Fastener chain element and fastener chain
AssigneeYKK Corporation
InventorsShigeyoshi Takazawa, Shigeki Annaka, Naoyuki Himi
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Abstract
There is provided an element for a fastener chain. The element includes a body portion fixed on a core portion of a tape, a neck portion, a pair of shoulder portions, an engaging head portion, and a pair of groove portions. As viewed in the width direction, at least one of the pair of shoulder portions and the pair of groove portions is configured to be inclined with respect to a reference direction, which is an extending direction of the core portion on which the body portion is fixed.
Claims11
A fastener chain including an element, the element comprising a body portion fixed on a core portion of a tape extending in a length direction and a width direction, the core portion extending in the length direction on one side edge portion of the tape;
- a neck portion protruding from the body portion to extend away from the tape in the width direction;
- a pair of shoulder portions protruding from a front surface and a rear surface of the neck portion in the length direction when considered from an upper side of the element;
- an engaging head portion protruding from the neck portion to extend away from the tape in the width direction;
- and a pair of groove portions formed in the engaging head portion, each of the groove portions extending in the length direction when considered from the upper side of the element,
- wherein as viewed in the width direction, the element has at least one of a protruding direction of the pair of shoulder portions inclined with respect to a reference direction and an extending direction of the pair of groove portions inclined with respect to the reference direction, wherein the reference direction is an extending direction of the core portion on which the body portion is fixed such that the fastener chain forms a curved shape when closed.
A fastener chain including an element, the element comprising a body portion fixed on a core portion of a tape extending in a length direction and a width direction, the core portion extending in the length direction on one side edge portion of the tape;
- a neck portion protruding from the body portion to extend away from the tape in the width direction;
- a pair of shoulder portions protruding from a front surface and a rear surface of the neck portion in the length direction when considered from an upper side of the element;
- an engaging head portion protruding from the neck portion to extend away from the tape in the width direction;
- and a pair of groove portions formed in the engaging head portion, each of the groove portions extending in the length direction when viewed from the upper side of the element,
- wherein as viewed in the width direction, an extending direction of the pair of groove portions of the element is parallel to a reference direction and a protruding direction of the pair of shoulder portions is inclined with respect to the reference direction, wherein the reference direction is an extending direction of the core portion on which the body portion is fixed such that the fastener chain forms a curved shape when closed,
- wherein as viewed in the width direction, the pair of groove portions, each having a parallel groove width dimension, as measured in a direction perpendicular to the reference direction, and the pair of shoulder portions, each having an inclined shoulder-portion thickness dimension, as measured in a direction perpendicular to an inclining direction, and each having an inclined shoulder-portion height dimension, as measured in the direction perpendicular to the reference direction, that satisfy the following relationship:
- the inclined shoulder-portion height dimension>the parallel groove width dimension>the inclined shoulder-portion thickness dimension.
A fastener chain including an element, the element comprising a body portion fixed on a core portion of a tape extending in a length direction and a width direction, the core portion extending in the length direction on one side edge portion of the tape;
- a neck portion protruding from the body portion to extend away from the tape in the width direction;
- a pair of shoulder portions protruding from a front surface and a rear surface of the neck portion in the length direction when considered from an upper side of the element;
- an engaging head portion protruding from the neck portion to extend away from the tape in the width direction;
- and a pair of groove portions formed in the engaging head portion, each of the groove portions extending in the length direction when considered from the upper side of the element,
- wherein as viewed in the width direction, the element has a protruding direction of the pair of shoulder portions parallel to a reference direction and an extending direction of the pair of groove portions inclined with respect to the reference direction, wherein the reference direction is an extending direction of the core portion on which the body portion is fixed such that the fastener chain forms a curved shape when closed.
Dependencies are inferred from the claim text.