GB2404139A - Dust receptacle for a robotic vacuum cleaner - Google Patents

Dust receptacle for a robotic vacuum cleaner Download PDF

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Publication number
GB2404139A
GB2404139A GB0415156A GB0415156A GB2404139A GB 2404139 A GB2404139 A GB 2404139A GB 0415156 A GB0415156 A GB 0415156A GB 0415156 A GB0415156 A GB 0415156A GB 2404139 A GB2404139 A GB 2404139A
Authority
GB
United Kingdom
Prior art keywords
dust
receptacle
air
outlet
cleaner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB0415156A
Other versions
GB0415156D0 (en
GB2404139B (en
Inventor
Ki-Man Kim
Jeong-Gon Song
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Gwangju Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020040034150A external-priority patent/KR100544479B1/en
Application filed by Samsung Gwangju Electronics Co Ltd filed Critical Samsung Gwangju Electronics Co Ltd
Publication of GB0415156D0 publication Critical patent/GB0415156D0/en
Publication of GB2404139A publication Critical patent/GB2404139A/en
Application granted granted Critical
Publication of GB2404139B publication Critical patent/GB2404139B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/1409—Rigid filtering receptacles
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/14—Bags or the like; Rigid filtering receptacles; Attachment of, or closures for, bags or receptacles
    • A47L9/149—Emptying means; Reusable bags
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2201/00—Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Cleaning In General (AREA)
  • Electric Suction Cleaners (AREA)

Abstract

The dust receptacle comprises a body 53 having an air inlet 61 and an air outlet 56 and is detachably mounted in the dust collecting chamber of the robotic cleaner. The air outlet has a cover 55 provided with a filter for opening and closing the air outlet. Also provided is a dust outlet 67 which is adapted to be connected to a separate source of suction to easily and cleanly remove the dust from the receptacle when it is removed from the cleaner.

Description

1 24041 39 P51 3982GH Dust Receptacle for a Robotic Vacuum Cleaner This
invention relates to a dust receptacle for a robotic vacuum cleaner, and in particular to a detachable dust receptacle mounted in a dustcollecting chamber of a robotic vacuum cleaner, and to a method for removing dust collected therein.
In general, dust and air are sucked into a robotic vacuum cleaner together. Then, the dust is collected in a dust-collecting chamber, and only the air is discharged to the outside. To remove the dust collected in the dust-collecting chamber, a user has to open a door facing the outside of the robotic vacuum cleaner, or take out a dust receptacle which is mounted in the dust-collecting chamber.
However, such conventional ways of removing the collected dust are inconvenient, since all the processes are manually performed by the user. If the robotic vacuum cleaner does not have a dust receptacle, the user has to overturn the cleaner in order to remove the dust collected inside; and, if the cleaner has a dust receptacle, the user must detach and reattach the dust receptacle. Both cases are troublesome.
In addition, to make the robotic cleaner compact and light, the dust receptacle is designed to be smaller than the dust receptacle or paper bag of a conventional (non-robotic) vacuum cleaner. Therefore, the user needs to empty the dust receptacle of the robotic cleaner more frequently.
Moreover, the known robotic vacuum cleaner has a very narrow dust outlet compared to the size of dust-collecting chamber. Therefore, it is hard to remove the dust, and the dust often remains in the dust-collecting chamber even after "emptying" the dust receptacle. Such remaining dust may gradually increase, adhering inside the cleaner and getting harder to remove. As a result, suction efficiency deteriorates. Therefore, the user must shake the robotic cleaner or the dust receptacle vigorously for effective removal of the dust. Even then, the dust may not be completely removed.
An aim of the invention is to alleviate at least the above problems and/or disadvantages, and to provide at least the advantages described below. Accordingly, an aim of the invention is to provide a dust receptacle for a robotic vacuum cleaner which can be emptied easily, and a method for removing dust collected therein. s
The present invention provides a dust receptacle comprising: a receptacle body having an air inlet and an air outlet, the receptacle body being detachably mountable in a dust-collecting chamber of a robotic vacuum cleaner; a cover movably attached to the receptacle body to open and close the air outlet; lO and a dust outlet formed in the receptacle body.
In a preferred embodiment, the cover is provided with a filter to prevent the collected dust from flowing out through the air outlet.
Advantageously, the receptacle body further comprises an air inlet pipe which protrudes inwardly from the air inlet, and a handle disposed adjacent to the dust outlet.
Preferably, the dust receptacle further comprises a valve formed at an opening of the air inlet pipe to close the opening by its own weight, the valve being openable by pressure of air flowing in through the air inlet.
Advantageously, the dust receptacle further comprises a seal associated with the dust outlet. Conveniently, the seal is made of a resilient material so as to be a tight fit with respect to the dust outlet.
A user can conveniently mount or separate the dust receptacle using the handle. Further, by inwardly protruding the air inlet pipe unit and providing the valve, the drawn-in air including dust is prevented from flowing back.
Preferably, the seal has a flanged handle for easy separation from the dust outlet.
The invention also provides a method of removing dust collected in a robotic vacuum cleaner, the method comprising the steps of collecting dust, from air drawn in through an air inlet of the cleaner, in a dust receptacle mounted in a dust-collecting chamber of the cleaner, discharging the air through a discharge port of the cleaner, and removing the dust collected in the dust receptacle by connecting an air inlet of a separate suction unit to the dust outlet of the dust receptacle.
The invention will now be described in greater detail, by way of example, with reference to the drawings, in which: Figure 1 is a perspective view of a robotic vacuum cleaner including a dust receptacle constructed according to the invention; Figure 2is an enlarged, exploded perspective view of the main parts of the cleaner of Figure I, showing the structure that enables the dust receptacle to be removed from a dust-collecting chamber; Figure 3 is a longitudinal sectional view of the cleaner, with the dust receptacle received in the dust-collecting chamber; Figure 4is an exploded perspective view of the dust receptacle; Figure 5is a flowchart explaining a method for removing the dust collected in the cleaner; and Figure 6 is an exploded perspective view of a second form of dust receptacle constructed according to the invention.
Referring to the drawings, Figures 1 and 2 show a robotic vacuum cleaner 20 having an upper casing 41. An image-capturing unit exposure hole 42 is formed at the centre of the upper casing, and a display window 43 and a plurality of indicator lamp exposure holes 45 are formed at one side of the upper casing.
Referring to Figures 2 and 3, the cleaner 20 comprises a dust suction unit 21 for drawing in dust-carrying air, and a drive unit 31. The cleaner 20 has an image-capturing unit 35 and a transceiver (not shown) for checking the position of the cleaner and obstacles as the cleaner is driven over a surface to be cleaned.
The dust suction unit 21 comprises a dust-collecting chamber 23 which is upwardly open, a door 25 for closing the opening of the dust-collecting chamber, and a dust receptacle 51 which is detachably mounted in the dustcollecting chamber. A motor 27 is mounted at one side of the dustcollecting chamber 23, the motor generating, in use, a suction force. The air suction unit 21 also comprises a nozzle unit (not shown) for drawing dust-carrying air into the dust-collecting chamber 23.
The dust-collecting chamber 23 (see Figure 3) has an air suction port 22 in its base, and an air discharge port 24 in a side wall thereof. The air suction port 22 is defined by an annular flange 22' protruding upwards into the dust-collecting chamber 23. A hook hole (not shown) may be formed in the upper opening of the dust-collecting chamber 23.
The door 25 has a hook (not shown) for engagement with a hook groove formed in the dust-collecting chamber 23 for detachably fixing the door with respect to the upper opening. The nozzle unit is mounted at the lower part of the dust-collecting chamber 23.
The dust receptacle 51 (see Figure 4) has a receptacle body 53 defining a dust-collecting space and a cover 55 removably attached to the receptacle body. One side wall of the receptacle body 53 defines an opening 54, that side wall being adjacent to that wall of the dust-collecting chamber 23 in which the air discharge port 24 is formed. The cover 55 has an air outlet 56 aligned with the air discharge port 24. A filter 91 is connected to the air outlet 56 of the cover 55.
The receptacle body 53 has an air inlet 61 (see Figure 3) on the base thereof. The air inlet 61 is in alignment with the air suction port 22 of the dust-collecting chamber 23, and is sized to receive the flange 22' of the air suction port. Accordingly, dust-carrying air flows into the dust receptacle 53 through the air suction port 22. The air inlet 61 of the receptacle body 53 is defined by an upwardly-protruding air inlet pipe 63, a valve 65 being mounted at the open upper end of the air inlet pipe. The valve 65 covers the open upper end of the air inlet pipe 63 when it pivots downwards under its own weight, and opens due to air pressure flowing into the receptacle body 53 from the outside.
The receptacle body 53 also has an upwardly-open dust outlet 67 at one end of its upper side. The dust outlet 67 is exposed when the door 25 of the dust-collecting chamber 23 is open. In this state, the user connects a suction unit of a conventional vacuum cleaner (not shown) or a handy cleaner (not shown) to the dust outlet 67, so that the dust collected inside can be discharged into such an additional vacuum cleaner. It is preferable, therefore, that the additional vacuum cleaner has a suction inlet that complements the dust outlet 67 of the dust receptacle 51 of the robotic cleaner 20.
An annular groove (not shown) extends around the dust outlet 67 of the receptacle body 53, the size of the groove corresponding to the size of the suction inlet of the additional vacuum cleaner. A gasket 69 is mounted between the groove and the suction inlet of the additional vacuum cleaner to provide an air-tight seal therebetween.
The upper surface of the receptacle body 53 is provided with a central handle 71. The handle 71 is also exposed when the door 25 of the dustcollecting chamber 23 is open.
The handle 71 can be grasped by a user to attach and detach the dust receptacle 51. The handle 71 is constituted by an indent formed in the upper surface of the receptacle body 53, and can be integrally formed with the receptacle body by injection moulding. The receptacle body 53 may be made of a transparent material, so that the user can observe the amount of dust collected therein.
The cover 55 can be formed in various manners so that it can easily be mounted and detached with respect to the receptacle body 53. For example, a connection projection may be formed at the circumference of the cover 55, and a connection groove 52 may be formed in the receptacle body 53. In addition, a projection 57 is formed at the upper side of the cover 55, this projection being detachably fixable within a complementary slot 52 formed to the upper surface of the receptacle body 53 adjacent to the opening 54. The projection 57 can be removed from the slot 52 to separate the cover 55 from the receptacle body 53. A gasket 93 is provided inside the receptacle body 53, along the circumference thereof, to provide an air tight fit with the receptacle body.
The filter 91, which is removably mounted at the air outlet 56 of the cover 55, has a plurality of filter windows formed in a circumferential surface, the windows being covered by a porous filtering member. Fine dust included in the air which is discharged through the air outlet 56 can, therefore, be filtered by the filter 91.
A method for removing dust collected in the cleaner 20 will now be described with reference to the flowchart of Figure 5.
When a cleaning command is issued, the robotic cleaner 20 starts running in order to carry out a cleaning operation - step S 1. The cleaner 20 travels about within a area to be cleaned, communicating with a control unit (not shown). While running, the cleaner 20 diverts to avoid obstacles in its path, according to a general running pattern which has been suggested by the present applicant. During running, a vacuum generator mounted in the cleaner 20 is driven to perform suction for the cleaning operation - step S2.
When the vacuum generator is driven, dust-carrying air is drawn in through the air suction port 22. The drawn-in air moves along the air inlet pipe 63 of the dust receptacle 51, and flows into the dust receptacle 51 pushing aside the valve 65. Then, the air is discharged to the outside through the air outlet 24. At this time, dust in the discharged air is filtered by the filter 91, and thus, the dust is collected in the dust receptacle 51.
As time goes by, the amount of dust in the dust receptacle 51 gradually increases. The cleaning work is stopped as the vacuum generator stops driving. At this time, the valve 65 of the dust receptacle S1 closes the open end of the air inlet pipe 63 as it pivots downwards under its own weight (there being no upwards air flow to keep the valve open). Accordingly, the filtered dust is prevented from flowing back to the air suction port 22. The user can check the amount of the dust collected in the dust receptacle S 1 by opening the door 25 of the dust-collecting chamber 23. Also, the door 25 can be made of a transparent material, so that the user can easily check the amount of collected dust without having to open the door 25.
The present invention suggests two methods for removing the dust collected in the dust receptacle S1 - step S3. One method is to withdraw the dust receptacle S1, and the other is to use the additional vacuum cleaner without withdrawing the dust receptacle S1. Either of them is selected in step S4. When the dust is removed by the additional S cleaner (step S6), the door 25 of the dust-collecting chamber 23 should be open. Next, the additional cleaner is operated with the suction port of the additional cleaner aligned with the outlet 67 of the dust receptacle 51. Therefore, the dust in the dust receptacle S 1 can be removed rapidly.
However, when the additional cleaner is not used, dust can be removed by separating the dust receptacle S1 (step SS). The dust receptacle S1 is withdrawn from the dust-collecting chamber 23 simply by grasping the handle 71 formed on the upper cover thereof. After opening the cover 55 of the dust receptacle 51, the dust in the dust receptacle can be easily emptied (step S7). The cover SS is then repositioned after the IS dust receptacle S1 is remounted in the dust-collecting chamber 23 (step S8). Cleaning Figure 6 shows a modified form of dust receptacle S1 constructed according to the invention. Here, the dust receptacle 51 comprises a seal 100 for sealing or opening the dust outlet 67 formed in the receptacle body 53. The seal 100 has a flanged handle 110 for easy movement of the seal, and can be tightly fitted around the outer circumference of the dust outlet 67, thereby sealing the outlet. Preferably, the seal 67 is made of a resilient material such as rubber.
While the cleaner 20 is working, the seal 100 tightly closes the dust outlet 67.
Therefore, the dust collected in the dust receptacle 51 is prevented from escaping into the dust-collecting chamber 23 (see Figure 2) by flowing out through the dust outlet 67.
Additionally, loss of suction force due to the outlet 67 being open is prevented. To remove the dust collected in the dust receptacle 51, the user opens the seal 100 using the flanged handle 110, and connects the suction port of an additional vacuum cleaner (not shown) to draw in the collected dust, thereby cleaning the dust receptacle.
As shown in Figure 6, the seal 100 may be a tight fit around the outer circumference of the dust outlet 67. However, the seal 100 may also fit inside the inner circumference of the dust outlet 67.
In both forms of dust receptacle 51 described above, the dust collected in the cleaner 20 can be removed in a convenient way.
Moreover, each of the dust receptacles 51 can be cleaned using an additional, conventional vacuum cleaner, thereby obviating the need to detach the dust receptacle of such a small-capacity robotic cleaner every time for cleaning.
In addition, the user does not have any contact with the dust when the dust receptacle 51 is cleaned by the additional cleaner, and the user can empty or dump a paper bag of that cleaner when the paper bag is full.
While the invention has been shown and described with reference to certain embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein.

Claims (10)

  1. Claims 1. A dust receptacle comprising: a receptacle body having an air
    inlet and an air outlet, the receptacle body being detachably mountable in a dust-collecting chamber of a robotic vacuum cleaner; a cover movably attached to the receptacle body to open and close the air outlet; and a dust outlet formed in the receptacle body.
  2. 2. A dust receptacle as claimed in claim 1, wherein the cover is provided with a filter to prevent the collected dust from flowing out through the air outlet.
  3. 3. A dust receptacle as claimed in claim 1 or claim 2, wherein the receptacle body further comprises an air inlet pipe which protrudes inwardly from the air inlet, and a handle disposed adjacent to the dust outlet.
  4. 4. A dust receptacle as claimed in claim 3, further comprising a valve formed at an opening of the air inlet pipe to close the opening by its own weight, the valve being openable by pressure of air flowing in through the air inlet.
  5. 5. A dust receptacle as claimed in any one of claims 1 to 4, further comprising a seal associated with the dust outlet.
  6. 6. A dust receptacle as claimed in claim 5, wherein the seal is made of a resilient material so as to be a tight fit with respect to the dust outlet.
  7. 7. A dust receptacle as claimed in claim 5, wherein the seal has a flanged handle for easy separation from the dust outlet.
  8. 8. A method of removing dust collected in a robotic vacuum cleaner, the method comprising the steps of collecting dust, from air drawn in through an air inlet of the cleaner, in a dust receptacle mounted in a dustcollecting chamber of the cleaner, discharging the air through a discharge port of the cleaner, and removing the dust collected in the dust receptacle by connecting an air inlet of a separate suction unit to the dust outlet of the dust receptacle.
  9. 9. A dust receptacle for a robotic vacuum cleaner, the dust receptacle being substantially as hereinbefore described with reference to, and as illustrated by, Figures 1 to 4 or Figures 1 to 3 and 6 of the drawings.
  10. 10. A dust removal method as claimed in claim 8 and substantially as hereinbefore described with reference to Figure 5 of the drawings.
GB0415156A 2003-07-24 2004-07-06 Dust receptacle for a robotic vacuum cleaner Expired - Fee Related GB2404139B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20030051143 2003-07-24
KR1020040034150A KR100544479B1 (en) 2003-07-24 2004-05-14 A dust collector of robot-cleaner, and method for cleaning dust collected therein

Publications (3)

Publication Number Publication Date
GB0415156D0 GB0415156D0 (en) 2004-08-11
GB2404139A true GB2404139A (en) 2005-01-26
GB2404139B GB2404139B (en) 2005-08-31

Family

ID=32775315

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0415156A Expired - Fee Related GB2404139B (en) 2003-07-24 2004-07-06 Dust receptacle for a robotic vacuum cleaner

Country Status (10)

Country Link
US (1) US20050015920A1 (en)
JP (1) JP2005040597A (en)
CN (1) CN1307928C (en)
AU (1) AU2004202836B2 (en)
DE (1) DE102004035760A1 (en)
FR (1) FR2857847A1 (en)
GB (1) GB2404139B (en)
NL (1) NL1026703C2 (en)
RU (1) RU2277372C2 (en)
SE (1) SE526979C2 (en)

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GB2404139B (en) 2005-08-31
DE102004035760A1 (en) 2005-02-17
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FR2857847A1 (en) 2005-01-28
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SE526979C2 (en) 2005-11-29
AU2004202836B2 (en) 2006-03-09
JP2005040597A (en) 2005-02-17
CN1307928C (en) 2007-04-04
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NL1026703A1 (en) 2005-01-25
US20050015920A1 (en) 2005-01-27

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