WO2002066778A1

WO2002066778A1 - Portable, collapsible mini-ladder

Info

Publication number: WO2002066778A1
Application number: PCT/MX2002/000011
Authority: WO
Inventors: Jose Rene Asid Gaytan
Original assignee: Jose Rene Asid Gaytan
Priority date: 2001-02-22
Filing date: 2002-02-18
Publication date: 2002-08-29

Abstract

The invention relates to a ladder that collapses longitudinally and which is characterised essentially in that the longitudinal supports thereof can be tongue-and-grooved when said ladder is being folded up such that the male longitudinal supports (2) are inserted into the female longitudinal supports (3). The rungs can be adapted to different measurements and the ladder can be used as a scaffold.

Description

FOLDING PORTABLE MINISCALERA

DETAILED DESCRIPTION OF THE INVENTION

The description of this innovation of folding or folding mini-ladder

Manual or handy portable millimeter is based on the conception of your

structures, structures are made up of their steps, figure (No. 1) their

male stringers figure (No. 2) and their female stringers figure (No. 3) the

rungs are rectangular prism, each and every one is perforated to

all along its central length, making a round tunnel (T) from side to

side, inside this tunnel (T) the supports (K) of each step slide

No. l) the supports (K) are two, both slide inside the round tunnel

(T) one on the right side another on the left as well as forward or

backwards this movement is done to widen or narrow the

horizontal lengths of its steps (No. 1), with the supports (K) the

junction of the steps (No. 1) with the stringers, the supports (K) carry

guides (ch) that are attached almost at the beginning of each support (K), the guides

(ch) can move forward or backward through a channel (H) that is made in the part

frontal to each and every step (No.l) this channel (H) communicates directly with the tunnel (T) where the supports () slide. With the

guides (ch) supports (K) can move forward or backward to certain

measures (b) these measures (b) are in the center of the step (No. 1) in the

front, both are part of the channel (H) one on the right side another of the

left, are almost joined, the other two measures (b) are at

ends of the same channel (H) one on the right side the other on the left. With

the guides (ch) the supports (K) are firmly fixed so as not to rotate, so

gives stability to the steps (No. 1) this stability if possible by its

strong and safe (A) that carry their steps (No. l) their stringers

males (No.2) and their female stringers (No.3). At the ends of the

stringers that do not join with the supports (K) as is done where

if they carry rungs (No. 1) this union between the stringers is carried out with their

half-key (D), half-key (D) is removable, dodged and turned

to put with ease, the half-keys (D) always remain and are firm

in their places. The stringers are divided into male stringers fig. (No.2) and in

female stringers fig. (No.3) to the male stringers fig. (No.2) they are made

some cuts like this are formed overhangs or eyebrows (F), these eyebrows (F) are made

with millimeter measurements, the eyebrows (F) are formed on both sides of the

male stringers fig. (No.2). To female stringers fig. (No.3) they are made a channel (G) to each and every one of them, these channels (G) are also made

with millimeter measurements. Thus the male stringers fig. (No.2) with the stringers

females fig. (No.3) they are assembled exactly fig. (No.7) to conform

its parallel millimeters. You can also remove stringers and rungs to

reduce the length to the parallel ones, this task of giving them more length or less

Length is made by its removable semi-nails (D), it can also become

floor scaffolding for cuts in the form of "X" (V) that are made to all

female stringers fig (No.3) at a single end thereof. Your folding system

or folding is best defined in the drawings or figures that are: fig.

(No. 5) start of deployment and fig. (No 6) . So: further deployment progress, this

deployment continues until it reaches the required length, it will fold again

or closing is easier. Thus one of these mini-ladder with an acceptable measure of 6

mts. in length and with steps of 35 cms. wide can be transported in a

small case of 26 cms. wide with 35 cms. long and 50 cms. tall with

any facility, or even without the case, only a short rope is necessary to

tie it to its central part and thus carry it, or just store it in any small

space somewhere. This folding portable ladder can be made or

manufacture in aluminum, in wood reinforced plastics for high strength of

weight and in some variations or alliances of metals. BACKGROUND OF THE INVENTION

The antecedents of the stairs are millenary, at present there are

electric as in the subway in Mexico City, the aluminum manuals

or wood and others.

-5-

OBJECT OF THE INVENTION

The objective of this innovation of mini-ladder is to propose to provide a service

practical and efficient in its transportation, useful in its use and that can be stored

in any small space somewhere.

BRIEF DESCRIPTION OF THE FIGURES.

The figures are the steps and the stringers the steps fig. (No. 1) are from

rectangular prism shape these are perforated all along their center

longitudinal to make a round tunnel (T) from side to side within each

step fig. (No. 1) inside this round tunnel (T) the

supports (K) of the steps, the supports of the step fig. (No. l) are two,

one slides on the right side into the tunnel and the other on its side

left of the same, these supports (K) make the union of the

steps fig. (No.l) with the stringers. The stringers are divided into male stringers fig. (No.2) and female stringers fig. (No.3) the union of

a certain amount of male stringers fig. (No.2) with an equal

of female stringers fig. (No.3) make the parallels of this possible

innovation.

Claims

CLAIMS Having sufficiently described my invention of innovation which I consider as a novelty and therefore claim as my sole and exclusive property, the content of the following clauses:

one . The mechanics design of your folding or folding system that I use or

I use to deploy it and lengthen it to meters or to reduce it again to reduce meters

at a small size of few cms. to transport it or to store it.

Precisely this size that acquires a few cms. being closed or

folded together they form their main design, this is the best

possible defined in fig. (No.4). So fig. (No.4) closed or folded fig

(No.5) start of deployment and fig. (No.6) further advance of deployment. East

deployment is continued until the required length is reached, to

Folding or closing it again is easier.

2. The design of the steps with the mechanics of its system to widen the

or to narrow them in their horizontal lengths, these steps are

they can do in different longitudinal lengths and in different widths or

thicknesses its structures can be made in the form of a rectangular prism or

round cylindrical or rectangular semiprism or cylindrical semi-rounds and

also in some other geometric shapes.

3. The designs of the stringers with the mechanics of its millimeter system for make the parallels and also to turn it into floor scaffolding at different

heights by a cut that is made in the form of "X" (V) at a single end in the

female stringers, these stringers can be made in different lengths

longitudinal and different widths or thicknesses also their structures are

They can make rectangular prism, rectangular or round semiprism

cylindrical or semi-round cylindrical and also in some other ways

geometric

All of them with its system of millimeter measurements. So the male stringers

with the female stringers they are assembled exactly fig. (No7) for

make up the parallel millimeters of this innovation of mini-ladder.