Vehicle door device
A vehicle door device includes first and second link arms each including a first pivotal connection point to a vehicle body and a second pivotal connection point to a door of a vehicle, and a drive unit that opens and closes the door based on an operation of a link mechanism formed by the first and second link arms by using at least one of the first and second link arms as a drive link and pivoting the drive link. The drive unit includes an actuator that outputs drive torque, and a transmission mechanism that transmits the drive torque to the drive link disposed at a position separated from the actuator. The transmission mechanism includes a torque input portion that inputs the drive torque to the drive link, and a power transmission member that forms a transmission path for the drive torque in a state of extending between the actuator and the torque input portion and has flexibility to enable transmission of the drive torque in a bent state.
1 . A vehicle door device comprising:
first and second link arms each including a first pivotal connection point to a vehicle body and a second pivotal connection point to a door of a vehicle; and
a drive unit that opens and closes the door based on an operation of a link mechanism formed by the first and second link arms by using at least one of the first and second link arms as a drive link and pivoting the drive link, wherein
the drive unit includes
an actuator that outputs drive torque, and
a transmission mechanism that transmits the drive torque to the drive link disposed at a position separated from the actuator, and
the transmission mechanism includes
a torque input portion that inputs the drive torque to the drive link, and
a power transmission member that forms a transmission path for the drive torque in a state of extending between the actuator and the torque input portion and has flexibility to enable transmission of the drive torque in a bent state.
2 . The vehicle door device according to claim 1 , wherein
the transmission mechanism includes an abutment member that abuts on the power transmission member to bend the power transmission member.
3 . The vehicle door device according to claim 1 , wherein
the power transmission member is a drive belt that is rotationally driven in a state of being wound around a pulley.
4 . The vehicle door device according to claim 1 , wherein
the transmission mechanism is configured to allow a twisted positional relationship set between an output shaft of the actuator and a rotation shaft of the drive link pivoting due to an input of the drive torque.
5 . The vehicle door device according to claim 1 , wherein
the torque input portion is supported by the vehicle body in a state of being held by a vehicle body bracket forming the first pivotal connection point, and
the actuator is supported by the vehicle body by being held by a holding bracket provided independently of the vehicle body bracket, in a state where an output shaft of the drive torque is disposed at a position separated from the torque input portion.
6 . The vehicle door device according to claim 1 , wherein
the actuator and the torque input portion are disposed at positions that do not overlap with each other when viewed from above in a vehicle-mounted state.
7 . The vehicle door device according to claim 2 , wherein
the power transmission member is a drive belt that is rotationally driven in a state of being wound around a pulley.
8 . The vehicle door device according to claim 2 , wherein
the transmission mechanism is configured to allow a twisted positional relationship set between an output shaft of the actuator and a rotation shaft of the drive link pivoting due to an input of the drive torque.
9 . The vehicle door device according to claim 2 , wherein
the torque input portion is supported by the vehicle body in a state of being held by a vehicle body bracket forming the first pivotal connection point, and
the actuator is supported by the vehicle body by being held by a holding bracket provided independently of the vehicle body bracket, in a state where an output shaft of the drive torque is disposed at a position separated from the torque input portion.
10 . The vehicle door device according to claim 2 , wherein
the actuator and the torque input portion are disposed at positions that do not overlap with each other when viewed from above in a vehicle-mounted state.