PADLOCK WITH A HOOK Russian patent published in 1996 - IPC

FIELD: door locking in homes and industry. SUBSTANCE: padlock has case 1 in the form of rectangular prism with a package of spring loaded insertion- fixers 8 interacting with recesses 9 originated on one end of locking bow 6. Support rods 10 and 11 are installed in parallel in case 1. The rods are fixed in blind holes originated on the side of lower face. The holes intersect passages 13 with insertion-fixers 8 installed in. Latter have crosswise slots 14 on one side. The slots come in contact with support rods 10 and 11. Segment recesses 15 are originated on the other side of insertions-fixers with various spacing to support butt 16. Key is made in the form of a plate with semi-ring clamp to interact to support member 19 installed in lock case. Pins of different size are made on lateral surface of the plate to interact to female insertions-fixers 8. Protective U-shaped bracket 22 is installed over input holes of passages 13. The bracket is hinged to axle of support member 19. Opening 24 is originated on another side of the bracket to interact to spring loaded fixer 25. Interlayer of slightly deformed material is installed between bracket 22 and lateral face of case 1 to exclude possibility of duct and wet ingress in passages 13. Sealing ring 29 is installed on end 5 of locking bow 6. The ring is hold down to upper face of case 1 using threaded clamp 30 to exclude ingress of dust and wet in internal passages of the case. Blind threaded hole 31 is originated on opposite side in lock case. Circular disc 32 with false hole for false key is installed in hole 31. EFFECT: high reliability. 7 dwg