FIELD: mechanisms.
SUBSTANCE: invention relates to indicating mechanisms configured to rotate the indicating element in the direction of travel by a first angular distance exceeding a second angular distance. Essence: the indication mechanism (100) contains a first wheel (110), which can be driven by a clock mechanism; a second wheel (120) coaxial with the first wheel (110) and connected to the first wheel (110) by an elastic element (160); a first intermediate wheel (150) which is driven directly by the first wheel (110) and directly drives a third wheel (130) supporting the display element (2); wherein said third wheel (130) has a smooth angular sector (131), on which at least two teeth are cut; a fourth wheel (140) coaxial and rotationally rigidly connected to a third wheel (130), said fourth wheel (140) being engaged with said second wheel (120) by means of a second intermediate wheel (170); in this case, the indication mechanism is designed so that the rotation speed of the second wheel (120) is less than the rotation speed of the first wheel (110), when the indication element (2) is set in motion and performs angular movements by successive short jumps at an angle (α) between two marks separated the first angle (α), to gradually twist the elastic element (160) during said successive short jumps and, when the teeth of the intermediate wheel (150) meet the smooth angular sector (131) of the third wheel (130), to unload the elastic element (160) ensuring immediate passage of the smooth angular sector (131) and ensuring the angular movement of the specified indication element (2) with a long jump to the angle (β).
EFFECT: reducing susceptibility to deviations in the dimensions of parts, ensuring compactness, ease of use and increasing reliability.
16 cl, 9 dwg
