US3551618A - 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
US3551618A
US3551618A US850793A US3551618DA US3551618A US 3551618 A US3551618 A US 3551618A US 850793 A US850793 A US 850793A US 3551618D A US3551618D A US 3551618DA US 3551618 A US3551618 A US 3551618A
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US
United States
Prior art keywords
tongues
switching
spring
rail
cam roller
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
US850793A
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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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Filing date
Publication date
Application filed by Reininghaus and Co KG filed Critical Reininghaus and Co KG
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Publication of US3551618A publication Critical patent/US3551618A/en
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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

  • a connection carries a lighting fixture and has an upper, setoff head part, penetrating the hollow space of the carrying rail, as well as being equipped with a plurality of spring tongues.
  • the said spring tongues emerge laterally from the setoff serving partly as holding tongues and at least as two contact tongues and are transferrabie selectively into an engaging or inoperative position by means of switching cams of a cam roller, which is switchable by means of a switching knob sitting on the outside on the connection box.
  • Transmission members are provided between the switching cams of the cam roller and the spring tongues, the transmission members have outer faces remote from the switching cams, and the spring tongues are secured over the greater part of their length, with the exception of their engaging end parts, to the outer faces of the transmission members.
  • the present invention relates to a lighting device with a hollow carrying rail to be secured at mat a distance of a securing face, which carrying rail is open towards one side and receives in its hollow space conducting rails accessible from the inside and is equipped with a terminal box carrying a lighting device.
  • the terminal box has an upper, setoff head part which connects in the hollow space of the carrying rail and is equipped with a plurality of spring tongues, which emerging laterally from the setoff head part, serve partly as holding tongues and at least in doubles as contact tonguesr
  • the spring tongues are transformable by means of switching cams of a cam roller selectively into an engagement or an inoperative position, the cam roller being switchable by means of aswitching knob sitting on the connection or terminal box.
  • the spring tongues serving as holding tongues and contact tongues within the connection box extend freely over the entire length. They are merely secured at one end, where the contact tongues have terminal clamps.
  • the switching cams of the cam roller engage at about the center of the spn'ng tongues at their back.
  • the spring tongues are thus aent through along the greater part of their length by the switching cams of the cam roller, in order to enter the engaging position.
  • the springs have, however, the disadvantageous characteristic, they they weaken, after they did stand for a longer time period under constant tension. This weakening is still favored, if heat occurs, which is the case in lighting devices of the type disclosed here. It is, therefore. to
  • the transmission member is a closed frame with a window opening, in which the switching cam'of the cam roller is guided as a sliding block. whereby the frame is movable in the direction towards the'conducting rails and away from the latter.
  • An embodiment is preferred thereby, in which the frame is mounted for a swinging movement on an axle on a section thereof pointing away from the engagement end parts of the spring tongues.
  • the springtongues can be reliably moved upon rotation of the cam rolleir by means of the switch knob.
  • FIG. 1 is an end elevation of a lighting device with a part section through a carrying 'rail;
  • FIG. 2 is a side elevation of a connection box
  • FIG. 3 is a top plan view of the connection box disclosed in FIG. 2;
  • FIG. 4, FIG. 5, and FIG. 6 are elevations partly in section of the. individual switch-cam-spring tongues of the connection box in a taken-apart state in different working positions of the cam roller.
  • the lighting device comprises three' main parts, namely a carrying rail A, a connection box B and a lighting device C carried by the connection box B, which lighting device C is disclosed in the embodiment as a projector.
  • the supporting rail A which can be best determined in FIG. 1, comprises a web part of substantially H-shaped cross section. It is secured by means of a securing sleeve 10 and a securing screw 11 just below a room ceiling 12, whereby the securing sleeve 10 enters ari undercut hollow space of the sup-. porting rail A.
  • the free web part receives in its inner hollow space accessible from below through a passing longitudinal slot an insulating material strip 13, which has totally three longitudinal grooves. Two of these longitudinal grooves are pointing towards each other and to a vertical longitudinal center plane of the supporting rail A and receive aconduit rail 14 each.
  • These conduit rails 14 extend over the total length of the supporting rail A and are connected to the electric network, thus carry electric current.
  • the third conduit-rail 15 disposed close to the supporting rail cover serves as a ground.
  • the supporting rail has on both sides of a vertical center plane two grooves 16, which point towards each other.
  • connection box B (FIGS. 2 and 3) has a generally parallelepipedon-shaped basic configuration, is, however, at its upper head end 17 cooperating with the carrying rail A as to its width stepwise set off and has, thus, in the head part 17 a narrower width than that of the main part.
  • a flat grounding pin 18 projects, which is spring biased, and aims by means of the charging spring 19 to continuously towards the outside from the cover of the head part I7.
  • This grounding pin 18 cooperates. with the grounding conduit 15 within the carrying rail A.
  • angularly bent end parts of, by example, totally four tongues 20, 21, 22 and 23 can move from the inside towards the outside.
  • the two outer tongues 20 and 21 serve as holding tongues. They are arranged close to at least one end face of the connecting box B and arranged diagonally, in order to dispose the holding points as much as possible apart.
  • a holding tongueZl is, thus disposed on one side (FIG. 3 in the front to the right), and the second holding tongue 20 from the rear on the left side.
  • the holding tongues 20 and 21, as well as the contact tongues 22 and 23, have angularly bent end parts.
  • the contact tongues 22 and 23 are equipped at their lower ends with a terminal clamp 24 each.
  • Connecting conduits 25 are secured thereto, which are guided from the bottom of the connecting box B through to a socket 26 of the actual lighting device C.
  • FIGS. 46 the individual spring tongues 20, 21, 22 and 23 four switching cams 2 7, 28, 29 and 30 and the grounding pin 18 are shown torn apart and turned each for It is to be understood, that the shaft 31 disclosed in the center as small circles projects in longitudinal direction through the connecting box 13, as can be ascertained from FIG. 2.
  • the terminal clamps 24 of the contact tongues 22 and 23 and the securing points of the holding ton gues 20 and 21 on the housing of the connecting box B and the free angularly bent end parts all four spring tongues and a cam roller 31 are mounted, which by means of a switching knob 32 provided on the outside of the housing of the connecting box B can be rotated.
  • the switching roller 31, projecting horizontally in longitudinal direction of the connection box B carries the four switching earns 27, 28, 29 and 30, which have the configuration of eccentrically mounted circular discs.
  • switching cams 27, 28, 29 and 31 are disposed framelike transmission members 33, which have a window opening 34, the upright and oppositely disposed inner wall faces of which are arranged parallel towards each other, whereby the open width of the window opening 34 corresponds with the diameter of the switching cams 27, 28, 29 and 30.
  • the framelike transmission members 33 are mounted on their lower end parts on a joint axle 35 for a swinging movement.
  • outer faces of the frames serving as rigid transmission member 33 are as can be recognized from FIG. 4, holding tongues 20 and 21 and contact tongues 22 and 23 secured such, that these spring tongues 20, 21 22 and 23 are secured along the main part of their length on the outside of the frame 33, however, with the exception of their engagement end parts.
  • FIG. 4 gives the position of the cam roller 31 in the noneffective position of the holding tongues 20 and 21 and the contact tongues 22 and 23.
  • the grounding pin 18 in this position engages already the grounding conduit of the carrying rail A.
  • a protection grounding of the connection box B and of the lighting'device C brought about from the moment of the insertion of the head part 17 of a connection box B into the supporting rail A.
  • This position does not change, because the grounding pin 18 is not controlled by switching cams, rather merely by spring tension against the grounding conduit 15 of the supporting rail A.
  • the cam roller 31 has been turned for one switching step, that means, for a predetermined angle. Due to the fact that the eccentric discs vary their position and switching cams 27, 28, 29 and 30 within the Window opening 34 of the rigid transmission frame 33, the two holding tongues 20 and 21 enter the grooves 16 coordinated thereto of the supporting rail A, while the contact tongues 22 and 23 have been moved forward in the direction to the conduction rails 14 of the carrying rail A, but do not enter the latter. In this position, the cam roller 31, in accordance with FIG. 5, the connection box B is already suspended on the carrying rail A.
  • connection box B still within the carrying rail A. Also the current feed is not brought about yet.
  • l.Alighting device comprising v a a hollow carrying rail tobe secured to at or adjacent to a securing face;
  • said carrying rail being open towards one side
  • connection box carrying a lighting fixture and having an upper, setoff head part, penetrating the hollow space of said carrying rail, as well as being equipped with a plurality of spring tongues;
  • said spring tongues emerging laterally from said setoff head part and serving partly as holding tongues and at least as.
  • switching means including a cam roller having switchingcams mounted in said box and including a switching knob on the outside of said box;
  • said switching means also including transmission members between said switching cams of said cam roller and said spring tongues;
  • said switching means being operable to transfer said contact tongues into engagement with said conducting rails and said holding tongues into engagement with said carryin rail;
  • said spring tongues being secured over the greater part of said closed frame is movable in a direction towards and away from said conducting rails.
  • said window opening in said frame has inner wall faces extending substantially parallel to said spring tongues; and the open width of said window opening corresponds with the diameter of said switching cams.
  • said frame is mounted for a swinging movement on said axle on its section remote from said engaging end parts of spring tongues.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
US850793A 1968-08-20 1969-08-18 Connecting boxes including switching means for illuminating devices Expired - Lifetime US3551618A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681764854 DE1764854B1 (de) 1968-08-20 1968-08-20 Beleuchtungsvorrichtung

Publications (1)

Publication Number Publication Date
US3551618A true US3551618A (en) 1970-12-29

Family

ID=5698164

Family Applications (1)

Application Number Title Priority Date Filing Date
US850793A Expired - Lifetime US3551618A (en) 1968-08-20 1969-08-18 Connecting boxes including switching means for illuminating devices

Country Status (8)

Country Link
US (1) US3551618A (enrdf_load_stackoverflow)
JP (1) JPS4912994B1 (enrdf_load_stackoverflow)
AT (1) AT286448B (enrdf_load_stackoverflow)
CH (1) CH493786A (enrdf_load_stackoverflow)
DE (1) DE1764854B1 (enrdf_load_stackoverflow)
FR (1) FR2015944A1 (enrdf_load_stackoverflow)
GB (1) GB1232526A (enrdf_load_stackoverflow)
NL (1) NL6912560A (enrdf_load_stackoverflow)

Cited By (1)

* 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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54145198U (enrdf_load_stackoverflow) * 1978-03-31 1979-10-08
JPS5522814U (enrdf_load_stackoverflow) * 1978-07-27 1980-02-14
JPS5548290U (enrdf_load_stackoverflow) * 1978-09-27 1980-03-29
IT1255579B (it) * 1992-07-14 1995-11-09 Sistema di illuminazione spaziale
GB2414869A (en) * 2003-08-18 2005-12-07 John Ashton Sinclair Electrical plug and busbar system

Family Cites Families (3)

* 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
DE1989491U (de) * 1968-04-25 1968-07-18 Reininghaus & Co Beleuchtungsvorrichtung.

Cited By (1)

* 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

Also Published As

Publication number Publication date
CH493786A (de) 1970-07-15
DE1764854B1 (de) 1971-05-06
FR2015944A1 (enrdf_load_stackoverflow) 1970-04-30
GB1232526A (enrdf_load_stackoverflow) 1971-05-19
JPS4912994B1 (enrdf_load_stackoverflow) 1974-03-28
NL6912560A (enrdf_load_stackoverflow) 1970-02-24
AT286448B (de) 1970-12-10

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