referring to fig1 , there is shown a coffee machine 1 that comprises a water reservoir 2 arranged on a unit 3 , provided with a control unit and a heating unit for heating the water , as well as a pump and the respective switches , wherein this unit 3 is arranged on a base plate 4 . on the top of the coffee machine 1 , a horizontal line 5 projects through which hot water can flow into a filter holder 6 . a filter , for example a filter paper insert containing ground coffee , can be arranged inside the filter holder 6 , wherein the filter holder 6 is secured via a bracket 7 on the coffee machine 1 , so that it can be detached again . the filter holder 6 comprises a bow - shaped handle 8 with an activation element 9 . a container 10 , in particular a glass carafe , with a handle segment 11 is provided below the filter holder 6 and is positioned on a heating plate 12 on the bottom plate 4 . the filter holder 6 is shown in further detail in fig2 . one or several guide elements 13 in the form of grooves or ribs are provided on the handle 8 , so that the activation element 9 can be positioned displaceable on the handle 8 . the filter holder 6 is tapered toward the lower end in the shape of a wedge or truncated cone and comprises an outlet 14 at the lower end which can be closed off by a valve 15 . the valve 15 can be opened with the aid of a lever 16 which is pivoted when the container 10 is inserted below the filter holder 6 . embodied on the filter holder 6 is an essentially horizontal outer filter plate 17 which is provided with an opening that serves to channel the coffee into the carafe in case of an overflow . corresponding channeling devices and an overflow opening can be embodied for this on the outside of the filter holder 6 . the filter holder 6 is embodied flat on its underside 18 and can be placed onto a flat surface , such that it remains standing . a locking mechanism 20 is furthermore provided in the lower region of the filter holder 6 , adjacent to the outlet 14 . the locking mechanism 20 may include two latches 21 that can be locked in place on the bracket 7 . fig3 shows the locking mechanism 20 together with the activation element 9 . the activation element 9 is made of plastic and may be connected integrally with the two latches 21 . the latches 21 are formed onto a lever 22 which is provided with an opening 23 for inserting a pivot pin on the filter holder 6 . the lever 22 is furthermore connected via a bendable web 24 to a plate - shaped section 25 of the activation element 9 . one or several guide elements 26 may be embodied on this activation element 9 to operate jointly with the guide elements 13 that are embodied on the handle 8 , so that the activation element 9 may be positioned displaceable on the handle 8 . the two latches 21 may be pre - stressed toward the outside via a spring 28 , wherein a slanted stop face 27 may be embodied on the outside of the latches 21 , so that the latches 21 are compressed during the insertion into the bracket 7 . fig4 shows the filter holder 6 in the position where it is installed on the bracket 7 . the openings 23 are positioned to be rotatable on the filter holder 6 , and the latches 21 are pushed by the spring 28 toward the outside , so that they extend through an edge 60 on the underside of the filter holder 6 . the edge 60 converges wedge - shaped and encompasses a tip 61 , wherein the edge 60 and the tip 61 can be inserted into an essentially v - shaped receptacle on the bar - shaped bracket 7 . furthermore visible is the valve 15 which can be activated with the aid of the lever 16 . in the locked position , the latches 21 engage in receptacles in the bracket 7 , so that the filter holder 6 is protected against being pulled from the bracket 7 . the assembly of the filter holder 6 without the locking mechanism is shown in fig5 . the bracket 7 is embodied as a holding bar , provided with an essentially v - shaped receptacle 73 , which is surrounded by two legs 70 . a receptacle 71 for accommodating a latch 21 is embodied on the inside of each leg 70 . the v - shaped receptacle 73 comprises inside walls 72 that surround an edge 60 on the underside of the filter holder 6 , as well as the tip 61 . the filter holder 6 additionally comprises a ring - shaped outer edge 62 in the lower region which extends to two webs 63 that are embodied on the underside of the handle 8 . the edge 60 , the tip 61 , the edge 62 , as well as the webs 63 are embodied such that they form a level , lower support surface for the filter holder 6 . the locking mechanism 20 of the filter holder 6 is shown in further detail in fig6 and 7 . fig6 shows the locking mechanism in the locked position in which the spring 28 presses the latches 21 toward the outside . if the activation element 9 is pulled toward the handle 8 , the position shown in fig7 is reached . by pulling the activation element 9 toward the right side , as shown in fig7 , the webs 24 are also correspondingly displaced , thus causing the respective lever 22 to be pivoted around the axis in the opening 23 . by pivoting the levers 22 , the latches 21 are pushed counter to the force of the spring 28 toward the inside and thus are disengaged from the receptacles 71 on the bracket 7 . the filter holder 6 can then be pulled without resistance from the bracket 7 to replace a filter for the ground coffee . following this , the filter holder 6 can again be pushed into the bracket 7 , wherein the activation element 9 can then optionally be pulled tight in order to compress the latches 21 , or the slanted stop faces 27 on the latches are made to engage in the legs 70 of the bracket 7 during the insertion of the filter holder 6 and are thus compressed . the latches 21 can then be locked in place in the receptacles 71 during the insertion of the filter holder 6 . the locked position of the latches 21 is shown in further detail in fig8 . the latches 21 are pressed via the spring 28 into the receptacles 71 , to prevent the filter holder 6 from being pulled out . tolerances which exist of necessity can thus be compensated by providing two latches 21 . for the exemplary embodiment shown herein , two latches 21 are provided for locking in place the filter holder 6 on the bracket 7 . of course , it is also possible to provide only one latch 21 or more than two latches 21 . the locking or unlocking of the activation element 9 can furthermore be realized through a sliding movement or by other mechanical means . in addition , several components and other different locking mechanisms can also be used . it will be understood that the above description of the present invention is susceptible to various modifications , changes and adaptations , and the same are intended to be comprehended within the meaning and range of equivalents of the appended claims .
an arrangement for a coffee machine includes a filter holder adapted to receive a filter to be filled with ground coffee . the filter holder includes an outlet below which a container to be filled with coffee may be positioned . a bracket is arranged on the coffee machine . the bracket and coffee holder are constructed so that the filter holder is removably attached to the bracket . a locking mechanism is attached to the bracket to lock the filter holder in a locked position when the container to be filled with coffee is arranged below the outlet .