EP2321484B1 - Household appliance - Google Patents

Household appliance Download PDF

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Publication number
EP2321484B1
EP2321484B1 EP09782691.1A EP09782691A EP2321484B1 EP 2321484 B1 EP2321484 B1 EP 2321484B1 EP 09782691 A EP09782691 A EP 09782691A EP 2321484 B1 EP2321484 B1 EP 2321484B1
Authority
EP
European Patent Office
Prior art keywords
door
hinge
damper
toothed rack
shaft
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.)
Active
Application number
EP09782691.1A
Other languages
German (de)
French (fr)
Other versions
EP2321484A1 (en
Inventor
Hasan Yuksel
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Priority to PL09782691T priority Critical patent/PL2321484T3/en
Publication of EP2321484A1 publication Critical patent/EP2321484A1/en
Application granted granted Critical
Publication of EP2321484B1 publication Critical patent/EP2321484B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/20—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices in hinges
    • 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
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/1246—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis
    • E05F1/1253—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a compression spring
    • E05F1/1261—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a compression spring for counterbalancing
    • 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
    • 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
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D7/00—Hinges or pivots of special construction
    • E05D7/08—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions
    • E05D7/081—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions the pivot axis of the wing being situated near one edge of the wing, especially at the top and bottom, e.g. trunnions
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E05Y2201/21—Brakes
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E05Y2201/21—Brakes
    • E05Y2201/212—Buffers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E05Y2201/252—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore characterised by 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 RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E05Y2201/262—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore characterised by type of motion
    • E05Y2201/264—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore characterised by type of motion linear
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefore
    • E05Y2201/404—Motors; Magnets; Springs; Weights; Accessories therefore characterised by the function
    • E05Y2201/422—Motors; Magnets; Springs; Weights; Accessories therefore characterised by the function for opening
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/71—Secondary wings, e.g. pass doors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • 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
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/02—Details of doors or covers not otherwise covered
    • F25D2323/023—Door in door constructions
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/02—Details of doors or covers not otherwise covered
    • F25D2323/024—Door hinges

Definitions

  • the present invention relates to a household appliance comprising a door that opens by rotating forward.
  • doors are used for allowing access to the outside from the spaces containing the stored items thereby enabling loading and unloading.
  • Some of these doors open forward by rotating around a horizontal axis.
  • the doors of ovens and dishwashers and the door-in-door of cooling devices open about a horizontal axis by tilting forward.
  • German patent no DE10146238 a storage container opens by tilting forward on two guide pegs, one on the side wall thereof and the other on the base of the compliment wherein it is emplaced.
  • a dishwasher which comprises a hinge made up of gears and springs for preventing opening of the door in a hard way by its own weight.
  • Document US 2004/0178710 A1 describes a household appliance with a door which opens by rotating around a horizontal axis.
  • a damper is provided which is configured to damp a rotation force penetrated when the door is opened or closed.
  • the damper includes a case filled with oil, and a rotation shaft rotatably mounted in the case. The rotating shaft of the damper is fixed to the door.
  • Document US 1,759,474 describes a refrigerator with a door which opens by rotating around the horizontal axis.
  • a hinge is provided on the refrigerator body for securing the door movably to the body.
  • One shaft each is provided on the side walls of the door, and pin is disposed inside the hinge, fixed close-fittingly by the shaft.
  • a gear is situated inside the hinge, fitted over the pin and rotating together with the pin while the door rotates around the shaft.
  • a toothed rack is disposed inside the hinge for changing the circular motion of the gear into rectilinear motion while the door rotates.
  • a spring is provided for damping the rectilinear motion of the toothed rack.
  • the object of the present invention is to realize a household appliance comprising a door that opens controllably in the horizontal axis.
  • the household appliance designed to fulfill the object of the present invention, explicafied in the first claim and the respective claims thereof, comprises a hinge that provides a door rotatably openable in the horizontal axis to be movably joined to the body, a shaft each on the side walls of the door, a pin each in the hinge whereto the shafts are close fitted, a gear where through the pin passes, a toothed rack which the gear pushes forward or backward while rotating and a damper disposed on the end of the toothed rack that slows down the motion of the door during opening.
  • the household appliance comprises a movable wall on the side of the toothed rack facing the damper.
  • the wall compresses the damper situated on the opposite side of the opening direction of the door.
  • the wall furthermore prevents the door from falling due to its weight by transferring the amortizeing force of the damper to the toothed rack.
  • a box filled with a fluid, for example oil, is used as the damper in the household appliance.
  • One wall of the box is the movable wall that is pushed by the toothed rack.
  • the damper is configured resiliently.
  • the resilient structure becomes deformed, slowing down the pushing motion as the toothed rack pushes the wall towards the damper, and resumes the previous state by slacking off when the toothed rack retreats.
  • the damper is configured as a spring.
  • the wall compresses the spring in the falling direction of the door.
  • the spring pushes the wall hence the gears for returning to its free state and prevents the door from falling abruptly.
  • the door moves controllably while tilting around the horizontal axis and thereby provides a safe and convenient mode of utilization.
  • the household appliance (1) comprises a body (2), an opening (3) arranged on the body (2), allowing access to the interior of the body (2), a door (4) that covers the opening (3) when closed and enables access to the interior from the opening (3) when opened forward by rotating around the horizontal axis and a hinge (5) on the body (2) for securing the door (4) movably to the body (2) ( Figure 1 and Figure 2 ).
  • the household appliance (1) furthermore comprises
  • the shaft (6) which is disposed on the door (4) enables the door (4) to be opened softly and transfers the opening movement directly to the hinge (5) whereas the pin (7) is inside the hinge (5).
  • the shaft (6) rotates together with the door (4) while the door (4) rotatingly opens forward.
  • the shaft (6) transfers this rotational notion to the gear (8) by means of the pin (7) wherein it is inserted.
  • the toothed rack (9) moves difficultly by means of the damper (10) at its end and this slows down the rotational motion of the gear (8) and prevents the door (4) from falling down abruptly.
  • the damper (10) is disposed only on the end of the toothed rack (9) that moves opposite to the opening direction of the door (4) and slows down the movement in this direction.
  • the household appliance (1) comprises a box-like damper (10) containing a fluid (A), having a wall (11) movable in the direction the toothed rack (9) moves while the door (4) opens. While the fluid (A) in the damper (10) shows resistance to the wall (11) pushed by the toothed rack (9), the air is compressed and allows the wall (11) to enter into the box a little. Accordingly, the door (4) is slowed down thus prevented from falling abruptly due to the effect of its weight.
  • Oil and some amount of air are used in the damper (10) as the fluid (A).
  • the household appliance (1) comprises a resiliently configured damper (10) and a movable wall (11).
  • This resiliently structured damper (10) functions as a cushion pad for the wall (11) that is pushed by the toothed rack (9) and slows down the motion of the door (4) by preventing both the toothed rack (9) and the gear (8) from moving rapidly.
  • the household appliance (1) comprises a spring shaped damper (10).
  • One end of the damper (10) bears against the toothed rack (9) and the other end to the wall of the hinge (5).
  • the spring which is compressed and deformed in the forward motion of the door (4), amortizes the forward movement of the toothed rack (9) toward itself. In the upward motion of the door (4), the spring is decompressed and allows the door (4) to be closed easily.
  • the damper (10) is disposed opposite the closing direction of the door (4) thus preventing the door (4) from falling due to its weight. Accordingly, the door (4) is prevented from falling abruptly while closing.
  • the door (4) that opens by rotating around the horizontal axis is prevented from falling uncontrollably due to its weight and damaging the items placed therein, thereby enabling the door (4) to move-controllably and softly.

Description

  • The present invention relates to a household appliance comprising a door that opens by rotating forward.
  • In household appliances, doors are used for allowing access to the outside from the spaces containing the stored items thereby enabling loading and unloading. Some of these doors open forward by rotating around a horizontal axis. For example, the doors of ovens and dishwashers and the door-in-door of cooling devices open about a horizontal axis by tilting forward.
  • Various embodiments relating to the assembly and movement of doors opening by rotating around a horizontal axis are developed in the technique.
  • However, in these embodiments known in the technique, the problem of uncontrollably falling faster than intended in the forward opening doors by rotating in the horizontal axis is encountered, due to the effect of their weight and gravity. This uncontrollable motion can cause adversaries such as the breaking of doors, damaging of the impacted surfaces and impairing of the hinges.
  • For the solution of this problem, in the state of the art Japanese patent application no JP3134475 , gears arranged in the hinge unit of a forward opening door are described which are used in slowing down the opening of the door. This hinge unit is disposed between the arms that secure the door to the wall.
  • In another state of the art embodiment, the German patent no DE10146238 , a storage container opens by tilting forward on two guide pegs, one on the side wall thereof and the other on the base of the compliment wherein it is emplaced.
  • In the state of the art International Patent document no WO2006137039 , a dishwasher is described which comprises a hinge made up of gears and springs for preventing opening of the door in a hard way by its own weight. Document US 2004/0178710 A1 describes a household appliance with a door which opens by rotating around a horizontal axis. A damper is provided which is configured to damp a rotation force penetrated when the door is opened or closed. The damper includes a case filled with oil, and a rotation shaft rotatably mounted in the case. The rotating shaft of the damper is fixed to the door. Document US 1,759,474 describes a refrigerator with a door which opens by rotating around the horizontal axis. A hinge is provided on the refrigerator body for securing the door movably to the body. One shaft each is provided on the side walls of the door, and pin is disposed inside the hinge, fixed close-fittingly by the shaft. A gear is situated inside the hinge, fitted over the pin and rotating together with the pin while the door rotates around the shaft. A toothed rack is disposed inside the hinge for changing the circular motion of the gear into rectilinear motion while the door rotates. A spring is provided for damping the rectilinear motion of the toothed rack.
  • The object of the present invention is to realize a household appliance comprising a door that opens controllably in the horizontal axis.
  • The household appliance designed to fulfill the object of the present invention, explicafied in the first claim and the respective claims thereof, comprises a hinge that provides a door rotatably openable in the horizontal axis to be movably joined to the body, a shaft each on the side walls of the door, a pin each in the hinge whereto the shafts are close fitted, a gear where through the pin passes, a toothed rack which the gear pushes forward or backward while rotating and a damper disposed on the end of the toothed rack that slows down the motion of the door during opening.
  • The household appliance comprises a movable wall on the side of the toothed rack facing the damper. In the doors that are openable by rotating forward, the wall compresses the damper situated on the opposite side of the opening direction of the door. The wall furthermore prevents the door from falling due to its weight by transferring the amortizeing force of the damper to the toothed rack.
  • A box filled with a fluid, for example oil, is used as the damper in the household appliance. One wall of the box is the movable wall that is pushed by the toothed rack.
  • In another embodiment not being part of the present invention, the damper is configured resiliently. The resilient structure becomes deformed, slowing down the pushing motion as the toothed rack pushes the wall towards the damper, and resumes the previous state by slacking off when the toothed rack retreats.
  • In another embodiment not being part of the present invention, the damper is configured as a spring. The wall compresses the spring in the falling direction of the door. The spring, in turn, pushes the wall hence the gears for returning to its free state and prevents the door from falling abruptly.
  • By means of the hinge used in the household appliance of the present invention, the door moves controllably while tilting around the horizontal axis and thereby provides a safe and convenient mode of utilization.
  • An embodiment of a household appliance designed to fulfill the object of the present invention is illustrated in the attached figures, where:
    • Figure 1 - is the perspective view of an embodiment of a household appliance comprising a door-in-door that opens forward by rotating around the horizontal axis.
    • Figure 2 - is the front view of a hinge and a door in an embodiment of the present invention.
    • Figure 3 - is the sideways schematic view of the hinge in an embodiment of the present invention.
    • Figure 4 - is the front schematic view of the hinge in an embodiment of the present invention.
    • Figure 5 - is the perspective schematic view of the hinge in an embodiment of the present invention.
  • The elements illustrated in the figures are numbered as follows:
    1. 1. Household appliance
    2. 2. Body
    3. 3. Opening
    4. 4. Door
    5. 5. Hinge
    6. 6. Shaft
    7. 7. Pin
    8. 8. Gear
    9. 9. Toothed rack
    10. 10. Damper
    11. 11. Wall
  • The household appliance (1) comprises a body (2), an opening (3) arranged on the body (2), allowing access to the interior of the body (2), a door (4) that covers the opening (3) when closed and enables access to the interior from the opening (3) when opened forward by rotating around the horizontal axis and a hinge (5) on the body (2) for securing the door (4) movably to the body (2) (Figure 1 and Figure 2).
  • The household appliance (1) furthermore comprises
    • one shaft (6) each on the side walls of the door (4),
    • a pin (7) disposed inside the hinge (5), fixed close-fittingly by the shaft (6),
    • a gear (8) situated inside the hinge (5), fitted over the pin (7) and rotating together with the pin (7) while the door (4) rotates around the shaft (6),
    • a toothed rack (9) disposed inside the hinge (5), that converts the circular motion of the gear (8) intro rectilinear motion, while the door (4) rotates and
    • a damper (10) inside the hinge (5) situated at one end of the toothed rack (9) and which amortizes the motion of the toothed rack (9) while the door (4) opens.
  • The shaft (6) which is disposed on the door (4) enables the door (4) to be opened softly and transfers the opening movement directly to the hinge (5) whereas the pin (7) is inside the hinge (5). The shaft (6) rotates together with the door (4) while the door (4) rotatingly opens forward. The shaft (6) transfers this rotational notion to the gear (8) by means of the pin (7) wherein it is inserted.
  • However, the toothed rack (9) moves difficultly by means of the damper (10) at its end and this slows down the rotational motion of the gear (8) and prevents the door (4) from falling down abruptly. In doors (4) opening by tilting downward, the damper (10) is disposed only on the end of the toothed rack (9) that moves opposite to the opening direction of the door (4) and slows down the movement in this direction.
  • The household appliance (1) comprises a box-like damper (10) containing a fluid (A), having a wall (11) movable in the direction the toothed rack (9) moves while the door (4) opens. While the fluid (A) in the damper (10) shows resistance to the wall (11) pushed by the toothed rack (9), the air is compressed and allows the wall (11) to enter into the box a little. Accordingly, the door (4) is slowed down thus prevented from falling abruptly due to the effect of its weight.
  • Oil and some amount of air are used in the damper (10) as the fluid (A).
  • In an embodiment not being part of the present invention, the household appliance (1) comprises a resiliently configured damper (10) and a movable wall (11). This resiliently structured damper (10) functions as a cushion pad for the wall (11) that is pushed by the toothed rack (9) and slows down the motion of the door (4) by preventing both the toothed rack (9) and the gear (8) from moving rapidly.
  • In another embodiment not being part of the present invention, the household appliance (1) comprises a spring shaped damper (10). One end of the damper (10) bears against the toothed rack (9) and the other end to the wall of the hinge (5). The spring which is compressed and deformed in the forward motion of the door (4), amortizes the forward movement of the toothed rack (9) toward itself. In the upward motion of the door (4), the spring is decompressed and allows the door (4) to be closed easily.
  • In another embodiment of the present invention, in the doors (4) that open by rotating upward, the damper (10) is disposed opposite the closing direction of the door (4) thus preventing the door (4) from falling due to its weight. Accordingly, the door (4) is prevented from falling abruptly while closing.
  • By means of the present invention, the door (4) that opens by rotating around the horizontal axis is prevented from falling uncontrollably due to its weight and damaging the items placed therein, thereby enabling the door (4) to move-controllably and softly.
  • It is to be understood that the present invention is not limited to the embodiments disclosed above and an expert in the technique can easily introduce different embodiments of the present invention. These should be considered within the scope of the protection postulated by the claims of the present invention.

Claims (1)

  1. A household appliance (1) that comprises a body (2), an opening (3) arranged on the body (2), allowing access to the interior of the body (2), a door (4) that covers the opening (3) when closed and enables access to the interior from the opening (3) when opened forward by rotating around a horizontal axis and a hinge (5) on the body (2) for securing the door (4) movably to the body (2), the hinge (5) comprising
    - one shaft (6) each on the side walls of the door (4),
    - a pin (7) disposed inside the hinge (5), fixed close-fittingly by the shaft (6),
    - a gear (8) situated inside the hinge (5), fitted over the pin (7) and rotating together with the pin (7) while the door (4) rotates around the shaft (6),
    - a toothed rack (9) disposed inside the hinge (5), that changes the circular motion of the gear (8) into rectilinear motion while the door (4) rotates and
    - a damper (10) inside the hinge (5) situated at one end of the toothed rack (9) and which amortizes the motion of the toothed rack (9) while the door (4) opens.
    characterized by a box-like damper (10) containing oil as a fluid (A) and some amount of air therein, the box-like damper (10) having a movable wall (11) in the direction the toothed rack (9) moves while the door (4) opens.
EP09782691.1A 2008-09-08 2009-09-07 Household appliance Active EP2321484B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09782691T PL2321484T3 (en) 2008-09-08 2009-09-07 Household appliance

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR200806781 2008-09-08
PCT/EP2009/061549 WO2010026247A1 (en) 2008-09-08 2009-09-07 A household appliance

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EP2321484A1 EP2321484A1 (en) 2011-05-18
EP2321484B1 true EP2321484B1 (en) 2017-03-08

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EP09782691.1A Active EP2321484B1 (en) 2008-09-08 2009-09-07 Household appliance

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WO (1) WO2010026247A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10234190B2 (en) 2016-12-06 2019-03-19 Haier Us Appliance Solutions, Inc. Locking assemblies for door-in-door refrigerator appliances
IT201800006078A1 (en) * 2018-06-06 2019-12-06 GUIDE AND SUPPORT DEVICE FOR A FURNITURE DOOR WITH FOLDING DOWNWARD OPENING

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030056328A1 (en) * 2001-09-27 2003-03-27 Mansfield Assemblies Co. Dampened hinge system for appliance door

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1759474A (en) * 1928-04-10 1930-05-20 Leland J Volquardsen Spring hinge for ice-box doors
KR20040080070A (en) * 2003-03-10 2004-09-18 엘지전자 주식회사 Refrigerator having a home bar door with an oil damper
WO2008050988A1 (en) * 2006-10-24 2008-05-02 I-One Innotech Co., Ltd. Hinge device capable for controlling height

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030056328A1 (en) * 2001-09-27 2003-03-27 Mansfield Assemblies Co. Dampened hinge system for appliance door

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EP2321484A1 (en) 2011-05-18
PL2321484T3 (en) 2017-08-31
WO2010026247A1 (en) 2010-03-11

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