Lighting device

Abstract

To provide a lighting device capable of properly holding a light guide. [Solution] The lighting device 1 comprises a light-emitting element 14, a rod-shaped light guide 30 that transmits the light emitted by the light-emitting element 14, and a housing 2 that houses the light-emitting element 14 and holds the light guide 30 at a predetermined light-receiving position. The housing 2 has clamping parts 41 and 42 that clamp the light guide 30 in an intersecting direction that intersects the axial direction of the light guide 30 and are hinge-like and openable along the intersecting direction, and restricting structures 48 and 49 that restrict the opening of the clamping parts 41 and 42 when the clamping parts 41 and 42 are pressed against the light guide 30. The clamping parts 41 and 42 of the housing 2 have protruding parts 45 that project toward the light guide 30 and press against the light guide 30.

Description

Technical Field

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[0001] The present invention relates to a lighting device including a light emitter, a rod-shaped light guide, and a housing that houses the light emitter and holds the light guide at a predetermined light-receiving position.

Background Art

[0002] Conventionally, a lighting device has been proposed that is configured to irradiate the surroundings with light emitted from a light emitter such as an LED through a rod-shaped light guide. This type of lighting device is used, for example, as a lamp mounted inside or outside a vehicle such as an automobile (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above-described conventional lighting device, the rod-shaped light guide is press-fitted into an annular support member, and this support member is locked to the housing, thereby fixing the light guide to the housing. However, depending on the magnitude of the dimensional tolerances (so-called manufacturing variations) of, for example, the light guide, the support member, and the housing, the holding force of the light guide by the above-described press-fitting and locking may be insufficient, and the light guide may be displaced by an external force such as vibration. From the viewpoint of properly exhibiting the function of the lighting device, it is desirable to suppress such displacement of the light guide.

[0005] One object of the present invention is to provide a lighting device capable of properly holding a light guide.

Means for Solving the Problems

[0006] In order to achieve the above-described object, the lighting device according to the present invention is characterized as follows.

[0007] A lighting device comprising a light-emitting element, a rod-shaped light guide that transmits light emitted by the light-emitting element, and a housing that houses the light-emitting element and holds the light guide at a predetermined light-receiving position, The aforementioned housing is A clamping portion that sandwiches the light guide in an intersecting direction that intersects the axial direction of the light guide and is hinge-like and can open and close along the intersecting direction, The device has a restricting structure that restricts the opening of the clamping portion when the clamping portion is pressed against the light guide body. It must be a lighting device. [Effects of the Invention]

[0008] According to the lighting device of the present invention, a rod-shaped light guide is held between clamping portions of a housing, and the clamping portions are pressed against the light guide, restricting the opening of the clamping portions, while the light guide is positioned at a predetermined light-receiving location. This ensures that the clamping portions make firm contact with the light guide by adjusting the degree of opening and closing of the clamping portions, regardless of the manufacturing variations of the light guide and housing. Furthermore, since a regulating structure is provided separately from the clamping portions, it is easy to design the regulating structure to have an arrangement and shape that can maintain the aforementioned pressure contact even when the manufacturing variations are large. Therefore, the lighting device with this configuration can properly hold the light guide.

[0009] The present invention has been briefly described above. Further details of the present invention will be clarified by referring to the accompanying drawings and reading through the embodiments for carrying out the invention described below. [Brief explanation of the drawing]

[0010] [Figure 1] Figure 1 is a perspective view showing a lighting device according to an embodiment of the present invention. [Figure 2] Figure 2 is an exploded perspective view of the lighting device shown in Figure 1. [Figure 3] Figure 3 is a perspective view illustrating the procedure for holding the light guide in the adapter shown in Figure 2. [Figure 4] Figure 4 is a perspective view showing the adapter shown in Figure 2 holding the light guide. [Figure 5] Figure 5 is a side view of the lighting device shown in Figure 1. [Figure 6] Figure 6 is a cross-sectional view of AA in Figure 5. [Figure 7] Figure 7 is a cross-sectional view of BB in Figure 6. [Figure 8] Figure 8 is an enlarged view of section C in Figure 7. [Figure 9] Figure 9 is a perspective view showing a modified lighting device. [Figure 10] Figure 10 is a side view illustrating the procedure for installing the lighting device shown in Figure 9 onto the target object. [Figure 11] Figure 11 is a side view showing the lighting device shown in Figure 9 installed on the mounting target. [Modes for carrying out the invention]

[0011] <Embodiment> Hereinafter, an embodiment of the lighting device 1 of the present invention will be described with reference to the drawings. The lighting device 1 shown in Figure 1 is a device used as a light fixture mounted inside or outside a vehicle such as an automobile, and is configured to irradiate the surroundings with light emitted from an LED 14 (see Figures 2 and 7) via a rod-shaped light guide 30 (see Figures 1, 2 and 7, etc.). For example, by emitting the light irradiated from the light guide 30 to the surroundings through a narrow slit-shaped opening (not shown) provided in a panel member of the vehicle (for example, a mounting target 60 described later), a linear ambient lighting with excellent decorative properties can be realized.

[0012] Hereinafter, for convenience of explanation, as shown in FIG. 1 and the like, "front", "rear", "left", "right", "upper", and "lower" are defined. The "front-rear direction", "left-right direction", and "upper-lower direction" are orthogonal to each other. The front-rear direction, left-right direction, and upper-lower direction do not necessarily coincide with the front-rear direction, left-right direction, and upper-lower direction of the vehicle on which the lighting device 1 is mounted. The "upper-lower direction" coincides with the "axial direction of the light guide body" of the present invention, and the "left-right direction" coincides with the "intersection direction intersecting the axial direction" of the present invention.

[0013] As shown in FIG. 2, the lighting device 1 includes an LED unit 10, a rod-shaped light guide body 30 that transmits the light emitted by the LED 14 in the LED unit 10, and an adapter 40 that holds the light guide body 30 and connects the light guide body 30 and the LED unit 10. Here, the LED unit 10 and the adapter 40 constitute the housing 2 of the lighting device 1 (see FIG. 1). Hereinafter, the configurations of each component constituting the lighting device 1 will be described in order.

[0014] First, the LED unit 10 will be described. As shown in FIGS. 2 and 7, the LED unit 10 includes a housing 11, a bus bar 12 housed in the housing 11, a substrate 13 housed in the housing 11, an LED 14 mounted on the substrate 13, and a cover 15 attached to the housing 11.

[0015] The housing 11 is a resin molded body and integrally comprises a substantially rectangular cylindrical connector portion 16 extending in the front-rear direction and a substantially rectangular cylindrical LED housing portion 17 located in front of the connector portion 16 and extending in the front-rear direction. The LED housing portion 17 has an open top. A metal busbar 12 is housed within the housing 11, straddling the connector portion 16 and the LED housing portion 17, and the circuit board 13 is housed in the LED housing portion 17. The LEDs 14 mounted on the circuit board 13 are exposed to the outside through the upper opening of the LED housing portion 17. A vehicle-side connector (not shown) is fitted into the connector portion 16 of the housing 11. When the vehicle-side connector is fitted into the connector portion 16, an electrical signal transmitted from the vehicle-side connector (not shown) is transmitted to the circuit board 13 via the busbar 12, and the LEDs 14 mounted on the circuit board 13 are controlled to emit light based on the electrical signal. A pair of left and right locking protrusions 18 are formed on the left and right side walls of the LED housing portion 17. The pair of left and right locking protrusions 18 will engage with the pair of left and right locking holes 21 of the cover 15, which will be described later.

[0016] The cover 15 is mounted on the LED housing portion 17 of the housing 11 so as to cover the LED housing portion 17, and functions to protect the substrate 13 and the LED 14 housed in the LED housing portion 17. The cover 15 is a resin molded body, has a substantially rectangular box shape extending in the front-rear direction, and the rear end of the cover 15 is open. On the upper wall of the cover 15, a substantially cylindrical opening 19 is formed corresponding to the LED 14 in the housing 11 so as to protrude upward and communicate the inside and outside of the cover 15 in the vertical direction. On the left and right side walls of the cover 15, a pair of left and right locking holes 21 and a pair of left and right locking protrusions 22 are formed so as to be arranged in the front-rear direction. The pair of left and right locking protrusions 22 will engage with the pair of left and right locking holes 55 described later of the adapter 40. The cover 15 is mounted on the LED housing portion 17 by sliding backward with respect to the LED housing portion 17 from the front side. In the state where the cover 15 is completely mounted on the LED housing portion 17, the locking hole 21 of the cover 15 and the locking protrusion 18 of the LED housing portion 17 are engaged. Thereby, the cover 15 is prevented from coming off (separating) forward from the housing 11 (LED housing portion 17). In the LED unit 10 in which the cover 15 is mounted on the LED housing portion 17, the LED 14 housed in the LED housing portion 17 is exposed to the outside through the upper opening of the LED housing portion 17 and the opening 19 of the cover 15 (see FIG. 7).

[0017] Next, the adapter 40 will be described. The adapter 40 is a resin molded body, and as shown in FIGS. 2 to 4 and the like, has a pair of left and right substantially rectangular flat plate-like portions 41 and a hinge portion 42 that connects the front edge portions extending in the vertical direction of the pair of left and right plate-like portions 41. The pair of left and right plate-like portions 41 can be opened and closed via the hinge portion 42. Hereinafter, for the sake of convenience of explanation, the state where the pair of left and right plate-like portions 41 are closed (see FIGS. 2 and 4) may be referred to as the "closed state", and the state where the pair of left and right plate-like portions 41 are open (see FIG. 3) may be referred to as the "open state". In the closed state, the inner surfaces (planes facing the opposite plate-like portion 41) of the pair of left and right plate-like portions 41 are in contact with each other.

[0018] Each of the pair of left and right plate-like portions 41 has a semi-cylindrical curved portion 43 that curves in a semi-circular arc shape and extends over the entire vertical direction, projecting outward in the left and right directions (away from the opposing plate-like portion 41) when closed. The lower end of the curved portion 43 extends further downward from the lower edge of the plate-like portion 41 (see Figure 3). When the pair of left and right curved portions 43 are closed, their inner surfaces 44 (the inner circumferential surfaces of the cylinder extending in the vertical direction) are positioned opposite each other, defining a "cylindrical space" with a roughly circular cross-section that extends in the vertical direction. A rod-shaped light guide 30 with a circular cross-section is housed in this "cylindrical space" (see Figure 7).

[0019] At the lower end edge of each of the pair of left and right curved portions 43, a semicircular, arc-shaped flange portion 44a is formed that extends radially inward over the entire circumferential area of ​​the semi-cylindrical curved portion 43 (see Figure 3). Therefore, in the closed state, the pair of left and right flange portions 44a are positioned opposite each other, forming an annular flange portion at the lower opening edge of the "cylindrical space" (see Figures 7 and 8). As shown in Figures 3 and 6, one or more circumferential locations (in this example, two locations on the left inner surface 44 and one location on the right inner surface 44) of each of the pair of left and right curved portions 43 have a projection portion 45 that extends vertically. In the closed state, each projection portion 45 makes pressure contact with the light guide 30 located in the "cylindrical space".

[0020] At the lower end of each of the left and right plate-like portions 41, a semicircular bulge 46 is formed that protrudes outward in the left and right directions (away from the opposing plate-like portion 41) when closed, surrounding the outer circumference of the curved portion 43 (see Figures 2 and 4, etc.). On the lower end surface of each of the left and right bulge portions 46, a semicircular arc-shaped groove 47 is formed that is recessed upward and extends along the circumferential direction over the entire circumferential area of ​​the semicircular bulge portion 46, surrounding the outer circumference of the curved portion 43 (see Figure 3). Therefore, when closed, the left and right grooves 47 are positioned opposite each other, forming an "annular groove" on the lower surface of the left and right bulge portions 46 (see Figure 7). The cylindrical opening 19 of the cover 15 of the LED unit 10 is housed in this "annular groove" (see Figure 7).

[0021] As shown in Figures 3 and 4, an engaging portion 48 is provided on the vertically extending rear edge (the edge opposite to the hinge portion 42) of the right plate-shaped portion 41, and an engaging portion 49 is provided on the vertically extending rear edge (the edge opposite to the hinge portion 42) of the left plate-shaped portion 41. The engaging portion 48 and the engaging portion 49 are configured to engage with each other in the closed state to prevent the pair of plate-shaped portions 41 from opening. Specifically, the engaging portion 48 consists of a pair of upper and lower locking frame portions 51 that extend to the left in the closed state. The engaging portion 49 corresponds to the pair of upper and lower locking frame portions 51 and consists of a pair of upper and lower locking projections 52 that protrude backward in the closed state, and a plate-shaped piece 53 that extends to the right in the closed state from a position between the upper and lower locking projections 52. As shown in Figure 4, in the closed state, the pair of upper and lower locking frame portions 51 and the pair of upper and lower locking protrusions 52 engage with each other, preventing the pair of plate-like portions 41 from opening. Furthermore, a plate-like piece 53 is interposed between the pair of upper and lower locking frame portions 51, so that the locking frame portions 51 and the plate-like piece 53 are positioned facing each other in the vertical direction, thereby preventing relative vertical movement of the pair of plate-like portions 41. The engaged portion 48 and the engaging portion 49 correspond to the "restrictive structure" of the present invention.

[0022] At the lower end of each of the left and right plate-shaped portions 41, a substantially flat locking piece 54 is formed so as to extend downward from a position offset to the left and right from the plate-shaped portion 41 when in the closed state. A locking hole 55 is formed in each locking piece 54 that penetrates in the thickness direction (left and right direction when in the closed state). As shown in Figures 2 and 4, when in the closed state, the left and right pair of locking pieces 54 are positioned opposite each other with a gap between them in the left and right direction. The configuration of each component constituting the lighting device 1 has now been described.

[0023] Next, the assembly procedure for the lighting device 1 will be described. In order to assemble the lighting device 1, first, the rod-shaped light guide 30 is held in the adapter 40. For this purpose, the pair of left and right plate-shaped parts 41 of the adapter 40 are opened (see Figure 3), and the light guide 30 is placed so that it follows the inner surface 44 of one of the pair of left and right curved parts 43 and the tip 30a of the light guide 30 (see Figure 2) abuts against the flange part 44a.

[0024] Next, the pair of left and right plate-shaped portions 41 of the adapter 40 are closed, and the engaged portion 48 and the engaging portion 49 engage with each other. This completes the adapter 40's holding of the light guide 30. In the state where the adapter 40 has completed holding the light guide 30, the light guide 30 is housed in the cylindrical space with its tip 30a (see Figure 2) abutting against the annular flange portion (see Figures 7 and 8), and the light guide 30 located within the cylindrical space is pressed against by a plurality of protruding portions 45 provided on the inner surface 44 of the curved portion 43 (see Figure 6). The tip 30a of the light guide 30 is exposed to the outside through the lower end opening of the cylindrical space (see Figure 7).

[0025] In this way, by abutting the tip 30a of the light guide 30 against the "annular flange portion" of the adapter 40, the light guide 30 can be positioned at the desired light-receiving position when the lighting device 1 is assembled (see Figure 7). Furthermore, the pressing contact of the protruding portion 45 with the light guide 30 makes it easier to control the direction of the force exerted by the curved portion 43 (its inner surface 44) on the light guide 30 (i.e., the direction of the protrusion of the protruding portion 45) compared to when the inner surface 44 of the curved portion 43 simply makes surface contact with the light guide 30. This makes it possible to suppress, for example, the light guide 30 from being held in a tilted position relative to the target position.

[0026] Next, the adapter 40 holding the light guide 30 is assembled to the LED unit 10, on which the cover 15 is mounted in the LED housing 17. To do this, the adapter 40 is assembled to the cover 15 such that the lower ends of the pair of left and right curved portions 43 are inserted into the opening 19 of the cover 15 of the LED unit 10 from above, the opening 19 of the cover 15 is accommodated in the "annular groove portion" of the adapter 40, and the pair of left and right locking pieces 54 of the adapter 40 cover both left and right side walls of the cover 15 (see Figures 5 and 7). Once the assembly of the adapter 40 to the cover 15 (LED unit 10) is complete, the assembly of the lighting device 1 is complete, and the lighting device 1 shown in Figure 1 is obtained.

[0027] In the assembled state of the lighting device 1, as shown in Figure 7, the locking hole 55 of the adapter 40 and the locking projection 22 of the cover 15 are engaged. This prevents the adapter 40 from coming loose (separating) upward from the cover 15 (i.e., the LED unit 10). The tip 30a of the light guide 30 held by the adapter 40 is positioned at a desired light-receiving position relative to the LED 14, so as to be directly above and adjacent to the LED 14 in the LED unit 10.

[0028] <Effects and Actions> As described above, according to the lighting device 1 of this embodiment, the rod-shaped light guide 30 is held between the clamping parts (a pair of plate-shaped parts 41 and a hinge part 42) of the housing 2, and the opening of the clamping parts 41 and 42 is restricted by the restricting structure (engaged part 48 and engaged part 49) of the housing 2 while the clamping parts 41 and 42 are pressed into contact with the light guide 30. As a result, compared to conventional fixing of the light guide by press-fitting, the clamping parts 41 and 42 can be reliably pressed into contact with the light guide 30 by opening and closing the clamping parts 41 and 42, regardless of the magnitude of manufacturing variations in the light guide 30 and the housing 2. Furthermore, since the restricting structures 48 and 49 are provided separately from the clamping parts 41 and 42, it is easy to design the restricting structures 48 and 49 to have an arrangement and shape that allows the clamping parts 41 and 42 to press into contact with the light guide 30 even if there are large manufacturing variations in the light guide 30 and the housing 2. Therefore, the lighting device 1 according to this embodiment can properly hold the light guide 30.

[0029] Furthermore, according to the lighting device 1 of this embodiment, the clamping portions 41 and 42 of the housing 2 have protruding portions 45 that project toward the light guide 30 and press against it. By pressing against the light guide 30 with these protruding portions 45, it becomes easier to control the direction of the force exerted by the clamping portions 41 and 42 on the light guide 30 (i.e., the direction of protrusion of the protruding portions 45) compared to the case where the clamping portions 41 and 42 simply make surface contact with the light guide 30. This makes it possible to suppress, for example, the light guide 30 from being held in a tilted position relative to the target position. As a result, the light guide 30 can properly transmit the light emitted by the LED 14. Moreover, since the protruding portions 45 are provided on the hinge-like opening and closing clamping portions 41 and 42, it is possible to suppress problems such as the protruding portions 45 being crushed due to locally excessive external force compared to the case where a protruding portion is provided in a simple hole and the light guide is pushed into that hole.

[0030] Furthermore, according to the lighting device 1 of this embodiment, the light guide 30 can be positioned at the light-receiving position by abutting it against the positioning wall portion (flange portion 44a) of the housing 2. For example, the light guide 30 can be positioned so that the end face of the tip 30a of the light guide 30 is adjacent to the light-emitting element (LED 14). This makes it easier to position the light guide 30, thereby improving the work efficiency of the production of the lighting device 1.

[0031] <Other embodiments> It should be noted that the present invention is not limited to the embodiments described above, and various modifications can be adopted within the scope of the present invention. For example, the present invention is not limited to the embodiments described above, and can be modified, improved, etc. as appropriate. Furthermore, the material, shape, dimensions, number, placement, etc. of each component in the embodiments described above are arbitrary and not limited as long as they can achieve the present invention.

[0032] In the above embodiment, the opening of the pair of left and right plate-shaped parts 41 is restricted only by the engagement of the engaged part 48 and the engaging part 49. In contrast, in the modified examples shown in Figures 9 to 11, the mounting target 60 for the lighting device 1 (for example, a predetermined panel on the vehicle side on which the lighting device 1 is mounted) has a pair of left and right plate-shaped parts 61 that are spaced apart and facing each other in the left-right direction (see Figure 10). The lighting device 1 is assembled to the mounting target 60 such that the pair of left and right plate-shaped parts 41 of the adapter 40 in the closed state are sandwiched between the pair of left and right plate-shaped parts 61, and the light guide body 30 extending upward from the pair of left and right plate-shaped parts 41 is housed in the space between the pair of left and right plate-shaped parts 61 (see the white arrow in Figure 10) (see Figure 11).

[0033] As a result, when the lighting device 1 is attached to the mounting target 60, in addition to the engagement of the engaged portion 48 and the engaging portion 49, the pair of left and right plate-shaped portions 41 are also prevented from opening by being held between the pair of left and right plate-shaped portions 41. In other words, the light guide 30 is held in a double position by the adapter 40 and the mounting target 60. Therefore, the state in which the light guide 30 is held between the pair of left and right plate-shaped portions 41 (the inner surfaces 44 of the curved portion 43) is maintained even more properly.

[0034] In the modified configuration shown in Figures 9 to 11, a pair of left and right locking protrusions 56 are provided on the left and right outer surfaces (the surfaces opposite to the surface facing the light guide 30) of the left and right plate-shaped portions 41 of the adapter 40 in the closed state (see Figure 9), and a pair of left and right locking holes 62 are formed in the left and right plate-shaped portions 61 corresponding to the left and right locking protrusions 56 (Figure 10). When the lighting device 1 is attached to the mounting target 60, the left and right locking protrusions 56 and the left and right locking holes 62 engage (see Figure 11), preventing the lighting device 1 from coming loose (separating) downward from the mounting target 60. This ensures that the state in which the left and right plate-shaped portions 61 clamp the left and right plate-shaped portions 41 (i.e., the double-locking state described above) is properly maintained.

[0035] Herein, the features of the embodiments of the lighting device 1 according to the present invention described above are briefly summarized and listed below in [1] to [5].

[0036] [1] A lighting device (1) comprising a light-emitting element (14), a rod-shaped light guide (30) that transmits the light emitted by the light-emitting element (14), and a housing (2) that houses the light-emitting element (14) and holds the light guide (30) at a predetermined light-receiving position, The housing (2) is The light guide (30) is sandwiched in an intersecting direction that intersects the axial direction of the light guide (30), and the clamping parts (41, 42) are hinge-like and can be opened and closed along the intersecting direction, The system includes a restricting structure (48, 49) that restricts the opening of the clamping parts (41, 42) while the clamping parts (41, 42) are pressed and in contact with the light guide (30), Lighting device (1).

[0037] In the lighting device with the configuration described in [1] above, a rod-shaped light guide is held between the clamping parts of the housing, and the clamping parts are pressed against the light guide, restricting the opening of the clamping parts, and the device is positioned at a predetermined light-receiving location. This ensures that the clamping parts make firm contact with the light guide by adjusting the degree of opening and closing of the clamping parts, regardless of the manufacturing variations of the light guide and housing. Furthermore, since a regulating structure is provided separately from the clamping parts, it is easy to design the regulating structure to have an arrangement and shape that can maintain the aforementioned pressing contact even when the manufacturing variations are large. Therefore, the lighting device with this configuration can properly hold the light guide.

[0038] [2] In the lighting device (1) described in [1] above, The clamping portions (41, 42) of the housing (2) are The light guide (30) has a protruding portion (45) that extends toward the light guide (30) and presses against and makes contact with the light guide (30), Lighting device (1).

[0039] According to the lighting device with the configuration described in [2] above, the clamping portion of the housing has a protruding portion that projects toward the light guide and makes pressing contact with the light guide. This pressing contact of the protruding portion with the light guide makes it easier to control the direction of the force exerted by the clamping portion on the light guide (i.e., the direction of the protrusion of the protruding portion) compared to when the clamping portion simply makes surface contact with the light guide. This makes it possible to suppress, for example, the light guide from being held in a tilted position relative to the target position. Therefore, the light guide can properly transmit the light emitted by the light emitter. Furthermore, since the protruding portion is provided on the clamping portion that opens and closes in a hinge-like manner, it is possible to suppress problems such as the protruding portion being crushed due to excessive localized external force compared to when the protruding portion is provided on a simple hole and the light guide is pushed into that hole.

[0040] [3] In the lighting device (1) described in [2] above, The aforementioned protruding portion (45) is Having a shape that extends along the axial direction, Lighting device (1).

[0041] According to the lighting device with the configuration described in [3] above, the protruding portion of the clamping portion of the housing has a shape that extends along the axial direction of the light guide. This makes it possible to more effectively suppress, for example, the light guide from being held in a tilted position relative to the target orientation. Thus, the light guide can properly transmit the light emitted by the light emitter.

[0042] [4] In the lighting device (1) described in [1] above, The clamping portion of the housing (2) is It has a pair of plate-shaped parts (41) that sandwich the light guide (30), and a hinge part (42) that connects the pair of plate-shaped parts (41), Each of the pair of plate-like portions (41) is On the side opposite to the side facing the light guide (30), there is an engaging portion (56) that engages with the mounting object (60) to which the lighting device (1) will be attached. Lighting device (1).

[0043] In the lighting device with the configuration described in [4] above, each of the pair of plate-shaped parts constituting the clamping portion has an engaging portion on the surface opposite to the surface facing the light guide body that engages with the mounting object of the lighting device. As a result, when the lighting device is attached to the mounting object (for example, a panel member of a vehicle), the clamping portion is prevented from opening by the engaged portion of the mounting object and the surrounding members. In other words, the light guide body is held in a doubly secure position by the housing and the mounting object. Therefore, the state in which the light guide body is held in place by the clamping portion is maintained even more properly.

[0044] [5] In the lighting device (1) described in [1] above, The housing (2) is The system has a positioning wall portion (44a) which positions the light guide (30) at the light receiving position by abutting the light guide (30) against it in the axial direction. Lighting device (1).

[0045] According to the lighting device with the configuration described in [5] above, the light guide can be positioned at the light-receiving position by abutting it against the positioning wall of the housing. For example, the light guide can be positioned so that its end face is adjacent to the light-emitting element. This makes it easier to position the light guide, thereby improving the work efficiency of the lighting device production process. [Explanation of Symbols]

[0046] 1. Lighting device 2 Housing 14 LEDs (light-emitting devices) 30 Light guide 41 Plate-shaped part (pinching part) 42. Hinge section (clamping section) 44a Flange section (positioning wall section) 45 Protruding part 48 Engaged part (regulatory structure) 49 Engagement part (regulating structure) 56 Locking protrusion (engaging part)

Claims

1. A lighting device comprising a light-emitting element, a rod-shaped light guide that transmits light emitted by the light-emitting element, and a housing that houses the light-emitting element and holds the light guide at a predetermined light-receiving position, The aforementioned housing is A clamping portion that sandwiches the light guide in an intersecting direction that intersects the axial direction of the light guide and is hinge-like and can open and close along the intersecting direction, The device has a restricting structure that restricts the opening of the clamping portion when the clamping portion is pressed against the light guide body. Lighting device.

2. In the lighting device according to claim 1, The clamping portion of the housing is It has a protruding portion that extends toward the light guide and presses against the light guide, Lighting device.

3. In the lighting device according to claim 2, The aforementioned protruding portion is Having a shape that extends along the axial direction, Lighting device.

4. In the lighting device according to claim 1, The clamping portion of the housing is It has a pair of plate-like parts that sandwich the light guide, and a hinge part that connects the pair of plate-like parts, Each of the pair of plate-like portions is The light guide has an engaging portion on the surface opposite to the surface facing it, which engages with the mounting object to which the lighting device will be attached. Lighting device.

5. In the lighting device according to claim 1, The aforementioned housing is The system has a positioning wall portion which positions the light guide at the light receiving position by abutting the light guide in the axial direction. Lighting device.

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