LEAF HANDLE Russian patent published in 2023 - IPC E05B3/00 

FIELD: handle.

SUBSTANCE: invention is related to locks and hardware, in particular to rotary handles, and can be used for installing handles on windows, transom windows, balcony, door and similar structures. The leaf handle is made of a handle (1), a flange (2) having a flange cover (3). The handle (1) is kinematically connected to the return spring (4). The flange (2) is made hollow. The return spring (4) is installed in the hollow area. The spring (4) driver is made in form of two coaxial elements (5) and (6), on the inner surfaces of which there are hooking means (7) for contacting with the hooking means (8) of the base (9) of the handle. Elements (5) and (6) of the driver are installed on the base of the handle and can be rotated on this base. The return spring (4) is made in form of at least one torsion spring in form of a spiral, all turns of which can be located in a plane parallel to the coaxial elements (5) and (6) of the driver, at the ends of which there are bends (10). Each element (5) and (6) of the driver has a counter stop (11) for engagement with one of the bends (10) of the spring (4). The counter stops (11) are located at different diameters of rotation of the elements (5) and (6) of the driver.

EFFECT: increased reliability of operation of the leaf handle while simultaneously providing the ability to rotate the handle both up and down.

1 cl, 3 dwg