FR2842280A1 - Camera mounting comprises frame forming parallelogram of levers, one arm of which extends outside parallelogram and supports camera on its end, counterweight mounted on this arm stabilizing camera - Google Patents

Abstract

The camera mounting comprises a frame forming a parallelogram of levers (P). One arm (7) of this extends outside the parallelogram and supports the camera (4) on its end. A counterweight (14) mounted on this arm stabilizes the camera. The frame is attached by a sleeve (19) to the operator's arm.

Description

I

  DEVICE FOR SUPPORTING AND PROVIDING A LOAD AND

IN PARTICULAR FROM A SOCKET APPARATUS

VIEWS

  The present invention relates to a support and pre-stabilization device for carrying a load placed offset at the end of a deformable parallelogram, while maintaining the vertical and horizontal balance.

of this charge.

  There are known devices of this kind which generally consist of a crane on which is embarked a camera whose pictures

  vertical and horizontal movements depend on a reference to the ground.

  Other devices of this type are known which are fixed on an operator, but which have certain drawbacks concerning on the one hand, the impossibility of moving the camera from top to bottom and on the other hand a balance

  unstable based on the inertia of the device.

  The object of the support and pre-stabilization device according to the present invention is to carry a load, which can for example be a camera, to reproduce identically and to restore flexibility, speed or 25 the immobility instantly of the movements of a mechanical device of the type

  crane or the like or the arm of an operator on which said device is fixed.

  The device for supporting and pre-stabilizing a load according to the present invention comprises an articulated structure arranged so as to constitute a deformable parallelogram P, one of the edges of which extends to carry the load offset and recovery means efforts to maintain the vertical and horizontal balance of this load during movement of the structure.

  The support and pre-stabilization device according to the present invention comprises means for recovering the forces for balancing the load which are constituted by the deformable parallelogram P carrying an articulated counterweight and by opposite and vertical external forces applied to the vertical and parallel edges of the said parallelogram.

  The support and pre-stabilization device according to the present invention comprises fixing means for retaining the deformable parallelogram P on the arm of an operator.

  The support and pre-stabilization device according to the present invention comprises an articulated structure which consists of a support carrying the load, tubes guided in rotation at each end at said support and a plate, said tubes being guided in translation and rotation between the support and the plate in a bracket carrying at its upper end the fixing means and at its lower end the articulated counterweight, while the fixing means are integral with a tube which cooperates freely with the plate.

  The support and pre-stabilization device according to the present invention comprises tubes which are guided in rotation in a U-shaped support and in a plate consisting of two parallel plates holding said tubes in parallel planes and one above the other.

  The support and pre-stabilization device according to the present invention comprises a plate which comprises above the tube a roller having in its center a groove in a portion of a circle intended to receive the tube of the fixing means.

  The support and pre-stabilization device according to the present invention comprises, between the support and the plate, a bracket which consists of parallel plates between which sleeves are guided in rotation through which the tubes pass respectively.

  The support and pre-stabilization device according to the present invention comprises a bracket which is placed at a distance d from the plate which represents approximately one third of the total distance L of the tubes comprised between the support and said plate.

  The support and pre-stabilization device according to the present invention comprises a bracket which comprises, below the lower tube, a counterweight which is free to rotate between the plates around a horizontal axis and which can be constituted, for example, by the camera battery.

  The support and pre-stabilization device according to the present invention comprises a bracket which comprises, above the upper tube, a U-shaped fork, at least one of the vertical branches of which carries, free to rotate about an axis , another plate which is integral on the one hand with a gutter intended to receive the lower part of the operator's forearm and on the other hand with a tube which slides on the roller of the first plate.

  The support and pre-stabilization device according to the present invention comprises a second plate which is integral with a substantially vertical tube carrying at its free end a shell adjustable in height and in rotation to come into close contact against the upper part of the forearm to wrap this

last with the gutter.

  The support and pre-stabilization device according to the present invention comprises a U-shaped fork which comprises on another vertical branch parallel to the first a slide which is integral on the one hand perpendicular to its direction of sliding of a handle which is arranged horizontally between the two branches of the fork to be in the extension of the gutter and to receive the hand of the operator and on the other hand opposite to the handle of a central unit comprising control buttons necessary for piloting and adjusting the camera. The support and pre-stabilization device according to the present invention comprises a fork, the second branch of which extends vertically by a dimension greater than that of the first branch in order to be secured above the handle on the one hand. '' a screen adjustable in rotation and allowing control

  by the operator and on the other hand from a joystick.

  The support and pre-stabilization device according to the present invention comprises a deformable parallelogram P which consists of the plate and of the bracket for its vertical and parallel edges and of the tubes and of fixing means integral with the tube for the other edges parallel but which are arranged in planes capable of changing inclination as a function of the movements of the support and stabilization device by the operator.

  The support and pre-stabilization device according to the present invention comprises a deformable parallelogram P which is carried by the operator's forearm at the level of the bracket integral with the fork forming the first vertical and parallel edge of said parallelogram, while that the force opposite to the bearing is induced by the tube under the pressure force of the forearm at the level of the plate integral with the roller forming the second vertical and parallel edge of said parallelogram.

  The description which follows with reference to the appended drawings, given by way of nonlimiting examples, will make it possible to better understand the invention, the characteristics which it presents and the advantages which it is likely to have.

provide:

  Figure 1 is a perspective view illustrating the support and pre-stabilization device attached to the forearm of an operator according to the present invention.

  Figure 2 is a perspective view showing the support and pre-stabilization device after an upward movement of the operator's forearm.

  Figure 3 is a perspective view showing the support and pre-stabilization device after a downward movement of the operator's forearm.

  Figure 4 is a front view illustrating the support and pre-stabilization device according to the present invention.

  FIGS. 1 to 4 show a support and pre-stabilization device 1 on board and fixed, for example, on the arm 2 of an operator 3 to move in a different movement associated with that of the arm 2 a load, such as for example , a camera 4.

  The support and pre-stabilization device 1 can be mounted and fixed on any other mechanical drive device of the crane type or the like making it possible to set in motion the support and pre-stabilization device 1 in order to move a load. .

  The support and pre-stabilization device 1 comprises a support 5 on which the camera 4 is fixed. The support 5 in the shape of a U receives, opposite to the camera 4, two tubes parallels 6 and 7 which are mounted to rotate freely in said support around horizontal axes 32.

  The tubes 6 and 7 are guided in rotation opposite the support 5 in a plate 8 consisting of two parallel plates holding said tubes in parallel planes and one above the other.

  Thus the tubes 6, 7 are free to rotate at the level of the plates 8 around axes

  horizontal 33 similar to those 32 of the support 5.

  The plate 8 comprises above the tube 6 a roller or a roller 9 having in its middle a groove 10 in a portion of a circle.

  Between the support 5 and the plate 8, the parallel tubes 6 and 7 are joined together by a bracket 11 consisting, for example, of parallel plates 12 between which are sleeves 13 in rotation traversed respectively by the tubes 6 and 7 in order to '' guiding them in translation and rotation.

  The bracket 11 is arranged in a vertical plane and parallel to that containing the end plates 8 of the support and stabilization device 1.

  The bracket 11 is placed at a distance d from the plate 8 which represents approximately one third of the total distance L of the tubes 6 and 7, between

the support 5 and said plate 8.

  The bracket 11 comprises below the lower tube 7 a counterweight or counter torque 14 which is free to rotate between the plates 12 around a horizontal axis 35 35 and which can be constituted, for example, by the battery of the apparatus of taken

of views 4.

  The counterweight 14 can be arranged differently on the stem 11 without changing its main function which consists in producing a lever arm 40 making it possible to recover the torque exerted by an on-board mass, as for

  example in our case a camera 4.

  Also, the counterweight 14 can be placed on the support device, on a support other than that of the bracket 11, but always at a certain distance from 45 the on-board mass 4 to constitute a lever arm making it possible to recover

the torque exerted by said mass.

  The bracket 11 comprises, above the upper tube 6, a U-shaped fork 15 of which at least one of the vertical branches 16 carries, free to rotate around

  an axis 17, a plate 18 which is integral with a gutter 19 intended to receive the lower part of the forearm 20 of the operator 3.

  The gutter 19 has an internal profile which intimately follows that of the external forearm 20 to avoid any friction and displacement of the latter in the

  support and stabilization device 1.

  The plate 18 is integral with a substantially vertical tube 21 carrying at its free end a shell 22 adjustable in height and in rotation to come into abutment 10 tight against the upper part of the forearm 20 to wrap the latter

with the gutter 19.

  The plate 18 is secured below the gutter 19 to a tube 23 arranged in a plane parallel to that containing the tubes 6 and 7.

  The tube 23 freely slides inside the groove 10 of the roller 9 during the use of the support and stabilization device 1.

  The U-shaped fork 15 has on the other vertical branch 24 parallel to the first one 16 a slide 25 sliding vertically on the branch 24 so as to be able to be adjustable in height and to be immobilized at the height desired by the operator 3.

  The slide 25 is integral perpendicular to its sliding direction 25 with a handle 26 which is arranged horizontally between the two arms 16 and 24 of the fork 15 so as to be in the extension of the gutter 19 and to receive the hand 27 of the operator 3.

  The slide 25 is secured opposite the handle 26 of a central unit 28 30 comprising all the controls necessary for piloting and adjusting

the camera 4.

  This central unit 28 is positioned in the extension of the handle 26 so that the operator 3 can by means of the thumb of his hand 27 act on one

  at least control buttons 29 of said unit.

  On the other hand, the handle 26 and the central unit 28 are carried by the same horizontal axis free in rotation allowing a pivoting of said handle and of the central unit.

  This central unit 28 can be controlled by any other means as a function of the mechanical drive device on which the support and pre-stabilization device 1 is fixed.

  The branch 24 of the fork 15 extends vertically by a dimension greater than that of the branch 16 so as to be secured above the handle 26 of a screen 30 allowing the operator 3 to control the images obtained by the camera 4.

  The screen 30 is adjustable in rotation about its axis to present a different inclination in order to guarantee the operator 3 perfect visibility of the images.

  The branch 24 comprises in the extension of the screen 30 and above the central unit 28 a control lever 31 allowing another adjustment of the camera 4 and more particularly that of the focusing. This control lever 31 is controlled by the other hand of the operator 3 or 10 any other means depending on the mechanical drive device on which

  the support and pre-stabilization device 1 is fixed.

  The fork 15 comprises, for example, in a vertical direction opposite to that of the branches 16 and 24, a stop 34 making it possible to limit the angular displacements 15 of the counterweight 14 during different movements of the device.

support and pre-stabilization 1.

  It is noted that each FIG. 1 to 4 illustrates an example of position and movement of the support and pre-stabilization device 1 as a function of the movements of the arm 20 and of the forearm 20 of the operator 3 while maintaining the device

  4 views in stable horizontal and vertical planes.

  It can be seen that certain elements constituting the support and pre-stabilization device 1 form a deformable parallelogram P, namely: * the plate 8 and the bracket 11 secured to the fork 15, forming the vertical and parallel edges of the deformable parallelogram P, * The tubes 6, 7 and the plate 18 secured to the tube 23 forming the other edges 30 which are parallel but which are arranged in planes liable to change

  tilt as a function of the movements of the support and pre-stabilization device 1.

  The deformable parallelogram P is located opposite the support 5 secured to the on-board load constituted by the camera 4 causing it to shift, which it is necessary to maintain permanently, when the device is moving. support and stabilization 1, in a vertical and horizontal balance.

  Indeed, it is noted that the support and pre-stabilization device 1 makes it possible to carry a load, for example a camera for taking views 4, placed offset at the end of a deformable parallelogram P, while maintaining the vertical and horizontal balance of this load.

  It can be seen that the load offset, formed by the camera 4, causes a torque which must be caught up. This torque is caught up by means of a pivoting mass located, for example, on the parallelogram P, such as for example the battery 14, thus acting as a lever arm making it possible to catch up the torque and to produce the balance of the load on board.

  This balance of the on-board load is only constant if the parallelogram P is carried, either by the mechanical drive device of the crane type or the like, or by the forearm 20 of the operator 3, at the level of the '' one of its edges parallel and vertical, by opposing an equivalent force at the level of the other edge

parallel and vertical.

  Thus, in our exemplary embodiment, the deformable parallelogram P is carried by the forearm 20 of the operator 3 at the level of the bracket 11 integral with 10 the fork 15 forming the first vertical and parallel edge of said parallelogram, while the opposite force is induced by the tube 23 under the pressure force of the forearm 20 at the level of the plate 8 secured to the roller 9 forming the second vertical and parallel edge of said parallelogram.

  It is noted that the balance of the support device 1 according to the present invention comes from a pre-stabilization obtained by the offset of the on-board load recovered by the deformable parallelogram P and its counterweight or counter torque 14 as well as the opposite forces applied by the operator's arm on the deformable parallelogram P during movements of said arm.

  It is noted that a mechanical device can be provided between the support 5 and the camera 4 for rotating said camera in a geometric reference x, y, z in three distinct directions each having an amplitude of 180 degrees.

  It should moreover be understood that the foregoing description has been given only by way of example and that it in no way limits the field of the invention from which one would not depart by replacing the details of executions described by any other equivalent.

Claims (16)

  1. Support and pre-stabilization device for an on-board load (4), characterized in that it comprises an articulated structure arranged so as to constitute a deformable parallelogram P, one of the edges of which extends to carry offset the load (4) and force recovery means making it possible to maintain the vertical and horizontal balance of this load   during movement of the structure.   2. Support and pre-stabilization device according to claim 1, characterized in that the force recovery means for balancing the load (4) consist of the deformable parallelogram P carrying an articulated counterweight (14) and by opposite and vertical external efforts   applied to the vertical and parallel edges of said parallelogram.   3. Support and pre-stabilization device according to claim 1, characterized in that it comprises fixing means (19) for retaining   of the deformable parallelogram P on the arm (2, 20) of an operator (3).   4. Support and pre-stabilization device according to claims 1 to 3, characterized in that it comprises an articulated structure which consists of a support (5) carrying the load (4), of tubes (6, 7 ) guided in rotation at each end at said support (5) and a plate (8), said tubes   being guided in translation and in rotation between the support and the plate in a bracket (11) carrying at its upper end the fixing means (19) and at its lower end the articulated counterweight (14), while the fixing means ( 19) are integral with a tube (23) which cooperates freely with the platinum (8).   5. Support and pre-stabilization device according to claim 4, characterized in that the tubes (6, 7) are guided in rotation in a support (5) U-shaped and in a plate (8) consisting of two 35 parallel plates holding said tubes in parallel planes and one above the other.   6. Support and pre-stabilization device according to claim 5, characterized in that the plate (8) comprises above the tube (6) a roller 40 (9) having in its middle a groove (10) in portion of circle intended for   receive the tube (23) of the fixing means (19).   7. Support and pre-stabilization device according to claim 5, characterized in that it comprises between the support (5) and the plate (8), a bracket (11) which consists of parallel plates (12) between which are   guided in rotation of the sleeves (13) crossed respectively by the tubes (6, 7).   8. Support and pre-stabilization device according to claim 4, characterized in that the bracket (11) is placed at a distance d from the plate (8) which represents approximately one third of the total distance L of the tubes (6 , 7) between the support (5) and said plate (8). 9. Support and pre-stabilization device according to claim 4, characterized in that the bracket (11) comprises below the lower tube (7) a counterweight (14).   10. Support and pre-stabilization device according to claim 4, characterized in that the bracket (11) comprises, above the upper tube (6), a U-shaped fork (15), at least one of the vertical branches (16) door free in rotation about an axis (17) a plate (18) which is integral with a part of a gutter (19) intended to receive the part   lower part of the forearm (20) of the operator (3) and on the other hand of a tube (23) which slides on the roller (9) of the plate (8).   11. Support and pre-stabilization device according to claim 10, 20 characterized in that the plate (18) is integral with a substantially vertical tube (21) carrying at its free end a shell (22) adjustable in height and in rotation to come into tight contact against the upper part of the forearm   (20) to wrap the latter with the gutter (19).   12. Support and pre-stabilization device according to claim 10, characterized in that the U-shaped fork (15) has on the second vertical branch (24) parallel to the first (16) a slide (25) which is integral on the one hand perpendicular to its direction of sliding with a handle (26) which is arranged horizontally between the two branches (16, 30 24) of the fork (15) to be in the extension of the gutter (19 ) and receive the hand (27) of the operator (3) and on the other hand opposite the handle (26) of a central unit (28) comprising control buttons   (29) necessary for controlling and adjusting the camera (4).   13. Support and pre-stabilization device according to claim 12, characterized in that the second branch (24) of the fork (15) extends vertically by a dimension greater than that of the first branch (16) for be secured above the handle (26) on the one hand a screen (30) adjustable in rotation and allowing control by the operator (3) and on the other hand a control lever (31).   14. Support and pre-stabilization device according to claim 12, characterized in that the fork (15) comprises in a vertical direction and opposite to that of the branches (16, 24) a stop (34) making it possible to limit 45 the angular displacements of the counterweight (14) during the different   movements of the support and stabilization device (1).   15. Support and pre-stabilization device according to claim 4, characterized in that the deformable parallelogram P consists of the plate (8) and the bracket (11) for its vertical and parallel edges and tubes (6, 7) and fixing means (19) integral with the tube (23) for the other parallel edges but which are arranged in planes capable of   change the incline according to the movements of the support and stabilization device (1).   16. Support and pre-stabilization device according to claim 15, 10 characterized in that the deformable parallelogram P is carried either by the mechanical drive device of the crane type or the like, or by the forearm 20 of the operator 3, at the level of the bracket (11) integral with the fork (15) forming the first vertical and parallel edge of said parallelogram, while the force opposite to the bearing is induced by the tube (23) under the force pressure either from the mechanical drive,   either of the forearm (20) at the level of the plate (8) integral with the roller (9) forming the second vertical and parallel edge of said parallelogram.