BRUSH HEAD ARRANGEMENTS

摘要

A brush head (100) having a distal end, including: an elastomeric matrix (30) including a first surface (32), and a plurality of retention rings (50) disposed in the elastomeric matrix, each of which includes a first end (51), a second end (53) positioned closer to the first surface of the elastomeric matrix than the first end, an interior wall (55) with a central longitudinal axis (111), and an exterior wall (57). The interior wall of at least a first retention ring is generally circular in shape; the interior wall of at least a second retention ring is generally non-circular in shape; the exterior wall is generally non-circular in shape; and at least one of the interior wall or the exterior wall includes a taper (61, 63). The brush head can also include a plurality of bristle tufts (21), each of which is inserted into one of the plurality of retaining rings.

主权项

1. A brush head having a distal end 36, comprising:
an elastomeric matrix comprising a first surface; a plurality of retention rings disposed in the elastomeric matrix, each of which comprises a first end, a second end positioned closer to the first surface of the elastomeric matrix than the first end, an interior wall forming an interior space with a central longitudinal axis, and an exterior wall, wherein: the interior wall of at least a first retention ring of the plurality of retention rings is generally circular in shape; the interior wall of at least a second retention ring of the plurality of retention rings is generally non-circular in shape; the exterior wall of each of the plurality of retention rings is generally non-circular in shape; and at least one of the interior wall or the exterior wall of each of the plurality of retention rings comprises a taper extending from the first end to the second end in a direction toward the central longitudinal axis; a plurality of bristle tufts, each of which is inserted into the interior space of one of the plurality of retaining rings, comprises a plurality of bristle strands, has a proximal end and a free end, and is retained at its proximal end by the formation of a head portion of the bristle tuft adjacent to the exterior of the second end of the one of the plurality of retaining rings; and a neck, a distal platen portion of which is connected to and at least partially embedded in the proximal end of the elastomeric matrix, wherein the neck is formed of a material with a higher elastic modulus value than the elastomeric matrix.