WO2020026753A1

WO2020026753A1 - Illumination device, door trim, vehicle door, and vehicle

Info

Publication number: WO2020026753A1
Application number: PCT/JP2019/027574
Authority: WO
Inventors: 一真成田; 生佳伊藤; 嘉章伊藤
Original assignee: テイ・エステック株式会社
Priority date: 2018-08-01
Filing date: 2019-07-11
Publication date: 2020-02-06
Also published as: JP7161097B2; JP2020021645A

Abstract

[Problem] To prevent light leakage from a hinge in: an illumination device including a holder and a cover connected to each other via the hinge; a door trim provided with the illumination device; a vehicle door provided with the door trim; and a vehicle provided with the vehicle door. [Solution] The illumination device (1) comprises: a holder (10) for holding a substrate (7), on the surface of which a light-emitting element (5) is mounted; a cover (11) connected to the holder via a hinge (45) and defining a storage chamber (47) for storing the substrate together with the holder; and a light guide hole (42A) provided in the cover and serving to guide light exiting the light-emitting element. The illumination device includes a light shielding piece (70) that, in a state where the cover is closed relative to the holder, extends beyond the surfaces (72A, 82A) where the holder and the cover meet at the hinge from either the holder or the cover.

Description

Lighting device, door trim, vehicle door, and vehicle

The present invention relates to a lighting device for a vehicle, a door trim for a vehicle provided with the lighting device, a vehicle door provided with the door trim, and a vehicle provided with the vehicle door.

A vehicular lamp (illumination device) including a body having a concave portion that accommodates a light-emitting body and opens to the outside, a lens mounted on an opening edge of the concave portion, and a thin resin member that connects the body and the lens. One having a hinge portion is known (for example, Patent Document 1). The vehicular lamp is assembled by bending the hinge portion to close the opening of the body with the lens, and then hooking the lens to the body.

Japanese Utility Model Publication No. 4-21201

照明 In the lighting device in which the body and the lens are connected by the thin hinge portion as described above, light from the light emitter may pass through the thin portion and leak to the outside. Further, in a lighting device in which a body and a lens are connected by a hinge having a rotation axis such as a flat hinge, light from a light emitter may leak to the outside through a gap near the rotation axis. Such leakage of light at the hinge portion causes a reduction in the design of the lighting device.

In view of the above background, the present invention has a lighting device having a holder and a cover coupled to the holder via a hinge portion, a door trim including the lighting device, a vehicle door provided with the door trim, and An object of the present invention is to prevent light from leaking from a hinge portion in a vehicle provided with a vehicle door.

In order to solve the above problem, one embodiment of the present invention provides a holder (10) that supports a substrate (7) on which a light emitting element (5) is mounted on a surface, and a hinge (45) provided on the holder. A cover (11) that is coupled to define a storage chamber (47) that stores the substrate in cooperation with the holder, and a light guide unit provided on the cover to guide light from the light emitting element ( 42), wherein when the cover is closed with respect to the holder, a mating surface of the holder and the cover in the hinge portion from one of the holder and the cover (72A, 82A) is provided with a light-shielding piece (70) extending beyond (82A).

According to this configuration, the light blocking portion extends from one of the holder and the cover beyond the mating surface of the holder and the cover in the hinge portion. Thus, the light emitted by the light emitting element is blocked by the light shielding portion, and thus hardly enters the mating surface. Therefore, it is difficult for light to reach the hinge portion, and it is possible to prevent light from leaking from the hinge portion.

In the above aspect, the holder has a bottom wall (23) and an end wall (25B) provided at an edge of the bottom wall, and the hinge is coupled to the end wall, and the light shielding piece is provided. May extend from the cover to overlap the end wall of the holder when the cover is closed relative to the holder.

According to this configuration, since the light shielding portion extends from the cover, the cover is reinforced by the light shielding portion, and the rigidity of the cover can be increased.

Further, in the above aspect, the end wall of the holder is provided with a concave portion (80) which is depressed outward, and when the cover is closed with respect to the holder, the light shielding piece is in the concave portion. Good to be accepted.

According to this aspect, the concave portion is formed in the end wall, and the concave portion for receiving the light-shielding piece in the concave portion is formed in the end wall. By providing the concave portion in this way, the light-shielding piece can be arranged further outside, so that light entering the light guide portion is less likely to be blocked by the light-shielding piece.

In the above aspect, the recess may include a stepped portion (81) formed by bending an end of the end wall outward stepwise.

According to this aspect, the concave portion is formed by bending the end of the end wall stepwise. Thereby, since the concave portion can be formed without making the end of the end wall thin, light leakage at the end of the end wall can be prevented.

Further, in the above aspect, it is preferable that an outwardly extending flange (82) is provided at an end of the stepped portion, and the hinge portion is provided at a free end of the flange.

According to this aspect, the hinge portion is provided at the outer end of the flange extending outward. Therefore, light emitted from the light emitting element hardly reaches the hinge portion.

Further, in the above aspect, the stepped portion has a horizontal wall (81A) substantially parallel to the bottom wall and a vertical wall (81B) perpendicular to the horizontal wall, and the light-shielding piece is located closer to the end wall than the end wall. It is also preferable to be thin and to be arranged close to the horizontal wall and the vertical wall.

According to this aspect, the light shielding pieces are arranged close to the horizontal wall and the vertical wall. This makes it difficult for light to pass between the light shielding piece and the stepped portion, so that light emitted from the light emitting element hardly reaches the hinge portion.

In the above aspect, the holder is connected to the bottom wall and the end wall, and has a pair of holder side walls (24) facing each other, and the cover closes the cover with respect to the holder. Sometimes, it is preferable to have a cover side wall (41) to be superimposed on the holder side wall.

According to this aspect, when the cover is closed with respect to the holder, the holder side wall and the cover side wall overlap. This makes it difficult for light from the light emitting element to leak from between the holder and the cover, thereby preventing the design of the lighting device from being deteriorated.

In the above aspect, it is preferable that the two holder side walls are both continuously connected to the end wall, and the two cover side walls are both continuously connected to the light shielding piece.

According to this aspect, since the holder side walls are connected by the end walls, the rigidity of the holder is increased. Further, since the cover side walls are connected by the light shielding pieces, the rigidity of the cover is increased.

In the above aspect, the light guide includes a hole (42A) penetrating the cover, and the hole is disposed in a region surrounded by the two cover side walls and the light shielding piece. Good.

According to this aspect, it is possible to suppress a decrease in rigidity of the cover due to the provision of the hole.

Further, in the above aspect, the cover has a flat plate portion (40), and a plurality of reinforcing ribs (53) are provided on a surface of the flat plate portion facing the storage chamber, and the reinforcing rib is It is good to be connected to the light shielding piece.

According to this aspect, the cover has a flat plate portion, the reinforcing rib is provided on the inner surface side of the flat plate portion, and the reinforcing rib is connected to the light shielding piece, so that the cover can be reduced in weight. At the same time, the rigidity of the cover can be increased. Further, since the reinforcing ribs are provided on the surface facing the storage chamber, the reinforcing ribs are not exposed on the outer surface of the cover, so that the design can be improved.

Further, in the above aspect, the positioning portion (53A) further includes a light guide (12) received in the hole, wherein the reinforcing rib protrudes into the hole and the light guide abuts. It is good to form.

According to this aspect, since the positioning portion of the light guide is formed by the reinforcing rib protruding into the hole, the cover can be reinforced by the reinforcing rib and the positioning portion can be formed. Thus, there is no need to provide a positioning portion separately from the reinforcing rib, and the configuration is simplified.

In the above aspect, it is preferable that the hinge part forms a resin hinge.

According to this aspect, the hinge portion can be made simple and lightweight.

In the above aspect, the door trim (2) may be provided with the lighting device.

According to this aspect, since the light emitted by the light emitting element hardly leaks from the hinge portion, the design of the door trim can be improved.

In the above aspect, the vehicle door (D) having the door trim may be used.

According to this aspect, since the light emitted by the light emitting element is unlikely to leak from the hinge portion, the design of the vehicle door can be improved.

In the above aspect, the vehicle (C) having the vehicle door is preferable.

According to this aspect, since the light emitted by the light emitting element is unlikely to leak from the hinge portion, the design of the vehicle can be improved.

According to one embodiment of the present invention, in a lighting device having a holder and a cover coupled to the holder via a hinge portion, the light-shielding portion extends from one of the holder and the cover beyond the mating surface of the holder and the cover in the hinge portion. Is extended. Thus, the light emitted by the light emitting element is blocked by the light shielding portion, and thus hardly enters the mating surface. Therefore, it is difficult for light to reach the hinge portion, and it is possible to prevent light from leaking from the hinge portion.

In addition, in the above aspect, by adopting a configuration in which the light shielding portion extends from the cover, the cover is reinforced by the light shielding portion, and the rigidity of the cover can be increased.

In addition, in the above aspect, by adopting a configuration in which the light-shielding piece is received in the concave portion, the light-shielding piece can be disposed more outward, so that light entering the light guide hole is less likely to be blocked by the light-shielding piece. .

Further, in the above aspect, since the concave portion is formed by bending the end portion of the end wall stepwise, the concave portion can be formed without thinning the end portion of the end wall. Light leakage at the end of the wall can be prevented.

In addition, in the above aspect, since the hinge portion is provided at the outer end of the flange extending outward, light emitted from the light emitting element hardly reaches the hinge portion.

In addition, in the above embodiment, since the light shielding piece is arranged close to the horizontal wall and the vertical wall, light hardly passes between the light shielding piece and the stepped portion. This makes it difficult for light emitted from the light emitting element to reach the hinge portion.

In addition, in the above aspect, when the cover is closed with respect to the holder, the holder side wall and the cover side wall are configured to overlap, so that light from the light emitting element is less likely to leak from between the holder and the cover. This can prevent the design of the lighting device from being deteriorated.

In addition, in the above aspect, since the holder side walls are connected by the end walls, the rigidity of the holder is increased. Further, since the cover side wall is configured to be connected by the light shielding piece, the rigidity of the cover is increased.

Further, in the above aspect, the light guide portion includes the hole penetrating the cover, and the hole portion is arranged in the region surrounded by the two cover side walls and the light shielding piece. This can suppress a decrease in the rigidity of the cover due to this.

Further, in the above aspect, the cover has a flat plate portion having a flat plate shape, and a plurality of reinforcing ribs are provided on a surface of the flat plate portion facing the storage chamber side, and the reinforcing rib is connected to the light shielding piece. With the configuration, the weight of the cover can be reduced, and the rigidity of the cover can be increased.

Further, in the above aspect, the structure further includes a light guide received in the hole, the reinforcing rib protrudes into the hole, and the reinforcing rib forms a positioning portion to be abutted. By this, the cover can be reinforced and the positioning portion can be formed. Thus, there is no need to provide a positioning portion separately from the reinforcing rib, and the configuration is simplified.

In addition, in the above embodiment, since the hinge portion is configured as a resin hinge, the hinge portion can be made simple and lightweight.

In addition, in the above aspect, since the door trim is provided with the lighting device, light emitted by the light emitting element hardly leaks from the hinge portion, and the design of the door trim can be enhanced.

In addition, in the above aspect, since the vehicle door is configured to have the door trim, light emitted by the light emitting element hardly leaks from the hinge portion, and the design of the vehicle door can be enhanced.

In addition, in the above aspect, since the vehicle is provided with the vehicle door, the light emitted by the light emitting element hardly leaks from the hinge portion, and the design of the vehicle can be improved.

FIG. 1 is a schematic diagram for explaining a vehicle interior of a vehicle according to an embodiment. Side view of the door trim according to the embodiment Perspective view of a lighting device Perspective view of the lighting device when the cover is open (A) a sectional view taken along the line VA-VA of FIG. 4, and (B) a sectional view taken along the line VB-VB of FIG. A perspective view of a hinge part of a lighting device according to another embodiment.

Hereinafter, the lighting device 1, the door trim 2, the vehicle door D, and the vehicle C according to the embodiment of the present invention will be described.

The vehicle C according to the embodiment of the present invention is a four-wheeled vehicle. As shown in FIG. Sheet S _F for the placed vehicle in front constitutes the front seat, it is placed on the sheet S _R vehicle rearward constitutes a rear seat. A vehicle door D for occupants to get on and off the vehicle C is provided on the side of each vehicle seat S and on the vehicle outer side in the vehicle width direction. A door trim 2 is provided on each side of the vehicle door D inside the vehicle. Hereinafter, performs the door trim 2 provided described vehicle door D located on the side of the vehicle seat S _R constituting the rear seat.

照明 As shown in FIG. 2, the door trim 2 is provided with a lighting device 1 that emits light for illuminating the inside 4 of the door pocket 3. As shown in FIGS. 3 and 4, the lighting device 1 includes a substrate 7 (see FIG. 4) on which an electronic component 6 including a light emitting element 5 is mounted on a surface, and a plurality of connection terminals 8 (see FIGS. 4), a housing recess 9 for housing the substrate 7 (see FIG. 4), a holder 10 for supporting the substrate 7 inside the housing recess 9, and a cover 11 for covering the housing recess 9 (see FIG. 3). And a light guide 12 (see FIG. 3) coupled to the cover 11.

(4) As shown in FIG. 4, the substrate 7 is a so-called printed circuit board and has a substantially rectangular plate shape. Electronic component 6 is soldered to the surface of substrate 7. The electronic component 6 may include, for example, a chip resistor. In the present embodiment, the light emitting element 5 is a white LED, but is not limited thereto. The light emitting element 5 is an element that emits light by electric power, for example, a blue LED, an organic EL element, a small light bulb, or the like. Is also good. The light emitting element 5 is provided substantially at the center of the substrate 7 and at a position closer to the short side on one side (right side in FIG. 2). On the other short side of the substrate 7 (left side in FIG. 2), a plurality of through holes 13 are provided along the edge.

The connection terminal 8 is a metal rod-shaped member, and includes a semicircular arc portion 15 that is convex upward in a side view and an extension portion 16 that extends substantially horizontally from one end of the arc portion 15. The other end of the arc portion 15 is inserted into the through hole 13 from the front side of the substrate 7 and soldered. Thus, the connection terminal 8 is electrically connected to the electronic component 6.

The holder 10 is a resin member, and includes a main part 20 extending in one direction and a connector part 21 coupled to one end of the main part 20 in the extending direction, as shown in FIGS. ing.

As shown in FIG. 4, the main portion 20 includes a bottom wall 23 (see FIG. 5A) having a substantially rectangular plate shape in a plan view and a pair of bottom walls 23 provided along the long side edge. It has a horizontal wall 24 (holder side wall) and a pair of vertical walls 25 provided along the short side edge of the bottom wall 23. As shown in FIG. 3, a housing recess 9 for housing the substrate 7 is defined in the main portion 20 by a bottom wall 23, a horizontal wall 24, and a vertical wall 25. Hereinafter, the opening direction of the housing recess 9 is defined as upward. The direction along the extending direction of the main part 20 is defined as the left-right direction, and the side on which the connector part 21 is provided with respect to the main part 20 is defined as the left side. The direction perpendicular to the left-right direction and upward is defined as the front-back direction. Further, as needed, a direction (side) away from the housing recess 9 is referred to as an outside (outside), and a direction (side) toward the housing recess 9 is referred to as an inside (inside).

As shown in FIG. 5A, a first step portion 27 formed stepwise with respect to the upper surface of the bottom wall 23 along the lateral wall 24 at each of both long edges of the bottom wall 23, There is provided a second step portion 28 which is formed stepwise further above the one step portion 27. Each of the first step portion 27 and the second step portion 28 has a surface facing inward and a surface facing upward. Further, the first step portion 27 and the second step portion 28 are connected to the base end side (lower end side) of the lateral wall 24 at the outer ends.

上面 A plurality of protrusions 29 projecting upward are provided on the upper surface of the first step portion 27, respectively. The upper surfaces of the projections 29 are formed so as to be flush with each other. As shown in FIG. 5B, the substrate 7 is disposed so as to contact the upper surface of the protrusion 29 on the back surface. As shown in FIG. 4, the substrate 7 is in contact with the surface facing inward of the second step portion 28 on each of the long side surfaces. This restricts movement of the substrate 7 in a direction parallel to the short side.

(4) As shown in FIG. 4, the connector portion 21 has a rectangular cylindrical shape extending along the direction in which the main portion 20 extends. The connector portion 21 includes an upper wall 31 and a lower wall paired up and down, and a front wall and a rear wall 32 paired up and down. The connector portion 21 is coupled to a vertical wall 25 (hereinafter, connection wall 25A) on one side (left side in the drawing) of the main portion 20. The connection wall 25A is formed with a substantially rectangular notch 33 along the upper edge thereof. As a result, the accommodation recess 9 and the inside of the connector portion 21 communicate with each other via the notch 33. A plurality of downwardly concave grooves 34 are formed on the upper surface of the connection wall 25A. The base of the extension 16 of the connection terminal 8 is accommodated in the groove 34, and the extension of the extension 16 reaches the inside of the connector 21. Thus, by inserting the external connector into the connector section 21 and connecting the terminal of the external connector to the connection terminal 8, it becomes possible to supply power to the light emitting element 5.

の上 The upper wall 31 of the connector portion 21 is provided with a substantially rectangular opening 36 along the right edge thereof. Thus, when the housing recess 9 is not covered by the cover 11, that is, when the holder 10 is not closed, the inside and the outside of the connector portion 21 communicate with each other through the opening 36, and the connection terminal 8 is visually recognized from the outside. can do.

The lateral wall 24, the first step portion 27, and the second step portion 28 are connected to the connection wall 25A at one end (the side of the connector 21). The horizontal wall 24, the first step portion 27, and the second step portion 28 are connected to the other vertical wall 25 (hereinafter, an end wall 25B) at the other end (right side in the drawing). That is, the two side walls 24 are continuously connected together by the end wall 25B. The rigidity of the holder 10 is increased by connecting the two lateral walls 24 by the end wall 25B.

The cover 11 is a resin member, and as shown in FIGS. 3 and 4, a cover main body 38 having a substantially rectangular shape in a top view, and a cover extending portion coupled to the short side of the cover main body 38. 39.

As shown in FIG. 4, the cover main body 38 includes a flat rectangular plate 40 having a substantially rectangular shape, and a pair of cover side walls 41 provided along each long side edge of the flat plate 40. And a light guide section 42 provided on the flat plate section 40. The light guide portion 42 is a portion for guiding the light from the light emitting element 5 to the light guide 12, and is located at a position where the light guide hole 42 A (hole portion) penetrating the flat plate portion 40 matches the light guide hole 42 A. It has a provided cylindrical portion 42B. The light guide section 42 may be formed of a lens that can transmit light, instead of a hole.

The cover extending portion 39 is joined on one short side of the flat plate portion 40 of the cover main body portion 38. The cover extending portion 39 has a plate shape extending along the flat plate portion 40. The cover extending portion 39 has a substantially rectangular shape corresponding to the opening 36 provided in the upper wall 31 of the connector portion 21 in a top view.

The upper end of the end wall 25B of the holder 10 is connected to the short side on the other side of the flat plate part 40 via the hinge part 45. That is, the hinge portion 45 is connected to the upper end of the end wall 25B of the holder 10, and the other short side of the flat plate portion 40 is connected to the hinge portion 45.

(5) As shown in FIGS. 5A and 5B, the housing recess 9 is covered with the cover 11 by bending the hinge 45 approximately 90 degrees. That is, the holder 10 is closed by the cover 11, thereby forming a storage chamber 47 (see FIG. 5B) for storing the substrate 7. In other words, the accommodation room 47 is defined by the cooperation of the cover 11 and the holder 10. As shown in FIG. 5B, when the holder 10 is closed by the cover 11, one of the main surfaces of the flat plate portion 40 faces the housing recess 9 (that is, the housing chamber 47). Are located in Hereinafter, of the main surfaces of the flat plate portion 40, the surface facing the storage recess 9 is referred to as the back surface 40 A of the flat plate portion 40, and the opposite surface is referred to as the front surface 40 B of the flat plate portion 40.

As shown in FIG. 4, each of the cover side walls 41 has a plate shape extending substantially perpendicularly to the flat plate portion 40 from the back surface 40 A of the flat plate portion 40. The two cover side walls 41 face each other on the back surface 40A of the flat plate portion 40. When the holder 10 is closed by the cover 11, the cover side walls 41 are respectively arranged along the inner surface of the horizontal wall 24 (holder side wall). Thereby, as shown in FIG. 3 and FIG. 5 (B), the cover side walls 41 respectively overlap (overlap) the side walls 24 in a side view (a front-back direction view).

As shown in FIG. 4, a plurality of mounting claws 50 protruding outward are provided on the surfaces of the cover side walls 41 facing away from each other, that is, on the outer surfaces. The mounting claws 50 are formed on the outer surface of the cover side wall 41 at positions separated from each other. A mounting hole 51 which is a through hole is provided at a position corresponding to the mounting claw 50 on the lateral wall 24. When the housing recess 9 is closed by the cover 11, the mounting claws 50 engage with the corresponding mounting holes 51. This prevents the cover 11 from being opened unintentionally.

In the present embodiment, as shown in FIG. 5B, when the holder 10 is closed by the cover 11, the cover side wall 41 is in contact with the upper surface of the substrate 7 at its end face. As a result, the substrate 7 is sandwiched between the cover side wall 41 and the protrusion 29, and its vertical movement is restricted.

As shown in FIG. 4, a plurality of reinforcing ribs 53 are provided on the back surface 40 A of the flat plate portion 40, substantially parallel to the cover side wall 41, that is, extending in the longitudinal direction of the flat plate portion 40. In the present embodiment, two reinforcing ribs 53 are provided, each of which is adjacent to a different cover side wall 41. By making the flat portion 40 flat and providing the reinforcing ribs 53 on the back surface 40A, the cover 11 can be reduced in weight without reducing the rigidity of the cover 11. Further, by providing the reinforcing ribs 53 on the back surface 40A of the flat plate portion 40, that is, on the surface facing the storage chamber 47, the reinforcing ribs 53 are not exposed on the outer surface of the lighting device 1, and the reinforcing ribs 53 are provided on the front surface 40B. The design of the lighting device 1 can be improved as compared with the case where the lighting device 1 is provided.

(4) The light guide hole 42A has a substantially circular shape. The light guide hole 42 A is formed between the two cover side walls 41 and at a position offset toward the hinge portion 45 of the flat plate portion 40. As shown in FIG. 5B, when the holder 10 is closed by the cover 11, the light guide hole 42A is located at a position matching the light emitting element 5, more specifically, above the light emitting element 5. Thereby, the light guide hole 42 A effectively functions as a hole for guiding the light from the light emitting element 5 to the light guide 12 and extracting the light to the outside of the lighting device 1.

The cylindrical portion 42B is provided on the outer surface of the cover main body 38, more specifically, on the surface 40B of the flat plate portion 40. The cylindrical portion 42B has a cylindrical shape and extends substantially perpendicular to the surface 40B of the flat plate portion 40. The cylindrical portion 42B is coupled to the flat plate portion 40 along the edge of the light guide hole 42A. The cylindrical portion 42B is arranged at a position aligned with the light guide hole 42A, that is, the cylindrical portion 42B is arranged so that its axis is along the axis of the light guide hole 42A.

The light guide 12 is a columnar member extending in one direction, and is formed of a colorless and transparent resin capable of transmitting light. The light guide 12 preferably has an outer diameter substantially equal to the inner diameter of the cylindrical portion 42B. As shown in FIGS. 3 and 5B, one end of the light guide 12 is inserted into the cylindrical portion 42B, and the end is received in the light guide hole 42A.

As shown in FIG. 4, a part of the reinforcing rib 53 protrudes into the light guide hole 42A and protrudes toward the inside of the light guide hole 42A when viewed from above. As shown in FIG. 5B, when the light guide 12 is inserted, the light guide 12 is inserted until the end face at one end of the light guide 12 abuts against the reinforcing rib 53 that has entered the light guide hole 42A. That is, the portion of the reinforcing rib 53 protruding into the light guide hole 42A (53A in FIG. 4) prevents the light guide 12 from being inserted inside the light guide hole 42A, and determines the position of the light guide 12. It functions as the unit 53A. As described above, since the positioning portion 53A for determining the position of the light guide 12 is formed by projecting a part of the reinforcing rib 53 into the light guide hole 42A, there is no need to provide a separate positioning portion, and the configuration is simplified. be able to.

In the present embodiment, a plurality of retaining pieces 57 protruding toward the inner hole side of the cylindrical portion 42B are provided at the upper end of the cylindrical portion 42B. The retaining piece 57 resiliently contacts the outer peripheral surface of the light guide 12 when the light guide 12 is inserted into the cylindrical portion 42B. This makes it possible to more reliably prevent the light guide 12 from slipping out of the cylindrical portion 42B.

As shown in FIG. 2, the holder 10 and the cover 11 of the lighting device 1 are coupled to the outside of the door trim 2 on the vehicle side, and the light guide 12 is supported by the door trim 2 so as to extend back and forth. A part of the light guide 12 is housed inside the door pocket 3 and extends from the front end to the vicinity of the rear end of the door pocket 3. When the light emitting element 5 emits light and the light enters the light guide 12 at the end in the extending direction, the entire light guide 12 emits light. Thus, the light from the light guide 12 illuminates the area from the front end to the vicinity of the rear end of the door pocket 3, so that the occupant can easily visually recognize the contents inside the door pocket 3.

As shown in FIG. 5A, the hinge portion 45 is a resin hinge, and in the present embodiment, the hinge portion 45 has two plate portions 62 and a thin portion 64 provided between both plate portions 62. This is a living hinge. By using the hinge 45 as a resin hinge, the hinge 45 can be made simple and lightweight. In addition, as shown in FIG. 3, by using the living hinge as the hinge 45, the holder 10, the cover 11, and the hinge 45 can be integrally formed of resin. Thereby, the manufacturing process of the lighting device 1 can be simplified.

5) As shown in FIG. 5 (B), it is desirable that the thickness of the thin portion 64 be as small as possible so that the thin portion 64 can be easily bent and deformed. Therefore, light is easily transmitted through the thin portion 64, and light emitted from the light emitting element 5 may leak from the thin portion 64. Due to such light leakage, the design of the lighting device 1 is degraded. Therefore, in order to prevent light leakage, the lighting device 1 is provided with the light shielding piece 70.

As shown in FIGS. 4 and 5A, the light shielding piece 70 is provided on the back surface of the cover body 38, more specifically, on the back surface of the flat plate portion 40. As shown in FIG. 4, the light shielding piece 70 has a rib shape extending along the short side of the cover body 38 on the hinge 45 side. By providing the light shielding piece 70 on the cover body 38 in this manner, the rigidity of the cover body 38 can be increased. Both ends of the light shielding piece 70 are respectively connected to end surfaces of the cover side wall 41 on the hinge portion 45 side. That is, the two cover side walls 41 are continuously connected to the light shielding piece 70. The rigidity of the cover 11 is increased by connecting the cover side walls 41 with the light shielding pieces 70 in this manner. Further, the reinforcing ribs 53 are connected to the light shielding pieces 70 at the ends on the hinge part 45 side. Thereby, the rigidity of the cover 11 is further increased.

The light guide hole 42A is located in a region surrounded by the two cover side walls 41 and the light shielding piece 70. Since the cover body 38 is reinforced by the cover side wall 41 and the light shielding piece 70, the area surrounded by the two cover side walls 41 and the light shielding piece 70 has higher rigidity than other parts. Thus, by providing the light guide hole 42A in the area surrounded by the two cover side walls 41 and the light shielding piece 70, it is possible to suppress a decrease in the rigidity of the cover 11 due to the provision of the light guide hole 42A. In the present embodiment, since the light guide hole 42A is located between the outer edges of the two reinforcing ribs 53 (the outer edge of the flat plate portion 40), the light guide hole 42A is provided in a portion of the flat plate portion 40 having higher rigidity. I have. Thereby, a decrease in the rigidity of the cover 11 can be further suppressed.

(4) The cover main body 38 is further provided with a flange 72 extending from the base end of the light shielding piece 70 in a plate shape substantially parallel to the flat plate portion 40. As shown in FIGS. 5A and 5B, the flange 72 is connected to the thin portion 64 at its extended end, that is, at the free end.

受容 A receiving recess 80 that is recessed outward is provided at the upper end of the end wall 25B of the holder 10. The receiving recess 80 has a stepped portion 81 formed by stepwise bending the upper end of the end wall 25B outward, and an upper end edge of the stepped portion 81 parallel to the bottom wall 23 of the holder 10 and facing outward (the accommodation chamber 47). 5B, and a flange 82 extending in the form of a plate. The stepped portion 81 has a horizontal wall 81A substantially parallel to the bottom wall, and a vertical wall 81B extending upward from an outer end of the horizontal wall 81A. Both the thickness of the horizontal wall 81A and the thickness of the vertical wall 81B are substantially equal to the thickness of the lower portion of the stepped portion 81 of the end wall 25B. The flange 82 is connected to the upper end edge of the vertical wall 81B on the base end side. As shown in FIGS. 5A and 5B, the flange 82 is connected to the thin portion 64 at its extended end, that is, the free end.

As shown in FIG. 5B, when the housing recess 9 is covered by the cover 11, that is, when the holder 10 is closed by the cover 11, the two

flanges

72 and 82 are bent at the thin portion 64 and Oppose each other. That is, the two

flanges

72 and 82 respectively function as the plate portions 62, and the opposing surfaces of the

flanges

72 and 82 become the mating surfaces 72A and 82A, respectively. More specifically, the surface on the back side of the flange 72 of the cover 11 is the mating surface 72A, and the upper surface of the flange 82 of the holder 10 is the mating surface 82A.

When the holder 10 is closed by the cover 11, the light shielding piece 70 extends downward from the cover main body 38 to the bottom wall 23 of the holder 10 beyond the two

mating surfaces

72A and 82A. At this time, the light-shielding piece 70 overlaps the upper end of the end wall 25B when viewed from the left and right at the extended end.

As shown in FIG. 5B, when the holder 10 is closed by the cover 11, the light shielding piece 70 is located inside the receiving recess 80 and is received in the receiving recess 80. The light-blocking piece 70 is located outside the inner surface 25C of the substantially central portion of the end wall 25B in the vertical direction. The thickness (width in the direction orthogonal to the extending direction) of the light shielding piece 70 is smaller than the thickness of a portion below the stepped portion 81 of the end wall 25B. It is in a position that vertically aligns with the part. In this way, by setting the thickness of the light shielding piece 70, the amount of outward protrusion of the end wall 25B at the stepped portion 81 can be reduced. Further, it is preferable that the light shielding piece 70 is arranged at a position as close as possible to the vertical wall 81B and the horizontal wall 81A when the holder 10 is closed by the cover 11.

Next, the effects of the lighting device 1 and the door trim 2 provided with the lighting device 1 will be described. Part of the light emitted from the light emitting element 5 is reflected on the wall surface defining the accommodation room 47 and the end surface of the light guide 12, and proceeds toward the hinge part 45.

As shown in FIG. 5B, when the holder 10 is closed by the cover 11, the light-shielding piece 70 moves the mating surface 72A on the cover 11 side and the mating surface 82A on the holder 10 side of the hinge 45 from the cover 11. It extends beyond the holder 10. Accordingly, light that travels between the two

mating surfaces

72A and 82A is blocked by the light shielding piece 70, so that light hardly enters between the two

mating surfaces

72A and 82A. Therefore, light hardly reaches the thin portion 64, and light leakage from the thin portion 64 can be prevented.

In the present embodiment, the light shielding pieces 70 are arranged as close as possible to the horizontal wall 81A and the vertical wall 81B. Thereby, the gap between the light-shielding piece 70 and the horizontal wall 81A and the gap between the light-shielding piece 70 and the vertical wall 81B become smaller, and light hardly passes through each gap. This makes it difficult for the light emitted from the light emitting element 5 to reach the thin portion 64, so that light leakage from the thin portion 64 can be prevented.

When light enters between the two

mating surfaces

72A and 82A, the entered light is reflected by the mating surfaces 72A and 82A and reaches the thin portion 64. When light is reflected on the mating surfaces 72A and 82A, the traveling direction is likely to be random, and the intensity of the reflected light is reduced as compared to before the reflection. In the present embodiment, the thin portion 64 is provided at the outer edges of the two

flanges

72 and 82 extending outward. This makes it difficult for light that has entered between the two

mating surfaces

72A and 82A to reach the thin portion 64. Further, even when light that has entered between the mating surfaces 72A and 82A is reflected by the mating surfaces 72A and 82A and reaches the thin portion 64, the number of times that light is reflected before reaching the thin portion 64 is increased. be able to. Thereby, even when the light is reflected by the mating surfaces 72A and 82A and reaches the thin portion 64, the intensity of the light is reduced, and the intensity of the light leaking from the thin portion 64 can be reduced.

In the lighting device 1 configured by the cover 11 and the holder 10, light easily leaks from a gap between the cover 11 and the holder 10. In the lighting device 1 according to the present invention, when the cover 11 is closed with respect to the holder 10, the cover 11 is provided with the cover side wall 41 that overlaps the side wall 24 (holder side wall) in a side view (a front-back direction view). As described above, since the side wall 24 and the cover side wall 41 overlap with each other, light emitted from the light emitting element 5 is blocked by the side wall 24 and the cover side wall 41, so that it is difficult to reach the gap between the cover 11 and the holder 10. . This makes it difficult for light from the light emitting element 5 to leak from between the holder 10 and the cover 11, thereby preventing the design of the lighting device 1 from being deteriorated. In the present embodiment, further, since the cover side wall 41 is in contact with the upper surface of the substrate 7 at the end, light hardly enters the gap between the cover side wall 41 and the side wall 24. This makes it more difficult for light from the light emitting element 5 to leak from between the holder 10 and the cover 11.

受容 A receiving recess 80 which is recessed outward is provided at the upper end of the end wall 25B, and the light shielding piece 70 is received in the receiving recess 80. With this configuration, the light shielding piece 70 can be arranged on the outer side (the right side in FIG. 5B) as compared with the inner surface 25C in the central portion of the end wall 25B. By arranging in this manner, the light shielding piece 70 does not protrude inside the storage chamber 47, and light entering the light guide hole 42A is less likely to be blocked by the light shielding piece 70.

As a method of providing a concave portion that is recessed outward at the upper end portion of the end wall 25B, it is conceivable that the upper end portion is depressed by reducing the thickness of the upper end wall. In that case, since the thickness of the wall at the upper end is reduced, light is easily transmitted, and light may leak from the upper end. In the present embodiment, since the receiving recess 80 is formed by bending the upper end of the end wall 25B stepwise, the thickness of the wall forming the receiving recess 80 is substantially the same as the other portions of the end wall 25B. equal. Therefore, it is possible to prevent a decrease in rigidity of a portion where the receiving recess 80 is formed, and to prevent light from leaking from the receiving recess 80 to the outside.

設ける By providing the lighting device 1 in the door trim 2, it is possible to prevent light emission in a place other than the light guide 12. Thereby, the design of the door trim 2 can be enhanced.

Although the description of the specific embodiment is finished above, the present invention can be widely modified without being limited to the above embodiment. The light guide 12 is provided in the lighting device 1 of the above embodiment, but is not essential. The lighting device 1 is provided in the door trim 2 so that the light passing through the cylindrical portion 42B directly illuminates the inside of the door pocket 3. You may.

In the above embodiment, the light-shielding piece 70 is provided on the cover 11 and the receiving recess 80 is provided on the holder 10. However, the present invention is not limited to this mode. For example, the light-shielding piece 70 may be provided in the holder 10, and the receiving recess 80 may be provided in the cover 11. However, in order to make the lighting device 1 easy to assemble, the cover 11 may be made thinner by reducing the thickness of the cover 11. In this case, by providing the light shielding piece 70 on the cover 11, it is possible to prevent light from leaking from the hinge portion 45 and increase the rigidity of the cover 11 without increasing the thickness of the cover 11.

In the above embodiment, as shown in FIG. 5B, the two

flanges

72, 82 are connected by the thin portion 64 after the cover 11 is closed with respect to the holder 10, but the present invention is not limited to this mode. The number of times that the hinge portion 45 can be bent only needs to be at least once. For example, a configuration in which the thin portion 64 is completely broken after the cover 11 is closed with respect to the holder 10 (FIG. 6A) or a thin portion A configuration in which the portion 64 is partially broken (FIG. 6B) may be used.

In the above embodiment, the present invention has been described door trim 2 of a vehicle door D of the rear side located on the side of the vehicle seat S _R constituting the rear seat is not limited to this embodiment. For example, door trim 2 may be provided on the vehicle door D on the front side positioned on the side of the vehicle seat S _F constituting the front seat. Further, in the above embodiment, the vehicle C is a four-wheel, four-door automobile, but is not limited to this mode. The vehicle C may be a two-door automobile or a large vehicle such as a truck or a bus.

1: lighting device 2: door trim 5: light-emitting element 7: substrate 10: holder 11: cover 12: light guide 23: bottom wall 24: horizontal wall (holder side wall)
25B: End wall 40: Flat plate part 41: Cover side wall 42: Light guide part 42A: Light guide hole (hole part)
45: hinge part 47: accommodation chamber 53: reinforcing rib 53A: positioning part 70: light shielding piece 72: flange 72A: mating surface 80: receiving recess 81: stepped portion 81A: horizontal wall 81B: vertical wall 82: flange 82A: mating surface C: Vehicle D: Vehicle door

Claims

A holder for supporting a substrate on which a light emitting element is mounted,
A cover coupled to the holder via a hinge portion and defining a storage chamber for storing the substrate in cooperation with the holder;
A lighting device having a light guide provided on the cover to guide light from the light emitting element,
When the cover is closed with respect to the holder, a light-shielding piece is provided which extends from one of the holder and the cover beyond the mating surface of the holder and the cover in the hinge portion. Lighting equipment.
The holder has a bottom wall and an end wall provided at an edge of the bottom wall,
The hinge portion is coupled to the end wall,
The lighting device according to claim 1, wherein the light shielding piece extends from the cover so as to overlap with the end wall of the holder when the cover is closed with respect to the holder.
The end wall of the holder is provided with a concave portion that is recessed outward,
The lighting device according to claim 2, wherein the light shielding piece is received in the recess when the cover is closed with respect to the holder.
The lighting device according to claim 3, wherein the concave portion includes a stepped portion formed by bending an end of the end wall outward stepwise.
An outwardly extending flange is provided at an end of the step portion,
The lighting device according to claim 4, wherein the hinge portion is provided at a free end of the flange.
The stepped portion has a horizontal wall substantially parallel to the bottom wall, and a vertical wall perpendicular to the horizontal wall,
The lighting device according to claim 5, wherein the light-shielding piece is thinner than the end wall, and is arranged close to the vertical wall and the horizontal wall.
The holder has a pair of holder side walls connected to the bottom wall and the end wall and facing each other,
The illumination according to any one of claims 2 to 6, wherein the cover has a cover side wall to be overlapped with the holder side wall when the cover is closed with respect to the holder. apparatus.
The lighting device according to claim 7, wherein the two side walls of the holder are continuously connected to the end wall, and the two side walls of the cover are continuously connected to the light shielding piece.
The light guide includes a hole penetrating the cover,
The lighting device according to claim 8, wherein the hole is disposed in a region surrounded by the two cover side walls and the light shielding piece.
The cover has a flat plate portion,
A plurality of reinforcing ribs are provided on a surface of the flat plate portion facing the storage chamber side,
The lighting device according to claim 9, wherein the reinforcing rib is connected to the light shielding piece.
Further comprising a light guide received in the hole,
The lighting device according to claim 10, wherein the reinforcing rib protrudes into the hole to form a positioning portion with which the light guide abuts.
The lighting device according to any one of claims 1 to 11, wherein the hinge portion forms a resin hinge.
A door trim, wherein the lighting device according to any one of claims 1 to 12 is provided.
A vehicle door having the door trim according to claim 13.
A vehicle having the vehicle door according to claim 14.