EP0190052B1 - Lighting fixture hanging unit - Google Patents

Lighting fixture hanging unit Download PDF

Info

Publication number
EP0190052B1
EP0190052B1 EP86300649A EP86300649A EP0190052B1 EP 0190052 B1 EP0190052 B1 EP 0190052B1 EP 86300649 A EP86300649 A EP 86300649A EP 86300649 A EP86300649 A EP 86300649A EP 0190052 B1 EP0190052 B1 EP 0190052B1
Authority
EP
European Patent Office
Prior art keywords
wires
unit
wire
support
lighting fixture
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
Application number
EP86300649A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0190052A3 (en
EP0190052A2 (en
Inventor
Masaharu Kitamura
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.)
KUROI GARASU KOUGYO CO Ltd
Original Assignee
KUROI GARASU KOUGYO CO Ltd
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 KUROI GARASU KOUGYO CO Ltd filed Critical KUROI GARASU KOUGYO CO Ltd
Publication of EP0190052A2 publication Critical patent/EP0190052A2/en
Publication of EP0190052A3 publication Critical patent/EP0190052A3/en
Application granted granted Critical
Publication of EP0190052B1 publication Critical patent/EP0190052B1/en
Expired 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
    • F21V21/002—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips making direct electrical contact, e.g. by piercing

Definitions

  • This contrivance relates to a unit for hanging lighting fixture (called the unit in the following text) to support lighting fixtures and also as the electrical wiring.
  • unit A of this kind is made of a pair of conducting wires (1, 2) fixed to upper and lower insulating supports (3, 4) with spacing between the wires and of the hooks (1a, 1b, 2a, 2b) formed at both ends of the wires (1, 2).
  • the upper hooks (1a, 2a) of the wires (1, 2) are hung from the fittings (5, 6) projected from the ceiling as shown in Fig. 5 for example, and the upper hooks (1a, 2a) of the wires (1, 2) of another unit A are hung from the lower hooks (1b, 2b) of the first unit, then the required number of units A are suspended in the same manner in order.
  • the wires (7, 8) of the lighting fixture B such as a lamp are hooked from the specified points of the pair of wires (1, 2) of each unit A.
  • the hooks (5, 6), the wires (1, 2) of the unit A, and the wires (7, 8) of the lighting fixture are electrically connected, and there is no need to perform connection of the lighting fixture B or support and the electrical wiring separately at the time of installation.
  • the work for connection or support can complete the electrical wiring work at the same time.
  • the length of the pair of wires (1, 2) of unit A is different, the length (L2) of one wire (2) may be somewhat shorter than the length (L1) of the other wire (1) as shown in Fig. 4.
  • the foregoing object is accomplished by a unit according to claim 1.
  • the unit by this invention is provided with an elastic and expandable bend in the middle of the wires and the wires are held by the supports so as to slide freely.
  • a pair of conductive wires (1, 2) are held at two places by the insulating supports (3, 4) with spacing between the wires.
  • These supports (3, 4) are made of a pair of split members (synthetic resin molds for example) (31, 41) combined together as shown in the drawing.
  • the lower support (4) has an L-groove (42) to accept the wires as shown in Fig. 2.
  • the groove width at the horizontal part (42a) of this L-groove (42) is set larger than the outside diameter of the wire housed in the L-groove (42), the wire (2) for example, so that the wire (2) housed in the L-groove (42) can slide up and down within a certain range.
  • the other wire (1) is also held by the support (4) so as to slide freely.
  • the pair of wires (1, 2) are also held by the upper support (3) so as to slide freely.
  • the upper support (3) is provided with a stopper (not illustrated) to prevent dropping of the wires (1, 2).
  • the pair of wires (1, 2) are bent in the middle as is evident from Fig. 1, and the bent parts are positioned symmetrically.
  • the wires (1, 2) are also provided with a dent (12, 22) onto which a lighting fixture is hooked. (See Fig. 5.)
  • the bent parts (11, 21) can expand freely against elasticity of the wires (1, 2), and expansion of the wires (1, 2) is allowed by slide displacement of the wires (1, 2) in the L-groove (42) provided on the support (4).
  • the linked units in suspended condition are free from any malcontact between the wires.
  • Fig. 3 shows another embodiment.
  • the bends (11, 21) of the wires (1, 2) are formed in arc shape.
  • the lower support (4) forms the fitting parts (43a, 43b) to the projected bends (13, 23) made on the wires (1, 2).
  • the bend (21) of the wire (2) is expanded to the same length as the wire (1), as shown by an imaginary line in the drawing, when another unit is suspended from the hooks (1 b, 2b) of the wires (1, 2) and the hook (2b) is set at the same height as the hook (1b). No malcontact, therefore, is caused.
  • the bends of the wires can be ]-shape as illustrated, or in arc shape or any other shape. When shaped to arc-form, however, expansion of the bends against elasticity of the wires is better.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
EP86300649A 1985-01-30 1986-01-30 Lighting fixture hanging unit Expired EP0190052B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1985013210U JPH0127211Y2 (enrdf_load_stackoverflow) 1985-01-30 1985-01-30
JP13210/85U 1985-01-30

Publications (3)

Publication Number Publication Date
EP0190052A2 EP0190052A2 (en) 1986-08-06
EP0190052A3 EP0190052A3 (en) 1987-06-03
EP0190052B1 true EP0190052B1 (en) 1989-10-04

Family

ID=11826789

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86300649A Expired EP0190052B1 (en) 1985-01-30 1986-01-30 Lighting fixture hanging unit

Country Status (3)

Country Link
EP (1) EP0190052B1 (enrdf_load_stackoverflow)
JP (1) JPH0127211Y2 (enrdf_load_stackoverflow)
DE (1) DE3666096D1 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113685787B (zh) * 2021-10-26 2021-12-31 深圳市润格光电科技有限公司 一种对意外坠落灯具进行防护的悬挂装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR365362A (fr) * 1906-04-18 1906-09-07 Fernand Cochet Supports pour lampes à incandescence, permettant leurs connexions meme sans emploi de fils conducteurs
GB609461A (en) * 1946-03-15 1948-09-30 Claude Henry Kyne Improvements relating to protecting electrical and other apparatus against shock vibrations

Also Published As

Publication number Publication date
JPH0127211Y2 (enrdf_load_stackoverflow) 1989-08-15
JPS61127502U (enrdf_load_stackoverflow) 1986-08-11
EP0190052A3 (en) 1987-06-03
DE3666096D1 (en) 1989-11-09
EP0190052A2 (en) 1986-08-06

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