公开(公告)号：US20250050513A1

公开(公告)日：2025-02-13

申请号：US18721385

申请日：2022-10-17

Applicant: BRIDGESTONE CORPORATION

Inventor： Hitoshi YASUI ,  Shungo FUJITA ,  Dyta ITOI

IPC: B25J15/00 ,  B25J15/08

Abstract: A fluid pressure actuator used as the grasping device 1 includes a cylindrical tube that expands and contracts under the pressure of a fluid, and a sleeve having a stretchable structure in which fiber cords oriented in a predetermined direction are woven and that covers an outer peripheral surface of the tube. A tip portion of the fluid pressure actuator is provided with a spoon-shape housing portion, and a partition plate that closes an opening surface of the housing portion when the fluid pressure actuator is non-curved or curved.

公开(公告)号：US20240286277A1

公开(公告)日：2024-08-29

申请号：US18569237

申请日：2022-07-11

Applicant: BRIDGESTONE CORPORATION

Inventor： Hajime KITANO ,  Yasumichi WAKAO ,  Hitoshi YASUI ,  Masahiro YAMAGUCHI ,  Hirohito SUGINO ,  Yusuke FUJISAWA

IPC: B25J9/16 ,  B25J9/10 ,  B25J13/08

CPC classification number: B25J9/163 ,  B25J9/1075 ,  B25J9/161 ,  B25J13/081 ,  B25J13/087

Abstract: A flexible material provided at a robot is conductive and an electrical characteristic of the flexible material changes in response to a change of state. The electrical characteristic between plural detection points of the robot is detected by a detection unit. An estimation unit uses a learning model to estimate a robot state from the electrical characteristic of the robot. The learning model is trained so as to input the electrical characteristic and output the robot state. The learning model is trained using, as training data, electrical characteristics when changes of state occur at the flexible material and robot states after the changes of state of the flexible material of the robot. The estimation unit inputs the electrical characteristic to the learning model and outputs the robot state corresponding to the inputted electrical characteristic.

公开(公告)号：US20200031184A1

公开(公告)日：2020-01-30

申请号：US16491441

申请日：2018-02-27

Applicant: BRIDGESTONE CORPORATION

Inventor： Yasuhiro UKEGAWA ,  Yukiko YAMAMOTO ,  Hitoshi YASUI ,  Shiina GOTO

IPC: B60C25/00 ,  G06Q50/30 ,  G07C5/00

Abstract: A tire position exchange proposal device calculates an inclination of degradation degree of tires per mounted position, calculates a degree of degradation of each tire in the first maintenance period according to a variation in degradation degree, calculates a degree of degradation of each tire in the second maintenance period for different tire position exchange patterns when a positional exchange of the tires is performed in the first maintenance period, selects a maximum degree of degradation from the degrees of degradation of the tires in the second maintenance period for each of the tire position exchange patterns, and selects a tire position exchange pattern to be proposed to a user in which the maximum degree of degradation is smaller than a reference value.

公开(公告)号：US20250020147A1

公开(公告)日：2025-01-16

申请号：US18713659

申请日：2022-10-11

Applicant: BRIDGESTONE CORPORATION

Inventor： Shungo FUJITA ,  Kentaro YOSHIZAWA ,  Hitoshi YASUI

IPC: F15B15/10 ,  F15B15/20

Abstract: The object is to improve the durability of fluid pressure actuators. The holding member with actuator cover according to this disclosure comprises: a holding section to be attached to a fluid pressure actuator driven by fluid pressure to hold an object; and an actuator cover that covers the fluid pressure actuator while the holding section is attached to the fluid pressure actuator.

公开(公告)号：US20240286278A1

公开(公告)日：2024-08-29

申请号：US18570640

申请日：2022-07-12

Applicant: BRIDGESTONE CORPORATION

Inventor： Hajime KITANO ,  Yasumichi WAKAO ,  Hitoshi YASUI ,  Masahiro YAMAGUCHI ,  Hirohito SUGINO ,  Yusuke FUJISAWA

IPC: B25J9/16 ,  B25J13/08 ,  B25J15/12 ,  B25J19/02

CPC classification number: B25J9/163 ,  B25J9/161 ,  B25J9/1612 ,  B25J13/083 ,  B25J15/12 ,  B25J19/02

Abstract: An estimating device including, a detecting section detecting electrical characteristics between a plurality of predetermined detection points of a flexible material, the electrical characteristics of the flexible material varying in accordance with changes in applied pressure, and that is disposed can cover a portion of a projecting portion, an estimating section that inputs time-series electrical characteristics to a learning model that is trained by using, as learning data, time-series electrical characteristics at times when pressure is applied to the flexible material, and applied stimulus state information expressing applied stimulus states in which pressure is applied to the flexible material, such that the time-series electrical characteristics are inputs of the learning model and the learning model outputs the applied stimulus state information, and the estimating section estimates applied stimulus state information expressing an applied stimulus state corresponding to the inputted time-series electrical characteristics.

公开(公告)号：US20250050512A1

公开(公告)日：2025-02-13

申请号：US18720060

申请日：2022-10-14

Applicant: BRIDGESTONE CORPORATION

Inventor： Shingo OONO ,  Hitoshi YASUI ,  Yukinori NAKAKITA

IPC: B25J15/00 ,  B25J9/14 ,  B25J15/10 ,  B25J15/12

Abstract: The grasping device 1 is a grasping device using a plurality of fluid pressure actuators 10 which are curved during contraction. In the bottom view of the grasping device 1, a tip portion of the fluid pressure actuator 10 overlaps with a tip portion of another fluid pressure actuator 10 when each of the fluid pressure actuators 10 contracts.

公开(公告)号：US20250027517A1

公开(公告)日：2025-01-23

申请号：US18713701

申请日：2022-09-28

Applicant: BRIDGESTONE CORPORATION

Inventor： Hitoshi YASUI

IPC: F15B15/10 ,  B25J9/14 ,  F03G7/00

Abstract: A fluid pressure actuator according to this disclosure is a fluid pressure actuator that expands and contracts by fluid pressure, including an attachment attached to the distal end side, wherein the attachment is a spatular portion including a holding surface at one side in the thickness direction, and the spatular portion includes: a thin-walled portion at the distal end side; and a bump thick-walled portion that is located at the proximal end side of the thin-walled portion and is thicker than the thin-walled portion by a bump portion that protrudes or is able to protrude on the holding surface.