Hardware Terms(A-D)五金术语A-D
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HardwareTermsA
ActiveDoor(inapairofdoors)
Theleafthatopensfirstandtheonetowhichthelockisapplied.
AHC
IndicatesthattheindividualsoidentifiedisaqualifiedArchitecturalHardwareConsultantandmemberoftheDoorandHardwareInstitute.
Anti-FrictionBearing
Anybearinghavingthecapabilityofeffectivelyreducingfriction.
Anti-FrictionLatchBolt
Alatchboltdesignedtoreducefrictionwhentheboltstartstoengagethelockstrike.
ArchitecturalHardware
Termappliedtoallhardwareusedinbuildingconstructionbutparticularlythatusedonorinconnectionwithdoors,windows,cabinetsandothermovablemembers.
ArmorPlate
Aplatesimilartoakickplatebutcoveringthedoortoagreaterheight,usually40"(1040mm)ormorefromthebottom.
ArmoredFront
Alockthatconsistsoftwoplates:theunderplateisfastenedtothecaseandisunfinished;thefinishplateisfastenedtotheunderplateandwheninplacecoversthecylindersetscrews,thusprotectingthemfromtampering.Usedonmortiselocks.
Astragal
Amoldingorstripwhosepurposeistocoverorclosethegapbetweentheedgesofapairofdoors.Sometypesoverlap,othersmeetatthecenterlineofthegap.(SeeCoordinator)
AuxiliaryDeadLatch
Asupplementarylatchthatautomaticallydeadlocksthemainlatchboltwhenthedoorisclosed.(AlsocalledDeadlockingLatchBolt)
HardwareTermsB
BackCheck
Optionalfeatureinhydraulicdoorclosersslowingtheopeningswingofthedoorsomewherebetween60degreesand85degreesofopening.Designedtoprotectanobjectbehindthedoor.Notintendedtoactasanoverheadstop.
Backset(ofahinge)
Thedistancefromtheedgeofthedoortothehinge.
Backset(ofalock)
Thehorizontalmeasurementfromtheedgeofthedoortothecenterpointofthe2-1/8"holesthroughthedoor.
Ball-BearingHinge
Ahingeequippedwithballbearingsbetweenthehingeknucklestoreducefriction.(SeeAnti-FrictionBearing).Mainlyusedforheavydoorsforeaseofopening.
Bevel(ofadoor)
Theangleofthelockedgeinrelationtothefaceofthelockstile.Standardbevelis1/8"in2"(3.2mmin50.8mm).Ifotherwisedetailed,itmustbesonotedinorderinglocks.
Bevel(ofalockfront)
Anti-reflectiveglassisfloatglasswithaspecially-designedcoatingwhichreflectsaverylow%oflight.Itoffersmaximumtransparencyandopticalclarity,allowingoptimumviewingthroughtheglassatalltimes.
Bevel(ofalock)
Atermusedtoindicatethedirectioninwhichthelatchboltisinclined:regularbevelfordoorsopeningin,reversebevelfordoorsopeningout.
Bit(ofakey)
Theprojectingblade,cutinamannerthatactuatesthetumblersandpermitsthelockboltstobeoperated.
BoredLock(orLatch)
Lockorlatchwhosepartsareintendedforinstallationinholesboredinadoor.
BoxStrike
Astrikethatalsoprovidesacompletehousingtoprotecttheboltopenings.
Butt(Hinge)
Atypeofhingedesignedformortisingintotheedgeofthedoorandintotherabbetofadoorframe.
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HardwareTermsC
Cam(ofacylinder)
| Arotatingpieceattachedtotheendofthecylinderplugtoengagethelockingmechanism. |
CaneBolt
| Aheavycane-shapedboltwiththetopbentatrightangles;usedonthebottomofdoors. |
Case(ofalock)
| Theboxcontainingthelockmechanism. |
CasementHinge
| Ahingetoswingacasementwindow.Thetermisoftenusedtodescribeahingedesignedtothrowthesashoutfarenoughtopermitcleaningtheoutsideoftheglassfromtheinsideoftheroomonanoutward-swingingcasement. |
CDC
| IndicatesthattheindividualsoidentifiedisaCertifiedDoorConsultantandmemberoftheDoorandHardwareInstitute. |
ChainBolt
| Aspringboltactuatedbyachainattachedtothespringboltforapplicationatthetopofthedoor. |
ChainDoorFastener
| Adevicethatlimitstheopeningofadoorbymeansofachain. |
Changes(Key)
| Thedifferentbittingsortumblerarrangementsinaseriesoflocks. |
CheckingFloorHinge
| Adeviceplacedinthefloorthatcombinestopandbottompivotsforhangingthedoorwithacontrolledspeedclosingmechanism. |
ContinuousHinge(alsocalledPianoHinge)
| Ahingedesignedtobethesamelengthasthemovingparttowhichitisapplied,forexample,thelidcoveringthekeyboardofapiano. |
ConversionKit
| Allowsflexibilitytoadapthandlesetsanddeadboltstofit2"or2-1/4"thickdoors. |
Coordinator
| Adeviceusedonapairofdoorstoensurethattheinactiveleafispermittedtoclosebeforetheactiveleaf.Necessarywhenanoverlappingastragalispresentandexitdevices,automaticorself-latchingboltsareusedwithclosersonbothdoorleaves. |
CremoneBolt
| Adeviceofsurfaceapplicationthat,byaturnofknoborleverhandle,locksthedoororsashintotheframe,topandbottom. |
CTC(center-to-center)
| Theverticalmeasurementfromthecenterpointofthebottomthroughholetothecenterpointofthetopthroughhole.Applicableforhandlesetsonly. |
CupEscutcheon
| Adoorplate,foruseonslidingdoors,havingarecessedpaneltoaffordfingerholdandtocontainaflushringandsometimesacylinder,allbeingflushwiththesurfaceoftheplate. |
Cylinder(ofalock)
| Thecylindrical-shapedassemblycontainingthetumblermechanismandthekeyway,whichcanbeactuatedonlybythecorrectkeys. |
CylinderCollar
| Aplateorringusedundertheheadofacylinder. |
CylinderCollarSpacer
| Forusewithdeadboltstoaccommodate1-3/8"thickdoors. |
CylinderLock
| Alockinwhichthelockingmechanismiscontrolledbyacylinder. |
CylinderScrew
| Thesetscrewthatholdsacylinderinplacebypreventingthecylinderfrombeingturnedafterinstallation. |
Cylindrical(locksandlatches)
| Atermusedtodescribeboredlocks,whichhaveacylindricalcaseintowhichaseparatelatchboltcasefits. |
HardwareTermsD
Deadbolt(ofalock)
| Alockbolthavingnospringactionnorbevel,andwhichisoperatedbyakeyoraturnpiece.Lockingmechanism.Metalboltwhichslidesfromdoorintoframepreventingthedoorfromopening.Securityfeatureforexteriordoors. |
Deadlock
| Alockequippedwithadeadboltonly. |
DeadlockingLatchBolt
| Alatchboltincorporatingaplungerthatisheldinaretractedpositionwhenadoorisclosed,thuspreventingtheboltfrombeingretractedbyendpressure |
DoggingDevice
| Asusedinexitdevices,amechanismthatfastensthecrossbarinthefullydepressedpositionandretainsthelatchboltorboltsinaretractedposition,thuspermittingfreeoperationofthedoorfromeitherside. |
DoorBolt
| Amanuallyoperatedrodorbarattachedtoadoorprovidingmeansoflocking. |
DoorCloserBracket
| Adevicewherebyadoorclosermaybeinstalledontheframeratherthandirectlyonthedoor. |
DoorCloserorCheck
| Adevicecombiningaspringforclosingandacompressionchamberintowhichtheliquidorairescapesslowly,thusprovidingameansofcontrollingthespeedoftheclosingaction. |
DoorHolder
| Adevicethatholdsadooropenatoneormoreselectedpositions. |
DoorPivot
| Ahingingdeviceembodyingafixedpinandasinglejoint.Mosttypesincludelateralfastening. |
DoorStop
| Adevicetostoptheswingormovementofadooratacertainpoint.Alsoanarchitecturaltermdefiningthatpartofadoorframeagainstwhichthedoorcloses. |
DoubleCylinderEntranceHandleset
| Deadboltoperatedbykeyfromeitherside;noturnknob.Frequentlyusedwhendoorhasglasspanes. |
Double-ThrowBolt
| Aboltthatcanbeprojectedbeyonditsfirstpositionintoasecond,orfullyextendedone,thusprovidingextrasecurity. |
DrawerRoller
| Adeviceusedtoeasetheslidingofadraweropenorshut,usuallywithametalorfiberwheelrotatinginametalframe. |
DrawerSlides
| Amechanismemployingguidesandrollersthatguideandsupportthedrawer,permittingeasyoperation. |
Drivers
| Theuppersetofpinsinapintumblercylinderwhich,whenactivatedbythesprings,projectintothepluguntilraisedbyinsertionofthekey. |
DropEscutcheon(orKeyPlate)
| Onehavingapivotedplatethatcoversthekeyhole. |
DropRing
| Aringhandleattachedtoaspindlethatoperatesalockorlatch.Theringispivotedbutremainsinadroppedpositionwhennotinuse. |
DummyCylinder
| Amockcylinderwithoutanyoperatingmechanismforusewhereeffectisdesired. |
DummyTrim
| Trimonly,withoutlock;usuallyusedontheinactivedoorinapairofdoors. |
Dust-ProofStrike
| Astrikewithaspringplungerthatcompletelyfillstheboltholewhentheboltisnotprojected. |
DutchDoorBolt
| DeviceforlockingtogethertheupperandthelowerleavesofaDutchdoor. |
