Teat cup

(42) Date of commencement of the patent: 15. 5.1998 (45) Date of issue: 28.12.1998 (56) Documentation:

(73)

Patentee:

DE 25155808

BUCHRUCXER KARLHEINZ MAG.

4-4100 OTTENSHEIM, UPPER AUSTRIA (AT).

(54) Teat cup (57) A teat cup (1) for fluid treatment of milking teat, consists of an elastically compressible storage container (2) for the treatment liquid and a dipping cup (4) for the teat to be treated, which can be screwed onto the vats container (2), wherein the immersion cup (4) closed in relation to the reservoir interior comprises a spraying device (8) distributed around the circumference of the cup, Having liquid riser spray nozzles via a riser connection from the reservoir in order to achieve an economical and thorough teat treatment with skillful handling, the immersion cup (4) provided as an insert which can be suspended in the reservoir opening (3) is provided in the upper edge region with wall bores (9) forming the spray nozzles, each connect to the outside of the cup on its own riser (10).

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AT 404 537 jutesreaa

AT 404 537 Β

The invention relates to a teat cup for the liquid treatment of milk animal twigs, consisting of an elastically compressible storage container for the treatment liquid and a dip cup which can be screwed tight to the storage container for the teat to be treated, the immersion beaker, which is closed relative to the reservoir interior, has a spray device distributed around the beaker circumference, Having a riser connection from the reservoir ago liquid vortexable spray nozzles.

These teat cups are used for cleaning, disinfection and care of the teats of dairy animals before and after milking, which must satisfy increasingly stringent requirements due to the increasingly stringent hygiene regulations, so that, for example, a multiple use of cleaning and disinfecting solutions because of the risk of inactivation or contamination of the Solution no longer satisfied. The time required for teat treatment amount of treatment liquid is therefore usually used only once and then discarded, whereby, however, the consumption of treatment liquid increases accordingly and makes frequent refilling of the reservoir necessary, which is not only time-consuming and cumbersome, but especially uneconomical and polluting ,

Such a disposable use system can be carried out for example by a device described in DE 29 46 764 A for disinfecting teats, in which the dip cup is screwed onto the reservoir and receives a ring line with radially inwardly directed nozzles for spray treatment of the teats. The loop is supplied via a riser with treatment liquid, which riser within the cup additionally has a directed to the teat cup mouth. This device is quite cumbersome, brings due to the cylindrically shaped dip cup despite the spray considerable liquid consumption, shows due to the liquid supply to the spray through a single connected to a riser supply only insufficient cleaning effect and can also by the opening into the dip cup Riser pipe does not prevent a backflow of the used treatment liquid.

The invention is therefore an object of the invention to overcome these deficiencies and to provide a teat cup of the kind described, which allows a practical, fast and safe cleaning and disinfection of the teats and remains economical in the liquid consumption.

The invention solves this problem in that the provided in a conventional manner as attachable in the reservoir opening insert immersion cup is provided in the upper edge region with the spray nozzle forming wall bores, which connect to the cup outside each to its own riser. Due to their circumferential distribution, these spray nozzles, which can be charged with liquid in each case, produce a star-shaped spray pattern which covers the entire circumference of the teat wall and rinses off with pressure. Even with a comparatively small amount of liquid, the liquid pressure leads to a high detaching force and excellent cleaning action, and by immersing the teatcup in the treatment liquid collecting at the bottom of the cup, the corresponding cleaning and treatment of the mouth of the bar channel as the most important part of the teat is guaranteed in any case. In this case, the teat cup remains handy through the immersion cup suspended in the reservoir and also easy and quick to handle due to the free cup opening. By choosing the bore diameter of the liquid consumption and the spray pressure can be influenced to the desired extent and also an adjustment of the spray to different Viskoseeigenschaften the treatment liquid made and, since the cup bottom is not penetrated by a riser and the nozzle openings are in the upper edge region, there is no danger rewinding the spent fluid into the reservoir.

As such, it would be possible to align the nozzle bores radially inwardly with the teat, but this complicates the manufacturing process. A particularly simple construction is obtained when the dip cup in the upper edge region forms a circumferential, stepwise expanding nozzle chamber, open in the bottom surface of the axially disposed wall bores and in the above from a guide ring with a mouth opposite deflection for the spray jets can be inserted. These dip cups can be produced without expensive tools as plastic injection molded parts and lead due to the deflection of the liquid jets ejected axially upwards from the wall bores along the deflection surfaces of the guide ring not only to a desired spraying direction to the cup axis, but also to a better distribution of spray jets in the circumferential direction, so that with just a few holes, For example, five holes is given a the entire teat surface detecting spray action with high detachment force.

Runs the deflection radially inwardly with a bottom slope to Achsnormalen, ejection of the liquid over the cup edge is avoided and also equalized the spray effect axially towards the bottom.

AT 404 537 Β

It is also favorable if the dip cup has a form adapted to the teat mold in a manner known per se, so that only a narrow empty space remains between the inserted teat and the inner wall of the cup and a sufficient bottom filling of the cup for treating the teat bowl region with the bar channel quickly sets ,

In the drawing, the subject invention is illustrated, for example, with reference to an axial section through a teat cup according to the invention in more detail.

A teat cup 1 for liquid treatment of teats consists of an elastically compressible reservoir 2 for the treatment liquid and a submersible cup 4 which can be suspended in the reservoir opening 3 and which is adapted in shape to the teat mold and into which the teat to be treated is introduced. The immersion cup 4 formed as an insert closed towards the reservoir interior rests with an outwardly angled edge board 5 at the upper opening edge 6 of the container opening 3 and is screwed tightly to the reservoir 2 with a union nut 7.

The dip cup 4 is equipped with a spraying device 8, which comprises in the upper edge region circumferentially distributed wall bores 9 as spray nozzles and the spray nozzles associated risers 10. The dip cup 4 forms in the upper edge region a circumferential, step-shaped widening nozzle chamber 11, in the bottom surface 12, the axially extending wall holes 9 open, wherein on the outside of plug projections 13 are formed for the riser approach. In the nozzle chamber 11, a guide ring 14 is suitably inserted from above, which is fastened together with the dip cup 4 via the union nut 7. The guide ring 14 has a the muzzle of the wall bores 8 opposite deflecting surface 15, which deflects the high-pressure liquid jets radially inwardly and downwardly. For this purpose, the deflection surface 15 runs radially inwards with a slope normal to the axis normal N at an acute angle α.

The teat cup 1 according to the invention allows economical and yet thorough cleaning and care of the teats, which are sprayed with cleaning liquid when immersed in the dip tank 4 by squeezing the storage container 2 through the wall openings 9, which are filled with fluid through the riser pipes 10, the spray jets being sprayed over the deflection surface 15 of the Guide ring 14 directed to the teat and thereby circumferentially and axially distributed. The adapted to the teat mold cup shape results in only a small space between the teat and cup, so that the cup quickly fills the bottom and also ensures a dip cleaning the teatcup. After the teat treatment, the used treatment liquid is dumped without fear of backflow of the used treatment liquid into the storage container.