WO2021086281A1

WO2021086281A1 - Domestic oven having a door with removable holding cap

Info

Publication number: WO2021086281A1
Application number: PCT/TR2019/050919
Authority: WO
Inventors: Mehmet Baris Gocer; Yahya AKKUS; Erdem EROGLU; Ogun DUZGUN; Burhanettin TURAN
Original assignee: Femas Metal San. Ve Tic. A.S.
Priority date: 2019-11-02
Filing date: 2019-11-02
Publication date: 2021-05-06
Also published as: EP4034814A1; EP4034814A4

Abstract

The invention is related to a domestic oven with a door comprising an outer panel (12) and a parallel inner panel (16) attached at a distance to each other forming a cooling channel therebetween; a holding cap (20) provided such that the inner panel (16) extends transversely at an upper edge (13) and delimits a cooling channel from the top between the outer panel (12); a side plate (50) extending vertically between the outer panel (12) and the inner panel (16) covering the cooling channel from the lateral side. The oven further comprises a locking mechanism (30) having a movable locking nose (32) which is provided on the side plate (50) to move against the lateral section (22) extending to the side plate (50) to engage a slot (25) at the lateral section (22) to lock the holding cap (20) such that disengage with a pressure in the opposite direction to release.

Description

DOMESTIC OVEN HAVING A DOOR WITH REMOVABLE HOLDING CAP

TECHNICAL FIELD

The present invention relates to domestic oven having a door with a pane, in particular an oven having an easily removable door with inner and outer panels forming a gap for cooling by an airstream.

BACKGROUND ART

In ovens with a door pane, a cavity in which electric heaters or a gas burner are disposed and delimiting a cooking chamber is closed by a door in a hinged manner and a window at the front make the cooking chamber to be visually accessible.

The door is generally obtained by fixing one or more panels spaced from each other. A cooling channel is obtained by mounting an inner and an outer panel and disposing one or more intermediate panels therebetween. Cooling airstream is passed through the cooling channel in order to cool the outer panel. It may be necessary to separate the inner and outer panel from each other for cleaning or maintenance purposes.

EP2386800 discloses, among other things, a door frame with a first hook element and a second hook element. The door column has a first extension member and a second extension member. The first hook element and the first extension member form a snap-in mechanism. The second hook element and the second extension element form the second snap-in mechanism. The first extension element and the second extension element are arranged at the same level at the upper end of the door column. The first hook element is kept shorter than the second hook element. Thus, the second hook element can engage deeper in the door column than the first hook element. When the second snap-in mechanism is activated, the second hook element is connected to the second extension element. When the first snap-in mechanism is deactivated, the first hook element is not attached to the first extension. The first hook element is activated by touching a release element. The door frame is connected to the door column with the second snap-in mechanism. BRIEF DESCRIPTION OF THE INVENTION

The object of the invention is to simplify the mounting and disassembly of the inner and outer panels in ovens comprising a door with a cooling channel between an inner and outer panel.

In order to achieve the aforementioned objective, the invention relates to a domestic oven with a door comprising an outer panel and a parallel inner panel attached at a distance to each other forming a cooling channel therebetween; a holding cap provided such that the inner panel extends transversely at an upper edge and delimits a cooling channel from the top between the outer panel; a side plate extending vertically between the outer panel and the inner panel covering the cooling channel from the lateral side. The oven further comprises a locking mechanism which is having a movable locking nose is provided on the side plate to move against the lateral section extending to the side plate to engage a slot at the lateral section to lock the holding cap such that disengage with a pressure in the opposite direction to release. The locking nose can be made movable by producing from a flexible material or can be configured in a rigid form and movable by means of a guide. The side plate can be in the form of a strip, arm, or a profile. In the preferred embodiment, the lateral section of the holding cap can be obtained by extending the edges towards the side plate, or in a possible embodiment, it can be mounted to the holding cap as an additional part. In the locking position, the locking mechanism secure the holding cap and the side plate from the top, while in the release position, the locking nose is retracted by applying pressure and the locking nose coming out of the slot allows the holding cap to be released from the side.

In a preferred embodiment the locking mechanism comprises a spring element abuts the locking nose from one end to press outwardly such that supporting the locking nose on the side plate. The spring element locks the side plate to which it is fixed to the holding cap so that it cannot be removed unless a force in opposite direction is applied to overcome the spring force when it passes into the slot with the pressure applied to the locking nose.

A preferred embodiment the locking mechanism is having a housing with a flat seat wherein the spring element of the locking mechanism is guided and is secured on the side plate. The housing protects the locking mechanism from external factors and provides a bearing for the spring element to facilitate the mounting.

In a preferred embodiment of the invention, the housing is provided at an upper end of the side plate. In this case, the locking mechanism is adapted to the door by simply mounting the housing from its upper end to the side plate. The housing may be at least partially integrated with the side plate upper end or it is possible to fix it as a separate part.

In a preferred embodiment of the invention, the spring element is a coil spring and the seat forms a cover surrounding the spring element from the outside. The spiral spring has a suitable structure and mechanical properties to apply force in the compression direction for the locking nose. The seat restricts the movement of the spiral spring towards a different direction and allows a unidirectional pressing force.

In a preferred embodiment of the invention, the housing is having a mounting lid adapted to the housing in a removable manner. The mounting lid both enables the assembly of the locking nose with a spring inside the housing, also enables access to the locking nose for maintenance purposes by disassembly when necessary.

In a preferred embodiment of the invention, the housing is aligned with the side plate on the same plane when the lateral section abuts to an upper end from a mounting wall provided at the upper end. In this case, the housing and the lateral section are aligned in alignment, maintaining the vertical extension of the side plate and allowing, for example, a flow of cooling air to pass through the side plate without being affected. The housing and the lateral section form a seamless integration.

In a preferred embodiment of the invention, the housing height is set shorter than the lateral section length. In this way, when the lateral section sits on the housing, it reaches the side plate and there is no space between them that the housing will create. Preferably the housing height is substantially equal to the lateral section length. In this case, the housing passes to the holding cap through the side plate and carries the holding cap from its upper part.

In a preferred embodiment of the present invention, the slot is arranged in the form of a hole through which the locking nose can access from its tip. In this way, when the door is opened, by applying pressure to the locking nose from opposite ends, the locking nose is allowed to be removed from the lateral section and the holding cap is removed.

A preferred embodiment of the invention a support wall is having a tab fixed on the side plate extending parallel to the inner panel and extending perpendicular to the housing at its upper side and supporting the holding cap from inside at its adjacent edge. While the housing seats the holding cap from the upper part at its opposite ends, the tab supports the holding cap transversely and allows it to be placed in the holding cap in a stable manner. In a preferred embodiment of the invention, the holding cap has a U-like cross-sectional form with the sides of the holding cap closed in the form of mutually opposite side forms and sitting on the side plate from the bottom. When the holding cap is placed, the inner panel extends at its upper edge and abuts the outer plate from inside. In the meantime, it holds the flat plate from its edges. By means of the U-like cross-sectional form, the side plate and the inner panel are freed when the user easily raises the holding cap.

In a preferred embodiment of the present invention, the locking nose is in the form of a button adjusted to pass freely through the housing. This allows the user to easily disassemble it by noticing the locking nose from the side extension and pressing it.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is an inside perspective view of a representative embodiment of the subject matter oven door in the assembled condition.

Figure 2 is a perspective view of an oven door shown in Figure 1 in disassembled condition.

Figure 3 is a top isometric view of a representative embodiment of a side plate in the inventive oven door.

Figure 4 is an interior view of a side plate shown in Figure 3 with the open locking mechanism cover.

Figure 5 is an inside view of a locking mechanism used on the door in the closed state.

Figure 6 is an enlarged view of an oven door according to the invention in the holding cap mounted state.

DETAILED DESCRIPTION OF THE INVENTION

In this detailed description, the inventive development is described without any limitation and only with reference to the examples for a better disclosure of the subject.

In Figure 1 , a door (10) used in the inventive domestic oven is shown in perspective from its interior. The door (10) comprises an outer panel (12) and an inner panel (16) parallel and spaced therewith, and an intermediate panel (14) placed at a distance between them. A handle (11) is fixed from its outer part in the upper part of the outer panel (12) so that it extends transversely. A holding cap (20) extends across the interior panel (16) of the door (10), between an upper edge (13) and the interior of the outer panel (12). There is a cooling channel where the airstream passes from bottom to top between the holding cap (20) and the outer panel (12) and the inner panel (16). There are equidistant and transverse openings (24) on the holding cap (20). The holding cap (20) rests on two opposite side plates (50) from the top. The side plate (50) is placed vertically such that it entirely covers one lateral edge (15) of the inner panel (16) on one hand and, on the other hand, abutting the outer panel (12) along its inner edge, closing the cooling channel from the sides. In the upper part of the side plate (50), a grid element (40) with openings between the rows of transverse extensions (42) is provided. The grid element (40) allows air passage to the cooling channel from the upper part of the side plate (50). When the middle part of the inner panel (16) is viewed from the outer panel (12), there is a glass viewing part (18) that enables to show the inner part.

In Figure 2, the door (10) is shown in perspective disassembled position. The holding cap (20) is in the form of a thin U-like profile and extends across partially inward from the upper edge (13) of the interior panel (16) from its rear part. An upper part (26) of the holding cap (20) is in a planar form and closes the space between them from the upper edge (13) towards the inner face of the outer panel (12). One lateral section (22) each extending down from opposite ends of the holding cap (20) extends planar from the upper end to the side plate (50). In the middle of the lateral section (22), a slot (25) in a circular hole form is drilled. A locking mechanism (30) is mounted to the lateral part (22) of the holding cap (20) from the upper end of the side plate (50) so that it fits from the inside. The grid element (40) takes air into the cooling channel between the outer panel (12) and the inner panel (16) by passing the ambient air through the extensions (42). The cooling channel discharges the air passing through the cooling channel through the openings (24) of the holding cap (20) from the top.

In Figure 3, the arm-shaped side plate (50) is shown in perspective from its upper part. The upper part of the side plate (50) comprises a support wall (55) formed with an L-like form. The support wall (55) is located close to an upper end (59) of the side plate (50) in a similar alignment with the grid element (40). As shown in Figure 4, on the side of the side plate (50) facing the lateral edge (15) of the inner panel (16), spaced gussets (552) extend between the support wall (55) and a vertically extending support part (57). A hole (551 ) is drilled on the upper part of the support wall (55). The support wall (55) is mounted to the outer panel (12) by means of a fixing element from an enlarged part (553) on its rear face. On the opposite front part, extensions (42) are located and the air passing between them passes over a slot (58) with an inclined inlet of the side plate (50) and joins the cooling airstream that advances in the cooling channel. A bolt section (51) in lamellar form extends upwards from the upper edge of the support wall (55).

The locking mechanism (30) has a box-like housing (33) and the housing (33) extends upwards from the upper end (59) on the side plate (50) in a vertical position to the tab (51). A locking nose (32) in the form of a button extends on the outer face of the housing (33). The locking nose (32) extends outward from the housing (33) in a flat cylinder-like form. At the upper end (59) there is a tray-like planar mounting wall (591). The casing (33) extends close to and parallel to the edge on the mounting wall (591 ). The distance between the edge of the mounting wall (591 ) and the housing (33) is approximately equal to the thickness of the lateral section (22) of the holding cap (20). Thus, when the holding cap (20) is seated on the face of the housing (33) which is the locking nose (32) from the lateral section (22), the locking nose (32) remains accessible through the opening (24) and does not protrude out.

In Figure 4, the interior of the housing (33) is shown with a mounting lid (36) removed from the top, which is mounted to multiple mounting openings (37) provided on the ceiling of the housing (33). Inside the housing (33) is a hollow cylindrical seat (34) in the core structure. The seat (34) is aligned to the middle center of the housing (33). A spiral spring element (35) extends coaxially within the seat (34). Mounting holes (31) in the form of screw holes are provided at the corners at the bottom of the seat (34). As shown in Figure 5, when the mounting lid (36) is attached to the housing (33), it compresses the spring element (35) from the back. The mounting lid (36) engages its upper claws to the mounting openings (37) and is fixed to the mounting holes (31 ) from the lower part with screws. The mounting lid (36) can be fixed to the mounting hole (31) with two screws parallel to each other and spaced apart, as well as single screw fixing can be realized. It is also possible for the mounting lid (36) to be attached to the housing (33) by a screwless connection type such as snap-fit. The length of the housing (33) is adjusted such that when the mechanism cover (36) is closed, the spring element (35) exerts a spring pressure force on the locking nose (32) from behind.

As shown in Figure 5, when the holding cap (20) is mounted to the upper edge (13) of the outer panel (12) and the inner panel (16), the locking nose (32) of the lateral section (22) engages on the extending face of the housing (33) and sits on the mounting wall (591) from its lower edge (27). During assembly, when the locking nose (32) in the form of a cylindrical protrusion in a flat form is pushed into the housing (33) and the holding cap (20) is seated from the lower edge (27) to the mounting wall (591 ), the locking nose (32) is aligned to the slot (25) and engages into the slot with force which the spring element (35) exerts outward. Due to the force applied by the spring element (35) against the pressure, the locking nose (32) remains inside the slot (25). Thus, the holding cap (20) is fixed from the top to the side plate (50) that carries the housing (33). In the cooking state, cooling airstream is passed from bottom to top through the cooling channel for cooling through the oven door. Meanwhile, the side plate (50), which reaches the cooling channel through the slot (58), draws the outdoor air as an auxiliary cooling airstream with the effect of vacuum along the grid element (40). In case of contamination that may occur on the outer part of the inner panel (16) or on the intermediate panel (14), especially in the monitoring part (18), by factors such as airstream and oily vapor, the user simply presses the locking noses (32) against the side plate (50). With the pressure force of the user overcoming the pushing force of the spring element (35), the locking nose (32) advances into the seat (34) and when it is released from the slot (25), the user pulls the holding cap (20) upwards and removes it. Thus, the inner panel (16) remains free along its upper edge (13) and the cooling channel can be accessed by removing it. REFERENCE NUMBERS

10 Door 34 Seat

11 Handle 35 Spring element

12 Outer panel 36 Mounting lid

13 Upper edge 37 Mounting opening

14 Intermediate panel 40 Grid element

15 Lateral edge 42 Extension

16 Inner panel 50 Side plate

18 Viewing section 51 Tab 20 Holding cap 55 Support wall 22 Lateral section 551 Hole

24 Opening 552 Gusset

25 Slot 553 Enlarged part

26 Upper section 57 Support section

27 Lower edge 58 Slot

30 Locking mechanism 59 Upper edge

31 Mounting hole 591 Mounting wall

32 Locking nose

33 Housing

Claims

1. A domestic oven with a door comprising an outer panel (12) and a parallel inner panel (16) attached at a distance to each other forming a cooling channel therebetween; a holding cap (20) provided such that the inner panel (16) extends transversely at an upper edge (13) and delimits a cooling channel from the top between the outer panel (12); a side plate (50) extending vertically between the outer panel (12) and the inner panel (16) covering the cooling channel from the lateral side characterized by a locking mechanism (30) having a movable locking nose (32) is provided on the side plate (50) to move against the lateral section (22) extending to the side plate (50) to engage a slot (25) at the lateral section (22) to lock the holding cap (20) such that disengage with a pressure in the opposite direction to release.

2. An oven according to claim 1 , wherein the locking mechanism (30) comprises a spring element (35) abuts the locking nose (32) from one end to press outwardly such that supporting the locking nose (32) on the side plate (50).

3. An oven according to claim 2, wherein the locking mechanism (30) is having a housing (33) with a flat seat (34) wherein the spring element (35) of the locking mechanism (30) is guided and is secured on the side plate (50).

4. An oven according to claim 3, wherein the housing (33) is provided at an upper end (59) of the side plate (50).

5. An oven according to Claims 3-4, wherein the spring element (35) is a coil spring and the seat (34) forms a cover surrounding the spring element (35) from the outside.

6. An oven according to claims 3-5, wherein the housing (33) is having a mounting lid (36) adapted to the housing (33) in a removable manner.

7. An oven according to claims 3-6, wherein the housing (33) is aligned with the side plate (50) on the same plane when the lateral section (22) abuts to an upper end (59) from a mounting wall (591) provided at the upper end (59).

8. An oven according to claims 3-7, wherein the height of the housing (33) is arranged shorter than the length of the lateral section (22).

9. An oven according to any of the preceding claims, wherein the slot (25) is arranged in the form of a hole through which the locking nose (32) access from the tip.

10. An oven according to any one of the preceding claims, wherein a support wall (55) is having a tab (51) fixed on the side plate (50) extending parallel to the inner panel (16) and extending perpendicular to the housing (33) at its upper side and supporting the holding cap (20) from inside at its adjacent edge.

11 . An oven according to any one of the preceding claims, wherein the holding cap (20) has a U-like cross-section form, the sides of which are closed to form the opposite lateral sections (22), and fit on the side plate (50) from the bottom.

12. An oven according to any one of the preceding claims, wherein the locking nose (32) is in the form of a button adjusted to freely pass inside the slot (25).