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WO2025008224A1 - Procédé de montage d'un élément de support tubulaire d'un véhicule automobile, en particulier d'un siège de véhicule, sur un autre élément ainsi que liaison entre un élément de support tubulaire et un autre élément - Google Patents

Procédé de montage d'un élément de support tubulaire d'un véhicule automobile, en particulier d'un siège de véhicule, sur un autre élément ainsi que liaison entre un élément de support tubulaire et un autre élément Download PDF

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Publication number
WO2025008224A1
WO2025008224A1 PCT/EP2024/067775 EP2024067775W WO2025008224A1 WO 2025008224 A1 WO2025008224 A1 WO 2025008224A1 EP 2024067775 W EP2024067775 W EP 2024067775W WO 2025008224 A1 WO2025008224 A1 WO 2025008224A1
Authority
WO
WIPO (PCT)
Prior art keywords
component
longitudinal direction
forming
end region
axial
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.)
Pending
Application number
PCT/EP2024/067775
Other languages
German (de)
English (en)
Inventor
Aram HÄRTIG
Danny Bartsch
Frank Schlemmer
Sven Neundorf
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.)
Brose Fahrzeugteile SE and Co KG
Original Assignee
Brose Fahrzeugteile SE 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 Brose Fahrzeugteile SE and Co KG filed Critical Brose Fahrzeugteile SE and Co KG
Publication of WO2025008224A1 publication Critical patent/WO2025008224A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08—Tube expanders
    • B21D39/20—Tube expanders with mandrels, e.g. expandable
    • B21D39/203—Tube expanders with mandrels, e.g. expandable expandable by fluid or elastic material
    • 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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/06—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes in openings, e.g. rolling-in
    • 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
    • B21D53/00—Making other particular articles
    • B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards

Definitions

  • the invention relates to a method for mounting a tubular support component of a motor vehicle, in particular a vehicle seat, which extends in a longitudinal direction on a further component, which has an opening into which an end region of the tubular structural component is introduced, wherein the end region is widened radially for an axial positive fastening to the further component to form an axial lock.
  • the invention further relates to a component connection between the tubular support component and the further component.
  • a tubular support component hereinafter also referred to as a support tube, for example a cross brace
  • a support tube for example a cross brace
  • another component for example a side part of the vehicle seat.
  • an end region of the support component is inserted through a (bearing) opening in the other component.
  • the end region of the support tube is radially expanded at least in some areas. This positive locking connection also serves in particular as crash protection.
  • Such a component connection between a support tube and another component can be found, for example, in DE 10 2015 206 461 A1 or also in DE 20 2015 003 006 U1.
  • the required forming and widening of the end area are each carried out in a two-stage process, whereby in a first step the end area is pre-formed at certain points using a tool that has conically expanding forming parts and then in a second step the final expansion is also carried out using conically expanding forming elements.
  • retaining rings are provided to secure the additional component to the support tube.
  • the forming is generally carried out in such a way that an expanding forming tool is pressed into the carrier tube in the longitudinal direction, so that the force acting in the longitudinal direction increases the diameter of one end face of the carrier tube to form the axial lock.
  • the additional component is usually secured axially on both sides between the axial securing element and another abutment, for example an inner flange, an inner sleeve or an inner fold of the support tube.
  • the additional component and the tubular support component are usually mounted on one another in a rotationally movable manner. This enables the additional component to pivot about an axis of rotation formed by the support component.
  • a bearing component in particular a plain bearing bush, is often mounted between the support component and the additional component.
  • Radial displacement is understood here to mean that at least one portion of the forming mandrel is displaced in the radial direction and in particular only in the radial direction, so that the portion preferably exerts exclusively a radial forming force. Due to the radial displacement of at least one section, widening of the end region using conically expanding forming elements that are driven into the support tube in the axial direction is therefore not necessary and is also not provided for. For the forming process, therefore, preferably no axial forces are transferred to the support tube.
  • the forming mandrel is first inserted longitudinally into the tubular support component, up to a predetermined end position or forming position. When inserted longitudinally, no forming of the end region takes place. In particular, the forming mandrel does not exert any radial or axial forces on the pipe casing. Only after the predetermined forming position has been reached does the radial forming take place by radially displacing at least one section.
  • a circumferential wall region of the end region, which adjoins the at least one axial securing element in the circumferential direction, is not deformed during the forming and/or retains its original orientation, in particular parallel to the longitudinal direction. In the finished component connection, this circumferential wall region therefore runs in the longitudinal direction, in particular parallel to this.
  • an axial wall region of the end region, which adjoins the at least one axial securing element axially and thus counter to the longitudinal direction in the direction of the end face is not deformed during the forming and/or retains its original orientation, in particular parallel to the longitudinal direction. In the finished component connection, this axial wall region therefore runs in the longitudinal direction, in particular parallel to this.
  • the forming is preferably carried out at a distance from the end face so that it is not influenced by the forming process as much as possible.
  • the axial wall area of the end area adjacent to the end face is not deformed.
  • the forming mandrel has several sections that can be moved relative to one another in the radial direction.
  • the sections are preferably moved in opposite directions in the radial direction. This causes the forming mandrel as a whole to be spread or widened, and its radial dimensions are thus increased.
  • the multiple sections preferably form a sleeve, so that they define a hollow space between them.
  • the sections form, for example, multiple circumferential segments of a slotted sleeve.
  • the forming mandrel has an expanding mandrel which is displaced in the longitudinal direction for the radial displacement of the at least one part relative to the latter.
  • the expanding mandrel exerts a radial force on the at least one part so that the latter is pressed radially outwards and causes the radial deformation.
  • the expanding mandrel is therefore driven in the longitudinal direction between the parts and in particular into the previously mentioned cavity with an axially acting force.
  • the expanding mandrel is conical and therefore widens in the longitudinal direction. It therefore generally has an outer surface oriented at an angle to the longitudinal direction, which interacts with and rests against an inner contact surface of the at least one part. This inner contact surface is preferably also tapered.
  • the at least one section is in particular a shell-shaped element which extends in the longitudinal direction. This has an outer side which - viewed in the longitudinal direction in plan view - is curved in particular in an arc shape. It preferably has a radius which corresponds to an inner radius of the tubular support component. The outer side of the at least one section therefore lies in particular over its entire surface against the inner wall of the tubular support component.
  • the part generally has at least one radially outwardly projecting forming element on its outside.
  • the part itself has, for example, a bulge or deformation that forms the forming element.
  • the forming element is in particular a radially projecting knob or rib.
  • the object is further achieved by a component connection between a tubular support component and another component with the features of claim 9.
  • the advantages and preferred embodiments mentioned in connection with the method can also be transferred analogously to the component connection and vice versa.
  • the component connection is produced in particular by the previously described (assembly) method.
  • the tubular support component is inserted through the opening of the further component with its end region and has at least one axial securing element, which is formed by a radial deformation of at least a partial section of the wall of the tubular support component in a partial section. Since only a radial deformation takes place by a radial displacement and no conical spreading by driving in a conical deformed part, the component connection is characterized in particular in that at least one and preferably at least two or all of the following features are met:
  • the end face is oriented parallel to a vertical plane to which the longitudinal direction is perpendicular.
  • a circumferential wall region of the tubular support component, which adjoins the at least one axial securing element in the circumferential direction, runs parallel to the longitudinal direction; this applies to the outside and/or the inside of the wall region.
  • An axial wall region of the tubular support component which adjoins the at least one axial securing element axially and in particular counter to the longitudinal direction in the direction of the end face, runs parallel to the longitudinal direction.
  • the end region preferably has a plurality of discrete axial securing elements in the circumferential direction, which are thus each formed by a deformation.
  • Circumferential wall regions which extend in the circumferential direction between the discrete axial securing elements preferably run parallel to the longitudinal direction, ie axially extending components of the circumferential wall regions run parallel to the longitudinal direction.
  • This component connection is in particular part of a motor vehicle, specifically part of a vehicle seat of such a motor vehicle.
  • the tubular support component (support tube) is in particular a cross tube and the other component is a side part, for example of a seat pan, a seat part or a backrest part of a vehicle seat.
  • the side parts are usually formed sheet metal parts.
  • the further component is usually secured axially in both directions, on the one hand by the at least one formed axial securing element and on the other hand by a further positive-locking securing element, which can be, for example, an abutment attached to the tubular supporting component, for example a flange or a circumferential fold or bulge of the supporting component itself.
  • the additional component is rotatably mounted on the tubular support component.
  • the opening of the additional component therefore forms a bearing eye in which the tubular support component is mounted.
  • the additional component is arranged and mounted in particular directly adjacent to the at least one axial securing element. Due to the precise positioning and the defined deformation, the additional component can be mounted close to the axial securing element without the risk of it becoming difficult to move.
  • a bearing element in particular a (sliding) bearing bush, is preferably arranged between the supporting component and an inner wall of the opening of the further component.
  • the component connection 2 shown in the figure is formed between a tubular support component 4 and a further component 6.
  • the tubular support component 4 extends in the longitudinal direction L.
  • the component connection 2 is in particular part of a vehicle seat of a motor vehicle.
  • the tubular support component 4 is a cross tube which connects two opposite side parts of the vehicle seat to one another.
  • the two side parts are each formed by the further component 6.
  • the further component 6 is, for example, a side cheek of a backrest, a seat pan or a seat support.
  • the further component 6 is preferably mounted on the support component 4 so as to be rotatable or at least pivotable about a rotation axis 8.
  • the further component has an opening 9 designed in the manner of a bearing eye, through which the support component is guided with an end region 16.
  • the axis of rotation 8 is defined in particular by a center axis of the tubular support component 4 and thus runs in the longitudinal direction L.
  • a bearing in particular a bearing bush 10
  • the bearing bush 10 is L-shaped in the exemplary embodiment when viewed in a half section, i.e. it has a cylindrical bush part extending in the longitudinal direction L and an annular flange adjoining it at the end.
  • axial securing elements 20 are formed in this end region 16 in the exemplary embodiment, namely by radially deforming and widening the tubular casing of the supporting component 4 at discrete locations. For example, a total of 3 to 8 and in particular 4 to 6 individual discrete securing elements 20 are formed distributed around the circumference and in particular evenly distributed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

Pour former un assemblage d'éléments (2) entre un élément de support (4) tubulaire s'étendant dans une direction longitudinale (L) et un autre élément (6), en particulier un siège de véhicule, une zone d'extrémité (16) de l'élément de support (4) est insérée dans une ouverture (9). Pour réaliser une fixation axiale par complémentarité de formes sur l'autre élément (6), la zone d'extrémité (16) est élargie radialement à l'aide d'un mandrin de formage (22) pour former au moins un élément de blocage (20) axial, en déformant la zone d'extrémité (16) par un décalage radial d'au moins une partie (24) du mandrin de formage (22). On renonce à réaliser un écartement conique de la zone d'extrémité (16). Ainsi, la sollicitation exercée sur la zone d'extrémité (16) est maintenue à un faible niveau.
PCT/EP2024/067775 2023-07-06 2024-06-25 Procédé de montage d'un élément de support tubulaire d'un véhicule automobile, en particulier d'un siège de véhicule, sur un autre élément ainsi que liaison entre un élément de support tubulaire et un autre élément Pending WO2025008224A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102023206450.2 2023-07-06
DE102023206450.2A DE102023206450A1 (de) 2023-07-06 2023-07-06 Verfahren zur Montage eines rohrförmigen Tragbauteils eines Kraftfahrzeuges, insbesondere eines Fahrzeugsitzes, an einem weiteren Bauteil sowie Verbindung zwischen einem rohrförmigen Tragbauteil und einem weiteren Bauteil

Publications (1)

Publication Number Publication Date
WO2025008224A1 true WO2025008224A1 (fr) 2025-01-09

Family

ID=91738247

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2024/067775 Pending WO2025008224A1 (fr) 2023-07-06 2024-06-25 Procédé de montage d'un élément de support tubulaire d'un véhicule automobile, en particulier d'un siège de véhicule, sur un autre élément ainsi que liaison entre un élément de support tubulaire et un autre élément

Country Status (2)

Country Link
DE (1) DE102023206450A1 (fr)
WO (1) WO2025008224A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US943907A (en) * 1908-07-16 1909-12-21 George Austin Flue-expander.
EP2002909A1 (fr) * 2006-04-06 2008-12-17 Showa Denko K.K. Procede de jonction d'elements
WO2009057673A1 (fr) * 2007-10-31 2009-05-07 Showa Denko K.K. Procédé de fabrication d'un tuyau à brides
JP5019791B2 (ja) * 2006-06-05 2012-09-05 昭和電工株式会社 パイプのエキスパンド加工装置
US8393067B2 (en) * 2007-09-25 2013-03-12 Showa Denko K.K. Connection device for connection between pipe and connection member
DE202015003006U1 (de) 2015-04-24 2016-07-27 PREMETEC Automation GmbH Vorrichtung zur Montage eines Verstellelements eines Fahrzeugsitzuntergestells und Schwächungsstempel
DE102015206461A1 (de) 2015-04-10 2016-10-13 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Verfahren zur Umformung eines rohrförmigen Strukturbauteils für Kraftfahrzeugsitze

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU498702B2 (en) * 1975-03-12 1979-03-22 Sekisui Kagaku Kogyo Kabushiki Kaisha Forming an annular groove ina thermoplastic pipe
DE102005039784A1 (de) * 2005-08-22 2007-03-08 Claas Fertigungstechnik Gmbh Verfahren und Vorrichtung zum drehfesten Verbinden einer Hohlwelle mit einem Bauteil

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US943907A (en) * 1908-07-16 1909-12-21 George Austin Flue-expander.
EP2002909A1 (fr) * 2006-04-06 2008-12-17 Showa Denko K.K. Procede de jonction d'elements
JP5019791B2 (ja) * 2006-06-05 2012-09-05 昭和電工株式会社 パイプのエキスパンド加工装置
US8393067B2 (en) * 2007-09-25 2013-03-12 Showa Denko K.K. Connection device for connection between pipe and connection member
WO2009057673A1 (fr) * 2007-10-31 2009-05-07 Showa Denko K.K. Procédé de fabrication d'un tuyau à brides
DE102015206461A1 (de) 2015-04-10 2016-10-13 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Verfahren zur Umformung eines rohrförmigen Strukturbauteils für Kraftfahrzeugsitze
DE202015003006U1 (de) 2015-04-24 2016-07-27 PREMETEC Automation GmbH Vorrichtung zur Montage eines Verstellelements eines Fahrzeugsitzuntergestells und Schwächungsstempel

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Publication number Publication date
DE102023206450A1 (de) 2025-01-09

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