JPS634415U

JPS634415U -

Info

Publication number: JPS634415U
Application number: JP9867586U
Authority: JP
Priority date: 1986-06-26
Filing date: 1986-06-26
Publication date: 1988-01-12
Also published as: JPH0332818Y2

Description

[Brief explanation of the drawing]

第１図は植設された状態での本実施例にかかる
アンカーボルトの正面図、第２図はアンカーボル
トの各部の形状を示す分解斜視図、第３図ａ，ｂ
は拡径前のスリーブの下端部の展開図および斜視
図、第４図ａ，ｂは第３図ｂのスリーブの下端部
の内周壁の曲率を示す各横断面での横断面図、第
５図は拡径後のスリーブの下端部の斜視図、第６
図ａ，ｂは第５図のスリーブの下端部の内周壁の
曲率を示す各横断面での横断面図、第７図〜第１
０図は他の実施例を示す正断面図および部分正断
面図、第１１図、第１２図は従来例を示すアンカ
ーボルトの正面図および分解斜視図、第１３図ａ
，ｂは第１１図に示す従来のスリーブの下端部の
内周壁の曲率を示す各横断面での横断面図、第１
４図ａ，ｂは同拡径後の曲率を示す横断面図であ
る。Ａ…アンカーボルト、１…ボルト本体、１ａ…
拡径部分（下端拡径部）、１ｂ…螺設部、２…ス
リーブ、２Ａ…下端部、２ａ…スリツト、２ｃ…
スカート片、２Ｂ…上部。 Fig. 1 is a front view of the anchor bolt according to this embodiment in the implanted state, Fig. 2 is an exploded perspective view showing the shape of each part of the anchor bolt, and Figs. 3 a and b.
4 is a developed view and a perspective view of the lower end of the sleeve before diameter expansion, FIGS. The figure is a perspective view of the lower end of the sleeve after diameter expansion.
Figures a and b are cross-sectional views at each cross section showing the curvature of the inner circumferential wall of the lower end of the sleeve in Figure 5, and Figures 7 to 1.
Figure 0 is a front sectional view and partial front sectional view showing another embodiment, Figures 11 and 12 are a front view and exploded perspective view of an anchor bolt showing a conventional example, and Figure 13a.
, b are cross-sectional views at each cross-section showing the curvature of the inner circumferential wall of the lower end of the conventional sleeve shown in FIG.
Figures 4a and 4b are cross-sectional views showing the curvature after the diameter expansion. A... Anchor bolt, 1... Bolt body, 1a...
Expanded diameter part (lower end expanded diameter part), 1b...threaded part, 2...sleeve, 2A...lower end part, 2a...slit, 2c...
Skirt piece, 2B...Top.

Claims

[Scope of utility model registration request]

A bolt body having an enlarged diameter part such as a tapered body shape at the lower end and a threaded part on the upper end thereof, and an axial slit opened toward the lower end formed in the lower end, and the side of the bolt body. An anchor bolt having a sleeve that is wrapped around the periphery and that locks the bolt body in a hole to be implanted, the lower end where the sleeve contacts the enlarged diameter portion of the bolt body and the upper portion of the enlarged diameter portion of the bolt body. The curvature in the transverse direction of each part of the inner peripheral wall of each skirt piece is divided into an upper part that substantially contacts the sleeve, and is separated by a slit formed at the lower end of the sleeve. It is characterized in that it is formed in advance to be equal to the curvature of each part of the outer peripheral wall of the enlarged diameter portion at the lower end of the main body.