| 摘要 |
Ladder stabilizers for lateral attachment to an extension ladder for inhibiting sideways slipping and falling thereof accordingly to full safety. Both sides of a ladder are attached to the side rail a long tube support made from nonrusting metal and connected approximately in its middle with a non-articulated bracing forming an A frame with the ladder. The lock for the telescoping sections visibly indicates they are locked, this as per American National Standard ANSI A14.21990, par. 6.7.10, the installation being fully secured because of the technically safe locking device the telescopic tube is blocked with a spring pin. Ladder stabilizers are telescopic tubes for uneven ground and are pivotable along only the same surface of the ladder, thus enlarging the sustension polygone for ladder support. For storage position, horizontal braces are detached and rotate on a metal attachement on the side rail of the ladder to become parallel with the ladder, the telescopic tubes are also in the same position and are firmly tied with a tension hook. This ladder stabilizer is to be added to any existing ladder extensible or non-extensible.
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