JP2002355374A - Electric decorating device for game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a game machine which has a simple constitution, and in addition, the electric decoration effect of which is high, in the electric decorating device for the game machine. SOLUTION: This electric decorating device for the game machine comprises a light-guiding rod (light-guiding body) R1 having an excellent light permeability, and a light-emitting body B which is arranged on the end surface 2 of the light-guiding rod R1 . In this case, the light-guiding rod R1 is constituted in such a manner that, on the external surface of the light-guiding rod R1 , a large number of cut grooves 1 which gradually become deeper as separating from the end surface 2 are provided in the longitudinal direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device for a game machine, which enhances the lighting effect by utilizing the refraction of light.

[0002]

2. Description of the Related Art Most of conventional illuminating devices in game machines rely on lighting or blinking of light emitters. Regarding the latter blinking, a time difference is provided between the blinking of a large number of light emitters. Some devices have been devised to enhance the illuminating effect, but the illuminating state itself has no peculiarity and its change is scarce, so that the illuminating effect does not increase much. Also, if the voltage or current applied to the luminous body is changed,
Although the illuminance can be changed, the change in the illuminance alone cannot be expected to improve the illumination effect, and a special electric circuit is required to change the voltage and the like.

[0003] On the other hand, there is a device that enhances the illumination effect by reflecting light from the luminous body toward the player side by a reflection plate. However, the mere reflection of light has a poor illumination effect. In the case of, the reflector is rotated or linearly moved back and forth to enhance the illumination effect, and in fact, the movement of the reflector is indispensable. There is a problem that the area also increases.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a game machine with a simple structure and a high lighting effect in a game machine illumination device.

[0005]

According to a first aspect of the present invention, there is provided a rod-shaped light guide having excellent light transmittance, and a light-emitting body disposed on an end face of the light guide. An illumination device for a gaming machine, comprising: a plurality of cut grooves that are gradually deeper as the distance from the end surface is increased, on an outer surface of the light guide. .

According to the first aspect of the present invention, of the light emitted from the light emitter, the light incident on one end face of the light guide is directed toward the other end face inside the light guide. The light that travels straight and reaches the cut groove on the way is refracted at this portion, so that the cut groove portion is recognized as if it were emitting light. Since the outer surface of the light guide is provided with a number of cut grooves that gradually become deeper as the distance from the end face increases, light reaches all the cut grooves and emits light. For this reason, the number of illuminants
Even if it is one or two, since a large number of light emitting portions having higher illuminance than other portions are scattered in the cut groove portion on the outer surface of the light guide, the electric decoration effect is significantly enhanced. .

According to a second aspect of the present invention, in the first aspect, the light guide has a uniform thickness over its entire length.

According to the second aspect of the present invention, when the thickness of the light guide is uniform over the entire length, the light guide is provided along the longitudinal direction of the outer peripheral surface so as to gradually become deeper as the distance from the end surface increases. Light can easily reach all portions of the large number of cut grooves.

[0009] The invention of claim 3 is based on claim 1 or 2.
In the invention described in the above, the light-emitting members are respectively arranged on both end surfaces of the light guide, and a large number of cut grooves provided on the outer surface of the light guide are directed from both end surfaces of the light guide toward the center. It is characterized by gradually deepening.

According to the third aspect of the present invention, if all the cut grooves are illuminated by light from one illuminant disposed only on one end face of the light guide, the light is attenuated by Although the illuminance of the portion of the light guide body away from the end face on the incident side decreases, according to the present invention, this problem can be prevented and the difference in the illuminance of each cut groove can be reduced. The decoration effect can be enhanced.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the light guide is capable of emitting light of a plurality of colors.
In the invention according to any one of claims 1 to 4, a filter member having a plurality of colors is movably arranged between the light guide and the light emitter by a driving unit. It is characterized by.

According to the fourth aspect of the present invention, since the light emission color of each cut groove portion of the light guide changes, the electric decoration effect can be enhanced. Is a monochromatic emission, the color of the light passing through the filter member is changed by the movement of the filter member, and the same effect as in claim 4 can be obtained.

According to a sixth aspect of the present invention, in the first aspect of the present invention, a reflector is disposed on the back side of the light guide. The invention according to the sixth aspect is characterized in that, in the invention according to the sixth aspect, the reflection plate is configured by one of a curved surface and a multi-surface.

According to the sixth aspect of the invention, the refracted light which is refracted at each cut groove portion of the light guide and goes out, or is reflected inside once without being refracted at the cut groove portion. After that, refraction from the side part other than the cut groove,
The refracted light that has exited is reflected by a reflector disposed on the back surface of the light guide, and is emitted toward the player. Thereby, the light emission by the refracted light in each cut groove portion of the light guide and the reflected light by the reflection plate are synergistic, and the illumination effect is enhanced. Further, according to the invention of claim 7, since the reflection angles at the respective portions of the reflection plate are different from each other, it is possible to irradiate substantially the entire back surface of the light guide that emits light by the reflected light, The decoration effect can be enhanced.

The invention of claim 8 is the invention of claim 6 or 7.
In the invention described in (1), one of the light guide and the reflection plate is configured to move within a predetermined range.

According to the eighth aspect of the invention, when the light guide moves, the entirety of the cut groove is moved while the cut grooves emit light, and the angle of the light incident on the back reflector is also changed. Due to the change, the reflection state also changes, and a complicated electric decoration becomes possible. On the other hand, when the reflecting plate moves, the angle of light incident on the reflecting plate changes, so that the reflection state changes, and as described above, complex illumination can be performed.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to embodiments. Figure 1 is a front view of a pachinko machine P having the illumination device A ₁ according to the present invention. A front frame 61 of the pachinko machine P is attached to a base frame (not shown) so as to be openable and closable by hinge connection, and a glass frame 62 is attached to the front frame 61.
Is fitted. Also, the game board 63 has a rail 6
A portion of the game board 63 surrounded by the rail 64 is a game area 65.

At the center of the game area 65, a symbol display device 66 of a liquid crystal display is arranged. Immediately below the symbol display device 66, a start winning hole 67 for starting the operation of the symbol display device 66 is arranged. Further, immediately below the starting winning opening 67, an attacker device 68 that is activated when a plurality of symbols of the symbol display device 66 form a specific combination and becomes a "big hit" is disposed. Further, on both sides of the lower end portion of the symbol display device 66 and diagonally above the upper end corner thereof, a general winning opening 69 is disposed, respectively, and is disposed at the lower end portion of the symbol display device 66 and the side thereof. A windmill 71 is arranged between the general winning opening 69 and the windmill 71. In FIG. 1, reference numerals 72 and 73 denote upper and lower ball trays, and a firing handle 74 is provided beside the lower ball tray 73.

Further, on both sides of the symbol display device 66, illumination device A ₁ of the first embodiment are respectively arranged along the vertical direction. The illumination device A ₁ is obtained by utilizing the refraction of light.

Next, with reference to FIGS. 5 to describe the illumination device A _1. Figure 2 (b) is a right side view of the illumination device A _1, the (B) is a same front view, FIG. 3, bar-shaped light pipe constituting the illumination device A ₁ R is a perspective view of _one of the upper portion, FIG. 4 is a diagram showing the principal refraction of light in the portion of the cut grooves 1 of light guide bar R _1, FIG. 5, the light emission state of the light guide bar R ₁ FIG. The illuminating device A ₁ has a light guide rod R ₁ having a large number of cut grooves 1 formed on an outer peripheral surface (side surface) along a longitudinal direction, and both end faces of the light guide rod R ₁ vertically arranged. And a light-emitting body B arranged in the manner described above.

The light guide rod R ₁ is made of an acrylic resin having excellent light transmittance, has a constant thickness over its entire length, and has an elongated columnar shape having the same cross-sectional shape (circular cross-section). And a large number of cut grooves 1 on its outer peripheral surface (side surface).
Are provided at a constant pitch Q. Cross section of the large number of cut grooves 1 is one that even if the V-shape, the end surfaces 2 of the light guide bar R _1, towards the center thereof C, and becomes gradually deeper the depth D I have. In other words, the cross-section of a number of cut grooves 1, they become similar shapes, from both end faces 2 of the light guide bar R _1, toward its central portion C, and gradually become similar large. The light guide rod R ₁ is vertically arranged on both sides of the symbol display device 66 such that the cut groove 1 faces the front, and immediately above and below the light guide rod R ₁ ,
The luminous bodies B are respectively arranged facing the end surfaces 2 thereof. The angle θ (see FIG. 2) formed by each groove surface 3 forming the cut groove 1 is such that the light transmitted through the light guide rod R ₁ is not totally reflected at the cut groove 1 portion. , A part of which is determined to be refracted into the air.

Next, with reference to FIG. 4, illustrates a light-emitting principle of the light guide bar R _1. Figure 4 is a schematic longitudinal sectional view showing the path of the incident light beam L from the upper end face 2 into the light guide rod R _1. From one end face 2 of the light guide bar R _1, light incident perpendicularly to the hand, in the interior of the light guide bar R _1, and goes straight, with the other end face 2 exits into the air, Ray L passing through the cut groove 1
Is refracted by the groove surface 3 and goes out into the air. That is, as shown in FIG. 4, the light ray L refracted by one groove surface 3 constituting the cut groove 1 and emitted into the air is reflected by the other groove surface 3 and can be recognized by the player. Go in the right direction.

Here, a large number of cut grooves 1 are formed by light guide rods R.₁
The depth D gradually increases from the side of the end face toward the center C.
Because it is formed to be deep, adjacent cuts
A predetermined difference e occurs between the grooves 1 with respect to its depth D.
ing. Therefore, the light guide rod R ₁Perpendicular to each end face 2
The light beam L that has entered the interior is
And a refraction phenomenon of light occurs on the groove surface 3.
That is, the light guide rod R₁Two cut grooves closest to both end faces 2
With respect to 1, the above-described light
Occurs in the other cut groove 1
Is the depth between the adjacent another cut groove 1 on the groove surface 3.
Only at the portion (groove bottom) corresponding to the difference e of the height D
The described light refraction phenomenon occurs. This ensures that all brackets are
In the portion of the groove 1, the light guide rod R₁Light L passing through
The light refraction phenomenon occurs, and all the cut grooves 1
However, the illuminance is higher than other parts, almost uniform
And emits light intermittently. In addition, in FIG. 4, L '
The light guide rod R is not refracted by the groove surface 3 of the cut groove 1₁Within
And then, by refraction, the parts other than the cut groove 1
Indicates a light ray that has exited from the minute (in the air).

On the other hand, as shown in FIG. 6, light guide bar R ₁
When the depth D of a large number of cut grooves 1 ′ provided at a predetermined pitch along the longitudinal direction on the outer peripheral surface (side surface) of each of them is all constant, the cut groove 1 ′ on the side closest to the end surface 2.
, The light beam L reaches the groove surface 3 ', and the above-described light refraction phenomenon occurs. However, the light beam L hardly reaches the remaining cut groove 1'. Therefore, if the depth D of the large number of cut grooves 1 'is kept constant, the two
Except for one cut groove 1 ′, almost no light is emitted in the remaining cut groove 1 ′. Therefore, when the depth of the many cut grooves 1 'provided on the outer peripheral surface (side surface) of the light guide rod R' is constant, a high illumination effect cannot be expected.

[0025] Then, the front shape of each cutting groove 1 provided in the light guide bar R _1, as shown in FIG. 2 (b), an elliptical shape, the size thereof, the central portion from both end faces It is gradually getting bigger. Therefore, as shown in FIG. 5, the light emitting portions 4 of the two cut grooves 1 at both ends of the many cut grooves 1 emit light in an elliptical shape close to the front shape thereof, and the remaining cut grooves 1 have the same shape. Regarding the light emitting unit 4,
Since the bottom of the groove only emits light partially, its width is almost constant, but its length is a horizontally long rectangular shape that gradually increases from both ends toward the center. Becomes Thus, looking at the overall light emission state of the light pipe R ₁ from the front of the player, with the plurality of light emitting portions 4 are aligned in the vertical direction, interspersed. For this reason, the illumination effect is greatly enhanced. Incidentally, as shown in FIG. 7, the case in which the V-shaped cut groove 1 on the side surface of the quadrangular prism light guide rod R _2, the emission shape is a likewise rectangular, its length The same is true for all the cut grooves 1.

For this reason, although the actual light emitting source is only the two light emitting bodies B provided on the upper and lower end surfaces 2 of the light guide rod R ₁ , light is emitted in all the cut grooves 1. Will be recognized by the player. Also, the light guide rod R ₁
Since the number of the cut grooves 1 provided in each of the light-emitting bodies B is gradually increased in the depth D from both ends toward the central portion, and light is emitted from the two light-emitting bodies B disposed opposite to both end faces 2 of the cut grooves 1. ,
Due to the attenuation of the light, it is possible to prevent the illuminance of the portion of the cut groove 1 far away from the light emitting body B as the light source from being reduced,
It is possible to reduce the difference in illuminance between a large number of light emitting units 4 which emit light in a dotted line in a state of being linearly arranged. Light guide rod R
₁ has a uniform thickness over its entire length, so that the shape of each cut groove 1 is similar, and the shape of the light emitting portion 4 changes correspondingly with a certain regularity (as described above). In addition, the width is constant, but the length is a horizontally long rectangular shape that gradually increases from both ends toward the center, so that beautiful and effective illumination can be achieved. In FIG. 2, 5 denotes a cover member that covers the front of the upper and lower ends of the light guide bar R _1.

In the illumination device A ₁ , LEDs capable of emitting light of a plurality of colors may be used as the light-emitting members B opposed to both end surfaces 2 of the light guide rod R ₁ .
Then, at the same time, when made different emission colors of the two emitters B, and both end faces 2 of the light guide bar R _1, with different colors of light respectively are emitted, both end portions of the light guide bar R ₁ is In addition, light is emitted in a color close to the emission color of each light emitting body B, and as the color approaches the center from both ends, the two colors become a combined color, and the color gradually changes, and the light guide rod R _With respect to the whole of ₁ , a unique light emitting state in which the emission color gradually changes over the entire length is realized. Thus, in addition to the dotted light emission, the light emission color of each light emitting unit 4 gradually changes over the entire length, so that the electric decoration effect is enhanced.

Next, an electric decoration device A2 according to a _second embodiment will be described with reference to FIGS. Figure 8 is a right side view of the upper end portion of the illumination device A _2, FIG. 9 is a plan view of the filter disc 11. The illumination device A ₂ is a light emitter B, and uses an LED single luminescent color, between the end faces 2 of the light guide bar R ₁ and each light emitter B, each with a plurality of colors the filter disc 11 is a configuration arranged so as to be rotatable by a driving device K _1. The filter disk 11 has a configuration in which three different color transmissive color filter portions 12a to 12c that are adhered by a predetermined method are provided along the circumferential direction.

Each of the colored filter sections 12a to 12c
One either, in order to be placed between the light emitting unit B and the end face 2 of the light guide bar R _1, the rotational axis 13 of the filter disc 11 is offset from the center of light guide bar R ₁ is horizontally disposed, the rotary shaft 13, hanging is connected to the rotary shaft 14 of the motor M ₁ disposed vertically through the coupling 15, the filter disc 11, the rotary shaft 14 of the motor M ₁ It is configured to be supported in a state. In FIG 7, although not shown, the end face of the lower light guide bar R ₁ 2
And the luminous body B disposed opposite thereto,
Wherein and filter disc 11 is arranged, the filter disc 11, the rotary shaft 14 of the motor M _1, the load is supported by a form that acts directly.

[0030] Then, the motor M _1, the filter disc 11 may also be continuously rotated slowly, to sequentially reach a position where the colored filter unit 12a~12c faces the light emitter B, were intermittently rotated You may. Thus, the emission color from the light emitter B be a single, are periodically changes the emission color of the light-emitting portion 4 of the light guide bar R _1.
Further, when made different colors selected from the colored filter unit 12a~12c of each filter disc 11 arranged at both ends of the light guide bar R _1, capable of emitting light in a plurality of colors and the L
As in the case of using the ED as emitters, two different colors is synthesized stepwise, it is also possible to stepwise change the emission color of each light emitting portion 4 of the light guide bar R _1.

Next, referring to FIG. 10 and FIG.
For illumination device A ₃ embodiment will be described. FIG.
It is a right side view of the illumination device A _3, FIG. 11 (a) to
(C) is a diagram showing the emission state of each cutting groove 1 of light guide bar R ₁ constituting the illumination device A _3. This illumination device A
_3, in the illumination device A _1, a configuration for forward and reverse rotation of the light guide rod R ₁ by a driving device K _2. Light guide rod R
The upper and lower ends of each ₁ are rotatably supported by bearings 21, respectively, and a gear 22 is integrally attached to the upper end thereof. The motor M ₂ has a drive shaft 23 disposed at a position substantially at the same height as the upper light-emitting body B with its drive shaft facing downward, and a gear 24 attached to the drive shaft 23 via a coupling 25. And the gear 22 mesh with each other. Therefore, by normal and reverse rotation of the motor M _2, light guide bar R ₁ is similarly rotate forward and backward.

[0032] Therefore, in the neutral position of the light guide bar R _1, the light-emitting portion 4 of the cutting grooves 1 is recognized in a shape as shown in FIG. 11 (b), forward and reverse of the light guide rod R ₁ As a result of the rotation, the light-emitting portions 4 are recognized at both ends thereof as shown in FIGS. 11A and 11C, and the shape of the light-emitting portions 4 is recognized differently. Thereby, since the many light emitting parts 4 are recognized as being changed in shape in addition to being scattered light scattered on a straight line, the illumination effect is further enhanced. Incidentally, light guide bar R ₁ and a pair of to constitute the light emitter B together of the unit shape, even if the unit is configured to move back and forth or vertical movement, as compared with the case of the stationary state, the electric decoration The effect is enhanced.

Further, in FIGS. 12 and 13 illumination device A ₄ of the fourth embodiment of the present invention is shown. FIG.
Is a front view of the illumination device A _4, FIG. 13 is a sectional view taken along line X-X in FIG. 12. That is, the back side of the light guide bar R _1, reflector 31 of the cross-section semicircular is, so as to cover the whole of the light guide rod R _1, toward the reflective surface 32 of the inner peripheral surface of the front side The light guide bar R ₁ is disposed so as to enter the reflection surface 32 side more than the center position of the cross section of the reflection plate 31 with reference to the reflection plate 31.

Then, as described in the light emitting principle of the light guide rod R ₁ , the light enters the end face 2 of the light guide rod R ₁ from the light emitter B and enters the inside of the light guide rod R _1. Some of the light is reflected by the cut groove 1 and then refracted light (light indicated by L ′ in FIG. 4) refracted to the outside from a portion other than the cut groove 1. the refracted light is reflected by the reflecting surface 32 of the reflector 31 disposed behind the light guide bar R _1. Then, from the light guide bar R _1, and out refracted light in all directions, the refracted light is reflected by the reflecting plate 31 is irradiated toward the side of the player of the front.
Accordingly, the light emission by refracting light portion of the cut grooves 1 of light guide bar R _1, the synergistically and reflected light by the reflection plate 31, the illuminations effect as a whole is enhanced.

Further, in FIGS. 14 and 15, and illumination device A ₅ of the fifth embodiment of the present invention is shown. FIG.
Is a right side view of the illumination device A _5, FIG. 15 is a partially enlarged perspective view of the light guide bar R ₃ constituting the illumination device A _5. The illumination device A ₅ are, on the outer peripheral surface thereof, the ends toward the center portion, a light guide rod R ₃ where helical grooves 41 become gradually deeper formed in depth, the light guide rod R ₃ a driving device K ₂ for continuously rotating the both end faces 2 of the light guide rod R ₃
And a pair of luminous bodies B arranged opposite to each other. Configuration of the driving device K _2, since the third is the same as that of the illumination device A ₃ embodiment, the same portions are denoted by the same reference numerals, performed only shown. In the above illumination device A _3, the motor M ₂ of the driving device K _2, which had by forward and reverse rotation, in the illuminations device A _5, in order to continuously rotate the light guide bar R _3, motor M ₂ is in the same direction and is continuously rotated, only the use of the driving device K ₂ is slightly different, the configuration is the same.

Then, the light guide rod R is driven by the driving device K ₂ .
₃ is rotated forward and reverse, the spiral groove 41 formed on the outer peripheral surface thereof gradually becomes deeper from both ends toward the center, so that the depth of the above-described many cut grooves 1 is reduced. due to the two ends of the light rod R ₁ becomes gradually deeper toward the center portion, by the same principle as all cuts grooves 1 emits light, the light emitters at both ends of the light guide bar R ₃ The light from B reaches all the spiral grooves 41 and emits light (all the spiral grooves 41 continuously emit light). And
Since the light guide rod R ₃ is continuously rotated in the same direction by the driving device K ₂ , when viewed from the player's side in front of the light guide rod R ₃ , the light emitting portion of the spiral groove 41 is vertically oriented. Recognized by moving sequentially. As a result, the light guide rod R ₃ emits light in a unique shape (a shape that forms a part of a spiral) due to the spiral groove 41 formed on the outer peripheral surface thereof, so that the illumination effect is greatly enhanced. .

In each of the above embodiments, the light guide rod R
₁Cut groove 1 or light guide rod R formed on the outer peripheral surface of_Three
The spiral groove 41 formed on the outer peripheral surface of
From the end to the center, the depth is deeper and the light guide rod
R₁, R_ThreeAt both ends, one pair facing each end face
Are arranged, and the light guide rod R₁, R _Three
Light is radiated from both ends of the
Therefore, it is possible to obtain almost uniform illuminance over the entire light emitting portion.
There is a point. However, in the present invention, the light guide rod is formed.
The depth of a number of cut grooves or spiral grooves
To the other end, gradually
A configuration in which only one light emitter is provided opposite
Noh.

Further, the shape of a large number of cut grooves provided in the light guide rod is not limited to the case of the V-shaped cross section as in each of the above embodiments, but the width gradually increases toward the opening. The cross section may be irregular U-shaped.

The light guide rod may be made of any material as long as it has a light transmitting property. In addition to the acrylic resin, polycarbonate resin, glass and the like may be used. Regarding a method of forming a large number of cut grooves, there is a method by cutting, a method of simultaneously forming the cut grooves at the time of forming the light guide bar, and the like.

Further, when an electric decoration device provided with the light guide according to the present invention is used in combination with a reflection plate, as in the electric decoration device A ₃ of the third embodiment, the reflection plate is moved. A configuration may be used to enhance the illumination effect.

Further, each of the above embodiments is an example in which the light guide bar is vertically arranged and used, but it is also possible to use the light guide bar horizontally or obliquely depending on the device part of the gaming machine. It is. Further, the game machine that can be implemented is not limited to the pachinko machine as in the above-described embodiment, but can be implemented for other game machines such as a slot machine.

[0042]

As described above, in the illumination device for a gaming machine according to the present invention, even if the number of illuminants is one or two, the illuminance of each cut groove portion of the light guide is higher than that of the other portions. Is high, a large number of light-emitting portions that emit light intermittently occur, and the components are only a light guide and one or two light-emitting members (that is, the principle of refraction of light). By skillfully utilizing, with a very simple configuration), when implemented in a gaming machine, the illumination effect is greatly enhanced.

[Brief description of the drawings]

It is a front view of a pachinko machine P having the illumination device A ₁ according to the invention, FIG

Figure 2 (a), (b), respectively a right side view of the illumination device A _1, and a front view.

3 is a perspective view of the upper end portion of the illumination device bar-shaped light pipe R ₁ constituting the A _1.

4 is a schematic longitudinal sectional view showing mainly the refraction of light in the portion of the cut grooves 1 of light guide bar R _1.

5 is a diagram showing a light emission state of the light guide bar R _1.

FIG. 6 is a right side view of a light guide rod R ′ provided with a number of cut grooves 1 ′ having a constant depth.

7 is a partial perspective view of the light guide bar R _2.

8 is a right side view of the upper end portion of the illumination device A _2.

FIG. 9 is a plan view of the filter disk 11;

10 is a right side view of the illumination device A _3.

11 (a) to (c) is a diagram showing the emission state of each of the cut grooves 1 of light guide bar R ₁ constituting the illumination device A _3.

12 is a front view of the illumination device A _4.

FIG. 13 is a sectional view taken along line XX of FIG. 12;

14 is a right side view of the illumination device A _5.

15 is a partial enlarged perspective view of the light guide bar R ₃ constituting the illumination device A _5.

[Explanation of symbols]

A ₁ to A _5: illumination device B: illuminant C: the central portion of the light guide bar D: depth K ₁ of the cut groove, K _2: drive R ₁ to R _3: light guide bar (light guide) 1: cut groove 2: end face of light guide rod 4: light emitting portion of light guide rod 11: filter disk (filter member) 31: reflector 41: spiral groove (cut groove)

Claims (8)

[Claims] 1. An electric decoration device for a game machine, comprising: a rod-shaped light guide having excellent light transmittance; and a luminous body disposed on an end face of the light guide, wherein an outer surface of the light guide is provided. A plurality of cut grooves which gradually become deeper as the distance from the end surface thereof is increased, along the longitudinal direction. 2. The illumination device for a gaming machine according to claim 1, wherein said light guide has a uniform thickness over its entire length. 3. A light-emitting body is disposed on each of both end faces of the light guide, and a plurality of cut grooves provided on an outer side face of the light guide are provided from both end faces of the light guide toward a center. The illumination device for a gaming machine according to claim 1 or 2, wherein the illumination device is gradually deepened. 4. The illumination device for a gaming machine according to claim 1, wherein said light guide is capable of emitting light in a plurality of colors. 5. The apparatus according to claim 1, wherein a filter member having a plurality of colors is disposed between the light guide and the light emitter so as to be movable by a driving unit. An illumination device for a gaming machine according to the above. 6. The illumination device for a gaming machine according to claim 1, wherein a reflection plate is disposed on a back side of the light guide. 7. The illuminating device for a gaming machine according to claim 6, wherein the reflection plate is constituted by one of a curved surface and a multi-surface. 8. The apparatus according to claim 6, wherein one of the light guide and the reflecting plate is configured to move within a predetermined range.