JP2014210094A - Windmill accessory - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a windmill accessory capable of achieving stable rotational movement.SOLUTION: A windmill 100 includes a shaft hole 101 in which a tapered hole 123 extending in a direction of a rotational axis X, a first bearing hole 114 provided on a front end side in the direction of the rotational axis X of the tapered hole 123, and a second bearing hole 124 provided on a rear end side in the direction of the rotational axis X of the tapered hole 123 are coaxially formed. The hole diameter of the first bearing hole 114 is larger than outer diameters of a shaft part 91 of a windmill nail 90 and a knurl part 92, and smaller than an outer diameter of a head part 94. The hole diameter of the second bearing hole 124 is substantially the same as the hole diameter of the first bearing hole 114. The hole diameter of the tapered hole 123 is larger than the hole diameters of the first bearing hole 114 and the second bearing hole 124.

Description

The present invention relates to a windmill accessory that is provided in a game area and changes in the falling direction of a game ball.

Conventionally, game machines such as a pachinko game machine, a sparrow ball game machine, and an arrangement ball are known as ball game machines using game balls. For example, in a pachinko gaming machine, a configuration is used in which a game ball is fired into a game area formed on the front side of the game board, and the game ball is dropped and moved while the game ball is inserted into various winning holes, etc. It has become. Then, the combination of symbols when the stop display is performed after changing a plurality of symbols (decorative symbols) in the effect display device in advance when the game ball enters the start winning opening provided in the game area is preliminarily determined. If the winning symbol is set, a special gaming state (big hit) is established. In this special gaming state, a large winning opening called an attacker provided in the gaming area is opened to facilitate the entry of gaming balls, thereby enabling the player to acquire a large number of winning balls. ing.

Here, a rotating body called a windmill is attached to the game board forming the game area so as to change the falling direction of the game ball fired in the game area (see, for example, Patent Document 1). reference). In this windmill, a disk portion is integrally provided on the front side of a blade portion having a plurality of blades, and an axial hole for inserting a nail member along the central axis is formed. The windmill is configured to be freely rotatable around a nail member inserted through the shaft hole.

JP 2007-282651 A

By the way, in recent years, as a substitute for a veneer game board, for example, a game board made of a synthetic resin such as an acrylic resin or a polycarbonate resin has become mainstream. When this resin game board is used, in order to prevent the game board from cracking, it is usual to drill a pilot hole in the game board in advance and then drive the shaft portion of the nail member. In order to secure the holding force of the nail member driven into the pilot hole, a structure in which a knurling portion for preventing the nail member is formed near the tip end of the shaft portion of the nail member is often used.

However, in the nail member as described above, the outer diameter of the knurled portion is formed larger than the outer diameter of the shaft portion, and in order to insert the nail member into the windmill and drive it into the game board, the shaft hole of the windmill is formed. As a result, the clearance between the shaft portion of the nail member and the shaft hole of the windmill is increased. For this reason, when the wind turbine mounting angle is changed by adjusting the inclination of the nail member with respect to the panel surface, the contact portion (bearing portion) between the shaft portion of the nail member and the wind turbine shaft hole is likely to fluctuate, and the rotation of the wind turbine is unstable. The problem of becoming.

This invention is made | formed in view of such a subject, and it aims at providing the windmill accessory which can implement | achieve the stable rotational motion.

In order to achieve such an object, a windmill accessory according to the present invention includes a synthetic resin game board having a game area formed on the front side, and launches the game ball into the game area by launching the game ball. In a ball and ball game machine in which a predetermined game is performed by dropping and moving in a game area, a bearing portion (for example, a shaft hole 101 in the embodiment) through which a predetermined nail member (for example, a windmill nail 90 in the embodiment) is inserted is provided. A windmill accessory that is provided rotatably around a nail member that is implanted on the front side of the game board, and that changes the fall movement path of the game ball when the game ball collides, The nail member includes a shaft portion that extends in the central axis direction and serves as a rotating shaft of the windmill accessory, a head portion that is formed to have a larger diameter than the shaft portion on the front end side in the central axis direction of the shaft portion, and a center of the shaft portion Around the center axis, with a larger diameter than the shaft on the rear end side in the axial direction A knurled portion that has a spiral projection and is driven into the game board, and the bearing portion extends in the direction of the axis of rotation of the windmill accessory (for example, the tapered hole 123 in the embodiment), A first bearing hole provided on the front end side in the rotation axis direction of the intermediate hole and a second bearing hole provided on the rear end side in the rotation axis direction of the intermediate hole are formed coaxially,
The hole diameter of the first bearing hole is larger than the outer diameter of the shaft part and the knurled part and smaller than the outer diameter of the head part, and the hole diameter of the second bearing hole is substantially the same as the hole diameter of the first shaft hole. The hole diameter of the intermediate hole is larger than the hole diameters of the first bearing hole and the second bearing hole, and the shaft portion of the nail member is inserted into the bearing portion. Although it can contact the peripheral surface and the inner peripheral surface of the second bearing hole, it cannot contact the inner peripheral surface of the intermediate hole.

  According to the present invention, it is possible to realize a stable rotational motion of a windmill accessory.

It is a front view of the pachinko game machine provided with the windmill concerning this embodiment. It is a rear view of a pachinko gaming machine. It is a sectional side view which shows the state which attached the windmill concerning 1st Embodiment to the game board. It is the perspective view which looked at the windmill concerning a 1st embodiment from the front side. It is the perspective view which looked at the windmill concerning a 1st embodiment from the back side. It is a side view of the windmill concerning a 1st embodiment. It is sectional drawing shown along arrow VII-VII in FIG. It is a front view of the disk member in the windmill concerning a 1st embodiment. It is a rear view of the disk member in the windmill concerning a 1st embodiment. It is a side view of the disk member in the windmill concerning a 1st embodiment. It is sectional drawing shown along XI-XI in FIG. It is a perspective view of the blade member in the windmill concerning a 1st embodiment. It is a side view of the blade member in the windmill concerning a 1st embodiment. It is sectional drawing shown along the arrow XIV-XIV in FIG. It is a side view of the windmill nail for pivotally supporting a windmill. It is the graph which compared the rotational characteristic of the windmill which concerns on 1st Embodiment, and the conventional gold windmill. It is a sectional side view which shows the state which attached the windmill concerning 2nd Embodiment to the game board. It is the perspective view which looked at the windmill concerning 2nd Embodiment from the front side. It is the perspective view which looked at the windmill which concerns on 2nd Embodiment from the rear surface side. It is a side view of the windmill which concerns on 2nd Embodiment. It is sectional drawing shown along arrow XXI-XXI in FIG. It is a schematic diagram which shows the state which united the common figure operation gate and the 2nd special figure start port. It is a front view which shows the modification of a game board.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

[Overall configuration of pachinko machines]
As a representative example of the gaming machine according to the present invention, a front view and a rear view of a pachinko gaming machine PM are shown in FIGS. 1 and 2, and first, referring to this figure, the overall configuration of the pachinko gaming machine PM An outline will be described.

First, the basic structure of the front side of the pachinko gaming machine PM will be described with reference to FIG. As shown in FIG. 1, the pachinko gaming machine PM is configured with a rectangular frame size adapted to the front of the opening of the outer frame 1 which forms a vertically fixed holding frame configured in an outer rectangular frame size, and can be opened and closed. The front frame 2 that forms a frame is attached to the front left side edge portion of the front left and right hinge mechanism 3 so that it can be opened and closed sideways and detachable, and is called a double lock provided on the front right side edge portion. Device 4
Is always held in a closed state engaged and connected to the outer frame 1.

On the front frame 2, a rectangular glass frame 5 fitted to the upper front area of the front frame 2 is assembled so as to be opened and closed laterally and detachable using the upper and lower hinge mechanisms 3, and using the locking device 4 It is always kept in a closed state covering the front surface of the front frame 2. In the front frame 2, the game board 20 is detachably set and held, and the game area PA in front of the game board 20 is faced through the double-layer glass of the glass frame 5 that is always held closed. Yes.

On the front side of the glass frame 5, there are provided an effect lamp 10 that emits light according to the game development status and a speaker 11 that generates sound effects according to the game development status. Upper and lower ball trays (upper ball tray 8 and lower ball tray 9) for storing game balls are provided at the lower part of the glass frame 5, and a player can press in the center of the front of the upper ball tray 8 An effect button 13 is provided, and a launching handle 12 for performing a launching operation of the game ball is provided on the front right side of the lower ball tray 9.

The game board 20 is configured based on a substrate 21 formed in a rectangular flat plate shape using a synthetic resin material such as an acrylic resin, a polycarbonate resin, or an ABS resin. Game board 2
On the front surface of 0, an outer rail and an inner rail are fixed in a circular arc shape, and a substantially circular game area PA in which a game ball can roll is defined, and a plurality of game nails (not shown) are formed in the game area PA. And windmill 1
00 (200), the first special figure starting port 61, the second special figure starting port 62, and the ordinary drawing operation gate 6
3. Various display devices such as a first special symbol display device 71, a second special symbol display device 72, and a normal symbol display device 75 are provided in addition to various winning ports such as 3, the big winning port 64. Game area P
A center ornament 22 is disposed in the approximate center of A, and a screen of an effect display device (for example, a liquid crystal panel) 70 is provided so as to be visible through a central opening of the center ornament 22. At the lower end of the game area PA, there is provided an out port 29 through which the game balls that have tumbled down without entering each winning port are discharged to the back side of the game board 20.

The center decoration 22 is installed around the effect display device 70, and has functions such as a flow path of the game ball, protection of the screen of the effect display device 70, and decoration. The center ornament 22 is provided with a movable accessory 24 for performing a production operation according to the game development status.

Next, the basic structure of the back side of the pachinko gaming machine PM will be described with reference to FIG. On the back side of the front frame 2, there is a back set board 30, which has a window that communicates with the front and rear in the center and is based on a base frame that is formed in a rectangular frame shape somewhat smaller than the front frame 2. Via the hinge mechanism 3, it is connected to the back of the front frame 2 so that it can be opened, closed, and detached. A back set cover 30C having a rectangular box shape with an open front is detachably attached to the back set board 30 and is always attached to the front frame 2.
Is arranged so as to cover the back side of the game board 20 attached to the main board (the main control board 41 and the effect control board 42 described later are covered by the back set cover 30C).

In each part of the back set board 30, a storage tank 31 for storing a large number of game balls, a storage tank 3
A tank rail 32 extending from 1 to the right with a gentle downward slope, a ball supply passage portion 33 extending to the right end portion of the tank rail 32 and extending downward, and a game ball guided by the ball supply passage portion 33 is paid out. A ball dispensing unit 34, a prize ball passage 35 for guiding the game balls dispensed from the prize ball dispensing unit 34 to the upper ball tray 6, and the like are provided.

On the back side of the game board 10, a main control board (which controls the operation of the pachinko gaming machine PM in an integrated manner)
A main control board unit) 41 and an effect control board (effect control board unit) 42 for controlling the overall effects such as image display, effect lighting, and sound effects according to game development are attached.
On the other hand, on the back side of the back set board 30, a payout control board (payout control board unit) 43 that performs control related to the launching and payout of game balls, and various control boards, A power supply board (power supply board unit) 44 for supplying power to the electronic components is attached. In order to prevent unauthorized modification, these control boards are respectively arranged at predetermined positions on the back of the game board 20 or the back set board 30 in an assembled state accommodated in a transparent resin board case having a caulking structure and a sealing structure. Established. These control boards and electrical / electronic components of each part of the pachinko gaming machine PM are connected by a harness (connector cable) so that the pachinko gaming machine PM can be operated.

The pachinko gaming machine PM is used for a game in which the outer frame 1 is fixedly installed on the gaming island (installation frame base) of the gaming facility, the front frame 2, the glass frame 5 and the like are closed and locked, and the upper base plate 8 The game is started by storing the game ball and rotating the launch handle 12. When the firing handle 12 is turned, the game balls stored in the upper ball tray 8 are sent to the launching mechanism one by one by the ball feeding mechanism disposed on the back side of the glass frame 5, and the launching mechanism 12 After being launched into the game area PA, a pachinko game is developed thereafter.

The game balls launched into the game area PA collide with game nails or windmills provided on the front side of the game board 20 and roll down while changing the fall path. When a game ball rolling down in the game area PA enters a winning opening such as the first special figure starting port 61, the second special figure starting port 62, the ordinary drawing operation gate 63, the big winning port 64, etc., the winning is made. A prize ball corresponding to the type of mouth is paid out to the upper ball tray 8 or the lower ball tray 9 by the prize ball payout unit 33. When a game ball enters the special figure starting port 61, 62,
The special symbols are variably displayed on the special symbol display devices 71 and 72, and the decorative symbols are variably displayed on the effect display device 70. The variation display of the special symbol and the decorative symbol is stopped after the lapse of the variation time previously determined by the lottery. When the special symbol after the stop is a symbol indicating a jackpot, a display mode in which the three symbols coincide on the effect display device 70 is taken.
When the symbol stops at the jackpot symbol, a special game that is more advantageous to the player than the normal game is executed. The special game is a game in which the opening / closing operation of the special prize opening 64 is continuously continued a plurality of times, and is constituted by a plurality of unit games (rounds) with one opening / closing as a unit. Then, the special game ends when the set round number (for example, 15 rounds or 2 rounds) of the unit game is consumed.

[Configuration of wind turbine (I)]
Next, the structure of the windmill 100 which concerns on 1st Embodiment is demonstrated, referring FIGS. 3-15. 3 is a side sectional view showing a state in which the windmill 100 is attached to the game board 20, FIG. 4 is a perspective view of the windmill 100 viewed from the front side, and FIG. 5 is a perspective view of the windmill 100 viewed from the rear side. 6 is a side view of the windmill 100, FIG. 7 is a cross-sectional view taken along arrows VII-VII in FIG. 6, FIG. 8 is a front view of the disk member 110 in the windmill 100, and FIG. 10 is a side view of the disk member 110, FIG. 11 is a sectional view taken along line XI-XI in FIG. 10, FIG. 12 is a perspective view of the blade member 120 in the windmill 100, FIG. 13 is a side view of the blade member 120, and FIG. FIG. 15 is a cross-sectional view taken along arrows XIV-XIV in FIG. 13, and FIG. 15 is a side view of a windmill nail 90 for pivotally supporting the windmill 100. In the following description, for convenience of explanation, the vertical and horizontal directions are defined with reference to the state of FIG. 4 as directions in the state of attachment to the pachinko gaming machine PM. The directions of the arrows shown in FIG.

The windmill 100 is pivotally supported in a plane substantially parallel to the board surface around a windmill nail 90 planted on the front side of the game board 20, and the fall of the game ball rolling and falling in the game area PA It changes the route. Here, in this embodiment, as described above, the resin game board 20 is made.
Therefore, a nail in which a spiral knurled portion 92 is formed is applied as the windmill nail 90 to be implanted in the game board 20 in order to increase the holding force with respect to the game board 20. The windmill nail 90 may be the same as or different from the above-described game nail (not shown) as the obstacle nail.

The windmill nail 90 is formed using, for example, a copper alloy (brass) or the like, and as shown in FIG. 15, a long shaft portion 91 extending in the axial direction and a spiral formed on one end side of the shaft portion 91. The knurl part 92 of a shape, the conical sharp part 93 which makes | forms the front-end | tip part of the said nail, and the large diameter head 94 formed in the base end side of the axial part 91 are comprised. The knurled portion 92 is formed by, for example, rolling or header processing, and has a plurality of spiral protrusions 92a formed at predetermined intervals around the axis. The outer diameter of the knurled portion 92 (the maximum diameter of the spiral protrusion 92 a) is formed to be slightly larger than the outer diameter of the shaft portion 91. The windmill nail 90 is fixed by being driven into a lower hole 21a drilled at a predetermined position of the game board 20 (attachment position of the windmill 100). The windmill nail 90 may be disposed perpendicular to the board surface of the game board 20 or may be disposed in a state inclined by a predetermined angle.

The windmill 100 includes a disk member 110 having a circular shape when viewed from the front, and a blade member 120 provided coaxially at the rear end of the disk member 110. The disk member 110 and the blade member 120 are integrated. A shaft hole 101 extending in the front-rear direction is formed so as to penetrate therethrough.
The windmill nail 90 is inserted into the windmill 100 so that the entire windmill 100 can rotate around the windmill nail 90.

The disk member 110 has a disk shape that is concave toward the front surface side using a transparent resin material such as polycarbonate resin, for example, and a game ball that collides with the blade member 120 through the disk member 110 having translucency. A board surface decoration of the game board 20 is formed so as to be visible. The disk member 110 is formed with three engagement holes 111 penetrating in the front-rear direction at equal intervals (120-degree intervals) in the circumferential direction. Three fitting recesses 112 are formed penetrating back and forth at equal intervals (120 degree intervals) in the circumferential direction. Also,
On the rear surface side of the disk member 110, projection pieces 113 are provided which are located at both ends in the circumferential direction of the respective engagement holes 111 and project rearward. Further, the disk member 110 is formed with a first bearing hole 114 that penetrates along the central axis X serving as a rotation center and forms a part of the shaft hole 101.
The shaft part 91, the knurled part 92 and the sharp part 93 can be inserted.

The blade member 120 includes a cylindrical shaft cylinder portion 121 extending in the central axis X direction, and the shaft cylinder portion 121.
And three plate-like blades 125 extending radially from the outer periphery of the outer periphery, and has a substantially propeller shape as a whole. The blade member 120 is formed using a resin material such as POM or polyacetal (Duracon [registered trademark]).

At the front end of the shaft cylinder portion 121, three engagement projections 12 at equal intervals (120 degree intervals) in the circumferential direction are provided.
2 protrudes forward. The engagement protrusion 122 can be elastically deformed in the plate thickness direction (radial direction), and a substantially hook-shaped locking claw 122a that acts as a stopper is provided at the tip. In addition, the axial tube portion 121 is formed with a tapered hole 123 whose diameter is reduced from the front to the rear along the central axis X that is the rotation center, and is coaxially connected to the tapered hole 123 in the front-rear direction. The 2nd bearing hole 124 extended is formed, and these present the shape of the stepped hole which penetrates back and forth as a whole. These tapered holes 123 and second bearing holes 12
4 is a part of the shaft hole 101 of the windmill 100, and includes a shaft portion 91 and a knurled portion 92 of the windmill nail 90.
And the sharp part 93 can be inserted.

The blades 125 are formed at equal intervals (120-degree intervals) in the circumferential direction, and adjacent blades 1
A space that can receive one game ball is defined between the 25. On the front side of the blade 125, a rib-like fitting convex portion 126 that can be fitted to the fitting concave portion 112 is formed at a position aligned with the fitting concave portion 112 of the disk member 110. In addition, the blade 125 and the engagement protrusion 12
2, a slit 127 into which the protruding piece 113 is inserted is formed by cutting along the central axis X direction at a position aligned with the protruding piece 113 of the disk member 110. In addition, feather 125
Is formed in a shape corresponding to the rear end surface of the disk member 110 (the rear end surface on the inner peripheral side from the fitting concave portion 112), The rear end surface of the disk member 110 is supported in close contact with the front end surface of the blade member 120.

Next, the dimensional relationship between the windmill nail 90 and the shaft hole 101 of the windmill 100 will be described. First, regarding the dimensions of each part of the windmill nail 90, as shown in FIG. 15, the outer diameter d1 of the shaft part 91 is 1.85.
[Mm], outer diameter d2 of knurled portion 92 = 2.07 [mm], outer diameter d3 of sharpened portion 93 = 1.8
5 [mm] and the outer diameter d4 of the head 94 = 4.3 [mm]. On the other hand, the shaft hole 101 of the windmill 100
As shown in FIG. 11 and FIG. 14, the diameter of each part of the first bearing hole 114 has a hole diameter D1.
= 2.15 [mm], hole diameter D2 of the tapered hole 123 = 2.80 to 3.11 [mm], and hole diameter D3 of the second bearing hole 124 = 2.15 [mm].

The hole diameter D1 of the first bearing hole 124 is, in relation to the windmill nail 90, the shaft portion 91 and the knurled portion 9.
2 and the sharp part 93, and the outer diameter of the head part 94 is larger than the outer diameters d1, d2, d3 of the shaft part 91, the knurled part 92 and the sharp part 93 so that the head part 94 cannot be inserted. It is smaller than d4 (d1, d1, d3 <D1 <d4). The diameter D2 of the taper hole 123 is the windmill nail 90.
The shaft portion 9, the knurled portion 92, and the sharpened portion 93 can be inserted through the shaft portion 9.
1, larger than the outer diameters d1, d2, d3 of the knurled portion 92 and the sharpened portion 93 (d1, d1
, D3 <D2). The hole diameter D3 of the second bearing hole 124 is, in relation to the windmill nail 90, the shaft portion 91,
It is larger than the outer diameters d1, d2, and d3 of the shaft portion 91, the knurled portion 92, and the sharp portion 93 so that the knurled portion 92 and the sharp portion 93 can be inserted (d1, d1, d3 <D3). When the windmill nail 90 is inserted into the shaft hole 101 of the windmill 100, the shaft portion 91 of the windmill nail 90 is the first.
The first bearing hole 114 and the second bearing hole 124 are equivalent so that they can contact the inner peripheral surfaces of the bearing hole 114 and the second bearing hole 124 and cannot contact the inner peripheral surface of the tapered hole 123. The diameter D2 of the tapered hole 123 is the diameter D1, D of the first bearing hole 114 and the second bearing hole 124.
Greater than 3 (D1 = D3 <D2). As described above, the shaft hole 1 of the windmill nail 90 and the windmill 100 is used.
In the dimensional relationship with 01, the relational expression “d1 <d2 = d3 <D1 = D3 <D2 <d4” is established.

By satisfying such a relational expression, the shaft portion 91 of the windmill nail 90 is connected to the shaft hole 101 of the windmill 100.
When the windmill nail 90 is tilted with respect to the game board 20 and the mounting angle of the windmill 100 is changed, the shaft portion 91 of the windmill nail 90 remains in the inner periphery of the first bearing hole 114. The surface and the inner peripheral surface of the second bearing hole 124 can be contacted, but the taper hole 123 cannot be contacted. That is, for example, the head portion 94 side (left side in FIG. 3) of the shaft portion 91 is in contact with the upper and lower ends of the inner peripheral surface of the first bearing hole 114 and the knurled portion 92 side of the shaft portion 91 (right side in FIG. 3). )
Is in a state where it is in contact with the upper and lower other ends of the inner peripheral surface of the second bearing hole 124, no part of the outer peripheral surface of the shaft portion 91 can contact the inner peripheral surface of the tapered hole 123. It has become. Therefore,
No matter how the inclination of the windmill nail 90 with respect to the game board 20 is adjusted, the first bearing hole 114 and the second
It is possible to configure a bearing structure that rotates and slides in contact with the shaft portion 91 of the wind turbine nail 90 only at two locations with the bearing hole 124.

Next, a procedure for assembling the wind turbine 100 configured as described above will be described. First, in a posture in which the disk member 110 and the blade member 120 are aligned in the circumferential direction, the blade member 1
The front end portion of 20 is brought close to the rear end portion of the disk member 110. At this time, the engaging claw 122a of the engaging protrusion 122 of the blade member 120 abuts against the inner wall surface of the engaging hole 111 of the disk member 110, and the engaging protrusion 122 is elastically deformed radially inward to engage the engaging hole 111. Inserted into. When the engaging claw 122a gets over the inner wall surface of the engaging hole 111, the engaging protrusion 122 returns to its original free posture by its own restoring elasticity and engages with the engaging hole 111, so that the disk member 11
0 and the blade member 120 are integrated, and the first bearing hole 114, the taper hole 123, and the second bearing hole 1 are integrated.
24 communicates with each other (the internal spaces of each other are continuous). At the same time, the blade member 12
Since the three fitting protrusions 126 of 0 are fitted into the three fitting recesses 112 of the disk member 110, the disk member 110 and the blade member 120 are coaxially arranged so that their axes coincide with each other. To do. Thus, the windmill 100 is assembled by integrally connecting the rotating member 110 and the blade member 120, and the windmill 100 can be attached to and detached from the front side of the game board 20 as a single solid.
Then, in a state where the windmill nail 90 is inserted through the shaft hole 101 of the windmill 100 from the front, the tip portions (the sharp portion 93 and the knurled portion 92) of the windmill nail 90 are driven into the prepared hole 21a at a predetermined position of the game board 20. The windmill 100 can freely rotate about the shaft portion 91 of the windmill nail 90.

As described above, according to the windmill 100 according to the first embodiment, when the windmill nail 90 having the knurled portion 92 is used as the rotation shaft by using the resin game board 20, the shaft hole 101 of the windmill 100 is used.
The first bearing hole 114 and the second bearing hole 124 that can come into contact with the windmill nail 90 are formed at both ends in the central axis X direction of the windmill 100 even if the clearance between the windmill nail 90 and the shaft portion 91 of the windmill nail 90 is increased. A tapered hole 123 that cannot contact the windmill nail 90 is formed between the bearing holes 114 and 124, and the windmill nail 90 is slidably contacted with the windmill nail 90 only at two locations of the first bearing hole 114 and the second bearing hole 124. With the bearing structure, even when the inclination of the windmill nail 90 driven into the game board 20 is adjusted and the mounting angle of the windmill 100 with respect to the board surface is changed, the windmill 10 with respect to the windmill nail 90 is changed.
Since the bearing position of 0 is always constant, it is possible to maintain a smooth and stable rotational motion over a long period of time.

Further, in the windmill according to the present embodiment, the windmill 100 has a two-piece structure of the disk member 110 and the blade member 120, so that the disk member 110 is decorated with a decoration specific to the disk surface (product number specific). However, if only the disk member 110 is replaced, the blade member 120 can be used in common. The disk member 110 is preferably formed using a transparent resin material. According to this configuration, it is possible to visually recognize how the game ball collides with the blade member 120 and the fall path of the game ball is changed. it can. The blade member 120 is preferably formed using Duracon (registered trademark), which is a resin material having excellent fatigue resistance and wear resistance and a low friction coefficient. According to this configuration, the windmill 100 and the windmill nail 90 are formed. It is possible to ensure excellent rotational characteristics by reducing the frictional resistance between the resin and the resin, and to prevent generation of resin powder due to wear when the rotational motion is repeated.

Further, in the windmill 100 according to the present embodiment, the disk member 110 and the blade member 120 can be integrally assembled by the engagement structure of the engagement protrusion 122 and the engagement hole 111, thereby The disassembly work can be easily performed.

When assembling the disc member 110 and the blade member 120 by providing an uneven fitting structure in which the fitting concave portion 112 of the disk member 110 and the fitting convex portion 126 of the blade member 120 are fitted in the central axis X direction, Inclination of disk member 110 with respect to blade member 120 (inclination in the direction of arrow Y shown in FIG. 6)
In addition, the disk member 110 and the blade member 120 are not displaced in the circumferential direction and the radial direction, and the disk member 110 and the blade member 120 can be easily assembled in an accurate positional relationship. Further, since the disk member 110 and the blade member 120 are arranged concentrically with each other, the runout of the windmill 100 with respect to the windmill nail 90 is suppressed, and the rotational characteristics of the windmill 100 are improved.

Here, FIG. 16 shows the test results comparing the rotational characteristics of the windmill 100 according to this embodiment and the conventional gold windmill. In this graph, the horizontal axis represents the number of rotations, and the vertical axis represents the frequency of occurrence of the number of rotations. A gold windmill is a windmill consisting of a metal disk member and a synthetic resin blade member, and the moment of inertia with respect to the center of rotation is larger than that of a windmill formed only of a synthetic resin material. There is an advantage that if the rotation starts, the rotation is easily sustained. The windmill 100 and the gold windmill have substantially the same outer dimensions. In this test, when the game ball collides, the number of rotations from when the windmill starts to stop until it stops is 1 /
Measurements are made 500 times in units of 4 revolutions. As can be seen from the test results, the wind turbine 100 according to the present embodiment is considered to have rotational characteristics equivalent to those of the gold wind turbine.

[Configuration of wind turbine (II)]
Next, the structure of the windmill 200 which concerns on 2nd Embodiment is demonstrated, referring FIGS. 17-23. Here, FIG. 17 is a side sectional view showing a state in which the windmill 200 is attached to the game board 20, FIG. 18 is a perspective view of the windmill 200 viewed from the front side, and FIG. 19 is a perspective view of the windmill 200 viewed from the rear side. 20 is a side view of the wind turbine 200, and FIG. 21 is a sectional view taken along arrows XXI-XXI in FIG. In the following description, for convenience of explanation, the vertical and horizontal directions are defined with reference to the state of FIG. 18 as directions in the state of attachment to the pachinko gaming machine PM. The directions of the arrows shown in FIG.

The windmill 200 is rotatably supported around a windmill nail 90 planted on the front side of the game board 20 in a plane substantially parallel to the board surface, and the fall of the game ball rolling and falling in the game area PA It changes the route. Here, in this embodiment, as described above, the resin game board 20 is made.
Therefore, a nail in which a spiral knurled portion 92 is formed is applied as the windmill nail 90 to be implanted in the game board 20 in order to increase the holding force with respect to the game board 20.

The windmill nail 90 is formed using, for example, a copper alloy (brass) or the like, and as shown in FIG. 15, a long shaft portion 91 extending in the axial direction and a spiral formed on one end side of the shaft portion 91. The knurl part 92 of a shape, the conical sharp part 93 which makes | forms the front-end | tip part of the said nail, and the large diameter head 94 formed in the base end side of the axial part 91 are comprised. The knurled portion 92 is formed by, for example, rolling or header processing, and has a plurality of spiral protrusions 92a formed at predetermined intervals around the axis. The outer diameter of the knurled portion 92 (the maximum diameter of the spiral protrusion 92 a) is formed to be slightly larger than the outer diameter of the shaft portion 91. The windmill nail 90 is fixed by being driven into a lower hole 21a drilled at a predetermined position of the game board 20 (attachment position of the windmill 200). The windmill nail 90 may be disposed perpendicular to the board surface of the game board 20 or may be disposed in a state inclined by a predetermined angle.

The windmill 200 includes a disk member 210 having a circular shape when viewed from the front, and a blade member 220 provided coaxially at the rear end of the disk member 210. The disk member 210 and the blade member 220 are integrated. A shaft hole 201 extending in the front-rear direction is formed so as to penetrate therethrough.
The windmill nail 90 is inserted into the windmill 200 so that the entire windmill 200 can rotate around the windmill nail 90.

The disc member 210 has a disc shape that is concave toward the front side using a transparent resin material such as polycarbonate resin, for example, and a game ball that collides with the blade member 220 through the translucent disc member 210 A board surface decoration of the game board 20 is formed so as to be visible. The disk member 210 is formed with three engaging holes 211 penetrating in the front-rear direction at equal intervals (120-degree intervals) in the circumferential direction. Three fitting recesses 212 are formed to penetrate in the front-rear direction at equal intervals (120-degree intervals) in the circumferential direction. Also,
On the rear surface side of the disk member 210, projection pieces 213 that are located at both ends in the circumferential direction of the respective engagement holes 211 and project rearward are provided. Further, the disk member 210 is formed with a first opening hole 214 that penetrates along the central axis X serving as a rotation center and forms a part of the shaft hole 201.
The shaft part 91, the knurled part 92 and the sharp part 93 can be inserted.

The blade member 220 includes a cylindrical shaft tube portion 221 extending in the central axis X direction, and the shaft tube portion 221.
And three plate-like blades 225 extending radially from the outer periphery of the outer periphery of the main body, and has a substantially propeller shape as a whole. The blade member 220 is formed using a resin material such as POM or polyacetal (Duracon [registered trademark]).

At the front end of the shaft tube portion 221, three engagement protrusions 22 at equal intervals (120 degree intervals) in the circumferential direction.
2 protrudes forward. The engaging protrusion 222 can be elastically deformed in the plate thickness direction (radial direction), and a substantially hook-shaped locking claw 222a that acts as a stopper is provided at the tip. Further, the shaft tube portion 221 has a bearing hole 2 extending along the central axis X serving as a rotation center.
23 is formed, and the second opening hole 22 extending coaxially with the bearing hole 223 extends.
4 is formed, and these have a stepped hole shape penetrating in the front-rear direction as a whole. The bearing hole 223 and the second opening hole 224 form a part of the shaft hole 201 of the windmill 200 and can be inserted through the shaft portion 91, the knurled portion 92, and the sharpened portion 93 of the windmill nail 90.

The blades 225 are formed at equal intervals (120-degree intervals) in the circumferential direction, and adjacent blades 2
A space that can receive one game ball is defined between the 25. On the front side of the blade 225, a rib-like fitting convex portion 226 that can be fitted with the fitting concave portion 212 is formed at a position aligned with the fitting concave portion 212 of the disk member 210. Further, the blade 225 and the engaging protrusion 22
2, a slit 227 into which the protruding piece 213 is inserted is formed along the central axis X direction at a position aligned with the protruding piece 213 of the disk member 210. In addition, the blade 225
Is formed in a shape corresponding to the rear end surface of the disk member 210 (the rear end surface on the inner peripheral side from the fitting concave portion 212), The rear end surface of the disk member 210 is supported in close contact with the front end surface of the blade member 220.

Next, the dimensional relationship between the windmill nail 90 and the shaft hole 201 of the windmill 200 will be described. First, regarding the dimensions of each part of the windmill nail 90, as shown in FIG. 15, the outer diameter d1 of the shaft part 91 is 1.85.
[Mm], outer diameter d2 of knurled portion 92 = 2.07 [mm], outer diameter d3 of sharpened portion 93 = 1.8
5 [mm] and the outer diameter d4 of the head 94 = 4.3 [mm]. On the other hand, the shaft hole 101 of the windmill 200
As shown in FIG. 21, the hole diameter D1 of the first open hole 214 is 3.10.
[Mm], hole diameter D2 of the bearing hole 223 = 2.15 [mm], hole diameter D3 of the second open hole 224 = 3.
10 [mm].

The diameter D1 of the first opening hole 214 is related to the windmill nail 90 in terms of the shaft portion 91 and the knurled portion 9.
2 and the sharp part 93, and the outer diameter of the head part 94 is larger than the outer diameters d1, d2, d3 of the shaft part 91, the knurled part 92 and the sharp part 93 so that the head part 94 cannot be inserted. It is smaller than d4 (d1, d1, d3 <D1 <d4). The diameter D2 of the bearing hole 223 is, in relation to the windmill nail 90, the shaft portion 91 so that the shaft portion 91, the knurled portion 92, and the sharpened portion 93 can be inserted.
Larger than the outer diameters d1, d2, d3 of the knurled portion 92 and the sharpened portion 93 (d1, d1,
d3 <D2). The hole diameter D3 of the second opening 224 is, in relation to the windmill nail 90, the outer diameter d1 of the shaft portion 91, the knurled portion 92, and the sharp portion 93 so that the shaft portion 91, the knurled portion 92, and the sharp portion 93 can be inserted. , D2, and d3 (d1, d1, d3 <D3). When the windmill nail 90 is inserted into the shaft hole 201 of the windmill 200, the shaft portion 91 of the windmill nail 90 is in the bearing hole 2.
The diameter D1 of the first opening hole 214 and the second opening hole 224 is such that it can contact the inner peripheral surface of the first opening hole 23 and cannot contact the inner peripheral surfaces of the first opening hole 214 and the second opening hole 224. , D3 is larger than the hole diameter D2 of the bearing hole 223 (D2 <D1 = D3). As described above, in the dimensional relationship between the windmill nail 90 and the shaft hole 201 of the windmill 200, “d1 <d2 = d3 <D2 <D1 = D3 <
d4 "is established.

By satisfying such a relational expression, the shaft portion 91 of the windmill nail 90 is connected to the shaft hole 201 of the windmill 200.
When the windmill nail 90 is attached to the game board 20 and the inclination angle of the windmill nail 90 is adjusted to change the mounting angle of the windmill 200, the shaft portion 91 of the windmill nail 90 is positioned on the inner peripheral surface of the bearing hole 223. Can contact, but cannot contact the inner peripheral surface of the first open hole 214 and the inner peripheral surface of the second open hole 224. That is, for example, the head 94 side (left side in FIG. 17) of the shaft portion 91 is the bearing hole 223.
Even when the knurled portion 92 side (right side in FIG. 17) of the shaft portion 91 is in contact with the upper and lower other end sides of the bearing hole 223, while contacting the upper and lower one end sides of the inner peripheral surface of Any part of the outer peripheral surface of the shaft portion 91 cannot contact the inner peripheral surface of the first open hole 214 and the inner peripheral surface of the second open hole 224. Therefore, no matter how the inclination of the windmill nail 90 with respect to the game board 20 is adjusted, it is possible to configure a bearing structure that makes rotational contact with the shaft portion 91 of the windmill nail 90 only at the bearing hole 223.

Next, a procedure for assembling the wind turbine 100 configured as described above will be described. First, in a posture in which the disk member 210 and the blade member 220 are aligned in the circumferential direction, the blade member 2
The front end portion of 20 is brought close to the rear end portion of the disk member 210. At this time, the engaging claw 222a of the engaging protrusion 222 of the blade member 220 abuts against the inner wall surface of the engaging hole 211 of the disk member 210, and the engaging protrusion 222 is elastically deformed radially inward to engage the engaging hole 211. Inserted into. Then, when the engaging claw 222a gets over the inner wall surface of the engaging hole 211, the engaging projection 222 returns to its original free posture by its own restoring elasticity and engages with the engaging hole 211. 21
0 and the blade member 220 are integrated, and the first opening hole 214, the bearing hole 223, and the second opening hole 22 are integrated.
4 communicates with each other (the internal spaces of each other are continuous). At the same time, the blade member 220
The three fitting projections 226 are fitted into the three fitting recesses 212 of the disk member 210, so that the disk member 210 and the blade member 220 are coaxially arranged so that their axes coincide with each other. . Thus, the windmill 200 is assembled by integrally connecting the rotating member 210 and the blade member 220, and the windmill 200 can be attached to and detached from the front side of the game board 20 as a single solid. Then, with the windmill nail 90 inserted through the shaft hole 201 of the windmill 200 from the front, the tip end portions (the sharp portion 93 and the knurled portion 92) of the windmill nail 90 are driven into the prepared hole 21a at a predetermined position of the game board 20. The windmill 200 can freely rotate about the shaft portion 91 of the windmill nail 90.

As described above, according to the windmill 200 according to the second embodiment, when the windmill nail 90 having the knurled portion 92 is used as the rotation shaft by using the resin game board 20, the shaft hole 201 of the windmill 200 is used.
Even if the clearance between the windmill nail 90 and the shaft portion 91 of the windmill nail 90 is increased, bearing holes 223 that can contact the windmill nail 90 are formed at both ends of the windmill 200 in the central axis X direction.
The first open hole 214 and the second open hole 224 that cannot contact the windmill nail 90 are formed at the front and rear ends of the windshield 23, and the bearing structure is configured so as to be in sliding contact with the windmill nail 90 only at the center bearing hole 223. Even when the inclination of the windmill nail 90 driven into the board 20 is adjusted and the mounting angle of the windmill 200 with respect to the board surface is changed, the bearing position of the windmill 200 with respect to the windmill nail 90 is always constant. Can be maintained over a long period of time.

Further, in the windmill according to the present embodiment, the windmill 200 has a two-piece structure of the disk member 210 and the blade member 220, so that a decoration specific to the board surface (specific to the product number) is applied to the disk member 210. However, if only the disk member 210 is replaced, the blade member 220 can be used in common. The disk member 210 is preferably formed using a transparent resin material. According to this configuration, it is possible to visually recognize how the game ball collides with the blade member 220 and the fall path of the game ball is changed. it can. The blade member 220 is preferably formed using Duracon (registered trademark), which is a resin material having excellent fatigue resistance and wear resistance and having a low friction coefficient. According to this configuration, the windmill 200 and the windmill nail 90 are formed. It is possible to ensure excellent rotational characteristics by reducing the frictional resistance between the resin and the resin, and to prevent generation of resin powder due to wear when the rotational motion is repeated.

Further, in the windmill 200 according to the present embodiment, the disk member 210 and the blade member 220 can be integrally assembled by the engagement structure of the engagement protrusion 222 and the engagement hole 211, so that the assembly / The disassembly work can be easily performed.

When assembling the disk member 210 and the blade member 220 by providing a concave-convex fitting structure in which the fitting concave portion 212 of the disk member 210 and the fitting convex portion 226 of the blade member 220 are fitted in the central axis X direction, The inclination of the disk member 210 with respect to the blade member 220 (inclination in the direction of arrow Y shown in FIG. 20) is suppressed, and the disk member 210 and the blade member 220 are not displaced in the circumferential direction and the radial direction. And the blade member 220 can be easily assembled in an accurate positional relationship. In addition, since the disk member 210 and the blade member 220 are arranged concentrically with each other, the runout of the windmill 200 with respect to the windmill nail 90 is suppressed, and the rotational characteristics of the windmill 200 are improved.

Based on the embodiment described above, a windmill accessory of an aspect illustrating the present invention will be described.

The windmill accessory of the aspect which illustrates this invention (1) is
A ball game in which a game board made of a synthetic resin having a game area formed on the front side is provided, a game ball is launched into the game area, and the game ball is dropped and moved in the game area to perform a predetermined game In the machine
The game ball has a bearing portion through which a predetermined nail member is inserted, and is rotatably provided around the nail member planted on the front side of the game board. When the game ball collides, the game ball falls A windmill role that changes the travel path,
The nail member includes a shaft portion that extends in a central axis direction and serves as a rotation shaft of the windmill accessory, a head portion that has a larger diameter than the shaft portion on the front end side in the central axis direction of the shaft portion, A knurled portion formed on the rear end side in the central axis direction of the shaft portion with a diameter larger than that of the shaft portion and having a spiral protrusion around the central axis and driven into the game board. ,
The bearing portion includes an intermediate hole extending in the rotation axis direction of the windmill accessory, a first bearing hole provided on a front end side of the intermediate hole in the rotation axis direction, and a rear end side of the intermediate hole in the rotation axis direction. Second provided
The bearing hole is formed coaxially,
The hole diameter of the first bearing hole is larger than the outer diameter of the shaft part and the knurled part, and smaller than the outer diameter of the head part,
The hole diameter of the second bearing hole is substantially the same as the hole diameter of the first shaft hole,
The hole diameter of the intermediate hole is larger than the hole diameters of the first bearing hole and the second bearing hole,
In a state where the shaft portion of the nail member is inserted into the bearing portion, the shaft portion can contact the inner peripheral surface of the first bearing hole and the inner peripheral surface of the second bearing hole. It is a windmill thing characterized by not being able to contact the inner peripheral surface of.

The windmill accessory of the aspect which illustrates this invention (2) is
A blade member having a plurality of blades formed around the rotation shaft, and a disk member detachably provided on a front end side of the blade member;
The wind turbine accessory according to the invention (1), wherein the bearing portion is formed to penetrate the disk member and the blade member along the rotation axis direction.

The windmill accessory of the aspect which illustrates this invention (3) is
The blade member has a plurality of engagement protrusions formed at equal intervals around the rotation axis,
The disk member has a plurality of engagement holes that are formed at equal intervals around the rotation axis and engage with the plurality of engagement protrusions,
The windmill according to the invention (2), wherein the disk member and the blade member are integrally assembled by engaging the plurality of engagement protrusions with the plurality of engagement holes. It is an accessory.

The windmill accessory of the aspect which illustrates this invention (4) is
The blade member has a plurality of fitting projections that are formed at equal intervals around the rotation axis and project toward the disk member side, radially outward from the plurality of engagement protrusions,
The disk member has a plurality of fitting recesses that are formed at equal intervals around the rotation axis and are fitted to the plurality of fitting protrusions on a radially outer side than the plurality of engaged holes. It is a windmill accessory as described in said invention (3) characterized by the above-mentioned.

In addition, this invention is not limited to the said embodiment, If it is a range which does not deviate from the summary of this invention, it can improve suitably.

In the above-described embodiment, the configuration in which the number of blades of the windmill is set to 3 is described as an example.
It is not limited to this configuration, and the number of blades may be two or four or more. Moreover, in the above-mentioned embodiment, although the windmill was formed as a two-piece structure of a disk member and a blade member, it is not limited to this configuration, and the disk member and the blade member may be formed as an integrated object. . Furthermore, in the above-described embodiment, the dimensional relationship between the game nail and the windmill is specifically shown, but this is an example, and can be changed as appropriate.

Moreover, although the above-mentioned embodiment demonstrated an example of the game board provided with a windmill, the structure (for example, kind and arrangement | positioning of an accessory etc.) of a game board is not specifically limited. For example, in the above embodiment,
Although the first special figure starting port 61 and the second special figure starting port 62 are arranged in a vertically overlapping position, the present invention is not limited to this configuration, and as shown in FIG. And the second special figure starting port 362 may be arranged at positions where they overlap each other (it may be formed as an integral accessory unit 360). According to this configuration, when the electric accessory of the second special figure starting port 362 is in an open state in which the game ball B is easy to enter, the game ball enters the normal operation gate 363 accordingly. Since the ball becomes easy, it becomes easy to maintain the high base gaming state. Here, the high base gaming state refers to a gaming state in which at least one of a function related to a normal symbol, that is, a normal symbol time-shortening function, a normal symbol probability changing function, and an electric-chu opening time extending function is activated.
In addition, when the electric accessory of the second special figure starting port 362 is closed, it is difficult for the game ball B to enter the normal operation gate 363. It is not necessary to provide nails), and the board space can be used effectively. In addition, when applied to a so-called right-handed machine in which the big prize opening is arranged on the right side of the game area, this accessory unit 360 (the normal operation gate 363 and the second special figure start opening 362 is located above the big prize opening. ) Is preferably arranged.

Further, as shown in FIG. 23, an accessory unit 480 having a substantially S-shaped guiding path 481 for guiding the game ball B to the road nail 482 on the left side of the game board 420 may be arranged. According to this configuration, for example, a game ball B that has escaped by a nail can be guided to the road nail 482 by the guide path 481, and the game ball B discharged from the guide path 481 can be guided to the road nail 48.
2 is guided to the first special figure starting port 461 and the second special figure starting port 462, so that the starting efficiency of the special symbol game can be increased.

In the above-described embodiment, the case where the windmill accessory is applied to the pachinko gaming machine has been described as an example. However, the present invention is not limited to this, and a ball game machine other than the pachinko gaming machine, for example, a slot It can be applied to other game machines such as machines, arrange ball machines, sparrow ball game machines, enclosed game machines (game machines in which a predetermined number of game balls are enclosed in the machine) and similar effects. Can be obtained.

PM Pachinko machine (bullet ball machine)
PA game area 1 outer frame 2 front frame 5 glass frame 20 game board 90 windmill nail (nail member)
91 Shaft portion 92 Knurled portion 93 Pointed portion 94 Head portion 100 Windmill (windmill accessory: first embodiment)
101 Shaft hole (bearing part)
110 disk member 111 engagement hole 112 fitting recess 114 first bearing hole 120 blade member 122 engagement protrusion 123 taper hole (intermediate hole)
124 Second bearing hole 125 Blade 126 Fitting projection 200 Windmill (second embodiment)
201 Shaft hole 210 Disk member 211 Engaging hole 212 Fitting recess 214 First opening hole 220 Blade member 222 Engaging projection 223 Bearing hole 224 Second opening hole 225 Blade 226 Fitting protrusion

Claims (1)

A ball game in which a game board made of a synthetic resin having a game area formed on the front side is provided, a game ball is launched into the game area, and the game ball is dropped and moved in the game area to perform a predetermined game In the machine
The game ball has a bearing portion through which a predetermined nail member is inserted, and is rotatably provided around the nail member planted on the front side of the game board. When the game ball collides, the game ball falls A windmill role that changes the travel path,
The nail member includes a shaft portion that extends in a central axis direction and serves as a rotation shaft of the windmill accessory, a head portion that has a larger diameter than the shaft portion on the front end side in the central axis direction of the shaft portion, A knurled portion formed on the rear end side in the central axis direction of the shaft portion with a diameter larger than that of the shaft portion and having a spiral protrusion around the central axis and driven into the game board. ,
The bearing portion includes an intermediate hole extending in the rotation axis direction of the windmill accessory, a first bearing hole provided on a front end side of the intermediate hole in the rotation axis direction, and a rear end side of the intermediate hole in the rotation axis direction. Second provided
The bearing hole is formed coaxially,
The hole diameter of the first bearing hole is larger than the outer diameter of the shaft part and the knurled part, and smaller than the outer diameter of the head part,
The hole diameter of the second bearing hole is substantially the same as the hole diameter of the first shaft hole,
The hole diameter of the intermediate hole is larger than the hole diameters of the first bearing hole and the second bearing hole,
In a state where the shaft portion of the nail member is inserted into the bearing portion, the shaft portion can contact the inner peripheral surface of the first bearing hole and the inner peripheral surface of the second bearing hole. A windmill accessory characterized in that it cannot contact the inner peripheral surface of the wind turbine.

Images