JPS6127315Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention consists of a large bed that can be tilted up and down and tilted relative to the truck body, an intermediate floor that is attached to the large floor with a hinge on the inside of this large floor, and a This invention relates to a rear upper floor of a large truck for transporting automobiles, which is composed of a small floor hinged to the middle floor.

Conventional rear upper decks are comprised of a large bed that can be moved up and down and tilted relative to the truck body, and a rotating bed that is hinged to the large bed inside the large bed. If you shorten the length of the revolving bed so that one passenger car can be loaded on each of the large bed and the revolving bed, then when loading trucks, the revolving bed is too short to accommodate the truck. Since trucks cannot be stacked on the moving floor, the large floor and rotating floor are integrated and then the trucks are stacked on the upper floor. However, since the height of the cab of a loaded truck exceeds the maximum limit allowed by law, it is necessary to lower the height of the cab by tilting the upper rear floor. The rear upper floor cannot be tilted because the upper floor hits the cab of the truck loaded on the lower floor.
Therefore, trucks cannot be loaded on the rear upper floor. Furthermore, if the length of the revolving bed is made longer so that trucks can be loaded on the revolving bed, only one passenger car can be loaded on the rear upper floor. As described above,
When a large truck for transporting a passenger car and a large truck for transporting a truck are used together, there is a drawback that the loading efficiency of the large truck is poor.

The object of this invention is to obtain a rear upper floor of a large truck which is not exclusively used for transporting passenger cars or trucks, but can efficiently load and transport both passenger cars and trucks.

In the following explanation, front and rear and left and right refer to the front and rear and left and right, respectively, when looking at the truck from the rear, and since the truck is symmetrical except for some devices that drive the front and rear upper floors, we will mainly explain one side. .

An embodiment of this invention will be described first from the configuration based on the drawings. As shown in Figures 1 to 3,
A girder 4 supported by a front pillar 2 provided at the front end of the lower floor 1 of the truck and a middle pillar 3 provided at the front extends above the driver's cab, and the front upper floor 5 on which cars are loaded is supported by the girder 4. It is attached by a hinge to the inside of the front part. Large vertical members 8 on the left and right sides of the large floor 7, which are the constituent parts of the rear upper floor 6
The rear end is the rear large horizontal member 9, and the length of the large longitudinal member from the rear is about 20
% are connected by front large horizontal members 10, and a striped steel plate is placed between the front and rear large horizontal members to form a driving path for the car. A slider 12 that slides up and down in the groove 11 of the middle pillar 3 is attached to the outside of the front end of the large vertical member 8, so that the front end of the large bed 7 can move up and down along the middle pillar 3. The rear ends of the left and right middle vertical members 14 of the middle floor 13 are connected by the rear middle horizontal members 15, and the middle part is connected by the front middle horizontal members 16, and a striped steel plate is stretched between the front and rear middle horizontal members to form a vehicle running path. It's getting old. Connect the front ends of the left and right vertical members 18 of the small floor 17 with the front small horizontal members 19 and the rear ends with the rear small horizontal members 20,
Striped steel plates are placed between the front and rear small cross members to create a driving path for cars. Rear middle horizontal member 15 is front large horizontal member 1
Move the middle floor 13 to the large floor 7 so that it is slightly forward of 0.
The small vertical member 1 is placed between the left and right bearing pieces 21 that protrude downward and are fixed to both sides of the front end of the medium vertical member 14.
8, and place the small bed 17 inside the middle bed 13 so that the rear small cross member 20 is slightly forward of the front middle cross member 16. As shown in FIG. 4, the rotating shaft 22 is composed of a bolt head, a shaft portion 23, and a threaded portion 24. The shaft portion 23 includes the large vertical member 8, the spacer 25,
One bearing piece 21, small vertical member 18, other bearing piece 2
1 and the spacer 25, respectively. Select a spacer with an appropriate thickness,
Furthermore, by fixing the double nuts 26 at appropriate positions on the threaded portion 24, the distance between the large vertical member and the middle vertical member can be set to a desired distance. A threaded part 24 is screwed into a pipe 27 that connects the left and right rotating shafts, and the nut is tightened at a position where the bearing piece 21 does not come into pressure contact with the side surface of the small vertical member 18 to fix the rotating shaft to the pipe. Because the medium and small vertical members overlap, a wide small bed can be obtained, and the left and right rotation axes are connected by a single pipe.
Since it is the rotation axis of a book, the inner diameter of the bearing can be made considerably larger than the outer diameter of the shaft, making it easier to manufacture the bearing. This has the advantage that the shaft part can be easily inserted into the bearing part, and therefore the rear upper floor can be easily assembled.

The device for moving the rear upper floor will be explained based on the drawings. As shown in FIG. 5, by operating the hydraulic cylinder 28 connected to the front part of the large vertical member 8 and the lower floor 1,
Move the front end of the large bed 7 up and down. One of the wire ropes attached to the winch 29 installed under the floor of the lower floor 1 rotated by a motor is connected to the rear part of the large vertical member 8 via a vertical rope wheel installed under the floor and a vertical rope wheel installed at the upper end of the rear column 30. However, the other wire rope is connected to the rear part of the large longitudinal member 8 via two horizontal rope wheels provided under the floor, a vertical rope wheel, and a vertical rope wheel provided at the upper end of the rear column 30. As shown in FIG. 6, one of the wire ropes attached to the lower surface of the front large horizontal member 10 is connected to a vertical rope wheel provided at the rear end of the middle vertical member 14 and a horizontal rope wheel 31 provided at the rear.
, one end of the hydraulic cylinder 32 is perpendicular to the mid-length member, and the other end of the hydraulic cylinder 32 is connected to the mid-length member 14 . The other wire rope attached to the lower surface of the front large horizontal member 10 passes through the vertical rope wheel provided at the rear end of the middle vertical member 14, the horizontal rope wheel provided at the rear, and the horizontal rope wheel 31, and is then connected to the hydraulic cylinder 32. connected at one end. Front middle cross member 1
One of the wire ropes attached to the lower surface of 6 passes through a vertical rope wheel provided at the rear end of the small vertical member 18 and a horizontal rope wheel 33 provided at the front, and is connected to a hydraulic cylinder 34 that is perpendicular to the small vertical member 18. At one end, the other end of the hydraulic cylinder 34 is connected to the small longitudinal member 18 . The other wire rope attached to the lower surface of the front middle horizontal member 16 is connected to the vertical rope wheel provided at the rear of the small vertical member 18, the horizontal rope wheel provided at the front, and the horizontal rope wheel 3.
3, and is connected to one end of the hydraulic cylinder 34.

The operation of the embodiment is explained in the case of loading a passenger car, based on FIG. Let's start with the state where the height is the same as that of The rear part of the rear upper floor 6 is lowered and placed on the lower floor 1, and a gangplank is hung between the lower floor and the ground. One passenger car on the front upper floor 5, one on the large floor 7 and middle floor 13, and one on the small floor 1.
Stack a total of 2 units, 1 in 7, on the rear upper floor 6.
Raise the rear of the unit and level the rear upper floor. After loading two passenger cars on the lower floor 1, turn the small bed 17 on which the cars are loaded clockwise to tilt the passenger cars, and then,
After turning the front upper floor clockwise, move the loaded car backwards. As described above, the height and length of a truck loaded with five passenger cars are kept within the maximum limit permitted by law. When unloading a passenger car, do the reverse of the above order.

The operation of the embodiment will be described with reference to FIG. 3 when a truck is loaded, starting from a state in which the front and rear upper floors are the same as when a passenger car is loaded. Lower the rear part of the upper floor, attach the lower floor, and hang the gangplank between the lower floor and the ground. Load the truck on the front upper floor 5 by moving backwards, then load one truck on the integrated medium and small floors 13 and 17 by moving backwards, raise the rear upper floor,
After loading two trucks in reverse on the lower floor, turn the integrated medium and small floors 13 and 17 clockwise. In the above manner, the height and length of a truck loaded with four trucks is kept within the maximum limit allowed by law. When lowering the truck, reverse the above order.

After this idea, a large truck with an upper floor was created.
Passenger cars and trucks can be loaded and transported efficiently.

[Brief explanation of the drawing]

Fig. 1 is a side view of the embodiment of this invention, Fig. 2 is a plan view of the same as above, Fig. 3 is a side view of the same as above, Fig. 4 is a sectional view taken along line 4-4 in Fig. 1, Fig. 5, Figure 6 is an explanatory diagram of the operation system for the rear upper floor, 1...Lower floor, 2...Front column, 3...Middle column, 4...
...Girder, 5...Front upper floor, 6...Rear upper floor, 7...
Large bed, 8...Large vertical member, 12...Slider, 13...
Middle floor, 14... Middle vertical member, 17... Small floor, 18...
Small vertical timber.

Claims (1)

[Scope of utility model registration request] In a large truck equipped with a front upper floor 5 attached by a hinge to the front end of a girder 4 supported by a front column 2 and a middle column 3 provided at the front end and front part of the lower floor 1, respectively, along the middle column 3. A large floor 7 in which the rear parts of the left and right large vertical members 8, each having a sliding slider 12 fixed to the outside of the front end, are connected by a running path, and the front part of the large vertical members 8 and the lower floor 1.
A hydraulic cylinder 28 coupled to the rotary shaft 22, which passes through the front part of each of the large longitudinal member 8, medium longitudinal member 14, and small longitudinal member 18 sequentially from the outside, and one end of which is attached to a winch 29, and is connected via a rope wheel. , the other end is attached to two wire ropes connected to the rear of the left and right large vertical members 8, an intermediate floor 13 that connects the rear parts of the left and right medium vertical members 14 with a running path, and one end is attached to the intermediate vertical member 14. Attach it to the other end of the hydraulic cylinder 32, pass through the rope wheel,
Two wire ropes each attached to the front large horizontal member 10, a small floor 17 that connects all of the left and right small vertical members 18 with a running path, and the other end of a hydraulic cylinder 34 whose one end is attached to the small vertical member 18. The rear end of the middle floor 13 is placed forward of the front end of the running path of the large floor 7, and the rear end of the middle floor 13 is placed in front of the front end of the running path of the large floor 7, and the rear end of the middle floor 13 is placed in front of the front end of the running path of the large floor 7. With the end forward of the running path of the middle floor 13, the front part of the small vertical member 18 is attached to the front end of the middle vertical member 14 with a hinge, and the middle vertical member 14
The rear upper floor of a large truck is characterized in that the front part of the large vertical member 8 is attached to the front part of the large longitudinal member 8 by means of a hinge.