JPH0314697Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a signboard that is fixed to a wall, a pillar, or the like.

[Prior Art] This type of signboard has a backing member and a display board held by the backing member as its main elements, and the backing member is fixed to a wall surface, pillar, etc. by screws, pasting, or other appropriate means. It is often structured. In addition, if a box-shaped display board with an open back is used and the display board is screwed to the back member, corner support is provided integrally over the entire length of the end of the back member. In some cases, a holding means is employed in which a corner support portion is provided with an end portion of the side wall of the display board so as to fit outwardly, and a screw is screwed into the overlapped portion and tightened. In such a signboard, the corner support part is provided to strengthen the connection between the back member and the side wall of the display board using screws, and generally has a rectangular cross section.

[Problems to be solved by the invention] However, when extrusion molding the back member using synthetic resin, if the back plate and the corner support portion are simultaneously extruded from an extrusion molding die, the problem occurs in the extrusion direction (longitudinal direction of the back member). Warpage is likely to occur, and when a signboard is assembled using a backing member with such warpage, it is difficult to accurately position and screw the backing member and the display board together. Therefore, it is necessary to correct the warpage of the backing member to make it flat before use.
In this case, after screwing, an unreasonable force corresponding to the restoring force of the backing member is applied to the display board and the screwed parts, which may cause problems such as twisting of the entire signboard.

In addition, if the side wall of the display board is overlapped on the outer surface of the corner support part with a square cross section and a screw is screwed into the overlapped part and tightened, the corner support part has elasticity peculiar to synthetic resin, so the display board can be displayed easily. At the end of the side wall of the plate, only the area where the head of the screw is in contact may be locally strongly pressed against the corner support, causing a situation where the surrounding area may lift up from the corner support. If that happens, the so-called "effectiveness" of the screw will deteriorate. If the "effectiveness" of the screws remains in this way, the unreasonable force caused by the twisting of the entire signboard as described above will be applied to the joints made by the screws, causing the joints to wobble. There was a problem in that it was more likely to occur.

The present invention was developed in view of the above-mentioned inconveniences and problems, and includes a backing member with a structure that is less likely to cause warping due to extrusion molding, and a structure given to the backing member to make warping less likely to occur. Therefore, it is an object of the present invention to provide a signboard in which the "effectiveness" of the screws is improved when the end of the side wall of the display board is screwed to the corner support part.

[Means for Solving the Problems] The signboard of the present invention includes a backing member having a corner support part formed integrally with the backing board over the entire length of the end of the backing board, and an open backside. A box-shaped display board,
an L-shaped corner frame, the end of the side wall of the display board is externally fitted to the back member, and extends longitudinally onto the outer surface of the corner support portion of the back member overlapping the end of the side wall. a recess is formed, and an L-shaped corner frame is applied to the outside of the end of the side wall;
A screw is screwed into the recess of the corner support portion through the L-shaped corner frame and the side wall of the display board, and the L-shaped corner frame and the end of the side wall are tightened by the screw.

[Function] According to this invention, since the corner support portion is provided with a recess extending in the longitudinal direction, warpage is less likely to occur when the backing member is extruded. Therefore, the display board can be accurately positioned and screwed to the back member, and moreover, it is less likely that the entire signboard will be twisted after screwing.

Further, the screw is screwed into the recess of the corner support part through the L-shaped corner frame and the end of the side wall of the display board,
Since this screw tightens the L-shaped corner frame and the end of the side wall, the L-shaped corner frame pushed by the head of the screw slightly moves inward into the recess of the corner support. The side walls of the display board are pressed against the outer surfaces of both sides of the recess in the corner support part with a pressing force corresponding to the restoring force generated in the L-shaped corner frame due to the deformation, and the "effectiveness" of the screws is reduced. get well.

[Example] Figure 1 shows a back member 1 of a signboard according to an example of the present invention.
It shows. This backing member 1 includes a backing plate 2 having a predetermined width.
Corner support parts 3, 3 having a substantially rectangular cross section are provided over the entire length of both ends in the width direction. The back plate 2 and the corner supports 3, 3 are integrally molded by, for example, extruding and foaming polystyrene resin containing a foaming agent at the same time from an extrusion molding die. During this extrusion, recesses 31 extending in the longitudinal direction of the corner support section 3 are formed on the upper surface, lower surface, and outer surface of the corner support section 3, respectively.
The back member 1 thus extruded had no warpage in its longitudinal direction and maintained flatness over its entire length.

FIG. 32 shows a signboard 100 according to an embodiment of the present invention. The display board 110 of this signboard 100 is box-shaped with an open back surface, and its side wall 1
11 is externally fitted into a back member 1 of a predetermined size, and an L-shaped corner frame 200 made of metal, for example, aluminum is applied to the outside thereof. Then, a screw 300 is screwed into the recess 31 of the corner support part 3 through the L-shaped corner frame 200 and the side wall 111 of the display board 110.
The shaped corner frame 200 and the end of the side wall 111 are tightened. Note that a light source such as a light and other accessories are housed inside the signboard 100.

In the case of such a signboard 100, since the backing member 1 originally has a high degree of flatness over its entire length, the signboard 100 may be twisted after screwing, and undue force may be applied to the display board 110 or the screwed locations. When added, the situation like this is less likely to occur. Further, as shown in detail in FIG. 3, since the screw 300 is screwed into the recess 31 of the corner support part 3, the L-shaped corner frame 200 pushed by the head of the screw 300 is pushed into the corner support part 3. The end of the side wall 111 of the display board 110 deforms slightly inward of the recess, and the edge of the side wall 111 of the display board 110 deforms into the recess in the corner support part 3 with a pressing force corresponding to the restoring force generated on the L-shaped corner frame 200 due to the deformation. 31, thereby improving the "effectiveness" of the screw 300 and making it difficult for the screw 300 to loosen.

FIG. 4 shows a modification of the back member 1. This one differs from the one in FIG. 1 in that protrusions 40 are added at two locations on the back plate 2. This protrusion 40 is the back member 1
When fixing to a wall surface or a pillar with nails or screws, these fasteners can be passed through the protrusion 40 to ensure firm fixation.

[Effects of the invention] As described above, the invention has the effect that the end of the side wall of the display board is firmly joined to the corner support part of the backing member that does not have warp, and as a result, it can be used for a long time. To obtain a signboard in which a display board is held on a backing member without wobbling over a long period of time.

[Brief explanation of the drawing]

Fig. 1 is a partial perspective view of the backing member used in the signboard of the present invention, Fig. 2 is a sectional view of an embodiment of the invention, and Fig. 3
The figure is an enlarged sectional view of the main part of FIG. 2, and FIG. 4 is a sectional view showing a modification of the back member. DESCRIPTION OF SYMBOLS 1... Back member, 2... Back plate, 3... Corner support part, 31... Recess, 100... Signboard, 110...
Display board, 111...Side wall of display board, 200...L
Shape corner frame, 300...screws.

Claims (1)

[Claims for Utility Model Registration] A back member made of synthetic resin that is provided with a corner support part that is integrally molded with the back board over the entire length of the end of the back board, and a box-shaped display with an open back surface. a board and an L-shaped corner frame, the end of the side wall of the display board is externally fitted to the back member, and the outer surface of the corner support part of the back member overlapping the end of the side wall has a longitudinal length. A recess is formed extending in the direction, and a recess L is formed on the outside of the end of the side wall.
The corner frame is applied, and a screw is screwed into the recess of the corner support through the L-shaped corner frame and the side wall of the display board, and the screw connects the L-shaped corner frame and the end of the side wall. A signboard characterized by being tightened.