Reverse impact device for a rod withdrawal of the impact tool

摘要

(57) Abstract Objective Unnecessary bombardment of converse percussion device for rod pulling outIt prevents, improves endurance. Constitution Inside cylinder 11 on front and back the reciprocate the main piste which is donen to be installed by the front of 5 and this main piston 5, the main pistonThe shank rod 1 where it can give bombardment with ahead motion of 5 and,In front of spline 9 of this shank rod 1 Inlaying puttingThe ring where the compressed fluid is enclosed with te front caps 2In the bombardment tool which has with the sub- piston 3 which forms the condition chamber 7Being, when doing converse bombardment, sub- piston 3 the frontAfter containment in non-impact position, the annular chamber 8 is provided.