Drive train apparatus

摘要

A drive train apparatus (1) adapted for driving a pan and tilt head, which in use is intended to support a payload (for example a video camera), the apparatus includes respective successive drive elements (2, 3, 4) so coupled as to communicate a rotational movement applied at one end of the apparatus (1) from an output of a rotational input device (8) to a rotational output (16) disposed at the other end of the apparatus (1), in a manner whereby the rotational velocity of the rotational movement is reduced across the drive elements (2, 3, 4) thereby converting the torque applied to the input of each drive element (2, 3, 4) into an increased torque at the output of each drive element (2, 3, 4); a first stage one of the drive elements including a belt drive.

主权项

1. A drive train for driving a pan and tilt head, the drive train comprising:
respective successive drive stages; said drive stages having an input; an output; and a coupling between respective stages; whereby said drive stages communicate a rotational movement applied at one end of said drive train from an output of a rotational input device to a rotational output disposed at the other end of said drive train, in a manner whereby the rotational velocity of said rotational movement is reduced across said drive stages, thereby converting the torque applied to the input of each drive stage into an increased torque at the output of each drive stage; whereby one of said successive drive stages comprises a gear drive; prior to said gear drive is another said drive stage comprising a belt drive and a further said drive stage comprising a friction drive.