| 摘要 |
<p>The invention relates to a camera support device of the type comprising a girder along which there are displaceable a camera chariot and a counterweight chariot in such a way that the girder is always statically in balance. The invention solves the problem to attain a noiseless movement of the counterweight unit by providing it with at least three pairs of wheels (5, 6), the wheels in each pair being by a spring (8) urged apart along a shaft (7) and kept in contact with the girder both at its envelope surfaces and at tapered corner portions.</p> |
