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WO2009093886A1 - Securable staircase with sliding step - Google Patents

Securable staircase with sliding step Download PDF

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Publication number
WO2009093886A1
WO2009093886A1 PCT/MX2008/000087 MX2008000087W WO2009093886A1 WO 2009093886 A1 WO2009093886 A1 WO 2009093886A1 MX 2008000087 W MX2008000087 W MX 2008000087W WO 2009093886 A1 WO2009093886 A1 WO 2009093886A1
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WO
WIPO (PCT)
Prior art keywords
bar
ladder
fixed
lateral
sliding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/MX2008/000087
Other languages
Spanish (es)
French (fr)
Inventor
Marisela Rojas Arriaga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2009093886A1 publication Critical patent/WO2009093886A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/12—Lifts or other hoisting devices on ladders

Definitions

  • the present invention is related to the means employed for the ascent and descent of people and / or load of residential houses, residential, departmental buildings, hospitals, companies, etc. More specifically, it refers to a ladder with at least one sliding step and a mechanism of ascent and / or descent of people and / or cargo by air.
  • the present invention has as its main objective to make available a ladder with a sliding step, to reduce the risks, as well as to reduce the times when ascending and / or descending, to be comfortable and to reduce the area of extension when being supported to the wall.
  • Another objective of the present invention is to provide a ladder to ascend and / or descend, that also facilitates the ascent and / or descent of people with greater efficiency, safety and speed, by means of the creation of at least one sliding step, implemented in a safe and efficient way and at a low cost, the mechanism by means of the stair air that It is intended to protect.
  • the adjustable ladder with sliding steps in accordance with the present invention is composed of an adjustable clamping mechanism consisting of four "L" angles that can be coupled in pairs, an angle of each pair comprising one of its arms a perforation, while the other angle of each pair comprises more than one perforation for the corresponding adjustment, each pair of angles cooperating in sliding form and being hooked and fixed by a fastening means when said perforations coincide according to what is required. From each pair of angles, one of them, the one that is towards the outside, comprises fixed bearing in the lower part of the angles for resting against the wall or wall.
  • a bearing a lateral support means which are projected inferiorly, formed by two straight lateral supports, a groove with insert in its corresponding internal face through which the lateral ends of a means of insertion and sliding Sliding step to which a friction motion control mechanism is operatively associated in its lower part, formed by a spring inserted in a tube, two load supports and two bearings, in addition to longitudinal guide rails at its internal angles so that in they are coupled with continuous guides arranged in the outer part of the lateral projections of said step;
  • a horizontal hollow transverse bar with a gap in the initial and final part located on the lower face is arranged mountable and removable to engage in a coincident manner with the holes of the upper ends of said lateral supports, also, it has a hole in the central part so that the corresponding part of a guide shaft is coupled;
  • a horizontal hollow transverse bar is projected with a gap in the initial part and another in the end arranged in the lower face to engage in a
  • the upper part of said lateral supports have an outward inclination to free the space of the step, and the central hollow is coupled coincidentally to the hollow of the upper part of said guide shaft which has a groove with insert and a guide rail longitudinally in the corresponding internal face where an end of the side of a sliding step means is inserted and slides, only to its straight part.
  • Said lateral support means internally comprises a crane type mechanism for the control of ascent and / or descent of the step, consisting of the step itself with freedom of vertical movement, which has axes and guides at its lateral ends and on one side the which are inserted in a vertical groove and rails arranged in said lateral supports and guide shaft respectively that serve as a guide to said sliding step, the guide of said sliding step carries a hollow in the semi-peripheral shape to the center so that it is inserted therein a tube; continuous guides in the external angles of the guide of said step that are inserted in said rails arranged in the internal angles of said lateral supports that serves as a sliding guide; tubes inserted in said two lateral supports and said upper and lower transverse bars which externally have springs fixed by one of the ends in the upper part of each of the lateral guide of said sliding step and another spring at the height of a section of a telescopic tube in addition, own fixing accessories, meanwhile, the opposite ends are fixed to internal plates arranged in the central part of said horizontal
  • Said guide axis carries said fixed tube internally, in the upper part, a telescopic tube, which can be extended to the lower part of said guide axis and internally a sack is fixed, from the upper part of said guide axis with an extension to the upper part of said lateral supports, which carries air and due to the pressure exerted on said lateral guide of said step it will slide upwards.
  • said guide axis has said telescopic tube internally where the last section of said telescopic tube will be dragged by tapes attached to the ends of said springs arranged in the part upper of the ladder so that when acting it will drag the sections of said telescopic tube and the air will be displaced towards the ends of said sack and the air pressure acts in ascending in said step.
  • the control of said step will be regulated by a handle system.
  • Figure 1 shows a perspective view of a lateral support means showing two lateral supports, a guide shaft, an adjustable mechanism for fastening to the area where the ladder is to be fixed and two crossbars that cooperate for the movement of said step or slider bar
  • Figure 2 is a perspective view of said lateral supports showing a guide rail and tube.
  • Figure 3 is a perspective view of said guide axis showing a guide rail.
  • Figure 4 shows a front view of a sliding step means.
  • Figure 5 shows a bottom view of a step or bar means with a friction motion control mechanism with a cut in the tube to show the internal spring.
  • Figure 6 illustrates a front section of a sliding step that is projected on one side by means of a handle.
  • Figure 7 is a front section of said lateral supports showing a mechanism of ascent and / or descent of steps and / or bars by means of air.
  • FIG. 1 shows a perspective view of a lateral support means showing two lateral supports, a guide shaft, an adjustable mechanism for securing the area where the ladder is to be fixed and two crossbars that cooperate for the movement of said step or sliding bar.
  • Said ladder is composed of a clamping mechanism adjustable to the width of the surface in which it will be adapted, either in a wall, window, etc., formed by four angles in the form of "L" (No.1), attachable in pairs, one angle of each pair comprises in one of its arms a perforation (No.28), while the other angle of each pair comprises more than one series of perforations (No.3) for adjustment, each pair of angles cooperating in sliding form in their corresponding perforated arms and being hooked and fixed by fastening means when said perforations coincide (Nos.3) and (No.28), as required.
  • the (No.1), of any appropriate material, are shaped with a width and thickness, such that they withstand the stresses generated during the normal use of the ladder, since most of the effort is concentrated there.
  • the adjustment of said adjustable clamping mechanisms will be made with a screw and a nut placed in the perforations (No.3) and (No.28) coinciding with the angles (No.1), which in the example of practical embodiment represented in
  • the figures are square angles with a screw and nut but the adjustable mechanism and shape of arms can vary without affecting the essence of the present invention.
  • angles (No.1) comprising a bearing (No.2)
  • a lateral support means (No.4) that are projected below, formed by two supports lateral (No.4) vertical and in parallel with a slot with insert (No.7) in the corresponding internal face and guide rails (No.9), arranged in each of the internal angles and insert some lateral projections of a step or bar (No. 12) called shafts (No. 13) and guides (No.
  • a hollow crossbar (No.5), arranged at the upper ends of said lateral supports (No.4), with a gap in the initial and final part in the lower face, which is mountable and removable by bolts with nuts or any another suitable fastening means, in a manner coinciding with the hollow of said crossbar (No.5) and the hollow of the upper end of said lateral supports (No.4) and a hollow in the central part in a coincident manner so as to fit and fix, by welding or any suitable or preferably mountable and removable fastening means, a guide shaft or vertical crossbar (No.8).
  • Said transverse bar (No.5) has a hollow, preferably rectangular, with a peripheral eyebrow that serves to fit and fix, by any suitable means of attachment, a piece (No.30) that can be of metal or any resistant material with appropriate mechanical properties, formed by a box, its lower face has a hollow and internally it carries a round central transverse tube, which is fixed, by welding or any suitable means of attachment, at its ends to said internal sides of said box (No. 30) and in the longitudinal upper part of said horizontal transverse tube is fixed, by clamp or any suitable fastening means that can be of metal or any resistant material, the upper face of said box (No.5)
  • said upper transverse bar (No.6) has a hollow in the central part for to be fixed, by welding or any suitable fastening means, in a manner coincident with another hollow of said guide axis (No.8), said guide axis (No.8), which carries the protruding upper end of said bar Transversal (No.5) also has a hollow with eyebrow on the inner face so that another piece is fixed (No.
  • Said guide axis (No.8) carries a bar with the ends in the form of a square (No.29) fixed, by welding or any suitable fastening means and that can be made of metal or any resistant material with properties appropriate mechanics, which has a hollow in the central part where a piece is inserted (No.30) and said upper face will be suspended in equilibrium in said central hole so that when in imbalance, in the part that descends a hook (No.37) will be inserted as a safe for control of movement of step or bar.
  • Said guide axis (No.8) carries on the upper and lower part of said fixed outward inclination, by welding or any other suitable fastening means, and another transverse bar with the squared-shaped ends (No.29 ) with an internal part (No.30) so that said cover or bar is suspended in equilibrium in said central hole so that when it is in imbalance, in the part that descends a hook (No.37) will be inserted as a safety control step or bar movement.
  • Said lateral supports carry a reinforcement means or bar (No.34) with the square-shaped ends preferably in the upper part and another in the lower part fixed, by rivets or any suitable fastening means and / or mountable and removable and can be metallic or of any resistant material and appropriate mechanical properties, which serve to keep said ladder rigid and support against the wall or wall.
  • FIG. 2 is a perspective view of said lateral supports showing a guide rail and tube.
  • Said lateral support means is formed by two lateral supports (No.4) arranged in parallel and vertical form, and a guide axis (No.8), which have a central groove with said graft (No.7) of friction material and fixed, by adhesive or any suitable fastening means on the internal face, in which said shafts (No.
  • tube (No. 10) can be metal or of any resistant material with appropriate mechanical properties, which in the practical embodiment example said lateral support (No.4) has a rectangular prism shape but is. variant and its shape, number and arrangement of its rails (No.9) can vary and said tube (No.10) is circular but its shape can vary without affecting the essence of the present invention, and in the upper part it has an outward inclination to allow, with space, the free sliding of said step or bar (No.12).
  • FIG. 3 is a perspective view of said guide axis showing a guide rail.
  • FIG. 4 shows a front view of a sliding step means.
  • Said step means or sliding bar is formed by a central body with lateral projections called shafts (No.13) and lateral guides (No.14) and another arranged on the outer side, which are inserted into said grooves with graft (No. 7) and said rails (No.9) of said lateral supports (No.4), the one arranged on one side is inserted in said rail (No.11) of said guide axis (No.8), which may be less such or of any resistant material with appropriate mechanical properties, and carrying a cover of friction and / or damping material to avoid noise, which serve as a guide to said step (No.12) in sliding.
  • Said lateral guides (No.13) have a square shape and on the outside of their angles it has continuous projections or guides (No.15) that are those that are inserted in said rails (No.9) as guides to said step (No .12) in sliding, it also carries in said lateral guide (No.14) a semi-peripheral and semi-circular hollow (No.16) so that said tube (No.10) is inserted, with damping material to avoid noise in slide that in the practical example shows said guides in square and hollow form in semi-circular form (No.16) but is variable without thereby affecting the essence of the present invention.
  • step (No.12) which has an axis (No.13) and guide (No.14) inserted in said guide axis (No.8) for sliding control and can be made of metal or any other material with appropriate mechanical properties and wear a cover of damping material to avoid slip noise.
  • FIG. 5 shows a bottom view of a step or bar means with a friction motion control mechanism with a cut in the tube to show the internal spring.
  • Said step means or sliding bar has a central body, axes (No.13) and guides
  • FIG. 6 it illustrates a frontal section of a sliding step that has a handle means projected on one side.
  • Said handle means is formed by a hollow bar (No.36), which may be of metal or nal resistant mate- with mechanical properties appro priate ⁇ which carries one end a perpendicular projection with two mating recesses in the hollow of said rod (No.36) and its opposite end is fixed, at the side of said sliding step (No.12) which can be made of metal or any other resistant material with appropriate mechanical properties; internal threads in said bar (No.36), two tensioned threads and of resistant material, whose lower ends are fixed, by a fixing accessory or any suitable fastening means; a hook (No.37) the opposite end fixed, by its attachment or any other suitable means of attachment to a box (No.35) similar to the piece (No.30) so that when pressing a side of the surface said upper thread slides down and said hook protrudes (No.37) and will lock with the piece (No.30)
  • FIG. 7 is a front cut of said lateral supports showing a mechanism of ascent and / or descent of steps and / or bars through air.
  • Said means of ascent and / or descent through air is formed by a tube (No. 10) disposed internally along said lateral supports (No.4), on both bars (Nos. 5 and 6), arranged in the upper and lower ends respectively of said lateral supports (No.4), and merged into only one in the lower part of said guide axis (No.8) to the upper part; springs (No.21) two springs, with adequate resistance, inserted outside said tubes (No.10) by the upper ends are fixed, by its attachment as a hook or any suitable means of attachment, to plates (Nos.
  • a telescopic tube (No.31) formed by several sections, which when deployed its length reaches the lower part of said guide axis (No.8), inserted in said tube (No.10) and in said guide axis (No. 8) that it is fixed, by welding or any suitable fastening means and that it can be made of metal or any resistant material with appropriate mechanical properties, for its part of greater dimension, in the upper part of said guide axis (No.8) the which carries a sack internally (No.25), whose end has a clamping accessory such as a ring to prevent air from spreading in an unwanted way, whose end has a suitable suitable clamping accessory, by any suitable clamping means and which may be of plastic material or of any material with suitable mechanical properties, to the upper face and lower part of said guide shaft (No.8), with an opening with a valve (No.26) which is coupled to the arranged hole on the upper face of said guide axis (No.8) and cu opened by said cover (No.27) so that the user has access to said
  • said lateral supports (No.4) which can be of plastic material or any other material with appropriate mechanical properties , whose opposite ends carry a clamping means such as a ring or any other suitable, which is fixed by pressure or any suitable clamping means, to the lower part of said lateral guide (No.14) of said step (No. 12) and inside it carries compressed air so that when said telescopic tube is deployed (No.31) the sections slide and compress in that part Said bag (No.25) and move the air to the ends so that it exerts pressure below of said lateral guides (No.14) of said steps (No.12) and slide them upwards for the ascent function.
  • a clamping means such as a ring or any other suitable
  • Said telescopic tube (No.31) carries in its last tubular section, the smallest diameter, in its fixed lower part, by loop or by any suitable means of attachment, the two-wire end (No.33), of canvas or any other material with appropriate mechanical properties, which goes internally in said tube (No.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)

Abstract

The present invention relates to the means used for the ascent and/or descent of people and/or loads in dwellings, residential buildings, etc. More specifically, the invention relates to a securable staircase with sliding step operated by means of air, which can be fastened to a window or wall, depending on the user's needs, formed by a means for adjustable securing to the area where the staircase is to be set up; a pair of lateral supporting members with a groove into which are inserted the lateral projections of a sliding bar or step that, within, has a crane-like mechanism with the sliding bar or step thereof having freedom of movement, with a maximum run of the size of the lateral supporting members thereof. The invention comprises two hollow transverse bars, one arranged in the upper part of said lateral supporting members and the other hollow transverse bar located in the lower part thereof; a vertical guide shaft arranged in the central part between said hollow transverse bars in which are inserted a tube, a bag and a compressor, and on the outside thereof it has a spring, which components interact to form an ascent and/or descent mechanism operated by means of air; a bar or step control formed by casings with tensioned wires and hooks as safety devices for controlling said step and, in turn, same are used to immobilize and release said step, as required.

Description

ESCALERA SUJETABLE CON PELDAÑO DESLIZABLE CLIMBABLE STAIRCASE WITH SLIDING ROPE

CAMPO DE LA INVENCIÓNFIELD OF THE INVENTION

La presente invención está relacionada con los medios empleados para ascenso ylo descenso de per-- sonas y/o carga de casas habitación, edificios residenciales, departamentales, hospitales, empresas, etc. Más específicamente está referida a una escalera con por Io menos un peldaño deslizable y un mecanismo de ascenso y/o descenso de personas y/o carga por medio de aire.The present invention is related to the means employed for the ascent and descent of people and / or load of residential houses, residential, departmental buildings, hospitals, companies, etc. More specifically, it refers to a ladder with at least one sliding step and a mechanism of ascent and / or descent of people and / or cargo by air.

ANTECEDENTES DE LA INVENCIÓNBACKGROUND OF THE INVENTION

En Ia actualidad las escaleras con peldaños transversales convencionales que podríamos denominar escaleras fijas, requieren para su correcto funcionamiento de ser apoyadas al muro además, de contar con un área de extensión.At present, the stairs with conventional transverse steps that we could call fixed stairs, require for their correct operation to be supported to the wall in addition, to have an extension area.

Como puede observarse, las limitantes e inconvenientes de las escaleras fijas convencionales es que son inseguras por el peligro de resbalarse, el usuario realiza un esfuerzo físico para ascender y/o descender y al llevar algún objeto en sus manos el riesgo se duplica por Ia necesidad de sujetarse de Ia escalera fija y tener que moverse para ascender y/o descender además el ascenso y/o descenso es más lento.As can be seen, the limitations and disadvantages of conventional fixed ladders is that they are unsafe due to the danger of slipping, the user makes a physical effort to ascend and / or descend and when carrying an object in their hands the risk is doubled by the need of holding on to the fixed ladder and having to move to ascend and / or descend as well the ascent and / or descent is slower.

OBJETIVOS DE LA INVENCIÓNOBJECTIVES OF THE INVENTION

La presente invención tiene como objetivo principal hacer disponible una escalera con peldaño desliza- ble, reducir los riesgos, así como disminuir los tiempos al ascender y/o descender, ser confortable y reducir el área de extensión al ser apoyada al muro.The present invention has as its main objective to make available a ladder with a sliding step, to reduce the risks, as well as to reduce the times when ascending and / or descending, to be comfortable and to reduce the area of extension when being supported to the wall.

Otro objetivo de Ia presente invención es proveer una escalera para ascender y/o descender, que además facilite el ascenso y/o descenso de personas con mayor eficacia, seguridad y rapidez, mediante Ia creación de por Io menos un peldaño deslizable, implementado de manera segura y eficiente y de bajo costo el mecanismo por medio de aire de Ia escalera que se pretende proteger.Another objective of the present invention is to provide a ladder to ascend and / or descend, that also facilitates the ascent and / or descent of people with greater efficiency, safety and speed, by means of the creation of at least one sliding step, implemented in a safe and efficient way and at a low cost, the mechanism by means of the stair air that It is intended to protect.

Otros objetivos y ventajas de Ia presente invención podrán ser aparentes del estudio de Ia siguiente descripción y los dibujos que se acompañan con fines exclusivamente ilustrativos y no limitativos.Other objectives and advantages of the present invention may be apparent from the study of the following description and the accompanying drawings exclusively for illustrative and non-limiting purposes.

BREVE DESCRIPCIÓN DE LA INVENCIÓNBRIEF DESCRIPTION OF THE INVENTION

De manera general, Ia escalera ajustable con peldaños deslizables de conformidad con Ia presente invención, se compone por un mecanismo de sujeción ajustable consistente en cuatro ángulos en forma de "L" acoplables en pares, un ángulo de cada par comprende en uno de sus brazos una perforación, en tanto que el otro ángulo de cada par comprende más dé una perforación para el ajuste correspon- diente, cada par de ángulos cooperando en forma deslizable y siendo enganchados y fijados por un medios de sujeción al coincidir dichas perforaciones según Io requerido. De cada par de ángulos, uno de ellos, el que queda hacia el exterior, comprende fijo cojinete en Ia parte baja de los ángulos para el descanso contra Ia pared o muro.In general, the adjustable ladder with sliding steps in accordance with the present invention is composed of an adjustable clamping mechanism consisting of four "L" angles that can be coupled in pairs, an angle of each pair comprising one of its arms a perforation, while the other angle of each pair comprises more than one perforation for the corresponding adjustment, each pair of angles cooperating in sliding form and being hooked and fixed by a fastening means when said perforations coincide according to what is required. From each pair of angles, one of them, the one that is towards the outside, comprises fixed bearing in the lower part of the angles for resting against the wall or wall.

En dichos ángulos que comprenden cojinete, se comprenden fijamente un medio de soporte lateral que se proyectan ¡nferiormente, conformados por dos soportes laterales rectos, una ranura con inserto en su cara interna correspondiente por donde se insertan y deslizan los extremos laterales de un medio de peldaño deslizable al cual se Ie asocia operablemente un mecanismo de control de movimiento por fricción en su parte inferior, formado por un resorte inserto en un tubo, dos soportes de carga y dos cojinetes, además unos rieles guias longitudinal en sus ángulos internos para que en ellas se acoplen unas guías continuas dispuestas en Ia parte exterior de las proyecciones laterales de dicho peldaño; en el extremo superior de dichos soportes laterales se dispone montable y desmontable una barra transversal hueca horizontal con un hueco en Ia parte inicial y final localizados en Ia cara inferior para acoplarse en forma coincidente con los huecos de los extremos superiores de dichos soportes laterales, además, lleva un hueco en Ia parte central para que se acople Ia parte correspondiente de un eje guía; en su extremo inferior se proyecta una barra transversal hueca horizontal con un hueco en Ia parte inicial y otro en Ia final dispuestos en Ia cara inferior para acoplarse en forma coincidente con los huecos de los extremos inferiores de dichos soportes laterales y lleva un hueco en Ia parte central para que se acople al hueco de Ia parte inferior de dicho eje guía para mantener rígida a Ia escalera, dicho eje guía o barra hueca vertical lleva el extremo inferior en forma de escuadra que se acopla en forma coincidente, el extremo inferior al hueco central de Ia barra transversal hueca inferior. La parte superior de dichos soportes laterales tienen una inclinación hacia el exterior para liberar el espacio del peldaño, y el hueco central se acopla en forma coincidente al hueco de Ia parte superior de dicho eje guía el cual lleva una ranura con inserto y un riel guía longitudinal en Ia cara interna correspondiente por donde se inserta y desliza un extremo del costado de un medio de peldaño deslizable, únicamente hasta su parte recta.At said angles comprising a bearing, a lateral support means which are projected inferiorly, formed by two straight lateral supports, a groove with insert in its corresponding internal face through which the lateral ends of a means of insertion and sliding Sliding step to which a friction motion control mechanism is operatively associated in its lower part, formed by a spring inserted in a tube, two load supports and two bearings, in addition to longitudinal guide rails at its internal angles so that in they are coupled with continuous guides arranged in the outer part of the lateral projections of said step; at the upper end of said lateral supports a horizontal hollow transverse bar with a gap in the initial and final part located on the lower face is arranged mountable and removable to engage in a coincident manner with the holes of the upper ends of said lateral supports, also, it has a hole in the central part so that the corresponding part of a guide shaft is coupled; at its lower end a horizontal hollow transverse bar is projected with a gap in the initial part and another in the end arranged in the lower face to engage in a coincident manner with the hollows of the lower ends of said lateral supports and carries a gap in the central part so as to fit the hollow of the lower part of said guide shaft to keep the ladder rigid, said guide shaft or vertical hollow bar carries the lower end in the form of a square that is coupled in a coincident manner, the lower end to the hollow center of the lower hollow crossbar. The upper part of said lateral supports have an outward inclination to free the space of the step, and the central hollow is coupled coincidentally to the hollow of the upper part of said guide shaft which has a groove with insert and a guide rail longitudinally in the corresponding internal face where an end of the side of a sliding step means is inserted and slides, only to its straight part.

Dicho medio de soporte lateral comprende internamente un mecanismo tipo grúa para el control de ascenso y/o descenso del peldaño, consistente en el propio peldaño con libertad de movimiento vertical, el cual cuenta con ejes y guías en sus extremos laterales y en un costado los cuales van insertos en una ranura vertical y rieles dispuestos en dichos soportes laterales y eje guía respectivamente que sirven de guía a dicho peldaño en deslizamiento, Ia guía de dicho peldaño deslizable lleva al centro un hueco en forma semi-periférica para que en ella se inserte un tubo; unas guías continuas en los ángulos externos de Ia guía de dicho peldaño que van insertas en dichos rieles dispuestos en los ángulos internos de dichos soportes laterales que sirve de guía en deslizamiento; unos tubos insertos en dichos dos soportes laterales y dichas barras transversales superior e inferior los cuales llevan en forma externa unos resortes fijo por uno de los extremos en Ia parte superior de cada una de Ia guía lateral de dicho peldaño deslizable y otro resorte a Ia altura de una sección de un tubo telescópico además, accesorios de fijación propios en tanto, los extremos opuestos van fijos a unas placas internas dispuestas en Ia parte central de dichas barras transversales horizontales dispuestas en el extremo superior de dichos soportes laterales, dichos resortes inferiores van insertos en dichos tubos cuyo extremo van fijos a una placa dispuesta en Ia parte central e interna en dicha barra transversal hueca dispuesta en los extremos inferiores de dichos soportes laterales y el otro extremo fijo en Ia parte inferior de cada una 'de las proyecciones laterales de dicho peldaño, que cooperan para el movimiento de ascenso y/o descenso de dicho peldaño deslizable. Dicho eje guía lleva internamen- te dicho tubo fijo, en Ia parte superior, un tubo telescópico, que se puede extender hasta Ia parte inferior de dicho eje guía e internamente se fija un saco, desde Ia parte superior de dicho eje guía con una extensión hasta Ia parte superior de dichos soportes laterales, el cual lleva aire y debido a Ia presión que ejerza sobre dicha guía lateral de dicho peldaño Io deslizará hacia arriba.Said lateral support means internally comprises a crane type mechanism for the control of ascent and / or descent of the step, consisting of the step itself with freedom of vertical movement, which has axes and guides at its lateral ends and on one side the which are inserted in a vertical groove and rails arranged in said lateral supports and guide shaft respectively that serve as a guide to said sliding step, the guide of said sliding step carries a hollow in the semi-peripheral shape to the center so that it is inserted therein a tube; continuous guides in the external angles of the guide of said step that are inserted in said rails arranged in the internal angles of said lateral supports that serves as a sliding guide; tubes inserted in said two lateral supports and said upper and lower transverse bars which externally have springs fixed by one of the ends in the upper part of each of the lateral guide of said sliding step and another spring at the height of a section of a telescopic tube in addition, own fixing accessories, meanwhile, the opposite ends are fixed to internal plates arranged in the central part of said horizontal crossbars arranged at the upper end of said lateral supports, said lower springs are inserted in said tubes whose end are fixed to a plate arranged in the central and inner part in said hollow cross bar arranged at the lower ends of said side supports and a lower end fixed in the part of each 'of the lateral projections of said step, which cooperate for the movement of ascent and / or descent of said sliding step. Said guide axis carries said fixed tube internally, in the upper part, a telescopic tube, which can be extended to the lower part of said guide axis and internally a sack is fixed, from the upper part of said guide axis with an extension to the upper part of said lateral supports, which carries air and due to the pressure exerted on said lateral guide of said step it will slide upwards.

Para que el aire de dicho saco se distribuya por el espacio de dichos soportes laterales , dicho eje guía cuenta con dicho tubo telescópico internamente donde Ia última sección de dicho tubo telescópica será arrastrada por unas cintas sujetas a los extremos de dichos resortes dispuestos en Ia parte superior de Ia escalera para que al actuar arrastrará las secciones de dicho tubo telescópico y el aire será desplazado hacia los extremos de dicho saco y Ia presión del aire actúe en ascenso en dicho peldaño. El control de dicho peldaño estará regulado por un sistema de agarradera.In order for the air in said bag to be distributed through the space of said lateral supports, said guide axis has said telescopic tube internally where the last section of said telescopic tube will be dragged by tapes attached to the ends of said springs arranged in the part upper of the ladder so that when acting it will drag the sections of said telescopic tube and the air will be displaced towards the ends of said sack and the air pressure acts in ascending in said step. The control of said step will be regulated by a handle system.

Para comprender mejor \as características de ¡a invención se acompaña a Ia presente descripción, co- mo parte integrante de Ia misma, los dibujos con carácter ilustrativo más no limitativo, que se describen a continuación.In order to better understand the characteristics of the invention, the present description, as an integral part thereof, is attached to the drawings with illustrative but not limitative character, which are described below.

BREVE DESCRIPCIÓN DE LAS FIGURASBRIEF DESCRIPTION OF THE FIGURES

La figura 1 muestra una vista en perspectiva de un medio de soporte lateral mostrándose dos soportes laterales, un eje guía, un mecanismo ajustable de sujeción al área donde se va a fijar Ia escalera y dos barras transversales que cooperan para el movimiento de dicho peldaño o barra deslizable.Figure 1 shows a perspective view of a lateral support means showing two lateral supports, a guide shaft, an adjustable mechanism for fastening to the area where the ladder is to be fixed and two crossbars that cooperate for the movement of said step or slider bar

La figura 2 es una vista en perspectiva de dichos soportes laterales mostrando un riel guía y tubo.Figure 2 is a perspective view of said lateral supports showing a guide rail and tube.

La figura 3 es una vista en perspectiva de dicho eje guía mostrando un riel guía.Figure 3 is a perspective view of said guide axis showing a guide rail.

La figura 4 muestra una vista frontal de un medio de peldaño deslizable. La figura 5 muestra una vista inferior de un medio de peldaño o barra con un mecanismo de control de movimiento por fricción con un corte en el tubo para mostrar el resorte interno.Figure 4 shows a front view of a sliding step means. Figure 5 shows a bottom view of a step or bar means with a friction motion control mechanism with a cut in the tube to show the internal spring.

La figura 6 ¡lustra una corte frontal de un peldaño deslizable que a un costado lleva proyectado un me- dio de agarradera.Figure 6 illustrates a front section of a sliding step that is projected on one side by means of a handle.

La figura 7 es un corte frontal de dichos soportes laterales mostrándose un mecanismo de ascenso y/o descenso de peldaños y/o barras por medio de aire.Figure 7 is a front section of said lateral supports showing a mechanism of ascent and / or descent of steps and / or bars by means of air.

Para una mejor comprensión del invento, se pasará a hacer Ia descripción detallada de alguna de las modalidades del mismo, mostrada en los dibujos que con fines ilustrativos mas no limitativos se anexan a Ia presente descripción.For a better understanding of the invention, the detailed description of some of the modalities thereof will be shown, shown in the drawings which, for illustrative but non-limiting purposes, are attached to this description.

D ESC RI PCIÓN DETALLADA D EL I NVENTOD ESC RI DETAILED PTION D EL I NVENTO

Los detalles característicos de Ia escalera con peldaño deslizable, se muestran claramente en Ia siguiente descripción y en los dibujos ilustrativos que se anexan, sirviendo los mismos signos de referencia para señalar las mismas partes a que se hace referencia.The characteristic details of the ladder with sliding step, are clearly shown in the following description and in the illustrative drawings that are attached, serving the same reference signs to indicate the same parts to which reference is made.

Haciendo referencia a Ia figura 1 muestra una vista en perspectiva de un medio de soporte lateral mostrándose dos soportes laterales, un eje guía, un mecanismo ajustable de sujeción al área donde se va a fijar Ia escalera y dos barras transversales que cooperan para el movimiento de dicho peldaño o barra deslizable. Dicha escalera se compone por un mecanismo de sujeción ajustable al ancho de Ia superficie en Ia cual va a ser adaptada, ya sea en un muro, ventana, etc, formado por cuatro ángulos en forma de "L" (No.1), acoplables en pares, un ángulo de cada par comprende en uno de sus brazos una perforación (No.28), en tanto que el otro ángulo de cada par comprende más de una serie de perforaciones (No.3) para el ajuste, cada par de ángulos cooperando en forma deslizable en sus correspondientes brazos perforados y siendo enganchados y fijados por medios de sujeción al coincidir dichas perforaciones (Nos.3) y (No.28), según Io requerido. Cada ángulo (No.1) ,que da al exterior, comprende cojinete (No.2), fijos por cualquier medio de suje¬ ción, ubicados en Ia parte baja de los ángulos para el descanso contra Ia pared o muro los cuatro ángu¬ los (No.1), de cualquier material apropiado, están conformados con un ancho y espesor, tales que soporten los esfuerzos generados durante el uso normal de Ia escalera, ya que en ese lugar se concentra Ia mayoría del esfuerzo. El ajuste de dichos mecanismos de sujeción ajustable se hará con un tornillo y una tuerca colocados en las perforaciones (No.3) y (No.28) coincidentes de los ángulos (No.1), que en el ejemplo de realización práctico representado en las figuras son ángulos en forma de escuadra con un tornillo y tuerca pero el mecanismo ajustable y forma de brazos puede variar sin que por ello afecte Ia esencia de Ia presente invención.Referring to Figure 1 shows a perspective view of a lateral support means showing two lateral supports, a guide shaft, an adjustable mechanism for securing the area where the ladder is to be fixed and two crossbars that cooperate for the movement of said step or sliding bar. Said ladder is composed of a clamping mechanism adjustable to the width of the surface in which it will be adapted, either in a wall, window, etc., formed by four angles in the form of "L" (No.1), attachable in pairs, one angle of each pair comprises in one of its arms a perforation (No.28), while the other angle of each pair comprises more than one series of perforations (No.3) for adjustment, each pair of angles cooperating in sliding form in their corresponding perforated arms and being hooked and fixed by fastening means when said perforations coincide (Nos.3) and (No.28), as required. Each angle (No.1), to the outside, comprising bearing (No.2), fixed by any means of suje ¬, located in Ia lower angles for resting against the wall or wall the four Low angle ¬ The (No.1), of any appropriate material, are shaped with a width and thickness, such that they withstand the stresses generated during the normal use of the ladder, since most of the effort is concentrated there. The adjustment of said adjustable clamping mechanisms will be made with a screw and a nut placed in the perforations (No.3) and (No.28) coinciding with the angles (No.1), which in the example of practical embodiment represented in The figures are square angles with a screw and nut but the adjustable mechanism and shape of arms can vary without affecting the essence of the present invention.

En dichos ángulos (No.1) que comprenden cojinete (No.2) se comprenden fijamente por cualquier medio de sujeción o montable y desmontable, un medio de soporte lateral (No.4) que se proyectan infe- riormente, conformados por dos soportes laterales (No.4) verticales y en forma paralela con una ranura con inserto (No.7) en Ia cara interna correspondiente y unos rieles guías (No.9), dispuestos en cada uno de los ángulos internos e insertas unas proyecciones laterales de un peldaño o barra (No. 12) denominadas ejes (No. 13) y guías (No. 14); una barra transversal hueca (No.5), dispuesta en los extremos superiores de dichos soportes laterales (No.4), con un hueco en Ia parte inicial y final en Ia cara inferior, que va montable y desmontable por tomillos con tuercas o cualquier otro medio de sujeción idóneo, en forma coincidente con el hueco de dicha barra transversal (No.5) y el hueco del extremo superior de dichos soportes laterales (No.4) y un hueco en Ia parte central en forma coincidente para que se acople y fije, por soldadura o cualquier medio de sujeción idóneo o preferentemente montable y desmontable, un eje guía o barra transversal vertical (No.8). Dicha barra transversal (No.5) lleva un hueco, preferentemente en forma rectangular, con una ceja en forma periférica que sirve para que se acople y fije, por cualquier medio de sujeción idóneo, una pieza (No.30) que puede ser de metal o cual- quier material resistente con propiedades mecánicas apropiadas, formada por una caja, su cara inferior lleva un hueco e internamente lleva un tubo central transversal redondo, que va fijo, por soldadura o cualquier medio de sujeción idóneo, por sus extremos a dichos costados internos de dicha caja (No.30) y en Ia parte superior longitudinal de dicho tubo transversal horizontal va fija, por abrazadera o cualquier medio de sujeción idóneo que puede ser de metal o cualquier material resistente, Ia cara superior de dicha caja (No.30) por Ia parte central e inferior, para que tenga libertad de movimiento mostrando Ia mitad de Ia cara superior hacia abajo y Ia otra mitad hacia arriba cuando se encuentre en desequilibrio; en Ia cara inferior lleva un hueco y se inserta y va fijo, por un accesorio de sujeción idóneo, un alambre tensado que va inserto por dicho eje guía (No.8) y su extremo opuesto va fijo, por un accesorio de su- jeción idóneo, a uno de los lados de Ia cara superior de otra pieza (No.30) dispuesta en dicha barra con los extremos en forma de escuadra (No.29)' dispuesta en Ia parte inferior de dicho eje guía (No.8) dispuesto entre las barras transversales (Nos.5 y 6) dispuestas en los extremos superiores de dichos soportes laterales (No.4) para control de peldaño pasivo; una barra transversal (No.6) hueca que se proyecta en los extremos inferiores de dichos soportes laterales (No.4) con un hueco en Ia cara superior, al- inicio y al final, en forma coincidente con el hueco de dicha barra transversal (No.6) y el hueco del extremo inferior de dichos soportes laterales (No.4) las cuales pueden ser de cualquier material resistente con propiedades mecánicas apropiadas, dicha barra transversal superior (No.6) lleva un hueco en fa parte central para que se fije, por soldadura o cualquier medio de sujeción idóneo, en forma coincidente con otro hueco de dicho eje guía (No.8), dicho eje guía (No.8), el cual lleva el extremo superior sobresa- líente de dicha barra transversal (No.5) además, lleva en Ia cara interna un hueco con ceja para que se fije otra pieza (No.30) que va fija, por cualquier medio de sujeción idóneo, y en Ia cara inferior lleva un hueco que se inserta y va fijo, por un accesorio de sujeción idóneo, un alambre tensado que va inserto por dicho eje guía (No.8) y su extremo opuesto va fijo, por un accesorio dé sujeción idóneo, a uno de los • lados de Ia barra de dicha pieza (No.30) central de dicha barra con los extremos en forma de escuadra (No. 29) dispuesta en Ia parte superior de dicho eje guía (No.8) que al deslizar una parte de Ia superficie de dicha pieza (No.30) destrabará a dicho gancho (No.37) para control de movimiento de peldaño cuando Ia estructura está inactiva. Dichas barras transversales (Nos.δy 6) dispuestas en los extremos de dichos soportes laterales (No.4) y dicho eje guía (No.8) cooperan para el mecanismo de ascenso y/o descenso a través de aire.In said angles (No.1) comprising a bearing (No.2), they are fixedly understood by any means of fastening or mountable and removable, a lateral support means (No.4) that are projected below, formed by two supports lateral (No.4) vertical and in parallel with a slot with insert (No.7) in the corresponding internal face and guide rails (No.9), arranged in each of the internal angles and insert some lateral projections of a step or bar (No. 12) called shafts (No. 13) and guides (No. 14); a hollow crossbar (No.5), arranged at the upper ends of said lateral supports (No.4), with a gap in the initial and final part in the lower face, which is mountable and removable by bolts with nuts or any another suitable fastening means, in a manner coinciding with the hollow of said crossbar (No.5) and the hollow of the upper end of said lateral supports (No.4) and a hollow in the central part in a coincident manner so as to fit and fix, by welding or any suitable or preferably mountable and removable fastening means, a guide shaft or vertical crossbar (No.8). Said transverse bar (No.5) has a hollow, preferably rectangular, with a peripheral eyebrow that serves to fit and fix, by any suitable means of attachment, a piece (No.30) that can be of metal or any resistant material with appropriate mechanical properties, formed by a box, its lower face has a hollow and internally it carries a round central transverse tube, which is fixed, by welding or any suitable means of attachment, at its ends to said internal sides of said box (No. 30) and in the longitudinal upper part of said horizontal transverse tube is fixed, by clamp or any suitable fastening means that can be of metal or any resistant material, the upper face of said box (No. 30) by the central and lower part, so that it has freedom of movement showing half of the upper face down and the other half up when it is in imbalance; on the lower face it carries a gap and is inserted and fixed, by an appropriate fastening accessory, a tensioned wire that is inserted by said guide shaft (No.8) and its opposite end is fixed, by a fastening accessory suitable, on one of the sides of the upper face of another piece (No.30) arranged in said bar with the square-shaped ends (No.29) ' arranged in the lower part of said guide axis (No.8) disposed between the crossbars (Nos. 5 and 6) arranged at the upper ends of said lateral supports (No.4) for passive step control; a hollow crossbar (No.6) projecting at the lower ends of said lateral supports (No.4) with a recess in the upper face, at the beginning and at the end, in a manner coinciding with the recess of said transverse bar (No.6) and the hollow of the lower end of said lateral supports (No.4) which can be of any resistant material with appropriate mechanical properties, said upper transverse bar (No.6) has a hollow in the central part for to be fixed, by welding or any suitable fastening means, in a manner coincident with another hollow of said guide axis (No.8), said guide axis (No.8), which carries the protruding upper end of said bar Transversal (No.5) also has a hollow with eyebrow on the inner face so that another piece is fixed (No. 30) that is fixed, by any suitable means of support, and on the lower face it has a hollow that is inserted and it is fixed, by a suitable clamping accessory, a tensioned wire that is inserted p or said guide axis (No.8) and its opposite end is fixed, by an accessory of suitable clamping, to one of the • sides of the bar of said central piece (No.30) of said bar with the ends in the form of squad (No. 29) arranged on the upper part of said guide shaft (No.8) that when sliding a part of the surface of said piece (No.30) will unlock said hook (No.37) for control of step movement when the structure It is inactive. Said crossbars (Nos. 6 and 6) arranged at the ends of said lateral supports (No.4) and said guide axis (No.8) cooperate for the ascent and / or descent mechanism through air.

Dicho eje guía (No.8) lleva en Ia parte inferior una barra con los extremos en forma de escuadra (No.29) fija, por soldadura o cualquier medio de sujeción idóneo y que puede ser de metal o de cualquier material resistente con propiedades mecánicas apropiadas, que lleva en Ia parte central un hueco donde se inserta una pieza (No.30) y dicha cara superior quedará suspendida en equilibrio en dicho hueco central para que al estar en desequilibrio, en Ia parte que descienda se insertará un gancho (No.37) como seguro para control de movimiento de peldaño o barra. Dicho eje guía (No.8) lleva en Ia parte superior y abajo de dicha inclinación hacia el exterior fija, por soldadura o cualquier otro medio de sujeción idóneo, y otra barra transversal con los extremos en forma de escua- dra (No.29) con una pieza (No.30) interna para que dicha tapa o barra quede suspendida en equilibrio en dicho hueco central para que al estar en desequilibrio, en Ia parte que descienda se insertará un gancho (No.37) como seguro para control de movimiento de peldaño o barra.Said guide axis (No.8) carries a bar with the ends in the form of a square (No.29) fixed, by welding or any suitable fastening means and that can be made of metal or any resistant material with properties appropriate mechanics, which has a hollow in the central part where a piece is inserted (No.30) and said upper face will be suspended in equilibrium in said central hole so that when in imbalance, in the part that descends a hook (No.37) will be inserted as a safe for control of movement of step or bar. Said guide axis (No.8) carries on the upper and lower part of said fixed outward inclination, by welding or any other suitable fastening means, and another transverse bar with the squared-shaped ends (No.29 ) with an internal part (No.30) so that said cover or bar is suspended in equilibrium in said central hole so that when it is in imbalance, in the part that descends a hook (No.37) will be inserted as a safety control step or bar movement.

Dichos soportes laterales (No.4) llevan un medio de refuerzo o barra (No.34) con los extremos en forma de escuadra preferentemente en Ia parte superior y otra en ¡a inferior fijas, por remaches o cualquier medio de sujeción idóneo y/o montables y desmontables y pueden ser metálicas o de cualquier material resistente y propiedades mecánicas apropiadas, que sirven para mantener rígida a dicha escalera y de apoyo contra Ia pared o muro.Said lateral supports (No.4) carry a reinforcement means or bar (No.34) with the square-shaped ends preferably in the upper part and another in the lower part fixed, by rivets or any suitable fastening means and / or mountable and removable and can be metallic or of any resistant material and appropriate mechanical properties, which serve to keep said ladder rigid and support against the wall or wall.

Haciendo referencia a Ia figura 2 es una vista en perspectiva de dichos soportes laterales mostrando un riel guía y tubo. Dicho medio de soportes laterales se conforma por dos soportes laterales (No.4) dispuestos en forma paralela y vertical, y un eje guía (No.8), que llevan una ranura central con dicho injerto (No.7) de material friccionante y fijo, por adhesivo o cualquier medio de sujeción idóneo en Ia cara interna, en Ia cual van insertos dichos ejes (No. 13) y dichas guías (No".14) de un peldaño deslizable (No.12) para control en deslizamiento; cuatro rieles guías (No.9) longitudinales dispuestos en los ángulos internos de dichos soportes laterales (No.4) y fijos, por soldadura o cualquier medio de sujeción idóneo, que sirve de guía a dicho peldaño en deslizamiento; llevan internamente un tubo (No.10) con un resorte (Nos.21 y 22) externo desde Ia parte central de dicha barra (No.5) a Ia parte central de dicha barra (No.6), en tanto dicho tubo (No.10) dispuesto en dicho eje guía (No.8) lleva una abertura delimitada por el ancho de dicho hilo (No.32) y dicho resorte va externo, solo en Ia parte superior, de dicho tubo (No.10) los cuales cooperan para el mecanismo de ascenso y/o descenso de dicho peldaño (No.12), tanto dichos soportes laterales (No.4), riel guía (Ho.9), resortes (Nos 21 y 22) y tubo (No.10) pueden ser metal o de cualquier material resistente con propiedades mecánicas apropiadas, que en el ejemplo de realización práctico dicho soporte lateral (No.4) tiene forma de prisma rectangular pero es. variante y su forma, número y disposición de sus rieles (No.9) puede variar y dicho tubo (No.10) es circular pero su forma puede variar sin que por ello afecte Ia esencia de Ia presente invención, y en Ia parte superior lleva una inclinación hacia el exterior para permitir, con espacio, el libre deslizamiento de dicho peldaño o barra (No.12) .Referring to Figure 2 is a perspective view of said lateral supports showing a guide rail and tube. Said lateral support means is formed by two lateral supports (No.4) arranged in parallel and vertical form, and a guide axis (No.8), which have a central groove with said graft (No.7) of friction material and fixed, by adhesive or any suitable fastening means on the internal face, in which said shafts (No. 13) and said guides (No " .14) of a sliding step (No.12) for sliding control are inserted; four longitudinal guide rails (No.9) arranged at the internal angles of said lateral supports (No.4) and fixed, by welding or any suitable fastening means, which serves as a guide to said sliding step; they internally carry a tube ( No.10) with a spring (Nos.21 and 22) external from the central part of said bar (No.5) to the central part of said bar (No.6), as long as said tube (No.10) arranged in said guide axis (No.8) it carries an opening delimited by the width of said thread (No.32) and said spring goes external, only in Ia upper part of said tube (No.10) which cooperate for the mechanism of ascent and / or descent of said step (No.12), both said lateral supports (No.4), guide rail (Ho.9), Springs (Nos. 21 and 22) and tube (No. 10) can be metal or of any resistant material with appropriate mechanical properties, which in the practical embodiment example said lateral support (No.4) has a rectangular prism shape but is. variant and its shape, number and arrangement of its rails (No.9) can vary and said tube (No.10) is circular but its shape can vary without affecting the essence of the present invention, and in the upper part it has an outward inclination to allow, with space, the free sliding of said step or bar (No.12).

Haciendo referencia a Ia figura 3 es una vista en perspectiva de dicho eje guía mostrando un riel guía. Dicho riel guía (No.8) vertical dispuesto en Ia parte central de entre dichas barras (No.5 y 6) dispuestas en los extremos superiores e inferiores de dichos soportes laterales (No.4) respectivamente, que puede ser de metal o cualquier material idóneo y fijo por cualquier medio de sujeción idóneo y preferen- temente montable y desmontable para el servicio de Ia escalera, lleva una ranura a Ia altura de dichos soportes laterales (No.4) con injerto (No.7) que puede ser de material friccionante o cualquier otro material con propiedades mecánicas apropiadas, longitudinal fijo, por adhesivo o cualquier medio de sujeción idóneo, y un riel guía (No.11) longitudinal dispuestos en Ia cara interna y fijo, por soldadura o cualquier medio de sujeción idóneo y que puede ser de metal o cualquier material resistente con propiedades mecánicas apropiadas, que lleva insertas dichos ejes (No.13) y dichas guías (No.14) del costado de dicho peldaño deslizable (No.12) el cual lleva en su extremo inferior forma de escuadra para alejarse del espacio de recorrido de dicho peldaño (No.12) y lleva internamente dicho tubo (No.10) con resoné, como prolongación de dicho tubo (No. 10) de Ia parte inferior de dichos soportes laterales (No.4), que coopera para el deslizamiento de dicho peldaño (No.12) que en el ejemplo dicho eje guía (No.8) tiene forma de prisma rectangular pero su forma es variante y Ia disposición y forma de sus rieles (No.11) puede variar sin que por ello afecte Ia esencia de Ia presente invención, además en su cara superior lleva un hueco cubierto con una tapa (No.27) que tiene movimiento en si misma, por bisagra o cualquier medio de sujeción idóneo, para acceder a su interior.Referring to Figure 3 is a perspective view of said guide axis showing a guide rail. Said vertical guide rail (No.8) arranged in the central part between said bars (No.5 and 6) arranged in the upper and lower ends of said lateral supports (No.4) respectively, which can be made of metal or any suitable and fixed material by any suitable and preferably mountable and removable fastening means for the service of the ladder, it has a groove at the height of said lateral supports (No.4) with graft (No.7) that can be of frictional material or any other material with appropriate mechanical properties, fixed longitudinal, by adhesive or any suitable means of fastening, and a longitudinal guide rail (No.11) arranged on the internal and fixed face, by welding or any suitable means of fastening and which can be made of metal or any resistant material with appropriate mechanical properties, which includes said shafts (No.13) and said guides (No.14) on the side of said sliding step (No.12) which has at its end lower square shape to move away from the travel space of said step (No.12) and internally carries said tube (No.10) with resonance, as an extension of said tube (No. 10) of the lower part of said lateral supports (No.4), which cooperates for the sliding of said step (No.12) which in the example said guide axis (No.8) has a rectangular prism shape but its shape is variant and the arrangement and shape of its rails (No.11) can vary without affecting the essence of the present invention, also on its upper face it has a hole covered with a lid (No.27) that has movement in itself same, by hinge or any suitable means of support, to access its interior.

Haciendo referencia a Ia figura 4 muestra una vista frontal de un medio de peldaño deslizable. Dicho medio de peldaño o barra deslizable está formado por un cuerpo central con proyecciones laterales denominadas ejes (No.13) y guías (No.14) laterales y otra dispuesta en el costado exterior, que van insertas en dichas ranuras con injerto (No.7) y dichos rieles (No.9) de dichos soportes laterales (No.4), Ia dispuesta a un costado va inserta en dicho riel (No.11) de dicho eje guía (No.8), que pueden ser me- tal o de cualquier material resistente con propieda- des mecánicas apropiadas, y llevar una cubierta de material friccionante y/o amortiguante para evitar ruidos, que sirven de guía a dicho peldaño (No.12) en deslizamiento. Dichas guías (No.13) laterales presentan forma cuadrada y en el exterior de sus ángulos lleva unas proyecciones o guías (No.15) continuas que son las que se insertan en dichos rieles (No.9) como guías a dicho peldaño (No.12) en deslizamiento, además lleva en dicha guía (No.14) lateral un hueco semi-periférico y semi-circular (No.16) para que se inserte dicho tubo (No.10), con material de amortiguamiento para evitar ruidos en deslizamiento que en el ejemplo práctico muestra dichas guías en forma cuadrada y hueco en forma semi-circular (No.16) pero es variable sin que por ello afecte Ia esencia de Ia presente invención. En el costado de dicho peldaño (No.12) que presenta un eje (No.13) y guía (No.14) insertas en dicho eje guía (No.8) para control en deslizamiento y pueden ser de metal o cualquier otro material con propiedades mecánicas apropiadas y llevar una cubierta de material amortiguante para evitar ruidos en deslizamiento.Referring to Figure 4 shows a front view of a sliding step means. Said step means or sliding bar is formed by a central body with lateral projections called shafts (No.13) and lateral guides (No.14) and another arranged on the outer side, which are inserted into said grooves with graft (No. 7) and said rails (No.9) of said lateral supports (No.4), the one arranged on one side is inserted in said rail (No.11) of said guide axis (No.8), which may be less such or of any resistant material with appropriate mechanical properties, and carrying a cover of friction and / or damping material to avoid noise, which serve as a guide to said step (No.12) in sliding. Said lateral guides (No.13) have a square shape and on the outside of their angles it has continuous projections or guides (No.15) that are those that are inserted in said rails (No.9) as guides to said step (No .12) in sliding, it also carries in said lateral guide (No.14) a semi-peripheral and semi-circular hollow (No.16) so that said tube (No.10) is inserted, with damping material to avoid noise in slide that in the practical example shows said guides in square and hollow form in semi-circular form (No.16) but is variable without thereby affecting the essence of the present invention. On the side of said step (No.12) which has an axis (No.13) and guide (No.14) inserted in said guide axis (No.8) for sliding control and can be made of metal or any other material with appropriate mechanical properties and wear a cover of damping material to avoid slip noise.

Haciendo referencia a Ia figura 5 muestra una vista inferior de un medio de peldaño o barra con un me- canismo de control de movimiento por fricción con un corte en el tubo para mostrar el resorte interno.Referring to Figure 5 shows a bottom view of a step or bar means with a friction motion control mechanism with a cut in the tube to show the internal spring.

Dicho medio de peldaño o barra deslizable tiene un cuerpo central unos ejes (No.13) y unas guíasSaid step means or sliding bar has a central body, axes (No.13) and guides

(No.14) las cuales a su vez llevan en cada ángulo exterior una guía (No.15) continua que pueden ser de metal o cualquier material con propiedades mecánicas adecuadas, insertas en dicha ranura con dicho injerto (No.7) en dichos rieles (No.9) de dichos soportes laterales (No.4), y dicho eje (No.13) y dicha guía (No.14) de un costado de. dicho peldaño (No.12) va inserta en dicha ranura -con injerto (No.7) en dicho eje guía (No.8) al que se acopla operablemente un mecanismo de control de movimiento por fricción formado por unos elementos denominados resorte (No.17), que va inserto en un tubo (No.20), soporte de sujeción o caja (No.18) que lleva inserto un cojinete (No.19) de material friccionante con dos ranuras en Ia cara extema sobresaliente para que se acoplen adecuadamente con Ia superficie de Ia cara interna de dichos soportes laterales (No.4) y se friccionen en contacto constante en deslizamiento para control en deslizamiento.(No.14) which in turn carry at each outer angle a continuous guide (No.15) that can be made of metal or any material with suitable mechanical properties, inserted in said groove with said graft (No.7) in said rails (No.9) of said lateral supports (No.4), and said axis (No.13) and said guide (No.14) of a side of. said step (No.12) is inserted into said groove -with graft (No.7) on said guide shaft (No.8) to which a friction motion control mechanism formed by elements called spring (No) is operably coupled. .17), which is inserted in a tube (No.20), support bracket or box (No.18) that carries a bearing (No.19) of friction material with two grooves in the protruding external face so that it adequately couple with the surface of the internal face of said lateral supports (No.4) and friction in constant contact in sliding for control in sliding.

Haciendo referencia a Ia figura 6 ilustra una corte frontal de un peldaño deslizable que a un costado lleva proyectado un medio de agarradera. Dicho medio de agarradera está formado por una barra hueca (No.36), que puede ser de metal o cualquier mate- nal resistente con propiedades mecánicas apro¬ piadas, que lleva en uno de los extremos una proyección perpendicular con dos huecos coincidentes con el hueco de dicha barra (No.36) y su extremo opuesto va fijo, a un costado.de dicho peldaño desli- zable (No.12) que puede ser de metal o de cualquier otro material resistente con propiedades mecáni- cas apropiadas; unos hilos internos en dicha barra (No.36), dos hilos tensados y de material resistente, cuyos extremos inferiores llevan fijos, por un accesorio de fijación o cualquier medio de sujeción idóneo; un gancho (No.37) el extremo opuesto fijo, por su accesorio de fijación o cualquier otro medio de sujeción idóneo a una caja (No.35) similar a Ia pieza (No.30) para que al oprimir un lado de Ia superficie superior dicho hilo se deslice hacia abajo y sobresalga dicho gancho (No.37) y se trabará con Ia pieza (No.30) dispuesta en dicha barra (No.29) como seguro cuando Ia escalera esté en servicio.Referring to FIG. 6, it illustrates a frontal section of a sliding step that has a handle means projected on one side. Said handle means is formed by a hollow bar (No.36), which may be of metal or nal resistant mate- with mechanical properties appro priate ¬ which carries one end a perpendicular projection with two mating recesses in the hollow of said rod (No.36) and its opposite end is fixed, at the side of said sliding step (No.12) which can be made of metal or any other resistant material with appropriate mechanical properties; internal threads in said bar (No.36), two tensioned threads and of resistant material, whose lower ends are fixed, by a fixing accessory or any suitable fastening means; a hook (No.37) the opposite end fixed, by its attachment or any other suitable means of attachment to a box (No.35) similar to the piece (No.30) so that when pressing a side of the surface said upper thread slides down and said hook protrudes (No.37) and will lock with the piece (No.30) arranged in said bar (No.29) as safe when the ladder is in service.

Haciendo referencia a Ia figura 7 es un corte frontal de dichos soportes laterales mostrándose un mecanismo de ascenso y/o descenso de peldaños y/o barras a través de aire. Dicho medio de ascenso y/o descenso a través de aire esta conformado por un tubo (No.10) dispuesto internamente a Io largo de dichos soportes laterales (No.4), en ambas barras (Nos.5 y 6), dispuestas en los extremos superiores e inferiores respectivamente de dichos soportes laterales (No.4), y fusionarse en uno solo en Ia parte inferior de dicho eje guía (No.8) hasta Ia parte superior; unos resortes (No.21) dos resortes, con resistencia adecuada, insertos en el exterior de dichos tubos (No.10) por los extremos superiores van fijos, por su accesorio de sujeción como gancho o cualquier medio de sujeción idóneo, a unas placas (Nos.23) verticales que van fijas, por soldadura o cualquier medio de sujeción idóneo y de metal o cualquier material resistente y propiedades mecánicas apropiadas, en Ia parte central, una en cada lado, con el hueco de coincidencia de dicha barra (No.5) dispuesta en los extremos superiores de dichos soportes laterales (No.4) y el hueco de dicho eje guía (No.8), los extremos opuestos con accesorios de sujeción como gancho o cualquier otro accesorio idóneo, van fijos, por cualquier medio de sujeción idó- neo, en Ia parte superior de dicha guía (No.14) lateral de dicho peldaño (No.12) para que se deslicen hacia abajo cuando dicho peldaño (No.12) se requiera colocarlo en posición inicial de ascenso, y se deslizará hacia arriba cuando dicho peldaño (No.12) se deslice en descenso; dos resortes (Nos.22), con resistencia adecuada, insertos en el exterior de dicho tubo (No.10) cuyo extremo superior van fijos, por un accesorio de sujeción como gancho o cualquier medio de sujeción idóneo, en Ia parte inferior de dicha guía (No.14), su extremo opuesto van fijos, con accesorio de sujeción como gancho o cual¬ quier otro idóneo, a una- placa (No.24) vertical que va fija, por soldadura o cualquier medio de sujeción idóneo y que puede ser de metal o cualquier material resistente con propiedades mecánicas apropiadas, dispuestas en Ia parte central de dicha barra (No.6) localizada en los extremos inferiores de dichos soportes laterales (No.4), una en cada lado, del hueco coincidentes de dicha barra (No.6) con el hueco de dicho eje guía (No.8), además dichas placas (No.24) llevan un hueco en su parte central para que se inserte dicho tubo (No.10) y un hilo (No.33), que sirven para que se deslicen dichos resortes (No.22) hacia arriba cuando dicho peldaño (No.12) requiera ser colocarlo en posición inicial de descenso y se deslizará hacia abajo cuando dicho peldaño (No.12) se deslice en ascenso y otro a Ia altura de Ia última sección de un tubo telescópico (No. 31); un tubo telescópico (No.31) formado por varias secciones, que al desplegarse su longitud llega hasta Ia parte inferior de dicho eje guía (No.8), inserto en dicho tubo (No.10) y en dicho eje guía (No.8) que va fijo, por soldadura o cualquier medio de sujeción idóneo y que puede ser de metal o cualquier material resistente con propiedades mecánicas apropiadas, por su parte de mayor dimensión, en Ia parte superior de dicho eje guía (No.8) el cual lleva internamente un saco (No.25), cuyo extremo lleva un accesorio de sujeción como un aro para evitar que el aire se disperse en forma no deseada, cuyo extremo lleva un accesorio de sujeción idóneo fijo, por cualquier medio de sujeción idóneo y que puede ser de material plástico o de cualquier material con propiedades mecánicas adecuadas, a Ia cara superior y parte inferior de dicho eje guía (No.8), con una abertura con una válvula (No.26) Ia cual va acoplada al hueco dispuesto en Ia cara superior de dicho eje guía (No.8) y cubier- ta por dicha tapa (No.27) para que el usuario tenga acceso a dicha válvula (No.26) y regular el aire que va a presión en dicho saco (No.25), el cual presenta Ia forma de dicho tubo (No.10) al dividirse en dos, al llegar a Ia parte inferior y tener Ia capacidad de extenderse hasta Ia parte superior de dichos soportes laterales (No.4), que puede ser de material plástico o cualquier otro material con propiedades mecánicas apropiadas, cuyos extremos opuesto llevan un medio de sujeción como un aro o cualquier otro idó- neo, que va fijo por presión o cualquier medio de sujeción idóneo, a Ia parte inferior de dicha guía lateral (No.14) de dicho peldaño (No.12) y en el interior lleva aire comprimido para que al desplegarse dicho tubo telescópico (No.31) las secciones se deslicen y comprima en esa parte Dicho saco (No.25) y desplace el aire a los extremos para que ejerza presión por debajo de dichas guías laterales (No.14) de dichos peldaños (No.12) y los deslice hacia arriba para Ia función de ascenso.Referring to Figure 7 is a front cut of said lateral supports showing a mechanism of ascent and / or descent of steps and / or bars through air. Said means of ascent and / or descent through air is formed by a tube (No. 10) disposed internally along said lateral supports (No.4), on both bars (Nos. 5 and 6), arranged in the upper and lower ends respectively of said lateral supports (No.4), and merged into only one in the lower part of said guide axis (No.8) to the upper part; springs (No.21) two springs, with adequate resistance, inserted outside said tubes (No.10) by the upper ends are fixed, by its attachment as a hook or any suitable means of attachment, to plates (Nos. 23) verticals that are fixed, by welding or any suitable fastening means and of metal or any resistant material and appropriate mechanical properties, in the central part, one on each side, with the coincidence gap of said bar (No .5) arranged at the upper ends of said lateral supports (No.4) and the hollow of said guide axis (No.8), the opposite ends with fastening accessories such as hook or any other suitable accessory, are fixed, by any suitable clamping means, in the upper part of said lateral guide (No. 14) of said step (No.12) so that they slide down when said step (No.12) is required to place it in the initial ascent position , and will slide up when d icho step (No.12) slide down; two springs (Nos. 22), with adequate resistance, inserted outside said tube (No. 10) whose upper end is fixed, by a fastening accessory such as hook or any suitable means of attachment, in the lower part of said guide (No.14), the opposite end are fixed with the fixture as a hook or other suitable WANT ¬ which, to a- plate (No.24) fixed vertical goes by welding or any suitable means of fastening and which can be made of metal or any resistant material with appropriate mechanical properties, arranged in the central part of said bar (No.6) located at the lower ends of said lateral supports (No.4), one on each side, of the coincident hole of said bar (No.6) with the hollow of said guide axis (No.8), in addition said plates (No.24) have a hollow in their central part so that said tube (No.10) and a thread are inserted (No.33), which serve to slide said springs (No.22) up when said step (No.12) requires to be placed in the initial descent position and will slide down when said step (No.12) slide up and another at the height of the last section of a telescopic tube (No. 31); a telescopic tube (No.31) formed by several sections, which when deployed its length reaches the lower part of said guide axis (No.8), inserted in said tube (No.10) and in said guide axis (No. 8) that it is fixed, by welding or any suitable fastening means and that it can be made of metal or any resistant material with appropriate mechanical properties, for its part of greater dimension, in the upper part of said guide axis (No.8) the which carries a sack internally (No.25), whose end has a clamping accessory such as a ring to prevent air from spreading in an unwanted way, whose end has a suitable suitable clamping accessory, by any suitable clamping means and which may be of plastic material or of any material with suitable mechanical properties, to the upper face and lower part of said guide shaft (No.8), with an opening with a valve (No.26) which is coupled to the arranged hole on the upper face of said guide axis (No.8) and cu opened by said cover (No.27) so that the user has access to said valve (No.26) and regulates the air under pressure in said sack (No.25), which has the shape of said tube (No. 10) when divided into two, upon reaching the lower part and having the ability to extend to the upper part of said lateral supports (No.4), which can be of plastic material or any other material with appropriate mechanical properties , whose opposite ends carry a clamping means such as a ring or any other suitable, which is fixed by pressure or any suitable clamping means, to the lower part of said lateral guide (No.14) of said step (No. 12) and inside it carries compressed air so that when said telescopic tube is deployed (No.31) the sections slide and compress in that part Said bag (No.25) and move the air to the ends so that it exerts pressure below of said lateral guides (No.14) of said steps (No.12) and slide them upwards for the ascent function.

Dicho tubo telescópico (No.31) lleva en su última sección tubular, Ia más pequeña de diámetro, en su parte inferior fija, por lazada o por cualquier medio de sujeción idóneo, el extremo de dos hilos (No.33), de lona o cualquier otro material con propiedades mecánicas apropiadas, que va interno en dicho tubo (No.10) y extenderse a Io largo y hacia abajo cuyo extremo opuesto va fijo, por lazada o cualquier medio de sujeción idóneo al extremo inferior de dicho resorte (No.21) de igual forma lleva dicho hilo (No.33) del lado opuesto para que al deslizarse dicho resorte (No.21) arrastre dicho hilo (No.33) y despliegue dicho tubo telescópico (No.31), en tanto lleva un hilo (No.32) de lona o cualquier oiro material con propiedades mecánicas apropiadas, que va interno en dicho tubo (No.10) y extenderse a Io largo y hacia arriba cuyo extremo opuesto va fijo por lazada o cualquier medio de sujeción idóneo al extremo superior, de dicho resorte (No.22) de igual forma lleva dicho hilo (No.32) del lado opuesto para que al deslizarse hacia abajo dicho resorte (No.22) arrastre dicho hilo (No.33) y se inserten adecuadamente las secciones de dicho tubo telescópico (No.31) hasta compactarse y el aire se desplace hacia arriba sobre dicho tubo (No.10) dispuesto internamente en dichas barra transversal (No.6) y eje guía (No.8).Said telescopic tube (No.31) carries in its last tubular section, the smallest diameter, in its fixed lower part, by loop or by any suitable means of attachment, the two-wire end (No.33), of canvas or any other material with appropriate mechanical properties, which goes internally in said tube (No. 10) and extends along and down whose opposite end is fixed, by lacing or any suitable fastening means to the lower end of said spring (No .21) in the same way it carries said thread (No.33) on the opposite side so that when said spring slides (No.21) it drags said thread (No.33) and deploys said telescopic tube (No.31), while carrying a thread (No.32) of canvas or any material material with appropriate mechanical properties, which goes internally in said tube (No.10) and extends long and upwards, the opposite end of which is fixed by lacing or any suitable fastening means to the upper end, of said spring (No.22) in the same way it carries said thread or (No.32) on the opposite side so that when said spring slides down (No.22) drag said thread (No.33) and the sections of said telescopic tube (No.31) are properly inserted until compacted and the air it moves upwards on said tube (No.10) disposed internally on said crossbar (No.6) and guide shaft (No.8).

Para entender el funcionamiento de dicha escalera sujetable con peldaño deslizable se requiere ver principalmente las figuras 1, 6 y 7. Lo primero será fijar los ángulos (No.1) al muro. Cuando se requiera ascender el usuario se posicionará en dicho peldaño (No.12), que se encontrará en Ia parte inferior de Ia estructura, y actuará un lado de Ia pieza (No.35) dispuesta en Ia parte superior de dicha agarradera y dicho gancho (No.37) se destrabará y actuará dicho resorte (No.21) deslizándose hacia arriba y arrastrará las secciones de dicho tubo telescópico (No.31) el cual irá comprimiendo dicho saco (No.25) dispersando el aire y haciendo presión en Ia parte inferior de dichas guías laterales (No.14) de dichos pel- daños o barras (No.12) y Io deslizará en ascenso y cuando llegue al extremo superior de dichos soportes laterales (No.4) el usuario oprimirá el lado opuesto de dicha caja de control (No.35) dispuesta En Ia parte superior de dicha agarradera (No.36) para que el gancho correspondiente se inserte en dicha pieza (No.30) ubicada en dicha barra (No.29) dispuesta Ia parte superior de dicho eje guía (No.8). Cuando se requiera descender por dicha escalera el usuario se posicioñará en dicho peldaño o barra (No.12) y oprimirá un lado de Ia cara de Ia caja (No.35) y dicho gancho (No.37) se destrabará y dicho resorte se deslizará arrastrando, a través de dicho hilo (No.32), hacia arriba a las secciones de dicho tubo telescópico (No.3t) y el aire se dispersará en el espacio inicial que ocupara y dicho peldaño (No.12) descenderá con Ia carga del usuario.To understand the operation of said ladder that can be fastened with a sliding step, it is necessary to see mainly figures 1, 6 and 7. The first thing will be to fix the angles (No.1) to the wall. When it is required to ascend the user will be positioned on said step (No.12), which will be found in the lower part of the structure, and one side of the piece (No.35) arranged on the upper part of said handle and said hook (No.37) will unlock and actuate said spring (No.21) by sliding upwards and drag the sections of said telescopic tube (No.31) which will compress said sack (No.25) dispersing the air and pressing in the lower part of said lateral guides (No.14) of said dangers or bars (No.12) and it will slide upwards and when it reaches the upper end of said lateral supports (No.4) the user will press the side opposite of said control box (No.35) arranged in the upper part of said handle (No.36) so that the corresponding hook is inserted in said piece (No.30) located in said bar (No.29) arranged Ia upper part of said guide axis (No.8). When it is required to descend through said ladder, the user will position himself on said step or bar (No.12) and press one side of the face of the box (No.35) and said hook (No.37) will unlock and said spring will it will slide by dragging, through said thread (No.32), upwards to the sections of said telescopic tube (No.3t) and the air will disperse in the initial space it occupies and said step (No.12) will descend with Ia user load.

Cuando se requiera ascender y dicho peldaño (No.12) se encuentre ubicado en Ia parte superior de la estructura, el usuario actuará un lado de Ia superficie superior de dicha caja (No.30) dispuesta en Ia cara superior de dicha barra (No.6) dispuesta en los extremos inferiores de dichos soportes laterales (No.4), dicho hilo tensado jalará hacia abajo el lado opuesto de donde se encuentra dicho gancho (No.37) trabado en dicha pieza (No.30) dispuesta en dicha barra (No.29) y desenganche a dicho gancho (No.37) y dicho resorte (No.22) actúe arrastrando e insertando, a través de dicho hilo (No.32), a las secciones de dicho tubo telescópico (No31) y el aire se distribuya en el espacio correspondiente en dicho eje guía (No.8) y dicha barra transversal (No.6) dispuesta en los extremos inferiores de dichos soportes laterales (No.4).When it is required to ascend and said step (No.12) is located in the upper part of the structure, the user will act on one side of the upper surface of said box (No.30) arranged on the upper face of said bar (No .6) disposed at the lower ends of said lateral supports (No.4), said tensioned thread will pull down the opposite side of where said hook (No.37) locked in said piece (No.30) disposed in said bar (No.29) and unhook said hook (No.37) and said spring (No.22) act by dragging and inserting, through said thread (No.32), to the sections of said telescopic tube (No31) and the air is distributed in the corresponding space on said guide axis (No.8) and said crossbar (No.6) arranged at the lower ends of said lateral supports (No.4).

Cuando requiera descender y dicho peldaño (No.12) se encuentre ubicado en Ia parte inferior de Ia mencionada escalera el usuario actuará un lado de Ia superficie superior de dicha caja (No.30) dispuesta en la cara superior de dicha barra (No.5) dispuesta en los extremos superiores de dichos soportes laterales (No.4) dicho hilo tensado jalará hacia abajo el lado opuesto de dicha pieza (No.30) dispuesta en dicha barra (No.29) en Ia parte inferior de dicho eje guía (No.8) de donde se encuentra trabado dicho gancho (No.37) para desengancharlo y dicho resorte (No.21) se deslizará hacia arriba jalando a dicho hilo (No.33), a las secciones de dicho tubo telescópico (No31) hacia abajo para que se despliegue sobre dicho eje (No .8) y el aire se distribuirá en el espacio correspondiente en dicha barra transversal inferior (No.6) y dichos soportes laterales (No. 4) y presionará a dichas guías (No.14) laterales de dicho peldaño (No.12) y las deslizará hacía arriba.When it is necessary to descend and said step (No.12) is located in the lower part of said ladder the user will act a side of the upper surface of said box (No.30) arranged on the upper face of said bar (No. 5) disposed at the upper ends of said lateral supports (No.4) said tensioned wire will pull down the opposite side of said piece (No.30) arranged in said bar (No.29) in the lower part of said guide axis (No.8) from where said hook (No.37) is locked to unhook it and said spring (No.21) will slide upwards pulling said thread (No.33), to the sections of said telescopic tube (No31 ) downwards so that it is deployed on said axis (No .8) and the air will be distributed in the corresponding space in said lower crossbar (No.6) and said lateral supports (No. 4) and will press said guides (No .14) sides of said step (No.12) and slide them up.

El invento ha sido descrito suficientemente como para que una persona con conocimientos medios en la materia pueda reproducir y obtener los resultados que mencionamos en Ia presente invención debido a su simplicidad pero tiene Ia actividad inventiva por encontrarse fuera del estado de Ia técnica y ser de aplicación industrial. Sin embargo, cualquier persona hábil en el campo de Ia técnica que compete el presente invento puede ser capaz de hacer modificaciones no descritas en Ia presente solicitud, no obstante, si para Ia aplicación de estas modificaciones en una estructura determinada o en el proceso de manufactura del mismo, se requiere de Ia materia reclamada en las siguientes reivindicaciones, dichas estructuras deberán ser comprendidas dentro del alcance d Ia presente invención. The invention has been described sufficiently so that a person with average knowledge in the field can reproduce and obtain the results mentioned in the present invention due to its simplicity but it has the inventive activity for being outside the state of the art and being of industrial application. However, any skilled person in the field of the technique of the present invention may be able to make modifications not described in the present application, however, if for the application of these modifications in a given structure or in the manufacturing process thereof, the matter claimed in the following claims is required, said structures must be included within the scope of the present invention.

Claims

REIVINDICACIONESHabiendo descrito suficientemente mi invención, se reclama como de mi propiedad Io contenido en las siguientes reivindicaciones: CLAIMS Having sufficiently described my invention, it is claimed as my property contained in the following claims: 1.- Una escalera sujetable con peldaño deslizable del tipo de soportes laterales con peldaños transversales que comprende un medio de sujeción ajustable al área donde se va a fijar Ia escalera que consta de cuatro ángulos en forma de "L" y son acoplables en pares, y cada ángulo que queda al exterior com- prende cojinete se proyecta un medio de soporte lateral; caracterizado porque dicha escalera incluye un medio de soporte lateral formado por dos soportes laterales que adopta forma lineal, unidos mediante un elemento de refuerzo, cada uno de dichos soportes laterales teniendo una ranura central en su cara interna correspondiente, un inserto longitudinal friccionante y una serie de rieles guías longitudinales preferentemente en cada uno de los ángulos internos contando además fijo un tubo inserto con un resorte inserto externo que cooperan para el ascenso y/o descenso de un peldaño o barra; incluye una barra hueca que se fija de manera transversal sobre Ia parte superior de dichos soportes laterales y una barra hueca que se fija de manera transversal sobre Ia parte inferior de dichos soportes laterales contando internamente con un tubo que tiene inserto un resorte externo, dicha barra superior tiene en Ia parte central de su longitud un hueco en el cual se acopla e incluye un mecanismo de control de movi- miento de peldaño o barra a través de aire el cual se presenta en forma de un eje guía sobresaliente y su extremo opuesto se acopla a un hueco en Ia parte central de dicha barra inferior, dicho eje guía contando además con una ranura central, un injerto friccionante y un riel guía longitudinal én su cara interna correspondiente para control en deslizamiento de un peldaño o barra e incluye un tubo interno longitudinal, con un resorte inserto en forma externa solamente en Ia parte superior de dicho tubo para con- tar con fuerza adicional para ascender dicho peldaño mientras que en Ia parte interna se localizan dos hilos tensados longitudinales cuyos extremos se fijan a unas piezas ubicadas en dicho eje guía y en dichas barras transversales superior e inferior de dichos soportes laterales para control de movimiento de peldaño cuando Ia escalera esté pasiva, en dicho eje guía tiene inserto un tubo telescópico que tiene en Ia parte inferior un medio de sujeción o aro para evitar que el aire se distribuya en forma no deseada, que tiene interno un saco con aire com- primido los cuales cooperan para el deslizamien¬ to en ascenso y/o descenso de dicho peldaño o barra; dichos soportes laterales comprenden interna¬ mente un mecanismo tipo grúa para el ascenso y/o descenso de dicho peldaño o barra, consistente en dicho peldaño con libertad de movimiento con un recorrido máximo- de dichos soportes laterales, un medio de peldaño o barra que adopta forma variable, preferentemente formado por un cuerpo central con unos ejes sobresalientes laterales en cuyos extremos de éstos ejes lleva unas guías las cuales tienen cada una en sus ángulos externos una guía asimismo, en el costado externo lleva un eje con una guia siendo las guías las que se alojan en los riele guías de dichos soportes laterales y de dicho eje guía respectivamente siendo que cada una de dichas guías laterales de dicho peldaño insertas en dicho tubo ubicado en los soportes laterales y se fija un extremo de dichos resortes para que sean arrastradas en ascenso y/o descenso; incluye una agarradera fijo al costado extemo de dicho peldaño teniendo una barra hueca en forma de "T", un pieza de control, con Ia cara superior libertad de movimiento, dos hilos y dos ganchos como seguros para control de movimiento de dicho peldaño que al actuar trabará y destrabará a dicho peldaño o barra, cuando Ia escalera esté activa, dicho peldaño estando en primera instancia en Ia parte inferior de dicha pieza de control en dicha agarradera liberará dicho peldaño, sujeto con dicho gancho fijo con un hilo a dicha pieza al actuar entonces el resorte superior arrastrará hacia abajo a través de dicho hilo las secciones de dicho tubo telescópico el cual comprimirá a dicho saco y se distribuirá el aire hacia los extremos de dicho saco y empujará a dichas guías laterales de dicho peldaño en deslizamiento.1.- A ladder that can be fastened with a sliding step of the type of lateral supports with transverse rungs that includes a means of fastening that can be adjusted to the area where the ladder consisting of four "L" angles is to be fixed and can be attached in pairs and each angle that is outside includes a bearing, a lateral support means is projected; characterized in that said ladder includes a lateral support means formed by two lateral supports that adopt a linear shape, connected by means of a reinforcing element, each of said lateral supports having a central groove in its corresponding internal face, a frictional longitudinal insert and a series of longitudinal guide rails preferably in each of the internal angles, also having a fixed insert with an external insert spring cooperating for the ascent and / or descent of a step or bar; it includes a hollow bar that is fixed transversely on the upper part of said lateral supports and a hollow bar that is fixed transversely on the lower part of said lateral supports having a tube internally having an external spring, said bar The upper part has a hollow in the central part in which it engages and includes a mechanism for controlling the movement of the step or bar through the air, which is presented in the form of an outstanding guide axis and its opposite end is it engages a hollow in the central part of said lower bar, said guide shaft also having a central groove, a friction graft and a longitudinal guide rail in its corresponding internal face for sliding control of a step or bar and includes an internal tube longitudinal, with a spring inserted externally only in the upper part of said tube to have additional force to ascend said step or while in the internal part two longitudinal tensioned threads are located whose ends are fixed to parts located in said guide axis and in said upper and lower transverse bars of said lateral supports for control of step movement when the ladder is passive, in said guide shaft has a telescopic tube inserted that has a clamping means or ring in the lower part to prevent air from being distributed in a non- desired, having inner sack with air com- pressedair which cooperate for Slip On ¬ to rising and / or lowering of said rung or bar; said lateral supports comprise internal ¬ a type crane mechanism for ascent and / or descent of said rung or bar, said step consisting of free moving with maximum - path said side supports, a means of rung or bar adopting variable shape, preferably formed by a central body with lateral protruding axes whose ends of these axes have guides which each have a guide at their external angles, on the external side it carries an axis with a guide, the guides being the which are housed in the guide rails of said lateral supports and of said guide axis respectively, each of said lateral guides of said step being inserted in said tube located in the lateral supports and one end of said springs is fixed so that they are dragged into ascent and / or descent; It includes a fixed handle on the outer side of said step having a hollow bar in the form of a "T", a control piece, with the upper face freedom of movement, two threads and two hooks as safe for movement control of said step that when acting will lock and unlock said step or bar, when the ladder is active, said step being in the first instance in the lower part of said control piece on said handle will release said step, secured with said fixed hook with a thread to said piece to the acting then the upper spring will drag down through said thread the sections of said telescopic tube which will compress said sack and air will be distributed towards the ends of said sack and push said lateral guides of said sliding step. 2.- Escalera sujetable con peldaño deslizable de acuerdo con Ia reivindicación 1, incluye un medio de soporte lateral en forma de dos soportes laterales lineales que adopta forma variable y que tiene en Ia parte superior una inclinación hacia el exterior para liberar el área de recorrido de dicho peldaño en deslizamiento de ascenso y/o descenso.2. A ladder that can be fastened with a sliding step according to claim 1, includes a lateral support means in the form of two linear lateral supports that adopt a variable shape and which has an inclination towards the outside to release the travel area. of said step in ascent and / or descent slip. 3.- Escalera sujetable con peldaño deslizable de acuerdo con Ia reivindicación 1 y 2 incluye dos barras transversales, una barra hueca fija de manera transversal sobre Ia parte superior de dichos soportes laterales y una barra hueca fija de manera transversal sobre Ia parte inferior de dichos soportes laterales, ambas con un hueco en Ia parte central y acoplado un eje guía hueco teniendo dichas barras y soportes laterales un tubo inserto con un resorte inserto externo los cuales se fijan por un extremo a unas placas con un hueco para sostenimiento y para que se inserte un hilo que cooperan para control de movimiento de dicho peldaño a través de aire.3. A ladder that can be fastened with a sliding step according to claim 1 and 2 includes two transverse bars, a hollow bar fixed transversely on the upper part of said lateral supports and a hollow bar fixed transversely on the lower part of said lateral supports, both with a hollow in the central part and coupled a hollow guide shaft having said bars and lateral supports an insert tube with an external insert spring which are fixed at one end to plates with a hollow for support and so that a cooperating thread is inserted for control of movement of said step through air. 4,- Escalera sujetable con peldaño deslizable de acuerdo con Ia reivindicación 3, donde unas piezas de control fijas en dichas dos barras huecas en Ia cara superior e inferior respectivamente para cuando se requiera usar dicha escalera y dicho peldaño se encuentre en lugar no deseado actúan para colocarlo en servicio, las cuales tienen Ia cara superior en movimiento a través de un eje central y fijos los extremos de unos hilos que salen por un hueco de Ia cara inferior y que van internos longitudinalmente en dicho eje guía, en tanto el extremo opuesto de dicho hilo se inserta en el hueco de Ia pieza de control de Ia barra con los extremos en forma de escuadra inferior del eje guía y se fija, en tanto, Ia pieza de control inferior se presenta en forma inversa para control de movimiento de peldaño o barra pasivo.4, - Adjustable ladder with sliding step according to claim 3, wherein control parts fixed in said two hollow bars on the upper and lower face respectively for when it is required to use said ladder and said step is in an undesired place act to place it in service, which have the upper face in motion through a central axis and fixed the ends of some threads that exit through a hollow of the lower face and that go internally longitudinally in said guide axis, while the opposite end Said thread is inserted in the hollow of the control piece of the bar with the bottom-shaped ends of the guide shaft and is fixed, meanwhile, the lower control piece is presented in an inverse manner for control of step movement or passive bar. 5.- Escalera sujetable con peldaño deslizable de acuerdo con Ia reivindicación 1 a Ia 4, incluye un eje guía con el extremo inferior en forma de escuadra y que tiene una ranura central con injerto y un riel guía en su cara interna correspondiente solamente hasta Ia parte inferior recta por que hasta esa parte se desliza en ascenso y/o descenso dicho peldaño.5.- Ladder that can be fastened with a sliding step according to claim 1 to 4, includes a guide shaft with the lower end in the form of a square and which has a central groove with graft and a guide rail in its corresponding internal face only up to Ia straight bottom part because that part slides up and / or down said step. 6,- Escalera sujetable con peldaño deslizable de acuerdo con Ia reivindicación 5, incluye un saco de forma variable con aire comprimido regulado inserto en un tubo telescópico e inserto en dicho tubo fijo en dicho eje guía que tiene una válvula para regular el aire y adopta forma lineal en Ia parte de dicho eje guía y se ramifica en dirección y hasta Ia parte superior de dichos soportes laterales.6, - Ladder with sliding step according to claim 5, includes a bag of variable shape with regulated compressed air inserted in a telescopic tube and inserted in said fixed tube in said guide shaft that has a valve to regulate the air and adopts linear form in the part of said guide axis and branches in the direction and to the upper part of said lateral supports. 7.- Escalera sujetable con peldaño deslizable de acuerdo con Ia reivindicación 6, donde dicho saco con aire comprimido será comprimido por cualquier elemento o medio para distribuir el aire hacia los extremos y ejerza presión sobre dicho peldaño o barra en deslizamiento,7. A ladder that can be fastened with a sliding step according to claim 6, wherein said sack with compressed air will be compressed by any element or means to distribute the air towards the ends and exert pressure on said step or sliding bar, 8.- Escalera sujetable con peldaño deslizable de acuerdo con Ia reivindicación 1, incluye un medio de peldaño que adopta forma variable que tiene libertad de movimiento, tipo grúa con un recorrido máximo de! tamaño de dichos soportes laterales que tiene unas proyecciones laterales y una en el costado extemo que se insertan en una ranura de dichos soportes laterales para el movimiento deslizable ascendente y/o descendente.8.- Ladder with sliding ladder according to claim 1, includes a step means that adopts variable shape that has freedom of movement, crane type with a maximum travel from! size of said lateral supports having lateral projections and one on the outer side that are inserted into a slot of said lateral supports for sliding up and / or downward movement. 9.- Escalera sujetable con peldaño deslizable de acuerdo con Ia reivindicación 8, donde un medio de control de movimiento por fricción se asocia operablemente a dicho peldaño para control de movimiento de peldaño o barra9. A ladder that can be fastened with a sliding step according to claim 8, wherein a friction motion control means is operably associated with said step for controlling the step or bar movement 10.- Un mecanismo de control de movimiento de peldaño o barra a través de aire de acuerdo con las reivindicaciones de Ia 1 a Ia 9 donde dicho mecanismo de control de movimiento de peldaño o barra a través de aire tiene un eje guía que cuenta con un tubo, un resorte, un elemento compresor o tubo telescópico, un saco con aire comprimido qué operan para el ascenso y/o descenso; unos tubos con resorte externo que cooperan para el movimiento de dicho peldaño o barra en ascenso y/o descenso, medios de control de peldaño, medio de peldaño y un medio de agarradera. 10.- A mechanism for controlling the movement of the step or bar through the air according to claims 1 to 9, wherein said mechanism for controlling the movement of the step or bar through the air has a guide shaft that has a tube, a spring, a compressor element or telescopic tube, a bag with compressed air which they operate for ascent and / or descent; external spring tubes that cooperate for the movement of said step or bar on the rise and / or descent, step control means, step means and a handle means.
PCT/MX2008/000087 2008-01-23 2008-07-11 Securable staircase with sliding step Ceased WO2009093886A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MX2008001081A MX2008001081A (en) 2008-01-23 2008-01-23 Fastening ladder comprising sliding steps.
MXMX/A/2008/001081 2008-01-23

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WO2009093886A1 true WO2009093886A1 (en) 2009-07-30

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
US8053538B2 (en) * 2005-07-27 2011-11-08 Asahi Glass Company, Limited Ether composition and solution composition

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US2993561A (en) * 1959-08-13 1961-07-25 Cyril J Watson Collapsible ladder
US4049081A (en) * 1976-01-12 1977-09-20 Mcdonald Walter Operator-actuated elevating device
GB2203129A (en) * 1987-02-28 1988-10-12 Dermot Maynes Self raising step ladder
WO2005106179A1 (en) * 2004-05-03 2005-11-10 Marisela Rojas Arriaga Ladder comprising a mechanism for controlling movable steps or bars
US20070063486A1 (en) * 2005-09-21 2007-03-22 Tai-Lang Lin Pick-up trolley

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2993561A (en) * 1959-08-13 1961-07-25 Cyril J Watson Collapsible ladder
US4049081A (en) * 1976-01-12 1977-09-20 Mcdonald Walter Operator-actuated elevating device
GB2203129A (en) * 1987-02-28 1988-10-12 Dermot Maynes Self raising step ladder
WO2005106179A1 (en) * 2004-05-03 2005-11-10 Marisela Rojas Arriaga Ladder comprising a mechanism for controlling movable steps or bars
US20070063486A1 (en) * 2005-09-21 2007-03-22 Tai-Lang Lin Pick-up trolley

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8053538B2 (en) * 2005-07-27 2011-11-08 Asahi Glass Company, Limited Ether composition and solution composition

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