Patent ID: 7461729

Claim:
A device for suspending an aircraft battery the device comprising: two springs; two adjustment means serving to vary the stiffness of each of the two springs respectively, the springs and their associated adjustment means enabling two resonant frequencies of a suspension loaded with the battery to be adjusted, said resonant frequencies corresponding respectively to two resonant modes in deformation of the suspension under load, thus making it possible to avoid a resonator constituted by the suspended battery locking on two adjacent frequencies; a first bent bar provided and arranged to be mounted to pivot relative to the structure of the aircraft via at least two resilient hinges about a first pivot axis that is substantially parallel to a long axis of the device; a first of said two springs comprising a spring blade secured at two spaced-apart zones of the first bent bar, and extending substantially parallel to the first bent bar; a second bent bar provided and arranged to be mounted to pivot relative to the structure of the aircraft via at least two resilient hinges about a second pivot axis parallel to the pivot axis of the first bar; at least one rider mounted to slide along the second bar, said at least one rider being designed and arranged to pinch the first spring blade against the second bar, thereby reducing its active length, and consequently increasing its stiffness; a battery support hinged on each of the two bent bars, via two pairs of resilient hinges; at least one hinged bar pivotally hinged under the battery support and extending substantially parallel to said long axis; a second one of said two springs comprising at least one second spring blade designed and arranged to be secured to the structure of the aircraft via a pivot and to extend along said at least one hinged bar; and a fastener member suitable for sliding along at least one of the hinged bar and the second spring blade, and for securing said hinged bar to said spring blade, while modifying a length of the active portion of the spring blade wherein said adjustment means comprise said at least one rider and said fastener member.