| 摘要 |
1. A mechanical erector for vertical gyroscope comprising : - a fixed axis (2) fastened to the housing (5) of the gyroscope and parallel to the axis thereof, - an unstable pendulum (6) articulated about said fixed axis (2), - a rotary platen (3) having said fixed axis (2) as its rotational axis, - reduction gear means (4) driving the platen into rotation and taking their motion from the gyroscope axis, - a finger (8) secured to the platen, such finger being in urging contact with the pendulum except for a portion of its circular path provided that in such portion the pendulum is submitted to the action of a gravity component perpendicular to the fixed axis due to deviation of the gyroscope axis relative to the vertical, characterized in that ; - it comprises only one pendulum (6), - the pendulum (6) is extended by a fork comprising two arms (9a and 9b) with the pendulum and the fork being provided on either side of the fixed axis, - the finger (8) enters between both arms (9a, 9b) of the fork such that said urging contact is established between the finger and one arm (9a) of the fork, the other arm (9b) enters into contact with the finger in said portion of the pendulum path when said gravity component occurs, - the platen (3) is provided with a counter-weight (7) for counterbalancing the weight of the pendulum (6) when the finger (8) is in urging contact with one of said arms (9a), the counter-weight and the pendulum being in that case diametrically opposite and their center of gravity then lying on the fixed axis. |
