DE7636267U1 - OVEN FOR HEAT TREATMENT OF FOOD PRODUCTS - Google Patents

Description

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P AT EN TA N WA LT E KLAUS D. KIRSCHNER WOLFGANG GROSSE

DIPL PHYSICIST

DIPL. ENGINEER

Toasty Snack International Copenhagen , Denmark

HERZOG-WILHELM-STR. 17th D-8 MUNICH 2

YOUR SIGN: VOUR REFERENCE:

LABEL: L 855 K / kn

OL "=» REFERENCE:

DATE: December 6, 1978

/ Oven for heat treatment of edible products

The innovation relates to an oven for heat treatment, e.g. for heating, roasting or grilling food.

In previously known ovens for the heat treatment of edibles, e.g. of sandwiches, bread and the like, the heat treatment of the food is done by means of thermal radiation, e.g. from a glowing Radiator carried out. However, this known method is not particularly suitable because, firstly, it is difficult to heat the food evenly, so there is a risk that the Food more or less charred. Second, it takes a long time to heat even if the heat transfer efficiency is high. In addition, the food can be touched with this not particularly hygienic procedure, and that 3 drops of fat splashed in the oven during heating and Parts of the edible can be spilled.

The innovation is based on the task of remedying these deficiencies and this is achieved by the furnace according to the invention according to claim 1.

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What is achieved here is that the food immediately after preparation Can be packed if the hygienic conditions are as good as possible and that the food can be packed in without unpacking a closed oven can be put in place, which heats the food with infrared rays on both the top and the top irradiated on the underside. This infrared irradiation device is particularly suitable because it is almost instantaneous emits its full heat output after power is supplied to the radiators - the installation is also relatively cheap and simple, and the power requirement is low. This significantly reduces the time required for heating. The packaging makes The heating is very hygienic, as spilled or evaporated food remains in the plastic bag and therefore the oven does not contaminated. At the same time, this increases the quality of the finished, heated product, as the consistency of the food is achieved in this way and retains its taste.

By using the oven according to the invention to heat the food, a particularly expedient focus becomes the heat rays achieved, whereby an inexpensive and quick heating between the opposing, reflective Reflectors reached v / ird. The efficiency is increased if a closed reflector is used, as in claim 2 is mentioned where a heat source is attached both above the grate and under the grate and thus the food. In the end Operation, i.e. placing and removing food in or on the oven, is made easier if the upper The reflector is moved away from the grate when the oven door is opened, as is done by the measures of claim 3.

An embodiment of the innovation will be described in detail below with reference to the drawing, the f a cross-section. Shows through a furnace, wherein the overhead reflector screen and the oven door in the closed position (solid lines) and in the open position (dashed lines) are shown .

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In the exemplary embodiment shown, the furnace 1 is more closed than e'in Box with a door 8 shown which is hinged at its lower edge with a hinge to the oven that the When opening the door, it swings outwards and downwards ζ horizontal position, as shown with dashed lines.

Inside the furnace has a horizontal plate with through holes or a grate 4, which during the heat treatment the food can hold 2. The grate 4 must be dimensioned so that it allows as much heat radiation to pass through and absorbs as little heat as possible, so that the largest possible part of the radiated heat can heat the food 2.

Under the grate 4 a stationary reflector 6 is mounted, the largest cross-sectional area of which covers the part of the grate where the food 2 is located during the heat treatment. The cross-section becomes smaller towards the bottom where an infrared radiator 7 is mounted is. The reflector 6 is made reflective on its inner side by being polished so that the heat rays reflected and focused on the food on the grill. The reflector can e.g. be a truncated pyramid, a truncated cone or Be designed paraboloid.

A pivotable reflector 5, which can be designed like the lower reflector 6, is mounted on the upper side of the grate 4. This reflector 5 is also provided with an infrared radiator 7 at its tip.

This is pivotable on the rear side edge 9 of the reflector attached so that it can be pivoted upwards from its system against the grate, which is indicated in dashed lines is. This reflector 5 is further connected to the door with a connecting device 1o in such a way that the reflector is pivoted upwards when the door 8 is pivoted outwards and downwards from the door opening. To this Way, the loading and unloading of food can be done in a simple manner

Way to take place; and the facility as such is robust. It is also always safe to eat in an enclosed space Reflector is located when the oven is closed and the radiators are on. The oven can be on ordinary It may be provided with a thermostat, timer and similar control to ensure proper heat treatment.

The infrared radiators 7 can be of any known type. Especially Tubular quartz lamps made by Philips with the designation IRK 13169 Y are suitable because they connect with the packaging film have proven to be suitable.

Operation is described below. Food 2, which can be a sandwich, for example, is in after its production encased a plastic sheet 3 which is easily transparent to infrared rays and which also has such a high melting point and has a flash point that it is not destroyed by the heat treatment. For the plastic film 3, one is particularly suitable

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is heat-resistant up to 26o ° C. After that, the enveloped Food brought on the grate, and when the oven door is closed the food lies in the closed reflector, in front of it irradiated on all sides. The heat treatment is finished after a short time. The food can be removed and unpacked and is ready to serve. This process therefore ensures quick, clean and hygienic preparation. The special one The design of the oven also ensures that the food is the same everywhere because of the even heat treatment is warm.

Claims (3)

PATENT TANKS "*" '· ■ · KLAUS D. KIRSCHNER WOLFGANG GROSSE DIPL-PKYSIKER DIP L.-l NG EN I EU R HERZOG-WILHELM-STR17 D-8 MUNICH 2 YOUR ZBCHEN: G 76 36 267.9 your reference.1 Toasty Snack International ours: k / UK, ".., OUR REFEHENCE: Copenhagen, Denmark DATE: January 24, 1979 Claims for protection 1. Oven for heat treatment of edible products wrapped in plastic wrap are encased, which is slightly permeable to infrared rays and sufficiently heat-resistant, characterized in that that the furnace (1) is provided with a horizontally mounted grate (4) on which both against the bottom are arranged as reflecting reflectors (5, 6) directed towards the upper side, the diameter of which increases to one or more Infrared radiators (7) narrowed. 2. Oven according to claim 1, characterized in that the reflector consists of a closed reflector, which is formed from two opposing reflectors (5, 6), attached to the top or bottom of the grate (4) are, and that each reflector has at least one infrared radiator (7) at the narrower end. 3. Oven according to claim 1 and 2, wherein the oven is provided with a door which gives access to the grate, characterized in that that the upper reflector (5) is pivotally attached to its rear edge (9) and with the door (8) by a connecting device (10) is connected in such a way that the upper reflector (5) is lifted away from the grate (4) when the door is opened, and that when the door was closed it was lowered to rest against the Rosb will*