Hook structure of molded surface fastener

Details Hook structure of molded surface fastener Hook structure of molded surface fastener

1996-01-05

1996-09-03

Cuomo, Peter M.

Buckles, buttons, clasps, etc.

Including readily dissociable fastener having numerous,...

Having mounting surface and filaments constructed from...

24442, 24449, A44B 1800

Patent

active

055511309

ABSTRACT:
In a hook structure for a molded surface fastener, each of hooks is composed of a rising portion, which has a rear surface rising obliquely in a smooth curve from the substrate, a front surface rising upwardly from the substrate, and side surfaces from at least one of which a reinforcing rib extends, and a hook-shape engaging portion extending forwardly from an upper end of the rising portion. The engaging portion has a varying cross-sectional area increasing progressively from its distal end toward the upper end of the rising portion. A straight line between a peak of the rib and a peak of an arcuate lower surface of the engaging portion is substantially parallel to the upper surface of the substrate. The rib is rising upwardly and substantially centrally from a side surface of base of each hook. A straight line passing a center point in height of the rib and parallel to the surface of the substrate crosses a ridge of the rib and a ridge of the rising portion of each hook in such a manner that the ratio of a line segment of the straight line between the crossing points with the ridge of the rib to a line segment of the straight line between crossing points with the ridge of the rising portion is 1/5 to 1/2.

REFERENCES:
patent: 3557413 (1971-01-01), Engle
patent: 4001366 (1977-01-01), Brumlik
patent: 4984339 (1991-01-01), Provost et al.
patent: 5116563 (1992-05-01), Thomas et al.
patent: 5131119 (1992-07-01), Murasaki et al.
patent: 5339499 (1994-08-01), Kennedy et al.
patent: 5361462 (1994-11-01), Murasaki

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