DE2221854A1 - Base for light bulbs, fuses and the like. - Google Patents

Description

Jiob © r'fc C. liB.viua.GQ $ S «j5 Rumsoy EQaA ₅ Yonksrs«, N ₀ I., USA-

Base for * incandescent lamps _s Si.eherungon and the like

sas:

This invention shall look to a socket for incandescent lamps "fuses and the like _s which a © plurality of p & rallelgesch & lteten conductors _9, for example, filaments, Suhmelzdrahte- and the like j to a common 'lead contained _s wherein the socket asc a threaded sleeve @ is electrically connected to the common supply line is connected and an iso ¹ lierkörper · aufninaat, extend through the look di © Änsehlußdräht © for the ladder.

i Paden-Ölühlarap-, in which only one filament is used at a time, ₉ whereby the service life of the incandescent lamp is doubled, are known, for example, from British patent 297 833 and US patents 966 812 and 3,696,400. The critical component of the light bulb of the British Patent referred to is according to an inner semiconductor barrier layer which during opening ®T de "circuit due to a Z ^l: interference by hitting the first filament electrically wide filament is χηά thereby automatically connects dan. The disadvantage of the "3" version is that it is impossible to check each of the individual circuits in the incandescent lamp after manufacture, since the existence of one circuit depends on the destruction of the other. Furthermore, in the event of a malfunction of the automatic switchover

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Device the incandescent lamp unusable ». The arrangement one © Such a semiconductor in the incandescent lamp also increases the Manufacturing costs.

The US Patent 966 812 shows a lamp with two filaments, which are held electrically in parallel and connected to two contacts. These contacts are arranged so that only one contact can come into contact with the mating contact in the lamp socket. The overhead contact is used until the filament connected to it is destroyed. When this occurs, the overhead contact is removed, exposing the lower contact and allowing the second filament to be connected. The disadvantage of this bulb consists, among other pure that it is impossible for _a power circuits dsr to test two filaments after the production, as only one of the circuits can be connected in the undesirable "th internal position of the joints between the filament and the contacts and the expensive production.

The incandescent lamp of US Pat. No. 3,696,400 also has two filaments open and "a plurality of superimposed ones Contact plates which are insulated from one another, each contact plate having an opening for receiving aiinde · ™ at least one of the connecting wires connected to the filaments are. If one of the filaments has burned out, the outermost contact plate is broken off with its insulation, whereby the underlying contact plate is exposed and enables the connection of a second filament. This too Construction has several disadvantages. As with the previously described versions, there is no possibility here either To test each filament circuit after manufacture, as only one usable circuit is accessible at a time. Because of

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the way in which the contacts are separated from the socket, it is very easily possible that one or more Contacts are unintentionally broken off, for example when inserting into a defective socket, which means reliability and effectiveness of this incandescent lamp is significantly reduced.

The invention is based on the _object's to create a socket for a light bulb, a fuse, and the like, including a plurality of parallel conductors, such as filaments, melting wires, etc., and a simple and reliable way from allowing a conductor on the other to switch if the first conductor has burned out, and in which it is also possible to check the single circuit® after the incandescent lamp or fuse has been completed.

This object is achieved in that at the exposed outside of the insulating body are each attached to one of the conductors connected contacts and that a tongue is provided, which by 180 ° can be folded down to make one or the other contact fully accessible and available.

This tongue can consist of mutually isolated extensions of the contacts are formed, with one contact being covered in one folded position and in the other folded position, the other contact is covered. Alternatively, the tongue can be of one between the two contacts attached, 180 ° hinged insulating plate are formed, which in a folded position the one contact and in the other folded position covers the other contact. In leg In these cases, both contacts are exposed before this tongue is folded over into one or the other position; so that an over-

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testing of the two circuits can be carried out after the SokkelB has been manufactured. Alternatively, by folding down the tongue In one position and checking the first circuit, the tongue is brought into the other position and the second Circuit to be checked.

The contacts can be formed by plates bent at right angles, the kink edges of which are adjacent to one another, one limb of the plate being fastened to the insulating body and connected to the conductors, and the other See legs extend perpendicular to it and are connected by an insulating layer su a multilayer body, the Can be folded by 180 ° to completely expose one or the other contact and make it available. Said insulating layer can consist of an insulating varnish or a plate consist of an insulating material which is glued to the relevant legs of the contact plates.

The simplicity of this arrangement as well as its attachment to an external surface of the incandescent lamp or fuse leads to it from a simple and economical production. It also ensures the greatest possible reliability. The availability of both contact plates is of particular importance and associated circuits, allowing verification of both circuits after manufacture and prior to commercial use. Access to the second The circuit is therefore not dependent on the destruction of the first circuit, as is the case with the known arrangements.

Further details and features of the invention emerge from the following description in conjunction with the drawings, in which some exemplary embodiments of the invention are shown. It shows:

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Fig. 1 is a longitudinal section through an incandescent lamp rait one, inventive & ßen base,

Fig. 2 is an enlarged perspective view of the ~ permanent contacts,

Fig. 3 is a side view of the Glühlampensockel®, partly in section, with the attached Umaehaltkontakten shown in FIG. 2 _S

4 and 5 front views of the base in FIG. 3, wherein the Kontaktplattea in the one and in the are in another position,

6 shows a section through a fuse with a device according to the invention Base, and

FIG. 7 shows a side view of a base with another formed switching _mechanism, partially in section.

In Fig. 1 , 10 denotes an incandescent lamp which consists of a glass bulb 11 with a neck 12 which is closed at its lower end. Extends from this lower end. .,. · A connecting piece 13 extends upwards into the Inner® of the glass bulb 11, which contains a first conductor IH, an awaited conductor 15 and a third conductor 16 »A first filament 17 is connected to the first conductor 14 and the conductor 16 and a second filament 18 is connected to the second conductor 15 and the third conductor 16. The lower ends of the conductors 14,15 and are connected in the manner described later

The incandescent lamp 10 has a base 19 which consists of a hollow threaded connector 20, the upper end 21 of which with the V ^ Neck 12 of the glass bulb 11 is connected. In the lower section 23 of the? An insulating body 22 is arranged in the threaded sleeve 20. ; C. The third conductor 16 is, as previously mentioned, with its upper one

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End connected to both filaments 17 and 18 and extends downward through the base 13 and outward through the neck 12 of the glass bulb 11. The exposed end of the conductor 16 is soldered to the upper end 21 of the threaded sleeve 20 at 2k «The conductor 13 forms So a common 3 EU or return line for the one or the other of the? Filaments 17 or 18 flow electrical current.

The lower end of the conductor 1 * 4 extends through the insulating body 22 and is soldered to the outside of a first contact 25. The lower end of the is in the same white Conductor 15, which also extends through insulating body 22, is soldered to the outer surface of a second contact 26.

The details of the contact arrangement can be seen from FIG. The contact arrangement consists of two approximately circular contact plates 25, 26. Each contact plate 25, 26 is bent at right angles, as a result of which a horizontal section 27 b & w »28 and a vertical section 29 or 30 are formed. The horizontal sections 27, 28 are attached to the outer surface of the insulating body 22, with their bent or kinked edges lying next to one another, and they are provided with openings 31 and 32 for receiving the ends of the conductors 14, 15. The vertical sections 29, 30 are connected to one another, but are electrically insulated from one another. This can be done by using an insulating adhesive between the vertical sections 29 and 30, these sections being electrically isolated from one another, but simultaneously glued to one another. Preferably, however, an insulating plate 33 is arranged between the vertical sections 29 and 30 and glued to them, so that a multilayer tongue 3 ¹ J is formed. Eb be

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advised ρ that the insulating plate 33 look over extends the circumference of the vertical sections 29,30, to ensure total isolation between these sections.

The contact plates consist of soft, electrically conductive Substances such as brass, copper, aluminum and the like. The insulating adhesives are mostly based on vinyl rubber, Epoxy, cellulose acetate, polyvinylidene chloride, Polyethylene and the like, while the insulating pad made of rubber, plastics, such as polyethylene and polypropylene, and the like can exist.

As can be seen from Fig. 2, 4 and 5, the multi-layer Tongue 34 can be folded through 180 ° to alternatively one or the other contact 25 BSW. 26 to expose or cover. The tongue 34 can be bent so that the horizontal portion 28 and the vertical portion 30 of the Contact 26 lie on top of one another, whereby the contact 25 is completely exposed (Fig. 4). When the tongue is 34 in the other direction is folded down, come the horizontal one Section 27 and the vertical section 29 of the contact plate 25 lie on top of one another and the contact plate 26 is completely exposed (Fig. 5).

Di® incandescent lamp 10 is used in the usual way in connection with a Screw socket is used which has a contact on the peripheral wall and a central contact that of the first Contact is electrically isolated. The incandescent lamp 10, in which the tongue 34 is bent so that only the contact plate 25 exposed (Fig. 4), is screwed into the socket so that the Kontaktρlatte 25 touches the HitteIkontakt the socket and a closed electrical circuit through the conductor 14, the filament 1 ?, the conductor 16 and the threaded sleeve

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arises. The filament thus emits light.

If the filament 17 is burned out or otherwise destroyed is, whereby the electrical circuit is interrupted, the incandescent lamp 10 is removed from its socket, the tongue 34 bent by 180 °, so that the contact plate is now 26 is completely exposed, and the bulb is screwed back in. Now ste.ht the Kontaktplatts 26 with the center contact of the socket in contact and current flows through the Conductor 15, filament 18, conductor 16 and threaded sleeve 20. The filament 18 thus emits light.

The bulb shown has a service life that is approximately twice as long as that of conventional incandescent lamps. It can be produced without great effort and at relatively low cost. After the incandescent lamp is manufactured and before it is used, the tongue 34 is that shown in FIG Position "so that both contact plates 25 and 26 are exposed and the circuits of the two filaments 17, 18 are checked for themselves can be. Alternatively, the tongue 34 can first be brought into the one position in which only the contact plate 25 is exposed and the associated circuit is checked, and then brought into the other position in which only the contact plate 26 is exposed, and the associated second Circuit to be checked.

Fig. 6 shows in detail the structure of a fuse 50 with a base according to the invention. As shown, the fuse 50 contains a hollow body 51 made of insulating material, two fuse elements 52 and 53 within the hollow body 51 and a cover 54 which extends over the top of the hollow body 51 extends. The cover 54 is preferably made of a transparent material, such as glass or plastic, in order to be able to see the securing elements 52 and 53. The base 19 of Fig.l is

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shown in connection with the hollow body 51 in order to form the fuse 50. The upper end 21 of the threaded sleeve 20 is therefore connected to the lower closed end of the hollow body 51. The threaded sleeve 20 forms, as described in detail above in connection with FIG. 1, a part of the base 19, which in turn contains the insulating body 22. The contact arrangement 55, which corresponds to that of FIG. 2, is attached to the outer surface of the insulating body 22. Dia H & upt ~. Components of this contact arrangement 55 are the contact plates 25s26 with horizontal sections 27, 28, openings 31 * 32 for receiving the ends of the conductors 55 »57 and vertical sections 29, 'SO, which are connected to one another with the interposition of an insulating plate 33 ₃ μm form the pivoting, multilayered tongue 3 ^s * £ u.

The conductor 56 extends upwards from its soldering point on the contact plate 25 through the hollow body 51 and is electrically connected to the rail element 52 at its upper end. The conductor 57 extends won the Son ™ clock plate 26 öursh the insulating body 22 and the hollow body 51 and is upwards mi '; the -c ^ äcksrimgeelement 53 connected. The other ends of the form see-holes 52 and 53 are connected to a conductor Sfl which extends through the hollow body 51 and which is connected to the upper end S1 of the threaded sleeve 20 is ms to form the common inlet or Rückloitimg. When using © r d fuse 50 is screwed into the j eixse zdchtgeseigte Schraubfasaung 20 G & wiroäehüla © having ei'.ien Mittelkosatakt and a lateral contact. Venn the Kunge 3 * t so is folded over so that the contact plate 25 is completely exposed, this contact plate 25 comes into contact with the center contact of the setaaubf & samng "', un atm electrical stroxakr © i @ dureli itBn conductor 56,

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the fuse element 52 and u®xi conductor 58 and the threaded sleeve 20 SEU close »If the circuit is overloaded, the fuse element 53 * melts, which interrupts the circuit. .

Close is only necessary eu _s backup! 50 * "screw it out to fold the tongue 34 _a now so that the contact plate 26 is completely exposed, and the fuse 50 to be screwed again. Now the contact plate 26 comes into contact with the center contact of the socket, so the electrical circuit via the conductor 57, the safety element 55 and. the conductor 58 is closed.

As with the previously described light bulb construction This fuse also has a lifespan that is about twice οο is large, like that of common fuses; it can be produced with simple means and at low cost, and enables both circuits to be checked after manufacture.

Pig. 7 seigt a modified tmsqftaltbare contact assembly _3, the 7O gamfiß both with the light bulb IO Fig. 5, as the ¹ aych fuse 50 shown in FIG. 6 can be used. In this case, contact plates 71 and 72 are attached to the outer surface of the insulating body of the threaded part 33, which are separated from one another by a gap Jh. The simple conductors protrude through openings in the contact plates 71 and 72 and are soldered to their outer surfaces at 75 and 76. A £ i.mg @ 77 made of insulating material? which is at least the size of each Kmitaktplatten 71 * 72 has, is inserted into the gap JH, - 'wherein it is provided with a holder, which maintains si © in the gap 7 ¹ "so that it can be pivoted by 180 °. The bracket can, for example, «in

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his hinge, not shown, which is attached to the insulating body of the Threaded sleeve 53 is attached and either ein.einstückiger Part of the tongue 77 or outside of the tongue 77 can be connected. As shown, the holder can also be a cylindrical edge 78 on the oiling tongue 77, whose Diameter is greater than the distance between the contact plates 71 and 72 on their surface. So around the bracket To hold in the gap 74, it is necessary that the mutually facing side edges of the contact plates 71 and 72 towards each other outwards, i.e. the cross-section of the Slot 74 increases progressively downward. In this way, the insulating tongue 77 is held in the gap 74, but it has sufficient freedom of movement, to be folded 180 ° from one position to the other.

The use of an incandescent lamp 10 or a fuse 50 with the switchable contact arrangement 70 is identical to the use of an incandescent lamp as shown in FIGS. 1 to 6 or Fuse. To the circuit associated with the Kontaktρlatte 71 to be able to connect, it is only necessary to fold the insulating tongue 77 so that sis the other contact plate 72 completely covers. If alternatively that of the contact plate 72 associated circuit is to be switched on, the insulation zone 77 is folded to the other side in order to completely cover the contact plate 71. The benefits of execution 7 are therefore the same as those of the embodiment according to FIGS. 1 to 6.

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Claims (1)

Claims Ly / ßoclcel for incandescent arapens, fuses and the like, which contain an actual number of conductors connected in parallel (filaments, helical wires and the like) with a common lead, the base having a Gouin sleeve which is electrically connected to the common lead and accommodates an insulating body to which the lead wires hindurcherstrocken for the conductor, characterized in that adjacent to the exposed left end outside of the insulating body (22) two, _(s 17 i8!; 52, 53) with the conductors mounted contacts (25,26,71,72) connected are, and that a tongue (3 ^, 77) is provided, which can be folded in by 180 ° and alternatively fully exposes one or the other contact (25, 26; 7 ** 72). 2, base according to claim 1, characterized in that the Tongue (3 * 0 of two mutually isolated sections (29,30) of the contacts (25,26) is formed. 3. Socket according to Claim 1 and 2, characterized in that the contacts are formed by plates (? 5,3O) bent at right angles, the kinked edges of which are adjacent to one another, the one leg (27,28) of the plates (25,26 ) attached to the insulating body (22) and connected to the relevant conductors (1 ^ 15 e.g. f> 6jS7) and the other legs (29,30) extend vertically and over an insulating layer (33) su a multilayered extension (3 * 0 are connected, which can be folded around LöO to expose one or the other contact (25.26) vo31. BATH ORIGINAL s - Al * l. Base according to claim 3 »characterized in that the. the multilayer tongue (3 * 0 forming legs (29,30) connected to one another by means of an insulating adhesive are. 5. Base according to claim 3 * characterized in that the the leg (29,30) forming the multilayer tongue (34) are connected to one another with the interposition of an insulating plate (33). 6. Socket according to claim 1, characterized in that the tongue (77) consists of an electrically insulating material and alternatively on the one by folding it over by lOO ° or the other contact (71,72) can be folded. 7. Base according to claim 6, characterized in that the two contact plates (71,72) attached at a distance from one another on the outer surface of the insulating body (22) are such that a gap (7 * 0 remains between them, and that the electrically insulating tongue (77) in these Gap (7 * 0 swiveling around l80 is inserted, and one Size which is at least the size of each of the contact plates (71,72) corresponds. 8. Socket according to claim 7, characterized in that the Tongue (77) is hinged between the Contact plates (71,72) on the insulating body (22) of the threaded sleeve attached i3t. . 9. Socket according to claim 7, characterized in that the insulating tongue (77) has a cylindrical edge (78) whose diameter is greater than the distance between the contact plates (71,72) on its surface, the opposite side edges of the Kontal.tplatten (71,72) run so obliquely that the Quopochnitt aeon Spaltoa. (7 * 0 progressively downwards 209847/0834 Empty soap