PURPOSE: To remove burrs from scavenging ports by oscillation of hammers and to improve deburring efficiency by extending the hammers into the scavenging passage through a base plate fixed a cyliner body attachably and detachably and positioning the head parts of the hammers so as to face the scavenging ports.
CONSTITUTION: A cylinder body 12 having burrs at scavenging ports is fixed to a base plate 32 attachably and detachably. Head parts 102b, 104a facing scavenging ports 18b, 20a are projected to the leading ends of a pair of hammers 78b, 80a extending into a pair of right and left scavenging passages 24b, 26a through the plate 32, and a pair of the right and left hammers 78b, 80a are oscillated by an actuator 68, whereby the burrs attached on the scavenging ports are removed when the head parts 102b, 104a cross the ports 18b, 20a.
OOHASHI KANICHI
YONEZAWA SHIGEKI
| JPS5464793A | 1979-05-24 | |||
| JPS5263121A | 1977-05-25 |