EP3916299A1 - Projecteurs de plafond encastrés à flux dirigé vers le bas - Google Patents

Projecteurs de plafond encastrés à flux dirigé vers le bas Download PDF

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Publication number
EP3916299A1
EP3916299A1 EP21176228.1A EP21176228A EP3916299A1 EP 3916299 A1 EP3916299 A1 EP 3916299A1 EP 21176228 A EP21176228 A EP 21176228A EP 3916299 A1 EP3916299 A1 EP 3916299A1
Authority
EP
European Patent Office
Prior art keywords
support member
screw
tab
upper region
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21176228.1A
Other languages
German (de)
English (en)
Inventor
Torben Dahl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daxtor AS
Original Assignee
Daxtor AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daxtor AS filed Critical Daxtor AS
Publication of EP3916299A1 publication Critical patent/EP3916299A1/fr
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
    • F21V21/04—Recessed bases
    • F21V21/041—Mounting arrangements specially adapted for false ceiling panels or partition walls made of plates
    • F21V21/042—Mounting arrangements specially adapted for false ceiling panels or partition walls made of plates using clamping means, e.g. for clamping with panel or wall
    • F21V21/043—Mounting arrangements specially adapted for false ceiling panels or partition walls made of plates using clamping means, e.g. for clamping with panel or wall actuated by screwing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling

Definitions

  • This invention relates to a downlight fixture, comprising: a flange; a support member coupled to the flange and having an upper region spaced and a lower region closer to the flange than the upper region, said support member comprises one or more side surfaces and a recess; a tab moveably coupled to the support member such that at least a part of said tab is moveable between a first position, where a part of the tab is protruding beyond the support member's side surface and a second position where the tap is positioned in the recess without any part extending beyond the support members side surface; a tab is moveably coupled to the support member such that at least a part of said tab is moveable between a first position, where a part of the tab is protruding beyond the support member's side surface and a second position where the tap is positioned in the recess without any part extending beyond the support members side surface; a screw that extends substantially between the upper region of the support member and the lower region of the support member, said screw and said tab being
  • Downlight fixtures There are various types of downlight fixtures available. Downlights are very popular for multiple reasons including aesthetics, options available for lighting arrangements, as well as amount of light output.
  • the downlight fixtures heretofore known suffer from several disadvantages which include being difficult to use, being difficult to install, being unduly complex, being limited in application and being difficult to remove.
  • Downlight fixtures are usually designed with a circular support member (but it may well be, for example, square) which is inserted into a hole in a ceiling designed for that purpose.
  • the support member is designed for this with a flange facing the ceiling when the support member is inserted into the hole.
  • the support member is attached to the ceiling structure by means of the flange, which engages firmly with the one side of the ceiling/ceiling structure, and a "unfoldable tab" that engages with the other side.
  • the tab is with a thread attached to a screw that essentially runs between a lower region of the support member (the part that is facing the room when the support member is mounted in the ceiling of the room) and the upper region (the part that faces the ceiling when the support member is mounted).
  • the tab is rotated into a dedicated recess in the support member.
  • the recess is so large (deep) that the tab can lie in it while the support member is inserted into the hole.
  • the screw is then turned to the right, which turns the tab (due to friction in the threads) to the right until it reaches a suitable stop in an "unfolded position" where a part of it protrudes beyond the surface of the support member, preferably approximately perpendicular to the surface (periphery) of the insert part.
  • said screw is in releasable engagement with said support member and said releasable engagement is adapted such that the screw is maintained in the position where it extends substantially between the upper region of the support member and the lower region of the support member as long as turning of the screw causes the tab to move unobstructed towards the upper region of said support member and releasing the screw when the tab meets an obstruction.
  • figure 1 is shown an embodiment of a downlight fixture according to the invention.
  • the fixture comprises a flange 2 and a support member 3 coupled to the flange and having a longitudinal axis L.
  • the support member has an upper region UR spaced from the flange and a lower region LR closer to the flange than the upper region.
  • the support member comprises one or more side surfaces 4 and a recess 5.
  • the recess 5 is mutually adapted to a tab 6 such that the tab 6 can lie inside it without any part of it protruding beyond the perimeter defined by the side surfaces 4.
  • the tab 6 is moveably coupled to the support member 6 such that at least a part of said tab is moveable between a first position, where a part of the tab is protruding beyond the support member's side surface 4 and a second position where the tap is positioned in the recess 5 without any part extending beyond the support members side surface.
  • the tab is attached to a screw member 7 functionally coupled to the tab such that the tab is biased towards or away from the flange when the screw is rotated.
  • the screw 7 operationally extends substantially between the upper region of the support member and the lower region of the support member.
  • the screw 7 and the tab 5 are threadedly connected such that rotation of the screw initially causes the at least part of said tab to move in or out of the recess 5 and further, the tab to move towards or away from the flange.
  • the screw is held in a guide in the upper region in such a way that the position of the screw is essentially maintained as long as turning/rotation of the screw causes the tab to move unobstructed between the upper region and the lower region.
  • the upper region is first inserted into an opening (hole) until the flange 2 engages firmly with the underside of the ceiling.
  • the screw 7 is then turned which initially turns the tab (due to friction in the threads) until it reaches a suitable stop in an "unfolded position/first position" where a part of it protrudes beyond the surface of the support member, preferably approximately perpendicular to the surface (periphery) of the support member 3.
  • Continued turning of the screw 7 will then - due to the threaded connection - force the tab towards the lower region LR of the support member, while at the same time maintaining it "unfolded”.
  • the tab will then move (while continuously rotating the screw) until it is prevented from this by the ceiling structure, thereby attaching the support member to the ceiling structure. This process is repeated with all screw / tab connections.
  • the releasable engagement is in the embodiment shown in figure 2 achieved by use of a ring-shaped snap coupling element 8 provided with a bead on the inside.
  • the ring-shaped snap coupling element 8 is in this embodiment located in an opening and in the same opening, but below the ring is the screw head 7 located. When the screw head is mounted in engagement the screw head is "snapped" in behind the bead (the bead is not shown in the figures).
  • Snap couplings are well known features for a skilled person and accordingly, all other types of snap-couplings that appear to be expedient to a person skilled in the art are also conceivable, for example a frictional based snap-coupling.
  • the ring solution can be mounted in an opening such that it sits on the upper side of the screw head while the screw can be operated through the center opening of the ring.
  • the rings snap-coupling-function can be achieved by providing the ring with a bead on the inside such that the screw head can and will be pressed past (snap) the bead when the tab meets an obstruction on its way towards the upper region of the support member
  • the ring 8 is frictionally attached to the opening such that the ring can be pressed into and out of the frictional engagement with the opening.
  • the center opening in the ring is made such that the screw head cannot pass through the ring, however it still has to be made such that a screwdriver can engage the screw through the center opening.
  • the frictional engagement between the ring and the opening is adapted such that it will be released when the screw is rotated while the tab encounters resistance in its movement towards the upper region UR of the support member.
  • the releasable engagement between the screw and the support member can be made as a frictional engagement between the screw head and a recess formed in the support member and it may be made as a snap coupling comprising a bead formed on the inside of the recess, which bead and recess are adapted to the screw head such that the screw head, due to elasticity of the material, can pass the bead when pressed into the recess.
  • the releasable engagement between the screw and the support member in the downlight fixture may in aspects of the disclosure be made as a snap coupling between the front end of the screw and the support member
  • the releasable engagement between the screw and the support member in the downlight fixture may in aspects of the disclosure be made as a snap coupling comprising a bead formed on the inside of a recess in the support member, which bead and recess are mutually adapted to the front end of the screw such that the front end of the screw due to elasticity of the material, can pass the bead when pressed into the recess.
  • the bead and recess are mutually adapted to the front end such that the bead snap into a depression formed in the front end of the screw when the screw head is inserted into the recess.
  • a releasable engagement may in other aspects of the disclosure be made with a screw comprising a bead formed on the front end of the screw and a thereto mutually adapted indentation formed in an opening in the support member.
  • mutual adaptation is made by providing an indentation on an inner side of the opening such that the bead will snap into the indentation/depression when the screw's front end is inserted into the opening.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP21176228.1A 2020-05-29 2021-05-27 Projecteurs de plafond encastrés à flux dirigé vers le bas Pending EP3916299A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DKPA202000637 2020-05-29

Publications (1)

Publication Number Publication Date
EP3916299A1 true EP3916299A1 (fr) 2021-12-01

Family

ID=76159335

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21176228.1A Pending EP3916299A1 (fr) 2020-05-29 2021-05-27 Projecteurs de plafond encastrés à flux dirigé vers le bas

Country Status (1)

Country Link
EP (1) EP3916299A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0236116U (fr) * 1988-08-31 1990-03-08
US20020157844A1 (en) * 2001-04-25 2002-10-31 Benoit Laflamme Mounting assembly for electronic module
WO2010104347A2 (fr) * 2009-03-11 2010-09-16 거성전자산업(주) Boîtier à encastrer dans le plafond
KR100999995B1 (ko) * 2010-03-11 2010-12-09 거성전자산업(주) 천장 매립형 하우징
DK201800068U3 (da) * 2018-08-27 2019-12-02 Daxtor Aps Downlight-system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0236116U (fr) * 1988-08-31 1990-03-08
US20020157844A1 (en) * 2001-04-25 2002-10-31 Benoit Laflamme Mounting assembly for electronic module
WO2010104347A2 (fr) * 2009-03-11 2010-09-16 거성전자산업(주) Boîtier à encastrer dans le plafond
KR100999995B1 (ko) * 2010-03-11 2010-12-09 거성전자산업(주) 천장 매립형 하우징
DK201800068U3 (da) * 2018-08-27 2019-12-02 Daxtor Aps Downlight-system

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