JPH0285036A - Dynamic focusing device for motorcycle headlight - Google Patents

Abstract

PURPOSE:To enhance the perceptivity by connecting a deflection shaft cable to extract the amount of elongation/contraction with shock absorbing devices for the front and rear wheels, allowing a detent device to grip the free end of each cable, and correcting the headlight radiating direction through a displacement device in accordance with the amount of elongation/contraction of the shock absorbing device. CONSTITUTION:One end of a deflection shaft cable 1 is fixed to the motorcycle body at an outer cylinder 1a, and deflection shaft 1b is fixed to the movable part 12 of a shock absorbing device for front wheel 11. Another deflection shaft cable 2 is alike fixed to the movable part 14 of a shock absorbing device for rear wheel 13. The free ends as the other ends of these deflection shaft cables 1, 2 are so arranged that the deflection shafts 1b, 2b become parallel and loosely fitted in fit-in holes 3a, 3b formed in a detent device 3. A gripping mechanism 3c using solenoid, etc., is furnished in this detent device 3, and the deflection shafts 1b, 2b are gripped if necessary. Further the detent device 3 is fitted with a displacement device 4 using cams, etc., and the headlight 5 is moved in response to this displacement device 4 through an arm 5b and a rotary shaft 5a installed in the upper part.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a headlamp aiming device for a two-wheeled motor vehicle, and more particularly to a dynamic aiming device.

(Prior art) The third example shows an example of a conventional aiming device for this type of headlamp.
In this figure, for example, a lower end of a headlamp 21 is rotatably supported on a vehicle body 30 by a pivot 22 having a spherical bearing, and a nut 23 is provided at the lower end of the headlamp 21.
3 is screwed into a screw 24 that is rotatably attached to the vehicle body 30. By rotating the screw 24, the nut 23 moves forward or backward, pivoting the pivot 22. As a result, the irradiation direction can be adjusted left and right.

A similar nut and screw mechanism is also provided at the lower end of the headlamp 21, making it possible to adjust the irradiation direction in the vertical direction as well.

(Problem to be Solved by the Invention) However, the conventional aiming device described above is not adjusted based on predetermined standards, for example on a motorcycle production line, or is statically adjusted when replacing a headlamp. In other words, it is static and does not respond to, for example, nose dive, which is a common behavior of automobiles when stopped. Especially in two-wheeled vehicles, where these behaviors described above are severe, it is difficult to correctly illuminate the direction of travel when driving. figure,
This caused a major problem in that it caused inconvenience in safety confirmation, and the problem was to solve this problem.

(Means for Solving the Problems) As a specific means for solving the above-mentioned conventional problems, the present invention provides a shock absorbing device for the front and rear wheels of a two-wheeled vehicle so as to extract the amount of expansion and contraction of the shock absorbing device. A connected flexible shaft cable, an engaging device provided on the parallel free end sides of the two flexible shaft cables and capable of gripping the flexible shaft of the flexible shaft cable in response to a predetermined signal, and this engagement device. A displacement device that operates in response to the amount of expansion and contraction of the shock absorption device when the attachment device is attached and the attachment device grasps the flexible shaft, and a headlight whose aim is adjusted by the displacement device. By providing a dynamic aiming device for a two-wheeled vehicle headlamp characterized by the following, the above-mentioned conventional problems can be solved as an aiming device that responds to the behavior of a two-wheeled vehicle while it is running.

(Example) Next, the present invention will be described in detail based on an example shown in the drawings.

What is indicated by reference numeral 1 in FIG. 1 is a flexible shaft cable in which a flexible shaft 1b is movably provided in an outer cylinder 1a. By fixing the flexible shaft 1b to the movable part 12 of a shock absorbing device such as a SIDIC absorber of the front wheel 11, the amount of expansion and contraction of the shock absorbing device of the front wheel 11 can be controlled by the outer cylinder 1 of the flexible shaft 1b.
It can be extracted as the amount of sliding relative to a. Furthermore, the pinch shaft cable 2 is similarly fixed to the movable part 14 of the shock absorbing device of the rear wheel 13, and the amount of expansion and contraction of the shock absorbing device of the rear wheel 13 is extracted in the same manner as described above.

The free end side, which is the other end of the flexible shaft cable 1 and the flexible shaft cable 2, is arranged so that the flexible shaft 1b and the flexible shaft 2b are parallel to each other as shown in the figure, and is fitted into the anchoring device 3. It is combined.

FIG. 2 shows the locking device 3 in more detail.
This fastening device 3 is provided with fitting holes 3a + 3b into which the flexible shafts 1b and 2b fit, and the diameters of the fitting holes 3a and 3b are equal to those of the flexible shafts 1b and 2b. As a result, the flexible shafts 1b and 2b inserted into the fitting holes 3a and 3b are not fixed to the fastening device 3. ζ Here, the locking device 3 is provided with a gripping mechanism 30 using, for example, a solenoid, which allows the flexible shaft 1b and the flexible shaft 2b to be gripped by applying an electric signal or the like from the outside.

A displacement device 4 such as a cam is attached to the locking device 3 (see Fig. 1), and the headlight 5 responds to the displacement device by a rotation shaft 5a and an arm 5b provided at the upper part. It is said that Note that the reference numeral 6 in FIG. 1 is a spring, which applies stress biased toward one side to the headlamp 5 to improve its ability to follow the displacement device 4.

The dynamic aiming device for a wheeled vehicle headlamp of the present invention configured as described above can be configured such that when the gripping mechanism 30 of the locking device 3 is linked with, for example, an operating lever (not shown) of a brake device, the brake Simultaneously with the operation, the locking device 3, the deflection shaft tb, and the deflection shaft 2b are fixed, and the nozzle dive that occurs when the brake is applied, that is, the amount of expansion and contraction of the shock absorption device of the front wheel 11 and the shock absorption device of the rear wheel 13. The locking device 3 is tilted by the difference in the amount of expansion and contraction, and the displacement device 4 rotates in accordance with this tilt to correct the downward irradiation direction of the headlamp 5.

At this time, since the present invention operates based on the difference in the amount of expansion and contraction of the shock absorbing device between the front wheel 11 and the rear wheel 13, the displacement of the front wheel 11 and the rear wheel 13 in the same direction is caused by the bending shaft 1b. , tJ1 are canceled by moving the axis 2b in the same direction, and the above-described nose dive is accurately followed.゛The above explanation has been given as an example of correction for nose dive when braking is applied, but the present invention is not limited to this. For example, a manual switch (not shown) may be provided, and for example, this switch may be activated at the start of driving. By turning on the vehicle momentarily, it is possible to start traveling after correcting for, for example, the loading of the rear cargo bed or the upward direction of the headlights caused by a passenger or the like.

In addition, as explained above, since the locking device 3 grips the deflection shaft tb and the deflection shaft 2b as necessary, the headlight 5 is prevented from vibrating more than necessary due to slight vibrations during driving. This also eliminates any inconvenience caused to the driver.

(Effects of the Invention) As explained above, according to the present invention, the flexible shaft cables are connected to the shock absorbing device for the front and rear wheels of a two-wheeled vehicle so as to extract the amount of expansion and contraction of the shock absorbing device, and A locking device is provided on the parallel free end side of the flexible shaft cable and allows the flexible shaft of the flexible shaft cable to be gripped by a predetermined signal; A dynamic aiming device for a two-wheeled vehicle headlamp includes a displacement device that operates in response to the amount of expansion and contraction of the shock absorbing device when the shaft is gripped, and a headlight whose aiming is adjusted by the displacement device. Therefore, the present invention provides a dynamic aiming device that can correct the irradiation direction of the headlight according to the difference in the amount of contraction at any time regardless of whether the vehicle is running or stopped, that is, the behavior of the two-wheeled vehicle at that time. This makes it possible to further improve visibility, and has an outstanding effect on improving traffic safety for two-wheeled vehicles.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view showing an embodiment of a dynamic aiming device for a two-wheel vehicle headlamp according to the present invention, FIG. 2 is a sectional view showing essential parts of the same embodiment, and FIG. FIG. 2 is a perspective view showing a conventional example. 1.2...flexible shaft cable la, 2a...outer cylinder lb, 2b...flexible shaft 3...locking device 3a, 3b...fitting hole 3c... - Grip mechanism 4...Displacement device 5...Headlight 5a...Rotation shaft 5b...Arm 11...Front wheel 12... Movable part 13 of the front wheel shock absorption device...
...Rear wheel 14...Movable part of rear wheel shock absorber Figure 2

Claims (1)

[Claims] A flexible shaft cable is connected to a shock absorbing device for the front and rear wheels of a two-wheeled vehicle so as to extract the amount of expansion and contraction of the shock absorbing device, and a flexible shaft cable is provided at the parallel free ends of these two flexible shaft cables. A locking device that allows the flexible shaft of a flexible shaft cable to be gripped by a predetermined signal, and a locking device that responds to the amount of expansion and contraction of the shock absorbing device when the locking device is attached and grips the flexible shaft. 1. A dynamic aiming device for a two-wheeled vehicle headlamp, comprising: a displacement device that is operated by the displacement device; and a headlamp whose aiming is adjusted by the displacement device.