JPH072377Y2 - Motorcycle stand device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a stand device for a motorcycle.

(Prior Art) In a motorcycle, a stand device has been recently proposed and put to practical use in which a stand is erected only by operating a switch.

In such a stand device, a shaft member supporting the main stand and a power source such as a motor are connected by a gear train, and the power of the power source is transmitted to the shaft member via the gear train to raise the main stand. I am trying.

By the way, in such a stand device, there is one in which the operation of tilting the stand from an upright state can be performed manually without using the power source. That is, in the standing state of the stand, a part of the gears of the gear train is slid in the supporting axis direction to release the engagement between this gear and the other gears so that the shaft member supporting the main stand can be rotated. is there. In this way, the stand can be manually tilted when the stand is raised.

(Problems to be Solved by the Invention) However, in the above-described stand device, the teeth of the gears are engaged with each other with a constant surface pressure when the stand is erected, so that the aforementioned gears may not slide smoothly. There was

The present invention has been made in view of these problems,
An object of the invention is to provide a stand device for a motorcycle, which facilitates sliding of a gear in a supporting axis direction.

(Means for Solving the Problem) In order to solve the present invention, the present invention connects a shaft member supporting a main stand and a power source such as a motor with a plurality of gear trains, and the power of the power source is connected to the gear train. In a stand device of a motorcycle configured to raise the main stand by transmitting it to the shaft member, a limit switch that comes into contact with the main stand immediately before the standing position of the main stand and stops the power source is provided, At least one gear of the gear train is provided with a moving means for slidably moving the gear in the support shaft direction to release the connection of the gear train, and a gap for facilitating sliding of the gear in the support shaft direction. Is provided between the teeth of this gear and the adjacent gear.

(Operation) Immediately before the standing position of the main stand, the main stand comes into contact with the limit switch to operate the limit switch, and the power source stops. At this point, the teeth of each gear mesh with each other, but after the power source has stopped, the main stand swings to the standing position due to inertia and the weight of the vehicle body, and the teeth of the gear move in the direction to release the engagement. . Since the teeth of the gear have a sufficient gap, the teeth do not mesh with each other even when the main stand is in an upright state, so that a constant surface pressure is not applied between the teeth of the gear. Therefore, sliding of the gear in the support axis direction can be easily performed without resistance.

(Embodiment) A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows a side view of a motorcycle, in which 1 is a handle post, 2 is a handle, 3 is a front fork, and 4 is a front wheel supported by the front fork 3.

A power unit 5 including an engine and a mission is arranged in the lower center of the vehicle body, and the rear wheels 6 are driven by the power of the power unit 5.

A stand device 8 is provided on the front portion of the lower surface of the power unit 5, and FIG. 2 shows a side view of the stand device 8.

A motor M is attached to the case 9 of the stand device 8, and a worm 10 is formed on a drive shaft M1 of the motor M. This motor M is a switch (not shown) provided on the handle 2.
It works with.

A worm wheel 12 and a gear 13 are fixed to a shaft 11 rotatably attached to the case 9, and the worm wheel 12 is meshed with the worm 10. A large-diameter gear 16 and a small-diameter gear 18 are fixed to a rotary shaft 14 rotatably attached to the case 9, and the gear 16 is meshed with the gear 13. Further, as shown in FIG. 3, the inner periphery of the gear 22 is connected to the outer periphery of the shaft member 20 rotatably attached to the case 9 through a spline 23, and the outer periphery of the gear 22 is meshed with the gear 18. The upper end of the main stand 24 is fixed to the shaft member 20.
A solenoid is provided next to the gear 22 (in the direction of the back side of the gear 22 in FIG. 2), and the solenoid extends and retracts in the direction perpendicular to the paper surface of FIG. Is slidable in the axial direction of the shaft member 20 so that it can be engaged with and disengaged from the gear 18. Also, the main stand
24 is urged in the counterclockwise direction in FIG. 1 when it stands up by a return spring Sp. In the figure, St is a stopper of the main stand 24.

As shown in FIG. 3, the teeth 20a of the shaft member 20 and the teeth 2 on the inner circumference of the gear 22
A sufficient gap t is formed with 2a.

The main stand 24 is swingable between positions A and C in FIG. 2, with the position A being the standing position and the position C being the storage position. Also, the standing position A of this main stand 24
A limit switch (not shown) is provided immediately before, and when the main stand 24 swings to the B position, it abuts this limit switch and the motor M stops.

Worm 10, Worm Wheel 12, Gears 16, 18, 2 above
2. The spline 23 constitutes the gear train 25, and the motor M, the gear train 25, the main stand 24, etc. constitute the stand device 8.

In the above, when the switch of the handle is turned on, the motor M operates and the drive shaft M1 rotates. This drive shaft M1
The rotation of the shaft 11 via worm 10 and worm wheel 12
And the shaft 11 rotates. The rotation of the shaft 11 is transmitted to the shaft 14 via the gears 13 and 16, and the shaft 14 rotates. Further, the rotation of the shaft 14 is transmitted to the gear 22 via the gear 18, and the gear 22 rotates in the direction of arrow a. This rotation is a spline
It is transmitted to the shaft member 20 via 23, the shaft member 20 rotates, and the main stand 24 starts swinging in the b direction from the C position. At this point, the teeth 22a on the inner circumference of the gear 22 are in contact with the teeth 20a of the shaft member 20 as shown in FIG.

The main stand 24 swings as it is and passes the upright position D, but immediately before the upright position A, that is, when it reaches the B position, it abuts the limit switch and the motor M stops. As a result, power is not transmitted to the main stand 24, but since the main stand 24 has passed the upright position D, it swings further forward due to the vehicle weight (and also due to the inertia of the main stand 24 itself) and hits the stopper St. It touches and stops at the standing position A. Here, while the main stand 24 swings from the B position to the A position, the gear 22 stops and the shaft member
Since the 20 rotates, the teeth 20a of the shaft member 20 move in the a direction relative to the gear 22. And each tooth 20a and 2
There is a sufficient gap between 2a and main stand 24
As shown in Fig. 4, when the teeth are in the upright position A,
20a and 22a do not engage with each other and keep a gap therebetween. As described above, if there is a gap between the teeth 20a and the teeth 22a and they are not engaged, the gear 22 becomes free and the teeth 22 are not subjected to surface pressure. When the solenoid operates in this state, the gear 22 slides in the vertical direction in the drawing along the shaft member 20 in a free state without receiving surface pressure, and thus the gear 22 slides along the shaft member 20. Is easier to do.

The engagement of the gear train 25 is released by the sliding of the gear 22, and the main stand 24 can be manually rocked. By pushing the vehicle body forward, the main stand 24 rocks in the C direction to the C position. Moving.

(Effects of the Invention) As described above, according to the present invention, the teeth of the gears do not engage with each other even when the main stand is upright, so that the gears can easily slide in the support axis direction.

[Brief description of drawings]

FIG. 1 is a side view of a motorcycle, FIG. 2 is a side view of a stand device, and FIGS. 3 and 4 are views showing engagement states of a gear and a shaft member. In the drawing, 24 is a main stand, 25 is a gear train, M is a power source, and t is a clearance.

Claims (1)

[Scope of utility model registration request] 1. A shaft member supporting a main stand and a power source such as a motor are connected by a plurality of gear trains, and the power of the power source is transmitted to the shaft member via the gear train to raise the main stand. In the motorcycle stand device as described above, a limit switch that comes into contact with the main stand immediately before the standing position of the main stand and stops the power source is provided, and at least one gear of the gear train is provided with the gear. A moving means for slidably moving in the supporting shaft direction to disconnect the gear train is provided, and a gap for facilitating sliding of the gear in the supporting shaft direction is provided between this gear and the teeth of the adjacent gear. A motorcycle stand device that is characterized by