| 摘要 |
<p>The present invention refers to a device used to automatically lock shutters in maximum open position, which comprises a support shelf with a slot on the side, and wall fixing means in the back; a slider is overturned and slides outside the slot, with two upper fixed catches that act as housing for the shutter and a lower knob that protrudes downwards and is used to release the shutter from the maximum open position; it being provided that the shelf is suitably shaped to cooperate with the slider to cause automatic engagement when the slider is overturned and slides backwards.</p> |
