ASTM D2050-2007 Standard Terminology Relating to Subassemblies.pdf

1、Designation: D 2050 07Standard Terminology Relating toSubassemblies1This standard is issued under the fixed designation D 2050; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indi

2、cates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This terminology covers all terminology pertaining toitems that are considered subassemblies in the manufacture oftextile products except seams and stitches. Te

3、xtile joiningstructures (seams and stitches) are discussed in detail inPractice D 61931.2 The principle parts of slide fastners defined in thisterminology are illustrated in Figs. 1-10. These figures aredescriptive only and are not intended to be restrictive as todesign.2. Referenced Documents2.1 AS

4、TM Standards:2D 2061 Test Methods for Strength Tests for ZippersD 6193 Practice for Stitches and Seams3. Terminologyautomatic lock slider, na slider that provides involuntary,positive locking action on the chain when the pull is releasedrestricting the movement of the slider to open the chainunless

5、a stress is applied through the stringers that exceedsthe locking capacity of the slider. See Test Methods D 2061bail, na portion or portions of the slider to which the pull orpulls are attached. (Syn. lug.)bead, nin a individual element slide fastener, an enlargedsection on the inner edge of each t

6、ape formed by the cordand weft yarns of the tape used to attach the cord to the tape.The interlockable elements are affixed to the bead on anindividual element slider fastener.bead, nin a continuous element woven typeslide fastener,asection of the tape where a cord and/or selected warp yarnsare wove

7、n in place by the weft yarns of the tape to form abead. The continuous element is secured to the tape by thebead simultaneously with the bead formation.bead, nin a continuous element sewn type slide fastener,asection of tape where a cord is attached to the tape bysewing. A cord is optional on contin

8、uous element sewn typeslide fastener.bottom assembly, nthe components of the lowermost part ofa slide fastener that determines whether the slide fastenerwill be non-separable or separable. (See also “non-separable” slide fastener and “separable” slide fastener.)bottom stop, na part affixed to both s

9、tringers immediatelybelow, or over the chain, holding the two stringers togetherat the bottom and preventing the slider from leaving thechain when opening the chain. (See Fig. 1.)bridge top stop, na part affixed immediately above thechain, holding the tops of two stringers together and pre-venting t

10、he slider from leaving the chain wehn closing thechain. See Fig. 2.)cam lock slider, na slider that incorporates a curled projec-tion or projections on the pull that extends through a windowor windows to effect a locking action by pressing against theinterlocking elements when the cam lock slider is

11、 in thelocked position.chain, nthe portion of a slide fastener, without its compo-nents (top stops, bottom stops, slider, separating parts,etc.),that is formed by alternately interlocking the elements of onestringer with the elements of an opposing stringer .chain front, ngeneral reference of the sl

12、ide fastener whenviewed from the element side on a continuous clementfastener (CEF). For slide fastener designs where the chain isbilaterally symmetrical (such as an IEF for example) thefront is generally referenced by the location of the slider tab,on a single tab slider, when opening or closing th

13、e chain.chain thickness, nthe measurement from front to back of thechain. On a continuous element fastener (CEF) the measure-ment includes the tape and sewing threads on a sewn typefastener or the tape and yarns for securing the element to thetape on a woven type fastener if these parts extend beyon

14、dthe element.chain width, nthe measurement between the shoulders ofthe interlocked elements or between the outermost edges ofthe bead if the bead extends beyond the elements.1This terminology is under the jurisdiction ofASTM Committee D13 on Textilesand is the direct responsibility of Subcommittee D

15、13.54 on Subassemblies. Thesedefinitions were developed in cooperation with the American Fastener and ClosureAssn. Inc.Current edition approved Dec. 1, 2007. Published January 2008. Originallyapproved in 1961. Last previous edition approved in 2004 as D 2050 042For referenced ASTM standards, visit t

16、he ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,

17、 United States.connecting ring, na device used to secure a pull, havingmore than one component in its design, to the bail of theslider. The connecting ring may be of various shapes.continuous element, na configured element formed continu-ously from a length of monofilament into the shape of aspiral

18、(or coil), serpentine or other configuration. The con-tinuous element contains heads formed along its length at thecrimp for the purpose of interlocking. The side of thecontinuous element opposite the crimp is the shoulder andbears the slider flanges during opening and closing of theelements. (Compa

19、re separate element.)continuous element slide fastener, nCEF, a slide fastenerconsisting of two continuously formed elements, each at-tached to one of the opposing edges of two tapes, which areengaged and disengaged by the movement of a slider. TheCEF fastener can be a sewn type or a woven type cons

20、truc-tion. (See Fig. 3.) (Compare individual element slidefastener)cord, na strand of multiple yarns either twisted, knitted or acombination. The cord is used in conjunction with weftyarns of the tape on an individual element fastener, thesewing thread on a continuous element sewn type fastener orth

21、e weft yarns and warp yarns (optional) on a continuouselement woven type fastener to form a bead.crimp, nas applied to a continuous element slide fastener,the predetermined formation of the monofilament cross-section at the point where the continuous element is inter-locked.FIG. 1 Bottom StopFIG. 2

22、Bridge StopFIG. 3 Top StopFIG. 4 Principle Parts of Slide FastenersContinuous ElementSlide FastenerD2050072cut-off, nthe measurement of an individual element from thehead side to the pocket side of the legs.diamond, nthe wedge-shaped portion of a slider between thethroats.element, na device designed

23、 for interlocking, capable ofbeing affixed along the edge of a tape. (Compare continuouselement and individual element.) (See Fig. 4.)exposed tape width, nthe part of the tape extending beyondthe shoulders of the interlocking elements to the outer tapeedge.fixed retainer, na device permanently attac

24、hed to the re-tainer pin at the bottom of one stringer. (See Fig. 5.)DISCUSSIONThe fixed retainer has an opening shaped to fit theseparable pin. In order to close the chain, the separable pin is passedthrough the slider body and then inserted into this opening. The fixedretainer holds or retains the

25、 two stringers in alignment for interlocking.The fixed retainer is sometime referred to as the “box”.flange lock slider, na slider with notches in the flanges of theslider that block the shoulders of the elements when theFIG. 5 Element (one side of element on sewn type CE fastener)FIG. 6 Principal P

26、arts of Slide FastenersIndividual ElementSlide FastenersFIG. 7 Movable RetainerD2050073stringers above the slider are pulled apart, thus preventingfurther separation of the chain.flanges, nthe edges of the slider formed to contain the chain.head, non an individual element fastener, the portion of an

27、element that engages the pocket of another element on anopposing stringer of the fastener during closing.head, non a continuous element fastener, partially flattenedarea of the monofilament located at the crimp. The flattenedarea forms a mushroom like shape on each crimp of theelement that interlock

28、s with the two heads of the element onan opposing stringer.individual element fastener, na slide fastener consisting oftwo series of individually formed elements, each attached toone of the opposing edges of two tapes, which are engagedand disengaged by the movement of a slider. (See Fig. 6)(Compare

29、 “continuous element” slide fastener.)knuckleSee preferred term crimp.legs, nthe two portions of an individual element that affix theelement to the bead.lugSee preferred term bail.mouth, nthe opening in a slider that receives the chain.mouth width, nthe measurement between the slider flangesat the p

30、oint where they bear against the shoulders of theinterlocked elements.movable retainer, na movable or sliding device performinga similar function to that of the fixed retainer, yet able toFIG. 8 Releasing StopsFIG. 9 Separating PartsFIG. 10 SlidersD2050074open and close the chain like to a slider. T

31、he purpose of themoveable retainer is to permit separation of the two stringersfrom the bottom, while the stringers remain connected at thetop by the moveable retainer and slideron the slide fastener.(See Fig. 7.) A slider fastener with a moveable retainerdevice is sometimes referred to as a “Two Wa

32、y” separablefastener and is able to function like a separable fastenerwhen using the slider.DISCUSSIONThis device is not removable from the bottom of theslide fastener. non lock slider, na slider that does not contain alocking mechanism allowing free movement of the slider to open thechain when a fo

33、rce is applied without restriction by a locking device.Sometimes referred to as a Free Slider.nonseparable slide fastener, na slide fastener having twostringers that are permanently attached to each other at oneor both ends. (See Fig. 7.) (Compare separable slidefastener.)pin lock slider, na slider

34、that incorporates a projection onthe pull that fits between adjacent interlocking elements of aslide fastener when a pin lock slider is in the lockedpositionpin, retainerSee retainer pin.pin, separable See separable pin.pocket, nthe cavity of an element on an individual elementfastener designed to r

35、eceive the head of an element on anopposing stringer.pull, na part connected to a slider by which the slider isoperated.QDabbreviation for quick disassembly slide fastener. (Seereleasing stop.)QRabbreviation for quick disassembly slide fastener. (Seereleasing stop.)ratchet lock slider, na slider wit

36、h a locking mechanism thatpermits the slider to slip along the chain upon application ofa predetermined force so as to prevent damage that wouldimpair either the service or use of either the slider or chain.releasing slider, na slider with a mechanical means forloosening the slider on the chain.rele

37、asing stop, na device attached at or near the top of thestringer on the separable pin side which limits the travel ofthe slider at the open end of the chain under normal closingoperations. (See Fig. 8.)DISCUSSIONThe slider may be forced beyond the releasing stopwhen added force is exerted towards th

38、e top of the slide fastener.Releasing stops are used on “quick release” or “quick disassembly”slide fasteners.retainer, fixedSee fixed retainer.retainer, movable See movable retainer.retainer pin, na tube-like element, similar to the separablepin, attached over the bead at the bottom end of the stri

39、ngeropposite to the separable pin and that is designed to hold thefixed retainer in position.reverse bail, nin a continuous element fastener, configura-tion of a slider with a single bail where the bail is located onthe opposite side of the slider body in relation to the flangesof the slider. Revers

40、ing the location of the bail, in thisfashion, allows opening or closing of the elements with theback of the slide fastener facing the user with the fastenerinstalled in the application.scoopDeprecated term, see element.semi automatic lock, , na slider that provides involuntary,positive locking actio

41、n on the chain when the pull is in adesignated position on the slider body restricting the move-ment of the slider to open the chain unless a force is appliedthat exceeds the locking capacity of the slider.separable pin, na tube-like element attached over the beadat the bottom end of one stringer.se

42、parable slide fastener, na zipper fitted with specialcomponents at the bottom of the chain, so as to permitcomplete disengagement and then reengagement of the twostringers. (See Fig. 5.) (Compare nonseparable zipper.)separate element slide fastener, nDeprecated term, seeindividual element fastenersh

43、oulder, nthe bearing surface of an interlocking element bywhich the chain is contained inside the flanges of the slider.The shoulder is located on element opposite the head.slide fastener , na closure device consisting of interlockableelements each attached to one of the opposing edges of twotapes a

44、nd a movable part called a “slider” that spans theinterlockable elements. When the slider is moved in onedirection it causes the elements on one tape to interlock withthe elements on the other tape, and when moved in theopposite direction causes the elements to disengage. Theterm slide fastener and

45、slide fastener are used interchange-ably.slide fastener size, nthe chain width of the slide fastener isgenerally used as the basis for size identification.slider, nthe part that opens a slide fastener when it ismoved in one direction and closes the slide fastener when itis moved in the opposite dire

46、ction. (See Fig. 10.)slider, automatic lock See automatic lock slider.slider, cam lockSee cam lock slider.slider, flange lock See flange lock slider.slider, non -lockSee See non-lock slider.slider, pin lockSee pin lock slider.slider, ratchet lock See ratchet lock slider.slider, releasing See releasi

47、ng slider.slider, reverse bail See reverse bail.slider, semi automatic lock See semi automatic lock .stop, nthe device at the top and bottom of the chain orstringer that prevents the slider from leaving the chain.stop, bottomSee bottom stop.stop, bridge topSee bridge top stop.stop, releasingSee rele

48、asing stop.stop, topSee top stop.stringer, nthe tape, bead, and element assembly that consti-tutes one side of a chain.subassemblies, nany component or structure that is used inthe assembly of textile product.DISCUSSIONSubassemblies can be in the form of closures (forexample, slide fasteners, button

49、s, hook and loop fasteners) or methodsof joining (for example, stitches and seams).D2050075tape, na strip of woven fabric, film or other material ofvarious designs to which the bead and elements are attachedalong one edge. Attachment of the bead and elements to thetape may be achieved by sewing, weaving integral with thetape, pressing, injection or other methods in order to form astringer.tape ends, nthe tape extending beyond the stops at either orboth ends of the stringers.tape width, exposed See