JP2006032221A - Lighting fixture for rail vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting fixture for a rail vehicle in which the degree of freedom of a design is high compared with a conventional lighting fixture for the rail vehicle, and furthermore in which output light from a fluorescent lamp can be led into a compartment efficiently. <P>SOLUTION: In the lighting fixture main body 1 on which two lamp sockets 2 to support both ends of the fluorescent lamp 3 are attached, by forming structure which protrudes to both sides of the direction intersecting at the right angles to its longitudinal direction and which integrally forms a reflecting plate 12 to reflect light from the fluorescent lamp 3 with aluminum extrusion molding materials, and the lighting fixture is more superior in design characteristics compared with the conventional lighting fixture composed of a press molding product of a rolled steel, and furthermore the lighting fixture for rail vehicle of high illumination efficiency is obtained by integrating the reflecting plate. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a lamp for illuminating a passenger compartment of a railway vehicle.

  In general, in a passenger room of a railway vehicle, a lamp having a fluorescent lamp as a light source is attached to a ceiling portion thereof, and a straight tube is frequently used as the fluorescent lamp of the light source, and a pair of power supplies is supported by supporting both ends of the fluorescent lamp. A lamp having a lamp socket is used (see, for example, Patent Document 1).

  Conventionally, as described in Patent Document 1 described above, such a lamp mainly uses a press-formed product using a rolled steel plate such as SPCC. Examples of the configuration are shown in perspective views in FIGS. 5 and 6, respectively.

  In the example of FIG. 5, a pair of lamp sockets 52 are fixed to both ends of a lamp body 51 made of a press-formed product of a rolled steel plate, and both ends of the fluorescent lamp 53 are supported by the lamp sockets 52. Each of the lamp sockets 52 is covered with a part of both ends of the fluorescent lamp 53 and a socket cover 54 provided below the both ends. By this socket cover 54, the fluorescent lamp 53 should be removed from the lamp socket 52 by any chance. Also, the fluorescent lamp 53 is configured to be prevented from falling. The socket cover 54 is conventionally made of resin, and the fluorescent lamp 53 can be replaced by rotating around a horizontal axis attached to the lamp body 51 together with the lamp socket 52 to open and close.

In the example of FIG. 6, end units 62 including lamp sockets (not shown) are fixed to both ends of a lamp body 61 that is also a press-formed product of a rolled steel plate, and each lamp socket of the end unit 62 is fixed. The end unit 62 is provided with a guide groove so that the socket cover 64 is slidably supported, and the socket cover 64 can be opened and closed by sliding.
JP-A-10-134628

  By the way, in the conventional railcar lamp as described above, since it is a press-formed product of a rolled steel plate, it is difficult to obtain a complicated shape in its production, and the design is limited. There is. Further, in relation to such manufacturing restrictions, there are few lamps for railcars that have a clear shape or function as a reflector, most of which are shown in FIGS. As exemplified in (1), it substantially functions only as a member for supporting the lamp socket and the socket cover and attaching them to the ceiling.

  The present invention has been made in view of such circumstances, and has a higher degree of design freedom than conventional railcar lamps, and can efficiently guide output light from a fluorescent lamp into a vehicle interior. The issue is to provide a vehicular lamp.

  In order to solve the above-described problems, a railcar lamp according to the present invention includes a lamp body on which two lamp sockets for supporting and supplying power to both ends of a fluorescent lamp are mounted, and a longitudinal direction of the lamp body. And a reflecting plate that protrudes on both sides in a direction perpendicular to the surface and reflects the light from the fluorescent lamp is integrally formed of an aluminum extrusion molding (Claim 1).

  Here, in the present invention, a groove extending along the longitudinal direction is formed at the base of the reflector on both sides of the lamp body so as to slidably support a socket cover that covers the lower part in the vicinity of each lamp socket. The structure (Claim 2) which is made can be preferably employed.

  The present invention intends to solve the above-described problems by using an aluminum extrusion molding material for a railcar lamp.

  That is, the aluminum extruded material can be manufactured with a very high degree of freedom in terms of its cross-sectional shape, except for the restriction that the cross-section along the direction orthogonal to the extrusion direction is uniform. In the present invention, the feature of the aluminum extrusion molding method is applied to a lamp for a railway vehicle, and light from a fluorescent lamp is applied to both sides in a direction perpendicular to the longitudinal direction of a lamp body to which a pair of lamp sockets are mounted. A reflecting plate for reflection is integrally formed to project. There is no particular manufacturing difficulty in making the cross-sectional shape integrally provided with reflectors on both sides of such a lamp body by the aluminum extrusion molding method, and excellent design is provided with the reflectors integrally. A lamp is obtained.

  Further, in the aluminum extrusion molding method, since the degree of freedom of the cross-sectional shape along the direction orthogonal to the extrusion direction as described above is high, the reflectors on both sides with respect to the lamp body as described in the invention according to claim 2 It is also easy to form a groove along the longitudinal direction at the base of the base, and by using this groove as a groove for slidably supporting the socket cover, a horizontal shaft or end for opening and closing the socket cover Units can be eliminated.

  According to the present invention, the aluminum extrusion molding material is used for the lamp of the railway vehicle, and the reflectors projecting on both sides in the direction orthogonal to the longitudinal direction with respect to the lamp body supporting the lamp socket are integrally formed. In addition, the output light of the fluorescent lamp can be efficiently guided into the passenger compartment.

  Moreover, like the invention which concerns on Claim 2, as a cross-sectional shape of an aluminum extrusion molding material, the shape which formed the groove | channel along the longitudinal direction in the base part of the reflecting plate of the both sides of a lamp main body was employ | adopted, and the groove | channel is used. By adopting a structure that slidably supports the socket cover that covers the lower side of the lamp socket, there is no need for a horizontal axis and end unit for opening and closing the socket cover as in the past, and the structure is simplified and the number of parts is reduced. As well as easy assembly work.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing a side view of an embodiment of the present invention with a part omitted, FIG. 2 is an AA enlarged sectional view, and FIG. 3 is a surface perpendicular to the lamp body 1 in the longitudinal direction. It is sectional drawing cut | disconnected by.

  The lamp body 1 is made of an aluminum extrusion molding material having a uniform cross-sectional shape, and reflectors 12 projecting obliquely outward are integrally formed on both sides of the open end of the U-shaped cross-section 11. A groove 13 along the longitudinal direction is formed at the base of the U-shaped cross-section 11. The groove 13 is used as a slide guide for the socket cover 4 described later.

  In the vicinity of both ends of the lamp body 1, lamp sockets 2 are respectively fixed to the inside of the U-shaped cross section 11 and supported by inserting both ends of the fluorescent lamp 3 into each lamp socket 2. Each lamp socket 2 is connected to a ballast 5 arranged on the outer side of the U-shaped cross section 11 of the lamp body 1, so that the fluorescent lamp 3 is supplied with power from the ballast 5 via each lamp socket 2. Light. The inner opening of the U-shaped cross section 11 of the lamp body 1 is closed by a lid 6 except for the outer side in the longitudinal direction from the mounting portion of the lamp socket 2 at both ends thereof. The space surrounded by the cross section 11 is used as a wiring space.

  Each lamp socket 2 and the lower part of the end portion of the fluorescent lamp 3 supported by the lamp socket 2 are covered by a socket cover 4 slidably supported by the lamp body 1 with a slight gap. The socket cover 4 has an approximately U-shaped cross section, and is an aluminum extrusion molding material in which ears 41 protruding outward are integrally formed on both sides of the U-shaped opening end, and the ears 41 on both sides are lamps. It fits in the above-mentioned groove 13 formed in the main body 1, and is supported so as to be slidable in the longitudinal direction of the lamp body 1 using this groove 13 as a slide guide. In the figure, reference numeral 7 denotes a ball plunger for positioning the socket cover 4 in a normal position, that is, a position covering the plug socket 2 and the end of the fluorescent lamp 3 in the vicinity thereof. That is, the ball plunger 7 is screwed to the lamp body 1 so that the ball protrudes toward the inside of the groove 13, while the ear 41 of the socket cover 4 has a hole 41 a into which the ball is fitted. In the state where the hole 41a of the socket cover 4 is formed and positioned on the position where the ball plunger 7 is disposed, the ball is fitted into the hole 41a and positioned. In this positioning state, the socket cover 4 does not move by vibration or some external force, but slides by applying a force to intentionally shift the socket cover 4.

  In the embodiment of the present invention described above, as illustrated in FIG. 4, for example, a partial view of the ceiling portion of the railway vehicle viewed from below, for example, on both sides in the vehicle width direction of the ceiling portion, respectively along the longitudinal direction of the vehicle It attaches continuously so that the edge part of the lamp main body 1 may closely_contact | adhere. Accordingly, the groove 13 formed in each lamp body 1 is continuous between the lamp bodies 1 adjacent to each other. And the above-mentioned socket cover 4 is attached to the two plug sockets 2 arranged in a back-facing state across the joint surfaces of the two lamp bodies 1 attached so as to be joined in the close contact state in the longitudinal direction. On the other hand, the common thing which has the length which can cover the lower part of both of these is used. In this configuration, when replacing the fluorescent lamp 3 of one lamp body 1, the socket cover 4 may be moved to the other lamp body 1 side.

  According to the above embodiment of the present invention, the lamp body 1 is formed of an aluminum extrusion molding material, and the reflectors 12 are integrally formed on both sides in the width direction of the U-shaped cross section 11 to which the plug socket 2 is attached. -Since it has a structure, it is possible to integrally form a reflector plate that is hardly seen in conventional railcar lamps with a good design.

  Further, by utilizing the high degree of freedom of selection of the cross-sectional shape in the aluminum extrusion molding method, the socket body 4 can be opened and closed by forming the groove 13 serving as a slide guide for the socket cover 4 in the lamp body 1. This eliminates the need for the shaft and the end unit, and can also reduce costs by reducing the number of parts and the number of assembly steps.

  In addition, the cross-sectional shape of the lamp body according to the present invention is not limited to that described in the above embodiment, and reflectors are formed on both sides in the width direction of the body portion to which the lamp socket is mounted by an aluminum extrusion molding material. An arbitrary design formed integrally may be used, and an appropriate coating or surface treatment may be applied to the surface of the lamp body 1 as necessary.

It is the figure seen from the side surface of embodiment of this invention, Comprising: It is a figure which abbreviate | omits and shows. It is an AA expanded sectional view in FIG. It is sectional drawing which cut | disconnected the lamp main body 1 of embodiment of this invention by the surface orthogonal to a longitudinal direction. It is explanatory drawing of the example which attached embodiment of this invention to the ceiling part of the railway vehicle, and is the fragmentary figure which looked at the ceiling part from the bottom. It is a perspective view which shows the example of the conventional railway vehicle lamp. It is a perspective view which shows the other example of the conventional railway vehicle lamp.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lamp main body 11 U-shaped cross section 12 Reflector 13 Groove 2 Lamp socket 3 Fluorescent lamp 4 Socket cover 41 Ear part 41a Hole 5 Ballast 6 Lid 7 Ball plunger

Claims (2)

A lamp that can be attached to the ceiling of a passenger compartment of a railway vehicle,
A lamp body on which two lamp sockets for supporting and supplying power to both ends of the fluorescent lamp are mounted, and a reflection that reflects light from the fluorescent lamp by projecting to both sides of the lamp body in a direction perpendicular to the longitudinal direction. A railcar lamp, wherein the plate is integrally formed of an aluminum extrusion molding material.   Grooves extending along the longitudinal direction are formed at the bases of the reflectors on both sides of the lamp body so as to slidably support socket covers that cover the vicinity of the lamp sockets. The railcar lamp according to claim 1.

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