JPH0473034U

JPH0473034U -

Info

Publication number: JPH0473034U
Application number: JP11552290U
Authority: JP
Priority date: 1990-11-02
Filing date: 1990-11-02
Publication date: 1992-06-26
Anticipated expiration: 2005-06-14
Also published as: JPH0726420Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す部分断面側面
図であり、第２図は第１図の−線に沿う拡開
アンカーの断面図、第３図は拡開アンカーの後端
側における拡開アンカーと異径棒との断面説明図
、第４図は拡開アンカーの斜視図、第５図は従来
例を示す部分断面側面図である。１……異径棒、２……拡開アンカー、１１……
節状突出部、２０……拡開部、２１……テーパー
部、２２……拡開用溝、２６……縦溝、２７……
突出片。 Fig. 1 is a partially sectional side view showing one embodiment of the present invention, Fig. 2 is a sectional view of the expansion anchor taken along the - line in Fig. 1, and Fig. 3 is a sectional view of the expansion anchor on the rear end side. FIG. 4 is a perspective view of the expansion anchor, and FIG. 5 is a partially sectional side view showing a conventional example. 1... Different diameter rod, 2... Expansion anchor, 11...
Nodular protrusion, 20... Expanding part, 21... Taper part, 22... Expansion groove, 26... Vertical groove, 27...
protruding piece.

Claims

[Claims for Utility Model Registration] 1. Consisting of a rod of different diameters and a cylindrical expansion anchor, the rod of different diameters has a plurality of nodular protrusions that protrude radially outward at least along the circumferential direction of the outer peripheral wall. The inner cylindrical part of the expansion anchor is formed in a shape into which a rod of different diameter can be inserted, and the expansion anchor has an expanded part on the distal end side, and this expanded part is connected to the inner cylindrical part. has a small diameter part smaller in diameter than the outer diameter of the nodular protrusion of the different diameter rod, and this small diameter part is pressed by the nodular protrusion of the different diameter rod inserted into the inner cylinder part. A combination structure of a rod of different diameter and an expansion anchor, characterized in that the outer periphery of the expansion part is expandable in a radially outward direction. 2 The expansion part of the expansion anchor has a vertical groove along the entire circumference on its outer peripheral wall in the axial direction, and this vertical groove prevents the expansion anchor from rotating in the circumferential direction after being buried. The combination structure of a rod of different diameter and an expansion anchor according to claim 1, characterized in that it is configured as follows. 3. The outer periphery of the nodular protrusion of the rod of different diameter has a large diameter part and a small diameter part, and the inner cylindrical part of the expansion anchor has an expansion anchor on a part of the inner peripheral wall on the rear end side. It has a protruding piece that is integrally formed and protrudes radially inward, and this protruding piece makes the diameter of a part of the inner cylindrical part larger than the small diameter part of the different diameter rod and smaller than the large diameter part. After aligning the small diameter part of the protruding piece of the opening anchor with the small diameter part of the different diameter rod and inserting the different diameter rod into the expansion anchor, the different diameter rod rotates relative to the expansion anchor. 3. The combination structure of a different diameter rod and an expansion anchor according to claim 1 or 2, characterized in that the rod is prevented from coming off from the expansion anchor.