Mobile anchoring and fall prevention device

Abstract

This device makes it possible to ensure the security of workers of any trade who operate from the inside of a building, on a wall, through a bay in the wall, while in the vicinity of empty spaces and without damaging the inner or outer existing structures (floor, wall, ceiling), characterized in that it comprises: According to the invention, the device comprises: a rigid structure ( 7, 10, 12 ) to be placed opposite the bay; two arms ( 15 ) connected to the upper part of the structure ( 7, 10, 12 ), intended to bear on the wall, above the bay and on either side thereof, and an anchoring point ( 16 ) integral with the structure ( 7, 10, 12 ), located at the upper portion thereof.

1 ) A mobile anchoring and fall prevention device to ensure the security of workers who operate from the inside of a building, on a wall, through a bay in the wall, while in the vicinity of empty spaces and without damaging an inner or an outer existing structures comprising:
 a post comprising a first elongated member and a second elongated member, one of these elongated members being telescopically engaged in the other elongated member;   a support plate adapted to bear against a floor of the building, the support plate connected to the end of the first elongated member that is opposite to the end facing the second elongated member;   a first adjusting device, for adjusting the position of the first and second elongated members relative to each other;   a mounting part attached to the end of the second elongated member opposite to that facing the first elongated member, the mounting part comprising two pairs of walls arranged in planes parallel to the longitudinal direction of the second elongated member, laterally projecting of the mounting part and being located at a same height from each other; the walls of a first of these two pairs of walls are parallel to each other and pierced with holes, forming a first articulation yoke, and the walls of the second of these two pairs of walls are also parallel to each other and pierced with holes, forming a second articulation yoke, the walls of the second pair being arranged at 90° with respect to the walls of the first pair; the mounting part includes an anchoring ring located on the side of the second elongated member on which are located the articulation yokes, and at the same height, or at the same height, than the latter;   two arms; one end of a first arm is intended to be fittingly engaged in the first articulation yoke and one end of the second arm is intended to be fittingly engaged in the second articulation yoke, each arm being retained in the corresponding articulation yoke by a pin engaged therethrough and through the walls of the articulation yoke; the arms to pivot between a folded position in which they extend along the first and second elongated members, and an unfolded position in which these arms extend perpendicular to the first and second elongated and perpendicular to each other; each arm includes, at its end opposite to that connected to the corresponding articulation yoke, a support plate adapted to bear against the wall of the building comprising the bay;   the first and second elongated members are adapted to be positioned with respect to each other so that, when the post is placed in front of the bay and bears on the floor and when the arms are in the unfolded position, the support plates of the arms bear against the wall of the building, up to the top of the bay or above the bay and on both sides of the bay, the anchoring ring being located at the top of the bay or above the bay.   
     
     
         2 ) The device according to  claim 1 , wherein:
 the mounting part is hollow and internally forms a conduit communicating with a conduit formed in the second elongated member, the conduits allowing the engagement in them of a third telescopic elongated member, the third elongated member comprising a support plate at its end opposite to that engaged in the conduits, adapted to bear against a ceiling which the building includes; and   the device comprises a second adjusting device, for adjusting the position of the third elongated member relative to the second elongated member.   
     
     
         3 ) The device according to  claim 1 , wherein the first and/or the second adjusting device comprise a system of holes provided in the first and the second elongated members and/or the second and third elongated members, and at least one key. 
     
     
         4 ) The device according to  claim 2 , further comprising:
 a device for making fine adjustments to the length of the post, optionally tightening, acting at the level of at least one end of the post, the adjustment device tight the support plates of the post against the floor and the ceiling, respectively.   
     
     
         5 ) The device according to  claim 1 , further comprising:
 at least one slider engaged on the second elongated member with the possibility of sliding;   two spacers each of which is pivotally connected to one of the arms and to the slider, and   a part secured on the second elongated member, forming a stop against which the slider abuts in the deployed position of the arm.   
     
     
         6 ) The device according to  claim 1 , wherein the two arms are, on the side opposite the post, connected to each other by a cable, which limits any possibility of separation of one arm in relation to the other. 
     
     
         7 ) The device according to  claim 6 , wherein the cable is connected at a central part to an elastic tightener facilitating folding of the arms in relation to the post. 
     
     
         8 ) The device according to  claim 1 , further comprising:
 a lower base on which is mounted the first elongated element, with the possibility of sliding in relation to this base,   a spring inserted between this base and this first elongated element,   a pedal mounted pivoting on the base, and   a rod connecting the pedal and the first elongated element.