Backstay retraction device of the three-point support type pile driver

摘要

(57) Abstract Objective Time motive structure of back stay pulling included arm simpleIt does. Constitution Outrigger beam 15 in hull crosswise time motionTo provide possibly in hull 11, batsu of outrigger beam 15In kusute installation volt/bolt hole 15a vicinity, back stay retreatAs seeing arm 19 time motion is provided possibly in horizontal direction,End face 23of a cylinder 23 in hull 11, rod 23bTo install the Tip in back stay pulling included arm 19, batsuRegulating the time motion of kusute pulling included arm 19, the outriggerbimu 15 time motion of time moving and outrigger beam 15It regulates as, back stay pulling included arm 19Releasing time dynamic regulation, back stay pulling included arm 19Time motion is done.