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1. (WO1991005931) PISTON TUMBLERS FOR A CYLINDERLOCK WITH CHANGEABLE COMBINATION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/005931 International Application No.: PCT/EP1990/001665
Publication Date: 02.05.1991 International Filing Date: 04.10.1990
IPC:
E05B 15/14 (2006.01) ,E05B 27/00 (2006.01) ,E05B 67/24 (2006.01)
E FIXED CONSTRUCTIONS
05
LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
B
LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
15
Other details of locks; Parts for engagement by bolts of fastening devices
14
Tumblers
E FIXED CONSTRUCTIONS
05
LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
B
LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
27
Cylinder locks with tumbler pins or balls that are set by pushing the key in
E FIXED CONSTRUCTIONS
05
LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
B
LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
67
Padlocks; Details thereof
06
Shackles; Arrangement of the shackle
22
Padlocks with sliding shackles, with or without rotary or pivotal movement
24
with built-in cylinder locks
Applicants:
DI MOTTA, Benito [IT/IT]; IT
Inventors:
DI MOTTA, Benito; IT
Agent:
ROBBA, Eugenio ; Studio "Interpatent" Via Caboto, 35 I-10129 Turin, IT
Priority Data:
64811 A/8917.10.1989IT
Title (EN) PISTON TUMBLERS FOR A CYLINDERLOCK WITH CHANGEABLE COMBINATION
(FR) GACHETTES DE PISTONS POUR SERRURE A CYLINDRE A COMBINAISON CHANGEABLE
Abstract:
(EN) Small pistons having an improved additional structure for a cylinder safety lock comprising an outer block cylinder (2) and an inner cylinder (3) rotatable within the former. Each composite lower pin (20) of a safety lock comprises a hollow piston (8) and a peg (9) slidably received within the piston, and the upper pins (7) of the outer cylinder are of a magnetic material to attract metal holed disks housed in cylindrical seats (17) of the outer cylinder (2) to automatically replace the opening key (1) with another key (1') having a different profile.
(FR) Petits pistons ayant une structure suplémentaire améliorée, destinée à une serrure de sécurité cylindrique, comprenant un bloc-cylindre extérieur (2) et un cylindre intérieur (3) rotatif dans le bloc-cylindre. Chaque goupille inférieure composite (20) d'un cadenas de sécurité comprend un piston creux (8) ainsi qu'une cheville (9) reçue de manière coulissante dans le piston, et les goupilles supérieures (7) du cylindre extérieur sont en matière magnétique afin d'attirer des disques métalliques troués, logés dans les sièges cylindriques (17) du cylindre extérieur (2), afin de remplacer automatiquement la clé d'ouverture (1) par une autre clé (1') ayant un profilé différent.
Designated States: AU, CA, JP, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0456773CA2044145AU1990065156