JP6067918B1 - Display device - Google Patents

Abstract

An object of the present invention is to avoid a situation in which even if rainwater or the like enters a display device in a lit state, the aesthetics thereof are greatly impaired. A signboard device configured to be able to dispose a display medium on a front surface side of a light guide plate attached to a base plate having a long plate shape in front view. The light guide plates 4 and 4 are attached to the base 2 with both end portions in the width direction being inserted into the insertion groove portions 13 and 13 so as to be incident from the end face in the direction. , 4 are arranged on the surfaces F11a, F11b with first protrusions (ribs 11a, screw heads of the screws 21 and nuts 22) forming a gap S1a between the main body 11 and the light guide plates 4, 4 in contact with the surface F4a. It is installed and configured. [Selection] Figure 2

Description

  According to the present invention, light emitted from a strip-shaped light source disposed at an end portion in the width direction of a long plate-like base body is guided to each portion in the width direction by a light guide plate and disposed on the surface side of the light guide plate. The present invention relates to a display device configured to transmit a displayed display medium.

  As a display device of this type, the applicant has disclosed a signboard device capable of displaying a display medium (advertisement medium) from the back side in the following prior application. This signboard device includes a base, a pair of LED substrates, a light guide plate, a cover plate, a pair of caps (lids), and a controller unit that supplies power to the LED substrates.

  In this case, the base body includes a main material and a pair of LED fixtures, and is formed in a long plate shape as viewed from the front. The main material is configured by integrally forming a main body portion and a pair of edge plate portions provided at both end portions of the main body portion and covering both end portions in the width direction of the light guide plate and the cover plate. Furthermore, the LED fixture is configured such that the LED substrate can be attached to the main material by being attached to the insertion groove in the main material in a state where the LED substrate is attached. The light guide plate is disposed on the surface side of the main body portion of the substrate so that light emitted from the LED substrate can be guided to each portion in the width direction of the substrate, and the cover plate is disposed on the surface side of the light guide plate. A display medium is attached to the substrate so as to be able to hold it together with the optical plate.

  When assembling this signboard device, first, an LED substrate is attached to an LED attachment formed separately from the main material, and then the LED attachment is accommodated and fixed in a groove for insertion in the main material. Thereby, the attachment of the LED substrate to the base is completed. Next, the light guide plate is attached to the base so that both ends in the width direction are inserted into the insertion groove. Thereby, the surface of the main body of the main body of the base and the back surface of the light guide plate are in surface contact with each other, and the base and the light guide plate are integrated. Subsequently, the cover plate is attached to the base so that both ends in the width direction are inserted into the insertion groove. Thereby, the base body and the cover plate are integrated in a state where a gap into which the display medium can be inserted is formed between the front surface of the light guide plate and the back surface of the cover plate. Next, caps are respectively attached to both ends in the longitudinal direction of the base body, the LED substrate, the light guide plate, and the cover plate. Thereby, a signboard apparatus is completed.

  On the other hand, when using this signboard device, after removing either one of the caps and inserting the display medium between the light guide plate and the cover plate, the removed cap is mounted on the base (main body portion) again. As a result, the display medium can be illuminated from the back side by the light emitted from the LED substrate and guided by the light guide plate.

Prior application

  Japanese Patent Application No. 16-143927

  However, the signboard device disclosed by the applicant has the following problems to be improved. That is, in the signboard device disclosed by the applicant, a configuration is adopted in which the base and the light guide plate are integrated by attaching the light guide plate to the base so that both ends are inserted into the insertion grooves. Thereby, in the signboard device disclosed by the applicant, the light guide plate can be easily detached from the base body (main material) as compared with a configuration in which the light guide plate is fixed to the base body (main material) by screwing or the like. It is possible to easily manufacture products that are not present in a short time.

  However, in the signboard device disclosed by the applicant, when the base body and the light guide plate are integrated, the surface of the main body portion of the base body (main material) and the back surface of the light guide plate are in surface contact with each other. It is configured as follows. For this reason, when rainwater or the like enters the apparatus from between the base body, the cover plate, and the cap when used outdoors, the intruded rainwater is extremely small between the base body and the light guide plate due to capillary action. There is a tendency that the rainwater or the like that has entered easily enters the gap, and that it is difficult for the rainwater or the like that has entered the gap to leave the gap between the base and the light guide plate.

  In this case, in the signboard device disclosed by the applicant, since a cap is attached to the end portion in the longitudinal direction (vertical direction), the amount of rainwater or the like entering the device is relatively small. . Therefore, when rainwater or the like enters the apparatus, a small amount of rainwater or the like enters a signboard apparatus (signboard apparatus having a sufficiently large base or light guide plate) that is sufficiently large to display the display function sufficiently. Therefore, the rainwater or the like does not enter the gap between the base and the light guide plate in the entire area in the front view, but the rainwater enters the gap between the base and the light guide plate only in a part of the area. Etc. are invaded.

  For this reason, when the signboard apparatus in which rainwater has entered is viewed from the front side, a region where rainwater or the like exists in the gap between the base and the light guide plate (site close to the peripheral edge of the light guide plate: And a region where rainwater or the like does not exist in the gap between the base and the light guide plate (a portion near the center of the light guide plate: hereinafter also referred to as a “non-intrusion region such as rainwater”). It becomes a state. In such a state, in the rainwater intrusion region, the light emitted to the back side (base side) of the light guide plate is reflected by the base after passing through the rainwater etc. existing in the gap, and the reflected light is reflected. In the rain light non-intrusion area, the light emitted to the back side (substrate side) of the light guide plate is incident on the light guide plate and emitted to the front side of the light guide plate. After being transmitted through the atmosphere (air) existing in the gap and then reflected by the substrate, the reflected light is transmitted through the atmosphere and then incident on the light guide plate again and emitted to the front side of the light guide plate; Become.

  For this reason, in the signboard device disclosed by the applicant, the rainwater etc. intrusion area and the rainwater etc. non-intrusion area are introduced due to the difference between the light refractive index of rainwater etc. and the light refractive index of the atmosphere (air). As a result of the difference in the traveling direction of the light emitted to the back side of the light plate, when the signboard apparatus is viewed from the front, a bright part (part where the amount of light emitted from the LED board is large) and a dark part (LED board) There is a risk that the aesthetic appearance of the lighting signboard device may be impaired. For this reason, it is preferable to improve this point.

  The present invention has been made in view of the problems to be improved, and provides a display device capable of avoiding a situation in which the aesthetic appearance is greatly impaired even when rainwater or the like enters a display device in a lit state. The main purpose.

  In order to achieve the above object, a display device according to claim 1 is a front plate-like base plate, a strip light source attached to at least one of both end portions in the width direction of the base body, and a surface side of the base body. A light guide plate that is disposed along one surface and attached to the base and guides light emitted from the belt-like light source to each part in the width direction of the base, and is displayed on the front side of the light guide plate A display device configured to be capable of disposing a medium, wherein the base body is provided at a front plate-like main body portion and both end portions in the width direction of the main body portion in the width direction of the light guide plate. A pair of insertion groove portions which are provided with a pair of edge plate portions covering the surface side of both end portions and into which the light guide plate can be inserted by the both end portions and the both edge plate portions of the main body portion, Before The light guide plate is accommodated in at least one of a pair of insertion groove portions, and the light guide plate is configured to receive light from the band-shaped light source body received in the insertion groove portion from the end surface in the width direction. Is attached to the base body in a state of being inserted into the both insertion groove portions, and the main body portion is in contact with one surface of the back surface side of the light guide plate in a state of being inserted into the insertion groove portions. And a first convex part that forms a gap between the light guide plate and the light guide plate.

  The display device according to claim 2 is the display device according to claim 1, wherein the base body includes a first member constituting a part on one side in the width direction and a part constituting the other side in the width direction. A plurality of base member constituting members including at least both of the two members are joined together and formed into a long plate shape in front view, and a joint portion of each base member is defined in the thickness direction of the main body. The heads of the fastening members that are respectively penetrated to fix the base member constituting members are protruded from the main body so as to function as the first convex portions.

  The display device according to claim 3 is provided with a surface plate that is arranged along one surface of the light guide plate and holds the display medium together with the light guide plate in the display device according to claim 1 or 2. The base is formed with both insertion grooves so that the light guide plate and the surface plate can be inserted, and is positioned between the light guide plate and the surface plate to create a gap between the light guide plate and the surface plate. And a second convex part for holding the light guide plate together with the main body part and holding the surface plate together with the edge plate part.

  The display device according to claim 4 is the display device according to claim 3, further comprising a lid that covers end portions in the longitudinal direction of the base body, the light guide plate, and the surface plate, and the light guide plate is provided on the lid body. And a third convex portion that is inserted between the light guide plate and the surface plate to maintain a gap between the light guide plate and the surface plate.

  According to the display device of the first aspect, the first protrusion that forms a gap between the main body portion and the light guide plate on one surface of the base body facing the light guide plate of the main body portion and in contact with one surface of the rear surface side of the light guide plate. Even if rainwater or the like enters the display device, it is difficult for rainwater or the like to enter the gap between the main body and the light guide plate, and between the main body and the light guide plate. Even if rainwater or the like intrudes into the gap, the rainwater or the like that has entered falls easily due to its own weight and easily leaves the gap.Therefore, a bright area and a dark area are generated due to the presence of an intrusion area such as rainwater and a non-intrusion area such as rainwater. It is possible to preferably avoid the occurrence of the state. As a result, even if rainwater or the like enters the lit display device, it is possible to avoid a situation in which the aesthetic appearance is greatly impaired and to illuminate the display medium with uniform brightness throughout the entire area.

  According to the display device of claim 2, a plurality of base member constituting members are joined and integrated to form a long plate-like base member, and the heads of the fastening members for fixing the base member constituting members are provided. By adopting a structure that protrudes from the main body portion and functions as the first convex portion, the base body has a divided structure, so that the base body can be manufactured more easily than when the base body has an integral structure. The manufacturing cost of the display device can be sufficiently reduced by sufficiently reducing the component cost of the rainwater, and the presence of a gap formed by the head of the fastening member can prevent the rainwater intrusion area and the rainwater non-intrusion area. It is possible to suitably avoid the occurrence of a bright part and a dark part due to the presence.

  According to the display device of claim 3, the state where the gap is generated between the light guide plate and the surface plate by being positioned between the light guide plate and the surface plate is maintained, the light guide plate is held together with the main body portion, and the edge plate By providing the second convex part that holds the surface plate together with the part, it is possible to create a sufficiently wide gap between the light guide plate and the surface plate as well as the width of the second convex part. Not only can the display medium be easily inserted into the gap between the optical plate and the surface plate, but even if rainwater or the like enters the display device having the surface plate, the gap between the light guide plate and the surface plate can be reduced. Invasion of rainwater and the like due to capillary action is difficult to occur, and even if rainwater or the like invades between the light guide plate and the surface plate (in the gap), the intruding rainwater or the like is easily dropped and removed from the gap due to its own weight. Rainwater intrusion area and From a state in which bright portions and the dark portions due to the presence occurs such as water noninvasive region it can be suitably avoided. As a result, even if rainwater or the like enters the lit display device in the display device provided with the surface plate, it is visually recognized by illuminating the display medium with uniform brightness throughout the entire area, avoiding a situation in which the aesthetic appearance is greatly impaired. Can be made.

  According to the display device of claim 4, a gap is generated between the light guide plate and the surface plate by being inserted between the light guide plate and the surface plate on the lid that covers the longitudinal ends of the base body, the light guide plate, and the surface plate. Unlike the configuration in which a gap is generated between the light guide plate and the surface plate only by the second convex portion by providing the third convex portion that maintains the state, the gap is generated by the presence of the third convex portion. Therefore, a state in which the display medium can be visually recognized with uniform brightness over the entire area can be preferably maintained over a long period of time.

1 is an external perspective view of a sign device 1. FIG. 2 is a cross-sectional view in the width direction of the signboard device 1. FIG. 1 is an exploded view of a signboard device 1. FIG. 3 is a cross-sectional view of an end portion of the sign device 1 in a width direction. FIG. It is sectional drawing of the junction part of the 1st member 20a (2nd member 20b) and the 3rd member 20c in the signboard apparatus 1. FIG. 3 is a cross-sectional view of an end portion of the signboard device 1 in a longitudinal direction. FIG. 3 is a plan view of an LED substrate 3. FIG. It is explanatory drawing for demonstrating the state which attached the LED board 3 to the LED fixture 30. FIG. It is explanatory drawing for demonstrating the state which attached the LED fixture 30 shown in FIG. 8 to the main material 10. FIG. It is explanatory drawing for demonstrating the state which attached the light-guide plates 4 and 4 to the main material 10 shown in FIG. It is explanatory drawing for demonstrating the state which attached the cover plates 5 and 5 to the main material 10 shown in FIG. It is sectional drawing in the width direction of 1 A of signboard apparatuses. It is an exploded view of signboard device 1A. It is sectional drawing of the edge part in the width direction of 1 A of signboard apparatuses. It is sectional drawing of the formation site | part of the rib 11a in signboard apparatus 1A. It is sectional drawing of the junction part of the 1st member 20d and the 2nd member 20e in signboard apparatus 1A. It is sectional drawing in the width direction of the signboard apparatus 51. FIG. It is a top view of the cover body 56 in the signboard apparatus 51. FIG. It is sectional drawing of the center part in the width direction of the signboard apparatus 51. FIG. It is sectional drawing of the edge part in the width direction of the signboard apparatus 51. FIG. It is sectional drawing of the edge part in the longitudinal direction of the signboard apparatus 51. FIG.

  Embodiments of a display device according to the present invention will be described below with reference to the accompanying drawings.

  The signboard device 1 shown in FIG. 1 is an example of a “display device”, and displays a display medium (advertisement medium: printed on paper or film with arbitrary symbols or symbols: not shown) illuminated from the back side. It is configured to be able to. In this case, the signboard device 1 of this example is a “display device” capable of displaying by disposing display media on both the front and back surfaces, and using a mounting bracket X, X, etc. It is configured so that it can be used in a state where it is attached to a wall surface, or can be used in a state where it is set on a stand (holding tool) (not shown) and is made to stand on a flat surface.

  As shown in FIGS. 2 to 6, the signboard device 1 has a base 2, four LED substrates 3, a pair of light guide plates 4, a pair of cover plates 5, a pair of lids 6, and the LED substrate 3. And a controller unit (not shown) that supplies electric power (controls lighting).

  The base body 2 is an example of a “base body”, and is formed in a front plate shape as a whole. The base body 2 includes a main material 10 and four LED fixtures 30. In this case, as shown in FIGS. 2 and 3, in the signboard device 1 (base 2) of this example, the first member 20 a (an example of “first member”) constituting the one side portion in the width direction and the width A second member 20b (an example of a “second member”) that constitutes the other side portion in the direction, and a third member 20c that connects the first member 20a and the second member 20b. 21 and a nut 22 (an example of a “fastening member”) are integrally fixed to form a long plate in front view. In the base 2 (main material 10) of this example, the first member 20a, the second member 20b, and the third member 20c each correspond to a “base constituent member”.

  In addition, the first member 20 a is integrated with the third member 20 c and the second member 20 b, the part constituting the main body 11 having a long plate shape when viewed from the front, and the end surface in the width direction of the main body 11. A pair of edge plate portions 12 and 12 provided respectively on F11a and F11b are integrally formed by extrusion using aluminum. Further, the second member 20b is provided on a portion constituting the main body 11 in an integrated state with the third member 20c and the second member 20a, and on end surfaces F11a and F11b in the width direction of the main body 11 respectively. The paired edge plate portions 12 and 12 are integrally formed by extrusion using aluminum.

  In this example, in order to facilitate understanding of the configuration of the signboard device 1, two of the three members constituting the main material 10 are referred to as a first member 20a and a second member 20b. In practice, however, the first member 20a and the second member 20b are formed of a single type of member having the same material, shape, size, and the like.

  As shown in FIGS. 2 and 4, on the surfaces F11a and F11b (surfaces facing the surface F4a of the light guide plate 4) of the main body 11 of the first member 20a and the second member 20b, the base 2 is formed as described later. A gap S1a (“main body portion and light guide plate” between the main body portion 11 and the light guide plate 4 in contact with the surface F4a (an example of “one surface on the back side”) of the light guide plate 4 attached to the (main material 10). Rib 11a (an example of a “first convex portion”) is formed. In this case, in the base body 2 (main material 10) of this example, the rib 11a is formed in the site | part which opposes the edge-plate part 12 in the main-body part 11 of the 1st member 20a and the 2nd member 20b.

  Furthermore, as shown in FIGS. 2 and 5, in the signboard device 1 (base 2) of the present example, the joint portions of the first member 20 a and the third member 20 c are respectively penetrated in the thickness direction of the main body portion 11, and both members Screws for fixing the members 20b and 20c by passing through the screw heads and nuts 22 of the screws 21 for fixing the members 20a and 20c and the joint portions of the second member 20b and the third member 20c in the thickness direction of the main body 11 respectively. The screw head 21 and the nut 22 are protruded from the main body 11 so as to function as the “first protrusion” similar to the rib 11a. In this example, the screw head of the screw 21 and the nut 22 correspond to the “head of the fastening member”.

  The main body portion 11 is an example of a “main body portion”, and in the signboard device 1 (base 2) of the present example, the surface-side surfaces F11a and F11b of the main body portion 11 are mirror-finished (or painted white). As described later, the light guided by the light guide plate 4 and emitted from the surface F4a of the light guide plate 4 is reflected toward the display medium side.

  The edge plate portion 12 is an example of an “edge plate portion”, and as shown in FIGS. 2 and 4, the width direction of the main body portion 11 so as to cover both end portions in the width direction of the light guide plate 4 and the cover plate 5. Are formed respectively on the surfaces F11a and F11b at both ends. In this case, in the signboard apparatus 1 (base 2) of the present example, the insertion groove 13 corresponding to the “insertion groove” is formed on the surfaces F11a and F11b by the end portion in the width direction of the main body 11 and the edge plate 12. Each is formed. Moreover, in the signboard apparatus 1 (base | substrate 2) of this example, the attaching part 14 for attaching the LED attachment tool 30 is formed in the back | inner side of the groove part 13 for insertion, respectively.

  The LED fixture 30 is formed separately from the main material 10 (the first member 20a and the second member 20b) by extrusion molding using aluminum. As shown in FIGS. 3 and 8, the LED fixture 30 includes an attachment portion 31 for attaching to the attachment portion 14 of the main material 10, a substrate attachment portion 32 to which the LED substrate 3 can be attached, and a light guide plate as will be described later. A rib 33 (an example of a “second convex portion”) sandwiched between the cover plate 5 and the cover plate 5 is integrally formed. In addition, in the LED attachment tool 30 of this example, the substrate attachment part 32 is formed also using a part of the attachment part 31. As will be described later, the LED mounting tool 30 is fixed to the main material 10 so that the mounting portion 31 is fitted into the mounting portion 14 in a state where the LED substrate 3 is mounted on the substrate mounting portion 32.

  The LED substrate 3 is an example of a “band-shaped light source”, and as shown in FIG. 7, a long strip-shaped flexible substrate 41, a plurality of LEDs 42 arranged at equal intervals on one surface of the flexible substrate 41, In addition, a protective element such as a resistor and a constant current diode mounted on one surface of the flexible substrate 41 is provided. In this LED substrate 3, each LED 42 is mounted on the flexible substrate 41 so that light can be emitted in a direction intersecting the substrate surface of the flexible substrate 41. In this case, in the signboard device 1 of the present example, the LED board 3 is attached to both ends in the width direction of the base 2 (“attached to at least one of both ends in the width direction of the base”). Example of a configuration of “attached to both ends in the width direction of the substrate”).

  The light guide plate 4 is an example of a “light guide plate” and is formed in a long flat plate shape as shown in FIG. 3, and the surface of the main body 11 in the base 2 as shown in FIGS. Opposed to F11a and F11b (arranged along the surfaces F11a and F11b), the light emitted from each LED substrate 3 is guided to each part in the width direction of the base 2 respectively. In this case, as shown in FIG. 4, the light guide plate 4 is configured so that the light from the LED substrate 3 disposed in the attachment portion 14 on the back side of the insertion groove portion 13 is attached to the LED attachment 30. The both ends in the width direction are attached to the base body 2 in a state of being inserted into the insertion grooves 13 and 13 so as to enter from F4c.

  The cover plate 5 is an example of a “surface plate”, and is formed in a long flat plate shape as shown in FIG. 3 and, as shown in FIGS. 2 and 4 to 6, the surface F 4 b (“ It is attached to the base body 2 so as to be able to hold the display medium together with the light guide plate 4. In this case, in the signboard device 1 of this example, each insertion groove 13 is formed so that the ends of both the light guide plate 4 and the cover plate 5 can be inserted.

  The lid body 6 is an example of a “lid body”, and is configured to cover end portions in the longitudinal direction of the base body 2, the light guide plates 4, 4 and the cover plates 5, 5. In this case, as shown in FIGS. 3 and 6, the signboard device 1 of this example includes two members, an inner member 6 a and an outer member 6 b, which are separately formed by extrusion using aluminum. Yes.

  A pair of inner members 6 a that maintain a state in which a gap S 1 a is generated between the main body 11 and the light guide plate 4 by being inserted between the main body 11 of the base 2 (main material 10) and the light guide plate 4. A pair of ribs (wall-like portions) 25, 25 and a pair of ribs that are inserted between the light guide plate 4 and the cover plate 5 to maintain the gap S1b between the light guide plate 4 and the cover plate 5 (Wall-shaped portions) 26 and 26 (an example of “third convex portion”) are provided. The outer member 6b is formed with a pair of edge plate portions 27 and 27 that cover the surface side of the end portion of the cover plate 5 in the same manner as the edge plate portion 12 of the base 2 (main material 10). It is comprised so that the member 6a can be integrally fitted.

  In manufacturing the signboard device 1, the first member 20a, the second member 20b, the LED fixture 30, the inner member 6a, and the outer member 6b are manufactured by extrusion molding. Further, the third member 20c is manufactured by cutting an aluminum flat plate having an arbitrary thickness, and each light guide plate 4 and each cover plate 5 are manufactured by cutting a resin flat plate having an arbitrary thickness. Next, the main member 10 is manufactured by joining the first member 20 a, the second member 20 b, and the third member 20 c and fixing them with the screw 21 and the nut 22. At this time, the screw head of the screw 21 and the nut 22 protrude from the surfaces F11a and F11b of the main body 11 respectively.

  Subsequently, as shown in FIG. 8, the LED substrate 3 is attached to the substrate attachment portion 32 of the LED attachment 30. In this case, when the adhesive tape is affixed to the flexible substrate 41 of the LED substrate 3, the mount is peeled off and the flexible substrate 41 is affixed to the substrate mounting portion 32. When the adhesive tape is not affixed, an adhesive is used. The flexible substrate 41 is bonded to the substrate mounting portion 32. At this time, since the LED board 3 can be fixed to the LED mounting tool 30 by attaching (or adhering) the LED board 3 to the exposed board mounting portion 32, the person who is unfamiliar with this kind of work. Even if it exists, an operation | work can be completed easily in a short time, without damaging LED board 3. FIG.

  Subsequently, as shown in FIG. 9, the LED fixture 30 is accommodated so that the attachment portion 31 is fitted to the attachment portion 14 from the end portion in the longitudinal direction of the main material 10. As a result, the LED fixture 30 is fixed to the main material 10 to complete the base body 2 and the mounting of the LED substrate 3 to the base body 2 is completed.

  Next, the light guide plates 4 are respectively attached to both surfaces F11a and F11b of the base 2 (main material 10). Specifically, as shown in FIG. 10, the insertion groove portion with the end portion in the width direction of the light guide plate 4 inserted between the main body portion 11 of the main material 10 and the rib 33 of the LED fixture 30. The light guide plate 4 is inserted and attached from the end in the longitudinal direction of the base 2 so as to be inserted into the base 13.

  At this time, the end portion in the width direction of the light guide plate 4 is in contact with the rib 11a of the main material 10 (main body portion 11) as shown in FIG. 4, and the central portion of the light guide plate 4 is in FIG. As shown in FIG. 5, the head of the screw 21 or the nut 22 is in contact (when the light guide plate 4 is completely attached, the cover plate 5 and the lid 6 in each figure are not attached). ) As a result, a gap S1a is generated between the surfaces F11a and F11b of the main body 11 of the base body 2 and the surface F4a of the light guide plate 4.

  Subsequently, as shown in FIG. 11, the cover plate 5 is attached to the base 2 so that both end portions in the width direction are inserted into the insertion grooves 13 of the base 2. At this time, the cover plate 5 is attached so as to be inserted between the edge plate portion 12 of the main material 10 and the rib 33 of the LED attachment 30. As a result, as shown in FIGS. 4 and 5, a gap S1b equal to the thickness of the rib 33 between the surface F4b of the light guide plate 4 and the surface F5 of the cover plate 5 (“gap between the light guide plate and the front plate”). (An example of the case) (when the attachment of the cover plate 5 is completed, the lid body 6 in each drawing is not attached).

  In order to facilitate understanding of the configuration and assembling method of the signboard device 1, illustration and detailed description are omitted, but as an example, the edge plate portion 12 and ribs are attached prior to the attachment of the cover plate 5 to the base 2. A sealing material (an elastic material that can be deformed reversibly) is inserted between the base plate 2 and the base plate 2 (edge plate portion 12) and the cover. The space between the plates 5 can be sealed.

  Next, lids 6 are respectively attached to both ends in the longitudinal direction of the substrate 2, the LED substrates 3, the light guide plates 4, and the cover plates 5. Specifically, first, the ribs 25 and 25 are inserted into the gaps S1a and S1a between the surfaces F11a and F11b of the main body 11 and the surfaces F4a and F4a of the light guide plates 4 and 4, respectively. Is inserted into the gaps S1b and S1b between the surfaces F4b and F4b of the light guide plates 4 and 4 and the surfaces F5 and F5 of the cover plates 5 and 5, respectively. Next, the outer member 6b is attached so as to cover the inner member 6a.

  In order to facilitate understanding of the configuration of the signboard device 1 and the assembling method, illustration and detailed description are omitted, but as an example, prior to the mounting of the outer member 6b, the rib 26 of the inner member 6a By inserting a sealing material (an elastic material that can be reversibly deformed) between the outer member 6b and the edge plate portion 27 and covering the inner member 6a with the outer member 6b in that state, the sealing material is compressed and deformed. Sealing between the lid 6 and the cover plate 5 can be performed. Thus, the attachment of the lid 6 is completed, and the signboard device 1 is completed as shown in FIGS.

  When using this signboard device 1, either one of the lids 6 and 6 is removed, and the display medium is inserted into the gap S <b> 1 b between the light guide plate 4 and the cover plate 5. At this time, since a gap S1b equal to the thickness of the rib 33 in the LED fixture 30 is formed between the light guide plate 4 and the cover plate 5, the display medium can be smoothly inserted into the gap S1b. Next, the removed lid body 6 is mounted again on the base body 2 (main body portion 11). As a result, the display medium can be illuminated from the back side by the light emitted from the LED substrates 3 and 3 and guided by the light guide plate 4.

  In this case, in the signage device 1 of this example, although sealing is performed so that rainwater does not enter the device, a very small amount of rainwater, etc., due to aging deterioration of the sealing material, etc. May enter the device. However, in the signboard device 1 of the present example, the rib 11a provided in the main body 11 and the screw head and the nut 22 of the screw 21 for fixing the first member 20a and the second member 20b are “first convex portion”. ”And the ribs 25, 25 of the lid 6 (inner member 6a) function as convex portions (“ fourth convex portion ”) similar to the“ first convex portion ”, and the surface F11a of the main body portion 11 , F11b and the surface F4a of the light guide plate 4 are formed with a sufficiently wide gap S1a, and this state is suitably maintained.

  Therefore, in the signage device 1 of this example, unlike the signage device disclosed by the applicant in the prior application, even if a small amount of rainwater or the like has entered the device, the intrusion into the gap S1a (such as the intruding rainwater or the like) Not only is the occurrence of capillary phenomenon difficult to occur, but even if rainwater or the like enters the gap S1a, the rainwater or the like that has entered falls easily by its own weight and is easily separated from the gap S1a. For this reason, in the signboard device 1 of this example, it is difficult for an intrusion region such as rainwater to occur between the main body 11 and the light guide plate 4, and when viewed from the surface F4b side of the light guide plate 4, a bright part (LED A situation in which it is recognized that a dark portion (a portion where the light emission amount from the LED substrate 3 is small) and a dark portion (a portion where the light emission amount from the substrate 3 is large) is mixed is preferably avoided.

  When rainwater or the like enters the gap S1a, a linear rainwater or the like intrusion region is generated around the rib 11a, and a dotted rainwater or the like intrusion region is generated around the screw head of the screw 21 or the nut 22. Sometimes. However, since these linear or dotted rainwater intrusion areas are extremely narrow, the influence of such rainwater intrusion areas is extremely small. This makes it possible to illuminate the display medium with uniform brightness over the entire area.

  In the sign device 1 of this example, the rib 33 provided on the LED fixture 30 functions as a “second convex portion”, and the ribs 26 and 26 of the lid 6 (inner member 6a) are “third convex”. A sufficiently large gap S1b is formed between the surface F4b of the light guide plate 4 and the surface F5 of the cover plate 5, and the state is suitably maintained.

  Therefore, in the signboard device 1 of the present example, even if a small amount of rainwater or the like enters the device, not only does the intrusion of rainwater or the like into the gap S1b (occurrence of capillary action) occurs, but even in the gap S1b. Even if rainwater or the like enters the rainwater, the rainwater or the like that has entered easily falls due to its own weight and easily leaves the gap S1b. For this reason, in the signboard device 1 of the present example, an intrusion region such as rainwater is hardly generated between the light guide plate 4 and the cover plate 5, and also in this respect, when viewed from the surface side of the cover plate 5. The situation where it is recognized that a bright part (part where the amount of light emitted from the LED board 3 is large) and a dark part (part where the amount of light emitted from the LED board 3 is small) is mixed is preferably avoided. Has been.

  Thus, according to this signboard device 1, the main body 11 and the light guide plate 4 come into contact with the surface F 4 a of the light guide plate 4 on one surface (surfaces F 11 a and F 11 b) facing the light guide plate 4 of the main body 11 in the base 2. Even if rainwater or the like enters the signboard device 1 by arranging the “first protrusions (ribs 11a, screw heads of the screws 21 and nuts 22)” that form the gap S1a between the main body 11 and the light guide plate 4 (in the gap S1a) are unlikely to enter rainwater or the like due to capillary phenomenon, and even if rainwater or the like enters between the main body 11 and the light guide plate 4 (in the gap S1a), Invasion of rainwater or the like easily falls off due to its own weight and easily leaves the gap S1a, so that it is preferable to avoid the occurrence of a bright part and a dark part due to the presence of an intrusion area such as rainwater and a non-intrusion area such as rainwater. CanAs a result, even if rainwater or the like enters the signboard device 1 in the lit state, it is possible to avoid a situation in which the aesthetic appearance is greatly impaired and to make the display medium visible with uniform brightness throughout the entire area.

  Further, according to the sign device 1, a plurality of “base member members (first member 20 a, second member 20 b, and third member 20 c)” are joined and integrated to form a base plate 2 having a long plate in front view. In addition, the screw head and the nut 22 of the screw 21 for fixing each “base component member” are protruded from the main body portion 11 to function as the “first convex portion”. With the split structure, the “main material” can be manufactured more easily than when the main structure is integrated, thereby sufficiently reducing the component cost of the main material 10 and sufficiently increasing the manufacturing cost of the signage device 1. In addition, the presence of the gap S1a formed by the screw head of the screw 21 and the nut 22 causes a bright portion and a dark portion due to the presence of a rainwater intrusion region and a rainwater non-intrusion region. Consisting of a can be suitably avoided.

  Furthermore, according to the sign device 1, the state where the gap S <b> 1 b is generated between the light guide plate 4 and the cover plate 5 while being positioned between the light guide plate 4 and the cover plate 5 is maintained, and together with the main body 11. By providing the “second convex portion (rib 33)” that holds the light guide plate 4 and holds the cover plate 5 together with the edge plate portion 12, the rib 33 is also provided between the light guide plate 4 and the cover plate 5. Since a sufficiently wide gap S1b having the same thickness as the thickness can be generated, the display medium can be easily inserted between the light guide plate 4 and the cover plate 5 (in the gap S1b). Even if rainwater or the like enters the signboard device 1 having the structure provided, it is difficult for rainwater or the like to enter between the light guide plate 4 and the cover plate 5 (in the gap S1b) due to the capillary phenomenon. Between cover plates 5 (in the gap S1b) Even if rainwater or the like has entered, the intruded rainwater or the like falls by its own weight and easily leaves the gap S1b, so that a bright portion and a dark portion are generated due to the presence of the rainwater and other non-intrusion regions. It can be avoided suitably. As a result, even if rainwater or the like enters the lighting signboard device 1 in the signboard device 1 provided with the cover plate 5, a situation in which the aesthetic appearance is greatly impaired can be avoided, and the display medium can be provided with uniform brightness throughout the entire area. It can be visually confirmed.

  Further, according to the sign device 1, the lid 6 (inner member 6 a and outer member 6 b) that covers the longitudinal ends of the base body 2, the light guide plate 4, and the cover plate 5 is attached to the light guide plate 4 and the cover plate 5. By arranging the “third convex portion (rib 26)” that is inserted between the light guide plate 4 and the cover plate 5 and maintains the state in which the gap S1b is generated, the light guide plate 4 and the light guide plate 4 are connected only by the rib 33. Unlike the configuration in which the gap S1b is generated between the cover plate 5 and the cover plate 5, the state in which the gap S1b is generated by the presence of the ribs 26 can be suitably maintained, so that the display medium is illuminated with uniform brightness throughout the entire area. The state that can be visually recognized can be suitably maintained over a long period of time.

  Next, another embodiment of the “display device” will be described. In addition, about the component which has a function similar to said signboard apparatus 1, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

  A signboard device 1A shown in FIG. 12 is another example of a “display device”, and in the same manner as the signboard device 1 described above, a display medium (advertising medium: an arbitrary design or symbol printed on paper or film) : Not shown) can be illuminated and displayed from the back side. This signboard device 1A includes a base body 2A in place of the base body 2 in the signboard apparatus 1, and a resin lid body (cap) 6A in place of the lid body 6 (inner member 6a and outer member 6b) in the signboard device 1. The other constituent elements are configured in the same manner as the corresponding constituent elements of the signboard device 1.

  The base body 2A is another example of the “base body”, and is formed in the shape of a long plate in front view as a whole. The base 2A includes a main material 10A and four LED fixtures 30. In this case, as shown in FIGS. 12, 13, and 16, in the signboard device 1 </ b> A (base 2 </ b> A) of this example, the first member 20 d (“base constituent member” as “first base member”) constituting one side in the width direction. An example of “one member” and a second member 20e (an example of “second member” as a base member) constituting the other side portion in the width direction are joined to each other, and a screw 21 and a nut 22 (“fastening”) are joined. It is formed in the shape of a long plate in a front view by being integrated by an example of “member”.

  In addition, the first member 20d is integrated with the portion constituting the long plate-like main body portion 11 in a state of being integrated with the second member 20e, and the end surfaces F11a and F11b in the width direction of the main body portion 11, respectively. The provided pair of edge plate portions 12 and 12 are integrally formed by extrusion using aluminum. Further, the second member 20e is a pair of edges provided on a portion constituting the main body portion 11 in an integrated state with the second member 20a and on end surfaces F11a and F11b in the width direction of the main body portion 11, respectively. The plate portions 12 and 12 are integrally formed by extrusion using aluminum.

  In this example, in order to facilitate understanding of the configuration of the signboard device 1A, the two members constituting the main material 10A will be referred to as the first member 20d and the second member 20e. The first member 20d and the second member 20e are formed of a single kind of member having the same material, shape, size and the like.

  As shown in FIGS. 13 and 15, the light guide plate 4 in a state of being attached to the base 2 </ b> A (main material 10 </ b> A), as will be described later, at a portion that becomes the main body portion 11 of the first member 20 d and the second member 20 e. An example of a rib 11b (an example of a “first protrusion”) that forms a gap S1a (an example of a “gap”) between the main body 11 and the light guide plate 4 in contact with a surface F4a (an example of a “one side on the back side”). ) Are formed on the surfaces F11a and F11b facing the surface F4a of the light guide plate 4, respectively. Further, as shown in FIGS. 13 and 14, the end portion of the main body portion 11 (the portion where the end portion of the light guide plate 4 comes into contact later) has a step portion 11 c (“first” having the same height as the rib 11 b described above. Another example of the “projection” is provided on each of the surfaces F11a and F11b.

  Furthermore, as shown in FIGS. 13 and 16, in the signboard device 1 </ b> A (base 2 </ b> A) of the present example, both members are made to penetrate through the joining portions of the first member 20 d and the second member 20 e in the thickness direction of the main body 11. A screw head (an example of a “fastening member head”) and a nut 22 (another example of the “fastening member head”) for fixing the screws 20a and 20b are similar to the rib 11b described above. It protrudes from the main body 11 so as to function as “one convex part”.

  The lid 6A is a member made of a resin material that covers ends in the longitudinal direction of the base 2A (main material 10A and the LED fixture 30), each LED substrate 3, each light guide plate 4, and each cover plate 5. A fixing screw (not shown) is screwed into a screwed portion (not shown) formed in the main body portion 11 of 2A and is fixed to the main body portion 11.

  In manufacturing the signboard device 1A, the first member 20d, the second member 20e, and the LED fixtures 30 are manufactured by extrusion molding. In addition, each light guide plate 4 and each cover plate 5 are manufactured by cutting a resin flat plate having an arbitrary thickness, and a lid body 6A is manufactured by injection molding. Next, the main member 10A is manufactured by joining the first member 20d and the second member 20e and fixing them with the screw 21 and the nut 22. At this time, the screw head of the screw 21 and the nut 22 protrude from the surfaces F11a and F11b of the main body 11 respectively.

  Subsequently, as shown in FIG. 8, the LED fixture 30 in which the LED substrate 3 is attached to the substrate attachment portion 32 is attached to the main material 10 </ b> A. At this time, the LED fixture 30 is accommodated so that the attachment portion 31 is fitted to the attachment portion 14 from the end in the longitudinal direction of the main material 10A. Thereby, the LED attachment 30 is fixed to the main material 10A, the base 2A is completed, and the LED substrate 3 is attached to the base 2A.

  Next, the light guide plates 4 are attached to both surfaces F11a and F11b of the base 2A (main material 10A). Specifically, the base body is inserted so that the end portion in the width direction of the light guide plate 4 is inserted between the main body portion 11 of the main material 10 </ b> A and the rib 33 of the LED fixture 30. The light guide plate 4 is inserted and attached from the end in the longitudinal direction of 2A.

  At this time, the end portion in the width direction of the light guide plate 4 is in contact with the step portion 11c of the main material 10A (main body portion 11) as shown in FIG. 14, and the center portion of the light guide plate 4 is in FIG. As shown in FIG. 5, the intermediate portion between the portion of the light guide plate 4 that is in contact with the head portion of the screw 21 or the nut 22 and the portion of the light guide plate 4 that is in contact with the step portion 11c and the portion of the screw 21 that is in contact with the head portion of the screw 21 However, it will be in the state which contact | connected the rib 11b, as shown in FIG. 15 (When the attachment of the light-guide plate 4 is completed, the cover board 5 and the cover body 6A in each figure will be in the unmounted state). As a result, gaps S1a are generated between the surfaces F11a and F11b of the main body 11 of the base 2A and the surface F4a of the light guide plate 4, respectively.

  Subsequently, the cover plate 5 is attached to the base 2A so that both end portions in the width direction are inserted into the insertion grooves 13 of the base 2A. At this time, the cover plate 5 is attached so as to be inserted between the edge plate portion 12 of the main material 10 </ b> A and the rib 33 of the LED fixture 30. As a result, as shown in FIGS. 14 to 16, a gap S1b equal to the thickness of the rib 33 is generated between the surface F4b of the light guide plate 4 and the surface F5 of the cover plate 5 (the cover plate 5 is attached). At the time of completion, the lid body 6A in each drawing is not attached). Next, lids 6 </ b> A are attached to both ends in the longitudinal direction of the base body 2 </ b> A, each LED substrate 3, each light guide plate 4, and each cover plate 5. As described above, the signboard apparatus 1A is completed as shown in FIG.

  When using this signboard device 1A, either one of the lids 6A, 6A is removed, and the display medium is inserted into the gap S1b between the light guide plate 4 and the cover plate 5. At this time, since a gap S1b equal to the thickness of the rib 33 in the LED fixture 30 is formed between the light guide plate 4 and the cover plate 5, the display medium can be smoothly inserted into the gap S1b. Next, the removed lid 6A is mounted on the base 2A (main body 11) again. As a result, the display medium can be illuminated from the back side by the light emitted from the LED substrates 3 and 3 and guided by the light guide plate 4.

  In this case, in the signage device 1A of the present example, as in the signage device 1 described above, the sealing is performed so that rainwater does not enter the device, but due to the aging of the sealing material, etc. There is a risk that a very small amount of rainwater or the like may enter the apparatus. However, in the signboard device 1A of the present example, the rib 11b and the stepped portion 11c provided in the main body 11 and the screw heads and nuts 22 of the screws 21 for fixing the first member 20d and the second member 20e are “ A sufficiently large gap S <b> 1 a is formed between the surfaces F <b> 11 a and F <b> 11 b of the main body 11 and the surface F <b> 4 a of the light guide plate 4. Thereby, it is possible to achieve the same effect as the signboard device 1.

  Thus, according to this signboard device 1A, the main body 11 and the light guide plate 4 come into contact with the surface F4a of the light guide plate 4 on one surface (surfaces F11a and F11b) of the base 2A facing the light guide plate 4 of the main body 11. In the same manner as the signboard device 1 described above, the “first protrusion (rib 11b, stepped portion 11c, screw head of the screw 21 and nut 22)” that forms the gap S1a between the signboard 1 and the signboard 1 is provided. Even if rainwater or the like enters the device 1A, it is difficult for rainwater or the like to enter between the main body 11 and the light guide plate 4 (in the gap S1a) due to capillary action, and between the main body 11 and the light guide plate 4. Even if rainwater or the like enters (in the gap S1a), the intruded rainwater or the like falls by its own weight and easily leaves the gap S1a. It can be suitably avoid a state in which has occurred. Thereby, even if rainwater or the like enters the lighting signboard device 1A, it is possible to avoid a situation in which the aesthetic appearance is greatly impaired and to illuminate the display medium with uniform brightness throughout the entire area.

  Moreover, according to this signboard device 1A, a plurality of “base member members (first member 20d and second member 20e)” are joined and integrated to form a long plate-like base body 2A. By adopting a configuration in which the screw heads of the screws 21 and the nuts 22 for fixing the respective “base member constituting members” are protruded from the main body portion 11 to function as “first convex portions”, the same as the signboard device 1 described above. Since the main material 10A has a divided structure, it can be manufactured more easily than when the “main material” has an integral structure, thereby sufficiently reducing the component cost of the main material 10A and the signboard device 1A. In addition to sufficiently reducing the manufacturing cost, the presence of the gap S1a formed by the screw head of the screw 21 and the nut 22 makes it possible to obtain a bright portion due to the presence of a rainwater intrusion area and a rainwater non-intrusion area. It can be suitably avoid a state where the the dark part occurs.

  Furthermore, according to this signboard device 1A, the state in which the gap S1b is generated between the light guide plate 4 and the cover plate 5 while being positioned between the light guide plate 4 and the cover plate 5 is maintained, and together with the main body 11 By providing the “second convex portion (rib 33)” that holds the light guide plate 4 and holds the cover plate 5 together with the edge plate portion 12, the light guide plate 4 and the cover are provided in the same manner as the signboard device 1 described above. Since a sufficiently wide gap S1b having the same thickness as the rib 33 can be formed between the plate 5 and the plate 5, the display medium can be easily inserted between the light guide plate 4 and the cover plate 5 (in the gap S1b). In addition, even if rainwater or the like enters the signboard device 1A having the cover plate 5, the rainwater or the like enters the space between the light guide plate 4 and the cover plate 5 (in the gap S1b) due to a capillary phenomenon. Is difficult to occur, and the light guide plate 4 Even if rainwater or the like enters between the cover plates 5 (in the gap S1b), the rainwater or the like that has entered falls easily under its own weight and easily leaves the gap S1b. Therefore, it is possible to suitably avoid the occurrence of a bright part and a dark part. Thus, even if rainwater or the like enters the lit signboard device 1A in the signboard device 1A provided with the cover plate 5, a situation in which the aesthetic appearance is greatly impaired can be avoided, and a display medium can be obtained with uniform brightness throughout the entire area. It can be visually confirmed.

  Next, still another embodiment of the “display device” will be described.

  A signboard device 51 shown in FIGS. 17 to 21 is another example of a “display device”, and can display a display medium (advertisement medium) from the back side while being attached to an attachment target such as a utility pole. It is configured as follows. Specifically, the signboard device 51 supplies power to the base body 52, the pair of LED substrates 3, the light guide plate 54, the cover plate 55, the pair of lids 56, and the LED substrate 3 (controls lighting). And a controller unit (not shown). In addition, about said LED board 3, since it is the same as that of the LED board 3 in signboard apparatus 1 and 1A, detailed description is abbreviate | omitted.

  The base 52 is another example of the “base”, and is formed in the shape of a long plate as a whole when viewed from the front. The base 52 includes a main material 60 and a pair of LED fixtures 70. The main material 60 is configured by integrally forming a main body 61 and a pair of edge plate portions 62 and 62 provided at both ends of the main body 61 by extrusion molding using aluminum.

  The main body 61 is another example of the “main body”, and is curved so that the cross-sectional shape in the width direction (left-right direction in FIG. 17) becomes an arc shape in accordance with the shape of the peripheral surface to be attached. Yes. In this case, in the signboard device 51 (base 52) of the present example, the surface F61 on the front surface side of the main body 61 is mirror-finished or painted white, so that it is guided by the light guide plate 54 as described later. The light emitted to the surface F54a side of the light guide plate 54 is reflected toward the surface side of the signboard device 51. As shown in FIGS. 17, 19, and 20, the surface F <b> 61 of the light guide plate 54 attached to the base body 52 (main material 60) (described later) Another example of the ribs 61a and 61b (another example of the “first protrusion”) that forms a gap S51a (another example of the “gap”) between the main body 61 and the light guide plate 54 in contact with the other example of the “one surface”. ) Is formed.

  The edge plate portion 62 is another example of the “edge plate portion”. As shown in FIGS. 17 and 20, the edge plate portion 62 covers the both ends of the light guide plate 54 and the cover plate 55 in the width direction. It is formed at both ends in the width direction. In this case, in the signboard device 51 (base 52) of this example, the insertion groove portion 63 corresponding to the “insertion groove portion” is formed by the end portion in the width direction of the main body portion 61 and the edge plate portion 62. Moreover, in the signboard device 51 (base 52) of the present example, as shown in FIG. 20, the LED fixture 70 is attached to the inner surface of the edge plate portion 62 (the surface facing the main body portion 61 in the edge plate portion 62). A mounting convex portion 62a is formed.

  The LED fixture 70 is formed separately from the main material 60 (the main body portion 61 and the edge plate portion 62) by extrusion molding using aluminum. As shown in FIG. 20, the LED attachment 70 includes an attachment portion 71 for attaching to the edge plate portion 62 (attachment convex portion 62a), a substrate attachment portion 72 to which the LED substrate 3 can be attached, and as described later. Ribs 73 sandwiched between the light guide plate 54 and the cover plate 55 are integrally formed. As will be described later, the LED fixture 70 is disposed in the insertion groove 63 with the LED substrate 3 attached to the substrate attachment portion 72, and the attachment projection 71a of the edge plate portion 62 is fitted into the attachment portion 71. It fixes to the edge board part 62 (main material 60) so that it may match.

  The light guide plate 54 is another example of the “light guide plate”, and is curved along the surface F 61 of the main body 61 in the base 52 as shown in FIG. As shown in FIG. 17, the light guide plate 54 is disposed on the surface F 61 side of the main body 61 in the base 52, and guides light emitted from the LED substrate 3 to each part in the width direction of the base 52. In this case, as shown in FIG. 20, the light guide plate 54 is attached to the LED fixture 70 so that the light from the LED substrate 3 disposed in the insertion groove 63 is incident from the end face F54c. Both ends in the width direction are attached to the base 52 in a state where the both ends are inserted into the insertion grooves 63, 63.

  The cover plate 55 is another example of the “surface plate”. As shown in FIG. 17, the cover plate 55 is curved along the width direction in the same manner as the light guide plate 54 described above, and is on the surface F54b side of the light guide plate 54. And is attached to the base 52 so that the display medium can be held together with the light guide plate 54. In this case, in the signboard device 51 of this example, the insertion groove portion 63 is formed so that the ends of both the light guide plate 54 and the cover plate 55 can be inserted.

  The lid 56 is a member (other example of “lid”) that covers the base 52 (the main material 60 and the LED fixture 70), the LED substrates 3 and 3, the light guide plate 54, and the ends in the longitudinal direction of the cover plate 55. However, as shown in FIG. 18, the base material 52, the light guide plate 54, and the cover plate 55 are formed in an arc shape by a resin material in accordance with the curved shapes. The lid 56 is maintained in a state in which a gap S51b (see FIGS. 17 and 19 to 21) is generated between the light guide plate 54 and the cover plate 55 by being inserted between the light guide plate 54 and the cover plate 55. A plurality of ribs (wall-like portions) 56a, 56a... (Another example of the “third convex portion”) are provided.

  In manufacturing the signboard device 51, the main material 60 and the LED fixture 70 are respectively manufactured by extrusion molding. In addition, a light guide plate 54 and a cover plate 55 having an arc cross section are manufactured by heating and pressing a resin flat plate having an arbitrary thickness, and a lid body 56 is manufactured by injection molding. Next, after attaching the LED substrate 3 to the substrate attachment portion 72 of the LED attachment 70, the attachment convex portion 62 a of the edge plate portion 62 in the main material 60 is fitted to the attachment portion 71 of the LED attachment 70. The LED fixture 70 is housed and fixed in the insertion groove 63 of the main material 60. Thereby, the LED fixture 70 is fixed to the main material 60 (edge plate portion 62), the base body 52 is completed, and the LED board 3 is attached to the base body 52.

  Next, the light guide plate 54 is attached to the base 52 so that both ends in the width direction are inserted into the insertion groove 63. Specifically, the base body is inserted so that the end portion in the width direction of the light guide plate 54 is inserted between the main body portion 61 in the main material 60 and the rib 73 in the LED fixture 70. The light guide plate 54 is inserted and attached from the end in the longitudinal direction at 52.

  At this time, the central portion in the width direction of the light guide plate 54 is in contact with the rib 61a of the main material 60 (main body portion 61) as shown in FIG. As shown in FIG. 20, the portion is in contact with the rib 61b (when the light guide plate 54 is completely attached, the cover plate 55 and the lid 56 in both figures are not attached). . Accordingly, a gap S51a is generated between the surface F61 of the main body 61 of the base 52 and the surface F54a of the light guide plate 54.

  Subsequently, the cover plate 55 is attached to the base 52 so that both end portions in the width direction are inserted into the insertion groove 63 of the base 52. At this time, the cover plate 55 is attached so as to be inserted between the edge plate portion 62 of the main material 60 and the rib 73 of the LED fixture 70. As a result, as shown in FIGS. 17, 19, and 20, a gap S51b equal to the thickness of the rib 73 is formed between the surface F54b of the light guide plate 54 and the surface F55 of the cover plate 55 (the cover plate 55 At the time when the attachment is completed, the lid 56 in each drawing is not attached).

  In order to facilitate understanding of the configuration and assembling method of the signboard device 51, illustration and detailed description are omitted, but as an example, the edge plate portion 62 and the rib are attached before the cover plate 55 is attached to the base 52. A sealing material (an elastic material that can be reversibly deformed) is inserted between the base member 52 and the base plate 52 (edge plate portion 62) and the cover. The space between the plates 55 can be sealed.

  Next, lids 56 are respectively attached to both ends of the base 52, the LED substrates 3 and 3, the light guide plate 54 and the cover plate 55 in the longitudinal direction. At this time, the lid body 6A is attached to the base 52 so that each rib 56a is inserted into the gap S51a between the surface F61 of the main body 61 and the surface F54a of the light guide plate 54. Thereby, the signboard device 51 is completed as shown in FIG.

  When using this signboard device 51, either one of the lids 56, 56 is removed, and the display medium is inserted into the gap S51b between the light guide plate 54 and the cover plate 55. At this time, a gap S51b equal to the thickness of the rib 73 in the LED fixture 70 is formed between the light guide plate 54 and the cover plate 55, so that the display medium can be smoothly inserted into the gap S51b. Next, the removed lid 56 is attached to the base 52 (main body 61) again. As a result, the display medium can be illuminated from the back side by the light emitted from the LED substrates 3 and 3 and guided by the light guide plate 54.

  In this case, in the signage device 51 of the present example, the sealing material is sealed so that rainwater does not enter the device in the same manner as the signage devices 1 and 1A described above. As a result, a very small amount of rainwater or the like may enter the apparatus. However, in the signboard device 51 of this example, the ribs 61 a and 61 b provided on the main body 61 function as “first convex portions”, and between the surface F 61 of the main body 61 and the surface F 54 a of the light guide plate 54. A sufficiently wide gap S51a is formed.

  Therefore, in the signboard device 51 of this example, even if a small amount of rainwater or the like enters the apparatus, as in the signboard apparatuses 1 and 1A described above, the intrusion into the gap S51a of the intruded rainwater or the like (capillary phenomenon occurs) ) Is not easily generated, and even if rainwater or the like enters the gap S51a, the rainwater or the like that has entered falls easily due to its own weight and is easily separated from the gap S51a. For this reason, in the signboard device 51 of the present example, an intrusion region such as rainwater hardly occurs between the main body 61 and the light guide plate 54, and when viewed from the surface F54b side of the light guide plate 54, a bright part (LED A situation in which it is recognized that a dark portion (a portion where the light emission amount from the LED substrate 3 is small) and a dark portion (a portion where the light emission amount from the substrate 3 is large) is mixed is preferably avoided.

  When rainwater or the like enters the gap S51a, a linear rainwater or the like intrusion region may be generated around the ribs 61a and 61b. However, since these linear rainwater intrusion areas are extremely narrow, the influence of such rainwater intrusion areas is extremely small. This makes it possible to illuminate the display medium with uniform brightness over the entire area.

  In the sign device 51 of the present example, the rib 73 provided on the LED fixture 70 functions as a “second convex portion”, and each rib 56a of the lid 6A functions as a “third convex portion”. A sufficiently wide gap S51b is formed between the surface F54b of the light guide plate 54 and the surface F55 of the cover plate 55, and this state is suitably maintained.

  Therefore, in the signage device 51 of this example, even if a small amount of rainwater or the like enters the device, not only does the intrusion of rainwater or the like enter the gap S51b (occurrence of a capillary phenomenon), but even in the gap S51b. Even if rainwater or the like enters the rainwater, the rainwater or the like that has entered easily falls due to its own weight and easily leaves the gap S51b. For this reason, in the signboard device 51 of this example, it is difficult for an intrusion region such as rainwater to occur between the light guide plate 54 and the cover plate 55, and also in this respect, when viewed from the front surface side of the cover plate 55. The situation where it is recognized that a bright part (part where the amount of light emitted from the LED board 3 is large) and a dark part (part where the amount of light emitted from the LED board 3 is small) is mixed is preferably avoided. Has been.

  As described above, according to the signboard device 51, the main body 61 and the light guide plate 54 are in contact with the surface F 54 a of the light guide plate 54 on one surface (surface F 61) facing the light guide plate 54 of the main body 61 in the base 52. Even if rainwater or the like enters the signboard device 51 in the same manner as the above-described signboard devices 1 and 1A by arranging the “first convex portions (ribs 61a and 61b)” that form the gap S51a therebetween. Further, it is difficult for rainwater or the like to enter between the main body 61 and the light guide plate 54 (in the gap S51a) due to capillary action, and rainwater or the like has entered between the main body 61 and the light guide plate 54 (in the gap S51a). However, since intruded rainwater or the like falls by its own weight and easily leaves the gap S51a, a bright portion and a dark portion are generated due to the presence of the rainwater intrusion region and the rainwater non-intrusion region. It is possible to avoid to apply. As a result, even if rainwater or the like enters the lighting signboard device 51, it is possible to avoid a situation in which the aesthetic appearance is greatly impaired and to illuminate the display medium with uniform brightness throughout the entire area.

  Further, according to the signboard device 51, the state where the gap S51b is generated between the light guide plate 54 and the cover plate 55 while being positioned between the light guide plate 54 and the cover plate 55 is maintained. By providing the “second convex portion (rib 73)” that holds the light guide plate 54 and holds the cover plate 55 together with the edge plate portion 62, the light guide plate 54 is similar to the signboard devices 1 and 1A described above. A sufficiently wide gap S51b having the same thickness as the rib 73 can be formed between the light guide plate 54 and the cover plate 55 (within the gap S51b). In addition to being inserted into the signboard device 51 having the cover plate 55, even if rainwater or the like enters the signboard device 51, the capillarity is caused between the light guide plate 54 and the cover plate 55 (in the gap S51b). Intrusion of water or the like is unlikely to occur, and even if rainwater or the like enters between the light guide plate 54 and the cover plate 55 (in the gap S51b), the rainwater or the like that has entered falls easily due to its own weight and is easily separated from the gap S51b. In addition, it is possible to suitably avoid the occurrence of a bright part and a dark part due to the presence of an intrusion area such as rainwater and a non-intrusion area such as rainwater. As a result, even if rainwater or the like enters the lighting signboard device 51 in the signboard device 51 provided with the cover plate 55, a situation in which the aesthetic appearance is greatly impaired can be avoided, and the display medium can be uniformly brightened in the entire area. It can be visually confirmed.

  Furthermore, according to this signboard device 51, the light guide plate 54 and the cover plate 55 are inserted between the light guide plate 54 and the cover plate 55 into the lid body 56 covering the longitudinal ends of the base 52, the light guide plate 54 and the cover plate 55. Since the “third convex portion (rib 56a)” that maintains the state in which the gap S51b is generated between the cover plates 55 is provided, it is guided only by the rib 73 in the same manner as the signboard devices 1 and 1A described above. Unlike the configuration in which the gap S51b is generated between the optical plate 54 and the cover plate 55, the state in which the gap S51b is generated by the presence of the rib 56a can be suitably maintained. A state in which the medium can be visually recognized can be suitably maintained over a long period of time.

  The configuration of the “display device” is not limited to the configuration example of the sign devices 1, 1 </ b> A, 51. For example, the description has been given of the example in which the ribs 11 a and 11 b and the step portion 11 c that are in linear contact with the light guide plate 4 and the ribs 61 a and 61 b that are in linear contact with the light guide plate 54 are provided as “first convex portions”. However, the “first convex portion” is not limited to a shape that is in linear contact with the “light guide plate”, and the “first convex portion” is disposed so as to be in point contact with the “light guide plate”. The “first convex portion” that is in linear contact with the “light guide plate” and the “first convex portion” that is in point contact with the “light guide plate” may be mixed and disposed.

  In addition, the configuration of the signboard device 1, 1 </ b> A in which the screw head of the screw 21 and the nut 22 that integrally fix the “base member” and the nut 22 function as the “first convex portion” has been described as an example. The head portion of the rivet is not limited to the screw head of the screw 21 or the nut 22, and a configuration in which a rivet is used as the “fastening member” is adopted. ) "Can also be adopted. Further, in the case of adopting a configuration in which the “first member” and the “second member” are integrally fixed by the “fastening member”, the “head portion of the fastening member” does not function as the “first convex portion” (“ A configuration in which the “head of the fastening member” does not contact the “light guide plate” can also be employed.

  Further, a configuration in which at least one of the “second convex portion” and the “third convex portion” is arranged without arranging the “first convex portion”, and the “second convex portion” is arranged without arranging the “second convex portion”. A configuration in which at least one of “one convex portion” and “third convex portion” is arranged, and at least one of “first convex portion” and “second convex portion” without arranging “third convex portion” It is also possible to employ a configuration for disposing.

  In addition, the signboard devices 1 and 1A in which the LED boards 3 are disposed at both ends of the surface F11a of the base 2, 2A (main body 11) and both ends of the surface F11b of the base 2, 2A (main body 11), The signboard device 51 in which the LED substrates 3 are respectively disposed on both ends of the surface F61 of the base body 52 (main body portion 61) has been described as an example. However, a case where a sufficient amount of light can be emitted from the “band light source” In the case where the width of the “base” is narrow, a “display device” can be configured by disposing a “band-like light source body” on only one of both end portions in the width direction of the “base” (not shown). ).

  In addition, a configuration in which the LED substrate 3 is attached to the base body 2, 2 </ b> A via the LED fixture 30 formed separately from the main material 10, 10 </ b> A, or an LED fixture 70 formed separately from the main material 60. The configuration in which the LED substrate 3 is attached to the base 52 has been described as an example. However, instead of such a configuration, a configuration in which the “band light source” is directly attached to the “base” may be employed.

  Furthermore, the configuration of the signboard devices 1, 1 </ b> A, 51 provided with the cover plates 5, 55 has been described as an example, but without providing the “surface plate (cover plates 5, 55)” It is also possible to adopt a configuration in which the “display medium” attached to the front side is left exposed. Further, the configuration including the LED substrate 3 having the LEDs 42 has been described as an example. However, various “band-shaped light source bodies” including a fluorescent tube or the like as a light source can be employed to configure a “display device”. .

1, 1A, 51 Signage device 2, 2A, 52 Base 3 LED board 4, 54 Light guide plate 5, 55 Cover plate 6, 56 Lid 10, 10A, 60 Main material 11, 61 Main body 11a, 11b, 25, 26 , 33, 56a, 61a, 61b, 73 Rib 11c Stepped portion 12, 62 Edge plate portion 13, 63 Insertion groove portion 14 Mounting portion 20a, 20d First member 20b, 20e Second member 20c Third member 21 Screw 22 Nut 30 , 70 LED fixture 31, 71 Attachment portion 32, 72 Substrate attachment portion F4a, F4b, F5, F11a, F11b, F54a, F54b, F55, F61 surface F4c, F54c End surface S1a, S1b, S51a, S51b Clearance

Claims (4)

A base plate having a long plate shape in front view, a strip-like light source body attached to at least one of both end portions in the width direction of the base body, and disposed along the one surface side of the base body and attached to the base body and the strip-like light source body A light guide plate that guides light emitted from a light source body to each part in the width direction of the substrate, and a display device configured to be able to dispose a display medium on the surface side of the light guide plate,
The base body includes a main body having a long plate shape when viewed from the front, and a pair of edge plates that are provided at both end portions in the width direction of the main body portion and cover the surface side of both end portions in the width direction of the light guide plate. A pair of insertion groove portions into which the light guide plate can be inserted are formed by the both end portions and the both edge plate portions of the main body portion,
The strip-shaped light source body is accommodated in at least one of the pair of insertion grooves,
The light guide plate is in a state in which both end portions in the width direction are inserted into the insertion groove portions so that light from the band-shaped light source housed in the insertion groove portion can enter from an end surface in the width direction. Attached to the base body,
The main body portion is in contact with one surface on the back side of the light guide plate inserted into the both insertion groove portions, and a first convex portion that forms a gap between the main body portion and the light guide plate is connected to the main body portion. A display device arranged and arranged on one surface facing an optical plate.   The base body is formed by joining together a plurality of base member constituting members including at least a first member constituting a part on one side in the width direction and a second member constituting a part on the other side in the width direction. The heads of the fastening members that are formed into a long plate shape when viewed from the front and that pass through the joining portions of the respective base component members in the thickness direction of the main body portion to fix the respective base component members. The display device according to claim 1, wherein a portion is protruded from the main body so as to function as the first convex portion. A surface plate that is disposed along one surface of the light guide plate and that holds the display medium together with the light guide plate;
The base is formed with both insertion grooves so that the light guide plate and the surface plate can be inserted, and is positioned between the light guide plate and the surface plate to create a gap between the light guide plate and the surface plate. The display device according to claim 1, further comprising a second convex portion that maintains the state and holds the light guide plate together with the main body portion, and holds the surface plate together with the edge plate portion. A lid that covers end portions in the longitudinal direction of the base body, the light guide plate, and the surface plate,
The lid is provided with a third protrusion that is inserted between the light guide plate and the surface plate and maintains a state in which a gap is generated between the light guide plate and the surface plate. The display device according to claim 3.

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