JP2003308705A - Columnar luminescent device and playing machine provided with it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate work for printing a light reflecting paint on the circumferential surface of a columnar light guide body, to correct and facilitate settling work of the emitting direction of reflected light from a light reflecting layer and thereby to reduce a defective rate to enhance productivity, in a columnar luminescent device having the columnar light guide body provided with the band-like light reflecting layer on its circumferential surface. <P>SOLUTION: This columnar luminescent device 1 is provided with: the transparent columnar light guide body 2; light sources 3 and 33 disposed at a longitudinal end of the columnar light guide body for entering the light into the columnar light guide body; and the light reflecting layer 4 formed on the circumferential surface of the columnar light guide body. The light reflecting layer is formed on a flat surface 10 formed along the longitudinal direction on the circumferential surface of the columnar light guide body. <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 columnar light emitting device and a gaming machine provided with the same. For example, it is arranged on a board surface of a gaming machine such as a pachinko gaming machine or an arrange ball, and emits light over an arbitrary elongated range. The present invention relates to a long columnar light-emitting device with an improved lighting effect and a gaming machine including the same.

[0002]

2. Description of the Related Art Conventionally, a linear light emitting device using a transparent and long linear light guide as a light guide medium (light transmission tube) has been known and used for illumination. As a linear light emitting device of this type, FIG. 5A is disclosed in JP-A-2000-222907 and 2000-222908.
As shown in (b), in order to transmit the light emitted from the light source provided at each end along the inside of the light guide body 102 to emit high-luminance light, the side surface of the light guide body 102 is extended in the longitudinal direction. At least one strip-shaped light reflecting layer 103 is formed by printing,
A linear luminous body 101 is disclosed which is capable of lateral light emission having a strong directivity even with a small electric power. However, what is described in this publication is a light guide body 102 having a circular arc-shaped columnar surface, specifically, a columnar light guide body 102, and the curved peripheral surface of such a columnar light guide body 102. It is difficult to print the light-reflecting paint that forms the light-reflecting layer 103 on the surface, which causes a decrease in productivity. In particular, the smaller the diameter of the cylindrical light guide, the smaller the radius of curvature of the peripheral surface, which makes printing difficult. For example, the radius of curvature is 1-10 m
It is extremely difficult to print a light-reflecting paint on a curved surface of about m. By the way, in gaming machines such as pachinko machines and arrange balls, conventionally, not only simple lighting but also a large number of filament type lamps along the peripheral edge of the board surface for the purpose of achieving an effect of electric lighting in the game progress. Light emitting devices such as LED lamps are linearly arranged. However, when illuminating the surface of the board with such an aggregate of point light sources, it is necessary to connect and arrange a large number of lamps on the printed circuit board, which increases the number of manufacturing steps and the number of parts, There is a risk of increasing costs due to increased power consumption. Moreover, even if the point light sources are closely arranged on the printed circuit board, since the light emission form of each light source is circular, it is impossible to express linear light with a constant width and a constant width. Only linear light with intensity could be obtained. For this reason, it has not been possible to meet various needs for lighting.

In Japanese Unexamined Patent Application Publication No. 2001-058030, a strip-shaped reflecting plate composed of a plurality of small reflecting surfaces arranged in a jagged shape (uneven shape) on the surface is irradiated with light from a small number of light sources to reflect the light. Therefore, a technique for forming a strip-shaped light emitting region has been proposed. However, there is a limit in efficiently reflecting all the light emitted from the light source to a desired range, and a large amount of light is lost. Therefore, strong electric power is required to obtain a reflected light with a uniform light quantity.
Therefore, the above-mentioned Japanese Patent Laid-Open No. 2000-222907 and Japanese Patent Laid-Open No. 2-2907
000-222908, the columnar light guide described in
It is also conceivable to use the linear light emitting device arranged on the board surface of the game machine. However, as described above, it is not easy to perform printing on the circumferential surface, in particular, the circumferential surface having a small radius of curvature, in a band shape along the axial direction with a uniform thickness and a uniform width, and variations are likely to occur. For example, even if offset printing, gravure printing, letterpress printing, pad printing, screen printing, inkjet printing, etc. are used, it is difficult to print without variations and failures, which causes variations in the amount of side light emission and lower productivity. It is a cause of bringing. In addition, in the case of using the cylindrical light guide 102 as a light source for a scanner or the like, the light reflected by the light reflection layer 103 is emitted not only when it is arranged on the board surface of a game machine. There is a problem in that the work of accurately adjusting the direction of the exit surface is complicated. That is, when the light guide body 102 has a cylindrical shape, since there is no reference shape as a positioning mark, it is difficult to perform the positioning work for directing the emission surface, and while visually confirming the position of the light reflection layer 103. The manual fine adjustment work (work of rotating the cylindrical light guide) is required, which is extremely complicated. For this reason, the defective product occurrence rate due to the positioning failure may increase, which may lead to an increase in cost due to a decrease in productivity.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and has a long transparent columnar light guide, and a strip-shaped light guide arranged on the side surface of the columnar light guide along the length direction. The light reflection layer and a light source arranged at the end of the light guide, and the light emitted from the light source and transmitted in the light guide is reflected by the light reflection layer, and the side surface opposite to the light reflection layer. In a columnar light-emitting device capable of emitting a highly directional band-shaped light having high directivity from, while facilitating the work of printing a light-reflecting paint to form a light-reflecting layer on the peripheral surface of the columnar light guide, (EN) Provided are a columnar light-emitting device and a gaming machine including the columnar light-emitting device, in which the work of determining the emission direction of the reflected light from the light-reflecting layer is made accurate and easy to reduce the defective product generation rate and productivity is improved. It is an issue.

[0005]

In order to solve the above-mentioned problems, the invention of claim 1 is directed to a transparent columnar light guide body, and the columnar light guide body is provided at the longitudinal end portion of the columnar light guide body. In a columnar light-emitting device comprising a light source for making light incident on the columnar light guide, and a light reflection layer formed on a peripheral surface of the columnar light guide, the light reflection layer is provided on a peripheral surface of the columnar light guide in a longitudinal direction. It is characterized in that it is formed on a flat surface formed along. There is known a light emitting device in which a strip-shaped light reflecting layer extending in the longitudinal direction is formed by printing on a peripheral surface of a columnar light guide, particularly a cylindrical light guide, but a peripheral surface having a small radius of curvature of about 1 to 10 mm. It is extremely difficult to print a narrow light-reflecting layer, the coating thickness of the light-reflecting layer tends to vary, and even when printed, peeling easily occurs. Therefore, in an example of the present invention,
A flat surface was previously formed on the peripheral surface of the cylindrical light guide, and the light reflection layer was formed by printing on this flat surface. Therefore, the light reflecting material can be applied to a uniform thickness even on a narrow flat surface, and peeling can be made difficult. The columnar light guide according to claim 1 includes not only a columnar shape, but also a shape having a curved surface such as an ellipse or an ellipse, and further includes a polygonal columnar light guide such as a triangular prism, a quadrangular prism, or a pentagonal prism. The polygonal column shape includes not only a regular polygonal shape but also an irregular polygonal shape. According to a second aspect of the present invention, in the first aspect, the columnar light guide is a columnar light guide, and the light reflection layer is provided on a peripheral surface of the columnar light guide along a longitudinal direction. It is characterized in that it is formed on a strip-shaped flat surface having a width. When the columnar light guide is supported by a lamp holder or the like, it is difficult to determine its directionality. In particular, when adopting a configuration in which the light reflected by the strip-shaped light reflection layer provided on the side surface is emitted from the opposite side surface,
Although it is necessary to accurately set the direction of the side surface on the exit side to a specific direction, it is difficult to perform positioning because the cylindrical light guide has no clue for positioning in the rotational direction. On the other hand, in the present invention, since the band-shaped flat surface provided in the notch shape is provided, it becomes easy to determine the direction of the emission side surface by using this as a clue.

According to a third aspect of the present invention, in the first or second aspect, the flat surface includes an arcuate convex surface or an arcuate concave surface having a large radius of curvature. The flat surface does not need to be a perfect flat surface, but is a curved surface having a radius of curvature larger than that of the cylindrical light guide and has a shape close to a flat surface capable of printing, It is included in the flat surface of. In this case, the curved flat surface may be a convex surface protruding in the outer diameter direction or a concave surface recessed in the inner diameter direction. The invention of claim 4 relates to claim 2
Or 3, the cylindrical light guide includes an elliptical light guide, an elliptic light guide, a curved surface of the elliptic light guide having a large radius of curvature, or a strip of the elongated light guide. The light reflecting layer is formed on a flat surface. The cylindrical light guide body includes not only a columnar light guide body having a perfect circular cross section, but also an elliptical and elliptical cross section. Therefore,
Of the outer peripheral surface of the elliptic cylindrical light guide, a curved surface having a large radius of curvature may be used as a flat surface to form a light reflection layer in this portion,
A light-reflecting layer may be formed on a flat portion of the outer peripheral surface of the oblong-shaped light guide body as a flat portion. The band-shaped light emission effect by the light reflected by the light reflection layer being emitted from the opposite side surfaces is the same as that of the cylindrical light guide. Also,
Since the cross-sectional shape is not circular, it becomes easy to accurately determine the side surface on the emission side in a certain direction when supporting the lamp holder. According to a fifth aspect of the present invention, in the first, second, third, or fourth aspect, the light reflecting layer is formed by printing, applying a light reflecting material by spraying, or applying a tape having a light reflecting material. It is characterized by
Printing methods such as the hot stamping method increase the cost of the printing apparatus and increase the number of printing steps.However, if a light-reflecting material is applied by spraying with a mask on the outer peripheral surface of the light guide other than the flat surface, the light can be easily printed. A reflective layer can be formed. Even if unevenness exists on the flat surface, the spray coating method enables uniform coating while following the uneven shape. A sixth aspect of the present invention is characterized in that, in the first, second, third, fourth, or fifth aspect, the diameter or sectional shape of the columnar light guide is not constant in the longitudinal direction. In order to make the width of the band-shaped light emission by one columnar light guide not a fixed width but a change in the light emission width, it is also possible to partially widen or narrow the width in order to appeal to the visual sense of the player and to increase the interest. Is an effective means to. In this case, the width of the flat surface may be changed widely according to the change of the width of the light guide. A gaming machine according to a seventh aspect of the present invention includes the columnar light emitting device according to the first to sixth aspects. By applying the columnar light emitting device as described above to a pachinko game machine, an arrangement ball game machine, or the like, it is possible to give the player a pleasant or satisfying feeling.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below in detail with reference to the embodiments shown in the accompanying drawings. 1A, 1B, and 1C are a front view, an exploded perspective view, and an AA cross-sectional view showing a configuration of a columnar light emitting device 1 according to an embodiment of the present invention. This columnar light-emitting device 1 includes a transparent columnar light guide 2, a light source 3 which is disposed at least at one end in the longitudinal direction of the columnar lightguide 2, and which causes light to enter the columnar lightguide 2, and a columnar lightguide. The light reflection layer 4 formed on a part of the peripheral surface of the body 2. The light reflection layer 4 is formed by printing or the like on the strip-shaped flat surface 10 formed along the longitudinal direction on the peripheral surface of the columnar light guide 2. In the illustrated example, the columnar light guide 2 has a columnar basic shape, and the light reflection layer 4 is provided on a strip-shaped flat surface 10 of a predetermined width provided along the longitudinal direction on the circumferential surface of the columnar light guide 2. Is formed in. The flat surface 10 includes not only a completely flat surface but also a gentle curved surface (arc surface) having a radius of curvature larger than the radius of curvature of the outer peripheral surface of the cylindrical portion which is the main body of the cylindrical light guide 2. Further, the flat surface as a curved surface having a large radius of curvature includes not only a convex surface but also a concave surface. In short, the flat surface 10 in this embodiment means a surface that is flattened to such an extent that the light reflecting material can be easily applied and formed by various printing methods described later. In order to enhance the directivity of the light that is incident from the light source 3 and reflected by the light reflection layer 4, the flat surface 10 may be a convex surface protruding in the outer diameter direction,
Even if it is a completely flat surface, high-luminance side emission can be obtained. The area range of the flat surface 10 forming the light reflection layer 4 is not particularly limited, but is 50% of the total outer peripheral area of the light guide 2.
It is preferable to keep the following, from the light source 3 to the columnar light guide 3
The light entering the inside is reflected by the light reflection layer 4 and emitted from the opposite side surfaces. At this time, the light reflection layer 4 and
A light shielding film may be formed on a portion other than the side surface from which light is emitted.

The material of the columnar light guide 2 is not limited as long as it is a transparent material having a high refractive index.
An elastomer is used, and specifically, acrylic resin and polycarbonate are preferable. It is preferable that the columnar light guide 2 is molded by injection molding or extrusion molding, and the flat surface 10 is collectively molded at the time of molding. As the light reflection layer 4, a coating material in which a reflection material such as a white pigment or a scattering material is mixed is used, and the light reflection layer 4 is uniformly applied with a required thickness by a printing method. The coating material is not particularly limited, but, for example, a thermosetting resin or a material using an adhesive as a binder is used. The printing method of the light reflecting layer 4 is not particularly limited, but for example, a printing method using a hot stamp is used. As is well known, the hot stamp method is a printing method in which the stamp foil is transferred by pressing the stamp foil with a metal hot plate heated on the surface of the resin molded product. In this embodiment, the light reflecting layer 4 is formed on the flat surface 10 of the columnar light guide 2 using a stamp foil in which a transfer layer made of a light reflecting material is laminated on a base sheet. In addition to the printing method, a liquid reflection material may be applied by spraying, a tape having a light reflection layer may be attached, or the like. Printing methods such as the hot stamping method increase the cost of the printing apparatus and increase the number of printing steps.However, if a light-reflecting material is applied by spraying with a mask on the outer peripheral surface of the light guide other than the flat surface, the light can be easily printed. A reflective layer can be formed. Even if unevenness is present on the flat surface, the spray coating method makes it possible to apply a sufficient film thickness while following the uneven shape. When a tape having a light reflection layer is attached to the columnar light guide 2, a transparent tape having a width equivalent to the circumference of the columnar light guide 2 is used, and the light reflection layer on the tape is used. Is aligned with the flat surface 10 and then the tape is adhered to the entire outer peripheral surface of the columnar light guide 2. Alternatively, the light-shielding paint may be applied in advance to the tape surface corresponding to the portion other than the light emission surface. Alternatively, the tape may be adhered only to the portion of the columnar light guide 2 excluding the emission surface. As the light source 3, for example, a full color LED is used. A full-color LED is a light emitting element that can switch and output a plurality of colors (7 colors) from one light source. Alternatively, a plurality of monochromatic LEDs may be arranged to combine various emission colors to express various colors. In this case, the three primary colors of light are red, green,
The desired color is output using a single blue LED. LED3
Is mounted on the printed circuit board 5 and attached to the end of the columnar light guide 2 by a sleeve 6 as a connecting means. The light source 3 may be provided at one end of the columnar light guide 2 or at both ends thereof.

The columnar light guide 2 of this embodiment includes not only a columnar light guide but also an elliptic light guide and an elliptic light guide. That is, FIGS. 2A and 2B are cross-sectional views showing an example in which the columnar light guide 2 is configured by an elliptical columnar light guide and an elliptic columnar light guide. In the elliptic light guide 2 shown in (a), the light reflecting material 4 is applied and formed with the surface having a large radius of curvature as the flat surface 10. Further, in the long cylindrical light guide 2 shown in (b), a light reflecting material is applied and formed on the flat surface 10, which is a literally flat surface, so that the reflected light is emitted from the other surface facing the flat surface. . Also,
The columnar light guide 2 may have a polygonal columnar shape, and a light reflecting layer may be formed on one or a plurality of adjacent surfaces thereof. As the polygonal prism-shaped light guide, various polygonal prism shapes such as a triangular prism shape and a quadrangular prism shape can be assumed, and the polygonal prism-shaped light guide is not limited to a regular polygonal shape and may be an irregular prismatic shape. In this case, apply a light reflecting material to one surface or a plurality of flat surfaces,
It is configured to emit light from the opposite surfaces. As described above, the columnar light guides 2 of the present embodiment include not only the columnar shape itself but also a shape including at least one flat surface (including a curved surface having a small curvature) such as a polygonal columnar shape. The flat surface 10 serves as a clue when the light guide is attached to, and the positioning is easy and accurate. Further, the diameter or the cross-sectional shape of the columnar light guide does not necessarily have to be constant along the longitudinal direction, and by making some diameters larger or smaller than other diameters, the columnar light guide 2 can be formed. You may devise so that the shape of the light emitted from may be changed.
That is, in order to increase the enjoyment of the player, it is possible to partially widen or narrow the width of the band-shaped light emission by one columnar light guide 2 in order to give a change in the light emission width instead of a constant width. Is an effective means. In this case, the width of the flat surface 10 (light reflecting layer 4) may be changed to be wide or narrow according to the change in the width of the light guide.

Next, FIG. 3A is a front view of a main portion (game board) of a pachinko gaming machine as an example of a gaming machine provided with the columnar light emitting device 1 of the present invention, and FIG. FIG. In the game area 22 of the game board 21, board surface parts such as a pattern variation display device 23, a gate switch 24, and a winning opening 25 are arranged, and a guide rail 26 is arranged at the outer peripheral edge of the game area 22. . A lamp holder 30 for holding the columnar light emitting device 1 and the light emitting device of the present invention is embedded and arranged at a proper position along the periphery of the game area 22 of the game board 21. That is, the upper surface 3 of the lamp holder 30 is previously set on the game area 22 where the lamp holder 30 is arranged.
A hole 22a is formed so that 0a becomes stepless with the upper surface of the game area 22, and the lamp holder 30 is fitted into the hole 22a and fixed with screws or the like, so that the game board Can be used as an electric decoration device (edge lamp).

FIG. 4A is an external perspective view of a holder (the lower right holder of FIG. 3A) in which the columnar light emitting device is housed, FIG. 4B is a sectional view taken along line BB, and FIG. 4C is an exploded perspective view. is there. Note that FIG.
In (c), the lamp cover 32 and the columnar light guide are drawn as a perspective view seen from below. This lamp holder 30
Is a resin such as plastic and has a columnar light guide 2 on the upper surface.
A base 31 supporting the above, a plastic lamp cover 32 fixed so as to cover the base 31 with the columnar light guide 2 interposed therebetween, LEDs 33 as light sources arranged at both ends of the base 31, A printed circuit board 34 that supports the LEDs 33, lead wires 35 extending from the printed circuit board 34, a connector 36, and the like are provided.

The base 31 is provided with a mounting surface 41 on which the columnar light guide 2 is mounted, and a plurality of light guides projecting from the mounting surface 41 at predetermined intervals to directly support the lower surface of the columnar light guide 2. Body support protrusion 4
1a and LEDs formed on both ends of the mounting surface 41 in the longitudinal direction
It has an opening 41b through which the printed circuit board 34 that supports 33 is projected upward, and a hakama-shaped hanging wall 42 that hangs downward from almost the entire outer peripheral edge of the mounting surface 41. Each printed circuit board 34 supports the LED 33 on the inner surface,
It is connected to the lead wire 35 by a connector 45 provided at the lower end. The columnar light guide 2 is made of an insulating material having a flat surface 10 having a light reflection layer 4 supported on a support protrusion 41a on the mounting surface of the base 31, and having flanges 50b at both ends thereof. The support hole 50a of the sleeve 50 is fitted.
The support hole 50a of the sleeve 50 has a flat shape in a portion corresponding to the flat surface 10 so as to closely match with the outer peripheral surface shape of the columnar light guide 2. The collar 50b of the sleeve 50 is
The columnar light guide 2 is positioned with respect to the lamp cover 32 by being locked between the positioning ribs 32 a provided on the inner wall of the lamp cover 32. Further, the end of the columnar light guide 2 inserted from one end opening of the support hole 50a is locked in the middle of the support hole 50a of the sleeve 50, and the LED 33 is inserted into the sleeve from the other end opening of the support hole 50a. It fits into close contact with the end face of the columnar light guide 2. Therefore, the sleeve 50 also functions as a means for guiding the light from the LED 33 so that the light enters from the end face of the columnar light guide 2 to the inside thereof without leaking. The lamp cover 32 is light-shielded except for the transparent portion 55 provided on the upper surface, and the light from the side surface on the emission side of the columnar light guide 2 is emitted to the front side of the game board surface through the transparent portion 55. Will be done.

In this state, the columnar light guide 2 having the sleeves 50 fitted to both ends is accurately positioned on the mounting surface 41 of the base 31 so that the side surface on the emission side faces upward. After fitting the LED 33 through the other end opening of the lamp holder 32, the lamp cover 32 is covered, and the base 31 is screwed and fixed by any other fixing means (for example, snap fit or the like).
0 can be completed. At this time, since the flat surface 10 of the columnar light guide 2 can be stably supported on the support protrusion 41a of the base 41, the side surface on the emission side can be accurately faced upward (without special fine adjustment work). It can be set in the direction orthogonal to the game board surface). In addition, as shown in the drawing, the columnar light guide 2 having a shape curved with a small curvature in the longitudinal direction.
When the columnar light guide 2 is housed in the similarly curved lamp holder 30, the columnar light guide 2 easily rotates in the lamp holder.
There is a sufficient merit of using the flat surface 10 of the columnar light guide 2 as a clue for positioning in the circumferential direction. When the linear columnar light guide is housed in the linear lamp holder, the columnar light guide is easier to rotate.Therefore, the flat surface is used as a clue when positioning in the circumferential direction. , Which reduces the need for fine tuning. Further, since the light incident from the end of the columnar light guide 2 made of a dense plastic material is reflected by the strip-shaped light reflection layer 4 provided on one side surface and emitted from the opposite side surface side. The emitted light is made uniform, and it is possible to obtain a uniform strip-shaped light emission amount without any unevenness or lightness on the appearance, and it is possible to enhance the lighting effect on the game board. Although the flat surface 10 of the columnar light guide 2 according to the above-described embodiment is a flat surface or a curved surface, small uneven portions or the like may be provided on the flat surface 10 to diffusely reflect light. Such small uneven portions may be linear convex portions or groove-shaped concave portions. In the printing of the light reflecting material by the hot stamp method,
Printing on such an uneven surface is difficult, but printing on the uneven surface is also possible by adopting application of a light reflecting material by spraying or the like.

When a pachinko gaming machine is equipped with the columnar light emitting device of the present invention, for example, by lighting or blinking the columnar light emitting device when a special game appears,
Not only can the player feel pleasant and satisfied, but also the hall manager can be notified of the occurrence of the special game. The columnar light emitting device of the present invention can be applied not only to a pachinko game machine but also to a game machine in general equipped with a light emitting means such as an arrangement ball for performing electric decoration.

[0015]

As described above, according to the present invention, in a columnar light emitting device having a columnar light guide provided with a strip-shaped light reflection layer on the peripheral surface, a light reflection paint is applied to the peripheral surface of the columnar light guide. In addition to facilitating the work of printing, the work of determining the emission direction of the reflected light from the light reflecting layer is made more accurate and easier, the rate of defective products is reduced, and the columnar light emitting device with improved productivity is provided. It is possible to provide a provided game machine. The invention of claim 1 is
A flat surface was previously formed on the peripheral surface of the cylindrical light guide, and the light reflection layer was formed by printing on this flat surface. Therefore, the light reflecting material can be applied to a uniform thickness even on a narrow flat surface, and peeling can be made difficult. According to the second aspect of the present invention, since there is a band-shaped flat surface provided in a notch shape, it becomes easy to determine the direction of the side surface on the emission side by using this as a clue. In the invention of claim 3, the flat surface includes an arcuate convex surface or an arcuate concave surface having a large radius of curvature. That is, the flat surface does not have to be a perfect flat surface, but is a curved surface having a radius of curvature larger than that of the cylindrical light guide and has a shape close to a flat surface that allows printing. It is included in the flat surface of the present invention. According to the invention of claim 4, the columnar light guide includes not only a columnar light guide having a perfect circular cross-sectional shape, but also an elliptical or oval cross-sectional shape. Therefore, a curved surface having a large radius of curvature of the outer peripheral surface of the elliptic cylindrical light guide may be used as a flat surface to form the light reflection layer on this portion, or a flat surface portion of the outer peripheral surface of the elliptic light guide may be formed. May be used as a flat surface and a light reflection layer may be formed on this portion. The band-shaped light emission effect by the light reflected by the light reflection layer being emitted from the opposite side surfaces is the same as that of the cylindrical light guide. Further, since the cross-sectional shape is not circular, it becomes easy to accurately determine the side surface on the emission side in a certain direction when supporting the lamp holder. Claim 5
In the invention, since the light guide material outer peripheral surface other than the flat surface is masked and the light reflecting material is applied by spraying, the light reflecting layer can be easily formed. Even if unevenness exists on the flat surface, the spray coating method enables uniform coating while following the uneven shape. In the invention of claim 6, since the diameter or the cross-sectional shape of the columnar light guide is not constant in the longitudinal direction, in order to change the band-shaped light emission by one columnar light guide to not the constant width but the light emission width, The width can be partially widened or narrowed. According to the invention of claim 7, the columnar light emitting device as described above is applied to a pachinko game machine, an arrangement ball game machine or the like, so that the player can be provided with a pleasant sensation or satisfaction.

[Brief description of drawings]

1A, 1B, and 1C are a partial cross-sectional front view, an exploded perspective view, and a cross-sectional view showing a configuration of a columnar light emitting device according to an embodiment of the present invention.

2A and 2B are cross-sectional views of columnar light guides according to other embodiments, respectively.

3A and 3B are a front view and a sectional view taken along line AA of a pachinko gaming machine to which the columnar light emitting device of the present invention is applied.

4 (a), (b) and (c) are overall perspective views showing the configuration of a lamp holder equipped with the columnar light emitting device of the present invention,
BB sectional drawing and an exploded perspective view.

5A and 5B are a perspective view and a sectional view of a conventional columnar light guide.

[Explanation of symbols]

1 columnar light emitting device, 2 columnar light guide, 3 light source, 4 light reflection layer, 5 printed circuit board, 6 sleeve, 10 strip flat surface, 21 game board, 22 game area, 22a hole, 2
3 symbol variation display device, 24 gate switch, 25
Prize hole, 26 guide rail, 30 lamp holder, 30
a top surface, 31 base, 32 lamp cover, 33
LED, 34 Printed circuit board, 35 Lead wire, 36
Connector, 41 mounting surface, 41a light guide support protrusion, 4
1b opening, 42 hanging wall, 50 sleeve, 50a
Support hole, 55 transparent part.

Claims (7)

[Claims] 1. A transparent columnar light guide, a light source arranged at an end portion of the columnar light guide in a longitudinal direction to allow light to enter the columnar light guide, and formed on a peripheral surface of the columnar light guide. In the columnar light emitting device, the light reflecting layer is formed on a flat surface formed along the longitudinal direction on the peripheral surface of the columnar light guide. Columnar light emitting device. 2. The columnar light guide is a cylindrical light guide,
The columnar light-emitting device according to claim 1, wherein the light reflection layer is formed on a strip-shaped flat surface of a predetermined width provided along the longitudinal direction on the peripheral surface of the cylindrical light guide. 3. The columnar light emitting device according to claim 1, wherein the flat surface includes an arcuate convex surface having a large radius of curvature or an arcuate concave surface. 4. The cylindrical light guide is an elliptic light guide,
The light reflection layer is formed on the curved surface of the elliptical light guide having a large radius of curvature, or on the strip-shaped flat surface of the elliptic light guide, including the elliptic light guide. Item 2. The columnar light emitting device according to item 2 or 3. 5. The light reflection layer is formed by printing or applying a light reflection material by spraying, or by pasting a tape provided with the light reflection material. The columnar light-emitting device according to any one of 3 and 4. 6. The columnar light emitting device according to claim 1, wherein a diameter or a sectional shape of the columnar light guide is not constant in a longitudinal direction. 7. A gaming machine comprising the columnar light emitting device according to claim 1. Description: