Patent ID: 6152498
Filing Date: 2000-11-28
Classification: E05C,Y10T

Abstract:
A latch assembly for installation in a recess along a side edge of a wing element, for covering or uncovering an aperture, wherein said latch assembly is adapted to hold said wing element in a closed position, said assembly comprising:a housing having at least one wall;at least one espagnolette bolt, said espagnolette bolt being slidingly arranged in said housing between a first open position, wherein said espagnolette bolt is retracted into said housing, and a second latching position, wherein said espagnolette bolt projects from said housing to engage with a catch;an espagnolette rod operatively connected to said espagnolette bolt for maneuvering said espagnolette bolt between said first open position and said second latching position; anda latching pin non-attachedly arranged for free displacement with said espagnolette bolt, during movement of said espagnolette bolt from said first open position to said second latching position and back;wherein said latching pin is movably arranged in a guiding slot having a perimeter wall, said guiding slot being arranged in at least one of said at least one wall of said housing and being of a double arc shape and extending in a direction generally parallel to the extension of said espagnolette rod, said guiding slot comprising a first portion, shaped to allow said latching pin to slidingly move from a first position, at which said espagnolette bolt is in its first open position, to an intermediate position at which said espagnolette bolt is approaching its second latching position, and a second portion shaped to allow said latching pin to assume a third locking position in which said espagnolette bolt is locked in its second latching position by action of said latching pin against said perimeter wall of said guiding slot in said wall of said housing; andwherein said espagnolette bolt is provided with a slot which partially overlaps said guiding slot in at least one side wall of said housing such that said latching pin is constrained to slide laterally within said slot in said espagnolette bolt.