FR2509007A1

FR2509007A1 - Push button tap head - has threaded housing for push button valve with delayed closure

Info

Publication number: FR2509007A1
Application number: FR8113102A
Authority: FR
Inventors: F Gourbil
Original assignee: Les Robinets Presto SA
Current assignee: Les Robinets Presto SA
Priority date: 1981-07-03
Filing date: 1981-07-03
Publication date: 1983-01-07
Also published as: FR2509007B1

Abstract

The push button tap head is screwed into a tap, in place of the conventional head. The existing valve seat is permanently closed by a seal. When the valve is open, water flows through the central orifice into the tap outlet. The tap is opened by pressing the head to force the valve off the seat. When the valve is depressed, the piston in the cylinder moves down and water is forced past the flexible seal to fill the chamber. When the button is released the water can only pass slowly through the calibrated hole and the valve closes slowly.

Description

La présente invention est relative à une tête de robinet,comportant un dispositif de temporisation, adaptable aux embases conçues pour recevoir des têtes ordinaires. The present invention relates to a tap head, comprising a timing device, adaptable to bases designed to receive ordinary heads.

Les robinets actuels se composent de deux parties: une embase et une tête amovible. L'embase comporte un organe de fixation au mur ou à l'appareil sanitaire, un siège, un orifice d'entrée et un orifice de sortie de l'eau. La tête, qui se visse sur l'embase, comporte essentiellement le clapet et son dispositif de commande constitué par un bouton de manoeuvre rotatif ; c'est la seule partie qui comporte des organes mécaniques mobiles et, par conséquent, elle est amovible pour permettre son remplacement rapide. Current faucets consist of two parts: a base and a removable head. The base includes a fixing device to the wall or to the sanitary appliance, a seat, an inlet orifice and an outlet for the water. The head, which is screwed onto the base, essentially comprises the valve and its control device constituted by a rotary operating button; it is the only part which has movable mechanical members and, therefore, it is removable to allow its rapid replacement.

Ces robinets sont très répandus et équipent de nombreux locaux collectifs. Devant le coût de l'eau on tend de plus en plus à les remplacer par des robinets temporisés. Ge remplacement nécessite un investissement important car il faut remplacer les deux parties du robinet et,notamment, démonter l'embase et la canalisation d'arrivée d'eau Il faut noter aussi que dans certains cas, le démontage de l'embase risque de détériorer la surface sur laquelle elle s'appuie ( porcelaine ou céramique). These taps are very widespread and equip many collective rooms. Faced with the cost of water, there is an increasing tendency to replace them with timed taps. Ge replacement requires a significant investment because it is necessary to replace the two parts of the tap and, in particular, dismantle the base and the water inlet pipe. It should also be noted that in some cases, the dismantling of the base may deteriorate the surface on which it rests (porcelain or ceramic).

La présente invention a pour objet une tete amovible, comportant un dispositif de temporisation, pouvant s'adapter sur l'embase d'un robinet usuel. The present invention relates to a removable head, comprising a timing device, which can be adapted to the base of a conventional tap.

La tête de l'invention, qui se visse à la place de la tête usuelle, est remarqlable en ce qu'elle comporte un organe d'obturation permanent du siège de l'embase présentant en son centre un orifice normalement obturé par un clapet à fermeture temporisee. The head of the invention, which is screwed in place of the usual head, is remarkable in that it comprises a permanent shutter member of the seat of the base having in its center an orifice normally closed by a valve to timed closing.

D'autres caractéristiques apparaîtront mieux par la description qui va suivre, faite en se référant aux dessins annexés à titre d'exemple indicatif seulement, sur lesquels
La rivure 1 est une vue en coupe verticale montrant la tête de l'invention montée sur une embase usuelle, le robinet étant représenté en position de fermeture;
La figure 2 est une vue analogue à celle 1, le robinet étant représenté en position d'ouverture.Other characteristics will appear better from the description which follows, made with reference to the accompanying drawings by way of indicative example only, in which
The rivet 1 is a vertical sectional view showing the head of the invention mounted on a conventional base, the valve being shown in the closed position;
Figure 2 is a view similar to that 1, the valve being shown in the open position.

Le problème consiste à réaliser une tête pouvant se visser sur l'embase 1 d'un robinet usuel, fixée par exemple sur un lavabo 2, et comportant un orifice de sortie 3 séparé par un siège 4 de la canalisation d'arrivée d'eau raccordée à ladite embase. The problem consists in making a head which can be screwed onto the base 1 of a conventional tap, fixed for example on a sink 2, and comprising an outlet orifice 3 separated by a seat 4 from the water inlet pipe. connected to said base.

Selon la presente invention, la tête comporte un corps,par exemple en deux parties 5 et 6, pouvant se visser sur l'embase 1 par l'entremise d'un embout 7 présentant une extension 8 susceptible de s'étendre à l'intérieur de ladite embase pour obturer en permanence le siège 4 à l'aide d'un obturateur 9. According to the present invention, the head comprises a body, for example in two parts 5 and 6, which can be screwed onto the base 1 by means of a nozzle 7 having an extension 8 capable of extending inside. of said base for permanently closing the seat 4 using a shutter 9.

L'obturateur 9 présente un canal central 10 normalement obturé par un clapet 11, situé à l'extrémité d'une tige 12 reliée à un bouton poussoir 13. Le clapet Il est normalement rappelé contre son siège 14 (figure 2) par l'entremise d'un ressort 15 interposé entre le bouton poussoir 13 et la partie 5 du corps de la tête de robinet. The shutter 9 has a central channel 10 normally closed by a valve 11, located at the end of a rod 12 connected to a push button 13. The valve It is normally returned against its seat 14 (FIG. 2) by the through a spring 15 interposed between the push button 13 and the part 5 of the body of the tap head.

La tige 12 est liée en translation à un piston 16 pouvant être déplacé dans un alésage 17 du corps (5-6) obturé en 18 à une extrémité et communiquant par l'autre avec le siège 14, la chambre de temporisation 19 étant formée par le piston.16, l'alésage 17 et le fond 18. La chambre de temporisation 19 communique avec le siège 14 par l'entremise d'un trou 20 calibré à l'aide d'un fil 21 rigide. The rod 12 is linked in translation to a piston 16 which can be moved in a bore 17 of the body (5-6) closed at 18 at one end and communicating by the other with the seat 14, the timing chamber 19 being formed by the piston. 16, the bore 17 and the bottom 18. The delay chamber 19 communicates with the seat 14 through a hole 20 calibrated using a rigid wire 21.

De la façon connue, le piston 16 est pourvu d'une jupe d'étanchéité souple permettant à l'eau de pénétrer dans la chambre 19 lorsqu'on appuie sur le bouton poussoir 13, ladite action ayant pour effet d'éloigner le clapet 11 de son siège en permettant à l'eau de traverser ledit siège 14 ( figure 2). In known manner, the piston 16 is provided with a flexible sealing skirt allowing the water to enter the chamber 19 when the push button 13 is pressed, said action having the effect of moving the valve 11 away of its seat by allowing water to pass through said seat 14 (Figure 2).

En relachant le bouton poussoir le ressort 15 se détend et rappelle le clapet vers son siège mais cette action est freinée par l'eau contenue dans la chambre 19 qui s'échappe peu à peu par l'orifice calibré 20. By releasing the push button, the spring 15 relaxes and recalls the valve towards its seat, but this action is slowed down by the water contained in the chamber 19 which gradually escapes through the calibrated orifice 20.

A ce sujet, il y a lieu de noter que le fil 21 qui s'étend parallèlement à l'axe de la tige 12 constitue le prolongement de l'une des spires extrêmes d'un ressort 22 guidé sur ladite tige. In this regard, it should be noted that the wire 21 which extends parallel to the axis of the rod 12 constitutes the extension of one of the extreme turns of a spring 22 guided on said rod.

Bien entendu, la présente invention ne se limite pas au mode de réalisation décrit et représenté mais s'étend, au contraire, à toutes variantes de formes et dimensions. Of course, the present invention is not limited to the embodiment described and shown but extends, on the contrary, to all variants of shapes and dimensions.

Claims

1-Tap head, characterized in that it includes a member (9) for permanent closing of the seat (4) usual of the base (1) on which said test is screwed, said member forming the seat ( 14) a valve (11) subjected to the action of a timing mechanism.

2TeAte valve according to claim 1, characterized in that the closure member (9) has a central channel (10) comprising the seat (14) normally closed by the valve (11) held pressed against said seat by the action of a spring (15).

3-valve head according to claim 2, characterized in that the valve (11) is located at the end of a rod (12) passing through said head and connected to a push button (13) subjected to the action of spring (15) interposed between it and the upper part (5) of the body of the valve head.

4 ~ Tap head according to claim 3, characterized in that the rod (12) is connected in translation to a piston (16) movable inside the body (5-6) of the head delimiting a delay chamber ( 19) can communicate with the seat provided on the shutter through a calibrated hole (20).

5 ~ valve head according to claim 4, of the kind of those of which the section of the calibrated hole is determined by a fixed wire, characterized in that the calibration wire (21) which extends parallel to the axis of the rod ( 12) carrying the valve forms the extension of one of the extreme turns of a spring 22 guided on said rod.