EP3394353A1

EP3394353A1 - Hose guide device and sanitary pull-out-hose fitting

Info

Publication number: EP3394353A1
Application number: EP16815831.9A
Authority: EP
Inventors: Thomas Stulz; Bernd Kronenbitter; Steffen Erath; Stefan Berroth
Original assignee: Hansgrohe SE
Current assignee: Hansgrohe SE
Priority date: 2015-12-22
Filing date: 2016-12-16
Publication date: 2018-10-31
Anticipated expiration: 2036-12-16
Also published as: CN108474199B; CN108474199A; WO2017108613A1; DE102015226412A1; EP3394353B1

Abstract

The invention relates to a hose guide device for guiding a hose bend (2b) of variable length which hangs downward in a U shape and to a sanitary pull-out-hose fitting having such a hose guide device. A hose guide device according to the invention has a hose guide box (11) open at least at the top for the twist-proof accommodation of the hose bend (2b). The invention further relates to the use, e.g., for kitchen sink sprayers having a pull-out hose.

Description

Hose guide device and

The invention relates to a hose guiding device for guiding a variable-length hose bend hanging down in a U-shaped manner and to a sanitary pull-out hose Arnnatur having such a hose guiding device.

Sanitary extension hose fittings are common, for example, as kitchen fittings, in particular kitchen showers, which are equipped with an extendable hose, such as a shower hose, as a water outlet. The extensibility of the hose makes it easier to use and increases the ease of use of the fitting, especially in kitchen sinks and kitchen sinks. The hose hangs in a U-shaped bend under the fitting housing and is passed with its outlet end through the fitting housing and can be pulled out of a hollow outlet of the valve body and moved back into this. As a result, the U-shaped down hanging hose bend takes a variable length depending on whether and how far the hose is pulled out of the valve body.

The hose bend is typically located in a substructure under the fitting, eg below the pull-out hose fitting of a kitchen sink. Leaving it there without guidance can lead to various problems, such as hose damage due to abrasion, jamming of the hose bend to other components housed there, and relatively loud operating noise when moving the hose bend. As a remedy, it is already known to mount on the hose bend a hose sleeve-shaped surrounding pull-back weight whose gravity is to support the return movement of the drawn-out hose in its non-extended starting position. For this purpose, the pull-back weight is expediently mounted on a part of the hose bend which is moved as far as possible downwards when the hose is not pulled out when the hose is pulled out. Since the pull-back weight can not be drawn into the valve body, it limits the maximum Extension length of the hose to a little less than half the total length of the hose bend below the valve with retracted hose. Although the retracting weight can improve the problems mentioned above in the case of a leadless hose bend, there is still a need for further improvement.

The invention is based on the technical problem of providing a hose guide device of the type mentioned above and a sanitary extension hose fitting equipped therewith, which are further improved compared with the above-mentioned prior art, in particular with respect to the hose bend guide characteristic, and in particular make possible deadlocks of the hose guide To avoid hose bends and hose abrasion damage further and reduce operating noise when removing the hose and also require a relatively low installation costs and can be built relatively compact.

The invention solves this problem by providing a Schlauchführungsvor- direction with the features of claim 1 and a sanitary Auszugsschlauch- valve with the features of claim 15th

The hose guide device according to the invention has a Schlauchführungsbox, which is adapted to receive the U-shaped down hanging hose bend against rotation. For this purpose, the hose guide box is open at the top, so that the hose bend can protrude through the open top into the hose guide box. On all other pages, the box can be fully or partially open or closed as needed. Furthermore, the hose guide box can be cuboidal, but any other box shapes are alternatively possible, as long as it is ensured that the hose bend in the hose guide box can not twist or twist.

The characterization of the rotationally secured receiving means in the present case that the hose guide box prevents the U-shaped downwardly hanging hose bend from twisting by 90 ° or more about a substantially vertical axis or by turning by 180 ° or more twist. This results a very advantageous hose bend guide characteristic, by the possible clamping of the hose bend with adjacent components are just as reliably avoided as any damage due to abrasion of moving through the hose extraction movement hose to adjacent, fixed components. In addition, the operating noise of moving when pulled hose can be kept very low by receiving the hose bend in the hose guide box, and the hose guide device according to the invention requires only little installation effort. Preferably, the hose guide box limits the rotatability of the hose bend to at most a few angular degrees or to a degree which just allows unimpeded upward and downward movement of the hose bend when pulling out or moving back the hose.

Compared with the above-mentioned conventional hose guide device with retraction weight mounted on the hose, in the hose guide device according to the present invention, the maximum extension length of the hose is not limited to half the total length of the hose bend with the hose retracted. Rather, if required, the entire maximum hose arc length can be used with the exception of an approximately remaining short curvature region of the U-bend as extension length for the hose.

In a further development of the invention, the hose guide device has a guide weight roller which can be inserted in a rotatable manner into the hose bend. The guide weight roller supports the guiding function of the hose guide box for the U-shaped downwardly hanging hose bend, and by its weight force can provide a restoring force for moving the drawn-out hose back to its undressed home position. The guide weight roller preferably has a relatively high inherent weight, which then requires no further force sources, such as tension or compression springs and / or additional weights, to exert a sufficiently high, downwardly acting restoring force on the hose bend, ie the guide weight roller acts in this Fall as a spring and additional weight-free return means for the hose bend. In a further development of the invention, the hose guide device has a guide tension spring. This is on the one hand with the hose guide box and on the other hand coupled with the hose bend such that it exerts a return spring force in the direction of a predetermined hose arc starting position on the hose bend. The starting position may, in particular, be the position when the hose is fully retracted, ie not pulled out. For coupling the guide tension spring with the hose guide box, these two components can be arranged, for example, for the guide tension spring to be mounted on a floor or on a suitable location of a side wall of the hose guide box. In one embodiment of this measure, the guide tension spring is in a equipped with the guide weight roll hose guide device thereby coupled with the hose bend that it can be coupled to the guide weight roller. In this case, the guide weight roller acts as a transmission means for transmitting the return spring force of the guide tension spring on the hose bend. In one possible embodiment, the guide tension spring can be coupled to a rotary shaft with which the guide weight roller is equipped in a conventional manner and around which the guide weight roller rotates when the hose is pulled out or retracted. The return spring force in this case can assist the weight of the guide weight roller. In a further development of the invention, the hose guide box is executed at least in a lower region as a water collecting container below and laterally closed. This has the advantage that the Schlauchführungsbox can serve so far to catch any leakage water and collect, which emerges from a fitting to which an upper end of the hose bend is connected, or more specifically from hose connection connections of the valve and drips down in the region of the hose bend or at this runs down. In extreme cases, the hose guide box can be executed on all sides closed to its open top and serve in this case with their entire volume as a water catchment container.

In a development of the invention, the hose guide box, perpendicular to a vertical hose arc guide plane, has a clear width that is smaller than a transverse width. Extension of the hose bend is and / or smaller than a diameter of the guide weight roll, if the latter is present, and / or at least by a factor of 2, in particular by a factor of 7/4, is greater than a diameter of a hose forming the hose bend and / or at most by a factor of 4/3, in particular by at most a factor of 10/9, is greater than a width of the leadership weight role. In this case, a vertical hose bow guiding plane is to be understood as meaning a vertical plane in which the U-shaped hose bend should essentially remain guided. It is ensured by each of the first two dimensions of the clear width of the hose guide box in the relevant direction that the hose guide box fulfills the desired anti-rotation function for the hose bend. Through each of the last two dimensions, the hose guide box can be realized comparatively compact and especially with a relatively small width. This is made possible by the design of the box according to the invention, in which the box itself does not need to be much farther or horizontally deeper than the hose bend accommodated therein and the guide weight roll optionally inserted in it.

In one embodiment of this measure, the hose guide box has two side walls with guide-relevant wall regions which are essentially parallel to the hose arc guide plane and which are spaced apart from one another by this clear width. Under guide-relevant wall areas here are those areas of the side walls of the hose guide box to understand that are relevant to the guidance of the hose bend, i. which act as a stop limit for the hose bend, if it should try during the extension movement or return movement of the hose to twist excessively.

In a further embodiment, the two side walls have a vertical guide for the guide weight roller. The vertical guide guides the guide weight roller along its vertical upward and downward movement during withdrawal of the hose.

In a development of the invention, the hose guide box is designed to be open at least in an upper region on sides which intersect a vertical hose bend guide plane. To understand the concept of vertical hose bend Management level is referred to the above explanation. By thus making the hose guide box open at the respective side regions and not only at its top, material for the production of the box can be saved, and in many cases the assembly can be simplified and / or the accessibility to the hose bend can be facilitated.

In development of the invention, the Schlauchführungsbox a height between 20cm and 80cm. Thus, the hose bend along a correspondingly long extension length can be performed safely by means of Schlauchführungsbox. The hose guide box with these dimensions can be advantageously used in substructures e.g. be mounted below kitchen sinks, easily and subsequently. On the bottom and side closed design, the hose guide box can provide a water catchment container with a correspondingly large collecting volume available.

In a development of the invention, the hose guide box has a roller stop element on its open upper side, which secures the guide weight roller against an exceeding of a predetermined upper end position and thus against unintentional escape from the hose guide box.

In one development of the invention, the hose guide box on its open top on a bushing for the extension hose. This can additionally fix or guide the extension hose to the upper side of the hose guide box. If required, one bushing can be provided on the open upper side of the box for each of the two sheet halves of the hose bend.

In a further development of the invention, a hose coupling with at least two hose connections, of which a hose connection for connecting one end of the U-shaped downwardly hanging hose bend, is arranged on the hose guide box. Thus, the U-shaped down hanging hose bend is held with one end to the hose coupling and consequently to the hose guide box. Preferably, the hose coupling is located in an upper region of the hose guide box, eg at its open top. If the hose coupling is located at the top of the open top or front side of the box, the largest Part of the hose bend for the extension length of the hose can be used, since in this case there is the possibility to pull out the hose almost with his entire bow from the box upwards. Advantageously, it is also provided that the hose coupling is arranged vertically, ie with up or down facing ports, so that the hose bend can be coupled, for example, from below to the hose coupling.

In one embodiment of this measure, the hose coupling is held vertically adjustable on the hose guide box. The height adjustability may e.g. be implemented continuously or in multiple stages and allows e.g. When used for a pull-out hose of a sanitary fitting, a variable setting of the extension length or the arc length of the extension hose in a structurally simple manner by the at this hose coupling can be coupled, fluideintrittseitige end of the hose bend is adjustable in height relative to the box.

The sanitary extension hose fitting according to the invention is advantageously equipped with the hose guide device according to the invention.

Advantageous embodiments of the invention are illustrated in the drawings and will be described below. Hereby show:

1 is a schematic perspective view of a part of interest here

Kitchen equipment with a sanitary extension hose fitting Hose guiding device with hose not extended,

2 shows a sectional view through a hose guide box of the hose guide

Device along a line II-II of Fig. 1

Fig. 3 is the view of Fig. 1 with partially extended hose

4 shows the view of FIG. 1 with the hose almost completely drawn out; FIG. 5 shows the view of FIG. 3 for a variant of the hose guide device; 6 is a longitudinal sectional view of an upper part of a Schlauchführungsbox the hose guide device with maximum extended hose,

8 is a cross-sectional view corresponding to FIG. 2 for a variant of the hose guide box, FIG. 8 is a perspective view of a securing device of the hose guide device,

Fig. 9 is a cross-sectional view corresponding to Fig. 8 in an upper portion of

Schlauchführungsbox,

10 is a detail perspective view of a variant of the hose guide box with a hose coupling,

1 is a view corresponding to FIG. 10 in exploded view for a variant with multi-level height-adjustable hose coupling,

12 is a view corresponding to FIG. 1 1 for a further variant with multi-level height-adjustable hose coupling, Fig. 13 is a perspective view of a variant of the hose guide device of

1 with a continuously height-adjustable hose coupling to a hose guide box in a lower position of the hose coupling,

14 is a detail sectional view of a corresponding portion of the hose guide box of FIG. 13 with the steplessly height-adjustable hose coupling;

15 is the view of FIG. 13 in a raised position of the hose coupling,

FIG. 16 is a detail sectional view of FIG. 14 in the raised hose coupling position of FIG. 15; FIG. 17 is a detailed perspective view of the box area with the hose coupling of Fig. 13 and

FIG. 18 is a fragmentary longitudinal sectional view of an upper box portion of FIG.

13 at maximum extended hose. The sanitary Auszugsschlauch-fittings shown in the figures comprise in a conventional manner a fitting housing 1, here a dashboard housing a Küchenbrausen-Einhebelmischers, and a pull-out tube 2, which is retractable at a user-side end portion 2a of the valve body 1 and back into selbiges back. In particular, it may be so-called kitchen fittings with pull-out shower. The end portion 2a is performed in the example shown as a per se known shower spout, which connects in the non-extended hose state of Fig. 1 to a hollow outlet pipe 1 a of the valve body 1. From the end portion 2 a of the hose 2 is passed through the hollow outlet pipe 1 a and a passage in the rest of the fitting housing 1 and exits at a bottom of the fitting housing 1. From there, the hose 2 initially extends downward in a U-shaped downwardly hanging hose bend 2b, then forms a curved region or deflecting region 10 as a lower end of the hose bend 2b and returns from there upwards again to a hose connection 3 , which in turn is located at the bottom of the fitting housing 1 and through which the hose 2 is connected in a conventional manner to the valve, for example to an outlet of a built-in mixer housing 1 mixer cartridge.

In the exemplary embodiments shown, the fitting housing 1 is mounted in a conventional manner on a kitchen sink 4, which is inserted into a kitchen furniture plate 5. The kitchen sink 4, also referred to as a sink, sink or kitchen drain, and the kitchen furniture panel 5 are provided with a suitable mounting opening for mounting the fitting housing 1. The kitchen furniture panel 5 is seated on a furniture base 6, which leaves space under the kitchen sink 4 in a conventional manner for the hose bend 2b and for other, not shown here water-carrying lines or pipes. Only representative are schematically a cold water inlet connection 7, a hot water inlet connection 8 and a drain siphon 9 indicated.

When pulling out of the hose 2, the right in Fig. 1 hose portion of the hose bend 2b moves upward so that the hose bend 2b shortens with increasing withdrawal of the hose 2 and its deflection region 10 moves upward. This is illustrated in FIGS. 3 and 4, which show the extension hose 2 in two successively extended positions compared to the non-extended state of FIG. In the reverse return movement of the hose 2 from an extended state to a less extended or not extended state of Fig. 1, the hose bend 2b extends again, and its deflection region 10 moves back down.

The sanitary extension hose fitting shown is equipped with a hose guide device for guiding the U-shaped down hanging hose bend 2b. The hose guide device has an at least open top, optionally transparent hose guide box 1 1 for rotationally secured receiving the hose bend 2b. In addition, the hose guide device in the illustrated embodiment, an optional guide weight roller 12 which is inserted rotatably in the hose bend 2b. The tube sheet 2b thereby surrounds with its deflection region 10 a part of an outer periphery of the guide weight roller 12, i. essentially the lower half of the circumference thereof.

The Schlauchführungsbox 1 1 is executed in the examples shown cuboid or box-shaped, but it may alternatively be of any other shape, as long as it is ensured that it receives the hose bend 2b against rotation. The hose bend 2b extends through an open upper side 11a of the hose guide box 11 into the latter. Incidentally, the Schlauchführungsbox shown 1 1, for example, be performed closed on all sides with a bottom 1 1f, two opposite main side walls 1 1 b, 1 1 c and two narrow sides 1 1d, 1 1 e. As a result, it can act as a water catchment, wherein it accumulated water overflows only when the water level reaches the open top 1 1 a. This prevents leakage water, eg due to a leak in the hose connection 3 leaking or licking out of the fitting housing 1 and drips down or runs along the hose bend 2b down, passes unhindered into the furniture base 6 and spreads there. With its bottom 1 1 f, the box 1 1 is mounted on a bottom plate of the base 6, wherein it can of course also be mounted in another way at the desired location, for example on a side wall of the substructure. 6

In alternative embodiments of the invention, only a lower portion of the hose guide box, which does not reach up to the top, designed in this way as a water collecting container below and laterally closed. These include, for example, variant embodiments in which, as a modification of the hose guide box 11 shown, the main side walls 11b, 11c are perforated in an upper area adjoining such a closed lower area and / or one or both narrow sides 11d, 1 1 e perforated in such an upper area or omitted entirely, ie not up to the top 1 1 a pulled up, are. In further alternative embodiments of the invention, the function of the hose guide box as a water catchment container is completely dispensed with, for example by omitting one of the two narrow side walls 11d, 11e or at least one of these two walls 11d, 11e to 12b to the bottom 1 1f perforated is executed or the box 1 1 is executed without the bottom 1 1f down open.

As can be seen in particular from FIG. 2, the hose guide box 1 1 perpendicular to a vertical hose arc guide plane E _{v has} a clear width W which is smaller than a transverse extent Q of the hose bend and smaller than a diameter D of the guide weight roller 12. This ensures that the hose bend 2b and with it the guide weight roller 12 in the hose guide box 1 1 can not rotate arbitrarily, in particular not at an angle of 90 ° or more. The tubular sheet guiding plane E _v is here defined as the plane in which a longitudinal center plane of the hose bend deflection region 10 should preferably lie, wherein slight deviations from this exact desired position in the direction of rotation and in the transverse offset direction can be easily admitted, without this being the desired Anti-rotation function of the hose guide box 1 1 impaired. Therefore, the narrow sides 1 1d, 1 1 e of the box 1 1 cross this vertical tubular sheet guiding plane E _v , while the main side walls 1 1 b, 1 1 c parallel to this plane Ε _ν run. By the transverse extent Q of the hose bend 2b its maximum transverse extent is meant, which it assumes in its deflection region 10 in the example shown. The two main side walls 1 1 b, 1 1 c consequently contain wall regions which are relevant for the guidance of the hose bend 2b and which are spaced apart from one another by the inside width W.

As can be further seen from FIG. 2, in this embodiment the hose bend transverse extent Q is larger by approximately the diameter of the hose 2 than the diameter D of the guide weight roller 12, wherein the hose 2 is approximately half its diameter in a circumferential guide groove 12a of the guide weight roller 12 is located. In an alternative example, the hose bend transverse extent Q essentially corresponds to the diameter D of the guide weight roll 12, in which case the hose bend 2b on the outside is approximately flush in the circumferential guide groove 12a of the guide weight roll 12.

In the case shown, a width B of the guide weight roller 12 is slightly larger than a diameter d _{s of} the tube 2 and only slightly smaller than the inside width W of the box 1 first This means that, on the one hand, the hose bend 2b with the guide weight roller 12 is accommodated freely in the box 11 and, on the other hand, the hose bend 2b with the guide weight roller 12 has only a relatively small clearance in the box 11. In other words, the hose bend 2b and the guide weight roller 12 can only slightly twist in the hose guide box 11, for example at most by about 5 °, and move only slightly in the transverse direction perpendicular to the hose bend guide plane E _v . Specifically, it can be provided that the clear width W of the box 1 1 is at most a factor of 2, in particular at most a factor of 7/4, greater than the diameter of the tube 2, ie W <2-d _s or W <( 7/4) -d _s . Alternatively or additionally, it may be provided that the clear width W of the box 1 is at most a factor of 4/3, in particular at most a factor of 10/9, greater than the width B of the guide weight roller 12, ie W <(4/3 ) -B or W <(10/9) -B. This can be a particularly compact design of the box 1 1 realize.

Furthermore, it can optionally be provided that the horizontal width of the hose guide box 1 1 parallel to the hose sheet guide plane E _v only slightly larger than that Transverse extent Q of the hose bend 2b and the diameter D of the guide weight roller 12 is, as in the example shown. In this case, the box 1 1 also limits sideward movements of the hose bend 2b parallel to the guide plane E _v to a correspondingly narrow range of motion. In addition, this also contributes to a very compact construction of the box. The guide weight roller 12 has a box 1 1 supportive hose guiding function by stabilizing the shape of the hose bend 2b in particular in the deflection region 10 and holds the hose bend 2b under bias by its weight.

Depending on requirements and application, the hose guide box 1 1 is designed in a desired height. This may for example be between 20cm and 80cm, advantageously in adaptation to the particular installation conditions and / or to the height difference of the hose bend 2b between undressed and maximum extended hose state. In this case, the height change of the hose bend 2b is half the size of the instantaneous extension length of the hose 2, since each of the two halves of the hose bend 2b contributes to the extension length. Fig. 3 shows the hose 2 in an intermediate position in which the hose bend 2b has lifted relative to the non-extended hose state of Fig. 1 by an intermediate height H _z . This results in a twice as long extension length 2Ή _{Ζ of} the front Schlauchendbereichs 2a. Fig. 4 shows the situation with almost completely drawn-out hose 2. The hose bend 2b has thereby raised by a height H _M , again with twice as long extension length 2Ή _{Μ of} the front Schlauchendbereichs 2a. This illustrates the advantageous property of the hose guide device according to the invention that the hose extension length can contribute much more than half the length of the hose bend 2b in the non-extended hose state of FIG. 1, in contrast to the above-mentioned conventional hose guide devices with pull-back weight.

In alternative embodiments of the invention, the guide weight roller 12 is dispensed with. The tube sheet 2b is then added without this in the Schlauchführungsbox 1 1. This may be expedient in cases in which the hose bend 2b itself has a comparatively high weight or for other reasons has to be adapted to the weight-induced guidance and retraction aid of the guide weight roller 12 can be dispensed with.

In a further alternative embodiment of the invention, as shown in Fig. 5, the hose guide device includes a guide tension spring 13 which is so coupled with the Schlauchführungsbox 1 1 on the one hand and the hose bend 2b on the other hand, that they return to the hose bend 2b a return spring force in the direction a predetermined tubular sheet starting position exerts, for example, in the direction of the non-extended hose position corresponding to FIG. 1. For this purpose, the guide tension spring in the exemplary implementation of FIG. 5 is coupled on the one hand to the bottom 11f of the hose guide box 11 and on the other hand to the guide weight roller 12, which thus acts as a transmission means for transmitting the restoring spring force of the guide tension spring 13 to the hose bend 2b. For this purpose, the guide tension spring 13 is advantageously coupled to a rotational shaft 12b of the guide weight roller 12, preferably on both sides of the substantially cylindrical guide weight roller body. The spring force of the guide tension spring 13 supports the weight of the guide weight roller 12 and the weight of the hose bend 2b to facilitate retraction or retraction of the hose 2.

In a further, not shown embodiment of the invention eliminates the guide weight roller, and the guide tension spring engages directly on the hose bend 2b. This can for example be realized in that the guide tension spring passed through the hose bend 2b and on both sides of the bottom 1 1 f or at a lower portion of the box side walls 1 1 b to 1 1 e is set. In this case, the guide tension spring without the guide weight roller acts as a hose retracting aid. In addition, it provides by its biasing effect on the hose bend 2b as a supplementary hose guide element.

In the embodiments of FIGS. 1 to 6, a further optional measure of the invention can be realized, namely the placement of a special safety device 14 on the open top 1 1 a of the hose guide box 1 first This can be seen in greater detail from the longitudinal sectional view of FIG. 6, and FIG. 7 shows the securing device 14 in a perspective view before it is mounted on the box upper side 11a. As can be seen from Fig. 7, the safety device 14 in this exemplary embodiment has a frame-like shape, which is adapted to the dimensions and shape of the open box top 1 1 a so that it can be mounted on this, preferably by means of clip connections clipped, alternatively by means of another conventional fastening technique. The frame-shaped securing device 14 includes two parallel frame webs 14a, 14b corresponding to the upper edge of the two box main sides 1 1 c, 1 1 b. The two frame webs 14a, 14b are connected to each other via two spaced-apart, U-shaped bracket parts 14c, 14d, from the means give! in each case a T-shaped retaining part 16a, 16b projects obliquely downwards and inwards in the assembly position, ie in the direction obliquely downwards toward one another. The two T-shaped retaining members 16a, 16b together form a roller stop member 16, which secures the guide weight roller 12 against exceeding a predetermined upper end position, as shown in Fig. 6.

When pulling out the hose 2, the guide weight roller 12 in the box 1 1 can thus only up to the maximum position shown in Fig. 6 reach the top, in which it comes against the two T-shaped retaining elements 16 a, 16 b to the plant, more precisely said against its lower transverse webs, the length of which is preferably equal to or at most slightly smaller than the width B of the guide weight roller 12. The roller stop member 16 thus prevents further withdrawal of the tube 2 and thereby possibly resulting getting out of the guide weight roller 12 out of the box 1 1 and thus also a possible dropping out of the guide weight roller 12 from the box 1 1 and from the hose bend 10. At the same time can be determined with the thus configured roller stop member 16, the maximum extension length of the hose 2. The described oblique course of the T-shaped retaining elements or stop members 16a, 16b is preferably chosen so that they extend with its central web approximately in a respective radial line of the guide weight roller 12, ie approximately perpendicular to the tangential direction of the relevant attachment point of the roller 12, as from Fig. 6 can be seen. This is an optimal transmission of occurring on impact forces lent. A further contributory factor here is that the two T-shaped stop parts 16a, 16b are positioned symmetrically to the vertical transverse center axis of the guide weight roller 12. located. Conveniently, the U-shaped bracket members 14c, 14d be designed to be elastic, so that a resilient, soft stop for the guide weight roller 12 is given to the roller stopper member 16.

On its left side in the figures, the securing device 14 has a bushing 15 with a vertical through-opening in the mounting position. By means of the grommet 15, the extension hose 2 can be additionally guided or fixed in position on the upper side 11a of the hose guide box 11 by passing the left-hand half-tube in the figures through the grommet opening formed by the grommet 15. In the example shown, the bushing 15 is realized as an open sleeve with an insertion opening 15a, through which the extension hose 2 can be inserted laterally into the bushing 15 during assembly of the securing device 14. This saves an axial insertion of the extension tube 2 in the grommet 15th

On the side remote from the grommet 15, the securing device 14 has a narrow-side frame web 14e and a main-side frame web 14g, which are connected to one another via a material-weakened web transition region 14f functioning as a film hinge. In the position shown in FIG. 7 prior to assembly, the main-side web part 14g extends in extension of the narrow-side web part 14e, thereby leaving open an insertion opening 18 for the pull-out hose 2 between the two web parts 14e and 14g on the one hand and the main web part 14a on the one hand. Through the right half of the Auszugsschlauchbogens 2b can be inserted into the frame-shaped securing device 14 through the insertion opening 18, when the securing device 14 is mounted on the box 1 1. Subsequently, the main-side web portion 14g can be folded at 90 ° on the film hinge 14f and fixed with a mounting end 14h on a corresponding fastening element 17, which is provided at the facing end of the main-side web portion 14a and the U-shaped bracket member 14d. Preferably, the attachment may in turn be realized as a clip connection, alternatively as another conventional detachable connection. For this purpose, the two fastening parts 14h and 17 are designed suitably, for example as corresponding clip parts. 8 and 9 show a Ausführungsvahante with modified in their design hose guide box 1 1 '. In this hose guide box 1 1 ', the two opposing main side walls 1 1 b, 1 1 c in local areas by corresponding inward folds local constrictions through which their inside width W is narrowed there to approximately the width B of the guide weight roller 12. In this way, the guide weight roller 12 in the corresponding transverse direction or with respect. A rotation about a vertical axis parallel to a longitudinal axis of the Schlauchführungsbox 1 1 'quasi free of play in the Schlauchführungsbox 1 1' out.

Alternatively, or as shown in addition to the Falzverengungen, the two main side walls 1 1 b, 1 1 c in a respect to the outer narrow sides 1 1 d, 1 1 e middle area a vertical guide 20 for the guide weight roller 12. In the example shown, the vertical guide 20 is defined by a respective vertical groove 21 on the inside of each of the two main side walls 1 1 b, 1 1 c, wherein each of the two vertical grooves 21 is formed by two horizontally spaced guide webs on the Innensei- te of the respective Main side wall 1 1 b, 1 1 c protrude inward. Correspondingly, the guide weight roller 12 is provided on both sides with two axle stubs 22 which engage in the vertical guide grooves 21. In this way, the guide weight roller 12 is guided safely and virtually free of play in its vertical upward and downward movement while at the same time rotating about its central axis passing through the axle stub 22 when the hose 2 is pulled out or moved back again.

As can be seen in the sectional view of Fig. 9, in this embodiment, instead of the securing device 14, a securing device is provided which includes a roller stop member 16 'in the form of a locking pin, which is preferably formed of an elastic rubber material and by associated bolt passage openings in the upper region of the two Main side walls 1 1 b, 1 1 c is inserted therethrough. Again prevents the roller stop member 16 'an undesirable, too far pulling out of the tube 2 and thereby causing getting out of the guide weight roller 12 from the Schlauchführungsbox 1 1'. At the same time, the roller stop element 16 'in turn defines the maximum extension length of the hose 2. Also in the Ausführungsva antennas of FIGS. 8 and 9, as in the already mentioned variants, the hose guide box 1 1 'as desired on its underside, ie its bottom area, be closed or open. The attachment of the hose reel box 1 1 ', as shown, via ball-joint fasteners 23, which with a sliding block 23 a, which may be, for example, a nut, secured against rotation in a respective vertical groove 28 on the narrow sides 1 1 d, 1 e of the hose guide box 1 1 'can be inserted and held and have a mounting flange 23 b, with which they can be fixed to an adjacent mounting wall, eg a wall of a substructure of a kitchen sink, by screwing, gluing or the like. In variable orientation.

In an embodiment variant shown in FIG. 10, a hose coupling 24 is arranged on the hose guide box 11 ', preferably on the open upper side of the hose guide box 11'. The hose coupling 24 has at least two hose connections 24a, 24b. At one of these hose connections, here at the hose connection 24a, the U-shaped downwardly hanging hose bend is connected to one end. This is an alternative to connecting this hose end to the hose connection 3 on the underside of the fitting housing 1 in the connection variant shown in FIGS. 1 to 7. To the hose connection 24b of the hose coupling 24, a pipe or hose piece can then be connected, which leads to a sanitary fitting housing, such as the fitting housing 1, or to any other water or fluid supply connection. The U-shaped down hanging hose bend is in this case with this Schlauchendbereich completely in the hose guide box 1 1 ', so that there is no need guide means for taking out the hose bend in this end of the hose guide box 1 1'.

In an embodiment variant shown in Fig. 1 1, the hose coupling 24 is stepped height adjustable on the Schlauchführungsbox 1 1 'held. This is realized in this embodiment by using one or more spacer sleeves 25, one or more of which, as shown in FIG. 11, can be serially inserted between the hose coupling 24 and the top of the hose guide box 11 '. For this purpose, the respective spacer sleeve 25 is two-stage with a narrower sleeve portion 25a and a further sleeve portion 25b executed. With its narrower sleeve section 25a, it can be inserted into the further sleeve section 25b of an adjacent spacer sleeve 25 or into a coupling receiving opening 26 on the open upper side of the hose guide box 11 '. Depending on requirements, the hose coupling 24 can be inserted directly into the coupling receiving opening 26, or one or more of the spacer sleeves 25 are interposed. In this way, the corresponding end of the U-shaped down hanging hose bend 2b of the extension hose 2 in a step variable height at or above the hose guide box 1 1 'by connecting to the hose coupling 24 are held. This allows correspondingly a variable adjustment of the remaining for the extension tube 2 extension length.

Fig. 12 shows a variant of the embodiment of Fig. 1 1, in which the spacers 25 are designed as the only difference slotted. Specifically, the respective spacer sleeve 25 has a continuous axial slot 25c, which is dimensioned in its measured in sleeve circumferential direction width so that the extension tube 2 can be inserted into the respective spacer sleeve 25 radially from the outside through the axial slot 25c in the spacer sleeve 25. This avoids the need to insert the extension tube 2 axially through the spacer sleeve 25 and thereby facilitates subsequent attachment of the spacer sleeve 25 with already connected to the hose coupling 24 extension hose, without having to dismantle the latter. The spacer sleeve 25 only needs to be applied laterally to the portion of the hose 2 led out of the box 11 ', whereby the hose 2 passes through the slot 25c into the spacer sleeve 25, after which the spacer sleeve 25 slides down into the coupling receiving aperture 26 or is inserted into an already inserted spacer sleeve 25.

In one embodiment variant illustrated in FIGS. 13 to 18, the hose coupling 24 is infinitely height-adjustable on the hose guide box 1 1 '. For this purpose, the hose coupling 24 is held on a spacer rod 29, which is inserted in the left in Fig. 13 to 18 vertical groove 28 outside the respective narrow side 1 1 e infinitely adjustable in height. By means of a provided in the lower part of the spacer rod 29 Feststellschraubverbindung 27, the spacer rod 29 in a respective desired altitude of the hose coupling 24 to the hose guide box 1 1 'are set. For this purpose, the vertical groove 28 is slit-shaped open toward the outside, and a screw extension of the spacer rod 29 protrudes through this slot opening outwards, so that a nut can be screwed, in the case shown in the form of a threaded Feststellrades. The vertical groove 28 serves at the same time for stepless height adjustment and for fixing the fastening elements 23 for mounting the Schlauchführungsbox 1 1 ', for example, on the bottom and side walls of a kitchen sink substructure.

FIGS. 15 and 16 show the spacer bar 26 together with the hose coupling 24 in a higher position, which is raised vertically relative to the vertical position in FIGS. 13, 14, 17 and 18, in which the extension length of the extension hose 2 is correspondingly shortened.

In addition to the embodiment of FIGS. 13 to 18, a bushing 15 'is optionally provided on the box upper side on the right side of the box in the figures as a fixing or guiding aid for the pullout hose 2, i. for the discharge-side hose area. In addition, instead of the hose coupling 24, if necessary, a further bushing can be arranged on the left side of the box in the figures for the hose section facing away from the embodiment of the embodiment of FIGS. 1 to 9. Due to the height adjustability of the hose coupling 24, it can be avoided in the embodiment variants of FIGS. when choosing a slightly longer extension hose 2 of the U-shaped down hanging hose bend 2b on the bottom of the hose guide box 1 1, 1 1 'or another located there, such as a bottom part of a kitchen sink base, seated when the pullout second is in its retracted home position or is moved back into this.

As the illustrated and illustrated above embodiments make clear, the invention advantageously provides a hose guide device with which a U-shaped down hanging hose bend variable length very good and can be done with relatively little effort. The hose guide device can be used in particular in sanitary extension hose fittings, such as kitchen shower faucets with pull-out hose, but they can also be found in non-sanitary applications everywhere where there is a need for a corresponding leadership of a hose bend.

Claims

claims

1 . Hose guide device for guiding a U-shaped downwardly hanging hose bend (2b) of variable length, in particular a hose bend of a pull-out hose of a sanitary fitting,

marked by

an at least open top hose guide box (1 1) for rotationally secured receiving the hose bend (2b).

2. Hose guide device according to claim 1, further characterized by a rotatably insertable into the hose bend guide weight roller (12).

3. Hose guide device according to claim 1 or 2, further characterized by a guide tension spring (13) which is coupled with the hose guide box on the one hand and the hose bend on the other hand, that it exerts on the hose bend a return spring force in the direction of a predetermined hose arc starting position.

4. hose guide device according to claim 3, further characterized in that the guide tension spring for coupling with the hose bend is coupled to the guide weight roller.

5. Hose guide device according to one of claims 1 to 4, further characterized in that the hose guide box is designed at least in a lower region as a water collecting container bottom and side closed.

6. Hose guide device according to one of claims 1 to 5, further characterized in that the Schlauchführungsbox perpendicular to a vertical hose arc guide plane (E _v ) has a clear width (W), which is smaller than a transverse extent (Q) of the hose bend and / or less than a diameter (D) of the guide weight roller and / or at most one Factor 2, in particular at most by a factor of 7/4, is greater than a diameter (d _s ) of a tube forming the hose bend and / or at most by a factor of 4/3, in particular at most by a factor of 10/9, is greater than one Width (B) of the guide weight roller.

7. hose guide device according to claim 6, further characterized in that the Schlauchführungsbox two side walls (1 1 b, 1 1 c) with the hose bow-guide plane substantially parallel, guide-relevant wall areas, which are spaced from each other by the clear width.

8. hose guide device according to claim 7, further characterized in that the two side walls have a vertical guide (20) for the guide weight roller.

9. Hose guide device according to one of claims 1 to 8, further characterized in that the hose guide box is open at least in an upper region on sides that intersect a vertical hose bend guide plane (E _v ).

10. Hose guide device according to one of claims 1 to 9, further characterized in that the Schlauchführungsbox has a height between 20cm and 80cm.

1 1. Hose guide device according to one of claims 1 to 10, further characterized in that the Schlauchführungsbox at its open top a roller stop member (16, 16 ') which secures the guide weight roller against exceeding a predetermined upper end position.

12. Hose guide device according to one of claims 1 to 1 1, further characterized in that the Schlauchführungsbox has at its open top a grommet (15) for the extension hose.

13. Hose guide device according to one of claims 1 to 12, further characterized by a arranged on the Schlauchführungsbox hose coupling (24) with at least two hose connections (24a, 24b), of which a hose connection for connecting one end of the U-shaped down hanging hose bend set is.

14. Hose guide device according to claim 13, further characterized in that the hose coupling is held vertically adjustable on the hose guide box.

15. Sanitary extension hose fitting with

a fitting housing (1),

a pull-out hose (2) which can be pulled out of the fitting housing at an operating end area and can be moved back into the same and has a hose bend (2b) of variable length suspended below the fitting housing in a U-shaped manner downwards, and

a hose guide device for guiding the U-shaped down hanging hose bend,

d a d u r c h e c e n c i n e s that

the hose guide device is one according to one of claims 1 to 14.