SEALING STRUCTURE IN DIRECT ACTING TYPE AUTO-BY STARTER

[OBJECT] TO PREVENT THE ENTRY OF AMBIENT AIR AND LIQUID SUCH AS RAINWATER INTO A DIRECT ACTING TYPE AUTO-BY STARTER (10) AND THEREBY PREVENT THE FORMATION OF RUST IN THE AUTO-BY STARTER (10), BY ADJUSTING PRESSURE FLUCTUATIONS IN THE AUTO-BY STARTER (10) CAUSED BY THE OPERATION OF A STARTING VALVE (2) FOR OPENING AND CLOSING A STARTING INTAKE PASSAGE (1C). [SOLVING MEANS] A STARTING VALVE (2) IS LIFTED BY UPWARDLY OPERATING A MANUAL LEVER (7), THEREBY OPENING A STARTING INTAKE PASSAGE (1C) TO START AN INTERNAL COMBUSTION ENGINE. A PRESSURE IN A SLIDING SPACE (2F) FOR THE STARTING VALVE (2) IS INCREASED BY THE LIFT OF THE STARTING VALVE (2), SO THAT THE GAS IN THE SLIDING SPACE (2F) FLOWS OUT OF THE SLIDING SPACE (2F). THE FLOW OF THE GAS IS ABSORBED BY AN INCREASE IN VOLUME INSIDE A BELLOWS BOOT (5) MOUNTED ON AN UPPER PORTION (2B) OF THE STARTING VALVE (2). WHEN THE STARTING VALVE (2) IS LOWERED BY THE OPERATION OF A SPRING MEMBER (6), THE PRESSURE IN THE SLIDING SPACE (2F) IS REDUCED TO ALLOW THE GAS FLOW FROM THE BELLOWS BOOT (5) INTO THE SLIDING SPACE (2F). THIS GAS FLOW IS ABSORBED BY A DECREASE IN VOLUME INSIDE THE BELLOWS BOOT (5), THEREBY PREVENTING THE ENTRY OF AMBIENT AIR AND WATER INTO THE AUTO-BY STARTER (10).