EP0676586A1 - Pendant lighting fixture with carrier cable driving mechanism - Google Patents

Pendant lighting fixture with carrier cable driving mechanism Download PDF

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Publication number
EP0676586A1
EP0676586A1 EP95105076A EP95105076A EP0676586A1 EP 0676586 A1 EP0676586 A1 EP 0676586A1 EP 95105076 A EP95105076 A EP 95105076A EP 95105076 A EP95105076 A EP 95105076A EP 0676586 A1 EP0676586 A1 EP 0676586A1
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EP
European Patent Office
Prior art keywords
drum
traction means
lamp according
traction
pendant lamp
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Granted
Application number
EP95105076A
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German (de)
French (fr)
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EP0676586B1 (en
Inventor
Andreas Wilke
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Individual
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/44—Constructional details
    • B65H75/4402—Guiding arrangements to control paying-out and re-storing of the material
    • B65H75/4405—Traversing devices; means for orderly arranging the material on the drum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V27/00—Cable-stowing arrangements structurally associated with lighting devices, e.g. reels 

Definitions

  • the invention relates to a pendant lamp with traction drive according to the preamble of claim 1.
  • Pendant lights with traction drive enable the adjustment of different heights of their lights by means of a mechanism arranged in the suspension of the traction device.
  • this is preferably a spring mechanism in which the drum axis is connected to a spiral spring in such a way that the drum winds up the spring when the traction means is unwound, e.g. a brake acting via a freewheel engages as soon as the tensile force required to pull the spring ceases. This brake could then be released when the pull is pulled again, whereby the traction means is then wound onto the drum by the force of the spring.
  • the pendant lamp can also be adjusted so that the weight of the free end of the traction device and the lamp attached to it is sufficient to hold the lamp in a predetermined position, but winds up the traction device when the lamp is raised.
  • textile sheathed and therefore relatively thick and soft cable can be used as the traction means.
  • the invention is preferably applicable to cables which correspond to the modern standard and have a homogeneous sheath, preferably made of plastic, which better protects the cable against wear, but more or less reduces its flexibility.
  • Such traction means are usually also thinner than textile covered cable.
  • traction means are also suitable for the invention, which are not used as electrical leads, but rather interact with an electrical lead, which is usually made of a plastic-coated cable, in which the cable surrounds the traction means as a spiral with preformed turns.
  • the traction means which can be used for the reeling and unwinding mechanisms designed according to the invention, in particular as described above, have hitherto been the least suitable if they have a comparatively thin but stiff, i.e. represent inflexible, in cross-section essentially cylindrical structure, which applies mainly to the plastic-coated cable described. It then turns out that the mechanics, i.e. especially when pulling the traction device from the drum when lowering the lamp runs increasingly rough and bumpy. As a result, the ease of use of the pendant lamp suffers considerably and the mechanism often fails, which must then be straightened out by untangling the traction mechanism on the drum, which is often impossible for laypersons. Such disadvantages, albeit less frequently, also occur when the lamp is raised while the traction means is being wound onto the drum.
  • a slope downforce is generated by the conical shell of the drum from the lacing tension resulting from the winding of the traction device on the drum, which moves the envelopes of the traction device around the drum along the inclination of the drum casing until they touch the already fixed envelope of the traction device come to a standstill.
  • This movement of the envelopes following the direction of the downhill force is deliberate and is chosen by coordinating their main influencing variables with one another such that the many envelopes on the drum are all close and evenly against one another.
  • adjacent envelopes of the traction device can no longer overlap or even one below the other. This eliminates the rough and bumpy running of the mechanics and foams the traction mechanism. In particular when pulling down the lamp and pulling the traction device from the drum, this increases the ease of use significantly and prevents the failure of the mechanics due to irregular wrapping of the traction device around the drum.
  • the invention has the advantage that it can achieve these advantageous effects regardless of the type of traction device and its structure, and in particular can thus use the desired plastic cable as a traction device despite its inflexibility, without the ease of use of the mechanics suffering.
  • the invention is also suitable for traction means which are separated from the actual supply cable as described at the beginning.
  • the invention is preferably implemented with the features of claim 3 in order to meet the modern standard in such pendant lights.
  • the invention also has the result that, because of the conical drum shell, the envelopes around the small drum diameter store shorter traction means lengths than the envelopes around the larger drum diameter. Since superimposed envelopes of the traction means should also be avoided with the conical drum jackets according to the invention in the interest of a smooth rolling mechanism, but on the other hand should keep the size of the drum small, because the drums are otherwise difficult to accommodate in the ceiling mounting of pendant lights, the embodiment according to claim 4 often preferable. This is because the larger drum diameter continued in the cylindrical part of the drum. Its axial length should, however, only be small in order to prevent skipping of traction material envelopes. The features of claim 5 are provided for such embodiments.
  • the actual lamp with lamp is not shown in the drawings.
  • the power supply to the lamp takes place through the traction means 1 (FIG. 1), which is designed as a relatively inflexible plastic-coated cable.
  • a traction mechanism drive generally designated 2
  • a housing 4 which is covered with a canopy 5, serves to hold the drive 2 and drum 3.
  • the supply line 6 lies within the canopy and is connected with a cable clamp, not shown.
  • the housing has in the lower, i.e. from the ceiling 7a area on a closed funnel 7, through the larger opening 8, the feed line 1 is inserted.
  • the smaller opening 9, from which the traction device 1 exits, guides the traction device, i.e. it directs the canopy tip onto the drum regardless of the direction of pull, which is indicated in FIG. 4 by an arrow 10.
  • the drum 3 has a conical jacket 11 and is designed as a solid molded body according to FIG. 5. 5, the angle of inclination of the drum shell 11 is 30 degrees.
  • the traction means guide 9 lies below the last traction means envelope 12 in FIG. 2
  • the surface of the plastic cable 11, like the surface of the drum jacket, is smooth and coordinated with the inclination angle of 30 degrees of the drum jacket 11 and the arrangement of the traction means guide 9 in such a way that the envelopes 12 to 17 each lie on the drum bevel 18 with the neighboring envelope, as shown in FIG 2 emerges.
  • the drum shell 11 is cylindro-conical, i.e. a cylindrical casing section 19 adjoins the drum bevel 18 (FIG. 1).
  • the cylindrical part 19 of the drum shell 11 has only a small axial length and can accommodate at most one traction means envelope which is formed by the envelope 12.
  • the drum shell is formed between an annular flange 20, 21 of the drum 3.
  • the traction means is guided onto the drum immediately next to the ring flange 20, which is assigned to the jacket end with the smaller diameter, as shown at 22 in FIG. 5.
  • the upper end of the traction means 23 of the drum is wound around the inner cylinder 25 of the drum 3 with several envelopes, as shown at 24 in FIG.
  • This inner cylinder surrounds the drum axis 26 ', around which the drum can rotate freely, as a sleeve.
  • the traction means ends at 23 on sliding contacts 26, 27, which in turn run on a stationary contact disk 28.
  • the sliding contacts 26 and 27 and the contact disc 28 are in a socket 29 for which the cylindrical and the subsequent conical part of the drum 3 are recessed at 30.
  • the cylindrical section of the bushing 29 which is led out of the drum 3 is designated 31 in FIG. 3 and represents the work coil for a spiral spring (roller spring) which can roll up and down on the coil 31.
  • a supply spool 32 is provided for this purpose.
  • a diameter-enlarged section 33 of the coil contains the parts of a freewheel that can be seen in FIG. 5.
  • a rolling brake can be set for determining the pulling force of the traction device. If the traction means is pulled out in the direction of arrow 10, the spring winds up on the work spool 31 and from the supply spool 32. As soon as the envelopes 12 to 17 have been unwound from the drum, the drum comes to a standstill when the cable bushing 22 is reached. The brake housed in section 33 outside the freewheel then engages and holds the drum against the spring tension. When the lamp is raised, the drum pulls the traction device 10 through the guide 9 upwards, resulting in envelopes 12 to 17 around the drum jacket, of which the drum jacket envelope 17 contains the smallest and the drum envelope 12 contains the largest traction device length. The winding takes place in the representation of the figures from right to left.

Abstract

The light has a drum with a cylindrical-conical casing. The tilt angle of the drum's casing, and the arrangement of the pulley guide match the surface smoothness of the pulley that the covers rest against the adjacent cover, when the pulley is wound onto the drum's bevel. The drum casing is formed between the drum's annular flanges. The top end (23) of the pulley is wound round the drum's inner cylinder (25) and ends on the slide contacts (26,27) running on a stationary contact disc (28). <IMAGE>

Description

Die Erfindung betrifft eine Pendelleuchte mit Zugmittelantrieb gemäß dem Oberbegriff des Anspruches 1.The invention relates to a pendant lamp with traction drive according to the preamble of claim 1.

Pendelleuchten mit Zugmittelantrieb ermöglichen die Einstellung verschiedener Höhen ihrer Leuchten durch eine in der Aufhängung des Zugmittels angeordnete Mechanik. Erfindungsgemäß handelt es sich hierbei bevorzugt um ein Federwerk, bei dem die Trommelachse mit einer Spiralfeder derart verbunden ist, daß beim Abwickeln des Zugmittels die Trommel die Feder aufzieht, wobei z.B. eine über einen Freilauf wirkende Bremse einfällt, sobald die zum Aufziehen der Feder notwendige Zugkraft aufhört. Diese Bremse ließe sich dann lösen, wenn erneut gezogen wird, wodurch sich dann das Zugmittel durch die Kraft der Feder auf die Trommel aufwickelt. Die Pendelleuchte läßt sich aber auch so einstellen, daß das Gewicht des freien Endes des Zugmittels und der daran hängenden Leuchte ausreicht, um die Leuchte in einer vorgegebenen Position zu halten, aber das Zugmittel aufwickelt, wenn die Leuchte angehoben wird.Pendant lights with traction drive enable the adjustment of different heights of their lights by means of a mechanism arranged in the suspension of the traction device. According to the invention, this is preferably a spring mechanism in which the drum axis is connected to a spiral spring in such a way that the drum winds up the spring when the traction means is unwound, e.g. a brake acting via a freewheel engages as soon as the tensile force required to pull the spring ceases. This brake could then be released when the pull is pulled again, whereby the traction means is then wound onto the drum by the force of the spring. The pendant lamp can also be adjusted so that the weight of the free end of the traction device and the lamp attached to it is sufficient to hold the lamp in a predetermined position, but winds up the traction device when the lamp is raised.

Als Zugmittel kann erfindungsgemäß Textil ummanteltes und deswegen relativ dickes und weiches Kabel verwendet werden. Vorzugsweise ist die Erfindung jedoch auf Kabel anwendbar, die dem modernen Standard entsprechen und einen homogenen, vorzugsweise aus Kunststoff gefertigten Mantel aufweisen, der das Kabel gegen Verschleiß besser schützt, jedoch dessen Flexibilität mehr oder weniger stark herabsetzt. Solche Zugmittel sind in der Regel auch dünner als Textil ummantelte Leitungskabel. Für die Erfindung eignen sich letztlich auch Zugmittel, welche nicht als elektrische Zuleitungen verwendet werden, sondern mit einer meistens aus einem Kunststoff ummantelten Kabel bestehenden elektrischen Zuleitung zusammenwirken, bei der das Kabel mit vorgeformten Windungen das Zugmittel als Spirale umgibt.According to the invention, textile sheathed and therefore relatively thick and soft cable can be used as the traction means. However, the invention is preferably applicable to cables which correspond to the modern standard and have a homogeneous sheath, preferably made of plastic, which better protects the cable against wear, but more or less reduces its flexibility. Such traction means are usually also thinner than textile covered cable. In the end, traction means are also suitable for the invention, which are not used as electrical leads, but rather interact with an electrical lead, which is usually made of a plastic-coated cable, in which the cable surrounds the traction means as a spiral with preformed turns.

In der Praxis zeigt sich, daß bislang die für die erfindungsgemäß, insbesondere wie oben beschrieben ausgebildeten Aufroll- und Abrollmechaniken benutzbaren Zugmittel am wenigsten geeignet sind, wenn sie ein vergleichsweise dünnes, aber steifes, d.h. unflexibles, im Querschnitt im wesentlichen zylindrisches Gebilde darstellen, was hauptsächlich auf die beschriebenen Kunststoff ummantelten Leitungskabel zutrifft. Es zeigt sich dann, daß die Mechanik, d.h. insbesondere beim Abziehen des Zugmittels von der Trommel beim Absenken der Leuchte zunehmend rauher und holpriger läuft. Dadurch leidet der Bedienungskomfort der Pendelleuchte erheblich und nicht selten versagt die Mechanik, die dann durch Entwirren des Zugmittels auf der Trommel wieder in Ordnung gebracht werden muß, was Laien häufig unmöglich ist. Solche Nachteile treten, wenn auch weniger häufig, auch beim Anheben der Leuchte während des Aufwickelns des Zugmittels auf die Trommel auf.In practice, it has been shown that the traction means which can be used for the reeling and unwinding mechanisms designed according to the invention, in particular as described above, have hitherto been the least suitable if they have a comparatively thin but stiff, i.e. represent inflexible, in cross-section essentially cylindrical structure, which applies mainly to the plastic-coated cable described. It then turns out that the mechanics, i.e. especially when pulling the traction device from the drum when lowering the lamp runs increasingly rough and bumpy. As a result, the ease of use of the pendant lamp suffers considerably and the mechanism often fails, which must then be straightened out by untangling the traction mechanism on the drum, which is often impossible for laypersons. Such disadvantages, albeit less frequently, also occur when the lamp is raised while the traction means is being wound onto the drum.

Die Erfindung geht demgegenüber einen anderen Weg, dessen Grundgedanke im Anspruch 1 wiedergegeben ist. Weitere Merkmale der Erfindung ergeben sich aus den Unteransprüchen.In contrast, the invention takes a different path, the basic idea of which is given in claim 1. Further features of the invention emerge from the subclaims.

Gemäß der Erfindung wird durch den konischen Mantel der Trommel aus der sich beim Aufwickeln des Zugmittels auf der Trommel ergebenden Schnürspannung eine Hangabtriebskraft erzeugt, die die Umschläge des Zugmittels um die Trommel entlang der Neigung des Trommelmantels bewegt, bis sie an dem bereits festliegenden Umschlag des Zugmittels zum Stillstand kommen. Diese der Richtung der Hangabtriebskraft folgende Bewegung der Umschläge ist gewollt und wird durch die Abstimmung ihrer Haupteinflußgrößen aufeinander so gewählt, daß die vielen Umschläge auf der Trommel sich sämtlich eng und gleichmäßig aneinanderlegen. Das hat zur Folge, daß benachbarte Umschläge des Zugmittels sich nicht mehr über- oder gar untereinanderlegen können. Dadurch werden der rauhe und holprige Lauf der Mechanik beseitigt und das Zugmittel geschoht. Insbesondere beim Herabziehen der Leuchte und Abziehen des Zugmittels von der Trommel erhöht sich dadurch der Bedienungskomfort wesentlich und verhindert das Versagen der Mechanik infolge unregelmäßiger Umschläge des Zugmittels um die Trommel.According to the invention, a slope downforce is generated by the conical shell of the drum from the lacing tension resulting from the winding of the traction device on the drum, which moves the envelopes of the traction device around the drum along the inclination of the drum casing until they touch the already fixed envelope of the traction device come to a standstill. This movement of the envelopes following the direction of the downhill force is deliberate and is chosen by coordinating their main influencing variables with one another such that the many envelopes on the drum are all close and evenly against one another. The result of this is that adjacent envelopes of the traction device can no longer overlap or even one below the other. This eliminates the rough and bumpy running of the mechanics and foams the traction mechanism. In particular when pulling down the lamp and pulling the traction device from the drum, this increases the ease of use significantly and prevents the failure of the mechanics due to irregular wrapping of the traction device around the drum.

Die Erfindung hat den Vorteil, daß sie diese vorteilhaften Wirkungen unabhängig von der Art des Zugmittels und seines Aufbaus erzielen und dadurch insbesondere die gewünschten Kunststoffkabel als Zugmittel trotz ihrer Unflexibilität verwenden kann, ohne daß der Bedienungskomfort der Mechanik leidet.The invention has the advantage that it can achieve these advantageous effects regardless of the type of traction device and its structure, and in particular can thus use the desired plastic cable as a traction device despite its inflexibility, without the ease of use of the mechanics suffering.

Während sich bei den herkömmlichen textilummantelten Zugmitteln die beschriebene Bewegung der Umschläge des Zugmittels auf der Trommel in der Regel dadurch vollzieht, daß sich das Kabel um sich selbst dreht und auf dem Trommelmantel abrollt, ist das bei der von der Erfindung bevorzugten Verwendung der Kunststoffkabel wegen deren Unflexibilität nicht der Fall. Dennoch kann die Erfindung mit ihren Vorteilen auch mit solchen Zugmitteln verwirklicht werden, was Gegenstand des Anspruches 2 ist. Infolge der vorstehend beschriebenen Abstimmung der Haupteinflußgrößen aufeinander und der durch die Zugmittelführung gewährleisteten Ausrichtung des Zugmittels vor der Trommel gleiten die Umschläge des Zugmittels auf der Trommelschräge jeweils bis zur Anlage an den Nachbarumschlag. Dieses Abrutschen geschieht im wesentlichen ohne Drehung des Zugmittels um seine Längsachse, was im Ergebnis ebenfalls den Bedienungskomfort erhöht.While in the conventional textile-coated traction means the described movement of the envelopes of the traction means on the drum generally takes place in that the cable rotates around itself and rolls on the drum shell this is not the case with the use of the plastic cable preferred by the invention because of its inflexibility. Nevertheless, the advantages of the invention can also be realized with such traction means, which is the subject of claim 2. As a result of the above-described coordination of the main influencing variables with one another and the alignment of the traction means in front of the drum ensured by the traction means guide, the envelopes of the traction means slide on the drum slope until they rest against the neighboring envelope. This slipping occurs essentially without rotation of the traction device about its longitudinal axis, which also increases the ease of use as a result.

Die Erfindung eignet sich in dieser Ausführungsform auch für solche Zugmittel, die von dem eigentlichen Zuleitungskabel wie eingangs beschrieben getrennt sind. Bevorzugt wird die Erfindung jedoch mit den Merkmalen des Anspruches 3 verwirklicht, um dem modernen Standard bei derartigen Pendelleuchten zu entsprechen.In this embodiment, the invention is also suitable for traction means which are separated from the actual supply cable as described at the beginning. However, the invention is preferably implemented with the features of claim 3 in order to meet the modern standard in such pendant lights.

Die Erfindung hat auch zur Folge, daß wegen des konischen Trommelmantels die Umschläge um die kleinen Trommeldurchmesser geringere Zugmittellängen speichern als die Umschläge um die größeren Trommeldurchmesser. Da man übereinanderliegende Umschläge des Zugmittels auch bei den erfindungsgemäß konischen Trommelmänteln im Interesse einer leichtgängigen Aufrollmechanik vermeiden, andererseits aber die Baugröße der Trommel gering halten sollte, weil sich die Trommeln sonst nur schwer in der Deckenmontierung von Pendelleuchten unterbringen lassen, ist die Ausführungsform nach Anspruch 4 vielfach vorzuziehen. Hierbei wird nämlich der größere Trommeldurchmesser im zylindrischen Teil der Trommel fortgesetzt. Dessen axiale Länge sollte indessen nur gering sein, um ein Überspringen von Zugmittelumschlägen zu verhindern. Für solche Ausführungsformen sind die Merkmale des Anspruches 5 vorgesehen.The invention also has the result that, because of the conical drum shell, the envelopes around the small drum diameter store shorter traction means lengths than the envelopes around the larger drum diameter. Since superimposed envelopes of the traction means should also be avoided with the conical drum jackets according to the invention in the interest of a smooth rolling mechanism, but on the other hand should keep the size of the drum small, because the drums are otherwise difficult to accommodate in the ceiling mounting of pendant lights, the embodiment according to claim 4 often preferable. This is because the larger drum diameter continued in the cylindrical part of the drum. Its axial length should, however, only be small in order to prevent skipping of traction material envelopes. The features of claim 5 are provided for such embodiments.

Wenn die volle axiale Länge des Trommelmantels zum Aufwickeln des Zugmittels ausgenutzt werden soll, was unter den vorgenannten Gesichtspunkten zweckmäßig ist, muß für den ersten Umschlag des Zugmittels auf der Trommel ein Widerstand geschaffen werden, der das Abrollen bzw. Abrutschen des Umschlages von der Trommel vermeidet. Mit den Merkmalen des Anspruches 6 wird eine Ausführungsform geschaffen, bei der dies auf einfache Weise durch einen Ringflansch verhindert wird, der auch am anderen Ende der Trommel vorgesehen werden kann. Dadurch ergibt sich der Vorteil einer vergleichsweise gesteigerten Formfestigkeit der Trommel. Die beste Ausnutzung der Trommellänge ergibt sich mit den Merkmalen des Anspruches 7, weil hierbei bereits der erste Umschlag des Zugmittels am äußeren, d.h. am kleineren Ende des Trommelmantels entsteht.If the full axial length of the drum shell is to be used for winding up the traction means, which is expedient from the above-mentioned points of view, a resistance must be created for the first turn of the traction means on the drum, which prevents the envelope from rolling off or slipping off the drum . With the features of claim 6, an embodiment is created in which this is prevented in a simple manner by an annular flange, which can also be provided at the other end of the drum. This has the advantage of a comparatively increased dimensional stability of the drum. The best use of the drum length results from the features of claim 7, because here the first turn of the traction means on the outer, i.e. arises at the smaller end of the drum shell.

Die Einzelheiten, weiteren Merkmale und andere Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung einer Ausführungsform anhand der Figuren in der Zeichnung; es zeigen

Fig. 1
in Ansicht und teilweise im Schnitt die Deckenmontierung einer Pendelleuchte bei abgewickeltem Zugmittel,
Fig. 2
den Gegenstand der Fig. 1 bei aufgewickeltem Zugmittel,
Fig. 3
im wesentlichen in den Fig. 1 und 2 entsprechender Darstellung das Gehäuse und die Mechanik der Deckenmontierung in Ansicht,
Fig. 4
eine Seitenansicht des Gegenstandes der Fig. 3 und
Fig. 5
einen Schnitt längs der Linie A-B der Fig. 4.
The details, further features and other advantages of the invention result from the following description of an embodiment with reference to the figures in the drawing; show it
Fig. 1
in view and partly in section the ceiling mount of a pendant lamp with the traction device unwound,
Fig. 2
1 with wound traction means,
Fig. 3
1 and 2 corresponding representation of the housing and the mechanics of the ceiling mount essentially in view,
Fig. 4
a side view of the object of FIGS. 3 and
Fig. 5
a section along the line AB of Fig. 4th

Die eigentliche Leuchte mit Lampe ist in den Zeichnungen nicht wiedergegeben. Die Stromzuführung zur Lampe erfolgt durch das Zugmittel 1 (Fig. 1), welches als relativ unflexibles Kunststoff ummanteltes Kabel ausgebildet ist. Für das Zugmittel ist ein allgemein mit 2 bezeichneter Zugmittelantrieb vorgesehen, der teilweise im Inneren einer Trommel 3 untergebracht ist. Zur Halterung von Antrieb 2 und Trommel 3 dient ein Gehäuse 4, welches mit einem Baldachin 5 abgedeckt ist. Die Zuleitung 6 liegt innerhalb des Baldachins und wird mit einer nicht dargestellten Kabelklemme angeschlossen. Das Gehäuse weist im unteren, d.h. von der Decke 7a entfernten Bereich einen geschlossenen Trichter 7 auf, durch dessen größere Öffnung 8 die Zuleitung 1 eingeführt ist. Die kleinere Öffnung 9, aus der das Zugmittel 1 austritt, führt das Zugmittel, d.h. lenkt es unabhängig von der Zugrichtung, die in Fig. 4 durch einen Pfeil 10 angegeben ist, mit der Baldachinspitze auf die Trommel.The actual lamp with lamp is not shown in the drawings. The power supply to the lamp takes place through the traction means 1 (FIG. 1), which is designed as a relatively inflexible plastic-coated cable. A traction mechanism drive, generally designated 2, is provided for the traction device and is partially housed inside a drum 3. A housing 4, which is covered with a canopy 5, serves to hold the drive 2 and drum 3. The supply line 6 lies within the canopy and is connected with a cable clamp, not shown. The housing has in the lower, i.e. from the ceiling 7a area on a closed funnel 7, through the larger opening 8, the feed line 1 is inserted. The smaller opening 9, from which the traction device 1 exits, guides the traction device, i.e. it directs the canopy tip onto the drum regardless of the direction of pull, which is indicated in FIG. 4 by an arrow 10.

Die Trommel 3 weist einen konischen Mantel 11 auf und ist gemäß Fig. 5 als massiver Formkörper ausgebildet. Gemäß dem Ausführungsbeispiel der Fig. 5 beträgt der Neigungswinkel des Trommelmantels 11 30 Grad. Die Zugmittelführung 9 liegt unterhalb des in Fig. 2 letzten Zugmittelumschlages 12. Die Oberfläche des Kunststoffkabels 11 ist ebenso wie die Oberfläche des Trommelmantels glatt und mit dem Neigungswinkel von 30 Grad des Trommelmantels 11 sowie der Anordnung der Zugmittelführung 9 derart abgestimmt, daß sich die Umschläge 12 bis 17 auf der Trommelschräge 18 jeweils dem Nachbarumschlag anlegen, wie aus Fig. 2 hervorgeht.The drum 3 has a conical jacket 11 and is designed as a solid molded body according to FIG. 5. 5, the angle of inclination of the drum shell 11 is 30 degrees. The traction means guide 9 lies below the last traction means envelope 12 in FIG. 2 The surface of the plastic cable 11, like the surface of the drum jacket, is smooth and coordinated with the inclination angle of 30 degrees of the drum jacket 11 and the arrangement of the traction means guide 9 in such a way that the envelopes 12 to 17 each lie on the drum bevel 18 with the neighboring envelope, as shown in FIG 2 emerges.

In der Ausführungsform nach Fig. 3 ist der Trommelmantel 11 zylindro-konisch, d.h. an die Trommelschräge 18 (Fig. 1) schließt sich ein zylindrischer Mantelabschnitt 19 an. Der zylindrische Teil 19 des Trommelmantels 11 hat jedoch nur eine geringe axiale Länge und kann maximal einen Zugmittelumschlag aufnehmen, der von dem Umschlag 12 gebildet wird.In the embodiment according to Fig. 3, the drum shell 11 is cylindro-conical, i.e. a cylindrical casing section 19 adjoins the drum bevel 18 (FIG. 1). However, the cylindrical part 19 of the drum shell 11 has only a small axial length and can accommodate at most one traction means envelope which is formed by the envelope 12.

Im übrigen ist der Trommelmantel zwischen je einem Ringflansch 20, 21 der Trommel 3 ausgebildet.Otherwise, the drum shell is formed between an annular flange 20, 21 of the drum 3.

Das Zugmittel wird unmittelbar neben dem Ringflansch 20, der dem Mantelende mit dem kleineren Durchmesser zugeordnet ist wie bei 22 in Fig. 5 dargestellt auf die Trommel geführt.The traction means is guided onto the drum immediately next to the ring flange 20, which is assigned to the jacket end with the smaller diameter, as shown at 22 in FIG. 5.

Dazu ist das obere Zugmittelende 23 der Trommel vor der Durchführung 22 auf den Trommelmantel 11 mit mehreren Umschlägen wie bei 24 in Fig. 5 dargestellt um einen Innenzylinder 25 der Trommel 3 gewickelt. Dieser Innenzylinder umgibt die Trommelachse 26', um die sich die Trommel frei drehen kann, als Hülse. Das Zugmittel endet bei 23 an Schleifkontakten 26, 27, welche ihrerseits auf einer stationären Kontaktscheibe 28 laufen. Die Schleifkontakte 26 und 27 sowie die Kontaktscheibe 28 liegen in einer Buchse 29, für die der zylindrische und der anschließende konische Teil der Trommel 3 bei 30 ausgespart sind.For this purpose, the upper end of the traction means 23 of the drum is wound around the inner cylinder 25 of the drum 3 with several envelopes, as shown at 24 in FIG. This inner cylinder surrounds the drum axis 26 ', around which the drum can rotate freely, as a sleeve. The traction means ends at 23 on sliding contacts 26, 27, which in turn run on a stationary contact disk 28. The sliding contacts 26 and 27 and the contact disc 28 are in a socket 29 for which the cylindrical and the subsequent conical part of the drum 3 are recessed at 30.

Der aus der Trommel 3 herausgeführte zylindrische Abschnitt der Buchse 29 ist in Fig. 3 mit 31 bezeichnet und stellt die Arbeitsspule für eine Spiralfeder (Rollfeder) dar, die sich auf die Spule 31 auf- und abrollen kann. Dazu ist eine Vorratsspule 32 vorgesehen. Ein im Durchmesser erweiterter Abschnitt 33 der Spule enthält die Teile eines Freilaufes, die aus Fig. 5 ersichtlich sind.The cylindrical section of the bushing 29 which is led out of the drum 3 is designated 31 in FIG. 3 and represents the work coil for a spiral spring (roller spring) which can roll up and down on the coil 31. For this purpose, a supply spool 32 is provided. A diameter-enlarged section 33 of the coil contains the parts of a freewheel that can be seen in FIG. 5.

Mit Hilfe eine Knopfes 34 läßt sich eine Abrollbremse für die Festlegung der Abzugskraft des Zugmittels einstellen. Wird das Zugmittel in Richtung des Pfeiles 10 ausgezogen, so wickelt sich die Feder auf die Arbeitsspule 31 auf und von der Vorratsspule 32 ab. Sobald die Umschläge 12 bis 17 von der Trommel abgewickelt sind, kommt die Trommel bei Erreichen der Kabeldurchführung 22 zum Stillstand. Die in dem Abschnitt 33 außerhalb des Freilaufs untergebrachte Bremse fällt dann ein und hält die Trommel gegen die Federspannung fest. Wenn die Leuchte angehoben wird, zieht die Trommel das Zugmittel 10 durch die Führung 9 nach oben, wobei sich Umschläge 12 bis 17 um den Trommelmantel ergeben, von denen der Trommelmantelumschlag 17 die geringste und der Trommelumschlag 12 die größte Zugmittellänge enthalten. Das Aufwickeln erfolgt in der Darstellung der Figuren von rechts nach links.With the help of a button 34, a rolling brake can be set for determining the pulling force of the traction device. If the traction means is pulled out in the direction of arrow 10, the spring winds up on the work spool 31 and from the supply spool 32. As soon as the envelopes 12 to 17 have been unwound from the drum, the drum comes to a standstill when the cable bushing 22 is reached. The brake housed in section 33 outside the freewheel then engages and holds the drum against the spring tension. When the lamp is raised, the drum pulls the traction device 10 through the guide 9 upwards, resulting in envelopes 12 to 17 around the drum jacket, of which the drum jacket envelope 17 contains the smallest and the drum envelope 12 contains the largest traction device length. The winding takes place in the representation of the figures from right to left.

Claims (11)

Pendelleuchte mit Zugmittelantrieb (2) durch eine Trommel (3), dadurch gekennzeichnet, daß die Trommel (3) einen konischen Mantel (11) aufweist und der Neigungswinkel des Trommelmantels (11) sowie die Anordnung der Zugmittelführung (9) derart auf die Oberflächenglätte des Zugmittels (1) abgestimmt sind, daß sich die Umschläge (12 bis 17) beim Aufwickeln des Zugmittels (2) auf die Trommelschräge (18) jeweils dem Nachbarumschlag anlegen.Pendant lamp with traction mechanism drive (2) by a drum (3), characterized in that the drum (3) has a conical casing (11) and the angle of inclination of the drum casing (11) and the arrangement of the traction device guide (9) on the surface smoothness of the Traction means (1) are coordinated so that the envelopes (12 to 17) each lay on the neighboring envelope when the traction means (2) is wound onto the drum slope (18). Pendelleuchte nach Anspruch 1, dadurch gekennzeichnet, daß bei mit homogenem Werkstoff ummantelten Zugmitteln (1) und bei Ausrichtung der Zugmittelführung (9) im wesentlichen auf den größten Umschlag (12) des Zugmittels (1) auf der Trommel (3) der Neigungswinkel des Trommelmantels ca. 25 bis 30 Grad beträgt.Pendant luminaire according to claim 1, characterized in that when traction means (1) are sheathed with homogeneous material and when the traction means guide (9) is aligned essentially with the largest envelope (12) of the traction means (1) on the drum (3), the inclination angle of the drum shell is about 25 to 30 degrees. Pendelleuchte nach Anspruch 1, dadurch gekennzeichnet, daß als Zugmittel (1) das Lampenkabel dient.Pendant lamp according to claim 1, characterized in that the lamp cable serves as the pulling means (1). Pendelleuchte nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß der Trommelmantel (11) zylindro-konisch ist.Pendant lamp according to one of claims 1 or 2, characterized in that the drum shell (11) is cylindro-conical. Pendelleuchte nach Anspruch 4, dadurch gekennzeichnet, daß der zylindrische Teil (19) des Trommelmantels (11) im wesentlichen für einen Zugmittelumschlag (12) vorgesehen ist.Pendant lamp according to claim 4, characterized in that the cylindrical part (19) of the drum shell (11) is essentially provided for a traction means envelope (12). Pendelleuchte nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Trommelmantel (11) zwischen Ringflanschen (20, 21) der Trommel (3) ausgebildet ist.Pendant lamp according to one of claims 1 to 5, characterized in that the drum shell (11) is formed between ring flanges (20, 21) of the drum (3). Pendelleuchte nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Zugmittel neben dem Trommelringflansch (20), der dem Mantelende mit dem kleineren Durchmesser zugeordnet ist, auf die Trommel (3) geführt ist.Pendant lamp according to one of Claims 1 to 6, characterized in that the traction means is guided onto the drum (3) in addition to the drum ring flange (20) which is assigned to the jacket end with the smaller diameter. Pendelleuchte nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das obere Zugmittelende (23) in der Trommel vor der Durchführung des Zugmittels auf den Trommelmantel (11) mit mehreren Umschlägen (24) um einen Innenzylinder (25) der Trommel gewickelt ist und an Schleifkontakten (26, 27) endet, welche auf einer stationären Kontaktscheibe (28) laufen, für die das der Zugmitteldurchführung (22) gegenüberliegende Trommelende ausgespart ist.Pendant lamp according to one of claims 1 to 7, characterized in that the upper end of the traction means (23) in the drum is wound with several envelopes (24) around an inner cylinder (25) of the drum in the drum before the traction means is passed through and ends at sliding contacts (26, 27), which run on a stationary contact disk (28), for which the drum end opposite the traction device bushing (22) is recessed. Pendelleuchte nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Trommel (3) als Formkörper und als Lostrommel auf der Achse (26') angeordnet ist, wobei in der Aussparung eine Buchse (29) angeordnet ist, welche die Teile des Trommelantriebes sowie die Schleifkontakte (27) und die Ringscheibe (28) enthält.Pendant lamp according to one of claims 1 to 8, characterized in that the drum (3) is arranged as a shaped body and as a loose drum on the axis (26 '), a bushing (29) being arranged in the cut-out, which parts of the drum drive and contains the sliding contacts (27) and the washer (28). Pendelleuchte nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß ein den Trommelantrieb und die Trommel enthaltendes Gehäuse (4) einen Trichter (7) als Zugmittelführung (9) aufweist.Pendant lamp according to one of claims 1 to 9, characterized in that a housing (4) containing the drum drive and the drum has a funnel (7) as a traction means guide (9). Pendelleuchte nach einem der Ansprüche 1 bis 10, gekennzeichnet durch einen Baldachin (5), welcher das Gehäuse (4) umgibt.Pendant lamp according to one of claims 1 to 10, characterized by a canopy (5) which surrounds the housing (4).
EP95105076A 1994-04-08 1995-04-05 Pendant lighting fixture with carrier cable driving mechanism Expired - Lifetime EP0676586B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4411990A DE4411990A1 (en) 1994-04-08 1994-04-08 Pendant lamp with traction drive
DE4411990 1994-04-08

Publications (2)

Publication Number Publication Date
EP0676586A1 true EP0676586A1 (en) 1995-10-11
EP0676586B1 EP0676586B1 (en) 2000-07-12

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ID=6514832

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Application Number Title Priority Date Filing Date
EP95105076A Expired - Lifetime EP0676586B1 (en) 1994-04-08 1995-04-05 Pendant lighting fixture with carrier cable driving mechanism

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EP (1) EP0676586B1 (en)
AT (1) ATE194696T1 (en)
CZ (1) CZ89195A3 (en)
DE (2) DE4411990A1 (en)
PL (1) PL179414B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20120885A1 (en) * 2012-05-22 2013-11-23 Marco Gaeta HEIGHT SUSPENSION AND ADJUSTMENT DEVICE, IN PARTICULAR OF LAMPS AND THE LIKE
WO2020223746A1 (en) * 2019-05-08 2020-11-12 Prolicht Gmbh Lighting device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19853228C2 (en) 1998-11-18 2001-12-13 Andreas Wilke Arrangement for height-adjustable hanging bracket of an electrically operated device
DE19930670C2 (en) * 1999-07-02 2001-05-10 Beckmann & Co Kg Luminaire suspension with a rollable cable to raise and lower the luminaire
DE202007017625U1 (en) * 2007-12-14 2009-04-23 Aloys Fischer Gmbh Height adjustable pendant light
DE102021134131B3 (en) 2021-12-21 2023-03-09 Christian Kögel Cable holder for attaching a cable-mounted lighting unit under a ceiling

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Publication number Priority date Publication date Assignee Title
DE149954C (en) *
FR919039A (en) * 1945-12-12 1947-02-25 Ceiling rose with automatic reel for adjusting the suspension of an electric lamp to different heights
DE1171078B (en) * 1958-12-13 1964-05-27 Reininghaus & Co Drawbar light
EP0546297A1 (en) * 1991-12-10 1993-06-16 WEINOR Dieter Weiermann GmbH & Co. Cable winding device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE149954C (en) *
FR919039A (en) * 1945-12-12 1947-02-25 Ceiling rose with automatic reel for adjusting the suspension of an electric lamp to different heights
DE1171078B (en) * 1958-12-13 1964-05-27 Reininghaus & Co Drawbar light
EP0546297A1 (en) * 1991-12-10 1993-06-16 WEINOR Dieter Weiermann GmbH & Co. Cable winding device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20120885A1 (en) * 2012-05-22 2013-11-23 Marco Gaeta HEIGHT SUSPENSION AND ADJUSTMENT DEVICE, IN PARTICULAR OF LAMPS AND THE LIKE
WO2013175291A1 (en) 2012-05-22 2013-11-28 Marco Gaeta Hanging and height adjusting device for suspension lamps
CN104334967A (en) * 2012-05-22 2015-02-04 马可·盖塔 Hanging and height adjusting device for suspension lamps
WO2020223746A1 (en) * 2019-05-08 2020-11-12 Prolicht Gmbh Lighting device
AT17065U1 (en) * 2019-05-08 2021-04-15 Prolicht Gmbh Lighting device

Also Published As

Publication number Publication date
PL308044A1 (en) 1995-10-16
CZ89195A3 (en) 1996-09-11
ATE194696T1 (en) 2000-07-15
DE4411990A1 (en) 1995-10-12
PL179414B1 (en) 2000-09-29
DE59508546D1 (en) 2000-08-17
EP0676586B1 (en) 2000-07-12

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