CONTAINER-VALVE SUBASSEMBLY FOR A BEVERAGE DISPENSER AND REFRIGERATION DEVICE HAVING THE CONTAINER-VALVE SUBASSEMBLY

Abstract

A container-valve subassembly for use in a refrigeration appliance contains a container and a valve which is arranged on the base of the container. At least one closing body of the valve is releasably connected to the container. The closing body is tiltable between a closed position adjacent to a valve seat and an open position about a pivotal point.

Claims

1. A container-valve subassembly for use in a refrigeration appliance, the container-valve subassembly comprising: a container having a base; and a valve disposed on said base of said container, said valve having a valve seat and at least one closing body being releasably connected to said container, said closing body being tiltable between a closed position adjacent to said valve seat and an open position about a pivotal point.

2. The container-valve subassembly according to claim 1, wherein: said valve has an adapter portion; and said closing body is movably mounted on said adapter portion, said closing body in turn is releasably connected to said container.

3. The container-valve subassembly according to claim 2, wherein said adapter portion is screwed to said base of said container or anchored by a bayonet coupling to said base.

4. The container-valve subassembly according to claim 2, wherein said adapter portion has rails for displaceably guiding said adapter portion along said base of said container.

5. The container-valve subassembly according to claim 4, wherein said adapter portion has two parallel walls and said rails are grooves or tongues extending on said two parallel walls.

6. The container-valve subassembly according to claim 2, wherein said valve seat is formed in said adapter portion.

7. The container-valve subassembly according to claim 1, wherein said valve seat is part of said container.

8. The container-valve subassembly according to claim 2, wherein said valve has a spring and said closing body is acted upon by said spring in the closed position.

9. The container-valve subassembly according to claim 1, wherein the pivotal point is a point of said valve seat, and said closing body being in contact therewith in the open position.

10. The container-valve subassembly according to claim 8, wherein: said valve has a cap, a connecting element and a base plate with an opening formed therein; said valve seat extends in an annular manner around said opening of said base plate; and said closing body and said cap are disposed on different sides of said base plate and are connected via said connecting element extending through said opening, and said spring is compressed between said cap and said base plate.

11. The container-valve subassembly according to claim 10, wherein said cap and said closing body are releasably connected via said connecting element.

12. The container-valve subassembly according to claim 10, wherein said valve has an actuating portion protruding from said closing body in a through-flow direction of said valve.

13. The container-valve subassembly according to claim 12, wherein said valve further has a cup-shaped element which is attached to said actuating portion and has a cup base with a through-passage formed therein.

14. The valve according to claim 13, wherein said valve has a projection extending around said valve seat and engages in said cup-shaped element.

15. The container-valve subassembly according to claim 2, wherein the pivotal point is formed by an axis positioned on said adapter portion.

16. The container-valve subassembly according to claim 8, wherein said closing body forms an arm of a two-armed lever having a first arm and a second arm, said spring is compressed between said second arm of said two-armed lever and said base of said container.

17. The container-valve subassembly according to claim 16, wherein said two-armed lever has a shaft which is extended out of said adapter portion and bears at least one additional lever arm which is exposed outside said adapter portion.

18. The container-valve subassembly according to claim 16, wherein said valve has a sleeve being formed on said base of said container, said sleeve having cutouts formed therein and receiving said closing body, and a axis is also positioned in said cutouts of said sleeve.

19. The container-valve subassembly according to claim 1, wherein said container has at least one support foot which protrudes downwardly from said base below said valve.

20. The container-valve subassembly according to claim 1, wherein said container has a lid on an upper face opposing said base.

21. A refrigeration appliance, comprising: a dispenser niche; a thermally insulating housing defining and surrounding a storage compartment for refrigerated goods and having at least one through-opening formed between said storage compartment and said dispenser niche disposed outside said thermally insulating housing; and a container-valve subassembly releasably mounted in said storage compartment, passing through said through-opening, said container-valve subassembly, containing: a container having a base; and a valve disposed on said base of said container, said valve having a valve seat and at least one closing body being releasably connected to said container, said closing body being tiltable between a closed position adjacent to said valve seat and an open position about a pivotal point.

22. The refrigeration appliance according to claim 21, further comprising a control paddle disposed on a rear wall of said dispenser niche and coupled to said valve.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING

[0034] FIG. 1 is a diagrammatic, perspective external view of a door subassembly of a refrigeration appliance according to the invention;

[0035] FIG. 2 is a horizontal sectional view through the door subassembly, level with the beverage containers mounted therein;

[0036] FIG. 3 is a sectional view through the door subassembly, level with a dispenser niche;

[0037] FIG. 4 is a perspective view similar to FIG. 1 of the door subassembly without the container;

[0038] FIG. 5 is a perspective view of the door from its inner face;

[0039] FIG. 6 is a sectional view through a container-valve subassembly;

[0040] FIG. 7 is a sectional view showing the valve of the container-valve subassembly in the open position;

[0041] FIG. 8 is a sectional view of the container-valve subassembly with a variant of the valve;

[0042] FIG. 9 is an exploded, perspective view of the container-valve subassembly according to a further embodiment;

[0043] FIG. 10 is a sectional view showing the valve of the subassembly of FIG. 9;

[0044] FIG. 11 is a side view of the valve; and

[0045] FIG. 12 is a perspective view of the refrigeration appliance with a modified cover in the open position.

DETAILED DESCRIPTION OF THE INVENTION

[0046] Referring now to the figures of the drawings in detail and first, particularly to FIG. 1 thereof, there is shown a door subassembly 1 and a body 2, shown only partially, form a housing of a domestic refrigeration appliance which surrounds a storage compartment for refrigerated goods. The door subassembly 1 is pivotably articulated on the body 2 about an axis 3.

[0047] The door subassembly 1 contains a door 4 closing the storage compartment, in the narrower sense, and a cover 5 which is pivotable relative to the door 4 about the same axis 3. In the view of FIG. 1 the door 4 is substantially concealed by the cover 5.

[0048] The cover 5 contains a window pane 6 made of clear or tinted glass or plastic, in this case surrounded by a non-transparent frame 7. An upper strip of the frame 7 is L-shaped in section with a limb 8 extending vertically upward from the window pane 6 and a limb 9 angled back from an upper edge of the limb 8 toward the body 2, extending beyond an upper flank of the door 4. Correspondingly, a right-hand strip of the frame contains a limb 10 extending from the right-hand edge of the window pane 6 in the width direction of the door subassembly 1 and a limb 11 which is angled back toward the body but which is divided into two by a handle recess 12, into an upper and a lower half. A central piece 13 of the handle recess 12 extends from the edge into the limb 10.

[0049] FIG. 2 shows a horizontal section through the door subassembly 1 along a plane which extends level with the handle recess 12 just above the central piece 13. In the conventional manner according to the prior art, the door 4 contains fixed external and internal walls 14, 15 which are connected along their edges in order to form a hollow space filled with thermally insulating foam 16. In this case, one respective opening is cut into the external and internal walls 14, 15, an insulating glass pane 17 being inserted therein and being sealingly connected to the walls 14, 15. A laterally open handle groove 18 is recessed in a lateral flank of the door 4. On its side facing the cover 5 the handle groove 18 is delimited by a projection 19. The limb 10 of the cover protrudes laterally over the projection 19 so that a user who grasps the handle recess 12 level with the cutting plane of FIG. 2, catches hold of the limb 10 of the cover 5 but not necessarily the projection 19 of the door 4 so that, when the limb 10 is pulled toward the user, the cover 5 but not the door 4 is pivoted about the axis 3.

[0050] A dispenser niche 20 is accessible simply by pivoting the cover 5 about the axis 3, the dispenser niche being recessed in a lower part of the door 4 and in FIG. 3 being shown in a horizontal section through the door subassembly 1.

[0051] Level with the central piece 13, however, the edge of the limb 10 is flush with the projection 19 so that a user who grips at the level of the central piece, grasps the handle groove 18 and thus pivots the entire door subassembly 1 about the axis 3 and a storage compartment 21 for refrigerated goods in the interior of the body 2 is accessible.

[0052] FIG. 2 shows in section a plurality of beverage containers 22 which are accommodated in a niche 23 which is defined by the insulating glass pane 17 and by flanks of the internal wall 15 of the door 4 adjacent thereto and which is open toward the storage compartment 21. The beverage containers 22 fill the niche 23 in the width direction substantially without clearance. As may be identified in FIG. 1 the beverage containers 22 are visible through the insulating glass pane 17 and the window pane 6. The beverage containers may be provided with text denoting the contents thereof and visible through the panes 6, 17. Preferably, the drink containers 22 are produced from a transparent plastic so that the color and filling state of the contents thereof are visible through the panes 6, 17.

[0053] One respective control paddle 45 is mounted below each beverage container 22 in the dispenser niche 20 and in a manner described below in more detail serves to open a valve and to fill a receptacle, which is pressed against the control paddle 45 in the dispenser niche 20, with a beverage from the container 22 located above.

[0054] FIG. 4 shows a view of the door subassembly 1 from the same perspective as FIG. 1 but without the beverage containers 22 so that a base plate 24 of the niche 23, which might otherwise be covered by the beverage containers 22, is visible through the insulating glass pane 17. For each beverage container 22 the base plate 24 has a through-opening 25 which connects the niche 23 with the dispenser niche 20 located below.

[0055] A partition 26 rises up from a rear edge of the base plate 24, the partition delimiting the niche 23 from the storage compartment 21. On the other side of the partition 26 a door shelf 27 is suspended on the internal wall 15.

[0056] FIG. 5 shows a view of the inner face of the door subassembly 1 facing the storage compartment 21. The beverage containers 22 are received in the niche 23 with sufficient clearance in the vertical direction so that they may be lifted in the niche 23, optionally tilted and removed beyond the partition 26 out of the niche 23.

[0057] In order to simplify the insertion and removal of the substantially cuboidal beverage containers 22 into and out of the niche 23, in each case the containers are provided on the rear face thereof facing the partition 26 with a grip 28, in this case in the form of a projection extending over the entire width of the beverage container 22 which is hollow on its lower face in order to permit the fingers of a user to grasp therein.

[0058] FIG. 6 shows a vertical section through one of the beverage containers 22 and a valve 29 which is connected to the beverage container 22 to form a container-valve subassembly 30. The beverage container 22 contains a cuboidal container lower part 31 which is formed from preferably transparent plastic, the open upper face thereof being closed by a lid 32. The lid 32 in this case is sealed by a projection of the lid 32 engaging in the container lower part 31 and bearing against the inner faces of the walls thereof by a frictional connection.

[0059] An outlet pipe 33 is integrally formed on the base of the container lower part 31, the outlet pipe, when the beverage container 22 is mounted in the niche 23 and rests on the base plate 24, engaging in the through-opening 25 thereof. The outlet pipe 33 has an external thread, an adapter portion 34 of the valve 29 being screwed thereon. The diameter of the adapter portion 34 is dimensioned such that it fills the through-opening 25 over the entire cross section thereof and thus keeps the relatively warm air of the dispenser niche 20 away from the base of the container lower part 31 and thus minimizes the thermal transmission from this air to the contents of the beverage container 22.

[0060] The adapter portion 34 has a base plate 35 which covers the lower end of the outlet pipe 33 and in the screwed-on state the contents of the beverage container 22 are located on the upper face thereof. A connecting element 37 extends through a central opening 36 of the base plate 35. The connecting element in this exemplary embodiment is a pin. A cap 38 is screwed onto the upper end of the pin 37 and a helical spring 39 is resiliently compressed between the cap 38 and the upper face of the base plate 35. A circular disk-shaped closing body 40 is fastened to a central portion of the pin 37 and, by the tensioning of the helical spring 39, the closing body is held in an annular manner around the opening 36, pressed sealingly against a valve seat 41 on the lower face of the base plate 35. The valve seat 41 is surrounded in an annular manner by a projection 42 which protrudes downwardly from the base plate 35.

[0061] The lower end of the pin 37 forms an actuating portion 58, a cup-shaped element 43 being fastened to the lower end thereof. In the mounted state, the element 43 protrudes from above into the dispenser niche 20. A through-passage for the drawn-off contents of the container 22 is formed on the base of the element 43. The through-passageoptionally formed by a plurality of individual openingsis located outside the cutting plane of FIG. 6 and therefore is not visible in FIG. 6. In FIG. 6 it may be identified that a drip edge 59 is formed surrounding the through-passage. A wall 44 of the element 43 surrounding the base in an annular manner overlaps vertically with the projection 42, but does not come into contact with either the projection 42 or the base plate 35 so that it does not hinder a tilting of the closing body 40 into the open position. The diameter of the cup-shaped element 43 is not larger than that of the adapter portion 34 so that when the container 22 is empty the complete container-valve subassembly 30 may be lifted until the element 43 is located in the niche 23 and may be removed therefrom in the direction of the storage compartment 21.

[0062] The control paddle 45, which is also shown in section in FIG. 6, forms an arm of a two-armed lever which is pivotable counter to the force of a restoring spring about an axis 46 perpendicular to the cutting plane. A second arm 47 of the lever is shaped and dimensioned in order to press against the cup-shaped element 43 from the lateral direction, when the control paddle 45 is deflected by a receptacle pressed there against. When the element 43 is deflected, the pin 37 tilts about a pivotal point 60 on the valve seat 41 and the closing body 40 is released from the valve seat 41, as shown in FIG. 7, on the other side of the pivotal point 60 on a part of its periphery. The valve 29 is now open. The projection 42 ensures that liquid passing therethrough is not able to escape laterally between the base plate 35 and the upper edge of the cup-shaped element 43 from the valve 29, but collects in the cup-shaped element 43 and flows into the receptacle via the through-passage thereof.

[0063] The position of the pivotal point 60 on the valve seat 41 is not fixed by the construction of the valve 29 but merely by the direction in which the element 43 is pressed to the side. Therefore, the correct functioning of the valve 29 is not dependent on how far it is screwed onto the outlet pipe 33; it functions in any orientation and, therefore, is always able to be screwed to a sufficient extent as required for a sealed connection on the outlet pipe 33.

[0064] When the empty container 22 has been removed, it may be dismantled by a few hand turns into individual parts which may be easily cleaned in a dishwasher. In particular on the valve 29 after it has been unscrewed from the container lower part 31, the cap 38 is unscrewed from the pin 37, whereupon the pin 37 together with the closing body 40 are released from the adapter portion 34 and all surfaces which have come into contact with a drink and/or liquid are exposed in order to be washed. The cup-shaped element 43 may also be unscrewed from the pin 37 in order to simplify access to the interior of the cup-shaped element 43 which is substantially closed by the closing body 40 when in use.

[0065] The through-openings 25 in the base plate 24 also unavoidably form a weak point in the thermal insulation, in comparison with the foam layer of the door 3 through which they extend, but this is of little consequence in the refrigeration appliance according to the invention, since the cover 5 prevents a free exchange of air between the dispenser niche 20 and the surroundings of the refrigeration appliance and, for this reason, when the cover 5 for access to the dispenser niche 20 is not pivoted to the side, a considerably lower temperature is present in said dispenser niche than in the surroundings.

[0066] In order to achieve a temperature difference which is as great as possible between the dispenser niche 20 and the surroundings, the cover 5 itself may be provided with a foamed thermally insulating layer 48 (see FIGS. 2, 3) and the window pane 6, corresponding to the insulating glass pane, may be configured as double glazing or multiple glazing with a thermally insulating gas filling between the glass panes. Moreoversimilar to a conventional magnetic seal 49 between the door 4 and the body 1a seal 50 may be provided which is preferably fastened to the inner face of the cover 5 and which in the closed position of the cover 5 is clamped in an annular manner around the dispenser niche 20 between the cover 5 and the door 4 and thus any air exchange between the dispenser niche 20 and the surroundings via a gap 51 between the cover 5 and the door 4 may be prevented.

[0067] FIG. 8 shows a cross section through the lower part of a container-valve subassembly which differs from that described above with reference to FIGS. 6 and 7 in several details which are able to be implemented independently of one another.

[0068] A first of these details is that the arrangement of the closing body 40 and the cap 38 is exchanged. The closing body 40 is located in this case on an end of the pin 37 facing the container 22; the cap 38 acted upon by the helical spring 39, however, is remote from the container so that the helical spring 39 is not continuously in contact with the contents of the container.

[0069] According to a second detail, the cap 38 and the cup-shaped element 43 are joined to form a single component.

[0070] According to a third detail, instead of the cap 38 the closing body 40 is screwed to the pin 37.

[0071] Fourth, the adapter portion 34 is dispensed with, the base plate 35 on which the valve seat 41 is located and the projection 42 engaging in the cup-shaped element 43 being in this case integral components of the container 22. Each of these features contributes to the extent to which the projection of the valve 29 downwardly from a base 61 of the container 22 may be reduced.

[0072] Fifth, a plurality of support feet 62 are integrally formed on the base 61, for example in this case in the form of L-shaped profiles arranged on the corners of the base 61. The support feet 62 protrude sufficiently far downward that the valve 29 is positioned entirely between said feet. The container 22, therefore, may be placed on a table, for example, in order to fill it from above without the valve 29 being able to open under the load of the container contents.

[0073] FIG. 9 shows in an inverted and exploded view a container-valve subassembly 30 according to a second embodiment of the invention. A beverage container 22 of the subassembly 30 contains a cuboidal container lower part 31 formed from preferably transparent plastic, the open upper face thereof being closed by a lid 32. The lid 32 is sealed by a projection of the lid 32 engaging in the container lower part 31 and bearing against the inner faces of the walls thereof by a frictional connection.

[0074] A short tubular outlet pipe 33 is integrally formed on the base 61 of the container lower part 31. A lower end of the outlet pipe 33 forms a valve seat 41 of a valve 29. Around the outlet pipe 33 extends a sleeve 63 which is also joined to the base 61 in one piece. The sleeve 63 has an elongated bottom surface. Two side walls 64 of the sleeve 63 extend parallel to one another in the longitudinal direction. In each case they have a downwardly open cutout 65.

[0075] Two ribs 66 protrude from the base 61 on both sides of the side walls. The ribs 66 have a hook-shaped cross section and together define two grooves 67 which are open toward the side walls 64 and extend in the longitudinal direction.

[0076] A third hook-shaped rib 68 is arranged transversely to the ribs 66 opposite a front wall 69 of the sleeve and defines a groove 70 which is open toward the front wall 69. The spacing between said rib and the front wall 69 is larger than that between the ribs 66 and the side walls 64 opposing said ribs.

[0077] Support feet 62 are integrally formed on the edges of the base 61. The support feet 62 could, for example, be L-shaped profiles arranged on the corners of the base 61, as mentioned with reference to FIG. 8; in the view of FIG. 9 in each case two such L-shaped profiles are joined to form a C-shaped profile.

[0078] The cutouts 65 divide the sleeve 63 into two halves, one placed toward the middle of the base 61 which receives the outlet pipe 33 and one adjacent to an edge of the base 61. The latter half provides space for a helical spring 39.

[0079] The cutouts 65 are provided in order to receive a shaft 71 of a two-armed lever 72. Two lever arms 73, 74 protrude from a central portion of the shaft 71. When the shaft 71 is placed in the cutouts 65, both lever arms 73, 74 are located inside the sleeve 63. The lever arm 73 and a sealing ring 75 mounted thereon form a closing body 40 of the valve 29. The helical spring 39 compressed between the base 61 and the lever arm 74 holds the closing body 40 pressed against the valve seat 41.

[0080] Two further lever arms 76 are integrally formed on the ends of the shaft 71 protruding on both sides of the sleeve 63 over the side walls 64, and which, as described in more detail below, cooperate with the control paddle 45 of the dispenser niche 20.

[0081] An adapter portion 34 ensures that the valve 29 and the container 22 are held together. The adapter portion 34 has in this case the shape of an elongated box with an open upper face, longitudinal walls 77, front walls 78, 79 and a base plate 80 in which an outlet pipe 81 is located. The box is dimensioned in order to receive the sleeve 63 with clearance in its longitudinal direction. On the longitudinal walls 77 of the box are located two short springs 82, a further spring 83 being located on the front wall 79 remote from the observer in FIG. 9. The longitudinal walls 77 in each case have a cutout 84 which is open toward the edge.

[0082] When the front wall 79 of the adapter portion 34 and the front wall 69 of the sleeve 63 come into contact with one another, the adapter portion 34 may be slipped sufficiently far over the sleeve 63 that its walls 77, 78 come into contact with the base 61. By the subsequent displacement of the adapter portion 34 in the longitudinal direction, the springs 82 spring back into the grooves 67 and the spring 83 springs back into the groove 70. Thus the adapter portion 34 is anchored on the container 22.

[0083] FIG. 10 shows the lower part of the container-valve subassembly 30, in this case in the normal orientation, in a section along a plane which extends centrally between the side walls 64 of the sleeve 63 in the longitudinal direction thereof. By the cutouts 65, 84 overlapping one another, they form bearings on both sides of the lever arms 73, 74, the lever 72 being held therein pivotably about an axis 85. FIG. 10 shows the lever 72 in an open position in which the closing body 40 is spaced apart from the valve seat 41 and the helical spring 39 is highly compressed.

[0084] FIG. 11 shows the container-valve subassembly 30 mounted in the refrigeration appliance in a side view, also in the open position. The control paddle 45 assigned to the subassembly 30 forms a lever arm of a two-armed lever which is pivotable about an axis 87. The second lever arm is forked into two tines 88 which enclose the adapter portion 34 on both sides. By means of a receptacle 86 pressed against the control paddle 45 in the dispenser niche 20, the lever is deflected about the axis 87 counterclockwise. As a result, the tines 88 press the lever arms 76 and hold the valve 29 open. As soon as the control paddle 45 is released, the helical spring 39 drives the valve 29 back into the closed position.

[0085] In order to dismantle and clean the valve 29, it is sufficient to displace the adapter portion 34 so that the engagement between the springs 82, 83 and 67 and 70 is released again.

[0086] In the refrigeration appliance shown in FIG. 12, as in the case of FIG. 1 the housing contains a door subassembly 1 consisting of the door 4 and cover 5 and a body 2. The cover 5 in this case is a rectangular flat plate, which is preferably made of safety glass and which in the closed position conceals the door 4. In a central region 52 the plate is transparent so that in the closed position of the cover the insulating glass pane 17 and the dispenser niche 20 are visible through the central region 52. The containers 22 of a plurality of container-valve subassemblies, as described above, are located behind the insulating glass pane. An edge region 53 may be provided with a non-transparent coating, which in the closed position, for example, conceals fittings 54 via which the cover 5 is connected to the door 4. If present, the seal 50 is bonded to the inner face of the coating of the edge region 53.

[0087] The lateral edge 55 of the cover remote from the fittings 54 in this case is linear. A handle groove 18 is formed in a flank 56 of the door 4 located behind the edge 55 in the closed position, and a projection 19 which extends between the handle groove 18 and the front face of the door 4 is interrupted in a central portion 57. If a user grips around the edge 55 level with this central portion 57, the door 4 is not grasped so that only the cover 5 is able to be opened. If, however, the user grips around the edge 55 above or below the central portion 57, the rear face of the cover 5 is not grasped, since it is concealed by the projection 19. In this case, the user is only able to grip with the fingers behind the projection 19 in the handle groove 18 and the entire door subassembly is pivoted away from the body 2.

[0088] The following is a summary list of reference numerals and the corresponding structure used in the above description of the invention: [0089] 1 Door subassembly [0090] 2 Body [0091] 3 Axis [0092] 4 Door [0093] 5 Cover [0094] 6 Window pane [0095] 7 Frame [0096] 8 Limb [0097] 9 Limb [0098] 10 Limb [0099] 11 Limb [0100] 12 Handle recess [0101] 13 Central piece [0102] 14 External wall [0103] 15 Internal wall [0104] 16 Hollow space [0105] 17 Insulating glass pane [0106] 18 Handle groove [0107] 19 Projection [0108] 20 Dispenser niche [0109] 21 Storage compartment [0110] 22 Beverage container [0111] 23 Niche [0112] 24 Base plate [0113] 25 Through-passage [0114] 26 Partition [0115] 27 Door shelf [0116] 28 Handle [0117] 29 Valve [0118] 30 Container-valve subassembly [0119] 31 Container lower part [0120] 32 Lid [0121] 33 Outlet pipe [0122] 34 Adapter portion [0123] 35 Base plate [0124] 36 Opening [0125] 37 Connecting element, pin [0126] 38 Cap [0127] 39 Helical spring [0128] 40 Closing body [0129] 41 Valve seat [0130] 42 Projection [0131] 43 Cup-shaped element [0132] 44 Wall [0133] 45 Control paddle [0134] 46 Axis [0135] 47 Arm [0136] 48 Thermally insulating layer [0137] 49 Magnetic seal [0138] 50 Seal [0139] 51 Gap [0140] 52 Central region [0141] 53 Edge region [0142] 54 Fitting [0143] 55 Edge [0144] 56 Flank [0145] 57 Central portion [0146] 58 Actuating portion [0147] 59 Drip edge [0148] 60 Pivotal point [0149] 61 Base [0150] 62 Support foot [0151] 63 Sleeve [0152] 64 Side wall [0153] 65 Cutout [0154] 66 Rib [0155] 67 Groove [0156] 68 Rib [0157] 69 Front wall [0158] 70 Groove [0159] 71 Shaft [0160] 72 Two-armed lever [0161] 73 Lever arm [0162] 74 Lever arm [0163] 75 Sealing ring [0164] 76 Lever arm [0165] 77 Longitudinal wall [0166] 78 Front wall [0167] 79 Front wall [0168] 80 Base plate [0169] 81 Outlet pipe [0170] 82 Spring [0171] 83 Spring [0172] 84 Cutout [0173] 85 Axis [0174] 86 Receptacle [0175] 87 Axis [0176] 88 Tines