US3890749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforcement assembly for internally braced structures having areal outer surfaces
Assignee: Airbus Defence and Space GmbH
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Filing: 1974-07-15
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Granted: 1975-06-24
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Expires: 1994-07-15
Abstract
Abstract A reinforcement assembly is provided for mounting and transmitting forces to an internally braced structural element having means defining thereon areal outer surfaces. The structural element is of the type particularly suitable for use in vehicles such as aircraft and spacecraft and includes a fulcrum region at which the element is mounted and through which forces are transmitted thereto. The reinforcement assembly comprises plate means located to extend generally parallel to the areal surfaces from the fulcrum region, with a plurality of plates being located on opposite sides of the plate means in overlapping relationship arranged to provide for the structure fiber reinforcement which increases in the direction of the fulcrum region. Web means located to extend between the opposed plate means in directions generally parallel thereto are assembled to extend radially outwardly from the fulcrum region. The ends of the web means located adjacent the fulcrum region are made to converge at an assembly point where the webs are joined by an interconnecting device including a bush.
Inventors
- 👤 Rolf Gunther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:01
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/02; B32B27/00; B32B27/06; B32B27/065; B32B5/18; B32B7/00; B32B7/04; B32B7/12; B64; B64C; B64C1/00; B64C1/06; B32B2305/00; B32B2305/02; B32B2305/028; B32B2305/08; B64C2001/0054; B64C2001/0081; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24174; Y10T428/24182
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
137 words
A reinforcement assembly for mounting and transmitting forces to an internally braced structural element having means defining thereon areal outer surfaces, particularly a structural element for use in vehicles such as aircraft and spacecraft, said structural element including a fulcrum region at which said element is mounted and through which forces are transmitted thereto, said assembly comprising plate means extending generally parallel to said areal surfaces internally of said structural element from Said fulcrum region in overlapping relationship on opposite sides thereof, said plate means being arranged to provide to said structural element fiber reinforcement which increases in the direction of said fulcrum region, and web means extending between said opposed plate means in directions generally perpendicular thereto, said web means being arranged to also extend radially outwardly from said fulcrum region in a generally diverging configuration.
Claim 2
Dependent Claim
137 words
A reinforcement assembly for mounting and transmitting forces to an internally braced structural element having means defining thereon areal outer surfaces, particularly a structural element for use in vehicles such as aircraft and spacecraft, said structural element including a fulcrum region at which said element is mounted and through which forces are transmitted thereto, said assembly comprising plate means extending generally parallel to said areal surfaces internally of said structural element from Said fulcrum region in overlapping relationship on opposite sides thereof, said plate means being arranged to provide to said structural element fiber reinforcement which increases in the direction of said fulcrum region, and web means extending between said opposed plate means in directions generally perpendicular thereto, said web means being arranged to also extend radially outwardly from said fulcrum region in a generally diverging configuration.
Claim 3
Dependent Claim
61 words
An assembly according to claim 1 wherein said plate means are formed in layers of fiber reinforced compound plates extending from said fulcrum region, said plates being arranged in groups on opposite sides of said web means with the overlapping relationship of said plates being such that the distance between said groups diminishes in a direction taken toward said fulcrum region.
Claim 4
Dependent Claim
16 words
An assembly according to claim 2 wherein said reinforcing plates are formed with an unsymmetrical configuration.
Claim 5
Dependent Claim
34 words
An assembly according to claim 3 wherein said reinforcing plates are formed with reinforcing fibers oriented to extend unidirectionally in a direction corresponding to the direction of the distribution of forces through said assembly.
Claim 6
Dependent Claim
20 words
An assembly according to claim 2 wherein the overlapping relationship of said reinforcing plates is arranged in a stepped configuration.
Claim 7
Dependent Claim
14 words
An assembly according to claim 4 wherein layering of the reinforcing fibers is staggered.
Claim 8
Dependent Claim
23 words
An assembly according to claim 1 wherein said plate means comprise plates consisting essentially of compound materials formed in combination with uniform materials.
Claim 9
Dependent Claim
28 words
An assembly according to claim 1 wherein said web means extending substantially perpendicularly to said plate means are arranged with said plate means attached on opposite sides thereof.
Claim 10
Dependent Claim
29 words
An assembly according to claim 8 wherein said web means include connecting strips formed to extend from said web means and arranged to have said plate means fastened thereon.
Claim 11
Dependent Claim
27 words
An assembly according to claim 1 wherein said web means are arranged with a configuration formed in dependence upon the distribution of load forces in said assembly.
Claim 12
Dependent Claim
33 words
An assembly according to claim 1 wherein said web means are configured with a longitudinal dimension, said web means being formed with a corrugated configuration extending in the direction of said longitudinal dimension.
Claim 13
Dependent Claim
37 words
An assembly according to claim 2 wherein said webs are formed with a thickness which decreases in the direction of the fulcrum region in correspondence with the decrease in the spacing between said group of plate means.
Claim 14
Dependent Claim
24 words
An assembly according to claim 1 wherein said web means are formed to consist essentially of compound materials used in combination with uniform materials.
Claim 15
Dependent Claim
61 words
An assembly according to claim 1 wherein said web means comprise a group of individual webs extending into abutment with each other at said fulcrum region with each of said webs having a bore extending therethrough at said fulcrum region and wherein at least one connecting member is arranged to extend through each of said bores to join said webs together.
Claim 16
Dependent Claim
32 words
An assembly according to claim 14 including a fitting member having said connecting member extending therethrough and cooperating therewith to join said webs together and to have said plate means attached thereto.
Claim 17
Dependent Claim
37 words
An assembly according to claim 1 wherein said plate means and said web means are arranged to define cavities therebetween and wherein said cavities are filled with a material forming a supporting interior core for said assembly.
Claim 18
Dependent Claim
34 words
An assembly according to claim 1 wherein said structural element is arranged with said reinforcing assembly located internally thereof and with said web means and said plate means being affixed to said structural element.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |