JPH11142956A - Camera stabilizer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a camera stabilizing base compact and inexpensive by stabilizing a camera on a gimbal by the holding power of a flywheel. SOLUTION: A second rotary shaft 7 arranged in a frame body 5 is disposed in a direction orthogonally crossed to a first rotary shaft 4 and a gimbal mechanism 10 is constituted of the respective shafts 4 and 7. The shaft 7 is provided with a supporting shaft 11 in a vertical direction orthogonally crossed to the shafts 4 and 7. Then, the upper part of the shaft 11 is provided with the camera having a biaxial driving base 12 and the lower part thereof is provided with a motor 15 having the flywheel 14 by exposing it. When the shaft 11 is inclined in a biaxial direction because a ship or an airplane in which the camera stabilizing base constituted in such a way is loaded oscillates, the inclination of the shaft 11 is quickly corrected and naturally restored in the vertical direction by the holding power of the flywheel 14 rotated at a high speed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera stabilizing base, and more particularly to a novel improvement for stabilizing a camera on a gimbal by a holding force of a flywheel.

[0002]

2. Description of the Related Art Conventionally, there are various types of camera stabilizing bases of this kind. Generally, at least a two-axis motor and a sensor are used, and a gyro device having a complicated structure is used to stabilize the space of the camera. Was getting.

[0003]

Since the conventional camera stabilizer is configured as described above, there are the following problems. That is, in the conventional configuration, the configuration is complicated and large because the two-axis motor and the sensor are used. Therefore, it has been extremely difficult to cope with downsizing and cost reduction.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and in particular, a camera capable of achieving miniaturization and cost reduction by measuring the stability of the camera on the gimbal by the holding force of the flywheel. The purpose is to provide a stable platform.

[0005]

SUMMARY OF THE INVENTION A camera stabilizer according to the present invention comprises a holder provided on a base, and a first rotary member rotatably provided on the holder via a pair of first bearings. A shaft, a frame body provided integrally with the first rotating shaft, and a frame body rotatably provided in the frame body via a pair of second bearings and arranged orthogonally to the first rotating shaft. Two rotation shafts, a support shaft integrally connected to the second rotation shaft, and provided perpendicular to and perpendicular to each of the rotation shafts; a camera provided above the support shaft; And a motor having a flywheel provided at a lower part of the camera, wherein the camera is kept horizontal by rotating the flywheel, and the camera is mounted on a two-axis drive table provided at an upper part of the support shaft. It is provided in.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a camera stabilizer according to the present invention will be described below with reference to the drawings. FIG.
Is a base having a plate-like shape in its entirety, and a holder 2 (which may be frame-shaped as well as rod-shaped) provided vertically on the upper surface of the base 1 has one pair. The first rotating shaft 4 is rotatably provided in the direction of arrow A via the first bearing 3. The first rotating shaft 4 has a pair of first shafts 4a,
4b, a frame-like frame 5 is provided between the first shafts 4a and 4b, and a second rotating shaft 7 is provided in the frame 5 via a pair of second bearings 6. It is provided rotatably. The second rotating shaft 7 is disposed in a direction orthogonal to the first rotating shaft 4, and the respective rotating shafts 4 and 7 constitute a gimbal mechanism 10.

The second rotating shaft 7 has the rotating shafts 4,
7, a support shaft 11 is provided in a vertical direction orthogonal to the second rotation shaft 7. The support shaft 11 and the second rotation shaft 7
Are connected integrally by penetrating the support shaft 11.

Above the support shaft 11, a camera 13 such as a CCD or IR having a well-known two-axis driving base 12 is provided. It is configured to be able to operate freely in two axial directions of the tilt direction T. A motor 15 having a flywheel 14 exposed is provided below the support shaft 11. The flywheel 14 is configured to have a sufficient weight, and the gravity of the flywheel 14 causes the support shaft 11 to move. It is configured to be directed in the vertical direction even if it is inclined in any of the two axes.

Next, the operation will be described. First, when the imaging operation of the camera 13 is performed in a state where the motor 15 is rotated and the flywheel 14 is rotated at a high speed, a ship or an airplane equipped with the camera stabilizer is shaken and the support shaft 11 is moved in two axial directions. In the case of inclination, the inclination of the support shaft 11 is quickly corrected by the holding force of the flywheel 14, and the support shaft 11 can return naturally in the vertical direction.

[0010]

Since the camera stabilizer according to the present invention is constructed as described above, the following effects can be obtained. That is, the space stability of the camera can be achieved only by providing a motor having a flywheel in the gimbal mechanism without using a two-phase motor and a sensor as in the related art, and it is possible to reduce the size, simplify the configuration, and reduce the cost. Can be achieved.

[Brief description of the drawings]

FIG. 1 is a configuration diagram illustrating a camera stabilizer according to the present invention.

[Explanation of symbols]

 Reference Signs List 1 base 2 holder 3 first bearing 4 first rotating shaft 5 frame 6 second bearing 7 second rotating shaft 11 support shaft 12 two-axis drive stand 13 camera 14 flywheel 15 motor

Claims (2)

[Claims] A first rotating member rotatably provided on a holder (2) provided on a base (1) via a pair of first bearings (3) on the holding member (2). A shaft (4), a frame (5) provided integrally with the first rotating shaft (4), and rotatable through a pair of second bearings (6) within the frame (5). A second rotating shaft (7) disposed at right angles to the first rotating shaft (4); and each of the rotating shafts (4, 7) integrally connected to the second rotating shaft (7). A support shaft (11) provided perpendicularly and perpendicular to the camera, a camera (13) provided above the support shaft (11), and the support shaft (1
Motor having a flywheel (14) provided below 1)
(15) A camera stabilizer, wherein the flywheel (14) is rotated to keep the camera (13) horizontal. 2. The camera stabilizer according to claim 1, wherein said camera is provided on a two-axis drive base provided above said support shaft. .