JP4425764B2 - Motorcycle headlamp structure - Google Patents

Description

  The present invention relates to a vehicular lamp structure applied to a headlamp or the like of a motorcycle.

2. Description of the Related Art Conventionally, in a vehicle lighting device such as a headlamp of a motorcycle, there is one in which a decoration such as an emblem is provided on an extension portion of a reflector that forms a bulb light reflecting surface (see, for example, Patent Document 1).
Japanese Patent No. 3480724

By the way, in the bulb light of the vehicle lighting device as described above, it is used as the original illumination light by reflecting on the outer peripheral wall portion of the reflector, etc., in addition to the light that is reflected by the reflecting surface of the reflector and illuminates the desired direction. There is a light that cannot be used, and there is a demand for a configuration that can improve the merchantability of a lamp by effectively using such light.
Accordingly, the present invention provides a vehicular lamp structure that can effectively use bulb light that is not used as original illumination light to improve the merchantability of the lamp.

As a means for solving the above problems, the invention described in claim 1 is characterized in that a lens (for example, the lens 51 of the embodiment) is provided in front of a housing (for example, the housing 41 of the embodiment) provided with a valve (for example, the valve 48 of the embodiment). In a headlamp structure of a motorcycle (for example, the motorcycle 1 of the embodiment) having a covered headlamp (for example, the headlamp 32 of the embodiment), the housing has a bulb light reflecting surface (for example, the reflecting surface 45a of the embodiment). The first reflector (for example, the reflector portion 44 of the embodiment) is formed, and an extension portion (for example, the inner extension portion 61 of the embodiment) is provided outside the first reflector , and the reflection direction of the extension portion a second reflector (e.g. the second reflector 63 in the embodiment) which is opposed to the second reflecting surface at a distance thereto (e.g. the second reflecting surface 64a in the embodiment) in provided, said second And extending portion substantially the same shape in a front view with the Furekuta arranged between the extending portion and the lens, and a plurality of transmission holes in said second reflector which transmits the light reflected from the extending portion ( For example, a transmission hole 68 of the embodiment is provided , a reflection portion (for example, the reflection portion 69 of the embodiment) is provided at a position facing the transmission hole in the extension portion, and light from the bulb is passed through the reflection portion. The light is guided to the transmission hole and emitted in a plurality of spots .

  According to this configuration, the bulb light that is not used as the original illumination light by being reflected on the outer peripheral wall portion of the first reflector, etc., enters between the extension portion outside the first reflector and the second reflector, and extends. It is possible to transmit the bulb light from the transmission hole in the reflection direction of the extension part after being guided to the outside of the first reflector while reflecting between the reflection surface of the exit part and the reflection surface of the second reflector. .

  According to this configuration, it is possible to reflect the bulb light that has entered between the extending portion outside the first reflector and the second reflector in a desired direction at a position close to the transmission hole.

The invention described in claim 2 is characterized in that the diameter of the transmission hole is increased so as to expand toward the opposite side to the extension portion.

  According to this configuration, it is possible to widen the light distribution range of the bulb light that passes through the transmission hole.

According to a third aspect of the present invention, a locking plate (for example, the locking plate 66 of the embodiment) provided on the upper portion of the second reflector is arranged on a positioning locking portion (for example, the positioning of the embodiment) provided on the extending portion. The lower part of the second reflector is detachably fastened to the extension part .

According to this configuration, the second reflector can be easily attached to and detached from the first reflector.
According to a fourth aspect of the present invention, the headlamp is provided on a handle cover (for example, the handle cover 31 of the embodiment), the extending portion has a substantially triangular shape in a front view with the upper portion being substantially horizontal, and the transmission hole has a plurality of stages. The number of transmission holes decreases from the upper stage toward the lower stage.

According to the present invention , bulb light that is not used as the original illumination light is guided to the outside of the first reflector and distributed in the reflection direction, thereby expanding the light emitting area and illumination range of the lamp, An accessory lamp can be set outside the first reflector without using a light source, thereby improving the merchantability of the lamp.
According to the present invention , the degree of freedom of light distribution of the bulb light can be increased and used effectively.
According to the present invention, it is possible to widen the light emission area and illumination range by bulb light from the transmission hole and improve the feeling of brightness.
According to this invention , the attachment and detachment man-hours can be reduced by facilitating attachment / detachment of the second reflector.

  Embodiments of the present invention will be described below with reference to the drawings. Note that the directions such as front, rear, left and right in the following description are the same as those in the vehicle unless otherwise specified. In the figure, the arrow FR indicates the front of the vehicle, the arrow LH indicates the left side of the vehicle, and the arrow UP indicates the upper side of the vehicle.

  In the motorcycle 1 shown in FIG. 1, a pair of left and right front forks 12 that pivotally support the front wheel WF are pivotally supported by a head pipe 11 provided at the front end portion of the body frame 10 via a stem 12a. . A handle 13 is attached to the upper portion of the stem 12a, and a front fender 14 is attached to the lower portion of the stem 12a so as to cover the front wheel WF.

  The body frame 10 is a so-called low-floor backbone type in which the position of the main frame 10a extending rearward from the head pipe 11 is provided low. A front end portion of the rear fork 15 that pivotally supports the rear wheel WR is pivotally supported near the rear end portion of the main frame 10a (substantially intermediate portion in the front-rear direction of the vehicle body frame 10). A pair of left and right rear cushions 16 are disposed between the rear portion of the rear fork 15 and the rear portion of the vehicle body frame 10 (seat frame 10b).

  A power unit P including an air-cooled single cylinder type engine E and a transmission M is mounted at the center of the body frame 10. The driving force from the power unit P can be transmitted to the rear wheel WR via the chain 17. A carburetor 19 is disposed above the engine E, and an air cleaner case 18 is disposed above the carburetor 19.

  A fuel tank 20 is disposed above the rear wheel WR and inside the seat frame 10b. The fuel tank 20 is located below the rear portion of the seat 23 (rear passenger seating portion), and the seat 23 is opened and closed via a hinge (not shown), so that the fuel tank 20 and the front portion of the seat 23 (for the driver) It is possible to access the storage box 23a disposed below the seating portion. In the figure, symbol MS indicates a main stand that supports the vehicle body in an upright state, and symbol SS indicates a side stand that supports the vehicle body in an upright state inclined to the left side.

  The seat frame 10b, the storage box 23a, the fuel tank 20, and the like are covered with a rear body cover 21 made of synthetic resin. The seat 23 is supported by the rear body cover 21 and the seat frame 10b. A rear fender 22 that covers the rear rear upper side of the rear wheel WR is connected to the rear lower side of the rear body cover 21. A rear combination lamp 33 in which left and right rear blinkers, a brake lamp, and the like are integrally provided is disposed at the rear end portion of the rear body cover 21.

  Referring to FIG. 2 together, the front portion of the vehicle body frame 10, the engine E, the carburetor 19, the air cleaner case 18, and the like are covered with a front vehicle body cover 26 made of synthetic resin. The front body cover 26 mainly includes the left and right leg shields 24 and a front top cover 25 that extends between the upper front sides of the leg shields 24. A pair of left and right leg shield covers 24a are detachably attached to the outer portions of the leg shields 24, respectively. In addition, left and right front blinkers 27 are disposed on the upper side of each leg shield 24 along the upper edge of the leg shield cover 24a.

  In the left and right grips 28 and 29 provided at both ends of the handle 13, the right grip 29 is configured as an accelerator grip, and a front brake lever 30 is disposed in front thereof. The periphery of the handle 13 is covered with a handle cover 31 so that both grips 28 and 29 protrude, and a headlamp 32 of the motorcycle 1 is disposed at the front center of the handle cover 31. Yes.

  As shown in FIGS. 3 and 4, the headlamp 32 is of a left and right lamp type that shares a housing 41, and the housing 41 includes a housing body 42 that forms a reflector portion (first reflector) 44 of the left and right lamps. And a lens 51 that covers the housing main body 42 from the front over the entire area. Fixing portions 41a to the vehicle body are provided on both side portions and the lower portion of the housing 41, respectively.

  The lens 51 is formed by integrally forming a lens body 52 as a front wall that curves convexly toward the front and an outer peripheral wall 53 that extends rearward from the peripheral edge of the lens body 52. The lens body 52 is disposed so as to be exposed from the front opening of the handle cover 31. The rear end edge portion of the outer peripheral wall portion 53 is bonded and fixed to a fitting portion 42a formed on the outer peripheral edge portion of the housing main body 42 via a sealing material.

  The housing main body 42 has an inner portion 43 that has a predetermined gap with the lens main body 52 and substantially follows the inner main body 52, and left and right reflector portions 44 provided so as to bulge from the left and right of the inner portion 43 toward the rear. It is integrally formed. The inner part 43 left by forming each reflector part 44 constitutes a frame part (extension) of the front opening as a part of each reflector part 44.

  The housing 41 including the lens 51 and the housing main body 42 has a substantially trapezoidal shape with a wide upper portion in front view, except for left and right extending portions 60, which will be described in detail later, and an upper side portion thereof is substantially horizontal. The lower side portion is gently curved so as to be convex downward, and both side portions are gently curved so as to be convex outward.

  Each reflector portion 44 has a deformed quadrangular shape whose outside is suspended in a front view, and is provided symmetrically on the left and right sides in a state of being separated by a predetermined amount across the inner portion 43. Each of the reflector portions 44 includes a bowl-shaped reflector body 45 that opens forward, and an outer peripheral wall portion 46 that extends forward from the outer peripheral edge of the reflector body 45 and continues to the inner portion 43. The reflector main body 45 and the outer peripheral wall portion 46 constitute a left and right lamp chamber 47 together with the lens main body 52.

  At the center of each reflector main body 45, a bulb support portion 49 is provided for detachably supporting the bulb 48 as a light source in the lamp chamber 47 in a state where the bulb 48 is exposed. A valve socket 48b provided at the tip of the main harness is attached to the rear base 48a of the valve 48 supported by the valve support portions 49. The valve support 49 is fitted with a waterproof and dustproof rubber cap 49a covering the periphery of the valve socket 48b.

  Each reflector body 45 is a so-called multi-reflector that forms a step-like reflecting surface 45a. On the other hand, the lens body 52 is a so-called clear lens that is not subjected to lens cutting. The inner surface of the housing main body 42 is subjected to aluminum vapor deposition plating so as to form a reflection surface 45a of each reflector main body 45. The bulb light from each bulb 48 is directed forward on the reflection surface 45a of each reflector main body 45. Then, the light is transmitted through the lens body 52 toward the front of the vehicle. A wave shape or the like is appropriately formed on the inner surface side of the outer peripheral wall portion 46 of each reflector portion 44 so as to suppress reflection of the bulb light.

  Here, on both sides of the housing 41, extending portions 60 extending from the side portions toward the outside are provided. Each extending portion 60 has a substantially triangular shape when viewed from the front, with the upper portion thereof being substantially horizontal, and the lower inclined portion thereof is formed with a convex shape with the outside facing downward and a convex shape with the inside facing upward. Thus, the area in the front view is increased and the side portions of the housing 41 are smoothly connected.

  A strip-shaped inner portion 43 is left on the outer side of the front opening of each reflector portion 44 along the side portion of the housing 41. The inner portion 43 extends outward to extend each extension portion. An inner extending portion 61 that is an extending portion on the housing main body 42 side in the protruding portion 60 is formed. The inner extension portion 61 is provided so as to be displaced rearward with respect to the lens extension portion 62 that is an extension portion on the lens body 52 side so as to form a predetermined interval therebetween. Thus, in the extension space K formed between each inner extension part 61 and the lens extension part 62, the second reflectors 63 having substantially the same shape as the extension part 60 in front view are respectively provided. Provided.

  5 and 6, each of the second reflectors 63 includes a reflector main body 64 that generally extends along the lens extending portion 62, and a short that rises rearward from the upper and lower inclined portions of the reflector main body 64. Rib portion 65 is provided. Each of the second reflectors 63 is disposed in the extension space K so as to be located slightly closer to the lens extension 62, and in this state, the second reflector 63 faces rearward from the short rib portion 65 at the upper part thereof. The engaging plate 66 that partially protrudes is engaged with the positioning locking portion 66a of the inner extending portion 61, and the coupling plate 67 that partially protrudes downward from the lower inclined portion is connected to the inner extending portion 61. By being coupled to the coupling portion 67a with screws or the like, the inner extending portion 61 (the reflector portion 44) is detachably attached.

  Aluminum vapor deposition plating is performed so as to form a second reflecting surface 64a for reflecting bulb light on the rear surface side (inner extending portion 61 side) and the inner surface side of the short rib portion 65 of the reflector main body 64 in each second reflector 63. Is given. On the other hand, an extended reflection surface 61a by the aluminum vapor deposition plating is also formed on the front side (the reflector body 64 side) of each inner extension 61. Note that aluminum deposition plating may be applied to the front surface side of the reflector main body 64 and the outer surface side of the short rib portion 65 in each second reflector 63 in order to improve the appearance through the lens main body 52.

  The reflector body 64 of each second reflector 63 has a total of six transmission holes 68 in a lattice shape, with three in the upper stage, two in the middle, and one in the innermost in the lower, in accordance with the shape of the front view. It is formed to line up. Therefore, from the slit S formed between the inner edge portion of each second reflector 63 and the outer edge portion of the front opening of each reflector portion 44, a part of the bulb light is generated as shown by an arrow B in the figure. The bulb light enters the extension space K, and the bulb light is repeatedly reflected between the second reflection surface 64a of the second reflector 63 and the extension reflection surface 61a of the inner extension portion 61. The light is distributed from each transmission hole 68 to the front as appropriate.

  By the way, as shown in FIGS. 5 and 6, on the front surface side of the inner extension portion 61, the bulb light reflected in the extension space portion K is favorably distributed forward from each transmission hole 68. A plurality of convex reflecting portions 69 each having a spot reflecting surface 69 a formed at a position relatively close to the transmitting hole 68 are provided corresponding to each transmitting hole 68. In addition, the inner peripheral edge portion of each transmission hole 68 is formed in a tapered shape so that the diameter of the front surface side is increased in order to widen the light distribution range from the transmission hole 68.

  As described above, in the vehicle lighting device structure in the above embodiment, the inner extension portion 61 is provided outside the reflector portion 44 that forms the bulb light reflection surface 45a, and the inner extension portion 61 is arranged in the reflection direction. A second reflector 63 is provided so as to be opposed to the second reflecting surface 64a and the second reflector 63 is provided with a transmission hole 68 through which reflected light from the inner extending portion 61 is transmitted. .

  According to this configuration, the bulb light that is not used as the original illumination light by being reflected on the outer peripheral wall portion 46 of the reflector portion 44, or the like is interposed between the inner extension portion 61 outside the reflector portion 44 and the second reflector 63. After being introduced and reflected between the extended reflection surface 61 a of the inner extension portion 61 and the second reflection surface 64 a of the second reflector 63 and guided to the outside of the reflector portion 44, the bulb light is transmitted from the transmission hole 68. It is possible to transmit in the reflection direction of the inner extension portion 61.

  That is, bulb light that is not used as original illumination light is guided to the outside of the reflector section 44 and distributed in the reflection direction, thereby expanding the light emitting area and illumination range of the lamp, or using a dedicated light source. In addition, an accessory lamp can be set on the outside of the reflector portion 44, thereby improving the merchantability of the lamp.

  Moreover, in the said vehicle lighting device structure, the inner extension part 61 outside the reflector part 44 is provided by providing a convex reflection part 69 at a position facing the transmission hole 68 in the inner extension part 61. Since the bulb light that has entered between the second reflector 63 and the second reflector 63 can be reflected in a desired direction at a position close to the transmission hole 68, the degree of freedom of light distribution of the bulb light is increased, which is effective. Can be used.

  Further, in the vehicle lighting device structure described above, the diameter of the transmission hole 68 is increased so as to expand toward the side opposite to the inner extension portion 61, whereby the distribution of the bulb light transmitted through the transmission hole 68 is increased. Since the light range can be widened, the light emission area and illumination range by the bulb light from the transmission hole 68 can be widened to improve the feeling of brightness.

  Furthermore, in the above vehicle lighting device structure, the second reflector 63 is detachably provided on the reflector portion 44, whereby the second reflector 63 can be easily attached to and detached from the reflector portion 44. Therefore, the assembly and disassembly man-hours of the second reflector 63 can be reduced.

The present invention is not limited to the above-described embodiment. For example, the transmission hole 68 of the second reflector 63 is not limited to a circle, but may be a star shape, a character, a desired mark, or the like. And it is good also as colored light combining with a colored lens. Further, the vehicle lighting device structure described above may be applied not only to the left and right two-lamp type headlamps 32 but also to, for example, a one-lamp type headlamp, and further to each blinker or tail lamp. is there.
The configuration in the above embodiment is an example of the present invention, and is not limited to application to a motorcycle. Needless to say, various modifications can be made without departing from the gist of the present invention.

1 is a side view of a motorcycle according to an embodiment of the present invention. Fig. 2 is a front view of the motorcycle. It is a front view of the headlamp of the motorcycle. It is AA sectional drawing in FIG. It is a disassembled perspective view which shows the principal part of the said headlamp. It is a principal part enlarged view in FIG.

Explanation of symbols

44 Reflector section (first reflector)
45a Reflecting surface 61 Inner extension (extension)
63 2nd reflector 64a 2nd reflective surface 68 Transmission hole 69 Reflection part

Claims (4)

In the headlamp structure of a motorcycle having a headlamp in which the front of a housing provided with a bulb is covered with a lens,
The housing forms a first reflector that forms a reflecting surface of the bulb light ,
Providing an extension on the outside of the first reflector ;
A second reflector is provided in the reflecting direction of the extending portion so as to be spaced apart from the second reflecting surface and facing the second reflecting surface .
The second reflector is disposed between the extension portion and the lens, and has a substantially same shape as the extension portion in a front view, and the second reflector transmits a plurality of reflected light from the extension portion . Through holes ,
A reflection part is provided at a position facing the transmission hole in the extension part,
A headlamp structure for a motorcycle, wherein light from the bulb is guided to the transmission hole through the reflecting portion to emit light in a plurality of spots . The motorcycle headlamp structure according to claim 1 , wherein the diameter of the transmission hole is increased so as to expand toward a side opposite to the extending portion. A locking plate provided on the upper part of the second reflector is engaged with a positioning locking part provided on the extending part, and a lower part of the second reflector is detachably fastened to the extending part. The motorcycle headlamp structure according to claim 1 or 2 . The headlamp is provided on a handle cover, the extension portion has a substantially triangular shape when viewed from the front, and the transmission hole is provided in a plurality of stages so that the number of transmission holes decreases from the upper stage toward the lower stage. The motorcycle headlamp structure according to any one of claims 1 to 3, wherein the headlamp structure is a motorcycle.

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