JP5065338B2 - Prize opening device for pachinko machines - Google Patents

Description

The present invention relates to input Shoguchi equipment for pachinko machines.

  Conventionally, as a board component structure for a prize opening device provided in a game board of a pachinko gaming machine, for example, a board provided in a variable prize winning device for pachinko machines described in Patent Document 1 below is disclosed. Here, the said board | substrate is comprised by inserting the surface lens in the frame body which gave metal plating.

Japanese Patent Laid-Open No. 05-200146

  By the way, in the substrate of the above variable winning device, the surface lens and the frame are formed separately from each other. For this reason, in order to fit the surface lens into the frame as described above, a fitting configuration for fitting the surface lens into the frame is required in both the surface lens and the frame. As a result, the structure of the substrate becomes complicated, and the troublesomeness of the assembly work of the substrate increases. This means that the configuration of the variable winning device is complicated, and the troublesome work of assembling the variable winning device is increased.

  Further, as described above, since the metal plating is applied to the frame body, the metal plating plays a role of enhancing the decorative effect of the substrate. As a result, the appearance of the board has been improved, and in response to the improvement in the appearance of the game board, which has been requested from the viewpoint of further improving the ability to attract customers of pachinko machines in recent years, we will respond temporarily. It is thought that it is going.

  However, as described above, the substrate is configured by fitting the surface lens into the frame. For this reason, the game ball rolling from the upper side toward the lower substrate collides with the frame.

  Here, since the metal plating is applied to the frame as described above, even if wear and damage of the frame due to the collision of the game ball can be prevented, the game ball is attached to the frame. When collisions occur repeatedly, the metal plating on the frame may be partially damaged and peeled off. As a result, when the variable winning device is viewed from the substrate side, the appearance is deteriorated. This cannot respond to the improvement of the decoration effect seen from the board surface of the game board mentioned above.

Therefore, in order to deal with the above, the present invention has a good decorative effect by the plating film based on the integral molding that effectively utilizes both the easily plated thermoplastic resin and the difficultly plated thermoplastic resin. and to provide the incoming Shoguchi equipment for pachinko machines ing with ingenuity so as to maintain.

Upon solving the above problem, the winning port device for pachinko game machine according to the present invention, according to the description of claim 1 it is mounted from the panel surface on the game board of the pachinko machine.
In the prize opening device,
And easy plating thermoplastic resin base plate comprising an opening that opens as winning possible game ball toward the front,
Game ball and a winning hole body made of the possible winning flame plating thermoplastic resin from above,
The winning mouth body is formed integrally with the base plate so as to be joined on the base plate so as to be able to win a game ball from above.
A plating film is formed at least on the surface portion of the base plate that is visible from the player ,
The winning mouth is formed in a L-shaped cross section at the front side portion and the convex portion so as to have a convex portion protruding downward from the back side portion of the front side portion and the back side portion of the lower edge portion. Become
The base plate is notched downward so as to be L-shaped in cross section along with the front side part of the upper edge part at the back side part of the upper edge part, forming a notch part,
The convex portion of the winning mouth is joined in the notch of the base plate so that the front side portion of the lower edge portion of the winning mouth portion is joined to the front side portion of the upper edge portion of the base plate. characterized in that the.

According to this , the base plate and the winning opening are integrally formed. Therefore, the assembly structure is not required between the required Do that the base plate and the winning port body when assembled with each other to form a base plate and a winning opening the body separately, extra assembly work of winning opening device unnecessary Become.

Further, winning opening body, from being integrated base plate and its upper side, the game ball is likely to collide with the nose rather winning hole body base plate. Here, the winning port body is formed of a thermoplastic resin, moreover, to those the winning mouth body not been formed is plated film. Therefore, the game ball is not via the plated film, directly, so that the collision to the winning port body ing a thermoplastic resin. Therefore, when playing ball repeatedly collide with the winning port body, even if hard and those the winning mouth member, the collision portion of the game ball of winning hole of this is, so that the gradually worn by the collision.

However, even if the winning opening is worn in this way , it is only the surface of the thermoplastic resin that appears in the worn part, and the appearance of the winning opening may cause a decrease due to peeling of the plating film. There is no difference from the state where the winning opening is not worn.

As a result, even if the winning mouth is worn as described above, the appearance of the winning mouth device is maintained without much deterioration according to both the outer surface of the plating film of the base plate and the outer surface appearing on the winning mouth. Can be done. In addition, even if the formation of the plating film on the winning opening device is performed after the base plate and the winning opening are integrally formed, the forming material of the base plate is an easily plated thermoplastic resin, and the winning opening Therefore, the plating film can be formed only on the base plate without forming the plating film on the winning opening.
Moreover, as described above, the winning mouth body has a cross section L at the front side portion and the convex portion so as to have a convex portion protruding downward from the back side portion of the front side portion and the back side portion of the lower edge portion. The base plate is notched downward so as to be L-shaped in cross section along with the front side part of the upper edge part at the back side part of the upper edge part to form a notch part. The convex portion of the winning mouthpiece is joined into the notch portion of the base plate so that the front side portion of the lower edge portion of the winning mouth portion is joined to the front side portion of the upper edge portion of the base plate. I did it.
Therefore, compared to the case where the joint surface between the convex portion of the winning mouth and the notch portion of the base plate is simply a flat surface of each joint surface between the lower edge portion of the winning mouth body and the upper edge portion of the base plate, Only the boundary surface portion between the back side portion of the lower edge portion of the winning opening body and the front side portion of the upper edge portion of the base plate widens.
For this reason, the joint strength between the lower edge part of the prize-winning body and the upper edge part of the base plate after the integral molding can be further enhanced. As a result, the mechanical strength by the integral molding with the base plate of the winning prize opening body can be further improved.
Moreover, since the convex part of the winning mouth is joined in the notch part of the lower edge part of the base plate as described above, the convex part of the winning mouth is located on the back side of the front side portion of the base plate. .
For this reason, when the player visually recognizes the base plate from the front side, the back side portion of the lower edge portion of the winning opening, that is, the convex portion is blocked by the front side portion of the base plate. Therefore, the player cannot visually recognize the back side portion of the lower edge portion of the winning mouth, that is, the convex portion.
Therefore, the plating film portion corresponding to the front side portion of the base plate among the plating films formed on the surface portion of the base plate that is at least visible from the player is visually recognized. Therefore, even if the lower edge portion of the winning mouth is transparent, for example, the back side portion of the lower edge portion of the winning mouth body, that is, the convex portion is visually recognized through the front side portion of the upper edge portion of the base plate. There is no.
Thereby, the boundary between the upper edge portion of the base plate and the plating film is formed cleanly along the joining line between the winning prize body and the base plate. As a result, the visibility when the winning opening and the base plate are viewed from the surface can be ensured.

According to the above, since the game ball easily collides with the winning mouth, and does not easily collide with the base plate located below the winning mouth, By integrally molding a base plate made of a plating thermoplastic resin, it eliminates the need for extra assembly work for the prize opening device and maintains a good decoration effect of the plating film, thereby winning a prize due to repeated collisions of game balls. even wear of the mouth member, the winning port body and the that obtained maintaining good appearance of the base plate, of course, the convex portion of the winning port body, as described above, the back side of the front portion of the base plate By forming so that it is located in, it can ensure favorable the mechanical strength by the integral formation of a winning opening body and a base plate, and the visibility in the boundary of a winning mouth body and a base plate.

Moreover, according to the description of claim 2, the present invention provides a prize opening device for a pachinko gaming machine according to claim 1,
Input Prize mouth body, a winning opening, a flame plating thermoplastic resin left extending portion extending to the left along the left side on the edge of the integrally bed plate from the left side of the winning opening, the winning hole or found by integrally and a flame plating thermoplastic resin right extending portion extending to along the right on the right side on the edge of the base plate,
The left extending portion and the right extension piece, respectively, from the back side portion of the front portion and rear portion of the lower edge so as to have a protrusion protruding downward in the front portion and the convex portion Are formed in a cross-sectional L-shape, and are joined to the notch portion of the base plate at the respective convex portions, and the lower edge portions of the left extension piece and the right extension piece are characterized that you have to be joined to the front portion on the front side portion of said upper edge of the base plate.

According to this, each of the left extending portion and the right extension pieces together to bond the front portion of the lower edge of the left extending portion and the right extending piece onto the front side parts of the upper edge of the base plate By joining the convex part into the cutout part of the base plate, the joint surface between each lower edge of the left extension piece and the right extension piece and the upper edge part of the upper edge part of the base plate becomes the left extension piece. Compared with the case where the joining surface between each lower edge of the right extension piece and the upper edge of the base plate is simply a flat surface, the back side portion and the base of each lower edge of the left extension piece and right extension piece Only the boundary surface portion between the upper edge portion of the plate and the front side portion becomes wider.
For this reason, the joining strength between each lower edge part of the left side extension piece and right side extension piece after the said integral shaping | molding, and the upper edge part of a base plate can be strengthened further. As a result, the mechanical strength by the integral molding with the base plate of the winning prize opening body can be further improved.
Further, as described above, the back portion position of the lower edge of the left extending portion and the right extending piece, i.e., the convex portion is positioned on the rear side of the front portion of the upper edge portion of the base plate.
Therefore, when a player has visually the base plate from the front, the back side portion position of the lower edge of the left and right sides extending piece, i.e., each protrusion is blocked by the front portion of the upper edge portion of the base plate. Therefore, the player cannot visually recognize the back side portion of each lower edge portion of the left and right side extending pieces.
Accordingly, the player becomes possible to visually recognize the 鍍 gold film portion that corresponds to the surface portion position of the upper edge of the plating film sac Chi base plate formed by forming on the surface of the base plate. Therefore, even if the left and right side extending pieces are transparent, for example, the back side portion of each lower edge portion of the left and right side extending pieces is not visually recognized through the front side portion of the upper edge portion of the base plate.
As a result, the boundary between the left and right extension pieces of the plating film of the base plate is formed cleanly along the joining line between the left and right extension pieces and the base plate. As a result, visibility can be secured satisfactorily when viewed its forward or al winning port body and the base plate.
According to the above, the base plate, the left extension piece, and the right extension piece are secured while ensuring good mechanical strength by integral molding between the base plate and the winning opening, the left extension piece, and the right extension piece. It is possible to ensure good visibility at the boundary between the two.

  In addition, the code | symbol in the bracket | parenthesis of each said means shows a corresponding relationship with the specific means as described in embodiment mentioned later.

1 is a front view showing a first embodiment of a pachinko gaming machine to which the present invention is applied. It is a front view which shows the game board of the said pachinko gaming machine. FIG. 3 is a partial cross-sectional enlarged side view showing the start winning opening device of FIG. 2 assembled to a game board. It is an expansion perspective view which shows the start winning opening apparatus of FIG. FIG. 3 is an enlarged front view showing the start prize opening device of FIG. 2 in a closed state of an electric tulip member. FIG. 3 is an enlarged front view showing the start prize opening device of FIG. 2 in an open state of an electric tulip member. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. It is a perspective view which shows the integral structure of the chucker member of FIG. 3, a baseplate member, and a front side housing member. (A) is a perspective view which shows the chucker member of FIG. 8, (b) is a perspective view which shows the integral structure of the baseplate member and front housing member of FIG. FIG. 9 is a molding process diagram for molding by integral molding of the chucker member, the base plate member, and the front housing member of FIG. 8. It is a schematic sectional drawing which shows the fixed mold | type and movable mold | type for demonstrating the metal mold | die attachment process of FIG. It is a schematic sectional drawing of the metal mold | die for demonstrating the mold clamping process of FIG. It is a schematic sectional drawing of the metal mold | die for demonstrating the molten resin injection process for 1st shaping | molding parts of FIG. It is a schematic sectional drawing of the metal mold | die for demonstrating the mold opening process of FIG. It is a schematic sectional drawing of the metal mold | die for demonstrating the metal mold | die replacement | exchange process of FIG. 10 in a mold open state. It is a schematic sectional drawing of the metal mold | die for demonstrating the metal mold | die replacement | exchange process of FIG. 10 in a mold clamping state. It is a schematic sectional drawing of the metal mold | die for demonstrating the molten resin injection process for 2nd shaping | molding parts of FIG. It is a schematic sectional drawing of the metal mold | die for demonstrating the mold opening of FIG. 10, and a molded component taking-out process. FIG. 11 is a plating process diagram for applying a plating process to a start winning resin molded part after the molding process of FIG. 10. It is a perspective view which shows the principal part of 2nd Embodiment of this invention. It is a fragmentary sectional view which follows the 21-21 line in FIG. It is a perspective view which shows the base plate member and front housing member of FIG.

Hereinafter, each embodiment of the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 shows a first embodiment of a pachinko gaming machine to which the present invention is applied. The pachinko machine is erected on an island (not shown) in a pachinko hall (not shown). The pachinko machine is opened and closed in the front-rear direction with respect to the machine frame (not shown). The game machine main body B and the front door FD are supported in a possible manner. The front door FD and the gaming machine main body B are supported by the machine frame so that the front door FD can be opened and closed in the front-rear direction.

  As shown in FIG. 2, the gaming machine main body B includes a gaming board Ba, and the gaming board Ba is fitted into a frame (not shown) of the gaming machine main body B. The gaming machine main body B is supported by the frame so as to be openable and closable in the front-rear direction with respect to the machine frame.

  As shown in FIG. 2, the game board Ba includes a game board 10, a guide rail 20 provided on the game board 10 from the front surface 11 side (also referred to as a board surface 11 of the game board Ba), an annular center structure 30, and the like. A game nail group 40 is provided.

  The guide rail 20 includes an inner rail portion 21 and an outer rail portion 22, and the guide rail 20 places the inner rail portion 21 on the inner side of the outer rail portion 22 so that the front surface 11 of the game board 10 is located. It is assembled along the outer periphery of (the board surface 11 of the game board Ba). Thereby, the guide rail 20 specifies the game area 11a on the board surface 11 of the game board Ba on the inner peripheral side thereof.

  Thus, the guide rail 20 guides a game ball launched from a ball launching device (not shown) by the turning operation of the handle H (see FIG. 1), and rolls it into the game area 11a. In addition, the said ball | bowl launching device is arrange | positioned in the lower right part of the said frame of the gaming machine main body B. In addition, the handle H is provided as a component part of the ball launcher from the front of the lower right portion of the frame body of the gaming machine main body B.

  As shown in FIG. 2, the center structure 30 is assembled from the front surface 11 (board surface 11) side to the outer periphery of a central opening (not shown) provided at the center of the game board 10. The game nail group 40 is composed of a large number of game nails 41, and these game nails 41 are arranged on the game board 10 on the front surface 11 (board surface 11) from the left side to the lower side of the center structure 30 inside the guide rail 20. ) Distributed from the side.

  Thus, according to the game nail group 40, the game ball rolling from the guide rail 20 into the game area 11a runs along the front surface 11 (board surface 11) of the game board 10 and collides with each game nail 41. Roll down.

  Further, as shown in FIG. 2, the game board Ba includes an image display 50, and the image display 50 faces the front from the central opening of the game board 10 at the liquid crystal panel 51. As described above, the game board 10 is disposed on the back surface. Therefore, the image display 50 performs various effects display.

  Further, the game board Ba includes a through gate 60, a windmill 70, a plurality of ordinary winning holes 80, a plurality of starboard lamps 90, and a plurality of star-shaped movable structures 90a. The plurality of ordinary winning holes 80, the plurality of starboard lamps 90, and the plurality of star-shaped movable structures 90a are arranged on the front surface 11 (board surface 11) of the game board 10 at each position shown in FIG. It is assembled inside.

  The through gate 60 is assembled to the front surface 11 (board surface 11) of the game board 10 on the left side of the central portion of the left edge of the center structure 30. Thereby, when the game ball rolls downward along the front surface 11 (board surface 11) of the game board 10 from directly above the through gate 60, the game ball gets an opportunity to pass through the through gate 60.

  The windmill 70 is assembled to the front surface 11 (board surface 11) of the game board 10 below the through gate 60. The windmill 70 extends along the front surface 11 (board surface 11) of the game board 10 or its gate. When a game ball rolls downward from the surroundings, the game ball rolls downward while rotating.

  Of the plurality of normal winning holes 80, two normal winning holes 80 are assembled to the front surface 11 (board surface 11) of the game board 10 on the lower left side of the center structure 30, and the remaining one normal winning hole is provided. 80 is assembled to the front surface 11 (board surface 11) of the game board 10 on the lower right side of the center structure 30. Thereby, each normal winning opening 80 gives a chance to win a game ball that rolls downward from the periphery thereof.

  As shown in FIG. 2, the plurality of star board lamps 90 are placed on the game board 10 on the front surface 11 (board face) between the two normal winning holes 80 on the left side and on the right side of the right normal winning hole 80. 11), and the plurality of star-shaped disk lamps 90 perform various effects by their blinking. Further, as shown in FIG. 2, the plurality of star-shaped movable structures 90a are arranged on the right side of the center structure 30, and these star-shaped movable structures 90a produce effects by moving left and right. Do.

  Further, as shown in FIG. 2, the game board Ba is provided with a start prize opening device 100, and the start prize opening device 100 is directly below the center portion of the lower edge of the center structure 30, and the game board 10. Are assembled from the front surface 11 (board surface 11) side (see FIG. 3).

  As shown in FIGS. 3 and 4, the start winning port apparatus 100 includes a housing 110 and a chucker member 120. The housing 110 includes a base plate member 110a, a front housing member 110b, and a rear housing member 110c. It is configured with it.

  The base plate member 110a and the front housing member 110b are integrally formed of polyacrylonitrile, butadiene, and styrene resin (hereinafter referred to as ABS resin) so as to have a longitudinal sectional shape shown in FIG.

  The base plate member 110a includes a base plate 111 and an L-shaped plate 112 as shown in FIG. 7, FIG. 8, or FIG. 9 (b). The base plate 111 is formed integrally with the front opening end of the front housing member 110b, and an opening 111a is formed at the center of the base plate 111 as shown in FIG. 7, FIG. 8, or FIG. As shown in the drawing, it is formed in a hexagonal shape as a game ball winning opening, and is opposed to the front housing member 110b from its front opening end. In addition, as shown in FIG. 8 or FIG. 9B, the opening 111a is formed in a hexagonal shape so as to be opposed from the left and right directions at the corners of both inner peripheral surfaces.

  Further, as shown in FIG. 9B, the base plate 111 has a U-shaped central notch 111c, and the central notch 111c is located on the left and right sides of the upper edge of the base plate 111. A U-shaped cutout is formed at the center in the direction. Here, portions of the upper edge portion of the base plate 111 other than the central portion in the left-right direction are formed in a circular arc shape in the left-right direction with the central notch portion 111c as the center.

  As shown in FIG. 7, FIG. 8, or FIG. 9B, the L-shaped plate 112 extends in a L-shape from the lower edge central portion downward and forward to the lower edge central portion of the base plate 111. Are integrally formed.

  As described above, the front housing member 110b is integrally formed with the base plate member 110a with the ABS resin so as to have a vertical cross-sectional cylindrical shape as shown in FIG. 110b extends through the through hole 11b (see FIG. 3) of the game board 10 from the base plate 111 to the rear thereof. Here, the front housing member 110b faces the front through the opening 111a of the base plate 111 at the front opening end. The through hole portion 11b is formed in the lower center of the game board 10.

  The rear housing member 110c is formed of a thermoplastic resin so as to have a longitudinal cross-sectional shape as shown in FIG. 7, and the rear housing member 110c is formed at the front opening end portion of the front housing member. 110b is attached to the rear opening end and extends rearward.

  In the housing 110 configured as described above, the housing 110 is fitted from the front surface 11 (board surface 11) side into the through hole portion 11b of the game board 10 immediately below the center of the center structure 30, and the base plate 111. However, the outer peripheral portion is assembled to the outer peripheral portion of the through hole portion 11b of the game board 10 by fastening a plurality of screws (not shown).

  In the first embodiment, after the base plate member 110a and the front housing member 110b are integrally formed with the chucker member 120 (described later), the base plate member 110a and the front housing member 110b are respectively exposed to the outside. A plating film M (see FIG. 4) is formed on the exposed surface.

  The chucker member 120 is integrally formed with a polycarbonate resin (hereinafter referred to as PC resin) so as to have the outer shape shown in FIG. 9A. The chucker member 120 includes a start chucker 120a, It is configured with left and right curved pieces 120b.

  The start chucker 120 a is configured by a U-shaped body 121 and a front wall 122. As shown in FIG. 4, FIG. 7, FIG. 8, or FIG. 9A, the U-shaped body 121 is formed in a U-shaped cross section with a bottom wall 121a and left and right side walls 121b.

  The front wall 122 is formed integrally with the front end portions of the bottom wall portion 121a and the left and right side wall portions 121b at the left and right side edge portions and the lower edge portion thereof, and closes the front end opening portion of the U-shaped body 121. . Here, both inner surfaces of the front wall 122 and the bottom wall part 121a are formed in a cross-sectional curved shape that is convex toward the lower left side from the upper end part of the front wall 122 to the rear end part of the bottom wall part 121a. Thereby, the game ball rolling from above into the start chucker 120a can be smoothly guided to the rear by both inner surfaces of the front wall 122 and the bottom wall 121a.

  As shown in FIG. 5 or 6, the left and right curved pieces 120 b are formed integrally with the start chucker 120 a so as to symmetrically extend from the start chucker 120 a in the left-right direction with respect to the center in the left-right direction. ing.

  Here, as shown in FIG. 8 or FIG. 9A, the left curved piece 120b is an arc that protrudes upward from the rear end portion of the left wall 121b of the start chucker 120a so that the front surface thereof faces forward. The shape extends downward on the left side. On the other hand, the right curved piece 120b extends downward in the right side with an arc shape protruding upward from the rear end portion of the right wall 121b of the start chucker 120a so that the front surface thereof faces forward.

  However, as can be seen from FIG. 5 or FIG. 6, the left and right curved pieces 120 b are circumferentially centered around the upper center of the rear end of the U-shaped body 121 (the upper edge of the base plate 111. Extending in the direction along Further, in the first embodiment, the inclined surface portion 123 is formed on each of the upper edge portions of the left and right curved pieces 120b so as to face diagonally upward on the front side as shown in FIG. 8 or FIG. 9A. ing.

  In the chucker member 120 configured as described above, the start chucker 120a is located in the U-shaped central notch 111c (see FIG. 9B) of the base plate 111 at the left and right rear ends of the U-shaped body 121. The left and right curved pieces 120b are integrally joined to the left and right upper edge portions of the base plate 111 at the lower edge portions thereof. Is formed.

  Thus, the chucker member 120 opens upward along the front surface 11 (board surface 11) of the game board 10 at the start chucker 120a, and at the front surface 11 (board surface 11) of the game board 10 at the left and right curved pieces 120b. Is supported by the game board 10 via the base plate 111.

  Thus, the game ball rolling from above in the start chucker 120a (see symbol P in FIG. 3) can be seen from the inner surface side of the front wall 122 to the bottom wall as can be seen by the arrow indicated by the two-dot chain line in FIG. Guided toward the inner surface side of the part 121a, passes through the U-shaped guide path 113 (see FIGS. 3 and 7) of the front housing member 110b, and passes from the upper wall 114 of the rear housing member 10c to the rear surface side of the game board 10. It falls (see Fig. 3).

  Here, the U-shaped guide path 113 has the upper wall of the front housing member 110b as the bottom wall 113a (see FIG. 7), and the game ball P from the bottom wall portion 121a of the U-shaped body 121 is placed over the rear housing member 10c. A U-shaped cross section is formed so as to be guided on the wall 114.

  The start winning a prize opening device 100 includes a decorative member 130, an electric tulip member 140, a crank mechanism 150, and an actuator 160, as shown in FIG. 3, FIG. 4 or FIG.

  The decorative member 130 is assembled to the base plate 111 from the front side thereof via the electric tulip member 140. As shown in any of FIGS. 3 to 7, the electric tulip member 140 has left and right side blades 141, and these left and right side blades 141 are connected to the support shafts 141 a (see FIGS. 5 and 6), Along the front surface of the base plate 111, the base plate 111 is supported by the through-hole support holes 111b (see FIG. 8) so as to be able to be opened and closed in opposite directions. As shown in FIG. 8, each through-hole support hole 111b is formed in the base plate 111 on both the left and right sides of the opening 111a.

  Each of the left and right blades 141 has an eccentric shaft 141b (see FIG. 7). The eccentric shafts 141b are spaced from each other so as to be eccentric from the respective support shafts 141a. 7, the base plate 111 passes through the opening 111 a and extends into the front housing member 110 b.

  As a result, the left and right blades 141 are opened by being tilted outward from each other by the upward displacement of each eccentric shaft 141b with respect to each support shaft 141a, and by the downward displacement of each eccentric shaft 141b. Tilt to each other inward and close.

  According to the electric tulip member 140 configured in this manner, a game that rolls downward from the left and right sides of the start chucker 120a along the front surface 11 (board surface 11) of the game board 10 with the left and right blades 141 open. When the ball enters between the left and right blades 141, the game ball passes through the opening 111a as the winning opening of the base plate 111 and enters the front housing member 110b, and then the detection hole Sa of the winning sensor S. Fall through. The winning sensor S is provided in the detection hole Sa so as to be positioned in the bottom of the rear housing member 10c, and the winning sensor S receives a game ball passing through the detection hole Sa. Detected as a winning ball.

  The crank mechanism 150 has left and right side crank levers 151 (only the left side crank lever 151 is shown in FIG. 7), and the left and right side crank levers 151 are located on the left and right sides of the support shaft 152 at the upper intermediate portion thereof. Supported by the parts, they are parallel to each other and can be tilted up and down.

  Further, the left and right crank levers 151 are connected to the eccentric shafts 141b so as to sandwich the extended ends of the eccentric shafts 141b of the left and right blades 141 in the bifurcated portions 151a.

  As a result, the left and right crank levers 151 are displaced in the clockwise direction shown in FIG. 7 to displace the eccentric shafts 141b of the left and right side blades 141 upward, and are tilted in the counterclockwise direction shown in FIG. Thus, each eccentric shaft 141b is displaced downward. Note that the support shaft 152 is supported at both ends of the support shaft 152 at the intermediate portions in the front-rear direction of the left and right side walls of the housing 110.

  As shown in FIG. 7, the actuator 160 includes a cylindrical casing 161, a solenoid (not shown) coaxially accommodated in the casing 161, a plunger 162, and a coil spring 163.

  The casing 161 is accommodated in a U-shaped accommodating portion 115 having a transverse cross section of the housing 110. The plunger 162 is fitted at the shaft portion (not shown) so as to be coaxially displaceable from the front wall portion of the casing 161 into the solenoid. The plunger 162 is fitted at the head portion 162a. The left and right crank levers 151 are interposed between the upper rear portions 151b (only the left upper rear portion 151b is shown in FIG. 7), and are connected to the upper rear portions 151b so as to be relatively rotatable. The accommodating portion 115 is formed along the axial direction of the rear housing member 110c at the rear portion of the rear housing member 110c.

  Here, the connection part of the head 162a with respect to each upper rear part 151b of the left and right crank levers 151 is positioned on the rear upper side of each connection part with respect to the support shaft 152 of the left and right crank levers 151.

  The coil spring 163 is coaxially fitted to the shaft portion of the plunger 162 between the head portion 162 a of the plunger 162 and the front wall portion of the casing 161. Thereby, the coil spring 163 urges the plunger 162 toward the front via the head 162a.

  In the actuator 160 configured as described above, the plunger 162 tilts the crank lever 151 counterclockwise by the head 162a with the coil spring 163 biased in the demagnetized state of the solenoid. Keep in position. This means that the electric tulip member 140 closes the left and right blades 141 as shown in FIG. On the other hand, the plunger 162 is attracted by the solenoid with its excitation and tilts the crank lever 151 in the clockwise direction. This means that the electric tulip member 140 opens the left and right side blades 141 as shown in FIG.

  In addition, as shown in FIG. 2, the game board Ba is provided with a big prize opening device 100 a, and this big prize opening device 100 a is directly below the starting prize opening device 100, with a front face 11 ( It is assembled from the board surface 11) side. Thus, the grand prize opening device 100a opens the grand prize opening, thereby giving rise to the possibility of winning a large number of game balls.

  Next, the manufacturing method of the base plate member 110a of the housing 110, the front housing member 110b, and the chucker member 120 among the constituent members of the start winning award opening apparatus 100 configured as described above will be described. Hereinafter, in the first embodiment, the base plate member 110a, the front housing member 110b, and the chucker member 120 before the plating process are also referred to as start winning opening resin molded parts.

The start winning opening resin molded part is manufactured through an integral molding process using a different type resin injection molding machine (not shown) and a plating process after the integral molding process as follows.
1. Integrated Molding Step (1) Mold Preparation Step In the mold preparation step S1 (see FIG. 10), a molding site corresponding to the chucker member 120 in the start winning opening resin molded part (hereinafter also referred to as a first molding site). Of the mold 200a (see FIG. 11 and FIG. 12) required for forming the mold and the start winning opening resin molded parts, molding parts corresponding to both the base plate member 110a (excluding the plating film described later) and the front housing member 110b. A mold 200b (see FIGS. 15 and 16) required for molding (hereinafter also referred to as a second molding site) is prepared.

  As shown in FIGS. 11 and 12, the mold 200 a includes a fixed mold 210 and a movable mold 220, and the movable mold 220 has an outer periphery engaging portion 211 of the fixed mold 210 at its outer periphery engaging portion 221. To be disengageable.

  The mold 200a is configured to form a mold cavity 230 (see FIG. 12) inside the mold 200a with the fixed mold 210 and the movable mold 220 being engaged. The start winning opening resin is formed between the molding surfaces 212 and 222 of the fixed mold 210 and the movable mold 220 on the inner peripheral side of the outer peripheral engaging portions 211 and 221 of the fixed mold 210 and the movable mold 220. A space corresponding to the first molding part (molding part corresponding to the chucker member 120) of the molded part is set.

  Here, for example, according to the cross section shown in FIG. 12, the molding surface 212 of the fixed mold 210 is a curved surface portion 212 a that protrudes toward the lower left side. The cross section of the mold cavity 230 corresponding to the cross section of the first molding portion corresponding to the cross section of the chucker member 120 is configured together with the substantially L-shaped molding surface portion 222a.

  Further, the movable mold 220 has a molten resin passage 223 as shown in FIG. 11 or FIG. The molten resin path 223 is configured with a sprue 223a, a runner 223b, and an injection port 223c. The molten resin path 223 is a molten resin for the first molding portion described above from the injection cylinder C1 (see FIG. 12). This is a runner for injecting the molten resin for the first molding site (hereinafter referred to as the first molding site molten resin) into the mold cavity 230 through the runner 223b and being injected into the mold cavity 230 through the runner 223b. .

  The mold 200b shares the above-described mold 200a and the movable mold 220, and the mold 200b includes a fixed mold 240 and the above-described movable mold 220 as shown in FIG. Thus, the movable die 220 is detachably engaged with the outer periphery engaging portion 241 of the fixed die 240 at the outer periphery engaging portion 221 thereof.

  The mold 200b is configured so as to form a mold cavity 250 (see FIGS. 16 and 17) inside the mold 200b with the fixed mold 240 and the movable mold 220 being engaged. The cavity 250 is formed between the molding surfaces 242 and 222 of the fixed mold 240 and the movable mold 220 on the inner peripheral side of both the outer peripheral engaging portions 221 and 241 of the fixed mold 240 and the movable mold 220, and the start-up described above. A space corresponding to the second molding part (molding part corresponding to both the base plate member 110a (excluding a plating film to be described later) and the front housing member 110b) of the prize-winning resin molded part is set.

  Here, according to the cross section shown in FIG. 16, the molding surface 242 of the fixed mold 240 includes a substantially U-shaped molding surface portion 242a, a straight linear molding surface portion 242b, a substantially wedge-shaped molding surface portion 242c, and a U-shaped molding surface. The surface portions 242d and 242e correspond to the cross sections of the base plate 111, the L-shaped plate 112, and the front housing member 110b together with the molding surface portion 222b and the L-shaped molding surface portion 222c of the molding surface 222 of the movable mold 220. A cross section of the mold cavity 250 corresponding to the cross section of the second molding site is formed.

Moreover, the movable mold 220 has a molten resin path 224 in addition to the above-described molten resin path 223. The molten resin passage 224 is constituted by a sprue portion 224a, a pouring passage portion 224b, and an injection port portion 224c. The molten resin passage 224 is formed from the injection cylinder C2 (see FIG. 16) to the second molding portion. Of molten resin (hereinafter, referred to as molten resin for the second molding site) is injected into the gate part 224a as described later and injected into the mold cavity 250 from the inlet part 224c via the hot water channel part 224b. Road.
(2) Mold mounting process After preparing both molds 200a and 200b as described above, in the next mold mounting process S2 (see FIG. 10), each of the fixed molds 210 and 240 is replaced by the above-described different resin injection molding machine. The movable mold 220 is attached to each fixed mold attachment section, and the movable mold 220 is attached to the movable mold attachment section of the heterogeneous resin injection molding machine. However, the movable mold 220 is positioned so as to face the fixed mold 210 (see FIG. 11). In addition, the said different type resin injection molding machine is comprised so that the movable mold | type 220 may be made to oppose any of each fixed mold | type 210,240 automatically by the operation.
(3) Mold Clamping Process Thereafter, in the next mold clamping process S3 (see FIG. 10), the movable mold 220 is moved to the fixed mold 210 side under the operation of the above-mentioned different resin injection molding machine. 12, the outer peripheral engagement portion 221 of the movable mold 220 is engaged with the outer peripheral engagement portion 211 of the fixed mold 210. This means that the mold 200a is clamped. As a result, a mold cavity 230 is formed in the mold 200 a between the molding surface 212 of the fixed mold 210 and the molding surface 222 of the movable mold 220.
(4) First Molding Site Molten Resin Injection Process After the mold engaging step S3 is processed as described above, in the first molding site molten resin injection process S4 (see FIG. 10), The PC resin, which is the raw material of the molten resin for the molding site, is supplied in the form of particles into the hopper H1 (see FIG. 12) of the above-described different resin injection molding machine.

  Next, the PC resin in the hopper H1 is melted by the injection cylinder C1 and injected from the gate 223a into the molten resin passage 223 of the movable mold 220 from the injection cylinder C1 as the molten resin for the first molding part. . Then, the molten PC resin is injected into the mold cavity 230 from the injection port portion 223 c through the molten resin path 223. Accordingly, the molten PC resin is filled over the entire mold cavity 230 (see the hatched portion in FIG. 13).

Thus, the molten PC resin filled over the entire mold cavity 230 is cooled and solidified by the mold 200a in a cooled state while maintaining pressure on the mold cavity 230. Thereby, the PC resin solidified in the mold cavity 230 is molded as the chucker member 120. In addition, from this, it can be said that the above-mentioned molten resin injection process S4 for the first molding part is a first molding part molding process.
(5) Mold opening process When the processing of the molten resin injection process S4 for the first molding part is completed as described above, in the next mold opening process S5 (see FIG. 10), the operation of the heterogeneous resin injection molding machine is performed. Then, the movable mold 210 is moved away from the fixed mold 210. This means that the mold 200a is opened. Accordingly, the movable mold 220 is detached from the fixed mold 210 together with the molded chucker member 120 as shown in FIG.
(6) Mold Replacement Process Thereafter, in the mold replacement process S6 (see FIG. 10), the fixed mold 240 is opposed to the movable mold 220 in place of the fixed mold 210 by operating the above-described different resin injection molding machine. (See FIG. 15). As a result, the exchange of the fixed mold 210 with the fixed mold 240 is completed. This means that the mold 200a has been replaced with the mold 200b. Along with this, the movable die 220 is engaged with the outer periphery engaging portion 241 of the fixed die 240 by the outer periphery engaging portion 221 by the operation of the different type resin injection molding machine. This means that the mold 200b is clamped.
(7) Molten resin injection process for the second molding part After the processing of the mold changing process S6, in the next molten resin injection process S7 for the second molding part (see FIG. 10), the above-mentioned molten resin for the second molding part The raw material ABS resin is supplied in the form of particles into the hopper H2 (see FIG. 16) of the above-described different resin injection molding machine.

  Next, the ABS resin in the hopper H2 is melted by the injection cylinder C2, and is injected from the gate 224a into the molten resin passage 224 of the movable mold 220 from the injection cylinder C2 as the molten resin for the second molding part. . Then, the molten ABS resin is injected into the mold cavity 250 from the injection port portion 224 c through the molten resin passage 224. Along with this, the molten ABS resin is filled over the entire mold cavity 250 (see FIG. 17).

  The molten ABS resin filled in the entire mold cavity 250 in this way is integrated with the chucker member 120 and is cooled by the mold 200b in a cooled state while maintaining pressure on the mold cavity 250. Solidify. Thereby, the ABS resin solidified in the mold cavity 250 is molded as the second molding part (that is, the base plate member 110a and the front housing member 110b before plating). From this, it can be said that the molten resin injection process S7 for the second molding part is the molding process S7 for the second molding part.

Further, as described above, the molten ABS resin filled in the mold cavity 250 is integrated with the first molding part and solidified, thereby being integrated with the first molding part (chucker member 120). The second molded part is formed (see FIG. 17). This means that the second molding part is integrated with the first molding part and integrally molded as the start winning opening resin molded part.
(8) Mold Opening and Molding Part Extraction Process Thereafter, in the next mold opening and molding part extraction process S8 (see FIG. 10), the movable mold 210 is fixedly operated under the operation of the different resin injection molding machine. Move away from 240. As a result, the mold 200b is opened (see FIG. 18). At this time, the start winning port resin molded part molded by integral molding as described above remains on the fixed mold 140 side.

  For this reason, the start winning opening resin molded part is pushed out from the fixed mold 240 to the movable mold 210 side by an operation of an ejector (not shown) of the heterogeneous resin injection molding machine. Thereafter, the start winning port resin molded part (see symbol A in FIG. 18) pushed out in this way is taken out to complete the molding of the start winning port resin molded part A by integral molding. Thereby, the said integral formation process is complete | finished.

  In the first embodiment, in the configuration of the start prize opening device 100, the base plate member 110a, the front housing member 110b, and the chucker member 120 are integrally formed by integral molding as described above. Based on the basis of.

  In order to handle the start winning a prize opening device 100 as a single unit, it is desirable to form the entire configuration of the start winning a prize opening device 100 by integral molding. Here, as a forming material of the start winning a prize opening device 100, since a thermoplastic resin is usually adopted, the start winning a prize opening device 100 is generally formed by resin molding.

  However, it is almost impossible to make the entire structure of the start winning a prize opening device 100 so that it can be integrally formed in view of the functions required for the start winning a prize opening device 100. Therefore, it is required that the constituent members in the possible range of the overall configuration of the start winning a prize opening device 100 be formed by integral molding.

From such a point of view, in the start prize opening device 100, the constituent members that share the constituent space in the game board Ba and have a close relationship with each other are formed by integral molding with a thermoplastic resin. Specifically, in the first embodiment, the base plate member 110a, the front housing member 110b, and the chucker member 120 are molded by integral molding using a thermoplastic resin.
2. When the molding of the start prize opening resin molded part A is completed as described above, the plating process for the start prize opening resin molded part A is performed through the following steps.
(1) Degreasing process First, in the degreasing process S10 (see FIG. 19), the degreasing process of the start winning opening resin molded part A is performed as follows. First, an alkaline solution containing a surfactant is prepared, and the start winning opening resin molded part A is immersed in this solution. This removes oily stains such as fingerprints adhering to the exposed surface of the start winning opening resin molded part A and improves the wettability of the surface of the start winning opening resin molded part A to the etching solution. In addition, when using the acidic solution containing surfactant instead of the alkaline solution containing the above-mentioned surfactant, you may omit the post-degreasing water washing process S20 described below.
(2) Washing step after degreasing Next, in the washing step S20 after degreasing (see FIG. 19), the start winning opening resin molded part A subjected to the degreasing treatment as described above is washed with water. Thereby, the contamination of the exposed surface of the start winning opening resin molded part A can be eliminated.
(3) Etching Step After that, in the etching step S30 (see FIG. 19), the exposed surface of the portion corresponding to the base plate member 110a and the front housing member 110b in the start winning opening resin molded part A is subjected to an etching process. . Specifically, a solution containing high-temperature chromic acid and sulfuric acid is prepared as an etching solution, and the start winning opening resin molded part A is immersed in the etching solution.

  Here, the parts corresponding to the base plate member 110a and the front housing member 110b in the start winning opening resin molded part A are formed of ABS resin as described above. This ABS resin has a structure in which fine butadiene components are dispersed in a matrix of acrylic nitrile and styrene (AS matrix). The butadiene component is a rubber component that is easily oxidized.

  Therefore, as described above, when the start winning opening resin molded part A is immersed in the etching solution, the ABS in the vicinity of the exposed surface of the portion corresponding to the base plate member 110a and the front housing member 110b of the start winning opening resin molded part A is included. The butadiene component in the resin is oxidized and dissolved by the etching solution. For this reason, innumerable minute irregularities are formed on the exposed surfaces of the parts corresponding to the base plate member 110a and the front housing member 110b in the start winning opening resin molded part A. This means that an etching process is performed to roughen the surfaces corresponding to the above-described base plate member 110a1 and front housing member 110b.

  As a result, when an electroless plating process is performed on the starting winning opening resin molded part A as described later, a conductive film (described later) formed by the electroless plating process bites into the infinitesimal irregularities described above. The so-called anchor effect is generated between the start winning opening resin molded part A and the surface of the portion corresponding to the base plate member 110a and the front housing member 110b. This means that the conductive film ensures strong adhesion between the base plate member 110a and the portion corresponding to the front housing member 110b.

The first molding portion corresponding to the chucker member 120 of the start winning opening resin molded part A is formed of the PC resin as described above. The components of the PC resin are dissolved by oxidation depending on the etching solution. do not do. Therefore, even if the start winning opening resin molded part A is immersed in the etching solution as described above, the surface of the first molding portion is not etched.
(4) Post-etching water washing step When the processing of the etching step S30 is completed in this way, in the next post-etching water washing step S40 (see FIG. 19), the dirt attached to the exposed surface of the start winning opening resin molded part A is removed.
(5) Dechromation Step Next, in the dechromation step S50 (see FIG. 19), the chromium component in the components of the etching solution remaining on the exposed surface of the start winning opening resin molded part A is removed by reduction.
(6) Washing process after dechroming After that, in the washing process S60 after dechroming (see FIG. 19), the dirt adhering to the exposed surface of the start winning opening resin molded part A is removed.
(7) Catalyzing step When the processing of the post-dechromation rinsing step S60 is completed as described above, the start winning opening resin molded part subjected to the etching processing as described above in the next catalyzing step S70 (see FIG. 19). A process of implanting a palladium catalyst nucleus (a process of catalyzing) on exposed surfaces (made of ABS resin) corresponding to the base plate member 110a and the front housing member 110b of A is performed as follows.

  First, a palladium colloid solution is prepared as a catalyst solution. The palladium colloidal solution is a colloidal solution containing components of palladium chloride, stannous chloride and hydrochloric acid at respective predetermined concentrations.

  Then, when the start winning opening resin molded part A is immersed in the catalyst solution, the palladium colloid in the catalyst solution together with the components of tin and chlorine together with the base plate member 110a1 of the start winning opening resin molded part A. And it adheres to the exposed surface (made of ABS resin) of a portion corresponding to the front housing member 110b.

  Next, a sulfuric acid solution is prepared as an accelerator solution, and the start winning opening resin molded part A is immersed in the accelerator solution. Along with this, each component of chlorine and tin adhering to the surface (made of ABS resin) corresponding to the above-described base plate member 110a and front housing member 110b is dissolved, and only the palladium catalyst nucleus is an active catalyst. Remains.

Thereby, the exposed surfaces (made of ABS resin) corresponding to the above-described base plate member 110a and front housing member 110b are catalyzed. This means that the surface (made of ABS resin) corresponding to the base plate member 110a and the front housing member 110b described above is in a state suitable for electroless plating treatment (chemical plating treatment).
(8) Electroless plating step When the process of the catalyzing step S70 is completed as described above, in the next electroless plating step S80 (see FIG. 19), which is the next chemical plating step, the electroless plating with respect to the start winning opening resin molded part A is performed. Nickel plating is performed as follows.

  That is, the start winning opening resin molded part A is immersed in an electroless nickel solution. Here, the electroless nickel solution is a solution mainly containing each component of nickel sulfate, sodium hypophosphite, and ammonium citrate at a predetermined ratio.

  Thus, the start winning port resin molded part A is bathed in the electroless nickel solution for a predetermined time at a predetermined temperature (a temperature that does not cause deformation of the ABS resin). A nickel plating film is formed on the exposed surfaces of the portions corresponding to the base plate member 110a and the front housing member 110b of A. This means that the conductive film required for electrolytic plating is formed on the exposed surfaces corresponding to the base plate member 110a and the front housing member 110b.

  Here, as described above, the exposed surfaces of the portions corresponding to the base plate member 110a and the front housing member 110b are well roughened by the etching process as described above. Therefore, the nickel plating film is formed on the base plate member 110a. And it closely adheres to the exposed surface of the part corresponding to the front housing member 110b.

In addition, since the exposed surface of the part corresponding to the chucker member 120 in the start winning opening resin molded part A is not etched, a nickel plating film is not formed on the exposed surface. In the electroless plating step S80, the electroless nickel plating process 0a1 and the exposed surface of the portion corresponding to the front housing member 110b may be performed.
(9) Water washing step after electroless plating When the processing of electroless plating step S80 is completed as described above, in the next water washing step S90 after electroless plating (see FIG. 19), the start after the above electroless plating is performed. The winning opening resin molded part A is washed with water. Thereby, the start winning opening resin molded part A is cleaned.
(10) Electroless plating step Thereafter, in the next electrolytic plating step S100 (see FIG. 19), the electrolytic plating treatment for the nickel plating film as the conductive film is performed as follows. Here, copper sulfate plating treatment is adopted as the electrolytic plating treatment.

  In this copper sulfate plating treatment, a copper sulfate solution containing copper sulfate and sulfuric acid as basic components is prepared. Then, the start winning port resin molded part A subjected to the electroless plating treatment as described above is immersed in the copper sulfate solution.

  Further, a direct current voltage is applied between the electrodes, with the nickel plated film of the starting winning opening resin molded part A as a negative electrode and copper as an anode, facing each other in the copper sulfate solution. Along with this, electrolysis occurs in the copper sulfate solution between the positive and negative electrodes, and copper is deposited on the nickel plating film as the anode to form a copper plating film (corresponding to the plating film M). Is done. Thereby, the process of the said plating process is complete | finished and the chucker member 120, the baseplate member 110a, and the front side housing member 110b are manufactured as an integrally molded component which has the plating film M.

  In the first embodiment, when the start winning port resin molded part A is plated, the base plate member 110a and the front housing member 110b are excluded except for the portion corresponding to the chucker member 120 in the start winning port resin molded part A. The reason why the plating process is performed only on the portion corresponding to is based on the following grounds.

  The start winning a prize opening device 100 has an opportunity to win a jackpot lottery and is an object of great interest to a player, and has an important role in a pachinko gaming machine. For this reason, the start prize opening device 100 is provided directly below the center of the center structure 30 in the game board Ba so as to be most noticeable to the player.

  Along with this, it is required that at least a part of the starter plate member 110a and the chucker member 120 that are visible to the eyes exhibit a decorative effect that attracts the player's attention.

  In response to such a request, it is desirable to perform a plating process with an excellent decorative effect on at least a portion of the base plate member 110a and the chucker member 120 that is noticeable.

  Further, in the configuration of the start prize opening device 100, the chucker member 120 is positioned along the front surface 11 (board surface 11) of the game board 10 immediately above the base plate member 110a as described above. For this reason, the game ball that rolls along the front surface 11 (board surface 11) of the game board 10 toward the starting prize opening device 100 is directly above the wall portion of the start chucker 120a of the chucker member 120 and the left and right curved pieces 120b. Easy to collide. On the other hand, the base plate member 110a is located directly below the chucker member 120 so as to be along the front surface 11 (board surface 11) of the game board 10. For this reason, the game ball that rolls along the front surface 11 (board surface 11) of the game board 10 toward the starting prize opening device 100 is unlikely to collide with the base plate member 110a.

  Here, the impact force when the game ball collides with the wall portion of the start chucker 120a and the left and right curved pieces 120b from directly above as the game ball rolls downward is very strong because the game ball is a steel ball. .

  In consideration of these matters, the chucker member 120 of the starting prize opening device 100 should be formed of a hard material that is not damaged by the strong impact force of the game ball as described above. From this point of view, it is conceivable that the surface of the chucker member 120 is made of a plating film. However, even though the plating film is sufficient in terms of hardness, it is usually thin and therefore weak against impact force, and is damaged and peeled off by repeated impact force. In this case, the appearance of the chucker member 120 is deteriorated, and the decoration effect is lowered.

  On the other hand, since the base plate member 110a (particularly, the base plate 111) is in a position where it is difficult to collide with the game ball, it is easy to apply decoration by the plating process.

  Therefore, in the first embodiment, a thermoplastic resin that is difficult to plate is used as the forming material of the chucker member 120 so that the chucker member 120 can exhibit a good decorative effect without using the plating process. PC resin, which is a thermoplastic resin that is harder than ABS resin and hard to be worn by collision of game balls, is used, while the base plate member 110a and the front housing member 110b are As a material for forming the base plate member 110a and the front housing member 110b, an ABS resin (a kind of easily plated thermoplastic resin) that can be easily plated is used so that a better decoration effect can be exhibited by the plating process. It has been adopted.

  Based on such a premise, the chucking member 120 is not plated, but the base plate member 110a and the front housing member 110b are plated.

  As described above, according to the first embodiment, the chucker member 120 is formed by integral molding so as to be integrated with the base plate member 110a and the front housing member 110b. Therefore, an assembly configuration between the chucker member 120 and the base plate member 110a required when the chucker member 120 and the base plate member 110a are separately formed and assembled to each other, the chucker member 120, the base plate member 110a, and An assembly configuration among the chucker member 120, the base plate member 110a, and the front housing member 110b, which is required when the front housing member 110b is separately formed and assembled with each other, is unnecessary, and an extra assembly operation is unnecessary.

  Since the chucker member 120 is integrated with the base plate 111 from directly above, the game ball easily collides with the chucker member 120 instead of the base plate 111. Here, the chucker member 120 is formed of PC resin, and the plating film is not formed on the chucker member 120.

  Therefore, the game ball directly collides with the chucker member 120 made of PC resin from above without passing through the plating film. Therefore, when the game ball repeatedly collides with the upper end portion of the start chucker 120a of the chucker member 120 and the upper edge portion of the left and right curved pieces 120b, the chucker member 120 is hard, but the chucker member 120 is worn at the site due to the collision. It will be done. For example, since the inclined surface portion 123 is formed on the upper edge portion of the left and right curved pieces 120b, the wear state of the inclined surface portion 123 is easily visually recognized by the player.

  However, even if the chucker member 120 is worn in this way, it is only the surface of the PC resin that appears in the worn portion, and the appearance of the chucker member 120 does not cause deterioration such as peeling of the plating film. The chucker member 120 is not changed from the worn state.

  As a result, even if the chucker member 120 is worn, the appearance of the base plate member 110a and the chucker member 120 is reduced so much by both the outer surface of the plating film of the base plate member 110a and the outer surface that appears on the chucker member 120. Can be maintained without.

  Here, as described above, the chucker member 120 includes the left and right side curved pieces 120b in addition to the start chucker 120a, and the left and right side curved pieces 120b extend along the left and right upper edge portions of the base plate 111 from above. It is formed as follows.

  Accordingly, the game balls rolling from the upper side toward the starting prize opening device 100 collide with the left and right curved pieces 120b on both the left and right sides of the start chuck 120a, so that the game balls are on the left and right sides of the base plate 111. There is no direct impact on the edge. As a result, even if the plating film is formed over the front upper corner portion of the base plate 111, this plating film can be maintained without being peeled off due to the collision of the game balls.

  In the first embodiment, as described above, not only the base plate member 110a and the chucker member 120, but also the front housing member 110b is formed by integral molding together with the base plate member 110a and the chucker member 120. Therefore, as compared with the case where the base plate 110a and the front housing member 110b are separately formed and assembled to each other, it is possible to secure a reduction in the number of components of the start winning opening apparatus 100, The assembly structure of the prize opening device 100 and the assembly work are simplified.

According to the above, in the first embodiment, the base is made by devising to maintain the decorative effect of the plating film satisfactorily based on the integral molding that effectively utilizes both the ABS resin and the PC resin. Plate member 110a, chucker member 120 and front housing member 110b and method for manufacturing the same, start winning opening device 100 including the base plate member 110a, chucker member 120 and front housing member 110b, and a pachinko gaming machine including the winning port device 100 Can be provided.
(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS. 20 to 22. In the second embodiment, the chucker member 120 is a base plate member as described in the first embodiment. It is formed on the base plate 111 of 110a by integral molding.

  However, in the second embodiment, the integrally molded component at the boundary between the base plate 111 and the left and right curved pieces 120b of the chucker member 120 is different from the first embodiment as follows. .

  As shown in FIG. 22, the base plate 111 has left and right side notch portions 111d having L-shaped cross sections at the upper left and right edge portions. Of the left and right side cutouts 111d, the right cutout 111d is located on the back side of the right upper edge of the base plate 111 (hereinafter also referred to as the right upper edge 111e), as shown in FIGS. And is cut out in a L-shaped cross section.

  Here, the right notch 111d is between the right end of the right upper edge 111e of the base plate 111 and the right end of the central notch 111c of the base plate 111 at the left inner end 111f. It is formed along the right upper edge portion 111e of the base plate 111 so as to be positioned at the intermediate portion. However, the length from the right end of the right notch 111d to the left inner end 111f makes the boundary surface between the right notch 111d and the right curved piece 120b of the chucker member 120 as wide as possible. As a premise, the length is set to a length suitable for appropriately ensuring the mechanical strength after molding by integral molding between the right notch 111d and the right curved piece 120b.

On the other hand, the left notch 111d is left on the edge of the base plate 111 (hereinafter, also referred to as the left upper edge 111e) are notches formed in its cross-section L-shaped at the rear side portion position (see FIG. 22 ).

  Here, the left notch 111d has a symmetrical shape with respect to the right notch 111d with respect to the center in the left-right direction of the center notch 111c (see FIG. 22) of the base plate 111. It is formed on the left upper edge 111e. The length along the left upper edge 111e of the left notch 111d is based on the premise that the boundary surface between the left notch 111d and the left curved piece 120b of the chucker member 120 is as wide as possible. It is set to a length suitable for appropriately ensuring the mechanical strength after molding by integral molding between the left notch 111d and the left curved piece 120b.

  Further, of the left and right curved pieces 120b of the chucker member 120, the right curved piece 120b has a convex shape with a rectangular cross section as shown in FIG. 21 at its lower edge (hereinafter also referred to as the right lower edge 124). Part 125 (hereinafter also referred to as a right convex part 125), and this right convex part 125 has a cross section toward the right notch part 111 d of the base plate 111 at the back side part of the right lower edge part 124. It is formed to protrude in a rectangular shape. Here, the right convex portion 125 has an outer shape that is joined to the L-shaped inner surface of the right notch 111d on the lower surface and the front surface thereof.

  On the other hand, the lower edge portion of the left curved piece 120b (hereinafter also referred to as the left lower edge portion 124) has a convex portion (corresponding to the right convex portion 125) having a rectangular cross section. , Also referred to as the left convex portion), the left notch portion of the base plate 111 from the left lower edge portion 124 so as to have a symmetrical shape with respect to the right convex portion 125 with respect to the center in the left-right direction of the start chuck 120a. It protrudes toward 111d. Here, the left convex portion has an outer shape that is joined to the L-shaped inner surface of the left notch 111d on the lower surface and the front surface thereof. Other configurations are the same as those in the first embodiment.

  The base plate member 110a and the chucker member 120 having the base plate 111 configured as described above are molded together with the front housing member 110b described in the first embodiment in the same manner as in the first embodiment. By forming the component A by integral molding, the chucker member 120, the base plate member 110a, and the front housing member 110b are integrally molded with each other.

  Here, in the chucker member 120, the right curved portion 120b of the right curved piece 120b is joined to the right notch 111d of the base plate 111 so that the right curved piece 120b is attached to the right lower edge 124 thereof. Thus, it is integrally formed on the right upper edge 111e of the base plate 111. Further, the left curved portion 120b is joined to the left notch portion 111d of the base plate 111 by joining the left convex portion of the left curved piece 120b to the left upper edge of the base plate 111 at the left lower edge portion 124 thereof. It is integrally formed with the edge 111e.

According to this, each joint surface between the lower edge part of the right curved piece 120b and the right upper edge part of the base plate 111 is simply a flat surface with each joint surface between the lower edge part and the right upper edge part. as compared to the case, only the joint surface portion along the front surface (surface) of the base plate 111 between the right bent portion 125 and the right notch 111d, becomes wider. In addition, each joint surface between the lower edge portion of the left curved piece 120b and the left upper edge portion of the base plate 111 is compared with a case where each joint surface between the lower edge portion and the left upper edge portion is simply a flat surface. Te, only joint surface portion along the front surface (surface) of the base plate 111 between the left bent portion and the left notch 111d, becomes wider.

  Therefore, the bonding strength between the lower edge portion of the right curved piece 120b and the right upper edge portion of the base plate 111 after the molding by the integral molding, and the lower edge portion of the left curved piece 120b and the left upper edge of the base plate 111 are formed. The joint strength between the parts can be further enhanced. As a result, the mechanical strength by the integral molding of the chucker member 120 with the base plate 111 can be further improved.

Further, as described above, the right convex portion 125 of the right curved piece 120b is joined into the right notch 111d of the base plate 111, and the left convex portion of the left curved piece 120b is joined to the left notch of the base plate 111. It joins in the part 111d. Therefore, the right protrusion 125 is configured to position the back side of the front portion position of the right protrusion 125 of the right-side upper edge portion 111e of the base plate 111 (front part), the left side of the left bent portion, base plate 111 It is to be positioned on the back side of the upper portion front side position of the left bent portion of 111e (front part).

  For this reason, when the player visually recognizes the base plate 111 from the front side, the right convex portion 125 and the left convex portion are blocked by the front portions of the left and right upper edge portions 111e of the base plate 111 described above. Therefore, the player cannot visually recognize the right convex portion 125 and the left convex portion.

Therefore, the player visually recognizes each plating film portion corresponding to each front portion of the left and right upper edge portions 111e among the plating films M formed on the front surface of the base plate 111 described in the first embodiment. It will be. Therefore, since the left and right curved pieces 120b are made of PC resin, even if the right convex portion 125 and the left convex portion are transparent , the right convex portion 125 and the left convex portion are each of the left and right upper edge portions 111e. it is the it is not visible through the front portion.

  According to the above, the boundary between the left and right curved pieces 120b of the plating film of the base plate 111 is formed cleanly along the joining line between the left and right curved pieces 120b and the base plate 111. As a result, good visibility can be secured when the base plate 111 and the chucker member 120 are viewed from the front.

  As a result, according to the second embodiment, the boundary between the chucker member 120 and the base plate member 110a is obtained while ensuring the mechanical strength by the integral molding between the chucker member 120 and the base plate member 110a. The visibility in can be secured satisfactorily. Other functions and effects are the same as those of the first embodiment.

In carrying out the present invention, the following various modifications are possible without being limited to the above embodiments.
(1) In implementing the present invention, the material for forming the chucker member 120 is not limited to the PC resin, and may be, for example, an acrylic resin, and is generally a thermoplastic resin that is difficult to plate and has good moldability. If it is. Further, the material for forming the base plate member 110a and the front housing member 110b is not limited to the ABS resin, but is a mixture of the ABS resin with the PC resin, polypropylene (PP), polyphenylene oxide (PPO), polysulfone (PS), Any thermoplastic resin with good moldability and good moldability, such as polyacetal (POM) and polyamide (PA) may be used.
(2) In carrying out the present invention, unlike the above embodiments, the plating film M may be formed only on the front surface of the base plate 111. In general, among the outer surfaces of the base plate member 110a, The plating film M may be formed only in a range that is noticeable to the player. (3) In carrying out the present invention, unlike the above embodiments, only the base plate 111 and the start chucker 120a, or Only the base plate 111 and the chucker member 120 may be formed by integral molding.
(4) In carrying out the present invention, unlike the above embodiments, the entire housing 110 and the chucker member 120 may be formed by integral molding. The forming material of the rear housing member 110c is ABS resin, and the housing 110 is configured so that the crank mechanism 150 and the actuator 160 can be assembled.
(5) In carrying out the present invention, unlike the above embodiments, the supply of the molten resin for the first molding site to the mold cavity 230 and the supply of the molten resin for the second molding site to the mold cavity 250 are performed simultaneously. As described above, the first molding site and the second molding site described above may be molded in parallel.

  In this case, unlike the above embodiments, in the mold mounting step S2 (see FIG. 10), the movable mold 220 in FIG. 11 is made to face the fixed mold 240 in FIG. 15, and in the next mold clamping step S3, The movable mold 220 is moved toward the fixed mold 240 to be engaged with the fixed mold 240, and then the mold is clamped. After that, without performing the respective processes of the mold opening process S5 and the mold exchanging process S6. In the molding resin injection process S7 for two molding parts, the first molding part and the second molding part are performed in parallel with the processing in both the melt resin injection process S7 and the first molding part melting resin injection process S4. Are molded in parallel.

It should be noted that both the supply of the first molding part molten resin to the mold cavity 230 and the supply of the second molding part molten resin to the mold cavity 250 are performed in parallel and without excess or deficiency. For example, conditions such as a supply amount of each molten resin per unit time and a supply temperature are set in advance.
(6) In carrying out the present invention, the left and right side cutout portions 111d of the base plate 111 are formed in opposite directions from the left and right side end portions of the central scratched portion 111c of the base plate 111, unlike the second embodiment. You may make it do. Accordingly, the convex portions of the left and right curved pieces 120b of the chucker member 120 may be formed in opposite directions from the left and right side ends of the start chucker 120b.
(7) In carrying out the present invention, the joining structure between the left and right upper edge portions of the base plate 111 described in the second embodiment and the left and right curved pieces of the chucker member 120 is the same as that of the second embodiment. Unlike the above, it is also possible to employ a junction structure having a cross-sectional step shape opposite to each other, such as a cross-sectional step shape opposite to each other.
(8) In carrying out the present invention, unlike the above-described embodiments, the start chucker 120a integrates the U-shaped body 121 with both the U-shaped body 121 and the U-shaped guide path 113 of the front housing member 110b. You may make it comprise. In this case, the U-shaped guide path 113 is separated from the other members of the front housing member 110b, and is formed integrally with the U-shaped body 121 with PC resin.
(9) In implementing the present invention, not limited to the start prize opening device 100, it is generally a prize opening device adopted for the game board Ba of a pachinko gaming machine, and a prize is awarded at a position where the game ball easily collides from above. As long as it is a prize opening device having both a prize opening part having a mouth part and a plate-like prize opening part located immediately below the prize opening part as a panel part structure, this The invention may be applied.

Ba ... game board, 11 ... board surface, 100 ... start winning opening device, 110 ... housing,
110a ... Base plate member, 110b ... Front housing member, 110c ... Rear housing member,
150 ... Crank mechanism, 160 ... Actuator, 111 ... Base plate, 111a ... Opening,
120 ... chucker member, 120a ... start chucker, 121 ... U-shape,
122 ... Front wall.

Claims (2)

In the prize opening device mounted on the game board of the pachinko machine from the board side,
A base plate made of an easily plated thermoplastic resin having an opening that is open so that a game ball can be won toward the front;
The game ball is provided with a winning mouth made of a hard-to-see thermoplastic resin that can be won from above,
The winning body is formed integrally with the base plate so as to be joined on the base plate so as to enable the winning of a game ball from above.
A plating film is formed on at least a surface portion of the base plate that is visible from the player ,
The winning opening body is formed in a L-shaped cross section at the front side portion and the convex portion so as to have a convex portion protruding downward from the back side portion of the front side portion and the back side portion of the lower edge portion. And
The base plate is notched downward so as to be L-shaped in cross section with the front side part of the upper edge part at the back side part of the upper edge part, and forms a notch part.
The convex portion of the winning opening body is joined into the notch portion of the base plate, and the front side portion of the lower edge portion of the winning mouth portion is placed on the front side portion of the upper edge portion of the base plate. winning hole device for a pachinko game machine which is characterized that you have to be joined to. The winning opening body includes a winning opening and a left-side extending piece made of a flame-resistant thermoplastic resin integrally extending from the left side of the winning opening to the left along the left upper edge of the base plate, comprises a said winning opening or al integrally the base plate flame plating thermoplastic resin right extending portion extending to along the right on the right side on the edge of,
The left extending portion and the right extension piece, respectively, so as to have a protrusion protruding from the rear side portions downwardly out of the front portion and rear portion of the lower edge, the front portion and the convex portion Are formed in a cross-sectional L-shape, and are joined to the notches of the base plate at the convex portions thereof, and the lower edge portions of the left extension piece and the right extension piece are formed. winning hole device for a pachinko game machine according to claim 1, characterized that you have to be joined to the front portion on the front side portion of the upper edge of the base plate.

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