FR2958552A1 - Deadman hooking point i.e. dismountable and remountable dead-man hooking point, for fixing person in antifall safety system during working in height, has heavy elements that are placed on arm in periphery of fixing plate - Google Patents

Abstract

The point (1) has a central fixing plate (2) and a set of heavy elements (4) i.e. concrete weights, placed in a periphery of the fixing plate. The fixing plate comprises a flat horizontal base (5) within center a fixing support (6) and three vertical wings (7) with its periphery, where each wing comprises an opening (8) for passage of an arm (3) detached by the wing. The arm is passed through the opening. The heavy elements are placed on the arms in the periphery of the plate, where the plate and arms are made of metal.

Description

The present invention relates to a dead anchor anchor transportable, without attachment to a frame, for fall protection system. It has applications in the field of personal safety. For safety reasons, persons working at height must be provided with fall protection systems. In general these people are equipped with a safety harness that is hooked to a lifeline. This lifeline must be fixed / anchored in a manner resistant to points of clashes, for example points of attachment of a frame on which the person works. The term built in practice covers any material structure on which a person can be brought to move and / or work and not just a roof or a terrace. However, many roof terraces have insulation, sealing and protection coatings that are not made to receive significant loads and, even less, to be pierced by points of attachment lifelines fixed on the construction. . In addition, this work at height can be an exceptional intervention over time, which may explain the absence of available attachment point permanently installed on the construction.

It is therefore desirable to have an anchoring means without fixing to the roof or the floor of the terrace and which is adapted to these constraints. This anchoring means is a dead body anchor point according to BS EN 795 class E. This dead body anchor point has a significant weight, more than 300 kg, and a structure such as its surface ground support with regard to the parameter of coefficient of friction, that it makes it possible to block the fall of a person and does not tilt. It is proposed a dead body anchor point which is transportable by at least one person because it can be disassembled into a set of pieces of relatively small unit weights, preferably less than 25 kg each, which parts are perfectly transportable and manipulable by a person. This anchor dead body is removable and can be remounted and can both have a mobile use stationary, installed once and for all at a given location. In addition, it uses relatively low-cost materials such as concrete and comprises means for easily and efficiently joining the parts that are assembled together during reassembly. This anchor anchor can be used to provide fall protection for at least one person.

The invention thus relates to an anchoring point of dead body without attachment to a frame for attaching at least one person in a fall protection system, said dead body anchor point comprising a central attachment plate and a set of heavy elements at the periphery, said dead body anchor point being dismountable and reassemblable and each of the parts of said dismounted dead body anchor being of a weight such that it can be transported, handled and reassembled by a person without tools particular. According to the invention, the central plate comprises a base with a hooking support at its center and at its periphery at least three vertical wings, each of the wings having an arm-opening opening, the dead-body anchoring point comprising in addition to a removable arm platinum wing, the arms being passed through the arm passage openings, the heavy elements being placed in abutment on the arms at the periphery of the central plate.

More specifically, the central plate comprises a substantially flat horizontal base with in its center a vertical central hanging bracket extended upwards and at its periphery at least three vertical wings angularly distributed on said periphery and extended upwards, each of the wings having internally an arm passage opening extending down to the base level, the dead body anchor point further comprising an arm per platinum wing, each arm being an elongate shaft and having at its end outside the periphery of the anchoring point dead body a vertical leg extended upwards, and the plate further comprises at least one arm locking means and the hooking support has on the base of the plate an end receptacle Inner arm by arm axis, each arm, along an arm axis, passed through an opening of arm that can come to rest flat on the upper face of the base of the plate when the arm locking means locks the arm on the plate and the inner end of the arm is in the receptacle, the heavy elements being placed in abutment on the arms on the periphery of the plate central between the platinum wings and arm tabs, the heavy elements of each arm being arranged against each other and the heavy elements of ends of each arm being locked respectively inwardly by the corresponding wing and towards the periphery by the corresponding paw. In various embodiments of the invention, the following means can be used alone or in any technically possible combination, are employed: the wings are advantageously equiangularly distributed over the periphery of the central plate, and the flat rods - the arm locking means of the plate is intended at least to ensure that the inner end of the arm is inserted into the receptacle and to prevent translation of the arm relative to the platen, - the arm locking means of the plate is at least one upright vertical pin disposed on the base along each of the arm axes joining each wing to the center of the plate and each arm has a pin hole for receiving each pin of a pin. arm axis, - the pawn (s) is (are) in the plane of the wing arm opening, - the pawn (s) are (are) between the arm wing and the inner end receptacle 20 arm of the support arm, - the pawn is a vertical cylinder, - the pawn is a vertical flat paw, - each platinum wing has at its upper end a horizontal wing return extended to the outside of the plate , said wing return bearing on the upper face of the adjacent weighing element, the heavy elements are identical and each have on their lower face resting on the ground a hollow arm channel, open downwards, said channel of arms receiving the arm on which the heavy element is placed, the height of the element weighing between its lower face and its upper face on which 30 supports the wing return being greater than the height of the plate between its base and the wing return so that when the heavy element is placed on the arm against the wing and under the corresponding wing return, (thus the innermost weighing element along an arm) platinum is raised and its base is found at a distance from the ground, 35 - the opening of the arm passage is closed on all its edges, - the opening of the arm passage is open upwards, - the opening of the arm passage is open laterally of a only side, - the arm hole and platinum pin are reversed, the pin being on the arm, extended downward, and the pin hole being through the base of the platen, - the platen is in metal, - the arm is made of metal, - the mounting bracket is made of metal, 10 - the metal is steel, - the plate and the arms are at least 4 mm thick, - the plate and the arms are made from a metal plate, - the plate and the arm are made with a stamping step, - the pins are welded to the plate, 15 - the hooking support is welded to the center of the base platinum, - the welds are made on the underside of the bottom of the platen, - the hanging bracket is a substantially cubic piece com carrying at its upper part a fixing means allowing the installation of a hooking means to a person, and to its lower part the receptacles for the inner ends of the corresponding arms, - the hooking support is an element constituted of metal parts welded together, 25 - the attachment support is an element consisting of a metal part initially flat, stamped, cross-shaped and folded on itself, - the attachment means is connected to a lanyard, - the hooking means comprises a damping device, 30 - each arm flap comprises at its upper end a horizontal return extended towards the inside of the anchoring point dead body, said foot referral bearing on the upper face of the adjacent heavy element, - the height of the platinum wing is substantially equal to the height of the arm flap, (to the thickness of the parts near) - the receptacle has edges side and an upper edge and a lower edge, the lower edge corresponding to the upper face of the base of the plate, the passage space of the arm between said edges substantially corresponding to the cross section of said arm so that the movements of said arm in the receptacle is limited, - the lateral edges of the receptacle are more fitted to the width of the arm than the upper edge relative to the base to allow a possibility of tilting of the arm in the vertical plane during assembly or disassembly of the point d anchoring dead body, in particular to allow the coupling / uncoupling of the pawn (s) and orifice (s), - the arm and the heavy elements are configured to allow side by side at least four heavy elements on the arm between the platinum wing and the arm flap, the arm and the heavy elements are configured to allow four heavy elements to be arranged side by side. the arm between the platinum wing and the arm paw, - the arm and the heavy elements are configured to allow a single layer of heavy elements to be placed side by side on the arm between the platinum wing and the paw of arm, 20 - the central plate comprises four wings arranged equiangularly at 90 ° one of the following, - the periphery of the plate is substantially octagonal, - each part of said dead body anchor point removed weighs less than 25 kg, The dead body anchoring point comprises a pin and a pin hole per arm axis, the heavy elements comprise gripping handles, the gripping handles of the heavy elements are arranged on the underside of said heavy elements and are accessible laterally, 30 - each heavy element has two side handles, - the heavy elements are weights in concrete and the plate and arms are metal, - the heavy elements are my oblocs, - the heavy elements are in two parts joined together by bolting, a lower part and an upper part, - the concrete of the heavy elements has a density greater than 2.5, - the concrete of the heavy elements has a density of about 4, - each element weighing at a weight of about 22 Kg, - the upper face of the heavy element has relief patterns, - the relief patterns of the upper face of the heavy element are textual indications of the weight type, product reference, use instruction (eg "high") and / or trade mark, - the part of the underside of the heavy element which rests on the ground is substantially smooth, - the element weight is radiated on the edges: the edges are rounded, - the part of the lower face of the heavy element which rests on the ground is substantially smooth and radiated on the edges, - the part of the lower face of the heavy elementwhich is based on the ground comprises patterns in relief, - the relief patterns of the lower face of the heavy element are indentations intended to increase the coefficient of friction of the element weighing on the ground, - the part of the the underside of the heavy element which rests on the ground comprises a coating of elastomeric or rubbery material intended to increase the coefficient of friction of the heavy element, the coating of elastomeric or rubbery material is smooth, the coating of material The elastomeric or rubbery element is indented, each heavy element comprises on its upper surface a raised key intended to fit into a corresponding hollow recess in the lower face of an adjacent weighing element in the case of a stack for storing heavy elements, the footprint of the underside sharing its hollow with that of the arm channel. The present invention, without being thereby limited, will now be exemplified with the following description of embodiments and implementations in connection with: FIG. 1 which is a diagrammatic perspective view of a dead body anchor point, a single arm and a single weight element being installed, Figure 2 which represents the dead body anchor point of Figure 1 but in a side perspective view, Figures 3 and 4 which represent the point dead body anchor of Figure 1 with progressive installation of the heavy elements on one of the arms.

The dead body anchor point 1 of the example now described with the arms in cross: the central plate 2 is configured to receive four arms 3 arranged at 90 ° one of the following. The plate 2 comprises a substantially planar base 5 which has an octagonal periphery with four vertical flanges 7 opposite two to two with respect to the center of the plate, on which center is fixed a vertical central hanging support 6 extended upwards. The attachment support 6 comprises at its upper part a fixing hole to allow to connect to a lifeline or means of connection to a user. On each of the lateral faces of the hooking support 6, in front of a corresponding flange 7, there is provided a receptacle 17 of the inner end of the arm (inner as the end of the arm is directed towards the inside of the anchoring point of the dead body). ) just above the base 5. Each of the wings 7 has an opening 8 for arm passage through which an arm 3 can be passed. The opening 8 of arm passage descends to the level of the base 5 and is closed at least down at the base and laterally on each side. Each wing 7 has at its upper end a horizontal wing 9 extended towards the outside of the plate. The wing return 9 bears on the upper face of the weighing element 4 adjacent. The arm 3 shown is passed through the arm-opening opening 8 of the corresponding wing 7 so that the inner end (towards the center of the anchor point of the dead body) of the arm enters the corresponding receptacle 17 at the base of the hooking support on the base of the plate and that the pin opening 11 of said arm 3 receives the corresponding pin 10 of the base 5 of the plate 2. Each arm, along an arm axis , passed through an opening arm passage can come lay flat on the upper face of the base of the plate when the pin is in the pin hole and the inner end of the arm in the receptacle 17 of the hooking bracket . The hooking support 6 is a complex element (because in this example resulting from the assembly of several elements) reported and fixed by welding in the center of the base of the plate, welds preferably made from below the base. The pins are inserts welded from below the base. Each receptacle 17 is laterally bordered by posts and, preferably, the width between the posts is adjusted to the width of the arm to have a reduced lateral play of the arm. It is the same for the width of the opening 8 of arm passage of each wing 7. It is indeed preferable to avoid excessive lateral play between the plate and the arms, a game which must however be sufficient to allow easy assembly / disassembly of the anchor point. Preferably, the height of the receptacle is a little greater than the thickness of the arm because there must be a possibility of tilting up the arm during installation to pass the arm on the piece until the latter can insert into the pawn opening of the arm.

The outer end (outer end arm end facing outward of the dead body anchor point) of each arm 3 has an arm lug 12 extended upwardly and having at its upper end a horizontal reference 13 extended to the the interior of the anchoring point dead body, said foot referral being intended to bear on the upper face of the adjacent weighing element. The heavy elements 4 are high density concrete parts each weighing about 22 Kg and resulting from a two-part assembly together by bolting. It is here implemented in this type of anchoring point dead body four times four heavy elements: four arms and four heavy elements per arm in a single layer on each arm. The upper face of the heavy elements 4 comprises a key 16 in relief intended to fit into a recessed recess of the lower face of an adjacent weighing element in the case of a stack of the heavy elements in case of storage of the disassembled device. . The footprint of the underside shares its hollow with that of the arm channel. Each heavy element comprises laterally, preferably on each side, a gripping means 14 for facilitating its transport. Indications are molded on at least the upper face, which is visible, heavy elements.

Due to the respective dimensions and structures of the dead body anchor parts, each arm 3 in place is applied flat on the base of the platen. In particular, the heavy elements each have on their lower face resting on the ground a channel 15 of recessed arm in which the arm on which it is placed can pass. In addition, the height of the flanges 7 is less than the height of the heavy elements (between the lower face resting on the ground and the upper face portion on which the wing return 9 is supported). It follows that the base 5 initially placed on the ground is raised from the ground when the heavy elements 4 are installed on the arms as can be seen in Figure 2 where we see that the base 5 of the plate 2 is higher than the lower face of the weighing element 4. Thus, the dead body anchor point is configured so that the plate is lifted from the ground when mounting the anchoring point dead body. In Figures 3 and 4 of the heavy elements are installed progressively on one of the arms of the anchoring point dead body. A first weighing element 4 is installed on the central platinum side 2 against the corresponding wing of the latter so that the base of the central plate is raised from the ground. The element weighing central platinum side, against the wing, is caught between the wing 9 and the arm 3. Then the other three heavy elements are placed on the arm in such a way that the heavy element of end intended to come against the tab arm 12 having at its upper end a horizontal reference 13 of the arm tab, can be installed. The element weighing on the periphery of the dead body anchor point, against the lug 12, is thus caught between the lug return 13 and the arm 3. One of the two central heavy elements of an arm is thus placed last and, for example, the outermost one with respect to the center of the anchor point dead body. In this example, four heavy elements per arm are used. Naturally, the present invention is not limited to the particular embodiments which have just been described, but extends to all variants and equivalents in accordance with its spirit. Thus, it is clear that the invention can be declined according to many other possibilities without departing from the scope defined by the description and the claims. Thus, if in the embodiment, because the arm passage opening is closed laterally, the arm is placed on the central plate by radial movement / sliding towards the center of the plate. In a variant, the arm passage opening may comprise a lateral opening of reduced height (a little higher than the thickness of the arm) allowing a (also) lateral installation of said bottom by rotation, lateral opening which may be towards the top of the arm passage opening (a downward tilt will be required) or which can be at the base (a rotation in a horizontal plane is enough, the pawn close).

Claims (10)

REVENDICATIONS1. Mortise anchorage point (1) without attachment to a frame for attaching at least one person in a fall protection system, said dead body anchor point comprising a central attachment plate (2) and a set of heavy elements (4) at the periphery, said dead body anchor point being dismountable and reassemblable and each of the parts of said disemboweled anchor point being of a weight such that it can be transported, manipulated and reassembled by a person without special tools, characterized in that the central plate (2) comprises a base (5) with at its center a hooking support (6) and at its periphery at least three vertical wings (7), each of the wings comprising an opening (8) for the passage of arms, the dead-body anchor point further comprising a removable arm (3) per platinum wing, the arms being passed through the arm-opening openings, the heavy elements being placed in abutment; on the arms in peril hero of the central platinum. 2. anchoring point dead body according to claim 1, characterized in that the central plate (2) comprises a substantially planar horizontal base (5) with in its center a vertical central hanging bracket (6) extended upwardly and, at its periphery, at least three vertical wings (7) distributed angularly over said periphery and extended upwards, each of the wings internally having an opening (8) for arm passage extending down to the level of the base, the dead body anchor point further comprising an arm (3) removable by wing (7) platinum (2), each arm being an elongate rod and having at its outer end side periphery of the anchor point body a vertical leg (12) extended upwards, and in that the plate (2) further comprises at least one arm locking means, and in that the hooking support (6) comprises on the basis of the plate an inner end receptacle (17) re arm by arm axis (3), each arm (3), along an arm axis, passed through an opening arm passage can come to rest on the upper face of the base of the plate when the means locking the arm on the plate and the inner end of the arm is in the receptacle, the heavy elements being placed in abutment on the arms at the periphery of the central plate between the platinum wings and arm tabs, the heavy elements ( 4) of each arm being arranged against each other and the heavy elements of ends of each arm being locked respectively inwardly by the corresponding wing and towards the periphery by the corresponding tab. 3. dead body anchor point according to claim 1 or 2, characterized in that each flange (7) platinum has at its upper end a return (9) of horizontal flange extended outwardly of the plate, said wing return bearing on the upper face of the adjacent weight element, the heavy elements are identical and each have on their lower face resting on the ground a channel (15) of hollow arm, open downwards, said channel of arms receiving the arm on which the heavy element is placed, the height of the element weighing between its lower face and its upper face on which the wing return is greater than the height of the plate between its base and the wing return so that when the heavy element is placed on the arm against the wing and under the corresponding wing return, the plate is raised and its base is found at a distance from the ground. 4. dead body anchor point according to claim 1, 2 or 3, characterized in that each arm flap comprises at its upper end a horizontal return extended towards the interior of the anchoring point dead body, said foot removal (13) bearing on the upper face of the adjacent weighing element. Dead body anchoring point according to any one of the preceding claims, characterized in that the arm and the heavy elements are configured to allow at least four heavy elements to be arranged side by side on the arm between the platinum wing. and the arm paw. 6. An anchoring point dead body according to any one of the preceding claims, characterized in that the central plate comprises four wings arranged equiangularly at 90 ° one of the next. 7. dead body anchor point according to any one of the preceding claims, characterized in that each of said dismounted dead body anchor weighs less than 25 kg. Mortar anchoring point according to one of the preceding claims, characterized in that the arm locking means of the plate is at least one upwardly extending vertical pin (10) arranged on the base along the each of the arm axes joining each wing to the center of the plate and each arm has a pin hole (11) for receiving each pin of an arm axis. Dead body anchor point according to any one of the preceding claims, characterized in that the heavy elements are concrete weights and the plate and the arms are made of metal. Dead body anchoring point according to any one of the preceding claims, characterized in that each heavy element comprises on its upper face a raised key intended to come into a corresponding hollow recess of the lower face of a adjacent weighing element in the case of a stack for storing the heavy elements, the footprint of the lower face sharing its hollow with that of the arm channel.