Claims
- 1. A method for forming a row of slide fastener elements, comprising the steps of:
- (a) rolling a wire into a generally Y shape in cross section;
- (b) cutting the rolled wire transversely into slices of element blanks of a predetermined thickness, each slice of the element blanks having a coupling head and a pair of attaching legs;
- (c) forming a protuberance on the coupling head of each of the element blanks;
- (d) mounting the element blanks with the protuberances on the coupling heads successively on a fastener tape at predetermined positions;
- (e) providing the legs of each slide fastener element with a substantially arcuate profile during the rolling step; and
- (f) providing at least cut edges of the legs with smooth beveled surfaces during the mounting step.
- 2. The method of claim 1 wherein the rolling step (a) comprises the step of intermittently supplying the wire at a predetermined pitch.
- 3. The method of claim 1 wherein the mounting step (d) comprises the step of calking the attaching legs of each of the element blanks on front and back sides of the fastener tape.
- 4. The method of claim 1 further comprising the step of beveling the entire outer edges of the element blanks.
- 5. The method of claim 4 further comprising the step of forming each attaching leg to have a smooth continuous arcuate outer surface continuous with a smooth continuous arcuate inner surface.
- 6. The method of claim 1 further comprising the step of forming each attaching leg to have a smooth continuous arcuate outer surface continuous with a smooth continuous arcuate inner surface.
Priority Claims (1)
Number |
Date |
Country |
Kind |
6-199320 |
Aug 1994 |
JPX |
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Parent Case Info
This is a division of application Ser. No. 08/840,936, filed Apr. 25, 1997 now U.S. Pat. No. 5,778,519, which is a division of application Ser. No. 08/518,309, filed Aug. 23, 1995 now U.S. Pat. No. 5,671,510.
US Referenced Citations (5)
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Aug 1950 |
CAX |
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EPX |
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Divisions (2)
|
Number |
Date |
Country |
Parent |
840936 |
Apr 1997 |
|
Parent |
518309 |
Aug 1995 |
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