Sandwich panel assembly and method

• US 10,384,758 B2
• Filed: 01/26/2016
• Issued: 08/20/2019
• Est. Priority Date: 01/26/2016
• Status: Active Grant

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Mills, Christopher J.
• Primary Examiner(s): Wiley, Daniel J
• Application Number:
  US15/006,884
• Publication Number:
  US 20170210457A1
• Time in Patent Office: 1,302 Days
• CPC Class Codes: A47B 2230/0081 Mortise and tenon type joints with some general male and female joints
• CPC Class Codes: A47B 2230/0096 Assembling sheet parts by male and female parts formed in the sheet thickness
• CPC Class Codes: A47B 47/042 Panels connected without frames
• CPC Class Codes: B32B 15/02 Layer formed of wires, e.g. mesh
• CPC Class Codes: B32B 15/043 of metal B32B15/01 takes precedence
• CPC Class Codes: B32B 15/046 of foam
• CPC Class Codes: B32B 15/08 of synthetic resin
• CPC Class Codes: B32B 15/18 comprising iron or steel B32B15/011, B32B15/012 and B32B15/013 take precedence
• CPC Class Codes: B32B 15/20 comprising aluminium or copper B32B15/016 and B32B15/017 take precedence
• CPC Class Codes: B32B 2250/03 3 layers
• CPC Class Codes: B32B 2250/40 Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
• CPC Class Codes: B32B 2262/101 Glass fibres
• CPC Class Codes: B32B 2262/106 Carbon fibres, e.g. graphite fibres
• CPC Class Codes: B32B 2266/0228 Aromatic vinyl resin, e.g. styrenic (co)polymers
• CPC Class Codes: B32B 2305/024 Honeycomb
• CPC Class Codes: B32B 2605/18 Aircraft blades, propellers B32B2603/00
• CPC Class Codes: B32B 2607/00 Walls, panels
• CPC Class Codes: B32B 27/065 of foam
• CPC Class Codes: B32B 3/02 characterised by features of form at particular places, e.g. in edge regions non-uniform thickness B32B3/263
• CPC Class Codes: B32B 3/06 for securing layers together; for attaching the product to another member, e.g. to a support , or to another product, e.g. groove/tongue, interlocking
• CPC Class Codes: B32B 3/08 : characterised by added members at particular parts layer formed of separate pieces of material which are juxtaposed side-by-side B32B3/14, B32B3/18
• CPC Class Codes: B32B 3/12 : characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
• CPC Class Codes: B32B 3/266 : characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
• CPC Class Codes: B32B 5/02 : characterised by structural features of a fibrous or filamentary layer layer formed of metallic wires B32B15/02; layer formed of natural mineral fibres B32B19/02; layer formed of wood fibres B32B21/02
• CPC Class Codes: B32B 7/02 : Physical, chemical or physicochemical properties
• CPC Class Codes: B32B 9/005 : comprising one layer of ceramic material, e.g. porcelain, ceramic tile layered products with at least two ceramic layers composed mainly of ceramic B32B18/00
• CPC Class Codes: B32B 9/041 : of metal
• CPC Class Codes: B64C 1/00 : Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
• CPC Class Codes: B64C 1/12 : Construction or attachment of skin panels
• CPC Class Codes: B64F 5/10 : Manufacturing or assembling aircraft, e.g. jigs therefor
• CPC Class Codes: F16B 2/14 : using wedges
• CPC Class Codes: F16B 5/0614 : in angled relationship
• CPC Class Codes: F16B 5/07 : by means of multiple interengaging protrusions on the surfaces, e.g. hooks, coils,

Abstract

A panel assembly including a first panel defining a slot, a second panel comprising a tab, wherein the tab is received in said slot and defines a gap in the slot between the tab and the first panel, and a joining assembly positioned in the gap, the joining assembly including an outer rack member engaged with the first panel, an inner rack member engaged with the second panel and a shim in ratcheting engagement with the outer rack member and the inner rack member.

Claims

1. A panel assembly comprising:

a first panel defining a slot;

a second panel comprising a tab, wherein said tab is received in said slot and defines a gap in said slot between said tab and said first panel; and

a joining assembly positioned in said gap, said joining assembly comprising;

an outer rack member engaged with said first panel;

an inner rack member engaged with said second panel; and

a shim in ratcheting engagement with said outer rack member and said inner rack member.

2. The panel assembly of claim 1 wherein at least one of said first panel and said second panel comprises a core sandwiched between a first face sheet and a second face sheet.

3. The panel assembly of claim 1 wherein said second panel is disposed at a transverse angle relative to said first panel.

4. The panel assembly of claim 3 wherein said transverse angle is about 90 degrees.

5. The panel assembly of claim 1 wherein said outer rack member comprises an elongated body having a first end portion and an opposed second end portion, said elongated body comprising a rack surface extending from proximate said first end portion to proximate said second end portion, said rack surface comprising a plurality of serrations.

6. The panel assembly of claim 5 wherein said shim is in ratcheting engagement with said plurality of serrations of said rack surface of said outer rack member.

7. The panel assembly of claim 5 wherein said shim comprises a rack surface comprising a plurality of serrations, and wherein said plurality of serrations of said rack surface of said shim are engaged with said plurality of serrations of said rack surface of said outer rack member.

8. The panel assembly of claim 5 wherein said outer rack member further comprises a first flange connected proximate said first end portion and a second flange connected proximate said second end portion, and wherein said first panel is positioned between said first flange and said second flange.

9. The panel assembly of claim 1 wherein said inner rack member comprises an elongated body having a first end portion and an opposed second end portion, said elongated body comprising a rack surface extending from proximate said first end portion to proximate said second end portion, said rack surface comprising a plurality of serrations.

10. The panel assembly of claim 9 wherein said shim is in ratcheting engagement with said plurality of serrations of said rack surface of said inner rack member.

11. The panel assembly of claim 9 wherein said shim comprises a rack surface comprising a plurality of serrations, and wherein said plurality of serrations of said rack surface of said shim are engaged with said plurality of serrations of said rack surface of said inner rack member.

12. The panel assembly of claim 9 wherein said elongated body further comprises an abutting surface opposed from said rack surface, and wherein a boss protrudes from said abutting surface.

13. The panel assembly of claim 12 wherein said tab defines a recess, and wherein said boss is received in said recess.

14. The panel assembly of claim 9 wherein said inner rack member further comprises a fractional round portion connected to said first end portion of said elongated body.

15. The panel assembly of claim 1 wherein said shim has a substantially uniform cross-sectional thickness.

16. A panel assembly comprising:

a first panel comprising a first major surface and a second major surface, said first panel defining a slot extending from said first major surface to said second major surface along a longitudinal axis;

a second panel comprising a first major surface and a second major surface, said second panel defining an edge and comprising a tab extending from said edge, wherein said tab is received in said slot and defines a first gap between said first panel and said first major surface of said second panel, and a second gap between said first panel and said second major surface of said second panel;

a first joining assembly positioned in said first gap, said first joining assembly comprising;

a first outer rack member engaged with said first panel;

a first inner rack member engaged with said second panel; and

a first shim in ratcheting engagement with said first outer rack member and said first inner rack member; and

a second joining assembly positioned in said second gap, said second joining assembly comprising;

a second outer rack member engaged with said first panel;

a second inner rack member engaged with said second panel; and

a second shim in ratcheting engagement with said second outer rack member and said second inner rack member.

17. The panel assembly of claim 16 wherein said first outer rack member comprises a first flange engaged with said first panel and said second outer rack member comprises a second flange engaged with said first panel.

18. The panel assembly of claim 17 wherein said first inner rack member comprises a first boss engaged with said second panel and said second inner rack member comprises a second boss engaged with said second panel.

19. The panel assembly of claim 16 wherein said first shim is positioned between said first outer rack member and said first inner rack member, and wherein said first shim comprises a first rack surface and an opposed second rack surface, said first rack surface being in ratcheting engagement with corresponding serrations on said first outer rack member and said second rack surface being in ratcheting engagement with corresponding serrations on said first inner rack member.

20. A method for assembling a first panel and a second panel, said first panel defining a slot and said second panel comprising a tab, said method comprising:

positioning an outer rack member in said slot such that said outer rack member is engaged with said first panel;

positioning an inner rack member on said tab such that said inner rack member is engaged with said second panel;

inserting said tab into said slot such that said outer rack member is opposed from said inner rack member; and

inserting a shim between said outer rack member and said inner rack member, said shim being in ratcheting engagement with said outer rack member and said inner rack member.