JPS5942329B2 - display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display device having a display device unit (CRT unit).

Conventionally, there have been devices of this type as shown in FIGS. 1 and 2.

In the figure, 1 is a display device housing, 2 is a CRT unit, and 3
is a slide guide that supports CRT unit 2, and 4 is a CR
This is a handle for pulling out the T unit 2. Next, the operation will be explained.

To pull out the CRT unit 2 from the display device housing 1,
When the handle 4 is grabbed and pulled diagonally upward, the CRT unit 2 is pulled forward by the slide guide 3 and held by a stopper provided on the rail. FIG. 2 shows a state in which the CRT unit 2 is pulled out from the display device housing 1. Since the conventional display device pull-out mechanism is constructed as described above, it has the following drawbacks.

(1) It is not possible to stop at an arbitrary position. (2)
In order to pull it diagonally upward, you have to apply force in an unreasonable position. (3) If you let go of the device during operation, it may fall, which is dangerous.

This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and an object of the present invention is to provide a display device in which a CRT unit can be easily and reliably inserted and removed by providing an electric drive mechanism in the casing. It is said that

An embodiment of the present invention will be described below with reference to the drawings.

3 to 5, numerals 1 to 3 are the same as in FIGS. 1 and 2.

5 is a rack gear provided on the CRT unit 2; 6 is a drive device having a motor provided in the display device housing 1; 7 is a drive gear that is integrated with the drive device 6 and meshes with the rack gear 5; 8 is a front panel. A drive switch 9 is attached to the drive switch 8 to control the drive device. Reference numeral 9 is a handle for holding the drive switch 8 when operating it.

Next, the operation of this embodiment will be explained.

To pull out the CRT unit 2 from the housing 1, place your hand on the handle 9 and keep pressing the pull-out side of the drive switch 8, the drive device 6 will operate and the drive gear □ will rotate in the direction to pull up the rack gear 5. Therefore, the CRT unit 2 is pulled out to the front. Next, when the CRT unit 2 that has been pulled out is to be stored in the housing 1, by continuing to press the storage side of the drive switch 8, the drive device 6 operates in the opposite manner to the above-mentioned operation when the CRT unit 2 is being pulled out and can be stored.

Further, the CRT unit 2 is provided with a limit switch (not shown) for pulling out and storing, and the circuit of the driving device 6 is closed at the same time as the pulling and storing operations are completed. It is safe to keep pressing switch 8.

Further, when stopping at an arbitrary position during withdrawal or storage, or suddenly stopping for safety reasons, by releasing the drive switch 8, a braking mechanism built into the drive device 6 is activated and the drive device 6 immediately stops at that position. The drive device 6 is also equipped with a manual mechanism in case of circuit failure or power outage.
In the above-mentioned embodiment, an electric drive device using gears is used, but an electric drive device using a belt pulley, a chain wheel, etc. may be used, and the same effects as in the above-mentioned embodiment can be obtained.

As described above, according to this invention, by making the mechanism for pulling out the CRT unit from the case electrically driven, the operation of putting in and taking out the CRT unit can be done safely, easily, and reliably, and it can also be stopped at any position. I can do it.

[Brief explanation of the drawing]

FIG. 1 is a right side view of a display device with a conventional pull-out mechanism, FIG. 2 is a configuration diagram showing the pull-out state in FIG. 1, and FIG. 3 is a display device with an electric drive device according to an embodiment of the present invention. FIG. 4 is a configuration diagram showing the drawn-out state in FIG. 3, and FIG. 5 is a plan configuration diagram seen from direction A in FIG. 4. In the figure, 1 is a display device housing, 2 is a CRT unit, and 3 is a display device housing.
is a slide guide, 4 is a handle, 5 is a rack gear, 6 is a drive device, 7 is a drive gear, 8 is a drive switch, and 9 is a handle.

Claims (1)

[Claims] 1. A display device that includes a rail mechanism that guides a cathode ray tube unit when it is inserted into and taken out of a display device housing, and an electric mechanism that automatically performs the insertion and removal.