JP2014234051A - Fitting structure of cover case for lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fitting structure of cover case for lighting device capable of suppressing a bad condition that light of a light source for lighting device leaks to inside of the vehicle unreasonably, and capable of facilitating fitting work of the cover case.SOLUTION: A salient-state rib 4 is formed on a position corresponding to an opening peripheral wall part 21 of a cover case 2 on a vehicle body wall face part 3A positioned in the vehicle, and a tip end of the opening peripheral wall part 21 of the cover case 2 contacts with or comes close to the salient-state rib 4 while overlapping in a progress direction of the light from a light source 1. Leakage of the light to outside of the cover case 2 from a gap between the opening peripheral wall part 21 of the cover case 2 and the vehicle body wall face part 3A can be suppressed.

Description

  The present invention relates to a mounting structure for a lighting cover case in which a vehicle casing side periphery of a light source such as a high-mount stop lamp of an automobile is covered with a cover case.

The present applicant has previously proposed what is described in Patent Document 1 as an example of the mounting structure of the illumination cover case, and this is shown in FIG. The arrow Fr shown in the drawing indicates the front of the vehicle, the arrow Up indicates the upper side in the vehicle height direction, and the arrow W indicates the vehicle width direction.
In the structure shown in FIG. 5, a high-mount stop lamp 1e supported by a holder 51e is provided at a position facing the window glass 50 of the back door 3e. The vehicle mount side periphery of the high mount stop lamp 1e is covered with a cover case 9, so that the high mount stop lamp 1e and its associated devices (wiring, etc.) cannot be seen from the vehicle interior side. Hidden. Further, it is possible to prevent the light emitted from the high mount stop lamp 1e from shining brightly in the vehicle interior.

  However, the prior art still has room for improvement as described below.

  That is, the cover case 9 has an internal cavity shape with one surface (left side surface in the drawing) opened, and an upper end portion of the opening peripheral wall portion 91 that defines the opening has an end portion on the inner panel 3A of the back door 3. It is set to approach each other. In such an attachment structure, a gap 8 is generated between the tip of the opening peripheral wall 91 of the cover case 9 and the inner panel 3A. On the other hand, the light emitted from the high mount stop lamp 1 e repeats irregular reflection and the like inside the cover case 9, and a part of the light reaches the gap 8. Therefore, this light may leak into the vehicle compartment from the gap 8. In the drawing, a state in which a gap 8 is formed above the upper end of the cover case 9 is shown. However, the gap similar to the gap 8 is the other part of the opening peripheral wall portion 91 of the cover case 9 (cover It is also formed on the left and right sides of the case 9 in the vehicle width direction, and light also leaks from this portion. If such light leakage occurs, the inner panel 3A of the back door, the trim, and the like are illuminated, and there is a concern that it is difficult to visually recognize the rear of the vehicle when it is lit at night (during braking). In addition, the light leakage described above is not so good in appearance, and is a factor that impairs the quality of the passenger compartment.

  The above-described problems can theoretically be solved by increasing the assembly accuracy of the cover case 9 so that the gap 8 does not occur. However, in practice, there are various dimensional errors in the back door and other parts, so it is difficult to completely eliminate the gap 8. It is conceivable to use a sponge or the like to close the gap 8. However, if such a means is used, there are problems such as an increase in cost and poor sponge adhesion.

  In addition, conventionally, when the cover case 9 is assembled at a predetermined location, the assembly location of the cover case 9 is hidden behind the cover case 9 from the viewpoint of the operator. For this reason, there was a problem that it was difficult to assemble the cover case 9.

Japanese Patent No. 4177644

  The present invention has been conceived under the circumstances as described above, and it is appropriate that the light emitted from the light source for illumination leaks unjustly into the vehicle compartment from the gap between the cover case and the vehicle body member. It is an object of the present invention to provide a lighting cover case mounting structure that can be easily suppressed and can facilitate the cover case mounting operation.

  In order to solve the above problems, the present invention takes the following technical means.

  The attachment structure of the illumination cover case provided by the present invention includes an illumination cover case for covering the vehicle interior side peripheral portion of the illumination light source attached to the vehicle body. An illumination cover having an opening and attached to the vehicle interior such that a front end portion of an opening peripheral wall defining the opening is opposed to or close to a vehicle body wall surface positioned in the vehicle interior A mounting structure of the case, wherein a convex rib or a groove is formed at a position corresponding to the opening peripheral wall portion of the cover case in the vehicle body wall surface portion, and a tip of the opening peripheral wall portion of the cover case The portion contacts or approaches the convex rib in a state of overlapping in the traveling direction of light from the light source, or is fitted into the concave groove portion, and the opening peripheral wall portion of the cover case and the Light leakage from the gaps between the mutual and the body wall portion to the outside of the cover case is characterized in that it is possible to suppress.

According to such a configuration, the following effects can be obtained.
That is, the convex rib or concave groove provided on the wall surface of the vehicle body and the tip of the opening peripheral wall of the cover case have a labyrinth structure or a structure close to this, and this part advances from the light source. Block the light. Therefore, it is possible to appropriately prevent or suppress light from the light source from leaking into the vehicle interior through the gap between the vehicle body wall surface portion and the tip end portion of the opening peripheral wall portion of the cover case.
When the cover case is assembled to the wall surface of the vehicle body, the convex ribs or concave grooves can be used as positioning marks and guides during the assembling operation. Accordingly, the cover case can be easily assembled.
As a means for preventing light leakage, it is not necessary that the tip of the opening peripheral wall portion of the cover case is in close contact with the vehicle body wall surface portion, and a gap may be formed between them. Therefore, the assembling work of the cover case is further facilitated.

  In the present invention, preferably, the light source is a high-mount stop lamp provided to face a window glass of a back door, the vehicle body wall surface portion is an inner panel of the back door, and the convex rib or the The concave groove portion is provided in an upper region of the window opening portion of the inner panel and extends in the vehicle width direction at a position spaced upward from the window opening portion, and the first portion. A pair of left and right second portions extending downward from the left and right ends of the portion to the upper edge of the window opening or the vicinity thereof, and the cover case is an upper portion of the opening peripheral wall portion Is arranged corresponding to the first portion, and upper portions of the left and right side portions of the peripheral wall portion of the opening are arranged corresponding to the pair of second portions.

According to such a configuration, a configuration is realized in which the passenger compartment side peripheral portion of the high-mount stop lamp attached to the back door is covered with the cover case, but from the gap between the cover case and the inner panel of the back door. The light of the high-mount stop lamp is appropriately prevented from leaking into the vehicle interior. The convex rib or concave groove for preventing light leakage includes a first portion extending in the vehicle width direction, and downward from both the left and right ends of the first portion to the upper edge of the window opening or the vicinity thereof. Therefore, the light leakage prevention effect can be improved.
In addition, if the convex rib or the groove portion has the first portion and the pair of left and right second portions, the guide for positioning the cover case at the time of assembling the cover case with these portions. As a result, the cover case can be used more suitably, and the cover case can be easily attached.

  In the present invention, it is preferable that the inner panel of the back door is made of resin, and an upright wall portion and a substantially horizontal horizontal wall standing up and down in an upper region of the window opening of the inner panel. Are connected to each other, and the connecting portion between the standing wall portion and the horizontal wall portion is provided with a ridge line extending in the vehicle width direction, and the convex rib is integrally formed on the inner panel. The first portion of the convex rib is provided in an arrangement overlapping the ridgeline, and the pair of second portions are provided connected to both the standing wall portion and the horizontal wall portion. ing.

  According to such a structure, since the convex rib is integrally formed with the resin inner panel of the back door, the formation thereof becomes easy. In addition, since the standing wall portion and the horizontal wall portion are connected to each other on the upper side of the window opening of the inner panel and a ridge line extending in the vehicle width direction is formed, the strength of this portion is provided. Can be increased. In addition, the first portion of the convex rib is provided so as to overlap such a ridgeline, and the pair of second portions are connected to both the standing wall portion and the horizontal wall portion, The above-described portion is further reinforced, which is preferable in securing the strength of the back door.

  Other features and advantages of the present invention will become more apparent from the following description of embodiments of the present invention with reference to the accompanying drawings.

(A) is sectional drawing which shows an example of the attachment structure of the cover case for illumination concerning this invention, (b) is Ib-Ib principal part sectional drawing of (a). FIG. 2 is an exploded cross-sectional view of the structure shown in FIG. It is a disassembled perspective view of the structure shown to Fig.1 (a). It is principal part sectional drawing which shows the other example of this invention. It is principal part sectional drawing which shows an example of a prior art.

  Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

  The illumination cover case mounting structure C shown in FIG. 1 to FIG. 3 is a structure in which the vehicle case side peripheral portion of the high-mount stop lamp 1 provided at the rear of the vehicle is covered with the cover case 2. The structure C of the present embodiment is characterized in that a convex rib 4 described later is provided on the inner panel 3A of the back door 3.

  The high-mount stop lamp 1 corresponds to an example of the light source in the present invention, and for example, an LED light source is used. However, other types of lamps (bulbs) can be used instead of the LED light sources. The high-mount stop lamp 1 is held by a holder 51 joined to a window glass 50 of a back door 3 of an automobile, and is provided so as to face the window glass 50 through a lens unit 10.

The cover case 2 is made of an opaque resin such as black, for example, and has an inner hollow shape whose one surface is formed as the opening portion 20. For example, the back plate portion 22 having a substantially square cross section and the back plate portion 22. It has a pair of left and right side plate portions 23 connected to both sides in the vehicle width direction. The side plate portion 23 is provided with a notch 24 corresponding to a step of the back door 3 described later. The opening 20 of the cover case 2 has a substantially rectangular shape in the vehicle rear view (left side view in FIG. 2) indicated by an arrow N1 in FIG.

  The back door 3 is made of, for example, resin, and is configured by combining the inner panel 3A and the outer panel 3B when both are resin-molded. The back door 3 has, for example, a rotation fulcrum (not shown) on the upper side thereof, and can open and close the back door opening at the rear of the vehicle by being rotated. When the back door 3 is closed, the inner panel 3 </ b> A and the roof material 60 are configured to be sealed with a sealing material 61.

  In the inner panel 3 </ b> A of the back door 3, a cross-section changing region 31 is provided in the upper region of the window opening 30. The cross-section changing region 31 is a region in which a plurality of standing wall portions 31a erected in the vertical height direction and a substantially horizontal horizontal wall portion 31b are alternately connected in the vertical direction, and the plurality of standing wall portions 31a and As shown in FIG. 3, the connecting portion with the horizontal wall 31b is a plurality of ridge lines 31c extending in the vehicle width direction. Such a cross-sectional change region 31 is effective in increasing the strength of the vicinity of the window opening 30 of the inner panel 3A.

  The convex rib 4 is for preventing light leakage, which will be described later, and is formed integrally with the inner panel 3A of the back door 3 and protrudes toward the vehicle interior side. The convex rib 4 has a first portion 41 and a pair of left and right second portions 42. The first portion 41 is provided to overlap the ridgeline 31c of the inner panel 3A at a position spaced upward from the window opening 30 and extends in the vehicle width direction. The pair of second portions 42 extends downward from the left and right end portions of the first portion 41 to the upper edge portion of the window opening 30 or the vicinity thereof, and a plurality of standing wall portions 31 a of the cross-section changing region 31. And connected to the horizontal wall 31b.

  The cover case 2 is attached so as to cover the periphery of the high mount stop lamp 1 on the passenger compartment side. As the attachment means, for example, an engagement protrusion (not shown) provided on the inner side of the cover case 2 is used. Means for engaging with an engaging portion (for example, the engaging portion 52 shown in FIG. 3) provided in the peripheral portion of the mounting location of the mount stop lamp 1 is employed. In the state where the cover case 2 is attached, the first portion 41 of the convex rib 4 and the distal end portion of the opening peripheral wall portion 21 of the cover case 2 are as shown in FIG. In the traveling direction of light from 1, they overlap each other by an appropriate dimension La and come into contact with or approach each other. As shown in FIG. 1B, the relationship between the second portion 42 of the convex rib 4 and the tip of the opening peripheral wall portion 21 is the same as described above, and these are appropriate dimensions in the light traveling direction. They overlap by Lb and touch or approach each other.

  Next, the operation of the illumination cover case mounting structure C will be described.

  First, as described with reference to FIG. 1, the convex rib 4 and the tip end portion of the opening peripheral wall portion 21 of the cover case 2 overlap each other and have a structure close to a labyrinth structure. For this reason, the light traveling from the high-mount stop lamp 1 is blocked at the structure portion and appropriately prevented from leaking outside the cover case 2.

The second portion 42 of the convex rib 4 has a relatively large projecting dimension toward the vehicle interior side. For this reason, leakage of light to the left and right sides of the cover case 2 is prevented with certainty. On the other hand, in this embodiment, although the protrusion dimension of the 1st part 41 of the convex rib 4 is made small a little, the light leakage prevention effect is acquired too. Even if light passes through the gap between the first portion 41 and the opening peripheral wall portion 21 of the cover case 2 and light leakage occurs on the upper side of the cover case 2, the roof material 60 is located at the vehicle front position. Therefore, the light leakage can be made inconspicuous for automobile occupants. For this reason, in the present embodiment, the protruding dimension of the first portion 41 is slightly reduced. However, it goes without saying that the protruding dimension of the first portion 41 may be increased in order to thoroughly prevent light leakage.

  If the light leakage prevention as described above is achieved, there is no possibility that it becomes difficult to visually recognize the rear of the vehicle due to the presence of the light leaked into the vehicle interior at the time of lighting at night (during braking). Moreover, the problem that the quality of the passenger compartment is deteriorated due to light leakage can be solved.

  On the other hand, as shown in FIG. 3, when the cover case 2 is assembled to the inner panel 3 </ b> A, the convex rib 4 can be used as a positioning mark and a guide for the cover case 2. If the upper part of the opening peripheral wall part 21 and the left and right side parts of the cover case 2 are aligned so as to be fitted to the first part 41 and the second part 42 of the convex rib 4, the cover case 2 can be easily attached. Can be done. Therefore, the assembling work of the cover case 2 can be facilitated. As means for preventing leakage of light to the outside of the cover case 2, it is not necessary to bring the tip of the opening peripheral wall portion 21 of the cover case 2 into close contact with the inner panel 3A. Better.

  Since the convex rib 4 is integrally formed with the inner panel 3A, the convex rib 4 is easily formed, and the presence of the convex rib 4 increases the strength of the inner panel 3A. In particular, the first portion 41 of the convex rib 4 is provided so as to overlap with the ridge line 31c of the inner panel 3A, and the pair of second portions 42 includes the plurality of standing wall portions 31a of the inner panel 3A and the horizontal portion. By being connected to the wall 31b, an effect of further increasing the strength of the inner panel 3A can be obtained. Thus, the convex rib 4 in this embodiment is useful not only for preventing light leakage, but also for facilitating the mounting operation of the cover case 2 and improving the strength of the inner panel 3A of the back door 3.

  FIG. 4 shows another embodiment of the present invention. In the figure, the same or similar elements as those in the above embodiment are given the same reference numerals as in the above embodiment.

  In the embodiment shown in FIG. 4, the inner panel 3 </ b> A of the back door 3 is formed with a concave groove portion 4 </ b> A instead of the convex rib 4 of the above embodiment, and the opening peripheral wall portion of the cover case 2 is formed in the concave groove portion 4 </ b> A. The tip of 21 is inserted. In the figure, only the portion extending in the vehicle width direction (the portion corresponding to the first portion 41 in the above embodiment) is shown as the concave groove portion 4A, but it faces downward from the left and right ends of the concave groove portion 4A. Of course, it can be set as the form which has a ditch | groove part (part corresponding to the 2nd part 42 of the said embodiment) extended in this.

The structure in which the tip end portion of the opening peripheral wall portion 21 of the cover case 2 is fitted into the concave groove portion 4A is also a structure close to the labyrinth structure, and the light traveling from the high-mount stop lamp 1 is transmitted as in the above embodiment. The action of blocking is obtained. Therefore, it is possible to appropriately prevent light leakage from the cover case 2 into the vehicle interior. It is also possible to use the recessed groove portion 4A as a mark or guide when the cover case 2 is attached.
As can be understood from the present embodiment, in the present invention, a configuration in which a concave groove portion is provided instead of the convex rib may be employed.

  The present invention is not limited to the contents of the above-described embodiment. The specific configuration of each part of the mounting structure of the illumination cover case according to the present invention can be variously modified within the range intended by the present invention.

Even if the inner panel of the back door is not made of resin but is made of metal, it is possible to provide convex ribs or grooves, and the inner panel does not necessarily have to be made of resin. A specific method for forming the convex rib or the concave groove is not limited.
In the embodiment described above, the object to be covered by the cover case is the vehicle-side peripheral portion of the high-mount stop lamp. However, the present invention is not necessarily limited to this, and a light source other than the high-mount stop lamp (for example, the ceiling portion of the vehicle compartment) The present invention can also be applied to a case where a room lamp provided on a pillar, a door or the like is covered with a cover case.

C Illumination cover case mounting structure 1 High-mount stop lamp (light source for illumination)
2 Cover case 20 Opening (of cover case)
21 Opening wall (of cover case)
3 Back door 3A Back door inner panel (vehicle body wall)
30 Window Opening 31 Section Change Region 31a Standing Wall 31b Horizontal Wall 31c Ridge Line 4 Convex Rib 4A Concave Groove 41 First Part 42 Second Part 50 Wind Glass

Claims (3)

It includes a lighting cover case for covering the passenger compartment side periphery of the lighting light source attached to the vehicle body,
The cover case has an opening on one surface, and is attached to the vehicle interior so that the front end of the opening peripheral wall that defines the opening is in close proximity to or in contact with the vehicle body wall surface located in the vehicle interior. Mounting structure of the cover case for lighting,
Of the wall surface of the vehicle body, a convex rib or a groove is formed at a location corresponding to the opening peripheral wall of the cover case.
The front end portion of the opening peripheral wall portion of the cover case is in contact with or approaches the convex rib in a state of overlapping in the traveling direction of light from the light source, or is fitted into the concave groove portion, An illumination cover case mounting structure characterized in that leakage of light to the outside of the cover case can be suppressed from a gap between an opening peripheral wall portion and the vehicle body wall surface portion. The lighting cover case mounting structure according to claim 1,
The light source is a high-mount stop lamp provided facing the windshield of the back door,
The vehicle body wall portion is an inner panel of the back door,
The convex rib or the concave groove is provided in an upper region of the window opening in the inner panel and extends in a vehicle width direction at a position spaced upward from the window opening. And a pair of left and right second portions extending downward from the left and right end portions of the first portion to the upper edge of the window opening or the vicinity thereof,
The cover case is arranged such that the upper part of the opening peripheral wall part corresponds to the first part, and the upper part of the left and right side parts of the opening peripheral wall part corresponds to the pair of second parts. The cover cover mounting structure for lighting. The mounting structure of the illumination cover case according to claim 2,
The inner panel of the back door is made of resin, and in the upper region of the window opening of the inner panel, an upright wall portion and a substantially horizontal horizontal wall portion are connected to each other, and A place where the connecting portion of the standing wall portion and the horizontal wall portion is a ridge line extending in the vehicle width direction is provided,
The inner rib is integrally formed with the convex rib, the first portion of the convex rib is provided so as to overlap the ridgeline, and the pair of second portions are the standing walls. The lighting cover case mounting structure is provided so as to be connected to both the horizontal wall portion and the horizontal wall portion.

Images