EP2558771A1 - Luminaire présentant une tige-support de longueur variable pour un moyen d'éclairage - Google Patents

Luminaire présentant une tige-support de longueur variable pour un moyen d'éclairage

Info

Publication number
EP2558771A1
EP2558771A1 EP10719290A EP10719290A EP2558771A1 EP 2558771 A1 EP2558771 A1 EP 2558771A1 EP 10719290 A EP10719290 A EP 10719290A EP 10719290 A EP10719290 A EP 10719290A EP 2558771 A1 EP2558771 A1 EP 2558771A1
Authority
EP
European Patent Office
Prior art keywords
bands
lamp
support strut
band
extended position
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.)
Granted
Application number
EP10719290A
Other languages
German (de)
English (en)
Other versions
EP2558771B1 (fr
Inventor
Hans Nopper
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.)
Iulite GmbH
Original Assignee
Iulite GmbH
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 Iulite GmbH filed Critical Iulite GmbH
Publication of EP2558771A1 publication Critical patent/EP2558771A1/fr
Application granted granted Critical
Publication of EP2558771B1 publication Critical patent/EP2558771B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing
    • F21S6/002—Table lamps, e.g. for ambient lighting
    • F21S6/003—Table lamps, e.g. for ambient lighting for task lighting, e.g. for reading or desk work, e.g. angle poise lamps
    • 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
    • F21V21/14—Adjustable mountings
    • F21V21/22—Adjustable mountings telescopic
    • 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
    • F21V21/14—Adjustable mountings
    • F21V21/26—Pivoted arms

Definitions

  • the present invention relates to a lamp having a lamp base, an elongated supporting strut held by means of the lamp socket, which can be changed in its length, and a lamp arranged on the support strut.
  • the object of the present invention is therefore to provide a luminaire which, while retaining the functionality of the luminaire known from DE 202 10 215 U1, has a significantly improved mechanical stability of the support strut.
  • a luminaire according to the invention comprises a luminaire base and an elongated support strut held by means of the luminous socket, which can be changed in its length. Furthermore, the luminaire according to the invention comprises a light-emitting means arranged on the support strut.
  • the term light socket in the context of the present application all devices are to be understood that are suitable as a stand or attachment means of the lamp. Also, the support strut does not need to be located directly on the lamp base, but may also extend at a distance from this with the interposition of other support elements.
  • the support strut now consists of at least two bands, each of which can be moved from a rolled-up position to an extended position or vice versa, can be rolled up for itself and are mechanically connected at least at one point, such that the bands mechanically adjoin one another in the extended position support.
  • the straps preferably have a low buckling stiffness in their extended position transversely to their extension direction in a first direction, and a high buckling stiffness in a second direction directed counter to the first direction.
  • the term "buckling stiffness” should be understood to mean the ability to maintain the stretched position under the action of a force directed transversely to the direction of extension of the belt.
  • the support strut consists of at least two bands which mutually support one another in the extended position. This improves the construction of the lamp referred to in the utility model DE 202 10 215 U 1 in that no stable stretched position of each individual strip is required on its own. Rather, there is sufficient mechanical stability of the support strut in its extended position just by the fact that the roll-up bands u.U. have no or no sufficient stability on their own, in particular buckling resistance, support one another so that the overall result is sufficient mechanical stability.
  • Particularly suitable bands have proven to have a profile which has a high buckling resistance transversely to the direction of extension of the band in a first spatial direction, and in a direction perpendicular thereto, which is also oriented transversely to the extension direction, a significantly reduced buckling resistance.
  • arch-shaped profiles are mentioned for this, in particular U-shaped profiles. and V-profiles, but also W-profiles or wave profiles in general have this advantageous property.
  • the bands are mechanically connected to each other at least one point, so they stiffen each other, so that one of at least two, but possibly also three , four or more bands existing support strut has a high mechanical strength, in particular a high buckling stiffness in all directions transverse to the extension direction of the support strut.
  • a high mechanical strength in particular a high buckling stiffness in all directions transverse to the extension direction of the support strut.
  • the direction of low buckling stiffness of the bands is oriented in the horizontal direction.
  • the rolled-up part of the support strut is arranged in the luminaire base, in particular held by it.
  • the lamp base can also be advantageously designed so that it is suitable for the attachment of the lamp z. B. on a wall or ceiling surface or a plate of a piece of furniture is suitable.
  • each band of the support strut in its rolled-up state will have a different cross section than in its extended position.
  • the lamp base comprises forming means which are intended to change the cross-sectional shape of each band during extension or insertion of the support strut.
  • the lamp base have a forming portion for an insertable part of the bands, by means of which the bands due to the shaping of the forming area continuously from their cross-sectional shape in the rolled-up position to its cross-sectional shape in its extended position and vice versa be transferred.
  • the forming area thus serves as a guide to transfer the support strut from a stretched to a rolled-up position.
  • the user of the lamp thus only needs to apply a force in the longitudinal direction of the support strut.
  • the support strut can be pivoted about an axis of rotation relative to the horizontal, and in particular in a desired angular position can be determined by the user.
  • the support strut can not only change in length, but can also assume any angular positions.
  • the pivot axis is preferably in the range of the light socket and is aligned horizontally.
  • One way to connect the bands as provided according to the invention in at least one point with each other, is to pierce them at one point and to connect them positively by a screw. But also a cohesive connection z. B. by welding (eg., By welding point), gluing (for example by means of adhesive point) or pressing, or even via positive connection such as a trailing is basically possible.
  • the at least one mechanical connection point is arranged on the outer end of the support strut. Furthermore, he can provide a mechanical connection to the lamp or lamp head.
  • the bands can be electrically conductive. This configuration means that no separate, electrical leads are necessary or visible. For design reasons, this embodiment is advantageous. According to a variant, the bands may also be electrically isolated from each other. Preferably, in this embodiment, the at least one mechanical connection between the bands is made electrically non-conductive.
  • a safety shutdown can be integrated into the lamp according to the invention. This can be integrated in the form of a monitoring device in the lamp, the line resistance of the bands and possibly the Measures bulb. If the measured resistance changes significantly, eg if the bands are bent, ie. a mechanical failure of the support strut, could occur, the monitoring device automatically switches off the voltage supply of the lamp. Such a monitoring device can be integrated in particular in a ballast of the lamp.
  • FIG. 2 shows a plan view of the luminaire according to FIG. 1
  • FIG. 3 shows an enlarged detail from FIG. 2
  • FIG. 2 shows a plan view of the luminaire according to FIG. 1
  • FIG. 3 shows an enlarged detail from FIG. 2
  • FIG. 2 shows a plan view of the luminaire according to FIG. 1
  • FIG. 3 shows an enlarged detail from FIG. 2
  • FIG. 2 shows a plan view of the luminaire according to FIG. 1
  • FIG. 3 shows an enlarged detail from FIG. 2
  • FIG. 3a shows a representation of an alternative embodiment of the support strut in a view analogous to FIG. 3,
  • FIG. 5 is an enlarged sectional view along the line I-I cut in Fig. 3,
  • FIG. 6 is an enlarged sectional view along the line II-II cut in Fig. 4,
  • Fig. 8 enlarged sectional views of various bands with arcuate cross section in the context of the present invention.
  • Fig. 1 shows on the one hand embodiment of a lamp 100, which is essentially a lamp base 1, at an adjustable angle to the horizontal upwardly extending support strut 2 and one at the free end the support strut 2 arranged lampshade 6, which comprises a lighting means 3, z.
  • a lamp 100 which is essentially a lamp base 1, at an adjustable angle to the horizontal upwardly extending support strut 2 and one at the free end the support strut 2 arranged lampshade 6, which comprises a lighting means 3, z.
  • a light bulb a fluorescent tube or a modern semiconductor-based light sources, receives.
  • the lamp base 1 is designed as a hemispherical housing, in which the rolled-up part of the bands 4 together with associated Aufrollmechanik 15, a
  • the support strut 2 is in the lamp 100 shown in FIG. 1 of two bands 4, which can be converted from an extended position to a rolled-up position. In this position, the rolled ends of the bands 4 are completely absorbed in the Aufrollmechanik 15 and disappear virtually completely in the light socket 1.
  • the bands 4 are made of a metal sheet (eg spring steel) with a thickness of typically less than 1 millimeter, preferably below 0, 5 mm, formed, wherein the bands 4 are electrically insulated from each other by a coating applied on all sides or plastic coating.
  • the bands 4 serve as electrical leads for the lamp 3.
  • Fig. 3 represents an enlarged detail of Fig. 2.
  • the bands 4 are connected at its outer end by means of a screw 7 with an elongate attachment lug 12 of the lampshade 6. This will create a hinged connection between
  • Lampshade 6 and support strut 2 realized. Furthermore, the attachment lug 12 is divided transversely to its longitudinal axis, wherein the two parts are mounted in a suitable manner to each other about the common longitudinal axis against each other rotatable. Overall, this results in the adjustability of
  • Lampshade 6 is indicated, namely a twistability of
  • each band 4 in the extended state has an arcuate cross section transverse to its extension direction, as can be seen from FIG. 7, which shows a sectional view through the support strut 2 along the line II in FIG. 1 shows.
  • each individual band 4 has a significantly lower buckling stiffness in the y direction, which extends transversely to the direction of extension, than in the x direction, which also extends transversely to the extension direction. Furthermore, the arcuate cross-section has the consequence that the buckling stiffness of the indicated in Figure 5 with 4.1 bands in the y-direction is significantly less than in the opposite negative y-direction. Comparable properties also have bands 4, whose cross sections one of the in Fig. 8 correspond schematically indicated cross sections. In this case, the cross sections shown in Fig. 8 are only exemplary and not suitable as a final list
  • Fig. 3a shows an alternative embodiment of a support strut 2 of a lamp 100 according to the invention.
  • the arcuate bands 4 are oriented with their backs 9 against each other, so that they are mechanically supported with their backs 9 along a line of contact L, as is apparent from the sectional view of FIG. 7 can be seen, which shows a section along the line III-III in Fig. 3a.
  • the bands 4 When rolled up, the bands 4 are generally rectilinear in cross section (see Fig. 6). However, this is optional, in principle a change in the cross section of the bands 4 when rolling up is not absolutely necessary. In this flat state, a greater stress is generated on the inner surface 9 of the band 4 than on the outer surface 8. However, perpendicular to the illustrated cross-section, the stresses on the inner surface 9 and on the outer surface 8 are substantially equal, so that the straight shape is assumed ,
  • Each band 4 is associated with its own Aufrollmechanik 15, as shown in the plan view of FIG. 2 can be seen.
  • Each roll-up mechanism 15 is formed in the manner known in the art from roll-up metal tapes which, when not in use, are e.g. be pulled by spring force into a housing and rolled up there.
  • Lamp base 1 a pivoting device 13 is arranged, on which the two Aufrollmechaniken 15 of the two bands 4 are jointly stored, so that the bands 4 can be pivoted jointly in its extended position about a horizontal axis of rotation P.
  • the pivoting device 13 is designed to be self-locking, so that the support strut 2 is held regardless of its extension length in each angle position desired by the user.
  • the pivoting device is shown in FIGS. 1, 2 and 4.
  • Each Aufrollmechanik 15 in turn comprises a rotatably mounted shaft 10, on each of which a tape 4 can be rolled up, as shown in FIG. 4 can be seen.
  • each band 4 is mechanically biased against its extension direction by means of a force acting on the respective shaft 10 spring (not shown).
  • each roll-up mechanism 15 is designed to be self-locking, such that each band 4 is mechanically locked in any extension state desired by the user.
  • each embarkrollmechanik 15 each comprise a forming region 5, as indicated schematically in Fig. 4. When the support strut 2 is withdrawn, the forming area 5 ensures the forming of the bands 4 from the straight-line cross section according to FIG. 6 into an arcuate cross section z. As shown in FIG. 5 or 7 and when driving in the support strut 2 for the forming of the bands 4 of an arcuate in a rectilinear cross-section.
  • This pivoting device 13 is rotatably mounted on a shaft 11 with the formation of the rotation axis P, which in turn rotatably connected to the housing of the
  • the support strut 2 is at least as far as its part extended from the lamp base 1 part, designed to be variable in length. By applying a manual force in the longitudinal direction of the support strut 2 can be this either slide into the lamp base 1, so that the lower ends of the bands 4 about the shaft 10, which is rotatably mounted in the lamp base 1, roll up. In addition, the support strut 2 can be pulled out to extend. This is represented by the double arrow in FIG. The angle of the support strut 2 against the horizontal is variable by the user, as indicated in Fig. 1 by the dashed double arrow.
  • Fig. 9 shows various alternative band configurations of two and more bands 4 of arcuate cross section to form the support strut 2.
  • the band configuration "back-to-back" shown in the previous embodiment is not mandatory can be taken from the figure, as the "back-to-back" configuration of FIG. 5 can be further developed for configurations with three or four bands 4, in which the bands 4 are in turn at least at one point mechanically connected to at least one adjacent band 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention concerne un luminaire (100) présentant un socle de luminaire (1), une tige-support (2) qui est maintenue longitudinalement par le socle de luminaire (1) et dont la longueur peut varier, et un moyen d'éclairage (3) fixé sur la tige-support (2).
EP10719290.8A 2010-04-16 2010-04-16 Luminaire présentant une tige-support de longueur variable pour un moyen d'éclairage Active EP2558771B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2010/055064 WO2011127986A1 (fr) 2010-04-16 2010-04-16 Luminaire présentant une tige-support de longueur variable pour un moyen d'éclairage

Publications (2)

Publication Number Publication Date
EP2558771A1 true EP2558771A1 (fr) 2013-02-20
EP2558771B1 EP2558771B1 (fr) 2014-09-17

Family

ID=43216407

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10719290.8A Active EP2558771B1 (fr) 2010-04-16 2010-04-16 Luminaire présentant une tige-support de longueur variable pour un moyen d'éclairage

Country Status (4)

Country Link
US (1) US9273837B2 (fr)
EP (1) EP2558771B1 (fr)
CN (1) CN103189682B (fr)
WO (1) WO2011127986A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102012100487A1 (de) * 2012-01-20 2013-07-25 Nopper Design UG (haftungsbeschränkt) Faltbares Konstruktionselement für mechanisch belastbare, zusammenlegbare konstruktive Anordnungen
US10520132B2 (en) 2016-11-08 2019-12-31 River Front Services, Inc. Deployable prop
WO2019199346A2 (fr) 2017-08-24 2019-10-17 River Front Services, Inc. Système détonant explosif et composants
US11543224B2 (en) 2017-08-24 2023-01-03 River Front Services, Inc. Explosive detonating system and components
US10947169B2 (en) 2018-06-29 2021-03-16 River Front Services, Inc. Deployable explosive charge structure
GB2613640A (en) * 2021-12-13 2023-06-14 Redwards Consultants Ltd Lamp assembly

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US4706172A (en) 1986-03-27 1987-11-10 Samuel Lebowitz Orientable lamp
IT1217683B (it) * 1988-05-20 1990-03-30 Artemide Spa Apparecchio per l'illuminazione artificiale a bracci snodati
US5001617A (en) * 1989-06-16 1991-03-19 Erik Chan Self-balanced, multiposition holder
IT1233330B (it) * 1989-09-19 1992-03-27 Paf Srl Lampada da tavolo.
US5169226A (en) * 1992-05-04 1992-12-08 Friedman Arthur S Portable desk light
DE29706090U1 (de) 1997-04-09 1997-05-22 Schoor Berthold Van Dr Ing Veränderbares bandförmiges Leuchtengestänge
DE20210215U1 (de) 2002-07-02 2003-06-12 Struppler Associates Design Gm Leuchte mit längenveränderbarer Tragstrebe bzw. -säule
GB2435507B (en) 2006-02-28 2008-02-27 Intech Plastics A lamp assembly
CN200961797Y (zh) * 2006-09-18 2007-10-17 王景华 一种智能型视力保护台灯
US7699492B2 (en) * 2006-12-08 2010-04-20 Levine Jonathan E Lighting device with clip
CN201034274Y (zh) * 2007-05-15 2008-03-12 欧展翔 二级调压的led台灯
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Also Published As

Publication number Publication date
WO2011127986A1 (fr) 2011-10-20
EP2558771B1 (fr) 2014-09-17
CN103189682B (zh) 2016-05-04
US9273837B2 (en) 2016-03-01
CN103189682A (zh) 2013-07-03
US20150092427A1 (en) 2015-04-02

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