Positioning profiles for pultrusions in composite bus body

Patent metadata

Field	Value
Publication number	US-11981093-B2
Application number	US-202117500582-A
Country	US
Kind code	B2
Filing date	Oct 13, 2021
Priority date	Oct 13, 2020
Publication date	May 14, 2024
Grant date	May 14, 2024

Abstract

A method of forming a composite vehicle components (e.g. walls, floor, roof) having interleaved foam core members and pre-pultruded reinforcing pillars by pultruding the cores and pillars into a vehicle component (e.g. bus sidewall formed as integral component front to rear) and cutting apertures therein for insertion of vehicle accessories (e.g. windows). Also, vehicle components can be formed having interlocking profiled edges where a first component is inserted into a second component, and rotated to bring the two components into locking engagement. A plurality of components can be formed with the same geometry, and oriented 180 degrees offset from each other to bring their profiled edges adjacent to each other.

First claim

The invention claimed is:

1. A method of forming a composite vehicle component comprising:
pultruding a plurality of reinforcement structures, each reinforcement structure having opposing inner and outer surfaces defining a thickness therebetween;
providing a plurality of core members, each core member having opposing inner and outer surfaces defining a thickness therebetween, wherein each of the plurality of core members are foam;
positioning each core member of the plurality of core members between adjacent reinforcement structures;
maintaining a relative spacing of the core members and reinforcement structures;
pultruding the reinforcement structures and core members together to apply an inner skin layer onto the inner layers of the reinforcement structures and core members, and an outer skin layer onto the outer layers of the reinforcement structures and core members;
forming an opening in at least one of the inner skin layer and outer skin layer, wherein the opening is positioned between adjacent reinforcement structures.

2. The method of claim 1 , wherein at least one reinforcement structure is disposed parallel to at least one core member.

3. The method of claim 1 , wherein at least one reinforcement structure is disposed perpendicular to at least one core member.

4. The method of claim 1 , wherein at least one of the reinforcement structures is rectangular.

5. The method of claim 1 , wherein at least one core member is maintained in an abutting engagement with at least one reinforcement structure.

6. The method of claim 1 , wherein the vehicle component has a non-planar profile.

7. The method of claim 1 , wherein the vehicle component has a curved profile.

8. The method of claim 1 , wherein the vehicle component is a sidewall of a bus, formed as an integral component from a front location proximal to a front wheel well of the bus to location distal of a rear wheel well of the bus.

9. The method of claim 1 , wherein forming an opening includes forming an aperture for receiving a window.

10. The method of claim 1 , further comprising providing a tapping plate, the tapping plate disposed adjacent at least one of the inner and outer skin layers.

11. The method of claim 10 , wherein the tapping plate is disposed within at least one core member.

12. The method of claim 10 , wherein the tapping plate is disposed within at least one reinforcement structure.

13. A method of forming a composite vehicle component comprising:
pultruding a plurality of reinforcement structures, each reinforcement structure having opposing inner and outer surfaces defining a thickness therebetween;
providing a plurality of core members, each core member having opposing inner and outer surfaces defining a thickness therebetween, wherein each of the plurality of core members are foam;
positioning a core member between adjacent reinforcement structures;
maintaining a relative spacing of the core members and reinforcement structures;
pultruding a first set of reinforcement structures and core members together to form a first composite vehicle panel;
pultruding a second set of reinforcement structures and core members together to form a second composite vehicle panel;
forming a connector, the connector having a first pair of sidewalls defining a first channel and a second pair of sidewalls defining second channel;
inserting the first composite panel in the first channel of the connector; and
inserting the second composite panel in the second channel of the connector.

14. The method of claim 13 , wherein the first channel of the connector is oriented perpendicular to the second channel of the connector.

15. The method of claim 13 , wherein forming the connector includes forming a third pair of sidewalls defining a third channel and a fourth pair of sidewalls defining a fourth channel, each of the first, second, third and fourth channels of the connector are orthogonal to each other.

16. The method of claim 15 , wherein at least the first composite panel is releasably coupled to the connector.

17. The method of claim 15 , wherein at least the first composite panel is non-adhesively coupled to the connector.

18. The method of claim 13 , further comprising dispensing adhesive through at least one aperture disposed within at least one of the sidewalls of the first channel.

19. The method of claim 13 , wherein the first vehicle component is a sidewall and the second vehicle component is a floor of the vehicle.

20. The method of claim 13 , wherein at least one of the first and second vehicle component has a curved profile.

Assignees

• Tpi Composites Inc

Inventors

• Uddin Ahsan
• Perraut John

Classifications

• B62D29/048

  Connections therefor, e.g. joints (B62D29/045 takes precedence) · CPC title

• B62D29/043

  Superstructures (B62D25/161 takes precedence) · CPC title

• B62D31/02

  for carrying large numbers of passengers, e.g. omnibus · CPC title

• B29C70/525 Primary

  Component parts, details or accessories; Auxiliary operations · CPC title

• B29K2105/043

  Skinned foam · CPC title