| 摘要 |
<p>A system and method for minimizing door related injuries are disclosed. Briefly, a mechanism requiring little or no external power is used to vary the force needed to open a door. If an obstruction (i.e. a person, pet, etc) is within the sweep of the opening door, the force needed by the user to push open the door will be increased, to give the user tactile feedback that an accident may be imminent. The feedback mechanism can be implemented in a variety of ways, including embodiments that require no external power or battery. A sensor is used to detect the presence of an obstruction within the sweep of the door. In a further embodiment, a mechanism is used to slow or stop a door from closing if an obstruction (such as a finger) is in the return path of the door.</p> |
