JP2925050B2 - Skid car - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a skid car which is a driving training car capable of intentionally causing a slip condition during driving.

[0002]

2. Description of the Related Art Conventionally, this kind of technology has been disclosed in
When a G sensor for detecting centrifugal force and a rear wheel steering device are provided in a vehicle as described in Japanese Patent No. 7550, and the G sensor detects centrifugal force of a predetermined value or more during turning,
There is known a skid car in which a rear wheel is steered by a rear wheel steering device to cause a slip state.

[0003]

In the prior art, for example, when performing a slip driving training at a driving school or the like, it is necessary that the rear wheels be steerable. Therefore, a rear wheel steerable vehicle is used as a training vehicle. A driving school that does not have a problem in that a rear-wheel steerable vehicle dedicated to slip driving training must be newly prepared.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has as its object to normally use a vehicle capable of rear-wheel steering without preparing a new vehicle. An object of the present invention is to provide a skid car capable of performing a slip driving training using a training car.

[0005]

In order to solve the above problems SUMMARY OF THE INVENTION The present invention is provided with a skid device on the wheel, in deliberately operation training vehicles serving skid car that can cause a slip state to the wheel, the operation training Integrally mounted on car wheels
The skid device to be worn is integrally assembled on the outer portion of the wheel.
Mounting part to be attached, and radially outward of the wheel from the mounting part
And a road surface grounding portion disposed in the, the road surface grounding portion,
Road surface from the axle center of the wheel due to the load on the wheel
Contact with the road surface due to the change in distance between
Road grounding that causes a slip condition by dispersing such loads
A skid device mounted on the wheel .
It is a kid car.

[0006] In the skid device, a plurality of spherical rollers may be disposed on an outer peripheral portion of a disk-shaped wheel mounting portion having a wheel mounting hole.

Further, in the skid device, a plurality of spherical rollers are disposed on an outer peripheral portion of a disk-shaped wheel mounting portion having a wheel mounting hole, and the spherical roller is disposed on the outer peripheral portion of the wheel mounting portion via these spherical rollers. A circular disk may be provided, and a plurality of rod-shaped rollers around an axis parallel to the traveling direction of the skid car may be provided on the outer periphery of the circular disk.

In the skid device, a plurality of rod-shaped rollers having an axis in a direction intersecting the traveling direction of the skid car are arranged on an outer peripheral portion of a disk-shaped wheel mounting portion having a wheel mounting hole. An annular disk is provided on the outer peripheral portion of the wheel mounting portion via these rod-shaped rollers, and a plurality of rod-shaped rollers having an axis in a direction parallel to the traveling direction of the skid car are arranged on the outer peripheral portion of the annular disk. Is also good.

In the skid device, a plurality of spherical rollers are disposed on an outer peripheral portion of a disk-shaped wheel mounting portion having a wheel mounting hole, and the spherical roller is disposed on an outer peripheral portion of the wheel mounting portion via these spherical rollers. A circular disk may be provided, and polyacetal may be used over the entire outer peripheral portion of the circular disk, and the outer peripheral portion of the circular disk may have a round shape.

In the skid device, a plurality of rod-shaped rollers are disposed on an outer peripheral portion of a disk-shaped wheel mounting portion having a wheel mounting hole, the plurality of rod-shaped rollers having an axis intersecting with the traveling direction of the skid car. An annular disk may be provided on the outer peripheral portion of the wheel mounting portion via the rod-shaped roller described above, and polyacetal may be used over the entire outer peripheral portion of the annular disk, and the outer peripheral portion of the annular disk may have a round shape.

Further, the skid device includes a disk-shaped wheel mounting portion having a wheel mounting hole, and a circular disk slidably fitted to an outer peripheral portion of the wheel mounting portion. In addition to using polyacetal, the outer periphery of the annular disk may be formed in a round shape.

The skid device includes a wheel mounting portion having two legs and a wheel mounting hole. A caster wheel is mounted on one end of the leg, and the other end of the wheel is mounted on a spherical roller. You may connect to a mounting part.

The skid device includes a wheel mounting portion having two legs and a wheel mounting hole. A caster wheel is mounted on one end of the leg portion, and the other end is orthogonal to the traveling direction of the skid car. It may be connected to the wheel mounting portion via a rod-shaped roller whose axis is the direction of the rotation.

[0014]

The slip state is intentionally caused.

[0015]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view of a skid car to which the skid device according to any one of claims 2 to 7 is mounted, FIG. 2 is a view showing a slip state of a vehicle without the skid device, and FIG. 3 is claims 2 to 7. FIG. 4 is a front view of the skid device according to claim 2, FIG. 5 is an exploded sectional view of the skid device according to claim 2, and FIG. 6 is a skid according to claim 3. FIG. 7 is an exploded sectional view of the skid device of claim 3, FIG. 8 is a front view of the skid device of claim 4, FIG. 9 is an exploded sectional view of the skid device of claim 4, and FIG. FIG. 11 is an exploded sectional view of the skid device of claim 5, FIG. 12 is a front view of the skid device of claim 6, FIG. 13 is an exploded sectional view of the skid device of claim 6, FIG. 14 is a front view of the skid device according to claim 7, and FIG. FIG. 16 is an exploded sectional view of the skid device according to claim 7, FIG. 16 is a perspective view of a wheel bolt adapter and a wheel nut for mounting the skid device on wheels, and FIG. 17 is a perspective view of the skid device according to any one of claims 2 to 7. FIG. 5 is an exploded perspective view showing a method of mounting the vehicle on wheels.

FIG. 18 is a perspective view of a skid car equipped with the skid device according to claims 8 and 9, FIG. 19 is a view showing a slip state of a vehicle without the skid device, and FIG. 20 is a skid according to claims 8 and 9. FIG. 21 is a diagram showing a slip state of a vehicle equipped with the device, FIG. 21 is a front view of the skid device according to claims 8 and 9,
FIG. 22 is an exploded cross-sectional view of the skid device according to claim 8, and FIG.
FIG. 24 is an exploded cross-sectional view of the skid device of the ninth aspect, and FIG. 24 is an exploded perspective view showing a method of mounting the skid device of the eighth and ninth aspects on wheels.

A skid car C1 shown in FIG. 1 has a skid device S (S2 to S7) mounted on front, rear, left and right wheels T,
The load applied to the wheels T at the time of starting or turning is dispersed to the skid device S to cause a slip state.

FIG. 2 shows how a slip condition occurs.
FIG. The car D without the skid device can turn since the load is entirely applied to the left wheel TL during the right turn, but the skid car C1 equipped with the skid device S has the skid as well as the left wheel TL. Device S
Since the load moves in the centrifugal direction by the skid mechanism of the skid device S, the skid car C1
Goes into a slip state.

In the skid device S2 of the second aspect, four wheel mounting holes 2 are formed in the center of the disk-shaped wheel mounting portion 1 as shown in FIGS. A plurality of concave portions 3 are formed in the portion, and a spherical roller (ball) 4 as a rolling element is fitted in the concave portions 3 so as to roll freely with a part thereof protruding from the concave portion 3. It is mounted on the wheel T by the WB and the wheel nut WN. In addition, the outer diameter of the wheel mounting portion 1 provided with the spherical roller 4 is
It is substantially equal to the outer diameter of the wheel T.

The skid car C1 equipped with the skid device S2 applies a load distributed to the skid device S2 during turning to a centrifugal force direction by a spherical roller 4 disposed on the outer peripheral portion of the wheel mounting portion 1. Move to slip state.

The skid device S3 of the third aspect has four wheel mounting holes 11 formed at the center of the disk-shaped wheel mounting portion 10 as shown in FIGS. A plurality of concave portions 12 are formed in the portion, and spherical rollers (balls) 13 as rolling elements are arranged in these concave portions 12 so as to be able to roll freely.
Outside the outer peripheral portion of the wheel mounting portion 10 via these spherical rollers 13, a circular disk 15 having a plurality of concave portions 14 formed on the inner peripheral portion for rollingly holding the spherical roller 13 is provided. A bar-shaped roller (roller) 17 as a rolling element whose axis is in a direction parallel to the direction of travel of the skid car C1 is rotatably arranged in a groove 16 formed in the outer peripheral portion of the skid car C1.

The outer peripheral surface of the rod 17 can be covered with a rubber member. By doing so, it is preferable that the ride comfort is not uncomfortable. The outer diameter of the circular disk 15 having the rod 17 is substantially equal to the outer diameter of the wheel T, and the skid device S3 is mounted on the wheel T by a wheel bolt adapter WB and a wheel nut WN.

The skid car C1 on which the skid device S3 is mounted moves the load distributed to the skid device S3 in the direction of centrifugal force by the bar-shaped roller 17 disposed on the outer periphery of the annular disk 15 during turning. It becomes slip state.

Further, the spherical roller 13 disposed between the wheel mounting portion 10 and the annular disk 15 causes the wheel mounting portion 10 to rotate at the time of starting and the wheels T to idle and the wheel disk 15 to rotate at the time of braking. Prevents accurate braking and locks.

The skid device S4 of the fourth aspect has four wheel mounting holes 21 formed at the center of the disk-shaped wheel mounting portion 20 as shown in FIGS. A plurality of groove portions 22 are formed in the portion, and a rod-shaped roller (roller) 23 as a rolling element is formed in the groove portion 22 in the skid car C1.
Is arranged so as to be freely rotatable about a direction intersecting with the traveling direction of the wheel, and the rod-shaped roller 23 is rotatably held on the inner peripheral portion outside the outer peripheral portion of the wheel mounting portion 20 via these rod-shaped rollers 23. Disk 25 having a plurality of grooves 24 formed therein, and a plurality of grooves 26 formed on the outer periphery of the circular disk 25
In addition, a bar-shaped roller (roller) 27 as a rolling element having an axis in a direction parallel to the traveling direction of the skid car C1 is disposed so as to freely roll.

The outer peripheral surface of the rod 27 can be covered with a rubber member. By doing so, it is preferable that the ride comfort is not uncomfortable. Note that the outer diameter of the annular disk 25 having the rod-shaped rollers 27 is substantially equal to the outer diameter of the wheel T, and the skid device S4 is mounted on the wheel T by a wheel bolt adapter WB and a wheel nut WN.

The skid car C1 on which the skid device S4 is mounted moves the load distributed to the skid device S4 in the direction of centrifugal force by the rod-shaped roller 27 arranged on the outer periphery of the annular disk 25 during turning. And slip state.

The rod-shaped roller 23 disposed between the wheel mounting portion 20 and the circular disk 25 causes the wheel mounting portion 20 to rotate at the time of starting, causing the wheel T to idle, and the wheel disk 25 to rotate at the time of braking. Prevents accurate braking and locks.

The skid device S5 according to the fifth aspect has four wheel mounting holes 31 formed at the center of a disk-shaped wheel mounting portion 30 as shown in FIGS.
A plurality of recesses 32 are formed on the outer periphery of
A spherical roller (ball) 33 as a rolling element is arranged so as to freely roll, and the spherical roller 33 can be rolled on the inner peripheral part outside the outer peripheral part of the wheel mounting part 30 via these spherical rollers 33. A circular disk 35 having a plurality of concave portions 34 for clamping is provided, a polyacetal 36 is used for the circular disk 35, and the outer peripheral portion of the circular disk 35 is formed in a round shape (R shape).

The outer diameter of the circular disk 35 is substantially equal to the outer diameter of the wheel T, and the skid device S5 is mounted on the wheel T by a wheel bolt adapter WB and a wheel nut WN.

The skid car C1 to which the skid device S5 is mounted shifts the load distributed to the skid device S5 during the turning movement in the direction of centrifugal force by the polyacetal 36 constituting the annular disk 35, and enters a slip state. .

Further, the spherical roller 33 disposed between the wheel mounting portion 30 and the circular disk 35 causes the wheel mounting portion 30 to rotate at the time of starting and the wheels T to idle, and the wheel disk 35 to rotate at the time of braking. Prevents accurate braking and locks.

The skid device S6 according to the sixth aspect has four wheel mounting holes 41 formed at the center of a disk-shaped wheel mounting portion 40 as shown in FIGS.
A plurality of grooves 42 are formed on the outer periphery of the
A rod-shaped roller (roller) 43 as a rolling element is disposed so as to be rotatable about a direction intersecting with the traveling direction of the skid car C1, and is provided outside the outer peripheral portion of the wheel mounting portion 40 via these rod-shaped rollers 43. An annular disk 45 having a plurality of grooves 44 for rollingly holding the bar-shaped roller 43 is provided on the inner peripheral portion. A polyacetal 46 is used for the annular disk 45, and the outer peripheral portion of the annular disk 45 is formed in a circular shape. It is configured as a shape (R shape).

The outer diameter of the annular disk 45 is substantially equal to the outer diameter of the wheel T, and the skid device S6 is mounted on the wheel T by a wheel bolt adapter WB and a wheel nut WN.

The skid car C1 equipped with the skid device S6 shifts the load distributed to the skid device S6 in the direction of centrifugal force by the polyacetal 46 constituting the annular disk 45 during the turning operation, and enters a slip state. .

Further, the rod-shaped roller 43 disposed between the wheel mounting portion 40 and the ring-shaped disk 45 rotates the wheel mounting portion 40 at the time of starting and the wheel T becomes idle, and rotates the wheel-shaped disk 45 at the time of braking. Prevents accurate braking and locks.

The skid device S7 according to the seventh aspect has four wheel mounting holes 51 formed at the center of a disk-shaped wheel mounting portion 50 as shown in FIGS.
0 is provided with a circular disk 53 forming a fitting portion 52 slidable with each other. Polyacetal 54 is used for the circular disk 53, and the circular disk 53 has an outer peripheral portion formed in a round shape (R shape). Have been.

The outer diameter of the annular disk 53 is substantially equal to the outer diameter of the wheel T, and the skid device S7 is mounted on the wheel T by a wheel bolt adapter WB and a wheel nut WN.

The skid car C1 to which the skid device S7 is mounted is shifted in the direction of centrifugal force by the polyacetal 54 constituting the annular disk 53 to make the skid car C1 slip when the vehicle is turning. .

Further, since the lubricating oil 54 is applied to the fitting portion 52 formed between the wheel mounting portion 50 and the ring-shaped disk 53, the wheel mounting portion 50 rotates at the time of starting, and the wheel T is in an idling state. Thus, during braking, the annular disk 53 rotates to prevent accurate braking, and enters a locked state.

FIG. 16 shows a wheel bolt adapter WB and a wheel nut WN for mounting the skid device S to the wheel T. The wheel bolt adapter WB is a wheel mounting nut portion which is screwed and fitted with the wheel mounting bolt TB. WBN and wheel mounting holes 2, 11, 2 of skid device S
1, 31, 41, and 51, and a wheel mounting bolt portion WBB for tightening the wheel nut WN.

As shown in FIG. 17, the skid devices S2 to S7 are mounted on the wheel T by screwing the wheel mounting nut portion WBN of the wheel bolt adapter WB to the wheel mounting bolt TB of the wheel T, and further mounting the wheel. Wheel mounting holes 2, 11, 21, 31, 41,
51, the wheel nut WN is tightened to the wheel mounting bolt portion WBB, and the skid devices S2 to S7 are
Fixed to.

The skid car C1, which is constructed by fixing the skid devices S2 to S7 to the wheels T,
Various road surface conditions such as a wet road surface during rainfall and a road surface during freezing by changing the load applied to the skid devices S2 to S7 by a method of changing the outer diameter of S7 or a method of changing the pressure inside the tire of the wheel T. Can reproduce the slip phenomenon.

FIG. 18 shows a skid device S (S8, S9).
Is mounted on a wheel T to show a skid car C2. The skid car C2 distributes the load applied to the wheels T at the time of starting or cornering to the skid device S to cause a slip state.

FIG. 1 shows how a slip condition occurs.
9 and FIG. The vehicle D without the skid device can turn since the load is entirely applied to the left wheel TL during the right turn, but the skid car C2 equipped with the skid device S has the skid as well as the left wheel TL. Since the load is moved to the centrifugal force direction by the skid mechanism of the skid device S because it is also dispersed to the device S, the skid car C2 enters a slip state.

As shown in FIGS. 21 and 22, the skid device S8 according to the eighth aspect has a cylindrical wheel mounting portion 62 having two leg portions 60 and four wheel mounting holes 61 formed in the center. A caster wheel 63 is attached to one end of each leg 60, and a cylindrical member 6 that covers the outer peripheral surface of the wheel mounting portion 62 is attached to the other end.
4 and is connected to the wheel mounting portion 62 via a spherical roller (ball) 65 as a rolling element.

The wheel mounting portion 62 and the cylindrical member 64 are fitted in a plurality of concave portions 66 formed on the outer peripheral surface of the wheel mounting portion 62.
5 is arranged so as to roll freely, and a concave portion 67 for rollingly holding the spherical roller 65 is provided on the inner periphery of the cylindrical member 64 outside the outer peripheral surface of the wheel mounting portion 62 via these spherical rollers 65. A plurality is formed on the surface and slidably engaged.

The skid device S8 is mounted on the wheel T by a wheel bolt adapter WB and a wheel nut WN.

In the skid car C2 equipped with the skid device S8, the load distributed to the skid device S8 during the turning movement is moved in the direction of centrifugal force by the caster wheels 63 attached to one end of the leg 60 to slip. State.

The spherical roller 65 disposed between the leg portion 60 and the wheel mounting portion 62 allows the wheel mounting portion 6 to be set when starting.
2 rotates, and the wheel T enters the idling state, and at the time of braking, the caster wheel 63 rotates to prevent accurate braking, and enters the locked state.

As shown in FIGS. 21 and 23, the skid device S9 according to the ninth aspect has two leg portions 70 and a columnar wheel mounting portion 72 having four wheel mounting holes 71 formed in the center. A caster wheel 73 is attached to one end of each leg 70, and a cylindrical member 7 that covers the outer peripheral surface of the wheel mounting portion 72 is attached to the other end.
4 is formed and connected to the wheel mounting portion 72 via a rod-shaped roller (roller) 75 as a rolling element.

The wheel mounting portion 72 and the cylindrical member 74 are fitted in a plurality of grooves 76 formed on the outer peripheral surface of the wheel mounting portion 72 in the form of a rod-shaped roller 7.
5 is rollably disposed, and a groove 77 for rollingly holding the rod 75 is provided on the inner periphery of the cylindrical member 74 outside the outer peripheral surface of the wheel mounting portion 72 through the rod 75. A plurality is formed on the surface and slidably engaged.

The skid device S9 is mounted on the wheel T by a wheel bolt adapter WB and a wheel nut WN.

The skid car C2 equipped with the skid device S9 slips by moving the load distributed to the skid device S9 during the turning movement in the direction of centrifugal force by the caster wheels 73 attached to one end of the leg 70. State.

Further, a rod-shaped roller 75 disposed between the leg 70 and the wheel mounting portion 72 allows the wheel mounting portion 7 to be used when starting.
2 rotates, and the wheel T enters the idling state, and at the time of braking, the caster wheel 73 rotates to prevent accurate braking, and enters the locked state.

As shown in FIG. 24, the skid devices S8 and S9 are mounted on the wheel T by screwing the wheel mounting nut portion WBN of the wheel bolt adapter WB to the wheel mounting bolt TB of the wheel T, and further mounting the wheel. The wheel mounting holes 61,
71, the wheel nut WN is tightened to the wheel mounting bolt portion WBB, and the skid devices S8 and S9 are
Fixed to.

The skid car C2 constituted by fixing the skid devices S8 and S9 to the wheels T is a skid car C2.
By changing the load applied to the skid devices S8 and S9 by changing the outer diameter of S9 or the pressure in the tire of the wheel T, various road surface conditions such as a wet road surface during rainfall and a road surface during freezing. Can reproduce the slip phenomenon.

[0058]

According to the present invention, as described above ,
A child device is provided on the wheel, and the wheel is intentionally slipped.
Driving training car that can wake up to skid car
A ski that is integrally mounted on the wheels of the driving training car.
The padding device is a device integrally assembled to the outer portion of the wheel.
A mounting portion and a wheel disposed radially outward from the mounting portion.
Road surface grounding portion, wherein the road surface grounding portion is attached to the wheel.
The distance from the axle center of the wheel to the road surface due to the load
Load on the wheel that comes into contact with the road surface due to change in separation
Is a road contact part that causes a slip condition by dispersing
By mounting the skid device on the wheel,
Since the docker is configured, simply attach a low-cost detachable skid device to the outside of the wheel so that it is integrated ,
A training car usually used in a driving school can be easily made a skid car. Further, since the slip state can be changed only by changing the tire air pressure, it is possible to practice all kinds of slip driving.

[Brief description of the drawings]

FIG. 1 is a perspective view of a skid car equipped with a skid device according to claim 2;

FIG. 2 is a diagram showing a slip state of a vehicle without a skid device.

FIG. 3 is a diagram showing a slip state of a vehicle equipped with the skid device according to any one of claims 2 to 7;

FIG. 4 is a front view of the skid device according to claim 2;

FIG. 5 is an exploded sectional view of the skid device according to claim 2;

FIG. 6 is a front view of the skid device according to claim 3;

FIG. 7 is an exploded sectional view of the skid device according to claim 3;

FIG. 8 is a front view of the skid device according to claim 4;

FIG. 9 is an exploded sectional view of the skid device according to claim 4.

FIG. 10 is a front view of the skid device according to claim 5;

FIG. 11 is an exploded sectional view of the skid device according to claim 5;

FIG. 12 is a front view of the skid device according to claim 6;

FIG. 13 is an exploded sectional view of the skid device according to claim 6;

FIG. 14 is a front view of the skid device according to claim 7;

FIG. 15 is an exploded sectional view of the skid device according to claim 7;

FIG. 16 is a perspective view of a wheel bolt adapter and a wheel nut for mounting the skid device on a wheel.

FIG. 17 is an exploded perspective view showing a method of mounting the skid device according to any one of claims 2 to 7 on a wheel.

FIG. 18 is a perspective view of a skid car to which the skid device according to claim 8 is mounted.

FIG. 19 is a diagram showing a slip state of a vehicle without the skid device.

FIG. 20 is a diagram showing a slip state of the vehicle equipped with the skid device according to claims 8 and 9;

FIG. 21 is a front view of the skid device according to claims 8 and 9;

FIG. 22 is an exploded sectional view of the skid device according to claim 8;

FIG. 23 is an exploded sectional view of the skid device according to claim 9;

FIG. 24 is an exploded perspective view showing a method of mounting the skid device of claim 8 on a wheel.

[Explanation of symbols]

1, 10, 30, 40, 50, 62, 72... Wheel mounting portion, 2, 11, 21, 31, 41, 51, 61, 71.
Wheel mounting holes, 4, 13, 33, 65 ... spherical roller (ball),
15, 25, 35, 45, 53 ... annular disk, 17, 2
3, 27, 43, 75 ... rod-shaped rollers (rollers), 36, 4
6, 54 ... polyacetal, 60, 70 ... legs, 63,
73 ... Caster wheels, C1, C2 ... Skid cars,
S, S2, S3, S4, S5, S6, S7, S8, S9
... Skid device, T ... Wheel.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-212681 (JP, A) JP-A-6-82658 (JP, U) JP-A-6-37860 (JP, U) JP-A-56 135301 (JP, U) JP 3-7550 (JP, B2) JP 2 21098 (JP, Y2) JP 2-24153 (JP, Y2) JP 62-3333 (JP, Y2) (58) Field surveyed (Int.Cl. ⁶ , DB name) B60B 19/00 G09B 19/16 G09B 9/042 A63G 25/00

Claims (9)

(57) [Claims] 1. A skid car, which is a driving training vehicle capable of intentionally causing a slip state on the wheels, provided with a skid device mounted on wheels of the driving training vehicle. Skid equipment
A mounting portion integrally assembled to an outer portion of the wheel;
Road surface grounding part arranged radially outward of the wheel from the mounting part
And the road surface grounding portion includes a wheel
Due to a change in the distance between the axle center and the road surface
Contact, disperse the load on the wheel and slip
A road surface ground portion causing state, skid car, characterized in that said skid device is attached to the wheel. 2. The skid car according to claim 1, wherein the skid device has a plurality of spherical rollers arranged on an outer peripheral portion of a disk-shaped wheel mounting portion having a wheel mounting hole. 3. The skid device according to claim 1, wherein a plurality of spherical rollers are disposed on an outer peripheral portion of a disk-shaped wheel mounting portion having a wheel mounting hole, and the outer peripheral portion of the wheel mounting portion is provided via these spherical rollers. 2. The skid car according to claim 1, wherein a ring-shaped disk is provided, and a plurality of rod-shaped rollers having an axis in a direction parallel to the traveling direction of the skid car are arranged on an outer peripheral portion of the ring-shaped disk. 4. The skid device according to claim 1, wherein a plurality of rod-shaped rollers having an axis in a direction intersecting a traveling direction of the skid car are arranged on an outer peripheral portion of a disk-shaped wheel mounting portion having a wheel mounting hole. An annular disk is provided on the outer peripheral portion of the wheel mounting portion via these rod-shaped rollers, and a plurality of rod-shaped rollers having an axis in a direction parallel to the traveling direction of the skid car are arranged on the outer peripheral portion of the annular disk. Item 2. The skid car according to item 1. 5. The skid device according to claim 1, wherein a plurality of spherical rollers are disposed on an outer peripheral portion of a disk-shaped wheel mounting portion having a wheel mounting hole, and the spherical roller is disposed on an outer peripheral portion of the wheel mounting portion via these spherical rollers. 2. The skid car according to claim 1, wherein a circular disk is provided, and polyacetal is used over the entire outer peripheral portion of the circular disk, and an outer peripheral portion of the circular disk is formed in a round shape. 6. The skid device according to claim 1, wherein a plurality of rod-shaped rollers are provided on an outer peripheral portion of a disk-shaped wheel mounting portion having a wheel mounting hole, the plurality of rod-shaped rollers having an axis intersecting with a traveling direction of the skid car. 2. A circular disk is provided on the outer peripheral portion of the wheel mounting portion via the rod-shaped roller, and polyacetal is used over the entire outer peripheral portion of the circular disk, and the outer peripheral portion of the circular disk has a round shape. Skid car. 7. The skid device includes a disk-shaped wheel mounting portion having a wheel mounting hole, and a ring-shaped disk slidably fitted to an outer peripheral portion of the wheel mounting portion. The skid car according to claim 1, wherein polyacetal is used, and an outer peripheral portion of the ring-shaped disk has a round shape. 8. The skid device includes a wheel mounting portion having two legs and a wheel mounting hole, and a caster wheel is mounted on one end of the leg and the wheel is mounted on the other end via a spherical roller. The skid car according to claim 1, wherein the skid car is connected to a mounting portion. 9. The skid device includes a wheel mounting portion having two legs and a wheel mounting hole, a caster wheel mounted on one end of the leg, and the other end orthogonal to the traveling direction of the skid car. The skid car according to claim 1, wherein the skid car is connected to the wheel mounting portion via a rod-shaped roller having an axis in a direction in which the wheel is mounted.