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1. (WO2019025553) SANDWICH STRUCTURE HAVING AN EMBEDDED CONNECTING ELEMENT
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2019/025553 International Application No.: PCT/EP2018/071015
Publication Date: 07.02.2019 International Filing Date: 02.08.2018
IPC:
B32B 1/04 (2006.01) ,B32B 1/06 (2006.01) ,B32B 3/06 (2006.01) ,B32B 7/12 (2006.01) ,B32B 15/00 (2006.01) ,B32B 15/08 (2006.01) ,B32B 15/10 (2006.01) ,B32B 15/12 (2006.01) ,B32B 15/20 (2006.01) ,B32B 21/00 (2006.01) ,B32B 21/14 (2006.01) ,B32B 27/42 (2006.01) ,B32B 38/00 (2006.01) ,B32B 3/08 (2006.01) ,B32B 3/12 (2006.01) ,B32B 3/26 (2006.01) ,B32B 3/30 (2006.01) ,B21J 5/06 (2006.01) ,B60R 13/02 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
1
Layered products essentially having a general shape other than plane
04
characterised by feature of form at particular places, e.g. in edge regions
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
1
Layered products essentially having a general shape other than plane
06
characterised by fillings or added members in hollow portions
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
3
Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form
02
characterised by features of form at particular places, e.g. in edge regions
06
for securing layers together; for attaching the product to another member, e.g. to a support
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
7
Layered products characterised by the relation between layers, i.e. products essentially comprising layers having different physical properties or products characterised by the interconnection of layers
04
characterised by the connection of layers
12
using an adhesive
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
15
Layered products essentially comprising metal
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
15
Layered products essentially comprising metal
04
comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
08
of synthetic resin
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
15
Layered products essentially comprising metal
04
comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
10
of wood
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
15
Layered products essentially comprising metal
04
comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
12
of paper or cardboard
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
15
Layered products essentially comprising metal
20
comprising aluminium or copper
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
21
Layered products essentially comprising wood, e.g. wood board, veneer, wood particle board
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
21
Layered products essentially comprising wood, e.g. wood board, veneer, wood particle board
14
comprising wood board or veneer
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27
Layered products essentially comprising synthetic resin
42
comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
38
Ancillary operations in connection with laminating processes
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
3
Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form
02
characterised by features of form at particular places, e.g. in edge regions
08
characterised by added members at particular parts
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
3
Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form
10
characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material
12
characterised by a layer of regularly-arranged cells whether integral or formed individually or by conjunction of separate strips, e.g. honeycomb structure
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
3
Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form
26
characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
3
Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form
26
characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids
30
characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
B PERFORMING OPERATIONS; TRANSPORTING
21
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
J
FORGING; HAMMERING; PRESSING; RIVETING; FORGE FURNACES
5
Methods for forging, hammering, or pressing; Special equipment or accessories therefor
06
for performing particular operations
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
R
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
13
Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
02
Trim mouldings; Ledges; Wall liners; Roof liners
Applicants:
LUFTHANSA TECHNIK AG [DE/DE]; Weg beim Jäger 193 22335 Hamburg, DE
Inventors:
OLDENBURG, Frederic; DE
REIFFERSCHEID, Moritz; DE
Agent:
GLAWE DELFS MOLLPARTNERSCHAFT MBB VON PATENT- UND RECHTSANWÄLTEN; Postfach 13 03 91 20103 Hamburg, DE
Priority Data:
10 2017 213 501.803.08.2017DE
Title (EN) SANDWICH STRUCTURE HAVING AN EMBEDDED CONNECTING ELEMENT
(FR) STRUCTURE SANDWICH À ÉLÉMENT DE LIAISON NOYÉ
(DE) SANDWICHSTRUKTUR MIT EINGELASSENEM VERBINDUNGSELEMENT
Abstract:
(EN) The invention relates to a sandwich structure (1) having an embedded connecting element (6) and to a method for producing same. The sandwich structure (1) according to the invention, having two cover layers (2, 3) and a core (4) arranged therebetween, has at least one connecting element (6) for connection to further components, wherein the connecting element (6) comprises an insert (7) which is embedded into the sandwich structure (1) at a cover layer (2) and the embedding depth of which is less than the thickness of the core (4). Here, the connecting element (6) is finished flush with the outer side of the cover layer (2) via which the connecting element (6) is embedded, or protrudes from the cover layer (2). The method according to the invention for producing such a sandwich structure (1) comprises the following steps: a) producing a blind hole (5) starting from a cover layer (2) of the sandwich structure (1); b) introducing the connecting element (6) into the blind hole (5) and fastening the connecting element (6) therein; and c) finishing the connecting element (6) such that it is flush with the cover layer (2) or protrudes by a predetermined height from the cover layer (2).
(FR) L’invention concerne une structure sandwich (1) à élément de liaison (6) noyé ainsi qu’un procédé pour la produire. La structure sandwich (1) selon l’invention comporte deux couches de recouvrement (2, 3) et un noyau (4) disposé entre, et présente au moins un élément de liaison (6) pour l’assemblage d’autres composants, ledit élément de liaison (6) comprenant une pièce rapportée (7) noyée dans la structure sandwich (1) au niveau d’une couche de recouvrement (2), pièce rapportée dont la profondeur d’entrée est inférieure à l’épaisseur du noyau (4). A cet effet, l’élément de liaison (6) est retravaillé de manière à se trouver à fleur de la face extérieure de la couche de recouvrement (2) par l’intermédiaire de laquelle l’élément de liaison (6) est noyé ou à faire saillie de la couche de revêtement (2). Le procédé de production d’une telle structure sandwich (1) selon l’invention comprend les étapes suivantes : a) réaliser un trou borgne (5) à partir de la couche de recouvrement (2) de la structure sandwich (1) ; b) insérer l’élément de liaison (6) dans le trou borgne (5) et fixer ledit élément de liaison (6) dedans et c) retravailler l’élément de liaison (6) de manière qu’il se trouve à fleur de la couche de recouvrement (2) ou fait saillie, d’une hauteur prédéfinie, de la couche de recouvrement (2).
(DE) Die Erfindung betrifft eine Sandwichstruktur (1) mit eingelassenem Verbindungselement (6) sowie ein Verfahren zu dessen Herstellung. Die erfindungsgemäße Sandwichstruktur (1) mit zwei Deckschichten (2, 3) und einem dazwischen angeordneten Kern (4) weist zur Verbindung mit weiteren Bauteilen wenigstens ein Verbindungselement (6) auf, wobei das Verbindungselement (6) ein an einer Deckschicht (2) in die Sandwichstruktur (1) eingelassenes Insert (7) umfasst, dessen Einlasstiefe kleiner ist als die Dicke des Kerns (4). Das Verbindungselement (6) ist dabei mit der Außenseite der Deckschicht (2), über die das Verbindungselement (6) eingelassen ist, bündig nachgearbeitet oder aus der Deckschicht (2) hervorstehend. Das erfindungsgemäße Verfahren zur Herstellung einer solchen Sandwichstruktur (1) umfasst die Schritte: a) Herstellen eines Sacklochs (5) ausgehend von einer Deckschicht (2) der Sandwichstruktur (1); b) Einbringen des Verbindungselementes (6) in das Sackloch (5) und Befestigen des Verbindungselements (6) darin; und c) Nacharbeiten des Verbindungselementes (6), sodass es bündig mit der Deckschicht (2) oder um eine vorgegebene Höhe aus der Deckschicht (2) hervorstehend ist.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: German (DE)
Filing Language: German (DE)