DOOR OPENING MECHANISM Russian patent published in 2018 - IPC E05B7/00 E05B63/04 E05B17/22 

FIELD: construction.

SUBSTANCE: door opening mechanism (1) further comprises force transfer parts (3) between user interaction part (2) and spindle connecting part (7). Door opening mechanism further comprises torsion spring (8), and force transfer parts (3) comprise bevel gear (7A), bevel gear plate (6) and rotary frame (5), the rotary frame having opening (5A) for an axis in the direction of its longitudinal axis. Bevel gear (7A) is an integral part of spindle connection (7), and bevel gear plate (6) comprises through hole (6A) at the opposite end with respect to the bevelled teeth (6B) of the plate, and chamfered teeth (6B) of the plate are disposed adjacent to the teeth of bevel gear (7A). Rotary frame (5) has first lateral recess (5B) in the middle of the frame and second (5C) and third (5D) lateral recesses on both sides of first lateral recess (5B), wherein fourth lateral recess (5E) is located near second lateral recess (5C) and fifth lateral recess (5F) is located near third lateral recess (5D), respectively, wherein the five recesses are arranged one after the other in the direction of the longitudinal axis of rotary frame (5), and the rotary frame also has moment transfer surfaces (53, 54). Torsion spring (8) is located in first lateral recess (5B) in such a way that other end (8A) of the torsion spring is close to one or other end sides (51, 52) of the first lateral recess, and the end of bevel gear plate (6) on the side of through hole (6B) is located either in second (5C) or in third lateral recess (5D) such that bevel (6C) edges of the bevel gear plate are installed together with end sides (51, 52) of first lateral recess (5B), and the end on the side of bevelled teeth (6B) forms a projection with respect to rotary frame (5). User interaction part (2) has holes (2A) for pivot pin (9) and alignment protrusions (2B) which are located in fourth (5E) and fifth (5F) lateral recesses, as well as opposite moment transfer surfaces (210, 211), which are located opposite moment transfer surfaces (53, 54). Torsion spring (8), bevel gear plate (6), rotary frame (5) and user interaction part (2) are connected to each other by means of pivot pin (9), wherein the pin is located in the hollow channel formed by holes (2A) of user interaction part, hole (5A) for the axis of the rotary frame, through hole (6A) of the bevel gear plate, torsion spring (8) and holes (4C) in frame part.

EFFECT: door opening mechanism (1) comprising user interaction part (2), frame part (4), spindle connecting part (7) and pivot pin (9), wherein user interaction part (2) is pivotally connected to frame part (4) by means of pivot pin (9).

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