JPH044512U

JPH044512U -

Info

Publication number: JPH044512U
Application number: JP4538290U
Authority: JP
Priority date: 1990-04-27
Filing date: 1990-04-27
Publication date: 1992-01-16

Description

[Brief explanation of the drawing]

第１図は本考案の第一実施例を示す一部切断し
た分離斜視図、第２図は同じく締結完了状態の断
面図、第３図は本考案の第二実施例を示す一部切
断した分離斜視図、第４図は同じく締結完了状態
の断面図、第５図は本考案の第三実施例を示す一
部切断した分離斜視図、第６図は同じく締結完了
状態の断面図、第７図は従来構造を示す一部切断
した分離斜視図、第８図は同じく締結完了状態の
断面図である。１……ボルト、２……軸部、４……頭部、６，
７……切欠、８……座面、１１……ロツキングカ
ツプ、１２……底部、１３……軸孔、１４……筒
状部、１５，１６，１７……ダボ、２１……被締
結物、２２……ボルト挿入部、２３……ロツキン
グカツプ収容穴、２４，２４′，２６……凹部、
２５……底面。 Fig. 1 is a partially cut away perspective view showing a first embodiment of the present invention, Fig. 2 is a sectional view of the same in a completed state, and Fig. 3 is a partially cutaway view showing a second embodiment of the present invention. FIG. 4 is an exploded perspective view, FIG. 4 is a cross-sectional view of a state in which the connection is completed, FIG. 5 is a partially cut away perspective view showing a third embodiment of the present invention, and FIG. FIG. 7 is a partially cut away perspective view showing a conventional structure, and FIG. 8 is a sectional view of the same in a completed state. 1... Bolt, 2... Shaft, 4... Head, 6,
7... Notch, 8... Seat surface, 11... Locking cup, 12... Bottom, 13... Shaft hole, 14... Cylindrical part, 15, 16, 17... Dowel, 21... Fastened object, 22... Bolt insertion part, 23... Locking cup accommodation hole, 24, 24', 26... Recessed part,
25...Bottom surface.

Claims

[Claims for Utility Model Registration] 1. A bolt having a cylindrical head with a notch,
It has a locking cup consisting of a cylindrical part surrounding the outer periphery of the head and a bottom part in which a shaft hole is formed through which the shaft part of the bolt is inserted, and a locking cup accommodation hole formed in the opening of the bolt insertion part of the object to be fastened. A bolt locking mechanism characterized in that a recess is formed in the bottom surface or opening edge of the locking cup receiving hole, and a dowel protruding from the bottom or cylindrical portion of the locking cup to engage with the recess. 2. A bolt with a notch formed in the cylindrical head,
It has a locking cup consisting of a cylindrical part surrounding the outer periphery of the head and a bottom part in which a shaft hole is formed through which the shaft part of the bolt is inserted, and a locking cup accommodation hole formed in the opening of the bolt insertion part of the object to be fastened. A recess is formed at the opening edge of the locking cup receiving hole, and a dowel is provided protruding from the cylindrical portion of the locking cup to engage with a notch in the head of the bolt, so that the notch extends in the axial direction and engages with the head. A bolt locking mechanism that is characterized by reaching the seat surface of the bolt.