JP4144915B2 - Vehicle lighting - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle lighting device.
[0002]
[Prior art]
Conventionally, for example, in a vehicle lighting device that illuminates the interior of a truck, a housing that accommodates a fluorescent lamp as an illumination member is attached to the ceiling of the vehicle, and both ends of the fluorescent lamp are supported in the housing via sockets. Yes. A plurality of mounting holes are formed in the housing, and the housing is fixed to the vehicle interior ceiling by tightening a screw member inserted through each mounting hole with a tightening tool. This mounting hole is as close as possible to the glass tube of the fluorescent lamp to reduce the size of the entire vehicle lighting fixture.
[0003]
[Problems to be solved by the invention]
However, in conventional vehicle lighting equipment, if the mounting hole is brought close to the glass tube of the fluorescent lamp, the tightening tool may come into contact with the fluorescent lamp when the screw member is tightened. There was a problem that.
[0004]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to reduce the size of a vehicle lighting fixture as a whole, and to provide a function for protecting a glass tube of a fluorescent lamp in an engaging member when mounting a housing on a mounting portion. Is to prevent cracking.
[0005]
[Means for Solving the Problems]
[0006]
According to the first aspect of the present invention, the housing for housing the lighting member is provided with a mounting portion disposed close to the lighting member, and the screw member is fastened to the mounting portion with a tightening tool. In a vehicle lighting apparatus in which a housing is attached to a mounted portion, an engagement fitting that engages and supports an illumination member is provided in the housing, and the engagement fitting includes a base portion that is attached in the housing; A gripping part that grips the outer periphery of the lighting member that is curved at both ends of the base part on the inner surface, and a protruding piece that protrudes from the outer surface on at least one side in the width direction of each gripping part, The engagement fitting is configured such that when the tip of the tightening tool is inclined in the width direction of the gripping portion of the lighting member while the screw member is tightened, the tip of the tightening tool is a protruding piece of the gripping portion. Abut The gist of the configuration is as follows.
[0007]
The invention according to claim 2 is the invention according to claim 1 , wherein the protruding pieces are bent so as to extend along the longitudinal direction on both sides in the width direction of the gripping portions. The gist.
Therefore, the invention described in claims 1 to 2 has the following effects.
[0008]
In the first aspect of the present invention, since the mounting portion is disposed close to the lighting member, the housing is downsized, leading to downsizing of the entire vehicle lighting fixture. In addition, when the screw member is tightened with respect to the mounting portion using a tightening tool, the illumination member is protected because the tightening tool contacts the outer surface of the gripping portion of the engagement fitting even if the tightening tool is inclined in the radial direction. .
[0009]
Further, when the screw member is tightened with the tightening tool, even if the tightening tool is inclined in the width direction of the gripping portion, it interferes with the protruding piece of the gripping portion, so that the illumination member is protected.
In the invention according to claim 2, in addition to the effect of the invention described in claim 2, wherein the projecting pieces, the are bent so as to extend along the longitudinal direction on both sides in the width direction of the grip part Since the length of the protruding piece is increased, the tightening tool is further prevented from rattling in the longitudinal direction of the lighting member.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment in which the present invention is embodied in a vehicle lighting device that performs illumination in a truck will be described with reference to the drawings.
[0011]
As shown in FIGS. 1 to 3, the vehicle lighting device 1 is provided on an interior ceiling 2 as a mounted portion. A plurality of mounting holes 4 (four in the present embodiment) as mounting portions are provided on the upper surface of the housing 3 of the vehicle lighting device 1, and the screw members 5 inserted into the mounting holes 4 are tightened. A housing 3 is fixed to the vehicle interior ceiling 2. A chassis 6 is attached to the inner top surface of the housing 3, and a reflecting plate 7 is attached to the lower surface of the chassis 6. A pair of sockets 8 are provided on the lower surface of the chassis 6 at a predetermined interval in the longitudinal direction. The socket 8 has a fluorescent lamp 9 as an illumination member along the longitudinal direction of the reflector 7. Is detachably attached.
[0012]
A colorless and transparent lens 10 is detachably attached to the lower opening 3 a of the housing 3 with screws 11, and the entire lower side of the fluorescent lamp 9 is covered with the lens 10. When the fluorescent lamp 9 is turned on, the light that has passed through the lens 10 illuminates the interior of the vehicle.
[0013]
As shown in FIGS. 2 to 4, a hollow rivet 12 is penetrated and fixed near the center of the chassis 6, and the lower portion of the rivet 12 is engaged and supported by the glass tube 9 a of the fluorescent lamp 9. An engagement fitting 13 as a member is attached. The engagement fittings 13 are arranged so as to correspond to the attachment holes 4 (the right-hand attachment holes 4 in FIG. 1A) located on both sides of the respective attachment holes 4 with the fluorescent lamp 9 interposed therebetween. That is, the fluorescent lamp 9 is disposed at an intermediate position between the mounting holes 4 located on both sides of the fluorescent lamp 9. The engagement metal fitting 13 is composed of a base portion 14 having a rivet through hole 14a formed in the center thereof, and gripping portions 15a and 15b that are curved along the outer periphery of the glass tube 9a of the fluorescent lamp 9 on both sides of the base portion 14. Has been. Each grip part 15a, 15b grips the outer periphery of the glass tube 9a by its own elastic force. The outer surfaces of the gripping portions 15 a and 15 b correspond to the mounting holes 4 located on both sides of the fluorescent lamp 9. A bent piece 16 that is bent outward is formed at the tip of each gripping portion 15a, 15b. On both sides of the gripping portions 15a and 15b, projecting pieces 17 are bent as projecting portions extending along the longitudinal direction.
[0014]
Next, an effect | action at the time of attaching the vehicle lighting fixture 1 comprised as mentioned above to the vehicle interior ceiling 2 is demonstrated.
In a state where only the lens 10 is removed from the housing 3 and the housing 3 is aligned with the ceiling 2 in the vehicle, the tip of the screw member 5 is inserted into each mounting hole 4 and a tightening tool such as a long driver The screw member 5 is tightened at 18. In this case, when the screw member 5 is tightened in the mounting holes 4 located on both sides of the fluorescent lamp 9, if the tip of the tightening tool 18 is inclined in the radial direction of the glass tube 9a during tightening, the tip of the tightening tool 18 is The portion comes into contact with the outer side surfaces of the gripping portions 15 a and 15 b of the engagement fitting 13. That is, the tip of the tightening tool 18 does not contact the glass tube 9a of the fluorescent lamp 9. Further, when the distal end portion of the tightening tool 18 is inclined in the longitudinal direction of the glass tube 9 a, the distal end portion of the tightening tool 18 interferes with the protruding piece 17 of the engagement fitting 13. Therefore, the tip of the tightening tool 18 does not rattle greatly on the glass tube 9a of the fluorescent lamp 9. Therefore, the possibility that the tip of the tightening tool 18 contacts the glass tube 9a of the fluorescent lamp 9 is reduced.
[0015]
The effects that can be found from this embodiment are described below.
Since each mounting hole 4 is arranged close to both sides of the glass tube 9a of the fluorescent lamp 9, it is possible to reduce the size of the entire vehicle lighting fixture. At the same time, since the engagement fittings 13 are arranged so as to correspond to the respective attachment holes 4, the glass tube 9 a of the fluorescent lamp 9 can be protected by the engagement fittings 13 when the screw member 5 is tightened in each attachment hole 4. it can. Therefore, the glass tube 9a of the fluorescent lamp 9 can be prevented from breaking.
[0016]
The outer surfaces of both gripping portions 15a and 15b correspond to the mounting holes 4 located on both sides of the glass tube 9a of the fluorescent lamp 9. Therefore, when the screw member 5 is tightened in each mounting hole 4, even if the distal end portion of the tightening tool 18 is inclined in the radial direction of the glass tube 9 a, it is held in contact with the outer surfaces of the gripping portions 15 a and 15 b. Therefore, the fluorescent lamp 9 can be reliably protected.
[0017]
When the screw member 5 is tightened in each mounting hole 4, even if the tip of the tightening tool 18 is inclined in the longitudinal direction of the glass tube 9 a, the tip of the tightening tool 18 is the protruding piece 17 of the engagement fitting 13. To interfere with. Therefore, the tightening tool 18 is not greatly inclined in the longitudinal direction of the glass tube 9a. Accordingly, since the operability of the tightening tool 18 can be improved, the screw member 5 can be easily tightened with respect to the mounting hole 4.
[0018]
In addition, you may comprise the said embodiment as follows.
In the above-described embodiment, the vehicle lighting device is embodied in a truck. However, the vehicle lighting device may be embodied in a bus, a train, an airplane, a ship, or the like other than the truck. Moreover, you may attach a vehicle lighting fixture to a side wall other than the ceiling 2 in a vehicle.
[0019]
· Widthwise length of the projecting pieces 17 may be changed to any length. As the length of the protruding piece 17 is increased, the tightening tool 18 can be further prevented from rattling in the longitudinal direction of the glass tube 9a.
[0020]
In the above embodiment, the protruding pieces 17 are provided on both sides of the gripping portions 15a and 15b, respectively, but may be provided only on one side.
[0021]
【The invention's effect】
According to the first aspect of the present invention, it is possible to reduce the size of the entire vehicle lighting fixture and protect the glass tube of the fluorescent lamp to the grip portion of the engagement fitting when the housing is attached to the attachment portion. By giving the function, it is possible to prevent the fluorescent lamp from breaking.
[0022]
In addition, since the tightening tool interferes with the protruding piece of the grip portion, the illumination member can be reliably protected even if the tightening tool is slightly inclined.
[0023]
According to the invention described in claim 2 , in addition to the effect of the invention described in claim 1 , it is possible to further prevent the tightening tool from rattling in the longitudinal direction of the lighting member by increasing the length of the protruding piece. be able to.
[Brief description of the drawings]
FIG. 1A is a partially cutaway front sectional view of a vehicle lighting device showing an embodiment, and FIG. 1B is an enlarged sectional view of the vehicle lighting device in the vicinity of an engagement fitting.
FIG. 2 is a sectional view taken along line XX in FIG.
FIG. 3 is an exploded perspective view of a vehicle lighting device.
FIG. 4 is an enlarged perspective view of the engagement fitting 13;
[Explanation of symbols]
2 ... Car interior ceiling (attached part), 3 ... Housing, 4 ... Mounting part, 5 ... Screw member, 9 ... Fluorescent lamp (illuminating member), 13 ... Engagement fitting (engaging member), 15a, 15b ... Gripping part 17 ... Projection piece (projection part).

Claims (2)

The housing for housing the illumination member is provided with an attachment portion disposed close to the illumination member, and the housing is attached to the attachment portion by fastening a screw member to the attachment portion with a tightening tool. In such a vehicle lighting fixture,
  An engagement fitting for engaging and supporting the illumination member is provided in the housing,
  The engagement metal fitting includes a base portion mounted in the housing, a grip portion that grips the outer periphery of the illumination member that is curved at both ends of the base portion, and at least one side in the width direction of each grip portion. A projecting piece projecting from the outer surface, and when the distal end portion of the tightening tool is tilted in the width direction of the grip portion of the illumination member during tightening the screw member, A vehicle lighting device, wherein the tip of the tightening tool is configured to abut against a protruding piece of the gripping portion. The vehicle lighting device according to claim 1, wherein the protruding piece is bent so as to extend along the longitudinal direction on both sides in the width direction of the gripping portions.

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