초록 ▼

A pre-formed (e.g. injection moulded) container body of flexible resilient plastics material is subjected to a subsequent cold-forming operation so that it is permanently deformed into a required configuration. For example, a desired container mouth configuration may be produced or handle-retaining

A pre-formed (e.g. injection moulded) container body of flexible resilient plastics material is subjected to a subsequent cold-forming operation so that it is permanently deformed into a required configuration. For example, a desired container mouth configuration may be produced or handle-retaining recesses may be formed.

대표청구항 ▼

A method of applying a handle-like member to a preformed container body of flexible, resilient plastics material having opposite side walls, comprising positioning a pair of dies having bores therein internally of said container at substantially diametrically opposite positions on said side walls, a

A method of applying a handle-like member to a preformed container body of flexible, resilient plastics material having opposite side walls, comprising positioning a pair of dies having bores therein internally of said container at substantially diametrically opposite positions on said side walls, and a pair of pistons outside said side walls in alignment with said bores of said dies, displacing said plastics material of said side walls into said bores by subjecting said side walls to cold-forming by applying pressure thereto by moving said pistons against said side walls and into said bores, forming oppositely disposed inwardly extending hollow recesses, adapted to receive projections on substantially opposite ends of a handle-like member, and said projections adapted to be forced into said hollow recesses causing said hollow recesses to assume the contour of said projections, forming said handle-like member having said projections on said substantially opposite ends, and forcing said projections into said hollow recesses causing said hollow recesses to assume the contour of said projections, and causing said handle-like member to become attached to said pre-formed container body.