DE2252395A1 - SWITCH FOR A TUB-SHOWER SYSTEM - Google Patents

Description

SOOIETE GElTERALE DE K) EDERIE

8, place ü ¹ IeQa

PARIS 16 ° / France Our sign; S 2746

Changeover switch for a bathtub-shower system.

The subject of the invention is a hand-operated changeover switch for a tub-shower system.

The invention relates in particular to a device for automatic switching of the water flow, which permits, with cold, warm or mixed water depending on after either a shower pipe or a spout for feeding dining in a bathtub, although it should be understood that this is the most common use however, the device can also be used in other fields of application which have the same operating conditions require·

In the field of tap equipment, changeover switches with a closure member are known which connect the circuit "Shower" closes and the "tub" flow circuit opens when the water supply is switched off in order to prevent untimely showering later. Look for a spring in these switches to bring the closure member, which is generally firmly connected to the actuating member, into the "tub" position, which the

In the

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Water flow to the outflow "tub ¹ *. If the closing element is brought into the" Brauee "position by manual operation, it remains in this position as long as the hydrostatic pressure acting on it exceeds the counterforce of the spring. Venn the flow rate to the shower drops to too low a value, the action of the spring becomes predominant and the locking member is returned to the "pan" position. French patent no Object·

Experience shows, however, that these Umschalsehalter generally not below one. Speieedrucke von 0.5) can work bar. So for small flow rates it returns the toggle switch back to the bathtub position, while the user wishes to keep the shower circuit. But now it can it can happen that the user does not have a feed pressure above 0.5 bar. This is the case, for example, during a Period of drought or in certain buildings in which the apartments are supplied with water through float taps supplied storage container takes place. Furthermore, a pressure loss can occur behind electric water heaters, which causes a significant reduction in pressure.

The aim of the invention is to remedy this disadvantage and to provide a changeover switch with automatic return produce, which can also work in the shower position regardless of the pressure.

The manually operated changeover switch according to the invention for the water flow for a tub-shower system has a housing which contains a closure element which between a position supplying the shower and a position Tub supplying position shiftable, attached to an axially adjustable axis and with a-thin manual operating member is connected, this closure member can be brought into the shower division by the hand-operated actuator, an elastic member returning the closure member to the tub position when the one acting on the closure member hydrostatic pressure is smaller than the bridge of the elastic Huckhol member, and is characterized by the fact that it means

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for locking the closure member in the shower position by hand.

The closure member is preferably a movable valve between a seat belonging to the tub circle and a seat belonging to the shower circle, and the elastic valve The return link is a spring. .

Thanks to the simultaneous presence of the

automatic retraction link of the locking link and means to lock the locking element in the shower position the changeover switch can be used manually at any water supply pressure. If the feed pressure is sufficient, will the switch is preferably used with automatic return. If, on the other hand, the pressure is low, the user can block the switch in the shower supply position, whereupon it remains in this position even when the power supply is switched off.

According to a preferred embodiment of the switch, the axis is rotationally fixed with an equiaxed one Connected nut, which is in engagement with the housing by an external thread, between a tub position and a Shower position is displaceable, and forms a stop for locking by hand for the actuator in the brewing position.

This training makes it possible to lock the switch in the shower position by hand by the Actuating button twisted in the sense that the nut at the same time moves with the locking valve from its original bath position to its shower position. Forms at the end of the stroke the nut has a stop for the actuation button and thus keeps the valve blocked on its "Brausenc-itz" «

The invention is explained below by way of example with reference to the drawing.

Pig. 1 is an axial section of one according to the invention Changeover switch of cylindrical shape, the closing valve shown in the position supplying the tub circuit is.

Pig. FIG. 2 is an axial section corresponding to the illustration of Pig · 1, with the valve in FIG

3 0 9 8 2 0/0236 _BAD original

Brow circle supply position is and locked by hand .

Fig. 3 is an axially sectioned partial view of a second embodiment of the system for locking by hand.

Fig. 4 shows in an axially sectioned

Partial view of a third embodiment of the locking system by hand.

F ± £. Figure 5 is a simplified schematic showing the locking front of the Pig · 4 embodiment.

Figs. 1 and 2 show a changeover switch with a

Housing 1 with an opening 2 for the respective supply of warm, cold or mixed water. This housing also has an opening 3 'which is provided with a collar 3a and the (not shown) pipe "shower" supplies, as well as an opening 4 to supply the (also not shown) alluvial "tub". A cylindrical valve 5 with an axial bore is placed on the end 6a of an actuating shaft 6 and fastened to it by a union nut 7. The valve 5 rests on the collar 3a and therefore supplies the tub circle through the opening 4 in this position. The diameter of the end 6a of the axis 6 is smaller than that of the rest of the axis, so that it has an annular shoulder 6b. Between this A perforated disk 8 is arranged on the shoulder and the valve 5, which acts as a stop for a return spring concentric to the axis 6 9 is used.

This spring is also based on an in

the housing 1 screwed in üinsatz 10, the seal between these two parts by two sealing rings 17, 18 is maintained. The insert 10 is extended by a cylindrical sleeve 22 and has an axial bore 14f through which the axis 6 passes. It also has a cylindrical chamber 11 which is connected through an annular opening 12 to an annular chamber 13 formed between the housing and the insert, which ^{opens into the "Wannenoff 11} 4". This chamber 11 also has an opening 15 , the circumference of which is beveled 16. This opening 15 connects the chamber with the inlet opening 2,

309820 / 023G BAD ORIGINAL

when the valve 5 is pressed by the peder 9 against the collar 3a of the "Brau-βenoffnung ^w 3 (Pig. 1). The chamber 11 then supplies the tub circuit through the outlet 4. The axis 6 is through a threaded hole 21 of the The bolt 20 screwed into the axis is firmly connected to an actuating button 19. The part of the axis 6 lying between the sleeve 22 and the bolt 20 has a hexagonal cross-section, as shown schematically at 23 ("hexagonal cross-section") Nut 25 * which has a bore with a corresponding cross section and an external thread 24 with which it engages with the insert 10.

The above switch works as follows: Before use, the valve 5 is pressed by the spring 9 against the collar 3a of the "shower opening" 3 and therefore supplies the tub circuit through the chamber 11 and the opening 4. The user has to feed the shower the choice between two options, depending on whether the feed pressure is normal (2 to 3 bar) or low (less than about 0.5 bar). In the first case, the changeover switch is preferably used with automatic return to the bath position. To do this, it is sufficient to pull on the actuating button 19. This train gives the axis 6 a translational movement and at the same time compresses the spring 9 so that the valve 5 rests against the beveled seat 16 (FIG. 2). The tub circuit is then shut off, and the water passes directly from the opening 2 to the rause the ^B supplying opening 3. The spring 9 is formed so that the Ruckholkraft exerted by it on the valve 5 noticeably smaller than that on the other side of Valve acting hydrostatic pressure at normal flow rate. The valve is therefore held on the "tub seat". When the hydrostatic pressure is less than the counterforce of the spring, it presses the valve against the opening 3. The water then enters the chamber 11 and supplies the tub circuit through the opening 4. In general, the value of this limit pressure is about 0.5 ^B ar.

If, on the other hand, the pressure available to the user is too weak to cope with the return force of the eder to keep his balance, he can still use the shower

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iiatztn. To do this, it is necessary to turn the actuation button 19 so that daaa the nut, 25 is unscrewed. As a result of the hexagonal center 23 of the axis, this is namely non-rotatable with the cutter 25 connected. The rotation of the actuating button 19 shifts therefore the nut 25 axially outwards, at the same time the Valve 5 of the mouth of the chamber 11 is approached. When the valve strikes the seat 16, the rotation of the actuation button stopped (see Fig. 2), and the so-off holder is of Hand blocked in the position that feeds the shower circuit. The rotatable nut 25 is then namely a locking attachment for the actuation button, so that the valve remains locked in this position even when the water supply is switched off · Um To return to the bathtub position, of course, you turn it Actuation button in the opposite sense.

The essential part of the switch according to the invention is to allow the use of the "shower circle ^N" at any value of the water supply pressure upper parts of buildings of great height or in a drought period. Furthermore, the simple construction of this switch results in a low cost price *

A second possible embodiment de

Changeover switch is shown in FIG. The axis 6 has a Durohmeseer threaded bore 30, which at one end into the nut 25 through a radial passage 31 of the same Durohmessers and at the other end through a groove 32 in the nut is extended. The bore contains a screw 33 « Long does not exceed the diameter of the axis 6, and what is shown in Fig * 3 in the non-hat engaging position.

This variant works as follows: when the hood is in the position shown in FIG is located, the axis 6 can be rotated independently of the nut 25. The arrangement formed by the valve, the axis and the actuation button can therefore not be blocked by hand, and the changeover switch works with automatic return. if When installing the changeover switch, the Speieedruok al

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To be able to, the installer can take apart the switch and introduce the screw 53 into the groove. The axis 6 is then rotatably connected to the nut 25, and the switch can be used with blocking by hand. It is sufficient, as in the first execution, to rotate the operating knob 19 in the sense which causes the decline of the nut 25 and the valve in the B _ra usenstellung blocked.

In this second embodiment, the choice between the two operating modes is made at the moment of installation.

Another expedient embodiment dee

switch according to the invention is in Pig. 4 and 5 shown. In this embodiment, the rotatable nut 25 is replaced by an annular shoulder 26 into which a pin 27 is inserted is. This pin engages in a bayonet-shaped groove 28 a, which is formed opposite in the Eineatz 10 and has an incision 29. This version works as follows:

When the valve closes the opening of the shower circuit, the pin 27 assumes the position 27a (Pig. 5). In order to lock the switch by hand in the shower position, pull the actuating button 19 until the pin is in the position 27b comes, whereupon the button is rotated a little until the pin blocks in the groove 29 in the locking position 27c will.

The switch according to the invention has as a result its simple structure has a low cost price. being The main advantage consists in the possibility of the switch with automatic on the same model at the same time Return and unite the changeover switch with locking by hand. -

The invention can of course be modified. So the shut-off valve can either be made of metal or be an elastomer, and it can be screwed or slidably attached to the axle or onto any of them be put on in a different way.

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Claims (4)

- O tent claims 1 Jf Manually operated switch for the flow of water for a bathtub-shower system with a housing (1) with a connection element (5), which is displaced between a position supplying the shower and a position supplying the tub, on a Axis (6), which can be given a translational movement, is attached and connected to a manual control element (19), wherein the closure member (5) can be brought into the shower position by the manual control element (19), an elastic member (9) the Closure member (5) returns to the bath position when the hydrostatic pressure acting on the closure member (5) is less than the pressure of the elastic return member (9), characterized by means for locking the closure member (5) in the shower position by hand. 2.) Changeover switch according to claim 1, characterized in that that the axis (6) rotatably with an equiaxed Nut (25) is connected, which is connected to the housing (1) by an external thread (24) in engagement, between a tub position and a shower position is displaceable and a stop for locking the actuating member (19) in the Forms shower position by hand. 3.) Changeover switch according to claim 2, characterized in that that the axis (6) has a polygonal section (23), which by an equiaxed nut (25) with a corresponding inner contour occurs. 4.) Changeover switch according to claim 2, characterized by that the axis (6) has a threaded hole (30), which in the cutter on one side through a corresponding radial passage (31) and on the opposite Side is lengthened by an anger (32), the Bore (30) and the groove (32) are designed so that they can receive a screw (33). i>.) Changeover switch according to claim 1, characterized in that that the axis has a pin (27) which in a guide groove (28) formed in the housing (1) between a tub position and a shower position slides, this groove (28) having an incision (29) for locking the Has pin (27) in the brewing position. 30982 0/0236