JPH01255383A - Movement control device suspended camera - Google Patents

Abstract

PURPOSE:To facilitate the fitting or removing of a camera by fitting a gimbals construction with a pair of shafts to be fixed to a single ring and not to be rotated and causing the gimbals construction to be irrelative to the ring inside the ring. CONSTITUTION:A supporting means 2 of the camera and a ring 1, to which a wire is fitted, are made into different structures, the supporting means 2 of the camera is located inside the ring 1, it is fixedly fitted to the ring 1 by a pair of shafts 26, and the gimbals construction is provided inside the shafts 26. The wire and the ring 1 are fitted by ring fittings 8A-8D, and thereafter, the supporting construction of the camera is fitted to the ring. At such a time, it is simply fitted by a pair of shafts. Thus, a work to install or remove a suspended camera movement control device to or from a field can be facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the structure of a movement control device for a suspended camera that photographs an object within an area to be photographed using a camera suspended at a high position.

INDUSTRIAL APPLICATION This invention is utilized for a television camera or a movie camera.

〔overview〕

The present invention provides a structure in which a camera is attached to a single ring suspended by several wires via a gimbal structure. The mounting and gimbal structure is constructed inside this ring and independent of this ring, so that the camera can be easily mounted or removed.

[Conventional technology]

Conventionally, a plurality of pulleys are placed at a high position surrounding the area to be photographed, a plurality of wires are suspended from each of the pulleys, and a plurality of wire winches are used to wind each end of each of the wires. a ring to which each other end of the wire is attached, a camera support means attached to the ring and including a gimbal structure, and a control for interconnecting and controlling a plurality of wire winches. U.S. Pat. No. 4.625.938 and U.S. Pat. No. 4.710.819,
No. (the corresponding Japanese application was disclosed in Japanese Patent Application Laid-Open No. 60-500551) is known.

An overall explanatory diagram of this conventional structure is shown in FIG. This device uses pulleys installed on four pillars to connect four wires 51A.
51B are attached to one ring 52, and a camera support means including a gimbal structure with a gyro section 53 attached thereto is attached to this ring 52.

FIG. 4 is an explanatory diagram of the gimbal structure portion of this conventional structure. Suspension rings 54, each having a wire attached thereto, are fixed to the ring 52. In this structure, this ring 52 itself is the first gimbal, and this ring 52 has an axis 52A.
A second gimbal 55 is rotatably attached to the shaft 55A, and a vertical shaft 56 supporting a gyro section (not shown) is attached to the shaft 55A.
It is rotatably attached to the second gimbal 55 via. Reference numeral 57 is a rotation axis that holds a camera (not shown) and rotates the camera panorama around a vertical axis.

[Problem that the invention seeks to solve]

This conventionally structured device is an excellent device that can photograph a wide range of black-eye images in stadiums and gymnasiums, but when using it, the following problems were experienced.

In other words, when installing this equipment in the stadium,
It is necessary to install four pillars, extend four wires inserted through pulleys provided at the top of each pillar to the center of the stadium, and attach the tips of these four wires to one ring 52. It is.

However, in the conventional structure described above, the ring 52 is integrated with the entire camera support structure, as shown in FIG. 4, and this overall structure is a fairly precise mechanical structure. Therefore, it is necessary for two or three workers to manually support the heavy structure in which the ring 52 is integrated, and for processing each wire, one worker holds each end of the four wires. Workers are required.

Additionally, if it becomes necessary to adjust the camera or gimbal structure, the entire structure must be removed from the four wires, which also requires extensive work.

These operations are necessary every time this device is installed or removed at each site, and every time adjustment work is performed.

The present invention improves on this, and aims to provide a device that allows installation, removal, and adjustment of the device at a site to be carried out in a short period of time with a small number of people.

[Means for solving problems]

The present invention provides a separate structure from the support means for the camera and the ring to which the wire is attached, and the support means for the camera comprises:
The gimbal structure is located inside the ring and fixedly attached to the ring by a pair of shafts, and the gimbal structure is provided inside the shafts.

The structure is fixedly attached by a ring and a pair of shafts.
a groove formed in the ring into which the shaft fits; a pin that fits into the groove and passes through the shaft and the ring; a bracket that is placed over the shaft; and a bracket that is tightened against the ring. The screws may include a small number of screws.

The gimbal structure includes a first gimbal structure for the shaft attached to the ring, and a second gimbal structure provided inside the first gimbal structure, and the first gimbal structure and the second gimbal structure are connected to each other. The structures each include means for controlling the angle of rotation thereof by a motor, and the controlling means preferably includes automatic control means based on a gyro mounted on the second gimbal structure.

The camera support means may include, inside the second gimbal structure, a first rotation axis that is controlled around a vertical axis, and a second rotation axis that is attached to the first rotation axis and that controls the depression angle. .

[Effect]

The procedure for attaching the wire to the support structure for the camera is to first attach the wire to a ring that is separate from the support structure. A single ring is lightweight and can be handled roughly without causing any problems, making it an extremely simple task. Once the wire and ring are attached, the camera support structure is attached to the ring.

In this case, it is simply mounted by a pair of shafts. This work is carried out by fitting the support structure onto a ring placed on a stand from above, inserting a pin into the shaft to fix rotation, and screwing the bracket. This work can be done by at most two people without using much force. There is no impact on the support structure of the camera.

Removal can also be easily done by reversing this procedure.

Even if adjustment work or camera replacement is required, this can be done by simply replacing the support structure.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is an exploded explanatory view of a ring 1 and a camera support structure 2, which are the main parts of an embodiment of the present invention, and FIG. 2 is an explanatory diagram of the entire embodiment.

In FIG. 2, four pillars 4 are erected to surround a ground 3, which is the photographed area of the stadium, and four pulleys 5 are respectively installed at high positions on the tops of the pillars. Four wires 6A, 6B, 6C, 6D each connect to four pulleys 5.
is suspended. 4 wire winches near each of the pillars 4, i.e. near the pulleys? A, 7B, 7C
，? One each of wires D is installed, and each wire is configured to wind up one end of each of the wires 6A, 6B, 6C, and 6D. The other ends of the four wires 6A to 6D are respectively attached to four ring-shaped fittings 8A, 8B, and 8C18D provided on the same ring 1, as shown in FIG. Furthermore, a camera support means 2 is attached to this ring 1. The camera support means 2 includes a gimbal portion including a first gimbal structure 21 , a second gimbal structure 22 , and a gyro section 23 , and a holding frame 25 for the camera 24 . Also each wire winch 78~7D
are movable cabtire cables 9A to 9, respectively.
Console desk 10 which is one control device via D
are controlled in relation to each other. In addition, the console desk 10 has a cabtyre cable 9E and an antenna 1.
1, the wireless communication means performs various controls such as reception of image signals from the camera, attitude control of the camera, and imaging control.

Here, the feature of the present invention is that, as shown in FIG. The first gimbal structure 21 mounted on the shaft 26 is provided inside the ring 1 by means of this shaft 26. That is, no gimbal or structural parts are attached to ring 1.

The structure in which the ring l and the pair of shafts 26 are fixedly attached includes a pair of grooves I in which the shafts 26 are respectively fitted in the ring 1.
A is provided inside this groove IA and a shaft 26 that fits therein.
one pin 27 passing through each of the pin holes IB and 26A provided in each of the pin holes IB and 26A, a pair of bracket ICs that fit over the pair of shafts 26, and the bracket IC Each includes four screws ID to be tightened to the ring 1, respectively.

The gimbal structure includes a first gimbal structure 21 that rotatably holds a pair of shafts 26 fixedly attached to the ring 1, and a frame 21A inside the first gimbal structure 21.
and a second gimbal structure 22 to which a pair of shafts 28, each of which is rotatably held, is fixed. The rotation angles of the first gimbal structure 21 and the second gimbal structure 22 are controlled by driving the boots 1j21c and 22C by motors 21B and 22B, respectively. A transmission 2 is connected between each motor and pulley via a belt.
1D and 22D are intervening. These rotation angles are automatically controlled based on a gyro (not shown) of the gyro section 23 mounted in a hollow cylinder 29 provided inside the second gimbal structure 22.

In this way, the hollow cylinder 29 is held vertically regardless of the posture of the ring 1.

Furthermore, a holding frame 25 for holding the camera 24 is provided at the bottom of the camera support means. This is a hollow cylinder 29
A first rotating shaft 3 is rotatably installed coaxially inside the shaft.
0 by a pin 31. This first rotation axis 30 is driven by a motor 32 fixed to the second gimbal structure 22. Rotationally driven via J32A. As mentioned above, the axis of the hollow cylinder 29 always remains vertical, so
The holding frame 25 rotates around a vertical axis. Also, the holding frame 25
A second rotating shaft 3 is provided in a direction orthogonal to the first rotating shaft 30.
3 is attached and the motor 34 is attached to the holding frame 25.
is rotationally driven via the pulley 34A. A clamping part 35 is attached to the second rotating shaft 33, which rotates the second rotating shaft 33 coaxially and clamps the camera 24 in a detachable manner.

Therefore, the lens direction of the camera 24 is rotated 360 degrees around the vertical axis by the motor 32, and 360 degrees around the horizontal axis by the motor 34.

Since this embodiment has the structure as described above, the panoramic angle of the camera lens can be adjusted by operating the pan knob IOA of the console desk 10, and the elevation angle can be adjusted by operating the tilt lever 10B. ,
Each can be controlled.

Furthermore, by operating the knobs IOC and IOD, the zoom angle and depth of focus of the camera can be freely controlled. These control signals are transmitted to the camera via the antenna 11 by wireless communication means. Further, an image captured by the camera is transmitted from the camera 24 to the antenna 11 by wireless communication means. In FIGS. 1 and 2, the antenna on the supporting means side of the camera is not particularly shown, but
This is well known. Further, the power supply current for each motor of the camera support means is transmitted via four wires 6A to 6D.

Although the power transmission end on the ring side of this wire is not particularly shown,
They are assembled into one persistent connector that plugs into a receptacle inside the gimbal structure.

By winding or unwinding the wire of each wire winch 78 to 7D, the position control of the ring 1 is controlled by the console desk 1.
This is performed by the wire winch operation unit 10E of No. 0.

The procedure for installing this device in the field is as follows.

■ Pass the wires 6A to 6D through the pulley 5, respectively.

(2) Pull out the tips of the wires 6A to 6D to the center of the stadium and attach them to the four ring-shaped fittings 8A to 8D of the ring 1, respectively.

(2) Place the camera support structure on top of the ring 1, and fit the shaft 26 into the groove IA of the ring.

■ Insert the pin 27 into the pin holes 26A and IB.

■ Screw the bracket IC.

■ Connect the electrical connector (not shown) to the camera device.

To remove it, simply follow the above steps in reverse.

Each step of the above work is simple and can be performed by at most two workers.

〔Effect of the invention〕

As explained above, according to the present invention, the work of installing or removing the suspended camera movement control device at the site is significantly simplified. With this structure, this type of equipment, which previously had to be installed at a specific stadium, has become portable and can be taken and installed anywhere at the customer's request. In this case, only 2 to 3 workers are required and the work can be completed in a very short time. In the event that the camera or support structure requires inspection or adjustment during use, the support structure can be completely replaced with a spare one.

[Brief explanation of the drawing]

FIG. 1 is an exploded explanatory view of essential parts of an embodiment of the present invention. FIG. 2 is an overall explanatory diagram of the above embodiment. FIG. 3 is an overall explanatory diagram of a conventional example. FIG. 4 is an explanatory diagram of main parts of a conventional example. 1.52...Ring, IA...Groove, IB, 26A・
...Pin hole, IC...bracket, ID...screw,
2...Camera support structure, 3...Ground, 4...
・Column, 5... Pulley, 6A-6D, 51A-51D...
・Wire, 7A~7D...Wire winch, 8A~
8D... Ring-shaped metal fitting, 98-9D, 9E... Cabtie cable, 10... Console desk, 10A
...Pan knob, 10B...Tilt lever, tOCl
loD...Knob, 11...Antenna, 21.22.
...first and second gimbal structures, 21A...frame,
21B, 22B, 32.34...Motor, 21C
, 22C, 32A. 34A...Pulley, 21D, 22D...Transmission,
23.53...Gyro part, 24...Camera, 25
...Holding frame, 26.28.52A, 55A...shaft,
27.31...pin, 29...hollow cylinder, 30...
- First rotating shaft, 33... Second rotating shaft, 35... Holding part, 54... Hanging ring, 55... Second gimbal, 5
6... Vertical axis, 57... Rotation axis. Patent applicant Tamco Co., Ltd. Agent Patent attorney Nao Ide Takayoshi Koi 1 Mizohisa Explanatory drawing, ¥11 Diagram

Claims (1)

[Scope of Claims] 1. n pulleys (n is an integer of 3 or more) arranged at high positions so as to surround the area to be photographed, and n wires suspended from each of the pulleys. , n wire winches each disposed near the pulley and winding one end of each of the wires, a ring to which each other end of the n wires is attached; A movement control device for a hanging camera comprising a camera support means including a gimbal structure, and one control device for controlling the n wire winches in relation to each other, wherein the camera support means comprises the ring A movement control device for a suspended camera, characterized in that the gimbal structure is located inside the ring and is fixedly attached to the ring by a pair of shafts, and the gimbal structure is provided inside the shaft. 2. The structure fixedly attached to the ring and the pair of shafts includes a groove formed in the ring and into which the shaft fits, and a pin that fits into the groove and penetrates the shaft and the ring;
2. A suspended camera movement control device according to claim 1, comprising a bracket placed over said shaft and a small number of screws for tightening said bracket to said ring. 3. The gimbal structure includes a first gimbal structure for the shaft attached to the ring, and a second gimbal structure provided inside the first gimbal structure, the first gimbal structure and the second gimbal structure. The hanging camera according to claim 1, wherein each of the gimbal structures includes means for controlling the rotation angle thereof by a motor, and the controlling means includes automatic control means based on a gyro mounted on the second gimbal structure. movement control device. 4. The camera support means includes, inside the second gimbal structure, a first rotation axis controlled around a vertical axis, and a second rotation axis attached to the first rotation axis and controlling the depression angle. Item 1: A movement control device for a suspended camera according to item 1.