Shockproof device for a power generator with an oscillating weight

A shockproof device for a generator activated by the alternating movements of an oscillating weight transmitted to the generator via a barrel, said generator including a rotor provided with a pinion, said oscillating weight including an unbalanced mass secured to an axle and supported by a toothed wheel, and said barrel including a drum, having a base forming an external toothed wheel, which rotates freely about a pivoted arbor and inside which is wound a spiral coiled spring coupled at one end to the axle of the oscillating weight and secured at the other end to the inner wall of the drum to form driving means for the rotor, said spiral coiled spring having an elastic constant, such that, during normal operation, the turns of the spring are wound or unwound from a neutral position in which they are regularly spaced and occupy, in the event of a shock, an open position in which the turns are pressed against the inside of the drum or a closed position in which the turns are regrouped at the center, wherein an internal sliding strip is coupled to the arbor driven by the oscillating weight, said sliding strip being wound in the same manner as the spiral coiled spring and surrounding the latter without any rigid mechanical connection over a length substantially corresponding to a turn of the spring in the open position.