JP2014166782A - Headlight device of motor cycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a headlight device of a motor cycle that is simply structured, can effectively prevent dazzlement to an oncoming vehicle and a pedestrian while improving usage efficiency of emitted light of an LED and can be produced at low cost.SOLUTION: The headlight device 46 of a motor cycle comprises an LED as light emitting source, a reflector 110 that reflects emitted light of the LED and a lens 114 that transmits reflected light from the reflector 110. In the lens 114 is integrally provided a light shading portion 112 that fades or shades at least part of emitted light going directly from the LED (particularly an LED 106 for low beam) toward the lens 114.

Description

  The present invention relates to a motorcycle headlamp apparatus using an LED as a light source.

  2. Description of the Related Art Recently, an LED (Light Emitting Diode) is used as a light emission source in a motorcycle headlamp device. For example, in the headlamp device described in Patent Document 1, a projection lens is provided in front of the LED, and a part of the light emitted from the LED is directly incident on the projection lens. Further, the remainder of the emitted light is incident on the projection lens as reflected light reflected by a reflector provided around the LED. Hereinafter, when light that is directly incident on the projection lens is referred to as “direct light” and light that is incident as reflected light is referred to as “indirect light”, all of the direct light and indirect light are incident on the projection lens. After being diffused, it is irradiated as irradiation light for illuminating the road surface and the like.

JP 2010-49886 A

  The light emitted from the LED does not become dispersed light but travels relatively straight, so that the illuminance tends to be maintained. Therefore, when an oncoming vehicle occupant or pedestrian directly sees light, the occupant or pedestrian may cause illusion or the like.

  Therefore, it is conceived that the direct light is dimmed or shielded. For this reason, if the number of parts of the headlamp device increases, the assembly work becomes complicated and the number of processes increases, the headlamp device Incurs a soaring cost. In particular, in the case of a motorcycle, since the arrangement space of equipment, members, etc. is limited, a configuration that does not cause the above-described illusion without increasing the size of the headlamp device and without increasing the cost. desired.

  In the technique described in Patent Document 1, a projection lens is provided in front of the LED, and all the emitted light from the LED is diffused by the projection lens. Although it can be considered that the light can be reduced by this, in this case, not only the direct light that tends to be illusion light, but also the reflected light is reduced, so that the utilization efficiency of the emitted light of the LED may be reduced. There is.

  The present invention has been made in order to solve the above-described problems, and since it has a simple configuration, it can be reduced in size and can avoid an increase in cost, and the use efficiency of emitted light from an LED can be reduced. It is an object of the present invention to provide a motorcycle headlamp device that can effectively prevent an occupant or pedestrian of an oncoming vehicle from being dazzled.

  In order to achieve the above object, a motorcycle headlamp device according to the present invention has the following characteristics.

1st characteristic; It has LED (108) which is a light emission source, the reflector (110) which reflects the emitted light of said LED (108), and the lens (114) which permeate | transmits the reflected light of the said reflector (110). A headlamp device (46) for a motorcycle (10),
The lens (114) extends toward the LED (108) side, and a light shielding portion (112) for dimming or shielding at least a part of the emitted light directly directed from the LED (108) toward the lens (114). ) Are provided integrally.

  2nd characteristic; The said light-shielding part (112) is given the embossing process.

  Third feature: At least a part of the light shielding portion (112) is colored.

  Fourth feature: The LED (108) is composed of a low beam LED (106) and a high beam LED (104), and the light shielding portion (112) is formed from the low beam LED (106) to the lens (114). At least a part of the directly emitted light is dimmed or shielded.

  Fifth feature: the low beam LED (106) is provided above the high beam LED (104).

  Sixth feature: the light shielding portion (112) extends from the lens (114) toward the low beam LED (106), and does not diminish or shield the light emitted from the high beam LED (104).

  Seventh feature: In the lens (114), a portion (134) that transmits light based on light emitted from the low beam LED (106) is formed in an arc shape that curves from the front to the rear of the vehicle body. .

  According to the first feature of the present invention, at least a part of the direct light directly directed to the lens without passing through the reflector is reduced or shielded by the light shielding portion extending from the lens toward the LED. can do. That is, of the light emitted from the LED, a simple structure such as a light-shielding portion integrally formed with the lens, which is a direct light that is highly straight ahead and easily illusion compared to the reflected light (indirect light) reflected by the reflector. Therefore, it can be easily dimmed or shielded.

  For this reason, it is avoided that a headlamp apparatus enlarges or a number of parts increases. Therefore, it is possible to avoid the occurrence of illusion in the oncoming vehicle occupants and pedestrians while reducing the size of the headlamp device and maintaining the cost. Of course, the assembly work of the headlamp apparatus is not complicated, and the number of processes is not increased.

  On the other hand, the reflected light (indirect light) is not dimmed or shielded by the light shielding portion, and thus can be irradiated through the lens as it is. For this reason, for example, the reflected light can be efficiently used as compared with a headlamp device that irradiates the reflected light and the direct light together with the projection lens and then irradiates the light forward.

  As a result, this headlamp device can effectively prevent the occupant and pedestrian of the oncoming vehicle from being dazzled by a simple and inexpensive configuration, and can improve the utilization efficiency of the emitted light of the LED.

  According to the second feature of the present invention, since the direct light can be diffused and dimmed or blocked by the light-shielding portion that has been subjected to the embossing process, the light-shielding portion can be easily formed with a simpler configuration. Can do.

  According to the third feature of the present invention, the direct light can be reduced or blocked by the colored portion of the light blocking portion. Furthermore, since the light-shielding part can be visually recognized from the outside of the headlight device via a lens or the like, it is possible to design in consideration of the appearance from an oncoming vehicle, etc., depending on the color of the colored part, and the design is excellent. A headlamp device can be obtained.

  According to the fourth aspect of the present invention, at least part of the direct light of the low beam LED can be dimmed or shielded. When driving in the city at night, when passing by an oncoming car or a pedestrian, the low beam LED is mainly lit, so as described above, the direct light of the low beam LED is dimmed or blocked. It is possible to prevent the dazzling from occurring more effectively.

  According to the fifth aspect of the present invention, the low beam LED is arranged above the high beam LED, so that each of the light distribution pattern suitable for the low beam and the alignment pattern suitable for the high beam can be more easily formed. Can do.

  According to the sixth aspect of the present invention, since the light shielding portion extends from the lens toward the low beam LED, the light shielding portion suppresses the light emitted from the high beam LED from being dimmed or shielded. Yes. In other words, the light emitted from the high beam LED, which is required to emit light stronger than the low beam LED, can be transmitted through the lens as it is to be a high beam. Thereby, the utilization efficiency of the emitted light from the LED can be increased, and a high beam with sufficient emission intensity can be obtained.

  According to the seventh feature of the present invention, the lens transmits the high beam based on the light emitted from the high beam LED by forming the portion that transmits the low beam based on the light emitted from the low beam LED as described above. The appearance and light distribution between the parts can be clarified. That is, in this headlamp device, the direct light of the LED can be dimmed or shielded by the light shielding portion extending from the lens, so that the dazzling can be effectively prevented regardless of the shape of the lens. Accordingly, the degree of freedom in designing the lens can be improved, and the design can be improved and the appearance can be made novel while ensuring the light distribution characteristics required for each of the low beam and the high beam.

1 is a left side view of a motorcycle including a headlight device according to an embodiment. It is a disassembled perspective view of the headlamp apparatus shown in FIG. It is a partially cutaway front view of the headlamp apparatus shown in FIG. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3. FIG. 5 is a cross-sectional view taken along line VV in FIG. 3.

  A motorcycle headlamp device (hereinafter also simply referred to as a headlamp device) according to the present invention will be described in detail below with reference to the accompanying drawings.

  First, the overall configuration of the motorcycle 10 will be described with reference to FIG. Unless otherwise specified, the front and rear and up and down directions will be described according to the arrow direction shown in FIG. 1, and the left and right directions will be described with reference to the direction viewed from the driver seated on the vehicle body. In FIG. 1, the left and right components are labeled only on the left side.

  FIG. 1 is a left side view of the motorcycle 10. The motorcycle 10 mainly includes a head pipe 12, a main frame 14, a pivot plate 16, a seat frame 18, a sub frame 20, a down tube 22, a gusset 24, and a reinforcing frame 26. A body frame 28 is provided.

  The head pipe 12 is provided at the front end of the vehicle body, and the main frame 14 extends rearward and downward. A pivot plate 16 is connected to the rear end portion of the main frame 14, a seat frame 18 is connected to an intermediate portion of the main frame 14 so as to extend rearward and upward, and a seat is connected to the rear end portion of the main frame 14. The rear end of the frame 18 is connected. The subframe 20 is connected to the pivot plate 16 and extends rearward and upward. The rear end portion of the sub frame 20 is connected to the rear end portion of the seat frame 18.

  The down tube 22 extends rearward and downward from the head pipe 12. The gusset 24 is connected to the rear part of the head pipe 12, the front part of the main frame 14, and the upper part of the down tube 22 to reinforce the periphery of the head pipe 12. The reinforcing frame 26 connects the main frame 14 and the gusset 24. The main frame 14, the pivot plate 16, and the down tube 22 support an engine 32 to which the transmission 30 is integrally attached.

  The motorcycle 10 includes a front fork 34, a front wheel 36, a handle 38, a swing arm 40, a rear wheel 42, a cushion unit 44, a headlamp device 46 according to the present embodiment, a meter 48, and the like. Further, a seat 50 and a fuel tank 52 are further provided.

  The front fork 34 is supported by the head pipe 12 so as to be steerable. A front wheel 36 is rotatably supported at the lower end portion of the front fork 34, and a steering handle 38 is attached to the upper end portion. The swing arm 40 is swingably supported by the pivot plate 16, and a rear wheel 42 is rotatably supported at the rear end portion of the swing arm 40.

  The cushion unit 44 is connected to the swing arm 40 and the main frame 14. The headlamp device 46 and the meter 48 are provided in front of the head pipe 12. A specific configuration of the headlamp device 46 will be described later.

  A seat 50 is disposed above the main frame 14 and from substantially the center of the main frame 14 to the rear, and a fuel tank 52 is provided above the main frame 14 and between the head pipe 12 and the seat 50.

  In addition, the motorcycle 10 includes a vehicle body cover 54 that covers the periphery of the vehicle body frame 28. Specifically, the vehicle body cover 54 includes a front cowl 56, a meter cover 58, a shroud 60, a side cover 62, and a rear side cover 64.

  The front cowl 56 covers the periphery of the headlamp device 46. A meter cover 58 is fixed above the front cowl 56. The shroud 60 is fixed to both side surfaces of the fuel tank 52 in the vehicle width direction. The side cover 62 covers the side of the middle part of the body frame 28, and the rear side cover 64 covers the side of the rear part of the body frame 28.

  In FIG. 1, reference numeral 66 denotes a front winker, 68 denotes a front fender, 70 denotes a taillight, 72 denotes a rear winker, 74 denotes a rear fender, 76 denotes a grab rail, and 78 denotes a main step.

  Further, the engine 32 disposed below the fuel tank 52 has outer shells of a crankcase 80, a cylinder block 82, a cylinder head 84, a cylinder head cover 86, an ACG (generator) cover 88, and a clutch. It is mainly constituted by a cover (not shown).

  A cylinder block 82 is attached to the front upper end of the crankcase 80, and a cylinder head 84 is attached to the upper end of the cylinder block 82. An upper opening of the cylinder head 84 is covered with a cylinder head cover 86. Further, the opening on the left side surface of the crankcase 80 is covered with an ACG cover 88, and the opening on the right side surface is covered with a clutch cover (not shown).

  On the peripheral surfaces of the cylinder block 82 and the cylinder head 84, cooling fins 90 are formed for cooling the engine 32 when the traveling wind hits. The engine 32 is mounted such that the cylinder axis of the cylinder block 82 tilts forward.

  A throttle body 94 is connected to an intake port (not shown) formed in the rear portion of the cylinder head 84 via an intake pipe 92, and an air cleaner 98 is connected to the upstream end of the throttle body 94 via a connection pipe 96. It is connected. A muffler 102 is connected to an exhaust port (not shown) formed in the front portion of the cylinder head 84 via an exhaust pipe 100.

  Next, the configuration of the headlamp device 46 according to the present embodiment will be specifically described with reference to FIGS. 2 to 5 are an exploded perspective view, a partially cutaway front view, a sectional view taken along line IV-IV in FIG. 3, and a sectional view taken along line VV in FIG. 3, respectively. It is.

  As shown in FIGS. 2 and 3, the headlamp device 46 includes an LED 108 including a high beam LED 104 and a low beam LED 106, a reflector 110 that reflects light emitted from the LED 108, and at least a part of light emitted from the low beam LED 106. And a lens 114 provided integrally with a light shielding portion 112 (see FIGS. 4 and 5) for dimming or shielding light.

  Specifically, as shown in FIGS. 4 and 5, a housing is constituted by the reflector 110 and the lens 114, and the high beam LED 104 and the low beam LED 106 are supported by the substrate 118 in a space 116 inside the housing. It is housed in the state. Each of the high beam LED 104 and the low beam LED 106 is electrically connected to a control unit (not shown) provided outside the space 116 via a signal line (not shown). The high beam LED 104 and the low beam LED 106 may be configured as a so-called direct coupler type that is directly connected to a coupler.

  The high beam LED 104 emits, for example, light for a traveling beam (high beam) that irradiates far away in front of the vehicle. Further, the high beam LED 104 is attached to the front end portion of the lower side surface 118a of the substrate 118, and one high beam LED 104 is arranged on the vehicle body centerline A shown in FIG.

  For example, the low beam LED 106 emits light for a low beam that irradiates a driver or a pedestrian in front of the vehicle with a relatively close distance in front of the vehicle to suppress glare. The low-beam LEDs 106 are attached to a substantially middle part in the front-rear direction of the upper side surface 118b of the substrate 118, and two LEDs are arranged at positions symmetrical with respect to the vehicle body center line A shown in FIG.

  That is, in the headlight device 46, the low beam LED 106 is disposed above the high beam LED 104. Thus, each of the light distribution pattern suitable for the low beam and the light distribution pattern suitable for the high beam can be easily formed. The substrate 118 prevents the emitted light of the high beam LED 104 attached to the lower side surface 118a from being transmitted to the upper side surface 118b, and the emitted light of the low beam LED 106 attached to the upper side surface 118b to the lower side surface 118a side. It is preferable that it is made of a light-shielding material so that it does not pass through. As this material, a material that does not transmit light, for example, a polycarbonate resin colored with black or the like and imparted with a light-shielding property can be used.

  A fitting groove 120 is formed at the edge of the reflector 110. In addition, the reflector 110 includes, in this order, a high beam reflecting portion 122 that reflects the emitted light from the high beam LED 104, a support portion 124 that supports the substrate 118, and a low beam reflecting portion 126 that reflects the emitted light from the low beam LED 106 in this order. Have in. That is, in the reflector 110, the low beam reflection portion 126 is provided above the high beam reflection portion 122, and the support portion 124 is interposed between the high beam reflection portion 122 and the low beam reflection portion 126.

  The fitting groove 120 has a width equal to or slightly shorter than the thickness of the outer peripheral edge portion 130 of the lens 114, and the outer peripheral edge portion 130 can be fitted therein. As the outer peripheral edge portion 130 is fitted into the fitting groove 120, the lens 114 is connected to the reflector 110 to form a housing, and a space 116 is formed therein. A seal member (not shown) may be provided between the reflector 110 and the lens 114 so that rain, dust, or the like does not enter the space 116 from the outside.

  The high beam reflecting portion 122 (see FIG. 4) is formed in an arc shape that is gently curved from the front lower side to the rear upper side of the high beam LED 104 attached to the lower side surface 118a of the substrate 118. Due to this shape, the high beam reflecting portion 122 reflects the light emitted from the high beam LED 104 toward the front and upward of the vehicle body.

  The support part 124 has a shape extending rearward from the upper end part 122 a of the high beam reflection part 122 and the lower end part 126 a of the low beam reflection part 126. The support portion 124 has a thick attachment portion 128 that is formed so as to substantially hang down with respect to a horizontal portion that is continuous with the lower end portion 126a and extends substantially horizontally.

  The lower surface of the attachment portion 128 is exposed to the space 116. The substrate 118 is attached to this lower surface. That is, a female screw portion 128a is formed on the lower surface of the attachment portion 128, while a through hole 118c (see FIG. 2) is formed in the vicinity of the rear end and the left and right ends of the substrate 118. The male screw 129 passed through each through-hole 118c is screwed into the female screw portion 128a, whereby the substrate 118 is attached to the attachment portion 128 (support portion 124).

  It goes without saying that the substrate 118 may be supported by the support portion 124 in other configurations. For example, the substrate 118 may be bonded to the support portion 124 with an adhesive, or a concave portion and a convex portion may be formed on the substrate 118 and the support portion 124, respectively, and fitted together.

  The low beam reflecting portion 126 (see FIG. 5) is formed in an arc shape that curves from the rear to the upper front of the low beam LED 106 attached to the upper side surface 118b of the substrate 118. With this shape, the low beam reflector 126 reflects the light emitted from the low beam LED 106 toward the front and the bottom of the vehicle body. As shown in FIG. 2, the low beam reflectors 126 are provided at two locations on the reflector 110 so as to correspond to the two low beam LEDs 106.

  The lens 114 is made of a transparent material that transmits the reflected light or the like reflected by the reflector 110, and includes an outer peripheral edge portion 130, a high beam transmission portion 132, and a low beam transmission portion 134. A low beam transmission part 134 is arranged above the high beam transmission part 132, and a linear part 136 is interposed between the high beam transmission part 132 and the low beam transmission part 134. Further, the light shielding portion 112 is provided integrally with the lens 114 so as to extend from the surface (inner surface) facing the space 116 of the linear portion 136 toward the low beam LED 106.

  The outer peripheral edge 130 is fitted into the fitting groove 120 by being inserted into the fitting groove 120 of the reflector 110. A stopper portion 138 that protrudes outward is provided around the outer peripheral edge portion 130 of the lens 114. The stopper portion 138 comes into contact with the vicinity of the opening of the fitting groove 120 when the outer peripheral edge portion 130 is inserted into the fitting groove 120, thereby restricting further insertion of the outer peripheral edge portion 130.

  The high beam transmitting section 132 transmits light (high beam) based on the light emitted from the high beam LED 104 and gently curves from the front lower side of the vehicle body to the upper rear side in front of the high beam LED 104 as shown in FIG. It is formed in an arc shape.

  The low beam transmitting portion 134 transmits light (low beam) based on the light emitted from the low beam LED 106 and, as shown in FIG. 5, is an arc shape that curves from the rear lower side of the vehicle body to the front upper side in front of the low beam LED 106. Is formed.

  As described above, the high beam transmitting portion 132 and the low beam transmitting portion 134 having different bending directions are divided by the linear portion 136 interposed therebetween. The linear portion 136 connects the upper end portion 132a of the high beam transmission portion 132 and the lower end portion 134a of the low beam transmission portion 134 located behind the upper end portion 132a in a substantially linear shape.

  The light shielding unit 112 reduces or blocks at least a part of the light (direct light) directly directed to the low beam transmission unit 134 out of the light emitted from the low beam LED 106. That is, as shown in FIG. 5, at least a part of the direct light is dimmed or shielded by the light shielding part 112 being interposed between the low beam LED 106 and the low beam transmitting part 134.

  On the other hand, since the light shielding unit 112 is not interposed between the low beam reflecting unit 126 and the low beam transmitting unit 134, the reflected light of the low beam reflecting unit 126 is not dimmed or blocked. That is, the light (low beam) transmitted through the low beam transmission part 134 is mainly reflected light (indirect light) reflected by the low beam reflection part 126.

  Since the light shielding portion 112 is formed integrally with the lens 114, the light shielding portion 112 is made of the same material as the lens 114. For example, at least a part of the outer surface thereof is subjected to graining. As described above, the light shielding portion 112 formed by the embossing process can diffuse or reduce the light by diffusing the direct light emitted from the low beam LED 106 toward the light shielding portion 112. Therefore, the light shielding portion 112 can be easily formed with a simple configuration.

  The light-shielding portion 112 may be formed with a coloring process in addition to or instead of the above-described embossing. That is, by making at least a part of the light shielding portion 112 colored by a coloring process, the direct light from the low beam LED 106 can be diffused or absorbed to reduce or block light. In this case, since the light shielding portion 112 can be visually recognized from the outside of the headlamp device 46 via the transparent lens 114, the appearance from the oncoming vehicle or the like is taken into consideration by the color of the colored portion of the light shielding portion 112. Design is possible, and the headlamp device 46 excellent in design can be obtained.

  As shown in FIG. 4, in the space 116, the substrate 118 extends to the lower side of the linear portion 136, and the high beam LED 104 is attached to the lower side surface 118 a of the substrate 118. In other words, the light blocking portion 112 is disposed behind the high beam LED 104 and is not interposed between the high beam LED 104 and the high beam reflecting portion 122 and the high beam transmitting portion 132. Therefore, the light emitted from the high beam LED 104 can be transmitted through the high beam transmitting portion 132 without being dimmed or shielded by the light shielding portion 112 to be a high beam. In addition, since the high beam LED 104 and the low beam LED 106 are separately arranged on the upper and lower sides of the substrate 118, they can be made less susceptible to the influence of heat, thereby improving heat dissipation. .

  The headlamp device 46 according to the present embodiment is basically configured as described above. Next, the effects thereof will be described in relation to the operation.

  For example, when a pedestrian, an oncoming vehicle, and a preceding vehicle exist in the vicinity, such as when traveling in the city at night, the high beam LED 104 is turned off and the low beam LED 106 is turned on by the control of the control unit. That is, a low beam is irradiated by the headlamp device 46.

  At this time, as shown in FIG. 5, at least a part of the direct light that goes directly to the low beam transmission part 134 without passing through the low beam reflection part 126 is dimmed or reduced by the light shielding part 112. Shaded. On the other hand, the reflected light reflected by the low beam reflecting portion 126 goes to the low beam transmitting portion 134 without being dimmed or shielded by the light shielding portion 112.

  Here, since the substrate 118, the linear portion 136, and the light shielding portion 112 are interposed between the low beam LED 106 and the low beam reflection portion 126 and the high beam transmission portion 132, the direct light and the low beam reflection portion 126 of the low beam LED 106 are interposed. Can be prevented from being irradiated toward the high beam transmitting portion 132.

  For the above reasons, the low beam mainly composed of the reflected light (indirect light) of the low beam reflecting portion 126 is irradiated from the low beam transmitting portion 134 of the lens 114. Therefore, direct light that tends to be illusion light out of the emitted light from the low beam LED 106 can be reduced or blocked, while reflected light (indirect light) can be used as it is to form a low beam.

  As described above, in the headlamp device 46, the direct light of the low beam LED 106 that is highly linear and is likely to become illusion light is reduced or shielded by a simple configuration such as the light shielding portion 112 integrally formed with the lens 114. Can do.

  On the other hand, the reflected light of the low beam reflecting section 126 can be directly transmitted through the low beam transmitting section 134 to be a low beam. Therefore, for example, the reflected light can be used more efficiently than a headlamp device that irradiates the light forward via a projection lens that attenuates both the reflected light and the direct light.

  As described above, the headlamp device 46 effectively suppresses the occurrence of dazzling for oncoming passengers and pedestrians while improving the utilization efficiency of the light emitted from the low beam LED 106 with a simple configuration. be able to.

  Moreover, since only the light shielding portion 112 extending toward the space 116 is provided, it is possible to avoid an increase in the size of the headlamp device 46 and an increase in the number of parts. For this reason, it is possible to reduce the size of the headlamp device 46 and to avoid an increase in cost. Of course, it is also possible to avoid the trouble of assembling the headlamp device 46 and increasing the number of processes.

  When the light-shielding portion 112 is colored, there is an advantage that the headlamp device 46 is excellent in design as described above.

  On the other hand, for example, during night driving, when there are no pedestrians, oncoming vehicles, and preceding vehicles around, it is required to improve visibility. Therefore, in this case, the occupant operates the changeover switch to turn on the high beam LED 104 and turn off the low beam LED 106 under the control of the control unit. That is, a high beam is irradiated by the headlamp device 46.

  At this time, as shown in FIG. 4, the direct light directly directed to the high beam transmitting portion 132 and the reflected light reflected by the high beam reflecting portion 122 out of the emitted light from the high beam LED 104 are attenuated or blocked by the light shielding portion 112. The high beam is configured as it is without being.

  As shown in FIGS. 4 and 5, in the headlamp device 46, a low beam transmission part 134 is disposed behind the high beam transmission part 132. In the space 116, the linear portion 136 and the light-shielding substrate 118 are interposed between the high beam LED 104 and the high beam reflecting portion 122 and the low beam transmitting portion 134. For this reason, it can prevent that the direct light of LED104 for high beams 104 and the reflected light of the high beam reflection part 122 are irradiated toward the low beam transmission part 134. FIG.

  For this reason, the light emitted from the high beam LED 104 can be used without being dimmed or shielded. That is, a high beam with sufficient light emission intensity can be obtained by efficiently using the light emitted from the high beam LED 104.

  As described above, the headlamp device 46 effectively prevents dazzling by dimming or blocking the direct light of the low beam LED 106 that is turned on when passing by an oncoming vehicle or a pedestrian during night driving. it can. On the other hand, the light emitted from the high beam LED 104, which requires a high emission intensity compared to the low beam, can be used as it is without being dimmed or shielded to obtain a high beam with sufficient emission intensity.

  That is, in the headlight device 46, it is possible to effectively prevent the oncoming vehicle and the pedestrian from being dazzled while improving the utilization efficiency of the emitted light of each of the low beam LED 106 and the high beam LED 104.

  Further, in the headlamp device 46, the direct light of the low beam LED 106 can be dimmed or blocked by the light blocking portion 112, so that the light distribution pattern is formed by the high beam transmitting portion 132 and the low beam transmitting portion 134 regardless of the shape of the lens. It is possible to make the difference clearly, in other words, to clearly discriminate the transmitted light (high beam or low beam) and effectively prevent dazzling. Accordingly, the degree of freedom in designing the lens can be improved, and the design characteristics of the headlamp device 46 can be improved and a novel appearance can be achieved while ensuring the light distribution characteristics necessary for each of the low beam and the high beam. For example, it is possible to employ a lens 114 in which the high beam transmission part 132 and the low beam transmission part 134 have different shapes from each other, and the appearance divisions are clear.

  As mentioned above, although this invention was demonstrated using suitable embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above embodiment. It is apparent from the description of the scope of claims that embodiments with such changes or improvements can be included in the technical scope of the present invention. In addition, the reference numerals in parentheses described in the claims are appended to the reference numerals in the accompanying drawings for easy understanding of the present invention. It is not construed as limiting.

  For example, in the above embodiment, the example in which the light shielding portion 112 is formed by the texture processing and the coloring processing has been described. However, the present invention is not particularly limited thereto, and the light shielding portion 112 reduces or blocks light emitted from the LED. Anything is possible.

  Further, in the above embodiment, the high beam transmission portion 132 is formed in an arc shape that curves from the front lower side of the vehicle body toward the upper rear side in front of the high beam LED 104, and the low beam transmission portion 134 is formed on the lower rear side of the vehicle body. And a linear portion 136 is interposed between the high beam transmitting portion 132 and the low beam transmitting portion 134. However, the shape of each of the high beam transmission portion 132 and the low beam transmission portion 134 is not limited to the above shape, and can be formed in a desired shape. Further, it is not particularly necessary to provide the linear portion 136.

  Furthermore, the location where the light shielding portion 112 extends is not limited to the inner surface of the linear portion 136. The light shielding portion 112 may be disposed so as to extend from the inner surface of the lens 114 so that at least a part of the direct light of the low beam LED 106 can be dimmed or shielded.

  Furthermore, the number and arrangement location of the high beam LED 104 and the low beam LED 106 are not limited to the above-described embodiment, and a desired number and arrangement location can be set.

DESCRIPTION OF SYMBOLS 10 ... Motorcycle 46 ... Headlamp device 104 ... High beam LED 106 ... Low beam LED
DESCRIPTION OF SYMBOLS 108 ... LED 110 ... Reflector 112 ... Light-shielding part 114 ... Lens 116 ... Space 118 ... Board | substrate 118a ... Lower side surface 118b ... Upper side surface 118c ... Through-hole 120 ... Fitting groove 122 ... High beam reflection part 124 ... Support part 126 ... Low beam reflection part 128 ... Mounting portion 128a ... Female thread portion 129 ... Male screw 130 ... Outer peripheral edge portion 132 ... High beam transmitting portion 134 ... Low beam transmitting portion 136 ... Linear portion 138 ... Stopper portion

Claims (7)

A motorcycle (10) comprising an LED (108) that is a light source, a reflector (110) that reflects light emitted from the LED (108), and a lens (114) that transmits light reflected by the reflector (110). Headlamp device (46),
The lens (114) extends toward the LED (108) side, and a light shielding portion (112) for dimming or shielding at least a part of the emitted light directly directed from the LED (108) toward the lens (114). ), The headlamp device (46) of the motorcycle (10).   The headlamp device (46) of the motorcycle (10) according to claim 1, wherein the shading part (112) is subjected to a textured process.   The headlamp device (46) of a motorcycle (10) according to claim 1 or 2, characterized in that at least a part of the light-shielding part (112) is colored.   The headlamp device (46) according to any one of claims 1 to 3, wherein the LED (108) includes a low beam LED (106) and a high beam LED (104), and the light shielding portion ( 112) A headlamp device (46) for a motorcycle (10), wherein at least part of the emitted light directly directed from the low beam LED (106) to the lens (114) is dimmed or shielded.   The headlamp device (46) according to claim 4, wherein the low beam LED (106) is provided above the high beam LED (104). 46).   6. The headlamp device (46) according to claim 4 or 5, wherein the light shielding portion (112) extends from the lens (114) toward the low beam LED (106), and the high beam LED (104). A headlamp device (46) for a motorcycle (10), wherein the emitted light is not dimmed or blocked.   The headlamp device (46) according to any one of claims 4 to 6, wherein the lens (114) has a portion (134) that transmits light based on light emitted from the low beam LED (106). A headlamp device (46) for a motorcycle (10), wherein the headlamp device (46) is formed in an arc shape that curves from the front to the rear of the vehicle body.

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