JP2959684B2 - Vehicles for transporting cars - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle for transporting automobiles, and more particularly to a vehicle for transporting automobiles having an axle whose tread is variable when loading and unloading automobiles.

[0002]

2. Description of the Related Art In a conventional vehicle for transporting a vehicle, for example, a semi-trailer for transporting a vehicle, when a large vehicle having a vehicle width of 170 cm or more is transported, the tread of the rear wheel of the trailer is widened when loading and unloading the vehicle. There is one that restores the tread narrowly after passing.

One example is disclosed in Japanese Patent Application Laid-Open No. 25760/1990.
There is a trailer 1 having a tread variable axle as shown in FIGS.

FIGS. 4 and 5 are schematic sectional views of the trailer 1 as viewed from the rear. The rear axle 3 on the side where the vehicle 2 is unloaded is an outer axle 3A and a hydraulic cylinder device contained therein. And an inner axle 3B as a variable rod of
A rear wheel 4 is supported at the tip of the inner axle 3B, and is a variable tread axle.

In the figure, reference numeral 5 denotes a brake chamber, 6 denotes a jack for lifting the rear portion of the vehicle body until the rear wheels 4 rise when the tread is widened, 7 denotes a leaf spring, and 8 denotes a fender covering the rear wheels 4. A fender 7 that covers a wheel mounted on the tread variable axle is mounted on the inner axle, and is displaceable in the vehicle width direction together with the rear wheel 4.

[0006]

As described above, when the fender is mounted on the variable tread axle, when the wheels are displaced with respect to the vehicle body by rolling or the like during driving of the vehicle, the goods loaded on the vehicle are displaced. It may come into contact with and damage the car.

Therefore, conventionally, the distance between the inner surface of the fender in the vehicle width direction and the loaded vehicle must be equal to or greater than a predetermined value. Therefore, even if a variable tread axle is provided, the displacement of the fender in the vehicle width direction is not possible. There is a problem that the maximum value of the vehicle width of the loaded vehicle must be reduced.

The present invention has been made in view of the above-mentioned conventional problems, and is intended to prevent a fender covering a wheel attached to a variable tread axle from being largely displaced inward in a vehicle width direction during driving of a vehicle. It is another object of the present invention to provide a vehicle for transporting a vehicle, which can increase the width of the loaded vehicle.

[0009]

SUMMARY OF THE INVENTION According to the present invention, a vehicle is loaded and unloaded from a rear end of a vehicle, and both ends of a rear axle are expanded and contracted so that a tread of the rear wheel is variable. In a vehicle for transporting vehicles provided with a fender that covers the fender,
A sliding mechanism that supports the rear wheel in such a manner that the fender is slidable in the vehicle width direction in synchronization with the rear wheel, and that the fender is swingable about a horizontal axis in the vehicle front-rear direction with respect to the rear axle, and is slidable in the vertical direction. The above object is achieved by providing a relative displacement absorbing mechanism connected to the first and second members.

[0010] The slide mechanism may be arranged in a pair at the front and rear of the rear wheel to support front and rear ends of the fender.

Further, the relative displacement absorbing mechanism includes a beam in the vehicle longitudinal direction which is slidable in the vehicle longitudinal direction and non-displaceable in the vehicle width direction with respect to the rear axle. , Swingably engaged around the beam axis,
A connecting member connected to the front and rear ends of the fender;
May be included.

[0012]

In the present invention, the fender is supported on the vehicle body side so as to be slidable in the vehicle width direction in synchronization with the variable tread axle by the slide mechanism, and the fender is moved forward and rearward by the relative displacement absorbing mechanism. Is connected to the tread variable axle so that it can swing around the axis of the direction and slide up and down, so that the fender moves following the tread change of the tread variable axle, and rolling etc. occurs during vehicle operation In this case, the displacement of the wheel is permitted with respect to the fender, thereby suppressing the displacement of the fender itself, preventing the vehicle from falling down in the vehicle width direction, and suppressing contact with the loaded commercial vehicle. it can. Therefore,
The maximum width of the vehicle to be loaded can be increased.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

In this embodiment, as shown in FIGS. 1 to 3, the vehicle is loaded and unloaded from the rear end of the vehicle as shown in FIGS. 4 and 5, and both ends of the rear axle expand and contract. The tread of the rear wheel is variable, and the fender 11 is synchronized with the rear wheel 13 with respect to the vehicle body 12 in a vehicle 10 (not shown in the figure) having a fender covering the rear wheel. The fender 11 is connected to the rear axle 15 so as to be swingable around an axis in the vehicle front-rear direction and slidable in the vertical direction with respect to the rear axle 15. And a relative displacement absorbing mechanism 16.

The rear axle 15 includes an outer axle 15A fixed to the vehicle body and an inner axle 15B disposed inside the outer axle 15A so as to be extendable and contractible in the vehicle width direction.

The slide mechanism 14 is a part of the vehicle body 12, and cross members 12A and 12B disposed in front and rear of the rear wheel 13 in the vehicle width direction, respectively.
A guide member 18 protruding toward the third side and horizontally disposed in the vehicle width direction, and a slide rail having a substantially U-shaped cross section slidably fitted to the upper and lower surfaces of the guide member 18 and the surface on the rear axle 15 side. 20.

The slide rail 20 includes a fender 11
Are integrally connected to the front and rear ends (lower ends) of the front end.

The slide rail 20 is provided on the guide member 1.
8 is provided integrally with a slide rod 20A penetrating in the vehicle body width direction and in the horizontal direction.
From falling off is prevented.

Between the upper and lower surfaces of the guide member 18 and the inner surface of the slide rail 20, a non-grease type resin plate 18 for reducing frictional resistance is mounted on the guide member 18 side. .

The sliding surface between the slide rod 20A and the guide member 18 is supplied with lubricating grease from a grease nipple 20B.

The fender 11 covers the upper surface of the rear wheel 13 and its front and rear ends are connected by a main frame 11A. The main frame 11A has a rear wheel 1
3 is curved so as to be concave downward so as to avoid interference with the knuckle 13A at the center of the rear wheel 13 in a side view.

The fender 11 is arranged in an arc shape inside the fender, and is supported by a sub-frame 11B attached to the main frame 11A.

The front and rear ends of the main frame 11A are connected to the upper surface of the slide rail 20.

The relative displacement absorbing mechanism 16 comprises a vertical displacement absorbing mechanism 22 and a tilt displacement absorbing mechanism 24.

The vertical displacement absorbing mechanism 22 includes a beam 26 disposed in the rear axle 15 below the inner axle 15B in the vehicle body front-rear direction and horizontally, and droops integrally from below the inner axle 15B. The beam 26
A slide guide 28 that is slidable in the vertical direction and displaceable in the vehicle width direction with respect to the center portion of the vehicle body in the front-rear direction;
It is composed of

The beam 26 has a rectangular cross section,
A no-grease type resin plate 27 for reducing frictional resistance is attached to a vertical surface on both sides in the vehicle width direction of a portion in sliding contact with the slide guide 28.

The slide guide 28 has a guide surface 28A which sandwiches the pair of resin plates 27 from both sides in the vehicle body width direction and slides on the resin plates 27 in the vertical direction.

At both ends of the beam 26 in the vehicle longitudinal direction,
A shaft 30 having a circular cross section is formed.

A connecting member 32 is engaged with the shaft 30 so as to be swingable around the axis of the beam 26. The connecting member 32 is integrally formed below the end of the main frame 11A of the fender 4 in the vehicle longitudinal direction. Are linked together.

The tilt displacement absorbing mechanism 24 includes the shaft 30
And the connecting member 32 are configured to be swingably engaged around the axis of the beam 26.

The outer axle 15A and the inner axle 15B are both formed in a square pipe shape.

1 is a leaf spring for elastically supporting the outer axle 15A on the vehicle body, 38 is a leaf spring bracket, and 40 is a side frame disposed immediately above the fender 11.

The movement of the inner axle 15B in the rear axle 15 in the width direction of the vehicle is determined by the method described in Japanese Patent Laid-Open No. 1-257.
As disclosed in Japanese Unexamined Patent Publication No. 603, the lock device is fixed at a predetermined position.

The driving device of the rear axle 15 in the tread variable direction is the same as that disclosed in Japanese Patent Application Laid-Open No. 1-257603, and will not be described.

In the above embodiment, when the rear axle 15 and the rear wheels 13 are driven in the vehicle width direction, the fender 11 is moved through the main frame 11A, the tilt displacement absorbing mechanism 24, the beam 26 and the slide guide 28 to the rear. Axle 1
5 are integrally connected to the vehicle body 12 in the vehicle width direction, and are supported by the slide mechanism 14 so as to be slidable in the vehicle width direction with respect to the vehicle body 12 side.
5 and the rear wheel 13 integrally move in the vehicle width direction.

During operation of the vehicle 10, the rear axle 15 and the rear wheels 13 are fixed such that the tread does not widen.

In this state, the inside axle 15B and the rear wheel 13 move up and down with respect to the vehicle body 12 by rolling or the like during running, or the rear wheel 13 falls down inside the vehicle width direction in addition to the vertical movement. When moving, the vertical movement is absorbed by the vertical displacement absorbing mechanism 22,
The swing is absorbed by the tilt displacement absorbing mechanism 24.

More specifically, when the inner axle 15B and the rear wheel 13 are vertically displaced with respect to the fender 11 fixed to the body while the vehicle is running, the slide guide 28 below the inner axle 15B is displaced. The beam 26 is displaced in the vertical direction, so that the fender 1 of the rear wheel 13 is moved.
1 is allowed.

When the rear wheel 13 makes a rocking motion such that it falls down into the vehicle body, the beam 26 and the shaft 30 are connected to the connecting member 32 connected to the fender 11 fixed to the vehicle body 12 side. Swings about its axis, thereby absorbing the swing displacement in the falling direction.

At this time, the slide guide 28 and the beam 2
6 will be tilted integrally.

In the above embodiment, even if the inner axle 15B and the rear wheel 13 are displaced by rolling or the like in a direction in which the inner wheel axle 15B and the rear wheel 13 fall inward in the vehicle body width direction or the vehicle body width direction, the displacement does not reach the fender 11 and the relative displacement absorbing mechanism. The fender 11 is not displaced inward in the width direction of the vehicle body because the fender 11 is absorbed.

Accordingly, it is possible to increase the maximum width of the loaded vehicle 1 and minimize the gap between the vehicle 1 and the inside of the fender 11.

Here, when the rear wheel 13 is inclined with respect to the fender 11, the gap between the two must be increased in order to avoid interference between them, and as a result, the fender 1
A question arises as to whether the position 1 cannot be provided so as to be shifted outward in the vehicle width direction.

However, the gap between the wheel and the fender must be set to a certain value or more due to the heat radiation of the wheel and the attachment of the chain. Interference between the wheel and the fender can be sufficiently avoided.

In the above embodiment, the relative displacement absorbing mechanism 16 comprises a vertical displacement absorbing mechanism 22 comprising a beam 26 and a slide guide 28, a shaft 30 and a connecting member 32.
However, the present invention is not limited to this, and if necessary,
Any structure can be used as long as it is fixed to the vehicle body 12 and can absorb the relative displacement of the rear wheel 13 with respect to the fender 11 during running of the vehicle.

Therefore, for example, a mechanism in which the center portion of the beam 26 slidably engaged with the slide guide 28 is formed so as to be swingable around the axis, the main frame 11A of the fender 11 and the member on the rear axle 15 side are used. Alternatively, they may be connected via a mechanism capable of absorbing vertical displacement and tilt displacement.

The automatic transport vehicle includes a trailer.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an embodiment of a vehicle for transporting an automobile according to the present invention as viewed from the rear of the vehicle.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a view taken along the line III-III in FIG. 1;

FIG. 4 is a schematic rear view showing a rear wheel and a rear axle during traveling of the vehicle for transporting automobiles according to the embodiment.

FIG. 5 is a schematic rear view showing a tread widening state in the vehicle for transporting automobiles.

[Explanation of symbols]

 2 ... Car, 10 ... Car transport vehicle, 11 ... Fender, 12 ... Car body, 13 ... Rear wheel, 14 ... Slide mechanism, 15 ... Rear axle, 15A ... Outer axle, 15B ... Inner axle, 16 ... Relative transformer absorption Mechanism: 18: guide member, 20: slide rail, 22: vertical displacement absorbing mechanism, 24: tilt displacement absorbing mechanism, 26: beam, 28: slide guide, 30: shaft, 32: connecting member.

Claims (3)

(57) [Claims] An automobile is loaded and unloaded from a rear end of the vehicle, and both ends of a rear axle extend and contract so that a tread of a rear wheel is variable and a fender covering at least an upper portion of the rear wheel is provided. In the transport vehicle, a sliding mechanism that supports the fender with respect to the vehicle body so as to be slidable in the vehicle width direction in synchronization with the rear wheel, and that the fender is horizontal with respect to the rear axle in a vehicle longitudinal direction. A vehicle for transporting vehicles, comprising: a relative displacement absorbing mechanism that is swingable about an axis and is slidably connected in a vertical direction. 2. The apparatus according to claim 1, wherein the slide mechanism comprises:
A vehicle for transporting automobiles, wherein a pair is disposed before and after the rear wheel to support front and rear ends of the fender. 3. The vehicle body longitudinal direction beam according to claim 1, wherein the relative displacement absorbing mechanism slidably engages the rear axle in the vehicle body longitudinal direction and displaces in the vehicle width direction. A connecting member engaged with the front and rear ends of the beam so as to be swingable about the beam axis and connected to the front and rear ends of the fender. .