EP1846711B1 - Refrigerating device with pull-out carrier for refrigerated goods - Google Patents

Description

The present invention relates to a refrigerator with a refrigerator in which a refrigerated goods with the help of telescopic extensions is displaced The use of telescopic extensions for sliding suspension of refrigerated goods carriers, which may be baskets, plates or the like, in a refrigerator is well known , Such a telescopic extension generally comprises two intermeshing rails, which are displaceable relative to one another in their longitudinal direction, in each case by unrolling a roller fastened to a first rail on the other rail.

To ensure linear guidance of the rails, both must be supported against each other at at least two points spaced apart in their longitudinal direction. The distance between these points is the lower, the farther the rails are pulled apart, so that the more the stability of the telescopic rail suspension decreases the more, the farther a refrigerated goods suspended from them is pulled out of the refrigerator of the refrigerator. It is therefore necessary to limit the mobility of the rails against each other so that the bases can not come too close to each other. The freedom of movement of the rails is therefore generally much smaller than their length. Therefore, it is not possible to make the freedom of movement of a refrigerated goods carrier so great that it can be completely pulled out of the refrigerator with a simple, constructed of two rails telescopic extension.

To achieve this goal, telescopic extensions are needed with at least three mutually movable rails. These are significantly more expensive than those with two rails. It is therefore not economical for a manufacturer who wants to offer refrigeration appliances in a wide range of prices and equipment to consistently use telescopic extensions with three rails. However, if the manufacturer's model range includes both two and three or more rails, the problem arises that the different types of telescopic extensions differ in their space requirement. Since the outer dimensions of the refrigerators are given in raster levels and their wall thickness is not very variable, the different space requirements of the different types of telescopic extensions in the Construction of refrigerated goods are taken into account, ie for different models of refrigerators, which differ in the type of extracts used, different refrigerated goods are required. These must therefore be produced in a variety of types in each case comparatively small quantities, which makes the production more expensive.

The generic patent US 2,318,363 shows a refrigerator comprising a pull-out drawer.

The publications EP 1 621 836 A2 . EP 1 621 838 A2 and EP 1 617 160 A1 , which are state of the art according to Art. 54 (3) EPC, each show a refrigerator comprising a refrigerator with an extendable drawer. The drawer comprises a frame on which a basket is arranged. At a bottom of the frame, a guide rail of a telescopic extension is attached.

Object of the present invention is to minimize the number of different parts required for the production of different refrigerator models, both those with a fully removable refrigerated goods carrier as well as those with a partially extractable.

The object is achieved by ein.Kältegerät with a refrigerator in which a first refrigerated goods with the help of two telescopic extensions is displaceable, in which the refrigerated goods is supported on each telescopic extension using at least one adapter and a Kühlgutträger supporting contact surface of the adapter on the Height of the telescopic extensions is. By using the adapter, the contact surface is placed higher than the telescopic extensions, it can also be positioned in the width direction of the refrigerator housing largely free and above all independent of the width of the telescopic extensions used, which allows the use of uniform refrigerated goods in conjunction with different widths telescopic extensions.

A maximum width of the refrigerated goods carrier and consequently a good space utilization are achieved when the contact surfaces of the adapter on both sides of the refrigerated goods are spaced as far as possible, especially if they are at least partially perpendicular extend over the telescopic extensions to which the respective adapter are attached.

If the telescopic extensions used are narrow, especially in the case of pull-outs with only two rails, the contact surface can also come to rest over a gap between the telescopic extension and the refrigerated goods container.

The width of this gap is preferably at least as large as that of the narrow telescopic extension itself, so that when needed in the space another Telescopic extension of the same type in series with the existing can be mounted to increase the freedom of movement of the refrigerated goods.

The adapter is preferably angular, with a laterally attached to the associated telescopic extension vertical leg and a contact surface having horizontal leg.

The horizontal leg can rest for better stability because of directly on a top of the telescopic extension.

In order to simplify the mounting of the refrigerated goods carrier in the refrigeration device, the adapters are preferably provided with latching elements for latching to a respective complementary latching element of the refrigerated goods carrier.

Further, it is preferred that the adapters each have a front and a rear locking element, wherein the rear with the complementary locking element of the first refrigerated goods by a movement substantially parallel to the displacement direction of the first Kühlgutträgers and the front with the complementary locking element of the first Kühlgutträgers by a movement can be latched substantially perpendicular to the displacement direction of the first refrigerated goods carrier. Thus, the front locking element prevents a disengagement, if only pulled on the refrigerated goods in the horizontal direction to pull it out of the refrigerator. An assembly of the refrigerated goods carrier is possible in a simple manner by first the horizontal portion of the first obliquely held Kühlgutträgers is moved to bring the rear locking elements for locking, and then the front portion is lowered to lock the front.

For this purpose, the rear locking element of the adapter can expediently be designed as an undercut rigid head and the complementary latching element of the refrigerated goods carrier as an open edge in the direction of displacement slot.

By contrast, the front latching element is preferably a head which is flexibly deformable in each case during engagement and disengagement of the complementary latching element.

This head can be provided with a flexible in the direction of displacement flank, which holds in the latched state, the complementary locking element of the refrigerated goods carrier against a stop, so as to keep the refrigerated goods without clearance on the telescopic extension. If the complementary latching element of the refrigerated goods carrier is a hole into which the head engages, the stop may be formed by an edge facing away from said flexible flank of the head.

Preferably, the front and the rear locking element are each formed separately from each other on a front or a rear adapter of each telescopic extension. This bipartite makes it possible to use the same adapter both on a right and on a left telescopic extension or on telescopic extensions of different lengths.

In this case, it is further preferred that front and rear adapters each have a plane of symmetry perpendicular to the direction of displacement of the refrigerated goods carrier, so that the two mounted on the right or left telescopic extension front adapter or the two mounted on right and left telescopic extension rear adapter each other like mirror images lie opposite.

The freedom of movement of two mutually movable rails of each telescopic extension is preferably limited to less than two-thirds of its length. Although a greater freedom of movement would in principle be achieved, but would then occur in the maximum extended state between the rails torques require a high degree of strength of the rails and thus cause a cost-increasing significant cost of materials. Such a great freedom of movement of the individual telescopic extension is not required in the context of the present invention, because in order to achieve greater freedom of movement, preferably two telescopic extensions connected in series are used.

Refrigerated goods carriers held via individual telescopic extensions and refrigerated goods carriers held in series via telescopic extensions can be combined in one and the same refrigerator.

The shape and arrangement of the complementary locking elements of the two refrigerated goods carriers are preferably the same in such a case. This is z. B. possible to mount at least one of the two refrigerated goods in the place of the other.

To simplify the production, it can be useful to form each refrigerated goods carrier in several parts, from a base body and two support parts attached to the base body, wherein the complementary locking elements are formed on the support parts. This makes it possible in particular to form the base body of sheet metal, while the support parts z. B. may be formed by spray forming.

In order to ensure low-backlash guidance of the refrigerated goods carrier, the two rails of each telescopic extension are preferably guided relative to one another with the aid of linear ball bearings.

Fig. 1

eine perspektivische Ansicht eines Kältegeräts, an dem die vorliegende Erfindung verwirklicht ist;

Fig. 2

eine perspektivische Ansicht von zwei Kühlgutträgern des Kältegeräts aus Fig. 1;

Fig. 3

eine perspektivische Ansicht eines linken Teleskopauszugs des unteren Kühlgutträgers;

Fig. 4

jeweils Fragmente einer Teleskopauszugschiene und eines Adapters, die die Befestigung des Adapters an der Schiene veranschaulichen;

Fig. 5

den Teleskopauszug aus Fig. 3 mit darauf montiertem Trägerteil;

Fig. 6

einen Schnitt durch den Teleskopauszug der Fig. 3 und 5 und dessen Umgebung in Höhe eines Adapters;

Fig. 7

eine perspektivische Ansicht eines kombinierten Teleskopauszugs für den oberen Kühlgutträger aus Fig. 2;

Fig. 8

den kombinierten Teleskopauszug aus Fig. 7 mit daran montiertem Trägerteil, gesehen von dessen der Gehäusewand zugewandten Seite her;

Fig. 9

eine perspektivische Ansicht des kombinierten Teleskopauszugs und des Trägerteils, gesehen vom Kühlraum des Kältegeräts her; und

Fig. 10

einen Schnitt analog zu Fig. 5 durch den kombinieren Teleskopauszug und dessen Umgebung in Höhe eines Adapters.

Further features and advantages of the invention will become apparent from the following description of embodiments with reference to the accompanying figures. Show it:

Fig. 1

a perspective view of a refrigerator, to which the present invention is implemented;

Fig. 2

a perspective view of two refrigerated goods carriers of the refrigerator Fig. 1 ;

Fig. 3

a perspective view of a left telescopic extension of the lower refrigerated goods carrier;

Fig. 4

fragments of a telescopic extension rail and an adapter, respectively, illustrating the attachment of the adapter to the rail;

Fig. 5

the telescopic extension Fig. 3 with mounted on it carrier part;

Fig. 6

a section through the telescopic extension of FIGS. 3 and 5 and its surroundings in the amount of an adapter;

Fig. 7

a perspective view of a combined telescopic extension for the upper refrigerated goods from Fig. 2 ;

Fig. 8

the combined telescopic extension Fig. 7 with carrier part mounted thereon, seen from its side facing the housing wall;

Fig. 9

a perspective view of the combined telescopic extension and the support member, seen from the refrigerator of the refrigerator forth; and

Fig. 10

a section analogous to Fig. 5 by combining telescopic extension and its environment in the amount of an adapter.

Fig. 1 shows a perspective view of a refrigerator with a body 1 and a door 2. In a refrigerator 3 inside the device are two refrigerated goods 4, 5 in the form of pull-out boxes exemplified. The pull-out boxes 4, 5 are held displaceable in the figure not visible, suspended on the side walls of the body 1 telescopic extensions. The upper drawer 4 has a smaller depth than the lower 5, to leave room for a door lock 2 attached to the door 2.

In the upper area of the cooling space 3, which is left empty in the figure, further refrigerated goods shelves, as required in the form of further pull-out boxes or in the form of stationary or displaceable plates, can be mounted.

Fig. 2 shows the two pull-out boxes 4, 5 in a perspective view from its rear side. The pull-out boxes 4, 5 each comprise a basket formed of perforated sheet metal, the front side of which facing the door being faced with a plastic shield 7. This shield 7 extends in the upper drawer 4 over its entire height, the lower box 5 only over part of the height, so that between the shield 7 and the overlying box 4, a penetration opening is formed, as in Fig. 1 to recognize.

The side walls of the baskets each have vertical upper and lower wall portions 8 and 9 and between these inclined shoulders 10 which extend towards each other towards the bottom. At the shoulders 10 is a molded injection molded plastic part 11 each fixed in the Fig. 4 . 8 and 9 can be seen in more detail. The support members 11 in turn are supported via adapters on telescopic extensions 12 and 13 respectively.

The telescopic extensions 13, on which the lower pull-out box 5 is supported, each have a pair of interlocking rails. The freedom of movement of these rails against each other is between 50 and 80% of their length; Here it is equal to the depth of the overlying pull-out box 4, so that the drawer 5 is pulled out in its fully extended position to the stop completely under the overlying box 4 and freely accessible on its entire top.

Fig. 3 shows a perspective view of one of the telescopic extensions 13 of the lower drawer 5, namely the left drawer 13 from the perspective of a viewer in the refrigerator 3 viewer. The drawer comprises two rails bent from sheet steel, an outer rail 14 of approximately C-shaped cross-section and an inner rail 15 engaging the cavity of the outer rail 14. Opposite legs of the rails 14, 15 define two cylindrical channels 16 in which in each case a plurality of balls, not visible in the figure, are accommodated, which guide the rails 14, 15 with little play and are easy to move relative to one another. A bolt 17 projects from the front end of the outer rail 14 into the space between the rails 14, 15. Its contact with a mounted on the inner rail 15, in the figure just visible rubber buffer 18 defines a limit to the freedom of movement of the rails 14, 15 against each other.

A front adapter 19 and a rear plastic adapter 20 are attached to the outer rail 14. The adapters 19, 20 have an angular shape with a roughly prismatic vertical leg 21 and a horizontal leg 22 resting on the upper leg of the rail 14.

From the top 56 of the adapter 19 and 20 are each a locking element 23 and 24 from. The locking element 23 of the front adapter 19 has in section approximately the shape of the letter T, wherein at the ends of the crossbar of the T two down and initially apart, then again towards each other extending elastic leg 25 are formed. The latching element 24 of the rear adapter 20 is a rigid pin which has a forwardly directed nose 26 at its upper end.

Fig. 4 is intended to illustrate the anchoring of the adapters 19, 20 on the rail 14. Shown are each separated from each other a fragment 27 of the rail 14 and a side facing this adapter 19 or 20, wherein the type of anchoring in both adapters 19, 20 is the same. The fragment 27 facing wall 28 of the adapter carries 4 rigid latching hooks 29 and a by a U-shaped or V-shaped slot from the wall 28 cut free elastic tongue 30, from the top of a wedge 31 protrudes. These are a round hole 32 and four square holes 33 of the rail 14 opposite, the latter each in the form of a rectangle, which is extended at its lower edge by a short slot. To anchor the adapter 19 or 20 to the rail 14, the latching hooks 29 are inserted into the angular holes 33, and at the same time, first the tongue 30, the wedge 31 abuts against the closed wall of the rail 14, in the hollow body of the Adapters pushed back into it. When the latching hooks 29 are completely pushed through the holes 33 and the wall 28 of the adapter abuts against the rail 14, the adapter can be moved downwards so that the shanks of the latching hooks 29 engage in the slots of the holes 33 and the horizontal leg 22 the adapter comes to rest on the upper leg of the rail 14. The wedge 31 hits the round hole 32 and snaps into it. If this is done, the adapter can only be solved by the rail 14 by first with a tool, the wedge 31 pushed out of the hole 32 and then the adapter is raised.

Fig. 5 again shows a perspective view of the telescopic extension 13 Fig. 3 The carrier part 11 comprises an elongated base plate 34 which is supported on the upper sides 56 of the adapters 19, 20. At a front end of the base plate 34, a rectangular hole 35 is formed through which the locking element 23 of the adapter 19 is inserted therethrough. The downwardly towards each other running sections of the elastic legs 25 of the locking element 23 press against the front and rear edge of the hole 35 and hold the base plate 34 as play against the top 56 of the adapter 19 is pressed. The pin 24 of the rear adapter 20 engages in a rearwardly open slot 36 of the base plate 34, on its upper side 56 is the base plate 34 by its own weight.

At both ends of the base plate 34, above the hole 35 and the slots 36, an abutment for the basket of the pull-out box 5 is formed in each case. The abutment each comprises an inclined plate 37 which is connected at its lower edge with a basket facing edge of the base plate 34, and which combines at its upper edge with two emanating from the base plate 34 vertical struts 38 to a U-profile section 39. In the middle of the plate 37 is a shallow recess 40 and in the middle of which in turn a bore 41 is formed, which are flared toward the back of the plate 37 to a hexagonal cross-section.

Fig. 6 shows a section through the telescopic extension and its surroundings in height of the adapter 19. As this section shows, the bore 41 of the plate 37 serves to her by means of a screw 42 and a form-fitting in the hexagonal expansion of the bore nut 43 received the shoulder 10 of the basket to attach. An unlatched from the upper portion 8 of the basket side wall tab 44 is supported on the upper edge of the U-profile section 39 from.

In the section, the already mentioned balls 45 can be seen, which, in each case led to several in a cage 46, are mounted in the channels 16 between the rails 14, 15.

Further, it will be seen that there is a gap 47 between the outer rail 14 and the lower wall portion 9 of the basket opposite thereto, which is partially filled by the hollow vertical leg 21 of the adapters 19 and 20. The width of this gap 47 is greater than that of the telescopic extension 13, so that it is possible, if necessary, to accommodate a second telescopic extension, without having to change the dimensions of the pull-out box 5.

In Fig. 2 it can be seen that such an arrangement of two coupled telescopic extensions is provided on each side of the upper pull-out box 4. These coupled telescopic extensions give the drawer 4 a freedom of movement that is greater than its depth, so that it can be pulled out completely under an above, not shown refrigerated goods of the same depth.

A perspective view of two telescopic extensions 48, 49 connected in series on the right side of the pull-out box 4 from the perspective of the user standing in front of the refrigerator compartment 3 is shown in FIG Fig. 7 shown. The structure of the telescopic extensions 48, 49 with a inner rail 50 and 52 and an outer rail 51 and 53, which are guided by means of balls 45 against each other movable, is the same as in the telescopic extension 13 and therefore need not be explained again. The rails 51, 52 are through in Fig. 10 shown rivets 58 rigidly connected to each other, of which one or the other can serve as a stop for limiting the freedom of movement of the extracts 48, 49 at the same time.

Front and rear adapters 54 and 55 are on the rail 53 in an analogous manner, as above with reference to Fig. 4 described, clamped. Instead of a wide hollow vertical leg as in the adapters 19, 20 here only a narrow, plate-shaped leg is provided, on the visible side of the elastic tongue 30 and the latching hooks 29 opposite recesses 57 can be seen. The latching elements 23, 24 carried by the adapters 54, 55 are the same as in the adapters 19, 20. Therefore, these adapters 54, 55, as in the Fig. 8, 9 See also, the same type of support part 11 can be mounted as already with respect to Fig. 5 explained.

In the view of Fig. 8 showing the side of the body 1 facing side of the telescopic extensions 48, 49 and the support member 11, in particular the hexagonal widening of the holes 41 and the rear, to the rear wall of the body 1 out, open slot 36 in the base plate 34 of the support member 11 to recognize. The slot has edges diverging toward the rearward end of the base plate 34 to facilitate attachment of the slot to the latching element 24 of the rear adapter.

As in Fig. 10 can be seen by the additional telescopic extension 49 and the plate-like base body of the adapter 54, 55 of the space 47 side of the wall portion 9 of the basket practically filled. While in the adapters 19, 20, the locking projections 23, 24 are substantially perpendicular to extension of the vertical legs 21, they are located at the adapters 54, 55 substantially above the rail 53; The position of the locking projections 23 and 24 is the same as in FIG. 4 with respect to the side wall of the body or the drawer 48 mounted directly thereon Fig. 6 shown so that identical support members 11 and baskets can be stored at will on a simple statement like 13 or a double extract as 48, 49.

Claims (17)

1. Refrigerating appliance with a cooling chamber (3), in which a cooling stock carrier (5; 4) is displaceable with the help of two telescopic drawers (13; 48, 49), wherein the cooling stock carrier (5; 4) is mounted on each telescopic drawer (13; 48, 49) with the help of at least one adapter (19; 20), characterised in that a contact surface (56), which supports the cooling stock carrier (5, 4), of the adapter (19, 20) lies above the height of the telescopic drawers (13; 48, 49).
2. Refrigerating appliance according to claim 1, characterised in that the contact surface (56) of the adapter (19, 20) extends at least in part perpendicularly above the telescopic drawer (48, 49) to which it is fastened.
3. Refrigerating appliance according to an claim 1, characterised in that the contact surface (56) of the adapter extends at least in part vertically above an intermediate space (47) between cooling stock carrier (5) and telescopic drawer (13).
4. Refrigerating appliance according to any one of the preceding claims, characterised in that the adapter (19, 20) is of angular form with a vertical limb laterally fastened to the telescopic drawer and a horizontal limb forming the contact surface.
5. Refrigerating appliance according to any one of claims 1 to 4, characterised in that the cooling stock carrier (5, 4) supported by the adapter (19, 20) projects by its lateral edge beyond the adapter (19, 20).
6. Refrigerating appliance according to any one of claim 1 to 5, characterised in that the adapter (19, 20) carries an intermediate support (11) connected with the cooling stock carrier (5, 4).
7. Refrigerating appliance according to any one of the preceding claims, characterised in that the adapter (19; 20) comprises detent elements (23, 24) for detenting at a respective complementary detent element (35, 36) of the first cooling stock carrier (5).
8. Refrigerating appliance according to claim 7, characterised in that the adapters (19; 20) each comprise a front and rear detent element (23, 24), wherein the rear detent element (24) is detentable with the complementary detent element (36) of the first cooling stock carrier (5) by a movement substantially parallel to the displacement direction of the first cooling stock carrier (5) and the front detent element (23) is detentable with the complementary detent element (35) of the first cooling stock carrier (5) by a movement substantially perpendicular to the displacement direction of the first cooling stock carrier (5).
9. Refrigerating appliance according to claim 8, characterised in that the rear detent element (24) of the adapters (19; 20) has a rigid head and the detent element complementary therewith is a slot (36), which is open at the edge in displacement direction, of the cooling stock carrier (5).
10. Refrigerating appliance according to claim 8 or 9, characterised in that the front detent element (23) of the adapters (19; 20) is a respective head flexibly deformable during detenting with and removal from detenting with the complementary detent element (35).
11. Refrigerating appliance according to claim 10, characterised in that the head of the front detent element (23) has at least one flank (25) which is flexible in displacement direction and which in the detented state keeps the complementary detent element (35) of the cooling stock carrier (5) pressed against an abutment.
12. Refrigerating appliance according to any one of claims 8 to 11, characterised in that the front detent element (23) and the rear detent element (24) are respectively formed at front and rear adapters (19; 20) of each telescopic drawer (13).
13. Refrigerating appliance according to claim 12, characterised in that front and rear adapters (19, 20) each have a plane of symmetry perpendicular to the displacement direction of the cooling stock carrier (5).
14. Refrigerating appliance according to any one of the preceding claims, characterised in that the freedom of movement of two rails (14, 15; 50, 51; 52, 53), which are movable relative to one another, of each telescopic drawer (13; 48, 49) is less than two-thirds of the length thereof.
15. Refrigerating appliance according to any one of claims 7 to 14, characterised in that each cooling stock carrier (4, 5) comprises a base body and two support parts (11), which are fastened to the base body and at which the complementary detent elements (35, 36) are formed.
16. Refrigerating appliance according to claim 15, characterised in that the base body is formed from sheet metal and the support parts (11) are injection-moulded parts.
17. Refrigerating appliance according to any one of the preceding claims, characterised in that two rails (14, 15; 50, 51; 52, 53) of each telescopic drawer (13; 48, 49) are guided with the help of linear ball bearings (45, 46) to be movable relative to one another.

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