JP2009143531A - Vehicle interior lighting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle interior lighting system capable of stopping its designed unit and functional unit from being uncoupled even when they are subjected to strong impact, thereby preventing the designed unit from falling off and scattering in a vehicle interior. <P>SOLUTION: The vehicle interior lighting system includes: the designed unit 2 disposed on a lower side of a ceiling plate 5 of a vehicle; and the functional unit 3 disposed on an upper side of the ceiling plate 5 of the vehicle and coupled to the designed unit, wherein a spacer insertion space 39 is provided on an outside of an operation plate 38 of the functional unit 3 and an insertion plate portion 41 of a spacer 4 is inserted into the spacer insertion space 39, thereby preventing disengagement between an engagement hook 26 and an engaged portion 38a due to impact. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an in-vehicle indoor lighting device provided on a ceiling portion of a vehicle.

2. Description of the Related Art Conventionally, as an in-vehicle indoor lighting device, an in-vehicle interior lighting device is known that is formed by engaging a design portion provided on the indoor side and a functional portion provided on the outdoor side with a ceiling plate inside the vehicle in between. (For example, refer to Patent Document 1). In this in-vehicle interior lighting device, when the design portion and the functional portion are combined, the locking claw that protrudes laterally provided on the side surface on the design portion side is made parallel to the ceiling plate on the functional portion side. The to-be-latched part which is constructed in the direction and has resilience is engaged. Specifically, the latched portion gets over the latching claw in a state where the latched portion is bent, and the latched portion that has climbed over the latching claw returns to bend due to repulsion, thereby engaging the both. .
JP 2005-319923 A

  However, if the locked portion on the functional part side receives a strong impact during operation of a curtain airbag, for example, the locked portion may be bent and the coupling between the design part and the functional part may be released. there were. For this reason, there is a possibility that the design part may drop and scatter in the vehicle interior.

  Accordingly, an object of the present invention is to provide an in-vehicle indoor lighting device that can prevent the design portion and the functional portion from being disconnected even when subjected to a strong impact, and the design portion can be prevented from falling and scattering into the room. .

  According to the first aspect of the present invention, the design portion is disposed on the lower side of the ceiling plate of the vehicle, and the design portion is disposed on the upper side of the ceiling plate and coupled to the design portion through an attachment hole formed in the ceiling plate. A functional part assembled with the ceiling plate sandwiched therebetween, a locking claw provided on the side plate of the design part and projecting sideways, and provided on the functional part and capable of locking to the locking claw An elastically deformable operation plate having a non-locking portion and a surface of the operation plate opposite to the surface facing the side plate are in contact with each other to prevent the locked portion from being released from the locking claw. And a spacer.

  According to a second aspect of the present invention, there is provided the in-vehicle indoor lighting device according to the first aspect, wherein the spacer is provided with a retaining engagement portion.

  A third aspect of the present invention is the in-vehicle indoor lighting device according to the first aspect, wherein the spacer is provided with a retaining engagement portion, and the retaining engagement portion is disposed on the design portion side of the spacer. It is provided in the front-end | tip which faces.

  According to a fourth aspect of the present invention, there is provided the in-vehicle indoor lighting device according to the first aspect, wherein the spacer covers a die-cutting hole for molding the locked portion.

  A fifth aspect of the present invention is the in-vehicle indoor lighting device according to the first aspect, wherein the spacer is formed of a conductive member and has a contact terminal portion that contacts the grounding bus bar of the functional portion. .

  A sixth aspect of the present invention is the in-vehicle indoor lighting device according to the first aspect, wherein the spacer is formed of a conductive member and has a contact terminal portion that contacts the grounding bus bar of the functional portion. And it is directly fixed to the vehicle body with screws.

  According to the first aspect of the present invention, it is possible to prevent the operation plate from being bent carelessly and the design portion to fall and scatter in the room.

  According to the second aspect of the invention, it is possible to prevent the spacer from coming off, and to prevent the design part and the functional part from being inadvertently released.

  According to the third aspect of the invention, since the retaining engagement portion is provided at the tip of the spacer facing the design portion side, it is easy to remove the retaining engagement portion from the design portion side, and repair, etc. There is an effect that the work is easy to perform.

  According to the fourth aspect of the present invention, since the die-cutting hole for forming the locking claw is covered with the spacer, it is possible to prevent light leakage from the functional part side. Therefore, the step of applying special processing to the functional portion can be omitted in order to close the punching hole.

  According to the invention described in claim 5, since the spacer can be used as a ground path to the vehicle body, the grounding electric wire can be eliminated.

  According to the sixth aspect of the present invention, the heat of the ground bus bar can be released to the vehicle body side. In particular, if the spacer is formed of a material having high thermal conductivity, the heat of the grounding bus bar can be effectively released to the vehicle body side. In addition, since the ceiling plate is supported by the vehicle body via the vehicle interior lighting device and the spacer, the substantial rigidity of the ceiling plate is improved.

Hereinafter, details of an in-vehicle indoor lighting device according to an embodiment of the present invention will be described with reference to the drawings. (First embodiment)
FIG. 1 is an exploded perspective view showing a state in which the vehicle interior lighting device according to the first embodiment is looked up from below the ceiling plate, and FIG. 2 shows a state in which the vehicle interior lighting device is looked down from above the ceiling plate. FIG. 3 is an exploded perspective view, FIG. 3 is a cross-sectional view showing a state in which a design part and a functional part are attached to a ceiling board, FIGS. 4 to 6 are cross-sectional views showing a step of attaching a spacer, and FIG. .

  As shown in FIGS. 1 and 2, the in-vehicle indoor lighting device 1 according to the first embodiment is roughly constituted by a design part 2, a functional part 3, and a spacer 4. The design portion 2 is arranged below the ceiling plate 5 that forms the ceiling of the vehicle. The functional unit 3 is arranged on the upper side of the ceiling board 5. When the design part 2 and the function part 3 are coupled, the ceiling plate 5 is sandwiched between the design part 2 and the function part 3. The ceiling plate 5 is formed with a substantially rectangular mounting hole 51 for coupling the design portion 2 and the functional portion 3 together.

  The design portion 2 includes a base housing 21 and a transparent or translucent lens cover 22 that can be attached to and detached from the lower surface side of the base housing 21. The base housing 21 includes a rectangular frame plate portion 23 exposed to the vehicle interior side of the vehicle, and a protrusion 24 that is formed along the periphery of the upper surface of the frame plate portion 23 and rises upward.

  Further, a switch housing portion 25 is formed in a part of the frame plate portion 23 (one end portion in the longitudinal direction in the present embodiment). The switch storage portion 25 is provided so as to be able to protrude and retract in the vertical direction with respect to the frame plate portion 23, and a switch 34 of the functional unit 3 described later is stored to enable a pressing operation of the switch 34.

  As shown in FIG. 2, the protruding portion 24 of the base housing 21 is a wall portion protruding so as to substantially surround the lens cover 22 on the upper surface side of the frame plate portion 23. Two pairs of locking claws 26 are formed on the side surfaces of the pair of projecting portions 24 facing each other (both sides in the direction orthogonal to the longitudinal direction of the frame plate portion 23 in this embodiment) toward the sides. ing. As shown in FIG. 3, the locking claw 26 has a tapered surface 26 a formed on the protruding direction side of the protruding portion 24, and a locking surface 26 b that is perpendicular to the side surface of the protruding portion 24 on the opposite side to the protruding direction. Is formed.

  As shown in FIG. 1, the functional unit 3 includes a housing 31 that is integrally molded with a synthetic resin. The housing 31 is provided with a light source arrangement space 33 in which the light source 32 is arranged on the lower surface side and a switch arrangement space 35 in which the switch 34 is arranged so as to protrude downward. When the design unit 2 and the functional unit 3 are assembled via the ceiling plate 5, the lens cover 22 faces to cover the light source arrangement space 33 and the switch 34 is stored in the switch storage unit 25. The switch 34 can be operated.

  Further, as shown in FIGS. 1 and 2, a connection part 36 is provided on the upper part of the function part 3. The wire harness 6 routed on the upper side of the ceiling board 5 is connected to the connection portion 36. In this connection part 36, the electric wire of the wire harness 6 is press-fitted and electrically connected to the contact point of a bus bar (not shown) to which the light source 32 and the switch 34 are connected.

  On both lower surfaces of both sides of the housing 31, sandwiching plate portions 37 that are in contact with both side peripheral portions of the mounting holes 51 of the ceiling plate 5 are formed. The sandwiching plate portion 37 has a length equivalent to the length in the longitudinal direction of the mounting hole 51 of the ceiling plate 5.

  In addition, two pairs of operation plates 38 are provided on both sides of the housing 31 at positions inside the sandwiching plate portion 37. The operation plate 38 includes a locked portion 38a that extends horizontally in the lower portion, and a pair of hanging portions 38b that rise from both end portions of the locked portion 38a and that have an upper end portion integrally formed with the housing 31. And a substantially U-shaped plate. Inside the operation plate 38, there is a protruding portion insertion space 38c into which the protruding portion 24 of the design portion 2 where the locking claw 26 is formed can be inserted. The locked portion 38 a of the operation plate 38 is disposed at a position corresponding to the locking claw 26 of the design portion 2.

  Further, on both sides of the light source arrangement space 33 of the housing 31, a spacer holding wall 37 a that rises from the sandwiching plate portion 37, with a spacer insertion space 39 for inserting the spacer 4 outside the operation plate 38, and spacer holding Reinforcing ribs 37b that are formed on both sides of the wall 37a in the width direction and rise from the sandwiching plate portion 37 are integrally formed. In addition, the outer side of the operation plate 38 formed near both sides of the portion where the switch 34 is provided in the housing 31 has a structure similar to the spacer holding wall 37a and the reinforcing rib 37b.

  As shown in FIG. 4, the gap dimension t1 between the operation plate 38 and the spacer holding wall 37a in the spacer insertion space 39 is slightly larger than the thickness t2 of the distal end portion of the insertion plate portion 41 of the spacer 4 described later. Is set.

  As shown in FIGS. 1, 2, and 4 to 7, the spacer 4 is a substantially U-shaped member, and a pair of parallel insertion plates that are inserted into spacer insertion spaces 39 formed on both sides of the functional unit 3. Part 41 and a connecting plate part 42 that integrally connects the upper ends of these insertion plate parts 41. At the distal ends of the pair of insertion plate portions 41, a retaining engagement portion 43 that slightly protrudes toward the inside is provided. The retaining engagement portion 43 is locked to the lower end of the locked portion 38a when the insertion plate portion 41 is inserted into the spacer insertion space 39 of the functional portion 3. The gap dimension t1 between the operation plate 38 and the spacer holding wall 37a in the function portion 3 allows the insertion plate portion 41 to be inserted into the spacer insertion space 39, and the retaining engagement portion 43 is provided on the locked portion 38a. It is set to such an extent that the locked portion 38a is bent and the locking claw 26 is not removed when locked at the lower end.

  For example, as shown in FIG. 1, the ceiling plate 5 has a shape in which the vicinity of the opening edge of the mounting hole 51 rises slightly in the circumferential direction, bends inward, and is recessed upward. For this reason, when the design part 2 is attached to the ceiling board 5, it can suppress that the design part 2 protrudes below from the ceiling board 5, and the external appearance when the design part 2 is attached comes to become favorable. Yes.

  Next, prior to the description of the mounting structure of the vehicle interior lighting device 1 according to the first embodiment, the mounting procedure will be described.

  First, as shown in FIGS. 1-3, the protrusion part 24 of the design part 2 is engage | inserted from the downward direction of the attachment hole 51 of the ceiling board 5. FIG. From above the mounting hole 51 of the ceiling plate 5, the functional part 3 is covered so as to correspond to the design part 2. As a result, the light source 32 of the functional unit 3 faces the lens cover 22 of the design unit 2, and the switch 34 of the functional unit 3 is stored in the switch storage unit 25 of the design unit 2.

  At this time, the protruding portion 24 of the design portion 2 is inserted into the protruding portion insertion space 38 c inside the operation plate 38 in the function portion 3, and the tapered surface of the locking claw 26 protruding from the outer surface of the protruding portion 24. 26a advances into the protruding portion insertion space 38c while elastically deforming the locked portion 38a of the operation plate 38 outward, and the locked portion 38a is moved in a state where the locking claw 26 passes through the locked portion 38a. Return to the original state without elastic deformation. At this time, as shown in FIG. 4, since the locking surface 26b of the locking claw 26 contacts the upper surface of the locked portion 38a, a load is applied in the direction in which the coupling between the design portion 2 and the functional portion 3 is released. However, it will not be released.

  Next, as shown in FIGS. 4 and 5, the insertion plate portion 41 of the spacer 4 is inserted into the spacer insertion space 39 of the functional portion 3. Then, the retaining engagement portion 43 protruding from the inside of the distal end portion of the spacer insertion space 39 slides inside the spacer insertion space 39 in a state where it slides on the tapered surface 26a of the locking claw 26 and is elastically deformed slightly outward. When the engaging part 43 for preventing slipping exceeds the locked part 38a, it enters under the locked part 38a, and the spacer 4 is held by the functional part 3 (see FIG. 6). In this way, the mounting of the in-vehicle indoor lighting device 1 on the ceiling plate 5 is completed.

  In addition, in order to remove the vehicle interior lighting device 1 attached in this way, as shown in FIG. 7, the lens cover 22 of the frame plate portion 23 is removed. Thereafter, the spacer 4 can be removed by operating a retaining engagement portion 43 at the lower end of the insertion plate portion 41 of the spacer 4 outward from the locked portion 38a using a jig (not shown). Next, the design portion 2 and the functional portion 3 are disconnected by releasing the engagement between the locking claw 26 and the locked portion 38a by bending the locked portion 38a outward with a jig (not shown). It becomes possible. In addition, the engagement cancellation | release with the latching claw 26 and the to-be-latched part 38a may remove | separate four places simultaneously, and may remove | separate one by one.

  In the vehicle interior lighting device 1 having such a configuration, by inserting the spacer 4 into the spacer insertion space 39 outside the operation plate 38, an inadvertent load is caused by the operation of, for example, a curtain airbag. Even when applied to the lighting device 1, the locked portion 38 a is prevented from being bent or deformed in the direction of coming off the locking claw 26. For this reason, it can prevent that the coupling | bonding of the design part 2 and the function part 3 remove | deviates, and the design part 2 falls in a vehicle interior.

  Further, since the spacer 4 is provided with a retaining engagement portion 43 that protrudes, the spacer 4 can be prevented from slipping out of the functional portion 3. For this reason, the combined state of the design part 2 and the functional part 3 can be reliably maintained.

  Further, since the retaining engagement portion 43 is provided at the tip of the spacer 4 facing the design portion 2 side, it is easy to remove the retaining engagement portion 43 from the design portion 2 side, and work such as repair is performed. There is an effect that it is easy.

  Furthermore, since the die-cutting hole for molding the locked portion 38a in the function part 3 is covered with the substantially U-shaped spacer 4, light leaks from the light source arrangement space 33 side onto the function part 3. Can be prevented. Since the die-cutting hole is closed, a step of performing special processing on the functional unit 3 can be omitted.

(Second Embodiment)
8 to 15 show a second embodiment of the present invention, FIG. 8 is a perspective view of the in-vehicle indoor lighting device viewed from the lower side of the ceiling plate, and FIG. 9 is the in-vehicle interior viewed from the upper side of the ceiling plate. FIG. 10 is an exploded perspective view showing a state in which the in-vehicle indoor lighting device is looked up from below the ceiling plate, and FIG. 11 is an exploded perspective view showing the state in which the in-vehicle indoor lighting device is looked down from below the ceiling plate. 12 is a perspective view of the spacer as viewed from the upper surface side, FIG. 13 is a perspective view of the spacer as viewed from the lower surface side, FIG. 14 is a sectional view taken along line XIV-XIV in FIG. 9, and FIG. FIG.

  As shown in FIGS. 8 to 11, the vehicle interior lighting device 1 </ b> A according to the second embodiment is compared with the vehicle interior lighting device 1 according to the first embodiment. The configuration is different, and a ground path is provided in the electric circuit of the functional unit 3. This will be described below.

As shown in detail in FIGS. 12 and 13, the spacer 4 </ b> A is formed of a conductive member. The spacer 4A is a substantially U-shaped member, and includes a pair of insertion plate portions 41A each having a retaining engagement portion 43A at the tip, a connection plate portion 42A for connecting them, and an outer side extending from the connection plate portion 42A. A pair of provided mounting plate portions 44A are provided integrally. A screw insertion hole 44a is formed in each mounting plate portion 44A. Screws 46 inserted into the pair of screw insertion holes 44a are screwed into a conductive metal roof panel 45 as a vehicle body, whereby the spacer 4A is fixed to the roof panel 45.
The connecting plate portion 42A is formed in a large size so as to cover the connecting portion 36A, as compared with that of the first embodiment. A contact terminal portion 47 protrudes from the portion covering the connecting portion 36A of the connecting plate portion 42A toward the spacer mounting direction of the spacer 4A. The contact terminal portion 47 has a bus bar press-fit groove 47a (referenced in FIGS. 14 and 15).

  On the other hand, as shown in FIGS. 14 and 15, a total of three wires 6 a for power supply and control of the wire harness 6 are electrically connected to the connection portion 36 </ b> A of the functional unit 3 by press-fitting. A grounding bus bar 48 is provided in the connecting portion 36A by insert formation. The tip of the ground bus bar 48 protrudes from the surface of the connecting portion 36A toward the spacer mounting direction. The protruding front end portion of the ground bus bar 48 is press-fitted into the bus bar press-fit groove 47a of the contact terminal portion 47 of the spacer 4A, and the ground bus bar 48 and the spacer 4A are electrically connected. That is, the ground path of the vehicle interior lighting device 1 </ b> A is formed by the ground bus bar 48, the spacer 4 </ b> A, the screw 46, and the roof panel 45.

  Since other configurations are the same as those in the first embodiment, a redundant description is avoided. 8 to 15, the same components as those in the first embodiment are denoted by the same reference numerals for clarification.

  In the in-vehicle indoor lighting device 1A according to the second embodiment, as in the first embodiment, the spacer 4A is inserted into the spacer insertion space 39 on the outer side of the operation plate 38, for example, a curtain. Even when an inadvertent load is applied to the in-vehicle indoor lighting device 1A due to the operation of the air bag or the like, the locked portion 38a is prevented from being bent or deformed in the direction of being released from the locking claw 26. For this reason, it can prevent that the coupling | bonding of the design part 2 and the function part 3 remove | deviates, and the design part 2 falls in a vehicle interior.

  Further, since the spacer 4A is provided with the retaining engagement portion 43A, it is possible to prevent the spacer 4A from slipping out of the functional portion 3. For this reason, the combined state of the design part 2 and the functional part 3 can be reliably maintained.

  Further, since the retaining portion 43A is provided at the tip of the spacer 4A facing the design portion 2, the retaining portion 43A can be easily detached from the design portion 2 side, and work such as repair is performed. There is an effect that it is easy.

  Furthermore, since the die-cutting hole for molding the locked portion 38a in the function part 3 is covered with a generally U-shaped spacer 4A, light leaks from the light source arrangement space 33 side onto the function part 3. Can be prevented. Since the die-cutting hole is closed, a step of performing special processing on the functional unit 3 can be omitted.

  In addition, in the second embodiment, the spacer 4 </ b> A is formed of a conductive member and has a contact terminal portion 47 that contacts the ground bus bar 48 of the functional portion 3. Therefore, as in the second embodiment, the spacer 4A can be used as a ground path to the vehicle body side, so that the grounding wire of the wire harness 6 can be eliminated.

  In the second embodiment, the spacer 4 </ b> A is directly fixed to the roof panel 45 with screws 46. Therefore, the heat of the grounding bus bar 48 can be released to the vehicle body side. In particular, if the spacer 4A is formed of a material having high thermal conductivity, the heat of the grounding bus bar 48 can be effectively released to the vehicle body side. Moreover, since the ceiling board 5 is supported by the roof panel 45 via the vehicle interior lighting device 1A and the spacer 4A, the substantial rigidity of the ceiling board 5 is improved.

  In the second embodiment, the contact terminal portion 47 that protrudes in the spacer mounting direction is provided on the spacer 4A, and the ground bus bar 48 that protrudes in the spacer mounting direction is provided on the connection portion 36A of the functional unit 3. Since the contact terminal portion 47 and the ground bus bar 48 are in electrical contact with each other during the mounting process of the spacer 4A, the operator does not need to perform electrical contact work separately.

  In this second embodiment, the contact terminal portion 47 is provided with a bus bar press-fit groove 47a, and the ground bus bar 48 is electrically connected to the bus bar press-fit groove 47a by press-fitting. The connection reliability between the bus bars 48 is high.

(Third embodiment)
16 to 22 show a third embodiment of the present invention, in which FIG. 16 is a perspective view of the in-vehicle indoor lighting device viewed from below the ceiling panel, and FIG. 17 is the in-vehicle interior viewed from above the ceiling panel. FIG. 18 is an exploded perspective view showing a state in which the vehicle interior lighting device is looked up from below the ceiling plate, and FIG. 19 is an exploded perspective view showing a state in which the vehicle interior lighting device is looked down from above the ceiling plate. 20 is a cross-sectional view of the in-vehicle indoor lighting device, FIG. 21A is a perspective view of the spacer, FIG. 21B is a perspective view of the spacer as viewed from the side opposite to FIG. 21A, and FIG. These are sectional drawings which show the state before inserting a spacer in the attachment process of the vehicle interior lighting device.

  As shown in FIGS. 16 to 20, the vehicle interior lighting device 1 </ b> B according to the third embodiment has a spacer 4 </ b> B compared to the vehicle interior lighting device 1 according to the first embodiment. Only the configuration is different.

  That is, in the first embodiment, the single spacer 4 is configured to prevent the pair of left and right locked portions 38a from shifting in the releasing direction. In the third embodiment, The two spacers 4B having the same configuration are configured to prevent the pair of left and right locked portions 38a from shifting in the releasing direction.

  As shown in detail in FIGS. 21A and 21B, each spacer 4B includes an insertion plate portion 60, and a stopper portion 61 projecting laterally from the rear end in the insertion direction of the insertion plate portion 60. The stopper portion 61 has a protruding wall portion 62 that protrudes along the insertion direction on the insertion plate portion 60 opposite to the protruding direction. A concave portion 63 is formed on the insertion tip side of the protruding plate portion 62 of the insertion plate portion 60.

  Since the configuration other than the spacer 4B is the same as that of the first embodiment, a redundant description is avoided. 16 to 20 and 22, the same components as those in the first embodiment are denoted by the same reference numerals for clarification.

  Next, a procedure for mounting the vehicle interior lighting device 1 according to the third embodiment will be described. The same parts as those in the first embodiment will be briefly described. As shown in FIG. 22, the design portion 2 and the functional portion 3 are assembled from the vertical direction of the ceiling board 5, and the locking claw 26 of the design portion 2 is locked to the locked portion 38 a of the functional portion 3. . From this state, the insertion plate part 60 of each spacer 4B is inserted into the left and right spacer insertion spaces 39 of the function part 3, respectively. When the insertion of the insertion plate portion 60 into the spacer insertion space 39 proceeds, the protruding wall portion 62 enters between the pair of hanging portions 38b. Then, as shown in FIG. 20, the insertion is completed when the stopper portion 61 is inserted to a position where it comes into contact with the spacer holding wall 37a. At the insertion completion position, the distal end portion of the insertion plate portion 60 abuts on the locked portion 38a, and the movement of the locked portion 38a in the releasing direction is prevented. Further, since the recessed portion 63 of the insertion plate portion 60 is disposed opposite to the locking claw 26, the locking claw 26 is not shifted in the release direction by the insertion plate portion 60.

  In the in-vehicle indoor lighting device 1B according to the third embodiment, as in the first embodiment, the spacer 4B is inserted into the spacer insertion space 39 outside the operation plate 38, for example, a curtain. Even when an inadvertent load is applied to the in-vehicle indoor lighting device 1B in accordance with the operation of the air bag or the like, the locked portion 38a is prevented from being bent or deformed in the direction of coming off the locking claw 26. For this reason, it can prevent that the coupling | bonding of the design part 2 and the function part 3 remove | deviates, and the design part 2 falls in a vehicle interior.

  In the third embodiment, since the spacer 4B is composed of two pieces having the same structure, the shape of the spacer 4B can be reduced in size and weight, and the cost can be reduced.

(Other embodiments)
It should not be understood that the descriptions and drawings which form part of the disclosure of the above-described embodiments limit the present invention. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

  For example, in each of the above-described embodiments, the locked portion 38a is constructed at the lower ends of the hanging portions 38b. Is not to be done.

  In each of the above-described embodiments, the spacers 4 and 4A have a substantially U-shaped structure or two spacers 4B. However, the structure is limited to such a structure as long as it can prevent the engagement between at least one locked portion 38a and the locking claw 26 from being disengaged. It is not something.

It is a disassembled perspective view of the state which looked at the in-vehicle interior illuminating device concerning a 1st embodiment from the lower part of a ceiling board. It is a disassembled perspective view of the state seen from the upper direction of the ceiling board of the vehicle-mounted room illuminating device which concerns on 1st Embodiment. 1 is an exploded cross-sectional view of an in-vehicle indoor lighting device according to a first embodiment. It is sectional drawing which shows the state before mounting | wearing with the spacer in the vehicle-mounted interior illuminating device which concerns on 1st Embodiment. It is sectional drawing which shows the state which mounts | wears with the spacer in the vehicle-mounted interior illuminating device which concerns on 1st Embodiment. It is sectional drawing which shows the state which mounted | wore the vehicle-mounted interior illuminating device which concerns on 1st Embodiment with the spacer. It is sectional drawing which shows the removal method of the vehicle-mounted interior illuminating device which concerns on 1st Embodiment. It is the perspective view of the state which looked at the vehicle-mounted interior illuminating device which concerns on 2nd Embodiment from the downward direction of the ceiling board. It is a perspective view of a state from the upper part of a ceiling board about the in-vehicle indoor lighting device concerning a 2nd embodiment. It is a disassembled perspective view which shows the state which looked up at the vehicle-mounted interior illuminating device which concerns on 2nd Embodiment from the downward direction of the ceiling board. It is a disassembled perspective view which shows the state which looked down at the vehicle-mounted interior illuminating device which concerns on 2nd Embodiment from the downward direction of a ceiling board. It is the perspective view which looked at the spacer of the vehicle-mounted room illuminating device which concerns on 2nd Embodiment from the upper surface side. It is the perspective view which looked at the lower surface side of the spacer of the vehicle-mounted indoor illuminating device which concerns on 2nd Embodiment. It is the XIV-XIV sectional view taken on the line of FIG. It is the XV part enlarged view of FIG. It is the perspective view which looked at the vehicle-mounted interior illuminating device which concerns on 3rd Embodiment from the downward direction of the ceiling board. It is the perspective view which looked at the vehicle-mounted interior illuminating device which concerns on 3rd Embodiment from the upper direction of the ceiling board. It is a disassembled perspective view which shows the state which looked up at the vehicle-mounted interior illuminating device which concerns on 3rd Embodiment from the downward direction of the ceiling board. It is a disassembled perspective view which shows the state which looked down at the vehicle-mounted interior illuminating device which concerns on 3rd Embodiment from the upper direction of a ceiling board. It is sectional drawing of the vehicle-mounted room illuminating device which concerns on 3rd Embodiment. (A) is a perspective view of the spacer of the vehicle-mounted interior illuminating device which concerns on 3rd Embodiment, (b) is a perspective view of the spacer which looked at the opposite side to (a). It is sectional drawing which shows the state before inserting a spacer in the attachment process of the vehicle-mounted room lighting device which concerns on 3rd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car interior lighting device 2 Design part 3 Function part 4, 4A, 4B Spacer 5 Ceiling board 22 Lens cover 26 Locking claw 32 Light source 38 Operation board 38a Locked part 39 Spacer insertion space 41, 41A Insertion plate part 43, 43A Retaining engagement part 45 Roof panel (vehicle body)
46 Screw 47 Contact terminal 48 Grounding bus bar 51 Mounting hole

Claims (6)

A design part arranged on the lower side of the ceiling plate of the vehicle;
A functional part that is arranged on the upper side of the ceiling board and is assembled in a state of sandwiching the ceiling board by coupling to the design part through an attachment hole formed in the ceiling board;
A locking claw provided on the side plate of the design portion and projecting sideways,
An elastically deformable operation plate provided on the functional part and having a locked part that can be locked to the locking claw,
A vehicle interior lighting device comprising: a spacer that contacts a surface of the operation plate opposite to the surface facing the side plate and prevents the locked portion from being released from the locking claw. . The vehicle interior lighting device according to claim 1,
An in-vehicle indoor lighting device, wherein the spacer is provided with a retaining engagement portion. The vehicle interior lighting device according to claim 1,
An in-vehicle indoor lighting device, wherein the spacer is provided with a retaining engagement portion, and the retaining engagement portion is provided at a tip of the spacer facing the design portion side. The in-vehicle indoor lighting device according to claim 1,
The on-vehicle indoor lighting device, wherein the spacer covers a die-cutting hole for molding the locked portion. The in-vehicle indoor lighting device according to claim 1,
The vehicle interior lighting device, wherein the spacer includes a contact terminal portion that is formed of a conductive member and contacts the ground bus bar of the functional portion. The in-vehicle indoor lighting device according to claim 1,
The in-vehicle indoor lighting device, wherein the spacer is formed of a conductive member, has a contact terminal portion that contacts the ground bus bar of the functional portion, and is directly fixed to the vehicle body with a screw.

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