JP2015161697A - Waterproof structure of bulletin panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waterproof structure of a general-purpose type panel capable of being used as a waterproof bulletin panel, in which a bulletin object such as a poster can be replaced with simple operation, moisture and humidity entering inside of the bulletin panel in rainy weather can be prevented, and wrinkle occurrence and bleeding of ink due to the moisture and humidity can be prevented and perfect waterproof is achieved, a kind of the bulletin object is not affected by paper quality and a kind of printing ink, even photographic paper of picture which cannot stand humidity can be displayed on outdoor for a long period, and a thick bulletin object can be displayed.SOLUTION: An elastic body is disposed in the surrounding part of a planar plate, and another planar plate is stuck while interposing the elastic body therebetween, and in a state that the elastic body is compressed, a frame is attached to outer peripheral parts of two plates, for adhesion of the plates and elastic body by restore force of the elastic body, and waterproof effect is achieved, in the waterproof structure of the bulletin panel.

Description

The present invention relates to a waterproof structure for a display panel for displaying an advertisement or the like on plain paper.

Conventionally, when plain paper is used for an outdoor poster or the like, deterioration due to the natural environment such as wind and rain occurs, and a poster printed with water-based ink has a problem such as ink bleeding. In order to prevent these, for example, one of the two transparent resin panels is processed into a concave groove, a packing is inserted into the groove, a screw hole is processed around the packing, and the display is sandwiched. As described above, waterproofing measures have been taken by tightening two resin panels with bolts, but there is a problem in workability such that the bolts must be removed and retightened when replacing the posting. In addition, when using a large panel, the number of bolts increases and the workability deteriorates.

In addition, if the posting itself is laminated on the entire surface of the posting to prevent deterioration, it is effective in terms of waterproofing, but if the posting is large and the processing is large, the processing cost becomes enormous. There are disadvantages. A method of storing the entire posting in a transparent plastic bag has also been proposed, but the larger the posting, the higher the cost of the bag, and if there are gaps or looseness, the ink will ooze out due to moisture, and the plastic bag There are problems such as distortion of the images and characters of the postings due to the distortion.

In Japanese Utility Model Laid-Open No. 57-47973, an elastic body is provided at the periphery of a transparent plate, and another plate is overlapped through a waterproof piece made of an elastic body, and the transparent plate and the plate are bonded to each other by a frame that works for pressure bonding. Although the forehead that has been made waterproof by laying around and fixing is described, the elastic body 3 shown in FIG. 2 is configured to be thin, and the pressure-bonding force is reduced by the frame that works for pressure bonding. The elastic body is sandwiched to obtain a waterproof effect, but the repulsive force of the elastic body of the present application is different from the technical point of view and the waterproof effect.

In utility model registration No. 3008851, a concave packing groove, a screw hole and a chain attachment hole are provided on one side of a transparent resin plate, and the resin plate of the same material and shape is not provided with a concave packing groove. A technology is disclosed in which a stepped hole and a chain hole are provided at the same position as the screw hole, and a paper with the necessary information printed on the nameplate is printed between the resin plates and a small screw through the packing fitted in the packing groove. However, there is a problem in workability such that the screw must be removed and retightened for the paper replacement work. Further, when using a large panel, the number of screws increases and the workability is further deteriorated.

In Japanese Patent Laid-Open No. 11-161210, a transparent plate and a mat sandwiching an exhibit are placed in a frame of vertical and horizontal frames, and each frame is a display frame provided with a fitting groove for holding the storage. A waterproof piece that protrudes from the back is integrated around the board, and the mat is housed together with the exhibits inside the waterproof piece. The frame receives the repulsive force of the elastic body as in this application, and has a waterproof effect. It is different from the technical that demonstrates.

Japanese Utility Model Publication No. 57-47973 (claims, FIG. 2) Utility model registration No. 3008851 JP 11-161210 A (summary, FIG. 1)

The present invention enables posters and other postings to be replaced with simple operations, and provides complete waterproofing to prevent moisture and moisture from entering the posting panel during rainy weather. It can be used as a waterproof bulletin board that can be used for long periods of time to display wrinkles on printed materials, ink bleed, photographic papers that dislike moisture, etc. over long periods of time. It is an object to provide a waterproof structure for a mold panel.

The bulletin board according to the present invention is provided with an elastic body in the periphery of a flat plate, two flat plates are overlapped with the elastic body in between, and two elastic plates are compressed. By attaching a frame to the outer periphery of the plate, the plate and the elastic body are brought into close contact with each other by the restoring force of the elastic body, and the waterproof structure of the display panel is provided.

The structure of the waterproof bulletin board according to the present invention is extremely simple, so that it is easy to assemble and disassemble. Deterioration due to moisture and moisture of the object can be prevented, and defects can be solved regardless of the paper quality, such as photographic printing paper that dislikes moisture or the display of plain paper printed with water-based ink. For this reason, waterproofing is particularly effective when posted outdoors.

Since it is composed of a plate, an elastic body, and a frame, it is easy to manufacture, assemble and dismantle, and it is very easy to change the posted material, and the size and thickness of the posted panel can be freely set, which is versatile. Furthermore, by using a permeable plate on both sides, it is possible to display both sides visually, and therefore, it can be expected to be widely used as a waterproof structure for a variety of industrial and commercial posting panels.

The display panel using the waterproof structure of the present invention can be represented by a plurality of panels, for example, two panels can be combined into an L shape to form a three-dimensional shape, or four can be combined into a cross shape. It is. Since the thickness of the bulletin board can be freely designed, it is also possible to use an LED bulletin board by mounting an LED light guide plate inside the bulletin board.

The perspective view which shows the whole structure of an example which concerns on a waterproof structure Perspective view of a cross section of an example of the waterproof structure Cross-sectional perspective view showing an example of the structure of the waterproof structure Front view of the entire display panel as an example of waterproof structure The principal part top view which concerns on an example waterproof structure with a substantially circular elastic body in a cross section The principal part top view which concerns on an example waterproofing state with a substantially circular elastic body in a cross section The principal part top view which concerns on a waterproof structure of an example with a substantially semicircular cross section The principal part top view which concerns on an example waterproofing state with a substantially semicircle elastic body in a cross section The principal part top view which concerns on an example waterproofing structure with a cross-section is a hollow elastic body The principal part top view which concerns on a waterproofing state of an example with a hollow elastic body in a section The principal part top view which concerns on an example waterproofing structure with a rectangular elastic body in a cross section The principal part top view which concerns on a waterproofing state of an example with a rectangular elastic body in a cross section Plan view of relevant parts of an example waterproof structure with a rectangular elastic body having a thin cross section A plan view of the main part according to an example waterproof state with a rectangular elastic body having a thin cross section The principal part top view which concerns on the waterproof structure of an example which is possible even if the position of an elastic body is not in a groove | channel The principal part top view which concerns on an example of the waterproof state where the position of an elastic body is possible even if it is not in a groove | channel The principal part top view which concerns on the waterproof state of an example of the elastic body position when the groove bottom of a fixed frame is processed into the large hollow The principal part top view which concerns on the waterproof state of an example of the elastic body position when the groove bottom of a fixed frame is processed into the large hollow

The details of the present invention will be described with reference to the drawings. FIG. 1 shows an example of a waterproof structure in the present invention. The waterproof structure of the present display panel is a structure in which an elastic body is provided between the flat plate 4 and the other flat plate 4a so as to overlap each other, and the elastic body is attached so as to surround the periphery of the plate. A frame is attached to the outer periphery of the two plates while the elastic body is compressed. The restoring force of the elastic body maintains the adhesiveness between the plate and the elastic body to obtain a waterproof effect, and at the same time, the frame is difficult to come off. Place the notices between the plates.

The elastic body is attached so as to surround the periphery of the plate. However, if there is a joint in the elastic body, moisture or moisture can easily enter, so an integrated shape with no joint is desirable. The ends may be connected. For attachment to the plate, an elastic body is arranged around the periphery of the plate and then sandwiched between the other plates. In order to facilitate the work and prevent the displacement of the elastic body, it may be bonded to one plate. In this case, it may be attached to either the front or back plate.

As the material of the plate, it is desirable to use a resin plate or glass that is permeable to the surface on which the posted object is to be visually recognized, but the material is not limited to this. In addition, when one transparent resin plate or glass is used for visual recognition on one side, the other plate is made of a material that does not allow moisture or moisture to permeate, and is at least flat on the inner surface where the surface of the elastic body 2 can be in close contact. Any material other than resin plates and glass may be used, for example, metal plates or surface-treated wood plates. FIG. 2 is a perspective view of a cross section of an example of a waterproof structure.

FIG. 3 is a cross-sectional perspective view showing an example of the structure of the waterproof structure. Here, the dimensional relationship between the groove width 1b of the frame 1 and the thickness B formed by the elastic body 2 and the two plates is a feature of the present invention, and the groove width 1b of the frame 1 does not apply pressure to the elastic body. In this state, the frame is inserted while compressing the elastic body with the two plates by making it smaller than the dimension of the thickness B constituted by the elastic body 2 and the two plates, and the repulsive force of the elastic body Can be used, and the close contact is maintained by the restoring force of the elastic body, and the intrusion of moisture and moisture is prevented. Further, the frame 1 is prevented from being easily detached by the frictional force between the plate pushed out by the repulsive force of the elastic body and the inner surface of the groove width 1b of the frame 1.

The aforementioned dimensional relationship is preferably about 4 mm (40%) to 6 mm (60%) when the thickness (diameter) of the elastic body before compression is 10 mm (100%), for example. However, it is not limited to this range. Further, the groove depth 1c of the U-shaped groove of the frame 1 is set to such a depth that the elastic body 2 is hidden in the frame 1 when the frame 1 is inserted into the outer periphery of the plate. Can be hidden in the frame and maintain the appearance of the panel, such as preventing the plate from bulging.

The shape of the frame is not limited to this as long as it can be fixed so that the two plates are bonded to each other with an elastic body in between. The hardness and thickness of the elastic body, the thickness of the plate, the groove width of the frame, and the like are adjusted as appropriate in consideration of the ease of insertion of the frame into the plate or the ease of removal from the plate. Further, the plate can be easily inserted by chamfering the plate insertion opening or the outer periphery of the plate. The material of the frame 1 is not limited to a material such as a metal or a resin as long as it is water-resistant and has a strength capable of retaining the repulsive force of the elastic body.

The cross-sectional shape of the elastic body is preferably substantially semicircular, but any shape that can be sealed by surface contact or line contact with the plate is acceptable. A cross-sectional shape such as a circle, a rectangle, a polygon, and those provided with a hollow can be used. 1, 2, 3, 7, and 8 show an example of an elastic body having a substantially semicircular cross section. 9 and 10 show an example of a hollow elastic body having a substantially semicircular cross section, and FIGS. 5, 6, 15, 16, 17, and 18 show examples of an elastic body having a substantially circular cross section. 11 and 12 show an example of an elastic body having a rectangular cross section, and FIGS. 13 and 14 show an example of an elastic body having a thin cross section.

The elastic body is made of a material that can be restored even if it is compressed for a long period of time and a repulsive force against the pressing pressure. For example, it can be selected from elastic natural rubber, synthetic rubber, silicone rubber, urethane rubber, rubber tube, and the like.
Examples of the sponge material include CR rubber sponge, silicone rubber sponge, and fluorine rubber sponge. Here, CR rubber sponge (chlorobrene rubber), silicone rubber sponge, etc. have the flexibility and cushioning characteristic of sponge, are single-celled sponges, and are covered with a thin film unique to extruded sponge molded products. Although it has a sealing property that prevents water and air from passing through, it has a problem that the restoring force disappears due to long-term compression, and the silicone rubber sponge has a disadvantage that it is vulnerable to moisture because it is porous.
What is important in the selection of an elastic body is that it can be restored even if compressed for a long period of time, and it is desirable to select a material that has excellent weather resistance when assuming long-term outdoor posting. Therefore, the elastic body is not limited to the aforementioned materials.

Since the elastic body is inserted into the U-shaped groove of the fixed frame while compressing the elastic body, the elastic body is required to have a material with an appropriate hardness. The hardness can be adjusted by making the inside of the elastic body hollow or using a sponge material. According to the experiment, the optimum hardness is about 17-30, and the compression rate is about 40-60%, but it is possible to smoothly insert the frame with an appropriate force and at the same time prevent the frame from coming off, The adhesion between the plate and the elastic body is maintained by the repulsive force of the elastic body. The ease of insertion differs depending on the type and thickness of the elastic body and is not limited to the above experimental values.

Within the range of the above values, a pressure resistance test for 10 minutes was performed by submerging in the body of the display panel whose dimensions were set as follows. The hardness of the elastic body is 25, the cross-sectional shape of the elastic body is rectangular, the cross-sectional dimension of the elastic body is 7 × 7 mm, the compression rate is 57.1% (compressed from 7 mm to 4 mm), the acrylic plate thickness is 1.5 mm, The reinforcing plate is an aluminum composite plate with a thickness of 3 mm, the groove width of the frame is 7 mm, and the total size of the display panel is 2 sets of 442 mm x 616 mm (A2 size) and 1 set of 440 mm x 320 mm size The set was simultaneously enclosed in a water pressure tester and tested from 0.1 Mpa. As a result, no penetration of water was confirmed up to 0.2 Mpa (about 2 kg / cm, converted to a water depth of 20 m) for all three sheets. Next, as a result of carrying out at 0.5 Mpa (about 5 kg / cm, water depth conversion 50 m), one set of a size of 440 mm × 320 mm was not confirmed to enter water, and in two sets of 442 mm × 616 mm (A2 size) In the vicinity of the corner, slight bleeding occurred over a total length of about 300 mm and a width of 10 mm. From this result, it was proved that there was sufficient durability against water pressure.

The type of adhesive is preferably an acrylic adhesive such as a solventless elastic adhesive, an elastic adhesive such as a modified silicone elastic adhesive, chlorobrene rubber or nitrile rubber. In addition, cyanoacrylate instant adhesives having a fast curing speed are also elastic, and it is desirable to select them appropriately from the working conditions and the curing speed. In addition, double-sided tape can be used instead of adhesive, but some double-sided tapes using acrylic pressure-sensitive adhesives still have problems in posting on photographic paper because water moves molecules in the adhesive. Since the nature of each type of double-sided tape is ambiguous, it is desirable to select a material that meets the usage conditions of each posting panel among various types of adhesives and double-sided tapes.

The method of inserting the outer periphery of the two plates sandwiching the elastic body into the frame is extremely easy. For example, if the method of inserting from the left side is explained by standing up on a flat surface such as a desk, the elastic body is first inserted. Squeeze the thickness direction of the upper left end of the two sandwiched plates with your left thumb and forefinger until they enter the U-shaped groove of the fixed frame, hold the left end of the frame with your right hand, and hold the two plates from the left end of the frame If it is inserted and then pushed down sequentially from the position where about 1/4 to 1/3 of the groove depth of the frame is inserted from the left side, the elastic body can be easily inserted while being compressed. When one side is inserted, the end of the next side is already compressed, so there is no need to crush, and after inserting the left end for all three sides, it can be easily mounted all around if pushed down sequentially from the left side. End up. In addition to this, in the case of a large bulletin board, place it flat on a desk or hold it so that the two plates do not shift with one side of the bulletin panel protruding from the edge of the desk. If it is inserted at one end of the frame and sequentially inserted toward the center of the panel, it can be easily mounted. For example, if the B1 size has a side length of 1030 mm, one side can be mounted by pressing down about 4 to 5 times, and the remaining three sides are similarly repeated to complete the entire circumference mounting. Since the frame does not easily come off as it is, it can be installed as it is when leaning against a wall or the like. If you need to hang it or fix the panel to something, you can fix the frames at the four corners with corner brackets and attach a hanging rod.

In order to maintain the strength of the posting panel, a reinforcing plate 5 may be inserted together with the posting as shown in FIG. The material of the reinforcing plate 5 may be a light and strong material, and resin, metal, wood, etc. can be used.

The display panel using the waterproof structure of the present invention can be industrially produced and can completely prevent rainwater from entering the panel, so that it can be used for advertising and display inside and outside the store. Is widely available in various industries.

Frame 1a. U-shaped groove 1b. U-shaped groove width 1c. U-shaped groove depth Elastic adhesive surface plate 4a.
B. Thickness composed of elastic body 2 and two plates when pressure is not applied to elastic body

Claims (1)

An elastic body is provided on the periphery of the flat plate, and another flat plate is overlapped with the elastic body in between, and the elastic body is compressed and a frame is formed on the outer periphery of the two plates. And the groove depth of the frame is set to such a depth that the elastic body is hidden in the frame, thereby preventing the plate from bulging and the elastic body's restoring force brings the plate and the elastic body into close contact with each other, thereby providing a waterproof effect. The waterproof structure of the posting panel, characterized by working.

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