	US 12,077,221 B2
	Device for raising and lowering a spare wheel of a vehicle, having engagement surfaces
Giovanni Scribano, Collegno (IT)
Assigned to PROMA S.P.A., S. Nicola la Strada (IT)
Appl. No. 17/620,540
Filed by PROMA S.P.A., S. Nicola la Strada (IT)
PCT Filed Jun. 16, 2020, PCT No. PCT/IB2020/055619 § 371(c)(1), (2) Date Dec. 17, 2021, PCT Pub. No. WO2020/254963, PCT Pub. Date Dec. 24, 2020.
Claims priority of application No. 102019000009111 (IT), filed on Jun. 17, 2019.
Prior Publication US 2022/0315136 A1, Oct. 6, 2022
Int. Cl. B62D 43/04 (2006.01)

CPC B62D 43/045 (2013.01)

13 Claims

1. A device for raising and lowering a spare wheel of a vehicle, comprising:

a body mountable to the vehicle in a fixed position, and comprising a first indented surface defining an aperture,

a lifter mechanism for raising and lowering the spare wheel, comprising a rotatable element configured for rotating relative to the body about an axis of rotation, wherein the rotatable element is at least partly housed in the aperture and comprises a second indented surface;

wherein the first and second indented surfaces are configured to mutually interfere, to hinder rotation of the rotatable element relative to the body;

wherein the first and second indented surfaces each comprise a plurality of projections or corrugations or protrusions, and recesses;

wherein, during rotation of the rotatable element in the aperture, the plurality of projections or corrugations or protrusions of the first indented surface contact the plurality of projections or corrugations or protrusions of the second indented surface, to provide mechanical resistance to the rotation of the rotatable element in the aperture.