JP2017137000A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To hold a transparent material properly on a holder for sandwiching the transparent material and holding the same.SOLUTION: A luminaire 10B comprises: a light emission part 20; an optical fiber 30; and a holder 40 for holding the optical fiber 30 in a state in which the optical fiber 30 faces the light emission part 20. The holder 40 comprises: a holder body 41 to which the light emission part 20 is assembled; two sandwiching parts 44, 45 which are engaged in a state of sandwiching a held part 31 in a direction crossing an extension direction of the held part 31 held by the holder 40 on the optical fiber 30; and a protrusion 61 provided on a position parallel with the two sandwiching parts 44, 45 in the extension direction. The protrusion 61 suppresses deviation of an engagement portion of the two sandwiching parts 44, 45 toward an orientation where the holder 41 is positioned in the extension direction.SELECTED DRAWING: Figure 12

Description

  The present invention relates to an illuminating device, and more particularly to an illuminating device having a structure in which a light guide that transmits light from a light emitting unit is held by a holder.

  An illumination device used in a vehicle may be used for the purpose of improving the interior decoration of a vehicle by being attached to a door lining or a center console. As an example of such an illuminating device, the illuminating device of patent document 1 is mentioned. The lighting device described in Patent Literature 1 is a vehicle lighting device, and is attached to a predetermined position while holding a light source, a light guide (specifically, a light guide bar) that transmits light from the light source, and the like. A lighting device main body (hereinafter simply referred to as a main body).

JP 2011-121503 A

  In the illumination device described in Patent Document 1, the light guide is attached to the main body by sandwiching the light guide between the cover member assembled to the main body and the main body. More specifically, the cover member is formed with an engaging claw, and the engaging claw can be engaged with an engaged claw provided on the main body. The light guide is attached to the main body by engaging the engaging claw with the engaged claw in a state where the light guide is sandwiched between the cover and the main body.

  By the way, when engaging the engaging claw with the engaged claw, it is necessary that the regular part in the engaging claw is engaged with the engaged claw. However, for example, when the cover member moves unintentionally, a portion of the engaging claws engaged with the engaged claws may be shifted from a normal portion. Thus, if the engaged claw is engaged with the engaged claw at a position shifted from the original engagement location, the engaged state between the engaged claw and the engaged claw is not stable, As a result, there is a possibility that the light guide cannot be properly attached to the main body.

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide an illumination device that can appropriately sandwich and hold a light guide in a structure in which the light guide is sandwiched and held by a holder. Is to provide.

  According to the illumination device of the present invention, the problem is that the light guide, the linearly extending light guide, and the light guide are held in a state where the light guide faces the light emitter. A holder main body to which the light emitting unit is assembled, and the holder in the direction intersecting with the extending direction of the held portion held by the holder of the light guide. Two sandwiching portions that engage with each other while sandwiching the holding portion; and a position that is aligned with the two sandwiching portions in the extending direction; The problem is solved by including a suppression unit that suppresses displacement in the direction of positioning.

  In the illuminating device of the present invention configured as described above, the holder main body is provided with a suppressing portion, and by this suppressing portion, the engagement portion of the two sandwiched portions is in the extending direction of the held portion of the light guide. It is possible to prevent the holder body from being displaced in the direction in which it is located. As a result, the two sandwiched portions are engaged with each other at an appropriate engagement location, and as a result, the light guide is appropriately held by the holder.

Moreover, in the above-described lighting device, it is preferable that the suppressing portion is a protruding portion that protrudes from the holder body toward the two sandwiched portions in the extending direction.
In said structure, since the suppression part is comprised by the protrusion part which protruded from the holder main body, it becomes possible to provide a suppression part in a holder main body with a simpler structure.

Moreover, in the above-described lighting device, one of the two sandwiched portions has a convex portion formed on a surface facing the held portion, and the two sandwiched portions sandwich the held portion. It is preferable that the convex portion is in contact with the held portion.
In the above configuration, when the two sandwiched portions sandwich the held portion of the light guide, the convex portion provided on one sandwiched portion comes into contact with the held portion and presses the held portion. As a result, it is possible to prevent the held portion from being sandwiched between the two sandwiched portions from being pulled out.

In the above illumination device, the convex portion may be a wedge-shaped protrusion, and may have a slope closer to a surface facing the held portion as the distance from the holder body in the extension direction increases.
In the above configuration, the convex portion that presses down the held portion is formed of a wedge-shaped protrusion, and the protrusion has a slope that becomes lower as the distance from the holder body increases. As a result, it is possible to more effectively prevent the held portion that is sandwiched between the two sandwiched portions from coming out.

Moreover, in said illuminating device, it is good for the top part of the said convex part to be notched in circular arc shape.
In said structure, since the top part of a convex part is notched circularly, it becomes possible to suppress that the to-be-held part of a light guide is damaged by being pressed down by a convex part.

Further, in the above illumination device, one of the two sandwiched portions includes a claw-like engaging portion that engages with the other engaged portion, and the holder main body among the engaging portions in the extending direction. It is good to have the adjacent part which adjoins the near end part, and the said adjacent part is a shape which cannot be engaged with the said to-be-engaged part.
In the configuration described above, the adjacent portion adjacent to the engaging portion in one sandwiched portion cannot be engaged with the engaged portion provided in the other sandwiched portion. As a result, it is possible to more effectively suppress the displacement of the engagement portions of the two sandwiched portions in the extending direction of the held portion of the light guide.

In the above illumination device, in a state where the two sandwiched portions are engaged, a gap is formed between one of the two sandwiched portions and the holder body, and a part of the held portion is It is preferable to expose through the gap.
In the above configuration, a gap is formed between one of the sandwiched portions and the holder body in a state where the two sandwiched portions are engaged. And a part of to-be-held part is exposed through this clearance gap. This makes it possible to check the position of the held portion through the gap.

Further, in the illumination device, the light emitting unit includes a light source and a condenser lens that collects light emitted from the light source, and the holder body includes a wall having an opening, The two sandwiched portions may be engaged in a state where the held portion is sandwiched so that the end surface of the held portion faces the condenser lens through the opening.
In the above configuration, when the held portion is sandwiched between the two sandwiched portions, the end surface of the held portion faces the condenser lens through the opening. With this configuration, the light guide can be held by the holder so that the light emitted from the condenser lens can be satisfactorily captured.

In the illumination device, the light guide is an optical fiber, and a size of an end closer to the held portion of the opening is preferably smaller than a cross-sectional size of the optical fiber.
In the above configuration, the size of the end closer to the held portion in the opening is smaller than the cross-sectional size of the optical fiber forming the light guide. For this reason, the light emitted from the condenser lens is more appropriately directed to the optical fiber (strictly speaking, the end face of the held portion). As a result, transmission of light in the optical fiber is efficiently performed.

Further, in the above-described lighting device, one of the two sandwiched portions is connected to the other by a hinge and is rotatable with respect to the other, and the two sandwiched portions are restrained in the extension direction. It is preferable to engage at a position in front of the part.
In the above configuration, since the two sandwiched portions are connected by the hinge, handling of the sandwiched portions (particularly, the sandwiched portions are engaged with each other) is easier than a configuration in which the sandwiched portions are separated. . Further, in the extending direction of the held portion of the light guide, since the two sandwiched portions engage at a position before the suppressing portion, the position shift function of the engaging portion by the suppressing portion is appropriately exhibited. .

According to the present invention, the light guide is appropriately held by the holder by suppressing the displacement of the engagement portion between the two sandwiched portions.
Further, according to the present invention, it is possible to provide the holder body with the suppressing portion with a simple configuration.
Further, according to the present invention, the convex portion provided on one of the sandwiched portions comes into contact with the retained portion and presses the retained portion, so that the retained portion sandwiched between the two sandwiched portions comes out. Can be suppressed.
In addition, according to the present invention, since the convex portion formed of the wedge-shaped projection has a slope that becomes lower as the distance from the holder body increases, the held portion sandwiched between the two sandwiched portions comes out. Can be more effectively suppressed.
In addition, according to the present invention, since the top of the convex portion is cut out in an arc shape, it is possible to prevent the held portion of the light guide from being damaged by being pressed by the convex portion. It becomes.
Further, according to the present invention, since the one sandwiched portion cannot be engaged with the adjacent portion adjacent to the engaging portion and the engaged portion provided in the other sandwiched portion, the engagement between the two sandwiched portions is prevented. It is possible to more effectively suppress misalignment.
Further, according to the present invention, the gap is formed between the other sandwiched portion and the holder body in a state where one sandwiched portion is engaged with the other sandwiched portion. And it becomes possible to confirm the position etc. of a to-be-held part through this clearance gap.
Further, according to the present invention, the held portion that is sandwiched between the two sandwiched portions is opposed to the condenser lens through the opening. For this reason, it becomes possible to hold a light guide to a holder so that the light emitted from the condensing lens can be satisfactorily captured.
According to the present invention, the size of the end closer to the held portion of the opening is smaller than the cross-sectional size of the optical fiber forming the light guide. For this reason, the light emitted from the condenser lens is more appropriately directed to the optical fiber, and the light is efficiently transmitted in the optical fiber.
Further, according to the present invention, since the two sandwiched portions are connected by the hinge, handling of the sandwiched portions (particularly, the sandwiched portions are engaged with each other) is facilitated. In addition, since the two sandwiched portions are engaged at a position in front of the suppressing portion, the function of shifting the position of the engaging portion by the suppressing portion is appropriately exhibited.

It is a figure which shows the usage example of the illuminating device of this invention. It is a perspective view of an illuminating device, and is a figure when the illuminating device is seen from an oblique side. It is a perspective view of an illuminating device, and is a figure when seeing an illuminating device from diagonally downward. It is a figure when an illuminating device is seen from the downward direction. It is a figure when an illuminating device is seen from the side. It is a perspective view of a light emission part, and is a figure when the light emission part is seen from an oblique side. It is a figure when a light emission part is seen from the lower part. It is a perspective view which shows a light emission part main body, and is a figure when the light emission part main body is seen from the diagonal side. It is a figure which shows a holder when it exists in a releasing state. It is a figure which shows the holding state of a light guide, and is a figure which shows the AA cross section in FIG. It is a figure which shows the convex part with which one clamping part was equipped. It is a perspective view of the illuminating device which concerns on one Embodiment of this invention, and is a figure when the illuminating device is seen from the diagonal side. It is a perspective view of the holder which concerns on one Embodiment of this invention, and is a figure when seeing a holder from the diagonal side. It is a figure which shows the convex part which concerns on one Embodiment of this invention. It is a figure when the convex part which concerns on one Embodiment of this invention is seen from the direction opposite to the direction which is looking at the convex part in FIG.

  Hereinafter, one embodiment (this embodiment) of the present invention will be described with reference to the drawings as appropriate. In addition, embodiment described below is for making an understanding of this invention easy, and does not limit this invention. That is, the present invention can be changed and improved without departing from the gist thereof, and the present invention includes its equivalents.

  In the following description, three directions orthogonal to each other are referred to as “X direction”, “Y direction”, and “Z direction”. Here, the “Y direction” corresponds to the “extending direction of the held portion of the light guide” in the present invention. The “Z direction” corresponds to the “direction intersecting the extension direction of the held portion of the light guide” in the present invention, that is, the “first direction”. The “X direction” corresponds to the “direction intersecting both the extension direction of the held portion of the light guide and the first direction” in the present invention, that is, the “second direction”. Each of FIGS. 2 to 15 shows a corresponding direction (a direction that can be illustrated in each figure) among the above three directions.

<< Outline of Lighting Device According to the Present Embodiment >>
First, the outline | summary of the illuminating device which concerns on this embodiment is demonstrated. Hereinafter, the lighting device according to the present embodiment will be described by taking a lighting device used as an interior part (decorative part) for a vehicle as an example. However, the lighting device of the present invention is not limited to those used as interior parts for vehicles, but may be used as exterior parts for vehicles, or used for vehicles other than vehicles. It may be a thing.

  The illumination device according to the present embodiment (hereinafter, the present device 10) is used as a component constituting the vehicle door lining 1 as shown in FIG. More specifically, the apparatus 10 constitutes the vehicle door lining 1 together with the base trim 2 and the panel trim 3. The device 10 is disposed on the back side of the base trim 2 in the vehicle door lining 1. More specifically, the present apparatus 10 is fixed to the inner panel (not shown) of the door on the back side of the base trim 2 by a fastener such as a bolt.

  And this apparatus 10 is provided with the light source and the optical fiber as a light guide. The optical fiber receives light emitted from the light source and transmits the light along the fiber routing direction (direction in which the optical fiber is routed). The optical fiber is accommodated in an accommodation groove 4 formed on the surface of the base trim 2 and routed along the accommodation groove 4.

  As shown in FIG. 1, the upper end portion of the panel trim 3 is located at a position facing the accommodation groove 4 in the vehicle door lining 1. A fixed gap (gap) is provided between the portion of the base trim 2 where the housing groove 4 is formed and the upper end of the panel trim 3. The light emitted from each part of the optical fiber is emitted toward the vehicle interior through the gap.

  As described above, the present apparatus 10 distributes the light transmitted through the optical fiber through the gap formed between the base trim 2 and the panel trim 3. Thereby, in the vehicle door lining 1, light is emitted along the arrangement direction of the optical fiber (in other words, the gap formation direction). Thereby, the interior of the vehicle is illuminated and the decorativeness (designability) of the vehicle door lining 1 is improved.

<< Configuration Example of Lighting Device >>
Next, the structure of 10 A of illuminating devices which concern on 1st embodiment as a structural example of an illuminating device is demonstrated. Here, the illumination device 10 </ b> A corresponds to the illumination device according to the reference example.

  The illumination device 10A employs the configuration illustrated in FIGS. 2 to 5. Specifically, the illumination device 10A includes the light emitting unit 20, the optical fiber 30 as a light guide, and the holder 40 illustrated in FIG. . The light emitting unit 20 includes a light source and is assembled to a holder 40 (strictly, a holder main body 41). The optical fiber 30 is a member extending linearly, and has the same configuration as a general optical fiber. That is, the optical fiber 30 includes a core and a clad, and has a substantially circular cross section.

  The holder 40 is a component that holds the optical fiber 30 in a state where the optical fiber 30 faces the light emitting unit 20. Further, the holder 40 uses the end portion of the optical fiber 30 as the held portion 31 and holds the held portion 31.

  Incidentally, a contraction band 32 is fitted to the outer peripheral portion of the end portion of the optical fiber 30 serving as the held portion 31 as shown in FIGS. The contraction band 32 is a cylindrical rubber band that covers the outer peripheral portion of the end portion of the optical fiber 30. And the frictional resistance of the to-be-held part 31 and the holder 40 increases by the shrink band 32 being fitted to the outer peripheral part of the terminal part of the optical fiber 30. As a result, the held portion 31 of the optical fiber 30 held by the holder 40 is difficult to come out of the holder 40. Further, by covering the outer peripheral portion of the end portion of the optical fiber 30 with the contraction band 32, light leakage at the end portion is suppressed.

  The holder 40 itself is fixed by fixing a fixing portion 42 provided at an end portion of the holder 40 (strictly, one end portion in the X direction) to an inner panel of the vehicle door.

  Hereinafter, detailed configurations of the light emitting unit 20 and the holder 40 according to the first embodiment will be described with reference to FIGS. 2 to 5 and FIGS. 6 to 11.

(Light Emitting Unit 20)
The configuration of the light emitting unit 20 will be described. The light emitting unit 20 has the outer shape shown in FIG. Specifically, the light emitting unit 20 has a substantially rectangular parallelepiped outer shape, and includes a base 21 and a light emitting unit main body 22 as shown in FIG. The base 21 is a resin part, and the light emitting unit main body 22 is attached as shown in FIG. The base 21 is assembled to the holder 40 (strictly, the holder main body 41) as shown in FIGS.

  The base 21 will be described in detail. As shown in FIGS. 6 and 7, the base 21 has a structure in which two rectangular parallelepiped portions having different heights (lengths in the Y direction) are connected in the X direction. In the following description, a portion of the base 21 having a lower height is referred to as a low profile portion 21F, and a portion having a higher height is referred to as a high profile portion 21R.

  As shown in FIGS. 2 and 3, the low-profile portion 21 </ b> F is accommodated in the holder main body 41 in a state where the light emitting unit 20 is assembled to the holder 40. More specifically, a coupling protrusion 21a for snap fitting is formed on the side surface of the low-profile portion 21F. When the light emitting unit 20 is assembled to the holder 40, the low profile portion 21 </ b> F is accommodated in the accommodation space provided in the holder main body 41, and the coupling protrusion 21 a is engaged with the coupling hole 41 c formed in the holder main body 41. To do. Thereby, the low profile part 21F of the base 21 couple | bonds with the holder main body 41 by a snap fit system. As a result, the light emitting unit 20 is assembled to the holder main body 41.

  The high profile portion 21R has a rectangular tube shape. Further, as shown in FIGS. 2 and 3, the high-profile portion 21 </ b> R protrudes outside the holder main body 41 without being accommodated in the holder main body 41 when the light emitting unit 20 is assembled to the holder 40. Furthermore, the high-profile portion 21R is to be assembled to a power connector (not shown), and specifically, the power connector enters the square-cylindrical high-profile portion 21R.

  In addition, if it adds about the assembly | attachment system of the light emission part 20 to the holder 40, while the snap fitting coupling | bonding system by the coupling protrusion 21a and the coupling hole 41c is employ | adopted, uneven | corrugated fitting is further utilized. Specifically, as shown in FIGS. 6 and 7, a convex protrusion 21 b is provided on the surface of the base portion 21 where the coupling protrusion 21 a is formed. The convex protrusions 21b are provided on both sides of the coupling protrusion 21a in the X direction, and extend somewhat longer along the Y direction. On the other hand, as shown in FIG. 3, a slit 41a is formed in the side wall of the holder body 41 where the coupling hole 41c is formed. The slits 41a are respectively formed on both sides of the coupling hole 41c in the X direction, and are formed somewhat longer along the Y direction.

  And when the light emission part 20 is assembled | attached to the holder 40, while the coupling protrusion 21a engages with the coupling hole 41c, each convex protrusion 21b fits into the corresponding slit 41a. Thereby, the light emission part 20 is assembled | attached still more firmly with respect to the holder main body 41. FIG.

  In addition, the rib 41b for reinforcement is provided in the side wall part in which the slit 41a was formed among the holder main bodies 41, as shown in FIG.3 and FIG.4. One rib 41b is erected on both sides of each slit 41a in the X direction.

  The light emitting unit main body 22 forms an optical main part of the light emitting unit 20 and includes an LED substrate 23 and a condenser lens 24 as shown in FIG. The LED board 23 corresponds to a light source, includes an LED (not shown), and causes the LED to emit light when supplied with power. As shown in FIG. 8, the LED board 23 is provided with a power receiving terminal 23a. The terminal 23 a is located in the high-profile portion 21 </ b> R of the base 21 in a state where the light emitting unit main body 22 is attached to the base 21. Thereby, when the high-profile portion 21R is assembled to the power connector, the terminal 23a is connected to the power connector in the high-profile portion 21R.

  The condensing lens 24 is superimposed on the LED substrate 23 and condenses the irradiation light from the LED. The condensing lens 24 has a shape protruding from the flat base portion 24a in a mountain shape in the Y direction and narrowing toward the top. The condenser lens 24 is formed integrally with the base portion 24a. Incidentally, the material of the condensing lens 24 and the base portion 24a is not particularly limited as long as it has a condensing property.

  As shown in FIG. 6, the light emitting unit main body 22 is attached to the base 21, and specifically, the light emitting unit main body 22 is fitted into a recess formed in the end surface of the base 21 in the Y direction. In the state where the light emitting unit main body 22 is assembled to the base 21, as shown in FIGS. 6 and 7, the top of the condenser lens 24 is outside in the Y direction (the side opposite to the side where the base 21 is located). It is suitable.

(Holder 40)
The configuration of the holder 40 will be described. The holder 40 is a resin molded product, and has an appearance illustrated in FIG. 9 in a released state where the optical fiber 30 is not fixed. As shown in the figure, the holder 40 includes a holder main body 41, a fixing portion 42, a raised wall 43 as a wall, and two sandwiched portions 44 and 45. Note that each part of the holder 40 described above (specifically, the holder main body 41, the fixing part 42, the raised wall 43, and the two sandwiched parts 44 and 45) are all in an integrated state, in other words, one part. As a resin molding. However, the present invention is not limited to this, and each part of the holder 40 may be formed as a separate part, and these parts may be combined to form one holder 40.

  The holder body 41 is a portion to which the light emitting unit 20 (strictly speaking, the low-profile portion 21F of the base portion 21) is attached. Specifically, the holder main body 41 includes a substantially rectangular bottom wall portion and a side wall portion standing from the bottom wall portion. The side wall portion constituting the holder body 41 is formed along two long sides and one short side among the four sides corresponding to the outer edge of the bottom wall portion. In addition, the slit 41a and the coupling hole 41c described above are formed in the side wall portion, and ribs 41b are formed on both sides of the slit 41a.

  And the base 21 is accommodated in the space (accommodation space) enclosed by the bottom wall part and the side wall part. As shown in FIGS. 2 and 3, one end (one end in the X direction) of the accommodation space is not provided with a side wall and is an open end. For this reason, the light emitting unit 20 is attached to the holder main body 41 in a state where a part of the base portion 21 (specifically, the high-profile portion 21R) protrudes outside the accommodation space through the opening end.

  The light emitting unit 20 is attached to the holder main body 41 in a posture in which the top of the condenser lens 24 faces the bottom wall of the holder main body 41. More specifically, a part of the bottom wall portion is raised in a columnar shape to form a raised wall 43 as shown in FIGS. As shown in FIG. 10, the top of the condensing lens 24 enters the inside of the raised wall 43 in a state where the light emitting unit 20 is attached to the holder main body 41.

  On the other hand, as shown in FIG. 10, a through hole-shaped opening 43 h is formed in a portion of the raised wall 43 that is on the outermost side in the Y direction (the side opposite to the side where the light emitting unit 20 is located). . In a state where the light emitting unit 20 is attached to the holder main body 41, the top of the condenser lens 24 faces the opening 43h. For this reason, the light emitted from the condenser lens 24 passes through the opening 43h.

  The opening 43 h is a tapered circular hole as shown in FIG. 10, and the diameter is reduced as the distance from the condenser lens 24 increases. Incidentally, the opening 43h is not limited to a circular hole, and may be a semicircular hole or a rectangular hole. Thus, by changing the shape of the opening 43h, the amount of light passing through the opening 43h can be adjusted. That is, since the amount of light reaching the optical fiber 30 can be adjusted, by preparing a plurality of holders 40 having different shapes of the openings 43h, the optical fiber can be used while using LEDs having the same light emission intensity. The light emission amount from 30 can be adjusted.

  The fixing part 42 is a part formed to fix the holder 40 to a predetermined fixing position (specifically, an inner panel of the door). The fixing portion 42 protrudes in a tongue shape along the same direction from the end portion of the holder main body 41 in the X direction. As shown in FIGS. 4 and 9, a circular hole as a bolt insertion hole is formed in the central portion of the fixing portion 42. The holder 40 is fixed at a predetermined position of the inner panel by screwing the bolt inserted into the bolt insertion hole into a hole (not shown) provided in the inner panel of the door.

  The two sandwiching portions 44 and 45 are portions that hold the end portion of the optical fiber 30 in the holder 40, that is, the held portion 31. Specifically, as shown in FIGS. 2 and 5, the two sandwiching portions 44 and 45 are engaged with each other while sandwiching the held portion 31 in the Z direction. Thus, the held portion 31 of the optical fiber 30 is held by the holder 40 by being sandwiched between the two sandwiched portions 44 in the engaged state.

  Hereinafter, the details of the two sandwiched portions 44 and 45 will be described. As shown in FIGS. 2 and 9, the two sandwiched portions 44 and 45 are provided at a position in front of the raised wall 43 in the Y direction (a position opposite to the light emitting unit 20 when viewed from the raised wall 43). Also, one sandwiching portion 44 and the other sandwiching portion 45 are connected by a hinge. Therefore, one sandwiching portion 44 is rotatable with respect to the other sandwiching portion 45. More specifically, the one sandwiching portion 44 is illustrated in FIG. 9 by pivoting around a rotation axis (strictly speaking, the coupling portion 49 between the sandwiching portions 44 and 45) along the Y direction. It is possible to move between the release position and the holding position shown in FIGS.

  In addition, as shown in FIGS. 2 and 9, the rotation axis when one sandwiching portion 44 pivots, that is, the connecting portion 49 between the sandwiching portions 44 and 45 is opposite to the fixed portion 42 in the X direction. Located in. In other words, the fixed portion 42 is provided on the side opposite to the side on which the rotation shaft is located in the X direction. Due to such a positional relationship, the interference between the rotation shaft and the fixed portion 42 is appropriately suppressed.

  One sandwiched portion 44 is bent in an L shape, and an engaging claw 46 is provided at the tip of the short side portion. The engaging claw 46 corresponds to an engaging portion and has a certain width in the Y direction. The other sandwiching portion 45 includes a protrusion 48 that engages with the engaging claw 46 at an end in the X direction (an end opposite to the connecting portion 49). The protrusion 48 corresponds to the engaged portion, and has a certain width in the Y direction, like the engaging claw 46.

  Then, when one sandwiched portion 44 rotates with respect to the other sandwiched portion 45 and reaches the holding position illustrated in FIG. 5, the engaging claw 46 engages with the protruding portion 48. In this way, the two sandwiching portions 44 and 45 are engaged with each other. At this time, if the held portion 31 of the optical fiber 30 is disposed between the sandwiched portions 44 and 45, the held portion 31 is sandwiched between the two sandwiched portions 44 and 45 in the Z direction, and the sandwiched portion 44 and 45 is held.

  2 and 5, the two sandwiched portions 44 and 45 are adjacent to the held portion 31 in the X direction, more strictly, the sandwiched portions 44 and 45 are viewed from the held portion 31. Is engaged at a position adjacent to the held portion 31 on the opposite side to the connecting portion 49. As described above, the two sandwiching portions 44 and 45 are engaged with each other at the side position of the optical fiber 30 so that each sandwiching portion 44 and 45 has a more compact structure.

  More specifically, with the above configuration, the length required to sandwich the optical fiber 30 can be minimized as far as the dimensions (particularly the length in the Y direction) of the sandwiching portions 44 and 45 are concerned. Become. As a result, each of the sandwiched portions 44 and 45 is more compact, and the holder 40 is further downsized.

  Incidentally, the two sandwiching portions 44 and 45 are connected by the hinge as described above. With such a configuration, it is easier to handle the sandwiched portions 44 and 45 (particularly, the sandwiched portions 44 and 45 are engaged with each other) than the configuration in which the sandwiched portions 44 and 45 are separated from each other. . However, the present invention is not limited to this, and the two sandwiching portions 44 and 45 may not be connected but may be separated from each other.

  Further, the two sandwiching portions 44 and 45 adopt a structure that can satisfactorily hold the held portion 31 of the optical fiber 30. Below, the structure of each clamping part 44 and 45 is explained in full detail.

  One sandwiching portion 44 (L-shaped sandwiching portion 44) has a convex portion 50 formed on a surface facing the held portion 31, as shown in FIG. This convex part 50 consists of the protrusion protruded in the substantially rectangular parallelepiped shape. And the convex part 50 is contacting the to-be-held part 31, and presses the said to-be-held part 31 in the state which the two clamping parts 44 and 45 have pinched the to-be-held part 31. FIG. That is, while the two sandwiched portions 44 and 45 sandwich the held portion 31, the held portion 31 is pressed by the convex portion 50. Thereby, it is possible to effectively suppress the situation in which the held portion 31 in a state of being sandwiched between the two sandwiched portions 44 and 45 comes out.

  Note that the top surface of the convex portion 50 is curved in an arc as shown in FIG. 11 so that excessive stress is not generated when the held portion 31 is pressed down and the held portion 31 is not damaged. Is desirable.

  Further, the engaging claw 46 formed in one sandwiched portion 44 will be described. As shown in FIG. 9, the shape of one end of the engaging claw 46 in the Y direction (the end closer to the holder body 41) is The shape of other parts is different. More specifically, one end portion of the engaging claw 46 in the Y direction extends in the Z direction more than the other portion. The extended portion is a locking portion 46x formed in a substantially triangular shape.

  One end portion of the engaging claw 46 in which the locking portion 46x is formed in the Y direction cannot be engaged with the protruding portion 48 formed in the other sandwiched portion 45. Therefore, the engaging claw 46 is engaged with the protrusion 48 at a portion other than the one end.

  Then, in a state in which a portion other than the one end portion of the engaging claw 46 is engaged with the protruding portion 48, the locking portion 46 x formed at the one end portion is in contact with the protruding portion 48. Thus, when the latching | locking part 46x contact | abuts to the projection part 48, the latching | locking part 46x comes to latch the projection part 48 in a Y direction. Specifically, the protrusion 48 is displaced with respect to the engaging claw 46 in the Y direction (in other words, one sandwiched portion 44 is away from the other sandwiched portion 45 in the direction away from the holder body 41 in the Y direction). To be moved). As a result, the engaging claw 46 comes to engage with the protrusion 48 at an appropriate engaging portion. That is, the situation in which the engaging claw 46 is engaged with the protrusion 48 in a state of being displaced from the original engaging portion is appropriately suppressed by the locking portion 46x.

  The structure of the other sandwiching portion 45 will be described. As shown in FIGS. 5 and 9, a substantially U-shaped portion is provided at a midway position (halfway position in the X direction) of the sandwiching portion 45. The substantially U-shaped portion corresponds to a positioning portion 47 that positions the held portion 31 when holding the held portion 31 of the optical fiber 30. The positioning portion 47 is formed so as to extend from the outer surface of the raised wall 43 along the Y direction.

  When the held portion 31 is sandwiched between the two sandwiched portions 44 and 45, the held portion 31 is inserted into the inner space of the positioning portion 47 (the space surrounded by the U-shaped positioning portion 47). At this time, the end face of the held portion 31, that is, the end of the optical fiber 30 is abutted against the surface of the raised wall 43. In such a state, the held portion 31 is positioned by the positioning portion 47. That is, the positioning portion 47 positions the held portion 31 at a position where the end surface of the held portion 31 hits the raised wall 43.

  Further, when the held portion 31 is positioned at the above position by the positioning portion 47, a part of the end surface of the held portion 31 that abuts the raised wall 43 is formed on the raised wall 43 as shown in FIG. It comes to face the opened opening 43h. Further, the top of the condenser lens 24 is located on the opposite side of the held portion 31 across the opening 43h. Therefore, when the held portion 31 is positioned by the positioning portion 47, the end surface of the held portion 31 faces the top of the condenser lens 24 through the opening 43h. In other words, the positioning unit 47 positions the held portion 31 at a position where the end surface of the held portion 31 faces the condenser lens 24 through the opening 43h. Thereby, the light emitted from the condenser lens 24 is appropriately directed to the end of the optical fiber 30 through the opening 43h.

  As shown in FIG. 10, the size of the end closer to the held portion 31 (specifically, the size of the outer diameter) of the opening 43h is the cross-sectional size of the optical fiber 30 (specifically, the outer diameter). It is slightly smaller than the diameter). For this reason, the light emitted from the condensing lens 24 comes to the end of the optical fiber 30 more appropriately. As a result, transmission of light in the optical fiber 30 is performed efficiently.

  Incidentally, the size of the opening 43 h (strictly speaking, the size of the end closer to the held portion 31) is not limited to the size illustrated in FIG. 10, and is much smaller than the cross-sectional size of the optical fiber 30. It may be. Thereby, as described above, the amount of light reaching the optical fiber 30 can be controlled.

  As described above, after the held portion 31 is positioned by the positioning portion 47, one sandwiching portion 44 rotates with respect to the other sandwiching portion 45, and the two sandwiching portions 44, 45 are engaged with each other. That is, the two sandwiched portions 44 and 45 engage with the held portion 31 sandwiched so that the end surface of the held portion 31 faces the condenser lens 24 through the opening 43h. Thereby, the optical fiber 30 comes to be hold | maintained at the holder 40 in the state which can capture | acquire the light emitted from the condensing lens 24 favorably.

  In addition, the protrusion part 48 with which the other clamping part 45 is provided is provided in the outer peripheral surface of the positioning part 47, as shown in FIG.2 and FIG.5. More specifically, the protrusion 48 is formed so as to protrude in the X direction from the end located on the opposite side of the outer periphery of the positioning portion 47 from the connecting portion 49 of the two sandwiched portions 44 and 45 in the X direction. Has been. Thus, by providing the projection part 48 in the positioning part 47, it becomes possible to engage the clamping parts 44 and 45 with the to-be-held part 31 of the optical fiber 30 positioned.

  In a state where the two sandwiched portions 44 and 45 are engaged, that is, in a state where the optical fiber 30 is held by the holder 40, as shown in FIGS. Is partly surrounded by two sandwiching portions 44, 45. More specifically, the held portion 31 is accommodated in the internal space of the positioning portion 47 in a state where the two sandwiching portions 44 and 45 are engaged. Further, in a state where the two sandwiched portions 44 and 45 are engaged, as shown in FIGS. 2 and 5, a part of the sandwiched portion 44 (portion corresponding to the long side of the L shape) is a positioning portion. 47 is in contact with the open end. As a result, a part of the outer periphery of the held portion 31 is surrounded by the one sandwiching portion 44 and the positioning portion 47 of the other sandwiching portion 45.

  As described above, a part of the outer periphery of the held portion 31 is surrounded by the two sandwiched portions 44 and 45, so that the holding state of the held portion 31 is stabilized. Further, light leakage from the held portion 31 is suppressed, and as a result, light transmission through the optical fiber 30 is efficiently performed.

  Further, the width (length in the Y direction) of one sandwiched portion 44 is shorter than the width (length in the Y direction) of the positioning portion 47 of the other sandwiched portion 45. More specifically, as shown in FIG. 2, one end of one sandwiched portion 44 is substantially at the same position as one end (free end) of the positioning portion 47 in the Y direction. On the other hand, the other end of one of the sandwiched portions 44 is located somewhat in front of the other end (fixed end) of the positioning portion 47 in the Y direction, as shown in FIG. In the above configuration, when the two sandwiching portions 44 and 45 are engaged, a gap g is formed between the one sandwiching portion 44 and the holder main body 41 (strictly, the raised wall 43) as shown in FIG. Become so.

  When the two sandwiched portions 44 and 45 are engaged, the portion of the held portion 31 in the positioning portion 47 that is located near the fixed end of the positioning portion 47 in the Y direction is the gap g described above. Is exposed through. For this reason, it is possible to visually recognize the position of the held portion 31 and the holding state (for example, whether the end surface of the held portion 31 is in contact with the raised wall 43 reliably) through the gap g.

<< Modification Example of Configuration of Lighting Device >>
Next, the structure of the illuminating device 10B which concerns on 2nd embodiment is demonstrated as a modification of the structure of an illuminating device. Here, the lighting device 10B corresponds to the device 10 (that is, the lighting device of the present invention).

  The lighting device 10B according to the second embodiment is the same as the lighting device 10A according to the first embodiment in terms of the basic configuration. That is, as illustrated in FIG. 12, the illumination device 10 </ b> B includes a light emitting unit 20, an optical fiber 30, and a holder 60. FIG. 12 is a perspective view of a lighting device 10B according to the second embodiment, and corresponds to FIG. In FIG. 12, parts having the same functions and structures as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment. In addition, hereinafter, description of components having the same reference numerals as those in the first embodiment will be omitted.

  On the other hand, among the illumination devices 10B according to the second embodiment, the holder 60 is different from the holder 40 included in the illumination device 10A according to the first embodiment. Hereinafter, the holder 60 according to the second embodiment will be described focusing on differences from the holder 40 according to the first embodiment.

  The holder 60 according to the second embodiment is the same as the holder 40 according to the first embodiment in terms of the basic configuration. That is, as shown in FIG. 13, the holder 60 according to the second embodiment includes a holder main body 41, a fixing portion 42, a raised wall 43 as a wall, and two sandwiched portions 44 and 45. FIG. 13 is a perspective view showing a holder 60 according to the second embodiment. In addition, in FIG. 13, about the part which has the same function and structure as the part which the holder 40 which concerns on 1st embodiment has, the code | symbol similar to the code | symbol in 1st embodiment is attached | subjected. In addition, the description of the parts denoted by the same reference numerals as those in the first embodiment will be omitted hereinafter.

  Moreover, the holder 60 which concerns on 2nd embodiment is provided with the protrusion part 61, as shown in FIG. The protruding portion 61 is a portion protruding from the holder main body 41 toward the two sandwiched portions 44 and 45 in the Y direction. And the protrusion part 61 functions as a suppression part, and suppresses that the engagement location of the two clamping parts 44 and 45 shift | deviates in the direction where the holder main body 41 is located in a Y direction.

  The protruding portion 61 will be described in detail. As shown in FIG. 12, the protruding portion 61 is provided at a position aligned with the two sandwiched portions 44 and 45 in the Y direction. More specifically, as shown in FIG. 13, the protruding portion 61 is provided at a position aligned with the protruding portion 48 in the other sandwiched portion 45 in the Y direction. In the present embodiment, the protruding portion 61 is provided in a corner space formed between the raised wall 43 and the positioning portion 47.

  Then, when one of the sandwiched portions 44 rotates with respect to the other sandwiched portion 45 and reaches the position (holding position) where the engaging claw 46 engages with the protruding portion 48, it is adjacent to the protruding portion 61 in the Y direction. The engaging claw 46 is arranged at the position. At this position, the engaging claw 46 is engaged with the protrusion 48. In other words, the two sandwiched portions 44 and 45 are engaged at a position in front of the protruding portion 61 in the Y direction (a position opposite to the side where the holder main body 41 is positioned when viewed from the protruding portion 61).

  By providing the protrusion 61 as described above, it is possible to prevent the engagement portions of the two sandwiching portions 44 and 45 from shifting in the direction in which the holder main body 41 is positioned in the Y direction. More specifically, when one of the sandwiched portions 44 is rotated, it is rotated out of the normal path, and the engagement claw 46 is somewhat displaced from the original engagement position toward the holder main body 41. When the protrusion 48 is to be engaged, the engaging claw 46 comes into contact with the protruding portion 61 immediately before that. As a result, it is possible to suppress the engagement claw 46 from being engaged with the protrusion 48 in a state where the position of the engagement portion is shifted. As a result, the two sandwiched portions 44 and 45 are engaged at an appropriate engagement location, so that the optical fiber 30 is appropriately held by the holder 40.

  By the way, in 2nd embodiment, the part of the shape different from the engagement nail | claw 46 is provided in the front-end | tip part in which the engagement nail | claw 46 is formed among the one clamping parts 44. FIG. Such a portion is the adjacent portion 62 adjacent to the end portion closer to the holder main body 41 in the engaging claw 46 in the Y direction. As can be seen by comparing FIGS. 14 and 15, the adjacent portion 62 does not have a constricted shape at the midway position like the engaging claw 46, and has a substantially uniform thickness (strictly, in FIG. As shown, it is substantially trapezoidal in front view.

  That is, the adjacent portion 62 is no longer in the engaging claw 46 and cannot be engaged with the protrusion 48 formed in the other sandwiched portion 45. By providing such an adjoining portion 62, it is possible to more effectively suppress displacement of the engaging portions of the two sandwiched portions 44 and 45 in the Y direction. More specifically, when the engaging claw 46 tries to engage with the protruding portion 48 in a state where the engaging claw 46 is slightly displaced away from the original engaging portion in the direction away from the holder main body 41, the adjacent portion 62 protrudes immediately before that. It abuts on the part 48. However, since the adjacent portion 62 cannot be engaged with the protruding portion 48 as described above, the two sandwiched portions 44 and 45 cannot be engaged with each other as it is. As a result, the situation where the engagement portions of the two sandwiched portions 44 and 45 are shifted in the Y direction is suppressed, and as a result, the engagement claws 46 are engaged with the protrusions 48 at appropriate engagement portions. Become.

  In the second embodiment, as in the first embodiment, one sandwiched portion 44 (L-shaped sandwiched portion 44) has a convex portion 63 formed on a surface facing the held portion 31. However, as shown in FIGS. 14 and 15, the convex portion 63 according to the second embodiment has a shape different from that of the convex portion 50 according to the first embodiment, and specifically includes a wedge-shaped projection. That is, the convex part 63 which concerns on 2nd embodiment is provided with the slope 63a. The inclined surface 63a becomes lower as the distance from the holder main body 41 in the Y direction (in other words, the inclined surface 63a approaches a surface facing the held portion 31 included in one sandwiched portion 44).

  In a state where the two sandwiched portions 44 and 45 sandwich the held portion 31, the wedge-shaped convex portion 63 is in contact with the held portion 31 at the slope 63a. That is, while the two sandwiched portions 44 and 45 sandwich the held portion 31, the held portion 31 is pressed by the wedge-shaped convex portion 63. At this time, since the slope 63a is inclined in the above-described inclination direction, the force for pressing the held portion 31 increases toward the end of the held portion 31. As a result, the situation in which the held portion 31 in the state of being sandwiched between the two sandwiched portions 44 and 45 comes out can be significantly effectively suppressed.

  In addition, about the top part of the convex part 63, in order to avoid the damage of the to-be-held part 31, it is good to cut out in circular arc shape as shown in FIG. In addition, if the top part of the convex part 63 is notched circularly, the contact area of the convex part 63 and the to-be-held part 31 will increase. Thereby, it is possible to further effectively suppress the situation in which the held portion 31 in the state of being sandwiched between the two sandwiched portions 44 and 45 comes out.

1 Vehicle Door Lining 2 Base Trim 3 Panel Trim 4 Receiving Groove 10 This Device (Lighting Device)
10A Illuminating Device 10B Illuminating Device 20 Light Emitting Part 21 Base 21F Low Profile Part 21R High Profile Part 21a Bonding Protrusion 21b Convex Projection 22 Light Emitting Part Main Body 23 LED Substrate (Light Source)
23a Terminal 24 Condensing lens 24a Base part 30 Optical fiber (light guide)
31 Hold portion 32 Shrink band 40 Holder 41 Holder body 41a Slit 41b Rib 41c Bonding hole 42 Fixing portion 43 Raised wall (wall)
43h Opening 44 Clamping part 45 Clamping part 46 Engaging claw (engaging part)
46x Locking part 47 Positioning part 48 Protruding part (engaged part)
49 connection part 50 convex part 60 holder 61 protrusion part (suppression part)
62 Adjacent part 63 Convex part 63a Slope g Gap

Claims (10)

A light emitting part, a linearly extending light guide, and a holder for holding the light guide in a state where the light guide is opposed to the light emitting part,
The holder is
A holder body in which the light emitting unit is assembled;
Of the light guide, two sandwiching portions that engage in a state of sandwiching the held portion in a direction intersecting with an extending direction of the held portion held by the holder;
A restraining portion that is provided at a position aligned with the two sandwiched portions in the extending direction, and that prevents an engagement portion of the two sandwiched portions from shifting in a direction in which the holder main body is positioned in the extending direction. A lighting device characterized by the above.   The lighting device according to claim 1, wherein the suppressing portion is a protruding portion protruding from the holder main body toward the two sandwiched portions in the extending direction. One of the two sandwiched portions has a convex portion formed on a surface facing the held portion,
The lighting device according to claim 1, wherein the convex portion is in contact with the held portion in a state where the two sandwiched portions sandwich the held portion.   The lighting device according to claim 3, wherein the convex portion is a wedge-shaped protrusion, and has a slope closer to a surface facing the held portion as the distance from the holder main body increases in the extending direction.   The lighting device according to claim 3 or 4, wherein a top portion of the convex portion is cut out in an arc shape. One of the two sandwiched portions is
A claw-like engaging portion that engages with the other engaged portion;
Among the engaging portions in the extending direction, and having an adjacent portion adjacent to the end portion closer to the holder body,
The lighting device according to claim 1, wherein the adjacent portion has a shape that cannot be engaged with the engaged portion.   In a state where the two sandwiched portions are engaged, a gap is formed between one of the two sandwiched portions and the holder body, and a part of the held portion is exposed through the gap. The illumination device according to any one of claims 1 to 6, wherein The light emitting unit includes a light source and a condenser lens that collects light emitted from the light source,
The holder body has a wall in which an opening is formed,
The two sandwiched portions engage with each other in a state where the held portion is sandwiched so that an end surface of the held portion faces the condenser lens through the opening. The lighting device according to claim 1. The light guide is an optical fiber;
The lighting device according to claim 8, wherein a size of an end closer to the held portion of the opening is smaller than a size of a cross section of the optical fiber. One of the two sandwiched portions is connected to the other by a hinge and is rotatable with respect to the other,
The lighting device according to any one of claims 1 to 9, wherein the two sandwiched portions are engaged at a position in front of the suppressing portion in the extending direction.

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