US3133704A - Lighting fixture particularly suitable for fluorescent lamps - Google Patents

Lighting fixture particularly suitable for fluorescent lamps Download PDF

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Publication number
US3133704A
US3133704A US861518A US86151859A US3133704A US 3133704 A US3133704 A US 3133704A US 861518 A US861518 A US 861518A US 86151859 A US86151859 A US 86151859A US 3133704 A US3133704 A US 3133704A
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US
United States
Prior art keywords
body member
mounting plate
lug
lamp holder
aperture
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.)
Expired - Lifetime
Application number
US861518A
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English (en)
Inventor
Kampmann Heribert
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.)
US Philips Corp
North American Philips Co Inc
Original Assignee
US Philips Corp
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 US Philips Corp filed Critical US Philips Corp
Application granted granted Critical
Publication of US3133704A publication Critical patent/US3133704A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/0075—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources
    • F21V19/008—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources of straight tubular light sources, e.g. straight fluorescent tubes, soffit 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices

Definitions

  • the lighting fixture of the kind set forth is characterized, in accordance with the present invention, in that within the interior of the tubular support, in the proximity of one end thereof, a lug is arranged transversely to the longitudinal direction of the tube.
  • This lug mounted in recesses of the said. support, has both the body of one larnp holder and the mounting plate secured thereto.
  • Thesupport need be provided with only a few recesses to accommodate lugs such that they are not displaceable in the longitudinal direction of the fixture.
  • a second lug arranged transversely to the longitudinal direction of the support, may also be provided in the proximity of the other end of the said support.
  • This lug is likewise held in recesses of the tubular support and only the body of the lamp holder located near the said end of the tubular support is secured thereto.
  • part of the mounting plate which co-operates with the lug is bent at a right angle and provided with a tapped aperture to accommodate a fastening screw, which is supported by the body of the lamp holder.
  • the associated lug located between the body of the lamp holder and the bent-over part of the mounting plate, is provided with an aperture through which extends the fastening screw of the lamp holder.
  • a lug it is advantageous also to bend a lug to form reverse flanges on two opposite sides so that in the rims thus obtained accommodates the slot bent-over part of the mounting plate. Also, the plate may be correspondingly deformedto provide a tight joint between the lug and mounting plate.
  • the lug provided in the lighting fixture fitting sewing only for fasteningthe lamp holder is provided with a tapped aperture to accommodate a fastening screw for the adjacent body of the lamp holder.
  • the body of the lamp holder is provided with a strap, of which the bow is providedwith a bore through which I a screw lid 20.
  • the recesses of the tubular support provided to accommodate the lugs are constituted by local voids in ribs integral with the support and located in the interior of the said support.
  • this fixture can be rendered watertight in a simple manner.
  • each of the bodies of the lamp holders is provided with a groove within which fits the ends of the tubular support and in which a stufling ring is also arranged.
  • the fixture according to the invention is particularly suitable to be'provided, in a simple manner, With means by which it can be equipped with suspension members, while the Water-tightness of the fixture is notadversely affected.
  • the tubular support is provided at one or more places, which are displaced in the longitudinal direction of the support relative to the mountingplate thereof, with a pair of opposite apertures,,which accommodate a sleeve structure.
  • the interior of the sleeve structure is closed in a liquid-tight manner from the interior of the tubular support; this sleeve structure comprises the means for fastening the fixture to suspension 7
  • the invention will be described more fully with reference to the drawing. q
  • FIG. 1 is a perspective cut-away view of a part of one embodimentof the fixture according to the invention, parts of the tubular body having been omitted for the sake of clarity, and onlyone body of a lamp holder is shown detached from the fixture.
  • FIG. 2 shows, in a similar manner, a further embodiment of the fixture according to the invention. 7
  • FIG. 3 is a sectional View of the tubular support, and the means to fasten the fixture to a suspension tube or to a ceiling. e e
  • FIG. 4 is aplan view of an-adjusting plate used in the structure shown in FIG. 3. I V
  • FIG. 5 is a longitudinal sectional view of a water-tight connection of a body of a lamp holder to a' tubular support.
  • the fixture comprises a hollow body member or tubular support 1, which is closed at both ends by a body 2 of a lamp holder 3. Viewed in the direction of length, FIG. 1 shows only part of the tubular support 1 and only one body of a lamp holder.
  • a mounting plate 4 with the series or lamp circuit apparatus 5, 6 and 7, for driving the fluorescent lamp to be attached to the fixture.
  • the end 8 of the mounting plate 4 is bent at right angles and has an aperture 9, provided with screwthread.
  • V I I Opposite sides of the tubular support 1.
  • ribs 10 and 11 which have slots or recesses 12 and 13 inthe proximity of the ends of the tubular support.
  • a lug 14 which has an aperture 15.
  • the body 2 of the lamp holder is secured to a strap 16.
  • the how 17 of this strap is provided with an aperture through which a screw 18 projects.
  • an aperture 19 is provided in the body '2 of the lamp holder; this aperture can be closed withtheaid of At the other end of the tubular support 1 (not shown in FIG. 1) the local lug itself may be provided with a tapped aperture.
  • the mounting plate 4 is materially shorter than the tubular support 1.
  • the mounting plate 4 may have, for example, a length of 20 cms.
  • the tubular support 1 may have a length of, for example, 1 m. or 1.50 ms., or be five times as long.
  • the present invention has for its object to provide, without using long rods, a possibility of fastening the said, comparatively short mounting plate 4 in the comparatively long tubular support in a reliable and simple manner.
  • the series apparatus 5, 6 and 7 are first secured to the mounting plate 4. Then this mounting plate is introduced into the tubular support, after which the lug 14 is arranged in the associated slots 12 and 13 and the body 2 of the lamp holder 3 is positioned against the end of tubular support 1.
  • the strap 16 and the screw 18 are located in the interior of the said support.
  • the screw 18 With the aid of a screw driver, inserted through the aperture 19 in the body 2 of the lamp holder, the screw 18 can be fastened, via the bore 15 in the lug 14, in the tapped aperture 9. Consequently, the screw 18 has two functions: it fastens the mounting plate 4 in the support 1 and, in addition,tl1e body of the lamp holder to the tubular support.
  • the fixture After the aperture 19 has been closed with the aid of the screw lid 20 or else after the current supply wires have been inserted through the aperture 19, which is to this end provided with a stufling box, and after the body (not shown) of the other lamp holder has been fastened to the other end of the tubular support, the fixture is ready for shipment or use. It will be obvious that the mounting plate 4 of the fixture according to the invention is secured only to one of the bodies of the lamp holders.
  • the ribs 21 and 22 are not provided on the side walls of the tubular support 23, but only on the bottom wall thereof.
  • the lug 26, arranged in the slots 24 and 25, is bent over in a U-shaped manner at its upright sides to form reverse flanges 27, 28 and is also provided with a recess 29, through which the current supply wires 30 can be introduced.
  • the lug 26 is slipped onto the bent-over end 31 of the mounting plate 32. To this end the said plate has rim parts 33 and 34. Then the mounting plate 32 is introduced into the tubular support to an extent such that the lug 26 can be placed in the slots 24 and 25. Otherwise the structure is substantially identical to that shown in FIG. 1.
  • the tubular support 1 is provided, in order to fasten the fixture to a ceiling or a wall, with a pair of opposite apertures at one or more places. Between each pair of these apertures a sleeve 35 is arranged so that the head surfaces of this sleeve coincide with the interior surfaces of the tubular support.
  • a sleeve 35 is arranged in each of these sleeves so that the head surfaces of this sleeve coincide with the interior surfaces of the tubular support.
  • two sockets 36 and 37 In each of these sleeves are arranged two sockets 36 and 37.
  • the lowermost socket 36 is provided on the inner side with screwthread 38, whereas the topmost socket 37 has corresponding screwthread 39 on the outer side.
  • FIG. 3 shows the situation in which the sockets 36 and 37 have not yet been jointed by screwing.
  • the interior of the tubular support has a channel which is hermetically closed with respect to the interior of the support.
  • the screw for fastening the fixture to the ceiling is introduced through the aperture 44 into the said channel and bears with its head surface on the lower side of the cylindrical part of the socket 37.
  • an adjusting plate 47 may be used between the bottom side of the socket 37 and the supponting surface of the screw head; as is shown in FIG. 4, this plate has an elongated opening 46.
  • This construction may be used very successfully, since the tubular support, apart from the mounting plate, does not comprise parts, which would render it diflicult to provide a bore and the associated stufling means.
  • the current supply wires, if any, can be readily introduced through the intermediate spaces between the sleeve 35 and the upright walls of the support.
  • FIG. 5 shows how the bodies of the lamp holders can be secured in a liquid-tight manner to the tubular support.
  • a groove 52 is provided in which a stufling ring 58 is arranged.
  • the width of the said groove is chosen so that it accommodates not only the tubular support 53 but also a layer 54 of synthetic substance applied thereto by shrinking.
  • the outer edge 56 of the groove 52 has a slightly conical shape.
  • a lighting fiixture for fluorescent lamps comprising a seamless hollow body member, lamp holder means closing the ends of said body member, means integral with said body member defining a transverse recess within said body member, lug means supported within said recess by the said means integral with the body member, said lug means having an aperture, a mounting plate within said body member having circuit elements for said lamp and means passing through said aperture joining said lug means to secure both said mounting plate and at least one said lamp holder to said body member, a second lug arranged transversely to the longitudinal axis of said body member at the other end thereof, said lug supported in a recess, said recess being defined by means integral with said body member and means to secure the body of a second lamp holder means to said second lug.
  • a lighting fixture for fluorescent lamps comprising a seamless hollow body member, lamp holder means closing the ends of said body member, means integral with said body member defining a transverse recess within said body member, lug means supported with said recess by the said means integral with the body member, said lug means having an aperture, a mounting plate within said body member having circuit elements for said lamp and means passing through said aperture joining said lug means to secure both said mounting plate and at least one said lamp holder means to said body member, the portion of said mounting plate joined with said lug having a right angled bend, a tapped aperture in said right angled bend, a screw means extending through said apertured lug and received in said tapped aperture securing both said mounting plate and said lamp holder means to said lug located between the lamp holder means and the right angled bend of the mounting plate.
  • said lamp holders means comprises a strap aflixed to a lamp holded body, said strap including a bow provided with a bore receiving a screw fastening said lamp holder body to the lug.
  • a lighting fixture for fluorescent lamps comprising a seamless hollow body member, lamp holder means closing the ends of said body member, means integral with said body member defining a transverse recess within said body member, lug means having an aperture and supported in said recess by said means defining the recess, a mounting plate within said body member having circuit elements for said lamp and means joining said lug means to secure both the mounting plate and at least one said lamp holder to said body member.
  • a fluorescent lamp fixture comprising a tubular body member, discrete lamp holder means having a portion overlying the ends of said body member and a depending portion adapted to hold a lamp, and means providing a sealed connection between said lamp holders and tubular body member, means securing the lamp holder means to said body member, a mounting plate having circuit elements secured thereon enclosed within said body member, and means securing said mounting plate within said body member.
  • a fluorescent lamp fixture comprising a tubular body member, discrete lamp holder means at the ends of said body member, and means to provide a sealed connection between said lamp holder means and said body member, a mounting plate having circuit elements secured thereon enclosed within said body member, means securing said lamp holder means and mounting plate to the interior of said body member, and means for fastening said fixture to a suspension device including at least one aperture through said body member, a sleeve means, and means forming a seal between said aperture and said sleeve means whereby the interior of said body member is hermetically sealed from ambient conditions.
  • a lighting fixture for a fluorescent lamp comprising a tubular body member, lamp holder means at each end of said body member, said lamp holder means having a first portion for capping off each end of said body member and a second portion depending from said first portion for supporting said lamp in spaced parallel relation with said body member, a mounting plate having circuit elements for said lamp mounted thereon enclosed within said body member, and a single means within said body member for removably securing both said mounting plate and a lamp holder with said body member.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
US861518A 1958-12-23 1959-12-23 Lighting fixture particularly suitable for fluorescent lamps Expired - Lifetime US3133704A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK36565A DE1093014B (de) 1958-12-23 1958-12-23 Leuchte fuer langgestreckte Entladungslampen, insbesondere fuer Leuchtstoffroehren

Publications (1)

Publication Number Publication Date
US3133704A true US3133704A (en) 1964-05-19

Family

ID=7220728

Family Applications (1)

Application Number Title Priority Date Filing Date
US861518A Expired - Lifetime US3133704A (en) 1958-12-23 1959-12-23 Lighting fixture particularly suitable for fluorescent lamps

Country Status (6)

Country Link
US (1) US3133704A (de)
CH (1) CH377446A (de)
DE (1) DE1093014B (de)
FR (1) FR1243296A (de)
GB (1) GB916915A (de)
NL (1) NL246607A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5816837A (en) * 1995-08-16 1998-10-06 Brokelmann, Jaeger & Busse, Gmbh & Co. Fluorescent-lamp socket assembly
WO2002010641A1 (fr) * 2000-08-02 2002-02-07 Rena S.A. Galerie d'eclairage pour enceinte contenant un milieu humide

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3813241C2 (de) * 1988-04-20 1994-02-03 Thorn Licht Gmbh Freistrahlende Leuchte mit einer stabförmigen Leuchtstofflampe

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1469034A (en) * 1919-12-19 1923-09-25 Benjam Electric Mfg Company Electric-lighting device
US2339244A (en) * 1940-04-11 1944-01-18 Maxwell M Bilofsky Hot vapor lamp equipment
US2446425A (en) * 1945-09-14 1948-08-03 A L Smith Iron Company Fluorescent lighting fixture
US2544781A (en) * 1945-12-22 1951-03-13 Leroy C Doane Shock resistant luminaire for use with fluorescent tubes
US2560877A (en) * 1947-01-03 1951-07-17 Garden City Plating & Mfg Co Telescoping socket for fluorescent light tubes
US2571881A (en) * 1946-12-16 1951-10-16 Peter J Franklin Socket for starter units for fluorescent lamps
US2574019A (en) * 1948-11-29 1951-11-06 Jr William P Crockett Lighting fixture for elongated tubular lamps

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1721808U (de) * 1952-05-09 1956-05-09 Hoppmann & Mulsow Anordnung von vorzugsweise wasserdichten leuchtstofflampenleuchten, insbesondere aus isolierstoff und zubehoergeraeten.
DE957060C (de) * 1954-02-16 1957-01-31 Licentia Gmbh Leuchte fuer roehrenfoermige Leuchtstofflampen
DE1720554U (de) * 1955-02-17 1956-04-19 Siemens Ag Leuchte, insbesondere fuer leuchtstofflampen.
DE1728498U (de) * 1955-08-02 1956-08-23 Lenze K G Lichttechnische Spez Abgedichtete leuchte fuer leuchtstofflampen aus kunststoff.
DE1718650U (de) * 1955-11-09 1956-03-15 Walter G W Staecker Wasserdichter einbau kasten fuer vorschaltgeraete an leuchtstoff lampenleuchten.
DE1753719U (de) * 1956-07-12 1957-10-10 Licentia Gmbh Leuchte fuer leuchtstofflampen, insbesondere einheitsleuchte.
DE1733788U (de) * 1956-09-03 1956-11-15 Nova Lux Ges Inh Brandenburg & Korrosionsgeschuezte leuchte.
DE1733789U (de) * 1956-09-03 1956-11-15 Nova Lux Ges Inh Brandenburg & Korrosionsgeschuetzte langfeldleuchte.
DE1751296U (de) * 1957-02-18 1957-08-29 Licentia Gmbh Beruehrungsschutz fuer vorschaltgeraete und anschlussteile in leuchten mit roehrenfoermigen lampen.
DE1752417U (de) * 1957-03-11 1957-09-19 Licentia Gmbh Deckeneinbauleuchte.
DE1756792U (de) * 1957-09-24 1957-11-28 Schanzenbach & Co Gmbh Leuchte fuer leuchtstofflampen, insbesondere fuer feuchte und staubhaltige raeume
DE1708336A1 (de) * 1966-11-29 1970-08-27 Liogier Ets Regelvorrichtung fuer Tuerschliesser

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1469034A (en) * 1919-12-19 1923-09-25 Benjam Electric Mfg Company Electric-lighting device
US2339244A (en) * 1940-04-11 1944-01-18 Maxwell M Bilofsky Hot vapor lamp equipment
US2446425A (en) * 1945-09-14 1948-08-03 A L Smith Iron Company Fluorescent lighting fixture
US2544781A (en) * 1945-12-22 1951-03-13 Leroy C Doane Shock resistant luminaire for use with fluorescent tubes
US2571881A (en) * 1946-12-16 1951-10-16 Peter J Franklin Socket for starter units for fluorescent lamps
US2560877A (en) * 1947-01-03 1951-07-17 Garden City Plating & Mfg Co Telescoping socket for fluorescent light tubes
US2574019A (en) * 1948-11-29 1951-11-06 Jr William P Crockett Lighting fixture for elongated tubular lamps

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5816837A (en) * 1995-08-16 1998-10-06 Brokelmann, Jaeger & Busse, Gmbh & Co. Fluorescent-lamp socket assembly
WO2002010641A1 (fr) * 2000-08-02 2002-02-07 Rena S.A. Galerie d'eclairage pour enceinte contenant un milieu humide
FR2812713A1 (fr) * 2000-08-02 2002-02-08 Rena Sa Galerie d'eclairage pour enceinte contenant un milieu humide
US20040022059A1 (en) * 2000-08-02 2004-02-05 Jacques Chauquet Illuminating fixture for enclosed space containing a humid environment
JP2004505424A (ja) * 2000-08-02 2004-02-19 ルナ　ソシエテ　アノニム 高湿環境を包含する閉じた空間用照明取付具
US6877874B2 (en) 2000-08-02 2005-04-12 Rena S.A. Illuminating fixture for enclosed space containing a humid environment

Also Published As

Publication number Publication date
CH377446A (de) 1964-05-15
NL246607A (de)
DE1093014B (de) 1960-11-17
FR1243296A (fr) 1960-10-07
GB916915A (en) 1963-01-30

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