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Method for producing a toothbrush, and toothbrush

a technology for which is applied in the field of producing a toothbrush and a mouthpiece, can solve the problems of compromising the appearance of the mouthpiece, affecting the quality of the mouthpiece, etc., and achieves a high degree of automisation in manufacture and few method steps.

Inactive Publication Date: 2014-06-26
TRISA HLDG AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is a grip body made of plastic that has multiple components arranged in a specific way to perform different functions. It is designed to be easy to manufacture with minimal steps and inexpensively. The body can be made in large quantities and allows for automation during production.

Problems solved by technology

Thus, the tooling costs are quite high due to the use of several tool cavities for the manufacture of an injection moulded part.
Moreover, the manufacturing speed and thus the productivity are comparatively low due to the reapplication step.
Injection points however compromise the appearance of a grip body, so that the number of such injection points or of injection points on the surface is to be kept as low as possible.
Moreover, the fashioning or design possibilities of the grip body manufactured from different material components remain limited despite the mentioned technical possibilities.
A so-called interflowing of different plastic components is not possible, or can only be implemented by way of the application of complicated and expensive injection moulding moulds.

Method used

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  • Method for producing a toothbrush, and toothbrush
  • Method for producing a toothbrush, and toothbrush
  • Method for producing a toothbrush, and toothbrush

Examples

Experimental program
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Effect test

Embodiment Construction

[0139]FIGS. 1 to 4, in a purely schematic manner, show the manufacture of a grip body 1a according to a first design variant. For manufacturing the shown grip body 1 in the first design variant, a first material component 7 is injected into a tool cavity (not shown) in a first step. The tool cavity or the grip body to be manufactured 1a is a longitudinal component and comprises a grip part 4a, a neck part 3a and a head part 2a. The injection point 10 is arranged in the grip part 4a. The tool cavity in a first step is only partly filled with the first material component 7, wherein at least the grip part of the tool cavity is completely or at least partly filled with the first material component due to the arrangement of the injection point 10 in the grip part 4a. The injected first material component 7 thereby assumes the contour of the tool cavity in the grip part 4a (see FIG. 1). FIG. 1 schematically shows the outline contour of the body moulded in the first injection procedure wit...

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Abstract

A grip body of a body care article, such as toothbrush, includes a grip part, a neck part and a head part. The grip body includes a first and a second material component of a thermoplastic plastic. The first and the second material component have a common injection point that is arranged outside a mould partition line formed by the mould partition.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The invention relates to the field of grip bodies, in particular for body care articles or cosmetic articles, such as toothbrushes, tongue cleaners, wet-shaving sticks, oral hygiene articles, mascara applicators, nail varnish applicators, lipstick applicators, etc. The invention in particular relates to a grip body for a toothbrush, with a grip part, with a neck part and with a head part, wherein the grip body comprises at least one first and a second material component of thermoplastic plastic. The invention moreover relates to a method for manufacturing such a grip body as well as to an injecting moulding tool for carrying out the method.[0003]2. Description of Related Art[0004]It is known to manufacture grip bodies for body care and cosmetic products, in particular for toothbrushes, of plastic by way of an injection moulding method, wherein the grip body is injection moulded from several different thermoplastic plast...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A46B5/00B29C45/16
CPCB29C45/16A46B5/00A46B5/02B29C45/1642B29C2045/0034B29C2045/0027B29C2045/1654B29C2045/2893B29L2031/425A46B2200/1066B29C45/46B29C45/14336B29C45/1645B29C2045/167B29C45/27B29C45/1615
Inventor KIRCHHOFER, ROGERSCHAR, MICHAELZWIMPFER, MARTINZURFLUH, PETER
Owner TRISA HLDG AG
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