Process for making toothbrushes
AssigneeGlaxoSmithKline Consumer Healthcare GmbH & Co. KG
InventorsWinfried Ebner, Hans Kraemer, Berthold Meyer, Andreas Walgenbach
Life of this patent
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Abstract
A process for making a toothbrush head comprising widthways adjacent sections, the process comprising the stages of first making the head in an injection moulding process with the sections relatively spaced apart from each other in a widthways direction, then secondly moving the sections of the so formed head relatively spaced closer to each other in a widthways direction. An apparatus for performing the process is also disclosed.
Claims4
An apparatus adapted to be supplied with a plastics material skeleton of a toothbrush comprising a handle part and at least two sections spaced apart adjacent to each other on opposite sides of a toothbrush longitudinal direction, each section comprising a head part adapted to carry bristles and a neck part by which the head part is integrally connected to the handle, the sections being flexibly integrally linked to each other, the apparatus being adapted to move the head part and the neck part of the sections relatively closer together, the apparatus comprising a mould cavity to contain the handle part and the immediately longitudinally adjacent part of the neck parts, and further comprising means to inject a hot elastomeric material into the mould cavity to flow around and/or between the sections.
Dependencies are inferred from the claim text.