JP2003325773A - Lens member of luminous display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lens member of a luminous display device that facilitates parts management and can be produced in volume and lowers production cost. <P>SOLUTION: A synthetic resin lens member 48 covers a luminescence source 47a and transmits the light of the luminescence source 47a, a light scattering layer 68 is integrally formed by treating at least the surface or the reverse of a lens member body 48a by the printing of a light transmitting material 69 provided by equally scattering a light scattering material scattering light. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens member of a light emitting display device used in a gaming machine such as a pachinko gaming machine.

[0002]

2. Description of the Related Art Conventionally, for example, a pachinko gaming machine is provided with various light emitting display devices which are lit or blinked in many colors in a visible portion on the front side thereof in order to enhance the effect of illumination and to enhance the interest of the game. I am trying to install it. Some of the light emitting display devices are described below. That is,
A diffuser plate for diffusing transmitted light is arranged between the light emitting source and a translucent lens member covering the light emitting source, and the light from the light emitting source is diffused by the diffuser plate so that the entire surface of the lens member. Or a first cover and a second cover each having a diffusion layer in which light from the light-emitting source is appropriately diffused are molded separately from the lens member body. There is a structure in which first and second covers are overlapped with each other so that the front surface emits light uniformly.

[0003]

However, a diffuser plate is formed separately from the lens member body in this way, or two covers having a diffusion layer are formed, such as a first cover and a second cover, and these are stacked. Since they are assembled together, the number of parts in the assembly is large and parts management is not easy, and since the manufacturing process requires additional steps, mass production and production costs are low. It is a barrier to achieving.

Therefore, the present invention has been made in view of the above problems. By printing on the lens member, the light diffusing layer can be integrally formed with the lens member, and the management of parts can be facilitated. It is an object of the present invention to provide a lens member of a light emitting display device which enables mass production and low production cost.

[0005]

To achieve the above object, the lens member of the light emitting display device according to the present invention is a lens member made of a synthetic resin which covers the light emitting source and transmits the light of the light emitting source. The light diffusing layer is integrally formed by printing on the at least one of the front surface and the back surface of the lens member main body with a light transmissive substance provided by evenly dispersing a light diffusing substance. It consists of the configuration. As described above, since the light diffusion layer is integrally formed on the lens member body by printing, the number of parts is reduced, the parts management is facilitated, and moreover, mass production is possible and the production cost can be reduced. .

The light diffusing substance and the fluorescent agent may be evenly dispersed in the light transmitting substance. As a result, the light diffusing substance emits scattered light and the fluorescent agent emits fluorescence, so that the light emitted from the light source becomes light in which scattered light and fluorescence are combined, and the front surface of the lens member is more uniform. It emits light in a quantity of light, and the influence of the shade of the light source is almost eliminated, and the effect of lighting is not impaired.

As the printing method, other printing methods such as an in-mold printing method and a thermal transfer printing method are adopted. In addition,
INDUSTRIAL APPLICABILITY The light emitting display device according to the present invention can be widely applied to game machines such as ball game machines such as pachinko game machines and arrange ball machines and slot machines, and also to island stands where these game machines are arranged.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a lens member of a light emitting display device according to the present invention will be described in detail below with reference to the drawings. The present invention is applied to a light emitting display device mounted on the front side of a pachinko gaming machine. FIG. 1 is a front view of a pachinko gaming machine to which the present invention is applied, and FIG. 2 is a perspective view of the pachinko gaming machine with a glass door frame, a front plate and a lower front plate removed. In the figure, 1 is a pachinko machine P
It is a machine frame of a vertical rectangular frame, and the frame base body 2 is supported on the front side thereof by a shaft supporting portion 3 provided on one side upper and lower parts of the machine frame 1 so as to rotate. It is mounted so that it can move freely. A window opening 4 is opened in the upper center of the frame base 2, a game board 5 is arranged on the back surface thereof, and a game portion 5a on the front surface thereof faces the window opening 4.

The frame base 2 in the present invention means a support frame 2a, which will be described later, which is rotatably mounted on the front side of the machine frame 1 as in the present embodiment, and a game board 5 on the back side of the support frame 2a. The mounting frame part 41 described later for mounting the mounting frame is integrally formed, or the mounting frame part 41 is provided separately, and further, the mounting frame part 41 is directly mounted on the machine frame 1 without the supporting frame body 2a. It also includes a mounting frame portion 41. The frame base 2 may be rotatably mounted on the machine frame 1 or simply mounted. The frame base body 2 is preferably made of synthetic resin or metal. When the frame base body 2 is composed of the support frame body 2a and the mounting frame portion 41, it is desirable that they are integrally formed of the same material. This is preferable in terms of molding or disposal.

On the front surface of the frame base 2, a glass door frame 7 that covers the game portion 5a on the front surface of the game board 5 and has two glass plates 6 and a front plate 8 that covers the lower portion of the game board 5 Also, the upper and lower portions of one side thereof are pivotally supported by a plurality of shaft supporting portions 10 provided between the upper and lower sides of one side of the frame base 2 for a predetermined distance, and are rotatably mounted. On the front surface of the front plate 8, there is mounted a hitting ball supply tray 11 for supplying the stored pachinko balls to a hitting ball launching section A described later. Further, on the front surface of a lower front plate 9 which is pivotally supported on the lower portion of the frame base body 2 and covers the front surface thereof, a lower ball receiving tray 12 for storing pachinko balls overflowing from the hitting ball supply tray 11 is mounted. Reference numeral 13 denotes an operation handle which is provided on one side of the front surface of the lower front plate 9 and adjusts the strength of the striking force of the pachinko ball to be hit.

An inner guide rail 17 surrounding the game portion 5a is attached to the front surface of the game board 5, and an outer guide rail 18 is attached to the inner peripheral edge of the window opening 4 of the frame base 2. The inner and outer guide rails 17 and 18 are made of stainless steel metal strips and are spirally arranged on the front surface of the game board 5. A ball flying path 19 is formed between the inner guide rail 17 and the outer guide rail 18, and at the end position of the inner guide rail 17, the game section 5 is provided.
A sphere discharge port 20 continuous with a is formed.

A display device 21 having a display portion 21a at the substantially center thereof is attached to the game portion 5a, and the display of characters, numbers, figures, etc. on the display portion 21a is changed by a prize of a pachinko ball below the display device 21. A starting winning opening 22 for displaying is provided. Further, below that, the changed display is stopped after a certain time has passed and a specific display (for example, “77
7 "), and when a special game state that is advantageous to the player is reached, the prize-winning device 23 is provided that can open the opening / closing door 23a a predetermined number of times under a certain condition to obtain a large number of prize balls at a time. There is. The starting winning opening 22 has a pair of movable wing pieces 22a, 22a which can be freely converted into an upright position where a pachinko ball is hard to win or a tilted position where a pachinko ball is easy to win.

Further, general winning a prize openings 24 are provided at positions on both sides of the display device 21 and slightly below, and the general winning a prize openings 24 are provided.
When a pachinko ball passes above the position of the pachinko ball, it is detected and a pair of movable wing pieces 22a of the starting winning port 22 are detected.
A passing chucker 25 for tilting 22a so that a pachinko ball can be easily received is provided. Reference numeral 26 is a windmill that is rotatably mounted at an appropriate position of the game section 5a to change the flow of a pachinko ball that flows down to make the game interesting, and 27 is an obstacle nail. Furthermore, game section 5
In the lower part of "a", the game part 5a flows down, and the starting winning opening 2
2. Out ball opening 2 that collects the pachinko balls that did not win in the general winning opening 24, etc. to the rear of the game board 5 as out balls.
8 have been opened.

Next, the frame base 2 will be described with reference to FIGS. The frame base body 2 is integrally formed of a synthetic resin material and is a vertically long rectangular frame-shaped support frame body 2.
It is composed of a and a mounting frame portion 41 provided on the back surface thereof and fitted with the game board 5 fitted therein. And the support frame 2a
A frame portion 29 is provided on the peripheral edge of the cover plate portion 30 and
The window opening 4 is opened in the cover plate portion 30. A portion of the cover plate portion 30 corresponding to a portion to which the outer guide rail 18 is attached is separated, and an upper divided cover plate 30a and a side divided cover plate 30b are formed. Each of the divided cover plates 30a and 30b is replaceably attached to the inside of the frame portion 29 of the support frame body 2a.

A launch rail 32 and a launching device 33 for launching a pachinko ball supplied to a hitting ball launching portion A of the launch rail 32 are attached to a flat mounting surface 31 of the lower front surface of the cover plate portion 30. ing. The launch rail 32
Is provided with a rail main body 35 on the front surface of the mounting plate 34, and a holding member 36 for positioning a pachinko ball on the ball striking portion A of the rail main body 35. The launching device 33 has a front end of a mounting plate 37, a tip of which faces the hitting ball launching portion A of the launching rail 32, and a hitting hammer 38 for hitting a pachinko ball along the rail body 35 is rotatably mounted. Further, a shaft tube portion 39 through which the handle shaft 13a of the operation handle 13 is inserted is provided on the front surface of the mounting plate 37. On the other hand, on the back surface of the mounting plate 37, a drive motor 40 for reciprocally rotating the hitting mallet 38 is provided.

On the back surface of the support frame 2a, as shown in FIG. 4, a rectangular frame-shaped mounting frame portion 41 is formed so as to surround the window opening 4.
Are integrally provided, and the game board 5 is placed and fitted on the upper surface of the lower shelf portion 41a. In this state, the game section 5a faces the window opening 4. The game board 5 has a mounting frame portion 41.
It will be firmly fixed by a fixture (not shown) so that it will not fall off.

The upper division cover plate 30a is shown in FIGS.
As shown in FIG. 7, the inner side is surrounded by the frame portion 29 so as to cover almost the upper half portion, and the upper side and both side edges are formed in a shape along the upper side and both side edges of the frame portion 29, and the lower side is arcuate. It is recessed in. A bent side portion 42 that bends backward is provided on the upper side and both side sides, and a rail guide groove 43 is formed on the lower side. Then, through holes 44 of a predetermined size are formed on both left and right sides of the upper division cover plate 30a. In addition, at a predetermined position on the back surface of the upper cover plate 30a, the screw hole 4 is formed on the rear end surface.
A plurality of bosses 45 are provided to project 5a.

A light emitting display device 46 to which the present invention is applied is mounted in each of the through holes 44. This light emitting display device 46
Is a light emitting device 47 in which light emitting diodes 47a as a plurality of light emitting sources of red, green and blue are arranged on the front surface, and a lens member 48 which is transparent and covers each of the through holes 44, It consists of The lens member main body 48a is made of synthetic resin, for example, acrylic resin, polycarbonate resin, polyester, or PET resin, and is colored in an appropriate color and is transparently formed to transmit light. In each of the light emitting devices 47, a screw 16 is screwed into a screw hole 15 provided corresponding to each through hole 14 on the back surface of each lens member main body 48a through the through hole 14 provided at each corner portion. It can be installed by tightening.

On the other hand, the side division cover plate 30b has a substantially right-angled triangular shape which covers one side portion on the inner side surrounded by the frame portion 29 as shown in FIGS. A bent side portion 42 that bends backward is provided on one side and a lower side thereof, and the slant side is recessed in an arc shape, and the rail guide groove 43 is provided on the slant side similarly to the upper split cover plate 30a. To be In addition, a plurality of bosses 45 having screw holes 45a on the rear end face thereof are also provided in a protruding manner at predetermined positions on the rear surface of the side division cover plate 30b. A through hole 49 having a predetermined size is opened in the side division cover plate 30b, and a dot matrix type information display device 50 is arranged and fixed inside the through hole 49. Through hole 4
9, a transparent cover member 51 colored in a desired color is covered, and various characters and numbers (for example, "Welcome" and "big hit") displayed on the display surface 50a on the front surface of the information display device 50 from the front side. Etc.) are visible. In the information display device 50, a screw 54 is screwed into a screw hole 53 provided corresponding to each through hole 52 on the back surface of the cover member 51 through a plurality of through holes 52 provided on one side thereof. Installed.

A projecting piece 57 having a screw hole 56 is provided at a predetermined position on the inner peripheral side of the frame portion 29 so as to correspond to each screw hole 45a. Then, the upper division cover plate 30a and the side division cover plate 30b are respectively arranged at predetermined positions of the cover plate portion 30, and the screw holes 56 are aligned with the screw holes 45a. Next, by screwing the screw 58 from the back side of the support frame body 2a into each screw hole 45a through each screw hole 56, as shown in FIGS. 6 and 7, the upper split cover plate 30a and the side portion are separated. The split cover plate 30b is replaceably attached. The cover plate portion 30 is divided into two parts, an upper divided cover plate 30a and a side divided cover plate 30b.
The number is not limited to this, and may be divided into three or four.

The upper division cover plate 30a and the side division cover plate 3
By mounting 0b on the support frame 2a, the rail guide groove 43 formed on the inner peripheral surface of the window opening 4 has a rail width of about 3 of the rail width of the outer guide rail 18 along the longitudinal direction of the front side edge portion thereof. An arc-shaped support step portion 59 having a width of one-half and projecting from the surface of the rail guide groove 43 is formed. Also,
The upper division cover plate 30a and the side division cover plate 30b are not continuous and are separated from each other, and a predetermined width is provided between one lower end of the upper division cover plate 30a and an upper end of the side division cover plate 30b. The curvature adjustment space M of is formed. Similarly, the rail guide groove 4
3 and the support step portion 59 are also cut at a substantially intermediate position in the longitudinal direction. Further, projections 61, each having a screw hole 60, are provided on the back end of the cover plate portion 30 and the upper split cover plate 30a at the start end side and the end end side of the rail guide groove 43.

As shown in FIG. 4, the outer guide rail 18 has a starting end portion which is bent downward in a U shape outwardly, and a mounting piece 63 having a screw hole 62 at the tip end thereof is integrally provided, and a terminal end portion. A mounting piece 65 having a long hole 64 extending parallel to the longitudinal direction of the outer guide rail 18 is integrally provided therewith.

Then, the outer guide rail 18 is arranged along the rail guide groove 43, and the screw hole 62 of the mounting piece 63 on the starting end side is provided with the screw hole 60 of the projection 61 provided on the starting end side of the rail guide groove 43. Then, the screw 66 is screwed into the screw hole 60 through the screw hole 62. Next, the back edge side of the outer guide rail 18 is brought into contact with the support step portion 59, and the elongated hole 64 of the mounting piece 65 on the terminal end side is kept as it is and the screw hole 60 of the projection 61 provided on the terminal end side of the rail guide groove 43. Then, the screw 66 is screwed into the screw hole 60 through the long hole 64. As a result, as shown in FIG.
The outer guide rails 18 are attached to the arc-shaped inner peripheral surfaces of the 0a and the side division cover plates 30b. Then, the surface forms an arc surface that forms a predetermined trajectory. Also,
The outer guide rail 18 holds a pachinko ball that is returned once due to a weak flight force, etc. even if it is fired once, on the lower ball receiving tray 1
It is connected to the tip of the rail main body 35 through the return ball discharge port 67 for guiding to the rail 2.

Since the outer guide rail 18 can be fixed only at two points, that is, the starting end portion and the terminating end portion, it can be easily attached. Further, only the front edge side of the outer guide rail 18 is supported by abutting against the support step portion 59, and the unsupported portion is on the back surface thereof in the rail width direction over the whole between the start end portion and the end portion. A space is formed at least along the central portion. As a result, the required elasticity is imparted to the outer guide rail 18, and the flying pachinko ball absorbs the impact, especially when it jumps out of the launch rail 32 and lands on the surface of the outer guide rail 18. , The pachinko ball does not bounce unnecessarily during the flight, and the ball flying condition becomes extremely good.

In the present embodiment, the support step portion 59 is provided only on the front edge side of the rail guide groove 43, but it may be provided on both the front and rear edge sides, and the support step portion 59 in the rail width direction of the outer guide rail 18 may be provided. It is only necessary that a space be formed at least along the back surface of the central portion so that the impact of the flying pachinko ball can be absorbed.

A curvature adjusting space M is formed between the upper division cover plate 30a and the side division cover plates 30b. Normally, the upper division cover plate 30a and the side division cover plates 30b are formed. Of the inner peripheral surface, that is, the radius of curvature of the rail guide groove 43 is different. Therefore, when the outer guide rail 18 having a constant radius of curvature set at the stage of manufacture is attached to the rail guide groove 43, since the radius of curvature is different between the upper side and the lower side of the outer guide rail 18, distortion is generated. As a result, the surface is wavy, and as a result, the ball flying state becomes unstable. Therefore, it is intended to make the surface of the outer guide rail 18 a smooth surface and to secure a stable ball flying state by letting the distortion escape in the curvature adjusting space M that can be freely curved.

The above is a description of the configuration of the pachinko gaming machine P. Next, the lens member of the light emitting display device according to the present invention will be described. The light emitting display device 46 is the lens member 48, and the light diffusion layer 68 is formed on the back surface of the lens member main body 48a. The light diffusion layer 68 is formed by printing with a light transmissive substance provided so as to uniformly disperse a light diffusing substance that diffuses light as described later. Examples of this method include printing methods such as an in-mold printing method and a thermal transfer printing method.

Each of the printing methods will be described in more detail. First, a method of forming the light diffusion layer 68 by the in-mold printing method will be described. This method is a method in which printing is performed at the same time inside the die during molding of the lens member main body 48a. In this method, the light diffusion layer 68 is previously prepared.
A film F having a light-transmitting substance layer 69 to be formed thereon is formed in advance. As shown in FIG. 8A, the film F has a release agent layer 69a, a light-transmitting substance layer 69, and an adhesive layer 69 which are closer to the base film body F1 from one side surface thereof.
b is laminated and molded.

The release agent layer 69a is a transparent layer that functions to release the light-transmitting substance layer 69 and the adhesive layer 69b from the film body F1 after printing is completed, and is used for normal printing of this type. It consists of the material used for. Further, the light transmissive substance layer 69 uniformly disperses a light diffusing substance for diffusing light in a transparent resin such as a polycarbonate resin, an acrylic resin, a vinyl chloride resin, a phenol resin, an ABS resin, or polypropylene. The adhesive layer 69b is a layer for firmly adhering the light-transmitting substance layer 69 to the back surface of the lens member main body 48a, and has a high hardness such as acrylic resin, polycarbonate resin, polyoxyethylene, polyethylene, polypropylene and has a smooth surface. Good quality (slippery)
An adhesive (for example, a chlorinated polyolefin-based adhesive) that exhibits a strong adhesive force to a resin is used. A polyethylene terephthalate resin is often used as the film body F1. The adhesive layer 69b may be omitted by previously mixing the adhesive with the light transmissive substance layer 69.

Examples of the light diffusing substance include white powder of titanium oxide, talc, ore powder, acrylic resin powder, and calcium carbonate.

Therefore, the film F on which the light transmissive material layer 69 has been spread is placed in the mold K as shown in FIG. 8B. Normally, the film body F1 is placed in the mold K in the arrangement direction.
Is on the core K1 side and the light transmissive material layer 69 is on the cavity K2 side where the injection port S of the mold K is provided. Note that FIG.
(B) is an explanatory view for explaining the in-mold printing method in an easy-to-understand manner, and details such as ejector pins are omitted, and the die itself is not actually used.

The mold K is set as described above and the mold K is closed. In this state, the molten resin is injected to perform molding. After molding, the mold K is opened and the film body F1 is peeled off. At this time, the light-transmissive substance layer 69 remains on the molded synthetic resin side (product mold R side) due to the adhesive action of the adhesive layer 69b, and the light-transmissive substance layer 69 is printed on the back surface of the light-transmissive substance layer 69. As shown, the lens member 48 in which the light diffusion layer 68 is integrally molded is completed.

This in-mold printing method is a technique in which printing is simultaneously performed in the mold K during molding, and the outer circumference of the product mold R of the mold K is preliminarily set so that the film F is not displaced by the resin pressure during molding. Quick cut L to fix the film F to the part
1, L2 (small concave portions and small convex portions having a triangular cross section) need to be provided.

Next, a method of forming the light diffusion layer 68 by the thermal transfer printing method will be described. In this thermal transfer printing method, first, a film F on which the light transmissive substance layer 69 has been spread is formed in advance in substantially the same manner as that prepared in the in-mold printing method. That is, the film F is shown in FIG.
As shown in (a), a release agent layer 69a, a light-transmitting substance layer 69, and an adhesive layer 69b are laminated and formed on the film body F1 serving as a base in order from the one side surface thereof.

Then, the film F having the light transmitting material layer 69 spread thereon is arranged so that the light transmitting material layer 69 is on the back side of the lens member main body 48a as shown in FIG. On the main body F1 side, a hot stamp H having the same concave and convex shape as the concave and convex shape of the lens member main body 48a on its surface is arranged. This hot stamp H
Is heated to a temperature required to bond the light transmissive material layer 69 to the back surface of the lens member body 48a.

Next, as shown by the arrow in FIG. 9B, the hot stamp H is pressure-bonded to the back surface of the lens member main body 48a through the film F on which the light transmissive material layer 69 is printed,
The light transmissive material layer 69 is transferred to the back surface thereof. Adhesive layer 6
When 9b has sufficiently adhered to the back surface of the lens member main body 48a, the hot stamp H as shown by the arrow in FIG.
Is released, the light diffusion layer 68 is transferred to the back surface of the lens member main body 48a. Although the light diffusion layer 68 is formed on the back surface of the lens member main body 48a in these embodiments, it may be formed on the front surface or both surfaces.

In this way, the lens member 48 integrally formed with the light diffusion layer 68 on the back surface of the lens member main body 48a by the in-mold printing method or the thermal transfer printing method is completed. Then, when the light projected from the light emitting diode 47a, which is a light source, passes through the light diffusion layer 68, it is diffused by the evenly dispersed light diffusion material, and the light diffusion material emits scattered light. Therefore, when the light emitted from the light source passes through the lens member 48, it becomes scattered light emitted from the light diffusing substance, and the front surface emits a uniform amount of light.

In the present embodiment, the light diffusing substance is evenly dispersed in the light transmissive substance, that is, the light diffusing layer 68. However, a fluorescent agent that emits fluorescence may be further uniformly dispersed. . As the fluorescent agent, for example, a fluorescent pigment,
There is a fluorescent dye, which is appropriately selected depending on the material to be added. Fluorescent pigments include, for example, polypropylene (P
P), polyethylene (olefin resin) (PE), nylon (PA). On the other hand, fluorescent dyes
For example, non-additives are ABS, polycarbonate (PC),
Used in the case of styrene resin PS. A fluorescent brightening agent is used to act the fluorescent agent, and the fluorescent brightening agent is, for example, 2,5-bis [5-t-butylbenzoxazolyl (2)] thiophene.

A dispersant is used to evenly disperse the light diffusing substance and the fluorescent agent. This dispersant includes
There are amide waxes, stearic acid or animal and vegetable waxes. Stearic acid is a white waxy solid and is a main component of fatty acids in animal fat, cocoa butter, and sea fat. For example, the light transmissive substance is vinyl chloride resin, phenol resin, A
Used in the case of BS resin, polypropylene (PP). As animal and plant waxes, whale fat and beehive beeswax are used in polycarbonate, which is weak against chemicals.

By thus uniformly dispersing the light diffusing substance and the fluorescent agent in the light transmissive substance,
The light diffusing substance emits scattered light and the fluorescent agent emits fluorescence. When the light emitted from the light source passes through the lens member 48, the scattered light emitted by the light diffusing substance and the fluorescent agent are emitted. It becomes the light that is combined with the fluorescence. Therefore, the front surface emits light with a more uniform amount of light, the influence of the shadow of the light source is almost eliminated, and the effect of lighting is not impaired.

In the present embodiment, the cover plate portion 3
The light-emitting display device 46 attached to 0 has been described,
It is also applicable to the light emitting display device 46 mounted on other parts as long as it exerts the illumination effect.

[0042]

As described above, in the lens member of the light emitting display device according to the present invention, the light diffusing substance for diffusing light is evenly dispersed on at least one of the front surface and the back surface of the lens member. Since the light diffusing layer is integrally formed by printing with the provided light transmissive substance, the number of parts can be reduced, parts can be easily managed, and mass production is possible, as well as production cost. Can be cheap.

If the light diffusing substance and the fluorescent agent are evenly dispersed in the light transmissive substance, the light diffusing substance emits scattered light and the fluorescent agent emits fluorescence. The light becomes a light in which scattered light and fluorescence are combined, and the front surface of the lens member emits light with a more uniform light amount, and in particular, the influence of the shade of the light source is almost eliminated, and the lighting effect is not impaired.

If the light diffusion layer is formed by the in-mold printing method, the light diffusion layer is formed at the same time when the lens member is formed, so that the manufacturing process can be simplified.

[Brief description of drawings]

FIG. 1 is a front view of a pachinko gaming machine to which the present invention is applied.

FIG. 2 is a perspective view of the pachinko gaming machine with the glass door frame, front plate and lower front plate removed.

FIG. 3 is a front surface perspective view of a frame base in a state in which a launch rail and an upper / side divided cover plate are disassembled.

FIG. 4 is a rear perspective view of the frame base in which the outer guide rail is disassembled.

FIG. 5 is an exploded rear perspective view of the upper and side split cover plates.

FIG. 6 is a front view of a frame base body.

7 is a sectional view taken along line XX in FIG.

FIG. 8A is a structural explanatory view of a film in the in-mold printing method. (B) Explanatory drawing which shows the method of printing the back surface of a lens member by the in-mold printing method.

FIG. 9A is a structural explanatory view of a film in the thermal transfer printing method. (B) An explanatory view showing a method of printing the back surface of the lens member by a thermal transfer printing method. (C) An explanatory view showing a method of printing the back surface of the lens member by a thermal transfer printing method.

[Explanation of symbols]

46 light emitting display device 47 Light emitting device 47a Light emitting source (light emitting diode) 48 lens member 48a lens member main body 18 Outer guide rail 68 Light diffusion layer 69 Light-transmissive material layer 69a Release agent layer 69b adhesive layer F Light-transmissive film F1 film body

Claims (3)

[Claims] 1. A lens member made of a synthetic resin, which covers a light emitting source and transmits the light of the light emitting source, wherein the light diffusing substance diffuses light on at least one of the front surface and the back surface of the lens member main body. A lens member for a light emitting display device, wherein a light diffusion layer is integrally formed by printing with a light transmitting substance provided by uniformly dispersing. 2. The lens member of the light emitting display device according to claim 1, wherein a fluorescent agent that emits fluorescence is evenly dispersed and provided in the light transmissive substance. 3. The light diffusion layer is integrally molded by printing by an in-mold printing method.
A lens member of the described light emitting display device.