JP2008065273A - Plate type body for bulletin board and bulletin board for election poster using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plate type body for a bulletin board which is light in weight, is nevertheless strong enough for practical use, is superior in water resistance, weatherability and can maintain the flatness of a poster bulletin surface, and further permits repetitive use and is thereby advantageous in terms of cost, and preferably prevents shading from backwardness from being projected to forward, and a bulletin board for election posters using the same. <P>SOLUTION: For example, an air cap sheet 4a and a honeycomb structure or the like are interposed between a front surface plate 2 made of a synthetic resin and a dark color rear surface plate 3 and the three are integrated by welding or adhesives to provide a hollow layer 4 consisting of the air cap sheet and the honeycomb structure or the like, and the plate type body 1 for the bulletin board of three layer structure is formed. The bulletin board for the election posters is obtained by fixing the plate type body 1 for the bulletin board to the front of a frame and attaching legs thereto at need. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a board for a bulletin board having a specific structure using a surface plate made of synthetic resin, and a bulletin board for an election poster using the same.

  In general, as a bulletin board to post a candidate's poster during an election campaign, a veneer board is fixed to the front of the frame by nailing and a leg is attached to the rear of the frame as necessary. Has been.

Further, as disclosed in JP-A No. 2002-341799 (Patent Document 1), a plate-like base material is formed from cardboard subjected to water resistance treatment, and a polyethylene terephthalate (PET) film is formed on both surfaces of the base material. A bulletin board using a laminate is also proposed.
JP 2002-341799 A

  Furthermore, a bulletin board in which a synthetic resin plate-like body made of a single plate is fixed to the front surface of the frame by nailing is also used.

  However, a bulletin board using a plywood board is heavy and easily damaged, and is not suitable for repeated use.

  In addition, in a bulletin board using a board in which a plate-like substrate is formed from cardboard that has been subjected to water-resistant treatment, and a polyethylene terephthalate (PET) film is laminated on both sides of the substrate, the substrate is cardboard. In terms of properties, weather resistance and strength, it is not suitable for repeated use.

  Furthermore, the bulletin board using the synthetic resin plate-like body made of a single plate is fixed by nailing the synthetic resin plate-like body at a predetermined interval on the front surface of the frame body, so that it is caused by heat such as direct sunlight. Due to the expansion, the plate surface between the nails is curved, and it is difficult to maintain the flatness of the poster display surface.

  Further, a bulletin board using a synthetic resin plate-like body made of a single plate generally has a grid-like frame body using a plurality of members in a horizontal direction and a vertical direction in a rectangular frame member. Therefore, by direct sunlight from behind, etc., the shadow of the frame members in the frame and the trees behind is projected on the surface, so that the shadow is projected on the face part of the candidate in the pasted election poster, There is a problem that it looks bad.

  In light of the above problems, the present invention is light and has sufficient strength for practical use, is excellent in water resistance and weather resistance, and causes thermal expansion and contraction based on changes in direct sunlight, temperature, etc. It is advantageous in terms of cost by preventing the poster posting surface from being curved, maintaining flatness, and enabling repeated use, and preferably a bulletin board in which no shadow from the back side is projected on the surface The purpose of the present invention is to provide a board-like body and a bulletin board for election posters using the same.

According to the present invention, the above problem is solved as follows.
(1) It is set as the board for bulletin boards which provided the hollow layer between the surface board made from a synthetic resin, and a back surface board, and was set as the three-layer structure.

(2) In the item (1), the hollow layer is formed by interposing a hollow layer member composed of a large number of columns or pieces between the front plate and the back plate and integrating them by welding or an adhesive.

(3) In the item (2), the hollow layer is integrated by welding or an adhesive, with an air cap sheet, a honeycomb structure, or a corrugated plate interposed between the front plate and the back plate. To form.

(4) In the items (1) to (3), there is provided a shadow preventing means for preventing the surface plate from being shaded by light transmitted from behind the bulletin board plate.

(5) In the item (4), the shade prevention means is the back plate or hollow layer of black or other dark color, or the back surface of the bulletin board plate is black or other dark color. It is formed by disposing a sheet-like material.

(6) The bulletin board plate according to any one of (1) to (5) is used as an election poster bulletin board fixed to the front surface of the frame.

According to the present invention, the following effects can be achieved.
(1) According to the invention described in claim 1, since it has a three-layer structure having a hollow layer, it is light in weight and has a practically sufficient strength and uses a surface plate made of a synthetic resin. It is excellent in heat resistance and weather resistance, and it has a three-layer structure, so it can prevent the surface plate from being bent due to thermal expansion and contraction due to changes in direct sunlight, temperature, etc., and can maintain flatness. . Furthermore, since it is excellent in weather resistance and strength, it can be used repeatedly, and a board for bulletin boards advantageous in terms of cost can be obtained.

  (2) According to the invention described in claim 2, it is possible to easily form a hollow layer that can effectively achieve the object of the present invention.

  (3) According to the invention described in claim 3, the hollow layer can be easily formed, and in particular, by forming the hollow layer with an air cap sheet or a honeycomb structure, it is possible to prevent changes in direct sunlight, temperature, etc. It is possible to effectively prevent the poster display surface from being bent due to thermal expansion and contraction based on the above, and to maintain good flatness, and it is possible to repeatedly use it for many years.

  (4) According to the invention described in claim 4, even if direct sunlight or the like is irradiated from behind, shadows such as members in the frame of the frame and trees behind the frame are not projected onto the surface plate serving as the poster display surface. Thus, it is possible to prevent the inconvenience that the candidate's face or the like in the attached election poster looks unpleasant.

  (5) According to the invention described in claim 5, an effective shadow preventing means can be easily formed.

  (6) According to the sixth aspect of the present invention, a bulletin board for election posters that can effectively demonstrate the object of the present invention can be easily obtained.

  Hereinafter, the present invention will be described based on the drawings.

  FIG. 1 is a partially cutaway front view of a bulletin board for an election poster using the bulletin board plate of the present invention, FIG. 2 is a partially enlarged view of part A in FIG. 1, and FIG. FIG. 3 is a partially enlarged view taken along line III-III in FIG. 2.

As shown in FIGS. 2 and 3, the bulletin board plate (1) is bonded with an air cap sheet between the front surface plate (2) and the back surface plate (3) by heat welding or adhesive. And a three-layered plate-like body formed by forming a hollow layer (4).
The three-layer structure having the hollow layer (4) has a practically sufficient strength while being lightweight.

  Since the surface plate (2) serves as a display surface for election posters, a plate-shaped body made of a synthetic resin such as white polypropylene or polyethylene is used.

  Between the front plate (2) and the back plate (3), an air cap sheet is interposed, and as a means for integrating the three, thermal welding is preferable from the viewpoint of workability, the back plate (3) is also It is preferable to use a synthetic resin plate.

  Also, due to the ease of thermal welding and the strength of welding, it is recommended that the same kind of thermoplastic synthetic resin be used for the air cap sheet that forms the front plate (2), back plate (3), and hollow layer (4). Is done.

  Furthermore, in order to improve the weather resistance, it is desirable to use those thermoplastic synthetic resins that are molded by adding a considerable amount of an appropriate additive such as an ultraviolet absorber.

  On the front surface of the surface plate (2), titles, precautions, a frame indicating a poster posting position, and the like are displayed as necessary by silk screen printing or the like.

  As shown in FIG. 1, the bulletin board plate (1) formed in this way has an appropriate number of longitudinal or lateral intermediate members (5b) (5c) on a horizontally long frame member (5a). Are fixed to the front surface of the lattice-shaped frame (5) formed by providing nails at desired intervals.

  The frame (5) is preferably made of a material capable of fixing the bulletin board plate (1) by nailing, for example, made of wood, foamed plastic, compressed sawdust, recycled plastic, or the like.

  Leg posts (6) and (6) are attached to the rear surface of the frame (5) by using the longitudinal middle member (5c) of the frame (5).

  When the front plate (2) and the back plate (3) are made of synthetic resin, the frame (5) is affected by the plate thickness due to the direct sunlight from the back of the bulletin board plate (1). ), The shadows of the middle members (5b) and (5c) or the trees behind are projected on the face of the candidate on the election poster affixed to the faceplate, which may deteriorate the appearance.

Effective means for preventing such shadows include the following.
That is, the back plate (3) or the hollow layer (4) is formed in black or other dark color.

  For this purpose, an appropriate additive such as a dark pigment may be added when the substrate of the back plate (3) or the hollow layer (4) is formed.

  In addition, in the case of the back plate (3) and the hollow layer (4) made of a non-dark base material, the front plate (2), the back plate (3) and the hollow layer (4) are integrated to form a board for a bulletin board. The surface of the back plate (3) or the hollow layer (4) may be colored by an appropriate means when forming the body (1), or before and after.

  When the hollow layer (4) is dark, the hollow layer (4) itself becomes a dark room, and even if the back plate (3) is white, shadows due to light transmission from the back are blocked by the hollow layer (4). And is not projected onto the surface plate (2).

  In addition, a black or other dark sheet-like material (including a film-like material) may be disposed on the back surface of the bulletin board plate (1).

  That is, specifically, after sticking a dark sheet material with an adhesive or the like on the back surface of the bulletin board plate (1), it is nail-fixed on the front surface of the frame (5), or When nailing and fixing the bulletin board plate (1) to the frame (5), a dark sheet material is interposed between the two, and the bulletin board plate (1) and the sheet material are simultaneously You may fix to the front surface of a frame (5).

FIG. 4 is a partially enlarged perspective view showing a second embodiment of the bulletin board according to the present invention.
Between the front plate (7) and the back plate (8), a honeycomb structure (9a) formed by combining a large number of irregularly shaped plate-like bodies is interposed, and these three members are welded or bonded. A hollow layer (9) is formed with the honeycomb structure integrated with the agent.

  According to this embodiment, it is possible to obtain a stronger and harder board for a bulletin board than a bulletin board using an air cap sheet.

FIG. 5 is a partially enlarged sectional view showing a third embodiment of the board for bulletin board according to the present invention.
A corrugated plate (12a) is interposed between the front plate (10) and the back plate (11), and these three members are integrated by welding or an adhesive, and the hollow layer (12) is formed with the corrugated plate. ing.

  According to this embodiment, the board for bulletin boards can be obtained more simply.

  In addition to the hollow layer member having the structure specifically exemplified above, the hollow layer may be formed by a number of columnar bodies or piece-like bodies having other shapes.

  For example, it can be constituted by a large number of hollow or solid columnar bodies having various shapes, or a lattice-shaped body.

It is a front view which partially cut and shows what was made into the poster board for elections using the bulletin board of this invention. It is the elements on larger scale of the A section in FIG. FIG. 3 is a partially enlarged view taken along line III-III in FIG. 2. It is a partial expansion perspective view which shows 2nd Embodiment of this invention. It is a partial expanded sectional view which shows 3rd Embodiment of this invention.

Explanation of symbols

(1) Bulletin board plate
(2) Surface plate
(3) Back plate
(4) Hollow layer
(4a) Air cap sheet
(5) Frame
(5a) Frame member
(5b) (5c) Middle member
(6) Pillar
(7) Surface plate
(8) Back plate
(9) Hollow layer
(9a) Honeycomb structure
(10) Surface plate
(11) Back plate
(12) Hollow layer
(12a) Wavy body

Claims (6)

  A board for a bulletin board comprising a three-layer structure in which a hollow layer is provided between a surface plate made of synthetic resin and a back plate.   The hollow layer is formed by interposing a hollow layer member composed of a large number of columnar bodies or piece-like bodies between a front surface plate and a back surface plate and integrating them by welding or an adhesive. Board for bulletin board.   The hollow layer is formed by interposing a hollow layer member of any one of an air cap sheet, a honeycomb structure, and a corrugated plate between a front surface plate and a back surface plate and integrating them by welding or an adhesive. Item 3. A board for bulletin board according to Item 2.   4. The bulletin board plate according to any one of claims 1 to 3, further comprising a shadow prevention means for preventing a shadow from being generated on the surface plate due to light transmitted from behind the bulletin board plate. body.   By making the back plate or hollow layer black or other dark color, or by disposing a black or other dark sheet material on the back surface of the bulletin board plate. The board for bulletin board according to claim 4, which is formed.   A bulletin board for election posters, characterized in that the board for bulletin board according to any one of claims 1 to 5 is fixed to the front surface of a frame.

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