| 摘要 |
<p>(Object) To provide a novel slide fastener having a multilayered structure made up of plural fastener units with one fastener unit overlaid on another fastener unit in succession, by creating a fastener element having a specific shape based on a novel idea. (Solution) The slide fastener comprises elements, which are arranged in a line along each of oppositely-positioned edges of opening/closing ends of fastener tapes, and a slider, wherein each of the elements includes a horizontal functional section having a meshing portion on one side and a fastener-tape fixed portion on the other side in the horizontal direction, an upper vertical functional section having an engagement piece that is formed by extending the meshing portion upwards perpendicularly to the horizontal functional section, and a lower vertical functional section having an engagement holding piece that is formed by extending the fastener-tape fixed portion downwards perpendicularly to the horizontal functional section, the slide fastener includes a plurality of fastener units in each of which the elements are arranged to oppositely face each other and the meshing portions are meshed with each other by sliding the slider between the oppositely-positioned elements, whereby the engagement pieces of the oppositely-positioned elements in pair form an engagement portion and the engagement holding pieces of the oppositely-positioned elements in pair form an engagement holding portion, and the plurality of fastener units are constituted in a multilayered structure by engaging the engagement holding portions of a second fastener unit with the engagement portions of a first fastener unit such that the engagement holding portions of a new fastener unit are engaged with the engagement portions of a preceding fastener unit in succession.</p> |
