WO2005078340A1

WO2005078340A1 - Recessed lamp

Info

Publication number: WO2005078340A1
Application number: PCT/IT2004/000739
Authority: WO
Inventors: Lapo Grassellini
Original assignee: Targetti Sankey S.P.A.
Priority date: 2004-02-17
Filing date: 2004-12-30
Publication date: 2005-08-25
Also published as: EP1716364A1; ITFI20040033A1

Abstract

A recessed lamp suitable for being housed in a recessed hole formed in a panel of a wall or a false ceiling, comprising a reflector (1), means (4) for supporting a light source therein and electrical connection means (3) attached to the reflector. A tubular support (6) is also provided with an outer edge, which can be attached to the reflector and with such dimensions that it can be engaged within the hole, a pair of diametrically opposite wings (7) extending outwards from the tubular support at a present distance from the outer edge and intended to rest on the panel and to be fixed to it when the support is inserted in the hole, in such a way that its external edge is flush with the false ceiling or wall.

Description

TITLE RECESSED LAMP DESCRIPTION

Field of the Invention The present invention relates in general to the area of lighting fixtures and more particularly relates to a recessed lamp, that is to say a lamp suitable for being recessed in a panel forming a false ceiling or a wall.

Background of the Invention It is known that in conventional recessed lamps the reflector, housing the light source is connected to a generally tubular support ending with a flange. The panel forming the false ceiling, or the wall, wherein the lamp is to be recessed, has a special recessing hole with dimensions compatible with those of the tubular support of the lamp in order to allow insertion of the latter in said hole, making the flange of the support abut externally against the panel. The lamp can be secured to the false ceiling, or to the wall, by screws which connect the flange to the panel, or by elastic means integral with the tubular part of the support and acting on the inner side of the panel to maintain the flange in forced contact against the outer side. The attachment flange is therefore an essential functional element in recessed lamps proposed to date. However the presence of the attachment flange often represents an element that negatively affects the appearance of the false ceiling or of the wall wherein the lamp is recessed. The effects of the discontinuity caused by the attachment flange may be limited, if necessary, by colour techniques (for example by making the flange in the same colour as the back panel) yet cannot be completely eliminated. Traditional recessed lamps cannot therefore meet this aesthetic requirement.

Objects and Summary of the Invention The object of the present invention is to provide a recessed lamp with a structure such as to meet the aesthetic need mentioned above and which, in particular, does not require the presence of an attachment flange that remains visible after fixture installation. Another object of the present invention is to provide a recessed lamp which achieves the aforesaid object without detriment to its functional needs, in particular as regards the ease of assembly and of maintenance . These objects are achieved with the recessed lamp according to the present invention wherein the reflector is attached to a tubular support, with dimensions such that it can be engaged within the recessing hole made in the panel forming the false ceiling or the wall and having a pair of diametrically opposite wings extending outwardly from said support and intended to rest on said panel and to be attached thereto when the support is inserted in the recessing hole. Advantageously the recessed lamp according to the present invention can be used in combination with false ceilings or walls of considerable thickness, as in the case of false ceilings made of plasterboard, wherein the thickness is in the range of about 10-16 mm. Brief description of the drawings Further features and advantages of the recessed lamp according to the present invention will become apparent from the description set forth below of preferred embodiments, given by way of a non-limiting example with reference to the accompanying drawings, in which: Figure 1 is a perspective view from above of a first embodiment of the recessed lamp according to the invention; - Figure 2 is a perspective view from below of the recessed lamp of Figure 1; Figure 3 is an enlarged cross sectional view of the lamp taken along line III -III of Figure 1 ; Figure 4 is a perspective view from above of a second embodiment of the recessed lamp according to the invention; Figure 5 is a perspective view from below of the recessed lamp of Figure 4 ; Figure 6 is a cross sectional view of the recessed lamp taken along line VI -VI of Figure 4.

Detailed description of the Invention Referring to Figures 1, 2 and 3, 1 denotes a reflector of conventional shape and 2 a bridge bracket externally fixed thereto and holding electrical connectors 3 for connection to the power supply main and a pair of conventional lamp holders 4 for the light source, not shown, facing the reflector 1 internally from two diametrically opposite windows 5 formed therein. A tubular support 6 extends around the opening of the reflector 1. Two radial wings 7 project outwardly from the tubular support 6 at diametrically opposed positions.

In the present embodiment of the invention the tubular support 6 has a circular section with a slightly larger diameter than the maximum diameter of the reflector 1, in such a way that the latter can be housed inside it. The length of wings 7 is not greater than the diameter of the support 6 (in particular, it is equal in the present embodiment) , so as to allow the support to be inserted in the recessing hole (not shown) formed in the panel constituting the false ceiling or the wall where the lamp is to be installed. Two diametrically opposed right-angled plates 8 rise up from the wings 7 and the two ends of the bridge bracket

2 are connected to the plates 8 in such a way as to secure the reflector 1 to the tubular support 6. More particularly, respective longitudinal slots 9 are formed at the ends of the bridge bracket 2 , each one made up of two portions of different width, while the two plates 8 have respective seats 10 for engaging screws 11. The screws 11 engage simultaneously in the respective seats 10 and in the slots 9 aligned therewith to tighten the ends of the bridge bracket 2 against the plates 8, locking the reflector 1 in relation to the tubular support 6. The shape of the slot with double width forms, with the screws 11, a bayonet coupling which facilitates assembly of the reflector 1 on the plates 8 in that it allows hooking of the ends of the bridge bracket 2 to the screws 11 already engaged in the respective seats 10. Once the tubular support 6 has been placed in the recessing hole, with the wings 7 resting on the inner side of the panel, it is attached to the panel by self- threading screws (not shown) whose heads are finally concealed by plastering. The free edge of the wings 7 is advantageously bent to increase their rigidity. The height of the tubular support 6, or the distance of the wings from the opposite edge, called external edge, of the support 6, may be different according to the thickness of the panel forming the false ceiling or wall wherein the lamp has to be recessed. In particular the recessed lamp according to the invention has been designed for recessing in false ceilings or walls of considerable thickness, for example those made in plasterboard. The standard thickness in this case is generally 12.5 or 15 mm. Advantageously the height of the tubular support 6 can be provided as 16 mm and shims 12 can be applied when the lamp is to be installed in false ceilings or walls with thickness of 12.5 mm or, possibly, of a different thickness less than 15 mm. In the present embodiment of the invention the position of the seat 10 in relation to the wing 7 and that of the highest point of the slot 9 can be adjusted such that, once the free ends of the bridge bracket 2 have been connected to the plates 8, the edge of the reflector 1 is positioned flush with the outer edge of the tubular support 6. In the embodiment of the invention shown in Figures 4, 5 and 6, a tubular support with quadrilateral cross section is provided and denoted by 16, intended to be housed and attached in a recessing hole of corresponding shape, not shown. Two wings 17 project from two opposite sides of the tubular support 16 and their length is equal to that of these sides. In this case the tubular support 16 has a base wall 18 with a central opening 19, to which a light source 20 is anchored, for example by a bayonet coupling. In this case too shims 21 of appropriate thickness can be attached to the wings 17 to adapt the lamp to the various possible thicknesses of the panel forming the false ceiling or the wall wherein it has to be recessed. Unlike the embodiment illustrated in Figures 1, 2 and 3, in this case the edge of the reflector of the light source is positioned at the inner edge of the tubular support 16 instead of at the outer edge. In any case the outer edge of the tubular support 6 will be flush with the false ceiling or wall without creating thereon any discontinuity, apart from the aperture or apertures for the passage of the light. The reflector shown in the drawings is given purely by way of an example. In particular one single window 5 may be provided therein, or a light source with built-in reflector may be used. Moreover the shape of the support (quadrilateral and circular as shown in the examples) , is not limited to the application with the specific lamps shown in the drawings, instead its use may also be reversed or adapted to lamps with a different configuration. Various modifications and alteration to the invention may be appreciated on a review of the disclosure. These changes and additions are intended to be within the scope and spirit af the invention as defined by the following claims.

Claims

CLAIMS 1. Recessed lamp suitable for being housed in a recessing hole formed in a panel of a wall or a false ceiling, comprising a reflector (1) , means (4) for supporting a light source therein and electrical connection means (3) attached to said reflector, characterised in that it also comprises a tubular support (6) with an outer edge, which can be attached to said reflector (1) and with such dimensions that it can be engaged within said hole, a pair of diametrically opposite wings (7) extending outwardly from said tubular support (6) at a preset distance from said outer edge and intended to rest on said panel and to be secured thereto when the support is inserted in said hole, in such a way that its outer edge is flush with said false ceiling or wall. 2. Recessed lamp according to claim 1, wherein the length of said wings (7) is smaller than or equal to the maximum width of said tubular support (6) . 3. Recessed lamp according to claim 1 or 2 , wherein a bridge bracket (2) is externally fixed to said reflector (1) , respective plates (8) extending from said wings and being connected to the free ends of said bridge bracket by a bayonet coupling. 4. Recessed lamp according to any one of the previous claims, wherein said tubular support (6) has a circular section. 5. Recessed lamp according to any one of the previous claims, wherein the free edge of said reflector (1) is flush with the external edge of said tubular support . 6. Recessed lamp according to claim 1 or 2 , wherein said tubular support (16) has a base wall (18) with an aperture to which said reflector (20) is attached by means of a bayonet coupling. 7. Recessed lamp according to claim 6, wherein said reflector (20) is flush with the base wall of said tubular support (16) . 8. Recessed lamp according to claim 6 or 7, wherein said tubular support (16) has a quadrilateral shape, said wings (17) extending from two opposite sides thereof . 9. Recessed lamp according to any one of the previous claims, wherein the height of said tubular support (6, 16) is adaptable to the various thicknesses of the panel forming the false ceiling or the wall in such a way that the external edge of said tubular support is in any case flush with the false ceiling or the wall. 10. Recessed lamp according to any one of the previous claims wherein shims (12, 21) are applied under said wings (7, 17) to adapt the tubular support to the different thicknesses of the panel forming the false ceiling or the wall, in such a way that the external edge of said tubular support is flush with them. 11., Recessed lamp according to any one of the previous claims, characterised in that it is usable for installation in false ceilings or walls made of plasterboard.