Crane game machine

Abstract

The invention relates mainly to a fairground claw crane (1) comprising a chassis (2) extending along a longitudinal axis Z and having a lower control part (3) and an upper game part (4) including a compartment for prizes to be won (5), the crane (1) further comprising a device for gripping the prizes (6) in the compartment (5) and control means housed in the lower part of the crane (3) and comprising a control unit for the means of movement and a human-machine interface (7) connected to the control unit, characterized in that the crane (1) comprises side walls (8) of which at least one is emissive and comprises a light pattern emission panel (9) having a plurality of light emission units (10) electrically connected in series and individually controlled by the control means.

Description

[0001] The invention falls within the field of gaming machines.

[0002] The invention relates more particularly to a fairground grab crane, also known as a plush crane or plush grabber.

[0003] US2011 / 80998A1 describes a fairground crane according to the preamble of claim 1. Fairground cranes with grippers are gaming machines generally installed at fairs. Such a machine comprises a chassis which extends along a longitudinal axis Z, which in practice is a vertical axis, and in which is provided a housing closed by side walls, at least one of which is transparent, and a roof of the machine chassis. An exit to the outside of the machine is also provided in the housing. In use, prizes to be won are placed by the owner of the machine in the housing.

[0004] The machine also includes a motorized gripper installed in the housing at the roof of the machine, above the prizes to be won, as well as means for controlling this gripper which themselves include a human-machine interface allowing a player to control the movement of the gripper to attempt to grasp a prize and then move it with the gripper towards the exit from the housing.

[0005] The gripping clamp is integrated into a gripping device which comprises motorized means for moving the clamp along the longitudinal axis of the machine and along two transverse axes X, Y perpendicular to each other and to the longitudinal axis Z.

[0006] In operation, the player controls the movement of the gripper at a constant speed in a single direction at a time. In other words, to grab a batch, the player must move the gripper along the three axes X, YZ successively.

[0007] One disadvantage of this fairground crane is the lack of precision in the movement of the gripper. Another disadvantage is the premature wear of the motorized means of movement of the gripping device.

[0008] Furthermore, the crane includes walls that emit light and in particular light patterns that are correlated with the game offered by the crane. However, in a gaming room, it is common for a plurality of machines to be installed side by side, each emitting its own light pattern, which affects the consistency of the display. Furthermore, in the event of a breakdown of the light emission means, maintenance often proves to be long and costly.

[0009] To overcome the various drawbacks mentioned above, the invention aims to propose a fairground crane type machine comprising a more precise and more resistant gripping device.

[0010] The invention also aims to provide a fairground crane with optimized maintenance.

[0011] Finally, the invention aims to propose a fairground crane allowing coherent light emissions.

[0012] To this end, the invention relates to a fairground crane with gripper comprising a chassis extending along a longitudinal axis Z and comprising a lower control part and an upper game part comprising a housing for prizes to be won, the crane further comprising a device for gripping the prizes in the housing and control means housed in the lower part of the crane and comprising a unit for controlling the movement means and a man-machine interface connected to the control unit, which crane comprises side walls, at least one of which is emissive and comprises a light pattern emission panel comprising a plurality of light emission units electrically connected in series and controlled individually by the control means.

[0013] The fairground crane may also include the following optional features considered individually or in all possible technical combinations: The emissive wall comprises a translucent panel and in that the slab is arranged against an inner face of said translucent panel. The control means are configured to control the color and intensity of the light signals emitted by each emission unit of the slab. The housing of the upper game part is delimited by a lower wall, an upper wall opposite, and side walls of which at least one is transparent, the device for gripping the prizes in the housing comprising: an articulated gripping gripper; motorized means for moving the gripper comprising at least a first transverse movement unit along a first transverse axis X, a second transverse movement unit along a second transverse axis Y perpendicular to the first transverse axis X,and a third unit for longitudinal movement of the gripper along the longitudinal axis Z between an initial position and a position for gripping at least one batch in the housing, and which human-machine interface comprises a controller movable between an equilibrium position in which the gripper is stationary and a plurality of cantilevered positions in which the gripper is in movement in a transverse plane defined by the transverse axes X and Y,and the first and second transverse displacement units are concomitantly actuable by the control unit which is configured to correlate any cantilevered position of the controller with the direction of movement of the gripper in the transverse plane. The anchor plate comprises at least two symmetrical legs which extend on either side of the housing body from said housing body. The control unit is configured to correlate any cantilevered position of the controller with the power supplied by the motors of the first and second transverse displacement units. The controller is of the joystick type tiltable between its equilibrium position and a plurality of positions inclined relative to the equilibrium position, in that the control unit is configured to correlate the direction of tilt of the joystick in its considered inclined position with the direction of movement of the gripper in the transverse plane,and to correlate the angle of inclination of the joystick in its inclined position considered relative to its equilibrium position with the power supplied by the motors of the first and second transverse displacement units. The third displacement unit comprises means for determining the position of the clamp along the Z axis relative to its initial position. The displacement unit comprises a cable secured to the clamp and a motorized winder of said cable controlled by the control means,and in that the means for determining the position of the clamp along the Z axis comprise at least one magnet secured to the reel and a Hall effect type sensor for reading the magnet connected to the control means for determining the position of the reel and the winding state of the cable. The control means are configured to adapt the unwinding speed of the cable as a function of the position of the clamp relative to its initial position along the longitudinal axis Z.,

[0014] The invention also relates to a fairground crane with gripper comprising a chassis extending along a longitudinal axis Z and comprising a lower control part and an upper game part comprising a housing for prizes to be won delimited by a lower wall, an upper wall opposite, and side walls of which at least one is transparent, the crane further comprising a device for gripping the prizes in the housing comprising: an articulated gripping clamp; motorized means for moving the clamp comprising at least a first transverse movement unit along a first transverse axis X, a second transverse movement unit along a second transverse axis Y perpendicular to the first transverse axis X, and a third longitudinal movement unit of the clamp along the longitudinal axis Z between an initial position and a position for gripping at least one batch in the housing, and the lower control part comprising control means comprising a unit for controlling the movement means and a human-machine interface connected to the control unit, which human-machine interface comprises a controller movable between an equilibrium position in which the gripper is stationary and a plurality of cantilevered positions in which the gripper is in movement in a transverse plane defined by the transverse axes X and Y, and the first and second transverse movement units are concomitantly actuable by the control unit which is configured to correlate any cantilevered position of the controller with the direction of movement of the gripper in the transverse plane.

[0015] The fairground crane may also include the following optional features considered individually or in all possible technical combinations: The crane comprises side walls, at least one of which is emissive, and comprises a light pattern emitting panel comprising a plurality of light emitting units electrically connected in series and individually controlled by the control means. The emissive wall comprises a translucent panel and in that the panel is arranged against an inner face of said translucent panel. The control means are configured to control the color and intensity of the light signals emitted by each emitting unit of the panel. The anchor plate comprises at least two symmetrical legs which extend on either side of the housing body from said housing body. The control unit is configured to correlate any cantilevered position of the controller with the power supplied by the motors of the first and second transverse displacement units.The controller is of the joystick type tiltable between its equilibrium position and a plurality of positions inclined relative to the equilibrium position, in that the control unit is configured to correlate the direction of tilt of the joystick in its considered inclined position with the direction of movement of the gripper in the transverse plane, and to correlate the angle of tilt of the joystick in its considered inclined position relative to its equilibrium position with the power supplied by the motors of the first and second transverse displacement units. The third displacement unit comprises means for determining the position of the gripper along the Z axis relative to its initial position.The movement unit comprises a cable secured to the clamp and a motorized reel of said cable controlled by the control means, and in that the means for determining the position of the clamp along the Z axis comprise at least one magnet secured to the reel and a Hall effect type sensor for reading the magnet connected to the control means to determine the position of the reel and the state of winding of the cable. The control means are configured to adapt the unwinding speed of the cable as a function of the position of the clamp relative to its initial position along the longitudinal axis Z.

[0016] The invention also relates to a set of at least two fairground cranes as described previously comprising a synchronization station, the transmission tiles of said cranes being electrically connected to each other and to the synchronization station, and in that said synchronization station is configured to synchronize the transmission tiles of said cranes with each other.

[0017] Other characteristics and advantages of the invention will emerge clearly from the description given below, for information purposes only and in no way limiting, with reference to the appended figure: [ Fig 1 ] There figure 1 represents a perspective view of the fairground crane type machine according to the invention. Fig 2 ] There figure 2 represents a front view of part of an emissive slab. Fig 3a ] [ Fig 3b ] [ Fig 3c ] THE figures 3a à 3c represent a sequence of movement of the gripping clamp in a transverse plane of the fairground crane. Fig 4 ] There figure 4 represents a side view of the gripper housing and the Z-axis movement unit of the gripping gripper. Fig 5 ] There figure 5 represents a view of a detail of the means for determining the position of the clamp along the Z axis. [ Fig 6 ] There figure 6 is a schematic view of a set of fairground cranes according to the invention.

[0018] It is first of all specified that in the figures, the same references designate the same elements regardless of the figure in which they appear and regardless of the form of representation of these elements. Similarly, if elements are not specifically referenced in one of the figures, their references can be easily found by referring to another figure.

[0019] It is also specified that the figures essentially represent one embodiment of the subject of the invention but that there may be other embodiments which meet the definition of the invention.

[0020] In reference to the figures 1 à 6 , the invention relates to a fairground crane type machine 1 with gripper 15 comprising a chassis 2 which extends along a longitudinal axis Z. To ensure proper operation of the fairground crane 1, this longitudinal axis Z is a vertical axis.

[0021] The chassis 2 comprises a plurality of profiles 21 extending along the Z axis, forming the edges of the fairground crane 1. Conventionally, the chassis 2 has the shape of a right parallelepiped and therefore comprises four profiles 21.

[0022] The chassis 2 further comprises a bottom transverse wall, an upper roof transverse wall 13, and a lower transverse wall 12 opposite the upper wall 13 and which separates the fairground crane 1 into an upper play part 4 and a lower control part 3.

[0023] The upper game part 4 comprises side walls 14 of which at least one is transparent, and preferably all the side walls 14 are transparent. These side walls 14, the upper wall 13 and the lower wall 12 opposite each other delimit a receiving housing 5 for a plurality of prizes to be won.

[0024] The crane 1 further comprises a device 6 for gripping the batches arranged in the upper part 4 and which comprises a motorized gripping clamp 15 (partially visible on the figure 4 ), and motorized displacement means 16 of said clamp 15. These motorized displacement means 16 comprise a first transverse displacement unit 17 along a first transverse axis X, a second transverse displacement unit 18 along a second transverse axis Y perpendicular to the first transverse axis X, and a third longitudinal displacement unit 19 of the clamp 15 along the axis Z between an initial position and a position for gripping at least one batch in the housing. These displacement units 17, 18, 19 are visible on the figures 3a à 3c

[0025] The first movement unit 17 along the X axis comprises at least one first linear guide means 30 extending along the X axis in the housing 5 and a clamp holder housing 22 which is movable in translation along said first guide means 30.

[0026] The second movement unit 18 along the Y axis comprises at least one second guide means 31 extending along the Y axis and secured to the chassis 2 of the crane 1. Typically, the second guide means 31 comprises two rails 32 facing each other extending along the Y axis, the first guide means 30 being arranged between these two rails 32 and mounted to slide along the Y axis on said two rails 32. The sliding of the first guide means 30 on the second guide means 31 is ensured by a controlled motorized unit 33.

[0027] The third movement unit 19 along the Z axis comprises a cable 26 whose end is secured to the clamp 15 and a motorized winder 17 of the cable 26 comprising a plurality of wheels 34, 35, 36 (see figure 4 ) rotatably mounted on the clamp holder housing 22. The clamp 15 is in fact movable along the Z axis between an initial position ( figure 4 ) in contact with the clamp holder box 22 and a final position for gripping a batch in the housing 5.

[0028] The lower control part of the fairground crane comprises control means 45 ( figure 6 ), which comprises a unit for controlling the movement means 16 provided with a human-machine interface 7 which allows a player to control the movement of the gripper 15. Advantageously, this human-machine interface 7 comprises a controller 20 of the joystick or analog stick type which allows the player to move the gripper 15 in the transverse plane P defined by the X and Y axes. In particular and according to the invention, the joystick 20 is movable between an equilibrium position in which the gripper 15 is stationary and a plurality of so-called cantilevered positions in which the gripper 15 is in movement in the transverse plane P.

[0029] By cantilever position is meant an inclined position of the joystick 20 relative to its equilibrium position.

[0030] The human-machine interface 7 further comprises a trigger button 37 which initiates the movement of the gripper 15 along the Z axis from its initial position to its position for gripping the batch in question.

[0031] The lower part 3 also comprises a device for triggering a game 38 operating with tokens or coins. This triggering device comprises a token insertion slot and is connected to the control means 45 to send them a signal for triggering a game when the player has inserted the desired number of tokens.

[0032] The lower control part 3 also comprises opaque side walls 8, at least one of which comprises a recovery opening 39 for the prizes won which communicates with the prize housing 5 via an opening 40 provided in the lower transverse wall 12 of the upper game part 4.

[0033] According to the invention, the walls 8 of the lower control part 3 of the crane 1 are emissive and comprise at least one translucent panel 11 and at least one light emission slab 9 arranged against the inner face of said translucent panel 11. Thus, the emissive face of the slab 9 is parallel to the inner face of the translucent panel 11, which ensures light emission over the entire panel 11.

[0034] Furthermore, without departing from the scope of the invention, the crane 1 comprises emissive walls formed in the profiles 21 of the chassis 22 as well as an emissive lateral facade 41 at the level of the upper wall 13 of the chassis 2.

[0035] The fairground crane 1 therefore comprises a plurality of translucent panels 11 and emissive tiles 9 electrically connected to each other via a connector 42 provided on each tile 9, each tile 9 comprising a plurality of light-emitting units 10, for example light-emitting diodes electrically connected in series.

[0036] The emitting tiles 9 of the fairground crane 1 are furthermore controlled by the control means 45, which are capable of individually controlling each diode 10 of each emitting tile 9. In particular, the control means 45 individually control the color and the light intensity of the signal emitted by each of the diodes 10 of the emitting tiles 9.

[0037] This individual control of each diode 10 coupled with the positioning of the emissive tiles 9 behind translucent panels 11 allows the control means to generate static or dynamic light patterns which are diffused over the entirety of the translucent panels 11 of the crane 1.

[0038] For example and in a non-limiting manner, the size of the diodes 10 is between 2 and 5 mm, and the diodes 10 of each panel 9 are regularly spaced, the distance between two diodes 10 being between 7 and 40 mm, and is preferably of the order of 25 mm. The greater the concentration of diodes 10 on an emissive panel 9, the better the definition and brightness of the patterns generated via the control means 45.

[0039] Furthermore, it is possible to vary the distance separating the emissive face of the slab 9 from the translucent panel 11: the closer the luminous slab 9 is to the panel 11, the more pixelated the pattern will be, that is to say that each light signal emitted by each diode 10 will be identifiable independently of the others by the human eye. Conversely, the further the luminous slab 9 is from the panel 11, the more uniform and diffused the lighting will be in the translucent panel 11.

[0040] According to the invention and with reference to the figure 6 , two or more fairground cranes 1 installed in the same playing area are electrically connected to each other via a synchronization station 43 to form a set 44 of fairground cranes 1. This synchronization station 43 is connected to the control means 45 of said cranes 1 and makes it possible to synchronize the display of the tiles 9 of all the cranes 1 connected to each other.

[0041] In particular, the synchronization station 43 can allow the display of a single light pattern which spreads over several adjacent cranes 1 of the set 44. According to a variant, the displayed pattern is limited to a single crane 1, and the synchronization station 43 allows a synchronized display of the patterns on the different cranes 1. In addition to an aesthetic effect, these synchronized displays make it possible to highlight the players.

[0042] According to the invention and with reference to the figures 3a à 3c , the first and second transverse displacement units 17, 18 are concomitantly actuable by the control means 45 which are configured to correlate any cantilevered position of the controller 20 with the direction of movement 24 of the gripper 15 in the transverse plane P.

[0043] In other words, when the player moves the joystick 20 from its equilibrium position to an inclined position, the control means 45 detects the inclination direction 23 of the joystick 20 and controls the movement of the clamp 15 in the transverse plane P of axes X and Y in this same direction 24.

[0044] Furthermore, the control means are configured to correlate any cantilever position of the controller 20 with the power supplied by the motors of the first and second transverse displacement units 17, 18.

[0045] In particular, the control unit detects the angle of inclination of the joystick 20 relative to its equilibrium position, and correlates this angle with the power supplied to the motors of the first and second transverse displacement units 17, 18. Thus, if the angle of inclination is small, the transverse displacement speed of the gripper 15 is also small, while if the angle of inclination is large, the transverse displacement speed of the gripper 15 is also large.

[0046] Advantageously, the transverse movement speed of the clamp 15 is proportional to the angle of inclination of the joystick 20: if the angle of inclination in the considered inclined position of the joystick represents 45% of the maximum angle of inclination of the joystick 20, then the transverse movement speed of the clamp 15 in the transverse plane P represents 45% of the maximum movement speed.

[0047] Finally, and in a particularly advantageous manner, the speed and direction of movement 24 of the gripper 15 in the plane P is variable during the same game session: the player, by modifying the direction 23 and the angle of inclination of the joystick 20, modifies in real time the direction of movement 24 and the speed of movement of the gripper 15 in the transverse plane 15. The invention thus allows the player to position the gripper more precisely above the prize that he wishes to win. It should also be noted that when the joystick returns to its equilibrium position during the game session, the means of movement 16 of the gripper 15 are stopped in a determined position 46.

[0048] According to the invention and with reference to the figures 4 et 5 , the cable reel 27 of the third displacement unit 19 along the longitudinal axis Z comprises a first motorized grooved wheel 34 and controlled by the control means 45. One end of the cable 26 is secured in the groove of said first motorized wheel 34. To prevent the cable 26 from becoming tangled during the winding and unwinding operations, the reel 27 comprises a second free-rotating grooved wheel 35 and a third free-rotating grooved wheel 36: the direction of rotation of the second wheel 35 is the opposite of the directions of rotation of the first and third wheels 34, 36.

[0049] According to the invention, the third displacement unit 19 along the Z axis comprises means for determining the position 25 of the clamp 15 along the Z axis relative to its initial position. In particular, these means for determining the position 25 of the clamp 15 along the Z axis comprise at least one magnet 28 secured to the third freewheel 36 of the reel 27 and a Hall effect type sensor 29 for reading the magnet 28 connected to the control means 45 to determine the position of the reel 27 and the winding state of the cable 26. The Hall effect sensor 29 is secured to the clamp holder housing 22 and arranged opposite the third freewheel 36.

[0050] Furthermore and with reference to the figure 5, the determination means comprise four magnets 28 arranged circumferentially on the third freewheel 36. The number of magnets 28 determines the precision of the determination of position along the Z axis: the more magnets 28 there are, the greater the precision of determination of the position along the Z axis.

[0051] Thus, when the player has positioned the gripper 15 above the batch that he wishes to catch using the joystick 20, he activates the third longitudinal movement unit 19 of the gripper 15 along the Z axis using the trigger button 37 of the human-machine interface 7 to move the gripper 15 from its initial position to its batch-grabbing position.

[0052] The control means then control the rotation of the first motorized wheel 34 which unwinds the cable 26, which moves the clamp towards the batch. At the same time, the control means: open the jaws of the clamp 15, determine in real time, via the Hall effect sensor 29, the position of the clamp 15 along the Z axis, and adapt the unwinding speed of the cable 26 as a function of the position of the clamp 15 along the Z axis relative to its initial position: the further the clamp 15 is from its initial position along the Z axis, the more the unwinding speed of the cable 26 decreases, which increases the gripping precision of the batch.

[0053] Finally, once the final position along the Z axis of the clamp 15 has been reached, the control means 45 actuate the jaws to close the clamp 15.

[0054] If the jaws close completely, the control means 45 conclude that a batch has not been grasped and control the third displacement unit along the longitudinal axis Z so that the clamp 15 returns to its initial position, then the first and second transverse displacement units 17, 18 move the clamp 15 to a rest position, for example in an upper corner of the housing 5 of the crane 1.

[0055] If the jaws only partially close, the control means 45 conclude that a batch has been captured and control on the one hand the third displacement unit 19 along the longitudinal axis Z so that the clamp 15 returns to its initial position along the axis Z, and on the other hand the first and second transverse displacement units 17, 18 to automatically position the clamp above the opening 40 formed in the lower wall 12 of the housing 5. The three displacement units 17, 18, 19 can be actuated simultaneously.

[0056] The control means 45 then successively control the opening of the jaws to release the lot which becomes accessible to the player via the opening 39 provided in the wall in question 8 of the lower control part 3 of the crane 1, then the closing of the jaws. Finally, the control means 45 actuate the first and second transverse displacement units 17, 18 along the X and Y axes to move the clamp 15 to the rest position, for example in an upper corner of the housing.

[0057] The embodiment described above is in no way limiting, and modifications may be made thereto without departing from the scope of the invention. For example, one could imagine other means of determining the position of the gripper along the Z axis, for example an optical encoder.

[0058] The person skilled in the art will also understand that the gripping device 6 which comprises an articulated gripping clamp and motorized displacement means 16 of the clamp 15 comprising at least a first transverse displacement unit 17 along a first transverse axis X, a second transverse displacement unit 18 along a second transverse axis Y perpendicular to the first transverse axis X, and a third longitudinal displacement unit 19 of the clamp 15 along the longitudinal axis Z between an initial position and a position for gripping at least one batch in the housing 5, the first and second transverse displacement units (17, 18) being concomitantly actuable by the control unit which is configured to correlate any cantilevered position of the controller 20 with the direction of movement of the clamp 15 in the transverse plane P, can be installed on any type of fairground crane 1, whether or not it is provided with the emissive walls 8.

[0059] Finally, those skilled in the art will also understand that the emissive walls 8 of the invention can be installed on any type of fairground crane 1, and advantageously on any type of gaming machine comprising a chassis.

Claims

1. Claw crane game machine (1) comprising a frame (2) extending along a longitudinal axis Z and having a lower control portion (3) and an upper game portion (4) comprising a housing for prizes to be won (5) that is delimited by a lower wall (12), an opposite upper wall (13), and side walls (14), at least one of which is transparent, the crane machine (1) further comprising side walls (8), at least one of which is emissive and comprises a display for emitting light patterns (9) having a plurality of light-emitting units (10), which are electrically connected in series and controlled individually by control means of the crane machine (1) that are housed in the lower control portion (3), and a device for grabbing prizes (6) in the housing (5), comprising: • an articulated grabbing claw (15); • motor-driven movement means (16) for moving the claw (15) comprising at least a first transverse movement unit (17) for transverse movement along a first transverse axis X, a second transverse movement unit (18) for transverse movement along a second transverse axis Y perpendicular to the first transverse axis X, and a third longitudinal movement unit (19) for moving the claw (15) longitudinally along the longitudinal axis Z between an initial position and a position for grabbing at least one prize in the housing; said control means comprising a control unit for controlling the movement means and a human-machine interface (7) connected to the control unit and comprising a controller (20) that can be moved between an equilibrium position in which the claw (15) is immobile and a plurality of cantilevered positions in which the claw is moving in a transverse plane (P) defined by the transverse axes X and Y, said first and second transverse movement units (17, 18) being able to be actuated concomitantly by the control unit, which is configured to correlate any cantilevered position of the controller (20) with the direction of movement of the claw (15) in the transverse plane (P), characterized in that the control unit is configured to correlate any cantilevered position of the controller (20) with the power supplied by the motors of the first and second transverse movement units (17, 18).

2. Crane game machine (1) according to the preceding claim, characterized in that the emissive wall (8) comprises a translucent panel (11) and in that the display (9) is arranged against an inner face of said translucent panel (11).

3. Crane game machine (1) according to Claim 1 or 2, characterized in that the control means are configured to control the colour and the intensity of the light signals emitted by each emitting unit (10) of the display (9).

4. Crane game machine (1) according to any one of the preceding claims, characterized in that the controller (20) is a joystick controller that can be inclined between its equilibrium position and a plurality of positions that are inclined with respect to the equilibrium position, in that the control unit is configured to correlate the direction of inclination (23) of the joystick (20) in its inclined position considered with the direction of movement (24) of the claw (15) in the transverse plane (P), and to correlate the angle of inclination of the joystick (20) in its inclined position considered with respect to its equilibrium position with the power supplied by the motors of the first and second transverse movement units (17, 18).

5. Crane game machine (1) according to the preceding claim, characterized in that the third movement unit (19) comprises means for determining the position (25) of the claw (15) along the axis Z with respect to its initial position.

6. Crane game machine (1) according to the preceding claim, characterized in that the third movement unit (19) comprises a cable (26) secured to the claw (15) and a motor-driven reel (27) for said cable (26) that is controlled by the control means, and in that the means for determining the position (25) of the claw (15) along the axis Z comprise at least one magnet (28) secured to the reel (27) and a Hall-effect sensor (29) for reading the magnet (28) connected to the control means in order to determine the position of the reel (27) and the reeling state of the cable (26).

7. Crane game machine (1) according to Claim 5 or 6, characterized in that the control means are configured to adapt the reeling speed of the cable (26) on the basis of the position of the claw (15) with respect to its initial position along the longitudinal axis Z.

8. Set of at least two crane game machines (1) according to any one of the preceding claims, comprising a synchronization station, characterized in that the emitting displays (9) of said crane machines (1) are electrically connected to one another and to the synchronization station, and in that said synchronization station is configured to synchronize the emitting displays (9) of said crane machines (1) with one another.

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