An actuator (21) includes a gas generator (70) that generates an actuating gas when actuated, a housing section (22) that houses and holds the gas generator and a pressing section (52) that is deployable with an actuating gas in such a fashion as to move forward relative to the housing section and be separated from the housing section. The pressing section and the housing section are slidable against each other. Either one out of sliding portions (22a; 52a) of the pressing section and housing section serves as an inner section (22a) that is located closer to a moving central axis (C) of the pressing section than the other whereas the other out of the sliding portions of the pressing section and housing section serves as an outer section (52a) that surrounds the inner section (22a). The gas generator (70) is located closer to the moving central axis (C) than the sliding portion (52a) of the pressing section and partially overlaps with a part (52b) of the pressing section (52) in an inactive state.
アクチュエータ
2017-08-30
Patent
Electronic Resource
Japanese