JPH09219850A - Camera tilt adjustment device for video conference system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively control the turning of a TV camera by turning a pinion and a ring gear by turning a turning member. SOLUTION: This device is provided with a support member for rotatably supporting the TV camera 3, the ring gear 2 integrally provided on the support member, the pinion 6 fitted to the gear 2 and the turning member coaxial with the pinion 6. Then, the ring gear 2 is attached to a bracket 1 and the bracket 1 is tightened together to the camera 3 by a shaft 4 to be a rotary shaft. Also, the pinion 6 is engaged through the bracket 5 to the ring gear 2. The shaft 7 and an adjustment dial 8 are respectively fixed coaxially with the pinion 6. By the constitution, by turning the adjustment dial 8, the bracket 1 and the fixed camera 3 are rotated in the same direction as the adjustment dial 8 with the rotary shaft (shaft 4) as a supporting point.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera tilt adjusting device in a video conference system.

[0002]

2. Description of the Related Art As a conventional technique of a camera tilt adjusting device for a video conference system, there is Japanese Utility Model Laid-Open No. 2-95980. FIG. 3 is a perspective view of a conventional videophone device,
FIG. 4 is a perspective view of a conventional camera adjustment mechanism.

According to the present technique, the camera 11 and the monitor 18 are housed in the same casing 19, and the camera 11 is operated by operating the adjusting knob 16.

The adjusting mechanism shown in FIG. 4 holds a camera 11 and a bracket 13 having a support shaft 12 for tilting operation.
The angle 14 fitted into the bracket 13 at a position apart from the support shaft 12, the feed screw 15 arranged perpendicularly to the angle 14, and the feed screw 15 positioned horizontally with respect to the feed screw 15 The center is composed of an adjusting knob 16 which is the center of rotation.

The feed screw 15 and the adjusting knob 16 are fixed to each other, and when the adjusting knob 16 is rotated horizontally, the angle 14 engaged with the feed screw 15 is moved up and down. Further, since the opposite end of the angle 14 is inserted and fitted into the hole 17 provided at a position apart from the tilt support shaft 12, when the angle 14 moves up and down, the bracket 13 rotates about the support shaft 12. , The camera 11 is tilted.

[0006]

However, since the tilt motion is generated by the vertical movement of the angle 14, the pitch feed of the feed screw 15 corresponding to the vertical amount required for tilt is the same as the diameter of the feed screw 15. Although it depends on the structure, unless the adjusting knob 16 is rotated a considerable number of times, the structure cannot reach the predetermined position. When the hole portion 17 of the bracket 13 is brought closer to the support shaft 12 in order to speed up the feeding, the torque for lifting the angle 14 becomes large and adjustment becomes difficult.

Further, the adjusting knob 16 needs to be separated from the camera 11 by a diameter equal to or larger than the diameter of the adjusting knob 16 because of its structure, and the adjusting position of the adjusting knob 16 is arranged at a position considerably separated from the camera 11. Since it must be done, there is a problem that the width of the entire mechanism becomes large.

Further, since the adjusting knob 16 is moved horizontally to perform the tilting operation, the tilting operation and the movement of the adjusting knob 16 are not interlocked with each other, and the moving direction of the adjusting knob 16 and the vertical direction of the tilt are frequently repeated. It is expected to get lost.

An object of the present invention is to provide a camera tilt mechanism which can be easily adjusted in view of such problems.

[0010]

In order to solve the above-mentioned problems, the present invention provides a support member for rotatably supporting a TV camera in a video conference system device, and a ring integrally provided on the support member. A gear, a pinion fitted to the ring gear, and a rotating member coaxial with the pinion are provided, and the TV camera is rotated by rotating the pinion and the ring gear by a rotating operation of the rotating member. Is configured to be controlled.

[0011]

Embodiments of the present invention will be described below.

FIG. 1 is a front view of a camera adjusting mechanism of the present invention, and FIG. 2 is a schematic side view.

In the figure, a ring gear 2 is attached to a bracket 1, and the bracket 1 is fastened to a camera 3 together by a shaft 4 serving as a rotation axis (fulcrum). A pinion (small gear) 6 meshes with the ring gear 2 via a bracket 5. The shaft 7 and the adjustment dial 8 are fixed coaxially with the pinion 6. With these configurations, when the adjustment dial 8 is rotated, the camera 3 fixed to the bracket 1 rotates in the same direction as the adjustment dial 8 with the rotation shaft (shaft 4) as a fulcrum.

[0014]

As described above, according to the present invention, the movement of the adjusting dial and the tilting movement of the camera are linked with each other, and the operability is good. The camera operates in the same direction as turning the adjustment dial. Moreover, the number of parts can be reduced by using the ring gear. It is possible with one spur gear and one ring gear.

[Brief description of drawings]

FIG. 1 is a front view of a camera adjustment mechanism of the present invention.

FIG. 2 is a schematic side view of the camera of the present invention.

FIG. 3 is a perspective view of a conventional videophone device.

FIG. 4 is a perspective view of a conventional camera adjustment mechanism.

[Explanation of symbols]

 1 Bracket 2 Ring Gear 3 Camera 4 Shaft 5 Bracket 6 Pinion 7 Shaft 8 Adjustment Dial 11 Camera 12 Spindle 13 Bracket 14 Angle 15 Feed Screw 16 Adjustment Knob 17 Hole

Claims (1)

[Claims] 1. In a video conference system apparatus, a support member for rotatably supporting a television camera, a ring gear integrally provided on the support member, a pinion fitted to the ring gear, and the pinion. A video conference system comprising: a coaxial rotating member, wherein the rotation of the television camera is controlled by rotating a pinion and a ring gear by rotating the rotating member. Camera tilt adjustment device.