EP1900452A1 - Method for reinforcing a wall of a three dimensional fitting - Google Patents

Method for reinforcing a wall of a three dimensional fitting Download PDF

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Publication number
EP1900452A1
EP1900452A1 EP06090167A EP06090167A EP1900452A1 EP 1900452 A1 EP1900452 A1 EP 1900452A1 EP 06090167 A EP06090167 A EP 06090167A EP 06090167 A EP06090167 A EP 06090167A EP 1900452 A1 EP1900452 A1 EP 1900452A1
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EP
European Patent Office
Prior art keywords
wall
body part
punch
board
shaped body
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.)
Granted
Application number
EP06090167A
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German (de)
French (fr)
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EP1900452B1 (en
Inventor
Paul Dipl.-Ing. Frauchiger
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Feintool Intellectual Property AG
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Feintool Intellectual Property AG
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Priority to EP06090167A priority Critical patent/EP1900452B1/en
Priority to US11/590,401 priority patent/US7581424B2/en
Priority to CA2569192A priority patent/CA2569192C/en
Priority to JP2007171326A priority patent/JP5670010B2/en
Priority to KR1020070089250A priority patent/KR101446699B1/en
Priority to MX2007010981A priority patent/MX2007010981A/en
Publication of EP1900452A1 publication Critical patent/EP1900452A1/en
Application granted granted Critical
Publication of EP1900452B1 publication Critical patent/EP1900452B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/28—Making machine elements wheels; discs
    • B21K1/30—Making machine elements wheels; discs with gear-teeth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/14—Making other products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/02—Bending by stretching or pulling over a die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching

Definitions

  • the wall portion 10 between the edge 8 and the embossment 6 of the cup-shaped body part 3 is weakened during forming, ie there is a flow of material from the wall portion 10 in the direction of the impression 6 instead. When loaded, this leads to the crack R in the wall region 10 shown in FIG. 2 .
  • the thus formed board 2 is additionally held in the second step of the method according to the invention by a ring prong 16 and the material structure 15 on the opposite side G by a counter punch 17 in a direction opposite to the arrow C direction (see arrow D) , so that material in a laterally from the stamp 13 located space 18 flows away and the wall portion 10 between the edge 8 and embossing 5 in the cup-shaped body part 3 to the wall thickness s amplified (see Fig. 3c and 3d), which corresponds approximately to the volume of material drained off in this example.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Forging (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Body Structure For Vehicles (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

The method involves cutting a plate from a flat strip with an evenly curved outer contour. The plate is formed and fine blanked into a pot-shaped body (3) using a forming and fine blanking tool. A circular edge (8) for a toothing is formed at the body. A wall thickness of a wall region (10) between the edge and the pot-shaped body is reinforced by a selective material shifting using a two-staged cold-extrusion process in respectively opposite flow directions, so that the material shifting compensates the material flow to the wall region.

Description

Die Erfindung betrifft ein Verfahren zum Verstärken eines Wandbereichs von einem dreidimensionalen Beschlag für hohe Drehmomentbelastungen, bei dem aus einem Bandstreifen eine Platine mit im wesentlichen gleichmäßig gekrümmter Außenkontur ausgeschnitten und anschließend die Platine zu einem topfförmigen Körperteil mit Ausdrückungen und/oder Abprägungen und/oder Einsenkungen und/oder Aussparungen und/oder Durchsetzungen und/oder Bohrungen und/oder Zapfenpressen mittels eines aus Stempel, Gegenstempel, Matrize, Ringzacke und Führungsplatte bestehenden Umform- und Feinschneidwerkzeugs umgeformt und feingeschnitten wird, wobei ein umlaufender Rand für eine Verzahnung an dem Körperteil ausgeformt wirdThe invention relates to a method for reinforcing a wall portion of a three-dimensional fitting for high torque loads, in which cut out of a tape strip a board having a substantially uniformly curved outer contour and then the board to a cup-shaped body part with expressions and / or stampings and / or depressions and / or recesses and / or enforcements and / or bores and / or journal presses by means of a punch, counter punch, die, ring spike and guide plate existing forming and fine cutting tool is formed and fine-cut, wherein a peripheral edge is formed for a toothing on the body part

Stand der TechnikState of the art

Sitzverstellungskomponenten, beispielsweise feste und schwenkbewegliche Gelenkteile von Gelenkbeschlägen, werden bekanntlich durch Umformen und Feinstanzen oder -schneiden in einer für den endgültigen Einsatzzweck sehr hohen Maßhaltigkeit hergestellt (siehe EP 0 694 434 B1 , DE 32 44 399 C2 , DE 28 34 492 C2 , DE 32 27 222 C1 ).Seat adjustment components, such as fixed and pivotable hinge parts of hinge fittings are known to be produced by reshaping and fine blanking or cutting in a very high dimensional accuracy for the final use (see EP 0 694 434 B1 . DE 32 44 399 C2 . DE 28 34 492 C2 . DE 32 27 222 C1 ).

Diese bekannten Gelenkteile bestehen im wesentlichen aus einem topfförmig geformten Körperteil mit Ausdrückungen und/oder Abprägungen und/oder Einsenkungen und/oder Aussparungen und/oder Durchsetzungen und/oder Bohrungen und/oder Zapfenpressen. Der mit einer gleichmäßig gekrümmten Außenkontur versehene Körperteil hat einen umlaufenden Rand, in dem eine radial nach innen in das Körperteil gerichtete Verzahnung eingearbeitet ist. Diese Verzahnung muss funktionsmäßig sehr hohe Drehmomente übertragen, so dass der Wandbereich zwischen Rand und dem Körperteil, d.h. die Anbindung zum topfförmigen Körperteil erheblichen Belastungen ausgesetzt ist, was oft zum Bruch führt. Dies beeinträchtigt die Sicherheit und Zuverlässigkeit der Sitzverstellungskomponenten.
AufgabenstellungThese known hinge parts consist essentially of a cup-shaped body part with expressions and / or stampings and / or depressions and / or recesses and / or enforcements and / or holes and / or journal presses. The body part provided with a uniformly curved outer contour has a peripheral edge in which a toothing directed radially inwards into the body part is incorporated. This gearing must functionally transmit very high torques, so that the wall area between the edge and the body part, ie the connection to the pot-shaped body part is exposed to considerable loads, which often leads to breakage. This affects the safety and reliability of the seat adjustment components.
task

Bei diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art derart zu verbessern, dass Gelenkbeschläge mit einer weitaus höheren Sicherheit gegen Bruch des Wandbereiches zwischen dem eine Innenverzahnung tragenden Rand und dem topfförmigen Körperteil des Gelenkbeschlags kostengünstig zur Verfügung gestellt werden können.In this prior art, the present invention seeks to improve a method of the type mentioned in such a way that hinge fittings are provided at a much higher security against breakage of the wall area between the inner toothing bearing edge and the cup-shaped body part of the hinge fitting cost can.

Diese Aufgabe wird durch ein Verfahren der eingangs genannten Gattung mit den kennzeichnenden Merkmalen des Anspruchs 1 gelöst.This object is achieved by a method of the type mentioned with the characterizing features of claim 1.

Vorteilhafte Ausgestaltungen des Verfahrens sind den Unteransprüchen entnehmbar.Advantageous embodiments of the method are the dependent claims.

Der nach dem erfindungsgemäßen Verfahren hergestellte Gelenkbeschlag zeichnet sich dadurch aus, dass die Wanddicke des Wandbereichs zwischen dem Rand und dem topfförmigen Körperteil des Beschlags durch eine gezielte Materialverschiebung mit mindestens einem zweistufigen Kaltfließpressvorgang jeweils in entgegengesetzte Fließrichtungen schräg zur Stempelbewegung trotz Umformung eine etwa der ursprünglichen Wanddicke entsprechenden Dicke erreicht und mühelos extrem hohen Bruchlasten widersteht.The hinge fitting produced by the method according to the invention is characterized in that the wall thickness of the wall portion between the edge and the cup-shaped body part of the fitting by a targeted material displacement with at least a two-stage Kaltfließpressvorgang each in opposite directions of flow obliquely to the punch movement despite reshaping an approximately the original wall thickness Thickness and effortlessly withstands extremely high breaking loads.

Dies ist mit dem außerordentlichen Vorteil verbunden, dass problemlos große Drehmomente übertragen werden können, so dass Gelenkbeschläge zur Verfügung stehen, die auch für spezielle oder bestimmte Belastungswerte, beispielsweise für die Befestigung eines Sicherheitsgurtes an der Sitzlehne eines Pkw, geeignet sind.This is associated with the extraordinary advantage that large torques can be transmitted without difficulty, so that hinge fittings are available, which are also suitable for specific or specific load values, for example for fastening a seat belt to the seat back of a car.

Durch die Materialverschiebung in den Wandbereich der Anbindung entsteht zusätzlich der Vorteil, dass das Anschneiden über die gesamte Materialdicke möglich wird, so dass der Einsatzbereich des Feinschneidens auch an komplexen und kompliziert aufgebauten dreidimensionalen multifunktionalen Teilen wirtschaftlich möglich wird.Due to the material displacement in the wall region of the connection, the additional advantage arises that the cutting across the entire material thickness is possible, so that the application of fineblanking is economically possible even on complex and complicated constructed three-dimensional multifunctional parts.

Weitere Vorteile und Einzelheiten ergeben sich aus der nachfolgenden Beschreibung unter Bezugnahme auf die beigefügten Zeichnungen.Further advantages and details will become apparent from the following description with reference to the accompanying drawings.

Ausführungsbeispielembodiment

Die Erfindung soll nachstehend an einem Ausführungsbeispiel näher erläutert werden.The invention will be explained in more detail below using an exemplary embodiment.

Es zeigtIt shows

Fig. 1 einen Schnitt durch einen Gelenkbeschlag,1 shows a section through a hinge fitting,

Fig. 2 eine vergrößerte Ansicht eines Risses im Anbindungsbereich zwischen Rand und topfförmigen Körperteil des Gelenkbeschlags,2 is an enlarged view of a crack in the connection region between the edge and cup-shaped body part of the hinge fitting,

Fig. 3a bis 3c eine Prinzipdarstellung des Ablaufs des erfindungsgemäßen Verfahrens und3a to 3c is a schematic representation of the sequence of the method according to the invention and

Fig. 4 einer perspektivischen Darstellung eines Schnitts durch einen dreidimensionalen Gelenkbeschlag, der nach dem erfindungsgemäßen Verfahren hergestellt wurde.Fig. 4 is a perspective view of a section through a three-dimensional hinge fitting, which was prepared by the method according to the invention.

Mit dem erfindungsgemäßen Verfahren sollen dreidimensionale multifunktionale Gelenkbeschläge 1 für Autositzkomponenten hergestellt werden, die auch bei hohen Belastungen, beispielsweise über 6000 N, bruchsicher sind.The method according to the invention is intended to produce three-dimensional multifunctional articulated fittings 1 for car seat components which are shatter-proof even at high loads, for example above 6000 N.

Die Fig. 1 zeigt einen Schnitt durch einen kreisrunden, jedoch auf solche geometrische Formen nicht festgelegten Gelenkbeschlag 1, der aus einer Platine 2 (siehe Fig. 3) eines Bandstreifen aus Stahl mit einer Dicke von beispielsweise 3 bis 8 mm hergestellt wurde.Fig. 1 shows a section through a circular, but not fixed to such geometric shapes hinge fitting 1, which was made of a board 2 (see Fig. 3) of a strip of steel strip with a thickness of for example 3 to 8 mm.

Die Platine 2 wird einem kombinierten Umform- und Feinschneidprozess unterworfen, in dessen Verlauf der dreidimensionale Gelenkbeschlag 1 entsteht.The board 2 is subjected to a combined forming and fine blanking process, in the course of the three-dimensional hinge fitting 1 is formed.

Der Gelenkbeschlag 1 besteht aus einem topfförmigen Körperteil 3, in dem durch Umformvorgänge Ausdrückungen 4, Vertiefungen 5, eine Abprägung 6 und eine Bohrung 7 eingeformt bzw. eingebracht wurden. Der Körperteil 3 weist einen umlaufenden Rand 8 auf, welcher eine radial nach innen ausgerichtete Verzahnung 9 besitzt. Abprägung 6 und Rand 8 sind durch einen Wandbereich 10 verbunden.The hinge fitting 1 consists of a cup-shaped body part 3, in which by forming operations expressions 4, recesses 5, a stamping 6 and a bore 7 were formed or introduced. The body part 3 has a peripheral edge 8 , which has a radially inwardly aligned toothing 9 . Embossment 6 and edge 8 are connected by a wall region 10 .

Der Wandbereich 10 zwischen dem Rand 8 und der Abprägung 6 des topfförmigen Körperteils 3 wird beim Umformen geschwächt, d.h. es findet ein Abfließen des Materials aus dem Wandbereich 10 in Richtung der Abprägung 6 statt. Dies führt bei Belastung zu dem in Fig. 2 gezeigten Riss R im Wandbereich 10. The wall portion 10 between the edge 8 and the embossment 6 of the cup-shaped body part 3 is weakened during forming, ie there is a flow of material from the wall portion 10 in the direction of the impression 6 instead. When loaded, this leads to the crack R in the wall region 10 shown in FIG. 2 .

In den Fig. 3a bis 3d ist der Ablauf des erfindungsgemäßen Verfahrens schematisch dargestellt. Gemäß Fig. 3a ist die Platine 2 zwischen einer Führungsplatte 11 und einer Matrize 12 fest verspannt. Der von der Führungsplatte 11 geführte Stempel 13 führt eine Bewegung in Richtung SM der Matrize 12 aufwärts aus. In der Matrize 12 ist ein Raum 14 vorgesehen, der etwas seitlich von der Stempelachse A liegt.In FIGS. 3a to 3d, the sequence of the method according to the invention is shown schematically. According to Fig. 3a, the board 2 between a guide plate 11 and a die 12 is firmly clamped. The guided by the guide plate 11 punch 13 performs a movement in the direction SM of the die 12 upwards. In the die 12 a space 14 is provided which lies somewhat laterally of the punch axis A.

Im ersten Schritt des erfindungsgemäßen Verfahrens bewegt sich der Stempel 13 in Richtung Matrize 12 aufwärts, wodurch ein entsprechendes Materialvolumen V in dem Raum 14 seitlich vom Stempel 13 abfließt (siehe Pfeilrichtung C). Dieses Materialvolumen V füllt den Raum 14 und es entsteht dadurch ein Materialaufbau 15 an der zum Stempel 13 gelegenen Gegenseite G der Platine 2. In the first step of the method according to the invention, the punch 13 moves upwards in the direction of the die 12 , whereby a corresponding volume of material V in the space 14 flows off laterally from the punch 13 (see arrow direction C). This volume of material V fills the space 14 and thereby creates a material structure 15 at the opposite side of the punch 13 G of the board . 2

Die so umgeformte Platine 2 wird im zweiten Schritt des erfindungsgemäßen Verfahrens zusätzlich durch eine Ringzacke 16 festgehalten und der Materialaufbau 15 an der Gegenseite G durch einen Gegenstempel 17 in eine zur Pfeilrichtung C entgegengesetzte Richtung (siehe Pfeilrichtung D) verschoben, so dass Material in einen seitlich vom Stempel 13 befindlichen Raum 18 abfließt und den Wandbereich 10 zwischen Rand 8 und Abprägung 5 im topfförmigen Körperteil 3 auf die Wanddicke s verstärkt (siehe Fig. 3c und 3d), die in diesem Beispiel etwa dem beim Umformen abgeflossenen Materialvolumen entspricht.The thus formed board 2 is additionally held in the second step of the method according to the invention by a ring prong 16 and the material structure 15 on the opposite side G by a counter punch 17 in a direction opposite to the arrow C direction (see arrow D) , so that material in a laterally from the stamp 13 located space 18 flows away and the wall portion 10 between the edge 8 and embossing 5 in the cup-shaped body part 3 to the wall thickness s amplified (see Fig. 3c and 3d), which corresponds approximately to the volume of material drained off in this example.

Durch die Bemessung der Räume 14 und 18 kann das zu verschiebende Materialvolumen V bestimmt werden, wodurch es möglich ist, die Wanddicke s des Wandbereichs 10 auf ein für eine bestimmte Bruchlast sicheres Maß zu verstärken. Ein solches bruchsicheres Gelenkteil 1 zeigt Fig. 4. Die zu wählende Bemessung der Räume 14 und 18 ergibt sich aus dem Fließverhalten des Materials der Platine 2, der Härte und Belastbarkeit der Stempel 13 und 17, den Schmierstoff, dem Aufbau des Werkzeugs sowie der für den Anwendungsfall notwendigen Bruchlast.By dimensioning the spaces 14 and 18 , the material volume to be displaced V can be determined, whereby it is possible to increase the wall thickness s of the wall portion 10 to a certain degree for a certain breaking load measure. Such a shatter-proof joint part 1 is shown in FIG. 4. The dimensioning of the spaces 14 and 18 to be selected results from the flow behavior of the material of the board 2, the hardness and resilience of the punches 13 and 17, the lubricant, the structure of the tool and the the application case necessary breaking load.

Damit wird es möglich, mühelos Bruchsicherheiten zu erreichen, die die Bruchlast in diesem Wandbereich beträchtlich übersteigt.This makes it possible to easily achieve fracture resistance that significantly exceeds the breaking load in this wall area.

BezugszeichenlisteLIST OF REFERENCE NUMBERS Gelenkbeschlagjoint fitting 11 Platinecircuit board 22 Körperteil von 1Body part of 1 33 AusdrückungenAusdrückungen 44 Vertiefungenwells 55 AbprägungAbprägung 66 Bohrungdrilling 77 Randedge 88th Verzahnunggearing 99 Wandbereich zwischen 8 und 6Wall area between 8 and 6 1010 Führungsplatteguide plate 1111 Matrizedie 1212 Stempelstamp 1313 Raum in 12Room in 12th 1414 Materialaufbaumaterial composition 1515 RingzackeV-shaped projection 1616 Gegenstempelcounterpunch 1717 Raum in FührungsplatteSpace in guide plate 1818 Stempelachsepunch axis AA Pfeilrichtung des FließensArrow direction of flow CC Pfeilrichtung des entgegengesetzten FließensArrow direction of the opposite flow DD Gegenseite von 2Opposite side of 2 GG Risse in 10Cracks in 10 RR Richtung des Stempels 13Direction of the punch 13 SMSM Wanddicke von 10Wall thickness of 10 ss Materialvolumenmaterial volume VV

Claims (5)

Verfahren zum Verstärken eines Wandbereichs von einem dreidimensionalen Beschlag für hohe Drehmomentbelastungen, bei dem aus einem Bandstreifen eine Platine mit im wesentlichen gleichmäßig gekrümmter Außenkontur ausgeschnitten und anschließend die Platine zu einem topfförmigen Körperteil mit Ausdrückungen und/oder Abprägungen und/oder Einsenkungen und/oder Aussparungen und/oder Durchsetzungen und/oder Bohrungen und/oder Zapfenpressen mittels eines aus Stempel, Gegenstempel, Matrize, Ringzacke und Führungsplatte bestehenden Umform- und Feinschneidwerkzeugs umgeformt und feingeschnitten wird, wobei ein umlaufender Rand für eine Verzahnung an dem Körperteil ausgeformt wird, dadurch gekennzeichnet, dass die Wanddicke (s) des Wandbereichs (10) zwischen dem Rand (8) und dem topfförmigen Körperteil (2) des Beschlags durch eine gezielte Materialverschiebung mit einem mindestens zweistufigen Kaltfließpressvorgang jeweils in entgegengesetzte Fließrichtungen (C,D) schräg zur Stempelbewegung (SM) so verstärkt wird, dass die gezielte Materialverschiebung den durch die Umformung hervorgerufenen Materialabfluß im Wandbereich (10) annähernd wieder ausgleicht.A method for reinforcing a wall portion of a three-dimensional fitting for high torque loads, in which cut out of a tape strip a board having a substantially uniformly curved outer contour and then the board to a cup-shaped body part with expressions and / or stampings and / or depressions and / or recesses and / or enforcements and / or bores and / or journal presses by means of a punch, counter punch, die, ring spike and guide plate existing forming and fine cutting tool is formed and fine-cut, wherein a peripheral edge is formed for a toothing on the body part, characterized in that the wall thickness (s) of the wall region (10) between the edge (8) and the cup-shaped body part (2) of the fitting by a deliberate material displacement with an at least two-stage Kaltfließpressvorgang each in opposite directions of flow (C, D) obliquely to St Empelbewegung (SM) is reinforced so that the targeted material displacement compensates for the caused by the deformation material drain in the wall area (10) approximately again. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass in der ersten Stufe das Mittenmaterial der Platine (2) zunächst in einer mit zur Stempelrichtung (SM) gleich verlaufenden Richtung so zum Fließen gebracht wird, dass sich ein Materialvolumen (V) an der äußeren Gegenseite (G) der Platine (2) schräg zur Stempelrichtung (SM) gelegenen Richtung (C) in einem in der Matrize (12) gebildeten Raum (14) aufbaut.A method according to claim 1, characterized in that in the first stage, the center material of the board (2) is first made to flow in a direction identical to the punch direction (SM) direction so that a volume of material (V) on the outer opposite side ( G) of the board (2) obliquely to the punch direction (SM) located direction (C) in a formed in the die (12) space (14) builds. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass in der zweiten Stufe das aufgebaute Materialvolumen (V) durch ein Kaltfließpressen in einer zur ersten Stufe entgegengesetzten Richtung (D) so in einen in der Führungsplatte (11) ausgebildeten Raum (18) verschoben wird, dass sich der Wandbereich (10) zwischen dem Rand (8) und der Abprägung (6) des topfförmigen Körperteils (3) mit einer auf die geforderte Belastung angepassten Wanddicke (s) ausbildet.A method according to claim 1, characterized in that in the second stage, the built-up material volume (V) is displaced by cold extrusion in a direction opposite to the first stage direction (D) in a in the guide plate (11) formed space (18) that the wall region (10) between the edge (8) and the embossment (6) of the cup-shaped body part (3) is formed with a wall thickness (s) adapted to the required load. Verfahren nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass die Verstärkung der Wanddicke (s) im Wandbereich (10) durch eine Wahl von Größe und Form der Räume (14;18) in der Matrize (12) und Führungsplatte (11) eingestellt wird.Method according to claims 1 to 3, characterized in that the reinforcement of the wall thickness (s) in the wall region (10) is adjusted by a choice of size and shape of the spaces (14; 18) in the die (12) and guide plate (11) , Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Wanddicke (s) auf eine für die jeweilige Anwendung geeignete Bruchlast eingestellt wird.A method according to claim 1, characterized in that the wall thickness (s) is adjusted to a suitable for the particular application breaking load.
EP06090167A 2006-09-13 2006-09-13 Method for reinforcing a wall of a three dimensional fitting Active EP1900452B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP06090167A EP1900452B1 (en) 2006-09-13 2006-09-13 Method for reinforcing a wall of a three dimensional fitting
US11/590,401 US7581424B2 (en) 2006-09-13 2006-10-31 Method for the reinforcement of a wall region of a three-dimensional attachment
CA2569192A CA2569192C (en) 2006-09-13 2006-11-29 Method for the reinforcement of a wall region of a three-dimensional attachment
JP2007171326A JP5670010B2 (en) 2006-09-13 2007-06-29 Method to reinforce the wall area of 3D hinge bracket
KR1020070089250A KR101446699B1 (en) 2006-09-13 2007-09-04 Method for the reinforcement of a wall region of a three-dimensional attachment
MX2007010981A MX2007010981A (en) 2006-09-13 2007-09-07 Method for the reinforcement of a wall region of a three-dimensional attachment .

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06090167A EP1900452B1 (en) 2006-09-13 2006-09-13 Method for reinforcing a wall of a three dimensional fitting

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EP1900452A1 true EP1900452A1 (en) 2008-03-19
EP1900452B1 EP1900452B1 (en) 2012-05-30

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US (1) US7581424B2 (en)
EP (1) EP1900452B1 (en)
JP (1) JP5670010B2 (en)
KR (1) KR101446699B1 (en)
CA (1) CA2569192C (en)
MX (1) MX2007010981A (en)

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US11627865B2 (en) * 2013-05-31 2023-04-18 Freshwater Bay Industries, Llc Vaginal surgical apparatus

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DE2834492C2 (en) 1978-08-07 1994-07-28 Keiper Automobiltechnik Gmbh & Co Kg, 5630 Remscheid, De
DE3227222C1 (en) 1982-07-21 1984-05-03 Keiper Automobiltechnik Gmbh & Co Kg, 5630 Remscheid Articulated fitting for seats with adjustable backrest, in particular motor vehicle seats
DE3244399C2 (en) 1982-12-01 1987-06-11 P.A. Rentrop, Hubbert & Wagner Fahrzeugausstattungen Gmbh & Co Kg, 3060 Stadthagen, De
US5531504A (en) * 1991-05-28 1996-07-02 Schmale; Gerhard Articulated armature for seats with adjustable backs, in particular for motor vehicles
DE4140720A1 (en) * 1991-12-10 1993-06-17 Naue Johnson Controls Eng Mfg.pinions of eccentric epicyclic drive and associated rims - uses first stage to form central sections,and second stage to press teeth
EP0694434B1 (en) 1994-07-22 1997-09-24 Bertrand Faure Equipements S.A. Hinge fitting for vehicle seat
EP0937523A2 (en) * 1998-02-24 1999-08-25 Fujikiko Kabushiki Kaisha Outer teeth, inner teeth, and producing method thereof

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US7581424B2 (en) 2009-09-01
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CA2569192A1 (en) 2008-03-13
KR101446699B1 (en) 2014-10-06
JP2008068318A (en) 2008-03-27
MX2007010981A (en) 2009-02-03
EP1900452B1 (en) 2012-05-30
US20080072650A1 (en) 2008-03-27

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