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公开(公告)号：US20220184903A1
公开(公告)日：2022-06-16
申请号：US17432400
申请日：2020-02-18
摘要： Method for manufacturing a stiffened panel of composite materials and a stiffened panel, comprising: a skin (1), and stiffeners (3, 4), wherein the manufacturing method comprises the following steps: providing a skin (1), making a plurality of through drill holes (6) on the skin (1) located in correspondence with areas where the placement of stiffeners (3, 4) is expected, introducing threaded bolts (5) in the through drill holes (6) such that the head (11) of the threaded bolt (5) remains housed in the skin (1), locating a threaded nut (10) on the free end of the threaded bolts (5), manufacturing the stiffeners (3, 4) such that the threaded bolts (5) and the threaded nut (10) remain embedded in the stiffeners (3, 4).
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公开(公告)号：US12006019B2
公开(公告)日：2024-06-11
申请号：US17626735
申请日：2020-07-09
CPC分类号： B64C1/061 , B29D99/0014 , B64F5/10 , B64C2001/0072
摘要： An internal structural reinforcement element for fuselages, where the internal structural reinforcement element has a longitudinal direction adapted for its placement in the longitudinal direction of the fuselage and a transversal direction perpendicular to the longitudinal direction, comprising:
an external reinforcement element,
an internal reinforcement element, located internally to the external reinforcement element in the transversal direction of the structural element,
where both reinforcement elements are manufactured from resin-impregnated fibre, and
an intermediate element, located between the external reinforcement element and the internal reinforcement element in the transversal direction of the structural element, the intermediate element being manufactured from pre-impregnated composite material.-
公开(公告)号：US12117063B2
公开(公告)日：2024-10-15
申请号：US17413290
申请日：2019-12-13
CPC分类号： F16F1/3686 , B29C70/302 , B29C70/48 , B29L2031/774 , F16F2224/0241 , F16F2226/04 , F16F2230/0005 , F16F2238/022
摘要： Leaf spring comprising at least one leaf of composite material that comprises:
a central body (1), and
two eyes (2),
wherein the central body (1) comprises its longitudinal end zones (1.1) embedded in a cavity (2.1) of the eyes (2), wherein the sections transversal to the longitudinal direction of the central body (1) of the longitudinal end zones (1.1) of the central body (1) and the cavities (2.1) of the eyes (2) present increasing dimensions towards the longitudinal end of the leaf spring and that comprises fibre fabrics (7, 8, 9) of the central body (1) stacked in a Z-direction perpendicular to the longitudinal direction of the central body (1) and to the longitudinal direction of the hole (3) of the eyes (2) and comprises fibre fabrics (10, 11) of the eyes (2) stacked in a parallel direction to the longitudinal direction of the longitudinal axis of the hole (3).-
公开(公告)号：US12076947B2
公开(公告)日：2024-09-03
申请号：US17432400
申请日：2020-02-18
IPC分类号： B29C70/70 , B29C70/48 , E04C2/16 , E04C2/38 , B29K105/08
CPC分类号： B29C70/70 , B29C70/48 , E04C2/16 , E04C2/38 , B29K2105/0863 , B29K2105/0872
摘要： Method for manufacturing a stiffened panel of composite materials and a stiffened panel, comprising:
a skin (1), and
stiffeners (3, 4),
wherein the manufacturing method comprises the following steps:
providing a skin (1),
making a plurality of through drill holes (6) on the skin (1) located in correspondence with areas where the placement of stiffeners (3, 4) is expected,
introducing threaded bolts (5) in the through drill holes (6) such that the head (11) of the threaded bolt (5) remains housed in the skin (1),
locating a threaded nut (10) on the free end of the threaded bolts (5),
manufacturing the stiffeners (3, 4) such that the threaded bolts (5) and the threaded nut (10) remain embedded in the stiffeners (3, 4).-
公开(公告)号：US20220056975A1
公开(公告)日：2022-02-24
申请号：US17413290
申请日：2019-12-13
摘要： Leaf spring comprising at least one leaf of composite material that comprises: a central body (1), and two eyes (2), wherein the central body (1) comprises its longitudinal end zones (1.1) embedded in a cavity (2.1) of the eyes (2), wherein the sections transversal to the longitudinal direction of the central body (1) of the longitudinal end zones (1.1) of the central body (1) and the cavities (2.1) of the eyes (2) present increasing dimensions towards the longitudinal end of the leaf spring and that comprises fibre fabrics (7, 8, 9) of the central body (1) stacked in a Z-direction perpendicular to the longitudinal direction of the central body (1) and to the longitudinal direction of the hole (3) of the eyes (2) and comprises fibre fabrics (10, 11) of the eyes (2) stacked in a parallel direction to the longitudinal direction of the longitudinal axis of the hole (3).
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