YKK Corporation

Kurobe, Japan

YKK Corporation

Kurobe, Japan

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Patent
YKK Corporation | Date: 2016-09-16

There is provided a slider for a slide fastener. The slider includes a slider body, an elastic body and a pull tab. The pull tab includes a shaft, a pull tab main body and a cam. The cam is configured to elastically deform the elastic body when the pull tab is laid down. The slider body includes an upper blade and a pair of pull tab attaching posts. The upper blade includes a recess portion and a crimping portion. The recess portion includes a pair of lateral recess portions and a center recess portion. The crimping portion protrudes from at least one of the lateral recess portions at a protruding location located at a center side relative to both front and rear ends of the center recess portion.


Patent
YKK Corporation | Date: 2016-09-29

A hook fastener includes a stem having two lateral edges, a first surface, and a second surface. A cap extends from an upper end of the stem, and the cap includes an upper surface, a first end, a second end, and a pair of overhanging portions. The upper surface of the cap is sloped between the first end and the second end. The first and second ends are at opposite longitudinal ends of the cap, and each overhanging portion extends in a lateral direction from the stem.


Patent
YKK Corporation | Date: 2016-10-14

There is provided an apparatus for attaching an item to a substrate, using a prong ring with a ring and two or more prongs. When attached, the prongs extends from the ring on a first side of the substrate through such substrate and being bent. A lower die is positioned to approach the first side of the substrate. An upper die is on a second side of the substrate. The substrate is placed in a manner substantially perpendicular to the attaching movement of the upper and lower dies and a first redirecting member for redirecting the prongs which are bent inwardly. The first redirecting member cooperates with an abutting member positioned along the approach of the prong ring towards the first side of the substrate for inhibiting movement of the prong ring towards the substrate while the first redirecting member is used.


Patent
YKK Corporation | Date: 2016-11-10

A slide fastener chain includes a first tape and a second tape. A row of coupling elements is fixed along an inner edge of the first tape. A row of coupling elements is fixed along an inner edge of the second tape. The coupling elements of the first and second tapes being arranged such that the coupling elements of the first tape interdigitate with coupling elements of the second tape so as to secure the first and second tapes together. The chain includes a bottom stop. At least one of the tapes is provided with an extension portion which extends beyond a bottom stop portion of the tape. A width of the extension portion is less than a width of a portion of the tape which does not form part of the extension portion.


Patent
YKK Corporation | Date: 2016-12-07

Provided is a slider having appearance or texture which cannot be obtained with a slider body made of metal or synthetic resin in the related art and further having properties superior than those of sliders in the related art. A slider of an embodiment of the invention includes a slider body formed by sintered bodies containing zirconium oxide as a main component and a tab held by a tab attaching portion of the slider body.


Patent
YKK Corporation | Date: 2017-01-16

There is provided a slider for a slide fastener. The slider includes a body, a pull tab, a shaft member, and a coil spring. The pull tab has a base portion, a gripper and a claw portion protruding from the base portion. The shaft member is configured to rotatably support the pull tab relative to the body. The coil spring is attached around the shaft member to urge the gripper to be laid down toward the body. A claw guide portion allows a tip end of the claw portion to protrude into the guide groove. A restricting portion of the body restricts rotation of the pull tab when the pull tab is raised by a predetermined angle from the body. A restricted portion of the pull tab comes in contact with the restricting portion when the pull tab is raised by the predetermined angle from the body.


This slide fastener (1) is characterized in that the first and second main surfaces of the main body (21a, 51 a) of the engaging head (21, 51) of the fastener elements (20, 50) are flat surfaces that are orthogonal to the longitudinal tape direction and the pair of legs (23, 53) of the fastener element (20, 50) curve in a diagonal direction or extend at a slant with respect to the first and second main surfaces of the main body of the head (21a, 51 a). As a result, this slide fastener (1) has a different external appearance from previous slide fasteners and is able to stably achieve strength with respect to transverse pulling and strength with respect to thrusts that are equivalent to or greater than previous slide fasteners.


Patent
YKK Corporation | Date: 2016-03-30

A cloth evaluation apparatus can grasp the piercing property and the cutting property with a cloth in advance. The cloth evaluation apparatus (1) comprising: a measuring member (21, 71, 81) having, on its distal side, a measuring part (22) to pass through a cloth (c, d); a cloth/measuring part moving means (30, 40) for moving the cloth (c, d) or the measuring member (21, 71) so that the measuring part (22) passes through the cloth (c, d); a cloth supporting means (23, 23, 31) for supporting the cloth (c, d) at around a passing-through point, in the cloth (c, d), of the measuring part (22) from both sides of the cloth (c, d) when the measuring part (22) passes through the cloth (c, d); and a load detecting means (25) for detecting a load being applied to the measuring member (21, 71) while the measuring part (22) passes through the cloth (c, d). The measuring part (22) includes a piercing force measuring portion (22A, 72A) whose outer diameter gradually decreases toward its acute tip (22A) and, after the tip (22A) sticks the cloth (c, d), the piercing force measuring portion (22A, 72A) can pass through the cloth (c, d) while expanding a grain of the cloth (c, d). The measuring part (22) also includes a cutting force measuring portion (22B, 72B) adjacent proximally to the piercing force measuring portion (22A, 72A), the cutting force measuring portion (22B, 72B) having a shear face (22Bb) which can push a part of the cloth (c, d) in the passing direction to separate the part from the cloth (c, d) as the measuring part (22) passes through the cloth (c, d).


Patent
YKK Corporation and Gotalio Co. | Date: 2016-09-14

Provided is a sewn product in which a tape edge of a fastener tape and a material edge of a main material that is thicker than the fastener tape are stitched together in an abutted state, wherein the tape edge and the material edge are stitched together with one bobbin thread and two needle threads, the two needle threads being interlocked with the one bobbin thread to form a plurality of rows of zigzag stitched seams. In addition, the fastener tape and the main material are respectively fed with feed dogs that are set at different feed rates, while the first and second materials are pressed at an equal pressure.


Patent
YKK Corporation | Date: 2016-03-10

There is provided a buckle. A pair of vertical bars and a horizontal bar of a string attachment part of a female member are located below an upper surface of an operation portion. A coupling wall extending downwards from a front side of an upper plate of a female member main body and coupled to at least one of a lower plate of the female member main body and the string attachment part is provided. The operation portion is positioned at an outside with respect to an outer edge of the coupling wall at a state where engagement between an engaging portions of the male member and the engaged portions of the female member is released.

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