Patent ID: 9648772
Date: 2017-05-09
CPC Classifications: B61L,H05K

Claim:
1. Control peripheral post of railway field devices, comprising: at least one row of control modules comprising a plurality of control modules operatively connected or connectable by electric cables to field devices; a support frame having a front side and housing said row of control modules; wherein said support frame comprises at least one anti-extraction bar positioned on the front side of the support frame, said bar being adapted to selectively take an extraction configuration, wherein said bar is positioned in such a way as to permit the extraction of the control modules of said row from the front side of the support frame, and a blocking configuration, wherein said bar is positioned in front of said row of control modules so as to prevent the extraction of the control modules of said row from the front side of the support frame; the anti-extraction bar being mounted pivotally hinged so as to be able to rotate about a fixed and predetermined axis of rotation; wherein the support frame comprises blocking elements provided for selectively blocking said anti-extraction bar in the extraction and blocking configurations; wherein said anti-extraction bar comprises two opposite end portions and wherein said blocking elements are associated to at least one of said two opposite end portions; wherein said blocking elements comprise a blocking slot and a blocking pin of variable thickness which is slidably mounted to one of said opposite end portions of said anti-extraction bar, the blocking in comprising a portion of pin with a relatively greater cross-section and a portion of pin with a relatively lesser cross-section, the blocking slot comprising a central sliding portion and a pair of end portions widened in relation to the central sliding portion, wherein the central sliding portion is adapted to co-operate with said portion of a lesser cross-section of the blocking in to permit the sliding of said pin during a shift of said anti-extraction bar and wherein said widened end portions are adapted to cooperate with said portion of a greater cross-section of the blocking pin to block the anti-extraction bar in said extraction and blocking configurations.