Title:
UNDERWATER BASE ROCK CRUSHING MACHINE
Document Type and Number:
Japanese Patent JP3283027
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an underwater base rock crushing machine capable of performing underwater base rock crushing works even though in a narrow, limited working space, on a steeply sloped base rock or at a place where the water depth of the base lock is great.
SOLUTION: This underwater base rock crushing machine comprises a hydraulic breaker 2 crushing the base rock by knocking the base rock with a hydraulic force and a supporting frame 3 supporting the hydraulic breaker 2 which is suspended by a wire 97 connected to a crane in a liftable manner. The supporting frame 3 is equipped with an outer frame 4 suspended by the wire 97 and an inner frame 5 provided in a freely movable manner back and forth inside the outer frame 4. And the hydraulic breaker 2 is fixed to the front portion 5b inside the inner frame 5 with the driving direction aligned with the back and forth direction of the breaker 2, and a weight 6 is fixed to the rear portion 5a of the inner frame 5.
Inventors:
Kazuma Nakatsuka
Yasuko Ohmori
Shuichi Takahashi
Hideki Komiyama
Gosuke Toshimi
Tamotsu Konishi
Yasuko Ohmori
Shuichi Takahashi
Hideki Komiyama
Gosuke Toshimi
Tamotsu Konishi
Application Number:
JP2000010716A
Publication Date:
May 20, 2002
Filing Date:
January 19, 2000
Export Citation:
Assignee:
Underwater Development Co., Ltd.
Nishimatsu Construction Co., Ltd.
Nishimatsu Construction Co., Ltd.
International Classes:
E02D17/16; B02C1/00; B25D17/28; (IPC1-7): E02D17/16; B02C1/00; B25D17/28
Domestic Patent References:
| JP74070A | ||||
| JP5796213U | ||||
| JP742682U |
Attorney, Agent or Firm:
Hiroshi Arafune (1 person outside)