Patent ID: 9663978
Date: 2017-05-30
CPC Classifications: E05B,E05C,Y10S,Y10T

Claim:
1. A rotating latch lock, the lock comprising a latch rotating between at least one closed position suitable for retaining a closing anchor, and another open position which releases the anchor, stressed by a first spring in the release direction, and a pawl also rotating between a locked position, in which the pawl retains the latch in the closed position, and another release position, in which the pawl does not interfere with the rotation of the latch, the pawl being subjected to action of a second spring which pushes the pawl to the closed position, the lock further comprising transmission means for moving a movable arm in a direction transmitting a movement to the pawl from the closed position to the release position, the movable arm being linked with the pawl such that the angular position of the movable arm acts as a stop for stopping the rotation of the pawl towards the locked position, wherein the movable arm of the pawl comprises a flange the distal end of which is supported on a smooth surface of the latch adjacent to an edge of the latch, temporarily bending the flange when the latch is in the closed position retained by the pawl, and wherein a length of the flange is such that a distal end of the flange slides on the smooth surface of the latch when the movable arm is moved to push the pawl to the release position, and is released from the latch, so that the flange automatically recovers a stable form, being supported against the edge of the latch and preventing return of the movable arm and therefore of the pawl to the closed position as a result of the second spring.