Ykk Corporation

Yoshida Kogyo K.k.

Kenji Yuki

Masayoshi Kojima

Keiichi Keyaki

Ryo Tanaka

Masahiro Kusayama

Hideki Sato

Satoshi Matsumoto

Shigeyoshi Takazawa

Susumu Ishii

Kiyomasa Segawa

Jiro Nozaki

Osamu Igarashi

Koji Muratsubaki

Youhei Kaetsu

Hiroo Minami

In a slide fastener () according to the invention, each fastener element () includes an upper half element portion () disposed at a first surface side of a fastener tape () and a lower half element portion () disposed at a second surface side of the fastener tape (). The upper half element portion () includes a first tape-sandwiching portion () and a first head portion () of a tapered form that extends from the first tape-sandwiching portion (). The upper half element portion () has a tapered portion () that gradually decreases in a dimension between front and rear side surfaces, in the tape length direction, of at least the first tape-sandwiching portion () as it goes upward. According to the slide fastener () of the invention, each fastener element () can be formed lightweight, and the fastener element () can be given an appearance looking like a metal fastener element.

Slide fastener

In a slide fastener according to the invention, each fastener element includes an upper half element portion disposed at a first surface side of a fastener tape and a lower half element portion disposed at a second surface side of the fastener tape. The upper half element portion includes a first tape-sandwiching portion, a first head portion of a tapered form, and a thin walled portion which has a downward inclined surface that is inclined downward toward the forefront of the first head portion from the thin walled start portion set on the upper half element portion to the first head portion side. Thereby, the fastener element can be formed lightweight and can make coupling breaking difficult to occur.

A slide fastener includes a pair of first and second separable interfitting parts fixed to first and second fastener stringers. The first separable interfitting part includes a slider-holding part, and the second separable interfitting part is configured to be insertable/removable into/from the slider held on the slider-holding part through the tape insertion gap. A protruding part is arranged at a front end of the second separable interfitting part. A width dimension A of the protruding part, a dimension B between a back end of a side surface of the protruding part and an opposed end on a side opposite to the first separable interfitting part, and a dimension C between a guide post and a flange of the slider have a relationship of A&#x3c;C&#x3c;B.

A slide fastener where each fastener element includes an upper half element portion disposed at a first surface side of a fastener tape and a lower half element portion disposed at a second surface side of the fastener tape. The upper half element portion includes a first tape-sandwiching portion and a first head portion of a tapered form that extends from the first tape-sandwiching portion. The upper half element portion has a tapered portion that gradually decreases in a dimension between front and rear side surfaces, in the tape length direction, of at least the first tape-sandwiching portion as it goes upward. Each fastener element can be lightweight, and the fastener element can look like a metal fastener element.

Chain for slide fastener

A waterproof slide fastener and a manufacturing apparatus thereof are disclosed, wherein each fastener element has a coupling head, a neck portion, a body portion, and leg portions which are continuously fused and integrated, a terminal end is projected from a gap between upper/lower half portions of the coupling head, upper/lower flanges of a slider make a sliding contact with a surface of each of upper/lower half portions of each leg portion, each half portion of the leg portion extending from the body portion via a crotch portion and guiding the flanges, two or more leg portions are disposed with a predetermined interval in a sliding direction, an entire shoulder width of a shoulder portion is larger than a body width of the body portion if it is provided, thereby intensifying fixing strength between a fastener tape and fastener elements and waterproofness, and allowing a smooth sliding of a slider.

Waterproof slide fastener and apparatus for manufacturing the same

A waterproof slide fastener and a manufacturing apparatus thereof, wherein each fastener element has a coupling head, a neck portion, a body portion, and leg portions which are continuously fused and integrated, a terminal end is projected from a gap between upper/lower half portions of the coupling head, upper/lower flanges of a slider make a sliding contact with a surface of each of upper/lower half portions of each leg portion, each half portion of the leg portion is formed in a flat plate shape with a step and thinner than each half portion of the neck portion and the body portion in a direction perpendicular to a plane in which the fastener tape lies, and extending from the body portion via a crotch portion and guiding the flanges, two or more leg portions are disposed with a predetermined interval in a sliding direction.

This invention relates to a concealed-type slider. Side walls are erected on both sides of a bottom plate of a body and a top end of each side wall is bent to form a flange. A guide portion is provided by forming a down-grade slope inclined from a leading end of a shoulder opening side of the flange between the flange and the side wall. The leading end of the flange provided with this guide portion is disposed at right angle to or tilted more or less toward a rear mouth side with respect to a side face of a guide post. Consequently, when an insert pin is inserted, the guide portion guides a fastener tape smoothly and when sliding the slider in its closing direction, the sliding operation can be executed smoothly.

Slider for a concealed slide fastener

Slider for slide fastener

A reinforcement tape is stuck to an outer front surface of a fastener tape and a fastener element removed portion at a space portion, in which fastener elements are removed and to which the separable bottom end stop of the concealed type slide fastener, for example, a insert pin or the like is attached, by ultrasonic welding. The reinforcement tape may be, for example, a tape whose front surface is made of a thermoplastic elastomer film while its rear surface is made of hot melt adhesive agent. At the same time of the above sticking, an edge portion is formed into a U shape and its surface is reinforced and then, the insert pin or the like is attached to this portion. The fastener tape itself does not come into contact with a diamond of a slider, even if outer face of the U-shaped edge portion comes into sliding contact with the diamond, so the fastener tape is protected from being worn or damaged.

Concealed type slide fastener with separable bottom end stop

A separable bottom end stop for a concealed slide fastener, wherein reinforcement portions for reinforcing bent edge portions of a fastener tape are molded integrally with a box pin and a separable pin using resin, such that the reinforcement portions are swollen from a top surface of the tape, while the reinforcement portion on the box pin side is formed such that a bottom end thereof is in the same plane as the box pin. A front end of the reinforcement portion on the separable pin side has a protruded portion being protruded in parallel to the separable pin and a box has an L-shaped engaging portion and a contact portion provided on a surface thereof. When the box pin is inserted into and fixed to the box and the separable pin is inserted into the box, the protruded portion makes contact with the engaging portion.

Separable bottom end stop for concealed slide fastener

A slider for a slide fastener with an automatic locking mechanism comprises a small number of components and hence can be assembled and operated with ease. A slider body of the slider has a receiving hole for receiving a resilient plate running in parallel with a guide groove and arranged in the upper wing plate of the slider body. The receiving hole has an enlarged open section arranged at the side of a rear opening and communicating with the guide groove to a claw receiving hole, and is formed to have a narrow tubular shape above a guide post. A wide groove is arranged along a lateral side of the receiving hole with a gap therebetween. A through hole is arranged to perpendicularly cross the receiving hole at the middle thereof. The resilient plate is introduced into the receiving hole from the U-shaped spring side for mutual engagement and the actuating portion of the operating member is introduced into the through hole until the cam surface resiliently abuts the actuated portion of the resilient plate and the spring plates extending from the operating portion exposed from the upper wing plate are arranged in the wide groove so that the operating member is held in place and resiliently movable back and forth. As the operating portion is operated, the cam surface raises the resilient plate and hence the locking claw to allow the slider to slide.

Growing community of inventors

Toyama-ken, Japan

Kenji Yuki