DOOR LATCH WITH FAST UNLOCK

摘要

A closure latch assembly for a vehicle door comprising a lock link operatively connected to a ratchet is provided. The latch assembly is configured to quickly move the lock link to an unlocking position and thus the ratchet to an open position when a user activates a motor of the latch assembly, for example using a key fob. Thus, an impatient passenger can quickly open the door, even while other components of the latch assembly are still moving toward their respective unlocking positions.

主权项

1. A latch assembly for use with a striker and a lock knob assembly within a vehicle, the latch assembly comprising:
a ratchet moveable between a closed position in which the striker is retained within the latch and an open position in which the ratchet releases the striker from the ratchet; a link operatively coupled to said ratchet and movable between a lock position holding said ratchet in said closed position and an unlocked position allowing said ratchet to move to said open position; an inside lock lever operatively coupled to said ratchet and moveable between a door lock position and a door unlock position for connecting to the lock knob assembly for moving the lock knob assembly and the ratchet in response to rotation of said inside lock lever; and a transfer assembly interconnecting said link and said inside lock lever and including a first gear being rotatable and having a first radius and connected to said link for providing said movement of said link, and a second gear rotatable and having a second radius and connected to said inside lock lever for providing said movement of said inside lock lever, and wherein said second radius of said second gear is larger than said first radius of said first gear for rotating said first gear at a higher speed and with lower torque than said second gear to quickly move the link and for rotating said second gear at a lower speed and with higher torque than said first gear to forcefully move said inside lock lever.