JPH06199255A - Stand device of snow mobile with crawler - Google Patents

Abstract

PURPOSE:To provide a stand device which is free from obstruction occurring during running by arranging so that it enables parking in snow stably and holding in the condition with the stand lifted. CONSTITUTION:A stand device for snow mobile is to support the snow mobile with crawler so that it does not tumble when stopped. The device has a stand 40 which comes in touch with the snow surface when it is raised upright and is furnished with a snow contacting surface of a structure not sunk into the snow even when the mobile weight is applied, wherein a supporting side is installed on a crawler frame 24. The arrangement further includes a hinge mechanism 42 where the rotating side is installed on the stand 40 side and a latch mechanism which can fix the stand 40 in two states, i.e., the stand 40 is raised upright and is lifted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stand device for supporting a snow vehicle with a crawler so as not to fall when the vehicle is stopped.

[0002]

2. Description of the Related Art Conventional snowmobiles with crawlers include so-called snowmobiles having a steering sled in the front part and a driving crawler in the rear part. In this type of snowmobile, the crawler has a wide width and the vehicle body does not lean. Therefore, the snowmobile can stand on its own without a stand.

[0003]

Here, the applicant previously proposed in Japanese Patent Application No. 3-152329 (not known) a small snow vehicle which has a relatively narrow crawler width and is lean. When a small snow vehicle of this type is stopped on snow, it is necessary to support the small snow vehicle with a stand. In this case, it is conceivable to use a side stand as used in conventional motorcycles. However, with such a side stand, the snow contact surface area can be increased only to some extent, and if used, the snow contact surface side will be stuck in the snow, and the function as a stand cannot be fully achieved. There was a point.

The present invention has been made in view of the above-mentioned conventional problems, and provides a stand device for a snow vehicle with a crawler capable of ensuring a sufficient snow contact area during parking on snow and reliably supporting the snow vehicle. Doing is the first task. A second object is to provide a stand device for a snow vehicle with a crawler that can raise the stand without disturbing it.

[0005]

In order to solve the above-mentioned problems, the present invention has the following constitution. That is, a stand device that supports a snow-covered vehicle with a crawler so that it does not fall when it is stopped, and that is in contact with the snow surface when the stand is upright and that does not sink into the snow even when the vehicle weight is applied. A stand with a snow contact surface, a hinge mechanism with the support side attached to the crawler frame and a rotation side attached to the stand side, and the stand can be fixed in both the standing state and the raised state. The first problem is solved by the provision of such a latch mechanism. Further, in the present invention, the second problem can be solved by constructing the stand from the rear part to the upper part of the crawler or covering the lateral side of the crawler frame.

[0006]

Since the present invention has the above-mentioned structure, the stand does not sink into the snow when the stand is placed upright and the snow-contacting surface of the stand is in contact with the snow. Since it can be held upright, when parking a snow vehicle with a crawler, it can be parked stably in the snow. Further, since the stand can be held in the raised state by the latch mechanism, no trouble occurs during traveling.

If the stand is constructed so as to cover from the rear part to the upper part of the crawler when the stand is raised, the stand can also serve as the rear fender of the crawler. Therefore, a large stand can be stored without disturbing traveling. Further, if the stand is configured so as to cover the side of the crawler frame when the stand is lifted, the stand also serves as the side cover of the crawler. Therefore, a large stand can be stored without disturbing traveling. It also prevents snow from entering from the crawler side.

[0008]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 shows the entire construction of a snow vehicle with a crawler provided with a stand device according to a first embodiment of the present invention. As shown in FIG. 1, this first embodiment
When the stand is stood, the stand 40, which is in contact with the snow surface behind the vehicle body and does not sink into the snow even when the vehicle weight is applied, is used as a rear fender and the crawler frame 24 via the bracket 43. A hinge mechanism 42 to which the supporting side 42a is attached and a rotating side 42b is attached to the stand 40 side, and a latch mechanism 44 capable of fixing the stand 40 in the state in which the stand 40 is raised and the state in which the stand 40 is raised are provided. It is a stand device. When the stand 40 is raised, this stand device is similar to a rear fender of a normal snowmobile, and the crawler 2
When the stand 40 is in a standing state (the stand is lowered on the snow surface), the vehicle body is supported behind the crawler 20 via the crawler frame 24 while covering the upper part from the rear part of 0. Details of each part of the stand device will be described later.

The structure of the snowmobile will be described. In the configuration of FIG. 1, a seat 2 is provided on the upper portion of the vehicle body 1, and a bar handle 4 is connected to the upper end of the front hawk 3. The front fork 3 is a bottom link type, and the cushion unit 5 is expanded and contracted to swing the link 6 to form a cushion for the front wheel 7. The front wheels 7 are fitted with snow tires.

The engine 8 drives a front chain 11 via a continuously variable transmission 9 and a gear reducer 10 to drive a constant velocity universal joint 12. And, furthermore, a constant velocity universal joint 12
From primary chain 13, idler 14, secondary chain 15
The front wheels 7 are driven via. On the other hand, the engine 8 drives the transmission chain 18, the first drive sprocket 31, and the drive chain 32 via the continuously variable belt transmission 16 and the gear reducer 17, and the crawler drive sprocket 1
Drive 9 Since the crawler 20 is meshed with the sprocket 19, the crawler 20 is driven by the engine 8.

The engine 8 is surrounded and supported by a lower frame 33, and an arm frame 35 for rotatably supporting the drive sprocket 31 is provided behind the lower frame 33 and below the rear frame 34. It is fixedly provided on the frames 33 and 34. The width of the arm frame 35 is smaller than that of the lower frame 33. Further, the step p2 is provided slightly below the lower rear portion of the lower frame 33, where the arm frame 35 is attached. This arm frame 3
5, a pivot shaft 30 on the front end side of a swing arm 36 is provided coaxially with the rear end of the drive sprocket 31, that is, the drive sprocket 31, and the swing arm 36 has the rear end pivotally supporting the drive sprocket 19. Swing arm 36
Oscillates vertically with the pivot shaft 30 as a fulcrum according to the vertical movement of the crawler 20.

The crawler 20 is a crawler belt provided corresponding to the rear wheel portion, and is wound between the free sprocket 22 and the drive sprocket 19 to be engaged with each other. Crawler 20
Is a free sprocket 22, a drive sprocket 19, and an idler 2 mounted on a crawler frame 24.
7a to 27d, and extends long in the front-rear direction of the vehicle body 1 to near the rear side of the front hawk 3.

Suspensions 25 and 26 are provided between the crawler frame 24 and the vehicle body 1 to absorb impact. That is, in the crawler frame 24,
The under eye side of one end of the suspension 25 is connected, and the upper eye side of the other end of the suspension 25 is attached to the lower end of the lower frame 33. Further, the under eye side of the other end of the suspension 26 is attached to the upper side of the swing arm 36 via a mounting member 36a, and the upper eye side of the other end of the suspension 26 is attached to a slightly lower rear portion of the rear frame 34. Has been. Therefore, the impact load applied to the crawler 20 is applied to the crawler frame 24, and is transmitted to the vehicle body 1 side through the suspension 25 at the front part of the crawler frame 24. At the rear of 24, it is transmitted to the vehicle body 1 side via the swing arm 36 and the suspension 26. In this way, the suspension 2
By the expansion and contraction of 5, 26, the above-mentioned impact load is alleviated.

The crawler 20 is rotationally driven by a drive sprocket 19 arranged at the rear end of the crawler 20 and a free sprocket 22 arranged at the front end of the crawler 20. The idlers 27a to 27d are of a so-called central guiding type, for example, guiding a protrusion provided on the inner peripheral side of the crawler 20.

Of the idlers 27a to 27d, the idler 2
Reference numerals 7c and 27d denote rollers that are flat and hard, for example, rollers that come into contact with the ground via the crawler 20 when traveling on a paved road.
This is the roller that receives the impact load first. Further, among the idlers 27a to 27d, the idlers 27a and 27b are rollers that are not grounded via the crawler 20 when traveling on the paved road. Therefore, since the idlers 27c and 27d are the lowest, the crawler 20 is inflated in a state of being inflated downward and curved so that the central rear side is the lowest.

The crawler 20 is formed by horizontally burying a core metal (not shown) at predetermined intervals, and is made of, for example, rubber. On the inner peripheral side of the crawler 20, a row of engaging holes for engaging the teeth formed on the free sprocket 22 and the drive sprocket 19 to rotate the crawler 20 is provided at the center in the width direction.

Here, the mounting state of the stand device is as shown in FIG. 1, but the state of the snow-covered vehicle with the crawler viewed from the rear side is as shown in FIG. The details of the hinge mechanism 42 and the latch mechanism 44 provided in the vicinity thereof are as shown in FIG. As shown in FIG. 1 to FIG. 3, the brackets 43 are roughly central members or thick plates that extend from the rear end of the crawler frame 24 toward the rear of the vehicle or slightly obliquely downward, and a pair of brackets 43 are provided in the vehicle width direction. Specifically, the bracket 43 is
A front end of the crawler frame 24 is attached to the rear end of the crawler frame 24 by welding (or bolting), and the rear end extends rearward from the rear end of the crawler 20. A hinge mechanism 42 is provided at the rear end of the bracket 43.

The hinge mechanism 42 comprises a support side 42a and a rotation side 42b. The support side 42a is a hole formed at the rear end of the bracket 43 and a shaft member 42a1 fitted or loosely fitted in the hole, and the rotating side 42b is a stand arm into which the shaft member 42a1 is fitted. It is a hole formed at the end of the vehicle body side of 40c. Therefore, the hinge mechanism 42 allows the stand 40 to rotate about the rear end portion of the bracket 43 by about 180 ° substantially along a plane including the front-back and up-down directions of the vehicle body. The stand arm 40c is axially provided so as to be positioned outside the bracket 43 in the vehicle width direction.

As shown in FIG. 1, the stand 40 has a substantially flat plate-shaped main portion 40a and its main portion 4 which are spread in the vehicle body width direction and the front-rear direction in the state of being in contact with snow (the state of standing the stand).
The bending portion 40b that rises obliquely upward from 0a toward the vehicle body is integrally formed. A stand arm 40c facing the hinge mechanism 42 is attached to the end of the bent portion 40b on the vehicle body side by welding or the like. The area of the main part 40a of the stand 40 on the snow contact side is
It has an area sufficient to prevent the vehicle body from leaning due to the vehicle weight.

The latch mechanism 44 comprises a lock lever 44a and a notch 44b, as shown in detail in FIG. FIG. 3A is a side view, and FIG. 3B is II in FIG.
It is a sectional view taken along the line II. As shown in FIG. 3, the lock lever 44 a has a hole 43 a formed in the bracket 43.
The shaft 43b is inserted into the bracket 43 and fixed to the bracket 43 at a substantially right angle to the longitudinal direction of the bracket 43 so as to be swingable. Further, one end of the lock lever 44a projects to the outside of the bracket 43 in the width direction of the vehicle body, and the other end projects to the inside of the bracket 43 in the width direction. One end of a spring 44c is hooked and fastened to the inwardly projecting portion, and the other end of the spring 44c is hooked and fastened to the bracket 43 toward the front of the vehicle body.
The end portion of the lock lever 44a protruding outward in the vehicle width direction is biased rearward, that is, in the support side shaft 42a1 direction.

The notch 44b is provided on the stand arm 4
0c has two notches formed at the end of the hinge mechanism 42 on the side of the hinge mechanism 42 in the front-rear direction of the vehicle body with the support shaft 42a1 of the mechanism 42 sandwiched therebetween. The notch 44b is formed in such a size that the end portion of the lock lever 44a on the side of the stand arm 40c can be fitted therein and cannot be easily removed even when a rotational force acts on the stand arm 40c when fitted. Note that the position and shape of the notch are not limited to this, and the notch can be provided at other positions as long as the stand 40 can be fixed at both the standing position and the lowered position. Further, the latch mechanism 44 may be provided on only one bracket 43 as shown in FIG. 2, provided on the opposite bracket, or provided on both sides.

As described above, since the stand device of the first embodiment is constructed as described above, when the stand 40 is erected, the snow-contacting surface of the stand 40 is completely in contact with the snow surface, and the stand is in contact. Crawler 20 when raised
Along and cover from the back to the top. At the same time, in each of these states, the stand mechanism 40 is operated by the latch mechanism 44.
Can hold. Therefore, when the vehicle is stopped, the vehicle body is supported with the stand securely upright, and when the vehicle is running, the vehicle body 40 is kept securely stored and the lower part of the vehicle body and occupants are covered with snow as a fender. Can be prevented.

Next, a second embodiment will be described. FIG. 4 shows the whole structure of a snow vehicle with a crawler provided with a stand device according to a second embodiment of the present invention. As shown in FIG. 4, in the second embodiment, when the stand is erected (when the stand is lowered on the snow surface), the vehicle body is laterally in contact with the snow surface and sinks in the snow even if the vehicle weight is applied. A stand 50 also serving as a side cover that does not fit, and a crawler frame 24
A hinge mechanism 52 in which a support side 52a is attached to a stand 50 side via a bracket 53, and a rotation side 52b is attached to a stand 50 side, and a latch capable of fixing the stand 50 in a state in which the stand is upright and a state in which the stand is raised. And a mechanism 54 (shown in FIGS. 5 and 6). In this stand device, the stand 50 covers the side surface of the crawler 20 when the stand is raised, and supports the vehicle body by the side of the crawler 20 via the crawler frame 24 when the stand is upright. The same parts as those of the snowmobile of the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

Here, the attached state of the stand device is as shown in FIG. 4, and a sectional view taken along the line V-V of this snow vehicle as seen from the rear side is as shown in FIG. Further, details of the hinge mechanism 52 and the latch mechanism 54 provided around the hinge mechanism 52 are as shown in FIG. As shown in FIGS. 4 to 6, the bracket 53 is a roughly thick plate or a hollow member provided in the lower part of the crawler frame 24 so as to face downward, and is separated from the front part and the rear part of the crawler frame 24 as appropriate. Location (for example, idler 27 in front)
a) and a rear idler 27d) are fixed by welding or the like, and one pair is provided on each side in the vehicle width direction. A hinge mechanism 52 is provided at the lower end of the bracket 53.

The hinge mechanism 52 comprises a support side 52a and a rotation side 52b. The support side 52a is a hole formed in the lower end portion of the bracket 53 and a shaft member 52a1 fitted or loosely fitted in the hole.
Is the stand arm 5 into which the shaft member 52a1 is fitted.
0c is a hole formed at the end of the vehicle body side. Therefore,
The hinge mechanism 52 allows the stand 50 to rotate about the lower end of the bracket 53 by approximately 90 ° along a plane including the width and the vertical direction of the vehicle body. In addition,
As for the stand arm 50c, the one that is axially mounted on the front bracket 53 is located in front of it, and the rear bracket 5
The one axially mounted on the shaft 3 is provided behind it.

The stand 50 has a substantially flat plate-like main portion 50a extending in the vehicle body width direction and the vehicle body front-rear direction in the snow contact state (the stand upright state) and its body portion 5.
The bending portion 50b that rises obliquely upward from 0a toward the vehicle body is integrally configured. A stand arm 50c extending toward the hinge mechanism 52 is attached to the vehicle body side end of the bent portion 50b by welding or the like. The area of the main portion 50a of the stand 50 on the snow contact side has an area sufficient to prevent the vehicle body from leaning due to the vehicle weight.

The latch mechanism 54 comprises a lock lever 54a and a notch 54b, as shown in detail in FIG. FIG. 6A is a view seen from the front-rear direction of the vehicle body,
6B is a sectional view taken along line VI-VI in FIG. Figure 6
As shown in FIG.
Is fitted in a hole 53a formed in the front-rear direction of the vehicle body and is swingably provided around a shaft 53b fixed to the bracket 53 along the vehicle body width direction. Further, one end of the lock lever 54a projects to the first side of the bracket 53 where the stand arm 50c is provided, and
The other end projects to the second side where the stand arm 50c is not provided. One end of a spring 54c is hooked and fastened to the portion projecting to the second side, and the other end of the spring 54c is hooked and fastened to the bracket 53 toward the vehicle body side, whereby the first portion of the lock lever 54a. The end portion protruding to one side is downward, that is, the support side shaft 52a1.
Is biased in the direction.

The notch 54b is formed on the stand arm 5
0c is attached to the end of the hinge mechanism 52 on the side of the support shaft 5 of the mechanism 52.
The notches are formed in two places about 90 ° apart from 2a1. The notch 54b is formed in such a size that the end portion of the lock lever 54a on the bracket 53 side can be fitted therein and, when fitted, is not easily disengaged even when a rotational force acts on the stand arm 50c. The position and shape of the notch 54b are not limited to this,
As long as the stand 50 can be fixed in the standing position and the lowered position, the stand 50 can be provided in other positions. The latch mechanism 54 may be provided in all the hinge mechanisms 52, or in each of the left and right hinge mechanisms 52, or may be arbitrarily provided.

Since the stand device of the second embodiment is constructed as described above, when the stand 50 is stood, the snow-contacting surface of the stand 50 is completely in contact with the snow-contacting surface, and
When the stand is raised, the side surface of the crawler 20 is covered.
At the same time, the latch mechanism can hold the stand 50 in each of these states. Therefore, when the vehicle is stopped, the vehicle body is continuously supported while the stand is securely set up. Further, at the time of traveling, it is possible to surely store the large-sized stand so as not to hinder the traveling, and it is possible to reliably prevent snow from entering the inner circumference of the crawler 20 from the side of the crawler 20.

The stand of the present invention is not limited to the snow-contacting surface having a substantially flat plate shape like the stands 40 and 50 of the first or second embodiment, and the snow-contacting surface is sufficient. As long as an area can be taken or a sufficient supporting function can be achieved, the snow contact surface can be provided with irregularities or can have a net-like structure. Further, the present invention is not limited to providing the bent portions 40b and 50b on the stands 40 and 50, and the stand arms 40 and 50 can be directly attached to the main portions 40a and 50a.
There may be 50 mounted configurations.

[0031]

As described above, according to the present invention, when a snow vehicle with a crawler is parked, the stand does not sink into the snow when the stand is set up and brought into contact with the snow surface, and Since the stand can be held upright, it can be stably parked in the snow. Also,
Since the stand can be held in the raised state, there is no problem during running. In addition, if the stand is configured to cover the crawler from the rear to the top when the stand is raised,
The stand can also be used as the rear fender of the crawler. Therefore, the large stand can be stored so as not to interfere with traveling. Further, if the stand is configured so as to cover the side of the crawler frame when the stand is lifted, the stand also serves as the side cover of the crawler. Therefore, the large stand can be stored so as not to interfere with traveling. In addition, an excellent effect of preventing snow from entering from the crawler side can be obtained.

[Brief description of drawings]

FIG. 1 is an overall schematic side view showing a snowmobile with a crawler to which a stand device according to a first embodiment of the present invention is attached.

FIG. 2 is a detailed explanatory diagram of a stand device according to the first embodiment.

FIG. 3 is a detailed explanatory view of a hinge mechanism and a latch mechanism of the stand device of the first embodiment.

FIG. 4 is an overall schematic side view showing a snowmobile with a crawler to which a stand device of a second embodiment of the present invention is attached.

FIG. 5 illustrates the stand device of the second embodiment in detail,
It is sectional drawing which follows the VV line in FIG.

FIG. 6 is a detailed explanatory view of a hinge mechanism and a latch mechanism of the stand device according to the second embodiment.

[Explanation of symbols]

 20 crawler 24 crawler frame 40, 50 stand 42, 52 hinge mechanism 42a, 52a hinge mechanism supporting side 42b, 52b hinge mechanism rotating side 43, 53 bracket 44, 54 latch mechanism

Claims (2)

[Claims] 1. A stand device for supporting a snow-covered vehicle with a crawler so as not to tip over when stopped, which stand against the snow surface when the stand is stood, and which sinks into the snow even when the vehicle weight is applied. A stand with a snow-contacting surface with no structure, a hinge mechanism with the support side attached to the crawler frame and the rotation side attached to the stand side, and the stand in both the standing state and the raised state. A stand device for a snow vehicle with a crawler, comprising: 2. The crawler according to claim 1, wherein the stand is configured to cover the crawler from a rear portion to an upper portion thereof or to cover a lateral side of the crawler frame when the stand is raised. Stand equipment for snow vehicles.