| 摘要 |
<p>PURPOSE: To facilitate disassembling and assembling and to simplify a constituting unit by dividing a heat passage distributor combined integrally with a piston driver into individual blocks, matching a discharging opening of the distributor to inputting openings of individual blocks, and disposing them. CONSTITUTION: A piston 4 for driving each closing needle 3 is coaxially disposed in a heat passage distributor to a closing needle. In this case, the distributor is divided into individual blocks 7. Further, a heat passage distributor 6 is projected into a range of the blocks 7. A discharging opening 8 of a supply passage 9 provided at the main heat passage distributor is matched to an inputting opening 10 of a supply passage 11 continued to the passage 9 provided at the blocks 7. Thus, a piston/cylinder driver can be combined together with the blocks 7 belonging to the driver, and can be disassembled with a low entire height.</p> |
