Folded ladders LSS by properties and purpose correspond to attached ladders and symmetric stepladders and consist of two parts that are connected by the rotary knot-holder. The knot-holder's construction allows folding the ladder in half transforming it into the symmetric stepladder. On both sides of the ladder to the bowstrings rubber bearings are mounted. Rungs are covered with a spray to prevent slipping worker’s shoes. The rung’s step is 34 sm., ladder’s length is from 3 to 7 m., height from 1,5 to 3,5 m., height of stepladder is from 1,5 to 3,5 m., weigh from 11 to 29 kg.
Folded ladders
Тип
a
b
c
d
n
m
DSSP-3/1,5
3
40
67
34
8
11
DSSP-4/2
4
40
74
34
12
16
DSSP-5/2,5
5
40
74
34
14
19
DSSP-6/3
6
40
74
34
18
23
DSSP-7/3,5
7
40
74
34
20
28
Stepladders with symmetrical and vertical support (Wall) are intended for carrying out works at the enterprises of energetic, telecommunications, Subway, etc. There are rubber bearings on the lower ends of bowstrings. The stepladders have a device of type of hook to prevent the spontaneous spreading during the work and for retention in folded state. For comfort and safety during the work the stepladder’s working platform is equipped with a handrail – support for hands (handholds). Rungs are covered with a spray to prevent slipping worker’s shoes. The rung’s step is 34 sm., height from 1,5 to 3,7 m., height of the working platform is from 1 to 3 m high, weigh from 9 to 17 kg.
