US3903411A - Holder for detachably mounting a glass bowl of an electric lamp fixture - Google Patents

Holder for detachably mounting a glass bowl of an electric lamp fixture Download PDF

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Publication number
US3903411A
US3903411A US469916A US46991674A US3903411A US 3903411 A US3903411 A US 3903411A US 469916 A US469916 A US 469916A US 46991674 A US46991674 A US 46991674A US 3903411 A US3903411 A US 3903411A
Authority
US
United States
Prior art keywords
arms
glass bowl
cylindrical wall
bowl
actuating
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
US469916A
Other languages
English (en)
Inventor
Peter Klein
Gerd Schmidt
Franz Dusel
Max Erhardt
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.)
RUDOLF ZIMMERMANN KG
Original Assignee
RUDOLF ZIMMERMANN KG
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 RUDOLF ZIMMERMANN KG filed Critical RUDOLF ZIMMERMANN KG
Application granted granted Critical
Publication of US3903411A publication Critical patent/US3903411A/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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/162—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to traction or compression, e.g. coil springs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/44—Clasp, clip, support-clamp, or required component thereof
    • Y10T24/44291—Clasp, clip, support-clamp, or required component thereof including pivoted gripping member
    • Y10T24/44376—Spring or resiliently biased about pivot
    • Y10T24/44385—Distinct spring
    • Y10T24/44393—Attached solely by spring

Definitions

  • a holder for detachably mounting a glass, electric lamp bowl includes a cylindrical wall means on which an opening in the glass bowl is adapted to be received.
  • a plurality of tilting levers each having a clamping arm and an actuating arm are pivotally mounted on the cylindrical wall means and arranged to be actuated by the glass bowl during installation of the latter to clamp the glass bowl in place on the holder.
  • the tilting levers are actuated by the rim of the 'glass bowl only after the glass bowl has been substantially centered on the cylindrical wall means, thereby insuring that all of the tilting levers are actuated upon installation of the bowl.
  • This invention relates to holders for the detachable mounting of the all glass bowl of electric lamps, which have holding devices each designed as a rocking lever spring mechanism comprising a two armed lever one arm of which is adapted to engage under the edge of the rim of the bowl and press with spring action on the holder, such lever being designed as a two-armed angle lever at the bend of which a pivot arm is located on both sides which is mounted in a cut-out portion in the cylindrical wall of the holder between two lugs cut out of such wall and bent inwards parallel to one another wherein the actuating arm of the angle lever, pressed inwards upon mounting the bowl on the holder, en-
  • the invention is based on the problem of providing a holder for the detachable mounting of the all glass bowl of electric lamps in which, even in difficult cases of mounting, it is ensured that with the placing on of the bowl all angle levers are pivoted from their released position into their holding position.
  • the actuating arm prefferably bent substantially Z-shaped such that the free leg of the operating lever co-operating with the edge of the bowl upon positioning of the bowl comes into engagement with the cludes individual angle levers not being tilted into the holding position.
  • the middle portion and the free end portion of the actuating arm have a recess extending beyond the bend for the traction spring.
  • the traction spring may be capable of being connected advantageously in a groove on a projecting portion of the actuating arm whereby it engages through the aforesaid recess. This renders possible among other things a favourable construction of the tilting joint by arrangement of the groove on a suitable dimensioned projection of the clamping lever of the actuating arm.
  • the tilting angle lever is, for the damping of the striking action, pasted over with a strip of foamed material which however has the drawback that the adhesive coating under the influence of temperature of the lamps in operation dissolves and, especially with lamps in lengthy use, the strips of foamed material fall down. In addition such strips of foamed material are very much compressed due to the continuous pressure on the edge of the glass in the holding position of the tilting angle lever and thus lose their damping effect.
  • An improved device for the damping of the striking action can be achieved on a further construction of the invention in that in the clamping arm there is provided an aperture for the non-detachable fixing of a striking buffer made of temperature stable and elastic shape stable material formed like a push through button.
  • the device according to the invention may be formed advantageously such that glass bowls may also be used with larger neck openings as are practically constructionally provided.
  • the bottom edge of the holder on which the edge of the bowl is to be pressed should be bulged in the region of the positions of the tilting lever so that correspondingly larger sections may be provided and thus also the free end portions of the actuating arms of the angle levers may be formed longer in order in every case to ensure an engaging over of the edge of the bowl.
  • the height of the cylindrical wall of the holder must be suitably enlarged in order to be able to provide the large sections for the pivoting through of the actuating arms of the angle levers at the same time however thereby the holder would project correspondingly further into the bowl which is to be avoided since the holder must project as little as possible into the inside of the bowl.
  • FIG. 1 shows a partial section through a holder and one of its holding devices before engagement of the glass bowl
  • FIG. 2 shows a partial section corresponding to FIG. 1 after the tilting of the angle lever into the holding position to secure the glass bowl.
  • the all glass bowl for electric lamps shown has a circular holder 1 with a base 2, a cylindrical wall 3 and a base edge 4 and such glass bowl 5 has an inwardly bent edge part 6.
  • the edge part 6 of the bowl 5 has a cylindrical neck 7 which surrounds the cylindrical wall 3 of the holder 1 with ample clearance.
  • the cylindrical wall 3 has recesses 8 for accomodating actuating arm 9 of the respective twoarmed angle levers 10, this recess 8 extending beyond the junction between the wall and the base and a little way into the base 2 of the holder 1.
  • the clamping arm 14 of which serves for the clamping of the bowl 5 onto the base edge 4 of the holder 1 and can be displaced between vertically downwards extending position shown in FIG. 1 and the clamping position shown in FIG. 2. Stop lugs 15 bent out of the clamping arms 14 of the angle levers fix the angle levers 10 in the released position shown in FIG. 1.
  • the actuating arm 9 of the angle lever 10 is formed substantially Z-shaped with a free end portion 16, a centre portion 17 and a projecting portion 18 connected to the clamping arm 14.
  • the free end portion 16 and the centre portion 17 have a slot 19 extending beyond the connecting bend and through which the traction spring 20 can extend in the clamping position (FIG. 2), which traction spring is connected at one end to the base 2 of the holder 1 and is capable of being connected at its other end in a groove 21 of an extension 22 of the clamping lever portion 18.
  • the clamping arms 14 of the angle levers 10 striking buffers 24 which consist of a temperature stable and elastic shape stable material and are formed knob-like and inserted non-detachably through corresponding apertures 25 in the clamping arms 14 so that the sticking on of stop buffers on the clamping arms 14 hitherto provided can be dispensed with, which because of the considerable heating in operation practically unavoidably leads after a lengthy time to a destruction of the adhesive connection.
  • each of said tilting lever mechanisms pivotally mounted in each of said cutouts, spring means biasing said tilting lever mechanisms, each of said tilting lever mechanisms including a clamping arm and an actuating arm, each of said actuating arms and said clamping arms being pivotal between a first position and a second position, said spring means biasing said arms in said first and said second positions, each of said actuating arms in said first position extending outwardly from said cylindrical wall means at an elevated location above the bottom edge of said cylindrical wall means and being adapted to be actuated by the rim of the glass bowl as the latter is being installed to effect pivoting of each of said actuating arms and said clamping arms to said second position, each of said clamping arms having a substantially L-shaped configuration having a first leg operable to clampingly engage said glass bowl and a second leg having mounting means for mounting said spring means, said actuating arm extending laterally from said second leg of said clamping arm and projecting upwardly from said second leg when in said second position to thereby dispose each of said actuating arms
  • a holder according to claim 1 in which said cylindrical wall means includes a base edge on which the edges of the glass bowl are adapted to be pressed, said base edge having in the area thereof adjacent said cutouts an upwardly directed bulge.
  • a holder according to claim 1 wherein said actuating arm has a first leg extending from said clamping arm and a second leg extending transversely from said first leg.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Jigs For Machine Tools (AREA)
  • Clamps And Clips (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
US469916A 1973-05-19 1974-05-14 Holder for detachably mounting a glass bowl of an electric lamp fixture Expired - Lifetime US3903411A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2325588A DE2325588C3 (de) 1973-05-19 1973-05-19 Vorrichtung zur lösbaren Halterung der Schale von elektrischen Nurglasleuchten

Publications (1)

Publication Number Publication Date
US3903411A true US3903411A (en) 1975-09-02

Family

ID=5881541

Family Applications (1)

Application Number Title Priority Date Filing Date
US469916A Expired - Lifetime US3903411A (en) 1973-05-19 1974-05-14 Holder for detachably mounting a glass bowl of an electric lamp fixture

Country Status (13)

Country Link
US (1) US3903411A (en, 2012)
AT (1) AT343755B (en, 2012)
BE (1) BE814619A (en, 2012)
CH (1) CH564168A5 (en, 2012)
DE (1) DE2325588C3 (en, 2012)
DK (1) DK144539C (en, 2012)
FR (1) FR2229921B1 (en, 2012)
GB (1) GB1466374A (en, 2012)
IE (1) IE39460B1 (en, 2012)
IT (1) IT1012620B (en, 2012)
NL (1) NL159490B (en, 2012)
SE (1) SE390334B (en, 2012)
ZA (1) ZA742915B (en, 2012)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4967331A (en) * 1990-01-22 1990-10-30 Hector Rubin Holder for glass electric lamp dome
EP1278008A3 (de) * 2001-07-20 2005-09-21 Adelmann Lichtsysteme Gesellschaft für Licht mbH Leuchtengehäuse

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2887569A (en) * 1955-05-25 1959-05-19 Belmag Zurich Beleuchtungs U M Lamp bowl support
US3863306A (en) * 1972-04-13 1975-02-04 Rapid Sa Pivotable mounting clip

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1029474B (de) * 1955-05-25 1958-05-08 Belmag Zuerich Beleuchtungs U Vorrichtung zur loesbaren Halterung der Schale von elektrischen Nurglasleuchten
SE331008B (en, 2012) * 1968-02-19 1970-12-07 Metallverken Essem Plast Ab
FR2070545A5 (en, 2012) * 1969-12-09 1971-09-10 Breton Josiane
DE2044066C3 (de) * 1970-09-05 1974-11-21 Trilux-Lenze Kg, 5760 Neheimhuesten Kipphebelverschluß zur Verbindung eines aus Abdeckwanne und Leuchtengehäuseteil bestehenden Leuchtengehäuses

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2887569A (en) * 1955-05-25 1959-05-19 Belmag Zurich Beleuchtungs U M Lamp bowl support
US3863306A (en) * 1972-04-13 1975-02-04 Rapid Sa Pivotable mounting clip

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4967331A (en) * 1990-01-22 1990-10-30 Hector Rubin Holder for glass electric lamp dome
EP1278008A3 (de) * 2001-07-20 2005-09-21 Adelmann Lichtsysteme Gesellschaft für Licht mbH Leuchtengehäuse

Also Published As

Publication number Publication date
NL159490B (nl) 1979-02-15
IE39460L (en) 1974-11-19
FR2229921B1 (en, 2012) 1976-10-08
FR2229921A1 (en, 2012) 1974-12-13
DK144539B (da) 1982-03-22
IE39460B1 (en) 1978-10-11
BE814619A (fr) 1974-09-02
IT1012620B (it) 1977-03-10
GB1466374A (en) 1977-03-09
ZA742915B (en) 1975-05-28
NL7406554A (en, 2012) 1974-11-21
DK144539C (da) 1982-09-06
CH564168A5 (en, 2012) 1975-07-15
AT343755B (de) 1978-06-12
DE2325588B2 (de) 1975-12-11
SE390334B (sv) 1976-12-13
DE2325588C3 (de) 1983-12-29
ATA346874A (de) 1977-10-15
DE2325588A1 (de) 1974-11-28

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