Abstract

A drone chassis including an external structure that deforms elastically in bending, and a set of cables connecting at least one support, intended to support a functional element of the drone, to the external structure. The set of cables includes elastic cables deforming elastically in traction under a tensile stress above a natural deformation threshold, the set of cables being attached at several points on the external structure, referred to as attachment points, to hold the at least one support in a stable position with respect to the external structure. The elastic cables are attached under stress by applying an initial tensile stress and maintains the initial tensile stress by attaching to the external structure. An additional tensile stress applied to the cables attached under stress causes a deformation under traction of the cables only as from a threshold that is above the natural deformation threshold of the cables.

IPC Classes  ?

• B64U 20/73 - Monocoque body
• B64U 10/14 - Flying platforms with four distinct rotor axes, e.g. quadcopters
• B64U 20/70 - Constructional aspects of the UAV body

Abstract

Drone frame comprising an external structure (110) which deforms elastically by bending, and a cable assembly (120) connecting at least one support member (130), which is designed to support a functional element of the drone (100), to the external structure (110). The cable assembly (120) comprises elastic cables (120) that deform elastically under a tensile stress higher than a natural deformation threshold, the cable assembly (120) being attached to several points of the external structure (110), referred to as attachment points (116), to hold the at least one support member (130) in a stable position relative to the external structure (110). The elastic cables (120) are attached under stress by applying an initial tensile stress and maintaining the initial tensile stress through attachment to the external structure (110). Additional tensile stress applied to the cables (120) causes the cables (120) to deform under tension only from a threshold higher than the natural deformation threshold of the cables (120).

IPC Classes  ?

• B64C 39/02 - Aircraft not otherwise provided for characterised by special use