INTERVENING MEMBER, FASTENER AND FASTENED BODY

• Main Author: SEKI SHINYA
• Format: Patent
• Language: English
• Published: 24.08.2006
• 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

PROBLEM TO BE SOLVED: To provide a screw unremovable in a normal working mode. SOLUTION: On at least one of the opposed faces of the screw 10 and an intervening member 20, whichever harder, notched portions 12, 21 are formed including tops radially extending from the center axis of a through-hole 23 and preventing faces 12b, 21b as faces approximately perpendicular to the opposed faces for preventing the slackening of the screw 10. A notched portion 22 including tops radially extending from the center axis of the through-hole 23 and a preventing face 22b as a face approximately perpendicular to the opposed face of the screw 10 for preventing the slackening of the screw 10 is formed on the back of the opposed face of the intervening member 20. COPYRIGHT: (C)2006,JPO&NCIPI