CA1037232A - Slide fastener end stop - Google Patents
Slide fastener end stopInfo
- Publication number
- CA1037232A CA1037232A CA209,536A CA209536A CA1037232A CA 1037232 A CA1037232 A CA 1037232A CA 209536 A CA209536 A CA 209536A CA 1037232 A CA1037232 A CA 1037232A
- Authority
- CA
- Canada
- Prior art keywords
- generally
- plate members
- channel
- beaded
- inner peripheral
- 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
Links
Classifications
-
- 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
Landscapes
- Slide Fasteners (AREA)
- Control Of Resistance Heating (AREA)
- Control Of Temperature (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A bridge top end stop for slide fasteners is provided for preventing a slider from running off of the upper end of the slide fastener, which top stop has a substantially horse-shoe-shaped body including a channel or opening through which a beaded edge of a fastener tape is threaded to position the top stop on the fastener. The top stop body is secured to-gether into positive engagement with the beaded edge, where-upon the channel is completely filled up by the beaded edge.
A bridge top end stop for slide fasteners is provided for preventing a slider from running off of the upper end of the slide fastener, which top stop has a substantially horse-shoe-shaped body including a channel or opening through which a beaded edge of a fastener tape is threaded to position the top stop on the fastener. The top stop body is secured to-gether into positive engagement with the beaded edge, where-upon the channel is completely filled up by the beaded edge.
Description
This invention relates generally to slide fasteners and ; in particular to what is commonly referred to as bridge top stops whose primary function is to inseparably connect the upper ends of the stringers of a slide fastener for limiting the upward movement of a slider in the operation of opening or closing the fastener stringer.
As is well known, slide fasteners equipped with bridge top stops of the character described have found extensive use in garment placket and other closure openings including those in bags, suitcases and like articles. While a wide variety of bridge top stops have been proposed and used in the art, most of them have been found not entirely satisfactory in that the bondage of such prior-art top stops to the fastener stringers, which is effected for example by injection-moulding of U-shaped members to reinforced or beaded edges of the stringer tapes, is not sufficiently strong to withstand greater shocks or lateral pull usually applied to the bridge type of -~
top stop than to any other ordinary top stops. The prior-art bridge top stops have therefore often experienced objectionable , deformation or in the worst case detachment from the stringer :~ tapes.
; In view of the above-noted deficiencies of the prior . art, it is an object of the present invention to provide a new and improved bridge top stop for slide fasteners which is simple in construction and highly reliable in function.
It is a more specific object of the invention to pro-vide a bridge top stop which can be secured with sufficient mechanical strength and positional stability to reinforced or '~, `` ~1037232 beaded edges of the stringer tapes so as to remain in service over extended lengths of time.
According to the present invention, there is provided a slide fastener including a pair of stringer tapes each carrying a row of interlocking fastener elements on a beaded longitudinal edge thereof and a slider movable along said rows of fastener elements for coupling and uncoupling the ..
same, a the_moplastic bridge top stop comprising a generally U-shaped channel member formed by two similar plate members spaced apart in a generally parallel relationship and inter-connected by a generally U-shaped inner peripheral wall member at inner peripheral edges of said plate members, said plate members defining with said peripheral wall member a channel generally U-shaped in plan, said channel being completely filled up with fastener element-free portions of said beaded edges in compressed condition, said portions of said beaded edges of the respective stringer tapes and generally the entire length of the inner peripheral wall member being fused together at least one of said plate members being provided at the outer ;:~
peripheral edge thereof with a flange protruding to the other plate member to define with same a circumferential slit, and flange being positioned to hold the longitudinal edge portion. of the respective stringer tapes that lie immediately adjacent said beaded edges.
The features which are believed to be novel and charac-teristic of this invention are set forth with particularity in the appended claims. The invention itself, however, as well as the additional objects and advantages thereof, will be best understood from the following description of a preferred embodi-ment when taken in conjunction with the accompanying drawings wherein like reference characters denote corresponding parts of the several views, and wherein:
.
103723~ :
Fig. 1 is a plan view of a slide fastener having mounted , ` thereon a bridge top stop constructed in accordance with the invention;
::. Fig. 2 is a perspective view of the bridge top stop shown -. : in Fig. l;
.
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103~ 32 Pig. 3 is a transverse cross-sectional view taken on ~- the line III - III of Fig. 1, showing the bridge top stop pre-positioned on and along the beaded edges of the stringer tapes;
and Flg. 4 is a view similar to Fig. 3 but showing the bridge top stop compressed and affixed to the beaded edges of the stringer tapes.
Reference is first directed to Fig. 1 to briefly describe ; the general organizatinn of a slide~fastener employing the; 10 bridge top stop according to this invention. The slide fas-tener generally designated at 10 comprises a pair of stringer ~ tapes 11 and 12 each carrying along their respective longitudi-; nal beaded edges lla and 12a a row of interlocking fastener elements E secured in place by sewing stitches S in the well ,; .
known manner. The type of fastener elements E is optional in the practice of the in~ention; for example, it may be of a ` :; -continuous plastic filament in the form of a helical spring as presently shown, or in a meandering form, or of a metal in a -discre~e formation. The oppcsite rows of fastener elements E
are brought into or out of engagement with each other by a slider 13 as the latter is moved therealong to close or open the fastener 10 in the usual manner. The reference numeral 14 generally designates a preferred form of the bridge top stop ac~ording to the invention.
- As illustrated in greater detail in Fig. 2 the bridge top stop 14 has a substantially horse-shoë shaped body (also referred to as "a generally U-shaped channel membern) which has bifurcations 15a and 15b ex*ending parallel with each other ;~ and which comprises a pair of similar plate members 16 and 17 : _ 4 _ ~:
~' .
)37Z3Z ~:
: interconnected at their inner peripheral edges by a peripheral wall member 18 (also referred to as "a generally U-shaped ` inner peripheral wall member"). The upper and lower plate members 16 and 17 have formed at and along their respective outer peripheral edges inwardly directed flanges 15a and 17a tha ; are spaced apart by a circumferential slit 19. As shown, there ~
~ is formed a substantially cross-sectionally square channel 20 :.
.. which is defined by the plate members 16, 17, the inner peri-pheral wall 18 and flanges 16a, 17a at the outèr peripheral edges of members 16, 17. The channel extends substantially ::~ in a "U"-shaped configuration throughout the entire peripheral . length of the body 15. The channel 20 has a dimen-: I sion calculated to accommodate the beaded edge lla (12a) .-:
.. . ..
of the tape 11, (12) such that its interior space may :, be fully and completely filled by the beaded edge .;~ lla,(12a) when the top stop body 15 is secured together into , positive engagement with the latter as hereafter described.
-. 15 The circumferential slit 19 which communicates with the channel , 20 is initially just large enough to permit a given thickness .
of tape 11,(12) to be threaded therethrough. ~.
!
:., The bridge top stop 14 of the above construction and . configuration is mounted on the upper ends of the stringer ~ :
' 20 tapes 11,12 in the manner depicted in Figs. 3 and 4. The - .
S beaded edges lla and 12a o~ separated stringer tapes 11 and - 12 are threaded through the channel 20 in the respective bifur~
~; cations l5a and 15b of the top stop 14. In which instance, the longitudinal edge portions of the tape web designated at 21 immediately adjacent the beaded edges lla,12a are threaded ~:
through the slit 19. As and after the top stop 14 has thus been mounted in the desired position on the stringer tapes 11,12 - as illustrated in Pig. 3, it is secured together into positi~e ~
~ ':
. .
~03723Z
. engagement with the beaded edges lla,12a in a direction perpen-dicular to the plane of the slide fastener 10 by suitable means . such as for example by the known techniques of supersonic or high frequency heating where the top stop 14 is formed of a .~ S thermoplastic material, or by punching where it is of a metal.
..
The final shape of the top stop 14 thus secured to the stringer tapes 11,12 is shown in Fig. 4 from which it will be seen that .: the beaded edges lla,12a are completely embedded and firmly . anchored in the channel 20 in a manner to fill up the interior spacing of the latter, while the longitudinal edge portions 21 ... .
- of the respective stringer tapes 11,12 are firmly caught in -~. the slit 19 between the flanges l~a,17a w~ereby the top stop ~ 14 can be stabilized in position against increased external . .stresses.
Those skilled in the art will readily appreciate different modifications deferring from the preferred - embodiment disclosed herein before. Thus, for instance, one can re~dily conceive an arrangement wherein only one of the plate members 16, 17 is provided with O the flange, the other plate member being generally flat. Such modification,-together with other modifications, may differ from the preferred embodiment as disclosed, however, they would still fall within the scope of the present invention as defined in the accompanying claims.
. ' .
. . .
. ~.
-. 11.-. , .`' ..
As is well known, slide fasteners equipped with bridge top stops of the character described have found extensive use in garment placket and other closure openings including those in bags, suitcases and like articles. While a wide variety of bridge top stops have been proposed and used in the art, most of them have been found not entirely satisfactory in that the bondage of such prior-art top stops to the fastener stringers, which is effected for example by injection-moulding of U-shaped members to reinforced or beaded edges of the stringer tapes, is not sufficiently strong to withstand greater shocks or lateral pull usually applied to the bridge type of -~
top stop than to any other ordinary top stops. The prior-art bridge top stops have therefore often experienced objectionable , deformation or in the worst case detachment from the stringer :~ tapes.
; In view of the above-noted deficiencies of the prior . art, it is an object of the present invention to provide a new and improved bridge top stop for slide fasteners which is simple in construction and highly reliable in function.
It is a more specific object of the invention to pro-vide a bridge top stop which can be secured with sufficient mechanical strength and positional stability to reinforced or '~, `` ~1037232 beaded edges of the stringer tapes so as to remain in service over extended lengths of time.
According to the present invention, there is provided a slide fastener including a pair of stringer tapes each carrying a row of interlocking fastener elements on a beaded longitudinal edge thereof and a slider movable along said rows of fastener elements for coupling and uncoupling the ..
same, a the_moplastic bridge top stop comprising a generally U-shaped channel member formed by two similar plate members spaced apart in a generally parallel relationship and inter-connected by a generally U-shaped inner peripheral wall member at inner peripheral edges of said plate members, said plate members defining with said peripheral wall member a channel generally U-shaped in plan, said channel being completely filled up with fastener element-free portions of said beaded edges in compressed condition, said portions of said beaded edges of the respective stringer tapes and generally the entire length of the inner peripheral wall member being fused together at least one of said plate members being provided at the outer ;:~
peripheral edge thereof with a flange protruding to the other plate member to define with same a circumferential slit, and flange being positioned to hold the longitudinal edge portion. of the respective stringer tapes that lie immediately adjacent said beaded edges.
The features which are believed to be novel and charac-teristic of this invention are set forth with particularity in the appended claims. The invention itself, however, as well as the additional objects and advantages thereof, will be best understood from the following description of a preferred embodi-ment when taken in conjunction with the accompanying drawings wherein like reference characters denote corresponding parts of the several views, and wherein:
.
103723~ :
Fig. 1 is a plan view of a slide fastener having mounted , ` thereon a bridge top stop constructed in accordance with the invention;
::. Fig. 2 is a perspective view of the bridge top stop shown -. : in Fig. l;
.
~,: 10 :, ~
. -:, :; ' ' . ' ' ' .''.: '~ :.
::
:: ',:;
~; . .
.:,.; ................................................................... . .
. .
, ,J .:
''.'i ~:
... ~' .
'V "', . :
... . ..
. 20 ~r . .-.
.. : ~
'"' ' '''," ' : ' . .
' .; ' ' '; ' . ., .' ~ -,.~. .
: .~ "
. .
: ' .; ,, ~ 3a -- ~ , . . . . .....
103~ 32 Pig. 3 is a transverse cross-sectional view taken on ~- the line III - III of Fig. 1, showing the bridge top stop pre-positioned on and along the beaded edges of the stringer tapes;
and Flg. 4 is a view similar to Fig. 3 but showing the bridge top stop compressed and affixed to the beaded edges of the stringer tapes.
Reference is first directed to Fig. 1 to briefly describe ; the general organizatinn of a slide~fastener employing the; 10 bridge top stop according to this invention. The slide fas-tener generally designated at 10 comprises a pair of stringer ~ tapes 11 and 12 each carrying along their respective longitudi-; nal beaded edges lla and 12a a row of interlocking fastener elements E secured in place by sewing stitches S in the well ,; .
known manner. The type of fastener elements E is optional in the practice of the in~ention; for example, it may be of a ` :; -continuous plastic filament in the form of a helical spring as presently shown, or in a meandering form, or of a metal in a -discre~e formation. The oppcsite rows of fastener elements E
are brought into or out of engagement with each other by a slider 13 as the latter is moved therealong to close or open the fastener 10 in the usual manner. The reference numeral 14 generally designates a preferred form of the bridge top stop ac~ording to the invention.
- As illustrated in greater detail in Fig. 2 the bridge top stop 14 has a substantially horse-shoë shaped body (also referred to as "a generally U-shaped channel membern) which has bifurcations 15a and 15b ex*ending parallel with each other ;~ and which comprises a pair of similar plate members 16 and 17 : _ 4 _ ~:
~' .
)37Z3Z ~:
: interconnected at their inner peripheral edges by a peripheral wall member 18 (also referred to as "a generally U-shaped ` inner peripheral wall member"). The upper and lower plate members 16 and 17 have formed at and along their respective outer peripheral edges inwardly directed flanges 15a and 17a tha ; are spaced apart by a circumferential slit 19. As shown, there ~
~ is formed a substantially cross-sectionally square channel 20 :.
.. which is defined by the plate members 16, 17, the inner peri-pheral wall 18 and flanges 16a, 17a at the outèr peripheral edges of members 16, 17. The channel extends substantially ::~ in a "U"-shaped configuration throughout the entire peripheral . length of the body 15. The channel 20 has a dimen-: I sion calculated to accommodate the beaded edge lla (12a) .-:
.. . ..
of the tape 11, (12) such that its interior space may :, be fully and completely filled by the beaded edge .;~ lla,(12a) when the top stop body 15 is secured together into , positive engagement with the latter as hereafter described.
-. 15 The circumferential slit 19 which communicates with the channel , 20 is initially just large enough to permit a given thickness .
of tape 11,(12) to be threaded therethrough. ~.
!
:., The bridge top stop 14 of the above construction and . configuration is mounted on the upper ends of the stringer ~ :
' 20 tapes 11,12 in the manner depicted in Figs. 3 and 4. The - .
S beaded edges lla and 12a o~ separated stringer tapes 11 and - 12 are threaded through the channel 20 in the respective bifur~
~; cations l5a and 15b of the top stop 14. In which instance, the longitudinal edge portions of the tape web designated at 21 immediately adjacent the beaded edges lla,12a are threaded ~:
through the slit 19. As and after the top stop 14 has thus been mounted in the desired position on the stringer tapes 11,12 - as illustrated in Pig. 3, it is secured together into positi~e ~
~ ':
. .
~03723Z
. engagement with the beaded edges lla,12a in a direction perpen-dicular to the plane of the slide fastener 10 by suitable means . such as for example by the known techniques of supersonic or high frequency heating where the top stop 14 is formed of a .~ S thermoplastic material, or by punching where it is of a metal.
..
The final shape of the top stop 14 thus secured to the stringer tapes 11,12 is shown in Fig. 4 from which it will be seen that .: the beaded edges lla,12a are completely embedded and firmly . anchored in the channel 20 in a manner to fill up the interior spacing of the latter, while the longitudinal edge portions 21 ... .
- of the respective stringer tapes 11,12 are firmly caught in -~. the slit 19 between the flanges l~a,17a w~ereby the top stop ~ 14 can be stabilized in position against increased external . .stresses.
Those skilled in the art will readily appreciate different modifications deferring from the preferred - embodiment disclosed herein before. Thus, for instance, one can re~dily conceive an arrangement wherein only one of the plate members 16, 17 is provided with O the flange, the other plate member being generally flat. Such modification,-together with other modifications, may differ from the preferred embodiment as disclosed, however, they would still fall within the scope of the present invention as defined in the accompanying claims.
. ' .
. . .
. ~.
-. 11.-. , .`' ..
Claims (2)
1. In a slide fastener including a pair of stringer tapes each carrying a row of interlocking fastener elements on a beaded longitudinal edge thereof and a slider movable along said rows of fastener elements for coupling and uncoupling the same, a thermoplastic bridge top stop comprising a generally U-shaped channel member formed by two similar plate members spaced apart in a generally parallel relationship and inter-connected by a generally U-shaped inner peripheral wall member at inner peripheral edges of said plate members, said plate members defining with said peripheral wall member a channel generally U-shaped in plan, said channel being completely filled up with fastener element-free portions of said beaded edges in compressed condition, said portions of said beaded edges of the respective stringer tapes and generally the entire length of the inner peripheral wall member being fused together, at least one of said plate members being provided at the outer peripheral edge thereof with a flange protruding to the other plate member to define with same a circumferential slit,said flange being positioned to hold the longitudinal edge portion of the respective stringer tapes that lie immediately adjacent said beaded edges.
2. In a slide fastener including a pair of stringer tapes each carrying a row of interlocking fastener elements on a beaded longitudinal edge thereof and a slider movable along said rows of fastener elements for coupling and uncoupling the same, a thermoplastic bridge top stop comprising a generally U-shaped channel member formed by two similar plate members spaced apart in a generally parallel relationship and inter-connected by a generally U-shaped inner peripheral wall member at inner peripheral edges of said plate members, said plate members defining with said peripheral wall member a channel generally U-shaped in plan, said channel being completely filled up with fastener element-free portions of said beaded edges in compressed condition, said portions of said beaded edges of the respective stringer tapes and generally the entire length of the inner peripheral wall member being fused together, said plate members being each provided at the outer peripheral edge thereof with a flange protruding to the other plate member to define with the flange of the other plate member a circumferential slit, said flanges being positioned to hold the longitudinal edge portions of the respective stringer tapes that lie immediately adjacent said beaded edges.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1973117151U JPS5555603Y2 (en) | 1973-10-08 | 1973-10-08 | |
| JP48117151A JPS5044073A (en) | 1973-10-08 | 1973-10-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1037232A true CA1037232A (en) | 1978-08-29 |
Family
ID=26455320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA209,536A Expired CA1037232A (en) | 1973-10-08 | 1974-09-19 | Slide fastener end stop |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5044073A (en) |
| BE (1) | BE820279A (en) |
| CA (1) | CA1037232A (en) |
| DE (1) | DE2447705A1 (en) |
| FR (1) | FR2246236B1 (en) |
| GB (1) | GB1452234A (en) |
| NL (1) | NL7413167A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10030185B4 (en) * | 2000-06-20 | 2005-06-09 | Dynat Verschlußtechnik GmbH | Fluid-tight zipper |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5147590B2 (en) * | 1972-09-14 | 1976-12-15 |
-
1973
- 1973-10-18 JP JP48117151A patent/JPS5044073A/ja active Pending
-
1974
- 1974-09-17 GB GB4051974A patent/GB1452234A/en not_active Expired
- 1974-09-19 CA CA209,536A patent/CA1037232A/en not_active Expired
- 1974-09-24 BE BE148839A patent/BE820279A/en not_active IP Right Cessation
- 1974-10-07 FR FR7433672A patent/FR2246236B1/fr not_active Expired
- 1974-10-07 DE DE19742447705 patent/DE2447705A1/en active Pending
- 1974-10-07 NL NL7413167A patent/NL7413167A/en active Search and Examination
Also Published As
| Publication number | Publication date |
|---|---|
| BE820279A (en) | 1975-01-16 |
| NL7413167A (en) | 1975-04-10 |
| GB1452234A (en) | 1976-10-13 |
| FR2246236B1 (en) | 1978-11-24 |
| DE2447705A1 (en) | 1975-04-10 |
| FR2246236A1 (en) | 1975-05-02 |
| AU7346074A (en) | 1976-03-25 |
| JPS5044073A (en) | 1975-04-21 |
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