JP4327835B2 - Bullet ball machine - Google Patents

Description

  The present invention relates to a ball game machine such as a pachinko machine, an arrangement ball machine, and a sparrow ball game machine, and particularly to an outer frame thereof.

  2. Description of the Related Art Conventionally, a ball game machine such as a pachinko machine is one in which a front plate cover made of a synthetic resin is attached to a front plate at a lower front side of an outer frame, as described in JP-A-11-244494. . This outer frame is composed of wood such as plywood, and is assembled in a rectangular frame shape by a pair of vertical plates facing left and right and a pair of horizontal plates facing vertically, and the outer frame is placed on the front side at the lower end side of the left and right vertical plates. The front plate is fixed over both. Also, on the left side of the outer frame, a front frame on which a game board or the like is mounted is mounted so as to be openable and closable around a vertical axis through upper and lower hinges.

  The front plate cover is integrally formed with engagement portions on the left and right sides of the back side thereof, and the engagement portions are inserted into engagement holes formed in the front plate and engaged with the front plate. It is detachably mounted on the front side of the front plate. The engaging part is constituted by a band plate part that can be elastically deformed in the vertical direction and an engaging projection part provided on the upper surface side of the band plate part. In addition, the engagement hole portion is configured by a front-viewing quadrangular through hole that penetrates the front plate back and forth, and when the engagement portion is inserted into the engagement hole portion, the engagement protrusion portion is It is adapted to be engaged with the upper edge of the back side.

  In the conventional front plate cover mounting structure, there is a gap between the inner upper wall surface of the engagement hole portion of the front plate and the upper surface of the band plate portion of the engagement portion of the front plate cover. The front plate cover with respect to the backlash in the up and down direction cannot be fixed. If the upper end of the front plate cover is brought into contact with a friction prevention member attached to the upper end of the front plate to prevent interference between the front plate and the front frame, the front plate cover will not rattle in the vertical direction. Can be prevented.

  However, in this conventional structure, in order to prevent backlash in the vertical direction of the front plate cover with respect to the front plate, it is necessary to separately provide another member for positioning on the upper side of the front plate. There is a problem that the installation work becomes complicated.

  In view of such conventional problems, the present invention can position the front plate cover with respect to the front plate regardless of the presence or absence of the upper and lower members of the front plate, and can easily mount the front plate cover with a simple structure. The purpose is to provide a machine.

The present invention includes an outer frame 2 and a front frame 5 that is attached to the outer frame 2 via a pair of upper and lower hinges 3 and 4 so as to be openable and closable around a longitudinal axis and is provided with a game board 8. In the ball game machine, the outer frame 2 spans a pair of vertical plates 32 opposed to the left and right, a pair of horizontal plates 33 opposed to the upper and lower sides, and a front side of the lower end side of the left and right vertical plates 32. And a synthetic resin front plate cover 35 detachably mounted on the front side of the front plate 34. The front plate 34 has a positioning hole 38 and an engagement hole 39. Sorted a plurality formed in the lateral direction, the front plate cover 35 and the front plate portion 45 which covers substantially the whole surface of the front plate 34 from the front side, the front protruded towards rear upper edge or et of the front surface plate portion 45 The front plate 3 is bent rearward from the left and right ends of the front plate 45 and the upper cover 46 in the left-right direction covering the plate 34 from above. The a lateral cover portion 47 for covering the left and right sides, together with the lower plate portion 48 of the left-right direction from the lower end bent backward is inserted into the lower end side of the insertion portion 54 of the front plate 34 of the front plate portion 45 A plurality of lateral reinforcing ribs 50 arranged in the left-right direction at substantially the center in the up-down direction and abutting against the front plate 34, and arranged at a predetermined interval in the left-right direction, on the back side of the front plate portion 45, and A vertical reinforcing rib 50 that abuts against the front plate 34 is integrally formed, and a plurality of positioning projections 40 that are press-fitted into the respective positioning hole portions 38 from the front side on the back side of the front plate portion 45, and the respective engagement members. the engagement hole 39 is inserted from the front and a plurality of engaging portions 41 for engaging the front Kiyoko reinforcing ribs 50 projecting rearward is integrally formed, the lower plate portion 48 each engaging portion 41 The front plate portion 45 is provided on substantially the entire length in the left-right direction except for the portion corresponding to It is what is.

In the present invention, it can position the front plate cover 35 to the front plate 34 regardless of the upper and lower members of the front plate 34 can be easily mounted front plate cover 35 with a simple structure.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 9 show a first embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a gaming machine main body, a rectangular frame-shaped outer frame 2 and upper and lower hinges 3 on the left side of the outer frame 2. 4 and a front frame 5 pivotally attached to be freely opened and closed via 4. A glass door 6 and a front plate 7 are attached to the front frame 5, and a game board 8 is detachably attached to the back side thereof.

  The front plate 7 is equipped with an upper plate 9 for storing a game ball for launch. A lower plate 10 for storing surplus spheres is attached to the lower part of the front frame 5, and a firing handle 12 of the firing means 11 is disposed on the side of the lower plate 10. The launching means 11 is provided with a striking rod that is driven when the firing handle 12 is operated, so that game balls supplied one by one on the firing rail are hit with the striking rod and fired toward the game board 8 side. It has become.

  A guide rail 13 for guiding a game ball launched from the launching means 11 is annularly mounted on the front surface of the game board 8, and the liquid crystal display means 15 and the first symbol start in the game area 14 inside the guide rail 13. A plurality of game parts such as means 16, variable winning means 17, second symbol starting means 18, and normal winning means 19 are mounted.

  As shown in FIG. 2, a back mechanism plate 20 that presses the game board 8 from the back side is attached to the back side of the front frame 5 so as to be freely opened and closed. An opening 21 is formed in the back mechanism plate 20, a game ball tank 22 and a tank rail 23 are provided on the upper side thereof, a ball payout means 24 is provided on one side in the left-right direction, and a passage unit 25 is provided on the lower side. .

  A back cover 26 mounted on the back side of the game board 8 is fitted into the opening 21. The back cover 26 covers the game parts such as the liquid crystal display means 15, the first symbol starting means 16, and the variable winning means 17 mounted on the game board 8 from the back side, and is detachably fixed to the game board 8. Has been. The back cover 26 is detachably mounted with substrate cases 27 to 29 containing various control boards such as a main control board. Substrate cases 30 and 31 containing various control boards are attached to the back mechanism plate 20 near the lower side. It is attached detachably.

  As shown in FIGS. 3 to 5, the outer frame 2 has a pair of vertical plates 32 opposed to the left and right, a pair of horizontal plates 33 opposed to the upper and lower sides, and a front side at the lower end side of the left and right vertical plates 32. A front plate 34 is provided across the front plate 34, and a front plate cover 35 is detachably mounted on the front side of the front plate 34. On the left side of the outer frame 2, hinge plates 36 and 37 of the hinges 3 and 4 are fixed vertically. The hinges 3 and 4 include hinge plates 36 and 37 on the outer frame 2 side and hinge plates 36a and 37a on the front frame 5 side.

  The front plate 34 is formed with a plurality of positioning hole portions 38 and engagement hole portions 39 formed by through holes penetrating the front plate 34 in the front-rear direction, and corresponds to the positioning hole portions 38 and the engagement hole portions 39. A positioning projection 40 and an engagement portion 41 projecting rearward are provided integrally with the front plate cover 35 on the back side of the front plate cover 35, and the positioning hole 38, the positioning projection 40, and the engagement are provided. The front plate cover 35 is positioned and locked to the front plate 34 by the hole 39 and the engaging portion 41.

  The vertical plate 32 and the horizontal plate 33 are made of wood such as a strip-like laminated plywood, and are combined in a vertically long rectangular frame shape, and their corresponding ends are detachably fixed by tapping screws 42 or the like. The lower horizontal plate 33 protrudes forward from the pair of vertical plates 32 and the upper horizontal plate 33, and the front end side of the front protruding portion 33a is formed in an arc shape in a side view.

  The front plate 34 is formed of a horizontally long strip-like laminated plywood, and the width of the left and right sides is slightly smaller than the size between the left and right outer ends of the left and right vertical plates 32 as will be described later. The lower surface of the front plate 34 is in contact with the upper surface of the front protrusion 33a of the horizontal plate 33, and the rear surfaces of both left and right ends are in contact with the front surfaces on the lower ends of the left and right vertical plates 32, respectively. It is fixed to the vertical plate 32 by a tapping screw 42 or the like inserted therethrough.

  The grain of the front surface of the front plate 34 is configured so that the left and right ends correspond to the horizontal phase and the other central portion in the horizontal direction corresponds to the vertical phase corresponding to the part through which the tapping screw 42 is inserted. The right and left sides on the front side of the front plate 34 are prevented from tearing along the grain. That is, as shown in FIG. 6, the front plate 34 includes a front plate main component 34a having a longitudinal grain on the front surface and a front plate sub-component 34b having a horizontal phase grain on the front surface. A notch 43 is formed on both the left and right ends of the component 34a by cutting out the front side by about half of its thickness. The front plate sub-component 34b is fixed to the notch 43 by an adhesive or the like. Thus, a band plate-like front plate 34 is configured.

  A reinforcing material 44 is provided at the inner corners of the vertical plate 32, the horizontal plate 33, and the front plate 34 on the left and right ends of the lower end side of the outer frame 2, and the vertical plate 32 and the horizontal plate 33 are provided by the reinforcing material 44. And the fixed part of the front plate 34 is reinforced from the inside.

  The front plate cover 35 is made of synthetic resin such as ABS resin, and is mounted so as to cover substantially the entire front plate 34 from the front side. The front plate cover 35 is a horizontally long front plate portion 45 having a substantially rectangular shape, a front plate upper cover portion 46 that protrudes rearward from the upper end of the front plate portion 45, and a rearward projection from the left and right ends of the front plate portion 45. A front plate side cover portion 47 and a lower plate portion 48 projecting rearward from the lower end of the front plate portion 45 are integrally provided, and the front plate portion 45, the front plate upper cover portion 46, the front plate side cover portion 47 and the lower plate portion are provided. The front plate 34 is fitted in a space formed inside the plate portion 48. The front plate portion 45, the front plate upper cover portion 46, the front plate side cover portion 47, and the lower plate portion 48 are formed to have substantially the same thickness.

  As shown in FIGS. 4 to 7, the front plate portion 45 of the front plate cover 35 is on the upper side and the left and right sides of the front plate 34 at least by the thickness dimension of the front plate upper cover portion 46 and the front plate side cover portion 47. It is configured to be a large horizontally long substantially quadrangular shape. A recessed portion 49 is formed on the lower side of the front plate portion 45 so as to be recessed on the rear side over substantially the entire length excluding the left and right ends. In addition, longitudinal and lateral reinforcing ribs 50 projecting rearward are integrally formed on the rear surface of the front plate portion 45 over substantially the entire length in the vertical and horizontal directions, and the rear end surface of the reinforcing rib 50 is the front plate. 34 is in contact with the front surface. A plurality of longitudinal reinforcing ribs 50 are provided in the left-right direction, and one reinforcing rib 50 in the lateral direction is provided approximately at the center of the front plate portion 45 in the vertical direction.

  The front plate upper cover portion 46 of the front plate cover 35 is formed on the upper end side of the front plate portion 45 so as to protrude substantially horizontally rearward as shown in FIGS. 4, 5, and 7. The plate 34 is covered from the upper side while being in contact with or close to the upper surface thereof. Further, the hinge plate 37 of the lower hinge 4 is fixed to the outer frame 2 from the inner side across the upper surface of the front plate 34 and the inner surface of the left vertical plate 32, and the front of the hinge plate 37 corresponds to the hinge plate 37. A notch 51 is formed on the left side of the plate upper cover 46. That is, on the left side of the front plate portion 45, a step portion 52 whose upper edge is lower than the other portions by the thickness of the front plate upper cover portion 46 corresponding to the hinge plate 37 is formed. On the upper end side of the stepped portion 52, the front plate upper cover portion 46 is not formed. A reinforcing rib 50a that protrudes rearward is formed on the upper end side of the stepped portion 52, and the rear end surface of the reinforcing rib 50a is in contact with the front surface of the front plate 34.

  The front plate upper cover portion 46 protrudes rearward from the rear end of the front plate 34 by a dimension that is substantially the same as or slightly larger than its thickness dimension, and extends substantially along the left-right direction at the rear end portion of the rear protrusion 46a. A standing wall portion 53 protruding upward is integrally formed. The standing wall portion 53 has a thickness that is substantially the same as or slightly thinner than the front plate upper cover portion 46, and protrudes upward from the upper surface of the front plate upper cover portion 46 so as to be slightly larger than the thickness. Further, the rear projection 46 a and the standing wall portion 53 are not provided in the portion corresponding to the vertical plate 32 on the right end side of the front plate upper cover portion 46, and the rear end surface of the front plate upper cover portion 46 is the vertical plate 32. It is in contact with the front surface.

  As shown in FIG. 7, the standing wall portion 53 is provided corresponding to the lower end portion of the front frame 5 so as to block the gap between the lower surface of the front frame 5 and the upper surface of the front plate upper cover portion 46 at the rear. ing. The front surface of the standing wall portion 53 is disposed behind the rear surface of the closed front frame 5 so that the standing wall portion 53 and the front frame 5 do not come into contact with each other.

  As shown in FIGS. 4 to 6, the front plate side cover portion 47 of the front plate cover 35 is formed so as to protrude rearward at substantially the entire length in the vertical direction on the left and right ends of the front plate portion 45. 34 is covered from the lateral side in contact with or close to both side surfaces, and the rear end surface is in contact with the front surface of the vertical plate 32. The left and right end edges of the front plate 34 are inside the left and right outer end edges of the vertical plate 32 by the thickness of the front plate horizontal cover portion 47, and the outer surface of the front plate horizontal cover portion 47 and the outer surface of the vertical plate 32 are Is substantially flush. Further, the right front plate lateral cover portion 47 is formed so as to be continuous with the right end of the front plate upper cover portion 46 at its upper end.

  As shown in FIGS. 5 to 7, the lower plate portion 48 of the front plate cover 35 is formed on the lower end side of the front plate portion 45 so as to protrude rearward. It is about half. Further, the lower plate portion 48 is not provided between portions corresponding to the engaging portions 41, that is, between the vertical reinforcing ribs 50 adjacent to the left and right of each engaging portion 41. On the other hand, on the front side of the lower end side of the front plate 34, as shown in FIGS. 4 and 7, an insertion portion 54 that is cut out corresponding to the thickness and the protruding amount of the lower plate portion 48 is formed over the entire length in the left-right direction. The lower plate portion 48 is inserted into the insertion portion 54 with being in contact with or close to the upper surface of the lower horizontal plate 33. The lower plate portion 48 on the right end side and the left end side is formed so as to be continuous with the lower end of the front plate side cover portion 47 at the right end and the left end.

  As shown in FIGS. 5, 6, 8, and 9, the positioning protrusions 40 are arranged so that the front plate protrudes substantially horizontally rearward on the left and right ends of the back side of the front plate 45 of the front plate cover 35. It is molded integrally with the cover 35, and the protruding amount is smaller than the thickness of the front plate 34. A plurality of positioning protrusions 40 are formed in a circumferential direction formed on the outer periphery of the core portion 55 at substantially equal intervals in the circumferential direction, such as a substantially cylindrical core portion 55 and a cross shape formed on the upper and lower sides and the left and right sides thereof. The positioning ribs 56 are integrally provided, and the rear end side of each positioning rib 56 is configured to be tapered toward the core portion 55.

  Further, the positioning protrusion 40 is disposed substantially at the center in the vertical direction of the front plate portion 45 in correspondence with the horizontal reinforcing rib 50 of the front plate portion 45, and is formed in substantially the same thickness. The upper surface and the lower surface of 50 and the left and right positioning ribs 56 are formed on the same surface.

  As shown in FIGS. 4 and 6, the positioning hole 38 penetrates the front plate 34 in the front-rear direction at a position corresponding to the positioning protrusion 40 of the front plate cover 35, and the inner peripheral surface is substantially the same over the entire length in the front-rear direction. It is comprised by the through-hole formed in the substantially circular shape of a diameter. The inner diameter of the positioning hole 38 is slightly smaller than the vertical and horizontal dimensions on the front side (base side) of the positioning protrusion 40, and the front plate is formed by press-fitting the positioning protrusion 40 into the positioning hole 38. 34, the front plate cover 35 is positioned vertically and horizontally. Further, the positioning protrusion 40 and the positioning hole 38 are arranged at positions where at least a part thereof overlaps with the left and right vertical plates 32 in the left-right direction. The positioning protrusion 40 and the positioning hole 38 may be disposed in the vicinity of the vertical plate 32.

  As shown in FIG. 5 to FIG. 9, a plurality of engagement portions 41 are provided on the back side of the front plate portion 45 of the front plate cover 35, for example, three on the left and right sides and in the middle thereof, The front plate cover 35 is formed integrally with the front plate 34 so as to protrude rearward from the rear end of the front plate 34 by about half the thickness of the front plate 34. The left and right engaging portions 41 are disposed on the inner side in the left-right direction than the positioning protrusions 40 on the left and right ends. The engaging portion 41 includes a strip-like strip plate portion 57 that is elastically deformable in the vertical direction on the front side, and an engaging projection portion 58 that protrudes downward in a substantially triangular shape in a side view on the rear end side. It is provided in one piece and configured in a claw shape.

  On the upper side of the engaging portion 41 (opposite to the protruding direction of the engaging projection portion 58) is a protective portion 59 that is configured in a substantially cylindrical shape in the front-rear direction and has a radius larger than the left-right width of the engaging portion 41. Molded integrally with the plate cover 35. A recessed portion 60 having a substantially quadrangular shape in plan view is formed on the lower rear side of the protective portion 59, and the engaging portion 41 protrudes integrally into the recessed portion 60 from the front base portion of the protective portion 59. The engaging portion 41 is protected from the upper side by the protective portion 59. Further, the engaging portion 41 and the protection portion 59 are arranged so that the protection portion 59 is located at the approximate center in the vertical direction of the front plate cover 35. The rear ends of the engaging portion 41 and the protective portion 59 are substantially flush.

  As shown in FIGS. 4, 6, and 7, the engagement hole portion 39 is configured by a through hole that penetrates the front plate 34 forward and backward at a position corresponding to the engagement portion 41 and the protection portion 59 of the front plate cover 35. Has been. The engagement hole 39 is formed in a substantially circular shape corresponding to the shape of the protection part 59, and a guide groove 39a is formed on the lower side so as to protrude downward in a substantially square shape. Have the same cross-sectional shape. The guide groove 39a has substantially the same left-right width as the engagement protrusion 58 of the engagement portion 41. When the engagement portion 41 is inserted, the engagement protrusion 58 abuts on the inner and lower surfaces and the band plate portion 57 faces upward. The depth is such that it is elastically deformed.

  As shown in FIG. 7, the engaging protrusion 58 of the engaging portion 41 is provided so that the front end thereof corresponds to the rear end of the front plate 34. That is, the dimension from the rear end of the reinforcing rib 50 of the front plate portion 45 of the front plate cover 35 to the rear end of the band plate portion 57 of the engaging portion 41 (the front end of the engaging projection portion 58), the thickness of the front plate 34, Are almost the same. Then, the band plate portion 57 of the engagement portion 41 substantially contacts the inner and lower surfaces of the guide groove 39 a of the engagement hole portion 39, and the engagement projection portion 58 is engaged with the back surface of the front plate 34 below the engagement hole portion 39. It has been stopped. In addition, the inner diameters of the circular portions on the upper side and the lateral side of the engagement hole 39 are slightly larger than the outer diameter of the protection part 59, and there is a gap between the protection part 59 and the inner wall surface of the engagement hole part 39. Is formed.

  When the front plate cover 35 having the above-described configuration is attached to the front plate 34, the front frame 5 is opened around the vertical axis of the hinges 3 and 4, or the front frame 5 is removed from the outer frame 2. The positioning protrusions 40, the engaging portions 41, and the protection portions 59 of the front plate cover 35 are inserted into the positioning hole portions 38 and the engaging hole portions 39 of the front plate 34. At this time, the rear end side of the positioning protrusion 40 is formed in a tapered shape, and the upper side and the lateral side of the engagement hole 39 are configured to be larger than the protection part 59, so that they can be easily inserted.

  Next, the position corresponding to the positioning protrusion 40 of the front plate cover 35 is pressed from the front side until the rear end of the reinforcing rib 50 on the back surface of the front plate portion 45 contacts the front surface of the front plate 34. Is press-fitted into the positioning hole 38. At this time, since the positioning projection 40 and the positioning hole 38 are formed at positions where part of them overlaps with the left and right vertical plates 32, the front plate 34 is rearward even though a force is applied rearward to the front plate 34. Therefore, the positioning protrusion 40 and the engaging portion 41 can be reliably inserted into the positioning hole 38 and the engaging hole 39.

  Further, as the positioning protrusion 40 is inserted into the positioning hole 38, the engaging portion 41 and the protection portion 59 are inserted into the engaging hole 39. At this time, the engagement protrusion 58 of the engagement portion 41 is guided by the inner and lower surfaces of the guide groove 39a of the engagement hole 39, and the band plate portion 57 moves backward while elastically deforming upward. When the engaging protrusion 58 of the portion 41 protrudes completely rearward from the rear end of the front plate 34, the band plate portion 57 returns to the original substantially horizontal shape and the engaging protrusion 58 is on the back surface of the front plate 34. The front plate cover 35 is engaged with the front plate 34 by the engagement portion 41 and the engagement hole 39. The front plate cover 35 is reliably positioned in the vertical and horizontal directions on the front plate 34 by the positioning hole 38 and the positioning protrusion 40.

  When the front plate cover 35 is removed from the front plate 34, the engagement protrusion 41 and the protection portion 59 of the engagement portion 41 of the front plate cover 35 are pinched with fingers or the like on the back side of the front plate 34. It is only necessary to elastically deform the belt plate portion 57 upward to release the engagement with the front plate 34 and to pull out the front plate cover 35 to the front side. The front plate cover 35 can be easily removed from the front plate 34. it can.

  Since the front plate cover 35 is detachable as described above, for example, when the front plate cover 35 is changed to another design, the work can be easily and quickly performed. Further, even after the old outer frame 2 is removed, the vertical board 32, the horizontal board 33 and the front board 34 of the wood and the front board cover 35 of the synthetic resin can be easily separated, and the respective recycling can be promoted.

  This ball game machine is provided with a plurality of positioning hole portions 38 and engaging hole portions 39 in the front plate 34 of the outer frame 2, and positioning protrusions 40 corresponding to the positioning hole portions 38 and the engaging hole portions 39, respectively. Since the engaging portion 41 is provided integrally with the front plate cover 35 made of a synthetic resin that is detachably attached to the front plate 34, the front plate with respect to the front plate 34 regardless of the presence or absence of the upper and lower members of the front plate 34. The cover 35 can be positioned, and the front plate cover 35 can be easily mounted with a simple structure.

  Since the positioning hole 38 and the engagement hole 39 are formed by through holes that penetrate the front plate 34, the positioning hole 38 and the engagement hole 39 can be easily formed. In particular, since the positioning hole 38 and the engagement hole 39 are configured to have substantially the same cross-sectional shape over the entire length in the front-rear direction, the positioning hole 38 and the engagement hole 39 can be formed more easily.

  Since the front plate cover 35 is provided with a front plate upper cover portion 46 that covers the upper side of the front plate 34, and the standing wall portion 53 corresponding to the lower end portion of the front frame 5 is provided on the rear side of the front plate upper cover portion 46. It is possible to prevent an illegal act by inserting a thin plate or the like through a gap between the front frame 5 and the front plate 34 with a simple structure. Further, the front plate cover 35 is provided with the front plate upper cover portion 46 and the front plate side cover portion 47, thereby preventing the front plate cover 35 from being bent and increasing its strength.

  The hinge plates 36 and 37 of the hinges 3 and 4 pivotally attached to the front frame 5 are attached to the left side of the outer frame 2, and the left side of the front plate upper cover portion 46 is cut out corresponding to the hinge plate 37 of the lower hinge 4. Since the portion 51 is formed, the interference between the front plate upper cover portion 46 and the hinge plate 37 can be prevented, and the hinge plate 37 can be fixed to the upper surface of the front plate 34 as in the prior art.

  Since the engaging portion 41 of the front plate cover 35 has a claw-like structure, the front plate cover 35 can be reliably locked to the front plate 34 with a simple structure. In addition, since the protective portion 59 that protects the engaging portion 41 is provided on the upper side of the engaging portion 41, the possibility of damage of the engaging portion 41 can be reduced. Furthermore, the engagement between the engagement portion 41 and the back surface of the front plate 34 can be easily released by pinching the engagement portion 41 and the protection portion 59 with a finger or the like.

  10 and 11 illustrate a second embodiment of the present invention. In this embodiment, the positioning hole 38 and the engaging hole 39, and the positioning protrusion 40 and the engaging part 41 are integrally formed. As shown in FIG. 10, the engaging portion 41 is integrally provided with a protective portion 59 on the upper side thereof as in the first embodiment. The positioning protrusion 40 includes a protection part 59 and positioning ribs 56 protruding from the left and right sides. The positioning rib 56 is formed over substantially the entire length of the protection portion 59 in the front-rear direction, and its rear end side is inclined toward the protection portion 59 and is tapered. Further, the thickness of the positioning rib 56 is substantially the same as the thickness of the lateral reinforcing rib 50 of the front plate portion 45, and the upper and lower surfaces of the positioning rib 56 and the lateral reinforcing rib 50 are configured to be the same surface. ing.

  On the other hand, as shown in FIG. 11, the front plate 34 has a substantially circular shape that serves as both the positioning hole 38 and the engaging hole 39 corresponding to the positioning protrusion 40 and the engaging portion 41 that are integrally formed. A through hole 61 is formed. In addition, the dimension in the left-right direction of the through hole 61 is slightly smaller than the dimension between the left and right ends on the front side of the left and right positioning ribs 56. By pressing the positioning protrusion 40 into the through hole 61, A front plate cover 35 is positioned on the front plate 34 in the vertical and horizontal directions. The through holes 61 are formed on the left and right ends of the front plate 34 in the vicinity of the inner side of the reinforcing member 44 on the left and right ends of the outer frame 2 so that the front plate 34 does not bend during press-fitting.

  In the second embodiment, substantially the same effect as that of the first embodiment can be obtained, and the configurations of the front plate cover 35 and the front plate 34 can be simplified. For example, the number of protrusions 40 and 41 protruding rearward from the front plate portion 45 of the front plate cover 35 is reduced, and the structure of the mold used for molding the front plate cover 35 is simplified. . Further, the number of holes 38 and 39 penetrating the front plate 34 is reduced, the processing of the front plate 34 is simplified, and the strength of the front plate 34 is increased. Further, since the positioning rib 56 is provided integrally with the protective part 59 on the upper side of the engaging part 41, the strength of the protective part 59 is increased.

  As mentioned above, although each embodiment of this invention was explained in full detail, this invention is not restricted to each embodiment, A various change is possible. For example, the front plate upper cover portion 46, the front plate side cover portion 47, and the lower plate portion 48 of the front plate cover 35 are not necessarily provided. That is, the front plate cover 35 only needs to cover the front plate 34 at least from the front side and integrally include the positioning protrusion 40 and the engaging portion 41.

  The arrangement and the number of the positioning hole 38 and the positioning protrusion 40, and the engaging hole 39 and the engaging portion 41 can be changed as appropriate. For example, one or a plurality of engagement holes 39 and engagement portions 41 may be provided, and the number is not limited to the three in the embodiment. One or more positioning holes 38 and positioning protrusions 40 may be provided, and the number is not limited to two in the embodiment. Further, a plurality of positioning holes 38 and positioning protrusions 40, and a plurality of engaging holes 39 and engaging portions 41 can be provided on the upper and lower sides as well as on the left and right as in the embodiment.

  Further, in the first embodiment, the positioning hole 38 and the positioning protrusion 40 are formed at a position where a part of the positioning hole 38 and the positioning protrusion 40 overlap with the left and right vertical plates 32, but are not necessarily overlapped with the left and right vertical plates 32. It does not have to be formed. In that case, when the front plate cover 35 is attached to the front plate 34, the rear end side of the positioning protrusion 40 may protrude rearward from the rear end of the front plate 34. In order to prevent the bending of the front plate 34 during press-fitting, it is desirable that the positioning hole 38 and the positioning projection 40 and the left and right vertical plates 32 be as close as possible in the left-right direction.

  The shapes of the positioning protrusion 40 and the engaging portion 41 are not limited to the embodiments. For example, the positioning protrusion 40 may be formed by tapering the core 55 without providing the positioning rib 56. That is, if the positioning projection 40 and the engagement portion 41 can position and engage the front plate cover 35 with the front plate 34 via the positioning hole 38 and the engagement hole 39 on the front plate 34 side, The shape may be changed as appropriate. In addition to the downward direction, the engaging protrusion 58 of the engaging portion 41 is configured to protrude upward, laterally, etc., and engage with the back surface of the front plate 34 on the upper side, lateral side, etc. of the engaging hole 39. The direction in which the belt plate portion 57 can be elastically deformed may be appropriately changed in accordance with the protruding direction. In that case, the protection part 59 should just be provided so that the engaging part 41 may be covered from the opposite side to the protrusion direction of the engaging protrusion part 58. FIG. Note that the shape of the protection unit 59 may be changed as appropriate, or may not necessarily be provided.

  In the embodiment, the standing wall portion 53 is provided on the rear end side of the front plate upper cover portion 46 of the front plate cover 35, but the standing wall portion 53 is located on the rear side of the front plate upper cover portion 46 on the lower end portion of the front frame 5. It is sufficient if it is provided so as to correspond to the above, and it is not necessary to be on the rear end side as long as it is on the rear side of the front plate upper cover portion 46. In the embodiment, the outer frame 2 and the front frame 5 are made of wood such as laminated plywood, but may be made of a synthetic resin material or the like. The vertical plate 32, the horizontal plate 33, and the front plate 34 of the outer frame 2 are fixed by tapping screws 42, but may be fixed by other screws, nails, bolts / nuts, or the like.

  In addition, the present invention is not limited to pachinko machines and can be similarly implemented in various ball game machines such as an arrangement ball and a sparrow ball game machine.

1 is a front view of a ball game machine showing a first embodiment of the present invention. 1 is a rear view of a ball game machine showing a first embodiment of the present invention. 1 is a side view of a ball game machine showing a first embodiment of the present invention. It is a perspective view of the outer frame which shows the 1st Embodiment of this invention. It is sectional drawing and the front view of the front board cover 35 which show the 1st Embodiment of this invention. It is sectional drawing of the principal part which shows the 1st Embodiment of this invention. It is sectional drawing of the principal part which shows the 1st Embodiment of this invention. It is a rear view of the principal part which shows the 1st Embodiment of this invention. It is a perspective view of the principal part which shows the 1st Embodiment of this invention. It is a perspective view of the principal part which shows the 2nd Embodiment of this invention. It is a rear view of the principal part which shows the 2nd Embodiment of this invention.

Explanation of symbols

2 Outer frame 3 Hinge 4 Hinge 5 Front frame 8 Game board 32 Vertical plate 33 Horizontal plate 34 Front plate 35 Front plate cover 36 Hinge plate 37 Hinge plate 38 Positioning hole 39 Engaging hole 40 Positioning protrusion 41 Engaging portion 46 Front plate upper cover part 51 Notch part 53 Standing wall part

Claims (1)

An outer frame (2), and a front frame (8) attached to the outer frame (2) through a pair of upper and lower hinges (3) and (4) so as to be openable and closable around a longitudinal axis. 5) and a ball game machine equipped with
The outer frame (2) has a pair of vertical plates (32) opposed to the left and right, a pair of horizontal plates (33) opposed to the upper and lower sides, and a front side of the lower end side of the left and right vertical plates (32). A straddling front plate (34) and a synthetic resin front plate cover (35) removably attached to the front side of the front plate (34);
A plurality of positioning holes (38) and engagement holes (39) are formed in the left-right direction in the front plate (34),
Substantially front plate portion which covers the entire surface from the front side (45), the front plate and projects towards the back upper edge or et of the front face plate portion (45) of the front plate cover (35) the front plate (34) ( 34) from the upper side in the left-right direction, and a horizontal cover part (47) bent rearward from the left and right ends of the front plate part (45) to cover the front plate (34) from the left and right sides. And a lower plate portion (48) in the left-right direction that is bent backward from the lower end of the front plate portion (45) and inserted into the insertion portion (54) on the lower end side of the front plate (34). ,
A plurality of lateral reinforcing ribs (50) disposed in the left-right direction at substantially the center in the vertical direction on the back side of the front plate portion (45), and abutting against the front plate (34), with a predetermined interval in the left-right direction. A vertical reinforcing rib (50) disposed and abutting against the front plate (34) is integrally formed;
On the back side of the front plate portion (45), each positioning hole and the plurality of positioning projections that are press-fitted from the front side (38) (40) is inserted from the front side to the engaging hole (39) integrally formed a plurality of engaging portions for engaging the (41) and the front Kiyoko reinforcing rib (50) projecting rearwardly Te,
The lower ball portion (48) is provided at substantially the entire length in the left-right direction of the front plate portion (45) except for portions corresponding to the respective engaging portions (41) .

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