JPH0526399Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a camera horizontal positioning device suitable for use in a camera pan head.

[Summary of the idea]

The present invention relates to a camera horizontal positioning device suitable for use in a camera pan head, and includes a camera fixing screw loosely fitted in the center of a camera mount base plate, and a predetermined position centered on a predetermined position of the camera mount base board. One column is placed in a position where the diameter circle is divided into three equal parts, and is pressed through a connecting plate so as to make spherical contact with the camera mount board, and a column with screws to which two adjustment knobs are fixed. and a tripod base to which the camera is attached, one support is fixed to the tripod base, and a threaded post with two adjustment knobs fixed is screwed to the tripod base, and the screw is inserted through the through hole drilled in the tripod base. By making the tip of the camera fixing screw protrude above the camera platform, horizontal positioning of the camera can be quickly and easily adjusted.

[Conventional technology]

4 and 5 have been proposed as conventional mounts on which a detection camera of an infrared temperature measuring device for measuring the surface temperature distribution of a human body lying on a bed is disposed.

In Figures 4 and 5, the pedestal 1 is attached to the bottom of the base 2.
A caster 3 with two stoppers is attached, and a support 4 is erected approximately at the center of the base 2, and a sliding metal fitting 5 is slidably disposed on this support.
A suspension wire 7 is fixed to one end 6 of the sliding metal fitting 5, and this wire 7 is suspended inside the hollow pillar 4 through a pulley 8 provided at the tip of the pillar 4. A weight 1 is used to balance the metal fitting 5 and the camera 9 provided on this sliding metal fitting.
0 is fixed, making it a suspension mechanism type. A horizontal arm 11 is disposed on the sliding fitting 5 so as to be slidable in a direction perpendicular to the support column 4.
L-shaped camera mount 1 attached to one end of
A camera 9 is attached on 2. A vertically movable fixing handle 13 for locking the sliding bracket 5 in a predetermined position on the column 4 is provided on the sliding bracket 5, and a horizontally movable fixing handle 14 for locking the horizontal arm 11 in a predetermined position is also provided on the sliding bracket 5. It is provided on the moving metal fitting 5.

Reference numeral 15 denotes an external mirror, which is configured to refract the body temperature (infrared rays) of a person sleeping below the mirror 15 in a substantially right-angled direction and image it with the camera 9.

An enlarged view of part A of the camera mounting base 12 in FIG. 5 is shown in FIGS. 6 and 7. FIG. 6 is a plan view of the pan head 16 on which the camera 9 is placed.
is formed into a substantially circular shape, and a through hole 17 is bored in the center thereof, so that the distal end screw portion 20 of the camera fixing screw 18 is inserted into the through hole 17 and projects. The camera fixing screw 18 consists of a knurled knob 21, a shaft-shaped intermediate portion 19, and a screw portion 20 formed at the tip of the intermediate portion 19, and is attached to the center of the camera mounting board 22 formed in a substantially circular shape. The intermediate part 19 of the camera fixing screw 18 is inserted into the drilled through hole 23, and the collar ring 24 is fixed at a predetermined position of the intermediate part 19 to prevent the camera fixing screw from falling off from the camera mounting base board 22. A circle of a predetermined size is drawn from the center of the through holes 17 and 23 at the center of the camera mount base 16 and the camera mount base plate 22, and through holes 25 and 26 are formed at positions that divide this circle into two. ，
27 are inserted and fixed into the through holes 26, 26 of the camera mount base plate 22 with nuts 28, 28 and 29, 29, and the tips of the screws 27, 27 are inserted and fixed into the through holes 25 of the camera platform base 16. Furthermore, camera mounting base board 2
A tap hole 30 is formed at a position where a circle of a predetermined radius drawn from the center of the through hole 23 is divided into four equal parts, and the screws 31, 31... are screwed into the tap holes 30, 30.... Place the tips of the screws 31, 31... in contact with the bottom of the pan head 16, and tighten the screws 3 with the nut 33.
1, 31... are fixed to the camera mounting base board 22.

With the above-described configuration, the camera 9 is placed on the camera platform 16, and the threaded portion 20 of the camera fixing screw 18 is screwed into the female screw provided on the bottom of the camera 9.
Fix it on top. In order to maintain the level in this state, for example, the tips of the screws 31, 31, etc. should be spaced apart so that they do not come into contact with the bottom surface of the pan head seat 16, and then the screws 2
Loosen the nuts 28 of 7 and 27 and move the pan pedestal 16 with the arrow B.
direction, and further rotate the screws 31, 31... in the right direction, the tips of the screws 31, 31... will come into contact with the bottom of the pan head 16, and the pan head 16 will move in the direction of the arrow c, so these slight After the horizontal positioning is achieved by repeating the adjustment, the nuts 29 and 30 are tightened and fixed.

[The problem that the idea attempts to solve]

According to the camera mount shown in Figures 6 and 7 above, the screws 27, 27 and the fine adjustment screw 31,
It is necessary to horizontally adjust the pan head base 16 while the 31... are stretched out from each other (horizontal adjustment is performed by monitoring the camera output status), so it takes a long time to perform horizontal positioning. However, it was cumbersome as it required a screwdriver and nut turning. Particularly when measuring the surface temperature distribution of a human body using the camera 9, if the camera 9 is not mounted horizontally on the pan head 16, the problem arises that the image is distorted and accurate temperature measurement cannot be performed.

The present invention was developed in view of the above-mentioned drawbacks, and its purpose is to level the camera 9 extremely easily and quickly, so that the surface temperature distribution of the human body can be measured without distortion as a thermal image. This allows accurate data to be obtained quickly.

[Means to solve the problem]

One example of the camera horizontal positioning device of the present invention is shown in FIGS. 1 and 2, which includes a camera fixing screw 18 loosely fitted into the center of a camera mounting board 22, One pillar 36 is arranged so as to be pressed via a connecting plate 35 so as to make spherical contact with the camera mounting base board 22 at a position obtained by dividing a circle with a predetermined diameter centered on a predetermined position of the board 22 into thirds. and,
Screwed supports 38, 38 to which two adjustment knobs 37, 37 are fixed, and a camera platform 16 to which the camera 9 is attached.
One support 36 is fixed to the tripod head 16, and screwed columns 38, 38 to which two adjustment knobs 37, 37 are fixed are screwed to the tripod head 16, and are bored in the tripod head 16. The tip of the camera fixing screw 18 is made to protrude above the pan head seat 16 through the through hole 17.

[Effect]

The camera horizontal positioning device of the present invention allows the camera head 16 to be easily adjusted horizontally by simply rotating the two knobs 37, and after the horizontal positioning, it is strongly clamped by the connecting plate 35 and the presser spring 39. Therefore, there is no need to provide a particular locking mechanism.

[Embodiment] Hereinafter, an embodiment of the camera horizontal positioning device of the present invention will be described with reference to FIGS. 1 and 2.

Portions in FIGS. 1 and 2 that correspond to those in the conventional FIGS. 4 to 7 are designated by the same reference numerals, and redundant explanation will be omitted.

Figure 1 shows an enlarged view of section A in Figure 5.
The camera mounting base board 22 is approximately disk-shaped and has a countersunk hole 40 on the top surface and a concave cross section, and a collar 42 is inserted into a through hole 43 bored in the center and fixed by brazing or the like. A spherical receiver 44 is placed at a position that divides the circumference drawn by a predetermined radius from the center of the camera mount board 22 into three equal parts.
is press-fitted, and the two threaded columns 38, 38 (second
(see figure) and one pillar 36 are installed on the spherical support 44 in a universal joint manner. For this purpose, the lower end of the threaded support 38 and the support 36 has a ball portion 45.
A male screw 46 is attached to the upper end of the threaded support 38.
is formed. Post 36 or threaded post 38
The ball portion 45 at the lower end may be constructed integrally with the support 36, but the male screw installed in the ball portion 45 and the support 36 may be integrated.
Alternatively, it may be screwed together with a female screw formed on the bottom surface of the threaded support column 38. The connecting plate 35 is a circular plate having a diameter slightly smaller than the diameter of the counterbore hole 40 of the camera mounting base board 22, and a through hole 47 larger than the outer diameter of the collar 42 is bored in the center. Through-holes 48, 48, 48 are drilled at three equal positions on the circumference where the collar 42, the strut 36, and the threaded strut 38 are installed. , 48, 48 are inserted. Next, the spherical surface 49 and the knob 37 with the spherical surface 49 are fixed to the strut 36 and the threaded struts 38, 38 with a set screw. A flange 41 is fixed to the upper surface of the collar 42 via a presser spring 39 made of a plate spring, and a connecting plate 35 presses and holds the column 36 and the threaded column 38.

The camera head base 16 is also formed in a substantially disk shape, and has a through hole 1 in the center through which the screw 20 of the camera fixing screw 18 is inserted.
7 is bored and the struts 36 and the threaded struts 38, 38 are arranged, the struts 36 are placed at three equal positions on the same circumference.
are fixed, and the male screws 4 of the threaded supports 38, 38
6 and 46 are screwed into female screws 50 and 50.

The middle part 19 of the camera fixing screw 18 has a collar 42.
The collar ring 24 is slidably inserted into the inner diameter of the collar 42, and the collar ring 24 is locked to the intermediate portion 19 so as not to separate from the collar 42.

As mentioned above, the tripod base 16 is supported at three points to maintain its horizontal position, and has a threaded support 38 with a knob 37,
You can easily level it by adjusting only two parts of 38. In addition, the spherical parts 45, 45, 45 are integrated with the connecting plate 35 so as to form a universal joint with the spherical receivers 44, 44, 44, and are pressed by the plate spring 39, so that the inclination of the column 36 and the threaded column 48 is reduced. The angles α and β can also be easily adjusted. Further, as for the fixing method after the horizontal positioning, in this example, the horizontal position can be maintained even without providing a particular locking mechanism.
That is, the spherical portion 45 and the spherical receiver 44 are connected to the leaf spring 39 of the connecting plate 35 and the spherical surface 49 attached to the knob 37.
Since it is strongly clamped by the knob 9, the tripod head can remain horizontal unless the knob 37 is turned.

FIG. 3 shows another embodiment of the horizontal positioning device of the present invention, and parts corresponding to those in FIG. 1 are given the same reference numerals and redundant explanation will be omitted.

In the case of FIG. 3, detents 51, 51 are provided at two locations on the outer periphery of the camera mount base plate 22 (four locations may be provided if necessary) to prevent the connecting plate 35 from rotating.
The connecting plate 35 is prevented from rotating around the collar 42. Furthermore, the spring that presses the connecting plate 35 is a coil spring 39 to increase the pressing force. In addition, the spherical surface 49 and the spherical portion 45 of the threaded support 38 are constructed separately, and are rotatable like a universal joint with the spherical supports 52 disposed on the upper and lower surfaces of the connecting plate 35. The portion 45 is formed into one piece.

According to such a configuration, even if the camera 9 is placed on the pan head seat 16, the camera will not rotate.

Incidentally, the present invention is not limited to the embodiments described above, and various modifications can be made without departing from the gist of the present invention.

[Effect of idea]

According to the camera horizontal positioning device of the present invention, it is possible to easily level the camera by adjusting two knobs without using a screwdriver or turning a nut. It is possible to accurately obtain distortion-free thermal images when measuring temperature distribution.

[Brief explanation of drawings]

Figure 1 is a side sectional view showing an embodiment of the camera horizontal positioning device of the present invention, Figure 2 is a plan view of Figure 1 with the camera head removed, and Figure 3 is a horizontal view of the camera of the present invention. 4 and 5 are front and side views of a conventional mount, FIG. 6 is a plan view of a conventional camera mount, and FIG. 7 is a sectional side view showing another embodiment of the positioning device. It is a sectional view taken along the line AA' in the figure. 1 is a mount, 2 is a base, 9 is a camera, 12 is a camera mount, 16 is a camera platform, 18 is a camera fixing screw, 22 is a camera mount board, 35 is a connecting plate, 3
6 is a column, 38 is a column with a screw, and 42 is a collar.

Claims (1)

[Scope of Claim for Utility Model Registration] A camera fixing screw loosely fitted into the center of a camera mount board, and a camera mount located at a position where a circle with a predetermined diameter centered at a predetermined position of the camera mount board is divided into thirds. It has one pillar arranged so as to be pressed through a connecting plate so as to make spherical contact with the circuit board, a threaded pillar to which two adjustment knobs are fixed, and a tripod base to which a camera is attached. Fix the above-mentioned one support to the camera platform, screw the threaded column with the two adjustment knobs fixed to the camera platform, and insert the tip of the camera fixing screw onto the camera platform through the through hole drilled in the camera platform. A horizontal positioning device for a camera, characterized in that it is made to protrude.