Hybrid composite panel and method

Patent metadata

Field	Value
Publication number	US-11318702-B2
Application number	US-201816486096-A
Country	US
Kind code	B2
Filing date	Feb 14, 2018
Priority date	Feb 14, 2017
Publication date	May 3, 2022
Grant date	May 3, 2022

Abstract

A method of producing a core for a composite panel along a continuous production line is disclosed. The method includes the steps of providing a thermoplastic sheet of material onto the production line and vacuum forming the thermoplastic sheet of material into alternating pairs of matching shapes, providing the thermoplastic sheet of material with alternating pairs of matching shapes onto upper and lower conveyor belts that are operating at lower speeds than the production line causing the pairs of matching shapes to bunch up and form a honeycomb structure, and cutting the honeycomb structure into discrete sections with spaces therebetween. A plurality of reinforced plastic bands with gaps therebetween are provided and the honeycomb structure is aligned with the gaps. The plurality of reinforced plastic bands and the honeycomb structure are secured together.

First claim

I claim:

1. A composite panel configured for a use in a sidewall and a door of a tractor trailer comprising:
an outer sheet;
an inner sheet; and
a core member positioned between the inner sheet and the outer sheet and corresponding to a shape and size of the inner sheet and the outer sheet to define ends that include exposed edges of the core member,
wherein the core member includes a partially hollow structure and a plurality of reinforced strips, and
wherein the plurality of reinforced strips comprise at least one interior band and at least one external band, and extend longitudinally at least through the core member to divide the partially hollow structure into at least two segments, and
wherein the plurality of reinforced strips have substantially the same composition.

2. The composite panel of claim 1 , wherein the outer sheet and the inner sheet comprise a material selected from the group consisting of a metal, a fibre-reinforced plastic, and a glass reinforced plastic.

3. The composite panel of claim 2 , wherein the partially hollow structure is provided as a hollow webbed structure comprising a plurality of cells that are one of hexagonal, square, parallelogram, or triangular in shape.

4. The composite panel of claim 1 , wherein the at least one interior band is positioned within the partially hollow structure.

5. The composite panel of claim 4 , wherein the at least one external band is positioned around a perimeter of the partially hollow structure.

6. The composite panel of claim 1 , wherein the at least one external band has a predetermined width of about 4 centimeters to about 8 centimeters.

7. The composite panel of claim 1 , wherein the at least one interior band has a predetermined width of about 4 centimeters to about 8 centimeters.

8. The core of claim 1 , wherein the partially hollow structure and the plurality of reinforced strips are welded together.

9. A core for a use in a composite panel, the core comprising:
a first material provided in a form of a partially hollow structure; and
a second material provided in a form of a plurality of reinforced strips, wherein at least one of the reinforced strips extends longitudinally through the partially hollow structure to divide the partially hollow structure into at least two segments, and at least one of the reinforced strips is positioned around a perimeter of the partially hollow structure to be exposed along an end of the composite panel, and wherein the plurality of reinforced strips have substantially the same composition.

10. The core of claim 9 , wherein the first material is a hollow webbed structure.

11. The core of claim 9 , wherein the first material comprises one or more spaces for receiving the second material.

12. The core of claim 11 , wherein the core is configured to be coupled to a portion of a tractor trailer.

13. The core of claim 9 , wherein the first material and the second material are welded together.

Assignees

• Wabash National Lp

Inventors

• Baker Leonard W

Classifications

• B32B2605/00

  Vehicles · CPC title

• B32B5/18

  characterised by features of a layer {of} foamed material · CPC title

• B29D99/0089 Primary

  Producing honeycomb structures (consisting of porous ceramic ware C04B38/0006) · CPC title

• B29D99/0021

  provided with plain or filled structures, e.g. cores, placed between two or more plates or sheets, e.g. in a matrix · CPC title

• B32B15/09

  comprising polyesters · CPC title