Koninklijke Philips Corporation N.v.

Other

Martin Varch

Michael Meidl

Florian Kopeinig

Thomas Johannes Gaertner

Johann T Rogatschnig

Christian Zainitzer

A brush head () for attachment to a shaft () of an oral care device (), the brush head () comprising: a neck () having a working head (), the neck being configured to transmit oscillations from the shaft to the working head; and a spring () captive within the neck, wherein upon insertion of the shaft into the assembled brush head, the spring provides a retention force for retaining the brush head on the shaft, characterised in that the spring is in direct mechanical contact with the neck and the shaft.

Brush head for an oral care device and method of assembling the same

A brush head () and a method for manufacturing a welded tuft assembly () for a brush head (). The method includes insertin g a bristle tuft () into an opening () in a retention element (). A proximal end of the bristle tuft () and a proximal side () of the retention element are laser welded to at least partially melt the bristle tuft and at least a portion of the proximal side of the retention element together to create a merged proximal end head portion () that holds the welded tuft assembly together.

Brush head manufacturing method

A brush head () and a method for manufacturing a brush head. The method includes forming a plurality of retention elements () each having an opening () therethrough. The retention elements () are positioned into corresponding recesses of a plate. A bristle tuft () is inserted into each of the openings of the retention elements. A proximal end () of each bristle tuft is bonded to the corresponding proximal side of the retention element to form a merged proximal end head portion () that secures the bristle tufts and the corresponding retention elements together as a plurality of merged tuft assemblies (). A neck () of the brush head is positioned in relation to the merged tuft assemblies. A platen () of the neck and the merged tuft assemblies is at least partially encompassed in a matrix ().

Brush head manufacturing method, and brush head

A brush head () and a method for manufacturing a welded tuft assembly () for a brush head (). The method includes inserting a bristle tuft () into an opening () in a retention element (). A proximal end of the bristle tuft () and a proximal side () of the retention element are laser welded to at least partially melt the bristle tuft and at least a portion of the proximal side of the retention element together to create a merged proximal end head portion () that holds the welded tuft assembly together.

A brush head () and a method of making a tuft spike () and a brush head with a plurality of tuft spikes. The brush head includes a matrix () having a plurality of receptacles () formed therein. A plurality of tuft spikes are each formed of a plurality of bristle strands () arranged in a tuft () having a free end () and a proximal end () inserted in a spike body (). Each tuft spike is disposed in one of the receptacles of the matrix. A brush head neck () has a distal platen () that is connected to and at least partially encompassed in the matrix.

Brush head arrangements

A method () for manufacturing a brush head (). The method includes the steps of providing a plurality of bristle tuft retention elements (), and inserting a bristle tuft () into each of the bristle tuft retention elements; using a heat reflection device () to evenly apply heat to at least partially melt the bristle tuft proximal end and, optionally, the retention element, create proximal end head portion () to retain the bristle tuft in the retention element.

Brush head manufacturing method and device

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

Brush head manufacturing methods using a molded tuft carrier and base plate

A brush head () and a method () for manufacturing a brush head. The method () includes stamping () a plurality of openings () into a strip or roll of backing material (). A bristle tuft () is inserted into each of the openings in the backing material. A proximal end () of each bristle tuft is bonded to a proximal side () of the backing material to create a merged proximal end head portion (). Excess portions of the backing material are removed to form a plurality of carrier elements () about the openings from the backing material. The carrier elements form a plurality of merged tuft assemblies (). A platen () of a neck () is positioned in relation to the merged tuft assemblies. A matrix material () is injected around the platen and the merged tuft assemblies to at least partially encompass the platen and the carrier elements of the merged tuft assemblies.

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St. Margareten, Austria

Martin Varch