Cooking oven with smoke evacuation

The invention relates to an oven, especially Oven for Schaubäckerei, with the by Oven door containing closable baking chamber Oven housing, the one above the baking chamber arranged steam hood is associated.

Such known ovens are widely in practice spread, said the effective withdrawal of from the Baking chamber escaping steam to above the baking chamber have arranged steam hood which on the oven door bearing side of the baking chamber forward towards the user surmounted, the shape of the steam hood in the form of adjusted base of the baking chamber, ie rectangular and is configured by a constant pitch before the Oven door protrudes, thus protrudes beyond the front of the oven.

As a result, among other things, for ergonomic and For safety reasons, that the oven increases must be installed before the stove on the front protruding part of the extractor catch above the The head of the user is located, since otherwise the Freedom of movement behind the sales counter for Sale bakery would strongly eingschränkt plus the visibility of and below the extractor catch above the oven door arranged panel would be restricted. When arranged two superimposed Ovens it is with just one, positioned on the top Oven placed steam hood insufficiently possible deduct the swaths of said bottom oven.

The invention is therefore based on the object, a Oven of the type described above so that the possibilities provided by the extractor catch limits in the Placement of the oven are overcome.

This object is according to the invention in an oven of the aforementioned type achieved in that the Steam hood around a vertical axis swivel in mounted oven housing and movable between an in the Oven housing recessed rest position and a front that Front of the oven housing projecting operating position is adjustable.

The invention offers the advantage that during the Back operation with the door closed the steam hood in the oven housing is recessed, and in this Rest not impair the freedom of movement represents for the operating personnel. If the end of the Baking process when opening the oven door the steam exhauster is required, the steam hood around the vertical axis can be pivoted out of its rest position, the Steam hood in its operating position only on one side the oven far protrudes the oven front and at small swivel angles on the vertical axis is not before the front of the oven is adjusted so that on the vertical axis no obstruction of visibility of the control panel is given and no limitation of Freedom of movement is effected.

In the context of the invention it is provided that the vertical Axis for the steam hood on the same side of the Baking oven housing as the hinge for the oven door are arranged so as compared with the case where the vertical axis, for example, centrally placed to at the opening oven door only in the region of its free suck end, a parallel movement of the oven door and the steam hood is possible. The area of ​​the enclosed by the oven door with the oven housing Gap then corresponds to that of the steam hood provided space for sucking in size and shape. For this purpose, it is preferred that the vertical axis and the axis of rotation coaxial hinges are aligned.

For a simplified operation of the oven and especially the extractor catch is a drive to Pivoting of the steam hood provided.

A particularly preferred embodiment of the invention is characterized in that the drive for the temporally concerted adjustment of the steam hood before the automatic opening after baking Oven door is provided because so without intervention of Operators a seamless and complete withdrawal the steam is ensured, thus also when the Operating personnel behind the sales counter other Occupations pursues. Another advantage is that the Steam hood, prior to opening the oven door in the Operating position is, as the air intake the fan builds up an air flow which the complete withdrawal of steam ensures.

With regard to the requirements of continuous operation and the requisite ruggedness comprises the drive a connected to the steam hood double-jointed rod with or its opposite end to a linear motor an eccentric shaft is secured.

To a violation of the operating personnel by a uncontrolled avoid dehiscent oven door and the Swaths predetermine a defined trigger travel is a the opening angle of the automatically opening oven door limiting Türrastung provided.

Appropriately, the oven then so designed that the pivot angle of the steam hood by Türrastung limited opening angle of the oven door corresponds.

Since escaping from the baking chamber Steam not always ascend upward, but also expand laterally, are on the steam hood in addition to the downward towards the baking chamber pointing suction additional lateral openings formed in the side surface of the steam hood.

To the considerable during the baking operation in Extent from the baking chamber escaping steam trap to can, the oven is designed according to the invention so that in the steam hood a steam condenser is integrated, and that at least in the rest position of the steam hood partially exposed the suction to the required cooling air for the steam condenser to suck.

Thus, the front surface of the extractor catch the entire width can occupy the oven, it is provided that the inclined side surface of the steam hood to the front surface is aligned to an increase in the Width dimension on pivoting into the operating position to compensate.

is With regard to fault-free operation provided that the side surface of the through one of Oven housing arranged guide member is guided.

With regard to the simplicity of the construction is preferably, when the guide member through a T-shaped Profile part is formed, which with one leg in a in the side surface groove formed engages.

In the present invention, it is also possible if the Oven housing in two parts with a separate Extractor housing is designed as the integral Integration of the extractor catch in the oven housing for Functioning of the invention is not required and in The modular structure of existing retrofitting Ovens is made possible.

In the following the invention will be at a in the drawing Illustrated embodiment explained in more detail; it show:<dl tsize="6"><dt>Fig. 1</dt><dd>a perspective view of a Oven according to the invention with the steam hood in the rest position,</dd><dt>FIG. 2</dt><dd>one corresponding to FIG. 1 with the display Steam hood in the operating position,</dd><dt>Fig. 3</dt><dd>a schematic illustration of the section III-III of FIG. 1,</dd><dt>Fig. 4</dt><dd>the detail IV from Fig. 3,</dd><dt>Fig. 5</dt><dd>a perspective view of Oven housing with the guide member,</dd><dt>Fig. 6</dt><dd>the detail VI from Fig. 3,</dd><dt>Fig. 7</dt><dd>a of Fig. 3 with the corresponding representation Steam hood in the operating position, and</dd><dt>Fig. 8</dt><dd>two inventively designed ovens in a Two Kreizer arrangement with the two clutches in haze the operating position.</dd></dl>

The in the drawing (Fig. 1 to 8) shown, for the Use behind sales counters in the show bakery provided oven 1 comprises an oven housing 2 in said closable by an oven door 3 oven 4 is trained. This oven door 3 is connected via hinges at the oven housing 2 hinged and opens to the End of the baking process automatically one by one Türrastung limited opening angle alpha. To this emerging from the oven 4 swaths effectively deduct, is the oven 1 associated with a steam hood 5, which in the shown in the drawing Embodiment in a separate Extractor housing 6 is arranged, but also directly can be integrated into the baking oven housing second Of the Steam hood 5 is arranged above the baking chamber 4 and distinguished by the fact that the steam hood 5 a vertical, coaxial to the rotation axis of the hinges oriented axis 7 is pivotably supported between and a countersunk in the oven housing 2 of Fig. 1 apparent rest position and a front the front of the oven housing 2 projecting from FIG. 2 apparent Operational position is pivotable.

In sight of the FIG. 1 falls on immediately, that in the Rest of the steam hood 5 no extra space before the oven housing 2 and thus claimed the Freedom of movement of the operator behind the Sales counter does not restrict. In the operating position extends the steam hood 5 as a result of the pivoting movement only on one side out of the oven housing 2, thereby the restriction of movement is reduced and further the visibility of the control panel 8 of the Oven 1 remains without changes. The swing angle the extractor catch 5 corresponds to the through the Türrastung limited opening angle alpha of the oven door 3, as this is quite sufficient that opened out of the gap between the oven door 3 and the oven housing 2 deduct ascending plumes. From Fig. 2 is also immediately apparent that the form of the extractor catch 5 in the operating position of the shape of the gap is adapted the steam hood 5 ie where only small due to a Stomatal ascend little steam, even projecting low before the front.

To tilt the extractor catch 5 is a drive provided, one connected to the steam hood 5 Double jointed bar 9 comprises, with his mounted opposite end to a linear motor 10 is. Conceivable are of course also other solutions, for example, an eccentric shaft for adjusting the Double-jointed rod 9 exhibit. The drive is to used, the steam hood 5 timed to each other with the automatic opening after baking Oven door to adjust 3 to about 10-15 seconds before Opening the door 3 of the steam hood 5 in the pivoting operating position and so already a generate airflow of the first swath safe detected. The pivoting of the steam hood 5 also signaled the imminent end of the baking time by opening the Oven door. 3

In particular, from FIG. 2 will be seen that at the Steam hood 5 facing the next downwards towards the baking chamber 4 Suction additional lateral openings 11 in the Side surface 12 of the steam hood 5 are formed, the serve emerging from the oven 4 sides suck fumes.

In the steam hood 5 a steam condenser is 13 integrated. To the emerging during the baking operation To perform this swath, are the Rest position of the steam hood 5 at least partially the Intake dates, thereby in a simple manner is achieved in that the steam hood 5 at a distance from the arranged underlying plate of oven housing 2 is.

The side surface 12 of the steam hood 5 is inclined to Front surface aligned 14 and by a per Oven housing 2 arranged guide member 15 out, which is designed as a T-shaped profile part 16, the with a leg 17 in one in the side surface 12 of the Dunst catch 5 formed groove 18 engages.