EP2022918A2 - Hinge and manufacturing method therefor - Google Patents

Hinge and manufacturing method therefor Download PDF

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Publication number
EP2022918A2
EP2022918A2 EP08014054A EP08014054A EP2022918A2 EP 2022918 A2 EP2022918 A2 EP 2022918A2 EP 08014054 A EP08014054 A EP 08014054A EP 08014054 A EP08014054 A EP 08014054A EP 2022918 A2 EP2022918 A2 EP 2022918A2
Authority
EP
European Patent Office
Prior art keywords
hinge
tape
roll
tab
tape roll
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.)
Withdrawn
Application number
EP08014054A
Other languages
German (de)
French (fr)
Other versions
EP2022918A3 (en
Inventor
Ernst Schulte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eco Schulte GmbH and Co KG
Original Assignee
Eco Schulte GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eco Schulte GmbH and Co KG filed Critical Eco Schulte GmbH and Co KG
Publication of EP2022918A2 publication Critical patent/EP2022918A2/en
Publication of EP2022918A3 publication Critical patent/EP2022918A3/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D9/00—Flaps or sleeves specially designed for making from particular material, e.g. hoop-iron, sheet metal, plastics
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00—Construction of single parts, e.g. the parts for attachment
    • E05D5/02—Parts for attachment, e.g. flaps
    • E05D5/06—Bent flaps
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00—Construction of single parts, e.g. the parts for attachment
    • E05D5/02—Parts for attachment, e.g. flaps
    • E05D5/04—Flat flaps
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/50—Mounting methods; Positioning
    • E05Y2600/54—Welding
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
    • E05Y2900/132—Doors

Definitions

  • the present invention relates to a hinge having a first and a second band half, wherein the first band half a Zargen- or frame part and the other second band half is a door or wing part, wherein at least one band half has at least one tape roll and a hinge flap.
  • Roller hinges usually consist of two parts, the band halves, which are also referred to as Zargen-, frame, door, or wing part or as a trade, which are connected to a pin.
  • A1s material for the band halves is usually steel, stainless steel or brass used.
  • Each band half usually has a band tab and at least one band roll. So far, a band half was usually made from a sheet by rolling. Due to this manufacturing process, the visible tape roll is always made of the same material as the tape tab. Also, the material thickness of the hinge and the roll of tape is always the same. This is constructional and also for cost reasons often not necessary and useful.
  • Object of the present invention is therefore to provide a hinge in which the visible part in the form of the roll of tape of the hinge, and the hinge tabs made of different materials and / or may have different thicknesses.
  • a hinge in which the at least one roll of tape with the hinge tabs are welded together.
  • Such a welded hinge has the advantage that the at least one tape roll and the hinge flap can be prefabricated from different materials and / or material thicknesses.
  • the hinge flap which is almost invisible when installed, are prefabricated from less expensive Stah1, whereas the tape roll made of brass, copper, aluminum, stainless steel or steel can be made.
  • the welding process also allows the tape rolls to be welded to the hinge tabs in different positions, thereby accommodating possible customer requests.
  • a laser welding method is used for the connection of tape roll with hinge tab.
  • the advantage of the laser welding process compared to conventional welding methods is the saving of material, in addition, no welding consumables are needed and the hinge tabs and the tape rolls can be connected to each other with high precision and low energy consumption.
  • the tape roll part also have a head or foot side cover, which is integrally formed in one operation during cold extrusion or, is configured.
  • the hinge flap can be advantageously made e.g. be a stamped deep-drawn part, which can be adapted in shape to any window or door profile, and that after deep drawing with the tape rolls must only be welded. This results in a simple manufacturing process in which little material is lost and also few manufacturing steps are required.
  • the hinge tab is a cut to length extruded profile, which is welded to the or the tape rolls.
  • FIG. 1 shows on its left half, three different reel R A , R B and R C , wherein the individual reels R i differ in outer and inner diameter and in their wall thickness from each other.
  • the individual reels R i differ in outer and inner diameter and in their wall thickness from each other.
  • three different possible shapes of hinge tabs L 1 , L 2 and L 3 are shown, which almost arbitrarily with the left in the FIG. 1 shown roller bands R i can be combined and welded.
  • FIG. 2 shows possible combinations of in FIG. 1 shown tape rolls R i with the hinge tabs L 1 , L 2 and L 3 .
  • a device is advantageously used which holds the band reels R i and band tabs L i in position relative to one another, wherein then automatically at least one weld joint connects the two parts together.
  • more than one tape roll R i is attached or welded to a hinge flap L i .
  • a supply and / or removal device to supply or remove the parts of a holding and positioning device which holds the parts in position relative to one another during the welding process for producing the weld seams S.

Abstract

The hinge has two strip halves provided with reels (Ra-Rc) and hinge straps (L1-L3), where one of strip halves is an edge part and/or frame part and another strip half is a door part and/or wing part. The reels are welded in different positions at the hinge straps using laser welding process, where the reels and the straps are made of different material. Wall thicknesses of the reels and the straps are different, where the wall thickness of the reels is larger than the thickness of the straps. The reels are formed as cold formed parts. An independent claim is also included for a method for manufacturing a hinge.

Description

Die vorliegende Erfindung betrifft ein Scharnier mit einer ersten und einer zweiten Bandhälfte, wobei die eine erste Bandhälfte ein Zargen- bzw. Rahmenteil und die andere zweite Bandhälfte ein Tür- bzw. Flügelteil ist, wobei zumindest eine Bandhälfte mindestens eine Bandrolle und einen Bandlappen hat.The present invention relates to a hinge having a first and a second band half, wherein the first band half a Zargen- or frame part and the other second band half is a door or wing part, wherein at least one band half has at least one tape roll and a hinge flap.

Rollenscharniere bestehen in der Regel aus zwei Teilen, den Bandhälften, welche auch als Zargen-, Rahmen-, Tür-, oder Flügelteil oder aber auch als Gewerbe bezeichnet werden, die mit einem Stift verbunden sind.Roller hinges usually consist of two parts, the band halves, which are also referred to as Zargen-, frame, door, or wing part or as a trade, which are connected to a pin.

A1s Material für die Bandhälften wird meist Stahl, Edelstahl oder Messing verwendet. Jede Bandhälfte weist in der Regel einen Bandlappen und mindestens eine Bandrolle auf. Bislang wurde eine Bandhälfte in der Regel aus einem Blech durch Rollen hergestellt. Bedingt durch dieses Herstellungsverfahren ist die sichtbare Bandrolle stets aus dem gleichen Material wie der Bandlappen. Auch ist die Materialstärke des Bandlappens und der Bandrolle stets gleich. Dies ist konstruktionstechnisch und auch aus Kostengründen oft nicht notwendig und sinnvoll.A1s material for the band halves is usually steel, stainless steel or brass used. Each band half usually has a band tab and at least one band roll. So far, a band half was usually made from a sheet by rolling. Due to this manufacturing process, the visible tape roll is always made of the same material as the tape tab. Also, the material thickness of the hinge and the roll of tape is always the same. This is constructional and also for cost reasons often not necessary and useful.

Aufgabe der vorliegenden Erfindung ist es daher, ein Scharnier bereit zu stellen, bei dem das Sichtteil in form der Bandrolle des Scharniers, und der Bandlappen aus unterschiedlichen Materialien bestehen und/oder unterschiedliche Materialstärken aufweisen können.Object of the present invention is therefore to provide a hinge in which the visible part in the form of the roll of tape of the hinge, and the hinge tabs made of different materials and / or may have different thicknesses.

Diese Aufgabe wird erfindungsgemäß mit einem Scharnier gelöst, bei dem die mindestens eine Bandrolle mit dem Bandlappen miteinander verschweißt sind. Ein derartig geschweißtes Scharnier hat den Vortei1, dass die mindestens eine Bandrolle und der Bandlappen aus unterschiedlichen Materialien und/oder Materialstärken vorgefertigt werden können.This object is achieved with a hinge in which the at least one roll of tape with the hinge tabs are welded together. Such a welded hinge has the advantage that the at least one tape roll and the hinge flap can be prefabricated from different materials and / or material thicknesses.

Vorteilhaft kann z. B. der Bandlappen, welcher im eingebauten Zustand fast nicht sichtbar ist, aus kostengünstigerem Stah1 vorgefertigt werden, wohingegen die Bandrolle aus Messing, Kupfer, Aluminium, Edelstahl oder ebenfalls aus Stahl hergestellt werden kann. Durch das Schweißverfahren können zudem die Bandrollen in unterschiedlichen Positionen an die Bandlappen angeschweißt werden, wodurch möglichen Kundenwünschen Rechnung getragen werden kann.Advantageously, z. As the hinge flap, which is almost invisible when installed, are prefabricated from less expensive Stah1, whereas the tape roll made of brass, copper, aluminum, stainless steel or steel can be made. The welding process also allows the tape rolls to be welded to the hinge tabs in different positions, thereby accommodating possible customer requests.

Vorteilhaft wird ein Laserschweißverfahren zur Verbindung von Bandrolle mit Bandlappen angewendet. Der Vorteil des Laserschweißverfahrens gegenüber herkömmlichen Schweißverfahren ist die Einsparung von Material, wobei zudem keine Schweißzusätze benötigt werden und die Bandlappen und die Bandrollen mit hoher Präzision bei geringem Energieverbrauch miteinander verbunden werden können.Advantageously, a laser welding method is used for the connection of tape roll with hinge tab. The advantage of the laser welding process compared to conventional welding methods is the saving of material, in addition, no welding consumables are needed and the hinge tabs and the tape rolls can be connected to each other with high precision and low energy consumption.

Vorteilhaft werden die Bandrollen in einem Arbeitsgang z. B. als Kaltfließpressteil hergestellt. Optional kann das Bandrollenteil auch eine kopf- oder fußseitige Abdeckung aufweisen, die in einem Arbeitsgang beim Kaltfließpressen mit angeformt bzw, ausgestaltet wird.Advantageously, the tape rolls in a single operation z. B. produced as a cold extruded part. Optionally, the tape roll part also have a head or foot side cover, which is integrally formed in one operation during cold extrusion or, is configured.

Bei aus dem Stand der Technik bekannten Scharnieren, welche aus Strangpressprofilen hergestellt werden, müssen die auf Länge geschnittenen Profile aufwendig nachbearbeitet werden. Insbesondere beim Herausfräsen von Material für die Bandrolle der korrespondierenden Bandhälfte geht viel Material verloren. Zudem ist der Herstellungsprozess sehr aufwendig und daher teuer. Beim erfindungsgemäßen Scharnier kann in vorteilhafter Weise der Bandlappen z.B. ein gestanztes tiefgezogenes Teil sein, welches in seiner Form an jedes beliebige Fenster- oder Türprofil angepasst werden kann, und dass nach dem Tiefziehen mit den Bandrollen lediglich verschweißt werden muß. Hierdurch ergibt sich ein einfaches Fertigungsverfahren, bei dem wenig Material verloren geht und zudem wenige Fertigungsschritte erforderlich sind. Selbstverständlich ist es auch möglich, dass der Bandlappen ein auf Länge geschnittenes Strangpressprofil ist, welches mit der bzw. den Bandrollen verschweißt wird.In known from the prior art hinges, which are made of extruded profiles, cut to length profiles must be elaborately reworked. In particular, when milling out material for the tape roll of the corresponding band half much material is lost. In addition, the manufacturing process is very complicated and therefore expensive. In the case of the hinge according to the invention, the hinge flap can be advantageously made e.g. be a stamped deep-drawn part, which can be adapted in shape to any window or door profile, and that after deep drawing with the tape rolls must only be welded. This results in a simple manufacturing process in which little material is lost and also few manufacturing steps are required. Of course, it is also possible that the hinge tab is a cut to length extruded profile, which is welded to the or the tape rolls.

Nachfolgend werden anhand von Figuren verschiedene mögliche Ausführungsformen einer Bandhälfte eines Scharniers näher erläutert.Hereinafter, various possible embodiments of a band half of a hinge will be explained in more detail with reference to figures.

Es zeigen:

Figur 1:
Verschiedene Bandrollen und Bandlappenteile;
Figur 2:
Mögliche Kombinationen von Bandrollen und Bandlappen.
Show it:
FIG. 1:
Various tape rolls and tape tab parts;
FIG. 2:
Possible combinations of tape rolls and hinge laps.

Die Figur 1 zeigt auf ihrer linken Hälfte, drei verschiedene Bandrolle RA, RB und RC, wobei die einzelnen Bandrollen Ri sich im Außen- und Innendurchmesser sowie in ihrer Wandstärke voneinander unterscheiden. In der rechten Figurenhälfte sind drei verschiedene mögliche Formen von Bandlappen L1, L2 und L3 dargestellt, welche quasi beliebig mit den links in der Figur 1 dargestellten Rollenbändern Ri kombiniert und verschweißt werden können.The FIG. 1 shows on its left half, three different reel R A , R B and R C , wherein the individual reels R i differ in outer and inner diameter and in their wall thickness from each other. In the right half of the figure, three different possible shapes of hinge tabs L 1 , L 2 and L 3 are shown, which almost arbitrarily with the left in the FIG. 1 shown roller bands R i can be combined and welded.

Die Figur 2 zeigt mögliche Kombinationen der in Figur 1 dargestellten Bandrollen Ri mit den Bandlappen L1, L2 und L3. Selbstverständlich ist es möglich, die Bandrollen Ri und Bandlappen Li in verschiedenen Winkeln und Positionen miteinander zu verbinden. Um die Bandhälften des erfindungsgemäßen Scharniers automatisch herzustellen, wird vorteilhaft eine Vorrichtung verwendet, die die Bandrollen Ri und Bandlappen Li zueinander in Position hält, wobei dann automatisch mindestens eine Schweißnaht die beiden Teile miteinander verbindet. Selbstverständlich ist es möglich, dass an einem Bandlappen Li mehr als eine Bandrolle Ri befestigt bzw. angeschweißt wird. Ebenso ist es möglich, dass eine Zuführ- und/oder Entnahmeeinrichtung die Teile einer Halte- und Positionierungseinrichtung zuführt bzw. entnimmt, welche die Teile während des Schweißvorgangs zur Herstellung der Schweißnähte S zueinander in Position hält.The FIG. 2 shows possible combinations of in FIG. 1 shown tape rolls R i with the hinge tabs L 1 , L 2 and L 3 . Of course, it is possible to connect the tape rolls R i and hinge tabs L i at different angles and positions. In order to automatically produce the band halves of the hinge according to the invention, a device is advantageously used which holds the band reels R i and band tabs L i in position relative to one another, wherein then automatically at least one weld joint connects the two parts together. Of course, it is possible that more than one tape roll R i is attached or welded to a hinge flap L i . It is also possible for a supply and / or removal device to supply or remove the parts of a holding and positioning device which holds the parts in position relative to one another during the welding process for producing the weld seams S.

Claims (13)

Scharnier mit einer ersten und einer zweiten Bandhälfte, wobei die eine erste Bandhälfte ein Zargen- bzw. Rahmenteil und die andere zweite Bandhälfte ein Tür- bzw. Flügelteil ist, wobei zumindest eine Bandhälfte (Bii) mindestens eine Bandrolle (Ri) und einen Bandlappen (Li) hat, dadurch gekennzeichnet, dass die mindestens eine Bandrolle (Ri) an dem Bandlappen (Li) mittels Laserschweißverfahren angeschweißt ist.Hinge with a first and a second band half, wherein a first band half a Zargen- or frame part and the other second band half is a door or wing part, wherein at least one band half (B ii ) at least one tape roll (R i ) and a Tape tab (L i ) has, characterized in that the at least one tape roll (R i ) is welded to the hinge tab (L i ) by means of laser welding. Scharnier nach Anspruch 1, dadurch gekennzeichnet, dass die mindestens eine Bandrolle (Ri) und der Bandlappen (Li) aus unterschiedlichem Material sind.Hinge according to claim 1, characterized in that the at least one tape roll (R i ) and the hinge tab (L i ) are made of different material. Scharnier nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Wandstärke der mindestens einen Bandrolle (R1) und die Wandstärke des Bandlappens unterschiedlich ist.Hinge according to claim 1 or 2, characterized in that the wall thickness of the at least one strip roll (R 1 ) and the wall thickness of the hinge flap is different. Scharnier nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Wandstärke der mindestens einen Bandrolle (Ri) größer ist als die Wandstärke des Bandlappens (Li).Hinge according to claim 1 or 2, characterized in that the wall thickness of the at least one strip roll (R i ) is greater than the wall thickness of the hinge flap (L i ). Scharnier nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Bandlappen (Li) aus einem weniger edlen und/oder preiswerten Material gefertigt ist als die mindestens eine Bandrolle (Ri).Hinge according to one of the preceding claims, characterized in that the hinge flap (L i ) is made of a less noble and / or inexpensive material than the at least one roll of tape (R i ). Scharnier nach einem der vorhergehenden Ansprüche, dadurch gekennzeichet dass die Bandrolle (Ri) ein Kaltfließpressteil ist.Hinge according to one of the preceding claims, characterized gekennzeichet that the tape roll (R i ) is a cold extruded part. Scharnier nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Bandrolle (Ri) eine angeformte kopf- oder fußseitige Abdeckung, Verschluss oder Deckel hat.Hinge according to one of the preceding claims, characterized in that the tape roll (R i ) has an integrally formed head or foot-side cover, closure or lid. Verfahren zur Herstellung eines Scharniers nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die mindestens eine Bandrolle (Ri) mit dem Bandlappen (Li) mittels Laserschweißverfahren verschweißt wird.Method for producing a hinge according to one of the preceding claims, characterized in that the at least one strip roll (R i ) is welded to the hinge flap (L i ) by means of laser welding. Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass eine Positionier- und Haltevorrichtung die mindestens eine Bandrolle (Ri) und den Bandlappen (Li) zueinander positioniert und festhält, wobei die Schweißverbindung bei zueinander positionierten Bandteilen erfolgt.A method according to claim 8, characterized in that a positioning and holding device which positions and holds at least one tape roll (R i ) and the hinge tab (L i ) to each other, wherein the welded connection takes place at mutually positioned hinge parts. Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass mittels der Positionier- und Haltevorrichtung die mindestens eine Bandrolle (Ri) und der Bandlappen (Li) in verschiedenen vorgebbaren Positionen zueinander für das Schweißverfahren positioniert werden.A method according to claim 9, characterized in that by means of the positioning and holding device, the at least one tape roll (R i ) and the hinge tab (L i ) are positioned in different predetermined positions to each other for the welding process. Verfahren nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass eine Zuführeinrichtung der Positionier- und Haltevorrichtung die Bandrollen (Ri) und Bandlappen (Li) automatisch zuführt.A method according to claim 9 or 10, characterized in that a feeding device of the positioning and holding device, the tape rolls (R i ) and hinge tabs (L i ) automatically feeds. Verfahren nach einem der Ansprüche 9 bis 11, dadurch gekennzeichnet, dass eine Entnahmevorrichtung die fertig geschweißten Scharnierhälften der Positionier- und Haltevorrichtung entnimmt und einer Ablage- oder einem Sammelbehältnis zuführt.Method according to one of claims 9 to 11, characterized in that a removal device removes the finished welded hinge halves of the positioning and holding device and a storage or a collection container supplies. Verfahren nach einem der Ansprüche 9 bis 12, dadurch gekennzeichnet, dass der Bandlappen ein gestanztes und/oder tiefgezogenes Teil oder ein auf Länge geschnittenes Profil ist.Method according to one of claims 9 to 12, characterized in that the hinge flap is a stamped and / or deep-drawn part or a cut profile to length.
EP08014054A 2007-08-07 2008-08-06 Hinge and manufacturing method therefor Withdrawn EP2022918A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710037161 DE102007037161A1 (en) 2007-08-07 2007-08-07 Hinge and manufacturing process for it

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EP2022918A2 true EP2022918A2 (en) 2009-02-11
EP2022918A3 EP2022918A3 (en) 2009-06-03

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EP08014054A Withdrawn EP2022918A3 (en) 2007-08-07 2008-08-06 Hinge and manufacturing method therefor

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009031829C5 (en) * 2009-07-03 2019-01-24 Eco Schulte Gmbh & Co. Kg Band of few parts and manufacturing process for this

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE80264C (en) *
AU6179373A (en) * 1972-10-26 1975-04-24 Tamio International Pty. Ltd Welding method and apparatus
DE10210507A1 (en) * 2002-03-11 2003-10-02 Ralf Pohl Hinge for door, window or furniture has eyes to accommodate hinge pin welded or fastened by interlocking joints to flat hinge plates

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20203866U1 (en) * 2002-03-11 2002-08-29 Pohl Ralf hinge
DE202005004373U1 (en) * 2005-03-18 2006-08-03 Dr. Hahn Gmbh & Co. Kg hinge flap
DE102005022053B3 (en) * 2005-05-09 2007-01-18 Dr. Hahn Gmbh & Co. Kg Production process for belt hinge involves assembling fixing part from several components of different mechanical properties

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE80264C (en) *
AU6179373A (en) * 1972-10-26 1975-04-24 Tamio International Pty. Ltd Welding method and apparatus
DE10210507A1 (en) * 2002-03-11 2003-10-02 Ralf Pohl Hinge for door, window or furniture has eyes to accommodate hinge pin welded or fastened by interlocking joints to flat hinge plates

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DE102007037161A1 (en) 2009-02-12
EP2022918A3 (en) 2009-06-03

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