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JPH11257332A |
To set a bolt and nut so as to prevent them from loosening by a machine shop tool by fitting and fixing a cylindrical collar around an outer periphery of at least one side of a head part of the bolt or the nut after the nut is fastened t...
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JPH11257331A |
To positively prevent artificial loosening of a nut easily or slipping off from a bolt at the time of fastening the nut and after fastening it by covering a part projected from the nut of a bolt around which the nut is screwed with a loo...
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JPH11257330A |
To make impossible fastening/disassembly only by a fastening/ disassembling tool on the market, and prevent certainly the disassembly of a double nut fastening structure, especially by an evil intention. This lock nut has a nut main body...
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JPH11257333A |
To prevent failure such as damage to a fastening device by constituting the fastening device by a bolt and a fastening piece screwed around the bolt, and arranging an idle rotary means on the bolt or the fastening piece. A bolt 16 is com...
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JPH11247830A |
To prevent a criminal such as pulling of bolts by making the bolts and nuts difficult to be detached a steel tower. Bolts and nuts are made of stainless steel. After the members of a steel tower are completely fastened, the bolts and nut...
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JPH11247829A |
To prevent the bolts or nuts of a steel tower or the like from being rotated by a criminal. A circular bonding nut 1 has the thick outer periphery of a bottom surface and a thin inner surface, so that an adhesive flowing from a screw par...
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JPH11247828A |
To temporarily fix an attaching screw to a hole to be attached so as to be attachable and detachable. A screw case 33 is provided for temporarily fixing an attaching screw 32 to a hole 14 to be attached so as to be attachable and detacha...
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JPH11230145A |
To eliminate the easy separation of a press ring and a set screw. This fastener is composed of a set screw 3, a press part 11, on whose center the insertion hole 5 of the set screw 3 is opened, for regulating the displacement of then axi...
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JP2940869B1 |
[wrap up] [Task] Provided is a bolt / nut removal prevention structure in which the rotation of the fixing nut is accurately prevented at the stage after the fixing object is bolted and joined. The stopper nut 6 that is fitted to the bol...
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JPH11229960A |
To provide a timing cover structure, by which a bolt, a nut, a pin and the like are prevented from falling off by means of a simple structure, for an internal combustion engine. A rotary body transmitting rotation of a crank shaft to rot...
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JP2598651Y2 |
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JP2929262B2 |
PURPOSE: To prevent an ignition timing from being changed by engine users and the like by preventing a tap bolt from being loosened so as to rotationally move a case by the users of the engine and the like. CONSTITUTION: This power distr...
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JPH11193809A |
To provide a mechanism for rapidly unfastening the fastened screw, in which fastened screws readily undergo the separative action as soon as the screw connection is released. A body 2 to be fastened is connected to a screw-in body 1 by m...
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JP2920909B1 |
[wrap up] [Task] Cover these areas with a collar so that even a specialist cannot loosen the bolts and nuts so that the collar cannot be moved. A washer 1 with a claw having a spring effect is inserted into the end of the bolt 2 protrudi...
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JPH11182519A |
To prevent illicit operation to illicitly release a fastening condition that a fastening unit fastens parts for a bicycle. In this fastening unit A for a bicycle, a crime prevention nut 2 screwed around the screw rod 1a of a bolt 1 is di...
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JPH11173241A |
To provide a sealing device capable of sealing a sealing nut in a short time. A sealing cap 8 includes a cap 8a enveloping an atmospheric induction tube from the tip side; a fitting piece 8b of nearly a cylindrical shape for fitting on t...
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JP2596925Y2 |
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JP2909897B1 |
[wrap up] [Purpose] Provided is a nut locking device in an outdoor structure such as a steel tower for a power transmission line. [Constitution] In an outdoor structure in which the connecting portion of a structure is fastened with a bo...
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JPH11159512A |
To provide a flexible flywheel using fastening bolts which can not be removed by a general tool. A flexible flywheel 10 is composed of a wheel body 11, a flexible plate 13 adapted to be coupled to the wheel body 11, and a plurality of fa...
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JPH11153121A |
To provide a bolt integrated with a washer, with which a separate part such as a hinge can be simply attached to an exterior body such as a column or a gate door, and which can enhance the working ability of attachment, and the designabi...
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JP2901971B1 |
[wrap up] [Task] Provided is a protective cover that prevents bolts from being removed by covering all nuts at flange joints of transmission line towers and the like. Cover-supporting nut 8a and cover-supporting nut 8b attached to the bo...
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JPH11148444A |
To provide a sealing device of bolt which can prevent the readjustment of the bolt. A bolt 1 has the first male screw 1A to be fastened with a housing 2, and the second male screw 1B to which a special nut 4 is fastened, and the second m...
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JPH11141764A |
To previously prevent connecting failure by arranging bolts composed of a screw part and non-circular part, and mounting rings around the bolts so as to prevent each non-circular part of the bolt from jumping out from each elongate hole ...
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JP2890121B1 |
[wrap up] [Task] Prevents artificial bolt removal at the bolt joints of the legs of the main pillars of the transmission tower. The circular flange 4 fixed to the lower end of the leg of the main pillar material 1 by the round steel pipe...
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JPH11108030A |
To dispense with a screw hole of a support body, facilitate fastening even in a narrow space, and prevent droppage of a nut body by composing the nut body at least of an assembly of a magnetic body, a screw hole body and a droppage preve...
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JPH11108034A |
To dispense with a screw hole of a support body, facilitate fastening even in a narrow space, and prevent droppage of a nut body by composing the nut body at least of an assembly of a magnetic body, a screw hole body and a droppage preve...
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JPH11101217A |
To prevent both the adjusting end part side and the screw part- or abutting end part side of an adjusting screw from being operated from outside to prevent the adjusting screw from turning. This device is aimed at the structure which pre...
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JP2876175B2 |
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JPH1182463A |
To easily prevent the falling-off of a bolt from a bolt hole when a nut is screwed into the bolt. In a member fastening method by a nut and a bolt for inserting a bolt 10A from the bolt hole 8A of one member 8 into the bolt hole 9A of th...
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JPH1182460A |
To provide a cap structure capable of structurally preventing the unintentional rotation of a nut by surely moving a cap to a normal position so be engaged with the nut even if cap loading work is a blind operation. A nut rotation preven...
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JPH1162941A |
To provide the bolt fall preventing structure of a gas feed unit to improve the working efficiency of assembly and maintenance of the gas feed unit by preventing a fall of a bolt inserted in a bolt hole. Though, to fix a plurality of mod...
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JP2856396B2 |
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JPH1130221A |
To obviate any possible falling of a bolt being under construction by attaching each of soft plastic rings to a necking part of the bolt and the border line of a thread part. A necking part 2 is provided in a spot nearby the bolt head of...
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JP2589335Y2 |
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JPH1122716A |
To easily integrate a butterfly nut into a bolt even after manufacture with a simple manufacturing process by forming a slitlike stepped part on one end of the bolt, and fitting a ringlike member to the stepped part so that the outer edg...
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JPH1113731A |
To protect the bolt head of a bolt from damage by a method wherein the bolt head is contained in the recessed part of a protection plate when a counterweight is fixed at a main frame by bolts. A counterweight 9 is fastened against a pair...
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JP2846416B2 |
A push-nut type fastener for use on a threaded stud comprises a thin planar metal plate having an aperture formed therethrough with its axis perpendicular to the plane of the plate. A first plurality of resilient fingers is formed integr...
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JP2842783B2 |
A bolt for a truss includes a main body having a head portion, and a shaft portion which extends from the head portion. The shaft portion includes a base portion with a polygonal cross-section at a head portion side of the shaft portion....
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JP2586134Y2 |
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JPH10318272A |
To improve the efficiency of an assembly work between a shaft and a yoke and provide low-cost structure. A slip protection ring 17 on the outer peripheral surface of which expansion parts 21 and 21 are formed is mounted on the first cyli...
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JPH10311322A |
To prevent the falling-off of a bolt by pasting a soft synthetic resin sheet provided with a slit at two or more intervals toward the outside from the edge of a smaller hole than a bolt shaft diameter while continuing to the hole to the ...
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JPH10311321A |
To surely prevent dislocation of a bolt receiving force in the direction loosening a screw of the bolt fixing members, since a pair of the members always receive vibration and internal stress. In a dislocation preventing structure 1 for ...
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JPH10292812A |
To easily fit a fitting into a nut without falling by inserting and passing a bolt having a narrow part into/through a bolt passing oblong hole and mounting the bolt on the narrow part by deforming the oblong hole wall of the fitting to ...
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JPH10274058A |
To maintain limiting bolts for regulating control operation of a fuel injection pump, in a specified adjusted state so as to positively prevent the change of the adjusted state. A plurality of limiting bolts 13, 14 of governing mechanism...
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JPH10274230A |
To provide a bolt sealing device capable of increasing the strength of a sealing cap and reducing the number of part items. After a bolt 11 is turned with a screwdriver so as to adjust and fix the projected amount of the bolt 11, a tight...
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JPH10258692A |
To provide a fixing screw stored with the contents and the like of a number plate so that whether the number plate fitted to an automobile coincides with the registered number of the automobile can be easily detected from the outside. A ...
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JPH10220453A |
To provide a screw head form having the capability of preventing a loosening operation using a screwdriver. This loosening-preventive screw 1 has a cutout part 13 on head external surface at a radially trisectioned position from the cent...
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JPH10213122A |
To attach and detach metal nut simply and easily by fixing the nut fitted into a plastic main body by elastically locking each spring tooth of an outer tooth- shaped toothed belleville spring on a side wall of a belleville spring chamber...
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JPH10202548A |
To facilitate fitting and removal of a screw at a narrow space where apparatus and machines hesitating magnetic force are installed by using a screw holder with the screw attached onto the claw of a body which is fixed with fixing screws...
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JPH10196632A |
To provide a novel bolt installation structure which prevents escape of a bolt with a simple structure, and facilitate speedy attaching and detaching of a fitting. In this bolt installation structure, a bolt B having a barrel 4 with a di...
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