A closure system for a motor vehicle cargo bed includes a closure panel having a plurality of slats moveable between a deployed position and a retracted position, with each adjacent pair of the slats being pivotably connected to one another by a hinge unit for pivotal movement of the adjacent slats about a hinge axis. First and second guide track units are configured to be mounted to one side of the cargo bed to extend adjacent opposite side edge portions of the closure panel. A plurality of roller units, each having first and second rollers, are supported along the opposite side edge portions of the cover panel for rolling movement along the first and second guide track units, with each roller unit rolling about a roller axis that is coaxially aligned with one of the hinge axes.

A closure system for a motor vehicle cargo bed includes a closure panel having a plurality of slats moveable between a deployed position and a retracted position, with each adjacent pair of the slats being pivotably connected to one another by a hinge unit for pivotal movement of the adjacent slats about a hinge axis. First and second guide track units are configured to be mounted to one side of the cargo bed to extend adjacent opposite side edge portions of the closure panel. A plurality of roller units, each having first and second rollers, are supported along the opposite side edge portions of the cover panel for rolling movement along the first and second guide track units, with each roller unit rolling about a roller axis that is coaxially aligned with one of the hinge axes.

A drive unit for a sliding arrangement, in particular a sliding door, includes a carriage, which is formed for linearly mobile mounting in relation to a sub-structure of the sliding arrangement, a deflection roller rotatable around a roller axis at the carriage for deflecting a drive belt of the sliding arrangement, and a tensioning device, having a shaft with male thread rotatable around a shaft axis, a first shaft reception with female thread for receiving the male thread of the shaft, a second shaft reception for linear mobile reception of the shaft, and a compression spring between the second shaft reception and a spring abutment at the shaft. The shaft is disposed for tensioning the drive belt by increasing the distance between the first shaft reception and the second shaft reception.

A door drive for arrangement on or in connection with a door system, whereby at least one leaf element of the door system is movable. The door drive includes a motor unit with a housing, in which a stator is stationarily received, and wherein a rotor is arranged so as to be rotationally-movable in the housing and includes an output shaft, wherein the output shaft can be brought into operative connection in a driving manner with the leaf element. The rotor includes a support body, on which receiving fields are formed, on which permanent magnets are adhered.

A door drive for arrangement on or in connection with a door system, whereby at least one leaf element of the door system is movable. The door drive includes a motor unit with a housing, in which a stator is stationarily received, and wherein a rotor is arranged so as to be rotationally-movable in the housing and includes an output shaft, wherein the output shaft can be brought into operative connection in a driving manner with the leaf element. The rotor includes a support body, on which receiving fields are formed, on which permanent magnets are adhered.

A belt tensioning system (170) for tensioning a belt (171) of a belt drive system (970) for transferring torque from a drive unit (112) of a door operating system (100) to a sliding door leaf (101) of a sliding door assembly (200), the belt tensioning system comprising a belt wheel (176) connectable to the belt (171) for torque transfer between said belt wheel (176) and an additional belt wheel (175) of the belt drive system (970); a belt wheel guiding arrangement (330), the belt wheel (176) being movably connected to said belt wheel guiding arrangement (330); and a belt tensioning arrangement (470) operatively connecting the belt wheel (176) and the belt wheel guiding arrangement (330) for adjusting the position of the belt wheel (176) relative the belt wheel guiding arrangement (330).

A belt tensioning system (170) for tensioning a belt (171) of a belt drive system (970) for transferring torque from a drive unit (112) of a door operating system (100) to a sliding door leaf (101) of a sliding door assembly (200), the belt tensioning system comprising a belt wheel (176) connectable to the belt (171) for torque transfer between said belt wheel (176) and an additional belt wheel (175) of the belt drive system (970); a belt wheel guiding arrangement (330), the belt wheel (176) being movably connected to said belt wheel guiding arrangement (330); and a belt tensioning arrangement (470) operatively connecting the belt wheel (176) and the belt wheel guiding arrangement (330) for adjusting the position of the belt wheel (176) relative the belt wheel guiding arrangement (330).

The present invention includes a height raising member body mountable to an upper end of a frame disposed above an entrance of a car that moves up and down through an elevator shaft, in which a rail for guiding a car door in an opening and closing direction and a pulley for use in opening and closing drive of the car door are mounted to the frame. The height raising member body characteristically includes: a base part connectable to the frame; and a supporting part capable of supporting the motor at a position upward away from the base, the motor being configured to drive the pulley via a belt.

The present invention includes a height raising member body mountable to an upper end of a frame disposed above an entrance of a car that moves up and down through an elevator shaft, in which a rail for guiding a car door in an opening and closing direction and a pulley for use in opening and closing drive of the car door are mounted to the frame. The height raising member body characteristically includes: a base part connectable to the frame; and a supporting part capable of supporting the motor at a position upward away from the base, the motor being configured to drive the pulley via a belt.

A vehicle side structure includes: a vehicle body side structure including a boarding opening through which an occupant gets into and out of a vehicle; a sliding door configured to slide to open and close the boarding opening; an upper support structure; a middle support structure; a lower support structure; and a drive unit located in an upper portion of the vehicle body side structure and configured to drive the sliding door to open and close via at least a part of the upper support structure. The upper support structure, the middle support structure, and the lower support structure are configured to support the sliding door in upper, middle, and lower portions of the vehicle body side structure in a vertical direction of a vehicle such that the sliding door slides, respectively.