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JP2012127491 |
To solve the problem with a screw employing a bonding force of a bond for preventing the loosening of the screw, wherein the bonding force of the bond is weakened by an aged change, thus causing the re-loosening of the screw, and in the ...
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JP2012122606 |
To provide a precision nut of a lock system having multiple patterns which locks an article on a shaft stably and firmly by tightening a nut on the shaft to improve a locking effect, and makes operations convenient.The precision nut of t...
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JP2012117606 |
To provide a locking screw capable of producing reliable locking effects and reducing as mush as possible friction debris to be produced by friction between a male screw and a female screw.The locking screw to be driven into a female scr...
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JP2012117639 |
To provide a nut fastening structure capable of solving a shortage of a fastening force.The nut fastening structure comprises a body 10 and a plurality of screwing parts 20. The body 10 has a first screwing section 12. The first screwing...
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JP2012112530 |
To provide a zero-clearance bolted joint for use in joining a ring gear to a differential case.A bolted joint is formed by using a bolt 20 having a tapered shoulder 44 to cold form a deformable sleeve 46 in order to provide a "zero-clear...
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JP2012112481 |
To provide a locking bolt which allows a locking operation to be performed only from the front side of a to-be-fixed member even when the space at the rear side of the to-be-fixed member is narrow and small, while, even in the case of a ...
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JP2012112404 |
To provide a washer having a structure that disperses and reduces a vertical compression load transmitted via a screw related to the corrugated board fixing washer so that the load may not be concentrated on the axis of the screw, and to...
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JP2012112403 |
To provide a loosening prevention screw component which can reliably prevent the loosening of a fastening part without using a fixing agent, moreover, can provide a fastening strength and permits repeated use.Clearance-side protrusion pa...
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JP2012107690 |
To provide a fastening mechanism capable of reliably performing fastening and releasing operations while preventing co-rotation of a nut.The fastening mechanism includes: a first member 1 including a cylindrical body 5 and an annular bod...
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JP2012102866 |
To provide an anti-loosening coupled body which strongly fastens a bolt and a fastening member without using welding, a bonding agent, or the like.The anti-loosening coupled body includes a bolt 10, a fastening member 20, and a pin-sprin...
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JP2012102783 |
To provide a fastening tool of simple structure, allowing easy and inexpensive manufacture, available in the same manner as conventional ones, and preventing a slack reliably.The fastening tool to tighten and fasten a bolt using a spring...
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JP2012098225 |
To provide an adjustment mechanism of a position-reading device for a moving object, the device being minimally affected by tolerances of the components and assembly.A moving-object position-reading device comprises: a position recording...
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JP2012097785 |
To provide a screw fastening structure allowing improvement of productivity while securing reliability.This screw fastening structure includes: a cylindrical body 18; a lid-shaped member 21 arranged on one end side of the cylindrical bod...
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JP2012092950 |
To easily and visually check, from a remote position, a loosened state of a fastening means that fastens a member by screwing.A looseness determining tool 20 is provided for visually checking a loosened state of a bolt 11 and nuts 12a, 1...
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JP2012087895 |
To provide a stud bolt and a structure having the same, easy in installation, and capable of easily adjusting a position of the stud bolt even when an installation position to an installation object member is dislocated.The stud bolt 10 ...
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JP2012087853 |
To provide a method for manufacturing a loosening preventing bolt, by which a loosening preventing bolt having a tapered cylindrical portion the diameter of which gradually increases from the head of a bolt and concentric to the axis of ...
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JP2012082871 |
To provide a fastening member which can maintain a fastening force without increasing the number of parts and can prevent the deterioration of insulation performance without diffusing metal powder generated when fastening.A belleville sp...
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JP2012072837 |
To provide a fastening bolt of versatile use and harder to work loose compared with conventional bolts of versatile use, and a screw fastened body utilizing the fastening bolt.A pair of recessed grooves 8a, 8b along a spiral are formed s...
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JP2012072885 |
To provide a washer, a bolt locking structure, and electric equipment that are superior in versatility and facilitate torque management.The washer is sandwiched by a head of a bolt or a nut and a fastening member. The washer includes: a ...
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JP2012071708 |
To provide a wheel for a cart in which a bead stopper is easily mounted and removed, while air leak is prevented from a bead stopper mounting section, and in which damage to a rim is prevented.The wheel for a cart including the rim 2 to ...
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JP2012067789 |
To provide an easy-to-manufacture weight reducing fastening member and a manufacturing method thereof, that needs less materials, without causing any problem in strength.One or a plurality of spiral weight reducing grooves 15 are arrange...
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JP2012066256 |
To provide a method for manufacturing a screw, which reduces the screw fastening time and obtains a predetermined fastening force and suppresses the loosening of a screw.The method for manufacturing a fastening screw, includes: a prelimi...
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JP2012057721 |
To provide a fixing structure of an adjust nut having simple structure, and to provide a manufacturing method of the adjust nut.The fixing structure of an adjust nut includes an adjust nut 20 and a bearing cap 30. The adjust nut 20 compr...
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JP2012057667 |
To provide a nut which has detent mechanism with respect to a bolt.The nut includes a nut body and an elastic prismatic pressing piece. The nut body includes a fitting groove which is formed by opening a minor arc surrounded by upper and...
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JP2012057778 |
To obtain a fastener which enables locking pieces to be effectively locked on a trough part of a screw when an internal thread part is formed on the inner circumferential surface of a mounting hole.The locking pieces 22 is arranged at co...
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JP2012047264 |
To provide a workpiece mounting structure by which a workpiece can be securely mounted and fixed in few steps.The workpiece 50 is secured to the front surface of the board 40 via the board anchor 1 and the locking tool 2. The board ancho...
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JP2012047215 |
To provide a securing implement relating to a washer or the combination of a screw and the washer capable of confirming and detecting the slack of the screw after securing.The washer 20 is formed of a metal spring material, a through-hol...
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JP2012041938 |
To provide a nut loosening preventive device for locking so that a screw is not loosen with workpiece being secured with a bolt and a nut.The nuts (14) and (15) are locked so as not to be loosen by screwing the main nut (14) to a screw s...
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JP2012037038 |
To provide a non-loosening bolt and nuts connected so that two kinds of nuts different in the rotation direction can be rotated only in the same direction, by arranging two kinds of screws different in the rotation direction on the same ...
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JP2012037010 |
To provide a nut with a loosening preventing function by which a bolt and the nut can be easily threaded and unthreaded using fastening tools such as a spanner or wrench, a box wrench, and a kiku (wrench without an upper wall) at low cos...
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JP2012031971 |
To provide a bolt hard to loosen having stable fastening force for a long time.The bolt 1 includes a shaft 10 provided with a male screw 11 on the front end side, a head 20 provided on the base end side of the shaft 10 so as to be axiall...
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JP2012026565 |
To provide fastening device capable of preventing looseness due to vibration and preventing unlocking the fastening and surely preventing mischiefs and theft of a nut once fastening to a bolt.In the fastening device 10, the nut 12 has a ...
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JP2012021584 |
To reinforce a structural member 1 with an insert 3, to reliably prevent the insert 3 from turning with a simple structure when the structural member 1 is mounted with a bolt, and to allow the insert 3 to be easily exchanged.A first groo...
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JP2012017756 |
To provide a connection nut for fixing a frame material for easily performing a partial structural change even after assembling, by surely electrically continuing with the frame material, when fixing the frame material to the other membe...
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JP2012017814 |
To provide a loosening-prevention screwing structure that can be re-fastened after fastened once, can exert a function for surely preventing loosening at a degree not lower than a prescribed value, and can secure a holding property of a ...
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JP2012013096 |
To provide a laminated rubber bearing body, in which an anchor bolt preliminarily screwed into a plate is prevented from loosening by vibration.An engaging recess 12 is formed in the bottom of a female screw hole 6 of a lower plate 5. A ...
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JP2012013222 |
To provide a fastening member that is constituted by using a nut of a general-purpose specification, and can provide rigid fastening.The fastening member 1 includes: a first washer 4 which is used together with a bolt 6 and the nut 2, an...
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JP2012013133 |
To provide a locking screw surely providing locking action, and sufficiently exerting the locking action even in repetitive use.The screw includes a head part 2 and a leg part 3, has a screw thread formed to the leg part 3, and is screwe...
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JP2012007641 |
To provide a fastening device which is not easily disengaged when the device is fastened to a bolt, and prevents slackness caused by vibration or an external force for a long period of time.The fastening device includes a coil spring 13 ...
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JP2012007625 |
To provide a locking washer, which avoids the occurrence of looseness at a fastening part by a fastening member such as a bolt and a nut and obtains a more stable looseness preventive effect even when stronger vibration shock is applied....
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JP2012002324 |
To securely stop loosening by engaging and fixing, when a screw for fastening by screwing is fastened.In a fastening screw 10 for fastening a member to be fastened, a thread angle θ of a thread 12b of the fastening screw 10 is made smal...
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JP2011256938 |
To provide an anti-slip seat for a fastening member capable of preventing displacement or slip of a fastened member when fastening and fixing a plurality of fastened members.The anti-slip seat for a fastening member includes anti-slip fi...
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JP2011256928 |
To provide a screw shaft which prevents loosening of a fastened part and suppresses the progress of loosening even when the fastened part is loosened, and to provide a screw locking method using the screw shaft.The screw shaft 10 include...
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JP2011252593 |
To provide a screw having a sure slack preventing function and an initial slack preventing effect even when the screw is unscrewed and even when the screw is fastened again by making a leading side flank shape and a pressure side flank s...
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JP2011252573 |
To provide a locking washer capable of being fastened in a small number of processes and successfully achieving a high locking effect and a locking fastener using the same.The locking washer 1, which is fastened with a locking nut 2 form...
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JP2011247375 |
To firmly fix a finishing member and a substrate member which form a floor without affecting the aesthetic appearance of the surface of the finishing member by a simple operation utilizing an underfloor space.This screw B is screwed to t...
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JP2011241937 |
To improve bolt fastening between aluminum components such that a stable fastening state remains for a long period.A fastening structure is provided for bolt fastening between two aluminum components (10 and 24). An aluminum washer (30) ...
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JP2011241865 |
To provide a fastener device capable of reliably and visually confirming that a bolt or nut is loosened, and also preventing workability for fastening the bolt or nut from being lowered.The fastener device has the bolt 10 having a head 1...
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JP2011241911 |
To provide a tapping nut capable of smoothly releasing coupling of two members and separating the two members from each other that are made of materials not having enough mechanical strength such as a fiber reinforced resin.The tapping n...
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JP2011231800 |
To provide a loosening prevention tool that is used for joining a building material by using a lengthy screws, can improve construction accuracy, and can prevent the loosening of the lengthy screw even if the building material is contrac...
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