| 摘要 |
A displaceable telescopic tripod for lighting installations, such as for use in movie picture shooting comprising in combination telescopic elements 2 operated by double chain 27, 28 elevation and stiffening means, trolley means connected to a central element 6 of said tripod by parallelogram means 15, 16, 21 having a variable geometry, control and fastening means 19 slidably arranged on said central element 6 for controlling and fastening the position of said trolley means, drive 5 and transmission 29, 30 means provided for said double chain means and arranged respectively on the upper and lower end of said central element, and storage and guide means 10, 8 for said double chain means, said storage and guide means 10, 8 being parallel and external with respect to said central element 6. <IMAGE> |
