US3553398A - Connecting boxes including switching means for illuminating devices - Google Patents

Connecting boxes including switching means for illuminating devices Download PDF

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Publication number
US3553398A
US3553398A US818644A US3553398DA US3553398A US 3553398 A US3553398 A US 3553398A US 818644 A US818644 A US 818644A US 3553398D A US3553398D A US 3553398DA US 3553398 A US3553398 A US 3553398A
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United States
Prior art keywords
tongues
holding
head portion
holding tongues
setoff
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Expired - Lifetime
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US818644A
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English (en)
Inventor
Heinz Seelbach
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.)
Reininghaus and Co KG
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Reininghaus and Co KG
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Publication date
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R25/00—Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
    • H01R25/14—Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length
    • H01R25/142—Their counterparts
    • 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

Definitions

  • Conducting bars are accessible laterally and connect boxes having an upper setoff head portion and adapted for carrying lamps,
  • the connecting boxes interchange with the supporting ledges and are equipped with a plurality of spring tongues.
  • the spring tongues projecting laterally in pairs from the upper setoff head portion, serve as holding tongues and the remaining tongues as contact tongues.
  • a cam roller is transferable selectively into operative engaging positions or in an inoperative position. The cam roller is transferable into two of the operative positions. One of the operative positions leads the holding tongues into a preliminary locking position, and the other of the operative positions leads the holding tongues into their final locking position and leads simultaneously the contact tongues into their engagement position at the conducting bars.
  • the present invention relates to a lighting device, in general, and to such lighting device having hollow supporting ledges to be secured in, on or at a distance from a supporting face, which supporting ledges are open towards one side and receive conducting rails accessible in the hollow space from one side and are equipped with connecting boxes for carrying lamps which enter with an upper setoff head part into the supporting ledges and are equipped with a plurality of spring tongues.
  • the spring tongues project laterally from the setoff head part as holding tongues in pairs, and serve also as contact tongues and are transformable by means of a cam roller switchable by means of a switching lever sitting on the outside connecting box selectively into an engagement or ineffective position.
  • Such lighting devices are used particularly in large spaces as department stores, museums, or the like. They have the advantage that'the connecting boxes for the lamps on the hollow supporting ledges secured to the sealing of the space can be inserted at any selected position into the hollow supporting ledges and be securely clamped therein. One is even in the position in connection with this lighting device, to vary a lighting arrangement by releasing, displacing and clamping again of the connecting boxes. This case occurs, for instance, if in a museum hall, the exhibited objects are newly arranged.
  • the known lighting devices of the first-mentioned type have in the setoff head portion of the connecting box two or two pairs of contact tongues, which, upon rotation of the switching clamps are transmitted from their inoperative position within the connecting box into an inoperative position. They emerge then at the end sides of the head portion of the connecting box and reach thus the conducting bars of the supporting ledges, whereby the electrical connection to the lamp is established.
  • these connecting boxes In the vertical longitudinal center axis these connecting boxes have a pair of holding tongues, which emerge at opposite sides of the head portion and cooperate with a metallic supporting ledge.
  • These tongues serve in the known lighting device simultaneously as holding tongues and as grounding contacts. This security of the connecting boxes in the supporting ledges is not satisfactory, because by lateral pressure, pull or tipping the connecting boxes can be pushed out from the connection boxes in spite of the holding tongues from the supporting ledges.
  • the holding tongues alone, not, however, the contact tongues are transformed into a preliminary locking position.
  • This preliminary locking position means, that the holding tongues enter into coordinated recesses in the holding supporting ledges, yet are not yet rigidly pressed therein.
  • FIG. 1 is an end elevation of a lighting device partly in section through the supporting ledge
  • FIG. 2 is a top plan view of a connecting box alone
  • FIG. 3 is a side elevation of the connecting box
  • FIGS. 4 to 6 are fragmentary schematic end views of the supporting ledge and the connecting box, the front wall of which is removed for better demonstration and in particular shown in three different switching positions.
  • the lighting device comprises by example two main parts, namely a supporting ledge A and a connecting box B.
  • the supporting ledge A which is best recognizable in FIG. 1, comprises in the embodiment presented as example two ledge parts 10 and 11, of which the ledge part 10 has generally a U or Q-shaped cross section.
  • the ledge part 10 receives in its hollow space, accessible from below by a longitudinal slot, two ledges l2 and 13 of insulating material, for instance, synthetic material, which have a longitudinal groove, which point towards each other and to a vertical longitudinal center plane of the supporting ledge part 10 and receive each a conducting bar 14.
  • These conducting bars 14 extend over the entire length of the supporting ledge part 10 and are connected to the current net and thus feed current.
  • the supporting ledge part 10 Near the edges of the downwardly directed slot opening, the supporting ledge part 10 has a groove 15 projecting through in longitudinal direction. The two grooves 15 point towards each other and to the vertical longitudinal center plane of the supporting ledge part 10, respectively.
  • a supporting ledge profile 11 serving as a cover covers up the supporting ledge part 10 from above.
  • the supporting ledgeparts 10 and 11 are connected with each other, for instance, by screwing.
  • the supporting ledge part 11 receives at its top one or a plurality of tubes 16, with which the supporting ledge A can be suspended at a distance from and below a ceiling (not shown).
  • a ceiling not shown
  • Each connecting box B has a generally basic design like a parallelepiped, it is, however, stepwise :set off in its width at the upper head end 17 cooperating with a supporting ledge A and has thus in the head portion 17 a lesser width than in the main portion.
  • bores At the sidewalls 18 of the head part of the connecting box are provided bores, through which end parts of, by example, totally five tongues 19, 20, 21, 22 and 23 can enter from the inside towards the outside.
  • the two outer tongues 19 and 20 serve as so-called holding tongues. They are disposed close to the end faces 24 of the connecting box B and are set off angularly. A holding tongue 19 is disposed thereby on one side (FIG. 3) in the front to the left, the second holding tongue 20 is disposed in the rear to the right.
  • the holding tongues 19 and 20 have, as can be ascertained in FIG. 4 an angularly shaped end part, with which they cooperate with the two grooves 15 with the connecting box B inserted into the supporting ledge part 10.
  • a tongue 21 formed as a flat contact is provided, which cooperates in case of the connecting box B being inserted into the supporting ledge A with a metallic blank inner face 25 of the supporting ledge part 10 and serves as a ground contact (FIGS. 1 and 5). If thus the supporting ledge consists, by example, of an anodized light metal, then by removal of the anodized layer, the contact faces on the supporting ledge part 10 become electrically conducting.
  • two further tongues 22 and 23 are provided, which serve as contact tongues and cooperate with the two conducting bars 14 of the supporting ledge A.
  • the contact tongues 22 and 23 are disposed always on the side of the connecting box B pointing away from the holding tongues 19 and 20. This has the purpose of distributing equally the occurring forces during the later outwardly struddling of the contact tongues 22 and 23 and the holding tongues 19 and 20.
  • the contact tongues 22 and 23 are exactly as the holding tongues 19 and 20 and in contrast to the grounding flat contact 21 equipped with outwardly directed angular arrangements.
  • Holding tongues 19 and 20, contact tongues 22 and 23 and the grounding tongue 21 extend, as can be best ascertained from FIG. 3 from the stepwise setoff head portion 17 of each connecting box B into its lower part, where the holding tongues 19 and 20 are secured by a screw 26 while the grounding tongue 21 and the contact tongues 22 and 23 are equipped with connecting terminals 27.
  • These connecting. terminals serve the electric conducting connection of the grounding tongue 21 and of the contact tongues 22 and 23 with the actual locking device (not shown), which, in known manner, is received by the connecting box B or is supported thereby.
  • each connecting box B has in the bottom exit opening for the conduits to the lighting device.
  • a cam roller 28 is provided in the connecting box B which has for each tongue 19 to 23 its own switching cam 29--33.
  • the cam roller 28 is rotatable by means of a switching knob 34 and in particular in three different positions, each of which can be locked which are indicated in FIGS. 46, as the example of one of the two holding tongues 19.
  • the cam roller 28 In the position 1 (FIG. 4), the cam roller 28 is with its switching cams 29-33 in a zero or inoperative position. In this position all switching cams have their lowest height relative to the cam drum axis.
  • the holding tongues 19 and 20, the grounding tongue 21 and the contact tongues 22 and 23 are disposed thereby and due to their own resiliency such on their switching cams 29-33, that neither the grounding tongue 21, nor the holding tongues 19 and 20, nor the contact tongues 22 and 23 project laterally from the head portion 17 of the connecting box B.
  • the head portion 17 of the connecting box B can be inserted without any difficulty into the slot of the supporting ledge part 10, whereby a onesided step 35 at the head part 17 of each connecting box B and on the supporting ledge part 10 in known manner takes care that each head part 17 is inserted nonexchangeably.
  • the purpose of this measure is to take care of the fact that upon insertion of the connecting box into the supporting ledge A, the grounding flat contact 21 engages the metallic blank position 25 of the supporting leg part 10.
  • the contact tongues 23 are, slightly running behind, pressed outwardly by the switching cams 30, 32 from the head part 17 of the connecting box B at opposite sides. They arrive thereby at the contact wires 14, so that between the latter and the lighting bodies connected with the connecting box B a current-conducting connection is produced.
  • the arrangement of the holding tongues 19 and 20 at the connecting box B angularly offset next to the ends 24 of the head portion 17 has the advantage that in this manner, the attacking points of the holding tongues 19 and 20 are disposed far apart from each other. One can, therefore, no more remove the connecting boxes B, as previously, by pressure, pull or tipping from the supporting ledge A.
  • the arrangement of the contact tongues 22 and 23 on the side faces pointing away from the holding tongues 19 and 20 has the advantage that in the third switching position the holding tongues 19 and 20 and the contact tongues 22 and 23 assume better the occurring forces, since they are disposed in pairs angularly offset.
  • a lighting device to be secured in, or spaced apart from a securing face comprising: i
  • a supporting ledge comprising hollow supporting ledge parts, one of said ledge parts defining a hollow space open in lateral direction;
  • connecting boxes having an upper setoff head portion and adapted for carrying lamps, each of said connecting boxes interengaging with said supporting ledge parts and equipped with a plurality of spring tongues;
  • said spring tongues projecting laterally in pairs from said upper setofi head portion, serve as holding tongues and the remaining tongues as contact tongues;
  • ing tongues are angularly setoff relative to each other by arranging the latter near the outer ends of side faces of each of a cam roller on each connecting box transferable selectively Said connecting boxesv whereby of said holding g is into operative engaging positions or in an inoperative position;
  • cam roller being transferable into two of said operative positions

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
US818644A 1968-04-25 1969-04-23 Connecting boxes including switching means for illuminating devices Expired - Lifetime US3553398A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681764213 DE1764213B1 (de) 1968-04-25 1968-04-25 Beleuchtungsvorrichtung

Publications (1)

Publication Number Publication Date
US3553398A true US3553398A (en) 1971-01-05

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US818644A Expired - Lifetime US3553398A (en) 1968-04-25 1969-04-23 Connecting boxes including switching means for illuminating devices

Country Status (7)

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US (1) US3553398A (cg-RX-API-DMAC7.html)
AT (1) AT281995B (cg-RX-API-DMAC7.html)
CH (1) CH485983A (cg-RX-API-DMAC7.html)
DE (1) DE1764213B1 (cg-RX-API-DMAC7.html)
FR (1) FR2006874A1 (cg-RX-API-DMAC7.html)
GB (1) GB1203007A (cg-RX-API-DMAC7.html)
NL (1) NL163616C (cg-RX-API-DMAC7.html)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3832673A (en) * 1973-02-16 1974-08-27 Soquenne M Conducting rail and adapter for supplying electrical appliance
US3910667A (en) * 1972-07-21 1975-10-07 Rotaflex Ltd Electrical supply installations
US9130327B2 (en) 2013-06-18 2015-09-08 Trinity, Llc Power assembly for display

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51145899A (en) * 1976-05-31 1976-12-15 Hitachi Cable Ltd Distribution track
US4173382A (en) * 1977-01-27 1979-11-06 Booty Donald J Portable track lighting
IT8620584V0 (it) * 1986-01-23 1986-01-23 Teknolit Srl Dispositivo per l'alimentazione elettrica di apparati utilizzatori funzionanti a bassa tensione di sicurezza.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3295093A (en) * 1963-05-21 1966-12-27 Lightolier Inc Electric power distribution conduit accessible for connection thereto along substantially its entire length
US3503032A (en) * 1968-01-04 1970-03-24 Us Industries Inc Adaptor for electrical power distribution track

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3563032A (en) * 1970-03-27 1971-02-16 R Lapointe Hydrostatic pressure prime mover

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3295093A (en) * 1963-05-21 1966-12-27 Lightolier Inc Electric power distribution conduit accessible for connection thereto along substantially its entire length
US3503032A (en) * 1968-01-04 1970-03-24 Us Industries Inc Adaptor for electrical power distribution track

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910667A (en) * 1972-07-21 1975-10-07 Rotaflex Ltd Electrical supply installations
US3832673A (en) * 1973-02-16 1974-08-27 Soquenne M Conducting rail and adapter for supplying electrical appliance
US9130327B2 (en) 2013-06-18 2015-09-08 Trinity, Llc Power assembly for display

Also Published As

Publication number Publication date
FR2006874A1 (cg-RX-API-DMAC7.html) 1970-01-02
NL163616B (nl) 1980-04-15
CH485983A (de) 1970-02-15
DE1764213B1 (de) 1971-02-25
NL6905726A (cg-RX-API-DMAC7.html) 1969-10-28
NL163616C (nl) 1980-09-15
AT281995B (de) 1970-06-10
GB1203007A (en) 1970-08-26

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