JPH0541973Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a suspension display device for a railroad crossing safety device.

[Conventional technology]

The suspension display device is attached to the electrical equipment of the level crossing safety device, and while the electrical equipment is operating normally,
For example, by displaying a message such as "temporarily stop," and when an electrical device stops working due to a power outage or other cause, the "temporarily stop" display is automatically switched to "stop using," and when power transmission starts, the electrical equipment This function has the function of returning the display to "temporarily stop" when the system returns to normal. This device is controlled by the presence or absence of current flowing to electrical equipment, and its main purpose is to urgently notify passersby of the occurrence of an abnormal situation due to the stoppage of electrical equipment. Display devices for such purposes are of course not limited to railroad crossing safety devices, but can also be used in monitoring devices for equipment such as factories, traffic signs, and the like.

[Problem that the invention attempts to solve]

By the way, in the case of a level crossing safety device, the "temporarily stop" display stops only to alert passersby, but while the "stop" display is displayed, the level crossing, crossing gate, and level crossing warning are disabled. This sign indicates that the aircraft is inoperable and warns of the occurrence of an extremely dangerous situation that could lead to a level crossing accident.

The conventional display switching method mainly involves displaying a message on a display board with the words ``temporarily suspended'' or ``suspended'';
This is done by concealment, and it is of course possible to visually recognize the display contents, but since the display surfaces of the display boards that display both displays are basically the same size, it is possible to inadvertently There is a danger of overlooking the "Stop" sign.

The object of the present invention is to solve the above-mentioned problems, to provide a compact display switching device that enlarges the display surface of a display notifying the occurrence of a particularly dangerous situation.

[Means for solving problems]

In order to achieve the above object, the suspension display device for a level crossing safety device according to the present invention includes a casing 2;
Panel frames 6, 6, display boards 7a, 7b, stoppers 16a, 16b, return spring 10, motor 1
1, the housing 2 is a hollow box having a display opening 1 on one vertical surface, and a shaft 4, the shaft 4 having both ends. The panel frames 6, 6 support the display board, and are connected to each other and rotatably mounted on both ends of the shaft 4. The board is a pair of a first display board 7a and a second display board 7b, and displays by selectively exposing one of the boards in the opening 1 of the housing 2 by rotating forward and backward. Both display boards 7a and 7b are mounted symmetrically and parallel to the panel frames 6 and 6 across the axis of the shaft 4, the first display board 7a is for normal display, and the second display board 7b is It is for displaying an abnormality and has an additional plate 17, which is foldably connected to one end of the second display plate 7b and hangs down from the lower edge of the second display plate 7b to display the display surface for abnormality display. When concealed, it is bent at right angles and stored on the first display board 7a, and the stoppers 16a, 16b are attached to each display board 7a, 7.
The rotation angle of the panel frames 6, 6 is restricted to a range of 180° in accordance with the display position of the second display plate 7b. The motor 11 applies rotational torque to the panel frames 6, 6 in the direction of displaying the first display plate 7a against the spring force of the return spring 10.

[Effect]

The first display board displays "temporarily stop" as a normal display, and the second display board displays "stop use" as an abnormal display. Under normal conditions, the rotating torque of the electric motor acts on the panel frame, and the panel frame rotates in the forward direction against the torque of the return spring. The display is shown. During a power outage, the rotational torque of the motor disappears, so the panel frame rotates 180 degrees in the opposite direction under the rotational torque of the return spring, and the second display plate appears inside the opening of the housing, and the additional plate is removed. Second
The "Out of Use" sign hanging from the bottom edge of the display board is
It is displayed on an enlarged display screen spanning between the second display board and the additional board, and its display area is approximately twice the display area of "Pause".

〔Example〕

Examples of the present invention will be described below.

In FIGS. 1 to 4, the discontinuation display device has a "temporary stop" message inside the housing 2 as a normal display.
A display board (first display board) 7a that displays "Discontinue use" as an abnormal display (second display board)
It has a display board) 7b, and displays the display in the front opening 1 by switching the display during normal times and abnormal times when stopped.

In this case, the housing 2 is a hollow box with an open front (vertical surface), and a shaft 4 is fixed across the shaft tubes 3 at both ends in the housing 2, and Panel frames 6, 6 are rotatably mounted on the sides via bearings 5, respectively, and a pair of display plates 7a, 7a, 7a, 7a, 7a, 7a, 7a, 7a, 7b, 7a, 7b, 7a, 7b, 8b, 9b, 8b, 7b, 9b, 9b, 9b, 10b are shown in FIG.
Attach 7b symmetrically. Although the structure of the display board is not particularly limited, in the embodiment, as shown in FIG. The rod 8 is tightened and fixed, and a display panel 9 is pasted in parallel between both connecting rods 8, 8 to form respective display boards 7a, 7b. 1 and 4, a return spring 10 having one end fixed to the shaft 4 is wound around the circumferential surface of the shaft 4, and the other end is fixed to the panel frame 6, respectively. In FIG. 3, 11 is a motor for driving the housing 6. A sprocket 12 mounted on the motor shaft and a sprocket 13 mounted on one panel frame 6 are interlocked by a chain 14. On the other hand, as shown in FIG. 3, an arm rod 15 is attached to the sprocket 13 so as to protrude from a part of its circumferential surface, and when the panel frame 6 is rotated in the forward and reverse directions, it can be rotated 180 degrees and the display board 7a can be rotated 180 degrees.
Alternatively, stoppers 16a and 16b are installed in the housing 2, so that either one of the stoppers 7a abuts against the arm rod 15 and stops it at a position facing the opening 1 of the housing 2.
For example, a capacitor motor is used as the motor 11, and is kept energized at all times, rotated in one direction against the spring force of the return spring 10, and at a position where the arm rod 15 comes into contact with the stopper 16a, one side of the display plate 7a is closed to the housing. It appears in the front opening 1 of the body 2. At this time, a hinge or the like is used at one end (upper edge side) of the display board 7b on the side hidden behind the display board 7b, and an additional board 1 having approximately the same shape as the display board 7b is attached.
7 are foldably connected to form an enlarged display surface spanning both plates 7b and 17.

The display board 7a that appears inside the opening 1 when the motor 11 is energized is used for normal display, and the display surface is marked with a "temporary stop" sign, and the additional board 1
The display board 7b with the number 7 attached thereto is used for abnormality display, and a sign such as "Suspended Use" is attached to the entire surface of the enlarged display surface as shown in FIG. Therefore, the "stop use" sign will be displayed approximately twice the size of the "temporarily stop" sign.

The proposed device is installed on a steel pipe pillar or the like installed at a level crossing in the same way as in the past, and the power source of the motor 11 is connected to the power circuit of the level crossing safety device. As long as the motor 11 is energized, its rotational torque acts on the panel frame 6, the panel frame 6 rotates against the spring force of the return spring 10, and the display board 7a is inserted into the opening 1 of the housing 2. The normal display of "temporarily stop" is displayed. Next, when the power to the level crossing safety device is briefly cut off due to a power outage, the power to the motor 11 is cut off at the same time, and its rotational torque is lost.
The arm rod 15 rotates 180° under the restoring force of the return spring 10, and the arm rod 15 comes into contact with the stopper 16b and stops. This hides the display board 7a for normal display,
As shown in FIGS. 5 and 6, a display board 7b for indicating an abnormality appears in the opening 1 of the casing 2, and an additional board 17 communicating with the display board 7b is located below the casing 2. It hangs down and is supported in a vertical position by a regulating end 18 provided at the lower edge of the opening 1, and is switched to a display of "stop use" attached to an enlarged display surface spanning between both plates 7a and 17. When the power outage is canceled and the motor 11 starts to be energized, the panel frame 6 is rotated to return to normal display as described above.

[Effect of idea]

In this case, in a device that switches between normal display and abnormal display as described above, an additional board is connected to the display board for abnormal display to enlarge the display surface. Both displays can be easily distinguished by the difference in size and shape of the display surface. In particular, the normal display is displayed only within the opening of the casing, whereas the abnormal display is displayed extending further downward from the opening of the casing. It can be clearly recognized by passersby.

Furthermore, the present invention has the effect that the display area of the abnormality display is expanded to be larger than the opening area of the display opening of the casing, thereby making it possible to reduce the size and weight of the main body of the apparatus.

[Brief explanation of the drawing]

Figure 1 is a partially sectional front view showing an embodiment of the present invention, Figure 2 is a right side view, Figure 3 is a left side view, and Figure 4 is a left side view.
The figure is a partially sectional plan view, FIG. 5 is a front view in the case of an abnormal display, and FIG. 6 is a right side view of the same. 1...opening, 2...casing, 4...shaft,
6...Panel frame, 7a, 7b...Display board, 11...
…motor.

Claims (1)

[Scope of claims for utility model registration] Housing 2, panel frames 6, 6, and display boards 7a, 7
b, stoppers 16a, 16b, and return spring 10.
and a motor 11, the housing 2 is a hollow box having a display opening 1 on one vertical surface, and has a shaft 4, the shaft 4 is a , is installed in the hollow part of the housing 2 with both ends fixed, and the panel frames 6, 6 are for supporting the display board, and are connected to each other and rotatably mounted on both ends of the shaft 4. The display board forms a pair of a first display board 7a and a second display board 7b, and performs display by selectively exposing one of them in the opening 1 of the housing 2 by rotating forward and backward. Both display boards 7a and 7b are mounted symmetrically and parallel to the panel frames 6 and 6 across the axis of the shaft 4, and the first display board 7a is for normal display, and the second display board is for normal display. The plate 7b is for displaying an abnormality and has an additional plate 17. The additional plate 17 is foldably connected to one end of the second display plate 7b and hangs from the lower edge of the second display plate 7b to display an abnormality. When concealing the screen, it is bent at right angles and stored on the first display board 7a, and the stoppers 16a, 16b are used to enlarge the display surface of each display board 7a, 7.
The rotation angle of the panel frames 6, 6 is restricted to a range of 180° in accordance with the display position of the second display plate 7b. 6, and the motor 11 is characterized in that it applies a rotational torque to the panel frames 6, 6 in the direction of displaying the first display plate 7a against the spring force of the return spring 10. A device that indicates the suspension of use of level crossing safety equipment.