EP1361394A2 - Basisteil für Leuchten mit einem elastischen Stück zur Befestigung der Lampenfassung und des Diffusers - Google Patents

Basisteil für Leuchten mit einem elastischen Stück zur Befestigung der Lampenfassung und des Diffusers Download PDF

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Publication number
EP1361394A2
EP1361394A2 EP03009376A EP03009376A EP1361394A2 EP 1361394 A2 EP1361394 A2 EP 1361394A2 EP 03009376 A EP03009376 A EP 03009376A EP 03009376 A EP03009376 A EP 03009376A EP 1361394 A2 EP1361394 A2 EP 1361394A2
Authority
EP
European Patent Office
Prior art keywords
elastic element
coupling
lamp socket
diffuser
base
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.)
Withdrawn
Application number
EP03009376A
Other languages
English (en)
French (fr)
Other versions
EP1361394A3 (de
Inventor
Angelo Vendrame
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.)
Minu Lamp Srl
Original Assignee
Minu Lamp Srl
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 Minu Lamp Srl filed Critical Minu Lamp Srl
Publication of EP1361394A2 publication Critical patent/EP1361394A2/de
Publication of EP1361394A3 publication Critical patent/EP1361394A3/de
Withdrawn legal-status Critical Current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
    • 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
    • F21V17/06—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages the fastening being onto or by the lampholder
    • 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
    • F21V19/0005—Fastening of light sources or lamp holders of sources having contact pins, wires or blades, e.g. pinch sealed lamp

Definitions

  • This patent pertains to bases for pendant light fittings, luminaires, ceiling lamps and other such devices, and particularly it concerns a new base with an elastic element for fixing the diffuser and the lamp socket.
  • Pendant light fittings, luminaires, ceiling lamps, etc. are fitted with a diffuser that is held in place by the structure of the pendant light fitting, luminaire or ceiling lamp, or by the base.
  • Bases that also hold the diffuser which generally have a ring-shaped raised rim on the outside, a thread and a fixing ring nut, are well known.
  • the diffuser is held and locked in place between the ring-shaped rim and the aforesaid ring nut screwed onto the base.
  • Such bases with screw-on ring nuts are used only for light bulbs with an Edison screw-type coupling and are unsuitable for light bulbs with a bayonet coupling because of the small dimensions of the base.
  • the diffuser is consequently held in place by the structure of the pendant light fitting, luminaire or ceiling lamp, by means of additional parts and screws.
  • Bases for bayonet cap bulbs are made of ceramic material and are attached to the base with screws that require the use of screwdrivers or other specific utensils.
  • fixing the diffuser by means of the screw-on ring nut has to be done with great care in order to ensure the diffuser is firmly locked in place without running the risk of damaging it.
  • One of the purposes of the new base is to enable a quick, safe attachment of the diffuser without using other parts and without the need for specific tools or utensils.
  • Another purpose of the new base is to enable the attachment of the lamp socket without the aid of specific tools or utensils.
  • Another purpose of the new base is to hold both the diffuser and the lamp socket with a single fixing element.
  • Another purpose of the new base is to simultaneously fix the diffuser and the lamp socket in place without the aid of specific tools or equipment.
  • the new base for light fittings comprising a coupling, a lamp socket and an elastic locking element.
  • the preferably cylindrical coupling has a ring-shaped groove on the outside with an opening communicating with the inside of the coupling.
  • Said opening is the same height as the ring-shaped groove and extends along the circumference of the groove over a length sufficient to enable access to the elastic element.
  • the cylindrical coupling contains the lamp socket comprising an element having a generically T-shaped cross section and complete with suitable holes and/or fastenings for inserting the bulb.
  • the elastic element is composed of a strip of flexible metal folded into a polygon, with one end folded back towards the inside of the polygon. One of the two edges of the elastic element is segmented and all its parts are bent towards the inside of the elastic element.
  • the lamp socket is inserted in the coupling, while the diffuser is attached to the outside of said coupling in line with the rim of the ring-shaped groove; the elastic element is attached to said ring-shaped groove with its folded end housed in the opening in the cylindrical coupling, so as to keep the diffuser in position and hold the lamp socket.
  • Figure 1 shows a side view of the new base (P)
  • Figure 2 is a horizontal cross section of the new base (P)
  • Figures 2a, 2b and 2c show the coupling (C), the lamp socket (S) and the elastic element (E).
  • Figure 3 shows an axonometric view of the elastic element (E).
  • Figure 4 is a vertical cross section of the new base (P) showing the lamp socket (S) and the diffuser (D).
  • the new base (P) comprises a cylindrical coupling (C), a lamp socket (S) and an elastic element (E).
  • the cylindrical coupling (C) has a generically tubular form having one open end (C1) for inserting the lamp socket (S) and the other end (C2) shaped to attach the new base (P) to the structure of the pendant light fitting, luminaire or ceiling lamp and to allow for the passage of the power supply wires (Sf).
  • the rim (Cb) formed between said ring-shaped groove (Cs) and the end (C1) where the lamp socket (S) is inserted has a narrower diameter than the rest of the cylindrical coupling (C) to allow for the insertion of the diffuser (D).
  • This opening (Ca) extends over the entire height of the groove (Cs) and over a length sufficient to allow for the insertion of the folded part (E1) of the elastic element (E).
  • the lamp socket (S) comprises an element, preferably made of ceramic or thermoplastic material, complete with the necessary bulb fastenings (S1).
  • the power supply wires (Sf) can be connected at the opposite end.
  • the lamp socket (S) is inserted in the cylindrical coupling (C) so that the bulb fastenings (S1) are facing towards the outside of the cylindrical coupling (C).
  • the elastic element (E) is composed of a strip of flexible metal, preferably harmonic steel, folded several times in order to create an open ring with a polygonal, e.g. hexagonal or pentagonal, cross section.
  • One of the ends (E1) of the elastic element (E) is folded towards the inside of the ring and one of the edges is segmented into several parts (E2) and each part (E2) is bent towards the inside of the ring formed by the elastic element (E).
  • This elastic element (E) is attached to the cylindrical coupling (C) so as to fit into the ring-shaped groove (Cs) and simultaneously retain both the diffuser (D) and the lamp socket (S).
  • the diffuser (D) has a hole (Df) whose diameter is wider than the bottom end (Cb), but narrower than the part (Cb) of the cylindrical coupling (C) at the opposite end.
  • the elastic element (E) fits into the groove (Cs) in the cylindrical coupling (C), on the inside of the diffuser (D), so that its folded end (E1) fits inside the opening (Ca) in the coupling (C) and holds the lamp socket (S) in such a manner that each part of its segmented edge (E2) rests against the rim (Cb) of the coupling (C).
  • the elastic element (E) fits inside the hole (Df) in the diffuser (D), pressing against the edge of said hole (Df) so as to exert sufficient friction to retain the diffuser (D).
  • the base (P) as described above offers numerous advantages and innovative features.
  • the new base (P) does not need screws or additional parts for fixing the diffuser (D) and/or lamp socket (S) in place.
  • the new base (P) does not need tools or utensils for fixing the diffuser (D) and/or lamp socket (S) in place.
  • the new base (P) enables the removal of the diffuser (D) without the aid of specific tools or utensils, simply by contracting the elastic element (E) and sliding out the diffuser (D).
  • the new base (P) enables the removal of the lamp socket (S), after removing the diffuser (D), without the aid of specific tools or utensils, simply by expanding the elastic element (E) and sliding the socket out of the cylindrical coupling (C).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
EP03009376A 2002-05-10 2003-04-25 Basisteil für Leuchten mit einem elastischen Stück zur Befestigung der Lampenfassung und des Diffusers Withdrawn EP1361394A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPD20020123 2002-05-10
ITPD20020123 ITPD20020123A1 (it) 2002-05-10 2002-05-10 Supporto per corpi illuminanti con elemento elastico di fissaggio delporta lampada e del diffusore

Publications (2)

Publication Number Publication Date
EP1361394A2 true EP1361394A2 (de) 2003-11-12
EP1361394A3 EP1361394A3 (de) 2006-10-11

Family

ID=29227563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03009376A Withdrawn EP1361394A3 (de) 2002-05-10 2003-04-25 Basisteil für Leuchten mit einem elastischen Stück zur Befestigung der Lampenfassung und des Diffusers

Country Status (2)

Country Link
EP (1) EP1361394A3 (de)
IT (1) ITPD20020123A1 (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE827934C (de) * 1948-11-07 1952-03-06 Ernst Rademacher Vorrichtung zur Verbindung von ringfoermigen Teilen, insbesondere an Beleuchtungskoerpern
DE19739053A1 (de) * 1997-09-05 1999-03-18 Murjahn Kg Vlm Vorrichtung zur Befestigung eines Leuchtenglases in oder an einer Leuchte

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE827934C (de) * 1948-11-07 1952-03-06 Ernst Rademacher Vorrichtung zur Verbindung von ringfoermigen Teilen, insbesondere an Beleuchtungskoerpern
DE19739053A1 (de) * 1997-09-05 1999-03-18 Murjahn Kg Vlm Vorrichtung zur Befestigung eines Leuchtenglases in oder an einer Leuchte

Also Published As

Publication number Publication date
EP1361394A3 (de) 2006-10-11
ITPD20020123A1 (it) 2003-11-10

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