DE3726079A1 - Door frames of commercial vehicles, in particular buses, with a hollow-section framework comprising vertical and horizontal supports - Google Patents

Door frames of commercial vehicles, in particular buses, with a hollow-section framework comprising vertical and horizontal supports

Info

Publication number
DE3726079A1
DE3726079A1 DE19873726079 DE3726079A DE3726079A1 DE 3726079 A1 DE3726079 A1 DE 3726079A1 DE 19873726079 DE19873726079 DE 19873726079 DE 3726079 A DE3726079 A DE 3726079A DE 3726079 A1 DE3726079 A1 DE 3726079A1
Authority
DE
Germany
Prior art keywords
door frame
vertical
hollow
side surfaces
connecting pieces
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.)
Ceased
Application number
DE19873726079
Other languages
German (de)
Inventor
Ulrich Dr Breitling
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.)
MAN Truck and Bus SE
Original Assignee
MAN Nutzfahrzeuge AG
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 MAN Nutzfahrzeuge AG filed Critical MAN Nutzfahrzeuge AG
Priority to DE8717616U priority Critical patent/DE8717616U1/de
Priority to DE19873726079 priority patent/DE3726079A1/en
Publication of DE3726079A1 publication Critical patent/DE3726079A1/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00—Doors
    • B60J5/04—Doors arranged at the vehicle sides
    • B60J5/0497—Doors arranged at the vehicle sides for load transporting vehicles or public transport, e.g. lorries, trucks, buses

Abstract

Technical object. The intention is to design the junction points in the region of the pillar upper-flange connection of the door frames in such a manner that high engineering strength at minimum welding stresses is obtained. Solution of the technical object. The hollow section of the vertical (1) or horizontal support (4a, 4b) of the door frame (6) is cut out in the region of its connecting point to the respective other support (4a, 4b or 1), in the central part of its side surfaces, in such a manner that U-shaped connecting pieces (2) are produced in the corner region of the frame, which can be deformed to give a desired transition contour and can be connected to the respective connecting support. The openings (5) produced in the central part of the side surfaces of the hollow sections can be closed by inserting correspondingly contoured sheet-metal parts. Area of application. Buses. <IMAGE>

Description

Die Erfindung betrifft einen Türrahmen an Nutzfahrzeugen, insbesondere Omnibussen, mit einem aus Vertikal- und Hori­ zontalträgern bestehenden Gerippe aus Hohlprofilen.The invention relates to a door frame on commercial vehicles, especially buses, with one of vertical and Hori frameworks made of hollow profiles.

Es sind geschweißte Rohrgerippekonstruktionen bekannt. Die maximalen Beanspruchungen treten häufig an den Knotenpunkten auf. Hier verbessern zum Teil eingeschweißte Verstärkungen, z. B. Knotenbleche, die Betriebsfestigkeit. Allerdings erge­ ben sich an den Schweißnähten, insbesondere am Auslauf sol­ cher Verstärkungen, durch mehrdimensionale Spannungszustände wieder kritische Punkte, die den Nutzen solcher Maßnahmen reduzieren. Durch Messung und Schadensanalyse sind die Stel­ len höchster Beanspruchung im Bereich der Pfosten-Obergurt­ verbindung bei Türöffnungen von Omnibussen gut bekannt. Die allgemein verwendeten breiten Pfostenprofile lassen sich ins­ gesamt nicht sinnvoll verformen, ein Zusammensetzen aus meh­ reren Profilen bringt unerwünschte Schweißnähte mit sich und ist darüber hinaus auch noch unwirtschaftlich.Welded tubular frame constructions are known. The maximum stresses often occur at the nodes on. Here partially welded reinforcements improve e.g. B. gusset plates, durability. Erge, however ben at the welds, especially at the outlet sol reinforcements, through multi-dimensional stress states again critical points, the benefit of such measures to reduce. The stel len the highest stress in the area of the post upper chord connection well known for door openings of buses. The Generally used wide post profiles can be ins overall not meaningfully deform, a combination of several reren Profiles brings unwanted welds with it and is also uneconomical.

Der Erfindung liegt die Aufgabe zugrunde, Knotenpunkte im Bereich der Pfosten-Obergurtverbindungen der Türrahmen der­ art auszubilden, daß eine hohe Betriebsfestigkeit bei mini­ malen Schweißspannungen erzielt wird und eine wirtschaftli­ che Herstellung gewährleistet ist.The invention has for its object, nodes in Area of the mullion top flange connections of the door frames of the art to train that a high operational stability with mini paint welding voltages is achieved and an economical che production is guaranteed.

Dies wird erfindungsgemäß dadurch erreicht, daß das Hohlpro­ fil des Vertikal- oder Horizontalträgers im Bereich seiner Anschlußstelle an den jeweiligen anderen Träger im Mittel­ teil seiner Seitenflächen derart ausgeschnitten ist, daß U-förmige Anschlußstücke im Bereich des Rahmens entstehen, die zu einer gewünschten Übergangskontur verformbar und mit dem jeweiligen Anschlußträger verbindbar sind. Eine solche Gestaltung der Verbindung von einem Vertikalträger mit ei­ nem Horizontalträger bringt den Vorteil eines allmählichen Überganges ohne den Nachteil einer Schweißung im kritischen Bereich mit sich. Solcherart werden mehrdimensionale Span­ nungszustände vermieden. Zusätzlich ist eine Steigerung der örtlichen Dauerwechsel-Belastbarkeit durch Druckvorspannung infolge Kaltverformung in der Randzone erreichbar, indem die nach Ausschneiden des Mittelbereiches verbleibenden U-Profile über ihre Rücken in kaltem Zustand leicht in die gewünschte Form gebogen werden können. Nach einem weiterbil­ denden Merkmal der Erfindung sind die im Mittelteil der Sei­ tenflächen der Rohrprofile entstandenen Öffnungen durch Ein­ setzen von entsprechend konturierten Blechteilen verschließ­ bar. Solcherart wird neben einer weiteren Verstärkung ein gutes Erscheinungsbild des Türrahmens erzielt.This is achieved according to the invention in that the Hohlpro fil of the vertical or horizontal beam in the area of its Connection point to the other carrier on average part of its side surfaces is cut out in such a way that U-shaped connectors are created in the area of the frame, which can be deformed into a desired transition contour and with  the respective connection carrier are connectable. Such Design of the connection of a vertical beam with egg nem horizontal beam has the advantage of a gradual Transition without the disadvantage of welding in the critical Area with itself. Such are multi-dimensional chips conditions avoided. In addition, there is an increase in local permanent fatigue strength through pressure preload achievable due to cold deformation in the edge zone by those remaining after cutting out the central area U profiles over their backs in the cold easily in the desired shape can be bent. After a further Ending feature of the invention are those in the middle of the screen openings of the tubular profiles through openings of appropriately contoured sheet metal parts bar. This way, in addition to further reinforcement achieved good appearance of the door frame.

Weitere Vorteile und Merkmale der Erfindung sind den Ansprü­ chen, der speziellen Beschreibung und der Zeichnung zu entnehmen.Further advantages and features of the invention are the claims Chen, the special description and the drawing remove.

Die Erfindung ist in einem Ausführungsbeispiel dargestellt.The invention is shown in one embodiment.

Die einzige Figur zeigt einen Ausschnitt des Türrahmens 6 eines Omnibusses. Der Türrahmen 6 setzt sich zusammen aus Vertikalträgern 1 und Horizontalträgern 4 a, 4 b, die als Hohlprofile ausgebildet sind. Der mittlere Bereich der Sei­ tenflächen im Endbereich des Vertikalträgers ist ausge­ schnitten, wodurch U-förmige Anschlußstücke 2 entstehen, die zu der gewünschten Übergangskontur im Eckbereich des Türrahmens, z. B. durch Kaltpressen, verformbar sind. Die U-förmigen Anschlußstücke 2 werden mit dem Horizontalträ­ ger 4 a stumpf und/oder gegebenenfalls auch auslaufend in 3 mit dem durchgehenden Träger 4 b verschweißt. Solcher­ art entsteht eine hochbeanspruchbare Verbindung mit minima­ len Schweißspannungen. Die im Mitteilteil der Seitenflächen des Hohlprofils 1 entstandene Öffnung 5 ist durch ein ent­ sprechend konturiertes Blechteil verschlossen. Die aus dem Endbereich des Hohlprofils ausgeformten Anschlußstücke 2 können unterschiedliche Übergangskonturen aufweisen. Es kann aber auch nur auf einer Seite ein gebogenes Anschlußstück vorgesehen sein. Die Öffnung 5 endet vorzugsweise in einer Rundung 7.The only figure shows a section of the door frame 6 of an omnibus. The door frame 6 is composed of vertical beams 1 and horizontal beams 4 a , 4 b , which are designed as hollow profiles. The central area of the Be tenflächen in the end region of the vertical support is cut out, whereby U-shaped connecting pieces 2 arise, which to the desired transition contour in the corner region of the door frame, for. B. are deformable by cold pressing. The U-shaped connecting pieces 2 are butt-welded to the horizontal beam 4 a and / or optionally also in 3 with the continuous beam 4 b . Such a type creates a heavy-duty connection with minimal welding stresses. The opening 5 formed in the central part of the side faces of the hollow profile 1 is closed by a correspondingly contoured sheet metal part. The connecting pieces 2 formed from the end region of the hollow profile can have different transition contours. But it can also be provided on one side only a curved connector. The opening 5 preferably ends in a curve 7 .

Claims (5)

1. Türrahmen an Nutzfahrzeugen, insbesondere Omnibussen mit einem aus Vertikal- und Horizontalträgern bestehenden Ge­ rippe aus Hohlprofilen, dadurch gekennzeichnet, daß das Hohlprofil des Vertikal- (1) oder Horizontalträgers (4 a, 4 b) im Bereich seiner Anschlußstelle an den jeweiligen ande­ ren Träger im Mittelteil seiner Seitenflächen derart ausgeschnitten ist, daß U-förmige Anschlußstücke (2) im Eckbereich des Rahmens entstehen, die zu einer gewünsch­ ten Übergangskontur verformbar und mit dem jeweiligen An­ schlußträger verbindbar sind.1. Door frame on commercial vehicles, in particular buses with a Ge consisting of vertical and horizontal supports rib made of hollow profiles, characterized in that the hollow profile of the vertical ( 1 ) or horizontal support ( 4 a , 4 b ) in the area of its junction at the respective other Ren carrier is cut out in the middle part of its side surfaces such that U-shaped connecting pieces ( 2 ) arise in the corner region of the frame, which are deformable to a desired th transition contour and can be connected to the respective connection carrier. 2. Türrahmen nach Anspruch 1, dadurch gekennzeichnet, daß die U-förmigen Anschlußstücke (2) stumpf an einen unter­ brochenen (4 a) und/oder auslaufend (3) an einen durchlau­ fenden (4 b) Horizontalträger anschweißbar sind.2. Door frame according to claim 1, characterized in that the U-shaped connecting pieces ( 2 ) butt to an intermittent ( 4 a ) and / or leaking ( 3 ) to a continuous fender ( 4 b ) horizontal beam can be welded. 3. Türrahmen nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die im Mittelteil der Seitenflächen der Hohlprofile ent­ standenen Öffnungen (5) durch Einsetzen von entsprechend konturierten Blechteilen verschließbar sind.3. Door frame according to claim 1 or 2, characterized in that the openings in the central part of the side surfaces of the hollow profiles ent ( 5 ) can be closed by inserting appropriately contoured sheet metal parts. 4. Türrahmen nach den Ansprüchen 1 bis 3, dadurch gekenn­ zeichnet, daß die aus dem Endbereich des Hohlprofils aus­ geformten Anschlußstücke (2) unterschiedliche Übergangs­ konturen aufweisen.4. Door frame according to claims 1 to 3, characterized in that from the end region of the hollow profile from molded connecting pieces ( 2 ) have different transition contours. 5. Türrahmen nach den Ansprüchen 1 bis 3, dadurch gekenn­ zeichnet, daß das Hohlprofil nur ein einseitig aufgeboge­ nes Anschlußstück (2) aufweist.5. Door frame according to claims 1 to 3, characterized in that the hollow profile has only a one-sided bent NES connector ( 2 ).
DE19873726079 1987-08-06 1987-08-06 Door frames of commercial vehicles, in particular buses, with a hollow-section framework comprising vertical and horizontal supports Ceased DE3726079A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8717616U DE8717616U1 (en) 1987-08-06 1987-08-06
DE19873726079 DE3726079A1 (en) 1987-08-06 1987-08-06 Door frames of commercial vehicles, in particular buses, with a hollow-section framework comprising vertical and horizontal supports

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873726079 DE3726079A1 (en) 1987-08-06 1987-08-06 Door frames of commercial vehicles, in particular buses, with a hollow-section framework comprising vertical and horizontal supports

Publications (1)

Publication Number Publication Date
DE3726079A1 true DE3726079A1 (en) 1989-02-16

Family

ID=6333164

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8717616U Expired DE8717616U1 (en) 1987-08-06 1987-08-06
DE19873726079 Ceased DE3726079A1 (en) 1987-08-06 1987-08-06 Door frames of commercial vehicles, in particular buses, with a hollow-section framework comprising vertical and horizontal supports

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE8717616U Expired DE8717616U1 (en) 1987-08-06 1987-08-06

Country Status (1)

Country Link
DE (2) DE8717616U1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4142258A1 (en) * 1991-12-20 1993-06-24 Man Nutzfahrzeuge Ag Reduced stress welded frames for vehicle doors and windows - has shaped ends on vertical struts to fit horizontal frames on weld seams
US5382071A (en) * 1990-12-20 1995-01-17 Audi Ag Motor vehicle with a central pillar constituted by an extruded section
WO2003084802A1 (en) 2002-04-09 2003-10-16 Thyssenkrupp Stahl Ag Y-shaped node structure for the supporting frame of a motor vehicle
DE10215442A1 (en) * 2002-04-09 2003-11-06 Thyssenkrupp Stahl Ag Three-dimensional knot structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10359524A1 (en) * 2003-12-18 2005-07-14 Daimlerchrysler Ag Support structure for a cab

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE562994C (en) * 1930-08-06 1932-10-31 Curt Stedefeld Dipl Ing Dissolved carrier, especially for the horizontal formation of vehicles
DE894508C (en) * 1942-04-01 1953-10-26 Daimler Benz Ag Car body frame consisting of closed, box-shaped hollow beams, especially for large vehicles
DE1257024B (en) * 1954-06-21 1967-12-21 Budd Co Motor vehicle chassis frames

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE562994C (en) * 1930-08-06 1932-10-31 Curt Stedefeld Dipl Ing Dissolved carrier, especially for the horizontal formation of vehicles
DE894508C (en) * 1942-04-01 1953-10-26 Daimler Benz Ag Car body frame consisting of closed, box-shaped hollow beams, especially for large vehicles
DE1257024B (en) * 1954-06-21 1967-12-21 Budd Co Motor vehicle chassis frames

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DE-Z: Aluminium, 1955, Nr.9, S.414-418 *
JP 59 1 00 068 A. In: Patents Abstracts of Japan, M-329, Oct.3, 1984, Vol.8, No.216 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5382071A (en) * 1990-12-20 1995-01-17 Audi Ag Motor vehicle with a central pillar constituted by an extruded section
DE4142258A1 (en) * 1991-12-20 1993-06-24 Man Nutzfahrzeuge Ag Reduced stress welded frames for vehicle doors and windows - has shaped ends on vertical struts to fit horizontal frames on weld seams
WO2003084802A1 (en) 2002-04-09 2003-10-16 Thyssenkrupp Stahl Ag Y-shaped node structure for the supporting frame of a motor vehicle
DE10215442A1 (en) * 2002-04-09 2003-11-06 Thyssenkrupp Stahl Ag Three-dimensional knot structure
DE10215441A1 (en) * 2002-04-09 2003-11-06 Thyssenkrupp Stahl Ag Y-node structure
DE10215441B4 (en) * 2002-04-09 2004-02-19 Thyssenkrupp Stahl Ag Y-node structure
DE10215442B4 (en) * 2002-04-09 2004-02-19 Thyssenkrupp Stahl Ag Three-dimensional knot structure
US7389586B2 (en) 2002-04-09 2008-06-24 Thyssenkrupp Steel Ag Method for producing a Y-shaped node structure for the supporting frame of a motor vehicle
US7500802B2 (en) 2002-04-09 2009-03-10 Thyssenkrupp Steel Ag Three-dimensional node structure

Also Published As

Publication number Publication date
DE8717616U1 (en) 1989-05-11

Similar Documents

Publication Publication Date Title
EP0916534B1 (en) Construction of a vehicle door
DE10040824B4 (en) Steering column support beam structure
DE10108287B4 (en) body structure
EP0561834B1 (en) Motor vehicle with a central pillar constituted by an extruded section
DE4234463A1 (en) Method for producing a body support frame and a body frame produced by the method
DE2716260A1 (en) CARRYING FRAME, IN PARTICULAR AS FRAME OF A BACKPACK
DE19515062A1 (en) Scaffold flooring of supported framed plates
DE102006036915A1 (en) Structure part for vehicle, has frame segments provided as roller-shaped or canted or pressed frame segment in longitudinally extending manner, where part includes beam running perpendicular to another beam
DE10215441B4 (en) Y-node structure
DE3726079A1 (en) Door frames of commercial vehicles, in particular buses, with a hollow-section framework comprising vertical and horizontal supports
WO1998039190A1 (en) Frame for fastening flat elements
DE102007018183A1 (en) Frame construction for large sized vehicle e.g. omni bus, has four profile bars connected with one another in area of associated joint under intervention of node element, where bars are placed at distance from one another
DE4313803A1 (en) Colour selection aperture grill mask for cathode ray tube - has bridging arms produced as steel pressing with U=shaped cross section between frame bars, both arms and bars having complementary surfaces.
EP0936326A1 (en) Scaffolding platform
EP0790902B1 (en) Process for manufacturing the frame of a back rest of a vehicle seat
DE19517918A1 (en) Chassis frame for vehicle
EP1231091A1 (en) Door for vehicle
WO2005018847A1 (en) Reinforced section
DE3546046A1 (en) Vertical frame for a scaffold
DE4142258C2 (en) Window and door frames as well as lattice structures in commercial vehicles
EP1583684B1 (en) Longitudinal beam for a vehicle
DE102013216821B4 (en) Body structure for a vehicle
EP1010837B1 (en) Metal scaffold board
EP0735212B1 (en) Frame for shuttering element
EP2881521A1 (en) Scaffold and vertical frame for a scaffold

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8131 Rejection