Abstract: A fixing member is provided for fixing a front end section to the rest of a base plate. The fixing member is provided with a surface fastener which is integrally molded with the fixing member.

Abstract: 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.

Abstract: There is provided a male engaging member of a surface fastener comprising novel engaging elements that are flexible to a certain extent and highly durable and, at the same time, ensure a certain level of peeling resistance. The engaging elements of such an engaging member stably remain in engagement with piles of a female engaging member coupled with it without unintentionally becoming disengaged from the piles caught by them. The engaging miember comprises a flat substrate sheet, first engaging elements having a stem and an engaging portion disposed at the top thereof and second engaging elements having a column portion and a tilted hitch portion also disposed at the top thereof, the first engaging elements and the second engaging elements being arranged in linear rows independently relative to each other.

Abstract: First and second molten resins are continuously injected toward the respective circumferential surfaces of a die wheel and an associated roller in rotation in opposite directions. The die wheel has in its circumferential surface a multiplicity of engaging-element-forming cavities, and the associated roller is disposed in parallel confronting relationship with the die wheel with a gap equal to the thickness of a substrate sheet of a molded surface fastener member. During that time, a porous core sheet is introduced toward a meeting point of the first and second molten resins and is sandwiched between a first substrate sheet part, which is molded on the circumferential surface of the die wheel, and a second substrate sheet part, which is molded on the circumferential surface of the associated roller, to form a unitary laminate substrate sheet. The resulting molded surface fastener member is free from expansion and local thin portions in either substrate sheet part and is therefore prevented from being torn.

Abstract: 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.

Abstract: This invention provides a surface fastener of thermoplastic resin comprising, as integrally molded members thereof, a flat substrate and rows of large number of hooks standing from the substrate as engaging members and arranged continuously. The hooks of the surface fastener according to the invention hardly collapse, even if they are very small, and reliably come into engagement with mating loops of a matching surface fastener to provide a satisfactory engaging and peeling strength and a high ratio of engagement. The surface fastener according to the invention can endure repetitive engaging and disengaging operations.

Abstract: 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.

Abstract: A fastening connector of thermoplastic resin for connecting two separate members together is continuously molded efficiently in a single step by a simple method and apparatus. The method includes the steps of continuously extruding molten resin from an injection nozzle to the circumferential surface of a die wheel, which has in the circumferential surface, a multiplicity of engaging-element-forming cavities, to continuously mold a substrate sheet between the circumferential surface of the die wheel and the injection nozzle and a multiplicity of engaging elements in the engaging-element-forming cavities which elements stand on a front surface of the substrate sheet and, at the same time, to continuously mold at least one engaging ridge, through an engaging-ridge-molding channel, with part of the molten resin integrally with a rear surface of the substrate sheet.

Abstract: 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 surface fastener, 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.

Abstract: In a synthetic resin molded surface fastener, each of a multiplicity of engaging elements has a stem standing on a front surface of a substrate sheet and a horizontally expandable and shrinkable engaging head continuously formed on and horizontally bulging from an upper end of the stem. The engaging head is divided into two or more segments resiliently bendable toward and away from one another. When the engaging head engages a respective one of engaging heads of a companion surface fastener, each of protuberances projecting from the front surface of the substrate sheet centrally between four adjacent ones of the engaging elements comes into the gap between the segments to bend the segments away from one another, increasing the entire diameter of the engaging head so that the engaging elements can be engaged with those of the companion surface fastener stably without rattling.

Abstract: 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.

Abstract: 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.

Abstract: 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 surface fastener, 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.

Abstract: 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.

Abstract: In a molded surface fastener, a hook structure has on at least one surface of a stem an upright reinforcing rib extending from the base of the stem to part of a hook-shape engaging portion. The reinforcing rib projects upwardly with respect to the rear surface of the hook-shape engaging portion and terminates in an apex whose height is smaller than the height of the apex of the hook-shape engaging portion and greater than the height of the line tangential to the hook-shape engaging portion at the tip and substantially parallel to the upper surface of the substrate sheet.

Abstract: In a structure of the surface fastener of this invention, a substrate sheet has on its surface a plurality of dimples each defining a hollow large enough to receive a companion loop, and engaging elements are integrally molded and stand from the bottom surface of the dimple. With the surface fastener of this invention, the height of the hooks in appearance is short and the flexibility of the molded surface fastener is secured, and the hooks are prevented from falling laterally and forwardly excessively so that an adequate degree of durability for repeated use can be achieved and the flexibility of the substrate sheet and reliability of molding can be improved while securing engaging strength and a high rate of engagement with a loop of the companion surface fastener.

Abstract: 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.

Abstract: In an automatic lock slider for a concealed slide fastener, a fastener-element guide post of a slider body has an upper groove receiving a locking lever and a lower groove slidably receiving a sliding end of a pivoting release member. A spring mounted in the guide post acts on an actuating arm of the locking lever to urge a locking pawl of the locking lever to normally project into a fastener-element guide channel of the slider body. An ornamental knob attached to the pivoting release member covers exposed part of the slider body. As the knob is pulled to pivotally move the release member, the locking pawl is retracted from the guide channel.

Abstract: In a hook structure for a molded surface fastener, in an arbitrary cross section of each of a stem and a hook-shape engaging portion of a hook, the cross-sectional area is divided into front and rear side cross-sectional areas with respect to the center line of the hook, and the front side cross-sectional area is defined to be larger than the rear side cross-sectional area.