EP3261851A1 - Multidirectional wheel and method for the production thereof - Google Patents
Multidirectional wheel and method for the production thereofInfo
- Publication number
- EP3261851A1 EP3261851A1 EP16706802.2A EP16706802A EP3261851A1 EP 3261851 A1 EP3261851 A1 EP 3261851A1 EP 16706802 A EP16706802 A EP 16706802A EP 3261851 A1 EP3261851 A1 EP 3261851A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wheel
- shells
- multidirectional
- receptacles
- axis
- 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- Withdrawn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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B19/00—Wheels not otherwise provided for or having characteristics specified in one of the subgroups of this group
- B60B19/003—Multidirectional wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B19/00—Wheels not otherwise provided for or having characteristics specified in one of the subgroups of this group
- B60B19/12—Roller-type wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
- B60B3/08—Disc wheels, i.e. wheels with load-supporting disc body with disc body formed by two or more axially spaced discs
- B60B3/085—Discs having no mutual contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2200/00—Type of product being used or applied
- B60B2200/20—Furniture or medical appliances
- B60B2200/26—Medical appliances
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2310/00—Manufacturing methods
- B60B2310/20—Shaping
- B60B2310/204—Shaping by moulding, e.g. injection moulding, i.e. casting of plastics material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2310/00—Manufacturing methods
- B60B2310/60—Surface treatment; After treatment
- B60B2310/616—Coating with thin films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2320/00—Manufacturing or maintenance operations
- B60B2320/10—Assembling; disassembling
Definitions
- the present invention relates to a multidirectional wheel, wherein the wheel has a wheel body which is rotatable about a wheel axle and has two half shells, and a plurality of rotational bodies which are located on the outer circumference of the wheel body and over which the wheel can be unrolled.
- the wheel disclosed in this document comprises a wheel body and a plurality of bodies of revolution in the form of rollers, which are located on the outer circumference of the wheel body. It is provided that extends the longitudinal axis of the rollers either in the plane of rotation of the wheel body or at an angle thereto.
- DE 10 2008 019 976 A1 discloses a multidirectional wheel in which the rollers are arranged on receiving components, which in turn are fastened to half-shells are and extend between them.
- the rollers are arranged with journals rotatably in bearing points of the receiving components.
- US Pat. No. 7,641,288 discloses a multidirectional wheel in which a bearing axis extends through the rollers and is bolted to bearing points in its end regions.
- the object of the present invention is to develop a multidirectional wheel such that its manufacture is possible in a comparatively simple manner.
- the recordings can be formed as recesses be, in which protrude the end portions of the axes.
- the receptacles may be formed as projections which protrude into recesses of the axes and hold in this way the rotational body.
- the rotary bodies preferably have at least one main body forming the tread and one or more axles or axle sections, wherein the main bodies are rotatable relative to the axles or axle sections, so that the rotary bodies are rotatable relative to the half shells and thus relative to the wheel.
- the axles or axle sections are preferably arranged not rotatable in or on the receptacles.
- an embodiment of the invention is also included, in which the axes are rotatable relative to the receptacles on which they are arranged.
- continuously tapering means a configuration of the receptacles in which the cross-sectional area of the receptacle in the axial direction of the rotational bodies received therein increases continuously or stepwise (if the receptacle is designed as a recess) or decreases steadily or stepwise (if the receptacle acts as a projection
- a conical configuration of the receptacle is preferred, whereby a single conical section or several conical sections with different inclinations of the surface can be provided, Also a step-shaped cylindrical geometry with increasing or decreasing cross sections in one direction is conceivable and encompassed by the invention ,
- the end portions of the axes of the rotary bodies are formed complementary to the shape of the seats, i. also formed continuously tapered.
- the axes of the rotary bodies may be formed in several parts, one-piece or zero-part by representing an integral part of the rotary body.
- the shots of the half shells can all be designed as recesses or as projections.
- a combination is also conceivable and encompassed by the invention. Such a combination could, for example, be designed such that one half shell has only receptacles in the form of recesses and the other half shell only receptacles in the form of protrusions.
- a mixed version to the effect is conceivable and includes of the invention that a half-shell has both receptacles that are designed as recesses and recordings that are designed as projections.
- each half-shell has a plurality of receptacles, which are spaced apart in the circumferential direction of the wheel.
- both half-shells have receptacles which are, for example, conical or tapered and in which the end regions of the axis of the rotary body, such as a roller, are accommodated or which protrude into the end regions of the axis of the rotary body.
- the rotational bodies are preferably fixed by press fit between the receptacles.
- Another significant advantage of the inventive design of a multidirectional wheel is that the production of the half-shells can be made without slide support in an injection molding process, which would not be possible with a half-shell with cylindrical receptacle for the axes of the rotary body, otherwise not the half shell could be removed from the injection mold. Due to the special design of receiving one or both half-shells, for example in a conical shape, the injection-molded part, ie the half-shell, for example, be removed from the injection mold by a rotational movement, without a slide support.
- the present invention further relates to a multidirectional wheel with the features of claim 2.
- the rotary bodies have an axis which consists of at least two axle sections, between which at least one spring element is arranged on the axle sections in the direction of Exercises end regions of the axis acting force, or that the axes of the rotational body cooperate with receptacles of the half shells, wherein the receptacles are spring loaded so that they exert a force acting in the direction of the axis arranged in the receptacle rotational body.
- the receptacles of one or preferably both half shells are integral components of the half shells.
- the images are not formed by separate parts, but by integrally molded into the half shells recordings.
- the receptacles of both half-shells are arranged offset to one another in the circumferential direction of the wheel. In this case, the receptacles are oriented such that the rotational bodies arranged in the receptacles extend obliquely with their longitudinal axis and not parallel to the axis of rotation of the wheel.
- the half shells and the receptacles integrated therein are preferably symmetrical in their geometry, but not mirror-inverted.
- a ring portion of a half-shell which includes all recordings, so this ring section could be used for the right as well as for the left half shell of the wheel.
- half-shell includes any wheel part and in particular wheel half, regardless of whether a shell shape or any other shape is present.
- the receptacles of the half shells are conical, wherein the cone extends so that increases the cross-sectional area of the receptacle from the end portion of the axis away to the rotational body.
- one or both half-shells are designed as injection-molded parts.
- the conical or conical design of the recordings means that the injection-molded part can be removed from the injection molding tool without rotation of the slider, for example, by a rotation.
- the axis is arranged in a bearing sleeve. Through this bearing sleeve, the axis or its axis sections extends. The axis itself may be fixed, so that the bearing sleeve rotates about the axis or be formed such that the axis rotates in the receptacle.
- the bearing sleeve is surrounded by a covering, which forms the running surface of the rotary body, wherein it is preferably provided that it is the coating is an elastomer.
- the covering may be sprayed onto the bearing sleeve, for example.
- the above-mentioned spring element which exerts a force on the axle sections and / or on the receptacles for example, as a spring, such as. B. be designed as a spiral spring or as an elastomeric part, in particular as an elastomeric ball.
- the present invention further relates to a medical device, in particular a dialysis machine with at least one multidirectional wheel according to one of claims 1 to 11.
- a further aspect of the invention relates to a method of manufacturing a multidirectional wheel, in particular a multidirectional wheel, according to one of claims 1 to 11, the method comprising the step of inserting the rotary bodies in the receptacles of the half-shells and the step of adjoining Twisting of the half-shells relative to each other.
- the multidirectional wheel is made so that the half shells are initially in a first rotational position relative to each other. In this Position then the rotary body are used with their axes with at least one axle end in the recordings.
- a rotational relative rotation of the half-shells is then carried out, so that the rotating bodies are reliably fixed in or on the receptacles of the half-shells.
- a helical relative movement of the half-shells is made, namely a rotation of the half-shells to each other and a translation towards each other, wherein the axis of rotation of the wheel forms the screw axis.
- the axes of the rotary bodies relative to the shots game until the assembly process is completed. This game facilitates the assembly of the wheel.
- the half shells can be connected to each other, for example by screwing, so that a relative rotation is excluded. Instead of a screw and other connection techniques are conceivable.
- the method comprises the step of producing the half shells by injection molding, wherein it is preferably provided that the step of removing the half shell from the injection mold without the aid of a slider and / or by a rotary movement.
- FIG. 1 is a cross-sectional view through a multidirectional wheel according to the present invention
- Figure 2 is a perspective view of the multidirectional wheel according to the present invention after assembly and
- Figure 3 is a perspective view of the multidirectional wheel according to the present invention prior to assembly
- FIG. 1 shows by reference numeral 10, 20 two halves of a multidirectional wheel arranged parallel to one another. Between these half shells extends in the peripheral region of the same a plurality of bodies of revolution 100, which are formed as designed with a convex surface rollers.
- the rollers with a curved, convex surface, for. B. formed ellipsoidal.
- the surface curvature may correspond to that of a tome.
- the rollers 100 include an elastomeric region 102 that forms the tread of the rollers. This elastomer portion 102 is made by overmolding a sleeve 104.
- axle sections 106 Inside the sleeve 104 there are two mutually spaced axle sections 106, which are received with their end portions in receptacles 12, 22 of the half-shells 10, 20.
- the two axis portions 106 apart presses or on this exerts a force which acts in each case in the direction of the located in the receptacles 12, 22 end portion of the axes.
- the diameter of the continuously tapering receptacles 12, 22 increases from the bottom area B of the receptacles to the actual rotation body 100, which has the advantage that the half-shells 10, 20 are produced in a single-stage injection molding process can be, without slider support.
- a release of the half-shells from the injection mold can be done for example by a rotary motion.
- each receptacle has two conical sections of different inclination.
- the further production of the multidirectional wheels according to the invention takes place in that the two half shells 10, 20 are first arranged in a first rotational position relative to each other, that then the rotational body 100 is inserted or positioned relative to the half shells and that then a relative movement or a relative rotation and to each other to move the two half-shells 10, 20 is made so that the rotating body 100 are reliably received between the two half-shells 10, 20, as can be seen from the figure.
- Figure 2 shows the wheel according to the invention in a perspective view and illustrates that the longitudinal axes L1 of the rotary body 100 is not parallel to the longitudinal axis L2 of the wheel, but obliquely.
- FIGS. 2 and 3 the same reference numerals are used for the same elements as in FIG.
- the rotary bodies have a main body, which forms the running surface of the rotary bodies, and one or more axles or axle sections, which are arranged on or in the main body.
- the axle sections 106 are designed with end pieces 106 ' which adjoin the end faces of the main bodies of the rotary bodies 100 so that there is a stepless transition between the main body and the sections 106 ' on the surface.
- the axle sections 106 and their end regions according to FIG. 1 are not located on a section attached to the end faces of the main body of the rotary body, but have a smaller diameter than the main body.
- the axle sections 106 run in the interior of the rotary bodies, their ends, which are received in the seats 12, 22, protrude beyond the end faces of the main body of the rotary bodies.
- FIG. 3 is an illustration of the wheel according to FIG. 2 before the half shells 10, 20 are assembled.
- the rotational bodies 100 are positioned relative to the receptacles 12, 22 so that they are rotatable relative to each other and after a rotational movement of the half shells 10, 20 Movement of the half-shells 10, 20 are added to each other in the receptacles 12, 22, as shown in Figure 2.
- the receptacles 12, 22 of the two half-shells 10, 20 are arranged offset from each other in the circumferential direction.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Tires In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015002360.8A DE102015002360A1 (en) | 2015-02-26 | 2015-02-26 | Multidirectional wheel and method for its manufacture |
PCT/EP2016/000308 WO2016134843A1 (en) | 2015-02-26 | 2016-02-22 | Multidirectional wheel and method for the production thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3261851A1 true EP3261851A1 (en) | 2018-01-03 |
Family
ID=55443220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16706802.2A Withdrawn EP3261851A1 (en) | 2015-02-26 | 2016-02-22 | Multidirectional wheel and method for the production thereof |
Country Status (6)
Country | Link |
---|---|
US (1) | US10618348B2 (en) |
EP (1) | EP3261851A1 (en) |
JP (1) | JP2018511511A (en) |
CN (1) | CN107428197B (en) |
DE (1) | DE102015002360A1 (en) |
WO (1) | WO2016134843A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10214050B1 (en) | 2016-03-03 | 2019-02-26 | Al Incorporated | Robotic floor cleaning device with expandable wheels |
US11829148B1 (en) | 2016-03-03 | 2023-11-28 | AI Incorporated | Cleaning robot and operation thereof |
US10518576B1 (en) * | 2016-03-03 | 2019-12-31 | Al Incorporated | Expandable wheel |
CN210302393U (en) * | 2019-06-28 | 2020-04-14 | 汕头市益尔乐玩具有限公司 | Eccentric omnidirectional wheel |
CN111071166B (en) * | 2019-12-30 | 2021-06-11 | 东风汽车集团有限公司 | Integrated form sensor fixing device |
CN113665290A (en) * | 2020-05-15 | 2021-11-19 | 鸿富锦精密电子(天津)有限公司 | Omnidirectional wheel |
NO347549B1 (en) * | 2022-06-30 | 2024-01-08 | Wheel Me As | Locking ring for rollers on a mecanum wheel |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
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SU1300780A1 (en) * | 1985-01-11 | 1992-09-07 | Blisnov V P | Wheel for displacement to any directions |
CN1073636A (en) * | 1991-12-24 | 1993-06-30 | 黄建军 | Multi-directional moving vehicle and wheels thereof |
US5551349A (en) * | 1995-06-29 | 1996-09-03 | The United States Of America As Represented By The Secretary Of The Navy | Internal conduit vehicle |
JP2001124054A (en) * | 1999-10-27 | 2001-05-08 | Matsushita Electric Works Ltd | Wheel for omnidirectional travel |
US6360865B1 (en) | 2000-05-17 | 2002-03-26 | Fmc Corporation | Cluster roller assembly with improved roller |
JP4250737B2 (en) * | 2002-02-15 | 2009-04-08 | 極東産機株式会社 | Original core of wallpaper gluing machine |
CN2635404Y (en) * | 2003-06-16 | 2004-08-25 | 黄善钧 | Castor |
US7112350B1 (en) * | 2003-07-14 | 2006-09-26 | Duct Seal Systems, Inc. | Method for applying liner to air duct |
DE202005012682U1 (en) | 2005-08-09 | 2006-12-21 | Ic Industrial Consulting Gmbh | wheel |
DE102006037108A1 (en) * | 2006-08-07 | 2008-02-21 | Claas Fertigungstechnik Gmbh | Wheel i.e. Mecanum wheel, for chassis frame for mobile working platform, has roller bodies protruding over circumference of carrier elements, where outer contour exhibits elliptical shape and characterizes running surface of bodies |
US8011735B2 (en) * | 2008-03-12 | 2011-09-06 | Jules Scogna | Wheel for omni-directional vehicle |
DE102008019976B4 (en) | 2008-04-21 | 2012-04-26 | Kuka Roboter Gmbh | Omnidirectional wheel and method for mounting rolling elements of an omnidirectional wheel, as well as omnidirectionally movable chassis and its use |
US7641288B1 (en) | 2008-12-22 | 2010-01-05 | Baker Andrew R | Omni-directional wheel design for construction cost reduction |
US8540038B1 (en) * | 2009-01-09 | 2013-09-24 | The United States Of America As Represented By The Secretary Of The Navy | Low profile omnidirectional vehicle |
US7980335B2 (en) * | 2009-01-26 | 2011-07-19 | Foster-Miller, Inc. | Omni-directional wheel |
CA2689706A1 (en) * | 2009-10-09 | 2011-04-09 | William Liddiard | A fixed wheel that drives in any direction |
CN102791494B (en) * | 2009-10-23 | 2014-12-10 | 罗德卡斯特车轮有限公司 | Wheel frame |
CN201658844U (en) * | 2010-01-09 | 2010-12-01 | 林日壮 | Driving mechanism of toy car |
EP2547569B1 (en) * | 2010-03-15 | 2018-07-25 | Fresenius Medical Care Deutschland GmbH | Use of a mobile device, medical unit and braking device |
EP2372837B1 (en) | 2010-03-18 | 2016-01-06 | Alcatel Lucent | Calibration of active antenna arrays for mobile telecommunications |
US20110272998A1 (en) * | 2010-05-10 | 2011-11-10 | Tsongli Lee | Omni-directional transport device |
CN102310712B (en) * | 2011-06-03 | 2013-06-26 | 南京航空航天大学 | Heavy-duty self-driven omnidirectional wheel and design method thereof |
US20130257138A1 (en) * | 2012-03-29 | 2013-10-03 | Feng-Jung Chang | Multi-directional driving mechanism of a spheric wheel |
US8960339B2 (en) * | 2012-05-03 | 2015-02-24 | Helical Robotics, Llc | Mecanum wheel |
US9320962B2 (en) * | 2012-08-21 | 2016-04-26 | Brian J. Krell | Apparatus and methods for quickly releasing a hub-and-wheel assembly |
CN103963558A (en) * | 2013-02-02 | 2014-08-06 | 上海合华电子科技有限公司 | Roller device for all-terrain robot |
-
2015
- 2015-02-26 DE DE102015002360.8A patent/DE102015002360A1/en not_active Ceased
-
2016
- 2016-02-22 US US15/553,639 patent/US10618348B2/en not_active Expired - Fee Related
- 2016-02-22 EP EP16706802.2A patent/EP3261851A1/en not_active Withdrawn
- 2016-02-22 WO PCT/EP2016/000308 patent/WO2016134843A1/en active Application Filing
- 2016-02-22 JP JP2017544945A patent/JP2018511511A/en active Pending
- 2016-02-22 CN CN201680012037.3A patent/CN107428197B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN107428197A (en) | 2017-12-01 |
WO2016134843A1 (en) | 2016-09-01 |
DE102015002360A1 (en) | 2016-09-01 |
US10618348B2 (en) | 2020-04-14 |
JP2018511511A (en) | 2018-04-26 |
US20180126779A1 (en) | 2018-05-10 |
CN107428197B (en) | 2020-09-08 |
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