DE3043482A1 - Changeover tap for shower or bathtub - has leaf spring to bias control knob to centre and change valve to preferred setting when switched off - Google Patents

Abstract

A manually operated valve is used to change the water flow between the shower outlet (11) and the bath tub outlet (12). A rotary knob (2) with an internal eccentric shaft (21) moves the valve piston element (3) to the selected position. A leaf spring (22) acting on the inside of the control knob, returns the knob automatically to its centre position. By switching off the water flow to the tap, the valve element (3) is moved automatically to a preferred outlet position.

Description

Friedrich Grohe Armaturenfabrik GmbH & Co.

GRP - 396

Diverter valve

The invention relates to a changeover device for bathing facilities ο'like. with those specified in the preamble of claim 1 Features.

A changeover valve of this type is from the pamphlet DE-OS 27 39 196 known. The handling takes place in this facility by pressing a push button or pull button.

The invention is based on the object of providing a reversing valve which is provided with a rotary handle as a handle works safely at extremely low operating pressures and in which a changeover to each of the possible run-out positions can be made with the actuator.

This task is carried out by the characterizing part of the claim 1 has been solved. Further developments of the invention are specified in claims 2-4.

Due to the proposed design, an i. Vt a twist grip manageable and with very low fluid pressure, safe working when shut off

of the water inflow into a preferred outflow position automatically returning diverter valve can be produced. The valve can be arranged vertically or horizontally can be used. In the vertical arrangement, the return of the valve closure member can expediently with the aid of the Gravity, with a horizontal arrangement with a smooth-running return spring, as there are no stiff O-ring seals etc. are required in this area. The rotary handle can advantageously be covered by one on the housing The leaf spring held in the neutral center position can be held or returned.

An embodiment of the invention is shown in the drawing and is explained in more detail below. It shows

FIG. 1 shows a changeover valve in longitudinal section, installed in a mixer tap;

Figure 2 shows a section in plane II of the changeover .vent ils according to Figure 1.

In a battery housing 1, a valve sleeve 4 is arranged in a horizontal position in the mixed water channel 13 of the mixer tap. A valve closure member 3 is mounted coaxially to the valve sleeve 4 so as to be axially displaceable against a return spring 43. Perpendicular to the center axis is a recess in the Ventilverschlußglled 3: i1 formed ^ _{n e} i _n the eccentric pin 21 borders. The eccentric pin 21 is formed on a rotary spindle 23, which in turn is axially fixed but rotatably mounted in a head piece 24 that can be screwed into the battery housing 1. A rotary handle 2 is fastened in a form-fitting manner on the outer journal of the rotary spindle 23. The rotary handle 2 is held in a neutral central position by a spring 22. The spring 22 is designed as a leaf spring and on the one hand held positively in the outer area of the head piece 24 and engages with two mirror-image flaps 221 on a radially offset, parallel to the rotating spindle

trained lug 25 on the twist grip 2. Of course can also use other springs, such as spiral or coil springs, can be used.

In the position of the changeover valve shown in Figure 1 flows the mixed water located in the mixed water channel 13 through Radial slots 44 in the jacket of the valve sleeve 4 and passes from here axially into a bathtub outlet 12 and into the Bathtub. In this position, the diverter valve is in the preferred outflow position. The valve closure member 3 is pressed by the return spring 43 against a valve seat 42 on the shower outlet 11 so that the shower outlet is blocked is. If the valve closure member 3 is now turned with the twist grip 2 against the return spring 43 against guided a valve seat 41 on the bathtub spout 12, the back pressure in the shower outlet causes the valve closure member 3 remains in this position, while the twist grip 2 returns to the neutral central position by the spring 22. The return spring 43 can be designed to be very weak or, in the case of a vertical arrangement, only the Gravity for the return in the preferred outflow direction should be sufficient, since only the sliding friction in. the leadership of the valve closure member 3 can be overcome must and O-ring seals etc. are not required in this area are. If the inflow of mixed water is now shut off, the back pressure in the shower outlet 11 drops so that now by the force of the return spring 43 or the force of gravity Valve closure member 3 returned in the preferred outflow direction , i.e. the shower outlet 11 is shut off and the bathtub outlet 12 is opened. So regardless of Rotary handle 2 and the eccentric pin 21 a return of the Valve closure member 3 is guaranteed, the recess 31 is designed so that in the neutral central position of the rotary handle 2, the valve closure member 3 to the plant the valve seat 42 for the shower outlet 11 as well as the valve seat 41 for the bathtub outlet 12 can reach.

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If the diverter valve is in the non-preferred position

flow direction, so can of course without blocking the Water inflow by a corresponding rotation of the rotary handle 2, the valve closure member 3 also by hand in the preferred The direction of outflow can be returned.

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Claims (4)

Friedrich Grohe Armaturenfabrik GmbH & Co. GRP- 396 EXPECTATIONS M · y changeover valve for bathing facilities or the like, for switching the outflowing water in the bathtub or shower spout, one loosely connected to an actuating device and movable between two valve seats Valve closure member is provided, which both of Hand with the actuation device as well as by putting it down of the water supply automatically to a preferred one The outflow direction is adjustable, characterized in that a rotary handle (2) is provided as the actuating element, with which the valve closure member (3) is connected via a rotary handle (2) formed eccentric pin (21), which in a recess (31) corresponding approximately to the valve stroke length in the valve closure member (3) grips, can be actuated, the rotary handle (2) with the eccentric pin (21) after actuation is returned to a central position by a spring (22) and the recess (31) is arranged so that the Valve closure member (3) in this central position without moving the rotary handle. 3 (2) either on the first or on the second valve seat (41,42) can rest. ORIGINAL INSPECTED 2. Changeover valve according to claim 1, characterized in that the spring (22) is concealed by the rotary handle (2) and is held on the valve housing and with a radially offset the twist grip (2) formed lug (25) cooperates. 3. Changeover valve according to Claims 1 and 2, characterized in that that a double-lobed leaf spring is provided as the spring (22), which is positively locked on a head piece (24) of the housing is supported and the tabs (221) rest on both sides of the lug (25). 4. Changeover valve according to Claims 1 to 3, characterized in that that the automatic return to the preferred outflow position when turning off the water supply by gravity and / or by a return spring (43) acting on the valve closure member (3). • it ·