Aoyama Seisakusho Co., Ltd.
|Aoyama Seisakusho Co., Ltd. Patent applications|
|Patent application number||Title||Published|
|20140314519||SEIZURE PREVENTION BOLT - There is provided a seizure prevention bolt capable of preventing seizure caused by oblique insertion as well as seizure caused by invasion of a foreign matter such as a spatter. An incomplete screw portion||10-23-2014|
|20140248104||PIERCE NUT FOR HIGH-STRENGTH STEEL PLATE - A pierce nut used for a high-strength steel plate according to the invention includes a female screw thread portion formed in the center of a nut body, an annular piercing portion projecting around the female thread portion, and an annular outer peripheral projection extending from the periphery of the nut body. The outer periphery of the piercing portion forms a first sloping surface increasing in diameter toward the leading end thereof, and also the inner peripheral surface of the outer peripheral projection forms a second sloping surface increasing in diameter toward the leading end thereof. Serrations are formed on the second sloping surface. Even where a mating member is a high-strength steel plate, the pierce nut according to the invention can ensure the same peeling strength and rotation torque as with a conventional nut, without deformation of the pierce nut itself.||09-04-2014|
|20140147230||ANTI-SEIZING NUT - Provided is a nut into which a bolt (||05-29-2014|
|20140060136||METHOD AND DEVICE FOR CAULKING A CAULKING MEMBER - The invention is directed to a method for caulking a caulking member such as a caulking nut or a caulking bolt to a metal plate. The metal plate is arranged on a die having a caulking protrusion formed on an end surface thereof, the caulking member is arranged on the metal plate while a position of a caulking recess portion of the caulking member is aligned with the caulking protrusion, and a punch is brought closer to the die so that the caulking member is pressed against the metal plate. While an upper surface of the metal plate in a position opposite to the caulking recess portion is restricted by a downward protruding portion of the punch or by the caulking member, the metal plate is plastically fluidized into the caulking recess portion, so that the caulking member is caulked without boring a hole in the metal plate.||03-06-2014|
|20130192030||HOSE CLAMP - The invention provides a hose clamp which can be produced at a low cost and quickly clamp a hose. The hose clamp is made of resin and made by integrally forming a generally annular clamp body which is partially cut out and a lever continuing to an end of the cut out, of the clamp body. The lever includes a first operating piece which is rotatably connected to one of the cut-out ends of the clamp body via a first hinge and has an engagement part on its tip and a second operating piece rotatably connected to the other of the cut-out ends of the clamp body via a second hinge. The tip of the second operating piece is connected to the first operating piece. An engaged part||08-01-2013|
|20120011969||FASTENING TOOL - The invention provides a fastening method and a fastening tool which can stably fasten a nut to a bolt securely and with a small dispersion at a desired axial force. A fastened member is fastened by inserting a bolt to the fastened member, thereafter temporarily fastening a nut and the bolt, pulling a leading end of a shaft portion of the bolt in an axial direction of the bolt, rotating the nut so as to screw into the bolt while elastically deforming the bolt so as to generate an axial force, and thereafter canceling the pulling of the bolt.||01-19-2012|
|20110318136||FEMALE SCREW COMPONENT AND FASTENING COMPONENT UTILIZING THE SAME - A female thread member capable of preventing seizing caused by inclined insertion, and being smoothly fastened from any directions in which a bolt is inserted, and a fastening member using the female thread member. A non-thread portion is formed on an inner peripheral surface of a female thread member body having a female thread for a length corresponding to at least one pitch from an end surface on a bolt-inserting side, and a projection which comes into contact with a flank surface of a male thread of an inserted bolt is formed on a line extending from a helical line of the female thread. The female thread member is used in combination with the bolt having no incomplete thread portion, and there is no adverse possibility of seizing regardless of any directions in which the bolt is inserted.||12-29-2011|
|20110200410||ANTI CROSS-THREAD BOLT - To provide an anti cross-thread bolt which prevents itself from being cross-threaded without the need for correcting its posture by a pilot portion. The bolt is screwed into a female screw having a nominal diameter D and an inner diameter D||08-18-2011|
|20090067921||FASTENING DEVICE - A fastening device, including: a sleeve||03-12-2009|
|20090060676||BOLT - In a bolt of the present invention, a guide portion (||03-05-2009|
Patent applications by Aoyama Seisakusho Co., Ltd.