FR2875576A1 - Recessed lighting fitting for public urban lighting purposes, has horizontal slides fixed inside case and oriented in front-back direction to permit removal and positioning of projectors outside case, after pane and/or grill is opened - Google Patents

Abstract

The fitting has an embedding case (2) to enclose projectors (12) and closed by a glass pane (8) and/or grid (9). The projectors are provided on a carriage (20) mounted movable in translation on horizontal slides (13). The slides are fixed inside the case and oriented in a front-back direction to permit the removal and positioning of the projectors outside the case, after the pane and/or the grill is opened.

Description

The present invention relates, in general, to devices

  outdoor lighting, such as urban street lighting. More particularly, this invention relates to a recessed luminaire in a wall, such as a maritime or river quay wall, also known as

"walled wall".

  Wall luminaires with recessed box are already known, the recess box containing at least one projector, and being closed by a window and / or a grid on its front face. However, in their current embodiment, these luminaires are unsatisfactory from the point of view of their ease of maintenance and the maintenance of the orientation adjustment of the headlamp (s).

  In particular, given that fixtures of this type are embedded in a wall at a height above the ground which may be several meters, it is necessary to ensure the safety of emergency personnel who are called, in particular , to replace their lamps, to make adjustments to the projectors or to carry out other maintenance operations. This problem is all the more acute as the adjustment operations are generally performed at night, to be able to immediately assess the result of the adjustment on the lighting effect obtained, and possibly correct this setting.

  The present invention aims to provide a technical solution adapted to the problem posed here, by providing a recessed luminaire in a wall which has an improved structure, facilitating its maintenance and adjustment.

  For this purpose, the invention essentially relates to a recessed luminaire in a wall, the luminaire having a recess box which encloses at least one projector and which is closed by a window and / or a grid on its front face, the luminaire being characterized by the fact that the headlamp (s) are carried by a carriage mounted to move in translation on substantially horizontal slides fixed inside the embedding box and oriented in the front-rear direction, so as to allow, after opening of the window and / or grille, the output and the holding in position of the projector (s) out of the box for maintenance or adjustment.

  Thus, the inventive idea consists in providing, in the recessed luminaire, a device which makes it possible to extract the spotlight (s) out of the box, which makes them easily accessible for carrying out any maintenance or adjustment operations.

  According to one embodiment of the invention, the carriage and its slides are located in the upper part of the embedding box, the slides being fixed respectively on the two opposite sides of the box and the carriage being constituted by a cross member connecting two elements. sideways provided with wheels provided to move along the rails, while the headlamps are mounted in suspended position below the cross and are fixed thereto by means of arch-shaped supports.

  Advantageously, the slideways are provided with means for stopping or indexing the carriage, on the one hand in a retracted position, for which the spotlight (s) are held in place inside the embedding box, and on the other hand, in at least one advanced position, for which the headlamp (s) are partially or wholly out of the installation box. In particular, these stop or indexing means may comprise, towards the rear and towards the front of each slide, at least one aperture adapted to receive and position a wheel of the corresponding lateral element of the carriage. In addition, said means may comprise, at the front of the slides, a retractable stopping means which, in a first position, is engaged in the slide and prevents any withdrawal of the carriage and which, in a second position, is erased and allows removal of the cart; this retractable stop means can be constituted by a simple stop screw, cooperating with a nut fixed under the slide, at the front thereof, the stop screw rod can be engaged in the slide or removed from it.

  Thus, very simple means, and requiring no particular tool, are sufficient to hold the carriage, or the headlamp (s), in a retracted position or in an advanced position, normally preventing the carriage is accidentally separated slides, therefore the embedding box, while exceptionally allowing a complete removal of the carriage and the projectors after deletion of the stop screws by a voluntary action.

  According to another aspect of the invention, contributing to facilitate the maintenance and adjustment of the projectors, the or each projector is pivotally mounted, about a transverse axis, on the corresponding support in the form of an arch the binder to the carriage, and at least one side of the bow is provided on the one hand with an arcuate light receiving a cleat fixed at a chosen point of its length, the cleat taking up position under the body of the headlamp, and on the other hand on the other hand, a slot in a circular arc with successive notches, receiving a stop placed in a preselected notch, the stop taking place above the body of the projector.

  Thus, the or each projector is pivotally mounted on the corresponding bow, its operating position being defined by the stopper and the stop, fixed in the lights, the positions of the stopper and the stopper which can themselves be adjusted, at the start , at the factory or at the installation location of the luminaire. Removing the stopper or cleat enables the luminaire to be freely rotated in one direction, while retaining the "memory" of the initial setting. In particular, it becomes possible, after extracting a projector from the casing, to tilt the projector so as to conveniently access its rear portion, for example to replace a lamp, after which the projector is brought back to its initially set orientation, which it finds by abutting for example against the cleat held in place. After this kind of intervention, the carriage can be pushed backwards, so as to bring the headlight (s) entirely inside the casing. Finally, the window and the front grille of the box can be closed.

  The maintenance operations can thus be performed on such a recessed luminaire in a wall, with maximum convenience and safety for stakeholders, even if they are posted on a ladder.

  In any case, the invention will be better understood with the aid of the description which follows, with reference to the appended schematic drawing showing, by way of example, an embodiment of this recessed luminaire in a wall: FIG. an overall view, in perspective, of a recessed luminaire according to the present invention, the door and the front gate being shown in the open position; Figure 2 is a partial perspective view of the luminaire of Figure 1, showing in particular a projector and a portion of the carriage; Figure 3 is a vertical sectional view of the luminaire of Figures 1 and 2, the carriage and the projectors occupying their retracted position; Figure 4 is a view similar to Figure 3 but illustrating the advanced position of the carriage and projectors.

  The recessed luminaire, shown as a whole in FIG. 1, has a metallic recess box 2, with an upper face 3, a lower face 4, two lateral faces 5 and 6, and a rear face 7. The front face, open, the box 2 is closed by a door with a safety glass 8 and a vandal-proof grid 9, articulated by one or hinges on one side of the box 2, and provided on the opposite side of secure closure means here not detailed, symbolized in 10. The box 2 is also provided externally, rearwardly, several sealing lugs 11 used for its attachment in a corresponding housing formed in a masonry wall.

  In the illustrated example, the embedding box 2 encloses two projectors 12, which are arranged side by side and which, in operation, emit light beams directed outwards through the window 8 and the grid 9. Each projector 12 here has a body of parallelepipedal general shape. The projectors 12 are electrically powered by cables, not shown.

  Referring also to FIGS. 2 to 4, the box 2 encloses, on its two sides, respectively two slides 13 fixed horizontally in its upper part, against the lateral faces 5 and 6. Each slide 13 is constituted by an angle, with a vertical wing 14 and a horizontal wing 15, said bracket extending substantially from the rear face 7 of the box 2 to its front face. A first rectangular opening 16 is formed in the horizontal flange 15 of each slide 13, towards the rear. A second rectangular opening 17 is formed in the horizontal flange 15 of each slide 13, towards the front.

  In addition, a nut 18 is welded under the horizontal flange 15 of each slide 13 at the front end thereof (in front of the second opening 17). The nut 18 receives a stop screw 19 captive, whose operating head (for example hexagon) is located below this nut 18, and whose stem, directed towards the end, through a hole of the horizontal wing 15 the slide 13 and is thus engageable in this slide 13.

  The two slides 13 serve for supporting and guiding a carriage 20, under which are mounted, in suspended position, the two projectors 12. The carriage 20 is constituted by a cross member 21, which connects two opposite side members 22, the cross member 21 and the two lateral elements 22 being achievable by metal sections section "U" See in particular Figure 2. Each side member 22 carries two wheels 23 aligned, provided to rest and move on the horizontal flange 15 of a slide 13.

  Under the crosspiece 21 of the carriage 20 are fixed two arches 24, each of which has a horizontal upper portion 25 and two side portions, respectively 26 and 27. A projector 12 is engaged between the two side portions 26 and 27, and pivotally mounted, around of a transverse axis 28 relative to these lateral portions 26 and 27. Thus, each arch 24 serves as support for one of the two projectors 12.

  Referring more particularly to Figure 2, one 27 of the two side portions of each arch 24 is widened to form a flange, in which are formed two arcuate lights, respectively 29 and 30. The first light 29, centered on the transverse axis 28, extends in the lower zone of the flange and is a smooth light. It receives, at a point of its length, a removable cleat 31 which takes place under the projector body 12 corresponding. The second light 30, eccentric with respect to the transverse axis 28, extends in the upper zone of the flange and is a light provided with a succession of notches. A removable stop 32 is placed and fixed in one of the notches of the light 30, this stop 32 taking place above the body of the corresponding projector 12.

  The two slides 13 and the carriage 20 make it possible to manually move the two projectors 12, with this carriage 20, between a retracted position (FIGS. 1 and 3) and an advanced position (FIG. 4).

  In the retracted position, which is the operating position of the projectors 12, the carriage 20 is positioned in that one of the two rollers 23 of each lateral element 22 "falls" into the rear opening 16 of the corresponding slideway 13, as shown in Figure 3. The two projectors 12 are then entirely inside the box 2, the door with window 8 and the grid 9 can be closed. Note that, in this position, the depression of a wheel 23 in the opening 16 of the slide 13 gives the carriage 20 a certain inclination a, which must be taken into account for the orientation adjustment of the projectors 12.

  After opening the door with window 8 and grid 9, it becomes possible to move the carriage 20 forward, by rolling rollers 23 along the slides 13, to bring the carriage 20 to an advanced position, which places the projectors 12 almost entirely outside the box 2, so as to make them very accessible, while maintaining them in position. The carriage 20 can be positioned, in the advanced position, by the fact that one of the two rollers 23 of each lateral element 22 "falls" into the front opening 17 of the corresponding slideway 13, as shown in FIG. 4.

  Assuming that each stopper screw 19 remains engaged in the corresponding slideway 13 (as shown in FIG. 3), the carriage 20 can not be extracted from the casing 2, from its advanced position. However, unscrewing the stop screws 19 relative to the corresponding nuts 18 makes it possible, if necessary, to erase these stop screws 19 under the slideways 13, so that the carriage 20 can be completely withdrawn with the projectors 12 in order to some exceptional interventions.

  In the advanced position of the carriage 20 (according to FIG. 4), it becomes easy to carry out maintenance or adjustment operations of the projectors 12, these operations being able to be further facilitated by a tilting of a searchlight 12 around the transverse axis 28, tilting which allows in particular to conveniently access the rear part of the projector 12.

  To switch a projector 12, the operator loosens the latch 31 of the light 29 or the stop 32 of the other light 30, so that the projector 12 is released in rotation. The latch 31 or the stop 32 left in place allows to "memorize" the previously adjusted angular position of the projector 12, so as to easily find this position.

  After intervention on the projectors 12, the carriage 20 is pushed back to its retracted position, and the box 2 can then be closed.

  As can be understood and as illustrated in the rest of Figure 1, the two projectors 12 housed in the same recess box 2 can be set at different inclinations from one another, these two projectors 12 can have different optics corresponding to various types of lighting: wide or narrow beam lighting, near or far distance, possibly "grazing" light, etc.

  As is obvious, and as is apparent from the foregoing, the invention is not limited to the sole embodiment of this recessed luminaire in a wall that has been described above, for example; it embraces, on the contrary, all variants of implementation and application respecting the same principle. It is thus, in particular, that one would not depart from the scope of the invention: by modifying the forms of detail, for example the carriage; replacing the openings of the slides and the stop screws by any equivalent means of stopping or indexing the carriage; by applying the invention to embedding boxes enclosing any number of projectors, for example a single projector.

Claims (7)

  1. Recessed luminaire in a wall, the luminaire having a mounting box (2) which encloses at least one projector (12) and which is closed by a window (8) and / or a grid (9) on its front face , characterized in that the one or more projectors (12) are carried by a carriage (20) movably mounted in translation on horizontal slides (13) fixed inside the embedding box (2) and oriented in the forward direction rearward, so as to allow, after opening the window (8) and / or grid (9), the output and the holding in position of the projector (s) (12) out of the box (2) for maintenance or of their setting.   Wall-recessed luminaire according to Claim 1, characterized in that the carriage (20) and its slides (13) are situated in the upper part of the embedding box (2), the slides (13) being fixed respectively on the two opposite sides (5, 6) of the box (2) and the carriage (20) being constituted by a cross member (21) connecting two lateral elements (22) provided with rollers (23) provided to move along the slides (13), while the one or more projectors (12) are mounted in suspended position below the crossbar (21) and are fixed thereto by means of arch-shaped supports (24).   Wall-recessed luminaire according to Claim 1 or 2, characterized in that the slideways (13) are provided with means for stopping or indexing (16, 17, 19) of the carriage (20), a part in a retracted position, for which the headlamp (s) (12) are held in place inside the mounting box (2), and on the other hand in at least one forward position, for which the headlamp (s) (12) are partially or completely out of the embedding box (2).   4. Recessed luminaire in a wall according to claims 2 and 3, characterized in that said stop means or indexing comprise, towards the rear and towards the front of each slide (13), at least an opening (16, 17) adapted to receive and position a wheel (23) of the corresponding lateral element (22) of the carriage (20).   5. Recessed luminaire in a wall according to claim 3 or 4, characterized in that said stop means or indexing comprise, in front of the slideways (13), a retractable stop means (19) which, in a first position, is engaged in the slide (13) and prevents removal of the carriage (20) and which, in a second position, is erased and allows removal of the carriage (20).   6. Recessed luminaire in a wall according to claim 5, characterized in that the retractable stop means is constituted by a stop screw (19), cooperating with a nut (18) fixed under the slide (13), to the before it, the rod of the stop screw (19) can be engaged in the slide (13) or spaced therefrom.   Wall-recessed luminaire according to Claim 2, characterized in that the or each projector (12) is pivotally mounted about a transverse axis (28) on the corresponding arch-shaped support (24) on binding to the carriage (20), and in that at least one side of the arch (24) is provided with a circular arc (24) receiving a latch (31) secured in a chosen point of its length, the cleat (31) taking place under the body of the headlamp (12), and secondly, a circular arcuate slot with successive notches (30), receiving a stop (32) placed in a preselected screen, the stop (32) taking place above the body of the projector (12).