Machine for setting up bowling pins enabling selection of the set-up of one or a plurality of pins in chosen positions

A secondary positioning system intended to be integrated in machines for setting up bowling pins in predetermined positions comprising:

• a movable distributing arm arranged to release the pins one by one each at one of the predetermined positions;
• a primary positioning system arranged to position the distributing arm with respect to the predetermined positions, the primary positioning system having an operating cycle moving the distributing arm according to a fixed sequence;
• a lifting wheel, which delivers the pins to the distributing arm;
• and
• at least one motor, which moves the primary positioning system and the lifting wheel, the at least one motor moving the primary positioning system through the fixed sequence by a driving wheel;
• wherein the secondary positioning system comprises:
• a presence sensor mounted to the distributing arm, which emits a first signal in response to a pin delivered to the distributing arm by the lifting wheel;
• a first actuator, between the at least one motor and the lifting wheel, which disengages the at least one motor from the lifting wheel in response to the first signal so that the lifting wheel stops after each pin is delivered to the distributing arm;
• a second actuator connected to actuate the driving wheel to move the primary positioning system and thus the distributing arm a selected number of positions of the fixed sequence in response to a second signal received from a control system and corresponding to a pin position chosen by a user from the predetermined positions.