DE102008049305A1 - Hood for cooling of food portioned in trays, particularly vegetables, has pot-shaped body made of plastic such as polypropylene - Google Patents

Abstract

The invention relates to a hood for cooling dishes portioned in dishes. The invention has for its object to improve a hood for cooling portioned dishes in dishes such that can be dispensed with the double walledness of the hood entirely without the cooling effect is substantially reduced, and that the hood equally for round and square trays at easy handling and cost-effective production can be used to save space. This object is achieved in that the body of a side walls (3.1 to 3.4), in the direction footprint open foot (2) for receiving a round or square shell (7) is formed, wherein abutting corner regions (4) of the side walls are rounded and the middle portions of the sidewalls are provided with outwardly arched wall arches (W) arranged crosswise on a common circumference line (KU) whose diameter (DKU) matches the diameter (DS) of the round shell (7), and in that an inwardly directed shoulder (8) is formed as a support for the shell on an area of the side walls opposite the contact area, which carries an intermediate part (11) which is respectively formed by claw-shaped formations (17) in the corner areas (4) of the shoulder (4). 8) is supported, and that the intermediate part is closed by an over the shell located bottom (16), of which a cylindrical f Shaped headboard (19) ...

Description

The The invention relates to a hood for cooling in trays portioned food, in particular side dishes, with a plastic, for example, polypropylene, pot-shaped body, the shell without contact with the shell cuff-like up to their Embed footprint.

State of the art

For cooling or keeping cool food, especially side dishes over a longer period uses the state of the art according to EP 0 461 549 B1 a lower tray member including a lower plate of given size and shape and a lower peripheral wall protruding up from the peripheral edge of the lower plate, further comprising an upper tray member mating with the lower tray member, a predetermined distance over the lower plate Serving tray and having an upper side wall projecting upwardly above the serving plate and engaged around the peripheral edge of the two plates with the lower plate, the lower and upper tray elements forming a chamber therebetween. The upper tray member is attached to the lower tray member and forms with this a sealed main gel chamber which is filled with a cooling gel. The cooling gel consists of 75 to 85% by weight of water, 1 to 5% by weight of acrylic polymer, 1 to 5% by weight of potassium sorbate, 1 to 5% by weight of carboxymethylcellulose, 10 to 20% by weight of polyglycol, 5 to 10% by weight of corn starch and 1 to 5% by weight of triethanolamine.

In the DE 20 2004 020 833 U1 is a system for tempering hot and cold food, in particular portioned food for hospitals, care facilities, homes o. The like. With a cup-shaped base and a lid or hood-shaped upper part, each having cavities, which are filled with insulating insulating material made of plastic foam, wherein lower part and upper part are each provided with a circumferential web for centering and supporting the upper part on the lower part, a positioned in the lower part, hollow trained insert, in the cavity of a heat transfer medium is included, and a worn by the use of crockery for food. There are inserts with different Wärmeleitverhalten and different heat storage capacity, but with substantially adapted to the inner diameter of the lower part of the outer diameter and unified shape are provided, which are arranged equally interchangeable in the lower part.

These and those of the prior art according to DE 40 39 775 A1 . DE 100 63 891 A1 . DE 33 06 364 A1 . DE 39 04 885 A1 known solutions, the common disadvantage is that the cloche or the lid is always placed on the food container or pedestal of the food container. The food container or base must therefore be double-walled, so that a heat transfer from the environment / food to the food / environment can be kept correspondingly low. For simple shells this is correspondingly complex and has therefore not been able to prevail in the hotel and restaurant industry, in kitchens, nursing homes, hospitals, nursing homes and homes for the disabled as well as in private households.

From the FR 2 447 174 A1 For example, a lid for keeping food warm is known, which has a tempered paraffin-filled chamber for keeping warm. The US 2 301 510 A describes a food cover having an inner and outer wall spaced from each other forming an air-insulating space and a space in which condensed vapor from the hot food is collected.

In the GB 2 178 944 A is a small domestic container for storing, for example, butter with a double wall formation, which is divided into an outer and inner chamber, wherein the outer chamber is evacuated and the inner chamber can be filled with heatable liquid.

From the DE 10 2007 022 471 Furthermore, a lid for cooling food portioned in dishes, in particular side dishes, is known, which comprises a hood-like plastic, for example polypropylene, molded hollow body for receiving a coolant. The hollow body contains at least one cooling chamber for receiving the coolant and at least one insulating chamber for insulating the cooling chamber, wherein the cooling chamber is arranged along the shell facing. The isolation chamber and cooling chamber are arranged one inside the other. The hollow body is designed as a pot-like hood, which has no contact with the shell and einhaust the shell to about the height of its footprint.

All this known lid and hoods for keeping food cool require technologically complex joining processes for producing the liquid-tightness of the individual Chambers, in particular joining areas, in which several wall sections must be joined together and on top of each other, still tend to leaks anyway.

task

In this prior art, the present invention seeks to provide a hood for cooling portioned dishes in dishes the beginning mentioned genus to improve such that the double walledness of the hood can be dispensed with entirely, without the cooling effect is substantially reduced, and that the hood is equally space-saving use for round and square trays with ease of use and cost-effective production.

These Task is by a hood of the type mentioned with solved the characterizing features of the claim.

advantageous Embodiments of the inventive method the dependent claims.

The Hood according to the invention is characterized that a cup-shaped, single-walled hood body is available, whose hollow foot round or can pick up square trays without making contact with the shell arises. The cooling chamber with its under the influence of the cooling liquid standing ground is located at a defined distance directly above the shell opening, allowing between food surface in the shell and the bottom an air layer with essentially same amount that acts as insulation.

From Another advantage is that the hood receiving the food Shell einhaust, d. H. the hood encloses the shell without any contact and simply sits on the table or tablet surface, whereby a direct exchange of air prevents condensation becomes.

Of the Invention is based on the knowledge, the foot of the hood form so that both round bowls as well as square bowls can be enclosed. This is achieved by that the foot inside cuboid-shaped and made of side walls is formed, the abutting corner areas rounded are and their middle sections circular segment-like bulges have, which are opposite each other like a cross in the side walls. The bulges have a common inside diameter, the matched to the diameter of the male shell, so that a round bowl easily from the foot of the invention Hood can be included.

The cuboid basic structure of the foot represents over it In addition, sure to have square bowls whose side length the clear side wall length of the foot of the invention Hood fits, fit in the hollow foot.

From special meaning is that at one of the footprint opposite upper area of the foot one inwardly directed, substantially square shaped shoulder is provided as a support for the shell, on which an intermediate part is arranged, each by claw-shaped formations supported in the corners of the shoulder outside is, and that the intermediate part by a defined distance over the shell is closed bottom, of which a cylindrical Headboard is arranged towering, whose upper edge with a External thread is provided, which has a cover with an internal thread is assigned screwed, with the bottom, headboard and lid a isolated from the lid by a sealing washer Form a space for holding a cooling fluid, and that the screwing of the lid and headboard unsolvable by an additional bonding liquid-tight and is formed cohesively.

The latter has the extraordinary advantage of being a liquid-tight and isolated, d. H. a doubly secured closure arises, the leakage of the cooling liquid from the Space safely prevented.

In Another embodiment of the invention, the intermediate part has a cylindrically shaped outer wall extending to the upper Edge of the headboard extends. It extends from the ground towards the foot Intermediate part has on its inside sickle-like edges, bulges, rounded corners with sloped slopes, which sufficiently stiffen the intermediate part and the head part, so that a correspondingly high torque when screwing and gluing of the lid are applied to the upper edge of the head part can.

The Stiffness is further enhanced by the fact that the wall arches formed on the inside of the intermediate part of a circle segment and are arranged opposite each other, wherein the Inner diameter of the wall arches the inner diameter of Wall arches in the sidewall of the foot corresponds, and both wall arches each vertically above each other are arranged offset approximately inwards.

The transition from the essentially square shoulder into the cylindrical one shaped outer wall of the intermediate part in the corner is through reached the bevel, which with on the outside wall of the intermediate part molded claw-shaped shape corresponds.

The hood-shaped body is one piece, ie compact. Due to its special structural design, the hood according to the invention for cooling food is impact resistant, mechanically stable, resistant to transport and hygienic very easy to clean. Leave by the slight taper of the foot the hoods stack together to save space and also unstack them again.

Further Advantages and details will become apparent from the following description.

embodiment

The Invention will hereinafter be an embodiment be explained in more detail.

It demonstrate:

1 a perspective view of the hood according to the invention from below on the foot,

2 a bottom view of the foot of the hood according to the invention,

3 a perspective view of the hood according to the invention from the top of the head without a lid,

4 a section along the line AA the 4 with shell and

5 a perspective view of the lid of the hood according to the invention.

6 a section along the line BB of 5 ,

The 1 and 2 show the hood of the invention 1 made of injection-molded polypropylene in a perspective view from below on the foot and a corresponding bottom view.

The hood of the invention 1 owns a foot 2 that has four side walls 3.1 . 3.2 . 3.3 and 3.4 is formed, of which in each case the abutting side walls 3.1 and 3.2 . 3.2 and 3.3 . 3.3 and 3.4 such as 3.4 and 3.1 through rounded corner areas 4 connected to each other. The side walls 3.1 to 3.4 stand with their the base, such as tabletop or tray, facing peripheral edge 5 on the base and enclose an approximately square shaped space 6 for holding a shell to be cooled 7 (please refer 4 ). The side walls 3.1 to 3.4 have an inwardly directed slight inclination α with respect to the vertical and a height H corresponding to the height of the male shell 7 is adjusted.

When Advantageously, inclination angles of 82 ° to 85 ° are preferred 83 ° proved.

Each of the side walls 3.1 to 3.4 has a circular segment-like arched outward wall arch W, which is arranged in the central portion of the respective side wall. All wall arches W of the side walls 3.1 to 3.4 lie on a common circumference line KU whose diameter DKU on the diameter DS of the male shell 7 is tuned. This makes it possible in the square shaped foot 2 Peel 7 with a round shape (see 2 ).

At the edge 5 facing away from the upper area of the side walls 3.1 to 3.4 is one inside in the room 6 directed shoulder 8th formed on the inside along the side walls 3.1 to 3.4 a step-like heel 9 for supporting the upper edge 10 the Bowl 7 or for nesting the hoods according to the invention 1 having. The inside on the side surfaces 3.1 to 3.4 running paragraph 9 limited in cooperation with the side surfaces 3.1 to 3.4 a substantially band-like circumferential footprint AF for trays 7 with square shape, whose side length about the clear side length SL of the side walls 3.1 to 3.4 is adjusted so that it is equally possible square bowls 7 take.

To the shoulder 8th is a cylindrical intermediate part 11 formed, the towering of the substantially square footprint AF wall 12 on the inside with edges 13 , Bevels 14 and wall arches 15 is provided. The edges 13 extend over the entire height HZ of the intermediate part 11 passing through a circular bottom 16 is completed. The side walls 3.1 to 3.4 , paragraph 9 , the wall 12 and the ground 16 thus surround the space 6 for receiving the shell 7 ,

The outside of the wall 12 of the intermediate part 11 owns - like 3 shows - a cylindrical shape in the corner areas 4 each by claw-shaped formations 17 with the shoulder 8th torsionally rigid connected.

The central wall arches W of the side walls 3.1 to 3.4 lie opposite each other diametrically cross-like. The wall arches 15 of the intermediate part 11 are opposite the wall arches W of the side walls 3.1 to 3.4 arranged slightly inwards so that the wall arches 15 with approximately the same curvature lying one above the other in alignment with the wall arches W run.

The rounded corner areas 4 are inside towards the ground 16 with bevels 14 provided with the claw-shaped formations 17 on the outer jacket 18 of the intermediate part 11 correspond. The wall arches 15 are each through two over the entire height HZ of the intermediate part 11 vertical, inwardly projecting edges 13 limited and supported, with the edges 13 a stabilization or material moderate reinforcement of the corner area 4 with its bevel 14 cause.

The 4 shows a section through the hood according to the invention 1 along the line AA the 3 ,

The hood 1 in the illustrated state, standing on a plate shell 7 one.

The step-like heel 9 the shoulder 8th sets with its footprint AF on the top edge 10 the Bowl 7 on. From the step-like heel 9 runs in the vertical direction the wall 12 of the intermediate part 11 to the ground 16 so that the ground 16 always a defined distance from the upper edge 10 adheres to the shell.

From the ground 16 protrudes a tubular headboard 19 on whose outer diameter AK corresponds approximately to the outer diameter AZ of the intermediate part, when the slight inclination & is neglected. The upper edge area 20 of the head part 19 is with an external thread 21 Mistake. By an internal thread 22 having a lid 23 (please refer 5 ), whose inner diameter ID to the diameter AK of the head part 19 is tuned, the headboard 19 with the interposition of a circular thin sealing disc 24 whose inner diameter is the inner diameter ID of the lid 23 corresponds, closed. The sealing washer 24 It is made of polyethylene and at the same time fulfills the function of isolation. In the closed position of the lid 23 pushes the top edge 20 of the head part 19 in the gasket 24 sealingly.

The external thread 21 at the top 20 of the headboard 19 and the internal thread 22 on the lid 23 are made up of several split threads.

The headboard 19 encloses a recording room 25 for a cooling liquid for cooling the in the shell 7 located food. Before screwing on the lid 23 becomes the recording room 25 filled with coolant, the external thread 21 at the upper edge area 20 of the head part 19 and the internal thread 22 of the lid 23 with a glue 26 coated and the lid 23 Immediately with a defined tightening torque on the upper edge area 20 of the head part 19 screwed. The application of the appropriate tightening torque is achieved by the knurling 30 on the top wall 27 facilitated. After curing of the adhesive creates a cohesive insoluble and liquid-tight connection between the lid and headboard. Suitable adhesives are solvent-free two-component acrylate adhesives.

As 6 shows is the top edge 28 the top wall 27 of the lid 23 with a sealing lip 29 provided, against an outer circumferential shoulder pad 31 of the head part 19 seals as soon as the lid 23 gets into its closed position, so that filled with coolant receiving space 25 at the same time opposite the lid 23 is isolated. For better sealing of the sealing lip 29 opposite the circulation shoulder 31 is in the pad shoulder 31 one to the shape of the sealing lip 29 adapted recess 32 formed. sealing lip 29 and recess 32 preferably have a triangular shape.

The coolant is in such an amount in the receiving space 25 filled that the volume changes occurring during freezing are problem-free. For example, a coolant is used from a mixture of 76 to 84% by weight of water, 4 to 6% by weight of thickener, 9 to 12% by weight of glycol, 1.5 to 2.5% by weight food coloring and 2 to 4 wt .-% bittering agent is filled. The hood filled with coolant 1 is cooled after its closure in a refrigerator, for example, to temperatures of -18 ° C for 12 hours. The so cooled hood 1 holding a cup 7 About 3.5 hours to a temperature of 10 ° C. This is achieved by placing the coolant directly on the floor 16 acts and cools this strong. The shell 7 is at a defined distance from the ground 16 , so in addition to the room 6 the hood of the invention 1 directly above the shell 7 constant amount of air can act as insulation, which effectively counteracts a temperature loss.

1

Hood

2

foot

3.1 to 3.4

Sidewalls of 2

4

corner areas

5

Circumferential edge of 2

6

Recording room of 2

7

Bowl

8th

Outstanding shoulder

9

Excellent levels paragraph

10

Upper edge of the shell 7

11

intermediate part

12

Wall of the intermediate part 11

13

edge

14

bevels

15

wall sheets

16

ground

17

Pratzenförmige formation

18

Outer jacket of 11

19

headboard

20

Upper edge of 19

21

External thread of 20

22

Internal thread of 23

23

cover

24

sealing washer

25

accommodation space for coolant

26

Glue

27

cover wall

28

Oberer Edge of the top wall

29

Sealing lip in the edge 28

30

Outer Knurling on the top wall

31

Support shoulder on 19

32

Recess in 31

AF

Footprint of 9

AK

Outside diameter of 19

AZ

Outside diameter of 11

DKU

diameter the circumference line

DS

Diameter of the shell 7

HZ

Height of the intermediate part 11

ID

Inner diameter of the lid 23

SL

Side length of 3.1 - 3.4

α

tilt angle

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• EP 0461549 B1 [0002]
• - DE 202004020833 U1 [0003]
• - DE 4039775 A1 [0004]
• - DE 10063891 A1 [0004]
• - DE 3306364 A1 [0004]
• - DE 3904885 A1 [0004]
• FR 2447174 A1 [0005]
• - US 2301510 A [0005]
• - GB 2178944 A [0006]
• - DE 102007022471 [0007]

Claims (15)

Hood for cooling portioned food in dishes, in particular side dishes, with a plastic, such as polypropylene, pot-shaped body, which cradle the shell without contact with the shell like a crawl to its footprint, characterized in that the body of a side walls ( 3.1 . 3.2 . 3.3 . 3.4 ), in the direction of footprint open foot ( 2 ) for receiving a round or square bowl ( 7 ) is formed, wherein abutting corner regions ( 4 ) of the side walls ( 3.1 to 3.4 ) are rounded and the middle portions of the side walls are provided with outwardly arched wall arches (W), which are arranged on a common circumference line (KU) crosswise opposite, whose diameter (DKU) on the diameter (DS) of the round shell ( 7 ) and that on one of the footprint opposite area of the side walls ( 3.1 to 3.4 ) an inwardly directed shoulder ( 8th ) is formed as a support for the shell, which is an intermediate part ( 11 ), which in each case by claw-shaped formations ( 17 ) in the corners ( 4 ) the shoulder ( 8th ) and that the intermediate part ( 11 ) through an overlying shell ( 16 ) is completed, of which a cylindrical head part ( 19 ) is arranged towering whose upper edge region ( 20 ) with an external thread ( 21 ), which has a lid ( 23 ) with an internal thread ( 22 ) is screwed, wherein ground ( 16 ), Headboard ( 19 ) and lid ( 23 ) one opposite the lid ( 28 ) through a sealing washer ( 24 ) isolated room ( 25 ) form for receiving a cooling liquid, wherein the internal thread ( 22 ) of the lid ( 23 ) and the external thread ( 21 ) of the header ( 19 ) liquid-tight and cohesively by a bond ( 26 ) are inextricably linked. Hood according to claim 1, characterized in that the wall arches (W) on the side walls ( 3.1 to 3.4 ) are formed kreisegmentförmig. Hood according to claim 1, characterized in that in each case two side walls ( 3.1 . 3.3 ; 3.2 . 3.4 ) are arranged parallel to one another at a distance from one another which corresponds to one side length of the quadrangular shell ( 7 ) corresponds. Hood according to claim 1 to 3, characterized in that the side walls ( 3.1 to 3.4 ) of the foot ( 2 ) opposite the footprint of the shell ( 7 ) are arranged slightly inclined. Hood according to claim 4, characterized in that the angle of inclination () of the side walls ( 3.1 to 3.4 ) Is 82 ° to 85 °, preferably 83 °. Hood according to claim 1 to 3, characterized in that the intermediate part ( 11 ) a cylindrically shaped outside and one with edges ( 13 ), rounded corners ( 4 ) with in the direction of the ground ( 16 ) bevels ( 14 ) and wall arches ( 15 ) has a substantially square shaped inner side. Hood according to claim 6, characterized in that in each case two edges ( 13 ) the wall arches ( 15 ), wherein the edges ( 13 ) in alignment of the wall arches (W) of the side wall ( 3.1 to 3.4 ) perpendicular to the ground ( 16 ) are arranged. Hood according to claim 6 and 7, characterized in that the wall arches ( 15 ) are formed in the intermediate part of a circle segment and the same shape, wherein the wall arch ( 15 ) and the wall arch (W) each offset slightly inwards is arranged vertically above one another. Hood according to claim 6, characterized in that on the inside of the corner region ( 4 ) bevel ( 14 ) with on the outside of the intermediate part ( 11 ) formed claw-shaped formation ( 17 ) corresponds. Hood according to claim 1, characterized in that the external thread ( 21 ) at the top ( 20 ) of the header ( 19 ) and the internal thread ( 22 ) on the lid ( 23 ) are formed of several divided threads. Hood according to claim 1, characterized in that between cover ( 23 ) and upper edge ( 20 ) of the header ( 19 ) a sealing washer ( 24 ) made of plastic, preferably polyethylene, is arranged. Hood according to claim 1 and 11, characterized in that the lid ( 23 ) a circumferential wall ( 27 ) with an upper edge ( 28 ), on which a sealing lip ( 28 ), which as soon as the lid ( 23 ) reaches its closed position, against an outer circumferential shoulder shoulder ( 31 ) of the head part ( 19 ) seals. Hood according to claim 1 and 12, characterized in that the wall ( 27 ) on the outside with a knurling ( 30 ) for facilitating the application of the lid ( 23 ) on the upper edge ( 20 ) of the header ( 19 ) is provided. Hood according to claim 1, characterized in that the space ( 25 ) with a coolant () from a mixture of 76 to 84 wt .-% water, 4 to 6 wt .-% thickener, 9 to 12 wt .-% glycol, 1.5 to 2.5 wt .-% food coloring and 2 to 4 wt .-% bittering agent is filled. Hood according to claim 1, characterized in that the adhesive for bonding from a two-component acrylate adhesive consists.