Sanitary shower

The sanitary shower head addresses the issue of friction and stiffness in existing designs by using a diaphragm-sealed valve mechanism with a rolling diaphragm to enhance ease of use and extend service life.

DE102024123589A1Pending Publication Date: 2026-02-19GROHE AG
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Patent Information

Application Number
DE102024123589
Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-08-19
Publication Date
2026-02-19

AI Technical Summary

Technical Problem

Sanitary shower heads experience reduced ease of use due to friction and stiffness caused by seals in the operating mechanism, which are necessary to prevent leaks in the valve system.

Method used

A sanitary shower head design featuring a fluid flow system with a diaphragm-based valve mechanism, where the diaphragm seals the guide to prevent fluid contact, eliminating the need for seals that cause friction, and utilizing a rolling diaphragm for smooth operation.

Benefits of technology

The design enhances user ease of use by reducing friction and improving the operational smoothness of the shower head, extending the diaphragm's service life and reducing maintenance intervals.

✦ Generated by Eureka AI based on patent content.

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Abstract

Sanitary shower (1), at least having: - a fluid guide (2) with an inlet (3) and at least one outlet (4, 5, 6); - at least one valve (7, 8) with a diaphragm (9, 10) for shutting off at least one drain (4, 5, 6); and - at least one actuating element (11, 12) for adjusting the diaphragm (9, 10), wherein the at least one actuating element (11, 12) is attached to the diaphragm (9, 10) and is movable in a guide (13, 14) between a closed position (15) and an open position (16), and wherein the diaphragm (9, 10) seals the guide (13, 14).
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Description

[0001] The present invention relates to a sanitary shower head, in particular for a sanitary fitting. Sanitary fittings serve to provide a liquid as needed, for example at showers, bathtubs, sinks or washbasins.

[0002] Sanitary shower heads are well-known, allowing the delivery of liquid, especially water, in various spray patterns, such as a normal spray, full spray, massage spray, rain spray, etc. To produce these different spray patterns, sanitary shower heads typically incorporate different spray patterns. To create a specific spray pattern, the liquid must be directed from an inlet to the shower head via a pipe system to one of the spray patterns. Valves are integrated into this pipe system for this purpose. Operating these valves usually requires a mechanism within the shower head that must be sealed against leaks. The seals used for this purpose can cause friction and thus stiffness in the mechanism. This reduces the ease of use of the sanitary shower heads.

[0003] The object of the invention is therefore to at least partially solve the problems described with reference to the prior art and in particular to provide a sanitary shower head that is easy to operate.

[0004] This problem is solved by a sanitary shower head according to the features of the independent claim. Further advantageous embodiments of the invention are specified in the dependent claims. It should be noted that the features listed individually in the claims can be combined with one another in any technologically meaningful way and define further embodiments of the invention. Furthermore, the features specified in the claims are further specified and explained in the description, which also presents further preferred embodiments of the invention.

[0005] This is aided by a sanitary shower head that has at least the following features: - a fluid flow system with an inlet and at least one outlet; - at least one valve with a diaphragm for shutting off at least one drain; and - at least one actuating body for adjusting the diaphragm, wherein the at least one actuating body is attached to the diaphragm and is movable in a guide between a closed position and an open position, and wherein the diaphragm seals the guide.

[0006] The shower head is specifically designed for use with a sanitary fitting. The shower head can be connected to the sanitary fitting, for example, via a hose and / or pipe. The sanitary fitting serves, in particular, to provide a liquid, especially water, as needed at, for example, showers, bathtubs, sinks, or washbasins. The sanitary fitting may include a mixing valve for blending cold and hot water to create a mixture with a desired temperature. The mixing valve may, for example, be a thermostatic mixer or a thermostatic mixing cartridge. The hot water temperature may be, in particular, a maximum of 90 °C, preferably 25 °C to 90 °C, and more preferably 55 °C to 65 °C, and / or the cold water temperature may be, in particular, a maximum of 25 °C, preferably 1 °C to 25 °C, and more preferably 5 °C to 20 °C.A sanitary shower head can be designed, for example, as a hand shower and / or a shower head. Its primary purpose is to dispense liquid or mixed water in the shower, bathtub, sink, or washbasin.

[0007] The shower head has a fluid flow system with an inlet for the fluid and at least one outlet for the fluid. The fluid flow system can be located, at least partially, within the shower head housing. The fluid flow system can act as a diverter, allowing the fluid to be directed from the inlet to different outlets, spray patterns, and / or spouts of the shower head. The fluid flow system can be made, at least partially, of plastic and / or metal, such as brass. The fluid flow system can be multi-part and / or have at least one channel for guiding the fluid. The fluid can flow through the shower head and / or the fluid flow system via this channel. The inlet can be connected (directly or indirectly) to the hose and / or pipe.The fluid supply can form a fluid inlet of the shower head or be connected to the fluid inlet of the shower head (fluid-conducting) via a fluid inlet channel of the shower head. The fluid inlet can be connected to the hose and / or pipe. The fluid can flow through the at least one outlet, particularly into the area surrounding the shower head. The at least one outlet can lead to at least one spray pattern and / or include at least one spray pattern. The at least one outlet can be connected, for example via at least one flow channel of the shower head, to at least one spray pattern, to at least one outlet of the shower head, and / or to at least one nozzle of the shower head (fluid-conducting).In other words, at least one outlet does not have to open directly into the vicinity of the shower head, but can be located within the shower head housing. The spray pattern allows the liquid to be dispensed in a specific spray pattern, for example, as a normal spray, full spray, massage spray, rain spray, etc. For example, the liquid flow can have 1 to 5 outlets, preferably 1 to 3. Each outlet can lead to at least one spray pattern. Each shower head can have at least one spray pattern per outlet.

[0008] The shower head comprises at least one valve with a diaphragm for shutting off the at least one outlet. The shower head can have at least one valve per outlet. For example, the shower head can have 1 to 5 valves, preferably 1 to 3 valves. The valves can be arranged circularly or on a circular path, for example around an axis of rotation of an actuating element and / or at the same angle around the axis of rotation of the actuating element. The at least one valve can be arranged in the shower head and / or in the fluid guide. Each valve has at least one diaphragm. The diaphragm consists at least partially of an elastic material such as rubber. The diaphragm can have a mounting collar, in particular a circumferential one, which is attached to the shower head or to the fluid guide. For example, the mounting collar can be attached in a clamping gap of the shower head or the fluid guide.

[0009] The sanitary shower head, or at least one valve, has at least one actuating element for adjusting the diaphragm. Each valve can have at least one actuating element. The actuating element can extend along a longitudinal axis, particularly a straight one, from a first longitudinal end to a second longitudinal end. The actuating element can have a length of, for example, 10 mm to 60 mm (particularly parallel to the longitudinal axis) and / or a diameter of, for example, 2 mm to 15 mm (particularly perpendicular to the longitudinal axis). The actuating element is attached to the diaphragm. In particular, the first longitudinal end of the actuating element is attached to the diaphragm. The actuating element is movable in a guide, particularly parallel to its longitudinal axis, between a closed position and an open position. The guide can be a linear guide and / or a sliding guide.The guide can be designed as an opening and / or in the form of a bore. The guide can have a round or square cross-section. The actuator can extend at least partially through the guide. The actuator can slide within the guide with its outer circumferential surface. The diameter of the actuator can (essentially) correspond to the inner diameter of the guide. The guide can be integrated into the shower head or the fluid channel. The at least one actuator can be movable in the guide in a radial direction with respect to the axis of rotation of the actuating element. In the closed position, the actuator presses the diaphragm, in particular against a valve seat, so that the valve is closed. When the valve is closed, no fluid can flow from the drain to which the valve is assigned.In the open position, the actuator does not press the diaphragm against the valve seat, so the valve is open. With the valve open, fluid can flow from the drain to which the valve is connected.

[0010] The valve's diaphragm seals the guide of the valve's actuator. In other words, the diaphragm separates the guide from a fluid-carrying area of ​​the shower head, the fluid channel, and / or the valve, and / or prevents contact between the fluid and the guide. Neither the guide nor the actuator (at least one of the actuators) is located in a fluid-carrying area of ​​the shower head. The diaphragm can separate the water-carrying area and / or a fluid channel of the shower head from a non-water-carrying area. The diaphragm, in particular, has no opening through which fluid can flow. Specifically, the shower head and / or the valve (at least one of the actuators) has no pilot bore and / or control bore. The diaphragm can only be exposed to or wetted with fluid from one side, especially during operation of the shower head.The membrane prevents liquid from escaping through the duct into the area surrounding the shower head.

[0011] The membrane prevents the guide of the at least one actuator from coming into contact with liquid, thus eliminating the need for a seal in the guide that would increase friction between the actuator and the guide during movement. This allows the actuator to move more smoothly, improving the ease of use of the shower head.

[0012] The diaphragm can be a rolling diaphragm. The rolling diaphragm is moved by the at least one actuator in a rolling motion, instead of simply stretching or compressing. This reduces the force required to adjust the diaphragm. The rolling diaphragm can have a rolling section with a deflection area. During the movement of the at least one actuator, the rolling section can roll on an outer circumferential surface of the at least one actuator. Due to the rolling motion, the rolling diaphragm is subjected to less stress than conventional diaphragms, which extends its service life and / or reduces maintenance intervals.

[0013] The rolling diaphragm can have a rolling radius of 0.5 mm to 5 mm. In particular, the deflection area of ​​the rolling section can have a rolling radius of 0.5 mm to 5 mm.

[0014] The actuating element can be at least partially rod-shaped.

[0015] The actuator can be positively attached to the diaphragm. In particular, the first longitudinal end of the actuator can be positively attached to the diaphragm. The first longitudinal end of the actuator can, for example, be spherical. The first longitudinal end of the actuator can be arranged or attached in a mounting recess of the diaphragm, in particular positively.

[0016] The actuator can be movable by an actuating element. The actuating element can be movable relative to the fluid flow, in particular by a user of the shower head and / or to open or close the at least one valve. In particular, the actuator can be adjusted by the actuating element into the closed position, in the direction of the closed position, into the open position, and / or in the direction of the open position. The actuator can hold the actuating element in the closed position and / or the open position. Alternatively or cumulatively, the actuating element can release the actuator so that it can be moved by the fluid pressure from the closed position to the open position or in the direction of the open position. The actuating element can contact the second longitudinal end of the actuator.

[0017] The actuator can be rotatable about an axis of rotation. In particular, the actuator can be rotatable relative to the fluid guide about the axis of rotation. The actuator can be rotatably attached to the shower head or the fluid guide.

[0018] The actuating element can have an eccentric control body for the actuator. The control body can, in particular, be designed eccentrically to the axis of rotation. The control body can have a control surface for the actuator, especially an outer one. When the actuating element rotates about the axis of rotation, the control surface can slide on the actuator or on the second longitudinal end of the actuator. The control body can be at least partially sleeve-shaped or tubular.

[0019] The actuator can prevent at least one actuator of a first valve from closing and can move at least one actuator of a second valve into the closed position. This can mean that the actuator releases the at least one actuator of the first valve, allowing the diaphragm to be moved into the open position or towards the open position by the fluid pressure, and simultaneously moves the at least one second actuator of the second valve into the closed position and / or holds it in the closed position. The actuator can be configured such that, depending on its rotational position, it releases one actuator of a valve (in particular, a single valve) and moves the actuators of all other valves into the closed position and / or holds them in the closed position.This means that the liquid can only be discharged via a single outlet and / or only in a single jet pattern.

[0020] The invention and its technical context are explained in more detail below with reference to the figures. It should be noted that the figure shows a particularly preferred embodiment of the invention, but that the invention is not limited to this embodiment. It shows, by way of example and schematically: Fig. 1: A sanitary shower head in a sectional view.

[0021] Fig. Figure 1 shows a sanitary shower head 1 in a sectional view. The sanitary shower head 1 includes a fluid guide 2, which is arranged in a shower housing of the sanitary shower head 1 (not shown here). The fluid guide 2 has an inlet 3, a first outlet 4, a second outlet 5, and a third outlet 6. The inlet 3 can be connected to a fluid source (not shown here), for example, via a fluid supply line. The fluid flows from the inlet 3 through an annular space 20 of the fluid guide 2 to a first valve 7, a second valve 8, and a (in Fig. The liquid can be supplied to the third (not visible) valve. Discharge of the liquid via the first outlet 4 can be controlled via the first valve 7, discharge of the liquid via the second outlet 5 via the second valve 8, and discharge of the liquid via the third outlet 6 via the third valve. The first valve 7, the second valve 8, and the third valve are arranged offset from each other by 120° about a rotation axis 18 of an actuating element 17 and are identical in design.

[0022] The valves 7, 8 each have a diaphragm 9, 10, to which an actuating element 11, 12 is attached. The actuating elements 11, 12 are rod-shaped and each extend along a longitudinal axis 22 from a first longitudinal end 25 to a second longitudinal end 26. The first longitudinal ends 25 of the actuating elements 11, 12 are spherical and each is positively engaged in a mounting recess 27 of the diaphragms 9, 10. The actuating elements 11, 12 are each mounted in a guide 13, 14, in which the actuating elements 11, 12 are movable along their longitudinal axes 22 between a closed position 15 and an open position 16. Fig. In position 1, the first actuator 11 of the first valve 7 is in the closed position 15, and the second actuator 12 of the second valve 8 is in the open position 16. In the closed position 15, the first actuator 11 presses the first diaphragm 9 onto a first valve seat 23, preventing liquid from flowing from the annular space 20 via the first outlet 4 into the surrounding area 21 of the shower head 1. In the open position 16, the second diaphragm 10 is lifted from a second valve seat 24 of the second valve 8, allowing liquid from the annular space 20 via the second outlet 5 into the surrounding area 21 of the shower head 2. The first outlet 4, the second outlet 5, and the third outlet 6 do not open directly into the surrounding area 21, but are each connected to Fig. 1 not shown jet formers of the sanitary shower 1 or the shower housing (liquid-conducting) connected.

[0023] The actuating element 17 is rotatably mounted on the sanitary shower head 1 or the fluid guide 2 about the axis of rotation 18. The actuating element 17 comprises a control body 19, which is sleeve-shaped and arranged eccentrically to the axis of rotation 18. The actuating elements 11, 12 bear with their second longitudinal ends 26 against a circumferential control surface 28 of the control body 19. Depending on the rotational position of the actuating element 17, the control body 19 releases an actuating element 11, 12 of a valve 7, 8, so that the respective actuating element 11, 12 can be adjusted to the open position 16 by a fluid pressure of the fluid in the annular space 20, and simultaneously, with its control surface 28, adjusts the actuating elements 11, 12 of the other valves 7, 8 to the closed position 15. Depending on the rotational position of the actuating element 17, one of the valves 7, 8 is open and the other valves 7, 8 are closed. Fig.1. The first valve 7 and the invisible valve are closed, and the second valve 8 is open.

[0024] The diaphragms 9, 10 each have a circumferential mounting collar 29, which is attached in a clamping gap 30 of the sanitary shower head 1 or the fluid guide 2. The mounting collar 29 extends through a plane that runs obliquely to the longitudinal axis 22 of the respective actuating body 11, 12. The diaphragms 9, 10 are rolling diaphragms with a rolling section 31. When the actuating bodies 11, 12 are adjusted between the closed position 15 and the open position 16, the rolling section 31 can roll on an outer circumferential surface 32 of the respective actuating body 11, 12. The rolling section 31 has a rolling radius 34 in a deflection area 33. The membranes 9, 10 seal the guides 13, 14 of the respective actuating bodies 11, 12 against fluid-carrying areas of the sanitary shower 1 or the fluid guide 2, so that no fluid can reach the guides 13, 14 and pass through the guides 13, 14 to the actuating element 17 or 12.Water can flow from the shower head 1.

[0025] The present invention makes the sanitary shower 1 easy to operate by a user. Reference symbol list 1 sanitary shower 2. Fluid routing 3 Inlet 4 first process 5 second process 6 third process 7 first valve 8 second valve 9 first membrane 10 second membrane 11 first actuating element 12 second actuator 13 first tour 14 second lead 15 Closed position 16 Disclosure 17 Actuator 18 Rotation axis 19 Control bodies 20 annular space 21 Surroundings 22 Longitudinal axis 23 first valve seat 24 second valve seat 25 first longitudinal end 26 second longitudinal end 27 Mounting recess 28 Control surface 29 fastening collars 30 clamping gap 31 Roll section 32 outer circumferential surface 33 Deflection area 34 Roll radius

Claims

[1] Sanitary shower (1), at least having: - a fluid guide (2) with an inlet (3) and at least one outlet (4, 5, 6); - at least one valve (7, 8) with a diaphragm (9, 10) for shutting off at least one drain (4, 5, 6); and - at least one actuating element (11, 12) for adjusting the diaphragm (9, 10), wherein the at least one actuating element (11, 12) is attached to the diaphragm (9, 10) and is movable in a guide (13, 14) between a closed position (15) and an open position (16), and wherein the diaphragm (9, 10) seals the guide (13, 14). [2] Sanitary shower (1) according to claim 1, wherein the membrane (9, 10) is a rolling membrane. [3] Sanitary shower (1) according to claim 2, wherein the rolling membrane has a rolling radius (34) of 0.5 mm to 5 mm. [4] Sanitary shower (1) according to one of the preceding claims, wherein the actuating body (11, 12) is at least partially rod-shaped. [5] Sanitary shower (1) according to one of the preceding claims, wherein the actuating body (11, 12) is positively attached to the membrane. [6] Sanitary shower (1) according to one of the preceding claims, wherein the actuating body (11, 12) is movable by an actuating element (17). [7] Sanitary shower (1) according to claim 6, wherein the actuating element (17) is rotatable about a pivot axis (18). [8] Sanitary shower (1) according to claim 6 or 7, wherein the actuating element (17) has an eccentric control body (19) for the actuating body (11, 12). [9] Sanitary shower (1) according to one of claims 6 to 8, wherein the actuating element (17) does not adjust at least one first actuating body (11) of a first valve (7) to the closed position (15) and adjusts at least one second actuating body (12) of a second valve (8) to the closed position (15).

Citation Information

Patent Citations

  • jet controlled SHOWER HEAD

    DE2503628A1

  • Hand-held shower head

    US4193553A