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    Brush head manufacturing methods using a molded tuft carrier and base plate
    3.
    发明授权
    Brush head manufacturing methods using a molded tuft carrier and base plate 有权

    公开(公告)号：US11497301B2

    公开(公告)日：2022-11-15

    申请号：US16758333

    申请日：2018-06-20

    申请人： KONINKLIJKE PHILIPS N.V.

    发明人： Michael Meidl ,  Martin Varch ,  Florian Kopeinig

    IPC分类号： A46D3/00 ,  A46B9/04 ,  B29C45/14 ,  B29L31/42

    摘要： A method for manufacturing a brush head (10). The method includes molding a tuft carrier (50) having at least one retention element (52) that are positioned relative to a handling plate (101). Excess material (59) may be removed from the tuft carrier. The retention elements are loaded into recesses of the handling plate. A bristle tuft (21) comprised of a plurality of bristles (22) is inserted into the opening (51) of each retention element. A proximal end (23) of each bristle tuft (21) is bonded together with at least a portion of the proximal side (53) of each corresponding retention element (52) to form a merged proximal end head portion (26) that secures the bristle tufts and retention elements together as a plurality of merged tuft assemblies (20). A platen (42) of a neck (40) is positioned in relation to the merged tuft assemblies using a cavity in a base plate. A matrix material (30) is overmolded to at least partially encompass the platen and the merged tuft assemblies and form the brush head.

    Cell of a brush making device
    4.
    发明授权
    Cell of a brush making device 有权

    公开(公告)号：US11470957B2

    公开(公告)日：2022-10-18

    申请号：US16997566

    申请日：2020-08-19

    申请人： The Procter & Gamble Company

    发明人： Andreas Birk ,  Holger Port

    IPC分类号： A46D3/00 ,  A46D3/08 ,  A46D3/04 ,  B29C45/26 ,  B29L31/42

    摘要： A cell of a brush making device for making at least a part of a toothbrush, having a pin unit having at least one pin, a pin holding sub-unit and a pin guiding sub-unit, the pin having a first section having a first end and a second section having a second end, the first section having a holding structure, and at least one spring section arranged between the first section and the second section, the pin holding sub-unit having a holding structure that is engaged with the holding structure of the pin for fixedly holding the pin, the pin holding sub-unit and the pin guiding sub-unit being arranged for being movable along a first direction towards and away from each other, and the pin guiding sub-unit having a channel for guiding at least a portion of the second section of the pin, the channel being inclined against the first direction.

    Oral care implement having multi-component handle
    5.
    发明授权
    Oral care implement having multi-component handle 有权

    公开(公告)号：US11338485B2

    公开(公告)日：2022-05-24

    申请号：US17000400

    申请日：2020-08-24

    申请人： Colgate-Palmolive Company

    发明人： Michael Rooney ,  Eduardo Jimenez ,  Marco Bohner ,  Robert Moskovich

    IPC分类号： B29C45/16 ,  A46B5/02 ,  B29C45/00 ,  B29C45/14 ,  A61C17/00 ,  B25G1/10 ,  B29L31/42 ,  B29K21/00 ,  B29K23/00 ,  B29K25/00

    摘要： A method of forming a handle for an oral care implement. The method may include first forming a core structure out of a first hard plastic. Next, an elongated handle body may be formed out of a second hard plastic, whereby during formation the elongated handle body is made to partially surround the core structure, while leaving opposing surfaces of the core structure exposed. Finally, a grip cover may be formed out of a resilient material and positioned over at least a portion of the elongated handle body. The oral care implement handle formed by the method may include a handle having an elongated handle body and a core structure. The elongated handle body may have openings in opposing surfaces. The core structure may be partially surrounded by the elongated handle body while protruding from the openings.