Toothbrush and process for producing the same
First Claim
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1. A toothbrush comprising:
- a handle part;
a head part connected to the handle part, the head part having a front and a rear face;
at least one carrier element made of a hard plastic material and of a soft plastic material and connected to the head part, the at least one carrier element having a top surface, a rear surface and a plurality of cutouts running between the top surface and the rear surface of the carrier element; and
clusters of bristle filaments guided through the cutouts, the bristle filaments having a rear end melted to form a bristle coating, the bristle coating covering the rear surface of the at least one carrier element at least partially,wherein the at least one carrier element holding the clusters of the bristle filaments is connected to the head part such that the rear surface of the at least one carrier element is at a distance from the front face of the head part thereby forming a cavity between the at least one carrier element and the front face of the head part, andthe at least one carrier element is at least in part resiliently deformable with respect to the head part in order to assume a non-planar three-dimensional configuration at least during use.
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Abstract
The invention relates to a toothbrush that is produced by AFT and has a head part and at least one carrier element connected thereto. A front surface of the head part is formed by the top surfaces of the at least one carrier element and has a non-planar three-dimensional configuration, or is capable of assuming such a configuration during intended use. The invention also relates to a process for producing such a toothbrush.
71 Citations
31 Claims
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1. A toothbrush comprising:
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a handle part; a head part connected to the handle part, the head part having a front and a rear face; at least one carrier element made of a hard plastic material and of a soft plastic material and connected to the head part, the at least one carrier element having a top surface, a rear surface and a plurality of cutouts running between the top surface and the rear surface of the carrier element; and clusters of bristle filaments guided through the cutouts, the bristle filaments having a rear end melted to form a bristle coating, the bristle coating covering the rear surface of the at least one carrier element at least partially, wherein the at least one carrier element holding the clusters of the bristle filaments is connected to the head part such that the rear surface of the at least one carrier element is at a distance from the front face of the head part thereby forming a cavity between the at least one carrier element and the front face of the head part, and the at least one carrier element is at least in part resiliently deformable with respect to the head part in order to assume a non-planar three-dimensional configuration at least during use. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A toothbrush comprising:
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a handle part; a head part connected to the handle part, the head part having a front face and a rear face; at least one carrier element made of a hard plastic material and of a soft plastic material and connected to the head part, the at least one carrier element having a top surface, a rear surface and a plurality of cutouts running between the top surface and the rear surface of the carrier element; and clusters of bristle filaments guided through the cutouts, the bristle filaments having a rear end melted to form a bristle coating, the bristle coating covering the rear surface of the at least one carrier element at least partially, wherein the at least one carrier element holding the clusters of the bristle filaments is connected to the head part only in subsections of a circumferential region of the at least one carrier element and the rear surface of the at least one carrier element is at a distance from the front of the head part thereby forming a cavity between the at least one carrier element and the front face of the head part, and the at least one carrier element is at least part resiliently deformable with respect to the head part in order to assume a non-planar three-dimensional configuration at least during use. - View Dependent Claims (25, 26, 27)
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28. A toothbrush comprising:
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a handle part; a head part connected to the handle part, the head part having a front face and a rear face; at least one carrier element made of a hard plastic material and of a soft plastic material and connected to the head part, the at least one carrier element comprising flexible cleaning elements made of the soft plastic material, and the at least one carrier element having a top surface, a rear surface and a plurality of cutouts running between the top surface and the rear surface of the carrier element; and clusters of bristle filaments guided through the cutouts, the bristle filaments having a rear end melted to form a bristle coating, the bristle coating covering the rear surface of the at least one carrier element at least partially, wherein the at least one carrier element holding the clusters of the bristle filaments is connected to the head part such that the rear surface of the at least one carrier element is at a distance from the front face of the head part thereby forming a cavity between the at least one carrier element and the front face of the head part; and the at least one carrier element is at least in part resiliently deformable with respect to the head part in order to assume a non-planar three-dimensional configuration at least during use.
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29. A toothbrush comprising:
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a handle part; a head part connected to the handle part, the head part having a front face and a rear face; at least one carrier element made of a hard plastic material and of a soft plastic material and connected to the head part, the at least one carrier element having a top surface, a rear surface and a plurality of cutouts running between the top surface and the rear surface of the carrier element; and clusters of bristle filaments guided through the cutouts, the bristle filaments having a rear end melted to form a bristle coating, the bristle coating covering the rear surface of the at least one carrier element at least partially, wherein the at least one carrier element holding the clusters of the bristle filaments is connected to the head part such that the rear surface of the at least one carrier element is at a distance from the head part thereby forming a cavity between the at least one carrier element and the front face of the head part, the at least one carrier element is at least in part resiliently deformable with respect to the head part in order to assume a non-planar three-dimensional configuration at least during use, and wherein the head part has lateral cutouts through which the cavity beneath the at least one carrier element is accessible.
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30. A toothbrush comprising:
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a handle part; a head part connected to the handle part the head part having a front face and a rear face; at least two carrier elements made of a hard plastic material and of a soft plastic material and connected to the head part, the at least two carrier elements each having a top surface, a rear surface and a plurality of cutouts running between the top surface and the rear surface of the carrier element; and clusters of bristle filaments guided through the cutouts, the bristle filaments having a rear end melted to form a bristle coating, covering the rear surface of a corresponding one of the at least two carrier elements at least partially, wherein the at least two carrier elements holding the clusters of the bristle filaments are connected to the head part such that the rear surface of the at least two carrier elements is at a distance from the front face of the head part thereby forming a cavity between the at least two carrier elements and the front face of the head part, the at least two carrier elements are at least in part resiliently deformable with respect to the head part in order to assume a non-planar three-dimensional configuration at least during use. - View Dependent Claims (31)
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Specification