EP0033287B1 - Security fitting for a tubular lamp with axial end caps - Google Patents

Security fitting for a tubular lamp with axial end caps 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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German (de)
French (fr)
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EP0033287A1 (en
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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Publication date
Application filed by Girard Sudron & Cie Sa filed Critical Girard Sudron & Cie Sa
Priority to AT81400135T priority Critical patent/ATE7552T1/en
Publication of EP0033287A1 publication Critical patent/EP0033287A1/en
Application granted granted Critical
Publication of EP0033287B1 publication Critical patent/EP0033287B1/en
Expired legal-status Critical Current

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    • 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)

Abstract

1. A safety socket for a tubular lamp having axially opposed bases, comprising elastic means (13) disposed between one base (21) of the lamp and a mount (14), these means being adapted to maintain the lamp by a clamping action exerted axially against the bases, and means (12, 36) capable of being connected to an electric supply circuit, characterized in that the safety socket comprises a cap (9) comprising two parts (10, 11) assembled together by telescopic mounting, hereinafter called for convenience sake casing (10) and sleeve (11) ; the said casing (10) being removably interfitted on a mount (14), the said cap accommodating elastic means, whilst means (12, 36) associated with the cap (9) and the mount (14) are adapted to establish an electrical connection with a supply circuit.

Description

La présente invention se rapporte aux douilles destinées à supporter et à mettre sous tension électrique, une lampe tubulaire à culots axiaux, du type à incandescence.The present invention relates to sockets intended to support and energize, a tubular lamp with axial caps, of the incandescent type.

On connait des douilles du genre ci-dessus aménagées pour exercer une poussée axiale sur les culots de la lampe en sorte que celle-ci est maintenue par pinçage entre les douilles; en général, les moyens exerçant un tel effet de pinçage sont constitués par des ressorts assurant simultanément une liaison électrique avec un circuit d'alimentation.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.

Le brevet US-A 2 447 676 (Bryant Electric Com- pany) délivré le 24 Août 1948 enseigne une douille comportant un support creux monobloc avec une ouverture formant une butée de fin de course à un plateau de piston isolant. Un ressort disposé dans le support creux a comme fonction de plaquer sur une face intérieure du plateau piston un disque de contact placé en regard d'une ouverture ménagée dans le plateau piston pour le passage d'un contact de la lampe; le ressort a aussi une autre fonction qui est d'établir une liaison électrique avec une lame de contact.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.

Une telle douille ne résoud pas les problèmes posés maintenant avec beaucoup de rigueur concernant la sécurité.Such a socket does not solve the problems posed now with great rigor regarding safety.

En effet, lors de la manipulation de la lampe on engage d'abord une extrémité de celle-ci dans un support, puis après compression du ressort, on peut engager l'autre extrémité dans un autre support convenablement espacé du précédent.In fact, when handling the lamp, 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.

Or pendant ces manipulations, après qu'une extrémité de la lampe ait été engagée dans un support, l'autre extrémité est largement accessible à l'opérateur, en sorte qu'il y a des risques que cette dernière constitue une amenée de courant, d'où il résulte des risques non négligeables d'accidents graves, voire mortels.Now during these manipulations, after one end of the lamp has been engaged in a support, the other end is widely accessible to the operator, so that there is a risk that the latter constitutes a current supply, whence results considerable risks of serious accidents, even fatal.

Le brevet US-A 2656521 (Silvania Electric Products) délivré le 20 Octobre 1953 enseigne un support pour tube fluorescent, dont les dispositions sont très voisines du brevet US-A 2 447 676 à la différence près que la pièce de contact - dont le rôle est similaire à celui du plateau-piston du brevet précité - est ici, saillante par rapport à l'élément cylindrique creux.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.

On fait donc, globalement, les mêmes remarques que ci-dessus en ce qui concerne la sécurité de la personne ayant à manipuler une lampe pour l'associer, ou l'ôter d'un tel support.We therefore make, overall, the same remarks as above with regard to the safety of the person having to handle a lamp to associate it, or remove it from such a support.

Il résulte des dispositions mentionnées ci-dessus que la configuration des douilles, laissent à la portée des mains de l'opérateur des éléments pouvant être sous tension électrique lors des manipulations de la lampe.It follows from the provisions mentioned above that the configuration of the sockets, leaves within the reach of the operator's hands elements which may be under electric voltage when handling the lamp.

La présente invention a pour objet une douille de réalisation simple, et dont la configuration interdit à l'opérateur d'avoir accès aux culots de la lampe, ainsi qu'aux plots d'amenée de courant électrique, en sorte que l'opérateur peut agir en toute sécurité même si les amenées de courant électrique sont sous tension.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.

Une douille de sécurité pour lampe tubulaire à culots axiaux, comportant des moyens élastiques disposés entre le culot de la lampe et un socle, ces moyens étant adaptés à maintenir la lampe par un effet de pinçage exercé axialement sur les culots, ainsi que des moyens aptes à être raccordés à un circuit d'alimentation électrique, se caractérise en ce qu'elle comprend un capuchon comprenant deux parties assemblées par montage télescopique, dites ci-après par commodité boîtier et manchon, ledit boîtier étant prévu emboîtable de manière amovible dans un socle, ledit capuchon logeant des moyens élastiques, tandis que des moyens associés tant au capuchon qu'au socle sont adaptés à établir une liaison électrique avec un circuit d'alimentation.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.

La sécurité est obtenue, avec une telle douille, du fait que les culots de lampe lors des manipulations sont totalement masqués par les capuchons, d'où inaccessibilité aux culots, et aussi par le fait que la liaison électrique de la lampe avec le circuit d'alimentation n'est établie qu'en fin d'emboîtement des capuchons dans les socles, en sorte que dans aucun cas les éléments de contact associés à chaque capuchon, ne peuvent être placés sous tension électrique tant qu'ils sont accessibles par l'opérateur.Safety is obtained, with such a socket, from the fact that the lamp caps during handling are completely masked by the caps, hence inaccessibility to the caps, and also by the fact that the electrical connection of the lamp with the circuit d 'power is only established at the end of fitting the caps in the bases, so that in no case the contact elements associated with each cap, can not be placed under electric voltage as long as they are accessible by the operator.

Une telle douille, outre sa simplicité de réalisation, donc d'un prix de revient modique, offre donc les garanties de sécurité requises.Such a socket, in addition to its simplicity of construction, therefore of a low cost price, therefore offers the required security guarantees.

D'autres caractéristiques et avantages de l'invention ressortiront d'ailleurs de la description qui va suivre donnée à titre d'exemple en référence aux dessins annexés dans lesquels, la

  • fig. 1 est une vue en perspective éclatée d'une douille de sécurité selon la présente invention, illustrant respectivement les deux parties du capuchon (manchon et boîtier) et le socle; la
  • fig. 2 est une vue en élévation longitudinale d'une lampe dont chaque culot est équipé d'une douille de sécurité selon l'invention, lesdites douilles étant montrées en coupe; la
  • fig. est une vue en élévation d'une lampe tubulaire à culots axiaux, dont les culots sont- équipés chacun d'un capuchon, la lampe ainsi équipée étant montrée avant mise en place dans les socles; la
  • fig. 4 illustre, en élévation et schématiquement, une phase de mise en place, ou d'extraction, d'une lampe équipée de ses capuchons, dans les socles eux-mêmes fixés sur un support quelconque; la
  • fig. 5 est une vue en coupe à échelle agrandie de la zone entourée à la fig. 4 et indiquée par V; la
  • fig.6 est une vue analogue à la fig.4 d'une variante de mise en place ou d'extraction d'une lampe équipée de ses capuchons dans les socles; la
  • fig. 7 est une vue à plus grande échelle de la partie entourée à la fig. 6, et indiquée par Vll; la
  • fig. 8 est une vue en perspective de la partie indiquée par VIII à la fig. 5 montrant en particulier l'articulation du capuchon sur le socle.
Other characteristics and advantages of the invention will also emerge from the description which follows, given by way of example with reference to the appended drawings in which the
  • fig. 1 is an exploded perspective view of a safety socket according to the present invention, respectively illustrating the two parts of the cap (sleeve and housing) and the base; the
  • fig. 2 is a longitudinal elevation view of a lamp, each base of which is fitted with a safety socket according to the invention, said sockets being shown in section; the
  • fig. is an elevational view of a tubular lamp with axial caps, the caps of which are each equipped with a cap, the lamp thus equipped being shown before being placed in the bases; the
  • fig. 4 illustrates, in elevation and schematically, a phase of placing, or extracting, a lamp equipped with its caps, in the bases themselves fixed on any support; the
  • fig. 5 is a sectional view on an enlarged scale of the area surrounded in FIG. 4 and indicated by V; the
  • fig.6 is a view similar to fig.4 of a variant of fitting or extracting a lamp equipped with its caps in the bases; the
  • fig. 7 is an enlarged view of the part surrounded in fig. 6, and indicated by Vll; the
  • fig. 8 is a perspective view of the part indicated by VIII in FIG. 5 showing in particular the articulation of the cap on the base.

Suivant la forme de réalisation choisie et représentée aux figures, en particulier à la fig. 1, une douille de sécurité selon l'invention comprend un capuchon indiqué globalement en 9 comprenant une première partie 10 formant boîtier à une seconde partie 11 formant manchon, ces deux parties étant assemblées par montage télescopique et à écartement par moyen élastique constitué en l'occurrence par un ressort d'écartement 13; la douille comprend aussi un socle 14 destiné à être fixé à un support quelconque schématiquement représenté en 15.According to the embodiment chosen and shown in the figures, in particular in FIG. 1, 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.

Le manchon 11 du capuchon présente dans l'exemple de réalisation illustré, non limitatif, une forme globalement tubulaire à section quadrangulaire avec des extrémités ouvertes et il est adapté à être engagé dans le boîtier 10 sans jeu notable; le manchon 11 comporte avantageusement sur ses faces intérieures des nervures longitudinales 20 servant à guider le culot 21 de la lampe 22, il sera noté que cette partie du capuchon pourrait être dépourvue de telles nervures de manière telle que cette partie 11, selon qu'elle comporte des nervures ou non, peut recevoir une lampe avec des culots de diamètres différents.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.

Les nervures 20 s'étendent localement à l'intérieur du manchon 11 en ayant une extrémité 20A tronquée, destinée à former une butée à la lampe 22.The ribs 20 extend locally inside the sleeve 11 by having a truncated end 20A, intended to form a stop for the lamp 22.

Du côté opposé où le manchon 11 reçoit la lampe, ce manchon comporte, sur chaque côté, une encoche 25 destinée à former des dégagements pour permettre l'insertion du ressort 13 à l'intérieur du dit manchon 11, de manière telle qu'une extrémité de ce ressort d'écartement 13 s'appuie sur les fonds 25A des encoches 25.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.

Sur une face, le manchon 11 comporte une ouverture longitudinale 26 dont l'utilité apparaîtra plus loin.On one side, the sleeve 11 has a longitudinal opening 26, the usefulness of which will appear later.

Quant au boîtier 10 du capuchon, il se présente sous l'aspect d'un élément tubulaire fermé à une extrémité par un fond 28, l'autre extrémité étant ouverte pour permettre l'engagement du manchon 11.As for the housing 10 of the cap, it 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.

Le boîtier 10 comporte une face inférieure ou embase 29, et une face supérieure 30; dans la face inférieure est pratiqué un trou 31, tandis que la face supérieure présente des côtés débordants et un moyen de préhension 32 destiné à être saillant par rapport au socle 14; il sera noté que le moyen de préhension précité est situé entre deux plans d'appui 33, 34, (voir aussi fig. 8) dont l'utilité apparaîtra plus loin. Sensiblement dans l'angle formé par le fond 28 et l'embase 29, une fente longitudinale 35 est ménagée pour permettre le passage d'un premier élément de liaison électrique indiqué globalement en 36.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. Significantly in the angle formed by the bottom 28 and the base 29, a longitudinal slot 35 is provided to allow the passage of a first electrical connection element indicated generally at 36.

Un tel premier élément de liaison électrique se présente sous la forme d'une lame 36 ayant un troncon plan 36A prolongé par un talon 36B avec un retour 36C; le tronçon plan 36A étant destiné à être plaqué par le ressort précité 13, sur le fond 28 du boîtier 10, tandis que le talon 36B est conformé pour être en saillie par rapport à la face extérieure de ce fond 28.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.

Lorsque le manchon 11 est engagé dans le boîtier 10, après mise en place du premier élément de contact 36, du ressort d'écartement 13, et d'un élément apte à établir une liaison électrique entre la face terminale du culot de la lampe et le premier élément de contact précité, un tel élément étant, dans l'exemple représenté constitué par un ressort 12 coaxial au ressort d'écartement 13 on assemble par un montage coulissant le manchon 11 au boîtier 10 pour former le capuchon 9; à cet effet, on met en place dans le trou 31 un rivet 40 dont la tige 40A est adaptée à coopérer avec la fente longitudinale 26 ménagée dans le manchon 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.

On réalise ainsi un ensemble formant le capuchon 9 dans lequel le manchon et le boîtier sont à montage télescopique, les différents éléments étant imperdables, et le manchon 11 étant maintenu à écartement du boîtier 10 par le ressort d'écartement 13.There is thus produced an assembly forming the cap 9 in which the sleeve and the housing are telescopically mounted, the various elements being captive, and the sleeve 11 being kept apart from the housing 10 by the spacer spring 13.

Le capuchon 9 ainsi constitué est destiné à être associé à un culot d'une lampe, (pour le manchon 11 du capuchon) et dans le socle 14 (par le boîtier 10 du capuchon); ce socle comprend une embase 50 avec trous de fixation 52 à un support, laquelle embase est bordée par des côtés s'étendant verticalement respectivement latéraux 53, 54, et de fond 55.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.

Dans l'angle formé par l'embase 50 et le côté vertical de fond 55 comportant un bossage extérieur 56, il est ménagé dans ce dernier, mais à l'intérieur du socle, une cavité 57 adaptée à recevoir un second élément de contact constitué par un plot 58; le fond de cette cavité comporte un trou 59 prévu pour permettre le passage d'un conducteur 80.In the angle formed by the base 50 and the vertical bottom side 55 comprising an external boss 56, there is formed in the latter, but inside the base, 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.

On remarquera au sujet du logement précité qu'il permet au plot 58 d'être en retrait par rapport à la surface intérieure de la paroi de fond 55 du socle, de manière telle que ce plot n'est pratiquement pas accessible.It will be noted with regard to the abovementioned housing that it allows the pad 58 to be set back relative to the inner surface of the bottom wall 55 of the base, so that this pad is practically not accessible.

La cavité 57 est apte à permettre le calage du plot 58 lequel comporte une vis 58A accessible par l'intérieur du socle, cette vis assurant la connexion du conducteur 80 audit plot 58.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.

On remarque que la vis 58A est pas en saillie par rapport au plot 58.It is noted that the screw 58A is not projecting relative to the pad 58.

Le côté de fond 55 comporte à son bord supérieur libre une échancrure centrale 65 de part et d'autre de laquelle sont formées des oreilles respectivement 66, 67.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.

A la fig. 2, chaque culot 21 d'une lampe 22, est équipé d'un capuchon 9, tel que décrit ci-dessus, et les capuchons sont engagés chacun dans un socle 14 fixé à un support quelconque, tel qu'une réglette 15, cette dernière n'étant toutefois pas indispensable, les socles 14 pouvant être fixés directement sur un support.In fig. 2, 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.

Sur cette figure on voit que chaque plot de contact 58 est connecté avec un conducteur 80 relié à un circuit d'alimentation électrique, et que la liaison électrique entre ces plots de contact et les culots correspondants 21 de la lampe 22 est assurée à travers la lame 36 et le ressort de contact préférentiellement conique 12, tandis que les ressorts d'écartement 13 assurent le maintien de la lampe par pincement axial du fait que ceux-ci se trouvent comprimés lors de l'insertion des capuchons 9 à l'intérieur des socles 14.In this figure we see that 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.

A la fig. 3, on voit clairement en effet, que la lampe 22 dont les culots sont équipés de capuchons 9 a une longueur totale L nettement supérieure à la dimension L' comprise entre les deux socles 14.In fig. 3, it can clearly be seen that the lamp 22, the caps of which are fitted with caps 9, has a total length L clearly greater than the dimension L ′ comprised between the two bases 14.

On notera qu'une telle disposition permet non seulement d'assurer le maintien de la lampe 22 entre les socles 14, mais aussi de permettre un bon contact entre les culots de la lampe et les plots 58.It will be noted that such an arrangement not only ensures that the lamp 22 is maintained between the bases 14, but also allows good contact between the lamp bases and the studs 58.

De plus, les manchons 11, boîtier 10, et socle 14, étant réalisés en matière moulable isolante, les culots 21 de la lampe sont protégés, en même temps qu'ils sont inaccessibles à l'opérateur, étant donné qu'ils sont coiffés dans leur intgera- lité par lesdits capuchons.In addition, 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.

S'agissant de mettre en place dans des socles convenablement espacés une lampe dont les culots sont équipés de capuchons tels que ci-dessus, deux possibilités sont offertes à l'opérateur.With regard to placing in a suitably spaced bases a lamp whose bases are fitted with caps as above, two possibilities are offered to the operator.

Selon une première possibilité (fig. 6 et 7), la lampe 22 est engagée de face entre les socles.According to a first possibility (FIGS. 6 and 7), the lamp 22 is engaged from the front between the bases.

Pour ce faire, l'opérateur exerce une pression axiale (flèches F) sur chaque capuchon 9 de manière à ramener, par compression du ressort 13, la longueur L à une longueur inférieure à celle L' comprise entre les socles, ce qui a pour effet simultané d'amener les extrémités libres des ressorts de contact 12 sur la face terminale des culots 21; cela étant, la lampe peut aisément être engagée entre les socles jusqu'à ce que les faces inférieures 29 des boîtiers 10 arrivent en butée sur les embases 50 des socles 14.To do this, the operator 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.

La pression peut être relâchée si cela n'a pas été fait pendant l'insertion, le relâchement de la pression sur les boîtier 10 des capuchons ayant pour effet de libérer les ressorts d'écartement 13 et d'assurer le contact des talons 36B avec les plots 58. Simultanément la lampe est maintenue entre les socles 14 sous l'effet des ressorts d'écartement 13. A noter que les talons 36B sont appliqués sur les plots 58 par l'action des ressorts d'écartement 13, établissant ainsi la connexion électrique, et ce, tout à fait en fin d'emboîtement des capuchons dans les socles.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.

On remarque que dès que le commencement de l'insertion de la lampe entre les socles 14, l'opérateur n'a plus aucune possibilité d'accès aux éléments pouvant être sous tension électrique; comme par ailleurs les culots de la lampe sont protégés en totalité, une sécurité totale est réalisée et il en va d'ailleurs de même lorsque la lampe doit être extraite des socles du fait que, inversement à ce qui précède, la connexion électrique entre capuchons et culots est interrompue dès le début de l'extraction de la lampe des socles.It is noted that as soon as the beginning of the insertion of the lamp between the bases 14, the operator no longer has any possibility of access to the elements that may be under electric voltage; as also the lamp bases are fully protected, total security is achieved and the same applies when the lamp must be removed from the bases because, conversely to the above, the electrical connection between caps and bases is interrupted from the start of the extraction of the lamp from the bases.

Selon une autre possibilité illustrée aux fig. 4 et 5, on procède par basculement de la lampe autour d'un axe de pivotement X-X (voir aussi fig. 8) formé par la coopération des plans d'appui 33, 34, ménagés dans le boîtier 10 du capuchon, avec les bords libres des oreilles 66, 67, ménagés dans le socle.According to another possibility illustrated in FIGS. 4 and 5, 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.

Pour ce faire, (fig. 5 en particulier) la lampe est présentée inclinée par rapport aux socles 14 et on insère l'un quelconque des capuchons dans un socle; on exerce ensuite une poussée (flèche F1) sur le capuchon libre en même temps qu'on l'insère dans son socle correspondant; on remarque que les talons 36B ainsi insérés n'assurent aucune liaison électrique, avec le circuit tant que les capuchons 9 ne sont pas amenés en butée dans leurs socles respectifs.To do this (fig. 5 in particular) 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.

Selon cette façon de faire, une sécurité totale est également obtenue notamment du fait que l'opérateur n'a à aucun moment, une possibilité d'accès à des éléments pouvant être sous tension électrique.According to this way of doing things, total security is also obtained in particular because the operator has at no time a possibility of access to elements that may be under electric voltage.

On remarque (fig. 2 en particulier) qu'un jeu J est ménagé entre la paroi de fond 28 du boîtier 10 du capuchon et le côté de fond 55 du socle; un tel jeu étant obtenu par la coopération du talon 36B avec le plot 58 en sorte qu'on est assuré d'une bonne liaison électrique au niveau des contacts.It will be noted (FIG. 2 in particular) that 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.

Il résulte donc que les manipulations d'une lampe tubulaire à culots axiaux équipée de douilles selon l'invention peuvent être effectuées sans faire courir un quelconque danger à l'opérateur.It therefore follows that the manipulations of a tubular lamp with axial bases fitted with sockets according to the invention can be carried out without causing any danger to the operator.

En effet si l'opérateur introduit la lampe 22 en oblique dans les socles 14, c'est-à-dire une extrémité d'abord puis, l'autre extrémité ensuite (cas des fig. 4 et 5 des dessins) on voit que la liaison électrique entre la lame 36 et le plot (58) n'est effective qu'en fin d'emboîtement, c'est-à-dire lorsque les deux capuchons sont emboités dans leurs socles respectifs. en sorte que pendant tout le temps que dure la mise en place, de la lampe, la lame 36 du capuchon équipant l'extrémité non emboîtée de la lampe dans son sô- cle, ne peut en aucun cas être mise sous tension électrique.Indeed if the operator introduces the lamp 22 obliquely in the bases 14, that is to say one end first then, the other end then (case of fig. 4 and 5 of the drawings) we see that the electrical connection between the blade 36 and the stud (58) is effective only at the end of nesting, that is to say when the two caps are fitted in their respective bases. so that during all the time that the lamp lasts, the blade 36 of the cap fitted to the non-nested end of the lamp in its socket, can in no case be put under electric voltage.

Il en est de même dans le cas de la fig. 6, pour laquelle, dès le début de l'engagement des capuchons dans les socles, aucun élément de contact électrique n'est accessible à l'opérateur.It is the same in the case of FIG. 6, for which, from the start of the engagement of the caps in the bases, no electrical contact element is accessible to the operator.

Inversement, lorsque la lampe doit être ôtée des douilles, par exemple pour son remplacement, la liaison électrique plot 58, lame 36 est coupée à chaque extrémité de la lampe dès le début de l'opération, en sorte qu'il n'y a aucun risque pour l'opérateur si ce dernier venait à toucher les éléments de contact 36 en cours de manoeuvre, ce qui est quasiment impossible, notamment du fait de l'emplacement desdits éléments de contact.Conversely, when the lamp must be removed from the sockets, for example for its replacement, the electrical connection pad 58, blade 36 is cut at each end of the lamp at the start of the operation, so that there is no risk for the operator if the latter were to touch the contact elements 36 during operation, which is almost impossible, in particular due to the location of said contact elements.

Il convient de remarquer en outre que le plot 58 est confiné dans une cavité en étant en retrait par rapport à la face intérieure du côté de fond 25 du socle en sorte que ce plot est aussi quasiment inaccessible même lorsque le capuchon 9 est ôté.It should also be noted that 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.

Bien entendu l'invention n'est pas limitée au mode de réalisation choisi et représenté, lequel est au contraire susceptible de modifications sans pour autant sortir du cadre de l'invention, c'est ainsi, que les éléments de contact pourraient présenter une configuration différente et être disposés à un autre emplacement, qui sera en tout état de cause le plus éloigné possible de l'axe d'articulation X-X, le plot 58 étant prévu en retrait par rapport à une cavité qui le reçoit. De même on conçoit que le capuchon et le socle pourraient présenter une section différente de celle représentée, par exemple circulaire ou autre, sans que les dispositions générales des parties en cause se trouvent modifiées de façon notable.Of course, 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. Similarly, it is understood that 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.

Claims (14)

1. A safety socket for a tubular lamp having axially opposed bases, comprising elastic means (13) disposed between one base (21) of the lamp and a mount (14), these means being adapted to maintain the lamp by a clamping action exerted axially against the bases, and means (12,36) capable of being connected to an electric supply circuit, characterized in that the safety socket comprises a cap (9) comprising two parts (10, 11) assembled together by telescopic mounting, hereinafter called for convenience sake casing (10) and sleeve (11); the said casing (10) being removably interfitted on a mount (14), the said cap accommodating elastic means, whilst means (12, 36) associated with the cap (9) and the mount (14) are adapted to establish an electrical connection with a supply circuit.
2. A safety socket according to claim 1, characterized in that a cap (9) is intended to be engaged on each base of the lamp, the said electrical connection with a supply circuit being established when each cap (9) is fully inserted in its mount (14).
3. A safety socket according to claim 2, characterized in that the sleeve (11) of insulating material is capable of surrounding the base (21) of the lamp and to cooperate, through one end, with a terminal part of the latter, and through its other end with a spacing spring (13) confined in a housing formed between a terminal face of the sleeve (11) and a vertical endwall (28) of the casing.
4. A safety socket according to claim 2 or claim 3, characterized in that the electrical connecting means between a terminal face of the base of the lamp and a supply circuit are constituted by elastically deformable means (12) confined in the aforesaid housing having a heel outside of the casing, this heel being cooperable with a contact element (58) fixed to the mount.
5. A safety socket according to claim 4, characterized in that the aforesaid elastically deformable means is a spring (12) coaxial with and inside the spacing spring (13), this spring having one end cooperable with a terminal face of a base (21) of the lamp (22), and another end cooperable with a blade (36) extending inside the aforesaid housing and having a heel (36B) outside the casing.
6. A safety socket according to any one of claims 2 to 5, characterized in that the sleeve (11) is slidably mounted in the casing (10) between two limit positions, the said sleeve (11) comprising for this purpose a longitudinal slot (26) cooperating with a finger (40, 40A) fixed to the said casing (10).
7. A safety socket according to claim 2, characterized in that the contact element (58) in the mount is a block fixed to the mount (14), this contact block being confined inside a cavity (57) provided in the endwall (55) of the mount, and in the vicinity of the fastening base (50) of the latter, on a support, the cavity being such that the contact block (58) is locked therein and is set back with respect to the inner face of the said vertical endwall (55).
8. A safety socket according to claim 7, characterized in that the contact element (58) fixed to the mount (14) receives a screw ensuring the connection of a lead (80).
9. A safety socket according to claim 7 or claim 8, characterized in that the contact element (58) formes an abutment with the sleeve (10) in a limit position through the medium of a contact blade (16).
10. A safety socket according to claim 7, characterized in that a free upper edge of the vertical endwall (55) of the mount (14) forms a pivot axis (X-X) for the cap (9).
11. A safety socket according to claim 10, characterized in that the aforesaid pivot axis (X-X) is constituted by two lugs (66, 67) situated on either side of a notch (65) formed in the free terminal part of the vertical endwall (55), the said lugs being adapted to cooperate with bearing planes (33, 34) formed on either side of a gripping means (32) extending an upper wall (30) of the casing (10).
12. A safety socket according to any one of claims 2 to 11, characterized in that the sleeve (11) comprises, internally, guide ribs (20) for the base (21) of the lamp (22), the said guide ribs being capable of constituting, through another end for cooperating with a connecting terminal part of the lamp (22) and a base (21).
13. A safety socket according to claim 7, characterized in that the mount (14) comprises on either side of the aforesaid cavity (57) openings (59,60) for the passage of a lead (80).
14. A safety socket according to any one of claims 2 to 13, characterized in that the sleeve has a substantially square cross section as does the casing (10) in which it is at least partially engaged with clearance just sufficient for sliding, whilst the base (14) has a cross section corresponding to that of the casing with an opening into two faces for interfitting with the latter.
EP81400135A 1980-01-29 1981-01-29 Security fitting for a tubular lamp with axial end caps Expired EP0033287B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81400135T ATE7552T1 (en) 1980-01-29 1981-01-29 SAFETY SOCKET FOR A TUBULAR LAMP WITH AXIAL END CAPS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8001837A FR2474773A1 (en) 1980-01-29 1980-01-29 SAFETY SOCKET FOR TUBULAR LAMP WITH AXIAL CULOTS
FR8001837 1980-01-29

Publications (2)

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

Family

ID=9237975

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81400135A Expired EP0033287B1 (en) 1980-01-29 1981-01-29 Security fitting for a tubular lamp with axial end caps

Country Status (6)

Country Link
EP (1) EP0033287B1 (en)
AT (1) ATE7552T1 (en)
AU (1) AU6672881A (en)
CA (1) CA1172324A (en)
DE (1) DE3163549D1 (en)
FR (1) FR2474773A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2698734B1 (en) * 1992-10-20 1995-07-07 Liesse Maurice HIGH SECURITY SWITCHING SOCKET LIGHTING FOR TUBULAR LAMPS WITH AXIAL BASES.

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 (en) * 1960-08-16 1964-05-14 Maehler & Kaege Ag Pair of sockets for glow start fluorescent lamps with metal caps with single-pin bases
DE1198931B (en) * 1963-10-25 1965-08-19 Vossloh Werke Gmbh Socket for fluorescent lamps with asymmetrical light emission, the double contact base of which can be inserted into the cylindrical and axially movable retaining piston of the socket

Also Published As

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

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