초록 ▼

A method of installing an insert in a sandwich panel for mounting a fastener includes making a hole in the panel and inserting a spacer having a height greater than the thickness of the panel. An entrance rim of the spacer extends above an upper surface of the panel and a setting tool exerts a force

A method of installing an insert in a sandwich panel for mounting a fastener includes making a hole in the panel and inserting a spacer having a height greater than the thickness of the panel. An entrance rim of the spacer extends above an upper surface of the panel and a setting tool exerts a force on the entrance rim to force it into the hole and to position an upper edge of the entrance rim flush with the panel surface. The spacer can include an annular groove on an interior wall of the entrance rim to facilitate the cold working deformation during an installation in the panel. An outer exterior surface of the entrance rim can be indented and coated with a first sealing compound to ensure a water-tight seal with the panel. A second sealant material can be provided within the entrance rim for sealing with a head of any fastener extending through the spacer. An improved floor panel with spacer is accordingly provided for aircraft.

대표청구항 ▼

[ What is claimed is:] [10.]10. An improved spacer for mounting within a panel of a predetermined thickness with a hole, comprising:an unitary metal member having a central aperture;a lower flange member extending radially outward from the body member;an upper rim member extending upward from the bo

[ What is claimed is:] [10.]10. An improved spacer for mounting within a panel of a predetermined thickness with a hole, comprising:an unitary metal member having a central aperture;a lower flange member extending radially outward from the body member;an upper rim member extending upward from the body member and concentric with the central aperture, the rim member having a larger inner diameter than a diameter of the central aperture with an inner flange extending from the rim member to the central aperture, a height of the spacer relative to the panel predetermined thickness is such to position an upper edge of the upper rim member above an upper panel surface when the lower flange member is in contact with a lower panel surface adjacent the hole; anda first sealing compound positioned adjacent the upper rim member on an outer surface of the spacer so that it is positioned adjacent an upper panel surface when the lower flange member is in contact with a lower panel surface whereby the first sealing compound can seal between the hole and the spacer when the spacer is mounted in the panel.