JPS58224873A - Regulator for height 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 vehicle height adjustment device for a motorcycle, in which pressure is applied so that the vehicle height adjustment device does not operate when the center stand or side stand is upright, thereby preventing erroneous adjustment. It is something.

Vehicle height adjustment devices for motorcycles use a rear cushion unit that uses an air spring and is filled with fluid (generally air).The vehicle height is adjusted by supplying and removing fluid from the rear cushion unit. There are the following things to change. This device uses an auto-leveling switch and a leveling sensor, and when the auto-leveling switch is turned on when the vehicle height is high, the fluid (hereinafter referred to as air) in the rear cushion unit is discharged into the atmosphere and the rear cushion The overall length of the unit has been shortened, thereby lowering the vehicle height.

The lowering of the vehicle height is detected using a leveling sensor.
When the vehicle height drops to a predetermined value, air discharge will stop. By the way, in the case of a motorcycle, it is necessary to use a center stand in order to stop the motorcycle safely. When the center stand is raised, the rear wheels generally move away from the ground, so the rear cushion unit is extended to its maximum length. Therefore, the leveling sensor determines that the vehicle height is too high.
This means that a command to stop air discharge will not be issued. Therefore, if you turn on the auto leveling switch in this state,
Air is permanently discharged, which may lead to damage to equipment in the air discharge system, and may also result in incorrect vehicle height adjustment. On the other hand, if a side stand is used, the side stand carries part of the load (spring load), so correct adjustment will not be possible.

The present invention has been made to solve these problems. For this reason, the present invention provides a stand switch that detects whether the center stand or side stand of the vehicle body is in the upright state, and this stand switch causes fluid (generally air) to flow to the rear cushion unit when the center stand or side stand is up. The structure is such that no data is sent in or removed.

Hereinafter, one embodiment of the present invention will be described with reference to FIG. 1. Reference numeral 1 denotes a rear cushion unit that supports a rear wheel (not shown) of a motorcycle, and two cushion units are arranged in parallel to support the rear wheel from both sides. It is provided. This rear cushion unit 1 has an inner tube 3 inserted into an outer tube 2, and is provided with a hydraulic cylinder mechanism 4 and a spring 5 inside. It was made so that it could be changed. The overall length of the rear cushion unit 1 is constantly detected by a leveling sensor 7 provided close to the rear cushion unit 1.

A vibrator 9 for supplying and expelling air to and from the rear cushion unit 1 is connected to the discharge side of a pump IO of the compressor unit 9 via a solenoid control valve 8. 11 is a motor for driving the pump 10; 12 is a dryer that heats and dehumidifies intake air; 13;
14 is a pump/shisha gauge, and 14 is an accumulator with a safety valve.

Two solenoid control valves 8u, +) are used to switch whether the cushion unit 1 is connected to the pump 10 or to the atmosphere opening port 15. The portion described above, that is, the portion indicated by the bold line in the figure, is an air circulation circuit.

Next, the control circuits shown by thin lines will be explained. 16 is an auto-leveling switch, and 17 is a stand switch. These auto-leveling switch 16 and stand switch 17 are connected in series to a control circuit of a control unit 18. The input side of the control unit 18 is connected to the leveling sensor 7, and the output side is connected to the solenoid control pulp 8. 19 is a battery as a power source, and 2° is a pressure switch.

The stand switch 17 is connected to the center stand 21 (second
(see figure) is turned off when the motorcycle stands up (when the motorcycle is brought to a definite stop).

FIG. 2 shows an example of this, in which a shaft 23 is attached to a vehicle body frame 22.
A stand switch 1 is installed between the intermediate pipe 24 of the center stand 21 which is pivotally attached to the center stand 21 and a part of the vehicle body frame 22.
7 is arranged and rotatably supported by a shaft 25, and an actuator 26 is pulled by a spring 27. 28 is a return snoring that pulls the center stand 21 in the storage direction. The stand switch 17 thus obtained is used so as to be turned off when the center stand 21 is raised and extended in an L-shape.

What is shown in FIG. 3 is another mounting structure for the stand switch 17. In this case, a stopper plate 29 is provided on the center stand 21, and this stopper plate 29
When the center stand 21 is placed in the upright position, the actuator 26 of the stand switch 17 attached to the side of the vehicle body flange 22 is pressed to turn it off.

In all of these, the stand switch 17 is turned off when the center stand 21 is placed in the upright position.
Even if the auto-leveling switch 16 is turned on at this time, the control unit 18 will not operate, and therefore the vehicle height will not be adjusted. center stand 2
If 1 is set to 1 position (at this time, the rear wheels are in contact with the ground),
Vehicle height adjustments will be made.

In the embodiment described above, the stand switch 17
was connected in series with the auto leveling switch 16, but
The present invention is not limited to this. FIG. 4 shows another embodiment of the present invention, in which the stand switch 17 is separated from the auto-leveling switch 16, and the control unit 1B and solenoid control bar on the air removal side are connected.
``7'' and 8 (7) are connected. In this way, the same operation and effect as described above can be obtained.

What is shown in FIG. 5 is still another embodiment of the present invention,
The stand switch 17 is activated by relating it to the state of the side stand 30. in this case,
A bin 31 provided in the middle part of the side stand 30;
A return spring 28 is hung between the upper end of the side stand 30 and a pin 34 provided on a placket 33 which is pivotally connected to the upper end of the side stand 30 by a shaft 32. And this return spring 2
8 and the actuator 26 of the stand switch 17
and are connected by a spring 35. In this embodiment, as shown in FIG. 6, the stand switch 17 is switched by the displacement X of the upper end position of the return spring 28 due to the difference in the position of the side stand 30.

Since the present invention is configured as described above, it has the following effects.

■ Since the vehicle height is not adjusted when the center stand or side stand is in the upright position, there will be no damage to equipment such as solenoid control valves.

■ Since the vehicle height can be adjusted only when the vehicle is in the open position, the internal pressure of the rear cushion unit can be adjusted correctly, eliminating erroneous adjustments.

[Brief explanation of the drawing]

FIG. 1 is a system diagram of an embodiment of the present invention, FIG. 2 is a perspective view of an example of mounting a stand switch, FIG. FIG. 5 is a side view of still another embodiment of the present invention, and FIG. 6 is an explanatory diagram for explaining the operation of the device shown in FIG. 1... Rear cushion unit 7... Leveling sensor 8... Solenoid control pulp 9... Compressor unit 15... Atmospheric release port 16... Auto leveling switch 17... Stand switch 18... Control unit 21...Center stand 22...-Vehicle frame 26...Actuator 30...Side stand fang 1 Figure 2 2 Figure 22 23 Figure 24 g! ! ! 3 2 years old 5 figure

Claims (1)

[Claims] (1) Using a cushion unit to seal in fluid,
In a motorcycle whose vehicle height is changed by supplying and discharging fluid to and from the rear cushion unit, a stand switch is provided for detecting that the center stand or side stand of the vehicle body is in an upright state, and the stand switch is provided. A vehicle height adjustment device for a motorcycle, characterized in that when the center stand or the side stand is raised, fluid is not supplied to or removed from the rear cushion unit.