Method of manufacturing separable slide fastener

• US 4,845,829 A
• Filed: 07/15/1988
• Issued: 07/11/1989
• Est. Priority Date: 08/01/1987
• Status: Expired due to Term

• Current Assignee: YKK Corporation
• Original Assignee: Yoshida Kogyo Kabushiki Kaisha
• Inventors: Sassa, Yusei
• Primary Examiner(s): Echols, P. W.
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US07/219,608
• Time in Patent Office: 361 Days
• Field of Search: 29/409, 29/408, 29/33.2, 29/766
• US Class Current: 29/409
• CPC Class Codes: A44B 19/60 Applying end stops upon stringer tapes
• CPC Class Codes: A44B 19/62 Assembling sliders in position on stringer tapes
• CPC Class Codes: B29C 65/08 using ultrasonic vibrations non-plastics element to plastics elements B29C65/645
• CPC Class Codes: B29C 66/47 Joining single elements to sheets, plates or other substantially flat surfaces B29C66/5326 takes precedence
• CPC Class Codes: B29L 2005/00 Elements of slide fasteners
• CPC Class Codes: Y10T 29/49782 of a slide fastener
• CPC Class Codes: Y10T 29/49783 of slider
• CPC Class Codes: Y10T 29/5101 Slide fastener or slide fastener element
• CPC Class Codes: Y10T 29/53291 Slide fastener

Abstract

An elongate continuous slide fastener chain is fed in alternately opposite longitudinal directions in various steps (a) through (e). First, reinforcing film members are attached to the chain across an element-free space, and then a hole is defined in the chain across the element-free space. Thereafter, an insertable pin, a box pin, and a box are attached to the chain through the hole, and then a slider is mounted on a pair of rows of coupling elements through the element-free space. Finally, top end stops are fixed to beaded edges of the chain, which is then cut off transversely thereacross into a separable slide fastener.

Claims

1. A method of manufacturing a separable slide fastener from an elongate continuous slide fastener chain having a pair of stringer tapes supporting a pair of intermeshing rows of coupling elements on respective longitudinal beaded edges thereof, with longitudinally spaced element-free spaces defined in the rows of coupling elements, said method comprising the steps of:

(a) feeding the slide fastener chain in one longitudinal direction, stopping the chain, and attaching a reinforcing film to the stringer tapes across an element-free space adjacent to leading coupling elements;

(b) after the step (a), feeding the slide fastener chain in an opposite longitudinal direction opposite to said one direction, stopping the chain, and defining a hole in said stringer tapes across said element-free space;

(c) after the step (b), feeding the slide fastener chain in said one direction and attaching an insertable pin, a box pin, and a box to the slide fastener chain through said hole;

(d) after the step (c), feeding the slide fastener chain in said opposite direction and mounting a slider on the rows of coupling elements through said element-free space; and

(e) after the step (d), feeding the slide fastener chain in said one direction, stopping the slide fastener chain, attaching top end stops to the beaded edges adjacent to trailing coupling elements, and cutting off the slide fastener chain transversely along the hole into a separable slide fastener.

2. A method according to claim 1, wherein said steps (a) through (e) maybe carried out independently of each other in separate, discontinuous operations.