JP4173157B2 - game machine - Google Patents

Description

  In the present invention, like a mole hitting game machine, a target is appropriately projected beyond the board surface of the game board from the storage portion provided on the game board, and the player can compete whether or not it can be hit. Related to the game machine.

In this type of game machine, a pair of sensors are arranged in the vicinity of a movable member that is linked in the same direction as the target, along the direction of movement of the movable member, and the sensor detects the detection target of the movable member. A game machine that measures the impact force applied to the target by calculating the speed of the target from the difference has been proposed (see, for example, Patent Document 1).
JP-A-11-226238

  In the conventional game machine described above, only the average speed of the target while the same detection target moves between the two sensors can be obtained. In order to improve the resolution of the force, it is necessary to arrange a large number of sensors, resulting in an increase in cost. In addition, in order to arrange a large number of sensors in a row, a corresponding space is also required.

  Accordingly, an object of the present invention is to provide a game machine that can easily increase the resolution related to the detection of the force with which the target is hit without using a large number of sensors, and can also ease restrictions on installation space. To do.

According to the present invention, a target (9) provided in a retractable manner in a housing part (8) that opens to a board surface (7), and a position where the target protrudes from the housing part and a position retracted into the housing part A target drive mechanism (50) to be driven and a detection target (61) linked to the target are detected by a sensor (62), and a motion detection device (60) that outputs a detection signal corresponding to the speed of the target from the sensor And a signal processing device (70) for calculating a physical quantity correlated with the force with which the target is struck based on a detection signal output from the sensor, and the target driving mechanism drives the target. And a motion transmission mechanism (52, 53, 54) for transmitting the motion supplied from the drive source to the target. The motion detection device includes: As the detection object, the motion transmission mechanism A detection member (61) that reciprocates in a predetermined direction in conjunction with the target is provided by the motion transmitted by the sensor, and the detection member (65) arranged at a constant pitch in the predetermined direction is provided on the detection member. The sensor detects the detected portion and outputs the detection signal, and the signal processing device determines the velocity of the target from the period of a pulse train of the detection signal output from the sensor during the operation of the target. Detecting and differentiating the velocity to calculate the acceleration of the target as the physical quantity, and the motion transmission mechanism has a motion transmission path between the drive source and the target when the target is hit. clutch is provided to decouple the sensing member of the operation detecting apparatus, the it is connected to the motion transmission mechanism is also at the position of the target closer than the clutch, by, for solving the above problems.

  In the game machine of the present invention, the target is driven to a position where the target protrudes from the board surface by the target driving mechanism, and when the protruding target is struck and retreats to the accommodating portion, the detection member is interlocked with the retreat operation of the target. Moves in a predetermined direction. Along with the movement, the detected portion of the detection member sequentially passes through the detection position of the sensor, so that a pulse train of detection signals is output from the sensor. Since the period of the pulse train of the detection signal correlates with the speed of the target, the speed of the target is detected by detecting the speed from the period and differentiating the detected value of the speed. When a target is struck and force is applied to it, the acceleration of the target is proportional to the force applied to the target. Therefore, the force applied to the target can be determined from the calculated acceleration. In order to increase the resolution related to force detection, it is only necessary to make the pulse train dense. To that end, it is only necessary to reduce the pitch of the detected portions provided on the detection member, and it is not necessary to increase the number of sensors. Therefore, it is possible to easily increase the resolution related to force detection without using a large number of sensors. Further, since it is not necessary to secure a space for installing a large number of sensors, restrictions on the installation space of the sensors are eased.

Further, when the target is struck and retracted toward the housing portion, the motion transmission path is disconnected by the clutch, thereby reducing the resistance on the drive source side with respect to the retracting operation of the target. Since the detection member is connected to the motion transmission mechanism at a position closer to the target than the clutch, the target and the detection member are interlocked with each other while maintaining a certain correlation even while the target is hit and retreated. Thereby, it is possible to accurately detect the acceleration generated by hitting the target.

  In one form of this invention, the said drive source generate | occur | produces rotational motion, The said transmission shaft is provided with the input shaft (56) connected with the said drive source, The detection as a said detection member is provided in the said input shaft. A plate may be connected to the input shaft so as to be integrally rotatable, and the detection portion may be formed on the detection plate at a constant pitch in the circumferential direction.

  According to the above aspect, since the detection member is rotationally moved, it suffices to arrange the detected portions in the circumferential direction of the detection member, and the space necessary for providing the detection member even if the operation range of the target is expanded. It can be relatively small. That is, since the circumferential length at the position where the detected parts are arranged increases to three times or more with respect to the increase in the diameter from the rotation center of the detecting member to the position where the detected parts are arranged, the detection member is increased in size. It is possible to ensure a relatively long range in which the detected parts can be arranged while suppressing. Moreover, since the detection member rotates, it is not necessary to leave a space necessary for the detection member to move in accordance with the movement of the target.

  In one embodiment of the present invention, the sensor has a pair of detection units (62a, 62b) arranged at a non-integer multiple pitch with respect to a half of the pitch of the detection unit in the moving direction of the detection member. The signal processing device determines the operation direction of the target based on the phase difference of the pulse train of the detection signal output for each pair of the detection units, and the determined operation direction moves backward to the storage unit. The acceleration may be calculated when the target is hit.

  According to said form, when a target operate | moves, a pulse train of the same period is output from a pair of detection part with the phase difference according to those pitches. The phase difference of these pulse trains is a value different from 1/2 of the cycle of the pulse train because the pitch of the detectors is set to a non-integer multiple of 1/2 of the arrangement pitch of the detected parts. For this reason, when one pulse train is used as a reference, the deviation amount of the other pulse train differs before and after the time axis, and the magnitude relationship between the deviation amounts before and after the time axis is reversed according to the moving direction of the detection member. Therefore, it is possible to specify the operation direction of the detection member from the phase difference of the pulse train, and to determine the operation direction of the target from the correspondence relationship between the operation direction of the detection member and the target operation direction. Therefore, if the acceleration is calculated when the target is struck and retracted toward the housing unit, the force with which the target is struck can be correctly detected. Note that whether or not the target has been hit may be determined by various methods. For example, based on the pulse train when the target retreats to the housing without being hit, the target pulse train is compared with the actually detected pulse train to determine whether the target has been hit and retreated can do.

  In addition, in the above description, in order to make an understanding of this invention easy, the reference sign of the accompanying drawing was attached in parenthesis, but this invention is not limited to the form of illustration by it.

  As described above, according to the game machine of the present invention, the detection members that are linked to the target are provided with detected portions at a constant pitch, and these are detected by the sensor, and the pulse train of the detection signal is output from the sensor. Since the speed and acceleration are obtained from the pulse train, the pulse train output from the sensor may be made dense in order to increase the resolution related to the force detection. For this purpose, the pitch of the detected portion provided on the detection member is set to be high. There is no need to increase the number of sensors. Therefore, it is possible to easily increase the resolution related to force detection without using a large number of sensors. Further, since it is not necessary to secure a space for installing a large number of sensors, restrictions on the installation space of the sensors are eased.

  FIG. 1 is a perspective view showing a game machine according to one embodiment of the present invention, and FIG. 2 is a right side view of the game machine. As shown in these drawings, the game machine 1 includes a support base 2, a game board 3 disposed on the support base 2, and a display 4 disposed behind the game board 3. The support base 2 is a portion that should be a base of the game machine 1 and is placed on a floor surface of a store or the like. An operation panel 5 that accepts player operations is provided at the upper end of the front portion of the support base 2, and a plurality of hammer holders 6 are provided on the right side of the operation panel 5. These hammer holders 6 are detachably attached with hammers (not shown) having different sizes and masses. The display 4 is provided for performing an operation instruction to the player, presenting game information, or displaying an image for producing a game.

  A board surface 7 is provided on the upper surface of the game board 3. A plurality (seven in FIG. 1) of hole portions 8 are opened on the board surface 7, and one target 9 is provided in each of the hole portions 8. Each target 9 can move freely from the hole 8. In the game machine 1 of this embodiment, each target 9 protrudes from the hole 8 at an appropriate timing, and the game results change depending on whether or not the player can hit the protruding target 9 with a hammer. The mechanism for driving the target 9 may be a well-known mechanism, and an example thereof will be described later.

  FIG. 3 is a partially cutaway front view of the game machine 1, and FIG. 4 is a longitudinal sectional view along the front-rear direction of the game machine 1. As shown in these drawings, the support base 2 and the game board 3 are respectively configured as separate and independent housings. The support base 2 is configured by appropriately combining components such as the bottom plate 10, the wall plate 11, and the top plate 12. The top plate 12 is tilted so as to draw a downward gradient toward the front (left side in FIG. 4). The game board 3 is supported on the top board 12. The game board 3 has a trunk portion 15 whose center is slightly swollen compared to the upper and lower ends, a bottom plate 16 fitted to the lower end side of the trunk portion 15, and a top plate 17 fitted to the upper end side of the trunk portion 15. It is comprised in the barrel-shaped container shape which combined. The top surface of the top plate 17 corresponds to the board surface 7, and the hole 8 described above is formed in the top plate 17.

  A rotation drive device 20 is provided inside the support base 2. 5 is a front view of the rotary drive device 20, FIG. 6 is a right side view thereof, and FIG. 7 is a plan view thereof. As is clear from these drawings, the rotary drive device 20 includes an electric motor (hereinafter referred to as a motor) 21 as a drive source, a speed reducer 22 that decelerates the rotation of the motor 21, and rotation of the motor 21. A belt transmission mechanism 23 for transmitting to the speed reducer 22 and a connector 24 for connecting the output shaft 22a of the speed reducer 22 and the game board 3 are provided. The output shaft 22 a extends substantially in the vertical direction, and its center line corresponds to the turning axis RC of the game board 3. The coupler 24 includes a first connecting portion 24a attached to the output shaft 22a so as to be integrally rotatable, a rotating portion 24b connected to the first connecting portion 24a, and a second connecting portion 24c combined with the rotating portion 24b. It has. The first connecting portion 24a and the rotating portion 24b are rotatably connected around a first rotating axis 24d orthogonal to the turning axis RC, and the rotating portion 24b and the second connecting portion 24c are connected to the turning axis RC and the first rotating axis. The second rotation axis 24e orthogonal to both of 24d is connected to be rotatable. Further, the second connecting portion 24 c is integrally joined to the bottom plate 16 of the game board 3.

  According to the connector 24 as described above, the output shaft 22a is rotationally driven, whereby the game board 3 is connected so as to be integrally rotatable around the turning axis RC (see arrow A in FIG. 7). In addition, the rotational movement of the rotating part 24b with respect to the first connecting part 24a (arrow B in FIG. 5) and the rotational movement of the second connecting part 24c with respect to the rotating part 24b (arrow C in FIG. 6) are combined to form a game. The board 3 is connected to the output shaft 22a so as to be tiltable in all directions, that is, in a direction of 360 ° with respect to the turning axis RC.

  The lower end portion of the output shaft 22a protrudes below the speed reducer 22, and a key 25 is attached to the protruding portion 22b. On the other hand, a base plate 26 to which the speed reducer 22 is attached is provided with a pair of stoppers 27 that can come into contact with the key 25. As the output shaft 22a rotates, the key 25 hits one of the stoppers 27, thereby restricting the rotation range of the output shaft 22a and thus the game board 3. As shown in FIGS. 5 and 6, when the output shaft 22 a is at the center position of the rotation range, the game board 3 has the bottom plate 16 with respect to the front-rear direction of the game machine 1 (the left-right direction in FIG. 6). Is tilted forward and the bottom plate 16 is positioned so as to have the same height from the left end to the right end in the left-right direction of the game machine 1. Hereinafter, the positions shown in FIGS. 5 and 6 are referred to as neutral positions of the game board 3.

  As apparent from FIG. 4, the top board 17 of the game board 3 is substantially parallel to the bottom board 16, so that the board surface 7 of the game board 3 is also lowered forward toward the player side in the neutral position in the same manner as the bottom board 16. To tilt. Then, the rotation angle of the output shaft 22a from the neutral position is set to about 45 ° in the left-right direction, for a total of 90 °. Further, a rotation detector 28 for detecting the rotation angle of the output shaft 22a is provided at the lower end of the protrusion 22b. The rotation angle detected by the rotation detector 28 is used to specify the rotation angle from the neutral position of the game board 3.

  As shown in FIGS. 2, 4, and 8, a caster 30 as a guided member is attached to the bottom plate 16 of the game board 3 in order to support the game board 3 with the top plate 12 of the support base 2. The caster 30 receives a part of its own weight of the game board 3 and contacts the guide surface 31 a of the guide member 31 attached to the top plate 12. When the caster 30 contacts the guide surface 31a, the inclination of the game board 3 with respect to the turning axis RC is uniquely determined. In other words, since the second connecting portion 24c of the connector 24 can be tilted in all directions with respect to the output shaft 22a simply by connecting the output shaft 22a and the game board 3 via the connector 24, the inclination of the game board 3 is increased. Although not determined, the caster 30 is grounded to the guide surface 31a by utilizing the weight of the game board 3, so that the free tilt of the game board 3 can be prevented and the tilt of the game board 3 can be uniquely determined. .

  The guide surface 31a extends while drawing an arcuate curved surface that protrudes downward. When the game board 3 is in the neutral position, the caster 30 contacts the bottom of the guide surface 31a, that is, the lowest position in the center. In other words, the guide surface 31a has the contact position of the caster 30 when the game board 3 is in the neutral position as the bottom, and the guide surface 31a becomes higher in the vertical direction (the direction of the turning axis RC) as it moves away from the bottom in the rotation direction of the game board 3. There is a height difference that increases the height. Therefore, when the game board 3 is rotationally driven from the neutral position by the rotation driving device 20, the caster 30 runs up along the guide surface 31a. As a result, the game board 3 is given an inclination corresponding to the rotation angle from the neutral position with respect to the turning axis RC. For example, when the game board 3 is driven to rotate counterclockwise from the neutral position, the game board 3 tilts downward as shown in FIG. As is apparent from the above, in this embodiment, the caster 30 and the guide member 31 constitute the tilt applying mechanism 32.

  As shown in FIG. 4, a lift mechanism 40 is provided at the rear part of the support base 2. As shown in FIGS. 10 and 11, the lift mechanism 40 includes a housing 41, an electric motor 42 attached to the housing 41, a ball screw 43 that converts rotation of the motor 42 into linear motion, and a ball screw. The caster 44 is attached to the tip of the screw shaft 43a, and the guide rod 45 is attached to the housing 41 so as to be movable in a direction parallel to the screw shaft 43a. The housing 41 is fixed inside the support base 2. The nut 43b of the ball screw 43 is attached to the housing 41 so as to be rotatable around the screw shaft 43a and not movable in the direction of the screw shaft 43a. The upper end of the guide rod 45 is connected to the caster 44, thereby preventing the screw shaft 43a from rotating. The motor 42 is provided to rotate the nut 43b, and the screw shaft 43a moves in the axial direction by the rotation of the nut 43b.

  As shown in FIG. 4, the housing 41 is configured so that the caster 44 is retracted below the bottom plate 16 of the game board 3 with the screw shaft 43 a of the ball screw 43 moved to the lower end of the moving range. Attached to. When the screw shaft 43a of the ball screw 43 is raised, the caster 44 comes into contact with the bottom plate 16 of the game board 3 as shown in FIG. 12, thereby the rear part of the game board 3 is lifted and the game board 3 is connected to the connector 24. Lean forward and downward. As a result, the caster 30 of the inclination imparting mechanism 32 is separated from the guide member 31, and the inclination of the board surface 7 of the game board 3 with respect to the horizontal direction increases.

  According to the game machine 1 configured as described above, the game board 3 can be turned left and right from the neutral position by the rotation driving device 20, and in addition to the turning action, the game board 3 can be turned from the inclination imparting mechanism 32. Is inclined with respect to the turning axis RC. By these operations, a complicated operation can be given to the board surface 7, and by diverging the target 9 from the hole portion 8 in accordance with the operation of the board surface 7, the operation of the target 9 is diversified. It is possible to increase the fun of the game by increasing the difficulty of predicting the movement of the game. The lift mechanism 40 can further change the inclination of the board surface 7, thereby further diversifying the operation of the target 9.

  In the game machine 1 of this embodiment, the game board 3 and the output shaft 22a of the rotation drive device 20 are connected by the coupler 24, so that rotation can be efficiently transmitted from the rotation drive device 20 to the game board 3. it can. By connecting the game board 3 to the output shaft 22a via the connector 24, the game board 3 can be restrained on the turning axis RC. In other words, the game board 3 can be held on the turning axis RC by the rotation driving device 20. As a result, it is possible to suppress the swing from the turning axis RC or the misalignment when the game board 3 rotates, and to relatively increase the stability of the rotational motion. Regarding the tilt of the game board 3 with respect to the turning axis RC, the game board 3 is restrained via the coupler 24, so that the game board 3 may be supported on the support base 2 at least at one other point. Therefore, it is easy to simplify the support mechanism of the game board 3. Since the guide surface 31a is formed in a curved surface whose height increases with increasing contact with the caster 30 when the guide surface 31a is in the neutral position, the angle of rotation from the neutral position of the game board 3 increases. The game board 3 is given a large inclination, so that the movement of the target 9 can be changed more dynamically. By rotating the game board 3 with the front drop from the neutral position, the board surface 7 is inclined obliquely with respect to the player, and the inclination is further changed by the inclination given by the inclination providing mechanism 32. As a result, the target 9 that is directed toward the player in the neutral position moves in a different direction, and the player is required to change the action of hitting the target 9. Through such changes, it is possible to eliminate the monotony of the movement of the target and enhance the interest of the game.

  Next, an example of a configuration for causing the target 9 to appear and disappear from the hole 8 will be described. As shown in FIGS. 13 and 14, a target driving mechanism 50 is provided inside the game board 3. A target driving mechanism 50 is provided for each target 9. The target drive mechanism 50 drives the target between a position protruding from the hole 8 and a position retracted to the hole 8. 13 and 14 show a state when the target 9 is in the retracted position. Hereinafter, the position of the target 9 in FIG. 13 is referred to as an origin position. In addition, although the target 9 has the shape which rounded the upper part of the cylinder into the hemisphere, the form of the target 9 is not restricted to this, It can change suitably.

  The target drive mechanism 50 includes an electric motor 51 as a drive source, a target drive shaft 52 that protrudes downward through the center line of the target 9, and a linear motion in the axial direction of the target drive shaft 52 that rotates the motor 51. And a clutch 54 disposed between the motor 51 and the motion conversion mechanism 53. That is, the target drive mechanism 50 transmits the rotation of the motor 51 to the motion conversion mechanism 53 via the clutch 54, and the motion conversion mechanism 53 converts the rotational motion into a linear motion in the axial direction (vertical direction) of the target drive shaft 52. By converting, the target 9 is moved up and down. The clutch 54, the motion conversion mechanism 53, and the target drive shaft 52 constitute a motion transmission mechanism. The target drive shaft 52 is guided in the vertical direction by a bearing 55. The motion conversion mechanism 53 includes an input shaft 56 to which rotation from the clutch 54 is transmitted, an arm 57 that is driven to swing around the input shaft 56, and a roller 58 provided at the tip of the arm 57. ing. When the arm 57 is driven in the direction of arrow D in the drawing by the rotation of the input shaft 56, the roller 58 contacts and pushes up the flange portion 52a at the lower end of the target drive shaft 52, thereby raising the target drive shaft 52. Thus, the target 9 protrudes from the hole 8. The motion conversion mechanism 53 may use an appropriate mechanism such as a cam mechanism, a crank mechanism, a rack and pinion, and a screw mechanism. The clutch 54 cuts off the motion transmission path between the input shaft 56 of the motion conversion mechanism 53 and the motor 51 when the target 9 is hit and lowered, thereby preventing an input of an overload to the motor 51 or 9 suppresses the resistance to the descending action.

  The target drive mechanism 50 is provided with a motion detection device 60 that detects the motion of the target 9. The motion detection device 60 includes a disk-shaped detection plate 61 attached to the input shaft 56 of the motion conversion mechanism 53 so as to be integrally rotatable, a first sensor 62 disposed on the outer periphery of the detection plate 61, and a first sensor 62. And a second sensor 63 arranged on the outer periphery of the detection plate 61 with a distance in the circumferential direction. As shown in FIG. 13, a reference slit 64 and a large number of counting slits 65 arranged at a constant pitch in the circumferential direction are provided on the outer periphery of the detection plate 61. Between the reference slit 64 and the counting slit 65, a closed section 66 where no slit exists is provided. The first sensor 62 is an optical sensor including two pairs of light projecting parts 62a and light receiving parts 62b arranged so as to sandwich the detection plate 61, and the light emitted from each pair of light projecting parts 62a is a light receiving part. When detected at 62b, the detection signal of the slit 65 is output. The detection signal is output separately for each pair of the light projecting unit 62a and the light receiving unit 62b. The pitch in the circumferential direction between the light projecting portions 62 a is a non-integer multiple of ½ of the pitch of the counting slit 65. The second sensor 63 is a similar optical sensor, but the light projecting unit and the light receiving unit are a pair.

  When the target 9 is at the origin position, the first sensor 62 is in the area where the counting slit 65 is formed, more specifically, in the area on the leading side in the rotation direction (see arrow D) when the target 9 is raised, and the second sensor 63 is a position where the reference slit 64 is detected. When the target 9 rises from the origin position, the first sensor 62 outputs two pairs of pulse trains of detection signals having a period corresponding to the interval between the counting slits 65 and the rotation speed of the detection plate 61. On the other hand, in the second sensor 63, no detection signal is output until the leading end of the counting slit 65 reaches the second sensor 63 after the closing section 66 has passed, and the detection signal is detected from the time when the counting slit 65 is detected. A pulse train is output.

  The detection signal of the motion detection device 60 is processed by a signal processing unit (signal processing device) 70. The signal processing unit 70 is a computer unit using a microprocessor, and determines the operating state of the target 9 based on detection signals output from the sensors 62 and 63. For example, the signal processing unit 70 determines whether or not the target 9 is at the origin position in FIG. 13 based on the detection signal of the second sensor 63. When the signal processing unit 70 determines that the target 9 is not at the origin position based on the signal from the second sensor 63, the signal processing unit 70 detects the operation of the target 9 by executing the operation determining routine shown in FIG. To do. Note that the operation determination routine is repeatedly executed at a constant cycle when the target 9 is not at the origin position.

  In the operation determination routine of FIG. 15, the signal processing unit 70 first detects the phase difference of the pulse train of the detection signal output from the first sensor 62 in step S1, and then determines the operation direction of the target 9 from the phase difference in step S2. Judge whether it is descending or not. That is, when the target 9 operates, each light receiving unit 62b of the first sensor 62 outputs a pulse train having the same period with a phase difference corresponding to the pitch. The phase difference between these pulse trains is different from ½ of the cycle of the pulse train because the pitch of the light receiving portions 62b is set to a non-integer multiple of ½ of the arrangement pitch of the slits 65. For this reason, when one pulse train is used as a reference, the shift amount of the other pulse train is different before and after the time axis, and the magnitude relationship between the shift amounts before and after the time axis is reversed according to the rotation direction of the detection plate 61. Therefore, the rotation direction of the detection plate 61 can be specified from the phase difference of the pulse train, and the movement direction of the target 9 can be determined from the correspondence between the rotation direction of the detection plate 61 and the movement direction of the target 9. If it is descending, the process proceeds to step S3, and it is determined whether or not it is a descending motion that occurs as a result of the target 9 being hit. For example, by comparing the period of the pulse train that occurs when the motor 51 is driven and the target 9 is lowered with the period of the pulse train of the detection signal, whether the lowering operation of the target 9 occurs as a result of being hit It can be determined whether or not. If it is determined that the target 9 has been hit, the signal processing unit 70 proceeds to step S4 and detects the lowering speed of the target 9 from the period of the pulse train output from the first sensor 62. In subsequent step S <b> 5, the signal processing unit 70 differentiates the detected speed value to detect the acceleration of the target 9. When step S5 is processed, the current routine is terminated.

  The acceleration obtained as described above is proportional to the force applied by hitting the target 9. Accordingly, the acceleration obtained in step S5 is taken out from the signal processing unit 70 as the acceleration signal α, and taken into the control device (not shown) of the game machine 1, thereby grasping the strength of the force with which the player strikes the target 9. This can be reflected in the game processing, for example, the setting of the score and the difficulty level. The signal processing unit 70 may be provided as a part of functional blocks of the control device of the game machine 1.

  In the above embodiment, in order to increase the resolution related to the force detection, the pulse train of the detection signal output from the first sensor 62 may be made dense. For this purpose, the pitch of the slits 65 provided in the detection plate 61 is made fine. There is no need to increase the number of sensors 62. Therefore, it is possible to easily increase the resolution related to force detection without using a large number of sensors. Furthermore, since it is not necessary to secure a space for installing a large number of sensors, restrictions on the installation space for the sensor 62 are eased. When the target 9 is struck and retracted toward the hole 8, the motion transmission path is disconnected by the clutch 54, thereby reducing the resistance on the motor 51 side with respect to the retreating operation of the target 9. Since the detection plate 61 is connected to the motion transmission mechanism at a position closer to the target 9 than the clutch 54, the target 9 and the detection plate 61 have a certain correlation even while the target 9 is struck and retracted. Keep in sync. Thereby, the acceleration generated by hitting the target 9 can be detected with high accuracy. Since the detection plate 61 is rotated, the slits 65 may be arranged in the circumferential direction of the detection plate 61, and even if the operation range of the target 9 is expanded, the space necessary for providing the detection plate 61 can be made relatively small. be able to. That is, the length in the circumferential direction at the position where the slits 65 are arranged increases to three times or more as the diameter increases from the rotation center of the detection plate 61 to the position (outer peripheral part) where the slits 65 are arranged. It is possible to secure a relatively long range in which the slits 65 can be arranged while suppressing an increase in size. In addition, since the detection plate 61 rotates, it is not necessary to leave a space necessary for the detection plate 61 to move along with the movement of the target 9. Since the acceleration is calculated when the target 9 is struck and retracted into the hole 8, the force with which the target 9 is struck can be detected correctly.

  In the above embodiment, the detection plate 61 is the detection target and the detection member, the slit 65 of the detection plate 61 is the detected portion, and the one light projecting portion 62a and the light receiving portion 62b of the first sensor 62 are the single detection portion. The other light projecting unit 62a and the light receiving unit 62b correspond to one other detection unit, and these detection units correspond to a pair of detection units, respectively. However, the present invention can be implemented in various forms without being limited to the above-described forms. For example, the detection member may be provided on or in parallel with the target drive shaft, and the detected portion of the detection member may be moved in the same direction as the target. The detected part is not limited to the slit, and can be changed such as one that reflects detection light, one that can be detected magnetically, and the like.

  In the above embodiment, the target 9 appears and disappears from the board surface 7 of the game board 3 in the substantially vertical direction. However, the present invention is also applied to a game machine configured such that the target appears and appears in the front and rear direction of the game machine from the housing unit. it can. A mechanism for turning or tilting the game board 3 is not essential in the present invention, and the present invention can be applied to a configuration in which the game board 3 is fixed to the support base 2.

The perspective view of the game machine concerning one form of the present invention. The right view of a game machine. The front view which fractured | ruptured the game machine partially. The longitudinal cross-sectional view along the front-back direction of a game machine. The front view of the rotational drive apparatus provided in the game machine. The right view of a rotation drive device. The top view of a rotation drive device. The enlarged view of the inclination provision mechanism provided between the support stand and the game board. The perspective view which shows a mode when rotating a game board from the neutral position in the counterclockwise direction. The front view of the lift mechanism provided in the game machine. The side view of the lift mechanism seen from the arrow XI direction of FIG. The longitudinal cross-sectional view when the rear part of a game board is lifted with the lift mechanism. The figure which shows the target drive mechanism provided in the game board. Sectional drawing of the target drive mechanism along the XIV-XIV line | wire of FIG. 14 is a flowchart showing an operation determination routine executed by the signal processing unit of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Game machine 2 Support stand 3 Game board 7 Board surface 8 Hole part (accommodating part)
9 Target 20 Rotation drive device 21 Motor (drive source)
22 reducer 22a output shaft 24 coupler 30 caster (guided member)
31 Guide member 31a Guide surface 32 Inclination imparting mechanism 40 Lift mechanism 50 Target drive mechanism 51 Motor (drive source)
52 target drive shaft 53 motion conversion mechanism 54 clutch 56 input shaft 60 motion detection device 61 detection plate (detection target, detection member)
62 1st sensor 62a Light projecting part 62b Light receiving part 65 Slit for counting (detected part)
70 Signal Processing Unit (Signal Processing Device)
RC swivel axis

Claims (3)

A target provided so as to be able to appear and disappear in a housing portion that opens on the board surface;
A target drive mechanism for driving the target between a position protruding from the storage portion and a position retracted into the storage portion;
A motion detection device that detects a detection target linked to the target with a sensor and outputs a detection signal corresponding to the speed of the target from the sensor;
A signal processing device that calculates a physical quantity correlated with the force with which the target is struck based on a detection signal output by the sensor; and
The target drive mechanism is provided with a drive source that generates a motion for driving the target, and a motion transmission mechanism that transmits the motion supplied from the drive source to the target,
The motion detection device is provided with a detection member that reciprocates in a predetermined direction in conjunction with the target by the motion transmitted in the motion transmission mechanism as the detection target.
The detection member is provided with detected portions arranged at a constant pitch in the predetermined direction,
The sensor detects the detected portion and outputs the detection signal;
The signal processing device detects the speed of the target from the period of a pulse train of a detection signal output from the sensor during the operation of the target, differentiates the speed to calculate the acceleration of the target as the physical quantity ,
The motion transmission mechanism is provided with a clutch that disconnects a motion transmission path between the drive source and the target when the target is struck, and the detection member of the motion detection device is more than the clutch. game machine characterized that it is connected to the motion transmitting mechanism at the position of the target closer. The drive source generates a rotational motion, and the motion transmission mechanism is provided with an input shaft connected to the drive source, and a detection plate as the detection member can rotate integrally with the input shaft on the input shaft. connected, game machine according to claim 1 which is in the detection plate the detected part at a predetermined pitch in the circumferential direction is formed, it is characterized. The sensor has a pair of detection units arranged at a non-integer multiple pitch with respect to a pitch of the detected unit with respect to the moving direction of the detection member, and the signal processing device includes: The movement direction of the target is determined based on the phase difference of the pulse train of the detection signal output for each pair, and the acceleration is performed when the determined movement direction is a direction in which the target moves backward to the housing portion and the target is hit. calculating a game machine of claim 1 or 2, characterized in that.

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