Patent ID: 6972106

Claim:
A method for producing a toothbrush comprising at least two molded parts by injection molding, comprising the steps of: injection molding of a first of the at least two molded parts forming at least part of a toothbrush handle from a first plastic material in a first step that includes formation of projections or recesses, respectively, on the first molded part on at least part of a contact surface; and injection molding of a second of the at least two molded parts bearing a brush head from a second plastic material in a subsequent second step that includes formation of corresponding recesses or projections, respectively, on the second molded part and engaging the projections or recesses on the first molded part, so that one molded part of the first and second molded parts is at least partially enclosed by the other molded part to interengage the first and second molded parts and mechanically join the parts firmly to one another without the second plastic material forming a chemical bond with the first plastic material during the injection-molding operation.