Title:
分割支保工の連結構造
Document Type and Number:
Japanese Patent JP6969061
Kind Code:
B2
Abstract:
To provide a technology for a connection structure for connecting a pair of divided supporting, the technology inhibiting a male type connection part and a female type connection part from being connected in an erroneous combination in the case of joining joint plates of the pair of divided supporting to each other at a plurality of locations.SOLUTION: A connection structure for divided supporting comprises: a first top end joint plate and a second top end joint plate that are provided at respective top end parts of a pair of divided supporting and are to be brought into contact with each other when the pair of divided supporting are connected; a first female type connection part and a second female type connection part that are provided on the first top end joint plate in a recessed manner; and a first male type connection part and a second male type connection part that are provided on the second top end joint plate in a projected manner. The first female type connection part includes a first insertion port into which the first male type connection part can be inserted. The second female type connection part includes a second insertion port into which the second male type connection part can be inserted. The diameter of the first insertion port is smaller than that of the second insertion port. The diameter of the first male type connection part is smaller than that of the second male type connection part and that of the first insertion port. The diameter of the second male type connection part is larger than that of the first insertion port and is smaller than that of the second insertion port.SELECTED DRAWING: Figure 14
Inventors:
Kazuhiko Mizutani
Makoto Sakashita
Suzuki Ayumi
Shinichiro Ozaki
Makoto Sakashita
Suzuki Ayumi
Shinichiro Ozaki
Application Number:
JP2017217164A
Publication Date:
November 24, 2021
Filing Date:
November 10, 2017
Export Citation:
Assignee:
MAEDA CORPORATION
International Classes:
E21D11/40; E21D11/18
Domestic Patent References:
| JP2017115446A | ||||
| JP63031524U | ||||
| JP2004024333A | ||||
| JP2000045695A | ||||
| JP2004332209A | ||||
| JP9078993A | ||||
| JP62055781U | ||||
| JP9177186A | ||||
| JP2017106272A |
Attorney, Agent or Firm:
Akira Hirakawa
Hiroyuki Homma
Hiroyuki Homma
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