JP2023008845A - Lighting device of vehicle interior component - Google Patents

Abstract

To inhibit interference of light passing through a lens in a lighting device of a vehicular interior component.SOLUTION: A lighting device 2 of a vehicular interior component 1 has: a casing 7; a light source 8 disposed within the casing; a lens 9 which is disposed within the casing and through which light of the light source passes; and a translucent part 10 which is provided at the casing and allows the light that has passed through the lens to pass to the outside of the casing. The lens has: a lens body part 60 through which the light passes; and an engagement part 61 which is provided at the lens body part and engages with the casing. The engagement part extends from the lens body part in a direction orthogonal to an optical axis of the lens body part.SELECTED DRAWING: Figure 6

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device for vehicle interior parts.

Patent Literature 1 discloses a vehicle lighting device. A vehicle lighting device has a housing, a plurality of light sources and a plurality of lenses arranged inside the housing. The housing is provided with a reflective portion and a translucent portion. The light emitted from the light source is diffused by the lens, reflected by the reflecting portion, and irradiated to the outside of the housing through the translucent portion. The lens has a lens body and a lens engaging portion that engages the housing.

JP 2017-33677 A

If the lens engaging portion is arranged near the light source, the light emitted from the light source may enter the lens body through the lens engaging portion. In this case, light incident on the lens body via the lens engaging portion may interfere with light directly incident on the lens body from the light source. As a result, there is a problem that the brightness of the light irradiated to the translucent portion becomes non-uniform.

SUMMARY OF THE INVENTION In view of the above background, it is an object of the present invention to suppress interference of light passing through a lens in a lighting device for vehicle interior parts.

In order to solve the above problems, the present invention provides a lighting device (2) for a vehicle interior component (1), comprising a casing (7), a light source (8) arranged in the casing, and the casing. a lens (9) disposed inside the light source through which the light from the light source passes; The lens has a lens body portion (60) through which the light passes, and an engaging portion (61) provided in the lens body portion and engaged with the casing, and the engaging portion is the lens body portion. portion in a direction orthogonal to the optical axis of the lens body portion.

According to this aspect, since the engaging portion extends from the lens body portion in the direction orthogonal to the optical axis of the lens body portion, the light emitted from the light source is less likely to enter the engaging portion directly. As a result, light entering the lens body from the engaging portion is suppressed, and interference of light passing through the lens can be suppressed in the lighting device of the vehicle interior component.

In the above aspect, the lens body may have an entrance surface (62) and an exit surface (63), and the engaging portion may be provided at a position closer to the entrance surface than the exit surface. .

According to this aspect, it becomes difficult for the light incident on the lens body from the light source to reach the engaging portion. This makes it easier for the light incident on the lens main body to exit from the lens exit surface.

The above aspect may have a recess (69) for receiving the engaging portion.

According to this aspect, when the light incident on the lens from the light source enters the engaging portion via the lens body, the light emitted from the engaging portion is blocked by the concave portion that receives the engaging portion. This suppresses interference caused by light emitted from the engaging portion.

In the above aspect, the light transmitting portion may be provided at a position offset from the optical axis, and the engaging portion may be provided on the side opposite to the light transmitting portion with respect to the optical axis.

According to this aspect, when the light incident on the lens from the light source enters the engaging portion via the lens main body, the light emitted from the engaging portion is emitted to the side opposite to the light transmitting portion. This suppresses the interference of light on the side of the transparent portion.

In the above aspect, the casing may have a reflecting portion (72) on the optical axis that reflects the light that has passed through the lens toward the translucent portion.

According to this aspect, it is possible to bend the optical path from the light that has passed through the lens to the translucent portion. Thereby, the shape of the casing can be arbitrarily set.

Said aspect WHEREIN: The said reflection part may be formed in a concave surface.

According to this aspect, the light reflected by the reflecting portion can be collected on the transmissive portion.

In the above aspect, the lens may have a contact portion (70) that contacts a side opposite to the engaging portion side.

According to this aspect, the engagement state between the engagement portion and the recess is maintained.

In order to solve the above-mentioned problems, the present invention provides a lighting device (2) for vehicle interior parts, comprising a casing (7) and a substrate (7) held in the casing and provided with a light source (8). 11), wherein a direction along the surface of the substrate is defined as a first direction and a direction along the surface of the substrate and perpendicular to the first direction is defined as a second direction; A direction perpendicular to the two directions is defined as a third direction, the substrate has a tapered hole (51) extending in the second direction, the casing projects into the tapered hole (51) from the second direction, and the tapered hole A protrusion (59) that restricts the movement of the substrate to one side in the first direction and the second direction with respect to the casing by abutting on the surface of the substrate on one side in the third direction. a support portion (53) that abuts; a flexible beam (54) that abuts on the surface of the substrate on the other side in the third direction; and a pawl portion (55) that restricts movement of the substrate to the other side in the second direction with respect to the casing by being caught by the portion.

According to this aspect, the substrate provided with the light source can be positioned in the casing with a simple configuration.

In order to solve the above problems, the present invention provides a lighting device (2) for a vehicle interior (1), comprising a first member (13) and a second member (14) coupled together, It has a casing (7) for receiving a light source (8) and a lens (9), said first member has a first fastening plate (30) with a first fastening hole (32) formed thereon, said first The two members are a second fastening plate (42) formed with a second fastening hole (44), a spacer (45) projecting from the first surface (48) of the second fastening plate, and the second fastening plate. The first fastening plate has a flexible beam (46) extending from the edge of the fastening plate and a claw (47) provided at the tip of the beam, and the first fastening plate contacts the spacer. The first fastening hole and the second fastening hole are arranged so as to be in contact with each other and coaxial with each other. The casing is fastened to the vehicle interior component by bolts (81) that pass through the fastening holes 2 and are screwed into the vehicle interior component.

According to this aspect, since the beams are extended corresponding to the spacers, the beams are easily bent. This facilitates the work of hooking the claw provided on the beam to the second fastening plate.

In order to solve the above problems, the present invention provides a lighting device (2) for a vehicle interior component (1), comprising a casing (7), a light source (8) arranged in the casing, and the casing. a lens (9) disposed inside the light source through which the light from the light source passes; The lens has a lens body portion (60) through which the light passes, and an engaging portion (61) provided in the lens body portion and engaged with the casing, and the engaging portion is the lens body portion. portion in a direction orthogonal to the optical axis of the lens body portion.

According to this aspect, since the engaging portion extends from the lens body portion in the direction orthogonal to the optical axis of the lens body portion, the light emitted from the light source is less likely to enter the engaging portion directly. As a result, light entering the lens body from the engaging portion is suppressed, and interference of light passing through the lens can be suppressed in the lighting device of the vehicle interior component.

In the above aspect, the lens body may have an entrance surface (62) and an exit surface (63), and the engaging portion may be provided at a position closer to the entrance surface than the exit surface. .

According to this aspect, it becomes difficult for the light incident on the lens body from the light source to reach the engaging portion. This makes it easier for the light incident on the lens main body to exit from the lens exit surface.

The above aspect may have a recess (69) for receiving the engaging portion.

According to this aspect, when the light incident on the lens from the light source enters the engaging portion via the lens body, the light emitted from the engaging portion is blocked by the concave portion that receives the engaging portion. This suppresses interference caused by light emitted from the engaging portion.

In the above aspect, the light transmitting portion may be provided at a position offset from the optical axis, and the engaging portion may be provided on the side opposite to the light transmitting portion with respect to the optical axis.

According to this aspect, when the light incident on the lens from the light source enters the engaging portion via the lens main body, the light emitted from the engaging portion is emitted to the side opposite to the light transmitting portion. This suppresses the interference of light on the side of the transparent portion.

In the above aspect, the casing may have a reflecting portion (72) on the optical axis that reflects the light that has passed through the lens toward the translucent portion.

According to this aspect, it is possible to bend the optical path from the light that has passed through the lens to the translucent portion. Thereby, the shape of the casing can be arbitrarily set.

Said aspect WHEREIN: The said reflection part may be formed in a concave surface.

According to this aspect, the light reflected by the reflecting portion can be collected on the transmissive portion.

In the above aspect, the lens may have a contact portion (70) that contacts a side opposite to the engaging portion side.

According to this aspect, the engagement state between the engagement portion and the recess is maintained.

In order to solve the above-mentioned problems, the present invention provides a lighting device (2) for vehicle interior parts, comprising a casing (7) and a substrate (7) held in the casing and provided with a light source (8). 11), wherein a direction along the surface of the substrate is defined as a first direction and a direction along the surface of the substrate and perpendicular to the first direction is defined as a second direction; A direction perpendicular to the two directions is defined as a third direction, the substrate has a tapered hole (51) extending in the second direction, the casing projects into the tapered hole (51) from the second direction, and the tapered hole A protrusion (59) that restricts the movement of the substrate to one side in the first direction and the second direction with respect to the casing by abutting on the surface of the substrate on one side in the third direction. a support portion (53) that abuts; a flexible beam (54) that abuts on the surface of the substrate on the other side in the third direction; and a pawl portion (55) that restricts movement of the substrate to the other side in the second direction with respect to the casing by being caught by the portion.

According to this aspect, the substrate provided with the light source can be positioned in the casing with a simple configuration.

In order to solve the above problems, the present invention provides a lighting device (2) for a vehicle interior (1), comprising a first member (13) and a second member (14) coupled together, It has a casing (7) for receiving a light source (8) and a lens (9), said first member has a first fastening plate (30) with a first fastening hole (32) formed thereon, said first The two members are a second fastening plate (42) formed with a second fastening hole (44), a spacer (45) projecting from the first surface (48) of the second fastening plate, and the second fastening plate. The first fastening plate has a flexible beam (46) extending from the edge of the fastening plate and a claw (47) provided at the tip of the beam, and the first fastening plate contacts the spacer. The first fastening hole and the second fastening hole are arranged so as to be in contact with each other and coaxial with each other. The casing is fastened to the vehicle interior component by bolts (81) that pass through the fastening holes 2 and are screwed into the vehicle interior component.

According to this aspect, since the beams are extended corresponding to the spacers, the beams are easily bent. This facilitates the work of hooking the claw provided on the beam to the second fastening plate.

front view of door trim Perspective view of the lighting device seen from the inside of the vehicle in the left-right direction Perspective view of the lighting device seen from the outside of the vehicle in the left-right direction Side view of the lighting device seen from the outside of the vehicle in the left-right direction Top view of lighting device Exploded perspective view of the lighting device seen from the inside of the vehicle in the left-right direction Exploded perspective view of the lighting device seen from the outside of the vehicle in the left-right direction perspective view of lens Side view of the lighting device seen from the vehicle interior side in the left-right direction, with the second member omitted Longitudinal cross-sectional view of lighting device (XX cross-sectional view in FIG. 4) Longitudinal cross-sectional view of lighting device (XI-XI cross-sectional view in FIG. 4)

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a lighting device for a vehicle interior product according to the present invention will be described below with reference to the drawings. A vehicle interior component is an interior material provided in a portion of a vehicle body facing the passenger compartment side. Vehicle interior parts include, for example, door trims provided on the inner surfaces of doors, instrument panels, center consoles, roof linings, and the like. In the present embodiment, an example of a door trim 1 will be described as a vehicle interior component. In order to describe each direction of the illumination device 2, a first direction, a second direction and a third direction which are orthogonal to each other are used. In this embodiment, the first direction corresponds to the longitudinal direction of the vehicle, the second direction corresponds to the lateral direction of the vehicle, and the third direction corresponds to the vertical direction of the vehicle.

As shown in FIG. 1, the door trim 1 is provided on the side surface of the door panel 3 on the inside of the vehicle. The door trim 1 has a main surface portion 4 facing in the left-right direction. The main surface portion 4 may be formed as a concave surface that is recessed outwardly of the vehicle in the left-right direction when viewed from above. A slit 5 penetrating in the left-right direction is formed in the main surface portion 4 . It is preferable that the slit 5 extends in the front-rear direction. An armrest 6 is provided in the center of the main surface portion 4 so as to protrude toward the inside of the vehicle and extend in the front-rear direction. The slit 5 is preferably arranged above the armrest 6 .

As shown in FIGS. 6 and 7, the illumination device 2 includes a casing 7, a light source 8 arranged in the casing 7, a lens 9 arranged in the casing 7 through which the light from the light source 8 passes, and the casing 7. and a light transmitting portion 10 for transmitting the light that has passed through the lens 9 to the outside of the casing 7 . A light source 8 is provided on a substrate 11 held within the casing 7 . The lighting device 2 has a control device 12 for controlling the light source 8 . The control device 12 is a microcomputer having an arithmetic device, nonvolatile memory, electronic circuits, and the like.

As shown in FIGS. 2-5, the casing 7 has a first member 13 and a second member 14 that are joined together. The casing 7 may be curved toward the outside of the vehicle in the left-right direction in accordance with the shape of the main surface portion 4 .

As shown in FIG. 3, the first member 13 includes a vertical wall portion 15 extending in the front-rear direction, a top wall portion 16 extending from the upper end of the vertical wall portion 15 toward the inside of the vehicle, and a vertical An extension wall 17 extending downward from the front end of the wall portion 15 and facing left and right, a front wall portion 18 extending toward the vehicle interior from the front end of the vertical wall portion 15 and the front end of the extension wall 17, and the rear end of the vertical wall portion 15. A first rear wall portion 19 extending toward the vehicle interior from the vertical wall portion 15, a first lower wall portion 20 extending toward the vehicle interior from the lower end of the vertical wall portion 15, and a second rear wall portion 21 extending toward the vehicle interior from the rear end of the extension wall 17 , and a second lower wall portion 22 extending from the lower end of the extension wall 17 toward the inside of the vehicle. The first member 13 is formed in a box shape that opens toward the inside of the vehicle. The edge portions of the upper wall portion 16, the front wall portion 18, the second lower wall portion 22, the second rear wall portion 21, the first lower wall portion 20, and the first rear wall portion 19 on the vehicle inner side in the left-right direction An open end of one member 13 is formed.

As shown in FIG. 3, the vertical wall portion 15 has a vertical wall portion upper portion 23 and a vertical wall portion lower portion 24 extending in the front-rear direction. The vertical wall portion upper portion 23 is offset toward the vehicle interior side relative to the vertical wall portion lower portion 24 . Between the vertical wall portion upper portion 23 and the vertical wall portion lower portion 24, a vertical wall portion intermediate portion 25 whose surface faces the vertical direction is provided.

As shown in FIG. 3 , the upper wall portion 16 of the first member 13 includes an inclined portion 26 inclined upward toward the inside of the vehicle in the left-right direction, and an end portion of the inclined portion 26 on the inside of the vehicle in the left-right direction. and a top wall edge 27 extending inboard in the direction of the vehicle.

As shown in FIG. 6 , the first member 13 has a plurality of first fastening portions 28 provided on the upper wall edge portion 27 . Each first fastening portion 28 has a bottom plate 29 , a first fastening plate 30 and at least one first side plate 31 . The bottom plate 29 extends in the vehicle exterior direction in the left-right direction from the upper wall edge portion 27 and has a surface facing the up-down direction. A first fastening hole 32 is formed in the first fastening plate 30 . The first fastening plate 30 extends upward from the vehicle outer edge of the bottom plate 29 in the left-right direction. The first fastening plate 30 has a surface facing in the left-right direction. The first fastening hole 32 penetrates the first fastening plate 30 in the left-right direction. In this embodiment, each first fastening portion 28 has a pair of first side plates 31 . Each first side plate 31 is coupled to the bottom plate 29 and the first fastening plate 30 . Each first side plate 31 has a surface facing in the front-rear direction. One first side plate 31 is connected to the front edge of the first fastening plate 30 and the front edge of the bottom plate 29 . The other first side plate 31 is joined to the rear edge of the first fastening plate 30 and the rear edge of the bottom plate 29 . The first lower wall portion 20 is provided with a plurality of lower fastening portions 33 extending downward.

As shown in FIG. 2, the second member 14 has a plate-like portion 34 whose surface faces the left-right direction and extends in the front-rear direction. The plate-like portion 34 has a plate-like portion upper portion 35 extending in the front-rear direction and a plate-like portion lower portion 36 extending downward from the front end of the plate-like portion upper portion 35 . The plate-like portion 34 is arranged to cover the open end of the first member 13 .

As shown in FIG. 7, a lower edge wall 37 is provided at the lower edge of the plate-like portion 34 and extends outwardly of the vehicle in the left-right direction. The lower edge wall 37 is provided along the upper surface of the first lower wall portion 20 of the first member 13 . The lower edge wall 37 has a surface facing in the vertical direction. The lower edge wall 37 is provided with a plurality of locking holes 38 penetrating vertically.

As shown in FIG. 6 , a plurality of locking claws 39 are provided on the upper surface of the first lower wall portion 20 . Each locking claw 39 extends upward from the upper surface of the first lower wall portion 20 and has a locking surface facing outward of the vehicle in the left-right direction. Each locking claw 39 projects from below the corresponding locking hole 38 . Further, the locking surface of each locking claw 39 abuts on the hole wall of the corresponding locking hole 38 on the vehicle outer side in the left-right direction. Thereby, the lower edge wall 37 of the second member 14 is locked to the first lower wall portion 20 of the first member 13 .

As shown in FIGS. 2 and 7 , the second member 14 has a plurality of second fastening portions 40 provided on the upper edge of the plate-like portion 34 . Each second fastening portion 40 has an upper edge wall 41 , a second fastening plate 42 and at least one second side plate 43 . The second fastening portion 40 also has a second fastening hole 44 , a spacer 45 , a flexible beam portion 46 , and a claw portion 47 provided at the tip of the beam portion 46 . The upper edge wall 41 extends from the upper edge of the plate-like portion 34 to the outside of the vehicle in the left-right direction and has a surface facing the up-down direction. The second fastening plate 42 extends upward from the vehicle outer edge of the upper edge wall 41 in the left-right direction. Each second fastening plate 42 has a first surface 48 that faces the outside of the vehicle in the left-right direction. The first surface 48 of each second fastening plate 42 faces the corresponding first fastening plate 30 in the left-right direction with a gap therebetween. Thereby, each second fastening plate 42 is arranged on the vehicle inner side in the left-right direction of the corresponding first fastening plate 30 .

The second fastening hole 44 penetrates the second fastening plate 42 in the left-right direction. Each second fastening hole 44 is arranged coaxially with the corresponding first fastening hole 32 .

As shown in FIG. 11 , the spacer 45 is provided on the first surface 48 of the second fastening plate 42 . Each spacer 45 protrudes laterally outward from the first surface 48 and abuts the corresponding first fastening plate 30 . That is, the spacer 45 forms a space between the first fastening plate 30 and the second fastening plate 42 . Each spacer 45 is arranged below the second fastening hole 44 . Each spacer 45 is preferably formed in an arc shape centered on the second fastening hole 44 when viewed in the left-right direction.

As shown in FIG. 11, the beam portion 46 extends from the upper edge portion of the second fastening plate 42 in the vehicle exterior direction in the left-right direction. The tip of the beam portion 46 is arranged on the outside of the vehicle in the left-right direction relative to the first fastening plate 30 . The claw portion 47 extends downward from the tip of the beam portion 46 . Moreover, the locking surface of the claw portion 47 faces toward the inside of the vehicle in the left-right direction. The locking surface 49 abuts on a surface 50 of the first fastening plate 30 on the vehicle outer side in the left-right direction. That is, the claw portion 47 of the second fastening portion 40 engages the first fastening plate 30 of the first fastening portion 28 . Thereby, the upper portion of the second member 14 is coupled to the upper portion of the first member 13 . In this state, the lower surface of the upper edge wall 41 of the second member 14 contacts the upper surface of the upper wall portion 16 of the first member 13 .

As shown in FIGS. 6 and 7, the substrate 11 is arranged on the inner side of the vertical wall portion lower portion 24 . The board 11 is an electronic circuit board and is formed in a planar shape. The substrate 11 faces up and down and extends in the front-rear direction. A plurality of light sources 8 are attached to the upper surface of the substrate 11 . The light source 8 may be, for example, an LED. The optical axis of each light source 8 extends vertically. The optical axis of the light source 8 is the axis with the maximum altitude. The substrate 11 has a tapered hole 51 extending in the left-right direction (second direction). The tapered hole 51 is preferably formed on the side edge of the substrate 11 on the vehicle exterior side. The tapered hole 51 is recessed toward the inside of the vehicle. The front-to-rear width of the opening end of the tapered hole 51 is formed larger than the front-to-rear width of the bottom portion of the tapered hole 51 . A plurality of notch portions 52 are formed in the side edge of the substrate 11 on the vehicle interior side.

As shown in FIG. 11 , the casing 7 includes a support portion 53 that abuts on one surface of the substrate 11 in the vertical direction (third direction) and a surface on the other side of the substrate 11 in the vertical direction (third direction). A flexible beam portion 54 that abuts and is provided at the tip of the beam portion 54 and is hooked on the edge of the substrate 11 to prevent the substrate 11 from moving to the other side in the left-right direction (second direction) with respect to the casing 7 . and a claw portion 55 that restricts movement.

In this embodiment, the first lower wall portion 20 is provided with a plurality of support portions 53 . Each of the multiple support portions 53 extends upward from the first lower wall portion 20 . Each of the plurality of support portions 53 extends in the left-right direction and is coupled to the vertical wall portion lower portion 24 . The vehicle-interior end of each of the plurality of support portions 53 extends further toward the vehicle interior than the vertical wall portion upper portion 23 . The upper ends of the plurality of support portions 53 face the vertical wall intermediate portion 25 with a gap therebetween in the vertical direction.

In addition, a plurality of substrate contact portions 57 are provided on the vertical wall portion lower portion 24 so as to protrude toward the vehicle interior side in the left-right direction. Each substrate contact portion 57 is preferably coupled to the upper end of the support portion 53 .

Furthermore, a plurality of beams 54 are provided on the lower surface of the vertical wall portion intermediate portion 25 . Each of the plurality of beam portions 54 extends from the lower surface of the vertical wall intermediate portion 25 toward the vehicle interior side in the left-right direction. The tip of each beam portion 54 extends in the vehicle interior direction in the left-right direction of the vertical wall portion upper portion 23 . The claw portion 55 protrudes downward from the tip of each beam portion 54 . Each claw portion 55 has a locking surface 56 that faces the outside of the vehicle in the left-right direction. A locking claw 58 for locking the substrate 11 is formed by the beam portion 54 and the claw portion 55 . As shown in FIG. 9, one locking claw 58 is arranged between two support portions 53 in the front-rear direction.

As shown in FIGS. 6 and 9, the casing 7 projects into the tapered hole 51 from the left and right direction (second direction) and abuts against the tapered hole 51, thereby causing the substrate 11 to move forward and backward with respect to the casing 7 (first direction). ) and a projection 59 that restricts movement to one side in the left-right direction (second direction). The convex portion 59 extends from the vertical wall portion lower portion 24 toward the vehicle interior side in the left-right direction.

As shown in FIG. 11 , the bottom surface of the substrate 11 abuts on the top ends of the plurality of support portions 53 . The upper surface of the substrate 11 abuts on the lower surfaces of the plurality of beams 54 respectively. Thereby, the position of the substrate 11 in the vertical direction with respect to the first member 13 is determined. A side edge of the substrate 11 on the vehicle outer side in the left-right direction abuts on a plurality of substrate abutting portions 57 . The plurality of notch portions 52 of the substrate 11 abut against the locking surfaces 56 of the corresponding plurality of claw portions 55 . Thereby, the position of the substrate 11 in the horizontal direction with respect to the first member 13 is determined. As shown in FIG. 6 , the projection 59 of the first member 13 projects into the tapered hole 51 of the substrate 11 . This determines the position of the substrate 11 in the front-rear direction with respect to the first member 13 .

As shown in FIG. 6, each lens 9 is positioned above the corresponding light source 8 . Each lens 9 is arranged side by side in the front-rear direction. As shown in FIG. 8 , each lens 9 has a lens body 60 through which light passes, and an engaging part 61 provided on the lens body 60 and engaged with the casing 7 . In this embodiment, each lens 9 has one lens body portion 60 and a pair of engaging portions 61 . The lens body 60 has an entrance surface 62 and an exit surface 63 . The incident surface 62 is provided below the lens body portion 60 . The exit surface 63 is provided on the upper portion of the lens body portion 60 . The optical axis of the lens body 60 extends vertically.

As shown in FIG. 8, the lens body portion 60 is formed in a plate-like shape with a surface facing in the left-right direction. Further, the lens body portion 60 extends in the vertical direction. When viewed from the left-right direction, the upper end of the lens body portion 60 is formed in an upwardly convex arc shape. A notch portion 65 recessed upward is formed in the center portion of the lower end of the lens body portion 60 in the front-rear direction. The curvature of the notch 65 is larger than the curvature of the upper end of the lens body 60 (for example, average curvature). The curvature of the upper end of the lens body 60 may or may not be constant. If not constant, for example, the curvature at the center of the upper end may be made smaller than the curvature outside the center. The optical axis of each lens body 60 passes through the center of the notch 65 . Further, light source introducing portions 66 protruding downward are provided on the front and rear sides of the notch portion 65 .

As shown in FIG. 8, the front end of the lens body 60 is provided with a front extension 67 extending forward. A rear extension portion 68 extending rearward is provided at the rear end of the lens main body portion 60 . The vertical width of the front extension portion 67 and the vertical width of the rear extension portion 68 are each formed smaller than the vertical width of the lens body portion 60 .

Furthermore, the engaging portion 61 is provided at a position closer to the entrance surface 62 than the exit surface 63 is. One of the engaging portions 61 is provided on the lens body portion 60 via a front extension portion 67 . The other end of the engaging portion 61 is provided on the lens body portion 60 via a rear extension portion 68 . Each engaging portion 61 is a convex portion extending from the lens body portion 60 in a direction perpendicular to the optical axis of the lens body portion 60 . In this embodiment, each engaging portion 61 extends to the first member side, that is, to the outside of the vehicle in the left-right direction. Each engaging portion 61 is preferably formed in a cylindrical shape.

As shown in FIGS. 6 and 7, the casing 7 has a plurality of recesses 69 for receiving the engagement portions 61 of the lens 9. As shown in FIGS. A plurality of recesses 69 are provided in the vertical wall portion upper portion 23 of the first member 13 . Each concave portion 69 extends to the outside of the vehicle in the left-right direction. Each recess 69 may be a bottomed hole or a through hole.

A pair of engaging portions 61 of each lens 9 protrude into corresponding recesses 69 . Each lens 9 is thereby attached to the first member 13 of the casing 7 .

As shown in FIGS. 7 and 10, the casing 7 has an abutting portion 70 that abuts on the opposite side of the convex portion of the lens body. In this embodiment, a plurality of contact portions 70 are provided on the plate-like portion 34 of the second member 14 . Each contact portion 70 extends from the plate-like portion 34 to the outside of the vehicle in the left-right direction. Each contact portion 70 is preferably in contact with the front extension portion 67 and the rear extension portion 68 of each lens 9 . As a result, the engagement portion 61 is prevented from falling off from the recess 69 .

As shown in FIG. 6, the lens 9 is arranged above the light source 8 . The lens 9 is attached to the first member 13 so that the optical axis of each lens body portion 60 and the optical axis of the corresponding light source 8 are aligned.

As shown in FIG. 10 , a reflecting portion 72 that reflects light that has passed through the lens 9 toward the translucent portion 10 is provided on the lower surface side of the inclined portion 26 of the first member 13 . The reflecting portion 72 extends in the front-rear direction along the inclined portion 26 . The reflecting portion 72 is arranged above the lenses 9 and on the optical axis of each lens 9 . The reflecting portion 72 is preferably mirror-finished. The reflecting portion 72 is preferably formed on a concave surface that is concave upward and outward of the vehicle in the left-right direction. Thereby, the reflected light from the reflecting portion 72 is focused on the translucent portion 10 .

As shown in FIG. 6 , the translucent portion 10 is provided at a position shifted from the optical axis of the lens body portion 60 . The translucent part 10 is preferably a slit 73 provided in the plate-like part 34 of the second member 14 . The light emitted from the light source 8 is emitted to the outside of the casing 7 through the translucent portion 10 . As shown in FIG. 2, the translucent part 10 penetrates the plate-like part 34 in the left-right direction. It is preferable that the translucent portion 10 extends in the front-rear direction.

As shown in FIG. 6 , a light guide member 80 may be provided in the translucent section 10 . The light guide member 80 may be made of translucent resin. The light guide member 80 is preferably arranged so as to cover the light transmitting section 10 .

As shown in FIG. 7, the light guide member 80 includes a main body portion 74, a stopper 75 provided on the outer side of the vehicle in the left-right direction of the main body portion 74, a plurality of tongue pieces 76 extending from below the stopper 75, and tongues 76 extending from below the stopper 75. and a mating hole 77 provided in the piece 76 . The body portion 74 is inserted into the slit 73 . As shown in FIG. 11 , the stopper 75 is sandwiched between the vehicle outer side surface of the plate-like portion 34 of the second member 14 in the left-right direction and the upper wall edge portion 27 . The tongue piece 76 extends downward from the stopper 75 and has a surface facing in the horizontal direction. The fitting hole 77 is formed through the tongue piece 76 in the left-right direction. A plurality of bosses 79 are provided on the surface of the plate-like portion 34 of the second member 14 on the vehicle outer side in the left-right direction. A plurality of bosses 79 protrude into corresponding mating holes 77 . The translucent part 10 is thereby attached to the second member 14 .

As shown in FIG. 10, the engaging portion 61 of the lens 9 is provided on the side opposite to the light transmitting portion with respect to the optical axis. That is, the engaging portion 61 and the concave portion 69 of the lens 9 are provided on the outside of the vehicle in the left-right direction with respect to the optical axis. The translucent part 10 is provided inside the vehicle in the left-right direction with respect to the optical axis.

As shown in FIG. 6, the control device 12 controls the extension wall 17 of the first member 13, the front wall portion 18, the second rear wall portion 21, the second lower wall portion 22, and the plate of the second member 14. It is arranged in the space formed by the lower part 36 of the ridge. A control device 12 is connected to the substrate 11 . A connector 84 is provided on the controller 12 . A connector hole 85 corresponding to the connector 84 is provided in the front wall portion 18 . A power line is connected to the connector 84 via a connector hole 85 . The control device 12 controls the power supplied to each light source to adjust the light emission state of the light source 8 .

A method of assembling the lighting device 2 will be described below. As shown in FIG. 6, the operator first attaches the substrate 11 to the first member 13 . At this time, the operator inserts the substrate 11 between the plurality of support portions 53 and the plurality of beam portions 54 . At this time, the plurality of beam portions 54 are elastically deformed, and the claw portions 55 move onto the upper surface of the substrate 11 . As the insertion of the substrate 11 progresses, the convex portion 59 of the first member 13 projects into the tapered hole 51 of the substrate 11 . Since the front-to-rear width of the opening end of the tapered hole 51 is wider than the front-to-rear width of the bottom portion of the tapered hole 51 , the protrusion 59 can easily enter the tapered hole 51 . Projection of the projection 59 into the tapered hole 51 determines the position of the substrate 11 in the front-rear direction with respect to the first member 13 . One side edge of the substrate 11 abuts on the substrate abutting portion 57 of the first member 13 , and a plurality of notch portions 52 are formed in the corresponding claw portion 55 . Thereby, the position of the substrate 11 in the left-right direction with respect to the first member 13 is determined. Further, the position of the substrate 11 in the vertical direction with respect to the first member 13 is determined by holding the substrate 11 vertically between the plurality of support portions 53 and the plurality of beam portions 54 .

Next, the operator attaches the multiple lenses 9 to the first member 13 . At this time, the operator inserts the pair of engaging portions 61 of each lens 9 into the corresponding concave portions 69 of the first member 13 . Thereby, each lens 9 is arranged above the corresponding light source 8 .

As shown in FIG. 7 , the operator then attaches the light guide member 80 to the light transmitting section 10 . At this time, the operator inserts the body portion 74 of the light guide member 80 into the light transmitting portion 10 and inserts the corresponding bosses 79 of the second member 14 into the respective fitting holes 77 of the light guide member 80 .

Next, the operator joins the first member 13 and the second member 14 together. At this time, the operator first locks the corresponding locking claws 39 of the first member 13 in the locking holes 38 of the second member 14 . Next, the operator causes each second fastening plate 42 of the second member 14 to face the corresponding first fastening plate 30 of the first member 13, and each claw portion 47 of the second member 14 to the corresponding first fastening plate. It hooks onto the edge of the plate 30 . Thereby, the first member 13 and the second member 14 are temporarily fixed.

In this coupled state, as shown in FIG. 10, the plurality of contact portions 70 provided on the second member 14 contact the front extension portion 67 and the rear extension portion 68 of each lens. As a result, the engagement portion 61 is prevented from falling off from the recess 69 . Also, the stopper 75 of the light guide member 80 is sandwiched between the plate-like portion 34 of the second member 14 and the upper wall edge portion 27 of the first member 13 . This determines the vertical position of the translucent portion 10 with respect to the casing 7 .

The lighting device 2 is fastened to the door trim 1 with bolts 81 screwed into the door trim 1 . A plurality of female screw holes are provided on the rear surface of the door trim 1 . The bolt 81 passes through the first fastening hole 32 and the second fastening hole 44 and is screwed into the female screw hole. The bolts 81 fasten the first fastening plate 30 and the second fastening plate 42 together. It is preferable that the lower fastening portion 33 is also screwed with the bolt 81 . When the lighting device 2 is attached to the door trim 1 , the translucent portion 10 of the lighting device 2 is arranged at a position corresponding to the slit 5 of the door trim 1 . The main body portion 74 of the light guide member 80 may protrude into the slit 5 of the door trim 1 .

As shown in FIG. 7, the engaging portion 61 of the lens 9 extends from the lens body portion 60 to the outside of the vehicle in the direction perpendicular to the optical axis of the lens body portion 60, that is, in the left-right direction. It is difficult for the light to enter the engaging portion 61 directly. As a result, light entering the lens body from the engaging portion 61 is suppressed, and interference of light passing through the lens 9 can be suppressed.

As shown in FIG. 8 , one end of the engaging portion 61 of the lens 9 is provided on the lens body portion 60 via a front extension portion 67 . The other end of the engaging portion 61 of the lens 9 is provided on the lens main body portion 60 via a rear extension portion 68 . As a result, the engaging portion 61 of the lens 9 is arranged at a position away from the optical axis of the light source 8 within the lens. Therefore, the light directly entering the engaging portion 61 from the light source 8 is suppressed. Further, the light reaching the engaging portion 61 via the front extension portion 67 and the rear extension portion 68 is also suppressed.

As shown in FIG. 7, the engaging portion 61 of the lens 9 is a convex portion, and is provided on the side opposite to the translucent portion 10 side. The engaging portion 61 is received in a recess 69 of the first member 13 . These prevent light from being emitted from the engaging portion 61 to the outside.

As shown in FIG. 10, since the reflecting portion 72 is provided, the optical path from the light source 8 to the translucent portion 10 can be bent. In this embodiment, since the light source 8 and the lens 9 are arranged below the reflecting section 72, the width of the illumination device 2 in the left-right direction can be reduced.

Although the specific embodiments have been described above, the present invention is not limited to the above embodiments and can be widely modified. For example, each orientation of the lighting device described above may be changed arbitrarily. The reflector 72 and the light guide member 80 may be omitted. Also, the recess 69 that receives the engaging portion 61 may be provided in the second member 14 .

1: Door trim (vehicle interior parts)
2: Lighting device 7 : Casing 8 : Light source 9 : Lens 10 : Translucent part 11 : Substrate 13 : First member 14 : Second member 30 : First fastening plate 32 : First fastening hole 42 : Second fastening plate 44 : Second fastening hole 45 : Spacer 46 : Beam portion 47 : Claw portion 48 : First surface 51 : Taper hole 53 : Support portion 54 : Beam portion 55 : Claw portion 59 : Convex portion 60 : Lens body portion 61 : Engagement Portion 62 : Incident surface 63 : Output surface 69 : Concave portion 70 : Contact portion 72 : Reflective portion 81 : Bolt

Claims (9)

A lighting device for vehicle interior parts,
a casing;
a light source disposed within the casing;
a lens disposed within the casing through which light from the light source passes;
a light-transmitting portion provided in the casing for allowing light that has passed through the lens to pass outside the casing;
The lens has a lens body through which the light passes, and an engaging portion provided in the lens body and engaged with the casing,
The lighting device for interior equipment for a vehicle, wherein the engagement portion extends from the lens body portion in a direction perpendicular to the optical axis of the lens body portion. The lens body has an incident surface and an exit surface,
2. The lighting device for vehicle interior parts according to claim 1, wherein the engaging portion is provided at a position closer to the incident surface than to the emitting surface. 3. The lighting device for vehicle interior parts according to claim 2, wherein said casing has a recess for receiving said engaging portion. The translucent part is provided at a position offset from the optical axis,
4. The lighting device for vehicle interior parts according to claim 3, wherein said engaging portion is provided on the opposite side of said light transmitting portion with respect to said optical axis. 5. The lighting device for vehicle interior parts according to claim 4, wherein the casing has a reflecting portion on the optical axis for reflecting the light that has passed through the lens toward the translucent portion. 6. The lighting device for vehicle interior parts according to claim 5, wherein said reflecting portion is formed on a concave surface. 7. The lighting device for vehicle interior equipment according to claim 6, wherein said casing has a contact portion that contacts a side of said lens opposite to said engagement portion side. A lighting device for vehicle interior parts,
a casing;
a substrate held within the casing and provided with a light source;
A direction along the surface of the substrate is defined as a first direction, a direction along the surface of the substrate and perpendicular to the first direction is defined as a second direction, and a direction perpendicular to the first direction and the second direction is defined as a second direction. as the third direction,
the substrate has a tapered hole extending in the second direction;
The casing is
a convex portion projecting into the tapered hole from the second direction and coming into contact with the tapered hole to restrict movement of the substrate to one side in the first direction and the second direction with respect to the casing;
a supporting portion that abuts on one surface of the substrate in the third direction;
a flexible beam portion in contact with the surface of the substrate on the other side in the third direction;
A lighting device for interior parts of a vehicle, comprising: a pawl portion provided at a tip of the beam portion and configured to restrict movement of the substrate to the other side in the second direction with respect to the casing by being caught by an edge portion of the substrate. . A lighting device for vehicle interior parts,
a casing having first and second members coupled together and receiving a light source and a lens;
The first member has a first fastening plate with a first fastening hole,
The second member includes a second fastening plate having a second fastening hole, a spacer projecting from a first surface of the second fastening plate, and a flexible member extending from an edge of the second fastening plate. and a claw portion provided at the tip of the beam portion,
The first fastening plate abuts on the spacer and is disposed so that the first fastening hole and the second fastening hole are coaxial,
the claw portion engages an edge portion of the first fastening plate;
A lighting device for a vehicle interior component, wherein the casing is fastened to the vehicle interior component by a bolt that passes through the first fastening hole and the second fastening hole and is screwed to the vehicle interior component.

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