Target launching device

Abstract

A device for launching targets is described, including a launching arm movable in rotation about an axis A1 and a system for driving in rotation the launching arm, where the drive system includes an electric gear motor whose output shaft is secured in rotation to the launching arm.

1 . A device for launching targets, comprising a launching arm movable in rotation about an axis A 1  and a system for driving in rotation the launching arm, wherein the drive system comprises an electric gear motor whose output shaft is secured in rotation to the launching arm, wherein the drive system comprises a member for piloting in rotation the gear motor, the piloting member being configured to control a first angular displacement Da 1 , called positioning displacement of target, at a first rotational speed ω 1 , of the launching arm to a starting position Pd of target. 
     
     
         2 . The device according to  claim 1 , wherein the output shaft and the launching arm are directly coupled. 
     
     
         3 . The device according to  claim 1 , wherein the piloting member is configured so as to vary the starting position Pd. 
     
     
         4 . The device according to  claim 1 , the piloting member being configured such that the positioning displacement passes a target from an original position Po to the starting position of target. 
     
     
         5 . The device according to  claim 1 , wherein the piloting member is configured to control a second angular displacement Da 2 , called projection displacement of target, at a second rotational speed ω 2 , of the launching arm from the starting position Pd of target, the second rotational speed ω 2  being greater than the first rotational speed ω 1 . 
     
     
         6 . The device according to  claim 4  in combination, wherein the piloting member is configured to control a third angular displacement Da 3 , called return displacement, at a third rotational speed ω 3 , of the launching arm to the original position Po. 
     
     
         7 . The device according to  claim 1 , wherein the arm includes a fastening device for fastening the stub of the output shaft. 
     
     
         8 . The device according to  claim 1 , wherein the electric gear motor comprises a brushless motor. 
     
     
         9 . The device according to  claim 1 , comprising a launching plate, configured to support at least one target to be launched, and a member for holding said target in position, this member being configured to exert a pressure on the target in the direction of the launching plate. 
     
     
         10 . The device according to  claim 9 , wherein the holding member comprises a blade mounted on the launching arm configured to apply, on said target, a pressure directed towards the launching plate. 
     
     
         11 . A method for launching at least one target comprising a phase of projecting at least one target from a starting position Pd, by rotation of a launching arm exerting a thrust on the at least one target, wherein the rotation of the launching arm is produced by an electric gear motor whose launching arm is secured in rotation, wherein it comprises:
 a first angular displacement Dal, called target positioning displacement, at a first rotational speed ω 1 , of the launching arm to a starting position of target, the starting position being variable;   a second angular displacement Da 2 , called projection displacement of target, at a second rotational speed ω 2 , of the launching arm from the starting position of target, the second rotational speed ω 2  being adjustable and greater than the first rotational speed ω 1 .   
     
     
         12 . The method according to  claim 11 , comprising a third angular displacement Da 3 , called return displacement, at a third rotational speed ω 3 , of the launching arm to an original position.