Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
  • F21S8/00—Lighting devices intended for fixed installation
  • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
  • F21S8/00—Lighting devices intended for fixed installation
  • F21S8/03—Lighting devices intended for fixed installation of surface-mounted type
  • F21S8/033—Lighting devices intended for fixed installation of surface-mounted type the surface being a wall or like vertical structure, e.g. building facade
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
  • F21S8/00—Lighting devices intended for fixed installation
  • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
  • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
• • 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
  • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
  • F21V29/15—Thermal insulation

Definitions

• a Lamp Fitting The present invention relates to a wall-mounted or ceiling-mounted lamp fitting, comprising an attachment plate which is intended to be secured to a ceiling surface or a wall surface in the vicinity of an electric current outlet, and which attachment plate carries at least one light bulb holder, said holder or holders being intended to be connected electrically to said current outlet on the side of the attachment plate remote from the attachment surface.
• Lamp fittings, lamp suspensions, of this kind are normally intended for two light bulbs and two diametrically located bulb holders are normally provided therefor.
• the attachment plate is normally made of plastic.
• each of the light bulbs is limited to a power of 40 Watts in order to be in accordance with current standards, so-called class 2.
• the installation cable i.e. the cable supplying the outlet, should not lie above 70°C. Naturally, this is limiting from the lighting aspect and results in other consumer-related drawbacks.
• the present invention relates to a lamp suspension which .solves the aforesaid problem and which allows the use of two light bulbs each of 60 Watts within the confines of the class 2 regulation.
• the invention relates to a lamp fitting, a so-called wall-mounted or ceiling-mounted lamp fitting comprising an attachment plate which is intended to be secured to an attachment surface, such as a ceiling surface or a wall surface in the vicinity of an installation cable provided with an electric current outlet and which is intended to support at least one bulb holder, said holder or holders being connected electrically to the current outlet on the side of the attachment plate facing towards the attachment surface.
• the lamp fitting is mainly characterized in that the attachment plate which is intended to lie remote from the attachment surface is provided with a reflecting device which is located at least in the vicinity of an attachment-plate part which is intended to be located in the vicinity of the installation cable, thereby limiting the temperature in the vicinity of said installation cable when the lamp is illuminated.
• Figure 1 illustrates schematically a first embodiment of an inventive, ceiling-mounted lamp fitting, a lamp suspension, said Figure showing the lamp fitting in a horizontal view transversely to the connecting line between the two lamp holders of said fitting;
• Figure 2 shows the lamp fitting of Figure 1 as seen from the left in said Figure.
• Figure 3 shows the lamp fitting of Figures 1 and 2 as seen from beneath in Figure 1.
• FIGS 1-3 illustrate a lamp suspension 1 comprising an attachment plate which is intended to be located in the vicinity of, or in connection with, an electric outlet 2 from which electric current is taken to the lamp installation cable 3.
• the attachment plate is intended to be secured to an attachment surface 4, such as a ceiling surface 4 or a wall, and supports two lamp bulbs 5' each in a respective holder 5, said holders being intended to be connected electrically to the aforesaid outlet 2 on the side of the attachment plate which faces towards the attachment surface 4.
• the illustrated lamp fitting also includes a reflecting device 6 which is seated on the side of the attachment plate remote from the lamp-supporting surface, i.e. on the same side of the plate as that on which the lamps are seated.
• the reflecting device 6 is located at least in the close proximity of an attachment-plate part 7 which lies close to the installation cable,said reflecting device functioning to restrict the temperature in the immediate vicinity of the connection cable when the lamp is illuminated.
• the device 6 is comprised essentially of a metallic-resilient and bright-polished plate 6'. It is also preferred that at least a part of the aforesaid reflecting device is convex in relation to the said attachment surface.
• the reflecting plate has a protruding part 8 which defines a cavity 8' which is intended to face towards and be connected to the installation cable, wherein the reflecting device surrounds the protruding part, either completely or partially.
• a lamp fitting construction which includes two mitually spaced lamp holders with an elongated, protruding part 8 disposed between the holders, wherein said reflecting device extends along the protruding part in a tunnel-like configuration.
• the resilient, bright plate has a generally square or rectangular configuration and includes mutually facing flange parts 9 which coact with stop means 10 provided on the plate, said plate being intended to be bent to a convex shape and to be held in position by the coaction between the flange parts and the stop means.
• the reflexivity of the device 6 will reduce the heat load on the installation cable, by reflecting thermal radiation.
• the area around the installation cable is ventilated through the protruding part of the plate disposed around the cable.
• a prime advantage is that higher lighting powers can be used.
• the inventive fitting can be used together with one or several light bulbs.
• theaforesaid reflecting device need not be metallic, but may also be made of a plastic material provided with a reflecting surface, by chromium plating for instance.
• the actual fitting suspension means may be of any suitable kind.
• the illustrated lamp fitting is suspended, or mounted, by means of a pulling screw 11 which is provided with an eye or loop intended for coaction with a hook 12 fitted to the attachment surface.
• the illustrated fitting attachment plate is provided with spacing dubs 13 which support against the attachment surface.
• outlet in the vicinity of the installation cable may be designed in several ways.
• the design shown is composed by a contact plate 14 attached to the attachment surface but an outlet in the form of a contact freely hanging down is also conceivable.
• the illustrated plate 1 also includes, shown in Fig 3 only, attachment devices 15, which include slotted parts in which an attachment tab or tag can be inserted for holding lamp shade parts or the like to the lamp fitting Reference 16 identifies an internally screw-threaded attachment for lamp shade parts of the like.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Architecture (AREA)
• Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
• Non-Portable Lighting Devices Or Systems Thereof (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=20382063

Family Applications (1)

Country Status (5)

Family Cites Families (4)

• 1991
  • 1991-03-05 SE SE9100646A patent/SE500300C2/sv unknown
• 1992
  • 1992-03-04 EP EP92905657A patent/EP0677161A1/en not_active Ceased
  • 1992-03-04 WO PCT/SE1992/000137 patent/WO1992015822A1/en not_active Application Discontinuation
• 1993
  • 1993-09-06 NO NO933175A patent/NO933175D0/no unknown
  • 1993-09-06 FI FI933890A patent/FI933890A/fi not_active Application Discontinuation

Non-Patent Citations (1)

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