EP0120367B1 - Construction element to make a rectangular container - Google Patents
Construction element to make a rectangular container Download PDFInfo
- Publication number
- EP0120367B1 EP0120367B1 EP84102493A EP84102493A EP0120367B1 EP 0120367 B1 EP0120367 B1 EP 0120367B1 EP 84102493 A EP84102493 A EP 84102493A EP 84102493 A EP84102493 A EP 84102493A EP 0120367 B1 EP0120367 B1 EP 0120367B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shell portion
- shell
- profiling
- case
- glued
- 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
Links
- 238000010276 construction Methods 0.000 title claims 2
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000000112 cooling gas Substances 0.000 claims description 4
- 239000012815 thermoplastic material Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B31/00—Service or tea tables, trolleys, or wagons
- A47B31/06—Service or tea tables, trolleys, or wagons adapted to the use in vehicles
-
- 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
- B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
- B65D11/10—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material of polygonal cross-section and all parts being permanently connected to each other
Definitions
- the invention relates to a component for producing a cuboid housing made of plastic for a serving trolley, in particular a serving trolley for aircraft.
- housings and container parts in a suitable tool, e.g. to be made from plastics such as polystyrene or polyurethane using the foaming technique or the spray technique. Furniture and device parts, as well as housings for serving trolleys, are manufactured in a mold using injection molding machines. The costs of the molding tools play a not inconsiderable effort. If several sizes of one device type are to be manufactured, corresponding different molding tools must be available.
- US-A-3905 668 shows a component for producing a cuboid housing, which comprises half the housing cover, half the housing base, half of the two side walls and a complete end wall.
- thermoplastic plastic described in DE-B-1055 802 is not suitable for large components, such as the housing of a serving trolley.
- the invention has for its object to manufacture the container for a serving trolley, in particular a serving trolley for airplanes - from plastic with little outlay on tooling costs and yet to maintain the required strength.
- the housing consists of two identical shell parts, whereby the uniform shell part is designed so that on the one hand it can be connected to a body with the same shell part, but on the other hand it is also possible to halve one shell part and the two parts obtained into one Join the half-size body.
- the necessary strength of the connection is made possible by the fact that the large areas to be joined together have a profiling which, on one half of the shell, is negatively counter to the profiling of the other halves of the shell.
- the housing 1 consists of the side wall 1, half the housing cover 2 and half the housing base 3. In addition, half partitions for the upper drawer 4 and a central stiffening wall 5th be provided.
- the housing cover 2 is provided with a raised peripheral edge 6, so that a secure storage space is created. Lateral support and guide strips 7 for trays to be inserted as well as cooling channels 8 for the cooling gas flowing out of the upper cooling compartment are formed in the side wall 1.
- Such a component, which forms a housing half is made of a thermoplastic with very high impact strength according to the so-called TSG process. In this special process, the thermoplastic material to be sprayed is additionally mixed with a blowing agent for better mold filling and surface quality.
- the plastic is completely colored with the desired color. This creates a practically indestructible container even in rough use, which still has its external appearance even after a long time.
- Two such shell parts produced in the same molding tool are permanently bonded to one another to form a heavy-duty housing by appropriately designing the connection points by joining them in mirror image.
- 3a and 3b show this in two examples in which the ceiling area is designed differently.
- An identical part b is added to part a in mirror image.
- the gluing point of the abutting transverse walls can be formed according to FIG. 2.
- the Z-shaped profile ensures that the two shell parts fit together precisely because their tips slide into a counter-groove.
- the component according to the invention is also symmetrically divided into two equal halves in relation to a central plane E (indicated by a line) that runs through the housing cover, side wall and housing base. If the shell part is separated along this plane, two parts are obtained which can likewise be joined together to form a housing, albeit of half the size, as illustrated in FIG. 4. The later separation can be facilitated by inserting strips in the area of the separation point for the molding tool.
- connection points (Fig. 2) is formed on one half of the shell part negatively congruent to the profile of the other half of the shell part so that the shell parts, be it the whole or the halved shell parts can be put together in mirror image.
- the side cooling gas channels 8 starting from the upper cooling compartment are arranged in the interior of the side wall 1 such that after the separation of the shell divider at least one cooling gas channel 8 remains at both ends of the shell part halves, as indicated in FIG. 1.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
Die Erfindung betrifft ein Bauelement zur Herstellung eines quaderförmigen Gehäuses aus Kunststoff für einen Servierwagen, insbesondere einen Servierwagen für Flugzeuge.The invention relates to a component for producing a cuboid housing made of plastic for a serving trolley, in particular a serving trolley for aircraft.
Es ist heute möglich geworden, Gehäuse und Behälterteile in einem entsprechenden Werkzeug z.B. nach der Ausschäumtechnik oder der Spritztechnik aus Kunststoffen wie Polystyrol oder Polyurethan herzustellen. Möbel und Geräteteile, und auch Gehäuse von Servierwagen werden in einem Formwerkzeug mittels Spritzgießmaschinen gefertigt. Einen nicht unerheblichen Aufwand spielen dabei die Kosten der Formwerkzeuge. Wenn von einem Gerätetyp mehrere Größen gefertigt werden sollen, müssen entsprechende verschiedene Formwerkzeuge zur Verfügung stehen.It has now become possible to have housings and container parts in a suitable tool, e.g. to be made from plastics such as polystyrene or polyurethane using the foaming technique or the spray technique. Furniture and device parts, as well as housings for serving trolleys, are manufactured in a mold using injection molding machines. The costs of the molding tools play a not inconsiderable effort. If several sizes of one device type are to be manufactured, corresponding different molding tools must be available.
Die US-A-3905 668 zeigt ein Bauelement zur Herstellung eines quaderförmigen Gehäuses, welches jeweils die halbe Gehäusedecke, den halben Gehäuseboden, die Hälfte der beiden Seitenwände und eine vollständige Stirnwand umfaßt. Die jeweils eine Schrankhälfte bildenden, gegeneinander fahrbaren und miteinander verriegelbaren Bauelemente, sind in der üblichen Weise aus ebenen Wandteilen zusammengesetzt. Dabei stellt sich die Frage nicht, einen Korpus in einem Formwerkzeug als Einheit aus Kunststoff zu spritzen.US-A-3905 668 shows a component for producing a cuboid housing, which comprises half the housing cover, half the housing base, half of the two side walls and a complete end wall. The components, each of which forms a cabinet half, can be moved against one another and can be locked together, are composed in the usual way of flat wall parts. The question does not arise here of injecting a body into a molding tool as a unit made of plastic.
Das in der DE-B-1055 802 beschriebene Herstellungsverfahren für Flächen aus thermoplastischen Kunststoff ist für große Bauteile, wie das Gehäuse eines Servierwagens, nicht geeignet. Ein Formwerkzeug, welches die Herstellung der beiden Behälterhälften in einem Arbeitsgang und anschließendes einfaches Aufeinander-klappen ermöglichen sollte, wäre viel zu aufwendig.The manufacturing process for surfaces made of thermoplastic plastic described in DE-B-1055 802 is not suitable for large components, such as the housing of a serving trolley. A molding tool, which should enable the production of the two container halves in one work step and then simply fold them up, would be far too complex.
Für die Herstellung eines Schutzhelmes gemäß der GB-A-2021470 ist für jede Helmhälfte ein eigenes Formwerkzeug notwendig.For the manufacture of a protective helmet according to GB-A-2021470, a separate mold is required for each helmet half.
Der Erfindung liegt die Aufgabe zugrunde, den Behälter für einen Servierwagen, insbesondere einen Servierwagen für Flugzeuge - aus Kunststoff mit geringem Aufwand an Werkzeugkosten zu fertigen und dabei doch die geforderte Festigkeit zu wahren.The invention has for its object to manufacture the container for a serving trolley, in particular a serving trolley for airplanes - from plastic with little outlay on tooling costs and yet to maintain the required strength.
Diese Aufgabe wird durch die in den Ansprüchen angegebenen Merkmale gelöst.This object is achieved by the features specified in the claims.
Das Gehäuse setzt sich aus zwei identischen Schalenteilen zusammen, wobei das einheitliche Schalenteil so ausgebildet ist, daß es einerseits mit dem gleich SChalenteil zu einem Korpus verbunden werden kann, es aber andererseits auch möglich ist, ein Schalenteil zu halbieren und die beiden erhaltenen Teile zu einem Korpus halber Größe zusammenzufügen. Die notwendige Festigkeit der Verbindung wird dabei ermöglicht, indem die aneinander zu fügenden Großflächen eine Profilierung aufweisen, welche auf der einen SChalenteilhälfte, negativ konkruent zu der Profilierung der anderen Schalenteilhälften ist.The housing consists of two identical shell parts, whereby the uniform shell part is designed so that on the one hand it can be connected to a body with the same shell part, but on the other hand it is also possible to halve one shell part and the two parts obtained into one Join the half-size body. The necessary strength of the connection is made possible by the fact that the large areas to be joined together have a profiling which, on one half of the shell, is negatively counter to the profiling of the other halves of the shell.
In der Zeichnung ist ein Ausführungsbeispiel der Neuerung dargestellt.In the drawing, an embodiment of the innovation is shown.
Es zeigen:
- Fig. 1
- das erfindungsgemäße Bauelement in perspektivischer Sicht mit angedeuteter Trennstelle.
- Fig. 2
- die Profilierung der Verbindungsstelle in größerem Maßstab gemäß Schnitt II-II der Fig. 4.
- Fig. 3a + 3b
- ein aus zwei Schalenteilen zusammengesetztes Gehäuse in unterschiedlicher Ausführung.
- Fig. 4
- ein aus einem halbierten Bauelement zusammengesetztes Gehäuse.
- Fig. 1
- the component according to the invention in a perspective view with indicated separation point.
- Fig. 2
- the profiling of the connection point on a larger scale according to section II-II of FIG. 4th
- 3a + 3b
- a housing composed of two shell parts in different designs.
- Fig. 4
- a housing composed of a halved component.
Das Bauelement nach Fig. 1 besteht aus der Seitenwand 1, der halben Gehäusedecke 2 sowie dem halben Gehäuseboden 3. Zusätzlich können halbe Zwischenwände für das obere Schubfach 4 und eine mittlere Versteifungswand 5 vorgesehen sein. Die Gehäusedecke 2 ist mit einem erhöhten Umlaufrand 6 versehen, so daß eine gesicherte Abstellfläche entsteht. In der Seitenwand 1 sind seitliche Auflagen- und Führungsleisten 7 für einzuschiebende Tabletts sowie Kühlkanäle 8 für das aus dem oberen Kühlfach abströmende Kühlgas eingeformt. Ein solches, die eine Gehäusehälfte bildendes Bauelement, ist aus einem thermoplastischen Kunststoff mit sehr hoher Schlagzänigkeit nach dem sogenannten TSG-Verfahren hergestellt. Bei diesem Spezialverfahren wird das thermoplastische Spritzgut zusätzlich mit einem Treibmittel zur besseren Formfüllung und Oberflächenqualität vermischt.1 consists of the
Der Kunststoff ist vollständig mit der gewünschten Farbe durchgefärbt. So entsteht auch bei rauhem Einsatz ein praktisch unverwüstlicher Behälter, welcher auch nach langer Zeit sein äußeres Aussehen noch aufweist.The plastic is completely colored with the desired color. This creates a practically indestructible container even in rough use, which still has its external appearance even after a long time.
Zwei solcher in demselben Formwerkzeug hergestellter Schalenteile werden dauerhaft zu einem hochbelastbaren Gehäuse durch entsprechende Ausbildung der Verbindungsstellen miteinander verklebt, indem man sie spiegelbildlich zusammenfügt. Fig. 3a und 3b zeigt dies an zwei Beispielen, bei denen der Deckenbereich unterschiedlich ausgeführt ist. Dem Teil a ist spiegelbildlich ein identisches Teil b hinzugefügt. Die Klebestelle der aneinanderstoßenden Querwände kann gemäß Fig. 2 ausgebildet werden. Die Z-förmige Profilierung gewährleistet eine maßgenaue Zusammenfügung der beiden Schalenteile, denn sie schieben sich mit ihrer Spitze jeweils in eine Gegennut. Durch entsprechende Auswahl des Klebers und seitlichen Druck in Pfeilrichtung entsteht eine dauerfeste Verbindung.Two such shell parts produced in the same molding tool are permanently bonded to one another to form a heavy-duty housing by appropriately designing the connection points by joining them in mirror image. 3a and 3b show this in two examples in which the ceiling area is designed differently. An identical part b is added to part a in mirror image. The gluing point of the abutting transverse walls can be formed according to FIG. 2. The Z-shaped profile ensures that the two shell parts fit together precisely because their tips slide into a counter-groove. By selecting the appropriate adhesive and applying lateral pressure in the direction of the arrow, a permanent connection is created.
Das erfindungsgemäße Bauelement ist außerdem symmetrisch zu einer mittleren, durch Gehäusedecke, Seitenwand und Gehäuseboden verlaufende Ebene E (liniert angedeutet) in zwei gleiche Hälften eingeteilt. Bei einer Trennung des Schalenteiles entlang dieser Ebene erhält man zwei Teile die ebenfalls zu einem Gehäuse -allerdings von halber Größe - zusammengefügt werden können, wie Fig. 4 veranschaulicht. Durch Einlegeleisten im Bereich der Trennstelle für das Formwerkzeug kann die spätere Trennung erleichtert werden.The component according to the invention is also symmetrically divided into two equal halves in relation to a central plane E (indicated by a line) that runs through the housing cover, side wall and housing base. If the shell part is separated along this plane, two parts are obtained which can likewise be joined together to form a housing, albeit of half the size, as illustrated in FIG. 4. The later separation can be facilitated by inserting strips in the area of the separation point for the molding tool.
Die Profilierung der Verbindungsstellen (Fig. 2) ist auf der einen Hälfte des Schalenteiles negativ kongruent zu der Profilierung der anderen Hälfte des Schalenteils ausgebildet so daß sich die Schalenteile, seien es die ganzen oder die halbierten Schalenteile spiegelbildlich zusammenfügen lassen. Aus diesem Grunde sind auch die vom oberen Kühlfach ausgehenden seitlichen Kühlgaskanäle 8 im inneren der Seitenwand 1 so angeordnet, daß nach der Trennung des Schalenteilers zu beiden Enden der Schalenteilhälften mindestens jeweils ein Kühlgaskanal 8 verbleibt, wie dies in Fig. 1 angedeutet ist.The profiling of the connection points (Fig. 2) is formed on one half of the shell part negatively congruent to the profile of the other half of the shell part so that the shell parts, be it the whole or the halved shell parts can be put together in mirror image. For this reason, the side
Claims (5)
- A component for the construction of a square case of plastic for a service cart, in particular a service cart for aircrafts,
characterized by thata) the said component is composed of a shell portion forming one side wall (1) and half the top (2) and half the bottom (3) of half the case, said shell portion being moulded of thermoplastic material as one piece in a mould,b) the said shell portion is divided symmetrically to a central plae of symmetry (E) extending through the top (2), the side wall (1), and the bottom (3) of the case, into two identical halves of the shell portion,c) the abutting ends of the two faces of the top and bottom halves of the case to be glued during the assembly of two shell portions comprise a profiling being negatively congruent, on the one shell portion half, to the profiling on the other shell portion half. - A component according to claim 1,
characterized by that the profiling of the two faces of the two shell portions to be glued is Z-shaped. - A component according to claims 1 and 2,
characterized by that the Z-shaped profiling of the faces to be glued is glued such that the tip of the one shell portion is introduced into a counter groove of the other shell portion. - A component according to one or several of claims 1 to 3,
characterized by that at least one cross wall (4, 5) extends parallely to the top (2) of the case. - A component according to one of claims 1 to 4,
characterized by that the side wall (1) of each shell portion half is provided with at least two vertical cooling gas channels (8).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19838309164U DE8309164U1 (en) | 1983-03-28 | 1983-03-28 | COMPONENT FOR PRODUCING A SQUARE SHAPED HOUSING |
| DE8309164U | 1983-03-28 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0120367A2 EP0120367A2 (en) | 1984-10-03 |
| EP0120367A3 EP0120367A3 (en) | 1988-07-20 |
| EP0120367B1 true EP0120367B1 (en) | 1991-09-11 |
Family
ID=6751698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP84102493A Expired - Lifetime EP0120367B1 (en) | 1983-03-28 | 1984-03-08 | Construction element to make a rectangular container |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4616754A (en) |
| EP (1) | EP0120367B1 (en) |
| DE (2) | DE8309164U1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4848608A (en) * | 1987-10-09 | 1989-07-18 | Grumman Aerospace Corporation | Expandable racking system for trays or the like |
| US5016948A (en) * | 1989-02-02 | 1991-05-21 | Intermetro Industries Corporation | Modular utility cart |
| US4910866A (en) * | 1989-02-21 | 1990-03-27 | Micron Technology, Inc. | Method of manufacturing a series of leadframe strip carriers having fixed external dimensions and varied internal dimensions using a common mold |
| US6419098B1 (en) * | 1995-02-10 | 2002-07-16 | Donald M. Hall | Nestable and/or liftable rack |
| US20020162813A1 (en) * | 1997-04-25 | 2002-11-07 | Hall Donald M. | V-shaped nestable tray rack |
| US7419063B1 (en) | 1996-04-26 | 2008-09-02 | M & E Manufacturing Company, Inc. | Nestable and liftable oven rack |
| US6102216A (en) * | 1999-03-11 | 2000-08-15 | Frank; Monty S | Attire organizer |
| GB9911004D0 (en) * | 1999-05-13 | 1999-07-14 | Stalley Francis E | Plane clearing trolley (P.E.T.) |
| WO2004043829A2 (en) * | 2002-11-05 | 2004-05-27 | Rynel, Inc. | Trays for growth plugs, and methods of producing them |
| NL2011754C2 (en) * | 2013-11-07 | 2015-05-11 | Gils Stephanus Johannes Van | Galley container. |
| US10660982B2 (en) * | 2014-04-10 | 2020-05-26 | Gratzup Corp. | Container for sterilising objects and sterilising system comprising said container |
| US10034806B1 (en) * | 2017-05-24 | 2018-07-31 | Samuel Greenhalgh, Sr. | Over-bed table organizer |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US785591A (en) * | 1904-11-22 | 1905-03-21 | John Gabriel Conez | Cabinet for pies. |
| US1342269A (en) * | 1919-10-08 | 1920-06-01 | Irving N Stewart | Portable wardrobe |
| DE1055802B (en) * | 1956-06-28 | 1959-04-23 | Bayerische Fichtenpechsiederei | Process for the production of erectable containers from an organic thermoplastic material from two container halves that belong together |
| US2930487A (en) * | 1957-05-15 | 1960-03-29 | Dart Mfg Company | Wall mountable shelf unit |
| US3298763A (en) * | 1965-02-08 | 1967-01-17 | Domenico Joseph Di | Device for dispensing cylindrical articles |
| US3905662A (en) * | 1974-05-28 | 1975-09-16 | Stryker Corp | Combined cabinet and table |
| US3963125A (en) * | 1975-01-23 | 1976-06-15 | Crescent Metal Products, Inc. | Rack for storing trays or the like |
| GB2021470A (en) * | 1978-05-25 | 1979-12-05 | Kangol Helmets Ltd | Manufacture of hollow plastics articles |
| US4287992A (en) * | 1978-07-11 | 1981-09-08 | Shimoda Kogyo, Ltd. | Rack structure |
| GB2041726B (en) * | 1979-01-08 | 1983-04-13 | Plessey Co Ltd | Storage cabinets |
| US4274687A (en) * | 1979-05-14 | 1981-06-23 | Richard A. Bayles | Suspension file assembly |
| EP0066547A3 (en) * | 1981-06-02 | 1985-10-09 | Schweizerische Aluminium Ag | Service trolley |
| US4463684A (en) * | 1982-03-08 | 1984-08-07 | Haworth, Inc. | Horizontal shelf unit for handling papers |
-
1983
- 1983-03-28 DE DE19838309164U patent/DE8309164U1/en not_active Expired
-
1984
- 1984-03-08 DE DE8484102493T patent/DE3485031D1/en not_active Expired - Lifetime
- 1984-03-08 EP EP84102493A patent/EP0120367B1/en not_active Expired - Lifetime
- 1984-03-27 US US06/593,874 patent/US4616754A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE3485031D1 (en) | 1991-10-17 |
| EP0120367A3 (en) | 1988-07-20 |
| EP0120367A2 (en) | 1984-10-03 |
| DE8309164U1 (en) | 1983-09-08 |
| US4616754A (en) | 1986-10-14 |
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