Patent Grant
10520201
The present invention relates to a glass package for an oven door of a cooking oven. Further, the present invention relates to a framework for an oven door of a cooking oven. Moreover, the present invention relates to an oven door for a cooking oven. Additionally, the present invention relates to a method for assembling an oven door for a cooking oven.
The oven cavity of a cooking oven is usually closable by an oven door pivotally mounted at a chassis or front frame of said cooking oven. A conventional oven door includes an outer or a front panel having an outer or front surface, respectively. A central opening is arranged in an outer transparent panel. In addition to the outer transparent pane, the door can be provided with additional inner glass panes, gaskets, glass holders, silicon parts, door hinges, brackets for a door handle fixation and insulation panes. Thus, the door of the cooking oven includes usually a number of different components which have to be assembled together into a mechanical structure of the oven door.
The complexity of the oven door is very high and it takes a time to assembly such an oven door in assembly line, and an automatic door assembly is not possible as well. Furthermore, the oven door and its components should be cleaned by the user from time to time. However, it is difficult for the user to disassembly the oven door, clean each component and afterward to assembly all of these components together again and at the correct positions. Furthermore, if the mechanical structure of the oven door is realized by a number of different components, then the assembling and disassembling of the glass panes is very difficult, so that additional tools and/or components are required.
Additionally, the inner glass pane is always fixed with the mechanical structure of the oven door by means of a cover element overlapping with said inner glass pane or by means of two additional holding elements overlapping with the inner glass pane and connecting said inner glass pane to the mechanical structure of the oven door. Thus, all these cover elements and holding elements are visible from outside, are difficult to clean and could be damaged due to higher temperature coming out from the oven cavity.
It is an object of the present invention to provide a glass package and a corresponding framework for an oven door, which overcomes one or more of the drawbacks mentioned above.
The present invention provides a glass package for an oven door of a cooking oven, wherein
The core of the present invention is that the biggest width and/or height of the glass package are/is defined by the inner glass pane on the one hand and the permanent connection between the glass panes of the glass package on the other hand. Thus, the at least one slot and/or channel are/is arranged in the circumferential environment of the at least one further glass pane, since the inner glass pane is the widest and/or highest component of the glass pane. When the glass package is inserted in a receiving part, then an outer portion of the outer side of the inner glass pane is aligned at said receiving part, while the slot, the channel and/or an edge of the further glass pane interacts with fastening means of the receiving part.
In particular, the at least one slot and/or channel are/is arranged at two or more opposite circumferential sides of the glass package.
For example, the connecting means include at least one elongated gasket enclosing at least partially an inner intermediate space between two adjacent glass panes, wherein the at least one slot encloses an outer circumferential side of said gasket and extends along the circumferential direction of the glass package.
In this case, the gasket may include at least one gluing strip or is formed as a gluing strip.
According to another example, the connecting means include at least one spacer enclosing at least partially the inner intermediate space between two adjacent glass panes, wherein the at least one slot encloses an outer circumferential side of said spacer and extends along the circumferential direction of the glass package.
Preferably, the at least one spacer is glued at the glass panes. For example, the spacer may be fastened at the glass panes by a gluing strip.
Additionally, the spacer may include at least one channel extending at least partially along an outer circumferential side of said spacer along a circumferential direction of the glass package. In this case the channel extends the cross-section of the slot.
According to a further embodiment, the connecting means include at least one frame enclosing at least partially the at least one further glass pane, wherein the at least one channel is formed at an outer circumferential side of said frame and extends along the circumferential direction of the glass package.
In particular, the spacer or the frame is made of at least one plastic material and/or at least one metal material. For example, the spacer or the frame is formed as an extrusion profile, a moulded profile or metal formed profile.
The present invention relates further to a framework for an oven door of a cooking oven, wherein
The framework is adapted for receiving a glass package. In particular, the door frame of said framework is provided for receiving the glass package mentioned above.
Preferably, the fastening means include at least one lug element, wherein said lug element and an edge of one of the at least one further glass pane are provided to form a snap-in mechanism, and/or wherein said lug element and the at least one slot and/or channel of the glass package are provided to form a snap-in mechanism.
Alternatively or additionally, the fastening means include at least one frame channel, wherein said frame channel is provided to enclose circumferentially one of the at least one further glass pane.
Moreover, the present invention relates to an oven door for a cooking oven, wherein the oven door comprises a glass package and a framework mentioned above, wherein a door frame of the framework is provided for receiving the glass package.
In particular, the width and height of the inner glass pane are at least as big as the width and height, respectively, of the door frame of the framework.
Additionally, the present invention relates to a method for assembling an oven door for a cooking oven mentioned above, said method comprises the following steps:
The inventive method allows an easy assembling of the oven door. The glass package and the framework are removably connected to each other, so that the user can easily remove the glass package from the framework.
Novel and inventive features of the present invention are set forth in the appended claims.
The present invention will be described in further detail with reference to the drawing, in which
The glass package 10 includes an inner glass pane 12, an intermediate glass pane 14 and an outer glass pane 16. In an assembled state of the glass package 10 at the oven door and in a closed state of said oven door, the inner glass pane 12 is arranged closer to an oven cavity than the intermediate glass pane 14 and again the intermediate glass pane 14 is arranged closer to the oven cavity than the outer glass pane 16. The inner glass pane 12 is marginally bigger than the intermediate glass pane 14. In turn, the intermediate glass pane 14 is marginally bigger than the outer glass pane 16.
In this example, the thicknesses of the outer glass pane 12, the intermediate glass pane 14 and the inner glass pane 16 are substantially equal. Further, the distance between the inner glass pane 12 and the intermediate glass pane 14 is bigger than the distance between the intermediate glass pane 14 and the outer glass pane 16 in the embodiment of
The adjacent glass panes 12, 14 and 16 are fixed together by gaskets 18. The inner glass pane 12 and intermediate glass pane 14 are fixed together by at least one gasket 18. In a similar way, the intermediate glass pane 14 and the outer glass pane 16 are fixed together by at least one further gasket 18. The gaskets 18 extend along an outer portion of the intermediate space between the adjacent glass panes 12, 14 and 16. The gaskets 18 enclose an inner intermediate space between the adjacent glass panes 12, 14 and 16. Further, the gaskets 18 are spaced apart from the edges of the glass panes 12, 14 and 16. The distances between the gaskets 18 and the adjacent edges of the glass panes 12, 14 and 16 are about the same as the distances between the adjacent glass panes 12, 14 and 16. For example, the gasket 18 may be a glue silicone strip.
For example, the inner intermediate space enclosed by at least one gasket 18 is hermetic closed, so that no air flow occurs in said inner intermediate space. Alternatively, the inner intermediate space may be formed as an open space. The hermetic closed inner intermediate space between two adjacent glass panes 12, 14 and 16, in particular between the inner glass pane 12 and intermediate glass pane 14, is advantageous in view of energy consumption. In contrast, the open inner intermediate space between the adjacent glass panes 12, 14 and 16, in particular between the intermediate glass pane 14 and outer glass pane 16, allows a lower temperature at a front side of the oven door. Further, the hermetic closed inner intermediate space may be vacuum-sealed or filled with inert gas.
The glass package 10 is circumferentially enclosed by two slots 19. The slots 19 are formed in an outer intermediate space between two adjacent glass panes 12, 14 and 16. Since the gaskets 18 are spaced apart from the edges of the glass panes 12, 14 and 16, the slots 19 are formed by the outer portions of two opposite surfaces of the adjacent glass panes 12, 14 and 16 and by the outer circumferential sides of the gaskets 18. The side walls of each slot 19 are formed by the outer portions of two opposite surfaces of the adjacent glass panes 12, 14 and 16. The bottom wall of each slot 19 is formed by the outer circumferential side of the gasket 18. In other words, the intermediate space between two adjacent glass panes 12, 14 and 16 is separated into the inner and outer intermediate space by the at least one gasket 18, wherein the at least one gasket 18 encloses at least partially the inner intermediate space, while the outer intermediate space forms the slot 19.
Instead of the gaskets 18 of the first embodiment, the glass package 10 according to the second embodiment includes spacers 20 between the adjacent glass panes 12, 14 and 16. The spacers 20 allow also a hermetic closed inner intermediate space as well as an open inner intermediate space between two of the adjacent panes 12, 14 and 16. The hermetic closed inner intermediate space may be vacuum-sealed or filled with inert gas. Further, the spacers 20 are spaced apart from the edges of the glass panes 12, 14 and 16. The distance between the spacers 20 and the adjacent edges of the glass panes 12, 14 and 16 are about the same as the distances between the adjacent glass panes 12, 14 and 16. The spacers 20 may be glued onto the glass panes 12, 14 and 16.
The glass package 10 of the second embodiment is also circumferentially enclosed by two slots 19 formed in the outer intermediate space between two adjacent glass panes 12, 14 and 16. Since the spacers 20 are spaced apart from the edges of the glass panes 12, 14 and 16, the slots 19 are formed by the outer portions of two opposite surfaces of the adjacent glass panes 12, 14 and 16 and by the outer circumferential sides of the spacers 20. The side walls of each slot 19 are formed by the outer portions of two opposite surfaces of the adjacent glass panes 12, 14 and 16, while the bottom wall of each slot 19 is formed by the outer circumferential side of the spacer 20. Additionally, the spacer 20 may include a channel at its outer circumferential side, so that the cross-section of the slot 19 is extended by the cross-section of said channel.
An inner side distance 22 is defined between an outer circumferential edge of the inner glass pane 12 and the spacer 20 between said inner glass pane 12 and the intermediate glass pane 14. In a similar way, an intermediate side distance 24 is defined between an outer circumferential edge of the intermediate glass pane 14 and the spacer 20 between the inner glass pane 12 and the intermediate glass pane 14. Further, an outer side distance 26 is defined between an outer circumferential edge of the outer glass pane 16 and the spacer 20 between said outer glass pane 16 and the intermediate glass pane 14. Said side distances 22, 24 and 26 correspond with the depths of one of the side walls of the slots 19. Preferably, the inner side distance 22, the intermediate side distance 24 and the outer side distance 26 are between 2 mm and 20 mm.
Instead of the gaskets 18 and spacers 20 of the first and second embodiments, respectively, the glass package 10 according to the third embodiment includes a frame 28 aligned at an outer side of the inner glass pane 12 and enclosing the intermediate glass pane 14 and outer glass pane 16. The outer side of the inner glass pane 12 is defined as the side opposite to the oven cavity in the mounted state. The frame 28 may be formed as a single-piece part or may include several frame parts. The circumferential side or sides of the further glass panes 14 and 16 may be overmoulded by the frame 28. Alternatively, the frame 28 may be disassembled from the glass panes 12, 14 and 16.
The frame 28 allows also a hermetic closed inner intermediate space as well as an open inner intermediate space between adjacent panes 12, 14 and 16. Moreover, the hermetic closed inner intermediate space may be vacuum-sealed or filled with inert gas.
The glass package 10 of the third embodiment is circumferentially enclosed by two channels 30. The channels 30 are formed in an outer circumferential side of the frame 28. The channels 30 enclose at least partially the frame 28 along its circumferential sides.
The framework 32 includes a front panel 34, a door frame 36, a door handle 40, fasting elements 42 for said door handle 40 and at least one front cover 44. The door frame 36 is permanently attached at an inner side of the front panel 34. The inner side of the front panel 34 is defined as the side towards to the oven cavity in the mounted and closed states of the oven door. The door handle 40 is attached at an outer side of the front panel 34 by the fasting elements 42. The outer side of the front panel 34 is defined as the side opposite to the oven cavity in the mounted and closed states of the oven door. In this example, the door handle 40 is attached at the outer side of the front panel 34 by two fasting elements 42, wherein said fasting elements 42 are arranged at the end portion of the elongated door handle 40. The front cover 44 is also attached at the outer side of the front panel 34 and covers partially the outer side of said front panel 34.
The door frame 36 is provided for receiving the glass package 10, so that the door frame 36 encloses at least partially said glass package 10. The glass package 10 is partially inserted into the door frame 36 by a movement perpendicular to the plane of the glass package 10 and the front panel 34 of the framework 32. The direction of movement of the glass package 10 relative to the framework 32 is represented by an arrow 50.
The door frame 36 includes one or more lug elements 38 arranged at an inner circumferential side of said door frame 36. The lug element 38 interacts with an inner edge of the intermediate pane 14. The inner edge of the intermediate pane 14 is defined as the edge towards to the oven cavity in the mounted and closed states of the oven door. The lug element 38 and the inner edge of the intermediate pane 14 form a snap-in mechanism. In this example, the door frame 36 is similar as an L-shaped or a G-shaped profile part.
The width and height of the inner glass pane 12 are at least as big as the width and height, respectively, of the door frame 36 of the framework 32. Thus, the inner glass pane 12 covers completely the door frame 36 of the framework 32.
In the assembled state of the oven door, the glass package 10 is received by the door frame 36 of the framework 34. The lug element 38 interacts with the inner edge of the intermediate pane 14. The lug element 38 is aligned at an inner side of the intermediate pane 14. The inner side of the intermediate pane 14 is defined as the side towards to the oven cavity in the mounted and closed states of the oven door. Further, an inner side of the door frame 36 is aligned at an outer side of the inner glass pane 12. The inner side of the door frame 36 is defined as the side towards to the oven cavity in the mounted and closed states of the oven door. The outer side of the inner glass pane 12 is defined as the side opposite to the oven cavity in the mounted and closed states of the oven door. Thus, a part of the door frame 36 is stably received by the slot 19 between the inner glass pane 12 and intermediate glass pane 14, wherein said part of the door frame 36 includes the lug element 38.
In
The oven door is assembled, i.e. the glass package 10 is received by the door frame 36 of the framework 34. The door frame 36 is attached at an inner side of the front panel 34. The door handle 40 is attached at the outer side of the front panel 34 by the two fasting elements 42. In this example, the fasting elements 42 are arranged at the end portions of the elongated door handle 40. The at least one front cover 44 is also attached at the outer side of the front panel 34 and covers partially the outer side of said front panel 34. In this example, two front covers 44 are attached at the outer side of the front panel 34, wherein each front cover 44 covers a lateral portion of the outer side of the front panel 34.
The width and height of the inner glass pane 12 are at least as big as the width and height, respectively, of the door frame 36 of the framework 32, so that the inner glass pane 12 covers completely the door frame 36 of the framework 32.
While the door frame 36 in
The width and height of the inner glass pane 12 are at least as big as the width and height, respectively, of the door frame 36 of the framework 32. Thus, also the inner glass pane 12 of the further embodiment covers completely the door frame 36 of the framework 32.
The present invention provides the glass package 10 and the framework 32 for the oven door, which allows simple manufacturing of the oven door by low costs. The glass package 10 can be at first preassembled and then inserted into the framework of the oven door. The structure of the glass package 10 allows an automatic preassembling of said glass package 10. Further, the structures of the glass package 10 and the framework 32 allow automatic assembling of the oven door by inserting the glass package 10 into the framework 32. Moreover, the present invention allows an easy disassembling of the oven door.
The present invention allows different kinds of glass packages 10. Said kinds of glass packages 10 may include different numbers of glass panes 12, 14 and 16. For example, two, three or four glass panes are possible. Further, glass packages 10 with different intermediate spaces are also possible. Moreover, different positions of the spacers 20 related to the oven cavity 46 are possible. Therefore, the gaskets 18, the spacers 20 and/or the gluing strip may be arranged in the area of the glass package 10. Additionally, the present invention avoids visible holding elements for the glass package 10. At last, the inventive oven door is easy to clean.
Although illustrative embodiments of the present invention have been described herein with reference to the accompanying drawing, it is to be understood that the present invention is not limited to those precise embodiments, and that various other changes and modifications may be affected therein by one skilled in the art without departing from the scope or spirit of the invention. All such changes and modifications are intended to be included within the scope of the invention as defined by the appended claims.
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|---|---|---|---|
| 14183706 | Sep 2014 | EP | regional |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/EP2015/059549 | 4/30/2015 | WO | 00 |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO2016/034293 | 3/10/2016 | WO | A |
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