FR2786255A1 - INTERNAL PLATINUM LUMINAIRE WHICH MAY BE AVAILABLE ON EITHER OF TWO DIFFERENT LEVELS - Google Patents

Abstract

It is a luminaire of the type comprising a base (11), which has a base (12), and a plate (13), which, for the support of various components, intervenes at a distance from this base (12) , the base (11) comprising, for maintaining this plate (13), securing means (15A, 15B) specific to such a maintenance. According to the invention, the base (11) comprises securing means (15A, 15B) at two different levels with respect to its bottom (12). Application, in particular, to portholes.

Description

Luminaire, with internal plate capable of being arranged one or the other

  of two different levels "The present invention generally relates to luminaires of the type comprising a base, which has a base, and a plate, which, for the support of various constituents, operates at a distance from this base, the base comprising , for the retention of this plate, securing means specific to such maintenance, and more particularly, but not necessarily exclusively, those of these luminaires, then commonly called portholes, which also include, to close the assembly, and, preferably, to close this assembly tightly, a cover or a cover, which, of course,

is at least partly translucent.

  For example, and this is the case for recessed luminaires, the base may include, in addition to its bottom, a side wall, and, thus forming by

  itself a box body, a simple cover is enough to close it.

  As a variant, and this may be the case for a luminaire to be projecting, the base can essentially be reduced to its bottom, and, in order to close the assembly, a cover is then used, in general shape bell,

  which presents by itself the necessary side wall.

  The problem here is that in either case the cover

  closing the door, the volume available both below the stage and

  above it is limited, and well determined.

  However, for a given overall volume for the whole, the distribution to be made between the free volume under the plate and the free volume above the latter is different according to the nature of the light source used, this light source can be either a fluorescent source or a source

incandescent.

  Indeed, the constituents to be used in both cases are different, and therefore, also, their size, and the constraints

  are also different.

  iSil In practice, the other conditions being equal, an incandescent light source requires, above the stage, a volume greater than that with which a fluorescent light source is satisfied, and, conversely, it satisfies itself. , of a lower volume below this turntable. To meet such conditions, it is usual, to date, to provide two different embodiments, one suitable for the use of an incandescent light source, the other suitable for the use of a source fluorescent light, at the expense of manufacturing and management costs

these achievements.

  The present invention generally relates to a provision which, by allowing standardization of manufacturing, leads

  advantageously to a reduction of these costs.

  More specifically, it relates to a luminaire of the i 5 type comprising a base, which has a bottom, and a plate, which, for the support of various constituents, intervenes at a distance from this bottom, the base comprising, for the maintenance of this plate, securing means specific to such maintenance, this luminaire being generally characterized in that the base comprises securing means at two different levels by

compared to its background.

  Thanks to such an arrangement, which makes it possible to vary inversely the volume available above the plate and the volume available below it, the same base, and the same plate, are advantageously suitable for both work of an incandescent light source than with the use of a fluorescent light source, by allowing, each time, to comply in the best conditions with the heating and space constraints linked to each of these light sources . It suffices, in fact, for an incandescent light source, to fix the plate at the lower level, and, for a fluorescent light source,

attach to the upper level.

  ilMlA For example, for the upper level, at least, the securing means provided on the base comprise, at a distance from each other, according to a preferred embodiment of the invention, at least two fixing chimneys , and, for access to the means for securing the lower level, the plate comprises, jointly, at a distance from each other,

  in correspondence with these fixing chimneys, two recesses.

  Consequently, to move the plate from the upper level to the lower level, it suffices to rotate it on itself around an axis perpendicular to its plane, so that the recesses which it comprises allow it to engage on the fixing chimneys of the upper level and thus reach the securing means otherwise provided on standby

for her at the lower level.

  The characteristics and advantages of the invention will moreover emerge from

  the following description, by way of example, with reference to the drawings

  attached schematics in which: Figure 1 is a perspective view of a luminaire according to the invention Figure 2 is an exploded perspective view; Figure 3 shows, on a larger scale, the part of Figure 2 corresponding to the base and the plate that includes this fixture; Figure 4 is, on a different scale, and according to arrow IV of Figure 3, a plan view of this base, shown in isolation; Figure 5 is, on the same scale as Figure 4, and along the arrow V of Figure 3, a plan view of the plate, shown in isolation; Figure 6 is an axial sectional view of the assembly, for a first position of the plate; Figure 7 is a plan view of this assembly, for this first position of the plate, along arrow VII of Figure 6; Figure 8 is an axial sectional view similar to that of Figure 6, for the second position of the plate; FIG. 9 is, along arrow IX of FIG. 8, a plan view similar to that of FIG. 7, for this second position of the plate 1 - ': l FIG. 10 is an exploded perspective view, which, similar to that of FIG. 3, but with a local cutout, relates to a variant of

  realization of the luminaire according to the invention.

  As illustrated in these figures, and in a manner known per se, the luminaire 10 according to the invention comprises, in particular, a base 11, which has a bottom 12, and a plate 13, which, for the support of various constituents, and, in particular, for that of a light source 14A, 14B, as shown diagrammatically in broken lines in FIGS. 6 and 8, operates at a distance from this bottom 12, the base 11 comprising, for the maintenance of this plate, and according to arrangements described in more detail later, means

  1 5A, 1 5B specific to such maintenance.

  Since the base 11 is not entirely covered by the present invention, it

  will only be partially described in the following.

  More precisely, only the elements necessary for the

i 5 understanding of the invention.

  As, in the embodiments shown, a luminaire, of the porthole type, intended to be recessed, the base 1 1 comprises, in addition to its bottom 12, and, in practice, in one piece with that here, a side wall 16, which, at its outlet, forms, peripherally, projecting outwards,

a ledge 18.

  This base 11 thus generally forms a box body.

  In the embodiments shown, and for reasons which need not be explained here, the side wall 16 of the base 11 forms, along its periphery, in an offset from its main part 19, at a distance from its outlet, a bench 20, which projects towards the inside of the

  base 11, and which, in practice, extends to the bottom 12 thereof.

  In the embodiment more particularly represented on the

  Figures 1 to 9, the base 11 has, in plan, a generally circular outline.

  The plate 13 has, moreover, itself, a generally circular contour.

  More specifically, the contour of this plate 13 is substantially complementary to that of the main part 19 of the side wall 16 of the i = 11 base 11, this main part 19 of the side wall 16 being the portion of

  the latter which extends between the bench seat 20 and its outlet.

  In the embodiments shown, the luminaire 10 also comprises, in addition to the base 11 and the plate 13, a cover 22, which closes the base 11, and which, of course, is at least partly translucent. This cover 22 has only been shown in the figures for the shape of

realization of Figures 1 to 9.

  For example, and as shown, this cover 22 comprises, in its central zone, a verrine 23, which forms a diffuser, and, at its periphery, around this verrine 23, for its attachment to the base 11, a crown 24, which trim shape. For example, and as shown, the crown 24 of this cover 22 has, from place to place, wells 25, for the passage of screws 26 suitable for its attachment to the rim 18 of the base 11, wells 27 opening out

  correspondence to the surface of this rim 18 for the screwing of these screws 26.

  According to the invention, the base 11 comprises securing means 15A, 15B at two levels NA, NB different from

its background 12.

  For the higher level NA, at least, the securing means 15A comprise, at a distance from one another, in the embodiments shown, at least two fixing chimneys 28A, and, for access to the means of subjection 15B of the lower NB level, the plate 13 comprises, at a distance from each other, in correspondence with these chimneys

  fixing 28A, two recesses 29A.

  In the embodiments shown, the fixing chimneys 28A of the upper level NA intervene in the vicinity of the side wall 16 of the base 11, and the corresponding recesses 29A of the plate 13 are

  notches which act on the periphery of this plate 13.

  For the higher level NA, at least, the securing means 15A also include, in the embodiments shown, at a distance from each other, and at a distance from the fixing chimneys 28A, at - 71f minus two support ribs 28'A, and, for access to the securing means 15B of the lower NB level, the plate 13 comprises, at a distance from one another, in correspondence with these support ribs 28'A,

two recesses 29'A.

  Like the fixing chimneys 28A, the support ribs 28'A of the upper level NA intervene, in practice, in the vicinity of the side wall 16 of the base 11, and the corresponding recesses 29'A of the plate 13 are, as previously , notches that occur at the periphery of this

plate 13.

  In the embodiments shown, the support ribs 28'A

  alternate with the fixing chimneys 28A.

  They are also flush with the outlet of these.

  When, as in this case, the side wall 16 of the base 11 forms a bench 20, the fixing chimneys 28A of the upper level NA protrude from this bench 20, and, more precisely, from the upper surface thereof, towards the outlet of the base 11, and it is the same

for the support ribs 28'A.

  In practice, in the embodiments shown, the fixing chimneys 28A are disposed at a slight distance from the main part 19 of the side wall 16, and they are each connected to the latter by a stiffening rib 31 which extends substantially perpendicular to this part

  side 19 of the side wall 16.

  Similarly, in the embodiments shown, the support ribs 28'A each extend substantially perpendicular to the main part 19 of the side wall 16, starting from the latter, and over the entire

width of the bench 20.

  For the lower NB level, the securing means 15B also include, at a distance from each other, in the embodiment

  shown, at least two fixing chimneys 28B.

  In the embodiments shown, only two fixing chimneys 28A, 28B are provided, both for the upper level NA and for the

lower NB level.

  In the embodiment more particularly shown in FIGS. 1 to 9, these fixing chimneys 28A, 28B are arranged in diametrically opposite positions with respect to each other at each of the levels NA,

  NB, and, from one level NA, NB to the other, they are arranged in a cross.

  In other words, in this embodiment, the fixing chimneys

28A, 28B are 90 two by two.

  Furthermore, in this embodiment, the fixing chimneys 28B of the lower NB level are at least partly engaged in the bench seat 20,

  or, more precisely, in the side 32 of this bench seat 20.

  For example, and as shown, they extend substantially to

  half on either side of this flank 32.

  In practice, the fixing chimneys 28B of the lower NB level extend from the bottom 12 of the base 11, and they protrude slightly on the bench seat 20, and, more precisely, on the upper surface 30 of

  this, in the direction of the outlet of this base 11.

  When, as shown in FIGS. 1 to 9, the base 11 has a circular contour, the fixing chimneys 28A of the upper level NA and the fixing chimneys 28B of the lower level NB are preferably established along the same circumference C, which corresponds, substantially,

  with the outline of the sidewall 32 of the bench seat 20, FIG. 4.

  As a corollary, for the passage of fixing screws, not shown, suitable for cooperating with the fixing chimneys 28A or with the fixing chimneys 28B, the plate 13 has two holes 33, which are established along a circumference C 'of same diameter as the circumference C along which these fixing chimneys 28A, 28B are established, and which are

  arranged in diametrically opposite positions relative to each other.

  In the embodiments shown, the holes 33 of the

  plate 13 are elongated in keyholes.

  When, as shown in FIGS. 1 to 9, the base 11 has a circular outline, these holes 33 are thus elongated circumferentially,

  along the circumference C 'of the plate 13.

  For example, and as shown, they extend substantially in a cross with respect to the recesses 29A, and they are each respectively

  relatively close to the recesses 29'A.

  Finally, for the lower NB level, the securing means 15B also include, at a distance from each other, in the forms of

  embodiment shown, at least two support ribs 28'B.

  As before, these support ribs 28'B alternate with the

fixing chimneys 28B.

  They are also flush with the outlet of these.

  As before, also, the support ribs 28'B each extend substantially perpendicular to the main part 19 i15 of the side wall 16, from the latter, over the entire width of the bench seat 20, and the chimneys fixing 28B are themselves each connected to this main part 19 of the side wall 16 of the base 11 by a stiffening rib 34 which extends substantially radially relative to

to base 11.

  Finally, in the embodiments shown, the plate 13 comprises, for reasons which have not been explained here, other openings

  that the only recesses 29A, 29'A and that the only holes 33.

  Assume, first of all, with reference to FIGS. 6 and 7, that the light source 14A to be used is a light source

fluorescent.

  As is known, must be associated with such a fluorescent light source 14A, in addition to a terminal block 35A, a ballast 36, which is relatively bulky. Of course, this fluorescent light source 14A is located on the upper surface of the plate 13, as shown schematically in lines

interrupted in Figure 6.

  l -: 11 As a corollary, the terminal block 35A and the ballast 36 are installed on the lower surface of this plate 13, as also shown diagrammatically in lines

interrupted in this figure 6.

  Other components can be jointly provided on one or the other of the surfaces of the plate 13 if necessary. According to the invention, the plate 13 thus equipped, at least, with such a fluorescent light source 14A, a terminal block 35A and a ballast 36, is

  located at the higher NA level in the base 11.

  To do this, it is applied against the fixing chimneys 28A and the support ribs 28'A of the corresponding securing means 1 5A, in an orientation for which its holes 33 are

  each respectively opposite the fixing chimneys 28A, FIG. 7.

  Then, to ensure its subjection to the base 11, it suffices to engage, by screwing, the fixing screws in the fixing chimneys 28A, at

through its holes 33.

  In practice, the corresponding fixing screws can advantageously be placed in advance in the fixing chimneys 28A, without however being entirely screwed into them, and, after having been engaged on these fixing screws by the rounded part of its holes 33, the plate 13 is, as shown schematically by the arrow F in FIG. 7, pivoted around the axis A of the assembly by an angle sufficient for it to engage

  under the head of these fixing screws by the elongated part of these holes 33.

  Then just tighten the fixing screws.

  It will now be assumed, with reference to FIGS. 8 and 9, that the light source 14B to be used is an incandescent light source. As before, this light source 14B is located on the upper surface of the plate 13, and, on the lower surface of the latter, is

installed a 35B terminal block.

  According to the invention, the plate 13 thus equipped with such an incandescent light source 14B and this terminal block 35B is located at the NB level

lower in the base 1 1.

  To do this, it is engaged, by its recesses 29A, on the fixing chimneys 28A, and, by its recesses 29'A, on the support ribs 28'A associated with these fixing chimneys 28A, up to come to rest on the fixing chimneys 28B and on the support ribs 28'B of the level

  NB lower, as represented on figure 8.

  Its holes 33 are then each presented respectively to the right of

fixing chimneys 28B.

  If, as before, these fixing chimneys 28B were fitted in advance with fixing screws, it is also proceeded, as before, to pivot the plate 13 around the axis A of the assembly, along the arrow F of figure 9, before the final tightening of these screws

of fixation.

  As it is easy to understand, the angular extension of the recesses 29A, 29'A of the plate 13 is, by construction, sufficient, for the fixing chimneys 28A of the securing means 15A of the upper level NA and the support ribs 28'A associated with these chimneys

  fixing 28A do not oppose this pivoting of the plate 1 3.

  As will be noted, the plate 13 intervenes, each time, generally transversely in the base 11, that is to say generally perpendicular to the axis A of the assembly, substantially parallel to the

bottom 12 of this base 11.

  In the embodiment shown in Figure 10, the base 1 1 has, in plan, a generally rectangular outline, and it is the same for the

plate 13.

  For the rest, the arrangements are similar to those previously described, and, in this figure 10, the same references have been used for

designate the same elements.

  In particular, the base 11 has two fixing chimneys 28A, of which only one is visible in FIG. 10, two fixing chimneys 28B, of which only one is also visible in this FIG. 10, two support ribs

28'A and two support ribs 28'B.

  As a corollary, the plate 13 has, at its periphery, two recesses 29A, in this case notches, one of which intervenes in a corner area,

  two recesses 29'A, and two holes 33.

  But these, which are, as before, in keyholes, are

  elongated substantially parallel to the longitudinal sides of the plate 13.

  In FIG. 10, the plate 13 is shown in the position for which it is able to be installed at the lower NB level, not shown, of the base 11, its holes 33 appearing in line with the fixing chimneys 28B thereof, however that its recesses 29A are at the right of the fixing chimneys 28A, and that its recesses 29'A are at the right of the

support ribs 28'A.

  For its implantation at the higher NA level, not shown, it suffices to rotate it 180 around an axis perpendicular to its plane, before

  to put it in place in the base 11.

  Its holes 33 then appear in fact at the right of the chimneys of

fixing 28A.

  Of course, the present invention is not limited to the forms of

  shown, but includes any variant.

  We would not go beyond the scope of the invention either, if the base of the luminaire was essentially reduced to its bottom, and if, in correspondence, it was substituted for a simple cover, a cover comprising

a side wall.

Claims (15)

  1. A luminaire of the type comprising a base (11), which has a base (12), and a plate (13), which, for the support of various constituents, intervenes at a distance from this base (12), the base (11 ) comprising, for the maintenance of this plate (13), securing means (15A, 15B) specific to such a maintenance, characterized in that the base (11) comprises securing means (15A, 15B) to two different levels (NA, NB) compared to at its bottom (12).   2. Luminaire according to claim 1, characterized in that, for the level (NA) above, at least, the securing means (15A) comprise, at a distance from each other, at least two fixing chimneys (28A), and, for access to the securing means (15B) of the lower level (NB), the plate (13) comprises, at a distance from each other, in correspondence with these fixing chimneys (28A) , two recesses (29A).   3. Luminaire according to claim 2, characterized in that, the base (11) having a side wall (16), the fixing chimneys (28A) of the upper level (NA) intervene in the vicinity of this side wall (16), and the corresponding recesses (29A) of the plate (13) are notches which   intervene at the periphery of this plate (13).   4. Luminaire according to any one of claims 2, 3,   characterized in that, for the upper level (NA) at least, the securing means (15A) comprise, at a distance from one another, and at a distance from the fixing chimneys (28A), at least two support ribs (28'A), and, for access to the securing means (15B) of the lower level (NB), the plate (13) comprises, at a distance from each other, in correspondence with these   support ribs (28'A), two recesses (29'A).   5. Luminaire according to claims 3 and 4, taken together,   characterized in that the support ribs (28'A) of the upper level (NA) intervene in the vicinity of the side wall (16) of the base (11), and the corresponding recesses (29'A) of the plate (13 ) are notches which   intervene at the periphery of this plate (13).   6. Luminaire according to any one of claims 4, 5,   characterized in that the support ribs (28'A) alternate with the fixing chimneys (28A).   7. Luminaire according to any one of claims 2 to 6,   characterized in that, for the lower level (NB), the securing means (15B) also comprise, at a distance from each other,   at least two fixing chimneys (28B).   8. Luminaire according to claim 7, characterized in that only two fixing chimneys (28A, 28B) are provided, both for the level (NA)   higher than for the lower level (NB).   9. Luminaire according to claim 8, characterized in that, the base (11) having a circular outline, the fixing chimneys (28A, 28B) are   arranged in a cross from one level (NA, NB) to another.   i0. Luminaire according to any one of Claims 7 to 9,   characterized in that, the base (11) having a side wall (16), and this side wall (16) forming, along its periphery, in an offset relative to its current part (19), at a distance from its outlet , a bench seat (20), the fixing chimneys (28A) of the upper level (NA) protrude on this bench seat (20).   11. A luminaire according to claim 10, characterized in that the fixing chimneys (28B) of the lower level (NB) protrude slightly from the bench seat (20).   12. Luminaire according to any one of claims 7 to 11,   characterized in that, the base (11) having a circular contour, the fixing chimneys (28A) of the upper level (NA) and the fixing chimneys (28B)   of the lower level (NB) are established along the same circumference (C).   13. Luminaire according to any one of claims 1 to 12,   characterized in that, for the passage of fixing screws, the plate (13) has two holes (33).   14. Luminaire according to claims 12 and 13, taken together,   characterized in that the holes (33) of the plate (13) are established along a circumference (C ') of the same diameter as the circumference (C) along which the fixing chimneys (28A, 28B are established) ), and they are arranged in diametrically opposite positions with respect to each other. 15. Luminaire according to any one of claims 13, 14, characterized in that the holes (33) of the plate (13) are elongated in a hole lock.   16. Luminaire according to any one of claims 2 to 15,   characterized in that, for the lower level (NB), the securing means (15B) also comprise, at a distance from each other,   at least two support ribs (28'B).   17. Luminaire according to any one of claims 1 to 16,   characterized in that, the base (1 1) having a side wall (16), it also comprises a cover (22), which closes this base (11), and which is at less partly translucent. -unl I