초록 ▼

The invention relates to a module for adjustment of intensity of panoramic movements along the horizontal and vertical plane, particularly in a supporting head for television or motion-picture cameras. The module comprises a proof casing, with a centrally passing rotation axis, a first group of fixe

The invention relates to a module for adjustment of intensity of panoramic movements along the horizontal and vertical plane, particularly in a supporting head for television or motion-picture cameras. The module comprises a proof casing, with a centrally passing rotation axis, a first group of fixed inner disc shaped elements, coupled on the rotation axis and spaced each other by spacing means. At least two groups of movable, laminar, disc shaped elements, the elements of which are maintained spaced each other by further spacing means. The groups of movable, laminar, disc shaped elements are being provided substantially externally with respect to the first group of elements, and being contemporaneously movable with respect to the latter group and symmetrically according to the radial direction with respect to the rotation axis. Guide means for the movement of the two groups or movable, laminar, disc shaped elements. Within the proof casing is a fluid being provided to create a resistance to the movement of the movable groups with respect to the fixed group. The movable groups being able to reach, with respect to the fixed group, a completely disengaged position and a completely interengagement position of their disc shaped elements.

대표청구항 ▼

The invention relates to a module for adjustment of intensity of panoramic movements along the horizontal and vertical plane, particularly in a supporting head for television or motion-picture cameras. The module comprises a proof casing, with a centrally passing rotation axis, a first group of fixe

The invention relates to a module for adjustment of intensity of panoramic movements along the horizontal and vertical plane, particularly in a supporting head for television or motion-picture cameras. The module comprises a proof casing, with a centrally passing rotation axis, a first group of fixed inner disc shaped elements, coupled on the rotation axis and spaced each other by spacing means. At least two groups of movable, laminar, disc shaped elements, the elements of which are maintained spaced each other by further spacing means. The groups of movable, laminar, disc shaped elements are being provided substantially externally with respect to the first group of elements, and being contemporaneously movable with respect to the latter group and symmetrically according to the radial direction with respect to the rotation axis. Guide means for the movement of the two groups or movable, laminar, disc shaped elements. Within the proof casing is a fluid being provided to create a resistance to the movement of the movable groups with respect to the fixed group. The movable groups being able to reach, with respect to the fixed group, a completely disengaged position and a completely interengagement position of their disc shaped elements. ble groups is obtained by an outer cam connected with said upper guide disc by fixing elements. 7. The module for adjustment of intensity of panoramic movements according to claim 1, wherein order to optimise the performances and reach the maximum value of the resistance to the movement, the sum of the interfaced surfaces within the movable groups will be equal to the interfaced surface of the fixed group in such a way that in the position of maximum coupling, the outer profiles of the movable groups will coincide with the outer diameter of the fixed group. 8. Module for adjustment of intensity of panoramic movements along the horizontal and vertical plane, particularly in a supporting head for television or motion-picture cameras, characterised in that it comprises a proof casing, with a centrally passing rotation axis, a first group of fixed inner disc shape elements, coupled on said rotation axis and spaced each other by spacing means, at least two groups of movable, laminar, disc shaped elements, the elements of which are maintained spaced each other by further spacing means, said groups of movable, laminar, disc shaped elements being provided substantially externally with respect to said first group of elements, and being contemporaneously movable with respect to the latter completely interengagement position of their disc shaped elements, wherein the movement of the movable groups is obtained by an outer cam connected with an upper guide disc by fixing elements. 9. The module for adjustment of intensity of panoramic movements according to claim 6, characterised in that said movable groups comprise a series of overlapped lamellae spaced by said spacing means, said lamellae being coupled by tow pins or rivets passing through a orthogonal direction in such a way to realize a completely rigid pack interengaging with the disc shaped elements of the fist group during their axial movement. 10. The module for adjustment of intensity of panoramic movements according to claim 6, wherein two, three, four or a higher number of moveable groups are provided, preferably four movable groups. 11. The module for adjustment of intensity of panoramic movements according to claim 6, wherein the fluid employed is a high viscosity siliconic fluid. 12. The module for adjustment of intensity of panoramic movements according to claim 6, wherein said guide means for the movable groups are comprised of two plates, respectively upper and lower plate, enclosing each single group, on the lower plate interference means, e.g. a pin, being provided, slidable along respective slots obtained on a lower disc, and on said upper plate interference means, e.g. a pin, being provided, slidable along respective slots, necessary to obtain radial movements. 13. The module for adjustment of intensity of panoramic movements according to claim 6, such that during the movement, all the movable groups maintains the same distance from the rotation axis. 14. The module for adjustment of intensity of panoramic movements according to claim 6, wherein the movement of the movable groups is obtained by an outer cam connected with said upper guide disc by fixing elements. 15. The module for adjustment of intensity of panoramic movements according to claim 6, wherein order to optimise the performances and reach the maximum value of the resistance to the movement, the sum of the interfaced surfaces within the movable groups will be equal to the interfaced surface of the fixed group in such a way that in the position of maximum coupling, the outer profiles of the movable groups will coincide with the outer diameter of the fixed group.