JPH0440691Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

This invention relates to a ball firing mechanism in an electric game machine that plays a game by firing balls using a motor or the like.

[Conventional technology]

In a conventional electric game machine, as shown in Utility Model Application No. 57-79577, which was previously proposed by the present applicant, a hammer arm 7, a deceleration motor 16, and a biasing force constituting a ball firing mechanism are mounted on a mounting board 4. The hammer arm spring 8 and the ball hitting force adjustment spring 9 are collectively provided, and the mounting board 4 is fixed in correspondence with the back side of the window hole 22 formed in the front frame 2. An operating handle mounting plate 26 on which a ball-hitting force adjustment lever 20 is provided is fixed in correspondence with the front surface of the window hole 22, and rotation of the ball-hitting force adjustment lever 20 is controlled by a base plate 23 fixed to the front frame 2. Fixed small gear 24 and large gear 2
5 to the ball firing mechanism to adjust the ball hitting force.

[Problem that the idea aims to solve]

Therefore, in the above-mentioned conventional batted ball firing device, it is possible to reduce the assembly space and improve the assembly precision between the parts constituting the batted ball firing mechanism to some extent, but for example, the hammer arm 7
Since the hammer arm spring 8, which is the main body that applies the biasing force, still uses an elongated coil spring 8, it is necessary to prepare a relatively large mounting board 4. Further, after fixing the mounting board 4 in a corresponding manner to the window hole 22 of the front frame 2, the large gear 25 and the ball firing mechanism are connected by the ball hitting force adjustment spring 9, and then the operation handle mounting plate 26 is inserted from the front. There was a problem that the mounting work to the front frame 2 was troublesome because it had to be fixed. This idea was created in view of the above-mentioned problems, and its purpose is to further reduce the installation space on the back of the front frame, and to create an electric game machine that can be assembled to the front frame extremely easily. The object of the present invention is to provide a ball firing mechanism for

[Means to solve the problem]

In order to achieve the above-mentioned object, the ball firing mechanism according to this invention also includes an operation handle cover body with a vacant chamber formed on the front side of the front frame so as to cover the window hole formed at the bottom of the front frame. A mounting board for the batted ball launcher is attached to the back side, and the empty space of the operating handle cover body is connected to the window hole to form an operating space by the operating handle cover body and the mounting board,
The operation handle cover body has an operation handle that can be operated by a player protruding from the front side thereof, and a first transmission member that interlocks with the operation handle and has an engagement portion formed therein in the empty space on the rear side. is,
The mounting board is provided with at least a drive motor, a ball hitting rod, and an operating section of the ball hitting force adjustment device on the rear side, and a drive blade rotatably driven by the drive motor on the front side, and a drive blade that engages and disengages with the drive blade. a drive cover having a freely movable drive lever; a bearing tube housing a bearing for pivotally supporting a handle shaft that transmits the operation of the drive cover to the ball-striking rod; a second transmission member in which an engaged part that engages with the engaging part of the first transmission member is formed; A take-up ring that is rotated by the rotation of the operating handle, and a coil spring that has one end secured to the take-up ring and the other end secured to the drive cover are inserted into the batting force adjusting device. The configuration is such that the position of the winding ring can be changed by operating the operating section to adjust the initial spring force of the ball hitting rod.

[Effect]

The coil spring that applies biasing force to the batting rod is inserted through the bearing tube of the mounting board where each component that makes up the batting ball launcher is assembled, so the coil spring that applies a biasing force to the batting rod is inserted into the bearing cylinder of the mounting board where the components that make up the batting ball launcher are assembled. It is only necessary to prepare a small mounting board, and the mounting space to the front frame can be further reduced. In addition, by simply attaching the mounting board so that it faces the working space from the back side of the front frame, and attaching the operating handle cover body so that it faces the working space from the front side of the front frame, the engaging portion of the first transmission member and the engaged portion of the second transmission member engage with each other, whereby the rotational operation of the operation handle is reliably transmitted to the ball firing mechanism provided on the mounting board side, and the elastic force can be adjusted. , the ball firing mechanism of the electric game machine can be easily constructed. Further, since the operating section of the ball hitting force adjustment device for initial setting of the spring force is provided on the rear side of the mounting board, adjustment can be easily made from the back side of the front frame. [Example] Hereinafter, an example of this invention will be described with reference to the drawings. First, with reference to FIG. 5, the overall structure of an electric game machine equipped with a ball firing mechanism according to the present invention will be described. FIG. 5 is a back view of the electric gaming machine. In the figure, various mechanisms, so-called back mechanism devices, are formed on a mechanism plate 4 that covers the back side of the game board (not shown) to control winning safe balls from a winning device (not shown) and eject a predetermined number of prize balls. Further, on the back surface of the front frame 3 at the lower left in the figure, a batted ball firing device 30, which together with an operating handle 5 described later constitutes a batted ball firing mechanism according to the present invention, is fixed. The front frame 3 is rotatably supported by the outer frame 2 so as to be openable and closable, and has a front cover plate 1 fixed to the lower front surface of the outer frame 2.
It is designed to be placed on top of a. The relationship between the operating handle 5 and the batted ball firing device 30 that constitute the batted ball firing mechanism will be explained with reference to FIGS. 6 and 7. FIG. 6 shows the front frame 3, the batted ball firing device 30, the lower plate 6, FIG. 3 is an exploded perspective view showing the relationship between the operating handle 5 and the operating handle cover body 9. FIG. In the figure, a window hole 7 is provided in the lower part of the front frame 3.
is opened, and a mounting board 31 for the ball launcher 30 is attached from the back side of the front frame 3 so as to close the window hole 7. In the space of the window hole 7, there is a winding ring 44 protruding from the front side of the board, which will be described in detail later, a coil spring 46, and a drive cover 4.
7, a drive blade 58, a second transmission ring 59 (see FIG. 7), etc. are located there. When attaching the mounting board 31 to the front frame 3, insert the positioning pins 33a and 33b protruding from the mounting board 31 into the guide holes 8a and 8b provided through the front frame 3, and then secure them with screws. It can be installed very precisely. On the other hand, the front side of the window hole 7 is covered by an operation handle cover body 9 having an operation handle 5 protruding from the front side thereof which can be operated by the player. The operation handle cover body 9 has mounting threaded rods 10a to 1.
0c through the mounting holes 11a to 11 provided through the front frame 3
c and through holes 37a to 37c (see FIG. 7) of the mounting board 31, and then fixed to the front frame 3 by being screwed with a screwing member (for example, a nut) not shown. In the illustrated embodiment, the positioning pins 33a, 33b are formed so long that they protrude from the guide holes 8a, 8b, but they may be formed short. In FIG. 6, on the left side of the operating handle cover body 9,
A tray frame body 12 forming a lower tray 6 and an ashtray is fixed to the front frame 3 together with a decorative cover body 13. That is, the plate frame 12 has mounting threaded rods 14a to 14.
c is provided in a protruding manner, which passes through the through holes 15a to 15c of the decorative cover body 13, and further penetrates through the mounting holes 16a to 16c provided through the front frame 3 and is screwed to the plate frame body. 12 and decorative cover body 13
is fixed to the front frame 3. An opening 17a is formed in the decorative cover body 13 at a position corresponding to the lower tray 6, and a prize ball outlet 17b is formed in the front frame 3, so that the prize balls can be guided to the lower tray 6. In addition, a speaker 18 that emits various sound effects is attached to the back left side of the front frame 3.
Escape holes 19a and 19b are formed in the decorative cover body 13 and the front frame 3, respectively, so that sound can be transmitted forward. FIG. 7 is a perspective view showing the relationship between the operating handle cover body 9 and the batted ball firing device 30 that constitute the batted ball firing mechanism. As described above, the operating handle cover body 9 has the operating handle 5 protruding from the front side thereof, which is rotatably operated by the player, and the operating handle 5 which is rotatably operated by the player on the rear side thereof.
A concave cavity 21 is formed. This vacant room 21
includes a pulley 22, a cable 23, and a first
A transmission ring 20 is arranged. This first transmission ring 20 is formed with an engaging uneven portion 20a, and this engaging uneven portion 20a is engaged with an engaging uneven portion 59b of a second transmission ring 59, which will be described later, provided on the mounting board 31. The rotation of the operating handle 5 is transmitted to the ball firing device 30 side, and the take-up ring 44 is rotated to adjust the spring force. In addition, the operation handle cover body 9 and the mounting board 31
When these are attached so as to sandwich the window hole 7 of the front frame 3, a working space 24 (see FIG. 6) is formed by the space of the window hole 7 and the empty chamber 21.
Note that positioning bosses 25a and 25b are formed on the operation handle cover body 9, and by inserting these into guide holes (not shown) in the front frame 3, the operation handle cover body 9 can be attached to the front frame 3. It is becoming easier to do. Next, details of the batted ball launcher 30 will be explained based on FIGS. 1 to 4. FIG. 1 is a perspective view of the batted ball launcher 30 seen from the rear side, and FIG.
Third perspective view of the batted ball launcher 30 seen from the front side.
The figure is an exploded perspective view of the batted ball launcher 30 seen from the front side, and FIG. 4 is a sectional view of the batted ball launcher 30, in which a represents the whole and b represents the A portion of the batted ball force adjustment device. . In the figures (the explanation will be focused on FIG. 3 in particular), the side of the substantially square mounting board 31 that comes into contact with the back side of the front frame 3 (hereinafter referred to as the front side of the board, and the opposite side as the rear side of the board) is shown. ) with a bearing cylinder 32 and a positioning pin 33a on the diagonal line,
33b is formed, and the mounting board 31 itself is provided with a large circular hole 34, an arcuate hole 35, a mounting hole 36, through holes 37a to 37c, and a large number of screw holes. Two bearings 41a and 41b as bearings are press-fitted into both ends of the bearing sleeve 32 via a collar 42. Bearings 41a, 41
A cylindrical handle shaft 40 is fitted into the inner diameter of b from the rear side of the board, and the handle shaft 40 has a flange portion 40a formed at one end thereof and an angular threaded portion formed at the other end. Bearings 41a, 41b and collar 42 are sandwiched between two nuts 43a, 43b screwed onto 40b, and are rotatably supported. Further outside the flange portion 40a of the handle shaft 40, an angular threaded portion 40c and a circular threaded portion 40d are formed. Further, a set screw hole 40e is formed in the end surface of the threaded portion 40b. A coil spring 46 serving as an elastic biasing spring is inserted through the outer periphery of the bearing cylinder 32, and a take-up ring 44 is rotatably fitted into the base of the coil spring 46. The take-up ring 44 locks one end of the cable 61 on its outer periphery, and also
A guide groove 44a into which the coil spring 46 is fitted is formed, and one end 4 of the coil spring 46 is formed in the flange portion of the guide groove 44a.
A plurality of ball hitting force adjustment grooves 44b for locking the ball 6a are formed. Furthermore, one end 46a of the coil spring 46
After the ball is fitted into the ball hitting force adjustment groove 44b and is locked, a spring-like fixed spring 4 maintains the locked state.
A ring groove 44c into which the ring 5 is inserted is formed.
On the other hand, the other end 46b of the coil spring 46 is connected to a locking hole 47b formed in the drive cover 47 made of resin.
It is inserted and fixed. At the center of the drive cover 47,
A square attachment hole 47a is provided through the hole, and the square threaded portion 4 of the handle shaft 40 is inserted into the attachment hole 47a.
0b is inserted into the set screw hole 40 with the screw 49.
By being screwed onto e, the drive cover 47 is fixed to the handle shaft 40. Further, a drive lever 48 is integrally formed on the drive cover 47, and a rotating roller 48a is attached to the tip of the drive lever 48.
is rotatably mounted opposite the mounting board 31. On the other hand, a threaded portion 40c of the handle shaft 40 protruding toward the rear surface of the board is fitted with an attachment hole 50a drilled at the base of a ball-striking rod 50, which has a wall thickness slightly thicker than the length of the threaded portion 40c. , Watusha 5
3 and a nut 54 to fix the ball hitting rod 50 to the handle shaft 50 by screwing the threaded portion 40d. Therefore, this batting rod 50, the drive cover 47, and the drive lever 48 constitute a handle shaft system member that integrally rotates around the handle shaft 40. Further, the batting rod 50 has a hammer tip spring 51 at its tip that directly shoots the pachinko balls, and a linking lever 52 that engages with a ball feed lever that sends the pachinko balls to the firing position on its approximately central side. It is fixed. Note that an upper locking rubber 55 and a lower locking rubber 56 for locking the ball hitting rod 50 are respectively fixed to the rear surface side of the mounting board 31 via rubber fastening plates 55a and 56a whose mounting positions can be adjusted. . A drive motor 57 is temporarily fixed in the large circular hole 34 formed on the right side of the bearing tube 32 from the rear side of the substrate, and a drive blade 58 fixed to the rotational drive shaft of the drive motor 57 is inserted into the large circular hole 34 formed on the right side in the figure. The blade 58 is inserted through the hole 34 and protrudes to the front side of the board, and the blade 58 and the rotating roller 48a of the drive lever 48 can be freely engaged and disengaged by the rotation of the drive motor 57, and the drive lever 4
8 to swing between fixed angles. The mounting hole 36 located above the large circular hole 34 has
A second transmission ring 59, which rotates when the operating handle 5 is rotated, is rotatably supported by a screw 60. This second transmission ring 59 locks the other end of the cable 61 on the outer peripheral edge, and
A semicircular guide groove portion 59a into which the cable 61 is fitted is formed, and an engagement uneven portion 59b is further formed on the front side thereof. Further, the second transmission ring 59 is always urged counterclockwise and locked by the locking protrusion 62 . The cable 61 has one end locked to the take-up ring 44 and the other end locked to the second transmission ring 59, and furthermore, the cable 61 is connected to the circular arc hole 3 at a substantially intermediate position.
It is guided by a rotary roller 63 as a guide member whose position can be adjusted and facing 5. The rotating roller 63 as a guide member is connected to the ball hitting force adjusting device A.
constitutes a part of This hitting force adjusting device A includes an adjusting member 65 that is loosely fitted to a fulcrum shaft pin 64 that extends toward the rear surface side of the board of the positioning pin 33b.
, a cylindrical fixing member 68 fixed to the mounting board 31 with screws, and a fulcrum shaft pin 6 inside the fixing member 68.
4 and a coil spring 76 as a biasing member. A mounting pin 66 is fixed to one end of the adjustment member 65, and the pin 66 is inserted through the circular arc hole 35 to rotatably support a rotary roller 63 as a guide member on the front side of the substrate. Furthermore, on the opposite side of the mounting pin 66, two engaging pins 67 are provided across a through hole 65a through which the fulcrum shaft pin 64 is passed.
a and 67b are provided in a protruding manner. The fixed member 68 is
The cylindrical fixing member main body 68 consists of a cylindrical fixing member main body 68a and a donut-shaped cover plate 68b.
Attachment pieces 69a and 69b are integrally formed on the bottom edge of a, and the adjustment member 65 is rotatable by a predetermined angle within the space between the attachment pieces 69a and 69b. A tooth-shaped groove 70 serving as an engaging portion is carved in a portion of each of the mounting pieces 69a, 69b that protrudes inward from the inner periphery. On the other hand, engagement grooves 71a, 71b are formed on the upper edge of the fixing member main body 68a, and engagement protrusions 72a, 72b of the lid body 68b are formed.
(72b is not shown) is adapted to be engaged. The rotating member 73 consists of a rotating member main body 73a having a T-shaped cross section and a cylindrical plate top, and an operating knob 73b as an operating section. A tooth-shaped groove 74 as an engaging portion is carved radially to engage with the tooth-shaped groove 70 of the fixing member main body 68a, and two insertion holes 75a, 7 are provided.
5b is provided through the engagement pin 6 of the adjustment member 65.
7a and 67b are inserted. Further, on the outer periphery of the cylindrical shaft portion of the rotating member main body 73a through which the fulcrum shaft pin 64 is inserted, a coil spring 76 as a biasing member is held between the cover plate 68b and the top of the cylindrical plate of the rotating member main body 73a. The rotary member 73 is always pressed downward so that the mutual tooth grooves 7
0 and 74 are biased to engage with each other. On the other hand, the tip of the cylindrical shaft portion of the rotating member main body 73a projects outward from the cover plate 68b, and an operating knob 73b is integrally fixed thereto. Therefore, the ball hitting force adjusting device A for the rotating roller 63 configured in this manner adjusts the pitch between the tooth groove 74 of the rotating member body 73a and the fixed member body by pulling the operating knob 73b in the direction of the arrow shown in FIG. 4b. 68a is disengaged from the toothed groove 70, and the rotating member 73 is ready to rotate. At this time, the engagement pin 6 of the adjustment member 65
7a, 67b are still inserted into the insertion holes 75a, 75b of the rotating member main body 73a, so when the operating knob 73b is rotated, the adjusting member 65 also rotates at the same time, and the position of the rotating roller 63 can be changed. . After adjusting the position, by stopping pulling and releasing the operating knob 73b, the tooth profile groove 70 and the tooth profile groove 74 are brought into engagement again by the biasing force of the coil spring 76, so that the changed Can hold position. FIG. 9 is a sectional view showing another embodiment of the ball hitting force adjusting device A (components corresponding to the above embodiment are given the same numbers). Fixing member 6 attached
The mounting board 3 is attached to the inner periphery of the fixing member main body 68a of No. 8.
An engagement piece 8 having a tooth-shaped groove 70 on the surface facing the first side
2a and 82b are provided protrudingly. On the other hand, the rotating member main body 73a of the rotating member 73 that slides inside the fixed member main body 68a has one end protruding to the opposite side of the mounting board 31 through a through hole provided in the mounting board 31, and the adjusting member 65 is fixed thereto. At the same time, an operation knob 73b serving as an operation section is fixed to the other end. Furthermore, an engagement disk 83 is formed on the rotating member main body 73a and is in contact with the inner circumference of the fixed member main body 68a, and a tooth-shaped groove 74 that engages with the tooth-shaped groove 70 is carved on the outer circumference of the engagement disk 83. has been done. Then, the cover plate 68b of the fixed member 68 and the rotating member 73
A coil spring 76 is inserted between the operation knob 73b and the tooth profile grooves 70 and 7.
4 are urged to engage with each other. Note that a rotating roller 63 serving as a guide member is attached to one end of the adjusting member 65 so that the cable 61 guides the rotating roller 63 . The operation of the ball hitting force adjusting device A having the above configuration will be explained. The player rotates the operating handle 5 to rotate the first transmission ring 20, and rotates the second transmission ring 59 that engages with the first transmission ring 20, thereby winding the cable 61 and tightening the coil spring 46. It can strengthen the elasticity. On the other hand, when initializing the elastic force when manufacturing the electric game machine 1, or when initializing the elastic force when the coil spring 46 is stretched due to long-term use in a game parlor, Pull the operating knob 73b protruding toward the front from the back side of the electric game machine 1 to rotate it by a desired angle, and move the position of the rotating roller 63 as a guide member in the vertical direction as shown in FIG. This makes it possible to change the tension of the coil spring 46 via the cable 61.
In the ball hitting force adjusting device A in the embodiment shown in FIG. 9, the position of the rotating roller 63 as a guide member is moved by pressing the operating knob 73b and rotating it by a desired angle, as shown in b. can. In the illustrated embodiment, the entire batting force adjustment device A is disposed on the rear side of the mounting board 31, but there is an operation knob 73b as an operation section on the rear side of the mounting board 31. It is only necessary that at least one person is present. As described above, in this embodiment, the coil spring 46 that applies a biasing force to the ball-striking rod 50 is attached to the bearing tube 32 of the mounting board 31, on which each component constituting the ball-striking device 30 is assembled. Since it is inserted through, it is sufficient to prepare a mounting board 31 that is smaller than the mounting board to which the elongated biasing spring is mounted, and the mounting space to the front frame 3 can be further reduced. In addition, by simply attaching the mounting board 31 so as to face the working space 24 from the back side of the front frame 3, and attaching the operating handle cover body 9 so as to face the working space 24 from the front side of the front frame 3, the first The engaging uneven portion 20a of the transmission ring 20 and the engaging uneven portion 59b of the second transmission ring 59
As a result, the rotational operation of the operating handle 5 is reliably transmitted to the ball firing mechanism provided on the mounting board 31 side, and the elastic force can be adjusted, thereby making it possible to adjust the ball firing mechanism of the electric game machine. The mechanism can be easily configured. Further, since the operating knob 73b of the ball-hitting force adjustment device A for initializing the spring force is provided on the rear side of the mounting board 31, adjustment can be easily made from the back side of the front frame 3.

[Effect of the idea]

As is clear from the above explanation, the ball launch mechanism according to the present invention has a coil that applies a biasing force to the ball rod in the bearing tube of the mounting board where each component constituting the ball launch device is assembled. Since the spring is inserted through the spring, it is sufficient to prepare a mounting board smaller than the mounting board to which the elongated biasing spring is mounted, and the mounting space to the front frame can be further reduced. Also, install the mounting board so that it faces the working space from the back side of the front frame, and
By simply attaching the operating handle cover body from the front side of the front frame so as to face the operating space, the engaging portion of the first transmitting member and the engaged portion of the second transmitting member engage with each other. The rotational operation is reliably transmitted to the ball firing mechanism provided on the mounting board side, and the rebound force can be adjusted, and the ball firing mechanism of the electric game machine can be easily constructed.
Further, since the operating section of the ball hitting force adjustment device for initial setting of the spring force is provided on the rear side of the mounting board, adjustment can be easily made from the back side of the front frame.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the batted ball launcher seen from the rear side, Figure 2 is a perspective view of the batted ball launcher seen from the front side, and Figure 3 is an exploded perspective view of the batted ball launcher seen from the front side. FIG. 4 is a sectional view of the ball firing device, where a represents the entire device and b represents a portion of the ball hitting force adjusting device. FIG. 5 is a back view of the electric game machine with the batted ball launcher attached, and FIG. 6 is an exploded perspective view showing the relationship between the front frame, the batted ball launcher, the lower plate, and the operating handle cover body having the operating handle. , 7th
The figure is a perspective view showing the relationship between the operating handle cover body and the ball launcher, FIG. 8 is a front view of the ball launcher, and FIG. 9 is a sectional view showing another aspect of the ball launcher. . DESCRIPTION OF SYMBOLS 1...Electric game machine, 3...Front frame, 5...Operation handle, 7...Window hole, 9...Operation handle cover body, 21...Vacancy, 24...Working space, 30
...Battered ball launcher, 31...Mounting board, 32...
Bearing tube, 40... Handle shaft, 41a, 41b...
... Bearing (bearing), 44 ... Winding ring, 4
6...Coil spring, 47...Drive cover,
48... Drive lever, 51... Batting rod, 57...
Drive motor, 58... Drive vane, 73b... Operation knob (operation unit), A... Hitting force adjustment device force transmission mechanism, 20... First transmission link, 22...
Pulley, 23... Cable.

Claims (1)

[Scope of Claim for Utility Model Registration] An operation handle cover body with a vacant chamber formed on the front side of the front frame to cover the window hole formed at the bottom of the front frame, and a mounting board for the batted ball launcher on the back side. , the empty space of the operating handle cover body is connected to the window hole, and an operating space is formed by the operating handle cover body and the mounting board, and the operating handle cover body has an operation that can be operated by the player on the front side thereof. A handle is protruded, and a first transmission member is provided in the empty space on the rear side and is interlocked with the operating handle and has an engaging portion formed therein, and the mounting board has a drive motor on the rear side;
A drive cover that includes at least a ball-striking rod and an operating section of a ball-striking force adjustment device, and has a drive blade rotatably driven by a drive motor on the front side thereof, a drive lever that can be freely engaged and disengaged from the drive blade, and the ball-hitting ball. A bearing sleeve that houses a bearing that pivotally supports a handle shaft that transmits the operation of the drive cover to the rod, and a cover that is rotatably provided on the side of the bearing sleeve and that engages with the engaging portion of the first transmission member. a second transmission member in which an engaging portion is formed; a winding that is rotated by the rotation operation of the operating handle via the first transmission member and the second transmission member; A take-up ring and a coil spring whose one end is locked to the take-up ring and the other end to the drive cover are inserted through the take-up ring, and the position of the take-up ring is displaced by operating the operating section of the ball hitting force adjustment device. A ball firing mechanism for an electric game machine in which the initial rebound force of a ball rod can be adjusted by adjusting the initial rebound force of a ball rod.