System for making the movement of furniture easier and safer, based on mechanisms for controlling the force exerted on the wheels by springs that are adjusted or pretensioned in relation to the weight of the furniture

摘要

The present invention concerns a system for making the movement of furniture and objects in general easier and safer, based on mechanisms that control the force exerted on the wheels by adjustable or pretensioned springs that can distribute the weight of the furniture partially or totally respectively on the wheels that protrude from the mechanism (moving position) or on the same mechanism with the wheels retracted or on a point of support of the furniture (stable position). IMAGE