Brush and method of producing the same
AssigneeM+C Schiffer GmbH
InventorAndreas Lanvers
Life of this patent
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Abstract
A brush, preferably a toothbrush, comprises a brush body and at least one bundle of flexible bristes. At least one supporting element is provided on the brush body for laterally supporting at least one bundle of bristles. This improves the service life of the bundles of bristles, allowing a prolonged use of the brush and a sufficiently high flexibility of the bristles or bundles of bristles at the same time. A method of producing the brush is also indicated.
Claims8
A method of producing a toothbrush including a body portion, a support layer portion on said body portion, and a plurality of bundles of synthetic plastic bristles supported by at least one of said body and support layer portions, comprising:
- (a) melting a first end of each of said bristle bundles to form a thickened bristle bundle end portion;
- (b) injection molding a support layer at least partially around each of said bristle bundles adjacent said first end, said bristle bundles having exposed second ends that extend from one face of said support layer;
- and
- (c) injection molding a body layer in secured relation to the face of said support layer remote from said first face;
- (d) said injection molding steps causing said bristle bundle enlarged end portions to be embedded and positively held in the associated one of said body and support layers.
A toothbrush, comprising:
- (a) a plurality of bundles of synthetic plastic bristles (20c, 20d) arranged in parallel spaced relation, said bristle bundles having corresponding first ends that are melted to form enlarged end portions (25c, 25d);
- (b) a support layer (30c, 30d) of elastic non-rigid synthetic plastic material formed by injection molding about at least corresponding intermediate portions of said bristle bundles adjacent said enlarged first end portions, said bristle bundles having second ends that extend outwardly from a first face of said support layer;
- and
- (c) a body layer formed by injection molding a rigid synthetic plastic layer on the face of said support layer that is remote from said first face, said bristle bundle enlarged end portions being embedded and positively held in one of said layers.
Dependencies are inferred from the claim text.