WO2010037148A2

WO2010037148A2 - Refrigerating appliance

Info

Publication number: WO2010037148A2
Application number: PCT/AT2009/000373
Authority: WO
Inventors: Reinhold Resch
Original assignee: Aht Cooling Systems Gmbh
Priority date: 2008-10-01
Filing date: 2009-09-29
Publication date: 2010-04-08
Also published as: RU2478175C2; JP2012504748A; AT507400B1; EP2329207A2; EP2329207B1; ES2390641T3; AT507400A1; CN102171522A; BRPI0919592B1; WO2010037148A3; CN102171522B; US20110100053A1; PL2329207T3; BRPI0919592A2; RU2011117329A

Abstract

The invention relates to a refrigerating appliance, comprising a refrigerating chamber (1) for goods to be refrigerated, a housing (2) receiving the refrigerating chamber (1) at least partially, at least one door (4) which is provided on a housing opening (3) of the housing (2), can be moved with respect to the housing (2) and provides access to the refrigerating chamber, and further comprising a door attachment (7) which is provided between the door (4) and the housing (2) and includes an opening device (8) having a rocker lever (14) for moving the door (4) about a tilting axis (9), particularly a horizontal tilting axis, from a closed to an opening position (10, 11). In order to create advantageous design conditions, it is proposed to equip the door attachment (7) with a carrier (15) which is connected to the rocker lever (14) and in particular adjoins the rocker lever (14), wherein said carrier carries at least part (16) of a further opening device of the door attachment (7) for moving the door (4) from a closed position (10) into an open position (18) which differs from the open position (11) of the other opening device (8).

Description

cooling unit

Technical area

The invention relates to a refrigerator with a refrigerator for goods to be cooled, with a refrigerator at least partially accommodating housing, with at least one provided at a housing opening of the housing, movable relative to the housing door for a cold room access and provided with a door between the housing and the door attachment , which has a tilting lever having opening means for moving the door about a particular horizontal tilting axis from a closed to an open position.

State of the art

In order to make a closed by a door refrigerator compartment of a refrigerator, doors with various door mounting are known, which allow an opening means moving the door from a closed to an open position. Thus, for example, from DE 140 1 078 A1 a door attachment is known, which attaches a door via a tilting device on the housing movable. For this purpose, two rocker arms are provided laterally of the door, with a movement of the same, the door can tilt vertically upwards. Although such door attachment can provide barrier-free access to the refrigerator of the refrigerator, it has been found that tilting devices are only partially suitable in addition to the adverse increased static conditions on the tilting mechanism, because the thus tilted Doors sensitive to tilting load forces. Long service life, which are particularly required for a commercial use of refrigerators, can not guarantee these tilting mechanisms.

For this reason, door fasteners with alternative opening devices, known (US 4,369,632), for example, have pivoting devices with vertically extending pivot axes. Although these door fasteners, in contrast to door fasteners with tilting ensure a long service life, because neither the parts of the opening device nor the doors are exposed to comparatively high loads during opening - disadvantageous in such door fasteners, however, that with open doors this project the refrigerator, and thus restrict the range of motion of the refrigerator. Barrier-free access can therefore not guarantee these door fasteners, which causes comfort disadvantages.

Presentation of the invention

The invention is therefore based on the task, a cooling device with a movable door of the type described in such a way that both a high structural strength of the door attachment and a barrier-free access to the refrigerator can be ensured in a simple design.

The invention solves this problem by the fact that the door attachment has a connected to the rocker arm, in particular to the rocker arm carrier having at least a portion of a further opening means of the door attachment for moving the door from the closed position in a relation to the open position of the other opening means other To be open.

Does the door attachment another opening means for moving the door from the closed position in a relation to the open position of the other opening nungseinrichtung other disclosure on, then it may be possible according to the invention to provide a stable tilting device in a simple manner, because namely, depending on the habit of the user, on average a uniform use of both access alternatives will set, so that without special additional design measures and a tilting device can be provided. However, in particular, the service life can be increased if the door attachment has a carrier connected to the rocker arm, which carries at least part of a further opening device of the door attachment. The tilting loads on the door can be removed on the support, which can improve the load capacity of the door and in particular the stability of the door attachment. Simple construction conditions arise when the carrier connects to the rocker arm. In contrast to the state of the art, the invention can thus ensure not only an increased service life of the cooling device but also alternative or, inter alia, barrier-free access to the cooling device.

In particular, the door and / or the further opening device can be relieved of tilt-related forces when the door attachment has a support and the support is arranged opposite the door such that when moving the door about the tilt axis of the support on the support for a force on the Rocker arm provides. Tilting deformation forces can be removed in a simple manner, which can reduce the structural requirements for both the door and for the further opening device. Therefore, even with respect to the prior art doors with glass surfaces or glass doors can be tilted provided, which can be particularly for ease of use of advantage, because it can be seen before opening the door to the goods of the refrigerator. In addition, the safety of the door attachment can be increased by reducing the risk of breakage of the door or door attachment. The carrier can therefore be arranged relative to the door such that it creates a force connection in addition to the further opening device when tilting the door, in order to be able to disburden the tilted door in an improved manner. The carrier is preferably used for at least partially supporting the tilted door. - A -

Of course, the rocker arm does not always have to be regarded as a straight lever, this may well take a common form with the wearer, which can form a variety of courses.

If the carrier has a carrier frame, then not only can a load-bearing construction be created for the further opening mechanism, but advantageously this frame can also be used as a load-bearing support. In addition, the frame, for example, relieve the tilted door on all sides, which in particular can allow a relatively high level of security against damage to doors with glass surfaces or glass doors. Simple construction conditions arise when the rocker arm and the carrier form a common component.

Simple construction conditions for a sliding guide arise when the carrier has a horizontal guide of the sliding guide, because so the carrier for the other designed as a sliding guide opening device can be used constructively.

If the further opening device is designed as a pivoting device which comprises a pivot bearing fastened to the support, which has a pivot axis which is inclined in particular to the tilting axis, then a cost-effective suspension for the door can be created independently of the door construction.

In order to be able to prevent an uncontrollable pivoting of the tilted door, it can be provided that the support provided on the side of the door facing the refrigerator compartment limits the pivoting range of the door. This can be improved in a simple way, the security of the door attachment, because tilted door rests this stop-limited on the support and so no unwanted pivoting movements during tilting of the door can do more. In order to increase the torsional rigidity of the housing relative to the tilting loads, a force-connecting support strut can be provided between the housing wall projecting from the housing cover and the housing cover.

Limits the frame having a support frame housing between its girders and carrier compounds at least partially the cooling space temperaturbeaufschlagenden recirculation, the cooling unit dimensions can be kept low in an advantageous manner, because the vorzusehenden for the circulating air ducts between the refrigerator and housing outside can be accommodated or the housing for education This device can be used. Advantageous visibility conditions can be created if the circulating air circuit has at least in the connection area of the housing and door openings for acting on the refrigerator door facing with cooling air, because in a simple way condensation water can be avoided at the door.

Depending on the force load to be removed, two mutually spaced and in particular parallel rocker arms can be provided for the tilting device, which engage together on the support frame and are each fastened to the cover of the housing via a pivot bearing. In addition, the structural dimensions of the cooling device can be reduced by means in the intermediate region of the two rocker, for example, compressor and / or condenser, are provided for the refrigerant circuit of the recirculation circuit.

Brief description of the drawings

In the figures, the subject invention is illustrated by way of example by way of example. Show it

1 is a three-dimensional view of a refrigerator according to the first embodiment, 2 is a side view of the refrigerator of FIG. 1,

3 is a front view of the refrigerator of Figure 1 with a swung-wing of the door,

4 is an enlarged and partially torn view of the door attachment of the refrigerator of FIG. 1,

5 is a front view of the door attachment of FIG. 4,

6 is a sectional view of the refrigerator according to Vl-Vl of Fig. 3,

7 shows a further embodiment of a cooling device in a torn-off side view,

8 is a torn-off side view of a third embodiment of a refrigerator,

9 shows a torn-off side view of a fourth embodiment of a cooling device with a different opening than the other embodiments,

10 is a sectional view according to X-X of Fig. 9,

11 is a torn-off side view of a fifth embodiment of a cooling device with respect to the other embodiments, other carrier assembly,

12 is a torn-off front view of FIG. 11,

13 is a torn-off side view of a sixth embodiment of a cooling device with respect to the other embodiments, other carrier assembly and

14 is a torn-off front view of FIG. 13th

Way to carry out the invention

1, for example, has a cooling chamber 1 for the storage of goods to be cooled, which are not shown in detail. The refrigerator 1 is partially surrounded by a housing 2. In a housing opening 3 of the housing 2, a door 4 is provided with two wings 5 and 6, wherein the door 4 is connected via a door attachment 7 with the housing 2. The door attachment 7 allows a door movement in order to arrive at the goods of the refrigerator 1. Such a door movement will least by means of an opening device 8 allows. This opening device 8 creates a possibility of movement of the door 4 about a horizontal tilting axis 9 from a closed position 10 in an open position 11, wherein the two layers 10 and 11 of FIG. 2 can be seen. Although the open position 11 shown in dash-dot line in FIG. 2 represents an end position, other tilted open positions are conceivable, but not shown for reasons of clarity. This open position 11 is characterized in that the door 4 does not protrude into the movement space of the user in front of the refrigerator. The door 4 is located substantially above the housing cover 12 of the housing 2. Since the door 4 has transparent areas 13, and thus is partially translucent, the goods stored in the refrigerator 1 goods can be viewed from the outside. The door 4 may also be designed predominantly or completely transparent or opaque. A disadvantage of the removal of refrigerated goods is that by tilting the door 4 a comparatively wide opening of the refrigerator is necessary to remove the goods the refrigerator 1 can. So that an improved, the location of the cooled goods in the cooling chamber 1 adapted removal can be created, the invention proposes that the door attachment 7 has a subsequent to the rocker arm 14 of the opening device 8 carrier 15, the at least parts 16 of another as a pivoting device 17 trained Opening device of the door attachment 7 for moving the door 4 of the closed position 10 in a relation to the open position 11 of the tilting device 8 other open position 18 carries. The open position 18 can be seen in particular in FIG. 3. The ease of operation of the refrigerator is thus increased because the pivoting device 17 creates a second possibility of movement of the door 4 and the door leaf 5 and 6 about a substantially vertical pivot axis 19.

According to Figures 4 and 5, the door attachment 7 is shown in more detail. Thus, the welded-on carrier 15 and the pivoting device 17 adjoin the tilting device 8. The opening device 8 is formed from a tilting bearing 20 and a rocker arm 14, which rocker arm 14 can be moved about the horizontal tilting axis 9 of the tilting bearing 20. The carrier 15 is the rocker arm 14 vertically in front, in order to allow this support 15 support means 21, for example, a train compression spring to attack to facilitate the tilting movement. The pivoting device 17 is fixed to the carrier 15, wherein the part 16 of the pivoting device 17 comprises the carrier 15 and the support 15 projects, so that a vertically extending pivot axis 19 forming bolts 19 'can engage in the other parts of the pivoting device 17, which other parts are attached to the door 4, not shown. The carrier 15 may be surrounded in the region of the housing opening 3 with an insulation, not shown, in order to reduce the thermal conductivity of the carrier 15.

The carrier 15 forms a parallel to the side edges of the door 4 extending support frame 15 'of what the Fig. 5 can be better removed. In order to relieve the door and the further opening device, the carrier 15 is arranged opposite the door 4 such that when moving the door 4 about the tilt axis 9 of the support frame 15 'of the carrier 15 to support 22 for at least partially support the tilted door 4th serves. This can in particular also be taken from FIG. 2. The arranged behind the door 4 support frame 15 'is pivoted to the door 4 and can relieve the door with its support 22 at least the edge. This edge relief can be on the door top and / or door base. It is also conceivable that the door sides are relieved, which may for example be the case in a deflection of the door. The carrier 15 can thus allow a particularly good removal of force on the rocker arm 14, which creates a stable and secure door attachment 7. Advantageously, the rocker arm 14 forms a common component with the carrier 15, wherein it is also conceivable to form the carrier 15 and the rocker arm 14 in one piece.

In particular, the safety of the operation of the cooling device can be improved if the support 15 provided for the refrigerator compartment 1 faces the pivoting region of the door 4 with its support 22, which can be seen in particular from FIGS. 2 and 3. The support 22 is arranged on the support frame 15 'with respect to the door so that it is at a tilting movement of the door 4 can come to any additional vertical displacement or pivotal movement of the door 4 and the door 5 and 6. It is conceivable that additional means are provided between the carrier 15 and the door 4, in order to create a support 22, which, however, does not change the fact that the support 15 is used for support 22. Because at a tilting movement of the door 4 so carries the door 4 on the carrier 15 in addition to the further opening device load.

Between the housing cover 12 projecting housing rear wall 23 and the housing cover 12, a kraftverbindende support strut 24 is provided.

The tilting device 7 further comprises two mutually spaced and parallel rocker arms 14, are provided in the intermediate region means 25 for the refrigerant circuit of the refrigerator. This may, for example, represent a compressor in order not to have to provide this at the bottom of the refrigerator, which allows a low loading edge of the refrigerator. It need not be further mentioned that differently extending rocker arms 14 are conceivable.

The size of the cooling device can be reduced if the housing 2 having a support frame between its frame supports 2 'and cross connections 2 "at least partially delimits a recirculating air circulation 26 which effects the cooling space, which can be better seen in FIG. the recirculating air circuit 26 has an outlet 27 with nozzles 28 for impinging the door facing the refrigerator compartment with cooling air in the area of the housing opening 3 adjacent to the door 4. In order to provide a forced circulation of cooling air, the outlet 27 is arranged on the housing cover 12 In the housing rear wall 32, the evaporator 33 of the refrigerant circuit is further accommodated for cooling the cooling air guided in the recirculating air circuit 26. The fan housing 30, which is arranged in the housing base 29, accommodates at least the air blown from the outlet 27 Housing rear wall 32 through the cross-connections 2 "nozzles 28 provided so that stored on the shelves 34 and not shown goods can be acted upon with cooling air. Furthermore, the cooling device for actuating the door 5 and 6 handles 35. On the outside of the housing advantageous heat insulation 36 is applied.

Referring to Fig. 7, an alternative embodiment of an opening means 8 'is shown. In contrast to the opening device 8 shown in FIG. 4, this opening device 8 'has a two-armed rocker arm 14', which is fastened on the transverse strut 24 'via a tilting bearing 20'. The lever extension 14 "of the rocker arm 14 'is engaged by support means 21', for example a tension spring, for facilitating the tilting movement of the door 4. The support means 21 'are movably supported on the housing 2. The support frame 15' arranged behind the door 4 becomes can be relieved with the door 4 and can relieve the door with its support 22. The support 15 can thus allow a particularly good removal of force on the rocker arm 14 ', in particular with a substantially at the outer end of the housing cover 12 and on the protruding housing rear wall 23 attacking cross member 24 'the rigidity in the lid portion 12 of the refrigerator can be improved.

A further embodiment with regard to the opening device 8 is shown in FIG. 8. Compared to the embodiment according to FIG. 2, this opening device 8 ', similar to FIG. 7, has a two-armed rocker arm 14'. Compared to the train compression spring shown in FIG. 2, this embodiment support means 21 ', which contributes to facilitate the tilting of the door 4 by means of a guided over a pulley 37 pull cable 38 which is tensioned by a pulling means 39. As traction means, for example, draw weights, motors or a train compression spring can be used.

In addition, the further opening device may be formed as a sliding guide 40, which is shown in FIGS. 9 and 10 as a further embodiment. Advantageously, the carrier 15 on a horizontal guide 41 of the sliding guide 40, which reduces the design effort. The two leaves 5 and 6 run on rollers 42 in the guide 41 side by side, so that with a displacement of the door leaf 5 or 6, the refrigerator 1 is accessible. Referring to FIGS. 9 and 10, a torn view is shown. However, it goes without saying that at the bottom of the door, however, not necessarily the same guide can be provided. The carrier 15 forms in addition to the guide 41 and a support 22, which lies on the upper side surface of the door 4 and the door leaf 5 and 6, which can be seen in FIG. Furthermore, the carrier 15 also has a support frame 15 ', in which the door leaves 5 and 6 can each protrude. However, this is not only advantageous in terms of thermal sealing, but the support frame 15 'can then serve as a support 22, because there the side surfaces of the door 4 and the adjacent sides of the door leaves 5 and 6 can rest when tilting the door he follows.

A further embodiment is shown in FIGS. 11 and 12, in which case the further opening device is designed as a pivoting device 17 '. In contrast to the pivoting device 17 of FIG. 4, the rocker arm 14 is connected to the carrier 43 via the pivoting device 17 '. The rocker arm 14 thus carries a portion 16 of the pivoting device 17 'of the door attachment 7 for moving the door 4, the part 16' projecting the support 43 so as to engage with a vertical pivot axis 19 forming bolt 19 'in the other parts of the pivoting device 17 'to be able to intervene, which other parts are provided on the carrier 43. The carrier 43 is attached to the door 4 via a plurality of connecting means 44 in order to be able to easily remove tilting deformation forces from the door 4, which is advantageous in particular with doors having glass surfaces or glass doors. The carrier 43 is provided between rocker arm 14 and door 4, which can be advantageously used for a support of the tilted door. The carrier 43 is arranged opposite the door 4 such that when the door 4 is moved about the tilt axis 9, the carrier 43 is movable in the direction of the rocker arm 14, so that the carrier 43 serves to support the tilted door 4. In this case, however, the support 22 between the carrier 43 and rocker arm 14 and not, as shown in Fig. 2, between the carrier 15 and door 4 is provided. Fig. 11 shows a considerable distance between the carrier 43 and rocker arm 14 - the width The distance is determined by the possibility of mobility of the carrier 43 in the direction of the rocker arm 14. For example, it is conceivable to overcome this distance by tolerated deformation forces, so as to come to a support 22.

Another embodiment is shown in FIGS. 13 and 14. In contrast to the embodiment according to FIGS. 11 and 12, the carrier 43 'is a part of the door 4, which carrier 43' carries the glass surface 13 and parts of the pivoting device 17 '. Again, the rocker arm 14 can serve as a support 22 for the carrier 43 'when it moves when tilting the door 4 in the direction of the rocker arm 14. The carrier 43 'is designed so that an unobstructed by the rocker arm 14 pivoting the door 4 is possible.

In addition, it is generally conceivable to use means between the carrier and rocker arm or door in front of a tilting of the door, which then contribute to the formation of the support instead of a movement of the carrier or the door.

Claims

Patent claims

1. Cooling device with a cooling space (1) for goods to be cooled, with a cooling space (1) at least partially accommodating housing (2), with at least one at a housing opening (3) of the housing (2) provided opposite the housing (2 ) movable door (4) for a cold room access and with a between door (4) and the housing (2) provided door attachment (7) having a rocker arm (14) having opening means (8) for moving the door (4) around a in particular horizontal tilting axis (9) from a closed position to an open position (10, 11), characterized in that the door fastening (7) has a support (15) connected to the rocker arm (14) and in particular connected to the rocker arm (14). comprising at least a portion (16) of a further opening means of the door attachment (7) for moving the door (4) of the closed position (10) in a relation to the open position (11) of the other opening means (8) other open position (18) ,

2. Refrigerator according to claim 1, characterized in that the door attachment (7) has a support (22) and that the carrier (15) relative to the door (4) is arranged such that when moving the door (4) about the tilt axis (9) the carrier (15) on the support (22) for a removal of force on the rocker arm (14), in order to at least partially relieve the further opening device and / or the door (4).

3. Refrigerator according to claim 1 or 2, characterized in that in particular with the rocker arm (14) forming a common component carrier (15) has a support frame (15 ').

4. Cooling device according to claim 1, 2 or 3, characterized in that the further opening device is designed as a sliding guide (40), wherein the carrier (15) has a horizontal guide (41) of the sliding guide (40).

5. Cooling device according to claim 1, 2 or 3, characterized in that the further opening device is designed as a pivoting device (17) which comprises a on the support (15) fixed pivot bearing (16), one to the tilting axis (9) inclined, in particular has normal, extending pivot axis (19).

6. Refrigerator according to claim 5, characterized in that on the refrigerator (1) facing the door side provided support (15) limits the pivoting range of the door (4).

7. Refrigerator according to one of claims 1 to 6, characterized in that between a the housing cover (12) projecting housing rear wall (23) and the housing cover (12) is provided a kraftverbindende support strut (24).

8. Cooling appliance according to one of claims 1 to 7, characterized in that the support frame having a housing (2) between its framework beams (2 ') and cross-connections (2 ") at least partially a cooling chamber (1) temperature-limiting recirculation circuit (26) at least in the region of the door opening (4) adjacent the housing opening (3) has an outlet (27) for acting on the cooling chamber (1) facing the door side with cooling air.

9. Cooling appliance according to one of claims 1 to 8, characterized in that the tilting device (7) has two mutually spaced and in particular parallel extending rocker arm (14), in the intermediate region of which means (25) are provided for the refrigerant circuit of the cooling device.