JP7357828B2 - Motorcycle lights - Google Patents

Description

The present disclosure relates to a two-wheeled vehicle lamp.

In the headlamp system mounted on a saddle-riding vehicle described in Patent Document 1, which is one of two-wheeled vehicle lights, when cornering, the illumination range of the low beam light is reduced due to the vehicle body banking in the left and right direction. An object of the present invention is to realize a preferable light distribution even when the headlamp system changes, while suppressing an increase in the size of the headlamp system. For this purpose, in the headlamp system, a sublamp unit including a plurality of sublamps is arranged to supplement the light distribution of the headlamp unit.

Japanese Patent Application Publication No. 2016-064723

However, in the above-mentioned headlamp system, the left sub-lamp unit is arranged to the left and upper rear of the above-mentioned headlamp unit, and similarly, the right-hand sub-lamp unit is arranged to the right of the above-mentioned headlamp unit. Since the sub-lamp units are arranged at the top and rear, a relatively large space had to be secured for arranging both of the above-mentioned sub-lamp units.

An object of the present disclosure is to provide a motorcycle lamp that reduces the deterioration of visibility caused by cornering while suppressing the size of the space in which a structure for reducing the visibility is disposed.

In order to solve the above problems, a motorcycle lamp according to the present disclosure includes a first light source that generates a first light, and a condenser lens that condenses the first light generated by the first light source. a reflective surface that reflects the first light condensed by the condensing lens in order to illuminate the area below the cut-off line in the forward light distribution of the two-wheeled vehicle, and a first light reflected by the reflective surface. a projection lens having an output surface that outputs light to the front of the two-wheeled vehicle; a second light source that generates a second light; and a projection lens that illuminates an area above the cutoff line in the light distribution. A mechanism disposed in a space that exists on the side opposite to the reflective surface, the mechanism having an incident surface on which the second light generated by the second light source enters, and a mechanism that includes and a reflective surface that reflects the second light toward the front of the two-wheeled vehicle.

According to the motorcycle lamp according to the present disclosure, deterioration of visibility due to cornering can be reduced while suppressing the size of the space in which the reduction structure is arranged.

FIG. 1A is a perspective perspective view showing the configuration (part 1) of the motorcycle lamp NT according to the first embodiment. FIG. 1B is a perspective perspective view showing the configuration (part 2) of the motorcycle lamp NT of the first embodiment. FIG. 3 is a side perspective view showing an optical path of a low beam LB of the motorcycle lamp NT according to the first embodiment. FIG. 3A is a side perspective view showing the optical path of the auxiliary beam HB of the motorcycle lamp NT according to the first embodiment. FIG. 3B is a bottom perspective view showing the optical path of the auxiliary beam HB of the motorcycle lamp NT according to the first embodiment. The light distribution HK, the cutoff line CL, and the upper left region JR (H) of the first embodiment are shown. FIG. 3 is a perspective perspective view showing the configuration of a motorcycle lamp NT according to a second embodiment. 7 shows the configuration of a control unit of a motorcycle lamp NT according to a third embodiment. Table TB of Embodiment 3 is shown. The operation of the motorcycle lamp NT according to the third embodiment is shown when the motorcycle travels on a straight road. FIG. 9A shows the operation (part 1) of the motorcycle lamp NT according to the third embodiment when the motorcycle runs on a curved road. FIG. 9B shows the operation (part 2) of the motorcycle lamp NT according to the third embodiment when the motorcycle travels on a curved road. FIG. 9C shows the operation (part 3) of the motorcycle lamp NT according to the third embodiment when the motorcycle travels on a curved road. The table TBL of Embodiment 4 is shown. FIG. 7 is a transparent perspective view showing the configuration of a motorcycle lamp NT according to a fifth embodiment. The light distribution HK, cut-off line CL, and upper right region JR (M) of Embodiment 5 are shown. FIG. 7 is a side view showing the configuration of a motorcycle lamp NT according to a sixth embodiment. FIG. 7 is a transparent perspective view showing the configuration of a motorcycle lamp NT according to a seventh embodiment.

An embodiment of a motorcycle lamp according to the present disclosure will be described.
Embodiment 1.
<Embodiment 1>
The motorcycle lamp NT of Embodiment 1 will be described.

FIG. 1 is a perspective perspective view showing the configuration of a motorcycle lamp NT according to a first embodiment.

FIG. 2 is a side perspective view showing the optical path of the low beam LB of the motorcycle lamp NT according to the first embodiment.

FIG. 3 is a side perspective view and a bottom perspective view showing the optical path of the auxiliary beam HB of the motorcycle lamp NT according to the first embodiment.

FIG. 4 shows the light distribution HK, the cutoff line CL, and the upper left region JR(H) of the first embodiment.

The configuration and operation of the motorcycle lamp NT according to the first embodiment will be described with reference to FIGS. 1 to 4.

The motorcycle lamp NT of Embodiment 1 is mounted on a motorcycle (not shown) such as a motorcycle and a scooter, and as shown in FIGS. 1A and 1B, it includes a light source KG, a condenser lens SL, and a projection lens. It includes a lens TL, an auxiliary light source HKG, and an auxiliary mechanism HKK. The auxiliary light source HKG and the auxiliary mechanism HKK shown in FIG. 1B illuminate the upper left side with respect to the traveling direction of the two-wheeled vehicle. This configuration is particularly desirable on left-hand roads.

The light source KG corresponds to a "first light source," the condenser lens SL corresponds to a "condenser lens," the projection lens TL corresponds to a "projection lens," and the auxiliary light source HKG corresponds to a "second light source." The auxiliary mechanism HKK corresponds to the "light source", and the auxiliary mechanism HKK corresponds to the "mechanism".

The light source KG, the condenser lens SL, and the projection lens TL cooperate with each other to form the low beam LB shown in FIG. 2.

Regarding the positional relationship between the light source KG, the condenser lens SL, and the projection lens TL, as shown in FIGS. 1A and 1B, the condenser lens SL is provided on the projection lens TL, and the condenser lens SL is provided on the condenser lens SL, and A light source KG is provided.

The auxiliary light source HKG and the auxiliary mechanism HKK cooperate with each other to create a left side auxiliary beam HB (hereinafter simply referred to as "left side") for the left side in the traveling direction of the two-wheeled vehicle, as shown in FIGS. 3A and 3B. H) is formed.

Regarding the positional relationship between the auxiliary light source HKG and the auxiliary mechanism HKK, as shown in FIG. 1B, the auxiliary light source HKG is provided at a position separated from the entrance plane NM (HKK) of the auxiliary mechanism HKK.

Light source KG generates first light H1 for low beam LB, as shown in FIG.

The condensing lens SL condenses the first light H1 generated by the light source KG, as shown in FIG.

The projection lens TL is configured to reflect light in order to illuminate the area below the cut-off line CL (for example, shown in FIG. 4) in the light distribution HK (for example, shown in FIG. 4) toward the front of the motorcycle (in the + direction of the Y-axis). It has a surface HM (TL) and an output surface SM (TL).

As shown in FIG. 2, the reflective surface HM (TL) reflects the first light H1 collected by the condenser lens SL. The output surface SM (TL) outputs the first light H1 reflected by the reflection surface HM (TL) to the front of the two-wheeled vehicle (in the + direction of the Y-axis).

As shown in FIG. 2, the projection lens TL directs the first light H1 incident on the projection lens TL and the first light H1 emitted from the projection lens TL, that is, the low beam LB, in the Z-axis direction. Invert about. For example, when the first light H1a enters the reflective surface HM (TL) of the projection lens TL at a high position in the Z-axis direction, it enters the reflection surface HM (TL) of the projection lens TL at a low position in the Z-axis direction from the exit surface SM (TL) of the projection lens TL. , is emitted as a low beam LBa.

In contrast to the above, as shown in FIG. 2, when the first light H1c enters the reflection surface HM (TL) of the projection lens TL at a low position in the Z-axis direction, the first light H1c enters the reflection surface HM (TL) of the projection lens TL at a low position in the Z-axis direction. The low beam LBc is emitted from the SM (TL) at a high position in the Z-axis direction.

As shown in FIG. 2, the first light H1b between the first light H1a and the first light H1c is applied to the reflective surface HM (TL) of the projection lens TL in the Z-axis direction. When the first light H1a is incident at a position between the incident position and the first light H1c is incident, the low beam LBa is emitted from the exit surface SM (TL) of the projection lens TL in the Z-axis direction. It is emitted as a low beam LBb at a position between the emitted position of the low beam LBc.

The above-mentioned function of the projection lens TL in which the position of the incident light and the position of the emitted light are reversed in the Z-axis direction is the same for the second light H2.

As shown in FIG. 1B, the auxiliary light source HKG includes a first light emitting element HS1, a second light emitting element HS2, and a third light emitting element HS3. The first light emitting element HS1 to the third light emitting element HS3 are arranged from top to bottom along the Z-axis direction, that is, along the vertical direction of the two-wheeled vehicle: the first light emitting element HS1, the second light emitting element HS2, They are arranged in the order of the third light emitting element HS3. The auxiliary light source HKG generates the second light H2 for the left auxiliary beam HB(H), as shown in FIG. 3B.

As shown in FIG. 4, the auxiliary mechanism HKK is located in the upper left area, which is the area on the left side in the traveling direction of the two-wheeled vehicle, of the area located above the cutoff line CL in the light distribution HK (hereinafter referred to as the "upper area"). In order to irradiate the region JR (H), as shown in FIGS. 1A and 1B, a space KK exists on the side of the back surface RM (TL), which is the surface opposite to the reflective surface HM (TL) of the projection lens TL. It is located in

More specifically, as shown in FIG. 3B, the auxiliary mechanism HKK is located not on the optical axis KJ of the projection lens TL but on the optical axis KJ of the projection lens TL in order to form the left auxiliary beam HB (H) in the space KK. It is arranged at a position separated from KJ by a distance d1 in the + direction of the X axis.

The auxiliary mechanism HKK has an entrance surface NM (HKK) and a reflection surface HM (HKK), as shown in FIGS. 1B and 3B. The entrance surface NM (HKK) receives the second light H2 generated by the auxiliary light source HKG, as shown in FIG. 3B. As shown in FIG. 3B, the reflective surface HM (HKK) reflects the second light H2 that has entered from the incident surface NM (HKK) toward the front of the two-wheeled vehicle (in the + direction of the Y-axis).

As described above, in the motorcycle lamp NT of Embodiment 1, as shown in FIGS. 1A and 1B, the auxiliary mechanism HKK is connected to the back surface RM (which is the surface opposite to the reflective surface HM (TL) of the projection lens TL). It is provided in a space KK located below TL). Thereby, the auxiliary mechanism HKK can illuminate the upper left region JR(H) in cooperation with the auxiliary light source HKG, as shown in FIG. 4. In addition to the above effects, the motorcycle lamp NT of the first embodiment does not require a separate space for arranging the auxiliary mechanism HKK. This makes it possible to make the motorcycle lamp NT of the first embodiment smaller in size compared to a conventional motorcycle lamp that requires a separate space for arranging a sub-lamp unit.

<Modified example>
Unlike the motorcycle lamp NT of Embodiment 1, which is suitable for roads with left-hand traffic, as described above, the auxiliary light source HKG and the auxiliary mechanism HKK are arranged in the − direction of the X-axis with respect to the optical axis KJ illustrated in FIG. 3B. By arranging them at positions separated by the distance d1, it becomes suitable for roads where traffic is on the right side.

Embodiment 2.
<Embodiment 2>
A motorcycle lamp NT according to a second embodiment will be described.

The motorcycle lamp NT of the second embodiment is characterized by the curvature of the exit surface SM (TL) of the projection lens TL.

FIG. 5 is a perspective perspective view showing the configuration of the motorcycle lamp NT according to the second embodiment.

The two-wheeled vehicle lamp NT of the second embodiment basically has the same configuration as the two-wheeled vehicle lamp NT of the first embodiment (shown in FIGS. 1 to 3).

In the projection lens TL of Embodiment 2, as shown in FIG. curvature in the vertical direction). More specifically, the exit surface SM (TL) has a curvature in the Z-axis direction, so it is a curved surface, but in the X-axis direction, it has substantially no curvature, so it is a flat surface. It is.

As described above, in the motorcycle lamp NT of the second embodiment, the curvature of the emission surface SM (TL) in the left-right direction of the two-wheeled vehicle is smaller than the curvature of the emission surface SM (TL) in the vertical direction of the two-wheeled vehicle. Thereby, the projection lens TL directs the second light H2 from the auxiliary light source HKG, in other words, for example, the left auxiliary beam HB(H) (both shown in FIGS. 3A and 3B, for example) to the two-wheeled vehicle. The light is illuminated so as to spread in the X-axis direction in front of the two-wheeled vehicle, that is, in the left-right direction in front of the two-wheeled vehicle. As a result, for example, the left side auxiliary beam HB (H) is suppressed from spreading in the Z-axis direction in front of the two-wheeled vehicle, that is, in order to suppress spreading in the vertical direction in front of the two-wheeled vehicle, the longitudinal direction is the X-axis direction. The second light H2 generated by the auxiliary light source HKG can be used efficiently in accordance with the shape of the upper left region JR(H) (for example, shown in FIG. 4).

Embodiment 3.
<Embodiment 3>
The motorcycle lamp NT of Embodiment 3 will be described.

The motorcycle lamp NT of Embodiment 3 is characterized in that the first to third light emitting elements HS1 to HS3 constituting the auxiliary light source HKG turn on or off depending on the bank angle of the motorcycle when cornering. shall be.

The motorcycle lamp NT of the third embodiment basically has the same configuration as the motorcycle lamp NT of the first embodiment (shown in FIGS. 1 to 3).

In the motorcycle lamp NT of Embodiment 3, in particular, as described in Embodiment 1 with reference to FIG. From the bottom, the first light emitting element HS1, the second light emitting element HS2, and the third light emitting element HS3 are arranged in this order.

FIG. 6 shows the configuration of a control unit of the motorcycle lamp NT according to the third embodiment.

The motorcycle lamp NT of the third embodiment includes a control unit SY to turn on or turn off the first to third light emitting elements HS1 to HS3 according to the bank angle of the motorcycle.

As shown in FIG. 6, the control unit SY includes an acceleration sensor KS, a processor PC, and a storage medium KB. The storage medium KB stores a table TB.

The processor PC lights up the first light emitting element HS1 to the third light emitting element HS3 by referring to the table TB stored in the storage medium KB based on the bank angle of the two-wheeled vehicle detected by the acceleration sensor KS. , or turn off.

FIG. 7 shows the table TB of the third embodiment.

As shown in FIG. 7, the table TB shows the bank angle of the motorcycle and the brightness of the first to third light emitting elements HS1 to HS3 for the first to third light emitting elements HS1 to HS3. Show relationships.

The first light emitting element HS1 to the third light emitting element HS3 are switched on or off based on the bank angles being θ1, θ2, and θ3, respectively.

More specifically, as shown in FIG. 7, when the bank angle is increasing, the first light emitting element HS1 starts lighting from the off state when the bank angle reaches θ1, and as the bank angle increases. The brightness is gradually increased until it reaches θ2. On the other hand, when the bank angle is decreasing, the first light emitting element HS1 gradually reduces the brightness when the bank angle becomes less than θ2, and stops lighting when the bank angle reaches θ1, Returns to unlit state.

As shown in FIG. 7, when the bank angle is increasing, the second light emitting element HS2 starts lighting from the off state when the bank angle reaches θ2, and the bank angle becomes θ3. Gradually increase the brightness until On the other hand, when the bank angle is decreasing, the second light emitting element HS2 gradually reduces the brightness when the bank angle becomes less than θ3, and stops lighting when the bank angle reaches θ2, Returns to unlit state.

As shown in FIG. 7, when the bank angle is increasing, the third light emitting element HS3 starts lighting from the off state when the bank angle reaches θ3, and the bank angle becomes θ4. Gradually increase the brightness until On the other hand, when the bank angle is decreasing, the third light emitting element HS3 gradually reduces the brightness when the bank angle becomes less than θ4, and stops lighting when the bank angle reaches θ3, Returns to unlit state.

FIG. 8 shows the operation of the motorcycle lamp NT according to the third embodiment when the motorcycle travels on a straight road.

FIG. 9 shows the operation of the motorcycle lamp NT according to the third embodiment when the motorcycle travels on a curved road.

As shown in FIG. 8, when the two-wheeled vehicle is running on a straight road, the light source KG, the condenser lens SL, and the projection lens TL (all shown in FIG. 2, for example) cooperate to provide a low beam. By irradiating LB (shown in FIG. 2), a light distribution HK is formed as shown in FIG.

As shown in FIG. 9A, when the two-wheeled vehicle is traveling on a curved road, as shown in FIG. 7, when the bank angle increases and reaches θ1, the first light emitting element HS1 Start lighting and gradually increase brightness. As a result, as shown in FIG. 9A, the first left upper region JR1 (H) located above the cut-off line CL is irradiated.

As shown in FIG. 9B, when the two-wheeled vehicle is traveling on a curved road, the bank angle increases as shown in FIG. 7, and when it exceeds θ1 and reaches θ2, the second The light emitting element HS2 starts lighting and gradually increases its brightness. As a result, as shown in FIG. 9B, the second upper left region JR2 (H) located above the first upper left region JR1 (H) is irradiated.

As shown in FIG. 9C, when the motorcycle is traveling on a curved road, the bank angle increases as shown in FIG. 7, exceeds θ1 and θ2, and reaches θ3, when the bank angle The light emitting element HS3 of No. 3 starts lighting and gradually increases its brightness. As a result, as shown in FIG. 9C, the third left upper region JR3 (H) located above the second left upper region JR2 (H) is irradiated.

When the bank angle decreases, the operation described above is reversed.

For example, the third light emitting element HS3 gradually decreases its brightness when the bank angle begins to decrease, as shown in FIG. Thereby, the third light emitting element HS3 ends lighting when the bank angle reaches θ3.

Similarly, the second light emitting element HS2 gradually decreases its brightness when the bank angle reaches θ3, as shown in FIG. Thereby, the second light emitting element HS2 ends lighting when the bank angle reaches θ2.

Furthermore, similarly, the first light emitting element HS1 gradually decreases its brightness when the bank angle reaches θ2, as shown in FIG. Thereby, the first light emitting element HS1 ends lighting when the bank angle reaches θ1.

As described above, in the motorcycle lamp NT of Embodiment 3, one of the first upper left region JR1 (H) to the third upper left region JR3 (H) depending on the size of the bank angle. By irradiating the above, it is possible to secure the visibility necessary for driving, regardless of the size of the bank angle.

<Modified example>
As described above with reference to FIG. 7, the first light emitting element HS1 becomes brighter immediately when the bank angle increases and reaches θ1, instead of gradually becoming brighter as the bank angle increases from θ1 to θ2. It may go from off to on, ie 100% brightness. Similarly, the second light emitting element HS2 may immediately reach 100% brightness when the bank angle reaches θ2, and the third light emitting element HS3 may immediately become 100% bright when the bank angle reaches θ3. Sometimes, the brightness may reach 100% immediately.

In contrast to the above, the third light emitting element HS3 may immediately turn off from on, ie, have a brightness of 0%, when the bank angle decreases and reaches θ3. Similarly, the second light emitting element HS2 may immediately become 0% bright when the bank angle reaches θ2, and the first light emitting element HS1 may immediately become 0% bright when the bank angle reaches θ1. Sometimes, the brightness may be reduced to 0% immediately.

Embodiment 4.
<Embodiment 4>
A motorcycle lamp NT according to a fourth embodiment will be described.

<Configuration of Embodiment 4>
The motorcycle lamp NT of the fourth embodiment is characterized in that the speed at which the first to third light emitting elements HS1 to HS3 constituting the auxiliary light source HKG turn on is faster than the speed at which they turn off.

The motorcycle lamp NT of the fourth embodiment includes an acceleration sensor KS, a processor PC, and a storage medium KB, similarly to the third embodiment (shown in FIG. 6). The storage medium KB stores a table TBL.

When the processor PC lights up the first to third light emitting elements HS1 to HS3, the processor PC refers to the table TBL stored in the storage medium based on the bank angle of the two-wheeled vehicle detected by the acceleration sensor KS. In other words, the speed at which the light is turned on and the speed at which the light is turned off are controlled.

<Table contents>
FIG. 10 shows the table TBL of the fourth embodiment.

As shown in FIG. 10, the table TBL includes, for the first light emitting element HS1 to the third light emitting element HS3, the time to start the transient operation of lighting, the time to end the transient operation of lighting, and the transition time of turning off the light. The relationship between the time to start the temporary operation, the time to end the transient operation of turning off the light, and the brightness of the first to third light emitting elements HS1 to HS3 is shown.

Here, the "transient operation" refers to an operation in which the light gradually becomes brighter and an operation in which the light gradually becomes darker, in contrast to the steady operation in which the light continues to turn on and the light continues to turn off.

<Transient operation of lighting>
As shown in FIG. 10, the first light emitting element HS1 starts the transient operation of lighting, for example, at time t1 (HS1) when the bank angle reaches θ1 (shown in FIG. 7). That is, the brightness is gradually increased, and the transient operation of lighting is ended at time t2 (HS1). The first light emitting element HS1 continues to light up after time t2 (HS1).

As shown in FIG. 10, the second light emitting element HS2 starts the transient operation of lighting at time t1 (HS2) when the bank angle reaches θ2 (shown in FIG. 7), That is, the brightness is gradually increased, and at time t2 (HS2), the transient operation of lighting is ended. The second light emitting element HS2 continues to light up after time t2 (HS2).

As shown in FIG. 10, the third light emitting element HS3 starts a transient operation of lighting at time t1 (HS3) when the bank angle reaches θ3 (shown in FIG. 7), That is, the brightness is gradually increased, and at time t2 (HS3), the transient operation of lighting is ended. The third light emitting element HS3 continues to light up after time t2 (HS3).

<Transient operation of lights out>
As shown in FIG. 10, the third light emitting element HS3 starts a transient operation of turning off at time t3 (HS3) when the bank angle starts to decrease (shown in FIG. 7). That is, the brightness is gradually decreased, and at time t4 (HS3), the transient operation of turning off the light is ended. The third light emitting element HS3 continues to turn off after time t4 (HS3).

As shown in FIG. 10, the second light emitting element HS2 starts a transient operation of turning off at time t3 (HS2) when the bank angle reaches θ3 (shown in FIG. 7). That is, the brightness is gradually reduced, and at time t4 (HS2), the transient operation of turning off the light is ended. The second light emitting element HS2 continues to turn off after time t4 (HS2).

As shown in FIG. 10, the first light emitting element HS1 starts the transient operation of turning off at time t3 (HS1), which is when the bank angle decreases and reaches θ2 (shown in FIG. 7). That is, the brightness is gradually decreased, and the transient operation of turning off the light is ended at time t4 (HS1). The first light emitting element HS1 continues to turn off after time t4 (HS1).

<Time required for transient operation>
In the first light emitting element HS1, the time required for the transient operation of turning on (t2 (HS1) - t1 (HS1)) is equal to the time required for the transient operation of turning off (t4 (HS1) - t3 (HS1)). shorter.

Similarly, in the second light emitting element HS2, the time required for the transient operation of lighting (t2 (HS2) - t1 (HS2)) is longer than the time required for the transient operation of turning off (t4 (HS2) - t3 ( HS2)) shorter.

Furthermore, in the same manner, the time required for the transient operation of turning on the third light emitting element HS3 (t2(HS3)-t1(HS3)) is equal to the time required for the transient operation of turning off the light (t4(HS3)-t3). (HS3)) shorter.

To summarize the above, the lighting speed of each of the first to third light emitting elements HS1 to HS3 is faster than the turning off speed.

As described above, in the motorcycle lamp NT of the fourth embodiment, the speed at which the first to third light emitting elements HS1 to HS3 turn on is faster than the speed at which they turn off. As a result, when the motorcycle is traveling on a curved road and the visibility is getting worse as the bank angle increases, the first light emitting element HS1 to the third light emitting element HS3 are turned off. By quickly turning on the lights, it is possible to suppress the deterioration of the visibility. On the other hand, when the motorcycle is traveling on a curved road and the bank angle is decreasing, the first light emitting element HS1 to the third light emitting element HS3 are turned off more slowly than when they are turned on, thereby reducing the visibility. It is possible to reduce the feeling of discomfort given to the person driving the two-wheeled vehicle by making the change gradual.

Embodiment 5.
<Embodiment 5>
A motorcycle lamp NT according to a fifth embodiment will be described.

The motorcycle lamp NT of Embodiment 5 is characterized by having a pair of auxiliary mechanisms on both left and right sides with respect to the traveling direction of the motorcycle.

FIG. 11 is a see-through perspective view showing the configuration of the motorcycle lamp NT according to the fifth embodiment.

As shown in FIG. 11, the motorcycle lamp NT of the fifth embodiment, like the motorcycle lamp NT of the first embodiment (for example, shown in FIG. 1), includes a light source KG, a condenser lens SL, and a projection lens. and a lens TL.

On the other hand, the motorcycle lamp NT of Embodiment 5 differs from the motorcycle lamp NT of Embodiment 1 in that it includes a left side auxiliary light source HKG(H) and a right side auxiliary light source instead of the auxiliary light source HKG and the auxiliary mechanism HKK. HKG(M), left side auxiliary mechanism HKK(H), and right side auxiliary mechanism HKK(M).

The left side auxiliary light source HKG (H) corresponds to the "second left light source", the right side auxiliary light source HKG (M) corresponds to the "second right light source", and the left side auxiliary mechanism HKK ( H) corresponds to a "left side mechanism", and right side auxiliary mechanism HKK(M) corresponds to a "right side mechanism".

The left side auxiliary light source HKG (H) and the left side auxiliary mechanism HKK (H) of the fifth embodiment are provided at the position where the left side auxiliary light source HKG and the left side auxiliary mechanism HKK of the first embodiment are provided.

On the other hand, the right side auxiliary light source HKG (M) and the right side auxiliary mechanism HKK (M) of Embodiment 5 are the left side auxiliary light source HKG (M) and the right side auxiliary mechanism HKK (M) in the YZ plane including the optical axis KJ (shown in FIG. 3B) of the projection lens TL. The light source HKG (H) and the left side auxiliary mechanism HKK (H) are provided in a plane-symmetrical relationship.

FIG. 12 shows the light distribution HK, the cutoff line CL, and the upper right region JR(M) of the fifth embodiment.

The left side auxiliary mechanism HKK(H) literally uses the second light H2 (same as H2 shown in FIG. 3 of Embodiment 1) generated by the left side auxiliary light source HKG(H). 4, among the upper regions located above the cut-off line CL in the light distribution HK, the left upper region JR(H), which is the region on the left side in the traveling direction of the two-wheeled vehicle, is irradiated.

The right side auxiliary mechanism HKK(M) uses the second light H2 (different from H2 shown in FIG. 3 of Embodiment 1, not shown) generated by the right side auxiliary light source HKG(M). As shown in FIG. 12, among the upper regions located above the cut-off line CL in the light distribution HK, the right upper region JR (M), which is the region on the right side in the traveling direction of the two-wheeled vehicle, is irradiated.

As described above, in the motorcycle lamp NT of the fifth embodiment, as shown in FIG. 4, when the motorcycle turns left on a curved road, the left side auxiliary light source HKG(H) and the left side auxiliary mechanism HKK( H) (both shown in FIG. 11) illuminates the upper left region JR(H).

In the motorcycle lamp NT of the fifth embodiment, on the other hand, as shown in FIG. 12, when the motorcycle turns to the right on a curved road, the right side auxiliary light source HKG (M) and the right side auxiliary mechanism HKK (M) (both shown in FIG. 11) illuminates the upper right region JR(M).

Therefore, in the motorcycle lamp NT of Embodiment 5, when the motorcycle turns to the left on a curved road (as shown in FIG. 4) and when the motorcycle turns to the right on a curved road (as shown in FIG. 12). Even in this case, it is possible to improve the deterioration of visibility caused by the turning described above.

<Modified example>
As described above with reference to FIG. 11, the motorcycle lamp NT of Embodiment 5 has a pair of auxiliary light sources HKG(H) and HKG(M) on both left and right sides with respect to the traveling direction of the motorcycle. There is no need to turn on the lights for each left curve and right curve.

For example, in a country where people drive on the left, when the vehicle enters a left-hand curve, the left side auxiliary light source HKG (H) is driven to illuminate the upper left side. On the other hand, when entering a right-hand curve, there is an oncoming lane on the upper right side, and it is not necessary to illuminate the oncoming lane, so the right side auxiliary light source HKG (M) is not driven and the upper right side is not illuminated. good.

Similarly, in a country where the vehicle drives on the right, when the vehicle enters a right curve, the right side auxiliary light source HKG(M) is driven to illuminate the upper right side. On the other hand, when the vehicle enters a left curve, the left side auxiliary light source HKG(H) does not need to be driven to illuminate the upper left side.

Due to the above-mentioned drive switching, the specifications of the motorcycle lamp NT of Embodiment 5 need to be changed regardless of whether the destination country is a country where traffic is on the left or a country where traffic is on the right. In other words, specifications can be shared.

Embodiment 6.
<Embodiment 6>
A motorcycle lamp NT according to a sixth embodiment will be described.

The motorcycle lamp NT of the sixth embodiment is characterized by the position of the focal point of the projection lens TL.

FIG. 13 is a side view showing the configuration of the motorcycle lamp NT according to the sixth embodiment.

The motorcycle lamp NT of the sixth embodiment basically has the same configuration as the motorcycle lamp NT of the first embodiment (shown in FIGS. 1 to 3).

In the motorcycle lamp NT of the sixth embodiment, as shown in FIG. 13, the focal point ST of the projection lens TL is set at the cutoff line CL (for example, as shown in FIGS. 4 and 12) on the reflective surface HM (TL) of the projection lens TL. ) is spaced by a distance d2 in the Y-axis direction, that is, on the side where the exit surface SM (TL) of the projection lens TL is located. set in position.

As described above, in the motorcycle lamp NT of the sixth embodiment, the focal point ST of the projection lens TL is from the edge TH for defining the cut-off line CL on the reflective surface HM (TL) of the projection lens TL. It is set at a position separated by a distance d2 in the direction of the exit surface SM (TL) of TL. In other words, the position of the focal point ST of the projection lens TL and the position of the edge TH on the reflective surface HM (TL) of the projection lens TL do not match.

After the first light H1 generated by the light source KG is reflected by the reflection surface HM (TL) of the projection lens TL, a low beam LB (shown in FIG. 2) is emitted from the exit surface SM (TL) of the projection lens TL. The cut-off line CL defined by is blurred due to the fact that the above-mentioned two positions do not match, compared to when the two positions match. As a result, the cut-off line CL and the vicinity of the cut-off line CL are irradiated by the low beam LB, the right side auxiliary beam HB (M) (shown in FIGS. 3A and 3B), and the left side auxiliary beam HB (H) (not shown). It is possible to blur the boundary between the irradiation and the irradiation, thereby making the boundary less noticeable.

Embodiment 7.
<Embodiment 7>
A motorcycle lamp NT according to a seventh embodiment will be described.

The motorcycle lamp NT of Embodiment 7 has a feature on the upper surface of the auxiliary mechanism.

FIG. 14 is a transparent perspective view showing the configuration of the motorcycle lamp NT according to the seventh embodiment.

In the motorcycle lamp NT of the seventh embodiment, as shown in FIG. 14, the auxiliary mechanism HKK has a shape that approximates a triangular prism. As shown in FIG. 14, the auxiliary mechanism HKK of the seventh embodiment includes a second reflective surface HM2 (HKK) (also shown in FIG. 3A) as an upper surface. The second reflective surface HM2 (HKK) includes an end side TH (HKK), as shown in FIG.

The cutoff line CL (shown in FIGS. 4 and 12) is defined by the edge TH (HKK) (shown in FIG. 14) of the second reflective surface HM2 (HKK) in the auxiliary mechanism HKK, and As explained in the sixth embodiment, it is also defined by the edge TH (TL) (illustrated in FIG. 14, also illustrated in FIG. 13 and FIG. 1B) of the reflective surface HM (TL) of the projection lens TL.

As shown in FIG. 14, the former edge TH (HKK) and the latter edge TH (TL) lie on a virtual straight line KC extending along the X-axis direction, that is, along the left-right direction of the two-wheeled vehicle. It is located in

As described above, in the motorcycle lamp NT of the seventh embodiment, as shown in FIG. 14, both the edge TH (HKK) and the edge TH (TL) are located on the same virtual straight line KC. There is. As a result, the position of the cutoff line CL defined by the low beam LB (shown in FIG. 2), the right side auxiliary beam HB (M) (shown in FIGS. 3A and 3B), and the left side auxiliary beam HB (H) (not shown) are determined. ) is the same as the position of the cutoff line CL defined by As a result, it is possible to avoid a situation in which the person driving the motorcycle feels uncomfortable in both the cut-off lines CL and the area around the cut-off lines CL due to the difference in the positions of the two cut-off lines CL. .

The embodiments described above may be combined with each other without departing from the gist of the present disclosure, and components in each embodiment may be deleted or changed, or other components may be added as appropriate. good.

The motorcycle lamp according to the present disclosure can be used to reduce the deterioration of visibility caused by cornering while suppressing the size of the space in which the structure for reducing the visibility is arranged.

CL cutoff line, d1 distance, d2 distance, H1 first light, H2 second light, HB auxiliary beam, HK light distribution, HKG auxiliary light source, HKK auxiliary mechanism, HM (HKK) reflective surface, HM2 (HKK) 1st 2 reflective surface, HM (TL) reflective surface, HS1 first light emitting element, HS2 second light emitting element, HS3 third light emitting element, JR upper area, KB storage medium, KC virtual straight line, KG light source, KJ light Axis, KK space, KS acceleration sensor, LB low beam, NM (HKK) entrance plane, NT motorcycle lamp, PC processor, RM back, SL condenser lens, SM (TL) exit plane, ST focal point, SY control unit, TB Table, TBL Table, TH (HKK) Edge, TH (TL) Edge, TL Projection lens.

Claims (6)

a first light source that generates first light;
a condensing lens that condenses the first light generated by the first light source;
In order to illuminate the area below the cut-off line in the forward light distribution of the two-wheeled vehicle, a reflective surface that reflects the first light focused by the condenser lens, and a reflective surface that reflects the first light reflected by the reflective surface, a projection lens having an output surface that outputs light to the front of the two-wheeled vehicle;
a second light source that generates a second light;
A mechanism disposed in a space existing on the side of the surface opposite to the reflective surface of the projection lens to illuminate above the cutoff line in the light distribution, the mechanism comprising: a mechanism that is generated by the second light source; and a reflecting surface that reflects the second light incident from the incident surface toward the front of the two-wheeled vehicle,
The mechanism is a second reflective surface as an upper surface, and the reflective surface of the mechanism has an edge for defining the cutoff line, and the reflective surface of the projection lens defines the cutoff line. and the second reflective surface located on the same imaginary straight line,
Lighting equipment for motorcycles. The curvature of the exit surface of the projection lens in the left-right direction of the two-wheeled vehicle is smaller than the curvature of the exit surface of the projection lens in the vertical direction of the two-wheeled vehicle.
The motorcycle lamp according to claim 1. The second light source includes a plurality of light emitting elements arranged along the vertical direction of the two-wheeled vehicle, each light emitting element turning on or off depending on the bank angle of the two-wheeled vehicle. ,
The motorcycle lamp according to claim 1. The plurality of light emitting elements have a lighting speed that is faster than a lighting speed that is faster than a lighting speed,
The motorcycle lamp according to claim 3. The second light source includes a second light source for the right side and a second light source for the left side,
The mechanism uses second light generated by the second light source for the right side to illuminate a right side of the two-wheeled vehicle in the traveling direction of the two-wheeled vehicle above the cutoff line in the light distribution. and a second light source generated by the second light source for the left side to illuminate the left side of the area above the cutoff line in the light distribution in the traveling direction of the two-wheeled vehicle. The two-wheeled vehicle lamp according to claim 1, further comprising: a function mechanism. The focal point of the projection lens on the first light source side is a position separated from the edge position of the reflection surface of the projection lens for defining the cutoff line toward the exit surface of the projection lens. is set to,
The motorcycle lamp according to claim 1.

Images