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1. (WO2018036733) METHOD FOR PRODUCING A LEAF SPRING FROM FIBRE-REINFORCED COMPOSITE MATERIAL WITH INSERTS, LEAF SPRING, AND CHASSIS FOR A MOTOR VEHICLE
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Pub. No.: WO/2018/036733 International Application No.: PCT/EP2017/068623
Publication Date: 01.03.2018 International Filing Date: 24.07.2017
IPC:
F16F 1/368 (2006.01) ,B29C 70/70 (2006.01) ,B29C 70/68 (2006.01) ,B29C 70/42 (2006.01) ,B60G 3/10 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F
SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
1
Springs
36
made of plastics, e.g. rubber; made of material having high internal friction
366
made of fibre reinforced plastics
368
Leaf springs
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
70
Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
68
by incorporating or moulding on preformed parts, e.g. inserts, layers
70
Completely encapsulating inserts
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
70
Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
68
by incorporating or moulding on preformed parts, e.g. inserts, layers
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
70
Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
04
comprising reinforcements only, e.g. self-reinforcing plastics
28
Shaping operations therefor
40
Shaping or impregnating by compression
42
for producing articles of definite length, i.e. discrete articles
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
G
VEHICLE SUSPENSION ARRANGEMENTS
3
Resilient suspensions for a single wheel
02
with a single pivoted arm
04
the arm being essentially transverse to the longitudinal axis of the vehicle
10
the arm itself being resilient, e.g. leaf spring
Applicants: ZF FRIEDRICHSHAFEN AG[DE/DE]; Löwentaler Straße 20 88046 Friedrichshafen, DE
Inventors: KRAHN, Stefan; DE
RUPFLIN, Thomas; DE
SCHRAMM, Mathias; DE
LOBO CASANOVA, Ignacio; DE
Priority Data:
10 2016 215 938.025.08.2016DE
Title (EN) METHOD FOR PRODUCING A LEAF SPRING FROM FIBRE-REINFORCED COMPOSITE MATERIAL WITH INSERTS, LEAF SPRING, AND CHASSIS FOR A MOTOR VEHICLE
(FR) PROCÉDÉ DE FABRICATION D’UN RESSORT À LAMES COMPOSÉ D’UN MATÉRIAU COMPOSITE RENFORCÉ DE FIBRES ET MUNI D’UN INSERT, ET RESSORT À LAMES ET SUSPENSION DE VÉHICULE AUTOMOBILE
(DE) VERFAHREN ZUR HERSTELLUNG EINER BLATTFEDER AUS FASERVERBUNDWERKSTOFF MIT EINLEGER, SOWIE BLATTFEDER UND FAHRWERK FÜR EIN KRAFTFAHRZEUG
Abstract:
(EN) The invention relates to a method for producing a leaf spring (1) from a fibre-reinforced composite material, the leaf spring (1) being fabricated from a plurality of fibre layers with at least one thickened portion (2, 3) lying between ends (4, 5) in the longitudinal direction. To reduce outlay on production, the at least one thickened portion (2, 3) is in each case defined by at least one insert (8), which is prefabricated as a unit and is then arranged between an upper covering layer (6) and a lower covering layer (7) in the region of the thickened portion (2, 3) to be defined.
(FR) L’invention concerne un procédé de fabrication d’un ressort à lames (1) composé d’un matériau composite renforcé de fibres, le ressort à lames (1) étant fabriqué à partir de plusieurs couches de fibres présentant au moins un renflement (2, 3) ménagé dans le sens de la longueur entre des extrémités (4, 5). L’invention vise à réduire la complexité de la fabrication. À cet effet, le ou les renflements (2, 3) sont respectivement définis par au moins un insert (8) qui est préfabriqué sous la forme d’une unité et qui est ensuite agencé dans la zone du renflement (2, 3) concerné à définir, entre une couche de recouvrement supérieure (6) et une couche de recouvrement inférieure (7).
(DE) Verfahren zur Herstellung einer Blattfeder (1) aus einem Faserverbundwerkstoff, wobei die Blattfeder (1) aus mehreren Faserlagen mit mindestens einer in Längsrichtung zwischen Enden (4, 5) liegenden Aufdickung (2, 3) gefertigt wird. Um nun den Herstellungsaufwand zu reduzieren, wird die mindestens eine Aufdickung (2, 3) jeweils durch zumindest einen Einleger (8) definiert, welcher als Einheit vorgefertigt und anschließend in dem Bereich der jeweils zu definierenden Aufdickung (2, 3) zwischen einer oberen Decklage (6) und einer unteren Decklage (7) angeordnet wird.
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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, 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)