EP0415951B1 - Douille de lampe - Google Patents

Douille de lampe Download PDF

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Publication number
EP0415951B1
EP0415951B1 EP89905037A EP89905037A EP0415951B1 EP 0415951 B1 EP0415951 B1 EP 0415951B1 EP 89905037 A EP89905037 A EP 89905037A EP 89905037 A EP89905037 A EP 89905037A EP 0415951 B1 EP0415951 B1 EP 0415951B1
Authority
EP
European Patent Office
Prior art keywords
lamp holder
lamp
base
back plate
terminals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89905037A
Other languages
German (de)
English (en)
Other versions
EP0415951A1 (fr
Inventor
Manfred Treichl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0415951A1 publication Critical patent/EP0415951A1/fr
Application granted granted Critical
Publication of EP0415951B1 publication Critical patent/EP0415951B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/34—Supporting elements displaceable along a guiding element
    • F21V21/35—Supporting elements displaceable along a guiding element with direct electrical contact between the supporting element and electric conductors running along the guiding element
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/0005—Fastening of light sources or lamp holders of sources having contact pins, wires or blades, e.g. pinch sealed lamp
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/30—Pivoted housings or frames

Definitions

  • the invention relates to a lamp holder for a low-voltage lamp rotatable about an axis, with an insulating base which has two lamp contacts and two connecting terminals conductively connected to the lamp contacts, each with a receiving bore for a rigid conductor.
  • a lighting device with a lamp socket of this type which can be pivoted like a universal joint is known, for example, from DE-U-8633208.
  • conventional screw terminals are arranged, into which the two conductor ends are inserted parallel to one another.
  • the two rigid conductors are angled several times so that the second ends lie in the axis of rotation and can be stored in bearing bushes of a further conductor section.
  • WO-A-88/02460 also shows a lamp socket which can be pivoted in the manner of a universal joint, two diametrically projecting rods projecting from the base and being fixed in the base.
  • a radial blind bore for receiving one of the two contact pins of the lamp to be used is formed in the end region of each current-conducting rod, which is accessible in the interior and is thus plugged directly into the current-conducting rods.
  • the outer ends of the current conducting rods are rotatably supported in quarter-circle-shaped supporting pieces, so that the first axis of rotation of the universal joint is defined by the rotary bearings of the curved supporting pieces.
  • the invention has now set itself the task of enabling the formation of an axis of rotation on the lamp holder.
  • the conductor ends engaging in the bearing bushes form a bearing axis about which the socket can be rotated, so that intermediate spacers and additional bearing bushings are saved compared to the prior art mentioned above. Since low-voltage lighting devices of this type also serve decorative purposes, this results in a further advantage that a second base can be provided on the two terminals, which with respect to the axis of rotation first base is arranged opposite. This makes it possible to create a double-turn version that can be rotated all around, with lamps that emit in opposite directions, which means that special lighting effects can be achieved.
  • connection terminals represent the support part for one or two bases, while usually the base also forms the support part for the connection terminals.
  • each base is formed by a cylindrical disk which has fastening bores diametrically to the disk axis, and that threaded pins are provided on each connection terminal perpendicular to the conductor receiving bore, each of which projects through a fastening bore of a base.
  • each threaded pin penetrates a flat contact spring which has a curved contact tongue which projects into the insertion opening of the contact pins.
  • the clamping spring thus creates both the electrical and the frictional connection between the lamp and the lamp holder, it being shown that so-called cold mirror lamps, i.e. those which have a glazed reflector screen and therefore have a relatively high weight, are clamped properly.
  • screw terminals are provided as connecting terminals, which is also possible without further ado in the lamp holder according to the invention.
  • at least one of the two setscrews can be formed by the clamping screw of the screw terminal. If a headless clamping screw is used, the base can be fixed using a nut that can be screwed onto the clamping screw.
  • Another embodiment on the other hand, can provide that the connecting terminals form screwless terminals, the contact spring having a clamping tongue which is inclined in the insertion direction and assigned to the conductor receiving bores.
  • FIG. 1 to 5 show axial sections through lamp holders according to the invention
  • FIG. 6 shows a top view of a lamp holder clamped to two lead wires
  • FIG. 7 shows a clamping element according to FIG. 6 in an oblique view.
  • a lamp holder 35 has a base 1 formed by a cylindrical disk made of insulating material, on which an outer sleeve 12 is locked by means of lugs 14 engaging behind the base edge.
  • the base 1 is fastened to two connecting terminals 2, each of which has a conductor receiving bore 3 for clamping rigid conductor ends 15 (FIG. 2).
  • the two conductor receiving bores 3 are aligned with one another, which results in an axis of rotation 10 which is perpendicular to the axis 6 of the Socket 1 runs.
  • the lamp holder can be rotated about the conductor ends 15 which can be inserted from the outside and penetrate an opening 13 in the sleeve 12.
  • the base 1 is also provided with insertion openings 11 for the contact pins 17 of a lamp 16, the diameter of the insertion openings 11 being enlarged.
  • a curved contact piece of a flat contact spring 9 projects through the insertion opening 11 and establishes the mechanical and electrical connection to the contact pins 17, with a good fit and a secure hold of the lamp 16 being achieved.
  • connection terminals 2 are designed as screw terminals.
  • Each connection terminal 2 consists of a cuboid base body having the conductor receiving bore 3, which carries a threaded pin 4 radially to the conductor receiving bore 3 on one side and has a threaded bore on the opposite side, into which a further threaded pin 7 with an actuating opening 8 at the end is inserted.
  • the base pin 7 forms the clamping screw for clamping the conductor end 15 and for fixing the desired position of the lamp holder.
  • the grub screw 7 can also run out on the conductor side into a tip which, when the grub screw 7 is tightened, is pressed into the conductor end 15, which otherwise could also be provided with a circumferential groove.
  • the threaded pin 7 can also be formed by a conventional cap screw.
  • the set screw 4 protruding from the connecting terminal 2 passes through a bore in the base 1, and is provided on the back with a nut 5, which is inserted in a recess in the base 1, in particular in a form-fitting manner.
  • the flat contact spring 9 penetrated by the grub screw 4 clamped, the free angled end of which forms the aforementioned contact piece projecting through the insertion opening 11 for contact with the contact pin 17 of the inserted lamp 16.
  • a cap screw could also be inserted into a second threaded hole in the base body of the connecting terminal 2.
  • the lamp holder can be rotated about the conductor ends 15 defining the axis of rotation 10 (arrow 25), the base bodies of the two connection bushings forming the connection terminals 2 being fixed in any desired position by the set screws 7.
  • FIG. 3 shows a second embodiment in which a second base 21 of the same design is attached to the base bodies of the connecting terminals 2 in mirror image of the base 1 with respect to the axis of rotation 10.
  • the setscrews 7 in turn form the clamping screws for the conductor ends 15 and for the further contact springs 23. These, with their angled ends forming contact tongues, project through insertion openings 22 for the contact pins 17 of a second lamp 16.
  • the remaining design corresponds to the lamp holder shown in FIG. 3 that described with reference to FIGS. 1 and 2.
  • FIG. 4 A further embodiment of a single version, which can also be doubled, is shown in FIG. 4.
  • the essential difference from the first embodiment according to FIGS. 1 and 2 lies in the arrangement of the contact spring 9, which is bent from a flat component into a U-shape and is threaded through at both ends of the threaded pin 4.
  • the bent contact piece projecting through the insertion opening 11 the contact spring 9 will deform approximately as asymmetrically as a result of the clamping at the end when a contact pin 17 is inserted in the insertion direction, as shown in dashed lines in FIG. 4.
  • Fig. 5 shows a slightly modified embodiment of a single version, which can also be supplemented by a second base to a double version.
  • the base body of the connection terminals 2 cries again into a cuboid shape and has a threaded bore 26 perpendicular to the conductor receiving bore on both sides.
  • the base 1 (and a possible second base 21) are provided on the outside with a larger recess 19 into which the contact spring 9 is inserted.
  • the grub screw 4 is formed by the head screw shown, the head 20 of which is countersunk in the recess 19.
  • the cap screw penetrates the contact spring 9 and the base 1 and is screwed into the base body of the connection terminal 2, but it is not used to fix the conductor ends 15.
  • Each terminal 2 is namely in this embodiment a screwless terminal, in which the fixing of the conductor end 15 is carried out by a clamping tongue 18 which is arranged obliquely to the inlet opening of the conductor receiving bore 3 and forms the second end portion of the contact spring 9, the first end portion of which in turn the tongue protruding through the insertion opening 11 of the base 1 forms.
  • the clamping tongue 18 runs in the usual way into a cutting edge which presses into the inserted conductor end or into a circumferential groove formed there. The clamping tongue 18 which bends out during insertion thus clamps the conductor end 15 and ensures the electrical contact.
  • a clamping screw can optionally be additionally screwed into the free threaded bore 26 in the embodiment shown as a single socket.
  • the additional anti-rotation lock is not required, since the symmetrical design provides an indifferent balance in every position, and the clamping effect on the conductor end 15, which is doubled by the second contact spring 9, is reinforced anyway.
  • threaded pin 4 could also be used as an additional clamping screw for the anti-rotation device on the conductor end 15, if appropriate also by a corresponding curvature of the clamping spring 9 in the contact region of the head 20 or by a snap ring or another spring element.
  • FIG. 6 shows an assembly example of a lamp holder 35 according to FIGS. 1 to 5 with the aid of the clamping element shown in FIG. 7.
  • Lead wires 31 and 32 are arranged at a distance from one another in a conventional manner, not explained in detail, for example horizontally braced.
  • the connecting wires 33, 34 the ends 15 of which are fixed in the connecting terminals 2, run approximately radially outward from the lamp socket 35 to be installed and then run in a half circular arc.
  • the free ends are held by means of insulating connecting parts 36 on the other conductor, so that the two connecting wires 33, 34 complement each other to form an approximately circular, closed arrangement.
  • connection of the two connecting wires 33, 34 to the lead wires 31, 32 takes place by means of clamping elements in the form of helical springs 37.
  • These comprise a plurality of windings 38 which merge into a first end section 40 which extends in the interior 42 of the helical spring 37, on the end of which a hook 41 is formed.
  • the second end 39 of the coil spring 37 terminates in the usual manner approximately in one plane.
  • the hook 41 lies in the relaxed position (FIG. 7) approximately in the middle of the helical spring 37, and emerges upon compression at the second end 39, so that it can be hooked into the connecting wire 33, 34 (FIG. 6). Due to the compression of the helical spring 37, the connecting wire 33, 34 is pressed against the last turn 38 at the second end 39, and is thus caught in the hook 41. The connecting wire 33, 34 can be moved in the hook 41 in the direction of the double arrow 28, whereby a rotation of the lamp holder 35 is achieved about its axis.
  • the windings 38 of the helical spring 37 pretensioned in this way are thus so closely spaced that a feed wire 31, 32 can be clamped anywhere between two windings 38, which comes into contact with the end section 40, and passes through the helical spring 37 essentially diametrically.
  • Each coil spring 37 can be moved along the lead wire 31, 32 in the direction of the double arrow 27.
  • the helical spring 37 can be pivoted about the axis 42 in the direction of the double arrow 29, the end section 40 on the lead wire 31, which is clamped between the turns 38, 32 rolls.
  • the lamp holder 35 can be aligned in any position in the room.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Connecting Device With Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Claims (6)

  1. Douille de lampe pour une lampe à basse tension qu'on peut faire tourner autour d'un axe, avec une embase (1) isolante qui présente deux contacts de lampe et deux bornes de raccordement (2) reliées électriquement aux contacts de lampe, chacune avec une forure (3) pour recevoir un conducteur (15) rigide,
    caractérisée en ce que les deux bornes de raccordement (2) de l'embase (1) constituent des coussinets de paliers de la douille de lampe et présentent des forures (3) destinées à recevoir des conducteurs, ces forures étant alignées l'une avec l'autre.
  2. Douille de lampe selon la revendication 1, caractérisée en ce qu'une deuxième embase (21) est prévue sur les deux bornes de raccordement (2) en étant disposée à l'opposé de la première embase (1) par rapport à l'axe de rotation (10).
  3. Douille de lampe selon la revendication 1 ou 2, caractérisée en ce que chaque embase (1, 21) est constituée par un galet cylindrique qui présente, diamétralement par rapport à son axe (6), des forures de fixation, et en ce que des goujons filetés (4, 7) sont prévus sur chaque borne de raccordement (2) perpendiculairement à la forure (3) recevant un conducteur, ces goujons traversant chacun une forure de fixation d'une embase (1, 21).
  4. Douille de lampe selon la revendication 3, dans laquelle des contacts d'enfichage pour des broches de contact (17) de la lampe sont prévus dans l'embase, caractérisée en ce que chaque goujon fileté (4, 7) traverse un ressort de contact plat (9, 23), lequel présente une languette de contact recourbée qui dépasse dans l'ouverture d'enfichage (11, 22) des broches de contact (17).
  5. Douille de lampe selon une des revendications 1 à 4, dans laquelle des bornes à vis sont prévues en tant que bornes de raccordement (2),
    caractérisée en ce qu'au moins un des deux goujons filetés (4, 7) constitue la vis de serrage de la borne à vis.
  6. Douille de lampe selon une des revendications 1 à 4, caractérisée en ce que les bornes de raccordement (2) constituent des bornes sans vis, tandis que le ressort de contact (9) présente une languette de serrage (18) inclinée dans le sens de l'enfichage, associée à la forure (3) recevant un conducteur.
EP89905037A 1988-05-03 1989-05-02 Douille de lampe Expired - Lifetime EP0415951B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1139/88A AT393185B (de) 1988-05-03 1988-05-03 Lampenfassung
AT1139/88 1988-05-03

Publications (2)

Publication Number Publication Date
EP0415951A1 EP0415951A1 (fr) 1991-03-13
EP0415951B1 true EP0415951B1 (fr) 1994-01-19

Family

ID=3507442

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89905037A Expired - Lifetime EP0415951B1 (fr) 1988-05-03 1989-05-02 Douille de lampe

Country Status (8)

Country Link
US (1) US5077647A (fr)
EP (1) EP0415951B1 (fr)
JP (1) JPH03504179A (fr)
AT (2) AT393185B (fr)
AU (1) AU3547289A (fr)
DE (1) DE58906782D1 (fr)
WO (1) WO1989011062A1 (fr)
ZA (1) ZA893273B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9307373U1 (de) * 1993-05-14 1994-09-22 Sonnleitner, Ferdinand, 40625 Düsseldorf Niedervolt-Leuchtanlage
ITFI20070023A1 (it) 2007-02-02 2008-08-03 Targetti Sankey Spa Dispositivo di illuminazione orientabile.
MX353102B (es) 2012-11-01 2017-12-19 Halliburton Energy Services Inc Aparatos, sistemas y métodos de semejanza de fase diferencial.

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH65428A (de) * 1913-09-06 1914-06-16 Albert Schalch Kontaktvorrichtung an zum Hochziehen von Lampen bestimmten seitlichen Spielraum besitzenden Aufzügen
FR550640A (fr) * 1922-04-26 1923-03-14 Support de lampe électrique pour illumination
US1813863A (en) * 1930-05-27 1931-07-07 Edgar Little Nightingale Hanger for suspension lighting fixtures
FR949827A (fr) * 1947-07-17 1949-09-09 Maison Breguet Douille-support de lampe
US2655637A (en) * 1951-12-28 1953-10-13 Gen Electric Angle socket for electric lamps
GB1596745A (en) * 1976-11-05 1981-08-26 Park Royal Porcelain Co Ltd Lamp holders
CA1160303A (fr) * 1981-01-09 1984-01-10 William R. Bailey Connecteur electrique a pattes de calage des contacts
IT1178031B (it) * 1984-10-05 1987-09-03 Fabio Angeli Perfezionamento negli attacchi elettrici e magnetici di sicurezza per lampade elettriche
US4837667A (en) * 1986-10-03 1989-06-06 Tobias Grau Lighting system with lamps arranged between two low-voltage conductors
EP0285627B1 (fr) * 1986-10-03 1990-09-19 GRAU, Tobias Agencement d'eclairage a lampes disposees entre deux conducteurs basse tension
DE8633208U1 (de) * 1986-12-11 1987-02-19 Bovert, Friedhelm vom, 5900 Siegen Beleuchtungsvorrichtung
DE8704668U1 (de) * 1987-04-01 1987-05-27 Sölken-Leuchten GmbH & Co KG, 5760 Arnsberg Halogen-Niedervoltleuchte

Also Published As

Publication number Publication date
EP0415951A1 (fr) 1991-03-13
US5077647A (en) 1991-12-31
AT393185B (de) 1991-08-26
WO1989011062A1 (fr) 1989-11-16
ATA113988A (de) 1991-01-15
AU3547289A (en) 1989-11-29
DE58906782D1 (de) 1994-03-03
JPH03504179A (ja) 1991-09-12
ZA893273B (en) 1990-01-31
ATE100553T1 (de) 1994-02-15

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