JPH10169892A - Pan tilter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a pan tilter of simple structure, which can be used in any place and can be installed in any state. SOLUTION: This pan tilter is provided with a transparent window 2a in at least a part, a camera case 2 to contain a camera aiming at this window 2a, a pair of tilt shafts 2b and a pair of cam shaft 2c formed opposing to each other to support this case 2 outside the camera case 2, a tilt shaft support table 3 having a hole 3a to support a pair of the tilt shaft 2b, a cam case 4, which contains this support table 3 supporting the camera case 2, wherein long holes to be locked with the cam shafts 2c are formed slantingly, a support table rotating shaft, one end of which is fixed to a position near the center of the bottom of the support table 3 and a clutch 9, which rotate this shaft and the cam case 4 simultaneously and at the same angle speed or separately.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pantilter capable of performing a panning (horizontal) operation and a tilting (back and forth) operation in a free direction by, for example, remotely controlling a video camera or the like.

[0001]

2. Description of the Related Art Hitherto, a device capable of performing a panning operation and a tilting operation in a free direction by remote control of a video camera, that is, a so-called patilter has been proposed (for example, Japanese Patent Application Laid-Open No. 2-72297).

[0002]

However, in the pantilter disclosed in the above-mentioned prior art, the camera cable for wiring connection is directly connected to the rotating unit of the pantilter, so that the camera mounted on the unit is mounted on the pantilter. There was a problem that when the camera turned, the cable was in the way and the camera could not be turned freely. In addition, since the conventional pan tail turret has a configuration in which rollers are rolled along a cam surface formed in a slope, there is a restriction that the cam surface must be directed upward, and the device cannot be used by hanging the device. In addition, there is a problem that it is not suitable for outdoor use.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has at least a part thereof having a transparent window and a camera case for housing a camera having a lens directed to the window. A pair of tilt shafts and a pair of cam shafts formed on the outside of the camera case so as to be able to support the case, a tilt shaft support having a pair of support holes for the tilt shaft, and the support A cam case having a long hole obliquely formed to accommodate the camera case and to be engaged with the cam shaft, a support base rotation shaft having one end fixed to a substantially center of a bottom of the support base, A clutch for rotating the rotating shaft and the cam case simultaneously and at the same angular velocity or separately is provided.

[0004]

FIG. 1 shows a pantilter showing an example of an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a video camera, which is fixed in a spherical camera case 2. The camera case 2 has a window 2 made of a transparent material on the front.
a is formed and fixed so that the lens of the camera 1 faces the window. A tilt shaft 2b and a cam shaft 2c formed longer than the tilt shaft 2b are fixed to the outer wall of the camera case 2 so as to be able to support the case and project horizontally. A cable hole (not shown) for transmitting and receiving signals to and from the video camera 1 is provided near the center of the bottom of the camera case 2, the cable 1a is attached in a watertight manner, and the camera case 2 is formed as a whole in a watertight manner. ing.

[0005] Reference numeral 3 denotes a tilt shaft support base, which is formed by making both ends of a long plate material having a semicircular shape at both ends and having a hole 3b at the center by 90 degrees in the same direction.
It is bent to form a U-shape, and a pair of support holes 3a are formed near the upper end of the bent portion. The tilt shaft 2 of the camera case 2 is provided in the support hole 3a.
b is inserted and rotatably supported (in this case, the inner width d of the tilt support base 3 and the outer diameter of the camera case 2 are formed to such a degree that there is no play, and the tilt shaft 2b is attached to and detached from the camera case 2). Mounted as possible).

[0006] Reference numeral 3c denotes a pipe having a hollow hole, one end of which is fixed to the hole 3b provided on the bottom side of the support base 3 so that the outer periphery thereof matches. Then, the cable 1a passes through the inside of the pipe 3c from the lower part of the tilt support base 3, and is drawn out of a hole 3d provided near the other end of the pipe. Drawn out to the outside.

Reference numeral 4 denotes a cam case, which is obtained by removing a cylindrical body with a predetermined width and depth in the longitudinal direction (from the upper part to the lower part in the figure). It is formed as follows. FIG. 2 is a perspective view of the cam case 4. A bottom plate 5 having a hole 5a is fixed to one end of the cam case 4, and one end of a first cylindrical body 6 having an outer diameter slightly smaller than the hole diameter is fixed to the hole 5a. It is inserted and fixed watertight.

FIG. 3 is a sectional view taken along the line AA shown in FIG. 1 in which the camera case 2 supported by the tilt shaft support 3 is also accommodated in the cam case 4, and the hole 3 a of the tilt shaft support 3 is Shaft center, cam hole 4b and camera case window 2
The positional relationship of a is shown. As shown in the figure, the tilt shaft and the cam shaft 2b are formed at positions shifted by 30 to 40 degrees.

FIG. 4 is a sectional view showing an assembled state of the lower part of FIG. In the figure, reference numeral 7 denotes a second cylindrical body having an upper lid 7a at one end, and a hole 7b is formed at the center of the upper lid 7a. The outer periphery of the bearing 8 is fitted into the inner periphery of the hole 7 b, one end of the first cylindrical body 6 is fitted into the inner periphery of the bearing 8, and the other end is extended upward to fit the bottom plate 5 of the cam case 4. Fixed. Reference numeral 9 denotes a clutch having an input shaft 9a and an output shaft 9b. An end of the input shaft 9b is connected to a lower end of the pipe 3c, and an end of the output shaft 9a is connected to a rotation shaft of the drive motor 10. Reference numeral 12 denotes a base for fixing a lower portion of the second cylindrical body 7.

Although not shown in FIG.
A gear or a friction plate or the like is fixed to the tips (in the clutch) of the a and 9b, and the gear or the friction plate of this clutch is intermittently operated by an external command. Reference numeral 11 denotes a rotating plate, the rotating shaft of the drive motor 10 penetrating through the center, and is fixed. The outer periphery of the rotating plate 11 is fixed to the first cylindrical body 6. 7b is a cable hole formed in the second cylindrical body, 11a
Is a cable hole formed in the rotating plate 11, and the cable 1a is drawn out through these holes 7b and 11a.

In the above configuration, the tilt shaft 2b of the camera case 2 is inserted into the support 3a of the tilt shaft support 3, and is housed in the cam case 4 together with the support 3.
At this time, the positional relationship between the tilt shaft 2b and the center of the cam hole 4b is as shown in FIG. When the clutch 9 is engaged, the rotation of the drive motor 10 is transmitted to the rotating plate 11 to rotate the first cylinder 6. At the same time pipe 3c
To rotate the tilt shaft support. Therefore, the first cylinder 6 and the pipe 3c rotate at the same angular velocity, and the camera case 2 rotates in the horizontal direction.

Next, when the clutch 9 is released, the pipe 3
c is not transmitted, and the rotation of the motor 10 is
1 is transmitted to only the first cylinder 6. Therefore, since the cam shaft 2c of the camera case moves obliquely along the cam hole 4b formed in the cam case 4, the camera case 2
Swings up and down around the tilt shaft 2b.

According to the above configuration, the pantilter operation of the camera can be realized with a relatively simple configuration by controlling the rotation of the drive motor 10 and the on / off of the clutch 9. In addition, since the cable 1a for transmitting and receiving signals to and from the camera 1 is taken out from near the center of the bottom of the camera case 2, the cable 1a does not become an obstacle when the camera case 2 changes its direction. Further, since the camera 1 is housed in the case 2 having a watertight structure, there is no problem in outdoor use, and there is no restriction on the position of the pantilter operation. Therefore, the camera 1 can be used, for example, suspended in an oblique direction.

[0014]

As described above, according to the present invention,
The camera is housed in a camera case with a watertight structure, and the pantilter operation is performed by a single drive motor by connecting and disconnecting the clutch, thereby simplifying the configuration. In addition, since the operation of the pantilter is not restricted in position, it is possible to realize a pantilter that is not restricted in the place of use or the mounting state.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a pantilter showing an example of an embodiment of the present invention.

FIG. 2 is a perspective view of a cam case.

FIG. 3 is a cross-sectional view showing a positional relationship between an axis of the tilt shaft support, a cam hole, and a window of the camera case in a state where the tilt shaft support and the camera case are housed in a cam case.

FIG. 4 is a sectional view showing an assembled state of a lower part of FIG. 1;

[Explanation of symbols]

 Reference Signs List 1 camera 2 camera case 3 tilt shaft support 3c pipe 4 cam case 4b cam hole 5 bottom plate 6 first cylinder 7 second cylinder 8 bearing 9 clutch 10 drive motor 11 rotary plate 12 base

Claims (2)

[Claims] 1. A camera case which has a transparent window at least in part and accommodates a camera having a lens directed to the window, and a pair of a pair of outer sides formed outside the camera case so as to support the case. A tilt shaft and a pair of cam shafts, a tilt shaft support having a support hole for the pair of tilt shafts, and a long hole which is accommodated in a state where the support is supported by the camera case and is engaged with the cam shaft. A cam case formed in the same direction, a support base rotating shaft having one end fixed to substantially the center of the bottom of the support base, and a clutch for simultaneously rotating the rotating shaft and the cam case at the same angular velocity, or separately rotating the clutch. A pantilter characterized by being provided. 2. A pantilter according to claim 1, wherein a cable for transmitting and receiving signals to and from a camera is penetrated in a hole provided near the center of the bottom of the camera case in a watertight manner. [0000]