초록 ▼

A double wall squeeze-and-turn child-resistant safety closure wherein skirt flexure stiffening web ribs are integrally molded into the closure so as to extend radially between the mutually facing wall surfaces of the skirts. The ribs are arranged in two sets of diametrically opposed web pairs genera

A double wall squeeze-and-turn child-resistant safety closure wherein skirt flexure stiffening web ribs are integrally molded into the closure so as to extend radially between the mutually facing wall surfaces of the skirts. The ribs are arranged in two sets of diametrically opposed web pairs generally angularly registered with an associated one of the pair of diametrically opposed outer wall squeeze zones. Each rib is also integrally joined to the closure base wall and protrudes therefrom axially of the closure a predetermined distance greater than the axial thickness of the peripheral region of the closure base wall that is joined to the ribs to thereby shift the outer skirt wall flexure swing point. Each pair of ribs is angularly spaced from one another on the closure base wall one on either side of and closely adjacent to a plane oriented at about 90 degrees to a plane intersecting the closure CR lugs to further localize the squeeze zone area. A pair of pressure pads are located one in each of the outer skirt wall squeeze zones and form a radially thickened portion that further stiffens and localizes the flexure mode of the outer skirt. The outer skirt wall preferably also has wall thickening portions radially inwardly protruding from the inner surface thereof and generally angularly registered with the pressure pads and web ribs to further enhance the outer skirt flexure mode and further localize effective squeeze activation area of the outer skirt wall.

대표청구항 ▼

[ I claim:] [1.] A squeeze and turn plastic closure comprising(a) a base wall,(b) an outer peripheral skirt wall joined at one axial end to said base wall and having diametrically opposed squeeze pressure application zones,(c) an inner peripheral skirt wall also joined at one axial end to said base

[ I claim:] [1.] A squeeze and turn plastic closure comprising(a) a base wall,(b) an outer peripheral skirt wall joined at one axial end to said base wall and having diametrically opposed squeeze pressure application zones,(c) an inner peripheral skirt wall also joined at one axial end to said base wall and concentrically spaced radially inwardly of said outer wall,(d) integral thread means on an inner surface of said inner wall adapted for engaging thread means on a finish of a associated container,(e) a set of diametrically opposed CR lugs on said outer wall of said closure adapted for engaging cooperative CR lugs on the finish of the container and being angularly offset from said outer wall squeeze zones, and(f) skirt flexure stiffening integral web means extending between an inner surface of said outer wall and an outer surface of said inner wall,said web means being angularly offset and positioned circumferentially spaced apart from and generally between said outer wall CR lugs and generally angularly aligned with at least one of said outer wall squeeze zones.