PT1147339E

PT1147339E - Universal built-in spotlight support box and relative fitting tool

Info

Publication number: PT1147339E
Application number: PT99956329T
Authority: PT
Inventors: Celestino Costa
Original assignee: Celestino Costa
Priority date: 1998-11-25
Filing date: 1999-11-16
Publication date: 2007-03-30
Also published as: ITFO980031A1; IT1306388B1; DE69933701D1; AU1295800A; ATE343092T1; EP1147339A1; WO2000031466A1; EP1147339B1

Abstract

This special box is a kind of universal built-in box made up of a main body (C) and a cap which is intended for housing spotlights supported by spring-arms (S). The main body contains an inner series of step circles (A) which form a winding spiral according to the shape of the box. Such rings correspond to as many outer indents to be chosen in accordance with the type of spotlight to install. The cap can be exactly coupled with the main body and further reduced in its upper part as well. This way, three different box volumes can be obtained and used accordingly on the basis of the length of the spotlight to be installed. A specific tool for installation allows a quick and exact positioning of the box prior to any fixing procedure.

Description

DESCRIÇÃODESCRIPTION

"CAIXA DE SUPORTE DE PROJECTOR UNIVERSAL EMBUTIDA E FERRAMENTA DE MONTAGEM ASSOCIADA"" BUILT-IN UNIVERSAL PROJECTOR SUPPORT BOX & ASSOCIATED MOUNTING TOOL "

Esta invenção refere-se a uma caixa de suporte a utilizar de modo embutido numa parede de alvenaria destinada a receber um projector, em que esse projector pode ser um qualquer seleccionado de múltiplos projectores com diferentes dimensões, compreendendo a referida caixa de suporte um compartimento e tendo uma abertura frontal adaptável de modo a conformar-se à dimensão do referido projector seleccionado, caracterizada por o referido compartimento se afunilar para o interior na direcção da sua extremidade frontal de modo a formar uma sequência disposta axialmente de degraus circulares concêntricos de diâmetro decrescente para que, em utilização, quando um dado degrau se conforma ao referido projector seleccionado para montar no compartimento, a eliminação dos degraus distais respectivos do compartimento, a partir desse dado degrau, permita obter uma abertura frontal conformada à dimensão do referido projector seleccionado. A invenção também se refere a um método de instalação da caixa e a uma ferramenta utilizada para esse efeito. Conhece-se, a partir, por exemplo, do documento DE 4312661A, uma caixa de suporte de acordo com o preâmbulo da reivindicação 1. A caixa pode ser facilmente instalada na alvenaria, utilizando uma ferramenta de montagem composta por um elemento com três braços em forma de estrela e um pino móvel no interior. A configuração especifica do sistema de aplicação permite obter 1 um posicionamento rápido e preciso da caixa relativamente ao tijolo, deixando espaço suficiente para a subsequente aplicação de gesso. 0 objectivo da presente invenção consiste em ultrapassar os problemas e proporcionar ao instalador de projectores uma caixa incorporada que pode ser facilmente adaptada no local de modo a acomodar diversos projectores de diferentes dimensões, e também adequada para ser instalada temporariamente durante a montagem com poliuretano expandido ou argamassa de cimento por meio da sua ferramenta.This invention relates to a support box to be used embeddedly in a masonry wall for receiving a projector, wherein said projector may be any one selected from multiple projectors of different dimensions, said support box comprising a housing and having a front aperture adaptable to conform to the size of said selected projector, characterized in that said compartment tapers inwardly towards its front end so as to form an axially disposed sequence of concentric circular steps of decreasing diameter to that in use, when a given step conforms to said selected projector for mounting in the housing, the elimination of the respective distal steps of the housing from said step allows a front opening conforming to the size of said selected projector to be obtained. The invention also relates to a method of installing the carton and to a tool used for that purpose. A carton according to the preamble of claim 1 is known from DE 4312661A, for example. The carton can be easily installed in the masonry using a mounting tool composed of a member with three arms in star shape and a movable pin inside. The specific configuration of the application system allows a quick and precise positioning of the carton relative to the brick, leaving sufficient space for the subsequent application of plaster. The object of the present invention is to overcome the problems and provide the projector installer with a built-in enclosure that can be easily adapted in place to accommodate various projectors of different dimensions and also suitable to be installed temporarily during assembly with expanded polyurethane or cement mortar by means of its tool.

Também se deve ter em consideração que a nova caixa é concebida para permitir uma correcta dissipação de calor.It should also be noted that the new housing is designed to allow proper heat dissipation.

Para além disso, mesmo que se destine, principalmente, a resolver qualquer espécie de problema prático relacionado com a instalação do projector em paredes/tectos de tijolo ou cimento, esta caixa especial também pode ser empregue como compartimento seguro e isolado para o projector, transformador e respectivas ligações eléctricas.In addition, even if it is mainly intended to solve any practical problem related to the installation of the projector in walls or ceilings of brick or cement, this special box can also be used as a safe and insulated compartment for the projector, transformer and their electrical connections.

Outras qualidades e pormenores irão ser descritos com o auxilio de 16 desenhos que devem ser apenas considerados como indicação. - A Fig. 1-2-3 mostra as vistas laterais do corpo principal da caixa; - A Fig. 4 mostra o corpo principal da caixa vista de cima; - A Fig. 5-6 mostra a tampa da caixa vista, respectivamente, de cima e de baixo; - A Fig. 7-8 mostra as vistas laterais da tampa da caixa; 2 - A Fig. 9-10 mostra as variações possíveis no volume da caixa de acordo com o posicionamento ou redução da tampa através de corte; - A Fig. 11-12 mostra um corte do dispositivo de 3 braços da ferramenta especial para instalar a caixa incorporada e o dispositivo visto de cima; - A Fig. 13 mostra um corte da haste que desliza no interior do dispositivo de 3 braços; - A Fig. 14 mostra, quer a haste quer o dispositivo de 3 braços como um todo, formando, deste modo, a ferramenta especial para instalar a caixa incorporada; - A Fig. 15 mostra um corte vertical de uma instalação de caixa incorporada através do suporte especial; - A Fig. 16 mostra um corte vertical de uma instalação de projector depois de terminada. A partir destas imagens pode ver-se, em primeiro lugar, como é que esta nova caixa incorporada é composta por um corpo principal e uma tampa com diferentes fendas de posicionamento.Other qualities and details will be described with the aid of 16 drawings which should only be considered as an indication. - Fig. 1-2-3 shows the side views of the main body of the carton; Fig. 4 shows the main body of the carton viewed from above; - Fig. 5-6 shows the lid of the box viewed, respectively, from above and below; Fig. 7-8 shows the side views of the carton lid; 2 - Fig. 9-10 shows the possible variations in the volume of the carton according to the positioning or reduction of the cap by cutting; Fig. 11-12 shows a section of the 3-arm device of the special tool for installing the built-in box and the device viewed from above; Fig. 13 shows a section of the rod sliding inside the 3-arm device; Fig. 14 shows both the rod and the 3-arm device as a whole, thus forming the special tool for installing the built-in box; Fig. 15 shows a vertical section of a box installation incorporated through the special support; - Fig. 16 shows a vertical section of a projector installation after completion. From these images it can be seen, firstly, how this new built-in box is composed of a main body and a cover with different positioning slots.

Cada peça é obtida através de moldagem e é fabricada em material plástico (possivelmente em cores luminosas) de modo a obter uma melhor reflexão da luz e menor absorção de calor. O corpo principal e/ou a tampa desta caixa possuem algumas peças pré-cortadas prontas a serem retiradas em caso de necessidade para deixar passar bainhas de fios eléctricos e para ocorrer dissipação de calor utilizando mais bainhas ou condutas que atravessam o material de montagem da caixa e atingem as zonas ocas dos tijolos. Se necessário, também podem atingir zonas exteriores à parede. 3 0 corpo principal, que tem uma forma cónica, é mais largo no topo, para que possa ser empilhado durante o armazenamento e transporte, e mais pequeno no fundo. Ambas as extremidades são abertas. A extremidade superior, que tem um diâmetro superior e alcança a parte interna da parede, tem que ser fechada por uma tampa, enquanto que a extremidade inferior, que é utilizada para a instalação do projector, sobressai como um ponto de referência para o acabamento com gesso. Com essa finalidade, foi concebido um dispositivo especial (vide Fig. 11-12-13 e 14) que permite um posicionamento e proeminência perfeitos da caixa, bem como o seu encaixe correcto durante os procedimentos de montagem (seja com argamassa de cimento, resinas expandidas, etc.). 0 corpo principal contém uma série interna de círculos em degrau que formam uma espiral de enrolamento de acordo com a forma da caixa. Estes anéis correspondem a outros tantos entalhes a escolher de acordo com o tipo de projector e, ao mesmo tempo, permitem uma melhor fixação dos braços de mola internos directamente sobre os níveis dos anéis.Each piece is obtained through molding and is made of plastic material (possibly in luminous colors) in order to obtain a better reflection of the light and less absorption of heat. The main body and / or the lid of this carton have some pre-cut parts ready to be withdrawn if necessary to allow electric wire sheaths to pass through and for heat dissipation to occur using more sheaths or conduits traversing the carton mounting material and reach the hollow areas of the bricks. If necessary, they can also reach areas outside the wall. The main body, which has a conical shape, is wider at the top, so that it can be stacked during storage and transport, and smaller at the bottom. Both ends are open. The upper end, which has an upper diameter and reaches the inside of the wall, has to be closed by a lid, while the lower end, which is used for the installation of the projector, stands out as a reference point for finishing with plaster. To this end, a special device (see Fig. 11-12-13 and 14) has been designed for perfect positioning and prominence of the housing, as well as its correct fit during assembly procedures (whether with cement mortar, expanded, etc.). The main body contains an inner series of step circles forming a winding spiral according to the shape of the carton. These rings correspond to as many notches to choose according to the type of projector and, at the same time, allow a better fixation of the internal spring arms directly on the levels of the rings.

Olhando, com mais atenção, para a caixa como um todo (vide Fig. 1-2-3 e 4) pode ver-se que o corpo principal é quase cónico no fundo e consiste numa série de anéis com diâmetros crescentes que se adaptam a qualquer tipo de projector. A parte superior tem uma forma idêntica a duas secções laterais (P) que, viradas em direcções opostas, permitem que os braços de mola do projector se abram correctamente.Looking more closely at the box as a whole (see Figs. 1-2-3 and 4) it can be seen that the main body is almost conical at the bottom and consists of a series of rings with increasing diameters that adapt to projector. The top is shaped like two side sections (P) which, facing in opposite directions, allow the spring arms of the projector to open properly.

De modo a fazer com que a remoção da parte sob o anel escolhido para a montagem do projector seja mais fácil, a ligação do anel (A) é pré-cortada dado que está limitada a secções com pouca espessura. Para além disso, os procedimentos 4 de corte podem ser facilmente efectuados por meio de uma serra tico-tico e são ainda mais fáceis devido às fendas situadas na parte de fundo da secção (A) . Junto da borda superior do corpo principal, existem algumas secções (B) pré-cortadas que permitem - se necessário - uma abertura correcta para deixar passar fios eléctricos. Dado que a altura da caixa pode ser, consideravelmente, alterada devido ao corte da mesma - a ser efectuado de acordo com o diâmetro do projector a instalar, bem como devido às suas dimensões globais - a tampa foi dotada com duas posições (Q e R) diferentes que permitem o acoplamento à caixa. A própria caixa também pode ser reduzida se for cortada ao longo da linha pré-cortada (C) . Deste modo, disponibilizam-se três volumes diferentes e podem ser, consequentemente, utilizados (Fig. 9-10). A tampa (Fig. 5-6-7-8) está adaptada e dimensionada de acordo com a borda superior do corpo principal da caixa. Uma vareta (F) central ajuda a definir uma conexão possível. Um sistema (E) de vedação circunda-a e está acoplado, de modo preciso, à ferramenta de aplicação (na área M) concebida para os procedimentos de fixação. Dois espigões de plástico definem a preparação de acoplamento do dispositivo (M) que pode, deste modo, ser removido, depois da caixa ter sido fixada na parede, simplesmente rodando-o na direcção oposta à utilizada para o acoplamento. A ferramenta de instalação (vide Fig. 11-12-13-14) é composta por um dispositivo radial de 3 braços (Fig. 11-12) e uma secção plana (L) de encontro à qual a borda de fundo da caixa vai ser, eventualmente, posicionada. Esta secção é mais baixa do que os três braços (I) que se esticam na direcção da parede e por cima do furo destinado a alojar a caixa e o 5 material de fixação (argamassa de cimento, resinas expandidas, etc.) . A diferença em altura entre a secção (L) e os braços (I) permite uma instalação correcta (proeminência) da caixa e a colocação de gesso suficiente para posicionar a armação do projector, que é mantida na posição devida pelos braços de mola típicos de um qualquer projector incorporado. 0 dispositivo radial também possui uma secção cilíndrica, que sobressai do lado inferior, que está centrada e é perpendicular à secção (L) plana. Existe uma fenda (U) de bloqueio através da qual se pode bloquear facilmente a vareta mostrada na Fig. 13. A parte superior da vareta está equipada com um dispositivo (M) que bloqueia a caixa de encontro à secção (L) plana.In order to make removal of the part under the ring chosen for the assembly of the projector easier, the connection of the ring (A) is precut since it is limited to sections with little thickness. In addition, the cutting procedures 4 can be easily performed by means of an optical saw and are even easier due to the slots located in the bottom part of the section (A). At the top edge of the main body there are a few pre-cut sections (B) which allow a correct opening to pass electric wires. Since the height of the carton can be considerably altered due to its cut - to be made according to the diameter of the projector to be installed as well as its overall dimensions - the cover has two positions (Q and R ) which allow coupling to the carton. The carton itself may also be reduced if it is cut along the pre-cut line (C). In this way, three different volumes are available and can therefore be used (Fig. 9-10). The cap (Fig. 5-6-7-8) is adapted and dimensioned according to the upper edge of the carton main body. A central rod (F) helps to define a possible connection. A sealing system (E) surrounds it and is precisely coupled to the application tool (in the area M) designed for fastening procedures. Two plastic spigots define the coupling preparation of the device (M) which can thus be removed, after the carton has been fixed to the wall, simply by rotating it in the direction opposite to that used for the coupling. The installation tool (Fig. 11-12-13-14) consists of a 3-arm radial device (Fig. 11-12) and a flat section (L) against which the bottom edge of the housing goes be eventually positioned. This section is lower than the three arms (I) which extend in the direction of the wall and over the hole intended to house the housing and fastening material (cement mortar, expanded resins, etc.). The difference in height between the section (L) and the arms (I) allows a correct installation (prominence) of the box and the placement of plaster sufficient to position the projector frame, which is held in position due to the spring arms typical of projector. The radial device also has a cylindrical section protruding from the underside, which is centered and is perpendicular to the flat section (L). There is a locking slot (U) through which the rod shown in Fig. 13 can be easily locked. The upper part of the rod is equipped with a device (M) that locks the housing against the flat section (L).

Os dois espigões verticais supra mencionados, que se esticam (opostos um ao outro) desde o dispositivo mostrado na Fig. 13, ajudam a manter a tampa da caixa correctamente encaixada.The two above-mentioned vertical spikes, which extend (opposite each other) from the device shown in Fig. 13, help to keep the lid of the carton correctly engaged.

Sempre que a caixa tenha que ser embutida num tecto, a vareta colocada no fundo da caixa irá ser aplicada num pilar extensível de modo a criar uma estrutura que fique em tensão entre o pavimento e o tecto. Deste modo, a ferramenta de instalação irá ser suportada por esta até que terminem os procedimentos de fixação. Podem utilizar-se três buchas em alternativa à barra extensível supra mencionada em caso de tectos extremamente altos ou sempre que a caixa tenha que ser embutida numa parede vertical. A caixa pode, deste modo, ser 6 fixada, temporariamente, no tecto/parede por meio das suas fendas (G) especiais existentes nos braços.Whenever the box has to be embedded in a ceiling, the rod placed in the bottom of the box will be applied to an extendable pillar so as to create a structure that is in tension between the floor and the ceiling. In this way, the installation tool will be supported by it until the fixing procedures are finished. Three bushings may be used as an alternative to the aforementioned extensible bar in case of extremely high ceilings or whenever the box has to be embedded in a vertical wall. The housing can thus be temporarily fixed to the roof / wall by means of its special slots (G) in the arms.

Mesmo que as caracteristicas globais, quer da caixa quer da ferramenta de instalação, aqui descritas permaneçam basicamente as mesmas, podem ocorrer alterações ou variações abrangidas pelo âmbito das reivindicações anexas.Even if the overall characteristics of both the carton and the installation tool described herein remain basically the same, changes or variations may occur within the scope of the appended claims.

Lisboa, 9 de Março de 2007 7Lisbon, March 9, 2007 7

Claims

A support box to be used in a manner embedded in a masonry wall for receiving a projector, wherein said projector may be any one selected from multiple projectors of different dimensions, said support box comprising a housing and having a front opening adaptable to conform to the size of said selected projector, characterized in that said compartment tapers inwardly towards its front end so as to form an axially disposed sequence of concentric circular steps of decreasing diameter so that, in use , when a given step conforms to said selected projector for mounting in the housing, the elimination of the respective distal steps of the housing from said step allows a front opening conforming to the size of said selected projector to be obtained.

Support box, as in the preceding claim, characterized in that it is composed of a main body and a cover.

Support box as in the preceding claim, characterized in that the main body is open at both ends, wherein the lower one is intended for insertion of a projector after adjustment to the diameter of the latter, while the upper aperture is intended for the application of a and is formed so that its diameter increases upwardly, also at the top, to enable stacking of elements and reduction of overall dimensions during storage and transport.

Support box as in claim 2 or 3, characterized in that the carton volume varies according to the different levels of positioning of the cover.

Support box as in the preceding claim, characterized in that it can also be reduced in its upper part by cutting it along a line (C) in order to install the cover in an even smaller volume (1).

Support box as in claim 2, characterized in that the cover, independently of the shape, is provided with a central rod (F) and two lugs (E) which extend from the cover in diametrically opposed positions enabling the fixing of said rod cover and subsequent screwing of the housing by a tool that holds it firmly in the proper position while being fixed with cement mortar or other means.

Support box as in claim 6, characterized in that the pair of tongues (E) extending on the underside of the cover define the coupling element of the body (M) for the tool which is used for screwing and securing in the position due to the box, and that can be removed, after fixing the box to the masonry, without a reverse screw-in movement.

Support box as in claim 4, characterized in that the housing has, in its lower part, a flat, essentially circular shape and is formed by a sequence of rings of increasing diameter from which it is chosen which is most suitable for the insertion of the projector, and in that in the upper part, whose diameter increases again in the upward direction, there is a lateral enlargement with two diametrically opposite sections (P) allowing a wider and more effective spread of the arms (S) of the projector.

Support box as in claim 8, characterized in that, in order to facilitate removal of the part underlying the ring chosen for insertion of the projector, the sequential engagement of the rings (A) is effected by means of fracture lines consisting of sections with little thickness that alternate with openings and extensions, leaving the last ones outwards so as not to alter the perfect circularity of the seat in which the projector is inserted.

A method of using a tool to embed in masonry a support box according to any one of claims 1-9, comprising the following steps: an element (L) acting against the lower edge of the carton with a section (L ) in relation to the three arms (I) extending from this section to rest on the masonry structure (O) after forming the cavity intended to house the carton, and securing the carton by means of material (P) of filling in the cavity outside the carton, allowing the difference in height between the flat section (L) and the arms (I) that the carton protrudes sufficiently from the cavity to mold, at the same level, plaster (Q) against which a frame (R) of the projector, held in position due to the force of the two spring arms, will rest. 3

Tool for securing the carrier box of any of claims 1-9, characterized in that it comprises a member with three star arms, centered and perpendicular to a flat section (L), a locking pin or nut (U) (M) which is adapted to act against the housing cover, allows insertion of the perforated component (M) into the rod (F) (E) after the rotation of the removable rod (N).

Tool for securing the support box as in claim 11, characterized in that it further comprises an extendable rod, so that, when the built-in support box is to be inserted in a ceiling, the removable rod (N), suitably prepared at the end (L) for the time required to secure the carton, or in that it further comprises slits in the arms, so that, in the case of the upper part (L) in the case of the ceilings being particularly high, or when the built-in support box has to be engaged in a vertical wall, as an alternative to the abovementioned extendable rod, it is envisaged to use three expansion screws to temporarily fix the element (L) to the masonry through the relevant slots (G) in the arms. Lisbon, 9 March 2007 4