CA1218832A - Separable bottom-end-stop assembly for separable slide fastener - Google Patents
Separable bottom-end-stop assembly for separable slide fastenerInfo
- Publication number
- CA1218832A CA1218832A CA000446418A CA446418A CA1218832A CA 1218832 A CA1218832 A CA 1218832A CA 000446418 A CA000446418 A CA 000446418A CA 446418 A CA446418 A CA 446418A CA 1218832 A CA1218832 A CA 1218832A
- Authority
- CA
- Canada
- Prior art keywords
- pin member
- socket member
- stop assembly
- bore
- pin
- 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
- A44B19/42—Making by processes not fully provided for in one other class, e.g. B21D53/50, B21F45/18, B22D17/16, B29D5/00
- A44B19/44—Securing metal interlocking members to ready-made stringer tapes
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/24—Details
- A44B19/38—Means at the end of stringer by which the slider can be freed from one stringer, e.g. stringers can be completely separated from each other
Landscapes
- Slide Fasteners (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A separable bottom-end-stop assembly of thermo-plastic synthetic resin, for a separable slide fastener, comprises a pair of first and second separate pin members, and a socket member for being secured to the first pin member, the socket member having a pair of first and second bores receptive of the first and second pin members, respectively The first pin member has on its opposite faces a pair of recesses, and the socket member has a pair of opposed projections extending into the first bore. In assembling, the projections of the socket member's are received in the respective recesses of the first pin member when the latter is inserted into the socket member's first bore. Because of this projection-and-recess locking, the first pin member can be kept exactly in position relative to the socket member while these two members are joined together by fusing.
A separable bottom-end-stop assembly of thermo-plastic synthetic resin, for a separable slide fastener, comprises a pair of first and second separate pin members, and a socket member for being secured to the first pin member, the socket member having a pair of first and second bores receptive of the first and second pin members, respectively The first pin member has on its opposite faces a pair of recesses, and the socket member has a pair of opposed projections extending into the first bore. In assembling, the projections of the socket member's are received in the respective recesses of the first pin member when the latter is inserted into the socket member's first bore. Because of this projection-and-recess locking, the first pin member can be kept exactly in position relative to the socket member while these two members are joined together by fusing.
Description
383;~
BACKGROUND OF THE INANITION
Field of the Invention:
The present invention relates to a separable bottom-end-stop assembly for a separable slide fastener.
Prior Art:
There are known various separable slide fasteners in which a separable bottom-end-stop assembly of thermoplastic synthetic resin is mounted on adjacent bottom ends of opposed fastener stringers. The separable bottom-end-stop assembly generally comprises a pair of pin members secured to the inner tape margins at their respective bottom end portions, and a socket member secured to one of the pin members. In some of the known bottom-end-stop assemblies, the socket member is attached to one of the pin members by snap action, and in the others, the socket member is fused with one of the pin members by using an ultrasonic horn, for example.
however, in the former case, adequately firm attachment of the socket member cannot be achieved; yet, increasing the amount of "snap-action" strength causes uneasy insertion of the pin member into a bore of the socket member. The one pin member thus tends to be inclined relative to the socket member to assume an improper posture. Consequently, accurate and reliable assembling of such prior bottom-end-stop components cannot be carried out by a fully-automated assembling machine and must be done by a well-experienced person who operates :1218832 various separate tools or devices, which is laborious and time-consuming.
In the latter case, although the one pin member can be inserted into the socket members bore easily, but it is difficult to place the one pin member exactly in position relative to the socket member. Therefore, this prior bottom-end-stop assembly also cannot be assembled by a fully-automated machine.
Sommelier OF THE I INVENTION
It is therefore an object of the invention to provide a separable bottom-end-stop assembly in which the socket member can be attached to one of the pin members easily and accurately with adequate firmness.
Another object of the invention is to provide a separable bottom-end-stop assembly which can be assembled by a fully-automated machine.
Still another object of the invention is to provide a separable bottom-end-stop assembly in which one of the pin members can be inserted into the socket member's bore easily and reliably without lateral displacement.
According to the present invention, a separable bottom-end-stop assembly of thermoplastic synthetic resin, for a separable slide fastener, comprises a pair of first and second separate pin members, and a socket member for being secured to the first pin member, the socket member having a pair of first and second bores receptive of the first and second pin members, respectively. The first pin 12~ 332 member has on its opposite faces a pair of recesses, and the socket member has a pair of opposed projections extending into the first bore. In assembling, the projections of the socket member are received in the respective recesses of the first pin member when the latter is inserted into the socket member's first bore. Because of this projection-and-recess locking, the first pin member can be kept exactly in position relative to the socket member while these two members are joined together by fusing.
Many other advantages, features and additional objects of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying drawings in which preferred embodiments incorporating the principles of the present invention are shown by way of illustrative example.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a fragmentary plan view of a separable slide fastener having a separable bottom-end-stop assembly embodying the present invention;
FIG. 2 is a transverse cross-sectional view taken along line II-II of FIG. l;
FOG. 3 is a longitudinal cross-sectional view taken along line ~II-III of FIG. l;
FIG. 4 is an exploded perspective view of the bottom-end-stop assembly of FIG. 1, with one of a pair of pin members omitted;
FIG. 5 is a transverse cross-sectional view taken Lo 332 along line V-V of FIG. 4;
FIG. 6 is a side elevation Al view of a socket member of the bottom-end-stop assembly of FIG. l;
FIG. 7 is a cross-sectional view illustrating the manner in which the socket member is secured to one of the pin members by fusing;
FIGS. PA, 8B and 8C are fragmentary cross-sectional views of the socket member illustrating the manner in which the socket member is deformed while the pin member is forced into a bore of the socket member;
FIG. 9 (on the sheet of FIG. 6) is a cross-sectional view similar to FIG . 2, showing a modified form of the socket member;
FIG. 10 is a view similar to that of FIG. 9 and showing a further modified form of the socket member;
FIG. 11 is a transverse cross-sectional view showing a modification of the bottom-end-stop assembly;
FIG. 12 is an exploded perspective view of a modified bottom-end-stop assembly, with one of a pair of pin members omitted;
FIG. 13 is a cross-sectional view taken along line XIII-XIII of FIG. 12;
FIG. 14 is a cross-sectional view taken along line XIV-XIV of FIG. 13;
FIG. 15 is a cross-sectional view illustrating the manner in which the socket member is secured to one of the pin members by fusing; and . FIG. 16 is a cross-sectional view similar to FIG.
15, showing a modified form of the socket member.
~2i8~32 DETAILED DESCRIPTION
FIG. 1 shows a separable slide fastener 1 comprising a pair of fastener stringers each including a stringer tape
BACKGROUND OF THE INANITION
Field of the Invention:
The present invention relates to a separable bottom-end-stop assembly for a separable slide fastener.
Prior Art:
There are known various separable slide fasteners in which a separable bottom-end-stop assembly of thermoplastic synthetic resin is mounted on adjacent bottom ends of opposed fastener stringers. The separable bottom-end-stop assembly generally comprises a pair of pin members secured to the inner tape margins at their respective bottom end portions, and a socket member secured to one of the pin members. In some of the known bottom-end-stop assemblies, the socket member is attached to one of the pin members by snap action, and in the others, the socket member is fused with one of the pin members by using an ultrasonic horn, for example.
however, in the former case, adequately firm attachment of the socket member cannot be achieved; yet, increasing the amount of "snap-action" strength causes uneasy insertion of the pin member into a bore of the socket member. The one pin member thus tends to be inclined relative to the socket member to assume an improper posture. Consequently, accurate and reliable assembling of such prior bottom-end-stop components cannot be carried out by a fully-automated assembling machine and must be done by a well-experienced person who operates :1218832 various separate tools or devices, which is laborious and time-consuming.
In the latter case, although the one pin member can be inserted into the socket members bore easily, but it is difficult to place the one pin member exactly in position relative to the socket member. Therefore, this prior bottom-end-stop assembly also cannot be assembled by a fully-automated machine.
Sommelier OF THE I INVENTION
It is therefore an object of the invention to provide a separable bottom-end-stop assembly in which the socket member can be attached to one of the pin members easily and accurately with adequate firmness.
Another object of the invention is to provide a separable bottom-end-stop assembly which can be assembled by a fully-automated machine.
Still another object of the invention is to provide a separable bottom-end-stop assembly in which one of the pin members can be inserted into the socket member's bore easily and reliably without lateral displacement.
According to the present invention, a separable bottom-end-stop assembly of thermoplastic synthetic resin, for a separable slide fastener, comprises a pair of first and second separate pin members, and a socket member for being secured to the first pin member, the socket member having a pair of first and second bores receptive of the first and second pin members, respectively. The first pin 12~ 332 member has on its opposite faces a pair of recesses, and the socket member has a pair of opposed projections extending into the first bore. In assembling, the projections of the socket member are received in the respective recesses of the first pin member when the latter is inserted into the socket member's first bore. Because of this projection-and-recess locking, the first pin member can be kept exactly in position relative to the socket member while these two members are joined together by fusing.
Many other advantages, features and additional objects of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying drawings in which preferred embodiments incorporating the principles of the present invention are shown by way of illustrative example.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a fragmentary plan view of a separable slide fastener having a separable bottom-end-stop assembly embodying the present invention;
FIG. 2 is a transverse cross-sectional view taken along line II-II of FIG. l;
FOG. 3 is a longitudinal cross-sectional view taken along line ~II-III of FIG. l;
FIG. 4 is an exploded perspective view of the bottom-end-stop assembly of FIG. 1, with one of a pair of pin members omitted;
FIG. 5 is a transverse cross-sectional view taken Lo 332 along line V-V of FIG. 4;
FIG. 6 is a side elevation Al view of a socket member of the bottom-end-stop assembly of FIG. l;
FIG. 7 is a cross-sectional view illustrating the manner in which the socket member is secured to one of the pin members by fusing;
FIGS. PA, 8B and 8C are fragmentary cross-sectional views of the socket member illustrating the manner in which the socket member is deformed while the pin member is forced into a bore of the socket member;
FIG. 9 (on the sheet of FIG. 6) is a cross-sectional view similar to FIG . 2, showing a modified form of the socket member;
FIG. 10 is a view similar to that of FIG. 9 and showing a further modified form of the socket member;
FIG. 11 is a transverse cross-sectional view showing a modification of the bottom-end-stop assembly;
FIG. 12 is an exploded perspective view of a modified bottom-end-stop assembly, with one of a pair of pin members omitted;
FIG. 13 is a cross-sectional view taken along line XIII-XIII of FIG. 12;
FIG. 14 is a cross-sectional view taken along line XIV-XIV of FIG. 13;
FIG. 15 is a cross-sectional view illustrating the manner in which the socket member is secured to one of the pin members by fusing; and . FIG. 16 is a cross-sectional view similar to FIG.
15, showing a modified form of the socket member.
~2i8~32 DETAILED DESCRIPTION
FIG. 1 shows a separable slide fastener 1 comprising a pair of fastener stringers each including a stringer tape
2, 3 carrying on and along its inner longitudinal margin pa, pa a row of coupling elements 7 in the form of separate scoops made of thermoplastic synthetic resin. A separable bottom-end-stop assembly 100 is mounted on adjacent bottom ends of the stringers at the respective bottom end portions of the confronting inner tape-margins pa, pa. The bottom end portion is devoid of several coupling elements 7, the number of which is not pertinent here. A slider (not shown) is threaded on the opposed coupling element rows 7, 7 for movement thrilling to close and open the slide fastener 1.
As shown in FIGS. 1-4, the separable bottom-end-stop assembly 100 includes a first separate pin member 5 of thermoplastic synthetic resin mounted on the bottom end portion of one of the inner tape-margins pa by injection-molding, a second separate pin member 6 of thermoplastic synthetic resin mounted on the bottom end portion of the other inner tape-margin pa by injection-molding, and a socket member 4 of thermoplastic synthetic resin secured to the first pin member 5 by fusing in a manner described below.
As shown in FIG. 4, the socket member 4 has a pair of flanged upper and lower wings 10, 11 joined by a partition wall 14 extending centrally of the wings 10, 11 ~218~332 to define a first and a second longitudinal bore 15, 16 for receiving a portion of the first pin member 5 and a portion of the second pin member 6, respectively. The socket member 4 has a pair of slits 17, 17, each communicating with a respective one of the first and second bore 15, 16, for receiving the respective stringer tapes 2, 3, as shown in FIG. 2.
The partition wall 14 has a central bulge 19 swelling into the first bore 15 for resiliently urging or pressing the first pin member 5 against the flanges 13, 13 of the upper and lower wings 10, 11 when the first pin member 5 is inserted into the first bore 15. In an alternative form shown in FIG. 9, the partition wall 14 has in the central bulge 19 a slot 20 extending from a top end of the partition wall 14 and terminating short of a bottom end of the partition wall 14. In an another alternative form shown in FIG. 10, the central bulge 19 of the partition wall 14 has a thickness smaller than the other portions of partition wall 14.
Each of the wings 10, 11 has in its inner face a groove 28 extending along the base of the partition wall 14 and opening into the first bore lo, facilitating the deforming of the partition wall 14 when the first pin member 5 is forced into the first bore 15, as described below in connection with FIGS. PA, 8B and 8C.
The socket member 4 also has at its top end a pair of opposed projections 18, 18 extending from respective ~211383Z
inner faces of the upper and lower wings 10, 11 into the first bore 15, for a purpose described below.
The first pin member 5 includes an upper portion 23 and a lower portion 24 having a thickness slightly smaller than not only the thickness of the upper portion 23 but also the distance between the upper and lower wings 10, 11. When the socket member 4 is secured to the first pin member 5, the lower portion 24 of the first pin member 5 is received in the first bore 15. The first pin member 5 also has in opposite faces a pair of recesses 25, 25 for receiving the respective projections 18, 18 of the upper and lower wings 10, 11 when the socket member 4 is secured to the first pin member 5, as shown in FIGS. 1, 3 and 7. Each of the recesses 25 is disposed across the border between the upper and lower portions 23, 24.
The lower portion 24 of the first pin member 5 has on its opposite faces a plurality of ridges aye twigs. 4 and 5). The ridges aye are melted and used with the inner faces of the upper and lower wings 10, 11 when the socket member 4 and the first pin member 5 are joined together by applying heat and pressure in a manner described below in connection with FIG. 7.
The second pin member 6 twig. 1) has a recess 27 for receiving a projection 26 of the first pin member 5 when the first and second pin members 5, 6 are placed exactly in position for correct inter engaging of the opposed coupling element rows 7, 7 of the two stringers.
To attach the socket member 4 to the first pin ~8~33~
member 5, the first pin member 5 offing 4 is inserted into the first bore 15 of the socket member 4 (FIGS. 4 and 6) from the top end thereof. At that time the socket member 4, which has in its free form a thickness if (FIG. PA), is expanded or deformed so as to have an increased thickness to (FIG. 8B). Then the socket member 4 recovers as the projections 18, 18 of the upper and lower wings 10, 11 are received in the recesses 15, 15, respectively, of the first pin member 5.
Finally, the upper and lower wings 10, 11 are compressed between an ultrasonic horn 30 and a coating anvil 31, as shown in FIG. 7 causing the central bulge 19 to resiliently urge or press the first pin member 5 again the flanges 13, 13 of the upper and lower wings 10, 11. As a result, the socket member 4 is integrally joined with the first pin member 5 by fusing at 32l 33 (FIGS. 2 and 3), at which time the ridges aye of the first pin member 5 are melted and fused with the inner faces of the upper and lower wings 10, 11.
The resultant socket member 4 has a thickness 13 (FIG. 8C) slightly smaller than the thickness if With this arrangement, the socket member 4 can be attached to the first pin member 5 easily and accurately with adequate firmness, partly because the first pin member 5 is resiliently pressed by the central bulge 19 of the partition wall 14 against the flanges 13, 13 of the upper and lower wings 10, 11, and partly because the projections 18, 18 of the wings 10, 11 are received in the respective recesses 25, 25 of the first pin member 5.
In a modification shown in FIG. 11, the first pin member 5 has on its opposite faces a pair of projections 13', 18', and each of the upon and lower wings 10, 11 of the socket member 4 has an opening or recess 25' commune-acting with the first bore 15 for receiving a respective one of the projections 18'. The first pin member 5 also has a longitudinal groove pa receptive of a portion of the partitions wall's central bulge 19.
FIG. 12 illustrates another modification in which each of the upper and lower wings 10, 11 has on its inner face a plurality of parallel longitudinal guide ridges 35 (FIGS. 12-15) facing the first bore 15 for being slid ably engage able with a respective one of opposite faces of the first pin member 5 while the latter is inserted into the first bore 15. The lower portion 24 of the first pin member 5 is flat at opposite faces and has a thickness substantially equal to the distance between the upper and lower wings 10, 11. As shown in FIGS.
14 and 15, each of the guide ridges 35 has a height decreasing progressively toward a bottom end of the socket member 4 for facilitating the inserting of the firs-t pin member into the first bore 15. The maximum height of the guide ridges 35 is slightly smaller than the height of the projections 18.
The first pin member 5 also has one or more additional ridges ~218~332 36 projecting from a bottom face of each recess 25 and having a height slightly smaller than the depth of the recess 25. The socket member 4 is integrally joined with the first pin member 5 when the upper and lower wings lo if are compressed between the ultrasonic horn 30 and the coating anvil 31, as shown in FIG. 15, at which time the ridges 35 of the wings lo if are melted and fused with the opposite faces of the first pin member 5. At the same time, the ridges 36 of the first pin member 5 also are melted and fused with the respective projections 18, 18 of the wings 10, 11.
Alternatively, each of the guide ridges 35 may be composed of a plurality of spaced segments aye, as shown in FIG. 16.
Although various minor modifications may be suggested by those versed in the art, it should be under-stood that we wish to embody within the scope of the patent warranted heron, all such embodiments as reasonably and properly come within the scope of our contribution to the art.
As shown in FIGS. 1-4, the separable bottom-end-stop assembly 100 includes a first separate pin member 5 of thermoplastic synthetic resin mounted on the bottom end portion of one of the inner tape-margins pa by injection-molding, a second separate pin member 6 of thermoplastic synthetic resin mounted on the bottom end portion of the other inner tape-margin pa by injection-molding, and a socket member 4 of thermoplastic synthetic resin secured to the first pin member 5 by fusing in a manner described below.
As shown in FIG. 4, the socket member 4 has a pair of flanged upper and lower wings 10, 11 joined by a partition wall 14 extending centrally of the wings 10, 11 ~218~332 to define a first and a second longitudinal bore 15, 16 for receiving a portion of the first pin member 5 and a portion of the second pin member 6, respectively. The socket member 4 has a pair of slits 17, 17, each communicating with a respective one of the first and second bore 15, 16, for receiving the respective stringer tapes 2, 3, as shown in FIG. 2.
The partition wall 14 has a central bulge 19 swelling into the first bore 15 for resiliently urging or pressing the first pin member 5 against the flanges 13, 13 of the upper and lower wings 10, 11 when the first pin member 5 is inserted into the first bore 15. In an alternative form shown in FIG. 9, the partition wall 14 has in the central bulge 19 a slot 20 extending from a top end of the partition wall 14 and terminating short of a bottom end of the partition wall 14. In an another alternative form shown in FIG. 10, the central bulge 19 of the partition wall 14 has a thickness smaller than the other portions of partition wall 14.
Each of the wings 10, 11 has in its inner face a groove 28 extending along the base of the partition wall 14 and opening into the first bore lo, facilitating the deforming of the partition wall 14 when the first pin member 5 is forced into the first bore 15, as described below in connection with FIGS. PA, 8B and 8C.
The socket member 4 also has at its top end a pair of opposed projections 18, 18 extending from respective ~211383Z
inner faces of the upper and lower wings 10, 11 into the first bore 15, for a purpose described below.
The first pin member 5 includes an upper portion 23 and a lower portion 24 having a thickness slightly smaller than not only the thickness of the upper portion 23 but also the distance between the upper and lower wings 10, 11. When the socket member 4 is secured to the first pin member 5, the lower portion 24 of the first pin member 5 is received in the first bore 15. The first pin member 5 also has in opposite faces a pair of recesses 25, 25 for receiving the respective projections 18, 18 of the upper and lower wings 10, 11 when the socket member 4 is secured to the first pin member 5, as shown in FIGS. 1, 3 and 7. Each of the recesses 25 is disposed across the border between the upper and lower portions 23, 24.
The lower portion 24 of the first pin member 5 has on its opposite faces a plurality of ridges aye twigs. 4 and 5). The ridges aye are melted and used with the inner faces of the upper and lower wings 10, 11 when the socket member 4 and the first pin member 5 are joined together by applying heat and pressure in a manner described below in connection with FIG. 7.
The second pin member 6 twig. 1) has a recess 27 for receiving a projection 26 of the first pin member 5 when the first and second pin members 5, 6 are placed exactly in position for correct inter engaging of the opposed coupling element rows 7, 7 of the two stringers.
To attach the socket member 4 to the first pin ~8~33~
member 5, the first pin member 5 offing 4 is inserted into the first bore 15 of the socket member 4 (FIGS. 4 and 6) from the top end thereof. At that time the socket member 4, which has in its free form a thickness if (FIG. PA), is expanded or deformed so as to have an increased thickness to (FIG. 8B). Then the socket member 4 recovers as the projections 18, 18 of the upper and lower wings 10, 11 are received in the recesses 15, 15, respectively, of the first pin member 5.
Finally, the upper and lower wings 10, 11 are compressed between an ultrasonic horn 30 and a coating anvil 31, as shown in FIG. 7 causing the central bulge 19 to resiliently urge or press the first pin member 5 again the flanges 13, 13 of the upper and lower wings 10, 11. As a result, the socket member 4 is integrally joined with the first pin member 5 by fusing at 32l 33 (FIGS. 2 and 3), at which time the ridges aye of the first pin member 5 are melted and fused with the inner faces of the upper and lower wings 10, 11.
The resultant socket member 4 has a thickness 13 (FIG. 8C) slightly smaller than the thickness if With this arrangement, the socket member 4 can be attached to the first pin member 5 easily and accurately with adequate firmness, partly because the first pin member 5 is resiliently pressed by the central bulge 19 of the partition wall 14 against the flanges 13, 13 of the upper and lower wings 10, 11, and partly because the projections 18, 18 of the wings 10, 11 are received in the respective recesses 25, 25 of the first pin member 5.
In a modification shown in FIG. 11, the first pin member 5 has on its opposite faces a pair of projections 13', 18', and each of the upon and lower wings 10, 11 of the socket member 4 has an opening or recess 25' commune-acting with the first bore 15 for receiving a respective one of the projections 18'. The first pin member 5 also has a longitudinal groove pa receptive of a portion of the partitions wall's central bulge 19.
FIG. 12 illustrates another modification in which each of the upper and lower wings 10, 11 has on its inner face a plurality of parallel longitudinal guide ridges 35 (FIGS. 12-15) facing the first bore 15 for being slid ably engage able with a respective one of opposite faces of the first pin member 5 while the latter is inserted into the first bore 15. The lower portion 24 of the first pin member 5 is flat at opposite faces and has a thickness substantially equal to the distance between the upper and lower wings 10, 11. As shown in FIGS.
14 and 15, each of the guide ridges 35 has a height decreasing progressively toward a bottom end of the socket member 4 for facilitating the inserting of the firs-t pin member into the first bore 15. The maximum height of the guide ridges 35 is slightly smaller than the height of the projections 18.
The first pin member 5 also has one or more additional ridges ~218~332 36 projecting from a bottom face of each recess 25 and having a height slightly smaller than the depth of the recess 25. The socket member 4 is integrally joined with the first pin member 5 when the upper and lower wings lo if are compressed between the ultrasonic horn 30 and the coating anvil 31, as shown in FIG. 15, at which time the ridges 35 of the wings lo if are melted and fused with the opposite faces of the first pin member 5. At the same time, the ridges 36 of the first pin member 5 also are melted and fused with the respective projections 18, 18 of the wings 10, 11.
Alternatively, each of the guide ridges 35 may be composed of a plurality of spaced segments aye, as shown in FIG. 16.
Although various minor modifications may be suggested by those versed in the art, it should be under-stood that we wish to embody within the scope of the patent warranted heron, all such embodiments as reasonably and properly come within the scope of our contribution to the art.
Claims (10)
1. A separable bottom-end-stop assembly for a separable slide fastener including a pair of fastener stringers, each including a stringer tape carrying on its inner longitudinal margin a row of coupling elements, the inner tape-margin having a bottom end portion devoid of coupling elements, said assembly comprising:
(a) a first pin member of thermoplastic synthetic resin adapted to be secured to the bottom end portion of the inner tape-margin of one stringer;
(b) a second pin member of thermoplastic synthetic resin adapted to be severed to the bottom end portion of the inner tape-margin of the other stringer;
(c) a socket member of thermoplastic synthetic resin secured to said first pin member and having a pair of flanged wings joined by a partition wall to define between said wings a first and second bore for receiving a portion of said first pin member and a portion of said second pin member, respectively, said partition wall having a central bulge swelling into said first bore for resiliently pressing said first pin member, when the latter is inserted into said first bore, against said wings' flanges that partly define said first bore; and (d) one of said first pin member and said socket member having a pair of recesses, the other of said first pin member and said socket member having a pair of projections each adapted to be received in a respective one of said recesses when said socket member is secured to said first pin member.
(a) a first pin member of thermoplastic synthetic resin adapted to be secured to the bottom end portion of the inner tape-margin of one stringer;
(b) a second pin member of thermoplastic synthetic resin adapted to be severed to the bottom end portion of the inner tape-margin of the other stringer;
(c) a socket member of thermoplastic synthetic resin secured to said first pin member and having a pair of flanged wings joined by a partition wall to define between said wings a first and second bore for receiving a portion of said first pin member and a portion of said second pin member, respectively, said partition wall having a central bulge swelling into said first bore for resiliently pressing said first pin member, when the latter is inserted into said first bore, against said wings' flanges that partly define said first bore; and (d) one of said first pin member and said socket member having a pair of recesses, the other of said first pin member and said socket member having a pair of projections each adapted to be received in a respective one of said recesses when said socket member is secured to said first pin member.
2. A separable bottom-end-stop assembly according to claim 1, said pair of recesses being disposed in opposite faces of said first pin member, each of said projections being disposed adjacent to a top end of said socket member and extending inwardly from a respective one of said wings.
3. A separable bottom-end-stop assembly according to claim 1, said pair of projections extending from opposite faces of said first pin member, each of said recesses being disposed in a respective one of said wings and opening to said first bore.
4. A separable bottom-end-stop assembly according to claim 1, said first pin member having a longitudinal groove for receiving a portion of said partition wall's central bulge when said socket member is secured to said first pin member.
5. A separable bottom-end-stop assembly according to claim 2, each of said wings having on its inner face a plurality of parallel longitudinal guide ridges facing said first bore for being slid ably engage able with a respective one of the opposite faces of said first pin member while the latter is inserted into said first bore, said guide ridges being adapted to be fused with said first pin member by melting when said socket member is secured to said first pin member by applying heat and pressure.
6. A separable bottom-end-stop assembly according to claim 5, each of said guide ridges having a height decreasing progressively toward a bottom end of said socket member.
7. A separable bottom-end-stop assembly according to claim 6, each of said guide ridges including a plurality of spaced segments.
8. A separable bottom-end-stop according to claim 5, said first pin member having at least one additional ridge projecting from a bottom face of each said recess, said additional ridge in each said recess being adapted to be melted and fused with a respective one of said projections of said socket member when said socket member is secured to said first pin member by applying heat and pressure.
9. A separable bottom-end-stop assembly according to claim 6, the maximum height of said guide ridges being slightly smaller than the height of said projections.
10. A separable bottom-end-stop assembly according to claim 8, said additional ridge having a height slightly smaller than the depth of the recess.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58-13834 | 1983-02-02 | ||
| JP1983013834U JPS59120906U (en) | 1983-02-02 | 1983-02-02 | Slide fastener releasable fitting |
| JP58-120982 | 1983-08-03 | ||
| JP1983120982U JPS6029509U (en) | 1983-08-03 | 1983-08-03 | Slide fastener releasable fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1218832A true CA1218832A (en) | 1987-03-10 |
Family
ID=26349685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000446418A Expired CA1218832A (en) | 1983-02-02 | 1984-01-31 | Separable bottom-end-stop assembly for separable slide fastener |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0116880B1 (en) |
| KR (1) | KR850002852Y1 (en) |
| AU (1) | AU544769B2 (en) |
| BR (1) | BR8400461A (en) |
| CA (1) | CA1218832A (en) |
| DE (1) | DE3460928D1 (en) |
| GB (1) | GB2136497B (en) |
| HK (1) | HK72888A (en) |
| SG (1) | SG91587G (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0189006U (en) * | 1987-08-12 | 1989-06-12 | ||
| JP3285453B2 (en) * | 1994-09-30 | 2002-05-27 | ワイケイケイ株式会社 | Synthetic resin separable bottom stop for slide fastener |
| GB2327709A (en) * | 1997-07-25 | 1999-02-03 | Ykk Europ Ltd | Snap fitted bottom stop for zip fastener |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2474908A (en) * | 1943-07-30 | 1949-07-05 | Davis Marinsky | End stop for separable fasteners and method of forming the same |
| DE2010626A1 (en) * | 1970-03-06 | 1971-09-23 | Opti-Holding Ag, Glarus (Schweiz) | Zipper |
| FR2082871A5 (en) * | 1970-03-31 | 1971-12-10 | Fflb | |
| AR207083A1 (en) * | 1976-01-01 | 1976-09-09 | Weitzner J | IMPROVEMENTS IN TERMINALS FOR ZIPPER CLOSURES |
| CH626241A5 (en) * | 1978-03-17 | 1981-11-13 | Alfred Ammer | Separable plastic zip |
-
1984
- 1984-01-31 GB GB08402526A patent/GB2136497B/en not_active Expired
- 1984-01-31 KR KR2019840000803U patent/KR850002852Y1/en not_active IP Right Cessation
- 1984-01-31 CA CA000446418A patent/CA1218832A/en not_active Expired
- 1984-01-31 BR BR8400461A patent/BR8400461A/en not_active IP Right Cessation
- 1984-02-02 EP EP84101072A patent/EP0116880B1/en not_active Expired
- 1984-02-02 AU AU24011/84A patent/AU544769B2/en not_active Expired
- 1984-02-02 DE DE8484101072T patent/DE3460928D1/en not_active Expired
-
1987
- 1987-10-14 SG SG915/87A patent/SG91587G/en unknown
-
1988
- 1988-09-15 HK HK728/88A patent/HK72888A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| HK72888A (en) | 1988-09-23 |
| BR8400461A (en) | 1984-09-11 |
| KR840006080U (en) | 1984-11-30 |
| AU2401184A (en) | 1984-08-09 |
| DE3460928D1 (en) | 1986-11-20 |
| KR850002852Y1 (en) | 1985-12-04 |
| GB2136497B (en) | 1986-02-19 |
| GB2136497A (en) | 1984-09-19 |
| EP0116880A1 (en) | 1984-08-29 |
| SG91587G (en) | 1988-05-06 |
| EP0116880B1 (en) | 1986-10-15 |
| GB8402526D0 (en) | 1984-03-07 |
| AU544769B2 (en) | 1985-06-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |