WO2024004540A1 - Road surface depicting device for vehicle - Google Patents

Road surface depicting device for vehicle Download PDF

Info

Publication number
WO2024004540A1
WO2024004540A1 PCT/JP2023/020869 JP2023020869W WO2024004540A1 WO 2024004540 A1 WO2024004540 A1 WO 2024004540A1 JP 2023020869 W JP2023020869 W JP 2023020869W WO 2024004540 A1 WO2024004540 A1 WO 2024004540A1
Authority
WO
WIPO (PCT)
Prior art keywords
light source
source unit
road surface
drawing device
counterweight
Prior art date
Application number
PCT/JP2023/020869
Other languages
French (fr)
Japanese (ja)
Inventor
貴丈 戸塚
裕一 綿野
雄太 丸山
範彦 小林
Original Assignee
株式会社小糸製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社小糸製作所 filed Critical 株式会社小糸製作所
Publication of WO2024004540A1 publication Critical patent/WO2024004540A1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
    • B60Q1/068—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
    • B60Q1/076—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle by electrical means including means to transmit the movements, e.g. shafts or joints

Definitions

  • the present disclosure relates to a road surface drawing device for a vehicle.
  • Patent Document 1 discloses a vehicular lamp having a function of drawing a light pattern on a road surface, which controls the projection direction of the light pattern by controlling at least one of a light source section and a projection optical system.
  • a vehicular lamp that can be used is disclosed.
  • the vehicle lamp described in Patent Document 1 includes an aiming mechanism that controls the projection direction of the light pattern by driving a motor to tilt the light source board.
  • a road surface drawing device for a vehicle that has an aiming mechanism different from that of the vehicle lamp described in Patent Document 1.
  • the present disclosure has been made to solve the above problems, and its purpose is to provide a road surface drawing device for a vehicle that has a novel aiming mechanism.
  • a road surface drawing device for a vehicle includes: a light source unit, a shaft portion located above the center of gravity of the light source unit and supporting the light source unit so as to be swingable about the shaft center; A locking mechanism is provided that switches between an unlocked state in which the light source unit is allowed to swing and a locked state in which the light source unit is not allowed to swing.
  • FIG. 1 is a diagram showing the configuration of a road surface drawing device for a vehicle according to an embodiment of the present disclosure.
  • FIG. 2 is a sectional view taken along the line II-II shown in FIG.
  • FIG. 3 is a diagram for explaining a state in which the light source unit shown in FIG. 2 is swingable.
  • FIG. 4 is a diagram illustrating a configuration of a road surface drawing device for a vehicle according to a modification of the embodiment of the present disclosure.
  • FIG. 5 is a cross-sectional view taken along the line VV shown in FIG.
  • FIG. 1 is a diagram showing the configuration of a road surface drawing device 101 for a vehicle according to an embodiment of the present disclosure.
  • the vehicle road drawing device 101 includes a light source unit 1 that emits light toward the road surface, a housing 2 that houses the light source unit 1, and an outer housing provided on the light irradiation side of the light source unit 1. It includes a lens 6, a support section 7 provided on the housing 2, and a shaft section 8 attached to the support section 7.
  • the vehicle road surface drawing device 101 is, for example, a rear combination lamp, a backup lamp, or a high-mounted lamp that is mounted on the rear of the vehicle and integrates a plurality of lamps such as a direction indicator lamp, a brake lamp, and a tail lamp. It may be placed in the same light body as the stop lamp, or may be placed separately. However, the vehicle road surface drawing device 101 is, for example, a plurality of lighting devices such as a lighting device that is mounted on the front of the vehicle and emits a low beam light distribution pattern or a high beam light distribution pattern, DRL (Daytime Running Lamps), turn signal lamps, etc. may be placed in the same lamp body as the integrated headlamp, or may be placed separately.
  • DRL Daytime Running Lamps
  • the vehicle road surface drawing device 101 may be configured to emit light in conjunction with a direction indicator lamp and a backup lamp.
  • the vehicle road surface drawing device 101 is configured to emit light in conjunction with other lighting devices such as brake lamps, tail lamps, lighting devices that emit low beam light distribution patterns and high beam light distribution patterns, DRLs, and other communication use lighting devices. It may be configured.
  • the vehicle road surface drawing device 101 may be configured to emit light independently.
  • the light source unit 1 includes a light source 10, an optical component 11, a shade 3, a light source board 4, and a heat sink 5.
  • the light source 10 is arranged so that its light emitting surface faces the optical component 11.
  • the optical component 11 is a lens, a reflector, or the like, and projects the light emitted from the light source 10.
  • the optical component 11 includes a main body portion 11a, such as a monofocus lens, and a plurality of leg portions 11b.
  • the leg portion 11b extends from the entrance surface side of the main body portion 11a toward the front side, and is connected to the heat sink 5.
  • the leg portion 11b is made of the same material as the main body portion 11a, for example, and is formed integrally with the main body portion 11a.
  • the shade 3 blocks part of the light that enters the optical component 11 from the light source 10.
  • Light emitted from the light source 10 passes through an opening 3a provided in the shade 3 and enters the optical component 11.
  • the light source board 4 supports the light source 10.
  • the heat sink 5 supports the light source board 4 and radiates heat generated from the light source 10.
  • the support portion 7 extends from the housing 2 toward the rear side, and partially overlaps with the heat sink 5 when viewed from the side.
  • An opening through which the shaft portion 8 passes is formed at a position above the center of gravity G1 of the light source unit 1 in a portion of the support portion 7 that overlaps with the heat sink 5.
  • FIG. 2 is a sectional view taken along the line II-II shown in FIG. 1.
  • FIG. 2 shows a cross section of the heat sink 5, support section 7, and shaft section 8 shown in FIG. 1, viewed from the front side.
  • FIG. 2 other components are not shown in order to make it easier to understand the positional relationship between the heat sink 5, the support part 7, and the shaft part 8. Assume that the direction of arrow R shown in FIG. 2 is "rightward" and the direction of arrow L is "leftward.”
  • the support section 7 includes a first support section 7a provided on the right side of the heat sink 5 and a second support section 7b provided on the left side of the heat sink 5.
  • the shaft portion 8 extends along the horizontal direction when the vehicle road drawing device 101 is mounted on a vehicle.
  • the shaft portion 8 passes through the first support portion 7a, the heat sink 5, and the second support portion 7b.
  • the shaft portion 8 supports the light source unit 1 including the heat sink 5 so as to be swingable about the shaft center. That is, the light source unit 1 is supported by the shaft portion 8 and is swingable about the shaft portion 8 in the directions of arrows A11 and A12 shown in FIG.
  • the vehicle road drawing device 101 further includes a lock mechanism 20 that switches between an unlocked state in which rocking of the light source unit 1 is permitted and a locked state in which rocking of the light source unit 1 is not permitted.
  • the locking mechanism 20 includes an adjuster portion 23 that passes through the through hole 12 formed in the housing 2, and a locking portion 24 attached to the adjuster portion 23.
  • the front end of the adjuster portion 23 is exposed to the outside of the housing 2, and the other portion is provided inside the housing 2.
  • a waterproof ring 25 is provided between the adjuster portion 23 and the through hole 12 of the housing 2. Further, the adjuster portion 23 is rotatable about a rotation axis Q extending in the front-rear direction, as shown by arrows B11 and B12.
  • a threaded groove is provided in the adjuster portion 23 and the through hole 12 of the housing 2, and the adjuster portion 23 is screwed into the through hole 12.
  • a large contact area is ensured between the outer peripheral surface of the adjuster part 23 and the inner peripheral surface of the through hole 12, and the adjuster part 23 can maintain its posture at any rotation angle.
  • a structure may be adopted in which when the adjuster part 23 is pushed into the housing 2, the adjuster part 23 can maintain its posture.
  • the locking part 24 is, for example, a member attached to cover a part of the outer periphery of the adjuster part 23, and has an elliptical shape in a cross-sectional view along the vertical direction, as shown in FIG. In FIG. 2, the locking portion 24 is in contact with the heat sink 5.
  • the light source unit 1 is swingably supported by the shaft portion 8, but as shown in FIG. Since the relative posture is maintained, the light source unit 1 is in a state where it cannot swing. Such a state will be referred to as a "locked state" hereinafter.
  • FIG. 3 is a diagram for explaining a state in which the light source unit 1 shown in FIG. 2 is swingable. Similar to FIG. 2, FIG. 3 shows a cross-sectional view taken along the line II--II shown in FIG. 1, and does not show components other than the heat sink 5, the support part 7, and the shaft part 8.
  • the direction (predetermined direction) of the optical axis P1 of the light source 10 when the light pattern is most clearly drawn on the road surface is the horizontal direction.
  • the light source unit 1 is provided so that the optical axis P1 of the light source 10 is along the horizontal direction when the vehicle road drawing device 101 is attached to the vehicle. That is, the light source unit 1 is provided so that the optical axis P1 of the light source 10 is along the horizontal direction when the light source unit 1 is in the unlocked state and the swinging due to its own weight has stopped.
  • the entire vehicle road surface drawing device 101 may be tilted and the optical axis P1 may deviate from the horizontal direction due to factors such as vehicle vibration.
  • the operator can use the weight of the light source unit 1 to return the optical axis P1 to the horizontal direction by performing an aiming operation.
  • the operator rotates the adjuster section 23 to switch the state of the light source unit 1 from the locked state to the unlocked state.
  • the light source unit 1 When the light source unit 1 is in the unlocked state, it becomes swingable around the shaft portion 8.
  • the light source unit 1 will swing around the shaft 8 due to its own weight. do. Then, the light source unit 1 gradually reduces the swing range until the center of gravity G1 is located on the straight line L1, and then stops with the center of gravity G1 located on the straight line L1.
  • a state will also be referred to as a "swinging stop state.”
  • the light source unit 1 may continue to maintain the position of the center of gravity G1 without swinging. Or, after a slight rocking, the rocking stops.
  • the operator After confirming that the light source unit 1 is in the non-swinging state in the unlocked state, the operator switches the state of the light source unit 1 from the unlocked state to the locked state by rotating the adjuster section 23 again. . Thereby, the vertical projection direction of the light pattern from the vehicle road drawing device 101 can be automatically adjusted.
  • the above predetermined direction is not limited to the horizontal direction.
  • an operator may direct the optical axis P1 to any direction such as above or below the horizontal direction while the center of gravity G1 is located on the straight line L1.
  • the light source 10, the optical component 11, and the shade 3 of the light source unit 1 may be arranged.
  • the direction of the optical axis P1 can be changed to any direction by performing the above-mentioned aiming work. can be returned to.
  • the vehicle road surface drawing device 101 may be configured to include, in addition to the shaft portion 8 extending along the horizontal direction, another shaft portion extending along the vertical direction or another direction.
  • the vehicle road surface drawing device 101 is configured to include, in addition to the shaft portion 8, a second shaft portion extending along the vertical direction.
  • the heat sink 5 can not only swing vertically around the shaft 8 but also swing horizontally around the second shaft, so that the heat sink 5 can emit light in the vertical and horizontal directions.
  • the projection direction of the pattern can be adjusted.
  • the vehicle road drawing device 101 includes the light source unit 1 and the shaft portion 8 that is located above the center of gravity G1 of the light source unit 1 and supports the light source unit 1 so as to be swingable about the shaft center. and a lock mechanism 20 that switches between an unlocked state in which the light source unit 1 is allowed to swing and a locked state in which the light source unit 1 is not allowed to swing.
  • a lock mechanism 20 that switches between an unlocked state in which the light source unit 1 is allowed to swing and a locked state in which the light source unit 1 is not allowed to swing.
  • the light source unit 1 is in an unlocked state, and the center of gravity G1 of the light source unit 1 is located on the straight line L1 extending in the vertical direction from the shaft portion 8, so that the light source unit 1 is swayed.
  • the optical axis P1 of the light source unit 1 is provided along a predetermined direction.
  • FIG. 4 is a diagram showing the configuration of a vehicle road surface drawing device 102 according to a modification of the embodiment of the present disclosure.
  • FIG. 5 is a cross-sectional view taken along the line VV shown in FIG.
  • the vehicle road surface drawing device 102 includes, in addition to each component included in the vehicle road surface drawing device 101, a rotary damper 14, a first extension portion 15, and a second extension portion. It includes a mounting portion 16, a counterweight attachment portion 17, a counterweight 18, and a position adjustment mechanism 19.
  • the other configuration of the vehicle road surface drawing device 102 is the same as that of the vehicle road surface drawing device 101.
  • the first extending portion 15 is, for example, a plate-shaped member that extends downward from the rear end of the bottom surface of the heat sink 5, and extends in the left-right direction of the heat sink 5. It is located approximately in the center of the
  • the second extending portion 16 is, for example, a plate-shaped member that extends downward from the front end of the bottom surface of the heat sink 5
  • the second extending portion 16 is a plate-shaped member that extends downward from the front end of the bottom surface of the heat sink 5 . It is provided approximately at the center in the left-right direction.
  • Each of the first extending portion 15 and the second extending portion 16 has a circular opening formed in a substantially central portion when viewed from the front side or the rear side.
  • the counterweight attachment portion 17 has a cylindrical shape extending along the front-rear direction.
  • the rear end of the counterweight attachment part 17 is inserted into the opening of the first extension part 15, and the front end of the counterweight attachment part 17 is inserted through the opening of the second extension part 16. There is.
  • the diameter of each opening of the first extension part 15 and the second extension part 16 is approximately the same as the diameter r1 of the counterweight attachment part 17.
  • the counterweight attachment portion 17 is supported by the first extension portion 15 and the second extension portion 16 in a fixed position.
  • the counterweight 18 has, for example, a cylindrical shape extending along the front-rear direction.
  • the length of the counterweight 18 in the front-rear direction is shorter than the length of the counterweight attachment portion 17 in the front-rear direction. Further, as shown in FIG. 5, the diameter r2 of the counterweight 18 is longer than the diameter r1 of the counterweight attachment portion 17.
  • the counterweight 18 has a circular through hole formed approximately in the center when viewed from the front or rear side, and the counterweight attachment portion 17 passes through the through hole.
  • the through hole of the counterweight 18 is screwed into the outer peripheral surface of the counterweight attachment portion 17.
  • the counterweight 18 remains stationary with respect to the counterweight mounting portion 17 due to the frictional force generated by the meshing of the two.
  • the counterweight 18 can be slid in the front-rear direction with respect to the counterweight attachment portion 17.
  • the position adjustment mechanism 19 has, for example, a drive motor and is electrically connected to the counterweight 18. The operator can operate the position adjustment mechanism 19 from the outside of the housing 2, and by operating the position adjustment mechanism 19, the operator can rotate the counterweight 18 and move its position in the front and rear directions.
  • the rotary damper 14 is provided, for example, between the first support portion 7a and the shaft portion 8. With this configuration, when the light source unit 1 is in the unlocked state, it is possible to prevent the light source unit 1 from swinging too much and to control the light source unit 1 to swing appropriately. Note that the rotary damper 14 may be provided not only between the first support portion 7a and the shaft portion 8 but also between the second support portion 7b and the shaft portion 8.
  • the center of gravity G2 with the counterweight is located on the front side compared to the center of gravity G1 shown in FIG.
  • the center of gravity G2 with the counterweight is located on the rear side compared to the center of gravity G1 shown in FIG.
  • the center of gravity G2 with the counterweight can be arbitrarily displaced.
  • the light source unit 1 can be made to stand still in an arbitrary posture in the unlocked state.
  • the light source unit 1 moves as shown by arrow C11 or arrow C12 shown in FIG. It swings around the shaft part 8. Then, the light source unit 1 gradually reduces the swinging range until the center of gravity G2 with the counterweight is located on the straight line L1, and swings while the center of gravity G2 with the counterweight is located on the straight line L1. It will be in a stopped state.
  • the light source unit 1 maintains the position of the center of gravity with counterweight G2 without swinging. Or, after a slight rocking, the rocking stops.
  • the operator After confirming that the light source unit 1 is in the non-swinging state in the unlocked state, the operator switches the state of the light source unit 1 from the unlocked state to the locked state by rotating the adjuster section 23 again. . Thereby, the projection direction of the light pattern from the vehicle road drawing device 102 can be automatically aimed in any direction.
  • the light pattern is most clearly drawn on the road surface when the optical axis P1 of the light source 10 is tilted upward from the horizontal direction.
  • the worker moves the counterweight 18 forward so that the center of gravity G2 with the counterweight is located forward of the shaft portion 8 in the swinging stopped state. Position it at As a result, even if the optical axis P1 of the light source 10 is deviated due to vibrations of the vehicle after the vehicle road drawing device 102 is installed, the optical axis P1 can be returned to the desired direction by performing the aiming work. can.
  • the counterweight 18 may be replaceable with another counterweight 18 having a different weight, or the number of counterweights 18 may be changeable. With such a configuration, by changing the weight of the counterweight 18, the center of gravity G2 with the counterweight can be displaced.
  • the position of the center of gravity G2 with the counterweight can be displaced downward.
  • the position of the center of gravity G2 with the counterweight can be displaced upward.
  • the distance between the shaft portion 8 and the counterweighted center of gravity G2 can be adjusted, so that the magnitude of the swing of the light source unit 1 in the unlocked state can be adjusted.
  • the vehicle road surface drawing device 102 has a plurality of hooks to which the counterweight 18 can be attached, or a plurality of hooks to which the counterweight 18 can be attached, instead of the counterweight attachment part 17 extending along the front-rear direction. It may also include a section. In such a case, the operator can change the position of the counterweight 18 by, for example, opening a part of the housing 2 and inserting his/her hand into the housing 2 . Further, in such a case, the vehicle road surface drawing device 102 does not need to include the position adjustment mechanism 19.
  • the vehicular road drawing device 102 is provided with the counterweight attachment portion 17 to which the counterweight 18 is attached to keep the light source unit 1 stationary in an arbitrary posture in the unlocked state.
  • the center of gravity G2 with counterweight which is the center of gravity of the light source unit 1 to which the counterweight 18 is attached, is at a different position from the center of gravity G1 of the light source unit 1 to which the counterweight 18 is not attached.
  • the light source unit 1 enters a swinging stopped state in a state where the center of gravity G2 with the counterweight is located on the straight line L1 extending from the shaft portion 8 in the vertical direction. Therefore, by adjusting the position and weight of the counterweight 18, the projection direction of the light pattern from the light source unit 1 can be automatically aimed in any direction.
  • the vehicle road drawing device 102 includes a position adjustment mechanism 19 that changes the position of the counterweight 18 from outside the light source unit 1.

Abstract

This road depicting device (101) for vehicles comprises: a light source unit (1); a shaft part (8) which is positioned above the center of gravity (G1) of the light source unit (1) and swingably supports the light source unit (1) with respect to the shaft center; and a lock mechanism (20) which switches between a lock release state in which vibration of the light source unit (1) is allowed, and a lock state in which vibration of the light source unit (1) is not allowed.

Description

車両用路面描画装置Road surface drawing device for vehicles
　本開示は、車両用路面描画装置に関する。 The present disclosure relates to a road surface drawing device for a vehicle.
　従来、車両に搭載される路面描画装置に関する技術が開発されている。例えば、特許文献１には、路面に光パターンを描画する機能を有する車両用灯具であって、光源部および投影光学系の少なくとも一方を制御することにより、光パターンの投影方向を制御することのできる車両用灯具が開示されている。 Conventionally, technologies related to road surface drawing devices mounted on vehicles have been developed. For example, Patent Document 1 discloses a vehicular lamp having a function of drawing a light pattern on a road surface, which controls the projection direction of the light pattern by controlling at least one of a light source section and a projection optical system. A vehicular lamp that can be used is disclosed.
日本国特開２０２０－１３１９２２号公報Japanese Patent Application Publication No. 2020-131922
　特許文献１に記載の車両用灯具では、モータを駆動させることにより光源基板を傾斜させて、光パターンの投影方向を制御するエイミング機構を有する。このような特許文献１に記載の車両用灯具とは異なるエイミング機構を有する車両用路面描画装置が望まれている。 The vehicle lamp described in Patent Document 1 includes an aiming mechanism that controls the projection direction of the light pattern by driving a motor to tilt the light source board. There is a desire for a road surface drawing device for a vehicle that has an aiming mechanism different from that of the vehicle lamp described in Patent Document 1.
　本開示は、上記課題を解決するためになされたもので、その目的は、新規なエイミング機構を有する車両用路面描画装置を提供することである。 The present disclosure has been made to solve the above problems, and its purpose is to provide a road surface drawing device for a vehicle that has a novel aiming mechanism.
　上記目的を達成するために、本開示の一側面に係る車両用路面描画装置は、
　光源ユニットと、
　前記光源ユニットの重心よりも上方に位置して、前記光源ユニットを軸中心に対して揺動可能に支持する軸部と、
　前記光源ユニットの揺動を許可するロック解除状態と、前記光源ユニットの揺動を不許可とするロック状態とを切り替えるロック機構とを備える。 In order to achieve the above object, a road surface drawing device for a vehicle according to one aspect of the present disclosure includes:
a light source unit,
a shaft portion located above the center of gravity of the light source unit and supporting the light source unit so as to be swingable about the shaft center;
A locking mechanism is provided that switches between an unlocked state in which the light source unit is allowed to swing and a locked state in which the light source unit is not allowed to swing.
　本開示によれば、新規なエイミング機構を有する車両用路面描画装置を提供することができる。 According to the present disclosure, it is possible to provide a road surface drawing device for a vehicle having a novel aiming mechanism.
図１は、本開示の実施形態に係る車両用路面描画装置の構成を示す図である。FIG. 1 is a diagram showing the configuration of a road surface drawing device for a vehicle according to an embodiment of the present disclosure. 図２は、図１に示すＩＩ－ＩＩ線断面図である。FIG. 2 is a sectional view taken along the line II-II shown in FIG. 図３は、図２に示す光源ユニットが揺動可能な状態を説明するための図である。FIG. 3 is a diagram for explaining a state in which the light source unit shown in FIG. 2 is swingable. 図４は、本開示の実施形態の変形例に係る車両用路面描画装置の構成を示す図である。FIG. 4 is a diagram illustrating a configuration of a road surface drawing device for a vehicle according to a modification of the embodiment of the present disclosure. 図５は、図４に示すＶ－Ｖ線断面図である。FIG. 5 is a cross-sectional view taken along the line VV shown in FIG.
［全体構成］
　本開示について図面を参照しながら説明する。図１は、本開示の実施形態に係る車両用路面描画装置１０１の構成を示す図である。図１に示すように、車両用路面描画装置１０１は、路面に向けて光を照射する光源ユニット１と、光源ユニット１を収納するハウジング２と、光源ユニット１の光の照射側に設けられるアウターレンズ６と、ハウジング２に設けられる支持部７と、支持部７に取り付けられる軸部８とを備える。 [overall structure]
The present disclosure will be described with reference to the drawings. FIG. 1 is a diagram showing the configuration of a road surface drawing device 101 for a vehicle according to an embodiment of the present disclosure. As shown in FIG. 1, the vehicle road drawing device 101 includes a light source unit 1 that emits light toward the road surface, a housing 2 that houses the light source unit 1, and an outer housing provided on the light irradiation side of the light source unit 1. It includes a lens 6, a support section 7 provided on the housing 2, and a shaft section 8 attached to the support section 7.
　以降の説明では、車両用路面描画装置１０１は、例えば、車両の後部に搭載され、方向表示灯具、ブレーキランプおよびテールランプなどの複数の灯具が一体化されたリアコンビネーションランプ、バックアップランプ、又はハイマウントストップランプと同じ灯体内に配置されていても良く、別体に配置されていても良い。もっとも、車両用路面描画装置１０１は、例えば、車両の前部に搭載され、ロービーム配光パターンやハイビーム配光パターンを照射する灯具や、ＤＲＬ（Ｄａｙｔｉｍｅ　Ｒｕｎｎｉｎｇ　Ｌａｍｐｓ）、ターンシグナルランプなどの複数の灯具が一体化されたヘッドランプと同じ灯体内に配置されていても良く、別体に配置されていても良い。 In the following description, the vehicle road surface drawing device 101 is, for example, a rear combination lamp, a backup lamp, or a high-mounted lamp that is mounted on the rear of the vehicle and integrates a plurality of lamps such as a direction indicator lamp, a brake lamp, and a tail lamp. It may be placed in the same light body as the stop lamp, or may be placed separately. However, the vehicle road surface drawing device 101 is, for example, a plurality of lighting devices such as a lighting device that is mounted on the front of the vehicle and emits a low beam light distribution pattern or a high beam light distribution pattern, DRL (Daytime Running Lamps), turn signal lamps, etc. may be placed in the same lamp body as the integrated headlamp, or may be placed separately.
　また、車両用路面描画装置１０１は、方向表示灯具およびバックアップランプと連動して照射する構成としても良い。また、車両用路面描画装置１０１は、ブレーキランプ、テールランプ、ロービーム配光パターンおよびハイビーム配光パターンを照射する灯具、ＤＲＬならびに他のコミュニケーション用途の灯具などの他の灯具と連動して照射するように構成しても良い。さらに、車両用路面描画装置１０１は、単独で照射する構成としても良い。 Furthermore, the vehicle road surface drawing device 101 may be configured to emit light in conjunction with a direction indicator lamp and a backup lamp. In addition, the vehicle road surface drawing device 101 is configured to emit light in conjunction with other lighting devices such as brake lamps, tail lamps, lighting devices that emit low beam light distribution patterns and high beam light distribution patterns, DRLs, and other communication use lighting devices. It may be configured. Furthermore, the vehicle road surface drawing device 101 may be configured to emit light independently.
　ここでは、車両用路面描画装置１０１が搭載される車両の前後方向に基づいて説明する。図１に示す矢印Ｆの方向が「前方」であり、矢印Ｂの方向が「後方」であるとする。また、図１に示す矢印Ｕの方向が「上方向」であり、矢印Ｄの方向が「下方向」であるとする。 Here, the explanation will be based on the front-rear direction of the vehicle in which the vehicle road drawing device 101 is mounted. Assume that the direction of arrow F shown in FIG. 1 is "forward" and the direction of arrow B is "backward." Further, it is assumed that the direction of arrow U shown in FIG. 1 is "upward" and the direction of arrow D is "downward."
　光源ユニット１は、光源１０と、光学部品１１と、シェード３と、光源基板４と、ヒートシンク５とを含む。光源１０は、発光面が光学部品１１を向くように配置されている。光学部品１１は、レンズまたはリフレクタなどであり、光源１０から出射される光を投射する。また、光学部品１１は、モノフォーカスレンズなどである本体部１１ａと、複数の脚部１１ｂとを有する。脚部１１ｂは、本体部１１ａの入射面側から前方側に向けて延在し、ヒートシンク５に連結されている。脚部１１ｂは、例えば本体部１１ａと同じ材質であり、本体部１１ａと一体的に形成されている。 The light source unit 1 includes a light source 10, an optical component 11, a shade 3, a light source board 4, and a heat sink 5. The light source 10 is arranged so that its light emitting surface faces the optical component 11. The optical component 11 is a lens, a reflector, or the like, and projects the light emitted from the light source 10. Further, the optical component 11 includes a main body portion 11a, such as a monofocus lens, and a plurality of leg portions 11b. The leg portion 11b extends from the entrance surface side of the main body portion 11a toward the front side, and is connected to the heat sink 5. The leg portion 11b is made of the same material as the main body portion 11a, for example, and is formed integrally with the main body portion 11a.
　シェード３は、光源１０から光学部品１１へ入射する光の一部を遮蔽する。光源１０から出射した光は、シェード３に設けられた開口３ａを通って光学部品１１に入射する。光源基板４は、光源１０を支持する。ヒートシンク５は、光源基板４を支持し、光源１０から生じる熱を放熱する。 The shade 3 blocks part of the light that enters the optical component 11 from the light source 10. Light emitted from the light source 10 passes through an opening 3a provided in the shade 3 and enters the optical component 11. The light source board 4 supports the light source 10. The heat sink 5 supports the light source board 4 and radiates heat generated from the light source 10.
　支持部７は、ハウジング２から後方側に向かって延在し、側面視において一部がヒートシンク５と重なる。支持部７のうち、ヒートシンク５と重なる部分において、光源ユニット１の重心Ｇ１よりも上方の位置に、軸部８が貫通する開口が形成されている。 The support portion 7 extends from the housing 2 toward the rear side, and partially overlaps with the heat sink 5 when viewed from the side. An opening through which the shaft portion 8 passes is formed at a position above the center of gravity G1 of the light source unit 1 in a portion of the support portion 7 that overlaps with the heat sink 5.
　図２は、図１に示すＩＩ－ＩＩ線断面図である。図２は、図１に示すヒートシンク５、支持部７および軸部８の断面を前方側から見た状態を示している。図２では、ヒートシンク５、支持部７および軸部８の位置関係を分かりやすくするため、他の構成部品を示していない。図２に示す矢印Ｒの方向が「右方向」であり、矢印Ｌの方向が「左方向」であるとする。 FIG. 2 is a sectional view taken along the line II-II shown in FIG. 1. FIG. 2 shows a cross section of the heat sink 5, support section 7, and shaft section 8 shown in FIG. 1, viewed from the front side. In FIG. 2, other components are not shown in order to make it easier to understand the positional relationship between the heat sink 5, the support part 7, and the shaft part 8. Assume that the direction of arrow R shown in FIG. 2 is "rightward" and the direction of arrow L is "leftward."
　図２に示すように、支持部７は、ヒートシンク５の右側に設けられる第１の支持部７ａと、ヒートシンク５の左側に設けられる第２の支持部７ｂとを含む。軸部８は、車両用路面描画装置１０１の車両への搭載時に水平方向に沿って延在する。軸部８は、第１の支持部７ａ、ヒートシンク５および第２の支持部７ｂを貫通する。また、軸部８は、ヒートシンク５を含む光源ユニット１を軸中心に対して揺動可能に支持する。すなわち、光源ユニット１は、軸部８により支持され、かつ軸部８を中心として図１に示す矢印Ａ１１，Ａ１２の方向に揺動可能である。 As shown in FIG. 2, the support section 7 includes a first support section 7a provided on the right side of the heat sink 5 and a second support section 7b provided on the left side of the heat sink 5. The shaft portion 8 extends along the horizontal direction when the vehicle road drawing device 101 is mounted on a vehicle. The shaft portion 8 passes through the first support portion 7a, the heat sink 5, and the second support portion 7b. Further, the shaft portion 8 supports the light source unit 1 including the heat sink 5 so as to be swingable about the shaft center. That is, the light source unit 1 is supported by the shaft portion 8 and is swingable about the shaft portion 8 in the directions of arrows A11 and A12 shown in FIG.
［ロック機構の説明］
　車両用路面描画装置１０１は、さらに、光源ユニット１の揺動を許可するロック解除状態と、光源ユニット１の揺動を不許可とするロック状態とを切り替えるロック機構２０を備える。より詳細には、ロック機構２０は、ハウジング２に形成された貫通孔１２を貫通するアジャスタ部２３と、アジャスタ部２３に取り付けられた係止部２４とを含む。 [Description of lock mechanism]
The vehicle road drawing device 101 further includes a lock mechanism 20 that switches between an unlocked state in which rocking of the light source unit 1 is permitted and a locked state in which rocking of the light source unit 1 is not permitted. More specifically, the locking mechanism 20 includes an adjuster portion 23 that passes through the through hole 12 formed in the housing 2, and a locking portion 24 attached to the adjuster portion 23.
　アジャスタ部２３の前方側の端部は、ハウジング２の外部に露出し、当該端部以外の部分はハウジング２の内部に設けられている。アジャスタ部２３とハウジング２の貫通孔１２との間には防水リング２５が設けられている。また、アジャスタ部２３は、矢印Ｂ１１，Ｂ１２に示すように、前後方向に延びる回転軸Ｑを中心に回転可能である。 The front end of the adjuster portion 23 is exposed to the outside of the housing 2, and the other portion is provided inside the housing 2. A waterproof ring 25 is provided between the adjuster portion 23 and the through hole 12 of the housing 2. Further, the adjuster portion 23 is rotatable about a rotation axis Q extending in the front-rear direction, as shown by arrows B11 and B12.
　また、アジャスタ部２３とハウジング２の貫通孔１２とにはねじ溝が設けられており、アジャスタ部２３は貫通孔１２に螺合している。これにより、アジャスタ部２３の外周面は貫通孔１２の内周面と間に大きな接触面積が確保され、アジャスタ部２３は任意の回転角度でその姿勢を保つことができる。なお、これとは異なり、例えば、アジャスタ部２３をハウジング２内へ押し込むとアジャスタ部２３がその姿勢を保持できるような構造としてもよい。 Further, a threaded groove is provided in the adjuster portion 23 and the through hole 12 of the housing 2, and the adjuster portion 23 is screwed into the through hole 12. Thereby, a large contact area is ensured between the outer peripheral surface of the adjuster part 23 and the inner peripheral surface of the through hole 12, and the adjuster part 23 can maintain its posture at any rotation angle. Note that, different from this, for example, a structure may be adopted in which when the adjuster part 23 is pushed into the housing 2, the adjuster part 23 can maintain its posture.
　係止部２４は、例えば、アジャスタ部２３の外周の一部を覆うように取り付けられた部材であり、図２に示すように、鉛直方向に沿った断面図において楕円形状を有する。図２では、係止部２４がヒートシンク５に当接している。上述のとおり、光源ユニット１は、軸部８により揺動可能に支持されているが、図２に示すように係止部２４がヒートシンク５に当接している状態でアジャスタ部２３がハウジング２に対する相対姿勢を保つので、光源ユニット１が揺動不可の状態となる。このような状態を、以下「ロック状態」と称する。 The locking part 24 is, for example, a member attached to cover a part of the outer periphery of the adjuster part 23, and has an elliptical shape in a cross-sectional view along the vertical direction, as shown in FIG. In FIG. 2, the locking portion 24 is in contact with the heat sink 5. In FIG. As described above, the light source unit 1 is swingably supported by the shaft portion 8, but as shown in FIG. Since the relative posture is maintained, the light source unit 1 is in a state where it cannot swing. Such a state will be referred to as a "locked state" hereinafter.
　図３は、図２に示す光源ユニット１が揺動可能な状態を説明するための図である。図３は、図２と同様に、図１に示すＩＩ－ＩＩ線断面図を示しており、ヒートシンク５、支持部７および軸部８以外の構成部品を示していない。 FIG. 3 is a diagram for explaining a state in which the light source unit 1 shown in FIG. 2 is swingable. Similar to FIG. 2, FIG. 3 shows a cross-sectional view taken along the line II--II shown in FIG. 1, and does not show components other than the heat sink 5, the support part 7, and the shaft part 8.
　図２および図３を参照して、図２に示すようなロック状態において、作業者が、アジャスタ部２３を、回転軸Ｑを中心として矢印Ｂ１１または矢印Ｂ１２の方向に回転させるとする。この場合、図３に示すように、係止部２４は、回転軸Ｑの位置を変化させずに、ヒートシンク５から離れる。これにより、光源ユニット１は、軸部８を中心として揺動可能となる。このような状態を、以下「ロック解除状態」と称する。 Referring to FIGS. 2 and 3, assume that in the locked state shown in FIG. 2, the operator rotates the adjuster portion 23 about the rotation axis Q in the direction of arrow B11 or arrow B12. In this case, as shown in FIG. 3, the locking portion 24 separates from the heat sink 5 without changing the position of the rotation axis Q. Thereby, the light source unit 1 becomes swingable around the shaft portion 8. Such a state will be referred to as an "unlocked state" hereinafter.
［エイミング機構の説明］
　ここでは、一例として、光パターンが最も鮮明に路面に描画される場合における光源１０の光軸Ｐ１の方向（所定の方向）が、水平方向であるとする。この場合、図１に示すように、光源ユニット１は、車両への車両用路面描画装置１０１の取り付け時において、光源１０の光軸Ｐ１が水平方向に沿うように設けられる。すなわち、光源ユニット１は、ロック解除状態であり、かつ自重による揺動が停止した状態において、光源１０の光軸Ｐ１が水平方向に沿うように設けられる。 [Explanation of aiming mechanism]
Here, as an example, it is assumed that the direction (predetermined direction) of the optical axis P1 of the light source 10 when the light pattern is most clearly drawn on the road surface is the horizontal direction. In this case, as shown in FIG. 1, the light source unit 1 is provided so that the optical axis P1 of the light source 10 is along the horizontal direction when the vehicle road drawing device 101 is attached to the vehicle. That is, the light source unit 1 is provided so that the optical axis P1 of the light source 10 is along the horizontal direction when the light source unit 1 is in the unlocked state and the swinging due to its own weight has stopped.
　車両への車両用路面描画装置１０１の取り付け後、車両の振動などが要因となり、車両用路面描画装置１０１の全体が傾き、光軸Ｐ１が水平方向からずれてしまうことがある。このような場合、作業者は、エイミング作業を行うことにより、光源ユニット１の自重を利用して、光軸Ｐ１を水平方向に沿う状態に戻すことができる。 After the vehicle road surface drawing device 101 is attached to a vehicle, the entire vehicle road surface drawing device 101 may be tilted and the optical axis P1 may deviate from the horizontal direction due to factors such as vehicle vibration. In such a case, the operator can use the weight of the light source unit 1 to return the optical axis P1 to the horizontal direction by performing an aiming operation.
　具体的には、作業者は、車両用路面描画装置１０１のエイミング作業を開始する場合、アジャスタ部２３を回転させて、光源ユニット１の状態をロック状態からロック解除状態に切り替える。光源ユニット１は、ロック解除状態になると、軸部８を中心に揺動可能になる。 Specifically, when starting the aiming work of the vehicle road drawing device 101, the operator rotates the adjuster section 23 to switch the state of the light source unit 1 from the locked state to the unlocked state. When the light source unit 1 is in the unlocked state, it becomes swingable around the shaft portion 8.
　ロック解除状態に切り替えたタイミングにおいて、軸部８から鉛直方向に延びる直線Ｌ１上に光源ユニット１の重心Ｇ１が位置していない場合、光源ユニット１は、自重により、軸部８を中心に揺動する。そして、光源ユニット１は、直線Ｌ１上に重心Ｇ１が位置する状態となるまで揺動する範囲を徐々に小さくして、重心Ｇ１が直線Ｌ１上に位置した状態で停止する。以下、このような状態を「揺動停止状態」とも称する。 If the center of gravity G1 of the light source unit 1 is not located on the straight line L1 extending vertically from the shaft 8 at the timing of switching to the unlocked state, the light source unit 1 will swing around the shaft 8 due to its own weight. do. Then, the light source unit 1 gradually reduces the swing range until the center of gravity G1 is located on the straight line L1, and then stops with the center of gravity G1 located on the straight line L1. Hereinafter, such a state will also be referred to as a "swinging stop state."
　また、ロック解除状態に切り替えたタイミングにおいて、光源ユニット１の重心Ｇ１が既に直線Ｌ１上に位置している場合には、光源ユニット１は、揺動することなく重心Ｇ１の位置を保持し続けるか、または、わずかな揺動を行った後に揺動停止状態となる。 Furthermore, if the center of gravity G1 of the light source unit 1 is already located on the straight line L1 at the timing of switching to the unlocked state, the light source unit 1 may continue to maintain the position of the center of gravity G1 without swinging. Or, after a slight rocking, the rocking stops.
　そして、作業者は、ロック解除状態において光源ユニット１が揺動停止状態であることを確認した後、再びアジャスタ部２３を回転させることにより、光源ユニット１の状態をロック解除状態からロック状態に切り替える。これにより、車両用路面描画装置１０１からの光パターンの上下の投影方向を自動的に調整することができる。 After confirming that the light source unit 1 is in the non-swinging state in the unlocked state, the operator switches the state of the light source unit 1 from the unlocked state to the locked state by rotating the adjuster section 23 again. . Thereby, the vertical projection direction of the light pattern from the vehicle road drawing device 101 can be automatically adjusted.
　なお、上記の所定の方向は、水平方向に限定されない。例えば、作業者は、車両への車両用路面描画装置１０１の取り付け時に、重心Ｇ１が直線Ｌ１上に位置する状態において、光軸Ｐ１が水平方向よりも上方または下方などの任意の方向に向くように、光源ユニット１の光源１０、光学部品１１およびシェード３を配置してもよい。これにより、車両への車両用路面描画装置１０１の取り付け後に光軸Ｐ１の方向がずれた場合であっても、上記のようなエイミング作業を行うことで、当該光軸Ｐ１の方向を任意の方向に戻すことができる。 Note that the above predetermined direction is not limited to the horizontal direction. For example, when installing the vehicle road surface drawing device 101 on a vehicle, an operator may direct the optical axis P1 to any direction such as above or below the horizontal direction while the center of gravity G1 is located on the straight line L1. The light source 10, the optical component 11, and the shade 3 of the light source unit 1 may be arranged. As a result, even if the direction of the optical axis P1 deviates after the vehicle road drawing device 101 is attached to the vehicle, the direction of the optical axis P1 can be changed to any direction by performing the above-mentioned aiming work. can be returned to.
　また、車両用路面描画装置１０１は、水平方向に沿って延在する軸部８に加えて、さらに、鉛直方向または他の方向に沿って延在する他の軸部を備える構成であってもよい。例えば、車両用路面描画装置１０１が、軸部８に加えて、鉛直方向に沿って延在する第２の軸部を備える構成であるとする。この場合、ヒートシンク５は、軸部８を中心に上下方向に揺動するだけでなく、第２の軸部を中心に左右方向にも揺動することができるため、上下方向および左右方向に光パターンの投影方向を調節することができる。 Further, the vehicle road surface drawing device 101 may be configured to include, in addition to the shaft portion 8 extending along the horizontal direction, another shaft portion extending along the vertical direction or another direction. good. For example, assume that the vehicle road surface drawing device 101 is configured to include, in addition to the shaft portion 8, a second shaft portion extending along the vertical direction. In this case, the heat sink 5 can not only swing vertically around the shaft 8 but also swing horizontally around the second shaft, so that the heat sink 5 can emit light in the vertical and horizontal directions. The projection direction of the pattern can be adjusted.
　上記のように、車両用路面描画装置１０１は、光源ユニット１と、光源ユニット１の重心Ｇ１よりも上方に位置して、光源ユニット１を軸中心に対して揺動可能に支持する軸部８と、光源ユニット１の揺動を許可するロック解除状態と、光源ユニット１の揺動を不許可とするロック状態とを切り替えるロック機構２０とを備える。このような構成により、作業者の手間を要することなく、光パターンの投影方向を自動的にエイミングすることができる。したがって、新規なエイミング機構を有する車両用路面描画装置１０１を提供することができる。 As described above, the vehicle road drawing device 101 includes the light source unit 1 and the shaft portion 8 that is located above the center of gravity G1 of the light source unit 1 and supports the light source unit 1 so as to be swingable about the shaft center. and a lock mechanism 20 that switches between an unlocked state in which the light source unit 1 is allowed to swing and a locked state in which the light source unit 1 is not allowed to swing. With such a configuration, the projection direction of the light pattern can be automatically aimed without requiring any effort on the part of the operator. Therefore, it is possible to provide a road surface drawing device 101 for a vehicle having a novel aiming mechanism.
　また、車両用路面描画装置１０１では、光源ユニット１は、ロック解除状態であり、かつ軸部８から鉛直方向に延びる直線Ｌ１上に光源ユニット１の重心Ｇ１が位置することにより光源ユニット１の揺動が停止している揺動停止状態において、光源ユニット１の光軸Ｐ１が所定の方向に沿うように設けられている。このような構成により、光軸Ｐ１の上下方向を任意に調整して、路面に描画される光パターンの上端および下端の少なくともいずれか一方が不鮮明になることを防ぐことができる。 In addition, in the vehicle road drawing device 101, the light source unit 1 is in an unlocked state, and the center of gravity G1 of the light source unit 1 is located on the straight line L1 extending in the vertical direction from the shaft portion 8, so that the light source unit 1 is swayed. In the swing stop state where the movement is stopped, the optical axis P1 of the light source unit 1 is provided along a predetermined direction. With such a configuration, it is possible to arbitrarily adjust the vertical direction of the optical axis P1 to prevent at least one of the upper end and the lower end of the light pattern drawn on the road surface from becoming unclear.
［変形例］
　図４は、本開示の実施形態の変形例に係る車両用路面描画装置１０２の構成を示す図である。図５は、図４に示すＶ－Ｖ線断面図である。図４に示すように、車両用路面描画装置１０２は、車両用路面描画装置１０１の備える各構成要素に加えて、さらに、ロータリーダンパー１４と、第１の延在部１５と、第２の延在部１６と、カウンタウェイト取付部１７と、カウンタウェイト１８と、位置調整機構１９とを備える。車両用路面描画装置１０２の他の構成は、車両用路面描画装置１０１と同様である。 [Modified example]
FIG. 4 is a diagram showing the configuration of a vehicle road surface drawing device 102 according to a modification of the embodiment of the present disclosure. FIG. 5 is a cross-sectional view taken along the line VV shown in FIG. As shown in FIG. 4, the vehicle road surface drawing device 102 includes, in addition to each component included in the vehicle road surface drawing device 101, a rotary damper 14, a first extension portion 15, and a second extension portion. It includes a mounting portion 16, a counterweight attachment portion 17, a counterweight 18, and a position adjustment mechanism 19. The other configuration of the vehicle road surface drawing device 102 is the same as that of the vehicle road surface drawing device 101.
　図４および図５に示すように、第１の延在部１５は、例えば、ヒートシンク５の底面の後方側端部から下方に向けて延在する板状の部材であり、ヒートシンク５の左右方向の略中央に設けられている。第２の延在部１６は、例えば、ヒートシンク５の底面の前方側端部から下方に向けて延在する板状の部材であり、第１の延在部１５と対向するように、ヒートシンク５の左右方向の略中央に設けられている。第１の延在部１５および第２の延在部１６の各々には、前方側または後方側から見て略中央部分に円形の開口が形成されている。 As shown in FIGS. 4 and 5, the first extending portion 15 is, for example, a plate-shaped member that extends downward from the rear end of the bottom surface of the heat sink 5, and extends in the left-right direction of the heat sink 5. It is located approximately in the center of the The second extending portion 16 is, for example, a plate-shaped member that extends downward from the front end of the bottom surface of the heat sink 5 , and the second extending portion 16 is a plate-shaped member that extends downward from the front end of the bottom surface of the heat sink 5 . It is provided approximately at the center in the left-right direction. Each of the first extending portion 15 and the second extending portion 16 has a circular opening formed in a substantially central portion when viewed from the front side or the rear side.
　カウンタウェイト取付部１７は、前後方向に沿って延在する円柱形状を有する。カウンタウェイト取付部１７の後方側の端部が第１の延在部１５の開口に挿入され、カウンタウェイト取付部１７の前方側の端部が第２の延在部１６の開口を貫通している。第１の延在部１５および第２の延在部１６の各々の開口の直径は、カウンタウェイト取付部１７の直径ｒ１と略同一である。カウンタウェイト取付部１７は、第１の延在部１５および第２の延在部１６により、位置が固定された状態で支持されている。 The counterweight attachment portion 17 has a cylindrical shape extending along the front-rear direction. The rear end of the counterweight attachment part 17 is inserted into the opening of the first extension part 15, and the front end of the counterweight attachment part 17 is inserted through the opening of the second extension part 16. There is. The diameter of each opening of the first extension part 15 and the second extension part 16 is approximately the same as the diameter r1 of the counterweight attachment part 17. The counterweight attachment portion 17 is supported by the first extension portion 15 and the second extension portion 16 in a fixed position.
　カウンタウェイト１８は、例えば、前後方向に沿って延在する円柱形状を有する。カウンタウェイト１８の前後方向の長さは、カウンタウェイト取付部１７の前後方向の長さよりも短い。また、図５に示すように、カウンタウェイト１８の直径ｒ２は、カウンタウェイト取付部１７の直径ｒ１よりも長い。 The counterweight 18 has, for example, a cylindrical shape extending along the front-rear direction. The length of the counterweight 18 in the front-rear direction is shorter than the length of the counterweight attachment portion 17 in the front-rear direction. Further, as shown in FIG. 5, the diameter r2 of the counterweight 18 is longer than the diameter r1 of the counterweight attachment portion 17.
　カウンタウェイト１８には、図５に示すように、前方側または後方側から見て略中央部分に円形の貫通孔が形成されており、当該貫通孔にカウンタウェイト取付部１７が貫通している。カウンタウェイト１８の貫通孔は、カウンタウェイト取付部１７の外周面に螺合している。両者の噛み合いにより生じる摩擦力により、カウンタウェイト１８はカウンタウェイト取付部１７に対して静止している。該摩擦力に打ち勝つだけの力を作用させてカウンタウェイト１８を回転させることにより、カウンタウェイト１８をカウンタウェイト取付部１７に対して前後方向にスライドさせることができる。 As shown in FIG. 5, the counterweight 18 has a circular through hole formed approximately in the center when viewed from the front or rear side, and the counterweight attachment portion 17 passes through the through hole. The through hole of the counterweight 18 is screwed into the outer peripheral surface of the counterweight attachment portion 17. The counterweight 18 remains stationary with respect to the counterweight mounting portion 17 due to the frictional force generated by the meshing of the two. By rotating the counterweight 18 by applying a force sufficient to overcome the frictional force, the counterweight 18 can be slid in the front-rear direction with respect to the counterweight attachment portion 17.
　位置調整機構１９は、例えば、駆動モータを有し、カウンタウェイト１８と電気的に接続されている。作業者は、位置調整機構１９をハウジング２の外部から操作可能であり、位置調整機構１９を操作することにより、カウンタウェイト１８を回転させてその位置を前後方向に移動させることができる。 The position adjustment mechanism 19 has, for example, a drive motor and is electrically connected to the counterweight 18. The operator can operate the position adjustment mechanism 19 from the outside of the housing 2, and by operating the position adjustment mechanism 19, the operator can rotate the counterweight 18 and move its position in the front and rear directions.
　ロータリーダンパー１４は、例えば、第１の支持部７ａと軸部８との間に設けられる。このような構成により、光源ユニット１がロック解除状態である場合において、光源ユニット１の揺動が大きくなりすぎることを防ぎ、光源ユニット１が適度に揺動するように制御することができる。なお、ロータリーダンパー１４は、第１の支持部７ａと軸部８との間だけでなく、第２の支持部７ｂと軸部８との間にも設けられてもよい。 The rotary damper 14 is provided, for example, between the first support portion 7a and the shaft portion 8. With this configuration, when the light source unit 1 is in the unlocked state, it is possible to prevent the light source unit 1 from swinging too much and to control the light source unit 1 to swing appropriately. Note that the rotary damper 14 may be provided not only between the first support portion 7a and the shaft portion 8 but also between the second support portion 7b and the shaft portion 8.
　ここで、図１に示す車両用路面描画装置１０１における光源ユニット１の重心Ｇ１と、図４に示す、カウンタウェイト１８が取り付けられた光源ユニット１の重心Ｇ２（以下、「カウンタウェイト付き重心Ｇ２」と称する。）との違いについて説明する。 Here, the center of gravity G1 of the light source unit 1 in the vehicle road drawing device 101 shown in FIG. ).
　例えば、図４に示すように、カウンタウェイト１８が軸部８よりも前方側に位置する場合、カウンタウェイト付き重心Ｇ２は、図１に示す重心Ｇ１と比べて前方側に位置する。また、カウンタウェイト１８が軸部８よりも後方側に位置する場合、カウンタウェイト付き重心Ｇ２は、図１に示す重心Ｇ１と比べて後方側に位置する。 For example, as shown in FIG. 4, when the counterweight 18 is located on the front side of the shaft portion 8, the center of gravity G2 with the counterweight is located on the front side compared to the center of gravity G1 shown in FIG. Furthermore, when the counterweight 18 is located on the rear side of the shaft portion 8, the center of gravity G2 with the counterweight is located on the rear side compared to the center of gravity G1 shown in FIG.
　このように、カウンタウェイト１８を前後方向に移動させることにより、カウンタウェイト付き重心Ｇ２を任意に変位させることができる。そして、カウンタウェイト付き重心Ｇ２を変位させることにより、ロック解除状態において光源ユニット１を任意の姿勢で静止させることができる。 In this way, by moving the counterweight 18 in the front-back direction, the center of gravity G2 with the counterweight can be arbitrarily displaced. By displacing the counterweighted center of gravity G2, the light source unit 1 can be made to stand still in an arbitrary posture in the unlocked state.
［エイミング機構の説明］
　作業者は、車両用路面描画装置１０２のエイミング作業を開始する場合、車両用路面描画装置１０１のエイミング作業を開始する場合と同様に、アジャスタ部２３を回転させて、光源ユニット１の状態をロック状態からロック解除状態に切り替える。光源ユニット１は、ロック解除状態になると、軸部８を中心に揺動可能になる。 [Explanation of aiming mechanism]
When starting the aiming work of the vehicle road surface drawing device 102, the worker rotates the adjuster section 23 to lock the state of the light source unit 1, in the same way as when starting the aiming work of the vehicle road surface drawing device 101. Switch from state to unlocked state. When the light source unit 1 is in the unlocked state, it becomes swingable around the shaft portion 8.
　ロック解除状態に切り替えたタイミングにおいて、軸部８から鉛直方向に延びる直線Ｌ１上にカウンタウェイト付き重心Ｇ２が位置していない場合、光源ユニット１は、図４に示す矢印Ｃ１１または矢印Ｃ１２に示すように軸部８を中心に揺動する。そして、光源ユニット１は、直線Ｌ１上にカウンタウェイト付き重心Ｇ２が位置する状態となるまで揺動する範囲を徐々に小さくして、カウンタウェイト付き重心Ｇ２が直線Ｌ１上に位置した状態で揺動停止状態となる。 If the counterweighted center of gravity G2 is not located on the straight line L1 extending vertically from the shaft portion 8 at the timing of switching to the unlocked state, the light source unit 1 moves as shown by arrow C11 or arrow C12 shown in FIG. It swings around the shaft part 8. Then, the light source unit 1 gradually reduces the swinging range until the center of gravity G2 with the counterweight is located on the straight line L1, and swings while the center of gravity G2 with the counterweight is located on the straight line L1. It will be in a stopped state.
　また、ロック解除状態に切り替えたタイミングにおいて、カウンタウェイト付き重心Ｇ２が既に直線Ｌ１上に位置している場合には、光源ユニット１は、揺動することなくカウンタウェイト付き重心Ｇ２の位置を保持し続けるか、または、わずかな揺動を行った後に揺動停止状態となる。 Furthermore, if the center of gravity with counterweight G2 is already located on the straight line L1 at the timing of switching to the unlocked state, the light source unit 1 maintains the position of the center of gravity with counterweight G2 without swinging. Or, after a slight rocking, the rocking stops.
　そして、作業者は、ロック解除状態において光源ユニット１が揺動停止状態であることを確認した後、再びアジャスタ部２３を回転させることにより、光源ユニット１の状態をロック解除状態からロック状態に切り替える。これにより、車両用路面描画装置１０２からの光パターンの投影方向を任意の方向に自動的にエイミングすることができる。 After confirming that the light source unit 1 is in the non-swinging state in the unlocked state, the operator switches the state of the light source unit 1 from the unlocked state to the locked state by rotating the adjuster section 23 again. . Thereby, the projection direction of the light pattern from the vehicle road drawing device 102 can be automatically aimed in any direction.
　例えば、光源１０の光軸Ｐ１が水平方向よりも上方に傾いた状態において光パターンが最も鮮明に路面に描画されるとする。この場合、作業者は、車両への車両用路面描画装置１０２の取り付け時、揺動停止状態においてカウンタウェイト付き重心Ｇ２が軸部８よりも前方側に位置するように、カウンタウェイト１８を前方側に位置させておく。これにより、車両用路面描画装置１０２の取り付け後、車両の振動などによって光源１０の光軸Ｐ１がずれた場合であっても、エイミング作業を行うことで光軸Ｐ１を任意の方向に戻すことができる。 For example, assume that the light pattern is most clearly drawn on the road surface when the optical axis P1 of the light source 10 is tilted upward from the horizontal direction. In this case, when attaching the vehicle road surface drawing device 102 to the vehicle, the worker moves the counterweight 18 forward so that the center of gravity G2 with the counterweight is located forward of the shaft portion 8 in the swinging stopped state. Position it at As a result, even if the optical axis P1 of the light source 10 is deviated due to vibrations of the vehicle after the vehicle road drawing device 102 is installed, the optical axis P1 can be returned to the desired direction by performing the aiming work. can.
　なお、カウンタウェイト１８は、重さの異なる他のカウンタウェイト１８に取り換え可能であってもよいし、個数を変更可能であってもよい。このような構成であれば、カウンタウェイト１８の重さを変更することで、カウンタウェイト付き重心Ｇ２を変位させることができる。 Note that the counterweight 18 may be replaceable with another counterweight 18 having a different weight, or the number of counterweights 18 may be changeable. With such a configuration, by changing the weight of the counterweight 18, the center of gravity G2 with the counterweight can be displaced.
　例えば、カウンタウェイト１８を重くすることにより、カウンタウェイト付き重心Ｇ２の位置を下方へ変位させることができる。一方、カウンタウェイト１８を軽くすることにより、カウンタウェイト付き重心Ｇ２の位置を上方へ変位させることができる。これにより、軸部８とカウンタウェイト付き重心Ｇ２との間の距離を調整することができるため、ロック解除状態における光源ユニット１の揺動の大きさ調整することができる。 For example, by increasing the weight of the counterweight 18, the position of the center of gravity G2 with the counterweight can be displaced downward. On the other hand, by making the counterweight 18 lighter, the position of the center of gravity G2 with the counterweight can be displaced upward. Thereby, the distance between the shaft portion 8 and the counterweighted center of gravity G2 can be adjusted, so that the magnitude of the swing of the light source unit 1 in the unlocked state can be adjusted.
　また、車両用路面描画装置１０２は、前後方向に沿って延在するカウンタウェイト取付部１７の代わりに、カウンタウェイト１８を取り付け可能な複数のフック、または、カウンタウェイト１８を取り付け可能な複数の取付部を備えてもよい。このような場合、作業者は、例えば、ハウジング２の一部を開放し、当該ハウジング２の内部に手を挿入してカウンタウェイト１８の位置を変更することができる。また、このような場合、車両用路面描画装置１０２は、位置調整機構１９を備えなくてもよい。 In addition, the vehicle road surface drawing device 102 has a plurality of hooks to which the counterweight 18 can be attached, or a plurality of hooks to which the counterweight 18 can be attached, instead of the counterweight attachment part 17 extending along the front-rear direction. It may also include a section. In such a case, the operator can change the position of the counterweight 18 by, for example, opening a part of the housing 2 and inserting his/her hand into the housing 2 . Further, in such a case, the vehicle road surface drawing device 102 does not need to include the position adjustment mechanism 19.
　上記のように、車両用路面描画装置１０２には、ロック解除状態で光源ユニット１を任意の姿勢で静止させるカウンタウェイト１８が取り付けられるカウンタウェイト取付部１７が設けられている。このような構成により、カウンタウェイト１８が取り付けられた光源ユニット１の重心であるカウンタウェイト付き重心Ｇ２は、カウンタウェイト１８が取り付けられていない光源ユニット１の重心Ｇ１とは異なる位置になる。そして、光源ユニット１は、軸部８から鉛直方向に延びる直線Ｌ１上にカウンタウェイト付き重心Ｇ２が位置する状態で揺動停止状態となる。このため、カウンタウェイト１８の位置および重さなどを調整することにより、光源ユニット１からの光パターンの投影方向を任意の方向に自動的にエイミングすることができる。 As described above, the vehicular road drawing device 102 is provided with the counterweight attachment portion 17 to which the counterweight 18 is attached to keep the light source unit 1 stationary in an arbitrary posture in the unlocked state. With this configuration, the center of gravity G2 with counterweight, which is the center of gravity of the light source unit 1 to which the counterweight 18 is attached, is at a different position from the center of gravity G1 of the light source unit 1 to which the counterweight 18 is not attached. Then, the light source unit 1 enters a swinging stopped state in a state where the center of gravity G2 with the counterweight is located on the straight line L1 extending from the shaft portion 8 in the vertical direction. Therefore, by adjusting the position and weight of the counterweight 18, the projection direction of the light pattern from the light source unit 1 can be automatically aimed in any direction.
　また、車両用路面描画装置１０２は、カウンタウェイト１８の位置を光源ユニット１の外部から変更する位置調整機構１９を備える。このような構成により、光源ユニット１が車両に搭載された後であっても、カウンタウェイト１８の位置を光源ユニット１の外部から変更することにより光源ユニット１の傾きを調整して、光パターンの投影方向を変更することができる。 Additionally, the vehicle road drawing device 102 includes a position adjustment mechanism 19 that changes the position of the counterweight 18 from outside the light source unit 1. With such a configuration, even after the light source unit 1 is mounted on a vehicle, the inclination of the light source unit 1 can be adjusted by changing the position of the counterweight 18 from the outside of the light source unit 1, and the light pattern can be adjusted. The projection direction can be changed.
　以上、本開示の実施形態について説明をしたが、本開示の技術的範囲が本実施形態の説明によって限定的に解釈されるべきではないのは言うまでもない。本実施形態は単なる一例であって、請求の範囲に記載された発明の範囲内において、様々な実施形態の変更が可能であることが当業者によって理解されるところである。本開示の技術的範囲は請求の範囲に記載された発明の範囲およびその均等の範囲に基づいて定められるべきである。 Although the embodiments of the present disclosure have been described above, it goes without saying that the technical scope of the present disclosure should not be interpreted to be limited by the description of the present embodiments. This embodiment is merely an example, and those skilled in the art will understand that various modifications can be made within the scope of the invention as set forth in the claims. The technical scope of the present disclosure should be determined based on the scope of the invention described in the claims and the equivalent scope thereof.
　本出願は、２０２２年６月２７日出願の日本特許出願２０２２－１０２５６７に基づくものであり、その内容はここに参照として取り込まれる。 This application is based on Japanese Patent Application No. 2022-102567 filed on June 27, 2022, the contents of which are incorporated herein by reference.

Claims (4)

  1. 　車両用路面描画装置であって、
    　光源ユニットと、
    　前記光源ユニットの重心よりも上方に位置して、前記光源ユニットを軸中心に対して揺動可能に支持する軸部と、
    　前記光源ユニットの揺動を許可するロック解除状態と、前記光源ユニットの揺動を不許可とするロック状態とを切り替えるロック機構とを備える、車両用路面描画装置。     A road surface drawing device for a vehicle,
    a light source unit,
    a shaft portion located above the center of gravity of the light source unit and supporting the light source unit so as to be swingable about the shaft center;
    A road surface drawing device for a vehicle, comprising: a lock mechanism that switches between an unlocked state in which rocking of the light source unit is permitted and a locked state in which rocking of the light source unit is not permitted.
  2. 　前記光源ユニットは、前記ロック解除状態であり、かつ前記軸部から鉛直方向に延びる直線上に前記光源ユニットの重心が位置することにより前記光源ユニットの揺動が停止している状態において、前記光源ユニットの光軸が所定の方向に沿うように設けられている、請求項１に記載の車両用路面描画装置。 The light source unit is in the unlocked state and the center of gravity of the light source unit is located on a straight line extending vertically from the shaft portion, so that the light source unit is stopped from swinging. The road surface drawing device for a vehicle according to claim 1, wherein the optical axis of the unit is provided along a predetermined direction.
  3. 　前記車両用路面描画装置は、さらに、
    　前記ロック解除状態で前記光源ユニットを任意の姿勢で静止させるカウンタウェイト、が取り付けられるカウンタウェイト取付部が設けられている、請求項１に記載の車両用路面描画装置。     The vehicle road surface drawing device further includes:
    2. The road surface drawing device for a vehicle according to claim 1, further comprising a counterweight attachment portion to which a counterweight is attached to keep the light source unit stationary in an arbitrary posture in the unlocked state.
  4. 　前記車両用路面描画装置は、さらに、
    　前記カウンタウェイトの位置を前記光源ユニットの外部から変更する位置調整機構を備える、請求項３に記載の車両用路面描画装置。
          The vehicle road surface drawing device further includes:
    The road surface drawing device for a vehicle according to claim 3, further comprising a position adjustment mechanism that changes the position of the counterweight from outside the light source unit.
PCT/JP2023/020869 2022-06-27 2023-06-05 Road surface depicting device for vehicle WO2024004540A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022102567 2022-06-27
JP2022-102567 2022-06-27

Publications (1)

Publication Number Publication Date
WO2024004540A1 true WO2024004540A1 (en) 2024-01-04

Family

ID=89382787

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/020869 WO2024004540A1 (en) 2022-06-27 2023-06-05 Road surface depicting device for vehicle

Country Status (1)

Country Link
WO (1) WO2024004540A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04135840U (en) * 1991-06-11 1992-12-17 小糸工業株式会社 Vehicle headlight swing device
JP2016009642A (en) * 2014-06-26 2016-01-18 三菱自動車工業株式会社 Fixing structure for vehicle lighting
WO2020066599A1 (en) * 2018-09-28 2020-04-02 株式会社小糸製作所 Vehicle headlight

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04135840U (en) * 1991-06-11 1992-12-17 小糸工業株式会社 Vehicle headlight swing device
JP2016009642A (en) * 2014-06-26 2016-01-18 三菱自動車工業株式会社 Fixing structure for vehicle lighting
WO2020066599A1 (en) * 2018-09-28 2020-04-02 株式会社小糸製作所 Vehicle headlight

Similar Documents

Publication Publication Date Title
JP6883081B2 (en) Vehicle lighting system and vehicle lighting control device
KR100330940B1 (en) Automotive headlamp
JP4400884B2 (en) Vehicle lamp
JP6034608B2 (en) Vehicle headlamp
US7878694B2 (en) Up-down and left-right tiltable vehicular lamp
JP5675272B2 (en) Vehicle lamp
JP2003127760A (en) Headlamp for automobile
JP2011060727A (en) Headlamp for vehicle
JP2000057824A (en) Headlight for vehicle
US7575351B2 (en) Vehicular headlamp
JP5112218B2 (en) Vehicle headlamp
JP6545588B2 (en) Beam pattern adjustment system for adaptive front lighting system
JP2010067554A (en) Vehicle headlight
JP2004022324A (en) Headlamp for vehicle
WO2024004540A1 (en) Road surface depicting device for vehicle
KR100683222B1 (en) Apparatus for controlling a angle of bulb
JP2010137616A (en) Lighting system for vehicle
JP2011060730A (en) Headlamp for vehicle
JP5545973B2 (en) Vehicle headlamp
JP2011238408A (en) Headlight for vehicle
JP2017013737A (en) Light distribution control device of lamp
JP3972998B2 (en) Vehicle headlamp
US7144141B2 (en) Self-aim vehicle light device
WO2023248773A1 (en) Road surface rendering device for vehicle
JP2012069312A (en) Vehicular headlight

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23830990

Country of ref document: EP

Kind code of ref document: A1