JPH02175445A - Lift plate device of load carrying platform of truck - Google Patents

Abstract

PURPOSE:To store a cargo placed on a lifter plate as it is without unloading it on the floor by having an elevating lift plate whose horizontality is retained by support levers, horizontally stored on the load carrying platform of a truck. CONSTITUTION:The base ends of support levers 5, 6 of a lifter plate 4 are rigidly fixed respectively on both ends of shafts 2, 3, and their tips are respectively pivotally supported by side frames 7, 8 of the lifter plate 4. The shafts 2, 3 are respectively equipped with crank rods 9, 10 on their ways, and fore and aft crankshafts 11, 12 are connected with a connecting rod 13. When housing the lifter plate 4 on a load carrying platform, a cylinder rod 15 is contracted to pull up an oscillating rod 16, fore and aft shafts 2, 3 are rotated by rotating crankshafts 9, 10 upward with connecting rods 13, 20, support levers 5, 6 are rotated upward and the lifter plate 4 is raised in a state of horizontality, then placed on a horizontal joist 22 of the load carrying platform.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lift plate device that is attached to a truck bed and facilitates loading and unloading of heavy objects.

[Conventional technology]

Conventional lift plate devices have either a method in which the lift plate is stored behind the loading platform, or a method in which the lift plate stands up and functions as a balletry.

[5 Problems to be Solved by the Invention] When storing cargo in a truck box, the conventional lift plate device lowers the lift plate, loads the cargo on the lift plate, and then raises the lift plate. It was very troublesome to carry the cargo from the lift plate onto the floor of the truck, and when unloading the cargo, the cargo on the floor had to be placed on the plate again and lowered.

In view of the above points, the present invention stores the luggage placed on the lift plate as it is without transporting it from the lift plate to the floor when storing the luggage, and also stores the luggage as it is on the lift plate with the luggage placed on it even when loading and unloading. All you have to do is go down,
The present invention aims to provide a lift plate device that saves labor in cargo handling operations.

[Means to solve the problem]

In order to achieve the above object, the device of the present invention is characterized in that a lift plate that is raised and lowered while being maintained horizontally by a support lever is housed horizontally on a truck bed.

[Effect]

Next, the operation of the device of the present invention will be explained based on the drawings. When lowering the lift plate (4) from above the loading platform, the hydraulic cylinder (14) is operated and the cylinder rod (]5>
When extended, the swinging rod (16) tilts and the connecting rod (13>
(20> rotates the crank rods (9) and (10) downward and rotates the front and rear shafts (2>(3) to support the bar (
5) Rotate (6) downward to lower the lift plate (4) while keeping it horizontal. In addition, when storing the lift play 1-<4> on the loading platform, conversely shorten the cylinder rod (15) and move the swing rod (1
6), rotate the crank levers (9) and (10) upward using the connecting levers (13 and 20), and rotate the front and rear shafts (2+(
3), rotate the support levers (5) and (6) upward, and raise the lift plate (4) in a horizontal arch. 22) There is something to be placed on top. (Indicated by the solid line in Figure 1) [Example] Hereinafter, an example of the device of the present invention will be described based on the drawings.
1) is a chassis of 722 tigers;
) are provided with two shafts (2) and (3) in the transverse direction in front and back of the rear part.

The base ends of support levers (5) and (6) of the lift plate (4) are respectively fixed to both ends of the shafts (2) and (3'). They are each pivoted (7>(8)) to the side frame of (4).

In addition, the shafts (2) and (3) each have crank rods (9) and (1) in the middle.
0), and the front and rear crankshafts (11) (12> have both ends supported by a connecting rod (11) <12).
13).

The swing rod (16) is attached to the cylinder rod (15) of the hydraulic cylinder (14) whose base end is fixed to the chassis (1).
) is pivotally supported (17〉), the base end of the swinging rod (16) is pivoted to the brake gear 1-(Is) provided on the chassis (1), and a crank is attached to the tip of the swinging rod (16). One end of a connecting rod (20) is pivotally supported (19) so as to be rotatable three times on the shaft (11), and the other end is pivotally supported (21).

(22) is the horizontal joist of the truck stand, (23) is the vertical joist,
(24) is the floor.

〔Effect of the invention 〕

According to the present invention, since the lift plate is placed horizontally on the horizontal joists of the loading platform, there is no need to lower the load onto the floor with the load still on the lift plate, which saves labor in cargo handling work. At the same time, the lift plate is placed and stored on the horizontal joists, so it can withstand even heavy loads.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the device of the present invention. FIG. 2 is a partial perspective view of the same as above. sign (1) is the chassis (2>(3) is the axis (4) is a lift plate (5) (6) is the support lever (9) (10) are crank rods (11HI 2) is the crankshaft (13) and (20) are connected (14) is a hydraulic cylinder (15) is the cylinder rod (16) is a swinging rod

Claims (1)

[Claims] A lift plate device for a truck bed, characterized in that a lift plate that is raised and lowered while being held horizontally by a support lever is stored horizontally on the truck bed.