F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
F16B 33/02 (2006.01) B21B 1/00 (2006.01) B21D 17/04 (2006.01) B21D 53/24 (2006.01) B21H 3/02 (2006.01) F16B 35/04 (2006.01)
Patent
CA 2394101
The object of the present invention is to provide a bolt that effectively prevents gouging, seizure and racing between the bolt and nut without the aid of a guide boss and is effective when combined with the case nut. Said object can be attained by providing a bolt having a threaded shank portion wherein a plural number of notched faces slanting toward the end of said threaded shank portion at an angle ranging from ~15° to ~80° toward the axis of said threaded shank portion, are formed at the beginning of the thread part of said threaded shank portion.
La présente invention a pour objet d'obtenir un boulon qui empêche réellement le gougeage, le grippage et l'emballement entre le boulon et l'écrou, sans l'aide d'un bossage-guide, et il est efficace en combinaison avec le manchon fileté. Ce résultat peut être obtenu grâce à un boulon présentant une tige filetée. Plusieurs faces crantées inclinées vers l'extrémité de ladite tige, à un angle compris approximativement entre 15 degrés et 80 degrés vers l'axe de cette tige filetée, sont formées au début de la partie filetée de ladite tige filetée.
Kirby Eades Gale Baker
Meido Co. Ltd.
Meidoh Co. Ltd.
LandOfFree
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