Swivel support, eg. for lights

The present invention concerns a swivel container support, especially, though not exclusively, for lighting devices and optic devices.

Supports or containers for lighting fixtures that can be oriented in space are known. However, due to the complexity of realisation, assembly and installation of these known devices, and due to their relatively high cost, their diffusion is still fairly limited.

The main aim of the present invention is to overcome the above-mentioned inconveniences.

This result is achieved, in conformity with the present invention, by adopting the idea of realising a container support having the characteristics described in claim 1. Other characteristics of the invention are the object of the dependent claims.

A container support according to the present invention is simple, economic and reliable to make, assemble and install, even after a prolonged period of use, it is lightweight, may be made of plastic or of an electrically insulating material, and allows an ample range of orientation in space of the 'object that it supports or contains.

These and other advantages and characteristics of the present invention will be better understood by any technician in the field from the following description, with the aid of the enclosed drawings, given here simply as a practical example of the invention, but without limiting it in any sense, in which: Fig.1 shows a side view of a container support in conformity with the invention, fitted on a channel frame; Fig.2 shows a section view along the line A-A in Fig.1; Fig.3 shows a section view along the line B-B in Fig.2; Fig.4 shows a section view along the line C-C in Fig.2; Fig.5 shows an exploded perspective view of the device in Fig.1; Fig.6 shows a side view of the base element of the container support in Fig.1; Fig.7 shows an overhead view of the element in Fig.6; Fig.8 shows a section view along the line D-D in Fig.6; Fig.9 shows a section view along the line E-E in Fig.7; Fig.10 shows a section view along the line F-F in Fig.7; Fig.11 shows an enlargement of the detail circled in Fig.10; Fig.12 shows a section view along the line G-G in Fig.11; Fig.13 shows a perspective view of the closing element of the container support in Fig.1; Fig.14 shows a side view of the element in Fig.13; Fig.15 shows a section view along the line H-H in Fig.14; Fig.16 shows a section view along the line I-I in Fig.14; Fig.17 shows a section view along the line L-L in Fig.16; Fig.18 shows an overhead view of the articulation; Fig.19 shows a section view along the line J-J inFig.18; Fig.20 shows a section view along the line K-K in Fig.18; Fig.21 shows an enlargement of the detail "Z" in Fig. 19; Fig.22 shows an enlargement of the detail "V" in Fig.19; Fig.23 shows a perspective view of the ring for fixing the device; Fig.24 shows a PLANview of the ring in Fig.23; Fig.25 shows a section view along the line M-M in Fig.24; Fig.26 shows a section view along the line N-N in Fig.24; Fig.27 shows an enlargement of the detail "X" in Fig.26; Fig.28 shows an enlargement of the detail "Y" in Fig.25; Fig.29 shows a set of three independent container supports in conformity with the invention, fitted on the same channel frame.

The following description will refer, as a non limitative example, to a swivel lighting device.

Reduced to its basic structure and reference being made to the figures of the enclosed drawings, a container support according to the present invention comprises: - a container body (1) with an external surface in the shape of a spherical bowl, in which is housed a lamp with a led (6) with respective dissipator (7) and a lens (8) above, and which is composed of a base element (2) and of a closing element (3) above it, the external surface of said body (1) being provided with a series of equidistant meridian teeth (4), between which are corresponding grooves (5) the bottom of which is defined by a corresponding portion or strip of spherical surface; - means, including a spherical articulation, for fixing said body (1) to a fixed support, for example a channel frame (9) made of metal or plastic.

Said body (1) is composed of two elements (2, 3) to facilitate assembly operations. Said teeth (4) and said grooves (5) are defined in cooperation by the two elements (2, 3) that make up the body (1).

Advantageously, according to the invention, said means for fixing the body (1) to the channel (9) comprise a ring-shaped element (10) intended to be fitted in a corresponding hole (11) presented by the channel (9) and internally provided with four angularly equidistant radial appendices (12). In other words, said appendices are short cylindrical elements set at 90° from one another. The longitudinal axes of said appendices (12) intersect in a point (P) corresponding to the geometrical centre of the body (1). As better described below, said appendices (12) are intended to engage four corresponding grooves (5) in the body (1).

The external side surface of said ring (10) is provided with circumferential parallel ridges having a saw-toothed profile (13).

Moreover, advantageously, said ring (10) presents an upper ring-shaped edge (14) destined to rest on the edge of the hole (11) of said channel (9).

Said ring-shaped element (10) may be made of plastic material with the moulding technique; in that case it is moulded on a spherical seat, so it presents four shakeout openings (15) which, with the aid of the band (16) described below, are subject to closing in the operative or using condition of the system so that the side surface of the ring-shaped element (10) substantially assumes the shape of a spherical band.

The internal surface of said ring-shaped band (16) is provided, on the inside, with circumferential ridges (17) corresponding to those (13) presented by the external side surface of the ring (10).

Advantageously, according to the invention, the base element (2) of said container body (1) presents an axial tubular appendix (18) on the upper edge (19) of which the lens (8) rests. Said tubular appendix (18) is provided with two internal radial teeth (20), situated in diametrically opposite positions, which teeth (20) act as a guide for positioning the dissipator (7) of the lamp (6).

Moreover, said tubular appendix (18) has two teeth (21) on the outer surface of two flexible tabs (22), said tabs (22) being in diametrically opposite positions, that is located in such a way that each one of them is in an intermediate position between two internal teeth (20). In other words, the tabs (22), from which the teeth (21) and respectively the internal radial teeth (20) of the tubular appendix (18) emerge towards the outside, are substantially developed according to two plains (F-F; E-E) orthogonal to each other.

Moreover, from the bottom of said appendix (18) there emerge two flexible tabs (23), oriented towards the longitudinal axis of the same appendix (18) and located in diametrically opposite positions, and two further tabs (24) which are oriented parallel to said longitudinal axis, are also located in diametrically opposite positions and are provided with a hook-shaped free end.

The surface of the lower base of said element (2) projects outside the corresponding side wall, forming a ring-shaped projection (25) which, as further described below, prevents the overturning of the body (1) during use.

The element (3) of said body (1) present two holes (26), corresponding to two diametrically opposite teeth (4), destined to be engaged by the teeth (21) of the first element (2) of the same body (1) in the assembly phase.

The device concerned is assembled as follows.

The lamp (6) is housed in the tube (18) making two grooves (27) of the respective dissipator (7) slide along the two internal teeth (20) of the same cylinder, overcoming the resistance offered by the tabs (23), until the dissipator is in position below the two hook-shaped ends provided by the tabs (24). In this way, the lamp (6) is perfectly blocked inside the tube (18), whatever the thickness of the respective dissipator (7). In other words, the system auto-adapts to the thickness of the dissipator (7), always keeping the lamp (6) in the desired position. Next, the lens (8) is positioned on the lamp (6), in such a way that the lens rests on the edge (19) of the tube (18). Then, the element (3) of the body (1) is fitted onto the cylindrical appendix (18) of the element (2), in such a way that to each groove (5), respectively each tooth (4), of the element (3) there corresponds a groove (5), respectively a tooth (4), of the element (2), and in such a way that each tooth (21) of the element (2) fits into a corresponding hole (26) in the element (3). In this way, also the lens (8) is blocked in the desired position, above the lamp (6). Then, the ring-shaped element (10) is placed in the hole (11) of the channel (9), in such a way that the edge (14) of the element (10) covers the external edge of the hole (11) and in such a way that the ridged side wall (13) of the same element is inside the channel (9). On the opposite side, that is inside the channel (9), is positioned the body (1) - assembled as described above - in such a way that each internal radial appendix (12) of the element (10) fits into a corresponding groove (5) in the body (1). Finally, the band (16) is pressed onto the ridged side wall (13) of the element (10), so that the openings (15) of the latter are closed. Since the axes of the appendices (12) intersect in the centre (P) of the body (1), the latter can orbit freely around that point, while the element (10) remains fixed in the assembly position. Consequently, also the lamp (6) and the respective beam of light can be oriented as desired (see Fig.29). The presence of the projection (25) on the lower base surface of the element (2) prevents the complete overturning of the body (1) since, when the same is turned into a position in which the projection (25) intercepts the band (16), any further inclination of the body (1) is prevented. If the lamp (6) and/or the lens (8) have to be replaced, it is sufficient to release the element (3) of the body (1) from the element (2), without necessarily having to remove also the ring (10) and the pressing band (15). In place of the lamp (6), the body (1) may contain or support any other object to be oriented according to a predetermined but variable position in space.

In practice the details of execution may vary, as may the shape, dimensions, the arrangement of the elements, or the nature of the materials used, without departing from the idea of the solution adopted and thus remaining within the limits of the protection afforded by the present patent.