JPH0219309Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a loading platform device for a truck that allows cargo handling operations to be carried out easily.

The present invention will be specifically explained based on the embodiment shown in FIGS. 1 to 7. Reference numeral 1 denotes a cargo box of a van-type truck, 2 a main frame extending in the longitudinal direction of the vehicle, 4
6 is a sub-frame, 6 is a main floor member mounted on the chassis frame formed by these frames 2 and 4, and 8
1 is a sub-floor member separately provided on the rear edge of the same floor member;
0 is a hydraulic cylinder device interposed between the partial frame 12 provided outside the main floor member 6 and the sub-floor member 8, 14 is its cylinder, and 16 is a rod.
Reference numeral 18 denotes a hydraulic vehicle body jack provided on the partial frame 12 as clearly shown in FIGS. When performing cargo handling work by vertically displacing the partial frame 12, the rod 20 expands to support the load acting on the partial frame 12. In addition, the sub-floor member 8 has a seventh
As shown in the figure, a recess 26 is formed into which a material handling vehicle 24 such as a forklift vehicle can enter and retreat. Reference numeral 28 denotes an arm erected on the side of the sub-floor member 8, the upper end of which is connected to the upper end of the rod 16. Furthermore, a roller 30 that is a sub-floor member roller extending in the longitudinal direction of the vehicle is disposed around the periphery of the recess 26, and a roller 32 is also disposed on the main floor member 6 on an extension of the roller 30. Further, a rear door, which is known per se, is pivotally installed on the rear end surface 7 of the main floor member 6 so as to be openable and closable.

As shown in FIG. 3, when the sub-floor member 8 is on the same level as the main floor member 6 and is in a normal running condition, a cover member (not shown) may be provided in the recess 26, or a cover member (not shown) may be provided in the recess 26. Needless to say, a sealing member (not shown) for sealing the gap between the two sub-floor members 6 and 8 is provided.

Next, the operation of the apparatus of this embodiment having the above configuration will be explained. First, when the vehicle is in a running state, the sub-floor member 8 is in the state shown in FIG. When carrying out cargo handling work, the rear door and lid member (not shown) are opened and the hydraulic cylinder device 10 is activated, so that the sub-floor member 8 is lowered to the state shown in FIG. 4. Note that the rod 20 of the vehicle body jack 18 is also extended downward in advance as shown in FIG. In this state, the first, second,
As shown in FIG. 7, the cargo handling vehicle 24 is moved into the recess 26. Thus, the lower surface of the load 34 on the fork of the working vehicle 24 or the pallet (not shown) placed thereon comes into contact with the roller 30 of the sub-floor member 8.
Next, the work vehicle 24 is moved backward, and the sub-floor member is raised to the state shown in FIG. When the load 34 is pushed forward, it rolls on the rollers 30 and 32 and is loaded onto the main floor member 6. Further, by performing the operation opposite to the above, the cargo on the main floor member 6 can be loaded onto and unloaded from the cargo handling vehicle 24 via the sub-floor member 8.

According to this embodiment, the sub-floor member 8 in which the recess 26 for the approach and retreat of the cargo handling vehicle 24 is formed is replaced with the main floor member 8.
On the other hand, since it has a configuration in which it can be moved up and down by the hydraulic cylinder device 10, it exhibits an excellent practical effect that can greatly improve the efficiency of cargo handling work.

Further, when the sub-floor member 8 is moved up and down relative to the main floor member 6, the vehicle body jack 18 is grounded, and since the sub-floor member 8 and the main floor member 6 are provided with rollers 30 and 32, heavy objects can be Even during work, the load is supported by the car body jacks 18, and the car body posture is stable, making it easy to work.Also, the load can be easily moved by the rollers 30 and 32, making it easier to handle cargo when working with heavy objects. It has the effect of improving efficiency.

Although the above embodiment has been described with respect to a van type truck, it can also be applied to a normal so-called flat body type truck. Further, when the vehicle is running, the hydraulic cylinder device 10 is configured to maintain the extended state of the rod 16 as shown in FIG. 3 by applying hydraulic pressure to the device at all times. A configuration in which a hydraulic cylinder device is disposed so that the engine travels, or a double-acting cylinder may be used. In addition, in the above, both the main and sub-floor members 6,
8, a hydraulic cylinder device such as the hydraulic cylinder device 10 is used, but it goes without saying that a winding link mechanism using a chain or sprocket, or a rack and pinion mechanism may also be used.

[Brief explanation of drawings]

1 to 7 relate to an embodiment of the present invention, in which FIG. 1 is a schematic side view thereof, FIG. 2 is a plan view thereof, FIG. 3 is an enlarged sectional view taken along the line - in FIG. 2, and FIG. 4 is a sectional view similar to FIG. 3 with the sub-floor member lowered, FIG. 5 is an enlarged plan view of the main part at the rear end of the main floor member 6, and FIG. 6 is a cross-sectional view taken along the - line in FIG. The enlarged sectional view in FIG. 7 is an explanatory view showing the relationship between the sub-floor member 8 and the cargo handling vehicle 24. 2; Main frame, 4; Sub-frame, 6; Main floor member, 8; Sub-floor member, 10; Hydraulic cylinder device, 2
6; recess.

Claims (1)

[Scope of utility model registration request] A main floor member that is mounted on the chassis frame and has rollers arranged in the front-rear direction of the vehicle body, and a main floor member that is formed separately from the main floor member at the rear end of the vehicle body and has an opening in the rear direction of the vehicle body. A sub-floor member having a shape of a letter, a recess formed by the substantially U-shape of the sub-floor member into which a cargo handling vehicle can enter and retreat from the rear of the vehicle body, and a space between the chassis frame or the main floor member and the sub-floor member. an elevating means interposed in the auxiliary floor member for elevating and lowering the sub-floor member;
A vehicle body jack is provided on the undercarriage frame near the lifting means and extends to the ground during cargo handling operations to support the load transmitted via the lifting means, and a vehicle body jack is provided at the periphery of the recess of the sub-floor member and along the longitudinal direction of the vehicle body. A loading platform device for a truck, characterized in that it is equipped with rollers for a sub-floor member disposed along the same line.