초록 ▼

An integrally molded, unitary, plastic dispensing closure comprising a body, a lid, and a “living”hinge that joins the lid to the body. Cams and cooperating wall surfaces in the vicinity of the hinge provide forces that temporarily deform the hinge, within its plastic limits, and facilitate the move

An integrally molded, unitary, plastic dispensing closure comprising a body, a lid, and a “living”hinge that joins the lid to the body. Cams and cooperating wall surfaces in the vicinity of the hinge provide forces that temporarily deform the hinge, within its plastic limits, and facilitate the movement of the lid to either an opened, or a closed, position. In one embodiment, recesses are formed at the rear of the closure body to accommodate the cams when the closure is in its closed position. In another embodiment, recesses are formed in the skirt of the lid to accept upwardly extending posts, and a cavity is defined in the upper surface of the closure body to accept cams, or lugs, depending below the lid. An efficient, aesthetically pleasing, low profile dispensing closure is achieved in each instance.

대표청구항 ▼

An integrally molded, unitary, plastic dispensing closure comprising: (a) a closure body of substantially cylindrical shape adapted to be secured to a container, (I) said closure body comprising a top surface extending across one end of said closure body, (II) said top surface having a dispensing op

An integrally molded, unitary, plastic dispensing closure comprising: (a) a closure body of substantially cylindrical shape adapted to be secured to a container, (I) said closure body comprising a top surface extending across one end of said closure body, (II) said top surface having a dispensing opening extending therethrough, (III) a wall segment sloping downwardly below said top surface and a wall extending parallel to said top surface, (IV) said wall segment and said wall extending parallel to said top surface defining a cavity extending below said top surface, (V) a first post and a second post projecting upwardly from said top surface at points remote from said dispensing opening, (b) a lid, (I) said lid comprising an unbroken, continuous planar top and a shallow annular skirt, (II) a plug depending below said planar top, (III) a first lug and a second lug depending from said planar top and extending below said annular skirt, (IV) said lugs contacting said posts when said lid is in its opened position, (V) a holder located below said planar top and between said first and second lugs, (VI) said skirt having at least one recess defined at one side of said holder, said skirt also having at least one recess defined at the opposite side of said holder, (c) a thin flexible hinge, (I) said hinge being joined to said holder on the skirt of said lid along a first pivot line, (II) said hinge being joined to said closure body along a second pivot line, (III) said hinge urging said lid to a stable position, (d) said lid being pivoted between opened and closed positions while the lugs function as cams to facilitate the temporary deformation of said hinge while passing between its opened and closed positions, (e) said sealing plug being seated within said discharge opening when said lid is in its closed position, (f) said lugs on said lid fitting into said cavity in said top surface, and (g) said posts fitting into recesses on said annular skirt of said lid so that said skirt contacts the upper surface of said closure body.