GB2177967A - Method of manufacturing slide fastener stringers with parti-colored rows of injection-molded coupling elements - Google Patents
Method of manufacturing slide fastener stringers with parti-colored rows of injection-molded coupling elements Download PDFInfo
- Publication number
- GB2177967A GB2177967A GB08615051A GB8615051A GB2177967A GB 2177967 A GB2177967 A GB 2177967A GB 08615051 A GB08615051 A GB 08615051A GB 8615051 A GB8615051 A GB 8615051A GB 2177967 A GB2177967 A GB 2177967A
- Authority
- GB
- United Kingdom
- Prior art keywords
- injection
- coupling elements
- rows
- molded
- length
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D5/00—Producing elements of slide fasteners; Combined making and attaching of elements of slide fasteners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14549—Coating rod-like, wire-like or belt-like articles
- B29C45/14565—Coating rod-like, wire-like or belt-like articles at spaced locations, e.g. coaxial-cable wires
- B29C45/14573—Coating the edge of the article, e.g. for slide-fasteners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D5/00—Producing elements of slide fasteners; Combined making and attaching of elements of slide fasteners
- B29D5/02—Producing elements of slide fasteners; Combined making and attaching of elements of slide fasteners the fasteners having separate interlocking members
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Slide Fasteners (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
A method of manufacturing a slide fastener stringer (S) having a parti-colored row of injection-molded coupling elements (E1-E3) comprises a succession of injection-molding steps each of which is achieved exclusively for forming injection-molded coupling elements of one color, the molding steps being carried out on one and the same mold assembly (M) of an injection-molding machine having a single injection cylinder (S). <IMAGE>
Description
SPECIFICATION
Method of manufacturing slide fastener stringers with parti-colored rows of injection molded coupling elements
The present invention relates to a method of manufacturing aslidefastenerstringerhaving a particolored row of injection-molded coupling elements secured to one longitudinal edge of a stringertape.
Slide fasteners having parti-colored rows of coupling elements are particularly suitable for use with an article, such as garment, having multicolored design patterns as an attractive color coordination or harmony is provided between the coupling elements and the article. Such slide fasteners are usually manufactured by an injection-molding machine of the type which comprises a plurality of juxtaposed injection cylinders respectively held in fluid communication with successive rows of mold cavities in a mold assembly for injecting melt synthetic resin materials of different colors into the corresponding rows of mold cavities at once while the mold assembly is fully closed with a stringertape held herein, thereby forming a parti-colored row of injection-molded coupling elements secured to the stringertape along one longitudinal edgethereof.
The conventional practice is howeverdisadvantageous in that complicated control is necessary in maintaining various molding factors, such as heating temperature, injection pressure and injection quantity, in a uniform condition overall the injection cylinders. Furthermore, it becomes difficultto maintain the desired molding condition when injectionmolding a parti-colored row of coupling elements in which respective coupling element groups of dif ferentcolorsarenotuniformin length. Another drawback is in that duetothe large number of injection cylinders, the injection-molding machine as a whole becomes large in size and complicated in construction.
According to the present invention, there is provided a method of manufacturing a slide fastener stringerto include a stringertape and a parti-colored row of injection molded coupling elements secured tothestringertapealong a longitudinal edgethereof, said method comprising the steps of::
(a) injection-molding a plurality of longitudinally spaced rows of coupling elements on a stringertape along a longitudinal edgethereof,the rows of injection-molded coupling elements having a first color and being spaced from one another by a plurality of element-free portions;
(b) injection-molding a plurality of longitudinally spaced rows of coupling elements on the stringer tape along the respective element-free portions, the just injection-molded rows of coupling elements having a second color which is different from the first colorofthe previous injection-molded coupling elements; and
(c) repeating the above-mentioned step (b) until the elememnt4ree portions are occupied with the injection-molded coupling elements.
It is believed possible by means ofthe present invention to provide a method which will eliminate and substantially overcome the foregoing drawbacks of the prior method.
It is further believed possible by means of the present invention to provide a method applicable to an
injection-molding machine of the type having a single injection cylinder, for manufacturing a slide fastener stringer having a parti-colored row of coupl
ing elements injection-molded on a stringertape along one longitudinal edgethereof.
The invention will be described by way of example with reference to the accompanying drawings, wherein:
Figures lAthrough 1Care fragmentary plan views of a pair of slide fastener stringers, illustrative of successive molding steps for form ing a pair of partcolored rows of injection-molded coupling elements on thefastenerstringers according tothe present invention;
Figure2is a fragmentary plan view of a slide fastener including the fastener stringers manufactured in accordance with the present invention;
Figure 3 is a fragmentary perspective view of a mold assembly used to manufacturethefastener stringers of Figure 2;
Figures4Athrough 4Careviews similarto Figures 1Ato 1C, but showing a modified molding process applicable to another mold assembly;; Figure 5 is a schematic frag menta ry plan view of a pairofslidefastenerstringers having opposed particolored rows of injection-molded coupling elements oftwo differentcolorgroups; Figure 6 is a viewsimilarto Figure 5, showing particolored rows of injection-molded coupling elements composed of four different color groups;
Figures 7through 9 are schematic fragmentary plan views of various slide fastener stringers each having a parti-colored row of injection-molded coupling elements in which respective colored coupling element groups have different lengths;;
Figure ioisaschematicfragmentaryplanviewof two identical fastener stringers interconnected in a longitudinally displaced relation to one another so as to provide a staggered color pattern on opposed parti-colored rows of coupling elements; and
Figure 11, appearring with Figure 2, is a perspect iveviewofa mold member having a control rod for adjusting the length of a row of coupling elementsto be injection-molded.
Figures 1Athrough iCshow successive molding steps embodying the present invention for manufacturing a pair of slide fastener stringers S, S each including a multicolored or parti-colored row of injection-molded coupling elements secured to a strin gertapeTalong one longitudinal edgethereof.The coupling elements are composed ofthree successive groups El, E2, E3 of different individual colors, each colored coupling element group including a plurality of rows of coupling elements longitudinally spaced at equal intervals. The slide fastener stringers S, S thus manufactured are coupled togetherto form a slidefastenershown in Figure 2.
The slide fastener stringers S, S are manufactured by an injection-molding machine including a mold assembly M such as shown in Figure 3. The mold assembly M includes a pair of upper and lower mold halves or members M2, Ml relatively movableto- ward each other to define therebetween a plurality of rows of mold cavities longitudinally spaced at equal intervals and held in fluid communication with one another. Each of the mold members M 1, M2 has in its mold surface a pair of laterally spaced rows of mold cavities 1, each row being composed of a plurality of mold cavity groups (two being shown in Figure 3) longitudinally spaced from one another by elongate lands 2.Each mold cavity group has a length equal to the length of each row of injection-molded coupling elements E1, E2, E3 of one color. The mold member
M1, M2 also includes a runner 3 disposed between and extending longitudinally along the rows of mold cavities, the runner3 being held in fluid communication with the individual mold cavities 1 through a number of gates (not designated).The upper mold member M2 has a sprue 4through which a colored melted synthetic resin material is forced by a single injection cylinder5 into the mold cavities l.Aplura- lity (three in the illustrated embodiment) of elongate recesses 6 are defined in the mold surface of each mold member Ml, M2 andthey extend paralleltothe runner 3 along the corresponding Iands2forreceiv- ing the previous injection-molded coupling elements. The elongate recesses 6 each have a length which is twice the length ofthe individual mold cavity groups, and hence the length of the individual rows of injection-molded coupling elements. The length of the recesses 6 is an integral multiple of the length of each group of mold cavities 1 and varies as the number of colors used is changed.The mold assembly M further includes a reciprocably movable positioning pin 7 disposed at one end of the lower mold member M1 and projectablefrom the mold surface of the mold member M 1 to position the previous injection-molded coupling elements with respect to the mold cavities 1 before the next injecting operation starts.
Operation ofthe injection-molding machine is as follows. While the mold assembly M is held in the fullyopened position, a pairofparallel spaced stringertapes T, T is introduced between the upper and
lower mold members M2, M1 so that inner longitudinal edges of the stringer tapes T, T overla p the rows of mold cavities 1. Then the mold assembly M is fully closed. With this condition, a melted synthetic
resin material of a desired color is injected by the injection cylinder 5 into the individual cavities 1 through the sprue 4, the runner3 and the gates, thereby forming a plurality (three in the illustrated
embodiment) of longitudinally spaced rows of injection-molded coupling elements El secured to the
inner longitudinal edge of each stringertape T.The injection-molded coupling elements El are cooled for a predetermined period of time.
Upon expiration ofthe predetermined cooling time, the mold assem bly M is fully opened, at the time ofwhichthe positioning pin 7 is projected from the mold surface of the lower mold member Ml and the injection-molded coupling elements El are ejected outofthe mold cavities 1 by means of a plurality
of ejector pins (not shown). Then the stringer tapes T
are fed in a longitudinal direction until a trailing end
of a runner portion 8 ofthe injection-molded coupling elements El engages the positioning pin 7, as shown in Figure 1A.The mold assembly Mis closed again andtheforegoing steps of molding operation are repeated until the injection-molded coupling elements El are formed onthestringertapesTalong the length thereof with a plurality of element-free portions 9 between successive rows of injectionmolded coupling elements El. Thereafter, a plurality of portions 4a (Figure 3), the runner portions8 and the gate portions are removed in a known mannerfrom the injection-molded coupling elements El.
The stringertapes Twith thus injection-molded coupling elements El of the desired color are introduced again into the molded assembly M while the latter isfullyopened. In this instance, the individual rows of injection-molded coupling elements El are received in corresponding ones ofthe elongate recesses 6with a leading end of each coupling element row located next to a trailing mold cavity 1 of each mold cavitygroup. With this condition,the mold assembly M is fully closed and a melted synthetic resin material of a desired color, which is different from the color of the previous injection-molded coupling elements El, is injected by the injection cylinder 5 into the mold cavities 1 through the sprue 4, the runner3 and the gates Thus, three longitudinally spaced rows of injection-molded coupling elements E2 are formed at once on and along the respective element-free portions 9 of each stringertape
Tin an end-to-end relation to adjacent ones ofthe previous injection-molded coupling elements El.
After the injection-molded coupling elements E2 have been formed on all the element-free portions 9 of the respective stringertapesT, as shown in Figure 1 B, sprue portions, runner portions and the gate por- tions are removed from the injection-molded coupling elements E2. In this condition, each stringertape
Tstill has a plurality of element-free portions 9a between successive rows of injection-molded coupling elements El, E2, each element-free portion 9a having a length which is equal to the length of each group of mold cavities 1.
The stringertapes T having the injection-molded coupling elements El, E2 of different colors are introduced into the same mold assembly M in such a mannerthatthe coupling elements El, E2 are received in the respective elongate recesses 6 and the element-free portions9a are held in registrywiththe mold cavities 1.While the mold assembly Mis fully closed, a melt synthetic resin material of a color, which is differentfrom the colors ofthe previous injection-molded coupling elements El, E2, is injected by the cylinder 5 into the mold cavities 1 .Thus, three rows of injection-molded coupling elements E3 are formed respectively between the privous injection
molded coupling elements El and the previous injection-molded coupling elements E2, as shown in
Figure 1 C. In this condition, the element-free port
ions 9, 9a shown in Figures 1A and 1 B are no longer existence as they are fully occupied with the injection-molded coupling elements El, E2, E3. After sprue portions, runner portions and gate portions (neither designated) have been removed, the slide fastener stringers S, S, as shown in Figure 2, are con nected together by coupling the rows of injectionmolded coupling elements El, E2, E3 ofthreedif- ferentcolors by means of a slider SL.
A modified injection molding method shown in
Figures 4A-4C is reduced to practice by a mold assembly M' having a pair of relatively movable mold members M" (only one shown in Figure 11).
Each mold member M" has a pair of rows of mold cavities 10 extending throughoutthe length thereof and a runner 11 extending between the rows of mold cavities 10, the runner 10 and the individual mold cavities 10 are connected together by a number of gates (not designated). The row of mold covities 10 have a length equal to the length of a group of coupling elements to be injection-molded.With the use of the mold assembly M', a melt synthetic resin material of a desired color is injected into the mold cavities 10 to form a row of injection-molded coupling elements
El on each stringertapeTalong one longitudinal edgethereof. Then the stringer tapes T are moved in a longitudinal direction by a distance until a trailing end of a runner portion l2ofthemolded-coupling element E1 engages a positioning member 13 (Figure4A),the distance being twice the length ofthe mold cavities 10. This distance is an integral multiple of the length of the mold cavities 10 and is determined by the equation D=L (N-l ) where D is the dis tance of movement of each stringertape T, L isthe length of the mold cavities 10 and N is the number of colors to be used.The foregoing steps of molding operation are repeated until a plurality of longitudinally spaced rows of injection-molded coupling elements El are formed on each stringertape along one longitudinal edge thereof.
The stringertapes T are introduced again into the mold assembly M' such thatthe mold cavities 10 and one of rows of previous injection-molded coupling elements El are located end to end. Then a melted synthetic resin material of a different color is injected into the mold cavities 10 to form a row of injectionmolded coupling elements E2 extending con tiguouslytothe row of coupling elements E1 .The stringer tapes T a re adva nced bytheabove- mentioneddistanceandthenextfollowing row of injection-molded coupling elements E2 is formed as shown in Figure 4B.In the same figure, reference numeral 14 designates a positioning memberengageable with the previous injection-molded coupl ing elements E 1 for positioning the longitudinal tape edges with respect to the mold cavities 10. The justmentioned molding operation is repeated for the formation of rows of injection-molded coupling elements E3 having a color which is different from the colors ofthe coupling elements El, E2. The runner portions 12, sprue portions (notshown) and gate portions (notdesignated) may be removed either after formation of each rows of injection-molded coupling elements El, E2, E3, or upon formation of parti-colored row of coupling elements El, E2, E3 of different colors.
Figures 5 through 9 show various slide fastener stringers made in accordance with the present invention. The stringers shown in Figure 5 have two opposed rows of injection-molded coupling elements
E4, E5, each coupling element row being composed of a plurality of longitudinally spaced groups of coupling elements E4ofone color and a plurality of groups of coupling elements ES ofanothercolordis- posed between adjacent groups of the coupling elements E4. All the coupling element groups have the same length. Stringers shown in Figure 6 have a pair of parti-colored rows of injection-molded coupling elements composed of four different color groups
E6-E9, all coupling element groups E6-E9 having the same length.
Slide fastener stringers shown in Figures 7 to 9 each have a parti-colored row of injection-molded coupling elements in which respective colored coup ling elementgroupsEl0-El7 have different lengths.
The length of individual coupling element groups can be changed by displacing a control rod 15 (Figure 11) in an axial direction along the runner 11, thereby varying the effective length of the rows of mold cavities 10.
Parti-colored rows of injection-molded coupling elements shown in Figure 10 provides an attractive zigzag or staggered color pattern which is obtainable when two stringers are connected together in a long itudinallydisplaced relation to one another.
In the foregoing embodiments, a single ingectionmolding machine with a single mold assembly is used for reducing the inventive method into practice.
The present invention is also applicable to a series of injection-molding machines each provided exclusivelyforforming injection-molded coupling elements of one color, the injection-molding machines have the same mold assemblies each having one injection cylinder.
The method according to the present invention has various advantages. Since a slide fastener stringer having a parti-colored row of injection-molded coupling elements can be manufactured by an injection molding machine having a single injection cylinder, various molding factors, such as heating temperature, injection pressure and the injection quantity can be maintained in a uniform condition with atmost ease. The injection-molding machineperse is compact and simple in structure and hence is easy to maintain. Since the molding operation is repeated for each color, it is possible to form a row of coupling elements of a substantially unlimited number of colors. The length of individual groups of injectionmolded coupling elements is variable without the necessity of reconstruction of the mold assembly.
Claims (7)
1. A method of manufacturing a slide fastener stringerto include a stringertape and a parti-colored row of injection molded coupling elements secured tothestringertapealong a longitudinal edgethereof, said method comprising the steps of:
(a) injection-molding a plurality of longitudinally spaced rows of coupling elements on a stringertape along a longitudinal edge thereof, the rows of injection-molded coupling elements having a first color and being spaced from one another by a plurality of element-free portions;
(b) injection-molding a plurality of longitudinally spaced rows of coupling elements on the stringer tape along the respective element-free portions, the just injectionmolded rows of coupling elements having a second colorwhich is different from the first color of the previous injection-molded coupling elements; and
(c) repeating the above-mentioned step (b) until the element-free portions are occupied with the injectionmolded coupling elements.
2. A method according to claim 1 ,the first- mentioned injection-molding step (a) comprising (all) introducing the stringer tape between a pair of relatively movable mold members defining a series of mold cavities;
(a-2) injecting a melted synthetic resin material of one color into the mold cavities while the mold members are fully closed;
(a-3) moving the stringertape in a longitudinal dir ectionwhilethemold members are fully opened until atrailing end ofthe just injection-molded rowof coupling elements is spaced from a leading one of the mold cavities by a distance which is an integral multiple ofthe length ofthe just injection-molded rowofcoupling elements; and
(a-3) repeating said injection and moving (a-1 ) and (a-2).
3. A method according to claim 2, the secondmentioned injection-molding step (b) comprising (b-1; introducing the stringertape again between the mold members such that the mold cavities and one of the rows of previous injection-molded coupling elements are located end to end;
(b-2) injecting a colored melted synthetic resin material ofanothercolor into the mold cavities while the mold members arefullyclosed; (b-3) moving the stringer tape in a longitudinal direction by said distance while the mold members are fully opened; and
(b-4) repeating said injection and moving (b-2) and (b-3).
4. A method according to claim l,theelement- free portions having a length which is an integral multipleofthelength of each rowofinjectionmolded coupling elements of the first color.
5. A method according to claim 1, the rows of in- jection-molded coupling elements of one color having a length which is differentfrom the length of the rows of injection-molded coupling elements of another color.
6. A method according to claim 1, all the rows of injection-molded coupling elements of different individual colors having the same length, the elementfree portions having a length which is an integral multiple of the length ofthe rows of injection-molded coupling elements, the integral multiple being determined bysubstracting one from the number of colors ofthe injection-molded coupling elements.
7. A method according to claim 1, each row of injection-molded coupling elements being variable in length.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60136472A JPS61293822A (en) | 1985-06-22 | 1985-06-22 | Manufacture of multi-color zip fastener |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8615051D0 GB8615051D0 (en) | 1986-07-23 |
| GB2177967A true GB2177967A (en) | 1987-02-04 |
| GB2177967B GB2177967B (en) | 1989-07-12 |
Family
ID=15175917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8615051A Expired GB2177967B (en) | 1985-06-22 | 1986-06-20 | Method of manufacturing slide fastener stringers with parti-colored rows of injection-molded coupling elements |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS61293822A (en) |
| KR (1) | KR900001907B1 (en) |
| GB (1) | GB2177967B (en) |
| HK (1) | HK27292A (en) |
| MY (1) | MY100943A (en) |
| PH (1) | PH27311A (en) |
| SG (1) | SG31692G (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0960720A2 (en) * | 1998-05-07 | 1999-12-01 | Young Chul Kang | Color slide fastener and method and apparatus for fabricating the same |
| ITBO20120055A1 (en) * | 2012-02-07 | 2013-08-08 | Chimera S P A | METHOD TO REALIZE A LAMPO CLOSURE WITH METALLIC DENTINS HAVING FINISHES AND / OR DIFFERENT COLORS AND ARE AVAILABLE IN PRE-ORIENTED SEQUENCE |
| US9434113B2 (en) | 2012-05-29 | 2016-09-06 | Ykk Corporation | Slide fastener manufacturing method |
| CN106714610A (en) * | 2014-10-27 | 2017-05-24 | Ykk株式会社 | Slide fastener and method for manufacturing the slide fastener |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09216486A (en) * | 1996-02-14 | 1997-08-19 | Hiromi Asada | Manufacture of transparent wrapping case for office use |
| KR100289892B1 (en) * | 1998-09-08 | 2001-05-15 | 강영철 | Apparatus for manufacturing color slide fastener |
| KR100289891B1 (en) * | 1998-09-08 | 2001-05-15 | 강영철 | Apparatus for preparing color slide fastener and method therefor |
| KR100291326B1 (en) * | 1998-11-25 | 2001-06-01 | 강영철 | Color slider and preparation method and apparatus thereof |
| KR100428608B1 (en) * | 2001-04-20 | 2004-04-29 | 영 철 강 | Apparatus manufacturing multi color slide fastener |
| KR100432324B1 (en) * | 2001-09-07 | 2004-05-28 | 영 철 강 | Manufacturing method for multi color slide fastener and thereof apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB512715A (en) * | 1937-03-18 | 1939-09-25 | Louis Huntington Morin | Method of forming castings such as sliding-clasp fasteners, on a stringer, by the injection-moulding of thermoplastic material |
| GB893840A (en) * | 1958-03-12 | 1962-04-11 | Plasco Ltd | Method of and apparatus for moulding multiple plastic scoops on to stringer tapes of separable fasteners |
| GB979334A (en) * | 1961-01-31 | 1965-01-01 | Tadao Yoshida | Apparatus for producing slide fasteners having interlocking elements of synthetic resin |
| GB1551535A (en) * | 1976-03-02 | 1979-08-30 | Hamas Ag | Method and apparatus for producing sliding clasp fasteners |
-
1985
- 1985-06-22 JP JP60136472A patent/JPS61293822A/en active Granted
-
1986
- 1986-06-20 PH PH33916A patent/PH27311A/en unknown
- 1986-06-20 GB GB8615051A patent/GB2177967B/en not_active Expired
- 1986-06-21 KR KR1019860004983A patent/KR900001907B1/en not_active IP Right Cessation
-
1987
- 1987-07-24 MY MYPI87001095A patent/MY100943A/en unknown
-
1992
- 1992-03-14 SG SG316/92A patent/SG31692G/en unknown
- 1992-04-16 HK HK272/92A patent/HK27292A/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB512715A (en) * | 1937-03-18 | 1939-09-25 | Louis Huntington Morin | Method of forming castings such as sliding-clasp fasteners, on a stringer, by the injection-moulding of thermoplastic material |
| GB893840A (en) * | 1958-03-12 | 1962-04-11 | Plasco Ltd | Method of and apparatus for moulding multiple plastic scoops on to stringer tapes of separable fasteners |
| GB979334A (en) * | 1961-01-31 | 1965-01-01 | Tadao Yoshida | Apparatus for producing slide fasteners having interlocking elements of synthetic resin |
| GB1551535A (en) * | 1976-03-02 | 1979-08-30 | Hamas Ag | Method and apparatus for producing sliding clasp fasteners |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0960720A2 (en) * | 1998-05-07 | 1999-12-01 | Young Chul Kang | Color slide fastener and method and apparatus for fabricating the same |
| EP0960720A3 (en) * | 1998-05-07 | 2001-12-05 | Young Chul Kang | Color slide fastener and method and apparatus for fabricating the same |
| US6422851B2 (en) * | 1998-05-07 | 2002-07-23 | Young-Chul Kang | Apparatus for fabricating color slide fasteners |
| ITBO20120055A1 (en) * | 2012-02-07 | 2013-08-08 | Chimera S P A | METHOD TO REALIZE A LAMPO CLOSURE WITH METALLIC DENTINS HAVING FINISHES AND / OR DIFFERENT COLORS AND ARE AVAILABLE IN PRE-ORIENTED SEQUENCE |
| US9434113B2 (en) | 2012-05-29 | 2016-09-06 | Ykk Corporation | Slide fastener manufacturing method |
| CN106714610A (en) * | 2014-10-27 | 2017-05-24 | Ykk株式会社 | Slide fastener and method for manufacturing the slide fastener |
| CN106714610B (en) * | 2014-10-27 | 2020-02-28 | Ykk株式会社 | Slide fastener and method for manufacturing slide fastener |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8615051D0 (en) | 1986-07-23 |
| KR870000163A (en) | 1987-02-16 |
| JPS61293822A (en) | 1986-12-24 |
| KR900001907B1 (en) | 1990-03-26 |
| GB2177967B (en) | 1989-07-12 |
| PH27311A (en) | 1993-05-28 |
| SG31692G (en) | 1992-05-15 |
| JPH0236376B2 (en) | 1990-08-16 |
| MY100943A (en) | 1991-05-31 |
| HK27292A (en) | 1992-04-24 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19950620 |