Multiple-function actuation device particularly usable in ski boots

Multiple-function acutation device particularly for ski boots, comprising a containment body associable with a ski boot and supporting an actutation assembly for the actuation of at least two traction elements each connected to at least one movable element of said boot, said actuation assembly actuating at least one drive shaft kinematically connected at least to a first winder and to a second winder for a traction element, kinematic switching means being provided to kinematically connect said actuation assembly alternately to said first winder and to said secodn winder, means being furthermore provided for the releasable locking of the rotation in the direction of unwinding of said first winder and of said second winder, wherein said actuation assembly comprises an electric motor having a drive shaft, selectively rotatable in opposite directions and actuating a toothed wheel which selectively engages said first winder and said second winder, said actuation shaft being provided with an outer threading adapted to engage with a similar threading of said toothed wheel for the axial translatory motion of said toothed wheel which is provided with a lower front set of teeth and with an upper front set of teeth, wherein said second winder facing said lower set of teeth and said first winder facing said upper set of teeth are freely associated coaxially to said shaft, wherein said second winder comprises a first annular groove and a second annular groove acting as seats respectively for a traction element such a cable and means for the releasable locking of the rotation in the direction of unwinding, said second winder being provided, at its end facing said lower set of teeth of said wheel, with a first set of teeth, and wherein said first winder consists of a cylindrical body provided at one end with a longitudinal through seat for a traction element, at its other end there being provided a third annular groove acting as seat for a further means for the releasable locking of the rotation in the direction of unwinding, said first winder being provided with a second set of teeth arranged facing the upper set of teeth of said wheel which is movable with respect to the shaft of said electric motor.

Multiple-function actuation device particularly for ski boots, comprising:

• a containment body associable with a ski boot,
• at least two traction elements each connectable to a movable element of a ski boot,
• winders adapted for winding said traction elements and including at least one first winder and at least one second winder, said first winder and said second winder each defining a direction of winding and a direction of unwinding,
• drive shaft means kinematically connected to said first winder and said second winder,
• an actuation assembly supported by said containment body and being adapted for actuating said drive shaft means,
• means for operating said actuating assembly,
• kinematic switching means cooperating with said drive shaft means for kinematically connecting said actuation assembly alternately to said first winder and to said second winder, and
• brake means for independently releasably locking rotation of said first winder and said second winder at least in said direction of unwinding.

Mutliple-function actuation device particularly for ski boots, comprising;

• a containment body associable with a ski boot,
• at least two traction elements each connectable to a movable element of a ski boot,
• winders adapted for winding said traction elements and including at least one first winder and at least one second winder, said first winder and said second winder each defining a direction of winding and a direction of unwinding,
• drive shaft means kinematically connected to said first winder and said second winder,
• an actuation assembly supported by said containment body and being adapted for actuating said drive shaft means,
• power assisted means adapted for operating said actuating assembly,
• kinematic switching means cooperating with said drive shaft means for kinematically connecting said actuation assembly alternately to said first winder and to said second winder, and
• brake means for frictionally releasably locking rotation of said first winder and said second winder at least in said direction of unwinding,
• wherein said drive shaft means comprise at least one inner shaft and at least one outer shaft, said inner shaft being arranged coaxial to said outer shaft and connected to a first kinematic transmission means, said first kinematic transmission means being connected to said first winder, said outer shaft being connected to second kinematic transmission means, said second kinematic transmission means being connected to said second winder.