JPH0419897Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a viewfinder device in a video camera for broadcasting and the like.

[Conventional technology]

2. Description of the Related Art Conventionally, a video camera for broadcasting or the like is configured such that a viewfinder device 2 for monitoring a photographed image is attached to the upper part of a video camera body 1, as shown in FIG.

This viewfinder device 2 has a casing attached to cover a main body such as a circuit device mounted on a chassis or the like to protect internal equipment.

[Problem that the invention attempts to solve]

Therefore, in order to inspect or repair the internal circuitry of the viewfinder device, it is first necessary to remove the casing and place it somewhere else before starting work. Moreover, video cameras are usually used in studios, and in this case the video camera itself is placed in a dark place with no light, so inspections and repairs in this case are carried out with one hand held up by a flashlight. It has the disadvantage of being unavoidable and incurring disadvantages and inconveniences.

In view of the above-mentioned points, the present invention is to make the casing of the viewfinder device openable and closable so that the internal circuit device can be inspected and repaired, and to provide lighting means to illuminate the internal circuit device to facilitate inspection and repair work. With the goal.

[Means for solving problems]

The viewfinder device of the present invention is configured such that the lid above the housing can be fixed in a flipped-up state using a hinge mechanism, and is attached to the lamp part of the tally lamp, It is characterized by the provision of a reflecting means that can selectively illuminate the circuit devices inside the main body and on the back of the lid.

[Effect]

With this configuration, the lid of the viewfinder device can be flipped up and the entire internal circuit device can be opened and viewed immediately, and tally lamps can be used to display the circuitry provided with the lid and the inside of the casing. Since light can be directed to the required locations, this function contributes to simplifying inspection and repair work.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the view finder device of the present invention will be described below with reference to FIGS. 1 to 3. FIG. 1 is a side view of the viewfinder device of this example, and a lid portion 12 of a casing 11 is provided on the top of the viewfinder device main body 2 so that it can be opened and closed by a hinge support 16. As shown in FIG.

The rear end of this lid portion 12 is formed into a hook shape,
A circuit board 13 is installed on its inner surface.

Further, a cathode ray tube 14, coil parts 15, etc. are installed in the viewfinder main body 2.

The end of one support rod 16a of the hinge support rod 16, which is configured to be foldable in two by pivoting the middle of a pair of support rods 16a and 16b with a hinge 16c, is attached to the rear end of the viewfinder device main body 2. The other support rod 16b of the hinge support rod 16 has an end pivoted to a shaft support metal fitting 18 provided at a predetermined position behind the lid portion 12.

Then, one support rod 16a of the hinge support rod 16 is prevented from rotating in the clockwise direction in the figure from this position so that the lid portion 12 is held in the open state as shown by the solid line in FIG. A means (not shown) is provided to support it.

In addition, the hinge support rod 16 is in a linearly extended position as shown in the figure, and one support rod 16a is connected to the other support rod 16a.
A means is provided to prevent 6b from rotating clockwise. That is, the lower ends of the hinge 16c portions of both support rods 16a and 16b are brought into contact with each other so that they are held in a straight line.

Further, a locking means (not shown) is provided at the shaft support fitting 18 portion of the lid portion 12 on the other support rod 16b of the hinge support rod 16, so that the lid portion 18 is provided at the shaft support fitting 18.
prevent it from rotating further clockwise.

Alternatively, instead of providing a locking means on the pivot bracket 18, one end 12a of the lid 12 may be in contact with one of the support rods 16a to prevent the lid 12 from rotating further clockwise from the illustrated state. Configure.

With this configuration, the lid portion 12 can be held in the open state where the entire internal circuit device can be immediately seen by opening the entire internal circuit device.

Further, when closing the lid part 12, the lid part 12 is rotated by bending the hinge support rod 16, and the lid part 12 is closed as shown by the dashed line in FIG.

Further, as shown in FIG. 4, the viewfinder device 2 is provided with a tally lamp section 20 for informing the person to be photographed that the video camera 1 is in the process of photographing.

In the device of this example, as shown in FIG.
In contrast to 2, the reflection slope 23 of this lamp 22 is configured to be changeable by selecting the direction.

That is, the reflective slope 23 is formed by the main plate 23 having an L-shaped cross section.
a and an end plate 23b that closes both ends thereof. Each corner of the main plate 23a and the end plate 23b is cut out into a triangular shape, and a triangular plate 23c is provided so as to close this.
to form. Further, the reflective surface of the reflective slope 23 is finished to have a blank surface so that the light is diffusely reflected so that the filament cannot be seen, and a pair of lamp insertion parts 24 are provided on the bottom surface of the main plate 23a.

This lamp insertion part 24 is constructed by punching round holes at positions corresponding to the pair of lamps 22 and covering the periphery of the round holes with a rubber ring. The reflective slope 23 is configured so that the pair of lamp insertion parts 24 are fitted into the respective socket parts 25 of the pair of lamps 22 to be attached.

In this way, in this example, lamp 2 of the tally lamp
2 is also used as an inspection light inside the device, so the configuration can be simplified compared to the case where a separate inspection light is installed.

Incidentally, a number plate 27 with a number written thereon can be attached to the outer surface of the translucent cover 26 of the tally lamp section 20, as shown in FIG.

That is, a rectangular groove surface 26a with a downward slope is formed at a predetermined position of the cover 26, and engaging portions 28 are formed at three corners of the groove surface 26a, each of which has a U-shaped cross section and a quarter arc shape with a large radius. A hook portion 29 is provided by smoothly cutting out the vicinity of one remaining corner from the surface of the cover 26 to the groove surface 26a so that a hook can be hooked thereon.

In addition, the number plate 27 is made of translucent and flexible vinyl chloride or the like to form a rectangular plate that is one size smaller than the groove surface 26a of the cover 26, and the corners of the square are made smaller than the arc of the engaging part 28 by a required amount. Form into an arc shape with a radius.

Then, the number plate 27 is bent to form the groove surface 26a.
The three corners of the number plate 27 fit into the groove surface 26.
It is attached so that it is supported by the three engaging parts 28 of (a).

Furthermore, when removing the number plate 27, the number plate 27 is removed by hooking a nail onto the corner of the number plate 27 using the hanging claw part 29 of the groove surface 26a and bending it. This makes it easy to change the number plate 27. It can be done.

Next, how to use the viewfinder device of this example configured as described above will be explained.

To inspect and repair the inside of this viewfinder device, first, the lid portion 12, which is closed in the position shown by the dashed line in FIG. 1, is flipped up to the position shown by the solid line.

At this time, if the surroundings are dark, the tally lamp 22, which is powered separately from the viewfinder device in the video camera body, is switched on and turned on. Then, since the reflection slope 23 reflects the light backward as shown by arrow A, the light from the lamp 22 illuminates the circuit board 13 of the lid part 12, which facilitates inspection and repair of this part.

If you wish to inspect or repair the inside of the viewfinder main body 2, pull out the reflective slope 23 from the socket part 25 of the lamp 22, turn it to the opposite side as shown by arrow C, fit it into the socket part 25 again, and then When 22 is turned on, the reflective slope 23 reflects the light forward as shown by arrow B, which illuminates the circuitry inside the device body 2, making it convenient for inspection and repair. It is.

Furthermore, after inspection and repair, the lid 12 only needs to be rotated, closed, and fixed, and opening and closing operations can be performed more quickly and easily than when the lid 12 is constructed as a separate body.

[Effect of idea]

As described in detail above, according to the viewfinder device of the present invention, the lid of the device body can be opened to a position where internal inspection and repair can be easily performed, and the inspection area can be easily removed by simply selectively replacing the reflector of the lamp. It is convenient for inspection and repair work, and has the effect of making the work easier.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an example of the viewfinder device of the present invention, FIG. 2 is an exploded perspective view of its main parts,
FIG. 3 is a front view of the main parts thereof, and FIG. 4 is a perspective view of a video camera having a conventional viewfinder device. 2 is the viewfinder device main body, 12 is the lid part,
16... Hinge support rod, 20 is tally lamp part, 2
3 is a reflecting plate.

Claims (1)

[Scope of utility model registration request] The lid at the top of the housing is attached using a hinge mechanism so that it can be held in a flipped-up position for inspection and repair of internal devices, and is attached to the lamp part of the tally lamp, so that it can be attached to the inside of the housing body and the lid. A viewfinder device characterized by being provided with a reflection means capable of selectively irradiating a circuit device on the back side.