Toothbrush with resilient flexible bristle support

Details Toothbrush with resilient flexible bristle support Toothbrush with resilient flexible bristle support

A - Human Necessities

46

B

A46B 9/04 (2006.01)

Patent

CA 2350442

A toothbrush is disclosed having a brush head that includes a flexible member formed for resilient flexure between a first shape and a second shape. The flexible member has first and second sides and a central bristle support portion disposed between first and second outer bristle support portions. The flexible member also has an elastic portion interconnecting the central bristle support portion to the first and second bristle support portions along lateral edges thereof. The toothbrush further includes a pair of handle extensions for supporting the flexible member at the first and second sides thereof such that the flexible member is free to flex between first and second shapes when stressed. An array of first bristle tufts is attached to the central bristle support portion. First and seccond arrays of second bristle tufts are attached to the first and second outer bristle support portions, respectively, and are aligned in parallel relation to the array of first bristle tufts. The first and second arrays of second bristle tufts are dimentioned and positioned relative to the array of first bristle tufts such that when the first bristle tufts are pressed against the biting surface of a tooth, the flexible member is caused to change its size and shape whereby the first and second arrays of second bristle tufts incline toward the array of first bristle tufts.

Brosse à dents dotée d'une tête qui comporte un élément souple formé de manière à se courber entre une première forme et une seconde forme. L'élément souple possède des premier et second côtés et une partie centrale de support des poils placée entre des première et seconde parties externes de support de poils. L'élément souple possède également une partie élastique connectant la partie centrale de support de poils aux première et seconde parties externes de support de poils le long des bords latéraux desdites parties. Ladite brosse à dents comporte en outre une paire d'extensions de la poignée destinées à supporter l'élément souple au niveau de ses premier et second côtés, de manière que ledit élément souple soit libre de se courber entre des première et seconde formes lorsqu'il subit une contrainte. Un groupe de premières touffes de poils est attaché à la partie centrale de support de poils. Des premier et second groupes de secondes touffes de poils, attachés respectivement aux première et seconde parties externes de support de poils, sont alignés en parallèle par rapport au groupe de premières touffes de poils. Les premier et second groupes de secondes touffes de poils possèdent des dimensions telles et sont placés par rapport au groupe de premières touffes de poils de manière telle que lorsque les premières touffes de poils sont poussées contre la surface d'une dent, l'élément souple est amené à modifier sa taille et sa forme, ce qui entraîne les premier et second groupes de secondes touffes de poils à s'incliner vers le groupe de premières touffes de poils.

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