Docking collar for a faucet having a pullout spray head

Details Docking collar for a faucet having a pullout spray head Docking collar for a faucet having a pullout spray head

E - Fixed Constructions

03

C

E03C 1/04 (2006.01) B05B 1/22 (2006.01) B05B 15/06 (2006.01) E03C 1/02 (2006.01)

Patent

CA 2449644

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 as 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 reliée à un tuyau d'alimentation en eau souple enfichable de manière amovible au bec de robinet. Le bec comporte un collier d'accrochage destiné à recevoir un arbre de liaison de la douchette. Le collier d'accrochage est doté d'une cloison annulaire pourvue de plusieurs fentes en forme de U qui correspondent à une multitude de doigts à ressort en porte-à-faux. Chaque doigt à ressort comprend une saillie qui s'emboîte dans une rainure de l'arbre de liaison lorsque la douchette est accrochée. Un joint torique en élastomère entoure la cloison annulaire à un point où le joint engage les doigts à ressort pour les forcer vers la rainure. Les stries situées sur la surface extérieure de la cloison maintiennent le joint torique en place. Le bec et la douchette accrochée ont des épaulements parallèles qui forment un plan de mise en contact. Les saillies et la rainure forment un plan de retenue. Le plan de mise en contact n'est pas parallèle au plan de retenue, ce qui fait que la rotation de la douchette sur un axe normal par rapport au plan de contact fera en sorte que les saillies sortent de la rainure.

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