US 12,262,500 B1
Chassis interlock latch with auto-lock mechanism
Chen An, Secaucus, NJ (US); Mahesh Kumar Varrey, Secaucus, NJ (US); Zichun Song, Secaucus, NJ (US); and Robert Hastings, Secaucus, NJ (US)
Assigned to ZT Group Int'l, Inc., Secaucus, NJ (US)
Filed by ZT Group Int'l, Inc., Secaucus, NJ (US)
Filed on Dec. 27, 2021, as Appl. No. 17/562,580.
Int. Cl. H05K 7/14 (2006.01)
CPC H05K 7/1489 (2013.01) 15 Claims
OG exemplary drawing
 
1. An apparatus comprising a first latch including:
a pin configured to move between an extended position and a retracted position, the pin including a shoulder;
a first spring biasing the pin toward the extended position;
a first slider movable between a first overlapping position and a first non-overlapping position with respect to the shoulder;
a second spring biasing the first slider toward the first overlapping position;
a second slider moveable between a triggering position and a non-triggering position with respect to the pin;
a third spring biasing the second slider toward the triggering position, wherein:
when the pin is in the retracted position and the second slider is in the non-triggering position, the second spring urges the first slider to the overlapping position in which the first slider prevents the pin from being moved to the extended position by the first spring; and
when the pin is in the retracted position with the first slider overlapping the shoulder, movement of the second slider to the triggering position moves the first slider from the overlapping position, which allows the pin to be moved by the first spring to abut the second slider at a first intermediate position between the retracted position and the extended position.