EP2636956B1

EP2636956B1 - An oven door for a cooking oven and a method for preparing an oven door for a cooking oven

Info

Publication number: EP2636956B1
Application number: EP12158271.2A
Authority: EP
Inventors: Francesco Lampitelli; Cris Tridello
Original assignee: Electrolux Home Products Corp NV
Current assignee: Electrolux Home Products Corp NV
Priority date: 2012-03-06
Filing date: 2012-03-06
Publication date: 2017-12-13
Anticipated expiration: 2032-03-06
Also published as: EP2636956A1

Description

The present invention relates to an oven door for a cooking oven according to the preamble of claim 1. In particular, the present invention relates to a swing oven door for a cooking oven. Further, the present invention relates to a method for preparing an oven door for a cooking oven according to the preamble of claim 8. Moreover, the present invention relates to a cooking oven.
An oven door, in particular a swing oven door is attached at a cooking oven by one or more hinges. In a closed state of the swing oven door the hinges are visible or not visible. Usually, the hinges are made of metal and fastened at the door structure by screws, rivets or similar fixing elements. The assembling of the hinges at the door structure takes a lot of time. Further, corrosion problems may occur at the metal hinges. Moreover, it is expensive to adapt the colour of the hinges to the design of the oven door and the cooking oven.
WO 2010/132057 A1 discloses an oven door pivotable around a horizontal axis. The oven door includes a glass panel, on which fittings are glued. Said fitting are provided for being connected to a hinge portion of a hinge for the oven door. However, the connection between the oven door and the oven is relative complex.
DE 10 2010 003 897 A1 discloses a hinge for a door of a domestic appliance. The hinge includes an elongated hinge element extending perpendicular to a pivoting axis of said hinge. The hinge includes a hinge bracket pivoting supported at the elongated hinge element. The elongated hinge element is glued at a panel of the door. The hinge bracket is received by a chassis. The elongated hinge element comprises a spring element and a damping element.
US 4,146,769 discloses a microwave oven including a rigid door panel having a frame and hinge effectively bonded to the door panel. The frame is supported by the door panel. The frame and hinge are effectively bonded to the door panel through attachment to an intermediate structural member which is in turn bonded to the door panel. A bracket of the hinge is bonded directly to the door panel by adhesive.
GB 2 310 876 A discloses a method of fixing a bracket to a panel, in particular to a glass of an oven door. The bracket is channel shaped and has side limbs and a base and is provided for securing the panel of the oven door. A layer of double sided adhesive tape is used as a temporary fixing. An adhesive is injected through openings in the bracket, wherein the adhesive tape allows assembly to continue while the adhesive is curing. The adhesive may be curable silicon adhesive.
US 5,901,637 discloses a cooking oven with a swing oven door. The swing oven door includes a door panel. A hinge strap is bonded to the door panel along a vertical edge and includes hinge elements that register with hinge elements attached at a side wall of an oven chamber. The hinge elements of the hinge strap and the oven chamber are pinned with each other.
It is an object of the present invention to provide an oven door for a cooking oven and a method for preparing an oven door for a cooking oven, wherein said oven door is assembled by low complexity.
The object of the present invention is achieved by the oven door for a cooking oven according to claim 1.
According to the present invention the at least one first hinge portion is a central hinge element, wherein the two second hinge portions are arranged at the ends of the central hinge element and form an upper hinge element and a lower hinge element, and wherein the hinge comprises a mechanical stop for limiting an aperture angle between the oven door and the cooking oven, and wherein said mechanical stop is formed between the upper hinge element and the central hinge element and between the lower hinge element and the central hinge element, respectively, and wherein said mechanical stop is formed as an appendix in the cross-section of the central hinge element. The at least one counter hinge portion is connectable to the cooking oven by another arbitrary method. Since the hinge portion is directly glued at the door panel, no additional parts are required. The hinge portion can be glued to the door panel by an automatic system and/or an automatic procedure. The properties of the door panel and the hinge portions are independent of each other. The door panel and the central hinge portion are interchangeable. Thus, an arbitrary number of different oven doors may be assembled by the same automatic system and/or procedure.
In particular, the at least one second hinge portion may be detachably or permanently fixable or fixed at the cooking oven.
For example, the at least one second hinge portion is fixable or fixed at a side wall frame of the cooking oven by screws and/or rivets.
Preferably, the at least one first hinge portion is glued at the door panel by a silicon glue.
According to an alternative embodiment of the present invention the at least one first hinge portion is glued at a door frame supporting one or more door panels.
Further, at least one of the first hinge portion and the second hinge portion may be made of plastics. This prevents or restricts corrosion problems.
Preferably, the hinge is arranged behind the oven door or the door panel of said oven door, when the oven door is in a closed state. This arrangement is advantageous for the design of the cooking oven.
According to the present invention the hinge comprises a mechanical stop for limiting an aperture angle between the oven door and the cooking oven.
In particular, a pivoting axis of the hinge extends along a vertical direction.
Moreover, at least one of the first hinge portion and the second hinge portion may be made of metal.
The object of the present invention is further achieved by the method for preparing an oven door for a cooking oven according to claim 8.
According to the present invention the at least one first hinge portion is glued at the door panel.
The hinge portion is directly glued at the door panel, so that no additional parts are required. The hinge portion can be glued to the door panel by an automatic system and/or an automatic procedure. Thus, an arbitrary number of different oven doors may be assembled by the same automatic system and/or procedure.
Preferably, the gluing of the at least one first hinge portion at the door panel is performed by an automatic procedure. This reduces the production time.
In a similar way, further structural elements of the oven door are glued at the door panel by the same automatic procedure.
In particular, the method is provided for preparing the oven door mentioned above.
At last, the present invention relates to a cooking oven including at least one oven door, in particular at least one swing oven door mentioned above.
In particular the oven is a built-in type oven, i.e. an oven structured and dimensioned so as to be mounted into a cavity of a furniture article.
The novel and inventive features believed to be the characteristic of the present invention are set forth in the appended claims.
The invention will be described in further detail with reference to the drawings, in which

FIG 1: illustrates a front view of an oven door at a cooking oven according to a preferred embodiment of the present invention,
FIG 2: illustrates a perspective rear view of the oven door for the cooking oven according to the preferred embodiment of the present invention,
FIG 3: illustrates a perspective front view of the oven door for the cooking oven according to the preferred embodiment of the present invention,
FIG 4: illustrates a rear view of the oven door for the cooking oven according to the preferred embodiment of the present invention,
FIG 5: illustrates a perspective view of the cooking oven with the oven door in an open state according to the preferred embodiment of the present invention,
FIG 6: illustrates a detailed perspective view of a hinge at the oven door of the cooking oven according to the preferred embodiment of the present invention,
FIG 7: illustrates a schematic top view of the hinge for the oven door in a closed state according to the preferred embodiment of the present invention,
FIG 8: illustrates a schematic top view of the hinge for the oven door in an open state according to the preferred embodiment of the present invention,
FIG 9: illustrates an exploded perspective rear view of the oven door for the cooking oven according to the preferred embodiment of the present invention, and
FIG 10: illustrates an exploded perspective front view of the oven door for the cooking oven according to the preferred embodiment of the present invention.

FIG 1 illustrates a front view of an oven door 10 at a cooking oven 12 according to a preferred embodiment of the present invention. The oven door 10 is in a closed state and arranged at a front side of the cooking oven 12. Further, an upper front panel 14 is also arranged at the front side of the cooking oven 12. The upper front panel 14 is arranged above the oven door 10.
The oven door 10 is a swing oven door pivotable around a vertical axis. In this example, said vertical axis is on the left hand side of the oven door. The oven door 10 comprises a corresponding vertical hinge 20 at the left hand side. The hinge 20 is arranged at the rear side of the oven door 10, such that, when the oven door is mounted on a built-in type oven, and the oven is, in turn, mounted into a cavity of a furniture article, said hinge 20 is not visible in the closed state of said oven door 10.
The oven door 10 comprises a window 16. The window 16 is arranged in the central portion of the oven door 10. Further, the oven door 10 comprises two screw holes 18 provided for fixing a door handle. The screw holes 18 are arranged on the right hand side of the oven door 10.
FIG 2 illustrates a perspective rear view of the oven door 10 for the cooking oven 12 according to the preferred embodiment of the present invention. The oven door 10 includes a door panel 32 and the hinge 20. FIG 2 clarifies the arrangement of the hinge 20 at the door panel 32 of the oven door 10.
The hinge 20 includes an upper hinge element 22, a lower hinge element 24 and a central hinge element 26. The central hinge element 26 is elongated along the vertical direction. The central hinge element 26 is connected to the door panel 32 of the oven door 10 by an adhesive. In this example, the central hinge element 26 is fixed at the door panel 32 by silicon glue 34. The upper hinge element 22 and the lower hinge element 24 are pivotable at the central hinge element 26 in each case. Thus, the upper hinge element 22 and the lower hinge element 24 are pivotable at the oven door 10.
The upper hinge element 22 and the lower hinge element 24 are connectable to a chassis of the cooking oven 12. In particular, the upper hinge element 22 and the lower hinge element 24 are provided for fastening the oven door 10 at a front frame of the cooking oven 12. For example, the upper hinge element 22 and the lower hinge element 24 are connectable to a chassis of the cooking oven 12 by screws.
FIG 3 illustrates a perspective front view of the oven door 10 for the cooking oven 12 according to the preferred embodiment of the present invention. FIG 3 clarifies the arrangement of the upper hinge element 22, the lower hinge element 24 and the central hinge element 26 on the left hand side of the oven door 10.
The central hinge element 26 extends over the nearly complete height of the door panel 32 of the oven door 10. The upper hinge element 22 is pivotable at the upper end of the central hinge element 26. In a similar way, the lower hinge element 24 is pivotable at the lower end of the central hinge element 26.
FIG 4 illustrates a rear view of the oven door 10 for the cooking oven 12 according to the preferred embodiment of the present invention. In FIG 4 further structural elements 28 and 30 at the inner side of the oven door 10 are shown.
Two vertical frame parts 28 and a horizontal frame part 30 are arranged at the inner side of the door panel 32 of the oven door 10. The vertical frame parts 28 are arranged at the left hand side and right hand side, respectively, beside the window 16 of the oven door 10. The horizontal frame part 30 is arranged above the window 16 of the oven door 10. The vertical frame parts 28 and the horizontal frame part 30 enclose the window 16 from three sides. The vertical frame part 28 on the left hand side from the outside of the oven door 10 is arranged between the hinge 20 and the window 16.
FIG 5 illustrates a perspective view of the cooking oven 12 with the oven door 10 in an open state according to the preferred embodiment of the present invention. The upper hinge element 22 and the lower hinge element 24 of the hinge 20 are fixed at a left hand side of the front frame of the cooking oven 12.
FIG 6 illustrates a detailed perspective view of the hinge 20 at the oven door 10 of the cooking oven 12 according to the preferred embodiment of the present invention. FIG 6 clarifies that upper hinge element 22 and the lower hinge element 24 of the hinge 20 are fixed at an outer side of the front frame of the cooking oven 12. When the oven door is mounted on a built-in type oven, and the oven is, in turn, mounted into a cavity of a furniture article, the hinge 20 is only visible, when the oven door 10 is open.
FIG 7 illustrates a schematic top view of the hinge 20 for the oven door 10 in a closed state according to the preferred embodiment of the present invention. In the closed state of the oven door 10 the plane of the door panel 32 extends in parallel to the front side of the cooking oven 12. A central portion of the upper hinge element 22 and the central hinge element 26 form an angle of 90 degrees in the closed state of the oven door 10. The lower hinge element 24 is arranged below the upper hinge element 22 and therefore not visible in FIG 7.
FIG 8 illustrates a schematic top view of the hinge 20 for the oven door 10 in an open state according to the preferred embodiment of the present invention. The shown open state of the hinge 20 corresponds with an aperture angle of 110 degrees between the plane of the door panel 32 of the oven door 10 and the front side of the cooking oven 12. The central portion of the upper hinge element 22 and the central hinge element 26 form an angle of about 110 degrees in the open state of the oven door 10. The lower hinge element 24 is arranged below the upper hinge element 22 and therefore not visible in FIG 8.
Further, a mechanical stop 36 is formed between the upper hinge element 22 and the central hinge element 26 and between the lower hinge element 24 and the central hinge element 26, respectively, so that the opening angle of the oven door 10 is limited to a predetermined angle. In this example, the mechanical stop 36 effects the maximum aperture angle of 110 degrees between the plane of the door panel 32 of the oven door 10 and the front side of the cooking oven 12.
FIG 9 illustrates an exploded perspective rear view of the oven door 10 for the cooking oven 12 according to the preferred embodiment of the present invention. FIG 9 shows the door panel 32 and the central hinge portion 26, before said central hinge portion 26 is glued to the door panel 10.
The silicon glue 34 is applied on three places at the inner side of the door panel 32. Said three places are arranged one upon the other and provided for the central hinge portion 26. Thus, the central hinge portion 26 is directly attached at the door panel 32 of the oven door 10. There are no further fastening elements between the central hinge portion 26 and the door panel 32 of the oven door 10.
FIG 10 illustrates an exploded perspective front view of the oven door 10 for the cooking oven 12 according to the preferred embodiment of the present invention. FIG 10 shows the door panel 32, the central hinge portion 26 and the silicon glue 34 between said door panel 32 and central hinge portion 26, before the silicon glue is applied to the inner side of the door panel 10.
The central hinge portion 26 of the hinge 20 can be glued to the door panel 32 of the oven door 10 by an automatic system and/or an automatic procedure. The same automatic system and/or automatic procedure, respectively, can be used to glue other structural parts of the oven door 10 to the door panel 32. In particular, the vertical frame parts 28 and the horizontal frame part 30 are also glued to the inner side of the door panel 32 of the oven door 10.
The properties of the door panel 32, the central hinge portion 26 and the other structural parts of the oven door 10 are independent of each other. The door panel 32, the central hinge portion 26, the vertical frame parts 28 and/or the horizontal frame part 30 are interchangeable. Thus, an arbitrary number of different oven doors 10 may be assembled by the same automatic system and/or procedure.
The hinge 20 may be made of metal and/or a polymer material resistant to high temperatures. The upper hinge element 22, the lower hinge element 24 and/or the central hinge element 26 may be made of different materials. The material of the hinge 20 can be adapted to the material of the door panel 32, the vertical frame parts 28 and/or the horizontal frame part 30 in order to obtain a preferred design. The door panel may be made of glass.

List of reference numerals

10: oven door
12: cooking oven
14: upper front panel
16: window
18: screw hole
20: hinge
22: upper hinge element
24: lower hinge element
26: central hinge element
28: vertical frame part
30: horizontal frame part
32: door panel
34: silicon glue
36: mechanical stop

Claims

A swing oven door (10), in particular for a cooking oven (12), wherein
- the oven door (10) comprises a door panel (32),

- the oven door (10) comprises a hinge (20),

- the hinge (20) includes at least one first hinge portion (26) fixed at the door panel (32) of the cooking oven (12),

- the hinge (20) includes at least two second hinge portions (22, 24) fixable or fixed at the cooking oven (12),

- the at least one first hinge portion (26) and the at least two second hinge portions (22, 24) are pivoting to each other around a predetermined axis,

- the at least one first hinge portion (26) is glued at the door panel (32),

- the at least one first hinge portion (26) is elongated along a pivoting axis,

- said pivoting axis of the hinge (20) extends along a vertical direction, characterized in, that
the at least one first hinge portion (26) is a central hinge element (26), wherein the two second hinge portions (22, 24) are arranged at the ends of the central hinge element (26) and form an upper hinge element (22) and a lower hinge element (24), and wherein the hinge (20) comprises a mechanical stop (36) for limiting an aperture angle between the oven door (10) and the cooking oven (12), and wherein said mechanical stop (36) is formed between the upper hinge element (22) and the central hinge element (26) and between the lower hinge element (24) and the central hinge element (26), respectively, and wherein said mechanical stop (36) is formed as an appendix in the cross-section of the central hinge element (26).
The oven door according to claim 1,
characterized in, that
the at least one second hinge portion (22, 24) is detachably or permanently fixable or fixed at the cooking oven (12).
The oven door according to claim 1 or 2, characterized in, that
the at least one second hinge portion (22, 24) is fixable or fixed at a side wall frame of the cooking oven by screws and/or rivets.
The oven door according to any one of the preceding claims,
characterized in, that
the at least one first hinge portion (26) is glued at the door panel (32) by a silicon glue.
The oven door according to any one of the preceding claims,
characterized in, that
at least one of the first hinge portion (26) and the second hinge portion (22, 24) is made of plastics.
The oven door according to any one of the preceding claims,
characterized in, that
the hinge (20) is arranged behind the oven door (10) or the door panel (32) of said oven door (10), when the oven door (10) is in a closed state.
The oven door according to any one of the preceding claims,
characterized in, that
at least one of the first hinge portion (26) and the second hinge portion (22, 24) is made of metal.
A method for preparing an oven door (10), in particular a swing oven door (10) for a cooking oven (12), wherein the method comprises the steps of:
- providing a door panel (32),

- providing a hinge (20) including at least one first hinge portion (26) for the door panel (32) and at least one second hinge portion (22, 24) fixable at the cooking oven (12), wherein the first hinge portion (26) and the second hinge portion (22, 24) are pivoting to each other around a predetermined axis, and

- fastening the at least one first hinge portion (26) at the door panel (32), wherein

- the at least one first hinge portion (26) is glued at the door panel (32),
characterized in, that
the method is provided for an oven door (10) according to any one of the claims 1 to 7.
The method according to claim 8,
characterized in, that
the gluing of the at least one first hinge portion (26) at the door panel (32) is performed by an automatic procedure.
The method according to claim 9,
characterized in, that
further structural elements (28, 30) of the oven door (10) are glued at the door panel (32) by the same automatic procedure.
A cooking oven (12) including at least one swing oven door (10),
characterized in, that
the cooking oven (12) includes at least one oven door (10) according to any one of the claims 1 to 7.