| 摘要 |
A safety gate unit is provided to prevent the shake of a door or noise occurrence by the play of a driving unit even if a user touches a door through carelessness by having a driving unit and a braking unit, to reduce failure rate, production costs and maintenance costs by simplifying the structural elements of each component and the structure of a link unit, to let users evacuate easily by stopping a door at the opened state without the emergency power supply of a motor by restricting the movement of a main link with a fixed point support. A safety gate unit comprises a first safety gate(100) and a second safety gate(100') managing the access of users, wherein the first safety gate comprises a door(1) restricting the access of users, a driving unit controlling the operation of the door, a sensor unit sensing the movement orbit of the door and controlling the power of the driving unit, a braking unit restricting the movement of the door when the door opens or closes and enabling to absorb the play of a forward motor, a speed reducer and a coupling, thereby having no shake and making silent drive possible even if a user shakes a door, and a link unit(5) connected with the door and supplied with the power of the driving unit to open or close the door, wherein a fixed point support(55) of the link unit restricts the range of movement of a main link(53) to make the center of gravity located on a main link fixture(531) to stop the door connected with the main link stopped at the opened state even if the emergency power supply is cut off and contains an elastic member such as rubber or silicon to prevent the fixed point support and the main link from being damaged or generating an explosive sound when the fixed point support makes contact with the main link. |
