JPH022707Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a main stand that supports the body of a motorcycle when it is parked.

[Conventional technology]

Normally, the main stand is mounted at the bottom of the vehicle near the center of gravity so that the top of the stand can rotate in the longitudinal direction of the vehicle, and the rider operates the stand with his or her feet so that the contact surface at the bottom of the leg lands on the ground. ,
Using this landing point as a fulcrum, a stand is raised to slightly lift the car body backwards, and most of the weight of the car body is supported by this stand, fixing the car body upright. In this case, if the ground contact surface is horizontal, the vehicle body can be supported upright, but if the contact surface is sloped, the vehicle body will be supported in an unstable state.

For this reason, as shown in Japanese Patent Application Laid-Open No. 48-53447, a lifting leg is inserted into each of the two legs that are formed at the bottom in a figure-eight shape and expanded in the width direction of the vehicle body, so that the slope of the ground contact surface can be adjusted. Adjust the length of the left and right lifting legs accordingly, and
There is a stand that supports a vehicle body upright by fixing the lifting legs by engaging locking pieces provided in a horizontal tube that connects book legs with sawtooth locking parts formed on the lifting legs.

[Problem that the invention attempts to solve]

However, such a stand has the problem that it takes time and effort to individually adjust the length of the elevating legs and to fix the elevating legs.

Therefore, an object of the present invention is to provide a stand that can easily support a vehicle body upright even on sloped or uneven ground, and that does not require effort when raising the stand.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention provides a swingable ground plane body extending in the width direction of the car body at the lower end of the lifting leg provided at the bottom of the car body, and a sliding piece is attached to the lifting leg in the width direction of the car body. The slide piece is arranged to be movable at a position above a predetermined standing position by a displacement member interlocking with the elevating leg, and expands in the width direction of the vehicle body,
It is characterized in that it engages with the ground plane body to restrict its swinging.

〔Example〕

An embodiment of the present invention will be described based on FIGS. 1 to 7.

As shown in Fig. 1, the main stand according to the present invention attaches upper parts 3a, 3a of a pair of left and right upper arms 3, 3 to a stand mounting member 2 fixed to a bracket 1 at the bottom of the vehicle body using pins 4, 4, respectively. This atsupa arm 3, 3 is provided so as to be rotatable in the width direction.
A pair of left and right lower arms 7, 7 are rotatably connected to each other via end pins 5, 6.
The lower portions 7a, 7a of the pantograph-shaped elevating legs 10 are rotatably attached to a fixed arm 8 extending in the width direction of the vehicle body using pins 9, 9, respectively.

Then, the screw shaft 12 connected to the drive shaft of the electric motor 11, which can be rotated forward and backward, is inserted into the insertion hole 5a of the end pin 5, and the threaded portion at the tip of the screw shaft 12 is screwed into the screw hole 6a of the end pin 6.
1 is attached to a fixed plate 13 provided on the end pin 5, and by driving the electric motor 11 and rotating the screw shaft 12, the space between the end pins 5 and 6 is expanded and contracted, and the elevating leg 10 is expanded and contracted.

Further, gear parts 3b, 3b are provided on the upper parts 3a, 3a of the upper arms 3, 3, respectively, and the lower arms 7, 3b are provided with gear parts 3b, 3b, respectively.
Gear parts 7b, 7b are similarly attached to lower parts 7a, 7a of 7.
are formed and mesh with each other so that the elevating legs 10 can extend and contract symmetrically.

A ground plane body 14 is swingably attached to the fixed plate 8 by a pivot bolt 15, and this ground plane body 14 has lock gear parts 14a, 14a.
has been erected.

The pair of left and right slide pieces 16, 16 attached to the fixed plate 8 are provided with long holes 16a, 16b, respectively, and the pins 9, 9, 17, 17 of the fixed plate 8 are inserted into the long holes 16a, 16b to allow the slide pieces to slide. A piece 16 is attached to the fixed arm 8 so as to be movable in the width direction of the vehicle body.

Further, a protrusion 16c is provided at the lower part near the center of the slide piece 16, and a gear portion 16d is formed at the tip.

Furthermore, the lower ends of the lower arms 7, 7 are provided with lifting legs 1.
0 is extended to a predetermined straightened position or higher, protrusions 7c are formed that abut against protrusions 16c of the slide piece 16 and move the slide piece 16.

To explain the function of the main stand configured in this way, when driving, the screw shaft 12 is rotated to widen the gap between the end pins 5 and 6 and raise the ground surface body 14 as shown in FIG. 1, and when parking the vehicle, as shown in FIG. As shown in FIG. 2, the screw shaft 12 is reversely rotated by the electric motor 11 to shorten the distance between the end pins 5 and 6, and extend the elevating leg 10, so that the ground plane body 14 moves downward and lands on the ground. At this time, as shown in the figure, even if one of the ground planes 14 lands on a protrusion such as a stone, since the ground plane 14 is swingably attached, the other side will tilt toward the ground due to the extension of the elevating legs 10. landed,
The movement of the ground plane body 14 stops.

As the screw shaft 12 is further rotated, the elevating legs 10 continue to extend while lifting the vehicle body, and when they reach a predetermined straightened position or higher, the protrusions 7c, 7c provided on the lower arms 7, 7 move against the protrusions 16c of the slide pieces 16, 16. , 16c, respectively, and the slide piece 1
6, 16 is pushed, the slide pieces 16, 16 move in the width direction, and the lock gear part 14a of the ground plane body 14 lands with the gear parts 16d, 16d at the tip inclined at the extended position of the elevating leg 10. , 14a, respectively, to fix the ground surface body 14.

As a result, the lifting legs 10 are fixed upright even when the ground contact surface body 14 is on the ground in an inclined state, so that the vehicle body can be supported upright.

A limit switch (not shown) in the electric motor 11 stops the operation at a predetermined extended position or retracted position of the elevating leg 10.

Furthermore, since this main stand uses pantograph-type lifting legs, it does not require much force to lift the car body, so a small electric motor can function satisfactorily, and the overall components can be made compact.

8 and 9 show another embodiment of the present invention, in which an air cylinder 21 is provided on a bracket 20 at the bottom of the vehicle body, and a fixed arm extending in the width direction of the vehicle body is provided at the bottom of the piston rod 22 of the cylinder 21. 2
3, a spring 24 is compressed in the piston rod 22, an inner rod 25 is attached to form a lifting leg 26, and a ground plane body 27 extending in the width direction of the vehicle body is swingably attached to the lower end of the inner rod 25. There is.

Slide pieces 28, 28 similar to those in the previous embodiment are slidably attached to the fixed arm 23 by pins 29, 29, 30, 30, respectively.
A cam 31 is rotatably supported on each pin 29 .

A gear portion 31a is formed at one end of the cam 31 and meshes with a gear portion 25a at the lower part of the inner rod 25, and a protrusion 31b is formed at the other end of the cam 30.

To explain the operation of the main stand configured in this way, when the air pump 32 is operated to supply air into the air cylinder 21, the cylinder rod 2
2 descends and the ground plane body 27 lands, and the ground plane body 2
7 stops moving, but the cylinder rod 22 continues to move downward and the spring 24 begins to contract.The gear part 25a of the inner rod 25 rotates the cam 31 that is engaged with the gear part 31a, and the protrusion 31b of the cam 31 engages the slide piece 28. The slide piece 28 is pushed by coming into contact with the protrusion 28a, and the slide piece 28 moves and the gear portion 28b at the tip engages the lock gear portion 27 of the ground plane body 27.
a to fix the ground-contact body 27 and support the elevating legs 26 upright, and when air is further supplied to the air cylinder 21, the air cylinder 21 rises to lift and support the vehicle body.

Note that this configuration is not limited to vertically movable elevating legs, but may also be applied to legs rotatably provided on the vehicle body.

[Effect of idea]

As described above, the present invention is provided with a ground-contact body extending in the width direction of the vehicle body so as to be swingable at the lower end of the elevating leg provided at the bottom of the vehicle body, and a slide piece movable in the width direction of the vehicle body. The slide piece is expanded in the width direction of the vehicle body above a predetermined standing position by a displacement member that is linked to the movement of the lifting leg, and engages with the ground contact surface body to restrict its swinging, so that the ground contact surface body is tilted. Even if the vehicle lands on the ground, the vehicle body can be easily supported upright, and even if the vehicle is heavy, there is no need to lift the vehicle body, and the vehicle body can be supported with a compact device.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional front view showing an embodiment of the present invention, Fig. 2 is a plan view, Fig. 3 is a - sectional view of Fig. 1, Fig. 4 is a - sectional view, and Fig. 5 is -. 6 is a sectional view, FIG. 7 is a front view showing the operation of the main stand according to the present invention on an inclined surface, and FIG. 8 is a sectional front view showing another embodiment of the present invention. FIG. 9 is a cross-sectional view of FIG. 8. 1... Lower body flange, 3... Atsupa arm, 5, 6... End pin, 7... Lower arm,
7c...Protrusion, 8...Fixed arm, 9...Pin,
DESCRIPTION OF SYMBOLS 10... Lifting leg, 11... Electric motor, 12... Screw shaft, 14... Ground surface body, 16... Slide piece, 16c... Protrusion.

Claims (1)

[Scope of utility model registration request] In a main stand for a motorcycle comprising a lifting leg and a ground-contact body at the lower end of the lifting leg, the ground-contacting body extending in the width direction of the vehicle body is swingably provided at the lower end of the lifting leg, and the ground-contacting body is swingably provided at the lower end of the lifting leg and slides with respect to the lifting leg. The slide piece is arranged to be movable in the width direction of the vehicle body, and the slide piece is expanded in the width direction of the vehicle body above a predetermined standing position by a displacement member that is linked to the elevating leg, and engages with the ground contact surface body. A main stand for motorcycles that is characterized by regulating rocking.