JPH07100421B2 - Leveling device for motorcycle headlight device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a leveling device for a motorcycle headlight device.

[Prior Art] Conventionally, in a vehicle headlight device, since it is necessary to correctly adjust the irradiation direction, a reflector or headlight unit is held so as to be tiltable back and forth and left and right,
This is tilted by an aiming mechanism at the time of assembly adjustment, inspection, replacement, etc. to adjust the irradiation direction (aiming adjustment).

Further, since the vehicle body is supported by a suspension device so as to be able to move up and down in order to absorb vibrations, shocks, etc., the posture of the vehicle body changes depending on the load and the position on which the load is applied, which changes the irradiation direction of the headlight device. Change. In particular, when a weight is applied to the rear part, the irradiation direction becomes upward, which may dazzle the driver of the oncoming vehicle. Therefore, the adjustment of the irradiation direction by the load (leveling adjustment) can be automatically performed by remote control from the driver's seat in addition to the aiming adjustment. Such a headlamp leveling device is
In the case of automobiles, since it is generally performed by a driving means such as a motor, it is possible to make adjustments in a plurality of stages.

[Problems to be Solved by the Invention] By the way, in a motorcycle such as a motorcycle, the optical axis of the headlight is largely upward in the case of a two-seater vehicle compared to when a single-seater vehicle is used. The influence on the driver traveling in front is larger than that of a general automobile, and thus leveling adjustment is required to correct this. At present, it is not obligatory to install this type of leveling device, but in Europe and elsewhere, standards have been set and mandatory installation is being considered. In that case, it may be considered to use the automobile leveling device in a two-wheeled vehicle, but the automobile leveling device is expensive because it is used in a plurality of upper and lower stages or stepless adjustment, and also uses electronic parts such as a motor and a circuit. There was a problem in applying it as it was. In addition, in the case of a two-wheeled vehicle, the load changes in two steps for one to two passengers,
There has been a demand for an inexpensive one that does not require adjustment in multiple stages and that can switch the irradiation angle in two or three stages.

Therefore, the present invention has been made in view of the above-mentioned conventional problems or desires, and its object is to relatively easily perform the heading leveling adjustment and aiming adjustment. (EN) Provided is a low-cost leveling device for a motorcycle headlight device.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a frame plate on the vehicle body side in front of a bracket fixed to a lamp body in a leveling device for a headlight device for a two-wheeled vehicle in which an irradiation angle is variable. A cam that accommodates a nut having a curved surface serving as a rotation fulcrum behind the bracket, and has one end connected to an operating member and is rotated in the front-rear direction with respect to the vehicle body about the rotation fulcrum. And an adjusting screw that penetrates through the frame plate, the bracket, and the cam and is screwed and connected to the nut. Further, a spring is mounted between the frame plate and the bracket.

[Operation] In the present invention, the cam, the nut provided on the cam, and the adjusting screw screwed to the nut connect the headlight device to the vehicle body in an adjustable angle. That is, when the cam is rotated by the operating member,
By changing the distance between the vehicle body and the bracket, the headlight device rotates in the front-rear direction about its rotation fulcrum,
The irradiation angle is adjusted (leveling adjustment). When the adjusting screw moves the nut forward and backward together with the cam due to its rotation, the distance between the vehicle body and the bracket changes, so the headlight device rotates in the front-back direction about its rotation fulcrum, and the irradiation angle Is adjusted (aiming adjustment).

[Examples] Hereinafter, the present invention will be described in detail based on Examples shown in the drawings.

FIG. 1 is a side sectional view showing an embodiment of a leveling device for a motorcycle headlight device according to the present invention, FIG. 2 is an exploded perspective view of the same leveling device, and FIG. 3 is a rear view of a cam. It is a perspective view. In these drawings, reference numeral 1 denotes a two-wheeled vehicle headlight device. The headlight device 1 includes a lamp body 2 whose inner surface forms a reflecting surface, a front lens 3 for covering a front opening of the lamp body 2, and a lamp body 2. A rim 4 provided on the front upper part of the vehicle body and fixed to the vehicle body side, a headlamp bulb 5 arranged in the lamp body 2, and a bulb 5 fitted to the rear top portion of the lamp body 2.
It is composed of a back cover 7 for covering the socket 6 of FIG. A spring mounting portion 8 is integrally projectingly provided on the upper surface of the lamp body 2, and a plate spring 9 is interposed between the spring mounting portion 8 and the inner surface of the rim 4, whereby the headlamp device 1 is provided. A front and rear turning fulcrum O is formed.

Reference numeral 13 is a leveling device that is also provided at the bottom of the headlight device 1 and also serves as an aiming adjustment.
A cam 15 having an L-shaped bracket 14 attached to the lower surface of the lamp body 2 and holding a nut 16 behind it.
Is provided.

The bracket 14 has a horizontal portion 14a fixed to the lower surface of the lamp body 2 by a plurality of setscrews 17, and a vertical portion 14a.
An insertion hole 19 for inserting the adjusting screw 18 is formed in the center of b.

As shown in FIGS. 2 and 3, the cam 15 is composed of a substantially wedge-shaped block whose thickness on the lower end side gradually decreases from that on the upper end side. A slanted oblique long hole 20 is formed. This long hole 20
Has a front end that opens from the upper half of the front surface 15a of the cam 15 to the front half of the upper surface 15b, and a rear end that opens from the upper portion of the back surface 15c to the lower surface 15d of the cam 15. Grooves 21 and 22 for holding the nut 16 are formed on both left and right side walls of the elongated hole 20. One end of each of these grooves 21 and 22 is opened to the back surface 15c, and the other end thereof extends partway inside the elongated hole 20. Like the elongated hole 20, the grooves 21 and 22 are formed obliquely rearward and downward.

On the upper portion of the front side of the cam 15, projections 24 that appropriately project forward are provided integrally on both sides of the slot 20 with the front opening of the slot 20 interposed therebetween. The protrusion 24 is formed in a semi-cylindrical shape, and when the cam 15 is operated, the vertical portion 14b of the bracket 14 is operated.
It comes into contact with the back side of and gives a click feeling.

Pin mounting portions 28 and 29 formed by coaxially forming insertion holes 27 through which the connecting pins 26 are inserted are attached to both ends of the lower surface of the cam 15. One end of a wire 30 forming an operating member of the cam 15 is connected to the pin 26, and the other end of the wire 30 is connected to a handle or a switching lever (not shown) provided in the vicinity thereof.

The nut 16 has a threaded hole 31 formed in a cylindrical shape and penetrating in the radial direction, and the groove 2 is formed from the rear of the cam 15.
Both ends thereof are held in the insides of 1 and 22 and are rotatably inserted and arranged, and screwed into the adjusting screw 18.

The adjusting screw 18 is connected at its head to an L-shaped frame plate 33 arranged in front of the bracket 14, and the frame plate 33 is a vehicle body.
It is fixed to 11 by welding. Further, the adjusting screw 18 is screwed into the screw hole 31 of the nut 16 through the insertion hole 19 of the bracket 14, and the tip end thereof is provided with the cam 15.
It penetrates through the long hole 20 and projects to the rear of the cam 15. Between the frame plate 33 and the bracket 14, a bracket 14, in other words, a compression coil spring 34 for urging the headlight device 1 backward is mounted and mounted on the adjusting screw 18.

FIGS. 4 (a) and 4 (b) are views showing a state before the leveling adjustment and a state after the adjustment of the leveling device 13 having such a configuration. In this case, cam from the center O of the nut 16
The distance D to the upper surface 15b of 15 is set larger than the distance D ₁ from the center O to the front surface 15a (D> D ₁ ).

In the state before leveling adjustment shown in FIG. 4A, the cam 15 is held substantially horizontally with the front surface 15a facing downward, and the upper surface 15b is in close contact with the rear surface of the vertical portion 14b of the bracket 14. At this time, the headlight device 1 is set to a normal (one person sitting) irradiation angle. In this state, when a luggage is placed on the rear seat or a passenger rides, the load is applied to the rear part of the vehicle body and the headlight device 1 faces upward. Therefore, when the switching lever near the handle is operated to rotate the cam 15 clockwise about 90 degrees around the nut 16 as shown in FIG. 4 (b), the front surface 15a of the cam 15 is perpendicular to the bracket 14. Close to the back of part 14b. When operating this cam 15, the protrusion 24
By pressing 14 against the compression coil spring 34 and the pressing force is reduced immediately before the end of rotation, a click feeling is given to the operator's hand. When the front surface 15a is in close contact with the bracket 14 and the cam 15 is approximately 90 degrees rotation, the bracket 14 is retracted by the force of only the compression coil spring 34 the difference D-D _1, whereby the headlamp apparatus 1 times The irradiation angle is adjusted downward (leveling adjustment) by rotating counterclockwise about the fulcrum O (FIG. 1).

Next, when aiming adjustment of the headlight device 1,
The adjusting screw 18 is rotationally adjusted in the state of FIG. Then, depending on the rotation direction, the nut 16
Moves forward or backward with the cam 15 along the adjusting screw 18, and when forward, pushes the bracket 14 forward against the compression coil spring 34, and when backward,
The force of the compression coil spring 34 moves the bracket 14 backward. Therefore, the headlight device 1 is rotated forward or backward around the rotation fulcrum O to adjust the irradiation angle as in the leveling adjustment.

In this embodiment, the cam surface of the cam 15 is the front surface 15a and the top surface 1
Although the description has been made of the case where the two fronts 15b are used and the one-step leveling adjustment is performed by the front surface 15a, the present invention is not limited to this, and for example, they are inclined at approximately 45 degrees between them. When the oblique cam surface is provided, the leveling adjustment can be adjusted in two steps.

[Advantages of the Invention] As described above, in the leveling device for a motorcycle headlight device according to the present invention, the angle of the headlight device can be adjusted in the front-rear direction with respect to the vehicle body by the cam, the nut, and the adjusting screw. Since the headlamp device is connected and rotated by rotating the cam, the irradiation angle of the headlamp device can be adjusted according to the change in load, and when the adjusting screw is rotationally adjusted, Since the cam moves back and forth to adjust the aiming of the headlight device, it also serves as the aiming device. Further, since the cam rotates around the nut during the leveling adjustment, the leveling adjustment can be performed smoothly and surely. Moreover, since only one spring is required, the structure is relatively simple, the number of parts is small, and it can be provided at low cost.
The effect is very large.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an embodiment of a leveling device for a motorcycle headlight device according to the present invention, FIG. 2 is an exploded perspective view of the same leveling device, and FIG. 3 is a rear view of a cam. FIGS. 4A and 4B are perspective views showing a state before the leveling adjustment of the leveling device and a state after the adjustment. 1 ... Headlight device, 2 ... Lamp body, 3 ... Front lens, 4 ... Rim, 5 ... Bulb, 9 ... Leaf spring, 11 ...
Body, 13 …… Leveling device, 14 …… Bracket, 15…
… Cam, 16 …… Nut, 18 …… Adjusting screw, 19 …… Insertion hole, 20 …… Long hole, 30 …… Wire, 31 ……
Screw hole, 34 ... Compression coil spring.

Claims (1)

[Claims] 1. A leveling device for a headlight device for a two-wheeled vehicle, wherein an illumination angle is variable, wherein a frame plate on the vehicle body side is arranged in front of a bracket fixed to a lamp body, and serves as a rotation fulcrum behind the bracket. A cam having a curved surface is housed, one end of which is connected to the operating member and which is rotated in the front-rear direction with respect to the vehicle body with the rotation fulcrum as a fulcrum. The cam also penetrates the frame plate, the bracket and the cam. A leveling device for a headlight device for a motorcycle, comprising: an adjusting screw screwed to the nut; and a spring mounted between the frame plate and the bracket.