Title:
PILE CAP OF PILE EXTRACTION MACHINE, AND PILE EXTRACTION METHOD USING PILE CAP
Document Type and Number:
Japanese Patent JP2019035268
Kind Code:
A
Abstract:
To provide a method of safely extracting an existing pile.SOLUTION: A pile cap of a pile extraction machine for extracting an existing pile P comprises: an approximately cylindrical inner cylinder portion 3; a cap body 2 provided at an outer side of the inner cylinder portion 3 movably along the inner cylinder portion 3; claws 7a,7c shaft-supported on an outer peripheral wall of the cap body 2; and an inner cylinder portion window 3W and a cap body window 2W respectively penetrating and provided in the inner cylinder portion 3 and the cap body 2 so that the claws 7a,7c can stand in an inside of an inner peripheral wall 3N of the inner cylinder portion 3. Moving the cap body 2 upward with respect to the inner cylinder portion 3 stands the claws 7a,7c in the inside of the inner peripheral wall 3N of the inner cylinder portion 3. Meanwhile, moving the cap body 2 downward with respect to the inner cylinder portion 3 lays the claws 7a,7c to the inner peripheral wall 3N side of the inner cylinder portion 3.SELECTED DRAWING: Figure 3
Inventors:
TOKUNAGA YONEJI
TOKUNAGA TETSUYA
TOKUNAGA TETSUYA
Application Number:
JP2017157476A
Publication Date:
March 07, 2019
Filing Date:
August 17, 2017
Export Citation:
Assignee:
TOKUNAGAGUMI KK
International Classes:
E02D9/02
Attorney, Agent or Firm:
Kazumasa Okumura