| 摘要 |
A suspension apparatus that enables an operator to make fluid camera movements without holding up the weight of the camera. The apparatus includes a yoke rotatably mounted on a wheeled base for rotation about a vertical axis. A primary lever arm having having first and second ends and a medial portion is pivotably mounted on the yoke to form a fulcrum. A secondary arm has a first end pivotally attached to the second end of the primary lever arm, and a second end including a support for the camera. A counterweight arm has a first end pivotally attached to the first end of the primary lever arm. To insure balance, the apparatus includes a chain drive mechanism, responsive to pivoting of the secondary arm about the second end of the primary lever arm in a first direction, for pivoting the counterweight arm about the first end of the primary lever arm in a second opposed direction. In addition, the apparatus includes a chain drive mechanism for maintaining the camera level relative to the base as the secondary arm is pivoted about the second end of the primary lever arm. |
