EP0348629B1 - Double-walled refrigerator container with a foamed isolation - Google Patents
Double-walled refrigerator container with a foamed isolation Download PDFInfo
- Publication number
- EP0348629B1 EP0348629B1 EP89107521A EP89107521A EP0348629B1 EP 0348629 B1 EP0348629 B1 EP 0348629B1 EP 89107521 A EP89107521 A EP 89107521A EP 89107521 A EP89107521 A EP 89107521A EP 0348629 B1 EP0348629 B1 EP 0348629B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- double
- base plate
- insulation
- walled
- shaped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/02—Wall construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/02—Wall construction
- B65D90/06—Coverings, e.g. for insulating purposes
Definitions
- the invention relates to a double-walled refrigerated container with foamed-in insulation, with a double-walled base with foamed-in insulation, the upper bottom wall of which consists of a base plate with longitudinal, cross-sectionally T-shaped supports, the upper flanges of which are arranged with longitudinal gaps and form a loading area.
- the base plates with the T-shaped supports are generally used as extruded profiles, e.g. made of aluminum, in one piece, and the individual profiles are welded to a waterproof floor.
- the longitudinal chambers between the webs of the T-shaped supports enable the unhindered return flow of the cooling air under the load to the cooling unit when the vehicle is loaded.
- the object of the invention is seen in improving the base plate so that the floor can also withstand high impact-like, local loads.
- the base plate is corrugated, the wave crests are at the location of the T-shaped supports and that the base plate is clawed by anchoring with the insulation.
- the waveform of the base plate allows the vertical leg of the T-shaped supports to be made very short while maintaining sufficiently large channels for the air flow. This significantly increases the resistance to one-sided loads on the outer edges of the flanges.
- the wave-shaped design of the base plate, with the wave crest facing the T-shaped support stiffens the base plate at the point of introduction of the force and thus even with a concentrated local load, an even introduction into the insulation, which increases the risk of critical overloading of the connection point between the base plate and the insulation is avoided.
- connection area due to the waveform of the base plate and the resulting positive fit with regard to shear stress in the transverse direction has a positive effect on the security of the bond.
- the anchors support this effect and are also effective against lifting the base plate vertically from the insulation. Due to the laterally beveled surfaces of the base plate, which form the channels, the advantage is additionally achieved that during cleaning measures, the cleaning liquid with the dirt residues is directed into the clearly visible central area of the channel, the outflow rate even with small amounts of liquid due to the narrowing of the channel bed remains high at the bottom and dirt residues are effectively taken away. This is a significant improvement over the known floors with the dreaded corner of dirt right at the foot of the T-shaped supports.
- the invention can be advantageously configured as follows.
- a favorable form of the wave crests in cross-section is that of an isosceles triangle, at the apex of which the T-shaped support stands.
- the same legs expediently enclose an approximately right angle. Due to the oblique transitions of the angled legs into the lower surface of the base plate, the buckling height of the web of the T-shaped support is reduced, and a higher buckling stiffness can be achieved with a reduced use of material compared to the flat base plate according to the prior art.
- FIG. 1 An exemplary embodiment of the invention is explained below with reference to a drawing.
- the drawing shows the lower left corner area of a refrigerated container in cross section.
- the double-walled refrigerated container has foamed-in insulation 1. Its bottom has a base plate 2 with longitudinal supports T-shaped in cross section 3, the upper flanges 4 of which form the loading area with longitudinal spaces 5.
- the base plate 2 is designed corrugated, the waves being isosceles triangles with an approximately right upper angle on which the T-shaped supports 3 stand.
- 2 anchors 7 extend into the insulation, which are designed as longitudinal, T-shaped webs.
- the complete, corrugated base plate 2 with the supports 3 with flanges 4 and the anchors 7 has been produced as an extruded profile, the length at least corresponding to the container length and the width chosen as large as possible within the scope of the production possibility.
- the extruded base plates have been welded together with weld seams 8.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Refrigerator Housings (AREA)
Description
Die Erfindung betrifft einen doppelwandigen Kühlcontainer mit einer eingeschäumten Isolierung, mit einem doppelwandigen Boden mit eingeschäumter Isolierung, dessen obere Bodenwand aus einer Grundplatte mit längsverlaufenden, im Querschnitt T-förmigen Stützen besteht, deren obere Flansche mit längsverlaufenden Zwischenräumen angeordnet sind und eine Ladefläche bilden. Die Grundplatten mit den T-förmigen Stützen werden im allgemeinen als Strangpreßprofile, z.B. aus Aluminium, einstückig hergestellt, und die einzelnen Profile werden zu einem wasserdichten Boden verschweißt. Die längsverlaufenden Kammern zwischen den Stegen der T-förmigen Stützen ermöglichen bei beladenem Fahrzeug den ungehinderten Rückfluß der Kühlluft unter der Ladung zum Kühlgerät hin. Nachteile bei der bekannten Ausführung (DE-A-29 39 887), bei der die Grundplatte eben ausgeführt ist, bestehen darin, daß einseitige, stoßartige Belastungen an den Flanschen, insbesondere durch die Räder der Beladefahrzeuge, zu einem Verbiegen der Stege führen können, wenn sie nicht stabil genug ausgelegt sind, und auch dazu, daß der Verbund zwischen der Grundplatte und der Isolierung den Beanspruchungen nicht standhält, wodurch die Steifigkeit des Bodens des Containers sehr stark vermindert wird.The invention relates to a double-walled refrigerated container with foamed-in insulation, with a double-walled base with foamed-in insulation, the upper bottom wall of which consists of a base plate with longitudinal, cross-sectionally T-shaped supports, the upper flanges of which are arranged with longitudinal gaps and form a loading area. The base plates with the T-shaped supports are generally used as extruded profiles, e.g. made of aluminum, in one piece, and the individual profiles are welded to a waterproof floor. The longitudinal chambers between the webs of the T-shaped supports enable the unhindered return flow of the cooling air under the load to the cooling unit when the vehicle is loaded. Disadvantages with the known design (DE-A-29 39 887), in which the base plate is flat, consist in the fact that one-sided, impact-like loads on the flanges, in particular by the wheels of the loading vehicles, can lead to bending of the webs. if they are not designed stable enough, and also that the bond between the base plate and the insulation does not withstand the stresses, which greatly reduces the rigidity of the bottom of the container.
Ausgehend von diesem Stand der Technik wird die Aufgabe der Erfindung darin gesehen, die Grundplatte so zu verbessern, daß der Boden auch hohe stoßartige, örtliche Belastungen aushält.Based on this prior art, the object of the invention is seen in improving the base plate so that the floor can also withstand high impact-like, local loads.
Diese Aufgabe wird bei einem Container der eingangs genannten Gattung dadurch gelöst, daß die Grundplatte gewellt ist, die Wellenberge sich am Ort der T-förmigen Stützen befinden und daß die Grundplatte sich durch Verankerungen mit der Isolierung verkrallt. Die Wellenform der Grundplatte ermöglicht es bei Beibehaltung genügend großer Kanäle für den Luftdurchsatz, den senkrechten Schenkel der T-förmigen Stützen sehr kurz auszubilden. Dadurch wird die Widerstandsfähigkeit gegen einseitige Belastungen der äußeren Kanten der Flansche wesentlich vergrößert. Die wellenförmige Ausbildung der Grundplatte, wobei der Wellenberg der T-förmigen Stütze zugewandt ist, bewirkt eine Versteifung des Bodenblechs an den Einleitungsstellen der Kraft und dadurch auch bei einer konzentrierten örtlichen Belastung eine gleichmäßige Einleitung in die Isolierung, wodurch die Gefahr einer kritischen Überlastung der Verbundstelle zwischen der Grundplatte und der Isolierung vermieden wird. Die Vergrößerung dieser Verbindungsfläche durch die Wellenform der Grundplatte und die dadurch erreichte Formschlüssigkeit hinsichtlich Schubbeanspruchung in Querrichtung wirkt dabei fördernd für die Sicherheit des Verbundes. Die Verankerungen unterstützen diese Wirkung und sind darüber hinaus auch noch gegen ein senkrechtes Abheben der Grundplatte von der Isolierung wirksam. Durch die seitlich abgeschrägten Flächen der Grundplatte, die die Kanäle bilden, wird zusätzlich der Vorteil erreicht, daß bei Reinigungsmaßnahmen die Reinigungsflüssigkeit mit den Schmutzresten in den gut einsehbaren Mittelbereich des Kanals geleitet wird, wobei die Abfließgeschwindigkeit auch bei geringen Flüssigkeitsmengen wegen der Verengung des Kanalbetts nach unten noch hoch bleibt und Schmutzreste wirkungsvoll mitgenommen werden. Dies ist eine wesentliche Verbesserung gegenüber den bekannten Böden mit der gefürchteten Dreckecke unmittelbar am Fuß der T-förmigen Stützen.This object is achieved in a container of the type mentioned in that the base plate is corrugated, the wave crests are at the location of the T-shaped supports and that the base plate is clawed by anchoring with the insulation. The waveform of the base plate allows the vertical leg of the T-shaped supports to be made very short while maintaining sufficiently large channels for the air flow. This significantly increases the resistance to one-sided loads on the outer edges of the flanges. The wave-shaped design of the base plate, with the wave crest facing the T-shaped support, stiffens the base plate at the point of introduction of the force and thus even with a concentrated local load, an even introduction into the insulation, which increases the risk of critical overloading of the connection point between the base plate and the insulation is avoided. The enlargement of this connection area due to the waveform of the base plate and the resulting positive fit with regard to shear stress in the transverse direction has a positive effect on the security of the bond. The anchors support this effect and are also effective against lifting the base plate vertically from the insulation. Due to the laterally beveled surfaces of the base plate, which form the channels, the advantage is additionally achieved that during cleaning measures, the cleaning liquid with the dirt residues is directed into the clearly visible central area of the channel, the outflow rate even with small amounts of liquid due to the narrowing of the channel bed remains high at the bottom and dirt residues are effectively taken away. This is a significant improvement over the known floors with the dreaded corner of dirt right at the foot of the T-shaped supports.
Im einzelnen kann die Erfindung wie folgt vorteilhaft ausgestaltet sein.In particular, the invention can be advantageously configured as follows.
Eine günstige Form der Wellenberge im Querschnitt ist die eines gleichschenkligen Dreiecks, auf deren Scheitelpunkt die T-förmige Stütze steht. Zweckmäßig schließen die gleichen Schenkel einen annähernd rechten Winkel ein. Durch die schrägen Übergänge der Winkelschenkel in die untere Fläche der Grundplatte verkleinert sich die Knickhöhe des Steges der T-förmigen Stütze, und es ist bei verkleinertem Materialeinsatz gegenüber den ebenen Grundplatte nach dem Stand der Technik eine höhere Ausknicksteifigkeit zu erzielen.A favorable form of the wave crests in cross-section is that of an isosceles triangle, at the apex of which the T-shaped support stands. The same legs expediently enclose an approximately right angle. Due to the oblique transitions of the angled legs into the lower surface of the base plate, the buckling height of the web of the T-shaped support is reduced, and a higher buckling stiffness can be achieved with a reduced use of material compared to the flat base plate according to the prior art.
Im folgenden wird anhand einer Zeichnung ein Ausführungsbeispiel der Erfindung erläutert. Die Zeichnung zeigt den unteren, linken Eckbereich eines Kühlcontainers im Querschnitt.An exemplary embodiment of the invention is explained below with reference to a drawing. The drawing shows the lower left corner area of a refrigerated container in cross section.
Der doppelwandige Kühlcontainer weist eine eingeschäumte Isolierung 1 auf. Sein Boden hat eine Grundplatte 2 mit längsverlaufenden, im Querschnitt T-förmigen Stützen 3, deren obere Flansche 4 die Ladefläche mit längsverlaufenden Zwischenräumen 5 bilden. Die Grundplatte 2 ist gewellt ausgeführt, wobei die Wellen gleichschenklige Dreiecke mit annähernd rechtem oberen Winkel sind, auf denen die T-förmigen Stützen 3 stehen. Nach unten erstrecken sich an der Grundplatte 2 Verankerungen 7 in die Isolierung, die als längsdurchlaufende, T-förmige Stege ausgebildet sind.The double-walled refrigerated container has foamed-in
Die vollständige, gewellte Grundplatte 2 mit den Stützen 3 mit Flanschen 4 und den Verankerungen 7 ist als Strangpreßprofil hergestellt worden, wobei die Länge zumindest der Containerlänge entspricht und die Breite im Rahmen der Fertigungsmöglichkeit möglichst groß gewählt wurde. Mit Schweißnähten 8 sind die stranggepreßten Grundplatten zusammengeschweißt worden. Bei Fertigung des Containers sind die Metallteile, nämlich die Grundplatte 2, das äußere Bodenblech 9, Träger 10, die inneren Wandteile und äußeren Wandteile 12 zusammengesetzt, von einer Druckform gestützt und ausgeschäumt worden.The complete,
- 11
- Isolierunginsulation
- 22nd
- GrundplatteBase plate
- 33rd
- Stützesupport
- 44th
- Flanschflange
- 55
- ZwischenraumSpace
- 66
- WellenbergWellenberg
- 77
- Verankerunganchoring
- 88th
- SchweißnahtWeld
- 99
- äußeres Bodenblechouter floor panel
- 1010th
- Trägercarrier
- 1111
- Wandteil innenWall part inside
- 1212
- Wandteil außenWall part outside
Claims (4)
- Double-walled cooling container with a foamed-in insulation, a double-walled base with foamed-in insulation (1), the upper base wall of which consists of a base plate (2) with longitudinally extending supports which are T-shaped in cross-section and the upper flanges (4) of which form the load surface with longitudinally extending intermediate spaces (5), characterised thereby that the base plate (2) is corrugated, the corrugation crests (6) are disposed at the location of the T-shaped supports (3) and that the base plate (2) is detented with the insulation (1) by anchors (7).
- Double-walled cooling container according to claim 1, characterised thereby that the corrugation crests (6) are constructed as equal-sided triangles, on the apices of which stand the T-shaped supports (3).
- Double-walled cooling container according to claim 2, characterised thereby that the equal-sided triangle sides include an approximate right angle.
- Double-walled cooling container according to one of the above claims, characterised thereby that downwardly extending anchors (7) are constructed as T-shaped webs.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8808197U | 1988-06-25 | ||
| DE8808197U DE8808197U1 (en) | 1988-06-25 | 1988-06-25 | Double-walled refrigerated container with foamed insulation |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0348629A2 EP0348629A2 (en) | 1990-01-03 |
| EP0348629A3 EP0348629A3 (en) | 1990-11-22 |
| EP0348629B1 true EP0348629B1 (en) | 1993-06-02 |
Family
ID=6825362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89107521A Expired - Lifetime EP0348629B1 (en) | 1988-06-25 | 1989-04-26 | Double-walled refrigerator container with a foamed isolation |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0348629B1 (en) |
| DE (2) | DE8808197U1 (en) |
| PL (1) | PL160629B1 (en) |
| YU (1) | YU97689A (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8808197U1 (en) * | 1988-06-25 | 1989-10-26 | Umformtechnik Hausach GmbH, 7613 Hausach | Double-walled refrigerated container with foamed insulation |
| DE4214058A1 (en) * | 1992-04-29 | 1993-11-04 | Hausach Umformtechnik | SECURITY CONTAINERS |
| DE4241268A1 (en) * | 1992-12-08 | 1994-06-09 | Graaff Gmbh | Join between bottom of side wall and edge of base in large containers - in prodn. metal faces of both panels are joined to form intermediate space at angle and this is then filled with rigid foam |
| DK134793D0 (en) * | 1993-12-02 | 1993-12-02 | Maersk Container Ind As | COOLING CONTAINER |
| DE9407877U1 (en) * | 1994-05-16 | 1994-07-14 | Stahlbau Niesky GmbH, 02906 Niesky | Transportable cold room |
| DE4422225C2 (en) * | 1994-06-24 | 2003-04-17 | Elze Waggonbau Gmbh & Co Kg | Corner connection for containers used to transport goods |
| DE102004002945A1 (en) * | 2004-01-21 | 2005-08-11 | Dennert Poraver Gmbh | Fire protection container, with side walls, a cover and/or base, including a framework of support stays useful in the chemical and pharmaceutical industries for storage of potentially explosion and fire risk materials |
| DE102010050891A1 (en) * | 2010-11-10 | 2012-05-10 | Burg Silvergreen Gmbh | Heat insulating floor construction |
| CN103253470A (en) * | 2013-05-09 | 2013-08-21 | 胜狮货柜管理(上海)有限公司 | Refrigeration container, refrigeration container side wall plate and inner wall plate of refrigeration container side wall plate |
| CN105644984A (en) * | 2016-03-17 | 2016-06-08 | 广东富华机械装备制造有限公司 | T floor capable of preventing welding seam from breaking |
| DE102017107740A1 (en) * | 2017-04-10 | 2018-10-11 | Kiesling Fahrzeugbau Gmbh | Sidewall element for a refrigerated vehicle body and refrigerated vehicle body |
| DE202023000101U1 (en) | 2023-01-13 | 2023-01-27 | Ifl Ingenieurbüro Für Leichtbau Gmbh & Co Kg | Arrangement for insulating and tempering at least one area of a wall, a floor and/or a ceiling of a refrigerated container |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6916329A (en) * | 1969-10-29 | 1971-05-04 | Foamed plastics insulation panels | |
| ZA715463B (en) * | 1970-08-17 | 1973-03-28 | Dover Roller Shutters Ltd | Improvements in insulated containers |
| AU5760173A (en) * | 1972-09-05 | 1975-01-09 | Frank Edward Mack | Thermal insulation |
| NO138636C (en) * | 1976-08-23 | 1978-10-11 | Moss Rosenberg Verft As | INSULATION BY INSULATED TANK. |
| US4269323A (en) * | 1978-02-03 | 1981-05-26 | Nippon Sanso Kabushiki Kaisha | Heat insulated tank |
| DE2939887C2 (en) * | 1979-10-02 | 1986-03-06 | Thyssen Industrie Ag, 4300 Essen | Reefer container |
| DE8113685U1 (en) * | 1981-05-09 | 1981-09-10 | Thyssen Industrie Ag, 4300 Essen | COOLING CONTAINER |
| JPS60213604A (en) * | 1984-04-06 | 1985-10-25 | Kawamoto Kogyo Kk | Shape of wear-resisting lagging material |
| DE8808197U1 (en) * | 1988-06-25 | 1989-10-26 | Umformtechnik Hausach GmbH, 7613 Hausach | Double-walled refrigerated container with foamed insulation |
-
1988
- 1988-06-25 DE DE8808197U patent/DE8808197U1/en not_active Expired
-
1989
- 1989-04-26 DE DE8989107521T patent/DE58904548D1/en not_active Expired - Fee Related
- 1989-04-26 EP EP89107521A patent/EP0348629B1/en not_active Expired - Lifetime
- 1989-05-11 YU YU97689A patent/YU97689A/en unknown
- 1989-06-08 PL PL1989279855A patent/PL160629B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL160629B1 (en) | 1993-04-30 |
| EP0348629A2 (en) | 1990-01-03 |
| YU97689A (en) | 1994-01-20 |
| EP0348629A3 (en) | 1990-11-22 |
| DE8808197U1 (en) | 1989-10-26 |
| DE58904548D1 (en) | 1993-07-08 |
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