JP5121758B2 - Grid connection structure in mosaic display panel - Google Patents

Description

  The present invention relates to a mosaic in which a board surface is configured by mounting plain tiles, engraving tiles engraved with symbols or designs, etc. on each of the grids which are divided into vertical and horizontal grids by a partition wall to form a number of bottlenecks. The present invention relates to a grid display structure in the case where a large panel is configured by connecting grids of a certain size with respect to a formula display panel.

The grid of the mosaic display panel is made of, for example, metal, and a plurality of grids having a certain size formed in a grid pattern by vertical and horizontal partition walls are connected to complete a display panel having a required size. Under the present circumstances, the structure disclosed by patent document 1 or patent document 2 is known as a structure for connecting a grid.
In Patent Document 1, a connecting cylinder portion is formed at the intersection of the partition walls, and the surrounding partition walls are formed by dividing the partition wall thickness into two, including the connecting cylinder portion, and a plurality of grids are combined. In this state, a structure is disclosed in which the surrounding partition walls have the same thickness as the other partition walls with the surrounding partition walls of the adjacent grid, and a connecting cylinder portion is formed. As a connection structure, an annular protrusion that protrudes outward is provided on each of the front and back end faces of the cylinder part, and a short cylinder part that can be fitted to the bolt head and nut of the connection bolt is formed. There is disclosed a structure in which an annular protrusion formed on a cylindrical portion of a grid adjacent on both the front and back surfaces is engaged with a short cylindrical portion of a connecting bolt and nut to be fastened and fixed.

In Patent Document 2, as shown in FIG. 10, in addition to the technique disclosed in Patent Document 1, a part of the partition wall is extended in the surface direction of the grid 1 on the outer peripheral side of the cylindrical portion 4 and the tip surface thereof is a grid. The idea of forming a protrusion 10 that becomes a support surface of a tile 9 attached to 1 is disclosed.
Since the grid 1 described in Patent Documents 1 and 2 has a structure in which the connecting bolt 6 is screwed with a driver tool from the front of the grid 1 as shown in FIG. 12, when connecting a plurality of grids, The tile 9 is attached after the grid 1 is connected, or the grids 1 and 1 that are not attached at least in the periphery are connected, and the peripheral tile 9 is attached after the grids 1 and 1 are connected. I had to complete it.

No. 02-5606 Japanese Utility Model Publication No. 06-17309

  The inventions described in Patent Document 1 and Patent Document 2 require a screwing operation of the connecting bolt 6 from the front of the grid 1 when connecting the grid 1. By the way, on the tile 9 to be mounted on the grid 1, it is necessary to describe various symbols and designs by means such as engraving in order to constitute a panel surface. This description may be made by combining and processing one tile 9 as a unit, but it is processed by mechanical processing, that is, NC engraving and / or printing, in a fixed size mounted on the grid 1. It is efficient to do so, and a single pattern continuous on the surface of the plurality of tiles 9 and 9 can be efficiently processed in an accurate and clean state.

  The flow of work when performing NC engraving with the plain tile 9A mounted on the grid 1 will be described with reference to FIG. In the method shown in FIG. 11A, a plain tile 9A is inserted into the grid 1 as shown in FIG. 11A, and the NC is applied to the plain tile 9A attached to the grid 1 as shown in FIG. Engrave. Of the tiles 9 attached to the grid 1 as shown in (c), the tiles 9 (9A and 9B) located on the outer periphery of the grid 1 are removed and temporarily placed on another grid 1 as shown in (e). The grid 1 from which the tiles 9 (9A and 9B) at the outer peripheral portion are removed can be connected to each other by tightening a connecting bolt with a screwdriver from the panel surface side as shown in FIG. After that, as shown in FIG. 11 (A) (d), the grid 1 from which the tiles 9 on the outer peripheral portion are removed is connected, and the tile temporarily placed in (e) is mounted, and the display panel of (f) Complete P.

  In the method shown in FIG. 11B, the plain tile 9A is inserted into the grid 1 as shown in (a), and the NC is applied to the plain tile 9A attached to the grid 1 as shown in (b). Engraving and / or printing. Among the tiles mounted on the grid 1 as shown in (b), the tile 9B that has been subjected to NC engraving and / or printing is temporarily placed on another grid 1 as shown in (c), and (d) As shown in FIG. 4, the plurality of grids 1 and 1 are connected to a required size by a separate process. Attach the engraving tile 9B temporarily placed in (c) to the grid connected to the required size in (d), and install the plain tile 9A on the other side 13 of the grid 1 To complete the display panel of (e).

In this way, when using the conventional grid connection structure that requires screwing work by a screwdriver from the surface direction of the grid 1, the engraved tile 9B that has been engraved and / or printed after the NC engraving and / or printing is performed. Temporary placement on another grid 1 and temporarily placed sculpted tile 9B or plain tile 9A must be remounted on the grid 1, resulting in poor work efficiency.
FIG. 8 shows a process in the case where the grids 1 with the tiles 9 attached can be connected. That is, in the process shown in FIG. 8, the connecting bolts are set at the four corners or necessary places of the grid as shown in (a), and the plain tiles 9A are placed on each of the narrow paths 13 of the grid 1 as shown in (b). With the plain tile 9A mounted on the grid 1, NC engraving and / or printing is performed as shown in FIG. Thereafter, as shown in (d), the grids 1 and 1 with the NC engraving and / or printing engraved tiles 9B and plain tiles 9A attached are connected to complete the display panel P of the desired size. .

As described above, in the grid connection structure of the prior art shown in FIG. 11, in order to complete NC display and / or printing by attaching a plain tile to the grid and finally complete a large display panel, at least the tile There was a drawback that work efficiency was poor because it was necessary to remove a part, temporarily place it, and put it back on. On the other hand, in the process shown in FIG. 8, it is not necessary to temporarily place the tile, and the working efficiency can be improved.
The present invention realizes a grid connection structure that enables the grids 1 to be connected in a state where the tiles 9 are mounted, and can efficiently assemble a mosaic display panel as in the process shown in FIG. It is intended.

The grid 1 applied in the present invention that achieves the above-mentioned object has a fixed size partitioned in a grid pattern by vertical and horizontal partition walls 2 and 3, and is annularly formed on both the front and back surfaces at the intersection of the partition walls 2 and 3. A connecting cylinder portion 4 provided with a protrusion 5 is provided, and the surrounding partition walls 2 ′ and 3 ′ are formed by dividing the thickness of the partition walls 2 and 3 including the connecting cylinder portion 4 into a plurality of parts. In the state where the grid 1 is combined, the surrounding partition walls 2 'and 3' are the same thickness as the other partition walls 2 and 3 with the surrounding partition walls 2 'and 3' of the adjacent grid 1, and The divided cylinder portions 4 ′ and 4 ′ are brought into contact with each other to form a connecting cylinder portion 4.

Then, a connecting bolt 6 is inserted into a connecting cylinder part around the grid formed by combining a plurality of grids 1, 1, and a short cylinder part 7 a formed on the bolt head 7 on the surface of the grid 1. Is fitted to the annular protrusion 5 of the connecting cylinder part 4 and the short cylinder part 8a formed on the nut 8 on the back surface of the grid 1 is fitted to the annular protrusion 5 of the connecting cylinder part. The grids 1 and 1 are connected by tightening.

In the structure for connecting the grid of the structure, the present invention forms a pin 11 for keeping is engaged the consolidated bolt 6 to the cylindrical portion 4 of the grid 1 in the bolt head 7 of the connecting bolt 6. That is, in a state where the short cylindrical portion 7a formed on the bolt head 7 of the connecting bolt 6 is fitted to the annular projection 5 of the connecting cylindrical portion 4 ′ located in the periphery of the grid 1, the connection is made. The bolt 6 is locked with a pin 11 formed on the bolt head 7.
At this time, the thickness T of the bolt head 7 of the connecting bolt 6 is formed to be smaller than the interval X between the upper end of the annular protrusion 5 of the grid 1 and the upper end of the protrusion 10 that becomes the bearing surface of the tile 9 (see FIG. 3). .

  In the present invention having the above-described structure, the grids 1 and 1 are connected to each other by connecting them to the cylinder parts 4 ′ and 4 ′ in the four-divided state located at the four corners of the grid 1 (1A) as shown in FIG. Bolts 6 and 6 are locked. That is, the short cylindrical portion 7a formed on the bolt head 7 of the connecting bolt 6 is fitted into the annular protrusion 5 of the cylindrical portion 4 ′ in a state of being divided into four parts. It will be in the state protruded from the outer periphery of the grid 1 (refer FIG. 5). At this time, tiles 9 and 9 are attached to the respective bottlenecks 13 and 13 of the grid 1 having a certain size.

Grids 1B, 1C, and 1D on which tiles 9 are mounted (not locking the connecting bolts) are attached to the portions where the connecting bolts 6 are locked. At this time, as shown in an enlarged view in FIG. 6, the cylinder portion 4 ′ in a state of being divided into four parts is inserted and brought into close contact with the lower side of the bolt head 7 of the connecting bolt 6 protruding outward, and FIG. By moving upward as indicated by the white arrow, the annular protrusion 5 at the upper end of the cylindrical portion 4 ′ can be fitted into the short cylindrical portion 7a. In this way, when four grids 1A, 1B, 1C, and 1D are connected, a large grid connected in all directions can be formed.
That is, from the back side of the grid 1 to which the connecting bolt 6 is locked, the short cylindrical portion 7a formed on the bolt head 7 of the connecting bolt 6 is connected to the short cylindrical portion 7a to be connected. The annular protrusion 5 of 'is fitted.

  At this time, the thickness T of the bolt head 7 is formed to be smaller than the interval X between the upper end of the annular protrusion 5 and the upper end of the protrusion 10 serving as the tile support surface. Therefore, even in a state where the tile 9 is mounted, the bolt head 7 protruding to the side of the grid is abutted by passing through the interval X portion, and the short cylinder portion 7a of the bolt head 7 is connected to the cylinder portion 4 ′. The ring-shaped protrusion 5 can be fitted.

  In a state where the short cylinder portion 7a formed on the bolt head 7 is fitted to the annular protrusion 5 of the cylinder portions 4 'and 4' on the surface side of the adjacent grids 1 and 1, the nut 8 is attached to the connecting bolt 6. The short cylinder portion 8a formed on the nut 8 is screwed and fitted to the annular protrusions 5 of the cylinder portions 4 'and 4' on the back surface of the grid 1, and then the connection between the grids 1 and 1 is completed. .

The grid is usually formed in the same shape as the front and back. In that case, when the nut 8 is screwed onto the connecting bolt 6 protruding from the back surface of the grid 1, the tile support surface of the grid 1 becomes an obstacle and the nut 8 cannot be rotated from the side. In order to cope with such a situation, when tightening the nut 8 , the tightening tool is engaged with the locking portions 12, 12 formed on the end surface in the axial direction of the nut , specifically, the front of the rotating tool like a screwdriver. it can tighten secured by Rukoto engaging the two claws 14, 14 to protrude.

  According to the grid connection structure of the mosaic display panel of the present invention, the grids can be connected with the tiles 9 attached to the grid 1. Therefore, when NC engraving and / or printing is performed with the tiles 9 and 9 attached to the entire surface of the grid 1, the NC engraved and / or printed tiles are removed and temporarily placed and connected as in the past. The mosaic display panel can be efficiently assembled without the need for a process of attaching it to the grid again.

FIG. 1 is a partially cut side view showing a tightening operation of a grid connection structure according to the present invention, FIG. 2 is a front view showing a combination of grids, 3 is a cross-sectional view taken along line AA and BB in FIG. FIG. 4 is a plan view showing an example of a grid and tiles. FIG. 5 is a plan view of a state in which a connecting bolt is attached to a grid on which a tile is attached, 6 is a plan view showing a state in which another grid is connected to the grid shown in FIG. FIG. 7 is a half sectional perspective view of a connecting bolt and nut, FIG. 8 is a schematic diagram showing a flow of grid connection work by the grid connection structure according to the present invention. FIG. 9 is a plan view showing the connection structure of the frame and grid of the display panel; FIG. 10 is a longitudinal sectional view showing an example of a conventional grid connection structure, FIG. 11 is a schematic diagram showing a flow of grid connection work according to a conventional grid connection structure; FIG. 12 is a plan view showing a connection structure between a frame and a grid of a display panel according to a conventional connection structure.

  The grid connection structure in the mosaic display panel of the present invention includes a step of locking the connection bolts 6 around the four corners of the grid 1 having a certain size or other than the four corners as shown in FIG. (b) a step of attaching the plain tile 9A to the grid lane 13 to which the connecting bolt 6 is locked, a processing step of NC engraving necessary patterns and symbols shown in (c), and (d) The large display panel P on which patterns and symbols are written is completed by connecting the grids 1 with the plain tiles 9A and the engraving tiles 9B attached thereto as shown in FIG.

  The grid 1 of the mosaic display panel is formed in a grid pattern by vertical and horizontal partition walls 2 and 3 as shown in 1C of FIG. 2, and a connecting cylinder part 4 is formed at the intersection of the partition walls. . The peripheral partition walls 2 ′ and 3 ′ are formed by dividing the thickness of the partition walls 2 and 3 including the cylinder portion 4 into two parts. As shown in FIG. Extending in the plane direction of the grid 1, a tip 10 is formed as a support surface of the tile 9 attached to the grid 1. The tile 9 to be mounted on the grid bottleneck 13 has a rectangular bowl-like shape, and has leg portions 15 and 15 facing the rear side on the side surface and the front side as the display surface. As shown in FIG. 4, the locking claw 15 a formed at the tip of the leg portion 15 engages with the back surfaces of the partition walls 2 and 3 of the grid 1.

  When the grids 1 and 1 are connected, there are cases where they are connected in four directions or in two directions depending on the size of the display panel. When the grids 1 and 1 are connected in four directions, the three grids are brought into contact with the grid in which the connection bolts 6 are locked, and the corners of the four grids are engaged and fixed to the connection bolts. In the case of connecting in two directions, one grid is engaged and fixed to the grid in which the connecting bolt 6 is locked. The connecting position of the grid 1 and the grid 1 is not limited to the corner portion, and the cylindrical portions 4 ′ and 4 ′ divided in the periphery of the grid may be connected and fixed by the connecting bolt 6.

  As shown in FIG. 7, the connecting bolt 6 used in the grid connecting structure according to the present invention is provided with pins 11 extending laterally from the outer peripheral surface of the bolt head 7 provided with the short cylindrical portion 7a. As shown in FIG. 3, the pin 11 has a short cylindrical portion 7a of the bolt head 7 fitted in an annular projection 5 formed on the cylindrical portion 4 of the grid as shown in FIG. Any one can be used as long as it can be locked to one cylindrical portion 4, and for example, a spring plate, a piano wire, or the like can be used.

  The thickness T of the bolt head 7 is formed to be smaller than the distance X between the upper end of the annular protrusion 5 and the upper end of the projection 10 that becomes the bearing surface of the tile 9 because the bolt head 7 has the distance X set to the distance X. It is for passing. Therefore, the thickness T and the interval of the bolt head 7 can be excellent in workability as the dimensional difference of X is larger.

  Below the front tile 9, the short cylinder portion 7 a formed on the bolt head 7 of the connecting bolt 6 is connected by fitting to the annular protrusions 5 formed on the cylinder portions of the adjacent grids 1, 1. State positioning is performed. The grids 1 and 1 can be fixed by tightening the nut 8 in this state. That is, as shown in FIG. 7, a short cylinder portion 8a is formed on a nut 8 screwed to a connecting bolt 6 in the same manner as the bolt head 7, and a plurality of grids 1, 1 adjacent to each other on the back surface are formed. It is fastened and fixed in a state in which it is fitted to the annular protrusion 5 formed on the cylindrical portion 4.

When the nut 8 is screwed to the connecting bolt 6 , in the illustrated embodiment, since the protrusion 10 is formed on the outer side of the cylindrical portion 4, the side of the nut 8 is tightened by, for example, a spanner. It cannot be rotated by an operation from. Therefore, the nuts are fastened and fixed by an operation on the axial end face of the nut. Specifically, a fastening tool is formed on the locking portions 12 and 12 formed on the end surface of the nut 8 in the axial direction, and specifically a tool 16 such as a screwdriver with two claws 14 and 14 protruding in front of the handle. Use and tighten.

The mosaic display panel realizes a display surface having a desired size by connecting a plurality of grids 1 and 1 having a predetermined size. As shown in FIG. 9, the grid 1 is made of aluminum. The display board is completed by fixing to a strong frame 17 such as a product.
In order to fix the grid 1 to the frame 17, the base end of the coronet 18 that is a connecting rod is fixed to the frame 17, and the tip of the coronet 18 is connected to the grid 1. The connecting bolt 6 is also used for connecting the grid 1 and the coronet 18.

FIG. 12 shows a conventional coronet mounting structure using connecting bolts, and FIG. 9 shows a coronet mounting structure using connecting bolts 6 of the connecting structure according to the present invention.
The conventional connecting bolt is screwed into the connecting bolt from the front of the grid 1 by a screwdriver. That is, the bolt head was tightened with a screwdriver. In order to fix the grid 1 to the frame 17 using this connecting bolt, the base end portion of the coronet 18 is fixed to the frame 17. Specifically, the base end portion of the coronet 18 is screwed to the square nut 20 inserted in the groove 19 of the frame 17 and positioned by the lock nut 21, and then the female screw formed at the tip of the coronet 18 is attached. The grid 1 is fixed to the frame 17 by screwing the tip of the connecting bolt. Even in this case, the work is performed with the tile 9 removed, and the defect that the tile 9 must be mounted after the work, the fixing work of the coronet on the back of the grid with respect to the frame 17, and the front of the grid 1 are performed. Therefore, the work of tightening the connecting bolt to the coronet is required, and the workability is poor.

  In the attachment structure of the coronet 18 using the connecting bolt 6 according to the present invention shown in FIG. 9, the bolt head of the slide bolt 22 is inserted into the groove 19 of the frame 17, and the coronet fixing nut 23 is attached to the frame at a predetermined position. Tighten and fix against. That is, the slide bolt 22 is a bolt having a bolt head having a thickness that slides in the groove 19 of the frame 17, and the coronet fixing nut 23 is a bag-like nut that is screwed to the slide bolt 22 and has a through hole 24. Has been drilled. At the base end of the coronet 18, a head that can be inserted into the coronet fixing nut 23 and does not pass through the through hole is formed, the shaft portion of the coronet is passed through the through hole, and the coronet fixing nut 23 at the base end portion. Is locked in a rotatable manner.

  That is, the coronet fixing nut 23 is locked to the base end portion of the coronet 18, and the coronet fixing nut 23 can be screwed to the slide bolt 22. Further, as shown in FIG. 9, a female screw 25 for screwing the connecting bolt 6 is formed at the tip of the coronet 18. A female screw 25 is formed at the tip of the coronet 18 and, at the same time, a short cylinder portion into which the annular projection of the grid is fitted is formed in the same manner as the nut of the connecting bolt 6.

  In the coronet mounting structure shown in FIG. 9, the coronet 18 and the grid 1 are fixed by rotating the coronet 18, and the coronet is fixed to the frame by rotating the coronet fixing nut. In this case, the work from the front of the grid 1 is not necessary, and the tile 9 does not need to be removed, and the fixing work can be performed efficiently. That is, the coronet and the grid can be fixed by rotating the coronet, and the coronet can be fixed at a predetermined position of the frame by rotating the coronet fixing nut. In other words, by loosening the coronet fixing nut, the coronet becomes free and the position can be changed. And all these operations can be done efficiently on the back of the grid.

DESCRIPTION OF SYMBOLS 1 ... Grid, 2, 3 ... Partition wall, 4 ... Cylindrical part, 5 ... Annular protrusion, 6 ... Connection bolt, 7 ... Bolt head, 7a ... Short cylinder part, 8 ... Nut, 8a ... Short cylinder part, 9 ... tile, 9A ... plain tile, 9B ... sculpture tile, 10 ... projection, 11 ... pin, 12 ... locking part, 13 ... bottleneck, 14 ... claw, 15 ... leg, 15a ... claw, 16 ... tool, 17 ... Frame, 18 ... Coronet, 19 ... Groove, 20 ... Square nut, 21 ... Lock nut, 22 ... Slide bolt, 23 ... Coronet fixing nut, 24 ... Through hole, 25 ... Female screw, P ... Display panel.

Claims (1)

On both sides at the intersection portion of the partition wall of a predetermined size of the grid is partitioned in a grid pattern by partition walls of the vertical and horizontal to form a cylindrical portion for coupling with the annular projection, the partition wall near For the connection including a cylindrical portion and a two-divided shape the thickness of the partition wall, by inserting the connecting bolt to the cylindrical portion for coupling around a grid which is formed in a tubular shape by Rukoto combining a plurality of grids, the grid surface The short cylinder part formed on the bolt head is fitted into the annular protrusion of the connecting cylinder part, and the short cylinder part formed on the nut on the back surface of the grid is fitted to the annular protrusion of the connecting cylinder part. In the structure to connect the grid by tightening the nut,
In order to lock the connecting bolt in a state in which the short cylindrical portion formed on the bolt head of the connecting bolt is fitted to the annular protrusion of the connecting cylindrical portion located in the periphery of the grid. Are formed on the bolt head of the connecting bolt, and the thickness of the bolt head of the connecting bolt is thinner than the dimension between the upper end of the connecting cylinder portion of the grid and the tile support surface of the grid. From the back side of the grid to which the bolts are locked, the ring-shaped projection of the connecting cylindrical portion of the grid to be connected is fitted into the short cylindrical portion formed on the bolt head of the connecting bolt, and the grid A grid connection structure in a mosaic panel type display panel , wherein the grid is connected by tightening a nut to a connection bolt projecting on the back surface of the display panel.

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