JPS59114181A - Indicator for direction of motorcycle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a direction display device mounted on a motorcycle.

Conventionally, improvements have been made to the mounting position of some of the direction detection sensors of electronic direction meters in automobiles (Japanese Patent Laid-Open No. 57
-103010). Here, the direction detection sensor part is
This is a geomagnetic sensor that detects the geomagnetism and detects the relative relationship (for example, angle) between the direction of the horizontal component and the direction of travel of the vehicle.

On the other hand, in motorcycles, a configuration is known in which a part of the direction detection sensor is mounted inside the vehicle body at the rear, but in this configuration, there are many parts that have magnetic material near the sensor, and part of the sensor is attached to the magnetic body. Not only does it have problems where it does not work correctly due to the influence of the sensor, but it is also difficult to mount it close to the surface of the vehicle, and it is difficult to adjust some parts of the sensor.

In view of the above-mentioned problems, the present invention aims to provide a direction display device in which a part of the direction detection sensor operates accurately and can be easily adjusted. It is characterized by being equipped with a part of the direction detection sensor of an electronic direction meter.

Next, the present invention will be explained based on the drawings. FIG. 1 is a schematic right side view of a motorcycle equipped with a direction display device according to the present invention, where l is a front wheel, 2 is a rear wheel, 8 is an engine, 4 is a seat, 5 is a fuel tank, and 6 is a steering hand. μ,
7 is a windshield plate. Further, as shown in FIG. 2, a shelf-shaped spring /L/8 is integrally provided inside the windshield plate 7.
A speedometer 9, a tachometer 10, and electronic devices 11 such as a radio and a car stereo are fitted into the I/8.

A fender 18 fixed to a front fork 12 connecting the first front wheel 1 and the handlebar 6 has a main component made of a non-magnetic material, such as resin or aluminum alloy. A direction detection sensor part 14 is provided on the upper surface near the front end of the fender 18, as shown in FIG. A bolt (not shown) made of non-magnetic material (aluminum copper alloy, etc.) on the fender 18
One sensor 15 is fixed to the sensor 15, and each sensor 15 has a non-magnetic body protruding upward.
16.17 is fixed. The upper surface of the sensor unit 15 is a substantially horizontally flat plane, and a sensor body 18 is mounted on the upper surface to detect the direction of the earth's magnetism using the force of the horizontal component of the earth's magnetism.

A flange 19 is integrally formed at the lower end of the sensor body 18, and as shown in FIG. 4, the flange 19 is provided with elongated holes 20. Bolts 16 and 17 are fitted into 21 and nut 2
Fixed by 2.23. A mark 24 is formed at the front end of the flange 19 to indicate a mark 25 marked on the top surface of each sensor 15. Further, as shown in FIG. 8, a cap 26 made of wood that covers the sensor body 18 from the outside is fixed to the outer periphery of the sensor unit 15 by fitting or the like. Further, as shown in FIG. 1, the sensor part 14 is connected to an amplifier 27 built inside the windshield plate 7 via a node (not shown), and the amplifier 2
7 is connected to the compass 28 of FIG. 2 via the /h-nes. The compass 28 is fitted into the spring μ8 and has a display surface as shown in FIG. That is, an alphabet indicating a direction is drawn on the outer periphery, and the direction is indicated by changing the indicated position force of the needle mark 80 displayed on the liquid crystal panel 29 in the center.

Next, the effect will be explained. For geomagnetism, the direction detection sensor part 14
The sensor main body 18 electrically detects the current, and the amplifier 27 amplifies and controls the display of the compass 28. That is, the direction of travel is notified to the fender sound transmission. Here, since the sensor part 14 is provided on the fender 18, the direction in which the steering wheel 6 is turned is not displayed, but the direction in which the driver is heading is accurately shown to the driver. Further, since there is nothing in the vicinity of the sensor part 14 provided on the non-magnetic fender 1B that affects magnetism, accurate orientation can be indicated.

On the other hand, when used in a country like Canada, which has a high latitude and is long from east to west, it is necessary to correct errors caused by the misalignment between the north pole and the magnetic pole. In this case, the cap 26 in FIG.
is removed, the nut 22.2B is loosened, and the sensor body 18 is rotated about the vertical axis using the mark 24 and the eyelid 25 as a guide, thereby making the correction. This correction method can be employed even when there is simply a misalignment between the orientation of the fender 18 and the display.

As explained above, according to the present invention, since the direction detection sensor part 14 of the electronic direction meter 28 is mounted on the front wheel fender 18 formed of a non-magnetic material, the following effects can be expected.

The direction in which the driver turned off the hand/I/6 will be displayed, and the direction the driver is heading will be displayed, making the direction display more accurate.

(c) Since the fender 18 is made of a non-magnetic material and the sensor part 14 is attached to the fender 18, there is no sound that affects the sensor itself, making it possible to easily detect the correct direction. Become.

(C) Since the sensor portion 14 is mounted on the fender 1B exposed to the outside, rather than inside the vehicle body, operations such as adjustment are easy.

According to the above embodiment, the following effects can be expected.

(a) Since the distance between the sensor part 14 and the compass on the windshield plate 7 is short, the wiring can be kept as short as possible.

('b) Since the direction display device is separated from the main wiring with a large current value, including the wiring harness, it is resistant to electrical noise.

(0) Even when used in a country like Canada, which has a high latitude and a long east-west direction, it is possible to easily correct the indication error.

Note that in carrying out the present invention, a sensor portion 14 as shown in FIG. 6 may be employed. In Figure 6, the fender
One sensor unit 81 fixed to 18 has a substantially truncated conical shape, and a substantially truncated conical cavity 82 is provided within the pedestal 81 . A large number of radial and equally spaced triangular grooves 88 (FIG. 7) are formed on the bottom surface of the cavity 82, and a hole 84 is provided at the center of the upper end of the cavity 82.

On the other hand, the lower end surface of the sensor body 85 housed in the cavity 82 has a shape corresponding to the triangular groove 88 (FIG. 7) of the cavity 82, and the lower end surface of the sensor body 85 is engaged with the bottom surface of the cavity 82. are doing. Also, the upper end of the sensor main body 85 has a hole 84.
A spring 87 is compressed between the upper part of the cavity 82 and the shoulder part 86 of the sensor main body 85. A four-striped section 88 is formed on the upper end surface of the sensor body 35, and a removable rubber lid 4o is attached to the center of the upper end of the resin cap 39 fixed to the fender 13. ing.

In this case, correction can be made by removing the lid 4o and inserting a seat bar or a coin into the four parts 88 from above.
Try to rotate it. The diameter of the lid 40 is made larger than that shown in FIG.
The degree of rotation of the sensor main body 85 may be determined from the relationship between these marks and the eyes. On the other hand, as shown in FIG. 8, as a display method of the direction meter 28, the display of the alphabetical part indicating the direction on the outer circumference may be changed.

[Brief explanation of drawings]

Fig. 1 I is a schematic right side view of a motorcycle equipped with a direction display device according to the present invention, Fig. 2 is a partial view in the direction of the Figure 4 is the 8th
The IV-IV sectional view in the figure, Figure 5 is the front view of the compass, and Figure 6 is the front view of the compass.
The figure is a longitudinal sectional side view of a part of the direction detection sensor showing another embodiment, FIG. 7 is a partial cross-sectional view taken along the line ■-■ of FIG. 6, and FIG. 8 is a front view showing another embodiment of the direction meter. . 1...front wheel, 1
8...Fender-114...Part of direction detection sensor,
28...Direction needle patent filed; Applicant Kawasaki Heavy Industries Co., Ltd. Agent Patent Attorney Tadaka Omori 11.), ・-;j
i'￥jFigure 2

Claims (1)

[Claims] A direction display device for a motorcycle, characterized by having a part of an electronic direction needle direction detection sensor attached to a front wheel fender made of a non-magnetic material.