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JP3934015B2 |
To provide a high-tensile bolt joint structure using a plurality of head-tightening high-tensile bolts and nuts, and a nut holder where, when a nut is secured at a prescribed inside position in advance, the nuts can be easily secured by ...
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JP2007146939A |
To prevent excessive deformation of an attachment member upon fixing the attachment member to a rotating shaft with a set screw even when a user fails to manage fastening torque of the set screw.A fragile part 16 more easily twisted than...
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JP2007114310A |
To provide a display device which can selectively display a plurality of display colors on one illumination plate and on which the display colors can clearly be recognized even from a flank of a box body.The display device has the milky-...
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JP3911579B2 |
PURPOSE: To provide a threaded member fastening method by which a fastening works for a tube joint and the like can be facilitated and defective fastening can surely be prevented. CONSTITUTION: The standard range of fastening torque of t...
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JP2007510110A |
To enable a permanent fastening which maintains sufficient pretension. The present invention relates to a fastening element consisting of a front stem portion formed in close proximity to a building and designed to be adjacent to a conne...
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JP2007102589A |
To establish a design method for designing a screw fastening member reliably without falling by defining a relation between every damage form and external force of the screw fastening element.In a design method for machine elements (scre...
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JP3902708B2 |
To provide one function in relation to a wheel nut for restricting the magnitude of deformation of a wheel sheet, and for restricting a torque angle in the case of assembly. A wheel nut 10 includes a main body 12 having a vertical shaft ...
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JP3898070B2 |
To obtain an overload preventing mechanism for an electromagnetic attraction actuator which absorbs and do not transmit an impact force during the oscillation of a control system to a submirror. An attraction plate 15 is provided slidabl...
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JP2007505279A |
A hydraulic nut having a piston which is movable in a fluid chamber of a nut body and which has a radial protrusion from the piston and a displacement bar mounted on the protrusion. The displacement bar overlies the nut body and extends ...
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JP2007046639A |
To provide a bolt having a shaft part of a hardly breakable structure wherein irregular stress is unlikely to be generated at the shaft part.A cylinder part 9 in a predetermined length having a diameter comparable to an effective diamete...
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JP3883850B2 |
To provide a fixture for setting a clamping force with high reliability and its setting method that can set an accurate clamping force and prevents the clamping force from changing over a long use. This fixture for setting the clamping f...
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JP2007040344A |
To easily and surely fasten a nut with proper fastening torque, and to prevent the nut from being easily taken out by mischief or the like after fastening.This nut comprises a nut body 7 having a screw hole 5 at a shaft center in a state...
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JP2007032611A |
To provide a torque adjusting clamp bolt capable of eliminating an exclusive storage space, capable of reducing a space for turning operation, and capable of easing constraints of an article to be clamped.A turning operation knob 13 is t...
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JP3873183B2 |
To provide a nut structure capable of easily performing fastening work by hand and causing no excessive fastening. This nut structure is constituted of an inner member 6 having inside female screws 62a, 62b threadedly engaged with a bolt...
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JP2007500831A |
A blind fastener for securing a plurality of workpieces is provided that has a sleeve, and a pin member. In an alternate embodiment, the blind fastener has a sleeve, a pin member and a nut. The sleeves have a head with a plurality of rea...
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JP2006346784A |
To provide a fastening torque control system for controlling fastening torque of a nut, wherein the system can positively detect working errors and is low in cost.The fastening torque control system 1 is formed of: a fastening torque det...
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JP2006349011A |
To easily and simply confirm a tightening condition of a bolt to prevent forgetting tightening and to easily confirm an electric connection condition of electric connection implements simultaneously with bolt tightening.A washer 40 as th...
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JP3861984B2 |
To provide a fastening structure of a bolt providing a high fastening strength by preventing a stress from concentrating into a specified position of an engagement part of the bolt relative to a structure. A hollow part 6 is continuously...
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JP3844844B2 |
To prevent the image quality of the images of a standstill area such as a background from being lowered at the time of changeover from a high resolution to a low resolution relating to moving image encoder and decoder and the moving imag...
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JP3126756U |
To freely select and set a material and hardness of a protrusion while confirming a fastening force by protruding the protrusion from the outer periphery of a washer body at the time of fastening. A plurality of concave step portions 12 ...
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JP2006307963A |
To provide a locking washer almost never loosening up and screws with locking washers attaching the same.This locking washer 1 has two or more legs 7 at a lower part of a cylinder shape or an umbrella shape washer. The legs are compresse...
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JP3841438B2 |
The present invention provides an innovative method and apparatus for determining continuous, visual clamp load status during tightening and throughout the life of a fastener. The present invention provides a nondeformable element (or in...
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JP2006283878A |
To provide a fastening device for a ceramic heat exchanger capable of maintaining an appropriate sealing contact pressure and preventing occurrence of a leakage even if a fastening frame is thermally expanded in an axial direction of a b...
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JP3835374B2 |
To accurately fasten a bolt by setting a fastening amount of the bolt to an appropriate value. When fastening the bolt using a bolt fastening means 6, a first and a second torque gradient calculation means 14 and 15 detect fastening torq...
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JP3834442B2 |
To strongly fasten folded plates, also surely prevent them from loosening and improve the appearance and safety. The shaft section 11a of a blind bolt 11 is inserted into a pair of folded plates 20 with a leg opening collar 13 and a resi...
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JP3827648B2 |
To provide a washer to tighten and loosen a bolt by turning only nut, while maintaining the washer itself and the bolt in stationary state by receiving a prescribed torque in an opposite direction when the nut is turned with a prescribed...
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JP2006248458A |
To provide a double wheel mounting structure capable of preventing the loose rotations of an inner nut.(1) The inner nut 2 is made to axially penetrate a hub bolt 1 and extended to the outside of the inner nut. On the extended part 11, a...
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JP2006220297A |
To provide an axial force controlling nut assembly capable of suppressing coarsening and abrasion of a nut seat face, and easily certifying whether or not proper axial force has been reached.The axial force controlling nut assembly 10 is...
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JP2006214577A |
To provide a self drilling tapping screw for thin steel sheet provided with a torque control function capable of surely preventing a female thread from being destroyed by an excessive tightening torque and having a high retention force t...
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JP2006207119A |
To provide a functional maintenance method of a bridge bearing in the case of an earthquake capable of preventing the damage of the whole bearing by breaking a part of a fuse function which is easily replaced to maintain its function and...
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JP2006194354A |
To provide a shear bolt for preventing a biting trouble of a cut face portion.The shear bolt 11 comprises a shaft 41 having a remaining shaft portion 40 remaining in a shaft-like portion of a tilling shaft during cutting and a head 42 pr...
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JP2006183794A |
To provide a bolt which can appropriately control its axial force when fastened.The bolt comprises a bolt body 4 having a receiving hole 3 drilled therein so as to pass through in the axial direction, a rod 5 which is inserted into the r...
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JP2006177404A |
To provide a brake disc fastening structure for stably fastening brake discs without biting fastening components into the brake discs.A bolt 3 has a stepped portion 3b at the front end for fastening the pair of aluminum base composite ma...
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JP2006175446A |
To elongate the life of the tie bolt of the main clutch drum in a cold Pilger mill by easily carrying out the reuse of the tie bolt even if the tie bolt has been broken.In the tie rod for fixing the main clutch drum to the brake drum in ...
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JP3122640U |
To visually confirm a fastening force by plastically deforming a part of a pressure contact seat surface of a fastening part for screw tightening so as to protrude from the outer circumference of the connecting part. A plurality of conve...
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JP2006161636A |
To solve the problem wherein a stainless steel of JIS standard article used for a connecting pin of a guide vane driving mechanism has a wide component range and unevenness of shearing strength characteristic of a material of the connect...
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JP3786622B2 |
To provide a turbine engine bearing support system for an aircraft enabling an engine to safely shut down after an excessive imbalance is introduced to a fan stage. A bearing support for a rotor of an aircraft turbine engine includes a f...
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JP3782803B2 |
To provide a locking structure of a bolt-nut and a balloon type locking tool, preventing looseness even if a member engaged with the bolt is made thinner after fastening. When plate materials 11, 12 to which the locking structure 10 of a...
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JP2006125551A |
To provide a screw thread structure allowing fastening strength to be compatible with maintainability requested when the structure is used.The thread part 14 of a bolt 10 is set to a pitch threaded with a female screw part 15 when it is ...
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JP2006514233A |
A screw with an integrated screwdriver, the screw having a screw shaft with a thread, a screw head, and a longitudinal axis, and the screwdriver being connected coaxially with the longitudinal axis over a specified breaking point with th...
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JP2006105382A |
To provide a washer capable of allowing a user to visually confirm whether a screw is completely fastened or not when the screw is fastened, and further to confirm whether fastening axial force is sufficiently introduced or not.A project...
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JP2006077874A |
To provide a universal joint, hardly causing cracks in the screw bottom of a bolt for fixing a bearing cup or a bearing holder to a yoke even if excessive load repeatedly works, and good for long-term use under the condition that large l...
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JP3754542B2 |
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JP3753015B2 |
To control the contact of a shoulder part in clamping with a position control marking quantitatively. There are provided a marking gauge 11 for a pin for detecting and marking a clamping completion position in a tube provided with an ext...
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JP3750991B2 |
To provide a high strength bolt capable of solving the conventional difficulty of manufacture because of high deformation resistance in molding, and a member using this bolt. This bolt comprises a locking means for a nut 4 such as modifi...
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JP3744675B2 |
To solve the problem that work is difficult, an exclusive tool is required, a structure is complex, there is possibility that jointing strength is dispersed per product, final fastening can not be executed after temporary fastening, and ...
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JP2006029555A |
To provide a bolt fastening condition identifying device for securely managing the condition of fastening a bolt with specified fastening force.The device comprises a spring washer 3 laid between a head bottom face 1a of the bolt 1 and a...
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JP3738072B2 |
To prevent generation of impact force to be generated by load in the direction perpendicular on a shaft and shear fracture to be generated by the continuous action of vibration, by providing a shock absorbing part composed of a laminated...
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JP2006009823A |
To provide a screw tightening device and torque washers capable of visually confirming that a nut is tightened with a specified tightening torque.This screw tightening device comprises a bolt 3 with male threads, the nut 7 having female ...
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JP3730866B2 |
An automatic screw clamping device of automatically tightening bolts fitted in a metallic mount member which is hard to nail comprises a casing (2), a rotator (4) disposed in said casing (2) in a manner that said rotator may rotate and m...
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