CONSTANT FORCE SUSPENSION Russian patent published in 2021 - IPC F16L3/21 

FIELD: engineering elements.

SUBSTANCE: invention relates to the field of equipment wherein spring suspension is applied for moving elements with transfer of constant force onto supporting structures. To realize the described result, a stiffening element is made in form of a single spring (1) located in the internal cavity of the body (9) of the constant force suspension. The spring (1) is located between plates (3, 4) fixed on a guiding pin (7), restricted from one side with a support plate (2) fixed with a nut (15) with a gap allowing for axial rotation of the pin (7). The support plate (2) is equipped with a stud (21) prohibiting axial rotation of the plate (3) with a threaded hole during adjustment of the force of the spring (1) with a nut (16) fixed at the second end of the pin (7). Placed on the plates (2, 4) are rollers (18) interacting with the curvilinear profile of mirror cams (5, 6) fixed on the body (9) and transmitting the force from a load-bearing plate (10) fixed under the spring (1) by means of four levers (8) connected in pairs. The lever (8) is fixed hingedly to the load-bearing plate (10) at one end and hingedly to the plates (2, 3) at the other end. The spring (1) is fixed relative to the body (9) using a stud (20) through a toothed plate (19) into a toothed groove (17) located on the body of the suspension (9). The load-bearing plate (10) is equipped with a suspension rod in form of a threaded pin (22) fixed at one end in a threaded hole on the load-carrying plate while fixing the position using a nut (23).

EFFECT: reduced dimensions and weight of the suspension, simplification of configuration and adjustment of the force of the spring at the point of installation.

1 cl, 3 dwg