A fall protection device for a user working on horizontal surfaces in construction sites, which can adopt two end positions: an operating protection position and a non-operating storage position. The device has a mast releasably couplable at the lower end to a fixed element of the construction with the possibility of pivoting on its own vertical shaft; an arm at a first end of an articulated joint articulated with the end of the upper portion of the mast, the second end thereof being free and the arm configured to receive in an area of the second end the coupling of fastening and attachment for the user; a strut with a first end articulately joined to the arm and with a second end to be fastened on a point of the upper portion of the mast under the end of the upper portion where the mast is articulated with the arm.

The invention relates to a device for preventing persons from falling, in particular from a roof, comprising a foot plate (10) which can be secured to an underlying surface and which comprises a stop point that can be attached to the foot plate, comprising either a post which projects upwards from the foot plate and which comprises an eyelet arranged in the upper end region of the post or an eyelet which can be introduced directly into the foot plate, in each case for attaching a cable by means of which the person is prevented from falling. According to the invention, a foot plate central region, in which the post or the eyelet is connected to the foot plate, is slotted around the post or the eyelet along at least one first defined circumferential slotted line (18a), which extends over at least approximately 270° in the circumferential direction, such that the central region is connected to the rest of the peripheral region of the foot plate (10) solely via narrow material webs (18b). In the event of a load, a type of joint is produced along the foot plate (10) sheet webs remaining between the slots, and the central region lying within the circumferential slotted line pivots together with the posts secured to the region upwards out of the plane of the footplate on the basis of the lifting force acting via the posts. The posts can thus lie flatly, and a torque is no longer acting on the peripheral region of the foot plate.

A mobile safety fall arrest cart is provided. The mobile safety fall arrest cart is configured to move along an edge of an elevated surface as a worker works along the edge. The worker is connected to the cart with a safety line. If the worker falls from the elevated surface, the weight of the worker causes a spike assembly to move from a stowed configuration to a deployed configuration. In the deployed configuration, a spike member engages the elevated surface so as to assist in arresting the worker's fall.

An energy absorber includes a monolithic length of ductile material comprising a first end and a second end. The material is formed to include at least a first longitudinally extending section that extends continuously between the ends, a first discontinuous section extending longitudinally from the first end toward the second end and at least a second discontinuous section extending longitudinally from the second end toward the first end. The first longitudinally extending section is deformed over at least a portion thereof out of a plane running through both ends. The first discontinuous section and the second discontinuous section are connected such that tensile force of a threshold magnitude is required between the ends to disconnect the first discontinuous section from the second discontinuous section, letting the first longitudinally extending section free to deform under tensile force and extend in longitudinal direction.

This invention relates to a safety line system for use by a person working at a height above the ground. In particular the invention relates to a support post for a safety line system. A support post assembly for supporting a fall safety line comprises a base; a support post to which a fall safety line is connectable, the support post having a longitudinal axis; cooperating curved bearing surfaces disposed between the base and the support post; and a detent assembly for preventing relative movement of the bearing surfaces below a threshold force, application of a force to the support post by the fall safety line above the threshold force causing the support post to pivot with respect to the base such that the bearing surfaces slide with respect to each other and friction between the bearing surfaces dissipates energy.

A wood anchoring device having a connecting ring defining a closed connecting aperture and at least two ties, at least two of the at least two ties having respective fastening holes at anchoring ends thereof. The device may be fastened to the thin side of a 2N piece of lumber through the fastening holes, wherein the at least two of the at least two ties are on the same side of the connecting ring relative to the axis of a test tensile load applied to the connecting ring in a direction perpendicular to the elongate axis of the piece of lumber. At least one of the ties has a length that is substantially different from a corresponding length of at least one other tie, the different lengths providing for responding to tensile loading by stretching differentially and thereby assisting in equalizing the forces applied to the fastening holes.

In at least one embodiment, a lifeline includes a wire rope and a shock absorber. In some embodiments, the shock absorber includes a tubular body defining a lumen therethrough. The tubular body defines a longitudinal axis including curvature along its length.

The invention relates to a device for preventing persons from falling, in particular from a roof, comprising a foot plate (10) which can be secured to an underlying surface and which comprises a stop point that can be attached to the foot plate, comprising either a post which projects upwards from the foot plate and which comprises an eyelet arranged in the upper end region of the post or an eyelet which can be introduced directly into the foot plate, in each case for attaching a cable by means of which the person is prevented from falling. According to the invention, a foot plate central region, in which the post or the eyelet is connected to the foot plate, is slotted around the post or the eyelet along at least one first defined circumferential slotted line (18a), which extends over at least approximately 270 in the circumferential direction, such that the central region is connected to the rest of the peripheral region of the foot plate (10) solely via narrow material webs (18b). In the event of a load, a type of joint is produced along the foot plate (10) sheet webs remaining between the slots, and the central region lying within the circumferential slotted line pivots together with the posts secured to the region upwards out of the plane of the footplate on the basis of the lifting force acting via the posts. The posts can thus lie flatly, and a torque is no longer acting on the peripheral region of the foot plate.

A post system for use in fall protection includes a connector to connect to a structure and a support in operative connection with a lifeline to maintain the lifeline at a first height above the structure. When a first threshold force is experienced on the lifeline, the support is operable to lower the lifeline to a second height which is lower than the first height. The ratio of a change in effective length of the lifeline resulting from the lowering of the lifeline to a change in height resulting from lowering of the lifeline (or the L/H ratio) is less than 1. The ratio of the change in effective length of the lifeline resulting from the lowering of the lifeline to the change in height resulting from lowering of the lifeline may also be less than 0.5 or less than 0.4.

An energy absorber includes a monolithic length of ductile material comprising a first end and a second end. The material is formed to include at least a first longitudinally extending section that extends continuously between the ends, a first discontinuous section extending longitudinally from the first end toward the second end and at least a second discontinuous section extending longitudinally from the second end toward the first end. The first longitudinally extending section is deformed over at least a portion thereof out of a plane running through both ends. The first discontinuous section and the second discontinuous section are connected such that tensile force of a threshold magnitude is required between the ends to disconnect the first discontinuous section from the second discontinuous section, letting the first longitudinally extending section free to deform under tensile force and extend in longitudinal direction.