The prevent invention provides a zipper head assembly structure and a slidable element thereof. The sliding element has a base portion, two lateral wall portions, and a seat portion. The base portion has a front side and a back side. The two lateral wall portions are respectively upwardly extended from two opposite lateral sides of the base portion, and the two lateral wall portions correspond to each other and are connected to the front side of the base portion. The seat portion is disposed on the base portion and connected to the back side of the base portion. The seat portion has a main body disposed on the base portion and connected to the back side of the base portion, two strip convex ribs respectively disposed on two opposite sides of the main body, and two concave spaces respectively connected to the two strip convex ribs.

The prevent invention provides a zipper head assembly structure and a slidable element thereof. The sliding element has a base portion, two lateral wall portions, and a seat portion. The base portion has a front side and a back side. The two lateral wall portions are respectively upwardly extended from two opposite lateral sides of the base portion, and the two lateral wall portions correspond to each other and are connected to the front side of the base portion. The seat portion is disposed on the base portion and connected to the back side of the base portion. The seat portion has a main body disposed on the base portion and connected to the back side of the base portion, two strip convex ribs respectively disposed on two opposite sides of the main body, and two concave spaces respectively connected to the two strip convex ribs.

A locking slider assembly includes a slider including a follower; and a rail engaged to the follower, so that the follower can move along the rail when the assembly is in a first state and the follower cannot move along the rail when the assembly is in a second state.

An apparatus and method for operably mounting a slider onto a recloseable plastic zipper closure includes a rotor having at least one slider-engaging shoulder; an insertion wedge adjacent to the rotor and sized to slidably accommodate the slider for mounting onto a zipper closure; and a zipper guide member adjacent to the rotor and adjacent to the insertion wedge for guiding and holding a zipper closure while the slider is mounted thereon. The insertion wedge will have a leading edge and a trailing edge and increase in thickness from the leading edge to the trailing edge. The apparatus can be vertically oriented or horizontally oriented.

An apparatus and method for operably mounting a slider onto a recloseable plastic zipper closure includes a rotor having at least one slider-engaging shoulder; an insertion wedge adjacent to the rotor and sized to slidably accommodate the slider for mounting onto a zipper closure; and a zipper guide member adjacent to the rotor and adjacent to the insertion wedge for guiding and holding a zipper closure while the slider is mounted thereon. The insertion wedge will have a leading edge and a trailing edge and increase in thickness from the leading edge to the trailing edge. The apparatus can be vertically oriented or horizontally oriented.

A method of preparing a cut length of slide fastener chain for operational use includes: providing a system that includes first and second machines; providing a cut length of slide fastener chain; introducing a notch to one end of the cut length of slide fastener chain, using the first machine; orienting a slider body onto a positioning device, using the second machine, so that the slider body is in a fixed position; inserting the notched end of the cut length of slide fastener chain into a mouth of the slider body; and pulling the cut length of slide fastener chain through the slider body by a distance, thereby mounting the slider body to the cut length of slide fastener chain.

A method of preparing a cut length of slide fastener chain for operational use includes: providing a system that includes first and second machines; providing a cut length of slide fastener chain; introducing a notch to one end of the cut length of slide fastener chain, using the first machine; orienting a slider body onto a positioning device, using the second machine, so that the slider body is in a fixed position; inserting the notched end of the cut length of slide fastener chain into a mouth of the slider body; and pulling the cut length of slide fastener chain through the slider body by a distance, thereby mounting the slider body to the cut length of slide fastener chain.

An apparatus and method for operably mounting a slider onto a recloseable plastic zipper closure includes a rotor having at least one slider-engaging shoulder; an insertion wedge adjacent to the rotor and sized to slidably accommodate the slider for mounting onto a zipper closure; and a zipper guide member adjacent to the rotor and adjacent to the insertion wedge for guiding and holding a zipper closure while the slider is mounted thereon. The insertion wedge will have a leading edge and a trailing edge and increase in thickness from the leading edge to the trailing edge. The apparatus can be vertically oriented or horizontally oriented.

An apparatus and method for operably mounting a slider onto a recloseable plastic zipper closure includes a rotor having at least one slider-engaging shoulder; an insertion wedge adjacent to the rotor and sized to slidably accommodate the slider for mounting onto a zipper closure; and a zipper guide member adjacent to the rotor and adjacent to the insertion wedge for guiding and holding a zipper closure while the slider is mounted thereon. The insertion wedge will have a leading edge and a trailing edge and increase in thickness from the leading edge to the trailing edge. The apparatus can be vertically oriented or horizontally oriented.

A garment having an opening and closing portion for putting on and taking off the garment on a front body, wherein a tab is placed at any position on each of a left and a right outside the opening and closing portion, wherein an upper end portion of the tab is attached to an upper end of the opening and closing portion in conformity to the opening and closing portion, and a distance from the upper end of the opening and closing portion to a position at which a zipper is attached to the opening and closing portion is at least 1 cm.