JP3336698B2 - Electric head for camera - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric camera platform for mounting a camera on a ceiling or a wall of a retail store, a bank, a game arcade or the like, and allowing the camera to move freely by electric power.

[0002]

2. Description of the Related Art An example of a conventional electric camera platform for a camera is Japanese Utility Model Publication No. 63-30878. This will be described with reference to FIG. 5. In the camera electric camera platform A, a shaft C is erected on a bracket B mounted on a wall W, and a camera E is mounted on a top of the shaft C via a camera mounting portion D. Be attached. Then, a first electric component F for rotating the shaft C to rotate the camera E in the horizontal direction is installed on the upper surface of the bracket B, and a second electric component G for moving the camera E in the vertical direction is attached to the camera. It is installed in the mounting part D.

[0003]

In the above-mentioned electric camera platform A for a camera, since the two electric components F and G for moving the camera E are separately arranged at the upper and lower positions of the shaft C, it is bulky and large. There is a problem in that it occupies a space and the cost is high due to its complicated structure. The present invention has been made in view of the above, and an object of the present invention is to provide a compact and low-cost electric camera platform.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention comprises a bracket attached to a wall or a ceiling of a building, and a motor that is pivotally mounted on the bracket and that is integrally mounted on the bracket. A drive base incorporated in the drive base, a swing mechanism interposed between the output shaft of one of the motors of the drive base and the bracket, and converting the rotational movement of the output shaft into a vertical swing movement of the drive base; And an electric camera platform for connecting the camera to the output shaft of the other motor of the drive base.

[0005]

When one of the motors of the drive base is operated and the output shaft is turned, the swing mechanism operates to vertically swing the drive base. Since the camera body is installed on the driving base, it vertically swings together with the driving base. When the other motor of the drive base is operated to rotate the output shaft, the camera rotates on the drive base. Therefore, the direction of the camera can be freely controlled. As described above, since the two motors, which are the two electric components, are integrated into the drive base, the electric camera platform is compact.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. 1 is an exploded perspective view showing a camera and an electric camera platform, FIG. 2 is a vertical side view showing a use state, FIG. 3 is a sectional view taken along line YY in FIG. 2, and FIG. 4 is a vertical swing of the camera. It is a vertical side view of the use state which shows a state. Electric pan head for camera 1
A bracket 2 attached to a wall surface W of a building, a driving base 3 pivotally mounted on a tip of the bracket 2, and a bracket 2
And a swing mechanism 4 interposed between the drive base 3 and the drive base 3.

The bracket 2 comprises a mounting base 6 screwed to the wall surface W, and bearing plates 7, 7 protruding forward from both ends of the mounting base 6. A female screw hole 8 is formed at the end of the bearing plate 7, and a stud-shaped swing shaft 9 is inserted into the female screw hole 8. The swing shaft 9 has a male screw 9b formed at the base of a shaft portion 9a. The male screw 9b is screwed into the female screw hole 8 and attached to the bearing plate 7.
The drive base 3 includes two motors M1 and M2 integrally incorporated in a rectangular parallelepiped box-shaped body 10, and has a bearing hole 11 in left and right side walls 10s and 10s of the box-shaped body 10.
The tip of the shaft portion 9 a of the swing shaft 9 is inserted into the bearing hole 11, and the drive base 3 can swing vertically about the swing shaft 9. The motors M1 and M2 incorporated in the drive base 3
For example, a servo motor is used so as to be rotatable at low speed and freely rotatable forward and backward. The motors M1 and M2 are set so that the axes of the output shafts S1 and S2 are orthogonal to each other. The output shaft S1 of the motor M1 projects from the rear wall 10r of the box-shaped body 10 toward the mounting base 6 of the bracket 2. , The output shaft S2 of the motor M2 is the upper wall 1 of the box-shaped body 10.
Projecting upward from 0u.

The swinging mechanism 4 interposed between the bracket 2 and the drive base 3 includes a fixed U-shaped sliding guide arm 4a extending between the bearing plates 7, 7 of the bracket 2, and a motor. Crank member 4b fixed to the tip of output shaft S1 of M1
The ball 4c at the tip of the crank member 4b is engaged with the groove 4d of the sliding guide arm 4a. As the camera 5, a small and lightweight, for example, a small CCD camera is used. A mounting hole 12 is formed on the bottom surface of the camera 5 as shown in FIG.
Are fitted in the mounting holes 12. In addition, although illustration was omitted,
The output shaft S2 and the camera 5 are integrally connected by a suitable connecting and fixing means such as a screw or a nut.

Next, the operation of the electric camera platform 1 will be described. First, when the motor M1 in the drive base 3 is operated to rotate the output shaft S1, the crank member 4b rotates. Since the sphere 4c at the tip of the crank member 4b is engaged with the groove 4d of the sliding guide arm 4a, the crank member 4b
When rotates, the sphere 4c moves horizontally along the groove 4d.
When the sphere 4c moves horizontally by the rotation of the crank member 4b, an upward force acts on the output shaft S1. As described above, since the drive base 3 is pivotally mounted on the bracket 2 by the swing shaft 9, when an upward force acts on the output shaft S 1, the drive shaft 3 is moved to the position shown in FIG. Lean forward to the center. Since the camera 5 is connected to the drive base 3, the camera 5 also tilts forward together with the drive base 3. Then, when the crank member 4b further rotates from the state of FIG. 4, a downward force acts on the output shaft S1, and the drive base 3 and the camera 5 slowly return to their original postures. Therefore, if the output shaft S1 is continuously rotated, the drive base 3 and the camera 5 can be reciprocated vertically swinging repeatedly at a constant cycle. In addition, since the motor M1 is rotatable in the forward and reverse directions, the camera 5 can be reciprocated vertically swinging even if the rotation direction is switched at a constant cycle.

Next, when the motor M2 of the drive base 3 is operated to rotate the output shaft S2, the camera 5 directly connected to the output shaft S2 slowly rotates on the drive base 3.
Since the motor M2 is a servo motor that can rotate forward and backward,
The camera 5 can be swung in a predetermined range. By operating the motors M1 and M2 in this manner, the camera 5 can be freely controlled in both vertical and horizontal directions. The motors M1 and M2 are
Control may be performed by any of a wired method and a wireless method.

Although the present invention has been described with reference to the embodiment,
Of course, the present invention is not limited to the above embodiment. For example, although the drive base 3 is formed in a box shape in the embodiment, two motors M1 and M2 are connected to their output shafts S1 and S2.
May be in any form as long as they can be combined in a state of being orthogonal. Further, in the embodiment, the bracket 2 is fixed to the wall surface W, but may be fixed to the ceiling of the building. In that case, camera 5
Can monitor a range of 360 degrees. In the embodiment, the swing mechanism 4 includes the crank member 4b and the sliding guide arm 4a.
However, other mechanisms can be applied.

[0012]

According to the present invention, there is provided an electric camera platform for a camera in which two motors are integrated with a drive base, and one of the motors swings the drive base itself to vertically swing the camera, while the other is used to swing the camera vertically. Since the camera is directly rotated by the motor described above, the electric components do not protrude from the bracket, and the size can be made extremely compact as compared with the related art by combining with a small camera. Further, since the structure is simple, there is an excellent effect that an electric camera platform can be provided at a low price.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a camera and an electric camera platform.

FIG. 2 is a longitudinal sectional side view showing a use state.

FIG. 3 is a sectional view taken along line YY of FIG. 2;

FIG. 4 is a vertical sectional side view of a use state showing a vertical swing state of the camera.

FIG. 5 is a front view of a use state showing a conventional motorized camera platform.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Electric pan head for camera 2 ... Bracket 3 ... Drive base 4 ... Swing mechanism 5 ... Camera M1 ... Motor S1 ... Output shaft of motor M1 M2 ... Motor S2 ... Output shaft of motor M2 W ... Wall surface

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04N 5/222 F16M 11/12 F16M 13/02

Claims (1)

(57) [Claims] 1. A bracket mounted on a wall or ceiling of a building, a drive base pivotally mounted on the bracket and integrally incorporating two motors, and one motor of the drive base A swing mechanism interposed between the output shaft of the drive base and the bracket, and configured to convert the rotational movement of the output shaft into a vertical swing movement of the drive base, wherein the camera is mounted on the output shaft of the other motor of the drive base. An electric camera platform for a camera, wherein