EP2218989A2 - Cooler with dampened door - Google Patents
Cooler with dampened door Download PDFInfo
- Publication number
- EP2218989A2 EP2218989A2 EP10151871A EP10151871A EP2218989A2 EP 2218989 A2 EP2218989 A2 EP 2218989A2 EP 10151871 A EP10151871 A EP 10151871A EP 10151871 A EP10151871 A EP 10151871A EP 2218989 A2 EP2218989 A2 EP 2218989A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- door
- refrigerating appliance
- appliance according
- damper
- receptacle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000013016 damping Methods 0.000 claims abstract description 21
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 238000004873 anchoring Methods 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000005057 refrigeration Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/028—Details
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D3/00—Hinges with pins
- E05D3/06—Hinges with pins with two or more pins
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D5/00—Construction of single parts, e.g. the parts for attachment
- E05D5/02—Parts for attachment, e.g. flaps
- E05D5/06—Bent flaps
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F5/00—Braking devices, e.g. checks; Stops; Buffers
- E05F5/02—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D3/00—Hinges with pins
- E05D3/06—Hinges with pins with two or more pins
- E05D3/16—Hinges with pins with two or more pins with seven parallel pins and four arms
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F5/00—Braking devices, e.g. checks; Stops; Buffers
- E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
- E05F5/10—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops with piston brakes
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
- E05Y2201/21—Brakes
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
- E05Y2201/252—Type of friction
- E05Y2201/254—Fluid or viscous friction
- E05Y2201/256—Fluid or viscous friction with pistons or vanes
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
- E05Y2201/262—Type of motion, e.g. braking
- E05Y2201/264—Type of motion, e.g. braking linear
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
- E05Y2600/60—Mounting or coupling members; Accessories therefor
- E05Y2600/626—Plates or brackets
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
- E05Y2900/31—Application of doors, windows, wings or fittings thereof for domestic appliances for refrigerators
Definitions
- the present invention relates to a refrigeration appliance, in particular a household refrigeration appliance, with a body, a door hinged to the body and arranged between the door side and body side attack points damper which is stretchable and compressible for damping a closing movement of the door.
- a refrigerator with such a damped door is known in which a damper is mounted on and movable with the hinge edge of a refrigerator door. Just before the door reaches its closed position, a tip of the damper abuts against the body, and a resulting compression of the damper delays the closing movement of the door. Due to its placement between the front of the body and a vorgeblendeten furniture door, the length and thus the stroke of the damper is narrow. Therefore, to be effective, the damper must exert a strong deceleration, and there is a risk that the impact noise that occurs at an undamped door when it hits against the refrigerator body, replaced only by a corresponding noise at the meeting of the body and damper becomes.
- DE 10 2006 019 332 A1 proposes a further developed damper construction for a refrigerator door, in which a piston-cylinder damping unit mounted between the carcasses communicates with the door and the carcass in every position of the door and is continuously compressed and expanded as the door moves.
- the possible according to the first-mentioned font hard stop in the encounter of damper and body is excluded.
- the damping unit performs a pivoting movement during the closing of the door. Since the damping unit with the door closed must find space between this and the front of the body, the installation space available for the damper is very limited.
- the damping unit when closing the door must continue to approach an orientation in which their upsetting and stretching direction is parallel to the door and to the front of the carcass. In this orientation, however, the length of the damping unit does not change during a pivoting of the door, that is, the damping unit is ineffective. This In practice, it makes it very difficult to use the damping unit to control the movement of the door at the decisive moment, just before striking the front of the body, in the desired manner.
- the object of the present invention is to specify a refrigeration appliance with a damped door, in which no restrictions on the installation space available for the damping unit make it necessary to position the damping unit in an unfavorable manner for the damping effect.
- the object is achieved by having in a refrigerator with a body, a door hinged to the body and arranged between the door side and body side attack points damper which is extensible and compressible to dampen a closing movement of the door, the damper in a formed on the body of its front engages. Since a movable head of the damper can escape when closing the door into the receptacle or recess into it, even at the moment in which the door reaches its closed position, the compression movement of the damping unit is still a transversely oriented to the front, effective for damping the door Have component.
- the length and stroke of the damper are not limited by a space available between the body and a prefixed furniture door and can be made as large as required for a satisfactory and safe damping effect. Furthermore, this solution is not limited to built-in appliances with hinged furniture door, because the door-side point of the damper with the door closed can be anywhere near the front of the carcass, it can also be located on the heat-insulating door mounted by the manufacturer of the device.
- the behavior of the damper can therefore already be optimized by the manufacturer; boundary conditions not to be influenced by the manufacturer of the refrigeration device, such as the placement of a built-in appliance in its furniture recess and the attachment of the furniture door to the heat-insulating door have no influence on the effectiveness of the damper.
- the receptacle is formed as an elongated recess, which at least largely absorbs the damping unit and which is accessible from the front of the body.
- the receptacle is designed as a sleeve body oriented towards the rear side of the body, in particular a blind hole-like sleeve, which has an opening which opens out at the front and surrounds the damping unit like a coat.
- the compression and expansion direction of the damper at least when the door is close to its closed position, is substantially parallel to the direction of movement of the door-side point.
- the parallelism of the compression and expansion direction and the direction of movement guarantees that a movement of the door actually leads to a significant change in length of the damper and the damper can thus effectively influence the door movement.
- the damper in its recess based on the teachings of DE10 2006 019 332 A1 pivotally mounted; however, for the sake of simplicity, it is preferable that the upsetting and stretching direction of the damper is fixed with respect to the body.
- the door-side point of attack and a head of the damper touching it should be movable relative to one another transversely to the compression and extension direction.
- the transverse mobility of the head and point of attack against each other reduces the requirements for the parallelism of the direction of movement of the point and the compression and expansion direction.
- any orientation can be used here that ensures that the point of attack and the head do not slide off each other in the lateral direction.
- the door-side point of attack is part of a multi-joint hinge, which connects the door to the body.
- This hinge must in principle be strong enough to carry the weight of the door and possibly deposited in door cabinets refrigerated goods, so that a point of attack that is robust enough to absorb the force of the damper can be provided there without effort, whereas In other places the door usually a reinforcement would be required.
- the front of the body is preferably reinforced in height of the recess by a backing part.
- the recess may be formed by a sleeve fixed to the backing part.
- the sleeve is integral with the backing part.
- Such a one-piece construction is to produce rationally in a spraying or casting technique.
- a hinge that connects the door to the body is also conveniently anchored to the backing member to minimize the expense of assembling the refrigerator.
- such a backing part comprises a plate which extends behind a front side of the body and to which a foot piece of the hinge is fastened via a plurality of screws, rivets or the like. If the backing part also receives the sleeve, space for fastening the screws or rivets is lost. Therefore, according to the present invention, the backing member preferably includes a portion that extends behind a side surface of the body, and a root of the hinge is anchored to this portion.
- the backing part has at least two anchoring points for the foot piece of the hinge, it is expedient for static reasons that the anchoring points are not arranged on the same side of the recess, but that the recess is surrounded by the anchoring points.
- Fig. 1 shows a perspective view obliquely from behind a lateral outer wall 1 and a front serving as a front frame 2 of a refrigerator body (2a) and a hinged to the refrigeration unit body by means of hinges 3 door 4.
- the body has a familiar to those skilled construction with a in not shown, in a central opening of the front frame 2 fixed, plastic deep-drawn inner container and an insulating filling of a foam between the inner container and outer walls of the body such as the outer wall shown 1.
- the outer wall 1, the frame 2 and others the outer shell of the body forming parts are made in the usual way of thin sheets, which are not inherently viable enough to hang the door 4 thereon.
- the outer wall 1 is foam-stabilized by Schulegmaschine 5, where the hinges 3 of the door 4 attack.
- the upper of these two backing parts 5 is in FIGS. 2 and 3 shown in perspective views from behind or from the front.
- the backing member 5 made integrally by casting metal or spraying a fiber reinforced plastic has a base plate 6 provided to be mounted in contact with the front frame 2.
- the front side of the base plate 6 has a central cylindrical receiving recess 7.
- At an edge of the base plate 6 connects at right angles to a leg 8, which is intended to abut from the inside to the lateral outer wall 1.
- a screw dome 9 on a side facing away from the leg 8 region of the base plate 6 is provided to receive a screw which fixes a foot of the hinge 3 on the outside of the frame 2.
- an elongated sleeve 10 which extends horizontally and at an acute angle to the outer wall 1 and the leg 8 in the insulating material of the body and the Recess 7 separates from the insulation material.
- the sleeve 10 is connected to the leg 8 by a horizontal plate 11.
- a second screw dome 12 extending from the leg 8 is partially fused to the plate 11.
- Projections 13 on the inside of the leg 8 respectively correspond to recesses 14 on its outer side contacting the outer wall 1.
- the recesses 14 are distributed around an opening 15 of the second screw 12.
- Fig. 4 shows a horizontal section through a corner of the refrigeration unit body, by the voltage applied from the inside of the front frame 2 and the lateral outer wall 1 backing part 5 and attached to the Schulegteil 5 multi-joint hinge 3.
- a foot 16 of this hinge 3 has a base plate in a conventional manner 17, which bears against the outside of the front frame 2 and this together with the base plate 6 of the Locking part 5 clamps.
- a screw 18 engages through a hole of the base plate 17 in the first rantdom 9 of the backing part 5 a.
- a second screw would engage in a second erdom of the backing part, here is a large opening 19 of the base plate 17 of the sleeve 10 of the backing part 5 opposite, and a piston rod 20 of a piston-cylinder damper 21 extends through the opening 19.
- the damper 21 is positively inserted into the sleeve 10, and a bottom 33 of the sleeve forms a body-side point of action, is introduced into the acting in a longitudinal direction of the damper 21 compressive force into the body.
- the base 16 has a right angle formed on the base plate 17 leg 24, which rests from the outside, relative to the leg 8 of the backing part 5, on the lateral outer wall 1.
- the base 16 has a right angle formed on the base plate 17 leg 24, which rests from the outside, relative to the leg 8 of the backing part 5, on the lateral outer wall 1.
- three fingers 25 are notched, which engage through openings in the outer wall 1 into the three recesses 14 of the backing part 5.
- the two legs 8, 24 of the foot piece 16 and the backing piece 5 are connected by a second screw 18, which engages in the second screw dome 12.
- the piston rod 20 is widened at its free end to a head 26, of which an orthogonal oriented to the direction of displacement of the piston rod end face presses against a roller 27 of the hinge 3.
- the roller 27 is rotatably mounted on an axis 34, which in turn describes a dash-dotted circular orbit about the axis 22 when opening and closing the door 4.
- the roller 27 is movable during opening and closing of the door 4 with this and therefore represents a door-side point of attack for the damper 21. Due to the orientation of the end face and its contact with the rotatable roller 27 are substantially no transverse to drawn as a dot-dash line Movement direction of the piston rod 20 oriented forces transmit the damper 21, which could increase its internal friction and could lead to jamming.
- the direction of movement of the piston rod 20 deviates only slightly from the direction of movement of the roller 27 in the illustrated closed position of the hinge 3. How big this deviation may be depends on the width of the head 26 and its freedom of movement. It must be small enough that on the entire path, the piston rod 20 when opening the door 4 travels from the initial position shown as a closed, hatched filled outline with the door closed 4 up to a stop position shown as a dashed outline, beyond the Due to the structure of the damper 21, the piston rod 20 can not advance, the roller 27 does not slide off the end face of the head 26. In the case shown here, the deviation in the starting position with the door 4 closed is about 20 ° and decreases with the advance of the piston to almost 0 ° at the stop position.
- roller 27 can transmit substantially only forces in the longitudinal direction of the piston rod 20, there is no risk of tilting of the piston rod 20 due to the relative movement of the head 26 and the roller 27 transversely to the piston rod 20th
- Fig. 5 schematically shows a section through the damper 21.
- the damper has two chambers 28, 29 on either side of a movable piston 30.
- the chambers 28, 29 communicate with each other via one or more narrow passages 31 of the piston 30. If when closing the door of the damper 21 compressed As a result, and as a result, the right-hand chamber 29 is reduced in size, liquid flows through a passage 31 into the left-hand chamber 28, and the viscosity of the jamming liquid generates a counterforce which inelastically resists the compression of the damper 21.
- the volume of the chamber 29 decreases more than that of the chamber 28 increases, and the gas contained in the chambers 28, 29 is compressed.
- an elastic restoring force builds up, which causes the piston rod 20 after opening the door 4 automatically back to the dashed position of the Fig. 4 extending.
- the relationship between the inelastic counterforce caused by the overflow fluid, which opposes any displacement of the piston 30, no matter in which direction, to the elastic force of the compressed gas, which forces the piston 30 into the extended one Position drives, is about the ratio of gas to liquid in the chambers 28, 29 arbitrarily adjustable.
- the elastic force can therefore be kept low enough for the door 4 to be held securely in its closed position, whether by the closing force of a magnetic seal between the door 4 and the body or by a spring of the hinge 3 which locks the door 4 in its closed position draws.
- the damper 21 can be used both in a table-top refrigeration device as well as a built-in appliance, and its effectiveness is independent of any tolerances of its mounting position when installed in a furniture niche. Even dimensional tolerances of the body itself have at most little effect on the effect of the damper, since the lever arm, with which he acts on the door 4, essentially only by the shape of the backing part 5 and the geometry of the hinge 3 is determined and these parts conventionally independent are prefabricated by the body with higher precision than this and their position relative to each other by the position of the screw mandrel 9, 12, the screw openings of the foot piece 16, the fingers 25 and the recesses 14 is fixed. It is therefore not necessary to provide higher requirements than with a damperless refrigeration device to the dimensional accuracy of the body in order to ensure a reproducible functioning of the damper 21.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Refrigerator Housings (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Kältegerät, insbesondere ein Haushaltskältegerät, mit einem Korpus, einer an den Korpus angelenkten Tür und einem zwischen türseitigen und korpusseitigen Angriffspunkten angeordneten Dämpfer, der zum Dämpfen einer Schließbewegung der Tür dehnbar und stauchbar ist.The present invention relates to a refrigeration appliance, in particular a household refrigeration appliance, with a body, a door hinged to the body and arranged between the door side and body side attack points damper which is stretchable and compressible for damping a closing movement of the door.
Aus
Aufgabe der vorliegenden Erfindung ist, ein Kältegerät mit gedämpfter Tür anzugeben, bei dem nicht Beschränkungen des für die Dämpfungseinheit verfügbaren Einbauraums eine für die Dämpfungswirkung ungünstige Ausrichtung der Dämpfungseinheit erforderlich machen.The object of the present invention is to specify a refrigeration appliance with a damped door, in which no restrictions on the installation space available for the damping unit make it necessary to position the damping unit in an unfavorable manner for the damping effect.
Die Aufgabe wird gelöst, indem bei einem Kältegerät mit einem Korpus, einer an den Korpus angelenkten Tür und einem zwischen türseitigen und korpusseitigen Angriffspunkten angeordneten Dämpfer, der zum Dämpfen einer Schließbewegung der Tür dehnbar und stauchbar ist, der Dämpfer in eine am Korpus gebildete Aufnahme von dessen Frontseite her eingreift. Da ein beweglicher Kopf des Dämpfers beim Schließen der Tür in die Aufnahme oder Aussparung hinein ausweichen kann, kann auch in dem Moment, in dem die Tür ihre geschlossene Stellung erreicht, die Stauchbewegung der Dämpfungseinheit noch eine quer zur Frontseite orientierte, zum Dämpfen der Tür wirksame Komponente aufweisen. Indem der Dämpfer in eine Aussparung an einer Frontseite des Korpus eingreift, sind Länge und Hub des Dämpfers nicht durch einen zwischen dem Korpus und einer vorgeblendeten Möbeltür verfügbaren Zwischenraum beschränkt und können so groß gemacht werden, wie für eine befriedigende und sichere Dämpfungswirkung erforderlich. Des Weiteren ist diese Lösung nicht auf Einbaugeräte mit vorgeblendeter Möbeltür eingeschränkt, denn da der türseitige Angriffspunkt des Dämpfers bei geschlossener Tür beliebig nahe an der Vorderseite des Korpus liegen kann, kann er sich auch an der vom Hersteller des Geräts montierten wärmeisolierenden Tür befinden. Das Verhalten des Dämpfers kann daher bereits herstellerseitig optimiert sein; vom Hersteller des Kältegeräts nicht zu beeinflussende Randbedingungen wie etwa die Platzierung eines Einbaugeräts in seiner Möbelnische und die Anbringung der Möbeltür an der wärmeisolierenden Tür haben keinen Einfluss auf die Wirksamkeit des Dämpfers.The object is achieved by having in a refrigerator with a body, a door hinged to the body and arranged between the door side and body side attack points damper which is extensible and compressible to dampen a closing movement of the door, the damper in a formed on the body of its front engages. Since a movable head of the damper can escape when closing the door into the receptacle or recess into it, even at the moment in which the door reaches its closed position, the compression movement of the damping unit is still a transversely oriented to the front, effective for damping the door Have component. By the damper engaging in a recess on a front side of the body, the length and stroke of the damper are not limited by a space available between the body and a prefixed furniture door and can be made as large as required for a satisfactory and safe damping effect. Furthermore, this solution is not limited to built-in appliances with hinged furniture door, because the door-side point of the damper with the door closed can be anywhere near the front of the carcass, it can also be located on the heat-insulating door mounted by the manufacturer of the device. The behavior of the damper can therefore already be optimized by the manufacturer; boundary conditions not to be influenced by the manufacturer of the refrigeration device, such as the placement of a built-in appliance in its furniture recess and the attachment of the furniture door to the heat-insulating door have no influence on the effectiveness of the damper.
Bevorzugt ist die Aufnahme als länglich geformte Vertiefung ausgebildet, die die Dämpfungseinheit zumindest weitgehend aufnimmt und die von der Frontseite des Korpus zugänglich ist.Preferably, the receptacle is formed as an elongated recess, which at least largely absorbs the damping unit and which is accessible from the front of the body.
Besonders vorteilhaft ist die Aufnahme als sich zur Rückseite des Korpus hin orientierender, insbesondere sacklochartiger Hülsenkörper ausgebildet, der eine an der Frontseite mündende Öffnung aufweist und die Dämpfungseinheit mantelartig umgibt.Particularly advantageously, the receptacle is designed as a sleeve body oriented towards the rear side of the body, in particular a blind hole-like sleeve, which has an opening which opens out at the front and surrounds the damping unit like a coat.
Zum effektiven Dämpfen der Tür ist es zweckmäßig, dass die Stauch- und Dehnrichtung des Dämpfers wenigstens dann, wenn die Tür nahe ihrer geschlossenen Stellung ist, im Wesentlichen parallel zur Bewegungsrichtung des türseitigen Angriffspunktes ist. Die Parallelität der Stauch- und Dehnrichtung und der Bewegungsrichtung garantiert, dass eine Bewegung der Tür tatsächlich zu einer maßgeblichen Längenänderung des Dämpfers führt und der Dämpfer die Türbewegung somit wirksam beeinflussen kann.For effective damping of the door, it is expedient that the compression and expansion direction of the damper, at least when the door is close to its closed position, is substantially parallel to the direction of movement of the door-side point. The parallelism of the compression and expansion direction and the direction of movement guarantees that a movement of the door actually leads to a significant change in length of the damper and the damper can thus effectively influence the door movement.
Da eine Dämpfung der Türbewegung fernab von ihrer geschlossenen Stellung weder nötig noch erwünscht ist, kann die Bewegungsfreiheit des Dämpfers kleiner als die seines türseitigen Angriffspunktes sein, wobei dann ein Kontakt zwischen dem Dämpfer und dem türseitigen Angriffspunkt verloren geht, wenn die Tür über eine Grenzstellung hinaus geöffnet wird.Since a damping of the door movement far from its closed position is neither necessary nor desired, the freedom of movement of the damper can be smaller than that of its door-side point, then a contact between the damper and the door-side point is lost when the door beyond a limit position is opened.
Es wäre zwar an sich möglich, den Dämpfer in seiner Aussparung in Anlehnung an die Lehre von
Stattdessen sollten der türseitige Angriffspunkt und ein ihn berührender Kopf des Dämpfers quer zur Stauch- und Dehnrichtung gegeneinander beweglich sein. So ist es möglich, den einen Angriffspunkt auf einem durch den Aufbau eines Tür und Korpus verbindenden Scharniers vorgegebenen gekrümmten Weg, den anderen hingegen auf einem geradlinigen Weg zu führen, ohne dass die Gefahr eines Verkantens oder Verklemmens besteht. So reduziert die Querbeweglichkeit von Kopf- und Angriffspunkt gegeneinander die Anforderungen an die Parallelität der Bewegungsrichtung des Angriffspunktes und der Stauch- und Dehnrichtung. Als im Wesentlichen parallel kann hier jede Orientierung gelten, die sicherstellt, dass Angriffpunkt und Kopf nicht in seitlicher Richtung voneinander abgleiten.Instead, the door-side point of attack and a head of the damper touching it should be movable relative to one another transversely to the compression and extension direction. Thus, it is possible to guide the one point of application on a curved path connecting the construction of a door and body, while guiding the other on a rectilinear path, without the risk of jamming or jamming. Thus, the transverse mobility of the head and point of attack against each other reduces the requirements for the parallelism of the direction of movement of the point and the compression and expansion direction. As essentially parallel, any orientation can be used here that ensures that the point of attack and the head do not slide off each other in the lateral direction.
Vorzugsweise ist der türseitige Angriffspunkt Teil eines Mehrgelenkscharniers, das die Tür mit dem Korpus verbindet. Dieses Scharnier muss grundsätzlich kräftig genug ausgelegt sein, um das Gewicht der Tür und gegebenenfalls von in Türabstellern deponiertem Kühlgut zu tragen, so dass ein Angriffspunkt, der robust genug ist, um die Kraft des Dämpfers aufzufangen, dort ohne Aufwand bereit gestellt werden kann, wohingegen an anderen Stellen der Tür meist eine Verstärkung erforderlich würde.Preferably, the door-side point of attack is part of a multi-joint hinge, which connects the door to the body. This hinge must in principle be strong enough to carry the weight of the door and possibly deposited in door cabinets refrigerated goods, so that a point of attack that is robust enough to absorb the force of the damper can be provided there without effort, whereas In other places the door usually a reinforcement would be required.
Um die Kräfte des Dämpfers aufzufangen, ist die Frontseite des Korpus vorzugsweise in Höhe der Aussparung durch ein Hinterlegteil verstärkt.In order to absorb the forces of the damper, the front of the body is preferably reinforced in height of the recess by a backing part.
Insbesondere kann die Aussparung durch eine am Hinterlegteil feste Hülse gebildet sein.In particular, the recess may be formed by a sleeve fixed to the backing part.
Besonders bevorzugt ist, dass die Hülse mit dem Hinterlegteil einteilig ist. Ein solcher einteiliger Aufbau ist in einer Spritz- oder Gusstechnik rationell zu fertigen.It is particularly preferred that the sleeve is integral with the backing part. Such a one-piece construction is to produce rationally in a spraying or casting technique.
Ein Scharnier, das die Tür mit dem Korpus verbindet, wie etwa das bereits oben erwähnte Mehrgelenkscharnier, ist zweckmäßigerweise ebenfalls an dem Hinterlegteil verankert, um den Aufwand beim Zusammenbau des Kältegeräts zu minimieren.A hinge that connects the door to the body, such as the multi-joint hinge already mentioned above, is also conveniently anchored to the backing member to minimize the expense of assembling the refrigerator.
Herkömmlicherweise umfasst ein solches Hinterlegteil eine Platte, die sich hinter einer Frontseite des Korpus erstreckt und an der ein Fußstück des Scharniers über mehrere Schrauben, Nieten oder dergleichen befestigt ist. Wenn das Hinterlegteil auch die Hülse aufnimmt, geht Platz zur Befestigung der Schrauben bzw. Nieten verloren. Daher umfasst erfindungsgemäß das Hinterlegteil vorzugsweise einen Abschnitt, der sich hinter einer Seitenfläche des Korpus erstreckt, und ein Fußstück des Scharniers ist an diesem Abschnitt verankert.Conventionally, such a backing part comprises a plate which extends behind a front side of the body and to which a foot piece of the hinge is fastened via a plurality of screws, rivets or the like. If the backing part also receives the sleeve, space for fastening the screws or rivets is lost. Therefore, according to the present invention, the backing member preferably includes a portion that extends behind a side surface of the body, and a root of the hinge is anchored to this portion.
Wenn das Hinterlegteil wenigstens zwei Verankerungspunkte für das Fußstück des Scharniers aufweist, ist es aus statischen Gründen zweckmäßig, dass die Verankerungspunkte nicht auf einer gleichen Seite der Aussparung angeordnet sind, sondern dass die Aussparung von den Verankerungspunkten umgeben ist.If the backing part has at least two anchoring points for the foot piece of the hinge, it is expedient for static reasons that the anchoring points are not arranged on the same side of the recess, but that the recess is surrounded by the anchoring points.
Wenn die Gegenkraft, die der Dämpfer einer Schließbewegung der Tür entgegensetzt, im Wesentlichen elastischer Art ist, indem sie z.B. von einer durch das Schließen der Tür elastisch verformten Feder des Dämpfers erzeugt ist, tritt das Problem auf, dass die Gegenkraft mit zunehmender Verformung der Feder anwächst, und dass die Tür nicht schließt, wenn der ihr verliehene Schwung nicht ausreicht, oder dass sie durch die Kraft der Feder aus der geschlossenen Stellung wieder heraus getrieben wird. Um dies zu vermeiden, wird zweckmäßigerweise ein Dämpfer verwendet, dessen der Schließbewegung entgegen gesetzte Gegenkraft wenigstens überwiegend inelastisch ist.When the counterforce which the damper opposes to a closing movement of the door is substantially elastic in nature, eg by closing the door spring is produced elastically deformed, the problem arises that the counterforce increases with increasing deformation of the spring, and that the door does not close when the imparted momentum is insufficient, or that they by the force of the spring from the closed position is driven out again. To avoid this, it is expedient to use a damper whose counteracting opposing force is at least predominantly inelastic.
Ein kleiner elastischer Beitrag zur Gegenkraft ist allerdings wünschenswert, um sicher zu stellen, dass der Dämpfer sich beim Öffnen der Tür selbsttätig wieder strecken kann.A small elastic contribution to the counterforce is desirable, however, to ensure that the damper can automatically stretch when opening the door again.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen unter Bezugnahme auf die beigefügten Figuren.Further features and advantages of the invention will become apparent from the following description of embodiments with reference to the accompanying figures.
- Fig. 1Fig. 1
- eine schematische Ansicht von Teilen des Korpus eines Kältegeräts und einer Tür, bei denen die Aufhängung eines Korpus und Tür verbindenden Scharniers durch ein Hinterlegteil stabilisiert ist;a schematic view of parts of the body of a refrigerator and a door in which the suspension of a body and door connecting hinge is stabilized by a backing part;
- Fig. 2Fig. 2
- eine perspektivische Ansicht des Hinterlegteils von hinten;a perspective view of the backing part from behind;
- Fig. 3Fig. 3
- eine perspektivische Ansicht des Hinterlegteils von vorn;a perspective view of the backing part from the front;
- Fig. 4Fig. 4
- einen horizontalen Schnitt durch das in einer Ecke des Kältegerätekorpus montierte Hinterlegteil und ein daran befestigtes Mehrgelenkscharnier; unda horizontal section through the mounted in a corner of the refrigerator carcass backing and attached thereto multi-joint hinge; and
- Fig. 5Fig. 5
- einen schematischen axialen Schnitt durch einen Dämpfer des Hinterlegteils.a schematic axial section through a damper of the backing part.
Das obere dieser beiden Hinterlegteile 5 ist in
Rechts von der Öffnung 19 befinden sich zwei ortsfeste Achsen 22, 23 des Mehrgelenkscharniers 3, die den Zugang zur Grundplatte 17 rechts von der Öffnung 19 versperren und die Platzierung einer weiteren Befestigungsschraube dort unmöglich machen. Um dennoch eine sichere Verankerung des Mehrgelenkscharniers 3 am Korpus 1 zu gewährleisten, hat dessen Fußstück 16 einen rechtwinklig an die Grundplatte 17 angeformten Schenkel 24, der von außen, gegenüber dem Schenkel 8 des Hinterlegteils 5, an der seitlichen Außenwand 1 anliegt. Aus diesem Schenkel 24 sind drei Finger 25 ausgeklinkt, die durch Öffnungen der Außenwand 1 hindurch in die drei Vertiefungen 14 des Hinterlegteils 5 eingreifen. Zusätzlich sind die beiden Schenkel 8, 24 des Fußstücks 16 und des Hinterlegteils 5 durch eine zweite Schraube 18 verbunden, die in den zweiten Schraubdom 12 eingreift. Somit ist das Fußstück 16 des Scharniers 3 am Korpus 1 exakt und dauerhaft fixiert, obwohl seine Grundplatte 17 nur Platz für eine einzige Befestigungsschraube 18 bietet.To the right of the
Die Kolbenstange 20 ist an ihrem freien Ende zu einem Kopf 26 verbreitert, von dem eine orthogonal zur Verschiebungsrichtung der Kolbenstange orientierte Stirnfläche gegen eine Rolle 27 des Scharniers 3 drückt. Die Rolle 27 sitzt drehbar auf einer Achse 34, die ihrerseits beim Öffnen und Schließen der Tür 4 eine strichpunktiert eingezeichnete Kreisbahn um die Achse 22 beschreibt. Die Rolle 27 ist beim Öffnen und Schließen der Tür 4 mit dieser beweglich und stellt daher einen türseitigen Angriffspunkt für den Dämpfer 21 dar. Aufgrund der Orientierung der Stirnfläche und ihres Kontakts mit der drehbaren Rolle 27 werden im Wesentlichen keine quer zur als eine strichpunktierte Gerade eingezeichneten Bewegungsrichtung der Kolbenstange 20 orientierten Kräfte auf den Dämpfer 21 übertragen, die dessen innere Reibung erhöhen und zum Festklemmen führen könnten.The
Die Bewegungsrichtung der Kolbenstange 20 weicht in der dargestellten geschlossenen Stellung des Scharniers 3 nur wenig von der Bewegungsrichtung der Rolle 27 ab. Wie groß diese Abweichung sein darf, hängt von der Breite des Kopfes 26 und seiner Bewegungsfreiheit ab. Sie muss klein genug sein, dass auf dem gesamten Weg, den die Kolbenstange 20 beim Öffnen der Tür 4 zurücklegt, von der als geschlossener, schraffiert ausgefüllter Umriss dargestellten Ausgangsstellung bei geschlossener Tür 4 bis zu einer als gestrichelter Umriss dargestellten Anschlagstellung, über die hinaus die Kolbenstange 20 bedingt durch den Aufbau des Dämpfers 21 nicht vorrücken kann, die Rolle 27 nicht von der Stirnfläche des Kopfes 26 abgleitet. Im hier gezeigten Fall beträgt die Abweichung in der Ausgangsstellung bei geschlossener Tür 4 ca. 20° und nimmt mit dem Vorrücken des Kolbens auf nahezu 0° an der Anschlagstellung ab.The direction of movement of the
Da die Rolle 27 im Wesentlichen nur Kräfte in Längsrichtung der Kolbenstange 20 übertragen kann, besteht keine Gefahr eines Verkantens der Kolbenstange 20 aufgrund der Relativbewegung des Kopfes 26 und der Rolle 27 quer zur Kolbenstange 20.Since the
Wie man leicht sieht, kann der Dämpfer 21 sowohl bei einem Kältegerät in Tischbauweise als auch bei einem Einbaugerät eingesetzt werden, und seine Wirksamkeit ist unabhängig von eventuellen Toleranzen seiner Einbaulage bei Einbau in eine Möbelnische. Sogar Abmessungstoleranzen des Korpus selber haben allenfalls geringe Auswirkungen auf die Wirkung des Dämpfers, da die Hebelarmlänge, mit der er auf die Tür 4 einwirkt, im Wesentlichen nur durch die Gestalt des Hinterlegteils 5 und die Geometrie des Scharniers 3 bestimmt ist und diese Teile herkömmlicherweise unabhängig vom Korpus mit höherer Präzision als dieser vorgefertigt werden und ihre Position relativ zueinander durch die Lage der Schraubdome 9, 12, der Schrauböffnungen des Fußstücks 16, der Finger 25 und der Vertiefungen 14 festgelegt ist. Es ist daher nicht erforderlich, höhere Anforderungen als bei einem dämpferlosen Kältegerät an die Maßhaltigkeit des Korpus zu stellen, um ein reproduzierbares Funktionieren des Dämpfers 21 zu gewährleisten.As you can easily see, the
Claims (19)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102009000843A DE102009000843A1 (en) | 2009-02-13 | 2009-02-13 | Refrigeration appliance with damped door |
Publications (3)
Publication Number | Publication Date |
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EP2218989A2 true EP2218989A2 (en) | 2010-08-18 |
EP2218989A3 EP2218989A3 (en) | 2011-09-14 |
EP2218989B1 EP2218989B1 (en) | 2016-05-18 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP10151871.0A Active EP2218989B1 (en) | 2009-02-13 | 2010-01-28 | Cooler with dampened door |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2687786A3 (en) * | 2012-07-13 | 2016-10-19 | Franc Zmazek | Assembly of a door hinge of an oven of a household appliance with dampened closing |
US20180002966A1 (en) * | 2016-07-01 | 2018-01-04 | Pemko Manufacturing Co. | Apparatus for minimizing closing force of a door |
US10358856B2 (en) | 2016-01-14 | 2019-07-23 | ASSA ABLOY Accessories and Door Controls Group, Inc. | Soft-stop device and system |
US10577843B2 (en) * | 2017-03-29 | 2020-03-03 | Lg Electronics Inc. | Refrigerator |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012210496A1 (en) * | 2012-06-21 | 2013-12-24 | BSH Bosch und Siemens Hausgeräte GmbH | Household appliance e.g. oven has control unit that controls position and direction of movement of door with valve unit |
DE102014010355A1 (en) * | 2014-04-10 | 2015-10-15 | Liebherr-Hausgeräte Ochsenhausen GmbH | Fridge and / or freezer |
DE102022127874A1 (en) | 2022-10-21 | 2024-05-02 | Grass Gmbh | Hinge, especially for refrigerator doors |
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DE20306043U1 (en) | 2003-04-15 | 2004-08-26 | Liebherr-Hausgeräte Ochsenhausen GmbH | A refrigerator or freezer cabinet door has an automatically closing hinge system and a damping unit coming into operation just before closure |
DE102006019332A1 (en) | 2005-04-26 | 2006-12-07 | Suspa Holding Gmbh | Hinge device for refrigerator housing has first part and second part which pivotally swings by means of a hinge whereby a piston-cylinder damping unit is actively arranged between said first part and second part |
-
2009
- 2009-02-13 DE DE102009000843A patent/DE102009000843A1/en not_active Withdrawn
-
2010
- 2010-01-28 EP EP10151871.0A patent/EP2218989B1/en active Active
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US2767011A (en) * | 1954-08-30 | 1956-10-16 | Francis P Buckley | Refrigerator latch mechanism |
US5702168A (en) * | 1995-09-18 | 1997-12-30 | Daewoo Electronics Co., Ltd. | Apparatus for damping a door of refrigerator being open and/or closed |
US20050262868A1 (en) * | 2004-05-17 | 2005-12-01 | Samsung Electronics Co., Ltd. | Automatic door opening and closing apparatus and refrigerator having the same |
GB2416380A (en) * | 2004-07-21 | 2006-01-25 | Nifco Inc | A shock absorbing device for arresting the movement of a moving body |
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DE102008035926A1 (en) * | 2008-08-01 | 2010-02-18 | Suspa Holding Gmbh | Cabinet, particularly refrigerator, has body with side wall, base wall and opening, where base wall is provided with face surface |
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Publication number | Priority date | Publication date | Assignee | Title |
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EP2687786A3 (en) * | 2012-07-13 | 2016-10-19 | Franc Zmazek | Assembly of a door hinge of an oven of a household appliance with dampened closing |
US10358856B2 (en) | 2016-01-14 | 2019-07-23 | ASSA ABLOY Accessories and Door Controls Group, Inc. | Soft-stop device and system |
US20180002966A1 (en) * | 2016-07-01 | 2018-01-04 | Pemko Manufacturing Co. | Apparatus for minimizing closing force of a door |
US10415293B2 (en) * | 2016-07-01 | 2019-09-17 | ASSA ABLOY Accessories and Door Controls Group, Inc. | Apparatus for minimizing closing force of a door |
US10577843B2 (en) * | 2017-03-29 | 2020-03-03 | Lg Electronics Inc. | Refrigerator |
US10941597B2 (en) * | 2017-03-29 | 2021-03-09 | Lg Electronics Inc. | Refrigerator |
Also Published As
Publication number | Publication date |
---|---|
EP2218989A3 (en) | 2011-09-14 |
EP2218989B1 (en) | 2016-05-18 |
DE102009000843A1 (en) | 2010-08-19 |
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