PEST TRAP

Abstract

A flying pest trap (8) comprises an attraction section (16), an immobilisation section (12), a body section (10) adapted to retain the attraction section (16) and the immobilisation section (12), and a power section (20) adapted to provide power to the attraction section (16), wherein the attraction section (16) includes at least one LED light source located behind the immobilisation section (12).

Claims

1. A flying pest trap comprising an attraction section, an immobilisation section, a body section adapted to retain the attraction section and the immobilisation section, and a power section adapted to provide power to the attraction section, wherein the attraction section includes at least one LED light source located behind the immobilisation section.

2. A flying pest trap according to claim 1, wherein the light source is a UV light source.

3. A flying pest trap according to claim 1, wherein the attraction section includes a plurality of LED light sources.

4. A flying pest trap according to claim 3, wherein the plurality of LED light sources are carried on a printed circuit board.

5. A flying pest trap according to claim 3, wherein the light sources are located behind openings in the immobilisation section.

6. A flying pest trap according to claim 5, wherein the immobilisation section includes a glueboard and the openings are provided in the glue board.

7. A flying pest trap according to claim 6, wherein the light sources are arranged in an evenly spread pattern behind the glueboard, and the openings cut into the glueboard allow light-emitting parts of the light sources to allow UV irradiance to get to a front face of the glueboard.

8. A flying pest trap according to claim 7, wherein each LED is associated with an opening in the glueboard.

9. A flying pest trap according to claim 6, wherein the immobilisation section includes a carrier adapted to receive the glueboard.

10. A flying pest trap according to claim 9, wherein the carrier is translucent.

11. A flying pest trap according claim 1, wherein the attraction section includes at least one light source located forwards of the immobilisation section.

12. An immobilisation section for a flying pest trap, the immobilisation section comprising openings arranged to allow light from a light source to pass through said openings.

13. An immobilisation section according to claim 12, wherein the immobilisation section includes a glueboard.

14. An immobilisation section according to claim 13, wherein the immobilisation section includes a carrier adapted to receive the glueboard.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0018] For a better understanding of the invention and to show how the same may be brought into effect, embodiments of the same will now be described with reference to the accompanying drawings, in which:

[0019] FIG. 1 is a schematic front view of a prior art flying pest trap;

[0020] FIG. 2 is a schematic plan view of a glueboard of a flying pest trap with a prior art peripheral arrangement of LED light sources;

[0021] FIG. 3 is a schematic plan view of a glueboard of a flying pest trap according to an embodiment of the invention with an array of LED light sources located in openings in the glueboard;

[0022] FIG. 4 is a schematic front view of a flying pest trap according to an embodiment of the invention incorporating the glueboard of FIG. 3;

[0023] FIG. 5 is a schematic perspective view of a flying pest trap according to an embodiment of the invention incorporating the glueboard of FIG. 3 and an array of fluorescent light sources;

[0024] FIG. 6 is a schematic exploded perspective view of an LED glueboard cassette for use in the flying pest trap of FIGS. 4 and/or 5;

[0025] FIG. 7 is a partial schematic perspective view of the LED glueboard cassette of FIG. 6 being inserted into a body section of the flying pest trap of FIGS. 4 and/or 5; and

[0026] FIG. 8 is a graph of light output from LED and fluorescent light sources respectively.

DETAILED DESCRIPTION

[0027] Existing pest traps for flying pests, an example of which is a pest trap 8 as shown in FIG. 1 comprise a body 10, an immobilisation section 12 that includes a glueboard 14 and an attraction section 16 that includes one or more light sources 18a,b,c, which typically are chosen to output at least partly in the UV spectrum to attract pests, such as flies and moths. The pest trap 8 includes a power section 20 that receives power from an external source and provides power to the attraction section 16.

[0028] Effective pest traps combine both direct and reflected UV irradiance, to maximise output and attract flying insects. The UV is emitted directly to the environment from the light sources 18a-c and also UV from the light sources 18a-c that hits the glueboard 14 for example is reflected by the glueboard and then outwards to the environment.

[0029] Effective pest traps position the light sources 18a-c as close as possible to the immobilisation section 12, especially the glueboard 14. If parts of the glueboard 14 are too far away from the light sources 18a-c, they will not catch insects, or the effectiveness will be substantially reduced.

[0030] Light sources 18a-c are typically UV fluorescent tubes that sit in front of the glueboard 14, ensuring as much of the glueboard 14 as possible is useful for catching flies or other flying pests.

[0031] If LEDs are used as an attraction section 16 UV source, then due to their wiring requirements, they cannot sit in front of the glueboard 14, because the typical point source of an LED cannot replicate the 360 degree illumination of a fluorescent tube. As a result, typically, LEDs 15 are positioned around a perimeter of the glueboard 14, as shown in FIG. 2.

[0032] There is a disadvantage of this arrangement, because it results in a significant dead area towards the centre of the glueboard 14 at which there is no illumination from the LEDs 15, as shown in FIG. 2.

[0033] FIG. 3 shows a configuration of UV-emitting LEDs 36 according to an embodiment of the invention. The LEDs 36 are arranged in a pattern that may be evenly spread behind a glueboard 38, with appropriate apertures 40 cut into the glueboard to allow light-emitting parts of the LEDs 36 to allow UV irradiance to get to the front face of the glueboard 38. Only some apertures 40 are given reference numerals to assist clarity. Each LED 36 is associated with an aperture 40. Therefore, the use of at least one LED 36 protruding through the glueboard 38 offers advantages in light spread.

[0034] The arrangement in FIG. 3 reduces and/or removes dead areas in the illumination spread from the LED light sources 36 on the glueboard 38. The spread of light is shown in FIG. 3 to be much more even by the lack of dead spots in the light spread that is emitted by the LEDs 36.

[0035] FIG. 4 shows a flying pest trap 34 that incorporates the glueboard 38 shown in FIG. 3 as part of an immobilisation section 37. The flying pest trap 34 includes a body 10 and a power section 20, similar in functionality to those shown in FIG. 1. The body 10 includes rails (see FIG. 7) in which a glueboard is typically received. Light sources 36 of an attraction section 39 are LEDs 36 arranged in a grid pattern on the glueboard 38 that forms an immobilisation section of the flying pest trap 34.

[0036] FIG. 5 shows an alternative construction to that in FIG. 4 and includes fluorescent light sources 18a-c in addition to the LED light sources. The addition of fluorescent light sources 18a-c provides improvements in light spread when combined with the LEDs 36.

[0037] FIG. 6 shows how the glueboard 38 for either of the pest traps shown in FIGS. 4 and 5 has apertures 40 and is received in a carrier 42 that includes slots 44 to allow the glueboard 38 to be slid into the carrier 42. The carrier 42 is made of a translucent material, because the LEDs 36 are located on a printed circuit board (PCB) 46 that sits behind the glueboard 38 and is secured to a rear of the carrier 42.

[0038] FIG. 7 shows how the PCB 46, glueboard 38 and carrier 42 are inserted into runner grooves or rails 48 in a rear section of the body 10. The runner grooves are the same as those typically used in a prior art immobilisation section 12 to receive a prior art standard glueboard 14, like that shown in FIG. 1. Thus there is advantageous use of an existing body 10 to implement the embodiment described herein. The PCB 46 is electrically connected to the power section to receive an electrical supply to power the LEDs 36.

[0039] In use, the evenly spread LEDs 36 provide an even spread of UV light for attracting flying pests to the immobilisation section for immobilisation on the glueboard 38. The glueboard then has a longer life, because the space on the glueboard is used more evenly and there is a reduced likelihood of sections of the glueboard becoming overloaded with trapped pests.

[0040] The use of LEDs 36 is also advantageous because there is no fade in light output over time with LEDs 36 compared to fluorescent tubes 18a-c, as shown in the graph of FIG. 8 from which it can be seen that over a period of 12 months or so light output from a fluorescent tube may reduce by 25% or more, whereas no reduction is experienced with LEDs. The light output of fluorescent tubes 18a-c reduces significantly over time, which reduces the attractive power of the attraction section over time.

[0041] Attention is directed to all papers and documents which are filed concurrently with or previous to this specification in connection with this application and which are open to public inspection with this specification, and the contents of all such papers and documents are incorporated herein by reference.

[0042] All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive.

[0043] Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic series of equivalent or similar features.

[0044] The invention is not restricted to the details of the foregoing embodiment(s). The invention extends to any novel one, or any novel combination, of the features disclosed in this specification (including any accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed.