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Scaffolding fall protection system

a technology of fall protection and scaffolding, which is applied in the direction of scaffold accessories, building scaffolds, cleaning equipment, etc., can solve the problems of increased hazards, decreased time that the worker must spend, and difficulty in working on the scaffold system. , to achieve the effect of saving time for cable placement, safe connection and quick and easy attachmen

Inactive Publication Date: 2009-01-22
NORTHLAND CONCRETE & MASONRY COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011]The fall protection system includes cable supports, including end cable supports forming a short tube type member through which the safety cable passes. The intermediate cable supports include guide rings interacting to retain the safety cable, but which do not form a continuous closed ring around the cable. The guide rings are spaced apart arcing elements, with radially overlapping profiles so that the safety cable is retained. However, the opening between the guides allows for the arrest system to slide along the cable and pass between the guide ring elements without detachment from the cable. This configuration allows a worker to slide line clips of the arrest system along the safety cable without having to be detached from the safety system.
[0016]The safety cable is quickly and easily attached by forming a loop with two cable clamps or similar devices at each end and securing a loop around a portion of the scaffolding frame to provide a secure anchor at each end. The cable must be threaded through the tube portion of the end safety cable supports. However, the guide rings allow for simply angling the cable clips to pass under both ends of the guide ring elements and be centered in the guide rings. This configuration saves time for cable placement and still retains the cable in a safe manner. The other end of the cable is passed through the tube portion of the second end attachment and is also secured to the scaffolding frame by forming a loop with the cable and passing it around a frame member.

Problems solved by technology

Moreover, scaffolding that is used outdoors may require an enclosure when weather makes working on a scaffold system difficult and potentially dangerous if there is not some protection from the elements.
Such an arrangement decreases the amount of time that the worker must spend detaching and reattaching the lifeline.
Gaps, such as openings for doors in a masonry wall being constructed, present additional hazards as the safety of the wall is removed and workers may fall through these gaps.
However, it is not always possible to use such extensions and gaps of up to three feet may exist.
Moreover, erecting a railing on the inner portion of scaffolding to provide protection at these gaps may be impossible or impractical and / or may not work with all types of scaffolding and fall protection systems.
Similar design issues may arise at edges of buildings.
Although the prior art shows many barrier type systems, it can be appreciated that such systems do not provide for anchoring a lifeline allowing the lifeline to slide, providing freedom of movement for the workers while maintaining worker safety at a high level that meets the relevant standards in scaffold systems.
Further difficulties arise in providing a safe working environment when the scaffold system must be enclosed.

Method used

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  • Scaffolding fall protection system
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Experimental program
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Embodiment Construction

[0031]Referring now to the Figures and in particular FIGS. 1-4, there is shown a scaffold system, generally designated 20. Scaffolding is a portable system that is assembled and disassembled on site with various standardized frame members attaching to one another to create a rigid scaffold structure. The scaffold system 20 includes a frame 22 supporting one or more platforms 24. The scaffold system frame 22 and platform 24 may take on a generally conventional configuration. As shown in FIGS. 5-7, in some embodiments, the scaffold system 20 may include a cover 70 such as a tarp or other protective material. The scaffold system 20 has various uses and typically is placed next to a wall or structure that is being constructed or on which maintenance is being performed. The scaffold system 20 may have multiple floor, or levels, of platforms 24 so that work may be performed simultaneously at different heights and provide access to the structure at various locations.

[0032]The scaffold syst...

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PUM

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Abstract

A scaffold system includes a scaffold frame, supporting one or more platforms. The scaffold system includes a fall protection system including a safety cable supported above the platform by safety cable supports. End supports include an enclosed end attachment while intermediate supports have guide rings that retain the cable but allow for insertion without threading the cable through the rings. Each worker is attached to the safety cable which can slide along the cable and between the guide rings of the intermediate safety cable supports. The workers arrest system generally includes a harness and a deceleration device. The cable supports are removably mounted to the frame with pin type connectors. A cover may be used for some applications and inclement weather with the safety cable supports passing through a seam in the cover or with the cover extending above and over the fall protection system.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention is directed to a fall protection system for scaffolding and to covered scaffolding with a fall protection system.[0003]2. Description of the Prior Art[0004]Portable scaffold systems are well know and used widely in the construction and maintenance industries, providing elevated access for workers to walls, buildings and other structures. The particular configuration of the scaffolding varies depending upon the use with different heights, widths and sizes to match the particular structure that is worked on. Moreover, scaffolding that is used outdoors may require an enclosure when weather makes working on a scaffold system difficult and potentially dangerous if there is not some protection from the elements.[0005]As a safety precaution, a safety railing or other barrier should extend above and along the platform. Although such barriers are helpful, working conditions and regulations often also mandat...

Claims

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Application Information

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IPC IPC(8): E04G5/14
CPCE04G5/00E04G5/14E04G5/12E04G5/001E04G2005/125
Inventor INGALLS, ROBERT V.
Owner NORTHLAND CONCRETE & MASONRY COMPANY