Liquid container

Abstract

A liquid container comprises a container body (1) and a cap (2). The container body (1) has a circular tubular neck portion (13) with an outer peripheral surface provided with a protrusion (13a) for locking the cap (2). The cap (2) has a pair of lockable arms (24) arranged in a lateral direction and each provided with a hook portion (24a) adapted, during an operation of attaching the cap (2) to the container body (1), to be engaged with the locking protrusion (13a). Further, the cap (2) internally has a pair of first reinforcing ribs (26) each adapted to restrict a flexural displacement of a respective one of the lockable aims (24) in the lateral direction, and a pair of second reinforcing ribs (28) each connecting an inner surface of the cap and a respective one of the lockable arms (24) in a frontward-rearward direction.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a liquid container useful as a container for an eye drop (ophthalmic solution), a nose drop (nasal solution), a contact-lens cleaning solution or the like.[0003]2. Description of the Related Art[0004]Heretofore, as a container for an eye drop or the like, there has been commonly known a type which comprises a container body having a nozzle, and a cap detachably attachable to the container body, wherein it is designed to allow a medical solution to be instilled (dropped) from a tip end of the nozzle through an operation of gently pressing the container body while orienting the tip end of the nozzle downwardly under a condition that the cap is detached.[0005]Particularly, a so-called twist cap-type liquid container having a pair of lockable arms provided on an inner peripheral surface of a cap is widely used as the container for an eye drop or the like, wherein it is designed such that the...

AI Technical Summary

Benefits of technology

[0012]Particularly, in addition to the first reinforcing ribs each adapted to restrict a flexural displacement of a respective one of the lockable pieces in the arrangement direction of the lockable pieces, the second reinforcing ribs each connecting a respective one of the lockable pieces and an inner surface of the cap are provided. This makes it possible to efficiently increase the rigidity of each of the lockable pieces by utilizing a narrow internal space of the cap.

[0014]This structure makes it possible to adequate permit a flexural (bending) deformation in the distal end region (portion provided with the engagement portion) of each of the lockable pieces while increasing the rigidity of the entire lockable piece, so that the lockable piece can be adequately locked to the locking protrusion while being elastically deformed along with pushing of the cap, and a clicking feeling to be produced during the locking can be effectively enhanced.

Problems solved by technology

Thus, in the injection blow molding process, it is difficult to provide a protrusion on the shoulder portion.

Therefore, for practical purposes, the sub-type of liquid container designed to enhance a clicking feeling cannot respond to production based on the injection blow molding process.

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