JP4545555B2 - Turn signal structure of motorcycle - Google Patents

Description

The present invention relates to a winker structure for a motorcycle.

2. Description of the Related Art Conventionally, in a vehicle lighting device such as a winker, a configuration in which a bulb and its reflector are provided inside a case and the opening of the case is covered with a lens has been employed (see, for example, Patent Document 1).
Japanese Utility Model Publication No. 3-22032

By the way, in the vehicle lighting device as described above, the illumination range by the bulb light tends to be relatively monotonous, and on the other hand, if a light emitting diode is adopted to make the illumination range novel, the cost increases. Therefore, there is a demand for a structure that can improve the commerciality of the lighting device by making the illumination range of the bulb light novel.
Therefore, the present invention provides a vehicular lamp structure that can improve the merchantability of a lamp by making the illumination range by bulb light novel.

As a means for solving the above problems, the invention described in claim 1 is a case (for example, a case main body 42 of the embodiment) in which a valve (for example, the valve 48 of the embodiment) and a reflector (for example, the reflector 43 of the embodiment) are provided. ) And a lens (for example, the front blinker 27 of the embodiment) provided with a lens (for example, the lens 51 of the embodiment) that covers the opening of the case at the front part of the left and right leg shield (for example, the leg shield 24 of the embodiment). In the winker structure of a motorcycle provided respectively, the lens of the left and right winkers has a horizontally long triangular shape including a lens extension portion (for example, the lens extension portion 54 of the embodiment) that is continuously tapered outwardly in a front view. None, at a position opposed to the lens extension of said reflector, said a reflector integral to the lens extension To form an extension portion which faces a predetermined gap (e.g., extension 46 in the embodiment), the extension portion, the reference line extending along the longitudinal direction of the street luminescent centers and blinker of said valve the U-shaped section groove along (groove 61 in the examples), the series to extend form to the vicinity of the outer end of the extension portion, so as to guide the bulb light through the groove portion, wherein the said lens A plurality of flute cut lenses (for example, the flute cut lens 52a of the embodiment) having a cross-sectional arc shape extending along a reference line are formed, and the groove portion is disposed along the flute cut lens , and the groove portion of the flute cut lens the portion facing the Renzuka' of small diameter forming the front view substantially circular with a lens cut intersecting vertically with the reference line Arranging a plurality parts (e.g. lens cut portion 63 in the embodiment) in a row along the longitudinal direction of the groove, when the lighting of c Inca causes the light line-shaped light by the groove opposite to the position of the lens In addition, spot-like light is emitted by the lens cut portion .

According to this configuration, a part of the bulb light from the bulb can be distributed in a desired direction after being guided to the outside of the reflector through the groove. In addition, it is possible to cause the lens to emit light in a spot shape by the bulb light guided through the groove.

The invention described in claim 2 is characterized in that the groove portion is formed to increase in depth in the longitudinal direction toward the valve side .

According to a third aspect of the present invention, left and right leg shield covers (for example, leg shield cover 24a of the embodiment) are detachably provided below the outer side of the left and right leg shields, respectively, and the left and right leg shields are disposed on the upper side of the left and right leg shields. The left and right turn signals are arranged along the upper edge of the leg shield cover, respectively.

According to the present invention , a part of the bulb light is guided and distributed to the outside of the reflector, so that the light emission area and the illumination range of the lamp can be expanded, or the light along the groove is formed outward of the illumination range by the reflector. Contrast can be generated, and thus the merchantability of the lamp can be improved.
In addition, according to the present invention , by causing the lens to emit light in a spot shape, it is possible to obtain an appearance as if a light-emitting diode is disposed, and it is possible to produce a high-class feeling of the lamp.

  Embodiments of the present invention will be described below with reference to the drawings. In the following description, the directions such as front, rear, left and right 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 via a stem 12a on a head pipe 11 provided at the front end portion of the body frame 10. . 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 as well, 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 of the grip 29. Established. 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 is disposed at the front center of the handle cover 31.

  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. The left and right front blinkers 27 are arranged on the upper side of each leg shield 24 along the upper edge of the leg shield cover 24a.

Hereinafter, the front turn signal 27 on the right side will be described, and the description on the left side will be omitted because it is left-right symmetrical.
As shown in FIGS. 3 and 4, the front blinker 27 is formed by arranging a bulb 48 in a lamp case 41 including a case main body (case) 42 and a lens 51, and an outer surface (lens surface) of the lens 51 is formed. The front body cover 26 is attached to the front body cover 26 in an inclined state so that the outer side of the front body cover 26 is located rearward of the inner side so as to be along the outer surfaces of both sides of the front part. Reference numeral 41a in the figure indicates a fixing portion of the front turn signal 27 to the front vehicle body cover 26.

  The lamp case 41 has a horizontally long triangular shape with its outer portion suspended in a front view. More specifically, the lamp case 41 is gently inclined so that its upper side portion is located upward as it is located obliquely outward and rearward. A relatively short inner side that is inclined so that the lower side part, which is slightly inclined from the outer end of the upper side part, extends obliquely inward and forward and is located upward from the inner end of the lower part. The side rises and reaches the inner end of the upper side. The inner portion of the lamp case 41 is configured as a lamp body 27A that forms a lamp chamber 47 in which the bulb 48 is disposed, while the outer portion is configured as a lamp extension 27B that is outside the illumination range of the body by the bulb light. Composed.

  The lens 51 has a main lens portion 53 that curves in a convex shape toward an obliquely outward front at an inner portion thereof, and a lens extension portion 54 that continues to the outer portion of the main lens portion 53, and these are the front body cover. 26 is integrally formed as a lens main body 52 along the outer peripheral edge 26, and an outer peripheral wall portion 55 extending obliquely inwardly and rearwardly is integrally formed on the outer peripheral edge of the lens main body 52. The rear end edge portion of the outer peripheral wall portion 55 is fitted into a fitting portion 42a formed on the outer peripheral edge portion of the case main body 42 via a sealing material, and in this state, the locking claw on the diagonally inner front side of the lens 51 Engages with the engaging portion of the case main body 42 (both not shown), and the screw 56a penetrating the boss portion 56 on the obliquely outer rear side of the lens 51 is tightened into the tightening portion 42b of the case main body 42. Thus, the lens 51 is fixed to the case body 42.

  Referring also to FIG. 5, the case main body 42 includes a reflector 43 that swells obliquely inward and rearward at the inner side thereof, and an outer side from the front opening side edge as a part of the reflector 43. An extension (extension part) 46 extending toward is integrally formed. The reflector 43 forms the lamp chamber 47 together with the main lens portion 53 of the lens 51. Further, the extension 46 is configured as an opposing wall portion having a predetermined gap with respect to the lens extension 54 of the lens 51.

  The bottom wall portion 44 of the reflector 43 has a flat plate shape that is inclined so as to be located rearward as it is located outward. A valve socket 49 at the front end of the main harness is detachably attached to a portion of the bottom wall portion 44 on the diagonally outer rear side, and a valve 48 is inclined from the diagonally inner rear to the diagonally outer front side in the valve socket 49. The lamp chamber 47 is held so as to face it. At least the outer wall 45 of the reflector 43 forms a parabolic reflecting surface 45a so as to distribute the bulb light forward.

  Each surface of the case body 42 on the lens body 52 side is subjected to aluminum vapor deposition plating so as to form each reflecting surface including the reflecting surface 45a of the reflector 43. On the other hand, the portion of the lens body 52 on the case body 42 side has an arcuate cross-sectional shape extending obliquely so as to be located upward as it is located obliquely outward and rearward (in other words, along the longitudinal direction of the lamp case 41). A plurality of so-called flute cut lenses 52a are formed. Therefore, the bulb light from the bulb 48 is reflected directly or by each reflecting surface of the reflector 43 and reaches the main lens portion 53 of the lens body 52, and then is diffused by each flute cut lens 52a to almost pass through the main lens portion 53. It emits light over the entire area.

  Here, the extension 46 in the case main body 42 is formed with a groove portion 61 that is recessed obliquely inwardly and rearwardly (on the side opposite to the lens 51) at a substantially central portion in the vertical direction. The groove 61 extends along a reference line K passing through the bulb center (light emission center) C in a front view of the lamp case 41 and is provided substantially in parallel with the flute cut lens 52 a of the lens 51. Further, the groove 61 has a substantially U-shaped cross section that opens toward the lens 51, its outer end is adjacent to the inner side of the tightening portion 42b, and its inner end reaches the reflecting surface 45a. Provided. By such a groove 61, a substantially U-shaped notch 62 that opens to the lens 51 side is provided at the front opening side edge of the reflecting surface 45a.

  Therefore, a part of the bulb light reaching the reflection surface 45a is not reflected by the reflection surface 45a, but enters the groove portion 61 through the notch portion 62 as shown by an arrow B in the figure, and the reflector 43 passes through the groove portion 61. After being guided outward, the lens body 52 (lens extension portion 54) transmits a portion of the lens body 52 (lens extension portion 54) facing the groove portion 61 (hereinafter referred to as a facing portion 54a) to emit light on its outer surface.

  Moreover, the groove portion 61 is formed so that the depth increases toward the inner end side (valve 48 side), and the depth of the notch portion 62 is increased accordingly, whereby the outer end side (rear side) of the groove portion 61 is increased. It is easy to let the bulb light enter. Moreover, aluminum vapor deposition plating is given also to the groove part 61 inner surface, and the valve | bulb light which entered into the groove part 61 spreads to the outer end side, reflecting suitably.

  Further, as shown in FIGS. 3, 4, and 6, a small-diameter lens cut portion 63 having a substantially circular shape in a front view of the lamp case 41 extends along the longitudinal direction of the groove portion 61 in the facing portion 54 a of the lens body 52. Three are arranged side by side. Each lens cut portion 63 is formed by forming a plurality of so-called prism cut lenses 63a having a triangular cross-section along the vertical direction, and each lens cut portion 63 extends from the valve center C toward the diagonally outer rear side to form a groove portion. The bulb light entering the lens 61 is bent obliquely outward and forward so as to transmit the light along the direction substantially orthogonal to the outer surface of the lens body 52, and spot-like light is transmitted to the facing portion 54 a of the lens body 52. Contrast is generated.

  As described above, the vehicle lighting device structure in the above embodiment includes the case main body 42 in which the bulb 48 and the reflector 43 thereof are provided, and the lens 51 that covers the opening of the case main body 42. The reflector 43 is provided with an extension 46 extending outward, and the extension 46 is provided with a groove portion 61 extending along a reference line K passing through the valve center C of the valve 48 and guides the valve light through the groove portion 61. It is what I did.

  According to this configuration, a part of the bulb light from the bulb 48 can be distributed in a desired direction after being guided to the outside of the reflector 43 through the groove 61. It is possible to widen the illumination range, or to create a contrast of light along the groove 61 on the outer side of the illumination range by the reflector 43, thereby improving the merchantability of the lamp.

  Further, in the vehicle lighting device structure described above, the lens 51 is spotted by the bulb light guided through the groove portion 61 by providing the lens cut portion 63 having a small diameter at a portion facing the groove portion 61 in the lens 51. Since it is possible to emit light, it is possible to obtain an appearance as if a light-emitting diode is arranged, and to produce a high-class feeling of the lamp.

The present invention is not limited to the above-described embodiments. For example, the lens body 52 may be provided with a convex (or concave) lens 63b as shown in FIG. In addition, the lens cut portion 63 is not limited to a small-diameter circle, and may be a star shape, a character, a desired mark, or the like, and may have a configuration in which the lens cut is performed over the entire groove portion 61. Furthermore, the facing portion 54a in the lens body 52 may be a colored lens, or a colored lens may be provided in the notch 62 in the reflective surface 45a. Furthermore, the vehicle lighting device structure described above can be applied not only to a winker but also to a tail lamp or a head lamp.
And the structure in the said Example is an example of this invention, and it cannot be overemphasized that various changes are possible in the range which does not deviate from the summary of this invention not to be limited to application to a motorcycle.

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 right front turn signal of the motorcycle. It is AA sectional drawing in FIG. It is a perspective view of the state which removed the lens in the said front turn signal. It is a principal part enlarged view in FIG. It is a principal part enlarged view equivalent to FIG. 6 which shows the modification of the said Example.

Explanation of symbols

42 Case body (case)
43 Reflector 46 Extension (extension part)
48 Valve 51 Lens 61 Groove 63 Lens cut C Valve center (light emission center)
K reference line

Claims (3)

In a winker structure for a motorcycle, in which a left and right turn signal provided with a lens and a lens covering the opening of the case are provided at the front part of the left and right leg shields, respectively,
Wherein said lens of the left and right turn signal is, without an oblong triangular with a lens extension which Tsuriaga' tapered shape continuously to the outside of the main lens portion in front view,
An extension portion that is integral with the reflector and has a predetermined gap with respect to the lens extension portion is formed at a position facing the lens extension portion of the reflector ,
In the extension portion , a groove portion having a U-shaped cross section is formed so as to extend along the reference line that passes through the light emission center of the bulb and extends in the longitudinal direction of the winker, and extends to the vicinity of the outer end portion of the extension portion. And guide the bulb light through the groove,
The lens is formed with a plurality of arc-shaped flute cut lenses extending along the reference line, and the groove is disposed along the flute cut lens,
A portion facing the groove of the flute cut lens, a plurality of lens cut portion of the small diameter forming the front view substantially circular in a row along the longitudinal direction of the groove having a lens cut intersecting vertically with the reference line pieces lined, c lit Inca, the groove positions opposed to emit light to linear light, and turn signal structure for a motorcycle, characterized in that for emitting a spot-shaped light in the lens cut portion of the lens   2. The winker structure for a motorcycle according to claim 1, wherein the groove portion is formed to increase in depth in the longitudinal direction toward the valve side.   The left and right leg shield covers are detachably provided below the outer side of the left and right leg shields, respectively, and the left and right blinkers are respectively arranged along the upper edge of the left and right leg shield covers on the upper side of the left and right leg shields. The turn signal structure of a motorcycle according to claim 1 or 2, wherein

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