GB2242263A

GB2242263A - Flue gas outlets for cooking ovens

Info

Publication number: GB2242263A
Application number: GB9006183A
Authority: GB
Inventors: Leslie Smith
Original assignee: New World Domestic Appliances Ltd
Current assignee: New World Domestic Appliances Ltd
Priority date: 1990-03-20
Filing date: 1990-03-20
Publication date: 1991-09-25
Anticipated expiration: 2010-03-20
Also published as: GB2242263B; GB9006183D0

Abstract

A cooking oven 1 is provided which is adapted to be slid-under a worktop 3 supported by one or more adjacent kitchen cabinets, a flue gas outlet 10 being provided by a slot across the rear part of the top surface 6 of the oven 1. An L-shaped cross section flue 7 which is adjustable forwards and backwards over the outlet 10 to enable the oven 1 to be accommodated at different relative depths under the worktop with the open top part 11 of the flue 7 aligned with a venting grille 12 in the worktop. <IMAGE>

Description

Cooking Ovens This invention relates to cooking ovens and more particularly to cooking ovens which are adapted to be fitted under a kitchen worktop, a venting grille being provided in the worktop through which hot flue gases from the oven are vented.

In U.K. Patent No. 2177791B there is described a cooker which is adapted to be slid-under a continuous worktop which is supported on one or more adjacent kitchen cabinets, a venting grille being provided in the worktop through which hot flue gases from the cooker are vented. In such an arrangement it is important for aesthetic reasons that the front of the cooker should line up with the front of the adjacent kitchen cabinet or cabinets and this is sometimes difficult to achieve due to the fact that the front line of the kitchen cabinets can vary dependent upon the front-to-back dimension of the kitchen cabinet, which can vary for different makes of cabinet, and upon individual installation requirements. The arrangement in U.K.Patent No. 2177791B seeks to overcome this by providing that the venting grille which is fitted in the kitchen worktop and which locates with the flue outlet of the cooker, is reversible whereby two different front-to-back positions of the cooker may be provided. It has been found that this does not provide a sufficient range of adjustment and it has been found necessary to carefully position the hole in the worktop for the venting grille to ensure that the venting grille lines up with the flue outlet of the cooker.

This is far from ideal as far as installation considerations are concerned and it would be preferable if the positioning of the venting grille in the worktop was not critical and could, for example, always be provided in a slot cut out of the rear edge of the worktop.

It is an object of th present invention to provide a cooking oven in which the aforesaid disadvantage is overcome.

According to the present invention there is provided a cooking oven which is adapted to be slid-under a continuous worktop supported by one or more adjacent kitchen cabinets, said oven having a flue gas outlet in the top thereof, means being provided for varying the front-to-back position of said outlet whereby said oven may be accommodated at different relative depths under said worktop.

In carrying out the invention it may be arranged that the flue gas outlet of said oven comprises a venting slot extending across the back of said oven, and an adjustable flue disposed over said slot, means being provided for adjusting the position of said flue relative to said slot. Preferably, said adjustable flue is of substantially "L" shaped cross-section with an open bottom part which overlies said slot and an open top part through which flue gas from said oven is vented.

Advantageously, the position of the adjustable flue will be calibrated whereby it may be preset to a required position.

It may be arranged that the flue gases from said oven are vented through said venting slot flanked by one or more layers of cooling air, derived, for example, from inside said oven and along the top thereof and/or up the rear thereof.

According to another aspect of the present invention, there is provided an oven as aforesaid in combination with a venting grille adapted for location in a slot in said worktop, said venting grille being arranged to locate with the flue gas outlet of said oven, in which said venting grille may be provided with a venting slot corresponding to said flue gas outlet, and one or more flanking venting slots for venting cooling air derived externally from across the top and/or up the back of said oven.

An exemplary embodiment of the invention will now be described reference being made to the accompanying drawings, in which: Fig. 1, is a schematic side view of the top part of a cooking oven in accordance with the present invention disposed below a kitchen worktop; Fig. 2, is a schematic side view of the top part of the cooking oven as depicted in Fig. 1 with the flue gas outlet adjusted to afford a different front-to-back position; Fig. 3, is a schematic side view of the top part of the cooking oven as depicted in Fig. 1 in which the flue gas outlet has not been correctly preset; Fig. 4, is a fragmentary view of the rear, lefthand top corner of the cooking oven depicted in Figs. 1 to 3, showing the calibration markings associated with the flue gas outlet; and Fig. 5, is a schematic, enlarged, cross-sectional view of the upper rear-section of a cooking oven in accordance with the present invention, depicting the flow path of flue gases from the oven, and flanking cooling air derived from both inside and outside the oven.

In Fig. 1 there is depicted the top part of a cooking oven 1 which may take any convenient form, such as a single oven with or without a grill, an oven with a separate grill cavity or a double oven, one of which may include a grill. The oven may, in principle, be a gas oven or an electric oven, or a combination oven using gas and electricity, although the invention is particularly applicable to gas ovens.

The cooking oven 1 of Fig. 1 includes a front face 2, only part of which is shown, which would include the necessary door or doors (not shown) as the case may be, and an operating control panel (not shown). The cooking oven 1 is disposed beneath a kitchen worktop 3 which, in practice, would be supported on one or more adjacent kitchen cabinets, and in front of a wall 4 to which the worktop 1 extends.

The rear of the top surface 5 of the cooking oven 1 is stepped at 6 to accommodate an adjustable flue 7, which extends across the back 8 of the cooking oven 1 and which is adjustably attached to the stepped surface 6 as will be described in more detail hereinafter. The adjustable flue 7 is of substantially "L" shaped crosssection with an open bottom part 9, which is disposed over a flue gas venting slot 10 in the top surface 6 of the cooking oven 1, and an open top part 11 which locates in a venting grille 12 which is disposed in a transverse slot cut-out of the rear edge of the worktop 3, immediately adjacent the wall 4.

Thus, any hot flue gases emanating from the flue gas venting slot 10 of the cooking oven 1 will be directed through the adjustable flue 7 and through the venting grille 12.

However, as has already been explained, for aesthetic reasons it is desirable to arrange that the front face 2 of the cooking oven 1 lines up with the front face of the adjacent kitchen cabinet or cabinets, and to do so it may be necessary to move the cooking oven forward relative to the worktop 3 and wall 4 as shown in Fig. 1 and yet maintain the venting grille 12 immediately adjacent the wall 4.

This is achieved as is shown in Fig. 2 of the drawings, by arranging that the adjustable flue 7 is movable rearwards relative to the stepped top surface 6 and the venting slot 10, but, because of the "L" shaped cross-section of the flue 7, the flue gases from the venting slot 10 are still directed upwards through the open top part 11 and through the venting grille 12.

In Fig. 3 is depicted the situation where the adjustable flue 7 has not been correctly preset to correspond to the required positioning of the front face 2 of the cooking oven 1, with the result that the venting grille 12 cannot be correctly located in the cut-out in the rear edge of the worktop 3 due to the bottom edge of the venting grille 12 being obstructed by the top surface of the flue 7. Thus, an indication of incorrect fitting of the flue 7 is obtained.

In Fig. 4 of the drawings there is depicted a top view of part of the adjustable flue 7 located on the stepped top surface 6 of the cooking oven 1. Each end of the adjustable flue 7 is provided with an outwardly extending flange, one of which is shown at 13, whtch lie closely adjacent the top surface and which are provided with a front-to-back slot 14 through which a screw 15 passes to secure the flange 13 to the top surface 6. In order to be able to preset the flue 7 to a required position prior to installation, a scale 16, conveniently calibrated in centimetres, is provided alongside the flange 13, and a calibration arrow 17 is provided on the flange 13 so that the flue 7 can be preset as required. Thus, if the measurement from the front face of an adjacent kitchen cabinet to the wall 4 is, for example, 597 cms., the flue 7 will be adjusted so that the calibration arrow aligns with "597" on the calibration scale 16. This permits precise installation of the cooking oven 1 regardless of the relative position of the front face of the adjacent kitchen cabinet. However, it is also possible to access screw 15 through the cut-out in the ear edge of the worktop 3 if a subsequent alteration in the preset position of the flue 7 is required.

In Fig. 5 of the drawings there is depicted an enlarged cross-sectional side view of the rear part of the cooking oven 1 depicted in Figs. 1 to 3. Thus, the adjustable flue 7 is located on the stepped top surface 6 of the cooking oven 1, the open bottom part 9 being disposed over the flue gas venting slot 10 of the cooking oven 1, and the open top part 11 locating in the venting grille 12. As can be seen in Fig. 5, the fue gas venting slot 10 in fact comprises three transverse apertures, a central aperture 17 communicating with the flue gas outlet proper from the cooking oven 1, a forward aperture 18 which communicates with the interior top part of the oven 1 and a rearward aperture 19 which communicates with the interior rear region of the oven 1.As the flue gas is vented from the central aperture 17, cooling air is "pulled" through the forward and rearward apertures 18 and 19 from the top and rear regions of the oven 1 so that the actual flue gas is flanked on both sides by cooling air before it is vented via the venting grille 12.

Similarly, the venting grille 12 is provided with a central region 20 which communicates with the top part 11 of the flue 7 and with a forward region 21 which communicates with the area immediately above the cooking oven 1 and with a rearward region 22 which communicates with the area immediately behind the cooking oven 1 and between it and the wall 4. Thus, as flue gas is vented through the venting grille 12, it is again flanked by cooling air derived via the top and rear of the cooking oven 1. In this way problems associated with very hot flue gases emanating from the venting grille 12 are minimised.

Claims

1. A cooking oven which is adapted to be slid-under a continuous worktop supported by one or more adjacent kitchen cabinets, said oven having a flue gas outlet in the top thereof, means being provided for varying the front-to-back position of said outlet whereby said oven may be accommodated at different relative depths under said worktop.

2. An oven as claimed in claim 1, in which the flue gas outlet of said oven comprises a venting slot extending across the back of said oven, and an adjustable flue disposed over said slot, means being provided for adjusting the position of said flue relative to said slot.

3. An oven as claimed in claim 2, in which said adjustable flue is of substantially 'tL" shaped crosssection with an open bottom part which overlies said slot ar.d an open top part through which flue gas from said oven is vented.

4. An oven as claimed in claim 2 or claim 3, in which the position of the adjustable flue is calibrated whereby it may be preset to a required position.

5. An oven as claimed in any of claims 2 to 4, in which flue gases from said oven are vented through said venting slot flanked by one or more layers of cooling air.

6. An oven as claimed in claim 5, in which said flue gases are flanked on one side by a layer of cooling air derived from inside said oven and along the top thereof.

7. An oven as claimed in claim 5, in which said flue gases are flanked on the one side by a layer of cooling air derived from inside the oven up the rear thereof.

8. An oven as claimed in claim 6, in which said flue gases are flanked on the other side by a layer of cooling air derived from inside the oven up the rear thereof.

9. An oven as claimed in any of claims 2 to 8 in combination with a venting grille adapted for location in a slot in said worktop, said venting grille being arranged to locate with the flue gas outlet of said oven.

10. An oven as claimed in claim 9, in which said venting grille is provided with a venting slot corresponding to said flue gas outlet, and one or more flanking venting slots for venting cooling air derived externally from across the top and/or up the back of said oven.

11. A cooking oven substantially as hereinbefore described with reference to the accompanying drawings.