JP2008027751A - Lighting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting apparatus 11 using an incombustible globe 13. <P>SOLUTION: A globe 13 is formed by an incombustible material having translucency using a base material of high melting-point glass fiber. Since the globe 13 is formed by pasting up by an adhesive an end plate 21 of the base material similarly of glass fiber at both ends of the globe main body 20 of glass fiber base material with its cross-section of curved shape in longitudinal direction, design of the whole glove 13 is not deteriorated. Since the both ends of the globe main body 20 can secure the cross-section in line with the shape of the end plate, the curvature shape of the globe main body 20 can be secured easily. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a lighting apparatus including a globe.

  2. Description of the Related Art Conventionally, for example, a lighting fixture used for a train interior light has a fixture main body installed on the ceiling side of a vehicle, and a straight tube fluorescent lamp or the like is arranged on the lower surface side of the fixture main body. A globe that covers the straight tube fluorescent lamp etc. on the lower surface side of the lamp is attached so as to be openable and closable.

The globe is integrally formed of a light-transmitting synthetic resin material (see, for example, Patent Document 1). In general, acrylic materials and polycarbonate resins that are translucent and have good moldability are used as the material for the globe.
JP 2002-109944 A (5th page, FIG. 1-2)

  However, acrylic resin and polycarbonate resin, which have been widely used as materials for gloves in the past, are not incombustible materials, although they have a high flame retardant level against external combustion in the event of a fire. In rare cases, there is a risk of burning.

  This invention is made | formed in view of such a point, and it aims at providing the lighting fixture using a nonflammable glove.

  The lighting fixture according to claim 1 is based on a fixture body, a globe body, and a glass fiber having a longitudinal cross-sectional shape formed of a glass-based base sheet and having a light-transmitting long sheet. A glove having a translucent sheet as a material, formed in a shape along the cross-sectional shape of the glove body, and provided with an end plate bonded to both ends of the glove body with an adhesive; It is.

  For example, when a lighting fixture is used for an interior lamp of a train, the fixture main body is long and is arranged along the longitudinal direction of the vehicle on the ceiling side of the vehicle, so that it can be replaced with a socket or this socket on the lower surface side of the fixture main body. A straight tube fluorescent lamp to be mounted is disposed, and a lighting device for lighting the straight tube fluorescent lamp is disposed on the upper surface of the instrument body. Furthermore, the glove is provided with a latch mechanism that is pivotally attached to one side intersecting with the longitudinal direction of the instrument body by a hinge and is locked to the instrument body in a closed state on the other side. It may be possible to open and close. And a glove is nonflammable by using glass fiber with a high melting point as a base material.

  According to the luminaire of claim 1, the non-combustible globe is replaced with a conventional acrylic resin or polycarbonate resin by forming the globe with a translucent material based on a glass fiber having a high melting point. The lighting fixture using can be provided. Furthermore, the design properties of the entire globe can be improved by bonding an end plate made of glass fiber as a base material to both ends of a globe body having a curved cross-sectional shape in the vertical direction. While not decreasing, both end portions of the globe body can secure a cross-sectional shape along the shape of the end plate, and the curved surface shape of the entire globe body can be easily secured.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of a lighting fixture, and FIG. 2 is a perspective view of a glove of the lighting fixture as seen from the inner surface direction.

  As shown in FIG. 1, the luminaire 11 is used, for example, as an interior lamp of a train, is formed in a long shape, and is disposed on the ceiling side of the vehicle along the longitudinal direction of the vehicle.

  The lighting fixture 11 includes a fixture main body 12, a glove 13 that can be opened and closed on the lower surface side of the fixture main body 12, and a frame 14 that attaches the glove 13 to the fixture main body 12 so as to be openable and closable.

  The instrument main body 12 has a main body part 16 attached to the ceiling side of the vehicle, and an end plate part 17 that closes both ends of the main body part 16 in the longitudinal direction. The main body portion 16 and the end plate portion 17 are formed of, for example, a color steel plate, and the lower surface in the instrument main body 12 is formed as a reflection surface. Sockets (not shown) are arranged opposite to both ends of the lower surface of the instrument body 12, and a straight tube fluorescent lamp (not shown) is connected between the sockets. A lighting device 18 for lighting a straight tube fluorescent lamp is disposed on the upper surface of the instrument body 12.

  The globe 13 includes a globe body 20 and an end plate 21 that closes both ends of the globe body 20 in the longitudinal direction.

  The globe body 20 is a long sheet having translucency using a glass fiber having a high melting point as a base material, and the cross-sectional shape in the longitudinal direction is formed into a curved surface. Edges 22 are bent at both side edges intersecting with the longitudinal direction of the globe body 20 so as to protrude outward, and attached to the frame body 14 using the edge parts 22 on both sides.

  The end plate 21 is made of the same material as the globe body 20, and is a translucent sheet made of glass fiber having a high melting point as a base material. It is formed in a shape.

  The globe body 20 and the end plate 21 are bonded together with an adhesive via an auxiliary member 23. The auxiliary member 23 is formed in a bar shape that is curved corresponding to the desired cross-sectional shape of the globe body 20. The outer peripheral surface of the auxiliary member 23 is bonded to the inner surface of the end of the globe body 20 with an adhesive, and the outer end surface of the auxiliary member 23 is bonded to the inner surface of the peripheral edge of the end plate 21 with an adhesive. The glove body 20 and the end plate 21 are bonded to each other through a member to hold the shape.

  Further, the frame body 14 is formed in a frame shape, and holds the globe 13 via the edge portion 22 of the globe body 20. One side crossing the longitudinal direction of the frame body 14 is rotatably attached to the instrument body 12 by a plurality of hinges (not shown). On the other side that intersects the longitudinal direction of the frame body 14, a latch mechanism (not shown) that detachably locks the instrument body 12 when the frame body 14 is closed to the instrument body 12 is disposed. The glove 13 can be released from the instrument main body 12 by releasing the latch mechanism.

  Then, by forming the globe 13 with a non-flammable material having translucency based on a glass fiber having a high melting point, the lighting fixture using the non-flammable globe 13 is replaced with a conventional acrylic resin or polycarbonate resin. 11 can be provided.

  Furthermore, the glove 13 does not deteriorate the design of the glove 13 as a whole by bonding the end plate 21 having the glass fiber base material to both ends of the glove body 20 having the glass fiber base material with an adhesive. At the same time, both end portions of the globe body 20 can secure a cross-sectional shape along the shape of the end plate 21, and the curved surface shape of the entire globe body 20 can be easily secured.

It is a perspective view of the lighting fixture which shows one embodiment of this invention. It is the perspective view which looked at the glove of the lighting fixture same as the above from the inner surface direction.

Explanation of symbols

11 Lighting equipment
12 Instrument body
13 Globe
20 Globe body
21 End plate

Claims (1)

An instrument body;
A glove body with a translucent long sheet made of glass fiber as a base material and a longitudinal cross-sectional shape formed into a curved surface, a translucent sheet made of glass fiber as a base material, A glove having an end plate formed in a shape along a cross-sectional shape and bonded to both ends of the glove body with an adhesive;
The lighting fixture characterized by comprising.

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