PLASTIC CONTAINER HAVING A ROTARY CLOSURE

摘要

A plastic container that is produced by an extrusion process or a PET blowing process having an associated rotary closure, which can be brought from a closed position to an open position by a pivoting movement. The neck of the container and the rotary closure are each made of only a single part. The container has a straight or slightly conical neck, which forms a radially protruding collar on the outside in the bottom half of the neck, on a lower edge of which collar an attachable rotary closure having snapping elements that can be locked, such that the rotary closure is retained on the neck so that the rotary closure can be pivoted about an axis of rotation of the rotary closure.

主权项

1. A plastic container, produced either by an extrusion process, by a PET blow-molding process or an injection-molding process, with an associated rotary closure that can be brought into an open position from a closed position by a pivoting, wherein the container has a neck, which is straight or converges on its inner side conically or spherically in the direction of the container and forms on the outside in its lower half a radially protruding collar, on the lower periphery of which an attachable rotary closure can be locked in by snapping elements, so that said rotary closure is held on the neck pivotably about its axis of rotation, wherein the collar also forms radial surfaces, which act as stop surfaces for radial ribs on the inner side of the associated rotary closure for limiting the pivoting range between the closed position and the open position of the rotary closure on the neck, also in that the mouth of the neck forms an end face, into which there leads a channel that is formed on the neck inner side, bulges out from the neck in the radial direction and is open toward the inner side of the neck, and in that the rotary closure has on the inner side of its lid surface at least one outer tube portion, and also coaxially thereto an inner, longer tube portion or a conically converging or convexly outwardly curved continuation, wherein the outer tube portion lies in a sealing manner on the end face when the rotary closure is attached, and the inner, longer tube portion or the conically converging or convexly outwardly curved continuation extends into the neck interior while lying in a sealing manner against the correspondingly formed neck inner wall and has at one location an aperture , and in that between the outer tube portion and the inner tube portion, or between the outer tube portion and the conically converging or convexly outwardly curved continuation, there is at the location of the aperture a hole in the lid surface, so that the aperture can be brought over the location of the bulging channel for the open position, so that liquid can flow through the aperture and the hole to the outside, whereas in the closed position the inner tube portion or the conically converging or convexly outwardly curved continuation covers over the bulging channel in the neck in a sealing manner.