EP2778299A1 - Shower head - Google Patents

Abstract

The shower head (10) has a housing comprising a water inlet (12), a distribution chamber and a beam base (38) attached to a gripping section. The beam base and/or a chamber base (32) is connected with a base body (14) in a detachable manner by using screwing, lock connection, hinge connection or magnet connection. A ring wall (46) is connected with the beam base and connected with the base body in a detachable manner. The beam base is pre-tensioned in a release direction by a spring, and an internal thread is formed at a peripheral wall (36) of the beam base.

Description

The invention relates to a shower head with a housing, which has a water inlet and a distribution chamber and a jet bottom.

Such shower heads are known as parts of hand showers or on rods height adjustable showers or fixed shower heads.

Although shower heads are only filled with pure water, deposits build up on them over time, mainly consisting of lime. They affect the appearance.

Although it is possible to remove these deposits by cleaning agents, in particular acid-containing cleaning agents at intervals. However, this work is time consuming and not easy to perform at the place of use shower.

By the present invention, therefore, a shower head is to be created, which is easy to clean.

This object is inventively achieved in that the jet bottom of the shower head and / or a supporting this component is releasably connected to a housing base body of the shower head.

The fact that you can solve the radiant floor of the housing base body, you can lay the beam floor during cleaning as ergonomically the cheapest. You can also place the beam bottom in a vessel containing an acidic cleaning fluid. Finally, you can the jetbo-the but also put it in a dishwasher. The usual dishwashing detergents contain components that are suitable for the removal of deposits. From the dishwasher you get the beam floor also dry and stain-free back, and if the beam floor is polished, also reflective.

By cleaning the jet bottom at short intervals z. B. weekly, the shower head always has a good looking new look.

The measures necessary to obtain this advantage on the shower head are not expensive and can be miteinformen to a large extent when spraying the components of the housing, so that in addition to slightly higher costs for injection molds no additional costs incurred in the current production.

Advantageous developments of the invention are specified in subclaims.

A first development is characterized in that an annular wall is connected to the beam bottom, which is detachably connected to the base body.

This development makes it possible to simply position the beam base on the housing base body and set on this. Also, this type of attachment of the jet bottom does not affect the geometry of the distribution chamber, since the attachment of the jet bottom takes place radially outside the distribution chamber.

A second development is characterized in that the jet bottom is connected to a rear wall of the distribution chamber forming chamber wall which is detachably connected to the base body.

In such a shower head, the rear wall of the distribution chamber is removed together with the jet bottom and also cleaned. This is advantageous in view of keeping this back wall of deposits free.

A third development is characterized in that the jet bottom is detachably connected to the chamber wall.

With this development it is achieved that also the boundary walls of the distribution chamber are exposed during cleaning and are well freed from deposits.

The removal of the unit formed by the radiant floor and the rear wall of the distribution chamber can be carried out in a single operation and the decomposition of the subunit in the radiant floor and rear wall can then be carried out under more favorable ergonomic conditions. For reassembly of the subunit, the same applies mutatis mutandis.

A fourth development is characterized in that the releasable connection between the beam base and / or the component supporting it comprises a screw connection, a bayonet connection, a latching connection, a hinge connection, a latch connection or a magnetic connection.

These types of connection between the removable part of the shower head and the housing base can be easily realized and handled easily.

A fifth development is characterized in that the beam base and / or the component carrying it is made of a material resistant to rinsing agents, in particular machine rinsing agents.

With this embodiment of the invention it is achieved that the beam floor looks good even after frequent cleaning.

A sixth development is characterized in that the beam base and / or the component carrying it is made of a material resistant to acids.

This development also allows the cleaning of the jet bottom and / or a component carrying it with sharp acidic cleaning agents.

A seventh development is characterized in that the beam base and / or the component supporting it are resistant at high temperatures. These are temperatures to which objects are exposed in dishwashers, autoclaves or steam sterilizers in order to remove contaminants and / or kill bacteria, viruses and other microorganisms.

Thus, the shower head can also be used in environments where such contamination is expected.

An eighth development is characterized in that the detachable connection between the radiant floor and the base body is provided at the middle of the radiant floor.

This ensures that the detachable connection can optionally be achieved by a centrally carried by the beam bottom actuator body. This location is particularly accessible to the user.

A ninth further development is characterized in that the beam bottom is biased by a spring in the release direction and is held by an actuatable lock in the mounted position.

This development is in terms of good ergonomics of the release of the beam bottom advantageous because it is pressed after releasing the lock in a hand of the user. The removal of the beam floor can thus be done easily under one-handed operation even when the shower head is at a higher altitude.

A tenth development is characterized in that the lock comprises a Spreizlenkeranordnung.

With this development, one can ensure a high engagement force for locking at a small actuation force for locking.

Figur 1

einen mittigen axialen Schnitt durch eine Handbrause; und

Figuren 2 bis 4

Abgewandelte Brausenköpfe, bei denen die lösbare Befestigung des Strahlbodens am Grundkörper bei der Mitte des Brausenkopfes vorgesehen ist.

The invention will be explained in more detail by means of exemplary embodiments with reference to the drawing. In this show:

FIG. 1

a central axial section through a hand shower; and

FIGS. 2 to 4

Modified shower heads, in which the releasable attachment of the jet bottom is provided on the base body at the center of the shower head.

The hand shower shown in the drawing follows a generally designated 10 shower head and a connection part 12 with a connection thread for a flexible shower hose (not shown).

The shower head 10 comprises a central base body 14, which has a central support star 16. This carries over arms 18, a hub 20 which is provided with an internal thread. From the support star 16 runs in the drawing to the left an elongated curved feed pipe 22 away, the at his free end carries an O-ring 24. The O-ring 24-bearing end portion of the feed pipe 22 engages tightly into a stepped bore of the connecting part 12, in which a wire screen 26 is still shown.

In the threaded hub 20, a connection piece 28 is screwed, which has a matching thread. An O-ring 30 seals the outer surface of the connecting stub 28 against the inner surface of the hub 20.

At the lower end of the hub 20, a transverse chamber wall 32 is formed, which has at its radially outer end an axially returning mounting wall 34.

The mounting wall 34 has on its outer circumferential surface a thread which cooperates with an internal thread which is formed on a circumferentially extending mounting wall 36 which is integrally formed on the radially outer edge of a jet bottom 38.

The beam bottom 38 has seen from the outside slightly convex shape and is provided with a plurality of jet openings 40.

On the inside of the jet bottom 38 is an elastomeric membrane 42 is provided which has a plurality of hollow jet nozzles 44, each of which fits into one of the jet openings 40 and project slightly beyond them.

The underside of the chamber wall 32 and the top of the jet bottom 38 and the membrane 42 lying thereon delimit a distribution chamber which communicates with the jet nozzles 44.

The underside of the membrane 42 lies with its outermost edge portion on the upper side of the inner surface of the jet bottom 38 and is clamped with this by a circumferentially extending rib 46, which is formed on the underside of the chamber wall 32.

Radially further inboard, the underside of the chamber wall 32 carries another rib 48 extending in the circumferential direction.

Between the inside of the rib 48 and the end of the hub 20 extends a plurality of circumferentially equally distributed ribs 50, seen in the circumferential direction have the shape of flat right triangles, as shown in the drawing.

On the upper side of the base body 40, a cover part 52 is placed, whose basic geometry is approximately mirror-image to the basic geometry of the jet bottom 38.

The cover part 52 carries a handle 54, on which the shower can be handled.

The cover part 52 has an axially short peripheral wall 56 which cooperates for positioning purposes with a circumferential rib 58 which is provided on the upper side of the main body 14.

In the shower head described above, the beam bottom 38 is removable in two different ways:

On the one hand, you can unscrew it alone from the chamber wall 32. But you can also unscrew the entire radiating floor 38 and chamber wall 32 formed subunit from the supporting star 16.

In this case, one can pretend by constructive measures of the connecting thread, which opens the two threaded connections easier.

Are the threaded connections adjusted so that when turning the beam bottom 38 of this alone unscrewed, it can be placed after unscrewing in a saucer compartment or plate compartment of a dishwasher and rinsed with the dishes. He is then the dishwasher cleaned and taken shiny, as the dishes too.

If the threaded connections are set such that, when the jet bottom 38 is rotated, it is unscrewed together with the chamber wall 32, then this subassembly can be assembled in the dishwasher when it is only necessary to restore a clean outer surface of the jet bottom 38. If cleaning of the top of the jet bottom 38 and the bottom of the chamber wall 32 is desired, you can solve the screw between these two parts and put these parts separately in the dishwasher.

It is understood that the above-described possibility of simple disassembly of the shower head into a base body 14 and the beam base 38 or the sub-unit formed by the beam bottom 38 and chamber wall 32 is also advantageous if the cleaning of these parts not in a dishwasher but in a cleaning solution dissolving the deposits takes place.

For the releasable connections between the beam bottom 38 and chamber wall 32 and chamber wall 32 and support star 16 screw connections were described in the above-described embodiment. It goes without saying that you can choose others instead Can use without tools to open and close connections, in particular bayonet connections, snap-in connections, connections with manually operated locks, connections with adhesive surmountable forces z. B. magnetic connections.

The embodiments of the FIGS. 2 to 5 according largely to that FIG. 1 , Functionally forth corresponding elements are further provided with the same reference numerals and need not be described again in detail below.

According to the embodiment FIG. 1 had the beam bottom 38 on its peripheral wall 36 has an internal thread, with which it was screwed onto a thread 34 lying on the edge of the chamber bottom 32. In the embodiments of the FIGS. 2 to 4 the jet bottom 38 is only plugged with its peripheral wall 36 on the peripheral wall 34 of the chamber bottom 32, and at the center of the chamber bottom 34 are different mechanisms that provide a releasable connection of the jet bottom 38 with the chamber bottom 34 and thus the base body 16.

According to the embodiment FIG. 2 the connection between the beam bottom 38 and the chamber bottom 32 by four circumferentially distributed locking connections, which are formed by four equally circumferentially distributed circular arc-shaped locking grooves 60 on the inner surface of the hub 20 and four matching latching projections 62.

The locking grooves 60 have a rising from a lowest point to the inner surface of the hub 20 groove bottom. The latching projections 62 sit on the outside of parallel to the axis of the shower head or the hub 20 rods 64, which together with an upper ring portion 66 and a lower plate portion 68 form a holding cage 67 which is a structure through which water can flow. This is firmly connected via a hanging from the underside of the plate portion 68 pin 70 with the beam bottom 38. This can be z. B. by gluing or welding.

At the bottom of the jet bottom 38, a toggle-shaped grip portion 72 is molded at its center. This has the shape of a plate whose plane contains the axis of the hub 20.

If one wishes to remove the jet bottom 38 from the shower head, the rod cage is rotated on the gripping section 72 in a clockwise direction such that the individual latching projections 62 run up on the sloping bottoms of the latching grooves 60 and finally come to the inner surface of the hub section 20. Now, the beam bottom 38 can be pulled down by moving the gripping portion 72 of the hub 20, whereby the beam floor 38 is then released from the shower head 10.

Now, the beam bottom 38 can be cleaned, as described above with reference to FIG FIG. 1 already described.

To restart you put the beam bottom 38 simply on the bottom of the shower head 10, and if the latching projections 62 does not happen so accidentally in the locking grooves 60, rotates the deferred beam bottom 38 until the latching projections 62 are in the locking grooves 60 , which tactile is easily perceived.

Instead of the locking connection described above, one can also choose a bayonet connection, wherein the bayonet groove then has an axially parallel insertion and a circumferentially extending locking portion, as is known. In this case one must then make sure that the Beam bottom 38 is placed in the correct orientation on the shower head 10. It can be facilitated by beveling the ends of the insertion of the bayonet groove a last remainder of the centering.

The entire cage unit, which carries the latching projections 62 elastically displaceable, is injection molded from a resilient plastic material.

The described cage structure ensures that the inflow of water to the distribution chamber, which lies between the chamber wall 32 and the jet bottom 38, is still possible.

According to the embodiment FIG. 3 you have a similar cage unit 67, as in FIG. 2 is shown. Only the rods 64 are concavely curved in the unloaded state that the locking projections 62 do not engage in the locking groove 60, which is now formed as a circumferential groove.

The locking of this cage unit and thus of the jet bottom 38 on the shower head 10 is effected by forcibly actuating the bars 64 in the radial direction by a toggle lever arrangement.

The toggle lever assembly comprises two toggle levers 74, which are each connected via a film hinge 76 with an axially displaceable operating rod 78 and are connected via second company hinges 80 with a point on the inside of the bars 64.

The actuating rod 78 is displaceable by an actuated by a push button 80 adjusting device 82, which may have similar mechanical structure as the actuator for a ballpoint pen refill.

In FIG. 3 is shown on the left of the center line of the adjusting device 82 of the knee lever 74 in the position which it occupies when the actuating rod 78 is retracted. To the right of the centerline of the actuator 82, the toggle 74 is shown in a position in which it has urged the inside of the adjacent bar 64 to a horizontal position, thereby inserting its associated detent projection 62 into the detent groove 60.

It is understood that this representation is chosen for explanatory purposes only; in reality, the two toggle 74 always have the same position.

If desired, you can between the output ends of the toggle lever 74 and the upper wall of the base 16 is still a latched to the base compression spring 84, the in FIG. 3 indicated by dashed lines. This compression spring 84 is tensioned when the jet bottom 38 is pushed together with the cage unit 67 on the shower head. After this pushing the beam base 38 is locked by pressing the operating knob of the actuating device 82 once.

If you want to remove the beam bottom 38 again, press the actuating button of the adjusting device 82, whereby the latching projections 62 free again from the locking grooves 60, so that the compression spring 84 then can push off the beam bottom 38 of the main body 14, so that this then in the hand the user falls.

According to the embodiment FIG. 4 The releasable lock between the beam base 38 and the base body 14 comprises two pairs of permanent magnets 86, 88, each having a circular arc shape. The permanent magnets 86 are located on the ends of a support arm 90, which in turn is moved by a shaft 92 which is fixedly connected to the beam bottom 38.

Stand the permanent magnets 86, 88 so that each north pole and south pole of the two magnets face each other, so the pair of magnets generates a holding force that holds the beam bottom 38 securely on the body 14, even under the pressure of the upcoming water. If one rotates the shaft 92 on the handle portion 72, so the permanent magnets 86, 88 are less and less aligned, and if the shaft 92 has rotated by 90 ° (or earlier), you can deduct the beam bottom 38 from the base body 14, as between the Permanent magnets act only small forces.

For placing the beam bottom 38, you put this in any orientation on the body 14 and turns it. If the permanent magnets 86, 88 then come back into an aligned position, the beam bottom 38 is held securely again.

The embodiments of the FIGS. 2 to 4 is common that the beam bottom 38 can be easily removed again from the base body 14. However, as far as the releasable connection must be actuated by a finger, this is facilitated by the fact that the actuating element or engagement element for fingers or hand can be found in the middle of the shower head.

Claims (11)

Shower head with a housing, which has a water inlet (12), a distribution chamber and a jet bottom (38), characterized in that the beam base (38) and / or a component (32) carrying this is detachably connected to a base body (14) , Shower head according to claim 1, characterized in that with the beam bottom (38) an annular wall (46) is connected, which is releasably connected to the base body (14). Shower head according to claim 2, characterized in that the jet bottom (38) with a the rear wall of the distribution chamber forming chamber wall (32) is connected, which is releasably connected to the base body (14). Shower head according to claim 3, characterized in that the jet bottom (38) is releasably connected to the chamber wall (32). Shower head according to one of claims 1 to 4, characterized in that the detachable connection between the beam bottom (38) and / or this tragennden component (32) comprises a screw, a bayonet connection, a latching connection, a hinge connection, a latch connection or a magnetic connection , Shower head according to one of claims 1 to 5, characterized in that the beam base (38) and / or the component (32) supporting it is made of a material resistant to rinsing agents, in particular machine rinsing material. Shower head according to one of claims 1 to 6, characterized in that the beam base (38) and / or this supporting component (32) is made of a material resistant to acids. Shower head according to one of claims 1 to 7, characterized in that the beam base (38) and / or the component (12) carrying this are resistant at high temperatures. Shower head according to one of claims 1 to 8, characterized in that the detachable connection between the radiant floor (38) and base body (14) at the center of the jet bottom (38) is provided. Shower head according to one of claims 1 to 9, characterized in that the beam base (38) is biased by a spring (84) in the release direction and is held by an actuable lock (74-82) in the mounted position. Shower head according to claim 10, characterized in that the lock comprises a Spreizlenkeranordnung (74-80).

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