EP 0289978 B1 19920916 - DEVICE FOR SWITCHING POINTS
Title (en)
DEVICE FOR SWITCHING POINTS
Publication
Application
Priority
FR 8706315 A 19870505
Abstract (en)
[origin: US4842225A] An operating device for a railroad switch, the device comprising a right drive rod (5) connected to a right point blade (1), a left drive rod (6) connected to a left point blade (2), and a moving carriage (7) driven by a motor between a right locking plate (12) and a left locking plate (13). The plate is held in position by a frame (36). The right drive rod (5) is situated between the right locking plate (12) and the carriage (7) and being received in a right groove (14) of the carriage. The left drive rod (6) is situated between the left locking plate (13) and the carriage (7) by being received in a left groove (15) of the carriage. Each drive rod (5, 6) is provided with two floating pegs (8 to 11) extending perpendicularly to the grooves and each is received in a corresponding notch (16 to 19) in the rod. Each locking plate includes at least one vertical locking recess (20, 21) having sloping side walls, and the width of the carriage between the locking plates comprising: at each end, a first step (22, 22A) of width no greater than the distance L between the two locking plates less twice the diameter D of a floating peg; followed on each side of the carriage going axially towards the middle of the carriage by a second step (23, 23A) of width lying between L-2D and L-D; and finally by a middle step (24) of width less than L and greater than the width of the second step, with each transition between a first step and a second step taking place via a sloping wall.
IPC 1-7
IPC 8 full level
E01B 7/00 (2006.01); B61L 5/00 (2006.01); B61L 5/06 (2006.01); B61L 5/10 (2006.01); B61L 11/00 (2006.01)
CPC (source: EP US)
B61L 5/065 (2013.01 - EP US); B61L 5/10 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0289978 A1 19881109; EP 0289978 B1 19920916; AT E80586 T1 19921015; CA 1319744 C 19930629; CN 1013560 B 19910821; CN 88102584 A 19881116; DE 3874596 D1 19921022; DE 3874596 T2 19930218; ES 2035144 T3 19930416; FR 2614908 A1 19881110; FR 2614908 B1 19890616; GR 3006439 T3 19930621; JP H0741838 B2 19950510; JP S63304801 A 19881213; KR 970007956 B1 19970519; US 4842225 A 19890627
DOCDB simple family (application)
EP 88107025 A 19880502; AT 88107025 T 19880502; CA 565927 A 19880504; CN 88102584 A 19880505; DE 3874596 T 19880502; ES 88107025 T 19880502; FR 8706315 A 19870505; GR 920402803 T 19921202; JP 11031988 A 19880506; KR 880005171 A 19880504; US 18987388 A 19880503