DE102009048486A1 - Valve cartridge for sanitary valve, has actuation shaft pivotably supported in bearing sleeve, and stop counter element fixedly formed in pivotal direction of actuation shaft upto predetermined load - Google Patents

Abstract

The valve cartridge has a bearing sleeve rotatably arranged in a valve housing (1). An actuation shaft (5) is pivotably supported in the bearing sleeve. The actuation shaft has a stop element (7) moved sideways by pivotal movement. The bearing sleeve has a stop counter element (11) at a side of a pivot path of the actuation shaft, where the stop counter element lies in a movement path of the stop element. The stop counter element is fixedly formed in a pivotal direction of the actuation shaft upto a predetermined load.

Description

The invention relates to a valve cartridge for a sanitary valve.

Valve cartridges contain controls in a sealed assembly to control the amount of water exiting a sanitary valve, and typically also to control the mixing ratio between the hot and cold water. The valve cartridges are then inserted into corresponding openings of the sanitary fitting. They contain an actuating element to which then an adapted handle can be attached.

For example, a rotation of the lever serves to set a desired temperature and a pivoting of the lever about an axis arranged in the cartridge for adjusting the opening degree.

It is already such a mixing valve cartridge is known in which on the operating shaft side projections are mounted, which can cooperate with resiliently mounted counter-stops to form a stop position for the opening movement of the valve. The counter-stops are provided as resilient tongues on a mounted outside of the upper part of the cartridge housing rotary ring. The tongues are resilient, so that this stop position can be overcome ( EP 662577 ).

The invention is based on the object of providing a simply constructed, easy to manufacture, suitable for subsequent replacement valve cartridge with the possibility of forming an intermediate stop.

To solve this problem, the invention proposes a valve cartridge with the features mentioned in claim 1. Further developments of the invention are the subject of dependent claims.

According to the invention, therefore, the stop counter-element is attached to the bearing sleeve. The upper housing part of the valve housing of the valve cartridge can therefore be used for other tasks. The space required radially outside of the housing top does not increase. During rotation of the actuating element, the bearing sleeve is rotated and the stop counter element moves with it.

The stop counter element is intended to limit a full opening of the valve by cooperation with the stop element. This is to recognize the user that he should not consume more water. It is possible, however, to overcome this tactile indication given to him in the saving position by the attack. For this purpose, it may be provided that the stop element is arranged on the operating shaft or the abutment counter element on the bearing sleeve such that a deflection in a direction transverse to the movement of the actuating shaft is possible, and that this evasive movement effected by the engagement of the stop element on the abutment counter element becomes. The user thus feels when reaching the attack of the two stop elements together a certain resistance, but he can overcome. He can therefore continue to open the valve in particular completely, without having to perform additional handling. Moreover, this forms a safeguard against self-opening of the valve.

It is of course also possible and is proposed by the invention to arrange the abutment counter element such that it evades in overcoming the resistance, which it opposes the stop element in the direction of movement of the stop element. For this purpose, the stop counter-element can be resiliently mounted.

According to the invention may be provided in a development that for defining a second stop position, the valve cartridge has a second stop element or a second stop counter element or both.

In a further development of the invention can be provided that at least one stop element and / or at least one stop counter-element is designed as a cam. This is to be understood that this stop element is due to the cam shape in a position to evoke an evasive movement at the other element or to avoid even with increasing the adjustment force.

In a further development it can be provided that the stop element interacting with the cam and / or stop counter element is formed on a cam track along which the cam is movable. This can be used for a kind of leadership.

In particular, it can be provided that the cam track extends along an arc, in particular an arc with a center in the axis of storage of the operating shaft in the bearing sleeve.

With such a design, the spring-loaded cam can escape both perpendicular to the direction of movement of the fixed stop element and at least partially in its direction of movement.

It is also possible and within the scope of the invention that at least one stop element and / or stop counter element is designed as a pin, in particular as a pin with a circular cross section. Also, this pin can be used due to its shape to evoke an evasive movement of the other element or its own with correspondingly increased adjustment.

According to the invention it can be provided that the stop element and / or the abutment counter element is arranged on a resilient element, which thus can enable the already repeatedly mentioned evasive movement.

For this resilient element different embodiments come into question. According to the invention, however, it is preferred if the resilient element is designed as a type of leaf spring, in particular a leaf spring retained at its two ends.

In a further development of the invention it can be provided that the leaf spring defines a slot closed at least on one side, which preferably has a constant width.

A slot limiting leaf spring can spring inwardly as well as outwardly. Therefore, it can be provided according to the invention that the stop element and / or the abutment counter element is arranged on the inside of such a leaf spring and protrudes into the slot.

However, it is also possible and is proposed by the invention that the corresponding element is arranged on the outer side of the leaf spring.

It has proven to be particularly useful if the width of the slot corresponds to the diameter of the pin forming the stop element and / or the stop counter element. Thus, the pin can be completely guided in the slot. The end of the slot can also form a stop which then can not be overcome.

It is also possible that the leaf spring is mounted only on one side, so forms a slot open on one side.

The arrangement of a slot for guiding a pin can also form a stop counter element, if the slot is not limited by a leaf spring.

According to the invention it is sufficient if a stop element is present only on one side of the operating shaft. However, it is also possible and is proposed by the invention to provide a stop element on both sides of the operating shaft.

Both stop elements may be formed symmetrically, but they may also be arranged asymmetrically to define different stop positions.

The stop counter-elements and the stop members may be formed to have a plurality of stop positions effective at different positions of the opening movement of the operating shaft to alert the user to a plurality of stepped opening positions. The stopper elements can also be shaped so that the user-mediated feeling in the opening direction and in the closing direction is different and different degrees.

Further features, details and advantages of the invention will become apparent from the claims and the abstract, the wording of which is incorporated by reference into the content of the description, the following description of preferred embodiments of the invention and with reference to the drawing. Hereby show:

1 a side view of a valve cartridge in the closed position;

2 the side view of the valve cartridge in a partially open position;

3 the perspective view in the closed position;

4 the side view in a fully open position;

5 one of the 1 corresponding representation of a modified embodiment;

6 one of the 2 corresponding representation of the second embodiment;

7 a representation accordingly 3 ;

8th a representation accordingly 4 in the second embodiment;

9 a side view of the embodiment of the 5 - 8th from the right;

10 one of the 9 corresponding representation of the embodiment according to 1 to 4 ;

11 a perspective view with both sides arranged stops;

12 a representation with a one-sided stopper;

13 an enlarged view of a modified embodiment of the stop counter-element.

In the 1 illustrated valve cartridge includes a housing 1 , which is formed substantially cylindrical. Inside the housing, the parts for the valve adjustment and the valve are housed. At the top protrudes from the housing, the upper housing part out of a stop sleeve 2 is surrounded. This stop sleeve 2 can be placed in different angular positions about the axis of the housing offset on the upper housing part. The stop sleeve 2 contains a fixed stop 3 for limiting the rotational movement, which concerns the temperature determination in the example shown.

In the valve housing 1 is a bearing sleeve 4 arranged in the perspective view of the 3 just to see.

The bearing sleeve serves to an operating shaft 5 to store. This activity shaft 5 Can be used together with the bearing sleeve 4 around the longitudinal axis of the valve body 1 can be twisted, and he can around the bearing axis within the bearing sleeve 4 be pivoted. There is then a pointing in the direction of pivoting front and back of the operating shaft, and two opposite sides thereof, in the 1 . 2 and 4 you can see. On this side, that is, the side that moves in a plane when pivoting the operating shaft is at a projection 6 a down-facing cam 7 educated. This cam 7 forms a stop element. In the example shown, this stop element is integral with the operating shaft 5 educated. It moves during the pivoting of the operating shaft 5 on a circular arc around the axis of the bearing of the operating shaft 5 inside the bearing sleeve 4 ,

On the bearing sleeve is a projection 8th molded, the one slot 9 which has a footbridge 10 is limited. This jetty 10 is in the area of its two ends with the projection 8th connected. He acts like a leaf spring. Both the bottom edge and the top edge of the slot 9 run circular arc concentric with each other. Center point is the axis of storage of the operating shaft 5 in the bearing sleeve 4 ,

At the top of the figures in the acting as a leaf spring web 10 that is, with respect to the bearing axis of the operating shaft 5 radially outside, is a stop counter-element 11 molded, which also has the shape of a cam. It lies in the path of movement of the stop element 7 the actuating shaft during its pivoting about its bearing axis. The rounded tip of the stop element 7 lies in the in 1 illustrated closed position of the valve on the outside of the leaf spring 10 at. When opening the valve, causing a pivoting of the operating shaft 5 clockwise, the stopper slides 7 on the top of the bridge 10 that with it for the cam 7 forms a cam track. Once the stop element 7 on the stop counter element 11 comes to the plant, see 2 , the opening movement of the valve is stopped. The user feels this.

Of the 3 can be seen that the acting as a leaf spring web 10 has a clear width, which also the dimension of the cam 7 equivalent. Due to the spring characteristics of the material from which the web 10 is manufactured, small tolerances in the production of the elements can be compensated.

However, if the user wants to open the valve further, he can see that by the abutment of the two stop elements together, see 2 overcome resistance. Due to the cam shape with the inclined attack surfaces presses the stop 7 the stop counter element 11 down, which is made possible by the slot. After passing the two cams past each other, the bridge springs 10 back to his starting position. The valve can be fully opened, see 4 , Also in the backward movement occurs such tactile for the user noticeable position in which he has to overcome the resistance.

By appropriate design of the spring and / or the front in the direction of movement flanks of the attacks, the backward movement can be performed without a noticeable resistance.

In the in the 1 to 4 shown valve cartridge, both the stop element and the abutment counter element is formed as a cam, wherein both cams have identical shape, but reverse arrangement.

In the in the 5 to 8th valve shown is the stop counter-element 21 on the inside of the otherwise similarly constructed projection 8th the bearing sleeve 4 formed. The cam protrudes so inward. The web acting as a leaf spring 10 can spring both outwards and inwards.

As a stop element on the operating shaft here serves a pin 17 , in the illustrated Example with a circular cross-section. The pin 17 is inside the slot 9 arranged, its diameter corresponds approximately to the width of the slot 9 , and the slot 9 is rounded on both sides so that the pin 17 can invest there. The 5 again shows the fully closed position of the valve in the valve cartridge. During the pivoting movement of the pin arrives 17 to rest on the cam 21 , please refer 6 , Again, the stop counter element, namely the cam 21 , Be deflected transversely to the direction of movement, which again by the shape of the pin 17 can happen. Then the operating shaft arrives 5 in the fully open position, see 8th , There lies the pin 17 at the opposite end of the slot 9 at.

The 9 shows a partially sectioned view of the valve cartridge from the right in 5 , The pin 17 is manufactured as a separate component and through an opening in the operating shaft 5 stuck through it, leaving it on both sides of the operating shaft 5 protrudes. He can turn into a slot on both sides 9 intervene and there each with a cam 21 interact.

From the 9 is also the upper housing part 13 to see on which the stop ring 2 is fixed positively in the circumferential direction.

The 10 shows one of the 9 corresponding representation of an embodiment similar 1 to 4 with stop elements present on both sides 7 , These stop elements 7 lie on the top of acting as a leaf spring web 10 at.

The 11 shows the perspective view of an embodiment of the 10 while the 12 the corresponding representation with only one stop element 7 shows.

In the second embodiment, the pin engages 17 in the slot 9 one. Of course, it is also conceivable that the pin on the outside of the bridge 10 is moved past and with one on the outside of the bridge 10 be curled up 11 interacts.

In the illustrated embodiment, the component is the arcuate slot 9 arranged on the bearing sleeve, and the single cam 7 at the operating shaft 5 , A reverse training is also possible.

The 13 shows in a opposite to the 1 enlarged view of the side view of a removed from the valve housing bearing sleeve. Interesting here is the modified form of the stop counter element, in which at the top of a cam track is formed, which forms a different resistance depending on the direction. If the stop cam on the top of the leaf spring is moved counter clockwise from right to left, there is a tactile resistance. In the reverse movement, ie in the clockwise direction, no resistance or no appreciable resistance occurs.

If, however, a pin is guided in the interior of the slot, so occurs in its movement in a clockwise direction of the kink, a resistance that can be overcome. In the opposite direction, ie in the counterclockwise direction, on the other hand no resistance occurs. Even with such a design of a stop counter element, a plurality of stop positions can be defined, for example, by using on the operating shaft a cam running on the upper side of the leaf spring and a pin arranged in a different position, which runs inside the slot.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 662577 [0004]

Claims (15)

Valve cartridge for a sanitary valve, with 1.1 a housing housing having a valve housing ( 1 ), 1.2 one in the valve housing ( 1 ) rotatably arranged bearing sleeve ( 4 ), 1.3 one in the bearing sleeve ( 4 ) pivotally mounted operating shaft ( 5 ), 1.4 being the operating shaft ( 5 ) at least one co-moving in its pivoting movement laterally arranged stop element ( 7 ) and 1.5 the bearing sleeve ( 4 ) on at least one side of the pivoting path of the actuating shaft ( 5 ) in the path of movement of the stop element ( 7 ) lying stop counter element ( 11 ), the 1.6 in the pivoting direction of the operating shaft ( 5 ) Is designed to be stationary at least up to a certain load. Valve cartridge according to claim 1, in which the stop element ( 7 ) and / or the stop counter element ( 11 ) is arranged such that a deflection in a direction transverse to the movement of the actuating shaft ( 5 ) by attacking the stop element ( 7 ) on the stop counter element ( 11 ) is possible. Valve cartridge according to claim 1 or 2, with a second stop element and / or abutment counter element for forming a second detent position. Valve cartridge according to one of the preceding claims, in which at least one stop element ( 7 ) and / or abutment counter element ( 11 ) is designed as a cam. Valve cartridge according to claim 4, wherein the cooperating with the cam stop element and / or abutment counter element is formed on a cam track along which the cam is movable. Valve cartridge according to claim 5, wherein the cam track extends along an arc. Valve cartridge according to one of the preceding claims, in which at least one stop element ( 17 ) and / or abutment counter element is designed as a pin. Valve cartridge according to one of the preceding claims, wherein the stop element and / or the abutment counter element is arranged on a resilient element. Valve cartridge according to claim 8, wherein the resilient element is formed by a kind of leaf spring. Valve cartridge according to Claim 9, in which the leaf spring has a slot closed at least on one side ( 9 ) limited. Valve cartridge according to claim 10, wherein the slot ( 9 ) has a constant width. Valve cartridge according to claim 10 or 11, wherein the stop element and / or the stop counter element ( 21 ) on the inside of the leaf spring ( 10 ) is arranged. Valve cartridge according to claim 10 or 11, wherein the stop element and / or the stop counter element ( 11 ) is arranged on the outside of the leaf spring. Valve cartridge according to one of claims 11-13, wherein the width of the slot ( 9 ) the diameter of the stop element and / or the abutment counter element forming pin ( 17 ) corresponds. Valve cartridge according to one of the preceding claims, wherein the actuating shaft ( 5 ) on its two opposite sides in each case at least one stop element ( 7 ) having.

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