| 摘要 |
<p>A rotary valve (101) is interposed between an intake pump (134) and an exhaust pump (136) for supplying an air, and at least one suction head (135a,135b) or one nozzle that performs a predetermined operation upon reception of the air supplied from the intake (134) and exhaust (136) pumps, to supply/stop supplying the air. This rotary valve (101) includes a valve body (106), a main body (102), a notch (113a,113b), and a hollow portion (114). The valve body (106) is rotatably driven in a cylinder. The main body (102) rotatably supports the valve body (106). The notch (113a,113b) is formed in a circumferential surface of the valve body (106) and is connected to the intake pump (134). The hollow portion (114) is formed in the valve body (106) in an axial direction and is connected to the exhaust pump (136).</p> |
