JP2012243392A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture capable of simplifying maintenance works and improving work efficiency.SOLUTION: The lighting fixture includes a fixture body 1, a light source part 4, a front member 2 having a front member aperture emitting light of the light source 4 and a lighting device 5 controlling lighting of the light source part 4, and mounting jigs 3 which detachably attach the front member 2 to the fixture body 1 through the through-holes formed on the front wall attaching the front member aperture.

Description

  Embodiments described herein relate generally to a lighting device including a light source unit and a lighting device that controls lighting of the light source unit.

2. Description of the Related Art Conventionally, for example, a lighting fixture used for an interior lamp in a vehicle such as a bus or a railway vehicle has a fixture main body installed on a ceiling surface (installed portion) of the vehicle, and a straight tube fluorescent lamp is provided on the fixture main body. And a lighting device for controlling the lighting of the light source unit.
In such a lighting fixture, maintenance such as repair and replacement of the light source unit and the lighting device may be necessary.

JP 2008-296774 A

  However, in the above-described lighting fixture, when performing maintenance work, it is necessary to remove the fixture main body, that is, the entire lighting fixture from the installation portion, and repair or replace the light source unit or the lighting device. For this reason, a maintenance work becomes complicated and the problem that the work efficiency falls arises.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a lighting apparatus capable of simplifying maintenance work and improving work efficiency.

  The lighting fixture by embodiment of this invention is provided with the fixture main body. Further, a front member having a light source part, a front member opening for emitting light from the light source part, and a lighting device for controlling lighting of the light source part, and a through hole formed on the front wall provided with the front member opening And a fitting for removably attaching the front member to the instrument body.

  According to the embodiment of the present invention, it is possible to provide a lighting apparatus capable of simplifying maintenance work and improving work efficiency.

It is a perspective view which shows the lighting fixture which concerns on embodiment of this invention. It is a perspective view which shows the attachment state of the lighting fixture. It is a top view which shows the back side of the instrument main body in the lighting fixture. It is a perspective view which shows the back side of the front member in the lighting fixture. It is a perspective view which shows the cover in the lighting fixture seeing from the front side. It is a perspective view which shows the cover in the same lighting fixture seeing from the back side. It is a partial expansion perspective view of the cover in the lighting fixture. It is a perspective view which expands and shows a part in the lighting fixture. In the lighting fixture, it is explanatory drawing which shows the state which attaches a front member to a fixture main body. In the same lighting fixture, it is a partial perspective view which shows a fixture main body seen from the front side. In the lighting fixture, it is a partial perspective view which shows the positioning state of a front member seeing from the back side.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 11. In the present embodiment, a lighting fixture used as an interior lamp in a vehicle such as a bus or a train is shown.

  FIG. 1 is a perspective view of a lighting fixture, FIG. 2 is a perspective view showing a mounting state of a front member in a state in which the fixture main body is attached to an installation portion, and FIG. FIG. 4 shows the back side of the front member. 5 to 7 show a cover, FIG. 8 shows a partially enlarged perspective view of the front side of the lighting fixture, and FIG. 9 shows an enlarged view of a state in which a front member is attached to the fixture body. .

  10 and 11 show a state in which the front member is positioned on the instrument main body by the temporary fixing means. FIG. 10 is a partial perspective view showing the instrument main body as viewed from the front side. It is a partial perspective view which shows the positioning state of a front member seeing from the back side. In addition, the same code | symbol is attached | subjected to the same part in each figure, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 1 to FIG. 4, the lighting fixture includes a fixture main body 1 attached to an installation part C such as a ceiling surface of a vehicle, a front member 2 detachably attached to the fixture main body 1, and the front member. And an attachment 3 for attaching 2 to the instrument body 1. The front member 2 is provided with a light source unit 4, a lighting device 5 that controls the lighting of the light source unit 4, and a translucent cover 6 that covers the light source unit 4. Therefore, the light source unit 4, the lighting device 5 and the cover 6 are disposed on the front member 2 to form a unit.

  As representatively shown in FIGS. 2, 3, and 9, the instrument body 1 is formed in a long shape by a metal plate such as a hot dip galvanized steel plate, and on both sides along the longitudinal direction, the front side. A bent side wall 11 bent in a step shape is formed.

Moreover, the substantially U-shaped attachment metal fitting 12 which has a pair of fixing piece 12a is provided in the both ends of the longitudinal direction of the instrument main body 1. As shown in FIG. Specifically, the mounting bracket 12 is attached by fixing the fixed piece 12 a to the bent side wall 11. The mounting bracket 12 is formed with a circular insertion hole 12b through which the fixture 3 described later is inserted. On the back side of the mounting bracket 12, a locking means made of a wire formed in an S shape is formed. Reference numeral 13 denotes a mounting screw.
In such a mounted state of the locking means 13, the locking means 13 is arranged so as to cross the insertion hole 12b.

  Further, a pair of temporary fixing means 14 are attached to the bent side walls 11 on both sides with a predetermined interval in the longitudinal direction. As shown in FIG. 10, with reference to FIG. 10, the temporary fixing means 14 is an elastic piece that is bent in a substantially square shape and is screwed from the back side. The elastic piece has a configuration that is slightly expanded in the width direction of the instrument body 1 and is elastically deformable in the width direction.

  The number of temporary fixing means 14 can be appropriately selected according to the design. In this case, fitting holes 23a to be described later with which the temporary fixing means 14 are engaged are formed according to the number of the temporary fixing means 14.

  As representatively shown in FIGS. 1, 2, and 4, the front member 2 is formed in a substantially box shape by a metal plate, and has a long shape like the instrument body 1. The front member 2 has a front wall 21, a back wall 22, a side wall 23, and an end wall 24.

The front wall 21 includes a horizontally long main surface 21a having a substantially rectangular shape and an inclined surface 21b continuous with the main surface 21a. The main surface 21a is formed with a horizontally long rectangular opening 21c in which the light source unit 4 and the cover 6 are disposed, that is, a front member opening.
Further, through holes 21d (see also FIG. 4 and FIG. 9) are formed on both end sides of the main surface 21a, and the fixture 3 is inserted therethrough.

  The side wall 21 is provided so as to protrude from the front wall 21 to form a box-shaped space, and the box-shaped space is provided with a back wall 22 provided substantially parallel to the front wall. ing.

  As shown in FIG. 4, the back wall 22 has a horizontally long rectangular shape, and at both ends in the longitudinal direction, a rectangular opening 22 a that faces the through hole 21 d and faces the mounting bracket 12. Is formed. A screw through hole 22b is formed near the inside of the opening 22a. An attachment screw 22c for attaching the cover 6 to the front member 2 from the back side is inserted into the screw through hole 22b. Further, the light source unit 4 is provided on the front wall 21 side of the back wall 22 and on the opposite side of the front wall 21 side on which the light source unit 4 is provided on the back wall 22, that is, on the other surface side. The lighting device 5 is attached.

  Next, a substantially rectangular fitting hole 23 a into which an elastic piece as the temporary fixing means 14 provided in the instrument main body 1 is fitted is formed inside the side wall 23. Therefore, as will be described later, the front member 2 is temporarily fixed to the instrument body 1 and positioned by the temporary fixing means 14 engaging with the fitting hole 23a.

  As shown in FIG.1 and FIG.2, the light source part 4 is an LED module comprised from several rectangular board | substrate and several LED as a light source mounted in this board | substrate. The substrates are arranged in the longitudinal direction.

  An insulating material such as glass epoxy or paper phenol is used for the substrate, and a wiring pattern made of copper foil is applied on the surface side. Further, a resist layer is appropriately applied. In addition, when the material of the substrate is made of metal, a metal base substrate in which an insulating layer is laminated on one surface of a base plate having good thermal conductivity and excellent heat dissipation such as aluminum is applied. It is preferable to do this.

  The LED is a surface mount type LED package. In general, it is composed of an LED chip disposed in a main body formed of ceramics or synthetic resin, and a translucent resin for molding such as epoxy resin or silicone resin for sealing the LED chip. .

  The LED chip is a blue LED chip that emits blue light. In the translucent resin, a phosphor is mixed, and in order to be able to emit white light, a yellow phosphor that emits yellow light that is complementary to blue light is used. Yes.

The LED may be mounted directly on the substrate, or a bullet-type LED may be mounted, and the mounting method and type are not particularly limited.
The light source unit 4 configured in this manner is attached and disposed on the front side of the rear wall 22 of the front member 2.

  The lighting device 5 is attached to the back wall 22 of the front member 2 as described above. The lighting device 5 is configured by housing circuit components in a box-like case, and is connected to a commercial AC power source AC and receives the AC power source AC to generate a DC output. The lighting device 5 is configured, for example, by connecting a smoothing capacitor between output terminals of a full-wave rectifier circuit, and connecting a DC voltage conversion circuit and current detection means to the smoothing capacitor. The lighting device 5 may be connected to an external DC power source DC, receive the DC power source DC, and supply a DC output to the LED. Therefore, the lighting device 5 is connected to the LED module, supplies its DC output to the LED, and controls the lighting of the LED.

  As shown in FIGS. 1, 2, and 5 to 6, the cover 6 has translucency, is formed in an elongated shape with a semicircular side section, and covers the light source unit 4. It has become. The cover 6 is formed of a transparent acrylic resin or the like, and glass fiber paper is stuck on the surface side thereof. Thereby, the cover 6 has a function of diffusing light.

  In addition, metal mounting plates 61 are provided on the open side of the semicircular shape at both ends of the cover 6. The mounting plate 61 is formed with a screw hole 61a into which the mounting screw 22c is screwed.

  The cover 6 configured as described above is disposed in the opening 21c of the front member 2, and as shown in FIG. 4, the screw through hole 22b of the front member 2 is inserted from the back side and screwed into the screw hole 61a of the cover 6. It is attached by a mounting screw 22c.

  The fixture 3 is a set screw member that attaches the front member 2 to the instrument body 1. As representatively shown in FIG. 9, the fixture 3 has a circular head 31 and a cylindrical shaft extending from the head 31. Part 32 is provided. An operation groove 31 a is formed in the head portion 31 in the diameter direction. The operation groove 31a has, for example, a width dimension in which a coin can be inserted. Accordingly, the coin 3 can be inserted into the operation groove 31a and the fixture 3 can be rotated.

In addition, the shaft portion 32 is formed with an introduction slit 32a along the axial direction in the diameter direction, and further, a locking slit 32b is formed in the circumferential direction so as to be continuous from the end portion of the introduction slit 32a. Has been.
Next, the installation state of the lighting fixture and the attachment state of the front member 2 to the fixture body 1 will be described mainly with reference to FIGS.

  As shown in FIG. 2, the instrument main body 1 is attached to the installation part C by a mounting bolt or the like (not shown) so that the back side thereof is in contact with the installation part C. In addition, a power line led out from the back side of the installation part C through a through hole formed in the instrument body 1 is connected to the lighting device 5.

  In a state where the instrument main body 1 is attached to the installation part C, the front member 2 is attached to the instrument main body 1. Specifically, the front member 2 is supported with both hands, and the back side is pushed up toward the instrument body 1. At this time, as representatively shown in FIGS. 10 and 11, a temporary fixing means 14 is provided on the bent side wall 11 of the instrument body 1, and the temporary fixing means 14 is provided on the side wall 23 of the front member 2. And then elastically deformed inward, and then elastically restored to fit into the fitting hole 23a. For this reason, the front member 2 is temporarily fixed to the instrument body 1 and positioned and held.

  Further, in this state, the mounting bracket 12 attached to the instrument main body 1 is inserted into and fitted into the opening 22a formed in the back wall 22 of the front member 2, and at the same time the locking means 13 is inserted. (See FIG. 9).

  In the temporarily fixed state of the front member 2, the front member 2 is fixedly attached to the instrument body 1 by the fixture 3. As shown in FIG. 9, the shaft portion 32 of the fixture 3 is inserted through the through hole 21d from the front wall 21 side of the front member 2, and further, the insertion hole 12b formed in the mounting bracket 12 is inserted, and the introduction slit 32a is inserted. The locking means 13 made of a wire is introduced into the wire.

  Subsequently, using a coin or the like, the coin 13 or the like is inserted into the operation groove 31a in the head 31 of the fixture 3 and the fixture 3 is rotated by a predetermined angle so that the locking means 13 is engaged with the locking slit 32b. Operate to match. The front member 2 is attached to the instrument body 1 by performing such an operation of the fixture 3 at two locations on both ends of the front member 2.

  In this case, since the front member 2 is pre-positioned on the instrument main body 1, it is easy to perform the mounting operation, and the rotation operation of the mounting tool 3 can be performed without using a special tool such as a screwdriver. It becomes good.

  When power is supplied to the lighting device 5 in the installation state of the lighting fixture, the LED module in the light source unit 4 is energized and the LED emits light. The light emitted from the LED is transmitted through the front side and both end sides of the cover 6, that is, transmitted through substantially the entire circumference and diffused, and is irradiated to a predetermined range.

  Further, heat is generated with the light emission of the LED. This heat is conducted to the rear wall 22 of the front member 2 through the substrate, and further conducted to the entire front member 2 to be radiated.

  According to the configuration of the lighting fixture as described above, when performing maintenance work such as repair and replacement of the light source unit 4 and the lighting device 5, the front member 2 is removed from the installation unit 1 without removing the fixture body 1 from the installation portion. Work can be done by removing from the. That is, since the light source unit 4, the cover 6, and the lighting device 5 are arranged on the front member 2 as a unit, removing the front member 2 allows maintenance work such as repair and replacement of these parts. Can be done. In addition, although it is preferable to provide the cover 6, the cover 6 is not an essential component.

In other words, since the lighting fixture of this embodiment is divided into two parts, the fixture main body 1 attached to the installation portion and the front member 2 detachably attached to the fixture main body 1, the maintenance work is simplified. The working efficiency can be improved.
Further, when the front member 2 is attached or detached, the operation of the fixture 3 can be performed without using a tool, so that workability is improved.
Furthermore, when attaching the front member 2 to the instrument main body 1, since the front member 2 is positioned in advance, the effect that it is easy to perform attachment work can be produced.
As described above, according to the present embodiment, it is possible to provide a lighting apparatus capable of simplifying maintenance work and improving work efficiency.

  In addition, this invention is not limited to the structure of the said embodiment, A various deformation | transformation is possible in the range which does not deviate from the summary of invention. For example, the fixture is not limited to the configuration of the set screw member of the above embodiment. What is necessary is just a member which can attach a front member to an instrument main body so that attachment or detachment is possible.

1 ... instrument body, 2 ... front member,
3 ... fixture, 4 ... light source part (LED module),
5 ... lighting device, 6 ... cover,
12 ... Mounting bracket, 13 ... Locking means,
14 ... Temporary fixing means, 21 ... Front wall,
21c: front member opening, 21d: through hole,
22 ... back wall, 22a ... back wall opening,
23 ... side wall, 31 ... head,
32 ... shaft, 32a ... introduction slit,
32b... Locking slit, C.

Claims (3)

An instrument body;
A front member having a light source part, a front member opening for emitting light from the light source part, and a lighting device for controlling lighting of the light source part;
A fitting that is inserted into a through-hole formed on the front wall provided with the front member opening and removably attaches the front member to the instrument body;
The lighting fixture characterized by comprising. The front member includes a front wall having a front member opening and a through hole, a side wall that protrudes from the front wall and forms a box-like space, and a box-like space formed by the front wall and the side wall. And a rear wall provided substantially parallel to the front wall,
The lighting apparatus according to claim 1, wherein the light source unit is provided on the front wall side of the rear wall, and the lighting device is provided on the other surface side of the rear wall on which the light source unit is provided. Locking means provided on the instrument body;
A back wall opening provided in the back wall while allowing the locking means to pass therethrough;
The fixture includes a head, a slit extending in the diametrical direction and extending along the axial direction, and a locking slit formed in the circumferential direction so as to continue from the end of the slit. And a cylindrical shaft portion having
The front member is fixed to the instrument body by inserting the shaft portion of the fixture through the through hole, introducing the locking means inserted through the back wall opening into the introduction slit, and engaging with the locking slit. The lighting fixture according to claim 2.

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