ES2524157T3 - Lifting device for ladder, ladder or work platform - Google Patents

Lifting device for ladder, ladder or work platform Download PDF

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Publication number
ES2524157T3
ES2524157T3 ES12290023.6T ES12290023T ES2524157T3 ES 2524157 T3 ES2524157 T3 ES 2524157T3 ES 12290023 T ES12290023 T ES 12290023T ES 2524157 T3 ES2524157 T3 ES 2524157T3
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Spain
Prior art keywords
bolts
extensions
sliding
uprights
ladder
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ES12290023.6T
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Spanish (es)
Inventor
Bertrand Cupif
Teddy Sannier
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Macc SA
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Macc SA
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/39—Ladders having platforms; Ladders changeable into platforms
    • E06C1/393—Ladders having platforms foldable with the ladder
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/14—Ladders capable of standing by themselves
    • E06C1/16—Ladders capable of standing by themselves with hinged struts which rest on the ground
    • E06C1/20—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles
    • E06C1/22—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles with extensible, e.g. telescopic, ladder parts or struts
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/32—Ladders with a strut which is formed as a ladder and can be secured in line with the ladder
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/06—Securing devices or hooks for parts of extensible ladders
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/42—Ladder feet; Supports therefor

Landscapes

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

Abstract

Conjunto (1) de peldaño deslizante para escaleras, escalerillas o plataformas compuesto por un peldaño (9) unido mediante cuatro tornillos (10, 10', 10'', 10''') a dos alargadores (2, 2') y a dos montantes (4, 4'), donde dicho peldaño (9) está unido a dos cerrojos (3, 3') empujados por dos muelles (8, 8') que deslizan dentro de dos horquillas (14, 14') y que atraviesan cerrojos los montantes (4, 4') a través de orificios (11, 11', 12, 12', 13, 13') de fijación en función de la altura elegida y se alojan en una perforación (15, 15') practicada en los alargadores (2, 2'), enclavando así el conjunto (1) de peldaño deslizante, caracterizado porque el extremo (16, 16') con forma de C de los cerrojos (3, 3') permite al usuario al mismo tiempo y con una sola mano desenclavar el sistema sin soltar los cerrojos (3, 3') y hacer deslizar el conjunto (1) de peldaño deslizante tirando de los cerrojos (3, 3') siempre en posición desenclavada a lo largo de un eje paralelo a los montantes (4, 4') con el fin de obtener la posición deseada haciendo coincidir los cerrojos (3, 3') con los orificios (11, 11', 12, 12', 13, 13') de fijación permitiendo una manipulación simplificada del producto.Set (1) of sliding steps for stairs, ladders or platforms consisting of a step (9) connected by four screws (10, 10 ', 10' ', 10' ') to two extensions (2, 2') and two uprights (4, 4 '), where said step (9) is connected to two bolts (3, 3') pushed by two springs (8, 8 ') that slide inside two forks (14, 14') and that cross bolts the uprights (4, 4 ') through holes (11, 11', 12, 12 ', 13, 13') fixing according to the chosen height and are housed in a perforation (15, 15 ') practiced in the extensions (2, 2 '), thus interlocking the sliding step assembly (1), characterized in that the C-shaped end (16, 16') of the bolts (3, 3 ') allows the user at the same time and with one hand unlocking the system without releasing the bolts (3, 3 ') and sliding the assembly (1) of sliding step by pulling the bolts (3, 3') always in an unlocked position along a parallel axis to the uprights (4, 4 ') in order to obtain the desired position by matching the bolts (3, 3') with the fixing holes (11, 11 ', 12, 12', 13, 13 ') allowing simplified handling of the product.

Description

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E12290023 E12290023

17-11-2014 11-17-2014

DESCRIPCIÓN DESCRIPTION

Dispositivo de alzamiento para escalera, escalerilla o plataforma de trabajo Lifting device for ladder, ladder or work platform

Para lograr la variabilidad de alturas de intervención, los materiales utilizados del tipo escalera, escalerilla o plataforma a menudo están provistos de pies telescópicos regulables que permiten alcanzar mayores alturas de trabajo. Estos dispositivos hacen que disminuya la rigidez a torsión necesaria para la resistencia a largo plazo. To achieve the variability of intervention heights, the materials used of the ladder, ladder or platform type are often provided with adjustable telescopic feet that allow greater working heights to be reached. These devices reduce the torsional stiffness necessary for long-term resistance.

Además, a menudo son necesarias varias manipulaciones para modificar la altura. La Patente US 2003/188923 A1 describe un conjunto de peldaño deslizante de acuerdo con el preámbulo de la reivindicación 1. Esta invención tiene por objetivo solucionar estas insuficiencias creando un conjunto completo y rígido de peldaño, alargadores deslizantes y base. In addition, several manipulations are often necessary to modify the height. US 2003/188923 A1 discloses a sliding step assembly according to the preamble of claim 1. This invention aims to solve these shortcomings by creating a complete and rigid set of steps, sliding extensions and base.

Además, una disposición de forma y de posición de los cerrojos permite desenclavar el conjunto y hacerlo deslizar con una sola mano y sin segundos agarres, lo cual permite un ahorro de tiempo. In addition, an arrangement of shape and position of the locks allows the assembly to be unlocked and made to slide with one hand and without second grips, which saves time.

Otra disposición de fabricación de los alargadores deslizantes en forma de U permite realizar una solución resistente a la flexión y barata gracias a la forma de fijación del peldaño a dichos alargadores. Another manufacturing arrangement of the U-shaped sliding extensions makes it possible to make a flex-resistant and cheap solution thanks to the way of fixing the step to said extensions.

La Figura 1 presenta un montante en perspectiva provisto de un alargador telescópico en posición intermedia. Figure 1 shows a perspective upright provided with a telescopic extension in intermediate position.

La Figura 2 presenta el producto en perspectiva. Figure 2 presents the product in perspective.

La Figura 3 presenta un montante en perspectiva provisto de un alargador telescópico visto de lado en posición intermedia. Figure 3 shows a perspective upright provided with a telescopic extension viewed from the side in the middle position.

La Figura 4 presenta un montante en perspectiva provisto de un alargador telescópico en posición intermedia del lado de enclavamiento del montante. Figure 4 shows a perspective upright provided with a telescopic extension in the intermediate position of the interlocking side of the upright.

La Figura 5 presenta un montante en perspectiva provisto de un alargador telescópico en posición bajada y enclavado. Figure 5 shows a perspective upright fitted with a telescopic extension in the lowered and locked position.

La Figura 6 presenta un montante en perspectiva provisto de un alargador telescópico en posición bajada y desenclavado. Figure 6 shows a perspective upright fitted with a telescopic extension in the lowered and unlocked position.

De acuerdo con las Figuras 1, 2, 3 y 4, el conjunto (1) de peldaño deslizante está compuesto por un peldaño (9) unido mediante cuatro tornillos (10, 10’, 10’’, 10’’’) a dos alargadores (2 y 2’). Estos alargadores deslizan alrededor de montantes (4 y 4’) y son solidarios a la base (5) que soporta dos tacos (6 y 6’) de apoyo. En el presente caso los dos montantes (4 y 4’) están unidos a una plataforma (19). According to Figures 1, 2, 3 and 4, the sliding step assembly (1) is composed of a step (9) joined by four screws (10, 10 ', 10' ', 10' '') to two extensions (2 and 2 '). These extensions extend around uprights (4 and 4 ’) and are integral to the base (5) that supports two studs (6 and 6’) of support. In the present case the two uprights (4 and 4 ’) are attached to a platform (19).

De acuerdo con las Figuras 5 y 6, el sistema de fijación del conjunto (1) de peldaño deslizante es realizado mediante dos cerrojos (3 y 3’), los cuales, empujados por dos resortes (8 y 8’) que deslizan dentro de dos horquillas (14 y 14’) unidas al peldaño (9), atraviesan los montantes (4 y 4’) a través de orificios (11, 12 ó 13) de fijación y de sus opuestos (11’, 12’ ó 13’) en función de la altura elegida y se alojan en otra perforación (15 ó 15’) practicada en los alargadores (2 y 2’) bloqueando así el conjunto (1) de peldaño deslizante. According to Figures 5 and 6, the fastening system of the sliding step assembly (1) is made by two bolts (3 and 3 '), which, pushed by two springs (8 and 8') that slide into two forks (14 and 14 ') attached to the step (9), cross the uprights (4 and 4') through fixing holes (11, 12 or 13) and their opposites (11 ', 12' or 13 ' ) depending on the height chosen and are housed in another perforation (15 or 15 ') made in the extensions (2 and 2') thus blocking the assembly (1) of sliding step.

Siempre de acuerdo con las Figuras 4, 5 y 6, los cerrojos (3 y 3’) son accionados por la mano del usuario que con el pulgar y el índice puede atrapar al mismo tiempo los dos extremos (16, 16’) con forma de C de los dos cerrojos (3 y 3’). Acercando dichos cerrojos (3 y 3’) el uno al otro por compresión de los muelles (8 y 8’), el usuario desenclava el sistema y puede entonces, sin soltar los cerrojos (3 y 3’) y tirando a lo largo de un eje paralelo a los montantes (4, 4’), hacer deslizar el conjunto (1) de peldaño deslizante y posicionar así este último para hacer coincidir el extremo de los cerrojos (3 y 3’) con uno de los orificios (11, 11’, 12, 12’, 13, 13’) de fijación de los montantes (4 y 4’). Soltando los dos cerrojos (3 y 3’) se realiza el enclavamiento en la nueva altura de trabajo de la plataforma (19). Always in accordance with Figures 4, 5 and 6, the bolts (3 and 3 ') are operated by the user's hand that with the thumb and index can catch both ends (16, 16') in shape of C of the two bolts (3 and 3 '). By approaching said bolts (3 and 3 ') to each other by compression of the springs (8 and 8'), the user unlocks the system and can then, without releasing the bolts (3 and 3 ') and pulling along an axis parallel to the uprights (4, 4 '), slide the sliding step assembly (1) and thus position the latter to match the end of the bolts (3 and 3') with one of the holes (11, 11 ', 12, 12', 13, 13 ') for fixing the uprights (4 and 4'). By releasing the two bolts (3 and 3 ’) the interlocking is carried out on the new working height of the platform (19).

De acuerdo con las Figuras 3 y 4, cada alargador (2 y 2’) se realiza de manera idéntica simétricamente para obtener un montaje simple y rígido. Estos alargadores (2, 2’) se realizan mediante una chapa conformada en U que desliza por el exterior de los montantes (4, 4’) bloqueándolos en tres caras de su perfil. According to Figures 3 and 4, each extension (2 and 2 ’) is performed identically symmetrically to obtain a simple and rigid assembly. These extensions (2, 2 ’) are made using a U-shaped sheet that slides outside the uprights (4, 4’) blocking them on three sides of their profile.

De acuerdo con las Figuras 3 y 4, en el extremo superior de los alargadores (2, 2’) los pliegues (17, 17’, 17’’, 17’’’) permiten fijar el peldaño (9). Los tornillos (10, 10’, 10’’, 10’’’) unen el peldaño (9) a los alargadores (2, 2’), lo cual permite aprisionar los montantes (4, 4’) permitiendo sólo una traslación a lo largo de su longitud. Este sistema de fijación permite también evitar que la U de chapa conformada de los alargadores (2, 2’) se abra bajo el esfuerzo cuando el usuario se encuentra sobre la plataforma (19) o sobre el peldaño (9). Asimismo, los extremos (18, 18’) inferiores de los alargadores (2, 2’) son solidarios a la base (5) evitando así que las U de los alargadores (2, 2’) se abran bajo el esfuerzo. According to Figures 3 and 4, at the upper end of the extensions (2, 2 ’) the folds (17, 17’, 17 ’’, 17 ’’) allow the step (9) to be fixed. The screws (10, 10 ', 10' ', 10' '') join the rung (9) to the extensions (2, 2 '), which allows the uprights (4, 4') to be clamped allowing only a translation to along its length. This fixing system also allows to prevent the U of the shaped sheet of the extensions (2, 2 ’) from opening under the effort when the user is on the platform (19) or on the step (9). Likewise, the lower ends (18, 18 ’) of the extensions (2, 2’) are integral to the base (5) thus preventing the U of the extensions (2, 2 ’) from opening under the effort.

De acuerdo con las Figuras 3 y 4, el sistema completo compuesto por el peldaño (9), los alargadores (2, y 2’) y la base (5) permite realizar un bastidor rígido resistente a los esfuerzos transversales y de torsión que existen durante el acceso a la plataforma (19) y durante su uso. According to Figures 3 and 4, the complete system consisting of the step (9), the extensions (2, and 2 ') and the base (5) allows a rigid frame to be made resistant to the transverse and torsional stresses that exist during access to the platform (19) and during its use.

2 2

Claims (2)

E12290023 E12290023 17-11-2014 11-17-2014 REIVINDICACIONES 1. Conjunto (1) de peldaño deslizante para escaleras, escalerillas o plataformas compuesto por un peldaño (9) unido mediante cuatro tornillos (10, 10’, 10’’, 10’’’) a dos alargadores (2, 2’) y a dos montantes (4, 4’), donde dicho peldaño (9) está unido a dos cerrojos (3, 3’) empujados por dos muelles (8, 8’) que deslizan dentro de dos horquillas 5 (14, 14’) y que atraviesan cerrojos los montantes (4, 4’) a través de orificios (11, 11’, 12, 12’, 13, 13’) de fijación en función de la altura elegida y se alojan en una perforación (15, 15’) practicada en los alargadores (2, 2’), enclavando así el conjunto (1) de peldaño deslizante, caracterizado porque el extremo (16, 16’) con forma de C de los cerrojos (3, 3’) permite al usuario al mismo tiempo y con una sola mano desenclavar el sistema sin soltar los cerrojos (3, 3’) y hacer deslizar el conjunto (1) de peldaño deslizante tirando de los cerrojos (3, 3’) siempre en posición desenclavada 1. Set (1) of sliding steps for stairs, ladders or platforms consisting of a step (9) connected by four screws (10, 10 ', 10' ', 10' '') to two extensions (2, 2 ') and two uprights (4, 4 '), where said step (9) is connected to two bolts (3, 3') pushed by two springs (8, 8 ') that slide into two forks 5 (14, 14') and the bolts (4, 4 ') pass through bolts through holes (11, 11', 12, 12 ', 13, 13') for fixing according to the chosen height and are housed in a hole (15, 15 ') made in the extensions (2, 2'), thus interlocking the sliding step assembly (1), characterized in that the C-shaped end (16, 16 ') of the bolts (3, 3') allows the user at the same time and with one hand unlocking the system without releasing the bolts (3, 3 ') and sliding the assembly (1) of sliding step by pulling the bolts (3, 3') always in the unlocked position 10 a lo largo de un eje paralelo a los montantes (4, 4’) con el fin de obtener la posición deseada haciendo coincidir los cerrojos (3, 3’) con los orificios (11, 11’, 12, 12’, 13, 13’) de fijación permitiendo una manipulación simplificada del producto. 10 along an axis parallel to the uprights (4, 4 ') in order to obtain the desired position by matching the bolts (3, 3') with the holes (11, 11 ', 12, 12', 13 , 13 ') of fixing allowing a simplified manipulation of the product. 2. Conjunto (1) de peldaño deslizante para escalera, escalerilla o plataforma de acuerdo con la reivindicación 1, caracterizado porque los alargadores (2, 2’) están fabricados mediante una chapa con forma de U que recubre a 15 los montantes (4, 4’); en el extremo superior de estos alargadores (2, 2’) existen pliegues (17, 17’, 17’’, 17’’’) que permiten fijar el peldaño (9) mediante tornillos (10, 10’, 10’’, 10’’’) que permiten así aprisionar por completo los montantes (4, 4’) no permitiendo ninguna traslación a lo largo de su longitud; en los extremos (18, 18’) inferiores de estos alargadores (2, 2’) se encuentra una base (5) solidaria a los alargadores (2, 2’); estos dispositivos proporcionan solidez a los alargadores (2, 2’) evitando que la chapa con forma de U se abra en el extremo cercano 2. Set (1) of sliding step for ladder, ladder or platform according to claim 1, characterized in that the extensions (2, 2 ') are manufactured by means of a U-shaped sheet covering 15 uprights (4, 4'); at the upper end of these extensions (2, 2 ') there are folds (17, 17', 17 '', 17 '' ') that allow fixing the step (9) by means of screws (10, 10', 10 '', 10 '' ') thus allowing the studs (4, 4') to be completely imprisoned, allowing no translation along their length; at the lower ends (18, 18 ’) of these extensions (2, 2’) there is a base (5) integral to the extensions (2, 2 ’); these devices provide strength to the extensions (2, 2 ’) preventing the U-shaped sheet from opening at the near end 20 al peldaño bajo el esfuerzo cuando el usuario se encuentra sobre el peldaño (9) o sobre la plataforma (19). 20 to the step under the effort when the user is on the step (9) or on the platform (19). 3 3
ES12290023.6T 2012-01-18 2012-01-18 Lifting device for ladder, ladder or work platform Active ES2524157T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20120290023 EP2617937B1 (en) 2012-01-18 2012-01-18 Raising device for ladder, steps or working platform

Publications (1)

Publication Number Publication Date
ES2524157T3 true ES2524157T3 (en) 2014-12-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
ES12290023.6T Active ES2524157T3 (en) 2012-01-18 2012-01-18 Lifting device for ladder, ladder or work platform

Country Status (3)

Country Link
EP (1) EP2617937B1 (en)
ES (1) ES2524157T3 (en)
PT (1) PT2617937E (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104806155A (en) * 2015-02-27 2015-07-29 徐浩钟 Ladder for pruning in garden
CN107202227B (en) * 2017-07-21 2019-04-16 重庆高铁计量检测有限公司 A kind of projection arrangement
CN111594028B (en) * 2020-05-25 2021-11-05 宁波冶金勘察设计研究股份有限公司 Anti-falling escape ladder for foundation pit

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4298093A (en) * 1978-11-16 1981-11-03 Little Giant Industries, Inc. Sawhorse
TW375201U (en) * 1998-08-03 1999-11-21 Dofair Co Ltd Ladders with fixtures for preventing the deformation of the handrails at the bottom
DE29917711U1 (en) * 1999-10-07 2000-02-03 Mauderer Alutechnik Gmbh Load distribution module for roof ladders
GB2366829B (en) * 2001-09-27 2002-07-31 Nigel Parker Ladder stabiliser
US6866117B2 (en) * 2002-04-05 2005-03-15 Wing Enterprises, Inc. Light weight ladder systems and methods
DE60315887T2 (en) * 2002-11-11 2008-05-15 Wing Enterprises, Springville KOMBLEITER, LEITERBAUTEILE AND MANUFACTURING PROCESS FOR SUCH LADDER
GB0907949D0 (en) * 2009-05-08 2009-06-24 Arnold Stuart Fall restraint system and access ladder

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Publication number Publication date
EP2617937A1 (en) 2013-07-24
PT2617937E (en) 2014-10-09
EP2617937B1 (en) 2014-08-20

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