JPH07257261A - Vehicle carrier car - Google Patents

Abstract

PURPOSE:To keep stability during traveling by housing a footboard to be freely slidable, providing a footboard in/out driving means to drive the footboard in a protruding direction. and actuating an inclination action part in the condition where its forward end reaches the inclination action part. CONSTITUTION:A feed side start switch is pushed in the condition where footboards 20, 20 are in containing positions, so hydraulic motors 27, 27 are actuated in a feeding direction for the footboards to the rear end side. When a forward end of the footboard 20 gets off the side of a load-carrying platform main body part 1A to be moved to the side of guides 10a, 10b of an incliation action part 1B. action of a hydraulic cylinder in a retraction direction is started, so the inclination action part 1B is inclined to a specified angle. In the meanwhile, the footboards 20 are fed to specified positions where they are stopped automatically. Grounding plates 23, 23 are thus grounded, and the footboard 20 is set between a platform 1 and the ground.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a truck, a passenger car, etc.
The present invention relates to a vehicle transport vehicle in which an ordinary automobile is self-propelled and loaded and unloaded.

[0002]

2. Description of the Related Art Generally, as a vehicle carrier of a type in which an automobile is self-propelled and loaded on a carrier bed of a carrier vehicle, a foldable step board is attached to the rear end of the carrier bed, and it is stood up while traveling.
There is a method of laying it down when loading and unloading and hanging it between the loading platform and the ground. In addition, a tilting operation part that can tilt the rear side low is provided in the rear part of the body of the luggage carrier, and a step board is stored in the tilting operation part, and this is projected toward the extension direction side of the tilting operation part and tilted to tilt. There is one that has a walking board laid between the tip of the operating part and the ground surface.

[0003]

SUMMARY OF THE INVENTION The structure of the above-described conventional vehicle carrier having the walk plate attached to the rear portion of the loading platform so that the walk plate can be laid down is such that the walk plate is run at the rear end of the loading platform. Therefore, there is a problem in that the longer the walking board is, the less stable the vehicle is during running and the greater the wind resistance, and the greater the effect thereof, especially when the cargo is empty.

Further, in the case of the type in which the rear part of the loading platform is tilted and the step board is extended from the part, the tilting motion part needs to be at least behind the axle, and this cannot be made too long. Therefore, there was a limit to the length of the walk board. For this reason, the angle of the inclined part from the ground surface to the top of the loading platform becomes large, and in the case of a vehicle with a low vehicle height such as a sports type vehicle, the bottom of the vehicle body touches the road surface and the bent portion of the loading platform when loading and unloading. However, there was a problem that it could not be loaded and unloaded.

In view of the above problems, the present invention makes it possible to reduce the inclination angle of the loading platform and the step board when loading and unloading by using a longer step board, and whether the vehicle is loaded or unloaded. First, the purpose of the present invention is to provide a vehicle carrier having good stability during traveling.

[0006]

The features of the present invention for solving the above-mentioned conventional problems and achieving the intended purpose are as follows.
A rear end of a main body of the body provided on the vehicle body is provided with a tilting operation part that is driven to be bent in a direction tilting toward the ground side, and a step board is provided so as to project in an extension direction of the tilting operation part. In a vehicle carrier, step board storage guides are continuously arranged on the luggage carrier main body section and the tilting operation section, and the step boards are slidably accommodated while straddling both the sections, and the step board entrance / exit drive is performed. Means is provided for driving the walking board in the protruding direction, and the tilting operation section is operated with the front end thereof reaching the tilting operation section.

[0007]

In the vehicle carrier of the present invention, except when the vehicle is being loaded / unloaded, the tilting operation part is raised to the position in which the main body of the loading platform is extended, and the tilting operation part is straddled within the main body part and the tilting operation part. The walking board is stored. At the time of loading / unloading work, the loading / unloading drive means is operated to move the step board to the rear of the loading platform, and the rear end is extended to the rear of the tilting operation unit. Then, when the front end of the step board has moved from the luggage carrier main body portion to the tilting operation portion side, the tilting operation portion is bent with respect to the luggage carrier main body portion in the direction in which the rear end side is lowered. The walk board is moved to a predetermined position where the front end portion remains in the tilt motion section and stops, and the front end of the walk board touches the ground surface near the tilt side operation end of the tilt motion member, and the ground surface and the tilt motion section A walk board is hung between them.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 is a carrier of a vehicle carrier according to the present invention, which is installed on a chassis 2. Note that this transport vehicle is obtained by modifying only the cargo bed of an ordinary truck, and although not shown in the figure, the traveling drive mechanism is the same as that of an ordinary cargo transport vehicle.

The luggage carrier 1 is composed of a luggage carrier main body 1A having a length from a position above the rear wheel 8 to a rear side of the rear wheel 8 and a tilting motion portion 1B extending in a rear end extension direction of the main body 1A. The luggage carrier body 1A includes four walk board storage guides 3 in the front-rear direction.
It has a, 3a, 3b and 3b. This each guide 3
Each of a and 3b is made of a channel material having a U-shaped cross section, and two pairs of two guides 3a and 3b are provided as one pair, and the pair of guides 3a and 3b are installed with the U-shaped open sides facing each other.

The step board storage guides 3a, 3b are positioned relative to each other via a large number of upper and lower rails 4, 5, and a loading platform floor board 6A is installed on the upper horizontal rail 4.
Reference numeral 7 denotes fixed side frames fixed to both ends of the horizontal rail 4 on both sides of the loading platform.

The tilting motion section 1B of the loading platform 1 is composed of the loading platform body 1
Guide members 10a, 10a of the same shape oriented toward the extension direction at the rear ends of the step board storage guides 3a, 3a, 3b, 3b of A.
It has 10b and 10b, and the top and bottom of them have a cross rail 1.
1, 12 are connected to each other, and a cargo floor plate 6B is installed on the upper horizontal rail 11. 4 guide materials 10
a and 10b are step board storage guides 3a of the carrier body 1A,
An end lower edge side is pivotally attached to a rear end of 3b through a pivot shaft 13,
The guides 3a and 3b are supported so as to be rotatable in an obliquely downward direction from the extending direction.

As shown in FIG. 6, the inclining portion 1B is driven to rotate by hydraulic cylinders 14 and 14 between an extending direction (generally horizontal direction) of the carrier body and an obliquely downward inclining direction.

The hydraulic cylinders 14, 14 are the body 1 of the luggage carrier.
It is interposed between the cylinder support portion 15 below the rear end of A and the cylinder support portion 16 below the tilting motion portion 1B. The cylinder support portion 16 on the side of the tilting motion portion 1B includes a short link 17 having a base end pivotally supported so as to project to the lower surface of the tilting motion portion 1B, and a long link 18 having a base end pivotally supported on the side of the luggage carrier body 1A. , And the ends of both links 17, 18 are pivotally attached by a shaft 19,
The shaft 19 is pivotally supported by the tips of the inlet / outlet shafts 14a of the hydraulic cylinders 14, 14.

A step board 20 is housed in each of the guides 3a, 3b and 10a, 10b of the loading platform body 1A and the tilting motion portion 1B. This step board 20 has a pair of ladder-like frames 21 and 21 which are inserted into the pair of guides 3a, 3b and 10a, 10b facing each other. The plates 22 and 22 are fixed. Ground plates 23, 23 each having a wedge-shaped cross section are pivotally attached to the rear ends of both the ladder-shaped frames 21, 21 so as to be rotatable only upward. A connecting member 2 is provided between the two ground plates 23, 23.
4 are integrally connected.

In this step board 20, both the ladder frames 21 and 21 are arranged linearly in a state where the tilting operation portion 1B is in the extension direction position of the luggage carrier body portion 1A, that is, the rear end is on the ascending position side. The guides 3a, 10a and 3b, 10b are inserted and stored in the guides 3a, 10a and 3b, 10b.
Racks 25, 25 are fixed to the inner facing surfaces of the rack 1, respectively, and the pinion gears 26, 26 meshing with the racks 25, 25 are provided on the guides 10a, 1 of the tilting motion portion 1B.
0b is rotatably supported inside the hydraulic motors 27, 2
The step board 20 is sent out to the rear of the tilting operation portion 1B by this, and the sent step board 20 is drawn into the guides 3a, 3b.

The tilting motion unit 1B is controlled so that the tilting direction side motion is not performed until after the step board 20 is sent backward and the front end thereof is moved to the tilting motion unit 1B side. There is. Although not shown in detail in the figure,
The hydraulic circuits are switched using various limit switches so that the steps 20 and 20 are fed out and retracted and the tilting operation unit 1B is automatically operated in cooperation with each other. .

That is, from the state where the step boards 20, 20 are in the storage position, by pushing the sending side start switch, the hydraulic motors 27, 27 are operated in the sending direction to the rear end side of the step boards 20. The front end of the body is 1A
When the hydraulic cylinders 14 and 14 are moved to the guides 10a and 10b side of the tilting operation unit 1B, the tilting operation unit 1B is tilted to a certain angle. On the other hand, the walk board 20 is delivered to a predetermined position and automatically stops. By this, the ground plates 23, 23
Is grounded, and the walk board 20 is laid between the luggage carrier 1 and the ground surface.

When the pull-in side start switch is pushed from this state, the hydraulic motors 27, 27 are moved to the pull-in side to the front end side of the step board and at the same time the hydraulic cylinders 14, 14 are moved.
Is moved in the push-out direction and before the front end of the step board 20 reaches the guides 3a and 3b of the luggage carrier body 1, the tilting motion unit 1 is provided.
B is lifted up to the position in the extension direction of the luggage carrier body 1A, and then the walk board 20 is drawn into the guides 3a, 3b of the luggage carrier body 1A.

In addition to the automatic operation described above, the hydraulic motors 27, 27 and the hydraulic cylinders 14, 14 can be operated by manual individual switches.

[0021]

As described above, the vehicle carrier of the present invention is
By allowing the walk board to be retracted not only to the tilting motion section on the rear side of the platform but also to the inside of the main body of the platform on the front side of the platform, it is possible to use a longer platform than before, allowing the vehicle to run on its own. When loading and unloading, since the inclination angle of the step board is small, there is an effect that loading and unloading can be carried out without trouble even in a vehicle with a low vehicle height.

Further, in the present invention, a long step board is used, but since it is stored under the floor of the cargo bed, stability during running in the stored state is improved,
There is an effect that the driving performance becomes good as well as a normal freight vehicle.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view showing an embodiment of the present invention.

FIG. 2 is a vertical sectional side view of the above.

FIG. 3 is a vertical sectional rear view of the above.

FIG. 4 is a vertical cross-sectional side view showing a state where the above step plate is extended.

FIG. 5 is a partially enlarged cross-sectional view of the above step board feeding mechanism portion.

FIG. 6 is a side view showing a drive mechanism portion of the tilting operation unit of the above.

FIG. 7 is a plan view of the same.

[Explanation of symbols]

 1A platform main body 1B tilting motion unit 1 platform 2 chassis 3 rear wheels 3a, 3b step board storage guide 4,5 rails 6A, 6B luggage floor plate 7 fixed side frame 10a, 10b guide material 11, 12 horizontal rail 13 pivot 14 hydraulic cylinder 14a Entry / Exit Axis 15 and 16 Cylinder Support 17 Short Link 18 Long Link 19 Axis 20 Walk Plate 21 Ladder Frame 22 Passage Plate 23 Grounding Plate 24 Connecting Material 25 Rack 26 Pinion Gear 27 Hydraulic Motor

Claims (2)

[Claims] 1. A tilting body that is driven to be bent in a direction tilting toward the ground side is provided at a rear end portion of a body of a loading body provided on a vehicle body, and a step plate is projected in an extension direction of the tilting body. In a vehicle carrier that is freely equipped, step board storage guides are provided in a continuous arrangement with respect to the luggage carrier main body and the tilting operation section, and the step boards are slidably stored while straddling the both sections, A vehicle transporting vehicle comprising the step board moving-in / out driving means, wherein the step board is driven in a projecting direction, and the tilting operation section is operated with its front end reaching the tilting operation section. 2. The vehicle carrier according to claim 1, wherein a hydraulic motor is used as the step board moving-in / out driving means, and a drive transmission mechanism by a pinion rack is interposed between the hydraulic motor and the step board.