RU33926U1 - Device for attaching aircraft floor panels - Google Patents

Abstract

A device for attaching aircraft floor panels, including a supporting beam with an upper horizontal shelf for installing floor panels, in which the dovetail groove is made, characterized in that the floor panels are fastened with clamps connected by screws to the anchor nuts installed in the groove “ dovetail ”, and between the floor panels and the upper shelf of the beam placed structural elements that prevent the panels from moving along the shelf.

Description

Cl. MPKV64S1 / 18

Device for attaching aircraft floor panels.

The proposed technical solution relates to aircraft manufacturing and can be used for flooring of passenger or cargo aircraft floor panels.

A device is known for attaching aircraft floor panels (see German Patent No. 3501887, Fig. 14), in which a stop is fixed on the upper shelf, overlapping the shoulders mounted on the ends of the panels from above. The disadvantage of this device is that the panels are installed with a gap that does not provide pressure and tightness of the connection. And for this reason, panel shifts and vibrations are possible, reliability is reduced, as well as moisture penetration under the panels and structural corrosion.

A device for attaching floor panels of an aircraft is known, including a non-cyniyip beam with in; with a horizontal shelf for installing floor panels, in Shpoleyn na: 1ShaStchchkin tail (see part1ggGermash 3141869, Fig. 4a.4b) - npciihoTHn. Floor panels attached to the top shelf by

     ..- ;. , - G: -: ....: J -;, ---., .- ........ .., ..-.

Press, P1h: Provides reliability and tightness, and the dovetail is used to secure seats and loads.

The disadvantage of this device is the low maintainability, as it is not ensured the ease of removal and reinstallation of the floor panels. The aim of the proposed technical solution is to ensure high maintainability, while maintaining a reliable and tight fit. This goal is achieved by the fact that in the device for fastening the floor panels of the aircraft, including the supporting beam with the upper horizontal shelf for installing the floor panels, in which the groove "dovetail is made, the fastening of the floor panels is made using clamps connected by screws with anchor nuts mounted in groove "dovetail, while between the floor panels and the upper shelf of the beam placed structural elements. preventing lateral displacement of panels on the shelf. Thus, a detachable and hermetically tight pressing of the iol panels to the upper shelf with the absence of a pressing process is ensured, assembly and disassembly are simplified., And with the use of structural elements, the bearing capacity is increased (lOHKHe panels under tension do not work in bending, but in tension).

A device for attaching caA flight floor panels is shown in Fig. L. Us1royS1vo includes a non-short beam 1 with a top horizontal nojiKOv i 2 for installing 3 ruxna panels and with a groove “las7Ochkin XBOCI 4 in shelf 2, The floor panels 3 are fastened using clamps 5 connected screws 6 with anchor nuts 7. installed in the groove 4 Between the panels. 3–2 floors of the floor and the upper shelf 2, structural elements 8 are placed that prevent the lateral displacement of the panels 3 along the shelf 2. The structural elements 8 are made as dowels, but it can also be a pair “Overhang, hollow, or corrugated plates on panels 3 and shelf 2, etc.

MF: btsnna 5-flat., A rather small plate, therefore along the beam 1 and each of the panes 1 € 5y 3 in places free from fastening the seats (loads) there are placed as many as 5 - as much as you need to have a reliable hobby. At the edge of the panels 3, a bevel is made at an angle (cc) for filling the sealant.

An anchor nut 7 is elongated along groove 4 and starts in a special zone with groove broadening 4 shifted along beam 1 relative to strzina 5. At the base of the sachet floor is an orgagonal system of non-food longitudinal and transverse beams with shelves 2, with panels 3 fastened around the perimeter, usually screws passing through the hole in the panels 3 and shelves 2, with the indicated disadvantages. In operating aircraft, the basin 4 is only in the longitudinal beams of I; therefore, for them, the proposed technical solution is immediately applicable. To get the beams, it is generally applicable if the flashing of their flanges 2 allows you to perform groove 4, otherwise, if you want to match the flanges, you need to use a flush box 1 flush box 3 with a set of screws. For all aircraft under construction, it is easy to make JSSB 4 and use this overload in all beams.

11 | rtbt5S1 | nznep polak

top shelf 2, providing: reliability and tightness of heeling. The construction elements in the panel prevent the lateral displacement of the panels 3 along the flange 2, which means that the panzgei 3 operates under load on the rzhgzhezhepie (along the thin shell). The clamp 5 itself is connected by screws 6 to the nut 7 in the groove 4 of shelf 2, which fixes the entire device. ) thorough disassembly of the device is simple, thanks to screws 6, so its remanence is high. The tight pressing ensures tightness, 1feduces moisture from under the panel 3 and prevents corrosion of the beam 1.

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Claims (1)

A device for attaching aircraft floor panels, including a supporting beam with an upper horizontal shelf for installing floor panels, in which the dovetail groove is made, characterized in that the floor panels are fastened with clamps connected by screws to the anchor nuts installed in the groove “ dovetail ”, and between the floor panels and the upper shelf of the beam placed structural elements that prevent the panels from moving along the shelf.