PT81865B

PT81865B - PERFORMS ON A DOUBLE-RELIEF LADDER

Info

Publication number: PT81865B
Application number: PT8186586A
Authority: PT
Original assignee: Loix Gilbert
Priority date: 1985-01-18
Filing date: 1986-01-17
Publication date: 1992-05-29
Also published as: EP0190115B1; ES8700378A1; DE3671496D1; CN86100405A; CN1005280B; EP0190115A2; EP0190115A3; PT81865A; ES550544A0

Abstract

L'invention est relative à des perfectionnements à une échelle repliable composée de deux montants profilés en cornières disposées en regard l'un de l'autre dont les faces perpendiculaires au plan de l'échelle portent deux nervures longitudinales munies de perforations en regard, recevant des pivots pour l'articulation des échelons de manière à pouvoir se replier. Trois points essentiels sont améliorés: le maintien de l'échelle au mur, le système électrique de déclenchement de l'ouverture de l'échelle, le placement correcte du système de déclenchement de l'échelle aux difféferents endroits de sa hauteur d'où son ouverture totale pourra être commandée manuellement ou électriquement.

Description

Aperfeiçoamentos numa escada de socorro õobravel”Improvements to an emergency rescue ladder ”

A nresente invenção refere-se a aperfeiçoamentos relatiz vos a ura escada ôobravel que comrreende dois banzos perfilados, de cantoneiras, disrostos um em frente do outro e ciue comureenI dem duas nervuras longitudinais providas de perfurações frente-a-frente, as auais recebem eixos de articulação dos degraus de rodo a noderem dobrar-se por arroximação dos banzos.The present invention relates to improvements related to a folding ladder that comprises two profiled flanges, with angles, arranged opposite each other and with two longitudinal ribs provided with face-to-face perforations, the current ones receive axes of articulation of the squeegee steps to be bent by arroximation of the edges.

z zz z

Neste tiro de escadas, e possível arerfeiçoar quatroIn this shot of stairs, it is possible to perfect four

Λ» Z rontos essenciais, cujos problemas nao foram, ate agora, completamente resolvidos ϊΛ »Z essential points, whose problems have so far not been completely resolved ϊ

1. A fixação da escada na parede?1. Fixing the ladder to the wall?

2. 0 sistema de disparo da abertura da escada?2. The triggering system for the stair opening?

3. A colocaçao correcte. do sistema de disparo da escada nos3. The placement is correct. the ladder firing system in the

I diferentes rontos da sua altura.·, donde a sua abertura total podez ra ser comandada?I different points of your height ·, where can your total opening be controlled?

4. A abertura autom.atica da escada e do resguardo com o au- z z xilio de um sistema manual ou electrico a rartir de um disparador, z mesmo nue estejam imobilizados os eixos ou maninulos dos outros β·ηΡ.τ*?.ί ΟΡΘΒ · z z4. The automatic opening of the ladder and guard with the help of a manual or electronic system from a trigger, even if the axes or handles of the others are immobilized β · ηΡ.τ * ?. ί ΟΡΘΒZZ

Portanto, e necessário ter em conta que, quando da colocação deste escada dobrada em caixões de comprimento determinado, z z e necessário, quando a fachada tem uma altura maior que a de um so caixão, colocar dois ou mais caixões uns por cima dos outros para conseguir igualar e ultranassar a altura da fachada a enuiIP ’rar com. este. escada fohravelTherefore, it is necessary to take into account that, when placing this stairway folded in coffins of determined length, it is necessary, when the facade has a height greater than that of a single coffin, to place two or more coffins on top of each other to achieve to equalize and exceed the height of the facade to enuiIP 'rar with. This one. fohravel ladder

nar s oli cl e,ri os aj Z •nara formar arenas um caixao ou escada, dohravel, de uoder realizar a abertura total da escada a rartir de diferentes alturas, ror exemrlo em frente de cada saida de acesso a escada. 35 pois importante que o desengate das peças de retenção zTo tell s oli cl e, laughs aj Z • nara to form arenas a box or ladder, dohravel, in order to fully open the stairway from different heights, for example in front of each exit to access the stairway. 35 therefore it is important that the disengagement of the retaining parts z

do banzo movei e o afastamento deste do banzo fixo sejam garantidos em todos os locais cia altura, da escada, onde sao previstas.of the movable flange and its removal from the fixed flange are guaranteed in all places at the height of the stairs, where they are provided.

Uva. das condições o alinhamento e a manutenção perfeita no ria no vertical dos diferentes caixões sucessivos que formam a escaZGrape. of the conditions the alignment and perfect maintenance on the vertical side of the different successive coffins that form the scale

Ξ pois imperativo dispor uniões guiáveis, capazes de satisfazer a estas zIt is therefore imperative to have manageable couplings capable of satisfying these z

ta nua deve ser excluída a esperança de ct c'.naked, hope of ct c 'must be excluded.

fachada do edifício arresentar um plano vertical nerfeito.the facade of the building has a nerfect vertical plane.

forco de traccao ou. de pressão, vertical ou horizontal, nos ban zos ou nos degraus d? escada nao rode permitir a seraracao daaue la das uniões nas quais e mantida.traction force or. pressure, vertical or horizontal, in banks or steps d? the ladder does not rotate to allow sawing of the joints in which it is maintained.

Uma outra condicao para se obter o máximo de garantia quanto ao bom funcionamento dos diferentes disparadores de abertura da escada, resulta de uma colocaçao correcta nos sitios rez z queridos quando da montagem da escada no edifício. Para isso, eAnother condition for obtaining the maximum guarantee as to the proper functioning of the different triggers for opening the stairs, results from a correct placement in the rez z wanted places when assembling the stairs in the building. For that, and

Z inclisrersavel disror no local, por um lado, de todos os pontos rre-estabeloeidos nos quais se possa colocar um eixo e um suporte de disparador no banzo fixo da escada e, por outro lado, de zZ inclisrersavel disror in the location, on the one hand, of all the re-established points in which an axis and a trigger support can be placed in the fixed stairwell of the stairs and, on the other hand, of z

todos os locais rre-estabelecidos onde se possa colocar a cremalheira do mesmo disparador na barra de comando de desengate do zall re-established locations where the rack of the same trigger can be placed on the z release control bar

banzo movei.I moved.

a presentethe present

ΓΜ j ρ’-τς© o rjo remedio aos inconvenientes ci tados e resolve os problemas essenciais referidos antes, ^revendo aΓΜ j ρ’-τς © o rjo remedies the cited inconveniences and solves the essential problems mentioned above, ^ by reviewing the

possibilidade de dilatação dos componentes da escada, devid.e as «·* variações de temreratura, sem criar zonas submetidas a tensõespossibility of expansion of the ladder components, due to «· * temperature variations, without creating stressed areas

oue podem gerar a deformação da escada em certos pontos. “· nresente invenção nrevé ainda ? possibilidade de realizar a abertuz ra cia escada por rei o de um sistema electrico comandado por hoΛ» fW ** toes d.e nressao colocados nos locais das diferentes saídas para a escada e, alem disso, combinar o sistema cie abertura electrica cor- o sistema de abertura manual. No caso de falha de um dos disparadores, pode fazer-se funcionar a abertura, da escada, ou com o auxílio de um disparador, ou então electricamente, utiliz zando o dispositivo electrico previsto para esse efeito.oue can cause deformation of the ladder at certain points. “· Nresente invention nrevé yet? possibility of opening the stairway by means of an electronic system controlled by hoΛ »fW ** nession pieces placed at the locations of the different exits for the stairway and, in addition, combining the electronic opening system with the locking system. manual opening. In the event of failure of one of the triggers, the opening can be operated from the ladder, either with the aid of a trigger, or electrically, using the electronic device provided for that purpose.

·* «J· * «J

Uma outra, cara,cteristica da presente invenção reside no zAnother, expensive, characteristic of the present invention resides in z

facto de, auando se acciona um maninulo, este fazer rociar o pinhão re-snectivo, o qual faz deslocar a cremalheira correspondeuz z te oue e solidaria da chapa que serve de barra, chapa essa sobre z a aual se fixa, em cada estádio, uma. outra cremalheira, estando cada cremalheira. colocada sobre essa chapa ou. barra, actua no seu Tirhao resnectivo, sem ror isso fazer rodar o seu eixo de osoilac.ao e o manipulo correspondentes, o oue faz cor <me a operação de actuar no braço cio disparador seja independente do movimento dos outros braços dos disparadores.the fact that, when a handle is operated, it causes the pinion to rotate, which causes the rack to shift correspondingly to the plate that serves as a bar, the plate on which the current is fixed in each stage. . another rack, each rack being. placed on that plate or. bar, acts on its respective Tirhao, without rotating its osoilation axis and the corresponding handle, the color makes the operation of acting on the trigger arm independent of the movement of the other trigger arms.

- AZ Z aperfeiçoamento segundo a presente .invenção e introduz z zido nas escadas de socorro dobráveis em um ou vários elementos- AZ Z improvement according to the present invention and introduces z in the rescue stairs folding in one or more elements

Az siícessivos rara cima, cujos elementos sao formados ror dois banzos de cantoneiras, dispostos um em frente do outro de maneira, a o^or-se relas suas faces interiores, degraus articulados nos referidos bonzos, banzos esses cujas faces interiores pemendiculares ao nlano da. escada levam, respectivamente, duas nervures lonmi tv/inaís si.iuPdas junto do bordo da ale te do primeiro . benzo e junto do anvulo do sexundo banzo, ficando cada iima des-Rare ups, whose elements are formed by two flanges of angles, arranged in front of each other in a way, on the inside of their faces, steps articulated in the said flutes, flanges whose interior faces are pending to the side of the. The stairs lead, respectively, to two nerves lonmi tv / inaís si.iuPdas near the edge of the first floor. benzo and next to the anvulo of the sixth banzo, each i

tas nervuras er frente de uma nervura do outro banzo e estendo providas, a intervalos regulares no sentido longitudinal, de perthese ribs in front of a rib on the other flange and extending, at regular intervals in the longitudinal

furações frente-a-frente oue receber eixos de oscilecao, caracterizada ror o banzo de cantoneira fixo, isto e, a colocar do lado «’ε - fechada., comreender, ror um lado, de cada lado, exterior eface-to-face drilling or receive oscillating axes, characterized by the fixed angle flange, that is, to be placed on the «’ ε - closed side., comendender, on one side, on each side, outside and

1? teralren te, ura ale ta paralela. ao plano da fachada, sendo reba-1? teralren te, a parallel ta. to the facade plan, being reduced

de cada ur dos lados sobre necas que tos— p-nem um entalhe οτ>θ vai prender-se na extreirida.defrom each side ur on necas that tos— not a notch οτ> θ will be attached to the edge.

--- > Λ# laterais, .tístas receber uma confiruracao 'cal oue---> Λ # lateral, .stists receive confirmation 'cal oue

nossa® colocarz se ate a garganta znossa® colocz up to the throat z

do entalhe de cada peca que esta fixada por meio de um ou mais parafusos num local pretendido do comrrirento, respectivamente do ou dos furos alongados paralelos longitudinais zof the notch of each part that is fixed by means of one or more screws in a desired location of the component, respectively of the elongated parallel longitudinal holes z

de oue esta nrovida cada uma das aletas de uma peca em forra deIt is covered each of the fins of a piece covered with

XT ancorada na fachada, .indo a peca de ancoragem apertar e reter, nelas suas eletas, o banzo fixo por meio de peças cor¹ entalhes e, ror outro lado, ror o referido banzo fixo compreender interior rente, en⁺re a sus aleta nernendicular a fachada e a nervura visinha, una ranhura, du’'la em forma de cabeça cie martelo destinada p remitir oue rela deslizem os bordos de uma chapa com. um cornrirento idêntico ao de um elemento da escada, destinando-se esta chana de ca.de elemento a ser ligada sucessivamente as outras, de maneira a garantir a continuidade e a. ligaça.o ao louvo de toda a altura da. escada; meios de retenção na sua posição dobrada e de abertura e, por perfurações sucessivas, permitir enfiar ura z creralh-eira em locais determinados rara ai colocar um disparador, por exemnlo de em 5θ cm, sendo também determinados locais na aleta lateral do benzo fixo, por perfurações sucessivas destinada.® a receber uma bitola de Perfuração para a execucao das per^..tracoes viera a fixacao do sunorte do eixo do disrare.dor.XT anchored to the facade, the piece .indo anchoring tighten and retain their eletas them, the fixed flange by means of color slots parts ¹ and ROR other hand, the rotor comprises said fixed flange flush within, and n ⁺ r versus the fin nernendicular the façade and the vein next to it, a groove, in the shape of a hammer head designed to remit or relay the edges of a plate with. a horn similar to that of a staircase element, this chana of each element being intended to be connected successively to the others, in order to guarantee continuity and. connect it to the praise of the entire height of. ladder; retention means in its folded and opening position and, through successive perforations, allow to insert a z creralh-eira in determined places, rarely to place a trigger, for example in 5θ cm, also being determined places in the side fin of the fixed benzo, for successive perforations destined.® to receive a Perforation gauge for the execution of the drills, it will come the fixation of the body of the axis of the disc.

•Alem disso, vera ?.se escurar um funcionamento facil da su-• In addition, will you see?

'cessão das chapas, dos pinhões e das cremalheiras que permitem a fixação, o desengate e %'assignment of plates, pinions and racks that allow fixing, disengagement and%

trai oposta a ale ta lateral perpendicular cio banzo fixo e fixado por rp parafuso ou perno roscado, vai poder servir de chumaceira rv, de oscilaeao rara o eixo d© disparador, impedir a dexowacso da ale ta lateral do banzo fixo e, por conseguinte, manter um bom envrenamento do ninhao e da cremalheira.opposite the lateral wing perpendicular to the fixed flange and fixed by a rp screw or threaded bolt, it will be able to serve as an rv bearing, a rare oscillation of the trigger shaft, prevent the dexowacso of the lateral wing of the fixed flange and, therefore, maintain good nesting and racking.

D© acordo c<~>r uma outra forma de realizacao preferida da presente invenção, para assegurar o funcionamento da sucessão das chanas, dos Pinhões e das cremalbeiras que permitem o engate, o desengate e o afastamento dos dois banaos da escada, pode prever-se, em vez de um suporte de reforço que se encaixa na ranhura lateral da nervura- central, um suporte de reforço que não se ajusta nesta ranhura lateral da nervura central mas que se encaixa apenas numa gola semelhante as existentes em peças de dilapeça em U. Sste suporte de reforço de no chumaceira para o eixo do pinhão da zIn agreement with another preferred embodiment of the present invention, to ensure the operation of the succession of chanas, Pinions and racks that allow the engagement, disengagement and removal of the two sides of the ladder, you can foresee - instead of a reinforcement support that fits in the side groove of the central rib, a reinforcement support that does not fit in this lateral groove in the central rib, but that fits only in a collar similar to the existing ones in plaster pieces in U. This non-bearing reinforcement bracket for the z pinion shaft

cremalheira, e e mantido la d.o da neça.rack, and is maintained there from the neça.

i:i:

lm de compreender melhor a presente invenção e fazer suas caracteristicas, vai descrever-se a mesma com da escada dobrada, ao arco, vista do norrenor inscrito na circunferên fi.v. 1, sendo este pormenor concebido de acor-In order to better understand the present invention and make its characteristics, the same will be described with the folded ladder, to the arch, seen from the surrounding area inscribed in the circumference fi.v. 1, this detail being designed according to

x fig. lb, x fig. lb, ura. /M ura. / M vista simplificada parcial partial simplified view nível level cio mesmo cai: the same heat falls: nao, no, a altura de uma peca de re: the height of a piece of re: A fig. 1c, Fig. 1c, uma an vista do normenor inscrito view of the enrolled norman cia a cia tracejado da dashed jy· Jlg. jy · Jlg. _t lb, estando este pormenor _t lb, this detail being

ura vista er redução, cor· arranque parcial, do lado de um troco uma vista em redução, cor arranoue parcial, doa reduction view, partial start color, on the side of a change a reduction view, partial scratch color,

A ? í g,THE ? IG,

uma vista, do pormenor inscrito na circunferenda a tracejado da fig. ? secundo uma outra forma de realizacao?a view, of the detail inscribed in the dashed circumference of fig. ? according to another form of realization?

A THE fig. fig. 4, 4, ura ura vista. View. de in A THE fig. fig. 5, 5, uma. an. vista View cia co fixo j fixed j Á THE fig. fig. 6? 6? uma an vista. View. da gives

a abrir?to open?

lado da peca de dilataçãoí peça de engate prevista no banzo peça de engate prevista no banzoside of the expansion partí coupling part provided for in the flange coupling part provided for in the flange

A fig. 7, uma vista simrlificad.a de nerfil do disparador,Fig. 7, a simulated view of the trigger nerfil,

A fig. 8, uma vista parcial da parte de tras da peça de ancoragem *Fig. 8, a partial view of the back of the anchor piece *

A- fig. 9, uma vista das duas peças previstas para a colocacao do disparador3 eA- fig. 9, a view of the two parts provided for placing the trigger3 and

A fig. 10, ura vista cor arranque do conjunto das peças previstas parca o disparo da escada.Fig. 10, a start-up view of the set of parts provided for the firing of the ladder.

Com. referência às figs. 1 e lb, representou-se por (1) a fachada, de um edifício, por (2) uma peça em U ancorada ror meio de um parafuso expansível (5), peça essa provida na parte traseira de um furo alongado de regulação (ver a fig.8) antes da fixacão definitiva, na parede e, ern cada uma das suas ale tas, de dois furos alongados (4/ nos quais passam os dois parafusos (5) que mantêm de um lado e do outro as peças (6), nas quais e mantidoWith reference to figs. 1 and lb, represented by (1) the facade of a building, by (2) a U-piece anchored by means of an expandable screw (5), a part provided at the rear of an elongated adjustment hole ( see fig.8) before the final fixation, on the wall and, in each of its wings, two elongated holes (4 / through which the two screws (5) that hold the pieces on one side and the other ( 6), in which it is maintained

'e pode deslizar, em virtude da dilatação, por exemplo, verticalmente , o benzo fixo cie cantoneiro. (7) da escada que compreende nervuras longitudinais (r) nas quais se prevem perfurações (9) •pera os eixos dos degraus (não representados). 0 furo alongado da neça eri U (?) (fig. 8·) e excêntrico em relaçao ao eixo, de ma neira a -permitir um deslocamento lateral máximo (^) a fim de alinhar correctamente na vertical todas as pecas de dilatação (6), mesmo que 0 parafuso de ancoragem no edificio tenha -que deslocar-se lateralmente, devido, por exemplo, θ presença de uma. bar! ra da armadura.'and it can slide, due to the expansion, for example, vertically, the fixed benzo of the angle. (7) the stairway comprising longitudinal ribs (r) in which perforations are anticipated (9) • through the axis of the steps (not shown). The elongated hole of the ne eri U (?) (Fig. 8 ·) and eccentric in relation to the axis, in order to allow a maximum lateral displacement (^) in order to correctly align all the expansion pieces (6) ), even if the anchor bolt in the building has to move sideways, due, for example, to the presence of one. Pub! armor.

Ha fig. 1 representou-se ainda 0 banzo de cantoneira (10) a abrir e que, quando fechado, forma com o banzo fixo o caixão.There is fig. 1 there was also shown the corner flange (10) to be opened and which, when closed, forms the coffin with the fixed flange.

Este banzo (10) a abrir compreende igualmente nervuras longitudinais (11) que ficam era frente das nervuras (δ) do banzo fixo (?). beste banzo (10) a abrir, prevem-se furos (12) para os eixos de oscilação dos degraus (não representados). ®e uma maneira conhecida, uma das nervuras (11) do banzo (10) a abrir compreende aletas longitudinais (13) e (14) nas ouais são previstos furos (15) rara os eixos do resguardo (nao representado). Em frente destas I aletas (15) e (14), representou-se ura perfilado (16), que constitui o banzo oposto do resguardo (não reiiresentado) e que compreende igualmente furos (17) para os eixos de oscilação deste resguardo (não representado).This flange (10) to be opened also comprises longitudinal ribs (11) that are in front of the ribs (δ) of the fixed flange (?). beste banzo (10) to be opened, holes (12) are provided for the axes of oscillation of the steps (not shown). ®and in a known way, one of the ribs (11) of the flange (10) to be opened comprises longitudinal fins (13) and (14) in the mouths holes (15) are provided for the axes of the guard (not shown). In front of these I fins (15) and (14), a profile (16) was represented, which constitutes the opposite flange of the guard (not king-facing) and which also includes holes (17) for the axes of oscillation of this guard (no represented).

Ha fig. la, representou-se a nervura (δ) segundo uma ouAJ Λ* 5 tra forma -preferida. de realizacao da presente invenção. & nervn ra. ) não apresenta as ranhuras (42)* e Esta ultima ranhji ra (⁴-3) foi substituiô.a por uma garganta (8 ’) na oual vai encaixar-se o nariz (44’) do suporte Í41’) que e mantido no seu lugar •nor çp.teibe efectuado de cada lado deste na garganta. (<?^!) com 0 auxilio de um buril? este sunorte rossui um furo (9’) cue ser-There is fig. la, the rib (δ) was represented according to another preferred shape. of carrying out the present invention. & nervn ra. ) does not have the grooves (42) * and This last groove ( ⁴ -3) has been replaced by a throat (8 ') in the mouth which will fit the nose (44') of the support 41 ') which is maintained in its place • nor çp.teibe carried out on each side of it in the throat. ^(<!) 0 with help of a chisel? this port has a hole (9 ') cue to be used

ve de apoio ao eixo (2$) oue passa através do pinhão (31) da cremalheira (32). -kljacente a este suporte (41’) ha una anilha espessa (41c) que desempenha a. função de distancie cl or. Sste distanciador (41c) impede o empenamento do suporte (41 ’).support shaft (2 $) ore passes through the pinion (31) of the rack (32). -kjacent to this support (41 ') there is a thick washer (41c) that plays the. distance function cl. This spacer (41c) prevents the support (41 ’) from warping.

Ifes figs. 9 e 10, rode a ir da. ver-se esqueraticemente o zIfes figs. 9 and 10, turn to go from. to see left z

er particular, um manipulo d.e \18j ouc? se encontra a em cie cada local de saída, nor previstos furos (1?·) feitos aleta perpendicular fachada do banzo fixo (7).in particular, a handle d.e \ 18j ouc? Each exit location is located in the same norm as holes (1?) made perpendicular flap to the fixed flange face (7).

permite®, com o auxilio furacao, fixada ror parafusos numa destas perfurações Gs), realizar, nesse local, a colocacao do suporte (30) do eixo (?°) e, nortanto, cias outras pecas que constituem 0 disparador.allows®, with the aid of drilling, fixed with screws in one of these perforations (Gs), to carry out, in that place, the support (30) of the axis (? °) and, therefore, other pieces that constitute the trigger.

Se a associação dos troços sucessivos da escada resultar do conjunto das disposições seguintes’ ligação positiva dos hansos fixos (7) na fachada (1) por intermédio das reeas em U (2) e ligacao indirecta, dos montantes moveis Z” a abrir (10) _/ ror intermédio dos degraus (não rer-resentados) e dos banzos fiz * * ros (⁷), e importante que se possa, simultaneamente, reter cada z uma. das narres moveis de cada. troco na parte fixa, correspondeuz te mas também libertar, a diferentes alturas, 0 conjunto da escada. Para isso, nreviu-se uma ligacao directa nara o engate e o desengate. Para esse efeito, a face interior do banzo fixo > V % (7) compreende entre a ale ta. perpendicular a face interior do banzo fixo (7) e a nervura vizinha (a), uma ranhura durla longi tudinal (19) na qual se faz deslizar uma chapa (20) que funciona z S como barra, cuja altura e igual a. de um troço de escada e oue se liga, ror exemplo por meio de uma Plaqueta e dois parafusos (não renresentad.os) as chapas (20) do troco superior e inferior, seIf the association of the successive sections of the stairway results from the set of the following provisions' positive connection of the fixed sections (7) on the façade (1) through the U-shaped areas (2) and indirect connection, of the movable uprights Z ”to be opened (10 ) _ / intermediate ror of the steps (not shown) and the flat edges ( ⁷ ), and it is important to be able to simultaneously retain each z one. of the mobile narrations of each. change in the fixed part, it corresponds to you but also to free, at different heights, the set of the stairs. For this, a direct connection was made to the coupling and disengagement. For this purpose, the inner face of the fixed flange> V% (7) comprises between the wing. Perpendicular to the inner face of the fixed flange (7) and the neighboring rib (a), a longitudinal groove (19) into which a plate (20) that slides z S as a bar, whose height is equal to. of a stair section and it connects, for example by means of a nameplate and two screws (not shown) the plates (20) of the upper and lower change, if

9existirem. B na chapa (?0) (fig. 1) oue se fixa upa neca de engate (21) (fig. 3 e 5) e aue 0 sistema e comandado pelo braço disparador (18), sendo s peça de engate (21) constituída nor um9 exist. B on the plate (? 0) (fig. 1) or the coupling mechanism (21) (fig. 3 and 5) is attached and the system is controlled by the trigger arm (18), being the coupling part (21) constituted nor um

nerfilado em U (?⁹) cop as costas voltadas para a chapa (⁹0), entre os quais e colocado um eixo (⁹3) que leva um cavaleiro (24) voltado para baixo e forçado por uma mola (25) para essa no, siçao. Em frente desta peça de engate (21) fixada no plano vertical do banzo fixo (7), fica ume peça. (26) (fig. 6) provida de ura saliência (27), fixada no banzo movei (10), saliência, (27) essa que vai prender-se sob o cavaleiro (24), quando se fecha a escada.U-shaped (? ⁹ ) with the back facing the plate ( ⁹ 0), between which is placed an axis ( ⁹ 3) that takes a rider (24) downwards and forced by a spring (25) towards it no, siçao. In front of this coupling part (21) fixed in the vertical plane of the fixed flange (7), there is one part. (26) (fig. 6) provided with a ledge (27), fixed to the movable flange (10), ledge (27) which will be secured under the rider (24) when the ladder is closed.

Esta, peça (26) e geralmente fixada na nervura central (13) do banzo a abrir (10), sendo a parte traseira (28) desta ne ca verticalmente reentrante de modo que 0 nariz (27) se apresenta. mais on. menos no eixo central longitudinal da chana (20). Con>· cebe-se assim facilmente que, quando a escada esta fechada, para nermitir a sua abertura, basta que o nariz (2?) deixe de ser retido pelo cavaleiro (24), e que e necessário fazer subir este e, portanto, a chapa (20), o que e realizado baixando o braço disparador (18). Bara isso, este braço ou manipulo (18) (figs. lb, 3, 7, 1θ) e montado numa extremidade de um. eixo (29) colocado num surorte (3θ) fixado na aleta lateral do banzo (7), passando o eixo (29) stravés deste banzo e sendo sustido na outra extremidade por um sunorte de reforço (41) situado e fixado lateralmente pelas ranhuras (42) e (43) da nervura (β) e posicionado e fixado longitudinalmente nor um. parafuso. rio. eixo esta fixado 0 botão de comendo (50) oue vai actuar na espiga (51) do pinhão Í31) 0 fazer rodar para cima este, nue força a creralheira (32) eucastrada na placa (20) por meio de duas cavilhas (32a), o mesmo sucedendo portento ao cavaleiro (24) da peça de engate (21).This piece (26) is generally attached to the central rib (13) of the flange to be opened (10), the rear part (28) of which is vertically recessed so that the nose (27) is shown. more on. least on the longitudinal central axis of the chane (20). Con> · it is thus easily understood that, when the ladder is closed, to deny its opening, it is enough that the nose (2?) Stops being retained by the rider (24), and that it is necessary to raise it and, therefore, , the plate (20), which is accomplished by lowering the trigger arm (18). That said, this arm or handle (18) (figs. Lb, 3, 7, 1θ) is mounted on one end of one. axis (29) placed on a surreal (3θ) fixed on the side flap of the flange (7), the axis (29) passing through this flange and being supported at the other end by a reinforcing flange (41) located and fixed laterally by the grooves ( 42) and (43) of the rib (β) and positioned and fixed longitudinally nor. screw. River. axis is fixed 0 the starting button (50) or it will act on the spindle (51) of the pinion (31) 0 to rotate it upwards, which forces the crankcase (32) and inserted into the plate (20) by means of two pins (32a) , the same being true for the rider (24) of the coupling piece (21).

-1'0Â fin¹ de forcei’ & abertura da escada colocou-se também no eixo,’· além cio ninhão (31) e comandado pela espiga (51), um braço lon-1'0Â fin ¹ de forcei '& opening of the ladder was also placed on the axis,' · in addition to the nest (31) and commanded by the spike (51), a long arm

mitud.inal abaixador (33) ou ejector que, quando a sua extremida âe angular (34) se afasta da placa (20), vai fazer pressão contra. a nervura central (13) do banzo movei (10).lower mitud.inal (33) or ejector which, when its angled end (34) moves away from the plate (20), will press against. the central rib (13) of the movable flange (10).

Para que todas as pecas de engate (21) colocadas nas chanss (20), tomadas solidarias, possam ser levantadas e, assim, desengatar pecas (26) fixadas no banzo movei (10) antes eme o braço abaixador (33) force o banzo movei (10) a afastar-se do benzo fixo (7), realizou-se na chana do braço abaixador (33), um furo alongado curvo (33a) que permite que a espiga (51), ⁿue se aloja neste furo alongado, oscile de alguns graus antes de ar rastar o braço abaixador (33) em toda a sua altura.So that all the coupling parts (21) placed on the chanss (20), taken together, can be lifted and, thus, disengage parts (26) fixed in the movable flange (10) before the lowering arm (33) forces the flange movable (10) to move away from the fixed benzo (7) is held in Hanna the depressor arm (33), a curved elongated hole (33a) which allows the shank (51), ⁿ u is housed in this elongated hole , swing a few degrees before dragging the lowering arm (33) to its full height.

Do mesmo modo, quando do disparador, este faz rodar lheira (3?), d.eslocando-a. Es cb.ana (20) que serve de barra.Likewise, when the trigger is triggered, it rotates (3?), Displacing it. It is cb.ana (20) that serves as a bar.

e efectuar a abertura da escada se faz funcionar o maninulo (18·) o ninhao (31) que arrasta a crema ta cremallaeira (3?) e fixada naand to open the ladder, operate the handle (18 ·) the nest (31) that drags the crema ta cremallaeira (3?) and is fixed in the

Em cada, andar encontra-se uma.On each floor, there is one.

creralbeira (32) colocada nesta chapa (20) cu barra, ciue actua no seu ninbão (31) respectivo sem, desse modo, fazer oscilar o seu eixo \·?9) e maninulo corresnondentes, o que faz que, nuando se actua no maninulo (1?) do disparador, o seu movimento seja independente do movimento dos outros braços cios outros disparado, res.creralbeira (32) placed on this plate (20) whose bar, ciue acts on its respective nimbão (31) without, thus, making its axis oscillate (· 9) and corresponding handle, which means that, when acting on the lever (1?) of the trigger, its movement is independent of the movement of the other arms with the others fired, res.

* %*%

Alem disso, quando se procedeu a manobra- de abertura da escada e se libertou o manipulo (18), todas as pecas de engate (21) e as chapas (20) tomadas solidarias são levadas ao seu ponto de partida, isto e, para baixo, por uma mola de traeçao (não representada), fixada no braço do banzo fixo (⁷), ror um lado, e à chapa (°0), ror outro.In addition, when the ladder was opened and the handle (18) was released, all coupling parts (21) and plates (20) taken in solidarity are taken to their starting point, that is, to down, by a traction spring (not shown), fixed on the fixed flange arm ( ⁷ ), on one side, and on the plate (° 0), on the other.

A fir fle a cremalheira (3°) ser, por um lado, facilmente nortada ao chara (?0), ser» oue este seja retire da d.o banzo fixo (7) e, por outro lado, facilmente localizada no local correcto na chapa (20), nara que o uinhao (31) d.o disparador se.ia engrena do de maneira correcta para a manobra de abertura dc escada, pre viu-se na cliana 120) a existência de perfurações duulas em todos os locais no seu comprimento onde e possível colocar um disparador. Para isso, esta cremalheira (32) e encaixada na chapa (?0) pelas esnigas (32a) antes da montagem das outras pecas do disparador. Além disso, esta cremalheira ¢32) ja. não poderá ser d.esencaixada da chapa (20) quando as outras pecas do disnarador forem montadas no seu lugar.The rack and pinion (3 °) will, on the one hand, be easily oriented to the chain (? 0), be »removed from the fixed chuck (7) and, on the other hand, easily located in the correct place on the plate (20), make sure that the trigger unit (31) is correctly engaged for the stair opening maneuver, in the cliana 120) the existence of double perforations in all places along its length where it is possible to put a trigger. For this, this rack (32) is fitted to the plate (? 0) by the nipples (32a) before the assembly of the other parts of the trigger. In addition, this rack ¢ 32) already. it cannot be removed from the plate (20) when the other parts of the disconnector are assembled in place.

F- fim r>e as serrar wa ligação entre as pecas (6) e os hanzos fixos (Ό (figs. 1, 3 e a), os entalhes (35/ das peças (β) compreendem, de ur lado lateral, uma garganta redonda (38) na qual vai prender-se 0 nariz arreâordad.o (40), de forma correspondente as pequenas aletas laterais (36) dos banzos fixos (7). Dedo que os entalhes compreendem, uma garganta (40a) e claro que 0 restante do lado lateral vai apresentar a forma de um. nariz arredondado (40). 0 mesmo sucedera para 0 lado correspondente das aletas laterais (36), que vai apresentar uma forma cue se casa ccm a. pp gargante arredondada. Prevendo uma certa folga entre as êir-ersões resrectivas das gargantas (38) e (4θ&) da peca (6) e os narizes (4θ) e as gargantas (38) das ale tas (36), poder-se-a colocar facilmente as pecas (β) nas aletas (36)? com efeito, conôuzir-se-a as uecas (ô) inclinadas er relação as aletas (36), d^F- end r> and the saws for the connection between the parts (6) and the fixed handles (Ό (figs. 1, 3 and a), the notches (35 / of the parts (β) comprise, on the side, a round throat (38) in which the sticky nose (40) will be attached, correspondingly the small side fins (36) of the fixed flanges (7). Finger that the notches comprise, a throat (40a) and clear that the remainder of the lateral side will present the shape of a rounded nose (40) .The same will happen to the corresponding side of the lateral fins (36), which will present a shape that matches with the rounded, rounded pp. a certain gap between the respective êir-ersions of the throats (38) and (4θ &) of the part (6) and the noses (4θ) and the throats (38) of the altas (36), one can easily place the parts (β) in the fins (36) - in effect, the uecas (ô) inclined in relation to the fins (36), d ^

rois endireitem—se rois straighten up as pecas (6) rara em the pieces (6) rare in seguida as finar nor then fine them meio middle d os parafus os (5 ) : screw the screws (5): deste modo, as pecas thus, the pieces (6) e as (6) and the al e ta s al and ta s (36) (36) do of bonzo fixo (7) nao fixed bonzo (7) no poderão separar-se. will be able to separate. Oom referência a fig. 1b, vê-se With reference to fig. 1b, see igualrer equalize te 0 su; te 0 su; porte port cie cie

reforço (41) ov.e vai entalar-se contra a nervura centrareinforcement (41) ov.e will be pinched against the center rib

Pera o poder fazer, esta, nervura (?) compreendeFor the power to make, this rib (?) Comprises

1? teral^ente dois elementos de nhr.r? rectilinea perpendicular e na ^irecçao da extremidade cia nervura (?) e a outra, formada ror duas voltas, uma paralela. e a outra, rerrendicular a nervura G?), com o bordo partido e o ** \ lhe {Anj no oual rode entalar-se o stmorte de reforce 0-1) denervura o ter conduzido inclinado e derois (δ) e, alem disso, de o ter fixado rebati do c ontra.1? terally two elements of nhr.r? perpendicular and at the end of the rib (?) and the other, formed in two turns, one parallel. and the other, rendendicular to the rib G?), with the edge broken and the ** \ him {Anj in the oual rotate the stmorte of reinforcement 0-1) denervervar to have driven it inclined and derois (δ) and, besides in addition, to have it fixed against the other.

a.The.

ongitudir?Imen te na (δ) ror um. parafuso (não representado). Este surorte de reforço (41) apresenta-se mais ou menos sob a forma de uma for auilha oue comrreen.de, ror um. la.do,nujna extremidade um nariz achatado (j-f) e um nariz arredondado (45) na outra face, de ma neira. a no^er colocar-se inclinado e ser endireitado depois na ranhura (1?) da nervura (?) e, por outro lado, nas suas costas, um?· saliência (--6), do lado direito, que vem colocar-se na ranhura (42). Por outro lado, este suporte de reforço (<0), que fia nrolor.ga. rara alem da nervura (τ, vai permitir ficar em fren te ao eixo (2?) do disparador (18) de maneira a servir-lhe de eroio» uma abertura (47) e prevista para. esse efeito. Ao mesmo temo, este surorte de reforço (41) vai servir cie peca distarcisdora, entre 0 ejeetor (33) e a nervura (δ). Deste modo, o surorte de reforço (41) mantém 0 eixo (29) do disparador engrenado correctamente na. cremalheira (32) enfiada na chapa (20) e garante um bom funcionamento das diferentes peças que efeotuam a aherror um lado, as peças (6) sejam pra (2) ancorada parede (1) e oue, tro lado, o surorte de altura de cada disrara.dor (18)ongitudir? Immediately at (δ) ror one. screw (not shown). This surge of reinforcement (41) is presented more or less in the form of a forilha oue comrreen.de, ror um. In addition, a flat nose (j-f) and a round nose (45) on the other side have a flat nose. a no ^ er place yourself at an angle and then straighten it in the groove (1?) of the rib (?) and, on the other hand, on your back, a? protrusion (--6), on the right side, which you put into the groove (42). On the other hand, this reinforcement support (<0), which spins nrolor.ga. rare in addition to the rib (τ, it will allow you to stay in front of the axis (2?) of the trigger (18) in order to serve as a wall "an opening (47) and intended for this purpose. At the same time, this reinforcement surge (41) will serve as a separating part, between the ejector (33) and the rib (δ), thus the reinforcement surge (41) keeps the axis (29) of the trigger correctly engaged in the rack (32) ) tucked into the plate (20) and ensures a smooth operation of the different pieces that effect the aherror on one side, the pieces (6) are for (2) anchored to the wall (1) and hear, on the other hand, the height surge of each shot .dor (18)

FF

_ z_ z

J?or outro lado, como o encaixe mutuo das diferentes reças (6) em relaçao as aletas (36) e (41)? relativarente a neryu ·.On the other hand, how do the mutual fit of the different parts (6) in relation to the fins (36) and (41)? relative to neryu ·.

so arredondamentos coro ura certa, folga num dos elementos de um espano livre pare ^oder introduzir um elemento no outro introdução n?o e realizada apresentando simrlesmente as pecas mas, nelo zthey are roundings with the right one, clearance in one of the elements of a free spanner may introduce an element in the other.

contrario, inclinadas para.otherwise, leaning towards.

lateral, a fixar-se umas nas outras.lateral, to be attached to each other.

fine fim n ao.fine order no.

fia.faith.

(6) são, rois de wa ra vertical (35) n?· qual podem deslizar as pequenas lateEstas dois furos roscados (51) (não rerresentados), colocados um por(6) they are, vertical branches (35) n? · Which can slide the small endsThese two threaded holes (51) (not shown), placed one by one

De acordo com um outro rodo deAccording to another squeegee

Λ» presente invenção, segundo as figs. la e 1c, o suporte de refor•nrimi da, t? (8^f), e substituído pelo suporte (41Presente »the present invention, according to figs. la and 1c, the reinforcement support • nrimi da, t? (8 ^f ), and replaced by the support (41

’), e a ranhura (42) e suenauanto a ranhura. (45) foi substituída ror na aual se encaixa o nariz (-<4*) do suporte’), And the groove (42) and replace the groove. (45) has been replaced as usual, the nose (- <4 *) of the holder fits

K ZK Z

’) e colocado horizontalmente na garganta.’) And placed horizontally in the throat.

rois faz-se oscilar par? cirna, sendo lurar com o zrois does it swing even? cirna, being lure with the z

auxilio de dois entalhes na garganta uma aargan(?’) e dedo no seu zaid of two notches in the throat an aargan (? ’) and finger in its z

ja foi mencionado.has already been mentioned.

o furothe hole

CÍÍSll rador. Bste modo de realização tem a vantagem de melhorar ia zCISllER. This embodiment has the advantage of improving ia z

maniz 'do mais risrido o disparador quando se aplica um esforço no furei onarmaniz 'laughs the trigger when an effort is applied in the drilling

Por outro lado, seuundo umOn the other hand, your world

iil iil —J -J |g | g PT o PT o O4E O4E a The Cl—· Cl— ·

outro modo de realizarao de presente invenção, alem de abertura manual, pode conz ceber-se um sistema de abertura electrico cia escada, ηοτ meio de zAnother embodiment of the present invention, in addition to manual opening, can be provided with an electronic opening system for the stairs, ηοτ means of z

contactores cue comanda® um motor redutor de corrente continua alimentado ror uma. bateria com. carga permanente. Faro isso, rreviu-se uma garganta. (52) situada no banzo (?) a fim de nela.cue comanda contactors a dc motor powered by one. battery with. permanent charge. That's it, a throat narrowed. (52) located in the flange (?) In order to it.

z se poder inserir um cabo electrico.z if an electric cable can be inserted.

A fim de evitar o deslocamento lateral dos raros de anoio das rolas de eouili-rager (não representadas), colocadas no interior dos degraus, e impedir assim a deterioração das mesmas, nrevirar-se ^uas ranhuras em V (53) no banzo (i).In order to avoid the lateral displacement of the eouili-rager doves rare (not shown), placed inside the steps, and thus prevent their deterioration, turn the V-grooves (53) in the flange ( i).

* fW A» \ a presente invenção na o se limita as formas de realiza,coo descritas e nao se saira do seu arbixo pela inrrohicao de modifícacoes.* fW A »The present invention is not limited to the embodiments, as described, and will not be left out of its scope by the introduction of modifications.

Claims

1, - Improvement in emergency folding stairs in urn <* Aj

01; several successive elements upwards, whose elements are constituted, each. one, by two flanges of angles arranged in front of each other in a way, to oppose the inner faces, articulated steps in the said bonbons, short inner faces • neruendicular to the plane of the stair in its sue ??, respectively. be yours at the edge of the. above the first flange and at the angle of the second, two longitudinal ribs, each located in front of a rib on the other flange and provided, at regular intervals in the longitudinal direction, with face-to-face perforations that receive axes of oscillation na.ro. the articulation of the degrees, characterized by the flange of the fixed angle, that is, what must be placed on the side of the façade, on the one hand, of each. side, outside and side, a flap parallel to the plane of the façade, the one on which they are folded, ^ and each side, pieces that have a notch and will extend into the end of these links lateral, characterized by these lateral links having one. such configuration does not swirl to place itself inside the. throat. \, 38) of the notch of each piece, heard and fixed by means of one or more screws in a

pretend location; Ldo with the length of the fu or fu respectively elongated roses longitudinal parallel lines (4) from which it is

each one of one. piece, anchored on the façade in shape, of piece, of anchoring tighten and retain by its handles the fixed flange

tro side, ‘ΠΓίΤ’ 0 you, in between your fin haha, ura slot. dunl <

fixed banzo acid ( ⁷ ) comprise interiorly-16-

Da 'allows the edges of a plate (? 0) to be slid with a length equal to that of a stair element, the said plate (20) of each element being intended to be successively connected to another, in a manner to ensure continuity and a. connection along the entire height of the ladder and means of maintaining the folded and unfolded rosicão, and by successive perforations, allow the insertion of an Í32 rack.) in the places determined to place a trigger (18), for example 3θ in 3θ cm , these same places determined on the side flap of the fixed flange (7), by Successive Drilling designed to receive a rare drilling gauge for the execution of the drilling for the opening of the sunor and the trigger axis.

2.- Improvement in the folding help stairs according to claim 1, characterized by, to ensure ur? easy operation of the succession of the plates (.20), if pinions (31) and racks (32) are provided that allow for the engagement, disengagement and 0 spacing of the two stair noses, providing for a reinforcement support (il) that goes on, fitting the rib. central on the perpendicular lateral flange of the fixed flange ( ^σ ) and fixed by screws or bolts threaded with nut, serving as an oscillating bearing for the trigger shaft, preventing the deformation of the lateral flange of the fixed flange and, in this way, maintaining an undefined intramurality of the nest ('> 12 and the rack (52).

z

3.- ^ xperfection in the folding rescue ladders of c-t according to coir. claim 1, characterized in that the streak in. U ¢ 2)

Z / \ oncoroâa by means of an extensible screw \ 5) be provided, definitively · in the narede and, in each of its fins, of two longitudinally arranged pipes (

4 / In the oua-is, pass the two screws (5) that hold the pieces (6) on the one side on the other and on the oval and maintained and can slide, for example as a consequence of the vertical taper, the fixed angle bracket ( ?) cia staircase that includes longitudinal ribs (8) in which to provide perforations (9) for the axes of oscillation of the steps, the elongated hole being. eccentric U-piece (?) in relation to the axis of the way to -remit one. maximum lateral displacement in order to perfectly align all vertical expansion parts (δ) even z

ove the anchoring screw in the building must be moved laterally ·

A.- Improvement of the folding emergency ladders according to cop ¹ , according to one of claims 1 and 2, characterized by the inner face of the fixed hook (7) with a gap between the vertical wing a and the face of the fixed hook ( ⁷ ) and the viairZia rib (β), see the double longitudinal groove (193 in oua.1) a plate (20) that works as a bar can be slid, the height of which is the same as the laughing section of the staircase and which connects in the example in the middle of a nameplate and two screws the plates (? 0) of the upper and lower section, if any, and because the plate (20) fixes a coupling joint (21) and the system is controlled by the firing arm (18), the coupling part (21) constituted by a U-shaped profile (22) with the back facing the plate (20), between which is placed an axis (23) that takes a rider (24) turned rare low and forced nor a spring (25) for this nosieão and nor stick that, coupling coupling (? 1) would be solid in the vertical plane

of 1 > fixed anzo (7), be turned u neca Í26), provided with a nose (27), fixed on the banzo I moved (10), going to the nose (27) *> · - if under 0 cavai ' eiro (24) roaming the staircase is closed and normal

this need (26) is fixed to the central rib (13) of the flange a. open (10), with the rear nose (28) of this piece, reentrant verti calming so that the nose (2?) sticks out. more or less on the longitudinal axis of the plate

5.- Improvement of the folding emergency ladders according to one of the following sections 2 to 4, characterized by a disengaging arm (1P) being mounted on an end of a shaft (29) placed in a support (30) fixed on the wing, side of the flange (7), passing the axis (??) through that flange and being supported, at the other end, by a reinforcement support (41) located and fixed laterally by the notches (42) © (43) of the rib (8) © located and fixed longitudinally by a spindle, and rotating on the axis (29) to fix the blush pressure button (5θ) that will act on the groove (51) of the cradle (31) and rotate the latter, forcing the on-board crerallieira (32) on the plate. (20) by means of two pegs (32a) rare above, and therefore the rider (24) of the reç? hitch (21), and nor, in order to force the opening of the ladder, if Vralrente is placed on the axis (29) to, there of the nest (31) and commanded in it peg, (51), a longitudinal arm goes down, pain (35) or ejector aue, when the, its angular end (34) moves away from the plate (20), it will push the outer face of the movable flange (10) and nor, so that all the coupling parts (21) are placed on the plates (20) solidary sockets can be raised and disengages ?? thus necas (26) fixed on the flange novel (10) before the arm a / down (33) forces the movable flange (10) to move away from the fixed flange k ' ⁷ ), if it has been made on the plate. of the arm a.ha.ixad.or (33) z \ / v

n.m íhiro ciou.m curved mode (33a.) that even the pin. (51) which lodges in that elongated hole, oscillate a few degrees before dragging the boom (33) and opening the ladder a.

all a. your clure

F ** ⁷ * ζImproved on the foldable emergency ladders according to claims 1 to 4, characterized in that the rib (s) has a rare curve or it ends in a throat (8 ') in the area

The nose fits the nose Caa ') of the reinforcement support (41 ^f ) that it is. provided with one. fu.vo (9 ') »the reinforcement support (41') is supported on yours. lu.ffar nor a notch made on each side of this and see? There is a distance between cylindrical O-lc) in which an inner hole has been opened through which the shaft (.29) passes, which will lodge in the hole (9 ') mentioned above, with the spacer (41c) still having the function of avoiding 0 warping of the reinforcement support (41 ').

7.- Improvement of the folding emergency ladders in accordance with claims 1 to 6, characterized by, when a handle kl8> is operated, it rotates the respective pinion (31) or drags the displacement of the crer.alheira (32 ) corresponding to the plate (? 0) that serves as a bar, and another rack (32) has been fixed on each floor, each rack (32) acting on this plate (20), or bar, on the floor your. pinion (31) respective without, therefore, faqa turning its 0. axis (29) and the corresponding handle (18.),

The rv ’<

there is still action on the trigger arm and is independent of the movement of the other trigger arms.

8.- Improvement in the folding emergency ladders according to claims 1 to 7, characterized in that a throat (52) is inserted in the flange (d) to introduce the electrical cable that connects it, the different elements of the system , electri co ladder opening, and in that they open in the same flange (7) two V grooves (53) whose function is to prevent lateral ^ deslocavento of Racos support d.as of doves ¹ placed on eauilitra.ver inside the dep / raus and thus prevent deterioration z

d are last.

z

Improvement in folding emergency stairs of

Λ> Z according to claims 1 to 8, characterized by un or va twtt

Z several electrical contactors control a motor

all for ur a permanently charged battery or any other form of z electric you already suitable, either activate the plate (? 0) or edge to laugh at elturc 'and therefore the pinions and levers below xa ras o j other manual triggers that would be

placed in the flange (?) of the stairs, even if they have their axes (29) and the levers (18) immobilized.