JPS6020138Y2 - 3D letters for signboards - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Use This invention relates to three-dimensional characters made of ergonomic resin used for signboards.

Conventional technology Conventionally, for three-dimensional characters for signboards, a face plate having the same shape as the foam layer is bonded to the surface of a foam layer made of synthetic resin of a predetermined thickness and cut into a predetermined character shape. Three-dimensional signboard letters are known that are configured such that the back surface contacts the base and is itself attached to the base.

This type of three-dimensional character can also be constructed by cutting out a foam layer and a surface plate into characters of the same shape and then joining them together, but this is inevitably a complicated process.

Therefore, in order to improve this, generally, in manufacturing, a wide and long foam layer of the same size and a surface plate are bonded in advance with an adhesive, and then the bonded integral plate is shaped into a predetermined character. It is known to be cut out into shapes.

The three-dimensional characters produced in this way only need to be cut out once, and there is no problem that the shapes of the characters on the foam layer and the surface plate are misaligned with each other.

Problems that the invention aims to solve However, with conventional three-dimensional letters like this, when attaching them to a base such as a sign board, it is difficult to attach them from behind the base with screws, which means screwing screws into the foam layer. Therefore, it is not possible to obtain the required mounting strength for the side bottom.

For this reason, the foam layer 2' is generally attached to the surface of the base B' with an adhesive, as shown in FIG. 6, but the adhesive surface of the foam layer 2' is rough. Not only is it practically difficult to uniformly apply a sufficient amount of adhesive to the rough surface during the manufacturing stage of the signboard, but also the three-dimensional characters 1' often touch the decorative surface plate 3' side. Since it tends to be convex and curved or warped, there is a problem in that it is difficult to obtain a flat bonding surface suitable for bonding.

Furthermore, in order to increase the bonding strength, it is necessary to attach the three-dimensional character 1' to the base B.
′, it is necessary to apply pressure for a certain period of time to maintain the pressed state, but since it takes time to maintain this state, it not only takes time to produce the signboard, but also reduces productivity. When three-dimensional letters are attached on-site to a concrete wall of a building, it may be virtually impossible to maintain the press-contact state for a certain period of time.

Due to these problems, in practice, in the case of the conventional three-dimensional characters 1' as described above, sufficient bonding strength cannot be obtained when attached to the base B', and when used, the conventional three-dimensional characters 1' cannot be attached to the base B'. It has the disadvantage that it is difficult to achieve complete installation, such as the risk of it falling off.

This invention does not have the above-mentioned drawbacks, and the manufacturing work is extremely quick and easy by cutting out a predetermined shape from a plate, and it can be attached to the base using any method such as screwing or gluing. The purpose of the present invention is to provide characters for signboards that can be easily and firmly attached using a fixing means.

As a means to solve the problem, this invention is based on a foam layer made of closed-cell synthetic resin foam, with a decorative surface plate on one side and a hard synthetic resin on the other side. Abstract: Three-dimensional characters for signboards made of synthetic resin, which are cut out into a predetermined character shape using a laminated monolithic plate in which mounting fixing plates with a thickness of 0.5 to 2.0 wIX are integrally joined via adhesive. That is.

Example Embodiments of this invention will be described below with reference to the drawings.

In addition, in this invention, 1 character yo refers to kanji, kana characters,
It includes numbers, alphabets, etc., as well as various shapes, symbols, patterns, etc.

In FIG. 1, 1 indicates the three-dimensional character of this invention, and a decorative surface plate 3 is on one side (front side) of the foam layer 2, and a mounting fixing plate 4 is applied with adhesive 5 on the other side (back side). The fixing plate 4 has a structure in which it is integrally joined through a cutout in a predetermined character shape, and the back surface of the fixing plate 4 is fixed to the base B.

For the foam layer 2, a synthetic resin foam such as polyethylene, polystyrene, polyvinyl chloride, EVA, or polyurethane is used, but when used outdoors, open-cell foam is not suitable to avoid rainwater absorption. and closed cell foam should be used.

In addition, among the foams exemplified, the foam layer 2 has characteristics such as its own strength, heat resistance when used outdoors, light resistance, water resistance, and solvent resistance to organic solvents contained in adhesives. E in terms of dyeability when coloring is required, whiteness of itself, and elasticity necessary to quickly recover from deformation caused by external forces such as impact.
Most preferably, VA foam is used.

The thickness of the foam layer is usually around 10TIrIIt.

As the decorative surface plate 3, for example, a hard polyvinyl chloride plate, a polymethyl methacrylate plate, or a laminate of these and a metal plate is used.

In particular, the surface area 3 may be colored in a color different from that of the foam layer 2 in order to enhance the display effect of the three-dimensional characters, thereby producing a color effect.

Also, for example, a metal plate such as an aluminum plate (for example, a thickness of 0
．． A so-called laminate plate is made of a so-called laminate plate, in which the front surface of the laminate is covered with a colored transparent polyvinyl chloride plate (for example, about 0.75 mm), and the back side is covered with an opaque polyvinyl chloride plate (for example, about 0.7 mm thick). When a transparent colored polyvinyl chloride plate is used as a display surface, beautiful and luxurious three-dimensional characters with a colored metallic luster can be obtained.

The thickness of the surface plate used is usually around 2.0rrvn.

The fixing plate 4 for installation is made of a hard synthetic resin plate, preferably a polyvinyl chloride plate, but it must be strong enough to prevent cracking by screwing when attaching the three-dimensional characters, which will be described later. If it is durable and can be firmly fixed,
The synthetic resin plate used for the surface plate 3 or other materials may be used.

Here, the thickness of the fixing plate 4 should be in the range of about 0.5 to 2.-2.

That is, 0.5rIr! If the thickness is less than n, and if it is attached to a base using screws (see Figure 3), there is a high risk that the fixing plate itself will crack due to the screws and sufficient screw strength will not be obtained. Furthermore, even when bonding to the base side with an adhesive, if a solvent-based adhesive is used, there is a risk that the fixing plate may be melted and deformed, causing problems in bonding.

Furthermore, when a part of the fixing plate is partially adhesively fixed to the base side using an adhesive (for example, as shown in FIGS. 4 and 5), the three-dimensional characters 1 are attached to the surface plate 3 side. This may cause problems such as bending into a convex shape or deformation due to wind pressure.

On the other hand, when the thickness of the fixed plate 4 is made thicker than 2.0 rtts, even though the original function of the fixed plate 4 cannot be expected to be particularly improved, In addition to the difficulty of cutting out and manufacturing the three-dimensional characters and the relatively high material cost of the fixing plate, there is also the disadvantage that the three-dimensional characters 1 become heavier and the strength required for their installation increases. , rather harmful and practically useless.

As the adhesive 5 for bonding the foam layer 2 to the surface plate 3 and fixing plate 4, a commercially available neoprene adhesive, nitrile rubber adhesive, or the like is used.

In order to join them together, the adhesive 5 is applied to the joint surfaces of the wide and long foam layer 2, the surface plate 3, and the fixing plate 4, each having the same dimensions, by means of spraying, etc. 0.5 to 1.0 kg/cyl in flat state! Apply pressure to bond uniformly.

The laminated monolithic board bonded in this way has a strong bond, and the surface plate 3 and fixing plate 4 are evenly bonded to both sides of the foam layer 2 in a flat state. Unlike the conventional one-piece plate consisting only of a face plate, the face plate does not become convex and curve and lose its flatness.

The integral board thus obtained can be cut out into a three-dimensional character having a predetermined character shape by cutting out the foam layer 2, the surface plate 3, and the fixing plate 4 all at once using a common jig saw. The three-dimensional character 1 still maintains flatness.

Next, to attach the three-dimensional characters 1 to the base, if the base B is a body made of polyvinyl chloride, attach the fixing plate 4 (for example, made of polyvinyl chloride) to the sign body B1 as shown in Figure 2.
If the base B is made of a material different from that of the fixing plate 4, such as a steel plate or plywood, the base B2 is fixed by bonding it with a solvent-based adhesive 6. Pass the screws 7 through the fixing plate 4 from the back side of the base B and fix it.
If is concrete wall B3, as shown in Figure 4,
A fixing piece 8 made of the same material as the fixing plate 4 (for example, polyvinyl chloride)
(e.g. polyvinyl chloride) Fixing fittings such as leg studs 9
The fixing plate 4 is fixed to the surface of the fixing piece 8 by bonding it with a solvent-based adhesive 6.
Furthermore, if the base B and the three-dimensional character 1 are to be mounted apart from each other so that they do not come into contact with each other, as shown in FIG. Bolts and nuts are attached using metal fittings 11, and a fixing plate 4 (for example, polyvinyl chloride) of the three-dimensional characters 1 is bonded and fixed to the other side with a solvent-based adhesive 6.

Note that the various ways of attaching the three-dimensional character 1 described above are merely examples, and any means may be used as long as the fixing plate 4 of the three-dimensional character 1 can be fixed. If the fixing plate 4 can be fixed by any means, the three-dimensional character 1 can be easily and firmly attached to the base B directly or indirectly.

Effects of the invention As mentioned above, the three-dimensional letters of this invention are made by using adhesive on one side of the closed-cell foam layer and a decorative surface plate on the other side, and a fixing plate made of hard synthetic resin on the other side. Since it is made of a laminated monolithic plate that is integrally joined through a laminate, the fabrication of this monolithic plate requires applying a sufficient amount of adhesive at the factory and maintaining a pressurized state for a sufficient period of time. This not only allows for sufficiently strong bonding of the surface plate and fixing plate to the foam layer, but also allows for the creation of three-dimensional characters by cutting out predetermined character shapes from this integrated board extremely quickly and easily. In addition to being excellent in productivity, the character shapes of the foam layer and the surface plate do not shift from each other, unlike in the conventional case where the foam layer and the surface plate are made separately and bonded together.

In addition, as an improvement on the conventional method, a wide and long foam layer of the same size and a surface plate are bonded in advance via adhesive, and the integrated plate is cut out in a predetermined character shape. Rather than attaching the rough surface of the layer using adhesive, the fixing plate made of hard synthetic resin with a thickness of 0.5 to 2.0 mm is attached using adhesive or fixing fittings such as screws, so the installation is easy. It is strong and extremely simple.

Moreover, the 3D letters of this invention can be attached not only in close contact with the base, but also can be installed with the 3D letters separated from the base, making it possible to construct a variety of signboards. The three-dimensional display effect of the signboard can be further enhanced.

Furthermore, in the three-dimensional letters of this invention, since the fixing plate is integrated with the foam layer, it is also possible to create three-dimensional letters that look like sculptures by partially scraping off the top plate and the foam layer on the side closer to the top plate. This makes it possible to construct even more interesting signboards.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a three-dimensional character showing an embodiment of this invention, FIGS. 2 to 5 are cross-sectional views showing the various mounting states of the three-dimensional character of this invention, and FIG. is a sectional view showing how conventional three-dimensional characters are attached. B... Base, 1... Three-dimensional characters, 2...
... Foam layer, 3 ... Decorative surface plate, 4 ...
...Fixing plate for mounting, 5...Adhesive.

Claims (1)

[Scope of utility model registration request] A decorative surface plate is placed on one side of the foam layer made of closed-cell synthetic resin foam, and a mounting fixing plate with a thickness of 0.5 to 2.0 ribs made of hard synthetic resin is placed on the other side. , three-dimensional characters for signboards made of synthetic resin, each cut out into a predetermined character shape using laminated monolithic boards that are integrally joined via adhesive.