公开(公告)号：US20220136568A1

公开(公告)日：2022-05-05

申请号：US17576394

申请日：2022-01-14

Applicant: DENSO CORPORATION

Inventor： Souichirou HAYASHI ,  Takumi SUGIURA ,  Akira TAKAGI

IPC: F16D23/12 ,  F16H57/02 ,  F16H37/12 ,  H02K7/108 ,  H02K7/116

Abstract: A rotational translation unit includes a rotation portion that rotates relative to a housing upon receiving an input of torque output from a speed reducer, and a translation portion that moves relative to the housing in an axial direction according to rotation of the rotation portion relative to the housing. A clutch is provided between a first transmission portion and a second transmission portion that are rotatable relative to the housing, and the clutch allows transmission of the torque between the first transmission portion and the second transmission portion in an engaged state of the clutch, and interrupts the transmission of the torque between the first transmission portion and the second transmission portion in a disengaged state of the clutch. A return spring is capable of urging the rotational translation unit in a direction away from the clutch relative to the housing.