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JP7101364B2 |
To provide a screw member capable of performing management of fixation strength without complicating a structure of the screw member.A screw member unit 10 includes a main body male screw part 13 which is provided on the shaft direction ...
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JP7096602B2 |
To solve a problem in the conventional technology that takes time one by one for checking whether an existing volt comes in a screw hole in an inspection jig, and also another conventional technology that performs a confirmation inspecti...
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JP7077489B2 |
A fastener, in particular of a chassis component, has at least one sensor and at least one transmitter of a monitoring device for monitoring at least one mechanical fastening parameter. At least one power supply unit is associated with t...
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JP2022071656A |
To provide a fastening state determination device capable of simply fastening a fastening member with appropriate axial force.A fastening state determination device 220 comprises a color acquisition unit 331, a determination unit 333, an...
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JP7064529B2 |
To propose a high-strength bolt capable of imparting a hydrogen embrittlement resistance characteristic without changing the composition of a conventional steel material.A high-strength bolt is made of a first metal, and comprises a head...
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JP7063786B2 |
A spring device (4) comprises a plurality of disc springs (42) accommodated in a cylindrical body (41), and a washer (43) that is urged by the plurality of disc springs (42). The washer (43) has a bottom-end part (43b) that withdraws int...
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JP2022065963A |
To provide a neck-cut bolt capable of reliably shearing a head at the time of fastening, and further capable of more reducing a generation amount of scrap than conventional arts.A neck-cut bolt is formed with a head 13 at the upper end o...
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JP2022523353A |
The present invention is, for example, a mounted threaded rod and two non-deformable washers (2a, 2b), an inner surface (20a, 20b), an outer surface (21a, 21b), and an outer wall (22a, 22b). ), And between two non-deformable washers (2a,...
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JP7038539B2 |
A load-indicating washer for use with a fastener. The washer is comprised of a circular base plate, a domed cap that projects from the base plate, a cavity formed between the circular base plate and the domed cap, and a fastener hole tha...
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JP2022041452A |
To provide a screw and a method of controlling fastening of the same which can inspect fastening force relatively easily regardless of a shape or a size, and can adjust the fastening force without requiring an additional member during fa...
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JP7033957B2 |
To provide a fastening bolt fastening torque specifying device and fastening torque specifying method with which it is possible to specify the fastening torque in the current state of a fastening bolt without directly touching the existi...
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JP7032659B2 |
A looseness detection structure configured to detect looseness between a bolt and a nut that fix two components including a conductive film configured to be attached on a surface of the component, the surface of the component including a...
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JP2022031213A |
To provide a junction structure capable of restricting a displacement between steel members by utilizing a shear capacity of a bolt, and the bolt to be used for this junction structure.A junction structure 1 connects overlapped members b...
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JP7016626B2 |
To provide a fastening torque management tool (2) capable of sufficiently increasing fastening torque through it can be comparatively inexpensively manufactured from a synthetic resin, and minimizing cracking of each angular portion of a...
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JP2022021084A |
To provide a rail clamp device capable of facilitating exhibition of performance based on a design.A connection member 24 has a bearing 28 provided to permit inclination of a loading device 2 and a clamp 21 relative to each other. In thi...
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JP6998844B2 |
To have a pulling device screwed to a portion different from the shank of a bolt and pulling the bolt, thereby reducing an error in axial force detection, etc.Provided is a pulling device 1 for pulling upward a bolt 10, with a washer 11 ...
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JP6989916B2 |
To join a plate member to a structure with a construction which does not easily slip along a longitudinal direction of the structure without deteriorating strength of the structure.A structure joint metal fitting 1 includes: a plate memb...
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JP2021196243A |
To automatically detect abnormality of a bolt fastening structure.A bolt fastening structure S comprises: a first electroconductive component 1 and a second electroconductive component 2; an insulating gasket 3 sandwiched between the fir...
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JP6976490B1 |
The inspection system (1) includes a displacement information acquisition unit (24), an estimation unit (26), and a determination unit (17). The displacement information acquisition unit (24) acquires displacement information, which is i...
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JP2021183925A |
To allow for highly accurately assessing the state of a fastening target.A bolt-type sensor device 30 is provided, comprising a threaded tip portion 32, a bolt head portion 31 thicker than a threaded portion 32A, an intermediate shaft po...
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JP6968658B2 |
A bolt arrangement may connect at least two mechanical elements. The arrangement may provide a bolt including an outer circumferential peripheral surface extending in a longitudinal direction of the bolt, and a sleeve presenting an outer...
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JP6961113B1 |
To provide a screw connection method and a screw device. In the screw connection method, in a state where the axis Z of the cap 2 and the axis X of the nozzle portion 11 are overlapped with each other, the cap 2 is attached to the body p...
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JP6960338B2 |
A high-strength screw (1) includes a head (2) and a threaded portion (5) including a thread (6) and a thread end (9) facing away from the head (2) in an axial direction. The threaded portion (5) includes an unhardened portion (12) starti...
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JP2021175957A |
To provide an axial force evaluation method for a screw member capable of evaluating looseness of the screw member of much more kinds.A method for evaluating axial force of a screw member includes the steps of: acquiring first vibration ...
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JP2021173543A |
To provide a device for detecting fastening strength without processing a fastening member, so as to transmit the detection value by radio wave.A fastening strength detection device has a cylindrical shape where a shaft part of fastening...
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JP6951193B2 |
To provide a novel fastening torque management tool capable of fastening not only a bolt but also a nut with predetermined torque, and provide novel combination of the fastening torque management tool and a fastener.A fastening torque ma...
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JP2021131145A |
To provide a bolt of which fastening state can be readily checked.A bolt 20 includes: a shank 21A; and a head 21B provided in one end of the shank 21A and formed with a recess part 21c, where a structural color part 22 for providing a st...
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JP2021119313A |
To provide a structural fastener which provides resistance to occurrence of internal structural damage to an aircraft from electromagnetic effect (EME) of a lightning strike.A fastener assembly includes a bolt having a head and having a ...
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JP2021116862A |
To suppress excessive fastening of a fastening member.In a fastening structure 10 in which a second component 30 is fastened to a first component 20 by a bolt 40, a collar member 50 is disposed within a mounting hole 31 of the second com...
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JP6906053B2 |
A torque assembly including an outer component, an inner component fitted within the outer component, and a tolerance ring provided between the outer component and the inner component to transmit torque between the inner and outer compon...
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JP3232830U |
To provide a screw having a tightened display function capable of quickly and easily visually confirming that the screw has been tightened. A screw body 1 having a head 2 having a square hole 3 for fitting a screw tightening tool in the ...
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JP6898633B2 |
To provide a light-weight alloy bolt.A constitution of this invention in which a male thread is advanced into a female thread by a force equal to or more than a torque F1 and fastened there and the screw shaft part is broken at a value e...
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JP2021099158A |
To provide an actuator arranging structure in an adjusting member, and a corresponding manufacturing method.An actuator (1) has at least one guide component (4) for guiding an actuator output component. The guide component penetrates at ...
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JP3232778U |
To provide a screw cap having a tightened display function capable of easily visually confirming that a screw has been tightened. A square fitting portion 10a in which a cap 10 can be fitted into a square hole 3 of a screw head 2 and a s...
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JP6892802B2 |
To provide a fastening torque management tool which can sufficiently increase fastening torque while the tool can be relatively inexpensively manufactured of a synthetic resin, and a combination of the fastening torque management tool an...
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JP6878556B1 |
To achieve both high accuracy of screw loosening detection and easy screw loosening detection. A male screw containing a first electrode formed of an electric conductor on at least a part of the threaded surface, and a second electrode a...
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JP6877798B1 |
To provide a bolt capable of suppressing Y-shaped deformation at the time of fastening. A bolt 1 includes a head portion 10 and a shaft portion 11. The upper surface 30 of the head portion 10 has a recessed portion 40 formed in the cente...
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JP6864499B2 |
To improve detection sensitivity without deteriorating stability and reliability of detection as much as possible, in a fastening bolt device for detecting axial force.A fastening bolt 3 has a head part 21 with a recessed part 31. An inc...
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JP6858306B2 |
The invention relates to a fastener bolt (1), an electric connector (70) and a method for clamping an electric wire (80). The fastener bolt (1) is provided with a shearing section (40). Due to the shearing section (40), a head section (8...
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JP6857487B2 |
To provide a loosening detection tool, a loosening detection device, and a loosening detection system capable of easily and stably detecting loosening of fastening of a fastener for fastening fastened bodies.A loosening detection tool 10...
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JP2021053731A |
To provide a novel tightening torque control tool that can, even when the tightening torque control tool falls and an outer peripheral edge of an outer flange portion collides with a floor surface, prevent cracks from being generated by ...
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JP2021053732A |
To provide a novel tightening torque control tool that can, even when the tightening torque control tool falls with an upper end surface oriented downward and collides with a floor surface, prevent cracks from being generated by impact o...
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JP6852176B2 |
A fastener including a sleeve having an elongated portion, a head with a bearing surface, and an internal threaded portion, a core bolt disposed within the sleeve and having a head and a shank portion having an external threaded portion ...
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JP6846986B2 |
To provide a fastening torque management tool (2) capable of sufficiently increasing fastening torque though it can be comparatively inexpensively manufactured from a synthetic resin, and sufficiently preventing a fastening tool (hexagon...
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JP2021014910A |
To provide a fastening confirmation device which does not cause the lowering of a fastening force of a nut with respect to a bolt, can reliably prevent the forgetting of the fastening of the nut, is easy in manufacturing, and simple in f...
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JP6810705B2 |
A screw assembly includes a longitudinal component (10) having two opposite ends and a threaded part (12; 42; 66) so that it can be connected by screwing to one of two elements (34). An elastically deformable member (18, 20; 48; 82) is a...
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JP6810142B2 |
Screw having a head and a threaded cylindrical body, the head being provided with strain gauges arranged so as to be deformed in order to measure a stress within the screw, the gauges being connected or able to be connected to a power su...
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JP6793115B6 |
A wheel nut or axle nut for vehicles, having a body, having a central threaded hole, having a peripheral wall, and having an abutment face at a lower side The nut also has a plurality of wrench faces on the peripheral wall of the nut bod...
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JP6803632B1 |
To provide a seizure prevention fastener in particular, which belongs to the technical field of a fastener. The bolt 1 is composed of a nut 3 having a stopper and an accommodating groove, and two nuts of a nut 2 having a pressure receivi...
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JP2020186950A |
To provide a bolt and a detection system which have high detection accuracy of detecting change in a fastening state of a fastened member.A bolt 100 includes: a bolt body 100A having a cylindrical part 120 which includes a screw groove p...
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