JPS62120531U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the end fitting showing one embodiment, Fig. 2 is a concrete pile with the end fitting of Fig. 1 fixed to the lower end, Fig. 2A is a side view thereof, and Fig. 2A is a side view of the concrete pile.
Figure B is a bottom view, Figure 3 is a cross-sectional view showing how the concrete pile in Figure 2 is sunk into the excavated hole, and Figure 4 is a bottom view.
The figure is a sectional view showing a conventional tip fitting structure. 1... Tip metal fitting, 2... Outer wall, 3... Window hole, 4
...Blade piece, 5... Projection piece, K... Concrete pile, H... Excavation hole, B... Bulb part for foot protection.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A tip fitting fixed to the tip of a hollow concrete pile, etc. coaxially with the concrete pile, the fitting having an outer wall formed in a cylindrical shape; A concrete pile comprising a plurality of window holes drilled in an outer wall and a wing piece extending inwardly in a curved shape from one side of each window hole. etc. tip metal structure. (2) The tip metal structure of a concrete pile or the like according to claim 1 of the utility model registration claim, wherein the window hole is formed in a substantially rectangular shape and the blade piece is formed by a cutout member of the window hole. (3) Utility model registration claim No. 1, in which window holes are arranged in pairs at opposite positions on the circumference at the same height on the outer wall, and a pair of blade pieces are arranged in a screw shape. Tip structure of concrete piles, etc. as described in section. (4) The tip metal structure of a concrete pile or the like as set forth in claim 1 of the utility model registration claim, in which a plurality of window holes and blade pieces are arranged on the circumference of an outer wall at different heights.