Patent ID: 8671620

Claim:
A motorized split-hinge device for a door that includes a flap ( 1 ) that is mounted to pivot around an essentially vertical axis of rotation ( 1 ′) on a frame ( 2 ), the device comprising: a stationary split-hinge part ( 3 ) that is integral with said frame ( 2 ) and a movable split-hinge part ( 4 ) that is integral with said flap ( 1 ) and is mounted in rotation relative to said stationary split-hinge part ( 3 ) around a pivoting shaft ( 5 ), said movable split-hinge part ( 4 ) comprising a drive mechanism ( 6 , 8 ) that is driven by a motor unit ( 7 ) able to drive said movable split-hinge part ( 4 ) in rotation around said pivoting shaft ( 5 ), said motor unit ( 7 ) being mounted in a removable manner on said drive mechanism ( 6 , 8 ) and on the stationary split-hinge part ( 3 ), and attached to the stationary split-hinge part using means for quick attachment and release ( 9 , 10 ), and being kept in a drive position of said drive mechanism ( 6 , 8 ) with anti-rotational locking of said motor unit ( 7 ) relative to the flap ( 1 ), wherein the motor unit ( 7 ) comprises a drive hub ( 12 ), and wherein the drive mechanism comprises a drive shaft ( 6 ) that extends the movable split-hinge part ( 4 ) coaxially to said pivoting shaft ( 5 ), and means for connection and driving in rotation ( 8 , 11 ) that drives, through said drive hub ( 12 ), said drive shaft ( 6 ) in axial rotation, and wherein the drive hub ( 12 ) passes through a forward post ( 7 ″) of the motor unit ( 7 ) and has two opposing lower and upper surfaces, passed through perpendicularly by said drive hub ( 12 ) that opens onto said two opposing lower and upper surfaces through two openings, respectively lower opening ( 12 ′) and upper opening ( 12 ″), so as to allow introduction of the drive shaft ( 6 ) into said drive hub ( 12 ) through the lower opening ( 12 ′), and holding the drive shaft ( 6 ) in place with axial locking in said drive hub ( 12 ) using a stop ( 6 ′) that is attached in a removable way to the part of the free end of said drive shaft ( 6 ) that projects from the upper opening and comes to rest against the upper surface, preventing withdrawal of said drive shaft ( 6 ) from said drive hub ( 12 ).