LADDER Russian patent published in 2010 - IPC H02G1/00 

FIELD: transport.

SUBSTANCE: ladder represents installation site 1, suspension, attachment assembly 2, support links 4 and braces 5. Said site 1 consists of several frames jointed together by locking pins. Suspension represents "П"-like tube with its ends secured in lugs of site 1 and its horizontal part secured to attachment assembly 2 representing a clip, frame and support links 4. Strip stays in contact with clip pin while support links 4 are secured to the frame by rope loops and tips. Second ends of links 4 are secured via turnbuckle to vertical posts 21 and braces 22 of extreme frames of installation site 1. Turnbuckle has guard 23 made up of ropes secured on line tower posts. Total force in braces 5 are set to make not over 700 kg, while inclination relative to vertical is selected to vary from 0° to 15°.

EFFECT: simple design and ease of production and mounting, reduced costs and higher safety.

7 cl, 6 dwg