EP 0174548 B1 19901024 - RING MECHANISM FOR LOOSE-LEAF BINDERS
Title (en)
RING MECHANISM FOR LOOSE-LEAF BINDERS
Publication
Application
Priority
DE 3433124 A 19840908
Abstract (en)
[origin: US4690580A] The ring binder mechanism comprises a resilient mechanism cover which can be connected to the spine of a binder or cover, two toggle plates or toggle rods which are articulately connected in opposite senses and which are resiliently supported in the mechanism cover, and ring portions which cooperate in pairs to form rings and which are carried by the toggle plates or toggle rods, consist of drawn or rolled metal wire of non-round cross-section and have ends which positively interengage locally in the closed position. At their free ends, the ring portions have plane end faces which bear snugly against one another in the closed position and one ring portion of each pair of ring portions having a pin which is cylindrical over at least its main length and which projects perpendicularly from the end face and the other ring portion having a bore which is cylindrical over at least its main length and is sunk perpendicularly in the end face.
IPC 1-7
IPC 8 full level
B42F 13/22 (2006.01)
CPC (source: EP US)
B42F 13/22 (2013.01 - EP US); F02D 41/1456 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE FR GB IT
DOCDB simple family (publication)
EP 0174548 A2 19860319; EP 0174548 A3 19871014; EP 0174548 B1 19901024; AT E57656 T1 19901115; CA 1259240 A 19890912; DE 3433124 A1 19860320; DE 3580224 D1 19901129; DK 164212 B 19920525; DK 164212 C 19921026; DK 396985 A 19860309; DK 396985 D0 19850830; FI 82215 B 19901031; FI 82215 C 19910211; FI 853427 A0 19850906; FI 853427 L 19860309; US 4690580 A 19870901
DOCDB simple family (application)
EP 85110749 A 19850827; AT 85110749 T 19850827; CA 489118 A 19850821; DE 3433124 A 19840908; DE 3580224 T 19850827; DK 396985 A 19850830; FI 853427 A 19850906; US 76953085 A 19850826