WO2022118892A1 - 導光体固定構造及び車両用灯具 - Google Patents
導光体固定構造及び車両用灯具 Download PDFInfo
- Publication number
- WO2022118892A1 WO2022118892A1 PCT/JP2021/044120 JP2021044120W WO2022118892A1 WO 2022118892 A1 WO2022118892 A1 WO 2022118892A1 JP 2021044120 W JP2021044120 W JP 2021044120W WO 2022118892 A1 WO2022118892 A1 WO 2022118892A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light guide
- light
- guide body
- housing
- holding
- Prior art date
Links
- 239000000758 substrate Substances 0.000 claims description 15
- 238000005286 illumination Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000008094 contradictory effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/24—Light guides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/236—Light guides characterised by the shape of the light guide
- F21S43/237—Light guides characterised by the shape of the light guide rod-shaped
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/19—Attachment of light sources or lamp holders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/29—Attachment thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/19—Attachment of light sources or lamp holders
- F21S43/195—Details of lamp holders, terminals or connectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/242—Light guides characterised by the emission area
- F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/247—Light guides with a single light source being coupled into the light guide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/27—Attachment thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/50—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
Definitions
- the present invention relates to a light guide body fixed structure and a vehicle lamp.
- Patent Document 1 discloses a structure in which an extending portion extending outward from the outer edge of the light guide is provided, and the extending portion is fixed to a portion away from the light guide by fixing a screw or the like. ..
- the light guide has a light emitting portion on the front surface side and is provided with an extending portion extending from the upper surface side toward the back surface side, and the extending portion is provided at least on the light emitting portion.
- the holding portion which is continuously provided over the corresponding region and holds a part of the light guide body, has a structure having a groove portion into which the extending portion is inserted.
- Patent Document 1 The structure in which the extension portion extending from the light guide body is fixed by screw fixing as in Patent Document 1 can be sufficiently fixed, but the light leaking from the light guide body and directed toward the extension portion is compared with the surroundings. May produce a strong glowing spot.
- Patent Document 2 an extension portion is provided so as to extend to the back surface side of the light guide body in order to prevent spotlighting.
- the extension portion since the extension portion is inserted into the groove portion of the holding portion, the vehicle vibrates. It may not be possible to fix it sufficiently to such things.
- a fixing structure a lance structure for engaging and holding the inserted member with a claw is generally known, but it may not be sufficiently fixed against vibration of the vehicle or the like.
- the present invention has been made in view of the above, and an object of the present invention is to provide a light guide body fixing structure and a vehicle lamp that can prevent flashing and fix a light guide body.
- the light guide body fixing structure of one aspect of the present invention has a first holding portion that holds one end of a continuous light guide body and a second holding portion that holds the other end of the light guide body.
- a fixing portion having a holding portion, an engaging portion that mutually engages the first holding portion and the one end portion to restrict the movement of the one end portion to one of the first directions, and the first direction.
- An elastic part that generates an elastic force in one of the second directions intersecting with each other and abuts on the one end portion to maintain the engagement of the engaging portion, and the first direction and the engagement state of the engaging portion.
- a contact portion that brings the first holding portion and the one end portion into contact with each other in both of the third directions intersecting with the second direction, and the one end to the other in the first direction that abuts on the one end portion.
- the abutment portion that regulates the movement of the portion and the regulating portion that abuts on the elastic portion and restricts the movement of the elastic portion to the other in the second direction are provided.
- the light guide body may have a protrusion partially on the second side surface opposite to the first side surface that emits light, and the fixing portion may have a recess into which the protrusion is inserted.
- the second holding portion may be formed by a hole portion into which the other end portion of the light guide body is inserted and fitted.
- the abutting portion may be a substrate on which a light source that incidents light from the one end portion of the light guide body is mounted.
- the vehicle lamp according to one aspect of the present invention includes a light guide body in which one end and the other end are continuous, a light source in which light is incident from one end of the light guide body, the light guide body, and the light guide body.
- a fixing portion to which the light source is attached is provided, and the light guide body is fixed to the fixing portion by the above-mentioned light guide body fixing structure.
- the present invention it is possible to provide a light guide body fixing structure and a vehicle lamp that can prevent flashing and fix the light guide body.
- FIG. 1 is a side view showing an example of a vehicle equipped with a vehicle lamp according to an embodiment.
- FIG. 2 is a front view of a housing constituting the vehicle lamp of the embodiment.
- FIG. 3 is a schematic view of the front surface of the housing constituting the vehicle lamp of the embodiment.
- FIG. 4 is a perspective view of the housing as viewed from the front.
- FIG. 5 is a partially enlarged cross-sectional view of the housing.
- FIG. 6 is a front view of a light guide body constituting the vehicle lamp of the embodiment.
- FIG. 7 is a perspective view of the light guide body as viewed from behind.
- FIG. 8 is a partially enlarged perspective view of the light guide body.
- FIG. 1 is a side view showing an example of a vehicle equipped with a vehicle lamp according to an embodiment.
- FIG. 2 is a front view of a housing constituting the vehicle lamp of the embodiment.
- FIG. 3 is a schematic view of the front surface of the housing constituting the vehicle lamp of
- FIG. 9 is a partially enlarged cross-sectional view of the assembled state of the housing and the light guide body.
- FIG. 10 is a partially enlarged perspective view of the assembled state of the housing and the light guide body as viewed from the front.
- FIG. 11 is a partially enlarged perspective view of the assembled state of the housing and the light guide body as viewed from behind.
- FIG. 12 is a partially enlarged perspective view of the housing as viewed from the front.
- FIG. 13 is a partially enlarged perspective view of the assembled state of the housing and the light guide body as viewed from the front.
- FIG. 14 is a partially enlarged perspective view of the assembled state of the housing and the light guide body as viewed from the front.
- FIG. 15 is a front view of the light guide body.
- FIG. 1 is a side view showing an example of a vehicle 1 equipped with the vehicle lamp 100 of the embodiment.
- the vehicle 1 includes a vehicle body 2, a traveling device 3, and a vehicle lamp 100.
- the vehicle body 2 has a driver's cab on which the driver is boarded.
- the vehicle body 2 is supported by the traveling device 3.
- the traveling device 3 has a wheel on which the tire 4 is mounted, a steering device for changing the traveling direction of the vehicle 1, and a braking device for decelerating or stopping the traveling device 3.
- the vehicle 1 of the embodiment includes a door for getting on and off provided on the side portion of the vehicle body 2, and a back door provided on the rear portion of the vehicle body 2.
- Each of the boarding / alighting door and the back door is movably supported by the vehicle body 2 via a hinge mechanism.
- the vehicle 1 is placed on the ground G parallel to the horizontal plane, and the terms front, rear, top, bottom, left, and right are used with reference to the driver in the driver's cab.
- the positional relationship of each part will be described.
- the front-back, up-down, and left-right directions are the directions in which the vehicle lamp is mounted on the vehicle, and the directions when the traveling direction of the vehicle is viewed from the driver's seat, and the directions are from the driver's seat to the vehicle.
- the direction when looking at the traveling direction is shown.
- the left-right direction is also called the width direction.
- the front-rear direction is also referred to as a first direction, and the front side is one of the first directions and the rear side is the other of the first directions.
- the vertical direction is also referred to as a second direction intersecting (orthogonal) with the first direction, and the upper side is one of the second directions and the lower side is the other of the second directions.
- the left-right direction is also referred to as a third direction that intersects (orthogonally) the first direction and the second direction, and the right side is one of the third directions and the left side is the other of the third directions.
- FIG. 2 is a front view of a housing constituting the vehicle lamp of the embodiment.
- FIG. 3 is a schematic view of the front surface of the housing constituting the vehicle lamp of the embodiment.
- FIG. 4 is a perspective view of the housing as viewed from the front.
- FIG. 5 is a partially enlarged cross-sectional view of the housing.
- FIG. 6 is a front view of a light guide body constituting the vehicle lamp of the embodiment.
- FIG. 7 is a perspective view of the light guide body as viewed from behind.
- FIG. 8 is a partially enlarged perspective view of the light guide body.
- the vehicle lamp 100 is provided on the left side and the right side of the rear part of the vehicle 1, respectively.
- the vehicle lamp 100 is, for example, a rear lamp (rear combination lamp) provided at the rear of the vehicle body 2, that is, a lamp including a lamp having a plurality of functions arranged at the rear of the vehicle body 2.
- the vehicle lamp 100 is a lamp that combines three lamps: a clearance lamp, a turn signal lamp, a daytime running lamp, a tail lamp, and a stop lamp.
- the vehicle lamp 100 is not limited to this, and may be another type of lamp such as a head lamp, a daylight lamp, a clearance lamp, a turn signal lamp, a daytime running lamp, a tail lamp, and a stop lamp.
- the vehicle lighting equipment 100 of the embodiment is arranged so as to be separated from the back door of the vehicle body 2.
- the structure of the vehicle lamp 100 provided on the left side of the rear portion of the vehicle body 2 and the structure of the vehicle lamp 100 provided on the right side of the rear portion of the vehicle body 2 are symmetrical in the left-right direction and are substantially the same structure. ..
- the vehicle lamp 100 provided on the right side of the front portion of the vehicle body 2 will be mainly described, and the description of the vehicle lamp 100 provided on the left side of the front portion of the vehicle body 2 will be simplified or omitted.
- the vehicle lamp 100 includes a housing 10, a light guide body 20, and a light source 30.
- the housing 10 is a member arranged on the rear side of the vehicle lamp 100.
- the housing 10 is made of a material that does not transmit light.
- the housing 10 partitions a plurality of lamp chambers together with a front lamp lens (not shown in the figure).
- the plurality of lamp chambers are, for example, clearance lamps, turn signal lamps, daytime running lamps, tail lamps, stop lamps, and the like.
- the housing 10 is also referred to as a fixing portion for fixing the light guide body 20.
- the housing 10 has an upper portion 10A, a lower portion 10B, a middle portion 10C, a rear portion 10D, and an inner housing 80.
- the upper portion 10A is formed so as to extend in the left-right direction when viewed from the front.
- the lower portion 10B is formed so as to extend downward from the right end 10Aa of the upper portion 10A, curve to the left, and extend to the left.
- the lower portion 10B is formed by connecting the right end 10Aa to the right end 10Aa of the upper portion 10A.
- the central portion 10C is formed so as to connect between the upper portion 10A and the lower portion 10B.
- the rear portion 10D is formed so as to extend rearward from the mutual right ends 10Aa and 10Ba to which the upper portion 10A and the lower portion 10B are connected.
- the inner housing 80 is arranged between the upper portion 10A and the lower portion 10B of the housing 10 on the upper portion 10A side of the central portion 10C.
- a light source or the like is arranged inside the inner housing 80, and the inner housing 80 is partitioned as a light chamber different from the housing 10.
- the inner housing 80 serves as a lighting chamber for fog lamps, tail lamps, backup lamps, and the like.
- the upper portion 10A is formed with an upper groove 10E that opens to the front side and extends in the left-right direction.
- the upper groove 10E is formed so that the right end 10Ea is curved rearward toward the rear portion 10D at the right end 10Aa of the upper portion 10A.
- the upper groove 10E is formed so that the left end 10Eb is terminated at the left end 10Ab of the upper portion 10A.
- a hole portion 10Ac through which the left end 10Eb of the upper groove 10E communicates is formed at the left end 10Ab of the upper portion 10A.
- the hole portion 10Ac extends in the left-right direction, opens to the right toward the left end 10Eb of the upper groove 10E, and is formed by closing the left side.
- the hole portion 10Ac is also referred to as a second holding portion. Further, the upper groove 10E is in the middle of extending, and a recess 10Ec that is recessed toward the rear side and extends in the left-right direction is formed near the left end 10Eb.
- the lower portion 10B is formed with a lower groove 10F that opens to the front side and extends in the left-right direction.
- the lower groove 10F is formed so that the right end 10F is curved rearward toward the rear portion 10D at the right end 10Ba of the lower portion 10B.
- the lower groove 10F is formed so that the left end 10Fb is terminated at the left end 10Bb of the lower portion 10B.
- a hole portion 10Bc through which the left end 10Fb of the lower groove 10F communicates is formed at the left end 10Bb of the lower portion 10B.
- the hole portion 10Bc extends in the left-right direction, opens to the right toward the left end 10Fb of the lower groove 10F, and is formed by closing the left side.
- the hole portion 10Bc is also referred to as a second holding portion.
- the lower groove 10F is formed with a recess 10Fc that is recessed toward the rear side and extends in the left-right direction in the middle of the extension and at the left end 10Eb.
- the central portion 10C constitutes a wall plate on the rear side of the light chamber in which the housing 10 is partitioned.
- a tail lamp, a stop lamp, a turn signal lamp, and the like are arranged in the central portion 10C.
- a hole 90 in which a light source is arranged is formed in the central portion 10C.
- a reflector 92 or the like that reflects the light of the light source arranged in the central portion 10C is arranged.
- the rear portion 10D is formed with a tubular portion 10G having a hole 10Ga penetrating in the front-rear direction.
- the tubular portion 10G is also referred to as a first holding portion.
- the tubular portion 10G communicates with the right end 10Ea of the upper groove 10E formed in the upper portion 10A and the right end 10F of the lower groove 10F formed in the lower portion 10B on the front side of the hole 10Ga.
- the tubular portion 10G has inner wall surfaces on the top, bottom, left, and right in the hole 10Ga. As shown in FIG.
- the tubular portion 10G is a rear end portion and has a locking surface 10Gba facing the rear side by denting in a stepwise manner toward the upper side on the inner wall surface on the upper side of the hole 10Ga.
- a joint recess 10 Gb is formed.
- the tubular portion 10G is a rear end portion, and a plate piece-shaped elastic portion 10Gc that can extend diagonally to the rear side and the upper side and bend in the vertical direction is formed at a position below the engaging recess 10Gb.
- the tubular portion 10G is formed with a protruding portion 10Gd protruding from each inner wall surface on the right side and the left side.
- the protruding portions 10Gd are provided so as to face each other in the left-right direction.
- the protruding portion 10Gd is also referred to as a contact portion.
- the rear portion 10D is formed with a plurality of pins 10Da extending in a rod shape toward the rear side.
- the light guide body 20 is also referred to as a light guide, and has an upper light guide unit 20A, a lower light guide unit 20B, and a rear light guide unit 20D, as shown in FIGS. 6 and 7.
- the upper light guide portion 20A is formed so as to extend in the left-right direction when viewed from the front.
- the lower light guide portion 20B is formed so as to extend downward from the right end 20Aa of the upper light guide portion 20A, curved to the left side, and extend to the left side when viewed from the front.
- the lower light guide portion 20B is formed by connecting the right end 20Ba to the right end 20Aa of the upper light guide portion 20A.
- the rear light guide portion 20D is formed so as to extend rearward from the mutual right ends 20Aa and 20Ba to which the upper light guide portion 20A and the lower light guide portion 20B are connected.
- the upper light guide portion 20A is formed so as to extend in a rod shape in the left-right direction.
- the upper light guide portion 20A is formed so that the right end 20Aa is curved rearward toward the rear light guide portion 20D.
- the upper light guide portion 20A is formed so that the left end 20Ab can be inserted into the hole portion 10Ac formed in the left end 10Ab of the upper portion 10A.
- the left end 20Ab and the hole portion 10Ac of the upper light guide portion 20A are formed so that the outer shape of the left end 20Ab of the upper light guide portion 20A and the inner shape of the hole portion 10Ac are equally formed so as to be fitted to each other by insertion.
- the left end 20Ab of the upper light guide portion 20A is also referred to as the other end portion of the light guide body 20. Further, the upper light guide portion 20A is in the middle of extending, and a protrusion 20Ac protruding toward the rear side is formed near the left end 20Ab. The protrusion 20Ac is partially formed in the middle of extending the upper light guide portion 20A. The protrusion 20Ac is formed so as to be insertable into the recess 10Ec formed in the upper groove 10E of the upper portion 10A of the housing 10.
- the protrusion 20Ac and the recess 10Ec of the upper light guide portion 20A are formed so that the outer shape of the protrusion 20A and the inner shape of the recess 10Ec are equally formed so that they can be fitted to each other by insertion.
- the light guide portion 20A has a prism portion 20Ae formed on the rear surface 20Ad of the light guide portion 20A.
- the prism portion 20Ae reflects the light guided to the inside of the upper light guide portion 20A toward the front surface 20Af of the upper light guide portion 20A.
- the front surface 20Af of the upper light guide unit 20A transmits the reflected light toward the front side and emits light.
- the front surface 20Af of the upper light guide portion 20A is also referred to as a first side surface, and the rear surface 20Ad on which the prism portion 20Ae is formed contradicting the front surface 20Af is also referred to as a second side surface.
- the lower light guide portion 20B is formed so as to extend in a rod shape in the left-right direction.
- the lower light guide portion 20B is formed so that the right end 20Ba is curved rearward toward the rear light guide portion 20D.
- the lower light guide portion 20B is formed so that the left end 20Bb can be inserted into the hole portion 10Bc formed in the left end 10Bb of the lower portion 10B.
- the left end 20Bb and the hole portion 10Bc of the lower light guide portion 20B are formed so that the outer shape of the left end 20Bb of the lower light guide portion 20B and the inner shape of the hole portion 10Bc are formed so as to be fitted to each other by insertion.
- the left end 20Bb of the lower light guide portion 20B is also referred to as the other end of the light guide body 20.
- the lower light guide portion 20B is formed with protrusions 20Bc protruding toward the rear side during its extension and at the left end 20Bb.
- the protrusion 20Bc is partially formed in the middle of extending the lower light guide portion 20B.
- the protrusion 20Bc is formed so as to be insertable into the recess 10Fc formed in the lower groove 10F of the lower portion 10B of the housing 10.
- the protrusion 20Bc and the recess 10Fc of the lower light guide portion 20B are formed so that the outer shape of the protrusion 20Bc and the inner shape of the recess 10Fc are equally formed so that the protrusion 20Bc and the recess 10Fc are fitted to each other by insertion.
- a prism portion 20Be is formed on the rear surface 20Bd of the lower light guide portion 20B.
- the prism portion 20Be reflects the light guided to the inside of the lower light guide portion 20B toward the front surface 20Bf of the lower light guide portion 20B.
- the front surface 20Bf of the lower light guide unit 20B transmits the reflected light toward the front side and emits light.
- the front surface 20Bf of the lower light guide portion 20B is also referred to as a first side surface
- the rear surface 20Bd on which the prism portion 20Be is formed contradicting the front surface 20Bf is also referred to as a second side surface.
- the rear light guide portion 20D is formed so as to extend in a rod shape in the front-rear direction.
- the rear light guide unit 20D communicates with the right end 20Aa of the upper light guide unit 20A and the right end 20Ba of the lower light guide unit 20B on the front end side thereof.
- the rear light guide portion 20D has outer peripheral surfaces on the outer periphery thereof in the vertical and horizontal directions.
- the rear light guide portion 20D is an engagement having a locking surface 20Daa which is a rear end portion and faces the front side by projecting stepwise toward the upper side on the upper outer peripheral surface.
- the convex portion 20Da is formed.
- the rear light guide portion 20D is a rear end portion, and a protrusion 20Db projecting to the rear side of the engaging convex portion 20Da is formed. After this, the light guide portion 20D is inserted from the rear end into the tubular portion 10G in the housing 10.
- the rear light guide unit 20D is also referred to as one end of the light guide body 20.
- the light source 30 is mounted on the plate surface 40A of the substrate 40.
- a connector 50 to which the wiring 50A for energizing the light source 30 is connected is attached to the substrate 40.
- the light source 30 irradiates the rear surface 20Dc of the rear light guide portion 20D in the light guide body 20 with light. Therefore, the light guide body 20 is arranged with the rear surface 20Dc of the rear light guide portion 20D facing the light source 30.
- the rear surface 20Dc of the rear light guide unit 20D is also referred to as an incident surface.
- the light guide body 20 abuts and abuts the protrusion 20Db on the plate surface 40A of the substrate 40.
- the protrusion 20Db abuts on the plate surface 40A of the substrate 40, the distance between the rear surface 20Dc of the rear light guide portion 20D and the light source 30 is optimized.
- the substrate 40 is also referred to as a bump portion. Further, the substrate 40 is formed with a plurality of through holes 40B penetrating the plate surface 40A.
- the pin 10Da formed in the tubular portion 10G of the housing 10 is inserted into the through hole 40B. By inserting the pin 10Da into the through hole 40B, the substrate 40 is positioned on the tubular portion 10G of the housing 10 (see FIG. 9).
- FIG. 9 is a partially enlarged cross-sectional view of the assembled state of the housing and the light guide body.
- FIG. 10 is a partially enlarged perspective view of the assembled state of the housing and the light guide body as viewed from the front.
- FIG. 11 is a partially enlarged perspective view of the assembled state of the housing and the light guide body as viewed from behind.
- FIG. 12 is a partially enlarged perspective view of the housing as viewed from the front.
- FIG. 13 is a partially enlarged perspective view of the assembled state of the housing and the light guide body as viewed from the front.
- FIG. 14 is a partially enlarged perspective view of the assembled state of the housing and the light guide body as viewed from the front.
- the housing 10, the light guide body 20, and the light source 30 are assembled.
- the rear surface 20Dc (incident surface) of the rear light guide 20D in the light guide 20 is directed to the rear side, and the hole in the cylinder 10G in the housing 10 is formed. Insert into 10Ga from the front side.
- the engaging convex portion 20Da of the rear light guide portion 20D eventually fits into the engaging concave portion 10Gb of the hole 10Ga, and the locking surface 20Da of the engaging convex portion 20Da.
- the locking surface 10Gba of the engaging recess 10Gb face each other in the front-rear direction.
- the light guide body 20 is restricted from moving to the front side in the front-rear direction by the locking surfaces 10Gba and 20Daa with respect to the housing 10.
- the elastic portion 10Gc of the tubular portion 10G comes into contact with the lower outer peripheral surface of the rear light guide portion 20D, and the elastic portion 10 Gc bends downward to generate an elastic force that tends to return to the upper side, and this elastic force pushes the rear light guide portion 20D upward.
- the light guide body 20 is restricted from moving downward in the vertical direction with respect to the housing 10, and the engaging state in which the engaging convex portion 20Da is fitted in the engaging concave portion 10Gb is maintained. Restriction of forward movement in the front-rear direction by the stop surfaces 10 Gba and 20 Daa is maintained.
- each of the tubular portions 10G is formed on the left and right outer peripheral surfaces of the rear light guide portion 20D.
- the protrusions 10Gd come into contact with each other. That is, the tubular portion 10G and the rear light guide portion 20D are brought into contact with each other in the left-right direction via each protruding portion 10Gd. As a result, the light guide body 20 is restricted from moving in both the left-right direction with respect to the housing 10.
- the substrate 40 to which the light source 30 is attached is attached to the housing 10 after the light guide body 20 is attached to the housing 10 or before the light guide body 20 is attached to the housing 10.
- the substrate 40 is positioned from the rear side to the rear portion 10D so that the pin 10Da of the rear portion 10D in the housing 10 is inserted into the through hole 40B, and is fixed to the rear portion 10D by fixing a screw or the like.
- the engaging convex portion 20Da of the rear light guide portion 20D fits into the engaging concave portion 10Gb of the hole 10Ga
- the protruding portion 20Db of the rear light guide portion 20D abuts against the plate surface 40A of the substrate 40.
- the light guide body 20 is restricted from moving to the rear side in the front-rear direction with respect to the housing 10, and the distance between the rear surface 20Dc of the rear light guide portion 20D and the light source 30 is optimized.
- the second housing 10H is formed with a restricting portion 10Ha that abuts on the elastic portion 10Gc from the lower side in the vertical direction while being fixed to the housing 10.
- the restricting portion 10Ha is formed as a rod-shaped member having an L-shaped cross section extending to the left side from the second housing 10H to ensure rigidity. Therefore, the elastic portion 10Gc of the tubular portion 10G is restricted from returning to the lower side by the regulating portion 10Ha.
- the light guide body 20 maintains the downward movement restriction by the elastic portion 10Gc, so that the engaging state in which the engaging convex portion 20Da is fitted in the engaging concave portion 10Gb is maintained, and the locking surface is maintained.
- the regulation of forward movement in the front-back direction by 10 Gba and 20 Daa is maintained.
- the lower light guide portion 20B of the light guide body 20 is bent as shown in FIGS. 12 and 13, and the left end 20Bb is bent. Is inserted into the hole 10Bc formed in the left end 10Bb of the lower portion 10B of the housing 10 and fitted. Then, when the left end 20Bb of the lower light guide portion 20B fits into the hole portion 10Bc of the lower portion 10B, the lower light guide portion 20B fits into the lower groove 10F of the lower portion 10B.
- the protrusion 20Bc of the lower light guide portion 20B is inserted into the recess 10Ec formed in the lower groove 10F of the lower light guide portion 20B, as shown in FIG.
- the upper light guide portion 20A of the light guide body 20 is bent, and the left end 20Ab is formed. It is inserted into and fitted into the hole 10Ac formed in the left end 10Ab of the upper portion 10A of the housing 10.
- the upper light guide portion 20A fits into the upper groove 10E of the upper portion 10A. Further, when the upper light guide portion 20A fits into the upper groove 10E, the protrusion 20Ac of the upper light guide portion 20A is inserted into the recess 10Ec formed in the upper groove 10E of the upper 10A.
- the housing 10, the light guide body 20, and the light source 30 are assembled to form the vehicle lamp 100.
- the light of the light source 30 is incident on the rear surface 20Dc of the rear light guide portion 20D of the light guide body 20, and is branched and guided to the upper light guide portion 20A and the lower light guide portion 20B.
- the upper light guide unit 20A the light guided to the inside of the upper light guide unit 20A is reflected by the prism portion 20Ae toward the front surface 20Af of the upper light guide unit 20A, and the front surface 20Af emits light.
- the light guided to the inside of the lower light guide unit 20B is reflected by the prism portion 20B toward the front surface 20Bf of the lower light guide unit 20B, and the front surface 20Bf emits light.
- the light guide body 20 has been described as having a configuration in which the upper light guide unit 20A and the lower light guide unit 20B extend from the rear light guide unit 20D in two forks.
- a configuration in which only the light unit 20A extends or a configuration in which only the lower light guide unit 20B extends from the rear light guide unit 20D may be used.
- the housing 10 includes an upper portion 10A having an upper groove 10E into which the upper light guide portion 20A fits.
- the housing 10 includes a lower portion 10B having a lower groove 10F into which the lower light guide portion 20B fits.
- the light guide body fixing structure of the embodiment has a first holding portion (cylinder portion 10G) for holding one end portion (rear light guide portion 20D) of the continuous light guide body 20 and the other end of the light guide body 20.
- the engagement portion (engagement recess 10Gb and An elastic portion 10Gc that generates an elastic force in one of the engagement convex portion 20Da) and the second direction (upper side in the vertical direction) intersecting with the first direction and abuts on one end portion to maintain the engagement of the engagement portion.
- the contact portion protruding portion 10Gd that brings the first holding portion and one end portion into contact with each other in both the first direction and the third direction (left-right direction) intersecting with the first direction and the second direction in the engaged state of the engaging portion.
- the light guide body fixing structure of the embodiment restricts the movement of the light guide body 20 from front to back, up, down, left and right without using screw fixing such as screws, and holds one end and the other end.
- the light guide body fixing structure of the embodiment one end portion and the other end portion of the light guide body 20 are held, and screws such as screws are fixed in the middle of the light guide body 20, one end portion, and the other end portion. Since it can be fixed without using it, it is possible to prevent shining and to fix the light guide body 20 to the housing 10.
- the light guide body 20 contradicts the first side surface (front surface 20Af of the upper light guide portion 20A and / or front surface 20Bf of the lower light guide portion 20B) that emits light.
- the second side surface partially has protrusions 20Ac, 20Bc, and the housing 10 has recesses 10Ec, 10Fc into which the protrusions are inserted.
- the light guide body 20 is held in the housing 10 by inserting the protrusions 20Ac and 20Bc of the light guide body 20 into the recesses 10Ec and 10Fc of the housing 10. Since the protrusions 20Ac and 20Bc are provided on the second side surface opposite to the first side surface where the light guide body 20 emits light, the light guide body 20 can be held in the housing 10 while suppressing the spot light. As a result, according to the light guide body fixing structure of the embodiment, it is possible to prevent the spotlight and fix the light guide body 20 to the housing 10.
- the protrusions 20Ac and 20Bc are preferably formed in a linear portion between one end and the other end of the light guide body 20 or a portion close to the linear shape. If the protrusions 20Ac and 20Bc are provided on the curved portion, the protrusions 20Ac and 20Bc may affect the reflection by the prism portions 20Ae and 20Be formed on the second surface of the light guide body 20, and the light guide body of the embodiment may be affected. The fixed structure can prevent this.
- FIG. 15 is a front view of the light guide body.
- the light guide body 120 shown in FIG. 15 is a member similar to the light guide body 20.
- the light guide body 120 has an upper light guide unit 120A, a lower light guide unit 120B, and a rear light guide unit 120D.
- the upper light guide unit 120A and the lower light guide unit 120B have the same configurations and functions as the upper light guide unit 20A and the lower light guide unit 20B.
- the rear light guide unit 120D extends rearward from the right end of each other to which the upper light guide unit 120A and the lower light guide unit 120B are connected. As described above, in the rear light guide unit 120D, the light source is arranged at a position facing the end surface 120Da.
- the light output from the light source is incident from the end face 120Da, the incident light passes through the rear light guide unit 120D, and is branched into the upper light guide unit 120A and the lower light guide unit 120B.
- the light source As a result, in the light guide body 120, the light incident from one end surface 120Da is guided to both the upper light guide unit 120A and the lower light guide unit 120B, and the light emitted from the upper light guide unit 120A and the lower light guide unit 120B. Ejected from the surface.
- the upper light guides 20A and 120A and the lower light guides 20B and 120B extend from the rear light guides 20D and 120D in a bifurcated manner from one incident surface.
- the light guide body can be suitably fixed.
- the second holding portion is formed by the hole portions 10Ac and 10Bc into which the other end portion of the light guide body 20 is inserted and fitted.
- the other end portion of the light guide body 20 is inserted into the holes 10Ac and 10Bc and fitted to the other end portion without using screw fixing such as a screw.
- the light guide body 20 can be fixed to the housing 10 while preventing the light from shining.
- the abutting portion is a substrate 40 on which a light source 30 that incidents light from one end of the light guide body 20 is mounted.
- the light guide body fixing structure of the embodiment since the substrate 40 constitutes the abutting portion, the light guide body 20 can be fixed to the housing 10 without increasing the number of parts.
- the vehicle lamp 100 of the embodiment includes a light guide body 20 in which one end portion and the other end portion are continuous, a light source 30 in which light is incident from one end portion of the light guide body 20, a light guide body 20, and a light guide body 20.
- a housing 10 to which the light source 30 is attached is provided, and the light guide body 20 is fixed to the housing 10 by the above-mentioned light guide body fixing structure.
- the vehicle lamp 100 of the embodiment can prevent the light from shining and fix the light guide 20.
- 10 Housing (fixing part), 10Ac, 10Bc ... Hole part (second holding part), 10Ec, 10Fc ... Recessed part, 10G ... Cylinder part (first holding part), 10Gb ... Engaging recess (engaging part), 10Gc ... Elastic part, 10Gd ... Projection part (contact part), 10Ha ... Regulation part, 20,120 ... Light source, 20Ab, 20Bb ... Left end (other end), 20Ac, 20Bc ... Projection, 20Ad, 20Bd ... Rear surface (No. 1) Two sides), 20Af, 20Bf ... front surface (first side surface), 20D ... rear light guide portion (one end portion), 20Da ... engaging convex portion (engaging portion), 30 ... light source, 40 ... substrate (butting portion) , 100 ... Vehicle lighting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Planar Illumination Modules (AREA)
Abstract
Description
Claims (5)
- 連続する導光体の一端部を保持する第一保持部、及び前記導光体の他端部を保持する第二保持部を有する固定部と、
前記第一保持部と前記一端部とを相互に係合して第一方向の一方への前記一端部の移動を規制する係合部と、
前記第一方向に対して交差する第二方向の一方に弾性力を生じ前記一端部に当接して前記係合部の係合を維持する弾性部と、
前記係合部の係合状態で前記第一方向及び前記第二方向に対して交差する第三方向の双方において前記第一保持部と前記一端部とを互いに接触させる接触部と、
前記一端部に当接して前記第一方向の他方への前記一端部の移動を規制する突当部と、
前記弾性部に当接して前記第二方向の他方への前記弾性部の移動を規制する規制部と、
を備える、導光体固定構造。 - 前記導光体は、光を発光する第一側面とは相反する第二側面に部分的に突起を有し、前記固定部は、前記突起が挿入される凹部を有する、請求項1に記載の導光体固定構造。
- 前記第二保持部は、前記導光体の前記他端部が挿入されて嵌合する穴部により形成されている、請求項1に記載の導光体固定構造。
- 前記突当部は、前記導光体の前記一端部から光を入射する光源が実装された基板である、請求項1に記載の導光体固定構造。
- 一端部と他端部との間が連続する導光体と、
前記導光体の一端部から光を入射する光源と、
前記導光体および前記光源が取り付けられる固定部と、
を備え、
前記固定部に対して前記導光体が、請求項1に記載の導光体固定構造により固定される、車両用灯具。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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EP21900643.4A EP4257876A4 (en) | 2020-12-01 | 2021-12-01 | FIXING STRUCTURE OF LIGHT GUIDE BODY AND VEHICLE LAMP |
US18/255,328 US20240093849A1 (en) | 2020-12-01 | 2021-12-01 | Light-guiding body fixation structure and vehicle lamp |
CN202180080654.8A CN116529528A (zh) | 2020-12-01 | 2021-12-01 | 导光体固定构造以及车辆用灯具 |
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JP2020-199743 | 2020-12-01 | ||
JP2020199743 | 2020-12-01 | ||
JP2021194721A JP2022087838A (ja) | 2020-12-01 | 2021-11-30 | 導光体固定構造及び車両用灯具 |
JP2021-194721 | 2021-11-30 |
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FR3002794B1 (fr) * | 2013-03-04 | 2015-03-20 | Valeo Vision Belgique | Dispositif d'eclairage et/ou de signalisation pour vehicule automobile,comportant un guide de lumiere |
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- 2021-12-01 EP EP21900643.4A patent/EP4257876A4/en active Pending
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US20240093849A1 (en) | 2024-03-21 |
EP4257876A1 (en) | 2023-10-11 |
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