US 2019/0159581 A1 · BRUSH PRODUCT AND METHOD FOR THE PRODUCTION THEREOF

Abstract

A brush product, in particular a toothbrush, having a base body with a head part with a front and a rear side, which includes a bristle carrier with a longitudinal axis and a transverse axis and a bristle field protruding therefrom, wherein the bristle field is formed by at least one group of cleaning elements; a handle part; and a neck part connecting the head part and the handle part; wherein the bristle carrier is provided with bristles which are mounted without being anchored and wherein the bristle carrier includes substantially a central support area, an upper support area, a lower support area, a right support area and a left support area, in which the groups of cleaning elements are arranged. Also, a corresponding method and tool.

Claims21

Dependent claims

A brush product, in particular a toothbrush, comprising a basic body having

a head part with a front side and rear side which includes a bristle carrier with a longitudinal axis and a transverse axis as well as a bristle field protruding therefrom, wherein the bristle field is formed by at least one group of cleaning elements;
a handle part;
and
a neck part which connects the head part to the handle part;
wherein
the bristle carrier is provided with bristles in an anchorless manner and wherein the bristle carrier comprises substantially a central carrier region, an upper carrier region, a lower carrier region, a right-hand carrier region and a left-hand carrier region, in which the groups of cleaning elements are arranged.

3 more elements

A method for producing a brush product which is provided with anchorless bristles, in particular a toothbrush, comprising a basic body having a head part, which includes a bristle carrier with a bristle field which protrudes therefrom, as well as having a handle part and a neck part which connects the head part to the handle part, wherein the method includes at least the following steps:

(a) inject a basic body having blind holes and/or recesses for bristle bundles in the head part;
(b) insert bristles in the form of puck bundles and/or in the form of mini bundles and/or in the form of grid bundles and/or in the form of long bundles and/or in the form of conventional bundles into a holding/pressing device;
(c) melt the bristles in bundles at the ends thereof provided for mounting in the bristle carrier;
(d) insert the melted bristle bundles by means of a holding/pressing device into the corresponding blind holes and/or recesses in the basic body;
(e) at least partially heat the bristle carrier to approximately the glass transition temperature thereof preferably by means of the holding/pressing device;
and
(f) mount the bristles by exerting pressure, by means of the holding/pressing device, onto the head part in such a manner that at least the geometry of the blind holes and/or recesses assumes at least in part the form of an anchor.

4 more elements

Dependencies are inferred from the claim text.

Brush product and method for the production thereof

Life of this patent

Brush product and method for the production thereof

Life of this patent

Abstract

Claims21