EVAN DAK WAH DENGLER,GREGORY RUSS GODDARD,HEIDI ROSE
申请号：
US15127913
公开号：
US20170105824A1
申请日:
2015.03.24
申请国别(地区):
US
年份:
2017
代理人:
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.
