Patent Publication Number: US-2012024988-A1

Title: Jet outlet element for sanitary fittings

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This is a Division of application Ser. No. 11/719,202, filed Sep. 26, 2007, U.S. Pat. No. 8,047,457, granted Nov. 1, 2011, which is the US national phase of international application PCT/EP2005/012195, filed Nov. 15, 2005, claiming the priority of DE application 102004056074.9, filed Nov. 15, 2004. 
    
    
     The invention relates to a so-called gushing jet showerhead for sanitary fittings. 
     Gushing showerheads serve to form a closed, freely falling, wide water jet preferably with a smooth flow. 
     A known gushing jet showerhead of this kind has a metallic housing that features a circularly cylindrical nozzle on its side for water inlet. The transition into the housing that gradually becomes wider and flater directly adjoins the connection nozzle. The housing is angular relative to the connection nozzle. In the transition between the connection nozzle and angular housing there are deflectors that divert the incoming water (DE 26 19 415). 
     Also known is a gushing jet showerhead (DE 25 54 723) with which the one boundary wall of the housing also starts from the connection nozzle and gradually becomes wider and flatter and features a kink. 
     In all known gushing jet showerheads, it is common that the interior of the housing, starting from the connection nozzle, gradually transforms into a slotted outlet opening. Furthermore, the already known gushing jet showerheads are independent fittings, which are directly connected to a house installation. 
     There are application cases in which gushing jets should be produced by commercial sanitary fittings. 
     The task of the invention is to provide a possibility of producing a clean gushing jet even under inconvenient spatial conditions. 
     To solve this task, the invention proposes a jet outlet element with the features mentioned in Claim  1 . This jet outlet element is especially intended as a part of a sanitary fitting meant for producing a gushing jet. 
     The jet outlet element contains two compartments, thus an inlet compartment in which the water inlet is guided. The jet is released from the jet outlet compartment, whereby also here the water outlet is formed as a slit. There is a flow rectifier between the two compartments, which rectifies the flow of water entering the inlet compartment, and makes it uniform. In this manner, it becomes possible to design the inlet in the inlet compartment independent of whether this is convenient for the formation of a gushing jet. This gives the designer more freedom in the construction of his sanitary fittings, since he can arbitrarily arrange the water inlet. 
     According to the invention, in a further development of the invention it can be provided that the inlet compartment of the outlet element features a flat rectangular cross-section in the flow direction. 
     In yet a further development of the invention, it can be provided that the jet outlet compartment features a flat rectangular cross-section in the flow direction. In this manner it is possible, to form the entire jet outlet element as a flat disc-like component that can be installed easily in sanitary fittings. 
     Both compartments can be located horizontally in the same plane. 
     In further development of the invention, it can be provided that the jet outlet compartment features a gradually reducing height. 
     According to a further feature of the invention, the jet outlet element can feature a bottleneck between the inlet compartment and the outlet compartment. The bottleneck can be formed by reducing the height of at least one of the two compartments and/or reducing the width of at least one compartment. 
     It is particularly convenient if the flow rectifier is located in the area of the bottleneck between the inlet compartment and the outlet compartment. 
     In order to further improve gushing jet formation, uniformly and optically, a stabilizing zone for the flowing water can be arranged down stream of the flow rectifier according to the invention. In this stabilizing zone, the initially rectified flow of water can once again be stabilized such that an optically appealing flow is achieved. 
     In particular, it can be provided that the stabilizing zone features a plurality of retarding elements that retard the flow of water. 
     The retarding elements can extend between the bottom and top of the jet outlet compartment, since the compartment is flat in overall design. For instance, the retarding elements can involve pins with circular cross-section. 
     The retarding elements can be arranged in at least one row, whereby the row runs transversely to the flow direction, thus parallel to the slit-type outlet opening. In particular it can be provided that die retarding elements are arranged in at least two rows that on the other hand are arranged again on gaps. The water flows around the retarding elements and comes again into a retarding element then flows again into the retarding element around which it flows again. 
     To ensure uniform distribution of water flow even for a very broad water outlet, it can be provided in a further development of the invention downstream of the flow rectifier and/or of the retarding elements that a flow former be provided. This can for instance comprise several stretched jet forming elements in the flow direction, disposed adjacently to one another, which divide the water flow in individual areas without partitioning these areas from one another. 
     In yet a further development of the invention, it can be facilitated that the edges of the water outlet run from the jet outlet compartment in one surface aligned obliquely to the flow direction. In particular, it can be facilitated that the one boundary wall of the jet outlet compartment, for instance the top, runs in the area of the water outlet at an angle to the flow direction. The course of this boundary wall located under an angle can be for instance rounded or angled in several steps. 
     In particular, it can be provided that the top edge of the water outlet is adjustable, for instance, it may be swiveled or displaced. The edges of the water outlet can also be provided with soft lips, whereby an elastomer, rubber or silicone comes in question as material. 
     According to the invention, the water inlet can be located perpendicularly to the plane of the top or bottom boundary wall of the inlet compartment. 
    
    
     
       Further features, details, and preferences of the invention are derived from the claims and the abstract, whose wording is based on reference to the content of the description, of the following description of a preferred embodiment of the invention and of the drawing. The figures show: 
         FIG. 1  shows a side view of a sanitary fitting possibly suitable for a gushing jet showerhead; 
         FIG. 2  also shows a sanitary fitting likewise suitable for a gushing jet showerhead; 
         FIG. 3  shows a section through a jet outlet element for a gushing jet shower head; 
         FIG. 4  shows a section through the jet outlet element of  FIG. 3 ; 
         FIG. 5  shows another section through the jet outlet element of  FIG. 3 ; 
         FIG. 6  shows a section or a view through a further jet outlet element; 
         FIG. 7  shows a cross-section through the jet outlet element of  FIG. 6 ; 
         FIG. 8  shows a section corresponding to  FIG. 7  with an embodiment modified relative to  FIGS. 6 and 7 , of a jet outlet element according to the invention. 
     
    
    
     The  FIGS. 1 and 2  show possible sanitary fittings that can be attached and used as common sanitary fittings, and which are meant and formed for producing a gushing jet. 
     The fitting of  FIG. 1  contains a fitting housing  1 , on whose underside a pipe  3  provided with an external thread  2  is attached. Lines  4  for the fitting pass through the pipe. The pipe  3  is fitted through an opening of a plate and is provided with the depicted nut from beneath. The fitting is fastened on the plate by rotating the nut. On the left side in  FIG. 1  an operating element in the form of a bar  6  is present through which the water outlet from the fitting is controlled by swiveling. A run-out housing  5  is attached to the top side of the fitting housing  1 , so that it features the form of a flat rectangular plate. From this outlet housing  5 , the water should for instance come out of the drawing plane forward as a gushing jet. 
     The fitting in  FIG. 2  features a somewhat more compact outlet housing  5 , on whose top side the operating element  6  formed as a rod is disposed. From the outlet housing  5 , water in the form of a gushing jet should come out of the still visible outlet opening  7 . 
       FIG. 3  depicts a jet outlet element that is meant for installation in the outlet housing  5  of the sanitary fitting according to  FIG. 1 . The jet outlet element can have the form of a two-part housing, whereby, for instance,  FIG. 1  depicts the plan on the section plane between both parts of the housing. The jet outlet element contains an inlet compartment  10 , into which the water to be issued flows in through an opening  11 . The jet outlet element also contains a jet outlet compartment  12 , from which the water is released through an outlet opening  24 . A bottleneck  13  is formed between the inlet compartment  10  and the jet outlet compartment  12 . The bottleneck  13  is formed through a reduction of the width of the flow cross-section. A flow rectifier  14  is provided directly in front of the bottleneck  13 . This contains several short partition walls disposed adjacently, whose longitudinal direction run in the flow direction and parallel to one another. The partition walls extend between the bottom and the top of the inlet compartment  10 . 
     Downstream of the partition point  13  the flow cross-section again enlarges significantly. A stabilizing zone  19  is formed at this point, in which the initially rectified water is stabilized in its flow. This stabilizing zone  19  contains two rows of retarding elements  15  transversely aligned to the flow direction. These retarding elements  15  are small round pins, which stretch between the bottom and the top of the compartment. The retarding elements  15  of each row are disposed equidistantly. The retarding elements  15  of a row are on gaps opposite the retarding elements  15  of the adjacent row. 
     Downstream of the stabilizing zone  19  formed by the retarding elements  15 , a flow rectifier  16  is formed which should then divide the stabilized water into stream filaments. The flow rectifier  16  contains several flow rectifier elements  17 , which are somewhat formed as droplets. Its width and distance is substantially greater than the width and distance between the retarding elements  15 . 
     Downstream of the flow rectifier  16  the jet outlet compartment  12  enlarges through an oblique shape of its sidewalls until they reach the water outlet  24 . 
     Through this successive connection of the flow rectifier  14 , then of the stabilizing zone  19  and finally of the flow rectifier  16 , it is ensured that a gushing jet with can be generated with a defined jet pattern. 
       FIG. 4  shows a partial cross-section through the jet outlet element of  FIG. 4 . Here one can see that downstream of the flow rectifier  16  the ceiling  20  of the outlet compartment  12  approaches the floor  21 , so that the gap between the bottom and top is reduced here. The actual water outlet  24  in form of a slotted opening is in a surface that does not run perpendicular to the flow direction through the outlet compartment  12 . The ceiling  20  of the jet outlet compartment runs rather in a curved shape  22 , so that the jet is likewise diverted downwards. The orientation of the jet outlet element is thereby assumed, as it appears reasonable for the sanitary fitting of  FIG. 1 , whereby the term “top and bottom” is defined by the arrangement of the fitting. 
       FIG. 5  again shows a section through the jet outlet element, and thus through the stabilizing zone with the retarding elements  15 . 
       FIG. 6  now shows an illustration similar to  FIG. 3  of a second jet outlet element according to the invention. While the jet outlet element of  FIGS. 3 to 5  is meant for the fitting according to  FIG. 1 , the jet outlet element according to  FIGS. 6 and 7  is meant for the fitting according to  FIG. 2 . Also, this jet outlet element can be designed as an element comprising the bottom and top, so that then  FIG. 6  would depict the plan of the partitioning point.  FIG. 6  can also be understood as section. 
     The jet outlet element of  FIG. 6  contains a jet inlet compartment  30 , into which the water enters through a water inlet  31 . This is only illustrated partially. The jet outlet element further contains a jet outlet compartment  32 , from which the water can flow out through a slotted outlet opening. Between both compartments  30 ,  32  a bottleneck  33  is provided, which is now formed through reduction of the height of the compartments, thus, through reduction of the height of the flow cross-section. This can be derived better from  FIG. 7 . A flow rectifier  34  is disposed in the bottleneck  33 , which is similar to the flow rectifier  14  of  FIG. 3  as a row of adjacently placed partition walls. 
     The upper boundary wall of the jet outlet compartment  32  is formed in the area of the outlet opening by a flap  35 , which is pivoted with the help of two lateral stub shafts  36 . The surface  36  of the flap  35  facing the jet outlet compartment  32  corresponds to the curved shape  22  of the top  20  of the jet outlet compartment  12  in the embodiment according to  FIGS. 3 to 5 . As one can derive from  FIG. 7 , this flap  35  can be swiveled through the bearing of the stub shafts  36  in order to be able to adjust the gushing jet. The outside edge of the flap  35  facing away from the stub shafts  36  protrudes somewhat in front of the jet outlet element, so that the user can hold it at that point and swivel the flap. 
     As one can also derive from the section of  FIG. 7 , the upper boundary wall  37  of the jet outlet compartment is likewise formed such that here the distance between the bottom and top  37  is reduced in flow direction. 
     The inlet into the jet outlet element of  FIGS. 6 and 7  is provided from a direction transverse to the flow direction; see the section of  FIG. 7 . 
     Although the top-edge change of water outlet, targeted by the jet from the outlet compartment  32 , occurs by swiveling, according to the embodiment of  FIGS. 6 and 7 , this top edge shows a possibility of how a change of the position of this edge can occur by displacing an orifice  40  with the help of the flap  35 ,  FIG. 8 . This orifice  40  is displaceable in arrangement in the water outlet area, from the jet outlet compartment  32 , transversely to the jet outlet direction. The displacement can occur in the double-arrow direction  41 . The lower face edge  42  of the orifice  40  is inclined so that when the orifice  40  is displaced in the area of the outlet jet, also the corresponding boundary wall of the jet outlet compartment  32  is angled.