DE1291771B - Camera trolley for a television camera - Google Patents

Description

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In the case of the known camera carriages, each other is held in motion. The car can go through

Viewfinder, which is usually built into the camera, the cameraman or an assistant can be moved

along with the camera. If at one of the by adding in the appropriate direction at the

such a car also has a seat or a platform handle 13 and / or a control ring

for the cameraman who is pulled with the cable 5 or which is attached to the column 15

If it is moved, the car that rests on the base 10 becomes large and expensive. The ring 14 has

lig, while if no is concerned with the camera with- pointer pairs on, with a straight line between

Moving space is available for the cameraman who shows the position of the wheels,

is, the range of possible vertical movement. A fork 16 is freely rotatable about a vertical one

the camera is relatively limited and the io axis is attached to the column 15 and forms the bearing

Cameraman difficult and unnatural positions for a swivel arm 17 on a horizontal

must take when the camera is on the upper axis 18. At one end of the swivel arm 17 is

or bottom dead center of their range of motion be a bracket 19 rotatably attached, which is through a

finds. Handlebar 20 with a shaft 22 at the upper end of the

Also known is a camera tripod with a ring 15 fork 16 is connected so that the bracket 19 is a

Par, which can be rotated horizontally around the center of the tripod, constant position in relation to the horizontal

allelogram swivel arm on which the camera keeps all when the swivel arm 17 is moved. A

laterally rotatable about its own vertical axis and in yoke 23, which is rotatable about a vertical axis,

the height is movable. is rotatably attached to the bracket 19. A television

The invention is based on the object, a 20 camera C is pivotably mounted by being around

To create a camera car, the viewfinder of which is a horizontal axis between the legs of the

right movement of the camera smaller vertical yoke 23 is movable. The camera has a

Movement than the camera or no moving lens L at all. Lifting and lowering movements of the camera

executes. According to the invention, this is caused by the fact that the swivel arm

makes a camera carriage for a television camera with 25 17 rocking movements, d. H. around the scales

Viewfinder in the form of a monitor in which the camera rotates right axis 18. Usually these will be

on a horizontally rotatable parallelogram movements directly from the hand through the

Swivel arm rotatable around its own vertical axis controlled by meramann. The pivot arm 17 and the

is attached, achieved in that the pivoting parts located thereon are about the axis 18

arm is two-armed and balanced at one end 30, so that very little physical strength

the camera and at the other end the viewfinder open- is required for movement.

takes and that the viewfinder through handlebars at the front at the opposite end of the bracket 29

the lower parallelogram axis of rotation and the rear of the pivot arm 17 are rotatable two perpendicular

attached to the upper parallelogram axis of rotation of the link 24, which is supported by a shaft 25

Swivel arm is connected. 35 are connected to each other, in turn by two

In the following, the invention is connected to the shaft 22 by means of a rod 26. A

Explained in more detail by way of example, with all of the control units 27 described being on the lower part of the handlebars 24

Features on their own as well as in behebiger grain fastened, the upper end of which can be rotated with the flange

bination to one another are essential to the invention. see 28 a monitor platform 29 is connected.

The drawing shows a television camera trolley 40. Control arms are also rotatable on the flanges 28

according to the invention in a perspective view. 30 attached, which at the lower end with the arm 31

The camera carriage shown has a rotatably mounted approximately on the shaft 25. A seeker

triangular, wheeled base 10, 32 in the form of a monitor display set with

under which three cylindrical wheel covers 11 on a hood 33 is attached to the platform 29. the

are brought, made of rubber or another 45 arrangement is made so that the control unit 27

resilient material or made of metal and and the viewfinder 32 practically constant position

extend down to close to the ground, maintained with respect to the horizontal when moving

on which the car is standing. The swivel arm 17 moves within the individual. On the control unit 27

Wheel covers 11 is one of the controls are attached, which are from the ca

three wheels not shown in the drawing, 50 meramann are operated and a focus

on which the car rolls. All wheels are in lung wheel 34 and a focal length adjustment lever 35

have a fork at the lower end of a rotatable lowering.

right spindle. Such a spindle is with a The control unit, the viewfinder, the camera, the optics

Steering rod 12 connected, which has a pivotable and various servomotors that are used for actuation

Has handle 13 and a switch lever, which 55 are required, are through electrical lines

it allows the cameraman to be connected between normal, some of which, namely the lines

Control and slide to choose. When pushing, 36, are shown. In addition, an in the

with the axis of rotation of all wheels parallel to each other, drawing not shown cable the camera

but remain changeable in the direction, wagons with a control console in an apparatus-

the three vertical spindles with the forks for the 60 room or the like, so that all the necessary lines

Wheels with the help of one or more endless chains including those for the power supply for the

connected, which are located in the base 10. When the camera and the viewfinder and the servomotors to

the toggle lever is set to normal control, control of the lens iris and for the headphones

so the cameraman's spindle connected to the handlebar can be present. The lens L and

freely with respect to the chain wheels or the chain 65 the camera C have the necessary servomotors

move the wheel so that the wheel is up under the handlebars. A servomotor 37 is used to tilt the camera,

12 are rotated by the handlebar for steering and in the upper part of the bracket 19 is a

can and the other two wheels coaxially to servomotor, which the yoke 23 around a vertical axis

rotates for the panning movements of the camera. Of course, a camera panning movement can also be used by rotating the pivot arm 17 and the fork 16 about a vertical axis.

Locks, brakes, pawls and speed control devices are provided to limit the inclination and pivoting movement of the pivot arm 17 or the rotation of the cart wheels or to control other movements as needed.

The part of the pivot arm 17 between the bracket 19 and the axis 18 is larger, for example two to five times greater in length than the part between the axle 18 and the links 24, so that the up and down movement of the viewfinder 32 is correspondingly smaller than that of the camera.

The invention results in an improved camera carriage with a larger range of motion the camera in terms of height and increased ease of use compared to ordinary ao Camera tripods.

The invention can be modified in many ways, for example belts, V-belts and pulleys or chains and sprockets or Bowden cables or hydraulic power transmissions instead of electrical devices for controlling the camera and for pan and Tilting movements are used or for focusing and focal length adjustment or interlocks, Brakes and locking devices for the swivel arm or other moving parts.

The camera trolley according to the invention is particularly useful for new, relatively small television cameras suitable, for example, for those with the »Plumbieon« tube.

Claims (10)

Patent claims: 1. Camera trolley for a television camera with a viewfinder in the form of a monitor, in which the Camera on a horizontally rotatable parallelogram swivel arm around its own vertical axis is rotatably mounted, characterized in that the pivot arm (17) is designed with two arms and at one end the Camera (C) and at the other end the viewfinder (32) and that the viewfinder (32) through Handlebars (24, 30) at the front with the lower parallelogram axis of rotation and at the rear with the upper one Parallelogram axis of rotation of the swivel arm; (17) is connected. 2. Camera trolley according to claim 1, characterized in that the rear link (24) of the Attack the viewfinder (32) via an arm (31) on the upper parallelogram axis of rotation. 3. Trolley according to claim 1 or 2, characterized in that the pivot arm (17) in one Fork (16) is mounted, which is freely rotatable about the vertical axis. 4. Trolley according to one or more of the preceding claims, characterized in that that a control unit (27) is at the end opposite to the television camera (C) of the swivel arm (17) is located. 5. Car according to one or more of the preceding claims, characterized in that that the control unit (27) is attached to the front arms (24) of the viewfinder (32). 6. Car according to one or more of the preceding claims, characterized in that that the viewfinder (32) has a platform (29) on which the handlebars (24,30) are hinged are. 7. Trolley according to one or more of the preceding claims, characterized in that that the platform (29) is connected to the swivel arm (17) by means of adjustable links is. 8. Car according to one or more of the preceding claims, characterized in that that the television camera (C) is rotatable about a horizontal axis in a yoke (23) which rotate about a vertical axis can. 9. Car according to one or more of the preceding claims, characterized in that that the fork (16) of the swivel arm (17) can be rotated on a vertical column (15), which is mounted on a base (10) provided with wheels. 10. Trolley according to one or more of the preceding claims, characterized in that that the base (10) provided with wheels is approximately triangular in shape and has three wheels has, one of which is arranged in a fork at the end of a rotatable vertical spindle is connected to a handlebar (12). 1 sheet of drawings