WO2009116094A1 - Oven with bottom-hinged door with no handle - Google Patents

Oven with bottom-hinged door with no handle Download PDF

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Publication number
WO2009116094A1
WO2009116094A1 PCT/IT2008/000177 IT2008000177W WO2009116094A1 WO 2009116094 A1 WO2009116094 A1 WO 2009116094A1 IT 2008000177 W IT2008000177 W IT 2008000177W WO 2009116094 A1 WO2009116094 A1 WO 2009116094A1
Authority
WO
WIPO (PCT)
Prior art keywords
door
open
oven
locking
push
Prior art date
Application number
PCT/IT2008/000177
Other languages
French (fr)
Inventor
Filippo Filippi
Original Assignee
Filippi S.R.L.
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 Filippi S.R.L. filed Critical Filippi S.R.L.
Priority to PCT/IT2008/000177 priority Critical patent/WO2009116094A1/en
Publication of WO2009116094A1 publication Critical patent/WO2009116094A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F24C15/022—Latches
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/02—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means
    • E05B47/023—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means the bolt moving pivotally or rotatively
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
    • E05C19/02—Automatic catches, i.e. released by pull or pressure on the wing
    • E05C19/022—Released by pushing in the closing direction
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F24C15/023—Mounting of doors, e.g. hinges, 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
    • 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
    • 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
    • E05F5/027—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops with closing action
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/20—Combinations of elements
    • E05Y2800/22—Combinations of elements of not identical elements of the same category, e.g. combinations of not identical springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/308—Application of doors, windows, wings or fittings thereof for domestic appliances for ovens

Definitions

  • the present invention concerns the sector of kitchen appliances and in particular it concerns kitchen ovens.
  • Kitchen ovens are known, even in built-in versions, that are equipped with an oven-hinged door.
  • Oven doors are usually equipped with a handle to allow the door to be opened and closed with no need for the hand to come into contact with the hot wall or glass panel of the oven door.
  • At least one spring mechanism usually integrated in the door hinge, keeps the oven door closed, so that the gasket of the door adheres thoroughly to the edge of the oven, thus preventing the heat from expanding out of the oven.
  • Oven door hinges are widely used that are manufactured separately and installed on the oven door. Said hinges are constructed in such a way as to allow application and complete detachment of the door from the oven by simple insertion or withdrawal of their hook-shaped part into/from suitable seats created in or fixed to the oven body.
  • the spring mechanism integrated in the hinges of oven doors is such as to make the door constantly adhere to the oven structure so that the gaskets present on the oven body or on the door prevent the hot air from expanding out of the oven's inner compartment.
  • To open the oven door it is necessary to overcome the initial resistance of said spring mechanism and open the door beyond a given angle, so that the thrusting action of said spring mechanism is nullified by the shape of the mechanism itself.
  • to close the oven door it is sufficient to start the closing manoeuvre and continue it until the spring mechanism performs its function again and closes or at least facilitates closing of the door.
  • Ovens are known that adopt the so-called cold doors, that is, doors consisting of several coupled glass panes adhering to each other with or without air spaces, so that the external surface of the door has a temperature that is much lower than the inner temperature, usually almost corresponding to the temperature of the room where the oven is installed.
  • Doors with air space are also known, where an air flow is present between the glass panes, in such a way as to reduce heat transmission between the inner and outer surface of the door.
  • Oven door handles have production and storage costs and require labour for application and installation on the ovens during production, with consequent increases in assembly costs.
  • Oven door handles are often protruding elements that may hinder the passage of people or objects, like for example food trolleys, may cause clothes to become entangled with them and damage them, besides increasing overall dimensions for the purpose of storage.
  • a new domestic oven has been designed and implemented that has a door with no handle, equipped with a locking and release device and a device for rotating the door open and braking it.
  • One of the objects of the invention is to construct a new kitchen oven that has no parts protruding from the door.
  • Another object of the new oven is to eliminate costs deriving from the production and assembly of the handle.
  • a further object of the new oven is to allow the user to open the door even with busy hands.
  • a further object of the present invention is to provide a mechanism that keeps the door closed.
  • a further object of the present invention is to provide a mechanism that rotates the door open when it is released by said closing mechanism and it is half-opened.
  • a further object of the present invention is to provide a mechanism that brakes or in any case regulates opening and opening speed of the door when it is released by said closing mechanism.
  • Devices which are also called push-pull or push-push devices, that include a coupling element, in the shape of a hook, an arrow or a pin with enlarged head, fixed to and protruding from the inner surface of the door wing to be kept closed, and a push coupling mechanism to be fixed, for example, to the body of the piece of furniture or object closed by said wing.
  • the new kitchen oven with door equipped with at least one locking device and at least one device for rotating the door open and braking it.
  • the door of the new oven besides being without handle, is provided with one or more coupling elements, while the oven body is equipped with corresponding locking and release mechanisms.
  • the elements can be arranged the other way round, that is, the oven body can be provided with one or more coupling elements while the door can be provided with corresponding locking and release mechanisms.
  • Said coupling elements and said locking and release mechanisms may be preferably positioned on the side opposite the hinged side of the door and of the oven.
  • the coupling elements and the locking and release mechanisms may be constituted by the so-called push-pull ox push-push devices, where each one of the coupling elements is constituted by an element in the shape of a hook, an arrow or a pin with enlarged head, while the locking and release mechanisms are constituted by the corresponding push coupling mechanisms with elastic reaction.
  • the oven door is provided with a device for rotating it open and braking it, that is, a mechanism that, when the door isn't locked and is just half- open, allows the door to be rotated and opened completely with controlled force and speed. This mechanism, furthermore, dampens the downward movement of the door in the final opening phase, until the door is completely open.
  • Said locking and release mechanisms can be controlled via electric mechanisms operated with a remote control.
  • the opening of the door is obtained by simply pushing the same, so that the coupling elements, constituted by an element in the shape of a hook, an arrow or a pin with enlarged head, are released by the locking and release mechanisms, constituted by the corresponding push coupling mechanisms.
  • the initial half- opening of the door can be performed by the push-pull or push-push mechanisms themselves.
  • the door is closed by simply lifting it and pushing it until it is completely closed, a position in which the elements in the shape of a hook, an arrow or a pin with enlarged head are retained by the push coupling mechanisms of said push- pull or push-push mechanisms.
  • the new oven structured as described above makes it possible to eliminate all the costs related to the handle, like purchase, storage and assembly costs.
  • the new oven structured as described above has no projecting handle.
  • the new oven structured as described above makes it possible to open the door by exerting a simple pressure on it, in case of use of push-pull ox push- push mechanisms, or by operating the button present on the door surface or on the oven control control, or a remote control.
  • the device for rotating the door open and braking it performs the opening of the door automatically, with a smooth, slow, regular movement, ensuring slowing down or dampening of the door movement at the end of its downward stroke.
  • said device for rotating the door open and braking it can be an independent mechanism, and it can also be integrated in the structure of each door hinge.
  • Figure Ia shows a perspective view of the new oven with the bottom-hinged door (P) partially open.
  • the new oven comprises a mechanism for locking and releasing the door
  • (P) that in this example is constituted by push-pull mechanisms (Bl, B2).
  • Figures 2a and 2b show a cross section of the door (P) in two different positions: nearly closed and completely closed.
  • the mechanism shown in said Figures 2a and 2b is a purely indicative illustration of the type of mechanism employed.
  • Figure Ib shows a perspective view of the new oven with the bottom-hinged door (P) partially open, in which it is possible to see a further example of a locking and release mechanism.
  • the door is provided with two slots or compartments (G2) in its wall facing the oven, while the wall (F) of the oven facing the door (P) is provided with two mechanisms each comprising a rotatable hook (Gl).
  • Each hook (Gl) is kept in an extended and closed position, that is, inserted in the corresponding slot (G2) of the door (P), by an elastic element, typically a spring (not visible in the figure).
  • An electric mechanism and/or a mechanical lever system rotate and withdraw each hook (Gl) in such a way as to extract it from the slot (G2) of the door (P) and release the door (P) itself.
  • the invention includes a thrusting element (G3), operated mechanically, electromechanically or via a spring, such as to push the door (P) and open it partially.
  • FIG 3 shows a hinge (C) of the door (P) including the device for rotating the door open and braking it.
  • Said hinge (C) comprises a main body (Cl) suited to be fixed to the door (P), a coupling element (C2) for fixing to the oven structure, hinged to said main body (Cl), a translating rod (C3) positioned inside said main body (Cl).
  • said translating rod (C3) passes through a wall (CIa) present in the main body (Cl) and generically orthogonal to said translating rod (C3).
  • Two springs, a main spring (C5a) and an auxiliary spring (C5b) are inserted in said translating rod: the main spring (C5a) is interposed between said wall (CIa) of said main body (Cl) and generically the hinge point of said rod (C3); the auxiliary spring (C5b) is interposed between said wall (CIa) of said main body (Cl) and a retainer element (C3b) present on the free end of said translating rod (C3).
  • the main spring (C5a) is such as to be compressed during opening of the door (P), and in particular during the movement between a position in which it is partially open and the position in which it is completely open. Said main spring (C5a) exerts a thrusting force that is less than the weight of the door (P) in such a way as not to start closing the open door (P), but dampen the final section of the downward opening stroke of the door (P).
  • the auxiliary spring (C5b) is such as to intervene and push the door (P) open in its initial downward stroke, that is, from a position in which the door (P) is slightly open to a position in which the door (P) is generically open and its weight causes a further opening movement.
  • the new oven structured as described above makes it possible to eliminate all the costs related to the handle, like purchase, storage and assembly costs, besides offering clear aesthetic advantages.
  • the new oven structured as described above has no projecting handle.
  • the new oven structured as described above using push-pull or pull-pull mechanisms (Bl, B2), ensures that the door (P) can be opened by simply pressing it.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Abstract

The invention is a new kitchen oven with bottom-hinged door (P) without a handle, provided with a locking and releasing mechanism (B1, B2, G1, G2), e.g. a push-pull, a push-push or a touch-latch, located on the door (P) and on the body of the oven, and with at least one device for rotating the door (P) open and slow down its movement, suited to make the door (P) open when it is released and to dampen the movement of the door (P) during its total opening move. The locking and releasing mechanism (B1, B2, G1, G2) can be activated via controls located on the outer wall of the door (P) or on the oven's control panel or activated by electric mechanisms operated via a remote control.

Description

OVEN WITH BOTTOM-HINGED DOOR WITH NO HANDLE
DESCRIPTION
The present invention concerns the sector of kitchen appliances and in particular it concerns kitchen ovens.
Kitchen ovens are known, even in built-in versions, that are equipped with an oven-hinged door. Oven doors are usually equipped with a handle to allow the door to be opened and closed with no need for the hand to come into contact with the hot wall or glass panel of the oven door. At least one spring mechanism, usually integrated in the door hinge, keeps the oven door closed, so that the gasket of the door adheres thoroughly to the edge of the oven, thus preventing the heat from expanding out of the oven. Oven door hinges are widely used that are manufactured separately and installed on the oven door. Said hinges are constructed in such a way as to allow application and complete detachment of the door from the oven by simple insertion or withdrawal of their hook-shaped part into/from suitable seats created in or fixed to the oven body. The spring mechanism integrated in the hinges of oven doors is such as to make the door constantly adhere to the oven structure so that the gaskets present on the oven body or on the door prevent the hot air from expanding out of the oven's inner compartment. To open the oven door it is necessary to overcome the initial resistance of said spring mechanism and open the door beyond a given angle, so that the thrusting action of said spring mechanism is nullified by the shape of the mechanism itself. On the contrary, to close the oven door it is sufficient to start the closing manoeuvre and continue it until the spring mechanism performs its function again and closes or at least facilitates closing of the door. Ovens are known that adopt the so-called cold doors, that is, doors consisting of several coupled glass panes adhering to each other with or without air spaces, so that the external surface of the door has a temperature that is much lower than the inner temperature, usually almost corresponding to the temperature of the room where the oven is installed.
Doors with air space are also known, where an air flow is present between the glass panes, in such a way as to reduce heat transmission between the inner and outer surface of the door.
AU these kinds of door are equipped with various types of handles, having different sizes and arranged in different positions.
Oven door handles have production and storage costs and require labour for application and installation on the ovens during production, with consequent increases in assembly costs.
Oven door handles are often protruding elements that may hinder the passage of people or objects, like for example food trolleys, may cause clothes to become entangled with them and damage them, besides increasing overall dimensions for the purpose of storage.
In order to overcome all the drawbacks mentioned above, a new domestic oven has been designed and implemented that has a door with no handle, equipped with a locking and release device and a device for rotating the door open and braking it.
One of the objects of the invention is to construct a new kitchen oven that has no parts protruding from the door.
Another object of the new oven is to eliminate costs deriving from the production and assembly of the handle.
A further object of the new oven is to allow the user to open the door even with busy hands. A further object of the present invention is to provide a mechanism that keeps the door closed.
A further object of the present invention is to provide a mechanism that rotates the door open when it is released by said closing mechanism and it is half-opened.
A further object of the present invention is to provide a mechanism that brakes or in any case regulates opening and opening speed of the door when it is released by said closing mechanism.
Devices are known, which are also called push-pull or push-push devices, that include a coupling element, in the shape of a hook, an arrow or a pin with enlarged head, fixed to and protruding from the inner surface of the door wing to be kept closed, and a push coupling mechanism to be fixed, for example, to the body of the piece of furniture or object closed by said wing.
When the wing is open, a simple pressure exerted on the wing causes said coupling element to fit in the constraint element of the coupling mechanism, while successively pressing and releasing the wing itself opens the coupling mechanism, releases the coupling element of the wing and pushes the wing open.
These and other direct and complementary objects are achieved by the new kitchen oven with door equipped with at least one locking device and at least one device for rotating the door open and braking it.
The door of the new oven, besides being without handle, is provided with one or more coupling elements, while the oven body is equipped with corresponding locking and release mechanisms. Alternatively, the elements can be arranged the other way round, that is, the oven body can be provided with one or more coupling elements while the door can be provided with corresponding locking and release mechanisms. Said coupling elements and said locking and release mechanisms may be preferably positioned on the side opposite the hinged side of the door and of the oven.
The coupling elements and the locking and release mechanisms may be constituted by the so-called push-pull ox push-push devices, where each one of the coupling elements is constituted by an element in the shape of a hook, an arrow or a pin with enlarged head, while the locking and release mechanisms are constituted by the corresponding push coupling mechanisms with elastic reaction. The oven door is provided with a device for rotating it open and braking it, that is, a mechanism that, when the door isn't locked and is just half- open, allows the door to be rotated and opened completely with controlled force and speed. This mechanism, furthermore, dampens the downward movement of the door in the final opening phase, until the door is completely open.
To open the door of the new oven it is sufficient to activate the release mechanisms so that a simple spring thrusting element or another equivalent element included in the push-pull device causes the door to be displaced from its closed position to a half-closed position. At this point the device for rotating the door open and braking it, together with the force of gravity, opens the door completely with adequate speed and force, so that the door itself does not produce any impact when it reaches the end of stroke. To close the oven door it is sufficient to lift it and push it towards the position in which it is completely closed, where the coupling elements are retained by the locking and release mechanisms. Said locking and release mechanisms can be controlled via a button located on the door surface or by a button located on the oven's control panel; in this way accidental pushing of the door does not cause said opening mechanisms to be released.
Said locking and release mechanisms can be controlled via electric mechanisms operated with a remote control.
If push-pull or push-push mechanisms are used, the opening of the door is obtained by simply pushing the same, so that the coupling elements, constituted by an element in the shape of a hook, an arrow or a pin with enlarged head, are released by the locking and release mechanisms, constituted by the corresponding push coupling mechanisms.
In case of use of push-pull or push-push mechanisms, the initial half- opening of the door can be performed by the push-pull or push-push mechanisms themselves. Even in case of use of push-pull or push-push mechanisms, the door is closed by simply lifting it and pushing it until it is completely closed, a position in which the elements in the shape of a hook, an arrow or a pin with enlarged head are retained by the push coupling mechanisms of said push- pull or push-push mechanisms. The new oven structured as described above makes it possible to eliminate all the costs related to the handle, like purchase, storage and assembly costs.
The new oven structured as described above has no projecting handle. The new oven structured as described above, with locking mechanism controlled by a button located on the door or on the control panel, prevents any accidental opening of the door itself. The new oven structured as described above makes it possible to open the door by exerting a simple pressure on it, in case of use of push-pull ox push- push mechanisms, or by operating the button present on the door surface or on the oven control control, or a remote control.
The device for rotating the door open and braking it performs the opening of the door automatically, with a smooth, slow, regular movement, ensuring slowing down or dampening of the door movement at the end of its downward stroke.
According to the invention, said device for rotating the door open and braking it can be an independent mechanism, and it can also be integrated in the structure of each door hinge.
The characteristics of the new kitchen oven with bottom-hinged door with no handle, equipped with a locking and release device and a device for rotating the door open and braking it, will be highlighted in greater detail in the following description with reference to the attached drawings, enclosed as non-limiting examples.
The attached drawings show, as a non-limiting example, a practical embodiment of the invention.
Figure Ia shows a perspective view of the new oven with the bottom-hinged door (P) partially open.
The new oven comprises a mechanism for locking and releasing the door
(P) that in this example is constituted by push-pull mechanisms (Bl, B2). On one side of the door (P) there are two coupling elements (Bl) with arrow-shaped head or end. Said coupling elements (Bl) are arranged in a position that is generically orthogonal to the inner surface of the door (P).
On the edge (F) of the oven where the door (P) rests, in positions corresponding to said coupling elements (Bl) of the door (P), there are the corresponding locking and release mechanisms (B2).
Figures 2a and 2b show a cross section of the door (P) in two different positions: nearly closed and completely closed. The mechanism shown in said Figures 2a and 2b is a purely indicative illustration of the type of mechanism employed.
Figure Ib shows a perspective view of the new oven with the bottom-hinged door (P) partially open, in which it is possible to see a further example of a locking and release mechanism.
In this example the door is provided with two slots or compartments (G2) in its wall facing the oven, while the wall (F) of the oven facing the door (P) is provided with two mechanisms each comprising a rotatable hook (Gl).
Each hook (Gl) is kept in an extended and closed position, that is, inserted in the corresponding slot (G2) of the door (P), by an elastic element, typically a spring (not visible in the figure).
An electric mechanism and/or a mechanical lever system rotate and withdraw each hook (Gl) in such a way as to extract it from the slot (G2) of the door (P) and release the door (P) itself. The invention includes a thrusting element (G3), operated mechanically, electromechanically or via a spring, such as to push the door (P) and open it partially.
Figure 3 shows a hinge (C) of the door (P) including the device for rotating the door open and braking it. Said hinge (C) comprises a main body (Cl) suited to be fixed to the door (P), a coupling element (C2) for fixing to the oven structure, hinged to said main body (Cl), a translating rod (C3) positioned inside said main body (Cl).
In particular, said translating rod (C3) passes through a wall (CIa) present in the main body (Cl) and generically orthogonal to said translating rod (C3). Two springs, a main spring (C5a) and an auxiliary spring (C5b) are inserted in said translating rod: the main spring (C5a) is interposed between said wall (CIa) of said main body (Cl) and generically the hinge point of said rod (C3); the auxiliary spring (C5b) is interposed between said wall (CIa) of said main body (Cl) and a retainer element (C3b) present on the free end of said translating rod (C3).
The main spring (C5a) is such as to be compressed during opening of the door (P), and in particular during the movement between a position in which it is partially open and the position in which it is completely open. Said main spring (C5a) exerts a thrusting force that is less than the weight of the door (P) in such a way as not to start closing the open door (P), but dampen the final section of the downward opening stroke of the door (P). The auxiliary spring (C5b) is such as to intervene and push the door (P) open in its initial downward stroke, that is, from a position in which the door (P) is slightly open to a position in which the door (P) is generically open and its weight causes a further opening movement. In this generically open position the door (P) is only slightly subjected to the action of the auxiliary spring (C5b) but its weight is sufficient to win the initial compression resistance of the main spring (C5a). The new oven structured as described above makes it possible to eliminate all the costs related to the handle, like purchase, storage and assembly costs, besides offering clear aesthetic advantages. The new oven structured as described above has no projecting handle.
The new oven structured as described above, using push-pull or pull-pull mechanisms (Bl, B2), ensures that the door (P) can be opened by simply pressing it. The new oven structured as described above, with locking and release mechanism (Gl, G2) controlled by a button located on the door (P) or on the control panel, or by a remote control, prevents any accidental opening of the door (P) itself.

Claims

1. Kitchen oven with bottom-hinged door (P), characterized in that it comprises:
- at least one door (P) with no handle; - at least one device (Bl5 B2, Gl, G2) for locking and releasing the door (P), suited to retain the door (P) in closed position, wherein the locking of the door (P) in closed position is obtained by simply pushing the door (P) at the end of its closing stroke, so that the coupling elements are retained by the locking and releasing mechanisms;
- at least one mechanical and/or electromechanical mechanism (G3), suited to open the door (P) slightly, starting from its closed position, when it is released by the locking and releasing device (B1, B2, G1, G2); - at least one device for rotating the door (P) open and braking it, said device comprising one or more springs (C5b) suited to activate at least the initial opening movement of the door (P) and at least one second spring (C5a) suited to dampen the movement of the door (P) itself when it opens completely.
2. Oven according to claim 1, characterized in that said mechanism
(G3) suited to half-open the door (P) starting from its closed position is an elastic spring thrusting element (G3) or another equivalent element suited to move the door (P) from the position in which it is completely closed to a position in which it is at least half-opened.
3. Oven according to claims 1, 2, characterized in that said devices (Bl, B2, Gl5 G2) for locking and releasing the door (P) are activated via controls located on the outer wall of the door (P) or on the oven's control panel.
4. Oven according to claims 1, 2, characterized in that said devices (Bl, B2, Gl, G2) for locking and releasing the door (P) are activated via electric mechanisms operated by means of a remote control.
5. Oven according to claim 1, characterized in that said devices (Bl, B2) for locking and releasing the door (P) are constituted by simple push-pull or push-push mechanisms, located on said door (P) and on the body (F) of the oven itself, and wherein simple pressure of the door (P) locks and releases said locking and releasing mechanism (Bl, B2), and comprising elastic elements suited to move the door (P) from the position in which it is closed to a position in which it is at least half-open.
6. Oven according to claim 1, characterized in that said device for rotating the door (P) open and braking it is suited to dampen the downward opening stroke of the door (P) and is integrated in the hinge (C) that allows the door (P) to rotate in relation to the oven.
7. Oven according to the previous claims, characterized in that said hinge (C) including the device for rotating the door (P) open and braking it comprises a main body (Cl) suited to be fixed to the door (P), a coupling element (C2) for fixing to the structure of the oven, hinged to said main body (Cl), a translating rod (C3) located inside said main body (Cl) and passing through a wall (CIa) present in the main body (Cl) and generically orthogonal to said translating rod (C3), and wherein two springs (C5a, C5b) are inserted in said translating rod (C3), of which one is a main spring (C5a) interposed between said wall (CIa) of said main body (Cl) and generically the hinge point of said rod (C3), and the other is an auxiliary spring (C5b) interposed between said wall (CIa) of said main body (Cl) and a retainer element (C3b) present on the free end of said translating rod (C3), and wherein the main spring (C5a) is such as to be compressed during opening of the door (P), and in particular in the section included between a position in which it is slightly opened to the position in which it is completely open, and wherein the auxiliary spring (C5b) is such as to intervene and push the door (P) open at the beginning of its opening stroke, that is, from a position in which the door (P) is slightly open to a position in which the door (P) is generically open and its weight causes it to open even more.
8. Oven according to the previous claims, characterized in that the device for rotating the door (P) open and braking it, included in said hinge (C), behaves differently depending on the position of the door (P):
- when the door (P) is released for opening and half-opened, by the push-pull mechanism or by the spring thrusting element (G3) or other equivalent element, the device for rotating the door (P) open pushes the door (P) in the opening direction, and wherein the weight of the door (P) is sufficient to allow the door (P) to continue its opening movement;
- when the door (P) is in proximity to its completely open position, said device for rotating the door (P) open and braking it (P) dampens the opening stroke of the door (P) itself.
PCT/IT2008/000177 2008-03-18 2008-03-18 Oven with bottom-hinged door with no handle WO2009116094A1 (en)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2008/000177 WO2009116094A1 (en) 2008-03-18 2008-03-18 Oven with bottom-hinged door with no handle

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WO2009116094A1 true WO2009116094A1 (en) 2009-09-24

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WO2011128817A1 (en) * 2010-04-12 2011-10-20 Indesit Company S.P.A. Door for a household cooking appliance, in particular an oven
CN102709216A (en) * 2012-06-05 2012-10-03 无锡市瑞达电子有限公司 Vacuum drying oven for processing HMDS (Hexamethyl Disilazane)
ITPR20120085A1 (en) * 2012-12-20 2014-06-21 Indesit Co Spa OVEN FOR COOKING PIETANCES.
EP2840208A1 (en) 2013-08-19 2015-02-25 Electrolux Appliances Aktiebolag A locking device and a domestic appliance
EP2933567A3 (en) * 2014-04-08 2015-11-04 Indesit Company S.p.A. Household cooking appliance
FR3027096A1 (en) * 2014-10-13 2016-04-15 Saint-Gobain Placo LUMINOUS PANEL
EP3365517A4 (en) * 2016-04-15 2018-11-21 Samsung Electronics Co., Ltd. Household electric appliances having door key linked to rotation of door
CN110424830A (en) * 2019-08-09 2019-11-08 安徽冠东科技有限公司 A kind of shift fork rotary door device
EP2866636B1 (en) 2012-06-29 2022-01-26 BSH Hausgeräte GmbH Domestic appliance with locking device and door counterbalance system

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WO2011128817A1 (en) * 2010-04-12 2011-10-20 Indesit Company S.P.A. Door for a household cooking appliance, in particular an oven
CN102709216A (en) * 2012-06-05 2012-10-03 无锡市瑞达电子有限公司 Vacuum drying oven for processing HMDS (Hexamethyl Disilazane)
EP2866636B1 (en) 2012-06-29 2022-01-26 BSH Hausgeräte GmbH Domestic appliance with locking device and door counterbalance system
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ITPR20120085A1 (en) * 2012-12-20 2014-06-21 Indesit Co Spa OVEN FOR COOKING PIETANCES.
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EP2840208A1 (en) 2013-08-19 2015-02-25 Electrolux Appliances Aktiebolag A locking device and a domestic appliance
EP2933567A3 (en) * 2014-04-08 2015-11-04 Indesit Company S.p.A. Household cooking appliance
FR3027096A1 (en) * 2014-10-13 2016-04-15 Saint-Gobain Placo LUMINOUS PANEL
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EP3365517A4 (en) * 2016-04-15 2018-11-21 Samsung Electronics Co., Ltd. Household electric appliances having door key linked to rotation of door
US10352073B2 (en) 2016-04-15 2019-07-16 Samsung Electronics Co., Ltd. Household electric appliances having door key linked to rotation of door
CN110424830A (en) * 2019-08-09 2019-11-08 安徽冠东科技有限公司 A kind of shift fork rotary door device

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