A half-round zipper is provided, including chain teeth, top stops and teeth stringers. Each of the chain teeth has a tooth root provided with a left tooth and a right tooth curved with respect to each other, and has a tooth top provided with an engaging boss and an engaging groove which are arranged respectively on both sides of the tooth top and configured to be engagable with each other, and has an arc-shaped longitudinal cross-section with the center angle of a right angle. Two of the chain teeth are engaged with each other to form a half-round shape. Each of the top stops includes an upper end portion with an arc cross-section and a lower end portion with a horizontally or obliquely flat bottom surface, and is engaged to the inner side of the respective one of the teeth stringers by means of a first holding groove.

A half-round zipper is provided, including chain teeth, top stops and teeth stringers. Each of the chain teeth has a tooth root provided with a left tooth and a right tooth curved with respect to each other, and has a tooth top provided with an engaging boss and an engaging groove which are arranged respectively on both sides of the tooth top and configured to be engagable with each other, and has an arc-shaped longitudinal cross-section with the center angle of a right angle. Two of the chain teeth are engaged with each other to form a half-round shape. Each of the top stops includes an upper end portion with an arc cross-section and a lower end portion with a horizontally or obliquely flat bottom surface, and is engaged to the inner side of the respective one of the teeth stringers by means of a first holding groove.

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 is configured to be installed together with a tape to form a fastener stringer, and includes: a main body including an upper main body and a lower main body; an installing portion for installing the tape; a head; and a neck connecting the main body and the head, wherein at least one of the upper main body and the lower main body includes a convex portion and a base portion, the convex portion protrudes from the base portion and extends in the left-right direction at an intermediate position in the front-rear direction. An inclined portion inclined downward along the left-right direction is formed on at least one side of the head along the upper-lower direction, and protrusions extending in the front-rear direction are formed on both sides of the convex portion.

A magnetic zipper includes a pair of mating strands each having a plurality of spaced teeth formed on an inner edge thereof with mating notches formed therebetween. Positioned within each of the notches on both strands is a magnet having a given polarity. Attached to each tooth on both strands is a magnet having a polarity opposite that of the given polarity. The size or geometric configuration of the teeth and notches successively vary so that the two strands cannot be inadvertently joined when misaligned. Accordingly, when the teeth on one strand are positioned near or in their designated notches on the other, the zipper strands firmly adhere to close a garment opening. To open the zipper, a garment wearer simply pulls the tenuously-held zipper strands apart.

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.

Open-ended slide fastener assemblies with improved operability. In some examples, the slide fastener assemblies are watertight and/or airtight. The slide fastener assemblies include one or more sliders and box and pin mechanisms integrated with the slide fastener. The pin mechanism need not be inserted into the box at the same time it is inserted into the slider, permitting the slide fastener to be operated even when it is not visible or easily accessible.

Open-ended slide fastener assemblies with improved operability. In some examples, the slide fastener assemblies are watertight and/or airtight. The slide fastener assemblies include one or more sliders and box and pin mechanisms integrated with the slide fastener. The pin mechanism need not be inserted into the box at the same time it is inserted into the slider, permitting the slide fastener to be operated even when it is not visible or easily accessible.

A non-interlocking magnetic zipper is provided which incorporates a first and second magnetic strip that connect together in response to movement of a magnetic slider which receives the second strip. The second strip includes a flexible, magnetic flap that is configured to repel the first strip and disable the magnetic attraction between the first and second strips based on the position of the slider. In operation, as the slider moves proximally along the second strip, the flap moves away from the first strip, thereby removing the repulsive force against the first strip and allowing the first and second strip to connect and close the zipper. Similarly, as the magnetic slider moves distally along the second strip, the flap moves back towards the first strip, thereby renewing the repulsive force against the first strip and allowing the first and second strips to disconnect and open the zipper.

A non-interlocking magnetic zipper is provided which incorporates a first and second magnetic strip that connect together in response to movement of a magnetic slider which receives the second strip. The second strip includes a flexible, magnetic flap that is configured to repel the first strip and disable the magnetic attraction between the first and second strips based on the position of the slider. In operation, as the slider moves proximally along the second strip, the flap moves away from the first strip, thereby removing the repulsive force against the first strip and allowing the first and second strip to connect and close the zipper. Similarly, as the magnetic slider moves distally along the second strip, the flap moves back towards the first strip, thereby renewing the repulsive force against the first strip and allowing the first and second strips to disconnect and open the zipper.