Toothbrush with injection-moulded bristles and method and apparatus for producing the same
AssigneeTrisa Holding AG
InventorsRoger KIRCHHOFER, Peter ZURFLUH, Michael SCHAR
Life of this patent
Estimating the term…
Abstract
A toothbrush having a brush body and a bristle carrier that is produced from a hard material using an injection molding method and having injection-molded bristles that protrude from the bristle carrier. The injection molded bristles are produced from a bristle material using the injection molding method. The bristles have a bristle stem and the bristle carrier has a small carrier plate or is formed by the small carrier plate that is produced from a hard material using the injection molding method and fastened on the brush body. The hard material of the bristle carrier or the hard material of the small carrier plate is harder than the bristle material.
Claims44
A toothbrush comprising:
- a brush body;
- and
- a bristle carrier that is produced from a hard material using an injection molding method and having injection-molded bristles that protrude from the bristle carrier,
- wherein the injection molded bristles are produced from a bristle material using the injection molding method,
- wherein the bristles have a bristle stem and the bristle carrier has a small carrier plate or is formed by the small carrier plate that is produced from a hard material using the injection molding method and fastened on the brush body, and wherein the hard material of the bristle carrier or the hard material of the small carrier plate is harder than the bristle material.
A toothbrush comprising:
- a brush body;
- and
- a bristle carrier that is produced from a hard material using the injection molding method and having injection-molded bristles that protrude from the bristle carrier,
- wherein the injection molded bristles are produced from a bristle material using the injection molding method, wherein the bristles have a bristle stem and a bristle end and the bristle carrier has a small carrier plate or is formed by the small carrier plate that is produced from a hard material using the injection molding method and fastened on the brush body, and
- wherein bundles with extruded, conventional bristles are arranged on the bristle carrier or the small carrier plate, the number of bristles with extruded, conventional bristles being greater than the number of bristle ends of injection-molded bristles.
A toothbrush comprising:
- a brush body;
- and
- a bristle carrier that is produced from a hard material using the injection molding method and having injection-molded bristles that protrude from the bristle carrier,
- wherein the injection molded bristles are produced from a bristle material using an injection molding method,
- wherein the bristles have a bristle stem and a bristle end and the bristle carrier has a small carrier plate or is formed by the small carrier plate that is produced from a hard material using the injection molding method and fastened on the brush body,
- wherein bundles with extruded, conventional bristles are arranged on the bristle carrier or the small carrier plate, and
- wherein the bristles with extruded, conventional bristles are melted on their end facing away from the usage-side end.
Dependencies are inferred from the claim text.