摘要:
The present invention provides a fastener strip having magnetically attractable particles which are not located across the entire volume of the strip, but rather are incorporated in a discrete, distinct area of the strip. The fastener strip has a base and many hook pieces which rise from a fastening surface of the base. One embodiment has a magnetically attractable body in a row which rises from the surface of the base and is located along a substantially center line of the fastener strip. The magnetically attractable particles are incorporated in the magnetically attractable body and a part of the base located below the magnetically attractable body, and the magnetically attractable particles are not dispersed across the whole area of the base. A method of manufacturing such a strip is also described here.
摘要:
The present invention provides a fastener strip having magnetically attractable particles which are not located across the entire volume of the strip, but rather are incorporated in a discrete, distinct area of the strip. The fastener strip has a base and many hook pieces which rise from a fastening surface of the base. One embodiment has a magnetically attractable body in a row which rises from the surface of the base and is located along a substantially center line of the fastener strip. The magnetically attractable particles are incorporated in the magnetically attractable body and a part of the base located below the magnetically attractable body, and the magnetically attractable particles are not dispersed across the whole area of the base. A method of manufacturing such a strip is also described here.
摘要:
This invention provides a fastener strip in which fastening elements form a fastener layer on a front face of the fastener strip. Rows of vertical members are disposed along each of the side edges of the fastener layer and each row comprises vertical members formed with an appropriate interval between them for controlling the degree of foam penetration during the molding process. The vertical members anchor the fastener strip to an object during molding of the object and form an effective seal against fouling of the fastening elements.
摘要:
A molded surface fastener is manufactured by supplying molten resin to the circumferential surface of a die wheel rotating in one way to mold a substrate sheet blank and a multiplicity of substantially straight and inclined engaging element blanks in an integral form, and then pressing distal ends of the engaging element blanks by a heat-molding roller in rotation at the same speed to incline the engaging element blanks further toward the substrate sheet blank and also to melt the distal ends to shape each said distal end into an engaging head projecting in a direction opposite to the direction of inclination of the respective engaging element blank. Each of the resulting engaging elements is composed of a stem rising from the substrate sheet surface with inclination by a predetermined angle (.theta.1), and an engaging head projecting from an upper end of the stem in a direction opposite to the direction of inclination of the stem, an extension line of the engaging head crossing the substrate sheet surface at a predetermined acute angle (.theta.2).
摘要:
In a molded surface fastener, a hook has vertical multi-step reinforcing ribs on opposite side surfaces of a stem, and it is therefore possible to make the hook-shape engaging portion adequately soft and to increase the rate of engagement with loops. Further, since each reinforcing rib extends to the curve of the hook-shape engaging portion, it is possible to secure a predetermined degree of engaging force, despite the thin and soft hook-shape engaging portion, unlike the simple reinforcing ribs of the conventional art.
摘要:
A molded surface fastener is manufactured by supplying molten resin to the circumferential surface of a die wheel rotating in one way to mold a substrate sheet blank and a multiplicity of substantially straight and inclined engaging element blanks in an integral form, and then pressing distal ends of the engaging element blanks by a heat-molding roller in rotation at the same speed to incline the engaging element blanks further toward the substrate sheet blank and also to melt the distal ends to shape each said distal end into an engaging head projecting in a direction opposite to the direction of inclination of the respective engaging element blank. Each of the resulting engaging elements is composed of a stem rising from the substrate sheet surface with inclination by a predetermined angle (.theta.1), and an engaging head projecting from an upper end of the stem in a direction opposite to the direction of inclination of the stem, an extension line of the engaging head crossing the substrate sheet surface at a predetermined acute angle (.theta.2).
摘要:
A surface fastener molded of synthetic resin, comprises a substrate sheet, and a multiplicity of hook elements molded on at least one surface of the substrate sheet, each hook element having a hook body having a stem and a curved portion. Each of the hook elements has first and second reinforcing ribs projecting from opposite side surfaces of the hook body. The first reinforcing rib is greater in height than the second reinforcing rib. In the presence of the first and second reinforcing ribs different in height, compression stresses developed in the hook body are dispersed at two or more points when a companion engaging element is removed off the hook element.
摘要:
A synthetic resin molded surface fastener comprising: a substrate sheet; and a multiplicity of minute engaging elements molded on a front surface of the substrate sheet for engagement with loops of a companion surface fastener. In the molded surface fastener, each of the engaging elements has a multiple-head structure composed of a single stem standing on the front surface of the substrate sheet, two or more necks branching in different directions from an upper end of the stem, and two or more substantially straight engaging heads bent outwardly in branching directions from respective outer ends of the necks. And each of the engaging heads having on its top a pair of substantially horizontal protuberances projecting perpendicularly to an extending direction of each engaging head, the top having a substantially flat surface, each engaging head having a varying thickness gradually decreasing from its base toward its distal end.
摘要:
In a skidproof device continuously molded of synthetic resin and adapted to be used with a disposable companion sheet product, a multiplicity of skidproof engaging elements are molded on the front surface of a substrate sheet for mating with engaging elements of the companion sheet product. Each skidproof engaging element is composed of a single stem, at least two necks branched and gently sloping upwardly from an upper end of the stem, and at least two heads extending one from an upper end of each neck with an upward gentle slope. Each head has on its top an upwardly convex arcuate surface. Having the differently directed engaging elements, the front surface of this device is smooth in touch and non-directive to give adequate resistance to skidding.
摘要:
A molded surface fastener comprises: a substrate sheet; and a multiplicity of engaging elements standing on one surface of the substrate sheet, each of the engaging elements being composed of a stem rising from the one surface of the substrate sheet, and an engaging head projecting from an upper end of the stem for detachably engaging a companion loop. After a surface fastener is manufactured on a die wheel by continuous injection molding as a primary-intermediate, a heating and pressing roller disposed downstream of the die wheel presses the engaging head, while heating, to bend the engaging head from the stem and, at the same time, to form a pair of protuberances projecting in opposite directions from opposite side edges of the top of the engaging head perpendicularly with respect to a direction lengthwise of the engaging head.