초록 ▼

The invention relates to a method, and to an arrangement, for optimizing the operation of a door closer at different phases of opening and closing of the door. The door closer is provided with a force transmission shaft (1) turning in accordance with the movements of the door and with a spring eleme

The invention relates to a method, and to an arrangement, for optimizing the operation of a door closer at different phases of opening and closing of the door. The door closer is provided with a force transmission shaft (1) turning in accordance with the movements of the door and with a spring element (2) operationally connected thereto. The opening of the door takes place against the force of the spring element (2). According to the invention, at the closing phase of the door the energy of the spring element (2), exceeding the return force of the spring element (2) needed to accomplish the desired closing movement of the door, is recovered through simultaneous braking of the closing movement of the door for the main part of the closing movement. When the door is only somewhat open any more, preferably under 5°, a final force securing the closing of the door is accomplished by making use of said recovered energy. For putting the method into practice, the door closer is provided with rotor (4), stator (5) and energy storing device (7), arranged to serve as an electric generator or as an electric motor as required.

대표청구항 ▼

A method for optimizing the operation of a door closer during different phases of opening and closing of a door, which door closer is provided with a force transmission shaft turning in accordance with the movements of the door and with a spring element operationally connected thereto and in which o

A method for optimizing the operation of a door closer during different phases of opening and closing of a door, which door closer is provided with a force transmission shaft turning in accordance with the movements of the door and with a spring element operationally connected thereto and in which opening of the door takes place against the force of the spring element, said method including the steps of: (a) during an initial part of the closing phase of the door, recovering energy of the spring element in excess of that needed to accomplish the desired closing movement of the door, by providing the door closer with rotor means in force transmission connection with said force transmission shaft, stator means operationally connected with the rotor means, and energy storage means, and arranging for the rotor means and stator means jointly to generate electric power in response to turning movement of the force transmission shaft, whereby the closing movement of the door is braked, (b) storing energy recovered in step (a) in said energy storage means, and (c) during a final part of the closing phase of the door, using energy stored in the energy storage means to apply a force to the door to secure the closing of the door.