WO2024158015A1 - Road surface drawing device for vehicles - Google Patents

Road surface drawing device for vehicles Download PDF

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Publication number
WO2024158015A1
WO2024158015A1 PCT/JP2024/002085 JP2024002085W WO2024158015A1 WO 2024158015 A1 WO2024158015 A1 WO 2024158015A1 JP 2024002085 W JP2024002085 W JP 2024002085W WO 2024158015 A1 WO2024158015 A1 WO 2024158015A1
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WO
WIPO (PCT)
Prior art keywords
light source
vehicle
road surface
drawing device
bank angle
Prior art date
Application number
PCT/JP2024/002085
Other languages
French (fr)
Japanese (ja)
Inventor
由希子 北澤
Original Assignee
株式会社小糸製作所
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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 WO2024158015A1 publication Critical patent/WO2024158015A1/en

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    • 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
    • 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
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J6/00—Arrangement of optical signalling or lighting devices on cycles; Mounting or supporting thereof; Circuits therefor
    • B62J6/02—Headlights
    • B62J6/022—Headlights specially adapted for motorcycles or the like
    • B62J6/023—Headlights specially adapted for motorcycles or the like responsive to the lean angle of the cycle, e.g. changing intensity or switching sub-lights when cornering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J6/00—Arrangement of optical signalling or lighting devices on cycles; Mounting or supporting thereof; Circuits therefor
    • B62J6/02—Headlights
    • B62J6/022—Headlights specially adapted for motorcycles or the like
    • B62J6/026—Headlights specially adapted for motorcycles or the like characterised by the structure, e.g. casings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J6/00—Arrangement of optical signalling or lighting devices on cycles; Mounting or supporting thereof; Circuits therefor
    • B62J6/22—Warning or information lights
    • B62J6/24—Warning or information lights warning or informing the rider, e.g. low fuel warning lights
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J6/00—Arrangement of optical signalling or lighting devices on cycles; Mounting or supporting thereof; Circuits therefor
    • B62J6/22—Warning or information lights
    • B62J6/26—Warning or information lights warning or informing other road users, e.g. police flash lights

Definitions

  • This disclosure relates to a road surface drawing device for a vehicle.
  • Patent Document 1 discloses a road surface drawing lamp unit that draws patterns such as figures and letters on the road surface.
  • the drawing pattern can be formed without any problems when traveling straight, but because a motorcycle requires banking when turning right or left, the shape of the drawing pattern becomes distorted when turning right or left.
  • the present disclosure therefore aims to provide a road surface drawing device for vehicles that can create a drawing pattern that is easily visible even when the vehicle is banking.
  • a vehicle road surface drawing device Installed on vehicles that turn right or left by tilting the body in the direction of the turn.
  • a light source unit is provided.
  • the light source unit includes: When turning right or left, if the bank angle is within a specified range, a right or left turn preparation drawing pattern is projected, If the bank angle is outside a predetermined range when turning right or left, a drawing pattern for turning right or left is projected.
  • the road surface drawing device for vehicles disclosed herein can provide a road surface drawing device for vehicles that can form a drawing pattern that is easily visible even when the vehicle is banking.
  • FIG. 1 is a front view of a vehicle equipped with a road surface drawing device for a vehicle according to an embodiment.
  • FIG. 2 is a cross-sectional view of the road marking lamp according to the embodiment.
  • FIG. 3 is a front view of the road marking lamp according to the embodiment.
  • FIG. 4 is a block diagram of a road marking lamp according to an embodiment.
  • FIG. 5A is a diagram showing a road surface drawing pattern as seen by a driver of a vehicle equipped with a vehicle road surface drawing device according to the embodiment.
  • FIG. 5B is a diagram showing a road surface drawing pattern as seen by a driver of a vehicle equipped with the vehicle road surface drawing device according to the embodiment.
  • FIG. 5A is a diagram showing a road surface drawing pattern as seen by a driver of a vehicle equipped with a vehicle road surface drawing device according to the embodiment.
  • FIG. 5B is a diagram showing a road surface drawing pattern as seen by a driver of a vehicle equipped with the vehicle road surface drawing device according to the embodiment
  • FIG. 6 is a bird's-eye view showing a state in which a vehicle equipped with a road surface drawing device for a vehicle according to the embodiment is being driven.
  • FIG. 7 is a bird's-eye view showing a state in which a vehicle equipped with a road surface drawing device for a vehicle according to the embodiment is being driven.
  • FIG. 8 is a flowchart showing a method for controlling the lighting state of the vehicle road surface drawing device according to the embodiment.
  • FIG. 9 is a graph showing the lighting state and the bank angle of the vehicle in the vehicle road surface drawing device according to the embodiment.
  • FIG. 10 is a graph showing the lighting state and the bank angle of a vehicle in a road surface drawing device for a vehicle according to another embodiment.
  • U, D, F, B, R, and L shown in Figure 1 indicate directions in the vehicle road surface drawing device, where U is up, D is down, F is forward, B is backward, R is right, and L is left.
  • FIG. 1 is a front view of a vehicle equipped with a road surface drawing device for vehicles according to the present disclosure.
  • the following description will explain a road surface drawing device for vehicles 1 that is equipped on vehicles that travel in countries or regions where the law requires vehicles to travel in the lane on the left side of the road as they travel, but the road surface drawing device for vehicles 1 according to the present disclosure is not limited to this.
  • the present disclosure can be applied, for example, to a road surface drawing device for vehicles that is equipped on vehicles that travel in countries or regions where the law requires vehicles to travel in the lane on the right side of the road as they travel.
  • FIG. 1 is a front view of a vehicle 100 equipped with a vehicle road surface drawing device 1 according to this embodiment.
  • the vehicle 100 is a two-wheeled vehicle that turns right or left by leaning (banking) the body in the direction of the turn.
  • the vehicle 100 is equipped with a vehicle road surface drawing device 1, a headlight, and a turn signal lamp (TSL).
  • the vehicle road surface drawing device 1 has a left vehicle road surface drawing device 1a and a right vehicle road surface drawing device 1b, the headlights have a left headlight 10a and a right headlight 10b, and the TSL has a left TSL 11a and a right TSL 11b.
  • the vehicle road surface drawing device 1 is incorporated inside the headlight 10. Note that in FIG. 1, a vehicle 100 in which the vehicle road surface drawing device 1, the headlight 10, and the TSL 11 are provided on the left and right sides will be described, but the present disclosure is not limited thereto.
  • the road surface drawing device 1a for a left vehicle has an outer lens 2, a housing 3, an inner lens 4, and a light source unit 5.
  • a lamp chamber is formed by the outer lens 2 and the housing 3, and the light source unit 5 is provided inside the lamp chamber.
  • the light source unit 5 further has a first light source 6a, a second light source 6b, and a substrate 7.
  • the first light source 6a and the second light source 6b have elongated light-emitting surfaces, and are provided at different positions on the substrate.
  • Figure 3 is a front view of the left vehicle road surface drawing device 1a according to the embodiment.
  • the first light source 6a is provided at the center of the inner lens 4 when viewed from the front of the vehicle 100.
  • the second light source 6b is provided at a position away from the first light source 6a when viewed from the front.
  • the first light source 6a is provided at a position closer to the focal position of the inner lens 4 than the second light source 6b.
  • Fig. 4 is a block diagram of a road surface drawing lamp according to the embodiment.
  • the vehicle road surface drawing device 1 has a receiving unit 21 and a lamp control unit 22.
  • the receiving unit 21 acquires bank angle information about the bank angle ⁇ of the vehicle 100 from a sensor 20 mounted on the vehicle 100, and transmits the bank angle information to the lamp control unit 22.
  • the lamp control unit 22 controls the first light source 6a and the second light source 6b based on the acquired bank angle information.
  • the drawing pattern formed by turning on the first light source 6a will be referred to as a right/left turn preparation drawing pattern L1
  • the drawing pattern formed by turning on the second light source 6b will be referred to as a right/left turn drawing pattern L2.
  • FIGS. 5A and 5B are diagrams showing a road surface drawing pattern as seen by a driver of a vehicle equipped with a vehicle road surface drawing device according to the embodiment.
  • the bank angle ⁇ of the vehicle 100 is defined as 0° when the vehicle 100 is upright with respect to the ground.
  • the absolute value of the maximum or minimum value of the above-mentioned predetermined range that is, the value of the bank angle ⁇ based on which the vehicle road surface drawing device 1 switches between the irradiation of the right/left turn preparation drawing pattern L1 and the irradiation of the right/left turn drawing pattern L2, is referred to as the set bank angle ⁇ th .
  • FIG. 5 illustrates the vehicle 100, including a handlebar portion of the vehicle 100 and the horizon G.
  • Fig. 5A illustrates a state in which the vehicle 100 is not banked
  • Fig. 5B illustrates a state in which the vehicle 100 is banked beyond the set bank angle ⁇ th .
  • 5A and 5B the up-down direction is always drawn based on the vehicle body, so when the vehicle 100 is banked in the drawings, the horizon G is shown as being inclined with respect to the vehicle 100.
  • the vehicle 100 is not banking, so by turning on the first light source 6a and drawing the right/left turn preparation drawing pattern L1, it is possible to form a drawing pattern that is easy to see.
  • the road surface drawing device 1 of the present disclosure turns on the second light source 6b and draws a right/left turn drawing pattern L2 that is different from the right/left turn preparation drawing pattern L1.
  • the angle between the right/left turn preparation drawing pattern L1 and the drawing pattern L2 for right/left turns is configured to be equal to the set bank angle ⁇ th .
  • the angle between the longitudinal direction of the light emitting surface of the first light source 6a and the longitudinal direction of the light emitting surface of the second light source 6b is configured to be the set bank angle ⁇ th .
  • the "angle formed by the longitudinal direction of the light-emitting surface of the first light source 6 a and the longitudinal direction of the light-emitting surface of the second light source 6 b" does not have to be completely equal to the set bank angle ⁇ th , and the "angle formed” also includes a range of 10% from the minimum or maximum value.
  • Figure 8 is a flowchart showing a method for the lamp control unit to control the first light source 6a and the second light source 6b.
  • Figures 6 and 7 show an example in which the vehicle 100 travels on the left side, but the traveling position of the vehicle 100 is not limited to this.
  • Fig. 6 shows a situation where the vehicle 100 equipped with the road surface drawing device for vehicle 1 according to the present disclosure approaches an intersection.
  • the vehicle 100 attempts to turn left at the intersection in the situation shown in Fig. 6 and turns on the left TSL 11a.
  • the vehicle 100 has not yet started banking, and the bank angle of the vehicle 100 is within a predetermined range (equal to or less than the set bank angle ⁇ th ).
  • the lamp control unit 22 acquires the TSL signal (STEP 1). If the lamp control unit 22 determines that the TSL signal is ON (STEP 2: YES), it acquires bank angle information of the vehicle 100 (STEP 3). Next, the lamp control unit 22 determines whether the absolute value of the bank angle ⁇ is less than a predetermined value (in this embodiment, the set bank angle ⁇ th ) (STEP 4). In the situation shown in Fig. 6, since the bank angle ⁇ of the vehicle 100 is less than the predetermined value (STEP 4: YES), the lamp control unit 22 turns on the first light source 6a and draws the right/left turn preparation drawing pattern L1 (STEP 5).
  • a predetermined value in this embodiment, the set bank angle ⁇ th
  • the lighting control unit does not change the lighting state of the first light source 6a as long as the bank angle is within a predetermined range (STEP 4: YES) and the TSL signal is ON (STEP 7: NO).
  • Fig. 7 is an overhead view showing the vehicle 100 turning left at an intersection.
  • Fig. 7 shows a situation in which the vehicle 100 advances from the situation in Fig. 6 and is actually turning left.
  • the vehicle 100 is leaning to the left, and the bank angle ⁇ is outside the predetermined range (greater than or equal to the set bank angle ⁇ th ).
  • the TSL signal is still ON.
  • the lamp control unit determines that the bank angle ⁇ is equal to or greater than a predetermined value (STEP 4: NO), and turns off the first light source 6a and turns on the second light source 6b (STEP 6).
  • the lamp control unit then acquires the TSL signal again (STEP 7).
  • the TSL signal is OFF (STEP 7: YES)
  • the first light source 6a and the second light source 6b are turned off (STEP 8), and if it is ON (STEP 7: NO)
  • the bank angle information is acquired again (STEP 3).
  • the relationship between the bank angle ⁇ of the vehicle 100 and the lighting states of the TSL, the first light source 6a, and the second light source 6b is shown in graphs in FIGS. 9, the first light source 6a is turned on when the TSL is turned on, and is turned off when the bank angle ⁇ of the vehicle 100 becomes equal to or larger than the set bank angle ⁇ th .
  • the second light source 6b is turned on when the bank angle ⁇ of the vehicle 100 becomes equal to the set bank angle ⁇ th , and is turned off when the bank angle ⁇ of the vehicle 100 becomes equal to or smaller than the set bank angle ⁇ th .
  • the TSL is turned on
  • the first light source 6a is turned on together with the second light source 6b being turned off.
  • the first light source 6a may be configured not to be turned on even if the second light source 6b is turned off.
  • the inventor realized that by preparing two types of light distribution patterns when drawing the road surface when turning right or left, rather than when turning around a curve, and using them depending on the bank angle, it is possible to provide road surface drawing with good visibility.
  • the road surface drawing device disclosed herein projects a straight line drawing pattern when turning right or left if the bank angle is within a specified range, and projects a right or left turn drawing pattern when the bank angle is outside the specified range. This makes it possible to provide a road surface drawing with good visibility when turning right or left on a motorcycle.
  • the lamp control unit 22 turns on the first light source 6a and draws the right/left turn preparation drawing pattern L1, thereby forming a drawing pattern that is easy to see.
  • the vehicle 100 is banked beyond the set bank angle ⁇ th .
  • the first light source 6a is turned on and the right/left turn preparation drawing pattern L1 is drawn in the situation shown in Fig. 5B, the right/left turn preparation drawing pattern L1 is formed below the vehicle 100, and the visibility of the drawing pattern is reduced.
  • the second light source 6b is turned on and the drawing pattern L2 for right/left turns is drawn.
  • the distance between the vehicle 100 and the ground G is close, so the drawing pattern L2 for right/left turns is drawn in a position that is easier to see than the drawing pattern L1 for preparing to right/left turns.
  • the light source unit 5 has a first light source 6a and a second light source 6b provided at different positions on the substrate 7. This makes it possible to form a plurality of road surface drawing patterns for preparing to turn right or left and for turning right or left without using a mechanical structure such as a swivel mechanism. In other words, according to the road surface drawing device for a vehicle of the present disclosure, it is possible to form a drawing pattern that is easy to see even when the vehicle banks, with a simple structure.
  • the distance between the first light source 6a and the focal point of the inner lens 4 is smaller than the distance between the second light source 6b and the focal point of the inner lens 4. Furthermore, the angle between the longitudinal direction of the light emitting surface of the first light source 6a and the longitudinal direction of the light emitting surface of the second light source 6b is set to the absolute value of the maximum or minimum value of a predetermined range of the bank angle ⁇ (the set bank angle ⁇ th in the above-mentioned embodiment). As a result, the angle between the longitudinal direction of the right/left turn preparation drawing pattern L1 formed by turning on the first light source 6a and the longitudinal direction of the right/left turn drawing pattern L2 formed by turning on the second light source 6b can be set to the set bank angle ⁇ th .
  • the speed of the vehicle when turning right or left at an intersection is approximately constant (10 to 20 km/h), so the bank angle of the vehicle is also approximately constant. Therefore, in the vehicle lamp of the present disclosure, the angle between the longitudinal direction of the light-emitting surface of the first light source 6a and the longitudinal direction of the light-emitting surface of the second light source 6b is set to an angle that is predicted in advance for the vehicle 100 to bank when turning right or left.
  • the drawing pattern L2 for turning right or left can be emitted by shifting it by the angle (set bank angle ⁇ th ) that is predicted for the vehicle 100 to bank. As a result, a drawing pattern that is easy to see can be formed even when turning right or left.
  • a single road surface drawing device for vehicles may be configured to form drawing patterns for both right turns and left turns.
  • the above configuration may be achieved by providing three or more light sources within a single road surface drawing device for vehicles.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

A road surface drawing device (1) for vehicles provided to a vehicle that turns to the left or to the right as a result of tilting the vehicle body in the turning direction, said road surface drawing device (1) for vehicles having a light source unit (5) that emits a right/left turn preparation drawing pattern L1 if the bank angle is within a predetermined range at the time of a right/left turn and emits a right/left turn time drawing pattern L2 if the bank angle is outside of the predetermined range at the time of a right/left turn.

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。 This disclosure relates to a road surface drawing device for a vehicle.
　特許文献１に記載の車両用灯具においては、路面上に図形や文字などの描画パターンを描画する路面描画用灯具ユニットが開示されている。 The vehicle lamp described in Patent Document 1 discloses a road surface drawing lamp unit that draws patterns such as figures and letters on the road surface.
日本国特許第７０９１３４６号公報Japanese Patent No. 7091346
　特許文献１に記載のような路面描画用灯具ユニットを二輪車に適用する場合を考える。この場合、直進時は問題なく描画パターンを形成することができるが、二輪車は右左折時にバンクを伴うため、右左折時において描画パターンの形状が崩れてしまう。 Let us consider the case where a road surface drawing lamp unit such as that described in Patent Document 1 is applied to a motorcycle. In this case, the drawing pattern can be formed without any problems when traveling straight, but because a motorcycle requires banking when turning right or left, the shape of the drawing pattern becomes distorted when turning right or left.
　そこで本開示は車両がバンクした際においても視認しやすい描画パターンを形成することができる車両用路面描画装置を提供することを目的とする。 The present disclosure therefore aims to provide a road surface drawing device for vehicles that can create a drawing pattern that is easily visible even when the vehicle is banking.
　本開示の一態様に係る車両用路面描画装置は、
　曲がる方向に向かって車体を傾けることで右左折する車両に設けられ、
　光源ユニットを有し、
　前記光源ユニットは、
　右左折時にバンク角が所定範囲内であれば右左折準備描画パターンを照射し、
　右左折時にバンク角が所定範囲外であれば右左折時描画パターンを照射する。 According to one aspect of the present disclosure, there is provided a vehicle road surface drawing device,
Installed on vehicles that turn right or left by tilting the body in the direction of the turn.
A light source unit is provided.
The light source unit includes:
When turning right or left, if the bank angle is within a specified range, a right or left turn preparation drawing pattern is projected,
If the bank angle is outside a predetermined range when turning right or left, a drawing pattern for turning right or left is projected.
　本開示の車両用路面描画装置によれば、車両がバンクした際においても視認しやすい描画パターンを形成することができる車両用路面描画装置を提供することができる。 The road surface drawing device for vehicles disclosed herein can provide a road surface drawing device for vehicles that can form a drawing pattern that is easily visible even when the vehicle is banking.
図１は、実施形態に係る車両用路面描画装置が搭載された車両の正面図である。FIG. 1 is a front view of a vehicle equipped with a road surface drawing device for a vehicle according to an embodiment. 図２は、実施形態に係る路面描画用灯具の断面図である。FIG. 2 is a cross-sectional view of the road marking lamp according to the embodiment. 図３は、実施形態に係る路面描画用灯具の正面図である。FIG. 3 is a front view of the road marking lamp according to the embodiment. 図４は、実施形態に係る路面描画用灯具のブロック図である。FIG. 4 is a block diagram of a road marking lamp according to an embodiment. 図５Ａは、実施形態に係る車両用路面描画装置が搭載された車両の運転者から見た路面描画パターンを示す図である。FIG. 5A is a diagram showing a road surface drawing pattern as seen by a driver of a vehicle equipped with a vehicle road surface drawing device according to the embodiment. 図５Ｂは、実施形態に係る車両用路面描画装置が搭載された車両の運転者から見た路面描画パターンを示す図である。FIG. 5B is a diagram showing a road surface drawing pattern as seen by a driver of a vehicle equipped with the vehicle road surface drawing device according to the embodiment. 図６は、実施形態に係る車両用路面描画装置が搭載された車両の運転時の様子を示す俯瞰図である。FIG. 6 is a bird's-eye view showing a state in which a vehicle equipped with a road surface drawing device for a vehicle according to the embodiment is being driven. 図７は、実施形態に係る車両用路面描画装置が搭載された車両の運転時の様子を示す俯瞰図である。FIG. 7 is a bird's-eye view showing a state in which a vehicle equipped with a road surface drawing device for a vehicle according to the embodiment is being driven. 図８は、実施形態に係る車両用路面描画装置の点灯状態の制御方法を示すフローチャートである。FIG. 8 is a flowchart showing a method for controlling the lighting state of the vehicle road surface drawing device according to the embodiment. 図９は、実施形態に係る車両用路面描画装置の点灯状態と車両のバンク角度を示すグラフである。FIG. 9 is a graph showing the lighting state and the bank angle of the vehicle in the vehicle road surface drawing device according to the embodiment. 図１０は、別の実施形態に係る車両用路面描画装置の点灯状態と車両のバンク角度を示すグラフである。FIG. 10 is a graph showing the lighting state and the bank angle of a vehicle in a road surface drawing device for a vehicle according to another embodiment.
［本開示の実施形態の詳細］
　本開示の実施形態に係る車両用灯具の具体例を、以下に図面を参照しつつ説明する。なお、本開示はこれらの例示に限定されるものではなく、特許請求の範囲によって示され、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。 [Details of the embodiment of the present disclosure]
Specific examples of vehicle lamps according to embodiments of the present disclosure will be described below with reference to the drawings. Note that the present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.
　なお、図１等に示すＵ、Ｄ、Ｆ、Ｂ、Ｒ、Ｌは車両用路面描画装置における方向を示すものであり、Ｕは上方、Ｄは下方、Ｆは前方、Ｂは後方、Ｒは右方、Ｌは左方である。 Note that U, D, F, B, R, and L shown in Figure 1 indicate directions in the vehicle road surface drawing device, where U is up, D is down, F is forward, B is backward, R is right, and L is left.
　図１は、本開示に係る車両用路面描画装置が搭載された車両の正面図である。以降の説明は、進行方向に向かって左側の車線を走行するように法律で規定された国または地域を走行する車両に搭載される車両用路面描画装置１を説明するが、本開示に係る車両用路面描画装置１はこれに限られない。本開示は、例えば進行方向に向かって右側の車線を走行するように法律で規定された国または地域を走行する車両に搭載される車両用路面描画装置に適用できる。 FIG. 1 is a front view of a vehicle equipped with a road surface drawing device for vehicles according to the present disclosure. The following description will explain a road surface drawing device for vehicles 1 that is equipped on vehicles that travel in countries or regions where the law requires vehicles to travel in the lane on the left side of the road as they travel, but the road surface drawing device for vehicles 1 according to the present disclosure is not limited to this. The present disclosure can be applied, for example, to a road surface drawing device for vehicles that is equipped on vehicles that travel in countries or regions where the law requires vehicles to travel in the lane on the right side of the road as they travel.
　図１を用いて、本実施形態に係る車両用路面描画装置１について詳述する。図１は実施形態に係る車両用路面描画装置１を搭載する車両１００の正面図である。 The vehicle road surface drawing device 1 according to this embodiment will be described in detail with reference to FIG. 1. FIG. 1 is a front view of a vehicle 100 equipped with a vehicle road surface drawing device 1 according to this embodiment.
　本実施形態において、車両１００は、曲る方向に向かって車体を傾ける（バンクする）ことで右左折する二輪車である。車両１００は、車両用路面描画装置１と、前照灯と、ターンシグナルランプ（ＴＳＬ）を搭載する。車両用路面描画装置１は左車両用路面描画装置１ａと右車両用路面描画装置１ｂを有し、前照灯は左前照灯１０ａと右前照灯１０ｂを有し、ＴＳＬは左ＴＳＬ１１ａと右ＴＳＬ１１ｂを有する。本実施形態において車両用路面描画装置１は、前照灯１０の内部に組み込まれている。なお図１においては車両用路面描画装置１、前照灯１０、ＴＳＬ１１が左右に設けられている車両１００について説明するが本開示はこれに限られない。 In this embodiment, the vehicle 100 is a two-wheeled vehicle that turns right or left by leaning (banking) the body in the direction of the turn. The vehicle 100 is equipped with a vehicle road surface drawing device 1, a headlight, and a turn signal lamp (TSL). The vehicle road surface drawing device 1 has a left vehicle road surface drawing device 1a and a right vehicle road surface drawing device 1b, the headlights have a left headlight 10a and a right headlight 10b, and the TSL has a left TSL 11a and a right TSL 11b. In this embodiment, the vehicle road surface drawing device 1 is incorporated inside the headlight 10. Note that in FIG. 1, a vehicle 100 in which the vehicle road surface drawing device 1, the headlight 10, and the TSL 11 are provided on the left and right sides will be described, but the present disclosure is not limited thereto.
　図２は左車両用路面描画装置１ａの断面図である。以降の説明においては、車両用路面描画装置１として左車両用路面描画装置１ａについて説明する。
　左車両用路面描画装置１ａは、アウタレンズ２と、ハウジング３と、インナレンズ４と、光源ユニット５を有している。アウタレンズ２とハウジング３によって灯室が形成され、光源ユニット５は灯室内部に設けられる。光源ユニット５はさらに第一光源６ａと、第二光源６ｂと、基板７を有する。第一光源６ａと第二光源６ｂは長尺の発光面を有し、基板上の異なる位置に設けられる。 2 is a cross-sectional view of the left vehicle road surface drawing device 1a. In the following description, the left vehicle road surface drawing device 1a will be described as an example of the vehicle road surface drawing device 1.
The road surface drawing device 1a for a left vehicle has an outer lens 2, a housing 3, an inner lens 4, and a light source unit 5. A lamp chamber is formed by the outer lens 2 and the housing 3, and the light source unit 5 is provided inside the lamp chamber. The light source unit 5 further has a first light source 6a, a second light source 6b, and a substrate 7. The first light source 6a and the second light source 6b have elongated light-emitting surfaces, and are provided at different positions on the substrate.
　次に、図３を用いて基板７上における第一光源６ａと第二光源６ｂの位置関係について詳述する。図３は実施形態に係る左車両用路面描画装置１ａの正面図である。図３に示すように、第一光源６ａは車両１００の正面視において、インナレンズ４の中心に設けられている。一方、第二光源６ｂは正面視において、第一光源６ａから離れた位置に設けられている。この時、第一光源６ａは第二光源６ｂと比べインナレンズ４の焦点位置に近い位置に設けられている。 Next, the positional relationship between the first light source 6a and the second light source 6b on the substrate 7 will be described in detail using Figure 3. Figure 3 is a front view of the left vehicle road surface drawing device 1a according to the embodiment. As shown in Figure 3, the first light source 6a is provided at the center of the inner lens 4 when viewed from the front of the vehicle 100. On the other hand, the second light source 6b is provided at a position away from the first light source 6a when viewed from the front. At this time, the first light source 6a is provided at a position closer to the focal position of the inner lens 4 than the second light source 6b.
　次に図４を用いて車両用路面描画装置１の制御形態について説明する。図４は実施形態に係る路面描画用灯具のブロック図である。
　車両用路面描画装置１は受信部２１と灯具制御部２２を有する。受信部２１は車両１００に搭載されるセンサ２０から車両１００のバンク角θについてのバンク角情報を取得し、灯具制御部２２に送信する。灯具制御部２２は、取得したバンク角情報に基づいて第一光源６ａ及び第二光源６ｂを制御する。以降、第一光源６ａが点灯することによって形成される描画パターンを右左折準備描画パターンＬ１、第二光源６ｂが点灯することによって形成される描画パターンを右左折時描画パターンＬ２と呼称する。 Next, a control mode of the vehicle road surface drawing device 1 will be described with reference to Fig. 4. Fig. 4 is a block diagram of a road surface drawing lamp according to the embodiment.
The vehicle road surface drawing device 1 has a receiving unit 21 and a lamp control unit 22. The receiving unit 21 acquires bank angle information about the bank angle θ of the vehicle 100 from a sensor 20 mounted on the vehicle 100, and transmits the bank angle information to the lamp control unit 22. The lamp control unit 22 controls the first light source 6a and the second light source 6b based on the acquired bank angle information. Hereinafter, the drawing pattern formed by turning on the first light source 6a will be referred to as a right/left turn preparation drawing pattern L1, and the drawing pattern formed by turning on the second light source 6b will be referred to as a right/left turn drawing pattern L2.
　図５Ａおよび図５Ｂは実施形態に係る車両用路面描画装置が搭載された車両の運転者から見た路面描画パターンを示す図である。
　以降の説明においては、車両１００のバンク角θは、車両１００が地面に対して直立している状態を０°とする。また、上述した所定範囲の最大値又は最小値の絶対値、つまり車両用路面描画装置１が右左折準備描画パターンＬ１の照射と右左折時描画パターンＬ２の照射を切り替える基準とするバンク角θの値を設定バンク角θｔｈと呼称する。 5A and 5B are diagrams showing a road surface drawing pattern as seen by a driver of a vehicle equipped with a vehicle road surface drawing device according to the embodiment.
In the following description, the bank angle θ of the vehicle 100 is defined as 0° when the vehicle 100 is upright with respect to the ground. The absolute value of the maximum or minimum value of the above-mentioned predetermined range, that is, the value of the bank angle θ based on which the vehicle road surface drawing device 1 switches between the irradiation of the right/left turn preparation drawing pattern L1 and the irradiation of the right/left turn drawing pattern L2, is referred to as the set bank angle θth .
　図５では車両１００として、車両１００のハンドル部分と地平線Ｇとを図示している。図５Ａは車両１００がバンクしていない状態、図５Ｂは車両１００が設定バンク角θｔｈを超えてバンクしている状態を示している。
　また、図５Ａおよび図５Ｂは、上下方向は常に車両本体を基準として描いている。そのため、図５Ａおよび図５Ｂにおいて車両１００がバンクしている状態は、地平線Ｇが車両１００に対して傾いた状態として示される。 5 illustrates the vehicle 100, including a handlebar portion of the vehicle 100 and the horizon G. Fig. 5A illustrates a state in which the vehicle 100 is not banked, and Fig. 5B illustrates a state in which the vehicle 100 is banked beyond the set bank angle θ th .
5A and 5B, the up-down direction is always drawn based on the vehicle body, so when the vehicle 100 is banked in the drawings, the horizon G is shown as being inclined with respect to the vehicle 100.
　図５Ａにおいて、車両１００はバンクしていないので、第一光源６ａを点灯させて右左折準備描画パターンＬ１を描画することで、視認しやすい描画パターンを形成することができる。 In FIG. 5A, the vehicle 100 is not banking, so by turning on the first light source 6a and drawing the right/left turn preparation drawing pattern L1, it is possible to form a drawing pattern that is easy to see.
　図５Ｂにおいて、車両１００は左側にバンクしているので、車両１００の左側面と地面の距離は図５Ａに示す状況と比べ短くなる。
　そこで本開示の路面描画装置１は、第二光源６ｂを点灯させ、右左折準備描画パターンＬ１とは異なる右左折時描画パターンＬ２を描画する。 In FIG. 5B, the vehicle 100 is banked to the left, so the distance between the left side of the vehicle 100 and the ground is shorter than in the situation shown in FIG. 5A.
Therefore, the road surface drawing device 1 of the present disclosure turns on the second light source 6b and draws a right/left turn drawing pattern L2 that is different from the right/left turn preparation drawing pattern L1.
　なお、図５Ｂに示す状況において、右左折時描画パターンＬ２の視認性をより向上させるため、右左折準備描画パターンＬ１と右左折時描画パターンＬ２とが成す角は設定バンク角θｔｈと等しくなるように構成されることが好ましい。具体的には図３に示すように、第一光源６ａの発光面の長手方向と第二光源６ｂの発光面の長手方向が成す角は設定バンク角θｔｈとなるように構成されている。
　ここで、「第一光源６ａの発光面の長手方向と第二光源６ｂの発光面の長手方向が成す角」は設定バンク角θｔｈと完全に一致していなくてもよく、最小値又は最大値から１０％の範囲も「成す角」に含まれる。 In the situation shown in Fig. 5B, in order to further improve the visibility of the drawing pattern L2 for right/left turns, it is preferable that the angle between the right/left turn preparation drawing pattern L1 and the drawing pattern L2 for right/left turns is configured to be equal to the set bank angle θth . Specifically, as shown in Fig. 3, the angle between the longitudinal direction of the light emitting surface of the first light source 6a and the longitudinal direction of the light emitting surface of the second light source 6b is configured to be the set bank angle θth .
Here, the "angle formed by the longitudinal direction of the light-emitting surface of the first light source 6 a and the longitudinal direction of the light-emitting surface of the second light source 6 b" does not have to be completely equal to the set bank angle θ th , and the "angle formed" also includes a range of 10% from the minimum or maximum value.
　次に図６、図７、図８を用いて実施形態に係る車両用路面描画装置１を搭載した車両１００の路面描画パターン形成方法を詳述する。図８は灯具制御部が第一光源６ａ及び第二光源６ｂを制御方法を示すフローチャートである。図６、図７においては、車両１００が左側を通行する例を示しているが、車両１００の走行位置はこれに限られない。 Next, a method for forming a road surface drawing pattern for a vehicle 100 equipped with a vehicle road surface drawing device 1 according to an embodiment will be described in detail with reference to Figures 6, 7, and 8. Figure 8 is a flowchart showing a method for the lamp control unit to control the first light source 6a and the second light source 6b. Figures 6 and 7 show an example in which the vehicle 100 travels on the left side, but the traveling position of the vehicle 100 is not limited to this.
　図６は本開示に係る車両用路面描画装置１を搭載した車両１００が交差点に差し掛かった状況を示している。図６に示す状況において車両１００が交差点で左折しようとし、左ＴＳＬ１１ａを点灯させた状況を考える。図６に示した状況では、車両１００はまだバンクを開始しておらず、車両１００のバンク角は所定範囲内（設定バンク角θｔｈ以下）である。 Fig. 6 shows a situation where the vehicle 100 equipped with the road surface drawing device for vehicle 1 according to the present disclosure approaches an intersection. Consider a situation where the vehicle 100 attempts to turn left at the intersection in the situation shown in Fig. 6 and turns on the left TSL 11a. In the situation shown in Fig. 6, the vehicle 100 has not yet started banking, and the bank angle of the vehicle 100 is within a predetermined range (equal to or less than the set bank angle θ th ).
　まず、灯具制御部２２はＴＳＬ信号を取得する（ＳＴＥＰ１）。灯具制御部２２は、ＴＳＬ信号がＯＮであると判定したら（ＳＴＥＰ２：ＹＥＳ）、車両１００のバンク角情報を取得する（ＳＴＥＰ３）。次に灯具制御部２２はバンク角θの絶対値が所定値（本実施形態においては設定バンク角θｔｈ）未満であるか否かを判定する（ＳＴＥＰ４）。図６に示す状況においては、車両１００のバンク角θは所定値未満であるので（ＳＴＥＰ４：ＹＥＳ）、灯具制御部２２は第一光源６ａを点灯させて右左折準備描画パターンＬ１を描画する（ＳＴＥＰ５）。
　なお、灯具制御部は第一光源６ａを点灯させた後も、バンク角が所定範囲内であり（ＳＴＥＰ４：ＹＥＳ）、ＴＳＬ信号がＯＮである限りは（ＳＴＥＰ７：ＮＯ）、第一光源６ａの点灯状態は変更されない。 First, the lamp control unit 22 acquires the TSL signal (STEP 1). If the lamp control unit 22 determines that the TSL signal is ON (STEP 2: YES), it acquires bank angle information of the vehicle 100 (STEP 3). Next, the lamp control unit 22 determines whether the absolute value of the bank angle θ is less than a predetermined value (in this embodiment, the set bank angle θ th ) (STEP 4). In the situation shown in Fig. 6, since the bank angle θ of the vehicle 100 is less than the predetermined value (STEP 4: YES), the lamp control unit 22 turns on the first light source 6a and draws the right/left turn preparation drawing pattern L1 (STEP 5).
Even after turning on the first light source 6a, the lighting control unit does not change the lighting state of the first light source 6a as long as the bank angle is within a predetermined range (STEP 4: YES) and the TSL signal is ON (STEP 7: NO).
　次に、車両１００が図６に示す状況から図７に示す状況に移行した場合を考える。図７は交差点で左折中の車両１００を示す俯瞰図である。図７は、図６の状況から車両１００が前進して実際に左折動作をしている状況を示している。図７において車両１００は左方に傾き、そのバンク角θは所定範囲外（設定バンク角θｔｈ以上）となっている。また、ＴＳＬ信号は依然としてＯＮである。 Next, consider a case where the vehicle 100 has transitioned from the situation shown in Fig. 6 to the situation shown in Fig. 7. Fig. 7 is an overhead view showing the vehicle 100 turning left at an intersection. Fig. 7 shows a situation in which the vehicle 100 advances from the situation in Fig. 6 and is actually turning left. In Fig. 7, the vehicle 100 is leaning to the left, and the bank angle θ is outside the predetermined range (greater than or equal to the set bank angle θ th ). Also, the TSL signal is still ON.
　この状況において、灯具制御部はバンク角情報を取得した後（ＳＴＥＰ３）、バンク角θが所定値以上となったと判定し（ＳＴＥＰ４：ＮＯ）、第一光源６ａの消灯及び第二光源６ｂの点灯を行う（ＳＴＥＰ６）。その後、灯具制御部は、再びＴＳＬ信号を取得する（ＳＴＥＰ７）。このとき、ＴＳＬ信号がＴＳＬ信号がＯＦＦであれば（ＳＴＥＰ７：ＹＥＳ）第一光源６ａ及び第二光源６ｂを消灯し（ＳＴＥＰ８）、ＯＮであれば（ＳＴＥＰ７：ＮＯ）、再びバンク角情報を取得する（ＳＴＥＰ３）。 In this situation, after acquiring the bank angle information (STEP 3), the lamp control unit determines that the bank angle θ is equal to or greater than a predetermined value (STEP 4: NO), and turns off the first light source 6a and turns on the second light source 6b (STEP 6). The lamp control unit then acquires the TSL signal again (STEP 7). At this time, if the TSL signal is OFF (STEP 7: YES), the first light source 6a and the second light source 6b are turned off (STEP 8), and if it is ON (STEP 7: NO), the bank angle information is acquired again (STEP 3).
　次に、車両１００のバンク角θと、ＴＳＬ、第一光源６ａ、第二光源６ｂの点灯状態との関係を図９及び図１０にグラフとして示す。
　図９に示すように、第一光源６ａはＴＳＬの点灯とともに点灯し、車両１００のバンク角θが設定バンク角θｔｈ以上となった時消灯する。また、第二光源６ｂは車両１００のバンク角θが設定バンク角θｔｈとなった時に点灯し、車両１００のバンク角θが設定バンク角θｔｈ以下となった時消灯する。このとき、ＴＳＬが点灯中であれば、第二光源６ｂの消灯とともに第一光源６ａが点灯する。 Next, the relationship between the bank angle θ of the vehicle 100 and the lighting states of the TSL, the first light source 6a, and the second light source 6b is shown in graphs in FIGS.
9, the first light source 6a is turned on when the TSL is turned on, and is turned off when the bank angle θ of the vehicle 100 becomes equal to or larger than the set bank angle θth . The second light source 6b is turned on when the bank angle θ of the vehicle 100 becomes equal to the set bank angle θth , and is turned off when the bank angle θ of the vehicle 100 becomes equal to or smaller than the set bank angle θth . At this time, if the TSL is turned on, the first light source 6a is turned on together with the second light source 6b being turned off.
　また、図１０に示すように、車両１００のＴＳＬが点灯中に、バンク角θが一度設定バンク角θｔｈ以上となった後、設定バンク角θｔｈ以下となった場合、車両１００は既に交差点内に進入している状態である。図１０に示す状況において第一光源６ａは、第二光源６ｂが消灯したとしても点灯しない構成であってもよい。 10, when the bank angle θ of the vehicle 100 becomes equal to or larger than the set bank angle θth once while the TSL of the vehicle 100 is on, and then becomes equal to or smaller than the set bank angle θth , the vehicle 100 has already entered the intersection. In the situation shown in FIG. 10, the first light source 6a may be configured not to be turned on even if the second light source 6b is turned off.
　従来の車両用路面描画装置においては、曲がる方向に向かって車体を傾けることで右左折する車両に車両用路面描画装置を設ける場合、右左折時のバンクにより描画パターンが崩れることが考えられる。 In conventional road surface drawing devices for vehicles, if the device is installed on a vehicle that turns right or left by tilting the body in the direction of the turn, the drawing pattern may be disrupted by the banking when turning right or left.
　ところで、二輪車が旋回する場合にはカーブの曲率や走行速度に応じて様々なバンク角を取るが、交差点などでの右左折時には道路の曲率や走行速度は一定の範囲内であるのでバンク角は一定の範囲内で変化する。そこで、カーブ走行などの旋回時ではなく、右左折時に路面描画をする際には２種類の配光パターンを用意し、これをバンク角に応じて使い分けることで視認性のよい路面描画を提供できることに本発明者は気が付いた。 When a motorcycle turns, it takes on various bank angles depending on the curvature of the curve and the traveling speed, but when turning right or left at an intersection, the road curvature and traveling speed are within a certain range, so the bank angle changes within a certain range. Therefore, the inventor realized that by preparing two types of light distribution patterns when drawing the road surface when turning right or left, rather than when turning around a curve, and using them depending on the bank angle, it is possible to provide road surface drawing with good visibility.
　そこで本開示に係る路面描画装置においては、右左折時にバンク角が所定範囲内であれば直線時描画パターンを照射し、右左折時にバンク角が所定範囲外であれば右左折時描画パターンを照射することとした。これにより、二輪車の右左折時での視認性のよい路面描画を提供できる。 In view of this, the road surface drawing device disclosed herein projects a straight line drawing pattern when turning right or left if the bank angle is within a specified range, and projects a right or left turn drawing pattern when the bank angle is outside the specified range. This makes it possible to provide a road surface drawing with good visibility when turning right or left on a motorcycle.
　例えば、図５Ａに示す状況においては、車両１００はバンクしていないので、灯具制御部２２は第一光源６ａを点灯させ、右左折準備描画パターンＬ１を描画することで、視認しやすい描画パターンを形成することができる。 For example, in the situation shown in FIG. 5A, the vehicle 100 is not banking, so the lamp control unit 22 turns on the first light source 6a and draws the right/left turn preparation drawing pattern L1, thereby forming a drawing pattern that is easy to see.
　一方、図５Ｂに示す状況においては、車両１００は設定バンク角θｔｈを超えてバンクしている。この状況において、図５Ｂに示す状況において第一光源６ａを点灯させ、右左折準備描画パターンＬ１を描画すると、車両１００の下部に右左折準備描画パターンＬ１が形成されてしまい、描画パターンの視認性が悪くなる。 On the other hand, in the situation shown in Fig. 5B, the vehicle 100 is banked beyond the set bank angle θ th . In this situation, if the first light source 6a is turned on and the right/left turn preparation drawing pattern L1 is drawn in the situation shown in Fig. 5B, the right/left turn preparation drawing pattern L1 is formed below the vehicle 100, and the visibility of the drawing pattern is reduced.
　そこで本実施形態においては、図５Ｂに示す状況において、第二光源６ｂを点灯させ、右左折時描画パターンＬ２を描画する。該状況下では車両１００と地面Ｇの距離が近くなっているため、右左折時描画パターンＬ２は右左折準備描画パターンＬ１と比べ視認しやすい位置に描画される。 In this embodiment, in the situation shown in FIG. 5B, the second light source 6b is turned on and the drawing pattern L2 for right/left turns is drawn. In this situation, the distance between the vehicle 100 and the ground G is close, so the drawing pattern L2 for right/left turns is drawn in a position that is easier to see than the drawing pattern L1 for preparing to right/left turns.
　なお、上述した課題の解決方法として、車両のバンク角をセンサ等によって測定し、車両用灯具をスイブル機構、レベリング機構等によって回転させ、描画パターンをバンク角に追従させることが考えられる。しかし、上述したような機構は車両用路面描画装置の大型化や、コストの上昇等が懸念される。
　本開示の車両用路面描画装置によれば、光源ユニット５は、基板７上の異なる位置に設けられる第一光源６ａと第二光源６ｂを有している。これにより、スイブル機構などの機械的な構造を用いることなく、右左折準備用及び右左折時用の複数の路面描画パターンを形成することができる。つまり、本開示に係る車両用路面描画装置によれば、簡易な構造で車両がバンクした際にも視認しやすい描画パターンを形成することができる。 As a method for solving the above-mentioned problem, it is conceivable to measure the bank angle of the vehicle with a sensor or the like, rotate the vehicle lamp with a swivel mechanism, leveling mechanism, or the like, and make the drawing pattern follow the bank angle. However, there are concerns that such a mechanism may increase the size of the vehicle road surface drawing device, increase costs, and the like.
According to the road surface drawing device for a vehicle of the present disclosure, the light source unit 5 has a first light source 6a and a second light source 6b provided at different positions on the substrate 7. This makes it possible to form a plurality of road surface drawing patterns for preparing to turn right or left and for turning right or left without using a mechanical structure such as a swivel mechanism. In other words, according to the road surface drawing device for a vehicle of the present disclosure, it is possible to form a drawing pattern that is easy to see even when the vehicle banks, with a simple structure.
　また、図３に示すように第一光源６ａとインナレンズ４の焦点との距離は、第二光源６ｂとインナレンズ４の焦点との距離よりも小さい。さらに、第一光源６ａの発光面の長手方向と第二光源６ｂの発光面長手方向が成す角はバンク角θの所定範囲の最大値又は最小値の絶対値（上述した実施形態では設定バンク角θｔｈ）に設定されている。これにより、第一光源６ａが点灯することによって形成される右左折準備描画パターンＬ１の長手方向と、第二光源６ｂが点灯することによって形成される右左折時描画パターンＬ２の長手方向とが成す角を設定バンク角θｔｈとすることができる。 3, the distance between the first light source 6a and the focal point of the inner lens 4 is smaller than the distance between the second light source 6b and the focal point of the inner lens 4. Furthermore, the angle between the longitudinal direction of the light emitting surface of the first light source 6a and the longitudinal direction of the light emitting surface of the second light source 6b is set to the absolute value of the maximum or minimum value of a predetermined range of the bank angle θ (the set bank angle θ th in the above-mentioned embodiment). As a result, the angle between the longitudinal direction of the right/left turn preparation drawing pattern L1 formed by turning on the first light source 6a and the longitudinal direction of the right/left turn drawing pattern L2 formed by turning on the second light source 6b can be set to the set bank angle θ th .
　右左折時にバンクを伴う車両において、交差点を右左折する際の車両の速度はおおよそ一定（１０～２０ｋｍ／ｈ）であるため、車両のバンク角に関してもおおよそ一定となる。そのため、本開示の車両用灯具においては第一光源６ａの発光面の長手方向と第二光源６ｂの発光面の長手方向がなす角度をあらかじめ車両１００が右左折時にバンクすると予測される角度とする。これにより右左折時においては右左折時描画パターンＬ２を、車両１００がバンクすると予測される角度（設定バンク角θｔｈ）だけずらして照射することができる。これにより、右左折時においても、視認しやすい描画パターンを形成することができる。 In a vehicle that requires a bank when turning right or left, the speed of the vehicle when turning right or left at an intersection is approximately constant (10 to 20 km/h), so the bank angle of the vehicle is also approximately constant. Therefore, in the vehicle lamp of the present disclosure, the angle between the longitudinal direction of the light-emitting surface of the first light source 6a and the longitudinal direction of the light-emitting surface of the second light source 6b is set to an angle that is predicted in advance for the vehicle 100 to bank when turning right or left. As a result, when turning right or left, the drawing pattern L2 for turning right or left can be emitted by shifting it by the angle (set bank angle θ th ) that is predicted for the vehicle 100 to bank. As a result, a drawing pattern that is easy to see can be formed even when turning right or left.
　なお、本開示に係る車両用路面描画装置は上述したものに限られない。例えば一つの車両用路面描画装置によって、右折時、左折時の両方の描画パターンを形成する構成であってもよい。上記構成は、一つの車両用路面描画装置内に３つ以上の光源を設けることによってなされていてもよい。 Note that the road surface drawing device for vehicles according to the present disclosure is not limited to the above. For example, a single road surface drawing device for vehicles may be configured to form drawing patterns for both right turns and left turns. The above configuration may be achieved by providing three or more light sources within a single road surface drawing device for vehicles.
　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、特許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特許請求の範囲に記載された発明の範囲及びその均等の範囲に基づいて定められるべきである。 The above describes an embodiment of the present disclosure, but it goes without saying that the technical scope of the present disclosure should not be interpreted as being limited by the description of this embodiment. This embodiment is merely an example, and it will be understood by those skilled in the art that various modifications of the embodiment are possible within the scope of the invention described 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 its equivalents.
　本出願は、２０２３年１月２５日出願の日本特許出願２０２３－００９５４８号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. 2023-009548, filed on January 25, 2023, the contents of which are incorporated herein by reference.

Claims (4)

  1. 　曲がる方向に向かって車体を傾けることで右左折する車両に設けられる車両用路面描画装置であって、前記車両用路面描画装置は、
    　光源ユニットを有し、
    　前記光源ユニットは、
    　右左折時にバンク角が所定範囲内であれば右左折準備描画パターンを照射し、
    　右左折時にバンク角が所定範囲外であれば右左折時描画パターンを照射する、
    　車両用路面描画装置。     A road surface drawing device for a vehicle is provided on a vehicle that turns right or left by tilting a body toward a turning direction, the road surface drawing device for a vehicle comprising:
    A light source unit is provided.
    The light source unit includes:
    When turning right or left, if the bank angle is within a specified range, a right or left turn preparation drawing pattern is projected,
    If the bank angle is outside a specified range when turning right or left, a drawing pattern is projected when turning right or left.
    Road surface drawing device for vehicles.
  2. 　前記車両用路面描画装置は、前記光源ユニットを制御する光源制御部と、ターンシグナルを点消灯させる信号を受信する受信部を有し、
    　前記光源制御部は、前記受信部が前記信号を受信したときに、
    　右左折時にバンク角が所定範囲内であれば右左折準備描画パターンを照射し、
    　右左折時にバンク角が所定範囲外であれば右左折時描画パターンを照射するように、
    　前記光源ユニットを制御する、
    　請求項１に記載の車両用路面描画装置。     The vehicle road surface drawing device includes a light source control unit that controls the light source unit, and a receiving unit that receives a signal to turn on and off a turn signal,
    When the receiving unit receives the signal, the light source control unit
    When turning right or left, if the bank angle is within a specified range, a right or left turn preparation drawing pattern is projected,
    If the bank angle is outside the specified range when turning right or left, the drawing pattern for turning right or left is projected.
    Controlling the light source unit;
    2. The vehicle road surface drawing device according to claim 1.
  3. 　前記光源ユニットは、
    　インナレンズと、第一光源と、第二光源と、前記インナレンズと向かい合う基板を有し、
    　前記第一光源と前記第二光源は前記基板上の異なる位置に設けられる、請求項１に記載の車両用路面描画装置。     The light source unit includes:
    The optical element includes an inner lens, a first light source, a second light source, and a substrate facing the inner lens;
    The road surface drawing device for a vehicle according to claim 1 , wherein the first light source and the second light source are provided at different positions on the substrate.
  4. 　前記第一光源と前記インナレンズの焦点との距離は、前記第二光源と前記インナレンズの焦点との距離よりも小さく、
    　前記第一光源と前記第二光源は長手方向に延びる長尺の発光面を有し、
    　前記第一光源の発光面の長手方向と前記第二光源の発光面の長手方向とが成す角は、前記所定範囲の最大値又は最小値の絶対値である、
    　請求項３に記載の車両用路面描画装置。     a distance between the first light source and a focal point of the inner lens is smaller than a distance between the second light source and a focal point of the inner lens;
    The first light source and the second light source each have a light-emitting surface that extends in a longitudinal direction,
    an angle between a longitudinal direction of a light-emitting surface of the first light source and a longitudinal direction of a light-emitting surface of the second light source is an absolute value of a maximum value or a minimum value of the predetermined range;
    4. The vehicle road surface drawing device according to claim 3.
PCT/JP2024/002085 2023-01-25 2024-01-24 Road surface drawing device for vehicles WO2024158015A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005306337A (en) * 2004-04-26 2005-11-04 Denso Corp Information display device for mobile body
JP2008001305A (en) * 2006-06-26 2008-01-10 Koito Mfg Co Ltd Headlight system for motorcycle
JP2016193689A (en) * 2015-04-01 2016-11-17 株式会社小糸製作所 Drawing device for vehicle
JP2017074820A (en) * 2015-10-13 2017-04-20 スズキ株式会社 Notification system for vehicle
WO2019044404A1 (en) * 2017-09-01 2019-03-07 株式会社小糸製作所 Vehicular illumination system, vehicle system, light fixture unit, and vehicular light fixture

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005306337A (en) * 2004-04-26 2005-11-04 Denso Corp Information display device for mobile body
JP2008001305A (en) * 2006-06-26 2008-01-10 Koito Mfg Co Ltd Headlight system for motorcycle
JP2016193689A (en) * 2015-04-01 2016-11-17 株式会社小糸製作所 Drawing device for vehicle
JP2017074820A (en) * 2015-10-13 2017-04-20 スズキ株式会社 Notification system for vehicle
WO2019044404A1 (en) * 2017-09-01 2019-03-07 株式会社小糸製作所 Vehicular illumination system, vehicle system, light fixture unit, and vehicular light fixture

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