RU1825388C - Ladder - Google Patents

Abstract

The invention relates to the field of consumer goods and can be used as a universal device for the vertical movement of a person. The purpose of the invention is to improve ease of use. The staircase is made of unified modules, including bowstrings, connected by steps 2 with a length multiple of the steps, equipped with pins in the lower part and brackets, sockets and holes for the brackets in the upper part. The modules of the vertical ladder are contacted by pins and sockets, the step ladder by means of brackets 4 and holes. Their fastening and fixing are carried out by means of brackets, which engage with through holes of each string. The step ladder can also be made of two vertical stairs of the same length. It is possible to equip the stairs with additional steps, Offset relative to the main steps by half a step and attached to the bowstrings. 2 s. P. f-ly, 7 ill. S Ј s u CJ 00 s CJ

Description

FIG. 5

The invention relates to the field of consumer goods and can be used as a universal device for the vertical movement of a person.

The purpose of the invention is to improve ease of use.

In FIG. 1 shows a vertical staircase of modular design: in FIG. 2 - a step ladder of modular design: in FIG. 3 - view A in FIG. 1; in FIG. 4 is a section in FIG. 2: in FIG. 5, 6, 7 - possible designs of steps.

The staircase is made of unified modules, including bowstrings 1, connected by steps 2 with a length multiple of steps 2, equipped with pins 3 in the lower part, and brackets 4, sockets 5 and holes 6 for brackets 4 located in the upper part with the possibility of simultaneous contact with pins 3 or brackets 4 of an adjacent module. The adjacent ends 7 and 8 of the steps 2 of each module are connected inextricably. The modules of the vertical ladder are contacted by means of pins 3 and sockets 5, the step ladder - by means of brackets 4 and holes b for brackets. Their fastening and fixing are carried out by means of brackets 9, which engage with through holes 10 of each of 1. The step ladder can also be made of two vertical stairs of the same length. In addition, the staircase is equipped with additional steps 11, offset relative to the main steps 2 by half the step size.

For convenient location of the feet and without sacrificing reliability and weight characteristics, the staircase structure may include steps 12 or 12 and 13, made S-shaped with straight sections, which will allow to reduce the overall width of the stairs if necessary.

The device operates as follows, about

Example 1. For the manufacture of a vertical ladder, the required number of modules is taken and joined by inserting the pins 3 into the slots 5. The modules are fixed by inserting the brackets 9 into the holes 10 on the bowstrings 1. An assembled ladder with a rhythmic pattern of steps 2; 2, 11; 12 or 12. 13 is attached to a support plane or hung by brackets 4 on a base surface (not shown).

The ladder is ready for vertical movement of a person with or without a load.

Example 2. For the manufacture of a step ladder, take two modules or two vertical stairs of the same length and lay them on top of each other. The brackets 4 are engaged with the holes 6 for the brackets, after which the modules are opened and fixed with two brackets 9 by inserting them into the holes 10 on the bowstrings 1. The stirrup is installed in the right place, after which it can be used for various operations .

Dismantling the above stairs

carried out in the reverse order of assembly. The disassembled staircase is compact. Its storage and transportation do not cause difficulties.

Some inconveniences caused by the arrangement of adjacent steps 2 or 12 at different heights are compensated by the use of additional steps 11 or 13 in the design of the modules, respectively. A set of universal modules allows you to design ladders of the required height for various technological needs. Relative lightness, strength and compactness make such a ladder useful and

Claims (3)

1. A ladder, including bowstrings and steps attached to them, made of horizontally placed S-shaped elements, rotated relative to each other by 180 ° and connected by ends, characterized in that. in order to increase the convenience of operation, the bowstrings are made in the form of modules with a length multiple of the step of the steps, equipped with pins at the bottom and the sockets for the pins of the adjacent module at the top, and the modules are equipped with additional steps that are half offset from the main ones step steps and attached to bowstrings, 2, A ladder according to claim 1, characterized in that the modules are fastened together by brackets. 3. Staircase 1 and 2, characterized in that the modules are made in the upper part with brackets and holes for the brackets of the adjacent module to form a step ladder, wherein Modules connected by brackets are additionally braced together. Ј1 FIG. 4 FIG. 6 FIG. 7