本发明为一种致动器及车门开闭用致动器,致动器包括:第一壳体(6);第二壳体(7);导引管(48);第三壳体;马达部(11),内置于第一壳体(6);螺杆轴(38),受到马达部(11)的轴(14)的旋转力而旋转驱动,并且对第三壳体(8)赋予动力;轴承座(39),设于第一壳体(6)内;内凸缘(46),设于第二壳体(7);外凸缘(49),设于导引管(48),且配置于在轴向上与内凸缘(46)重合的位置;密封部(50),由各凸缘(46)、凸缘(49)所夹持;及线圈弹簧(47),设于第二壳体(7)与导引管(48)之间,将内凸缘(46)向外凸缘(49)侧按压。
The present invention is provided with: a first housing; a second housing; a guide tube; a third housing; a motor part that is incorporated in the first housing; a screw shaft that is driven to rotate upon reception of the rotational force of a shaft of the motor part and applies power to the third housing; a bearing holder that is provided in the first housing; an inner flange that is provided in the second housing; an outer flange that is provided in the guide tube and that is arranged at a position where the outer flange overlaps the inner flange in an axial direction; a seal that is sandwiched between the inner and the outer flanges; and a coil spring (47) that is provided between the second housing (7) and the guide tube (48) and presses the inner flange (46) toward the outer flange (49) side.
致动器及车门开闭用致动器
2021-01-22
Patent
Elektronische Ressource
Chinesisch