JP3023107B1 - Framed panel that can be framed from the front side - Google Patents

Abstract

Abstract: [Problem] A work can be easily loaded from the front side with a picture frame hung on a wall, works can be quickly and easily replaced, and the picture frame is lightweight, and is not damaged or injured even if dropped. To provide a good looking and cheap picture frame that can be easily hung. SOLUTION: A frame 1 made of expanded polystyrene.
And a frame panel comprising a cradle panel 11 and a hard transparent film 31. The back surface of the frame 1 is composed of a protruding rim 2, a concave groove 3 and a pressing surface 5 which protrude to the back side around the frame. The panel 11 has a fitting ridge 12 fitted on the inner peripheral wall surface 4 of the ridge 2 of the frame 1 and fitted with the concave groove 3 of the frame 1, and a work 41 is placed thereon. It comprises a mounting panel 13 on which a hard transparent film 31 is inserted.
The rear surface 14 has a long groove hole 15 for inserting a locking pin formed from the rear surface 14 sideways or vertically symmetrically along the inner side of the fitting ridge 12, and is formed in each outer peripheral wall surface 16 of the receiving panel 11. Are formed with the thin ribs 17 to form the ribs 2 on the frame 1
In a tightly fitted state with each inner peripheral wall 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a picture frame in which a picture, a photograph, or the like is inserted, installed on a wall, and displayed.

[0002]

2. Description of the Related Art Conventionally, when a picture or a photograph is displayed, it is installed on a wall at a height of a viewer's eye for the convenience of a viewer. In this case, they are put in a frame suitable for the paintings, photographs, etc. to be displayed, or are made into panels. Such frames and panels are various from decorative ones to simple frames, from expensive ones to inexpensive ones, and are simply veneer panels and the like. Furthermore, in elementary schools and kindergartens, there are also stickers on which painting paper is drawn directly on the wall for display with push pins. Even in the case of displaying paintings drawn by children or students in this way, if they are displayed in a frame, the paintings stand out and the damage to the paintings is reduced.

However, as described above, the picture frame is expensive, and when the picture frame is heavy, it is necessary to pay attention to the structure of the wall body that can withstand the weight. It may be broken or cracked, and may hurt if dropped on a person. In addition, when a large number of children, students, or elderly works are presented and exhibited at elementary schools, kindergartens or community-based presentations such as the senior citizens' association, etc., many of those works are inserted into the frame. It took a lot of time to work. For example, in the case of conventional frames, set the work by removing the holding panel such as plywood on the back of the frame by turning the holding claw and inserting it from the back,
When the setting is completed, insert the holding panel again, turn the holding claw to hold it down, further drive a support bracket such as an L-shaped bracket on the wall surface, provide two places for hanging the string on the back side of the frame, hang the string, The strings were hung on metal fittings to decorate the picture frame on the wall. However, the time and labor for removing and attaching the back cover of such a frame is burdensome and not easy. Furthermore, when loading the work from behind the picture frame as described above, it is difficult to place the work in the correct position without biasing or tilting because it is closed with an opaque holding plate, and it is difficult to view it from the front side after loading. For the first time, he knew the bias and inclination of the work, and had to repeat the loading of the work again by removing the holding plate. From the above, it was not easy for children to put their own work in the picture frame.

Further, when a picture such as a calendar is to be inserted into a picture frame to decorate the picture frame, a particularly expensive picture frame cannot be used, and a picture frame which is inexpensive, can be used easily and has a good appearance has been demanded.

[0005] In response to such a frame, a frame made of foamed polystyrene has been developed, and the applicant has already proposed it in Japanese Utility Model Laid-Open No. 6-9552. And, in the invention of Japanese Utility Model Laid-Open No. 6-9552 of the applicant, it is a frame in which a work can be inserted from the front side. However, in this publication, works can be loaded from the front side, but when loading works, the frame hanging on the wall must be removed from the wall, leaving the frame hanging on the wall from the front side The work could not be loaded or exchanged and did not respond to a quick change of work.

[0006]

The problem to be solved by the present invention is to solve the above-mentioned problems, to allow a work to be easily loaded from the front side while the frame is hung on a wall, and for the work to be performed quickly and easily. It can be interchanged, no effort is required to load the work, the frame is lightweight and even if it falls, it can be easily hung on the wall without damaging the objects under it or injuring people, and it looks good Is to provide a frame with low cost.

[0007]

According to a first aspect of the present invention, there is provided a method as set forth in the first aspect, wherein the specific gravity is set at 0.
A frame 1 made of a lightweight hard material of 04 to 0.2;
A pedestal panel 11 formed of a lightweight hard material having a specific gravity of 0.04 to 0.2 and fitted to the frame 1, and a hard insert inserted between the back surface of the frame 1 and the surface of the pedestal panel 11. A framed panel composed of a transparent film 31, wherein the back surface of the frame 1 is a convex ridge 2 protruding rearward on the outermost periphery and a concave concave to the front side along the inner peripheral wall surface 4 of the convex rim 2. Groove 3 and hard transparent film 31 inside groove 3 and works 4 such as paintings and photographs
1, which comprises a pressing surface 5 that comes into contact with a receiving panel 11 via the receiving frame 1, the receiving panel 11 is fitted to the inner peripheral wall surface 4 of the protruding rim 2 of the frame 1, and a framed frame around the surface. 1 and a work panel 41 on which a work 41 and a hard transparent film 31 are placed. It has a long slot hole 15 for inserting a locking pin formed from the back surface 14 sideways or vertically symmetrically along the inside of the strip 12,
The outer peripheral wall 16 has a thin rib 17 on each side.
A framed panel that can be framed from the front side, characterized in that it is formed in three rows and is tightly fitted to each inner peripheral wall surface 4 of the projected rim 2 of the frame frame 1.

According to the second aspect of the present invention, the mounting panel 13 is
At the center thereof, there is provided an outer concave fitting portion 18 formed of a slightly smaller diameter size having a depth of 3 mm, and a further smaller diameter size of 3 mm at the center of the outer concave fitting portion 18.
An intermediate concave fitting portion 19 is formed by dropping, and an inner concave fitting portion 20 is further formed at the center of the intermediate concave fitting portion 19 by a drop of 3 mm in depth having a small diameter. The outer fitting plate 23 having a thickness of 3 mm large enough to be fitted to the inner fitting portion 18, the intermediate fitting plate 22 having a thickness 3 mm large enough to be fitted to the intermediate concave fitting portion 19, and the inner concave fitting portion 20. A framed panel capable of being framed from the front side according to the means of claim 1, characterized in that it has an inner fitting plate 21 having a thickness of 3 mm and a size.

According to the third aspect of the present invention, the specific gravity is 0.04 to 0.04.
3. The framed panel according to claim 1, wherein the lightweight hard material of 0.2 is expanded polystyrene having an expansion ratio of 10 to 25 times.

According to the fourth aspect of the present invention, the specific gravity is 0.04 to
The framed panel according to claim 1 or 2, wherein the lightweight hard material of 0.2 is a foam synthetic material made of wood chips, such as polypropylene or polyethylene, a molding fusion material, and a foaming agent.

According to the fifth aspect of the present invention, the specific gravity is 0.04 to 0.04.
The light weight hard material of 0.2 is a natural balsa material, and is a framed panel that can be framed from the front side in the means of claim 1 or 2.

According to a sixth aspect of the present invention, there is provided a framed panel capable of being framed from the front side according to the first or second aspect, wherein the projecting ribs 17 projecting thinly have an amount of projection of 1 to 2 mm. .

According to the seventh aspect of the present invention, the thin ribs 17 are provided.
3. The panel according to claim 1 or 2, wherein the thin wall height of the outer peripheral wall 16 is gradually increased in a tapered shape from the front side and becomes 1 to 2 mm on the back side. .

According to the invention of claim 8, the hard transparent film 3
A framed panel 1 is a rigid transparent film made of polyethylene terephthalate and can be framed from the front side in the means of claim 1 or 2.

In the third aspect of the present invention, the expansion ratio of the expanded polystyrene is particularly preferably 13 to 17 times in view of strength and texture.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view schematically showing a framed panel according to the present invention. As shown in the figure, the framed panel is placed on the cradle panel 11 and a work 41 such as a picture or a photograph stored in the cradle panel 11 and a hard transparent film 31 for protecting the work is sandwiched from above. It consists of a frame 1 to hold. The frame 1 and the cradle panel 11 are made of a lightweight hard material having a specific gravity of 0.04 to 0.2. Such a specific gravity is 0.04-0.
The lightweight hard material of No. 2 is preferably a material with a magnification of 10 to 25.
It is made of expanded polystyrene foamed by heating at a ratio of 13 times to 17 times, preferably 15 times, and is integrally molded by foaming. Foamed polystyrene has a low unit price and is suitable for decorating many pictures of children and the like. Instead of expanded polystyrene, a foam such as expanded polypropylene or expanded polyethylene may be used. The term “hardness of a lightweight hard material” in the present specification refers to a material having a hardness that can maintain the rigidity that can maintain the shape as a structure, and a material that cannot be easily bent by elasticity like a soft material. As the lightweight hard material in the present invention,
In addition to the above foam, in the invention of claim 3, a foaming agent is mixed with a mixture of a pulverized wood material such as sawdust or a wood chip and a molding fusion material such as polypropylene or polyethylene, followed by heating and foaming. In this case, it is a material having a woody texture. Furthermore, as the lightweight hard material in the present invention, natural balsa material is used in the invention of claim 4, and the natural balsa material used in the present invention has a specific gravity of about 0.02. When using is not only lightweight,
Since it is wood, its woody texture is more suitable.
Further, in order to protect the surface of a work 41 such as a painting or a photograph when framed, a hard transparent film 31 is used in the present invention as an alternative to a normal framed glass. This hard transparent film 31 is polyethylene terephthalate, so-called PET, but is usually called A-PET. However, the film is not limited to PET, and may be a hard transparent film made of polypropylene. Polycarbonate can also be used as a hard transparent film, but the cost is high, so it is not cost-effective to decorate children's paintings at low cost.

The framed panel of the present invention composed of the above-mentioned materials is extremely lightweight. For example, when a foamed polystyrene foamed 15 times is used as a lightweight hard material and an A-PET film is used as a hard transparent film, it is divided into eight pieces. In the case of a framed panel on which a work 41 of a size is mounted, its weight is 180
It is about gram. Therefore, even if this framed panel is dropped on an object such as a vase, the object will not be damaged by the fall. It will not be injured if dropped on human feet.

Further, the structure of the present invention will be described in more detail. In the embodiment of the present invention, as shown in FIGS. 2 and 3, the frame 1 is made of, for example, an integrally molded foamed polystyrene foamed 15 times in a rectangular frame. I do. 2A is a schematic view of the frame 1 viewed from the front side, and FIG.
FIG. 4 is a cross-sectional view taken along a line. FIG. 3 shows a frame 1
FIG. 3 is a schematic view of the back side. Although the front surface of the frame 1 is formed as a simple flat surface in the drawing, a decorative pattern can be formed by adding a pattern to a molding die. The size of the picture frame 1 on which the work 41 of a picture or a photograph of an eight-cut size is mounted is 35.5 mm in height and 44.5 mm in width on the outer peripheral wall side, and 28.3 mm in height and 37.3 mm in width on the inner peripheral wall side. 3 mm. The width of each frame constituting each side of the rectangular shape is 35 mm, and its thickness is 30 mm. The back surface of the frame 1 has a protruding rim 2 having a width of 10 mm protruding to the back side at the outermost portion thereof. The outer peripheral wall surface 16 of the cradle panel 11 that receives a picture or a photograph mounted on the inner peripheral wall surface 4 is fitted into the convex rim 2. The size of the inner peripheral wall surface 4 of the ridge 2 is 3
3.25 mm, width 42.25 mm. A concave groove 3 is formed along the inner peripheral wall surface 4 of the protruding rim 2 on the front side of the frame 1 in a rectangular shape. The groove width of the groove 3 is 8 mm, and the depth of the groove 3 is 21 mm from the rear end of the ridge 2. A holding surface 5 having a height of 8 mm from the bottom of the groove 3 is formed inside the groove, and the width of the holding surface 5 is 17 mm. Therefore, the height of the pressing surface 5 from the front side of the frame 1 is 17 mm. The pressing surface 5 comes into contact with the cradle panel 11 via the hard transparent film 31 and a work 41 such as a painting or a photograph. Since foamed polystyrene is usually white, the front side of the frame 1 is appropriately colored with a water-soluble paint,
For example, it is colored marble or gray. Most of the raw material beads before foaming of polystyrene foam are colored in different colors. After pre-foaming for each single color, they are uniformly mixed with each other and foamed to form a mixture. A colored foam can be obtained, and when doing so, there is no need to dare to color later.

Next, the cradle panel 1 on which the work 41 such as a picture or a photograph to be fitted to the frame 1 is placed and mounted.
1 will be described. 4A and 4B are schematic diagrams of the cradle panel 11, in which FIG. 4A is a view as viewed from the front side of the cradle panel 11, and FIG. 4B is a cross-sectional view of the cradle panel 11 taken along line XX. (C) is a sectional view of another embodiment in which the convex rib is formed in a tapered shape. The size of the cradle panel 11 on which the work 41 of the eight-cut size is mounted is 33.2 mm in length,
The width is 44.2 mm. Therefore, the cradle panel 11 can be fitted to the inner peripheral wall surface 4 of the protruding rim 2 of the frame 1. By forming two to three convex ribs having a height of 1 to 2 mm on each wall surface of the outer peripheral wall surface 16 of the cradle panel 11, the inner peripheral wall surface 4 of the convex rim 2 of the frame 1 is formed. The engagement can be more tightened. In still another embodiment, as shown in FIG. 4C, the thin ridge rib 17 is formed such that the thin wall height of the outer peripheral wall surface 16 gradually increases in a tapered shape from the front side to 1-2 m on the back side. Height. As described above, the outer side wall surface 16 has a small thickness 0
The receiving panel 11 can be easily fitted to the frame 1 by forming the convex ribs 17 having a tapered thickness from mm. In these embodiments, three convex ribs are formed on the horizontal side of the cradle panel 11 and two convex ribs are formed on the vertical side, so that the frame 1 and the cradle panel abut barely over the entire surface. However, since only two or more ribs are in contact with each other, it is easy to remove them, and the frame 41 can be easily removed from the frame panel 1 by removing the frame 1 from the front side.

Further, a fitting ridge 12 is formed around the front side of the receiving panel 11 so as to fit into the concave groove 3 of the frame 1. The width of the fitting ridge 12 is 7.3 mm, and the height thereof is 20 mm as the height of the outer peripheral wall 16 of the receiving panel 11. The height is 7 mm. Mounting panel 1 inside fitting ridge 12
3 is the size of a work 41 such as a painting or a photograph to be attached.
In this embodiment, the work 41 has a size of eight slices, and the size of the inside of the fitting ridge 12 is 31.8 mm in length and 4 in width.
0.8 mm. On the back surface of the receiving panel 11, a long groove hole 15 for inserting a locking pin is formed on the back surface 14 of the mounting panel 13 symmetrically left and right or up and down along the inside of the fitting ridge 12.
Having. In this embodiment, the long slot 15 penetrates from the back surface 14 side to the front surface side. The width of the slot 15 is 8 m.
m, in the lateral direction of the cradle panel 11, the length of the long slot 15 is 130 mm, and the left and right symmetric two long slots 15 having the starting end of the slot at a position shifted 32.5 mm from the center in the horizontal direction.
Consists of In the longitudinal direction of the cradle panel 11, the long slot hole 15 has a length of 95 mm and is shifted 22.5 mm from the center in the horizontal direction.
Consists of five. Pin heads projecting from the wall surfaces of two left and right locking pins 51 (shown in FIG. 7) screwed into the wall surface are inserted into the long groove holes 15, and the receiving panel 11 is hung on the wall surface. The above-mentioned locking pin 51 used for suspending the cradle panel 11 on a wall surface is a threaded push pin according to the invention which has already been registered by the applicant as Utility Model Registration No. 3039296. The finger-turning head is connected to the locking pin 5 described above.
1 is a pin head protruding from the wall surface.

The mounting panel 13 is placed between the holding surface 5 inside the concave groove 3 on the back side of the frame 1 and the mounting panel 13 inside the fitting ridge 12 of the receiving panel 11. Placed work 4
1 and a hard transparent film 31 is further placed on them. Hard transparent film 3 of the present embodiment
Reference numeral 1 denotes a film made of A-PET as described above.
1.6 mm and its thickness is 0.4 mm.

FIG. 5 is a cross-sectional view of the framed panel of the present invention, in which the work 41 and the hard transparent film 31 are omitted for convenience of explanation, and the receiving panel 11 is fitted to the frame 1. FIG.

By the way, the pedestal panel 11 for the work of the eight-piece size is not exclusively used for the eight-piece, but for example, the post-size No. 1: 150 mm × 105 mm, or the double size of the post-size No. 2: 210 mm × 150 mm, , And twice that 4
No .: Common cradle panel 11 capable of loading works of four different sizes including works of 300 mm x 210 mm
FIG. 6 shows an embodiment according to the second aspect of the present invention. (A) is a plan view seen from the front side,
(C) is a sectional view taken along line XX. In other words, an outer concave fitting portion 18 is formed in the center of the mounting panel 13 of the cradle panel 11 for a work of eight-piece size, which is a size 4 size and has a depth of 3 mm, and the outer concave fitting portion 18 is formed. At the center, an intermediate concave fitting portion 19 is formed, which is formed of a size 2 and has a depth of 3 mm, and further, the center of the intermediate concave fitting portion 19 is formed of a size 3 of a size 1 and which has a depth of 3 mm. A recess 20 is provided. Then, as shown in the cross section of FIG. 6B, an inner fitting plate 21 having a size of No. 1 having a thickness of 3 mm, an intermediate fitting plate 22 having a size of No. 2 having a thickness of 3 mm, and 4 The outer fitting plate 23 having a thickness of 3 mm and the size of the size is formed of cardboard. Other structures of the cradle panel 11 are the same as those described above. Then, when the work 41 of the eight-cut size is mounted, the above-mentioned three inner fitting plates 21 and the middle fitting plate 2 are attached.
2 and the outer fitting plate 23 are fitted into the respective droppings, and a work 41 of an eight-cut size is placed. When mounting the No. 4 size work, remove only the outer mounting plate 23 from the outer concave fitting portion 18 among the three mounting plates described above, and place the No. 4 size work on the outer concave fitting portion 18. I do. When a work of size 2 is mounted, the outer fitting plate 23 and the middle fitting plate 22 are removed from the outer fitting portion 18 and the middle fitting portion 19 among the three fitting plates, and the middle recessed portion is removed. A work of size 2 is placed on the fitting portion 19. Further, when the first size work is mounted, all of the three outer fitting plates 23, the middle fitting plate 22, and the inner fitting plate 21 are connected to the outer concave fitting portion 18,
The first size work is placed on the inner concave fitting portion 20 after being removed from the intermediate concave fitting portion 19 and the inner concave fitting portion 20. When the work 41 is placed on the cradle panel 11 as described above,
A hard transparent film 31 of eight-section size is further placed on the work 41 placed on the receiving panel 11, and the frame 1 is fitted as shown by an arrow in FIG.

The construction of the present invention is as described above. FIG. 7 shows a cross-section of a structure for mounting a work on a framed panel of the present invention and attaching it to a wall. As shown in FIG.
The framed panel 1 having the frame 1 mounted on the frame 1 has two pin grooves projecting from the wall surface 61 of the two locking pins 51 screwed to the wall, and having two symmetrical long grooves on the upper side of the receiving panel 11. Put it in the hole 15 and hang it on the wall. In this case, as shown in FIG. 1, in the present invention, the work 41 is placed on the cradle panel 11, the hard transparent film 31 is placed thereon, the frame 1 is fitted, and the work 41 can be hung on the wall. The most characteristic feature of the present invention is that, first, the left and right symmetrical long slot holes 15 on the back side of the receiving panel 11 are suspended through the pin heads of two locking pins 51 screwed to the wall surface, and the suspension is performed. The work 41 is mounted on the mounting panel 13 of the cradle panel 11, and the hard transparent film 31 is mounted thereon.
The picture can be put in the framed panel and decorated by fitting the frame. Also, when replacing this work with another work, the framed panel, that is, the cradle panel 11, is hung on the wall,
The frame 1 is removed from the cradle panel 11, the hard transparent panel 31 is removed, the work 41 is replaced, and the frame 1 is fitted to the frame 1 as described above.

Since the framed panel of the present invention is very lightweight, it can be hung simply by hanging the long slot 15 on the locking pin 51 screwed into the wall. This makes it possible to decorate a work very easily and quickly. it can.

When the locking pin 51 cannot be screwed into the wall, one of the touch-close type fasteners having the adhesive tape on the back side, that is, one of the planar fasteners, is attached to the back side of the receiving panel 11 of the framed panel. By attaching the other of the planar fasteners to the wall surface, the framed panel of the present invention can be easily attached to the wall surface.

[0027]

As described above, the framed panel of the present invention is lightweight, can be easily and quickly hung on a wall, and allows works such as paintings and photographs to be easily and easily mounted from the front side. It is possible to change the work while the framed panel is hung on the wall, and it is easy to check whether there is a deviation of the work in the picture frame because it is installed while looking at the work, it can be mounted in the correct position, size Different works can be shared and installed, and the frame is lightweight, so it will not be damaged and injured people even if dropped, and the cost is low, so exhibitions such as paintings of children and students or senior citizens' associations It has the effect that even if a large number of pictures are displayed, there is no cost and labor.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view schematically showing a framed panel according to the present invention.

FIG. 2 is a view schematically showing a frame frame according to the present invention;
(A) is a plan view of the picture frame viewed from the front side, and (b) is a cross-sectional view of the picture taken along line XX.

FIG. 3 is a schematic view of the frame frame according to the present invention as viewed from the back side.

FIG. 4 is a schematic view of a cradle panel according to the present invention;
FIG. 2 is a plan view as viewed from the front side of the cradle panel, and FIG. 2B is a cross-sectional view taken along line XX. (C) is a sectional view of another embodiment.

FIG. 5 is a sectional view of a framed panel according to the present invention.

FIGS. 6A and 6B are schematic views of another embodiment of the receiving panel according to the present invention, wherein FIG. 6A is a plan view as viewed from the front side of the receiving panel, FIG. c) is a cross-sectional view of the cradle panel cut along line XX.

FIG. 7 is a cross-sectional view schematically showing a state where the framed panel of the present invention is mounted on a wall surface.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 frame frame 2 convex rim 3 concave groove 4 inner peripheral wall surface 5 holding surface 11 receiving panel 12 fitting convex rim 13 mounting panel 14 back surface 15 long slot 16 outer peripheral wall surface 17 convex rib 18 outer concave fitting portion 19 Intermediate recessed portion 20 Inner recessed portion 21 Inner fitting plate 22 Intermediate fitting plate 22 Outer fitting plate 31 Hard transparent film 41 Work 51 Locking pin 61 Wall surface

Claims (8)

(57) [Claims] 1. A frame 1 made of a lightweight hard material having a specific gravity of 0.04 to 0.2 and a lightweight hard material having a specific gravity of 0.04 to 0.2 to be fitted to the frame 1. And a hard transparent film 31 inserted between the back surface of the frame frame 1 and the surface of the frame panel 11, wherein the back surface of the frame frame 1 is the outermost periphery. The protruding ridge 2 protruding to the back side, the concave groove 3 recessed to the front side along the inner peripheral wall surface 4 of the convex ridge 2, and the hard transparent film 31 inside the concave groove 3
And a pressing surface 5 that comes into contact with the cradle panel 11 via a work 41 such as a painting or a photograph, and the cradle panel 11 is fitted on the inner peripheral wall surface 4 of the protruding rim 2 of the frame 1 and And a mounting panel 13 on which a work 41 and a hard transparent film 31 are placed around the fitting ridge 12 which fits into the concave groove 3 of the frame frame 1 around the surface. Back 1
4 is a long slot 1 for inserting a locking pin formed from the back surface 14 side-to-side or up-down symmetrically along the inside of the fitting ridge 12.
5, two or three thin ribs 17 are formed on each outer peripheral wall 16 of the cradle panel 11 on each side to tighten the inner peripheral wall 4 of the convex rim 2 of the frame 1. A framed panel that can be framed from the front side, wherein the framed panel is fitted. 2. The mounting panel 13 has an outer recessed portion 18 having a slightly smaller diameter and a depth of 2 to 3 mm formed at the center thereof, and further provided at the center of the outer recessed portion 18. It has an intermediate concave fitting portion 19 formed by dropping a small diameter size having a depth of 2 to 3 mm, and further has a small diameter size depth of 2 to 3 in the center of the intermediate concave fitting portion 19.
3 mm outside fitting plate 23 having an inner concave fitting portion 20 formed by dropping into an outer concave fitting portion 18 and a thickness fitting into the intermediate concave fitting portion 19. 3mm
2. The framed panel capable of being framed from the front side according to claim 1, further comprising an intermediate mounting plate 22 having a thickness of 3 mm and a size fitted to the inner concave fitting portion 20. 3. 3. The front side can be framed from the front side according to claim 1, wherein the lightweight hard material having a specific gravity of 0.04 to 0.2 is expanded polystyrene having an expansion ratio of 10 to 25 times. Framed panels. 4. A lightweight hard material having a specific gravity of 0.04 to 0.2 is a foamed synthetic material comprising a wood chip, polypropylene or polyethylene, a molding fusion material, and a foaming agent. Or a framed panel that can be framed from the front side described in 2. 5. The framed panel capable of being framed from the front side according to claim 1, wherein the lightweight hard material having a specific gravity of 0.04 to 0.2 is a natural balsa material. 6. The framed panel capable of being framed from the front side according to claim 1, wherein the thin-walled ridge ribs 17 have a thin wall height of 1 to 2 mm. 7. The thin ridge rib 17 according to claim 1, wherein the thin wall height of the outer peripheral wall surface is gradually increased in a tapered shape from the front side and becomes 1 to 2 mm on the back side. Framed panel that can be framed from the front of the description. 8. The framed panel capable of being framed from the front side according to claim 1, wherein the hard transparent film 31 is a hard transparent film made of polyethylene terephthalate.