Single lever cartridge for a sanitary faucet

Patent metadata

Field	Value
Publication number	US-12110971-B2
Application number	US-202017610003-A
Country	US
Kind code	B2
Filing date	Mar 26, 2020
Priority date	May 10, 2019
Publication date	Oct 8, 2024
Grant date	Oct 8, 2024

Abstract

A single-lever cartridge for adjusting mixed water by a swivel lever, having a control disk arrangement, which has a stationary control disk in a stationary position in the cartridge, in which a cold-water inlet and a hot-water inlet and a mixed-water outlet are formed, and a dynamic control disk displaceable by the swivel lever, in which a recess is formed, which is disposed in different overlaps with the cold-water inlets and hot-water inlets and the mixed-water outlet to adjust the mixed water fed from the mixed-water outlet of the stationary control disk, wherein the two control disks are in sliding contact with sealing surfaces facing each other at a sealing plane, and wherein the mouths of the cold-water inlets and hot-water inlets are formed in the sealing surface of the stationary control disk, which mouths can be covered by the sealing surface of the dynamic control disk.

First claim

The invention claimed is:

1. A single-lever cartridge for a sanitary faucet comprising:
a swivel lever ( 3 ) for adjusting temperature and/or quantity of mixed water, and
a control disk arrangement ( 5 ) comprising:
a stationary control disk ( 6 ) disposed in a stationary manner in the single-lever cartridge, and
a dynamic control disk ( 8 ) displaceable by the swivel lever ( 3 ),

wherein the stationary control disk ( 6 ) has a cold-water inlet ( 29 ), a hot-water inlet ( 27 ), and a mixed-water outlet ( 31 ) formed therein,
wherein the dynamic control disk ( 8 ) has a recess ( 33 ) formed therein,
wherein the dynamic control disk ( 8 ) can be brought into different overlaps with the cold-water inlet ( 29 ), the hot-water inlet ( 27 ), and the mixed-water outlet ( 31 ) to adjust the temperature and/or quantity of mixed water routed from the mixed-water outlet ( 31 ) of the stationary control disk ( 6 ),
wherein the stationary control disk ( 6 ) has a sealing surface ( 35 ) and the dynamic control disk ( 8 ) has a sealing surface ( 37 ), the stationary control disk ( 6 ) and the dynamic control disk ( 8 ) being in sliding contact via the sealing surfaces ( 35 , 37 ) thereof that are facing each other at a sealing plane (DE),
wherein mouths ( 39 ), which the sealing surface ( 37 ) of the dynamic control disk ( 8 ) of the cold-water inlet ( 29 ) and the hot-water inlet ( 27 ) can cover, are formed in the sealing surface ( 35 ) of the stationary control disk ( 6 ),
wherein the cartridge has a throttle element ( 41 ) as a separate component, which can be used to reduce a flow cross section of the mouths ( 39 ) of the cold-water inlet ( 29 ) and the hot-water inlet ( 27 ), for throttling hot-water flow and/or cold-water flow into the recess ( 33 ) of the dynamic control disk ( 8 ), and
wherein the throttle element ( 41 ) is cup-shaped, having a throttle bottom ( 43 ) and a shell ( 45 ) rising therefrom, wherein the throttle bottom ( 43 ) has throttle openings ( 55 ), which throttle bottom ( 43 ), at its bottom end facing the sealing surface ( 35 ) of the stationary control disk ( 6 ), is flush with the sealing plane (DE) and/or is in sliding contact with the sealing surface ( 35 ) of the stationary control disk ( 6 ),
wherein the control disk arrangement ( 5 ) has a slide plate ( 17 ) mounted in a stationary manner at the dynamic control disk ( 8 ), at which slide plate a bearing position ( 19 ) is formed for an axle connection ( 15 ) at the swivel lever ( 3 ), and in that the shell ( 45 ) of the throttle element ( 41 ) merges into an outwardly angled retaining flange ( 47 ) at its rim remote from the bottom, wherein the retaining flange ( 47 ) is secured between the dynamic control disk ( 8 ) and the slide plate ( 17 ), and in that the retaining flange ( 47 ) of the throttle element ( 41 ) is pressed against the dynamic control disk ( 8 ) by means of a spring ( 69 ).

2. The single-lever cartridge according to claim 1 , wherein the shell ( 45 ) of the throttle element ( 41 ) has a closed surface.

3. The single-lever cartridge according to claim 2 , wherein the shell ( 45 ) is in gap-free contact with an inner wall of the dynamic control disk ( 8 ) delimiting the recess ( 33 ).

4. The single-lever cartridge according to claim 1 , wherein the throttle bottom ( 43 ) of the throttle element ( 41 ) is divided into a first bottom segment ( 51 ) having throttle openings ( 55 ), which, at its bottom end facing the sealing surface ( 35 ) of the stationary control disk ( 6 ), is flush with the sealing plane (DE) and/or is in sliding contact with the sealing surface ( 35 ) of the stationary control disk ( 6 ), and into a second bottom segment ( 49 ) having throttle openings ( 55 ), which bottom segment is spaced apart from the sealing plane (DE) by a distance (Δy).

5. The single-lever cartridge according to claim 1 , wherein the recess ( 33 ) formed in the dynamic control disk ( 8 ) forms a mixing chamber ( 34 ) in conjunction with the mixed-water outlet ( 31 ) in the stationary control disk ( 6 ), and in that the throttle element ( 41 ) divides the mixing chamber ( 34 ) into a first inlet-end sub-chamber ( 57 ) and a second outlet-end sub-chamber ( 59 ), wherein a cold and/or hot water flow at the inlet end initially flows completely through the first inlet-end sub-chamber ( 57 ) and exits into the second outlet-end sub-chamber ( 59 ) at the throttle openings ( 55 ) of the second bottom segment ( 49 ).

6. The single-lever cartridge according to claim 1 , wherein the shell ( 45 ) is a circumferentially closed shell.

7. A single-lever cartridge for a sanitary faucet comprising:
a swivel lever ( 3 ) for adjusting temperature and/or quantity of mixed water, and
a control disk arrangement ( 5 ) comprising:
a stationary control disk ( 6 ) disposed in a stationary manner in the single-lever cartridge, and
a dynamic control disk ( 8 ) displaceable by the swivel lever ( 3 ),

wherein the stationary control disk ( 6 ) has a cold-water inlet ( 29 ), a hot-water inlet ( 27 ), and a mixed-water outlet ( 31 ) formed therein,
wherein the dynamic control disk ( 8 ) has a recess ( 33 ) formed therein,
wherein the dynamic control disk ( 8 ) can be brought into different overlaps with the cold-water inlet ( 29 ), the hot-water inlet ( 27 ), and the mixed-water outlet ( 31 ) to adjust the temperature and/or quantity of mixed water routed from the mixed-water outlet ( 31 ) of the stationary control disk ( 6 ),
wherein the stationary control disk ( 6 ) has a sealing surface ( 35 ) and the dynamic control disk ( 8 ) has a sealing surface ( 37 ), the stationary control disk ( 6 ) and the dynamic control disk ( 8 ) being in sliding contact via the sealing surfaces ( 35 , 37 ) thereof that are facing each other at a sealing plane (DE),
wherein mouths ( 39 ), which the sealing surface ( 37 ) of the dynamic control disk ( 8 ) of the cold-water inlet ( 29 ) and the hot-water inlet ( 27 ) can cover, are formed in the sealing surface ( 35 ) of the stationary control disk ( 6 ),
wherein the cartridge has a throttle element ( 41 ) as a separate component, which can be used to reduce a flow cross section of the mouths ( 39 ) of the cold-water inlet ( 29 ) and the hot-water inlet ( 27 ), for throttling hot-water flow and/or cold-water flow into the recess ( 33 ) of the dynamic control disk ( 8 ),
wherein the throttle element ( 41 ) has a throttle bottom ( 43 ) having throttle openings ( 55 ), which throttle bottom ( 43 ), at its bottom end facing the sealing surface ( 35 ) of the stationary control disk ( 6 ), is flush with the sealing plane (DE) and/or is in sliding contact with the sealing surface ( 35 ) of the stationary control disk ( 6 ),
wherein the recess ( 33 ) formed in the dynamic control disk ( 8 ) forms a mixing chamber ( 34 ) in conjunction with the mixed-water outlet ( 31 ) in the stationary control disk ( 6 ), and in that the throttle element ( 41 ) divides the mixing chamber ( 34 ) into a first inlet-end sub-chamber ( 57 ) and a second outlet-end sub-chamber ( 59 ), wherein a cold and/or hot water flow at the inlet end initially flows completely through the first inlet-end sub-chamber ( 57 ) and exits into the second outlet-end sub-chamber ( 59 ) at the throttle openings ( 55 ) of the second bottom segment ( 49 ), and
wherein a cleaning unit ( 61 ) is disposed in the first inlet-end sub-chamber ( 57 ), which cleaning unit prevents the throttle openings ( 55 ) from being clogged by limescale.

8. The single-lever cartridge according to claim 7 , wherein the cleaning unit ( 61 ) has a baffle plate ( 63 ), which is spaced apart from the throttle openings ( 55 ), which is disposed loosely in the first inlet-end sub-chamber ( 57 ) and from which cleaning pins ( 65 ) project, wh

Assignees

• Grohe Ag

Inventors

• Tueshaus Jan Philipp
• Steinhoff Stefan
• Weiss Martin
• Leutner Markus

Classifications

• F16K47/04

  for decreasing pressure {or noise level}, the throttle being incorporated in the closure member · CPC title

• F16K47/026

  preventing noise in a single handle mixing valve · CPC title

• F16K47/02

  for preventing water-hammer or noise · CPC title

• F16K19/006

  Specially adapted for faucets · CPC title

• F16K11/0787 Primary

  with both the supply and the discharge passages being on the same side of the closure members (F16K11/0785 takes precedence) · CPC title