ES2504974T3 - Refrigeration device with removable container - Google Patents

Abstract

Refrigeration apparatus, in particular domestic refrigeration apparatus, with an inner container (1) that delimits an interior space and with a first container (4, 5) arranged removably, supported, at least by sections, on two molded parts ( 7), on the side wall (3) of the inner container (1), in which the molded parts (7) respectively have an upper projection and a lower projection (9, 10) that penetrate the interior space of the container interior (1), characterized in that at least one support surface (22) of the first container (4, 5) is supported on the lower projections (10) of the molded parts (7), because they are against pressure surfaces (36) of the first container contact at least one stop position removed from the container (4, 5) with the upper projections (9) and because a second container (5) is arranged removable under the first container (4) and has an upper edge ( 27), which in an extracted stop position it stops at a flank (13) of the lower projection (10).

Description

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DESCRIPTION

Refrigeration device with removable container

The present invention relates to a refrigeration apparatus, in particular a domestic refrigeration apparatus, in which a refrigerated interior space is delimited by an inner container molded by deep drawing, from which a container of refrigerated products can be extracted as per example a removable drawer, to access the refrigerated product contained there.

Document DE 20 2006 016 119 U1 publishes a refrigeration apparatus with an inner container that delimits an interior space and with a removable support grid, resting on two molded parts on the side walls of the inner container, so that the pieces molded have a projection that is projected inside the interior space of the inner container, the grid is supported on a lower part of the projections and parts of the grid contact in a place of extended butt in an upper part of the projections.

A refrigeration apparatus according to the preamble of claim 1 is known from DE 2005 014 381 U1, in which ribs, which carry a removable container, are formed in side walls of the inner container. On one front end of the ribs, a hood is attached, respectively, to protect the ribs from friction wear through the reciprocatingly coupled container thereon.

The hood can, in effect, protect against friction wear the front ends of the ribs which, conditioned by the usual manufacturing technique of deep drawing from flat material, have a thinner wall than other parts of the inner container; however, especially in an extended stopping place, high forces can act through the protective caps on the ribs, which cannot lead to any damage. These forces establish the minimum thickness that the flat material used to manufacture the inner containers must have. That is to say, this minimum thickness is always still clearly higher than what would be necessary to guarantee sufficient support capacity in other places less loaded with the inner containers. However, a use of high material not only causes high costs, but the high wall thickness involved with it also leads to problems during the molding of contours rich in details, in particular in the marginal area of the inner container.

The purpose of the invention is to create a refrigeration apparatus with an inner container and with removable containers outside the inner container, in which the wall thickness of the inner container can be kept reduced, without the danger of damage to the inner container Due to overload.

The task is solved by means of the refrigeration apparatus with the characteristics of claim 1. While in conventional construction the torque that acts on an extended container must be absorbed by two pairs of caps arranged above and below the container , so that the lower cap must additionally compensate for the weight of the container and its contents also still the pressure acting between the upper cap and the container, with the construction according to the invention at least a part of this pressure acts between the against pressure surfaces and the upper projections, so that the counter compensatory pressure exerted by the lower projection places, in effect, the molded parts under internal tension, but the inner container itself is discharged from this tension. Another pressure - particularly in the extended stop position - is absorbed by the second container.

In addition to the container, a plate can rest on the lower projections of the molded parts placed facing each other in pairs.

To support a plate, the lower projection of a molded part does not have to be distanced more than the upper projection from the side wall, so that the useful width of the inner container under the plate is only slightly impaired.

The support surface of the removable container may be supported on the plate in the lower projections.

When the plate is flat, the container can slide on it, so that support surfaces affected by friction wear are not necessary for the removable container on the side walls of the inner container. This also allows to keep the wall thickness of the inner container reduced.

To fix the plate in the inner container so that it cannot continue during removal of the removable container, an ascending step is formed more conveniently at a leading end of a horizontal support flank of the lower projection.

In order to fix the free play plate, the molded parts can have, respectively, a tongue prestressed by the plate. Preferably, this tongue exerts a force directed downwards and / or directed towards the inside of the

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inner container on the plate, to press it against the support flank and / or against a stop near a rear wall of the inner container.

This tongue can be extended especially in the form of a hook around the step of the lower projection, so that the free end section of the tongue is directed towards the horizontal support flank.

The pressure surfaces are preferably formed in ribs that are laterally distanced from the first container. In this way, the vertical distance between the bearing surfaces and against the pressure surfaces can be kept small, and correspondingly compact molded parts can be configured.

To fix the stop position removed from the removable container, at least one of its ribs has a rising edge at its rear end, which is supported by the extended stop position on a rear flank of the upper projection.

Preferably, the edge of the rib and the rear flank of the upper projection rise inclined backwards. In this way, the edge of the rib can form at the same time the counter pressure surface mentioned above, which presses in the extended stop position from below against the upper projection. In addition, through the inclined positions of the container the flank of the rib can be rotated horizontally and the container can be pulled forward beyond the stop position and finally removed. Preferably, the gradient of the two flanks is less than 45 °.

More conveniently, at least one of the ribs has an ascending flank at its front end, which is supported in a stop position inserted from the container on a leading flank of the upper projection. This flank defines an inserted stop position of the removable container regardless of eventual dimensioning tolerances.

To resist the pressure, which can act in the extracted state on the upper edge of the second container, it is preferably reinforced at least locally, in particular in a rear area, by means of a rib.

To create a high strength structure with little use of material, more conveniently at least one of the ribs has a framework structure with two elongated extended ribs, which respectively form an upper flank and a lower flank and have braces that join the ribs together.

The projections of the molded body can be hollow inside to improve its load capacity, more conveniently they are reinforced by ribs that cross the inner hollow space.

To simplify the assembly of the molded parts, they more conveniently present, respectively, a base plate, from which the projections are distanced, and which is housed in a positive joint in cavities of the side walls.

Other advantages of the invention are deduced from the following description of embodiments with reference to the attached figures. In this case:

Figure 1 shows a perspective view of an inner container of refrigeration apparatus with a plurality of removable drawers guided therein.

Figure 2 shows a top plan view on a side wall of the inner container with two molded parts and with a removable drawer retained between the molded parts in an inserted stop position.

Figure 3 shows a view of a molded part, viewed from behind in relation to the depth direction of the inner container of Figures 1 and 2.

Figure 4 shows a top plan view similar to Figure 2, showing the removable drawer in an extracted stop position; Y

Figure 5 shows a top plan view of a molded part, viewed from its side directed towards an interior wall in the assembled state.

Figure 1 shows a perspective view of an inner container 1 manufactured in a manner known per se by means of deep drawing of a thermoplastic material plate of a domestic refrigeration apparatus, in particular of a refrigeration apparatus. The inner container has an open front side with a frame 2, in which surrounding living edge steps are formed for fixing exterior wall elements (not shown) of the body of the refrigeration apparatus. One of the two side walls 3 of the inner container has been omitted in the representation of Figure 1, in order to show removable drawers 4, 5, 6 guided in the inner container as well as molded bodies 7 supporting the removable drawers 4, 5. The molded bodies 7 respectively have a flat base plate 8, which is housed in positive connection in a cavity.

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flat of the side walls 3 and two projections 9, 10 that project in the same width inside the inner container.

Figure 2 shows a top plan view on the two molded bodies 7 of the right side wall 3 of the inner container 1 as well as, in the cross section, the removable drawer 5 guided between them. The removable drawers 4, 6 neighbors are not represented for simplicity, but the following explanations for the collaboration of the removable drawer 5 with the molded body 7 that supports it are applied in a similar manner also for the removable drawer 4.

The two molded bodies 7 shown in Figure 2 are identical. As can be best recognized in the upper molded body 7, the upper projection 9 in each case essentially has the shape of a rectangle, in which a lower rear corner (with respect to the depth direction of the inner container 1) is cut and replaced by an inclined flank 1. Similarly, the lower projection 19 has on its lower side some inclined front and rear flanks 12 and 13, respectively. A horizontal flank 14 on the upper side of the projection 10 is closed forward by an ascending step 15. An elastic tongue 16 is connected through a root section that extends the flank 12 with the projection 10 and extends in the form of hook around a leading flank 17 and step 15 and ends in a section 18 that ends inclined down and forward on step 15.

Figure 3 shows a view of the molded body 7 seen from the direction parallel to the side walls 3, designated in Figure 2 with III. It is especially recognized here that the tongue 16 is separated from the base bale by a gap 19, so that it can be elastically deflected in the direction of arrow III.

Again with respect to Figure 2, in the lower molded body 7, the tongue 16 can be seen in an elastically offset position, in which it is retained by means of a plate 20, here a solid safety glass plate, whose area front rests on the horizontal flank 14 of the molded body 7. A rear corner area of the plate 20 is supported in another suitable optional way in the inner container 1, for example with the help of two molded bodies not shown or on supporting surfaces 21 molded by deep drawing in a rear area of the side walls 3 (see Figure 1). The tongue 16 allows, by means of an elastic deformation capacity, to fix the plate 20 free of play regardless of eventual dimensioning tolerances of the inner container 1 at least in the direction of the depth of the inner container, pressing it, for example, against a step of these support surfaces 21.

The plate 20 carries the removable drawer 5, of which a part of a bottom plate 22 that rests on a large surface on the plate 20 as well as a double wall faceplate 23 in the section can be seen in Figure 2. A side wall 24 of the removable drawer 5 is shown transparent, in order to show ribs 25, 26 formed integrally on its outer side away from the cutting plane and directed towards the neighboring side wall 3.

An upper edge 27 of the side wall 24 extends over a large part of its horizontally hermetic length below a lower flank 28 of the upper molded body 7. An inclined ascending section 29 29 at the front end of the upper edge 27 rests on the flank 12 of the upper molded body 7. The rib 25 reinforces a rear section of the upper edge 27.

The lower rib 26 extends not too far from the bottom plate 22 and ends forward with an upwardly directed projection 30, which rests on a front vertical flank 31 of the projection 9 of the lower molded body 7. This contact and the Section 29 contact with flank 12 defines an abutment position inserted from the removable drawer 5.

Both ribs 25, 26 have a honeycomb or frame type structure with two parallel ribs, extended horizontally extended and short vertical ribs 33 that connect the ribs 32 to each other. The surfaces delimited by the ribs 32 and the ribs 33 are open in each case towards the neighboring side wall 3.

Figure 4 shows the removable drawer 5 in an extracted stop position. The two ribs 25, 26 have at their rear end, respectively, a flank 35 and 36, respectively, inclined upward. Since the flank 25 contacts the flank 13 of the upper molded body 7 and the flank 26 contacts the flank 11 of the lower molded body, respectively, on the surface, the stop position of the removable drawer 5 is fixed. In this position of The weight of the removable drawer 5 and its contents rests essentially on the front edge of the plate 20. The inclined position of the flanks 35, 36 allows, despite eventual manufacturing tolerances of the removable drawer 5 and the molded parts 7, provide the removable drawer 7 with bottom 22 that rests on the plate until at least one of the flanks 35, 36 collides from below against one of the projections 9, 10. In the removed stop position, the center of gravity of the Removable drawer is in front of the front edge of the plate 20. Since the removable drawer is interlocked free of play between the plate 20 and the projections 10, 9, it cannot be tilted forward, when s back. The refrigerated product therefore remains stable in the drawer.

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Removable 5 and given to the user, despite the ease of driving, the impression that the removable drawer is guided safely and reliably.

When the removable drawer is released in the extracted stop position, the flanks 25, 26 exert an upward pressure, represented by the arrows F1, F2, on the projections 9, 10 of the lower molded body and the upper molded body 7, respectively . The force acting on the plate 20 along its front edge, represented by a date G, is therefore composed of the force of the weight of the drawer and the forces opposed to the forces F1 and F2. Whereas F2 and G put under tension of tension a zone of the lateral wall 3 that is between the molded bodies 7 and the corresponding forces can only be introduced, respectively, along an upper or lower edge of their base plates 8 on the side wall 3, the tension generated between the projections 9, 10 of the lower projection by the forces G and F1 is a purely internal tension of the molded body 7. The side wall is therefore not exposed in any way punctually at full force G. The torque that results from forces F1 and G is introduced into the side wall 3 distributed over the periphery of the base plate 8, and since this periphery becomes sufficiently large, a favorable lever ratio can be achieved, which prevents an overload of the side wall 3 also in the case of reduced thickness.

When the user lifts the removable drawer 5 in the stop position removed on its front plate 23, it can adopt an inclined position, in which the flanks 25, 26 can pass under the projections 9, 10, so that the Removable drawer 5 can be advanced beyond the stop position and can be removed outside the inner container 1.

Maximum loads appear directly on projections 9, 10 and specifically on their flanks 14 and 11, respectively. So that these can be loaded a lot with a reduced use of material, the projections 9, 10 are, in effect, hollow, but on the other hand they are reinforced inside by means of ribs 37, 38. In the case of the upper projection 9, the rib 37 is configured in the form of and, with a first arm perpendicular to the flank 11 and with two other arms, which distribute the solicitation in the longitudinal direction of the first arm over two other outer flanks of the projection 9 In the larger projection 10 as regards the cross section, the rib 38 forms a hollow cylindrical central section with radii that radially distance to the flanks 14, 17, 28, 13.

A stamping mark 39 on the surface of the base plate 8, directed towards the side wall 3, of the molded body 7 designates the side wall 3, to the right or to the left, of the inner container 1, in which it is provided molded body 7 for assembly.

Claims (15)

5 10 fifteen twenty 25 30 35 40 Four. Five fifty E11702978 09-18-2014 1.-Refrigeration apparatus, in particular domestic refrigeration apparatus, with an inner container (1) that delimits an interior space and with a first container (4, 5) arranged in a removable way, supported, at least by sections, on two molded parts (7), on the side wall (3) of the inner container (1), in which the molded parts (7) have, respectively, an upper projection and a lower projection (9, 10) that penetrate the space inside the inner container (1), characterized in that at least one support surface (22) of the first container (4, 5) is supported on the lower projections (10) of the molded parts (7), because they are against pressure surfaces (36) of the first container contact at least one stop position removed from the container (4, 5) with the upper projections (9) and because a second container (5) is arranged removable under the first container (4) and has a upper edge (27), which It was in a position of abutment removed abutting on a flank (13) of the lower projection (10). 2. Refrigeration apparatus according to claim 1, characterized in that a plate (20) rests on the lower projections (10) of the molded parts that are placed facing each other in pairs. 3.-Refrigeration apparatus according to claim 2, characterized in that the lower projection (10) of one of the molded parts (7) is no more than its upper projection (9) from the side wall (3) leading the molded part. 4. Refrigeration apparatus according to claim 2 or 3, characterized in that the first container (4, 5) is supported on the plate (20) in the lower projections (10). 5. Refrigeration apparatus according to one of the preceding claims, characterized in that an ascending step (15) is formed at a leading end of a horizontal support flank (14) of the lower projection (10). 6. Refrigeration apparatus according to one of claims 2 to 5, characterized in that the molded parts 7) have a tongue (16) prestressed through the plate (20) and exerts a downward directed force and / or inside the inner container (1) on the plate (20). 7. Refrigeration apparatus according to claim 6, characterized in that the tongue (16) extends in the form of a hook around a front flank (17) of the lower projection (10) and a free end section (18) of the Linguete (16) is directed towards the horizontal support flank (14). 8. Refrigeration apparatus according to one of the preceding claims, characterized in that the counter pressure surfaces (36) are configured in ribs (26) that are laterally distanced from the first container (4, 5). 9.-Refrigeration apparatus according to claim 8, characterized in that at least one of the ribs (26) has at its rear end a rising edge (36), which is supported by a stop position removed from the container (4, 5) on a rear flank (11) of the upper projection (9). 10.-Refrigeration apparatus according to claim 9, characterized in that the flank (36) of the rib (26) and the rear flank (11) of the upper projection (9) rise inclined backwards, preferably with a gradient less than 45 °. 11.-Refrigeration apparatus according to one of claims 8 to 10, characterized in that at least one of the ribs (26) has a rising edge (30) at its front end, which is supported in an inserted stop position of the container (4, 5) on a leading flank (31) of the upper projection (9). 12. Refrigeration apparatus according to one of the preceding claims, characterized in that the upper edge (27) of the second container (5) is reinforced, at least locally, in particular in a rear area, by means of a rib (25). ). 13. Refrigeration apparatus according to one of claims 8 to 12, characterized in that at least one of the ribs (25, 26) has a framework structure with two extended elongated ribs (32) forming, respectively, a flank upper and a lower flank and that have braces (33) that join them together. 14.-Refrigeration apparatus according to one of the preceding claims, characterized in that the projections (9, 10) are hollow inside and are reinforced by ribs (37, 38) that cross the hollow interior space. 15. Refrigeration apparatus according to one of the preceding claims, characterized in that the molded parts (7) have, respectively, a base plate (8), from which the projections (9, 10) are distanced, and because the base plates (8) are housed in positive junction in wall cavities 6 E11702978 09-18-2014 lateral (3). 7