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公开(公告)号：US20190094086A1
公开(公告)日：2019-03-28
申请号：US15926819
申请日：2018-03-20
Applicant: TRI-FORCE MANAGEMENT CORPORATION
Inventor： Kazuhiro OKADA , Satoshi ERA , Miho OKADA
IPC: G01L1/14
Abstract: The present invention is to provide a capacitive force sensor that is inexpensive but highly sensitive, and is hardly affected by temperature changes and in-phase noise in the use environment.A force sensor 100c includes: a deformable body 10 having a force receiving portion 14 and a fixed portion 15; a displacement body 20 that is connected to the deformable body 10, and is displaced by elastic deformation caused in the deformable body 10; and a detection circuit 40 that detects an applied force, in accordance with the displacement caused in the displacement body 20. The deformable body 10 includes a tilting portion 13 that has a longitudinal direction I and is disposed between the force receiving portion 14 and the fixed portion 15. The displacement body 20 includes displacement portions D1 and D2 that are connected to the tilting portion 13 and are displaced by tilting movement of the tilting portion 13. The detection circuit 40 includes capacitive elements C1 and C2 disposed at the displacement portions D1 and D2, and detects an applied force, in accordance with changes in the capacitance values of the capacitive elements C1 and C2.
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公开(公告)号：US20200240854A1
公开(公告)日：2020-07-30
申请号：US15761415
申请日：2017-03-06
Applicant: TRI-FORCE MANAGEMENT CORPORATION
Inventor： Kazuhiro OKADA , Satoshi ERA
Abstract: A force sensor according to the present invention includes: an annular deformable body arranged to surround an origin O when viewed in the Z-axis direction and configured to generate elastic deformation by application of one of a force and a moment; and a detection circuit that outputs an electric signal indicating one of the applied force and the moment on the basis of the elastic deformation generated in the deformable body. The deformable body includes: two fixed portions fixed with respect to the XYZ three-dimensional coordinate system; two force receiving portions positioned alternately with the fixed portions in a circumferential direction of the deformable body and configured to receive application of one of the force and the moment; and four deformable portions positioned between the fixed portion and the force receiving portion adjacent to each other in the circumferential direction of the deformable body, and each of the deformable portions includes a curved portion protruding in the Z-axis direction, and the detection circuit outputs the electric signal on the basis of elastic deformation generated in the curved portion.
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Patent Agency Ranking
公开(公告)号：US20200256750A1
公开(公告)日：2020-08-13
申请号：US15763163
申请日：2018-02-09
Applicant: TRI-FORCE MANAGEMENT CORPORATION
Inventor： Kazuhiro OKADA , Satoshi ERA
Abstract: A force sensor according to the present invention includes a closed loop shaped deformable body and a detection circuit that outputs an electric signal indicating an applied force or a moment on the basis of elastic deformation generated in the deformable body. The deformable body includes at least two fixed portions, at least two force receiving portions adjacent to the fixed portion in a closed loop shaped path of the deformable body, and a deformable portion positioned between the fixed portion and the force receiving portion adjacent to each other in the closed loop shaped path. The deformable portion includes: a main curved portion having a curved main curved surface; a fixed portion-side curved portion connecting the main curved portion to the corresponding fixed portion and having a fixed portion-side curved surface; and a force receiving portion-side curved portion connecting the main curved portion to the corresponding force receiving portion and having a force receiving portion-side curved surface. Both of the curved surfaces are provided on the positive side on the Z-axis or the negative side on the Z-axis of the deformable portion, with mutually different curved directions. The detection circuit outputs an electric signal on the basis of elastic deformation generated in the main curved portion.
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公开(公告)号：US20160211778A1
公开(公告)日：2016-07-21
申请号：US14914854
申请日：2014-05-15
Applicant: TRI-FORCE MANAGEMENT CORPORATION
Inventor： Kazuhiro OKADA , Satoshi ERA , Miho OKADA
IPC: H02N2/18 , H01L41/113 , H01L41/053
CPC classification number: H02N2/186 , H01L41/053 , H01L41/1136 , H02N2/188
Abstract: The power generation efficiency is to be enhanced by converting vibration energy including various direction components into electric energy without waste. A cantilever structure is adopted, in which a first plate-like bridge portion (120) and a second plate-like bridge portion (130) extend in a shape of a letter U from a fixing-portion (110) fixed to the device housing (200) and a weight body (150) is connected to the end. On the upper surface of the cantilever structure, a common lower layer electrode (E00), a layered piezoelectric element (300) and discrete upper layer electrodes (Ex1 to Ez4) are formed. The upper layer electrodes (Ez1 to Ez4) disposed on a center line (Lx, Ly) of each plate-like bridge portion take out charge generated in the piezoelectric element (300) due to deflection caused by the Z-axis direction vibration of the weight body (150). The upper layer electrodes (Ex1 to Ex4, Ey1 to Ey4) disposed on both sides of the center line (Lx, Ly) of the plate-like bridge portion take out charge generated in the piezoelectric element (300) due to deflection caused by the X-axis or Y-axis direction vibration of the weight body (150).
Abstract translation: 通过将包括各种方向分量的振动能量转换成电能而不浪费，可以提高发电效率。 采用悬臂结构，其中第一板状桥接部分（120）和第二板状桥接部分（130）从固定到装置壳体（110）的固定部分（110）延伸成字母U的形状 （200）和重量体（150）连接到端部。 在悬臂结构的上表面上，形成共同的下层电极（E00），层叠型压电元件（300）和离散的上层电极（Ex1〜Ez4）。 设置在每个板状桥接部分的中心线（Lx，Ly）上的上层电极（Ez1至Ez4）由于压电元件（300）的Z轴方向振动引起的偏转而导致在压电元件（300）中产生的电荷 体重（150）。 设置在板状桥接部分的中心线（Lx，Ly）两侧的上层电极（Ex1至Ex4，Ey1至Ey4）由于由于压电元件（300）的偏移而导致在压电元件（300）中产生的电荷 重量体（150）的X轴或Y轴方向振动。
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公开(公告)号：US20190323904A1
公开(公告)日：2019-10-24
申请号：US16502815
申请日：2019-07-03
Applicant: TRI-FORCE MANAGEMENT CORPORATION
Inventor： Kazuhiro OKADA , Satoshi ERA , Miho OKADA
Abstract: The present invention is to provide a capacitive force sensor that is inexpensive but highly sensitive, and is hardly affected by temperature changes and in-phase noise in the use environment.A force sensor 100c includes: a deformable body 10 having a force receiving portion 14 and a fixed portion 15; a displacement body 20 that is connected to the deformable body 10, and is displaced by elastic deformation caused in the deformable body 10; and a detection circuit 40 that detects an applied force, in accordance with the displacement caused in the displacement body 20. The deformable body 10 includes a tilting portion 13 that has a longitudinal direction 1 and is disposed between the force receiving portion 14 and the fixed portion 15. The displacement body 20 includes displacement portions D1 and D2 that are connected to the tilting portion 13 and are displaced by tilting movement of the tilting portion 13. The detection circuit 40 includes capacitive elements C1 and C2 disposed at the displacement portions D1 and D2, and detects an applied force, in accordance with changes in the capacitance values of the capacitive elements C1 and C2.
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公开(公告)号：US20190212215A1
公开(公告)日：2019-07-11
申请号：US15764762
申请日：2018-01-09
Applicant: Tri-Force Management Corporation
Inventor： Kazuhiro OKADA , Miho OKADA , Satoshi ERA
Abstract: A force sensor includes: a deformable body having a force receiving portion and a fixed portion; a displacement body configured to generate a displacement by elastic deformation generated in the deformable body; and a detection circuit configured to detect an applied force on the basis of the displacement generated in the displacement body, in which the deformable body includes: a tilting portion arranged between the force receiving portion and the fixed portion; a first deformable portion that connects the force receiving portion and the tilting portion; and a second deformable portion that connects the fixed portion and the tilting portion, the displacement body includes a displacement portion connected to the tilting portion and separated from the fixed portion, the detection circuit includes a first displacement sensor and a second displacement sensor arranged in the displacement portion, and the detection circuit outputs a first electric signal indicating an applied force on the basis of a detection value of the first displacement sensor, and outputs a second electric signal indicating an applied force on the basis of a detection value of the second displacement sensor, and then determines whether force detection is performed normally on the basis of the first electric signal and the second electric signal.
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公开(公告)号：US20190190405A1
公开(公告)日：2019-06-20
申请号：US15759482
申请日：2017-07-26
Applicant: TRI-FORCE MANAGEMENT CORPORATION
Inventor： Kazuhiro OKADA , Miho OKADA , Satoshi ERA
IPC: H02N2/18
Abstract: A power generating element according to the present invention includes: a support frame formed in a frame shape in plan view; a vibrating body provided inside the support frame; a first bridge portion and a second bridge portion that supports the vibrating body on the support frame; and a charge generating element to generate a charge at the time of displacement of the vibrating body. The support frame includes a first frame portion arranged on a first side with respect to the vibrating body and includes a second frame portion arranged on a second side opposite to the first side with respect to the vibrating body. The first bridge portion couples the vibrating body with the first frame portion. The second bridge portion couples the vibrating body with the second frame portion.
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