JPH07204321A - Game machine and projection type display used therefor - Google Patents

Abstract

PURPOSE:To obtain a game machine which ensures the playing of a game with greater fun by enhancing game attraction of a game machine such as a pachinko machine. CONSTITUTION:In a game machine in which balls are rolled down along a rolling surface 2 to accomplish a game like a pachinko machine or the like, a screen 6 is arranged on a rolling surface of the balls 1 and an animation is projected onto the screen with a number varying, for example, in a slot machine from a projector 7. The screen is mounted free to move so that it can stick out to the rolling surface 2 and a conversion is made to let the balls be guided to a score section part with the screen sticking out to score easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a game machine such as a pachinko machine or a smart ball machine, and a projection type display device that can be used in these game machines.

[0002]

2. Description of the Related Art As a recent tendency, a liquid crystal display is attached to a game machine such as a pachinko machine, and a liquid crystal display is used to display a multi-digit number like a slot machine. A game is played in which a special prize is awarded when all the numbers match "7".

[0003]

Conventionally, since a liquid crystal display plate is used as a display device, it is difficult to mount the liquid crystal display plate on a game machine in a freely movable manner. Therefore, there is a disadvantage that the mounting position of the display device is used only for display and cannot be changed to, for example, a scoring part of the ball or a passage changing means of the ball.

An object of the present invention is to mount a display unit so that it can move in and out of a rolling surface of a ball, and
When the sphere enters a certain scoring part, the display part is projected from the rolling surface of the sphere, and when the display part is protruding from the rolling surface of the sphere, the sphere enters the scoring part provided on the back surface of the display part. In addition to displaying numbers, it can be used to enhance game characteristics, such as by providing a ball path on the back surface of the display section and guiding the ball to the score point on the downstream side. An object of the present invention is to provide a game machine equipped with the means and a projection type display device used for the game machine.

[0005]

According to the present invention, a projection screen is movably arranged on the rolling surface of a ball of a game machine such as a pachinko machine or a smart ball that competes for a score by rolling a ball. , Projecting numbers etc. on this screen from a projector and providing a score part or passage changing means for receiving the sphere on the back of the screen, and when the sphere enters a specified score part, this screen It is configured to project from the rolling surface so that the ball can enter the score part provided on the back surface of the screen by this projection, or a guide is provided on the back surface or the upper side of the screen and the ball is provided to the score part on the downstream side by this guide. It is designed to improve the game by changing to a state where it is easy to score by guiding the player.

The present invention further provides a projection display device for a game machine, which is provided with a focus maintaining means for maintaining the in-focus state by moving the screen and the projector or the projection lens in conjunction with each other. is there.

[0007]

FIG. 1 shows an embodiment of the present invention. In this embodiment, an example in which the present invention is applied to a pachinko machine is shown. In the figure, 1 is a sphere, and 2 is a rolling surface for rolling the sphere. As is well known, nails 3 are planted on the rolling surface 2, which interferes with the fall of the ball 1 to give irregularity to the movement of the ball 1 and to make the game interesting. 4 shows the glass on the surface.

In the present invention, the window 5 is formed on the rolling surface 2 of the ball 1, and the screen 6 is mounted on the window 5. Screen 6
Uses a light-transmissive screen. An image is projected on the screen 6 through a projector 7 and a projection lens 8 provided behind it. The projector 7 incorporates, for example, a light-transmissive liquid crystal cell (not particularly shown), and a number such as a display portion of a slot machine is projected on the liquid crystal cell. Light is applied from a light source to a light-transmissive liquid crystal display cell, and the transmitted light is magnified by a projection lens 8 and projected on a screen 6,
The numbers shown in FIG. 2 can be displayed on the screen 6. The numbers displayed on the liquid crystal cell can be displayed by generating image data such as a television signal by an electronic circuit and giving the image data to the liquid crystal cell. By making the image displayed on the liquid crystal cell a moving image, for example, each time the sphere 1 enters the score, the numbers of each digit shown in FIG. 2 can be expressed as if the drum rotates and the numbers rotate.

According to the present invention, the screen 6 is supported by the driving means 9 so that it can be moved from the rolling surface 2 to the projected state and from the projected state to the original position. As the drive means 9, for example, a linear drive mechanism using an electromagnetic solenoid or a motor capable of forward / reverse rotation can be used. When the screen 6 is projected forward, the sphere 1 can pass through the back side of the screen 6. In this example, the score portion 11 is arranged on the back side of the screen 6. The score portion 11 is, for example, a gutter-shaped body 1 provided along the lower side of the screen 6 as shown in FIG.
1A and a sphere discharge groove 11B for discharging the sphere 1 taken into the gutter 11A to a sphere counting unit (not particularly shown), and a structure for giving a score to all spheres falling on the back side of the screen 6 You can

4A and 4B show the case where the passage changing means 12 for the sphere 1 is provided on the back surface of the screen 6. In the example of FIG. 4A, the passage changing means 12 is configured by arranging a gutter-like passage having a shape that is highest at the center of the screen 6 and becomes lower toward both sides on the back surface of the screen 6. In this case, in the state where the screen 6 projects from the rolling surface 2, the ball 1 that has fallen to the back side of the screen 6 is guided by the passage changing means 12 provided on the back surface of the screen 6 and the score portion 13A provided downstream or You can get a score by dropping to 13B.

In the example shown in FIG. 4B, the passage changing means 12 is provided on the upper side of the screen 6. When the screen 6 protrudes from the rolling surface, the ball rides on the passage changing means 12 provided along the upper side of the screen 6 and moves to the right or left side, and either of the score parts 13A or 13B provided on both sides thereof. It becomes a score in one side. According to the configuration of FIG. 4B, the sphere 1
Does not pass behind the screen 6, so that the shadow of the sphere 1 is not projected on the screen 6.

As described above, when the screen 6 is projected from the rolling surface, it is possible to make the game interesting by changing to a state in which a score can be easily obtained. Whether or not the screen 6 is projected may be determined by, for example, projecting the screen 6 when a ball enters the score that is the most difficult to insert, or when the balls continuously enter a predetermined number or more of scores. Various cases can be considered. Further, when a predetermined number or more of balls do not enter the score part, the screen 6 can be controlled to return to the original non-protruding state.

From the above description, the features of the game machine according to the present invention can be understood. The projection type display used in the game machine according to the present invention will be described below. In the embodiment shown in FIG. 1, the screen 6 is simply moved. However, when the screen 6 is moved, the position of the screen 6 is displaced from the focal point of the projection lens 8, which causes a problem that the image is blurred. The projection lens 8 is provided with a diaphragm (optical diaphragm), and the diaphragm is sufficiently narrowed down to form an image on the screen 6, so that the depth of field becomes deep, and even if the screen 6 is moved a little, the problem of becoming out of focus is solved. it can. However, the use of the diaphragm causes a dark image, resulting in a defect that the efficiency of the display is deteriorated.

For this reason, the present invention proposes a structure provided with a focus maintaining means for maintaining the in-focus state by moving the projection lens 8 or the projector 7 or both together with the movement of the screen 6. FIG. 5 shows an example thereof. In this example, the screen 6, the projection lens 8 and the projector 7 are mounted on a common frame 14, the frame 14 is supported by wheels 15 and rails 16, and the screen 6, the projection lens 8 and the projector 7 are integrated to drive means. 9 shows a case in which the camera is moved by 9 to maintain the focus. Therefore, here, the frame 14, the wheel 15, and the rail 16 constitute the focus maintaining means PI.

FIG. 6 shows another example of the focus maintaining means PI. In this example, the focus maintaining means PI is constituted by a pantograph mechanism. The panda graph mechanism pivotally supports the two levers 17A and 17B on a shaft 17C at a position corresponding to the ratio of the movement amount. Two levers 17A and 1
The end of 7B engages with an elongated hole formed in the screen 6. When the screen 6 is pushed forward by the driving means 9 due to the engagement with the elongated hole, the crossing angle θ of the levers 17A and 17B changes in the direction of decreasing. With this, shaft 17C
The same structure on the other side of the lever has a long hole 17
Move position D to the rear. The projection lens 8 is attached to the lever 17D. With this structure, the projection lens 8 can be moved toward the projector 7.

That is, the optical characteristics of the lens are given by 1 / a + 1 / b = 1 / f as is well known. a is the distance between lens objects, b is the distance between lens images, f is the focal length of the lens,
Here, the screen 6 is moved forward to move the lens image distance b.
If 1 is moved in the increasing direction, 1 / b will be decreased. On the other hand, 1 / a + 1 / b is constant, so
It suffices to control the direction so that 1 / a is increased.
That is, the distance a between the lens objects may be controlled to be reduced. As a result, when the screen 6 is projected forward, the projection lens 8 may be moved in a direction approaching the projector 7 correspondingly. The ratio of the movement amounts is 1 / a + 1 / b = 1 / f (1) 1 / a '+ 1 / b', where a'is the distance between lens objects after movement and b'is the distance between lens images. = 1 / f (2) From equations (1) and (2), 1 / a + 1 / b = 1 / a ′ + 1 / b ′ (b′−b) / bb ′ = (a−a ′) / aa ′ aa ′ / bb ′ = (a−a ′) / (b′−b) Here, if the movement amount on the lens object distance a side is Δa and the movement amount on the lens image distance b side is Δb, Δa = a-
a ′ and Δb = b′−b.

Therefore, the ratio of the movement amount is Δa / Δb = a (a-Δa) / b (b + Δb). Shaft 17C of levers 17A and 17B shown in FIG.
Focus state of L ₁ position to the projection lens 8 _side, when the L ₂ on the screen 6 side, of the focus by setting the ratio of L ₁ and L ₂ in a ratio of _{L 1 / L 2 = Δa /} Δb Can be maintained.

FIG. 7 shows another embodiment of the focus maintaining means PI. In this example, the focus maintaining means PI is composed of the large gear 18A, the small gear 18B, and the rack 18C that meshes with the large gear 18A, and the rack 18D that meshes with the small gear 18B. Also in this embodiment, when the diameter of the small gear 18B is D ₁ and the diameter of the large gear 18A is D ₂ , the diameter ratio may be set to D ₁ / D ₂ = Δa / Δb.

FIG. 8 shows still another embodiment of the focus maintaining means PI. In this example, the large pulley 19A and the small pulley 19
B, steel wires 19C, 19D and extension spring 19
The case where the focus maintaining means PI is constituted by E and E is shown. Also in this embodiment, the ratio of the diameters of the small pulley 19B and the large pulley 19A may be taken as in the case of FIG. Further, the force for returning the projection lens 8 to the original position is given by the pulling spring 19E.

Although various embodiments of the focus maintaining means PI have been described above, the projection lens 8 is mainly moved in association with the movement of the screen 6, but a structure in which the projector 7 is moved may be adopted. Is easy to understand. Further, in the above-described embodiment, the example in which the present invention is applied to a pachinko machine has been described, but it can be easily understood that it can be applied to other game machines, for example, a smart ball machine.

[0021]

As described above, according to the present invention, since the display is of the projection type, it is possible to movably mount the screen 6 serving as the display unit. Therefore, it is possible to adopt a method in which the screen 6 is projected from the rolling moving image of the sphere 1 during the game, the sphere 1 is guided to the point portion by the projection, and the score is changed to a state in which the score is easy. A game console can be provided. Further, since the focus maintaining means PI is provided even when the screen 6 is moved,
The in-focus state can be maintained.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a front view showing an example of a main part of the present invention.

FIG. 3 is a perspective view showing an example of a main part of the present invention.

4A and 4B are front views showing another example of the main part of the present invention.

FIG. 5 is a side view for explaining the focus maintaining means used in the embodiment of the present invention.

FIG. 6 is a side view showing another example of the focus maintaining means used in the embodiment of the present invention.

7 is a side view similar to FIG.

FIG. 8 is a side view similar to FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ball 2 rolling surface 3 nails 4 glass 5 window 6 screen 7 projector 8 projection lens 9 driving means 11 scoring part 12 passage changing means 13A, 13B scoring part PI focus maintaining means

Claims (7)

[Claims] 1. A game machine competing for points by rolling a ball along a rolling surface and allowing the ball to enter a score portion provided on the rolling surface, wherein a light transmissive screen is provided on the rolling surface. Installed, projecting an image on the screen from the rear side by a projector, and providing screen moving means for projecting the screen from the rolling surface according to the score and returning the screen to be flush with the rolling surface. A game machine characterized by that. 2. The game machine according to claim 1, wherein a scoring portion is provided on the back surface of the screen provided on the rolling surface, and a ball is provided on the scoring portion provided on the back surface of the screen with the screen protruding from the rolling surface. A game machine characterized by being configured to be able to enter. 3. The game machine according to claim 1, wherein a passage changing means for the ball is provided on the back surface of the screen provided on the rolling surface of the ball, and the screen is projected in a state in which it projects from the rolling surface and in a state in which it does not project. A game machine characterized in that the passage is changed. 4. The game machine according to any one of claims 1 to 3, further comprising: focus maintaining means for adjusting a focus of an image projected on the screen in a projected state and a non-projected state of the screen. Projection-type display device for game machines. 5. The projection display device for a game machine according to claim 4, wherein the focus maintaining means is configured so that the screen, the projector and the projection lens are integrated and movable. apparatus. 6. The projection display device for a game machine according to claim 4, further comprising an interlocking mechanism for moving the projection lens in association with the movement of the screen, wherein the interlocking mechanism constitutes the focus maintaining means. Projection-type display device for game machines. 7. The projection display device for a game machine according to claim 4, further comprising an interlocking mechanism for moving the projector in conjunction with the movement of the screen, wherein the interlocking mechanism constitutes the focus maintaining means. Projection-type display device for game machines.