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Method for connecting bristle supports having bristles to cover parts during brush production

A technology of cover parts and bristles, applied in the direction of bristle brackets, brushes, applications, etc., to achieve the effect of safe interconnection

Active Publication Date: 2012-12-12
GB保捷利公众有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that a gap or cavity remains between the rear side of the top plate and the end side of the recess in the brush body

Method used

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  • Method for connecting bristle supports having bristles to cover parts during brush production
  • Method for connecting bristle supports having bristles to cover parts during brush production
  • Method for connecting bristle supports having bristles to cover parts during brush production

Examples

Experimental program
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Effect test

Embodiment Construction

[0039] The following embodiments of the method relate to the production of toothbrushes. However, the same principles can also be applied to make other types of brushes.

[0040] exist figure 1 3 shows a brush neck 10 in a toothbrush handle and a head part 12 which has a mounting area 14 for a bristle holder in the form of a bristle holder platelet 16 already fitted with bristles. The bristle holder platelets 16 are equipped with variously formed and shaped bristle bundles, which are preferably fixed by the AFT method mentioned at the outset. However, depending on the type of bristles or brush elements, other fastening methods are also possible, such as spraying elastics or gluing natural fibers.

[0041] The fitting area 14 of the head part 12 , also called the cover part, is fitted with a consumption structure in the form of thin ribs having a ring surrounded by each other, said ribs protruding from the bottom of the fixing area. Said rib is surrounded by the outer circum...

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PUM

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Abstract

A bristle support is produced from thermoplastic plastics material, having through holes and a peripheral edge surrounding said holes. Brush elements such as bristles, bundles of bristles, cleaning elements made of elastomer material and natural fibres are then fastened in the holes of the bristle support. Furthermore a cover part as a component of a brush body made of thermoplastic plastics material is formed and provided with a mounting region for the bristle support and with sacrificial structures formed in the mounting region and a connecting edge surrounding the mounting region. The peripheral edge of the bristle support and the sacrificial structures as well as the connecting edge of the cover part are then plasticised by heating. Then the bristle support and the cover part are pressed against one another, and the plasticised peripheral edge of the bristle support is welded to the plasticised connecting edge of the cover part. The plasticised material of the sacrificial structures flows into the volume remaining between the bristle support and the cover part and surrounded by the connecting edge, said plasticised material at least substantially filling said volume.

Description

technical field [0001] The present invention generally relates to a method for producing a brush, in particular to a method for connecting a bristle-carrying bristle holder and a cover part during the production of a brush, especially a toothbrush. Background technique [0002] Different methods are known for producing brushes. Conventionally, the brush body is provided with a configuration of holes ("hole pattern") which correspond to the desired arrangement of the bristles. The bundles or tufts of bristles are then inserted into the holes of the brush body and anchored in said holes by means of small metal anchors pressed in or by means of loops. [0003] In an alternative method for the manufacture of brushes, which has been implemented in recent years and is called the AFT method (Anchor Free Tufting), the bristle tufts are fixed on a small brush top plate without rings or anchors, And then, the support plate is inserted into the brush body or the handle or fastened to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A46B7/00
CPCA46B7/00
Inventor 巴尔特・杰勒德・布舍里
Owner GB保捷利公众有限公司
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