公开(公告)号：US12155273B2

公开(公告)日：2024-11-26

申请号：US17362473

申请日：2021-06-29

Applicant: MAKITA CORPORATION ,  MINEBEA MITSUMI INC.

Inventor： Takaharu Nakatsuka ,  Yuta Izutsu ,  Kotaro Eguchi ,  Kui Li

IPC: B25B21/00 ,  B25B23/147 ,  H02K7/10 ,  H02K7/14 ,  H02K11/02 ,  H02K11/24 ,  H02K11/30

Abstract: A screwing machine includes a motor, an output shaft, a twist portion, a plate portion, a strain gauge, an amplification circuit. The output shaft is driven by the motor. To the output shaft, a bit is attachable. The twist portion is hollow. To the twist portion, torque applied to the output shaft is transmitted through a transmission element. The output shaft is configured to be indirectly twisted by the torque applied to the output shaft. The plate portion is integrally formed with the twist portion. The strain gauge is disposed on the twist portion. The amplification circuit is disposed on the plate portion. To the amplification circuit, a signal from the strain gauge is input.

公开(公告)号：US12193980B2

公开(公告)日：2025-01-14

申请号：US18690772

申请日：2022-09-14

Applicant: MINEBEA MITSUMI Inc.

Inventor： Kui Li ,  Manabu Tanaka

IPC: A61G7/012 ,  A61G13/06

Abstract: Provided is a fixing member used in a support structure (100) for a bed. The support structure includes a lower frame (10), an upper frame (20), a raising/lowering mechanism (30) configured to raise and lower the upper frame with respect to the lower frame and including a support shaft (312) extending in a width direction of the bed, and a supported member (221, 222) fixed to the upper frame and supported by the support shaft. The support shaft moves in a longitudinal direction of the bed while supporting the supported member when the upper frame is raised and lowered. The fixing member includes a plurality of fixing tools (S11 to S14) configured to fix the supported member to the upper frame. Each of the plurality of fixing tools includes a flexure element (SB) fixed to the upper frame at one end and fixed to the supported member at the other end, and a strain gauge (SG) attached to the flexure element.

公开(公告)号：US11060928B2

公开(公告)日：2021-07-13

申请号：US16956864

申请日：2018-12-26

Applicant: MINEBEA MITSUMI Inc.

Inventor： Kui Li ,  Kotaro Eguchi

IPC: G01L1/00 ,  G01L1/22 ,  H05K13/04

Abstract: Provided is a load sensor that may precisely detect a load of pressing force to an object. A load sensor to be used for a multiaxial actuator (10) that has a drive rod (12) that linearly moves in an axial direction in a state where the drive rod (12) is contained in a housing (11), and a suction rod (22) that is arranged in parallel with the drive rod (12), linearly moves at the same time as the drive rod (12) in the axial direction, and has a tip end portion (22a) to be pressed, when a chip is to be suctioned, against the chip, includes a coupling member (30) that couples the drive rod (12) and the suction rod (22), in which the coupling member (30) has a first coupling part (31) that couples the drive rod (12), and a second coupling part (32) that couples the suction rod (22) in an integrated state, and the first coupling part (31) has a strain body part (311) that is formed to be thinner than the second coupling part (32) and supports the drive rod (12), and strain gauges (41) to (44) attached to the strain body part (311).

公开(公告)号：US10955303B2

公开(公告)日：2021-03-23

申请号：US16956808

申请日：2018-12-26

Applicant: MINEBEA MITSUMI Inc.

Inventor： Kui Li ,  Kotaro Eguchi

IPC: G01L5/00 ,  H05K13/04

Abstract: Provided is a load sensor that can precisely detect a load of pressing force to an object. A load sensor to be used for a multiaxial actuator (10) that has a drive rod (12) that linearly moves in an axial direction in a state where the drive rod (12) is contained in a housing (11), and a suction rod (22) that is arranged in parallel with the drive rod (12), linearly moves at the same time as the drive rod (12) in the axial direction, and has a tip end portion (22a) to be pressed, when a chip is to be suctioned, against the chip, includes a coupling member (30) that couples the drive rod (12) and the suction rod (22), the coupling member (30) has a first coupling part (31) that couples the drive rod (12), and a second coupling part (32) that couples the suction rod (22), and a neck part (33) that is provided between the first coupling part (31) and the second coupling part (32) and formed to be thinner than the first coupling part (31) and the second coupling part (32), and the neck part (33) includes strain gauges (41) to (44) attached to a front surface of the neck part (33).