Fastener element of slide fastener has an intermediate portion including bent or curved portion between a terminal portion and a base portion. The intermediate portion has an engaging protrusion and an engaged recess which are respectively protruded and recessed on an axis that matches a movement direction of the slider. In an orthogonal direction orthogonal to the axis, a first distance between the axis and the terminal surface of the terminal portion is less than a second distance between the axis and the base end surface of the base portion.

An element includes a head having an engaging convex portion protruding from one surface thereof and an engaging concave portion formed on the back of the engaging convex portion on the other surface; and a pair of leg portions extending from the head. A protrusion is formed on a side of the engaging concave portion close to the leg portions to protrude inward of the engaging concave portion.

A method for sewing a slide fastener includes forming end edge portion needle drop points in at least two positions, within an overlapped portion in which the work piece is folded, within a range more toward a tip side of an end edge portion of the work piece than half of an overlapped width, and within a range on an inner side of a width of a leg portion of an interlocking element. Sewing is performed with sewing thread passing from a head portion needle drop point to the end edge portion needle drop point of one end portion and sewing thread passing from the end edge portion needle drop point of another end portion to the head portion needle drop point of an adjacent interlocking element each passing either side of the leg portion.

Provided is a slide fastener-attached product in which an element member, is fixed to an element attaching edge portion of a fastener attached member with a sewn portion for fixing. The sewn portion for fixing pierces the element attaching edge portion, and a thread forming the sewn portion for fixing holds a connecting member. A position that the sewn portion for fixing pierces the element attaching edge portion is apart from an element to be inside of the element attaching edge portion. Thereby, weight reduction and improvement in flexibility of the slide fastener-attached product can be achieved.

A zipper with at least one curve includes a first tape and a second tape, and interlocking elements attached to the first tape and the second tape, wherein the first tape and the second tape are curved, and wherein a curve of at least one of the tapes was caused by compaction of that tape.

A zipper with at least one curve includes a first tape and a second tape, and interlocking elements attached to the first tape and the second tape, wherein the first tape and the second tape are curved, and wherein a curve of at least one of the tapes was caused by compaction of that tape.

A dock slider includes a guide column. An upper wing plate and a lower wing plate are connected by the guide column. The guide column is provided on the front end side of the slider. The space formed between the upper wing plate and the lower wing plate forms a sliding groove. An upper guide plate is downwardly and vertically provided from the left edge and the right edge of the upper wing plate, respectively. The upper guide plate is configured to limit the sliding direction of the slider. A lower guide plate is upwardly and vertically provided from the left edge and the right edge of the lower wing plate, respectively. The lower guide plate is configured to limit the sliding direction of the slider and arranged corresponding to the upper guide plate.

An element includes a head having an engaging convex portion protruding from one surface thereof and an engaging concave portion formed on the back of the engaging convex portion on the other surface; and a pair of leg portions extending from the head. A protrusion is formed on a side of the engaging concave portion close to the leg portions to protrude inward of the engaging concave portion.

These slide fastener-attached products each have: a pair of element members in which fastener elements are attached to a fixing member; a fastener attached member provided with a pair of element attaching edge portion; and sliders. The element members are directly fixed to the element attaching edge portions by sewn portion for fixing, the sewn portion for fixing pierce and pass through the element attaching edge portions, and the sewing thread of the sewn portion for fixing hold the fixing member. In addition, the slide fastener-attached products are provided with protective parts which protect at least a part of the element attaching edge portions from contact with the sliders. Thus, lightweight and improved flexibility of the slide fastener-attached products can be achieved, and the durability of the element attaching edge portions can be improved.

A slide fastener-attached product includes a pair of element members and a fastener attached member having a pair of element attaching edge portions to which the element members are attached at positions. A fixing member includes an element holding portion and an extending portion extending further in one direction of a length direction than the element holding portion. The element member is fixed to the element attaching edge portion of the fastener attached member with a sewn portion for fixing of a sewing thread, and the extending portion of the fixing member is fixed to the element attaching edge portion with the sewn portion for fixing. A member attaching portion to which a component part of a separable rear end stop is attached is formed of a part including the extending portion. Thereby, a weight reduction and improvement of flexibility can be attained.