Slider includes a slider body with an insertion hole extending toward a lower wing from an insertion entrance on a side of an upper wing so as to form a hollow in the interconnection pillar; a pull tab mounted onto the slider body so as to be pivotable over the upper wing between a collapsed posture and an upright posture; a spring member mounted onto the slider body so as to sandwich a portion of the pull tab; and a cover attached to the slider body so as to cover at least the spring member. The spring member includes a front leg inserted into the insertion hole via the insertion entrance. The cover is configured to include a limiting portion that limits, at a position over the insertion hole, upward displacement of the front leg of the spring member.

Slider includes a slider body with an insertion hole extending toward a lower wing from an insertion entrance on a side of an upper wing so as to form a hollow in the interconnection pillar; a pull tab mounted onto the slider body so as to be pivotable over the upper wing between a collapsed posture and an upright posture; a spring member mounted onto the slider body so as to sandwich a portion of the pull tab; and a cover attached to the slider body so as to cover at least the spring member. The spring member includes a front leg inserted into the insertion hole via the insertion entrance. The cover is configured to include a limiting portion that limits, at a position over the insertion hole, upward displacement of the front leg of the spring member.

[Problem] To provide a slide fastener chain and a slide fastener, which have a small curvature radius and which have flexibility enabling the slide fastener chain and the slide fastener to be smoothly bent. [Solution] A slide fastener chain (1) comprises: a pair of fastener tapes (2); and elements (3) affixed to the facing edges (21) of the fastener tapes (2) at a predetermined pitch. The slide fastener chain (1) is characterized in that: the elements (3) each have bases (31a, 32a) affixed to a fastener tape (2) and each have heads (31c, 32c) protruding from the bases (31a, 32a) and engaging with facing elements (3); and the thickness (t) and pitch (p) of the elements (3) satisfy the following expressions (1) and (2).

[Problem] To provide a slide fastener chain and a slide fastener, which have a small curvature radius and which have flexibility enabling the slide fastener chain and the slide fastener to be smoothly bent. [Solution] A slide fastener chain (1) comprises: a pair of fastener tapes (2); and elements (3) affixed to the facing edges (21) of the fastener tapes (2) at a predetermined pitch. The slide fastener chain (1) is characterized in that: the elements (3) each have bases (31a, 32a) affixed to a fastener tape (2) and each have heads (31c, 32c) protruding from the bases (31a, 32a) and engaging with facing elements (3); and the thickness (t) and pitch (p) of the elements (3) satisfy the following expressions (1) and (2).

An invisible zipper head assembly structure includes a sliding member and a pulling member. The sliding member has a base portion, a first lateral wall portion, a second lateral wall portion, a seat portion, an elastic component, and a retaining body. The retaining body has a positioning portion passing through a positioning through hole of the seat portion. The pulling member is movably mated with the retaining body. The thickness of the first lateral wall portion is smaller than the thickness of the second lateral wall portion. The first symmetric center line of the base portion passes through a geometric center point of the positioning through hole, and the second symmetric center line of the seat portion is horizontally moved relative to the first symmetric center line by horizontal offset and along a horizontal direction from the second lateral wall portion to the first lateral wall portion.

An invisible zipper head assembly structure includes a sliding member and a pulling member. The sliding member has a base portion, a first lateral wall portion, a second lateral wall portion, a seat portion, an elastic component, and a retaining body. The retaining body has a positioning portion passing through a positioning through hole of the seat portion. The pulling member is movably mated with the retaining body. The thickness of the first lateral wall portion is smaller than the thickness of the second lateral wall portion. The first symmetric center line of the base portion passes through a geometric center point of the positioning through hole, and the second symmetric center line of the seat portion is horizontally moved relative to the first symmetric center line by horizontal offset and along a horizontal direction from the second lateral wall portion to the first lateral wall portion.

A slide fastener assembly includes a first stringer tape and a second stringer tape. The first stringer tape includes a row of interlocking zipper teeth attached along an inner edge thereof. The second stringer tape includes a row of interlocking zipper teeth attached along an inner edge thereof and a hollow tube arranged along a selvedge edge thereof. The slide fastener assembly further includes a separate cord positioned within the hollow tube, thereby forming a beaded cord at the selvedge edge of the second stringer tape.

A garment or accessory includes a fabric portion including an opening and a zipper arrangement to selectively close the opening. The zipper arrangement includes a first toothed portion fixedly coupled to the fabric portion along the at least one opening, and a second toothed portion fixedly coupled to the fabric portion along the opening. The zipper arrangement also includes two sliders. Each slider is slidably received on each of the first toothed portion and the second toothed portion so as to selectively engage the first toothed portion with the second toothed portion and disengage the first toothed portion from the second toothed portion. The zipper arrangement also includes at least one stop formed by the first toothed portion and the second toothed portion such that the first toothed portion is non-releasably engaged with the second toothed portion at the at least one stop.

Slide fasteners configured such that opposing elements engage with one another in a non-planar relationship. The elements may engage one another, for example but not limited to, at an angle between approximately 60 degrees and approximately 179 degrees. In some embodiments, each element includes a head and at least one shoulder with angle keeping surfaces and engagement surfaces that abut corresponding surfaces when engaging with a corresponding element to interlock the heads and shoulders of opposing elements. Slide fasteners of the invention may be well suited for use with curved surfaces, corners, ridge lines, edges, or the like of an article.

Slide fasteners configured such that opposing elements engage with one another in a non-planar relationship. The elements may engage one another, for example but not limited to, at an angle between approximately 60 degrees and approximately 179 degrees. In some embodiments, each element includes a head and at least one shoulder with angle keeping surfaces and engagement surfaces that abut corresponding surfaces when engaging with a corresponding element to interlock the heads and shoulders of opposing elements. Slide fasteners of the invention may be well suited for use with curved surfaces, corners, ridge lines, edges, or the like of an article.