EP0033287B1 - Sicherheitsfassung für eine röhrenförmige Lampe mit axialen Endkappen - Google Patents

Sicherheitsfassung für eine röhrenförmige Lampe mit axialen Endkappen Download PDF

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Publication number
EP0033287B1
EP0033287B1 EP81400135A EP81400135A EP0033287B1 EP 0033287 B1 EP0033287 B1 EP 0033287B1 EP 81400135 A EP81400135 A EP 81400135A EP 81400135 A EP81400135 A EP 81400135A EP 0033287 B1 EP0033287 B1 EP 0033287B1
Authority
EP
European Patent Office
Prior art keywords
lamp
safety socket
mount
base
socket according
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
Application number
EP81400135A
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English (en)
French (fr)
Other versions
EP0033287A1 (de
Inventor
Maurice Liesse
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.)
Girard Sudron & Cie Sa
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Girard Sudron & Cie Sa
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Filing date
Publication date
Application filed by Girard Sudron & Cie Sa filed Critical Girard Sudron & Cie Sa
Priority to AT81400135T priority Critical patent/ATE7552T1/de
Publication of EP0033287A1 publication Critical patent/EP0033287A1/de
Application granted granted Critical
Publication of EP0033287B1 publication Critical patent/EP0033287B1/de
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/05—Two-pole devices
    • H01R33/06—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other
    • H01R33/08—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp
    • H01R33/0836—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp characterised by the lamp holding means
    • H01R33/0845—Two-pole devices with two current-carrying pins, blades or analogous contacts, having their axes parallel to each other for supporting tubular fluorescent lamp characterised by the lamp holding means with axially resilient member

Definitions

  • the present invention relates to sockets intended to support and energize, a tubular lamp with axial caps, of the incandescent type.
  • Known sockets of the above kind arranged to exert an axial thrust on the lamp bases so that the latter is held by pinching between the sockets; in general, the means exerting such a clamping effect are constituted by springs simultaneously ensuring an electrical connection with a supply circuit.
  • Patent US-A 2,447,676 (Bryant Electric Company) issued on August 24, 1948 teaches a socket comprising a hollow monobloc support with an opening forming an end-of-travel stop at an insulating piston plate.
  • a spring arranged in the hollow support has the function of pressing on an inner face of the piston plate a contact disc placed opposite an opening formed in the piston plate for the passage of a lamp contact; the spring also has another function which is to establish an electrical connection with a contact blade.
  • one end of the lamp is first engaged in a support, then after compression of the spring, the other end can be engaged in another support suitably spaced from the previous one.
  • Patent US-A 2656521 (Silvania Electric Products) issued on October 20, 1953 teaches a support for fluorescent tube, whose provisions are very similar to US-A 2,447,676 with the difference that the contact piece - whose role is similar to that of the piston plate of the aforementioned patent - is here, protruding with respect to the hollow cylindrical element.
  • the present invention relates to a socket of simple production, and whose configuration prevents the operator from having access to the lamp bases, as well as to the electric current supply pads, so that the operator can act safely even if the electric current supplies are live.
  • a safety socket for a tubular lamp with axial caps comprising elastic means disposed between the lamp base and a base, these means being adapted to hold the lamp by a pinching effect exerted axially on the caps, as well as suitable means to be connected to an electrical supply circuit, is characterized in that it comprises a cap comprising two parts assembled by telescopic mounting, hereinafter called for convenience case and sleeve, said case being provided removably nestable in a base , said cap housing elastic means, while means associated with both the cap and the base are adapted to establish an electrical connection with a supply circuit.
  • a safety socket according to the invention comprises a cap indicated generally at 9 comprising a first part 10 forming a housing with a second part 11 forming a sleeve, these two parts being assembled by telescopic mounting and at spacing by elastic means constituted by the occurrence by a spacer spring 13; the socket also includes a base 14 intended to be fixed to any support schematically shown in 15.
  • the sleeve 11 of the cap has in the exemplary embodiment shown, without limitation, a generally tubular shape with quadrangular section with open ends and it is adapted to be engaged in the housing 10 without significant play; the sleeve 11 advantageously comprises on its inner faces of the longitudinal ribs 20 serving to guide the base 21 of the lamp 22, it will be noted that this part of the cap could be devoid of such ribs so that this part 11, depending on whether it has ribs or not, can receive a lamp with bases of different diameters.
  • the ribs 20 extend locally inside the sleeve 11 by having a truncated end 20A, intended to form a stop for the lamp 22.
  • this sleeve On the opposite side where the sleeve 11 receives the lamp, this sleeve has, on each side, a notch 25 intended to form recesses to allow the insertion of the spring 13 inside said sleeve 11, so that a end of this spacer spring 13 rests on the bottoms 25A of the notches 25.
  • the sleeve 11 On one side, the sleeve 11 has a longitudinal opening 26, the usefulness of which will appear later.
  • the housing 10 of the cap has the appearance of a tubular element closed at one end by a bottom 28, the other end being open to allow engagement of the sleeve 11.
  • the housing 10 has a lower face or base 29, and an upper face 30; in the lower face is made a hole 31, while the upper face has projecting sides and a gripping means 32 intended to be projecting relative to the base 14; it will be noted that the aforementioned gripping means is located between two support planes 33, 34, (see also fig. 8) whose usefulness will appear later.
  • a longitudinal slot 35 is provided to allow the passage of a first electrical connection element indicated generally at 36.
  • Such a first electrical connection element is in the form of a blade 36 having a flat section 36A extended by a heel 36B with a return 36C; the planar section 36A being intended to be pressed by the aforementioned spring 13, on the bottom 28 of the housing 10, while the heel 36B is shaped to project from the outside face of this bottom 28.
  • the sleeve 11 When the sleeve 11 is engaged in the housing 10, after the first contact element 36, the spacer spring 13, and an element capable of establishing an electrical connection between the end face of the lamp base and the aforementioned first contact element, such an element being, in the example shown constituted by a spring 12 coaxial with the spacer spring 13, the sleeve 11 is assembled by a sliding assembly to the housing 10 to form the cap 9; for this purpose, a rivet 40 is placed in the hole 31, the rod 40A of which is adapted to cooperate with the longitudinal slot 26 formed in the sleeve 11.
  • the cap 9 thus formed is intended to be associated with a lamp base, (for the sleeve 11 of the cap) and in the base 14 (by the housing 10 of the cap); this base comprises a base 50 with holes for fixing 52 to a support, which base is bordered by sides extending vertically respectively lateral 53, 54, and bottom 55.
  • a cavity 57 adapted to receive a second contact element constituted by a pad 58; the bottom of this cavity has a hole 59 provided to allow the passage of a conductor 80.
  • the cavity 57 is able to allow the setting of the pad 58 which comprises a screw 58A accessible from the inside of the base, this screw ensuring the connection of the conductor 80 to said pad 58.
  • the bottom side 55 has at its free upper edge a central notch 65 on either side of which ears 66, 67 are respectively formed.
  • each base 21 of a lamp 22, is equipped with a cap 9, as described above, and the caps are each engaged in a base 14 fixed to any support, such as a strip 15, this the latter is however not essential, the bases 14 can be fixed directly on a support.
  • each contact pad 58 is connected with a conductor 80 connected to an electrical supply circuit, and that the electrical connection between these contact pads and the corresponding caps 21 of the lamp 22 is ensured through the blade 36 and the preferably conical contact spring 12, while the spacer springs 13 ensure the maintenance of the lamp by axial pinching because these are compressed when the caps 9 are inserted inside the bases 14.
  • the sleeves 11, housing 10, and base 14 being made of insulating moldable material, the bases 21 of the lamp are protected, at the same time as they are inaccessible to the operator, given that they are capped in their entirety by said caps.
  • the lamp 22 is engaged from the front between the bases.
  • each cap 9 exerts an axial pressure (arrows F) on each cap 9 so as to reduce, by compression of the spring 13, the length L to a length less than that L 'comprised between the bases, which has for simultaneous effect of bringing the free ends of the contact springs 12 to the end face of the caps 21; that said, the lamp can easily be engaged between the bases until the lower faces 29 of the housings 10 come into abutment on the bases 50 of the bases 14.
  • the pressure can be released if this has not been done during insertion, the release of the pressure on the housings 10 of the caps having the effect of releasing the spacer springs 13 and ensuring contact of the heels 36B with the studs 58. Simultaneously the lamp is held between the bases 14 under the effect of the spacer springs 13. Note that the heels 36B are applied to the studs 58 by the action of the spacer springs 13, thereby establishing the electrical connection, and this, at the very end of fitting the caps into the bases.
  • the lamp is tilted around a pivot axis XX (see also fig. 8) formed by the cooperation of the support planes 33, 34, formed in the housing 10 of the cap, with the edges free ears 66, 67, formed in the base.
  • the lamp is presented inclined with respect to the bases 14 and any of the caps are inserted into a base; a push is then exerted (arrow F1) on the free cap at the same time as it is inserted into its corresponding base; we note that the heels 36B thus inserted provide no electrical connection with the circuit as long as the caps 9 are not brought into abutment in their respective bases.
  • a clearance J is formed between the bottom wall 28 of the housing 10 of the cap and the bottom side 55 of the base; such a clearance being obtained by the cooperation of the heel 36B with the stud 58 so that one is assured of a good electrical connection at the contacts.
  • the pad 58 is confined in a cavity while being set back with respect to the internal face of the bottom side 25 of the base so that this pad is also almost inaccessible even when the cap 9 is removed.
  • the invention is not limited to the embodiment chosen and shown, which is on the contrary subject to modifications without departing from the scope of the invention, this is how the contact elements could have a configuration. different and be arranged in another location, which will in any event be as distant as possible from the hinge axis XX, the pad 58 being provided set back from a cavity which receives it.
  • the cap and the base could have a different section from that shown, for example circular or other, without the general provisions of the parties in question being significantly modified.

Landscapes

  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Buffer Packaging (AREA)

Claims (14)

1. Sicherheitsfassung für röhrenförmige Lampen mit axialen Sockeln, welche zwischen einem Sockel (21) der Lampe und einem Fassungsteil (14) angeordnete elastische Vorrichtungen (13) aufweist, welche dazu dienen, die Lampe durch eine axial auf die Sockel ausgeübte Klemmwirkung zu halten, sowie Vorrichtungen (12, 36), die mit einem elektrischen Kreis verbunden werden können, aufweist, dadurch gekennzeichnet, daß sie eine Kappe (9) aufweist, welche zwei teleskopartig zusammengebaute Teile (10, 11) aufweist, die hiernach der Einfachheit halber als Hülse (10) und Manschette (11) bezeichnet sind, wobei die Hülse (10) herausnehmbar in einen Fassungsteil (14) einsetzbar ist und die Kappe als Sitz für elastische Vorrichtungen dient, während sowohl mit der Kappe (9) als auch mit dem Fassungsteil (14) zusammenwirkende Vorrichtungen (12,36) dazu dienen, eine elektrische Verbindung mit einem Speisestromkreis herzustellen.
2. Sicherheitsfassung nach Anspruch 1, dadurch gekennzeichnet, daß eine Kappe (9) zum Aufsetzen auf jeden Sockel der Lampe vorgesehen ist und daß die elektrische Verbindung mit einem Speisestromkreis hergestellt wird, wenn jede Kappe (9) bis zum Boden in ihren Fassungsteil (14) eingesetzt ist.
3. Sicherheitsfassung nach Anspruch 2, dadurch gekennzeichnet, daß die Manschette (11) aus isolierendem Material so ausgebildet ist, daß sie den Sockel (21) der Lampe (22) umgibt und mit einem Ende mit einem Endabschnitt der Lampe (22) zusammenwirkt und mit ihrem anderen Ende mit einer Abstandshaltefeder (13) zusammenwirkt, die in einem Sitz eingeschlossen ist, der zwischen einer Endfläche der Manschette (11) und einer senkrechten Bodenwand (28) der Hülse gebildet ist.
4. Sicherheitsfassung nach einem der Ansprüche 2 und 3, dadurch gekennzeichnet, daß die Vorrichtungen zur elektrischen Verbindung zwischen einer Endfläche des Lampensockels und einem Speisestromkreis aus einer elastisch verformbaren Vorrichtung (12) bestehen, die im erwähnten Sitz eingeschlossen ist und außerhalb der Hülse eine Fahne aufweist, die mit einem mit dem Fassungsteil fest verbundenen Kontaktelement (58) zusammenwirken kann.
5. Sicherheitsfassung nach Anspruch 4, dadurch gekennzeichnet, daß die erwähnte elastisch verformbare Vorrichtung eine koaxial und innerhalb der Abstandshaltefeder (13) angeordnete Feder (12) ist, die mit einem Ende mit einer Endfläche eines Sockels (21) der Lampe (22) und mit einem anderen Ende mit einem Blatt (36) zusammenwirkt, daß sich im erwähnten Sitz erstreckt und außerhalb der Hülse eine Fahne (36B) aufweist.
6. Sicherheitsfassung nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, daß die Muffe (11) in der Hülse (10) zwischen zwei Endstellungen verschiebbar gehalten ist, wobei die Muffe (11) zu diesem Zweck ein Langloch (26) aufweist, das mit einem mit der Hülse (10) fest verbundenen Zapfen (40, 40A) zusammenwirkt.
7. Sicherheitsfassung nach Anspruch 2, dadurch gekennzeichnet, daß das Kontaktelement (58) im Fassungsteil ein mit dem Fassungsteil (14) fest verbundener Kontaktklotz ist, der in einem Hohlraum (57) eingeschlossen ist, der in der Bodenseite (55) des Fassungsteils in der Nähe einer zur Befestigung desselben an einem Träger dienenden Grundplatte (50) vorgesehen und so ausgebildet ist, daß der Kontaktklotz (58) im Hohlraum eingekeilt und bezüglich der Innenfläche der senkrechten Bodenseite (55) zurückgesetzt ist.
8. Sicherheitsfassung nach Anspruch 7, dadurch gekennzeichnet, daß der mit dem Fassungsteil (14) fest verbundene Kontaktklotz (58) eine Schraube aufnimmt, welche die Verbindung mit einem Leiter (80) gewährleistet.
9. Sicherheitsfassung nach einem der Ansprüche 7 oder 8, dadurch gekennzeichnet, daß der Kontaktklotz (58) mittels eines Kontaktblattes (36) einen Anschlag für die Manschette (10) in einer Endstellung ihres Verschiebungsweges bildet.
10. Sicherheitsfassung nach Anspruch 7, dadurch gekennzeichnet, daß ein freier oberer Rand der senkrechten Bodenseite (55) des Fassungsteils (14) eine Schwenkachse (X-X) für die Kappe (9) bildet.
11. Sicherheitsfassung nach Anspruch 10, dadurch gekennzeichnet, daß die erwähnte Schwenkachse (X-X) von zwei Nasen (66,67) gebildet wird, die beiderseits einer Aussparung (65) angeordnet sind, die im freien Endabschnitt der senkrechten Bodenseite (55) ausgebildet ist, wobei die Nasen so ausgebildet sind, daß sie mit Auflageflächen (33, 34) zusammenwirken, die beiderseits einer Greifeinrichtung (32) ausgebildet sind, welche eine obere Wand (30) der Hülse (10) fortsetzt.
12. Sicherheitsfassung nach einem der Ansprüche 2 bis 11, dadurch gekennzeichnet, daß die Manschette (11) innen Führungsrippen (20) für den Sockel (21) der Lampe (22) aufweist, wobei diese Führungsrippen mit einem Ende einen Anschlag für elastische Vorrichtungen (13) bilden und mit einem anderen Ende mit einem zum Anschluß dienenden Endabschnitt der Lampe (22) und eines Sockels (21) zusammenwirken können.
13. Sicherheitsfassung nach Anspruch 7, dadurch gekennzeichnet, daß der Fassungsteil (14) auf der einen und anderen Seite des erwähnten Hohlraums (57) Öffnungen (59, 60) für den Durchtritt eines Leiters (80) aufweist.
14. Sicherheitsfassung nach einem der Ansprüche 2 bis 13, dadurch gekennzeichnet, daß die Manschette (11) einen im wesentlichen quadratischen Querschnitt aufweist, ebenso wie die Hülse (10), in welche die Manschette mindestens teilweise mit einem zur Verschiebung gerade ausreichenden Spiel eingesetzt ist, während der Fassungsteil (14) einen Querschnitt entsprechend dem der Hülse mit einer Öffnung an zwei Seiten zum Einsetzen der Hülse aufweist.
EP81400135A 1980-01-29 1981-01-29 Sicherheitsfassung für eine röhrenförmige Lampe mit axialen Endkappen Expired EP0033287B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81400135T ATE7552T1 (de) 1980-01-29 1981-01-29 Sicherheitsfassung fuer eine roehrenfoermige lampe mit axialen endkappen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8001837A FR2474773A1 (fr) 1980-01-29 1980-01-29 Douille de securite pour lampe tubulaire a culots axiaux
FR8001837 1980-01-29

Publications (2)

Publication Number Publication Date
EP0033287A1 EP0033287A1 (de) 1981-08-05
EP0033287B1 true EP0033287B1 (de) 1984-05-16

Family

ID=9237975

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81400135A Expired EP0033287B1 (de) 1980-01-29 1981-01-29 Sicherheitsfassung für eine röhrenförmige Lampe mit axialen Endkappen

Country Status (6)

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EP (1) EP0033287B1 (de)
AT (1) ATE7552T1 (de)
AU (1) AU6672881A (de)
CA (1) CA1172324A (de)
DE (1) DE3163549D1 (de)
FR (1) FR2474773A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2698734B1 (fr) * 1992-10-20 1995-07-07 Liesse Maurice Eclairage a douilles gigognes de haute securite pour lampe tubulaire a culots axiaux.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2303156A (en) * 1941-04-23 1942-11-24 Gen Electric Lamp socket
US2447676A (en) * 1945-12-12 1948-08-24 Bryant Electric Co Electrical receptacle
GB607157A (en) * 1946-01-28 1948-08-26 Novobax Ltd Improvements in plugs for electrical connections of the pin-plug and socket type
US2656521A (en) * 1951-09-27 1953-10-20 Sylvania Electric Prod Fluorescent lamp holder
DE1170069B (de) * 1960-08-16 1964-05-14 Maehler & Kaege Ag Fassungspaar fuer mit Metallkappen versehene Glimmstart-Leuchtstofflampen mit Einstiftsockeln
DE1198931B (de) * 1963-10-25 1965-08-19 Vossloh Werke Gmbh Fassung fuer Leuchtstofflampen mit unsymmetrischer Lichtausstrahlung, deren Doppelkontaktsockel in zylindrische und axial verschiebbare Haltekolben der Fassung einsteckbar sind

Also Published As

Publication number Publication date
ATE7552T1 (de) 1984-06-15
EP0033287A1 (de) 1981-08-05
DE3163549D1 (en) 1984-06-20
FR2474773B1 (de) 1983-09-02
AU6672881A (en) 1981-08-06
FR2474773A1 (fr) 1981-07-31
CA1172324A (fr) 1984-08-07

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