MOLD-IN TOUCH FASTENER SYSTEMS WITH WAVE-SHAPED WALL

摘要

A touch fastener strip includes a pair of longitudinal barrier walls each extending upward from a base, a plurality of lateral barrier walls each extending upward from the base and between facing surfaces of the barrier walls, thereby defining one or more fastening cells, and a pair of wave walls each extending upward from the base and outboard the barrier walls thereby defining a relief space. Each wave wall has a wave shape having rising and falling edges, at least one of the edges having a slope in the range of 3° to 65°. In some cases, the wave shape has a duty cycle of 40% to 60%, and may include a sine wave, a triangle wave, a ramp wave, and/or a bi-modal wave having two different peak points in a given cycle of the shape. In one example application, the strip may be anchored in a foam cushion product.

主权项

1. A fastener system, comprising:
a base having a pair of opposing longitudinal edges and a pair of opposing lateral edges; a pair of longitudinal barrier walls each extending upward from a surface of the base and inboard a corresponding one of the longitudinal edges of the base; one or more fastener elements extending upward from the surface of the base; and a pair of wave walls each extending upward from the surface of the base and outboard a corresponding one of the longitudinal barrier walls thereby defining a foam relief space between each wave wall and corresponding longitudinal barrier wall, wherein each wave wall has a wave shape configured with rising and falling edges, wherein the wave shape has a duty cycle in the range of 40% to 60%.