Cable safety system
a safety system and cable technology, applied in the field of high-speed barriers and safety systems, can solve the problems of increasing the risk of the vehicle running over the cable, being exposed to the hazards, and many cable safety systems, so as to reduce the risk of injury, and reduce the tension
Inactive Publication Date: 2005-12-29
TRINITY IND INC
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- Application Information
AI Technical Summary
Benefits of technology
This approach minimizes cable deflection, reduces installation time and costs, and enhances safety by maintaining cable engagement, reducing the need for frequent re-tensioning, and eliminating sharp edges, while allowing for more predictable interactions during impacts.
Problems solved by technology
One recognized limitation of many cable safety systems is excessive deflection of associated cables during a vehicle impact.
Large deflection during a vehicle impact also increases the risk of the vehicle running over the cables and being exposed to the hazard which required installation of the cable safety system.
Calculating performance of many cable safety systems is often difficult due to unpredictable interactions between associated posts and cables during a vehicle impact.
Cable release from post often causes much larger deflections than expected or calculated.
However, shorter spacing between posts affects total cost of a cable safety system, not only material, but also installation time and cost.
Method used
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[0032] Preferred embodiments of the invention and its advantages are best understood by reference to FIGS. 1a-11 wherein like reference numbers indicate like features.
[0033] The terms “safety system” or “safety systems” and “barrier” or “barriers” may be used throughout this application to include any type of safety system and / or barrier which may be formed at least in part using cables and support posts incorporating teachings of the present invention. The term “roadway” may be used throughout this application to include any highway, roadway or path satisfactory for vehicle traffic. Safety systems and barriers incorporating teachings of the present invention may be installed in median strips or along shoulders of highways, roadways or any other path which is likely to encounter vehicular traffic.
[0034] Various aspects of the present invention will be described with respect to cable safety systems 20 and 20a. However, teachings of the present invention may be used to form a wide v...
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A safety system including cables and support posts is provided. The safety system may be used to prevent vehicles from impacting with an associated roadside hazard. The safety system will typically maintain engagement between associated cables and support posts for a longer period of time as the posts are bent during a vehicle impact.
Description
RELATED APPLICATION [0001] This application is a continuation of application Ser. No. 10 / 442,597 filed May 21, 2003, and entitled “Cable Safety System,” which claims the benefit of provisional application Ser. No. 60 / 383,653 filed May 28, 2002.TECHNICAL FIELD [0002] The present invention is related to highway barriers and safety systems and more particularly to cable safety systems and associated posts. BACKGROUND OF THE INVENTION [0003] Cable safety systems and cable barriers have been installed along edges of roadways and highways for many years. Cable safety systems and cable barriers have also been installed along medians between roadways and / or highways. Cable safety systems generally include one or more horizontal cables attached to support posts. For some applications cable safety systems and cable barriers may reduce damage to an impacting vehicle and / or injury to occupants of the impacting vehicle as compared with other types of highway safety systems and highway barriers. ...
Claims
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IPC IPC(8): E01F15/06
CPCE01F15/06
Inventor BERGENDAHL, PETER
Owner TRINITY IND INC