GB2570286A

GB2570286A - Exterior lighting apparatus

Info

Publication number: GB2570286A
Application number: GB1720269.8A
Authority: GB
Inventors: Wilson Stuart
Original assignee: TRT Lighting Ltd
Current assignee: TRT Lighting Ltd
Priority date: 2017-12-05
Filing date: 2017-12-05
Publication date: 2019-07-24
Anticipated expiration: 2037-12-05
Also published as: GB201720269D0; GB2570286B

Abstract

An exterior lighting apparatus such as a street light comprises a clamp body 30 defining a first clamping surface 31 for clamping the exterior lighting apparatus to a support shaft 80, and defines at least a first slot 33 and a second slot 34. The first slot 33 is positioned to receive a clamping insert 50 at a first distance from the first clamping surface 31, and the second slot 34 is positioned to receive the clamping insert 50 at a second, different distance from the first clamping surface 31. The clamping insert 50 has a second clamping surface 52 for clamping the exterior lighting apparatus to the support shaft 80, and is shaped for insertion into the first slot 33 or the second slot 34.

Description

(57) An exterior lighting apparatus such as a street light comprises a clamp body 30 defining a first clamping surface 31 for clamping the exterior lighting apparatus to a support shaft 80, and defines at least a first slot 33 and a second slot 34. The first slot 33 is positioned to receive a clamping insert 50 at a first distance from the first clamping surface 31, and the second slot 34 is positioned to receive the clamping insert 50 at a second, different distance from the first clamping surface 31. The clamping insert 50 has a second clamping surface 52 for clamping the exterior lighting apparatus to the support shaft 80, and is shaped for insertion into the first slot 33 or the second slot 34.

FIG. 4C

At least one drawing originally filed was informal and the print reproduced here is taken from a later filed formal copy.

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FIG. 1

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FIG. 2

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FIG. 3A

FIG. 3B

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FIG. 4B

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FIG. 4C

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FIG. 5A

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FIG. 5B

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FIG. 6B

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FIG. Ί

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FIG. 8A FIG. 8B

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FIG. 9

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FIG. 11

TITLE

Exterior Lighting Apparatus

TECHNOLOGICAL FIELD

Embodiments of the present invention relate to an exterior lighting apparatus. In particular, they relate to an exterior lighting apparatus for illuminating a street or a tunnel.

BACKGROUND

An exterior lighting apparatus may be mounted on a support shaft such as lamp post. The portion of the support shaft that the exterior lighting apparatus is mounted on may, for example, have a vertical orientation or a horizontal orientation. Different support shafts may have different diameters. Many exterior lighting apparatuses are configured to be fitted to a support shaft having a particular diameter and a particular orientation, and are not suitable for fitting to support shafts of a different diameters and/or to support shafts of a different orientation.

BRIEF SUMMARY

According to various, but not necessarily all, embodiments of the invention there is provided an exterior lighting apparatus, comprising: a clamp body defining a first clamping surface, for clamping the exterior lighting apparatus to a support shaft, and comprising at least a first slot and a second slot, wherein the first slot is positioned to receive a clamping insert at a first distance from the first clamping surface, and the second slot is positioned to receive the clamping insert at a second distance from the first clamping surface, the second distance being different from the first distance; and a clamping insert, defining a second clamping surface for clamping the exterior lighting apparatus to the support shaft, shaped for insertion into the first slot or the second slot.

The first slot and the second slot may have the same orientation. The clamping insert may define at least one aperture for receiving at least one fixing. The at least one aperture defined by the clamping insert may be positioned to enable a fixing to engage the support shaft.

The first clamping surface may comprise one or more projections for engagement with the support shaft. The clamp body may define at least one aperture for receiving at least one fixing. The at least one aperture defined by the clamp body may be positioned to enable a fixing to engage the support shaft.

The exterior lighting apparatus may further comprise: a housing for housing at least a portion of the clamp body. The clamp body may be rotatable relative to the housing. The housing may comprise an opening for receiving the support shaft.

The exterior lighting apparatus may further comprise: at least one pivot shaft configured to enable the clamp body to rotate relative to the housing. The at least one pivot shaft may include a fixing for fixing the housing to the clamp body in one of a plurality of possible rotational positions.

The exterior lighting apparatus may further comprise: at least one light emitting device configured to emit light; and one or more optical devices arranged to direct light emitted by the at least one light emitting device in a first direction. When the housing is fixed to the clamp body in a first rotational position, a support shaft having a length substantially aligned with the first direction may be receivable by the clamp body. When the housing is fixed to the clamp body in a second rotational position, a support shaft having a length substantially perpendicular to the first direction may be receivable by the clamp body.

The exterior lighting apparatus may further comprise: a boss and a plurality of recesses, each recess corresponding to a possible rotational position. The fixing may be arranged to cause the boss to be positioned into a recess when the fixing is tightened. The boss may be provided on an internal surface of the housing.

The at least one pivot shaft may include first and second pivot shafts separated by a cavity in the clamp body for receiving the support shaft.

The exterior lighting apparatus may further comprise: a stop for preventing the exterior lighting apparatus from sliding along the support shaft when the exterior lighting apparatus is being clamped to the support shaft.

The exterior lighting apparatus may be a street lighting apparatus.

According to various, but not necessarily all, embodiments of the invention there is provided examples as claimed in the appended claims.

BRIEF DESCRIPTION

For a better understanding of various examples that are useful for understanding the detailed description, reference will now be made by way of example only to the accompanying drawings in which:

fig. 1 illustrates a perspective view of an exterior lighting apparatus in a configuration for receiving a vertical portion of a support shaft;

fig. 2 illustrates a perspective view of the exterior lighting apparatus with its housing in an open configuration;

fig. 3A illustrates a perspective view of a clamp body including a clamping insert;

fig. 3B illustrates a perspective view of the clamp body within the housing of the exterior lighting apparatus;

fig. 4A illustrates a perspective view of the clamp body, showing the opposite side of the clamp body relative to fig. 3A;

fig. 4B illustrates an underside view of the clamp body;

fig. 4C illustrates a plan view of the clamp body including the clamping insert;

Fig. 5A illustrates a plan view of a portion of the clamp body;

Fig. 5B illustrates a front elevation of a clamping surface of the clamp body;

Fig. 6A illustrates a plan view of the clamping insert;

Fig. 6B illustrates a front elevation of a clamping surface of the clamping insert;

fig. 7 illustrates a fixing member for fixing the clamp body to the housing in a particular orientation;

fig. 8A illustrates a first perspective view of a part of the housing without the clamp body therein;

fig. 8B illustrates a second perspective view of a part of the housing without the clamp body therein;

fig. 9 illustrates the clamp body within the housing following rotation of the clamp body relative to the housing;

fig. 10 illustrates a support shaft received by the clamp body following rotation of the clamp body relative to the housing; and fig. 11 illustrates a perspective view of an exterior lighting apparatus in a configuration for receiving a horizontal portion of a support shaft.

DETAILED DESCRIPTION

Embodiments of the invention relate to an exterior lighting apparatus which comprises means for enabling the apparatus to be mounted to support shafts of different orientations and different diameters. Advantageously, the configurable nature of the apparatus obviates the need for a fitter to carry multiple different lighting apparatuses, where each one is only suitable for fitting to a support shaft of a particular orientation and of a particular diameter.

Fig. 1 illustrates a perspective view of an exterior lighting apparatus 100 in a configuration in which the apparatus 100 is able to receive a vertical portion of a support shaft. The adjustable exterior lighting apparatus 100 may, for example, be a street lighting apparatus for illuminating a portion of a road/street.

The apparatus 100 comprises a housing 10 which in turn comprises a first housing part 12, a second housing part 14 and a third housing part 15. The first housing part 12 and the second housing part 14 are connected by a hinge 16 which enables the housing 10 to transition from a closed configuration (as shown in fig. 1) to an open configuration (as shown in fig. 2). The first housing part 12 is shaped to cover components mounted within the second and third housing parts 14, 15 when the housing 10 is in a closed configuration.

The apparatus 100 comprises one or more optical devices and a plurality of light emitting devices. The one or more optical devices may be one or more lenses in a lens array 20. In the illustrated example, the underside of the second part 12 of the housing 10 includes a transparent layer 18 which may, for example, be made from a plastics material. The lens array 20 is incorporated within the transparent layer 18 and positioned beneath the light emitting devices 20. The lens array 20 is fixed in position in the housing. The light emitting devices are configured to illuminate an area, such as a portion of a street/road, by emitting light through at least some of the lenses in the lens array 20.

Fig. 2 illustrates a perspective view of the exterior lighting apparatus 100 with the housing 10 in its open configuration. It can be seen from fig. 2 that the opening of the first part 12 of the housing reveals the interior of the second part 14 of the housing 10 and the interior of the third part 15 of the housing 10. Drive electronics 82 are mounted to the second part 14 of the housing. The drive electronics 82 are configured to drive the light emitting devices to emit light.

A combination of the first part 12 of the housing 10 and the third part 15 of the housing 10 is configured to house a clamp body 30. The clamp body 30 is configured to receive a clamping insert 50, as shown in fig. 2.

Fig. 3A illustrates a first perspective view of the clamp body 30. Fig. 3B illustrates a perspective view of the opposite side of the clamp body 30, where the clamp body 30 is positioned at least partially within the third part 15 of the housing 10. Fig. 4A illustrates the clamp body 30 from the same perspective as fig. 3B, but with the housing 10 removed. Fig. 4B illustrates an underside view of the clamp body 30. Fig. 4C illustrates a plan view of the clamp body 30.

The clamp body 30 includes a passage/open cavity 48 for receiving a portion of a support shaft 80. In fig. 3B, the portion of the support shaft 80 that has been received in the cavity 48 is of a vertical orientation.

The clamp body 30 defines a first clamping surface 31 for clamping the exterior lighting apparatus 100 to the portion of the support shaft 80 that is received in the cavity 48.

The clamp body 30 further comprises a plurality of slots 33-36 for receiving the clamping insert 50. The clamping insert 50 defines a second clamping surface 51 for clamping the exterior lighting apparatus 100 to the support shaft 80. The clamping insert 50 is shaped for insertion into any one of the slots 33-36. Each of the slots 3336 has the same orientation. When the clamping insert 50 is positioned in one of the slots 33-36, the second clamping surface 51 faces the first clamping surface 31 of the clamp body 30.

A fitter of the apparatus 100 may select an appropriate slot in which to insert the clamping insert 50, in order to enable the apparatus 100 to be fitted to a support shaft 80 of a particular diameter. The position of the clamping insert 50 relative to the first clamping surface 31 defines the size of the cavity 48 in which the portion of the support shaft 80 is received in the clamp body 30.

A first slot 33 is positioned to receive the clamping insert 50 at a first distance from the first clamping surface 31 of the clamp body 30. A second slot 34 is positioned to receive the clamping insert 50 at a second distance from the first clamping surface 31 of the clamp body 30. The second distance is different from and greater than the first distance.

A third slot 35 is positioned to receive the clamping insert 50 at a third distance from the first clamping surface 31 of the clamp body 30. The third distance is different from and greater than both the second distance and the first distance. A fourth slot in the clamp body 30 is positioned to receive the clamping insert 50 at a fourth distance from the first clamping surface 31 of the clamp body 30. The fourth distance is different from each of the third, second and first distances and greater than the third, second and first distances.

In some embodiments, the first slot 33 is positioned to enable a portion of a support shaft 80 having a diameter of 76mm to be clamped in the cavity 48 between the first clamping surface 31 and the second clamping surface 52 of the clamping insert 50. The second slot may be positioned to enable a support shaft 80 having a diameter of 60mm to be clamped within the cavity 48. The third slot may be positioned to enable a support shaft 80 having a diameter of 42mm to be clamped within the cavity 48. The fourth slot may be positioned to enable a support shaft 80 having a diameter of 34mm to be clamped within the cavity 48.

The skilled reader will understand that fewer slots 33-36 or a greater number of slots 33-36 may be provided in the clamp body 30 and that each of those slots may be positioned to receive a support shaft 80 having one of the diameters described above, or a different diameter.

Once the clamping insert 50 has been positioned in one of the slots 33-36, a cover 40 may be fixed to the clamp body 30 to cover at least a portion of at least the slot 33-36 into which the clamping insert 50 has been inserted, in order to prevent the clamping insert 50 from falling out of the clamp body 30 if the clamp body is subsequently rotated (as described herein later). The cover 40 may cover a portion of all of the slots 33-36. In the illustrated example, the cover 40 is arranged to cover an edge of each of the slots 33-36. Figures 3A, 3B and 4A illustrate the cover 40 after it has been attached to the clamp body 30 using a fastener 41. The fastener 41 may be a screw.

Fig. 5A illustrates a plan view of a portion of the clamp body 30. Fig. 5B illustrates a front elevation of a (first) clamping surface 31 of the clamp body 30.

The first clamping surface 31 of first clamp body 30 includes one or more projections 32 for engagement with the support shaft 80, when the support shaft 80 is positioned in the cavity 48. The projections 32 are best seen in fig. 3B, fig. 4A and in figs 5A and 5B.

The first clamping surface 31 of the clamp body 30 defines a channel 28. The clamp body 30 also defines at least one aperture 22, 23, 27 for receiving at least one fixing 44, 45. In the illustrated example, the clamp body 30 includes a slot 27 and a plurality of additional apertures 22, 23 positioned in the channel 28. Fixings 44, 45 in the form of one or more bolts (see fig. 3A) are positioned to extend through the apertures 22, 23, 27 in the clamp body 30. The channel 28 is configured to receive a nut for each fixing 44, 45. In the illustrated example, two fixings 44, 45 are used. A nut for one of the fixings 44 can be seen, for example, in fig. 4A and is illustrated with the reference numeral 46.

The channel 28 is partially defined by at least one rim 29. In the illustrated example, a plurality of rims 29 are provided. The rim(s) 29 provide(s) a fixing surface against which the nuts of the fixings 44, 45 may be urged. This is described in further detail below.

The apparatus 100 is supplied with the fixings 44, 45 extending through the apertures 22, 23 and the nuts 46 positioned in the channel 28. The fixings 44, 45 and the nuts 46 are not shown in figs 5A and 5B, however, for clarity so that the illustrated portions of the clamp body 30 can clearly be seen.

Fig. 6A illustrates a plan view of the clamping insert 50. Fig. 6B illustrates a front elevation of a (second) clamping surface 51 of the clamping insert 50. The second clamping surface 51 of the clamping insert 50 comprises teeth 52 for engagement with the support shaft 80, when the support shaft 80 is positioned in the cavity 48. The second clamping surface 51 of the clamping insert 50 also defines a channel 53 and one or more apertures 55, 56. Each of the apertures 55, 56 is arranged to receive a fixing 62, 63 in the form of a bolt, for example. The apertures 55, 56 are positioned in the channel 53 in the illustrated example.

The channel 53 is arranged to receive a nut 64 for each fixing 62, 63. In the illustrated example, two fixings 62, 63 are used. A nut for one of the fixings 62 can be seen, for example, in fig. 4C and is illustrated with the reference numeral 64.

The channel 53 is partially defined by at least one rim 54. In the illustrated example, a plurality of rims 54 are provided. The rim(s) 54 provide(s) a fixing surface against which the nuts of the fixings 62, 63 may be urged. This is described in further detail below.

The clamping insert 50 is supplied with the fixings 62, 63 extending through the apertures 55, 56 and the nuts 64 positioned in the channel 53. The fixings 62, 63 and the nuts 64 are not shown in figs 6A and 6B, however, for clarity so that the illustrated portions of the clamping insert 50 can clearly be seen.

The apparatus 100 further comprises a stop 49 for preventing the exterior lighting apparatus 100 from sliding along the support shaft 80 when the exterior lighting apparatus 100 is being clamped to the support shaft 80 (while a portion of the support shaft 80 is positioned within the cavity 48). In the illustrated example, the stop 49 covers an opening at one end of the channel 28 in the clamping surface 31 of the clamp body 30, as shown in fig. 3B for example.

The clamp body 30 further comprises a first compartment 38 and a second compartment 39, as shown in figs 3A to 4C, for example. The first compartment 38 is separated from the second compartment 39 by the cavity 48. Each of the first and second compartments 38, 39 are each configured to house a nut 43, 74 and part of a pivot shaft.

In case of the second compartment 39, the pivot shaft is provided by a pivot pin 42. The pivot pin 42 passes through the housing 15 and through the clamp body 30. It is configured to enable the housing 30 to rotate relative to the third part 15 of the housing 10.

The pivot pin that passes into the first compartment 38 is provided by a fixing 70 which may, for example, be a bolt. The fixing 70 passes through a washer 71 and a fixing member 72, as well as the third part 15 of the housing 10 and a wall of the compartment 38. The washer 71 and the fixing member 72 are positioned between the third part 15 of the housing 10 and the clamp body 30. The fixing member 72 includes a plurality of radial recesses 73, where each pair of adjacent radial recesses 73 is positioned between a ridge. Fig. 7 illustrates the fixing member 72 in more detail.

Fig. 8A illustrates a first perspective view of an interiorof the third part 15 of the housing 10. Fig. 8B illustrates a second perspective view of an interior of the third part 15 of the housing. It can be seen in fig. 8B that a boss 17 is positioned on the interior of the third part 15 of the housing. Each of the recesses 73 in the fixing member 72 corresponds to a different possible rotational position for the clamp body 30, relative to the third part 15 of the housing 10. The fixing/bolt 70 is arranged to tighten the fixing member 72 against the boss 17 on the interior surface of the third part 15 of the housing 10, in order to fix the clamp body 30 to the housing 10. If the fixing 70 has not been tightened, it acts as a pivot pin which enables the clamp body 30 to rotate relative to the third part 15 of the housing 10. The fixing 70 is separated from the pivot pin 42 by the cavity 48.

The third part 15 of the housing 10 includes an opening 19 though which a support shaft 80 passes when it is received by the clamp body 30.

A process of fixing the exterior lighting apparatus 100 to a portion of a support shaft 80 will now be described. Typically, the portion of the support shaft 80 is either vertically or horizontally orientated, but this need not necessarily be the case. In this example, the portion of the support shaft 80 is substantially vertically orientated (e.g. see fig 3B).

Initially, a fitter may place the housing 10 into its open configuration and places the clamping insert 50 into the appropriate slot 33-36 for the diameter of the support shaft 80, while the housing 10 remains in its open configuration. The fitter then places the apparatus 100 onto the support shaft 80, such that a portion of the support shaft 80 enters the cavity 48. The stop 49 halts the movement of the apparatus 100 along the support shaft 80 when it abuts the end of the support shaft 80.

Either prior to or after positioning the apparatus 100 onto the support shaft 80, the fitter fixes the clamp body 30 in a particular rotational position relative to the housing 10 by tightening the fixing/bolt 70 in the manner described above. The fixing 70 is accessible to the fitter irrespective of whether the housing 10 is in its open configuration or its closed configuration.

In order to clamp the apparatus 100 against the support shaft 80, the fitter urges the fixings 62, 63 which pass through the clamping insert 50 towards the support shaft 80. For example, where the fixings 62, 63 are bolts, the fitter urges the fixings towards the support shaft 80 by applying a force in the direction of the support shaft 80 and rotating the bolts 62, 63. This urges the nuts 64 in the channel 53 against the fixing surface provided by the rims 54, preventing/mitigating rotation of the nuts by means of friction.

Movement of the fixings 62, 63 towards the support shaft 80 cause the fixings 62, 63 to directly engage with the support shaft 80 by abutting the support shaft 80 and cause the first clamping surface 31 (and, in particular, the protrusions 32 in the first clamping surface 31) to engage with the support shaft 80 by abutment. This clamps the apparatus 100 to the support shaft 80, holding the apparatus 100 in position.

Note that the fixings 44, 45 which pass through the apertures 22, 23 in the clamp body 30 have not been used in this instance to clamp the apparatus 100 to the support shaft 80. This is because those fixings 44, 45 are not accessible to the fitter when the clamp body 30 is oriented relative to receive a vertically disposed support shaft 80 (e.g. see fig. 3B).

Note also that the fixings 62, 63 which pass through the clamping insert 50 are accessible to the fitter irrespective of whether the housing 10 is in its closed configuration or its open configuration. In the closed configuration, the opening 19 in the third part of the housing 19 provides the fitter with access to the fixings 62, 63. A fitter may therefore place the housing 10 into its closed configuration before clamping the apparatus 100 to the support shaft 80. This may be advantageous for safety reasons (e.g. if the apparatus 100 is being fitted in an outdoor environment and it is raining).

If the exterior lighting apparatus 100 is to be fitted to a portion of a support shaft 80 that is horizontally orientated, either prior to or after positioning the apparatus 100 onto the support shaft 80 the fitter fixes the clamp body 30 in the desired rotational position relative to the housing 10 by tightening the fixing/bolt 70 in the manner described above. Fig. 9 illustrates the clamp body 30 within the housing following rotation of the clamp body 30 relative to the housing 10 by substantially 90 degrees, compared with the orientation shown in figures 3A to 4C.

If the housing 10 is in its open configuration, the fixings 62, 63 which pass through the clamping insert 50 are accessible to the fitter. However, as mentioned above, it is desirable for safety reasons for the housing 10 to be in its closed configuration when the apparatus 100 is being clamped to the support shaft 80. The opening 19 in the third part of the housing 10 is shaped to enable the fitter to access the fixings 44, 45 that pass through the apertures 22, 23 in the clamp body 30.

In order to clamp the apparatus 100 against the support shaft 80, the fitter urges the fixings 44, 45 which pass through the clamp body 30 towards the support shaft 80. For example, where the fixings 44, 45 are bolts, the fitter urges the fixings towards the support shaft 80 by applying a force in the direction of the support shaft 80 and rotating the bolts 44, 45. This urges the nuts 46 in the channel 28 against the fixing surface provided by the rims 29, preventing/mitigating rotation of the nuts by means of friction.

Movement of the fixings 44, 45 towards the support shaft 80 cause the fixings 44, 45 to directly engage with the support shaft 80 by abutting the support shaft 80 and cause the second clamping surface 51 (and, in particular, the teeth 52 in the second clamping surface 51) to engage with the support shaft 80 by abutment. This clamps the apparatus 100 to the support shaft 80, holding the apparatus 100 in position.

Note that the fixings 62, 63 which pass through the apertures 55, 56 in the clamping insert 50 have not been used in this instance to clamp the apparatus 100 to the support shaft 80, although in some circumstances, if desired, they could be used.

Fig. 10 illustrates a portion of the support shaft 80 positioned in the cavity 48 after the apparatus 100 has been clamped to the support shaft 80.

When the housing 10 is clamped to the support shaft 80 in a first rotational position/orientation, such as a vertical orientation, the optical devices/lenses (provided by the lens array 20) are configured to direct light emitted by the light emitting devices of the apparatus 100 in a (first) direction that is substantially aligned with the length of the support shaft 80 received by the clamp body 30. When the housing 10 is clamped to the support shaft 80 in a second rotational position/orientation, such as a horizontal orientation, the optical devices/lenses are configured to direct light emitted by the light emitting devices of the apparatus 100 in a (second) direction that is substantially perpendicular to the length of the support shaft 80 received by the clamp body 30.

Fig. 10 illustrates a perspective view of the exterior lighting apparatus 100 in a configuration for receiving a horizontal portion of the support shaft 80. It can be seen in fig. 10 that the opening 19 in the third part 15 of the housing 10 enables the fixings 44, 45 to be accessed by the fitter when the clamp body 30 is arranged to receive a horizontally orientated portion of a support shaft 80. The width of the opening 19 at the underside of the third part 15 of the housing 19 is greater than at the side, as shown in fig. 11. This is intended to enable a support shaft 80 of a greater diameter to be received when the support shaft 80 is vertically orientated than when it is horizontally orientated. In some implementations, at least one of the slots (e.g. the first slot 33, possibly corresponding with a support shaft diameter of 76mm) may only be suitable for clamping the apparatus 100 to a vertically disposed portion of a support shaft 80 (and not a horizontally disposed portion of a support shaft 80) due to the shape of the opening 19.

Horizontally disposed support shafts of a diameter of 76mm are not presently used. The narrowing of the opening 19 in the third part 15 of the housing 10 helps to protect against ingress of dust, leaves, dirt, etc.

Although embodiments of the present invention have been described in the preceding paragraphs with reference to various examples, it should be appreciated that modifications to the examples given can be made without departing from the scope of the invention as claimed. For example, although support shafts of vertical and horizontal orientations are discussed above, the support shaft to which the apparatus 100 is clamped could be of any orientation.

Features described in the preceding description may be used in combinations other than the combinations explicitly described.

Although functions have been described with reference to certain features, those functions may be performable by other features whether described or not.

Although features have been described with reference to certain embodiments, those features may also be present in other embodiments whether described or not.

Whilst endeavouring in the foregoing specification to draw attention to those features of the invention believed to be of particular importance it should be understood that the applicant claims protection in respect of any patentable feature or combination of features hereinbefore referred to and/or shown in the drawings whether or not particular emphasis has been placed thereon.

Claims

l/we claim: CLAIMS

1. An exterior lighting apparatus, comprising:

a clamp body defining a first clamping surface, for clamping the exterior lighting apparatus to a support shaft, and comprising at least a first slot and a second slot, wherein the first slot is positioned to receive a clamping insert at a first distance from the first clamping surface, and the second slot is positioned to receive the clamping insert at a second distance from the first clamping surface, the second distance being different from the first distance; and a clamping insert, defining a second clamping surface for clamping the exterior lighting apparatus to the support shaft, shaped for insertion into the first slot or the second slot.

2. The exterior lighting apparatus of claim 1, wherein the first slot and the second slot have the same orientation.

3. The exterior lighting apparatus of claim 1 or 2, wherein the clamping insert defines at least one aperture for receiving at least one fixing.

4. The exterior lighting apparatus of claim 3, wherein the at least one aperture defined by the clamping insert is positioned to enable a fixing to engage the support shaft.

5. The exterior lighting apparatus of any of the preceding claims, wherein the first clamping surface comprises one or more projections for engagement with the support shaft.

6. The exterior lighting apparatus of any of the preceding claims, wherein the clamp body defines at least one aperture for receiving at least one fixing.

7. The exterior lighting apparatus of claim 6, wherein the at least one aperture defined by the clamp body is positioned to enable a fixing to engage the support shaft.

8. The exterior lighting apparatus of any of the preceding claims, further comprising:

a housing for housing at least a portion of the clamp body.

9. The exterior lighting apparatus of claim 8, wherein the clamp body is rotatable relative to the housing.

10. The exterior lighting apparatus of claim 8 or 9, wherein the housing comprises an opening for receiving the support shaft.

11. The exterior lighting apparatus of claim 9 or 10, further comprising:

at least one pivot shaft configured to enable the clamp body to rotate relative to the housing.

12. The exterior lighting apparatus of claim 11, wherein the at least one pivot shaft includes a fixing for fixing the housing to the clamp body in one of a plurality of possible rotational positions.

13. The exterior lighting apparatus of claim 12, further comprising:

at least one light emitting device configured to emit light; and one or more optical devices arranged to direct light emitted by the at least one light emitting device in a first direction, wherein, when the housing is fixed to the clamp body in a first rotational position, a support shaft having a length substantially aligned with the first direction is receivable by the clamp body, and when the housing is fixed to the clamp body in a second rotational position, a support shaft having a length substantially perpendicular to the first direction is receivable by the clamp body.

14. The exterior lighting apparatus of claim 12 or 13, further comprising:

a boss and a plurality of recesses, each recess corresponding to a possible rotational position, wherein the fixing is arranged to cause the boss to be positioned into a recess when the fixing is tightened.

15. The exterior lighting apparatus of claim 14, wherein the boss is provided on an internal surface of the housing.

16. The exterior lighting apparatus of any of claims 11 to 15, wherein the at least one pivot shaft includes first and second pivot shafts separated by a cavity in the clamp body for receiving the support shaft.

5

17. The exterior lighting apparatus of any of the preceding claims, further comprising:

a stop for preventing the exterior lighting apparatus from sliding along the support shaft when the exterior lighting apparatus is being clamped to the support shaft.

0

18. The exterior lighting apparatus of any of the preceding claims, wherein the exterior lighting apparatus is a street lighting apparatus.

Intellectual Property Office

Application No: GB1720269.8

Claims searched: 1-18