JP2002205594A - Vehicular headlight mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the design of a vehicle by minimizing a clearance between a lens and a front opening. SOLUTION: A vehicular headlight mounting structure mounts a headlight 61 in which a lamp case 63 supporting a bulb 62 and having a reflecting surface 67 is closed by the lens 64, so that the headlight is swingable on a support boss 71 (aiming axis) and that the lens is exposed through the front opening 83 in a front cover 81 (vehicle body cover). The lens 64 has a substantially spherical overall shape, and has spherical portions 75 and 76 substantially conforming to a circular arc about the support boss 71 (aiming axis) in regions near an upper edge 83a and a lower edge 83b of the front opening 83.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a headlamp having a lamp case which supports a bulb and has a reflecting surface and which is closed by a lens. The present invention relates to a headlight mounting structure for a vehicle that is mounted in an exposed state.

[0002]

2. Description of the Related Art For example, Japanese Patent Publication No. 6-53472 entitled "Optical Axis Adjusting Apparatus for Motorcycles" is known as a vehicle headlight mounting structure. According to the above technique, according to FIG. 6 of the publication, an opening 14a is opened in the front cover 14 and the opening 1a is opened.
An optical axis adjusting device for a motorcycle or the like provided with a trapezoidal headlight 17 facing side 4a and adjusting optical axes of the headlight 17 with optical axis adjusting screws 26 and 29.

[0003]

However, the optical axis adjusting device of a motorcycle or the like according to the above-mentioned technology has optical axis adjusting screws 26 and 29.
When the optical axis of the headlight 17 is adjusted, the gap between the headlight 17 (hereinafter, referred to as "headlight") and the opening 14a changes, and the gap may be increased depending on the adjustment. If the gap is large, appearance is not good as a design of appearance, and water and dust enter the front cover 14 to easily stain the inside.

Accordingly, an object of the present invention is to reduce the air resistance around the headlight, improve the design of the vehicle, and prevent water and dust from entering the gap between the headlight and the vehicle body cover. It is an object of the present invention to provide a headlamp mounting structure for a vehicle that can perform the same.

[0005]

In order to achieve the above object, a first aspect of the present invention is to enable a headlamp, which supports a bulb and has a lamp case having a reflecting surface, closed by a lens, so that the headlamp can swing about an aiming axis. In addition, in a headlight mounting structure for a vehicle in which a lens is mounted in a state where the lens is exposed from a front opening of a vehicle body cover, the lens has a substantially spherical shape as a whole, and an aiming shaft is provided near an upper edge and a lower edge of the front opening. The lens is characterized in that a spherical portion is formed so as to substantially follow an arc centered at.

It is desirable to reduce the air resistance around the headlight and to improve the design of the vehicle. Therefore, by making the lens almost spherical,
Reduce air resistance around headlights. By forming a spherical portion on the lens near the upper and lower edges of the front opening so as to substantially follow an arc centered on the aiming axis, for example, the gap between the lens and the front opening is minimized. As a result, the design of the vehicle is improved, and water and dust are prevented from entering the gap between the vehicle body cover and the headlight.

According to a second aspect of the present invention, a substantially spherical surface is enlarged by providing an extended portion extending at least the upper end of the lens, and the extended portion is extended along a cover portion extended from the lamp case, so that the light of the bulb is increased. A light-shielding treatment for blocking light.

For example, if a light-shielding treatment can be performed on a lens without using a special member, the cost of a headlight can be reduced. Therefore, by providing an extended portion extending at least the upper end of the lens, the surface of the substantially spherical shape is enlarged, and by extending the extended portion along the cover portion extended from the lamp case, a light shielding treatment is performed, and a headlight is provided. Reduce costs. By forming an extended portion integrally with the upper end of the lens and enlarging the substantially spherical surface, the lens can be formed into a large dome shape, and the design of the front portion of the vehicle can be enhanced.

According to a third aspect of the present invention, the cover portion is extended to both side surfaces of the lamp case, and support bosses are provided on the both side surfaces, respectively, and these support bosses also serve as aiming shafts. By extending the cover to both sides of the lamp case and providing support bosses on both sides,
Increase the rigidity of the lamp case. By providing support bosses on a lamp case having increased rigidity and using these support bosses also as an aiming shaft, accuracy of aiming adjustment (optical axis adjustment) of a headlight is improved.

According to a fourth aspect of the present invention, the support boss is located above the optical axis of the bulb. By positioning the support boss above the optical axis of the bulb and supporting the headlight by suspending the headlight with the support boss, the weight balance of the headlight is maintained, and the headlight support is stabilized.

[0011]

Embodiments of the present invention will be described below with reference to the accompanying drawings. Note that "before", "after",
“Left”, “right”, “up”, and “down” follow the direction viewed from the driver, and Fr indicates the front side, Rr indicates the rear side, L indicates the left side, and R indicates the right side. Also, the drawings should be viewed in the direction of reference numerals.

FIG. 1 is a side view of a motorcycle employing a vehicle headlight mounting structure according to the present invention. A motorcycle 10 as a vehicle includes a body frame 11, a front fork 12 attached to a head pipe 11a of the body frame 11, a front wheel 13 attached to the front fork 12,
A handle 14 connected to the front fork 12, a power unit 15 attached to the rear of the body frame 11 so as to be able to swing up and down, a rear wheel 16 attached to the power unit 15, and a rear cushion unit 17 suspended at the rear end of the power unit 15. A scooter-type motorcycle mainly includes a storage box 18 mounted on the upper rear portion of the body frame 11 and a seat 19 disposed on the storage box 18 and mounted to be openable and closable.

The power unit 15 includes a front water-cooled engine 21 and a rear power transmission mechanism 22. The engine 21 has a cylinder head arranged substantially horizontally with the front facing forward.

The motorcycle 10 includes a body frame 1.
1 is covered with a body cover 24. The body cover 24 includes a front cover 81 as a vehicle body cover that covers the front portion of the head pipe 11a, a leg shield 26 that covers the front of the driver's leg, and a step floor (low floor footrest plate) on which the driver's feet are placed. 27, left and right floor side covers 28 extending downward from the outer edge of the step floor 27
An under cover 29 covering the lower edges of the floor side covers 28; a seat lower front cover 31 covering the front half of the storage box 18; and a seat lower rear covering the rear half of the storage box 18 and the rear of the vehicle body. A cover 32,
Left and right side covers 33 extend downward from the front and rear covers 31, 32 below the seat.

Further, in the motorcycle 10, a main switch 34 is disposed at the leg shield 26, and a fuel tank 35 and a fuel pump 36 are provided below the step floor 27.
And a radiator reserve tank 37, a battery 38, and a control unit 39 are arranged at the rear upper end of the vehicle body frame 11. The motorcycle 10
Employs a vehicle headlight mounting structure 60 (hereinafter, abbreviated as "headlight mounting structure 60") that can reduce the air resistance around the headlight 48 and improve the design of the vehicle. Vehicle.

In the figure, 41 is an air cleaner, 42 is a carburetor, 43 is a radiator for cooling an engine, 44 is an exhaust pipe for an engine, 45 is an exhaust muffler, 46 is a front fender, 47 is a rear fender, 48 is a horn, and 49 is a meter. It is.

Further, 51L and 51R are left and right handle grips, 52L and 52R are left and right brake levers, and 53L and 53R are left and right brake levers 52L and 52L.
A brake switch as a switch operated by the 52R,
Reference numeral 54 denotes a water temperature sensor for detecting a water temperature of the engine 21;
Is a speed sensor provided on the rear wheel 16 side of the power transmission mechanism 22 for detecting the vehicle speed, 56 is a fuel unit mainly composed of a resistor for detecting the remaining amount of fuel, 57 is a stop lamp, 58 Is the stop lamp 57
Lighting circuit unit for turning on, 59L, 59R
The right turn signal, He is a helmet. The speed sensor 55 is preferably a hall sensor using a hall element.

FIG. 2 is a side view of a headlight mounting structure for a vehicle according to the present invention. The headlight mounting structure 60 has a front opening 81 formed in a front cover 81.
The structure is such that a headlight 61 is faced to reduce air resistance around the headlight 61 and the motorcycle 10 (FIG. 1).
(See Reference Design).

FIG. 3 is a side view of a headlamp employed in the vehicle headlamp mounting structure according to the present invention. The headlamp 61 includes a lamp case 63 for supporting a bulb 62 and a lamp case 63. It comprises an approximately spherical lens 64 covered and an optical axis adjusting mechanism 65 formed around the lamp case 63. The lamp case 63 includes a reflecting surface 67 for reflecting the light of the bulb 62, a circumferential portion 68 extending forward from the reflecting surface 67, a cover portion 69 formed to be folded from the circumferential portion 68, and a front cover. It comprises support bosses 71 and 71 (a back side 71 is not shown) as aiming shafts which are attached to the 81 side so as to be swingable, and a fitting portion 72 which is fitted to a component of the optical axis adjusting mechanism 65. 63a ... (...)
Indicates a plurality. The same applies hereinafter) is a stopper for stopping the lens 64 on the lamp case 63.

The lens 64 includes a transmitting portion 73 for transmitting the light of the bulb 62, an extending portion 74 for performing light-shielding treatment described later, and spherical portions 75 and 76 formed at both ends. 64a... Are nails for stopping the lens 64 with the lamp case 63.

FIG. 4 is a front view of a headlamp employed in the vehicle headlamp mounting structure according to the present invention.
Are the support bosses 71, 7 of the lamp case 63 described above.
1 (Aiming shaft) and fitting portion 72 of lamp case 63
An optical axis adjusting screw 78 screwed into the fitting portion 72; and a bracket 7 rotatably mounted on the optical axis adjusting screw 78.
9 and mounting portions 87, 87 formed on the front cover 81 (see FIG. 1) side for mounting the bracket 79.
And support portions 86, 86 formed on the front cover 81 for rotatably mounting the support bosses 71, 71 (aiming shafts). The shape of the support portion 86 formed on the front cover 81 side will be described in detail with reference to FIG. 6, and the shape of the mounting portion 87 will be described in detail with reference to FIG.

FIG. 5 is a perspective view of a vehicle body cover employed in the vehicle headlight mounting structure according to the present invention. The front cover 81 (vehicle body cover) has a front opening 83 formed in a main body portion 82 and a light An optical axis adjusting hole 84 for adjusting the optical axis adjusting screw 78 of the axis adjusting mechanism 65 (see FIG. 4) from outside the front cover 81 is formed to allow sound emitted from the horn 48 (see FIG. 1) to pass through. Horn holes 85 ...
The support portions 86, 86 for rotatably supporting the support bosses 71, 71 of the lamp case 63 (see FIG. 4) are formed, and the mounting portions 87, 87 for attaching the bracket 79 (see FIG. 4) of the optical axis adjusting mechanism 65 are formed. It is formed.

FIG. 6 is a sectional view taken along the line 6-6 in FIG. 5, and shows a sectional view of the support portion 86 of the front cover 71. Support part 8
6 has ribs 86a, 86a formed in the main body 82, these ribs 86a, 86a are connected to each other by a flat member 86b, and a keyhole-shaped support hole 86 is formed in the flat member 86b.
c (see FIG. 5 for the shape).

FIG. 7 is a sectional view taken along the line 7-7 in FIG. 5, and shows a sectional view of the mounting portion 87 of the front cover 71. The mounting portion 87 is formed by forming a boss 87a in the main body 82, forming a screw hole 87b in the boss 87a, and forming reinforcing ribs 87c in the boss 87a.

FIG. 8 is a sectional view taken along line 8-8 of FIG. The headlight mounting structure 60 is capable of swinging a headlight 61 having a lamp case 63 provided with a reflecting surface 67 and supporting a bulb 62 and closed by a lens 64 around a support boss 71 (aiming axis) and a front cover. In a headlight mounting structure for a vehicle in which the lens is mounted in a state where the lens is exposed from the front opening 83 of the vehicle body cover 81, the lens 64 is formed to have a substantially spherical shape as a whole, and the upper edge 83a and the lower edge of the front opening 83 are formed. In the vicinity of the edge 83b, it can be said that the spherical portions 75 and 76 are formed in the lens 64 so as to substantially follow an arc centered on the support boss 71 (the aiming axis).

It is preferable to reduce the air resistance around the headlight 61 and to improve the design of the motorcycle 10 (see FIG. 1). Thus, the overall resistance of the lens around the headlight 61 is reduced by making the lens substantially spherical. Upper edge 83a and lower edge 83 of front opening 83
In the vicinity of “b”, the lens 64 has a spherical portion 75, which almost follows an arc centered on the support boss 71 (the aiming axis).
By forming 76, for example, the gap between the lens 64 and the front opening 83 is minimized. As a result, the motorcycle 10
The design of (see FIG. 1) can be improved, and water and dust can be prevented from entering the gap between the front cover 81 (vehicle cover) and the headlight 61.

The headlight 61 is provided with support bosses 71, 71.
(The back side 71 is not shown) is positioned above the optical axis C of the bulb 62. Support boss 71,
By positioning the head 71 above the optical axis C of the bulb 62 and supporting the headlight 61 in a suspended state with the support bosses 71, 71, the weight balance of the headlight 61 is maintained, and the headlight 61 is supported. Can be stabilized. The optical axis adjustment mechanism 65
The load of the headlight 61 is dispersed and supported at three points, namely, the support bosses 71, 71 located above the optical axis C and the optical axis adjusting screw 78 located below the optical axis C. Therefore, the support of the headlight 61 can be further stabilized.

FIG. 9 is a sectional view taken along the line 9-9 in FIG. 4. In the headlamp 61, the cover 69 is extended to both sides of the lamp case 63, and support bosses 71, 71 are provided on both sides. , These support bosses 71, 71 also serve as aiming shafts. By extending the cover portion 69 to both side surfaces of the lamp case 63 and providing support bosses 71, 71 on both side surfaces thereof, the lamp case 63 is provided.
Increase rigidity. The support bosses 71, 71 are provided on the lamp case 63 having increased rigidity, and the support bosses 71, 71 also serve as aiming axes, thereby improving the accuracy of the aiming adjustment (optical axis adjustment) of the headlight 61. . Note that 77
Is a seal member for sealing the lamp case 63 and the lens 64.

The headlight mounting structure 60 for a vehicle described above.
The operation of will be described below. FIGS. 10A to 10C are first operation explanatory views of the vehicle headlamp mounting structure according to the present invention. 3A shows a state in which the optical axis of the headlight 61 is horizontal. In (b), the optical axis of the headlight 61 is tilted by the optical axis adjusting mechanism 65 as shown by the arrow, and aiming adjustment (adjustment of the optical axis) is performed. In (c), the optical axis of the headlight 61 is further inclined as shown by the arrow.

3A to 3C, the support boss 71 is provided near the upper edge 83a and the lower edge 83b of the front opening 83.
Since the spherical portions 75 and 76 are formed on the lens 64 so as to substantially follow an arc centered on (the aiming axis), for example,
The gap between the lens 64 and the front opening 83 does not change due to the aiming adjustment. That is, the gap is constant. As a result, the gap between the lens 64 and the front opening 83 can be minimized, and the design of the motorcycle 10 (see FIG. 1) can be improved. Although the optical axis C is adjusted so as to be directed downward from horizontal as shown by the arrow, it is also possible to adjust the optical axis C upward from horizontal.

FIG. 11 is a diagram illustrating a second operation of the headlight mounting structure for a vehicle according to the present invention.
Is an extension 74 extending at least the upper end of the lens 64.
By expanding the surface of the substantially spherical shape by providing
The cover part 6 in which the extension part 74 is extended from the lamp case 63
It can be said that a light-shielding treatment for blocking the light of the bulb 62 (see FIG. 8) has been performed by following the line 9.

For example, the cost of the headlight 61 can be reduced if the lens 64 can be shielded without using any special member. Therefore, by providing an extension 74 extending at least the upper end of the lens 64 to enlarge the substantially spherical surface, and by extending the extension 74 along the cover 69 extending from the lamp case 69, the lens 64 is shielded from light. A measure is taken to reduce the cost of the headlight 61. The extension 74 is integrally formed on the upper end of the lens 64.
Is formed, and by enlarging the substantially spherical surface, the lens can be formed into a large dome shape. As a result, the design of the front part of the vehicle can be enhanced. Also, as shown in the figure, the driver M does not become obstructed even though the lens 64 surface of the headlight 61 faces upward.

In the embodiment, as shown in FIG. 3, the lens 64 is formed in a spherical shape. However, the spherical shape may be any generally spherical shape (overall substantially spherical shape).

[0034]

According to the present invention, the following effects are exhibited by the above configuration. According to the first aspect of the present invention, a headlamp, which supports a bulb and has a lamp case provided with a reflective surface, is closed with a lens so that the headlamp can swing about an aiming axis and the lens is exposed from a front opening of a body cover. In the headlight mounting structure of a vehicle, the lens has a generally spherical shape as a whole, and near the upper and lower edges of the front opening, a spherical portion is formed on the lens so as to almost follow the arc around the aiming axis Therefore, for example, the gap between the lens and the front opening can be minimized. As a result, the design of the vehicle can be improved, and water and dust can be prevented from entering the gap between the vehicle body cover and the headlight.

According to a second aspect of the present invention, the substantially spherical surface is enlarged by providing an extension extending at least the upper end of the lens, and the extension of the lens extends along the cover extending from the lamp case. , The cost of the headlight can be reduced. Also, by forming an extended portion integrally at the upper end of the lens and enlarging the substantially spherical surface, the lens can be made into a large dome shape. As a result, the design of the front part of the vehicle can be enhanced.

According to the third aspect, the cover portion is extended to both side surfaces of the lamp case, and the support boss is provided on each of both side surfaces, so that the rigidity of the lamp case can be increased. Since the supporting bosses are provided on the lamp case with increased rigidity, and these supporting bosses also serve as the aiming shaft, the accuracy of the aiming adjustment (optical axis adjustment) of the headlight can be improved.

According to a fourth aspect of the present invention, the weight balance of the headlight can be maintained by positioning the support boss above the optical axis of the bulb and, for example, supporting the headlight in a suspended state with the support boss. . As a result, the support of the headlight can be stabilized.

[Brief description of the drawings]

FIG. 1 is a side view of a motorcycle employing a vehicle headlight mounting structure according to the present invention.

FIG. 2 is a side view of a vehicle headlight mounting structure according to the present invention.

FIG. 3 is a side view of the headlight employed in the vehicle headlight mounting structure according to the present invention;

FIG. 4 is a front view of a headlight employed in the vehicle headlight mounting structure according to the present invention.

FIG. 5 is a perspective view of a vehicle body cover employed in the vehicle headlight mounting structure according to the present invention.

FIG. 6 is a sectional view taken along line 6-6 in FIG. 5;

FIG. 7 is a sectional view taken along line 7-7 of FIG. 5;

8 is a sectional view taken along line 8-8 in FIG. 4;

FIG. 9 is a sectional view taken along line 9-9 in FIG. 4;

FIG. 10 is a first view of a vehicle headlight mounting structure according to the present invention;
Action explanation diagram

FIG. 11 is a second view of the vehicle headlight mounting structure according to the present invention.
Action explanation diagram

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Vehicle (motorcycle), 61 ... Headlight, 62 ... Bulb, 63 ... Lamp case, 64 ... Lens, 67 ... Reflection surface, 69 ... Cover part, 71 ... Aiming shaft (support boss), 74 ... Extension part , 75, 76: spherical part, 81: body cover (front cover), 83: front opening, 83a ...
Upper edge, 83b lower edge, C optical axis.

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Claims (4)

[Claims] 1. A headlamp comprising a lamp case, which supports a bulb and has a reflecting surface, is closed by a lens so that the headlamp can swing about an aiming axis and the lens is exposed from a front opening of a body cover. In the headlight mounting structure for a vehicle to be mounted, the lens has a generally spherical shape as a whole, and near the upper and lower edges of the front opening, the lens substantially conforms to an arc centered on the aiming axis. A headlight mounting structure for a vehicle, wherein a spherical portion is formed. 2. The lamp according to claim 1, wherein an extended portion extending at least at an upper end of the lens is provided to enlarge a substantially spherical surface, and the extended portion is arranged along a cover portion extended from the lamp case, thereby providing a light emitting device. 2. A headlight mounting structure for a vehicle according to claim 1, wherein a light-shielding treatment for blocking light is performed. 3. The device according to claim 1, wherein the cover portion is extended to both side surfaces of the lamp case, and support bosses are provided on the both side surfaces, respectively, and these support bosses also serve as aiming shafts. Characteristic vehicle headlight mounting structure. 4. The headlight mounting structure for a vehicle according to claim 1, wherein the support boss is located above an optical axis of the bulb.