公开(公告)号：US20240052913A1

公开(公告)日：2024-02-15

申请号：US18384113

申请日：2023-10-26

Applicant: DENSO CORPORATION

Inventor： Kazuki MARUO

IPC: F16H19/02

CPC classification number: F16H19/02

Abstract: A speed reducer-equipped motor includes a motor, first gear, eccentric shaft, and stopper protrusions. The speed reducer-equipped motor also includes a transmission gear, an output member, a rotation stopper, and an interference avoider. The transmission gear revolves around an axis of the first gear following rotation of the first gear along with the eccentric shaft. The output member rotates following the revolution of the transmission gear. The rotation stopper works to stop the transmission gear from rotating the center thereof in response to sliding motion of the stopper protrusions on the rotation stopper. The interference avoider is arranged between the rotation stopper and the transmission gear and works to avoid physical or mechanical interference of corners of the rotation stopper which are located close to the stopper protrusions with base end portions of the stopper protrusions.

公开(公告)号：US20230078759A1

公开(公告)日：2023-03-16

申请号：US17990926

申请日：2022-11-21

Applicant: DENSO CORPORATION

Inventor： Kazuki MARUO ,  Isamu ADACHI ,  Tomoki YAMASHITA

IPC: B60N2/16 ,  B60N2/02

Abstract: The vehicle seat includes: a seat cushion; a seat back; a lifter link mechanism wherein the seat cushion is displaced by a sector gear being displaced; and a speed reducer-equipped motor including a pinion gear engaging with the sector gear; and a first and second restriction portions that stop the rotation of the pinion gear to one side. The sector gear is displaced to one side by the pinion gear being rotated to one side. The displacement of the sector gear to one side is stopped by the rotation of the pinion gear to one side being stopped by the first and second restriction portions. The sector gear is displaced to the other side by the pinion gear being rotated to the other side. The rotation of the pinion gear to the other side is stopped by the displacement of the sector gear to the other side being restricted.

公开(公告)号：US20240052914A1

公开(公告)日：2024-02-15

申请号：US18384446

申请日：2023-10-27

Applicant: DENSO CORPORATION

Inventor： Kazuki MARUO

IPC: F16H19/02

CPC classification number: F16H19/02

Abstract: A speed reducer-equipped motor includes a motor, a helical gear, an eccentric shaft, a stationary gear with a second stopper, a transmission gear, an output gear unit, and a lock gear with a first stopper. The first stopper mechanically contacts with the second stopper, thereby stopping the lock gear from revolving and rotating to stop the rotation of the output gear unit. A physical load which is generated by the contact of the first stopper with the second stopper and acts on that contact and a physical load which is generated by the contact of the first stopper and the second stopper and acts on meshed portions of teeth of the first stopper and the second stopper are oriented in opposite directions.

公开(公告)号：US20230081857A1

公开(公告)日：2023-03-16

申请号：US17990975

申请日：2022-11-21

Applicant: DENSO CORPORATION

Inventor： Masahito SAKAI ,  Kazuki MARUO

IPC: H02K7/116 ,  F16H1/32

Abstract: A speed reducer-equipped motor of the present disclosure includes a housing to which a motor is fixed and that has a speed reducer housing recess, and a helical gear and a locking gear that are accommodated in the speed reducer housing recess. A spring is provided between the helical gear and the locking gear, and reduces wobbling of the helical gear, the locking gear, and the like in the speed reducer housing recess.

公开(公告)号：US20220099161A1

公开(公告)日：2022-03-31

申请号：US17427230

申请日：2020-09-01

Applicant: DENSO CORPORATION

Inventor： Kazuki MARUO ,  Masahito SAKAI ,  Fumihiro SHIMIZU

IPC: F16H1/32 ,  H02K7/116

Abstract: A speed reducer includes a helical gear, an eccentric shaft and a slider plate. The speed reducer also includes a transmission gear and an output gear body. The transmission gear is supported at a first support part, transmission gear spinning is restricted by engagement with the slider plate, and the transmission gear revolves by the helical gear rotating with the eccentric shaft. The output gear body rotates by the transmission gear revolving. The transmission gear includes a pair of restricting protrusions protruding toward the slider plate side. The restricting protrusions have engaging surfaces that touch the slider plate wherein the engaging surfaces oppose the slider plate in a radial direction of the transmission gear. Surfaces at opposite sides of the restricting protrusions from the slider plate are formed, as seen in the axis direction of the transmission gear, to be convex to the opposite sides thereof from the slider plate.

公开(公告)号：US20210324942A1

公开(公告)日：2021-10-21

申请号：US17258912

申请日：2019-07-08

Applicant: DENSO CORPORATION

Inventor： Masahito SAKAI ,  Kazuki MARUO ,  Tomoki YAMASHITA ,  Fumihiro SHIMIZU ,  Hiroyuki OKADA

IPC: F16H1/32 ,  H02K7/116

Abstract: A speed reducer including: a first gear; an eccentric shaft joined to the first gear, the eccentric shaft has first and second supporting portions offset in a rotation radial direction with respect to a first gear rotation shaft; a fixed gear at an eccentric shaft radial direction outer side, and whose rotation is restricted; a transmitting gear supported at the first supporting portion and meshes with the fixed gear, and the transmitting gear revolves around the first gear rotation shaft and rotates around its own axis; an outputting portion rotating due to the transmitting gear revolving and rotating around its own axis; and a locking gear supported at the second supporting portion and meshes with the fixed gear, and the locking gear revolves around the first gear rotation shaft and rotates around its own axis, and rotation of the outputting portion is restricted.