Glove box for a dashboard of a motor vehicle; glove box comprising: a container mountable on the dashboard of the motor vehicle; said container being provided with an opening for loading/unloading the objects; covering means of said opening; said covering means being hinged to said container by hinge means; and elastic energy-accumulating means (50; 550) mechanically coupled to said covering means; said elastic energy-accumulating means being elastically loaded due to the movement of said covering means when opening said opening; said elastic energy-accumulating means comprising an elastic assembly having a Young's modulus of elasticity variable according to the deformation of said elastic assembly; said elastic assembly comprising a first spring and a second spring; said first spring comprising a first end fastened to a wall and a second end to which a first end of pulling means is fastened; a first portion (60*) of said pulling means extending at least partially freely in said second spring; a second end of said pulling means being fastened to said covering means; said second spring comprising a first free end and a second end resting on an abutment element; characterized in that, when a user opens the glove box by rotating the covering means about the hinge means, said first spring is elongated by said pulling means and the second end of said first spring comes to rest on the first end of said second spring, so that the first and second springs (55,56) become in series; as the covering means opens further, the pulling means increasingly pulls the second end of said first spring, so that said first spring starts compressing said second spring, thus deforming it. a container mountable on the dashboard of the motor vehicle; said container being provided with an opening for loading/unloading the objects; covering means of said opening; said covering means being hinged to said container by hinge means; and elastic energy-accumulating means (50; 550) mechanically coupled to said covering means; said elastic energy-accumulating means being elastically loaded due to the movement of said covering means when opening said opening; said elastic energy-accumulating means comprising an elastic assembly having a Young's modulus of elasticity variable according to the deformation of said elastic assembly; said elastic assembly comprising a first spring and a second spring; said first spring comprising a first end fastened to a wall and a second end to which a first end of pulling means is fastened; a first portion (60*) of said pulling means extending at least partially freely in said second spring; a second end of said pulling means being fastened to said covering means; said second spring comprising a first free end and a second end resting on an abutment element; characterized in that, when a user opens the glove box by rotating the covering means about the hinge means, said first spring is elongated by said pulling means and the second end of said first spring comes to rest on the first end of said second spring, so that the first and second springs (55,56) become in series; as the covering means opens further, the pulling means increasingly pulls the second end of said first spring, so that said first spring starts compressing said second spring, thus deforming it.