Bi-positionable tooth brush

A - Human Necessities – 46 – B

Patent

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Details

A46B 9/04 (2006.01) A46B 5/00 (2006.01)

Patent

CA 2287073

A bi-positional toothbrush comprising a brush head member (18) rotatably mounted to a handle (14) by a cylindrical pin (22) and coil spring (26) is described. The brush head member includes an array of bristles (42) at a forward end and terminates in an essentially flat angled surface (46) at a rearward end. The angled surface includes an axial bore (58) shaped to permanently constrain the forward end of the pin. The handle is elongated and includes at a forward end an essentially flat surface (70) angled at the same angle to the long axis of the handle as the angled flat surface of the brush head member is to its long axis. The angled flat surface of the handle includes an axial bore orthogonal thereto, sized to receive the pin and terminating in a means to rotatable secure the pin within the axial bore. The angled surfaces of the handle and brush head member includes symmetrical locking features (54, 86).

L'invention concerne une brosse à dents à deux positions, comprenant un élément de tête de brosse (18) monté rotatif sur un manche (14) au moyen d'une tige cylindrique (22) et d'un ressort hélicoïdal (26). L'élément de tête de brosse comprend une rangée de poils (42) à une extrémité avant et se termine par une surface angulaire essentiellement plate (46) située à une extrémité arrière. La surface angulaire comprend un trou axial (58) formée de manière à exercer en permanence une contrainte sur l'extrémité de la tige. Le manche est allongé et comprend à une extrémité avant une surface essentiellement plate (70) en angle dans le même angle par rapport à l'axe long du manche que la surface plate en angle de l'élément de tête de brosse par rapport à son axe long. La surface plate en angle du manche comprend un trou axial orthogonal par rapport à cette surface, proportionné pour recevoir la tige et se terminant par un dispositif permettant de fixer rotative la tige dans le trou axial. Les surfaces en angle du manche et de la tête de brosse comprennent des caractéristiques de blocage symétriques (54, 86).

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