SupportarmWord格式文档下载.docx

SupportarmWord格式文档下载.docx

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BACKGROUNDOFTHEINVENTION

Therearemanyapplicationsinwhichlifts,arms,counter-balances,andforceandtorqueprovidingmechanismsmaybeuseful.Mechanismssuchasthesecanbeusedtoraiseandloweravarietyofitemsincluding,butnotlimitedto,theexampleslistedbelow:

∙

ovideomonitorsofallsizes

ofurnitureworksurfaces

oproductionassemblytools

oworkloadtransferequipment

okitchencabinets

overticallyorientedexerciseequipment

orobotcontroldevices

owindows

Thesemechanismscanalsobeusedtoprovideforcesandtorquesinotherorientations（e.g.,horizontalorradial）.Examplesofsuchapplicationsinclude,butarenotlimitedto:

ocontinuousconstantforcefeedingsystemsformachinetools

ohorizontallyorientedexerciseequipment

odrawerclosingapplications

odoorclosingapplication

Oneapplicationforsuchamechanismisthesupportofadisplaymonitorforapersonalcomputer.Personalcomputersand/ordisplaymonitorsareoftenplaceddirectlyonadeskoronacomputercase.However,toincreasedeskspace,ortorespondtotheergonomicneedsofdifferentoperators,computermonitorsaresometimesmountedonelevatingstructures.Alternatively,monitorsaremountedtoasurfacesuchasawall,insteadofplacingthemonitoronadeskoracart.

However,personalcomputersand/ordisplaymonitorsareoftenusedbymultipleoperatorsatdifferenttimesduringaday.Insomesettings,onecomputerand/ormonitormaybeusedbymultiplepeopleofdifferentsizesandhavingdifferentpreferencesinasingleday.Giventhedifferencesinpeople'

ssizeanddifferencesintheirpreferences,amonitorordisplayadjustedatonesettingforoneindividualishighlylikelytobeinappropriateforanotherindividual.Forinstance,achildwouldhavedifferentphysicalspaceneedsthananadultusingthesamecomputerandmonitor.

Inaddition,operatorsareusingcomputersforlongerperiodsoftimewhichincreasestheimportanceofcomforttotheoperator.Anoperatormaychoosetousethemonitorasleftbytheprevioususerdespitethediscomfort,annoyanceandinconvenienceexperiencedbyauserwhousessettingsoptimizedforanotherindividual,whichmayevenresultininjuryafterprolongeduse.

Moreover,asmonitorsgrowinsizeandweight,easeofadjustabilityisanimportantconsideration.Formonitorsrequiringfrequentadjustment,adjustabilityformonitorshasbeenprovidedusinganarmcoupledwithgassprings,wherethearmishingedlycoupledwiththedeskoraverticalsurface.However,thegasspringsarecostlyandwearoutovertime.Inaddition,thegasspringsrequireasignificantamountofspace,forinstancearmlength,whichcanbeatapremiumincertainapplications,suchasinhospitals.

Thus,thereisaneedforasupportarethatislesscostlytomanufactureandmaintain,hasincreasedreliability,allowseasyadjustability,isscalabletomanydifferentsizedloads,isadaptabletoprovidealongrangeoftravel,andisadaptabletoprovideconstantsupportforceastheloadisbeingpositioned.

SUMMARYOFTHEINVENTION

Thepresentinventionrelatesgenerallytoanapparatusforsupportingaload.Asupportarminaccordancewithanexemplaryembodimentofpresentinventioncomprisesafirststrut,asecondstrut,aproximallink,andadistallink.Aproximalportionofthefirststrutispivotallycoupledtotheproximallinkatafirstproximaljoint.Additionally,aproximalportionofsecondstrutispivotallycoupledtotheproximallinkatasecondproximaljoint.Adistalendofthesecondstrutispivotallycoupledtothedistallinkataseconddistaljoint.Adistalendofthefirststrutispivotallycoupledtothedistallinkatafirstdistaljoint.

Thesupportarmalsoincludesacammechanismcomprisingacamandacamfollower.Insomeusefulembodimentsofthecurrentinvention,thecammechanismconvertstheforceofaspring（e.g.,acompression,extension,torsionaland/orleafspring）toasinusoidalmomentloadoftherotatingarm.Insomeembodiments,thecammechanismmaycompriseanenergysourceforurgingthecamfolloweragainstacamsurfaceofthecam.Whenthisisthecase,thesupportarmmayalsoincludeanadjustmentmechanismforvaryingtheoutputoftheenergysource.

Insomeembodiments,aspringisprovidedforurgingthecamfolloweragainstthecamsurfaceofthecam.Whenthisisthecase,anadjustmentmechanismforvaryingthepre-loadofthespringmayalsobeprovided.Inoneexemplaryembodiment,theadjustmentmechanismcomprisesaspringplatecoupledtothespringandascrewthatiscapableofadjustingthepositionofthespringplate.Otherwaysofadjustingtheenergyoutputofthespringmaybepossiblewithoutdeviatingfromthespiritandscopeofthepresentinvention.Thepresentinventiondescribesanapparatustoprovidethesecapabilitiesatamuchlowercostcomparedtotraditionalarmsbasedongasspringtechnology.

DESCRIPTIONOFTHEDRAWINGS

FIG.1isadiagrammaticrepresentationofasupportarminaccordancewithanexemplaryembodimentofthepresentinvention.

FIG.2isanadditionaldiagrammaticrepresentationofsupportarmshowninthepreviousfigure.

FIG.3isanenlargeddiagramillustratingtheforcesactingoncamfollowershowninthepreviousfigure.

FIG.4isadiagrammaticrepresentationofasupportarminaccordancewithanadditionalexemplaryembodimentofthepresentinvention.

FIG.5isanadditionaldiagrammaticrepresentationofthesupportarmshowninthepreviousfigure.

FIG.6isanadditionaldiagrammaticrepresentationofthesupportarmshowninthepreviousfigure.

FIG.7isadiagrammaticrepresentationofasupportarminaccordancewithanexemplaryembodimentofthepresentinvention.

FIG.8isanadditionaldiagrammaticrepresentationofsupportarmshowninthepreviousfigure.

FIG.9isasideviewofasupportarminaccordancewithanadditionalexemplaryembodimentofthepresentinvention.

FIG.10isaperspectiveviewofthesupportarmshowninthepreviousfigure.

FIG.11isasideviewofthesupportarmshowninthepreviousfigure.

FIG.12isasideviewofthesupportarmshowninthepreviousfigure.

FIG.13isacrosssectionalviewofthesupportarm100showninthepreviousfigure.

FIG.14isaperspectiveviewofsupportarm100showninthepreviousfigure.

FIG.15isasideviewofasupportarminaccordancewithanadditionalexemplaryembodimentofthepresentinvention.

FIG.16isatopviewofthesupportarmshowninthepreviousfigure.

FIG.17isanexplodedviewofapivotmechanism220inaccordancewithanexemplaryembodimentofthepresentinvention.

DETAILEDDESCRIPTION

Thefollowingdetaileddescriptionshouldbereadwithreferencetothedrawings,inwhichlikeelementsindifferentdrawingsarenumberedidentically.Thedrawings,whicharenotnecessarilytoscale,depictselectedembodimentsandarenotintendedtolimitthescopeoftheinvention.Examplesofconstructions,materials,dimensions,andmanufacturingprocessesareprovidedforselectedelements.Allotherelementsemploythatwhichisknowntothoseofskillinthefieldoftheinvention.Thoseskilledintheartwillrecognizethatmanyoftheexamplesprovidedhavesuitablealternativesthatcanbeutilized.

FIG.1isadiagrammaticrepresentationofasupportarm100inaccordancewithanexemplaryembodimentofthepresentinvention.Supportarm100includesafirststrut102,asecondstrut104,aproximallink106,andadistallink108.IntheembodimentofFIG.1,aproximalportionofthefirststrut102ispivotallycoupledtoproximallink106atafirstproximaljoint122.Additionally,aproximalportionofsecondstrut104ispivotallycoupledtoproximallink106atasecondproximaljoint124.Adistalendofsecondstrut104ispivotallycoupledtodistallink108ataseconddistaljoint126.Adistalendoffirststrut102ispivotallycoupledtodistallink108atafirstdistaljoint128.

IntheembodimentofFIG.1,proximallink106comprisesacam130havingafirstcamsurface132.Supportarm100ofFIG.1includesacamfollowingassembly134comprisingacamfollower136andaspring138thatiscapableofurgingcamfollower136againstfirstcamsurface132ofcam130.IntheembodimentofFIG.1,camfollower136andspring138aredisposedwithinalumen140definedbyfirststrut102.AlsointheembodimentofFIG.1,camfollower136comprisesaroller142thatisrotationallycoupledtoadistalendofspring138.IntheembodimentofFIG.1,roller142issupportedsuchthatitrotatesaboutarotationalaxis.WithreferencetoFIG.1,itwillbeappreciatedthataproximalendofspring138isseatedagainstaspringplate144.

FIG.2isanadditionaldiagrammaticrepresentationofsupportarm100showninthepreviousfigure.IntheembodimentofFIG.2,distallink108supportsaload.Itistobeappreciatedthatvariousloadsmaybesupportedusingsupportarm100withoutdeviatingfromthespiritandscopeofthepresentinvention.InFIG.2,theeffectofgravityontheloadisillustratedusinganarrowlabeledFL.AdirectionofgravitationalpullillustrateusinganarrowlabeledDGinFIG.2.WithreferencetoFIG.2,itwillbeappreciatedthatthearrowlabeledFLandthearrowlabeledDGaregenerall