EP4054392A1 - Rad und rädergeführtes haushaltsgerät - Google Patents
Rad und rädergeführtes haushaltsgerätInfo
- Publication number
- EP4054392A1 EP4054392A1 EP20797054.2A EP20797054A EP4054392A1 EP 4054392 A1 EP4054392 A1 EP 4054392A1 EP 20797054 A EP20797054 A EP 20797054A EP 4054392 A1 EP4054392 A1 EP 4054392A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- segments
- wheel
- impeller body
- household appliance
- designed
- 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.)
- Withdrawn
Links
- 238000004140 cleaning Methods 0.000 claims description 19
- 241001212149 Cathetus Species 0.000 claims description 7
- 239000013536 elastomeric material Substances 0.000 claims description 2
- 230000009194 climbing Effects 0.000 description 6
- 230000001154 acute effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
- A47L9/2852—Elements for displacement of the vacuum cleaner or the accessories therefor, e.g. wheels, casters or nozzles
-
- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4072—Arrangement of castors or wheels
-
- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/24—Floor-sweeping machines, motor-driven
-
- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/32—Carpet-sweepers
-
- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
-
- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4061—Steering means; Means for avoiding obstacles; Details related to the place where the driver is accommodated
-
- 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
- A47L9/009—Carrying-vehicles; Arrangements of trollies or wheels; Means for avoiding mechanical obstacles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/03—Tread patterns
- B60C11/0311—Patterns comprising tread lugs arranged parallel or oblique to the axis of rotation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C7/00—Non-inflatable or solid tyres
- B60C7/10—Non-inflatable or solid tyres characterised by means for increasing resiliency
- B60C7/105—Non-inflatable or solid tyres characterised by means for increasing resiliency using foam material
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C2200/00—Tyres specially adapted for particular applications
Definitions
- the invention relates to a wheel comprising a hub and an impeller body which has a running surface on the outer circumference.
- wheel-guided household appliances such as cleaning robots, for example, it is problematic that they only have a limited climbing ability. If a cleaning robot drives vertically or at an acute angle in the direction of an edge, the cleaning robot can often not overcome this, even if the edge is not particularly high. In this respect, depending on the design of the
- the invention is based on the object of providing a wheel which has improved climbing ability.
- the wheel according to the invention comprises a hub and an impeller body, which has a running surface on the outer circumference, the running surface being formed from segments, the segments being essentially flat, with first segments in the direction of an end face of the
- Impeller body and second segments are inclined in the direction of the other end face of the impeller body.
- a wheel designed in this way rests on the ground along a meandering contact zone from one end face to the other end face of the impeller. If the wheel reaches an obstacle, for example an edge, the meandering contact zone results in an angle of incidence which is always smaller than 90 °. This reduces the lever arm in the contact area between the obstacle and the center of gravity of the wheel. The lever arm, together with the weight on the wheel, determines the torque required to overcome the obstacle. Since the lever arm is shortened due to the angle of incidence, the required torque is also reduced accordingly. This makes it possible to overcome an obstacle with a comparatively low torque. This is particularly advantageous in connection with autonomously driving household appliances which only have limited drive power and small wheel diameters.
- the first segments and the second segments each span a triangle. This geometry enables a particularly large selectable range of inclinations which the segments can achieve in relation to the axial direction of the running surface.
- first segments and the second segments preferably abut one another in a line.
- the running surface is formed exclusively from segments positioned at an angle to one another.
- First segments and second segments, viewed over the circumference of the running surface, preferably alternate.
- first segments and second segments are arranged alternately distributed over the circumference of the running surface.
- the segments are preferably designed in such a way that the first segments and the second segments adjoin one another along the cathetus.
- the contact areas in the area of the cathetus form the contact zone over which the wheel rests on the ground.
- the contact zone is designed in a meandering shape and points along the abutting cathetus from one end face of the wheel to the other end face of the wheel and back again.
- the abutting edges of the segments which form the contact zone are preferably designed in such a way that a circular envelope results when viewed over the circumference.
- the abutting edges or cathets of the segments are arched radially in such a way that a circular contact zone results when viewed from the side of the wheel. This enables the bike to roll evenly while maintaining the same improved climbing behavior.
- the segments can be provided with a profile.
- the profiling can for example consist of grooves running in the axial direction. The profiling improves the rolling behavior on smooth surfaces.
- the impeller body can consist of an elastomeric material.
- the material of the impeller body is foamed.
- a running wheel body designed in this way has a very smooth running and good climbing ability and can be manufactured inexpensively.
- the impeller body and / or the hub can be designed in such a way that a cavity is enclosed between the impeller body and the hub.
- the cavity is preferably annular and is located between the impeller body and the hub. The cavity results in a resilient behavior of the wheel, which is particularly advantageous on uneven surfaces and enables vibration-free movement.
- a wheeled household appliance according to the invention comprises at least one wheel according to the invention.
- Household appliances are mostly provided with small wheels which have only limited climbing ability.
- the wheel according to the invention improves the climbing behavior, so that the household appliance has improved handling and improved usage properties.
- the household appliance is designed to move autonomously.
- the household appliance is equipped with a motor drive, preferably an electric motor with an accumulator, and one or more wheels according to the invention.
- the driven wheels are particularly preferably designed in the manner according to the invention.
- the household appliance can be designed as a cleaning robot.
- An advantageous cleaning robot comprises two wheels driven by an electric motor, which are designed according to the invention.
- the cleaning robot is provided with a third wheel, which is designed as a roller wheel.
- the third wheel can be rotatably mounted in the main body of the cleaning robot in such a way that the cleaning robot can change direction via the third wheel.
- the cleaning robot moves autonomously through a room to be cleaned and carries out cleaning work. Due to the inventive design of the wheels, the robot is suitable for overcoming obstacles such as carpet edges and the like. This increases the radius of action that can be reached by the cleaning robot.
- Fig. 2 shows a cleaning robot
- FIG. 1 shows a wheel 1, comprising a hub 2 and an impeller body 3, the impeller body 3 having a running surface 4 on the outer circumference.
- the hub 2 is made of plastic.
- the impeller body 3 consists of a foamed elastomer.
- An annular cavity is arranged between the hub 2 and the impeller body 3.
- the running surface 4 is formed from segments 5, 6, the segments 5, 6 being essentially flat.
- First segments 5 are inclined in the direction of one end face 7 of the impeller body 3 and second segments 6 are inclined in the direction of the other end face 8 of the impeller body 3.
- the first segments 5 and the second segments 6 each span a triangle, the first segments 5 and the second segments 6 adjoining one another linearly along the cathetus.
- an abutting edge 9 is formed, which forms a contact zone with the ground on which the wheel 1 moves.
- the abutting edges 9 of the segments 5, 6, that is to say the adjoining cathets, are designed in such a way that, viewed in the side view, a circular envelope results over the circumference.
- the abutting edges 9 are arched radially outward. The bulge is greatest in the central area of the cathetus and decreases in the direction of the end faces.
- the segments 5, 6 are provided with a profile 10 which, in the present embodiment, is in the form of grooves running in the axial direction.
- FIG. 2 shows a wheeled household appliance which, in the present exemplary embodiment, is designed as an autonomously driving household appliance in the form of a cleaning robot 11.
- the cleaning robot 11 comprises a base body 13 with an underside from which two wheels 1 protrude, as described in FIG. 1.
- the wheels 1 are driven by an electric motor.
- the cleaning robot 11 is provided with an electric motor, an accumulator and a belt drive, the belt drive with the wheels 1 is effectively connected.
- a cleaning device 14, in the present case a brush arrangement, is assigned to the underside of the base body 13.
- the cleaning robot 11 is also equipped with a third wheel 12 which is designed in the shape of a cylinder.
- the third wheel 12 is pivotably mounted in the base body 13 so that the cleaning robot 11 can change direction independently.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Suction Cleaners (AREA)
- Tires In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019130092.4A DE102019130092B4 (de) | 2019-11-07 | 2019-11-07 | Rad und rädergeführtes Haushaltsgerät |
| PCT/EP2020/079207 WO2021089301A1 (de) | 2019-11-07 | 2020-10-16 | Rad und rädergeführtes haushaltsgerät |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4054392A1 true EP4054392A1 (de) | 2022-09-14 |
Family
ID=73014482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20797054.2A Withdrawn EP4054392A1 (de) | 2019-11-07 | 2020-10-16 | Rad und rädergeführtes haushaltsgerät |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20220395157A1 (de) |
| EP (1) | EP4054392A1 (de) |
| CN (1) | CN114599260B (de) |
| DE (1) | DE102019130092B4 (de) |
| WO (1) | WO2021089301A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD1032492S1 (en) * | 2022-11-01 | 2024-06-25 | Brian Horowitz | Wheel |
| USD1028857S1 (en) * | 2022-11-01 | 2024-05-28 | Brian Horowitz | Wheel |
| USD1032452S1 (en) | 2022-11-01 | 2024-06-25 | Brian Horowitz | Wheel |
| USD1030596S1 (en) | 2022-11-01 | 2024-06-11 | Brian Horowitz | Wheel |
| USD1035531S1 (en) | 2022-11-01 | 2024-07-16 | Brian Horowitz | Wheel |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4572261A (en) * | 1983-12-27 | 1986-02-25 | The Goodyear Tire & Rubber Company | Pneumatic tire tread |
| US6431235B1 (en) | 2000-05-11 | 2002-08-13 | Richard A. Steinke | Non-pneumatic tire and rim combination |
| DE102012108189A1 (de) | 2012-09-04 | 2014-03-06 | Vorwerk & Co. Interholding Gmbh | Selbsttätig verfahrbares Bodenstaub-Aufsammelgerät und Laufrad, insbesondere für ein Bodenstaub-Aufsammelgerät |
| KR102102228B1 (ko) * | 2013-12-18 | 2020-04-20 | 엘지전자 주식회사 | 자동 청소기 |
| DE102017118384A1 (de) * | 2017-08-11 | 2019-02-14 | Vorwerk & Co. Interholding Gmbh | Sich selbsttätig fortbewegendes Bodenbearbeitungsgerät |
-
2019
- 2019-11-07 DE DE102019130092.4A patent/DE102019130092B4/de not_active Expired - Fee Related
-
2020
- 2020-10-16 US US17/774,866 patent/US20220395157A1/en not_active Abandoned
- 2020-10-16 CN CN202080075345.7A patent/CN114599260B/zh not_active Expired - Fee Related
- 2020-10-16 WO PCT/EP2020/079207 patent/WO2021089301A1/de not_active Ceased
- 2020-10-16 EP EP20797054.2A patent/EP4054392A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| CN114599260A (zh) | 2022-06-07 |
| CN114599260B (zh) | 2023-06-02 |
| WO2021089301A1 (de) | 2021-05-14 |
| DE102019130092B4 (de) | 2022-02-17 |
| DE102019130092A1 (de) | 2021-05-12 |
| US20220395157A1 (en) | 2022-12-15 |
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Legal Events
| Date | Code | Title | Description |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| 17P | Request for examination filed |
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| 18D | Application deemed to be withdrawn |
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