JPH0319116U

JPH0319116U -

Info

Publication number: JPH0319116U
Application number: JP7871789U
Authority: JP
Priority date: 1989-07-05
Filing date: 1989-07-05
Publication date: 1991-02-25

Description

[Brief explanation of drawings]

第１図は本考案における形状可変部材の一実施
例を示す斜視図、第２図および第３図は第１図の
デイスタンスチユーブの作用を説明するための軸
断面図、第４図は本考案の他の実施例の平面図、
第５図は第４図の−線断面図、第６図は第４
図および第５図に示すデイスタンスチユーブの作
用を説明するための軸断面図、第７図は本考案の
更に別の実施例の平面図、第８図は第７図の−
線断面図、第９図は第７図の−線断面図、
第１０図は第７図乃至第９図に示すデイスタンス
チユーブの作用を説明するための軸断面図、第１
１図は従来のボルト締結構造におけるボルトの弛
み作用を説明するための軸断面図、第１２図およ
び第１３図は芯ずれがある場合の孔関係を説明す
るための平面図および側面図である。１，１ａ，１ｂ……デイスタンスチユーブ、２
……スリツト、３，４……被締結物、５，６……
締結孔、７……ボルト、８……座金、９……ナツ
ト、１０……開口部。 FIG. 1 is a perspective view showing one embodiment of the variable shape member in the present invention, FIGS. 2 and 3 are axial sectional views for explaining the action of the distance tube in FIG. 1, and FIG. A plan view of another embodiment of the invention;
Figure 5 is a sectional view taken along the - line in Figure 4, and Figure 6 is a cross-sectional view of Figure 4.
Fig. 7 is a plan view of still another embodiment of the present invention, and Fig. 8 is a - of Fig. 7.
A line sectional view, FIG. 9 is a - line sectional view of FIG. 7,
FIG. 10 is an axial sectional view for explaining the action of the distance tube shown in FIGS. 7 to 9;
Figure 1 is an axial sectional view for explaining the loosening effect of a bolt in a conventional bolt fastening structure, and Figures 12 and 13 are a plan view and a side view for explaining hole relationships when there is misalignment. . 1, 1a, 1b... distance tube, 2
...Slit, 3, 4...Object to be fastened, 5, 6...
Fastening hole, 7... Bolt, 8... Washer, 9... Nut, 10... Opening.

Claims

[Scope of utility model registration request]

A variable-shape member, which is a member that is displaced in the radial direction by a pressing force in the axial direction, and which comes into contact with the outer periphery of the bolt and the inner periphery of the fastening hole of the object to be fastened when the bolt is fastened, is used to fasten the bolt and the object to be fastened. A bolt loosening prevention structure characterized by being interposed in the gap between the hole and the hole.