JP2000035764A - Mounting structure of display unit in panel display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a panel display permitting to protect a wiring board and also allowing a single worker to easily mount or dismount the display unit on a mount plate. SOLUTION: This mounting structure is provided with handling arms 5, 6 at the top and bottom of both sides on the back of a display unit 1, with the projecting lengths made longer than a wiring board 4, and after these handling arms are inserted into a mount cut-out 7a of a mount plate 7, the display unit 1 is permitted to be temporarily mounted on the mount plate 7 by making use of it that the handling arms 5, 6 are engaged with the opening edges 7a-1, 7a-2 of the mount cut-out 7a, even though the upper side of the display unit 1 is tilted frontwards.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel display in which a large number of light-emitting elements such as LED lamps and chip LEDs are arranged two-dimensionally and uniformly, and in particular, it is easy to attach and detach a display to and from a mount plate. The present invention relates to a mounting structure of a display device which can be performed in a short time.

[0002]

2. Description of the Related Art Image displays using light emitting diodes (hereinafter, referred to as "LEDs") include, for example, large displays for outdoor advertisements and traffic, indicators for various traffic lights, automobiles and the like, and televisions. It has spread to the field of.

In such a panel display for image formation, for example, dots in units of a combination of R, G, and B LEDs are two-dimensionally arranged in a group on the front surface of an LED display, and the LED display is mounted on a panel. The basic configuration is to fix it to the mount plate of the display frame.

FIG. 6 is a side sectional view showing a structure for mounting an LED display on a mount plate.

In FIG. 6, L for panel display is used.
The ED display 51 has, for example, a square shape or a rectangular shape when viewed from the front, and arranges a large number of R, G, and B LEDs 52 as pixels on the front surface and these LEs on the back surface.
A wiring board 53 electrically connected to D52 is attached. On the other hand, the mounting plate 54 fixed to the front surface of the panel display frame (not shown)
A mounting opening 54a large enough to allow the wiring board 53 to be inserted is opened so that the wiring board 53 can be operated from the back side of the mount plate 54 during maintenance.

The mounting plate 54 of the LED display 51
As shown in (a) of the figure, the fixing work is performed by positioning in front of the mount plate 54, and as shown in (b) of FIG.
Positioning pins 51 provided at a plurality of locations on the back surface of D display 51
a into the through hole 54d opened in the mount plate 54. Then, the screw 55 is screwed from a plurality of screw holes 54b formed in the mount plate 54 into an insert nut 54c embedded in the back surface of the LED display 51 in accordance with the screw holes 54b, so that the LED display 51 is mounted on the mount plate 54. Fixed to That is, in the conventional example shown in the drawing, the LED display 51 is incorporated and positioned from the front side of the mount plate 54,
Are fixed by screws 55 from the back side of the device.

[0007] In addition to such a mounting structure, L
In some cases, the ED display 51 can be attached and detached by only working from the front side of the mount plate 54. However, in the case of a large-sized panel display, since all the lines for connecting to the wiring board 53 are wired on the back side of the mount plate 54, the operation on this line cannot be substantially performed by operating only the front side. . Therefore, the configuration that allows attachment and detachment from the front side is limited to only relatively small displays.

[0008]

In a panel display having a large screen, a large number of mount plates 54 are arranged vertically, horizontally, and in most cases, the mount plates 54 exceed the height of the worker. For this reason, in the operation of fixing the LED display 51 to each of the mount plates 54 fixedly arranged in advance on the frame of the panel display, a scaffold is formed around the mount plate 54, and two people are used on the front side and the back side. It is necessary to make a worker wait. That is, the worker on the front side attaches the wiring board 53 of the LED display 51 to the mounting opening 54a.
In this state, the operator holds the hand by hand while screwing the screw 55 on the back side.

In the case of replacing the LED display 51, two workers are also required. When the screw 55 is loosened, the LED display 51 may fall. Therefore, another worker receives the LED display 51 by setting a scaffold on the front surface of the mount plate 54.
This is because there is only the wiring board 53 on the back surface of the LED display 51, and if the worker touches the wiring board 53, it is easily damaged, and the worker on the back side cannot grasp the LED display 51. This is one reason.

If the wiring board 53 is still protruding from the rear surface of the LED display 51, it is necessary to store the wiring board 53 so as not to be damaged or to handle it on site. For example, if the wiring boards 53 are arranged and stored in an upward orientation or temporarily placed on site, the wiring boards 53 are not damaged.
However, when the LEDs are stacked, another LED indicator 51 is mounted on the wiring board 53, so that the rear surface of the wiring board 53 is damaged. Therefore, since the LED displays 51 are arranged on one surface in a storage or temporary storage place, a large space is required, and a practical problem is serious.

On the other hand, for example, an LED display 51 provided with a plurality of protrusions or spacers protruding outside the wiring board 53 on the back surface has already been proposed. In a device provided with such protrusions and spacers, even if the LED displays 51 are stacked, there is no interference with the wiring board 53, so that protection is possible.

However, these projections and spacers have the primary purpose of protecting the wiring board 53. Therefore, it is still necessary to work both from the front side and the back side of the mount plate 54, and although the LED display 51 can be temporarily stored and stored at the site, the LED display 51 can be displayed on the panel display. It does not lead to an improvement in the workability of assembly and maintenance.

As described above, in the conventional panel display, particularly in the case of a large screen, two workers are required to attach / detach to / from the mount plate, and projections and spacers are also used for protecting the wiring board. It is only used effectively.

An object of the present invention is to provide an LED which can protect a wiring board and can easily attach and detach a display to and from a mount plate by only one operator.
To provide a display.

[0015]

According to the present invention, there is provided a display having a light emitting element arrayed on a front surface side and a wiring board protrudingly provided on a rear surface side for conducting connection with the light emitting element. A mounting structure in which the display is attached to the mount plate through a rotary screw from the back side of the mount plate, and is attached to at least one of the upper and lower or left and right ends of the rear surface of the display plate. A pair of operation arms having handle shapes for attaching and detaching operations is provided as a protruding length longer than the wiring board, and the display is provided between the opening shape of the mounting opening of the mount plate and the pair of operation arms. When tilted with respect to the mount plate, the operating arm has a relationship capable of engaging with the opening edge of the mounting port,
The display can be restrained on the mount plate side by engagement of the operation arm with an opening edge.

In this configuration, even when the operation arm is inserted into the mounting opening of the mount plate and the display device is inclined by its own weight so that the upper end thereof comes forward, the operation arm is engaged with the opening edge of the mounting opening. In this case, the mounting plate does not come off, and can be temporarily placed from the front side of the mounting plate.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 is a panel display main body comprising a light emitting element arrayed on the front side and a wiring board protrudingly provided on the rear side to be electrically connected to the light emitting element. And mounting the display to the mount plate through a rotary screw from the back side of the mount plate, at least one of the top and bottom or left and right ends of the back of the display plate On one side, a pair of operation arms in the shape of a handle for attachment / detachment operation is provided as a protruding length longer than the wiring board, and between the opening shape of the mounting opening of the mount plate and the pair of operation arms, When the indicator is tilted with respect to the mount plate, the operation arm has a relationship capable of engaging with the opening edge of the mounting opening, and the operation arm is provided. The indicator can be restrained to the mount plate side by the engagement of the opening and the opening edge.After the operation arm is inserted into the mounting opening of the mounting plate, even if the display is tilted, the indicator can be opened from the mounting opening. Since the mounting plate does not come off, the mounting plate can be temporarily placed from the front side, and one worker can perform this temporary placement work and fix it with the rotating screw from the back side.

According to a second aspect of the present invention, when the display is set at a specific posture, the display can be inserted and removed between the size of the display and the size of the opening of the mount plate. 2. A mounting structure for a display device in a panel display according to claim 1, wherein the display arm can be put in and taken out through a mounting opening as long as the display device is in a specific posture. This has the effect that work only needs to be performed from the back side of the plate.

A specific example of the embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a rear perspective view of a display used for the panel display of the present invention, and FIG. 2 is a right side sectional view shown together with a mount plate.

In the drawing, a display 1 has a square front shape, and R, G, B LEDs 2 on its front surface.
A set of a, 2b, and 2c is used to arrange dots as one pixel in a matrix, and a visor 3 for blocking insertion of sunlight is integrally provided on each row of these dots. Also, on the back surface of the display 1, a wiring board 4 that is connected to each of the LEDs 2a, 2b, and 2c of each dot is attached as in the conventional example. The wiring board 4 includes a control IC for control based on image data, including only the mounted display 1 or another display disposed around the display 1.
(Not shown) are mounted and electrically connected to an electric circuit on the panel display main body side.

On the back surface of the display 1, a pair of operation arms 5 and 6 are located above and below the wiring board 4 so as not to interfere therewith.
Is provided. These operation arms 5 and 6 have a length protruding outside the wiring board 4 as shown in FIG. 2 and are arranged at portions except for both left and right ends of the display 1. In other words, the operation arms 5 and 6 include a pair of legs 5a and 6a protruding from the back surface of the display 1, and these legs 5a and 6a.
The grips 5b, 6b are connected to each other, and a space is provided between the grips 5b, 6b and the back surface of the display 1, so that the grips 5b, 6b can be gripped by hand.

The operation arms 5 and 6 may be integrally formed on the back surface of the display 1 or may be formed separately and connected to the display 1. The material may be a metal plate or a resin, as long as it has a certain bending strength against a vertical load in FIG.

A plurality of positioning pins 1a and insert nuts 1b are provided on the rear surface of the display 1 at positions outside the areas of the wiring board 4 and the operation arms 5 and 6, and on the surface of the mount plate 7, A packing 1c for seating and sealing is provided.

The mounting plate 7 arranged on the main body side of the LED display is the same as that of the conventional example, and as shown in FIG. A through-hole 7b corresponding to the positioning pin 1a is opened at two places along the edge, and a plurality of screw holes 7c matching the insert nut 1b are provided. The mounting opening 7a is a square opening through which not only the wiring board 4 but also the operation arms 5 and 6 located above and below the wiring board 4 can be inserted. Therefore, for example, even when the operation arms 5 and 6 are arranged on the left and right of the wiring board 4, the operation arms 5 and 6 can be passed through the mounting opening 7 a, and a case where four operation arms are provided on the upper, lower, left and right sides can be received. Also,
When the positioning pin 1a is inserted into the through hole 7b, the screw hole 7c is aligned with the insert nut 1b, and the fixing screw 8 is screwed into the insert nut 1b from the screw hole 7c from the back side of the mount plate 7. 1
Can be fixed to the mount plate 7.

FIG. 3 is a right side sectional view showing a procedure for assembling the display 1 into the mount plate 7.

As shown in FIG. 2A, the display plate is set in such a manner that the operation arms 5 and 6 can be inserted into the mounting opening 7a with respect to the mount plate 7 fixed to the main body of the panel display. 1 is inserted into the mounting opening 7a while being held by a worker. When the operator releases his / her hand after the assembly, the indicator 1 is lowered by its own weight, and as shown in FIG. When it hits 1, the movement is restricted. On the other hand, since the upper end side of the display 1 is a free end, it tends to fall toward the front side of the mount plate 7 with its own weight as the center of rotation about the abutting point between the operation arm 6 and the opening edge 7a-1. I do. On the other hand, the operation arm 5 located on the back surface on the upper end side of the display 1 approaches the opening edge 7a-2 at the upper end of the mounting opening 7a as the display 1 becomes inclined, and finally the operation arm 5 Abuts against the opening edge 7a-2, and its movement is restricted.

As described above, from the front of the mount plate 7, the operation arms 5, 6
Is inserted, it does not come off from the mount plate 7 as shown in FIG. Therefore, if the display 1 is inserted into the mounting opening 7a from the front of all the mounting plates 7 arranged on the entire screen of the main body of the panel display, the mounting plate 7 can be temporarily placed in the state shown in FIG.

Next, the operator moves to the rear surface of the mount plate 7, grasps the two operation arms 5, 6 projecting from the mounting opening 7a by hand, and pulls in the direction of the arrow shown in FIG. As a result, the packing 1c comes into contact with the front surface of the mount plate 7, and the positioning pin 1a fits into the through hole 7b, and at the same time, the screw hole 7c
Matches the insert nut 1b. Then, while the operator holds one of the operation arms 5 and 6 with one hand, the screw 8 is passed through the screw hole 7c and the insert nut 1 is inserted.
b, screw the display 1 against the mount plate 7.
Can be fixed.

In this manner, the display 1 can be mounted from the front of the mount plate 7 and temporarily placed using the operation arms 5 and 6, and the fixing operation using the screw 8 can be similarly performed from the back of the mount plate 7. This can be performed while holding the arms 5 and 6 by hand. Therefore, only one worker can temporarily place the display 1 and fix the display 1 with the screws 8, and construction that does not require two workers as in the related art can be performed.

Further, even when the display 1 is removed from the mount plate 7 during maintenance, only the work from the back side of the mount plate 7 is required, and the operation is performed in the following manner.

First, one of the operation arms 5 and 6 of the fixed display 1 is grasped by hand, and all the screws 8 are removed. Then, as shown in FIG. The posture is changed so as to be in the diagonal direction of 7a. Thus, even if the display 1 has a front shape larger than the opening of the mounting port 7a, the display 1 can be pulled out from the mounting port 7a while holding the operation arms 5 and 6, and taken out to the back side of the mounting plate 7. it can. Also, when re-attaching after the inspection, if the operation arms 5 and 6 are gripped and the operation is performed in the reverse manner, the display 1 can be fixed to the mounting plate 7 by the screws 8.

By providing the operation arms 5 and 6 on the back surface of the display 1 as described above, the display 1 can be attached and detached only by working from the back side of the mount plate 7.
The work is simplified.

Further, since the operation arms 5 and 6 protrude longer than the wiring board 4, they can be stored vertically stacked as shown in FIG. In the illustrated example, the postures of the upper and lower indicators 1 are alternately changed, and a partition plate 9 made of resin or the like is interposed between the display devices. As described above, since a plurality of indicators 1 can be stacked,
The storage space at the factory and the temporary storage space at the construction site can be reduced, and the work flow of the worker is shortened, so that the workability is improved. Since the upper and lower indicators 1 do not hit the wiring board 4, the damage is also avoided.

[0034]

According to the first aspect of the present invention, the display can be temporarily placed on the mount plate by inserting the operation arm of the display into the mounting opening from the front side of the mount plate. The display can be mounted and removed using the rotating screw.
Workability is significantly improved as compared with the conventional work by two persons.

According to the second aspect of the present invention, the display can be inserted and removed from the mounting opening by setting the display to its specific posture. Therefore, the display can be fixed or removed by the rotating screw only by working from the back side of the mount plate. Can be improved.

[Brief description of the drawings]

FIG. 1 is a rear perspective view of a display device used for a light emitting diode display of the present invention.

FIG. 2 is a right side cross-sectional view when the operation arm on the back of the display is inserted into a mounting opening of a mount plate.

FIG. 3 is a right side cross-sectional view showing the procedure for assembling and fixing a display device to a mount plate in order.

FIG. 4 is a diagram showing a posture when a display is pulled out from a mounting opening.

FIG. 5 is a diagram showing a state in which indicators are stacked using an operation arm.

FIG. 6 is a schematic view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Indicator 1a Positioning pin 1b Insert nut 1c Packing 2a, 2b, 2c LED (Light emitting diode) 3 Visor 4 Wiring board 5, 6 Operation arm 5a, 6a Leg 5b, 6b Grip 7 Mounting plate 7a Mounting port 7a-1, 7a-2 Opening edge 7b Through hole 7c Screw hole 8 Screw 9 Partition plate

Claims (2)

[Claims] 1. A display device in which light emitting elements are arranged on a front side and a wiring board which is electrically connected to the light emitting elements is provided on a rear side of the panel. A mounting structure for attaching the display to the mount plate through a rotating screw from the back side of the mount plate, wherein at least one of the upper and lower or left and right ends of the rear surface of the display has a handle shape for attaching and detaching work. A pair of operating arms are provided with a protruding length longer than the wiring board, and the display is inclined with respect to the mount plate between the opening shape of the mounting opening of the mount plate and the pair of operating arms. When the operation arm has a relationship capable of engaging with the opening edge of the mounting opening, the engagement between the operation arm and the opening edge causes the A display mounting structure for a panel display in which the display can be restricted to the mount plate side. 2. A relationship between the size of the display and the size of the opening of the mount plate, wherein the display can be inserted and removed through the opening when the display is in a specific posture. Item 2. A mounting structure of a display device in the panel display according to Item 1.