Ykk Corporation

Masanori Kayahara

Mineto Terada

Ryo Mikuma

Yuki Sakagami

Kazuya Taniguchi

A slide fastener includes a resin sheet that joins tapes on one surface among both surfaces of the tapes in a thickness direction, and that extends from a stop on a side opposite to element rows and is integral with the stop. The stop includes recesses on a boundary portion with the sheet of left and right side portions that respectively correspond to the tapes, and includes a recess region in a surface of the stop that is a region whose range in a left-right direction is defined by leftmost and rightmost ones of the recesses. A surface of the sheet includes a flat portion that is a region extending from the recess region toward the side opposite to the element rows.

Slide fastener

A slider for a waterproof slide fastener includes an upper blade and a lower blade opposing each other in an up-down direction, and a connecting post connecting the upper blade with the lower blade. Each of opposing surfaces includes a close-contact surface for sandwiching and close-contacting with a first stop in the up-down direction. At least one of the opposing surfaces includes right and left inclined surfaces provided respectively on right and left sides at a front sides of the close-contact surface and inclined in a direction widening a gap between the upper blade and the lower blade as the right and left inclined surfaces go forward. The at least one of the opposing surfaces includes an extended close-contact surface provided between the right and left inclined surfaces and extending forward from the close-contact surface.

Slider for waterproof slide fastener and waterproof slide fastener

The waterproof slide fastener includes a slider and a slider stopper member. A flange portion of the slider includes a linear portion extending linearly from a rear mouth and a curved portion extending to curve outward from an end part of the linear portion. The slider stopper member includes an insertion base portion disposed across right and left waterproof tapes, right and left insertion leg portions extending from the insertion base portion toward element rows, and flange press contact portions disposed on outer side surfaces of the respective insertion leg portions, wherein the flange press contact portion includes a press contact curved portion and a press contact straight portion extending linearly from a rear end part of the press contact curved portion. Thereby, even when the slider is held at a sliding limit vicinity position away from a sliding limit position, watertightness can be exerted.

Growing community of inventors

Kurobe, Japan

Masanori Kayahara