Apparatus for allowing ventilation as usual for underground tunnels through a ventilation shaft opening to atmosphere yet preventing underground flooding from surface waters pouring through the grate, comprises an assembly that fits within the ventilation shaft and includes one or more panels held in an upright home position that allows ventilation as usual but is releasable to rotationally gravitate to a lower sealing position closing a passage between the ventilation shaft and atmosphere to prevent water from entering the underground tunnels. A panel position indicator moves from a hidden position to a visible position with lowering of the panels to visually signify that the panels are lowered and that flooding protection is activated.

A vehicle-door opening/closing control device includes a controller, which controls the operation of a drive device. The controller is configured to supply drive power based on a voltage of an in-vehicle power supply to an electromagnetic clutch. The controller is also configured such that, when stopping an opening/closing body at an intermediate position, the controller supplies the drive power based on the voltage of the in-vehicle power supply to the electromagnetic clutch to put the clutch in the engaged state, and then stops the supply of drive power to the electromagnetic clutch so that the clutch is in the disengaged state after a predetermined holding time has elapsed since the controller has stopped the opening/closing body at the intermediate position. The predetermined holding time differs between a case where the trapping of the foreign object is detected and a case where the opening/closing manipulation is detected.

A vehicle door unit comprises a rotating lever supported rotatably about a first shaft at a first end, a door mounting coupled rotatably about a second shaft to a second end of the rotating lever, a door attached to the door mounting and being configured to cover an opening in a vehicle and to close off a vehicle interior, and a drive unit configured to rotate the rotating lever about the first shaft between a closed position and an open position. The rotating lever is configured to move the second shaft, on a movement from the closed position to the open position, on a circular path, due to which the door mounting is first moved into the vehicle interior and, on further rotation of the rotating lever, out of the vehicle interior.

A swing door actuation system for moving a door about a pivot axis between open closed positions relative to a vehicle body. The system includes a power swing door actuator having a housing connectable to one of the swing door and the vehicle body, an extensible member that moves relative to the housing, and connects to the other of the swing door and the vehicle body, a motor connected to a gear train, and a normally engaged clutch. The motor is operatively connected to a clutch input end through the gear train. The output end is operatively connected to the extensible member. The clutch is disengageable to disconnect the motor from the extensible member. The clutch has a slip torque that is sufficiently high to prevent movement of the door when the door is exposed to less than a selected external torque and the motor is stopped.

An electrically powered vehicle tailgate operator for pivoting a tailgate of a pickup truck about a horizontal tailgate axis near a bottom edge of the tailgate. The vehicle tailgate operator comprises a cable spool for spooling a cable and a drive gear for transmitting torque from the drive shaft to the cable spool. The vehicle tailgate operator also has a retention system. The cable spool, the drive actuator, the drive shaft, the drive gear, and the retention system are arranged inside of a housing, wherein the spool axis is oriented in parallel to the drive shaft axis and the spool axis is arranged on the same height or above the drive shaft axis.

An actuation device for a flap mounted pivotably on a compartment, with a push-push kinematic, includes a first actuation part to be fastened on the flap and a second actuation part to be fastened on the component. The first actuation part engages with the second actuation part when the flap is moved from its opened position into its closed position, so that after a first stroke of the first actuation part in the direction of the second actuation part and a subsequent backstroke of the first actuation part, the actuation parts are held on each other in an arresting position. The arresting position is released by a second stroke of the first actuation part in the direction of the second actuation part so that the flap can be moved into its opened position, wherein the first actuation part and the second actuation part are disengaged.

An actuator for opening and closing a hinged device is provided. In particular, the actuator is a power tailgate actuator. The actuator comprises a motor with a rotor, and an output shaft that rotates on an axis which is substantially parallel to the axis on which lies the rotor of the motor. The actuator has a rotary position sensor such as a rotary potentiometer which positively identifies the position of the tailgate. The tailgate also comprises a clutch which can engage and disengage depending on the mode of operation.

A door assembly for a motorized vehicle includes a door configured to move between an open position and a closed position, a first member defining a first axis, and a first support member pivotally coupled to the door and defining a second axis. A linkage assembly includes a first arm and a second arm. The first arm and the second arm are pivotally coupled to one another, where the first arm is coupled to the first member at a location offset from the first axis and the second arm defines a first slot. A cross member has a first end and a second end. The first end has a first pin for slideably engaging the first slot and the second end being coupled to the first member. The door is movable between the open and closed positions as the first member pivots about the first axis.

A door assembly for a motorized vehicle includes a door configured to move between an open position and a closed position, a first member defining a first axis, and a first support member pivotally coupled to the door and defining a second axis. A linkage assembly includes a first arm and a second arm. The first arm and the second arm are pivotally coupled to one another, where the first arm is coupled to the first member at a location offset from the first axis and the second arm defines a first slot. A cross member has a first end and a second end. The first end has a first pin for slideably engaging the first slot and the second end being coupled to the first member. The door is movable between the open and closed positions as the first member pivots about the first axis.

A door assembly for a motorized vehicle includes a door configured to move between an open position and a closed position, a first member defining a first axis, and a first support member pivotally coupled to the door and defining a second axis. A linkage assembly includes a first arm and a second arm. The first arm and the second arm are pivotally coupled to one another, where the first arm is coupled to the first member at a location offset from the first axis and the second arm defines a first slot. A cross member has a first end and a second end. The first end has a first pin for slidably engaging the first slot and the second end being coupled to the first member. The door is movable between the open and closed positions as the first member pivots about the first axis.