KR101740302B1 - Slide fastener and preparation method thereof - Google Patents
Slide fastener and preparation method thereof Download PDFInfo
- Publication number
- KR101740302B1 KR101740302B1 KR1020150118579A KR20150118579A KR101740302B1 KR 101740302 B1 KR101740302 B1 KR 101740302B1 KR 1020150118579 A KR1020150118579 A KR 1020150118579A KR 20150118579 A KR20150118579 A KR 20150118579A KR 101740302 B1 KR101740302 B1 KR 101740302B1
- Authority
- KR
- South Korea
- Prior art keywords
- slide fastener
- inclined surface
- head
- crest
- curved
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/24—Details
-
- 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
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- Slide Fasteners (AREA)
Abstract
The present invention relates to a slide fastener in which an element having a head portion and a pair of opposed leg portions connected to the head portion is intermittently fastened to a tape at a predetermined pitch, the head portion including a protruding protrusion and a protrusion having a shape corresponding to the protrusion The head including a concave pocket, the head having a first inclined surface inclined from the tip toward the crest; A curved portion formed between the first inclined surface and the crest portion; A flat crest extending from the curved portion; And a second inclined surface inclined downwardly from the hill portion toward the leg portion and inserted into the pocket and hooked to the pocket. The slide fastener according to the present invention is manufactured from a deformed wire material not a flat wire material , The surface is smooth, the opening and closing operation of the fastener is smoothly performed, and the advantage of excellent physical properties such as lateral tear strength is provided.
Description
The present invention relates to a slide fastener and a method of manufacturing the same, and more particularly, to a slide fastener in which an element is made of a deformed wire and has a smooth surface and excellent physical properties such as strength and sliding property, and a method of manufacturing the slide fastener.
The conventional slide fastener chain is mainly manufactured by using a flat wire material as shown in Fig. The slide fastener chain progressively advances the flat wire material by a predetermined length, forms an acid and a pocket by a forming punch and a forming die, cuts teeth by a die part made of a piece metal mold and a cutting punch, Has been produced by the method.
In the conventional slide fastener chain manufactured by using the flat wire material, scratches due to the tolerance between the molds are generated in the course of gradually forming the flat wire material in the mold and forming it into a tooth shape. In order to obtain a more beautiful effect on the surface of the teeth of the slide fastener chain as the demand of the consumer increases, the slide fastener chain using the flat wire material is subjected to a polishing treatment to remove scratches or scratches, . If the abrasion treatment is performed a lot, the surface can be made beautiful but the thickness of the legs of the teeth is thinned, which causes a problem that the strength of the slide fastener chain is lowered.
In the slide fastener chain using the flat wire rod, the flat wire rod is cut and formed into the element shape by the cutting die and the punch, so that a fracture occurs due to the tolerance of the die. Since the roughness of the fracture surface is not constant depending on the degree of tolerance between the molds, the surface roughness of the surface must be different depending on the condition of the fracture surface. As a result, a deviation occurs in the thickness of the cord bite of the leg portion, resulting in a variation in strength. Thus, there is a limit in that it is difficult to manufacture a slide fastener having a surface that is smooth even when plating is performed because the surface roughness is uneven.
SUMMARY OF THE INVENTION It is an object of the present invention to overcome the limitations of the prior art described above, and it is an object of the present invention to provide a slide fastener chain which can stably form a slide fastener chain, To provide a slide fastener capable of improving physical properties and quality, and a method of manufacturing the slide fastener.
Another object of the present invention is to provide a slide fastener which is excellent in opening and closing performance and can prevent abrasion or breakage of a mold part to reduce manufacturing cost by drastically reducing consumption cost and a manufacturing method thereof .
According to one aspect of the present invention, there is provided a slide fastener in which an element having a head portion and a pair of opposed leg portions connected to the head portion is intermittently fastened to the tape at a predetermined pitch, And a concave pocket having a shape corresponding to the protruding portion, wherein the head portion has a first inclined surface inclined from the tip portion toward the crest portion; A curved portion formed between the first inclined surface and the crest portion; A flat crest extending from the curved portion; And a second inclined surface inclined downward from the hill portion toward the leg portion and inserted into the pocket and hooked to the pawl.
According to another aspect of the present invention for achieving the above object,
A metal wire having a head portion and a pair of opposed leg portions connected to the head portion is cut to a product thickness of an element for manufacturing a slide fastener and then the head portion of the cut element material is formed, In the production of the slide fastener by intermittently fastening the part at a predetermined pitch to the tape,
Wherein the head forming step includes a protruded protrusion and a concave pocket having a shape corresponding to the protrusion, the head including a first inclined surface inclined from a tip portion toward a crest portion; A curved portion formed between the first inclined surface and the crest portion; A flat crest extending from the curved portion; And a second inclined surface which is inclined downward toward the leg portion from the mountain portion and is inserted and hooked into the pocket.
The elements of the slide fastener of the various embodiments of the present invention are made from deformed wire material, not a flat wire material, and have a beautiful surface. In addition, the slide fastener in which such an element is inserted also has a smooth surface, so that the touch feeling is smooth, and the sliding resistance of the slider is reduced, so that the slide fastener can be opened and closed more smoothly.
According to the present invention, since a larger number of combined chain teeth are stably arranged on the inner straight line portion of the slider, the clearance between the chain and the slider is reduced, so that a smooth opening and closing function can be exhibited. As a result, It is possible to reduce the manufacturing cost by minimizing the consumption of the mold parts because it improves the tensile strength and lowers the mountain height to prevent wear or breakage of the mold parts.
1 is a schematic perspective view of a deformed wire rod for forming an element of a slide fastener according to an embodiment of the present invention.
2 is a schematic perspective view of an element forming a slide fastener according to an embodiment of the present invention.
3 is a front view of an element for forming a slide fastener according to an embodiment of the present invention.
4 is a schematic rear view of an element forming a slide fastener according to an embodiment of the present invention.
5 is a side view of an element forming a slide fastener according to an embodiment of the present invention.
FIG. 6 is a schematic diagram for explaining a distance P between a height h of a peak and a tooth in a slide fastener according to an embodiment of the present invention. FIG.
7 is a partial perspective view showing an attachment state of the element of the present invention to the fastener tape.
8 is a schematic perspective view showing the engagement state of the element.
9 is a schematic perspective view of a flat wire member used in manufacturing an existing slide fastener element.
Various embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In order to clearly illustrate the present invention in the drawings, parts not related to the description are omitted, and like reference numerals are given to similar parts throughout the specification.
2 is a schematic perspective view of an element for forming a slide fastener according to an embodiment of the present invention, and Fig. 3 is a cross-sectional view of the slide fastener shown in Fig. 4 is a rear view of an element for forming a slide fastener according to an embodiment of the present invention. FIG. 4 is a front view of an element forming a slide fastener according to an embodiment of the present invention.
1 to 4, an
4, the elements of the slide fastener of the present invention are formed such that a
Referring to FIG. 4, the slide fastener of the present invention adjusts the height (h) at which the
The slide fastener of the present invention narrows the pitch P between the teeth and lowers the height h of the hill portion so that the
Referring to FIG. 5, the size of the
The
6, in the slide fastener of the present invention, the pitch h between the height of the hill portion and the elements fastened to the tape cord is P-T1 <h (where P is the pitch between the elements of the slide fastener , H is the height of the peak, and T1 is the thickness of the leg). It is preferable that the pitch P between the elements is within 220% to 250% of the leg portion thickness T 1.
Since a larger number of combined chain teeth are stably arranged in the slider inner
Another aspect of the present invention relates to a method of manufacturing a slide fastener using a deformed wire. The slide fastener chain using the deformed wire rod 1 is obtained by cutting the deformed wire rod 1 by a predetermined thickness in the longitudinal direction and forming a
7 and 8, in the method of the present invention, a deformed wire rod having a
5, the ratio of the length of L1: L2: L3 is 21% to 25%: 34% to 38%: 38% to 42% <L3, wherein the inclination angles? 1 and? 2 of the first inclined surface and the second inclined surface satisfy the conditions of 25 °? 1 <30 ° and 30 °? 2 <35 °, r < 5 (where r is the radius (mm) of the curved surface constituting the curved portion).
In the slide fastener manufactured by the method of the present invention, the pitch P between the teeth is narrowed, the height h of the hill is lowered, the portion contacting the track in the shape of the hill is formed into a curved portion, The position of the mountain portion is adjusted upward to reduce the head portion, so that the opening and closing can be smoothly performed when the chain is opened and closed.
It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims. You can understand that you can do it. Therefore, the true scope of protection of the present invention should be defined in the appended claims and their equivalents.
1: Metal wire rod
100: element 111:
110: head part 112: first inclined surface
113: Curved portion 114:
115: second inclined surface 118: pocket
116: Inner rectilinear section 119: Track
120: leg
Claims (7)
5, the ratio of the length L1: L2: L3 is 21% to 25%: 34% to 38%: 38% to 42%, and L1 <L2 <L3, The inclination angles? 1 and? 2 of the inclined surface and the second inclined surface satisfy the conditions of 25 ° <θ 1 <30 ° and 30 ° <θ 2 <35 °,
Wherein a pitch P between the height h of the hill portion and the elements fastened to the tape cord is P-T1 < h where P is the pitch between the elements of the slide fastener, h is the height of the mountain portion, Of the thickness of the slide fastener.
Wherein the head forming step includes a protruded protrusion and a concave pocket having a shape corresponding to the protrusion, the head including a first inclined surface inclined from a tip portion toward a crest portion; A curved portion formed between the first inclined surface and the crest portion; A flat crest extending from the curved portion; And a second inclined surface which is inclined downward from the hill portion toward the leg portion and in which the hill portion is inserted and engaged with the pocket,
5, the ratio of the length L1: L2: L3 is 21% to 25%: 34% to 38%: 38% to 42% L3 and the inclination angles? 1 and? 2 of the first inclined surface and the second inclined surface satisfy the condition of 25 ° <θ 1 <30 ° and 30 ° <θ 2 <35 °, r < 5 (where r is the radius (mm) of the curved surface constituting the curved portion)
Wherein a pitch P between the height h of the hill portion and the elements fastened to the tape cord is P-T1 < h where P is the pitch between the elements of the slide fastener, h is the height of the mountain portion, Is a thickness of a portion corresponding to the thickness of the slide fastener.
Priority Applications (1)
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KR1020150118579A KR101740302B1 (en) | 2015-08-24 | 2015-08-24 | Slide fastener and preparation method thereof |
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KR1020150118579A KR101740302B1 (en) | 2015-08-24 | 2015-08-24 | Slide fastener and preparation method thereof |
Publications (2)
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KR20170023446A KR20170023446A (en) | 2017-03-06 |
KR101740302B1 true KR101740302B1 (en) | 2017-06-15 |
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KR1020150118579A KR101740302B1 (en) | 2015-08-24 | 2015-08-24 | Slide fastener and preparation method thereof |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109527722B (en) * | 2018-11-21 | 2021-08-24 | 浙江伟星实业发展股份有限公司 | Zipper tooth and zipper with same |
MX2022004222A (en) * | 2019-10-10 | 2022-05-03 | Ykk Corp | Metallic element and slide fastener. |
CN112273800B (en) * | 2020-10-13 | 2022-03-18 | 福建浔兴拉链科技股份有限公司 | Zipper tooth, zipper, article using zipper and zipper tooth forming die |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003299509A (en) * | 2002-04-11 | 2003-10-21 | Ykk Corp | Metal wire for forming tooth of slide fastener and tooth for slide fastener formed of the same |
KR101209400B1 (en) * | 2008-04-14 | 2012-12-06 | 와이케이케이 가부시끼가이샤 | Metallic one-side teeth and two-way slide fastener |
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2015
- 2015-08-24 KR KR1020150118579A patent/KR101740302B1/en active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003299509A (en) * | 2002-04-11 | 2003-10-21 | Ykk Corp | Metal wire for forming tooth of slide fastener and tooth for slide fastener formed of the same |
KR101209400B1 (en) * | 2008-04-14 | 2012-12-06 | 와이케이케이 가부시끼가이샤 | Metallic one-side teeth and two-way slide fastener |
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KR20170023446A (en) | 2017-03-06 |
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