DE102014210139A1 - Component connection with crimped bolt element - Google Patents

Abstract

The present invention relates to a component connection with at least two components (1, 2), z. B. on a vehicle seat (F), which are at least one bolt element (3, 3 *) fixed to each other by the bolt element (3, 3 *) with a portion (32, 32 *) from one side of a first component (1 ) is inserted through aligned with each other through openings (10, 20) of the components (1, 2) and the inserted portion (32, 32 *) on an opposite side of a second component (2) is axially secured. According to the invention, the section (32, 32 *) which is inserted through the passage openings (10, 20) has a form-locking connection with a fixing region (21) which projects over the passage opening (20) of the second component (2) and protrudes on the second component (2) is compressed.

Description

The present invention relates to a component connection with at least two components according to the preamble of claim 1 and a method for producing such a component connection.

For connecting two components different possibilities are known. In order to save weight and costs, many parts are preferably welded in the vehicle area, in particular in the case of vehicle seats. During assembly, however, the accessibility of the components to be joined together may be limited, so that a weld is not readily feasible. Therefore continue to find multiple component connections with fasteners in the form of screws, rivets or bolts use.

It is particularly known to perform heavily loaded component connections with a bolt element in the manner of a locking ring bolt. In this case, a bolt element is inserted through through openings of at least two components to be connected to one another such that a section of the locking bolt protrudes on one side of the components. At this from the through holes projecting portion of the locking bolt then a locking ring is pressed to lock the locking bolt axially and permanently fix the components together. However, a mounting is comparatively time-consuming in such a bolt connection, since not only the locking ring bolt must be arranged on the components to be joined, but also the separate locking ring still brought to the two components and must be mechanically added.

On this basis, the present invention seeks to provide an improved, alternative component connection, in particular for use in vehicle seats, which is suitable for fixing highly loaded components together and with as few parts as possible.

This object is achieved both with the component connection of claim 1 and the method of claim 13.

According to the invention, a component connection is provided with at least two components which are fixed to one another via at least one bolt element by the bolt element being inserted with a section from one side of a first component through through openings of the components to be connected and the inserted section on an opposite side Side of a second component is thereby axially secured, that the inserted portion is pressed positively with a the opening of the second component bordering and projecting on the second component fixing area.

Here, therefore, a kind of locking ring bolt connection is realized in which the locking ring is formed directly from one of the components to be connected as a projecting fixing area. In this case, it is preferred if the inserted portion of the bolt element has at least one form-locking region, is pressed into the material of the fixing region. Accordingly, such a form-fitting region comprises, for example, at least one recess on a lateral surface of the bolt element in the form of a groove, a groove, a groove or a thread. Such a form-fitting region thus presents itself, for example, as a recess running transversely to a longitudinal direction of the bolt element, into which material of the fixing region is pressed during assembly in order to fix the components to one another via the bolt element.

In one embodiment, a plurality along a longitudinal axis of the bolt member arranged side by side and preferably each circumferential in a circumferential direction grooves are provided. The grooves may in this case be formed and arranged symmetrically at the inserted portion. Alternatively, an asymmetric configuration of the grooves may be provided to allow for an adapted and better load distribution.

The individual grooves may also be provided with a slope, so as to release the components again from each other, if necessary, without having to destroy the components. Furthermore, pre-notches can be formed, in particular on form-fitting regions in the form of grooves, which can serve as an assembly aid when the bolt element is inserted.

The bolt element is preferably cylindrical. In one embodiment, however, the bolt element can also be conically shaped, at least in the region of the section inserted through the passage opening.

About the inserted and positively pressed with one of the components bolt element, for example, a play-free pivot bearing can be realized in a particularly simple manner, as well as a rigid connection of several (at least two) components together. For the formation of a pivot bearing point, it is provided, for example, that a shank portion, which is provided below a head of the bolt element and which is inserted into a passage opening of the components to be connected to one another, forms a physical axis of rotation for one of the components. To the Bolt element is thus one of the components rotatably mounted relative to the second component, with which the bolt element is pressed positively. Thus, with a component connection according to the invention simple and cost-effective pivot bearing points for adjustment mechanisms on a vehicle seat form, for example, a seat height adjustment and / or seat longitudinal adjustment and / or setting a tilt of a backrest of the vehicle seat.

In one embodiment variant, the fixing region projecting on the second component is formed like a collar or sleeve. In this case, a collar-shaped or sleeve-shaped fixing region is preferably formed by a passage.

In particular, for use in the vehicle sector, it is also considered advantageous if the fixing region protrudes with a length on the second component, which corresponds to a multiple of a wall thickness of the second component in the region of its passage opening. By way of example, the length with which the fixing region protrudes collar-shaped or sleeve-shaped on the second component corresponds to up to 3 times the wall thickness of the second component in the region of the through-opening.

The second component, on which the projecting fixing region is formed, is preferably a metallic component, in which the projecting fixing region is produced by laser-assisted collar molding. For this purpose, for example, a laser can be integrated in a punching tool in order to make the material of the second component malleable in the region of the collar of the fixing area to be produced.

Thus, it is provided, for example, first to punch out the passage opening on the second component and then to heat the area around the punched through opening by means of the laser. In the heated area, the collar of the fixing area can then be produced by collar pulling. Such a manufacturing process enables the production of comparatively solid, thin and crack-free collar.

In an alternative production method, a pot or cup can first be drawn on the second component in a forming process. Subsequently, this pot or cup is heated by the laser to punch out the through hole. With such a production variant, it is possible to realize greater draft heights, since the strain hardening is reset by the subsequent heating.

The production of a collar-shaped or sleeve-shaped, protruding fixing region on the second component is also possible by flow-hole drilling. This is particularly advantageous for thin-walled components. In this case, the energy introduced by rotation and the contact force is utilized in order to soften a high-strength material, from which the second component is produced, and thus to facilitate the formability. The material, which flows counter to the drilling direction during the process, can be received here, for example, by means of a fillet weld below a head of the bolt element or by a pre-embossing operation. By the pre-embossing, on the one hand, an opening on the immersion side can be "hidden" and a collar length, that is, the length with which the collar-shaped fixation area protrudes, can be significantly increased.

By way of the described production variants, a second component with a protruding fixing region can be provided in a particularly advantageous manner, which is to be pressed together with the inserted bolt element. However, it is of course possible to otherwise produce such a fixation area.

The bolt element may comprise, for example, a commercially available lockbolts. In such an embodiment, a component connection is indeed realized with a commercially available locking ring bolt. Due to the inventive design of the component connection, however, a separate locking ring can be omitted, which must be brought to the components to be joined after insertion of the locking ring bolt and fixed to the locking bolt.

In an advantageous embodiment, a component connection according to the invention is used on a vehicle seat. By means of the component connection according to the invention, it is possible, in particular in a crash case, to fix highly stressed components together which are critical to failure. Thus, for example, a vehicle seat is provided in which at least two components of a seat frame and / or a back frame of the vehicle seat are fixed to each other via a component connection according to the invention. At least one of the components may also be part of a rail arrangement of the vehicle seat for adjusting a seat longitudinal position.

By way of example, the second component with the projecting fixing area formed thereon can comprise a retaining angle for the connection of a seat frame of the vehicle seat to a rail arrangement for seat longitudinal adjustment. A rigid bearing position for the connection of the seat frame with a displaceable rail of the rail arrangement can be provided via the bolt element or a pivot bearing of the seat frame for the seat height adjustment.

Alternatively or additionally, a so-called height adjustment lever, which forms part of a height adjustment mechanism of the vehicle seat, form a projecting and with a bolt element positively to be pressed fixing area.

• – Lagerwinkel für die Lagerung eines Getriebeelements eines Verstellmechanismus zur Sitzlängsverstellung, wobei ein solches Getriebeelement beispielsweise durch ein Schneckenrad gebildet wird, das über den Lagerwinkel an einer Schiene einer Schienenanordnung des Fahrzeugsitz festgelegt wird;
• – Lehnenrahmenteil eines Lehnenrahmens einer Rückenlehne des Fahrzugsitzes;
• – Seitenteil für einen Sitzversteller des Fahrzeugsitzes:
• – Sitzrahmenteil eines Sitzgestells des Fahrzeugsitzes;
• – Sitzschale des Fahrzeugsitzes;
• – Koppelstange des Fahrzeugsitzes für die Übertragung einer Verstellkraft von einer an die andere Längsseite des Fahrzeugsitzes (z. B. zum Lösen und/oder Verrasten bei Rastbeschlägen);
• – Neigungsverstellsegment für die Neigungseinstellung einer Rückenlehne des Fahrzeugsitzes, insbesondere in Form eines Zahnsegments.

In one embodiment, a vehicle seat is provided in which one or more of the following components forms a component of a component connection according to the invention, in particular that component on which the projecting fixing region for the bolt element is formed:

• - Bearing angle for the storage of a transmission element of an adjustment mechanism for seat longitudinal adjustment, wherein such a transmission element is formed for example by a worm wheel, which is determined by the bearing angle to a rail of a rail assembly of the vehicle seat;
• - Lehnenrahmenteil a backrest frame of a backrest of the Fahrzugsitzes;
• - Side part for a seat adjuster of the vehicle seat:
• - Seating part of a seat frame of the vehicle seat;
• - Seat of the vehicle seat;
• - Coupling rod of the vehicle seat for the transmission of an adjusting force from one to the other longitudinal side of the vehicle seat (eg., For releasing and / or locking in locking fittings);
• - Neigungsverstellsegment for the inclination adjustment of a backrest of the vehicle seat, in particular in the form of a toothed segment.

Another aspect of the present invention is a method for producing a component connection, in particular to a vehicle seat.

• – Bereitstellen wenigstens eines ersten Bauteils und eines zweiten Bauteils, die jeweils mindestens eine Durchgangsöffnung aufweisen, wobei eine Durchgangsöffnung an dem zweiten Bauteil durch einen Fixierungsbereich berandet ist, der an einer Seite des zweiten Bauteils vorspringt,
• – Bereitstellen wenigstens eines längserstreckten Bolzenelements mit mindestens einem gegenüber einer Mantelfläche des Bolzenelements tiefer liegenden Formschlussbereich,
• – Anordnen der Bauteile aneinander, so dass die Durchgangsöffnungen zumindest teilweise zur Deckung miteinander gebracht werden und der Fixierungsbereich an der dem ersten Bauteil abgewandten Seites des zweiten Bauteils vorliegt,
• – Einstecken des Bolzenelements von einer Seite des ersten Bauteils aus, so dass ein Abschnitt des Bolzenelements, der den mindestens einen Formschlussbereich aufweist, durch die Durchgangsöffnungen hindurchgesteckt wird, und
• – Formschlüssiges Verpressen des vorspringenden Fixierungsbereichs mit dem durch die Durchgangsöffnungen hindurchgesteckten Abschnitt an dem mindestens einen Formschlussbereich, um die Bauteile aneinander festzulegen.

A manufacturing method according to the invention has at least the following steps:

• Providing at least one first component and one second component, each having at least one passage opening, wherein a passage opening on the second component is bounded by a fixing region projecting on one side of the second component,
• Providing at least one elongated bolt element with at least one positive-locking region lying deeper in relation to a lateral surface of the bolt element,
• Arranging the components against one another such that the passage openings are at least partially brought into coincidence with one another and the fixing region is present on the side of the second component which faces away from the first component,
• Inserting the bolt element from one side of the first component such that a section of the bolt element having the at least one form-locking region is inserted through the through-openings, and
• - Form-locking pressing of the projecting fixing portion with the inserted through the through-holes portion at the at least one positive connection portion to fix the components together.

By means of a method according to the invention, a component connection according to the invention can thus be produced, so that the advantages and features mentioned for variant embodiments of a component connection according to the invention also apply to a production method according to the invention and vice versa.

For example, the component connection can be provided on a seat frame, a rail arrangement and / or a back frame of a vehicle seat.

Alternatively or additionally, the protruding fixation region on the second component may have been formed as a collar or sleeve shape, for example by laser-assisted collar pulling.

Further advantages and features of the invention will become apparent in the following description of embodiments with reference to the accompanying figures.

Hereby show:

1A partial and sectional view of an embodiment according to the invention, in which two components are fixed to one another via a bolt element in the form of a locking ring bolt;

1B the embodiment of 1A with inserted locking bolt;

2 An exemplary embodiment of an alternatively formed slinger with a threaded portion;

3 an exemplary vehicle seat on which a component connection according to the invention or a plurality of component connections according to the invention can be provided.

In the 1A are two components to be connected together 1 and 2 partial and in section view. Both components 1 and 2 have differently sized through holes 10 and 20 on. The two passage openings 10 and 20 were brought to coincidence, so that a bolt element in the form of a locking ring bolt 3 in the passage opening 10 and 20 can be inserted. The locking ring bolt 3 is in this case along a plug-in direction E and in this case along its longitudinal extension direction from one side of the first component 1 plugged in. The two components 1 and 2 lie after fixing the locking ring bolt 3 in the in the 1 and 2 shown areas with flat faces facing each other.

The locking ring bolt 3 has a groove portion 32 on, passing through the passage opening 10 of the first component 1 is completely passed and over the passage opening 20 of the second component 2 in a collar formed by a draft 21 of the second component 2 protrudes. This collar 21 In this case forms a fixation region, which with the groove portion 32 of the inserted locking ring bolt 3 is pressed to the two components 1 and 2 to commit each other.

By several, symmetrically along the bolt longitudinal axis juxtaposed grooves 320 of the groove section 32 It will allow that projecting collar 21 of the second component 2 positive locking with the inserted locking ring bolt 3 is pressed. Thus, in the intended joining process material of the collar 21 radially inward into the grooves 320 pressed, so a high-strength connection with the second component 2 arises. A locking ring does not have to be provided.

About the lockbolts 3 can be the first component 1 rotatably on the second component 2 be arranged. The locking ring bolt 3 puts it over a stepped shaft 31 a physical axis of rotation for the first component 1 ready. So can the inserted lockbolts 3 in the 1B with play in the through hole 10 of the first component 1 and thus the first component 1 around the pin axis of the lock ring bolt 3 be rotatably mounted. Alternatively, over the locking ring bolt 3 a rigid connection of the two components 1 and 2 be realized together by pressing the collar 21 with the groove section 32 of the locking ring bolt 3 the first component 1 over the flattened head 30 of the locking ring bolt 3 frictionally against the second component 2 is pressed.

In the illustrated embodiment corresponds to a wall thickness d2 of the projecting collar 21 of the second component 2 only a fraction of a wall thickness d1 of the second component 2 in the area of the passage opening 20 , For example, the collar to be pressed 21 provided with a wall thickness d2, which is only about one third of the wall thickness d1 of the metallic component 2 where ¼ d1 ≤ d2 ≤ d1 should preferably apply.

A length l of the collar 21 that indicates how strong the collar is 21 on the second component, on the other hand, corresponds to a multiple of the wall thickness d1 of the second component 2 , For example, the length l is in a range of one to three times d1 (d1 ≦ l ≦ 3 · d1).

With the 2 is a possible embodiment for a locking bolt 3 * illustrated, which readily in place of the locking ring bolt 3 of the 1A and 1B can be used. Instead of a groove section 32 is here after a (round) head 30 * and a shaft 31 * of the locking ring bolt 3 * a threaded section 32 * with a thread 320 * provided as positive locking area. Through the provided thread 32 * can the locking ring bolt 3 * after pressing with the collar 21 be unscrewed if necessary. The two components 1 and 2 can thus be detached from each other again, without the components 1 and 2 to have to destroy.

For unscrewing the locking ring bolt 3 * shows his head 30 * a tool opening 300 * on. In this tool opening 300 * a preferably power-operated tool can engage in a form-fitting manner to the locking ring bolt 3 * from the collar 21 unscrewed. The locking ring bolt 3 * is thus at the two aligned components 1 and 2 stuck and then with the collar 21 pressed to the components 1 and 2 to commit each other. Through the provided with a defined pitch threaded portion 32 * but is a simplified release of the component connection by unscrewing the locking ring bolt 3 * allows.

The in the 1A and 1B exemplified component connection with a locking bolt 3 or 3 * , one with the second component 2 molded collar 21 is pressed, for example, can be used particularly advantageously on a vehicle seat F, as in the 3 is shown as an example.

The vehicle seat F of 3 has a seat (under) frame U that is mounted longitudinally displaceable on a rail assembly S. On the seat frame U, a back frame L is pivotally mounted about a pivot axis A. Backrest side parts L1 and L2 of the backrest frame L thereby define the backrest longitudinal sides of a backrest of the vehicle seat F formed with the backrest frame L. The seat frame U can also be used to fix a seat pan.

The Indian 3 illustrated vehicle seat F may comprise a plurality of different adjustment mechanisms for height and / or inclination adjustment in addition to an adjusting mechanism for adjusting a seat longitudinal position by means of the rail assembly S. In particular, components of such adjusting mechanisms can be connected via a component connection according to the invention according to the 1A and 1B In a particularly simple manner, a heavy-duty connection can be formed.

In one variant, for example, at least one bracket, via which the seat frame U is fixed to the rail arrangement S, is provided with a collar 21 according to the 1A and 1B to provide and the seat frame U via a lockbolts 3 to fix on this bracket. It can via a locking bolt 3 Also be provided a pivot bearing for a seat height adjustment.

Alternatively or additionally, for example, at least one Höhenverstellhebel a seat adjuster of the vehicle seat F a collar 21 train to this with a bolt element in the form of the locking ring bolt 3 to press in a positive fit.

LIST OF REFERENCE NUMBERS

1

1st component

10

Through opening

2

2nd component

20

Through opening

21

Collar (fixation area)

3, 3 *

Lockbolt

30, 30 *

head

300 *

mold opening

31, 31 *

shaft

32

groove section

32 *

threaded portion

320

Groove (form-locking area)

320 *

Thread (positive connection area)

A

swivel axis

d1, d2

wall thickness

e

insertion

F

vehicle seat

L

back frame

L1, L2

Backrest side part

l

length

S

rail arrangement

U

seat frame

Claims (15)

Component connection with at least two components ( 1 . 2 ), which via at least one bolt element ( 3 . 3 * ) are fixed to each other by the bolt element ( 3 . 3 * ) with a section ( 32 . 32 * ) from one side of a first component ( 1 ) by mutually aligned through openings ( 10 . 20 ) of the components ( 1 . 2 ) is inserted through and the inserted section ( 32 . 32 * ) on an opposite side of a second component ( 2 ) is axially secured, characterized in that through the through holes ( 10 . 20 ) section ( 32 . 32 * ) with a passage opening ( 20 ) of the second component ( 2 ) and on the second component ( 2 ) projecting fixation area ( 21 ) is pressed positively. Component connection according to claim 1, characterized in that the inserted portion ( 32 . 32 * ) at least one positive-locking region ( 320 . 320 * ), in the material of the fixation region ( 21 ) is pressed into it. Component connection according to claim 2, characterized in that the positive-locking region ( 320 . 320 * ) comprises a groove, a groove, a throat or a thread. A component connection according to claim 3, characterized in that a plurality of form-fitting regions, each with a groove ( 320 ) are provided. A component connection according to claim 4, characterized in that the grooves ( 320 ) at the inserted portion ( 32 ) are symmetrically formed and arranged. Component connection according to one of the preceding claims, characterized in that the projecting fixing area ( 21 ) is formed collar or sleeve-shaped. A component connection according to claim 6, characterized in that the projecting fixing area ( 21 ) is formed by a passage. Component connection according to claim 6 or 7, characterized in that the fixing area ( 21 ) protrudes with a length (l) which is a multiple of a wall thickness (d1) of the second component ( 2 ) in the region of the passage opening ( 20 ) of the second component ( 2 ), in particular up to 3 times the wall thickness. Component connection according to one of the preceding claims, characterized in that the bolt element is a locking ring bolt ( 3 ). Vehicle seat with at least two components ( 1 . 2 ), which are fixed to one another via a component connection according to one of claims 1 to 9. Vehicle seat according to claim 10, characterized in that at least one of the components ( 1 . 2 ) Part of a seat frame (U) of the vehicle seat (F), a rail arrangement (S) for seat longitudinal adjustment of the vehicle seat (F) and / or a back frame (L) of the vehicle seat (F). Vehicle seat according to claim 10 or 11, characterized in that one of the following components of the vehicle seat (F) is a component ( 1 . 2 ) of the component connection is: - bearing angle for the storage of a transmission element of an adjustment mechanism for seat longitudinal adjustment; - Bracket for the connection of a seat frame (U) of the vehicle seat (F) to a rail assembly (S); - Height adjustment lever, as part of a height adjustment mechanism of the vehicle seat (F); - Lehnenrahmenteil a back frame (L) of a backrest of the Fahrzugsitzes (F); - Side part for a seat adjuster of the vehicle seat (F); - Seating part of a seat frame (U) of the vehicle seat (F); - Seat of the vehicle seat (F); - Coupling rod of the vehicle seat (F) for the transmission of an adjusting force from one to the other longitudinal side of the vehicle seat (F); - Neigungsverstellsegment for the inclination adjustment of a backrest of the vehicle seat (F). Method for producing a component connection, in particular on a vehicle seat (F), comprising at least the following steps: - providing at least one first component ( 1 ) and a second component ( 2 ), each having at least one passage opening ( 10 . 20 ), wherein a passage opening ( 20 ) on the second component ( 2 ) by a fixation area ( 21 ) bounded on one side of the second component ( 2 protruding, - providing at least one elongate bolt element ( 3 . 3 * ) with at least one transverse to the longitudinal direction of the bolt element ( 3 . 3 * ) recessed form-locking area ( 320 . 320 * ), - arranging the components ( 1 . 2 ) to each other, so that the passage openings ( 10 . 20 ) are at least partially brought to coincide with each other and the fixation area ( 21 ) at the first component ( 1 ) facing away from the second component ( 2 ), - inserting the bolt element ( 3 . 3 * ) from one side of the first component ( 1 ), so that a section ( 32 . 32 * ) of the bolt element ( 3 . 3 * ), which has the at least one form-locking region ( 320 . 320 * ), through the passage openings ( 10 . 20 ), and - positive locking of the protruding fixing area ( 21 ) with the section inserted through the through-openings ( 32 . 32 * ) at the at least one positive-locking region ( 320 . 320 * ) to the components ( 1 . 2 ) to each other. A method according to claim 13, characterized in that the component connection to a seat frame (U) and / or a back frame (L) of a vehicle seat (F) is provided. A method according to claim 13 or 14, characterized in that the projecting fixation area ( 21 ) on the second component ( 2 ) is formed collar-shaped or sleeve-shaped by laser-supported collar pulling.

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