Pullout spray head docking collar with enhanced retaining force

Details Pullout spray head docking collar with enhanced retaining force Pullout spray head docking collar with enhanced retaining force

E - Fixed Constructions

03

C

E03C 1/04 (2006.01) B05B 1/22 (2006.01) B05B 15/06 (2006.01)

Patent

CA 2449641

A faucet has a spout and a pullout spray head connected to a flexible water supply tube and releasably connectable to the spout. The spout has a docking collar mounted thereon for receiving a connecting shaft of the spray head. The docking collar has an annular wall with a plurality of U-shaped slots which define a plurality of cantilevered snap fingers. Each snap finger includes a projection that fits into a groove in the connecting shaft when the spray head is docked. An elastomeric O-ring surrounds the annular wall at a point where the O- ring engages the snap fingers to bias them toward the groove. Ridges on the exterior surface of the wall retain the O-ring in place. The spout and docked spray head have parallel shoulders that define a mating plane. The projections and groove define a retaining plane. The mating plane is not parallel to the retaining plane such that rotation of the spray head about an axis normal to the mating plane will cause the projections to release from the groove.

Un robinet est muni d'un bec et d'une douchette escamotable raccordée au tube flexible d'arrivée d'eau et qui peut être raccordée au bec de façon amovible. Le bec est muni d'un collier d'accrochage monté pour recevoir un arbre de raccordement de la douchette. Le colllier d'accrochage possède une paroi annulaire et une pluralité de fentes en U qui définissent une pluralité de doigts d'enclenchement en saillie. Chaque doigt d'enclenchement comporte une saillie qui s'adapte dans une rainure de l'arbre de raccordement de la douchette lorsque celle-ci est accrochée. Un joint torique en élastomère entoure la paroi annulaire en un point où le joint torique s'engage dans les doigts d'enclenchement pour les incliner vers la rainure. Des crêtes sur la surface extérieure de la paroi retiennent le joint torique en place. Le bec et la douchette comprennent des épaulements parallèles qui définissent un plan de contact. Les saillies et la rainure définissent un plan de retenue. Le plan de contact n'est pas parallèle au plan de retenue de sorte que la rotation de la douchette autour d'un axe normal au plan de contact fait que les saillies se dégagent de la rainure.

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