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    • 1. 发明专利
    • Locking fastener
    • 锁紧紧固件
    • JPH11280736A
    • 1999-10-15
    • JP12160798
    • 1998-03-26
    • Masaaki Naito正昭 内藤
    • NAITO MASAAKI
    • F16B39/02
    • PROBLEM TO BE SOLVED: To simplify a structure, and easily mount/demount a nut by arranging plural recessed parts on one end surface of the nut and a recessed groove in the outer peripheral part, and installing the projecting part fitted to the nut end surface recessed part on one opening end of a C-shaped ring and a rotation stopping pawl on the other opening end. SOLUTION: The end surface recessed parts 3 are arranged plurally on one end surface of a nut 2, and a comparatively shallow outer peripheral recessed groove 4 capable of easily mounting/demounting a C-shaped ring 5 is arranged in the outer peripheral part other than the recessed parts 3. In the C-shaped ring 5, the projecting part 6 fitted so as to be mountable/demountable to the recessed parts 3 is arranged on the elastically deformable one opening end having a thickness corresponding to a screw pitch, and a detent pawl 7 having th tip of an acute angle is arranged on the other opening end. A bolt 1 is an ordinary bolt to be installed so that the projecting part 6 is simultaneously fitted to the recessed parts 3 4 when the C-shaped ring 5 is slightly expansively installed in the recessed groove 4, and the detent pawl 7 is installed so as to press a screw part outside diameter of the bolt 1. The detent pawl 7 is caught by the screw outer peripheral part of the bolt 1, so that a highly reliable lock can be inexpensively performed.
    • 要解决的问题:为了简化结构,并且通过在螺母的一个端面上设置多个凹部而在外周部设置有凹槽,容易地安装/拆卸螺母,并且将安装在螺母端面上的突出部 C形环的一个开口端上的凹陷部分和另一个开口端上的旋转止动爪。 解决方案:端面凹部3多个地设置在螺母2的一个端面上,并且能够容易地安装/拆卸C形环5的比较浅的外周凹槽4布置在除了 凹部3.在C形环5中,安装成能够安装/拆卸到凹部3的突出部6布置在具有与螺距相当的厚度的可弹性变形的一个开口端上,并且 具有锐角尖端的棘爪7布置在另一个开口端。 螺栓1是要安装的普通螺栓,使得当C形环5被轻微地广泛地安装在凹槽4中时,突出部6同时装配到凹部3 4,并且止动爪7安装成 以压紧螺栓1的螺钉部分外径。棘爪7被螺栓1的螺钉外周部分卡住,从而可以廉价地执行高度可靠的锁定。