Title:
ケーブルテンションシステム及び動作方法
Document Type and Number:
Japanese Patent JP2007519842
Kind Code:
A
Abstract:
A concrete reinforcement cable tensioning system is variably adjustable to apply different crimping for different sized cables. The system includes a concrete reinforcement cable tensioner having a first actuator for tensioning a cable extending through a concrete structure and a second actuator for crimping a grommet onto the cable. A first hydraulic line is in fluid communication with the first actuator and selectively provides pressurized hydraulic fluid to the first actuator. A second hydraulic line is in fluid communication with the second actuator and selectively provides pressurized hydraulic fluid to the second actuator. A normally closed pilot operated sequencing valve is disposed in the first hydraulic line, and has a pilot line in fluid communication with the second hydraulic line for sensing a pressure in the second hydraulic line, wherein the sequencing valve opens to exhaust hydraulic fluid from the first actuator upon the pressure in the second hydraulic line reaching a predetermined pressure. The predetermined pressure is variably changeable to accommodate different pressures required to crimp grommets on different sizes of cable.
Inventors:
Forge, Curl, A.
Arters, Edward, Tee.
Pili, Roger, Earl.
Arters, Edward, Tee.
Pili, Roger, Earl.
Application Number:
JP2006551488A
Publication Date:
July 19, 2007
Filing Date:
February 02, 2005
Export Citation:
Assignee:
Actuant Corporation
International Classes:
E04G21/12
Domestic Patent References:
| JPS5034335A | 1975-04-02 | |||
| JPS5034335A | 1975-04-02 |
Foreign References:
| DE1559093A1 | 1969-09-04 | |||
| DE1559093A1 | 1969-09-04 |
Attorney, Agent or Firm:
Takao Kawasaki
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