JP2001163111A - Loading space inclining device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase stability in inclining a loading space by disposing a forward support point of the loading space in front of a vehicle. SOLUTION: A cylinder 8 extending in parallel with the loading space 1 and toward the front of the vehicle is mounted on a guide frame 4 for slidably supporting the loading space 1, and one end of an arm 6 whose other end is rotatably mounted to a chassis frame 3 is rotatably connected to the front end of a rod 8a of the cylinder 8. When the cylinder 8 is contracted, the arm 6 is laid, and the loading space 1 and the guide frame 4 are horizontal. When the cylinder 8 is extended, the arm 6 rotates toward the upper front of the vehicle and stands, the loading space 1 and the guide frame 4 incline. The cylinder 8 hardly protrudes below the chassis frame 3, therefore a contracting length is not regulated, a connecting point between the arm 6 and the chassis frame 3, and a connecting point between the cylinder 8 and the guide frame 4 can be disposed flexibly to extend a distance between a spindle 5 and them, thus it is possible to increase stability in inclining the loading space.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilting device for a carrier of a vehicle for transporting automobiles.

[0002]

2. Description of the Related Art For example, as an inclining device for a carrier of an automobile transporting vehicle, there is one described in, for example, JP-A-10-181418. As shown in FIG. 4, this loading bed tilting device connects a guide frame B and a chassis frame A at a rear portion of the vehicle so as to be tiltable by a support shaft C, and furthermore, a chassis frame A and a guide frame B A cylinder D that can expand and contract in the vertical direction is interposed between the cylinders and the cylinder D is extended, for example, as shown in FIG. In the loading platform tilting device described in the above publication, the loading platform E is slidable with respect to the guide frame B, the guide frame B is tilted by the cylinder D, and the loading platform E is slid backward. I have.

[0003]

However, in the above-described conventional carrier inclining device as described above, the guide frame is directly inclined by a cylinder that can expand and contract in the vertical direction or almost in the vertical direction. It protrudes below the chassis frame, causing interference with the ground. Further, the extension length of the cylinder for obtaining the required inclination angle of the carrier is determined by its mounting position.
That is, the more the cylinder is provided at the front of the vehicle, the longer the distance to the support shaft and the stability of the carrier when inclined are improved, but the extension length of the cylinder must be increased accordingly. For that purpose, the outer tube for accommodating the inner rod must be made longer, so that even when the cylinder is contracted to level the carrier, the length becomes longer. On the other hand, the height position of the loading platform is also restricted due to a demand for lowering the center of gravity of the loading platform. Then, a problem such as the ground height of the lower end of the cylinder becoming too low occurs, so the length of the cylinder when contracted is regulated, and accordingly, the mounting position of the cylinder is slightly closer to the rear of the vehicle,
A problem arises in that the distance from the support shaft is shortened and the stability at the time of tilting the carrier is reduced.

[0004] The present invention has been made in view of these problems, and can secure the ground clearance, increase the distance between the tilting support shaft of the loading platform and the tilting fulcrum, and increase the distance when the loading platform tilts. It is an object of the present invention to provide a bed tilting device capable of improving stability.

[0005]

In order to achieve the above object, according to the present invention, a carrier tilting device according to a first aspect of the present invention is a device for tilting a carrier that is tiltably supported by a support shaft at a rear portion of a chassis frame. An arm, one end of which is rotatably connected to the chassis frame, in front of the support shaft, and an arm parallel to the carrier and capable of extending and contracting in the front-rear direction of the vehicle and provided on the carrier, and the other end of the arm is provided on the carrier. And a connected cylinder.

According to a second aspect of the present invention, there is provided a carrier tilting device which is supported by a support shaft at a rear portion of a chassis frame so as to be capable of tilting. An arm is rotatably connected to the carrier, and a cylinder is provided on the chassis frame and is extendable in the vehicle front-rear direction and is connected to the other end of the arm.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall view showing an embodiment of an automobile transporting vehicle in which the carrier tilting device of the present invention is developed. At the rear end of the loading platform 1 on which the automobile is mounted, a rear fan 2 which also serves as a slope for mounting the vehicle is rotatably mounted.

The carrier 1 is slidably attached to a guide frame 4 disposed above the chassis frame 3 in the vehicle longitudinal direction. Specifically, FIG.
As shown in the left half of the figure, guide rails 11 made of H-shaped steel elongated in the vehicle front-rear direction are attached to both sides in the vehicle width direction of the lower surface of the loading platform 1, while guide rails 4 are provided on both outer sides in the vehicle width direction. A rotatable roller 12 is provided, and the roller 12 supports the lower surface of the upper flange of the H-shaped steel guide rail 11. 1 is slidable. Reference numeral 13 in FIG. 2 denotes a cylinder used to slide the carrier 1 with respect to the guide frame 4.

The guide frame 4 is attached to the chassis frame 3 at the rear of the vehicle via a support shaft 5 so as to be tiltable. At the rear end of the guide frame 4, a support leg 14 for supporting the carrier 1 and the guide frame 4 when they are tilted is attached. On the other hand, one end of an arm 6 is attached to the chassis frame 3 forward of the support shaft 5 through a rotating shaft 7 rotatable with respect to the chassis frame 3. A cylinder 8 is attached to the guide frame 4 so as to extend and contract in the vehicle front-rear direction in parallel with the loading platform 1 and, in this case, extend forward of the vehicle. This cylinder 8
The other end of the arm 6 is rotatably connected to the tip of the rod 8a. Further, as shown in the right half of FIG. 2, a roller 9 rotatable outward in the vehicle width direction is attached from the other end of the arm 6 to a guide made of a mold steel provided on the guide frame 4. It is supported by rails 10. The left and right guide frames 4 are connected at several places by connecting members 15.

Therefore, when the rod 8a of the cylinder 8 is contracted, as shown in FIG. 1a, the arm 6 is tilted rearward (sleeping) with respect to the rotation shaft 7 and the lower end of the arm 6 The height position between the vehicle-body-side connection point of the section and the carrier-side connection point at the upper end is low, and the carrier 1 and the guide frame 4 are in a horizontal or substantially horizontal state. When the rod 8a of the cylinder 8 is extended from this state, as shown in FIG.
The roller 9 moves in parallel with the carrier and forward of the vehicle along the guide rail 10, and accordingly, the arm 6 rotates upward around the rotation shaft 7 in front of the vehicle. Eventually, cylinder 8
When the rod 8a extends completely, the arm 6 stands up to a substantially vertical state, and the height position between the vehicle body-side connection point at the lower end of the arm 6 and the carrier-side connection point at the upper end thereof increases. The guide frame 4 is inclined by being pushed upward on the front side of the vehicle.

When the carriage slide cylinder 13 is extended from this state, as shown in FIG. 1C, the carriage 1 slides rearward of the vehicle with respect to the guide frame 4, and the rear end thereof touches the ground. Therefore, the rear fan 2 is turned backward to make the vehicle uphill. To store the carrier 1 and return it to the horizontal position, the procedure may be exactly the same as described above.

In this embodiment, what is necessary is to move the connection point between the arm and the cylinder as described above. For example, when the rod 8a of the cylinder 8 extends rearward of the vehicle, The connection point with the arm 6 may be located at the rear of the vehicle with the rod 8a of the cylinder 8 extended, and the connection point with the arm 6 may be moved forward of the vehicle when the rod 8a is contracted.

As described above, according to the bed tilting apparatus of the present embodiment, the arm 6 is rotated by extending and contracting the cylinder 8, and the bed 1 and the guide frame 4 are horizontally or almost horizontally when the arm 6 is lying. When the arm 6 stands, the carrier 1 and the guide frame 4 are tilted, so that the arm 6 is less protruded below the chassis frame 3, that is, toward the ground, and the cylinder 8 at the time of contraction is almost restricted in length. There is no. Therefore, the connection point between the arm 6 and the chassis frame 3 and the connection point between the cylinder 8 and the guide frame 4 can be freely arranged. Therefore, the position of the platform support point with respect to the support shaft 5 is arranged in front of the vehicle. Take a long distance between them,
It is possible to enhance the stability when the bed is inclined.

Next, another embodiment of the bed tilting apparatus of the present invention will be described with reference to FIG. The main vehicle configuration of this embodiment is the same as that of the embodiment of FIG. 1 described above, but in this embodiment, the above-described bed tilt cylinder 18 is attached to the chassis frame 3. The cylinder 18 extends and contracts in the front-rear direction of the vehicle. In this embodiment, the rod 18a extends toward the front of the vehicle. On the other hand, one end of the arm 16 is rotatably attached to the guide frame 4 via a rotation shaft 17, and the other end is rotatably connected to the tip of a rod 18 a of the cylinder 18. I have.

Therefore, in this embodiment, in the state where the rod 18a of the cylinder 18 is contracted, as shown in FIG. The height position between the vehicle body side connection point at the lower end of the arm 16 and the carrier side connection point at the upper end is low, and the carrier 1 and the guide frame 4 are in a horizontal or almost horizontal state.

From this state, the rod 18 of the cylinder 18
When a is extended, as shown in FIG. 3B, the arm 16 rotates about the rotation shaft 17 downward and forward of the vehicle. Eventually, when the rod 18a of the cylinder 18 is completely extended, the arm 16 stands up to a substantially vertical state, and the height position between the vehicle body side connection point at the lower end of the arm 16 and the carrier side connection point at the upper end thereof increases. The loading platform 1 and the guide frame 4 are inclined by being pushed upward on the front side of the vehicle.

When the bed slide cylinder 13 is extended from this state, the bed 1 slides rearward with respect to the guide frame 4 with respect to the guide frame 4 as shown in FIG. Therefore, the rear fan 2 is turned backward to make the vehicle uphill. To store the carrier 1 and return it to the horizontal position, the procedure may be exactly the same as described above.

It is to be noted that what is required in the present embodiment is that the connection point between the arm and the cylinder only needs to move as described above. For example, when the rod 18a of the cylinder 18 extends rearward in the vehicle, Alternatively, the connection point with the arm 16 may be located at the rear of the vehicle with the rod 18a of the cylinder 18 extended, and the connection point with the arm 16 may be moved forward of the vehicle when the rod 18a is contracted.

As described above, according to the bed tilting device of the present embodiment, the arm 16 is rotated by extending and contracting the cylinder 18 so that the bed 1 and the guide frame 4 are horizontally or almost horizontally when the arm 16 is lying. Since the carrier 1 and the guide frame 4 are inclined when the arm 16 stands up, the cylinder 18 does not protrude below the chassis frame 3, that is, toward the ground. There are no regulations. Therefore, the connection point between the cylinder 18 and the chassis frame 3 is also determined by the arm 16 and the guide frame 4.
The connection point with the support shaft 5 can be freely arranged.
The position of the platform support point with respect to the vehicle can be arranged in front of the vehicle to increase the distance between the two, thereby increasing the stability when the platform is tilted.

Although the embodiments described above are all car carrier vehicles in which a carrier slides on a guide frame, the present invention is applied to a car carrier vehicle of a type that only leans without sliding the carrier. It is a matter of course.

[0021]

As is clear from the above description, according to the carrier tilting device of the present invention, the vehicle in front of the support shaft of the carrier can be
A guide frame is provided with a cylinder which is parallel to the loading platform and which can be extended and contracted in the front-rear direction of the vehicle, or a cylinder which is extendable and contractible in the front-rear direction of the vehicle is provided on the chassis frame, and an arm connected to these cylinders is provided on the cylinder arrangement side The arm is rotated by expanding and contracting the cylinder, the bed is inclined when the arm is standing, and the bed is horizontal when the arm is lying,
Since the cylinder does not protrude below the chassis frame, the ground clearance can be secured, and the length of the cylinder at the time of contraction is hardly restricted,
Therefore, since the mounting position of the cylinder, the connection point of the arm, and the like can be freely set, the support point of the guide frame can be set away from the support shaft and set in front of the vehicle. Stability can be improved.

[Brief description of the drawings]

FIG. 1 is an operation explanatory view showing an embodiment of an automobile transporting vehicle in which a carrier tilt device of the present invention is developed.

FIG. 2 is a partial longitudinal sectional view of the bed tilting device of FIG. 1;

FIG. 3 is an operation explanatory view showing another embodiment of an automobile transporting vehicle in which the bed tilting device of the present invention is developed.

FIG. 4 is an explanatory view of a vehicle for transporting an automobile provided with a conventional carrier tilting device.

[Explanation of symbols]

 1 is a loading platform 2 is a rear fan 3 is a chassis frame 4 is a guide frame 5 is a supporting shaft 6 is an arm 7 is a rotating shaft 8 is a cylinder 16 is an arm 17 is a rotating shaft 18 is a cylinder

Claims (2)

[Claims] 1. An inclining device for a carrier that is tiltably supported by a support shaft at a rear portion of a chassis frame, the arm having one end rotatably connected to the chassis frame at a position forward of the support shaft and a vehicle; And a cylinder provided on the carrier and parallel to the other end of the arm and connected to the other end of the arm. 2. An inclining device for a carrier, which is supported by a support shaft at a rear portion of a chassis frame so as to be tiltable, an arm having one end rotatably connected to the support in front of the support shaft and one end of the vehicle, and And a cylinder that is expandable and contractible in a direction, is provided on a chassis frame, and is connected to the other end of the arm.