| 摘要 |
An auto-restoring speed door is provided to prevent the deformation and breakage of a door sheet against external force and to secure safety of users by restoring a door sheet to the original state using elastic bars. The auto-restoring speed door comprises elastic bars installed to a door sheet of the speed door to be restorable to the original state and composed of a spring formed in the appointed length and support bodies connected to two ends of the spring, a sensor plate installed to the internal wall of a rail portion which is a course for the door sheet to ascend and descent and a sensor attached to the end of the support body, restoration guides installed to a door sheet winding portion to open and close a door sheet restoring space, a driving device such as a solenoid or a reversible motor connected to a hinge pin which connects the top of each restoration guide to the front and rear of an opening of the door sheet winding portion to operate the restoring guide, and a controller connected with the driving device of the door sheet winding portion, the driving device of the restoration guide and the sensor plate of the sensor to make an exchange of electric signals possible. |
