MECHANISM FOR THE DECREASE OF LIME DEPOSITS FROM WATER, WHICH FLOWS THROUGH A CHANNEL IN A SANITARY APPLIANCE

[0001] The invention concerns a mechanism for the decrease of lime deposits from water, which flows through a channel in a sanitary appliance, with at least in or at the flow throughable channel arranged permanent magnet.

[0002] It is well-known that by the arrangement by permanent magnets at the flow path by relatively hard water the deposit can be reduced by lime from the water. Partially it is also reported that permanent magnets can bring lime deposits already solitary at least partly back to the dissolution. Both the prevention and the subsequent dissolution already formed lime deposits are summarized here under the generic term “decrease”.

[0003] Examples of mechanisms, which permanent magnets contained and which described purpose serve, are in the DE 42 13 805 A1, the FR 26 88 012 A1, the DE 295 08 819 U, which DE or also the DE 87 17 348 U described 44 36 435 A1. In all these cases the questionable mechanism is inserted in a tubing or a tube piece outside of the sanitary fitting. It is in relatively large distance from the place, in which its effect would be most necessary, i.e. from the discharge range of the respective sanitary appliance. In addition these well-known mechanisms are to be installed relatively complicated arranged and complex.

[0004] A certain exception represents into the EP 0,502,890 B1 described mechanism. Here for the special case of a Luftsprudlers attached at a sanitary fitting the proposal is made manufacture certain elements of the Luftsprudlers from magnetic material in order to obtain so the deposit-decreasing effect within the Luftsprudlers. This measure is limited however exclusively to application within Luftsprudlern.

[0005] Task of of the available invention is it to be out-arranged a mechanism of the initially specified of the kind in such a manner that it is inexpensive simply to install and in particular thereby that it is able to fulfill a second function at the same time, for which so far with sanitary appliances a separate construction unit was used.

[0006] This task is solved according to invention by the fact that the permanent magnet is integrated in a hose-like part from elastomerem material, which is in the flow throughable channel anordenbar and so out-arranged that he forms with the wall of the flow throughable channel at least an air-filled chamber and in such a way as absorber for flow noises serves.

[0007] The thought according to invention consists thus of combining the mechanism for the decrease of lime deposits with a muffler how it in principle already admits is and in different execution form with sanitary appliances is used. Such mufflers are based on the principle that the flexible wall of a hose-like part under the influence of the sound produced by the flowing water anschwingt against an air cushion. These oscillations, under whose influence the air cushion is periodically compressed, represent a Energiedissipationsmechanismus, which leads to the desired sound proofing.

[0008] Becomes, as this is suggested according to invention, the permanent magnet (and/or the permanent magnets) into the hose-like part integrates, then no special retaining constructions are needed for it more. Also an additional space requirement for that or the permanent magnets does not develop practically. Generally or the area taken anyway by a muffler for it the available can be used anyhow within the sanitary appliances themselves (thus not only in the inlets to these sanitary appliances).

[0009] At all the permanent magnet takes no additional area then and no assembly expenditure develops if the permanent magnet in form of a powder is present, which is embedded in the material of the hose-like part.

[0010] Alternatively the permanent magnet can be assigned also as solid molded articles out-arranged and into a chamber, which is trained at the hose-like part in or.

[0011] The air cushions needed for the sound proofing can be obtained favourably by the fact that the hose-like part at its outside lateral surface exhibits a majority of ring-like projections/leads, which are trained as the sealing plant to the wall of the flow throughable channel. Since the hose-like part is installed regularly in “dry” condition, the desired air cushions remain in the chambers, which are formed between the ring-like projections/leads of the hose-like part and the lateral surface of the flow throughable channel.

[0012] Particularly an execution form of the invention is preferred, with which in the flow throughable interior of the hose-like part a structure is arranged, which swirls the flowing through water. The fact that a such turbulence increases the deposit-reducing effect of the permanent magnet is to and well-known for itself, so for instance also from the DE gennanten above 42 13 805 A1.

[0013] The swirling structure can be thereby an employment which is pushed in into the interior of the hose-like part. Particularly inexpensive is however that arrangement of the invention, with which the swirling structure is angeformt to the hose-like part einstückig.

[0014] A particularly important operational area of the invention consists of the fact that the hose-like part is trained as pushing in into the discharge channel of a sanitary fitting. Here the mechanism according to invention in both unfolds their functions their greatest possible effect. In addition here a suitable place is present for the accommodation of the mechanism according to invention in each sanitary fitting.

[0015] Same is valid for that arrangement, with which the hose-like part is trained as pushing in into the hollow grasp range of a Handbrause. Here according to invention planned the air-filled contribute chambers in addition to a thermal insulation, which protects the hand of the user, who seizes the grasp range, against to hot temperatures.

[0016] Further preferential attachment place for the invention is the interior of a shower hose.

[0017] Remark examples of the invention are more near described in the following on the basis the design; point figure 1 a first remark example of a mechanism to the avoidance of lime deposits, pushed in into the grasp range of a Handbrause; Figure 2 a second remark example of a such mechanism, likewise into the grasp range of a Handbrause pushed in.

[0018] Figure 1 shows a conventional Handbrause 1, which covers itself a curved grasp range 2 and to this following bell-shaped housing a 3 in the partial section. At the lower surface of the bell-shaped housing 3 is the shower ground 4 with the shower openings not recognizable in the design.

[0019] The grasp range 2 of the Handbrause 1 is out-arranged hollow and contains a channel 5, by which the water of a not represented shower hose the bell-shaped housing 3 and thus the shower ground 4 zuströmt. Into this channel a mechanism is pushed in, which carries altogether the reference symbol 6 and both for the absorption of flow noises and serves the decrease of lime deposits. This mechanism 6 is developed as follows:

[0020] A hose-like part of 7 from elastomerem material covers a majority of circular projections/leads 8, which rest in the assembly situation with their outside lateral surface against the inner surface of the channel 5 in axial distance from each other. In this way effected from circular chambers 9. there the assembly of the mechanism 6 in the Handbrause 1 in “dry” condition, is filled the chambers 9 with air between the grasp range 2 a majority develops for the Handbrause 1 and the hose-like part of 7. They remain this also in the enterprise of the Handbrause 1, in which the hose-like part of 7 is flowed through by water. The wall of the hose-like part of 7 turns out in particular within the range of the chambers 9 in oscillations. These oscillations take place against 9 air volumes included in the chambers, what leads in well-known way to an absorption of the flow noises.

[0021] Into the material of the hose-like part of 7 magnet material is stored in finely divided form, e.g. in form of a more or less coarse-grained powder. This magnet material serves in to and for itself well-known way to condition the flowing through water in such a way “” that lime deposits are reduced. Thereby in particular the danger of the blockage or contamination of the shower drillings in the shower ground 4 is reduced.

[0022] The effect of the magnetic particles contained in the hose-like part 7 is supported by a helical installation 10 in the water-flowed through interior 11 of the hose-like part of 7.

[0023] Figure 2 points a second remark example of a mechanism for the decrease of lime deposits and to the sound proofing, is similar to which that from figure 1. Appropriate part are from there by the same reference symbol plus 100 characterized. The mechanism 106 is pushed in into the same Handbrause 1, which is represented also in figure 1.

[0024] The mechanism 106 is to a large extent in the same way formed as the mechanism 6 enclosure by figure 1. that is, it likewise a hose-like part of 107, on whose exterior several circular projections/leads 108 from each other in axial distance are angeformt. Between the grasp range in this way again chambers 109, which remain filled with air also during the enterprise of the Handbrause 1 and in the way of the absorption of the flow noises described above to serve, form 2 of the Handbrause 1 and the hose-like part of 107 of the mechanism 106.

[0025] Differently than with the remark example of figure 1 however the magnets, which lead to the decrease of the lime deposit, are not in form of a powder or such a thing into the material of the hose-like part of 107 integrated. Rather are filled some the chambers 109 with magnetic material. It preferably concerns a molded article 111, which is inserted into the gaps between neighbouring ring-like projections/leads 108 of the hose-like part of 107.

[0026] Also the mechanism 106 exhibits an additional structure in the water-flowed through interior 111, which by the reference symbol 110 is marked and which serves turbulence of the flowing through water. With the remark example of figure 2 this mechanism is angeformt directly to the schlauchförmige part of 107.