JP2009040186A - Illumination instrument for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an illumination instrument for a vehicle that is prepared for a fire accident of a vehicle while improving a maintenance ability and maintaining the strength of the vehicle. <P>SOLUTION: A torque mechanism built inside a torque hinge 35 is adjustable for a rotating force acting around a hinge shaft if a heavy material such as metal or glass is used as a glove compartment 20 for the preparation of fire, so that the glove compartment 20 can be configured to open downwardly as it gradually rotates even if it is heavy. Therefore, it leads to a good maintenance ability and an improvement of durability or strength of the hinge, similar to the related arts. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a lighting fixture used for lighting inside a vehicle, and relates to a lighting fixture for a vehicle that is provided in a bus, a railway, a large automobile, and the like and illuminates a passenger or a passage with a light source such as a fluorescent lamp.

  2. Description of the Related Art Conventionally, in a vehicular lighting fixture provided in a vehicle, a cover that covers a fluorescent lamp is formed of a lightweight resin material in order to reduce costs and improve maintainability. In particular, the cover that covers the fluorescent lamp, that is, the glove, is made of lightweight resin in consideration of cleaning and replacement of the fluorescent lamp, and has a structure that can be opened and closed with respect to the main body by a hinge provided on one side of the glove. (For example, refer to Patent Document 1).

  In addition, these hinge mechanisms have been improved so that a long cover body can be opened and closed smoothly (for example, see Patent Document 3), and a mechanism comprising a spring and a shaft having both a hinge function and an engagement function, respectively, There has been proposed a lighting fixture (see, for example, Patent Document 2) that facilitates both rotation and attachment / detachment of the lamp cover with respect to the lamp body by being provided in the lamp body.

JP 2003-36721 A (paragraph 0044, paragraph 0052, FIGS. 3 to 6) Japanese Patent Laying-Open No. 2006-79918 (FIG. 4) JP 2007-26739 A (FIGS. 5 to 6)

However, in conventional vehicular lighting fixtures, the entire glove is often made of resin in order to improve maintainability and reduce costs. When a fire accident occurs in the vehicle, the resin is removed from the ceiling vehicular lighting fixture. There is a fear that the glove may be ignited at a stroke due to the fear of melting and burning of the resin such as the glove, and the glove itself may fall, and countermeasures against the fire have been desired.
And, in order to take measures against fire accidents, especially in the case of fire accidents, it has become necessary to form gloves using non-combustible materials such as metal and glass, but the differences in the weight of the gloves themselves and the materials used Because of this difference, it has been difficult to maintain improvements in strength and maintainability with the conventional case structure.

  Then, an object of this invention is to provide the vehicle lighting fixture which took the countermeasure with respect to the fire accident of a vehicle, maintaining the improvement of maintenance property and intensity | strength.

  In order to solve this problem, the present invention described in claim 1 includes a main body (30) for housing a light source for illumination (fluorescent lamp 8, lamp, LED lamp, EEFL lamp, neon lamp, etc.) and the main body (30 ) And a vehicle lighting device (10) provided near the ceiling of the passenger compartment inside the vehicle, wherein the globe (20) is at least a position facing the passenger side. A transmissive part (22) formed of a non-combustible material (preferably glass, tempered glass, refractory glass, composite resin, etc.) that transmits light from the light source, and a frame shape that houses the transmissive part (22). And a housing (21) formed of non-combustible material (preferably aluminum, iron, copper, composite resin, etc.), and the glove (20) is connected to the main body (30) on one side edge side thereof Can be opened and closed When the engagement member (35) and the globe (20) are engaged with the engagement portion (37) of the main body (30) on the other side edge side, the engagement is released at the closed position, and the engagement is released. A locking member (27) for opening and closing (20), and the connecting hinge member (35) acts against the rotation of the connecting hinge member (35) when the glove (20) is opened by its own weight. It is characterized by having a hinge mechanism having a torque for torque.

  With the above configuration, the housing of the globe facing the passenger side and the transmission part facing the passenger side are formed of a non-combustible material. Therefore, since the plastic material is not used on the side facing the passenger as in the prior art, the plastic material does not melt down. Moreover, even if a glove is used and a heavy material is used, a structure that gradually rotates and opens a glove with a load can be obtained by a torque mechanism built in the connecting hinge member. Therefore, it is possible to ensure the maintainability as in the prior art and improve the durability and strength of the hinge.

In order to solve this problem, the present invention according to claim 2 is characterized in that the transmissive portion (22) has a concave back surface of the surface with respect to the passenger side.
With the above configuration, the permeable part formed with a concave back surface on the passenger side can receive the melted plastic material even when the plastic material melts. Can be prevented from melting away.

  According to the configuration of the present invention, it is possible to take measures against a fire accident of the vehicle while maintaining the improvement of the maintainability and the strength.

The present embodiment will be described below with reference to FIGS.
FIG. 1 is a perspective view of a state in which the vehicle lighting device 10 is mounted on a vehicle as viewed from below. FIG. 2 is a perspective view of the state in which the vehicular lighting fixture 10 is removed from the vehicle as viewed from above. FIG. 3A is a front view of the vehicular lighting fixture 10. FIG. 3B is a plan view of the vehicular lighting fixture 10. FIG. 3C is a rear view of the vehicular lighting fixture 10. FIG. 3D is a bottom view of the vehicular lighting fixture 10. FIG. 3E is a right side view of the vehicular lighting fixture 10. The left side view appears symmetrically with the right side view. FIG. 4 is a perspective view of the state when the globe 20 of the vehicular lighting fixture 10 is opened and closed when the fluorescent lamp 8 is removed, as viewed from below. FIG. 5 is a side view of the state when the globe 20 of the vehicular lighting fixture 10 is opened and closed as viewed from the side. FIG. 6 is a cross-sectional view taken along line AA of the front view of the vehicle lighting device of FIG.

  FIG. 1 shows a vehicular lighting fixture 10 that is attached to the ceiling of a vehicle and illuminates the interior of the vehicle with a built-in straight tubular fluorescent lamp 8. The vehicular lighting fixture 10 includes a main body 30 for mounting the vehicular lighting fixture 10 on the ceiling of the vehicle and storing the fluorescent lamp 8, and a globe 20 that can be opened and closed downward from the main body 30. .

The main body 30 will be described with reference to FIGS.
As shown in FIG. 2, the main body 30 has a trapezoidal shape with an open section and a box-like housing as a whole. A transformer 5, a torque hinge 35, and a hook metal fitting are formed outside the main body 30. 37 and a fluorescent lamp 8 and a socket 7 are provided inside the main body 30.

  A flat mounting surface 31 for mounting on the ceiling of the vehicle is provided on the trapezoidal top of the main body 30, and a transformer for converting the input electric power and supplying it to the fluorescent lamp 8 is provided on the mounting surface 31. 5 is provided. The trapezoidal inclined surface 32 of the main body 30 is provided with an indirect illumination window 33 as a window for illuminating the light of the internal fluorescent lamp 8 to the outside along the longitudinal direction.

  A torque hinge 35 is provided on one side edge side of the trapezoidal shape of the main body 30. As shown in FIG. 2, the torque hinge 35 is fixed to the inclined surface 32 of the main body 30 and a globe 20 described later, and includes a hinge mechanism for opening the globe 20 downward from the main body 30. . Further, on the other side edge of the trapezoidal shape of the main body 30, the hook metal fitting 37 is formed in a plate shape extending in the horizontal direction (see FIG. 5), and at two places on the inclined surface 32 on the opposite side of the torque hinge 35. It is attached.

  As shown in FIGS. 4 and 6, a transparent plate 34 made of a transparent plastic material is mounted inside the main body 30 so as to face the indirect illumination window 33. The transparent plate 34 is sandwiched and fixed between the plate fixing bracket 53 and the inclined surface 32. The plate fixing metal 53 is formed by bending a flat plate made of a metal material in accordance with the fixed state of the transparent plate 34 and is fixed on the inclined surface 32 by screws, bolts, or the like.

In addition, in order to reinforce the bending of the main body 30, reinforcing members 55 having a trapezoidal cross section are provided with a space therebetween, and are fixed to the mounting surface 31 and the inclined surface 32 with screws or the like. The reinforcing member 55 extends in a flat plate shape toward the fluorescent lamp 8 so as not to reduce the amount of light emitted from the fluorescent lamp 8 through the indirect illumination window 33 to the outside.
Moreover, the wiring stopper 51 is provided along the fluorescent lamp 8, and the surface is covered with an insulating material so that it can be bent. These wiring clasps 51 are for bundling the wiring clasps 51 themselves to prevent the wiring extending from the transformer 5 at the center to the socket 7 from drooping.

Next, the globe 20 will be described with reference to FIGS. 1, 4 and 6.
As shown in FIG. 1, the globe 20 includes a transmission part 22 that transmits light from the fluorescent lamp 8, protrudes toward the passenger, and is curved in an arc shape, and a lower housing 21 that houses the transmission part 22.

  As shown in FIG. 6, the transmission part 22 is formed in a two-layer structure, and a transparent first transmission member 23 in which a lower part facing the passenger is formed of a glass material, and a transparent plastic material in which the upper part is milky white. And is held and fixed by a holding member 40 provided in the lower housing 21. The gripping member 40 is formed in a U-shaped cross section, is provided at each of three locations above and below the globe, and grips the transmission part 22 so as not to be displaced by the vibration of the vehicle.

  As shown in FIG. 6, the lower housing 21 is opened in the lower part to transmit light from the fluorescent lamp 8 through the transmission part 23, and the upper part is extended to the trapezoidal skirt of the cross section of the main body part 30. It is made of a surrounding metal material. A pressing member 41 that is fixed with a screw or the like and presses the gripping member 40 described above is provided on the upper portion of the lower housing 21. A sponge 45 is provided around the upper portion of the lower housing 21 (see FIG. 4) to prevent insects, dust, dust, and the like from entering. When the glove 20 is closed, the end of the main body 30 is The sponge 45 is disposed at a position where it touches or enters the sponge 45.

  On the upper portion of the lower housing 21, latch fittings 27 are provided at two locations on the side end of the globe 20 so as to face the torque hinge 35 described above. The latch fitting 27 is provided with a latch piece 28 protruding in a triangular shape so that the latch fitting 27 can be hooked on a hook fitting 37 in the main body 30. The latch fitting 27 has a structure in which the latch piece 28 rotates around the shaft 29 in the direction of the arrow in FIG. 6 and returns to the original position by an elastic force such as a spring or a spring incorporated therein. .

(Glove opening and closing operation)
As shown in FIGS. 4 and 5, the globe 20 is provided with a hinge mechanism so that the globe 20 can be opened and closed when the fluorescent lamp 8 is replaced or cleaned, and the engagement between the hook fitting 37 and the latch fitting 27 is performed. The stop state is released and the torque hinge 35 can be opened downward. The torque mechanism built in the torque hinge 35 acts on the hinge axis and applies a force against the rotating force. By adjusting this force according to the weight of the globe 20, Even when the globe 20 is heavy, it can be structured to rotate gradually and open downward. Therefore, even when the lower casing 21 of the globe 20 is made of metal and part of the globe 20 is made of glass and has a weight, when the operator opens the globe 20, There is no need to support it. In addition, even if the hand is released, it is opened and closed gradually, so that it is safe to work and leads to improvement in the strength and durability of the hinge.

  When the globe 20 is closed, the latching mechanism of the latch fitting 27 provided in the globe 20 holds the hook metal 37 and the globe 20 in a locked state. And it is a structure where a vibration is absorbed by the elastic force built in the latch metal fitting 27 so that it may not rattle by the vibration of a vehicle.

(Fire countermeasures)
The fire countermeasure will be described with reference to FIG. At least the lower casing 21 of the globe 20 facing the passenger side is preferably a non-combustible material (a metal such as iron, copper, aluminum, or a composite resin) that is recognized as non-combustible in a flammability determination test for railway vehicle materials determined by the Ministry of Land, Infrastructure, Transport and Tourism. ), It will not melt like plastic even if there is a fire. In addition, among the transmissive portions 22 that transmit the light of the fluorescent lamp 8, the transmissive portions 22 facing the passenger side are recognized as non-combustible materials (glass, By providing the first transmission member 23 formed of fireproof glass, tempered glass, composite resin, etc., it does not melt like plastic.

Moreover, even if the 2nd permeation | transmission member 25 formed with the plastic material is used, the 1st permeation | transmission member 23 which formed the back surface of the surface with respect to a passenger side in concave shape receives or stores the melt | dissolved 2nd permeation | transmission member 25. Therefore, the melted second transmitting member 25 does not melt down to the passenger side. In particular, it is possible to store a resin (second transmissive member 25) melted at a bottom portion (near the point P) which is a bottom provided in an arc shape of the first transmissive member 23.
Furthermore, the melted resin can be stored in the main body 30 even if the resin is heavily used by the space formed by the first transmitting member 23 having the concave back surface on the passenger side and the metal lower housing 21. Because it can, it will not melt into the passenger side.

(Effect of this embodiment)
(1) With the configuration of the present embodiment, the lower casing 21 of the globe 20 facing the passenger side is a metal material that does not require such permeability as aluminum, iron, copper, composite resin, etc. as a non-combustible material (first The transmission part 22 facing the passenger side is formed of a glass material (second material) that requires such permeability as glass, fireproof glass, tempered glass, composite resin, etc. as a non-combustible material. The first transmission member 23 is provided. Therefore, since the plastic material is not used on the side facing the passenger as in the prior art, the plastic material does not melt. Even if a fire breaks out, it does not burn at once. Furthermore, even if a plastic material is used in the main body 30, it can be received by the lower housing 21 and the transmission part 22, and there is no possibility that the melted plastic material leaks to the passenger side.

(2) With the configuration of the present embodiment, even if a heavy material such as a metal material or a glass material is used for the globe 20 as a fire countermeasure, the torque mechanism built in the torque hinge 35 is Since the rotating force can be adjusted by acting on the rotating force, the globe 20 can be gradually rotated to open downward. Therefore, it is possible to ensure the maintainability as in the prior art and improve the durability and strength of the hinge. In addition, the use of a torque mechanism reduces the influence of vibration caused by the train. Furthermore, the advantage is that no space is required.

(3) With the configuration of the present embodiment, the transparent milky white second transmitting member 25 is provided on the upper portion of the first transmitting member 23, so that the internal structure (for example, the wiring and the fluorescent lamp 8 itself) is invisible. The effect as illumination can be demonstrated well.

(4) With the configuration of the present embodiment, even when the milky white second transmission member 25 formed of a plastic material is used for the transmission part 22, the first transmission member 23 in which the back surface of the surface with respect to the passenger side is formed in a concave shape. Since the melt | dissolved 2nd permeation | transmission member 25 can be received or stored, the melt | dissolved 2nd permeation | transmission member 25 does not melt down to the passenger side. In addition, the first transmission member 23 can be manufactured at a lower cost than using polished glass or the like.

(5) With the configuration of the present embodiment, the space formed by the first transmission member 23 having the concave back surface of the surface facing the passenger side and the metal lower housing 21 uses a lot of resin in the main body 30. Even so, the melted resin can be stored, so it does not melt down to the passenger side.

(6) Due to the configuration of the present embodiment, the torque hinge 35 and the latch fitting 27 are used, and the elastic force built in the latch fitting 27 and the torque hinge 35 are obtained when the globe 20 and the main body 30 are locked. The vibration of the vehicle can be absorbed by the hinge mechanism.

(7) According to the configuration of the present embodiment, the indirect illumination window 33 provided along the longitudinal direction on the inclined surface 32 of the main body 30 is provided so that light is emitted toward the ceiling. Can appreciate light as indirect lighting.
Moreover, since the state inside the main body 30 can be monitored from the indirect lighting window 33 without opening and closing the latch fitting 27, it leads to improvement in maintainability.
Furthermore, since the transparent plate 34 made of a transparent plastic material faces the indirect illumination window 33, there is no fear that insects, dust, etc. enter the inside of the main body 30.

(Examples of changes to other embodiments)
The example which changed embodiment described above into other embodiment is shown below.

In the above embodiment, the fluorescent lamp 8 has been described. However, the present invention can be applied to a lighting fixture such as an EEEFL lamp or a neon lamp using a bulb lamp, an LED lamp, or a cold cathode tube.

In the above embodiment, the second transmissive member 25 is made of a resin. However, a fire-resistant resin or a permeable colored glass (white, etc.) may be used, and there is a concern that it will melt like a resin. There is no risk of toxic gas lamps being generated and it is effective for fire fighting.

-Although the example which provided the lighting device 10 for vehicles in the ceiling part was shown in the above embodiment, it is not specifically limited, A passenger | casing rack part may be sufficient.

In the above-described embodiment, the gripping member 40 has a structure in which the second transmission member 25 and the first transmission member 23 are directly sandwiched. However, as shown in FIG. It may be a structure. By doing so, it is possible to prevent particularly the glass surface from being scratched and to prevent rattling due to train vibration.

In the above embodiment, the method of fixing with the U-shaped gripping member 40 has been shown. However, as shown in FIG. 8, the metal pressing piece 43 provided in the lower housing 21 is replaced with the second transmission member. A method of opening and fixing to the position of the tape-like cushioning material 42 attached to the end of 25 may be used. With the above configuration, when the first transmission member 23 and the second transmission member 25 are attached and detached, the first transmission member 23 and the second transmission member 25 can be simply bent and retracted to the position of the lower housing 21. Can be exchanged easily.

・ There are hinge mechanisms that act against the rotation of the hinge, such as those that act on the pressure of members found in torque hinges, and those that act on oil pressure, air, and springs. Spring hinges, damper hinges, rotary dampers There are hinges.

-Although the side which faced the 1st permeation | transmission member 23 curved in the arc shape was demonstrated, it is not limited to an arc shape in particular, Flat may be sufficient, and conversely may be concave. .
That is, the back surface of the surface of the first transmission member 23 with respect to the passenger side may be a groove shape or a triangular or quadrangular concave shape so that the melted resin can be received. In particular, even if it is not concave over the entire longitudinal direction, it is sufficient if it is provided with a concave in part and formed so as to receive melted resin.

  As another technical idea conceivable from this embodiment, the back surface of the surface with respect to the passenger side is provided with a space formed by a concave transmissive portion and a housing, and resin does not flow down between the transmissive portion and the housing. The vehicle lighting apparatus according to claim 1, wherein the space is configured to store the melted resin even if a large amount of resin is used inside the main body. As a result, there is an effect that it does not melt into the passenger side.

  It can be used not only for railway vehicles but also for places where fire countermeasures are required, such as buses, trucks and ships.

It is the perspective view which looked at the state with which the lighting fixture for vehicles in this embodiment was mounted | worn with the vehicle from the downward direction. It is the perspective view which looked at the state where the lighting fixture for vehicles in this embodiment was removed from vehicles from the upper part. (A) It is a front view of the lighting fixture for vehicles in this embodiment. (B) It is a top view of the lighting fixture for vehicles in this embodiment. (C) It is a rear view of the lighting fixture for vehicles in this embodiment. (D) It is a bottom view of the lighting fixture for vehicles in this embodiment. (E) It is a right view of the lighting fixture for vehicles in this embodiment. It is the perspective view which looked at the state when the glove of the lighting fixture for vehicles in this embodiment is opened and closed from the lower part. It is the side view which looked at the state when the globe 20 of the lighting fixture 10 for vehicles at the time of removing the fluorescent lamp 8 in this embodiment was opened and closed from the side. It is sectional drawing cut | disconnected by the AA line in the front view of the lighting fixture for vehicles of Fig.3 (a) in this embodiment. The expanded sectional view which looked at the pressing member of the state holding the 1st penetration member in other embodiments from the side. The top view which looked at the 2nd penetration member in the state where the 1st penetration member in other embodiments was grasped from the upper part.

Explanation of symbols

5 ... Transformer, 7 ... Socket, 8 ... Fluorescent lamp,
10 ... Vehicle lighting fixtures,
20 ... Globe, 21 ... Lower housing, 22 ... Transmission part,
23 ... 1st transmission member, 25 ... 2nd transmission member,
27 ... Latch fitting as a locking member, 28 ... Latch piece, 29 ... shaft,
30 ... Main body, 31 ... Mounting surface, 32 ... Inclined surface, 33 ... Indirect lighting window,
34 ... Transparent plate, 35 ... Torque hinge as connecting hinge member,
37 ... Hook as a locking part,
40 ... gripping member, 41 ... pressing member, 42 ... spacer,
45 ... Sponge, 43 ... Holding piece, 51 ... Wiring clamp,
53: Plate fixing bracket, 55: Reinforcing member.

Claims (2)

A vehicular lighting fixture comprising a main body for storing a light source for illumination and a glove formed so as to cover the main body and provided near the ceiling of a passenger cabin inside the vehicle,
The globe is at least a position facing the passenger side and is formed of a non-combustible material that transmits light from the light source, and a housing that houses the transmission part and is formed of a non-combustible material in a frame shape. Consists of
A connecting hinge member capable of connecting and closing the glove with the main body on one side edge side thereof, and engaging the glove with a locking portion of the main body on the other side edge side to lock the glove in a closed position. A locking member that opens and closes the globe when the locking is released,
The linking hinge member includes a hinge mechanism having a torque that acts against the rotation of the linking hinge member when the globe is opened by its own weight. The vehicle illuminator according to claim 1, wherein the transmissive portion is formed such that a back surface of a surface with respect to a passenger side is formed in a concave shape.

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