JP7571972B2 - Departure board LCD fixing mechanism - Google Patents

Description

This invention relates to a fixing mechanism for fixing a liquid crystal display (LCD) to a departure board installed on a station platform, etc.

Departure boards are installed near the ticket gates of stations and on platforms to show passengers information about train operations. Traditionally, departure boards have used liquid crystal displays to display information.

For example, Patent Document 1 discloses examples of various display methods, such as a matrix of light-emitting diodes, an LCD screen, and a flip-flap type.

JP 2018-106465 A

In recent years, stretch (horizontal) LCDs and bar-type (rod-shaped) LCDs have appeared, and these small (low) and horizontally long LCDs are also used for departure signs from the standpoint of design.

These departure signs, which use LCDs that are small (low) in height and long in width, are smaller (lower) in height than departure signs that use regular full-size LCDs, and because their exterior shapes are designed for aesthetic appeal, there are limitations on the interior space of the departure signs.

One method for fixing the LCD inside the starting specimen is to hook a bolt on the back of the LCD onto a metal fitting on the starting specimen.

Another option is to attach and fix an LCD to the departure board door that opens upwards.

However, the above-mentioned method of fastening the bolt on the back of the LCD to a metal fitting on the departure specimen means that unless the LCD is completely removed from the departure board, it is not possible to access other electrical components located within the departure board, significantly compromising maintainability.

In addition, the method described above of attaching and fixing an LCD to the departure board door that opens upwards makes the door structure complicated and heavy, making it necessary to provide a damper or other device to assist with opening and closing.

Furthermore, both of the above-mentioned two methods are configured to hook a bolt on the back of the LCD to a metal fitting on the starting specimen body to secure it. Therefore, it is difficult for a user such as a worker to hook the metal fitting on the back of the LCD to the metal fitting on the starting specimen body and secure it while holding the LCD by hand on a stepladder and adjusting its position.

To address the above problems, the objective is to provide an LCD fixing mechanism for a departure board that allows access to electrical components inside the departure board without removing the LCD and makes it easy to attach and remove the LCD from the departure board specimen.

In order to achieve the above object, the present invention relates to a method for manufacturing a semiconductor device comprising the steps of:
In a departure board having a door on the front side of a housing of the departure board, and an LCD is housed in the housing through the door,
The device is provided with a mounting fixture installed on the back of the LCD and a main body side receiving fixture having one end tiltably fixed within the housing of the departure board,
The mounting fixture has a pair of substantially L-shaped receiving members,
The L-shaped receiving members are disposed opposite each other at a distance capable of holding the main body receiving tool therebetween,
The main body side receiving tool is sandwiched between the substantially L-shaped receiving members disposed opposite to each other, thereby forming an LCD fixing mechanism for the departure board, in which the LCD is fixed inside the housing of the departure board.

The invention according to claim 2 is as follows:
A locking/unlocking unit capable of connecting the LCD and the housing of the departure board is provided at corresponding locations on the upper surface of the LCD and the housing of the departure board, forming the LCD fixing mechanism for the departure board as described in claim 1.

The invention according to claim 3 is as follows:
The locking/unlocking unit has a locking/unlocking tool and a pin-type receiver,
The LCD fixing mechanism for a departure sign as described in claim 2 is configured so that the locking/unlocking device is locked by engaging with the pin-shaped receiver, and the engagement is released and the locking is unlocked by moving the unlocking lever of the locking/unlocking device.

The inventions of claims 1 to 3 are configured such that the mounting fixture installed on the back of the LCD is slid onto the main body side receiving fixture inside the housing of the departure post, the main body side receiving fixture is clamped by the mounting fixture, and the LCD is fixed inside the housing of the departure post. Therefore, when fixing the LCD inside the housing of the departure post, once the mounting fixture installed on the back of the LCD is slid over the outer periphery of the main body side receiving fixture inside the housing of the departure post and the main body side receiving fixture is clamped by the mounting fixture, the worker or other user can release the mounting fixture 2 and the main body side receiving fixture 3 from the housing without having to screw them together with bolts. In other words, the worker or other user does not need to simultaneously perform the tasks of placing the LCD inside the departure post and fixing the LCD placed inside the housing with bolts, reducing the workload.

In addition, even if the LCD is tilted at any angle horizontally and is not being held by a worker or other user with their hands, the mounting fixture clamps the main body side receiving device, so the LCD will not come off the departure sign's housing and fall. The worker or other user can access the electrical components inside the departure sign with both hands.

In addition, the LCD fixed inside the departure board housing can be tilted to any angle in the horizontal direction, so that a user such as a worker can access the electrical components inside the departure board 1 without removing the LCD from inside the departure board housing.

In particular, the invention of claim 3 uses a locking/unlocking unit in which the locking/unlocking device is locked by engaging with a pin-shaped receiver, and the engagement is released and unlocked by moving the unlocking lever of the locking/unlocking device. Therefore, when a user such as a worker connects the LCD and the departure beacon housing, he or she only needs to engage the locking/unlocking device with the pin-shaped receiver, and when disconnecting, he or she only needs to move the unlocking lever, achieving both a secure connection between the LCD and the departure beacon housing and simple operation.

1 is a schematic perspective view of an LCD fixing mechanism of a departure board according to a first embodiment of the present invention; FIG. 1 is an explanatory diagram showing a state in which a door of a housing of a departure board related to an LCD fixing mechanism of the departure board according to the first embodiment of the present invention is open; FIG. 1 is an explanatory diagram showing a state in which the door of the departure board housing relating to the LCD fixing mechanism of the departure board according to the first embodiment of the present invention is opened and the LCD 4 is tilted substantially horizontally toward the door 12. FIG. FIG. 4 is an explanatory diagram showing a part of the state shown in FIG. 3 in an enlarged manner.

(Embodiment Example 1)
Hereinafter, a first embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, the components described in this embodiment are merely examples, and are not intended to limit the scope of the present invention to these alone. Fig. 1 is a schematic perspective view of an LCD fixing mechanism of a departure sign in a first embodiment of the present invention. In detail, Fig. 1 shows a state in which a door 12 of a housing 11 of a departure sign 1 is opened, and a main body side receiving device 3 is tilted at an arbitrary angle in the horizontal direction (in the first embodiment, toward the door 12).

<Departure board LCD fixing mechanism>
The housing 11 of the departure sign 1 of the embodiment 1 is provided with an openable door 12 on the front, and the LCD 4 is housed and fixed inside the housing 11 through the door 12. The LCD fixing mechanism of the departure sign of the embodiment 1 includes a mounting fixture 2 and a main body side receiving fixture 3.

The mounting fixture 2 has a pair of approximately L-shaped receiving members 21. Each of the approximately L-shaped receiving members 21 is installed facing each other on the back surface of the LCD 4 at a distance that allows the main body receiving fixture 3 to be clamped.

The main body side receiving device 3 is plate-shaped and is fixed to the bottom of the housing 11 of the departure sign 1 via a hinge 5 (see FIG. 4) so as to be tiltable. In other words, as shown in FIG. 1, the main body side receiving device 3 can be tilted at any angle in the horizontal direction, or returned to a straight vertical direction (≒ approximately parallel to the vertical direction). Note that, although a plate-shaped configuration is shown for the main body side receiving device 3 in the first embodiment, this configuration is not limited thereto, and for example, the main body side receiving device 3 may be rod-shaped.

A locking/unlocking unit 6 capable of connecting the LCD 4 to the housing 11 of the departure sign 1 is provided on the top surface of the LCD 4 and the top inner surface of the housing 11 of the departure sign 1. For example, the locking/unlocking unit 6 may be a commercially available product, such as Snatchlock (registered trademark) manufactured by Takigen Manufacturing Co., Ltd.

The locking/unlocking unit 6 has a locking/unlocking device 61 and a pin-shaped (or rod-shaped) receiver 62 (not shown). The locking/unlocking device 61 engages with the pin-shaped receiver 62 to lock, and the engagement is released and the lock is unlocked by moving the unlocking lever 63 of the locking/unlocking device 61. Because of this configuration, when a user such as a worker connects the LCD 4 to the housing 11 of the departure sign 1, he or she only needs to engage the locking/unlocking device 61 with the pin-shaped receiver 62, and when disconnecting, he or she only needs to move the unlocking lever 63, which allows for both a secure connection between the LCD 4 and the housing 11 of the departure sign 1 and simple operation.

<Operation of the departure board LCD fixing mechanism>
Next, the operation of the LCD fixing mechanism of the departure board according to the first embodiment will be described with reference to Figures 2 to 4. For the sake of convenience, the operation of removing the LCD 4 from within the departure board 11 will be described.

First, as shown in FIG. 2, a user such as an operator opens the door 12 of the departure sign 1. Next, as shown in FIG. 3, the unlocking lever 63 of the locking/unlocking device 61 is moved to release the connection between the LCD 4 and the housing 11 of the departure sign 1, and the LCD 4 is tilted at any angle toward the door 12. Note that FIG. 3 shows the LCD 4 tilted approximately horizontally toward the door 12. Next, the bolts 7 (see FIG. 4; four bolts in FIG. 4) that screw the mounting fixture 2 to the main body side receiving fixture 3 are removed. Then, the mounting fixture 2 provided on the back of the LCD 4 is slid toward the door 12 to remove the LCD 4 from the main body side receiving fixture 3. This completes the removal of the LCD 4 from inside the departure sign 11.

On the other hand, the process of fixing the LCD 4 inside the housing 11 of the departure board 1 is the reverse of the removal process described above. This will be explained in detail below.

First, a user such as a worker opens the door 12 of the departure sign 1. Next, the main body side receiver 3 is tilted at an arbitrary angle in the direction of the door 12 of the housing 11 so that the attachment 2 installed on the back of the LCD 4 can be easily slid on the outer periphery of the main body side receiver 3. Then, holding the LCD 4, the attachment 2 is slid on the outer periphery of the main body side receiver 3 so that the attachment 2 installed on the back of the LCD 4 clamps the main body side receiver 3, and the attachment 2 clamps the main body side receiver 3. Next, a user such as a worker screws the attachment 2 and the main body side receiver 3 together with a bolt 7. Then, the LCD 4 is lifted and set up vertically. A locking/unlocking unit 6 capable of connecting the LCD 4 to the housing 11 of the departure sign 1 is provided on the upper surface of the LCD 4 and the inside of the upper surface of the housing 11 of the departure sign 1. Therefore, when a user such as a worker lifts the LCD 4 and stands it upright, the locking/unlocking device 61 on the LCD 4 engages with the pin-shaped receiving device 62 on the housing 11, and the LCD 4 is locked. This completes the fixing of the LCD 4 into the housing 11 of the departure sign 1.

In this way, when fixing the LCD 4 inside the housing 11 of the departure post 1, the attachment tool 2 installed on the back of the LCD 4 is slid over the outer periphery of the main body side receiving tool 3 inside the housing 11 of the departure post 1, and once the main body side receiving tool 3 is clamped by the attachment tool 2, the worker or other user can release the attachment tool 2 and the main body side receiving tool 3 without having to screw the bolt 7 together. In other words, the worker or other user does not need to simultaneously place the LCD 4 inside the departure post 1 and fix the LCD 4 placed inside the housing 11 with the bolt 7, reducing the workload.

Furthermore, because of this configuration, it is possible for a user such as an operator to access the electrical components inside the departure post 1 with both hands, without removing the LCD 4 from inside the housing 11 of the departure post 1, by clamping the main body side receiving device 3 with the mounting device 2 and not screwing the bolt 7. Note that the electrical components provided inside the housing 11 of the departure post 1 are omitted in Figures 1 to 4, as they are not directly related to the LCD fixing mechanism of the departure post according to the present invention. However, it goes without saying that various electrical components are provided inside the housing 11 of the departure post 1 in order to operate the departure post 1 and to realize the functions of the departure post 1.

In addition, because of this configuration, it is possible for a user such as a worker to access the electrical components inside the departure post 1 without removing the LCD 4 from inside the housing 11 of the departure post 1, with the main body side receiving device 3 clamped by the mounting device 2 and the bolt 7 screwed in.

That is, a user such as a worker opens the door 12, moves the unlocking lever 63 of the locking/unlocking device 61, releases the connection between the LCD 4 and the housing 11 of the departure sign 1, and tilts the LCD 4 at any angle toward the door 12. In this way, the LCD 4 can be tilted at any angle toward the door 12, allowing the user such as a worker to access the electrical components inside the departure sign 1.

1: departure board, 11: case, 12: door,
2: mounting fixture, 21: substantially L-shaped receiving member,
3: Main body side receiving tool,
4: LCD,
5: hinge,
6: locking/unlocking unit, 61: locking/unlocking tool, 62: pin-shaped receiver, 63: unlocking lever, 7: bolt

Claims (3)

In a departure board having a door on the front side of a housing of the departure board, and an LCD is housed in the housing through the door,
The device is provided with a mounting fixture installed on the back of the LCD and a main body side receiving fixture having one end tiltably fixed within the housing of the departure board,
The mounting fixture has a pair of substantially L-shaped receiving members,
The L-shaped receiving members are disposed opposite each other at a distance capable of holding the main body receiving tool therebetween,
An LCD fixing mechanism for a departure sign, characterized in that the LCD is fixed within the housing of the departure sign by the main body side receiving device being clamped by the opposing approximately L-shaped receiving member. The LCD fixing mechanism for the departure sign described in claim 1 is characterized in that a locking/unlocking unit capable of connecting the LCD and the departure sign housing is provided at a corresponding location on the top surface of the LCD and the housing of the departure sign. The locking/unlocking unit has a locking/unlocking tool and a pin-type receiver,
3. The LCD fixing mechanism for a departure board as described in claim 2, characterized in that the locking/unlocking device is locked by engaging with the pin-shaped receiver, and the engagement is released and the lock is unlocked by moving the unlocking lever of the locking/unlocking device.

Images