초록 ▼

A coupler assembly (46, 48) is suspended from a forward section (12) of a boom (14) that projects from a mobile base (18). An upper end portion (160) of a pipe piling (P) is gripped by a pair of clamp jaws (148, 150). The clamp jaws (148, 150) are movable together and apart and they are mounted for

A coupler assembly (46, 48) is suspended from a forward section (12) of a boom (14) that projects from a mobile base (18). An upper end portion (160) of a pipe piling (P) is gripped by a pair of clamp jaws (148, 150). The clamp jaws (148, 150) are movable together and apart and they are mounted for rotation around a common axis. This allows an end portion (160) of a pipe piling (P) to be gripped by the clamp jaws (148, 150) while the pipe piling (P) is in a substantially horizontal or some other non vertical position. Then, the coupler assembly (46, 48) can be lifted to lift the gripped end portion (160) of the pipe piling (P) upwardly. As end portion (160) moves upwardly, the clamp jaws (148, 150) will rotate in position so as to enable the pipe piling (P) to swing upwardly while its lower end is on a support surface. The rotation of the clamp jaws (148, 150) will continue until the pipe piling (P) is suspended from the lifting boom section (12) and is in a substantially vertical orientation.

대표청구항 ▼

1. A vibratory pile driver, comprising:a vibrator having an upper portion that is adapted to be connected to a supporting structure that is above the vibrator, and a lower portion; and a chuck assembly connected to the lower portion of the vibrator, said chuck assembly including: a pair of horizonta

1. A vibratory pile driver, comprising:a vibrator having an upper portion that is adapted to be connected to a supporting structure that is above the vibrator, and a lower portion; and a chuck assembly connected to the lower portion of the vibrator, said chuck assembly including: a pair of horizontally disposed linear hydraulic actuators, each said actuator comprising a fixed outer end portion and a retractable/extendable/rotatable inner end portion, and a pair of pile-engaging clamps connected to the inner end portions of the actuators, said clamps confronting each other and being adapted to receive a piling between them, whereby the actuators can be retracted to move the clamps apart and provide between them a piling receiving space, and the actuators can be extended to move the clamps towards each other and into clamping engagement with a piling that has been placed in said space between the clamps.