MECHANISM FOR SWITCHES WHICH CONTAINS TWO SWINGING MOVABLE CONTACTS Russian patent published in 2025 - IPC H01H36/00 H01H3/46 H01H13/60 H01H23/28 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to the field of mechanisms for switches, in particular, switches intended for implementation of several positions, namely to switches used in the field of reversible drive motors for curtains. For this, switch mechanism (S) comprises two swinging movable contacts (P1, P2), each swinging according to axis of rotation (GR) between two end positions, and for each movable contact (P1, P2) there are driving levers (L1, L2), which can rotate around an axis (GR) containing corresponding driving ends (L1D, L2D) for pushing movable contacts (L1, L2). Levers (L1) comprise corresponding interacting support surfaces (LS1, LS2), wherein surfaces (LS1, LS2) have such orientation, in which their mutual support means that the first lever (L1) causes rotation of the second lever (L2) when it turns according to the positive direction of rotation (+), and when the support surfaces (LS1, LS2) come into contact with each other; and first lever (L1) is a limiter for stopping rotation of second lever (L2), when second lever (L2) turns according to negative direction of rotation (-), so that undesirable configuration of swinging movable contacts (P1, P2) is prevented.

EFFECT: prevention of undesirable configurations of contacts, which can lead to short circuits, due to direct connection of levers to each other.

14 cl, 17 dwg