JP2012152278A - Game ball shooting rail device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a game ball shooting rail device having a stable performance.SOLUTION: The shooting rail device has a shooting table including a holding portion 34 for holding a game ball 23 at a shot position, and a flat rail body 35 with which at least the lower end of the game ball 23 stopping at the holding portion 34 makes contact and on which the game ball runs when shot. The holding portion 34 is formed from an upright plate portion 36 standing from the flat rail body 35. The shooting table 31 is fixed to the shooting device 1 as a whole. The upright plate portion 36 has a hole 39 for entrance of the head of a hammer 7 to hit the game ball 23, and the hole 39 has an edge provided with a pair of holding pieces 40 abutting on the game ball 23 to hold the game ball 23 at the shot position, on a side far from the flat rail body 35.

Description

  The present invention relates to an improvement in a game ball launch rail device when a pachinko ball (hereinafter referred to as a game ball) in a pachinko machine or the like is launched toward a game board.

  Conventionally, in order to release a game ball through a launch passage into a game ball area of a game board in a pachinko machine, the game ball is stopped at an emission position (also referred to as a launch position) of the launch rail. And a game ball launching device (launching mechanism) for hitting the ball with a hammer (striking portion). As a drive source of the launching device (launching mechanism), there are a mechanical configuration such as a spring, a direct acting electromagnetic solenoid, and a rotary electromagnetic solenoid provided with a striking portion at the tip of a plunger.

  The conventional launch rail has a V-shaped, M-shaped or H-shaped cross section viewed from a direction orthogonal to the running direction of the game ball. It is normal that a holding member for contacting (holding) the game ball at an injection position is provided integrally or separately as abutting at only one place on the upper side (Patent Documents 1 to 3). 6).

JP 61-141383 A Japanese Patent Application Laid-Open No. 08-322987 JP-A-11-299969 JP-A-11-57129 JP 2004-41498 A JP 2008-132149 A

  However, as in Patent Documents 1 to 6, as a result of the cross section of the launch rail being formed in a V shape, an M shape, or an H shape, the contact position with the game ball on the launch rail is the position of the game ball. Since it becomes the left and right sides of the outer peripheral surface, the direction of hitting the game ball by the hammer (the vector direction in which the hitting force passes through the center line of the game ball) due to an error when the launch rail and the hammer are assembled is V-shaped, If the surface roughness of the launch rail is slightly different across the center line or slightly different along the launch direction, even if it is almost coincident with the M-shaped or H-shaped symmetrical center line, The frictional resistance of the contact points with the left and right firing rails becomes staggered, and the traveling direction of the game ball with respect to the firing rail is shifted or meanders in the width direction of the firing rail. As a result, the probability that the running direction of the game ball is greatly shifted in the width direction of the launch path on the launch path arranged between the board surface of the game board and the glass plate on the front surface thereof increases. The problem of collision with the board of the game board occurred.

  The present invention has been made in order to solve the above-described conventional problems, and stable launching (running) while the accuracy and assembly accuracy of each part of the firing rail and launching device (launching mechanism) can be moderated. It is an object of the present invention to provide a game ball launch rail device having performance.

  In order to achieve the above-mentioned object, the invention according to claim 1 is a launching rail device for a game ball in which a game ball travels by being hit by the launching device, and the launching base in the launching rail device is the game ball. And a flat plate-like rail body that is in contact with a lower end of the game ball stopped at the holding portion and travels at the time of launching, and the holding portion is It consists of an upright plate portion standing up from a flat plate-like rail body, and the upright plate portion has a hole through which the hammer head in the launching device can hit the game ball, and the flat portion of the edge portion of the hole On the side far from the plate-like rail body, a pair of holding pieces that come into contact with the game ball is provided so as to hold the game ball at the injection position.

  According to a second aspect of the present invention, in the game ball launching rail device according to the first aspect, the launch pad is fixed to the launching device.

  According to a third aspect of the present invention, in the game ball launching rail device according to the first or second aspect, the launch pad is made of a metal plate.

  According to a fourth aspect of the present invention, in the game ball launching rail device according to the first or second aspect, the upright plate portion and the substrate of the launch pad are synthetic resin members, and the flat plate The rail-like body is a metal plate fixed to the surface of the substrate.

  According to a fifth aspect of the present invention, in the game ball launching rail device according to any one of the first to fourth aspects, the striking surface of the hammer head of the launcher with respect to the game ball is a travel of the game ball. It is ground to be a surface orthogonal to the direction.

  According to the first aspect of the present invention, only the lowest end point of the game ball is in contact with the surface of the flat plate-like rail body at the launch position of the game ball on the launch pad. Since both the left and right parts are supported by a pair of holding pieces, the game ball can secure a stable position holding of a total of three points (not wobbling from side to side). Even when the game ball is hit with the hammer hitting surface by driving the launcher, only the lowermost point of the game ball is in contact with the surface of the flat plate rail body, so the game ball and the flat plate rail The frictional resistance with the surface of the body is minimized, and there is no variation in the frictional resistance in the width direction of the flat plate rail body. In addition, the game ball can be run from a state in which the game ball is supported in a stable posture by the pair of holding pieces. Accordingly, the game ball travels in a direction that coincides with the travel line (normal direction of the striking surface) by the striking surface. In other words, the running direction of the game ball is the width of the launch rail, like a launch rail having a V-shaped, M-shaped or H-shaped cross section viewed from a direction orthogonal to the running direction of the conventional game ball. Since the phenomenon of shifting in the direction or meandering does not occur, the problem that the game ball collides with the glass plate or the board surface of the game board does not occur.

  According to the second aspect of the present invention, since the launch pad is fixed to the launching device, the effect of minimizing the deviation between the shot position of the game ball on the launch pad and the hitting position by the hammer. Play.

  According to the invention described in claim 3, since the entire launch pad is made of a metal plate, the rigidity can be increased, the frictional resistance between the game ball and the surface of the flat plate-like rail body is reduced, and the wear resistance is also improved. Can be high.

  According to invention of Claim 4, since the said upright board part and a board | substrate are synthetic resin members among launch pads, manufacture becomes easy. Since the flat plate-like rail body is a metal plate fixed to the surface of the substrate, the frictional resistance between the game ball and the surface of the flat plate-like rail body is reduced, and the wear resistance can be increased.

  According to the fifth aspect of the present invention, the striking surface of the hammer head of the launching device with respect to the game ball is ground so as to be a surface orthogonal to the traveling direction of the game ball. The traveling direction of the sphere can be made accurate and stable.

It is one perspective view of 1st Example of the game ball | bowl launching mechanism which incorporated the launch rail apparatus in the launcher. It is the perspective view seen from the other side of 1st Example. It is a front view of 1st Example, and shows a time when a hammer exists in an initial position with a continuous line. It is the IV-IV arrow directional view (left view) of FIG. FIG. 5 is an enlarged sectional view taken along line VV in FIG. 3. It is explanatory drawing shown by the VI-VI line arrow of FIG. 5 of the firing rail of 1st Example. It is one perspective view of 2nd Example of the game ball | bowl launching mechanism which incorporated the launch rail in the launcher. It is the perspective view seen from the other side of 2nd Example.

  Next, the form for implementing this invention is demonstrated with reference to FIGS. 1-6 which shows 1st Example of the game ball | bowl launching mechanism of this invention. 1 and 2 are perspective views of a game ball launching mechanism in which a launch rail device 30 is incorporated in the launching device 1, FIG. 3 is a front view of the game ball launching mechanism, and FIG. 4 is a view taken along line IV-IV in FIG. is there. The metal base plate 2 is assembled with components of the launching device 1 and components of the firing rail device 30. The components are a clapper type solenoid (electromagnet) 3 composed of components such as a coil 4, a stator 5, and a mover 6, a hammer 7 fixed to the mover 6, a bias device 10, a plurality of stopper means, and a firing rail The launch pad 31 and the like in the device 30 are included.

  As shown in FIG. 3, the stator 5 includes an inner iron core (not shown) disposed in the cylinder of the cylindrical coil 4 and an L-shaped outer iron core connected to the base end of the inner iron core. 5b. The inner iron core and outer iron core 5b are formed by laminating a large number of silicon steel plates, which are soft magnetic materials. However, a high magnetic permeability alloy such as an iron nickel alloy (permalloy) plate may be used, and soft ferrite may be used in a predetermined manner. It may be fired after compression molding into the shape.

  The stator 5 is fixed to the base plate 2 at an accurate installation position by a plurality of positioning pins 15 and a plurality of set screws 16. A suction recess 17 that is an opening magnetic pole surface is formed at the tip of the inner iron core (a portion that can be approached and opposed to a projecting head 20 of a mover 6 described later, and a magnetic pole surface) (FIG. 1, (See FIG. 3). The suction recess 17 is formed in the shape of a truncated cone having a flat bottom surface and a pair of side surfaces having an inclined surface extending in the opening direction.

  Similar to the stator 5, the mover 6 is formed by laminating a large number of magnetic plates such as silicon steel plates, and is fixed by caulking pins 12 or the like at a plurality of locations. A projecting head 20 is integrally formed on the movable element 6. When the coil 4 is energized, the end surface (top surface) of the projecting head 20 and the pair of inclined side surfaces of the movable element 6 are in a predetermined operating gap (clearance) with respect to the bottom surface and the pair of inclined surfaces of the suction recess 17 of the inner core. The suction recess 17 and the protruding head 20 are formed in a truncated trapezoidal shape that is substantially similar.

  The striking surface 22 of the head of the hammer 7 for striking the game ball 23 is located at a position longer than the distance from the center of the support shaft 21 of the mover 6 to the protruding head 20 (radially outward). In order to reduce the rotational moment (moment of inertia) on the mounting side (radially outer side) of the hammer 7 in the mover 6, the number of laminated magnetic bodies on the mounting side of the hammer 7 is reduced and the stepped portion is formed. A hammer 7 is integrally formed. Similarly, a hollow hole is formed on the distal end side of the mover 6 in order to reduce the rotational moment. Note that a pair of bearings for pivotally supporting a pivot shaft 21 fitted to the base end of the mover 6 so as to be pivotable with little rotational resistance is provided on a pair of reinforcing plates which are one side portion of the outer core of the stator 5. (Rolling bearing) is fixed.

  The bias device (biasing means) 10 for returning the mover 6 to the initial position (return position) when the suction of the mover 6 by the stator 5 is released (the energization release of the coil 4) is released. And the movable element 6 (see FIG. 3).

  The launcher 1 is provided with a plurality of stopper means. The first stopper means 27 is fixed to the base plate 2 facing the front end side of the mover 6 (a location farther away from the support shaft 21 in the radial direction than the striking surface 22 of the hammer 7). A block body made of hard rubber or synthetic resin and having wear resistance is fitted and fixed to the holding body 27b, and the holding body 27b is screwed to the base plate 2. The coil 4 is energized, and the projecting head 20 of the mover 6 that rotates in the suction rotation direction is brought close to the suction recess 17 by suction. By this operation (striking operation), after hitting the game ball 23 of the firing start portion on the firing rail 9 with the striking surface 22 of the head of the hammer 7, the contact portion integrally formed on the distal end side of the mover 6 6c is comprised so that it may collide with the front end surface of the block body of the 1st stopper means 27. FIG.

  The second stopper means 29 is configured such that the protruding head 20 comes closest to the suction recess 17 due to the suction force of the protruding head 20 by the inner iron core after the contact portion 6c collides with the front end surface of the block body 27a. In this state, a minute required operation gap is maintained between the protruding head 20 and the suction recess 17. The second stopper means (projection) 29 is formed integrally with the end surface of the inner iron core, and the contact portion 28 with respect to the second stopper means (projection) 29 has excellent wear resistance. A protrusion formed integrally with the hammer 7.

  By adopting the two-stage stopper configuration of the first and second stopper means 27 and 29, the impact force of the collision that cannot be absorbed by one stopper means can be efficiently absorbed. In addition, with one stopper means, an excessive external force (impact force) acts on a specific part of the mover 6, and the mover 6 is easily deformed or damaged by the repeated impact, but this is prevented. This is to improve durability. In particular, if the projecting head 20 repeatedly collides with the suction recess 17, the shape of both parts changes, and the characteristics of the attraction force by the electromagnet, such as the uneven distance of the required operating gap (clearance), are present. This is to eliminate this phenomenon because it changes from the initial state and deteriorates.

  The third stopper means 25 is for setting an initial position (return position) in which the projecting head 20 of the mover 6 is farthest from the suction recess 17 of the stator 5 and similarly has wear resistance. A cylindrical block body 25a made of synthetic resin is fixed to the base body 2 with screws or the like.

  The hammer 7 made of synthetic resin is integrated with the mover 6 by outsert molding, and the hammer 7 is detached from the mover 6 by having a plurality of connecting portions penetrating the mover 6 in the plate thickness direction. It is impossible.

  The synthetic resin material of the hammer 7 has a high resistance (fatigue resistance) against repeated collisions with the game ball 23 and has an appropriate compression elastic force (bounce repulsion), and further has a high moldability and high slip. A material having high mobility and wear resistance is preferable, and examples thereof include polyetherimide, polyethersulfone, polyetherketone, polyamideimide, and thermoplastic polyester elastomer. And the hitting surface 22 with respect to the game ball of the head of the hammer 7 is ground so that it may become a surface orthogonal to the running direction of a game ball.

  The first embodiment of the launch rail device 30 according to the present invention includes a launch plate 31 made of a metal plate shown in FIGS. 1 to 6 and a U-shaped cross section made of a synthetic resin adjacent to the downstream end of the launch platform 31. And a mold discharge passage 32. The discharge path 32 is formed integrally with a case 33 that surrounds the outer periphery of the stator 5 of the launcher 1.

  The launch pad 31 is U-shaped in cross section (see FIG. 5) and is also U-shaped in front view (see FIG. 3), and includes a holding unit 34 for holding the game ball 23 at an injection position, and at least the holding unit 34. And a flat plate-like rail body 35 that travels at the time of launch. The holding portion 34 includes an upright plate portion 36 that stands up from the flat plate-like rail body 35, and has a flat plate-like rail body 35 and a back plate 37 on the back side of the upright plate portion 36. The top plate 38 is connected to the upper ends of the upright plate portion 36 and the back plate 37 facing each other. The back plate 37 is fixed to the base plate 2 with screws or the like, and the entire launch pad 31 is fixed to the launching device 1. By making the entire launch pad 31 made of a metal plate, the rigidity can be increased.

  The upright plate portion 36 has a hole 39 into which the head of the hammer 7 can enter the game ball 23 so that the edge of the hole 39 is far from the flat plate rail body 35. A pair of holding pieces 40 that contact the game ball 23 is provided so as to hold the game ball 23 at the injection position (see FIGS. 5 and 6). The pair of holding pieces 40 is performed by pressing or the like on the edge of the hole 39.

  With the above-described configuration, only the lowermost point of the game ball 23 is in contact with the surface of the flat plate-like rail body 35 at the injection position, and the left and right portions on the upper side of the game ball 23 are the pair of holding pieces. Since the game ball 23 is supported at 40, it is possible to ensure a stable position holding (not wobbling from side to side) of a total of three points.

  The coil 4 is energized to drive the mover 6 (hammer 7), and the hitting surface 22 collides with the game ball 23, thereby causing the game ball 23 to travel. At this time, since only the lowest end point of the game ball 23 is in contact with the surface of the flat plate rail body 35, the frictional resistance between the game ball 23 and the surface of the flat plate rail body 35 is minimized, There is no variation in frictional resistance in the width direction of the flat plate-like rail body 35, and wear resistance can be increased. Further, the game ball 23 can be run from a state in which the game ball 23 is supported in a stable posture by the pair of holding pieces 40. Accordingly, the game ball 23 travels in a direction that coincides with a travel line A (a normal direction of the striking surface 22, see arrow A in FIG. 6) by the striking surface 22. In other words, the running direction of the game ball 23 is the launch rail, like a launch rail in which the cross section viewed from the direction orthogonal to the running direction of the conventional game ball 23 is formed in a V shape, M shape or H shape. Therefore, the phenomenon that the game ball 23 collides with the glass plate or the board surface of the game board does not occur.

  As shown in FIG. 6, the angle at which the flat plate-like rail body 35 extends in the traveling direction from the upright plate portion 36 is widened with respect to the traveling line A by an appropriate θ angle (about 2 to 3 degrees in the embodiment). If formed in this way, the lowest end point of the game ball 23 moves away from the surface of the flat plate-like rail body 35 in a very short time after the hitting surface 22 collides with the game ball 23. Thereby, the influence of the frictional resistance between the game ball 23 and the surface of the flat plate-like rail body 35 can be minimized, and the running direction of the game ball 23 is stabilized (not dispersed).

  7 and 8 show a second embodiment of the firing rail device. In the second embodiment, the upright plate portion 42 and the substrate 43 made up of the lower plate 43a, the back plate 43b, and the top plate 43c of the launch pad 41 are synthetic resin injection shaping members. If it is, manufacture becomes easy. Since the flat plate-like rail body 44 is a metal plate fixed to the surface (upper surface) of the lower plate 43a in the substrate 43, the frictional resistance between the game ball 23 and the surface of the flat plate-like rail body 44 is minimized, There is no variation in frictional resistance in the width direction of the flat plate-like rail body 44, and wear resistance can be increased. The upright plate portion 42 is formed with a hole 39 and a pair of holding pieces 40 as in the first embodiment. Since the launch platform 41 has the same discharge path as that of the first embodiment, the configuration, operation, and effect are the same as those of the first embodiment. Detailed description will be omitted.

  In addition, the launching device of the present invention for applying a striking force to the game ball 23 has a mechanical configuration such as a spring as disclosed in the prior art document as well as the configuration of the illustrated embodiment, and a direct acting electromagnetic. Various types of conventional structures such as a solenoid or a rotary electromagnetic solenoid provided with a striking portion at the tip of a plunger can be applied.

1 launching device 6 mover 7 hammer 21 support shaft 22 striking surface 23 game ball 30 launch rail device 31, 41 launch pad 34 holding part 35 flat plate rail body 36 upright plate part 39 hole 40 holding part

Claims (5)

A launch rail device for a gaming ball that is hit by a launching device and travels a game ball,
The launch pad in the launch rail device has a flat plate shape that travels at the time of launch, with a holding portion for holding the game ball in the shot position and at least a lower end of the game ball stopped at the holding portion. A rail body, and
The holding portion comprises an upright plate portion that stands up from the flat plate rail body,
In the upright plate portion, the hammer head in the launching device has a hole that can hit the game ball,
A pair of holding pieces that come into contact with the game ball so as to hold the game ball at an emission position are provided on a side of the edge of the hole far from the flat plate rail body. To launch rail device.   The launch rail device according to claim 1, wherein the launch pad is fixed to the launch device.   The launch rail device according to claim 1 or 2, wherein the launch pad is made of a metal plate.   The said upright board part and a board | substrate are synthetic resin members among the said launch pads, The said flat plate-shaped rail body is a metal plate fixed to the surface of the said board | substrate, The Claim 1 or 2 characterized by the above-mentioned. A firing rail device according to claim 1.   5. The striking surface of the hammer head of the launching device with respect to the game ball is ground so as to be a surface orthogonal to the traveling direction of the game ball. Launch rail device.

Images