Patent ID: 8915332

Claim:
A mechanical device ( 200 ) for reducing the energy absorbed by an electric motor (M) of a material and/or person handling system ( 2 ), wherein said device ( 200 ) comprises: a first rotating member ( 108 ), connected to an external rotor of said motor (M); a second rotating member ( 110 ), connected to the first rotating member ( 108 ) through first transmission means (T 1 ) that develops a transmission ratio substantially equal to unity; a third rotating member ( 112 ), connected to said second rotating member ( 110 ) through second transmission means (C) that develops a transmission ratio substantially equal to unity; a fourth rotating member ( 113 ), connected to the external rotor of said motor (M) on an opposite side of said motor (M) with respect to said first rotating member ( 108 ) and connected to said third rotating member ( 112 ) through third transmission means (T 2 ) that develops a transmission ratio substantially equal to unity, in which said fourth rotating member ( 113 ) rotates in a same direction as said first rotating member ( 108 ); a fifth rotating member ( 210 ), connected to said fourth rotating member ( 113 ) through fourth transmissions means (T 3 ) that develops a transmission ratio substantially equal to unity; a sixth rotating member ( 212 ) connected to said fifth rotating member ( 210 ) through fifth transmissions means (D) that develops a transmission ratio substantially equal to unity; said sixth rotating member ( 212 ) connected to said first rotating member ( 108 ) through sixth transmission means (T 4 ) that develops a transmission ratio substantially equal to unity; said second transmission means (C) comprising a series of bevel gears ( 114 , 115 , 116 , 119 ) comprising: a first bevel gear ( 114 ) and a second bevel gear ( 115 ) mounted in opposition and both meshed with first planetary gears ( 124 ); a third bevel gear ( 116 ) and a fourth bevel gear ( 119 ) mounted in opposition and both meshed with fourth planetary gears ( 125 ); the second bevel gear ( 115 ) and the third bevel gear ( 116 ) being fixed with respect to each other; said fifth transmission means (D) comprising a series of bevel gears ( 214 , 215 , 216 , 219 ) comprising: a fifth bevel gear ( 214 ) and a sixth bevel gear ( 215 ) mounted in opposition and both meshed with third planetary gears ( 224 ); a seventh bevel gear ( 216 ) and a eighth bevel gear ( 219 ) mounted in opposition and both meshed with fourth planetary gears ( 225 ); the sixth bevel gear ( 215 ) and the seventh bevel gear ( 216 ) being fixed with respect to each other.