| 摘要 |
<p>PURPOSE:To make the change-over mechanism compact by installing an oscillating pipe on a disk moving in a reciprocating motion around a revolving shaft, and by connecting a main pipe to a circuit pipe group through the oscillating pipe. CONSTITUTION:Actuation of an actuator 22 gives a disk 12 a reciprocating motion around its revolving shaft 17 and in the range of an angle alpha. An oscillating pipe fixed on the disk 12 also moves by the angle alpha along an arc l within an opening 10 and the pipe 19 is connected to one of two circuit pipes, A or B, provided on a casig 9. Thus a flow path of powdered materials pressure-transferred in a direction of an arrow mark in a main pipe 21 is changed over to either one of the circuit pipe A or circuit pipe B through the oscillating pipe 19.</p> |
