MECHANISM FOR REGULATING COLLAPSIBLE ELEMENTS

摘要

The invention concerns a mechanism comprising two discoid parts (and 2) mounted on a free axle (3), said parts (1 and 2) being provided with two toothed sectors (4) constantly meshing with one another in the opposite face s thereof. Part (1) defines a pawl, which is mounted on the mobile or collapsible element while part (2) forms a crown which is integral with the structure or fixed element in which the mechanism is applied. The pawl (1) i n mounted on the axle (3) in such a way that it can move axially to enable separation of the teeth (4) and tilting of the mobile element in the directi on opposite to that of collapsing or reassembly of the mechanism. The teeth (4) are separated by a separating element (9) disposed between the pawl (1) and the crown (2), said pawl (1) being automatically involved in the rotation of the pawl relative to the crown or can be manually actuated to bring about separation. The pawl (1) actuates the position of the gear relative to the crown (2) by means of a spring (8) that is supported on an external disk (7) which in turns presses against a stop plate (6) that is drawn on the axle (3 ) and mounted on the pawl (1).