摘要:
Fall arrester (1) for a cable holding device (2) which can be installed without a roof penetration, which cable holding device has at least one post (2a), wherein the fall arrester (1) has multiple layers at least in one section of the fall arrester and a post stabiliser (4) and/or a post anchorage (5) is integrated into the multi-layer section (3), wherein the post stabiliser (4) and/or the post anchorage (5) has multiple layers at least in one section thereof, and wherein the multi-layer section (3) of the fall arrester (1) has at least one layer (3a) made of composite material reinforced with glass fibers and/or with carbon fibers (FRP layer), and said FRP layer (3a) also forms a layer of the multi-layer post stabiliser (4) and/or of the multi-layer post anchorage (5). Furthermore, an at least partially multi-layer post stabiliser (4) which comprises at least one layer (3a) made of a composite material (FRP layer) which is reinforced by glass fibers and/or by carbon fibers and a fall protection device which is constructed of several cable holding devices and a fall protection system constructed of several fall protection devices respectively.
摘要:
An anchor assembly includes a base to which at least one connector and three legs are operatively connected. The connector provides an anchorage point for connection to a lifeline. The legs are secured to a support structure. The legs are reinforced proximate the base and when a force is exerted on the at least one connector by the lifeline, the legs bend proximate the support structure thus placing a shear load on the legs proximate the support structure.
摘要:
The present invention provides a device for lowering a weight from a structure, the device comprising: a first elongate element (10) that is secured via a fixing (16) to a stable structure, for example the structure from which a weight is to be lowered; a second elongate member (12) that extends parallel to the first member (10) and is joined thereto by a series of equally-spaced links or links (14), thereby giving the appearance of a ladder. A weight to be lowered is secured to the top of the second member (12) by a connection, which could be a clamp onto which a harness is secured; alternatively, the harness could be made integral with the second elongate member (12). The links (14) are made of a ductile polymer material and the links successively stretch and fail, thereby lowering the weight controllably. The invention also finds application as an energy absorbing element, which uses the same method to safely control and cease a motion, such as a person's fall.
摘要:
An energy absorber including a strap including at least a first path of relatively reduced strength extending over at least a portion of the length of the strap. The energy absorber also includes at least a first transition region including a first initial point where tearing begins along the first transition region when a force above a threshold force is applied (to the energy absorber/strap) and a first end point. The first end point is in operative connection with a first point on the first path so that tearing continues along the first path after tearing along the first transition region. A gradual increase in load occurring as tearing occurs along the transition region.
摘要:
An energy absorber comprises a helically coiled stores of at least partially yielding material that is drawn over a roller, or two rollers on perpendicular rotational axes, and securely fixed to a base that is attached to fragile structure such as a roof so that when an external force of sufficient size is applied to the roller or rollers through a connecting attachment eye the coil together with roller or rollers moves away from the attachment to the base whilst the coiled material is deployed over the roller or rollers. The absorber may be housed in a casing that is fixed to the base such that the strength of the fixing to the base is sufficient to withstand a predetermined load after which the fixing fails and the housing moves with the coiled store providing protection for both the coiled store and fragile structure.
摘要:
A safety device for a fall restraint includes an anchoring member (1) to which the fall restraint can be coupled directly or indirectly, and a fastening element for a firm and durable connection to an object (10). The fastening element is formed by a flexible fastening flap (11) which extends laterally from the device and which is intended and adapted to bring about the firm and durable connection to the object.
摘要:
The invention relates to An anchoring device that is intended for, for example, the roof of a building. The inventive device comprises: a base which is used to fix to roofing; a hook element which is mounted to the base at one end thereof and which comprises a hook ring at the other end; a tilting mechanism which, in the event of an impact, enables the hook element to tilt in a normal plane in relation to the plane of extension of the base; a damping mechanism which is used to absorb energy during the tilting of the hook element. The damping mechanism comprises a trigger mechanism that can be used to prevent the hook element from tilting when the element is subjected to a force having an intensity that is lower than a pre-determined threshold. The aforementioned trigger mechanism comprises a removable part which is different from the other elements making up the damping mechanism.
摘要:
A safety device for the building field, for individually protecting against falls workers assigned to walking at high elevations in buildings under construction. The device comprises at least one pole, a detachable connection for the pole base with the surface of a building, the pole having at its top end, an engagement for a cable element forming a safety parapet, at least one leg connected laterally to rest, with its lower end, on the surface of the building, laterally to the region engaged by the base of the pole, to form, for the pole, an auxiliary resting element for pushing against the surface of the building.
摘要:
A safety device for the building field, for individually protecting against falls workers assigned to walking at high elevations in buildings under construction. The device comprises at least one pole, a detachable connection for the pole base with the surface of a building, the pole having at its top end, an engagement for a cable element forming a safety parapet, at least one leg connected laterally to rest, with its lower end, on the surface of the building, laterally to the region engaged by the base of the pole, to form, for the pole, an auxiliary resting element for pushing against the surface of the building.
摘要:
A rope safety device (10,10-1) installed as a sub-roof element on a roof (T), a covering or a similar structure, comprising: a fixing and damping plate (11), perforated, fixed to the roof structure (T): and a rope (12) associated with the fixing and damping plate, wherein the rope (12) has an attachment portion (12a), in the form of an eyelet (12′), via which an operator can attach to the rope (12), so as to operate in a safe condition on the roof on which the device is installed: wherein the plate (11) has a configuration with one or more holes (13, 13b) used to insert the rope (12) and wherein the rope (12) is configured and set with respect to the plate, in whose holes (13b) is inserted, in such a way that the rope (12), when it is subject by the operator, attached to the same rope, to a given traction force (FT), slides (f) along a certain stroke (D) in the holes (13b) of the fixing and damping plate (11) before being retained by the latter. in a further embodiment (10-2), suitable for application in combination with a rope safety line (LS) or life line system, the safety device to the rope (10) can comprise, as an alternative to the plate perforated, a calibrated damp (16), associated with the rope (12) and defining an eyelet (12e) for coupling the device (10, 10-2) to the rope (F) the safety-line, in which the terminal (16) the cable (12) flows (f′) in a controlled way when it is subject, on the part of an operator attached to the same rope (12), to a traction force (FT). Advantageously the device rope safety slide (10, 10-1, 10, 10-2) of the invention, installed on a roof (T) or similar structure, is adapted to dampen and absorb effectively the impact and the stress suffered by an operator, when, being attached to the rope (12) of the device (10) to operate in conditions of safety on the roof (T), accidentally puts into traction and pulls the cable (12) The invention also concerns an innovative guardrail (20) having a metal structure (21) substantially identical to that of a conventional guard rail, and a rope device (22) which is associated with a containment rail (21b) of the metal structure (21) of the guard rail (20) and whose rope (12) is subject to a controlled sliding or slipping when a vehicle skids and hits the guard rail (20), so as to efficaciously absorb and dissipate the impact energy caused by such a collision.