JPS6217285Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a vehicle height adjustment device for a two-wheeled vehicle or the like.

Conventionally, adjusting the vehicle height of a two-wheeled vehicle required extremely complicated operations such as adjusting the spring bearing position of a vehicle suspension spring. Furthermore, although the height of a four-wheeled vehicle can be relatively easily adjusted by adjusting the air pressure in an air spring, it has been difficult to adjust the height of a four-wheeled vehicle while the vehicle is running due to vibrations. Therefore, an object of the present invention is to provide a device that can automatically adjust the vehicle height of a two-wheeled vehicle, a four-wheeled vehicle, etc. while the vehicle is running.

The vehicle height adjustment device according to the present invention has guide grooves provided on the inner surfaces of both sides of a rectangular frame, a pattern plate is slidably fitted therein, and a polar pattern detector and an allowable displacement are provided on the bridging sides of the rectangular frame. Attach a width pattern detector and a power supply facing each of the detectors,
A polarity discrimination pattern of a transparent groove extending in the sliding direction of the pattern plate with one end at a position facing the polarity discrimination pattern detector on the pattern plate and a position facing the allowable displacement width pattern detector in the sliding direction. When the output signal of the allowable displacement width pattern detector disappears for a predetermined period of time, the vehicle height increases or increases depending on the presence or absence of the output signal of the polarity discrimination pattern detector. The gist is that an electric circuit is provided to send out a vehicle height reduction signal, so that the vehicle height can be adjusted even while driving, and the adjustment is also extremely easy.

FIG. 1 is a front view of the vehicle height fluctuation detector, and FIG. 2 is a cross-sectional view taken along line A-A. Guide grooves are provided on the inner surface of both sides of a rectangular frame 1, and a pattern plate 2 is slidably fitted therein. At the same time, a polarity discrimination pattern detector 3 and an allowable displacement width pattern detector 4 made of, for example, photoelectric elements are installed on the bridging side, and appropriate light sources 5 and 6 facing them.
is installed. The pattern plate 2 also has a polarity discrimination pattern 7 extending in the sliding direction of the pattern plate with one end facing the detector 3, and a polarity discrimination pattern 7 extending in the sliding direction centering on the position facing the detector 4. A permissible displacement width pattern 8 having a length of These patterns are transparent grooves, and when the patterns face the detector 3 or 4, the light from the light sources 5 and 6 enters the detector and an output signal is sent out. For example, the pattern plate 2 described above is tied to the tip of a flexible cable 9, the sheath is fixed to the frame 1, and the base end of the flexible cable is tied to a swing arm or a bearing of a front wheel of a two-wheeled vehicle, or Alternatively, the frame 1 and pattern plate 2 are directly connected to the vehicle body, axle portion, etc. Therefore, the pattern plate 2
moves as shown by the arrow s, and the output signals of the detectors 3 and 4 are turned on and off accordingly.

The output signals of the above-mentioned polarity discrimination pattern detector 3 and allowable displacement width pattern detector 4 are applied to the terminals 10 and 11 in FIG. If the pattern plate 2 is assumed to vibrate evenly from the reference position to the left and right as shown in FIG.
transmits a rectangular wave with a duty factor of 1 as shown in FIG. 4a. Moreover, when the vibration range shifts to the left, the above-mentioned factor becomes smaller as shown in b, and when it shifts to the right, it increases as shown in c. Since such a rectangular wave is applied to the smoothing circuit 12 from the terminal 10, a signal as shown in FIG. 5d whose amplitude changes depending on the duty factor is applied to the shaping circuit 13.
Further, the allowable displacement width pattern detector 4 sends out a rectangular wave as described above when the pattern plate 2 vibrates beyond both ends of the pattern 8 at approximately the reference position.
When the pattern plate 2 vibrates at a position significantly deviated to the right or left, the detector 4 no longer faces the pattern 8. Therefore, a signal such as e is applied to the terminal 11 in response to the signal d.

The dashed line in FIG. 5d shows a state in which the duty factor of the signal at the terminal 10 is 1. The shaping circuit 13 uses this value as a threshold value to shape the signal d into a rectangular wave, so it is passed to the differentiating circuit 14. is added with the signal of FIG. 5f, and a bidirectional differential signal g is sent out.
Also, the negation signal of signals e and f is AND gate 1
5, the negation of the signal f, and the signal e are applied to the NOR gate 16, so that these gates deliver signals as indicated by h and i, respectively, in FIG. Integrators 17 and 18 integrate these signal voltages, and when the integrated value exceeds a preset detection level p, they send out a signal to increase or decrease the vehicle height, and when signal g is added, they are reset. Ru. j and k in Fig. 5 indicate the above-mentioned integral values, and when this integral value exceeds the detection level p, signals l and m are sent out.For example, if high-pressure gas is sent to the hydraulic shock absorber for vehicle suspension, Otherwise, the enclosed gas is exhausted and the vehicle height is automatically adjusted. When the pattern plate 2 returns to the standard position by this adjustment, the signal g is sent out and the integrator is reset.

As described above, the device of the present invention has the polarity discrimination pattern 7 and the allowable displacement width pattern 8, and as shown in FIG.
As shown by the X and Y sections in Figure 5, the pattern 8 vibrates in a position not facing the detector 4, and the output of the smoothing circuit 12 in Figure 3 does not intersect with the chain line in Figure 5 d for a considerable period of time. When the differential signal g is not continuously sent out over the period of time, the vehicle height adjustment signal l or m is sent out. Also, pattern 7 is the detector 3
The output signal of the shaping circuit 13 is turned on or off as shown in FIG. Decrease can be determined. Furthermore, since the above-mentioned detection can be carried out in the vibration state of the pattern plate, the vehicle height can be automatically adjusted while the two-wheeled vehicle or four-wheeled vehicle is running. If it is necessary to change the vehicle height depending on whether the two-wheeled vehicle is a one-seater or a two-seater, the height of the vehicle must be changed depending on whether the motorcycle is a one-seater or a two-seater. Should I set up a group?
Alternatively, a desired vehicle height can be obtained by moving the position of the detector. Furthermore, in consideration of the case where the passenger leaves the vehicle with the engine running, the electric circuit can be cut off when the side stand is used. Furthermore, patterns 7 and 8
Of course, it is also possible to form the pattern with a light reflecting surface, and to form the pattern with a magnetic material when magnetic flux detection elements are used as the detectors 3 and 4.

[Brief explanation of the drawing]

FIG. 1 is a front view of a vehicle height fluctuation detector according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line A-A in FIG. 1, and FIG. 3 is a diagram showing the configuration of an electric circuit according to an embodiment of the present invention. 4 and 5 are waveform diagrams showing an example of the operation of the apparatus shown in FIG. 3. In the figure, 2 is a pattern board, 3, 4
1 is a detector, 7 and 8 are patterns, 12 is a smoothing circuit, 13 is a shaping circuit, 14 is a differentiation circuit, 15 is an AND gate, 16 is a NOR gate, and 17 and 18 are integrators.

Claims (1)

[Scope of utility model registration request] Guide grooves are provided on the inner surfaces of both sides of the rectangular frame, and a pattern plate is slidably fitted thereinto, and a polar pattern detector, an allowable displacement width pattern detector, and each of the detectors are provided on the bridging sides of the rectangular frame. A polarity discrimination pattern and an allowable displacement radiation pattern of a transparent groove extending in the sliding direction of the pattern plate with one end at a position facing the polarity discrimination pattern detector on the pattern plate and a position facing the permissible displacement radiation pattern detector are attached. A permissible displacement width pattern of the permissible groove extending in the sliding direction is formed around , and when the output signal of the permissible displacement width pattern detector disappears for a predetermined time, the presence or absence of the output signal of the polarity discrimination pattern detector is determined. A vehicle height adjustment device characterized by being provided with an electric circuit that sends out a vehicle height increase or vehicle height decrease signal depending on the vehicle height.