Method of producing a brush having a bristle plate
First Claim
1. A method of producing brushes comprising the steps ofproviding brush bodies of a plastic material, said brush bodies each having an attachment surface portion, providing plates of a plastic material, said plates each having tufts of brush bristles attached thereto and projecting from a first face, connecting each plate to the attachment surface portion of one of the brush bodies by ultrasonic welding;
- wherein said plates each have a peripheral rim on a second face opposite the first face, said peripheral rim defining an edge, and said plate contacting said attachment surface portion along said edge and said edge acting as an energy concentrator, said edge tapering toward said attachment surface portion, thus defining a tapered end of said peripheral rim.
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Accused Products
Abstract
A method of producing brushes by connecting plates of a plastic material, having each tufts of brush bristles attached thereto and projecting from a first face, to an attachment surface portion of a brush body made of plastic, in particular the same plastic, by means of ultrasonic welding of gluing. Each of the plates has a peripheral rim facing the brush body and having an edge formed thereon which acts as an energy concentrator in ultrasonic welding.
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Citations
33 Claims
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1. A method of producing brushes comprising the steps of
providing brush bodies of a plastic material, said brush bodies each having an attachment surface portion, providing plates of a plastic material, said plates each having tufts of brush bristles attached thereto and projecting from a first face, connecting each plate to the attachment surface portion of one of the brush bodies by ultrasonic welding; wherein said plates each have a peripheral rim on a second face opposite the first face, said peripheral rim defining an edge, and said plate contacting said attachment surface portion along said edge and said edge acting as an energy concentrator, said edge tapering toward said attachment surface portion, thus defining a tapered end of said peripheral rim. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13)
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8. The method of ciaim 4, wherein said extension is inserted in a stepped widened portion of said recess in said brush bodies.
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14. A method of producing brushes comprising the steps of
providing brush bodies of a plastic material, said brush bodies each having an attachment surface portion, providing plates of a plastic material, said plates each having tufts of brush bristles attached thereto and projecting from a first face, providing means for applying an adhesive in order to connect said plates to said attachment surface portions of said brush bodies by gluing; wherein said brush bodies and said plates are made of the same plastic material, said brush bodies are provided with a recess in which the plate is inserted to fit and said attachment surface portion is located at the bottom of said recess, wherein an injection mold is provided in which part of said brush body with said plate inserted therein is provided for molding around at least the peripheral region of said plate. - View Dependent Claims (15)
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16. A method of producing a brush comprising the steps of:
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providing a brush body of a plastic material, said brush body having an attachment surface portion;
providing a plate of a plastic material, said plate having tufts of brush bristles attached thereto and projecting from a first face;
connecting said plate to said attachment surface portion of said brush body by ultrasonic welding;
wherein said plate has a second face opposite said first face, said plate having a circumferential rim projecting from said second face and defining an edge, and said plate contacting said attachment surface portion along said edge so that a first gap is formed between said attachment surface portion of said brush body and said second face of said plate, said edge acting as an energy concentrator. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A method of producing a brush comprising the steps of:
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providing a brush body of a plastic material, said brush body having an attachment surface portion, providing a plate of plastic material, said plate having tufts of brush bristles attached thereto and projecting from a first face, providing means for applying an adhesive in order to connect said plate to said attachment surface portion of said brush body by gluing, wherein said brush body and said plate are made of the same plastic material, said brush body being provided with a recess in which said plate is inserted to fit and said attachment surface portion being located at the bottom of said recess, said plate having a second face opposite said first face, said plate having a circumferential rim projecting from said second face and defining an edge, and said plate contacting said attachment surface portion along said edge so that a gap is formed between said attachment surface portion of said brush body and said second face of said plate. - View Dependent Claims (33)
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Specification