| 摘要 |
According to OSHA, ladder falls account for over twenty thousand workplace injuries and as many as 36 deaths per year. Many people who use ladders in the home for painting, changing light bulbs, etc . . . describe feeling unbalanced, wobbly, and nervous, especially when standing on A-frame ladders. Many ladder falls occur simply because the user loses his balance on the higher steps. Adding a sturdy grip or rail to the ladder would help users maintain their balance. Users prone to vertigo or unbalance may derive more security from the existence of the safety grip. The invention comprises a sturdy bar attached to the frame of a ladder and extendable above the top of the ladder. The bar is extendable by means of two hollow tubes attached firmly to the frame of the ladder, through which both ends of the bar can slide. A locking mechanism enables the safety bar to be extendable to different heights above the ladder. The safety bar is made of a sturdy material such as metal, plastic, wood, or strong aluminum. This safety attachment can be adapted to all existing ladders currently in use.
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