JP2013254719A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture capable of easily and electrically connecting a socket for grounding to a fixture body without using a lead wire.SOLUTION: A lighting fixture includes a conductive plate 4 contacting with a grounding terminal 52A of an LED lamp 5 and conductive thereto, a socket 1 for grounding which stores the conductive plate 4, and a fixture body 6 having an installation section 60 for installing the socket 1 for grounding. A screw 63 for grounding electrically connected with the fixture body 6 is screwed to the installation section 60. A first contact piece 42 exposed from the socket 1 for grounding to the outside is arranged on the conductive plate 4, and the first contact piece 42 pressure-contacts with the screw 63 for grounding when the socket 1 for grounding is installed on the installation section 60.

Description

  The present invention relates to a luminaire using a straight tube lamp as a light source.

  In recent years, with an increase in luminous efficiency of LEDs (light-emitting diodes), LEDs with low power consumption and long life can be used as light sources for lighting devices. For example, in Patent Document 1, an LED substrate is held inside a straight tube type outer tube body, and two caps to be attached to an existing fixture for a straight tube fluorescent lamp are provided at both ends of the outer tube body. A lighting device (LED lamp) is disclosed.

JP 2009-43447 A

  By the way, there is a straight tube type LED lamp in which a ground terminal is provided on a base on one side. For example, the LED lamp in the JEL801 “straight tube LED lamp system with L-shaped pin cap GX16t-5 (for general lighting)” standardized by the Japan Light Bulb Industry Association standard is a pair of power supplies for one cap. A terminal pin is provided, and a terminal pin for grounding is provided on the other base. And in the lighting fixture which uses such an LED lamp as a light source, as shown in FIG. 10, the socket for electric power feeding (not shown) to which the nozzle | cap | die for electric power feeding is mounted | worn, and the earth | ground to which the nozzle | cap | die for earth | ground is mounted | worn The socket 100 is attached to an instrument body (not shown).

  Here, the earthing socket 100 is provided with a conductive plate 101 to which a lamp pin (not shown) of an LED lamp is contacted and connected, and it is necessary to connect the conductive plate 101 to the instrument body and ground it. The grounding socket 100 is provided with an electric wire insertion hole 100A into which one end of the lead wire 102 can be inserted, and the conductive plate 102 is connected to one end of the lead wire 102 inserted into the electric wire insertion hole 100A. A connection terminal portion (not shown) is provided. Further, a crimp terminal 102 </ b> A for screwing to the instrument main body 101 is provided at the other end of the lead wire 102.

  Hereinafter, a method of connecting the conductive plate 101 of the grounding socket 100 to the instrument body will be described. First, one end of the lead wire 102 is inserted into the wire insertion hole 100 </ b> A of the grounding socket 100, and one end of the lead wire 102 is connected to the quick connection terminal portion of the conductive plate 101. Next, the crimp terminal 102A provided at the other end of the lead wire 102 is brought into contact with any surface of the instrument body, and the crimp terminal 102A is screwed to the instrument body. Thereby, the conductive plate 101 of the earthing socket 100 can be electrically connected to the instrument body and grounded.

  However, when the conductive plate 101 of the grounding socket 100 is connected to the instrument body as described above, it is necessary to perform an operation of screwing the lead plate 102 to the instrument body. In this case, it is necessary to provide a crimp terminal 102A at the tip of the lead wire 102, and it is necessary to consider the looseness of the screw even when screwing, and the lead wire 102 is also troublesome to assemble. There is a problem that the wiring work is troublesome.

  The present invention has been made in view of the above points, and an object thereof is to provide a lighting fixture that can easily electrically connect the conductive member of the earth socket to the fixture main body without using a lead wire. And

  The lighting fixture of the present invention includes a conductive member that is in contact with a ground terminal provided on a grounding cap of the lamp, a grounding socket that houses the conductive member therein, and a mounting portion to which the grounding socket is attached. An instrument body, the mounting portion is screwed with a grounding screw electrically connected to the instrument body, the conductive member is provided with a contact piece exposed to the outside from the earth socket, The contact piece is in pressure contact with the grounding screw when the grounding socket is attached to the attachment portion.

  In this lighting apparatus, it is preferable that the grounding screw is screwed behind the mounting position of the grounding socket in the mounting portion.

  In this lighting apparatus, it is preferable that the grounding screw is screwed to a side of the mounting position of the grounding socket in the mounting portion.

  In this lighting apparatus, it is preferable that a plurality of the grounding screws are screwed to the mounting portion, and the plurality of contact pieces that are press-contacted to the grounding screws are provided on the conductive member.

  In this luminaire, it is preferable that the mounting portion is provided with a standing piece protruding toward the inside of the mounting portion, and the grounding screw is screwed to the standing piece.

  In this lighting fixture, when the ground socket is attached to the mounting portion, the ground socket is provided with a recess for guiding a part of the ground screw, and the contact piece is provided in the ground screw within the recess. It is preferable to press contact.

  In the present invention, when the earth socket is attached to the attachment portion of the appliance main body, the contact piece exposed from the earth socket presses against the ground screw electrically connected to the appliance main body. Therefore, in the present invention, the conductive member of the grounding socket can be easily electrically connected to the instrument body without using a lead wire simply by attaching the grounding socket to the mounting part of the instrument body.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows Embodiment 1 of the lighting fixture which concerns on this invention, (a) is a perspective view of a mounting base, (b) is a perspective view of the state which attached the socket for earthing | grounding to the mounting base, (c) is earthing | grounding It is a side view of the state which attached the socket for attachment to the mount. It is a figure which shows the socket for earth | grounding of a lighting fixture same as the above, (a) is a disassembled perspective view, (b) is a perspective view of a finished product. It is explanatory drawing of the LED lamp in a lighting fixture same as the above, (a) is a whole schematic diagram, (b) is a principal part perspective view of a nozzle | cap | die for grounding. It is a figure which shows Embodiment 2 of the lighting fixture which concerns on this invention, (a) is a perspective view of a mounting base, (b) is a front view of the state which attached the socket for earthing | grounding to the mounting base. It is a figure which shows the socket for earth | grounding of a lighting fixture same as the above, (a) is a disassembled perspective view, (b) is a perspective view of a finished product. It is a figure which shows Embodiment 3 of the lighting fixture which concerns on this invention, (a), (b) is a perspective view of both a mounting base, (c) is a side view of the state which attached the socket for earthing | grounding to the mounting base. is there. It is a figure which shows the socket for earth | grounding of a lighting fixture same as the above, (a) is a disassembled perspective view, (b) is a perspective view of a finished product. It is a figure which shows the other structure of a lighting fixture same as the above, (a) is a perspective view of a mounting base, (b) is a perspective view of the state which attached the socket for earthing | grounding to the mounting base. It is a figure which shows the socket for earthing | grounding in the other structure of a lighting fixture same as the above, (a) is a disassembled perspective view, (b) is a perspective view of a finished product. It is a perspective view which shows the socket for earth | ground in the conventional lighting fixture.

(Embodiment 1)
Hereinafter, Embodiment 1 of the lighting fixture which concerns on this invention is demonstrated using drawing. In the following description, the up / down / left / right direction and the front / rear direction are defined by arrows shown in FIG. As shown in FIGS. 1 to 3, the present embodiment includes a grounding socket 1 and a power supply socket (not shown) to which a straight tube type LED lamp 5 can be attached, and an instrument body 6 to which each socket is attached. . Since the power supply socket is conventionally known, a detailed description thereof is omitted here.

  The earthing socket 1 is made of a box having a U-shaped outer shell. As shown in FIGS. 2 (a) and 2 (b), a resin cover 2 having an open rear surface and a resin cover having an open front surface. The body 3 is assembled.

  As shown in FIGS. 1B and 2, the cover 2 includes a semi-disc-shaped front wall 20, a side wall 21 projecting rearward from a peripheral edge of the rear surface excluding an upper portion of the front wall 20, and an upper end of the front wall 20. And a flange portion 22 that protrudes forward and left and right. A pin insertion hole 23 is opened at the lower part of the front wall 20 and the side wall 21 along the vertical direction. A ground terminal 52A of the LED lamp 5, which will be described later, can be slidably inserted into the pin insertion hole 23 along the vertical direction.

  On the upper left side surface and upper right side surface of the side wall 21, a flexible locking piece 24 that protrudes left and right outward is integrally formed. The grounding socket 1 can be attached to the attachment portion 60 by sandwiching each attachment piece 62 of the attachment portion 60 described later between the locking piece 24 and the flange portion 22. Further, the left and right ends of the front wall 20 are provided with recesses 25 each having a circular shape in a plan view that is recessed rearward. A hole (not shown) for inserting each projection 31 of the body 3 described later is provided in the bottom surface of each recess 25.

  As shown in FIG. 2A, the body 3 includes a semicircular main portion 30, a pair of projections 31 (one in the figure) 31 protruding forward from the front surface of the main portion 30, and the main portion 30. A projecting wall 32 projecting forward from the vicinity of the peripheral edge of the front surface is integrally formed. In the upper part of the main portion 30, a rectangular through-hole 33 is provided for allowing the first contact piece 42 of the conductive plate 4 to be described later to pass therethrough. In order to connect the cover 2 and the body 3, first, the protrusions 31 of the body 3 are inserted into the holes of the recesses 25 of the cover 2. And the cover 2 and the body 3 couple | bond together by crushing the front-end | tip part of each processus | protrusion 31 which protrudes from each hole in each recess 25.

  As shown in FIG. 2A, the conductive plate 4 (conductive member) is made of an elastic metal plate, and connects the pair of holding pieces 40 to each other and a pair of holding pieces 40 that hold a grounding terminal 52A described later. Connecting piece 41 to be provided. At the center in the longitudinal direction of each clamping piece 40, a holding portion 40A that is curved in a cross-sectional arc shape toward the left and right outer sides is provided. By sandwiching a terminal head 52B of a ground terminal 52A, which will be described later, between the holding portions 40A, the ground terminal 52A is mechanically held, and the ground terminal 52A and the conductive plate 4 are electrically connected.

  A rectangular plate-shaped first contact piece 42 that protrudes rearward as it goes upward is integrally formed at the upper end of the connecting piece 41. The first contact piece 42 is biased rearward and protrudes to the outside through the through hole 33 of the body 3 as shown in FIG. A contact portion 42A having a semicircular shape in plan view is provided at the upper end portion of the first contact piece 42. The contact portion 42A is in contact with the outer peripheral surface of a shaft portion 63A of a grounding screw 63 described later. For this reason, compared with the case where the upper end part of the 1st contact piece 42 is a flat shape, the 1st contact piece 42 becomes easy to press-contact with the axial part 63A.

  As shown in FIG. 3A, the LED lamp 5 includes a straight tube-shaped lamp body 50. At both ends in the longitudinal direction of the lamp main body 50, a power supply base 51 and a ground base 52 are provided. A pair of plate-shaped power supply terminals 51 </ b> A are provided on the power supply base 51 in a protruding manner. The grounding cap 52 is provided with a round bar-shaped grounding terminal 52A. As shown in FIG. 3B, a terminal head 52B having an oval shape in plan view is integrally formed at the tip of the ground terminal 52A.

  Here, a method for attaching the grounding cap 52 of the LED lamp 5 to the grounding socket 1 will be described. First, the ground terminal 52A of the grounding cap 52 is inserted into the pin insertion hole 23 of the grounding socket 1 in a state where the longitudinal direction of the terminal head 52B is along the vertical direction. Then, by rotating the terminal head portion 52B clockwise or counterclockwise, both end portions in the longitudinal direction of the terminal head portion 52B are sandwiched between the holding portions 40A of the conductive plate 4. As a result, the grounding cap 52 can be attached to the grounding socket 1. In addition, since the method of attaching the power supply cap 51 of the LED lamp 5 to the power supply socket is well known in the art, the description thereof is omitted here.

  Inside the lamp body 50, although not shown, a substrate on which a plurality of LEDs are mounted is housed, and the anode and cathode of these LEDs are electrically connected to a pair of power supply terminals 51A. Therefore, the LED lamp 5 can be turned on by attaching the power supply base 51 to the power supply socket and supplying the lighting power to each LED via each power supply terminal 51A. In the present embodiment, the LED lamp 5 is adopted, but other lamps may be used as long as the lamp has the grounding cap 52.

  The instrument body 6 is formed of a metal box that is long along the longitudinal direction of the LED lamp 5. The surface of the instrument body 6 is coated with rust prevention. At both ends in the longitudinal direction of the appliance main body 6, as shown in FIG. 1A, attachment portions 60 for attaching a power feeding socket (not shown) and the grounding socket 1 are provided. In FIG. 1A, only the mounting portion 60 of the grounding socket 1 among the mounting portions 60 is illustrated. As shown in FIG. 1A, the attachment portion 60 has an attachment hole 61 formed by bending a metal plate constituting the instrument body 6 and notching from the front surface to the rear surface. A pair of attachment pieces 62 for holding the earth socket 1 are integrally formed on the inner peripheral edge of the attachment hole 61. Each mounting piece 62 protrudes from the left and right sides of the inner peripheral edge of the mounting hole 61 in a direction approaching each other.

  An insertion hole (not shown) for fixing a grounding screw 63 such as a tapping screw is provided in the rear portion of the mounting hole 61 on the lower surface of the mounting portion 60, and grounding is made in this insertion hole. The screw 63 is screwed. The grounding screw 63 is screwed so that the head 63B is positioned below the mounting portion 60. Thus, by screwing the grounding screw 63 to the insertion hole, the coating on the inner peripheral edge of the insertion hole is peeled off, and the shaft portion 63A of the grounding screw 63 is brought into contact with the inner peripheral edge of the insertion hole. Therefore, the grounding screw 63 is electrically connected to the instrument body 6.

  Hereinafter, a method for attaching the grounding socket 1 to the instrument body 6 and a method for electrically connecting the conductive plate 4 to the instrument body 6 will be described. First, the position is adjusted so that each mounting piece 62 of the mounting portion 60 is inserted between each locking piece 24 of the grounding socket 1 and the flange portion 22, and the grounding socket 1 is slid rearward. Thereby, since each attachment piece 62 is clamped between each locking piece 24 and the flange part 22, the socket 1 for earthing | grounding can be attached to the attachment part 60 (refer FIG.1 (b)).

  Here, when the grounding socket 1 is slid rearward, the first contact piece 42 exposed to the outside through the through-hole 33 of the body 3, as shown in FIG. It contacts the shaft portion 63A. Since the first contact piece 42 is urged rearward, the first contact piece 42 is pressed against the shaft portion 63A by this urging force. Therefore, the conductive plate 4 can be electrically connected to the instrument body 6 via the first contact piece 42 and the grounding screw 63 to be grounded.

  As described above, in the present embodiment, the first contact piece 42 exposed from the ground socket 1 is electrically connected to the instrument body 6 when the ground socket 1 is attached to the attachment portion 60 of the instrument body 6. Press contact with the grounding screw 63. Therefore, in the present embodiment, the conductive plate 4 (conductive member) of the grounding socket 1 can be easily electrically connected to the device main body 6 without using a lead wire only by attaching the grounding socket 1 to the mounting portion 60 of the device main body 6. Can be connected. Moreover, in this embodiment, since the coating applied to the surface of the instrument main body 6 can be peeled only by screwing the grounding screw 63 to the instrument main body 6, it is not necessary to separately perform the work of stripping the paint.

(Embodiment 2)
Hereinafter, Embodiment 2 of the lighting fixture which concerns on this invention is demonstrated using drawing. However, since the basic configuration of the present embodiment is common to that of the first embodiment, common portions are denoted by the same reference numerals and description thereof is omitted. As shown in FIGS. 4A and 4B, the present embodiment is characterized in that a plurality (two in the drawing) of grounding screws 63 are provided. In the present embodiment, since the first contact piece 42 does not need to be exposed to the rear, the through hole 33 is not provided in the main portion 30 of the body 3.

  Each attachment piece 62 of the attachment portion 60 is provided with insertion holes (not shown), and grounding screws 63 are respectively screwed into the insertion holes (see FIG. 4A). Each grounding screw 63 is screwed so that its head 63B is positioned below the mounting portion 60. Thus, by screwing each grounding screw 63 to each insertion hole, the coating on the inner peripheral edge of each insertion hole is peeled off, and each shaft portion 63A of each grounding screw 63 is in contact with the inner peripheral edge of the insertion hole. To do. Accordingly, each grounding screw 63 is electrically connected to the instrument body 6.

  As shown in FIG. 5A, second contact pieces 43 that protrude outward in the left-right direction are integrally formed at the upper end portion of each clamping piece 40 of the conductive plate 4. Since the first contact piece 42 is not necessary in the present embodiment, the first contact piece 42 is not provided on the conductive plate 4. Each second contact piece 43 is urged outward in the left-right direction, and as shown in FIG. 5B, a grounding socket is provided through a notch 22A formed by notching the left and right side walls of the flange portion 22. 1 is exposed to the outside.

  Hereinafter, a method for electrically connecting the conductive plate 4 to the instrument body 6 will be described. The method for attaching the grounding socket 1 to the appliance main body 6 is the same as that of the first embodiment, and therefore the description thereof is omitted here.

  When the grounding socket 1 is slid rearward to be attached to the attachment portion 60, as shown in FIG. 4B, the second contact pieces 43 exposed to the outside through the notches 22A of the cover 2 are The shaft 63A of the grounding screw 63 is contacted. Since each second contact piece 43 is urged outward in the left-right direction, the second contact piece 43 is pressed against each shaft portion 63A by this urging force. Therefore, the conductive plate 4 can be electrically connected to the instrument body 6 through the second contact pieces 43 and the grounding screws 63 to be grounded.

  As described above, in the present embodiment, when the earth socket 1 is attached to the attachment portion 60 of the instrument body 6, the two second contact pieces 43 exposed from the earth socket 1 are electrically connected to the instrument body 6. The two grounding screws 63 connected are pressed against each other. Therefore, in this embodiment, the conductive plate 4 can be electrically connected to the instrument body 6 and grounded more reliably than in the first embodiment.

  By the way, when the ground socket 1 is slid rearward to be attached to the attachment portion 60, the corners of the second contact pieces 43 are caught on the shaft portions 63A of the ground screws 63, thereby preventing the ground socket 1 from sliding. There is a fear. Therefore, in the present embodiment, as shown in FIG. 5A, a taper 43 </ b> A that extends in the left-right direction from the rear to the front is provided at the tip of each second contact piece 43. Therefore, when the grounding socket 1 is slid rearward, the shaft portion 63A of each grounding screw 63 is guided by the taper 43A of each second contact piece 43, which prevents the grounding socket 1 from being slid. Absent.

(Embodiment 3)
Hereinafter, Embodiment 3 of the lighting fixture which concerns on this invention is demonstrated using drawing. However, since the basic configuration of the present embodiment is common to that of the first embodiment, common portions are denoted by the same reference numerals and description thereof is omitted. In the present embodiment, as shown in FIGS. 6A and 6B, a first upright piece 64 protruding upward is integrally formed at the rear end of the attachment hole 61 of the attachment portion 60, and the first upright piece 64. The grounding screw 63 is screwed to. In other words, the present embodiment is characterized in that the grounding screw 63 is disposed inside the mounting portion 60. The grounding screw 63 is screwed so that the head 63B is positioned in front of the first upright piece 64.

  A rectangular plate-like third contact piece 44 that protrudes upward is integrally formed at the upper end of the connecting piece 41 of the conductive plate 4. Since the first contact piece 42 is not necessary in the present embodiment, the first contact piece 42 is not provided on the conductive plate 4. Each third contact piece 44 can be bent along the front-rear direction, and is exposed to the outside of the ground socket 1 through the through-hole 33 of the body 3 as shown in FIG.

  Hereinafter, a method for electrically connecting the conductive plate 4 to the instrument body 6 will be described. The method for attaching the grounding socket 1 to the appliance main body 6 is the same as that of the first embodiment, and therefore the description thereof is omitted here.

  When the grounding socket 1 is slid rearward to be attached to the attachment portion 60, the third contact piece 44 exposed to the outside through the through-hole 33 of the body 3 becomes the grounding screw as shown in FIG. 63 head 63B is contacted. At this time, the third contact piece 44 bends forward by contacting the head 63B. And the 3rd contact piece 44 press-contacts to the head 63B with the urging | biasing force which returns to back. Therefore, the conductive plate 4 can be electrically connected to the instrument body 6 via the third contact piece 44 and the grounding screw 63 to be grounded.

  As described above, in the present embodiment, the third contact piece 44 exposed from the ground socket 1 is electrically connected to the instrument body 6 when the ground socket 1 is attached to the attachment portion 60 of the instrument body 6. Press contact with the grounding screw 63. Therefore, in the present embodiment, similarly to the first embodiment, the conductive plate 4 of the earth socket 1 can be easily electrically connected to the instrument body 6 without using a lead wire.

  In the present embodiment, the grounding screw 63 is screwed to the first upright piece 64 so as to be disposed inside the mounting portion 60. For this reason, when the earthing socket 1 is attached to the attachment part 60, the earthing screw 63 is covered by the earthing socket 1. Therefore, in this embodiment, since a person does not visually recognize the grounding screw 63, it is possible to prevent the appearance from being impaired by attaching the grounding screw 63 to the instrument body 6.

  In addition, even when the grounding screw 63 is located outside the attachment portion 60, it is possible to configure so that a person does not visually recognize the grounding screw 63. Hereinafter, this configuration will be described with reference to the drawings. In this configuration, as shown in FIGS. 8A and 8B, a second upright piece 65 projecting forward is integrally formed at the rear end of the attachment hole 61 of the attachment portion 60, and the second upright piece 65 is formed on the second upright piece 65. The grounding screw 63 is screwed. The grounding screw 63 is screwed so that the head 63 is positioned below the second upright piece 65.

  A fourth contact piece 45 is integrally formed at the upper end of the connecting piece 41 of the conductive plate 4 so as to protrude forward as it goes upward. The fourth contact piece 45 is biased upward. As shown in FIG. 9B, the fourth contact piece 45 is exposed to the outside of the earth socket 1 through a semicircular recess 26 in plan view provided in the flange portion 22 so as to be recessed downward. .

  Hereinafter, a method for electrically connecting the conductive plate 4 to the instrument body 6 will be described. The method for attaching the grounding socket 1 to the appliance main body 6 is the same as that of the first embodiment, and therefore the description thereof is omitted here.

  When the grounding socket 1 is slid rearward to be attached to the attachment portion 60, the head portion 63 </ b> B of the grounding screw 63 is guided to the concave portion 26 of the flange portion 22 through the through hole 33 of the body 3. And the 4th contact piece 45 exposed outside through the recessed part 26 contacts the head 63B of the screw 63 for grounding (refer FIG.8 (b)). At this time, the fourth contact piece 45 bends downward by contacting the head 63B. And the 4th contact piece 45 press-contacts to the head 63B with the urging | biasing force which returns upwards. Therefore, the conductive plate 4 can be electrically connected to the instrument body 6 via the fourth contact piece 45 and the grounding screw 63 to be grounded.

  In this configuration, the head 63 </ b> B of the grounding screw 63 exposed on the lower side of the mounting portion 60 can be covered with the grounding socket 1. Therefore, since the person does not visually recognize the grounding screw 63, it is possible to prevent the appearance from being impaired by attaching the grounding screw 63 to the instrument body 6.

1 Socket for grounding 4 Conductive plate (conductive member)
42 1st contact piece (contact piece)
5 LED lamp (lamp)
52 Grounding base 52A Grounding terminal 6 Instrument body 60 Mounting part 63 Grounding screw

Claims (6)

  A conductive member that is in contact with and connected to a ground terminal provided on a grounding cap of the lamp, a grounding socket that houses the conductive member therein, and an appliance main body having an attachment portion to which the grounding socket is attached, The mounting portion is screwed with a grounding screw that is electrically connected to the instrument body, and the conductive member is provided with a contact piece that is exposed to the outside from the grounding socket. When the socket is attached to the attachment portion, the lighting fixture is in pressure contact with the grounding screw.   The lighting fixture according to claim 1, wherein the grounding screw is screwed behind a mounting position of the grounding socket in the mounting portion.   The lighting fixture according to claim 1, wherein the grounding screw is screwed to a side of a mounting position of the grounding socket in the mounting portion.   The lighting fixture according to claim 1, wherein a plurality of the grounding screws are screwed to the mounting portion, and the plurality of contact pieces that are pressed against the grounding screws are provided on the conductive member.   The lighting device according to claim 1, wherein a standing piece protruding toward an inner side of the attachment portion is provided on the attachment portion, and the grounding screw is screwed to the standing piece.   The grounding socket is provided with a recess for guiding a part of the grounding screw when the grounding socket is attached to the mounting portion, and the contact piece is pressed against the grounding screw in the recess. The lighting fixture according to claim 1.

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