Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SLIDE FASTENER
Document Type and Number:
WIPO Patent Application WO/2021/171518
Kind Code:
A1
Abstract:
Provided is a slide fastener capable of reducing the possibility of fabric being caught by a slider itself, without expending the slider more than is necessary. A slide fastener (1) comprises: a pair of left and right fastener stringers (2) including left and right fastener tapes (3) and element strings (4) on opposite edges of the left and right fastener tapes (3); and a slider (10, 110) that causes the element strings (4) to engage with each other by moving forward and causes the element strings (4) to disengage from each other by moving backward. The slider (10, 110) includes an upper blade (20, 120), a lower blade (30, 30A, 130), a guide column (11, 111), a Y-shaped element path (40), left and right shoulder openings (41), and a back opening (42). The upper blade (20, 120) and the lower blade (30, 130) each have left and right forward edges (21a, 31a, 131a) that form opening edges of the left and right shoulder openings (41). At least one of the upper blade (20, 120) and the lower blade (30, 30A, 130) has one or more recesses (31B, 31C, 131B) recessed backward from the left and right forward edges (21a, 31a, 131a). The recesses (31B, 31C, 131B) recessed backward from the left and right forward edges (21a, 31a, 131a) have a depth (D, Dx) that is greater than 0 and that is less than or equal to the distance to an end point (P, P1) of R of the guide column (11, 111).

Inventors:
INUKAI TAKAYUKI (JP)
YABUYA TORU (JP)
Application Number:
PCT/JP2020/008163
Publication Date:
September 02, 2021
Filing Date:
February 27, 2020
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
YKK CORP (JP)
International Classes:
A44B19/26
Attorney, Agent or Firm:
AXIS PATENT INTERNATIONAL (JP)
Download PDF:



 
Previous Patent: HOT-STAMPED ARTICLE

Next Patent: HOT-STAMPED ARTICLE