JPH04112184U - Roller structure for vehicles traveling on rough terrain - Google Patents

Abstract

(57) [Summary] [Purpose] To make the load distribution on each wheel easy to turn, and to keep all wheels in contact with the ground at all times. [Configuration] When the front wheel 1 rides on a protrusion, , arm 9 and beam 13 are tilted. After that, all the links tilted as they climbed onto the protrusions, and the 8 wheels on one side
All of the rollers 1 to 8 remain in contact with the ground, and the rollers 1 to 8 do not separate from the crawler, thereby preventing the crawler from coming off. In addition, the pivot points of the arms 9 to 12 and beams 13 and 14 are eccentric to the center of the vehicle body, so
As shown in Figure 9, the load distribution is larger on the rolling wheels at the center of the vehicle body, and when the vehicle turns, the reaction force F to the crawler as shown in Figure 11 becomes smaller, reducing turning resistance and making it easier to turn. Increased efficiency.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to wheels for vehicles traveling on rough terrain.

0002

[Conventional technology]

FIG. 4 shows a conventional rough terrain vehicle. 1 to 8 are wheels, 38 is a crawler The off-road vehicle is driven by a crawler 38. 5, 6, and 7 show an example of a conventional traveling device for an all-terrain vehicle. Numbers 1 to 8 in Figs. 5 and 6 are the rolling wheels, and two of the same rolling wheels 1 to 8 are set as 1 set, and the wheels 1 to 8 are attached to the rotating shaft 2. It is incorporated in bogies 30-33 that support 1-28. Also these bogies 30 to 33 are pivotally supported on the vehicle body frame 29 via bogie shafts 34 to 37. Usually, three to four sets of this bogie type suspension system are installed on each side.

0003 In addition, as shown in Figure 7, the crawler 38 of the vehicle traveling on rough terrain has a structure that prevents the wheels from falling off. In order to prevent the wheel from coming off, protrusions 41 and 41' are provided to prevent the wheel from coming off. 41, 41' and rolls on the outer rolling surfaces 42, 42'.

0004

[Problem that the idea aims to solve]

The conventional rough terrain vehicles shown in FIGS. 5, 6, and 7 have the following problems. That is, A vehicle traveling on rough terrain is traveling on a substantially flat surface and all wheels 1 to 8 are in contact with the ground. Then, the weight of the vehicle is uniformly applied to all wheels 1 to 8, and the weight is distributed evenly between the ground and the crawler 38. The ground pressure of the ground becomes uniform (see Fig. 10).

[0005] In addition, when a vehicle traveling on rough terrain attempts to turn, the contact area is Turning resistance occurs at the front and rear of the vehicle, reducing turning efficiency. Also, if the front wheel rides on a protrusion, the wheel at the center of the vehicle will float. Therefore, there was a problem that the crawler 38 came off the wheel. This invention is proposed in view of the above problems, and its purpose is to Make the load distribution on the wheels easy to turn, and keep all wheels in contact with the ground at all times. The object of the present invention is to provide a wheel structure for a vehicle traveling on rough terrain.

[0006]

[Means to solve the problem]

In order to achieve the above purpose, the wheel structure of the all-terrain vehicle of the present invention has one wheel. ~8, and an arm 9 rotatably supporting the co-rotating wheels 1 to 8 via rotating shafts 21 to 28. ~12, and the part of the arm 9~12 that is eccentric toward the center of the vehicle body is connected to the shaft 17~20. The beams 13 and 14 are rotatably supported through the vehicle body. A vehicle body frame that rotatably supports a portion eccentric to the center via shafts 15 and 16. 29, and the movable components are installed on both sides of the vehicle body.

[0007] In addition, the wheel structure of the all-terrain vehicle of the present invention has rollers 1 to 4, and rollers 1 to 4 that rotate. Arms 9 and 10 rotatably supported via rotating shafts 21 to 24 and arms 9 and 1 The part of 0 that is eccentric toward the center of the vehicle body is rotatably supported via shafts 17 and 18. The beam 13 and the part of the beam 13 that is eccentric toward the center of the vehicle body are connected through the shaft 15. It has a vehicle body frame 29 rotatably supported, and includes one set of the movable components. Two sets are installed on one side of the car body.

[0008]

[Effect]

The wheel structure of the all-terrain vehicle of the present invention is constructed as described above, and the wheel structure is constructed as described above. When the user rides on the protrusion, all the arms and beams tilt as they ride on the protrusion. The system keeps all of the wheels in contact with the ground and prevents the wheels from separating from the crawler. , the crawler is prevented from coming off.

[0009] In addition, the pivot points of each arm and each beam are eccentric to the center of the vehicle body, so , the load distribution is made larger on the rolling wheels at the center of the vehicle body, so when the vehicle body turns, the crash occurs. The reaction force on the rollers is reduced, reducing turning resistance and improving turning efficiency.

0010

【Example】

Next, the wheel structure of the rough terrain vehicle of the present invention will be explained with reference to the first embodiment shown in FIGS. 1 and 2. Specifically, 1 to 8 are the rolling wheels, and 9 to 12 are the same rolling wheels 1 to 8 via the rotating shafts 21 to 28. The rotatably supported arms 13 and 14 are located toward the center of the vehicle among the arms 9 to 12. A beam 29 whose eccentric portion is rotatably supported via shafts 17 to 20 is the same beam. The part of the wheels 13 and 14 that is eccentric toward the center of the vehicle body can be rotated via shafts 15 and 16. The body frame is supported by The above movable components are installed on both sides of the vehicle body. has been done.

[0011] Next, the operation of the wheel structure of the rough terrain vehicle shown in FIGS. 1 and 2 will be explained in detail. Ru. As shown in Fig. 2, when the front wheel 1 rides on the protrusion, the arm 9 and the beam 13 is tilted. After that, all the links tilted as they climbed onto the protrusions, All eight wheels 1 to 8 on one side remain in contact with the ground, and the wheels 1 to 8 and the crawler remain in contact with the ground. Since they do not separate, the crawler is prevented from coming off.

0012 In addition, the arms 9 to 12 and beams 13 and 14 have their respective pivot points on the center side of the vehicle body. As a result, the load distribution is shifted toward the center wheel of the vehicle as shown in Figure 9. becomes large, and when the car body turns, the reaction force F to the crawler shown in Fig. 11 becomes small. This reduces turning resistance and improves turning efficiency. Next, the wheel structure of the rough terrain vehicle of the present invention will be explained with reference to a second embodiment shown in FIG. Then, 1 to 4 are rotating wheels, and 9 and 10 are rotating wheels 1 to 4 through rotating shafts 21 to 24. Arms 13 are supported such that arms 9 and 10 can be rotated through shafts 17 and 18. The beam 29 supported by the beam 13 rotatably supported the same beam 13 via the shaft 15. With the vehicle body frame 29, two sets of the above movable components are placed on one side of the vehicle body. Equipped with Each of the above parts shows one set out of two sets.

[0013] Another movable component is explained below: 5 to 8 are rolling wheels, and 11 and 12 are rotating wheels. An arm 14 rotatably supports the wheels 5 to 8 via rotating shafts 25 to 28. A beam in which beams 11 and 12 are rotatably supported via shafts 19 and 20. 4 is also rotatably supported by the vehicle body frame 29 via the shaft 16. Next, the operation of the wheel structure of the off-road vehicle shown in FIG. 3 will be specifically explained. No When the grading vehicle runs, the beams 13 and 14 act as balance rods, and the shafts 15 and 16 The load being applied is 1 at the application points 17, 18 and 19, 20 of the beams 13, 14. /2 each. This point of action is further below the rotation axis of arms 9 to 12. Therefore, 1/2 of each load acts on wheels 1 to 8. An example When the front wheel 7 rides on the protrusion, the arm 9 and beam 13 tilt. After that, all the links tilted as they climbed onto the protrusions, and the 8 wheels on one side All of the wheels 1 to 8 will remain in contact with the ground, and the wheels 1 to 8 will not separate from the crawler. This prevents the crawler from coming off.

[0014]

[Effect of the idea]

The wheel structure (Fig. 1, Fig. 2) of the present invention for an all-terrain vehicle allows the wheel to ride on a protrusion. When this happens, all the arms and beams run onto the protrusions and tilt, causing each wheel Since all of the wheels are kept in contact with the ground and each roller is not separated from the crawler, the crawler's It can prevent it from coming off.

[0015] In addition, in the wheel structure of the same all-terrain vehicle, the pivot points of each arm and beam are connected to the vehicle body. The wheels are eccentric to the center, so the load distribution is greater on the wheels on the center side of the vehicle. Therefore, when the vehicle body turns, the reaction force on the crawler can be reduced, reducing turning resistance. It is possible to improve turning efficiency. In addition, the wheel structure (Figure 3) of the present invention's rough terrain vehicle prevents the wheel from riding on a protrusion. At this time, all the arms and beams are tilted as they ride on the protrusion, and each wheel is tilted. By keeping everything on the ground and not separating the wheels from the crawler, the outer surface of the crawler is This can be prevented.

[0016] In addition, the wheel structure of the same uneven terrain vehicle averages the surface pressure applied to the crawler rolling surface. This can extend the life of the crawler. The wheel structure of the all-terrain vehicle also averages out the load on each shaft, extending the life of the bearings. It can prolong your life.

[Brief explanation of drawings]

FIG. 1 is a side view showing a first embodiment of a wheel structure for an all-terrain vehicle according to the present invention.

FIG. 2 is an explanatory diagram of the operation of the wheel structure of the all-terrain vehicle.

FIG. 3 is a side view showing a second embodiment of a wheel structure for an all-terrain vehicle according to the present invention.

FIG. 4 is a side view showing a conventional all-terrain vehicle.

FIG. 5 is a side view showing a wheel structure of a conventional all-terrain vehicle.

FIG. 6 is an explanatory diagram of the operation of the wheels of the all-terrain vehicle.

FIG. 7 is a front view showing the relationship between wheels and crawlers of the all-terrain vehicle.

FIG. 8 is an explanatory diagram showing the load distribution of each roller in the roller structure of the present invention.

FIG. 9 is an explanatory diagram showing the load distribution of each roller in a conventional roller structure.

FIG. 10 is an explanatory diagram showing turning resistance of a rolling wheel.

[Explanation of symbols]

1-8 Rolling wheel 9-12 Arm 13,14 beam 15,16 axis 17-20 axis 21-28 Rotation axis 29 Body frame

Claims (2)

[Scope of utility model registration request] [Claim 1] The rotating wheels 1 to 8 and the rotating wheels 1 to 8 are connected to the rotating shaft 2.
Arms 9 to 12 rotatably supported via 1 to 28
and a beam 1 that rotatably supports a portion of the arms 9 to 12 that is eccentric toward the center of the vehicle body via shafts 17 to 20.
3, 14, and a body frame 29 which rotatably supports the portion of the beams 13, 14 that is eccentric toward the center of the vehicle body via shafts 15, 16, and the movable components are mounted on both sides of the vehicle body. A wheel structure for a vehicle traveling on rough terrain, which is characterized by being equipped with it. [Claim 2] The rotating wheels 1 to 4 and the rotating wheels 1 to 4 are connected to the rotating shaft 2.
Arms 9 and 10 rotatably supported via 1 to 24
and a beam 13 that rotatably supports a portion of the arms 9, 10 that is eccentric toward the center of the vehicle body via shafts 17, 18.
and a body frame 29 which rotatably supports a portion of the beam 13 that is eccentric toward the center of the vehicle body via the shaft 15, and two sets of the above movable components are installed on one side of the vehicle body. A wheel structure for a vehicle traveling on rough terrain, characterized by the following.