L-SHAPED REACTION FORCE BAR FOR ROTARY JACKING DEVICE, AND ROTARY JACKING DEVICE PROVIDED WITH L-SHAPED REACTION FORCE BAR

Japanese Patent JP3935398

B2

PROBLEM TO BE SOLVED: To provide a rotary jacking device provided with L-shaped reaction force bar, and an L-shaped reaction force bar, in which lateral size in the rotary jacking device can be restricted, so that it can be constructed even in a narrow place.
SOLUTION: This reaction force bar is provided with an engagement part 2 to be engaged with a reaction force receiving part 59 of a crawler vehicle 61 at the tip part, and an installation part to be installed on the rotary jacking device 15 on the base end side. It is composed of a reaction force bar main body 1 provided with an engagement part 2 at the tip part to be extended in the front-to-rear direction, and a base end side main body 8 integrally provided on the base end part of the reaction force bar main body 1 to be extended in the lateral direction. The installation part to be installed on the rotary jacking device 15 is provided in the center axial line direction extended in the front-to-rear direction of the reaction force bar main body 1 is provided in the lateral direction end side of the base end side main body 8 at a position apart in the center axial line direction extended X in the front-to-rear direction of the reaction bar main body 1.

Akira Komatsu
Kazuhiro Ueda
Tadanori Aoki

JP2002176080A

June 20, 2007

June 17, 2002

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Nippon Steel Corporation
Nippon Steel Engineering Co., Ltd.

E02D7/22; (IPC1-7): E02D7/22

JP2002138476A

Nobuyuki Hayashi
Takehiko Katayose
Toshihide Mori
Yasuhiko

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