FIXING STRUCTURE OF STUD BOLT AND FIXED PLATE, AND STUD BOLT

• Main Authors: ASANO NOBUYOSHI, ITASHIKI MASARU, MORI SHIGETO
• Format: Patent
• Language: English; Japanese
• Published: 19.09.2019
• Subjects: BLASTING; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

To provide a fixing structure of a stud bolt and a fixed plate, having the structure which has a high fixing strength in a twisting direction with respect to a torque upon tightening and, moreover, has a high fixing strength for a load in a direction perpendicular to a shaft, and to provide the stud bolt.SOLUTION: In a fixing structure of a stud bolt and a fixed plate: an emboss part 122 to which a stud part 2 is fitted is provided on a fixed plate 102; the emboss part 122 has a cylindrical part 123 fitted to an outer circumferential surface of a caulking shaft part side of the stud part 2 and an end plate part 124 coming into close contact with a shoulder part 23 of the stud part 2; an opening part 125 is provided on the end plate part 124; an engagement part 42 which is extended to the radial direction outer side and is engaged with a peripheral part of the opening part 125 of the fixed plate 102 is provided on an end part of the screw shaft part side of a caulking shaft part 4; and whirl stopping means 25 which regulates relative rotation of the fixed plate 102 and a stud bolt 1 is provided on a fitting part of an inner circumferential surface of the cylindrical part 123 and the stud part 2.SELECTED DRAWING: Figure 1 【課題】締め付け時のトルクに対するねじり方向の固定強度が高く、しかも、軸直角方向の荷重に対する固定強度の高い構造のスタッドボルトと被固定板との固定構造及びスタッドボルトを提供する。【解決手段】被固定板１０２にはスタッド部２が嵌合するエンボス部１２２が設けられ、エンボス部１２２は、スタッド部２のかしめ軸部側の外周面に嵌合する筒状部１２３と、スタッド部２の肩部２３に密接する端板部１２４と、を有し、端板部１２４に開口部１２５が設けられており、かしめ軸部４のねじ軸部側の端部には、径方向外方に張り出して被固定板１０２の開口部１２５の周縁部に係合する係合部４２が設けられ、筒状部１２３の内周面とスタッド部２との嵌合部に、被固定板１０２とスタッドボルト１の相対回転を規制する回り止め手段２５が設けられている。【選択図】図１