction port of the docking station.
[0085] As apparent from the above description, according to
exemplary embodiments, dust collected in a robot cleaner can be
transferred into a docking station in a state wherein a dust
discharge port of the robot cleaner comes into close contact with a
dust suction port of the docking station. As a result, exemplary
embodiments have the effect of preventing the loss of a suction
force or the leakage of the dust between the dust suction port and
the dust discharge port.
[0086] Further, according to exemplary embodiments, the close
contact between the dust discharge port and the dust suction port
can be accomplished by operation of a docking device without an
additional drive device. Accordingly, exemplary embodiments have
the effect of preventing the configuration of the resulting system
from being complicated due to the additional drive device, and
consequently, reducing the costs of parts.
[0087] Although a few exemplary embodiments have been shown and
described, it would be appreciated by those skilled in the art that
changes may be made in these exemplary embodiments, the scope of
which is defined in the claims and their equivalents.
* * * * *