Spring bracket arm

Patent metadata

Field	Value
Publication number	US-9868329-B2
Application number	US-201515318803-A
Country	US
Kind code	B2
Filing date	Jun 9, 2015
Priority date	Jul 7, 2014
Publication date	Jan 16, 2018
Grant date	Jan 16, 2018

Abstract

A spring carrier of a motor vehicle axle, particularly of a portal axle, with a longitudinal portion ( 1 ) and a flange portion ( 2 ) which adjoins the one end of the longitudinal portion ( 1 ) and which has a flange ( 8 ). The longitudinal portion ( 1 ) includes at least one fastening point for fastening to a shock absorber and/or to a suspension. At least the longitudinal portion ( 1 ) of the spring carrier arm comprises a lower shell ( 4 ) and an upper shell ( 3 ) of metallic material or of a plastic with or without fiber reinforcement, the shell edges ( 6, 7 ) thereof extending along the neutral bending axis ( 5 ) of the spring carrier arm, and the lower shell ( 4 ) and upper shell ( 3 ) are connected to one another along the neutral bending axis ( 5 ) of the spring carrier arm by bonding engagement.

First claim

The invention claimed is:

1. A spring carrier arm of a spring carrier of a motor vehicle axle comprising:
a longitudinal portion ( 1 ) having an end and a flange portion ( 2 ) adjoining the end of the longitudinal portion ( 1 ),
wherein the longitudinal portion ( 1 ) includes at least one fastening point for fastening to a shock absorber and/or to a suspension;
a flange ( 8 ) and a neutral bending axis;
the longitudinal portion ( 1 ) of the spring carrier arm comprising a lower shell ( 4 ) and an upper shell ( 3 ) of metallic material or of a plastic with or without fiber reinforcement; the lower shell ( 4 ) and upper shell ( 3 ) having shell edges ( 6 , 7 ) extending along the neutral bending axis ( 5 ) of the spring carrier arm; and wherein the lower shell ( 4 ) and upper shell ( 3 ) being connected to one another along the neutral bending axis ( 5 ) of the spring carrier arm by a bonding engagement.

2. The spring carrier arm according to claim 1 , wherein the flange portion ( 2 ) is connected to the longitudinal portion ( 1 ) by a bonding engagement.

3. The spring carrier arm according to claim 2 , wherein the flange portion ( 2 ) comprises a connection piece ( 9 ) which is connected to the longitudinal portion ( 1 ) in a connection area at a distance from the flange ( 8 ) of the flange portion ( 2 ) by a bonding engagement; and wherein the connection piece ( 9 ) and the longitudinal portion ( 1 ) have the same cross sections in their respective connection area.

4. The spring carrier arm according to claim 1 , wherein the longitudinal portion ( 1 ) has an end region opposite the flange portion ( 2 ) forming a transverse portion ( 11 ) extending at an angle to a portion of the longitudinal portion ( 1 ) which extends from the flange portion ( 2 ).

5. The spring carrier arm according to claim 1 , wherein the lower shell ( 4 ) comprises an underside having a downward inclination from the flange portion ( 1 ) to the end remote of the flange portion ( 1 ).

6. The spring carrier arm according to claim 1 , wherein the lower shell ( 4 ) has an end region remote of the flange portion ( 2 ) and a continuous, downward-facing opening ( 17 ) at the end region ( 2 ).

7. The spring carrier arm according to claim 1 , wherein the upper shell ( 3 ) comprises an upper side having openings ( 12 , 13 ); the carrier arm additionally comprising fastening points for fastening a shock absorber and/or a suspension, the fastening points including spring supports ( 14 , 15 ) which are inserted into the openings ( 12 , 13 ) at the upper side of the upper shell ( 3 ).

8. The spring carrier arm according to claim 7 , wherein at least one of the spring supports ( 14 , 15 ) are inserted into the openings ( 12 , 13 ) of the upper shell ( 3 ) with a press fit.

9. The spring carrier arm according to one of claim 8 , wherein at least one of the spring supports ( 14 , 15 ) is connected to the upper shell ( 3 ) by a bonding engagement.

10. The spring carrier arm according to one of claim 7 , wherein at least one of the spring supports ( 14 , 15 ) is connected to the upper shell ( 3 ) by a bonding engagement.

11. The spring carrier arm according to claim 7 , wherein a fastening point for fastening a shock absorber and/or a suspension has a threaded bore hole ( 16 ) formed at the upper side of the upper shell ( 3 ) or at the spring support ( 14 , 15 ).

12. The spring carrier arm according to claim 1 , wherein the upper shell ( 3 ) and/or the lower shell ( 4 ) of metallic material or of a plastic with or without fiber reinforcement are constructed by forming.

13. The spring carrier arm according to claim 1 , wherein the flange portion ( 2 ) is a forged part of metal or a structural component part which comprises a composite material with metal inserts or a plastic with or without fiber reinforcement.

14. The spring carrier arm according to claim 1 , wherein the flange portion ( 2 ) and/or the longitudinal portion ( 1 ) are/is made of a metallic material, or of a plastic with or without fiber reinforcement.

15. The spring carrier arm according to claim 14 , wherein the metallic material is fine-grain steel.

Assignees

• Zahnradfabrik Friedrichshafen

Inventors

• Bauer Manuel
• Lenz Paul

Classifications

• B60G2206/012

  Hollow or tubular elements · CPC title

• B60G2206/81

  Shaping · CPC title

• B60G11/16 Primary

  characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle · CPC title

• B60G9/04 Primary

  the axle or housing not being pivotally mounted on the vehicle {(B60G9/003 takes precedence)} · CPC title

• B60G2206/82092

  by press-fitting · CPC title