Mechanism for regulating collapsible elements

Mechanism for adjustment of hinged elements that planned to be applicable in the angular adjustment of a movable or hinged item with respect to a fixed structure or item, such as could be the armrests of a car, distinctive because it is essentially formed by two parts (1-1′-1″) and (2-2′-2″) preferably discoidal and mounted on a common axle (3), the parts (1-1′-1″) and (2-2′-2″) each being equipped with opposing cogs (4) that tend to engage permanently with each other;

• being intended that the discoidal part (2-2′-2″) acts as a crown and is welded to the structure or fixed item in which it is applied, while the discoidal part (1-1′-1″) acts as a ratchet and is positioned on the axle (3) with ability to move axially, between limits set by a limit plate(6) positioned on the axle (3) and an external limit disk (7) that in turn forms a support for a spring (8) that tends to continuously push the discoidal part acting as a ratchet (1-1′-1″) against the discoidal part acting as a crown (2-2′-2″);
• furthermore with the distinction that between the ratchet and crown a controlling part (9-9′-9″) of a separator that allows the disengaging of the cogs (4) of the ratchet and crown to permit the tilting of the hinged part in the opposite sense to folding.