WO2016086941A1

WO2016086941A1 - Height adjustment device

Info

Publication number: WO2016086941A1
Application number: PCT/DK2015/050372
Authority: WO
Inventors: Torben Dahl
Original assignee: Daxtor Aps
Priority date: 2014-12-03
Filing date: 2015-12-02
Publication date: 2016-06-09

Abstract

Height adjustment device 1 for adjusting the relative height of a downlight, electrical mounting box or other fixture relative to a surface, where the device comprises: -a device 1, with means for mounting a down light, electrical mounting box or other fixture, where the device 1 has a surface 2' which in use is visible, and -a cooperating member 5, where on an outer surface 10 of the device 1 is provided a first part of an engagement means 7 and where on a surface of the cooperating member 5, which surface in use is in engagement with the outer surface 10 of the device 1, is provided corresponding engagement means 7', where the engagement means 7,7', provides for adjustment possibilities such that the surface 2' of the device 1 which in use is visible, can be adjusted relative to the surface in which the device 1 is arranged.

Description

HEIGHT ADJUSTMENT DEVICE

Field of the Invention

The present invention relates to a height adjustment device for a downlight, electrical mounting box or other fixture, so that the downlight, electrical mounting box or other fixture allows adjustment by which the final product comes in the plane of the building part or the furniture element in which the downlight, electrical mounting box or other fixture shall be mounted.

Background of the Invention

In EP 1 739 347 is disclosed a downlight fixture specifically designed for flexible stretch ceilings. A base member is fastened to a girder construction by means of screws/nails. The base member is provided with an internal thread into which a closed cup shaped member having a complementary thread may be screwed. By rotating the cup shaped member relative to the fixed base member the correct position of the bottom of the cup, relative to the stretch ceiling, may be achieved.

Hereafter a downlight or other ceiling fixture may be mounted in the bottom of the cup. Both the base member and the cup-shaped member will be hidden behind the stretch ceiling, and only the downlight or other ceiling fixture will be visible on the stretch ceiling. The downlight cannot be adjusted relative to the cup shaped member, and once the stretch ceiling is in place there is no access to the cup shaped member for adjustment or the like. Consequently it is necessary to adjust the cup shaped member correctly, before installing the ceiling.

Description of the Invention

The invention meets this demand by providing a height adjustment device 1 for ad- justing the relative height of a downlight, electrical mounting box or other fixture relative to a surface, where the device comprises:

- a device 1, with means for mounting a downlight, electrical mounting box or other fixture, where the device 1 has a surface 2' which in use is visible, and

- a cooperating member 5, where on an outer surface 10 of the device 1 is provided a first part of an engagement means 7 and where on a surface of the cooperating mem- ber 5, which surface in use is in engagement with the outer surface 10 of the device 1, is provided corresponding engagement means 7', where the engagement means 7,7', provides for adjustment possibilities such that the surface 2' of the device 1, which in use is visible, can be adjusted relative to the surface in which the device 1 is arranged.

Further preferred embodiments appear from the dependent claims. Description of the Drawing

The invention will now be explained with reference to the accompanying drawings, in which

Figure 1 shows an example of downlight height adjuster separated

Figure 2 shows downlight height adjuster partially assembled

Figure 3 shows downlight height adjuster fully assembled

Figure 4 shows a cross section through a device mounted in a ceiling. Detailed Description of the Invention

In Figure 1 is shown a device 1, and for the sake of clarity, some parts of the device are removed. What is depicted is the back of the device, i.e. it is the parts which are to be up against the building part, typically ceiling or furniture item, and except for the not visible outer surface 2' (see fig 4) these features will not be visible in use as they are hidden by the ceiling or furniture surface. The device 1 consists of a mounting plate 2 and a holding device 3 for the light source (not shown). The height adjustment device comprises two elements, partly the unit 1 and a cooperating element 5. When installing the device 1 the mounting procedure will typically require the drilling of a hole in the building or the furniture element in which the device is to be mounted, so that the outer periphery 6 of the co-operating element 5 can be placed in the opening.

The interior of the co-operating element 5 is in this example provided with a thread 7, which acts as retaining element relative to the device 1. On the outer surface 10 of the device 1 is also provided a thread 7 '. Thus, by rotating the co-operating element 5 of the element 1, the two retaining elements 7, 7' enable the co-operating member 5 which is adapted to be secured in the structure in which a downlight, electrical mounting box or other fixture may be height adjusted simply by turning the co-operating element 5 relative to the element 1 by which the thread 7, 7' moves the cover plate 2, respectively, nearer or further from the surrounding structural member.

In Figure 2, the co-operating member 5 is shown partially mounted on element 1, and in Figure 3 the co-operating member 5 is fully mounted on an outer surface of the element 1. In this position the two retaining elements 7 and 7 ' are brought into contact such that the co-operating member 5 is screwed onto the threads provided on the outer surface 10 (see Figure 1), whereby the distance between the co-operating element 5 and the cover plate 2 can be varied.

In order to maintain the entire assembly in a fixed relationship to the surrounding building element or furniture element, a spring 12 is provided in an outer periphery of the co-operating member 5. By inserting the co-operating member 5 into an opening in the building element or furniture element, the spring 12 will clamp the co-operating element 5 in a fixed relationship with respect to the building part, so that the entire unit, a downlight, electrical mounting box or other fixture will be held securely in the building part.

As an alternative to the thread, the outer surface 10 of part 1 may be provided with a rubber-layer or an O-ring or the like, which provide high friction, such that the cooperating element 5, which in this variant is provided with a smooth surface, can slide / is displaced along the outer surface, thereby also changing the distance between the cover plate 2 and the attachment to the building part or item of furniture. To maintain the device relative to the building part, instead of the spring element 12 traditional expanding springs may be provided which go into the back of the building element / item of furniture in order to keep the co-operating element and thus the entire device firmly held in the building part. In Figure 4 is illustrated a cross section through a device 1 mounted in a ceiling 21. An appropriate hole is drilled or formed in the ceiling in order to accommodate the device 1. The diameter of the hole corresponds to the outer diameter of the cooperating element 5, such that the spring 12 arranged on the outer periphery of the cooperating element is brought into a fixed relationship with the ceiling 21. Due to the provision of the threads 7, T the cover plate 2, and the means for mounting for example a downlight (not illustrated) are screwed into the co-operating member 5 and height adjusted such that the cover plate is close to the ceiling 21. The downlight or other fixture is to be mounted in the aperture 20 provided in the device 1.

Claims

1. Height adjustment device 1 for adjusting the relative height of a downlight, electrical mounting box or other fixture relative to a surface, where the device com- prises:

- a cooperating member 5, where on an outer surface 10 of the device 1 is provided a first part of an engagement means 7 and where on a surface of the cooperating mera- ber 5, which surface in use is in engagement with the outer surface 10 of the device 1, is provided corresponding engagement means 7', where the engagement means 7, 7', provides for adjustment possibilities such that the surface 2' of the device 1, which in use is visible, can be adjusted relative to the surface in which the device 1 is arranged.

2. Height adjustment device according to claim 1, wherein the cooperating member 5 is provided with means 12 for attaching/mounting said cooperating member 5 to a surrounding constructional or furniture element.

3. Height adjustment device according to claim 2, wherein the means 12 for attaching/mounting said cooperating member 5 to a surrounding constructional or furniture element is either:

- a resilient spring arranged in or operating in conjunction with the outer periphery of the member 5, or

- resilient/flexible spring members which members after the height adjustment device 1 have been inserted in the constructional or furniture element is expanded thereby fixating the height cooperating member relative to the surrounding constructional or furniture element.

4. Height adjustment device according to claim 1, wherein the engagement means 7, T is either:

- corresponding threads, whereby the device may be turned/rotated relative to the cooperating member 5, or - a substantially smooth surface and where the opposing engagement means is provided with high friction, for example provided by means of a rubber gasket, whereby the device may be brought to slide relative to the cooperating member 5.