| 摘要 |
<p>A knockdown-type track wheel system for camera dolly comprising a pair of. spaced apart camera track railings, a plurality of cross-members spacedly supporting said pair of camera track railings, and a collapsible tripod supporting each of said cross-member, each of said cross-member being defined by a pair of opposing threaded studs on the respective ends, a height adjusting means screwably attached to corresponding threaded stud, a ball extending from said height adjusting means, and a triangular railing seat adjustably secured on said ball and fitted to the underside of said camera track railings.</p> |
