| 摘要 |
PURPOSE:To prevent a high pressure air tool from abnormal heating and to improve its workability by spraying the interior of the driving portion and the tool portion of said air tool with lubricant containing air. CONSTITUTION:The high pressure air flowed from the air inlet 2 of the grip 3 contains oil content through the filter plate 8 and then is supplied to the box value 15. The above-mentioned high pressure air is supplied in turn into the upper piston 34 and the lower one 35 to reciprocate the working tool 40. The above-mentioned high pressure air lubricates and cools the pistons 34, 35, while all of the piston exhaust passes through the through hole 31, is supplied to the crank body 36 and finally exhausted to the working tool 40. |
