EP2218989A2 - Cooler with dampened door - Google Patents

Cooler with dampened door Download PDF

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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
Application number
EP10151871A
Other languages
German (de)
French (fr)
Other versions
EP2218989A3 (en
EP2218989B1 (en
Inventor
Alexander GÖRZ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2218989A2 publication Critical patent/EP2218989A2/en
Publication of EP2218989A3 publication Critical patent/EP2218989A3/en
Application granted granted Critical
Publication of EP2218989B1 publication Critical patent/EP2218989B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00General constructional features
    • F25D23/02Doors; Covers
    • F25D23/028Details
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00Hinges with pins
    • E05D3/06Hinges with pins with two or more pins
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00Construction of single parts, e.g. the parts for attachment
    • E05D5/02Parts for attachment, e.g. flaps
    • E05D5/06Bent flaps
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00Braking devices, e.g. checks; Stops; Buffers
    • E05F5/02Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00Hinges with pins
    • E05D3/06Hinges with pins with two or more pins
    • E05D3/16Hinges with pins with two or more pins with seven parallel pins and four arms
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00Braking devices, e.g. checks; Stops; Buffers
    • E05F5/06Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
    • E05F5/10Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops with piston brakes
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2201/00Constructional elements; Accessories therefor
    • E05Y2201/20Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/21Brakes
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2201/00Constructional elements; Accessories therefor
    • E05Y2201/20Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/252Type of friction
    • E05Y2201/254Fluid or viscous friction
    • E05Y2201/256Fluid or viscous friction with pistons or vanes
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2201/00Constructional elements; Accessories therefor
    • E05Y2201/20Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/262Type of motion, e.g. braking
    • E05Y2201/264Type of motion, e.g. braking linear
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2600/00Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/60Mounting or coupling members; Accessories therefor
    • E05Y2600/626Plates or brackets
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING 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
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/30Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/31Application 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

The device has a door (4) hinged at outer wall (1) and a frame (2), and a damper arranged between door-side and body side contact points. The damper is expandable for damping a closing movement of the door. The damper is engaged at a front side (2a) of the receiver formed at the outer wall and the frame. The receiver is formed as an elongated depression or hole-like sleeve body, and accessible from a front side of the outer wall and the frame, where freedom of movement of the damper is smaller than that of the contact points. A multiple-joint hinge (3) connects the door with a body.

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 DE 203 06 043 U1 ist ein Kühlschrank mit einer solcherart gedämpften Tür bekannt, bei dem ein Dämpfer am scharnierabgewandten Rand einer Kühlschranktür montiert und mit dieser beweglich ist. Kurz bevor die Tür ihre geschlossene Stellung erreicht, stößt eine Spitze des Dämpfers gegen den Korpus, und eine daraus resultierende Stauchung des Dämpfers verzögert die Schließbewegung der Tür. Infolge seiner Platzierung zwischen der Vorderseite des Korpus und einer vorgeblendeten Möbeltür ist die Länge und damit der Hub des Dämpfers eng begrenzt. Um wirksam zu sein, muss der Dämpfer daher eine starke Verzögerung ausüben, und es besteht die Gefahr, dass das Anschlaggeräusch, das bei einer ungedämpften Tür auftritt, wenn diese gegen den Kältegerätekorpus stößt, lediglich durch ein entsprechendes Geräusch beim Zusammentreffen von Korpus und Dämpfer ersetzt wird.Out DE 203 06 043 U1 For example, 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 schlägt eine weiter entwickelte Dämpferkonstruktion für eine Kältegerätetür vor, bei der eine zwischen Korpus montierte Kolben-Zylinder-Dämpfungseinheit in jeder Stellung der Tür mit Tür und Korpus in Verbindung steht und mit der Türbewegung kontinuierlich gestaucht und gedehnt wird. Der gemäß der erstgenannten Schrift mögliche harte Anschlag beim Aufeinandertreffen von Dämpfer und Korpus ist dadurch ausgeschlossen. Die Dämpfungseinheit führt während des Schließens der Tür eine Schwenkbewegung aus. Da die Dämpfungseinheit bei geschlossener Tür zwischen dieser und der Vorderseite des Korpus Platz finden muss, ist der für den Dämpfer verfügbare Einbauraum sehr begrenzt. Um den Platzbedarf der Dämpfungseinheit wenigstens bei geschlossener Tür zu minimieren, muss sich die Dämpfungseinheit beim Schließen der Tür immer weiter einer Orientierung annähern, in der ihre Stauch- und Dehnrichtung parallel zur Tür und zur Vorderseite des Korpus verläuft. In dieser Orientierung ändert sich jedoch die Länge der Dämpfungseinheit bei einer Schwenkung der Tür nicht, das heißt, die Dämpfungseinheit ist unwirksam. Dies macht es in der Praxis sehr schwierig, mit Hilfe der Dämpfungseinheit die Bewegung der Tür im entscheidenden Moment, unmittelbar vor dem Anschlagen an die Vorderseite des Korpus, in der gewünschten Weise zu steuern. 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. In order to minimize the space requirement of the damping unit at least when the door is closed, 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.

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 DE10 2006 019 332 A1 schwenkbar zu montieren; der Einfachheit halber ist jedoch bevorzugt, dass die Stauch- und Dehnrichtung des Dämpfers in Bezug zum Korpus fest ist.It would be possible in itself, 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.

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.

Es zeigen:Show it:

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.

Fig. 1 zeigt eine perspektivische Ansicht schräg von hinten einer seitlichen Außenwand 1 und eines vorderen als Frontseite dienenden Rahmens 2 eines Kältegerätekorpus (2a) sowie einer an dem Kältegerätekorpus mit Hilfe von Scharnieren 3 schwenkbar aufgehängten Tür 4. Der Korpus hat einen dem Fachmann vertrauten Aufbau mit einem in der Fig. nicht dargestellten, in einer zentralen Öffnung des vorderen Rahmens 2 befestigten, aus Kunststoff tiefgezogenen Innenbehälter und einer isolierenden Füllung aus einem Schaumstoff zwischen dem Innenbehälter und Außenwänden des Korpus wie etwa der gezeigten Außenwand 1. Die Außenwand 1, der Rahmen 2 und andere die äußere Hülle des Korpus bildende Teile bestehen in üblicher Weise aus dünnen Blechen, die von sich aus nicht tragfähig genug sind, um daran die Tür 4 aufzuhängen. Um dennoch eine ausreichende Tragfähigkeit zu erzielen, ist die Außenwand 1 schaumseitig durch Hinterlegteile 5 stabilisiert, an denen die Scharniere 3 der Tür 4 angreifen. 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. In order nevertheless to achieve a sufficient load capacity, the outer wall 1 is foam-stabilized by Hinterlegteile 5, where the hinges 3 of the door 4 attack.

Das obere dieser beiden Hinterlegteile 5 ist in Fig. 2 und 3 in perspektivischen Ansichten von hinten bzw. von vorn gezeigt. Das einteilig durch Guss von Metall oder Spritzen eines faserverstärkten Kunststoffs gefertigte Hinterlegteil 5 hat eine Grundplatte 6, die vorgesehen ist, um in Kontakt mit dem vorderen Rahmen 2 montiert zu werden. Die Vorderseite der Grundplatte 6 weist eine zentrale zylindrische als Aufnahme ausgebildete Aussparung 7 auf. An einen Rand der Grundplatte 6 schließt rechtwinklig ein Schenkel 8 an, der von innen an der seitlichen Außenwand 1 anliegen soll. Ein Schraubdom 9 an einem vom Schenkel 8 abgewandten Bereich der Grundplatte 6 ist vorgesehen, um eine Schraube aufzunehmen, die ein Fußstück des Scharniers 3 an der Außenseite des Rahmens 2 fixiert. In etwa mittig zwischen dem Schraubdom 9 und dem Schenkel 8 geht von der Rückseite der Grundplatte 6 eine lang gestreckte Hülse 10 aus, die sich horizontal und unter einem spitzen Winkel zur Außenwand 1 bzw. dem Schenkel 8 in das Isolationsmaterial des Korpus hinein erstreckt und die Aussparung 7 vom Isolationsmaterial trennt. Zur Versteifung ist die Hülse 10 mit dem Schenkel 8 durch eine horizontale Platte 11 verbunden. Ein zweiter Schraubdom 12, der von dem Schenkel 8 ausgeht, ist zum Teil mit der Platte 11 verschmolzen. Vorsprüngen 13 an der Innenseite des Schenkels 8 entsprechen jeweils Vertiefungen 14 an seiner die Außenwand 1 berührenden Außenseite. Die Vertiefungen 14 sind rings um eine Öffnung 15 des zweiten Schraubdoms 12 verteilt.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. Approximately in the middle between the screw dome 9 and the leg 8 is from the back of the base plate 6, 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. For stiffening, 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 zeigt einen horizontalen Schnitt durch eine Ecke des Kältegerätekorpus, durch das von innen am vorderen Rahmen 2 und der seitlichen Außenwand 1 anliegende Hinterlegteil 5 und das an dem Hinterlegteil 5 befestigte Mehrgelenkscharnier 3. Ein Fußstück 16 dieses Scharniers 3 hat in an sich bekannter Weise eine Grundplatte 17, die außen am vorderen Rahmen 2 anliegt und diesen zusammen mit der Grundplatte 6 des Hinterlegteils 5 einklemmt. Hierzu greift eine Schraube 18 durch ein Loch der Grundplatte 17 in den ersten Schraubdom 9 des Hinterlegteils 5 ein. Dort, wo bei einer herkömmlichen Kältegerätekonstruktion eine zweite Schraube in einen zweiten Schraubdom des Hinterlegteils eingreifen würde, liegt hier eine großflächige Öffnung 19 der Grundplatte 17 der Hülse 10 des Hinterlegteils 5 gegenüber, und eine Kolbenstange 20 eines Kolben-Zylinder-Dämpfers 21 erstreckt sich durch die Öffnung 19. Der Dämpfer 21 ist in die Hülse 10 formschlüssig eingeschoben, und ein Boden 33 der Hülse bildet einen korpusseitigen Angriffspunkt, an dem in eine in Längsrichtung des Dämpfers 21 wirkende Druckkraft in den Korpus eingeleitet wird. 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 Hinterlegteil 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. For this purpose, a screw 18 engages through a hole of the base plate 17 in the first Schraubdom 9 of the backing part 5 a. Where, in a conventional refrigeration device, a second screw would engage in a second Schraubdom 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.

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 opening 19 are two fixed axes 22, 23 of the multi-joint hinge 3, which obstruct access to the base plate 17 to the right of the opening 19 and make the placement of another fixing screw impossible there. In order nevertheless to ensure a secure anchoring of the multi-joint hinge 3 on the body 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. For this leg 24 three fingers 25 are notched, which engage through openings in the outer wall 1 into the three recesses 14 of the backing part 5. In addition, 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. Thus, the foot piece 16 of the hinge 3 is fixed exactly and permanently on the body 1, although its base plate 17 only offers space for a single fastening screw 18.

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 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.

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 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.

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 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 zeigt schematisch einen Schnitt durch den Dämpfer 21. Der Dämpfer hat zwei Kammern 28, 29 beiderseits eines beweglichen Kolbens 30. Die Kammern 28, 29 kommunizieren miteinander über eine oder mehrere enge Durchgänge 31 des Kolbens 30. Wenn beim Schließen der Tür der Dämpfer 21 gestaucht wird und infolgedessen die rechte Kammer 29 verkleinert wird, strömt Flüssigkeit über einen Durchgang 31 in die linke Kammer 28, und die Viskosität der sich stauenden Flüssigkeit erzeugt eine Gegenkraft, die sich inelastisch der Stauchung des Dämpfers 21 widersetzt. Da gleichzeitig die Kolbenstange 20 in den Dämpfer 21 hinein geschoben wird, verringert sich das Volumen der Kammer 29 stärker, als das der Kammer 28 zunimmt, und das in den Kammern 28, 29 enthaltene Gas wird komprimiert. Hierdurch baut sich eine elastische Rückstellkraft auf, die dazu führt, dass die Kolbenstange 20 nach dem Öffnen der Tür 4 selbsttätig wieder bis zur gestrichelten Stellung der Fig. 4 ausfährt. Das Verhältnis zwischen der von der überströmenden Flüssigkeit verursachten inelastischen Gegenkraft, die sich jeder Verschiebung des Kolbens 30, egal in welche Richtung, widersetzt, zu der elastischen Kraft des komprimierten Gases, die den Kolben 30 in die ausgefahrene Stellung treibt, ist übür das Verhältnis von Gas zu Flüssigkeit in den Kammern 28, 29 willkürlich einstellbar. Die elastische Kraft kann daher gering genug gehalten werden, damit die Tür 4 sicher in ihrer geschlossenen Stellung gehalten wird, sei es durch die Schließkraft einer Magnetdichtung zwischen Tür 4 und Korpus oder durch eine Feder des Scharniers 3, die die Tür 4 in ihre geschlossene Stellung zieht. 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. At the same time as the piston rod 20 is pushed into 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. As a result, 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.

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 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.

Claims (19)

Kältegerät, insbesondere Haushaltskältegerät, mit einem Korpus (1, 2), einer an dem Korpus (1, 2) angelenkten Tür (4) und einem zwischen türseitigen und korpusseitigen Angriffspunkten (27; 33) angeordneten Dämpfer (21), der zum Dämpfen zumindest einer Schließbewegung der Tür (4) dehnbar und stauchbar ist, dadurch gekennzeichnet, dass der Dämpfer (21) in eine am Korpus (2) gebildete Aufnahme (7) von dessen Frontseite (2a) her zumindest abschnittsweise eingreift.Refrigerating appliance, in particular household refrigerating appliance, with a body (1, 2), a door (4) articulated on the body (1, 2) and a damper (21) arranged between door-side and body-side engaging points (27), at least for damping a closing movement of the door (4) is stretchable and compressible, characterized in that the damper (21) at least partially engages in a receptacle (7) formed on the body (2) from its front side (2a). Kältegerät nach Anspruch 1, dadurch gekennzeichnet, dass die Aufnahme (7) als längliche Vertiefung ausgebildet ist, die von der Frontseite (2a) des Korpus (2) zugänglich ist.Refrigerating appliance according to claim 1, characterized in that the receptacle (7) is formed as an elongated recess which is accessible from the front side (2a) of the body (2). Kältegerät nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass sich die Aufnahme (7) zumindest annähernd zur Rückseite des Korpus (2) hin erstreckt.Refrigerating appliance according to claim 1 or 2, characterized in that the receptacle (7) extends at least approximately to the rear side of the body (2). Kältegerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Aufnahme (7) als sacklochartiger Hülsenkörper ausgebildet ist, dessen Öffnung an der Frontseite (2a) mündet.Refrigerating appliance according to one of claims 1 to 3, characterized in that the receptacle (7) is designed as a blind-hole-like sleeve body, the opening of which opens on the front side (2a). Kältegerät nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass wenigstens wenn die Tür (4) nahe ihrer geschlossenen Stellung ist, ein zwischen der Stauch- und Dehnrichtung des Dämpfers (21) und der Bewegungsrichtung des türseitigen Angriffspunktes (27) aufgespannter Winkel kleiner als 45° ist.Refrigerating appliance according to one of claims 1 to 4, characterized in that at least when the door (4) is close to its closed position, a between the compression and expansion direction of the damper (21) and the direction of movement of the door-side engagement point (27) spanned angle smaller than 45 °. Kältegerät nach Anspruch 5, dadurch gekennzeichnet, dass die Stauch- und Dehnrichtung und die Bewegungsrichtung im Wesentlichen parallel sind.Refrigerating appliance according to claim 5, characterized in that the compression and expansion direction and the direction of movement are substantially parallel. Kältegerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Bewegungsfreiheit des Dämpfers (21) kleiner als die des türseitigen Angriffspunktes (27) ist und dass ein Kontakt zwischen dem Dämpfer (21) und dem türseitigen Angriffspunkt (27) verloren geht, wenn die Tür (4) über eine Grenzstellung hinaus geöffnet ist.Refrigerating appliance according to one of the preceding claims, characterized in that the freedom of movement of the damper (21) is smaller than that of the door-side engagement point (27) and that a contact between the Damper (21) and the door-side engagement point (27) is lost when the door (4) is opened beyond a limit position. Kältegerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Stauch- und Dehnrichtung des Dämpfers (21) in Bezug zum Korpus (1, 2) fest ist.Refrigerating appliance according to one of the preceding claims, characterized in that the compression and expansion direction of the damper (21) with respect to the body (1, 2) is fixed. Kältegerät nach Anspruch 8, dadurch gekennzeichnet, dass der türseitige Angriffspunkt (27) und ein ihn berührender Kopf (26) des Dämpfers (21) quer zur Stauch- und Dehnrichtung gegeneinander beweglich sind.Refrigerating appliance according to claim 8, characterized in that the door-side engagement point (27) and a head touching him (26) of the damper (21) are movable transversely to the compression and expansion direction against each other. Kältegerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der türseitige Angriffspunkt (27) Teil eines Mehrgelenkscharniers (3) ist, das die Tür (4) mit dem Korpus (1, 2) verbindet.Refrigerating appliance according to one of the preceding claims, characterized in that the door-side engagement point (27) is part of a multi-joint hinge (3) which connects the door (4) with the body (1, 2). Kältegerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Frontseite (2) in Höhe der Aufnahme (7) durch ein Hinterlegteil (5) verstärkt ist.Refrigerating appliance according to one of the preceding claims, characterized in that the front side (2) in the amount of the receptacle (7) by a backing part (5) is reinforced. Kältegerät nach Anspruch 11, dadurch gekennzeichnet, dass die als Hülsenkörper ausgebildete Aufnahme (7) mit dem Hinterlegteil (5) verbunden ist.Refrigerating appliance according to claim 11, characterized in that the receptacle (7) designed as a sleeve body is connected to the backing part (5). Kältegerät nach Anspruch 12, dadurch gekennzeichnet, dass der Hülsenkörper (10) mit dem Hinterlegteil (5) einteilig, insbesondere einstoffig ausgebildet ist.Refrigerating appliance according to claim 12, characterized in that the sleeve body (10) with the backing part (5) is integrally formed, in particular einstoffig. Kältegerät nach einem der Ansprüche 11 bis 13, dadurch gekennzeichnet, dass das Hinterlegteil (5) in einer Spritz- oder Gusstechnik gefertigt ist.Refrigerating appliance according to one of claims 11 to 13, characterized in that the backing part (5) is manufactured in a spraying or casting technique. Kältegerät nach einem der Ansprüche 11 bis 14, dadurch gekennzeichnet, dass ein Scharnier (3), das die Tür (4) mit dem Korpus (1, 2) verbindet, an dem Hinterlegteil (5) verankert ist.Refrigerating appliance according to one of claims 11 to 14, characterized in that a hinge (3) which connects the door (4) with the body (1, 2) is anchored to the backing part (5). Kältegerät nach Anspruch 15, dadurch gekennzeichnet, dass das Hinterlegteil (5) einen Abschnitt (8) umfasst, der sich hinter einer Seitenfläche (1) des Korpus (1, 2) erstreckt, und dass ein Fußstück (16) des Scharniers (3) an diesem Abschnitt (8) verankert ist.Refrigerating appliance according to claim 15, characterized in that the backing part (5) comprises a portion (8) located behind a side surface (1) of the body (1, 2), and that a foot piece (16) of the hinge (3) is anchored to this section (8). Kältegerät nach Anspruch 15 oder 16, dadurch gekennzeichnet, dass das Hinterlegteil (5) wenigstens zwei Verankerungspunkte (9, 12, 14) für das Fußstück (16) des Scharniers (3) aufweist und dass die Aufnahme (7) von den Verankerungspunkten (9, 12, 14) umgeben ist.Refrigerating appliance according to claim 15 or 16, characterized in that the backing part (5) has at least two anchoring points (9, 12, 14) for the foot piece (16) of the hinge (3) and that the receptacle (7) of the anchoring points (9 , 12, 14) is surrounded. Kältegerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine Gegenkraft, die der Dämpfer (21) der Schließbewegung der Tür (4) entgegensetzt, wenigstens überwiegend inelastisch ist.Refrigerating appliance according to one of the preceding claims, characterized in that a counterforce which opposes the damper (21) of the closing movement of the door (4) is at least predominantly inelastic. Kältegerät nach Anspruch 18, dadurch gekennzeichnet, dass die Gegenkraft teilweise elastisch ist.Refrigerating appliance according to claim 18, characterized in that the counterforce is partially elastic.
EP10151871.0A 2009-02-13 2010-01-28 Cooler with dampened door Active EP2218989B1 (en)

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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
US20180002966A1 (en) * 2016-07-01 2018-01-04 Pemko Manufacturing Co. Apparatus for minimizing closing force of a door
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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
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DE102022127874A1 (en) 2022-10-21 2024-05-02 Grass Gmbh Hinge, especially for refrigerator doors

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US10358856B2 (en) 2016-01-14 2019-07-23 ASSA ABLOY Accessories and Door Controls Group, Inc. Soft-stop device and system
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EP2218989B1 (en) 2016-05-18
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