US3869765A - Bridge top stop for slide fasteners - Google Patents

Bridge top stop for slide fasteners Download PDF

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Publication number
US3869765A
US3869765A US476730A US47673074A US3869765A US 3869765 A US3869765 A US 3869765A US 476730 A US476730 A US 476730A US 47673074 A US47673074 A US 47673074A US 3869765 A US3869765 A US 3869765A
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Prior art keywords
fastener elements
length
fastener
bridge top
top stop
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US476730A
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Takeo Fukuroi
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YKK Corp
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Yoshida Kogyo KK
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    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/24—Details
    • A44B19/36—Means for permanently uniting the stringers at the end; Means for stopping movement of slider at the end
    • 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
    • Y10T24/2596—Zipper or required component thereof including means attaching interlocking surfaces together

Definitions

  • ABSTRACT A bridge type of top end stop is disclosed, which end stop is adapted as a common connection to join the Foreign pp Priority Data upper ends of fastener stringers.
  • the bridge top stop is June 25,1973
  • 48-72l l4 constructed with a body portion bifurcated at one end to provide downwardly projecting jaw portions which define therebetwecn a bay for receiving the wedge of a slider.
  • the body portion is disposed to embracingly overlie a length of coupled fastener elements, while I 1 l l the bifurcated jaw portions are each disposed to em- References Cited bracingly overlie a length of uncoupled fastener ele- UNITED STATES PATENTS ments on each of opposed stringer tapes.
  • This invention relates to slide fasteners and has particular reference to what is commonly referred to as bridge top end stops for use on slide fasteners.
  • Bridge top stops have been adapted as a common connection to join the upper ends of fastener stringers, and slide fasteners equipped with such bridge top stops have found extensive application in garment placket and other closure openings such as in bags, suitcases and the like. While a number of bridge top stops have been proposed in the art, most of them have been found not entirely satisfactory in view of the mechanical strength and positional stability required to withstand severe impinging forces applied in the operation of a slider to open and close the fastener, or stresses tending to pull the stringer tapes laterally apart. Amongst the many reasons rendering the prior-art bridge top stops less durable, it has been the most fatal that their bondage with both the fastener elements and the stringer tapes was weak.
  • the present invention provides a bridge top stop disposed to embracingly overlie a length of fastener elements that remain coupled at an upper terminal end portion of the fastener and further another length of fastener elements that continue from the first mentioned length but are uncoupled, the top stop thus being bonded integrally with these lengths of fastener elements to the stringer tapes.
  • FIG. 1 is a plan view of an upper end portion of a slide fastener at which a bridge top stop is applied in accordance with the invention
  • FIG. 2 is a transverse cross-sectional view taken on the line lI-Il of FIG. 1;
  • FIG. 3 is a view similar to FIG. 1 but showing another bridge top stop embodying the invention
  • FIG. 4 is a transverse cross-sectional view taken on the line IV-IV of FIG. 3;
  • FIG. 5 is a view similar to FIG. 3 but showing still another bridge top stop embodying the invention.
  • FIGS. 1 and 2 there is shown an upper end portion of a slide fastener P, which fastener generally comprises a pair of stringer tapes T ,T and a row of interlocking fastener elements E of conventional construction secured as by sewing threads S to and along one longitudinal edge of each of the stringer tapes, the two rows of fastener elements E being disposed to be interengaged and disengaged by a slider (not shown) to close and open the fastener F in the well known manner.
  • a slide fastener P which fastener generally comprises a pair of stringer tapes T ,T and a row of interlocking fastener elements E of conventional construction secured as by sewing threads S to and along one longitudinal edge of each of the stringer tapes, the two rows of fastener elements E being disposed to be interengaged and disengaged by a slider (not shown) to close and open the fastener F in the well known manner.
  • Designated at 10 is a bridge type of top end stop which is adapted to connect the upper ends of both stringer tapes T ,T and prevent the slider from running off that end of the fastener at which the top stop 10 is prepositioned.
  • the bridge top stop 10 which embodies the features of the invention comprises a body portion 11 bifurcated at one end to provide downwardly pro- 15 jecting jaw portions 12,13.
  • the body portion 11 embraces or covers a first length or group of interengaged fastener elements Ea, while the bifurcations or jaw portions 12,13 embrace or cover a second length or group of disengaged fastener elements Eb on the respective stringer tapes T ,T
  • the bifurcations or jaw portions 12,13 define therebetween a bay or slot 14 for receiving the neck or wedge of the slider and each have an outer periphery 12a, (13a) of a contour substantially conforming with the inner peripheral walls of the flanges of the slider so that the slider can be received smoothly and anchored snugly at the top stop 10.
  • the top stop 10 further includes outwardly directed lateral extensions or flange portions 15,16 which are intimately bonded to the respective stringer tapes T T
  • the material used to form the bridge top stop 10 in this and other subsequently appearing embodiments of the invention may be preferably the same as used to form the fastener elements B so as to achieve intimate bondage of these fastener parts.
  • the embodiments herein presented are all directed to the use of thermoplastic materials both for the fastener elements and the bridge top stops. Therefore, the bridge top stop 10 may be bonded adhesively to or fused together will the fastener F with heat and pressure as for example by high frequency or supersonic treatment, or alternatively by injection molding.
  • the bridge top stop 10 may be preferably in the form of a die cast. While the processes for attaching the bridge top stop 10 to the fastener F do not form the subject matter of this invention, it may be originally preformed to the showings in FIGS. 1 and 2 and secured in place with heat and pressure, or may be so shaped as by punching after attachment to the fastener.
  • the bridge top stop 10 in which it embracingly overlies a length of fastener elements Ea that remain coupled at an upper terminal end portion of the fastener F and further another length of fastener elements Eb that continue from the first mentioned length but are uncoupled, the top stop 10 thus being bonded integrally with these lengths of fastener elements to the stringer tapes T ,T
  • FIGS. 3 and 4 An alternative form of bridge top stop 10 is shown in FIGS. 3 and 4, which arranged in a manner similar to the above described embodiment to embracingly overlie both a first length of coupled fastener elements Ea and a second length of uncoupled fastener elements Eb.
  • the bridge top stop 10 in this embodiment is characterized in that is attached to the fastener F by injection molding as may be understood from the showing of FIG. 4.
  • FIG. 5 another alternative form which is substantially similar to the bridge top stop illustrated in FIGS. 3 and 4 but which includes a modification in which a strip of thermoplastic film 17 is attached together with the body of the bridge top stop 10 to the upper end portion of each of the stringer tapes T,,T so as to reinforce that end portion of the tape.
  • the strip 17 may be injection-molded together with the bridge top stop 10.
  • a slide fastener comprising a pair of stringer tapes, a row of interlocking fastener elements secured to and along one longitudinal edge of each of said stringer tapes and a slider movable along said longitudinal edge to couple and uncouple the rows of fastener elements
  • the improvement which comprises a bridge top stop positioned at an upper end of the fastener and adapted to prevent the slider from running off said upper end, said bridge top stop embracingly overlying a first length of fastener elements that remain coupled at said upper end and a second length of fastener ele ments that continue from said first length but are uncoupled, and said bridge top stop being bonded integrally with said first and second lengths of fastener elements to the stringer tapes.
  • said bridge top stop comprises a body portion disposed to embrace said first length of fastener elements, said body portion being bifurcated at one end to provide downwardly projecting jaw portions which are disposed respectively to embrace said second length of fastener elements on the stringer tapes and which define therebetween a slot for receiving the neck or wedge of the slider.

Landscapes

  • Slide Fasteners (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Sheet Holders (AREA)

Abstract

A bridge type of top end stop is disclosed, which end stop is adapted as a common connection to join the upper ends of fastener stringers. The bridge top stop is constructed with a body portion bifurcated at one end to provide downwardly projecting jaw portions which define therebetween a bay for receiving the wedge of a slider. The body portion is disposed to embracingly overlie a length of coupled fastener elements, while the bifurcated jaw portions are each disposed to embracingly overlie a length of uncoupled fastener elements on each of opposed stringer tapes.

Description

1 Mar. 11, 1975 BRIDGE TOP STOP FOR SLIDE FASTENERS 2332a 19 4/1958 Neitlich,....................... 24/205.ll F
Inventor: Takeo Fukuroi, Uozu, Japan Primary Examiner-Bernard A. Gelak Attorney, Agent, or Firm-Bucknam and Archer {73] Assignee:
Yoshida lKogyo Kabushiki Kaisha, Tokyo, Japan App]. No.: 476,730
ABSTRACT A bridge type of top end stop is disclosed, which end stop is adapted as a common connection to join the Foreign pp Priority Data upper ends of fastener stringers. The bridge top stop is June 25,1973
48-72l l4 constructed with a body portion bifurcated at one end to provide downwardly projecting jaw portions which define therebetwecn a bay for receiving the wedge of a slider. The body portion is disposed to embracingly overlie a length of coupled fastener elements, while I 1 l l the bifurcated jaw portions are each disposed to em- References Cited bracingly overlie a length of uncoupled fastener ele- UNITED STATES PATENTS ments on each of opposed stringer tapes.
2,515,376 24/205.11 F 3 Claims, 5 Drawing Figures PATENTED 1 I9?5 SHEET 1 UP 2 PATENTED W1 1 I975 sumeu 2 FIG.3
FIG.5
BRIDGE TOP STOP FOR SLIDE FASTENERS BACKGROUND OF THE INVENTION This invention relates to slide fasteners and has particular reference to what is commonly referred to as bridge top end stops for use on slide fasteners.
Bridge top stops have been adapted as a common connection to join the upper ends of fastener stringers, and slide fasteners equipped with such bridge top stops have found extensive application in garment placket and other closure openings such as in bags, suitcases and the like. While a number of bridge top stops have been proposed in the art, most of them have been found not entirely satisfactory in view of the mechanical strength and positional stability required to withstand severe impinging forces applied in the operation of a slider to open and close the fastener, or stresses tending to pull the stringer tapes laterally apart. Amongst the many reasons rendering the prior-art bridge top stops less durable, it has been the most fatal that their bondage with both the fastener elements and the stringer tapes was weak.
SUMMARY OF THE INVENTION In view of the noted deficiencies of the prior art, it is an object of the present invention to provide a slide fastener including a new and improved bridge top stop structure of this character which is mechanically durable and positionally stable over extended periods of time.
With this and other objects of the invention in view, the present invention provides a bridge top stop disposed to embracingly overlie a length of fastener elements that remain coupled at an upper terminal end portion of the fastener and further another length of fastener elements that continue from the first mentioned length but are uncoupled, the top stop thus being bonded integrally with these lengths of fastener elements to the stringer tapes.
The features which are believed to be novel and characteristic of this invention are set forth with particularity in the appended claims. The invention itself, however, both as to its construction and manner of operation, will become more apparent from the following description of preferred embodiments taken in connection with the accompanying drawings in which like reference characters denote like parts throughout the several views.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of an upper end portion of a slide fastener at which a bridge top stop is applied in accordance with the invention;
FIG. 2 is a transverse cross-sectional view taken on the line lI-Il of FIG. 1;
FIG. 3 is a view similar to FIG. 1 but showing another bridge top stop embodying the invention;
FIG. 4 is a transverse cross-sectional view taken on the line IV-IV of FIG. 3; and
FIG. 5 is a view similar to FIG. 3 but showing still another bridge top stop embodying the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings and FIGS. 1 and 2 in particular, there is shown an upper end portion of a slide fastener P, which fastener generally comprises a pair of stringer tapes T ,T and a row of interlocking fastener elements E of conventional construction secured as by sewing threads S to and along one longitudinal edge of each of the stringer tapes, the two rows of fastener elements E being disposed to be interengaged and disengaged by a slider (not shown) to close and open the fastener F in the well known manner.
Designated at 10 is a bridge type of top end stop which is adapted to connect the upper ends of both stringer tapes T ,T and prevent the slider from running off that end of the fastener at which the top stop 10 is prepositioned. The bridge top stop 10 which embodies the features of the invention comprises a body portion 11 bifurcated at one end to provide downwardly pro- 15 jecting jaw portions 12,13. The body portion 11 embraces or covers a first length or group of interengaged fastener elements Ea, while the bifurcations or jaw portions 12,13 embrace or cover a second length or group of disengaged fastener elements Eb on the respective stringer tapes T ,T The bifurcations or jaw portions 12,13 define therebetween a bay or slot 14 for receiving the neck or wedge of the slider and each have an outer periphery 12a, (13a) of a contour substantially conforming with the inner peripheral walls of the flanges of the slider so that the slider can be received smoothly and anchored snugly at the top stop 10. The top stop 10 further includes outwardly directed lateral extensions or flange portions 15,16 which are intimately bonded to the respective stringer tapes T T The material used to form the bridge top stop 10 in this and other subsequently appearing embodiments of the invention may be preferably the same as used to form the fastener elements B so as to achieve intimate bondage of these fastener parts. For purposes of illustration, the embodiments herein presented are all directed to the use of thermoplastic materials both for the fastener elements and the bridge top stops. Therefore, the bridge top stop 10 may be bonded adhesively to or fused together will the fastener F with heat and pressure as for example by high frequency or supersonic treatment, or alternatively by injection molding. Where metallic fastener elements are employed, the bridge top stop 10 may be preferably in the form of a die cast. While the processes for attaching the bridge top stop 10 to the fastener F do not form the subject matter of this invention, it may be originally preformed to the showings in FIGS. 1 and 2 and secured in place with heat and pressure, or may be so shaped as by punching after attachment to the fastener.
The important features of the invention reside, however, in the arrangement of the bridge top stop 10 in which it embracingly overlies a length of fastener elements Ea that remain coupled at an upper terminal end portion of the fastener F and further another length of fastener elements Eb that continue from the first mentioned length but are uncoupled, the top stop 10 thus being bonded integrally with these lengths of fastener elements to the stringer tapes T ,T
An alternative form of bridge top stop 10 is shown in FIGS. 3 and 4, which arranged in a manner similar to the above described embodiment to embracingly overlie both a first length of coupled fastener elements Ea and a second length of uncoupled fastener elements Eb. The bridge top stop 10 in this embodiment is characterized in that is attached to the fastener F by injection molding as may be understood from the showing of FIG. 4.
There is shown in FIG. 5 another alternative form which is substantially similar to the bridge top stop illustrated in FIGS. 3 and 4 but which includes a modification in which a strip of thermoplastic film 17 is attached together with the body of the bridge top stop 10 to the upper end portion of each of the stringer tapes T,,T so as to reinforce that end portion of the tape. The strip 17 may be injection-molded together with the bridge top stop 10.
What is claimed is:
1. In a slide fastener comprising a pair of stringer tapes, a row of interlocking fastener elements secured to and along one longitudinal edge of each of said stringer tapes and a slider movable along said longitudinal edge to couple and uncouple the rows of fastener elements, the improvement which comprises a bridge top stop positioned at an upper end of the fastener and adapted to prevent the slider from running off said upper end, said bridge top stop embracingly overlying a first length of fastener elements that remain coupled at said upper end and a second length of fastener ele ments that continue from said first length but are uncoupled, and said bridge top stop being bonded integrally with said first and second lengths of fastener elements to the stringer tapes.
2. The improvement as defined in claim 1 wherein said bridge top stop comprises a body portion disposed to embrace said first length of fastener elements, said body portion being bifurcated at one end to provide downwardly projecting jaw portions which are disposed respectively to embrace said second length of fastener elements on the stringer tapes and which define therebetween a slot for receiving the neck or wedge of the slider.
3. The improvement as defined in claim 1 which further includes a strip of thermoplastic film secured together with said bridge top stop to the upper end portion of each of the stringer tapes.

Claims (3)

1. In a slide fastener comprising a pair of stringer tapes, a row of interlocking fastener elements secured to and along one longitudinal edge of each of said stringer tapes and a slider movable along said longitudinal edge to couple and uncouple the rows of fastener elements, the improvement which comprises a bridge top stop positioned at an upper end of the fastener and adapted to prevent the slider from running off said upper end, said bridge top stop embracingly overlying a first length of fastener elements that remain coupled at said upper end and a second length of fastener elements that continue from said first length but are uncoupled, and said bridge top stop being bonded integrally with said first and second lengths of fastener elements to the stringer tapes.
1. In a slide fastener comprising a pair of stringer tapes, a row of interlocking fastener elements secured to and along one longitudinal edge of each of said stringer tapes and a slider movable along said longitudinal edge to couple and uncouple the rows of fastener elements, the improvement which comprises a bridge top stop positioned at an upper end of the fastener and adapted to prevent the slider from running off said upper end, said bridge top stop embracingly overlying a first length of fastener elements that remain coupled at said upper end and a second length of fastener elements that continue from said first length but are uncoupled, and said bridge top stop being bonded integrally with said first and second lengths of fastener elements to the stringer tapes.
2. The improvement as defined in claim 1 wherein said bridge top stop comprises a body portion disposed to embrace said first length of fastener elements, said body portion being bifurcated at one end to provide downwardly projecting jaw portions which are disposed respectively to embrace said second length of fastener elements on the stringer tapes and which define therebetween a slot for receiving the neck or wedge of the slider.
US476730A 1973-06-25 1974-06-05 Bridge top stop for slide fasteners Expired - Lifetime US3869765A (en)

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JP48072114A JPS5020842A (en) 1973-06-25 1973-06-25

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JP (1) JPS5020842A (en)
AT (1) AT344640B (en)
BE (1) BE816051A (en)
BR (1) BR7405146D0 (en)
CA (1) CA1016343A (en)
CH (1) CH564325A5 (en)
DE (2) DE2430293C3 (en)
ES (1) ES204074Y (en)
FR (1) FR2233957B1 (en)
GB (1) GB1435280A (en)
HK (1) HK34678A (en)
IT (1) IT1011970B (en)
MY (1) MY7900065A (en)
NL (1) NL7407651A (en)
SE (1) SE427151B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959858A (en) * 1974-09-04 1976-06-01 Yoshida Kogyo Kabushiki Kaisha Bridge top stop for slide fasteners
US4034445A (en) * 1975-07-28 1977-07-12 Textron, Inc. Molded top stop and apparatus and method of manufacture
US4780937A (en) * 1986-05-06 1988-11-01 Yoshida Kogyo K.K. Fluid-tight slide fastener
US4782563A (en) * 1986-05-06 1988-11-08 Yoshida Kogyo K. K. End stop for slide fasteners
US4817252A (en) * 1986-05-06 1989-04-04 Yoshida Kogyo K. K. Fluid-tight slide fastener
US5019065A (en) * 1987-12-17 1991-05-28 The Procter & Gamble Company Disposable absorbent article with combination mechanical and adhesive tape fastener system
US6497014B2 (en) * 2000-06-20 2002-12-24 Ykk Corporation Fluidtight zip fastener
US20040211041A1 (en) * 2003-04-25 2004-10-28 Koitsu Morioka Air/water-tight slide fastener

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4123827A (en) * 1977-07-27 1978-11-07 Yoshida Kogyo K.K. Slide fastener chain

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515376A (en) * 1946-08-09 1950-07-18 Goodrich Co B F End stop for sealing closures
US2832119A (en) * 1953-09-30 1958-04-29 Cue Fastenar Inc Slide fastener stops

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH064518U (en) * 1992-06-29 1994-01-21 株式会社東芝 Wall-mounted air conditioner

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515376A (en) * 1946-08-09 1950-07-18 Goodrich Co B F End stop for sealing closures
US2832119A (en) * 1953-09-30 1958-04-29 Cue Fastenar Inc Slide fastener stops

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959858A (en) * 1974-09-04 1976-06-01 Yoshida Kogyo Kabushiki Kaisha Bridge top stop for slide fasteners
US4034445A (en) * 1975-07-28 1977-07-12 Textron, Inc. Molded top stop and apparatus and method of manufacture
US4780937A (en) * 1986-05-06 1988-11-01 Yoshida Kogyo K.K. Fluid-tight slide fastener
US4782563A (en) * 1986-05-06 1988-11-08 Yoshida Kogyo K. K. End stop for slide fasteners
US4817252A (en) * 1986-05-06 1989-04-04 Yoshida Kogyo K. K. Fluid-tight slide fastener
US5019065A (en) * 1987-12-17 1991-05-28 The Procter & Gamble Company Disposable absorbent article with combination mechanical and adhesive tape fastener system
US6497014B2 (en) * 2000-06-20 2002-12-24 Ykk Corporation Fluidtight zip fastener
US20040211041A1 (en) * 2003-04-25 2004-10-28 Koitsu Morioka Air/water-tight slide fastener
US7082648B2 (en) * 2003-04-25 2006-08-01 Ykk Corporation Air/water-tight slide fastener

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Publication number Publication date
JPS5020842A (en) 1975-03-05
DE2430293A1 (en) 1975-01-23
AT344640B (en) 1978-08-10
CH564325A5 (en) 1975-07-31
CA1016343A (en) 1977-08-30
ES204074Y (en) 1976-05-01
HK34678A (en) 1978-07-14
FR2233957A1 (en) 1975-01-17
DE2430293B2 (en) 1979-09-06
SE427151B (en) 1983-03-14
DE7421504U (en) 1974-09-26
NL7407651A (en) 1974-12-30
AU6982874A (en) 1975-12-11
ATA502774A (en) 1977-12-15
ES204074U (en) 1976-01-16
MY7900065A (en) 1979-12-31
BE816051A (en) 1974-09-30
GB1435280A (en) 1976-05-12
DE2430293C3 (en) 1980-05-14
FR2233957B1 (en) 1978-01-13
BR7405146D0 (en) 1975-09-30
SE7407817L (en) 1974-12-27
IT1011970B (en) 1977-02-10

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