Load Introduction Element For A Chassis Component, Method For Producing A Load Introduction Element, And Chassis Component

Patent metadata

Field	Value
Publication number	US-2024123783-A1
Application number	US-202118278527-A
Country	US
Kind code	A1
Filing date	Dec 10, 2021
Priority date	Feb 24, 2021
Publication date	Apr 18, 2024
Grant date	—

Abstract

A load introduction element (3) for a chassis component (1) of a chassis, having a receiving opening (5) for receiving a joint arrangement (6) and a spline (8) with teeth (9A, 9B) extending substantially axially parallel to the longitudinal axis of the load introduction element (3), The load introduction element (3) is made from a fiber-reinforced plastic semifinished product, and has flat blanks (13, 14, 15) of the plastic semifinished product which are arranged one above the other in layers in an assembly direction (AR) and form a base body (11) of the load introduction element (3), wherein the blanks (13, 14, 15) of the base body (11) have at least two different geometries with different preferential fiber directions (20, 21).

First claim

1 . A load introduction element for a chassis component of a chassis, comprising a receiving opening for receiving a joint arrangement and a spline with teeth extending substantially axially parallel to the longitudinal axis of the load introduction element, wherein the load introduction element is made from a fiber-reinforced plastic semifinished product, wherein the load introduction element comprises flat blanks of the plastic semifinished product which arranged one above the other in layers in an assembly direction (AR) and form a base body of the load introduction element, wherein the blanks of the base body have at least two different geometries with different preferential fiber directions.

2 . The load introduction element according to claim 1 , wherein the load introduction element has a substantially U-shaped outer contour which is enclosed by at least one strip-shaped blank produced from the plastic semifinished product, the preferential fiber direction thereof extending perpendicular to the assembly direction (AR).

3 . The load introduction element according to claim 1 , wherein some of the blanks forming the base body have a contour that corresponds to the complete cross-sectional profile of the load introduction element, and in that some of the blanks have a contour which partially describes the cross-sectional profile of the load introduction element.

4 . The load introduction element according to claim 3 , wherein the blanks corresponding to the complete cross-sectional profile have a preferential fiber direction which extends parallel to the longitudinal axis of the load introduction element, while the blanks corresponding to the partial cross-sectional profile have a preferential fiber direction that is oriented to be inclined at an angle (a) to the longitudinal axis.

5 . The load introduction element according to claim 4 , wherein the blanks whose preferential fiber direction is oriented to be inclined at an angle (a) to the longitudinal axis are arranged in a mirror-inverted manner inside of a layer plane.

6 . The load introduction element according to claim 1 , wherein a cartridge serving to receive the joint arrangement is integrated in the receiving opening of the load introduction element.

7 . The load introduction element according to claim 1 , wherein the receiving opening is closed on one side by a cover which is formed integral with the load introduction element.

8 . The load introduction element according to claim 7 , wherein a radially inwardly directed step on which the cartridge and/or a bearing bush of the joint arrangement are/is supported is formed below the cover.

9 . The load introduction element according to claim 8 , wherein the cartridge is inserted into the receiving opening prior to a curing process so that a positive engagement connection is brought about by curing.

10 . The load introduction element according to claim 8 , wherein the cartridge is inserted into the receiving opening after a curing process and bonded to the load introduction element by means of gluing.

11 . The load introduction element according to claim 1 , wherein a cylindrical sleeve which is formed to be open to one side and which receives a bearing bush and a spherical portion of a joint body of the joint arrangement is integrated in the load introduction element by positive engagement.

12 . The load introduction element according to claim 11 , wherein the sleeve has at its closed side a continuous bottom which merges into a radially outwardly directed bead-shaped portion which partially extends in longitudinal direction of the sleeve.

13 . The load introduction element according to claim 11 , wherein the sleeve has a flange-shaped portion on its open side.

14 . The load introduction element according to claim 1 , wherein a spherical portion of a joint body of the joint arrangement is integrated directly in the load introduction element

15 . A method for producing a load introduction element for a chassis component of a chassis, wherein the load introduction element is formed with a receiving opening for receiving a joint arrangement and a spline, the method comprising:
a) cutting a plurality of blanks from a sheet-shaped plastic semifinished product, wherein the blanks have at least two different geometries with different preferential fiber directions, b) arranging the blanks in layers one above the other in an assembly direction (AR) to form a base body of the load introduction element ( 3 ), and c) molding and curing the blanks which are layered to form a base body.

16 . The method according to claim 15 , wherein the load introduction element has a substantially U-shaped outer contour which is enclosed by at least one strip-shaped blank which is produced from the plastic semifinished product and whose preferential fiber direction runs perpendicular to the assembly direction (AR).

17 . The method according to claim 15 , wherein at least one component part of the joint arrangement is inserted into the receiving opening before or after curing.

18 . The method according to claim 17 , wherein a sleeve, a cartridge, a bushing or a spherical portion of a joint body is inserted as at least one component part of the joint arrangement into the receiving opening.

19 . The method according to claim 17 , wherein the component part is inserted into the receiving opening after curing and connected to the load introduction element by gluing.

20 . The method according to claim 17 , wherein the component part which is inserted into the receiving opening is connected at least by material bonding to the load introduction element by means of the curing.

21 . A chassis component for a chassis, comprising a body having at least two load introduction elements which are connected to one another by a profile component, wherein the load introduction elements, respectively, have a receiving opening for receiving a joint arrangement, wherein the load introduction elements are connected to one another with the profile component in a common connection portion by means of a glued spline ( 8 ), wherein the load introduction elements are formed according to claim 1 .

22 . The chassis component according to claim 21 , wherein the spline has at least three teeth, the two outer teeth of which outwardly overlap the profile component, and the at least one further tooth projects into at least one corresponding hollow space of the profile component.

Assignees

• Zahnradfabrik Friedrichshafen

Inventors

• Stieglitz Andre
• Müller Ingolf
• Jurgeleit Eva Sophie
• Niemöller Paul

Classifications

• B60G7/001 Primary

  Suspension arms, e.g. constructional features (B60G7/006 takes precedence) · CPC title

• B60G7/005

  Ball joints (B60G7/006 takes precedence; for steering linkage B62D7/16; ball joints per se F16C11/06) · CPC title

• B60G2204/416

  Ball or spherical joints · CPC title

• B60G2206/7101

  Fiber-reinforced plastics [FRP] · CPC title

• B60G2206/11

  the arm being a radius or track or torque or steering rod or stabiliser end link · CPC title