Title:
掘削バケットおよび場所打ち杭の構築方法
Document Type and Number:
Japanese Patent JP7025986
Kind Code:
B2
Abstract:
To provide excavation buckets that can ensure the verticality of pile holes even when there are hard parts in the ground.SOLUTION: An excavation bucket 1 is attached to an excavator that excavates the ground to form a pile hole. The excavation bucket 1 includes a cylindrical trunk portion 20 that can be attached to a lower end of a kelly-bar 14 of the excavator, and a bottom plate 30 that closes an opening on a bottom surface of the trunk portion 20 and is provided with an excavation bit 32. A plurality of blades 40A to 40I are spirally provided on an outer peripheral surface of the trunk portion 20.SELECTED DRAWING: Figure 1
Inventors:
Yoshihiro Uemura
Shigeyuki Negami
Yoshinori Tagawa
Tomohiro Kaneshiro
Yasuo Nakata
Hisashi Matsuda
Shigeyuki Negami
Yoshinori Tagawa
Tomohiro Kaneshiro
Yasuo Nakata
Hisashi Matsuda
Application Number:
JP2018086439A
Publication Date:
February 25, 2022
Filing Date:
April 27, 2018
Export Citation:
Assignee:
Taisei Corporation
Marugo Foundation Industry Co., Ltd.
Marugo Foundation Industry Co., Ltd.
International Classes:
E21B11/00
Domestic Patent References:
| JP61125587U | ||||
| JP2014034763A | ||||
| JP2004324272A | ||||
| JP2000337069A |
Attorney, Agent or Firm:
Hisato Kuroiwa
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