US3484906A - Slide clasp fastener - Google Patents
Slide clasp fastener Download PDFInfo
- Publication number
- US3484906A US3484906A US711120A US3484906DA US3484906A US 3484906 A US3484906 A US 3484906A US 711120 A US711120 A US 711120A US 3484906D A US3484906D A US 3484906DA US 3484906 A US3484906 A US 3484906A
- Authority
- US
- United States
- Prior art keywords
- elements
- fastener
- slider
- tapes
- leg
- 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.)
- Expired - Lifetime
Links
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000009958 sewing Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/24—Details
- A44B19/40—Connection of separate, or one-piece, interlocking members to stringer tapes; Reinforcing such connections, e.g. by stitching
- A44B19/406—Connection of one-piece interlocking members
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/25—Zipper or required component thereof
- Y10T24/2518—Zipper or required component thereof having coiled or bent continuous wire interlocking surface
- Y10T24/2525—Zipper or required component thereof having coiled or bent continuous wire interlocking surface with mounting portion having structural formations complementary to stitching
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/25—Zipper or required component thereof
- Y10T24/2518—Zipper or required component thereof having coiled or bent continuous wire interlocking surface
- Y10T24/2527—Attached by stitching
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/25—Zipper or required component thereof
- Y10T24/2591—Zipper or required component thereof with means for concealing surfaces
Definitions
- Sliding clasp fasteners having two rows of interlocking elements formed from a single plastic filament and secured to the folded edges of a pair of opposed carrier tapes are well known, and such fasteners when closed by a reciprocating slider mask the elements from external view, only leaving a linear seam in the junction of the opposed tapes.
- Fasteners of this type have the slider mounted with its free edges inserted in between the folds of the tapes. This arrangement not only renders the movement of the slider rather sluggish, but also gives a tendency for the slider to rub against the folded portions of the tapes and the stitchings that hold the elements thereto.
- the fastener comprises a pair of carrier tapes each having an inwardly folded edge portion, a row of meandering fastener elements formed from a single plastics filament and secured to the edge portion of each of said carrier tapes, and a slider slidably mounted on said carrier tapes for coupling and Vuncoupling said fastener elements, each fastener element'including a coupling head, two legs one shorter than the other, and connecting portions, and said slider having a guide channel configured to embrace the connecting portion continguous to the long leg, a flank portion abutting the connecting portion of the short leg, and free edges terminating short of the tape surface without eX- tending into the folded edge portions of the respective tapes.
- FIG. 1 is a transverse cross-sectional view illustrating one embodiment of the invention
- FIG. 2 is a transverse cross-sectional view illustrating the second embodiment of the invention.
- FIGS. 3a and 3b are respectively a plan and a front elevational view of the interlocking fastener element chain employed in the construction of the concealed fastener of the invention, while FIG. 3c is a partly sectional side view of one ofthe elements of said chain.
- FIG. 1 shows a pair of carrier tape stringers each having an inwardly folded edge portion 11 to which a row of interlocking fastener elements 12 are secured by stitching 13.
- a chain of these elements 12 are formed from a single plastics filament, such as nylon,
- each element has a base portion 14 deformed to provide a coupling head 15 for engagement with a corresponding part of the adjacent mating interlocking element.
- the element 12 according to the invention is provided with two leg or limb portions, of which the upper leg 16 abutting the bottom surface of the folded tape portion is shorter in length than the lower leg 17, as clearly seen from FIG. 3a.
- a slider 18 having guide channels 19 configured in conformity with the round periphery of the connecting portion 20 of each long-leg element which lies opposite to the coupling head portion 15, and guide flanks 21 spaced apart by a distance determined by the total length of the two adjacent short-leg elements in their coupled disposition. It is preferred for 'the purposes of the invention to terminate the free edges :22 of the slider 18 normally at a point at least apart from the tape surface without having them inserted in between the folds of the respective carrier tapes, as shown in FIGS. 1 and 2.
- the slider 18 operates to close the two opposed carrier tapes, when the connecting portions 20 of the long-leg elements 17 are guided embracingly by and in sliding contact with the walls of the guide channels 19, while the connnecting portions 20 of the short-leg elements are similarly guided by the flanks 21 of the slider.
- the slider according to the invention does not forcibly contact the frictionally resistant fabric system of the tape or the stitchings holding the elements to the folded edge portions of the tapes. This facilitates the sliding motion of the slider with the added fact that the inner guide walls thereof are maintained in sliding engagement with the least frictionally resistant surfaces of the plastics elements during coupling and uncoupling operation.
- a spacing braid 23 inserted between the upper and lower legs of the elements and extending longitudinally of the entire fastener. The provision of this braid serves to hold the elements from shifting out of position with respect to the stitchings when lateral load is applied to the closed tape juncture.
- the mode of stitching the elements to the tape may be a two-thread chain stitch or other stitches known in the art. Or, the elements may be secured in place simultaneously as the tape is woven.
- a sliding clasp fastener of the concealed type which comprises a pair of carrier tapes each having an inwardly folded edge portion, a row of meandering fastener elements formed from a single plastics filament and secured to the edge portion of each of said carrier tapes, and a slider slidably mounted on said carrier tapes for coupling and uncoupling said fastener elements, each fastener element including a coupling head, two legs one shorter than the other, and connecting portions, and said slider having a guide channel configured to embrace the connecting portion contiguous to the long leg, a flank portion abutting the connecting portion of the short leg, and free edges terminating short of the tape surface without eX- tending into the folded edge portions of the respective tapes.
Landscapes
- Slide Fasteners (AREA)
Description
Dec. 23, 1969 TADAO Yogi-HDA 3,484,906
SLIDE CLASP FASTENER Filed March 6, 1968 l: l @F. 20 20 /7 /2 United States Patent O 3,484,906 SLIDE CLASP FASTENER Tadao Yoshida, 171 3-chome, TamagaWa-Yoga-cho, Setagaya-ku, Tokyo, Japan Filed Mar. 6, 1968, Ser. No. 711,120 Int. Cl. A44b 19/14 U.S. Cl. 2li- 205.1 4 Claims ABSTRACT lor THE DlscLosURn This invention relates to sliding clasp fasteners or y zippers, and has particular reference to a sliding clasp fastener of the concealed type which substantially simulates a garment seam in its closed position.
Sliding clasp fasteners having two rows of interlocking elements formed from a single plastic filament and secured to the folded edges of a pair of opposed carrier tapes are well known, and such fasteners when closed by a reciprocating slider mask the elements from external view, only leaving a linear seam in the junction of the opposed tapes.
Fasteners of this type have the slider mounted with its free edges inserted in between the folds of the tapes. This arrangement not only renders the movement of the slider rather sluggish, but also gives a tendency for the slider to rub against the folded portions of the tapes and the stitchings that hold the elements thereto.
Whereas, it is an object of the present invention to provide a novel sliding clasp which will eliminate the above noted diiculties.
Briefly stated, the fastener according to this invention comprises a pair of carrier tapes each having an inwardly folded edge portion, a row of meandering fastener elements formed from a single plastics filament and secured to the edge portion of each of said carrier tapes, and a slider slidably mounted on said carrier tapes for coupling and Vuncoupling said fastener elements, each fastener element'including a coupling head, two legs one shorter than the other, and connecting portions, and said slider having a guide channel configured to embrace the connecting portion continguous to the long leg, a flank portion abutting the connecting portion of the short leg, and free edges terminating short of the tape surface without eX- tending into the folded edge portions of the respective tapes. For a better understanding of the invention, there are presented in the drawings preferred forms which accomplish the object of the invention. In the accompanying drawings:
FIG. 1 is a transverse cross-sectional view illustrating one embodiment of the invention;
FIG. 2 is a transverse cross-sectional view illustrating the second embodiment of the invention; and
FIGS. 3a and 3b are respectively a plan and a front elevational view of the interlocking fastener element chain employed in the construction of the concealed fastener of the invention, while FIG. 3c is a partly sectional side view of one ofthe elements of said chain.
Reference to FIG. 1 shows a pair of carrier tape stringers each having an inwardly folded edge portion 11 to which a row of interlocking fastener elements 12 are secured by stitching 13. A chain of these elements 12 are formed from a single plastics filament, such as nylon,
ice
into a meander structure in which each element has a base portion 14 deformed to provide a coupling head 15 for engagement with a corresponding part of the adjacent mating interlocking element.
The element 12 according to the invention is provided with two leg or limb portions, of which the upper leg 16 abutting the bottom surface of the folded tape portion is shorter in length than the lower leg 17, as clearly seen from FIG. 3a. To conform cooperatively with this alternately short and long limb structure of the element chain, there is proposed a slider 18 having guide channels 19 configured in conformity with the round periphery of the connecting portion 20 of each long-leg element which lies opposite to the coupling head portion 15, and guide flanks 21 spaced apart by a distance determined by the total length of the two adjacent short-leg elements in their coupled disposition. It is preferred for 'the purposes of the invention to terminate the free edges :22 of the slider 18 normally at a point at least apart from the tape surface without having them inserted in between the folds of the respective carrier tapes, as shown in FIGS. 1 and 2.
With this constr-uction, the slider 18 operates to close the two opposed carrier tapes, when the connecting portions 20 of the long-leg elements 17 are guided embracingly by and in sliding contact with the walls of the guide channels 19, while the connnecting portions 20 of the short-leg elements are similarly guided by the flanks 21 of the slider. In this way, contrary to conventional fastener constructions of the concealed fashion, the slider according to the invention does not forcibly contact the frictionally resistant fabric system of the tape or the stitchings holding the elements to the folded edge portions of the tapes. This facilitates the sliding motion of the slider with the added fact that the inner guide walls thereof are maintained in sliding engagement with the least frictionally resistant surfaces of the plastics elements during coupling and uncoupling operation.
iIn the first embodiment shown in FIG. 1, there is provided a spacing braid 23 inserted between the upper and lower legs of the elements and extending longitudinally of the entire fastener. The provision of this braid serves to hold the elements from shifting out of position with respect to the stitchings when lateral load is applied to the closed tape juncture.
While the problem of wear has been considered of the tape and of the upper sewing threads securing the shortleg elements to the folded edge portions of the tapes, there is further provided means for preventing wear of the lower sewing threads which would otherwise occur in contact with the base wall of the slider. This wear preventing means is revealed in the first embodiment, FIG. 1, as a pair of longtiudinal recesses 24 formed in the base wall of the slider. In the second embodiment, FIG. 2, it is revealed as grooves 25 formed in the lower legs 17.
In addition to the various advantages of the invention that have been advanced, it will be understood that since the free edges of the slider terminate short of the tape surface and do not extend into the folds of the tape stringers, the thickness of the slider is so much reduced as compared with conventional counterparts, which, as a. result, will facilitate ironing the garment to which the fastener is attached.
Having thus described the invention in respect of the two specific embodiments presently preferred, it is to be understood that `this invention is not limited to the precise arrangements and instrumentalities shown. As for an eX- ample, the mode of stitching the elements to the tape may be a two-thread chain stitch or other stitches known in the art. Or, the elements may be secured in place simultaneously as the tape is woven.
What is claimed is:
1. A sliding clasp fastener of the concealed type which comprises a pair of carrier tapes each having an inwardly folded edge portion, a row of meandering fastener elements formed from a single plastics filament and secured to the edge portion of each of said carrier tapes, and a slider slidably mounted on said carrier tapes for coupling and uncoupling said fastener elements, each fastener element including a coupling head, two legs one shorter than the other, and connecting portions, and said slider having a guide channel configured to embrace the connecting portion contiguous to the long leg, a flank portion abutting the connecting portion of the short leg, and free edges terminating short of the tape surface without eX- tending into the folded edge portions of the respective tapes.
2. A sliding clasp fastener as defined in claim 1 wherein there is provided a spacing braid between the legs of the elements.
References Cited UNITED STATES PATENTS 1/1969` Porepp. 3/ 1969 Swainson.
FOREIGN PATENTS `6/ 1966 Great Britain.
15 BERNARD A. GELAK, Primary Examiner U.S. C1. X.R. 24-205 .13
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US71112068A | 1968-03-06 | 1968-03-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3484906A true US3484906A (en) | 1969-12-23 |
Family
ID=24856849
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US711120A Expired - Lifetime US3484906A (en) | 1968-03-06 | 1968-03-06 | Slide clasp fastener |
Country Status (1)
Country | Link |
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US (1) | US3484906A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3541649A (en) * | 1968-12-20 | 1970-11-24 | Textron Inc | Slide fastener |
US3691599A (en) * | 1970-12-21 | 1972-09-19 | Naegele Feinmaschinenbau | Slide fastener |
US3694868A (en) * | 1969-01-23 | 1972-10-03 | Naegele Feinmaschinenbau | Slide fastener stringer |
US3736628A (en) * | 1970-02-14 | 1973-06-05 | Lysta As | Stringer having bonded coupling element |
US3768125A (en) * | 1971-10-13 | 1973-10-30 | Opti Holding Ag | Dyed slide fastener with stitched-on coupling coil |
US3783476A (en) * | 1971-10-13 | 1974-01-08 | Opti Holding Ag | Slide fastener stringer with stitched coupling element |
US3789465A (en) * | 1969-07-17 | 1974-02-05 | Textron Inc | Slide fastener device |
US3795950A (en) * | 1969-02-18 | 1974-03-12 | Sohr Hans Ulrich | Concealed slide fastener |
US3922760A (en) * | 1971-12-21 | 1975-12-02 | Yoshida Kogyo Kk | Concealed zip fastener |
US3946465A (en) * | 1975-01-09 | 1976-03-30 | Textron Inc. | Stringer for a slide fastener |
US4034444A (en) * | 1975-01-09 | 1977-07-12 | Textron, Inc. | Slide fastener stringer |
US20230172323A1 (en) * | 2020-09-18 | 2023-06-08 | Kee (Hubei) Zippers Manufacturing Limited | Fastener tape, slide fastener, skin product, and method of forming fastener tape |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1032554A (en) * | 1963-08-14 | 1966-06-08 | Lightning Fasteners Ltd | Stringers for sliding clasp fasteners |
US3422503A (en) * | 1965-11-30 | 1969-01-21 | Hans Porepp | Covered watertight slide fastener |
US3430304A (en) * | 1966-01-31 | 1969-03-04 | Lightning Fasteners Ltd | Sliding clasp fastener stringers |
-
1968
- 1968-03-06 US US711120A patent/US3484906A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1032554A (en) * | 1963-08-14 | 1966-06-08 | Lightning Fasteners Ltd | Stringers for sliding clasp fasteners |
US3422503A (en) * | 1965-11-30 | 1969-01-21 | Hans Porepp | Covered watertight slide fastener |
US3430304A (en) * | 1966-01-31 | 1969-03-04 | Lightning Fasteners Ltd | Sliding clasp fastener stringers |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3541649A (en) * | 1968-12-20 | 1970-11-24 | Textron Inc | Slide fastener |
US3694868A (en) * | 1969-01-23 | 1972-10-03 | Naegele Feinmaschinenbau | Slide fastener stringer |
US3795950A (en) * | 1969-02-18 | 1974-03-12 | Sohr Hans Ulrich | Concealed slide fastener |
US3789465A (en) * | 1969-07-17 | 1974-02-05 | Textron Inc | Slide fastener device |
US3736628A (en) * | 1970-02-14 | 1973-06-05 | Lysta As | Stringer having bonded coupling element |
US3691599A (en) * | 1970-12-21 | 1972-09-19 | Naegele Feinmaschinenbau | Slide fastener |
US3783476A (en) * | 1971-10-13 | 1974-01-08 | Opti Holding Ag | Slide fastener stringer with stitched coupling element |
US3768125A (en) * | 1971-10-13 | 1973-10-30 | Opti Holding Ag | Dyed slide fastener with stitched-on coupling coil |
US3922760A (en) * | 1971-12-21 | 1975-12-02 | Yoshida Kogyo Kk | Concealed zip fastener |
US3946465A (en) * | 1975-01-09 | 1976-03-30 | Textron Inc. | Stringer for a slide fastener |
US4034444A (en) * | 1975-01-09 | 1977-07-12 | Textron, Inc. | Slide fastener stringer |
US20230172323A1 (en) * | 2020-09-18 | 2023-06-08 | Kee (Hubei) Zippers Manufacturing Limited | Fastener tape, slide fastener, skin product, and method of forming fastener tape |
US12022918B2 (en) * | 2020-09-18 | 2024-07-02 | Kee (Hubei) Zippers Manufacturing Limited | Fastener tape, slide fastener, skin product, and method of forming fastener tape |
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