EP2112436B1

EP2112436B1 - Mechanism for extracting a tray from a domestic oven

Info

Publication number: EP2112436B1
Application number: EP09157309.7A
Authority: EP
Inventors: Urtzi Zubiate Gorosabel; Andoni Galarraga Lekuona; Juan Ignacio Armendariz Ramos
Original assignee: Fagor Electrodomesticos SCL
Current assignee: Fagor Electrodomesticos SCL
Priority date: 2006-06-09
Filing date: 2006-06-09
Publication date: 2015-08-12
Anticipated expiration: 2026-06-09
Also published as: EP1865264B1; ES2547115T3; DE602006006984D1; EP1865264A1; ATE432447T1; PL1865264T3; ES2324426T3; EP2112436A1

Abstract

Mechanism for supporting at least one tray, said mechanism being suitable for a domestic oven with an internal enclosure having side walls with at least one guiding support substantially horizontal and parallel to each other. The mechanism is adapted to be supported on said guiding support and said mechanism comprises a rack (3), the tray being disposed over said rack (3). The mechanism comprises first and second side extraction supports (5a,5b) that are fixed respectively to lateral sides of the rack (3), each of said side extraction supports (5a,5b) comprising a respective surface of guidance, said mechanism also comprising a first side tray support (6a) that slides in relation to said first side extraction support (5a) and a second side tray support (6b) that slides in relation to said second side extraction support (5b), the tray being disposed on said side tray supports (6a,6b), wherein the side tray supports (6a,6b) are connected by connecting means (7), so that said side tray supports (6a,6b) can slide in parallel in relation to the side extraction supports (5a,5b).

Description

TECHNICAL FIELD

The present invention relates to the internal constituent parts of the internal enclosure of a domestic oven.

PRIOR ART

Conventional domestic ovens are adapted to have at least one tray and/or rack in their internal enclosure. Known domestic ovens comprise a plurality of guiding supports disposed in parallel on the side walls of their internal enclosures, said guiding supports being used as supports and guides for the trays and racks disposed in said internal enclosures.
ES 1 039 421 U discloses a domestic oven with a plurality of guiding supports disposed in parallel on the side walls of its internal enclosure, said guiding supports being used as supports and guides for movable racks, a tray being disposed on said rack in order to introduce it into said internal enclosure. If a user wishes to remove a tray from said internal enclosure, said user opens a door on said oven to access said internal enclosure, and manually causes the displacement of said rack, and therefore of said tray, towards the exterior of said internal enclosure.
US 2006/102015 A1 discloses a domestic oven that comprises an internal enclosure having side walls, each side wall having guiding supports substantially horizontal and parallel to each other, and a retractable oven rack.
US 2006/065265 A1 discloses an extendable oven rack assembly that is supported on two telescoping extension slides shaped for being received in support slots or ledges of an oven cavity.
WO 2004/020908 A discloses a mechanism for supporting a rack, said mechanism being suitable for a domestic oven that comprises an internal enclosure having side walls, each side wall having at least one guiding support substantially horizontal and parallel to each other. The mechanism comprises a extraction support that comprises a first support fixed to one of the sides of a rack frame, and a second support fixed to the other side of said rack frame, the rack frame being adapted to be supported on the guiding supports. The mechanism also comprises a rack support that comprises a first guide that slides in relation to said first support and a second guide that slides in relation to said second support.

DISCLOSURE OF THE INVENTION

It is an object of the invention to provide a mechanism for extracting a tray from a domestic oven as defined in the claims.
The mechanism of the invention is suitable for domestic ovens that comprise an internal enclosure having side walls, each side wall having at least one guiding support substantially horizontal and parallel to each other. The mechanism comprises:

a extraction support that comprises a first support fixed to one of the sides of a rack, and a second support fixed to the other side of said, the rack being adapted to be supported on said guiding supports, and
a tray support adapted to support that comprises a first guide that slides in relation to said first support and a second guide that slides in relation to said second support.

The two guides of the tray support are connected by connecting means. Thanks to said connecting means, said guides slide in parallel in relation to the extraction support.
These and other advantages and characteristics of the invention will be made evident in the light of the drawings and the detailed description thereof.

DESCRIPTION OF THE DRAWINGS

Fig. 1 shows an oven comprising a first embodiment of the mechanism of the invention.
Fig. 2 shows a rack on which the mechanism of Fig. 1 is disposed.
Fig. 3 shows the embodiment of the mechanism of FIG. 1, where the rack has been removed for clarity and the tray has been included.
Fig. 4 is a side view of a second embodiment of the mechanism of the invention.
Fig. 5 shows a third embodiment of the mechanism of the invention.
Fig. 6 shows a fourth embodiment of the mechanism of the invention.
Fig. 7 is a partial view of a fifth embodiment, showing the extraction spring that can be incorporated in the mechanism of the invention.
Fig. 8 is a side view of a sixth embodiment, showing the extraction tab that can be incorporated in the mechanism of the invention.

DETAILED DISCLOSURE OF THE INVENTION

The mechanism of the invention is used in a domestic oven 1 of the type shown in figure 1. Said oven 1 comprises an internal enclosure 10 in which can be disposed at least one tray 4 that is placed over a rack 3, shown in figure 2, and a door 11 that insulates said internal enclosure 10 from the exterior when it is closed. Each side wall 10' of said internal enclosure 10 comprises at least one guiding support 2 substantially horizontal and parallel to each other, said rack 3 being supported on and guided by said guiding supports 2. A number of racks 3 equal to the number of guiding supports 2 included on each side wall 10' of said internal enclosure 10 can be introduced.
Figures 1, 2 and 3 show an embodiment of the mechanism of the invention that comprises an extraction support comprising a first support 5a and a second support 5b that are fixed respectively to both sides 3a and 3b of the rack 3 by fixing means which can be for example two rivets 53 and 54 for each side 3a and 3b, as indicated in figure 2. Said rack 3 comprises a rod 30 substantially horizontal to each side 3a and 3b, the rivets 53 and 54 being riveted to the corresponding rod 30 in order to fix said side extraction supports 5a and 5b to said rack 3.
As shown in figure 3, the first support 5a and the second support 5b comprise a surface of guidance 51. A tray support is placed on the surfaces of guidance 51 of the extraction support, the tray 4 being placed on said tray support. The tray support comprises a first guide 6a and a second guide 6b placed respectively on the surfaces of guidance 51 of the first support 5a and the second support 5b, said first guide 6a and second guide 6b being slidable with respect to said first support 5a and said second support 5b. Each guide 6a and 6b comprises a respective supporting surface 68, as shown in figure 5, the tray 4 being placed on said supporting surfaces 68. The tray 4 is introduced to or extracted from the internal enclosure 10 of the oven 1 together with the guides 6a and 6b, which slide on the respective surfaces of guidance 51.
The guides 6a and 6b of the tray support are connected by connecting means 7, as shown for example in figure 3, so that said guides 6a and 6b slide in parallel in relation to the supports 5a and 5b. In a preferred embodiment, the connecting means 7 comprise a rod, as shown in the embodiments of figure 5 and figure 6.
The mechanism of the invention comprises the supports 5a and 5b, which are fixed to a rack 30, the guides 6a and 6b, which support the tray 4, and the connection means 7 that link both guides 6a and 6b. As already explained, the rack 3 is supported on and guided by the guiding supports 2 of the internal enclosure 10 of the oven 1, the mechanism therefore being extractable from the internal enclosure 10. Figure 5 and 6 show two possible embodiments of the mechanism, incorporating a rack 3.
In a preferred embodiment, the guides 6a and 6b comprise limiter means that cooperate with the rack 3 to prevent said guides 6a and 6b from sliding in relation to the supports 5a and 5b when the oven 1 is opened, thereby preventing the tray 4 disposed on said side guides 6a and 6b from moving out of the internal enclosure 10 of the oven 1.
In the embodiment shown in figure 5, the limiter means comprise a spindle 64 that is connected to the tray support, said spindle 64 being able to be moved in a transversal direction X, so that said spindle 64 cooperates with a projection 31 of the rack 3, preventing the guides 6a and 6b from sliding in relation to the supports 5a and 5b. By moving said spindle 64 in said transversal direction X, said spindle 64 can be released from said cooperation, said guides 6a and 6b being able to slide in relation to said supports 5a and 5b.
The guides 6a and 6b preferably comprise extraction means that assist with the sliding of the guides 6a and 6b in relation to the supports 5a and 5b. In the embodiment partially shown in figure 7, the guides 6a and 6b are hollow and comprise sliding means disposed in their interior, the extraction means comprising an extraction spring 66 housed in the interior of each guide 6a and 6b fixed to an exterior end 61 of the corresponding guide 6a and 6b. The extraction spring 66 is compressed when the oven 1 is closed, so that when the oven 1 is opened, said extraction spring 66 pushes the corresponding sliding means, said guides 6a and 6b thus sliding in relation to the supports 5a and 5b.
In the embodiment shown in figure 8, the extraction means comprise an extraction tab 63 on the exterior end 61 of each guide 6a and 6b, said extraction tabs 63 being compressed when the oven 1 is closed, so that when the oven 1 is opened said extraction tabs 63 are decompressed, thereby cooperating with the rack 3, said guides 6a and 6b thus sliding in relation to the supports 5a and 5b.
The surfaces of guidance 51 of the 5a and 5b, shown in figure 3, have preferably an inclination of a specific angle Ø in relation to the horizontal, indicated in figure 1, and said inclination descends towards the exterior of the internal enclosure 10. In that way, when the oven 1 is opened, due to the descending inclination of said surfaces of guidance 51, the guides 6a and 6b can slide by gravity towards the exterior of said oven 1, thereby moving said tray 4 in conjunction with said guides 6a and 6b.
In the embodiment shown in figure 4, the guides 6a and 6b comprise a respective support surface 68 substantially parallel to the surface of guidance 51 of the supports 5a and 5b, and one shoe 60 is disposed on each support surface 68, said shoe 60 being connected to the exterior end 61 preferably by a screw 60'. The tray 4 is disposed on said shoes 60, so that said tray 4 remains in a substantially horizontal position. Moreover, the guides 6a and 6b comprise at least one vertical window 62, the height of the shoes 60 being regulated by said vertical window 62, so that the tray 4 can remain in a substantially horizontal position with different specific angles Ø of inclination of the guides 6a and 6b.
In the embodiment of figure 4, the supports 5a and 5b comprise at least one substantially vertical regulation groove 52 crossed by the fixing means that fix said side extraction supports 5a and 5b to the rack 3, so that the specific angle Ø of inclination of the surface of guidance 51 of said supports 5a and 5b can be regulated, thereby adjusting the height at which said fixing means cross said regulation groove 52.
In the embodiments shown in figures 3, 5, 6 and 8, the guides 6a and 6b comprise a substantially horizontal supporting surface 68 on which the tray 4 is disposed, so that said tray 4 remains in a substantially horizontal position.
Preferably, to ensure that the door 11 does not scratch when pushing the guides 6a and 6b, each guide 6a and 6b comprises a respective contact element 65 disposed on the exterior end 61 of the corresponding guide 6a and 6b, as shown in figure 7. As an alternative, said guides 6a and 6b can comprise a connecting element 69 fixed to the exterior end 61 of each guide 6a and 6b, thereby connecting both guides 6a and 6b, said contact element 65 being disposed on said connecting element 69 as shown in figure 6. Said contact element 65 can comprise a cylindrical form, for example, or any other type of form that acts so that said door 11 pushes on said contact element 65 on closing.
Each guide 6a and 6b can be hollow, sliding means (not shown in the figures) being disposed in their interior, such as balls for example. Each support 5a and 5b comprises a stop (not shown in the figures) which cooperates with the sliding means of the corresponding guides 6a and 6b, thereby preventing said sliding means from moving, preventing therefore said guides 6a and 6b from continuing to slide and coming free from said supports 5a and 5b.

Claims

Mechanism for supporting at least one tray (4), said mechanism being suitable for a domestic oven (1) that comprises an internal enclosure (10) having side walls (10')each side wall (10') having at least one guiding support (2) substantially horizontal and parallel to each other, the mechanism comprising an extraction support (5a,5b) that comprises a first support (5a) fixed to one of the sides (3a) of a rack (3), and a second support (5b) fixed to the other side (3b) of said rack (3), the rack (3) being adapted to be supported on said guiding supports (2), and a tray support (6a,6b) that comprises a first guide (6a) that slides in relation to said first support (5a) and a second guide (6b) that slides in relation to said second support (5b), characterised in that said two guides (6a,6b) are connected by connecting means (7), so that said guides (6a,6b) slide in parallel in relation to said extraction support (5a,5b).
Mechanism according to claim 1, wherein the connecting means (7) comprise a rod.
Mechanism according to claims 1 or 2, wherein the extraction support (5a,5b) is fixed to both sides (3a,3b) of the rack (3) by means of rivets (53,54).
Mechanism according to any of the preceding claims, wherein the tray support (6a,6b) comprises limiter means that cooperate with the rack (3) to prevent said tray support (6a,6b) from sliding in relation to the extraction support (5a,5b) when the oven (1) is opened, thereby preventing the tray (4) disposed on said side tray supports (6a,6b) from moving out of the internal enclosure (10) of the oven (1).
Mechanism according to claim 4, wherein the limiter means comprise a spindle (64) that is connected to the tray support (6a,6b), said spindle (64) being able to be moved in a transversal direction (X), so that said spindle (64) cooperates with a projection (31) of the rack (3), preventing the tray support (6a,6b) from sliding in relation to the extraction support (5a,5b), and, by moving said spindle (64) in said transversal direction (X), said spindle (64) can be released from said cooperation, said tray support (6a,6b) being able to slide in relation to said extraction support (5a,5b).
Mechanism according to any of the preceding claims, wherein the guides (6a,6b) of the tray support (6a,6b) comprise extraction means (63,66) that assist with the sliding of the tray support (6a,6b) in relation to the extraction support (5a, 5b) when the door (1) of the oven (1) is opened.
Mechanism according to claim 6, wherein the guides (6a,6b) of the tray support (6a,6b) are hollow and comprise sliding means disposed in their interior, each guide (6a,6b) also comprising an extraction spring (66) in their interior fixed to an exterior end (61) of the corresponding guide (6a,6b) and which is compressed when the door (11) of the oven (1) is closed, so that when said door (11) is opened, said extraction spring (66) is compressed, thereby pushing the corresponding sliding means, said guides (6a,6b) thus sliding in relation to the supports (5a,5b).
Mechanism according to claim 6, wherein each guide (6a,6b) of the tray support (6a,6b) comprises an extraction tab (63) on their exterior end (61), said extraction tabs (63) being compressed when the door (11) of the oven (1) is closed, so that when said door (11) is opened said extraction tabs (63) are decompressed, thereby cooperating with the grille (3), said guide (6a,6b) thus sliding in relation to the supports (5a,5b).
Domestic oven characterised in that it comprises a mechanism according to any of the preceding claims.