US 12,241,524 B2
Block lock with short locking distance
Janis Quinting, Menden (DE)
Assigned to THIELE GMBH & CO. KG, Iserlohn (DE)
Appl. No. 17/631,131
Filed by THIELE GMBH & CO. KG, Iserlohn (DE)
PCT Filed May 8, 2020, PCT No. PCT/DE2020/100389
§ 371(c)(1), (2) Date Jan. 28, 2022,
PCT Pub. No. WO2021/018335, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 20 2019 104 16.3. (DE), filed on Jul. 29, 2019.
Prior Publication US 2022/0260134 A1, Aug. 18, 2022
Int. Cl. F16G 15/04 (2006.01); F16G 15/02 (2006.01)
CPC F16G 15/04 (2013.01) [F16G 15/02 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A block lock for connecting two chain ends, comprising:
in a locked state, two oppositely located block-lock halves which extend in a longitudinal direction of the block lock, wherein the two block-lock halves interengage in a form-fitting manner via a respective stub and stub socket, and the two block-lock halves lock to form an opening for accommodating a chain link, and the two block-lock halves each have an end, and the two block-lock halves interengage in a comb-like manner at each of the ends, and the two block-lock halves lock to one another via a displacement distance in the longitudinal direction, wherein the displacement distance is smaller than 10% of a diameter of the chain link, wherein an extended portion at one end of each of the two block-lock halves has at least three comb-like fork extensions, and
wherein the at least three comb-like fork extensions externed parallel alongside each other in the longitudinal direction.