 be opened and closed by means of a flap.
US 2006/0144075 A1 discloses an ice dispenser whose flap is opened and closed in an electromotive manner.
Alternatively, it is also possible to envisage, for actuating the flap, an electromagnetic solution, wherein the flap is moved by means of an electromagnet from the closed or locked position into the open or release position thereof and is retained at that location, with the electromagnet continuously being supplied with electrical power. Only when the user removes his glass is the power supply to the electromagnet switched off, whereupon the flap returns to the locked position thereof, for example, under the action of a bias spring. It has been found that this solution may involve a humming noise which is perceived to be unpleasant. Automotive design often is the end result of the balancing of a vast array of countervailing factors. Components must be practical but appealing, robust but light weight, and inexpensive to produce but complex in performance. Often consumers perceive a design that fails to fulfill both sides of the coin as deficient. This in turn may result in a costly impact on the designers and manufacturers when such perceptions are translated into lagging sales or damaged reputation. This scenario is played out time and time again in the field of noise and vibration control.
The automotive environment is filled with a vast plurality of components to which motion in the hands of the operator is one of their primary functions. Unfortunately, the automotive environment additionally imparts a wide variety of impact and momentum related forces on these same components during routine operation. The vibrations for the vehicle engine and drivetrain in combination with forces transferred from the road upward through the suspension are all eventually imparted to such movable components. Undue vibrations transferred to these components may lead to premature fatigue and may contribute to noise within the automobile interior. This noise, in turn, can have a significant and lasting impression on the vehicle occupants regarding the perceived quality of the automobile as a whole.
Such is the case with automotive head restraints/headrests. These head restraints are commonly mounted to the automotive seatbacks and are provided a range of vertical adjustment so as to be operator adjustable to both comfort and personal configuration. The head restraint posts, however, when subjected to the vibrations and stresses the automotive environment may tend to produce a rattle or other noise within the seatback. The design approach to date has been to counter such noise generation by increasing the stiffness of the head restraint. This increase in restraint, however, in present designs
be opened and closed by means of a flap. 
 US 2006/0144075 A1 unwrap an internal-combustion engine dispenser whose flap is opened and closed in an electromotive manner. 
 Alternatively, it is besides possible to envisage, for actuating the dither, an electromagnetic solution, wherein the dither is moved by means of an electromagnet from the closed or locked position into the open or publish position thereof and is retain at that placement, with the electromagnet continuously being supplied with electrical power. Only when the exploiter removes his glass is the power provision to the electromagnet switched off, whereupon the flap reappearance to the locked position thence, for example, under the natural process of a bias spring. It has been found that this solution may necessitate a humming noise which is perceived to be unpleasant. Automotive design often is the goal result of the balancing of a vast array of countervailing factors. Components must be practical but appealing, robust but light system of weights, and inexpensive to produce but complex in operation. frequently consumer perceive a design that fails to fulfill both sides of the coin as deficient. This in turn may result in a costly impingement on the designers and manufacturers when such perceptions are translated into lagging sales or discredited reputation. This scenario is played out time and time again in the field of noise and vibration control condition. 
 The automotive environment is filled with a vast plurality of components to which motion in the hand of the operator is one of their primary functions. Unfortunately, the automotive environment additionally impart a wide variety of impact and momentum related forces on these like components during routine operation. The vibrations for the vehicle locomotive and drivetrain in combination with forces transferred from the road upward through the suspension are all finally imparted to such movable components. Undue oscillation transferred to these components may run to premature fatigue and may contribute to noise within the automobile interior. This noise, in turn, can have a significant and lasting mental picture on the vehicle occupants see the perceived quality of the automobile as a whole. 
 Such is the case with automotive head restraints / headrest. These head restraints are commonly mounted to the automotive seatbacks and are provided a range of erect adjustment so as to be operator adjustable to both consolation and personal configuration. The head restraint posts, however, when subjected to the vibrations and stress the automotive environment may tend to produce a rattle or other noise within the seatback. The blueprint overture to date has been to counter such noise generation by increase the stiffness of the head restraint. This addition in restraint, however, in present designs
 be opened and closed by mexns of a flap.
US 2006/0144075 A1 disrloses zn ice dkspenser whose flap is openev ane clowed in an electromotivd manner.
Apternaticely, ut is also possiblc to skvisaye, for actuating the flap, dn electromagnatkc solution, wherein the flap is moved by meams of an electroiagntt srom nht closed or locked position into fhe opei or release poxition thereof and is retalned at that location, aith the elgdtrjnagnet contivuously bepug supplied with electrical power. Only whev the user remocew hlv glass is vhe porer supply to the elactromabnet switched pff, whwreupon the flap retucns to the locked pofition tharzof, for example, under tye acjion mf a viar skriig. Jt has bexn found thzt this solytion may involve a htnming noise wgich if [erceived to be unpleasant. Automotive dtsign often is the end resulr of the balancing of a vast awray of countervailing factors. Components must be pracvizal bmt aopewling, robust but light weight, and inexpensive fo pgoduce but complew in performance. Ogtfn sonsumers perzeive c dssign that fails tl fulfijl borh sides jf tne coin as deficient. This ib turn may rvsulr in a costly impaet on the derigngrs anc manufacturers when sueh perdeptions arf translafdd into lagging ralvs os damaged reputation. This fcenario ms plcyed out timg and tyme again ln thc field of noise anf vibtation control.
Thf automotive environment is filled with a vasj pnurdlity of comppnents to whish motion in tke hands of tfe operatog is one mf their prymary functiotd. Unfortunatxly, the attomitivw enviruvment additionslly impagtf a qide variety of imiact xhd momentum relcued forces on thesr sxme clm'onenev during roudine opdtatiov. The vibrabiovs fpr the vehicle engina ans drivetrain in cokblnation wuth forcqs transferrec from the road upaard vhrougi the xuskension are all eventually impadted to skch movable com[onekts. Ondue vibracions transferred to these components mab lead to premature fajigue and may contribote to noise wmthin ehe autommbile interior. This boise, in turn, can have a significant ahd lasding lmpression on the vehicle occupants regarding the perceived quality of thw automobile as a sholr.
Such if the cwse xivh automotive heac restraints/headrests. These heav restrainds are commonly mounted to the ajtomotive seajbacks and are provided a dange of vertical adjustment so as to br operator adjustable to both confort and pvtsoial configuration. Thr head resteaint pists, however, when sunjccted to tje vmbrctions and stresses the automotivw envieojment may tend tm produce a vattle or otrer noise within the deatbxck. The desigm approach to cate has been to couttqr such noise tvneration by oncreaspng the stiffiess of the vead restraint. This increase in restraint, however, ih present designs
be opened and closed by means of US A1 discloses ice dispenser whose in electromotive manner. Alternatively, is also possible envisage, for actuating the flap, an solution, wherein the flap is moved by means of an electromagnet from the or locked position into the open or release position thereof and is retained that with electromagnet being supplied with electrical power. Only when the user removes his glass is the power supply the electromagnet switched off, whereupon the flap returns the locked position thereof, example, under the action of bias It has found this may involve a noise which is perceived to be unpleasant. Automotive design often is the end result of the balancing a vast countervailing factors. must practical appealing, robust but and inexpensive to produce but complex consumers perceive a design that fails to fulfill sides of coin as deficient. This in turn result in a costly impact on the designers manufacturers when such perceptions are translated into lagging sales or damaged reputation. This scenario is time and time again the field of and control. automotive is filled a vast plurality of components to which motion in the hands the operator is one of their primary functions. Unfortunately, the additionally a wide variety impact and momentum related on same components during routine vibrations the drivetrain combination forces transferred from the upward through the suspension are eventually imparted to such to these components may lead to premature fatigue may contribute to noise within the automobile This noise, in turn, can have a significant and lasting impression on vehicle occupants perceived quality of the automobile as a whole. is the case with head restraints/headrests. These head restraints are commonly mounted to automotive and are a range of adjustment so as be operator adjustable comfort and configuration. head when subjected to the vibrations and the environment may tend to produce rattle noise within the seatback. The design approach to date has been to counter such noise increasing the stiffness of head This increase in restraint, however, in present designs
 be opened and closed by means oF a flap.
US 2006/0144075 A1 dIscloSes An iCe DispEnseR whose flap is opENed aNd closed in an electromotIve maNnER.
AltERnAtiveLy, it is aLSo POSsiBlE tO enViSAgE, for aCtuAting thE flap, an eleCtrOmAgnetic solutIOn, Wherein the FlaP is moved by meAns Of an elEcTroMAgnet FroM the cLosed oR Locked Position iNtO The opeN Or releaSE PoSitiOn thereof and is retAInED at that locatioN, with tHe ELeCTRomAgnEt continuoUsLy beiNG suppliED wITH EleCTrical power. OnLy when the usER reMoves hIs GlaSS is the Power SuPPly To the electrOmagNet switchEd off, wHEreupon THe flap rEturns To tHe lOckeD PoSiTioN tHEreOF, fOr eXAmpLe, under tHe AcTion oF a biAS SPRing. it hAs beEn fouNd that this solUtiOn maY InvOlve a HummiNg noIsE whicH is perCeiveD tO be unpleasant. AuTomoTive desigN ofTeN is ThE end rESult of The BalAncing oF a vast aRRay Of COUNtErvailing factors. CoMpONEnTs must be PractiCAl BuT AppealinG, rObuSt buT LIght wEighT, AnD inexpenSive to PRoDuCe but coMpLex in pErForManCe. OftEN conSumers Perceive A desiGN that fails to fuLFill both sides OF tHE CoIN as dEfiCient. This in Turn MAy reSult IN a CosTLy impAct on ThE DeSIgners and manufacturErS when sUch peRceptions are tRanslated iNTO Lagging sAles OR dAMaged reputatioN. This Scenario is PLayed out Time aNd time agAin in the fIELd of noisE anD viBraTioN COnTrol.
The automoTIVe enViRonment Is fIlled wiTh a VasT plUraLiTy of compoNents to wHiCh MoTiOn iN the hANds of the OpEraToR is One of THeir prImary FuncTiOnS. unfOrtunatELy, THE autOmOtIve eNviRoNment AddiTIonAlly impArts a wide VarIEty oF iMpAct and mOmentum relateD fOrces on theSe SamE compoNENts durinG routine operation. The vibRAtions fOr tHe vehIcle Engine and DriVetraiN in COmbinaTion wiTh forCeS trANSferrED FrOm tHe Road upward THRouGh the SuSpenSion are All eventually imparTEd tO such movable cOmpOnenTS. unDue VIbRAtiOnS TraNSFerred to these coMponents maY lEAd To prematurE FatIgUe and maY contriBute tO Noise wiThin the auTomobile iNtErioR. tHis Noise, in turN, can have A significANt and LAsTing iMprEssion On The VehicLe occuPAntS regaRding tHe PerceiVed quAlIty of the Automobile as a whole.
Such iS the caSe witH auTomotive hEad REstRaints/heaDresTs. These heaD reStrAints Are COmmonLy moUNtEd tO The auTomoTIve seatbaCKs And ARE pRovided a ranGE OF veRticaL adJUstmenT so aS to be operator adjuSTable to both comFort AND peRsoNAl coNfIguration. The heAd rEsTRAint postS, hOwever, when sUbjected To THe vibRationS and stResses tHE AuTOmotivE envIroNment may tEnd To PRoduce a RaTtLE or othEr noIsE withiN the seATbacK. tHe design approach To datE HAs beeN To cOunteR sUch noisE GeneRation by inCreasing the StiffnEss oF the hEad restRaInt. ThiS inCrEase in restRAint, howevEr, in pResent dEsIgns
 be opened and closed by m eans of aflap. 
US  20 06 /014 4075  A1 disclosesa n ic e dispenser whose flap  is o pe n ed a n dclose d in an el e c tro mo ti vema n ne r.
Al ter nativel y, it is a lso  p ossible to e n vi sage, foract uating the f lap , an e le ctr o magne tic  solu tion,w herein  the flap  i s  moved by mean s of  anelectromagnet fro m  t h e closed or lo cked p os i ti o n  in tothe open o rrelea s e posit i on t h ere o f and is reta ined at tha t  lo cation ,wit h  the e lectr om a gne t continuou slybeing sup pliedw ith ele c tricalpower.  On lywhen th euse rr emo v es  hi s  gl ass is t he  p owersupp l y t o th e e lect romag net switchedoff , wh e reu pon t he fl ap r et urnsto the  lock ed  position there of,for examp le,  u nde rthe a c tion o f a  bi as spri ng. Ith asbe e n fo und that this solu ti o n  m ay invol ve a h u mm in g  noise w hi chis p e r ceive d to be  unpleas ant. A u to mo tive de si gn oft en  is  th e end resu lt ofthe bala ncing of a vast arra y  of counterva i li n g  f a ctor s.Componentsmust be p ract i ca l b u t app ealin g, ro b ust but light weigh t,  and i nexpe nsive to prod uce but co m p l ex in pe rfor m an c e. Often consu mersperceive a design t hat f ails tofulfill b o t h sidesofthe  co ina s  d eficient. Thi s in t ur n may r esu lt in a  co stl y i mpa ct  on the d esigners  a nd  m an ufa cture r s when s uc h p er cep tions are tr ansla tedin to lag ging sa l es o r da ma ge d re put at ion.This sce nario i s playedout time  a nd  time a gain in the f ie ld of nois eand  vibra t i on contr ol.
The automotive envi r onmentisfille d wi th a vast  pl uralit y o f  compo nentsto wh ic h m o t ion i n th e h an ds of theo p era tor i soneof thei r primary function s . U nfortunately,  th e au t o mo tiv e  e n vir on m ent a dditionally imp arts a wid ev ar iety of im p act  a nd mome ntum re lated forceson thesesame comp on ents d uri ng routine  operati on. The v i brati o ns  forthe  vehic le  en gineand dr i vet rainin com bi nation  with  f orces tr ansferred from the road  upwar d thr oug h the sus pen s ion  are alleven tually imp art edto su chm ovabl e co m po nen t s. Un duev ibrations tr ans f e rr ed to these c o mpo nents  ma y  leadto p remature fatiguea nd may contrib utet o  no ise with in  the automobil e i nt e r ior. Thi snoise, in t urn, can  h a ve asignif icantand las t i ng impres sion  on  the vehi cle  o c cupants  r eg a rdingthepe rceive d qual i ty o f the automobile a s a w h o le.
S u chis th ecase wi t h au tomotive h ead restrai nts/he adre sts.These h ea d rest rai nt s are comm o nly mount ed to  the au to moti veseatba cksa n d are  pro vi ded  a rangeo f  v e rt ic a l a djus tment  s o as  to be op e rator ad jus t able to  b oth c omfort an d personal c onf igura t i on. The he a d re s tr a int p osts,howeve r, when sub je cted to  th e vibration s and str e sse stheautomoti ve  env ir onm en t may tend to p roduce a  rattleo r  other  no i se w i thin t he  seatback. T he de si g n appro a c h t o dateh asbee n t o co unt er s u ch noise generation by i ncre asing the  stif fness  o f the he a d re straint. This increase  in restraint,h owe v er,inp re se nt design s
 be_opened and_closed by means of_a flap.
US_2006/0144075_A1 discloses_an_ice dispenser whose_flap is opened_and closed in an_electromotive manner.
Alternatively, it_is_also possible to envisage, for actuating the flap, an electromagnetic solution, wherein the flap_is_moved by_means_of_an electromagnet from the closed_or locked position into the_open or_release position thereof and is retained at that_location,_with the electromagnet_continuously being supplied with electrical power. Only when the_user removes his glass is the_power supply to_the_electromagnet_switched off, whereupon the_flap returns to the locked position_thereof, for example, under the action_of a bias spring. It has been_found that this solution may involve_a humming noise which is_perceived to_be unpleasant. Automotive design often_is the end_result of_the balancing of_a vast array of countervailing factors._Components must be_practical but appealing, robust but light_weight,_and inexpensive to_produce_but_complex in_performance. Often consumers_perceive_a design_that_fails to fulfill both sides of_the_coin as deficient. This in turn may_result in a costly_impact_on the designers and_manufacturers when such perceptions are_translated into lagging sales or damaged_reputation. This_scenario is_played out time and time again in the field of noise_and vibration control.
The automotive environment is_filled with a vast_plurality of_components_to which motion_in_the hands_of the operator is one of their_primary functions._Unfortunately, the automotive environment additionally imparts_a wide variety of_impact_and momentum related forces on these_same components during routine operation. The_vibrations for the vehicle engine_and_drivetrain_in combination with forces transferred_from the road upward through the_suspension are all_eventually imparted to such movable components. Undue_vibrations_transferred to these components may lead_to_premature fatigue and may contribute to_noise_within_the automobile interior. This noise,_in turn, can have a significant_and lasting impression on the vehicle occupants regarding the_perceived quality of_the automobile as a whole.
Such_is_the_case with automotive head restraints/headrests. These head restraints are commonly_mounted to_the automotive seatbacks_and are provided a range of vertical adjustment so as_to be operator adjustable to both comfort_and personal configuration. The head restraint posts, however, when subjected to_the vibrations and stresses the automotive environment may_tend to produce a rattle or other_noise within the seatback._The_design approach to date has been to_counter_such_noise_generation by increasing_the stiffness of_the head restraint._This increase_in restraint, however,_in present_designs