DE8702286U1 - Sanitary mixer tap - Google Patents

Description

"Sanitary mixer tap"

The invention relates to a sanitary mixer tap with a cold and a hot water inlet, a mixing chamber and a mixed water outlet, which can be independently adjusted with regard to the water quantity and the mixed water temperature.

For this purpose, a single-lever mixer tap is known from DE-GM 83 19 676.5, whereby the lever is mounted so that it can rotate to a limited extent around the longitudinal axis of a valve for temperature regulation, and is designed so that it can pivot to a limited extent around an axis perpendicular to the aforementioned longitudinal axis for quantity regulation.

Furthermore, it is known to set the desired mixed water temperature by moving the lever up or down and the

Knebel & Röttger 9017/87

- 13 -

Set the desired water quantity by turning the lever around the valve axis.

However, the disadvantage is that

for example when turning the lever of the latter unintentionally at the same time

or swivelled up/down and consequently the previously selected swivel setting, for example for volume regulation, has been changed inadvertently and has to be set again.

In addition, when using a multi-disk valve, both rotary and translatory adjustable control disks must be provided, which makes production more difficult and more expensive.

The object of the invention is to improve a mixer tap of the type specified in the preamble of the claim in such a way that

Knebel & Röttger 9017/87

- 14 -

safer handling than has previously been possible, which also simplifies production while at the same time retaining the option of one-handed operation.

The solution to this problem is characterized by the fact that a common adjustment element rotation axis is provided for both adjustment functions.

This measure eliminates the need to pivot the adjusting element, which previously led to unintentional adjustment of the mixer valve. It also significantly simplifies both the actuator bearing and the entire mixer valve.

For this purpose, a particularly advantageous design in terms of manufacturing technology is characterized by the fact that two actuators that are only rotatably mounted and arranged coaxially to one another

You··

1 1 · C I ·

Knebel & Röttger 9017/87.·," : " ·..*.:.. \.''. '

- 15 -

are provided, one of these actuators is intended for adjusting the amount of water flowing out and the other for adjusting the mixed water temperature, whereby preferably the first actuator has tubular cross-sections and the other, second actuator is rotatably mounted in the bore of the first actuator. In this context, the rotatable mounting must either have sufficient play so that when the rotatably mounted actuator is actuated, the other tubular actuator is not moved, or the inhibition of the bearing part must be greater than the inhibition of the rotating part in the bearing part.

A variant that may be preferred under certain circumstances is characterized by a rotatably mounted actuator that is axially adjustable to a limited extent so that in one axial end position it is effective for regulating the water quantity and in the other end position it is effective for regulating the mixed water temperature, whereby the actuator can preferably also be adjusted from the initial position against spring force and in the initial position it is effective for regulating the quantity, but in the other end position it is effective for regulating the

■ &igr; tt

Knebel & Röttger 9017/87

- 16 -

Temperature regulation is coupled so that only a single actuator needs to be operated.

Preferably, a switchable toothed coupling, in particular with peripheral teeth, is provided. In all of this, it is advantageous if the quantity regulation is arranged in the flow direction of the medium before the temperature regulation in order to exclude heat exchange in the water supply lines.

In a mixer tap, where a valve is assigned to both the cold water and the hot water supply line, both valves can be driven by one actuator via a gear drive so that both valves open or close together and the second actuator acts on a third valve intended for temperature regulation.

& Röttger • «
·« · ·· II
· » ■ n· If··
■&igr; · ^t Gag • «rc*
·
9017/8*7 " · · »
• I ·
&iacgr; .j »J
J » ·
·· · - 17 -

For this purpose, a design that is favorable in terms of manufacturing technology is characterized in that the spindles of all valves are arranged parallel to one another, that the second actuator is connected to the spindle of the third valve in a rotationally fixed manner, that the spindle of the third valve is surrounded by a sleeve with play so that it can rotate and carries a coaxially arranged gear wheel, and that the spindles of the other two valves each have a rotationally fixed gear wheel that meshes with the gear wheel of the sleeve.

A possibly preferred variant of a mixer tap, in which a valve is assigned to both the cold water inlet and the hot water inlet, consists in the fact that, in addition to the two valves intended for volume regulation, a third valve is provided for temperature regulation, the spindles of all valves are aligned with one another

&bull; *·<·» &igr; a · &igr;&igr;&igr;>·

Knebel & Röttger 9017/87 .

- 18 -

run parallel and are arranged with their free end parts pointing towards the actuator, the spindles of the third valve are rotatably enclosed by a sleeve with play, the sleeve carries a coaxially arranged gear, the spindles of the other two valves each have a rotationally fixed gear which meshes with the gear of the sleeve, the actuator is mounted axially adjustable relative to the spindle of the third valve and to the sleeve and that the actuator is designed to be alternately coupled to the spindle or sleeve.

A preferred design of the aforementioned coupling, which is both inexpensive to manufacture and robust and space-saving, is characterized in that the actuator has a circumferential internal toothing and a circumferential external toothing that is larger in diameter than the latter, both

Knebel & Röttger 9017/87

- 19 -

Gears are arranged coaxially to each other, coaxial to the actuator one on one of the valve arrangements, äüiü example for A rotatably mounted shaft or sleeve is provided which is effective for quantity regulation and which is surrounded by a rotatably mounted sleeve or spindle which is effective on the other valve arrangement, for example for temperature regulation, the shaft ends at the end part facing the actuator in an external toothing corresponding to the internal toothing of the actuator, the sleeve has an internal toothing corresponding to the external toothing of the actuator, and that the internal toothing of the sleeve and the external toothing of the shaft or spindle are arranged axially offset from one another in such a way that the toothing of the axially adjustable actuator meshes either with the toothing of the shaft or spindle or with the toothing of the sleeve.

To further simplify the mixer tap

·· ■· ■· M «mi

Knebel & Röttger 9017/87

- 20 -

it is advantageous if a multi-disk valve with a quantity and a temperature control disk is assigned to it, whereby both of the aforementioned control disks are mounted so as to be movable only in a rotor-like manner.

For this purpose, an embodiment with high functional reliability and compact construction is disclosed in claims 13 and 14. A possibly preferred variant is characterized in claim 15.

An advantageous design which reduces production costs is disclosed in claim 16.

Embodiments of the invention are disclosed in the drawings and are explained below.

&bull; · te* ···

Knebel & Röttger 9017/87

- 21 -

It shows Fig . 1 Fig . 2 Fig . 3 Fig . 4 Fig . 5

Fig. 6 Fig. 7 Fig. 8th Fig. 9 Fig. 10 Fig. 11 Fig. 12 Fig. 13

a mixer tap in front view, partly in longitudinal section;

likewise seen in the direction of arrow II of Fig. 1 - also partly in section;

part of the same in front view, partly in longitudinal section;

also seen in the section along line IV-IV of Fig. 3;

a variant of the part shown in Figures 3 and 4 in front view, partly in longitudinal section;

also seen in section along line VI-VI,

a second mixing valve in longitudinal section along line VII-VII

seen in Fig. 8;

also seen in the section of line VIII-VIII of Fig. 7,

also seen along the line IX-IX of Fig. 7;

also seen along the line X-X of Fig. 7;

also seen along the line XI-XI of Fig. 7;

also seen along the line XII-XII of Fig. 7; .

a variant of the mixer tap

in the same view as Fig. 7;

Knebel & Röttger 9017/87

- 22 -

ty Fig. 14 a third mixing valve in the longitudinal

section according to line XIV-XIV

seen in Fig. 15;

Fig. 15 of the same in cross section according to

the line XV-XV ^% of Fig. 14°;

Fig. 16 also in cross section according to

seen from line XVI-XVI of Fig. 14;

Fig. 17 also seen in longitudinal section along the line XVII-XVII of Fig. 18 ;

Fig. 18 also seen in cross-section along the line XVIII-XVIII of the figure;

Fig. 19 also seen in cross-section along the line XIX-XIX of Fig. 17 ;

Fig. 20 also in cross section according to

the line XX-XX of Fig. 17.

The system shown in Figures 1 to 6,

sanitary mixer tap, for example for

a washbasin, has a housing 1

with a cold water inlet 2, a hot water&mdash;

inlet 3 and a mixed water outlet 4.

&diams; ·· ·&igr;&igr;&igr; «···

■ f>···· it ·

Knebel & Röttger 9017/87

- 23 -

In the housing 1 there are two valves 5 and 6 for regulating the flow rate and a valve 7 connected to the latter for regulating the temperature.

The valve spindles 8, 9 and 10 of all valves 5, 6 and 7 are arranged parallel to one another and the spindle 10 protrudes beyond the other two spindles 8 and 9. The spindle 10 passes through, as can be seen from Fig. 3, a sleeve 11 which is rotatably mounted on an angle piece 12 of the housing 1.

An actuator 13 designed as a rotary handle is held in a rotationally fixed manner at the free end of the spindle 10 protruding from the sleeve 11. Another actuator 14 designed as a rotary handle is attached to the sleeve 11. Furthermore, a gear 15 arranged coaxially to the sleeve 11 is formed on the lower end of the sleeve, which meshes with gears 16 and 17 arranged on the spindles 8 and 9.

Knebel & Röttger 9017/87

- 24 -

The valves 5 and 6 are designed in such a way that they close or open together, driven by the gear 15.

The longitudinally adjustable valve body of the valve eyelet 7 has two opposing, conically tapered sealing surfaces 18 and 19, which each interact with a valve seat fixed to the frame in such a way that, depending on the position of the valve body, they reduce or increase the cold and/or hot water supply to a mixing chamber 20 to a greater or lesser extent.

The mixing chamber opens into the mixed water drain 4.

The connections between the spindle 10 and the actuator 13 as well as between the sleeve 11 and the actuator 14 are designed as positive-locking connections, as can be seen from Fig. 4.

&bull; · · · ft

> I t < I t

9 1 t

Knebel & Röttger 9017/87

- 25 -

With this mixer tap, the amount of water flowing out can be regulated with the actuator 14 and the mixing temperature of the flowing water can be regulated with the actuator 13.

According to Fig. 5 and 6, a single actuator 21 designed as a rotary handle is provided for both quantity and temperature regulation, which has an internal toothing 22 and an external toothing 23 that is larger in diameter and arranged coaxially to the latter. An external toothing 24 corresponding to the internal toothing 22 is formed on the spindle 10, while the sleeve 11 is provided with an internal toothing 25 corresponding to the external toothing 23 of the actuator 21.

In a bore extension 11, in which a nozzle 26 of the actuator 21 having the teeth 22 and 23 is mounted so as to be displaceable in the axial direction,

·· &igr;&igr;&igr; » t · · · t &igr;

&bull; · · 1 t suffered*

« · t &igr; f t 1 t I «

Knebel & Röttger 9017/87

- 26V

a spring element 27 designed as a helical compression spring is arranged, which is supported under prestress on the one hand on the nozzle 26 and on the other hand on the base of the bore extension of the sleeve 11. In addition, the actuator 21 is held on the sleeve 11 in an axially limited manner.

In addition, the gears 24 and 25 are arranged one behind the other in the axial direction at such a distance that one of these gears meshes with either the gear 22 or the gear 23, so that depending on the axial setting of the actuator 21, either the spindle 10 or the sleeve 11 is set in rotation when it is rotated.

The mixer tap shown in Figures 7 to 13 is provided with a multi-disk valve 30, in whose cup-shaped, cylindrical housing 31 a housing-fixed disk 32 with a cold water inlet bore 33, a hot water inlet bore 34 and

MM ItII ·· *«

Knebel & Röttger 9017/87

- 27 -

a mixed water drain hole 35 is arranged.

All of these holes 33 to 35 are arranged concentrically to the central axis and evenly distributed around the circumference. A disk 36, which is intended for volume regulation and is mounted in the housing 31 so that it can rotate to a limited extent, rests tightly on the disk 32. This disk has control holes 37, 38 and 39 that can be positioned opposite the holes 33 to 35. A further disk 40 rests tightly on the disk 36, which is held non-rotatably in the housing 31 and is provided with holes 41 to 43 corresponding to the holes 33 to 35. The disk 40 is followed by a disk 44, which is mounted in the housing 31 so that it can rotate to a limited extent and in which a mixing chamber 45 is arranged, which is designed and arranged in relation to the holes 41 to 43 so that on the one hand the disk 40 intended for the discharge of the mixed water

Jf..

&bull; · · · t I

&bull; · · · · Ii ··· · Il HII it &igr;

Knebel & Röttger 9017/87

- 28 -

Bore 43 of the disk 40 is permanently connected to the mixing chamber 45, on the other hand by rotating the disk 44 the openings of one of the two bores 41 or 42 or both bores 41 and 42 of the mixing chamber 45 with a continuously variable passage cross-section can be placed opposite each other.

A flange of a sleeve ll' rests on the disc 45.

All ceramic disks 32, 36, 40 and 44 are placed tightly against one another via the sleeve 11 of a screw ring 46 that engages in the housing 1. Between the flange of the sleeve 11 and the screw ring 46 there is also a sliding ring 47 and a stop ring 48.

The flange of the sleeve II ¹ is connected to the disk in a rotationally fixed manner in the manner of a claw coupling. A sealing ring 49 is provided between the latter.

·· <·

· · · I Ii

Knebel & Röttger 9017/87

- 29 -

To limit the rotation of the discs,

from the inside of the housing 1 a cam which is placed in a part of the disc circumferentially extending recess 51

intervenes.

The frame-fixed discs 32 and 40 are fixed in a similar way.

A shaft 52 is rotatably and tightly mounted in the sleeve II ¹ , the lower end part of which passes through the disks 45 and 40 and is connected in a rotationally fixed manner to the disk 36 by means of a plug connection.

At the upper end part of the shaft 52 in Fig. an actuator designed as a rotary handle is arranged in a rotationally fixed manner and the upper end part of the sleeve II ¹ protruding from the housing 1 is connected in a rotationally fixed manner to a second actuator 14 designed as a rotary handle.

&bull; · · · ·&Igr; UOJi ti

&bull;&bull;»«&bull;111! I ·<■> · I « i ti , &igr;

&bull; · · · · * ' · j ·■· I II III!

Knebel & Röttger 9017/87

y - 30 -

In the variant shown in Fig. 13, only one actuator 21 is provided, which, as in the object shown in Fig. 5, can be coupled optionally to the shaft 52 or the sleeve II ¹ by means of a toothed coupling.

^l! -· The system shown in Figures 14 to 20

The mixer tap is essentially the same as the mixer tap shown in Fig. 13. However, here only the disks 32 and 36 used to regulate the flow rate are made of ceramic, while the disks 40 and 46 used to regulate the temperature are made of cheaper plastic, although the latter do not ensure as high a seal as disks made of ceramic.

However, in contrast to volume regulation, minimal leakages between the water-bearing boreholes are acceptable when regulating temperature.

Knebel & Röttger 9017/87

- 31 -

In addition, in contrast to the mixer tap shown in Fig., the disk 40 is rotatably mounted in the housing, can be rotated by means of the shaft and is connected to the disk 36 in a rotationally fixed manner in the manner of a claw coupling.

In addition, the disk 44 is held non-rotatably in the housing and the mixing chamber 45 is arranged in the front side of the sleeve 11 facing the disk 44, wherein the mixing chamber 45 is delimited by a ring 53 which is inserted into a cylindrical recess in the sleeve 11 in a tightly sealing manner on the front side.

This mixing valve can also be designed like the embodiment shown in Figure 7 with two actuators 13 and 14.

All new individual and combination features disclosed in the description and/or drawing are considered essential to the invention.

Claims (1)

PATENT WXLTE *; : . ; J* : \,'AM»iteefc»j.ii: oiPu-&idiagr;&Ngr;&agr; CONRAD KÖCHUNG. "&Ggr;oipu-&idiagr;&Ngr;&agr; CONRAD-JOACHIM KÖCHLING Reyer Streß* 135, 5800 Hacen Ruf (0233t) »im+a wn &Agr;&eegr;&pgr;&igr;.: Knebel & Sottger Tatogramma: PatantkSdillnc Hag·» GmbH. & Co . Accounts: Commabank AQ. H«gw ßipqpohraße (BU«&ogr;«»«)SSU(M biesescraae ju Spyfaaw; H iqwi 10001200 Po«»*·*:Dortmu«neee-«o 5860 Iserlohn VNR: _^LJU_5Ä_5J Mr 9017/87 R/G. 13 February 1987 Protection claims: 1. Sanitary mixer tap with one cold and one hot water inlet, one mixing chamber and a mixed water outlet, which can be adjusted independently of one another in terms of the water quantity and the mixed water temperature,"characterized in that a common adjusting element rotation axis is provided for both adjustment functions. 2. Mixer fitting according to claim 1, characterized in that two merely rotatably mounted and coaxially arranged actuators (13, 14) are provided, one Knebel & Röttger 9017/87 of these actuators is intended for adjusting the amount of water flowing out and the other is intended for adjusting the mixed water temperature. Mixing fitting according to claim 2, characterized in that the one, first actuator has tubular cross sections and the other, second actuator is rotatably mounted in the bore of the first actuator. 4. Mixer fitting according to claim 1, characterized by a rotatably mounted actuator (21) which is mounted in such a way that it is axially adjustable to a limited extent that it is effective in regulating the water quantity in one axial end position and in regulating the mixed water temperature in the other end position, t · it· <&diams;< Knebel & Röttger 9017/87 5. Mixing valve according to claim 4, characterized in that the actuator (21) consists of the All«OAnoe«t*ol1tlno 0000&eegr; Po/larl/ref *■ t*Äve»-Äi1_ &sgr;&sgr; ~~ &mdash;"&sgr;&sgr;&mdash;&ogr;~*" ~ ·. &mdash;&mdash;■-«·■«·.·.·#*«**.k#ww^.a. bar and is coupled to the flow control in the initial position, but to the temperature control in the other end position. 6. Mixing fitting according to claim 5, characterized by a switchable tooth coupling, in particular with circumferential teeth. 7. Mixing fitting according to one of claims 1 to 6, characterized in that the quantity regulation is arranged in the flow direction of the medium before the temperature regulation. Knebel & Röttger 9017/87 8. Mixer fitting according to one of claims 1, 2, 4 or 6, wherein both the cold and the hot water inlet are assigned a valve, characterized in that both valves (5, 6) can be driven by the one actuator (14) via a gear drive so that both valves (5 and 6) open or close together and that the second actuator (13) is arranged to act on a third valve (7) intended for temperature regulation. 9. Mixer fitting according to claim 8, characterized in that the spindles (8, 9 and 10) of all valves (5, 6 and 7) are arranged parallel to one another, that the second actuator (13) is connected to the spindle (10) of the third valve (7) in a rotationally fixed manner, the spindle (10) of the third valve (7) is rotatably surrounded by a sleeve (11) Knebel & Röttger 9017/87 and carries a coaxially arranged gear (15) and the spindles (8,9) of the two other valves (5,6) each have a rotationally fixed gear (16 or 17) which mesh with the gear (15) of the sleeve (11). 10. Mixer fitting according to one of claims 1, 3, 5, 6 or 7, wherein a valve is assigned to both the cold and the hot water inlet, characterized in that in addition to the two valves (5, 6) intended for quantity regulation, a third valve (7) intended for temperature regulation is provided, the spindles (8, 9 and 10) of all valves (5, 6 and 7) run parallel to one another and are arranged with their free end parts pointing towards the actuator (21), the spindles (10) of the third valve (7) are rotatably surrounded by a sleeve (11) and the sleeve (11) Knebel & Röttger 9017/87 p carries a coaxially arranged gear (15), the spindles (8,9) of the other two valves &trade; (5 üüd 6) ^s sin drshisst sn ^a scrdnstss gear (16 or 17) which are % mesh with the gear (15) of the sleeve (11), the actuator (21) relative to the spindle (10) of the third valve (7) and to the sleeve ' (11) is axially adjustable and that the actuator (21) is designed to be alternately coupled to the spindle (10) or the sleeve (11). &idiagr; 11. Mixer fitting according to one of claims 1,3,5 to 8 or 10, characterized in that the actuator (21) has a circumferential internal toothing (22) and a circumferential external toothing (23) that is larger in diameter than the latter, both toothings (22 and 23) are arranged coaxially to one another, coaxially to the actuator (21) a Knebel & Röttger 9017/87 &bull; r · · ■· a rotatably mounted shaft (52) or sleeve (11) is provided which is effective on one of the valve arrangements, for example for quantity regulation, and which is surrounded by a rotatably mounted sleeve (II ¹ ) or spindle which is effective on the other valve arrangement, for example for temperature regulation, the shaft (52) or spindle (10) ends at the end part facing the actuator (21) in an external toothing (24) corresponding to the internal toothing (22) of the actuator (21), the sleeve (11,11') has an internal toothing (25) corresponding to the external toothing (23) of the actuator (21), and that the internal toothing (25) of the sleeve (11,11') and the external toothing (24) of the shaft (52) or spindle (10) are arranged axially offset from one another in such a way that the toothing of the axially adjustable actuator (21) either with the toothing of the Shaft (52) or spindle (10) or with the teeth of the sleeve (11 or 11'). &bull; · t» ·&Igr; tt Mil Knebel & Röttger 9017/87 12. Mixer tap according to one of the claims 1 to 11, characterized by a multi-disk valve (30) with a quantity control disk and a temperature control disk, both of which are mounted exclusively for limited rotor movement. 13. Mixer fitting according to claim 12, characterized in that in the flow direction of the medium, a first, frame-fixed disk (32) with a cold water inlet bore (33), a hot water inlet bore (34) and a mixed water outlet bore (35) is tightly fitted with a rotor-movable disk (36) intended for quantity regulation with control bores (37 to 39), to which a second, frame-fixed disk (40) with bores (41 to 43) arranged coaxially with the bores (33 to 35) of the first frame-fixed disk (32) is connected. Aa Knebel & Röttger 9017/87 which is followed by a rotor-movable control disk (44) intended for temperature regulation with a mixing chamber (45) which is designed and arranged in relation to the bores of the second disk (40) fixed to the frame in such a way that, on the one hand, the mixing chamber (45) is constantly connected to the mixed water outlet bore and, on the other hand, the mouths of one of the two inlet bores (41, 42) or both inlet bores (41, 42) of the second disk (40) fixed to the frame can be positioned opposite the mixing chamber (45) with a continuously variable passage cross-section. 14. Mixer fitting according to claim 13, characterized in that the disk (36) intended for quantity regulation is connected to the latter in a rotationally fixed manner and arranged coaxially to the latter, as well as the second disk (40) fixed to the frame and the disk for temperature regulation Knebel & Röttger 9017/87 - 10 - serving disc (44) is connected in a rotationally fixed manner to an actuator (13) and that the shaft (52) is surrounded by a sleeve (11) arranged coaxially thereto and which can be coupled to an actuator, which is connected in a rotationally fixed manner to the disc (44) intended for temperature regulation. 15. Mixing fitting according to one of claims 12 to 14, characterized in that the mixing chamber (45) is arranged in the front side of the sleeve (11) facing the disc (44) fixed to the frame and having suction holes, which is supported on the front side in a tight manner on the aforementioned disc (44). Knebel & Röttger 9017/87 - 11- 16. Mixer fitting according to one of claims 12 to 15, characterized in that the Hof Monoonroani &Iacgr;&ogr;&tgr;* 11 &eegr;&ogr;/1*&idiagr; an a &eegr; A an S /* h &agr;&iacgr; Kor* (32 and 36) are made of ceramic, while the discs (40,44) intended for temperature regulation are made of plastic (Fig. 14).