JPS6347151Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle footboard device that can be attached to the rear end of a vehicle or a transportation vehicle that loads heavy objects and can be easily loaded onto the transportation vehicle.

Conventionally, as shown in FIG. 1, for example, there is a footboard device in which a footboard 2 is rotatably attached to the rear end of a vehicle 1. The footboard 2 is rotatable about a horizontal shaft 4 provided along the rear end of the loading platform 3, and is driven to swing by a hydraulic cylinder mechanism.

However, when attempting to load a loaded vehicle that is longer than the loading platform, the upright footboards become a hindrance, making it virtually impossible to load the vehicle. Therefore, it is conceivable to make the footboards 2 movable laterally along the horizontal axis 4, but even if the footboards 2 are moved to both ends of the vehicle, the width of the loaded vehicle is approximately equal to the width of the vehicle. loading becomes difficult or impossible.

In view of these points, the present invention solves the above-mentioned drawbacks by configuring a footboard to rotate around a vertical axis with respect to a mouth-shaped frame surrounding the footboard for the purpose of loading and transporting a loaded vehicle that is longer than the vehicle loading platform. The main purpose is to propose this kind of footboard device that solves this problem.

An embodiment of the present invention will be described in detail below with reference to the drawings.

2 and 3 are a side view and a front view of the device of the present invention. Reference numeral 10 indicates the entire footboard device, which is assembled into a structure to be described later and is obtained by cutting off the rear part of the cargo platform of the vehicle body 11 and welding and fixing it to the chassis 12. As shown in FIG. 2, the footboard device 10 is fixed so that the bottom of a right-angled triangular frame 21 matches the height of the loading platform 13, and the footboard is placed at the intersection of the opposite side of the frame 21 and the hypotenuse at the bottom. 22 pivot shafts 23 for the mouth-shaped frame 22a are provided. The pair of left and right footboards 22 are kept upright at all times, and are used by laying them down on the ground when necessary.A frame 24 is set to the effective vehicle width l of the loaded vehicle, and a frame 24 is placed in the center of the frame 24 along the traveling direction. A wire mesh 26 is laid between the frame 24 and the reinforcing plate 25. Reference numeral 24a indicates a stopper of the footboard 22 fixed to the mouth-shaped frame 22a. Furthermore, on the free end side of the footboard 22, a spare footboard 22c is attached to the hinge 2 in consideration of the case where the distance between the ground and the rotation fulcrum 23 becomes large.
2b. 19 is the spare footboard 2
A support attached to the mouth-shaped frame 22a that supports the frame 2c when not in use is shown.

When the loaded vehicle is transported, the footboard 22 is in an upright state, and therefore a support 27 is provided to support the footboard 22. The support 27 is engaged between the mouth-shaped frame 22a of the footboard 22 and the frame 21, one side is rotatably pin-coupled to the frame 21, and the other side is a recessed part that engages with a pin 28 implanted in the frame 22a. 27a is provided. Therefore, since the left and right footboards 22 come into contact with the supports 27 from the inside, there is a risk that the footboards 22 may protrude outside the width of the vehicle when a long vehicle is loaded and transported, as shown in FIG. can be avoided.

In order to operate the footboard 22 from the upright state to the use state or vice versa, as shown in FIG. Piston 30 of cylinder 30
This is done by a. The cylinder 30 is rotatably supported by a base 31 attached to a mounting plate 21a corresponding to the oblique side of the frame 21.

In addition, in order to prevent the loaded vehicle from coming into contact with the footboard 22 held in an upright position when the length of the loaded vehicle is longer than the loading platform of the transport vehicle, the footboard 2 is placed against the mouth-shaped frame 22a.
2 is rotated around a hinge 33 provided in the vertical direction, thereby making it possible to load and transport long vehicles. FIG. 4 is a diagram showing a state in which a long vehicle is loaded, and the left and right footboards 22 are rotated toward the driver's seat side of the vehicle (left side in the figure), and in this state, the footboard device 10
It is also possible to keep a part of it in a fixed state.

The footboard device 10 configured in this way is installed on the vehicle body 1.
1, the rear part is cut off and fixed to the chassis 12 by welding as described above, but in reality it is attached to the fifth part.
As shown in the figure, a mounting plate 21a matching the width of the chassis frame 12a is sandwiched from both sides, and the frame 12a is
A plurality of circular holes 21b are formed in the mounting plate 21a that overlaps with a.
is drilled and welded along the hole 21b.

Next, to explain how to use the present invention, the footboard device 1 of the vehicle 15 to which the footboard device 10 is attached
0 is made by retracting the piston 30a of the cylinder 30. Note that the hydraulic pressure control circuit for the cylinder 30 is constructed by a known means, and therefore a description thereof will be omitted. Due to the contraction of the piston 30a, the footboard device 10 begins to rotate clockwise in FIG. 2 about the pivot shaft 23, and the free end of the footboard device 10 contacts the ground 18 (see FIG. ).

In this case, by providing a recess 21d on the support shaft 23 side of the reinforcing plate 21c, which engages when the mouth frame 22a of the footboard device 10 is laid down on the ground, the mouth frame 22a
2a comes into contact with the recess 21d and prevents further rotation, so in this state, the weight of the loaded vehicle passes through the footboard 22 and prevents damage due to unnecessary stress being applied to the piston 30a and the pivot shaft 23. It can be prevented.

Note that the mouth-shaped frame 22a of the footboard device 10 is located in the recess 21.
When the footboard 22 does not come into contact with the ground due to contact with the footboard 22c, the spare footboard 22c can be used.

As described above, the present invention consists of a mouth-shaped frame provided at the rear end of the vehicle so that it can be bent freely around the horizontal axis, and footboards attached to both vertical sides of the mouth-shaped frame so that they can be opened and closed around the vertical axis. Since the footboards are designed to prevent them from coming into contact with the loaded object, when attempting to load a loaded vehicle that is longer than the length of the loading platform of the vehicle, the footboards should be opened in the longitudinal direction of the vehicle relative to the mouth-shaped frame. Since the rear end of the vehicle is opened, a long vehicle can be transported into this open space with a portion of the vehicle protruding.

Furthermore, since the triangular frame supporting the mouth frame and the mouth frame are rotatable at a position lower than the height of the cargo bed of the vehicle, the center of rotation of this type of footboard device is provided along the rear end of the vehicle. The footboard itself can be made shorter than the structure, and its weight can be reduced. Further, the footboard device is less subject to height limitations due to its height (largeness) when it stands upright during transportation. In addition, in consideration of this point, the desired footboard mechanism can be achieved with an extremely simple structure compared to the conventional structure which requires a mechanism for tilting the loading platform.

Furthermore, according to the present invention, a support is provided between the mouth-shaped frame and the vehicle loading platform frame to support the footboard device when it is folded and erected. This has the effect of avoiding the risk of the footboard protruding outside the width of the vehicle during transportation with a loaded vehicle.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an example of a conventional footboard device;
2 and 3 are a side view and a front view showing an example of the present invention, and FIG. 4 is a side view showing the usage state of the present invention,
FIG. 5 is a diagram showing the mounting structure of the present invention, and FIG. 6 is a side view showing the state of use of the present invention. 10... Footboard device, 11... Vehicle body, 13...
Loading platform, 21... Frame, 22... Footboard, 22
a... Mouth-shaped frame, 23... Support shaft, 27... Support, 33... Hinge.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. Consists of a mouth-shaped frame provided at the rear end of the vehicle so that it can be bent freely around the horizontal axis, and footboards attached to both vertical sides of the mouth-shaped frame so that they can be opened and closed around the vertical axis. A vehicle step plate device characterized in that the plate does not come into contact with a loaded object. 2. The footboard device for a vehicle according to claim 1, wherein a support for supporting the stepboard device when it is folded and erected is provided between the mouth-shaped frame and the carrier frame of the vehicle.