EP0778640A1 - Lampholder, especially for halogen lamps - Google Patents
Lampholder, especially for halogen lamps Download PDFInfo
- Publication number
- EP0778640A1 EP0778640A1 EP96116007A EP96116007A EP0778640A1 EP 0778640 A1 EP0778640 A1 EP 0778640A1 EP 96116007 A EP96116007 A EP 96116007A EP 96116007 A EP96116007 A EP 96116007A EP 0778640 A1 EP0778640 A1 EP 0778640A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- legs
- spring
- central piece
- lamp
- socket
- 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.)
- Granted
Links
- 229910052736 halogen Inorganic materials 0.000 title claims description 6
- 150000002367 halogens Chemical class 0.000 title claims description 6
- 239000000463 material Substances 0.000 claims description 7
- 210000002105 tongue Anatomy 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000003811 finger Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
Images
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/627—Snap or like fastening
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/08—Connectors or connections adapted for particular applications for halogen lamps
Definitions
- the invention relates to a lampholder, in particular for halogen reflector lamps, with a lampholder housing made of insulating material and a retaining spring which can be latched with it for the lamp inserted into the lampholder, the retaining spring having an essentially ring-shaped central piece which can be placed on the lampholder body one side, in pairs, two spring legs for attacking the lamp base and on the other side two locking legs for fixing the spring clip on the socket body are arranged.
- the invention is based in particular on lamp holders of the GU4 and GU5.3 series.
- Such sockets in the form of cylindrical bodies are relatively small and have an outer diameter of approximately 17 mm and a height of 9.5 mm. They contain the contacts for the electrical connection of the conductors to be inserted with the lamp contact pins and with a pitch of approx. 12 mm through holes for fastening elements such as screws or rivets, with which the socket can be fastened to a socket holder, e.g. a light plate.
- Reflector lamps which are socketed halogen lamps with a fixed reflector, must be held particularly on the socket, for which purpose the retaining springs, which are essentially U-shaped in cross section, are used.
- Such a spring also has a central central piece that can be placed on the socket body and means for fastening the retaining spring to the socket body.
- the central piece of the retaining spring which also forms the web of the essentially U-shaped component, engages under the socket body and is riveted to the socket body in the area of the through holes for the fastening means.
- This embodiment has the disadvantage that, when viewed vertically from above, the retaining spring legs, which are V-shaped in cross section, largely cover the through holes. So if such a socket is to be mounted with retaining springs attached to it, the assembly is on the one hand cumbersome because the retaining spring legs have to be spread out to insert and actuate the fastening means; on the other hand, they can also be bent and damaged as a result of such manipulation.
- the central piece of the retaining spring can be pressed onto the extension of the same from the rear of the socket, and barb-like latching legs are formed from it on the side of the central piece pointing away from the retaining spring legs, which latch legs are formed upon reaching the Support the intended position against a support shoulder on the outside of the socket body.
- the through holes required for fastening the socket are arranged in a plane between the spring legs of the retaining spring and offset outwards in such a way that they are no longer covered by the retaining springs.
- this is a special design of the socket body.
- the invention is therefore based on the object to make a lamp holder of the type outlined in the preamble of claim 1 available, which is particularly cleverly designed with regard to the design and arrangement of the retaining spring that on the one hand a socket body of generally conventional design can be used and on the other hand the fastening openings of the socket body are completely freely accessible at least during assembly and if necessary for dismantling the socket.
- the invention solves this problem by the features of claim 1. It is therefore particularly characterized in that the latching legs are arranged in the axial direction of the spring legs, that is in the same circumferential area of the central piece, and that the central piece forms a spiral spring over which the latching legs are expandable by compressing the spring legs or increase their holding forces on the socket body when the spring legs are loaded to spread.
- the retaining spring can only be snapped onto the frame body after the frame has been mounted on the frame carrier. This is particularly easy because the retaining spring has a shape that is the broadest Is comparable to that of a clothespin.
- the ring-shaped central piece has the importance of the coil spring of the clothespin, the grip legs are formed by the spring legs of the retaining spring and the gripping or clamping legs are formed by the latching legs, with which the retaining spring is fixed to the socket body.
- the spring legs only need to be pressed together between the thumb and index finger and the retaining spring with the central piece must be placed on the visible surface of the socket body. If you then let go of the clip, the locking legs automatically engage the socket body. If necessary, the retaining spring can be removed from the line like a clothespin.
- the invention offers a particular advantage in that, due to the spreading of the spring legs of the retaining spring by the lamp inserted into the socket, the latching legs are pressed the more strongly against the socket body, the more the lamp spreads the spring legs apart.
- Spring legs and locking legs support each other in an advantageous manner in terms of their power development.
- the essential feature of the invention according to which the locking legs are arranged in the axial direction of the spring legs, that is to say in the same circumferential area of the central piece, has the advantage that axially directed tensile forces on the lamp are transmitted directly into the locking legs, so that in the process bending of the central piece is excluded and the connection on the socket body is therefore particularly strong and stable.
- a retaining spring that can be plugged in separately from the outside of the socket body is also provided, which also has an annular central piece, of which the two spring legs are on one side and the other Extend the two locking legs towards the side.
- the spring legs and locking legs are not in the same narrow circumferential area, that is to say not 'in line' to a certain extent, but are offset in pairs by about 90 ° each. Therefore, the spreading or compression of the spring legs and / or the latching legs has no favorable influence on optimal power delivery.
- An approximately loose, wobbling seat of the locking legs on the socket body is not improved even after inserting the lamp between the spring legs.
- the tensile forces are first transferred to the central piece before they are introduced from there into the locking legs. This has the disadvantageous consequence that such tensile forces lead to the deflection of the central piece.
- the retaining spring can also not be assembled in the simple manner resulting from the invention and can be removed again from the socket body with even greater difficulty.
- annular central piece is cut out of a strip of material while leaving the material for the locking legs and that the length of the locking tongues and their connection to the peripheral area of the central piece is defined by essentially secant incisions.
- This special cut when punching out the retaining spring from the sheet material strip means that the starting material is used exceptionally sparingly.
- To form the locking tongues use is made in full only of that section of the material strip from which the central opening of the annular central piece is made. As a result, there is extremely little waste of cut and the sheet metal strip from which the retaining spring is produced can be very narrow.
- a lamp socket designated overall by 10, comprises a socket body 11 and a retaining spring 12 which can be locked therewith.
- a socket serves in particular to accommodate halogen reflector lamps, that is to say low-voltage lamps with a base and a reflector fixedly attached to it.
- the socket body 11 which consists of insulating material, mainly plastic or porcelain, contains terminals, not shown, for screwless plug connection of stripped conductor ends on the one hand and for the electrical connection of the lamp contact pins, also not shown, on the other hand, for which insertion openings 13 are provided on the front or top of the socket body 11 .
- the socket body has through holes 14 which are offset circumferentially with respect to the insertion openings 12 for fasteners such as rivets or screws, by means of which the socket body 11 or the like on a socket support such as lamp plate. is attached.
- the retaining spring 12 is used to hold the lamp inserted into the socket with the contact pins. It has an annular central piece 15, on one side of which spring legs 16 extend opposite one another, forming pairs. They each have an essentially V-shaped or Z-shaped shape 17 which engages in a groove provided for this purpose on the sides of the lamp holder or engages on a corresponding bead.
- latching legs 18 are also provided, which, however, extend in the opposite direction.
- Each of the latching leg 18 has at its free end a bent by about 90 o inwardly latching hook 19 which is intended to engage below a stop surface 20 on the outer side of the socket body.
- the retaining spring 12 forms a double-leg clip due to the geometry described and shown, the principle of which is roughly comparable to that of a clothes peg.
- the two spring legs 16 are pressed together and the retaining spring is placed on the socket body until the annular central piece 15 is seated on it. Then you let go of the spring legs 16, and the claws of the locking hooks 19 on the shoulders 20 of the socket body 11 take place automatically.
- the clamp configuration also has the considerable advantage that if the spring legs 16 spread due to the lamp located between the spring legs 16, the latching legs 18 are pressed against the socket 11 with increased force, the arrangement of the retaining spring 12 consequently on the socket body 11 automatically reinforcing is self-locking.
- Fig. 4 shows the retaining spring 12 in development or the still flat blank stamping before the shaping into the concrete shape shown in the remaining figures.
- those sections or parts of the blank 22 in FIG. 4 are provided with the same reference numbers as those of the finished retaining spring 12.
- latching legs 18 with their latching hooks 19 are fully integrated into the surface from which the opening of the annular central piece 15 is punched out. While in the prior art a blank is punched out in full circular shape, the much more economical die cut takes into account here at the same place already the shape for locking leg 18 and locking hook 19 by letting them stand in the material of the sheet metal strip.
- the free ends of the latching legs 18, that is to say in particular the arrangement of the latching hooks 19, are arranged eccentrically with respect to the longitudinal center plane 25, but in mirror image in the sense of rotational asymmetry. You can therefore overlap each other in the cut. Through this skillful guidance of the punch cuts, the length of the locking legs 18 can be additionally increased overall.
Landscapes
- Fastening Of Light Sources Or Lamp Holders (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Lampenfassung, insbesondere für Halogen-Reflektorlampen, mit einem aus Isolierstoff bestehenden Fassungsgehäuse und einer mit diesem verrastbaren Haltefeder für die in die Fassung eingesteckte Lampe, wobei die Haltefeder ein im wesentliches ringförmiges, am Fassungskörper anlegbares Zentralstück aufweist, zu dessen einer Seite, jeweils paarig, zwei Federschenkel zum Angriff am Lampensockel und zu dessen anderer Seite zwei Rastschenkel zur Festlegung der Federklammer am Fassungskörper angeordnet sind.The invention relates to a lampholder, in particular for halogen reflector lamps, with a lampholder housing made of insulating material and a retaining spring which can be latched with it for the lamp inserted into the lampholder, the retaining spring having an essentially ring-shaped central piece which can be placed on the lampholder body one side, in pairs, two spring legs for attacking the lamp base and on the other side two locking legs for fixing the spring clip on the socket body are arranged.
Die Erfindung geht insbesondere von Lampenfassungen der Typenreihen GU4 und GU5,3 aus. Solche Fassungen in Form von zylindrischen Körpern sind relativ klein und weisen einen Außendurchmesser von etwa 17 mm und eine Höhe von 9,5 mm auf. Sie beinhalten die Kontakte zur elektrischen Verbindung der einzusteckenden Leiter mit den Lampenkontaktstiften und in einem Stichmaß von ca. 12 mm Durchgangslöcher für Befestigungsorgane wie Schrauben oder Nieten, mit denen die Fassung an einem Fassungsträger, z.B. einem Leuchtenblech, befestigt werden kann. Reflektorlampen, das sind gesockelte Halogenlampen mit einem fest angebrachten Reflektor, müssen besonders an der Fassung gehalten werden, wozu die im Querschnitt im wesentlichen U-förmig angeordneten Haltefedern dienen. Eine solche Feder weist außerdem ein zentrales, am Fassungskörper anlegbares Zentralstück auf und Mittel zur Befestigung der Haltefeder am Fassungskörper.The invention is based in particular on lamp holders of the GU4 and GU5.3 series. Such sockets in the form of cylindrical bodies are relatively small and have an outer diameter of approximately 17 mm and a height of 9.5 mm. They contain the contacts for the electrical connection of the conductors to be inserted with the lamp contact pins and with a pitch of approx. 12 mm through holes for fastening elements such as screws or rivets, with which the socket can be fastened to a socket holder, e.g. a light plate. Reflector lamps, which are socketed halogen lamps with a fixed reflector, must be held particularly on the socket, for which purpose the retaining springs, which are essentially U-shaped in cross section, are used. Such a spring also has a central central piece that can be placed on the socket body and means for fastening the retaining spring to the socket body.
Bei einer älteren vorbekannten Ausführung untergreift das Zentralstück der Haltefeder, welches zugleich den Steg des im wesentlichen U-förmigen Bauteils ausbildet, den Fassungskörper und ist im Bereich der Durchgangslöcher für die Befestigungsmittel mit dem Fassungskörper vernietet. Diese Ausführung hat den Nachteil, daß - bei Betrachtung senkrecht von oben - die im Querschnitt V-förmig ausgeprägten Haltefederschenkel die Durchgangslöcher größtenteils verdecken. Wenn also eine solche Fassung mit daran fest angebrachten Haltefedern montiert werden soll, ist die Montage einerseits umständlich, weil zum Einbringen und Betätigen der Befestigungsmittel die Haltefederschenkel gespreizt werden müssen; zum anderen können diese bei einer solchen Manipulation auch verbogen und mithin beschädigt werden.In an older, known embodiment, the central piece of the retaining spring, which also forms the web of the essentially U-shaped component, engages under the socket body and is riveted to the socket body in the area of the through holes for the fastening means. This embodiment has the disadvantage that, when viewed vertically from above, the retaining spring legs, which are V-shaped in cross section, largely cover the through holes. So if such a socket is to be mounted with retaining springs attached to it, the assembly is on the one hand cumbersome because the retaining spring legs have to be spread out to insert and actuate the fastening means; on the other hand, they can also be bent and damaged as a result of such manipulation.
Bei einer verbesserten Ausführungsform, von der die Erfindung ausgeht, ist das Zentralstück der Haltefeder von der Rückseite der Fassung her auf einen Fortsatz derselben aufpreßbar, und auf der von den Haltefederschenkeln wegweisenden Seite des Zentralstücks sind aus ihm widerhakenartige Rastschenkel ausgeformt, die sich bei Erreichen der bestimmungsgemäßen Lage jeweils gegen eine Stützschulter an der Außenseite des Fassungskörpers einrastend abstützen. Die zur Befestigung der Fassung erforderlichen Durchgangslöcher sind in einer Ebene zwischen den Federschenkeln der Haltefeder und derart nach außen versetzt angeordnet, daß sie von den Haltefedern nicht mehr übergedeckt werden. Hierbei handelt es sich allerdings um eine besondere Bauform des Fassungskörpers. Im Unterschied dazu sind bei den üblichen bekannten Fassungen der eingangs genannten Dimension die Durchgangslöcher in den im wesentlichen kreisförmigen Umriß des Fassungskörpers integriert und würden auch von der zuletzt beschriebenen Haltefeder abgedeckt.In an improved embodiment, from which the invention is based, the central piece of the retaining spring can be pressed onto the extension of the same from the rear of the socket, and barb-like latching legs are formed from it on the side of the central piece pointing away from the retaining spring legs, which latch legs are formed upon reaching the Support the intended position against a support shoulder on the outside of the socket body. The through holes required for fastening the socket are arranged in a plane between the spring legs of the retaining spring and offset outwards in such a way that they are no longer covered by the retaining springs. However, this is a special design of the socket body. In contrast, the Conventional known versions of the dimension mentioned initially integrated the through holes in the substantially circular outline of the socket body and would also be covered by the retaining spring described last.
Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Lampenfassung der im Oberbegriff des Anspruchs 1 näher umrissenen Art verfügbar zu machen, die hinsichtlich Ausbildung und Anordnung der Haltefeder insbesondere so geschickt ausgebildet ist, daß einerseits ein Fassungskörper grundsätzlich üblicher Bauform verwendet werden kann und andererseits die Befestigungsdurchbrüche des Fassungskörpers wenigstens bei der Montage und ggf. zur Demontage der Fassung vollkommen frei zugänglich sind.The invention is therefore based on the object to make a lamp holder of the type outlined in the preamble of claim 1 available, which is particularly cleverly designed with regard to the design and arrangement of the retaining spring that on the one hand a socket body of generally conventional design can be used and on the other hand the fastening openings of the socket body are completely freely accessible at least during assembly and if necessary for dismantling the socket.
Die Erfindung löst diese Aufgabe durch die Merkmale des Anspruchs 1. Sie ist demnach insbesondere dadurch gekennzeichnet, daß die Rastschenkel in axialer Richtung der Federschenkel, also im jeweils gleichen Umfangsbereich des Zentralstücks, angeordnet sind und daß das Zentralstück eine Biegefeder ausbildet, über die die Rastschenkel durch Zusammendrücken der Federschenkel spreizbar sind bzw. ihre Haltekräfte am Fassungskörper erhöhen, wenn die Federschenkel auf Spreizung belastet sind.The invention solves this problem by the features of claim 1. It is therefore particularly characterized in that the latching legs are arranged in the axial direction of the spring legs, that is in the same circumferential area of the central piece, and that the central piece forms a spiral spring over which the latching legs are expandable by compressing the spring legs or increase their holding forces on the socket body when the spring legs are loaded to spread.
Zufolge der Erfindung kann die Haltefeder erst nach der Montage der Fassung am Fassungsträger auf den Fassungskörper aufgerastet werden. Dies gestaltet sich vor allem deshalb besonders einfach, weil die Haltefeder in einer Formgestaltung vorliegt, die im weitesten Sinne mit derjenigen einer Wäscheklammer vergleichbar ist. Dabei kommt dem ringförmigen Zentralstück die Bedeutung der Wickelfeder der Wäscheklammer zu, die Griffschenkel werden von den Federschenkeln der Haltefeder ausgebildet und die Greif- oder Klemmschenkel von den Rastschenkeln, mit denen die Haltefeder am Fassungskörper festgelegt wird.According to the invention, the retaining spring can only be snapped onto the frame body after the frame has been mounted on the frame carrier. This is particularly easy because the retaining spring has a shape that is the broadest Is comparable to that of a clothespin. The ring-shaped central piece has the importance of the coil spring of the clothespin, the grip legs are formed by the spring legs of the retaining spring and the gripping or clamping legs are formed by the latching legs, with which the retaining spring is fixed to the socket body.
Zum Anbringen der Haltefeder an den - bereits montierten - Fassungskörper brauchen die Federschenkel lediglich zwischen Daumen und Zeigefinger zusammengedrückt zu werden und die Haltefeder mit dem Zentralstück auf die Sichtfläche des Fassungskörpers gesetzt zu werden. Läßt man die Klammer dann los, greifen die Rastschenkel automatisch am Fassungskörper ein. Bei Bedarf kann die Haltefeder wieder abgenommen werden wie eine Wäscheklammer von der Leine.To attach the retaining spring to the - already assembled - socket body, the spring legs only need to be pressed together between the thumb and index finger and the retaining spring with the central piece must be placed on the visible surface of the socket body. If you then let go of the clip, the locking legs automatically engage the socket body. If necessary, the retaining spring can be removed from the line like a clothespin.
Die Erfindung bietet insoweit einen besonderen Vorteil, als aufgrund der Spreizung der Federschenkel der Haltefeder durch die in die Fassung eingesetzte Lampe die Rastschenkel umso stärker gegen den Fassungskörper gepreßt werden, je stärker die Lampe die Federschenkel auseinanderspreizt. Federschenkel und Rastschenkel unterstützen sich nämlich in vorteilhafter Weise hinsichtlich ihrer Kraftentfaltung gegenseitig.The invention offers a particular advantage in that, due to the spreading of the spring legs of the retaining spring by the lamp inserted into the socket, the latching legs are pressed the more strongly against the socket body, the more the lamp spreads the spring legs apart. Spring legs and locking legs support each other in an advantageous manner in terms of their power development.
Weiterhin ergibt sich durch das wesentliche Erfindungsmerkmal, wonach die Rastschenkel in axialer Richtung der Federschenkel angeordnet sind, also im jeweils gleichen Umfangsbereich des Zentralstücks, der Vorteil, daß axial gerichtete Zugkräfte an der Lampe unmittelbar in die Rastschenkel übergeleitet werden, so daß dabei ein Durchbiegen des Zentralstücks ausgeschlossen und die Verbindung am Fassungskörper somit besonders fest und stabil ist.Furthermore, the essential feature of the invention, according to which the locking legs are arranged in the axial direction of the spring legs, that is to say in the same circumferential area of the central piece, has the advantage that axially directed tensile forces on the lamp are transmitted directly into the locking legs, so that in the process bending of the central piece is excluded and the connection on the socket body is therefore particularly strong and stable.
Zu erwähnen ist noch eine weitere, gleichfalls offenkundig vorbenutzte Halogenlampen-Fassung, bei der auch schon eine separat von außen an den Fassungskörper ansteckbare Haltefeder vorgesehen ist, die ebenfalls ein ringförmiges Zentralstück aufweist, von denen sich zur einen Seite hin die beiden Federschenkel und zur anderen Seite hin die beiden Rastschenkel erstrecken. Allerdings liegen hier Federschenkel und Rastschenkel nicht in demselben schmalen Umfangsbereich, also nicht gewissermaßen 'in Linie', sondern sie sind paarig um jeweils etwa 90o zueinander versetzt. Deshalb hat das Spreizen oder Zusammendrücken der Federschenkel und/oder der Rastschenkel keinerlei günstigen Einfluß auf eine optimale Kraftentfaltung. Hier können sich die Kraftwirkungen gegenseitig nicht ergänzen. Ein etwa loser, zum Wackeln neigender Sitz der Rastschenkel am Fassungskörper wird auch nach dem Einstecken der Lampe zwischen die Federschenkel nicht verbessert. Bei Zug an der Lampe übertragen sich die Zugkräfte zunächst auf das Zentralstück, ehe sie von dort in die Rastschenkel eingeleitet werden. Dies hat in nachteiliger Weise zur Folge, daß solche Zugkräfte zum Durchbiegen des Zentralstücks führen. Außerdem läßt sich die Haltefeder auch nicht auf die aus der Erfindung resultierende einfache Art und Weise montieren und noch schwieriger wieder vom Fassungskörper abnehmen.Also worth mentioning is another halogen lamp socket that is also obviously used, in which a retaining spring that can be plugged in separately from the outside of the socket body is also provided, which also has an annular central piece, of which the two spring legs are on one side and the other Extend the two locking legs towards the side. However, the spring legs and locking legs are not in the same narrow circumferential area, that is to say not 'in line' to a certain extent, but are offset in pairs by about 90 ° each. Therefore, the spreading or compression of the spring legs and / or the latching legs has no favorable influence on optimal power delivery. Here the effects of forces cannot complement each other. An approximately loose, wobbling seat of the locking legs on the socket body is not improved even after inserting the lamp between the spring legs. When pulling on the lamp, the tensile forces are first transferred to the central piece before they are introduced from there into the locking legs. This has the disadvantageous consequence that such tensile forces lead to the deflection of the central piece. In addition, the retaining spring can also not be assembled in the simple manner resulting from the invention and can be removed again from the socket body with even greater difficulty.
Von besonderer Bedeutung ist ein weiteres Merkmal der Erfindung mit selbständiger Bedeutung, welches darin besteht, daß das ringförmige Zentralstück unter Belassung des Materials für die Rastschenkel aus einem Materialstreifen ausgeschnitten ist und daß durch im wesentlichen sekantial gerichtete Einschnitte die Länge der Rastzungen und ihre Anbindung an den Peripheriebereich des Zentralstücks festgelegt ist. Durch diese besondere Schnittführung beim Ausstanzen der Haltefeder aus dem Blech-Materialstreifen wird ungewöhnlich sparsam mit dem Ausgangswerkstoff umgegangen. Zur Ausbildung der Rastzungen wird in vollem Umfange nur von demjenigen Abschnitt des Materialstreifens Gebrauch gemacht, aus dem der zentrale Durchbruch des ringförmigen Zentralstücks gefertigt wird. Dadurch fällt äußerst wenig Schnittabfall an, und der Blechstreifen, aus dem die Haltefeder erzeugt wird, kann sehr schmal sein. Bei dem zuletzt in Bezug genommenen Stand der Technik erstrecken sich demgegenüber bezüglich des ringförmigen Zentralstücks alle vier Schenkel, nämlich die zwei Federschenkel und die zwei Rastschenkel, in vier unterschiedliche Richtungen strahlenförmig nach außen. Die mittige Öffnung des ringförmigen Zentralstücks wird als solche vollständig ausgeschnitten. Zwischen den strahlenförmig nach außen weisenden Fortsätzen ergeben sich große Abfallstücke, und der Ausgangs-Blechstreifen, aus dem der Rohling ausgestanzt wird, muß erheblich breiter sein.Of particular importance is another feature of the invention with independent meaning, which consists in that the annular central piece is cut out of a strip of material while leaving the material for the locking legs and that the length of the locking tongues and their connection to the peripheral area of the central piece is defined by essentially secant incisions. This special cut when punching out the retaining spring from the sheet material strip means that the starting material is used exceptionally sparingly. To form the locking tongues, use is made in full only of that section of the material strip from which the central opening of the annular central piece is made. As a result, there is extremely little waste of cut and the sheet metal strip from which the retaining spring is produced can be very narrow. In the last prior art referred to, on the other hand, all four legs, namely the two spring legs and the two latching legs, extend radially outward in four different directions with respect to the annular central piece. As such, the central opening of the annular central piece is completely cut out. Large pieces of waste result between the radially outward-pointing extensions, and the starting sheet metal strip from which the blank is punched out must be considerably wider.
Zusätzliche vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung sind Gegenstand der nicht zitierten Unteransprüche. Im übrigen wird die Erfindung insgesamt aus der nachfolgenden ausführlichen Erläuterung eines in den Zeichnungen dargestellten Ausführungsbeispiels besonders deutlich. In den Zeichnungen zeigen jeweils etwa im Maßstab 2:1
- Fig. 1
- eine Explosionsdarstellung einer Lampenfassung mit einer von außen daran ansteckbaren Haltefeder,
- Fig. 2
- die beiden Teile aus Fig. 1 im zusammengesteckten Zustand,
- Fig. 3
- eine Aufsicht auf die Anordnung der Fig. 2 und
- Fig. 4
- eine Aufsicht auf das ausgestanzte Halbzeug für die Haltefeder bzw. eine Abwicklung derselben.
- Fig. 1
- 2 shows an exploded view of a lamp holder with a retaining spring that can be attached to it from the outside,
- Fig. 2
- the two parts of Fig. 1 in the assembled state,
- Fig. 3
- a supervision of the arrangement of FIGS. 2 and
- Fig. 4
- a supervision of the punched-out semifinished product for the retaining spring or a settlement thereof.
Eine insgesamt mit 10 bezeichnete Lampenfassung umfaßt einen Fassungskörper 11 und eine damit verrastbaren Haltefeder 12. Eine solche Fassung dient insbesondere zur Aufnahme von Halogen-Reflektorlampen, also Niedervoltlampen mit einem Sockel und einem fest daran angebrachten Reflektor.A lamp socket, designated overall by 10, comprises a
Der Fassungskörper 11, der aus Isoliermaterial, vornehmlich Kunststoff oder Porzellan besteht, beinhaltet nicht gezeigte Anschlußklemmen zum schraubenlosen Steckanschluß abisolierter Leiterenden einerseits und zur elektrischen Verbindung der ebenfalls nicht gezeigten Lampenkontaktstifte andererseits, für die Einstecköffnungen 13 auf der Vorder- oder Oberseite des Fassungskörpers 11 vorgesehen sind.The
Der Fassungskörper weist bezüglich den Einstecköffnungen 12 umfangsmäßig versetzte Durchgangslöcher 14 für Befestigungsmittel wie Nieten oder Schrauben auf, mittels derer der Fassungskörper 11 an einem Fassungsträger wie Leuchtenblech od.dgl. befestigt wird.The socket body has through
Zur Halterung der mit den Kontaktstiften in die Fassung eingesteckten Lampe dient die Haltefeder 12. Sie weist ein ringförmiges Zentralstück 15 auf, zu dessen einer Seite sich, paarbildend einander gegenüberliegend, Federschenkel 16 erstrecken. Sie weisen jeweils eine im wesentlichen V- oder Z-förmige Ausformung 17 auf, die in eine dazu an den Seiten der Lampenfassung vorgesehene Rille ein- oder an einer entsprechenden Wulst angreift.The retaining
Im gleichen Umfangsbereich des ringförmigen Zentralstücks 15, in dem die Federschenkel 17 angeordnet sind, sind auch Rastschenkel 18 vorgesehen, die sich jedoch in die entgegengesetzte Richtung erstrecken. Jeder der Rastschenkel 18 weist an seinem freien Ende einen um etwa 90o nach einwärts umgebogenen Rasthaken 19 auf, der dazu bestimmt ist, eine Anschlagfläche 20 an der Außenseite des Fassungskörpers 11 zu untergreifen.In the same circumferential area of the annular
Wie man sich bei Betrachtung der Fig. 1 leicht vorstellen kann, bildet die Haltefeder 12 aufgrund der beschriebenen und dargestellten Geometrie eine Doppelschenkel-Klammer aus, deren Prinzip in etwa mit dem einer Wäscheklammer vergleichbar ist. Das ringförmige Zentralstück 15, an dessen Peripherie 21 alle vier Zungen 16 und 18 wurzeln, bildet eine Biegefeder aus mit dem Effekt, daß, wenn die Federschenkel 16 aufeinanderzu bewegt werden, sich die Rastschenkel 18 spreizen und umgekehrt. Deshalb ist es sehr einfach, die Haltefeder 12 auf die bereits montierte Lampenfassung 11 aufzusetzen. Hierzu drückt man die beiden Federschenkel 16 zusammen und setzt die Haltefeder auf den Fassungskörper, bis das ringförmige Zentralstück 15 auf ihm aufsitzt. Dann läßt man die Federschenkel 16 los, und die Verkrallung der Rasthaken 19 an den Schultern 20 des Fassungskörpers 11 erfolgt selbsttätig.As can be easily imagined when looking at FIG. 1, the retaining
Andererseits hat die Klammerkonfiguration aber auch den erheblichen Vorteil, daß, wenn aufgrund der zwischen den Federschenkeln 16 befindlichen Lampe eine Spreizung der federschenkel 16 erfolgt, die Rastschenkel 18 mit verstärkter Kraft gegen die Fassung 11 gedrückt werden, die Anordnung der Haltefeder 12 folglich am Fassungskörper 11 automatisch verstärkend selbstsichernd ist.On the other hand, the clamp configuration also has the considerable advantage that if the
Fig. 4 zeigt die Haltefeder 12 in Abwicklung bzw. deren noch ebenen Rohstanzling vor dem Umformen in die aus den übrigen Figuren ersichtliche konkrete Form. Zur sicheren Identifikation sind diejenigen Abschnitte bzw. Teile des Zuschnitts 22 in Fig. 4 mit denselben Bezugsziffern versehen wie die der fertigen Haltefeder 12.Fig. 4 shows the retaining
Eine erfindungswesentliche weitere Besonderheit der dargestellten Ausführungsform besteht ferner darin, daß die Rastschenkel 18 mit ihren Rasthaken 19 vollkommen in diejenige Fläche integriert sind, aus der der Durchbruch des ringförmigen Zentralstücks 15 ausgestanzt wird. Während beim Stand der Technik dort eine Platine in voller Kreisflächenform ausgestanzt wird, berücksichtigt der hier sehr viel sparsamere Stanzschnitt am selben Ort bereits die Form für Rastschenkel 18 und Rasthaken 19, indem er diese im Material des Blechstreifens stehen läßt.Another essential feature of the embodiment shown, which is essential to the invention, is that the latching
Um trotz der beengten räumlichen Verhältnisse innerhalb des Zuschnitts 22 recht lange Rastschenkel 18 erhalten zu können, und um diese gleichzeitig im wesentlichen an der Peripherie 21 des ringförmigen Zentralstücks 15 anzubinden, sind die jeweils paarigen, etwa sekantial verlaufende Einschnitte 25 vorgesehen.In order to be able to obtain locking
Eine weitere Besonderheit ist die, daß die freien Enden der Rastschenkel 18, also insbesondere die Anordnung der Rasthaken 19, bezüglich der Längsmittelebene 25 außermittig, jedoch spiegelbildlich im Sinne einer Drehasymmetrie angeordnet sind. Sie können deshalb einander im Zuschnitt überlappen. Durch diese geschickte Führung der Stanzschnitte kann die Länge der Rastschenkel 18 insgesamt zusätzlich vergrößert werden.Another special feature is that the free ends of the latching
Claims (5)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19545194 | 1995-12-05 | ||
| DE19545194A DE19545194C1 (en) | 1995-12-05 | 1995-12-05 | Lamp holder, in particular for halogen lamps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0778640A1 true EP0778640A1 (en) | 1997-06-11 |
| EP0778640B1 EP0778640B1 (en) | 2000-01-19 |
Family
ID=7779145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96116007A Expired - Lifetime EP0778640B1 (en) | 1995-12-05 | 1996-10-07 | Lampholder, especially for halogen lamps |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0778640B1 (en) |
| AT (1) | ATE189085T1 (en) |
| DE (2) | DE19545194C1 (en) |
| DK (1) | DK0778640T3 (en) |
| ES (1) | ES2143696T3 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004113790A3 (en) * | 2003-06-24 | 2005-03-10 | E M C Colosio S R L | Lamp holder and method for manufacturing the same |
| WO2005093774A3 (en) * | 2004-03-22 | 2006-03-02 | Koninkl Philips Electronics Nv | Assembly of a capped high-pressure discharge lamp and a lamp holder |
| CN103672769A (en) * | 2013-11-30 | 2014-03-26 | 四川格兰德科技有限公司 | Fastening piece of LED lamp |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19732329C1 (en) * | 1997-07-28 | 1999-04-29 | Murjahn Kg Vlm | Lamp socket for low voltage lamp |
| DE10011250C2 (en) * | 2000-03-08 | 2002-01-10 | Bjb Gmbh & Co Kg | Connection device with a holder for a halogen lamp on so-called low-voltage pole or cable systems |
| DE10305647B4 (en) * | 2003-02-12 | 2004-12-30 | Vossloh-Schwabe Gmbh | Socket for electrical equipment |
| DE102010032837B4 (en) | 2010-07-30 | 2013-03-28 | Dieter Mayer | Holder for a lamp with plug socket, in particular for halogen reflector lamps and / or LED bulbs |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE399829A (en) * | ||||
| DE2848004A1 (en) * | 1978-11-06 | 1980-05-08 | Bender & Wirth | Socket for glass cap halogen lamp - has case with two springy strips with bent ends snapping into recesses in chamfered sides of cap |
| GB2153986A (en) * | 1984-02-11 | 1985-08-29 | Emi Plc Thorn | Improvements in lamps and lamp holders for display lighting |
| EP0478077A1 (en) * | 1990-09-28 | 1992-04-01 | Koninklijke Philips Electronics N.V. | Lampholder for a high-pressure gas discharge lamp |
| US5376025A (en) * | 1991-07-24 | 1994-12-27 | Bender & Wirth Gmbh & Co. | Fixture for halogen lamps |
| DE4334722A1 (en) * | 1993-10-12 | 1995-04-13 | Bosch Gmbh Robert | Electrical contacting of a light source |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9304477U1 (en) * | 1993-03-22 | 1993-06-24 | Fa. August Gärtner, 1000 Berlin | Light element |
-
1995
- 1995-12-05 DE DE19545194A patent/DE19545194C1/en not_active Expired - Fee Related
-
1996
- 1996-10-07 DE DE59604225T patent/DE59604225D1/en not_active Expired - Lifetime
- 1996-10-07 AT AT96116007T patent/ATE189085T1/en not_active IP Right Cessation
- 1996-10-07 DK DK96116007T patent/DK0778640T3/en active
- 1996-10-07 EP EP96116007A patent/EP0778640B1/en not_active Expired - Lifetime
- 1996-10-07 ES ES96116007T patent/ES2143696T3/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE399829A (en) * | ||||
| DE2848004A1 (en) * | 1978-11-06 | 1980-05-08 | Bender & Wirth | Socket for glass cap halogen lamp - has case with two springy strips with bent ends snapping into recesses in chamfered sides of cap |
| GB2153986A (en) * | 1984-02-11 | 1985-08-29 | Emi Plc Thorn | Improvements in lamps and lamp holders for display lighting |
| EP0478077A1 (en) * | 1990-09-28 | 1992-04-01 | Koninklijke Philips Electronics N.V. | Lampholder for a high-pressure gas discharge lamp |
| US5376025A (en) * | 1991-07-24 | 1994-12-27 | Bender & Wirth Gmbh & Co. | Fixture for halogen lamps |
| DE4334722A1 (en) * | 1993-10-12 | 1995-04-13 | Bosch Gmbh Robert | Electrical contacting of a light source |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004113790A3 (en) * | 2003-06-24 | 2005-03-10 | E M C Colosio S R L | Lamp holder and method for manufacturing the same |
| CN100470121C (en) * | 2003-06-24 | 2009-03-18 | E.M.C.科洛西奥有限公司 | Lamp socket and manufacturing method thereof |
| WO2005093774A3 (en) * | 2004-03-22 | 2006-03-02 | Koninkl Philips Electronics Nv | Assembly of a capped high-pressure discharge lamp and a lamp holder |
| US7602112B2 (en) | 2004-03-22 | 2009-10-13 | Koninklijke Philips Electronics N.V. | Assembly of a capped high-pressure discharge lamp and a lamp holder |
| CN1969358B (en) * | 2004-03-22 | 2012-02-29 | 皇家飞利浦电子股份有限公司 | Assembly of a capped high-pressure discharge lamp and a lamp holder |
| CN103672769A (en) * | 2013-11-30 | 2014-03-26 | 四川格兰德科技有限公司 | Fastening piece of LED lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0778640B1 (en) | 2000-01-19 |
| DK0778640T3 (en) | 2000-05-01 |
| ES2143696T3 (en) | 2000-05-16 |
| ATE189085T1 (en) | 2000-02-15 |
| DE19545194C1 (en) | 1997-04-24 |
| DE59604225D1 (en) | 2000-02-24 |
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