| 摘要 |
THERE IS PROVIDED AN INJECTOR HAVING A GASKET HELD IN EXCELLENT INTIMATE CONTACT WITH AN INNER WALL SURFACE OF A BARREL (4) AND SHORTENED IN OVERALL LENGTH. A GASKET (6) IS JOINED TO A MOUNT BASE (10) DISPOSED ON A TIP END OF A PLUNGER (5) AND HAVING A BENDABLE PORTION (14) WHICH BENDS TO-WARD AN AXIS OF THE PLUNGER (5) RADIALLY OUTWARDLY OF THE MOUNT BASE (10). THE GASKET (6) IS JOINED TO THE MOUNT BASE (10) WITH A GAP LEFT FOR ALLOWING THE BENDABLE PORTION (14) TO BEND TOWARD THE TIP END OF THE PLUNGER (5) WHEN THE GASKET (6) SLIDES TOWARD AN INJECTION NEEDLE (2). THE GASKET (6) IS MADE OF A SYNTHETIC RESIN HAVING A-SCALE SHORE HARDNESS IN THE RANGE FROM 20 TO 70. THE GASKET (6) HAS A GROOVE (16) DE-FINED THEREIN RADIALLY OUTWARDLY OF THE MOUNT BASE (10), AND THE BENDABLE PORTION (14) COMPRISES A PORTION OF THE GASKET (6) DISPOSED RADIALLY OUTWARDLY OF THE GROOVE (16).(FIG 1)
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